CN2800011Y - Explosion-proof flame-arresting breather valve - Google Patents
Explosion-proof flame-arresting breather valve Download PDFInfo
- Publication number
- CN2800011Y CN2800011Y CN 200520017123 CN200520017123U CN2800011Y CN 2800011 Y CN2800011 Y CN 2800011Y CN 200520017123 CN200520017123 CN 200520017123 CN 200520017123 U CN200520017123 U CN 200520017123U CN 2800011 Y CN2800011 Y CN 2800011Y
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- flame
- arresting
- valve body
- explosion
- valve
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Abstract
The utility model discloses an explosion-proof flame-arresting breather valve belonging to vertical fixed top tank flame-arresting ventilation safe equipment. The utility model is designed to solve the problems that the flame-arresting layer of the existing explosion-proof flame-arresting breather valve has the disadvantages of inconvenient cleaning, maintenance and replacement and the flame-arresting layer can not stop flame sources from entering in a valve body. The explosion-proof flame-arresting breather valve of the utility model comprises a breather valve body, an external breathing opening of the valve body, and the flame-arresting layer fixed to the external breathing opening of the valve body. Adopting the structure, the flame-arresting layer is conveniently cleaned, maintained and replaced; in addition, the flame-arresting layer can thoroughly stop the flame sources from entering in the valve body; the utility model avoids elements in the valve body deformation caused by heating and enhances the safety performance of the explosion-proof flame-arresting breather valve. The utility model is mainly applied to the fixed top tanks of the liquid of class a and class b.
Description
Technical field
The utility model relates to a kind of vertical fixed tank back-fire relief ventilation safety equipment, particularly relates to a kind of anti-explosion fire-retardant breather valve.
Background technique
According to NBS " code for fire protection design of petrochemical enterprises " regulation (GB50160-92): " fixed tank of first, Class B liquid is answered handicapping firearm and inhalation valve ".As seen inhalation valve, flame trap are the indispensable safety installations of storage tank.It can not only keep the storage tank air pressure balance, guarantees that storage tank exempts from destruction when superpressure or vacuum, and can reduce the volatilization and the loss of jar interior medium.
Existing anti-explosion fire-retardant breather valve, as shown in Figure 1, comprise valve body 1, valve gap 2, valve seat 8, pressure valve disc 3, negative pressure valve disc 4 and flame retardant bed 9, described valve gap 2 belows are provided with negative pressure valve disc 4, below negative pressure valve disc 4, be provided with pressure valve disc 3, described pressure valve disc 3 and negative pressure valve disc 4 arranged in co-axial alignment and shared valve body outgoing call suction inlet 5; Described pressure valve disc 3 and negative pressure valve disc 4 bottoms are provided with teflon seal; Described valve gap 2 and negative pressure valve disc 4 coaxial recess are provided with guide pin bushing 19, pass negative pressure valve disc 4 middle parts and extend to be provided with sliding chamber 6, location in the guide pin bushing 19, and the guide rod 7 that described pressure valve disc 3 tops are provided with stretches in the sliding chamber 6, described location; Below the pressure valve disc 3 and be supported on valve seat 8 and be provided with flame retardant bed 9.
During work, when jar internal pressure Overpressure of a safety valve valve disc 3 cracking pressures, pressure valve disc 3 is opened, and drives guide rod 7 upwards motion in sliding chamber 6, location of pressure valve disc 3 tops, and the gas of exhalation drains into outside the valve body 15 through valve body outgoing call suction inlet 5; When jar internal pressure during less than cracking pressure, pressure valve disc 3 falls after rise to original position; Equally, when negative pressure value in the jar during greater than negative pressure valve disc 4 cracking pressures, negative pressure valve disc 4 is opened, the upwards motion in guide pin bushing 19 of sliding chamber 6, the location of described negative pressure valve disc 4 tops, air enters in the jar by negative pressure valve disc 4 belows, go up when the jar internal pressure, when making jar internal pressure less than negative pressure valve disc 4 cracking pressures, negative pressure valve disc 4 falls after rise to original position.
When there is burning things which may cause a fire disaster above-mentioned anti-explosion fire-retardant breather valve outside, follow the valve disc motion burning things which may cause a fire disaster of inhalation valve can enter valve inner, because the existence of flame retardant bed can prevent effectively that burning things which may cause a fire disaster from entering in the jar, guarantee storage tank safety; But in this process,, thereby cause anti-explosion fire-retardant breather valve to be scrapped, cause economic loss because of entering of burning things which may cause a fire disaster can be caused the temperature distortion of valve disc Sealing; And, bring inconvenience for cleaning, maintenance, replacing flame retardant bed because flame retardant bed is arranged at valve inner.
The model utility content
The purpose of this utility model is that the flame retardant bed that solves existing anti-explosion fire-retardant breather valve cleans, overhauls, changes inconvenient, and can not put an end to the fire source and enter the interior problem of valve body, provide a kind of performance easy to use, safe good, compact structure, can thoroughly put an end to the fire source enters the anti-explosion fire-retardant breather valve of valve inner.
For solving the problems of the technologies described above, the utility model adopts following technological scheme: this anti-explosion fire-retardant breather valve, comprise inhalation valve body, valve body outgoing call suction inlet and flame retardant bed, and described flame retardant bed is fixed on the valve body outgoing call suction inlet.
After adopting said structure, because flame retardant bed is fixed on the valve body pneumostome, can be convenient to cleaning, maintenance and the replacing of flame retardant bed, and can thoroughly puts an end to the fire source and enter valve inner, avoid the interior element of valve body because of temperature distortion, improved the Safety performance of anti-explosion fire-retardant breather valve.
Description of drawings
Fig. 1 is the structural representation of existing anti-explosion fire-retardant breather valve.
Fig. 2 is the structural representation of the utility model anti-explosion fire-retardant breather valve.
Embodiment
The utility model is described in more detail below in conjunction with accompanying drawing.
Referring to Fig. 2, the utility model anti-explosion fire-retardant breather valve comprises inhalation valve body 11, valve body outgoing call suction inlet 9 and flame retardant bed 10, described flame retardant bed 10 lateral mid-point vertically are fixed on the connecting rod 13 that is supported in the valve body outgoing call suction inlet 9 by bolt 12, adopt this kind structure, can thoroughly put an end to the fire source and enter valve body 15 inside, effectively prevent valve body 15 interior elements because of temperature distortion, and be convenient to cleaning, maintenance and the replacing of flame retardant bed.
Described anti-explosion fire-retardant breather valve body 11 also can adopt another kind of structure, and this anti-explosion fire-retardant breather valve comprises valve gap 14 and valve body 15, and described valve gap 14 belows are provided with negative pressure valve disc 16, are provided with pressure valve disc 17 below negative pressure valve disc 16; Described valve gap 14 and negative pressure valve disc 16 coaxial recess are provided with guide pin bushing 18, the horizontal neutral position of described negative pressure valve disc 16 is to being provided with guide rod 23, described guide rod 23 stretches in the guide pin bushing 18 straight up, the horizontal neutral position of described pressure valve disc 17 is provided with guide rod 20 straight down, and described guide rod 20 is screwed onto the pull bar 22 that is horizontally placed on the valve seat 21; Described negative pressure valve disc 16 and 17 employings of pressure valve disc have teflon well antifreeze, antiseptic property and make;
When work, when jar internal pressure Overpressure of a safety valve valve disc 17 cracking pressures, pressure valve disc 17 is opened automatically, drives guide rod 20 and pull bar 22 and moves upward, and the gas of exhalation drains into outside the valve body 15 by flame retardant bed 10; When jar internal pressure during less than cracking pressure, pressure valve disc 17 falls after rise to original position.Equally, when negative pressure value in the jar during greater than negative pressure valve disc 16 cracking pressures, negative pressure valve disc 16 is opened automatically, described guide rod 23 is upwards motion in guide pin bushing 18, air enters in the jar by negative pressure valve disc 16 belows, go up when the jar internal pressure, when making jar internal pressure less than negative pressure valve disc 16 cracking pressures, negative pressure valve disc 16 falls after rise to original position.
After unloading flame retardant bed, the utility model can use as inhalation valve merely again, so the versatility of the utility model anti-explosion fire-retardant breather valve is stronger.
As further improvement of the utility model, described flame retardant bed 10 adopts stainless steel anti-explosion fire corrugated sheet, and the both sides of described corrugated sheet are provided with flexible baffle; Described corrugated sheet encompasses and valve body outgoing call suction inlet 9 shape adapting.Adopt this kind structure can make the anti-explosion fire-retardant breather valve compact structure.
Further improve as of the present utility model, described valve body outgoing call suction inlet 9 outer installment have protective housing 24, are used for rainproof dust protection.
Claims (4)
1. an anti-explosion fire-retardant breather valve comprises inhalation valve body, valve body outgoing call suction inlet and flame retardant bed, it is characterized in that: described flame retardant bed is fixed on the valve body outgoing call suction inlet.
2. anti-explosion fire-retardant breather valve according to claim 1 is characterized in that: be supported with connecting rod in the described valve body outgoing call suction inlet, described flame retardant bed lateral mid-point vertically is fixed on the connecting rod by bolt.
3. anti-explosion fire-retardant breather valve according to claim 1 is characterized in that: described flame retardant bed adopts stainless steel anti-explosion fire corrugated sheet.
4. anti-explosion fire-retardant breather valve according to claim 1 is characterized in that: described valve body outgoing call suction inlet outer installment has protective housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520017123 CN2800011Y (en) | 2005-04-19 | 2005-04-19 | Explosion-proof flame-arresting breather valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520017123 CN2800011Y (en) | 2005-04-19 | 2005-04-19 | Explosion-proof flame-arresting breather valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2800011Y true CN2800011Y (en) | 2006-07-26 |
Family
ID=36842507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520017123 Expired - Lifetime CN2800011Y (en) | 2005-04-19 | 2005-04-19 | Explosion-proof flame-arresting breather valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2800011Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101069797B (en) * | 2007-03-29 | 2010-07-14 | 永港伟方（北京）科技股份有限公司 | Fire-retardant filter |
| CN110127236A (en) * | 2019-06-12 | 2019-08-16 | 刘艳文 | A kind of automobile-used breather valve of oil tank |
| CN112728176A (en) * | 2020-12-29 | 2021-04-30 | 江苏复森特种阀门有限公司 | Integrated burning-resistant fire-retardant breather valve |
| CN113251312A (en) * | 2021-07-05 | 2021-08-13 | 江苏信泰化工装备有限公司 | Flame-retardant storage tank breather valve |
| CN114427618A (en) * | 2020-09-23 | 2022-05-03 | 中国石油化工股份有限公司 | All-weather burning-resistant breather valve device |
| CN114427617A (en) * | 2020-09-23 | 2022-05-03 | 中国石油化工股份有限公司 | Integrated burning-resistant breather valve device |
-
2005
- 2005-04-19 CN CN 200520017123 patent/CN2800011Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101069797B (en) * | 2007-03-29 | 2010-07-14 | 永港伟方（北京）科技股份有限公司 | Fire-retardant filter |
| CN110127236A (en) * | 2019-06-12 | 2019-08-16 | 刘艳文 | A kind of automobile-used breather valve of oil tank |
| CN110127236B (en) * | 2019-06-12 | 2020-01-21 | 随州市力神专用汽车有限公司 | Breather valve for tank truck |
| CN114427618A (en) * | 2020-09-23 | 2022-05-03 | 中国石油化工股份有限公司 | All-weather burning-resistant breather valve device |
| CN114427617A (en) * | 2020-09-23 | 2022-05-03 | 中国石油化工股份有限公司 | Integrated burning-resistant breather valve device |
| CN112728176A (en) * | 2020-12-29 | 2021-04-30 | 江苏复森特种阀门有限公司 | Integrated burning-resistant fire-retardant breather valve |
| CN113251312A (en) * | 2021-07-05 | 2021-08-13 | 江苏信泰化工装备有限公司 | Flame-retardant storage tank breather valve |
| CN113251312B (en) * | 2021-07-05 | 2021-09-07 | 江苏信泰化工装备有限公司 | Flame-retardant storage tank breather valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20150419 Granted publication date: 20060726 |