Gas leakage detection device for gas pipeline

Abstract

The utility model provides a gas leakage detection device for a gas pipeline, which comprises a detection pool and an accommodating cavity formed on the detection pool, the two lifting seats are arranged on the detection pool in a bilateral symmetry mode and located in the containing cavity; the lifting open holes are formed in the lifting seats; the left lifting plate and the right lifting plate are arranged on the two lifting seats in a lifting mode and located in the lifting open holes respectively; the compression springs are arranged between the lower ends of the left lifting plate and the right lifting plate and the lifting seats respectively; the transverse plate is transversely arranged on the upper end face of the left lifting plate and the upper end face of the right lifting plate, the air inlet pipe is arranged on the right lifting plate, the air outlet pipe is arranged on the left lifting plate, the moving device is arranged between the air outlet pipe and the left lifting plate and used for driving the air outlet pipe to transversely move on the left lifting plate, and the sealing protruding rings are arranged on the air inlet pipe and the air outlet pipe correspondingly. The gas inlet main pipe and the gas outlet main pipe are respectively arranged at the left end and the right end of the detection pool, and the gas inlet connecting pipe is arranged between the gas inlet main pipe and the gas inlet pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of gas pipelines, in particular to a gas pipeline leakage detection device. Background Art

[0002] Gas pipelines are pipe systems used to transport gas, primarily consisting of steel and polyethylene pipes, and are used to transport natural gas, manufactured coal gas, and other fuels. Gas pipelines can deliver natural gas extracted from underground or produced in factories to consumers through pipelines. This type of pipeline system requires specialized production, pipeline construction, and gas transportation technology and management.

[0003] Chinese patent number CN202023043448.1 discloses a gas pipeline leak detection device, comprising a lifting mechanism, a first clamping mechanism, a second clamping mechanism, a detection cell, an air inlet pipe, and an air outlet pipe; the detection cell is mounted on the lifting mechanism; the fixed end of the first clamping mechanism and the fixed end of the second clamping mechanism are relatively arranged on the first side and the second side of the detection cell; the clamping end of the first clamping mechanism and the clamping end of the second clamping mechanism can both be positioned below the liquid level of the detection cell; the air inlet pipe and the air outlet pipe are respectively mounted on the first side and the second side; one end of the air inlet pipe and one end of the air outlet pipe are both positioned within the detection cell, and the other ends of the air inlet pipe and the other ends of the air outlet pipe are both positioned outside the detection cell; one end of the air inlet pipe is positioned within the clamping end of the first clamping mechanism; one end of the air outlet pipe is positioned within the clamping end of the second clamping mechanism. The utility model replaces manual hand-held gas pipes by two clamping mechanisms, reducing the difficulty of detection and improving the accuracy of the detection results.

[0004] Although the aforementioned patent allows the gas pipeline to be placed in soapy water for leak detection, since the inlet and outlet pipes are below the liquid level of the detection tank, when installing the gas pipeline between the inlet and outlet pipes, the gas pipeline needs to be immersed in soapy water before installation. At this time, the soapy water in the detection tank can easily enter the gas pipeline, causing the inner wall of the pipeline to become wet and increasing the probability of rust. Utility Model Content

[0005] The purpose of the utility model is to provide a gas pipeline leakage detection device to address the defects and shortcomings of the existing technology.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a gas pipeline leakage detection device, comprising a detection pool, a accommodating cavity formed on the detection pool, and also comprising two lifting seats symmetrically arranged on the detection pool and located in the accommodating cavity, a lifting opening formed on each of the lifting seats, a left lifting plate and a right lifting plate respectively liftable and arranged on the two lifting seats and located in the lifting openings, compression springs respectively arranged between the lower ends of the left lifting plate and the right lifting plate and the lifting seats, a transverse plate transversely arranged on the upper end surfaces of the left lifting plate and the right lifting plate, an air inlet pipe arranged on the right lifting plate, an air outlet pipe arranged on the left lifting plate, and a valve arranged between the air outlet pipe and the left lifting plate. The cam is connected with the air inlet pipe and the air outlet pipe to form an air intake pipe, an air intake pipe and an air outlet pipe, and the like. The cam is connected with the air inlet pipe and the air outlet pipe to form an air intake pipe. The cam is connected with the air inlet pipe and the air outlet pipe to form an air intake pipe. The cam is connected with the air outlet pipe and the air outlet pipe to form an air intake pipe.

[0007] Further improvements are: the moving device includes a movable opening formed on the left lifting plate for allowing the air outlet pipe to move horizontally on the lifting plate, a left fixed plate provided on the air outlet pipe and located on the left side of the left lifting plate, a tension spring provided between the right end of the left fixed plate and the left end of the left lifting plate, and a right fixed plate provided on the air outlet pipe and located on the right side of the left lifting plate.

[0008] A further improvement is that the sealing convex ring is an arc convex ring, and the sealing convex ring is a rubber convex ring or a silicone convex ring.

[0009] A further improvement is that the air inlet connecting pipe and the air outlet connecting pipe are both PVC hoses or PE corrugated pipes.

[0010] After adopting the above technical solution, the beneficial effects of the utility model are as follows: when the gas pipeline is installed between the air inlet pipe and the air outlet pipe, the left end of the gas pipeline is first inserted into the air outlet pipe, and then the air outlet pipe is driven to move horizontally on the left lifting plate by the moving device, so that the right end of the gas pipeline is inserted into the air inlet pipe, and the gaps between the air inlet pipe and the air outlet pipe and the gas pipeline can be sealed by the sealing convex ring, and then the transverse plate is pressed downward to drive the left lifting plate and the right lifting plate to descend synchronously, and the compression spring is gradually compressed to generate elastic potential energy, thereby driving the gas pipeline to be immersed in soapy water, and pushing the second limiting plate to drive the second limiting sleeve to rotate on the fixed column until the second limiting plate limits the upward movement of the transverse plate;

[0011] When the gas pipeline needs to be removed or replaced from the air inlet pipe and the air outlet pipe, the second limit plate is pushed to drive the second limit sleeve to rotate on the fixed column until the second limit plate no longer restricts the upward movement of the transverse plate. At this time, the compression spring releases elastic potential energy to push the left lifting plate and the right lifting plate up respectively until the upper end surface of the transverse plate abuts against the lower end surface of the first limit plate. At this time, the gas pipeline is located above the detection soapy water. During the installation and disassembly of the gas pipeline, there is no need to immerse the gas pipeline in soapy water, which can prevent the soapy water in the detection pool from entering the gas pipeline, and it is not easy to cause the inner wall of the pipeline to get wet, thereby increasing the probability of rust.

[0012] Further effect: When the air inlet pipe and the air outlet pipe rise and fall in the accommodating cavity along with the two lifting plates, the connection state of the air inlet pipe and the air outlet pipe can be maintained through the air inlet connecting pipe and the air outlet connecting pipe. The gas is input from the air inlet main pipe and enters the gas pipeline from the air inlet pipe through the air inlet connecting pipe. The gas is then discharged from the air outlet pipe through the air outlet connecting pipe to the air outlet main pipe.

[0013] Further effect: During the installation process, the left end of the gas pipeline is inserted into the outlet pipe and abuts the right end of the right fixed plate. At this time, force is applied to the gas pipeline to the left to make the outlet pipe move to the left on the movable opening. At this time, the tension spring is gradually stretched and elastically deformed until the right end of the gas pipeline is connected to the air inlet pipe. At this time, the tension spring releases its elastic force to push the gas pipeline against the left side of the right lifting plate, thereby fixing the gas pipeline on the air inlet pipe and the air outlet pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0015] Figure 1 It is a structural diagram of the utility model;

[0016] Figure 2 It is a top view of the utility model;

[0017] Figure 3 It corresponds to Figure 1 Magnified view of part A.

[0018] Explanation of the accompanying symbols: detection pool 1, accommodating chamber 2, lifting seat 3, lifting opening 4, left lifting plate 5, right lifting plate 6, compression spring 7, transverse plate 8, air inlet pipe 9, air outlet pipe 10, sealing convex ring 11, air inlet main pipe 12, air outlet main pipe 13, air inlet connecting pipe 14, air outlet connecting pipe 15, fixed column 16, first limit plate 17, rotating sleeve 18, second limit plate 19, movable opening 20, left fixed plate 21, tension spring 22, right fixed plate 23. DETAILED DESCRIPTION

[0019] The present invention will now be further described with reference to the accompanying drawings and specific embodiments.

[0020] See Figures 1 to 3 As shown, the technical solution adopted in this specific embodiment is: a gas pipeline leakage detection device, including a detection pool 1, a accommodating cavity 2 formed on the detection pool 1, and also including two lifting seats 3 symmetrically arranged on the detection pool 1 and located in the accommodating cavity 2, a lifting opening 4 opened on each of the lifting seats 3, a left lifting plate 5 and a right lifting plate 6 respectively liftable and arranged on the two lifting seats 3 and located in the lifting opening 4, a compression spring 7 respectively arranged between the lower ends of the left lifting plate 5 and the right lifting plate 6 and the lifting seat 3, a transverse plate 8 transversely arranged on the upper end surfaces of the left lifting plate 5 and the right lifting plate 6, an air inlet pipe 9 arranged on the right lifting plate 6, an air outlet pipe 10 arranged on the left lifting plate 5, and a spring arranged between the air outlet pipe 10 and the left lifting plate 5 for driving the air outlet pipe 10 to move between the left and right lifting plates The lifting plate 5 includes a laterally movable device, a sealing convex ring 11 provided on the air inlet pipe 9 and the air outlet pipe 10, an air inlet main pipe 12 and an air outlet main pipe 13 provided on the left and right ends of the detection cell 1, an air inlet connecting pipe 14 provided between the air inlet main pipe 12 and the air inlet pipe 9, an air outlet connecting pipe 15 provided between the air outlet main pipe 13 and the air outlet main pipe 13, two fixed columns 16 provided on the upper end surface of the detection cell 1 and symmetrically provided on the left and right sides of the transverse plate 8, a first limiting plate 17 provided on the fixed columns 16, a rotating sleeve 18 rotatably provided on the fixed columns 16 and located below the first limiting plate 17, and a second limiting plate 19 provided on the rotating sleeve 18. The air inlet pipe 9 and the air outlet pipe 10 are maintained in the same horizontal plane. The air inlet pipe 9 and the air outlet pipe 10 are rigid or plastic pipes. The rotating sleeve 18 is rotatably provided on the fixed column 16 via a bearing or groove.

[0021] The movement device includes a movable opening 20 formed in the left lift plate 5 for lateral movement of the outlet pipe 10 on the lift plate; a left fixed plate 21 disposed on the outlet pipe 10 to the left of the left lift plate 5; a tension spring 22 disposed between the right end of the left fixed plate 21 and the left end of the left lift plate 5; and a right fixed plate 23 disposed on the outlet pipe 10 to the right of the left lift plate 5. A space is defined between the right fixed plate 23 and the right end surface of the left lift plate 5 to allow the right fixed plate 23 to move leftward. This space is greater than the length of the intake pipe 9 extending from the left end of the right lift plate 6.

[0022] The sealing convex ring 11 is an arc convex ring, and the sealing convex ring 11 is a rubber convex ring or a silicone convex ring.

[0023] The air inlet connecting pipe 14 and the air outlet connecting pipe 15 are both PVC hoses or PE corrugated pipes.

[0024] The working principle of the present invention is as follows: when installing the gas pipeline between the air inlet pipe 9 and the air outlet pipe 10, the left end of the gas pipeline is first inserted into the air outlet pipe 10 and abutted against the right end of the right fixing plate 23. At this time, force is applied to the gas pipeline to the left to make the air outlet pipe 10 move to the left on the movable opening 20. At this time, the tension spring 22 is gradually stretched to produce elastic deformation until the right end of the gas pipeline is connected to the air inlet pipe 9. At this time, the tension spring 22 releases its elastic potential to push the gas pipeline against the left side of the right lifting plate 6, thereby fixing the gas pipeline to the air inlet pipe. 9 and the outlet pipe 10, and the gap between the inlet pipe 9 and the outlet pipe 10 and the gas pipeline can be sealed by the sealing convex ring 11. Then, the horizontal plate 8 is pressed downward to drive the left lifting plate 5 and the right lifting plate 6 to descend synchronously. The compression spring 7 is gradually compressed to generate elastic potential energy, thereby driving the gas pipeline to be immersed in the soapy water, and pushing the second limiting plate 19 to drive the second limiting sleeve to rotate on the fixed column 16 until the second limiting plate 19 limits the upward movement of the horizontal plate 8. The gas in the gas pipeline is input into the soapy water for gas leakage detection;

