Safety valve and gas-liquid separator

Abstract

This application provides a safety valve and a gas-liquid separator. The safety valve includes a safety valve housing and a safety valve float. The safety valve housing includes multiple inlets, multiple outlets, and a receiving cavity communicating with the multiple inlets and outlets. The safety valve float is assembled onto the safety valve housing. The safety valve float includes a first umbrella valve, a float, and a second umbrella valve. The first umbrella valve, float, and second umbrella valve are disposed within the receiving cavity, with the first umbrella valve located below the float and the second umbrella valve located above the float. When a gas-liquid mixture enters the receiving cavity, the float, under the action of buoyancy, causes the second umbrella valve to float upward, sealing the multiple outlets. When the second umbrella valve seals the multiple outlets, and the pressure inside the receiving cavity increases and remains stable, the first umbrella valve seals the multiple inlets. When the pressure inside the receiving cavity is greater than the pressure outside the receiving cavity, the first umbrella valve and the second umbrella valve lock and continuously seal the inlets and outlets. The self-locking structure of the first umbrella valve and the second umbrella valve can improve the reliability and airtightness of the safety valve.

Description

Technical Field

[0001] This application relates to the field of gas-liquid separator technology, and more particularly to a safety valve and a gas-liquid separator. Background Technology

[0002] The function of a gas-liquid separator is to discharge gas from a pipeline while preventing liquid overflow. In related technologies, float valves are commonly used. The float, under the buoyancy of the liquid, causes a sealing ball to rise and seal the gas outlet, preventing liquid overflow. Currently, the sealing effect of float valves is insufficient to meet sealing requirements and needs improvement. Summary of the Invention

[0003] This application provides a safety valve and gas-liquid separator with improved sealing performance.

[0004] This application provides a safety valve, including:

[0005] The safety valve housing includes multiple inlets, multiple outlets, and a receiving cavity communicating with the multiple inlets and multiple outlets; and

[0006] A safety valve float is assembled on the safety valve housing. The safety valve float includes a first umbrella valve, a float, and a second umbrella valve. The first umbrella valve, float, and second umbrella valve are all located within a receiving cavity, with the first umbrella valve located below the float and the second umbrella valve located above the float. When a gas-liquid mixture enters the receiving cavity through multiple inlets, the float drives the second umbrella valve to rise under the buoyancy of the liquid in the gas-liquid mixture, causing the second umbrella valve to seal multiple outlets. When the second umbrella valve seals multiple outlets, the pressure inside the receiving cavity increases and remains stable, causing the first umbrella valve to descend under gravity to seal multiple inlets. When the pressure inside the receiving cavity is greater than the pressure outside the receiving cavity, the first umbrella valve locks and continuously seals multiple inlets, and the second umbrella valve locks and continuously seals multiple outlets.

[0007] Optionally, the first umbrella valve includes a first umbrella valve cover and a first valve stem connected to the first umbrella valve cover. One end of the first valve stem passes through the bottom of the safety valve housing and extends to the outside of the receiving cavity, while the other end of the first valve stem is connected to the first umbrella valve cover.

[0008] Optionally, the safety valve housing further includes a first mounting hole; the first valve stem includes a first valve stem body and a first limiting part connected to the first valve stem body, the first valve stem body is movably inserted into the first mounting hole, the first limiting part protrudes from the outer side wall of the first valve stem body and abuts against the bottom of the safety valve housing.

[0009] Optionally, the projection surface of the first umbrella valve cover in the vertical direction covers multiple inlets.

[0010] Optionally, the first umbrella valve cover is configured to protrude vertically toward one side of the float.

[0011] Optionally, the first umbrella valve cover and the first valve stem are an integral structure.

[0012] Optionally, the first umbrella valve may be made of rubber.

[0013] Optionally, the safety valve housing includes a first housing and a second housing, which are assembled to form a receiving cavity; the safety valve housing also includes a float cover, which is assembled in the receiving cavity and located on top of the safety valve float; wherein, multiple outlets are provided in the float cover and multiple inlets are provided in the first housing.

[0014] Optionally, the float cover also includes an exhaust chamber connected to multiple outlets.

[0015] Optionally, the safety valve may also include a seal sandwiched between the first housing and the float cover.

[0016] Optionally, the float cover also includes an exhaust chamber; the second housing is provided with an exhaust port that communicates with the exhaust chamber.

[0017] Optionally, the float cover also includes an exhaust chamber communicating with multiple outlets; the second umbrella valve includes a second umbrella valve cover and a second valve stem connected to the second umbrella valve cover, one end of the second valve stem passing through the bottom of the float cover and extending into the exhaust chamber, and the other end of the second valve stem being connected to the second umbrella valve cover.

[0018] Optionally, the float cover also includes a second mounting hole; the second valve stem includes a second valve stem body and a second limiting part connected to the second valve stem body, the second valve stem body is movably inserted into the second mounting hole, the second limiting part protrudes from the outer side wall of the second valve stem body and abuts against the bottom of the float cover.

[0019] Optionally, the projection surface of the second umbrella valve cover in the vertical direction covers multiple outlets.

[0020] Optionally, the second umbrella valve cover is configured to protrude vertically toward one side of the float.

[0021] Optionally, the second umbrella valve cover and the second valve stem are integrated into one structure.

[0022] Optionally, the second umbrella valve may be made of rubber.

[0023] Optionally, the density of the float is less than the density of the liquid in the gas-liquid mixture.

[0024] Optionally, the safety valve housing may also include a float cover; the safety valve may also include a dust cover located on top of the float cover.

[0025] Furthermore, this application provides a gas-liquid separator, including a separator housing, a float valve, and a safety valve as described in any of the above embodiments, wherein the float valve is assembled inside the separator housing and the safety valve is assembled on the top of the separator housing.

[0026] The safety valve provided in this application includes a safety valve housing and a safety valve float. The safety valve housing includes multiple inlets, multiple outlets, and a receiving cavity communicating with the multiple inlets and outlets. The safety valve float is assembled into the safety valve housing. The safety valve float includes a first umbrella valve, a float, and a second umbrella valve. The first umbrella valve, float, and second umbrella valve are all located within the receiving cavity, with the first umbrella valve located below the float and the second umbrella valve located above the float. When a gas-liquid mixture enters the receiving cavity through the multiple inlets, the float drives the second umbrella valve to float upwards under the buoyancy of the liquid in the gas-liquid mixture, causing the second umbrella valve to seal the multiple outlets. When the second umbrella valve seals the multiple outlets, the pressure inside the receiving cavity increases and remains stable, causing the first umbrella valve to descend under gravity to seal the multiple inlets. When the pressure inside the receiving cavity is greater than the pressure outside the receiving cavity, the first umbrella valve locks and continuously seals the multiple inlets, and the second umbrella valve locks and continuously seals the multiple outlets, thus forming a self-locking structure for the first and second umbrella valves. This configuration can improve the reliability and airtightness of the safety valve.

[0027] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0028] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0029] Figure 1 The figure shown is a cross-sectional view of a safety valve according to an exemplary embodiment of this application;

[0030] Figure 2 The diagram shown is an exploded view of a safety valve according to an exemplary embodiment of this application.

[0031] Figure 3 The diagram shown is a structural schematic of a gas-liquid separator according to an exemplary embodiment of this application. Detailed Implementation

[0032] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0033] The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to limit the application. Unless otherwise defined, the technical or scientific terms used in this application should be understood in their ordinary sense by one of ordinary skill in the art to which this application pertains. The terms "first," "second," and similar terms used in this application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms "a" or "one," etc., do not indicate a quantity limitation, but rather indicate the presence of at least one. "A plurality" or "several" indicates two or more. Unless otherwise indicated, the terms "front," "rear," "lower," and / or "upper," etc., are for ease of description only and are not limited to a location or spatial orientation. The terms "comprising" or "including," etc., mean that the elements or objects preceding "comprising" or "including" encompass the elements or objects listed following "comprising" or "including" and their equivalents, and do not exclude other elements or objects. The terms "connected," "linked," etc., are not limited to physical or mechanical connections and can include electrical connections, whether direct or indirect.

