CN206626212U - A kind of unidirectional flame proof valve of normally closed type - Google Patents
A kind of unidirectional flame proof valve of normally closed type Download PDFInfo
- Publication number
- CN206626212U CN206626212U CN201720262390.9U CN201720262390U CN206626212U CN 206626212 U CN206626212 U CN 206626212U CN 201720262390 U CN201720262390 U CN 201720262390U CN 206626212 U CN206626212 U CN 206626212U
- Authority
- CN
- China
- Prior art keywords
- flap
- normally closed
- closed type
- flame proof
- proof 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.)
- Expired - Fee Related
Links
Landscapes
- Safety Valves (AREA)
- Lift Valve (AREA)
Abstract
The utility model discloses a kind of unidirectional flame proof valve of normally closed type, it is characterised in that：It includes bonnet, flap, valve body, pipe flange, the bonnet is by axis connection on the top of the valve body, the action of the flap is controlled by cleaner downstream fan delivery, when blower fan is started working, flap can be opened slowly, reach a state that can carry out medium transmission after a period of time is run, when blower fan shuts down, flap is voluntarily closed by Action of Gravity Field and fitted with the inclined-plane of pipe flange, and row cuts off the transmission of medium therein into mechanical seal；Blast occur when, flap be hit ripple effect close.When downstream cleaner explosion time occurs for the unidirectional flame proof valve of normally closed type described in the utility model, transfer conduit can be cut off rapidly, the explosive source of cut-off cleaner passes through the connection between inlet pipeline and front end accessory equipment, blast is isolated in certain region so that blast loss is limited in controlled range.
Description
Technical field
It the utility model is related to the dust explosion protection field of cleaner, more particularly to a kind of unidirectional flame proof valve of normally closed type.
Background technology
With the development of national economy, dust explosion protection is increasingly taken seriously, and there occurs great powder several times in China
Dust explosion accident, and cause great casualties and property loss.Dust inlet tube on existing most of cleaner
Road, temporarily without blast isolating device, once dust produces blast, will be unable to separate explosion wave and flame transmission in conveying.
With the development of national economy, dust explosion protection is increasingly taken seriously, and arise at the historic moment some cleaners.But
Dust inlet pipeline on existing most of cleaner is in the transmission temporarily without blast isolating device, once dust generation is quick-fried
It is fried, it will be unable to separate explosion wave and flame transmission.Therefore, it is necessary to which one kind can separate shock wave and fire caused by blast
The technology that flame is propagated by pipeline toward the upstream of cleaner, so as to prevent the peace of subsequent explosion, protection staff and equipment
Entirely.
Utility model content
The purpose of the utility model is：Overcome the shortcomings of the prior art, solve dust present in prior art and produce
Blast, the problems such as will be unable to separate explosion wave and flame transmission, there is provided a kind of unidirectional flame proof valve of normally closed type, when downstream is removed
Explosion time occurs for dirt equipment, can cut off transfer conduit rapidly, the explosive source for separating cleaner passes through inlet pipeline and front end
Connection between auxiliary device, blast is isolated in certain region so that blast loss is limited in controlled range.
The technical solution of the utility model is：
A kind of unidirectional flame proof valve of normally closed type, it is characterised in that：It includes bonnet, flap, valve body, pipe flange, the bonnet
By axis connection on the top of the valve body, the action of the flap is controlled by cleaner downstream fan delivery, when blower fan is opened
Flap can be opened slowly during beginning work, a state that can carry out medium transmission be reached after a period of time is run, when blower fan stops
Flap is voluntarily closed by Action of Gravity Field when only operating fits with the inclined-plane of pipe flange, and row cuts off Jie therein into mechanical seal
The transmission of matter；Blast occur when, flap be hit ripple effect close.
Preferably, the unidirectional flame proof valve of the normally closed type sets gear tongue, the gear tongue limitation flap in the inner side of the bonnet
The angle of unlatching is 20 ° -30 °.
Preferably, after the unidirectional flame proof valve of the normally closed type sets one-way damper, blast to occur in one end of the axle, institute
Stating one-way damper can prevent flap from being thrown open by suction function, to avoid subsequent explosion.
Preferably, the unidirectional flame proof valve of the normally closed type also sets up flap support, and the flap support can support the flap,
Strengthen flap overall structure, flap and the flap support does pivotable movement around the axle.
Preferably, the unidirectional flame proof valve of the normally closed type includes bearing, the bearing and the axle and the one-way damper
Connection.
Preferably, deflector is provided with flap support, when being transmitted so as to explosive source, flap is closed rapidly, institute
Stating deflector can touch with the gear whip graft of bonnet, control flap opening angle.
The advantages of the utility model：
1st, the unidirectional flame proof valve of normally closed type described in the utility model can be cut rapidly when downstream cleaner generation explosion time
Disconnected transfer conduit, separate the explosive source of cleaner by the connection between inlet pipeline and front end accessory equipment, will blast every
From in certain region so that blast loss is limited in controlled range.
2nd, the unidirectional flame proof valve of normally closed type described in the utility model can separate shock wave and flame caused by blast and pass through
Pipeline is propagated toward the upstream of cleaner, prevents the safety of subsequent explosion, protection staff and equipment.
3rd, the unidirectional flame proof valve of normally closed type described in the utility model, blast punching can be separated when explosion time occurs for cleaner
Hit ripple and travel to upstream, blast is influenceed into control in certain scope, is effectively protected the safety of personnel and upstream equipment.
4th, the unidirectional flame proof valve of normally closed type described in the utility model uses damper, and the damper can prevent flap by negative
Pressure acts on and unexpected opening, in order to avoid produce secondary quick-fried.
Brief description of the drawings
Below in conjunction with the accompanying drawings and embodiment is further described to the utility model：
Fig. 1 is the unidirectional flame proof valve exploded perspective view of normally closed type described in the utility model.
Fig. 2 is the top view illustration of the unidirectional flame proof valve of normally closed type described in the utility model.
Fig. 3 is the A-A sectional views of the unidirectional flame proof valve of normally closed type described in the utility model.
Fig. 4 is the stereogram schematic diagram of the unidirectional flame proof valve of normally closed type described in the utility model.
View when Fig. 5 is the unidirectional flame proof valve normal condition of normally closed type described in the utility model and used.
Fig. 6 is the view of the unidirectional flame proof valve explosion time of normally closed type described in the utility model.
Wherein：1st, bonnet 2, gear tongue 3, one-way damper 4, bearing 5, flap support 6, flap 7, axle 8, valve body
9th, pipe flange
Embodiment
Below in conjunction with the accompanying drawings and technical solutions of the utility model are described in detail preferred embodiment.
As shown in Fig. 1 to Fig. 6, the utility model discloses a kind of unidirectional flame proof valve of normally closed type, it include bonnet 1, flap 6,
Valve body 8, pipe flange 9, the bonnet 1 are connected to the top of the valve body 8 by axle 7, and the action of the flap 6 is by cleaner
Downstream fan delivery control, when blower fan is started working, the meeting of flap 6 device effect dampened is slow opens, after a period of time is run
Reach a state that can carry out medium transmission, flap 6 is voluntarily closed and pipe flange 9 by Action of Gravity Field when blower fan shuts down
Inclined-plane fit, row into mechanical seal, cut off the transmission of medium therein；Blast occur when, flap 6 be hit ripple effect close
Close.When downstream cleaner explosion time occurs for the unidirectional flame proof valve of normally closed type described in the utility model, can cut off transmission rapidly
Pipeline, separate the explosive source of cleaner by the connection between inlet pipeline and front end accessory equipment, blast is isolated in one
Fixed region so that blast loss is limited in controlled range.
Preferably, the unidirectional flame proof valve of the normally closed type sets gear tongue 2, the gear tongue limitation valve in the inner side of the bonnet 1
The angle that valve 6 is opened is 20 ° -30 °.Opening angle is controlled, transfer conduit can be cut off rapidly when exploding and occurring, separate dedusting
Blast is isolated in certain region by the explosive source of equipment by the connection between inlet pipeline and front end accessory equipment so that
Blast loss is limited in controlled range.
Preferably, after the unidirectional flame proof valve of the normally closed type sets one-way damper 3, blast to occur in one end of the axle 7,
The one-way damper 3 can prevent flap 6 from being thrown open by suction function, to avoid subsequent explosion.It is described in the utility model
The unidirectional flame proof valve of normally closed type can separate shock wave and flame caused by blast and propagated by pipeline toward the upstream of cleaner,
Prevent the safety of subsequent explosion, protection staff and equipment.
Preferably, the unidirectional flame proof valve of the normally closed type also sets up flap support 5, and the flap support 5 can support the valve
Valve 6, the flap are mainly used as strengthening flap overall structure, can set a deflector again in flap support as needed,
When being transmitted so as to explosive source, flap is closed rapidly, while can be touched with the gear whip graft of bonnet, controls flap opening angle, described
Flap 6 and flap support 5 do pivotable movement around the axle 7.It can separate explosion wave when explosion time occurs for cleaner
Upstream is traveled to, blast is influenceed into control in certain scope, is effectively protected the safety of personnel and upstream equipment.
Preferably, the unidirectional flame proof valve of the normally closed type includes bearing 4, the bearing 4 and the axle 7 and the unidirectional damping
Device 3 connects.The one-way damper 3 can prevent the flap opening unexpected by suction function, in order to avoid produce secondary quick-fried.
Preferably, the flap support 5 is made up of light aluminum alloy material.The weight of flap can be mitigated so that flap
Transfer conduit can be cut off rapidly when exploding and occurring, and the explosive source for separating cleaner is set by inlet pipeline and front end accessory
Connection between standby, blast is isolated in certain region so that blast loss is limited in controlled range, and and can plays reinforcement
The integrally-built effect of flap, as needed a deflector can be set in flap support again, so that explosive source transmits
When, flap is closed rapidly, while can be contacted with the supporting plate of ceiling plate portion, controls flap opening angle.
In order that the function of obtaining following component reaches best, while product cost is controlled, the material of the flap 6 is
Stainless steel 304 SS, the material of the axle 7 is carbon steel Q235 or stainless steel 304 SS；The material of the gear tongue 2 for carbon steel Q235 or
Stainless steel 304 SS；The material of the pipe flange 9 is carbon steel Q235 or stainless steel 304 SS.
Preferably, the material of the bonnet 1 is carbon steel Q235 or stainless steel 304 SS.The bonnet 1 can reduce dust and enter
Enter, protect the unidirectional flame proof valve of normally closed type.Both materials are with cost is low, effect is good herein.
Deflector is provided with flap support 5, when being transmitted so as to explosive source, flap 6 is closed rapidly, the water conservancy diversion
Plate can contact with the gear tongue 2 of bonnet 1, control the opening angle of flap 6.
State during the unidirectional flame proof valve normal use of normally closed type is illustrated in figure 3, flap 6 can be by when blower fan is started working
Damper 3 is slowly opened when acting on, and a stable state is reached after a period of time is run.Now whole system can carry out medium
Transmission.When blower fan shuts down, flap 6 is voluntarily closed by Action of Gravity Field and fitted with the inclined-plane of pipe flange 9, and row is close into machinery
Envelope, cuts off the transmission of medium therein.
If Fig. 4 is the state of the unidirectional flame proof valve explosion time of normally closed type, when explosion happens, flap 6 by shock wave Lai
Close.Shock wave caused by blast and pressure will not be come back in pipe-line system, the personal security and equipment safety of suction side
Ensured.One-way damper 3 can prevent 6 opening unexpected by suction function of flap, in order to avoid produce subsequent explosion.
The unidirectional flame proof valve of normally closed type described in the utility model is furnished with one-way damper 3, flap 6, pipe flange 9 and valve body 8,
Its flap 6 is acted by the air quantity of cleaner downstream blower fan to control, and the gear tongue 2 on bonnet 1 limits the opening angle of flap,
Under normal circumstances, when blower fan is inoperative, flap 6, which is affected by gravity, is constantly in closed mode；When flap 6 is opened in normal work
Qi Shi, once the impact for the shock wave that is under pressure, flap 6 can close immediately and the biography of the flame in partitioning system and shock wave
Broadcast, as a result of one-way damper, when downstream dust pelletizing system produces local decompression after blast occurs, flap also will not be immediately
Open, ensure the safety of whole system.
The utility model still has numerous embodiments, all technologies formed using equivalents or equivalent transformation
Scheme, all fall within the scope of protection of the utility model.
Claims (6)
- A kind of 1. unidirectional flame proof valve of normally closed type, it is characterised in that：It includes bonnet, flap, valve body, pipe flange, and the bonnet leads to Axis connection is crossed on the top of the valve body, the action of the flap is controlled by cleaner downstream fan delivery, when blower fan starts Flap can be opened slowly during work, and a state that can carry out medium transmission is reached after a period of time is run, when blower fan stops Flap is voluntarily closed by Action of Gravity Field and fitted with the inclined-plane of pipe flange during operating, and row cuts off medium therein into mechanical seal Transmission；Blast occur when, flap be hit ripple effect close.
- 2. the unidirectional flame proof valve of normally closed type according to claim 1, it is characterised in that：The unidirectional flame proof valve of normally closed type is in institute The inner side for stating bonnet sets gear tongue, and the angle that the gear tongue limitation flap is opened is 20 ° -30 °.
- 3. the unidirectional flame proof valve of normally closed type according to claim 2, it is characterised in that：The unidirectional flame proof valve of normally closed type is in institute The one end for stating axle sets one-way damper, and after blast generation, the one-way damper can prevent flap from being beaten suddenly by suction function Open.
- 4. the unidirectional flame proof valve of normally closed type according to claim 1, it is characterised in that：The unidirectional flame proof valve of normally closed type also exists Flap is set to support on flap, flap and the flap support does pivotable movement around the axle.
- 5. the unidirectional flame proof valve of normally closed type according to claim 3, it is characterised in that：The unidirectional flame proof valve of normally closed type includes Bearing, the bearing are connected with the axle and the one-way damper.
- 6. the unidirectional flame proof valve of normally closed type according to claim 4, it is characterised in that：It is provided with and leads in flap support Flowing plate, when being transmitted so as to explosive source, flap is closed rapidly, and the deflector can touch with the gear whip graft of bonnet, and control flap is opened Open angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720262390.9U CN206626212U (en) | 2017-03-17 | 2017-03-17 | A kind of unidirectional flame proof valve of normally closed type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720262390.9U CN206626212U (en) | 2017-03-17 | 2017-03-17 | A kind of unidirectional flame proof valve of normally closed type |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206626212U true CN206626212U (en) | 2017-11-10 |
Family
ID=60209237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720262390.9U Expired - Fee Related CN206626212U (en) | 2017-03-17 | 2017-03-17 | A kind of unidirectional flame proof valve of normally closed type |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206626212U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106885026A (en) * | 2017-03-17 | 2017-06-23 | 江苏爵格工业设备有限公司 | A kind of unidirectional flame proof valve of normally closed type |
-
2017
- 2017-03-17 CN CN201720262390.9U patent/CN206626212U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106885026A (en) * | 2017-03-17 | 2017-06-23 | 江苏爵格工业设备有限公司 | A kind of unidirectional flame proof valve of normally closed type |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104315935B (en) | Be applicable to dust explosion self-action explosion suppression device in pipeline | |
| CN206626212U (en) | A kind of unidirectional flame proof valve of normally closed type | |
| CN106885026A (en) | A kind of unidirectional flame proof valve of normally closed type | |
| CN204188088U (en) | Dust explosion self-action explosion suppression device in pipeline | |
| CN108716558A (en) | Axial-flow type safety shut-off valve and its superpressure block control system | |
| CN108533765B (en) | A kind of intelligent self-cleaning reason one-way turnover flame proof valve | |
| CN106838405A (en) | A kind of unidirectional flame proof valve open in usual | |
| CN201022922Y (en) | Hydatogenous membranous froth spraying fire fighting device | |
| CN112943997B (en) | Active explosion-proof device for dust explosion | |
| CN206626229U (en) | A kind of unidirectional flame proof valve open in usual | |
| CN202040377U (en) | Anti-explosion isolating valve | |
| CN205208026U (en) | From locking -type outlet duct | |
| CN203036027U (en) | Two-way emergency stop valve | |
| CN203342246U (en) | Dry fire barrier for coal mine gas delivery pipeline | |
| CN208502823U (en) | A kind of tunnel ventilation device | |
| CN205937870U (en) | Big one -way air current of latus rectum is fast by solenoid valve | |
| CN106989192A (en) | A kind of unidirectional flame proof valve of air flow blowing formula | |
| CN206093091U (en) | Passive quick automatic stop valve of inductive kick ripples | |
| CN2523953Y (en) | Flying and water entering protector for steam turbine | |
| CN206637075U (en) | A kind of anti-jamming fire resisting damper of high-air-tightness | |
| CN107088332A (en) | A kind of explosion-proof explosion unit containing aluminum dust | |
| CN206626228U (en) | A kind of unidirectional flame proof valve of air flow blowing formula | |
| CN206496052U (en) | A kind of Household pipe gas leakage resistant valve | |
| CN207299533U (en) | A kind of guiding device of anti-backflow | |
| CN201059402Y (en) | Expansion cushioning safety device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: 224100 Jiangsu Yancheng City Dafeng Economic Development Zone South of pump valve industrial park Patentee after: JIANGSU DRAGON INDUSTRIAL EQUIPMENT Co.,Ltd. Address before: 224100 Jiangsu Yancheng City Economic Development Zone, south of pump valve industrial park. Patentee before: JIANGSU DRAGON INDUSTRIAL EQUIPMENT Co.,Ltd. |
|
| CP02 | Change in the address of a patent holder | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171110 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |