A natural gas pipeline interface leak detection device

Abstract

The utility model discloses a natural gas pipeline interface gas leakage detection device, including first sealing cover, the bottom of first sealing cover is provided with second sealing cover, the inside of first sealing cover is provided with gas leak alarm, first sealing cover is installed first fixed plate, second sealing cover is provided with second fixed plate, the first powerful magnet is set up through the clamping plate of second fixed plate, first fixed plate has seted up the clamping groove, the top of clamping groove is installed first powerful magnet, first powerful magnet and second powerful magnet magnetism attract and connect, this natural gas pipeline interface gas leakage detection device, through first powerful magnet and second powerful magnet magnetism attract and connect, fix together and form sealed space with first sealing cover and second sealing cover, make gas leak alarm and natural gas pipeline interface complete detection simultaneously in sealed space inside, simple structure, low production cost, be favorable to the use of popularization.

Description

Technical Field

[0001] This utility model relates to the field of natural gas detection technology, specifically a natural gas pipeline interface leakage detection device. Background Technology

[0002] During the natural gas compression process, natural gas needs to be transported and processed through multiple pipelines, which are connected by flanges. To ensure production safety, it is necessary to frequently check whether the flanges are leaking.

[0003] For example, Chinese utility model patent CN214843815U discloses a natural gas pipeline interface leakage detection device, relating to the field of natural gas detection technology. This leakage detection device includes a connecting seat and two identical and symmetrically arranged sealing covers. A connecting arm is fixed to one side of each sealing cover, and the suspended end of the connecting arm is hinged to the connecting seat. The connecting seat contains a transmission component for driving the connecting arm to rotate, allowing the sealing covers to open and close under the drive of the transmission component. When the two sealing covers are engaged, they together form an internal space sealing cylinder, with clearance holes on both sides of the sealing cylinder. A natural gas detector is installed inside the sealing cover. This utility model seals the flange with the sealing cover, placing the flange in a sealed state, enabling accurate detection of flanges with leakage, improving detection efficiency, and preventing missed detections. The extension rod increases the operating distance of the natural gas detector, facilitating leakage detection of flanges that are difficult for inspectors to directly access.

[0004] Although the aforementioned authorized patent can detect leaks at natural gas pipeline interfaces, it is heavy, bulky, inconvenient to carry, and the entire device has a complex manufacturing process and high production costs, which is not conducive to its widespread use.

[0005] To address the aforementioned issues, there is an urgent need for innovative designs based on existing natural gas pipeline interface leakage detection devices. Utility Model Content

[0006] The purpose of this invention is to provide a natural gas pipeline interface leakage detection device to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a natural gas pipeline interface leakage detection device, including a first sealing cover, a second sealing cover at the bottom of the first sealing cover, and a gas leakage alarm on the inner side of the first sealing cover; The first sealing cover is equipped with a first fixing plate, the second sealing cover is equipped with a second fixing plate, the second fixing plate is equipped with a first strong magnet through a clamping plate, the first fixing plate has a clamping groove, the top of the clamping groove is equipped with a first strong magnet, and the first strong magnet and the second strong magnet are magnetically connected.

[0008] Preferably, both the first and second sealing covers are provided with weight-reducing grooves, and an arc-shaped rubber sheet is provided inside the weight-reducing grooves.

[0009] Preferably, handles are installed at the top of both ends of the first sealing cover and at the bottom of both ends of the second sealing cover.

[0010] Preferably, both ends of the first sealing cover and the second sealing cover are provided with semi-circular grooves, and rubber sealing elements are provided on the inner side of the semi-circular grooves, the bottom of the first sealing cover and the top of the second sealing cover.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: This natural gas pipeline interface leakage detection device uses a first strong magnet and a second strong magnet to magnetically connect and fix the first sealing cover and the second sealing cover together to form a sealed space. This allows the gas leak alarm and the natural gas pipeline interface to be located inside the sealed space to complete the detection. The structure is simple, the manufacturing cost is low, and it is conducive to widespread use. Both the first sealing cover and the second sealing cover are provided with weight-reducing grooves, and an arc-shaped rubber sheet is fixed inside the weight-reducing grooves. This reduces the overall weight of the first sealing cover and the second sealing cover, making them easy to carry. It also facilitates the magnetic connection and fixation of the first sealing cover and the second sealing cover by the first strong magnet and the second strong magnet. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a cross-sectional view of the first and second sealing covers of this utility model. Figure 3 This is a schematic diagram of the structure of the first and second sealing covers after separation. Figure 4 This is a cross-sectional view of the arc-shaped rubber sheet of this utility model.

[0013] In the diagram: 1. First sealing cover; 2. Second sealing cover; 3. First fixing plate; 4. Second fixing plate; 5. Slot; 6. Plate; 7. First strong magnet; 8. Second strong magnet; 9. Weight reduction groove; 10. Arc-shaped rubber sheet; 11. Handle; 12. Gas leak alarm; 13. Rubber seal. Detailed Implementation

[0014] 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.

[0015] Please see Figure 1-4 This utility model provides a technical solution: a natural gas pipeline interface leakage detection device, including a first sealing cover 1, a second sealing cover 2 provided at the bottom of the first sealing cover 1, and a gas leak alarm 12 fixed to the inner side of the first sealing cover 1 by bolts; The bottom sides of the first sealing cover 1 are fixed with first fixing plates 3, and the top sides of the second sealing cover 2 are fixed with second fixing plates 4. The top of the second fixing plate 4 is fixed with a clamping plate 6, and the top of the clamping plate 6 is fixed with a first strong magnet 7. The bottom of the first fixing plate 3 has a slot 5, and the top of the slot 5 is fixed with a first strong magnet 7. The clamping plate 6 and the first strong magnet 7 are engaged inside the slot 5. The first strong magnet 7 and the second strong magnet 8 are magnetically connected. The magnetic connection between the first strong magnet 7 and the second strong magnet 8 facilitates the quick disassembly and installation between the first sealing cover 1 and the second sealing cover 2, improving the efficiency of natural gas pipeline interface inspection. The engagement of the clamping plate 6 and the slot 5 allows the openings of the first sealing cover 1 and the second sealing cover 2 to be accurately and quickly aligned, further improving the efficiency of natural gas pipeline interface inspection.

[0016] Both the first sealing cover 1 and the second sealing cover 2 are provided with weight reduction grooves 9. An arc-shaped rubber sheet 10 is fixed inside the weight reduction groove 9, which reduces the overall weight of the first sealing cover 1 and the second sealing cover 2, making them easy to carry. At the same time, it also facilitates the magnetic connection and fixation of the first sealing cover 1 and the second sealing cover 2 by the first strong magnet 7 and the second strong magnet 8.

[0017] Handles 11 are fixed to the top of both ends of the first sealing cover 1 and the bottom of both ends of the second sealing cover 2, so that the first sealing cover 1 and the second sealing cover 2 can be moved easily by the handles 11.

[0018] Both ends of the first sealing cover 1 and the second sealing cover 2 are provided with semi-circular grooves. Rubber sealing elements 13 are fixed to the inner side of the semi-circular grooves, the bottom of the first sealing cover 1 and the top of the second sealing cover 2, which increases the sealing between the first sealing cover 1 and the second sealing cover 2, and also increases the sealing at the connection between the first sealing cover 1 and the second sealing cover 2 and the natural gas pipeline, thereby improving the accuracy of the detection device.

[0019] The gas leak alarm model 12, JT-QF-D730, is an existing product. It will sound an alarm after detecting a gas leak, and the battery can be replaced.

[0020] Working principle: When using this natural gas pipeline interface leak detection device, firstly, lift the first sealing cover 1 using handle 11, placing it above the natural gas pipeline interface to cover the upper half of the interface. Then, lift the second sealing cover 2 using handle 11, positioning it below the interface. Simultaneously, insert the clamping plate 6 and the first strong magnet 7 into the slot 5. Under the magnetic force of the first and second strong magnets 7 and 8, the first and second sealing covers 1 and 2 are fixed together, with the second sealing cover 2 covering the lower half of the natural gas pipeline interface. The partial cover, together with the rubber seal 13 between the first sealing cover 1 and the second sealing cover 2, increases the sealing between the first sealing cover 1 and the second sealing cover 2, and also increases the sealing at the connection between the first sealing cover 1 and the second sealing cover 2 and the natural gas pipeline, so that a sealed space is formed inside the first sealing cover 1 and the second sealing cover 2. Since the natural gas pipeline interface is located inside the sealed space, when there is a gas leak at the natural gas pipeline interface, the gas leak alarm 12 will sound an alarm, indicating that the natural gas pipeline interface is leaking. If the gas leak alarm 12 does not sound an alarm, it means that the natural gas pipeline interface is not leaking.

[0021] Although the present invention 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 the present invention should be included within the protection scope of the present invention.

Claims

1. A natural gas pipeline interface leakage detection device, comprising a first sealing cover (1), characterized in that: A second sealing cover (2) is provided at the bottom of the first sealing cover (1), and a gas leak alarm (12) is provided on the inner side of the first sealing cover (1). The first sealing cover (1) is equipped with a first fixing plate (3), the second sealing cover (2) is provided with a second fixing plate (4), the second fixing plate (4) is provided with a first strong magnet (7) through a card plate (6), the first fixing plate (3) is provided with a card slot (5), the top of the card slot (5) is equipped with a first strong magnet (7), and the first strong magnet (7) and the second strong magnet (8) are magnetically connected.

2. The natural gas pipeline interface leakage detection device according to claim 1, characterized in that: The first sealing cover (1) and the second sealing cover (2) are both provided with weight reduction grooves (9), and an arc-shaped rubber sheet (10) is provided inside the weight reduction grooves (9).

3. The natural gas pipeline interface leakage detection device according to claim 1, characterized in that: Handles (11) are installed at the top of both ends of the first sealing cover (1) and at the bottom of both ends of the second sealing cover (2).

4. A natural gas pipeline interface leakage detection device according to claim 1, characterized in that: Both ends of the first sealing cover (1) and the second sealing cover (2) are provided with semi-circular grooves, and rubber sealing elements (13) are provided on the inner side of the semi-circular grooves, the bottom of the first sealing cover (1) and the top of the second sealing cover (2).

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