Pipeline gas leakage prevention and alarm device

Abstract

The utility model discloses a pipeline gas anti -leakage alarm device relates to pipeline technical field, including first sealing plate and second sealing plate, the surface welding of first sealing plate installs alarm mechanism, the surface welding of second sealing plate installs limit sliding plate, the surface of first sealing plate is set up limit sliding slot, the inner wall of limit sliding groove is slidably installed on the surface of limit sliding plate first sealing plate, this pipeline gas anti -leakage alarm device, first sealing plate can be pushed on the embedded column ball auxiliary motion adjustment of its by the elastic performance of compressed elastic component, this mode not only guarantees the operation effect of convenient adjustment of alarm mechanism when carrying out gas pipeline detection, but also guarantees the effect of auxiliary sliding adjustment of first sealing plate, and further improves the equipment to respond to different position maintenance can be flexibly adjusted use, therefore, the drawbacks of poor follow -up maintenance efficiency of traditional equipment inconvenient to adjust are improved.

Description

Technical Field

[0001] This utility model relates to the field of pipeline technology, and in particular to a pipeline gas leak prevention alarm device. Background Technology

[0002] Gas pipelines are pipelines that transport natural gas from extraction sites or processing plants to urban gas distribution centers or industrial users. They are also known as gas transmission pipelines. Using natural gas pipelines to transport natural gas is a way to transport large quantities of natural gas on land.

[0003] Comparing with the published patent number CN213900753U, a gas pipeline leak alarm device is disclosed, including: a pipeline body, a leak-proof box, and a push box. The leak-proof box is installed on the outer periphery of the axial body of the pipeline body. One end of the U-shaped tube is connected to the push box installed in the leak-proof box. A float plate is slidably installed inside the push box. The top of the float plate is fixedly connected to a sliding column. A protective gas box is installed in the leak-proof box at a position above the push box. A limiting ring that slides with the sliding column is fixedly installed on the top of the push box. Multiple through grooves are provided in the sliding column at a position above the limiting ring.

[0004] Although this solution allows gas leaks to flow into the U-shaped pipe, causing the propellant to enter the push box and push the float plate, which in turn moves the sliding column upward, the protective gas in the protective gas box can flow out through the channel to protect the pipeline. After the float plate moves upward, it triggers the limit switch to alarm and remind the user, effectively reducing safety hazards, this gas pipeline leak alarm device can only be fixed in one location, which is inconvenient for disassembly and maintenance. Moreover, it cannot be quickly moved and repositioned during adjustment and use, resulting in poor flexibility in the use of this leak alarm device. Utility Model Content

[0005] The purpose of this utility model is to solve at least one of the technical problems existing in the prior art, and to solve the problems raised in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a pipeline gas leak prevention alarm device, comprising a first sealing plate and a second sealing plate, wherein an alarm mechanism is welded and installed on the surface of the first sealing plate, a limit sliding plate is welded and installed on the surface of the second sealing plate, a limit sliding groove is formed on the surface of the first sealing plate, the surface of the limit sliding plate is slidably installed on the inner wall of the limit sliding groove of the first sealing plate, an auxiliary clamping plate is welded and installed on the surface of the second sealing plate, a positioning stud is installed on the internal thread of the first sealing plate, an auxiliary ring is rotatably installed on the surface of the positioning stud, a guide vertical plate is welded and installed on the surface of the auxiliary ring, the surface of the guide vertical plate is slidably installed inside the first sealing plate, and a positioning clamping plate is welded and installed on the surface of the guide vertical plate.

[0007] Preferably, the surface of the positioning plate is inclined.

[0008] Preferably, the surfaces of the first sealing plate and the second sealing plate are provided with mating grooves, and sealing rings are bonded to the inner walls of the mating grooves on the first sealing plate and the second sealing plate.

[0009] Preferably, the surface of the limiting slide plate is provided with a positioning groove, and the surface of the positioning plate is slidably mounted on the inner wall of the positioning groove on the limiting slide plate.

[0010] Preferably, a guide horizontal plate is welded and installed on the surface of the guide vertical plate, and the surface of the guide horizontal plate is slidably installed on the inner side of the first sealing plate.

[0011] Preferably, an embedded post is slidably installed on the inner side of the sealing ring on the first sealing plate, a ball is rotatably installed on the inner side of the embedded post, and an elastic component is provided on the inner side of the first sealing plate, with both ends of the elastic component fixedly installed on the surfaces of the embedded post and the first sealing plate, respectively.

