A low-pressure gas pipeline network micro-leakage monitoring device

Abstract

The utility model provides a kind of low-pressure gas pipe network micro-leakage monitoring device, it is related to gas pipeline monitoring technical field, including first cover body and second cover body, the first cover body outside is provided with first arc plate, the second cover body outside is provided with second arc plate, gas detector is provided on the second arc plate upper portion, through slot is opened in the side of second arc plate, first arc plate inside is slidably provided with the sealing sheet that carries out partial closure to through slot, cover is arranged in the end portion of first arc plate and second arc plate, the outside of first arc plate and second arc plate is provided with elastic compression mechanism.The utility model is closed to the part of low-pressure gas pipe network that is prone to micro-leakage by setting first cover body and second cover body, gas inside first cover body and second cover body is monitored by detection end, the micro-leakage of low-pressure gas pipe network can be accurately monitored, and the monitoring efficiency of low-pressure gas pipe network micro-leakage is improved.

Description

Technical Field

[0001] This utility model relates to the field of gas pipeline monitoring technology, and in particular to a micro-leakage monitoring device for low-pressure gas pipeline networks. Background Technology

[0002] With the development of society, gas pipeline networks have spread to almost every city. However, explosions caused by gas pipeline leaks pose a huge threat to urban safety.

[0003] Therefore, monitoring gas pipeline leaks is extremely important. The most common monitoring method is pressure monitoring, which is suitable for leaks in high-pressure pipelines. However, for micro-leaks at valve locations in low-pressure gas pipelines, they are difficult to detect in a timely manner and often only become detectable after a considerable period of time has passed. Utility Model Content

[0004] To address the technical problem that micro-leakage in low-pressure gas pipelines is not easily detected in a timely manner in existing technologies, this utility model provides a micro-leakage monitoring device for low-pressure gas pipelines.

[0005] The low-pressure gas pipeline micro-leakage monitoring device provided by this utility model adopts the following technical solution: A low-pressure gas pipeline micro-leakage monitoring device includes a first cover and a second cover that cover the outside of the gas pipeline. The first cover has a first arc-shaped plate outside, and the second cover has a second arc-shaped plate that cooperates with the first arc-shaped plate outside. A gas detector is provided on the upper part of the second arc-shaped plate. The second arc-shaped plate has a through groove on its side for the gas regulating rod to pass through. A sealing sheet that partially seals the through groove is slidably disposed inside the first arc-shaped plate. A cover that drives the sealing sheet to move is disposed at the ends of the first and second arc-shaped plates. An elastic pressing mechanism that fixes the installation position of the cover is disposed outside the first and second arc-shaped plates.

[0006] By adopting the above technical solution: by setting up a first cover and a second cover to seal off the parts of the low-pressure gas pipeline network that are prone to micro-leakage, and by monitoring the gas inside the first cover and the second cover through the detection end; by setting a through groove on the second arc plate to provide adjustment space for the gas regulating rod, so that the user can adjust the position of the gas regulating rod; by setting a sealing plate inside the first arc plate to partially seal the through groove, reducing the amount of gas flowing out through the through groove, thereby increasing the accuracy of gas detector monitoring; by setting up an elastic pressing mechanism, the cover can still rotate and drive the sealing plate to slide after being closed on the first arc plate and the second arc plate, so as to facilitate the adjustment of the opening size of the gas regulating rod. The above structural design can accurately monitor the micro-leakage of the low-pressure gas pipeline network and improve the monitoring efficiency of micro-leakage of the low-pressure gas pipeline network.

[0007] Furthermore, the elastic pressing mechanism is arranged on the second arc-shaped plate in the same way as it is arranged on the first arc-shaped plate. The elastic pressing mechanism includes a connecting seat fixedly arranged on the outer wall of the first arc-shaped plate. An L-shaped pressure plate is rotatably connected to the end of the connecting seat. A connecting plate is also provided on the connecting seat. The connecting plate is located at the bottom of the connecting seat. A spring is provided between the end of the L-shaped pressure plate away from the first arc-shaped plate and the connecting plate. The other end of the L-shaped pressure plate presses against the cover.

[0008] By adopting the above technical solution, the other end of the L-shaped pressure plate is pressed against the cover body under the elastic force of the spring, so that the cover body can be fixedly installed at the ends of the first arc-shaped plate and the second arc-shaped plate.

[0009] Furthermore, a groove is provided inside the first arc-shaped plate, and a sealing sheet that partially seals the through groove is slidably connected to the groove.

