Exhaust valve for exhausting high-pressure starting gas in pipeline
By designing a push-type exhaust valve that integrates exhaust, locking and reset functions, the safety hazards and operational complexity of high-pressure gas emissions in the gas fire extinguishing system are solved, and the convenience of exhaust and system safety and efficiency are achieved. .
Patent Information
- Application Number
- CN202420461352.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-11
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2034-03-11
AI Technical Summary
In the gas fire extinguishing system, the high-pressure gas in the starting pipeline poses safety risks, and the existing exhaust valve structure is complex and easy to operate incorrectly, resulting in long and inconvenient exhaust time and easy to lead to gas leakage.
Design a push-button exhaust valve that integrates exhaust, locking and reset functions, eliminates the screw tool, adopts a push-button design, and ensures safety and convenience through limit pins and return springs.
The structure of the exhaust valve is simplified, the chance of malfunctioning is reduced, the safety and efficiency of the system during startup and maintenance is ensured, and gas leakage and high-pressure gas residues are avoided.
Smart Images
Figure CN222316021U_ABST
Abstract
Description
Technical Field
[0001] The utility model provides an improved exhaust valve structure, in particular to an exhaust valve for exhausting high-pressure starting gas in a pipeline. Background Art
[0002] In a conventional gas fire extinguishing system, when the gas fire extinguishing system is started normally, the driving gas bottle group is directly opened, a large amount of driving gas enters the starting pipeline, the pressure in the starting pipeline rises sharply, and the driving gas opens the fire extinguishing agent bottle group in the corresponding protection area along the starting pipeline.
[0003] At present, under normal fire extinguishing conditions or after trial spraying, the gas in the starting pipeline always remains in the pipeline (not participating in fire extinguishing). When maintenance personnel dismantle the gas fire extinguishing system that has been sprayed, it also involves dismantling the starting pipeline (containing high-pressure gas). There is still high-pressure gas in the driving gas bottle group and the starting pipeline, posing a safety hazard.
[0004] After research, an exhaust valve was developed to discharge the high-pressure starting gas in the pipeline. However, a new problem arose. That is, when exhausting, there is more gas in the starting pipeline and the exhaust time is long. It is cumbersome to open the exhaust valve by screwing in the screws, and the screws are easy to lose. On the other hand, the screw-in method of opening the exhaust valve is prone to misoperation, causing the exhaust valve to always be in the open state, which ultimately causes the driving gas to leak and fail to start the fire extinguishing system. Utility Model Content
[0005] In view of the above problems, the utility model provides an exhaust valve for exhausting high-pressure starting gas in a pipeline. The exhaust valve has a simple structure and is convenient for exhausting, and integrates exhausting, locking and resetting functions.
[0006] To this end, the utility model adopts the following technical solution: an exhaust valve for high-pressure starting gas in a discharge pipeline, comprising a valve body and a valve core, a starting pipeline connection port being arranged on the side of the valve body, and characterized in that an exhaust button is arranged on the upper part of the valve core, and pressing down the exhaust button triggers the valve core to move downward to discharge gas from the mufflers on both sides of the valve body, and a limit piece is arranged on the upper part of the valve core to limit the downward pressure of the valve core.
[0007] Preferably, the limiting member is a latch.
[0008] Preferably, the valve core is integrally connected to the exhaust button or the upper portion of the valve core is screwed to the exhaust button via a screw.
[0009] Preferably, a horizontal through hole is provided on the screw rod, and the latch pin is inserted into the through hole.
[0010] Preferably, a return spring and a clamping nut are arranged at the bottom of the valve core, and a thread is arranged at the bottom of the valve core to match the clamping nut.
[0011] Preferably, the silencer is symmetrically arranged on both sides of the valve body, and the silencer comprises a filter element, a hole elastic retaining ring and a small gasket which are arranged in sequence from the inside to the outside.
[0012] Preferably, a plurality of sealing rings are arranged between the valve core and the valve body from bottom to top.
[0013] Preferably, a joint nut is sleeved outside the starting pipeline connection port.
[0014] Preferably, a pressure cap is provided on the upper portion of the valve body.
[0015] The utility model redesigns the structure of the exhaust valve, cancels the exhaust tool (screw), directly adopts a button design, and has a locking mechanism, and the button has a pin to prevent accidental touch. The overall structure is simple and reasonable, integrating exhaust, locking, and reset functions, with a small appearance, which can effectively reduce the probability of false operation. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.
[0017] Figure 2 It is a cross-sectional view of the utility model.
[0018] Figure 3 It is another side sectional view of the utility model.
[0019] In the figure: 1-exhaust button, 2-valve core, 3-muffler, 4-latch, 5-starting pipe connection port, 6-reset spring, 7-tightening nut, 8-valve body, 9-sealing ring 10-filter element 11-elastic retaining ring for hole 12-small washer 13-pressure cap 14-connector nut 15-thread. DETAILED DESCRIPTION
[0020] The present invention is further described below in conjunction with specific embodiments.
