Leakage detection device for natural gas pipeline installation

Abstract

The utility model discloses a leakage detection device for natural gas pipeline installation, which is characterized in that one end of a connecting sleeve is integrally connected with a top cover through a limiting ring pipe, a through groove is formed in the connecting sleeve, a pressure assembly penetrates through the through groove, a detection assembly is further arranged on one side of the pressure assembly in the top cover, and the detection assembly is matched with the pressure assembly to form a pressure detector. The device is connected to a pipeline or a valve in a sealed mode through the sealing threaded groove, if the pipeline or the valve leaks air at the moment, the air pressure in the through groove can be gradually increased, the sealing push head can be extruded, the sealing push head drives the movable pressing plate to move through the connecting rod, and when the movable pressing plate abuts against the circuit breaker, a battery in the battery box is powered on to form a circuit; the pressure display and the pressure sensor are connected, the pressure sensor converts the received pressure into a numerical value to be displayed through the pressure display, the leakage flow of the pipeline can be measured by detecting the leakage pressure increasing speed of the pipeline, and therefore technicians can conveniently conduct judgment so as to conduct rapid first-aid repair.

Description

Technical Field

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

[0002] Natural gas refers to a mixture of hydrocarbons and non-hydrocarbon gases naturally stored in the strata. In petroleum geology, it usually refers to oilfield gas and gasfield gas. It mainly exists in oil fields and natural gas fields, and a small amount is also found in coal seams. The main use of natural gas is as a fuel. It can be used to make carbon black, chemicals and liquefied petroleum gas. Propane and butane produced from natural gas are important raw materials for modern industry. As people pay more and more attention to the protection of the earth's environment, natural gas, with its unique pollution-free characteristics, has become an increasingly important traditional energy source.

[0003] In the long-distance transportation of natural gas, pipeline transportation is currently mostly adopted in my country. However, since natural gas transportation requires low temperature and high pressure, and it is flammable and explosive, it has high requirements for pipelines, so it is often necessary to conduct leak detection at the connection of pipelines. When natural gas enters households, leak detection is also required when installing pipelines to ensure safety of use.

[0004] Most of the current natural gas leak detection devices can only measure whether there is a leak, but cannot accurately measure the leaked gas volume. Technicians are required to conduct secondary inspections, which affects their emergency repairs. Utility Model Content

[0005] The purpose of the utility model is to solve the problems existing in the above-mentioned background technology and to propose a leakage detection device for natural gas pipeline installation.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technology: a leakage detection device for natural gas pipeline installation, including a connecting sleeve, one end of the connecting sleeve is integrally connected to a top cover through a limiting ring tube, a through groove is opened in the connecting sleeve, and a sealing thread groove is also provided inside the end of the connecting sleeve away from the limiting ring tube and connected to the through groove, a pressure assembly passes through the through groove, and a detection assembly is also provided in the top cover on one side of the pressure assembly, and the detection assembly cooperates with the pressure assembly to form a pressure gauge.

[0007] As a further description of the above-mentioned technology, a leakage detection device for natural gas pipeline installation is provided: the pressure assembly includes a fixed plate fixed inside a limiting ring tube, one end of the fixed plate is connected to a sealing push head via a connecting rod, the sealing push head slides sealingly in the through groove, and a first compression spring is provided around the outside of the connecting rod between the sealing push head and the fixed plate.

[0008] As a further description of the above-mentioned technology, a leakage detection device for natural gas pipeline installation is provided: an end of the connecting rod away from the sealing push head is connected to a movable pressure plate, and the movable pressure plate passes through the interior of the top cover.

[0009] As a further description of the above technology, a leakage detection device for natural gas pipeline installation: the detection component includes a mounting plate, the mounting plate is elastically connected to the inside of the top cover through a second compression spring, and a passage device is fixedly provided at the center of the inside of the mounting plate.

[0010] As a further description of the above technology, a leakage detection device for natural gas pipeline installation is provided: one end of the access device is connected to the pressure sensor through a third compression spring, the pressure sensor is embedded in the top of the top cover, and the pressure sensor is electrically connected to the pressure display, and the pressure display is fixed on the top of the top cover.

[0011] As a further description of the above-mentioned technology, a leakage detection device for natural gas pipeline installation is provided: a battery box is integrally provided on one side of the top cover, and a top cover is installed on the top of the battery box.

[0012] In summary, due to the use of the above-mentioned technology, a leakage detection device for natural gas pipeline installation has the following beneficial effects:

[0013] 1. In the utility model, when measurement is required, the device is sealed and connected to the pipeline or valve through the sealing threaded groove. At this time, if the pipeline or valve leaks, the air pressure in the through groove will gradually increase. When the pressure gradually exceeds the external atmospheric pressure, the sealing push head will be squeezed, so that the sealing push head drives the movable pressure plate to move through the connecting rod, which can make the movable pressure plate gradually approach the access device, and when the movable pressure plate abuts the access device, the battery in the battery box is energized to form a pathway, connecting the pressure display and the pressure sensor, and because the access device is elastically connected to the pressure sensor through the third compression spring, the pressure is transmitted to the pressure sensor through the third compression spring, and the pressure sensor converts the received pressure from the pressure display into a numerical display, thereby facilitating detection, and can detect the pressure increase rate of the pipeline leakage, measure the flow rate of the pipeline leakage, so as to facilitate the maintenance personnel to judge and carry out rapid repairs. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A stereogram (I) is shown according to an embodiment of the utility model;

[0015] Figure 2 Shows a stereogram (two) provided according to an embodiment of the utility model;

[0016] Figure 3 A half-section internal display diagram of a connecting sleeve and a top cover provided according to an embodiment of the utility model is shown.

[0017] Legend: 1. Connecting sleeve; 2. Limiting ring tube; 3. Top cover; 4. Battery box; 5. Top cover; 6. Through groove; 7. Sealing thread groove; 8. Sealing push head; 9. Connecting rod; 10. Fixed plate; 11. First compression spring; 12. Movable pressure plate; 13. Second compression spring; 14. Mounting plate; 15. Pass device; 16. Third compression spring; 17. Pressure sensor; 18. Pressure display. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technology in the embodiments of the utility model, a leakage detection device for natural gas pipeline installation. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-Figure 3 As shown, the utility model provides a technical solution: a leakage detection device for natural gas pipeline installation, comprising a connecting sleeve 1, one end of the connecting sleeve 1 is integrally connected to a top cover 3 through a limiting ring tube 2, one side of the top cover 3 is integrally provided with a battery box 4, a top cover 5 is installed on the top of the battery box 4, one end electrode in the battery box 4 is connected to the top center of the movable pressure plate 12, and the other end electrode is connected to a pressure sensor 17 and a pressure display 18, when the movable pressure plate 12 abuts against the access device 15, the circuit is energized, a through groove 6 is opened in the connecting sleeve 1, and a sealing thread groove 7 is also provided inside the end of the connecting sleeve 1 away from the limiting ring tube 2 and communicated with the through groove 6, the sealing thread groove can conveniently connect the natural gas pipeline, a pressure component runs through the through groove 6, the pressure component can be displaced by squeezing the sealing push head 8 when the air pressure changes, a detection component is also provided on one side of the pressure component in the top cover 3, the detection component cooperates with the pressure component to form a pressure gauge, and the pressure gauge can detect the internal air pressure after connecting the pipeline or valve.

[0020] For details, please refer to Figure 1-Figure 3As shown, the pressure assembly includes a fixed plate 10 fixed inside the limiting ring tube 2, one end of the fixed plate 10 is connected to a sealing push head 8 through a connecting rod 9, the sealing push head 8 slides in a sealed manner in the through groove 6, the outside of the connecting rod 9 is located between the sealing push head 8 and the fixed plate 10 and is surrounded by a first compression spring 11, the end of the connecting rod 9 away from the sealing push head 8 is connected to a movable pressure plate 12, the movable pressure plate 12 runs through the top cover 3, the detection assembly includes a mounting plate 14, the mounting plate 14 is elastically connected to the inside of the top cover 3 through a second compression spring 13, a passage device 15 is fixedly provided at the center of the mounting plate 14, one end of the passage device 15 is connected to a pressure sensor 17 through a third compression spring 16, the pressure sensor 17 is embedded in the top of the top cover 3, and the pressure sensor 17 is electrically connected to a pressure display 18, and the pressure display 18 is fixed to the top of the top cover 3.

[0021] In this embodiment, when measurement is required, the device is sealed and connected to the pipeline or valve through the sealing threaded groove 7. At this time, if the pipeline or valve leaks, the air pressure in the through groove 6 will gradually increase. When the pressure gradually exceeds the external atmospheric pressure, the sealing push head 8 will be squeezed, so that the sealing push head 8 drives the movable pressure plate 12 to move through the connecting rod 9, so that the movable pressure plate 12 can gradually approach the access device 15, and when the movable pressure plate 12 abuts against the access device 15, the battery in the battery box is energized to form a pathway, connecting the pressure display 18 and the pressure sensor 17, and because the access device 15 is elastically connected to the pressure sensor 17 through the third compression spring 16, the pressure is transmitted to the pressure sensor 17 through the third compression spring 16, and the pressure sensor 17 converts the received pressure from the pressure display 18 into a numerical display, thereby facilitating detection, and can detect the pressure increase rate of the pipeline leakage and measure the flow rate of the pipeline leakage, thereby facilitating maintenance personnel to make rapid repairs.

[0022] The above is only a preferred specific implementation method of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, according to the technical concept of the utility model of a leakage detection device for natural gas pipeline installation and the utility model, shall be equivalently replaced or changed, and shall be covered by the protection scope of the utility model.

Claims

1. A leakage detection device for natural gas pipeline installation, comprising a connecting sleeve (1), one end of the connecting sleeve (1) being integrally connected to a top cover (3) via a limiting ring tube (2), characterized in that: A through groove (6) is provided in the connecting sleeve (1), and a sealing thread groove (7) is provided inside the end of the connecting sleeve (1) away from the limiting ring tube (2) and connected to the through groove (6). A pressure component passes through the through groove (6), and a detection component is provided on one side of the pressure component in the top cover (3). The detection component cooperates with the pressure component to form a pressure measuring device.

2. A leakage detection device for natural gas pipeline installation according to claim 1, characterized in that: The pressure assembly comprises a fixed plate (10) fixed inside the limiting ring tube (2); one end of the fixed plate (10) is connected to a sealing push head (8) via a connecting rod (9); the sealing push head (8) slides in a sealed manner in the through groove (6); and a first compression spring (11) is arranged outside the connecting rod (9) and between the sealing push head (8) and the fixed plate (10).

3. A leakage detection device for natural gas pipeline installation according to claim 2, characterized in that: One end of the connecting rod (9) away from the sealing push head (8) is connected to a movable pressure plate (12), and the movable pressure plate (12) passes through the interior of the top cover (3).

4. A leakage detection device for natural gas pipeline installation according to claim 1, characterized in that: The detection assembly comprises a mounting plate (14), wherein the mounting plate (14) is elastically connected to the inside of the top cover (3) via a second compression spring (13), and a passage device (15) is fixedly provided at the center of the inside of the mounting plate (14).

5. A leakage detection device for natural gas pipeline installation according to claim 4, characterized in that: One end of the passage device (15) is connected to a pressure sensor (17) via a third compression spring (16); the pressure sensor (17) is embedded in the top of the top cover (3); and the pressure sensor (17) is electrically connected to a pressure display (18); and the pressure display (18) is fixed to the top of the top cover (3).

6. A leakage detection device for natural gas pipeline installation according to claim 5, characterized in that: A battery box (4) is integrally provided on one side of the top cover (3), and a top cover (5) is installed on the top of the battery box (4).

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