[0025] When it is necessary to remove or replace the gas pipeline from the air inlet pipe 9 and the air outlet pipe 10, push the second limit plate 19 to drive the second limit sleeve to rotate on the fixing column 16 until the second limit plate 19 no longer restricts the upward movement of the transverse plate 8. At this time, the compression spring 7 releases its elastic potential energy to push the left lifting plate 5 and the right lifting plate 6 up respectively until the upper end surface of the transverse plate 8 abuts against the lower end surface of the first limit plate 17. At this time, the gas pipeline is located above the detection soapy water. During the installation and removal process of the gas pipeline, there is no need to immerse the gas pipeline in soapy water, which can prevent the soapy water in the detection pool 1 from entering the gas pipeline, and it is not easy to cause the inner wall of the pipeline to be wetted and increase the probability of rust;

[0026] When the air inlet pipe 9 and the air outlet pipe 10 are raised and lowered in the accommodating chamber 2 along with the two lifting plates, the air inlet connecting pipe 14 and the air outlet connecting pipe 15 can maintain the connection state of the air inlet pipe 9 and the air outlet pipe 10. The gas is input from the air inlet main pipe 12 and enters the gas pipeline from the air inlet pipe 9 through the air inlet connecting pipe 14. The gas is then discharged from the air outlet pipe 10 through the air outlet connecting pipe 15 to the air outlet main pipe 13.

[0027] This utility model protects the product's structure; the component models are not the subject of this utility model's protection and are generally known technology. Any commercially available component that can achieve the aforementioned functions of this utility model can be used as a gas pipeline leak detection device. Therefore, component models and other parameters are not detailed in this utility model. The contribution of this utility model lies in the scientific combination of the components.

[0028] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for illustrative purposes. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements shall fall within the scope of the present invention as claimed. The scope of protection claimed in the present invention shall be defined by the appended claims and their equivalents. Any details not described in the present invention are well known to those skilled in the art.

Claims

1. A gas pipeline leakage detection device, comprising a detection cell and a receiving cavity formed on the detection cell, characterized in that: The invention also includes two lifting seats symmetrically arranged on the detection pool and located in the accommodating cavity, a lifting opening opened on each of the lifting seats, a left lifting plate and a right lifting plate respectively arranged on the two lifting seats and located in the lifting opening, compression springs respectively arranged between the lower ends of the left lifting plate and the right lifting plate and the lifting seats, a transverse plate transversely arranged on the upper end surfaces of the left lifting plate and the right lifting plate, an air inlet pipe arranged on the right lifting plate, an air outlet pipe arranged on the left lifting plate, a moving device arranged between the air outlet pipe and the left lifting plate for driving the air outlet pipe to move transversely on the left lifting plate, and respectively arranged The sealing convex rings on the air inlet pipe and the air outlet pipe, the air inlet main pipe and the air outlet main pipe respectively arranged at the left and right ends of the detection pool, the air inlet connecting pipe arranged between the air inlet main pipe and the air inlet pipe, the air outlet connecting pipe arranged between the air outlet main pipe and the air outlet main pipe, two fixed columns arranged on the upper end surface of the detection pool and symmetrically arranged on the left and right sides of the transverse plate, a first limiting plate arranged on the fixed column, a rotating sleeve rotatably arranged on the fixed column and located below the first limiting plate, and a second limiting plate arranged on the rotating sleeve, the air inlet pipe and the air outlet pipe are maintained at the same horizontal plane, and the air inlet pipe and the air outlet pipe are rigid or plastic pipes.

2. A gas pipeline leakage detection device according to claim 1, characterized in that: The moving device includes a movable opening formed on the left lifting plate for allowing the air outlet pipe to move horizontally on the lifting plate, a left fixed plate provided on the air outlet pipe and located on the left side of the left lifting plate, a tension spring provided between the right end of the left fixed plate and the left end of the left lifting plate, and a right fixed plate provided on the air outlet pipe and located on the right side of the left lifting plate.

3. A gas pipeline leakage detection device according to claim 1, characterized in that: The sealing convex ring is an arc convex ring, and the sealing convex ring is a rubber convex ring or a silicone convex ring.

4. A gas pipeline leakage detection device according to claim 1, characterized in that: The air inlet connecting pipe and the air outlet connecting pipe are both PVC hoses or PE corrugated pipes.

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