CN107420606A - A kind of reciprocating back-fire relief pressure relief device - Google Patents
A kind of reciprocating back-fire relief pressure relief device Download PDFInfo
- Publication number
- CN107420606A CN107420606A CN201710515035.2A CN201710515035A CN107420606A CN 107420606 A CN107420606 A CN 107420606A CN 201710515035 A CN201710515035 A CN 201710515035A CN 107420606 A CN107420606 A CN 107420606A
- Authority
- CN
- China
- Prior art keywords
- fire relief
- helical pitch
- pitch distance
- distance rod
- bonnet
- 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
Links
- 239000007787 solid Substances 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims description 9
- 238000004880 explosion Methods 0.000 abstract description 18
- 239000000428 dust Substances 0.000 abstract description 14
- 239000002360 explosive Substances 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 abstract description 5
- 238000002485 combustion reaction Methods 0.000 abstract description 3
- 230000001960 triggered effect Effects 0.000 abstract description 2
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 238000013022 venting Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000006837 decompression Effects 0.000 description 2
- 239000002737 fuel gas Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 241000208125 Nicotiana Species 0.000 description 1
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 210000003746 feather Anatomy 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/12—Covers for housings
-
- 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
- F16K17/36—Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position
Abstract
The invention belongs to security technology area,It is related to one kind in imflammable gas,The reciprocating back-fire relief pressure relief device being applicable in the process unit or pipeline of dust combustion explosion danger,Including two helical pitch distance rods,Valve seat and bonnet,Adpting flange is installed on valve seat,The top and bottom of helical pitch distance rod are respectively and fixedly installed on bonnet and valve seat,Valve block is installed between helical pitch distance rod,The both ends of valve block are located on helical pitch distance rod,Valve block can move up and down along helical pitch distance rod,Back-fire relief is arranged with the outside of helical pitch distance rod on valve seat to disappear pyrosphere,The disappear upper end of pyrosphere of back-fire relief is fixedly connected on bonnet,Back-fire relief, which disappears, is provided with solid keel on the outside of pyrosphere,Returning spring is installed between valve block and bonnet,Hanger is fixedly mounted on bonnet,Explosive flame will not be leaked during whole reciprocating back-fire relief pressure relief device release blast pressure,Subsequent explosion accident will not be triggered,And the reciprocating back-fire relief pressure relief device may be reused,Explosion-proof cost is saved.
Description
Technical field
The invention belongs to security technology area, is related to a kind of technique in imflammable gas, dust combustion explosion danger and fills
Put or pipeline in be applicable reciprocating back-fire relief pressure relief device.
Background technology
In recent years, China causes huge life and property loss there occurs a lot of gases, dust explosion accident.But
At present China be related to the production of industrial imflammable gas dust, store, transport about 60,000 general lack of effective blast control
Equipment.
Dust explosion venting pressure technology is one of method for alleviating dust explosion harm, is to be applied to combustible dust processing equipment
A kind of protective measure.In metallurgical pulverized coal preparation, metallic article processing, grain processing, feed manufacturing, food processing, weaving
The industry such as product processing, the processing of leather feather products, wood furniture processing, paper products processing, rubber and plastic processing, tobacco processing
There is dust antiknock demand.《Guide for pressure-relieving of dust explosion》(GB/T15605-2008) clear stipulaties in, in process equipment and
The intensity of pipeline is not enough to bear under its actual condition, when internal dust explosion produces superpressure, should set venting of dust explosion mouth.
In the prior art compared with frequently with pressure relief device be rupture disk.Important safety as pressure vessel, pipeline etc. fills
Put, when rupture disk pressure at both sides difference reaches predetermined value, rupture disk can fragmentation, realization releases pressure, so as to ensure the person and
Property safety.Rupture disk is widely used in the fields such as chemical industry, oil, metallurgy, nuclear power, aviation.But using rupture disk as pressure release
Following both sides technical problem be present in device：Can be chipping when on the one hand due to rupture disk explosion, therefore fragment be present and fly
The potential safety hazard gone out；The polishing processing of cut on another aspect rupture disk, it is difficult to control polishing degree, easily cause same batch production
The performance difference of product, its stability are inadequate, it is difficult to control accurate venting pressure.
In addition, prior art while blast pressure is laid down in release, along with the release of flame, can be made to exterior space
Into influence, and it is possible to trigger subsequent explosion accident.And prior art is disposable, it is impossible to reuses this release blast
The function of pressure.
The content of the invention
In view of this, the present invention is in order to solve the above problems, there is provided a kind of imflammable gas, dust combustion explosion danger
The reciprocating back-fire relief pressure relief device being applicable in process unit or pipeline.
To reach above-mentioned purpose, the present invention provides following technical scheme：Including two helical pitch distance rods, valve seat and bonnet,
Adpting flange is installed, the top and bottom of helical pitch distance rod are respectively and fixedly installed on bonnet and valve seat, and helical pitch is fixed on valve seat
Away from valve block is provided between bar, the both ends of valve block are located on helical pitch distance rod, and valve block can move down along on helical pitch distance rod
It is dynamic, back-fire relief is arranged with the outside of helical pitch distance rod on valve seat and is disappeared pyrosphere, the disappear upper end of pyrosphere of back-fire relief is fixedly connected on bonnet, lower end
It is fixed on valve seat, back-fire relief, which disappears, is provided with solid keel on the outside of pyrosphere, is provided with returning spring between valve block and bonnet, on bonnet
It is installed with hanger.
Further, the top and bottom of helical pitch distance rod are mounted by means of bolts on bonnet and valve seat.
Further, the both ends of valve block are installed with the collar, and the collar is set on helical pitch distance rod.
Further, the collar is the O-ring of quality of rubber materials.
Further, back-fire relief disappears pyrosphere in annular shape, and back-fire relief disappears, and pyrosphere is interior to fill the fiery material that disappears.
Further, buckle is installed on the solid keel that back-fire relief disappears on the outside of pyrosphere.
Further, skid-proof rubber is scribbled on buckle.
Further, hanger is in arc-shaped.
The beneficial effects of the present invention are：
1st, during reciprocating back-fire relief pressure relief device of the invention work, adpting flange on valve seat is first passed through by the reciprocating resistance
Fiery pressure relief device is arranged on explosion-proof pipeline or explosion-protection equipment, due to the O-ring of valve block both ends installation quality of rubber materials, O-ring
It is set on helical pitch distance rod, so that valve block can move up and down along helical pitch distance rod；It is quick-fried when occurring in explosion-proof pipeline
When fried, whole blast pressure is acted on valve block, and blast pressure promotes valve block to be moved upwards along helical pitch distance rod, compression reaction
Spring, after valve block is moved to spacing position, valve block stops moving up, and the explosion wave in explosion-proof pipeline is determined by helical pitch
It is discharged into away from the pyrosphere that disappears of back-fire relief on the outside of bar outside whole destructor, explosive flame is disappeared by back-fire relief to be prevented on pyrosphere and be not delivered to
The outside of explosion-protection equipment, after the blast in explosion-proof pipeline terminates, valve block is relied on by the elastic force of compression spring, is returned to and valve seat
With reference to position, complete the back-fire relief decompression function of whole reciprocating back-fire relief pressure relief device.So, whole reciprocating back-fire relief pressure release dress
Exterior space will not be impacted when putting release blast pressure, subsequent explosion accident will not be triggered, and the reciprocating back-fire relief is let out
Pressure device may be reused, and save explosion-proof cost.
2nd, reciprocating back-fire relief pressure relief device of the invention is one of effective blast control equipment, in the blast starting stage,
Blast pressure in explosion-protection equipment or explosion-proof pipeline is released, explosive flame will not be fed through to outside explosion-protection equipment or explosion-proof pipeline
Portion and exterior space is impacted, while after blast terminates, the reciprocating back-fire relief pressure relief device can automatically reset, and prevent
Fuel gas or dust leakage.The reciprocating back-fire relief pressure relief device is reusable, belongs to blank at home on the explosion-proof technology.
3rd, reciprocating back-fire relief pressure relief device of the invention can apply to fuel gas, dust process unit or delivery pipe
On road, exploded when in explosion-protection equipment or explosion-proof pipeline, blast pressure reaches the startup pressure of the reciprocating back-fire relief pressure relief device
During power, device can act opening rapidly, and blast pressure is discharged into explosion-protection equipment or explosion-proof pipeline external, protect explosion-protection equipment or
Explosion-proof pipeline is not by explosive damage, while the reciprocating back-fire relief pressure relief device can hinder the flame in explosion-protection equipment or explosion-proof pipeline
Only, exterior space is not released to, guarantee will not produce to exterior space, will not particularly trigger subsequent explosion.
Brief description of the drawings
In order that the purpose of the present invention, technical scheme and beneficial effect are clearer, the present invention provides drawings described below and carried out
Explanation：
Fig. 1 is the reciprocating back-fire relief pressure relief device structural representation of the present invention；
Fig. 2 is that back-fire relief disappears pyrosphere structural representation in embodiment.
Embodiment
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described in detail.
Reference in Figure of description includes：
Valve seat 11, valve block 12, back-fire relief disappear pyrosphere 13, returning spring 14, helical pitch distance rod 15, bonnet 16, hanger 17, solid
Keel 18.
Reciprocating back-fire relief pressure relief device as shown in Figure 1 and Figure 2, including two helical pitch distance rods 15, valve seat 11 and bonnet
16, adpting flange is installed on valve seat 11, by the adpting flange by whole back-fire relief pressure relief device be arranged on explosion-proof pipeline or
On explosion-protection equipment.The top and bottom of helical pitch distance rod 15 are mounted by means of bolts on bonnet 16 and valve seat 11 respectively, are led
Valve block 12 is installed, the O-ring of quality of rubber materials is fixedly mounted in the both ends of valve block 12, and O-ring, which is set in, leads between journey distance rod 15
On journey distance rod 15, O-ring can move up and down along helical pitch distance rod 15.It is arranged with the outside valve seat 11 of helical pitch distance rod 15
Circular back-fire relief disappears pyrosphere 13, and the back-fire relief filling in pyrosphere 13 that disappears disappears fiery material, and the fiery material that disappears can prevent explosive flame outside
Transmit, prevent trigger subsequent explosion accident, disappear fiery material and back-fire relief disappear pyrosphere 13 upper surface and lower surface between be provided with sealing
Material.Back-fire relief disappears, and solid keel 18 are fixedly mounted on pyrosphere 13, are provided with 5 buckles on solid keel 18, pass through solid keel
18 and the buckle pyrosphere 13 that back-fire relief can be disappeared fix, skid-proof rubber is scribbled on buckle.The disappear upper end of pyrosphere 13 of back-fire relief is fixedly connected on
On bonnet 16, lower end is fixed on valve seat 11.Returning spring 14 is installed between valve block 12 and bonnet 16, peace is fixed on bonnet 16
Fill the hanger 17 of arc-shaped.
During reciprocating back-fire relief pressure relief device work, adpting flange on valve seat 11 is first passed through by the reciprocating back-fire relief pressure release
Device is arranged on explosion-proof pipeline or explosion-protection equipment, and the O-ring on valve block 12 is set on helical pitch distance rod 15, so that
Valve block 12 can move up and down along helical pitch distance rod 15.When explosion time occurs in explosion-proof pipeline, whole blast pressure acts on
On valve block 12, blast pressure promotes valve block 12 to be moved upwards along helical pitch distance rod 15, and then compression reaction spring 14, works as valve block
After 12 are moved to spacing position, valve block 12 stops moving up, and the explosion wave in explosion-proof pipeline passes through helical pitch distance rod 15
The back-fire relief pyrosphere 13 that disappears in outside is discharged into outside whole destructor, and explosive flame is prevented and is not delivered to anti-by the back-fire relief pyrosphere 13 that disappears
The outside of quick-fried device, after the blast in explosion-proof pipeline terminates, valve block 12 is by by the elastic force of compression spring, being returned to and valve seat
11 positions combined, complete the back-fire relief decompression function of whole reciprocating back-fire relief pressure relief device.
Finally illustrate, preferred embodiment above is merely illustrative of the technical solution of the present invention and unrestricted, although logical
Cross above preferred embodiment the present invention is described in detail, it is to be understood by those skilled in the art that can be
Various changes are made to it in form and in details, without departing from claims of the present invention limited range.
Claims (8)
1. a kind of reciprocating back-fire relief pressure relief device, it is characterised in that including two helical pitch distance rods, valve seat and bonnet, the valve
Adpting flange is installed on seat, the top and bottom of the helical pitch distance rod are respectively and fixedly installed on bonnet and valve seat, described
Valve block is installed, the both ends of the valve block are located on helical pitch distance rod, and the valve block can be along leading between helical pitch distance rod
Journey distance rod moves up and down, and is arranged with back-fire relief on the outside of the helical pitch distance rod on valve seat and disappears pyrosphere, and the disappear upper end of pyrosphere of back-fire relief is consolidated
Surely it is connected on bonnet, lower end is fixed on valve seat, and the back-fire relief, which disappears, is provided with solid keel, the valve block and valve on the outside of pyrosphere
Returning spring is installed between lid, hanger is installed with the bonnet.
2. reciprocating back-fire relief pressure relief device as claimed in claim 1, it is characterised in that the upper end of the helical pitch distance rod is with
End is mounted by means of bolts on bonnet and valve seat.
3. reciprocating back-fire relief pressure relief device as claimed in claim 2, it is characterised in that the both ends of the valve block are installed with
The collar, the collar are set on helical pitch distance rod.
4. reciprocating back-fire relief pressure relief device as claimed in claim 3, it is characterised in that the collar is O-shaped for quality of rubber materials
Circle.
5. reciprocating back-fire relief pressure relief device as claimed in claim 4, it is characterised in that the back-fire relief disappears pyrosphere in annular shape,
The back-fire relief disappears, and pyrosphere is interior to fill the fiery material that disappears.
6. reciprocating back-fire relief pressure relief device as claimed in claim 5, it is characterised in that the solid that the back-fire relief disappears on the outside of pyrosphere
Buckle is installed on keel.
7. reciprocating back-fire relief pressure relief device as claimed in claim 6, it is characterised in that scribble skid-proof rubber on the buckle.
8. reciprocating back-fire relief pressure relief device as claimed in claim 7, it is characterised in that the hanger is in arc-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710515035.2A CN107420606A (en) | 2017-06-27 | 2017-06-27 | A kind of reciprocating back-fire relief pressure relief device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710515035.2A CN107420606A (en) | 2017-06-27 | 2017-06-27 | A kind of reciprocating back-fire relief pressure relief device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107420606A true CN107420606A (en) | 2017-12-01 |
Family
ID=60427765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710515035.2A Pending CN107420606A (en) | 2017-06-27 | 2017-06-27 | A kind of reciprocating back-fire relief pressure relief device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107420606A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1275388A (en) * | 1970-03-03 | 1972-05-24 | Metallgesellschaft Ag | An explosion-relief cover for containers, pipelines and the like |
| KR200312623Y1 (en) * | 2003-01-13 | 2003-05-13 | 장익수 | pressure relief valve of pressure chamber for a fire-fighting equipment |
| CN102337970A (en) * | 2010-07-15 | 2012-02-01 | 中国船舶重工集团公司第七一一研究所 | Anti-explosion valve |
| CN202613044U (en) * | 2012-05-23 | 2012-12-19 | 薛道成 | Automatic opening and closing type safe pressure relief explosion-proof device |
| CN104033635A (en) * | 2013-03-07 | 2014-09-10 | 荆门市广恒机电设备有限公司 | Overflow valve for water mist fire extinguishing system |
| CN206233978U (en) * | 2016-10-14 | 2017-06-09 | 上海佳豪船海工程研究设计有限公司 | A kind of new type explosion proof device being applied in gaseous propellant engine blast pipe |
| CN206830909U (en) * | 2017-06-27 | 2018-01-02 | 中煤科工集团重庆研究院有限公司 | A kind of reciprocating back-fire relief pressure relief device |
-
2017
- 2017-06-27 CN CN201710515035.2A patent/CN107420606A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1275388A (en) * | 1970-03-03 | 1972-05-24 | Metallgesellschaft Ag | An explosion-relief cover for containers, pipelines and the like |
| KR200312623Y1 (en) * | 2003-01-13 | 2003-05-13 | 장익수 | pressure relief valve of pressure chamber for a fire-fighting equipment |
| CN102337970A (en) * | 2010-07-15 | 2012-02-01 | 中国船舶重工集团公司第七一一研究所 | Anti-explosion valve |
| CN202613044U (en) * | 2012-05-23 | 2012-12-19 | 薛道成 | Automatic opening and closing type safe pressure relief explosion-proof device |
| CN104033635A (en) * | 2013-03-07 | 2014-09-10 | 荆门市广恒机电设备有限公司 | Overflow valve for water mist fire extinguishing system |
| CN206233978U (en) * | 2016-10-14 | 2017-06-09 | 上海佳豪船海工程研究设计有限公司 | A kind of new type explosion proof device being applied in gaseous propellant engine blast pipe |
| CN206830909U (en) * | 2017-06-27 | 2018-01-02 | 中煤科工集团重庆研究院有限公司 | A kind of reciprocating back-fire relief pressure relief device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171201 |