Oil separation ventilation valve

Abstract

The utility model discloses an oil separation ventilation valve, and relates to the technical field of ventilation valves. The oil separation ventilation valve comprises a valve bonnet and an oil drop sedimentation structure, the oil drop sedimentation structure comprises a waterproof ventilation film, a ventilation valve body, a first filter cartridge A, a second filter cartridge B, a gas guide ring, a lower gas circulation opening, an upper gas circulation opening, an annular circulation groove and a gas circulation groove, the waterproof ventilation film is arranged at the bottom of the valve bonnet, and the ventilation valve body is arranged at the bottom of the valve bonnet. The waterproof breathable film is located between the valve bonnet and the breathable valve body, oil mist gas is blocked through the action of the annular circulation groove and the gas circulation groove, then the condensation effect is achieved, part of oil mist liquid can flow back, and the oil mist liquid can be filtered through the first filter cartridge A and the second filter cartridge B under the action of gravity. Oil particles that have agglomerated into larger oil droplets can be returned to a gearbox or an associated oil collection container, and oil droplet sedimentation is directed through a physical design, thereby reducing recirculation and further contamination of oil mist.

Description

Technical Field

[0001] This utility model relates to the field of vent valve technology, and in particular to an oil-separated vent valve. Background Technology

[0002] A vent valve is a device used for waterproofing, ventilation, and pressure balancing. It combines a waterproof and breathable membrane with other materials such as plastic, metal, and silicone to form a sealed installation component. The working principle of the vent valve is based on the microporous structure of the waterproof and breathable membrane. The diameter of the micropores in the waterproof and breathable membrane is between 0.1-10μm, while the diameter of gas molecules is only about 0.0004μm. Therefore, gas can pass through smoothly, while liquid water, with its larger diameter, cannot pass through the micropores, thus achieving a waterproof effect. When the external water pressure is higher than the internal air pressure, the vent valve can prevent external moisture from entering and maintain a dry internal environment. When the internal air pressure is higher than the external water pressure, the vent valve can expel internal gas, maintaining internal and external air pressure balance and preventing excessive pressure difference from damaging the internal structure.

[0003] CN220470742U discloses a vent valve, including a valve cap and a valve body. The valve cap contains a protective component for protecting a waterproof and breathable membrane. This protective component includes a waterproof and breathable membrane, a one-way valve seat, a first valve membrane, and an upper valve body. The waterproof and breathable membrane is connected to the upper valve body by adhesive or welding. The one-way valve seat is connected to the upper valve body by interference fit or adhesive. The upper end face of the second valve membrane is connected to the lower end face of the upper valve body, and the lower end face of the second valve membrane is connected to the upper end face of the valve body. This invention effectively separates the internal medium from the waterproof and breathable membrane, effectively reducing damage and blockage caused by internal media such as oil and gas, and improving the membrane's service life. This is especially beneficial in environments containing corrosive media such as oil and gas, reducing the requirements for membrane quality and lowering costs. However, this vent valve lacks an oil droplet settling structure. Some oil particles that coalesce into larger droplets are not easily returned to the gearbox or related oil collection containers, causing oil mist recirculation and further contamination. Therefore, an oil-separating vent valve is needed. Utility Model Content

[0004] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide an oil-separated vent valve that can solve the problem that the vent valve does not have an oil droplet settling structure, and some oil particles that agglomerate into larger oil droplets are not easy to return to the gearbox or related oil collection container, causing oil mist recirculation and leading to further pollution.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an oil-water separating and venting valve, comprising a valve cap and an oil droplet settling structure. The oil droplet settling structure includes a waterproof and breathable membrane, a venting valve body, a first filter cylinder A, a second filter cylinder B, a gas guide ring, a lower gas flow port, an upper gas flow port, an annular flow groove, and a gas flow groove. The waterproof and breathable membrane is disposed at the bottom of the valve cap, and the venting valve body is disposed at the bottom of the valve cap. The waterproof and breathable membrane is located between the valve cap and the venting valve body, and is in contact with the venting valve body. The first filter cylinder A is fixedly connected inside the venting valve body, and the second filter cylinder B... Cylinder B is fixedly connected inside the vent valve body. The second filter cylinder B is fixedly connected to the bottom of the first filter cylinder A. The gas guide ring is set inside the vent valve body. The lower gas flow port is opened on the outer surface of the gas guide ring. The upper gas flow port is opened on the outer surface of the gas guide ring. The annular flow groove is opened on the outer surface of the gas guide ring. The lower gas flow port is connected to the annular flow groove. The upper gas flow port is connected to the annular flow groove. The lower gas flow port is located at the bottom of the upper gas flow port. The gas flow groove is opened at the top of the gas guide ring. The gas flow groove is connected to the upper gas flow port.

[0006] Preferably, a first spring A is fixedly connected inside the vent valve body, a first valve seat A is fixedly connected to the bottom of the first spring A, a valve diaphragm A is provided at the bottom of the first valve seat A, and a valve diaphragm B is provided at the bottom of the valve diaphragm A.

[0007] Preferably, a second spring B is fixedly connected to the bottom of the first valve seat A, and a second valve seat B is provided at the bottom of the second spring B. The second valve seat B is slidably connected to the inner wall of the vent valve body, and the first valve seat A is slidably connected to the inner wall of the vent valve body.

[0008] Preferably, a sealing gasket is fixedly connected to the surface of the vent valve body.

[0009] Preferably, the vent valve body has a first receiving groove inside, and the second valve seat B is adapted to the first receiving groove, with the second valve seat B located inside the first receiving groove.

[0010] Preferably, the inside of the vent valve body is provided with a second receiving groove, and the valve diaphragm A, valve diaphragm B and second valve seat B are all located inside the second receiving groove.

[0011] Preferably, the vent valve body has a third receiving groove inside, and the first valve seat A is adapted to the third receiving groove, with the first valve seat A located inside the third receiving groove.

[0012] Preferably, the inside of the vent valve body is provided with a filter cartridge mounting groove A and a filter cartridge mounting groove B, wherein the filter cartridge mounting groove A is adapted to the second filter cartridge B, and the filter cartridge mounting groove B is adapted to the first filter cartridge A.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This oil-water vent valve uses an annular flow channel and a gas flow channel to block oil mist gas, thereby producing a condensation effect. It can return a portion of the oil mist liquid. Through the first filter cartridge A and the second filter cartridge B, gravity allows oil particles that have agglomerated into larger oil droplets to return to the gearbox or related oil collection container. Through physical design, it guides the oil droplets to settle, thereby reducing the recirculation of oil mist and further pollution. This solves the problem that the vent valve does not have an oil droplet settling structure, and some oil particles that have agglomerated into larger oil droplets are not easy to return to the gearbox or related oil collection container, causing oil mist recirculation and further pollution. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0016] Figure 1 This is a schematic diagram of the main body of this utility model;

[0017] Figure 2 This is a plan view of the present invention;

[0018] Figure 3 This is a schematic diagram of the gas guide ring of this utility model;

[0019] Figure 4 This is a schematic diagram of the gas flow channel of this utility model;

[0020] Figure 5 This is an exploded view of the present invention.

[0021] Reference numerals: 1. Valve cap; 2. Waterproof and breathable membrane; 3. Breathable valve body; 4. First filter cartridge A; 5. Second filter cartridge B; 6. Gas guide ring; 7. Sealing gasket; 8. First spring A; 9. First valve seat A; 10. Valve diaphragm A; 11. Valve diaphragm B; 12. Second spring B; 13. Second valve seat B; 14. Lower gas flow port; 15. Upper gas flow port; 16. Annular flow groove; 17. Gas flow groove; 18. First receiving groove; 19. Second receiving groove; 20. Third receiving groove; 21. Filter cartridge mounting groove A; 22. Filter cartridge mounting groove B. Detailed Implementation

[0022] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0023] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0025] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0026] Please see Figure 1-5 This utility model provides a technical solution: an oil-water separating and venting valve, including a valve cap 1 and an oil droplet settling structure. The oil droplet settling structure includes a waterproof and breathable membrane 2, a venting valve body 3, a first filter cylinder A4, a second filter cylinder B5, a gas guide ring 6, a lower gas flow port 14, an upper gas flow port 15, an annular flow groove 16, and a gas flow groove 17. The waterproof and breathable membrane 2 is disposed at the bottom of the valve cap 1, and the venting valve body 3 is disposed at the bottom of the valve cap 1. The waterproof and breathable membrane 2 is located between the valve cap 1 and the venting valve body 3, and is in contact with the venting valve body 3. The first filter cylinder A4 is fixedly connected to the inside of the venting valve body 3, and the second filter cylinder B5 is fixedly connected to the... Inside the vent valve body 3, the second filter cartridge B5 is fixedly connected to the bottom of the first filter cartridge A4. The gas guide ring 6 is located inside the vent valve body 3. The lower gas flow port 14 is opened on the outer surface of the gas guide ring 6, the upper gas flow port 15 is opened on the outer surface of the gas guide ring 6, and the annular flow groove 16 is opened on the outer surface of the gas guide ring 6. The lower gas flow port 14 is connected to the annular flow groove 16, and the upper gas flow port 15 is connected to the annular flow groove 16. The lower gas flow port 14 is located at the bottom of the upper gas flow port 15. The gas flow groove 17 is opened at the top of the gas guide ring 6 and is connected to the upper gas flow port 15.

