Sealing performance detection device for pressure pipeline design

Abstract

The utility model relates to the technical field of pipeline sealing performance detection, and discloses a sealing performance detection device for pressure pipeline design, which comprises an air-entrapping pressure measurement assembly, the air-entrapping pressure measurement assembly comprises an air-entrapping pipe, one end of the air-entrapping pipe is connected with a three-way pipe, and one end of the three-way pipe is connected with an air pressure measurement device. The outer side of the air adding pipe is fixedly sleeved with a blocking air bag, and the other end of the three-way pipe is connected with an air distributing assembly. The plugging air bag is inserted into the to-be-detected pipeline, the air inflation device is connected with the air pipe quick connector, air inflation is switched through the three-way valve, the plugging air bag is expanded to be attached to the inner wall of the pipeline, plugging is completed, then the three-way valve is switched to the full-closed state, pipeline ports are plugged one by one, and finally the interior of the pipeline is inflated to the specified pressure. The device is simple and flexible in overall operation, is suitable for pipelines with different diameters, and has the advantages of being wide in application range and convenient to use.

Description

Technical Field

[0001] This application relates to the technical field of pipeline sealing detection, and in particular to a sealing detection device for pressure pipeline design. Background Art

[0002] During the design, manufacture, and installation of pressure pipelines, sealing detection is a key link to ensure the safe operation of the pipeline system.

[0003] "A sealing detection device for pressure pipeline design" is disclosed in "CN216746662U", which includes a detection box body. The detection box body is L-shaped. A side pressing component is arranged on the side of the detection box body, and a top pressing component is arranged on the top of the detection box body. A placement hole is opened on the side of the detection box body, and the placement hole is sealed by a cover plate structure. A bottom box is fixed at the bottom of the detection box body, and an air outlet pipe is arranged on the bottom box. A pressure inlet component is arranged at the end of the air outlet pipe, and pressure sensors are uniformly arranged on the side wall of the detection box body. By setting an L-shaped detection box body, it can detect the quality of elbows for direction conversion. At the same time, in this application, by detecting the pressure change inside the detection box body, it can more accurately detect whether the pressure inside the detection box body changes. However, this utility model lacks an adjustable sealing structure. In actual use, it is not convenient to detect the sealing of pipelines with different diameters, and it is difficult to effectively fix and seal pipelines with other complex shapes (such as tees, S-shaped), affecting the scope of use. Summary of the Utility Model

[0004] In order to solve the problem of lacking an adjustable fixing device and being inconvenient to detect the sealing of pipelines with different diameters, this application provides a sealing detection device for pressure pipeline design.

[0005] A sealing detection device for pressure pipeline design provided by this application adopts the following technical solutions:

[0006] A sealing detection device for pressure pipeline design includes a gas charging and pressure measuring component. The gas charging and pressure measuring component includes a gas charging pipe. One end of the gas charging pipe is connected to a three-way pipe. One end of the three-way pipe is connected to a pressure measuring device for measuring the pressure inside the pipeline to be detected. A sealing airbag is fixedly sleeved outside the gas charging pipe for inflating and expanding to seal the port of the pipeline. The remaining one end of the three-way pipe is connected to a gas distribution component for controlling the flow direction of the pressurized gas.

[0007] Preferably, the gas distribution component includes a three-way valve arranged on the three-way pipe for controlling the flow direction and release of gas. One end of the three-way valve is connected to a connecting pipe, and the end of the connecting pipe is communicated with the sealing airbag.

[0008] Preferably, the remaining end of the three-way valve is connected to a trachea quick connector for quick connection to the pipeline of the inflation device.

[0009] Preferably, a connecting frame is provided on the outer side of the gas filling pipe, and the connecting frame includes a cover plate fixedly sleeved on the gas filling pipe, and a plurality of pressure plates are provided on the cover plate, and the pressure plates can move along the radial direction of the gas filling pipe.

[0010] Preferably, a protective cushion is provided on one side of the pressure plate close to the gas pipe.

