CN207667829U - It is a kind of end electric field before and after subregion multipole match combined type high-efficiency dust remover - Google Patents
It is a kind of end electric field before and after subregion multipole match combined type high-efficiency dust remover Download PDFInfo
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- CN207667829U CN207667829U CN201720846052.XU CN201720846052U CN207667829U CN 207667829 U CN207667829 U CN 207667829U CN 201720846052 U CN201720846052 U CN 201720846052U CN 207667829 U CN207667829 U CN 207667829U
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Abstract
The utility model discloses subregion multipoles before and after a kind of last electric field to match combined type high-efficiency dust remover, and flue gas circulating direction is provided with gas inlet, shell and exhanst gas outlet, common electric field and last electric field are equipped in shell.Last electric field is divided into proparea and back zone, and outermost both sides pole plate is common anode plate, other are coarse filtration anode plate, and proparea is isolated using triangle hydraulic barrier and hydraulic barrier；Centre is using arc-shaped two-way hydraulic barrier and the two-way hydraulic barrier closing of umbellate form, and the back zone tail portion channels 2N+3 are using the unidirectional hydraulic barrier closing of umbellate form.The utility model by last electric field by carrying out front and back subregion, original 3 changes air flow direction is promoted to 5 times, compulsory circulation pole plate number is increased to 2 times by 1 time, sudden change of flow speed is increased to existing 5 times by original 3 times, 10um or more, 2.5 ~ 10um and 2.5 um particulate matters below are collected, the problems such as to overcome the absorption of high resistivity dust and reentrainment of dust in deduster.
Description
Technical field
The utility model is related to subregion multipoles before and after electrostatic dust collection equipment field more particularly to a kind of last electric field to match combined type
High-efficiency dust remover is varied multiple times, the multiple sudden change of flow speed of air-flow, realization by the shock of dust, air flow direction in last electric field air-flow
Last electric field is checked on.
Background technology
Dry electric precipitation device is one kind of electrostatic precipitator.Electrostatic precipitation is to make gas ionization using electrostatic field to make dirt
Grain electrification is adsorbed onto the collecting method on electrode.Dusty gas by being electrically isolated when high-voltage electrostatic field as cation and electronics,
Electronics, which marches on towards, encounters grit in anode process, grit is adsorbed onto positive electrode surface and is collected with after negative electricity in electronics junction belt.
Dry electrostatic cleaner currently on the market generally uses wide spacing horizontal type structure, exist mostly back corona phenomenon and
The problems such as larger reentrainment of dust, therefore a kind of high-efficiency electric dust collector based on variable flow field is disclosed and coulomb grid pole plate, structure are special
Point is to be provided with to be made of the front anode and front cathode parallel with airflow direction close to the position of gas inlet in shell
Front electric field is provided with the rear portion electric field of changeable air-flow travel path close to the position of exhanst gas outlet in shell, can solve
This problem, but this postposition electric field is using fair current unsteady flow form with 60 ° of angles of electric field airintake direction, high resistivity dust and
Particle dust collision efficiency is relatively low, and gas inertia moves, and postposition electric field terminal pressure is larger, leads to this postposition electric field
Treatment effeciency can not perform to optimum condition dust removing effects requirement.
Patent name is " a kind of multipole match combined type inversion high-efficiency electric dust catcher ", application No. is
" CN201610308856.4 " discloses a kind of multipole and matches combined type inversion high-efficiency electric dust catcher, is equipped with common electric field and end electricity
Former and later two electric fields of field, postposition electric field are last electric field, and odevity electric field is using closing or circulating form, and inside is using modified
A kind of multistage of grid pole plate matches combined type high-efficiency dust remover, and postposition electric field is using the adverse current with 120 ° of angles of electric field airintake direction
Unsteady flow form.There is also prodigious change spaces for this electric precipitator：First, from the point of view of air-flow flowing through channel, inversion need through
It crosses after shock is forced back into and is redistributed, electric field single channel is long, and second half court collection fine particle pressure is excessive, and structure has
It is to be modified；Secondly, all dust particles have only carried out twice dust suction and have collected process, needed in quantity under this electric field conditions
It improves；Again, which is collected on 2.5 ~ 10um and 10um two above levels, and 2.5um or less particles still do not have
Classification is handled.
Invention content
Subregion multipole matches the efficient electric precipitation of combined type inversion before and after the utility model provides the follow-on last electric field of one kind
Device carries out front and back subregion by last electric field, and it is sectorized after air flow direction, flow velocity is varied multiple times, improve dust collision frequency, prolong
Long residence time simultaneously absorbs repeatedly, the problems such as further overcoming the absorption of high resistivity dust and reentrainment of dust in deduster.
Following technical scheme may be used to realize in the technical issues of the utility model is solved：
It is a kind of end electric field before and after subregion multipole match combined type high-efficiency dust remover, including gas inlet, shell, common electric field and
Exhanst gas outlet, in housing forward end, exhanst gas outlet is arranged in housing rear end, and ash is equipped with below shell for the gas inlet setting
Bucket, the position in the shell close to gas inlet are provided with common electric field, set in the common electric field general electric field anode plate and
Common electric field cathode, it is parallel with the airflow direction of gas inlet；It is characterized in that：Close to the position of exhanst gas outlet in the shell
It is provided with last electric field, the end electric field is divided into last electric field proparea and last electric field back zone, and the outermost both sides pole plate of the end electric field is
Common anode plate, other are coarse filtration anode plate, are common electric field cathode between the two rows pole plate, the end electric field proparea channel
Number is that the electric field channel front end of odd number is isolated using triangle hydraulic barrier, and the channel between common anode plate and shell is forward and backward
End is isolated using hydraulic barrier；The end electric field proparea second channel and channel end second from the bottom are using arc-shaped two-way
Hydraulic barrier closing arrangement；The end channels electric field 2N+4 are using the two-way hydraulic barrier closing of umbellate form；The end electric field back zone
The tail portion channels 2N+3 are using the unidirectional hydraulic barrier closing of umbellate form；
Preferably, the coarse filtration anode plate is grid shutter, spaced and parallel arrangement, between 35 ~ 45mm of gap.
Preferably, the two-way hydraulic barrier of the umbellate form is made of hydraulic barrier, connecting plate and deflector.
Preferably, it is grid shutter that the last electric field back zone, which uses refined filtration anode plate, the refined filtration anode plate,
Between parallel arrangement, 20 ~ 28mm of gap.
Subregion multipole matches the efficient electric precipitation of combined type inversion before and after the utility model provides a kind of follow-on last electric field
Device, by the way that last electric field is carried out front and back subregion, original 3 changes air flow direction is promoted to 5 times, and compulsory circulation pole plate number is by 1
Secondary to increase to 2 times, sudden change of flow speed is increased to existing 5 times by original 3 times, forms maze-type structure, using common anode plate, slightly
Filter anode plate, refined filtration anode plate collect 10um or more, 2.5 ~ 10um and 2.5 um or less respectively（It is thin in thick）Of three levels
Grain object changes the original situation for collecting 10um or more and the particulate matter in the two kinds of sections 2.5um ~ 10um, and utilizes flow velocity
Variation and residence time are absorbed repeatedly because of rapping and airborne dust caused by falling ash, to overcome high resistivity dust in deduster
The problems such as absorption and reentrainment of dust.The sharpest edges of the utility model are exactly in the space basis of existing dry electrostatic cleaner
It is improved upgrading, by changing cathode, anode system, it is double to can be achieved with effect.
Description of the drawings
Fig. 1 is the internal structure schematic diagram of the utility model.
Fig. 2 is arc-shaped two-way hydraulic barrier schematic diagram.
Fig. 3 is the two-way hydraulic barrier schematic diagram of umbrella shape.
Fig. 4 is a kind of four electric field minimum discharge high-efficiency electrostatic dust remover schematic diagrames.
In figure, 101 gas inlets, 102 shells, 103 common electric fields, 104 general electric field anode plates, 105 common electric field cathodes,
106 last electric fields, 107 hydraulic barriers, 108 coarse filtration anode plates, 109 triangular form hydraulic barriers, 110 arc-shaped two-way hydraulic barriers,
After the two-way hydraulic barrier of 111 umbellate forms, the unidirectional hydraulic barrier of 112 umbellate forms, 113 exhanst gas outlets, 114 last electric field propareas, 115 last electric fields
Area, 201 common two electric fields, 202 two electric fields of adverse current.
Specific implementation mode
The utility model is described in further detail with reference to embodiment, but the embodiment of the utility model is not
It is limited to this.
It is the preferred embodiment of the utility model as shown in Figure 1, 2, 3, a kind of end electric field equity subregion multipole is inverse with combined type
Unsteady flow high-efficiency electric dust catcher, including gas inlet 101, shell 102, common electric field 103, last electric field 106 and exhanst gas outlet 113.
The setting of the gas inlet 101 is arranged in 102 rear end of shell, pacifies below shell 102 in 102 front end of shell, exhanst gas outlet 113
Equipped with ash bucket, the position of gas inlet 101 is provided with common electric field 103 in the shell 102.The common electric field
General electric field anode plate 104 and common electric field cathode 105 are set in 103, it is parallel with the airflow direction of gas inlet.
The position of exhanst gas outlet 113 is provided with last electric field 106 in shell 102, last electric field 106 is reciprocity subregion,
It is divided into last electric field proparea 114 and last electric field back zone 115.The end 106 outermost both sides of electric field（I.e. close to shell 102）Pole plate not
Using coarse filtration anode plate, with common anode plate, other using coarse filtration anode plate 108, the coarse filtration anode plate 108 is grid blinds
Window construction, spaced and parallel arrangement are common electric field cathode 105, last electric field proparea between two rows of pole plates between 35 ~ 45mm of gap
114 port numbers are that the electric field channel front end of odd number is isolated using triangle hydraulic barrier 109, common anode plate and shell 102 it
Between channel front and back ends be effectively isolated using hydraulic barrier 107, proparea second channel and channel end second from the bottom use
Arc-shaped two-way hydraulic barrier 110（As shown in Figure 2）Closing arrangement, 2N+4（N is natural number）Channel uses the two-way folding of umbellate form
Baffle 111 is flowed to close；It is closed using the unidirectional hydraulic barrier 112 of umbellate form in the last electric field back zone tail portion channels 2N+3；Common electric field into
When entering to last electric field 106, first passes through triangle hydraulic barrier 109 and hydraulic barrier 107 carries out water conservancy diversion, so that air-flow is led to even number logical
Road hits the two-way hydraulic barrier 110 of circular arc type or umbellate form bi-directional flaps baffle after the airflow direction elder generation fair current of even-numbered channels
111, form adverse current, with the airflow direction of common electric field on the contrary, and flowed out to both sides coarse filtration anode plate 108, into odd chanel,
The forward and backward area's connection of odd chanel, air-flow fair current enters back zone, by back zone hydraulic barrier, after carrying out adverse current again, passes through coarse filtration
Odd chanel flows into anode plate to the left and right, is flowed out finally by even-numbered channels.
The two-way hydraulic barrier of the umbellate form 111（As shown in Figure 3）By hydraulic barrier 116, connecting plate 117,118 groups of deflector
At.
