Community pipeline gas valve leakage protection device
By designing valve leakage protection devices in the community gas pipeline network, and using the combination of first- and second-level protection devices, the safety hazards caused by valve leakage are solved, real-time monitoring and normal delivery of gas are achieved.
Patent Information
- Application Number
- CN202421552723.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-03
- Publication Date
- 2025-04-18
- Estimated Expiration
- 2034-07-03
AI Technical Summary
Valves in the community gas pipeline network are prone to leakage due to external factors after long-term service. The existing detection instruments are mainly used to find leakage points rather than real-time monitoring, which poses a major safety hazard.
A community pipeline gas valve leakage protection device is designed, including a first-level protection device (sealed protective cover, gas detector, controller and alarm) and a second-level protection device (left, right, upper solenoid valve). When the valve leaks, the first-level protection device prevents gas leakage, and the second-level protection device cuts off the leakage path to ensure normal gas delivery.
Effectively prevent gas leakage, promptly warn of leakage, ensure normal gas delivery, and reduce safety hazards in the community gas pipeline network.
Smart Images
Figure CN222773058U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of gas transmission protection devices, in particular to a community pipeline gas valve leakage protection device. Background Art
[0002] In recent years, natural gas has become more and more popular in urban areas as a high-quality and clean energy source, the urban gas industry has developed rapidly, and buried gas pipelines, as the lifeline of the city, have been distributed in various communities in the city.
[0003] In a community gas pipeline network, valves are important sub-assemblies of the community gas pipeline network, which are used to cut off, connect, and regulate the gas in the gas pipeline. They have good control characteristics and closing and sealing performance. However, the valve is installed in the gas pipeline as a sub-assembly. Even if it is installed tightly, it will inevitably be damaged by external factors after a long period of service, and even leakage will occur. There are currently instruments specifically used to detect gas leaks, but they are generally used to find the leakage point when a leak occurs, rather than real-time monitoring. If a gas valve leaks during use and is not detected in time, there will be great safety hazards for communities with many residents. In response to this phenomenon, the present application proposes a community pipeline gas valve leakage protection device. Utility Model Content
[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a community pipeline gas valve leakage protection device, which solves the problem of the technical solution is to include a left main pipe, characterized in that the outlet end of the left main pipe is flange-connected with the inlet end of the valve body, the outlet end of the valve body is flange-connected with the inlet end of the right main pipe, and the outer side of the valve body is arranged with a primary protection device and a secondary protection device used in conjunction with the primary protection device;
[0005] The first-level protection device includes a sealing protection cover fixedly connected to the outer edge of the valve body, a mounting hole is integrally arranged on the upper end of the sealing protection cover, the rotating shaft of the valve body is rotatably connected to the mounting hole, a gas detector is fixedly connected to the inner wall of the upper side of the sealing protection cover, a controller electrically connected to the gas detector is fixedly connected to the lower end of the sealing protection cover, an alarm electrically connected to the controller is fixedly connected to the lower end of the sealing protection cover, and a vent pipe is fixedly connected to the vent pipe, and a sealing plug is sealed and inserted.
[0006] Preferably, the secondary protection device includes a left solenoid valve installed at the outlet end of the left main pipe and electrically connected to the controller, a right solenoid valve electrically connected to the controller is installed at the inlet end of the right main pipe, the upper edge of the left main pipe is fixedly connected to the inlet end of the upper branch pipe, the outlet end of the upper branch pipe is fixedly connected to the upper edge of the right main pipe, the inlet end of the upper branch pipe is located on the left side of the left solenoid valve, the outlet end of the upper branch pipe is located on the right side of the right electric measuring valve, and an upper solenoid valve electrically connected to the controller is installed in the middle of the upper branch pipe.
[0007] Preferably, a sealing treatment is performed at a connection between the rotating shaft of the valve body and the mounting hole, and the rotating shaft of the valve body extends upwardly out of the mounting hole and is fixedly connected with a rotating rod.
[0008] The beneficial effects of the utility model are:
[0009] When the utility model is in use, when the valve body leaks, the sealing protection cover of the primary protection device can block the gas leaking from the valve body to prevent the gas from further leaking out. When the gas detector in the sealing protection cover detects the information of gas leakage, the gas detector transmits the information to the controller. The controller will activate the alarm to generate a buzzer to warn after receiving the information. At the same time, the controller will also activate the secondary protection device. When the secondary protection device is activated, the left solenoid valve and the right solenoid valve will be closed under the action of the controller, thereby cutting off the passage at the valve body. At the same time, the controller will also open the upper solenoid valve, and the gas will change the route to flow through the left main pipe, the upper branch pipe and the right branch pipe instead of flowing through the valve body, thereby ensuring that the gas can circulate normally, thereby ensuring the normal transportation of the gas. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 This is a partially cutaway stereoscopic view of the utility model from the first viewing angle.
[0011] Figure 2 It is an enlarged view of area A in the partially cutaway stereoscopic view from the first viewing angle of the utility model.
[0012] Figure 3 This is a stereoscopic view from a second viewing angle of the present invention.
[0013] Reference numerals
[0014] 1. Left main pipe, 2. Valve body, 3. Right main pipe, 4. Primary protection device, 5. Secondary protection device, 6. Sealing protection cover, 7. Mounting hole, 8. Gas detector, 9. Controller, 10. Alarm, 11. Vent pipe, 12. Sealing plug, 13. Left solenoid valve, 14. Right solenoid valve, 15. Upper branch pipe, 16. Upper solenoid valve, 17. Turning rod, 18. Rotating shaft. DETAILED DESCRIPTION
[0015] The following is combined with Figure 1-3 The specific implementation methods of the utility model are further described in detail.
[0016] Embodiment 1, the technical solution is that during the use of the utility model, when the valve body 2 leaks, the sealing protection cover 6 of the primary protection device 4 can block the gas leaking from the valve body 2 to prevent the gas from further leaking. When the gas detector 8 in the sealing protection cover 6 detects the information of gas leakage, the gas detector 8 transmits this information to the controller 9. The controller 9 will start the alarm 10 to generate a buzzer to warn after receiving this information. At the same time, the controller 9 will also start the secondary protection device 5. When the secondary protection device 5 is started, the left solenoid valve 13 and the right solenoid valve 14 will be closed under the action of the controller 9, thereby cutting off the passage at the valve body 2. At the same time, the controller 9 will also open the upper solenoid valve 16, and the gas will change the route to flow through the left main pipe 1, the upper branch pipe 15 and the right branch pipe instead of flowing through the valve body 2, ensuring that the gas can circulate normally, thereby ensuring the normal transportation of the gas.
[0017] Embodiment 2, based on embodiment 1, under normal circumstances, for gas, the left solenoid valve 13 and the right solenoid valve 14 are in a normally open state, and the upper solenoid valve 16 is in a normally closed state, and the gas circulates from the left main pipe 1, the valve body 2 and the right main pipe 3 to ensure the normal operation of the gas network.
[0018] When the valve body 2 leaks, the leaked gas will be blocked in the sealing protective cover 6. When the concentration in the sealing protective cover 6 reaches the set standard, it will trigger the gas detector 8. The gas detector 8 will detect the gas leakage information and pass this information to the controller 9. The controller 9 will control the alarm 10 to sound an alarm to prompt the staff.
[0019] Furthermore, when a gas leak is found at the valve body 2, in order to ensure that the gas can still be transported normally, a secondary protection device 5 is also provided. When the gas detector 8 detects a gas leak, the controller 9 will also control the left solenoid valve 13 and the right solenoid valve 14 to close, and at the same time, the controller 9 will also control the upper solenoid valve 16 to open. At this time, the gas route will change, and the gas will be transported from the left main pipe 1, the upper branch pipe 15 and the right branch pipe, instead of passing through the valve body 2, to avoid further leakage of the gas, and at the same time, to ensure the normal transportation of the gas. Under the action of the secondary protection device 5, the gas can be transported normally without passing through the valve body 2. At this time, the valve body 2 can also be disassembled for maintenance without affecting the normal transportation of the gas. When maintaining the valve body 2, in order to ensure safety, the sealing plug 12 can be pulled out under safe conditions, so that the gas in the sealing cover is discharged through the vent pipe 11.
[0020] Embodiment 3, on the basis of embodiment 2, the valve body 2 can be an existing suitable valve, and the valve body 2 can be opened and closed by rotating the rotating shaft 18 of the valve body 2, and the rotating rod 17 can facilitate the rotation of the valve body 2. The connection between the rotating shaft 18 of the valve body 2 and the mounting hole 7 is sealed to ensure the sealing of the primary protection device 4.
Claims
1. A community pipeline gas valve leakage protection device, comprising a left main pipe (1), characterized in that: The outlet end of the left main pipe (1) is flange-connected to the inlet end of the valve body (2), and the outlet end of the valve body (2) is flange-connected to the inlet end of the right main pipe (3). A primary protection device (4) and a secondary protection device (5) used in conjunction with the primary protection device (4) are arranged outside the valve body (2); The primary protection device (4) comprises a sealing protective cover (6) integrally fixedly connected to the outer edge of the valve body (2); a mounting hole (7) is integrally arranged at the upper end of the sealing protective cover (6); a rotating shaft (18) of the valve body (2) is rotatably connected to the mounting hole (7); a gas detector (8) is fixedly connected to the inner wall of the upper side of the sealing protective cover (6); a controller (9) electrically connected to the gas detector (8) is fixedly connected to the lower end of the sealing protective cover (6); an alarm (10) electrically connected to the controller (9) is fixedly connected to the lower end of the sealing protective cover (6); a gas release pipe (11) is fixedly connected to the lower end of the sealing protective cover (6); and a sealing plug (12) is sealed and inserted into the gas release pipe (11).
2. A community pipeline gas valve leakage protection device according to claim 1, characterized in that: The secondary protection device (5) comprises a left solenoid valve (13) installed at the outlet end of the left main pipe (1) and electrically connected to the controller (9); a right solenoid valve (14) electrically connected to the controller (9) is installed at the inlet end of the right main pipe (3); the inlet end of an upper branch pipe (15) is fixedly connected to the upper edge of the left main pipe (1); the outlet end of the upper branch pipe (15) is fixedly connected to the upper edge of the right main pipe (3); the inlet end of the upper branch pipe (15) is located on the left side of the left solenoid valve (13); the outlet end of the upper branch pipe (15) is located on the right side of the right electric measuring valve; and an upper solenoid valve (16) electrically connected to the controller (9) is installed in the middle of the upper branch pipe (15).
3. A community pipeline gas valve leakage protection device according to claim 1, characterized in that: The connection between the rotating shaft (18) of the valve body (2) and the mounting hole (7) is sealed, and the rotating shaft (18) of the valve body (2) extends upwards out of the mounting hole (7) and is fixedly connected to the rotating rod (17).