CN205903747U - Low resistance dust removal defogging unit of whirl coupling dust removal defogging device - Google Patents
Low resistance dust removal defogging unit of whirl coupling dust removal defogging device Download PDFInfo
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- CN205903747U CN205903747U CN201620726110.0U CN201620726110U CN205903747U CN 205903747 U CN205903747 U CN 205903747U CN 201620726110 U CN201620726110 U CN 201620726110U CN 205903747 U CN205903747 U CN 205903747U
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- demisting
- module
- flue gas
- dedusting
- dust removal
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Abstract
The utility model discloses a low resistance dust removal defogging unit of whirl coupling dust removal defogging device, every dust removal defogging unit are at least including the cavity barrel and the centrifugal whirl matrix piece of two at least conventionality that supply the flue gas to pass through to reach two at least tubulars of fixing on cavity barrel defogging module in advance. The wet flue gas of saturation of smuggleing liquid drop and fine particle after the desulfurization secretly gets into from central bobbin base portion to less pressure loss is the cost, through the tubular in advance the defogging module effectively block and get rid of partly great liquid drop and smoke and dust granule in the flue gas. When the flue gas continues through the conventional centrifugal whirl matrix piece of second grade, take place to rotate fast, under the effect of centrifugal force to and because the liquid drop is different with inertia difference and rotation rate between the fine particle, gets rid of great liquid drop and particulate matter remaining in the flue gas, thereby reach the effect of high -efficient dust removal defogging. The device does not need extra installation space, and dust removal separation efficiency is high, and the resistance loss is lower.
Description
Technical field
This utility model is related to the dedusting demisting unit that a kind of composition lower resistance-eddy flow couples high-effective dust-removing demister,
Belong to the field of purification of flue gas.
Background technology
The carrier as haze is finalized in an atmosphere for sulfate and nitrate, current desulfurization method of limestone-gypsum tower
Saturation wet flue gas, the more insoluble Gypsum Fibrosum of secondary droplets and the limestone particle of outlet, and conventional demister outlet drop
Concentration is about 75mg/nm3, adds the flue dust not eliminated in flue gas, causes the dust concentration in desulfurizing tower exiting flue gas cannot reach
To at this stage with regard to ultra-clean Abgasgesetz for smoke content≤5mg/nm3 requirement.Wherein adopt the eddy flow of modularized design
Plate dedusting demister is because energy consumption is low, dedusting remove fog effect good, easy to loading and unloading the advantages of increasingly receive publicity, but existing market
On like product adopt pp material due to more, there is plant machinery low intensity, the shortcomings of blade is easily broken.Meanwhile, adopt
In the case of Multi-stage spiral, equipment crushing is larger, the equipment pressure drop of general spiral board dedusting demister be up to 400pa and with
On, and under general operating condition, the pressure drop of mechanical demister is general≤200pa, so causing air-introduced machine power consumption increases, unfavorable
In energy-conservation, after there is transformation, cause the not enough risk of desulfurization air inducing compressing head.
Utility model content
This utility model is directed to the deficiency that conventional high-performance spiral board dedusting demister strength of parts is low, crushing is big, provides one
Kind service life is longer, crushing is less, assembling is more convenient, can preferably realize satisfying containing a large amount of drops to waiting after desulfurization
Carry out the modular unit of depth dedusting demisting with wet flue gas.
φ 25x2 described in application documents refers to external diameter (diameter) 25mm, wall thickness 2mm；Pp pipe refers in architectural engineering
Plastic tube；Tubing between tubular type pre- demisting module is staggered in arrangement the tubing referring in different tubular types pre- demisting module according to flue gas side
To solid is parallel but not arranged crosswise on same vertical plane.
For achieving the above object, this utility model adopts following technical proposals:
A kind of lower resistance-eddy flow coupling high-effective dust-removing demisting being installed on above upper level spraying layer in desulfuration absorbing tower
Device, this device comprises multiple dedusting demisting unit, and each dedusting demisting unit comprises including the hollow cylinder passing through for flue gas
With at least two conventional centrifugal eddy flow plate module, also include the pre- demisting mould of at least two tubular types being fixed on hollow cylinder
Block, tubular type pre- demisting module is made up of tubing arranged in parallel, there is gap between tubing arranged in parallel, tubular type pre- demisting mould
Tubing between block is staggered in arrangement along flue gas direction, and the pre- demisting module of described tubular type, conventional centrifugal eddy flow plate module are along hollow
Cylinder smoke inlet sets gradually to exhanst gas outlet direction.
