CN207814574U - A kind of dust back-fire relief bleeder - Google Patents
A kind of dust back-fire relief bleeder Download PDFInfo
- Publication number
- CN207814574U CN207814574U CN201721666977.2U CN201721666977U CN207814574U CN 207814574 U CN207814574 U CN 207814574U CN 201721666977 U CN201721666977 U CN 201721666977U CN 207814574 U CN207814574 U CN 207814574U
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- China
- Prior art keywords
- venting
- dust explosion
- dust
- import
- explosion chamber
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Abstract
The utility model discloses a kind of dust back-fire relief bleeders, belong to the nonflame pressure release technical field on pipeline, it is big to solve nonflame bleeder weight, pressure release fire extinguishing is slow and the problem of maintaining trouble, including venting of dust explosion piece and venting of dust explosion chamber, the section of the venting of dust explosion chamber is sector, it is provided with import on the side wall of the venting of dust explosion chamber sector, it is provided with outlet on the arc-shaped side wall of the venting of dust explosion chamber sector, the venting of dust explosion piece is fixedly connected with the import of venting of dust explosion chamber, the outlet of the venting of dust explosion chamber is provided with fire retardant device, the fire retardant device is made of filter mesh layer and dry powder layer, the arc-shaped side wall of the venting of dust explosion chamber sector is equipped with reinforcing rib, the dry powder layer is arranged on reinforcing rib, dust back-fire relief bleeder provided by the utility model is light-weight, fire extinguishing is fast, repair, cleaning and replacement component are simple and convenient.
Description
Technical field
The utility model is related to applied on pipeline nonflame pressure release technical field more particularly to a kind of dust back-fire relief release
Device.
Background technology
When dust explosion occurs for deduster or dust collector, in normal elongnated building, flame is freely to release
's.When equipment is installed on interior, the explosive flame and shock wave freely released can cause subsequent explosion, cause the damage of bigger
It loses.Nonflame bleeder is destroyed designed for protection staff and equipment from dust explosion.When dust explosion occurs, explosion production
Raw flame by device go out flame device by be off, the pressure wave for generation of exploding is discharged.Nonflame bleeder is mainly used
In industries such as grain, metallurgy, chemical industry, electric power, pharmacy, mechanical processings, it is particularly applicable in cyclone separator, deduster, dust and receives
On the connected pipeline of the equipment such as storage, filtering cartridge filter, Geldart-D particle, explosion-proof for powder is released, and powder can be effectively prevent
Massive losses caused by dirt subsequent explosion.
In the prior art, nonflame bleeder is built-in with multilayer flame retardant bed by its flanged joint on pipeline, and back-fire relief
Layer be mostly metal mesh, lead to entire nonflame bleeder heavier-weight, be mounted on official road on when, need the bolt using bigger come
Shear stress is born, and blow-off velocity is slower；Maintaining is difficult, and the flange being connected on pipeline is needed to dismantle a nonflame
Bleeder removes, and then carries out maintaining again, and in this way in assembly, the pipeline for taking a lot of time and being connected again matches
Conjunction can just be completed, how to solve the problems, such as that nonflame bleeder weight is big, pressure release fire extinguishing is slow and maintaining it is troublesome at
For the research direction of those skilled in the art.
Utility model content
Utility model is big for above-mentioned nonflame bleeder weight, pressure release fire extinguishing is slow and maintaining is troublesome asks
Topic, provides a kind of dust back-fire relief bleeder.
The utility model uses following technical scheme：
The section of a kind of dust back-fire relief bleeder, including venting of dust explosion piece and venting of dust explosion chamber, the venting of dust explosion chamber is sector, described to let out
It is provided with import on the side wall of blast chamber sector, outlet, the venting of dust explosion piece are provided on the arc-shaped side wall of the venting of dust explosion chamber sector
Be fixedly connected with the import of venting of dust explosion chamber, the outlet of the venting of dust explosion chamber is provided with fire retardant device, the fire retardant device by filter mesh layer and
Dry powder layer forms, and the arc-shaped side wall of the venting of dust explosion chamber sector is equipped with reinforcing rib, and the dry powder layer is arranged on reinforcing rib.
When dust explosion occurs for bearing device, pressure rise in equipment, shock wave and flame are transmitted by pipeline at this time
To the venting of dust explosion piece of dust back-fire relief bleeder entrance, since the pressure in pressure pipeline has been more than the bearing capacity of venting of dust explosion piece,
Venting of dust explosion piece ruptures, and shock wave and flame pass through the fire retardant device of arrival venting of dust explosion chamber after venting of dust explosion piece, resistance of the impact air-flow across device
The strainer of fiery device, manifold pressure decline rapidly, and when across filter mesh layer, strainer cools down rapidly flame, and since wall is imitated
It answers, is not transferred to the outside of nonflame bleeder, flame plastics package of dry powder layer when across filter mesh layer is burnt out by flame,
Dry powder is fallen out, and achievees the effect that quick extinguishing.
