CN218818391U - Large-flow safety valve - Google Patents
Large-flow safety valve Download PDFInfo
- Publication number
- CN218818391U CN218818391U CN202223341673.2U CN202223341673U CN218818391U CN 218818391 U CN218818391 U CN 218818391U CN 202223341673 U CN202223341673 U CN 202223341673U CN 218818391 U CN218818391 U CN 218818391U
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- Prior art keywords
- valve
- pressure regulating
- valve body
- sealing ring
- safety valve
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- 238000007789 sealing Methods 0.000 claims abstract description 58
- 230000001105 regulatory effect Effects 0.000 claims abstract description 36
- 239000007788 liquid Substances 0.000 claims abstract description 24
- 230000002093 peripheral effect Effects 0.000 claims abstract description 15
- 238000009434 installation Methods 0.000 claims description 10
- 230000001681 protective effect Effects 0.000 claims description 2
- 230000013011 mating Effects 0.000 claims 1
- 230000002035 prolonged effect Effects 0.000 description 7
- 230000004308 accommodation Effects 0.000 description 2
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Safety Valves (AREA)
Abstract
The utility model belongs to the technical field of the valve. In view of the problem that the service life of the existing safety valve is short when the safety valve is under high pressure and large flow, the utility model discloses a high-pressure large-flow safety valve, which structurally comprises a valve body; a joint; the spring seat is movably arranged in the accommodating cavity of the valve body; the pressure regulating screw plug is arranged on the other side of the accommodating cavity; the pressure regulating spring is connected with the pressure regulating screw plug and the spring seat; the valve core can reciprocate along the liquid inlet channel of the valve body; the elastic piece is connected with the valve body and the spring seat; the sealing components are used for sealing between the valve core and the joint and between the valve core and the valve body; the sealing assembly is provided with a first sealing ring and is annular; the inner peripheral surface of the first sealing ring is a cylindrical surface and is attached to the outer peripheral surface of the valve core; and a second seal ring provided on the outer peripheral surface side of the first seal ring and configured to apply a radial pressure to the first seal ring. The safety valve meets the requirements of high pressure and large flow, and has long service life.
Description
Technical Field
The utility model belongs to the technical field of the valve, concretely relates to large-traffic high pressure relief valve.
Background
The safety valve is also called relief valve, it is a safety protection valve, usually connected to high-pressure equipment or high-pressure pipeline, such as high-pressure pump and boiler, under the normal condition, its opening and closing member is under the action of external force and is in normally closed state, when the medium pressure in the high-pressure equipment or pipeline is raised and exceeds the defined value, it can be automatically opened, and can prevent the medium pressure in the pipeline or equipment from exceeding the defined value by discharging medium to the exterior of system so as to ensure personal safety and safety operation of equipment.
The existing safety valve mainly comprises a valve body, a valve core, a valve seat, a pressure regulating spring and the like. The working principle of the safety valve is as follows: the pressure regulating spring is compressed according to the requirement of a high-pressure system, so that the valve core can seal the liquid inlet channel of the valve body by using the elastic force of the pressure regulating spring, and then the outer end of the valve body is connected to high-pressure equipment or a high-pressure pipeline, so that the pressure regulating valve can be used. In the using process, if the pressure of liquid in the high-pressure equipment or the high-pressure pipeline is smaller than the elastic force of the pressure regulating spring, the safety valve does not act; once the pressure of the liquid in the high-pressure equipment or the high-pressure pipeline exceeds a set value, the high-pressure liquid extrudes the valve core inwards through the liquid inlet channel on the valve body, and then the pressure regulating spring is compressed, so that the liquid is discharged outwards through the liquid discharging hole in the valve body, and the purpose of protecting the high-pressure equipment or the high-pressure pipeline is achieved.
However, when the safety valve with the structure is under high pressure and large flow, the valve core can be operated too fast by impact force generated when liquid enters, so that the valve body vibrates, the operation is unstable, and internal parts of the valve body are damaged, thereby prolonging the service life of the safety valve.
SUMMERY OF THE UTILITY MODEL
In view of above-mentioned current relief valve when high pressure, large-traffic, there is the problem that valve body vibration, part fragile lead to relief valve life to reduce, one of the objectives of the utility model is to provide a high-pressure large-traffic relief valve, this relief valve can bear high pressure, large-traffic, and long service life.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a high-pressure large-flow safety valve comprises a valve body, a valve body and a valve body, wherein the valve body is provided with a mounting cavity and an accommodating cavity which are oppositely arranged; the joint is arranged on one side of the installation cavity, which is far away from the containing cavity, and is provided with a liquid inlet channel communicated with the installation cavity; the spring seat is movably arranged in the accommodating cavity; an inner groove is formed in one side, adjacent to the mounting cavity, of the spring seat; the pressure regulating screw plug is arranged on one side of the spring seat, which is far away from the installation cavity; one end of the pressure regulating spring is connected with the spring seat, and the other end of the pressure regulating spring is connected with the pressure regulating screw plug; one end of the valve core is positioned in the liquid inlet channel, and the other end of the valve core penetrates through the valve body and is fixedly connected with the spring seat and can reciprocate along the liquid inlet channel; the elastic piece is arranged in the inner groove and is fixedly connected with the valve body; and the sealing assemblies are used for sealing between the valve core and the joint and between the valve core and the valve body.
The sealing assembly is provided with a first sealing ring and is annular; the inner peripheral surface of the first sealing ring is a cylindrical surface and is attached to the outer peripheral surface of the valve core; and a second seal ring provided on an outer peripheral surface side of the first seal ring and configured to apply a radial pressure to the first seal ring.
In one of the technical solutions of the present invention, the pressure adjusting spring is composed of a plurality of springs nested with each other.
In one embodiment of the present invention, the second seal ring is an O-shaped seal ring.
The utility model discloses an among the technical scheme, be equipped with on the outer peripheral face of first sealing washer with second sealing washer matched with annular positioning groove.
The utility model discloses an among the technical scheme, the spring holder with be provided with spacing arch between the pressure regulating screw plug.
In one of the technical solutions of the present invention, the elastic member is a disc spring.
The utility model discloses an among them technical scheme, the outside of pressure regulating screw plug still is equipped with the safety cover.
The utility model discloses an among the one of them technical scheme, the valve body is integrated into one piece.
As can be seen from the above description, compared with the prior art, the beneficial effects of the present invention are:
1. the elastic piece is arranged, so that the spring seat can be buffered when the valve core is reset, and the valve body is prevented from being damaged due to too high speed when the valve core is reset; furthermore, the first sealing ring with the cylindrical inner peripheral surface is arranged, so that the contact area between the sealing ring and the valve core is increased, the service life of the sealing assembly can be prolonged, and meanwhile, the second sealing ring capable of applying radial pressure to the first sealing ring is arranged, so that the sealing performance of the sealing assembly can be improved, and the service life is prolonged; and finally, a limiting bulge is arranged between the spring seat and the pressure regulating screw plug, so that the moving distance of the valve core can be limited, liquid is prevented from entering the accommodating cavity to corrode the pressure regulating spring, and the service life is prolonged.
2. The pressure regulating spring is formed by combining two springs which are nested with each other, and the requirements of the springs can be reduced under the condition of meeting the requirements of high pressure and large flow, so that the processing difficulty and the cost of the springs are reduced.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the embodiments or technical descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is an enlarged schematic view of a portion a in fig. 1.
Reference numerals are as follows: 1-a linker; 11-a liquid inlet channel; 2-a valve body; 21-mounting a cavity; 22-a housing chamber; 24-a drainage channel; 3-a valve core; 4-spring seats; 41-a limit bump; 5-a pressure regulating spring; 6-pressure regulating screw plug; 61-a protective cover; 7-a sealing assembly; 71-a first sealing ring; 72-a second seal ring; 8-grooves; 9-elastic member.
Detailed Description
In the following, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. Accordingly, the drawings and description are to be regarded as illustrative in nature, and not as restrictive.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
In addition, in the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present application, unless expressly stated or limited otherwise, the recitation of a first feature "on" or "under" a second feature may include the recitation of the first and second features being in direct contact, and may also include the recitation of the first and second features not being in direct contact, but being in contact with another feature between them. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
The embodiment of the utility model discloses large-traffic relief valve of high pressure, its structure is as shown in figure 1-figure 2, including connecting 1, valve body 2, case 3, spring holder 4, pressure regulating spring 5, pressure regulating screw stifled 6, seal assembly 7 and elastic component 9.
Specifically, valve body 2 one side is equipped with installation cavity 21, and the opposite side is equipped with holding chamber 22, and the middle part is equipped with the connecting hole that communicates installation cavity 21 and holding chamber 22. The inner wall of the mounting cavity 21 is provided with a liquid drainage channel 24. In the present embodiment, the valve body 2 is integrally formed.
The joint 1 is arranged outside the installation cavity 21 and is used for connecting a pipeline, and a liquid inlet channel 11 communicated with the installation cavity 21 is arranged on the joint.
Wherein, the inner walls of the liquid inlet channel 11 and the connecting hole are provided with a plurality of grooves 8 for installing the sealing component 7.
The spring seat 4 is movably mounted on a side of the accommodation chamber 22 adjacent to the mounting chamber 21.
The pressure regulating screw plug 6 is arranged at the other side of the accommodating cavity 22, namely opposite to the spring seat 4.
The pressure regulating spring 5 is cylindrical, a spring seat 4 at one end is fixedly connected, and the other end is fixedly connected with a pressure regulating screw plug 6.
One end of the valve core 3 is positioned in the liquid inlet channel 11, and the other end is fixedly connected with the spring seat 4 and can reciprocate along the liquid inlet channel 11 and the connecting hole.
A plurality of sealing assemblies 7 are correspondingly arranged in the grooves 8 one by one and are used for sealing between the joint 1 and the valve core 3 and between the valve core 3 and the valve body 2, and each sealing assembly comprises a first sealing ring 71 and a second sealing ring 72.
The first seal ring 71 is circular and has a cylindrical inner surface; the inner peripheral surface of the first seal ring 7 is attached to the outer peripheral surface of the valve body 3.
The second sealing ring 72 is an O-ring and is disposed in the groove 8 for applying a radial pressure to the first sealing ring 71, so that the first sealing ring 71 and the valve core 3 are in close contact.
By adopting the structure, the inner circumferential surface of the first sealing ring 71 is a cylindrical surface, compared with an O-shaped sealing ring, the contact area is increased, and therefore the sealing property and the service life can be improved; meanwhile, the second sealing ring 72 and the first sealing ring 71 are arranged to form a composite sealing structure, so that the first sealing ring and the valve core 3 can form reliable sealing, and the service life is prolonged.
The elastic member 9 is installed in the accommodation chamber 22, is disposed in an inner groove of the spring seat 4, and is connected with the valve body 2 for buffering the impact between the spring seat 4 and the valve body 2.
The utility model discloses an in one of them embodiment, for reducing the requirement to the spring to reduce the processing degree of difficulty and the cost of spring, realize that high pressure, the case under the large-traffic resets, pressure regulating spring 5 is formed by two nested two spring combinations each other.
The utility model discloses an in one of them embodiment, when too big for preventing pressure, the sliding distance of case 3 is too much, leads to liquid to get into holding chamber 22, and the one side that spring holder 4 and adjusting screw plug 6 are relative is provided with spacing arch 41 to the sliding distance to case 3 limits.
The utility model discloses an in one of them embodiment, the outside that adjusting screw plug 6 kept away from valve body 2 part is still overlapped and is equipped with safety cover 61 to avoid the dust to get into and personnel's mistake bumps.
As a specific embodiment of the present invention, an annular positioning groove having an arc-shaped longitudinal section is provided on the outer circumferential surface of the first seal ring 71. The annular positioning groove and the second sealing ring 72 are adapted to make the second sealing ring 72 and the first sealing ring 71 closely contact, thereby facilitating the improvement of the sealing performance.
As can be seen from the above description, the working principle and the beneficial effects of the embodiment of the present invention are:
the elastic piece 9 is arranged, so that the spring seat 4 can be buffered when the valve core 3 is reset, and the valve body 2 is prevented from being damaged due to the fact that the speed is too high when the valve core 3 is reset; furthermore, the first sealing ring 71 with the cylindrical inner peripheral surface is arranged, so that the contact area between the sealing ring and the valve core 3 is increased, the service life of the sealing assembly can be prolonged, and meanwhile, the second sealing ring 72 capable of applying radial pressure to the first sealing ring 71 is arranged, so that the sealing performance of the sealing assembly can be improved, and the service life can be prolonged; furthermore, a limiting bulge 41 is arranged between the spring seat 4 and the pressure regulating screw plug 6, so that the moving distance of the valve core 3 can be limited, liquid is prevented from entering the accommodating cavity 22 to corrode the pressure regulating spring 5, and the service life is prolonged; finally, the pressure regulating spring 5 is formed by combining two springs which are nested with each other, and the requirements of the springs can be reduced under the condition of meeting the requirements of high pressure and large flow, so that the processing difficulty and the cost of the springs are reduced.
The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (8)
1. A high flow safety valve, comprising:
the valve body is provided with a mounting cavity and an accommodating cavity which are arranged oppositely;
the joint is arranged on one side of the installation cavity, which is far away from the accommodating cavity, and is provided with a liquid inlet channel communicated with the installation cavity;
the spring seat is movably arranged in the accommodating cavity; an inner groove is formed in one side, adjacent to the mounting cavity, of the spring seat;
the pressure regulating screw plug is arranged on one side of the spring seat, which is far away from the installation cavity;
one end of the pressure regulating spring is connected with the spring seat, and the other end of the pressure regulating spring is connected with the pressure regulating screw plug;
one end of the valve core is positioned in the liquid inlet channel, and the other end of the valve core penetrates through the valve body and is fixedly connected with the spring seat and can reciprocate along the liquid inlet channel;
the elastic piece is arranged in the inner groove and is fixedly connected with the valve body;
a plurality of sealing components for sealing between the valve core and the joint and between the valve core and the valve body;
the seal assembly has:
the first sealing ring is annular; the inner peripheral surface of the first sealing ring is a cylindrical surface and is attached to the outer peripheral surface of the valve core;
and the second sealing ring is arranged on one side of the peripheral surface of the first sealing ring and is used for applying radial pressure to the first sealing ring.
2. The mass flow safety valve of claim 1, wherein the pressure regulating spring is comprised of a plurality of springs nested within one another.
3. The high flow safety valve of claim 1, wherein the second seal ring is an "O" ring.
4. The high flow safety valve of claim 3, wherein the outer peripheral surface of the first sealing ring is provided with an annular positioning groove for mating with the second sealing ring.
5. The high flow safety valve of claim 1, wherein a limit protrusion is provided between the spring seat and the pressure regulating plug.
6. The mass flow safety valve of claim 1, wherein the resilient member is a disc spring.
7. The mass flow safety valve of claim 1, wherein the pressure regulating screw plug is further provided with a protective cover on the outer side.
8. The high flow safety valve of claim 1, wherein the valve body is integrally formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223341673.2U CN218818391U (en) | 2022-12-14 | 2022-12-14 | Large-flow safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223341673.2U CN218818391U (en) | 2022-12-14 | 2022-12-14 | Large-flow safety valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218818391U true CN218818391U (en) | 2023-04-07 |
Family
ID=87273512
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223341673.2U Active CN218818391U (en) | 2022-12-14 | 2022-12-14 | Large-flow safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218818391U (en) |
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2022
- 2022-12-14 CN CN202223341673.2U patent/CN218818391U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |