Exhaust valve with air leakage protection function

Abstract

The utility model discloses an exhaust valve with an air leakage protection function, which belongs to the technical field of air leakage protection and comprises an exhaust valve body, the top of the left side of the exhaust valve body is communicated with a pressure relief mechanism, and the left side of the pressure relief mechanism is communicated with a discharge mechanism. The exhaust valve body can support and limit the pressure relief mechanism, the pressure relief mechanism can support and limit the exhaust mechanism, the pressure relief pipe can guide overhigh-pressure gas in the exhaust valve body to the exhaust mechanism, it is ensured that pressure is safely released, and the exhaust valve and the whole system are prevented from being damaged; the supporting block provides a stable installation position for the rotating rod, the stability of the rotating structure is guaranteed, the rotating rod serves as a support and a rotating support of the rotating shaft, the pressure relief plate can flexibly rotate, effective pressure relief operation is achieved, and the telescopic spring rod can enable the pressure relief plate to be kept in a closed state when the pressure is normal.

Description

Technical Field

[0001] The utility model relates to the technical field of air leakage protection, in particular to an exhaust valve with an air leakage protection function. Background Art

[0002] When gas overflows from the system, the gas will climb up along the pipe and eventually gather at the highest point of the system. The exhaust valve is generally installed at the highest point of the system. When the gas enters the exhaust valve cavity, it gathers at the upper part of the exhaust valve. In order to avoid damage to the device due to excessive gas, an exhaust valve needs to be installed during use. The exhaust valve is used for pipeline exhaust in independent heating systems, central heating systems, heating boilers, central air conditioning, floor heating, solar heating systems, etc.

[0003] In the prior art, it is not convenient for users to judge the amount of gas inside the exhaust valve body during use, and the general sealing cover is screwed into the exhaust pipe for sealing. When the gas pressure inside is too high, manually screwing the sealing cover may cause danger, thereby reducing the protection effect of the device;

[0004] The existing patent (publication number: CN217951353U) is an exhaust valve with air leakage protection. When there is too much gas inside the exhaust valve, resulting in excessive pressure, the air pressure detector set in the sealing cover will issue an early warning. At this time, you only need to press the push rod to make the push rod push the limit plate. The limit plate rotates and loses the limit on the buckle. The sealing cover loses the limit and the sealing cover can be opened to allow the exhaust valve to exhaust, thereby improving the protection effect of the device.

[0005] In view of the above problems, the existing patent provides a solution, but it lacks a structure to release the excessively high pressure gas in the exhaust valve, resulting in the user having to manually release the pressure through an early warning, which reduces the safety of the user during pressure release.

[0006] Therefore, an exhaust valve with a gas leakage protection function is proposed. Utility Model Content

[0007] The purpose of the utility model is to provide an exhaust valve with a gas leakage protection function, which can solve the problem that the existing gas leakage protection structure releases the gas with excessive pressure in the exhaust valve, resulting in the user needing to manually release the pressure through an early warning, thereby reducing the safety of the user during pressure release.

[0008] To achieve the above object, the utility model provides the following technical solution: an exhaust valve with a deflation protection function, comprising an exhaust valve body, the top of the left side of the exhaust valve body is connected to a pressure relief mechanism, and the left side of the pressure relief mechanism is connected to a discharge mechanism;

[0009] The pressure relief mechanism includes a pressure relief pipe, a support block, a rotating rod, a telescopic spring rod, a rotating shaft and a pressure relief plate, the pressure relief pipe is connected to the top of the left side of the exhaust valve body, the discharge mechanism is connected to the side of the pressure relief pipe away from the exhaust valve body, the support block is fixedly connected to both sides of the top of the inner side of the pressure relief pipe, the rotating rod is bolted to the opposite side of the two support blocks, the top of the telescopic spring rod is bolted to the left side of the two support blocks, the bottom of the telescopic spring rod is bolted to the top of the left side of the pressure relief plate, the rotating shaft is rotatably connected to the surface of the rotating rod, and the pressure relief plate is bolted to the bottom of the rotating shaft.

[0010] Preferably, the discharge mechanism includes a gradually expanding pipe, a gradually contracting pipe, a guide plate, a guide pipe and an exhaust pipe, and the gradually expanding pipe is connected to the left side of the pressure relief pipe.

[0011] Preferably, the reducer is connected to the left side of the expander, and the guide plate is bolted to the inner sides of the expander and reducer.

[0012] Preferably, the guide pipe is connected to the left side of the convergent pipe, and the exhaust pipe is connected to the top of the guide pipe.

[0013] Preferably, the guide plate is made of metal foam material, and the surface of the guide plate is coated with anti-corrosion paint.

[0014] Preferably, a dustproof filter is bolted to the inner side of the exhaust pipe, and the surface of the dustproof filter is coated with anti-corrosion paint.

[0015] Preferably, a protective pad is provided on the surface of the pressure relief plate, and a moisture-proof agent is coated on the surface of the protective pad.

[0016] Preferably, a spoiler is bolted to the inner side of the pressure relief pipe, a guide hole is opened on the surface of the spoiler, and the guide hole is set as an inclined surface.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. The exhaust valve body of the present application can support and limit the pressure relief mechanism, the pressure relief mechanism can support and limit the discharge mechanism, the pressure relief pipe can guide the excessively high pressure gas in the exhaust valve body to the discharge mechanism, to ensure that the pressure is safely released and to avoid damage to the exhaust valve body and the entire system. The support block provides a stable installation position for the rotating rod, to ensure the stability of the rotating structure, the rotating rod serves as the support and rotation support of the rotating shaft, so that the pressure relief plate can be flexibly rotated to achieve effective pressure relief operation, the telescopic spring rod can keep the pressure relief plate in a closed state when the pressure is normal, when the pressure inside the exhaust valve body is too high, the pressure will squeeze the pressure relief plate toward the inside of the pressure relief pipe, the telescopic spring rod will contract due to the excessive pressure, drive the pressure relief plate to rotate toward the inside of the pressure relief pipe, so that the excessive pressure enters the inside of the discharge mechanism, The telescopic spring rod plays the role of automatic adjustment and reset. After the pressure is discharged, it drives the pressure relief plate to reset, which enhances the timeliness and accuracy of pressure relief. The rotating shaft ensures that the pressure relief plate can rotate flexibly and smoothly, and open and close in response to pressure changes. The pressure relief plate automatically opens and closes according to the pressure change, effectively controlling the pressure relief of the gas and ensuring that the system pressure is within a safe range. The gradually expanding tube helps to reduce the gas flow rate, reduce the impact force during gas discharge, and reduce noise and vibration. The gradually contracting tube can increase the gas flow rate, improve the discharge efficiency, and discharge the gas quickly. The guide vane can guide the gas flow, reduce turbulence, make the gas discharge more stable and orderly, and improve the discharge effect. The guide pipe guides the gas to flow in a specific direction to avoid chaos and disorder in gas discharge. The exhaust pipe provides an outlet channel for the final discharged gas to safely discharge the depressurized gas to a designated location.

[0019] 2. Compared with the existing exhaust valve, the present application achieves the goal of relieving the pressure inside the exhaust valve body when the pressure inside the exhaust valve body is too high through the cooperation of the pressure relief mechanism and the discharge mechanism, thereby maintaining the pressure inside the exhaust valve body at a safe value, without the need for manual pressure relief by the user, thereby improving the safety of the exhaust valve when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is the overall structural diagram of the exhaust valve with air leakage protection function of the utility model;

[0021] Figure 2 A diagram of a rotating rod of the utility model;

[0022] Figure 3 A diagram of a guide vane of the utility model;

[0023] Figure 4 A diagram of a pressure relief plate of the utility model;

[0024] Figure 5 For this utility model Figure 3 A magnified schematic diagram of center A.

[0025] In the figure, 1. exhaust valve body; 2. pressure relief mechanism; 201. pressure relief pipe; 202. support block; 203. rotating rod; 204. telescopic spring rod; 205. rotating shaft; 206. pressure relief plate; 3. discharge mechanism; 301. gradually expanding pipe; 302. gradually contracting pipe; 303. guide vane; 304. guide pipe; 305. exhaust pipe; 4. dust filter; 5. protective pad; 6. spoiler; 7. guide hole. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-5 , the utility model provides a technical solution:

[0028] An exhaust valve with a deflation protection function comprises an exhaust valve body 1, a pressure relief mechanism 2 is connected to the top of the left side of the exhaust valve body 1, and a discharge mechanism 3 is connected to the left side of the pressure relief mechanism 2;

[0029] The pressure relief mechanism 2 includes a pressure relief pipe 201, a support block 202, a rotating rod 203, a telescopic spring rod 204, a rotating shaft 205 and a pressure relief plate 206. The pressure relief pipe 201 is connected to the top of the left side of the exhaust valve body 1, and the discharge mechanism 3 is connected to the side of the pressure relief pipe 201 away from the exhaust valve body 1. The support block 202 is fixedly connected to both sides of the top of the inner side of the pressure relief pipe 201, the rotating rod 203 is bolted to the opposite side of the two support blocks 202, the top of the telescopic spring rod 204 is bolted to the left side of the two support blocks 202, the bottom of the telescopic spring rod 204 is bolted to the top of the left side of the pressure relief plate 206, the rotating shaft 205 is rotatably connected to the surface of the rotating rod 203, and the pressure relief plate 206 is bolted to the bottom of the rotating shaft 205.

[0030] In this embodiment: by setting the exhaust valve body 1, the pressure relief mechanism 2 can be supported and limited, the pressure relief mechanism 2 can support and limit the discharge mechanism 3, the pressure relief pipe 201 can guide the excessively high pressure gas in the exhaust valve body 1 to the discharge mechanism 3, to ensure that the pressure is safely released, and avoid damage to the exhaust valve body 1 and the entire system, the support block 202 provides a stable installation position for the rotating rod 203, to ensure the stability of the rotating structure, the rotating rod 203 serves as a support and rotation support for the rotating shaft 205, so that the pressure relief plate 206 can be flexibly rotated to achieve effective pressure relief operation, the telescopic spring rod 204 can keep the pressure relief plate 206 in a closed state when the pressure is normal, when the pressure inside the exhaust valve body 1 is too high, the pressure will squeeze the pressure relief plate 206 toward the inside of the pressure relief pipe 201, the telescopic spring rod 204 will contract due to the excessive pressure, drive the pressure relief plate 206 to rotate toward the inside of the pressure relief pipe 201, so that the excessive pressure The force enters the inner side of the discharge mechanism 3, and the telescopic spring rod 204 plays the role of automatic adjustment and reset. After the pressure is discharged, the pressure relief plate 206 is driven to reset, which enhances the timeliness and accuracy of the pressure relief. The rotating shaft 205 ensures that the pressure relief plate 206 can rotate flexibly and smoothly, and open and close in response to the pressure change. The pressure relief plate 206 automatically opens and closes according to the pressure change, effectively controls the pressure relief of the gas, and ensures that the system pressure is within a safe range. The gradually expanding tube 301 helps to reduce the gas flow rate, reduce the impact force during gas discharge, and reduce noise and vibration. The gradually converging tube 302 can increase the gas flow rate, improve the discharge efficiency, and discharge the gas quickly. The guide plate 303 can guide the gas flow, reduce turbulence, make the gas discharge more stable and orderly, and improve the discharge effect. The guide pipe 304 guides the gas to flow in a specific direction to avoid chaos and disorder in gas discharge. The exhaust pipe 305 provides an outlet channel for the final discharged gas to safely discharge the depressurized gas to a designated location.

[0031] Specifically, Figure 3 , Figure 4 , Figure 5 As shown, the discharge mechanism 3 includes a gradually expanding pipe 301 , a gradually contracting pipe 302 , a guide vane 303 , a guide pipe 304 and an exhaust pipe 305 , and the gradually expanding pipe 301 is connected to the left side of the pressure relief pipe 201 .

[0032] Specifically, Figure 3 , Figure 4 As shown, the reducer 302 is connected to the left side of the expander 301 , and the guide vane 303 is bolted to the inner sides of the expander 301 and the reducer 302 .

