A pressure monitoring device for a gas network

Abstract

The utility model relates to pressure monitoring related technical field of gas pipe network discloses a pressure monitoring device for gas pipe network, including gas pipeline, detection pipe, detection room and gas pressure detection table, the gas pressure detection table is screwed in the connecting pipe fixed in the detection room upper end, and the lower extreme of gas pressure detection table is fixed with the fixed cover, the detection room telescopic connection has sealed plugging assembly, sealed plugging assembly includes the rubber sealing plate of moving back and forth in the detection room and the rubber pad plate fixed in the rubber sealing plate front and back two sides. The pressure monitoring device for gas pipe network, when detecting pressure anomaly, control module sends out abnormal signal in time and carries out alarm processing through external alarm, improves personnel attention maintenance, carries out plugging to the detection room through sealed plugging assembly, can guarantee to realize dismounting maintenance and replacement operation on the basis of normal conveying gas.

Description

Technical Field

[0001] This utility model relates to the technical field of pressure monitoring of gas pipeline networks, specifically a pressure monitoring device for gas pipeline networks. Background Technology

[0002] The gas pipeline network system is an urban gas transmission and distribution network infrastructure composed of pipelines, valves, metering equipment and control systems. It undertakes the function of transporting gas media such as natural gas. In the daily operation of the gas pipeline network, the pipeline pressure is the core parameter to ensure gas safety and stable gas supply. Therefore, it is necessary to monitor the pressure of the gas pipeline network with the help of pressure monitoring devices. As disclosed in announcement number CN222278267U, a gas pipeline pressure safety monitoring device includes a pressure gauge body and a gas pipe. Several fixing plates are provided on the outside of the pressure gauge body. An air inlet pipe is provided in the middle of the bottom of the pressure gauge body. A docking assembly is provided at the bottom of the air inlet pipe. The docking assembly includes a threaded pipe, a threaded cylinder, a first connecting pipe and a second connecting pipe. A support assembly is provided on the outer surface of the threaded pipe. The support assembly includes a first fixing plate, a second fixing plate, a fixing screw and a fixing hole. A sealing assembly is provided at the top of the threaded cylinder. Through the first fixing plate and the second fixing plate, in conjunction with the fixing screw and the fixing hole, the pressure gauge body can be supported by the outwardly extending cross-shaped first fixing plate and second fixing plate when it is installed and docked with the second connecting pipe. This increases the support area and force-bearing points after installation, making the installation more stable. However, existing technologies have the problem that when installing, removing, or maintaining the pressure gauge, the entire pipeline needs to be shut off, which affects the delivery of gas. There is a lack of a way to seal the pipeline during the pressure gauge maintenance process. For example, the comparative patents listed above have this problem. To address this issue, we propose a pressure monitoring device for gas pipeline networks. Utility Model Content

[0003] The purpose of this utility model is to provide a pressure monitoring device for gas pipeline networks, in order to solve the problem mentioned in the background art that when installing, removing or maintaining the pressure gauge, it is necessary to shut down the entire pipeline, which affects the gas supply, and there is a lack of a sealing mechanism to seal the pipeline during the pressure gauge maintenance process.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a pressure monitoring device for a gas pipeline network, comprising a gas pipeline, a detection pipe, a detection chamber, and a gas pressure gauge; Also includes: The gas pressure gauge is threaded into a connecting pipe fixed at the upper end of the testing chamber, and a fixing cover is fixed at the lower end of the gas pressure gauge. The connecting pipe and the fixing cover are locked together by fastening bolts that pass through the left and right sides of the fixing cover. The gas pressure gauge has a detachable structure at the upper end of the testing chamber. The testing chamber is telescopically connected to a sealing and plugging assembly, which includes a rubber sealing plate that moves back and forth within the testing chamber and rubber pads fixed to the front and rear sides of the rubber sealing plate. In the disassembled state, the front rubber pad is attached to the front side of the testing chamber, and the rear rubber pad is attached to the inner side of the rear end of the testing chamber. In the monitoring state, the rear rubber pad moves forward and is attached to the inner side of the front end of the testing chamber.

[0005] Preferably, the gas pipeline and the detection pipe are sealed together by a flange, a threaded rod, and a nut.

[0006] Preferably, the detection end of the gas pressure gauge extends into the detection chamber, and the detection chamber is fixed to the upper end of the detection tube, and the detection tube is connected to the detection chamber. The gas pressure gauge is electrically connected to an external control module and alarm device.

[0007] Preferably, a sealing ring is provided on the inner side of the upper end of the fixing cover and the upper end of the connecting pipe.

[0008] Preferably, the rubber sealing plate is limited to the test chamber by fixing components set on the left and right sides of the test chamber. The fixing components include movable side plates fixed to the left and right ends of the front rubber pad, fixing plates fixed to the front and rear ends of the outer side of the test chamber, fixing rods fixed to the rear end of the movable side plates, and fixing caps for locking and limiting.

[0009] Preferably, the movable side plate is disposed through the fixed plate, and the movable side plate drives the fixed rod to engage in the fixed plate at the corresponding position.

[0010] Preferably, the fixing rod and the fixing cap are threaded together, and the fixing cap is engaged in the fixing plate at the corresponding position.

[0011] Compared with the prior art, the beneficial effects of this utility model are: the pressure monitoring device for gas pipeline networks facilitates the sealed installation and disassembly maintenance of gas pressure gauges. When an abnormal pressure is detected, the control module promptly transmits the abnormal signal and triggers an alarm through an external alarm, raising awareness of maintenance. When a gas pressure gauge malfunctions and needs repair or disassembly, the detection chamber is sealed by the sealing and plugging components, eliminating the need to shut off the gas supply. This ensures that disassembly, repair, and replacement operations can be performed while maintaining normal gas supply. 1. Equipped with a gas pressure gauge, control module, and alarm. When the gas pressure gauge detects an abnormal gas pressure, the control module will promptly trigger an alarm on the external device, alerting relevant personnel to perform timely maintenance. 2. It is equipped with a fixed cover, connecting pipe, sealing ring and fastening bolt. The lower end of the gas pressure test gauge is threaded in the connecting pipe. The sealing ring is fitted between the connecting pipe and the fixed cover to facilitate the sealed installation of the gas pressure test gauge. At the same time, the fastening bolt runs through the left and right sides of the fixed cover to facilitate further locking of the gas pressure test gauge after installation. 3. A sealing and plugging assembly is provided, which includes a rubber sealing plate that can be telescopically moved in the testing chamber and rubber pads fixed at the front and rear ends of the rubber sealing plate. With the setting of the sealing and plugging assembly, the gas pressure test gauge can be disassembled, maintained and replaced while ensuring the normal gas supply. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the overall structure of the detection tube, detection chamber, and gas pressure gauge of this utility model; Figure 3 This is an exploded structural diagram of the gas pressure gauge, fixing cover, connecting pipe, sealing ring and fastening bolts of this utility model. Figure 4 This is a bottom-view exploded structural diagram of the gas pressure gauge, fixing cover, connecting pipe and sealing ring of this utility model; Figure 5 This is a schematic diagram of the rubber sealing plate of this utility model being removed from the testing chamber. Figure 6 This is an exploded structural diagram of the rubber sealing plate, movable side plate, fixed plate and fixed cap of this utility model.

[0013] In the diagram: 1. Gas pipeline; 2. Detection pipe; 3. Detection chamber; 4. Gas pressure gauge; 5. Fixing cover; 6. Connecting pipe; 7. Sealing ring; 8. Fastening bolt; 9. Rubber sealing plate; 10. Rubber pad; 11. Movable side plate; 12. Fixing plate; 13. Fixing rod; 14. Fixing cap. 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 Figures 1-6 The present invention provides the following technical solution: To address the issues in existing technologies where installing, removing, or maintaining pressure gauges requires shutting down the entire pipeline, affecting gas delivery, and where there's a lack of proper pipeline sealing during pressure gauge maintenance, this solution provides a pressure monitoring device for gas pipeline networks. The device comprises a gas pipeline 1, a detection pipe 2, a detection chamber 3, and a gas pressure gauge 4. The gas pressure gauge 4 is threadedly connected to a connecting pipe 6 fixed to the upper end of the detection chamber 3, and a fixing cover 5 is fixed to the lower end of the gas pressure gauge 4. The connecting pipe 6 and the fixing cover 5 are connected by a... Fastening bolts 8 running through the left and right sides of the fixed cover 5 are locked. The gas pressure test gauge 4 forms a disassembly structure at the upper end of the test chamber 3. A sealing and plugging assembly is telescopically connected in the test chamber 3. The sealing and plugging assembly includes a rubber sealing plate 9 that moves back and forth in the test chamber 3 and rubber pads 10 fixed on the front and rear sides of the rubber sealing plate 9. In the disassembled state, the front rubber pad 10 is attached to the front side of the test chamber 3, and the rear rubber pad 10 is attached to the inner side of the rear end of the test chamber 3. In the monitoring state, the rear rubber pad 10 moves forward and is attached to the inner side of the front end of the test chamber 3. like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the gas pipeline 1 and the detection pipe 2 are sealed and connected by a flange, threaded rod and nut. The upper end of the detection pipe 2 is fixedly connected to the detection chamber 3, and the upper end of the detection chamber 3 is fixedly connected to the fixing cover 5. First, the detection end of the gas pressure gauge 4 is inserted into the detection chamber 3 through the connecting pipe 6. Then, the gas pressure gauge 4 is rotated. The lower end of the gas pressure gauge 4 is threaded into the connecting pipe 6, and the outer side of the lower end of the gas pressure gauge 4 is fixedly connected to the connecting pipe 6. A sealing ring 7 is fitted between the upper end of the connecting pipe 6 and the fixing cover 5, so that the gas pressure gauge 4 can be sealed and installed above the detection chamber 3. By fastening bolts 8 are respectively installed through the left and right ends of the fixing cover 5, the fixing cover 5 and the connecting pipe 6 can be locked, improving the stability of the gas pressure gauge 4 installation. The rubber sealing plate 9 is moved forward to loosen the seal on the detection chamber 3, so that it is in the open state, and then the fixing component is used to limit the position. Furthermore, the gas pressure gauge 4 is electrically connected to an external control module and alarm device. When the gas pressure gauge 4 detects an abnormal pressure in the gas supplied in the detection pipe 2, the control module receives the abnormal signal and immediately activates the external alarm device to alert personnel to handle the situation promptly. Additionally, the fixing components include movable side plates 11 fixed to the left and right ends of the front rubber pad 10, fixing plates 12 fixed to the front and rear ends of the outer side of the detection chamber 3, a fixing rod 13 fixed to the rear end of the movable side plate 11, and a fixing cap 14 for locking and limiting. When disassembly, maintenance, repair, or replacement of the gas pressure gauge 4 is required, such as... Figure 5 and Figure 6 As shown, firstly, by rotating the fixing cap 14 threaded onto the outer surface of the fixing rod 13, the fixing cap 14 disengages from the fixing rod 13 and from the front fixing plate 12, thereby releasing the limiting effect between the fixing rod 13 and the front fixing plate 12. Then, the rubber sealing plate 9 is pushed backward, and the movable side plate 11 slides within the front fixing plate 12. The movable side plate 11 causes the fixing rod 13 to insert into the rear fixing plate 12, and the fixing rod 13 engages with the rear fixing plate 12. Then, the fixing cap is rotated... 14. Fix the fixing rod 13 to the fixing plate 12 at the rear end, limit the rubber sealing plate 9 to the detection chamber 3, move the rubber sealing plate 9 backward, and fit the rubber sealing plate 9 against the inner wall of the detection chamber 3, so that the front rubber pad 10 fits against the front side of the detection chamber 3, and the rear rubber pad 10 fits against the inner side of the rear end of the detection chamber 3, thereby sealing the detection chamber 3. After sealing, the gas pressure gauge 4 can be disassembled, maintained, and replaced without affecting the gas transmission.

[0016] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pressure monitoring device for a gas pipeline network, comprising a gas pipeline (1), a detection pipe (2), a detection chamber (3), and a gas pressure gauge (4); Its features are, Also includes: The gas pressure test gauge (4) is threaded into the connecting pipe (6) fixed at the upper end of the test chamber (3), and the lower end of the gas pressure test gauge (4) is fixed with a fixing cover (5). The connecting pipe (6) and the fixing cover (5) are locked together by fastening bolts (8) that pass through the left and right sides of the fixing cover (5). The gas pressure gauge (4) is designed to be disassembled at the upper end of the testing chamber (3); The detection chamber (3) is telescopically connected with a sealing and plugging assembly. The sealing and plugging assembly includes a rubber sealing plate (9) that moves back and forth in the detection chamber (3) and rubber pads (10) fixed on the front and rear sides of the rubber sealing plate (9). In the disassembled state, the front rubber pad (10) is attached to the front side of the detection chamber (3), and the rear rubber pad (10) is attached to the inner side of the rear end of the detection chamber (3). In the monitoring state, the rear rubber pad (10) moves forward and is attached to the inner side of the front end of the detection chamber (3).

2. The pressure monitoring device for a gas pipeline network according to claim 1, characterized in that: The gas pipeline (1) and the detection pipe (2) are sealed together by a flange, a threaded rod and a nut.

3. The pressure monitoring device for a gas pipeline network according to claim 1, characterized in that: The gas pressure gauge (4) has its detection end inserted into the detection chamber (3), and the detection chamber (3) is fixed to the upper end of the detection tube (2). The detection tube (2) is connected to the detection chamber (3), and the gas pressure gauge (4) is electrically connected to the external control module and alarm device.

4. A pressure monitoring device for a gas pipeline network according to claim 1, characterized in that: A sealing ring (7) is provided on the inner side of the upper end of the fixing cover (5) and the upper end of the connecting pipe (6).

5. A pressure monitoring device for a gas pipeline network according to claim 1, characterized in that: The rubber sealing plate (9) and the test chamber (3) are limited by fixing components set on the left and right sides of the test chamber (3). The fixing components include movable side plates (11) fixed at the left and right ends of the front rubber pad (10), fixing plates (12) fixed at the front and rear ends of the outer side of the test chamber (3), fixing rods (13) fixed at the rear end of the movable side plates (11), and fixing caps (14) for locking and limiting.

6. A pressure monitoring device for a gas pipeline network according to claim 5, characterized in that: The movable side plate (11) is installed through the fixed plate (12), and the movable side plate (11) drives the fixed rod (13) to engage in the fixed plate (12) at the corresponding position.

7. A pressure monitoring device for a gas pipeline network according to claim 5, characterized in that: The fixing rod (13) and the fixing cap (14) are threaded together, and the fixing cap (14) is engaged in the fixing plate (12) at the corresponding position.

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