[0012] Preferably, the alarm mechanism uses components such as a buzzer, an alarm light, a detector, a high-precision monitoring sensor, an ultra-narrow linewidth laser, and a distributed vibration sensor in electrical coordination.

[0013] Preferably, a limiting slide bar is welded and installed on the surface of the first sealing plate, and the upper end of the limiting slide bar is slidably installed inside the second sealing plate.

[0014] Compared with the prior art, the beneficial effects of this utility model are: (1) The gas pipeline leak prevention alarm device can detect and process gas pipelines by adjusting the positioning plate and the limiting slide plate on the guide vertical plate to a predetermined position through the positioning stud. When the detection of the first gas pipeline is completed and the next gas pipeline needs to be detected, the positioning plate and the limiting slide plate on the guide vertical plate are separated by the positioning stud. At this time, after the first sealing plate and the second sealing plate are unfolded, the first sealing plate can be adjusted by the ball on the embedded column driven by the elastic performance of the compressed elastic component. This method not only ensures that the alarm mechanism has a convenient adjustment operation effect when detecting gas pipelines, but also ensures that the first sealing plate has an auxiliary sliding adjustment effect. This improves the device's ability to be flexibly adjusted when dealing with maintenance at different locations. Therefore, it improves the disadvantage of traditional equipment being inconvenient to adjust and having poor subsequent maintenance efficiency, thereby improving the practicality of the device.

[0015] (2) The gas pipeline leak prevention alarm device can form a precise docking when it is aligned with the positioning groove on the limiting slide plate by the tilt setting of the positioning plate. In addition, the tilting surface of the positioning plate can make the first sealing plate and the second sealing plate have a more compact docking effect when they are squeezed and sealed on the gas pipeline surface. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a schematic diagram of the structure of a pipeline gas leak prevention alarm device according to the present invention; Figure 2 This is a schematic diagram of the unfolded structure of a pipeline gas leak prevention alarm device according to the present invention; Figure 3 This is a schematic diagram of the planar structure of a pipeline gas leak prevention alarm device according to the present invention; Figure 4 This is a schematic diagram of the planar structure of the guide plate of this utility model; Figure 5 This is a schematic diagram of the planar structure of the embedded column of this utility model.

[0017] Reference numerals in the attached drawings: 1. First sealing plate; 2. Second sealing plate; 3. Alarm mechanism; 4. Docking groove; 5. Sealing ring; 6. Embedded column; 7. Rolling ball; 8. Elastic component; 9. Limiting slide plate; 10. Limiting slide groove; 11. Limiting slide rod; 12. Positioning stud; 13. Auxiliary ring; 14. Guide vertical plate; 15. Positioning clamping plate; 16. Positioning groove; 17. Guide horizontal plate; 18. Auxiliary clamping plate. Detailed Implementation

[0018] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0019] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0021] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0022] Please see Figure 1-5 This utility model provides a technical solution: a pipeline gas leak prevention alarm device, including a first sealing plate 1 and a second sealing plate 2. An alarm mechanism 3 is welded and installed on the surface of the first sealing plate 1. The alarm mechanism 3 is a prior art technology. The alarm mechanism 3 uses components such as a buzzer, an alarm light, a detector, a high-precision monitoring sensor, an ultra-narrow linewidth laser, and a distributed vibration sensor in electrical coordination to realize the construction of a multi-dimensional high-sensitivity monitoring system. It integrates multi-source data such as vibration, pressure, flow, and temperature, and establishes a leak feature recognition model through machine learning algorithms to improve the accuracy of small leak detection and reduce the false alarm rate caused by environmental interference. Different sensors are adapted for metal / non-metal materials and pipelines of different pressure levels to achieve refined customization of the monitoring solution. The buzzer and alarm light can realize synchronous alarm sound and light warning. The relevant detection components of the alarm mechanism 3 are also prior art technologies and will not be described in detail here.

[0023] Furthermore, the surfaces of the first sealing plate 1 and the second sealing plate 2 are provided with mating grooves 4, and sealing rings 5 ​​are bonded and installed on the inner walls of the mating grooves 4 on the first sealing plate 1 and the second sealing plate 2. The mating grooves 4 on the first sealing plate 1 and the second sealing plate 2 are adapted to fit and match the gas pipeline, while the sealing rings 5 ​​are used to seal the gas pipeline connection during inspection.

