Intelligent leakage monitoring device for pipeline gas

Abstract

The utility model provides an intelligent pipeline gas leakage monitoring device which comprises a pressure transmitter, a pipe joint is installed on the lower portion of the outer surface of the pressure transmitter, a boss part fixedly connected with the pipe joint is arranged on the pipe joint in a sleeved mode, two clamping plates are arranged between the boss part and the pressure transmitter, and the pressure transmitter is connected with the boss part. The middle positions of the opposite faces of the two clamping plates are sunken to form semi-circular grooves, protruding plates are installed at the ends, close to each other, of the two clamping plates through connecting pieces, hanging plates are installed at the ends, away from the clamping plates, of the protruding plates, and first semi-circular rings used for being arranged on a pipeline in a sleeving mode are installed at the lower ends of the hanging plates. One end, far away from the convex plate, of the first semi-circular ring is hinged with a second semi-circular ring sleeved on a pipeline. The device has the following beneficial effect that the device realizes that whether the threaded connection part of the pressure transmitter is tightened in place or not for quality inspection.

Description

TECHNICAL FIELD

[0001] The utility model relates to a pipeline gas intelligent leakage monitoring device belongs to pipeline leakage monitoring field. BACKGROUND

[0002] When the pipeline gas leaks, no matter the size of the leakage point, it will cause the loss of the gas in the pipeline, thereby causing the pressure drop in the pipeline. The pressure transmitter monitors the pressure in the pipeline in real time and transmits the measured pressure data to the central control system. The central control system compares the real-time pressure data with the preset normal pressure range. If the pressure value is lower than the lower limit of the normal range and lasts for a period of time (excluding the pressure fluctuation caused by other temporary factors such as the instantaneous start and stop of the gas equipment), the system will determine that the pipeline may have a gas leak. The threaded connection is one of the common connection methods of the pressure transmitter and the pipeline. If the pressure transmitter is not tightened according to the specified torque during installation, the initial connection will not be firm enough and will be loose in the subsequent use process due to various external forces. SUMMARY

[0003] In view of the deficiencies in the prior art, the utility model aims to provide a pipeline gas intelligent leakage monitoring device to solve the problems raised in the background art. The utility model realizes the quality inspection of whether the torque of the threaded connection part of the pressure transmitter is tightened in place.

[0004] In order to achieve the above-mentioned purpose, the utility model is implemented by the following technical scheme: a pipeline gas intelligent leakage monitoring device, comprising a pressure transmitter, a pipe joint is installed on the lower part of the outer surface of the pressure transmitter, a boss part is sleeved on the pipe joint and fixedly connected with the pipe joint, two clamping plates are arranged between the boss part and the pressure transmitter, a semicircular groove is formed in the middle part of the opposite surface of each clamping plate, the pipe joint penetrates the space formed by the two semicircular grooves, a lug plate is installed on the end of each clamping plate close to the other clamping plate through a connecting piece, a hanging plate is installed on the end of the lug plate away from the clamping plate, a first semicircular ring for sleeving on the pipeline is installed on the lower end of the hanging plate, a second semicircular ring for sleeving on the pipeline is hingedly connected to the end of the first semicircular ring away from the first semicircular ring, a connecting lug is installed on the end of the second semicircular ring away from the end hingedly connected with the first semicircular ring, and the connecting lug is connected with the hanging plate through the cooperation of a second screw and a second nut.

[0005] Further, the connecting piece comprises a connecting plate, the end of each clamping plate close to the other clamping plate is provided with a connecting plate, the lug plate is fixedly connected to the middle part of one side surface of the connecting plate, intermediate small holes are formed in both ends of the connecting plate, lower small holes are formed in both ends of the clamping plate and aligned with the intermediate small holes, a second screw is inserted into the channel formed by the lower small holes and the intermediate small holes, and a second nut is threadedly connected to one end of the second screw.

[0006] Further, the upper side of the connecting plate is provided with a limiting plate arranged in parallel with the connecting plate, the lower surface of the limiting plate is fixed with two supporting plates symmetrically, the lower end of the supporting plate is connected and fixed with the connecting plate, the two ends of the limiting plate are provided with upper small holes aligned with the middle small hole, the upper end of the second screw penetrates the upper small hole, and the second nut is arranged on the side of the limiting plate away from the connecting plate.

[0007] Further, the connecting plate and the convex plate are an integral structure, and the convex plate and the connecting plate are arranged perpendicular to each other.

[0008] Further, the first perforation is arranged on one side of the connecting lug, the second perforation aligned with the first perforation is arranged on one end of the hanging plate, and the first screw is threadedly connected with the first nut after penetrating the channel formed by the first perforation and the second perforation.

[0009] Further, the second perforation is provided with an L-shaped plate on the side away from the first perforation, one end of the L-shaped plate is connected and fixed with the hanging plate, the third perforation aligned with the second perforation is arranged on one side of the L-shaped plate, one end of the first screw penetrates the third perforation, and the first nut is arranged on the side of the third perforation away from the second perforation.

[0010] Further, a plurality of long circular openings are arranged on one side of the hanging plate.

[0011] The beneficial effects of the utility model are as follows:

[0012] 1. When the pipe joint of the pressure transmitter is threadedly connected to the interface on the pipeline, the two clamping plates are installed between the pressure transmitter and the convex portion, then the first semicircular ring is connected with the two clamping plates by the cooperation of the second screw and the second nut, then the first semicircular ring and the second semicircular ring are connected by the cooperation of the first screw and the second nut, when the structure formed by the first semicircular ring and the second semicircular ring can be sleeved on the pipeline, it indicates that the pipe joint on the pressure transmitter is threadedly connected to the interface on the pipeline, otherwise, it indicates that the pipe joint on the pressure transmitter is not threadedly connected to the interface on the pipeline.

[0013] 2. The second screw penetrates the channel formed by the lower small hole, the middle small hole and the upper small hole, and then the second nut is screwed, the relative position of the two clamping plates is limited, and the connection between the convex plate and the two clamping plates is completed, which is beneficial to reducing the use amount of fasteners, and at the same time, under the limitation of the limiting plate, there is a gap between the second nut and the connecting plate, when the second screw and the second nut cannot be normally disassembled due to rust, the second screw can be cut off by using the gap between the limiting plate and the connecting plate.

[0014] 3. After the structure formed by the first semicircular ring and the second semicircular ring is installed on the pipeline, the structure formed by the first semicircular ring, the second semicircular ring and the clamping plate and other components together restrict the relative position of the pressure transmitter, preventing the connection between the pressure transmitter and the pipeline from loosening due to pipeline vibration. Attached Figure Description

[0015] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0016] Figure 1 This is a schematic diagram of the structure of an intelligent pipeline gas leakage monitoring device according to the present invention;

[0017] Figure 2 This is another perspective view of the intelligent pipeline gas leakage monitoring device of this utility model;

[0018] Figure 3 This is an assembly diagram of the first semi-circular ring, the second semi-circular ring, and the clamping plate in a pipeline gas intelligent leakage monitoring device of this utility model.

[0019] Figure 4 This is an assembly diagram of the connecting plate, convex plate, hanging plate and first semi-circular ring in the intelligent pipeline gas leakage monitoring device of this utility model.

[0020] Figure 5 This is a schematic diagram of the assembly of the connecting lug and the second semi-circular ring in a pipeline gas intelligent leakage monitoring device of this utility model.

[0021] In the diagram: 1-Pressure transmitter, 2-Clamping plate, 3-Second nut, 4-Limiting plate, 5-Protruding plate, 6-Hanging plate, 7-Oblong opening, 8-Connecting lug, 9-Second semi-circular ring, 10-First semi-circular ring, 11-First nut, 12-L-shaped plate, 13-Connecting plate, 14-Second screw, 15-Pipe connector, 16-Boss, 17-First screw, 18-Lower hole, 19-Semi-circular groove, 20-Support plate, 21-Middle hole, 22-Upper hole, 23-Third through hole, 24-Second through hole, 25-First through hole. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0023] Please see Figure 1 and Figure 2This utility model provides a technical solution: an intelligent pipeline gas leak monitoring device, including a pressure transmitter 1, with a pipe connector 15 installed on the lower part of the outer surface of the pressure transmitter 1. The pressure transmitter 1 monitors the pressure inside the pipeline in real time and transmits the measured pressure data to a central control system. The central control system compares the real-time pressure data with a preset normal pressure range. If the pressure value is lower than the lower limit of the normal range and persists for a period of time, the system will determine that a gas leak may have occurred in the pipeline.

[0024] See Figures 1-4 The pipe connector 15 is fitted with a boss 16 that is fixed to the pipe connector 15. Two clamping plates 2 are provided between the boss 16 and the pressure transmitter 1. The middle of the opposite surfaces of the two clamping plates 2 are recessed to form a semi-circular groove 19. The pipe connector 15 passes through the space formed by the two semi-circular grooves 19. A connecting plate 13 is provided at the near ends of the two clamping plates 2. A protruding plate 5 is fixed to the middle of one side of the connecting plate 13. The connecting plate 13 and the protruding plate 5 are integrally formed. The protruding plate 5 and the connecting plate 13 are arranged perpendicular to each other. A small hole 21 is opened at both ends of the connecting plate 13. A small lower hole 18 is opened at both ends of the clamping plate 2 that is aligned with the small hole 21. A second screw 14 is inserted into the channel formed by the small lower hole 18 and the small hole 21. A second nut 3 is threaded to one end of the second screw 14. A parallel arrangement is provided on the upper side of the connecting plate 13. The limiting plate 4 has two support plates 20 symmetrically fixed on its lower surface. The lower end of the support plate 20 is connected and fixed to the connecting plate 13. Both ends of the limiting plate 4 have upper small holes 22 that are aligned with the middle small hole 21. The upper end of the second screw 14 passes through the upper small hole 22. The second nut 3 is set on the side of the limiting plate 4 away from the connecting plate 13. The second screw 14 passes through the channel formed by the lower small hole 18, the middle small hole 21 and the upper small hole 22 and is then screwed on. This completes the restriction of the relative position of the two clamping plates 2 and the connection between the convex plate 5 and the two clamping plates 2. This helps to reduce the amount of fasteners used. At the same time, under the restriction of the limiting plate 4, there is a gap between the second nut 3 and the connecting plate 13. When the second screw 14 and the second nut 3 cannot be separated normally due to rust, the second screw 14 can be cut off by using the gap between the limiting plate 4 and the connecting plate 13.

[0025] See Figures 1-5A hanging plate 6 is installed at the end of the protruding plate 5 away from the clamping plate 2. Multiple elongated openings 7 are provided on one side of the hanging plate 6, equidistantly arranged along its length. This design reduces the material consumption during the production of the hanging plate 6. A first semi-circular ring 10 for fitting onto a pipe is installed at the lower end of the hanging plate 6. A second semi-circular ring 9 for fitting onto the pipe is hinged to the end of the first semi-circular ring 10 away from the protruding plate 5. A connecting lug 8 is installed at the end of the second semi-circular ring 9 away from its hinged connection to the first semi-circular ring 10. The connecting lug 8 is connected to the hanging plate 6 by a first screw 17 and a first nut 11. After the pipe connector 15 of the pressure transmitter 1 is threaded onto the interface on the pipe, the two clamping plates 2 are installed between the pressure transmitter 1 and the protruding part 16. Then, the second screw 14 and... The first semi-circular ring 10 is connected to the two clamping plates 2 by means of the second nut 3. Then, the first semi-circular ring 10 and the second semi-circular ring 9 are connected by means of the first screw 17 and the second nut 3. When the structure formed by the first semi-circular ring 10 and the second semi-circular ring 9 can be fitted onto the pipeline, it means that the pipe joint 15 on the pressure transmitter 1 is threadedly connected to the interface on the pipeline. Otherwise, it means that the pipe joint 15 on the pressure transmitter 1 is not threadedly connected to the interface on the pipeline. After the structure formed by the first semi-circular ring 10 and the second semi-circular ring 9 is installed on the pipeline, the structure formed by the first semi-circular ring 10, the second semi-circular ring 9 and the clamping plates 2 together restrict the relative position of the pressure transmitter 1, preventing the connection between the pressure transmitter 1 and the pipeline from loosening due to the vibration of the pipeline.

[0026] See Figures 1-5 The connecting ear 8 has a first through hole 25 on one side, and the hanging plate 6 has a second through hole 24 that is aligned with the first through hole 25 on one end. The first screw 17 passes through the channel formed by the first through hole 25 and the second through hole 24 and is threaded to the first nut 11. The second through hole 24 has an L-shaped plate 12 on the side away from the first through hole 25. One end of the L-shaped plate 12 is connected and fixed to the hanging plate 6. The L-shaped plate 12 has a third through hole 23 that is aligned with the second through hole 24 on one side. One end of the first screw 17 passes through the third through hole 23. The first nut 11 is located on the side of the third through hole 23 away from the second through hole 24. Under the restriction of the L-shaped plate 12, there is a gap between the first nut 11 and the hanging plate 6. When the first screw 17 and the first nut 11 cannot be separated normally, the first screw 17 can be cut off by using the gap between the L-shaped plate 12 and the hanging plate 6.

[0027] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A pipeline gas intelligent leakage monitoring device, comprising a pressure transmitter (1), characterized in that: A pipe connector (15) is installed on the lower part of the outer surface of the pressure transmitter (1). A boss (16) is fitted on the pipe connector (15) and fixed to it. Two clamping plates (2) are provided between the boss (16) and the pressure transmitter (1). The middle part of the opposite face of the two clamping plates (2) is recessed to form a semi-circular groove (19). The pipe connector (15) passes through the space formed by the two semi-circular grooves (19). A boss (5) is installed at the close end of the two clamping plates (2) through a connector. A hanging plate (6) is installed at the end of the convex plate (5) away from the clamping plate (2). A first semi-circular ring (10) for fitting onto the pipe is installed at the lower end of the hanging plate (6). A second semi-circular ring (9) for fitting onto the pipe is hinged at the end of the first semi-circular ring (10) away from the convex plate (5). A connecting ear (8) is installed at the end of the second semi-circular ring (9) away from the end that is hinged to the first semi-circular ring (10). The connecting ear (8) is connected to the hanging plate (6) by means of a first screw (17) and a first nut (11).

2. The intelligent pipeline gas leakage monitoring device according to claim 1, characterized in that: The connector includes a connecting plate (13). The two clamping plates (2) are provided with a connecting plate (13) at their close ends. A protruding plate (5) is fixedly connected to the middle of one side of the connecting plate (13). A small hole (21) is provided at both ends of the connecting plate (13). A small hole (18) is provided at both ends of the clamping plate (2) and is aligned with the small hole (21). A second screw (14) is inserted into the channel formed by the small hole (18) and the small hole (21). A second nut (3) is threaded to one end of the second screw (14).

3. The intelligent pipeline gas leakage monitoring device according to claim 2, characterized in that: The upper side of the connecting plate (13) is provided with a limiting plate (4) arranged parallel to the connecting plate (13). Two support plates (20) are symmetrically fixed on the lower surface of the limiting plate (4). The lower end of the support plate (20) is connected and fixed to the connecting plate (13). Both ends of the limiting plate (4) are provided with upper small holes (22) aligned with the middle small hole (21). The upper end of the second screw (14) passes through the upper small hole (22). The second nut (3) is set on the side of the limiting plate (4) away from the connecting plate (13).

4. The intelligent pipeline gas leakage monitoring device according to claim 2, characterized in that: The connecting plate (13) and the convex plate (5) are integrally formed structures, and the convex plate (5) and the connecting plate (13) are arranged perpendicular to each other.

5. The intelligent pipeline gas leakage monitoring device according to claim 1, characterized in that: The connecting ear (8) has a first through hole (25) on one side, and the hanging plate (6) has a second through hole (24) that is aligned with the first through hole (25) on one end. The first screw (17) passes through the channel formed by the first through hole (25) and the second through hole (24) and is threaded to the first nut (11).

6. The intelligent pipeline gas leakage monitoring device according to claim 5, characterized in that: The second through hole (24) is provided with an L-shaped plate (12) on the side away from the first through hole (25). One end of the L-shaped plate (12) is connected and fixed to the hanging plate (6). A third through hole (23) is provided on one side of the L-shaped plate (12) and is aligned with the second through hole (24). One end of the first screw (17) passes through the third through hole (23). The first nut (11) is provided on the side of the third through hole (23) away from the second through hole (24).

7. The intelligent pipeline gas leakage monitoring device according to claim 1, characterized in that: The hanging plate (6) has multiple elongated openings (7) on one side, and the multiple elongated openings (7) are arranged at equal intervals along the length direction of the hanging plate (6).

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