CN2154081Y - Anti-explosive, anti-fire respirtory valve - Google Patents
Anti-explosive, anti-fire respirtory valve Download PDFInfo
- Publication number
- CN2154081Y CN2154081Y CN 93214974 CN93214974U CN2154081Y CN 2154081 Y CN2154081 Y CN 2154081Y CN 93214974 CN93214974 CN 93214974 CN 93214974 U CN93214974 U CN 93214974U CN 2154081 Y CN2154081 Y CN 2154081Y
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- China
- Prior art keywords
- valve
- negative pressure
- fire
- retardant
- malleation
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- Expired - Fee Related
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Abstract
The utility model relates to an anti-explosive and anti-fire respiratory valve which is an anti-explosion and anti-fire inner through safety device used for storage tanks for crude oil and storage tanks for light oil. The anti-explosion and anti-fire device and the respiration valve are arranged in one valve body. A positive pressure valve plate and a negative pressure valve plate are arranged on the same shaft line. A special air inlet passage is arranged in the shell of the respiration valve to lead the air inlet and the air exhaust of the respiration valve to be combined into one opening. The air inlet and the air exhaust of the respiration are communicated with atmosphere. A multilayer stainless steel anti-explosion and anti-fire core is arranged on the opening. The central shaft line of the anti-explosion and anti-fire core is perpendicular to the central shaft lines of the positive pressure valve plate and the negative pressure valve plate. The utility model has the advantages of good safe ventilation property, anti-explosion and anti-fire property, reasonable and compact structure, small size, light weight, and low cost.
Description
The utility model belongs to the anti-explosion fire-retardant ventilation safety equipment of vertical fixed roof tank.
When existing vertical fixed roof tank stores crude oil, light oil and some petrochemicals, in order to ventilate and the anti-explosion fire-retardant security needs, tank valves and oil tank spark arrester all are housed simultaneously, play the effect of ventilation and anti-explosion fire-retardant safety respectively, because two kinds of equipment simple superposition are used together, not only investment is big, and volume is big, and is relatively heavier.
The domestic and international at present fire prevention breather valve that also has breather valve and spark arrester to be integrated, but its malleation valve disc and negative pressure valve disc adopt and are arranged in parallel, and air inlet and give vent to anger and be respectively two openings when leading to atmosphere is just as two equipment, thereby physical dimension is still bigger, and weight is also considerable.Simultaneously, because its open to atmosphere air inlet all becomes vertical direction downwards with tank deck with the gas outlet, in case because external cause is when the oil gas burning takes place in the air inlet of breather valve or gas outlet, flame promptly enables to be hindered outside jar, also can vertically influence the tank deck temperature raises, cause the accident that is difficult to expect, be unfavorable for guaranteeing the fire safety of oil tank.
The purpose of this utility model is to design a kind ofly not only has good ventilation and anti-explosion fire-retardant performance simultaneously, and compact conformation is reasonable, and volume is little, and is in light weight, the new type explosion proof fire-retardant breather valve that cost is low.
For achieving the above object, the utility model anti-explosion fire-retardant breather valve is made up of breather valve housing, malleation valve disc, malleation valve seat, negative pressure valve disc, negative pressure valve seat, anti-explosion fire-retardant core etc.Malleation valve disc and negative pressure valve disc are arranged on the same axis, are provided with special inlet channel in the breather valve housing, thereby make the air inlet of breather valve and give vent to anger all by same shell nozzle.The anti-explosion fire-retardant core then is installed in this shell nozzle place, its central axis becomes to be arranged vertically with the central axis of malleation valve disc and negative pressure valve disc, flame retardant bed is a porous crack round taper hole, by the center fixation bolt flank of dust cover and anti-explosion fire-retardant core and shell nozzle is fixed into one, the upper press cover that has groove closely is fixed on the breather valve housing with single ended bolt.Connect with static conducting device between malleation valve disc and negative pressure valve disc and the housing, the anti-explosion fire-retardant core is made up of the multilayer hole corrosion resistant plate that gross thickness is not less than 34mm, the annular seating face width degree that malleation valve seat and negative pressure valve are made seat is not more than 2mm, and the material of malleation valve disc and negative pressure valve disc and malleation valve seat and negative pressure valve seat can be fluorine material or metal material.
The utility model is owing to be designed to an organic whole with breather valve and spark arrester, flame retardant bed adopts multi-layer porous crack corrosion resistant plate, especially by special inlet channel is set in the breather valve housing, make the open to atmosphere air inlet of breather valve and give vent to anger and merge into a mouth, thereby not only have the good ventilation and the performance of anti-explosion fire-retardant, and compact conformation, volume is little, in light weight, cost is low.Simultaneously, because the open to atmosphere single import and export of breather valve become horizontal direction with tank deck, can not produce big influence, thereby can guarantee the fire safety of oil tank the tank deck temperature.
Design feature and embodiment to the utility model anti-explosion fire-retardant breather valve does to describe in further detail below in conjunction with accompanying drawing.
Fig. 1 is the structure chart of anti-explosion fire-retardant breather valve.
As shown in Figure 1, the utility model anti-explosion fire-retardant breather valve is made up of breather valve housing (9), malleation valve disc (10), malleation valve seat (11), negative pressure valve disc (6), negative pressure valve seat (5), anti-explosion fire-retardant core (3) etc.Malleation valve disc (10) and negative pressure valve disc (6) are arranged on the same axis, in breather valve housing (9), be provided with special inlet channel (12), the air inlet of breather valve and giving vent to anger all by same shell nozzle (4), anti-explosion fire-retardant core (3) then is installed in outside the breather valve shell nozzle (4), its central axis becomes to be arranged vertically with the central axis of malleation valve disc (10) with negative pressure valve disc (6), anti-explosion fire-retardant core (3) is made up of the multi-layer porous crack corrosion resistant plate that gross thickness is not less than 34mm, by centre bolt (1) itself and dust cover (2) neck with shell nozzle (4) is fused; The upper press cover (7) that has groove closely is connected on the breather valve housing (9) with single ended bolt.Connect with static conducting device (8) between malleation valve disc (10) and negative pressure valve disc (6) and the breather valve housing (9).The annular seating face width degree of malleation valve seat (11) and negative pressure valve seat (5) is not more than 2mm, malleation valve disc (10) and negative pressure valve disc (6) and malleation valve seat (11) and negative pressure valve seat (5) are if adopt the manufacturing of fluorine material, then become the weather proof type anti-explosion fire-retardant breather valve, be applicable to-35 ℃～+ 60 ℃ environment; If adopt the metal material manufacturing, then become the plain edition anti-explosion fire-retardant breather valve, be applicable in 0 ℃～+ 80 ℃ the environment.
Its course of action is seen Fig. 1, and when jar external pressure during greater than the jar internal pressure, negative pressure valve disc (6) is opened, and in air flowed into jar by anti-explosion fire-retardant core (3) admission passage (12) back, up to the jar internal and external pressure balance, negative pressure valve disc (6) was closed; Otherwise when jar internal pressure during greater than the jar external pressure, malleation valve disc (10) is opened, and gas is outer up to the jar internal and external pressure balance by anti-explosion fire-retardant core (3) drain tank in jar, and malleation valve disc (10) is closed.
The pressure at expulsion that can control breather valve by the weight that changes malleation valve disc (10)+355Pa～+ 1765Pa between, the admission pressure that the weight that changes negative pressure valve disc (6) can be controlled breather valve-295Pa～-490Pa between.
Breather valve housing (9) all adopts aluminium alloy casting with gland (7), its intensity can be born in the hydraulic pressure of 0.9MPa pressure, the air inlet of breather valve and exhaust are combined into a mouth, and throughput can reach the regulation of SY7511 fully, and the performance of anti-explosion fire-retardant device also can reach the requirement of UL525 fully.
Claims (5)
1, a kind of anti-explosion fire-retardant breather valve, form by breather valve housing (9), malleation valve disc (10) malleation valve seat (11), negative pressure valve disc (6), negative pressure valve seat (5), anti-explosion fire-retardant core (3) etc., it is characterized in that malleation valve disc (10) and negative pressure valve disc (6) are arranged on the same axis, in breather valve housing (9), be provided with special inlet channel (12), the air inlet of breather valve and giving vent to anger all by same shell nozzle (4); Anti-explosion fire-retardant core (3) then is installed in breather valve shell nozzle (4) and locates, and its central axis becomes to be arranged vertically with the central axis of malleation valve disc (10) with negative pressure valve disc (6), and flame retardant bed is a porous crack round taper hole; Fuse by the neck of center fixation bolt (1) dust cover (2) and anti-explosion fire-retardant core (3) and shell nozzle (4); The upper press cover (7) that has groove closely is connected face on the breather valve housing (9) with single ended bolt.
2, anti-explosion fire-retardant breather valve as claimed in claim 1 is characterized in that connecting with static conducting device (8) between malleation valve disc (10) and negative pressure valve disc (6) and the breathing valve body (9).
3, anti-explosion fire-retardant breather valve as claimed in claim 1 is characterized in that anti-explosion fire-retardant core (3) is made up of the multilayer hole corrosion resistant plate that gross thickness is not less than 34mm.
4, anti-explosion fire-retardant breather valve as claimed in claim 1 is characterized in that the annular seating face width degree of malleation valve seat (11) and negative pressure valve seat (5) is not more than 2mm.
5, anti-explosion fire-retardant breather valve as claimed in claim 1 is characterized in that the material of malleation valve disc (10) and negative pressure valve disc (6) and malleation valve seat (11) and negative pressure valve seat (5) can be fluorine material or metal material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93214974 CN2154081Y (en) | 1993-06-07 | 1993-06-07 | Anti-explosive, anti-fire respirtory valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93214974 CN2154081Y (en) | 1993-06-07 | 1993-06-07 | Anti-explosive, anti-fire respirtory valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2154081Y true CN2154081Y (en) | 1994-01-26 |
Family
ID=33795610
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93214974 Expired - Fee Related CN2154081Y (en) | 1993-06-07 | 1993-06-07 | Anti-explosive, anti-fire respirtory valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2154081Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102553108A (en) * | 2012-02-03 | 2012-07-11 | 无锡博睿奥克电气有限公司 | Orifice-plate spark particle obstructing device |
| CN102895750A (en) * | 2012-09-29 | 2013-01-30 | 江苏及时雨消防科技有限公司 | Tank cover air inlet device and fire extinguisher |
| CN110397772A (en) * | 2019-08-09 | 2019-11-01 | 吴宝艇 | A kind of edible oil tank breather valve of the anti-freeze type for preventing water droplet from penetrating into |
| CN117450270A (en) * | 2023-09-07 | 2024-01-26 | 普瑞泰格(南京)安全设备有限公司 | Breather valve sealing mechanism and breather valve |
-
1993
- 1993-06-07 CN CN 93214974 patent/CN2154081Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102553108A (en) * | 2012-02-03 | 2012-07-11 | 无锡博睿奥克电气有限公司 | Orifice-plate spark particle obstructing device |
| CN102895750A (en) * | 2012-09-29 | 2013-01-30 | 江苏及时雨消防科技有限公司 | Tank cover air inlet device and fire extinguisher |
| CN110397772A (en) * | 2019-08-09 | 2019-11-01 | 吴宝艇 | A kind of edible oil tank breather valve of the anti-freeze type for preventing water droplet from penetrating into |
| CN117450270A (en) * | 2023-09-07 | 2024-01-26 | 普瑞泰格(南京)安全设备有限公司 | Breather valve sealing mechanism and breather valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |