Exhaust valve capable of preventing air blockage during exhaust
By using a floating barrel and guide sleeve structure with a density lower than water in the exhaust valve, the sealing float is prevented from rising and floating after the water enters, the air blockage prevention and water sealing of the exhaust valve is achieved, and the existing discharge is solved The problem of taking into account both air blockage and water sealing of the air valve.
Patent Information
- Application Number
- CN202421108594.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-21
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-05-21
AI Technical Summary
Existing exhaust valves are prone to gas blockage when the airflow is pressurized, and the weight of the sealing float is increased to prevent gas blockage from causing the water sealing effect to decrease.
An exhaust valve is designed to prevent exhaust gas blockage, adopting a floating cylinder and a sealed float structure, the floating cylinder density is lower than water. Through the cooperation of the guide rod and the guide sleeve, the sealed float ball is prevented from rising, avoiding gas blockage, and in the water. After entering, float the float to achieve water seal.
It effectively prevents the occurrence of air blockage of the exhaust valve, and ensures the water sealing effect of the exhaust valve and avoids water leakage.
Smart Images
Figure CN222255191U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of valves, in particular to an exhaust valve for preventing exhaust gas blockage. Background Art
[0002] Existing exhaust valves generally have an air guide shroud installed in the valve body, and the sealing float is directly placed in the air guide shroud. The gas is diverted along the four sides by the air guide shroud and discharged to the outside of the exhaust valve body through the exhaust port. When the gas flow is pressurized and the flow rate is accelerated, the gas flow appears to be diverted at the upper end of the sealing float, driving the sealing float to rise and fit with the combined sealing ring on the valve cover, preventing the exhaust valve from continuing to exhaust, and gas blockage will occur. If the weight of the sealing float is simply increased, although the gas blockage phenomenon can be eliminated, due to the increase in the weight of the sealing float, the sealing force of the exhaust valve will be reduced, and the water seal of the exhaust valve will leak. Utility Model Content
[0003] The technical problem to be solved by the utility model is to provide an exhaust valve which can prevent exhaust gas blockage, which can prevent the occurrence of exhaust gas blockage and ensure the water sealing effect of the exhaust valve.
[0004] The utility model is implemented through the following scheme:
[0005] A kind of exhaust valve for preventing exhaust gas blockage comprises a valve body, a valve cover, an air guide diverter cover, a float and a sealing float. The bottom of the valve body is provided with a valve body water inlet, the top of the valve body is provided with an exhaust port, the valve cover is fixedly installed at the exhaust port of the valve body, the air guide diverter cover is arranged in the valve body and cooperates with the inner wall of the valve body, a plurality of air guide grooves are arranged on the outer wall of the air guide diverter cover, the bottom of the air guide diverter cover is provided with an air guide diverter cover water inlet, a guide sleeve is provided at the water inlet of the air guide diverter cover, the float is arranged in the air guide diverter cover and cooperates with the inner wall of the air guide diverter cover, the sealing float is arranged in the float and cooperates with the inner wall of the float, a float guide rod is fixedly provided at the bottom of the sealing float, and the float guide rod extends into the guide sleeve.
[0006] Furthermore, a connecting disk is mounted on the top of the guide sleeve, and the connecting disk is connected to the guide sleeve via a locking pin.
[0007] Furthermore, a guide sleeve yielding groove is provided at the bottom of the buoy.
[0008] Furthermore, a combined sealing ring is installed at the exhaust port.
[0009] Furthermore, the density of the buoy is lower than the density of water.
[0010] Optimally, the float is made of polyethylene.
[0011] Furthermore, a plurality of reinforcing ribs are fixedly installed on the outer wall of the air guide splitter cover, and the gaps between the plurality of reinforcing ribs form air guide grooves.
[0012] Beneficial effects of the utility model:
[0013] The utility model provides an exhaust valve for preventing exhaust gas blockage. When the exhaust valve is exhausting, the sealing float is prevented from rising by setting the float and the float guide rod, so as to avoid the exhaust valve being blocked. After the exhaust valve has completed exhausting, when water arrives, the float floats up. When the float rises to a certain water level of the exhaust valve, the sealing float floats up, so that the sealing float floats alone on the water surface and blocks the exhaust port, fits with the combined sealing ring on the valve cover, realizes the water seal of the exhaust valve, and prevents the exhaust valve from leaking. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the structure of the utility model.
[0015] In the figure: 1. valve body; 2. air guide diverter cover; 3. float; 4. air guide groove; 5. sealing float; 6. combined sealing ring; 7. valve cover; 8. exhaust port; 9. float guide rod; 10. locking pin; 11. connecting plate; 12. guide sleeve; 13. valve body water inlet; 14. guide sleeve clearance groove. DETAILED DESCRIPTION
[0016] An exhaust valve for preventing exhaust gas blockage, the specific structure is as follows Figure 1 As shown, it comprises a valve body 1, a valve cover 7, an air guide and diverter cover 2, a float 3 and a sealing float 5. The bottom of the valve body is provided with a valve body water inlet 13, the top of the valve body is provided with an exhaust port 8, and the valve cover is fixedly installed at the exhaust port of the valve body;
[0017] The air guide shroud is arranged in the valve body and cooperates with the inner wall of the valve body. The air guide shroud can be made of the same material as the valve body, generally made of cast iron or other metal materials, and its density is much greater than the density of water. The air guide shroud can be directly placed in the valve body. Since it cooperates with the inner wall of the valve body, it does not need to be fixed in any way and will not shake. It can also be fixed by some necessary fixed connection methods.
[0018] The outer wall of the air guide shroud is provided with a plurality of air guide grooves 4, the bottom of the air guide shroud is provided with an air guide shroud water inlet, the water inlet of the air guide shroud is provided with a guide sleeve 12, the float is provided in the air guide shroud and cooperates with the inner wall of the air guide shroud, the sealing float is provided in the float and cooperates with the inner wall of the float, a float guide rod 9 is fixedly provided at the bottom of the sealing float, and the float guide rod extends into the guide sleeve. The setting of the guide sleeve ensures that the sealing float will not deviate from the exhaust port during the floating process, and the guide sleeve can be provided separately or integrally formed with the water inlet of the air guide shroud.
[0019] When the exhaust valve is exhausting, the setting of the float and the float guide rod can prevent the sealing float from rising, so as to avoid air blockage of the exhaust valve. After the exhaust valve completes exhausting, water enters from the water inlet of the valve body and the float floats up. When the float rises to a certain water level of the exhaust valve, the sealing float will float up, so that the sealing float floats alone on the water surface and blocks the exhaust port, fitting with the combined sealing ring on the valve cover, thereby realizing the water seal of the exhaust valve and preventing the exhaust valve from leaking.
[0020] Furthermore, a connecting plate 11 is mounted on the top of the guide sleeve, and the connecting plate and the guide sleeve are connected by a locking pin 10. A connecting plate is provided to be connected to the guide sleeve by a locking pin, and the locking force of the locking pin can not only limit the float guide rod to a certain extent when the exhaust valve is exhausting, preventing the sealing float from floating up, but also allow the float guide rod to overcome the restraint of the locking force of the locking pin after water enters and float on the water surface alone, thereby blocking the exhaust port and fitting with the combined sealing ring on the valve cover to form a good water seal.
[0021] Furthermore, a guide sleeve yielding groove 14 is provided at the bottom of the float, so that a better fit can be formed between the float and the air guide splitter cover.
[0022] Furthermore, a combined sealing ring 6 is installed at the exhaust port to ensure a water-tight effect.
[0023] Furthermore, the density of the float is lower than the density of water, which ensures that after water enters the exhaust valve, the float can float under the buoyancy of water.
[0024] Optimized, the float is made of polyethylene. The float is made of polyethylene material, and the specific gravity of polyethylene material is about 0.97kg / m 3 About, slightly lower than the specific gravity of water. After water enters the exhaust valve, the float can float under the buoyancy of water. It is made of polyethylene material, has good chemical stability, strong acid and alkali corrosion resistance, and has good insulation properties.
[0025] Furthermore, a plurality of reinforcing ribs are fixedly installed on the outer wall of the air guide shroud, and the gaps between the plurality of reinforcing ribs form air guide grooves. The provision of the reinforcing ribs can not only enhance the strength of the air guide shroud and form a stable support for the air guide shroud, but also form a plurality of air guide grooves to facilitate the gas to flow along the guide grooves toward the exhaust port.
[0026] In summary, the exhaust valve for preventing exhaust gas blockage provided in the present application can eliminate the exhaust valve gas blockage phenomenon and balance the water sealing effect of the exhaust valve at the same time.
[0027] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. An exhaust valve for preventing exhaust gas blockage, characterized in that: It includes a valve body, a valve cover, an air guide diverter cover, a float and a sealing float. The bottom of the valve body is provided with a valve body water inlet, the top of the valve body is provided with an exhaust port, the valve cover is fixedly installed at the exhaust port of the valve body, the air guide diverter cover is arranged in the valve body and cooperates with the inner wall of the valve body, a plurality of air guide grooves are arranged on the outer wall of the air guide diverter cover, the bottom of the air guide diverter cover is provided with an air guide diverter cover water inlet, a guide sleeve is provided at the water inlet of the air guide diverter cover, the float is arranged in the air guide diverter cover and cooperates with the inner wall of the air guide diverter cover, the sealing float is arranged in the float and cooperates with the inner wall of the float, a float guide rod is fixedly provided at the bottom of the sealing float, and the float guide rod extends into the guide sleeve.
2. The exhaust valve for preventing exhaust gas blockage according to claim 1, characterized in that: A connecting disk is sleeved on the top of the guide sleeve, and the connecting disk is connected to the guide sleeve through a locking pin.
3. The exhaust valve for preventing exhaust gas blockage according to claim 2, characterized in that: A guide sleeve yielding groove is arranged at the bottom of the buoy.
4. The exhaust valve for preventing exhaust gas blockage according to claim 1, characterized in that: A combined sealing ring is installed at the exhaust port.
5. The exhaust valve for preventing exhaust gas blockage according to claim 1, characterized in that: The density of the buoy is lower than the density of water.
6. The exhaust valve for preventing exhaust gas blockage according to claim 5, characterized in that: The buoy is made of polyethylene.
7. The exhaust valve for preventing exhaust gas blockage according to claim 1, characterized in that: A plurality of reinforcing ribs are fixedly mounted on the outer wall of the air guide splitter cover, and the gaps between the plurality of reinforcing ribs form air guide grooves.