CN113669500B - BIM engineering terminal heating control equipment - Google Patents
BIM engineering terminal heating control equipment Download PDFInfo
- Publication number
- CN113669500B CN113669500B CN202110932512.1A CN202110932512A CN113669500B CN 113669500 B CN113669500 B CN 113669500B CN 202110932512 A CN202110932512 A CN 202110932512A CN 113669500 B CN113669500 B CN 113669500B
- Authority
- CN
- China
- Prior art keywords
- sensor
- cavity
- supporting block
- water
- magnet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0025—Electrical or magnetic means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/10—Arrangement or mounting of control or safety devices
- F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
- F24D19/1009—Arrangement or mounting of control or safety devices for water heating systems for central heating
- F24D19/1015—Arrangement or mounting of control or safety devices for water heating systems for central heating using a valve or valves
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Indication Of The Valve Opening Or Closing Status (AREA)
Abstract
The invention relates to the technical field of BIM engineering control, in particular to BIM engineering terminal heating control equipment which comprises an outer shell, a first cavity, an inner shell, a valve, a motor, an auxiliary channel and a controller, wherein the first cavity is arranged on the outer shell; a first supporting block is fixedly connected to the side wall of the first cavity; a magnet block is connected in a sliding manner in the auxiliary channel; a second sensor and a second supporting block are arranged at the bottom of the first cavity; the bottom of the shell is provided with a through hole groove; a through hole plug is plugged in the through hole groove; according to the invention, when the sensor I transmits the position change of the magnet block to the controller when the water hammer phenomenon occurs in the heating pipe, the controller does not close the terminal valve, so that the purpose of preventing the controller from closing the terminal valve by mistake when the water hammer phenomenon occurs is achieved, and the using effect of the terminal valve is ensured; meanwhile, when the leakage amount of the terminal valve is small, the controller does not close the terminal valve and notifies workers to overhaul, so that a user can be ensured to normally use the heating system, and the leaked water can be prevented from affecting the normal operation of the terminal valve.
Description
Technical Field
The invention relates to the technical field of BIM engineering control, in particular to BIM engineering terminal heating control equipment.
Background
The BIM fully names the building information model, and the function of the BIM is to enable project information to be fully shared and transmitted in a lossless manner in the whole process of planning, designing, constructing and operating maintenance, enable engineering technology and management staff to efficiently and correctly understand and cope with various building information, provide a solid foundation for cooperative work of multiple parties, and provide a reliable basis for decisions of all parties in the whole life period from concept to demolition of the project; when BIM technology is applied to the residential heating pipe network field, control and monitoring are needed to be carried out on each user terminal, and the key point of technical implementation is often on a terminal valve, and in actual use, the terminal valve is often leaked, and in the prior art, although the terminal valve can be closed when the terminal valve is leaked, whether the terminal valve needs to be closed cannot be judged according to the leakage amount, so that when the leakage amount of the terminal valve is relatively smaller, the terminal valve cannot be closed, workers cannot be informed to maintain, and further the surrounding environment is influenced.
The invention discloses a BIM engineering terminal heating control valve, which comprises an electric cabinet, an upper cover, a motor, a hand wheel, a power-on structure, a temperature sensor, an auxiliary passage, a bottom cover, a left valve body, a self-locking spring, a piston, a vertical rod, a wireless communication module, a cross rod, a control module, a valve ball, a valve rod, a connecting block, a right valve body, a sealing seat, a retainer ring, a compensation spring, a sealing ring, a first magnetic block, a second magnetic block, a rotating groove, a trigger switch and an upper valve body, wherein the application number of the valve is CN 201911216800.6; the upper valve body comprises a supporting part, an upper shade part and a sealing part, an auxiliary passage is arranged in the upper valve body, and the middle part of the upper cover is provided with the round cover; the technical scheme is provided with a self-locking structure to realize water leakage self-locking; the operation part is isolated from the bottom surface and the heat source as much as possible, so that scalding is prevented; the temperature sensor for sampling the temperature measuring point is arranged on the auxiliary passage, the mask with the upper cover is used for protecting the temperature measuring point, and the flow of the auxiliary passage is small, so that the sampling detection of the water temperature is facilitated; however, when the water hammer phenomenon is generated in the heating pipe, the flow speed of partial water flow is increased, so that when the water flow reaches one end of the auxiliary passage, the water pressure at the two ends of the auxiliary passage is changed, the terminal valve is not leaked to close the terminal valve, and meanwhile, when the leakage amount of the terminal valve is relatively small, the water pressure difference at the two ends of the auxiliary passage is not obvious, the terminal valve cannot be closed or prompt notification is carried out, and further the limitation of the scheme is caused.
In view of the above, the present invention provides a BIM engineering terminal heating control device, which solves the above technical problems.
Disclosure of Invention
In order to make up for the defects of the prior art, the BIM engineering terminal heating control equipment provided by the invention has the advantages that when the sensor I transmits the position change of the magnet block to the controller when the water hammer phenomenon occurs in the heating pipe, the controller does not close the terminal valve, so that the purpose of preventing the controller from closing the terminal valve by mistake when the water hammer phenomenon occurs is achieved, and the use effect of the terminal valve is ensured; meanwhile, when the leakage amount of the terminal valve is small, the second sensor is used for detecting, the controller does not close the terminal valve and informs workers of overhauling, so that a user can be ensured to normally use the heating system, and the leaked water can be prevented from affecting the normal operation of the terminal valve.