[0021] like Figure 1-Figure 3 The exhaust valve for high-pressure starting gas in the exhaust pipeline shown in the figure comprises a valve body 8 and a valve core 2. A starting pipeline connection port 5 is arranged on the side of the valve body 8, and an exhaust button 1 is arranged on the upper part of the valve core 2. The exhaust button 1 is pressed down to trigger the valve core 2 to move downward to exhaust the gas from the muffler 3 on both sides of the valve body. A limiter is arranged on the upper part of the valve core 2 to limit the downward pressure of the valve core. The structure of the exhaust valve is redesigned, the exhaust tool (screw) is cancelled, and a button-type design is directly adopted. When the exhaust button is pressed, the valve core moves downward, and the gas in the starting pipeline is discharged from the muffler.
[0022] Specifically, the valve core 10 is connected to the exhaust button 1 as a whole or the upper part of the valve core is screwed to the exhaust button 1 through a screw.
[0023] Specifically, a horizontal through hole is provided on the screw rod, and the latch pin 4 is inserted into the through hole. A limit pin is added to the button to prevent accidental touch.
[0024] Specifically, a reset spring 6 and a clamping nut 7 are provided at the bottom of the valve core 2, and a thread 15 is provided at the bottom of the valve core 2 to match the clamping nut 7. When the exhaust time is too long, the operator can press the exhaust button, rotate it to the locking thread to lock it, and unlock it when the exhaust is finished, and reset the latch; before removing the pipeline, the operator can also confirm whether there is high-pressure gas in the start-up pipeline by pressing the reset button.
[0025] In one embodiment, the silencer 3 is symmetrically arranged on both sides of the valve body 8, and the silencer 3 includes a filter element 10, a hole elastic retaining ring 11 and a small gasket 12 which are arranged in sequence from the inside to the outside.
[0026] In order to improve the sealing performance, a plurality of sealing rings 9 are arranged between the valve core and the valve body from bottom to top.
[0027] In one structure, a joint nut 14 is sleeved on the outside of the starting pipeline connection port 5, and a pressure cap 13 is arranged on the upper part of the valve body.
[0028] The working process of the utility model is as follows: the exhaust valve has a simple structure, integrates exhaust, locking and reset functions, has a small appearance, and can effectively reduce the probability of malfunction. The interface on the right side of the exhaust valve is connected to the starting pipeline. Under abnormal circumstances, even if there is no latch, the valve core will always be in a closed state due to the thrust of the spring, thereby ensuring that the starting pipeline is in a closed state and avoiding leakage when the system is in operation.
[0029] When the system is started in a normal way, the driving gas bottle group quickly increases the pressure in the starting pipeline, and the exhaust valve is in a closed state. After the system is started, the gas in the starting pipeline remains in the starting pipeline. The maintenance personnel use the reset button to push open the valve core and lock it to keep the exhaust valve in an open state. At this time, the pressure in the starting pipeline is discharged into the atmosphere through the muffler.
[0030] When the personnel are performing exhaust operation, they can choose to press the exhaust button (when the exhaust volume is not much), or exhaust for a long time through the locking mechanism. When the exhaust is finished, the exhaust valve is reset with a latch to ensure that the exhaust valve is in a closed state when it is operated next time.
[0031] It should be understood that these embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the claims attached to this application.
Claims
1. An exhaust valve for exhausting high-pressure starting gas in a pipeline, comprising a valve body (8) and a valve core (2), a starting pipeline connection port (5) being arranged on the side of the valve body (8), characterized in that An exhaust button (1) is arranged on the upper part of the valve core (2). When the exhaust button (1) is pressed downward, it triggers the valve core (2) to move downward to exhaust gas from the silencers (3) on both sides of the valve body. A limiter is arranged on the upper part of the valve core (2) to limit the downward pressure of the valve core.
2. The exhaust valve for exhausting high-pressure starting gas in the pipeline according to claim 1, characterized in that The limiting member is a latch (4).
3. The exhaust valve for exhausting high-pressure starting gas in a pipeline according to claim 2, characterized in that The valve core (2) is integrally connected to the exhaust button (1) or the upper part of the valve core is screwed to the exhaust button (1) via a screw rod.
4. The exhaust valve for exhausting high-pressure starting gas in a pipeline according to claim 3, characterized in that A horizontal through hole is provided on the screw rod, and the latch pin (4) is inserted into the through hole.
5. The exhaust valve for exhausting high-pressure starting gas in a pipeline according to claim 4, characterized in that A return spring (6) and a clamping nut (7) are arranged at the bottom of the valve core (2), and a thread (15) is arranged at the bottom of the valve core (2) to match the clamping nut (7).
6. An exhaust valve for exhausting high-pressure starting gas in a pipeline according to claim 5, characterized in that The silencer (3) is symmetrically arranged on both sides of the valve body (8), and comprises a filter element (10), a hole elastic retaining ring (11) and a small gasket (12) which are arranged in sequence from the inside to the outside.
7. The exhaust valve for exhausting high-pressure starting gas in a pipeline according to claim 1, characterized in that A plurality of sealing rings (9) are arranged between the valve core and the valve body from bottom to top.
8. The exhaust valve for exhausting high-pressure starting gas in a pipeline according to claim 1, characterized in that A joint nut (14) is sleeved outside the starting pipeline connection port (5).
9. The exhaust valve for exhausting high-pressure starting gas in a pipeline according to claim 1, characterized in that A pressure cap (13) is arranged on the upper part of the valve body.