CN2450478Y - Reusable relief valve - Google Patents
Reusable relief valve Download PDFInfo
- Publication number
- CN2450478Y CN2450478Y CN 00236165 CN00236165U CN2450478Y CN 2450478 Y CN2450478 Y CN 2450478Y CN 00236165 CN00236165 CN 00236165 CN 00236165 U CN00236165 U CN 00236165U CN 2450478 Y CN2450478 Y CN 2450478Y
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- CN
- China
- Prior art keywords
- valve
- explosion
- spring
- valve seat
- released
- 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 - Lifetime
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Abstract
The utility model relates to a reusable relief valve, comprising a valve seat, a valve plate, a valve cover, a spring and a bolt. The valve seat is positioned at the bottom of the valve. The valve cover is positioned at the top of the valve. The valve plate is positioned on the valve seat. A sealing pair is arranged between the valve plate and the valve seat. One end of the spring touches and presses the valve plate, and the other end touches and presses the valve cover. The valve seat is connected with the valve cover with the bolt. The utility model can be repeatedly used and can be automatically closed. The utility model has the advantages of high strength, light weight, and easy installation. The utility model is especially suitable for being used in systems which use gas, air, etc., as working medium and has lower pressure.
Description
The utility model relates to a kind of explosion venting device, especially is installed in the explosion-released valve in the medium such as coal gas, belongs to the venting of dust explosion valve technology field.
It is in the equipment or pipeline of working medium that explosion-released valve is installed in coal gas, air etc., and when pressure medium surpassed regime values or hazardous condition occurs, explosion-released valve was opened rapidly, and discharge medium prevents apparatus overload or blast, is a kind of important safety device.Existing explosion-released valve; be provided with the explosion diaphragm in the valve; the explosion diaphragm is made of foil (stainless steel sheets, aluminium flake or aluminum alloy sheet); be carved with rill on the diaphragm; when pressure medium surpasses explosion diaphragm strength; diaphragm breaks rapidly along rill and blows, and dissolution medium is to realize the anti-explosion safety protective action.The explosion-released valve of this kind explosion membrane type, it is little to have the cracking pressure error, and the opening time is short, venting of dust explosion efficient advantages of higher, but also there is following defective simultaneously: one. the explosion diaphragm can only disposablely use, and needs more to renew again diaphragm after each explosion, upgrades trouble, two. need shut down when upgrading diaphragm, the equipment that influences runs well three. and explosion diaphragm sheet is easily aging, tired, corrosion, needs periodic replacement, otherwise cracking pressure is reduced, too early venting of dust explosion; Four. can't close voluntarily behind the venting of dust explosion, influence is to the control of equipment or container inner medium.For this reason, need the novel venting of dust explosion valve of development, to satisfy usage requirement better.
It is a kind of reusable that the purpose of this utility model is to provide, the explosion-released valve that can close voluntarily after the keying.
The purpose of this utility model is achieved in that
A kind of reusable explosion-released valve, comprise valve seat 1, valve plate 2, valve gap 3, spring 4, bolt 5 in its fundamental composition, wherein, valve seat is positioned at the valve bottom, valve gap is positioned at the valve top, and valve plate is positioned on the valve seat, is provided with sealing pair between valve plate and the valve seat, one end of spring presses valve plate, the other end presses valve gap, links into an integrated entity with bolt between valve seat and the valve gap.
Above-mentioned explosion-released valve, described sealing pair structure be, establishes rubber seal 6 on valve seat, establishes raised seals ring 7 on the valve gap, and the cross section of seal ring is trapezoidal, and the seal ring end face is an arc.
Above-mentioned explosion-released valve, the intermediate portion double as guide pillar of described bolt, described valve plate is provided with pilot hole, is provided with guide sleeve 8 in the pilot hole, and guide sleeve is enclosed within on the guide pillar.
Above-mentioned explosion-released valve, described valve gap is provided with spring socket sleeve 9, and described spring is arranged in spring socket sleeve.
Above-mentioned explosion-released valve, the quantity of described spring are 3, and the quantity of described bolt is 3.
The utility model substitutes explosion diaphragm sheet with valve plate, is provided with sealing pair between valve plate and the valve seat, and valve plate can be closed behind the venting of dust explosion voluntarily by the rapid venting of dust explosion of setting of cracking pressure under spring control.Defective such as the utility model abandoned the disposable use of existing explosion-released valve explosion diaphragm, can not close voluntarily has simple in structurely, and intensity is big, in light weight, easily install, advantage such as usability is reliable, suiting especially is being to use in the lower system of working medium and pressure with coal gas, air etc.
The utility model is described in further detail below in conjunction with accompanying drawing.
Fig. 1 is the utility model structural representation;
Fig. 2 is the plan view of Fig. 1.
Fig. 1,2 illustrated embodiments are one to be used for the larger caliber explosion-released valve on equipment such as low-pressure gas, air or the pipeline.
Consult Fig. 1,2, among the figure, valve seat 1 is the flange body of a hollow, fixedlys connected with equipment or pipeline, and valve plate 2 and upward protruding seal ring 7 thereof adopt thin walled structuress, and purpose is to alleviate the weight of valve plate, makes it to be quick on the draw; The cross section of rubber seal 6 is trapezoidal, it is up-narrow and down-wide trapezoidal that the seal groove shape of inlaying seal ring on the valve seat also should be mutually, seal ring detached seal groove during this kind mosaic structure can prevent to use, and the seal face of seal ring 7 is an arc, can adapt to the soft seal requirement of materials such as rubber well.
Because pressure medium is lower, for guaranteeing that the low-pressure state lower valve is quick on the draw, this valve port footpath is bigger, and spring should be selected soft spring for use, when valve aperture is big, the valve plate diameter is big, bearing area is big, so can improve the sensitivity of punishing reaction by law, can guarantee that valve promptly opens and closes flexibly under lower pressure, because the valve plate diameter is bigger, for the assurance spring force acts on the valve plate equably, and make spring be easy to coiling, be provided with three springs, three springs are distributed on the valve plate, for making things convenient for the fixing of spring position, outside spring 4, be provided with spring socket sleeve 9, spring socket sleeve 9 is fixed on the valve plate, height when its height should be in compression limit less than spring is to guarantee the valve plate free lifting.
Three bolts 5 are uniform along the valve seat 1 of hollow, there is screw thread at bolt 5 two ends, and the lower end screw thread is fixedlyed connected with the tapped hole on the valve seat 1, and the upper end screw thread passes the back by the screw on the valve gap 3 and is connected with nut 10, screw the pressure of nut 10 adjustable springs 4, valve plate is opened and closed by the venting of dust explosion pressure of setting.
Because the wooden partition of valve plate 2 is thinner, for improving steering capability, installed guide sleeve 8 in the pilot hole of valve plate 2 additional, the height of guide sleeve is much larger than valve plate thickness, to guarantee the guide function of guide sleeve.
The present embodiment inside nominal diameter is 400-600MM, and the venting of dust explosion cracking pressure is 4600-6000ba, Applicable temperature≤200 ℃, and seal ring is a silicone rubber.
Claims (5)
1. reusable explosion-released valve, it is characterized in that, comprise valve seat [1], valve plate [2], valve gap [3], spring [4], bolt [5] in its fundamental composition, wherein, valve seat is positioned at the valve bottom, and valve gap is positioned at the valve top, valve plate is positioned on the valve seat, be provided with sealing pair between valve plate and the valve seat, spring one end presses valve plate, the other end presses valve gap, links into an integrated entity with bolt between valve seat and the valve gap.
2. explosion-released valve according to claim 1 is characterized in that, described sealing pair structure is, establishes rubber seal [6] on valve seat, establishes raised seals ring [7] on the valve gap, and the cross section of seal ring is trapezoidal, and the seal ring end face is an arc.
3. explosion-released valve according to claim 2 is characterized in that, the intermediate portion double as guide pillar of described bolt, and described valve plate is provided with pilot hole, is provided with guide sleeve [8] in the pilot hole, and guide sleeve is enclosed within on the guide pillar.
4. explosion-released valve according to claim 3 is characterized in that, described valve gap is provided with spring socket sleeve [9], and described spring is arranged in spring socket sleeve.
5. explosion-released valve according to claim 4 is characterized in that, the quantity of described spring is 3, and the quantity of described bolt is 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00236165 CN2450478Y (en) | 2000-06-05 | 2000-06-05 | Reusable relief valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00236165 CN2450478Y (en) | 2000-06-05 | 2000-06-05 | Reusable relief valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2450478Y true CN2450478Y (en) | 2001-09-26 |
Family
ID=33597751
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00236165 Expired - Lifetime CN2450478Y (en) | 2000-06-05 | 2000-06-05 | Reusable relief valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2450478Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102466065A (en) * | 2010-11-15 | 2012-05-23 | 江苏神通阀门股份有限公司 | Spring self-closing type multistage explosion venting valve |
| CN102777768A (en) * | 2011-05-11 | 2012-11-14 | 大丰市丰泰机电有限公司 | Gas explosion protection top device |
| CN104565831A (en) * | 2014-12-30 | 2015-04-29 | 特瑞斯能源装备股份有限公司 | Explosion-proof pressure regulating box |
| CN105090575A (en) * | 2015-05-20 | 2015-11-25 | 唐山市润捷机械设备制造有限公司 | Self-closed gas safety explosion venting valve |
| CN105937639A (en) * | 2016-07-16 | 2016-09-14 | 邹敏 | Automatic safety pressure-relief protecting device for high-pressure pipeline |
| CN106989008A (en) * | 2017-04-19 | 2017-07-28 | 宁波合力机泵股份有限公司 | A kind of groove type safety valve |
| CN110985726A (en) * | 2019-12-26 | 2020-04-10 | 苏州市淳然环境技术有限公司 | Isolating valve with explosion venting function for downstream pipeline of dust remover |
-
2000
- 2000-06-05 CN CN 00236165 patent/CN2450478Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102466065A (en) * | 2010-11-15 | 2012-05-23 | 江苏神通阀门股份有限公司 | Spring self-closing type multistage explosion venting valve |
| CN102777768A (en) * | 2011-05-11 | 2012-11-14 | 大丰市丰泰机电有限公司 | Gas explosion protection top device |
| CN104565831A (en) * | 2014-12-30 | 2015-04-29 | 特瑞斯能源装备股份有限公司 | Explosion-proof pressure regulating box |
| CN105090575A (en) * | 2015-05-20 | 2015-11-25 | 唐山市润捷机械设备制造有限公司 | Self-closed gas safety explosion venting valve |
| CN105937639A (en) * | 2016-07-16 | 2016-09-14 | 邹敏 | Automatic safety pressure-relief protecting device for high-pressure pipeline |
| CN106989008A (en) * | 2017-04-19 | 2017-07-28 | 宁波合力机泵股份有限公司 | A kind of groove type safety valve |
| CN106989008B (en) * | 2017-04-19 | 2019-11-26 | 宁波合力机泵股份有限公司 | A kind of groove type safety valve |
| CN110985726A (en) * | 2019-12-26 | 2020-04-10 | 苏州市淳然环境技术有限公司 | Isolating valve with explosion venting function for downstream pipeline of dust remover |
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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 |
Granted publication date: 20010926 |