CN201526372U - Explosion-proof valve - Google Patents
Explosion-proof valve Download PDFInfo
- Publication number
- CN201526372U CN201526372U CN2009202316060U CN200920231606U CN201526372U CN 201526372 U CN201526372 U CN 201526372U CN 2009202316060 U CN2009202316060 U CN 2009202316060U CN 200920231606 U CN200920231606 U CN 200920231606U CN 201526372 U CN201526372 U CN 201526372U
- Authority
- CN
- China
- Prior art keywords
- valve
- silk screen
- fire
- retardant
- annular
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Safety Valves (AREA)
Abstract
The utility model discloses an explosion-proof valve which comprises an annular valve seat and an annular valve cover fixed with the annular valve seat, wherein a flame retardant device is fixed between the annular valve seat and the annular valve cover, the annular valve seat, the annular valve cover and the flame retardant device constitute a valve cavity, a valve plate which can move relative to the annular valve seat and form the sealing with the annular valve seat is arranged in the valve cavity, a spring is arranged between the annular valve cover and the valve plate, wherein two ends of the spring are respectively propped on the annular valve cover and the valve plate, and the flame retardant device is more than one annular mesh plate and annular spiral flame retardant wire mesh formed by winding at least. The explosion-proof valve has the advantages of good flame extinguishing performance, practicality, safety, long-term running and difficult deformation.
Description
Technical field
The utility model relates to a kind of explosion-proof valve.
Background technique
At present, athletic meeting owing to bent axle in the crank case of internal combustion engine causes the mist of oil pinking that crankcase is interior, thereby produce the flame of high pressure draught and high temperature, and explosion-proof valve is arranged on the casing of crankcase, can discharge the pressure of crankcase, in relieving pressure, can stop flame by also closing subsequently to stop air to enter.Common explosion-proof valve, as Chinese patent application number is 2006200408295 disclosed " a kind of explosion-proof valves ", its disclose valve seat, fixedly connected with valve seat and form the valve gap of valve pocket with valve seat, be pressed on valve block on the valve seat, and flame-retardant device by the spring in the valve pocket, flame-retardant device is sleeved on by annular flame-resistant sheet in the air-flow approach of valve flow and the fixed support between two annular flame-resistant sheets by two at least to be formed, the annular flame-resistant sheet is because the lath of tranverse air flow flow direction lamination is formed, and the lath inboard has ripple.The explosion-proof valve of this structure can not be completely with flame extinction in explosion-proof valve, the effect that the high pressure draught that blast is produced also weakens is undesirable.The structure of valve block is also unreasonable, and the seal ring to the valve block place causes damage easily.In addition, as Chinese patent application number is 2006200407574 disclosed " flow guide anti-explosion valves ", with the different structure of above-mentioned " a kind of explosion-proof valve " be to be provided with an air guide sleeve in flame-resistant sheet and the valve pocket, on air guide sleeve, offer pod apertures, on the air guide sleeve substrate guiding piece is set, guiding piece is positioned at the pod apertures side.This explosion-proof valve can make the comparatively even of air blast diversed hole dispersion, but flame can't be extinguished in explosion-proof valve fully.
The model utility content
The technical problem that the utility model requires to solve is at above-mentioned the deficiencies in the prior art, provide a kind of safe in utilization, the knock down the flame performance is good, the explosion-proof valve of long service life.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of explosion-proof valve, comprise ring-shaped valve seats and the annular valve gap of fixing with ring-shaped valve seats, be fixed with flame-retardant device between ring-shaped valve seats and the annular valve gap, ring-shaped valve seats, annular valve gap and flame-retardant device are formed valve pocket, it is can be with respect to ring-shaped valve seats movable and form the valve plate of sealing with ring-shaped valve seats to be provided with in valve pocket, withstands on spring on annular valve gap and the valve plate respectively being provided with two ends between annular valve gap and the valve plate; Described flame-retardant device is an annular web plate and the fire-retardant silk screen of spirality that turns to ring-type at least; The fire-retardant silk screen of the spirality of described ring-type is the different fire-retardant silk screen of spirality of the diameter more than two at least, the fire-retardant silk screen of the spiral that diameter is little is enclosed within the spiral ring of the big external spiral form drag combustion silk screen of diameter, and the helix angle direction of fire-retardant silk screen of spiral and external spiral form drag combustion silk screen is opposite; Angle in the described spirality between the helix angle direction of the outer fire-retardant silk screen of fire-retardant silk screen and spirality is the 15-89 degree; Fire-retardant silk screen center hub one annular web plate is as skeleton in the described spirality.
As the further improved technological scheme of the utility model, the fire-retardant silk screen of described spirality is to be arranged in the stereoscopic grid of loop pads cast or to be had the ventilative foaming metal of through hole by filament or metal fillet.
As the further improved technological scheme of the utility model, the outer fire-retardant silk screen of fire-retardant silk screen and spirality adopts flat filament in the described spirality, the thick 0.03-5mm of silk, the wide 0.5-10mm of silk.
As the further improved technological scheme of the utility model, cover film on the described annular web plate.
Flame-retardant device of the present utility model comprises annular web plate and the many fire-retardant silk screens of spirality that diameter is different, and the helix angle direction of the fire-retardant silk screen of spirality that described many diameters are different is opposite; The annular web plate mainly plays the supporting effect to silk screen, bilayer that the helix angle direction is opposite or multi-layer silk screen have formed a plurality of and repeatedly crooked passages, the flame of high temperature and the air communication of high pressure cross passage because repeatedly bending and being weakened, flame extinguishes fully in explosion-proof valve and weakens air pressure, the knock down the flame performance is good, practical safety; On the other hand, double-deck silk screen has elasticity, can cushion the impact force of high pressure draught, avoid explosion-proof valve because of be heated and long-time running be out of shape.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the structural representation of flame-retardant device of the present utility model.
Fig. 3 is partial cross section's enlarged diagram of flame-retardant device of the present utility model.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described further.
Referring to Fig. 1, Fig. 2 and Fig. 3, a kind of explosion-proof valve, comprise ring-shaped valve seats 1 and annular valve gap 2, ring-shaped valve seats 1 and annular valve gap 2 are bolted to connection, ring-shaped valve seats 1 and and annular valve gap 2 between be fixed with flame-retardant device 3, ring-shaped valve seats 1, annular valve gap 2 and flame-retardant device 3 are formed valve pocket 4, in valve pocket 4, be provided with and form the valve plate 5 that seals with respect to ring-shaped valve seats 1 activity and with ring-shaped valve seats 1, withstand on spring 6 on annular valve gap 2 and the valve plate 5 respectively being provided with two ends between annular valve gap 2 and the valve plate 5, flame-retardant device 3 comprises annular web plate 3-1, the outer fire-retardant silk screen 3-3 of fire-retardant silk screen 3-2 and spirality in the spirality, fire-retardant silk screen 3-2 is looped around annular web plate outside in the spirality, the outer fire-retardant silk screen 3-3 of spirality is looped around fire-retardant silk screen 3-2 outside in the spirality, the helix angle direction of the outer fire-retardant silk screen 3-3 of fire-retardant silk screen 3-2 and spirality is opposite in the spirality, it is 43 degree that angle in the spirality between the helix angle direction of the outer fire-retardant silk screen of fire-retardant silk screen 3-2 and spirality is preferably, 45 degree, 47 degree, 55 degree, 65 degree, 75 degree or 89 degree, present embodiment are 45 degree; The fire-retardant silk screen of described spirality is the stereoscopic grid that is arranged in the loop pads cast by filament or metal fillet, and the outer fire-retardant silk screen 3-3 of fire-retardant silk screen 3-2 and spirality adopts flat filament in the described spirality, the thick 0.07mm of silk, the wide 0.5mm of silk.
When this explosion-proof valve was not worked, because the effect of spring 6, valve plate 5 withstood on the ring-shaped valve seats 1 and with ring-shaped valve seats 1 and forms sealing; During work, valve plate 5 is backed down, the air-flow of hot flame and high pressure flows in the valve pocket 4 along valve plate 5, via annular web plate 3-1 and after being looped around the flame-retardant device 3 that fire-retardant silk screen 3-2 and the outer fire-retardant silk screen 3-3 of spirality form in the spirality of annular web plate 3-1 outside, because bending repeatedly, flame extinction is in the passage of flame-retardant device 3.
Improvement as the foregoing description, flame-retardant device can have the fire-retardant silk screen of spirality of two to three or three above ring-types, the annular web plate is every middle as skeleton at the fire-retardant silk screen of spirality, simultaneously also be provided with annular half tone in the outside of the fire-retardant silk screen of spirality, make the flame-out better effects if of this explosion-proof valve so on the one hand, make this explosion-proof valve not yielding, durable on the other hand; The fire-retardant silk screen of spirality also can adopt the ventilative foaming metal of through hole, i.e. foam-like or sponge shape foaming metal; The outmost turns of the fire-retardant silk screen of spirality is also put an annular web plate, and cover film on this annular web plate is in order to prevent greasy dirt; The fire-retardant silk screen of the spirality of described ring-type is the different fire-retardant silk screen of spirality of two to four diameter at least, flame-out better effects if.
Claims (7)
1. explosion-proof valve, comprise ring-shaped valve seats and the annular valve gap of fixing with ring-shaped valve seats, be fixed with flame-retardant device between ring-shaped valve seats and the annular valve gap, ring-shaped valve seats, annular valve gap and flame-retardant device are formed valve pocket, in valve pocket, be provided with and form the valve plate that seals with respect to the ring-shaped valve seats activity and with ring-shaped valve seats, withstand on spring on annular valve gap and the valve plate respectively being provided with two ends between annular valve gap and the valve plate, it is characterized in that: described flame-retardant device at least for one or more annular web plate and turn to the fire-retardant silk screen of spirality of ring-type.
2. explosion-proof valve according to claim 1 is characterized in that: the fire-retardant silk screen of described spirality is to be arranged in the stereoscopic grid of loop pads cast or to be had the ventilative foaming metal of through hole by filament or metal fillet.
3. explosion-proof valve according to claim 1, it is characterized in that: the fire-retardant silk screen of the spirality of described ring-type is the different fire-retardant silk screen of spirality of the diameter more than two at least, the fire-retardant silk screen of the spiral that diameter is little is enclosed within the spiral ring of the big external spiral form drag combustion silk screen of diameter, and the helix angle direction of fire-retardant silk screen of spiral and external spiral form drag combustion silk screen is opposite.
4. explosion-proof valve according to claim 3 is characterized in that: the angle in the described spirality between the helix angle direction of the outer fire-retardant silk screen of fire-retardant silk screen and spirality is the 15-89 degree.
5. explosion-proof valve according to claim 3 is characterized in that: the outer fire-retardant silk screen of fire-retardant silk screen and spirality adopts flat filament in the described spirality, the thick 0.03-5mm of silk, the wide 0.5-10mm of silk.
6. explosion-proof valve according to claim 1 is characterized in that: fire-retardant silk screen center hub one annular web plate is as skeleton in the described spirality.
7. explosion-proof valve according to claim 1 is characterized in that: cover film on the described annular web plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202316060U CN201526372U (en) | 2009-09-16 | 2009-09-16 | Explosion-proof valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202316060U CN201526372U (en) | 2009-09-16 | 2009-09-16 | Explosion-proof valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201526372U true CN201526372U (en) | 2010-07-14 |
Family
ID=42517660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202316060U Expired - Fee Related CN201526372U (en) | 2009-09-16 | 2009-09-16 | Explosion-proof valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201526372U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104455691A (en) * | 2013-09-16 | 2015-03-25 | 费希尔控制国际公司 | Rotary valve position indicator |
-
2009
- 2009-09-16 CN CN2009202316060U patent/CN201526372U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104455691A (en) * | 2013-09-16 | 2015-03-25 | 费希尔控制国际公司 | Rotary valve position indicator |
| CN104455691B (en) * | 2013-09-16 | 2019-07-12 | 费希尔控制国际公司 | Rotate valve position indicator |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101275487B (en) | Explosion-proof valve | |
| CN102840029B (en) | Flame-retarded explosion-proof valve | |
| CN210219330U (en) | Natural gas pipeline with flame arrester | |
| CN201526372U (en) | Explosion-proof valve | |
| CN101749429B (en) | Fingertip seal structure and back baffle plate thereof | |
| CN103216662A (en) | Solenoid valve | |
| CN204024818U (en) | A kind of crankcase anti-explosion valve | |
| CN204805638U (en) | Ventilation check valve | |
| CN102337970A (en) | Anti-explosion valve | |
| CN101187336B (en) | Explosion-proof valve | |
| CN101187337A (en) | Flame-resistant sheet of explosion-proof valve | |
| CN208703154U (en) | Safety valves for gas | |
| CN201198787Y (en) | Explosion-proof valve | |
| CN206125438U (en) | Boat big gun smoke protection sealing device | |
| CN201069313Y (en) | Dual-performance sealing structure for industrial furnace door | |
| CN201159103Y (en) | Flame-proof piece of explosion-proof valve | |
| CN110440430B (en) | Noise-removing improved air duct support for air conditioner | |
| CN201723312U (en) | Explosion-proof valve | |
| CN201258787Y (en) | Explosion-proof valve | |
| CN211371324U (en) | Helium isolating valve capable of replacing valve seat on line for high-temperature gas cooled reactor | |
| CN207393327U (en) | A kind of crankcase flame retardant type explosion-proof valve | |
| CN202832790U (en) | Anti-explosion valve inflaming retarding plate | |
| CN2516833Y (en) | Back-fire relief valve | |
| CN202802597U (en) | Deflagration-resistant type pipeline flame arrester | |
| CN208582888U (en) | A kind of pipeline fire retardant device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100714 Termination date: 20130916 |