[0034] The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The singular forms “a,” “the,” and “the” used in this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0035] This application provides a safety valve and a gas-liquid separator. The safety valve includes a safety valve housing and a safety valve float. The safety valve housing includes multiple inlets, multiple outlets, and a receiving cavity communicating with the multiple inlets and outlets. The safety valve float is assembled into the safety valve housing. The safety valve float includes a first umbrella valve, a float, and a second umbrella valve. The first umbrella valve, float, and second umbrella valve are all located within the receiving cavity, with the first umbrella valve located below the float and the second umbrella valve located above the float. When a gas-liquid mixture enters the receiving cavity through the multiple inlets, the float drives the second umbrella valve to float upwards under the buoyancy of the liquid in the gas-liquid mixture, causing the second umbrella valve to seal the multiple outlets. When the second umbrella valve seals the multiple outlets, the pressure inside the receiving cavity increases and remains stable, causing the first umbrella valve to descend under gravity to seal the multiple inlets. When the pressure inside the receiving cavity is greater than the pressure outside the receiving cavity, the first umbrella valve locks and continuously seals the multiple inlets, and the second umbrella valve locks and continuously seals the multiple outlets, thus forming a self-locking structure for the first and second umbrella valves. This configuration can improve the reliability and airtightness of the safety valve.

[0036] This application provides a safety valve and a gas-liquid separator. The safety valve and gas-liquid separator of this application will be described in detail below with reference to the accompanying drawings. Unless otherwise specified, the features of the following embodiments and implementations can be combined with each other.

[0037] Figure 1 The figure shown is a cross-sectional view of a safety valve 1 according to an exemplary embodiment of this application. Figure 2 The image shown is an exploded view of a safety valve 1 according to an exemplary embodiment of this application. (Reference) Figure 1 and Figure 2 Safety valve 1 includes a safety valve housing 2 and a safety valve float 3. The safety valve float 3 is assembled into the safety valve housing 2. The safety valve housing 2 includes multiple inlets 20, multiple outlets 21, and a receiving cavity 22 communicating with the multiple inlets 20 and multiple outlets 21. The safety valve housing 2 is connected to a gas-liquid separator 100, and the outlets of the gas-liquid separator 100 communicate with the multiple inlets 20 of the safety valve housing 2. The safety valve float 3 includes a first umbrella valve 30, a float 31, and a second umbrella valve 32. The first umbrella valve 30, the float 31, and the second umbrella valve 32 are all located within the receiving cavity 22, with the first umbrella valve 30 located below the float 31 and the second umbrella valve 32 located above the float 31. When a gas-liquid mixture enters the receiving cavity 22 through the multiple inlets 20, the float 31 causes the second umbrella valve 32 to float upward under the buoyancy of the liquid in the gas-liquid mixture, thereby sealing the multiple outlets 21. When the second umbrella valve 32 seals multiple outlets 21, the pressure inside the receiving cavity 22 increases and remains stable, causing the first umbrella valve 30 to descend under gravity to seal multiple inlets 20. When the pressure inside the receiving cavity 22 is greater than the pressure outside the receiving cavity 22, the first umbrella valve 30 locks and continuously seals multiple inlets 20, and the second umbrella valve 32 locks and continuously seals multiple outlets 21, forming a self-locking structure of the first umbrella valve 30 and the second umbrella valve 32, thereby improving the reliability and airtightness of the safety valve 1.

[0038] The first umbrella valve 30 and the second umbrella valve 32 function as one-way valves. The first umbrella valve 30 provides a reverse seal. The inlet 20 of the safety valve 1 is connected to the outlet of the gas-liquid separator 100. When the pressure in the gas-liquid separator 100 is lower than atmospheric pressure, the first umbrella valve 30 can seal multiple inlets 20 to prevent air from entering the receiving cavity 22. When multiple outlets 21 are closed, the pressure in the receiving cavity 22 increases. After the pressure stabilizes, the first umbrella valve 30 descends under gravity to seal multiple inlets 20. When the pressure between the outlet of the gas-liquid separator 100 and the inlet 20 of the safety valve 1 decreases, and the pressure in the receiving cavity 22 is higher, the inlet 20 and outlet 21 are sealed by the first umbrella valve 30 and the second umbrella valve 32 respectively due to the pressure difference, forming a self-locking structure of the first umbrella valve 30 and the second umbrella valve 32, thereby improving the reliability and airtightness of the safety valve 1.

[0039] In some embodiments, the density of the float 31 is less than the density of the liquid in the gas-liquid mixture. With this configuration, when the liquid in the gas-liquid mixture enters the receiving cavity 22, since the density of the float 31 is less than that of the liquid, the float 31 can move upward under the action of buoyancy, thereby causing the second umbrella valve 32 to deform and cover the outlet 21, thus preventing the liquid from flowing out of the safety valve 1 and improving the reliability and airtightness of the safety valve 1.

[0040] exist Figure 1 and Figure 2 In the illustrated embodiment, the first umbrella valve 30 includes a first umbrella valve cover 33 and a first valve stem 34 connected to the first umbrella valve cover 33. One end of the first valve stem 34 passes through the bottom of the safety valve housing 2 and extends to the outside of the receiving cavity 22, while the other end of the first valve stem 34 is connected to the first umbrella valve cover 33. The first umbrella valve 30 is located above the plurality of inlets 20. When no gas-liquid mixture enters the receiving cavity 22, the edge of the first umbrella valve cover 33 abuts against the bottom of the safety valve housing 2, leaving a gap between the middle of the first umbrella valve cover 33 and the safety valve housing 2. When the gas-liquid mixture enters the receiving cavity 22 through the plurality of inlets 20, the edge of the first umbrella valve cover 33 opens upward under external force to form a gap, allowing the gas-liquid mixture to flow out through the gap between the edge of the first umbrella valve cover 33 and the bottom of the safety valve housing 2, thus functioning as a one-way valve. This configuration is simple in structure and low in cost.

[0041] exist Figure 1 In the illustrated embodiment, the safety valve housing 2 further includes a first mounting hole 4. The first mounting hole 4 is located at the center of the safety valve housing 2. The first valve stem 34 includes a first valve stem body 340 and a first limiting portion 341 connected to the first valve stem body 340. The first valve stem body 340 passes through the first mounting hole 4. The first limiting portion 341 protrudes from the outer side wall of the first valve stem body 340 and abuts against the bottom of the safety valve housing 2. The vertical projection of the first limiting portion 341 is larger than the vertical projection of the first mounting hole 4 and the first valve stem body 340. This arrangement increases the structural stability of the first umbrella valve 30.

[0042] exist Figure 1 In the illustrated embodiment, the vertical projection of the first umbrella valve cover 33 covers multiple inlets 20. The multiple inlets 20 are located below the umbrella surface of the first umbrella valve cover 33, so that all inlets 20 can be tightly covered when the first umbrella valve cover 33 deforms, thereby ensuring the airtightness of the safety valve 1. The first umbrella valve cover 33 protrudes vertically towards the float 31. The upper surface of the first umbrella valve cover 33 abuts against the lower surface of the float 31, and a gap is left between the lower surface of the first umbrella valve cover 33 and the bottom of the safety valve housing 2 to facilitate the flow of the gas-liquid mixture into the receiving cavity 22.

[0043] exist Figure 1 In the illustrated embodiment, the safety valve housing 2 includes a first housing 23 and a second housing 24, which are assembled to form a receiving cavity 22. The first housing 23 and the second housing 24 are rotatably detachable or installable. The safety valve housing 2 also includes a float cover 25, assembled within the receiving cavity 22 and located on top of the safety valve float 3. Multiple outlets 21 are provided on the float cover 25, and multiple inlets 20 are provided on the first housing 23. Gas in the gas-liquid mixture enters the receiving cavity 22 through the multiple inlets 20 and exits through the multiple outlets 21 on the float cover 25 located at the top of the receiving cavity 22. The float cover 25 also includes an exhaust chamber 26, communicating with the multiple outlets 21. Gas in the gas-liquid mixture exits from the multiple outlets 21 and enters the exhaust chamber 26. The second housing 24 has an exhaust port 240, communicating with the exhaust chamber 26. Gas in the exhaust chamber 26 exits the safety valve 1 through the exhaust port 240 located on the upper part of the second housing 24, completing gas-liquid separation. The safety valve 1 also includes a sealing element 5, which is sandwiched between the first housing 23 and the float cover 25. The inner wall of the first housing has a recess, and the edge of the float cover 25 extends outward to form a protrusion. The sealing element 5 is sandwiched between the recess and the protrusion to increase the airtightness of the receiving cavity 22.

[0044] exist Figure 1 In the illustrated embodiment, the float cover 25 further includes an exhaust chamber 26 communicating with multiple outlets 21. The second umbrella valve 32 includes a second umbrella valve cover 35 and a second valve stem 36 connected to the second umbrella valve cover 35. One end of the second valve stem 36 passes through the bottom of the float cover 25 and extends into the exhaust chamber 26, while the other end of the second valve stem 36 is connected to the second umbrella valve cover 35. The exhaust chamber 26 is provided within the float cover 25 to facilitate the upward vertical movement of the second limiting portion 361 driven by the deformation of the second umbrella valve cover 35. The second umbrella valve 32 is located at the lower part of the multiple outlets 21. When no gas-liquid mixture enters the receiving cavity 22, a gap is left between the second umbrella valve cover 35 and the float cover 25, allowing gas in the gas-liquid mixture to enter the multiple outlets 21 through the gap and exit the receiving cavity 22. As the liquid level in the containment chamber 22 increases, the float 31 rises under buoyancy. The upper surface of the float 31 comes into contact with the lower surface of the second umbrella valve cover 35, causing the second umbrella valve cover 35 and the second valve stem 36 connected to it to move upwards. During this process, the contact area between the upper surface of the second umbrella valve cover 35 and the lower surface of the float cover 25 increases. When the liquid level in the containment chamber 22 reaches a certain height, the second umbrella valve cover 35 tightly covers all the outlets 21 on the float cover 25. This design ensures that liquid will not flow out of the safety valve 1 through the outlets 21, thus ensuring the reliability and airtightness of the safety valve 1.

[0045] exist Figure 1In the illustrated embodiment, the float cover 25 further includes a second mounting hole 6. The second mounting hole 6 is located in the middle of the float cover. The second valve stem 36 includes a second valve stem body 360 and a second limiting portion 361 connected to the second valve stem body 360. The second valve stem body 360 is movably inserted into the second mounting hole 6, and the second limiting portion 361 protrudes from the outer side wall of the second valve stem body 360 and abuts against the bottom of the float cover 25. The projection surface of the second limiting portion 361 in the vertical direction is larger than the projection surfaces of the second mounting hole 6 and the second valve stem body 360 in the vertical direction. This configuration increases the structural stability of the second umbrella valve 32.

[0046] exist Figure 1 In the illustrated embodiment, the projection surface of the second umbrella valve cover 35 in the vertical direction covers multiple outlets 21. All outlets 21 are located below the umbrella surface of the second umbrella valve cover 35, so that all outlets 21 can be tightly covered when the second umbrella valve cover 35 deforms. The second umbrella valve cover 35 protrudes vertically towards the float. When the float 31 rises to a certain height, the edge of the second umbrella valve cover 35 first abuts against the bottom of the float cover 25, thereby preventing liquid from flowing out of the receiving cavity 22 and ensuring the reliability and airtightness of the safety valve 1.

[0047] In some embodiments, the first umbrella valve 30 is made of rubber. Rubber can undergo plastic deformation and has characteristics such as high temperature resistance and aging resistance, which can improve the service life of the safety valve 1. In other embodiments, the first umbrella valve 30 and the second umbrella valve 32 can also be made of soft plastic, which can also undergo plastic deformation, and this application does not limit this.

[0048] In some embodiments, the second umbrella valve 32 is made of rubber. Rubber can undergo plastic deformation and has characteristics such as high temperature resistance and aging resistance, which can improve the service life of the safety valve 1. In other embodiments, the second umbrella valve 32 can also be made of soft plastic, which can also undergo plastic deformation, and this application does not limit this.

[0049] exist Figure 1 and Figure 2In the illustrated embodiment, the first umbrella valve cover 33 and the first valve stem 34 are an integral structure. Since the first umbrella valve 30 can deform, during installation, the first limiting part 341 of the first umbrella valve 30 is passed through the first mounting hole 4 from top to bottom. This arrangement is simple and easy to operate. In other embodiments, since the diameter of the first limiting part 341 is much larger than the diameter of the first mounting hole 4, it is difficult to install the first umbrella valve 30 through the first mounting hole 4. Therefore, the first umbrella valve cover 33 and the first valve stem 34 can be configured as separate structures. During installation, the first valve stem body 340 is passed through the first mounting hole 4 from bottom to top, so that the first limiting part 341 abuts against the bottom of the safety valve housing 2, and the first umbrella valve cover 33 and the first valve stem 34 are bonded together using adhesive. This arrangement reduces the shaking of the first umbrella valve 30 and increases the structural stability of the first umbrella valve 30.

[0050] exist Figure 1 and Figure 2 In the illustrated embodiment, the second umbrella valve cover 35 and the second valve stem 36 are integrally formed. Since the second umbrella valve 32 can deform, during installation, the second limiting part 361 of the second umbrella valve passes through the second mounting hole 6 from bottom to top. This arrangement is simple and easy to operate. In other embodiments, the diameter of the second limiting part 361 is much larger than the diameter of the second mounting hole 6, making it difficult to install the second umbrella valve 32 through the second mounting hole 6. Therefore, the second umbrella valve cover 35 and the second valve stem 36 can be configured as separate structures. During installation, the second valve stem body 360 passes through the second mounting hole 6 from top to bottom, the second limiting part 361 abuts against the upper part of the float cover 25, and adhesive is used to bond the second umbrella valve cover 35 to the second valve stem 36. This arrangement reduces the shaking of the second umbrella valve 32 and increases its structural stability.

[0051] exist Figure 2 In the illustrated embodiment, the safety valve housing 2 further includes a float cover 25. The safety valve 1 also includes a dustproof element 7 disposed on top of the float cover 25. In this embodiment, the dustproof element 7 may be felt. The dustproof element 7 is disposed on the upper part of the plurality of outlets 21 and can adsorb dust in the gas. In some other embodiments, the dustproof element 7 may also be other fibrous materials, which are not limited in this application.

[0052] Figure 3 The diagram shown is a structural schematic of a gas-liquid separator according to an exemplary embodiment of this application. (Reference) Figure 3This application also provides a gas-liquid separator 100, including a separator housing 101, a float valve 102 assembled inside the separator housing 101, and a safety valve 1 as described in any of the above embodiments, the safety valve 1 being assembled on the top of the separator housing 101. The separator housing 101 is connected to a first housing 23, and the separator housing 101 includes a separator outlet. The gas-liquid mixture enters the receiving cavity 22 through the separator outlet and the inlet 20 at the bottom of the first housing 23. The float valve serves as the first valve of the gas-liquid separator 100 to prevent liquid in the gas-liquid mixture from flowing out of the gas-liquid separator 100. When the flow rate of the gas-liquid mixture is large, the safety valve 1 serves as the second valve, ensuring that liquid will not flow out of the gas-liquid separator 100 due to its reliability and airtightness.

[0053] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this application are indicated by the following claims.

[0054] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A safety valve, characterized in that, include: The safety valve housing includes multiple inlets, multiple outlets, and a receiving cavity communicating with the multiple inlets and multiple outlets; and A safety valve float is assembled on the safety valve housing. The safety valve float includes a first umbrella valve, a float, and a second umbrella valve. The first umbrella valve, the float, and the second umbrella valve are all located within the receiving cavity, with the first umbrella valve located below the float and the second umbrella valve located above the float. When a gas-liquid mixture enters the receiving cavity through the multiple inlets, the float causes the second umbrella valve to rise under the buoyancy of the liquid in the gas-liquid mixture, thereby sealing the multiple outlets. When the second umbrella valve seals the multiple outlets, the pressure inside the receiving cavity increases and remains stable, causing the first umbrella valve to descend under gravity to seal the multiple inlets. When the pressure inside the receiving cavity is greater than the pressure outside the receiving cavity, the first umbrella valve locks and continuously seals the multiple inlets, and the second umbrella valve locks and continuously seals the multiple outlets.

2. The safety valve according to claim 1, characterized in that, The first umbrella valve includes a first umbrella valve cover and a first valve stem connected to the first umbrella valve cover. One end of the first valve stem passes through the bottom of the safety valve housing and extends to the outside of the receiving cavity. The other end of the first valve stem is connected to the first umbrella valve cover.

3. The safety valve according to claim 2, characterized in that, The safety valve housing further includes a first mounting hole; the first valve stem includes a first valve stem body and a first limiting portion connected to the first valve stem body, the first valve stem body being movably inserted into the first mounting hole, and the first limiting portion protruding from the outer side wall of the first valve stem body and abutting against the bottom of the safety valve housing; and / or The projection of the first umbrella valve cover in the vertical direction covers the plurality of inlets; and / or The first umbrella valve cover protrudes vertically toward one side of the float; and / or The first umbrella valve cover and the first valve stem are an integral structure; and / or The first umbrella valve is made of rubber.

4. The safety valve according to claim 1, characterized in that, The safety valve housing includes a first housing and a second housing, which are assembled to form the receiving cavity; the safety valve housing also includes a float cover, which is assembled in the receiving cavity and located on top of the safety valve float; wherein, the plurality of outlets are provided in the float cover and the plurality of inlets are provided in the first housing; The float cover also includes an exhaust chamber connected to the plurality of outlets; and / or The safety valve further includes a seal sandwiched between the first housing and the float cover; and / or The float cover also includes an exhaust chamber; the second housing is provided with an exhaust port, which communicates with the exhaust chamber.

5. The safety valve according to claim 4, characterized in that, The float cover also includes an exhaust chamber communicating with the plurality of outlets; the second umbrella valve includes a second umbrella valve cover and a second valve stem connected to the second umbrella valve cover, one end of the second valve stem passing through the bottom of the float cover and extending into the exhaust chamber, and the other end of the second valve stem being connected to the second umbrella valve cover.

6. The safety valve according to claim 5, characterized in that, The float cover also includes a second mounting hole; the second valve stem includes a second valve stem body and a second limiting part connected to the second valve stem body, the second valve stem body is movably inserted into the second mounting hole, the second limiting part protrudes from the outer side wall of the second valve stem body and abuts against the bottom of the float cover.

7. The safety valve according to claim 5, characterized in that, The projection of the second umbrella valve cover in the vertical direction covers the plurality of outlets; and / or The second umbrella valve cover is provided to protrude vertically toward one side of the float; and / or The second umbrella valve cover and the second valve stem are an integral structure; and / or The second umbrella valve is made of rubber.

8. The safety valve according to claim 1, characterized in that, The density of the float is less than the density of the liquid in the gas-liquid mixture.

9. The safety valve according to claim 1, characterized in that, The safety valve housing also includes a float cover; the safety valve also includes a dustproof component located on top of the float cover.

10. A gas-liquid separator, characterized in that, include: Separator housing; The float valve is assembled inside the separator housing; and The safety valve as claimed in any one of claims 1 to 9, wherein the safety valve is assembled on top of the separator housing.

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