The technical scheme adopted for solving the technical problems is as follows: the invention relates to BIM engineering terminal heating control equipment, which comprises an outer shell, a first cavity, an inner shell, a valve, a motor, an auxiliary channel and a controller, wherein the first cavity is arranged on the outer shell; a first supporting block is fixedly connected to the side wall of the first cavity; a first sensor is arranged on the first supporting block; a magnet block is connected in a sliding manner in the auxiliary channel; the sensor I is used for sensing the position information of the magnet block; a second sensor and a second supporting block are arranged at the bottom of the first cavity; the bottom of the shell is provided with a through hole groove; a through hole plug is plugged in the through hole groove; the second sensor comprises a water quantity sensor and a tension sensor; the through hole plug is made of flexible materials, such as rubber;
when the terminal valve is in operation, the terminal valve can be closed when the terminal valve is leaked in the prior art, but whether the terminal valve needs to be closed cannot be judged according to the leakage amount, so that when the leakage amount of the terminal valve is relatively small, the terminal valve cannot be closed and can not inform workers to maintain, and the surrounding environment is influenced;
therefore, when the water hammer phenomenon is generated in the heating pipe in the use process, the water flow with the increased flow speed is firstly contacted with one end of the auxiliary channel, and the pressure at one end of the auxiliary channel is increased, so that the magnet block is deviated towards one end with smaller pressure under the pressure difference at two ends of the auxiliary channel; as the water flow with increased flow speed flows in the terminal valve, the water flow with increased flow speed contacts with the two ends of the auxiliary channel, and the magnet blocks stop moving at the moment; the water flow with the increased flow rate continues to flow forwards, so that one end of the auxiliary channel firstly contacted with the water flow with the increased flow rate is not contacted with the water flow with the increased flow rate, the pressure at the two ends of the auxiliary channel is opposite to that at the moment, the magnet block moves towards one end with relatively smaller pressure, the magnet block returns to the original position, and in the moving process of the magnet block, the first sensor transmits the moving information of the magnet block to the controller through the signal transmission line, and the controller judges the information, so that the controller does not control the motor to rotate to close the terminal valve; when the leakage amount of the terminal valve is smaller, the pressure difference at the two ends of the auxiliary channel is not obvious, so that the magnet block cannot be pushed by water flow in the auxiliary channel, the water flow leaked by the terminal valve enters the first cavity, the water flow sensor in the second sensor detects water flow in the cavity along with the increase of the water flow, the second sensor transmits information to the controller through the signal transmission line, the terminal valve is still opened at the moment, the controller transmits the information to a worker, the worker moves to the position of the terminal valve to overhaul the terminal valve, and the through hole plug is pulled out to remove the water flow in the first cavity during overhaul of the worker; when the leakage amount of the terminal valve is relatively large, the pressure difference between two ends of the auxiliary channel is relatively large and the pressure difference is always present, and the position of the magnet block moves in the auxiliary channel at the moment, so that the first sensor transmits information of the position deviation of the magnet to the controller, the controller controls the motor to close the terminal valve and transmit the information to staff, and the staff reaches the field to repair; after the maintenance of the staff is completed, the through hole plug is pulled out, so that water in the first cavity is discharged;
according to the invention, when the sensor I transmits the position change of the magnet block to the controller when the water hammer phenomenon occurs in the heating pipe, the controller does not close the terminal valve, so that the purpose of preventing the controller from closing the terminal valve by mistake when the water hammer phenomenon occurs is achieved, and the using effect of the terminal valve is ensured; meanwhile, when the leakage amount of the terminal valve is small, the second sensor is used for detecting, the controller does not close the terminal valve and informs workers of overhauling, so that a user can be ensured to normally use the heating system, and the leaked water can be prevented from affecting the normal operation of the terminal valve.
Preferably, the end face, far away from the second support block, of the first support block is fixedly connected with the first sensor, and a through groove is formed in the first support block; the position of the penetrating groove corresponds to the position of the first sensor, and a magnet strip is connected in a sliding manner in the penetrating groove; the end face, close to the magnet strip, of the first sensor is fixedly connected with an elastic rope, the position of the first sensor is higher than that of the valve, and the first sensor is a tension sensor; the elastic rope is positioned in the penetrating groove, and the other end of the elastic rope is fixedly connected with the magnet strip;
when the sensor works, the magnet block and the magnet strip are attracted to each other in an initial state, and at the moment, the magnet strip generates a tensile force on the elastic rope, and the magnet strip transmits the tensile force to the first sensor through the elastic rope; when the water flow in the auxiliary channel pushes the magnet blocks, the interaction force between the magnet strips and the magnet blocks disappears, so that the tension of the magnet strips on the connecting rope is reduced, the tension of the magnet strips transmitted to the first sensor through the connecting rope is also reduced, the first sensor transmits a signal of tension change to the controller, and the controller controls the motor to close the terminal valve; the position of the first sensor is higher than that of the valve, so that when the valve leaks, leaked water flow cannot contact the first sensor, and the first sensor is prevented from being damaged due to water flow erosion;
the invention is matched with the position of the first sensor higher than the position of the valve through the transmission among the magnet block, the magnet strip, the elastic rope and the first sensor, thereby preventing the first sensor from being damaged by the water flow leaked out of the terminal valve when the first sensor operates normally, ensuring the service life of the first sensor and further prolonging the service life of the invention.
Preferably, the second sensor is fixedly connected with the end face, far away from the bottom of the first cavity, of the second supporting block; the second sensor and the second supporting block are positioned at the center of the bottom surface of the first cavity; the bottom of the first cavity is fixedly connected with a connecting rope; the other end of the connecting rope penetrates through the second supporting block and is fixedly connected with the second sensor, the connecting rope is connected with the second supporting block in a sliding manner, and the length of the connecting rope is larger than the height of the second supporting block; the section shape of the second supporting block is in an inverted concave shape, and the density of the second supporting block is smaller than that of water;
when the valve is in operation, under the condition that the leakage amount of the terminal valve is smaller, water flow leaking from the valve flows on the inner shell and then flows to the bottom of the first cavity from the side surface of the inner shell, and the second supporting block and the second sensor are positioned at the center of the bottom surface of the first cavity, so that falling water flow cannot contact with the second sensor; along with the increase of the water flow in the first cavity, the second supporting block floats on the water surface in the first cavity, and the second sensor is positioned at the upper end of the second supporting block, so that the second sensor cannot contact the water surface, along with the increase of the water flow in the first cavity, the position of the second supporting block continues to rise until the connecting rope is straightened, and at the moment, the tension sensor in the second sensor receives the tension of the connecting rope, and then the second sensor transmits a tension signal to the controller;
according to the invention, when the terminal valve leaks, water flow cannot contact with the second sensor and is matched with the second sensor above the second supporting block, so that the purpose that the second sensor is not contacted with the water flow is achieved, the phenomenon that the second sensor contacts with the water flow and is corroded to be damaged is prevented, and the service life of the second sensor is ensured.
Preferably, an annular groove is sleeved outside the auxiliary channel around the magnet block; the annular groove is communicated with the auxiliary channel, and the cross section shape of the annular groove is the same as that of the magnet block; elastic ropes are fixedly connected to two side surfaces of the magnet block; the other end of the elastic rope is fixedly connected with the side wall corresponding to the auxiliary channel;
when the auxiliary channel is in operation, water flow in the auxiliary channel pushes the magnet blocks under the drive of pressure difference at two ends of the auxiliary channel, so that the elastic rope at one side of the magnet blocks is stretched, the magnet blocks move towards one side with low pressure of the auxiliary channel, and after the magnet blocks are separated from the interaction of the magnet strips, the magnet blocks are contacted with the end face of the annular groove, so that the magnet blocks cannot move continuously; the magnet block is prevented from moving too far under the action of water flow pushing force or sliding out of the auxiliary channel, so that the use effect of the invention is ensured; after the worker repairs the terminal valve, the worker opens the terminal valve through the controller, so that the pressure at two ends of the terminal valve is equal, and the elastic rope pulls the magnet block until the elastic rope is restored to the original state, and the magnet block returns to the original position; the step that the staff moves the magnet block back to the normal position is reduced, the maintenance difficulty of staff in narrow and small space has been reduced.
Preferably, the cross section of the through hole groove is the same as that of the through hole plug, and the cross section of the through hole groove is inverted trapezoid; one end of the through hole plug, which is close to the second supporting block, is fixedly connected with the connecting rope;
when the terminal valve works, water flow in the terminal valve flows into the first cavity, the buoyancy of the water flow to the second supporting block enables the second supporting block to float on the water surface, so that the second supporting block rises along with the increase of the water flow in the first cavity, when the floating position of the second supporting block is higher than the length of the connecting rope, the second connecting block pulls out the through hole plug from the through hole groove, and therefore the water flow in the first cavity flows out from the through hole groove, and at the moment, the through hole plug is suspended in the water flow under the buoyancy of the water flow and the tension of the connecting rope; when a worker repairs the terminal valve, stopping water leakage at the terminal valve, gradually descending the position of the second supporting block along with continuous drainage of water flow in the first cavity, and setting down the through hole plug by the worker after the water in the first cavity is drained after the through hole plug is plugged by the through hole plug when the height of the second supporting block is equal to the length of the connecting rope; according to the invention, when the water flow in the first cavity increases, the second supporting block can pull out the through hole plug and timely drain the water in the first cavity, so that the water flow in the first cavity submerges the second sensor and the first sensor after the terminal valve leaks for a long time, the first sensor and the second sensor are damaged, the normal use of the first sensor and the second sensor is influenced, and the use effect of the invention in practical application is further ensured;
preferably, the bottom of the first cavity is fixedly connected with a sliding rod; the number of the sliding rods is two, and the two sliding rods are positioned on two sides of the second supporting block and are in sliding connection with the second supporting block; a second cavity is formed in the through hole plug, the overall density of the through hole plug is smaller than that of water, and the through hole plug can float on the water surface;
when the device works, the second supporting block pulls out the through hole plug, the through hole plug floats on the water surface, water in the first cavity is discharged through the through hole groove, water in the first cavity is collected to the through hole groove, meanwhile, water leaked from the terminal valve continuously flows to the first cavity, and therefore fluctuation sliding rods are arranged on the two sides of the second supporting block on the water surface in the first cavity, when the second supporting block swings on the water surface, water flowing from the valve falls onto the second sensor, and the service life of the second sensor is further guaranteed; when the terminal valve is repaired by a worker, water leakage is stopped at the terminal valve, so that residual water in the first cavity is continuously discharged, when water in the first cavity passes through the through hole groove, the water flow velocity close to the wall of the through hole groove is relatively slow, the water flow velocity at the center position of the through hole groove is relatively fast, negative pressure is formed in the middle of the water flow, and then the surrounding water flows to the negative pressure area to form vortex, at the moment, the through hole plug is attracted by the vortex, the position of the through hole plug is always perpendicular to the through hole groove in the water discharging process of the first cavity, the position deviation of the through hole plug is prevented, the through hole groove is plugged when the water in the first cavity is completely discharged, the purpose that the worker manually discharges the water in the first cavity is reduced, and the maintenance difficulty of the worker in a narrow space is reduced again.
The beneficial effects of the invention are as follows:
1. according to the invention, when the sensor I transmits the position change of the magnet block to the controller when the water hammer phenomenon occurs in the heating pipe, the controller does not close the terminal valve, so that the purpose of preventing the controller from closing the terminal valve by mistake when the water hammer phenomenon occurs is achieved, and the using effect of the terminal valve is ensured; meanwhile, when the leakage amount of the terminal valve is small, the second sensor is used for detecting, the controller does not close the terminal valve and informs workers of overhauling, so that a user can be ensured to normally use the heating system, and the leaked water can be prevented from affecting the normal operation of the terminal valve.
2. The invention is matched with the position of the first sensor higher than the position of the valve through the transmission among the magnet block, the magnet strip, the elastic rope and the first sensor, thereby preventing the first sensor from being damaged by the water flow leaked out of the terminal valve when the first sensor operates normally, ensuring the service life of the first sensor and further prolonging the service life of the invention.
3. According to the invention, when the terminal valve leaks, water flow cannot contact with the second sensor and is matched with the second sensor above the second supporting block, so that the purpose that the second sensor is not contacted with the water flow is achieved, the phenomenon that the second sensor contacts with the water flow and is corroded to be damaged is prevented, and the service life of the second sensor is ensured.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a partial cross-sectional view of the present invention;
FIG. 3 is an enlarged view at A in FIG. 2;
fig. 4 is an enlarged view at B in fig. 2;
FIG. 5 is a cross-sectional view at C-C in FIG. 2;
in the figure: 1. a housing; 11. a through hole groove; 12. a through hole plug; 2. a first cavity; 21. a slide bar; 3. an inner case; 4. a valve; 5. a motor; 6. an auxiliary channel; 61. a magnet block; 62. an annular groove; 7. a first supporting block; 71. a sensor number one; 72. a magnet bar; 73. an elastic rope; 74. a through groove; 8. a second supporting block; 81. a second sensor; 82. a connecting rope; 9. and a second cavity.
Detailed Description
The invention is further described in connection with the following detailed description in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
As shown in fig. 1 to 5, the invention relates to a BIM engineering terminal heating control device, which comprises an outer shell 1, a first cavity 2, an inner shell 3, a valve 4, a motor 5, an auxiliary channel 6 and a controller; a first supporting block 7 is fixedly connected to the side wall of the first cavity 2; a first sensor 71 is arranged on the first supporting block 7; a magnet block 61 is slidably connected to the auxiliary channel 6; the sensor 71 is used for sensing the position information of the magnet block 61; a second sensor 81 and a second supporting block 8 are arranged at the bottom of the first cavity 2; the bottom of the shell 1 is provided with a through hole groove 11; a through hole plug 12 is plugged in the through hole groove 11; the second sensor 81 comprises a water volume sensor and a tension sensor; the material of the through hole plug 12 is flexible, such as rubber;
when the terminal valve is in operation, the terminal valve can be closed when the terminal valve is leaked in the prior art, but whether the terminal valve needs to be closed cannot be judged according to the leakage amount, so that when the leakage amount of the terminal valve is relatively small, the terminal valve cannot be closed and can not inform workers to maintain, and the surrounding environment is influenced;
therefore, when the water hammer phenomenon is generated in the heating pipe during the use process, the water flow with the increased flow speed is firstly contacted with one end of the auxiliary channel 6, the pressure of one end of the auxiliary channel 6 is increased, and the magnet block 61 is deviated towards one end with smaller pressure under the pressure difference of the two ends of the auxiliary channel 6; as the water flow with the increased flow rate flows in the terminal valve, the water flow with the increased flow rate comes into contact with both ends of the auxiliary passage 6, at which time the magnet pieces 61 stop moving; the water flow with increased flow rate continues to flow forwards, so that the end, which is firstly contacted with the water flow with increased flow rate, of the auxiliary channel 6 is not contacted with the water flow with increased flow rate, the pressure at the two ends of the auxiliary channel 6 is opposite to that of the prior art, the magnet block 61 moves towards the end with relatively smaller pressure, the magnet block 61 returns to the original position, and in the moving process of the magnet block 61, the sensor 71 transmits the moving information of the magnet block 61 to the controller through the signal transmission line, so that the controller judges the information, and the controller does not control the motor 5 to rotate to close the terminal valve; when the leakage amount of the terminal valve is smaller, the pressure difference at the two ends of the auxiliary channel 6 is not obvious, so that the magnet block 61 cannot be pushed by the water flow in the auxiliary channel 6, the water flow leaked by the terminal valve enters the first cavity 2, the water flow in the cavity is detected by the water flow sensor in the second sensor 81 along with the increase of the water flow, the second sensor 81 transmits information to the controller through the signal transmission line, the terminal valve is still opened at the moment, the controller transmits the information to a worker, the worker moves to the position of the terminal valve, the terminal valve is overhauled, and the through hole plug 12 is pulled out to exclude the water flow in the first cavity 2 when the worker overhauls; when the leakage amount of the terminal valve is relatively large, the pressure difference between the two ends of the auxiliary channel 6 is relatively large and the pressure difference is always present, and the position of the magnet block 61 moves in the auxiliary channel 6 at the moment, so that the first sensor 71 transmits information of the position deviation of the magnet to the controller, the controller controls the motor 5 to close the terminal valve and transmit the information to the staff, and the staff reaches the site to repair; after the maintenance of the staff is completed, the through hole plug 12 is pulled out, so that the water in the first cavity 2 is discharged;
the invention transmits the position change of the magnet block 61 to the controller when the water hammer phenomenon occurs in the heating pipe through the sensor 71, the controller does not close the terminal valve, the purpose of preventing the controller from closing the terminal valve by mistake when the water hammer phenomenon occurs is achieved, and the use effect of the terminal valve is ensured; meanwhile, when the leakage amount of the terminal valve is small, the second sensor 81 is used for detecting, the controller does not close the terminal valve and informs workers of overhauling, so that a user can be ensured to normally use the heating system, and leaked water can be prevented from affecting the normal work of the terminal valve.
As an embodiment of the present invention, the end surface of the first supporting block 7 far from the second supporting block 8 is fixedly connected with the first sensor 71, and the first supporting block 7 is provided with a through groove 74; the position of the through slot 74 corresponds to the position of the first sensor 71, and the through slot 74 is slidably connected with the magnet strip 72; an elastic rope 73 is fixedly connected to the end face, close to the magnet strip 72, of the first sensor 71, the position of the first sensor 71 is higher than that of the valve 4, and the first sensor 71 is a tension sensor; the elastic rope 73 is positioned in the through groove 74, and the other end of the elastic rope 73 is fixedly connected with the magnet strip 72;
when the magnetic sensor works, the magnet block 61 and the magnet strip 72 are attracted to each other in an initial state, at the moment, the magnet strip 72 generates a tensile force on the elastic rope 73, and the magnet strip 72 transmits the tensile force to the first sensor 71 through the elastic rope 73; when the water flow in the auxiliary channel 6 pushes the magnet block 61, the interaction force between the magnet strip 72 and the magnet block 61 disappears, so that the tension of the magnet strip 72 on the connecting rope 82 is reduced, the tension of the magnet strip 72 transmitted to the first sensor 71 through the connecting rope 82 is also reduced, the first sensor 71 transmits a tension change signal to the controller, and the controller controls the motor 5 to close the terminal valve; the position of the sensor 71 is higher than that of the valve 4, so that when the valve 4 leaks, the leaked water flow cannot contact the sensor 71, and the sensor 71 is prevented from being damaged due to water flow erosion;
the invention is matched with the position of the first sensor 71 higher than the position of the valve 4 through the transmission among the magnet block 61, the magnet strip 72, the elastic rope 73 and the first sensor 71, thereby preventing the first sensor 71 from being damaged due to the erosion of water flow leaked from the terminal valve while the first sensor 71 operates normally, ensuring the service life of the first sensor 71 and further prolonging the service life of the invention.
As an embodiment of the present invention, the second sensor 81 is fixedly connected to the end surface of the second supporting block 8 away from the bottom of the first cavity 2; the second sensor 81 and the second supporting block 8 are positioned at the center of the bottom surface of the first cavity 2; the bottom of the first cavity 2 is fixedly connected with a connecting rope 82; the other end of the connecting rope 82 penetrates through the second supporting block 8 to be fixedly connected with the second sensor 81, the connecting rope 82 is in sliding connection with the second supporting block 8, and the length of the connecting rope 82 is larger than the height of the second supporting block 8; the section of the second supporting block 8 is in an inverted concave shape, and the density of the second supporting block 8 is smaller than that of water;
when the valve is in operation, under the condition that the leakage amount of the terminal valve is small, water flow leaked from the valve 4 flows on the inner shell 3 and then flows to the bottom of the first cavity 2 from the side surface of the inner shell 3, and the second supporting block 8 and the second sensor 81 are positioned at the center of the bottom surface of the first cavity 2, so that falling water flow cannot contact with the second sensor 81; along with the increase of the water flow in the first cavity 2, the second supporting block 8 sheets float on the water surface in the first cavity 2, and the second sensor 81 is positioned at the upper end of the second supporting block 8, so that the second sensor 81 cannot contact the water surface, along with the increase of the water flow in the first cavity 2, the position of the second supporting block 8 continues to rise until the connecting rope 82 is straightened, at the moment, the tension sensor in the second sensor 81 is under the tension of the connecting rope 82, and the second sensor 81 transmits a tension signal to the controller;
according to the invention, when the terminal valve leaks, water flow cannot contact with the second sensor 81 and is matched with the second sensor 81 positioned above the second supporting block 8, so that the purpose that the second sensor 81 is not contacted with the water flow is achieved, the phenomenon that the second sensor 81 is contacted with the water flow and is corroded to be damaged is prevented, and the service life of the second sensor 81 is ensured.
As an embodiment of the present invention, an annular groove 62 is sleeved outside the auxiliary channel 6 around the magnet block 61; the annular groove 62 is communicated with the auxiliary channel 6, and the cross section shape of the annular groove 62 is the same as that of the magnet block 61; elastic ropes 73 are fixedly connected to two side surfaces of the magnet block 61; the other end of the elastic rope 73 is fixedly connected with the corresponding side wall of the auxiliary channel 6;
when the auxiliary channel 6 works, the water flow in the auxiliary channel 6 pushes the magnet block 61 under the drive of the pressure difference at the two ends of the auxiliary channel 6, so that the magnet block 61 stretches the elastic rope 73 at one side and moves towards the side with low pressure of the auxiliary channel 6, after the magnet block 61 is separated from the interaction of the magnet strip 72, the magnet block 61 is in contact with the end face of the annular groove 62, and the magnet block 61 cannot move continuously; the magnet 61 is prevented from moving too far under the action of the water flow pushing force or sliding out of the auxiliary channel 6, so that the use effect of the invention is ensured; after the worker repairs the terminal valve, the worker opens the terminal valve through the controller, so that the pressure at two ends of the terminal valve is equal, and the elastic rope 73 pulls the magnet block 61 until the elastic rope 73 is restored to the original state, and the magnet block 61 returns to the original position; the step of moving the magnet block 61 back to the original position by the staff is reduced, and the maintenance difficulty of the staff in a narrow space is reduced.
As an embodiment of the present invention, the cross-sectional shape of the through hole groove 11 is the same as the cross-sectional shape of the through hole plug 12, and the cross-sectional shape of the through hole groove 11 is an inverted trapezoid; one end of the through hole plug 12, which is close to the second supporting block 8, is fixedly connected with the connecting rope 82;
when the terminal valve works, water flow in the terminal valve flows into the first cavity 2, the buoyancy of the water flow to the second supporting block 8 enables the second supporting block 8 to float on the water surface, so that the second supporting block 8 rises along with the increase of the water flow in the first cavity 2, when the floating position of the second supporting block 8 is higher than the length of the connecting rope 82, the second connecting block pulls out the through hole plug 12 from the through hole groove 11, so that the water flow in the first cavity 2 flows out from the through hole groove 11, and at the moment, the through hole plug 12 is suspended in the water flow under the buoyancy of the water flow and the tension of the connecting rope 82; when a worker repairs the terminal valve, water leakage is stopped at the terminal valve, along with continuous drainage of water flow in the first cavity 2, the position of the second supporting block 8 gradually descends, the position of the through hole plug 12 also descends, when the height of the second supporting block 8 is equal to the length of the connecting rope 82, the through hole plug 12 plugs the through hole groove 11, and at the moment, the worker jacks up the through hole plug 12, so that residual water in the first cavity 2 is continuously drained, and after all water in the first cavity 2 is drained, the worker puts down the through hole plug 12; according to the invention, when the water flow in the first cavity 2 increases, the second supporting block 8 can pull out the through hole plug 12 and timely drain the water in the first cavity 2, so that the water flow in the first cavity 2 submerges the second sensor 81 and the first sensor 71 after the terminal valve leaks for a long time, the first sensor 71 and the second sensor 81 are damaged, the normal use of the first sensor 71 and the second sensor 81 is influenced, and the use effect of the invention in practical application is further ensured.
As an embodiment of the present invention, the bottom of the first cavity 2 is fixedly connected with a sliding rod 21; the number of the sliding rods 21 is two, and the two sliding rods 21 are positioned on two sides of the second supporting block 8 and are in sliding connection with the second supporting block 8; a second cavity 9 is arranged in the through hole plug 12, the density of the whole through hole plug 12 is smaller than that of water, and the through hole plug 12 can float on the water surface;
during operation, the through hole plug 12 is pulled out by the second supporting block 8, at the moment, the through hole plug 12 floats on the water surface, water in the first cavity 2 is discharged through the through hole groove 11, water in the first cavity 2 is collected to the through hole groove 11, meanwhile, water leaked from the terminal valve continuously flows to the first cavity 2, so that fluctuation sliding rods 21 are arranged on the water surface in the first cavity 2 and positioned on two sides of the second supporting block 8, and when the second supporting block 8 floats on the water surface, water flowing from the valve 4 falls onto the second sensor 81, and the service life of the second sensor 81 is further ensured; when the terminal valve is repaired by a worker, water leakage is stopped at the terminal valve, so that residual water in the first cavity 2 is continuously discharged, when water in the first cavity 2 passes through the through hole groove 11, the water flow velocity close to the groove wall of the through hole groove 11 is relatively low, the water flow velocity at the central position of the through hole groove 11 is relatively high, negative pressure is formed in the middle of water flow, and then surrounding water flows to the negative pressure area to form vortex, at the moment, the through hole plug 12 is attracted by the vortex, the position of the through hole plug 12 is always perpendicular to the through hole groove 11 in the water flow discharging process in the first cavity 2, the position of the through hole plug 12 is prevented from deviating, the through hole groove 11 is plugged when the water in the first cavity 2 is completely discharged, the purpose that the water in the first cavity 2 is manually discharged by the worker is reduced, and the maintenance difficulty of the worker in a narrow space is reduced again.
The specific working procedure is as follows:
therefore, when the water hammer phenomenon is generated in the heating pipe during the use process, the water flow with the increased flow speed is firstly contacted with one end of the auxiliary channel 6, the pressure of one end of the auxiliary channel 6 is increased, and the magnet block 61 is deviated towards one end with smaller pressure under the pressure difference of the two ends of the auxiliary channel 6; as the water flow with the increased flow rate flows in the terminal valve, the water flow with the increased flow rate comes into contact with both ends of the auxiliary passage 6, at which time the magnet pieces 61 stop moving; the water flow with increased flow rate continues to flow forwards, so that the end, which is firstly contacted with the water flow with increased flow rate, of the auxiliary channel 6 is not contacted with the water flow with increased flow rate, the pressure at the two ends of the auxiliary channel 6 is opposite to that of the prior art, the magnet block 61 moves towards the end with relatively smaller pressure, the magnet block 61 returns to the original position, and in the moving process of the magnet block 61, the sensor 71 transmits the moving information of the magnet block 61 to the controller through the signal transmission line, so that the controller judges the information, and the controller does not control the motor 5 to rotate to close the terminal valve; when the leakage amount of the terminal valve is smaller, the pressure difference at the two ends of the auxiliary channel 6 is not obvious, so that the magnet block 61 cannot be pushed by the water flow in the auxiliary channel 6, the water flow leaked by the terminal valve enters the first cavity 2, the water flow in the cavity is detected by the water flow sensor in the second sensor 81 along with the increase of the water flow, the second sensor 81 transmits information to the controller through the signal transmission line, the terminal valve is still opened at the moment, the controller transmits the information to a worker, the worker moves to the position of the terminal valve, the terminal valve is overhauled, and the through hole plug 12 is pulled out to exclude the water flow in the first cavity 2 when the worker overhauls; when the leakage amount of the terminal valve is relatively large, the pressure difference between the two ends of the auxiliary channel 6 is relatively large and the pressure difference is always present, and the position of the magnet block 61 moves in the auxiliary channel 6 at the moment, so that the first sensor 71 transmits information of the position deviation of the magnet to the controller, the controller controls the motor 5 to close the terminal valve and transmit the information to the staff, and the staff reaches the site to repair; after the maintenance of the staff is completed, the through hole plug 12 is pulled out, so that the water in the first cavity 2 is discharged; the magnet block 61 and the magnet bar 72 attract each other in an initial state, and at this time, the magnet bar 72 generates a tensile force on the elastic rope 73, and the magnet bar 72 transmits the tensile force to the sensor 71 through the elastic rope 73; when the water flow in the auxiliary channel 6 pushes the magnet block 61, the interaction force between the magnet strip 72 and the magnet block 61 disappears, so that the tension of the magnet strip 72 on the connecting rope 82 is reduced, the tension of the magnet strip 72 transmitted to the first sensor 71 through the connecting rope 82 is also reduced, the first sensor 71 transmits a tension change signal to the controller, and the controller controls the motor 5 to close the terminal valve; the position of the sensor 71 is higher than that of the valve 4, so that when the valve 4 leaks, the leaked water flow cannot contact the sensor 71, and the sensor 71 is prevented from being damaged due to water flow erosion; under the condition that the leakage amount of the terminal valve is small, water flow leaked from the valve 4 flows on the inner shell 3 and then flows to the bottom of the first cavity 2 from the side surface of the inner shell 3, and the second supporting block 8 and the second sensor 81 are positioned at the center of the bottom surface of the first cavity 2, so that falling water flow cannot contact with the second sensor 81; along with the increase of the water flow in the first cavity 2, the second supporting block 8 sheets float on the water surface in the first cavity 2, and the second sensor 81 is positioned at the upper end of the second supporting block 8, so that the second sensor 81 cannot contact the water surface, along with the increase of the water flow in the first cavity 2, the position of the second supporting block 8 continues to rise until the connecting rope 82 is straightened, at the moment, the tension sensor in the second sensor 81 is under the tension of the connecting rope 82, and the second sensor 81 transmits a tension signal to the controller; the water flow in the auxiliary channel 6 pushes the magnet block 61 under the drive of the pressure difference at the two ends of the auxiliary channel 6, so that the magnet block 61 stretches the elastic rope 73 at one side and moves towards the side with low pressure of the auxiliary channel 6, and after the magnet block 61 is separated from the interaction of the magnet strip 72, the magnet block 61 is contacted with the end surface of the annular groove 62, and the magnet block 61 cannot move continuously; the magnet 61 is prevented from moving too far under the action of the water flow pushing force or sliding out of the auxiliary channel 6, so that the use effect of the invention is ensured; after the worker repairs the terminal valve, the worker opens the terminal valve through the controller, so that the pressure at two ends of the terminal valve is equal, and the elastic rope 73 pulls the magnet block 61 until the elastic rope 73 is restored to the original state, and the magnet block 61 returns to the original position; the step of moving the magnet block 61 back to the original position by a worker is reduced, and the maintenance difficulty of the worker in a narrow space is reduced; the water flow in the terminal valve flows into the first cavity 2, the buoyancy of the water flow to the second supporting block 8 enables the second supporting block 8 to float on the water surface, so that the second supporting block 8 rises along with the increase of the water flow in the first cavity 2, when the floating position of the second supporting block 8 is higher than the length of the connecting rope 82, the second connecting block pulls out the through hole plug 12 from the through hole groove 11, the water flow in the first cavity 2 flows out from the through hole groove 11, and at the moment, the through hole plug 12 is suspended in the water flow under the buoyancy of the water flow and the tension of the connecting rope 82; when a worker repairs the terminal valve, water leakage is stopped at the terminal valve, along with continuous drainage of water flow in the first cavity 2, the position of the second supporting block 8 gradually descends, the position of the through hole plug 12 also descends, when the height of the second supporting block 8 is equal to the length of the connecting rope 82, the through hole plug 12 plugs the through hole groove 11, and at the moment, the worker jacks up the through hole plug 12, so that residual water in the first cavity 2 is continuously drained, and after all water in the first cavity 2 is drained, the worker puts down the through hole plug 12; according to the invention, when the water flow in the first cavity 2 is increased, the second supporting block 8 can pull out the through hole plug 12 and timely drain the water in the first cavity 2, so that the water flow in the first cavity 2 submerges the second sensor 81 and the first sensor 71 after the terminal valve leaks for a long time, the first sensor 71 and the second sensor 81 are damaged, the normal use of the first sensor 71 and the second sensor 81 is influenced, and the use effect of the invention in practical application is further ensured; the through hole plugs 12 are pulled out by the second supporting blocks 8, the through hole plugs 12 float on the water surface, water in the first cavity 2 is discharged through the through hole grooves 11, water in the first cavity 2 is collected to the through hole grooves 11, meanwhile, water leaked from the terminal valve continuously flows to the first cavity 2, and therefore fluctuation sliding rods 21 are arranged on the two sides of the second supporting blocks 8 on the water surface in the first cavity 2, when the second supporting blocks 8 float on the water surface, water flowing from the valve 4 falls onto the second sensor 81, and the service life of the second sensor 81 is further guaranteed; when the terminal valve is repaired by a worker, water leakage is stopped at the terminal valve, so that residual water in the first cavity 2 is continuously discharged, when water in the first cavity 2 passes through the through hole groove 11, the water flow velocity close to the groove wall of the through hole groove 11 is relatively low, the water flow velocity at the central position of the through hole groove 11 is relatively high, negative pressure is formed in the middle of water flow, and then surrounding water flows to the negative pressure area to form vortex, at the moment, the through hole plug 12 is attracted by the vortex, the position of the through hole plug 12 is always perpendicular to the through hole groove 11 in the water flow discharging process in the first cavity 2, the position of the through hole plug 12 is prevented from deviating, the through hole groove 11 is plugged when the water in the first cavity 2 is completely discharged, the purpose that the water in the first cavity 2 is manually discharged by the worker is reduced, and the maintenance difficulty of the worker in a narrow space is reduced again.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (4)
1. A BIM engineering terminal heating control device comprises an outer shell (1), a first cavity (2), an inner shell (3), a valve (4), a motor (5), an auxiliary channel (6) and a controller; a first supporting block (7) is fixedly connected to the side wall of the first cavity (2); a first sensor (71) is arranged on the first supporting block (7); a magnet block (61) is connected in a sliding manner in the auxiliary channel (6); the first sensor (71) is used for sensing the position information of the magnet block (61); the method is characterized in that: a second sensor (81) and a second supporting block (8) are arranged at the bottom of the first cavity (2); the bottom of the shell (1) is provided with a through hole groove (11); a through hole plug (12) is plugged in the through hole groove (11); the second sensor (81) comprises a water quantity sensor and a tension sensor; the material of the through hole plug (12) is flexible;
the end face, far away from the second sensor (81), of the first supporting block (7) is fixedly connected with the first sensor (71), and a through groove (74) is formed in the first supporting block (7); the position of the through groove (74) corresponds to the position of the first sensor (71), and the through groove (74) is slidably connected with the magnet strip (72); an elastic rope (73) is fixedly connected to the end face, close to the magnet strip (72), of the first sensor (71), the position of the first sensor (71) is higher than that of the valve (4), and the first sensor (71) is a tension sensor; the elastic rope (73) is positioned in the through groove (74), and the other end of the elastic rope (73) is fixedly connected with the magnet strip (72);
the second sensor (81) is fixedly connected with the end face, far away from the bottom of the first cavity (2), of the second supporting block (8); the second sensor (81) and the second supporting block (8) are positioned at the center of the bottom surface of the first cavity (2); the bottom of the first cavity (2) is fixedly connected with a connecting rope (82); the other end of the connecting rope (82) penetrates through the second supporting block (8) to be fixedly connected with the second sensor (81), the connecting rope (82) is connected with the second supporting block (8) in a sliding mode, and the length of the connecting rope (82) is larger than the height of the second supporting block (8); the section shape of the second supporting block (8) is in an inverted concave shape, and the density of the second supporting block (8) is smaller than that of water.
2. The BIM engineering terminal heating control device according to claim 1, wherein: an annular groove (62) is sleeved outside the auxiliary channel (6) around the magnet block (61); the annular groove (62) is communicated with the auxiliary channel (6), and the cross section shape of the annular groove (62) is the same as that of the magnet block (61); elastic ropes (73) are fixedly connected to two side surfaces of the magnet block (61); the other end of the elastic rope (73) is fixedly connected with the corresponding side wall of the auxiliary channel (6).
3. The BIM engineering terminal heating control device of claim 2, wherein: the cross section of the through hole groove (11) is the same as that of the through hole plug (12), and the cross section of the through hole groove (11) is inverted trapezoid; one end of the through hole plug (12) close to the second supporting block (8) is fixedly connected with the connecting rope (82).
4. A BIM engineering terminal heating control device according to claim 3, wherein: the bottom of the first cavity (2) is fixedly connected with a sliding rod (21); the number of the sliding rods (21) is two, and the two sliding rods (21) are positioned on two sides of the second supporting block (8) and are in sliding connection with the second supporting block (8); the through hole plug (12) is internally provided with a second cavity (9), the overall density of the through hole plug (12) is smaller than that of water, and the through hole plug (12) can float on the water surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110932512.1A CN113669500B (en) | 2021-08-13 | 2021-08-13 | BIM engineering terminal heating control equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110932512.1A CN113669500B (en) | 2021-08-13 | 2021-08-13 | BIM engineering terminal heating control equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113669500A CN113669500A (en) | 2021-11-19 |
| CN113669500B true CN113669500B (en) | 2023-07-21 |
Family
ID=78542806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110932512.1A Active CN113669500B (en) | 2021-08-13 | 2021-08-13 | BIM engineering terminal heating control equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113669500B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116504579B (en) * | 2023-06-29 | 2023-09-01 | 常州天利智能控制股份有限公司 | Pressure switch joint assembly and pressure switch |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB821903A (en) * | 1956-08-06 | 1959-10-14 | Hays Mfg Co | Improvements in or relating to pilot operated fluid flow control valves |
| CN101629645A (en) * | 2008-07-18 | 2010-01-20 | 叶萍 | Leakage disconnecting valve |
| JP2015113936A (en) * | 2013-12-12 | 2015-06-22 | 日本ピラー工業株式会社 | Valve and bellows pump using the same |
| CN204477703U (en) * | 2015-02-09 | 2015-07-15 | 中煤科工集团武汉设计研究院有限公司 | A kind of pipeline valve bidirection press protective gear |
| CN208169630U (en) * | 2018-04-04 | 2018-11-30 | 泉州市东曼厨卫科技有限公司 | A kind of leakage of water-heating automatic protection valve |
| CN111022690A (en) * | 2019-12-03 | 2020-04-17 | 中铁五局集团第一工程有限责任公司 | BIM engineering terminal warm accuse valve |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7392817B2 (en) * | 2006-10-12 | 2008-07-01 | Castlebridge Enterprises, Inc. | Water conservation safety shut-off valve |
| US11430322B2 (en) * | 2015-12-16 | 2022-08-30 | Pillar Technologies, Inc. | Systems and methods for building water-leak detection and alert |
-
2021
- 2021-08-13 CN CN202110932512.1A patent/CN113669500B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB821903A (en) * | 1956-08-06 | 1959-10-14 | Hays Mfg Co | Improvements in or relating to pilot operated fluid flow control valves |
| CN101629645A (en) * | 2008-07-18 | 2010-01-20 | 叶萍 | Leakage disconnecting valve |
| JP2015113936A (en) * | 2013-12-12 | 2015-06-22 | 日本ピラー工業株式会社 | Valve and bellows pump using the same |
| CN204477703U (en) * | 2015-02-09 | 2015-07-15 | 中煤科工集团武汉设计研究院有限公司 | A kind of pipeline valve bidirection press protective gear |
| CN208169630U (en) * | 2018-04-04 | 2018-11-30 | 泉州市东曼厨卫科技有限公司 | A kind of leakage of water-heating automatic protection valve |
| CN111022690A (en) * | 2019-12-03 | 2020-04-17 | 中铁五局集团第一工程有限责任公司 | BIM engineering terminal warm accuse valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113669500A (en) | 2021-11-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113669500B (en) | BIM engineering terminal heating control equipment | |
| CN105951684B (en) | A kind of antifreeze deicer of spillway gate | |
| WO2020228620A1 (en) | Flushing and overhauling system, flushing method and overhauling method for drainage pipeline | |
| CN205776099U (en) | A kind of novel antifreeze deicer of spillway gate | |
| CN115540969A (en) | Intelligent water meter capable of preventing silt blockage | |
| KR101919334B1 (en) | Emergency shut-off system for air valve chamber | |
| CN202133292U (en) | Water level control device for use on water seal mechanism of circular cooler | |
| CN210315659U (en) | Prefabricated utility tunnel | |
| CN116593094A (en) | Pipeline butt joint detection device for water conservancy construction | |
| CN208831862U (en) | A kind of ball-cock assembly that Mine Switch automatically controls | |
| CN209876060U (en) | Automatic bleeding valve | |
| CN206479287U (en) | Braking device of speed reducer performing leak test system | |
| CN214224264U (en) | Sluice detection device for hydraulic engineering | |
| CN114017096A (en) | Self-closing negative pressure automatic water drainage device for slag and water discharge outlet | |
| CN211315307U (en) | Automatic valve diagnosis device | |
| CN205787178U (en) | A kind of icing detector | |
| CN214474642U (en) | Liquid level detection device for liquid pool | |
| CN115679911B (en) | Gate moisturizing device | |
| CN220582247U (en) | Pipeline leakage monitoring equipment | |
| CN107975128B (en) | Passive controller in vacuum drainage system | |
| CN210071311U (en) | Maintenance testing device for mining negative pressure automatic water drainage device | |
| LU504364B1 (en) | A withstand voltage magnetic float for self inspection of high-voltage environmental damage | |
| CN219825511U (en) | Underground construction drainage equipment | |
| KR102608664B1 (en) | Control valve integrated with leakage detecting means | |
| CN219082409U (en) | Improved nuclear power isolation valve structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |