Safety production gas leakage detection device

Abstract

The utility model discloses a safety production gas leakage detection device, which relates to the technical field of gas leakage detection and comprises a first pipeline, a second pipeline, a fixed cover and a movable cover, the first pipeline is connected with the second pipeline through a flange, the fixed cover is mounted on the first pipeline, a lining slip ring is mounted on the second pipeline in a sliding and sealing manner, and the movable cover is mounted on the lining slip ring. The inner wall of the lining sliding ring is provided with a groove, and an O-shaped sealing ring is arranged in the groove. The fixed cover, the movable cover and the rubber connecting pipe are arranged, and the fixed cover and the movable cover are connected through the rubber connecting pipe and completely cover the joint of the first pipeline and the second pipeline; therefore, when gas leakage occurs between the first pipeline and the second pipeline, the rubber connecting pipe can be gradually expanded under the action of gas pressure, so that the rising speed of the gas pressure in the device is slowed down, buffer time is provided for the arrival of safety personnel, the probability of explosion caused by gas leakage is reduced, and the safety of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of gas leak detection technology, specifically a gas leak detection device for safe production. Background Technology

[0002] Gases contain methane or carbon monoxide, and some also contain trace amounts of hydrogen sulfide. If a leak occurs during transportation, it can easily cause poisoning and suffocation, and may even explode upon contact with an open flame. Gas leaks usually occur at the connection between two pipes because the sealing structure at the pipe connection is prone to aging and becoming inadequate over time.

[0003] Existing gas safety production gas leak detection methods typically involve installing gas leak detection devices at pipeline connections. When a gas leak is detected by the gas detection sensor, it will automatically alarm to alert nearby safety personnel. However, the internal space of existing detection devices is small and cannot be adaptively adjusted according to the amount of leaked gas. This can easily lead to a rapid increase in internal gas pressure, causing an explosion before safety personnel arrive, thus providing them with too little preparation time. Utility Model Content

[0004] The purpose of this invention is to provide a safe gas leak detection device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A gas leak detection device for safe production includes a first pipe, a second pipe, a fixed cover, and a movable cover. The first pipe and the second pipe are connected by a flange. The fixed cover is installed on the first pipe. An inner liner slip ring is slidably sealed on the second pipe. The inner wall of the inner liner slip ring is provided with a groove, and an O-ring is provided in the groove. The movable cover is installed on the inner liner slip ring. A rubber connecting pipe is installed between the movable cover and the fixed cover. The rubber connecting pipe is corrugated. A gas leak alarm is installed on the side of the fixed cover. A spare exhaust pipe is installed on the bottom of the fixed cover. A pressure gauge and a manual valve are installed sequentially from top to bottom on the spare exhaust pipe.

[0007] As a further embodiment of this utility model: the fixing cover includes an upper fixing cover body and a lower fixing cover body, and the upper fixing cover body and the lower fixing cover body are connected by bolts for sealing.

[0008] As a further embodiment of this utility model: the movable cover includes an upper movable cover body and a lower movable cover body, and the upper movable cover body and the lower movable cover body are connected by bolts for sealing.

[0009] As a further improvement of this utility model, two O-rings are provided on the inner wall of the inner lining slip ring.

[0010] As a further improvement of this utility model, a flange is installed at the bottom end of the spare exhaust pipe.

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

[0012] 1. This utility model, by setting up a fixed cover, a movable cover, and a rubber connecting pipe, connects the fixed cover and the movable cover through the rubber connecting pipe and completely covers the connection between the first pipe and the second pipe. In this way, when a gas leak occurs between the first pipe and the second pipe, the rubber connecting pipe can be gradually expanded under the action of gas pressure, thereby slowing down the rate of increase of gas pressure inside the device, providing a buffer time for safety personnel to arrive, thereby reducing the probability of gas leak leading to explosion and improving the safety of the device.

[0013] 2. This utility model improves the safety of pipeline maintenance by setting up a backup exhaust pipe, a pressure gauge and a manual valve. The pressure gauge on the backup exhaust pipe can detect the gas pressure inside the device. When the gas pressure is too high, safety personnel can operate the manual valve to release part of the gas to the safe gas pressure range before opening the device to inspect the leaking part. Attached Figure Description

[0014] Figure 1 This is a side sectional view of a gas leak detection device for safe production.

[0015] Figure 2 This is a schematic diagram of the overall structure of a gas leak detection device for safe production.

[0016] Figure 3 A gas leak detection device for safe production Figure 1 Enlarged view of the structure at point A in the middle.

[0017] 1. First pipe; 2. Second pipe; 3. Fixed cover; 301. Upper fixed cover; 302. Lower fixed cover; 4. Movable cover; 401. Upper movable cover; 402. Lower movable cover; 5. Rubber connecting pipe; 6. Gas leak alarm; 7. Inner lining slip ring; 8. Groove; 9. O-ring seal; 10. Spare exhaust pipe; 11. Manual valve; 12. Pressure gauge; 13. Flange. Detailed Implementation

[0018] 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.

[0019] Please see Figure 1-3 In this embodiment of the present invention, a gas leak detection device for safe production includes a first pipe 1, a second pipe 2, a fixed cover 3, and a movable cover 4. The first pipe 1 and the second pipe 2 are connected by a flange. The fixed cover 3 is installed on the first pipe 1. An inner lining slip ring 7 is slidably sealed on the second pipe 2. A groove 8 is provided on the inner wall of the inner lining slip ring 7, and an O-ring seal 9 is provided in the groove 8. The movable cover 4 is installed on the inner lining slip ring 7. A rubber connecting pipe 5 is installed between the movable cover 4 and the fixed cover 3. A gas leak alarm 6 is installed on the side of the fixed cover 3. The gas leak alarm 6 is used to automatically alarm when a gas leak is detected, alerting nearby safety personnel. The rubber connecting pipe 5 is corrugated, which allows for further deformation, thereby storing more leaked gas. The rubber connecting pipe 5 can be gradually expanded and elongated under gas pressure, thereby slowing down the rate of increase of gas pressure inside the device, providing a buffer time for safety personnel to arrive, and thus reducing the probability of gas leak leading to explosion and improving the safety of the device.

[0020] The fixed cover 3 includes an upper fixed cover body 301 and a lower fixed cover body 302, which are connected by bolts for sealing. The movable cover 4 includes an upper movable cover body 401 and a lower movable cover body 402, which are connected by bolts for sealing. Both the fixed cover 3 and the movable cover 4 consist of two parts, which facilitates the disassembly of the device and makes it easier for safety personnel to repair leaks in the pipeline.

[0021] Two O-rings 9 are provided on the inner wall of the inner lining slip ring 7. The provision of two O-rings 9 can make the sealing between the inner lining slip ring 7 and the second pipe 2 stronger.

[0022] Please see Figure 1-2 The bottom surface of the fixed cover 3 is equipped with a spare exhaust pipe 10. A pressure gauge 12 and a manual valve 11 are installed on the spare exhaust pipe 10 from top to bottom. A flange 13 is installed at the bottom end of the spare exhaust pipe 10. The flange 13 can be conveniently connected to other pipes or storage tanks on the spare exhaust pipe 10, so as to safely export excess gas to a designated container or store it directly. This can not only safely depressurize the device, but also reduce gas waste and air pollution.

[0023] It should be noted that a sealing ring is provided between the two flanges at all flange connections in this application to prevent gas leakage at the flange connection.

[0024] The working principle of this utility model is as follows:

[0025] In use, when a gas leak occurs between the first pipe 1 and the second pipe 2, the gas will gradually fill the entire device. The gas leak sensor 6 installed on the fixed cover 3 will sound an alarm when it detects a gas leak, alerting nearby safety personnel. As the gas pressure gradually increases, the gas will push the movable cover 4 to slide away from the fixed cover 3 on the second pipe 2. The movable cover 4 will cause the rubber connecting pipe 5 to extend, increasing the internal space of the device, so that the gas pressure will not continue to increase, thus providing time for safety personnel to arrive. After the safety personnel arrive, they can obtain the real-time pressure inside the device by observing the pointer on the pressure gauge 12. When the pressure is too high, the manual valve 11 will be opened to reduce the internal gas pressure of the device to a safe range before the device can be opened to repair the leak.

[0026] 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 safety production gas leakage detection device, comprising a first pipe (1), a second pipe (2), a fixed cover (3) and a movable cover (4), characterized in that: The first pipeline (1) and the second pipeline (2) are connected through flanges, a fixed cover (3) is installed on the first pipeline (1), an inner lining sliding ring (7) is slidably and sealingly installed on the second pipeline (2), a groove (8) is arranged on the inner wall of the inner lining sliding ring (7), an O-shaped sealing ring (9) is arranged in the groove (8), a movable cover (4) is installed on the inner lining sliding ring (7), a rubber connecting pipe (5) is installed between the movable cover (4) and the fixed cover (3), the rubber connecting pipe (5) is corrugated, a gas leakage alarm (6) is installed on the side of the fixed cover (3), a standby exhaust pipe (10) is installed on the bottom of the fixed cover (3), and a pressure gauge (12) and a manual valve (11) are sequentially installed on the standby exhaust pipe (10) from top to bottom.

2. The apparatus for detecting a leakage of a production gas according to claim 1, wherein: The fixed cover (3) comprises an upper fixed cover body (301) and a lower fixed cover body (302), and the upper fixed cover body (301) and the lower fixed cover body (302) are sealingly connected through bolts.

3. The apparatus for detecting a gas leak according to claim 1, wherein: The movable cover (4) comprises an upper movable cover body (401) and a lower movable cover body (402), and the upper movable cover body (401) and the lower movable cover body (402) are sealingly connected through bolts.

4. The apparatus for detecting a gas leak for safety production according to claim 1, characterized in that: The O-shaped sealing ring (9) is arranged on the inner wall of the inner lining sliding ring (7) in two.

5. The apparatus for detecting a gas leak for safety production according to claim 1, characterized in that: A flange plate (13) is installed at the bottom end of the standby exhaust pipe (10).

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