CN213685433U - Fire-retardant vacuum pressure valve - Google Patents
Fire-retardant vacuum pressure valve Download PDFInfo
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- CN213685433U CN213685433U CN202022333127.9U CN202022333127U CN213685433U CN 213685433 U CN213685433 U CN 213685433U CN 202022333127 U CN202022333127 U CN 202022333127U CN 213685433 U CN213685433 U CN 213685433U
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- fire retardant
- pressure valve
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- vacuum pressure
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Abstract
The utility model relates to a back-fire relief vacuum pressure valve, which comprises a valve body, the inside back-fire relief cavity that is provided with of valve body breathes the cavity, back-fire relief cavity and breathing cavity are connected, the inside back-fire relief device that is provided with of back-fire relief cavity, breathe the inside pressure regulator that is provided with of cavity. The utility model discloses the respiratory function and the back-fire relief function that possess simultaneously adopt lightweight design and light material moreover, have reduced holistic weight greatly, convenient operation and maintenance.
Description
Technical Field
The utility model relates to a breather valve technical field especially relates to a back-fire relief vacuum pressure valve.
Background
The breather valve is a protective device used in the industries of petroleum, chemical engineering, natural gas and the like, and not only can maintain the air pressure balance of the storage tank, but also can ensure that the storage tank is prevented from being damaged when the storage tank is in overpressure and vacuum; and the oxidation and the loss of the medium in the storage tank can be reduced, and the breather valve is an important safe energy-saving product for maintaining the air pressure balance of the storage tank and reducing the volatilization of the medium.
The all-weather fire-retardant breather valve is used as the most common process valve at the top of the storage tank, the performance of the all-weather fire-retardant breather valve directly influences the safety of the storage tank, and most of the existing vacuum pressure valves installed in gas stations do not have a fire-retardant function, have function loss and have potential safety hazards; and a flame arrester is additionally arranged below the vacuum pressure valve in some oil stations, so that the weight of pipe end equipment is greatly increased, the difficulty of maintenance is increased, and the investment capital of the equipment is increased.
Disclosure of Invention
The utility model aims at the above-mentioned problem, provide a back-fire relief vacuum pressure valve.
The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a back-fire relief vacuum pressure valve, includes the valve body, inside back-fire relief cavity, the breathing cavity of being provided with of valve body, back-fire relief cavity and breathing cavity are connected, the inside back-fire relief device that is provided with of back-fire relief cavity, the inside pressure regulator that is provided with of breathing cavity.
Further specifically, the bottom of the fire retardant cavity is provided with a fixed support, and the fire retardant device is fixed on the fixed support through a bolt.
Further specifically, pressure regulator includes valve rod, spring, malleation valve disc, negative pressure valve disc, the valve rod passes through bolted connection malleation valve disc and negative pressure valve disc, spring one end is fixed on the malleation valve disc, and the other end is fixed on the negative pressure valve disc, the malleation valve disc separates breathing cavity and back-fire relief cavity, the negative pressure valve disc separates breathing cavity and external world.
Further specifically, the fire retardant device comprises an upper cover plate, a lower cover plate, a fire retardant core and a fixing bolt, through holes are formed in the upper cover plate, the lower cover plate and the fire retardant core, and the fixing bolt sequentially penetrates through the through holes of the upper cover plate, the fire retardant core and the lower cover plate and is fixed.
Further specifically, the top of the breathing cavity is provided with a rainproof dust removal cover.
Further specifically, breathing holes are formed in two sides of the rainproof and dust-removing cover.
Further specifically, a connecting flange is arranged at the bottom of the fire retardant cavity and connected with an external part.
Further specifically, a sealing ring is arranged outside the fire retardant chamber.
More specifically, the valve body is made of light materials.
Further specifically, the fire retardant device is made of stainless steel.
The utility model has the advantages that: after adopting above-mentioned structure, realized the combination of breathing function and back-fire relief function, adopted lightweight design and light material moreover, reduced holistic weight greatly, convenient operation and maintenance.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic view of a first fire retardant core of the present invention;
fig. 3 is a schematic view of the structure of the fire retardant core of the present invention.
In the figure: 1. a firestop chamber; 2. a breathing chamber; 3. a pressure regulator; 4. a rain-proof dust removal cover; 5. a connecting flange; 11. a fire retardant device; 12. a fixed support; 13. a seal ring; 31. a valve stem; 32. a spring; 33. a positive pressure valve disc; 34. a negative pressure valve disc; 41. a breathing hole; 111. an upper cover plate; 112. a lower cover plate; 113 a fire barrier core; 114. and (5) fixing the bolt.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1, the fire retardant vacuum pressure valve comprises a valve body, a fire retardant cavity 1 and a breathing cavity 2 are arranged in the valve body, the fire retardant cavity 1 is connected with the breathing cavity 2, a fire retardant device 11 is arranged in the fire retardant cavity 1, and a pressure regulator 3 is arranged in the breathing cavity 2. The bottom of the fire retardant cavity 1 is provided with a fixed support 12, the fire retardant device 11 is fixed on the fixed support 12 through a bolt, and the fixed support 12 is fixed on the inner wall of the fire retardant cavity 1 through a bolt. According to the different arrangement positions of the fire retardant cavity 1 and the breathing cavity 2, the scheme can have two embodiments, wherein in one embodiment, the fire retardant cavity 1 is arranged above the breathing cavity 2, and oil gas firstly passes through the breathing cavity 2 and then enters the fire retardant cavity 1; in another embodiment, the fire retardant chamber 1 is arranged below the breathing chamber 2, and oil gas firstly passes through the fire retardant chamber 1 and then enters the breathing chamber 2.
As shown in fig. 2 and 3, the fire retardant device 11 comprises an upper cover plate 111, a lower cover plate 112, a fire retardant core 113 and a fixing bolt 114, wherein through holes are formed in the upper cover plate 111, the lower cover plate 112 and the fire retardant core 113, and the fixing bolt 114 sequentially penetrates through the through holes of the upper cover plate 111, the fire retardant core 113 and the lower cover plate 112 and is fixed. In order to prevent the fire retardant device from rusting, the fire retardant device is made of stainless steel materials.
In order to prevent external dust and rainwater from entering the device, the top of the breathing chamber 2 is provided with a rainproof dust-removing cover 4, and two breathing holes 41 communicated with the atmosphere are arranged on two sides of the rainproof dust-removing cover 4.
The bottom of the fire retardant cavity 1 is provided with a connecting flange 5, and the connecting flange 5 is connected with an external part.
In order to increase the sealing performance, a sealing ring 13 is arranged outside the fire retardant chamber 1.
In order to reduce the overall weight of the device and facilitate the maintenance and overhaul of operators, the valve body is made of light materials.
The working principle is as follows: when the pressure in the tank is within the control range of the breather valve, the breather valve does not work, and the sealing performance of the tank body is kept; when the medium is supplemented into the tank, the pressure in the tank rises, and when the positive pressure of the operation of the breather valve is reached, the positive pressure valve disc 33 is jacked open to breathe out gas, so that the pressure in the tank does not rise any more; when the pressure in the tank is reduced to the operation negative pressure of the breather valve, the negative pressure valve disc 34 of the breather valve is jacked up by the atmosphere outside the tank, so that the outside gas enters the tank, and the pressure outside the tank is kept balanced.
The operating principle of the fire retardant device is that heat generated by combustion is quickly dissipated through the metal mesh, so that the temperature of the lower side of the fire retardant core is reduced below a burning point, flame is prevented from passing through the fire retardant core, and the effect of fire retardant is achieved.
To sum up, the utility model discloses a combination of breathing function and back-fire relief function adopts lightweight design and light material moreover, has reduced holistic weight greatly, convenient operation and maintenance.
The present application has been described in connection with only the presently preferred embodiments with the understanding that the present disclosure is not to be considered as limiting, and the present application is not limited to the examples described above, but rather, it is to be understood that changes, modifications, additions or substitutions that are within the spirit and scope of the application by one of ordinary skill in the art are included.
Claims (10)
1. The utility model provides a back-fire relief vacuum pressure valve, its characterized in that, includes the valve body, inside back-fire relief cavity (1) that is provided with of valve body, respiratory cavity (2), back-fire relief cavity (1) and respiratory cavity (2) are connected, back-fire relief device (11) are provided with to back-fire relief cavity (1) inside, respiratory cavity (2) inside is provided with pressure regulator (3).
2. A fire retardant vacuum pressure valve as claimed in claim 1 wherein the fire retardant chamber is provided with a fixed support (12) at the bottom and the fire retardant means (11) is bolted to the fixed support (12).
3. A fire retardant vacuum pressure valve as claimed in claim 1 wherein the pressure regulator (3) comprises a valve stem (31), a spring (32), a positive pressure valve disc (33) and a negative pressure valve disc (34), the valve stem (31) is connected with the positive pressure valve disc (33) and the negative pressure valve disc (34) through bolts, one end of the spring (32) is fixed on the positive pressure valve disc (33), the other end is fixed on the negative pressure valve disc (34), the positive pressure valve disc (33) separates the breathing chamber (2) from the fire retardant chamber (1), and the negative pressure valve disc (34) separates the breathing chamber (2) from the outside.
4. A fire retardant vacuum pressure valve as claimed in claim 1, wherein the fire retardant device (11) comprises an upper cover plate (111), a lower cover plate (112), a fire retardant core (113) and a fixing bolt (114), through holes are arranged on the upper cover plate (111), the lower cover plate (112) and the fire retardant core (113), and the fixing bolt (114) passes through the through holes of the upper cover plate (111), the fire retardant core (113) and the lower cover plate (112) in sequence and is fixed.
5. A fire retardant vacuum pressure valve as claimed in claim 1 wherein a rain and dust proof cover (4) is provided on top of the breathing chamber (2).
6. A fire retardant vacuum pressure valve as claimed in claim 5 wherein said rain and dust cover (4) is provided with breathing holes (41) on both sides.
7. A fire retardant vacuum pressure valve as claimed in claim 1 wherein the fire retardant chamber (1) is provided with a connecting flange (5) at the bottom, the connecting flange (5) being connected to external components.
8. A fire retardant vacuum pressure valve as claimed in claim 1 wherein the fire retardant chamber (1) is externally provided with a sealing ring (13).
9. A fire retardant vacuum pressure valve as claimed in claim 1 wherein said valve body is of lightweight material.
10. A fire retardant vacuum pressure valve as claimed in claim 1 wherein the fire retardant means (11) is of stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022333127.9U CN213685433U (en) | 2020-10-19 | 2020-10-19 | Fire-retardant vacuum pressure valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022333127.9U CN213685433U (en) | 2020-10-19 | 2020-10-19 | Fire-retardant vacuum pressure valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213685433U true CN213685433U (en) | 2021-07-13 |
Family
ID=76758349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022333127.9U Active CN213685433U (en) | 2020-10-19 | 2020-10-19 | Fire-retardant vacuum pressure valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213685433U (en) |
-
2020
- 2020-10-19 CN CN202022333127.9U patent/CN213685433U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 215334 No.2 workshop, no.218 Chenghu Road, Kunshan Development Zone, Suzhou City, Jiangsu Province (east side of the fourth floor) Patentee after: Suzhou YUENENG Technology Co.,Ltd. Address before: 215334 No.2 workshop, no.218 Chenghu Road, Kunshan Development Zone, Suzhou City, Jiangsu Province (east side of the fourth floor) Patentee before: SUZHOU YUENENG ELECTRONICS CO.,LTD. |
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| CP01 | Change in the name or title of a patent holder |