CN209705347U - One kind is anti-to suppress the unidirectional flame proof valve of passive type - Google Patents
One kind is anti-to suppress the unidirectional flame proof valve of passive type Download PDFInfo
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- CN209705347U CN209705347U CN201920409255.1U CN201920409255U CN209705347U CN 209705347 U CN209705347 U CN 209705347U CN 201920409255 U CN201920409255 U CN 201920409255U CN 209705347 U CN209705347 U CN 209705347U
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- 230000007246 mechanism Effects 0.000 claims abstract description 10
- 238000007789 sealing Methods 0.000 claims description 9
- 239000010865 sewage Substances 0.000 claims description 9
- 210000003781 tooth socket Anatomy 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims 1
- 239000000428 dust Substances 0.000 abstract description 19
- 238000004880 explosion Methods 0.000 abstract description 17
- 238000004140 cleaning Methods 0.000 abstract description 2
- 238000009825 accumulation Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000034994 death Effects 0.000 description 1
- 231100000517 death Toxicity 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000013517 stratification Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
Resist the utility model discloses one kind of dust explosion protection technical field and suppresses the unidirectional flame proof valve of passive type, including valve body, body top, which is bolted, is equipped with valve deck, valve body left and right ends are separately installed with inlet tube and outlet, inlet tube left end is provided with inlet flange, outlet right end is provided with outlet(discharge) flange, body cavity is provided with rotary shaft, rotating shaft terminal extends on the outside of valve body and is equipped with self-locking mechanism, the flap to match with inlet tube right end is bolted in rotary shaft, the utility model keeps deduster and inlet duct completely isolated, prevent explosion sprawling from causing more serious loss, the working condition of flame proof valve can be simply judged according to the position of self-locking structure, intensity height improves the anti-knock properties of flame proof valve, it is not easy to accumulate dust in valve body, reduce the number and cost of cleaning flame proof valve.
Description
Technical field
The utility model relates to dust explosion protection technical fields, and specially one kind is anti-suppresses the unidirectional flame proof valve of passive type.
Background technique
Due to the attention of Environmental quality, factory in need, which must install dust-collecting equipment or deduster, prevents dust
It is directly released into air.Dust collect plant storage is all mostly inflammable and explosive substance, leaves security risk.China now
The case of existing dust explosion causes serious personal's injures and deaths, and most loss is the subsequent explosion due to caused by dust
Caused by.So the explosion-proof and preventing secondary explosion for deduster is extremely urgent.
The dust explosion isolation device used on the market now has a single function, can not be complete with inlet duct by flame after explosion
Full isolation, it is more likely that the fire or subsequent explosion, usage safety performance after causing explosion are poor；In addition to this explosion used every
From flap intensity it is low, will appear after blast impulse leakage, deformation the problems such as, need secondary replacement, the practicability is poor, is
This, it is proposed that one kind is anti-to suppress the unidirectional flame proof valve of passive type.
Utility model content
Resist the purpose of this utility model is to provide one kind and suppress the unidirectional flame proof valve of passive type, to solve above-mentioned background technique
The problem of middle proposition.
To achieve the above object, the utility model provides the following technical solutions: one kind is anti-to suppress the unidirectional flame proof valve of passive type,
Including valve body, body top, which is bolted, is equipped with valve deck, and valve body left and right ends are separately installed with inlet tube and outlet,
Inlet tube left end is provided with inlet flange, and outlet right end is provided with outlet(discharge) flange, and body cavity is provided with rotary shaft, rotary shaft
Both ends extend on the outside of valve body and are equipped with self-locking mechanism, are bolted in rotary shaft and match with inlet tube right end
Flap.
Preferably, valve body is in " U " structure, and valve body left end and inlet tube right end are respectively provided with the scarf that beveling direction is in 25 °,
Sewage draining exit is offered on the left of body base, and is provided with sealing-plug on sewage draining exit.
Preferably, flap is in " U " structure, and flap cross-sectional width is greater than the scarf width of inlet tube, and flap is close to import
The side outer wall of pipe scarf is provided with the protrusion in 90 °, and the intermediate position of protrusion is plane.
Preferably, inlet tube right end and flap junction are provided with sealing strip.
Preferably, self-locking mechanism be made of self-locking ring, self-locking arm, automatic adjustment plate, protection column, gag lever post, self-locking ring and
Rotary shaft is connected, and self-locking arm side is connected with self-locking ring, and the self-locking arm other side is in contact with automatic adjustment plate, gag lever post bolt
It is fixed on valve interior wall.
Preferably, in 90 ° of bendings, automatic adjustment plate a part is bolted on valve body automatic adjustment plate, another
The prominent valve body in part is simultaneously wedge shaped, and there are tooth sockets for the wider tail portion at automatic adjustment plate wedge shape.
Compared with prior art, the utility model has the beneficial effects that
1, the utility model is arranged at the inlet duct of deduster, when the emergency situations such as explosion, flame proof occur for deduster
Valve meeting quick closedown flap, keeps deduster and inlet duct completely isolated, prevents explosion sprawling from causing more serious loss, improves
The security level of plant area guarantees the safety of staff and equipment；
2, the utility model is additionally arranged self-locking mechanism, and except being resetted after non-determined dangerous releasing, otherwise flap will not be beaten
It opens, dust remover side pressure is less than the case where inlet tube lateral pressure opens flap after avoiding explosion, but after explosion in deduster
There is flame residual, if fire spreading can be made by opening flap at this time, causes irremediable loss, self-locking structure is arranged in flame proof
The outside of valve can simply judge the working condition of flame proof valve according to the position of self-locking structure；
3, the flap for this concaveconvex shape that the utility model uses does not need to increase intensity with reinforcing rib, light weight,
The small crushing for effectively reducing pipe-line system of cracking pressure saves production cost, reduces production process, and this sealing structure
Property is more preferable, and intensity height improves the anti-knock properties of flame proof valve, increases the use scope of flame proof valve, in addition to this, this structure
Flap is unlikely to deform, and increases the service life of flame proof valve；
4, the soft sealing structure that the utility model uses makes flame proof valve in locked sealing, the beveling of flap and inlet tube
Tight seal at mouthful, flame can not pass through, and increase the security performance of flame proof valve, flap is not directly contacted with inlet pipeline, is had
Soft gasket increases the service life of flap as buffering；
5, the U-shaped valve body for the inclined cutout that the utility model uses, is not easy to accumulate dust in valve body, reduces cleaning flame proof
The number and cost of valve.
Detailed description of the invention
FIG. 1 is a schematic structural view of the utility model；
Fig. 2 is the utility model outside drawing；
Fig. 3 is the A of the utility model self-locking mechanism to structural schematic diagram.
In figure: 1, inlet flange；2, inlet tube；3, rotary shaft；4, valve deck；5, valve body；6, gag lever post；7, outlet；8,
Outlet(discharge) flange；9, sealing strip；10, self-locking mechanism；11, self-locking arm；12, column is protected；13, self-locking ring；14, plate is automatically adjusted.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Please refer to Fig. 1-3, the utility model provides a kind of technical solution: one kind is anti-to suppress the unidirectional flame proof valve of passive type, wraps
Valve body 5 is included, is bolted at the top of valve body 5 and valve deck 4 is installed, round hanging ring is provided at the top of valve deck 4, is readily transported, valve
5 left and right ends of body are separately installed with inlet tube 2 and outlet 7, and 2 left end of inlet tube is provided with inlet flange 1,7 right end of outlet
It is provided with outlet(discharge) flange 8,5 inner cavity of valve body is provided with rotary shaft 3, and 3 both ends of rotary shaft extend to 5 outside of valve body and are equipped with self-locking
The flap to match with 2 right end of inlet tube is bolted in rotary shaft 3 in mechanism 10.
Wherein, valve body 5 is in " U " structure, and 5 left end of valve body and 2 right end of inlet tube are respectively provided with the beveling that beveling direction is in 25 °
Face, reduces the dust stratification area of 5 lower section of inlet tube 2 and valve body, and sewage draining exit is arranged, and the two be combined with each other, and accumulates flame proof valve not
The influence of ash, 5 bottom left of valve body offers sewage draining exit, and sealing-plug is provided on sewage draining exit, convenient for being removed by sewage draining exit
The dust of 5 intracavity bottom of valve body accumulation；
Flap is in " U " structure, and flap cross-sectional width is greater than the scarf width of inlet tube 2, and flap is chamfer close to inlet tube 2
The side outer wall in face is provided with the protrusion in 90 °, and the intermediate position of protrusion is plane, and flap uses the form of central protuberance, edge
The direction of edge towards the inlet tube 2 of inlet tube 2 be made a raised plane, this structure not only increases the anti-of flap
Pressure energy power, and be conducive to the sealing of flap Yu inlet tube 2, when there is the biggish dust operating condition of bursting strength, increase protrusion
Number makes flap in multiple concave-convex type；
2 right end of inlet tube and flap junction are provided with sealing strip 9, sealing strip 9 can be selected silica gel or polytetrafluoroethylene (PTFE) into
Row soft seal, this not only improves the leakproofness of flap Yu 2 junction of inlet tube, pass through flame can not, increases the peace of flame proof valve
Full performance, while it is not directly contacted with flap with inlet tube 2, there is soft gasket as buffering, increases the service life of flap；
Self-locking mechanism 10 is made of self-locking ring 13, self-locking arm 11, automatic adjustment plate 14, protection column 12, gag lever post 6, self-locking
Ring 13 is connected with rotary shaft 3, and 11 side of self-locking arm is connected with self-locking ring 13, and 11 other side of self-locking arm connects with automatic adjustment plate 14
Touching is in certain convex in contact site, and 11 color of self-locking arm is red, and the position of self-locking arm 11 is checked convenient for staff,
Gag lever post 6 is fixed by bolts to 5 inner wall of valve body, controls the opening angle of flap at 60~70 °；
Plate 14 is automatically adjusted in 90 ° of bendings, automatic adjustment 14 a part of plate is bolted on valve body 5, another portion
Point prominent valve body 5 is simultaneously wedge shaped, and there are tooth sockets for the wider tail portion at 14 wedge shape of automatic adjustment plate.
