A natural gas pipeline joint gas tightness detection device

Abstract

The utility model discloses a natural gas pipeline connecting mouth air tightness detection device, including detection seat, detection seat is equipped in natural gas pipeline one end, and detection seat includes first mount pad and second mount pad, and one side of first mount pad and second mount pad all is equipped with limit sliding rail, and the outside of limit sliding rail is equipped with limit sliding seat, and limit sliding seat and limit sliding rail still have motor through gear set transmission connection, and the outside of limit sliding seat is equipped with detection rod and natural gas sensor through mounting post and locating seat, and the signal output end of natural gas sensor and the controller signal input end electric connection of detection seat outside, the utility model discloses a detection seat is equipped in natural gas pipeline one end outside, and will be set up with natural gas sensor closely natural gas pipeline connecting mouth outside, then through motor and gear set drive limit sliding seat and rotate along limit sliding rail and adjust, thereby utilize natural gas sensor and carry out detection processing to connecting mouth outside multi -angle, be favorable to the precision of detection.

Description

Technical Field

[0001] This utility model relates to the field of pipeline interface air tightness testing technology, specifically a natural gas pipeline connection air tightness testing device. Background Technology

[0002] Natural gas refers to all gases that exist naturally in the world, including gases formed by various natural processes in the atmosphere, hydrosphere, and lithosphere (including oilfield gas, gas field gas, mud volcano gas, coalbed methane, and biogenic gas). Existing natural gas pipelines are connected by flanges. Over time, the internal rubber may age, leading to poor airtightness and leaks. Therefore, workers install detection devices on the outer surface of natural gas pipelines to periodically check their airtightness.

[0003] An existing patent application (application number 202223534437.2) discloses an airtightness testing device for natural gas pipelines. The device includes two natural gas pipelines connected by flanges. Two sealing sleeves are symmetrically arranged on the upper and lower sides of the outer surface of the natural gas pipelines and connected by a connecting assembly. This airtightness testing device has a baffle on the outer surface of the lug, which shields the mounting hole, reducing external environmental corrosion of the bolts and thus slowing down corrosion. A wireless pinhole probe is installed inside the testing container for automatic observation. However, it cannot perform multi-angle testing of the external connection of the natural gas pipeline, resulting in low testing accuracy. Summary of the Invention

[0004] The purpose of this invention is to provide a natural gas pipeline connection airtightness detection device to solve the problem that the existing technology cannot detect the external angle of the natural gas pipeline connection, resulting in low detection accuracy.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a natural gas pipeline connection airtightness detection device, comprising a detection seat, which is sleeved on the outside of one end of the natural gas pipeline. The detection seat includes a first mounting seat and a second mounting seat. Both the first and second mounting seats are provided with a limiting slide rail on one side, and a limiting slide block is provided on the outside of the limiting slide rail. The limiting slide block and the limiting slide rail are also connected to a motor through a gear set. A detection rod is provided on the outside of the limiting slide block through a mounting column and a positioning seat. The positioning seat is slidably sleeved with the mounting column, and a locking bolt is threaded on the side wall of the positioning seat. A natural gas sensor is provided on one side of the detection rod. The signal output terminal of the natural gas sensor is electrically connected to the signal input terminal of a controller on the outside of the detection seat. The signal output terminal of the controller is also electrically connected to an alarm. A battery for powering the alarm, motor, natural gas sensor, and controller is provided on the outside of the second mounting seat.

[0006] Furthermore, both the first mounting base and the second mounting base are designed as semi-circular mounting bases, and both the first mounting base and the second mounting base are provided with mounting arms on both sides. The two mounting arms are fixed together by screws and nuts.

[0007] Furthermore, both the first and second mounting bases have mounting grooves on their inner walls, and the screw is fixedly mounted on one side of a mounting arm.

[0008] Furthermore, the limiting slide rail is configured as an annular slide rail, and the longitudinal section of the limiting slide rail is T-shaped.

[0009] Furthermore, the gear set includes a driven gear ring disposed inside the limiting slide rail, the motor is fixedly mounted on the outer wall of the limiting slide, and one end of the motor is provided with a driving gear that meshes with the driven gear ring, the driving gear being disposed in a groove inside the limiting slide.

[0010] Furthermore, the inner wall of the limiting slide block is provided with a T-shaped sliding groove, and the T-shaped sliding groove is slidably disposed with the outer wall of the limiting slide rail.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This invention involves placing a detection seat on the outside of one end of a natural gas pipeline and setting a natural gas sensor close to the outside of the pipeline connection. Then, a motor and gear set drive a limiting slide to rotate and adjust along a limiting slide rail. This allows the natural gas sensor to detect the outside of the connection from multiple angles, which improves the accuracy of the detection. Furthermore, when using the rotating natural gas sensor for multi-point detection, observing the gas content at each location can accurately determine the location of the leak.

[0013] This invention features a natural gas sensor mounted on one side of a detection rod. The signal output of the natural gas sensor is electrically connected to the signal input of a controller on the outside of the detection base. The signal output of the controller is also electrically connected to an alarm. The natural gas sensor performs multi-angle detection on the outside of the natural gas pipeline connection. When a gas leak occurs, the natural gas sensor feeds the information back to the controller, which then activates the alarm to issue a warning, thus improving the safety of personnel detecting gas leaks at the connection point.

[0014] This utility model features a first and a second mounting base that are both semi-circular, with mounting arms on both sides. The two mounting arms are fixed together by screws and nuts, making it easy to install the detection seat on the outside of one end of the natural gas pipeline. The installation and fixing are highly stable and the disassembly and assembly are convenient and quick. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 This is a schematic diagram of the mounting base structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the limiting slide structure of this utility model.

[0019] In the diagram: 1. Natural gas pipeline; 2. First mounting base; 3. Second mounting base; 4. Mounting arm; 5. Screw; 6. Nut; 7. Limiting slide rail; 8. Limiting slide block; 9. Mounting column; 10. Detection rod; 11. Natural gas sensor; 12. Driven gear ring; 13. T-shaped slide groove; 14. Groove; 15. Motor; 16. Drive gear; 17. Positioning seat; 18. Locking bolt; 19. Battery; 20. Alarm; 21. Controller. 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] Please see Figure 1 , Figure 2 , Figure 3In this embodiment of the utility model, a natural gas pipeline connection airtightness testing device includes a testing seat, a first mounting seat 2 and a second mounting seat 3, both of which are semi-circular mounting seats. The first mounting seat 2 and the second mounting seat 3 are provided with mounting arms 4 on both sides. The two mounting arms 4 are fixed together by screws 5 and nuts 6. The inner walls of the first mounting seat 2 and the second mounting seat 3 are provided with mounting grooves. The screws 5 are fixedly set on one side of a mounting arm 4. The testing seat is sleeved on the outside of one end of the natural gas pipeline 1, which makes it easy to sleeve the testing seat on the outside of one end of the natural gas pipeline 1. The installation and fixing stability is high, and the disassembly and assembly are convenient and quick.

[0022] like Figure 1 and Figure 3 As shown, in order to achieve multi-angle detection of the external interface, the detection base includes a first mounting base 2 and a second mounting base 3. Both the first mounting base 2 and the second mounting base 3 have a limiting slide rail 7 on one side. The limiting slide rail 7 is an annular slide rail with a T-shaped longitudinal section. A limiting slide seat 8 is provided on the outer side of the limiting slide rail 7. A T-shaped groove 13 is provided on the inner wall of the limiting slide seat 8, and the T-shaped groove 13 slides slidably with the outer wall of the limiting slide rail 7. The limiting slide seat 8 and the limiting slide rail 7 are also connected to a motor 15 via a gear set. The gear set includes a driven gear ring 12 disposed inside the limiting slide rail 7. The motor 15 is fixedly mounted on the outer wall of the limiting slide seat 8, and one end of the motor 15 has a driving gear 16 that meshes with the driven gear ring 12. The driving gear 16 is disposed inside the limiting slide seat 8. Inside the groove 14, a detection rod 10 is provided on the outside of the limiting slide 8 via the mounting column 9 and the positioning seat 17. The positioning seat 17 is slidably sleeved with the mounting column 9, and a locking bolt 18 is threaded on the side wall of the positioning seat 17. A natural gas sensor 11 is provided on one side of the detection rod 10. The signal output end of the natural gas sensor 11 is electrically connected to the signal input end of the controller 21 on the outside of the detection seat. The controller 21 is also provided with a display screen for displaying detection data. This allows the limiting slide 8 to be rotated and adjusted along the limiting slide rail 7 by the motor 15 and the gear set. Thus, the natural gas sensor 11 can be used to detect the outside of the connection port from multiple angles, which is beneficial to improving the detection accuracy. Moreover, when using the rotating natural gas sensor 11 to perform multi-point detection, the gas content at each position can be observed to accurately determine the location of the leak.

[0023] like Figure 1 and Figure 2As shown, in order to provide a warning when a gas leak is detected, an alarm 20 is also electrically connected to the signal output terminal of the controller 21. The natural gas sensor 11 is used to perform multi-angle detection on the outside of the connection port of the natural gas pipeline 1. When a gas leak occurs, the natural gas sensor 11 feeds the information back to the controller 21. The controller 21 will control the alarm 20 to sound an alarm to provide a warning, thereby improving the detection of gas leaks by personnel. The second mounting base 3 is equipped with a battery 19 on its outside for powering the alarm 20, the motor 15, the natural gas sensor 11 and the controller 21, which facilitates power supply.

[0024] The working principle and usage process of this utility model are as follows: When in use, the detection seat is placed on the outside of one end of the natural gas pipeline 1, and the natural gas sensor 11 is placed close to the outside of the connection port of the natural gas pipeline 1. Then, the limit slide 8 is driven by the motor 15 and the gear set to rotate and adjust along the limit slide rail 7. Thus, the natural gas sensor 11 is used to detect the outside of the connection port from multiple angles, which helps to improve the detection accuracy. Moreover, when using the rotating natural gas sensor 11 to perform multi-point detection, the gas content at each position can be observed to accurately determine the location of the leak.

[0025] 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 natural gas pipeline connection airtightness testing device, comprising a testing base, characterized in that: The detection seat is fitted on the outside of one end of the natural gas pipeline (1). The detection seat includes a first mounting seat (2) and a second mounting seat (3). The first mounting seat (2) and the second mounting seat (3) are provided with a limiting slide rail (7) on one side, and a limiting slide block (8) is provided on the outside of the limiting slide rail (7). The limiting slide block (8) and the limiting slide rail (7) are also connected to a motor (15) through a gear set. The limiting slide block (8) is provided with a detection rod (10) on the outside of the limiting slide block (8) through a mounting column (9) and a positioning seat (17). A natural gas sensor (11) is provided on one side of the detection rod (10). The signal output end of the natural gas sensor (11) is electrically connected to the signal input end of the controller (21) on the outside of the detection seat. The signal output end of the controller (21) is also electrically connected to an alarm (20).

2. The airtightness testing device for a natural gas pipeline connection according to claim 1, characterized in that: The first mounting base (2) and the second mounting base (3) are both semi-circular mounting bases, and the first mounting base (2) and the second mounting base (3) are provided with mounting arms (4) on both sides. The two mounting arms (4) are fixed together by screws (5) and nuts (6).

3. The airtightness testing device for a natural gas pipeline connection according to claim 2, characterized in that: The inner walls of the first mounting base (2) and the second mounting base (3) are provided with mounting grooves, and the screw (5) is fixedly installed on one side of a mounting arm (4).

4. The airtightness testing device for a natural gas pipeline connection according to claim 1, characterized in that: The limiting slide rail (7) is configured as an annular slide rail, and the longitudinal section of the limiting slide rail (7) is T-shaped.

5. The airtightness testing device for a natural gas pipeline connection according to claim 1, characterized in that: The gear set includes a driven gear ring (12) disposed inside the limiting slide rail (7), the motor (15) is fixedly installed on the outer wall of the limiting slide (8), and one end of the motor (15) is provided with a driving gear (16) that meshes with the driven gear ring (12). The driving gear (16) is disposed in the groove (14) inside the limiting slide (8).

6. The airtightness testing device for a natural gas pipeline connection according to claim 5, characterized in that: The inner wall of the limiting slide block (8) is provided with a T-shaped slide groove (13), and the T-shaped slide groove (13) is slidably disposed with the outer wall of the limiting slide rail (7).

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