Heat supply pipeline pressure test device

Abstract

The present invention discloses a pressure testing device for heating pipelines, specifically related to the technical field of pipeline pressure testing, including a pressure testing ring, two transverse rubber rings, a heating pipeline, a first pressure sensor, and a transverse and longitudinal interval pressure testing mechanism; wherein the transverse and longitudinal interval pressure testing mechanism includes a support frame, a bidirectional screw rod, and a reduction motor, and also includes a pressure testing area positioning mechanism and a displacement pressure testing detection component. Through the transverse and longitudinal interval pressure testing mechanism, the present invention has the advantages of forming a left cavity area inside the pressure testing ring and a right cavity area inside the pressure testing ring, being able to accurately know the specific area of the pressure testing failure leakage of the heating pipeline, and greatly improving the pressure testing accuracy of the heating pipeline, thereby solving the problems that it is difficult to accurately know the specific leakage positions in the specified transverse area and the longitudinal interval area of the heating pipeline, and it is difficult to accurately know the problem area of the pressure testing failure leakage, which results in poor pressure testing accuracy of the heating pipeline.

Description

Technical Field

[0001] The present invention relates to the technical field of pipeline pressure testing, and more specifically, to a heat supply pipeline pressure testing device. Background Art

[0002] The heat supply pipeline pressure testing device can detect the sealing performance and pressure-bearing capacity of the pipeline by applying a certain pressure to the pipeline. This is crucial for the safe operation of the heating system. Because if there are leaks in the pipeline or it cannot withstand the working pressure, it will lead to poor heating effect and even cause safety accidents. Through the pressure testing device, these problems can be discovered and solved in time to ensure the normal operation of the heating system.

[0003] In the existing published literature, the patent with the Chinese patent publication number CN116577023A discloses a pipeline pressure testing device. This pressure testing technology places the pipeline to be tested on the placement rack, then starts the locking motor. The locking motor drives the lead screw to rotate, and the lead screw drives the moving block, so that the moving block moves horizontally under the guiding action of the guide rod, thereby driving the support plate to move horizontally. At this time, the end cover on the support plate will push the pipeline until the flanges at both ends of the pipeline are respectively embedded into the interiors of the two groups of end covers and are tightly fixed with the end covers, then the assembly of the pipeline can be completed. Then start the pressure test pump to conduct the pressure test on the pipeline. In this way, the assembly operation of the pipeline is very simple and more convenient to use, solving the problem that the assembly of the pipeline requires the use of multiple groups of bolts for connection and fixation, which is very cumbersome to operate and not convenient enough. However, this technology has the following defects.

[0004] When conducting a pressure test on a heat supply pipeline, fluid pressure is mainly applied to the heat supply pipeline to check whether the pressure can be stabilized within the specified range to determine whether there are leaks in the heat supply pipeline. However, the heat supply pipeline is relatively long, and it is difficult to accurately know the specific leakage positions in the specified horizontal area and the longitudinal interval area of the heat supply pipeline. Maintenance personnel also need to spend a lot of time observing and finding the specific leakage positions during the pressure test, and it is difficult to accurately know the area of the pressure application failure and leakage problem, which results in poor accuracy of the heat supply pipeline pressure test. Therefore, a heat supply pipeline pressure testing device is needed. Summary of the Invention

[0005] To overcome the above-mentioned defects of the prior art, the present invention provides the following technical solutions: a heat supply pipeline pressure test device, including a pressure test ring, wherein two transverse rubber rings are fixedly connected to the inner wall of the pressure test ring, and a heat supply pipeline is slidably connected to the inner wall of the transverse rubber rings. A first pressure sensor is fixedly connected to the inner wall of the heat supply pipeline and away from the position of the transverse rubber rings. A transverse and longitudinal spaced pressure test mechanism is provided on one side of the outer wall of the pressure test ring; the transverse and longitudinal spaced pressure test mechanism includes a support frame fixedly arranged on one side of the outer wall of the pressure test ring, and a bidirectional screw is rotatably connected inside the support frame. A reduction motor is fixedly installed at the top of the support frame, and the reduction motor is used to drive the bidirectional screw to rotate. Two threaded sleeve bars are threadedly connected to the outer wall of the bidirectional screw, and both of the two threaded sleeve bars are slidably connected to the support frame. The threads on the outer wall of the bidirectional screw are opposite and symmetrically arranged.

[0006] Both of the two threaded sleeve bars are slidably connected to the support frame. One end of each threaded sleeve bar is fixedly connected with a pressing plate. A pressing block is fixedly installed at the bottom end of the inner wall of the pressing plate. An extrusion strip is fixedly connected to the top end of the pressing block. A rubber outer sleeve is adhered to the outer wall of the extrusion strip, and the rubber outer sleeve is slidably connected to the pressure test ring. A longitudinal sealing strip is fixedly connected to the top end of the extrusion strip; arc-shaped pressing plates are fixedly connected to both top ends of the pressing plate, and the arc-shaped pressing plates are fixedly connected to the transverse rubber rings; lower discharge pipes are provided on both sides of the pressing plate. A pressure test area positioning mechanism is provided at the bottom end of the lower discharge pipe, and a displacement pressure test detection component is provided on the lower surface of the pressing plate.

[0007] Preferably, the output end of the reduction motor is fixedly connected to the bidirectional screw, and the longitudinal sealing strip is slidably connected to the heat supply pipeline. A torque force sensor is installed at the bottom end of the bidirectional screw, and the sensing end of the torque force sensor is fixedly connected to the bidirectional screw. A support block is fixedly installed on one side of the outer wall of the torque force sensor, and the support block is fixedly connected to the support frame. A battery is fixedly installed on one side of the support frame. A holding rod is provided below the battery, and the holding rod is fixedly connected to the support frame; a controller is fixedly installed on the outer wall of the holding rod. Limiting rings are provided on both sides of the controller, and both of the two limiting rings are fixedly connected to the holding rod. A test valve is fixedly communicated with the bottom end of the outer wall of the heat supply pipeline and near the first pressure sensor. A booster pump is fixedly communicated with the bottom end of the test valve. A butt joint threaded pipe is fixedly communicated with the input end of the booster pump. Locking valves are threadedly communicated with both ends of the heat supply pipeline, and the two locking valves are symmetrically arranged with respect to the heat supply pipeline.

[0008] When this technology is in use, select a leakage pressure test area on a heating pipeline. Then, by starting the reduction motor, the bidirectional screw drives two threaded sleeve bars to approach each other under the action of the threaded driving force. In this way, one threaded sleeve bar moves upward and the other threaded sleeve bar moves downward. The pressing plate drives two arc-shaped pressing plates to move upward, and the two transverse rubber rings can perform the sealing pressure test operation on the transverse interval area. The pressing block drives the extrusion bar to move upward, and the extrusion bar drives the rubber outer sleeve to move upward, so that the rubber outer sleeve can be extruded and sealed with the pressure test ring. The longitudinal sealing strip is extruded at the bottom position of the outer wall of the heating pipeline, and the upper longitudinal sealing strip is extruded and sealed at the top position of the outer wall of the heating pipeline. In this way, the two longitudinal sealing strips can perform the interval sealing operation on the longitudinal area of the heating pipeline. A left cavity area is formed inside the pressure test ring, and a right cavity area is formed inside the pressure test ring.

[0009] Preferably, the pressure test area positioning mechanism includes a lower discharge valve fixedly arranged at the bottom end of the lower discharge pipe, and the lower discharge pipe is fixedly communicated with the pressure test ring; the pressure test area positioning mechanism further includes a second pressure sensor, a spray head, a support ring and a bar code; the second pressure sensor is fixedly inserted on one side of the outer wall of the lower discharge pipe, and the spray head is fixedly communicated with the bottom end of the lower discharge valve. The support ring is fixedly installed on the outer wall of the spray head, and the bar code is fixedly connected to one side of the outer wall of the support ring. The inner diameter of the top end of the spray head is larger than the inner diameter of the bottom end of the spray head, and the inner walls of the spray head and the lower discharge pipe are both smooth surfaces.

[0010] When this technology is in use, the leaked water body is pressurized into the lower discharge pipe, and at the same time the lower discharge valve closes the lower discharge pipe. When the second pressure sensor senses the pressure value, the lower discharge valve is opened, so that the leaked water body flows into the spray head along the lower discharge valve, and the spray head performs the downward spraying operation.

[0011] Preferably, the variable position pressure test detection component includes a rotary motor fixedly arranged on the lower surface of the pressing plate; the output end of the rotary motor is fixedly installed with a rotating rod, and the bottom end of the rotating rod is fixedly connected with a rotating shaft. A socket strip is fixedly connected to the outer wall of the rotating shaft, and the bottom end of the socket strip is fixedly connected with a collar; a humidity sensor is fixedly installed on the inner wall of the collar, a bar code recognition sensor is arranged on one side of the collar, and two area indicator lights are fixedly installed on the top end of the outer wall of the pressure test ring. The bar code recognition sensor is fixedly connected with the socket strip, and the socket strip is used to support the humidity sensor.

[0012] When this technology is in use, the rotating motor drives the rotating rod to rotate, the rotating shaft drives the socketed rotating bar to rotate, the collar drives the humidity sensor to rotate, the humidity sensor rotates below the nozzle, and the barcode recognition sensor rotates below the barcode. When the humidity sensor senses the humidity of the leaked water sprayed by the nozzle, after sensing the humidity, the barcode recognition sensor simultaneously performs barcode recognition on the barcode. At this time, the controller turns on the indicator light in the left area, and the maintenance personnel can accurately know the specific area location of the pressure measurement leakage fault of the heating pipeline when they arrive at the scene.

[0013] The technical effects and advantages of the present invention:

[0014] 1. Through the horizontal and vertical spaced pressure testing mechanism of the present invention, when there is a leakage problem in the heating pipeline, the support frame drives the pressure testing ring, causing the two horizontal rubber rings to slide rightward on the outer wall of the heating pipeline, selecting a leakage area on the heating pipeline. The reduction motor drives the bidirectional screw to rotate, and the two threaded sleeve bars approach each other under the action of the thread transmission force. The horizontal rubber ring can be forced to be squeezed and sealed on the heating pipeline, and the two horizontal rubber rings can achieve the sealed pressure testing operation in the horizontal spaced area. The extrusion bar drives the rubber outer sleeve to move upward, and the longitudinal sealing strip is squeezed at the bottom position of the outer wall of the heating pipeline, while the upper longitudinal sealing strip is squeezed and sealed at the top position of the outer wall of the heating pipeline, forming a left cavity area inside the pressure testing ring and a right cavity area inside the pressure testing ring, and can accurately know the specific area of the pressure testing fault leakage of the heating pipeline, greatly improving the pressure testing accuracy of the heating pipeline.

[0015] 2. The present invention adopts a pressure testing area positioning mechanism. The leaked water is pressurized into the lower discharge pipe, and at the same time, the lower discharge valve closes the lower discharge pipe. When the second pressure sensor senses the pressure value, the lower discharge valve is opened, and the leaked water enters the nozzle along the lower discharge valve, and the nozzle realizes the downward spraying operation. The support ring supports the barcode, increasing the stability of the barcode, and can accurately sense and mark the specific leakage positions in the specified horizontal area and vertical spaced area of the heating pipeline, greatly improving the pressure testing accuracy of the heating pipeline.

[0016] 3. The present invention adopts a variable position pressure testing detection component. The rotating motor drives the rotating rod to rotate, the rotating rod drives the rotating shaft to rotate, the socketed rotating bar makes the collar rotate, and at the same time, the collar drives the humidity sensor to rotate, the socketed rotating bar drives the barcode recognition sensor to rotate, and the barcode recognition sensor rotates below the barcode. The humidity sensor senses the humidity of the leaked water sprayed by the nozzle. After sensing the humidity, the barcode recognition sensor performs barcode recognition on the barcode. After the area indicator light lights up, there is a pressure measurement leakage fault at the position of the heating pipeline in the left cavity area inside the pressure testing ring, greatly improving the pressure testing accuracy of the heating pipeline.

[0017] The mutual influence of the above multiple functions first enables the two horizontal rubber rings to perform the sealing pressure test operation in the horizontal interval area. The longitudinal sealing strip is extruded at the bottom position of the outer wall of the heating pipeline, and the upper longitudinal sealing strip is extruded and sealed at the top position of the outer wall of the heating pipeline. Then, when the second pressure sensor senses the pressure value, the lower drain valve is opened, and the leaked water enters the nozzle through the lower drain valve for downward spraying. Finally, when the humidity sensor senses the humidity of the water leaked from the nozzle, the barcode recognition sensor performs barcode recognition on the barcode. In summary, the specific leakage positions in the specified horizontal area and the longitudinal interval area of the heating pipeline can be accurately sensed and marked, and the specific area of the pressure test failure leakage of the heating pipeline can be accurately known, greatly improving the accuracy of the pressure test of the heating pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 FIG. is a schematic diagram of the overall structure of the heating pipeline pressure test device of the present invention.

[0019] Figure 2 FIG. is a schematic diagram of a truncated partial structure at the connection between the heating pipeline and the locking valve of the present invention.

[0020] Figure 3 FIG. is a schematic diagram of a truncated partial structure at the connection between the pressing plate and the arc pressing plate of the present invention.

[0021] Figure 4 FIG. is a schematic diagram of a truncated vertical cross-section at the connection between the rubber outer sleeve and the longitudinal sealing strip of the present invention.

[0022] Figure 5 FIG. is a front view schematic diagram of the connection between the holding rod and the limiting ring of the present invention.

[0023] Figure 6 FIG. is a schematic diagram of the vertical cross-section structure of the heating pipeline pressure test device of the present invention.

[0024] Figure 7 FIG. is a schematic diagram of a truncated bottom view of the connection between the pressure test ring and the lower drain pipe of the present invention.

[0025] Figure 8 FIG. is a bottom view schematic diagram of the pressure test area positioning mechanism of the present invention.

[0026] Figure 9 FIG. is a schematic diagram of the partial structure of the barcode recognition sensor and barcode splitting of the present invention.

[0027] Figure 10 FIG. is a top view schematic diagram of the displacement pressure test detection component of the present invention.

[0028] The reference numerals are: 1, pressure test ring; 2, transverse rubber ring; 3, heat supply pipeline; 4, first pressure sensor; 5, support frame; 6, bidirectional screw; 7, reduction motor; 8, threaded sleeve strip; 9, pressing plate; 10, pressing block; 11, extrusion strip; 12, rubber outer sleeve; 13, longitudinal sealing strip; 14, arc-shaped pressing plate; 15, torque force sensor; 16, support block; 17, battery; 18, holding rod; 19, controller; 20, limiting ring; 21, test valve; 22, booster pump; 23, butt joint threaded pipe; 24, lower discharge pipe; 25, lower discharge valve; 26, second pressure sensor; 27, nozzle; 28, support ring; 29, bar code; 30, rotating motor; 31, rotating rod; 32, rotating shaft; 33, socket rotating strip; 34, collar; 35, humidity sensor; 36, bar code recognition sensor; 37, area indicator lamp; 38, locking valve. Detailed implementation mode

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0030] As shown in the attached Figure 1 -attached Figure 10 As shown in the figure, a heat supply pipeline pressure test device is provided with a transverse and longitudinal interval pressure test mechanism, a pressure test area positioning mechanism, and a displacement pressure test detection component. The settings of each mechanism and component can accurately sense and mark the specific leakage positions in the specified transverse area and longitudinal interval area of the heat supply pipeline 3, can accurately know the specific area of the pressure test failure leakage of the heat supply pipeline 3, and greatly improve the pressure test accuracy of the heat supply pipeline 3. The specific structural settings of each mechanism and component are as follows.