[0033] Specifically, Figure 3 As shown, the guide pipe 304 is connected to the left side of the reducer pipe 302 , and the exhaust pipe 305 is connected to the top of the guide pipe 304 .

[0034] In this embodiment: by setting the gradually expanding pipe 301, when the gas enters the gradually expanding pipe 301 from the pressure relief pipe 201, its flow rate will be reduced, thereby reducing the impact force of the gas, helping to reduce the generation of noise and vibration, and reducing the risk of damage to the pipeline and surrounding equipment. By setting the gradually contracting pipe 302, the flow rate of the gas increases when passing through the gradually contracting pipe 302, which can improve the discharge efficiency, make the gas discharge more quickly, reduce the residence time in the pipeline, and reduce the possibility of pressure accumulation. By setting the guide plate 303, the guide plate 303 is bolted to the gradually expanding pipe 301 and The inner wall of the tapered tube 302 can guide and rectify the flow of gas, reduce gas turbulence and vortexes, and make the gas flow smoother and more orderly. By setting the guide pipe 304, the guide pipe 304 can accurately guide the gas passing through the tapered tube 302 to a specific direction, avoid chaos and disorder in gas emission, and ensure the safety and controllability of emission. By setting the exhaust pipe 305, the exhaust pipe 305 serves as the final discharge channel for the gas, providing a clear outlet for emission, ensuring that the gas can be safely and effectively discharged into the external environment.

[0035] Specifically, Figure 3 As shown, the guide plate 303 is made of metal foam material, and the surface of the guide plate 303 is coated with anti-corrosion paint.

[0036] Specifically, Figure 5 As shown, a dust filter 4 is bolted to the inner side of the exhaust pipe 305, and the surface of the dust filter 4 is coated with anti-corrosion paint.

[0037] In this embodiment: by setting the guide plate 303 to be made of metal foam material, the metal foam material has a good pore structure, which can further increase the contact area between the gas and the guide plate 303, enhance the rectification and guidance effect of the gas, and make the gas flow more stable and orderly, and by setting the anti-corrosion coating, the guide plate 303 can be protected from corrosion in harsh working environments, especially when it contacts corrosive gases, thereby extending its service life and ensuring long-term stable guidance function, and by setting the dust filter 4, the dust filter 4 is bolted to the inside of the exhaust pipe 305, which can effectively block external dust and impurities from entering the exhaust valve body 1, prevent these impurities from accumulating in the pipeline, and affect the normal operation and performance of the exhaust valve body 1, and by setting the anti-corrosion coating, the dust filter 4 can be prevented from being corroded, ensuring that it is not damaged during long-term use and maintaining a good filtering effect.

[0038] Specifically, Figure 2 , Figure 4 As shown, the surface of the pressure relief plate 206 is covered with a protective pad 5, and the surface of the protective pad 5 is coated with a moisture-proof agent.

[0039] Specifically, Figure 2As shown, a spoiler 6 is bolted to the inner side of the pressure relief pipe 201 , and a guide hole 7 is opened on the surface of the spoiler 6 , and the guide hole 7 is set as an inclined surface.

[0040] In this embodiment: by providing a protective pad 5, the protective pad 5 sleeved on the surface of the pressure relief plate 206 can reduce the collision and wear of the pressure relief plate 206 with other components during the opening and closing process, extend the service life of the pressure relief plate 206, and can provide a certain buffering effect, reduce the impact on the pressure relief plate 206, and enhance its structural stability. By providing a desiccant, the protective pad 5 can be prevented from absorbing moisture, and the performance of the protective pad 5 can be avoided from being reduced or damaged due to a humid environment, thereby always maintaining its good protective effect. By providing a spoiler 6, the spoiler 6 can disrupt the flow of gas, so that the flow of gas in the pressure relief pipe 201 is more uniform, avoiding excessive local pressure. By providing a guide hole 7, the guide hole 7 can guide the gas to flow in a specific direction. By providing the guide hole 7 as an inclined surface, the flow path of the gas is further optimized and the pressure relief efficiency is improved.

[0041] Working principle: First, when the gas pressure in the exhaust valve body 1 is within the normal range, the telescopic spring rod 204 is in an extended state, prompting the pressure relief plate 206 to remain closed, thereby preventing the gas from leaking from the pressure relief pipe 201. Then, once the pressure in the exhaust valve body 1 is too high, the pressure generated by the gas will squeeze the pressure relief plate 206. The strong pressure will overcome the resistance of the telescopic spring rod 204, causing the telescopic spring rod 204 to contract, thereby driving the pressure relief plate 206 to rotate around the rotating shaft 205 and open toward the inside of the pressure relief pipe 201. After that, the over-pressure gas immediately enters the relief pipe 201. The spoiler 6 on the inner side of the pressure pipe 201 and the pressure relief pipe 201 will disrupt the flow of gas. The inclined guide hole 7 on the surface of the spoiler 6 can further optimize the flow path of the gas. When the gas enters the gradually expanding pipe 301, the flow velocity decreases, the impact force decreases accordingly, and the noise and vibration are also reduced accordingly. Then, the flow velocity of the gas increases when passing through the gradually converging pipe 302, which improves the emission efficiency and enables the gas to be discharged quickly. When the gas contacts the guide plate 303, it guides and rectifies the gas. Finally, the gas continues to flow through the guide pipe 304, and the gas after the pressure is released is discharged from the exhaust pipe 305.

[0042] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An exhaust valve with a gas leakage protection function, comprising an exhaust valve body (1), characterized in that: The top of the left side of the exhaust valve body (1) is connected to a pressure relief mechanism (2), and the left side of the pressure relief mechanism (2) is connected to a discharge mechanism (3); The pressure relief mechanism (2) comprises a pressure relief pipe (201), a support block (202), a rotating rod (203), a telescopic spring rod (204), a rotating shaft (205) and a pressure relief plate (206); the pressure relief pipe (201) is connected to the top of the left side of the exhaust valve body (1); the discharge mechanism (3) is connected to the side of the pressure relief pipe (201) away from the exhaust valve body (1); the support block (202) is fixedly connected to both sides of the top of the inner side of the pressure relief pipe (201); the rotating rod (203) is bolted to the opposite side of the two support blocks (202); the top of the telescopic spring rod (204) is bolted to the left side of the two support blocks (202); the bottom of the telescopic spring rod (204) is bolted to the top of the left side of the pressure relief plate (206); the rotating shaft (205) is rotatably connected to the surface of the rotating rod (203); and the pressure relief plate (206) is bolted to the bottom of the rotating shaft (205).

2. The exhaust valve with air leakage protection function according to claim 1, characterized in that: The discharge mechanism (3) comprises a gradually expanding pipe (301), a gradually contracting pipe (302), a guide plate (303), a guide pipe (304) and an exhaust pipe (305); the gradually expanding pipe (301) is connected to the left side of the pressure relief pipe (201).

3. The exhaust valve with air leakage protection function according to claim 2, characterized in that: The reducer (302) is connected to the left side of the expander (301), and the guide plate (303) is bolted to the inner sides of the expander (301) and the reducer (302).

4. The exhaust valve with air leakage protection function according to claim 3, characterized in that: The guide pipe (304) is connected to the left side of the reducer pipe (302), and the exhaust pipe (305) is connected to the top of the guide pipe (304).

5. The exhaust valve with air leakage protection function according to claim 3, characterized in that: The guide plate (303) is made of a metal foam material, and the surface of the guide plate (303) is coated with an anti-corrosion paint.

6. The exhaust valve with air leakage protection function according to claim 5, characterized in that: A dustproof filter (4) is bolted to the inner side of the exhaust pipe (305), and the surface of the dustproof filter (4) is coated with an anti-corrosion paint.

7. The exhaust valve with air leakage protection function according to claim 1, characterized in that: The surface of the pressure relief plate (206) is covered with a protective pad (5), and the surface of the protective pad (5) is coated with a moisture-proof agent.

8. The exhaust valve with air leakage protection function according to claim 1, characterized in that: A spoiler (6) is bolted to the inner side of the pressure relief pipe (201), a guide hole (7) is provided on the surface of the spoiler (6), and the guide hole (7) is configured as an inclined surface.

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