The operation principle of this technical scheme is: the saturation wet flue gas being entrained with drop and fine particle after desulfurization are from each dedusting
The hollow smoke inlet of demisting unit enters, by the demisting effect of tubular type pre- demisting module, with less crushing as cost,
Effectively stop and get rid of a part of larger drop and soot dust granule in flue gas.Through pre- demisting flue gas by the first order
During conventional centrifugal eddy flow plate module, occur quick rotate, under the influence of centrifugal force, by the larger drop of remaining in flue gas and
Particulate matter is thrown on the barrel of surrounding so as to the liquid layer outflow tube bottom of holding with barrel removes, simultaneously because drop with thin
Inertia difference between particle and rotary speed are different, it is possible to use liquid droplet capture fine particle.Afterwards, flue gas is normal through the second level again
Rule centrifugal rotational flow plate module, strengthens to the degree of rotation of flue gas, further the removal effect of strengthening demisting and fine droplet, from
And reach the effect of high-effective dust-removing demisting.
Preferably, hollow cylinder is cylindrical integrated molding, and inner wall smooth, is easy to drop and gathers underflow.Tubular type
Pre- demisting module integralization design, is allowed to reach the purpose of easy accessibility as miscellaneous part.
Preferably, tubular type pre- demisting module is layer 2-3, the transverse cutting of the tubing in the pre- demisting module of same tubular type away from
It is preferably 35-45mm, the tubing in different tubular types pre- demisting module is staggered in arrangement along flue gas direction, and its longitudinal intercept is preferably
30-35mm, so not only improves and realizes optimal invention effect, can reach saving purpose again.Can also install outside it
Have encirclement plate, this encirclement plate can but be not uniquely made up of pp material, described tubing can be φ 25x2 pp pipe.
Conventional centrifugal eddy flow plate module is primarily to facilitate the centrifugal rotational flow plate common in the art of dismounting, by one
Individual central cylinder, some guide vanes and outside surround plate composition, guide vane is fixedly connected in central cylinder, conventional from
Core type eddy flow plate module is fixedly connected on described hollow cylinder.
Preferably, with respect to two conventional centrifugal eddy flow plate module, in the nearly exhanst gas outlet position peace of hollow cylinder
Equipped with one-level neat stress even distribution device, carry out water conservancy diversion and racemization to by the flue gas that conventional centrifugal eddy flow plate module continues to rise.
Described neat stress even distribution device is made up of outside encirclement plate and flase floor, the orthogonal vertical distribution of described flase floor.
Preferably: the outside plate hight degree that surrounds of neat stress even distribution device is 35-80mm, and its cross section is transversely, longitudinally
Divided equally by flase floor respectively, to ensure the best results of neat stress even distribution device water conservancy diversion racemization.Further, described neat stress is uniform
The outside plate and flase floor of surrounding of device is the pp material of thickness 3mm, and its cross section is transversely, longitudinally respectively by 9 pieces of flase floors.
Tubular type pre- demisting module, conventional centrifugal eddy flow plate module and neat stress even distribution device can pass through bolt, card
The usual manners such as groove, Plastic Welding are fixed on hollow cylinder.
Brief description
Fig. 1 is embodiment 1 structural representation；
Fig. 2 is the perspective view of conventional centrifugal spiral board；
Fig. 3 is two-layer pre- demister overlooking the structure diagram；
Fig. 4 is the structural representation of embodiment 2；
Fig. 5 is neat stress even distribution device front view in embodiment 2；
Fig. 6 is the top view of neat stress even distribution device in embodiment 2；
Label declaration: 1, hollow cylinder, 2, conventional centrifugal eddy flow plate module, 3, tubular type pre- demisting module, 4, central tube
Body, 5, surround plate outside conventional spiral board dedusting demister, 6, guide vane, 7, card key, 8, pp pipe, 9, neat stress all arranges
Put, 10, flase floor.
Specific embodiment
Below embodiment of the present utility model is elaborated, the present embodiment is carried out under premised on the technical program
Implement, give detailed embodiment and specific operating process, but protection domain of the present utility model be not limited to following
Embodiment.
