Flange and pipeline joint sealing performance detection device
By designing a flange and pipe joint sealing test device with support, drive, inflation and movement, the problem of low testing efficiency in the existing technology is solved, and fast and convenient sealing test is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DALIAN JIACHENG RITA TECH DEV CO LTD
- Filing Date
- 2025-06-18
- Publication Date
- 2026-04-21
AI Technical Summary
Existing sealing testing devices are not convenient for quickly testing flanges and pipe joints on both sides of the pipeline, and the disassembly process is time-consuming.
A flange and pipe joint sealing performance testing device was designed, comprising a support device, a drive device, an inflation device, a moving device, and a testing device. The pipe joint is placed by the support device, the inflation device is driven by the drive device to inject air, and the testing device is moved by the moving device to perform the test, thereby achieving rapid testing of the flange and pipe joint connection.
It enables rapid and convenient testing of flange and pipe joint connections, saving testing time and improving testing efficiency.
Smart Images

Figure CN224151918U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of sealing test devices, and in particular to a sealing test device for flange and pipe joints. Background Technology
[0002] Pipe joints (flanges, threads, clamps, etc.) are prone to micro-leakage due to vibration, corrosion, or installation deviations. Especially under high pressure, high temperature, or when transporting hazardous media (gas, chemicals), micro-leakage can lead to explosions, environmental pollution, or system failure. Therefore, it is particularly important to have a sealing test device to test the sealing of flanges and pipe joints.
[0003] For example, in a class of prior art represented by application number CN201620424087.X, its main structure includes a sealed space device and a micro-negative pressure vacuum device. The sealed space device has a vent and a pneumatic connector. The pipe flange gas leak detection device is installed on the pipeline, forming a cavity with the flange to collect leaked gas. The micro-negative pressure vacuum pump has a vacuum interface end and a gas source interface end. The silicone tube connects the vacuum interface end and the pneumatic connector. The gas source interface end is connected to an externally provided gas source. The silicone tube is equipped with a pressure gauge and a pneumatic switch valve. During detection, the leak rate measuring instrument is connected to the pipe flange gas leak detection device through the silicone tube.
[0004] During use, it was found that when there are flanges on both sides of the pipeline, the existing sealing test device is not convenient to quickly test the flanges and pipe joints on both sides. Disassembly wastes time. Therefore, there is an urgent need for a flange and pipe joint sealing test device. Utility Model Content
[0005] To solve the above-mentioned technical problems, this utility model provides a flange and pipe joint sealing performance testing device that facilitates pipe placement through a support device, drives an inflation device through a drive device, inflates the inside of the pipe through the inflation device, moves a testing device through a moving device, and tests the flange and pipe connection through the testing device.
[0006] This utility model discloses a flange and pipe joint sealing performance testing device, including an operating table; it also includes a support device, a drive device, an inflation device, a moving device, and a testing device. The support device, drive device, and inflation device are all mounted on the operating table, the moving device is mounted on the inflation device, and the testing device is mounted on the moving device. The support device facilitates placement of the pipe joint, the drive device drives the inflation device, the inflation device injects air into the pipe joint, the moving device moves the testing device, and the testing device performs the test.
[0007] Preferably, the operating table includes a base, which is installed in the work area and has a sliding groove; the base provides support.
[0008] Preferably, the support device includes a dual-axis cylinder and a placement platform. The dual-axis cylinder is installed at the bottom of the base, and the output end of the dual-axis cylinder is provided with two sets of output shafts. The placement platform is installed at the top of the output shafts. The pipe connector is placed on the placement platform, and then the dual-axis cylinder is activated to drive the output shafts to extend, thereby raising the placement platform and the pipe connector.
[0009] Preferably, the driving device includes a motor, a bidirectional lead screw, a slider, and a second slider. The motor is mounted on the side of the base, and the output end of the motor is rotatably connected to the input end of the bidirectional lead screw. The sliders are threadedly mounted on the bidirectional lead screw and slidably mounted on the slide groove. When the motor is started, the bidirectional lead screw is rotated, which moves the sliders in opposite directions on the slide groove.
[0010] Preferably, the inflation device includes a bracket, an ammonia input pump, a first pipe, a mounting plate, a sealing gasket, a second pipe, a mounting spray, and a sealing gasket. The bracket is mounted on the top of the base, the ammonia input pump is mounted on the top of the bracket, and the output end of the ammonia input pump is connected to the input end of the first pipe. The first pipe passes through a slider, and the output end of the first pipe is connected to the input end of the mounting plate. The mounting plate is mounted on the slider. The sealing gasket is mounted on the side end of the mounting plate. The output end of the ammonia input pump is connected to the input end of the second pipe, the second pipe passes through the slider, and the output end of the second pipe is connected to the input end of the mounting spray. The mounting spray is mounted on the side end of the slider. The sealing gasket is mounted on the side end of the mounting spray. When the ammonia input pump is started, ammonia is input through the input ends of the first and second pipes, discharged through the mounting plate and the sealing gasket, and sealed by the sealing gasket.
[0011] Preferably, the moving device includes a second motor, a lead screw, a third slider, a guide sleeve, and a guide shaft. The second motor is mounted on the side of the bracket, and the output end of the second motor is rotatably connected to the input end of the lead screw. The third slider is mounted on the lead screw via a threaded connection, the guide sleeve is mounted on the third slider, and the guide shaft is mounted on the bracket, with the guide sleeve fitted onto the guide shaft. By starting the second motor, the lead screw is driven to rotate, thereby enabling the third slider to move directionally on the guide shaft via the guide sleeve.
[0012] Preferably, the detection device includes an ammonia detector, which is installed on the slider three; the ammonia detector is used to detect pipe joints and flange connections, and when there is an ammonia leak, the ammonia detector will sound an alarm to remind the operator to weld in time.
[0013] Compared with the prior art, the advantages of this utility model are as follows: the support device facilitates the placement of the pipe joint, the driving device drives the inflation device, the inflation device injects air into the pipe joint, the moving device moves the detection device, and the detection device detects the connection between the flange and the pipe joint. Attached Figure Description
[0014] Figure 1 This is the structural isometric drawing of this utility model;
[0015] Figure 2 yes Figure 1 Structural isometric view of the operating console and drive device in this utility model;
[0016] Figure 3 yes Figure 1 Structural isometric drawing of the operating console and moving device in this utility model;
[0017] Figure 4 yes Figure 1 The structural isometric drawing of the control panel and drive device in this utility model.
[0018] The attached diagram is labeled as follows: 01, operating table; 11, base; 12, slide groove; 02, support device; 21, dual-axis cylinder; 22, output shaft; 23, placement platform; 03, drive device; 31, motor one; 32, double-acting lead screw; 33, slider one; 34, slider two; 04, inflation device; 41, bracket; 42, ammonia input pump; 43, first pipe; 44, mounting plate one; 45, sealing gasket one; 46, second pipe; 47, mounting plate two; 48, sealing gasket two; 05, moving device; 51, motor two; 52, lead screw; 53, slider three; 54, guide sleeve; 55, guide shaft; 06, detection device; 61, ammonia detector. Detailed Implementation
[0019] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.
[0020] Example 1
[0021] A flange and pipe joint sealing performance testing device includes an operating table 01; characterized in that it further includes a support device 02, a drive device 03, an inflation device 04, a moving device 05, and a testing device 06, wherein the support device 02, the drive device 03, and the inflation device 04 are all mounted on the operating table 01, the moving device 05 is mounted on the inflation device 04, and the testing device 06 is mounted on the moving device 05.
[0022] The support device 02 is easy to place, the drive device 03 drives it, the inflation device 04 inflates it, the moving device 05 moves it, and the detection device 06 performs detection.
[0023] The operating table 01 includes a base 11, which is installed in the work area and has a sliding groove 12.
[0024] The support device 02 includes a dual-axis cylinder 21 and a placement platform 23. The dual-axis cylinder 21 is installed at the bottom end of the base 11, and the output end of the dual-axis cylinder 21 is provided with two sets of output shafts 22. The placement platform 23 is installed at the top of the output shafts 22.
[0025] The drive device 03 includes a motor 31, a bidirectional lead screw 32, a slider 33, and a slider 34. The motor 31 is mounted on the side of the base 11. The output end of the motor 31 is rotatably connected to the input end of the bidirectional lead screw 32. The sliders 33 and 34 are mounted on the bidirectional lead screw 32 by threaded connection. The sliders 33 and 34 are slidably mounted on the slide groove 12.
[0026] The inflation device 04 includes a bracket 41, an ammonia input pump 42, a first pipe 43, a mounting plate 44, a sealing gasket 45, a second pipe 46, a second mounting spray 47, and a second sealing gasket 48. The bracket 41 is installed on the top of the base 11, the ammonia input pump 42 is installed on the top of the bracket 41, the output end of the ammonia input pump 42 is connected to the input end of the first pipe 43, the first pipe 43 passes through a slider 33, the output end of the first pipe 43 is connected to the input end of the mounting plate 44, the mounting plate 44 is installed on the slider 33, the sealing gasket 45 is installed on the side end of the mounting plate 44, the output end of the ammonia input pump 42 is connected to the input end of the second pipe 46, the second pipe 46 passes through a slider 34, the output end of the second pipe 46 is connected to the input end of the second mounting spray 47, the second mounting spray 47 is installed on the side end of the slider 34, and the sealing gasket 48 is installed on the side end of the second mounting spray 47.
[0027] The detection device 06 includes an ammonia detector 61, which is mounted on the slider 53.
[0028] The support device 02 is easy to place, the drive device 03 drives it, the inflation device 04 inflates it, and the detection device 06 performs detection.
[0029] Place the pipe connector on the placement platform 23. Then, start the dual-axis cylinder 21 to extend the output shaft 22, raising the placement platform 23 and the pipe connector. Next, start the motor 31 to rotate the bidirectional screw 32, causing slider 33 and slider 34 to move towards each other on the slide groove 12. When the sealing gasket 45 and sealing gasket 48 form a seal with the flanges on both sides, stop the motor 31. Then, start the dual-axis cylinder 21 to retract the output shaft 22, lowering the placement platform 23. Then, start the ammonia input pump 42 to input ammonia through the input ends of the first pipe 43 and the second pipe 46, discharging it into the pipe connector through the mounting plate 44 and sealing gasket 48. Manually move the ammonia detector 61 to position it at one flange connection point. Gas detection is performed at the connection point. If no leak is detected, the ammonia detector 61 is manually moved to the flange connection at the other end for detection. If an ammonia leak is detected, the ammonia detector 61 will sound an alarm, reminding the operator to weld in time. If there is no leak, the output shaft 22 is extended by starting the dual-axis cylinder 21, raising the placement platform 23 and the pipe joint. The double-axis screw 32 is rotated by starting the motor 31, causing the slider 33 and slider 34 to move towards each other on the slide groove 12, moving the sealing gasket 45 and sealing gasket 48 away from the pipe joint. The pipe joint falls onto the placement platform 23. The output shaft 22 is retracted by starting the dual-axis cylinder 21, lowering the placement platform 23 and the pipe joint to remove them. The above operation is then repeated.
[0030] Example 2
[0031] like Figures 1 to 4 As shown, in addition to Embodiment 1, a mobile device 05 is also included;
[0032] The moving device 05 includes a second motor 51, a lead screw 52, a third slider 53, a guide sleeve 54, and a guide shaft 55. The second motor 51 is mounted on the side of the bracket 41, and the output end of the second motor 51 is rotatably connected to the input end of the lead screw 52. The third slider 53 is mounted on the lead screw 52 by a threaded connection, the guide sleeve 54 is mounted on the third slider 53, and the guide shaft 55 is mounted on the bracket 41, with the guide sleeve 54 fitted onto the guide shaft 55.
[0033] Mobile device 05 moves;
[0034] By starting motor 2 51, the lead screw 52 is driven to rotate, and slider 3 53 moves directionally on guide shaft 55 through guide sleeve 54, so that ammonia detector 61 is positioned at the flange connection at the other end to detect the other connection. When there is an ammonia leak, ammonia detector 61 will sound an alarm to remind the operator to weld in time.
[0035] This utility model discloses a flange and pipe joint sealing performance testing device. During operation, the pipe joint is first placed on a placement platform 23. Then, the dual-shaft cylinder 21 is activated, causing the output shaft 22 to extend, raising the placement platform 23 and the pipe joint. Next, the motor 31 is activated, causing the bidirectional screw 32 to rotate, moving sliders 33 and 34 towards each other on the slide groove 12. When the sealing gaskets 45 and 48 form a seal with the flanges on both sides, the motor 31 is stopped. Then, the dual-shaft cylinder 21 is activated, causing the output shaft 22 to retract, lowering the placement platform 23. Next, the ammonia input pump 42 is activated, inputting ammonia through the input ends of the first pipe 43 and the second pipe 46, and discharging it into the pipe joint through the mounting plate 44 and the sealing gasket 48. Finally, the motor 51 is activated, causing the screw 52 to rotate, moving slider 53 directionally on the guide shaft 55 via the guide sleeve 54, thus detecting the ammonia. Instrument 61 is positioned at one flange connection point to detect gas at the connection. If no leak is detected, motor 51 is started, driving screw 52 to rotate. This causes slider 53 to move directionally on guide shaft 55 via guide sleeve 54, positioning ammonia detector 61 at the other flange connection point to detect the other connection. If an ammonia leak is detected, ammonia detector 61 will sound an alarm, alerting the operator to weld immediately. If no leak is detected, the dual-axis cylinder 21 is started, driving the output... The shaft 22 extends to raise the placement platform 23 and the pipe joint. The starting of motor 31 drives the bidirectional lead screw 32 to rotate, causing slider 33 and slider 34 to move towards each other on the slide groove 12. This moves the sealing gasket 45 and sealing gasket 48 away from the pipe joint, and the pipe joint falls onto the placement platform 23. The starting of the dual-shaft cylinder 21 drives the output shaft 22 to retract, lowering the placement platform 23 and the pipe joint to remove them. The above operation can then be repeated.