[0011] In summary, this application has the following beneficial technical effects:

[0012] By using the connecting frame, the air filling and pressure measuring component, the blocking airbag and the air distribution component in coordination, the blocking airbag is inserted into the pipe to be tested, and then the inflation device is used to connect it to the trachea quick connector, and the blocking airbag is inflated through the three-way valve, so that the blocking airbag is inflated and fits tightly against the inner wall of the pipe to complete the blocking of the pipe port, and then the three-way valve is switched to a fully closed state, and then the next pipe port is blocked. After the last pipe port is blocked, the three-way valve is switched to a conducting state with the three-way pipe, and after the inside of the pipe is inflated to a specified pressure, the pressurization is stopped, and the index change of the air pressure measuring device is observed. The overall operation is simple, and it can be flexibly matched according to the type of pipe, and it is highly flexible to use. By blocking the pipe with the blocking airbag, pipes of different diameters can be used. Compared with the existing technology, it has a wide range of applications and is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of a first-perspective three-dimensional structure of an embodiment of the application;

[0014] Figure 2 is a schematic diagram of a second perspective three-dimensional structure of an embodiment of the application;

[0015] Figure 3 It is a schematic diagram of the three-dimensional structure from a third perspective of the embodiment of the application.

[0016] Explanation of the accompanying reference numerals: 1. Connecting frame; 101. Cover plate; 102. Support plate; 103. Screw; 104. Pressing plate; 2. Gas filling and pressure measuring assembly; 201. Gas filling pipe; 202. Three-way pipe; 203. Air pressure measuring device; 3. Sealing airbag; 4. Gas distribution assembly; 401. Three-way valve; 402. Air pipe quick connector; 403. Connecting pipe. DETAILED DESCRIPTION

[0017] The following is combined with Figures 1-3 This application is described in further detail.

[0018] The embodiment of the present application discloses a sealing detection device for pressure pipeline design.Figures 1-3 , A sealing detection device for pressure pipeline design, including an air charging and pressure measuring component 2. The air charging and pressure measuring component 2 includes a tee pipe 202. One end of the tee pipe 202 is connected with an air charging pipe 201. A sealing airbag 3 is fixedly sleeved outside the air charging pipe 201. The port of the pipeline to be detected can be sealed by inflation and expansion, and pipelines with different size specifications can be adapted. The other end of the tee pipe 202 is connected with a pressure measuring device 203. The pressure measuring device 203 can select a suitable model of pressure gauge according to needs. The pressure gauge is communicated with the inside of the pipeline to be detected through the tee pipe 202 by means of the air charging pipe 201, and the internal air pressure of the pipeline to be detected can be accurately measured.

[0019] Refer to Figures 2-3 , The remaining end of the tee pipe 202 is connected with an air distribution component 4. The air distribution component 4 includes a three-way valve 401 installed on the tee pipe 202. The other end of the three-way valve 401 is connected with an air pipe quick connector 402. The air pipe quick connector 402 is quickly connected with the quick release connector adapted to the pipeline on the air charging device, realizing the quick connection between the air charging device and the three-way valve 401. One end of the three-way valve 401 is connected with a connecting pipe 403, and the end of the connecting pipe 403 is communicated with the sealing airbag 3. Through the three-way valve 401, the communication between the air pipe quick connector 402 and the connecting pipe 403, the communication between the air pipe quick connector 402 and the tee pipe 202, and the fully closed state (neither the air pipe quick connector 402 nor the connecting pipe 403 is communicated with the air pipe quick connector 402) can be realized, and the air pressure in the pipeline to be detected and inside the sealing airbag 3 can be kept constant.

[0020] Refer to Figure 1 , According to needs, it can be selected whether to fixedly sleeve a connecting frame 1 outside the air charging pipe 201. The connecting frame 1 includes a cover plate 101 fixedly sleeved on the air charging pipe 201. Three support plates 102 are installed on the cover plate 101 along the circumferential direction. Three screw rods 103 are installed on the three support plates 102 by threads. The end of the screw rod 103 is rotatably installed with a pressing plate 104. A protective soft pad is installed on one side of the pressing plate 104 close to the air charging pipe 201. Through the three-point support of the three screw rods 103, it can be ensured that the air charging pipe 201 is always in a state perpendicular to the pipeline port, and the sealing airbag 3 can be prevented from being affected by force rotation to affect airtightness.

[0021] The implementation principle of a sealing detection device for pressure pipeline design in an embodiment of the present application is as follows:

[0022] First, confirm the shape of the pressure pipeline to be detected so as to select an appropriate number of sealing airbags 3, such as a tee pipeline, an L-shaped pipeline, etc. Place the sealing airbag 3 at the port of the pipeline to be detected. If the device is equipped with a connecting frame 1, the cover plate can be fitted to the pipeline port, and the screw rod 103 can be screwed to cooperate with the pressing plate 104 to support the air charging pipe 201 at three points, ensuring that it remains vertical during the detection process and preventing the airbag from being affected by force rotation to affect airtightness.

[0023] Start the inflation device, inflate the plugging airbag 3 through the quick coupling 402 of the air pipe and the air distribution assembly 4 to ensure that the airbag can closely fit the pipe port to form an effective plugging. Select whether to inflate into the pipe interior or only into the airbag as needed, and adjust the switch state of the three-way valve 401 to keep the air pressure inside the pipe or the airbag constant. If inflation is not required, switch 401 to the fully closed state. Separate the inflation device from the quick coupling 402 of the air pipe and move it to the next pipe interface. Then plug the next pipe port until the last pipe port is plugged, and then inflate the interior of the pipe to be tested to the specified air pressure. Then switch 401 to the fully closed state. And turn off the inflation device, open the air release channel of the three-way valve 401, and slowly release the gas inside the pipe and the airbag.

[0024] Observe the reading of the air pressure measuring device 203, record and analyze the change in the air pressure inside the pipe to be tested, and judge whether its sealing performance is qualified.

[0025] Finally, the following points should be noted: First, in the description of this application, it should be noted that unless otherwise specified and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense, which can be mechanical connection or electrical connection, or the communication inside two components, and can be directly connected. "Upper", "lower", "left", "right", etc. are only used to represent the relative position relationship. When the absolute position of the object being described changes, the relative position relationship may change;

[0026] Second: In the attached drawings of the disclosed embodiments of the present utility model, only the structures related to the disclosed embodiments are involved. Other structures can refer to the general design. Without conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0027] Finally: The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

[0028] The above are all the preferred embodiments of this application, and do not limit the protection scope of this application accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of this application shall be covered within the protection scope of this application.

Claims

1. A sealing detection device for pressure pipeline design, comprising a gas filling and pressure measuring component (2), characterized in that: The gas charging and pressure measuring assembly (2) includes a gas charging pipe (201). One end of the gas charging pipe (201) is connected to a tee pipe (202). One end of the tee pipe (202) is connected to a pressure measuring device (203) for measuring the pressure inside the pipeline to be detected. A sealing airbag (3) is fixedly sleeved on the outer side of the gas charging pipe (201) for inflating and expanding to seal the port of the pipeline. The remaining end of the tee pipe (202) is connected to a gas distributing assembly (4) for controlling the flow direction of the pressurized gas.

2. The sealing detection device for pressure pipeline design according to claim 1, wherein: The gas distributing assembly (4) includes a three-way valve (401) arranged on the tee pipe (202) for controlling the flow direction and release of the gas. One end of the three-way valve (401) is connected to a connecting pipe (403), and the end of the connecting pipe (403) is communicated with the sealing airbag (3).

3. The sealing detection device for pressure pipeline design according to claim 2, characterized in that: The remaining end of the three-way valve (401) is connected to a quick coupling for air pipes (402) for quickly connecting with the pipeline of the inflating device.

4. A sealing detection device for pressure pipeline design according to claim 1, characterized in that: A connecting frame (1) is arranged on the outer side of the gas charging pipe (201). The connecting frame (1) includes a cover plate (101) fixedly sleeved on the gas charging pipe (201). A plurality of pressing plates (104) are arranged on the cover plate (101), and the pressing plates (104) can move along the radial direction of the gas charging pipe (201).

5. The sealing detection device for pressure pipeline design according to claim 4, characterized in that: A protective soft pad is arranged on one side of each pressing plate (104) close to the gas charging pipe (201).

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