[0031] In this embodiment, as shown in the attached Figure 1 -attached Figure 7 As shown in the figure, two transverse rubber rings 2 are fixedly connected to the inner wall of the pressure test ring 1. The inner wall of the transverse rubber ring 2 is slidably connected to the heat supply pipeline 3. A first pressure sensor 4 is fixedly connected to the inner wall of the heat supply pipeline 3 and away from the position of the transverse rubber ring 2. A transverse and longitudinal interval pressure test mechanism is provided on one side of the outer wall of the pressure test ring 1. The transverse and longitudinal interval pressure test mechanism includes a support frame 5 fixedly arranged on one side of the outer wall of the pressure test ring 1. A bidirectional screw 6 is rotatably connected inside the support frame 5. A reduction motor 7 is fixedly installed at the top of the support frame 5. The reduction motor 7 is used to drive the bidirectional screw 6 to rotate. Two threaded sleeve strips 8 are threadedly connected to the outer wall of the bidirectional screw 6. Both of the two threaded sleeve strips 8 are slidably connected to the support frame 5. The threads on the outer wall of the bidirectional screw 6 are opposite and symmetrically arranged.

[0032] The two threaded sleeves 8 are both slidably connected to the support frame 5, and one end of each threaded sleeve 8 is fixedly connected to a pressure plate 9, a pressure block 10 is fixedly installed on the bottom end of the inner wall of the pressure plate 9, and an extrusion strip 11 is fixedly connected to the top of the pressure block 10. A rubber jacket 12 is bonded to the outer wall of the extrusion strip 11, and the rubber jacket 12 is slidably connected to the pressure test ring 1, and a longitudinal sealing strip 13 is fixedly connected to the top of the extrusion strip 11; the two top ends of the pressure plate 9 are fixedly connected to arc-shaped pressure plates 14, and the arc-shaped pressure plate 14 is fixedly connected to the transverse rubber ring 2; lower row pipes 24 are provided on both sides of the pressure plate 9, and a pressure test area positioning mechanism is provided at the bottom end of the lower row pipe 24, and a displacement pressure test detection component is provided on the lower surface of the pressure plate 9.

[0033] In this embodiment, as shown in the attached Figure 2 - Attachment Figure 6 As shown, a torque sensor 15 is installed at the bottom end of the bidirectional screw 6, and the sensing end of the torque sensor 15 is fixedly connected to the bidirectional screw 6, and a support block 16 is fixedly installed on one side of the outer wall of the torque sensor 15, and the support block 16 is fixedly connected to the support frame 5 so that the support block 16 supports the torque sensor 15. The torque sensor 15 senses the torque of the bidirectional screw 6. When the torque value sensed by the torque sensor 15 is the same as the torque value set by the controller 19, the reduction motor 7 is turned off by the controller 19. A battery 17 is fixedly installed on one side of the support frame 5, and a holding rod 18 is provided below the battery 17, and the holding rod 18 is fixedly connected to the support frame 5; a controller 19 is fixedly installed on the outer wall of the holding rod 18, and limiting rings 20 are provided on both sides of the controller 19, and the two limiting rings 20 are fixedly connected to the holding rod 18, so that the controller 19 can be powered by the battery 17, and the hand is held on the outer wall of the holding rod 18, and the two limiting rings 20 limit the hand, so that the pressure test ring 1 is convenient to move.

[0034] A test valve 21 is fixedly connected to the bottom of the outer wall of the heating pipe 3 and near the position of the first pressure sensor 4. A booster pump 22 is fixedly connected to the bottom of the test valve 21. A butt-jointed threaded pipe 23 is fixedly connected to the input end of the booster pump 22. Locking valves 38 are threadedly connected to both ends of the heating pipe 3. The two locking valves 38 are symmetrically arranged about the heating pipe 3. In order to close the two locking valves 38 through the controller 19, the tap water pipe to be tested is threadedly butt-jointed to the inner wall of the butt-jointed threaded pipe 23, and the booster pump 22 is started by the controller 19, so that the water body to be tested is pressurized to enter the position of the test valve 21. After the test valve 21 is opened, the pressurized water body is poured into the interior of the heating pipe 3. When the pressure value sensed by the first pressure sensor 4 is the same as the test pressure value and is maintained at the pressure value position, the heating pipe 3 does not have leakage or damage problems.

[0035] In this embodiment, as shown in the attached Figure 7- Appendix Figure 8 As shown in the figure, the pressure test area positioning mechanism includes a lower row valve 25 fixedly arranged at the bottom end of the lower row pipe 24. The lower row pipe 24 is fixedly communicated with the pressure test ring 1. The pressure test area positioning mechanism further includes a second pressure sensor 26, a spray head 27, a support ring 28 and a bar code 29. The second pressure sensor 26 is fixedly inserted on one side of the outer wall of the lower row pipe 24, and the spray head 27 is fixedly communicated with the bottom end of the lower row valve 25. The support ring 28 is fixedly installed on the outer wall of the spray head 27, and the bar code 29 is fixedly connected to one side of the outer wall of the support ring 28. The inner diameter of the top end of the spray head 27 is larger than the inner diameter of its bottom end, and the inner walls of the spray head 27 and the lower row pipe 24 are both smooth surfaces.

[0036] In this embodiment, as shown in Appendix Figure 7 - Appendix Figure 10 As shown in the figure, the displacement pressure test detection assembly includes a rotary motor 30 fixedly arranged on the lower surface of the pressing plate 9. The output end of the rotary motor 30 is fixedly installed with a rotating rod 31, and the bottom end of the rotating rod 31 is fixedly connected with a rotating shaft 32. The outer wall of the rotating shaft 32 is fixedly connected with a socket rotating bar 33, and the bottom end of the socket rotating bar 33 is fixedly connected with a collar 34. A humidity sensor 35 is fixedly installed on the inner wall of the collar 34. A bar code recognition sensor 36 is arranged on one side of the collar 34, and two area indicating lights 37 are fixedly installed on the top end of the outer wall of the pressure test ring 1. The bar code recognition sensor 36 is fixedly connected with the socket rotating bar 33, and the socket rotating bar 33 is used to support the humidity sensor 35.

[0037] The using method of the heat supply pipeline pressure test device of the present invention is as follows:

[0038] Step 1. When performing a closed pressure test, the controller 19 is powered by the battery 17. Hold the outer wall of the holding rod 18 by hand, and the two limit rings 20 limit the hand. The controller 19 closes the two locking valves 38 to perform a closing operation on the heat supply pipeline 3. At the same time, the test tap water pipeline is threadedly butted on the inner wall of the butt joint threaded pipe 23. The controller 19 starts the booster pump 22 to increase the pressure of the test water body to the position of the test valve 21. After opening the test valve 21, the pressurized water body is poured into the heat supply pipeline 3. At the same time, the first pressure sensor 4 senses the pressure value inside the heat supply pipeline 3. When the pressure value sensed by the first pressure sensor 4 is the same as the test pressure value and remains at this pressure value position, it means that there is no leakage or damage problem with the heat supply pipeline 3. When the pressure value sensed by the first pressure sensor 4 is lower than the test value set by the controller 19, it means that there is a leakage problem with the heat supply pipeline 3.

[0039] Step 2: During the horizontal and vertical interval pressure test, when the heating pipe 3 is pressurized and leaks, it is moved by holding on the holding rod 18, and the holding rod 18 drives the support frame 5 to move right, and the support frame 5 drives the pressure test ring 1 to make the two horizontal rubber rings 2 slide right on the outer wall of the heating pipe 3. A leakage pressure test area on a heating pipe 3 is selected, and the reduction motor 7 is started. The reduction motor 7 drives the bidirectional screw 6 to rotate, and the bidirectional screw 6 drives the two threaded strips 8 to approach each other under the action of the thread transmission force, so that the threaded strip 8 moves up, and the other threaded strip 8 moves down, and the threaded strip 8 drives the pressure plate 9 to move up, and the pressure plate 9 drives the two arc pressure plates 14 to move up, and the arc pressure plate 14 squeezes the transverse rubber ring 2, and the transverse rubber ring 2 can be squeezed and sealed on the heating pipe 3. Since the two arc pressure plates 14 move in opposite directions and the structure is symmetrically arranged vertically, the other arc pressure plate 14 moves down and squeezes on the transverse rubber ring 2, so that the two transverse rubber rings 2 can realize the sealing pressure test operation of the transverse interval area.

[0040] At the same time, the pressing plate 9 drives the pressing block 10 to move upward, the pressing block 10 drives the extrusion strip 11 to move upward, the extrusion strip 11 drives the rubber jacket 12 to move upward, and the rubber jacket 12 moves upward along the inner wall of the pressure test ring 1, so that the rubber jacket 12 can be squeezed and sealed with the pressure test ring 1. At the same time, the extrusion strip 11 squeezes the longitudinal sealing strip 13, and the longitudinal sealing strip 13 is squeezed at the bottom position of the outer wall of the heating pipe 3, and the upper longitudinal sealing strip 13 is squeezed and sealed at the top position of the outer wall of the heating pipe 3. Since the two longitudinal sealing strips 13 are symmetrically arranged, and the two longitudinal sealing strips 13 move in a manner of moving toward each other, the other longitudinal sealing strip 13 moves downward and is squeezed at the top position of the outer wall of the heating pipe 3, so that the two longitudinal sealing strips 13 can realize the interval sealing operation of the longitudinal area of the heating pipe 3. A left cavity area is formed inside the pressure test ring 1, and a right cavity area is formed inside the pressure test ring 1. The support block 16 is supported by the support frame 5, and the support block 16 supports the torque sensor 15. The torque sensor 15 senses the torque of the bidirectional screw 6. When the torque value sensed by the torque sensor 15 is the same as the torque value set by the controller 19, the reduction motor 7 is turned off by the controller 19. When the left cavity area inside the pressure test ring 1 is filled with water leaking from the heating pipe 3, the leaked water enters the lower discharge pipe 24 from the inside of the pressure test ring 1.

[0041] Step 3: When positioning the pressure test area, the leaked water body is pressurized into the lower drain pipe 24, and at the same time, the lower drain valve 25 closes the lower drain pipe 24, so that the second pressure sensor 26 senses the pressure of the lower drain pipe 24. When the second pressure sensor 26 senses the pressure value, the lower drain valve 25 is opened, so that the leaked water body enters the nozzle 27 along the lower drain valve 25. The nozzle 27 performs a downward spraying operation, and the nozzle 27 supports the support ring 28, and the support ring 28 supports the bar code 29, increasing the stability of the bar code 29.

[0042] Step 4: When performing the displacement pressure test and detection, the controller 19 is used to start the rotation of the rotary motor 30. The rotary motor 30 drives the rotating rod 31 to rotate, the rotating rod 31 drives the rotating shaft 32 to rotate, the rotating shaft 32 drives the socket rotating bar 33 to rotate, and the socket rotating bar 33 causes the collar 34 to rotate. At the same time, the collar 34 drives the humidity sensor 35 to rotate, and the humidity sensor 35 rotates below the nozzle 27. At the same time, the socket rotating bar 33 drives the bar code recognition sensor 36 to rotate, and the bar code recognition sensor 36 rotates below the bar code 29. When the humidity sensor 35 senses the humidity of the leaked water body sprayed by the nozzle 27, after sensing the humidity, the bar code recognition sensor 36 simultaneously performs bar code recognition on the bar code 29. In this way, the controller 19 turns on the left area indicator light 37. After the area indicator light 37 lights up, a pressure test leakage fault occurs at the position of the heating pipe 3 in the left cavity area inside the pressure test ring 1. In this way, when the maintenance personnel arrive at the scene, they can accurately know the specific area position of the pressure test leakage fault of the heating pipe 3, and there is no need to conduct a large-area inspection and treatment of the heating pipe 3.

[0043] The content not described in detail in the specification belongs to the prior art well-known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited. Conventional equipment can be used. In this technical solution, since the electrical control components not mentioned belong to the prior art, they are not shown in the figure and will not be described here.

[0044] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. Heat supply pipeline pressure test device, including a pressure test ring, two transverse rubber rings are fixedly connected to the inner wall of the pressure test ring, and a heat supply pipeline is slidably connected to the inner wall of the transverse rubber ring, characterized in that: A first pressure sensor is fixedly connected to the inner wall of the heat supply pipeline and away from the position of the transverse rubber ring, and a transverse and longitudinal interval pressure testing mechanism is arranged on one side of the outer wall of the pressure testing ring; The transverse and longitudinal interval pressure testing mechanism includes a support frame fixedly arranged on one side of the outer wall of the pressure testing ring, and a bidirectional screw is rotatably connected inside the support frame. A reduction motor is fixedly installed at the top of the support frame, and the reduction motor is used to drive the bidirectional screw to rotate. Two threaded sleeve bars are threadedly connected to the outer wall of the bidirectional screw. Both of the two threaded sleeve bars are slidably connected to the support frame, and the threads on the outer wall of the bidirectional screw are opposite and symmetrically arranged; both of the two threaded sleeve bars are slidably connected to the support frame, and one end of each threaded sleeve bar is fixedly connected to a pressing plate. A pressing block is fixedly installed at the bottom end of the inner wall of the pressing plate, an extrusion strip is fixedly connected to the top end of the pressing block, a rubber outer sleeve is adhered to the outer wall of the extrusion strip, and the rubber outer sleeve is slidably connected to the pressure testing ring. A longitudinal sealing strip is fixedly connected to the top end of the extrusion strip; arc-shaped pressing plates are fixedly connected to both top ends of the pressing plate, and the arc-shaped pressing plates are fixedly connected to the transverse rubber ring; lower drain pipes are arranged on both sides of the pressing plate, and a pressure testing area positioning mechanism is arranged at the bottom end of the lower drain pipe. The pressure testing area positioning mechanism includes a lower drain valve fixedly arranged at the bottom end of the lower drain pipe, and the lower drain pipe is fixedly communicated with the pressure testing ring. The pressure testing area positioning mechanism further includes a second pressure sensor, a spray head, a support ring and a bar code; the second pressure sensor is fixedly inserted on one side of the outer wall of the lower drain pipe, and the spray head is fixedly communicated with the bottom end of the lower drain valve. The support ring is fixedly installed on the outer wall of the spray head, and the bar code is fixedly connected to one side of the outer wall of the support ring. A displacement pressure testing detection component is arranged on the lower surface of the pressing plate. The displacement pressure testing detection component includes a rotary motor fixedly arranged on the lower surface of the pressing plate; a rotating rod is fixedly installed at the output end of the rotary motor, and a rotating shaft is fixedly connected to the bottom end of the rotating rod. A socket rotating strip is fixedly connected to the outer wall of the rotating shaft, and a socket ring is fixedly connected to the bottom end of the socket rotating strip; a humidity sensor is fixedly installed on the inner wall of the socket ring, a bar code recognition sensor is arranged on one side of the socket ring, and two area indicating lights are fixedly installed at the top end of the outer wall of the pressure testing ring.

2. The pressure testing device for heating pipelines according to claim 1, characterized in that: The output end of the reduction motor is fixedly connected to the bidirectional screw, and the longitudinal sealing strip is slidably connected to the heat supply pipeline.

3. The pressure testing device for heating pipelines according to claim 1, characterized in that: A torque force sensor is installed at the bottom end of the bidirectional screw, the sensing end of the torque force sensor is fixedly connected to the bidirectional screw, and a support block is fixedly installed on one side of the outer wall of the torque force sensor, and the support block is fixedly connected to the support frame.

4. The pressure test device for heating pipelines according to claim 1, characterized in that: A battery is fixedly installed on one side of the support frame, a holding rod is arranged below the battery, and the holding rod is fixedly connected to the support frame; A controller is fixedly installed on the outer wall of the holding rod, and limiting rings are arranged on both sides of the controller, and both of the two limiting rings are fixedly connected to the holding rod.

5. The pressure test device for heating pipelines according to claim 1, wherein: A test valve is fixedly communicated with the bottom end of the outer wall of the heat supply pipeline and near the position of the first pressure sensor, a booster pump is fixedly communicated with the bottom end of the test valve, and a butt joint threaded pipe is fixedly communicated with the input end of the booster pump.

6. The pressure testing device for heating pipelines according to claim 1, characterized in that: Locking valves are threadedly communicated with both ends of the heat supply pipeline, and the two locking valves are symmetrically arranged with respect to the heat supply pipeline.

7. The pressure testing device for heating pipelines according to claim 1, wherein: The inner diameter of the top end of the nozzle is larger than that of the bottom end, and the inner walls of both the nozzle and the lower discharge pipe are smooth surfaces.

8. The pressure test device for heating pipelines according to claim 1, characterized in that: The barcode recognition sensor is fixedly connected to the socket rotating bar, and the socket rotating bar is used to support the humidity sensor.

Images