CN110094559A - A kind of explosion-proof flame-retardant breather valve - Google Patents
A kind of explosion-proof flame-retardant breather valve Download PDFInfo
- Publication number
- CN110094559A CN110094559A CN201810093707.XA CN201810093707A CN110094559A CN 110094559 A CN110094559 A CN 110094559A CN 201810093707 A CN201810093707 A CN 201810093707A CN 110094559 A CN110094559 A CN 110094559A
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- CN
- China
- Prior art keywords
- valve
- valve body
- disc
- deck
- pressure valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/18—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on either side
- F16K17/19—Equalising valves predominantly for tanks
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Safety Valves (AREA)
Abstract
The present invention relates to a kind of explosion-proof flame-retardant breather valves.The breather valve includes valve body, nut, pressing plate, sealing ring, positive pressure valve disc, shield, negative pressure valve disc, washer and valve deck, the top of valve body is arranged in the valve deck, the engaging portion of valve deck and valve body is arranged in the washer, one layer of back-fire relief corrugated plating is arranged in the valve deck and valve interior wall, the shield is arranged in valve body side, the positive pressure valve disc and negative pressure valve disc is separately positioned in valve body, the positive pressure valve disc and negative pressure valve disc is made of disk and column respectively, the disk lower surface setting sealing ring and pressing plate, and it is fixed by the nut on the outside of column.The configuration of the present invention is simple, Fire resistances are good, the operation is stable, external and internal pressure adjustment speed are fast, it is convenient to install and maintain, reduce physical deterioration, long service life in tank, have prevention smothering action to flame, applicating medium range is wide.
Description
Technical field
The present invention relates to a kind of air pressure balance valve of tank body more particularly to a kind of explosion-proof flame-retardant breather valves.
Background technique
There is a kind of positive/negative-pressure safety valve in the market comprising valve body, valve seat, flap, pressure setting device, valve seat are installed on
In Zhong mouthfuls of channels of valve body, flap is installed on valve seat outlet, and pressure setting device is by setting spring, spring capping and adjusts screw group
At setting spring is installed between spring capping and the flap back side, and the planar central where valve clack sealing surface is formed with negative pressure and releases
Hole is formed with auxiliary-seat on the flap lower end surface close to negative pressure escape orifice circumference, is equipped with secondary flap, the pair in Zhong mouthfuls of sides of auxiliary-seat
Flap is fixedly mounted on the lower end of valve rod, and spring base is installed in valve rod upper end, and it is whole that negative pressure is installed between the spring base and the flap back side
Determine spring.Although this positive/negative-pressure safety valve can play the bidirectional modulation of positive pressure and negative pressure, since it is by means of bullet
The elastic force of spring controls to adjust positive/negative-pressure Zhong row, on the one hand smaller due to that can bear pressure in tank, on the other hand in order to more smart
Pressure change in quasi- calibrating tank, when using this positive/negative-pressure safety valve, it is necessary to the lesser spring of coefficient of elasticity is selected,
However in actual use, the lesser spring of coefficient of elasticity with the increase for using the time, understand midwifery and change by coefficient of elasticity, makes
At spring accuracy decline.On the other hand, the reaction rate of spring is slower, especially when used for a long time, if without staff
It observes and makes adjustment to spring pressure in time, this positive/negative-pressure safety valve is extremely difficult to technique requirement.So if in production
It observes and makes adjustment to spring pressure not in time, be extremely difficult to technique requirement.
Summary of the invention
The present invention provides that a kind of structure is simple, Fire resistances are good, the operation is stable, external and internal pressure in order to solve problem above
Adjustment speed is fast, it is convenient to install and maintain, reduce physical deterioration, explosion-proof flame-retardant breather valve with long service life in tank.
The technical scheme is that the breather valve includes valve body, nut, pressing plate, sealing ring, positive pressure valve disc, prevents
The top of valve body is arranged in shield, negative pressure valve disc, washer and valve deck, the valve deck, and the washer is arranged in valve deck and valve
One layer of back-fire relief corrugated plating is arranged in the engaging portion of body, the valve deck and valve interior wall, and the shield is arranged in valve body side,
The positive pressure valve disc and negative pressure valve disc is separately positioned in valve body, and the positive pressure valve disc and negative pressure valve disc are respectively by disk
It constitutes with column, the disk lower surface setting sealing ring and pressing plate, and is fixed by the nut on the outside of column.
The configuration of the present invention is simple, Fire resistances are good, the operation is stable, external and internal pressure adjustment speed are fast, it is convenient to install and maintain, subtract
Physical deterioration, long service life in few tank, have prevention smothering action to flame, applicating medium range is wide.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention.
1 is valve body in figure, and 2 be nut, and 3 be pressing plate, and 4 be sealing ring, and 5 be positive pressure valve disc, and 6 be shield, and 7 be negative pressure valve
Disk, 8 be washer, and 9 be valve deck.
Specific embodiment
A kind of explosion-proof flame-retardant breather valve, the breather valve include valve body 1, nut 2, pressing plate 3, sealing ring 4, positive pressure valve disc
5, the top of valve body 1 is arranged in shield 6, negative pressure valve disc 7, washer 8 and valve deck 9, the valve deck 9, and the washer 8 is arranged
In the engaging portion of valve deck 9 and valve body 1, one layer of back-fire relief corrugated plating, the shield 6 is arranged in the valve deck 9 and 1 inner wall of valve body
It is arranged in 1 side of valve body, the positive pressure valve disc 5 and negative pressure valve disc 7 are separately positioned in valve body 1,5 He of positive pressure valve disc
Negative pressure valve disc 7 is made of disk and column respectively, the disk lower surface setting sealing ring 4 and pressing plate 3, and is passed through
Nut 2 on the outside of column is fixed.
When pressure inside the tank is in the control pressure limit of breather valve, breather valve does not work, and keeps the leakproofness of tank body.
When supplementing medium in tank, the gas pressure of tank body inner upper space is increased, when the operation positive pressure for reaching breather valve
When, positive pressure valve disc 5 is jacked up, exhaled gas, and pressure inside the tank is made not continue to increase；When pressure inside the tank drops to the behaviour of breather valve
When making negative pressure, the atmosphere outside tank body jacks up the negative pressure valve disc 7 of breather valve, enters ambient atmos in tank body, keeps tank inner canister
Outer air pressure balance.
Above embodiments are only to illustrate the invention and not limit technical solution described in the invention；Cause
This, is although this specification has been carried out detailed description to the invention referring to above-mentioned each embodiment, this field
It is to be appreciated by one skilled in the art that still can modify to the invention or equivalent replacement；And all do not depart from this
The technical solution and its improvement of the spirit and scope of innovation and creation, should all cover the scope of the claims in the invention
In.
Claims (1)
1. a kind of explosion-proof flame-retardant breather valve, it is characterised in that: the breather valve includes valve body, nut, pressing plate, sealing ring, just
The top of valve body is arranged in pressure valve disk, shield, negative pressure valve disc, washer and valve deck, the valve deck, and the washer setting exists
One layer of back-fire relief corrugated plating is arranged in the engaging portion of valve deck and valve body, the valve deck and valve interior wall, and the shield setting exists
Valve body side, the positive pressure valve disc and negative pressure valve disc are separately positioned in valve body, the positive pressure valve disc and negative pressure valve disc point
It is not made of disk and column, the disk lower surface setting sealing ring and pressing plate, and by the outside of column
Nut is fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810093707.XA CN110094559A (en) | 2018-01-31 | 2018-01-31 | A kind of explosion-proof flame-retardant breather valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810093707.XA CN110094559A (en) | 2018-01-31 | 2018-01-31 | A kind of explosion-proof flame-retardant breather valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110094559A true CN110094559A (en) | 2019-08-06 |
Family
ID=67442372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810093707.XA Pending CN110094559A (en) | 2018-01-31 | 2018-01-31 | A kind of explosion-proof flame-retardant breather valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110094559A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111252404A (en) * | 2020-03-03 | 2020-06-09 | 孙淑芳 | Mechanical breather valve of vault oil tank |
| CN114688323A (en) * | 2021-03-24 | 2022-07-01 | 上海实华石化设备有限公司 | Explosion-proof breather valve for oil tank |
-
2018
- 2018-01-31 CN CN201810093707.XA patent/CN110094559A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111252404A (en) * | 2020-03-03 | 2020-06-09 | 孙淑芳 | Mechanical breather valve of vault oil tank |
| CN114688323A (en) * | 2021-03-24 | 2022-07-01 | 上海实华石化设备有限公司 | Explosion-proof breather valve for oil tank |
| CN114688323B (en) * | 2021-03-24 | 2024-03-19 | 上海实华石化设备有限公司 | Explosion-proof breather valve for oil tank |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190806 |
|
| WD01 | Invention patent application deemed withdrawn after publication |