Gain effect of the utility model in deduster project reconstruction and in creating is that front and back subregion helps to improve pole plate
With the contacting efficiency of exhaust gas dust；It carries out front and back subregion and is equal to more than once pressure adverse current, extended in existing space
Residence time is conducive to anode plate to dust soak time repeatedly, while pressure drop increases small, influences can be ignored；Structure
Front and back subregion, proparea fail the dust collected in time and can suitably be checked on by back zone, suitable two multistages of the structure after subregion
With last electric field, efficiency of dust collection is obviously amplified, and exit concentration optimum efficiency can reach 6mg/Nm3；In conjunction with common electric field, end electricity
Area is combined using coarse filtration anode plate or using coarse filtration anode plate and refined filtration anode plate before and after, carries out carse, medium and small three levels
It is collected, is more advantageous to last electric field and checks on purpose；Front and back subregion changes this structure, easily converts, conversion cost is low, especially
It is suitble to discharge project within existing three electric fields transformation project and A grades of area 20mg/Nm3 of country newly-built.
Further, the utility model can be improved to a kind of four electric field minimum discharge high-efficiency electrostatic dust removers, as shown in figure 4,
It is further added by common two electric field 201 and an adverse current electric field 202 on the basis of original common electric field 103 and last electric field 106,
Common two electric field 201 is located between common electric field 103 and last electric field 106, and the adverse current electric field 202 is located at last electric field 106
Between exhanst gas outlet 113, the internal structure of common two electric field 201 arranges, adverse current electric field identical as common electric field 103
202 internal structure arrangement is roughly the same with last electric field 106, equally divides adverse current electric field 202 for proparea 203 and back zone 204, institute
Unlike, adverse current electric field 202 will use asymmetrical subregion, proparea 203 to use refined filtration using coarse filtration anode plate 108, back zone 204
Anode plate 205.Refined filtration anode plate 205 is similarly grid shutter, and spaced and parallel arrangement, gap smaller is in the areas 20 ~ 28mm
Between.Medium grain size is collected in proparea 203, and particle dust and the medium grain size dust for escape of checking on are collected in back zone 204.
203 port number of inverse electric field proparea is that the electric field channel front end of odd number is kept off using triangular form hydraulic barrier 109 and baffling
Plate 107 counts inside from shell both sides, and proparea second channel end and back zone second channel front end are using arc-shaped two-way baffling gear
The closing arrangement of plate 110,2N+4（N is natural number）Channel is using the two-way hydraulic barrier of umbellate form 111；204 tail of adverse current electric field back zone
The portion channels 2N+3 are using the unidirectional hydraulic barrier of umbellate form 112.When flue gas enters adverse current electric field 202 by last electric field 106, first pass through
The triangle hydraulic barrier 109 and hydraulic barrier 107 of adverse current electric field 202 carry out water conservancy diversion, and air-flow is made to lead to even-numbered channels, and even number is logical
Hit arc-shaped two-way hydraulic barrier 110 and the two-way hydraulic barrier 111 of umbrella shape after the airflow direction elder generation fair current in road, formed adverse current with
The airflow direction of common electric field on the contrary, and inversely flowed out to both sides coarse filtration anode plate 108, into odd chanel, before odd chanel,
Back zone is connected to, and air-flow fair current enters back zone, by unidirectional 112 inversion of hydraulic barrier of umbrella shape, to the left by refined filtration anode plate 205
Right odd chanel flows into, and is flowed out to 113 direction of exhanst gas outlet finally by even-numbered channels.
The gain effect of this improved structure is：Subregion can ensure efficiency of dust collection before and after last electric field 106 and adverse current electric field 202
Reach 99.99% or more；Four pressure adverse currents of subregion and progress before and after last electric field 106 and adverse current electric field 202, in existing space
It is interior plus flow velocity bust, extend that the residence time is single electric field not subregion as many as several times；Last electric field 106 and adverse current electric field 202
Front and back partitioned organization, for the thinner engineering project of working condition dust particle, last electric field 106, which fails the dust collected in time, to be passed through
Adverse current electric field 202 is checked on, and electric field proparea fails the dust collected in time and can again be checked on by back zone, to optimize coarse filtration and
Refined filtration anode plate absorbs dust repeatedly by different level, ensure that efficiency of dust collection, in the present embodiment, powder that exhanst gas outlet 113 measures
Dust concentration can reach within 4mg/Nm3, can save the cost of a set of wet electric equipment completely；The present embodiment is simple in structure,
It improves and is easy on original base, easily convert, conversion cost is low.In power industry, no matter item is transformed to newly-built or four electric fields
Mesh requires to reach national minimum discharge requirement, and the new structure and improved structure have a high potential.
The above is only the utility model preferred embodiment, not appoints to the technical scope of the utility model
What is limited, therefore every to any trickle amendment, equivalent variations made by above example and is repaiied according to the technical essence of the invention
Decorations, still fall within the scope of protection of the utility model.
Claims (4)
1. subregion multipole matches combined type high-efficiency dust remover, including gas inlet, shell, common electric field and cigarette before and after a kind of end electric field
Gas exports, and in housing forward end, exhanst gas outlet is arranged in housing rear end, and ash is equipped with below shell for the gas inlet setting
Bucket, the position in the shell close to gas inlet are provided with common electric field, set in the common electric field general electric field anode plate and
Common electric field cathode, it is parallel with the airflow direction of gas inlet；It is characterized in that：Close to the position of exhanst gas outlet in the shell
It is provided with last electric field, the end electric field is divided into last electric field proparea and last electric field back zone, and the outermost both sides pole plate of the end electric field is
The middle plate of common anode plate, the end electric field is coarse filtration anode plate, between the adjacent two rows coarse filtration anode plate or coarse filtration
It is common electric field cathode between anode plate and common anode plate, end electric field proparea port number is the electric field channel front end of odd number
It is isolated using triangle hydraulic barrier, the channel front and back ends between common anode plate and shell are isolated using hydraulic barrier；
The end electric field proparea second channel and channel end second from the bottom are using arc-shaped two-way hydraulic barrier closing arrangement；The end
The channels electric field 2N+4 are using the two-way hydraulic barrier closing of umbellate form；The end electric field back zone tail portion channels 2N+3 use umbellate form list
It is closed to hydraulic barrier；N in the channels the 2N+4 and the channels 2N+3 is natural number.
2. subregion multipole matches combined type high-efficiency dust remover before and after a kind of last electric field according to claim 1, it is characterised in that：
The coarse filtration anode plate is grid shutter, spaced and parallel arrangement, between 35~45mm of gap.
3. subregion multipole matches combined type high-efficiency dust remover before and after a kind of last electric field according to claim 1, it is characterised in that：
The two-way hydraulic barrier of umbellate form is made of hydraulic barrier, connecting plate and deflector.
4. subregion multipole matches combined type high-efficiency dust remover before and after a kind of last electric field according to claim 1, it is characterised in that：
It is grid shutter, spaced and parallel arrangement, gap that the end electric field back zone, which uses refined filtration anode plate, the refined filtration anode plate,
Between 20~28mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720846052.XU CN207667829U (en) | 2017-07-13 | 2017-07-13 | It is a kind of end electric field before and after subregion multipole match combined type high-efficiency dust remover |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720846052.XU CN207667829U (en) | 2017-07-13 | 2017-07-13 | It is a kind of end electric field before and after subregion multipole match combined type high-efficiency dust remover |
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| Publication Number | Publication Date |
|---|---|
| CN207667829U true CN207667829U (en) | 2018-07-31 |
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| CN201720846052.XU Active CN207667829U (en) | 2017-07-13 | 2017-07-13 | It is a kind of end electric field before and after subregion multipole match combined type high-efficiency dust remover |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Multi-grading combined type efficient precipitator adopting front and back division of last electric field Effective date of registration: 20191217 Granted publication date: 20180731 Pledgee: Agricultural Bank of China, Limited by Share Ltd, Longyan, Xinluo branch Pledgor: Fujian Xinlong environmental Limited by Share Ltd Registration number: Y2019990000743 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |