A gas leak detection device applied to an industrial pipeline

Abstract

The utility model discloses a gas leak detection device for industrial pipeline, including the pipeline main body of detection, the one side of pipeline main body of detection is provided with control module, the beginning of pipeline main body of detection is provided with first overhaul ball valve, one side of first ball valve is connected with first pneumatic ball valve, the outside parallel connection of first pneumatic ball valve has first auxiliary mechanism, the other side of first pneumatic ball valve is provided with second overhaul ball valve, the end of pipeline main body of detection is provided with third overhaul ball valve, one side of third overhaul ball valve is provided with fifth pneumatic ball valve, the other side of fifth pneumatic ball valve is provided with fourth overhaul ball valve, through the pipeline that needs gas leak detection, utilize the installation on line smell agent launch device and emptying valve group device on the pipeline, whether good for early warning pipeline and pipe fitting seal, has the advantages such as continuous detection, whole system detection, detection cost is low.

Description

Technical Field

[0001] This utility model relates to the field of industrial pipeline inspection, and in particular to a gas leak detection device for industrial pipelines. Background Technology

[0002] Currently, industrial pipelines (including fittings) require gas instead of liquid for leak detection due to production requirements or safety factors. However, once the pipeline is put into use, it is not convenient and economical to check whether the pipeline is well sealed. Traditional gas leak detection requires long-term shutdown and emptying of the medium in the pipeline before gas leak detection, which is inefficient and costly. To address the above problems, a gas leak detection device for industrial pipelines is provided. Utility Model Content

[0003] The technical problem this invention aims to solve is to overcome the shortcomings of existing devices, such as centralized pipeline air tightness testing or the addition of odorants to transported gases. These detection technologies are costly, have long testing cycles, and are not easy to detect minor leaks. This invention provides a gas leak detection device for industrial pipelines.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a gas leak detection device for industrial pipelines, comprising a pipeline body to be tested, a control module disposed on one side of the pipeline body to be tested, a first maintenance ball valve disposed at the beginning of the pipeline body to be tested, a first pneumatic ball valve connected to one side of the first maintenance ball valve, a first auxiliary mechanism connected in parallel to the outside of the first pneumatic ball valve, a second maintenance ball valve disposed on the other side of the first pneumatic ball valve, a third maintenance ball valve disposed at the end of the pipeline body to be tested, a fifth pneumatic ball valve disposed on one side of the third maintenance ball valve, a fourth maintenance ball valve disposed on the other side of the fifth pneumatic ball valve, and a second auxiliary mechanism disposed between the fifth pneumatic ball valve and the fourth maintenance ball valve.

[0005] As a further description of the above technical solution:

[0006] The first auxiliary mechanism includes a second pneumatic ball valve and a third pneumatic ball valve. The third pneumatic ball valve is connected in series on one side of the second pneumatic ball valve, and a second conducting ball valve is connected in series on the other side of the third pneumatic ball valve. A one-way valve is connected in series on the other side of the second conducting ball valve. An odor emitting device is provided on one side of the second and third pneumatic ball valves. The odor emitting device is connected to the second and third pneumatic ball valves via a third conducting ball valve. A first conducting ball valve is connected in parallel on one side of the third conducting ball valve.

[0007] As a further description of the above technical solution:

[0008] The second auxiliary mechanism includes a fourth pneumatic ball valve and a fourth conducting ball valve, which are connected in series. The other end of the fourth conducting ball valve is connected to the intermediate pipeline between the fifth pneumatic ball valve and the fourth maintenance ball valve.

[0009] As a further description of the above technical solution:

[0010] A first pressure sensor is installed between the first pneumatic ball valve and the second maintenance ball valve, and a second pressure sensor is installed between the third maintenance ball valve and the fifth pneumatic ball valve.

[0011] As a further description of the above technical solution:

[0012] The one-way valve controls the second conducting ball valve to conduct unidirectionally towards the second maintenance ball valve.

[0013] As a further description of the above technical solution:

[0014] The control module controls the status of the first pneumatic ball valve, the second pneumatic ball valve, the third pneumatic ball valve, the fourth pneumatic ball valve, the fifth pneumatic ball valve, and the odor emitting device.

[0015] This utility model has the following beneficial effects:

[0016] In this invention, an online odorant emitter and a vent valve assembly are installed on pipelines that require gas leak detection to provide early warning of whether the pipeline and fittings are properly sealed. This invention has the advantages of continuous detection, full-system detection, and low detection cost. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a gas leak detection device for industrial pipelines according to this utility model.

[0018] Legend:

[0019] A1, First maintenance ball valve; A2, First pneumatic ball valve; A3, Second maintenance ball valve; A4, Second pneumatic ball valve; A5, Check valve; A6, First operating ball valve; A7, Third pneumatic ball valve; A8, Second operating ball valve; A9, Third operating ball valve; A10, Fourth pneumatic ball valve; A11, Fourth operating ball valve; A12, Third maintenance ball valve; A13, Fifth pneumatic ball valve; A14, Fourth maintenance ball valve; C1, Odor emitting device; K1, Control module; P1, First pressure sensor; P2, Second pressure sensor. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Referring to Figure 1, this utility model provides a gas leak detection device for industrial pipelines, including a pipeline body to be tested. A control module K1 is provided on one side of the pipeline body to be tested. A first maintenance ball valve A1 is provided at the beginning of the pipeline body to be tested. A first pneumatic ball valve A2 is connected to one side of the first maintenance ball valve A1. A first auxiliary mechanism is connected in parallel to the outside of the first pneumatic ball valve A2. A second maintenance ball valve A3 is provided on the other side of the first pneumatic ball valve A2. A third maintenance ball valve A12 is provided at the end of the pipeline body to be tested. A fifth pneumatic ball valve A13 is provided on one side of the third maintenance ball valve A12. A fourth maintenance ball valve A14 is provided on the other side of the fifth pneumatic ball valve A13. A second auxiliary mechanism is provided between the fifth pneumatic ball valve A13 and the fourth maintenance ball valve A14.

[0022] In use, by setting up multiple maintenance ball valves and pneumatic ball valves, the gas flow can be quickly cut off or controlled when needed, thereby improving the safety of the entire system.

[0023] The first auxiliary mechanism includes a second pneumatic ball valve A4 and a third pneumatic ball valve A7. The third pneumatic ball valve A7 is connected in series on one side of the second pneumatic ball valve A4, and a second conducting ball valve A8 is connected in series on the other side of the third pneumatic ball valve A7. A one-way valve A5 is connected in series on the other side of the second conducting ball valve A8. An odor emitting device C1 is provided on one side of the second pneumatic ball valve A4 and the third pneumatic ball valve A7. A third conducting ball valve A9 is connected to the odor emitting device C1 and the second pneumatic ball valve A4 and the third pneumatic ball valve A7. A first conducting ball valve A6 is connected in parallel on one side of the third conducting ball valve A9. Through the series design of the second pneumatic ball valve A4 and the third pneumatic ball valve A7, as well as the subsequent second conducting ball valve A8 and one-way valve A5, a continuous detection path is formed, which can more accurately control the gas flow and improve the accuracy of leak detection.

[0024] The second auxiliary mechanism includes a fourth pneumatic ball valve A10 and a fourth conducting ball valve A11, which are connected in series. The other end of the fourth conducting ball valve A11 is connected to the intermediate pipe of the fifth pneumatic ball valve A13 and the fourth maintenance ball valve A14. Through the series connection of the fourth pneumatic ball valve A10 and the fourth conducting ball valve A11, and their connection with the fifth pneumatic ball valve A13 and the fourth maintenance ball valve A14, a complete auxiliary detection path is formed, improving the accuracy and reliability of the detection.

[0025] A first pressure sensor P1 is installed between the first pneumatic ball valve A2 and the second maintenance ball valve A3, and a second pressure sensor P2 is installed between the third maintenance ball valve A12 and the fifth pneumatic ball valve A13. By monitoring pressure changes in real time, the system can respond quickly and take measures, such as automatically adjusting the valves or issuing alarms, thereby improving the system's response speed and safety.

[0026] One-way valve A5 controls the second conducting ball valve A8 to conduct unidirectionally towards the second maintenance ball valve A3; one-way valve A5 prevents gas backflow, ensuring the accuracy and safety of the detection process.

[0027] The control module K1 controls the status of the first pneumatic ball valve A2, the second pneumatic ball valve A4, the third pneumatic ball valve A7, the fourth pneumatic ball valve A10, the fifth pneumatic ball valve A13 and the odor emitting device C1. Through centralized control, operators can easily adjust and monitor the operating status of the entire system, reducing operational complexity and improving operational convenience and system reliability.

[0028] Working Principle: Continuous Detection Mode (Odor Agent Has No Impact on Users at the End of the Pipeline): In this mode, odor agent is continuously emitted from the pipeline to be monitored. First maintenance ball valve A1, first pneumatic ball valve A2, second maintenance ball valve A3, third maintenance ball valve A12, fifth pneumatic ball valve A13, and fourth maintenance ball valve A14 remain open; second pneumatic ball valve A4, third pneumatic ball valve A7, second conducting ball valve A8, and third conducting ball valve A9 remain open; first conducting ball valve A6, fourth pneumatic ball valve A10, and fourth conducting ball valve A11 are closed. The odor agent is emitted by odor emission device C1 and mixes with the medium passing through second pneumatic ball valve A4. Utilizing the siphon effect, the mixed gas sequentially flows through third pneumatic ball valve A7, second conducting ball valve A8, and check valve A5 into the main pipe. When the pipeline to be monitored is not properly sealed, the gas containing the odor agent leaks from the pipeline, which will be detected by sensors or inspection personnel, triggering an immediate warning.

[0029] Intermittent detection mode (odorant has no impact on end-users of the pipeline but economic operation is considered): In this mode, odorant is emitted periodically or according to a set time period for the pipeline that needs to be monitored: When odorant is emitted: the first maintenance ball valve A1, the first pneumatic ball valve A2, the second maintenance ball valve A3, the third maintenance ball valve A12, the fifth pneumatic ball valve A13, and the fourth maintenance ball valve A14 remain open; the second pneumatic ball valve A4, the third pneumatic ball valve A7, the second conducting ball valve A8, and the third conducting ball valve A9 remain open; and the first conducting ball valve A6, the fourth pneumatic ball valve A10, and the fourth conducting ball valve A11 are closed. The odorant is emitted by the odor emission device C1 and mixes with the medium passing through the second pneumatic ball valve A4. Utilizing the siphon effect, the mixed gas flows sequentially through the third pneumatic ball valve A7, the second conducting ball valve A8, and the one-way valve A5 into the main pipe.

[0030] When emission stops: First maintenance ball valve A1, first pneumatic ball valve A2, second maintenance ball valve A3, third maintenance ball valve A12, fifth pneumatic ball valve A13, and fourth maintenance ball valve A14 remain open; second pneumatic ball valve A4 and third pneumatic ball valve A7 are closed; second conduction ball valve A8 and third conduction ball valve A9 remain open; first conduction ball valve A6, fourth pneumatic ball valve A10, and fourth conduction ball valve A11 remain closed; and odor emission device C1 stops emitting odorant.

[0031] Periodic testing mode (odorants affect end users):

[0032] When the odorant affects end users, initiate leak detection: Manually close the fourth maintenance ball valve A14; keep the first maintenance ball valve A1, first pneumatic ball valve A2, second maintenance ball valve A3, third maintenance ball valve A12, and fifth pneumatic ball valve A13 open; keep the second pneumatic ball valve A4, third pneumatic ball valve A7, second conducting ball valve A8, and third conducting ball valve A9 open; close the first conducting ball valve A6; and open the fourth pneumatic ball valve A10 and fourth conducting ball valve A11. The odorant is emitted by the odor emission device C1 and mixes with the medium passing through the second pneumatic ball valve A4. Utilizing the siphon effect, the mixed gas flows sequentially through the third pneumatic ball valve A7, the second conducting ball valve A8, and the check valve A5 into the main pipe, and is discharged to a safe position through the fourth pneumatic ball valve A10 at the end of the pipeline. When the pipeline under test is full of odorant and the pressure meets the requirements, the fourth pneumatic ball valve A10 closes, and leak detection is performed. Stop leak detection: Odor emission device C1 stops emitting odorant. First maintenance ball valve A1, first pneumatic ball valve A2, second maintenance ball valve A3, third maintenance ball valve A12, and fifth pneumatic ball valve A13 are opened. Second pneumatic ball valve A4, third pneumatic ball valve A7, second conduction ball valve A8, and third conduction ball valve A9 are closed. First conduction ball valve A6 remains closed. Fourth pneumatic ball valve A10 and fourth conduction ball valve A11 are opened until no odorant is emitted from the pipeline. Manually open fourth maintenance ball valve A14 and close fourth pneumatic ball valve A10 and fourth conduction ball valve A11.

[0033] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A gas leak detection device applied to an industrial pipeline, comprising a pipeline main body to be detected, characterized in that, A control module (K1) is provided on one side of the main body of the pipeline to be inspected. A first maintenance ball valve (A1) is provided at the beginning of the main body of the pipeline to be inspected. A first pneumatic ball valve (A2) is connected to one side of the first maintenance ball valve (A1). A first auxiliary mechanism is connected in parallel to the outside of the first pneumatic ball valve (A2). A second maintenance ball valve (A3) is provided on the other side of the first pneumatic ball valve (A2). A third maintenance ball valve (A12) is provided at the end of the main body of the pipeline to be inspected. A fifth pneumatic ball valve (A13) is provided on one side of the third maintenance ball valve (A12). A fourth maintenance ball valve (A14) is provided on the other side of the fifth pneumatic ball valve (A13). A second auxiliary mechanism is provided between the fifth pneumatic ball valve (A13) and the fourth maintenance ball valve (A14).

2. The gas leak detection device for industrial pipes as claimed in claim 1, wherein, The first auxiliary mechanism includes a second pneumatic ball valve (A4) and a third pneumatic ball valve (A7). The third pneumatic ball valve (A7) is connected in series on one side of the second pneumatic ball valve (A4), and a second conducting ball valve (A8) is connected in series on the other side of the third pneumatic ball valve (A7). A one-way valve (A5) is connected in series on the other side of the second conducting ball valve (A8). An odor emitting device (C1) is provided on one side of the second pneumatic ball valve (A4) and the third pneumatic ball valve (A7). The odor emitting device (C1) is connected to the second pneumatic ball valve (A4) and the third pneumatic ball valve (A7) by a third conducting ball valve (A9). A first conducting ball valve (A6) is connected in parallel on one side of the third conducting ball valve (A9).

3. The gas leak detection device for industrial pipes as claimed in claim 2, wherein, The second auxiliary mechanism includes a fourth pneumatic ball valve (A10) and a fourth conducting ball valve (A11), which are connected in series. The other end of the fourth conducting ball valve (A11) is connected to the intermediate pipe of the fifth pneumatic ball valve (A13) and the fourth maintenance ball valve (A14).

4. The gas leak detection device for industrial pipes as claimed in claim 3, wherein, A first pressure sensor (P1) is installed between the first pneumatic ball valve (A2) and the second maintenance ball valve (A3), and a second pressure sensor (P2) is installed between the third maintenance ball valve (A12) and the fifth pneumatic ball valve (A13).

5. The gas leak detection device for industrial pipes as claimed in claim 4, wherein, The one-way valve (A5) controls the second conducting ball valve (A8) to conduct unidirectionally towards the second maintenance ball valve (A3).

6. The gas leak detection device for industrial pipes as claimed in claim 5, wherein, The control module (K1) controls the status of the first pneumatic ball valve (A2), the second pneumatic ball valve (A4), the third pneumatic ball valve (A7), the fourth pneumatic ball valve (A10), the fifth pneumatic ball valve (A13), and the odor emitting device (C1).

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