[0024] Furthermore, an embedded post 6 is slidably installed on the inner side of the sealing ring 5 on the first sealing plate 1, and a ball bearing 7 is rotatably installed on the inner side of the embedded post 6. An elastic component 8 is provided on the inner side of the first sealing plate 1, and the two ends of the elastic component 8 are respectively fixedly installed on the surface of the embedded post 6 and the first sealing plate 1. When the first sealing plate 1 and the second sealing plate 2 are not positioned and sealed on the surface of the gas pipeline, the first sealing plate 1 and the second sealing plate 2 are in an unfolded state. Then, the first sealing plate 1 can be moved to the next point on the surface of the gas pipeline for detection with the assistance of the ball bearing 7 on the embedded post 6, thereby improving the drawback of traditional equipment that needs to be removed and carried manually. When the first sealing plate 1 and the second sealing plate 2 are closed and sealed, the embedded post 6 will be squeezed into the sealing ring 5 by the gas pipeline.

[0025] Furthermore, a limiting slide plate 9 is welded and installed on the surface of the second sealing plate 2, and a limiting slide groove 10 is formed on the surface of the first sealing plate 1. The surface of the limiting slide plate 9 is slidably installed on the inner wall of the upper limiting slide groove 10 of the first sealing plate 1. An auxiliary locking plate 18 is welded and installed on the surface of the second sealing plate 2. The height of the auxiliary locking plate 18 is less than the height of the limiting slide plate 9, and the auxiliary locking plate 18 cannot be limited and slid inside the first sealing plate 1 like the limiting slide plate 9. A limiting slide rod 11 is welded and installed on the surface of the first sealing plate 1. The upper end of the limiting slide rod 11 is slidably installed inside the second sealing plate 2. The first sealing plate 1 has multiple sets of upper limiting slide grooves 10.

[0026] Furthermore, the upper limit groove 10 of the first sealing plate 1 is used to accommodate and fit the auxiliary clamping plate 18 and the limiting slide plate 9 on the first sealing plate 1. When the second sealing plate 2 and the first sealing plate 1 are unfolded, the limiting slide rod 11 can allow the first sealing plate 1 and the second sealing plate 2 to slide and form a limit, so that the first sealing plate 1 and the second sealing plate 2 will not separate. When the first sealing plate 1 and the second sealing plate 2 are separated from the gas pipeline, it is only necessary to open the first sealing plate 1 and the second sealing plate 2 and then pass them through the auxiliary clamping plate 18 to separate them from the gas pipeline. Because the height of the first sealing plate 1 and the second sealing plate 2 after unfolding is greater than the diameter of the pipeline, the first sealing plate 1 and the second sealing plate 2 can be separated from the gas pipeline after unfolding.

[0027] Furthermore, a positioning stud 12 is installed on the internal thread of the first sealing plate 1, an auxiliary ring 13 is rotatably installed on the surface of the positioning stud 12, a guide vertical plate 14 is welded to the surface of the auxiliary ring 13, and the surface of the guide vertical plate 14 is slidably installed inside the first sealing plate 1. The function of the positioning stud 12 is to adjust the position of the guide vertical plate 14 by adjusting the screw between the positioning stud 12 and the first sealing plate 1 and by adjusting the rotation between the positioning stud 12 and the auxiliary ring 13.

[0028] Furthermore, a positioning plate 15 is welded and installed on the surface of the guide vertical plate 14. The surface of the positioning plate 15 is inclined. A positioning groove 16 is opened on the surface of the limiting slide plate 9. The surface of the positioning plate 15 is slidably installed on the inner wall of the positioning groove 16 on the limiting slide plate 9. The inclined setting of the positioning plate 15 can make it accurately docked with the positioning groove 16 on the limiting slide plate 9. In addition, the inclined surface of the positioning plate 15 can make the first sealing plate 1 and the second sealing plate 2 have a more compact docking effect when they are squeezed and sealed on the surface of the gas pipeline.

[0029] Furthermore, a guide horizontal plate 17 is welded and installed on the surface of the guide vertical plate 14. The guide horizontal plate 17 is slidably installed on the inner side of the first sealing plate 1. The limiting slide plate 9 and the auxiliary clamping plate 18 are two sets. The guide horizontal plate 17 is also welded and installed on the surface of the guide horizontal plate 17. The function of the guide horizontal plate 17 is to follow the guide vertical plate 14 to adjust and move so that the positioning clamping plate 15 on the guide horizontal plate 17 can be connected and matched with the limiting slide plate 9 and the auxiliary clamping plate 18.

[0030] Working Principle: A pipeline gas leak prevention alarm device, when it is necessary to detect the connection between two gas pipelines, simply place the first sealing plate 1 and the second sealing plate 2 on the surface of the gas pipeline, and then close the second sealing plate 2 and the first sealing plate 1. At this time, the sealing ring 5 on the first sealing plate 1 and the second sealing plate 2 first contacts the gas pipeline, and then the operator controls the positioning stud 12 to adjust and move. Then, the positioning stud 12 drives the positioning plate 15 to engage with the upper limit slide groove 10 of the limit slide plate 9 through the guide vertical plate 14. After the positioning stud 12 drives the positioning plate 15 on the guide vertical plate 14 and the limit slide plate 9 to adjust to the predetermined position, the gas pipeline can be detected and processed by the alarm mechanism 3. When the detection of this stage is completed and the next gas pipeline needs to be detected, simply separate the positioning plate 15 on the guide vertical plate 14 and the limit slide plate 9 through the positioning stud 12. At this time, after the first sealing plate 1 and the second sealing plate 2 are unfolded, the first sealing plate 1 can be adjusted by the ball 7 on the embedded column 6 pushed by the elastic performance of the compressed elastic component 8.

[0031] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A pipeline gas leak prevention alarm device, comprising a first sealing plate (1) and a second sealing plate (2), characterized in that: An alarm mechanism (3) is welded to the surface of the first sealing plate (1), a limit slide plate (9) is welded to the surface of the second sealing plate (2), a limit groove (10) is opened on the surface of the first sealing plate (1), the surface of the limit slide plate (9) is slidably installed on the inner wall of the limit groove (10) on the first sealing plate (1), an auxiliary clamping plate (18) is welded to the surface of the second sealing plate (2), a positioning stud (12) is installed in the internal thread of the first sealing plate (1), an auxiliary ring (13) is rotatably installed on the surface of the positioning stud (12), a guide vertical plate (14) is welded to the surface of the auxiliary ring (13), the surface of the guide vertical plate (14) is slidably installed inside the first sealing plate (1), and a positioning clamping plate (15) is welded to the surface of the guide vertical plate (14).

2. The pipeline gas leak prevention alarm device according to claim 1, characterized in that: The surface of the positioning plate (15) is inclined.

3. The pipeline gas leak prevention alarm device according to claim 1, characterized in that: The first sealing plate (1) and the second sealing plate (2) have mating grooves (4) on their surfaces, and sealing rings (5) are bonded to the inner walls of the mating grooves (4) on the first sealing plate (1) and the second sealing plate (2).

4. The pipeline gas leak prevention alarm device according to claim 1, characterized in that: The surface of the limiting slide plate (9) is provided with a positioning groove (16), and the surface of the positioning plate (15) is slidably installed on the inner wall of the positioning groove (16) on the limiting slide plate (9).

5. A pipeline gas leak prevention alarm device according to claim 1, characterized in that: A guide horizontal plate (17) is welded and installed on the surface of the guide vertical plate (14), and the surface of the guide horizontal plate (17) is slidably installed on the inner side of the first sealing plate (1).

6. A pipeline gas leak prevention alarm device according to claim 3, characterized in that: An embedded post (6) is slidably installed on the inner side of the sealing ring (5) on the first sealing plate (1), and a ball (7) is rotatably installed on the inner side of the embedded post (6). An elastic component (8) is provided on the inner side of the first sealing plate (1), and the two ends of the elastic component (8) are respectively fixedly installed on the surface of the embedded post (6) and the first sealing plate (1).

7. The pipeline gas leak prevention alarm device according to claim 1, characterized in that: The alarm mechanism (3) uses a buzzer, an alarm light, a detector, a high-precision monitoring sensor, an ultra-narrow linewidth laser, and a distributed vibration sensing component in electrical coordination.

8. The pipeline gas leak prevention alarm device according to claim 1, characterized in that: A limiting slide rod (11) is welded and installed on the surface of the first sealing plate (1), and the upper end of the limiting slide rod (11) is slidably installed inside the second sealing plate (2).

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