[0010] By adopting the above technical solution: the opening size of the through groove can be adjusted by rotating the sealing plate to increase the sealing performance of the first and second covers; when it is necessary to rotate the gas regulating rod, the sealing plate is rotated to the side away from the gas regulating rod to increase the opening size of the through groove, which allows the gas regulating rod to be rotated to the open position.

[0011] Furthermore, the top of the first and second arc-shaped plates is provided with a mounting groove, and the cover is provided with a protruding ring that cooperates with the mounting groove, the protruding ring being inserted into the mounting groove.

[0012] By adopting the above technical solution, the cover is positioned at the ends of the first and second arc-shaped plates.

[0013] Furthermore, the sealing sheet is provided with a locking groove near the end of the first arc-shaped plate, and the cover is provided with a protrusion that mates with the locking groove, the protrusion being inserted into the locking groove.

[0014] By adopting the above technical solution, the cover can be rotated to drive the sealing plate to rotate, and this structural design makes it easy to adjust the opening size of the through groove.

[0015] Furthermore, the first arc-shaped plate is connected to the interior of the first cover, and the second arc-shaped plate is connected to the interior of the second cover. The first cover and the second cover are detachably connected by bolts.

[0016] By adopting the above technical solution, the structural design facilitates the disassembly of the first and second covers.

[0017] Furthermore, sealing rings are embedded at the upper and lower ends of the first and second covers where they contact the pipe.

[0018] By adopting the above technical solution, the sealing performance of the upper and lower ends of the first and second covers is improved by using sealing rings.

[0019] Furthermore, a detection end is located at the bottom of the gas detector, and a through hole connection hole is opened on the second arc plate at the position corresponding to the detection end, through which the detection end extends into the interior of the second arc plate.

[0020] By adopting the above technical solution, the probe extends through the connection hole into the second arc-shaped plate to monitor the gas inside the first and second covers, thus preventing micro-leakage in the low-pressure gas pipeline network.

[0021] In summary, the beneficial effects of this utility model are as follows: This invention seals off areas of the low-pressure gas pipeline network prone to micro-leakage by setting up a first cover and a second cover, and provides a monitoring and installation end for the gas detector by setting up a second arc plate, and monitors the gas inside the first cover and the second cover through the detection end at the bottom of the gas detector.

[0022] A through-slot is provided on the second arc-shaped plate to provide adjustment space for the gas regulating rod, allowing the user to adjust its position. A sealing plate inside the first arc-shaped plate partially seals the through-slot, reducing gas outflow and increasing the accuracy of the gas detector. Interlocking grooves and protrusions are located on the sealing plate and the cover; rotating the cover drives the sealing plate to rotate, adjusting the opening size of the through-slot. An elastic clamping mechanism, with a spring, allows the cover to remain rotatable even after it is closed on the first and second arc-shaped plates, facilitating user adjustment of the gas regulating rod's opening size.

[0023] The above structural design enables timely and accurate monitoring of micro-leakage in low-pressure gas pipelines, improving the monitoring efficiency of micro-leakage in low-pressure gas pipelines. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the structure of the cover of this utility model after it is opened; Figure 3 This is a schematic diagram of the internal structure of the present invention; Figure 4 This utility model Figure 3 Enlarged view of part A in the middle; Figure 5 This utility model Figure 3 Enlarged view of part B in the middle; Figure 6 This is a schematic diagram of the structure of the cover of this utility model.

[0025] In the diagram: 1. First cover; 2. Second cover; 3. Gas regulating rod; 4. Gas detector; 5. Cover; 6. Elastic clamping mechanism; 7. Sealing ring; 11. First arc-shaped plate; 12. Sealing sheet; 21. Second arc-shaped plate; 41. Detector end; 51. Protruding ring; 52. Protrusion; 61. Connecting seat; 62. Connecting plate; 63. L-shaped pressure plate; 64. Spring; 111. Mounting groove; 112. Sliding groove; 121. Engaging groove; 211. Through groove; 212. Connecting hole. Detailed Implementation

[0026] The present invention will be further described below with reference to specific embodiments. The illustrative embodiments and descriptions of the present invention are used to explain the present invention, but are not intended to limit the present invention.

[0027] Reference Figure 1-3 As shown, this utility model discloses a low-pressure gas pipeline micro-leakage monitoring device, including a first cover 1 and a second cover 2 covering the outside of the gas pipeline. The first cover 1 and the second cover 2 are locked together by bolts. Sealing rings 7 are embedded at the upper and lower ends of the first cover 1 and the second cover 2 where they contact the pipeline, thereby improving the sealing performance of the upper and lower ends of the first cover 1 and the second cover 2.

