Liquefied natural gas pipeline interface leakage detection device

Abstract

The invention relates to the technical field of natural gas leakage detection processing, in particular to a liquefied natural gas pipeline connector leakage detection device which comprises a gas collection part used for being connected with a natural gas pipeline connector, and the gas collection part is connected with a supporting structure and conveys collected gas to a detection alarm located on the supporting structure. When natural gas is detected by the detection alarm, an alarm is given; the gas collecting part comprises a sleeving structure sleeving the natural gas pipeline, the sleeving structure forms an annular cavity used for covering a pipeline connector, and a detection opening of the detection alarm communicates with the annular cavity and is used for detecting the concentration of natural gas in the annular cavity. According to the device, the pipeline connector is wrapped and matched through the gas collecting part, natural gas leaked from the pipeline connector is collected and detected, the detection precision and accuracy can be improved, and slight leakage can also be detected; and a sleeving structure formed by the gas collecting part is matched with the pipeline, so that the disassembly is convenient, and the use convenience of the detection device is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of natural gas leakage detection and processing, and in particular to a liquefied natural gas pipeline interface leakage detection device. Background Art

[0002] When liquefied natural gas is used at home, its pipelines are mostly connected by threaded connections. In order to avoid natural gas leakage at the pipeline interface and cause safety accidents, most people choose to use a natural gas pipeline interface leak detection device to detect the interface. However, the existing methods for natural gas pipeline leak detection are mostly to directly install a natural gas alarm on the top of the natural gas pipeline, and detect it through the alarm probe in the natural gas alarm. However, when natural gas leaks, it will not only float upward, but also diffuse into the surrounding air, resulting in a low natural gas content in the air. When the content is low, the probe cannot perform accurate detection, so that the detection accuracy of the detection device is low, and when a small amount of natural gas leaks at the natural gas pipeline interface, it cannot be detected, which will pose certain safety hazards.

[0003] Therefore, the current technical status quo should be solved through technological innovation to improve the precision and accuracy of natural gas leak detection. This innovative achievement can be applied to actual detection operations. It has a simple structure and is easy to use. It can solve many pipeline leak detection problems in a simple way. A more reasonable technical solution should be proposed to solve the technical problems existing in the existing technology. Summary of the invention

[0004] In order to overcome at least one of the defects mentioned above, the present invention proposes a liquefied natural gas pipeline interface leakage detection device, which performs targeted sealing performance testing on the connection port of the natural gas pipeline to ensure that even slight leakage at the connection port can be detected and an alarm can be issued, thereby improving the accuracy of natural gas pipeline leakage detection and eliminating the safety hazards of natural gas leakage.

[0005] In order to achieve the above purpose, the detection device disclosed in the present invention can adopt the following technical solutions:

[0006] A liquefied natural gas pipeline interface leakage detection device includes a gas collecting part for connecting to the natural gas pipeline interface, the gas collecting part is connected to a supporting structure and transmits the collected gas to a detection alarm located on the supporting structure, and an alarm is issued when the detection alarm detects natural gas; the gas collecting part includes a sleeve structure sleeved on the natural gas pipeline, the sleeve structure forms an annular cavity for covering the pipeline interface, and the detection port of the detection alarm is connected to the annular cavity and is used to detect the natural gas concentration in the annular cavity.

[0007] The leak detection device disclosed above wraps the pipeline interface through the gas collection part. If there is a leak at the pipeline interface, the gas will gather in the annular cavity, which is convenient for the detection alarm to detect and alarm. In this way, it is possible to detect and alarm for trace leaks, improve the accuracy of detection, and reduce safety hazards. Similarly, the device can be set at any position where a leak may occur in the pipeline for detection, which is convenient and quick to use.

[0008] Furthermore, the sleeve structure can be constructed in a variety of forms, and the specific structure is not limited to a single one. Here, an optimization is made and one of the feasible options is proposed: the sleeve structure includes an arc-shaped gusset plate that fits the natural gas pipeline, and a wrapping piece is connected to the arc-shaped gusset plate. When the wrapping piece cooperates with the arc-shaped gusset plate to wrap the natural gas pipeline, the annular cavity is located on the inner side of the annular wrapping structure formed by the wrapping piece and the arc-shaped gusset plate. When such a solution is adopted, a sealing structure is formed at the joint of the wrapping piece and the arc-shaped gusset plate, and the wrapping piece forms a flipping structure relative to the arc-shaped gusset plate, so that it can be quickly installed and disassembled at the position of the pipeline to be detected. At the same time, the wrapping piece can be flipped open from the arc-shaped gusset plate, so as to quickly cooperate with the pipeline, thereby improving the convenience of use.

[0009] Furthermore, the wrapping piece and the arc-shaped gusset plate can be matched to form a sleeve structure through a variety of schemes, which are not limited to the only one. Here, an optimization is made and one of the feasible options is proposed: the wrapping piece includes a flip gusset plate, and the flip gusset plate and the arc-shaped gusset plate cooperate with each other to form a circular sleeve structure and sleeve on the natural gas pipeline. When such a scheme is adopted, the flip gusset plate can be an arc-shaped plate, and the arc-shaped plate can be a 180° plate, and the arc-shaped gusset plate also adopts 180° to form a butt joint; or the angle of the arc-shaped plate is constructed as other angles, and the number of arc-shaped plates is set to two, and the arc-shaped gusset plates are combined to form a sleeve structure.

[0010] Furthermore, in some other solutions, other forms of elastic sheet structures can be used. Here, one feasible option is proposed: the wrapping member includes an elastic sheet, one side of the elastic sheet is connected to the arc-shaped gusset plate, the elastic sheet undergoes elastic deformation to wrap the natural gas pipe, and cooperates with the arc-shaped gusset plate to form a sleeve structure. When such a solution is adopted, the elastic sheet can be a metal sheet, and the deformation characteristics of the metal sheet can be used to achieve automatic fitting and wrapping, which is simple and quick to use.

[0011] Furthermore, in order to improve the sealing performance and reduce the potential safety hazard caused by static electricity carried by metal parts, the structure of the arc-shaped gusset plate and the elastic sheet is optimized, and one feasible option is proposed here: the surfaces of the arc-shaped gusset plate and the elastic sheet are coated with a rubber coating. When such a solution is adopted, the rubber coating can play the role of insulation and shock absorption.

[0012] Furthermore, in the present invention, in order to form an annular cavity, the structure of the arc-shaped gusset plate and the elastic sheet is optimized, and one feasible option is given here: the inner surface of the arc-shaped gusset plate and the elastic sheet is provided with a sealing strip, and after the sealing strip forms a sleeve structure, it forms a sealing ring. When such a solution is adopted, the sealing strip is made of sealing rubber.

[0013] Furthermore, when connecting the detection alarm, the structure of the arc-shaped gusset plate is adjusted and optimized, and one feasible option is proposed here: the arc-shaped gusset plate is provided with a plurality of connecting ports, which are connected to the detection port of the detection alarm through a connecting pipe. When such a solution is adopted, a sealing structure is provided at the connection between the connecting port and the connecting pipe.

[0014] Furthermore, the detection alarm can be configured in a variety of ways to achieve gas connectivity detection, which is not limited to the only one. Here, an optimization is made and one feasible option is proposed: the detection alarm is connected to the support structure through a fixed frame, and the fixed frame includes a socket for socketing and fixing the detection alarm. When such a solution is adopted, the socket can be a binding belt, elastic rubber band, etc.

[0015] Furthermore, the connection direction between the detection alarm and the gas collection part is not limited to a single one. Here, an optimization is made and a feasible option is proposed: the communication port is set at the top of the arc-shaped gusset plate, and the communication pipe is connected and matched with the communication port to form a rigid structure. When such a solution is adopted, a sealing structure is set at the communication pipe and the communication port.

[0016] Furthermore, when setting up a detection alarm for monitoring, its setting structure can adopt various forms. In order to improve the accuracy of detection, optimization is made here and one feasible option is proposed: the detection probe of the detection alarm extends into the connecting pipe. When such a solution is adopted, the detection probe is located in the middle of the connecting pipe.

[0017] Compared with the prior art, some beneficial effects of the technical solution disclosed in the present invention include:

[0018] The present invention wraps and cooperates with the pipeline interface through the gas collection part, collects and detects the natural gas leaking at the pipeline interface, can improve the detection precision and accuracy, and can also detect slight leaks; and the sleeve structure formed by the gas collection part is easy to disassemble with the pipeline, which improves the convenience of using the detection device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only represent some embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 This is a schematic diagram of the overall structure of the leakage detection device, in which the gas collection part is unfolded.

[0021] Figure 2 This is a schematic diagram of the overall structure of the leakage detection device. In this state, the gas collection part is curled to form a sleeve structure.

[0022] Figure 3 It is a schematic diagram of the structure of the arc-shaped gusset plate and the wrapping piece, in which the wrapping piece is unfolded.

[0023] Figure 4 It is a schematic diagram of the structure of the arc-shaped gusset plate and the wrapping piece, in which the wrapping piece is curled.

[0024] In the above drawings, the meanings of the various marks are as follows:

[0025] 1. Detection alarm; 2. Fixed frame; 3. Socket; 4. Connecting pipe; 5. Arc-shaped gusset plate; 51. Connecting port; 6. Package. DETAILED DESCRIPTION

[0026] The present invention will be further explained below in conjunction with the accompanying drawings and specific embodiments.

[0027] In view of the relatively poor detection accuracy and poor detection reliability of natural gas leak detection devices in the prior art, the following embodiments are optimized and solve the defects in the prior art.

[0028] Example

[0029] like Figure 1 to Figure 4 As shown, this embodiment discloses a liquefied natural gas pipeline interface leakage detection device, including a gas collecting part for connecting to the natural gas pipeline interface, the gas collecting part is connected to a supporting structure and transmits the collected gas to a detection alarm 1 located on the supporting structure, and an alarm is issued when the detection alarm 1 detects natural gas; the gas collecting part includes a socket structure socketed on the natural gas pipeline, the socket structure forms an annular cavity for covering the pipeline interface, and the detection port of the detection alarm 1 is connected to the annular cavity and is used to detect the natural gas concentration in the annular cavity.

[0030] The leak detection device disclosed above wraps the pipeline interface through the gas collection part. If there is a leak at the pipeline interface, the gas will gather in the annular cavity, which is convenient for the detection alarm 1 to detect and alarm. In this way, it is possible to detect and alarm even a small amount of leakage, improve the accuracy of detection, and reduce safety hazards. Similarly, the device can also be set at any position where leakage may occur in the pipeline for detection, which is convenient and quick to use.

[0031] In this embodiment, the sleeve structure can be constructed in a variety of forms, and the specific structure is not limited to a single form. This embodiment is optimized and adopts one of the feasible options: the sleeve structure includes an arc-shaped gusset plate 5 that fits the natural gas pipeline, and a wrapping member 6 is connected to the arc-shaped gusset plate 5. When the wrapping member 6 cooperates with the arc-shaped gusset plate 5 to wrap the natural gas pipeline, the annular cavity is located on the inner side of the annular wrapping structure formed by the wrapping member 6 and the arc-shaped gusset plate 5. When such a solution is adopted, a sealing structure is formed at the joint of the wrapping member 6 and the arc-shaped gusset plate 5, and the wrapping member 6 forms a flipping structure relative to the arc-shaped gusset plate 5, so that it can be quickly installed and disassembled at the position of the pipeline to be detected. At the same time, the wrapping member 6 can be flipped open from the arc-shaped gusset plate 5, so as to quickly form a match with the pipeline, which is convenient for improving the convenience of use.

[0032] The wrapping member 6 and the arc-shaped gusset plate 5 can be matched to form a sleeve structure through a variety of schemes, which are not limited to the only one. This embodiment optimizes and proposes one feasible option: the wrapping member 6 includes a flip gusset plate (not shown in the figure), and the flip gusset plate and the arc-shaped gusset plate 5 cooperate with each other to form a circular sleeve structure and sleeve on the natural gas pipeline. When such a scheme is adopted, the flip gusset plate can be a curved plate, and the curved plate can be a 180° plate, and the curved gusset plate 5 also uses 180° to form a butt joint; or the angle of the curved plate is constructed as other angles, and the number of curved plates is set to two, and the curved gusset plate 5 is combined to form a sleeve structure.

[0033] In some embodiments, other forms of elastic sheet structures may be used. This embodiment adopts one of the feasible options: the wrapping member 6 includes an elastic sheet, one side of the elastic sheet is connected to the arc-shaped gusset plate 5, the elastic sheet undergoes elastic deformation to wrap the natural gas pipe, and cooperates with the arc-shaped gusset plate 5 to form a sleeve structure. When such a solution is adopted, the elastic sheet can be a metal sheet, and the deformation characteristics of the metal sheet can be used to achieve automatic fitting and wrapping, which is simple and quick to use.

[0034] In order to improve the sealing performance and reduce the potential safety hazard caused by static electricity carried by metal parts, the structure of the arc gusset plate 5 and the elastic sheet is optimized. This embodiment adopts one of the feasible options: the surfaces of the arc gusset plate 5 and the elastic sheet are coated with a rubber coating. When such a solution is adopted, the rubber coating can play the role of insulation and shock absorption.

[0035] In this embodiment, in order to form an annular cavity, the structure of the arc-shaped gusset plate 5 and the elastic sheet is optimized, and this embodiment adopts one of the feasible options: the inner surface of the arc-shaped gusset plate 5 and the elastic sheet is provided with a sealing strip, and the sealing strip forms a sealing ring after forming a sleeve structure. When such a solution is adopted, the sealing strip is made of sealing rubber.

[0036] When connecting the detection alarm 1, the structure of the arc-shaped gusset plate 5 is adjusted and optimized. This embodiment adopts one of the feasible options: the arc-shaped gusset plate 5 is provided with a plurality of communication ports 51, which are connected with the detection port of the detection alarm 1 through the communication pipe 4. When such a solution is adopted, a sealing structure is provided at the connection between the communication port 51 and the communication pipe 4.

[0037] The setting mode of the detection alarm 1 can be constructed in various forms to achieve the purpose of gas connectivity detection, which is not limited to the only one. This embodiment is optimized and adopts one of the feasible options: the detection alarm 1 is connected to the support structure through a fixed frame 2, and the fixed frame 2 includes a socket 3 for socketing and fixing the detection alarm 1. When such a solution is adopted, the socket 3 can be a binding belt, elastic rubber band, etc.

[0038] The connection direction between the detection alarm 1 and the gas collection part is not limited to a single one. This embodiment is optimized and adopts one of the feasible options: the communication port 51 is set at the top of the arc-shaped gusset plate 5, and the communication pipe 4 is connected and matched with the communication port 51 to form a rigid structure. When such a solution is adopted, a sealing structure is set at the communication pipe 4 and the communication port 51.

[0039] When the detection alarm 1 is set for monitoring, its setting structure can be adopted in various forms. In order to improve the accuracy of detection, this embodiment is optimized and adopts one of the feasible options: the detection probe of the detection alarm 1 extends into the connecting pipe 4. When such a solution is adopted, the detection probe is located in the middle of the connecting pipe 4.

[0040] The above are the implementation methods listed in this embodiment, but this embodiment is not limited to the above optional implementation methods. Those skilled in the art can arbitrarily combine the above methods to obtain other various implementation methods. Anyone can derive other various implementation methods under the inspiration of this embodiment. The above specific implementation methods should not be understood as limiting the protection scope of this embodiment. The protection scope of this embodiment should be based on the definition in the claims.

Claims

1. A liquefied natural gas pipeline interface leakage detection device, characterized in that: The invention comprises a gas collecting part for connecting to a natural gas pipeline interface, the gas collecting part is connected to a supporting structure and transmits the collected gas to a detection alarm (1) located on the supporting structure, and an alarm is issued when the detection alarm (1) detects natural gas; the gas collecting part comprises a sleeve structure sleeved on the natural gas pipeline, the sleeve structure forms an annular cavity for covering the pipeline interface, and the detection port of the detection alarm (1) is connected to the annular cavity and is used to detect the concentration of natural gas in the annular cavity.

2. The liquefied natural gas pipeline interface leakage detection device according to claim 1, characterized in that: The sleeve structure comprises an arc-shaped gusset plate (5) that fits the natural gas pipeline, and a wrapping piece (6) is connected to the arc-shaped gusset plate (5). When the wrapping piece (6) cooperates with the arc-shaped gusset plate (5) to wrap the natural gas pipeline, the annular cavity is located on the inner side of the annular wrapping structure formed by the wrapping piece (6) and the arc-shaped gusset plate (5).

3. The liquefied natural gas pipeline interface leakage detection device according to claim 2, characterized in that: The wrapping piece (6) comprises a flip buckle plate, which cooperates with the arc buckle plate (5) to form a circular sleeve structure and is sleeved on the natural gas pipeline.

4. The liquefied natural gas pipeline interface leakage detection device according to claim 2, characterized in that: The wrapping member (6) comprises an elastic sheet, one side of which is connected to the arc-shaped buckle plate (5). The elastic sheet undergoes elastic deformation to wrap the natural gas pipe and cooperates with the arc-shaped buckle plate (5) to form a sleeve structure.

5. The liquefied natural gas pipeline interface leakage detection device according to claim 4, characterized in that: The surfaces of the arc-shaped gusset plate (5) and the elastic sheet are both coated with a rubber coating.

6. The liquefied natural gas pipeline interface leakage detection device according to claim 4, characterized in that: The inner surfaces of the arc-shaped buckle plate (5) and the elastic sheet are provided with sealing strips, and after the sealing strips cooperate to form a sleeve structure, they form a sealing ring.

7. The liquefied natural gas pipeline interface leakage detection device according to any one of claims 2 to 4, characterized in that: The arc-shaped gusset plate (5) is provided with a plurality of communication ports (51) which are connected to the detection port of the detection alarm (1) through a communication pipe (4).

8. The liquefied natural gas pipeline interface leakage detection device according to any one of claims 1 to 4, characterized in that: The detection alarm (1) is connected to the supporting structure via a fixed frame (2), and the fixed frame (2) comprises a socket (3) for socketing and fixing the detection alarm (1).

9. The liquefied natural gas pipeline interface leakage detection device according to claim 7, characterized in that: The communication port (51) is arranged at the top of the arc-shaped buckle plate (5), and the communication pipe (4) is connected and matched with the communication port (51) to form a rigid structure.

10. The liquefied natural gas pipeline interface leakage detection device according to claim 9, characterized in that: The detection probe of the detection alarm (1) extends into the connecting pipe (4).

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