[0036] The dual-shaft cylinder 21, motor 31, ammonia input pump 42, motor 51, and ammonia detector 61 of this utility model are commercially available. Technical personnel in this industry only need to install and operate them according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.
[0037] The main function achieved by this utility model is to enable the movement of the detector, thereby saving time.
[0038] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. A flange and pipe joint sealing detection device, comprising an operation table (01); characterized in that, It also includes a support device (02), a drive device (03), an inflation device (04), a moving device (05), and a detection device (06). The support device (02), the drive device (03), and the inflation device (04) are all installed on the operating table (01), the moving device (05) is installed on the inflation device (04), and the detection device (06) is installed on the moving device (05). The support device (02) is easy to place, the drive device (03) drives it, the inflation device (04) inflates it, the moving device (05) moves it, and the detection device (06) performs the detection.
2. The flange-to-pipe joint leak detection apparatus of claim 1, wherein, The operating table (01) includes a base (11), which is installed in the working area and has a sliding groove (12).
3. A device for testing the tightness of a flange and pipeline joint as set forth in claim 2, characterized in that The support device (02) includes a dual-axis cylinder (21) and a placement platform (23). The dual-axis cylinder (21) is installed at the bottom of the base (11). The output end of the dual-axis cylinder (21) is provided with two sets of output shafts (22). The placement platform (23) is installed at the top of the output shafts (22).
4. The flange-to-pipe joint leak detection apparatus of claim 2, wherein, The drive device (03) includes a motor (31), a bidirectional lead screw (32), a slider (33), and a slider (34). The motor (31) is mounted on the side of the base (11). The output end of the motor (31) is rotatably connected to the input end of the bidirectional lead screw (32). The slider (33) and slider (34) are mounted on the bidirectional lead screw (32) by threaded connection. The slider (33) and slider (34) are slidably mounted on the slide groove (12).
5. A device for testing the tightness of a flange and pipeline joint as set forth in claim 4, characterized in that The inflation device (04) includes a bracket (41), an ammonia input pump (42), a first pipe (43), a mounting plate (44), a sealing gasket (45), a second pipe (46), a mounting spray (47), and a sealing gasket (48). The bracket (41) is mounted on the top of the base (11), and the ammonia input pump (42) is mounted on the top of the bracket (41). The output end of the ammonia input pump (42) is connected to the input end of the first pipe (43). The first pipe (43) passes through the slider (33), and the first pipe (43) outputs... The output end is connected to the input end of mounting plate one (44), mounting plate one (44) is mounted on slider one (33), sealing gasket one (45) is mounted on the side end of mounting plate one (44), the output end of ammonia input pump (42) is connected to the input end of second pipe (46), second pipe (46) passes through slider two (34), the output end of second pipe (46) is connected to the input end of mounting spray two (47), mounting spray two (47) is mounted on the side end of slider two (34), and sealing gasket two (48) is mounted on the side end of mounting spray two (47).
6. A device for detecting the tightness of a flange and pipeline joint as set forth in claim 5, wherein The moving device (05) includes a second motor (51), a lead screw (52), a third slider (53), a guide sleeve (54), and a guide shaft (55). The second motor (51) is mounted on the side of the bracket (41), and the output end of the second motor (51) is rotatably connected to the input end of the lead screw (52). The third slider (53) is mounted on the lead screw (52) by a threaded connection. The guide sleeve (54) is mounted on the third slider (53), and the guide shaft (55) is mounted on the bracket (41). The guide sleeve (54) is fitted onto the guide shaft (55).
7. A device for testing the tightness of a flange and pipeline joint as set forth in claim 6, characterized in that The detection device (06) includes an ammonia detector (61), which is mounted on slider three (53).
Citation Information
Patent Citations
Pipe flange gas leak detection device
CN205679362U