[0028] Reference Figure 2As shown, a first arc-shaped plate 11 protrudes outward from the exterior of the first cover 1, and the first arc-shaped plate 11 is connected to the interior of the first cover 1. A second arc-shaped plate 21, which mates with the first arc-shaped plate 11, is provided on the exterior of the second cover 2, and the second arc-shaped plate 21 is connected to the interior of the second cover 2. After the first cover 1 and the second cover 2 are locked to the outside of the gas pipeline, the first arc-shaped plate 11 and the second arc-shaped plate 21 are aligned to form a cylindrical structure. A cover 5 is provided at the ends of the first arc-shaped plate 11 and the second arc-shaped plate 21 to seal the ends of the first arc-shaped plate 11 and the second arc-shaped plate 21. A gas detector 4 for monitoring the gas inside the first cover 1 and the second cover 2 is also fixedly installed on the upper part of the second arc-shaped plate 21.

[0029] Specifically, refer to Figure 4 As shown, a detection end 41 is located at the bottom of the gas detector 4. A through-hole connection hole 212 is provided on the second arc-shaped plate 21 at a position corresponding to the detection end 41. The detection end 41 extends through the connection hole 212 into the interior of the second arc-shaped plate 21 to monitor the gas inside the first enclosure 1 and the second enclosure 2, preventing micro-leakage in the low-pressure gas pipeline network. A through groove 211 is also provided on the side of the second arc-shaped plate 21 for the gas regulating rod 3 to pass through. The gas regulating rod 3 can rotate within the through groove 211 to adjust the gas flow rate in the pipeline. (Refer to...) Figure 5 The first arc-shaped plate 11 has a groove 112 inside, and a sealing piece 12 that partially seals the through groove 211 is slidably connected to the groove 112. By rotating the sealing piece 12, the opening size of the through groove 211 can be adjusted to increase the sealing performance of the first cover 1 and the second cover 2. When it is necessary to rotate the gas regulating rod 3, the sealing piece 12 is rotated to the side away from the gas regulating rod 3, so that the opening size of the through groove 211 is increased, and the gas regulating rod 3 can be rotated to the open position.

[0030] Moreover, refer to Figure 5 and Figure 6 As shown, the top of the first arc-shaped plate 11 and the second arc-shaped plate 21 are provided with mounting grooves 111. The cover 5 is provided with a protruding ring 51 that cooperates with the mounting groove 111. The protruding ring 51 is inserted into the mounting groove 111 so that the cover 5 covers the ends of the first arc-shaped plate 11 and the second arc-shaped plate 21. The sealing sheet 12 is provided with a locking groove 121 near the end of the first arc-shaped plate 11. The cover 5 is provided with a protrusion 52 that cooperates with the locking groove 121. After the cover 5 is placed on the first arc-shaped plate 11 and the second arc-shaped plate 21, the protrusion 52 is inserted into the locking groove 121. By rotating the cover 5, the sealing sheet 12 can be rotated. This structural design facilitates the adjustment of the opening size of the through groove 211.

[0031] Reference Figure 5 As shown, an elastic pressing mechanism 6 for fixing the installation position of the cover 5 is provided on the outside of the first arc-shaped plate 11 and the second arc-shaped plate 21. The elastic pressing mechanism 6 is set on the second arc-shaped plate 21 in the same way as it is set on the first arc-shaped plate 11. The setting of the elastic pressing mechanism 6 on the first arc-shaped plate 11 will be discussed in detail here. The elastic pressing mechanism 6 includes a connecting seat 61 fixedly set on the outer wall of the first arc-shaped plate 11. An L-shaped pressure plate 63 is rotatably connected to the end of the connecting seat 61. A connecting plate 62 is also provided on the connecting seat 61. The connecting plate 62 is located at the bottom of the connecting seat 61. A spring 64 is provided between the end of the L-shaped pressure plate 63 away from the first arc-shaped plate 11 and the connecting plate 62. Under the elastic force of the spring 64, the other end of the L-shaped pressure plate 63 presses against the cover 5, so that the cover 5 can be fixedly installed at the ends of the first arc-shaped plate 11 and the second arc-shaped plate 21.

[0032] This invention seals off areas of the low-pressure gas pipeline network prone to micro-leakage by setting up a first cover 1 and a second cover 2. A second arc-shaped plate 21 provides a monitoring and mounting end for the gas detector 4, which monitors the gas inside the first cover 1 and the second cover 2 via its detection end 41 at the bottom. A through groove 211 on the second arc-shaped plate 21 provides adjustment space for the gas regulating rod 3, allowing the user to adjust its position. A sealing plate 12 inside the first arc-shaped plate 11 partially seals the through groove 211, reducing gas outflow and increasing the accuracy of the gas detector 4. Engaging grooves 121 and protrusions 52 are provided on the sealing plate 12 and the cover 5, respectively. Rotating the cover 5 drives the sealing plate 12 to rotate, adjusting the opening size of the through groove 211. By setting up an elastic clamping mechanism 6, the cover 5 can still rotate after being closed on the first arc-shaped plate 11 and the second arc-shaped plate 21 under the action of the spring 64 in the elastic clamping mechanism 6, which facilitates the adjustment of the opening size of the gas regulating rod 3. The above structural design can monitor the micro-leakage of the low-pressure gas pipeline network in a timely and accurate manner, thereby improving the monitoring efficiency of micro-leakage in the low-pressure gas pipeline network.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. The various components mentioned in this utility model are common technologies in the existing field. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A low-pressure gas pipeline micro-leakage monitoring device, comprising a first cover (1) and a second cover (2) covering the outside of the gas pipeline, characterized in that, The first cover (1) is provided with a first arc plate (11) on the outside, and the second cover (2) is provided with a second arc plate (21) that cooperates with the first arc plate (11) on the outside. A gas detector (4) is provided on the upper part of the second arc plate (21). The second arc plate (21) has a through groove (211) on its side for the gas regulating rod (3) to pass through. The first arc plate (11) has a sealing sheet (12) that partially seals the through groove (211). The ends of the first arc plate (11) and the second arc plate (21) are covered with a cover (5) that drives the sealing sheet (12) to move. The first arc plate (11) and the second arc plate (21) are provided with an elastic pressing mechanism (6) that fixes the installation position of the cover (5).

2. The low-pressure gas pipeline micro-leakage monitoring device according to claim 1, characterized in that, The elastic pressing mechanism (6) is set on the second arc plate (21) in the same way as it is set on the first arc plate (11). The elastic pressing mechanism (6) includes a connecting seat (61) fixedly set on the outer wall of the first arc plate (11). An L-shaped pressure plate (63) is rotatably connected to the end of the connecting seat (61). A connecting plate (62) is also set on the connecting seat (61). The connecting plate (62) is located at the bottom of the connecting seat (61). A spring (64) is set between the end of the L-shaped pressure plate (63) away from the first arc plate (11) and the connecting plate (62). The other end of the L-shaped pressure plate (63) presses against the cover (5).

3. The low-pressure gas pipeline micro-leakage monitoring device according to claim 1, characterized in that, The first arc plate (11) has a sliding groove (112) inside, and a sealing sheet (12) for partially sealing the through groove (211) is slidably connected to the sliding groove (112).

4. The low-pressure gas pipeline micro-leakage monitoring device according to claim 1, characterized in that, The first arc plate (11) and the second arc plate (21) have an installation groove (111) on their tops. The cover (5) has a protruding ring (51) that cooperates with the installation groove (111). The protruding ring (51) is inserted into the installation groove (111).

5. A low-pressure gas pipeline micro-leakage monitoring device according to claim 3, characterized in that, The sealing sheet (12) is provided with a locking groove (121) near the end of the first arc plate (11), and the cover (5) is provided with a protrusion (52) that cooperates with the locking groove (121). The protrusion (52) is inserted into the locking groove (121).

6. The low-pressure gas pipeline micro-leakage monitoring device according to claim 1, characterized in that, The first arc plate (11) is connected to the interior of the first cover (1), and the second arc plate (21) is connected to the interior of the second cover (2). The first cover (1) and the second cover (2) are detachably connected by bolts.

7. The low-pressure gas pipeline micro-leakage monitoring device according to claim 1, characterized in that, Sealing rings (7) are embedded at the upper and lower ends of the first cover (1) and the second cover (2) where they contact the pipe.

8. A low-pressure gas pipeline micro-leakage monitoring device according to any one of claims 1-7, characterized in that, The gas detector (4) has a detection end (41) at the bottom. A through hole (212) is provided on the second arc plate (21) at the position corresponding to the detection end (41). The detection end (41) extends through the through hole (212) into the interior of the second arc plate (21).

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