Further, at least two layers of the filter mesh layer, for enhancing wall effect.
Further, the dry powder layer is the dry powder that plastic foil is mingled with, and the dry powder layer is dispersed on reinforcing rib, is moulded
Material film is easy to be burnt out by flame and releases dry powder and play the role of fire extinguishing, and when dry powder layer is dispersed on reinforcing rib rather than complete
Covering, to venting of dust explosion chamber, there are enough pressure release through-holes.
Further, the entrance of the venting of dust explosion chamber is provided with import security flanged plate component, the import security flange
Board group part includes import security flanged plate lower plate and import security flanged plate upper plate, the import security flanged plate upper plate and setting
There is the side wall of the venting of dust explosion chamber of import to be equipped with groove, the venting of dust explosion piece setting is in the import security flanged plate upper plate and is provided with
Between the side wall of the venting of dust explosion chamber of import, it is provided between the import security flanged plate upper plate and venting of dust explosion piece and the recess
The sealing ring of conjunction；It is provided between the side wall and venting of dust explosion piece of the venting of dust explosion chamber for being provided with import close with the fit depressions
Seal, sealing ring are arranged in groove, can preferably play the role of fixed and seal.
Further, the sealing ring is in hexagonal, stability of the guarantee sealing ring in groove.
Further, exit flanged plate, the back-fire relief dress are provided on the arc-shaped side wall of the venting of dust explosion chamber sector
It sets and is fixedly connected on exit flanged plate, it is ensured that in pressure release, the arc-shaped side wall for stating venting of dust explosion chamber sector will not be powerful
Pressure wash out.
Further, the sidewall edge hinge of the import security flanged plate upper board edge and the venting of dust explosion chamber for being provided with import
Connection；When needing to the repair of dust back-fire relief bleeder, cleaning and replacing component, it is only necessary to dismantle import security flanged plate
Upper plate and be provided with import venting of dust explosion chamber side wall between bolt, the side wall for the venting of dust explosion chamber for being provided with import is existed by hinge
It is overturn on import security flanged plate upper plate, it can be to repairing, cleaning and replacing component inside dust back-fire relief bleeder.
Further, it is provided with explosion sensor on the arc-shaped side wall of the venting of dust explosion chamber sector, it is quick-fried when explosion occurs
The people that the raw shock wave of bankruptcy can make explosion sensor send out alarm and reminding people around avoid being injured.
When dust explosion occurs for bearing device, pressure rise in equipment, shock wave and flame are transmitted by pipeline at this time
To the venting of dust explosion piece of dust back-fire relief bleeder entrance, since the pressure in pressure pipeline has been more than the bearing capacity of venting of dust explosion piece,
Venting of dust explosion piece ruptures, and shock wave and flame pass through the filter of the fire retardant device of device by reaching venting of dust explosion chamber, impact air-flow after venting of dust explosion piece
Net, manifold pressure decline rapidly, and when across filter mesh layer, strainer cools down rapidly flame, and due to wall effect, i.e.,：Burning
Be not with explosion phenomenon it is intermolecular directly act on as a result, but under the excitation of the external energy, so that molecular link is destroyed, produce
The raw bioactive molecule for having respond when these bioactive molecules chemically react, is split into very active service life first
Very brief free radical.Chemical reaction is carried out by these free radicals.Free radical and the result of another molecular action are in addition to generating
Except object, moreover it is possible to generate new free radical.These new free radicals repeatedly react, and consume but also generate not only, constantly carry out down
It goes.It can thus be appreciated that the condition of inflammable mixture of gas self-burning (after combustion has been initiated, the not effects of outside resources) is：New production
Raw number of free radicals is equal to or more than the number of free radicals to disappear.With the reduction of fire retardant device strainer channel size, free radical with
Collision probability is reduced therewith between reaction molecular, and free radical and the collision probability in strainer channel increase instead, is thus promoted
Radical reaction lowers.When strainer channel size is reduced to a certain numerical value, this wall effect has resulted in flame cannot be after
The condition broadcast is resumed, flame is prevented from.It is not transferred to the outside of nonflame bleeder, flame is reinforced when across filter mesh layer
The plastics package of dry powder layer on muscle is burnt out by flame, and dry powder is fallen out, and achievees the effect that quick extinguishing.
In conclusion by adopting the above-described technical solution, the utility model has the beneficial effects that：
1, fire retardant device includes filter mesh layer and dry powder layer, and filter mesh layer provides wall effect, and dry powder layer reaches quick extinguishing
Effect, due to there is dry powder layer, so the number of plies of filter mesh layer can be reduced, to reduce the gross weight of dust back-fire relief bleeder
Amount.
2, the import security flanged plate upper board edge and be provided with import venting of dust explosion chamber sidewall edge hinge connection；
Need to dust back-fire relief bleeder repair, cleaning and replace component when, it is only necessary to dismantle import security flanged plate upper plate and
The bolt being provided between the side wall of the venting of dust explosion chamber of import pacifies the side wall for the venting of dust explosion chamber for being provided with import in import by hinge
It overturns, can be avoided to repairing, cleaning and replacing component inside dust back-fire relief bleeder on full flanged plate upper plate
Trouble when removing the trouble of cleaning completely and being installed again with connecting pipe.
3, the section of the venting of dust explosion chamber is sector, increases discharge area.
4, it is provided with explosion sensor on the arc-shaped side wall of the venting of dust explosion chamber sector, when explosion occurs, explosion generates
Shock wave people that explosion sensor can be made to send out alarm and reminding people around avoid being injured.
Description of the drawings
Fig. 1 is a kind of side view of dust back-fire relief bleeder of the utility model；
Fig. 2 is a kind of dust back-fire relief bleeder rearview of the utility model.
Reference numeral：1- import security flanged plate lower plates, 2- import security flanged plate upper plates, 3- venting of dust explosion pieces, 4- are provided with
The side wall of the venting of dust explosion chamber of import, 5- filter mesh layers, 6- dry powder layers, the arc-shaped side wall of 7- ventings of dust explosion chamber sector, 8- explosion sensors, 9-
Exit flanged plate, 10- hinges, 11- reinforcing ribs.
Specific implementation mode
To keep the above objects, features, and advantages of the utility model more obvious and easy to understand, below in conjunction with the accompanying drawings and have
Body embodiment is described in further detail the utility model.
Embodiment：
As shown in Figs. 1-2, a kind of dust back-fire relief bleeder, including venting of dust explosion piece 3 and venting of dust explosion chamber, the section of the venting of dust explosion chamber
For sector, it is provided with import on the side wall of the venting of dust explosion chamber sector, is provided with out on the arc-shaped side wall 7 of the venting of dust explosion chamber sector
Mouthful, the venting of dust explosion piece 3 is fixedly connected with the import of venting of dust explosion chamber, and the outlet of the venting of dust explosion chamber is provided with fire retardant device, the venting of dust explosion
The arc-shaped side wall 7 of chamber sector is equipped with reinforcing rib 11, and when pressure release, the arc-shaped side wall 7 for stating venting of dust explosion chamber sector will not be powerful
Pressure wash out.The fire retardant device is made of filter mesh layer 5 and dry powder layer 6, at least two layers of the filter mesh layer 5, the dry powder
Layer 6 is arranged on reinforcing rib 11；The dry powder layer 6 is the dry powder that plastic foil is mingled with, and the dry powder layer 6 is dispersed in reinforcing rib
On 11, plastic foil is easy to be burnt out by flame and releases dry powder and play the role of fire extinguishing, and when dry powder layer 6 is dispersed in reinforcing rib 11
Upper rather than all standing, to venting of dust explosion chamber there are enough pressure release through-holes, the entrance of the venting of dust explosion chamber is provided with import security method
Blue board group part, the import security flanged plate component include import security flanged plate lower plate 1 and import security flanged plate upper plate 2,
Import security flanged plate lower plate 1 is connected with pipe laying, the import security flanged plate upper plate 2 and the venting of dust explosion for being provided with import
The side wall 4 of chamber is equipped with groove, and the venting of dust explosion piece 3 is arranged in the import security flanged plate upper plate 2 and is provided with letting out for import
Between the side wall 4 of blast chamber, it is provided with and the fit depressions between the import security flanged plate upper plate 2 and venting of dust explosion piece 3
Sealing ring；The sealing with the fit depressions is provided between the side wall 4 and venting of dust explosion piece 3 of the venting of dust explosion chamber for being provided with import
Circle, sealing ring are arranged in groove, and the sealing ring is in hexagonal, stability of the guarantee sealing ring in groove.It can be preferably
Play the role of fixed and seals.It is provided with exit flanged plate 9 on the arc-shaped side wall 7 of the venting of dust explosion chamber sector, it is described
Fire retardant device is fixedly connected on exit flanged plate 9, is further ensured that in pressure release, and the arc-shaped side of venting of dust explosion chamber sector is stated
Wall 7 will not be washed out by powerful pressure.
Preferably, 4 edge of the side wall hinge at 2 edge of import security flanged plate upper plate and the venting of dust explosion chamber for being provided with import
Chain 10 connects；When needing to the repair of dust back-fire relief bleeder, cleaning and replacing component, it is only necessary to dismantle import security method
Blue plate upper plate 2 and be provided with import venting of dust explosion chamber side wall 4 between bolt, the side wall 4 for the venting of dust explosion chamber for being provided with import is led to
Hinge 10 is crossed to overturn on import security flanged plate upper plate 2, can to repair, clean inside dust back-fire relief bleeder with
And component is replaced, the side wall 4 for the venting of dust explosion chamber for being provided with import is directly mounted on by hinge 10 by import security after the completion of cleaning
On flanged plate upper plate 2, work when many import security flanged plate lower plates 1 are connected with pipe laying is eliminated.
Preferably, it is provided with explosion sensor 8 on the arc-shaped side wall 7 of the venting of dust explosion chamber sector, when explosion occurs,
The people that the shock wave that explosion generates can make explosion sensor 8 send out alarm and reminding people around avoid being injured.
The above, the only preferred embodiment of the utility model, are not intended to limit the utility model, the utility model
Scope of patent protection be subject to claims, it is equivalent made by every specification and accompanying drawing content with the utility model
Structure change similarly should be included in the scope of protection of the utility model.
Claims (8)
1. the section of a kind of dust back-fire relief bleeder, including venting of dust explosion piece (3) and venting of dust explosion chamber, the venting of dust explosion chamber is sector, described
It is provided with import on the side wall of venting of dust explosion chamber sector, outlet is provided on the arc-shaped side wall (7) of the venting of dust explosion chamber sector, it is described to let out
Quick-fried (3) are fixedly connected with the import of venting of dust explosion chamber, which is characterized in that the outlet of the venting of dust explosion chamber is provided with fire retardant device, described
Fire retardant device is made of filter mesh layer (5) and dry powder layer (6), and the arc-shaped side wall (7) of the venting of dust explosion chamber sector is equipped with reinforcing rib
(11), the dry powder layer (6) is arranged on reinforcing rib (11).
2. a kind of dust back-fire relief bleeder according to claim 1, it is characterised in that：The filter mesh layer (5) is at least
Two layers, the strainer is stainless (steel) wire.
3. a kind of dust back-fire relief bleeder according to claim 2, it is characterised in that：The dry powder layer (6) includes two
Layer plastic foil, dry powder is filled between plastic foil, and the dry powder layer (6) is dispersed on reinforcing rib (11).
4. a kind of dust back-fire relief bleeder according to claim 1, it is characterised in that：The entrance of the venting of dust explosion chamber is set
It is equipped with import security flanged plate component, the import security flanged plate component includes import security flanged plate lower plate (1) and import
It is set on the side wall (4) of safety flange plate upper plate (2), the import security flanged plate upper plate (2) and the venting of dust explosion chamber for being provided with import
It is fluted, side wall of venting of dust explosion piece (3) setting in the import security flanged plate upper plate (2) and the venting of dust explosion chamber for being provided with import
(4) between, the sealing with the fit depressions is provided between the import security flanged plate upper plate (2) and venting of dust explosion piece (3)
Circle；The sealing with the fit depressions is provided between the side wall (4) and venting of dust explosion piece (3) of the venting of dust explosion chamber for being provided with import
Circle.
5. a kind of dust back-fire relief bleeder according to claim 4, it is characterised in that：The sealing ring is in hexagonal.
6. a kind of dust back-fire relief bleeder according to claim 1, it is characterised in that：The circular arc of the venting of dust explosion chamber sector
Exit flanged plate (9) is provided on shape side wall (7), the fire retardant device is fixedly connected on exit flanged plate (9).
7. a kind of dust back-fire relief bleeder according to claim 1, it is characterised in that：On the import security flanged plate
Side wall (4) edge hinge (10) connection at plate (2) edge and the venting of dust explosion chamber for being provided with import.
8. a kind of dust back-fire relief bleeder according to claim 1, it is characterised in that：The circular arc of the venting of dust explosion chamber sector
Explosion sensor (8) is provided on shape side wall (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721666977.2U CN207814574U (en) | 2017-12-04 | 2017-12-04 | A kind of dust back-fire relief bleeder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721666977.2U CN207814574U (en) | 2017-12-04 | 2017-12-04 | A kind of dust back-fire relief bleeder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207814574U true CN207814574U (en) | 2018-09-04 |
Family
ID=63334921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721666977.2U Expired - Fee Related CN207814574U (en) | 2017-12-04 | 2017-12-04 | A kind of dust back-fire relief bleeder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207814574U (en) |
-
2017
- 2017-12-04 CN CN201721666977.2U patent/CN207814574U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180904 Termination date: 20211204 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |