CN220828579U - Safety valve - Google Patents

Abstract

The application provides a safety valve, which comprises a safety valve shell and a safety valve floater, wherein the safety valve shell comprises an inlet, an outlet and a containing cavity communicated with the inlet and the outlet. The safety valve float includes a float, a ball valve, an umbrella valve, and a linkage assembly. The float and the connecting rod assembly are arranged in the accommodating cavity, one end of the connecting rod assembly is movably connected with the safety valve housing, the other end of the connecting rod assembly is movably connected with the float, the umbrella valve is arranged at the top of the connecting rod assembly, part of the umbrella valve is movably arranged at the outlet in a penetrating way, and the ball valve is arranged at the outlet and is arranged above the umbrella valve. When the gas-liquid mixture enters the accommodating cavity through the inlet, the floater floats upwards under the buoyancy action of the liquid of the gas-liquid mixture, and drives the connecting rod assembly to float upwards, so that the umbrella valve is sealed at the bottom of the outlet. When the pressure in the accommodating cavity is lower than the atmospheric pressure, the ball valve seals the top of the outlet, so that external air can be prevented from entering the safety valve. Under vibration working condition, the umbrella valve arranged on the connecting rod assembly can stably seal the outlet, so that the sealing effect of the safety valve is improved.

Description

Safety valve

Technical Field

The application relates to the technical field of gas-liquid separators, in particular to a safety valve.

Background

The gas-liquid separator is used for discharging the gas in the pipeline and preventing the liquid from overflowing. In the related art, a float valve is generally used, and a float drives a sealing ball to rise under the buoyancy of liquid to seal an air outlet, so as to prevent the liquid from overflowing. At present, under the vibration working condition, the sealing effect of the float valve can not meet the sealing requirement and needs to be improved.

Disclosure of utility model

The application provides a safety valve with stable and reliable sealing.

The present application provides a safety valve, comprising:

The safety valve housing comprises an inlet, an outlet and a containing cavity communicated with the inlet and the outlet;

The safety valve floater comprises a floater, a ball valve, an umbrella valve and a connecting rod assembly; the float and the connecting rod assembly are arranged in the accommodating cavity, one end of the connecting rod assembly is movably connected with the safety valve housing, the other end of the connecting rod assembly is movably connected with the float, the umbrella valve is arranged at the top of the connecting rod assembly, part of the umbrella valve is movably penetrated through the outlet, and the ball valve is arranged at the outlet and is positioned above the umbrella valve; when the gas-liquid mixture enters the accommodating cavity through the inlet, the floater floats upwards under the buoyancy action of the liquid of the gas-liquid mixture, and drives the connecting rod assembly to float upwards, so that the umbrella valve is sealed at the bottom of the outlet; when the pressure in the accommodating cavity is lower than the atmospheric pressure, the ball valve seals the top of the outlet.

Optionally, the connecting rod assembly comprises a connecting part and at least one force arm connected with the connecting part, the connecting part is movably connected with the safety valve housing, and the floater is movably connected with one end of the force arm far away from the connecting part.

Optionally, the connecting rod assembly further comprises an elastic member;

One end of the elastic piece is fixed on the safety valve shell, and the other end of the elastic piece is fixed on the connecting part.

The elastic piece extends along the length direction of the arm of force, and the elastic piece is located below the connecting portion.

Optionally, the safety valve housing comprises a bracket, the bracket comprises a first limiting part, the connecting part is provided with a second limiting part matched with the first limiting part, and the connecting part is matched with the second limiting part through the first limiting part and is movably connected with the bracket; one of the first limiting part and the second limiting part is a shaft body, and the other is a groove.

Optionally, the force arm comprises a third limiting part, the floater is provided with a fourth limiting part matched with the third limiting part, and the force arm is movably connected with the floater through the third limiting part matched with the fourth limiting part; one of the third limiting part and the fourth limiting part is a shaft body, and the other is a groove.

Optionally, the umbrella valve comprises an umbrella valve cover and a valve rod connected with the umbrella valve cover, the top of the valve rod is movably penetrated through the outlet, and the bottom of the valve rod is fixed at the top of the connecting rod assembly;

The valve stem has a cross-section smaller than the cross-section of the outlet.

Optionally, the umbrella valve cover has a cover area greater than the cross section of the outlet.

Optionally, the safety valve housing further comprises a limiting hole, the limiting hole is communicated with the outlet and is positioned at the top of the outlet, and the ball valve is positioned in the limiting hole;

optionally, the cross section of the limiting aperture is larger than the cross section of the outlet.

The junction of spacing hole and export smooth transition just with ball valve looks adaptation.

Optionally, the safety valve housing comprises a first housing and a second housing covered on the top of the first housing, the first housing and the second housing are assembled to form a containing cavity, the inlet is arranged on the first housing, and the outlet is arranged on the second housing; the first shell is provided with a limiting piece extending upwards, the middle part of the floater is provided with a positioning groove, and the limiting piece movably penetrates through the positioning groove when the floater floats up and down in the accommodating cavity.

Optionally, the second shell further comprises a limiting hole penetrating up and down; the top surface of the second shell is recessed downwards to form a first liquid storage groove, and the first liquid storage groove is positioned on the periphery side of the limiting hole.

Optionally, the top surface of the second housing is recessed downward to form a second liquid storage tank, the second liquid storage tank is located at the peripheral side of the first liquid storage tank, and the depth of the second liquid storage tank is smaller than that of the first liquid storage tank.

Optionally, the safety valve further comprises a dust-proof piece, and the dust-proof piece covers the limiting hole and the top of the first liquid storage tank.

Optionally, the safety valve housing further comprises a top cover; the top cover comprises a covering part and a clamping part connected with the covering part, the covering part is covered at the top of the second shell, and the clamping part is positioned at the edge of the covering part and extends downwards and is clamped with the second shell.

Optionally, the top cover is arranged at the top of the second shell and forms an exhaust cavity, and the clamping part is provided with at least one exhaust port which is communicated with the exhaust cavity.

Optionally, the umbrella valve comprises an umbrella valve cover; the bottom surface of the second shell is recessed upwards to form a containing groove, the containing groove is positioned at the bottom of the outlet, and the umbrella valve cover is positioned in the containing groove.

Optionally, the density of the float is less than the density of the liquid of the gas-liquid mixture.

Optionally, the safety valve housing includes a second housing, and at least one protruding portion is provided at the top of the float, and when the float floats to the top of the accommodating cavity, the protruding portion abuts against the bottom surface of the second housing.

The application provides a safety valve, which comprises a safety valve shell and a safety valve floater, wherein the safety valve shell comprises an inlet, an outlet and a containing cavity communicated with the inlet and the outlet. The safety valve float comprises a float, a ball valve, an umbrella valve and a connecting rod assembly. The float and the connecting rod assembly are arranged in the accommodating cavity, one end of the connecting rod assembly is movably connected with the safety valve housing, the other end of the connecting rod assembly is movably connected with the float, the umbrella valve is arranged at the top of the connecting rod assembly, part of the umbrella valve is movably arranged at the outlet in a penetrating way, and the ball valve is arranged at the outlet and is arranged above the umbrella valve. When the gas-liquid mixture enters the accommodating cavity through the inlet, the floater floats upwards under the buoyancy action of the liquid of the gas-liquid mixture, and drives the connecting rod assembly to float upwards, so that the umbrella valve is sealed at the bottom of the outlet. When the pressure in the accommodating cavity is lower than the atmospheric pressure, the ball valve seals the top of the outlet, so that external air can be prevented from entering the safety valve. Under vibration working condition, the umbrella valve arranged on the connecting rod assembly can stably seal the outlet, so that the sealing effect of the safety valve is improved.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application as claimed.

Drawings

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

FIG. 1 is an exploded view of a gas-liquid separator according to an exemplary embodiment of the present application;

FIG. 2 is a schematic partial cross-sectional view of one state of the gas-liquid separator of the exemplary embodiment shown in FIG. 1;

FIG. 3 is a schematic partial cross-sectional view of another state of the gas-liquid separator of the exemplary embodiment shown in FIG. 1;

FIG. 4 is a schematic diagram of a top view of a gas-liquid separator according to an exemplary embodiment of the present application;

FIG. 5 is a schematic view of a connecting rod assembly according to an exemplary embodiment of the present application;

FIG. 6 is a schematic diagram of an umbrella valve according to an exemplary embodiment of the present application;

fig. 7 is a schematic view showing the structure of a top cover according to an exemplary embodiment of the present application.

The reference numerals are as follows:

A safety valve 1; a safety valve housing 2; a relief valve float 3; a float 4; a ball valve 5; an umbrella valve 6; a link assembly 7; a dust-proof member 8; an inlet 20; an outlet 21; a housing chamber 22; a first housing 23; a second housing 24; a stopper 25; a bracket 26; a receiving groove 27; a limiting hole 28; a first reservoir 29; a second reservoir 30; a top cover 31; a discharge chamber 32; an exhaust port 33; a positioning groove 40; a fourth limit part 41; a projection 42; umbrella valve cover 60; a valve stem 61; a connection portion 70; arm 71; an elastic member 72; a first limiting portion 260; a first bracket 261; a second bracket 262; a cover 310; a clamping part 311; a second stopper 700; and a third limit portion 710.

Detailed Description

Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the application. Rather, they are merely examples of apparatus and methods consistent with aspects of the application as detailed in the accompanying claims.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs. The terms "first," "second," and the like in the description and in the claims, are not used for any order, quantity, or importance, but are used for distinguishing between different elements. Likewise, the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. "plurality" or "plurality" means two or more. Unless otherwise indicated, the terms "front," "rear," "lower," and/or "upper" and the like are merely for convenience of description and are not limited to one location or one spatial orientation. The word "comprising" or "comprises", and the like, means that elements or items appearing before "comprising" or "comprising" are encompassed by the element or item recited after "comprising" or "comprising" and equivalents thereof, and that other elements or items are not excluded. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

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

The application provides a safety valve, which comprises a safety valve shell and a safety valve floater, wherein the safety valve shell comprises an inlet, an outlet and a containing cavity communicated with the inlet and the outlet. The safety valve float comprises a float, a ball valve, an umbrella valve and a connecting rod assembly. The float and the connecting rod assembly are arranged in the accommodating cavity, one end of the connecting rod assembly is movably connected with the safety valve housing, the other end of the connecting rod assembly is movably connected with the float, the umbrella valve is arranged at the top of the connecting rod assembly, part of the umbrella valve is movably arranged at the outlet in a penetrating way, and the ball valve is arranged at the outlet and is arranged above the umbrella valve. When the gas-liquid mixture enters the accommodating cavity through the inlet, the floater floats upwards under the buoyancy action of the liquid of the gas-liquid mixture, and drives the connecting rod assembly to float upwards, so that the umbrella valve is sealed at the bottom of the outlet. When the pressure in the accommodating cavity is lower than the atmospheric pressure, the ball valve seals the top of the outlet, so that external air can be prevented from entering the safety valve. Under vibration working condition, the umbrella valve arranged on the connecting rod assembly can stably seal the outlet, so that the sealing effect of the safety valve is improved.

The application provides a safety valve. The relief valve of the present application will be described in detail with reference to the accompanying drawings. The features of the examples and embodiments described below may be combined with each other without conflict.

Fig. 1 is an exploded view of a gas-liquid separator 100 according to an exemplary embodiment of the present application, fig. 2 is a partially cross-sectional view showing one state of the gas-liquid separator 100 according to an exemplary embodiment of the present application shown in fig. 1, fig. 3 is a partially cross-sectional view showing another state of the gas-liquid separator 100 according to an exemplary embodiment of the present application shown in fig. 1, fig. 4 is a schematic view showing a top view of the gas-liquid separator 100 according to an exemplary embodiment of the present application, fig. 5 is a schematic view showing a structure of a connecting rod assembly according to an exemplary embodiment of the present application, fig. 6 is a schematic view showing a structure of an umbrella valve according to an exemplary embodiment of the present application, and fig. 7 is a schematic view showing a top cover according to an exemplary embodiment of the present application.

The safety valve 1 is provided at an upper portion of the gas-liquid separator 100 to discharge the gas in the gas-liquid separator 100, and may prevent the liquid in the gas-liquid separator 100 from leaking outside, and if the liquid in the gas-liquid separator 100 seeps out, the liquid can be sealed in the housing chamber 22 of the safety valve 1 by the safety valve float 3.

Referring to fig. 1 to 7, the relief valve 1 includes a relief valve housing 2 and a relief valve float 3, the relief valve float 3 being provided in the relief valve housing 2. Wherein the safety valve housing 2 comprises an inlet 20, an outlet 21 and a receiving cavity 22 communicating with the inlet 20 and the outlet 21. In this embodiment, the inlet 20 is located at the bottom of the accommodating cavity 22, and the outlet 21 is located at the top of the accommodating cavity 22. The relief valve float 3 comprises a float 4, a ball valve 5, an umbrella valve 6 and a linkage assembly 7. The float 4 and the link assembly 7 are disposed within the receiving chamber 22. The floats 4 and the connecting rod assemblies 7 are distributed in the accommodating cavity 22 in a staggered mode. One end of the connecting rod assembly 7 is movably connected with the safety valve housing 2, and the other end of the connecting rod assembly 7 is movably connected with the float 4, as shown in fig. 6. The umbrella valve 6 is arranged at the top of the connecting rod assembly 7, and part of the umbrella valve is movably arranged at the outlet 21. The umbrella valve 6 is positioned at the bottom of the outlet 21 partially and partially penetrated in the outlet 21. The ball valve 5 is provided at the outlet 21 and above the umbrella valve 6. The ball valve 5 is mainly used for sealing the outlet 21.

In the embodiment shown in fig. 2 and 3, when the gas-liquid mixture enters the accommodating cavity 22 through the inlet 20, the float 4 floats upwards under the buoyancy of the liquid of the gas-liquid mixture, so as to drive the connecting rod assembly 7 to float upwards, as shown in fig. 2. At this time, the connecting rod assembly 7 drives the umbrella valve 6 to float upwards. The connecting rod assembly 7 drives the umbrella valve 6 to float upwards, so that the umbrella valve 6 is sealed at the bottom of the outlet 21, as shown in fig. 3. In the above process, the gas in the housing chamber 22 is discharged through the gap between the umbrella valve 6 and the outlet 21 to lift the ball valve 5. When the float 4 floats up to the top of the accommodating chamber 22 and the pressure in the accommodating chamber 22 is greater than the atmospheric pressure, the umbrella valve 6 is abutted to the bottom of the outlet 21 through the connecting rod assembly 7, sealing the bottom of the outlet 21, preventing the liquid from being discharged. When the pressure in the accommodating chamber 22 is lower than the atmospheric pressure, the ball valve 5 positioned at the top of the outlet 21 seals the top of the outlet 21 by its own weight, so that the external air is prevented from entering the safety valve 1. So set up, float 4 come up under the buoyancy effect, drive link assembly 7 come up, set up the sealed export 21 of umbrella valve 6 on link assembly 7, umbrella valve 6 and export 21 week side's sealed face contact force promotes, under vibration operating mode or accept the lower circumstances of intracavity pressure in chamber 22, umbrella valve 6 can stabilize sealed export 21 to improve the sealed effect of relief valve 1.

In the embodiment shown in fig. 1 to 7, the safety valve housing 2 comprises a first housing 23 and a second housing 24 covering the top of the first housing 23. The first housing 23 and the second housing 24 are assembled to form the housing chamber 22. The inlet 20 is provided in the first housing 23 and the outlet 21 is provided in the second housing 24. The first casing 23 is provided with a limiting piece 25 extending upwards, the middle part of the float 4 is provided with a positioning groove 40, and the limiting piece 25 movably penetrates through the positioning groove 40 when the float 4 floats up and down in the accommodating cavity 22. The limiting piece 25 is used for limiting the up-and-down floating direction of the floater 4, and preventing the floater 4 from driving the connecting rod assembly 7 to shake, so that the sealing effect of the umbrella valve 6 is affected.

In the embodiment shown in fig. 4 and 5, the linkage assembly 7 includes a connecting portion 70 and at least one moment arm 71 connected to the connecting portion 70. In some embodiments, the linkage assembly 7 includes one or more moment arms 71. In this embodiment, the linkage assembly 7 includes two moment arms 71. The connecting part 70 is movably connected with the safety valve housing 2, and the float 4 is movably connected with one end of the arm 71 away from the connecting part 70. In the embodiment shown in fig. 1, 4 and 5, the ends of the two arms 71 remote from the connection 70 are each movably connected to the side wall of the float 4. The connecting rod assembly 7 is used as a lever, the connecting part 70 and the safety valve housing 2 are used as fulcrums, the umbrella valve 6 is arranged at the top of the connecting part 70, the connecting part of the umbrella valve 6 and the connecting part 70 is used as a resistance point, the connecting part of the force arm 71 and the floater 4 is used as a power point, the floater 4 floats under the buoyancy action of the liquid of the gas-liquid mixture to provide power for the power point, so that the connecting rod assembly 7 is driven to rotate upwards around the fulcrums, and when the floater 4 floats to a certain height, the umbrella valve 6 completely seals the outlet 21. By arranging the connecting rod assembly 7 as a lever structure to connect the floater 4 and the umbrella valve 6, the contact force between the umbrella valve 6 and the sealing surface on the periphery side of the outlet 21 can be improved, so that the umbrella valve 6 can stably seal the outlet 21 under the condition of low pressure in the vibration working condition or the accommodating cavity 22, and the sealing effect of the safety valve 1 is improved.

In the embodiment shown in fig. 5, the linkage assembly 7 further comprises an elastic member 72. One end of the elastic member 72 is fixed to the safety valve housing 2, and the other end of the elastic member 72 is fixed to the connection portion 70. The elastic member 72 extends along the length direction of the arm 71, and the elastic member 72 is located below the connecting portion 70. When the float 4 floats up to a certain height by the buoyancy of the liquid in the gas-liquid mixture, the elastic member 72 is deformed and generates a pulling force on the connection portion 70. By the arrangement, the linkage assembly 7 can be prevented from moving, so that the stability of the umbrella valve 6 connected with the linkage assembly 7 is maintained, and the sealing effect of the safety valve 1 is further improved.

In the embodiment shown in fig. 4 and 5, the safety valve housing 2 comprises a bracket 26, which bracket 26 is provided protruding from the second housing 24. In this embodiment, the bracket 26 includes a first limiting portion 260, the connecting portion 70 is provided with a second limiting portion 700 that is matched with the first limiting portion 260, and the connecting portion 70 is movably connected with the bracket 26 through the matching of the first limiting portion 260 and the second limiting portion 700. One of the first limiting portion 260 and the second limiting portion 700 is a shaft body, and the other is a groove. In some embodiments, the first limiting portion 260 is a shaft, and the second limiting portion 700 is a groove. In other embodiments, the first limiting portion 260 is a groove, and the second limiting portion 700 is a shaft. So configured, the connection 70 can be rotated about the bracket 26. In the embodiment shown in fig. 1, 4 and 5, two protruding shafts are provided on the side walls of the connection portion 70, and grooves corresponding to the positions of the shafts are provided on the bracket 26. The support 26 is the components of a whole that can function independently setting, and support 26 includes first support 261 and second support 262, and first support 261 locates the top of first casing 23, and second support 262 joint is on first support 261, so sets up, can design the second support 262 of different height in order to adjust link assembly 7's height. In other embodiments, the bracket 26 may be integrally formed, as the application is not limited in this regard.

In the embodiment shown in fig. 4 and 5, the arm 71 includes a third limiting portion 710, the float 4 is provided with a fourth limiting portion 41 that is matched with the third limiting portion 710, and the arm 71 is movably connected with the float 4 through the third limiting portion 710 and the fourth limiting portion 41. One of the third limiting portion 710 and the fourth limiting portion 41 is a shaft body, and the other is a groove. In some embodiments, the third limiting portion 710 is a shaft, and the fourth limiting portion 41 is a groove. In other embodiments, the third limiting portion 710 is a groove, and the fourth limiting portion 41 is a shaft body. So arranged, the arm 71 can be rotated about the float 4. In the embodiment shown in fig. 1, 4 and 5, the side wall of the float 4 is provided with two protruding shafts, and the end of the two arms 71 remote from the connection 70 is provided with a recess. So arranged, the linkage assembly 7 and the float 4 are conveniently installed and removed.

In the embodiment shown in fig. 6, umbrella valve 6 comprises umbrella valve cover 60 and valve rod 61 connected to umbrella valve cover 60, the top of valve rod 61 is movably threaded through outlet 21, and the bottom of valve rod 61 is fixed to the top of linkage assembly 7. In the embodiment shown in fig. 2, when the gas-liquid mixture enters the housing chamber 22, a gap is left between the umbrella valve cover 60 and the bottom of the second housing 24, and the gas enters the outlet 21 through the gap between the umbrella valve cover 60 and the second housing 24 and lifts the ball valve 5 above the umbrella valve 6, so as to overflow through the outlet 21. When the float 4 floats upwards under the buoyancy of the liquid of the gas-liquid mixture, the connecting rod assembly 7 is driven to float upwards, the umbrella valve cover 60 deforms under the action of the connecting rod assembly 7, and the contact surface between the umbrella valve cover 60 and the bottom of the second shell 24 is gradually increased. As shown in fig. 3 and 5, when the float 4 is lifted to a certain height, the umbrella valve cover 60 is completely sealed at the bottom of the outlet 21, so that it is ensured that the liquid does not flow out of the safety valve 1 through the outlet 21, and the reliability and the air tightness of the safety valve 1 are ensured. In the embodiment shown in fig. 2 to 3, the valve rod 61 has a smaller cross section than the outlet 21, and the umbrella valve cover 60 has a larger covering area than the outlet 21, so that the sealing effect of the umbrella valve 6 can be improved.

In the embodiment shown in fig. 2 to 3, the umbrella valve 6 includes an umbrella valve cover 60, the bottom surface of the second housing 24 is recessed upward to form a receiving groove 27, the receiving groove 27 is located at the bottom of the outlet 21, and the umbrella valve cover 60 is located in the receiving groove 27. So set up, when float 4 floats under the buoyancy, drives link assembly 7 come up to the top of acceping the chamber 22, link assembly 7 butt in the bottom surface of second casing 24, the umbrella valve 6 that is located the holding tank 27 can be better with the bottom surface contact of contact holding tank 27 in order to seal the bottom of export 21 to improve the leakproofness of relief valve 1.

In the embodiment shown in fig. 2 and 3, the safety valve housing 2 further comprises a limiting aperture 28, the limiting aperture 28 being in communication with the outlet 21 and being located at the top of the outlet 21, the ball valve 5 being located within the limiting aperture 28. In the embodiment shown in fig. 2 to 5, the cross section of the limiting aperture 28 is larger than the cross section of the outlet 21. The junction of the limiting hole 28 and the outlet 21 is in smooth transition and is matched with the ball valve 5. The ball valve 5 is arranged at the joint of the limit hole 28 and the outlet 21, when the gas in the gas-liquid mixture enters the accommodating cavity 22, the pressure in the accommodating cavity 22 is greater than the atmospheric pressure, the ball valve 5 floats upwards under the action of the pressure, a gap is reserved between the ball valve 5 and the limit hole 28, and the gas overflows through the gap. When the pressure in the housing chamber 22 is less than the atmospheric pressure, the ball valve 5 seals against the outlet 21, thereby preventing external air from entering the housing chamber 22 through the limiting hole 28 and the outlet 21.

In the embodiment shown in fig. 1-3, the second housing 24 also includes a limit hole 28 extending therethrough from top to bottom. The top surface of the second housing 24 is recessed downward to form a first reservoir 29, and the first reservoir 29 is located at the peripheral side of the limiting hole 28. The top surface of the second housing 24 is recessed downward to form a second reservoir 30, the second reservoir 30 is located at the peripheral side of the first reservoir 29, and the depth of the second reservoir 30 is smaller than the depth of the first reservoir 29. When the flow rate of the gas in the gas-liquid mixture is high, the gas will carry the liquid out through the outlet 21 and the limiting hole 28, and therefore the first liquid reservoir 29 and the second liquid reservoir 30 are arranged on the peripheral side of the limiting hole 28. With this arrangement, the liquid discharge safety valve 1 can be avoided.

In the embodiment of fig. 2 and 3, the safety valve 1 further comprises a dust-proof member 8, the dust-proof member 8 covering the top of the limiting aperture 28 and the first reservoir 29. In some embodiments, the dust guard 8 may be a felt. The dust-proof member 8 is disposed at the upper portion of the outlet 21 and the limiting hole 28, and can adsorb dust in the gas. In other embodiments, the dust guard 8 may be other fibrous materials, as well, as the application is not limited in this regard.

In the embodiment shown in fig. 7, the safety valve housing 2 further comprises a top cover 31. The top cover 31 is provided on top of the second housing 24. Specifically, the top cover 31 includes a cover portion 310 and a clamping portion 311 connected to the cover portion 310, where the cover portion 310 is covered on the top of the second housing 24, and the clamping portion 311 is located at an edge of the cover portion 310 and extends downward and is clamped to the second housing 24. The top cover 31 is disposed on top of the second housing 24, and forms an exhaust chamber 32, and the clamping portion 311 is provided with at least one exhaust port 33, where the at least one exhaust port 33 communicates with the exhaust chamber 32. The gas in the housing chamber 22 is discharged to the exhaust chamber 32 through the outlet 21 and the limiting hole 28 and is discharged out of the safety valve 1 through the plurality of exhaust ports 33.

In an embodiment of the application, the density of the float 4 is less than the density of the liquid of the gas-liquid mixture. So set up, in the liquid in the gas-liquid mixture got into acceping chamber 22, because the density of float 4 is less than liquid, float 4 can upwards move under the effect of buoyancy to the umbrella valve 6 on the drive link assembly 7 is out of shape in order to cover export 21, can prevent that liquid from flowing out relief valve 1, has improved reliability and the air tightness of relief valve 1.

In some embodiments, the top of the float 4 is provided with at least one protrusion 42, the protrusion 42 abutting against the bottom surface of the second housing 24 when the float 4 floats up to the top of the receiving chamber 22. In the embodiment of the present application, three protrusions 42 are provided on the top surface of the float 4, and the present application does not limit the number of protrusions 42. By this arrangement, the float 4 is prevented from being attached to the bottom surface of the second housing 24 when floating up to the top of the housing chamber 22.

Other embodiments of the application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of the application following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the application pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the application being indicated by the following claims.

It is to be understood that the application is not limited to the precise arrangements and instrumentalities shown in the drawings, which have been described above, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the application is limited only by the appended claims.

Claims (13)

1. A safety valve, comprising:

A safety valve housing comprising an inlet, an outlet, and a receiving cavity in communication with the inlet and the outlet; and

The safety valve floater comprises a floater, a ball valve, an umbrella valve and a connecting rod assembly; the float and the connecting rod assembly are arranged in the accommodating cavity, one end of the connecting rod assembly is movably connected with the safety valve housing, the other end of the connecting rod assembly is movably connected with the float, the umbrella valve is arranged at the top of the connecting rod assembly, part of the umbrella valve is movably arranged at the outlet in a penetrating way, and the ball valve is arranged at the outlet and is positioned above the umbrella valve; when the gas-liquid mixture enters the accommodating cavity through the inlet, the floater floats upwards under the buoyancy action of the liquid of the gas-liquid mixture, and drives the connecting rod assembly to float upwards, so that the umbrella valve is sealed at the bottom of the outlet; when the pressure in the accommodating cavity is lower than the atmospheric pressure, the ball valve seals the top of the outlet.

2. The safety valve according to claim 1, wherein the connecting rod assembly comprises a connecting portion and at least one arm of force connected to the connecting portion, the connecting portion is movably connected to the safety valve housing, and the float is movably connected to an end of the arm of force remote from the connecting portion.

3. The safety valve of claim 2, wherein the linkage assembly further comprises an elastic member;

One end of the elastic piece is fixed on the safety valve shell, and the other end of the elastic piece is fixed on the connecting part; and/or

The elastic piece extends along the length direction of the force arm, and is positioned below the connecting part.

4. The safety valve according to claim 2, wherein the safety valve housing comprises a bracket, the bracket comprises a first limiting part, the connecting part is provided with a second limiting part matched with the first limiting part, and the connecting part is movably connected with the bracket through the matching of the first limiting part and the second limiting part; one of the first limiting part and the second limiting part is a shaft body, and the other is a groove.

5. The safety valve according to claim 2, wherein the force arm comprises a third limiting part, the float is provided with a fourth limiting part matched with the third limiting part, and the force arm is movably connected with the float through the third limiting part and the fourth limiting part; one of the third limiting part and the fourth limiting part is a shaft body, and the other is a groove.

6. The safety valve according to claim 1, wherein the umbrella valve comprises an umbrella valve cover and a valve rod connected with the umbrella valve cover, the top of the valve rod is movably penetrated through the outlet, and the bottom of the valve rod is fixed at the top of the connecting rod assembly;

The cross section of the valve rod is smaller than the cross section of the outlet; and/or

The covering area of the umbrella valve cover is larger than the cross section of the outlet.

7. The safety valve of claim 1, wherein the safety valve housing further comprises a limit orifice in communication with the outlet and located at a top of the outlet, the ball valve being located within the limit orifice;

the cross section of the limiting hole is larger than that of the outlet; and/or

The junction of spacing hole with the export smooth transition just with ball valve looks adaptation.

8. The safety valve according to claim 1, wherein the safety valve housing comprises a first housing and a second housing that covers the top of the first housing, the first housing and the second housing being assembled to form the receiving chamber, the inlet being provided in the first housing, and the outlet being provided in the second housing; the first shell is provided with a limiting piece extending upwards, the middle part of the floater is provided with a positioning groove, and the limiting piece movably penetrates through the positioning groove when the floater floats up and down in the accommodating cavity.

9. The safety valve according to claim 8, wherein the second housing further comprises a limiting hole penetrating up and down; the top surface of second casing undercut forms first reservoir, first reservoir is located the week side of spacing hole.

10. The safety valve according to claim 9, wherein the top surface of the second housing is recessed downward to form a second reservoir, the second reservoir is located on a peripheral side of the first reservoir, and the depth of the second reservoir is less than the depth of the first reservoir; and/or

The safety valve further comprises a dust-proof piece, and the dust-proof piece covers the limiting hole and the top of the first liquid storage groove.

11. The safety valve of claim 8, wherein the safety valve housing further comprises a top cover;

The top cover comprises a covering part and a clamping part connected with the covering part, the covering part is covered at the top of the second shell, and the clamping part is positioned at the edge of the covering part, extends downwards and is clamped with the second shell; and/or

The top cover is arranged at the top of the second shell and forms an exhaust cavity, the clamping part is provided with at least one exhaust port, and the at least one exhaust port is communicated with the exhaust cavity.

12. The safety valve of claim 8, wherein the umbrella valve comprises an umbrella valve cover; the bottom surface of the second shell is recessed upwards to form a containing groove, the containing groove is positioned at the bottom of the outlet, and the umbrella valve cover is positioned in the containing groove.

13. The safety valve according to claim 1, wherein the density of the float is less than the density of the liquid of the gas-liquid mixture; and/or

The safety valve shell comprises a second shell, at least one protruding portion is arranged at the top of the floater, and when the floater floats to the top of the accommodating cavity, the protruding portion abuts against the bottom surface of the second shell.