Embodiment 1
As shown in figure 1, the dedusting demister that dedusting demisting unit forms is coupled by several lower resistance-eddy flow, install
Above upper level spraying layer in the desulfuration absorbing tower, each dedusting demisting unit comprises cylindrical, hollow cylinder 1, a two-stage
Conventional centrifugal eddy flow plate module 2 and two-stage tubular type pre- demisting module 3, hollow cylinder 1 is cylindrical and adopts integrated molding,
Smoke inlet along hollow cylinder is disposed with two-stage tubular type pre- demisting module 3 and two-stage conventional centrifugal spiral board to outlet
Module 2.Conventional centrifugal eddy flow plate module 2 is bolted on hollow cylinder 1.The tubing of tubular type pre- demisting module 3 is
The pp pipe of φ 25x2, tubing is fixed on the outside of pp material and surrounds on plate, and the outside plate that surrounds is bolted to connection in cylinder
On shape hollow cylinder 1, away from for 35mm, longitudinal intercept of the pre- demisting module 3 of upper and lower two tubular types is 35mm for the transverse cutting of tubing, on
Tubing in the pre- demisting module 3 of lower two-stage tubular type is staggered in arrangement along flue gas direction.The water conservancy diversion leaf of every grade of conventional centrifugal spiral board
Piece 6 is 18, and the elevation angle is 35 °, and guide vane 6 is fixed in central cylinder 4 by draw-in groove, and the outside plate that surrounds is pp material, and
By bolt, the outside plate that surrounds is fixed on hollow cylinder 1.
After the desulfurization containing a large amount of drops, saturation wet flue gas from bottom to top, first pass through two-stage tubular type pre- demisting module 3,
During tubular type pre- demisting module 3, the drop of the larger particles carrying in flue gas and flue dust are removed, flue gas simultaneously
In the flow-disturbing effect by tubular type pre- demisting module 3 of small drop, be partly agglomerated into larger drop, by the pre- demisting of tubular type
The flue gas of module 3, continue up by conventional centrifugal eddy flow plate module 2, in the process by conventional centrifugal eddy flow plate module 2
In, in collision process in guide vane 6 gap, reunite again becomes larger drop, using flue gas and cigarette to tiny drop
The drop carrying in gas, the separation inertia of flue dust are different, and the drop of reunion is thrown to hollow cylinder 1 with the dust granules in flue gas
The liquid film of inwall flowing on, realize seizure to drop and flue dust.Afterwards, flue gas is through second level conventional centrifugal spiral board
Module, strengthens to the degree of rotation of flue gas, further enhances dedusting and removes fog effect.
This utility model embodiment 1 have the beneficial effect that 1, dedusting remove fog effect good.Under normal running (operation) conditions, can make to take off
Sulfur tower outlet droplet content≤10mg/nm3, entrance flue dust total concentration (Gypsum Fibrosum containing secondary droplets and limestone particle)≤
During 30mg/nm3, within outlet dust concentration can be reduced to 5mg/nm3, meet minimum discharge at this stage and require.2nd, this device is normal
Rule centrifugal cyclone plate module 2 guide vane 6 is difficult to be worn, and service life is long.3rd, because the rational structure of pre- demister is arranged,
Its local crushing is low, can effectively reduce flue gas when conventional centrifugal eddy flow plate module 2, flue gas direction changes and produces
Raw pressure drop, thus reducing the crushing of spiral board dedusting demister, the resistance≤230pa of this plant running, is removed with conventional mechanical
Day with fog pressure drop is more consistent, causes the not enough risk of desulfurization air inducing compressing head, ratio conventional centrifugal spiral board after there is not transformation
Dedusting demister energy consumption is little.4th, adopt pre- dedusting demisting module to replace one layer of conventional spiral board dedusting demisting module, ensureing to remove
On the premise of the effect of dirt demisting, alleviate the mill to conventional centrifugal eddy flow plate module blade for the bulky grain thing carrying in flue gas
Damage, destroy, improve the stability of dedusting demister longtime running, improve the service life of spiral board.5th, investment cost low,
Risk is blocked in good operation stability, no fouling, saturation wet flue gas after realizing to desulfurization under relatively low investment with operating cost
Depth dedusting demisting, this utility model can replace technique and the conventional centrifugal spiral board of conventional " demister+wet electrostatic "
Dedusting demister.6th, no extra mounting space requires, and is directly installed after can removing demister.
Embodiment 2
As shown in figure 4, this lower resistance-eddy flow coupling high-effective dust-removing demister comprises multiple dedusting demisting unit, each
Unit, on embodiment 1 architecture basics, has installed one-level neat stress even distribution device 9 additional.The height of neat stress even distribution device 9 is
50mm, cross section is transversely, longitudinally respectively by the flase floor 10 of the thick pp material of 9 pieces of 3mm respectively.
Compared to embodiment 1, its advantage also resides in embodiment 2: on the one hand, has installed neat stress even distribution device additional permissible
Avoid the swirling eddy of outflow tube and adjacent cylinder swirling eddy out to occur multiply whirlpool to cross friction phenomenon, lead to cigarette
" in-fighting " of gas itself increases, and so that flue gas resistance is increased.And using the vertical flase floor of omnidirectional distribution at cartridge outlet, then may be used
To swirling eddy, there is good racemization, and guide air-flow vertically to move to tower top.On the other hand, during racemization,
There is certain angle collision and guide functions with vertical blade in the swirling eddy flow direction just come up from bottom, thus can be to flue gas
Middle residual drop or fine particle do further inertia removal effect.
Although embodiment of the present utility model is disclosed as above, it is not restricted to institute in description and embodiments
Row use, and it can be applied to various suitable fields of the present utility model completely, for those skilled in the art, can
It is easily achieved other modification, therefore under the general concept being limited without departing substantially from claim and equivalency range, this practicality
New be not limited to specific details and shown here as with description legend.
Claims (9)
1. a kind of lower resistance-eddy flow couples the dedusting demisting unit of dedusting demister, including the hollow cylinder passing through for flue gas
With at least two conventional centrifugal eddy flow plate module it is characterised in that: also include at least two and be fixed on the pipe on hollow cylinder
Formula pre- demisting module, the pre- demisting module of described tubular type is made up of tubing arranged in parallel, deposits between described tubing arranged in parallel
Tubing between gap, described tubular type pre- demisting module is staggered in arrangement along flue gas direction, the pre- demisting module of described tubular type, often
Rule centrifugal rotational flow plate module sets gradually along hollow cylinder smoke inlet to exhanst gas outlet direction.
2. dedusting demisting unit as claimed in claim 1 it is characterised in that: described tubular type pre- demisting module is integrated to be set
Put.
3. dedusting demisting unit as claimed in claim 1 it is characterised in that: described tubular type pre- demisting module is 2-3, institute
The tubing stated is the pp pipe of φ 25x2.
4. the dedusting demisting unit as described in claim 1 or 2 or 3 it is characterised in that: described pre- demisting module also includes outer
Portion surrounds plate, and described tubing is fixed on outside encirclement on plate.
5. dedusting demisting unit as claimed in claim 4 it is characterised in that: the described outside plate that surrounds is pp material, described
Away from for 35-45mm, longitudinal intercept of the pre- demisting module of different tubular type is 30- to tubing transverse cutting in the pre- demisting module of same tubular type
35mm.
6. dedusting demisting unit as claimed in claim 1 it is characterised in that: be further fixed on one-level pair on described hollow cylinder
Flue gas carries out the neat stress even distribution device of water conservancy diversion and racemization, and described neat stress even distribution device is with respect to conventional centrifugal eddy flow template die
Block is closer to the exhanst gas outlet of hollow cylinder.
7. dedusting demisting unit as claimed in claim 6 it is characterised in that: described neat stress even distribution device is surrounded by outside
Plate and flase floor composition, described flase floor is fixed on outside encirclement plate, and the described outside height surrounding plate is 35-80mm, institute
The flase floor stated is orthogonal vertical distribution.
8. dedusting demisting unit as claimed in claim 6 it is characterised in that: the cross section edge of described neat stress even distribution device
Laterally, longitudinally divided equally by flase floor respectively.
9. dedusting demisting unit as claimed in claim 6 it is characterised in that: the outside encirclement of described neat stress even distribution device
Plate, flase floor are the pp material of thickness 3mm, and its cross section transversely, is longitudinally divided equally by 9 pieces of flase floors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620726110.0U CN205903747U (en) | 2016-07-06 | 2016-07-06 | Low resistance dust removal defogging unit of whirl coupling dust removal defogging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620726110.0U CN205903747U (en) | 2016-07-06 | 2016-07-06 | Low resistance dust removal defogging unit of whirl coupling dust removal defogging device |
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| Publication Number | Publication Date |
|---|---|
| CN205903747U true CN205903747U (en) | 2017-01-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620726110.0U Active CN205903747U (en) | 2016-07-06 | 2016-07-06 | Low resistance dust removal defogging unit of whirl coupling dust removal defogging device |
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| CN (1) | CN205903747U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106178775A (en) * | 2016-07-06 | 2016-12-07 | 华电电力科学研究院 | The dedusting demisting unit of lower resistance eddy flow coupling dedusting demister and method |
| CN107470009A (en) * | 2017-09-11 | 2017-12-15 | 西安西热锅炉环保工程有限公司 | The frequency conversion rotation coal dust depth separation equipartition device and method of a kind of medium-speed pulverizer |
-
2016
- 2016-07-06 CN CN201620726110.0U patent/CN205903747U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106178775A (en) * | 2016-07-06 | 2016-12-07 | 华电电力科学研究院 | The dedusting demisting unit of lower resistance eddy flow coupling dedusting demister and method |
| CN107470009A (en) * | 2017-09-11 | 2017-12-15 | 西安西热锅炉环保工程有限公司 | The frequency conversion rotation coal dust depth separation equipartition device and method of a kind of medium-speed pulverizer |
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