CN104437870B - Overhead type rectangular wet electric precipitator - Google Patents
Overhead type rectangular wet electric precipitator Download PDFInfo
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- CN104437870B CN104437870B CN201410838082.7A CN201410838082A CN104437870B CN 104437870 B CN104437870 B CN 104437870B CN 201410838082 A CN201410838082 A CN 201410838082A CN 104437870 B CN104437870 B CN 104437870B
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- dust precipitator
- electrical dust
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Abstract
The invention provides an overhead type rectangular wet electric precipitator. The main body section of the electric precipitator is of a rectangular cylindrical structure and comprises a spray washing system, an anode module, a cathode module, a spray humidification system and a uniform distribution device; the electric precipitator is also provided with a shell self-supporting structure which comprises an inner column, an outer column, a main truss, an auxiliary truss and an annular truss; the inner column provided with the main truss is adhered to the outer wall of an absorption tower, and the top end of the main truss is used for supporting the wet electric precipitator; the main truss and the auxiliary truss are spaced from each other and are connected mutually to transfer load; the top end of the outer column provided with the auxiliary truss is used for supporting the wet electric precipitator; the annular truss is attached to the outer wall of the absorption tower; the inner column is arranged on the annular truss. Uniform partition in the precipitator can be realized, the cathode system and the anode system are produced in a modularized manner; the self-supporting structure does not need to occupy land and has no influence on the mounting and the overhauling of the original absorption tower; the effective dust collection area is increased, and the dust removal efficiency is improved.
Description
Technical field
The present invention relates to flue-gas dust removal and purification field, espespecially a kind of overhead type rectangle wet electrical dust precipitator.
Background technology
With the continuous improvement to coal-fired boiler tail gas dust emission standard for the country, dust emission requires to be greatly improved
To 10mg/nm3Even 5mg/nm3.And so carrying in wet-method desulfurized fume3Aerosol and " gypsum rain " particulate matter also become
For new pollution sources it is seen that the demand of ultra-clean dedusting technology is extremely urgent.
Common dry electric precipitation device, electric-bag complex dust collector and sack cleaner as front end Dust Control Technology, no
Method is effectively ensured the ultra-clean discharge of exhaust gas dust after desulfurizer.And wet electrical dust precipitator is super as terminal Dust Control Technology
The strong guarantee of net discharge.
Traditional overhead type wet electrical dust precipitator, is one kind of relatively often application in wet electrical dust precipitator, and mostly is circular wet
Formula electric cleaner.The expanding wet electrical dust precipitator of circle in actual design, due to its irregular profile, is carrying out printed line formula
Arrange timing, internal zone dividing is uneven, be usually present different area phenomenon, interregional dust collector pole area difference, up to 25%；Subregion is not
Uniformly, negative and positive electrode systems cannot realize high-volume modularized design so that during equipment making, encountering more difficulty,
And it is many to make die form, commaterial, plurality of specifications, complex management；
During designing and producing, anode and cathode material, specifications and models species is various, and between different model, difference is less, peace
During dress, misloading phenomenon easily occurs, after setup error, dismounting and reinstalling wastes time and energy；
Meanwhile, overhead type circle wet electrical dust precipitator supporting construction is complicated, generally adopts the outer steel bracket form of tower, the outer steel of tower
Support is wrapped up to original absorption tower, and floor space is larger；And steel bracket interlaced arrangement, have impact on original absorption tower
Pipeline is arranged；And further desulphurization system body, auxiliary device, conduit running, installation, maintenance, debugging, maintenance etc. are had relatively
Big impact.
To sum up, how to optimize the anode and cathode arrangement of overhead type wet electrical dust precipitator, reduce internals module, realize
Modularized production；And realize uniform segmentation in electric field it is ensured that wet electrical dust precipitator efficient stable runs it is ensured that wet electrical dust precipitator
Dust removing effects；Realization facilitates installation and maintenance to become wet-esp field simultaneously needs key problems-solving.
Content of the invention
It is an object of the invention to provide a kind of overhead type rectangle wet electrical dust precipitator, it is capable of deduster inner homogeneous and divides
Area, anode and cathode system modular produces, and is easily installed；Self supporting structure, need not take up an area, and original absorption tower is installed, overhauls no
Impact；Increase effective dust-collecting area, improve efficiency of dust collection.
The technical scheme that the present invention provides is as follows:
A kind of overhead type rectangle wet electrical dust precipitator includes: the closing in oared segrne pii that sets gradually from top to bottom, rectangle
Wet electrical dust precipitator main paragraph, circumference section, and the housing self supporting structure being arranged on described wet electrical dust precipitator hull outside；
Wherein, described circumference section upper end is rectangular opening, and lower end is circular port, for the described wet-esp of connection top
Device main paragraph and the absorption tower of lower section；
The housing of described wet electrical dust precipitator main paragraph is rectangular drum like housing, is internally provided with spray irrigation system, sun
Pole module, cathode module, spray humidification system, even distribution device；Described spray irrigation system is located at described anode module and described
The top of cathode module, described spray humidification system is located at the lower section of described anode module and described cathode module, described uniform
Device located at the lower section of described spray humidification system, interlock arranged for interval by described anode module and described cathode module；Wherein, institute
State the first combined bay that anode module includes anode arranged plate, water guider and connects and suspend in midair described anode arranged plate, described negative electrode
Module includes cathode line and connects and suspend in midair the second combined bay of described cathode line；Described even distribution device includes deflector, uniform
Plate and block ring, described deflector is arranged at described circumference section, and described uniform board and described block ring are arranged in described wet
The bottom of formula electric cleaner main paragraph；
Described closing in oared segrne pii is to the tapered loudspeaker cylinder in top from bottom, and the outside of described closing in oared segrne pii
It is provided with top incubator；
Described housing self supporting structure include multiple columnae medialises, multiple mixed lateral column, multiple main couple, multiple auxiliary girder,
Annular truss；Described columnae medialis is attached on the outer wall on absorption tower, and the top of described columnae medialis extend to described circumference section with
The link position on absorption tower simultaneously holds wet electrical dust precipitator, contacts to earth in the bottom of described columnae medialis, and each described main couple is arranged on
On one described columnae medialis；With described auxiliary girder interval setting and the two is connected with each other transmission load to described main couple；Every
One described mixed lateral column of the correspondingly connected setting in outer end of individual described auxiliary girder, and the inner of each described auxiliary girder and suction
The outer wall receiving tower connects, and does not contact to earth in the bottom of described mixed lateral column, and top extends upwardly at wet electrical dust precipitator and holds wet
Formula electric cleaner；Described annular truss is attached at the outer wall on absorption tower, and multiple described columnae medialises are arranged on described annular truss.
Preferably, described circumference section be made up of triangular plate and arc side set square, the base of described triangular plate with described
Rectangle wet electrical dust precipitator main paragraph connects, and described arc is connected with absorption tower in the arc of set square；
Described circumference section is α with the angle of absorption tower connection interface, 40 ° < α < 60 °.
Preferably, reinforcement, described wallboard and level that described closing in oared segrne pii includes wallboard and is located on this wallboard
The angle in face is β, 30 ° < β < 60 °；
Described wallboard is ladder type board.
Preferably, described spray irrigation system includes spraying tube layer and first jet, described spray irrigation system is located at institute
State above cathode module, and be located in described closing in oared segrne pii；Described first jet adopts solid atomizer, realizes spray
Region uniform fold, realizes the flushing of entirely wet electric system；
Preferably, described spray humidification system includes spraying rinses tube layer and second nozzle, described spray humidification system sets
Between described anode module and described even distribution device, described second nozzle adopts solid-cone or hollow cone atomizer, covers
Whole spray region, realizes flue gas and is uniformly humidified.
Preferably, described anode module is multiple, and the dust-collecting area of multiple described anode module is equal；Described negative electrode mould
Block is multiple, and the cathode line number summation of multiple described cathode module is equal；
First combined bay of described anode module includes clamping plate, connecting plate, and what described water guider included being interconnected leads
Tank, collect tank and drainpipe；Second combined bay of described cathode module includes anvil beam, suspention beam, suspension rod, mast, cross bar；
Described cathode module vertical or horizontal array arrangement, spacing is between 50～200mm；Described anode module and described cathode module
Heteropole away from identical, spacing is between 150～220mm；
Anvil beam in described cathode module, suspention beam are with bolts, and anvil beam adopts 2205 two-phase stainless Steel materials；Outstanding
Hanging beam adopts carbon steel, and surface is provided with glass flake layer；
Described suspension rod, mast, cross bar are all using 2205 two-phase stainless Steel materials, and connected mode each other is bolt
Connect；
Described anode module middle-jiao yang, function of the spleen and stomach pole plate, clamping plate, the material of connecting plate are 2205 two-phase stainless Steel materials.
Preferably, the inner surface of described circumference section is provided with glass flake anticorrosive coat, outer surface is provided with protection by paints and lacquers layer；
Preferably, the inner surface of the housing of described wet electrical dust precipitator main paragraph is provided with glass flake anticorrosive coat, outer surface
It is provided with protection by paints and lacquers layer；
Preferably, the inner surface of the wallboard of described closing in oared segrne pii is provided with glass flake anticorrosive coat, outer surface is provided with painting
Paint protective layer.
Preferably, multiple described main couples are uniformly distributed around absorption tower, multiple described auxiliary girders are also around absorption tower
It is uniformly distributed.
Preferably, described deflector is rectangular flat, and save tilted arrangement in described circumference, angle of inclination is γ, 40 °
60 ° of ＜ γ ＜, and the material of described deflector is ppr；
Described uniform board is porous plate, and between 70%～90%, material is ppr to percent opening；
Described block ring is straight-flanked ring, and, between 150mm～250mm, material is for 2205 two-phases not for the hem width of this straight-flanked ring
Rust steel.
Preferably, described top incubator is rectangle or circular configuration, and the number of described top incubator is multiple, and
It is arranged symmetrically.
Preferably, the spray tube layer of described spray irrigation system, carried out according to multiple electric field subregions of wet electrical dust precipitator
Subregion is arranged, and the spray tube layer of each electric field subregion is arranged in same plane, and material is pp；
Preferably, the top that tube layer is arranged in described even distribution device is rinsed in described spraying, material is 2205 two phase stainless steels.
The overhead type rectangle wet electrical dust precipitator being provided by the present invention, can bring following at least one beneficial effect:
1. it is capable of modularized production.The expanding wet electrical dust precipitator of circle in the prior art, because it is shaped as
Circle, when carrying out printed line formula matched design, the negative and positive electrode systems in internal electric field area need round-shaped to carry out with aforesaid
Join, thus define that the slab anode structure in whole electric field region cannot preferably be divided into polylith identical module, thus
Large batch of modularized design cannot be realized so that during equipment making, encountering more difficulty, the die form of making
Many, specification is many, complex management.And the rectangle wet electrical dust precipitator of the present invention can fully achieve modularized design, negative and positive polar system
System module unification, mould is unified, and all same such as each module part, material, perforate makes simple, convenient management.
2. increase effective dust-collecting area.Compared with traditional circular wet electrical dust precipitator, the overhead type rectangle of the present invention is wet
Formula electric cleaner, under the conditions of identical flue gas flow rate, makes effective dust-collecting area of pole plate increase more than 10%, improves further
Efficiency of dust collection.
3. pair electric field region carries out uniform segmentation, convenient control.The overhead type rectangle wet electrical dust precipitator of the present invention, internal electricity
Uniformly, each subregion anode module quantity is identical, has gathering dust of identical or essentially identical (difference being within 5%) for dividing field zones
Pole-face amasss.Each subregion cathode module quantity is identical, has the negative electrode line number of identical or essentially identical (difference is within 5%)
Mesh, electric-field intensity is identical, and secondary voltage, secondary current intensity are identical；And anode and cathode module parallel interlaced arrangement, each subregion
Electric field entrance section identical it is ensured that flue gas uniformly enters each subregion it is ensured that the removal effect of exhaust gas dust.
Each electric field region can achieve zonal control, the setting of power supply and flooding nozzle all can zonal control, it is more convenient to use.
4th, the housing self-supporting design of wet electrical dust precipitator, structure is simple.The rectangle wet electrical dust precipitator of the present invention adopts
New self-supporting mode.Supporting construction includes multiple main couples, multiple auxiliary girder and an annular truss, plurality of master
The columnae medialis (steel column) that truss is attached on the outer wall of absorption tower lands；The outer end of multiple auxiliary girders is attached to mixed lateral column (steel column)
On, the inner tower wall with absorption tower attaches, and because mixed lateral column does not land, and multiple auxiliary girder does not all land.Rigid annular shaped purlin
The load conversion of steel column is become the internal force of truss by frame, and the load of rectangle wet electrical dust precipitator is equivalent to circle, designs absorption tower
During steel bracket mechanism, rectangle wet electrical dust precipitator can be equivalent to circular wet electrical dust precipitator；Pass through appropriate design, steel simultaneously
Support has enough structural rigidities in itself, is only to increase a vertical load for absorption tower.Multiple main couples are around absorption
Tower is uniformly distributed, and multiple auxiliary girders are uniformly distributed also around absorption tower.This body weight of rectangle wet electrical dust precipitator need not be straight
Connect and be transferred to lower absorbent tower, but realized by a kind of new supporting way, by increasing vertical adding in absorption tower tower wall
Strong muscle, realizes absorbing the support of top of tower wet electrical dust precipitator.This supporting way is considered as conventional suction tower is vertically strengthened
The partial enlargement of muscle, need not increase floor space, simply the extension on direction in space, change conventional tower outer support to absorption
The staggered parcel form of tower；No any to desulphurization system body, auxiliary device, conduit running, installation, maintenance, debugging, maintenance etc.
Impact.
Brief description
Below by the way of clearly understandable, preferred embodiment is described with reference to the drawings, to a kind of overhead type rectangle wet type
The above-mentioned characteristic of electric cleaner, technical characteristic, advantage and its implementation are further described.
Fig. 1 be the present invention overhead type rectangle wet electrical dust precipitator be arranged at an absorption tower top a kind of embodiment whole
Body structural representation；
Fig. 2 is a kind of structural representation of embodiment of the housing self supporting structure of the present invention；
Fig. 3 is the depression angle schematic diagram of Fig. 2；
A kind of structural representation of embodiment that Fig. 4 is main couple and columnae medialis combines；
A kind of structural representation of embodiment that Fig. 5 is auxiliary girder and mixed lateral column combines.
Drawing reference numeral illustrates:
1- circumference section；2- wet electrical dust precipitator main paragraph；3- closing in oared segrne pii；4- deflector；5- uniform board；6- sprays
Humidification system；7- anode module；8- cathode module；9- hanging beam；10- is sprayed system；11- top incubator；Inside 12-
Post；13- main couple；14- auxiliary girder；15- mixed lateral column；16- annular truss.
Specific embodiment
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, brief description will be compareed below
The specific embodiment of the present invention.It should be evident that drawings in the following description are only some embodiments of the present invention, for
For those of ordinary skill in the art, on the premise of not paying creative work, other can also be obtained according to these accompanying drawings
Accompanying drawing, and obtain other embodiments.
For making simplified form, each in figure only schematically show part related to the present invention, and they do not represent
It is as the practical structures of product.In addition, so that simplified form readily appreciates, there is identical structure or function in some in figures
Part, only symbolically depicts one of, or has only marked one of.Herein, " one " not only represents
" only this " is it is also possible to represent the situation of " more than one ".
In embodiments of the invention one, with reference to Fig. 1, Fig. 2, Fig. 3, a kind of overhead type rectangle wet electrical dust precipitator includes:
The closing in oared segrne pii 3 that sets gradually from top to bottom, rectangle wet electrical dust precipitator main paragraph 2, circumference section 1, and it is arranged on wet
The housing self supporting structure of formula electric cleaner hull outside；
Wherein, circumference section 1 is tubular structure, and its upper end is rectangular opening, and lower end is circular port, due to the cross section on absorption tower
For circle, and the cross section of rectangle wet electrical dust precipitator main paragraph is rectangle, and the structure of aforesaid circumference section is easy to above connection
Rectangle wet electrical dust precipitator main paragraph and lower section absorption tower；
The housing of wet electrical dust precipitator main paragraph 2 is rectangular drum like housing, is internally provided with spray irrigation system 10, anode
Module 7, cathode module 8, spray humidification system 6, even distribution device；Spray irrigation system 10 is located at anode module 7 and cathode module 8
Top, located at the lower section of anode module 7 and cathode module 8, even distribution device is located at spray humidification system 6 for spray humidification system 6
Lower section, for guide gas from the top on absorption tower even into wet electrical dust precipitator each electric field region；Anode module 7 He
Cathode module 8 is interlocked arranged for interval；Wherein, anode module 7 includes anode arranged plate, water guider and connects and suspend anode arranged plate in midair
The first combined bay, cathode module 8 includes cathode line and connect and suspend in midair the second combined bay of cathode line；Even distribution device includes leading
Stream plate 4, uniform board 5 and block ring, deflector 4 is arranged at circumference section 1, and uniform board 5 and block ring are arranged in rectangle wet type
The bottom of electric cleaner main paragraph；
Closing in oared segrne pii 3 is to the tapered loudspeaker cylinder in top from bottom, and the outside of closing in oared segrne pii is provided with top
Portion's incubator 11；
Referring to Fig. 2,3, housing self supporting structure includes four columnae medialises, 15, four main couples 13, four of 12, four mixed lateral columns
Individual auxiliary girder 14, annular truss 16；Columnae medialis 12 is attached on the outer wall on absorption tower, and the top side of extending to of columnae medialis 12
The link position on round knot 1 and absorption tower simultaneously holds wet electrical dust precipitator, and contact to earth in the bottom of columnae medialis, each main couple 13 is arranged on
On one columnae medialis 12 and rely on this columnae medialis to invest on absorption tower；Main couple 13 is with auxiliary girder 14 interval setting and the two phase
Connect transmission load；In one mixed lateral column 15 of the correspondingly connected setting in the outer end of each auxiliary girder 14, and each assists purlin
The inner of frame 14 is connected with the outer wall on absorption tower, and does not contact to earth in the bottom of mixed lateral column 15, and top extends upwardly to wet-esp
At device and hold wet electrical dust precipitator, the load of mixed lateral column is transmitted by auxiliary girder, and load is transferred to main truss by auxiliary girder
On frame, load is transferred on columnae medialis main couple；Annular truss 16 is attached at the outer wall on absorption tower, and four columnae medialises 12 are arranged
On annular truss, load is transferred to annular truss and ground by four columnae medialises.
It should be noted that in other embodiments, main couple, auxiliary girder, columnae medialis, the unlimited number of mixed lateral column are set to
Four, other are capable of multiple numbers of self-supporting.
In embodiments of the invention two, embodiment one is improved, circumference section is by triangular plate and arc side set square
Composition, triangular plate base is connected with rectangle wet electrical dust precipitator main paragraph, and arc is connected with absorption tower in set square arc；Circumference
Section is α with the angle of absorption tower connection interface, 40 ° < α < 60 °.The material of circumference section is carbon steel, thickness 12mm～16mm, liner
Glass flake is anti-corrosion, outside mopping.
Wet electrical dust precipitator main body piece housing includes steel plate, cross reinforcing and waling；Material is carbon steel, thickness
12mm～16mm, glass inner-lining scale anticorrosion, outside mopping.
Closing in oared segrne pii (3), including wallboard and reinforcement；Wallboard and horizontal plane angle are β, 30 ° < β < 60 °；Closing in loudspeaker
Mouth section wallboard, is trapezoidal wallboard, and material is carbon steel, and thickness is 12mm～16mm, glass inner-lining scale anticorrosion, outside mopping.
In embodiments of the invention three, embodiment one is improved, spray irrigation system includes spraying tube layer and the
One nozzle, the system that is sprayed is located above cathode module, and is located in closing in oared segrne pii；First jet adopts solid atomization
Nozzle, realizes spray region uniform fold, realizes the flushing of entirely wet electric system.
In embodiments of the invention four, embodiment one is improved, spray humidification system includes spraying and rinses tube layer
And second nozzle, between anode module and even distribution device, second nozzle adopts solid-cone or hollow cone to spray humidification system
Atomizer, covers whole spray region, realizes flue gas and be uniformly humidified.
In embodiments of the invention five, embodiment one is improved, anode module is multiple, and multiple anode module
Dust-collecting area equal；Cathode module is multiple, and the cathode line number summation of multiple cathode module is equal；
First combined bay of anode module includes clamping plate, connecting plate, guiding gutter that water guider includes being interconnected, collects
Tank and drainpipe；Second combined bay of cathode module includes anvil beam, suspention beam, suspension rod, mast, cross bar；Cathode module is longitudinally
Or horizontal array arrangement, spacing is between 50～200mm；The heteropole of anode module and cathode module away from identical, spacing 150～
Between 220mm；
Anvil beam in cathode module, suspention beam are with bolts, and anvil beam adopts 2205 two-phase stainless Steel materials；Suspention beam
Using carbon steel, surface is provided with glass flake layer；
Suspension rod, mast, cross bar are all using 2205 two-phase stainless Steel materials, and connected mode each other is for bolt even
Connect；
Anode module middle-jiao yang, function of the spleen and stomach pole plate, clamping plate, the material of connecting plate are 2205 two-phase stainless Steel materials.
In embodiments of the invention six, embodiment one is improved, with reference to Fig. 3, four main couples 13 are around main truss
Frame 16 is uniformly distributed, each other arranged at right angles in 90 °；Four auxiliary girders 14 are uniformly distributed also around main couple 16, in 90 ° each other
Arranged at right angles angle at 45 ° with adjacent main couple.It can be said that main couple and auxiliary girder are all around absorption tower being uniformly distributed
's.In other embodiments, if the number of main couple and auxiliary girder is multiple in addition to four, main couple now and
Auxiliary girder is uniformly distributed also around absorption tower.
In embodiments of the invention seven, embodiment one is improved, with reference to shown in Fig. 4, main couple 13 is perpendicular by one
The framework of the chip of bar and Duo Gen cross bar composition, and this main couple 13 is attached on columnae medialis 12, the top of columnae medialis 12 extends
Save the link position of 1 and absorption tower to circumference and hold wet electrical dust precipitator.The main couple pattern of the present embodiment is simple and can
Realize to the support of wet electrical dust precipitator and the transmission of load.In other embodiments, main couple can also be that by right
Other frame structures that wet electrical dust precipitator is supported, and the apical position of columnae medialis also can change, as long as being capable of holding in the palm
Live the purpose of wet electrical dust precipitator.
In embodiments of the invention eight, embodiment one is improved, with reference to shown in Fig. 5, auxiliary girder 14 is by many
Brace forms, there is provided auxiliary power transmission point, the inner of auxiliary girder and absorption tower connect setting, outer end is connected with mixed lateral column, outward
The top of lateral column is extended to and is connected with the main paragraph of wet electrical dust precipitator and holds wet electrical dust precipitator.In other embodiment
In, auxiliary girder can also be that by other frame structures that wet electrical dust precipitator is supported, and the top of mixed lateral column
End position also can change, as long as being capable of holding the purpose of wet electrical dust precipitator.
In embodiments of the invention nine, embodiment one is improved, deflector is rectangular flat, and in circumference section
It is in tilted layout, angle of inclination is γ, 60 ° of 40 ° of ＜ γ ＜, and the material of deflector is ppr；
Uniform board is porous plate, and between 70%～90%, material is ppr to percent opening；
Block ring is straight-flanked ring, and between 150mm～250mm, material is 2205 pairs to the hem width (i.e. height) of this straight-flanked ring
Phase stainless steel.
In embodiments of the invention ten, embodiment one is improved, top incubator is rectangle or circular configuration, and
The number of top incubator is multiple, and is arranged symmetrically.With reference to Fig. 1, top incubator is two.
In embodiments of the invention 11, embodiment one is improved, be sprayed the spray tube layer of system, according to
Multiple electric field subregions of wet electrical dust precipitator carry out subregion arrangement, and the spray tube layer of each electric field subregion is arranged in same putting down
Face, material is pp.
In embodiments of the invention 12, embodiment one is improved, spraying is rinsed tube layer and is arranged in even distribution device
Top, material be 2205 two phase stainless steels.
The internal structure of the overhead type rectangle wet electrical dust precipitator of the present invention, can be using as lower section in assembling and production
Formula.By Fig. 1, Fig. 2 mode, carry out the installation of the overhead type rectangle wet electrical dust precipitator of the present invention, circumference section and existing absorption tower
Material tower wall is welded, and junction adopts reinforcement to reinforce；Lifting wet electricity main body piece housing, housing adopts transverse and longitudinal reinforcement to strengthen, with
The junction welding of circumference section；Lifting closing in horn mouth, is welded to connect place, is reinforced using reinforcement simultaneously, in wet electricity main body
Even distribution device choke apparatus are installed in piece housing bottom；In tower, anode hanging beam is installed, is supported in tower wall；
Positive plate with bolts in suspention beam, every 5～8 pole plates form anode row；After anode row makes, from
Tower top hangs in tower, and suspention beam is connected positioning by bolt with straight hanging beam, and anode row is carried out with bottom is spacing by top suspention
Fixing；Equidistant parallel arrangement between positive plate, with absorption tower centerline parallel, is parallel to each other between the plate row of positive plate, spacing
Between 300mm-400mm；Cathode line line row is corresponding with pole plate plate row, lifts with anode arranged plate simultaneously；Minus plate row includes the moon
Polar curve wire frame and cathode line, framework is built using pipe, and junction is all using fluting or bolt connection, welding；Cathode line cloth
Put between pipe, cathode line is using vertical arrangement or horizontal arranging mode；Pipe corresponds to cathode line perforate；Cathode line and framework
It is bolted, tension ensures the flatness of cathode line and prevents what flow of flue gas from causing to rock；Cathode line wire frame size with
Positive plate plate row's size corresponds；Negative electrode wire frame is installed and anode arranged plate between, is evenly arranged, neighbouring cathode frame parallel cloth
Put；Cathode frame mast and cathode beam bolt connection, anvil beam is suspended on negative electrode hanging beam, and bottom is carried out by the anti-goods of furniture for display rather than for use of negative electrode
Cathode frame is spacing, prevents cathode frame from rocking.Lay positive plate and be sprayed pipeline and negative electrode between cathode anode hanging beam
Line is sprayed pipeline；Spray piping apart from positive plate distance between 600mm-1000mm, apart from negative electrode hanging beam lower surface
400mm-600mm.
It is believed that the positive plate of the present invention and cathode line can be installed on the enclosure interior of wet electrical dust precipitator by other
Mode also should belong to protection scope of the present invention.
The wet electrical dust precipitator flue gas flow direction of the present invention is vertical current, using bottom in and top out mode；Flue gas is first through desulfurization
After section and mechanical demister, through flue gas even distribution device, enter in wet electrical dust precipitator, flue gas enters from wet electrical dust precipitator bottom
Enter, after wet electrical dust precipitator electric field section, enter net flue from wet electrical dust precipitator top, enter chimney, neat stress is directly arranged
Enter air.Wet electrical dust precipitator dust-cleaning principle is as follows, after low-tension supply is adjusted by transformer, makes to produce between cathode line and positive plate
Raw highfield, especially cathode line tip are concentrated due to energy, arcing electric discharge at first, enclose air in forceful electric power field action next week
Breakdown, make ionizing gas molecules, the process of ionizing gas molecules produces a large amount of electronics e-(avalanche process)；Flue gas passes through
During electric field region, quickly complete charged in electric field bottom, charged after subparticle in flue gas, drop and electron collision, charged after
Subparticle, drop etc. carry substantial amounts of negative electrical charge, under electric field force effect, charged after subparticle, drop faces south
Pole plate moves, and after particulate matter, drop strike on positive plate, discharges electric charge, and particulate matter, drop are enriched on positive plate, by
Smoke moisture supersaturation in tower, from becoming moisture film on positive plate, lower along pole plate gravity flow so that subparticle in flue gas, liquid
Drip and be removed.
It is rinsed including two kinds of backwashing manners, interval backwashing manner and continuous punching in the wet electrical dust precipitator to the present invention
Wash mode.Continuous flushing adopts super-fine atomization backwashing manner, increases smoke moisture, increases flue fog drip content, favorably simultaneously
On pole plate, gravity flow forms moisture film, and pole plate and polar curve are rinsed；Electric field top spray flushing pipe intermittently starting, using big
Flow high pressure washing, high-pressure washing water is effectively rinsed to positive plate, polar curve and whole electric field region, and two kinds of backwashing manners are realized
Effective flushing of whole deduster is it is ensured that deduster stable and high effective operation.
In a complete embodiment of the present invention, with reference to Fig. 1, Fig. 2, the material of the rectangular housing of wet electrical dust precipitator with
Existing absorption tower material is identical, adopts reinforcement to reinforce with former tower wall junction；Including circumference section 1, wet electrical dust precipitator main body
Section 2, closing in oared segrne pii 3, deflector 4, uniform board 5, spray humidification system 6, anode module 7, cathode module 8, hanging beam 9, spray
Pouring rinse-system 10, top incubator 11, columnae medialis 12, main couple 13, auxiliary girder 14, mixed lateral column 15 (can be outside work
Word steel) I-steel, annular truss 16.Anode arranged plate parallel to absorption tower center line arrange, minus plate be set with anode arranged plate it
Between, it is arranged in parallel.The positive plate of the present invention is on the longitudinal centre line of positive plate, and the transverse edge near positive plate, up and down
Each one circumference hole of setting, facilitates positive plate to suspend the uniform force it is ensured that in positive plate hoisting process in midair, peace has been effectively ensured
Polar board surface flatness during dress, can play installation, maintenance and second protection effect；Meanwhile, positive plate top is provided with equidistantly
Location hole, positive plate positions mode with bolts it is ensured that the flatness of pole plate, decreases spot corrosion etc. in running
Local corrosion, extends the service life of pole plate.Meanwhile, positive plate is fitted with the housing of wet electrical dust precipitator arrangement, effectively protects
Non-blind area between card positive plate and housing.In the present invention, the connected mode of cathode line is with bolts, welding；Anode
It is also adopted by bolt connection, welding between the anvil beam of plate and straight hanging beam, circular hanging beam.The positive plate of the present invention adopts anti-corrosion grade
Higher stainless steel；Cathode line and cathode line wire frame adopt anti-corrosion higher grade stainless steel.
The wet electrical dust precipitator of the present invention is easily installed maintenance, effectively reduces consumable quantity, alleviates the load on absorption tower,
Achieve negative electrode, anode asynchronous zoning high-efficiency washing is it is ensured that the efficient stable of wet electrical dust precipitator runs, and decrease investment
Operating cost.The wet electrical dust precipitator of the present invention, plate row is easy to modularized production, and easy for installation, repair and maintenance is time saving and energy saving；Cloudy
Polar curve lateral arrangement, saves negative electrode consumptive material, decreases cathode weight, alleviates the load on absorption tower.
It should be noted that above-described embodiment all can independent assortment as needed.The above is only the preferred of the present invention
Embodiment it is noted that for those skilled in the art, in the premise without departing from the principle of the invention
Under, some improvements and modifications can also be made, these improvements and modifications also should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of overhead type rectangle wet electrical dust precipitator is it is characterised in that include: the closing in horn mouth setting gradually from top to bottom
Section, the wet electrical dust precipitator main paragraph of rectangle, circumference section, and be arranged on the housing of described wet electrical dust precipitator hull outside from
Supporting construction；
Wherein, described circumference section upper end is rectangular opening, and lower end is circular port, for the described wet electrical dust precipitator master of connection top
Body section and the absorption tower of lower section；
The housing of described wet electrical dust precipitator main paragraph is rectangular drum like housing, is internally provided with spray irrigation system, anode mold
Block, cathode module, spray humidification system, even distribution device；Described spray irrigation system is located at described anode module and described negative electrode
The top of module, described spray humidification system is located at the lower section of described anode module and described cathode module, described even distribution device
Located at the lower section of described spray humidification system, described anode module and described cathode module are interlocked arranged for interval；Wherein, described sun
Pole module includes anode arranged plate, water guider and connects and suspend in midair the first combined bay of described anode arranged plate, described cathode module
Including cathode line and the second combined bay connecting and suspending in midair described cathode line；Described even distribution device include deflector, uniform board and
Block ring, described deflector is arranged at described circumference section, and described uniform board and described block ring are arranged in described wet type electricity
The bottom of cleaner body section；
Described closing in oared segrne pii is to the tapered loudspeaker cylinder in top from bottom, and the outside of described closing in oared segrne pii is provided with
Top incubator；
Described housing self supporting structure includes multiple columnae medialises, multiple mixed lateral column, multiple main couple, multiple auxiliary girder, annular
Truss；Described columnae medialis is attached on the outer wall on absorption tower, and the top of described columnae medialis extends to described circumference section and absorbs
The link position of tower simultaneously holds wet electrical dust precipitator, contacts to earth in the bottom of described columnae medialis, and each described main couple is arranged on one
On described columnae medialis；With described auxiliary girder interval setting and the two is connected with each other transmission load to described main couple；Each institute
State one described mixed lateral column of the correspondingly connected setting in outer end of auxiliary girder, and the inner of each described auxiliary girder and absorption tower
Outer wall connect, and the bottom of described mixed lateral column do not contact to earth, and top extends upwardly at wet electrical dust precipitator and holds wet type electricity
Deduster；Described annular truss is attached at the outer wall on absorption tower, and multiple described columnae medialises are arranged on described annular truss.
2. overhead type rectangle wet electrical dust precipitator according to claim 1 it is characterised in that:
Described circumference section is made up of triangular plate and arc side set square, and the base of described triangular plate is removed with described rectangle wet type electricity
Dirt device main paragraph connects, and described arc is connected with absorption tower in the arc of set square；
Described circumference section is α with the angle of absorption tower connection interface, 40 ° < α < 60 °.
3. overhead type rectangle wet electrical dust precipitator according to claim 1 it is characterised in that:
The reinforcement that described closing in oared segrne pii includes wallboard and is located on this wallboard, described wallboard is β with the angle of horizontal plane,
30°<β<60°；
Described wallboard is ladder type board.
4. overhead type rectangle wet electrical dust precipitator according to claim 1 it is characterised in that:
Described spray irrigation system includes spraying tube layer and first jet, and described spray irrigation system is located in described cathode module
Side, and be located in described closing in oared segrne pii；Described first jet adopts solid atomizer, realizes spray region and uniformly covers
Lid, realizes the flushing of entirely wet electric system；
And/or；
Described spray humidification system includes spraying and rinses tube layer and second nozzle, and described spray humidification system is located at described anode mold
Between block and described even distribution device, described second nozzle adopts solid-cone or hollow cone atomizer, covers whole spray region,
Realize flue gas to be uniformly humidified.
5. overhead type rectangle wet electrical dust precipitator according to claim 1 it is characterised in that:
Described anode module is multiple, and the dust-collecting area of multiple described anode module is equal；Described cathode module is multiple, and
The cathode line number summation of multiple described cathode module is equal；
First combined bay of described anode module includes clamping plate, connecting plate, guiding gutter that described water guider includes being interconnected,
Collect tank and drainpipe；Second combined bay of described cathode module includes anvil beam, suspention beam, suspension rod, mast, cross bar；Described
The vertical or horizontal array of cathode module arranges, spacing is between 50～200mm；Described anode module is different with described cathode module
Pole span is identical, and spacing is between 150～220mm；
Anvil beam in described cathode module, suspention beam are with bolts, and anvil beam adopts 2205 two-phase stainless Steel materials；Suspention beam
Using carbon steel, surface is provided with glass flake layer；
Described suspension rod, mast, cross bar are all using 2205 two-phase stainless Steel materials, and connected mode each other is for bolt even
Connect；
Described anode module middle-jiao yang, function of the spleen and stomach pole plate, clamping plate, the material of connecting plate are 2205 two-phase stainless Steel materials.
6. overhead type rectangle wet electrical dust precipitator according to claim 1 it is characterised in that:
The inner surface of described circumference section is provided with glass flake anticorrosive coat, and outer surface is provided with protection by paints and lacquers layer；
And/or；
The inner surface of the housing of described wet electrical dust precipitator main paragraph is provided with glass flake anticorrosive coat, and outer surface is provided with protection by paints and lacquers
Layer；
And/or；
The inner surface of the wallboard of described closing in oared segrne pii is provided with glass flake anticorrosive coat, and outer surface is provided with protection by paints and lacquers layer.
7. overhead type rectangle wet electrical dust precipitator according to claim 1 it is characterised in that:
Multiple described main couples are uniformly distributed around absorption tower, and multiple described auxiliary girders are uniformly distributed also around absorption tower.
8. overhead type rectangle wet electrical dust precipitator according to claim 1 it is characterised in that:
Described deflector is rectangular flat, and saves tilted arrangement in described circumference, and angle of inclination is γ, 60 ° of 40 ° of ＜ γ ＜,
And the material of described deflector is ppr；
Described uniform board is porous plate, and between 70%～90%, material is ppr to percent opening；
Described block ring is straight-flanked ring, and between 150mm～250mm, material is 2205 two phase stainless steels to the hem width of this straight-flanked ring.
9. overhead type rectangle wet electrical dust precipitator according to claim 1 it is characterised in that:
Described top incubator is rectangle or circular configuration, and the number of described top incubator is multiple, and is arranged symmetrically.
10. overhead type rectangle wet electrical dust precipitator according to claim 1 it is characterised in that:
The spray tube layer of described spray irrigation system, carries out subregion arrangement according to multiple electric field subregions of wet electrical dust precipitator, and
The spray tube layer of each electric field subregion is arranged in same plane, and material is pp；
And/or；
The top that tube layer is arranged in described even distribution device is rinsed in described spraying, and material is 2205 two phase stainless steels.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410838082.7A CN104437870B (en) | 2014-12-24 | 2014-12-24 | Overhead type rectangular wet electric precipitator |
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|---|---|---|---|
| CN201410838082.7A CN104437870B (en) | 2014-12-24 | 2014-12-24 | Overhead type rectangular wet electric precipitator |
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| CN104437870A CN104437870A (en) | 2015-03-25 |
| CN104437870B true CN104437870B (en) | 2017-01-18 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104941805B (en) * | 2015-06-12 | 2017-09-26 | 中国能源建设集团湖南火电建设有限公司 | A kind of Wet-type electric dust removal system installation method |
| CN105312154B (en) * | 2015-12-07 | 2017-10-24 | 福建龙净环保股份有限公司 | A kind of wet electrical dust precipitator |
| CN105855057A (en) * | 2016-04-29 | 2016-08-17 | 浙江天地环保科技有限公司 | Horizontal type wet electrostatic precipitator efficient collecting electrode device and fixing structure thereof |
| CN105964129B (en) * | 2016-06-28 | 2018-12-25 | 江苏亿金环保科技有限公司 | Desulphurizing and dust-removing integral system |
| CN105999957B (en) * | 2016-07-05 | 2018-08-24 | 山东省环能设计院股份有限公司 | A kind of wet static dedusting system that can be repaired automatically having high safety grade |
| CN115254424B (en) * | 2022-07-28 | 2023-05-16 | 上海协微环境科技有限公司 | Tail gas treatment system with high-efficiency dust removal function |
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