[0027] Furthermore, a first spring A8 is fixedly connected inside the vent valve body 3, a first valve seat A9 is fixedly connected to the bottom of the first spring A8, a valve diaphragm A10 is provided at the bottom of the first valve seat A9, a valve diaphragm B11 is provided at the bottom of the valve diaphragm A10, a second spring B12 is fixedly connected to the bottom of the first valve seat A9, a second valve seat B13 is provided at the bottom of the second spring B12, the second valve seat B13 is slidably connected to the inner wall of the vent valve body 3, the first valve seat A9 is slidably connected to the inner wall of the vent valve body 3, and a sealing gasket 7 is fixedly connected to the surface of the vent valve body 3.

[0028] Furthermore, the vent valve body 3 has a first receiving groove 18 inside, and a second valve seat B13 is adapted to the first receiving groove 18. The second valve seat B13 is located inside the first receiving groove 18. The vent valve body 3 has a second receiving groove 19 inside, and valve diaphragm A10, valve diaphragm B11, and second valve seat B13 are all located inside the second receiving groove 19. The vent valve body 3 has a third receiving groove 20 inside, and a first valve seat A9 is adapted to the third receiving groove 20. The first valve seat A9 is located inside the third receiving groove 20. The vent valve body 3 has a filter cartridge mounting groove A21 and a filter cartridge mounting groove B22 inside. The filter cartridge mounting groove A21 is adapted to the second filter cartridge B5, and the filter cartridge mounting groove B22 is adapted to the first filter cartridge A4.

[0029] Furthermore, when the oil mist gas inside the vent valve body 3 needs to be discharged to the outside, the oil mist gas first enters from the lower gas flow port 14 and passes through the annular flow groove 16, and then exits into the gas flow groove 17 through the upper gas flow port 15. It is then discharged through the opening on the gas flow groove 17 that connects to the outside, thereby slowing down the gas flow speed and producing a condensation effect. This allows some of the oil mist liquid to flow back. The first filter cylinder A4 and the second filter cylinder B5 are fixedly installed inside the vent valve body 3 by positioning columns and form an inclination with the side wall. Through gravity, the oil particles that have agglomerated into larger oil droplets can return to the gearbox or related oil collection container. When the internal pressure of the vent valve body 3 is less than the atmospheric pressure, the gas enters the vent valve body 3 through the waterproof and breathable membrane 2, and at the same time opens the first valve seat A9. Since the internal gas pressure is less than the external atmospheric pressure, the second valve seat B13 closes. When the internal pressure of the vent valve body 3 is greater than the atmospheric pressure, the gas opens the second valve seat B13. Since the internal gas pressure is less than the external atmospheric pressure, the first valve seat A9 closes.

[0030] Furthermore, the annular flow channel 16 and the gas flow channel 17 block the oil mist gas, making the flow path of the oil mist gas longer and slowing down the airflow speed. When the oil mist airflow encounters resistance, some oil mist particles will be trapped. After the airflow passes through the labyrinthine annular flow channel 16, it begins to enter the cyclone spiral gas flow channel 17. The gas flow path is extended by the action of the airflow. Since this sealing surface is connected to the outside, a temperature difference is generated, which in turn produces a condensation effect, allowing some oil mist liquid to flow back. Through the first filter cylinder A4 and the second filter cylinder B5, the oil particles that have agglomerated into larger oil droplets can return to the gearbox or related oil collection container by gravity. The physical design guides the oil droplets to settle, thereby reducing the recirculation of oil mist and further pollution. This solves the problem that the vent valve does not have an oil droplet settling structure, and some oil particles that have agglomerated into larger oil droplets are not easy to return to the gearbox or related oil collection container, causing the recirculation of oil mist and leading to further pollution.

[0031] Structural Description: Valve Cap 1: The valve cover of the oil-separated vent valve, which has the same function as the cover of a regular vent valve;

[0032] Waterproof and breathable membrane 2: It is placed between the valve cap 1 and the breathable valve body 3 to allow gas to pass through while preventing water from passing through;

[0033] Vent valve body 3: The body of the oil-separated vent valve, used for gas flow;

[0034] First filter cartridge A4: It is fixed inside the breather valve body 3 and is made of oleophobic and hydrophobic materials, specifically a combination of wool felt and glass fiber.

[0035] The second filter cartridge B5 is fixed inside the breather valve body 3. It is the same as the first filter cartridge A4 and is mainly made of oleophobic and hydrophobic materials. Specifically, it can be made of a combination of wool felt and glass fiber.

[0036] Gas guide ring 6: Located inside the vent valve body 3, it is used to slow down the gas flow rate and block the gas;

[0037] Sealing gasket 7: Located on the outside of the vent valve body 3, used for sealing the device;

[0038] First spring A8: Fixed between the vent valve body 3 and the first valve seat A9, used for the connection of the first valve seat A9;

[0039] First valve seat A9: Located inside the breather valve body 3, it controls the flow of gas;

[0040] Second spring B12: Fixed between the vent valve body 3 and the second valve seat B13, used to connect the second valve seat B13;

[0041] Second valve seat B13: Located inside the vent valve body 3, used to control gas flow;

[0042] Lower gas inlet 14: Located on the outer surface of the gas guide ring 6, it is the gas inlet;

[0043] Upper gas flow port 15: opened on the outer surface of the gas guide ring 6, the outlet of the gas;

[0044] Annular flow groove 16: formed on the outer surface of the gas guide ring 6, used to guide the flow of gas;

[0045] Gas flow channel 17: It is formed on the outer surface of the gas guide ring 6 and is used to guide the flow of gas.

[0046] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. An oil-separated vent valve, characterized in that, include: Valve cap (1); The oil droplet settling structure includes a waterproof and breathable membrane (2), a breathable valve body (3), a first filter cylinder A (4), a second filter cylinder B (5), a gas guide ring (6), a lower gas flow port (14), an upper gas flow port (15), an annular flow groove (16), and a gas flow groove (17). The waterproof and breathable membrane (2) is located at the bottom of the valve cap (1), and the breathable valve body (3) is located at the bottom of the valve cap (1). The waterproof and breathable membrane (2) is located between the valve cap (1) and the breathable valve body (3), and the waterproof and breathable membrane (2) is in contact with the breathable valve body (3). The first filter cylinder A (4) is fixedly connected to the inside of the breathable valve body (3), and the second filter cylinder B (5) is fixedly connected to the inside of the breathable valve body (3). The filter cartridge B (5) is fixedly connected to the bottom of the first filter cartridge A (4). The gas guide ring (6) is set inside the breather valve body (3). The lower gas flow port (14) is opened on the outer surface of the gas guide ring (6). The upper gas flow port (15) is opened on the outer surface of the gas guide ring (6). The annular flow groove (16) is opened on the outer surface of the gas guide ring (6). The lower gas flow port (14) is connected to the annular flow groove (16). The upper gas flow port (15) is connected to the annular flow groove (16). The lower gas flow port (14) is located at the bottom of the upper gas flow port (15). The gas flow groove (17) is opened at the top of the gas guide ring (6). The gas flow groove (17) is connected to the upper gas flow port (15).

2. The oil-separating and venting valve according to claim 1, characterized in that: The vent valve body (3) is internally fixedly connected to a first spring A (8), and the bottom of the first spring A (8) is fixedly connected to a first valve seat A (9). The bottom of the first valve seat A (9) is provided with a valve diaphragm A (10), and the bottom of the valve diaphragm A (10) is provided with a valve diaphragm B (11).

3. The oil-separating and venting valve according to claim 2, characterized in that: The bottom of the first valve seat A (9) is fixedly connected to the second spring B (12), and the bottom of the second spring B (12) is provided with the second valve seat B (13). The second valve seat B (13) is slidably connected to the inner wall of the vent valve body (3), and the first valve seat A (9) is slidably connected to the inner wall of the vent valve body (3).

4. The oil-separating and venting valve according to claim 1, characterized in that: A sealing gasket (7) is fixedly connected to the surface of the vent valve body (3).

5. The oil-separating and venting valve according to claim 1, characterized in that: The vent valve body (3) has a first receiving groove (18) inside, and the second valve seat B (13) is adapted to the first receiving groove (18), and the second valve seat B (13) is located inside the first receiving groove (18).

6. The oil-separating and venting valve according to claim 1, characterized in that: The vent valve body (3) has a second receiving groove (19) inside, and the valve diaphragm A (10), valve diaphragm B (11) and second valve seat B (13) are all located inside the second receiving groove (19).

7. The oil-separating and venting valve according to claim 1, characterized in that: The vent valve body (3) has a third receiving groove (20) inside, and the first valve seat A (9) is adapted to the third receiving groove (20). The first valve seat A (9) is located inside the third receiving groove (20).

8. The oil-separating and venting valve according to claim 1, characterized in that: The inside of the breathable valve body (3) is provided with filter cartridge mounting groove A (21) and filter cartridge mounting groove B (22). Filter cartridge mounting groove A (21) is adapted to the second filter cartridge B (5), and filter cartridge mounting groove B (22) is adapted to the first filter cartridge A (4).

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