Working principle:
When deduster and other working equipments operate normally, the pressure at inlet tube 2 is greater than the pressure in flame proof valve body
Power, under the blowing with dust air stream, flap is gradually opened around rotary shaft 3, requires (valve body when opening angle reaches certain
5, which are equipped with gag lever post 6, limits opening angle, the opening angle of general flap and vertical direction in 60~70 °) dust air-flow passes through
Flame proof valve does not influence the normal work of other equipment, when equipment is out of service in factory, pushes flap to open without pressure,
Flap leans on self gravity and falls, and external self-locking arm 11 is driven to draw the intermediate position of the automatic adjustment plate 14 of wedge structure；
When the air-flow with dust is normal through flap, part dust accumulation is had into valve body 5, since valve body 5 is in
Scarf, dust are stacked into 5 bottom of valve body, remove with sewage draining exit is crossed；
When deduster generation explosion time, biggish other working equipments of the impact wave direction transmitting of pressure can be generated, can be made at this time
The pressure of dust remover side is much larger than the pressure of angular cut side, and the pressure of shock wave closes flap rapidly, while driving locked machine
Self-locking arm 11 in structure 10 can streak the widest position of automatic adjustment plate 14 of wedge structure, tightly be stuck in automatic adjustment 14 tail of plate
In the tooth socket in portion, completely cuts off the part of deduster part and normal work completely, explosion is limited in deduster.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (6)
1. one kind is anti-to suppress the unidirectional flame proof valve of passive type, it is characterised in that: solid by bolt at the top of valve body (5) including valve body (5)
Dingan County is equipped with valve deck (4), and valve body (5) left and right ends are separately installed with inlet tube (2) and outlet (7), and inlet tube (2) left end is set
It is equipped with inlet flange (1), outlet (7) right end is provided with outlet(discharge) flange (8), and valve body (5) inner cavity is provided with rotary shaft (3), rotation
Shaft (3) both ends extend on the outside of valve body (5) and are equipped with self-locking mechanism (10), be bolted in rotary shaft (3) with
The flap that inlet tube (2) right end matches.
2. one kind according to claim 1 is anti-to suppress the unidirectional flame proof valve of passive type, it is characterised in that: valve body (5) is tied in " U "
Structure, valve body (5) left end and inlet tube (2) right end are respectively provided with the scarf that beveling direction is in 25 °, and valve body (5) bottom left opens up
There is sewage draining exit, and is provided with sealing-plug on sewage draining exit.
3. one kind according to claim 1 is anti-to suppress the unidirectional flame proof valve of passive type, it is characterised in that: flap is in " U " structure,
Flap cross-sectional width is greater than the scarf width of inlet tube (2), and flap is provided with close to the side outer wall of inlet tube (2) scarf
In 90 ° of protrusion, and the intermediate position of protrusion is plane.
4. one kind according to claim 1 is anti-to suppress the unidirectional flame proof valve of passive type, it is characterised in that: inlet tube (2) right end
Flap junction is provided with sealing strip (9).
5. one kind according to claim 1 is anti-to suppress the unidirectional flame proof valve of passive type, it is characterised in that: self-locking mechanism (10) has
Self-locking ring (13), self-locking arm (11), automatic adjustment plate (14), protection column (12), gag lever post (6) composition, self-locking ring (13) and rotation
Shaft (3) is connected, and self-locking arm (11) side is connected with self-locking ring (13), self-locking arm (11) other side and automatic adjustment plate (14) phase
Contact, gag lever post (6) are fixed by bolts to valve body (5) inner wall.
6. one kind according to claim 5 is anti-to suppress the unidirectional flame proof valve of passive type, it is characterised in that: automatic adjustment plate (14)
It is bent in 90 °, automatic adjustment plate (14) a part is bolted on valve body (5), and another part prominent valve body (5) is simultaneously in
Wedge shape, at automatic adjustment plate (14) wedge shape there are tooth sockets for wider tail portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920409255.1U CN209705347U (en) | 2019-03-28 | 2019-03-28 | One kind is anti-to suppress the unidirectional flame proof valve of passive type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920409255.1U CN209705347U (en) | 2019-03-28 | 2019-03-28 | One kind is anti-to suppress the unidirectional flame proof valve of passive type |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209705347U true CN209705347U (en) | 2019-11-29 |
Family
ID=68645955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920409255.1U Active CN209705347U (en) | 2019-03-28 | 2019-03-28 | One kind is anti-to suppress the unidirectional flame proof valve of passive type |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209705347U (en) |
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2019
- 2019-03-28 CN CN201920409255.1U patent/CN209705347U/en active Active
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