CN204380859U - Overhead type rectangle wet electrical dust precipitator - Google Patents
Overhead type rectangle wet electrical dust precipitator Download PDFInfo
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- CN204380859U CN204380859U CN201420853190.7U CN201420853190U CN204380859U CN 204380859 U CN204380859 U CN 204380859U CN 201420853190 U CN201420853190 U CN 201420853190U CN 204380859 U CN204380859 U CN 204380859U
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Abstract
The utility model provides a kind of overhead type rectangle wet electrical dust precipitator, and its main paragraph is rectangular drum like structure, and main paragraph comprises spray irrigation system, anode module, cathode module, spray humidification system, even distribution device; The utility model is also provided with housing self supporting structure, and it comprises columnae medialis, mixed lateral column, main couple, auxiliary girder, annular truss; The columnae medialis being provided with main couple is attached on the outer wall on absorption tower, and wet electrical dust precipitator is held on its top; Main couple and auxiliary girder interval arrange and the two is interconnected transmission load; Wet electrical dust precipitator is held on the mixed lateral column top being provided with auxiliary girder; Annular truss is attached at the outer wall on absorption tower, and columnae medialis is arranged on annular truss.The utility model can realize deduster inner homogeneous subregion, and anode and cathode system modular is produced; Self supporting structure, without the need to taking up an area, is installed original absorption tower, is overhauled without impact; Increase effective dust-collecting area, improve efficiency of dust collection.
Description
Technical field
The utility model relates to flue-gas dust removal and purification field, espespecially a kind of overhead type rectangle wet electrical dust precipitator.
Background technology
Along with country's improving constantly coal-fired boiler tail gas dust emission standard, dust emission requires significantly to be increased to 10mg/Nm
3even 5mg/Nm
3.And the SO carried in wet-method desulfurized fume
3aerosol and " gypsum rain " particle also become new pollution sources, and the demand of visible 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, effectively cannot ensure the ultra-clean discharge of exhaust gas dust after desulfurizer.And wet electrical dust precipitator is the strong guarantee of ultra-clean discharge as terminal Dust Control Technology.
Traditional overhead type wet electrical dust precipitator, is the one of comparatively normal application in wet electrical dust precipitator, and mostly is circular wet electrical dust precipitator.The expanding wet electrical dust precipitator of circle in actual design, due to its irregular profile, when carrying out printed line formula matched design, internal zone dividing is uneven, usually there is different district phenomenon, and interregional dust collector pole area difference, can reach 25%; Subregion is uneven, and anode and cathode system cannot realize modularized design in enormous quantities, makes, in equipment making process, to encounter more difficulty, and it is many to make die form, commaterial, plurality of specifications, complex management;
Owing to designing and producing in process, anode and cathode material, specifications and models are of a great variety, and between different model, difference is less, in installation process, easily occur misloading phenomenon, and after setup error, dismounting and reinstalling is wasted time and energy;
Meanwhile, the circular wet electrical dust precipitator supporting construction of overhead type is complicated, usually adopts the outer steel bracket form of tower, and the outer steel bracket of tower wraps up original absorption tower, and floor space is larger; And steel bracket interlaced arrangement, have impact on the line arrangement on original absorption tower; And there is considerable influence to desulphurization system body, auxiliary device, conduit running, installation, maintenance, debugging, maintenance etc. further.
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, ensure that wet electrical dust precipitator efficient stable runs, ensure wet electrical dust precipitator dust removing effects; Realize facilitating installation and maintenance to become wet-esp field simultaneously and need key problems-solving.
Utility model content
The purpose of this utility model is to provide a kind of overhead type rectangle wet electrical dust precipitator, can realize deduster inner homogeneous subregion, and anode and cathode system modular is produced, and is convenient to install; Self supporting structure, without the need to taking up an area, installing original absorption tower, overhauling without impact; Increase effective dust-collecting area, improve efficiency of dust collection.
The technical scheme that the utility model provides is as follows:
Overhead type rectangle wet electrical dust precipitator comprises: the closing in oared segrne pii set gradually from top to bottom, the wet electrical dust precipitator main paragraph of rectangle, a circumference joint, and is arranged on the housing self supporting structure of described wet electrical dust precipitator hull outside;
Wherein, described circumference joint upper end is rectangular opening, and lower end is circular port, for the absorption tower of the described wet electrical dust precipitator main paragraph and below that are communicated with top;
The housing of described wet electrical dust precipitator main paragraph is rectangular drum like housing, and its inside is provided with spray irrigation system, anode module, cathode module, spray humidification system, even distribution device; Described spray irrigation system is located at the top of described anode module and described cathode module, described spray humidification system is located at the below of described anode module and described cathode module, described even distribution device is located at the below of described spray humidification system, described anode module and described cathode module interlock interval arrange; Wherein, described anode module comprises anode arranged plate, water guider and connection and suspends the first combined bay of described anode arranged plate in midair, and described cathode module comprises cathode line and connection and suspends the second combined bay of described cathode line in midair; Described even distribution device comprises deflector, uniform board and block ring, and described deflector is arranged on described circumference joint place, and described uniform board and described block ring are arranged in the bottom of described wet electrical dust precipitator main paragraph;
Described closing in oared segrne pii is the loudspeaker cylindrical shell from bottom to top convergent, and the outside of described closing in oared segrne pii is provided with top incubator;
Described housing self supporting structure comprises multiple columnae medialis, 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 the link position on described circumference joint and absorption tower and holds wet electrical dust precipitator, contact to earth in the bottom of described columnae medialis, each described main couple is arranged on a described columnae medialis; Described main couple and described auxiliary girder interval arranges and the two is interconnected transmission load; Connect accordingly in the outer end of each described auxiliary girder and a described mixed lateral column is set, and each the inner of described auxiliary girder is connected with the outer wall on absorption tower, and do not contact to earth in the bottom of described mixed lateral column, top extends upwardly to wet electrical dust precipitator place and holds wet electrical dust precipitator; Described annular truss is attached at the outer wall on absorption tower, and multiple described columnae medialis is arranged on described annular truss.
Preferably, described circumference joint is made up of triangular plate and arc limit set square, and the base of described triangular plate is connected with described rectangle wet electrical dust precipitator main paragraph, and the arc limit of described arc limit set square is connected with absorption tower;
Described circumference joint is α with the angle of absorption tower connection interface, 40 ° of < α <60 °.
Preferably, described closing in oared segrne pii comprises wallboard and is located at the reinforcement on this wallboard, and the angle of described wallboard and horizontal plane is β, 30 ° of < β <60 °;
Described wallboard is stepped plate.
Preferably, described spray irrigation system comprises spray tube layer and first jet, and described spray irrigation system is positioned at above described cathode module, and is positioned at described closing in oared segrne pii; Described first jet adopts solid atomizer, realizes spray region uniform fold, realizes the flushing of whole wet electric system;
Preferably, described spray humidification system comprises spraying and rinses tube layer and second nozzle, and described spray humidification system is located between described anode module and described even distribution device, and described second nozzle adopts solid-cone or hollow cone atomizer, cover whole spray region, realize flue gas and be evenly humidified.
Preferably, 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 comprises clamping plate, connecting plate, described water guider comprise be interconnected guiding gutter, gather tank and drainpipe; Second combined bay of described cathode module comprises anvil beam, suspention beam, suspension rod, mast, cross bar; The vertical or horizontal arranged in arrays of described cathode module, spacing is between 50 ~ 200mm; The heteropole of described anode module and described cathode module is apart from 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 adopts carbon steel, and surface is provided with glass flake layer;
Described suspension rod, mast, cross bar all adopt 2205 two-phase stainless Steel materials, and connected mode is each other bolt connection;
The material of described anode module Anodic plate, clamping plate, connecting plate is 2205 two-phase stainless Steel materials.
Preferably, the inner surface of described circumference joint is provided with glass flake anticorrosive coat, and 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, and outer surface 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, and outer surface is provided with protection by paints and lacquers layer.
Preferably, multiple described main couple is uniformly distributed around absorption tower, and multiple described auxiliary girder is also uniformly distributed around absorption tower.
Preferably, described deflector is rectangular flat, and in the tilted layout of described circumference joint, angle of inclination is γ, 40 ° of < γ < 60 °, and the material of described deflector is PPR;
Described uniform board is porous plate, and percent opening is between 70% ~ 90%, and material is PPR;
Described block ring is straight-flanked ring, and the hem width of this straight-flanked ring is between 150mm ~ 250mm, and material is 2205 two phase stainless steels.
Preferably, described top incubator is rectangle or circular configuration, and the number of described top incubator is multiple, and is arranged symmetrically with.
Preferably, the spray tube layer of described spray irrigation system, the multiple electric field subregions according to wet electrical dust precipitator carry out subregion layout, 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, and material is 2205 two phase stainless steels.
The overhead type rectangle wet electrical dust precipitator provided by the utility model, can bring following at least one beneficial effect:
1. modularized production can be realized.The expanding wet electrical dust precipitator of circle in the prior art, because its shape is circular, when carrying out printed line formula matched design, the anode and cathode system of internal electrical place needs round-shapedly to mate with aforesaid, and the slab anode structure so just defined in whole electric field region cannot be divided into the identical module of polylith preferably, thus large batch of modularized design cannot be realized, make, in equipment making process, to encounter more difficulty, the die form of making is many, specification is many, complex management.And rectangle wet electrical dust precipitator of the present utility model can realize modularized design completely, anode and cathode system module is unified, and mould is unified, and each module part, material, perforate etc. are all identical, makes simple, convenient management.
2. increase effective dust-collecting area.Compared with traditional circular wet electrical dust precipitator, overhead type rectangle wet electrical dust precipitator of the present utility model, under identical flue gas flow rate condition, makes effective dust-collecting area of pole plate increase more than 10%, further increases efficiency of dust collection.
3. uniform segmentation is carried out in pair electric field region, convenient control.Overhead type rectangle wet electrical dust precipitator of the present utility model, internal electric field Division is even, and each subregion anode mold number of blocks is identical, has the dust collector pole area of identical or substantially identical (difference is within 5%).Each subregion cathode module quantity is identical, and have the cathode line number of identical or substantially identical (difference is within 5%), electric-field intensity is identical, and secondary voltage, secondary current intensity are identical; And anode and cathode module parallel interlaced arrangement, the electric field entrance cross section of each subregion is identical, ensure that flue gas enters each subregion uniformly, ensure that the removal effect of exhaust gas dust.Each electric field region can realize zonal control, and the setting of power supply and flooding nozzle all can zonal control, and it is more convenient to use.
4, the housing self-supporting design of wet electrical dust precipitator, structure is simple.Rectangle wet electrical dust precipitator of the present utility model adopts novel self-supporting mode.Supporting construction comprises multiple main couple, multiple auxiliary girder and an annular truss, and the columnae medialis (steel column) that wherein multiple main couple is attached on the outer wall of absorption tower lands; The outer end of multiple auxiliary girder is attached on mixed lateral column (steel column), and tower wall that is inner and absorption tower attaches, and because mixed lateral column does not land, and multiple auxiliary girder does not all land.The load conversion of steel column is become the internal force of truss by rigid annular shaped truss, and the load of rectangle wet electrical dust precipitator is equivalent to circle, during design absorption tower steel bracket mechanism, rectangle wet electrical dust precipitator can be equivalent to circular wet electrical dust precipitator; Simultaneously by appropriate design, steel bracket itself has enough structural rigidities, is increase vertical load for absorption tower.Multiple main couple is uniformly distributed around absorption tower, and multiple auxiliary girder is also uniformly distributed around absorption tower.This body weight of rectangle wet electrical dust precipitator without the need to being directly passed to lower absorbent tower, but is realized by a kind of novel supporting way, by increasing vertical strengthening ribs at absorbing tower wall, realizes the support of top, absorption tower wet electrical dust precipitator.This supporting way can regard the partial enlargement to conventional suction tower vertical strengthening ribs as, and without the need to increasing floor space, the extension just on direction in space, changes the staggered parcel form of conventional tower outer support to absorption tower; Desulphurization system body, auxiliary device, conduit running, installation, maintenance, debugging, maintenance etc. are had no effect.
Accompanying drawing explanation
Below by clearly understandable mode, accompanying drawings preferred embodiment, is further described a kind of above-mentioned characteristic of overhead type rectangle wet electrical dust precipitator, technical characteristic, advantage and implementation thereof.
Fig. 1 is the overall structure schematic diagram that overhead type rectangle wet electrical dust precipitator of the present utility model is arranged at a kind of embodiment on a top, absorption tower;
Fig. 2 is the structural representation of a kind of embodiment of housing self supporting structure of the present utility model;
Fig. 3 is the depression angle schematic diagram of Fig. 2;
Fig. 4 is the structural representation of a kind of embodiment that main couple and columnae medialis combine;
Fig. 5 is the structural representation of a kind of embodiment that auxiliary girder and mixed lateral column combine.
Drawing reference numeral illustrates:
1-has an area of joint; 2-wet electrical dust precipitator main paragraph; 3-closing in oared segrne pii; 4-deflector; 5-uniform board; 6-spray humidification system; 7-anode module; 8-cathode module; 9-hanging beam; 10-spray irrigation system; 11-top incubator; 12-columnae medialis; 13-main couple; 14-auxiliary girder; 15-mixed lateral column; 16-annular truss.
Detailed description of the invention
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, contrast accompanying drawing is illustrated detailed description of the invention of the present utility model below.Apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings, and obtain other embodiment.
For making simplified form, only schematically show the part relevant to the utility model in each figure, they do not represent its practical structures as product.In addition, be convenient to make simplified form understand, there are the parts of identical structure or function in some figure, only schematically depict one of them, or only marked one of them.In this article, " one " not only represents " only this ", also can represent the situation of " more than one ".
In embodiment one of the present utility model, with reference to Fig. 1, Fig. 2, Fig. 3, a kind of overhead type rectangle wet electrical dust precipitator comprises: the closing in oared segrne pii 3 set gradually from top to bottom, rectangle wet electrical dust precipitator main paragraph 2, circumference joint 1, and is arranged on the housing self supporting structure of wet electrical dust precipitator hull outside;
Wherein, circumference joint 1 is tubular structure, its upper end is rectangular opening, lower end is circular port, cross section due to absorption tower is circular, and the cross section of rectangle wet electrical dust precipitator main paragraph is rectangle, the structure of aforesaid circumference joint is convenient to be communicated with the rectangle wet electrical dust precipitator main paragraph of top and the absorption tower of below;
The housing of wet electrical dust precipitator main paragraph 2 is rectangular drum like housing, and its inside is 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 the top of anode module 7 and cathode module 8, spray humidification system 6 is located at the below of anode module 7 and cathode module 8, even distribution device is located at the below of spray humidification system 6, evenly enters each electric field region of wet electrical dust precipitator for guiding gas from the top on absorption tower; Anode module 7 and cathode module 8 interlock interval arrange; Wherein, anode module 7 comprises anode arranged plate, water guider and connection and suspends the first combined bay of anode arranged plate in midair, and cathode module 8 comprises cathode line and connection and suspends the second combined bay of cathode line in midair; Even distribution device comprises deflector 4, uniform board 5 and block ring, and deflector 4 is arranged on circumference joint 1 place, and uniform board 5 and block ring are arranged in the bottom of rectangle wet electrical dust precipitator main paragraph;
Closing in oared segrne pii 3 is the loudspeaker cylindrical shell from bottom to top convergent, and the outside of closing in oared segrne pii is provided with top incubator 11;
See Fig. 2,3, housing self supporting structure comprises four columnae medialises, 12, four mixed lateral columns, 15, four main couples 13, four auxiliary girders 14, annular truss 16; Columnae medialis 12 is attached on the outer wall on absorption tower, and the top of columnae medialis 12 extends to the link position on circumference joint 1 and absorption tower and holds wet electrical dust precipitator, contact to earth in the bottom of columnae medialis, each main couple 13 to be arranged on a columnae medialis 12 and to rely on this columnae medialis to invest on absorption tower; Main couple 13 and auxiliary girder 14 interval arranges and the two is interconnected transmission load; Connect accordingly in the outer end of each auxiliary girder 14 and a mixed lateral column 15 is set, and each the inner of auxiliary girder 14 is connected with the outer wall on absorption tower, and do not contact to earth in the bottom of mixed lateral column 15, top extends upwardly to wet electrical dust precipitator place and holds wet electrical dust precipitator, the load of mixed lateral column is transmitted by auxiliary girder, load is passed on main couple by auxiliary girder, and load is passed on columnae medialis by main couple; Annular truss 16 is attached at the outer wall on absorption tower, and four columnae medialises 12 are arranged on annular truss, and load is passed to annular truss and ground by four columnae medialises.
It should be noted that in other embodiments, the number of main couple, auxiliary girder, columnae medialis, mixed lateral column is not defined as four, and other can realize multiple numbers of self-supporting.
In embodiment two of the present utility model, improve embodiment one, circumference joint is made up of triangular plate and arc limit set square, and triangular plate base is connected with rectangle wet electrical dust precipitator main paragraph, and set square arc limit, arc limit is connected with absorption tower; Circumference joint is α with the angle of absorption tower connection interface, 40 ° of < α <60 °.The material of circumference joint is carbon steel, thickness 12mm ~ 16mm, glass inner-lining scale anticorrosion, outside mopping.
Wet electrical dust precipitator main paragraph housing comprises 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), comprises wallboard and reinforcement; Wallboard and horizontal plane angle are β, 30 ° of < β <60 °; Closing in oared segrne pii wallboard, be trapezoidal wallboard, material is carbon steel, and thickness is 12mm ~ 16mm, glass inner-lining scale anticorrosion, outside mopping.
In embodiment three of the present utility model, improve embodiment one, spray irrigation system comprises spray tube layer and first jet, and spray irrigation system is positioned at above cathode module, and is positioned at closing in oared segrne pii; First jet adopts solid atomizer, realizes spray region uniform fold, realizes the flushing of whole wet electric system.
In embodiment four of the present utility model, embodiment one is improved, spray humidification system comprises spraying and rinses tube layer and second nozzle, spray humidification system is located between anode module and even distribution device, second nozzle adopts solid-cone or hollow cone atomizer, cover whole spray region, realize flue gas and be evenly humidified.
In embodiment five of the present utility model, improve embodiment one, anode module is multiple, and the dust-collecting area of multiple anode module is equal; Cathode module is multiple, and the cathode line number summation of multiple cathode module is equal;
First combined bay of anode module comprises clamping plate, connecting plate, water guider comprise be interconnected guiding gutter, gather tank and drainpipe; Second combined bay of cathode module comprises anvil beam, suspention beam, suspension rod, mast, cross bar; The vertical or horizontal arranged in arrays of cathode module, spacing is between 50 ~ 200mm; The heteropole of anode module and cathode module is apart from identical, and spacing is between 150 ~ 220mm;
Anvil beam in cathode module, suspention beam are with bolts, and anvil beam adopts 2205 two-phase stainless Steel materials; Suspention beam adopts carbon steel, and surface is provided with glass flake layer;
Suspension rod, mast, cross bar all adopt 2205 two-phase stainless Steel materials, and connected mode is each other bolt connection;
The material of anode module Anodic plate, clamping plate, connecting plate is 2205 two-phase stainless Steel materials.
In embodiment six of the present utility model, improve embodiment one, with reference to Fig. 3, four main couples 13 are uniformly distributed around main couple 16, each other arranged at right angles in 90 °; Four auxiliary girders 14 are also uniformly distributed around main couple 16, each other arranged at right angles in 90 ° angle at 45 ° with adjacent main truss.Can think, main couple and auxiliary girder are all equally distributed around absorption tower.In other embodiments, if the number of main couple and auxiliary girder is multiple except four, main couple now and auxiliary girder are also uniformly distributed around absorption tower.
In embodiment seven of the present utility model, embodiment one is improved, with reference to shown in Fig. 4, the framework of the chip that main couple 13 is made up of a montant and Duo Gen cross bar, and this main couple 13 is attached on columnae medialis 12, the top of columnae medialis 12 extends to the link position on circumference joint 1 and absorption tower and holds wet electrical dust precipitator.Simple and the transmission of the support that can realize wet electrical dust precipitator and load of the main couple pattern of the present embodiment.In other embodiments, main couple also can be other frame structures that can realize supporting wet electrical dust precipitator, and the apical position of columnae medialis also can change, as long as can realize the object of holding wet electrical dust precipitator.
In embodiment eight of the present utility model, embodiment one is improved, with reference to shown in Fig. 5, auxiliary girder 14 is made up of many braces, provide auxiliary power transmission point, the inner of auxiliary girder is connected with absorption tower and arranges, and outer end is connected with mixed lateral column, and the top of mixed lateral column extends to and to be connected with the main paragraph of wet electrical dust precipitator and to hold wet electrical dust precipitator.In other embodiments, auxiliary girder also can be other frame structures that can realize supporting wet electrical dust precipitator, and the apical position of mixed lateral column also can change, as long as can realize the object of holding wet electrical dust precipitator.
In embodiment nine of the present utility model, improve embodiment one, deflector is rectangular flat, and in the tilted layout of circumference joint, angle of inclination is γ, 40 ° of < γ < 60 °, and the material of deflector is PPR;
Uniform board is porous plate, and percent opening is between 70% ~ 90%, and material is PPR;
Block ring is straight-flanked ring, and between 150mm ~ 250mm, material is 2205 two phase stainless steels to the hem width (i.e. height) of this straight-flanked ring.
In embodiment ten of the present utility model, improve embodiment one, top incubator is rectangle or circular configuration, and the number of top incubator is multiple, and is arranged symmetrically with.With reference to Fig. 1, top incubator is two.
In embodiment 11 of the present utility model, improve embodiment one, the spray tube layer of spray irrigation system, the multiple electric field subregions according to wet electrical dust precipitator carry out subregion layout, and the spray tube layer of each electric field subregion is arranged in same plane, material is PP.
In embodiment 12 of the present utility model, improve embodiment one, the top that tube layer is arranged in even distribution device is rinsed in spraying, and material is 2205 two phase stainless steels.
The internal structure of overhead type rectangle wet electrical dust precipitator of the present utility model, can be in the following way when assembling and produce.By Fig. 1, Fig. 2 mode, carry out the installation of overhead type rectangle wet electrical dust precipitator of the present utility model, circumference joint welds with existing absorption tower material tower wall, and junction adopts reinforcement to reinforce; The wet electric main paragraph housing of lifting, housing adopts transverse and longitudinal reinforcement to strengthen, and saves junction weld with circumference; Lifting closing in horn mouth, is welded to connect place, adopts reinforcement to reinforce simultaneously, installs even distribution device choke apparatus at wet electric main paragraph housing bottom; In tower, anode hanging beam is installed, is supported in Ta Bishang;
Positive plate is with bolts on suspention beam, and every 5 ~ 8 pole plates form anode row; After anode row is made, hang in tower from tower top, suspention beam to be connected with straight hanging beam by bolt locates, and anode row is suspended in midair by top and bottom is spacing is fixed; Between positive plate, equidistant parallel is arranged, with absorption tower centerline parallel, be parallel to each other between the plate row of positive plate, spacing is between 300mm-400mm; Cathode line line row arranges corresponding with pole plate plate, lifts with anode arranged plate simultaneously; Cathode line wire frame and cathode line are drawn together in minus plate package, and framework adopts pipe to build, and junction all adopts fluting or bolt to connect, welding; Cathode line is arranged between pipe, and cathode line adopts vertically arranges or horizontal arranging mode; The corresponding cathode line perforate of pipe; Cathode line and framework are bolted, and tension ensures the flatness of cathode line and rocking of preventing flow of flue gas from causing; Size one_to_one corresponding arranged by cathode line wire frame size and positive plate plate; Negative electrode wire frame is installed between anode arranged plate, is evenly arranged, and neighbouring cathode frame parallel is arranged; Cathode frame mast is connected with cathode beam bolt, and anvil beam is suspended on negative electrode hanging beam, and it is spacing that cathode frame is carried out by the anti-goods of furniture for display rather than for use of negative electrode in bottom, prevents cathode frame from rocking.Positive plate spray irrigation pipeline and cathode line spray irrigation pipeline is laid between cathode anode hanging beam; Spray piping distance positive plate distance between 600mm-1000mm, distance negative electrode hanging beam lower surface 400mm-600mm.
Should think, other modes that positive plate of the present utility model and cathode line can be installed on the enclosure interior of wet electrical dust precipitator also should belong to protection domain of the present utility model.
Wet electrical dust precipitator flue gas flow direction of the present utility model is vertical current, adopts bottom in and top out mode; Flue gas, first after desulfurization section and mechanical demister, through flue gas even distribution device, enters in wet electrical dust precipitator, flue gas enters from wet electrical dust precipitator bottom, after wet electrical dust precipitator electric field section, enters clean flue from wet electrical dust precipitator top, enter chimney, neat stress directly enters air.Wet electrical dust precipitator dust-cleaning principle is as follows, after low-tension supply is regulated by transformer, make to produce highfield between cathode line and positive plate, especially cathode line is most advanced and sophisticated due to concentration of energy, occur that arcing is discharged at first, under highfield effect, surrounding air is breakdown, makes ionizing gas molecules, and the process of ionizing gas molecules produces a large amount of electronics e
-(avalanche process); When flue gas is by electric field region, complete rapidly charged bottom electric field, charged after subparticle in flue gas, drop and electron collision, subparticle after charged, drop etc. carry a large amount of negative electrical charges, under electric field force effect, subparticle after charged, drop face south pole plate motion, particle, drop strike after on positive plate, release electric charge, and particle, drop are enriched on positive plate, due to smoke moisture supersaturation in tower, positive plate has moisture film of one's own, under along pole plate gravity flow, make the subparticle in flue gas, drop is removed.
Comprise two kinds of backwashing manners carrying out flushing to wet electrical dust precipitator of the present utility model, interval backwashing manner and continuous flushing mode.Continuous flushing adopts super-fine atomization backwashing manner, increases smoke moisture, increases flue fog drip content, is conducive to gravity flow on pole plate simultaneously and forms moisture film, rinse pole plate and polar curve; Electric field top spray flushing pipe intermittently starting, employing big-flow high-pressure rinses, high-pressure washing water antianode plate, polar curve and whole electric field region are effectively rinsed, and two kinds of backwashing manners achieve effective flushing of whole deduster, ensure that deduster stable and high effective operation.
In a complete embodiment of the present utility model, with reference to Fig. 1, Fig. 2, the material of the rectangular housing of wet electrical dust precipitator is identical with existing absorption tower material, adopts reinforcement to reinforce with former Ta Bi junction; Comprise circumference joint 1, wet electrical dust precipitator main paragraph 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 irrigation system 10, top incubator 11, columnae medialis 12, main couple 13, auxiliary girder 14, mixed lateral column 15 (can be outside I-steel) I-steel, annular truss 16.Anode arranged plate is parallel to absorption tower center line and arranges, minus plate row is placed between anode arranged plate, is arranged in parallel.Positive plate of the present utility model is on the longitudinal centre line of positive plate, and the transverse edge of close positive plate, a circumference hole is respectively set up and down, positive plate is facilitated to suspend in midair, ensure that the uniform force in positive plate hoisting process, effectively ensure that polar board surface flatness in installation process, installation, maintenance and second protection effect can be played; Meanwhile, positive plate top is provided with equidistant locating hole, and positive plate locates mode with bolts, ensure that the flatness of pole plate, decreases the local corrosion such as spot corrosion in running, extends the service life of pole plate.Meanwhile, the housing of positive plate and wet electrical dust precipitator is fitted and is arranged, effectively ensures non-blind area between positive plate and housing.In the utility model, the connected mode of cathode line is with bolts, welding; Also with bolts between the anvil beam of positive plate and straight hanging beam, circular hanging beam, welding.Positive plate of the present utility model adopts the stainless steel that anticorrosion higher grade; Cathode line and cathode line wire frame adopt the stainless steel that anticorrosion higher grade.
Wet electrical dust precipitator of the present utility model is convenient to installation and repairing, effectively reduce consumable quantity, alleviate the load on absorption tower, achieve negative electrode, anode asynchronous zoning high-efficiency washing, ensure that the efficient stable of wet electrical dust precipitator runs, and decrease investment operating cost.Wet electrical dust precipitator of the present utility model, plate row is easy to modularized production, and easy for installation, repair and maintenance is time saving and energy saving; Cathode line 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 required.The above is only preferred embodiment of the present utility model; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (10)
1. an overhead type rectangle wet electrical dust precipitator, it is characterized in that, comprise: the closing in oared segrne pii set gradually from top to bottom, the wet electrical dust precipitator main paragraph of rectangle, circumference joint, and be arranged on the housing self supporting structure of described wet electrical dust precipitator hull outside;
Wherein, described circumference joint upper end is rectangular opening, and lower end is circular port, for the absorption tower of the described wet electrical dust precipitator main paragraph and below that are communicated with top;
The housing of described wet electrical dust precipitator main paragraph is rectangular drum like housing, and its inside is provided with spray irrigation system, anode module, cathode module, spray humidification system, even distribution device; Described spray irrigation system is located at the top of described anode module and described cathode module, described spray humidification system is located at the below of described anode module and described cathode module, described even distribution device is located at the below of described spray humidification system, described anode module and described cathode module interlock interval arrange; Wherein, described anode module comprises anode arranged plate, water guider and connection and suspends the first combined bay of described anode arranged plate in midair, and described cathode module comprises cathode line and connection and suspends the second combined bay of described cathode line in midair; Described even distribution device comprises deflector, uniform board and block ring, and described deflector is arranged on described circumference joint place, and described uniform board and described block ring are arranged in the bottom of described wet electrical dust precipitator main paragraph;
Described closing in oared segrne pii is the loudspeaker cylindrical shell from bottom to top convergent, and the outside of described closing in oared segrne pii is provided with top incubator;
Described housing self supporting structure comprises multiple columnae medialis, 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 the link position on described circumference joint and absorption tower and holds wet electrical dust precipitator, contact to earth in the bottom of described columnae medialis, each described main couple is arranged on a described columnae medialis; Described main couple and described auxiliary girder interval arranges and the two is interconnected transmission load; Connect accordingly in the outer end of each described auxiliary girder and a described mixed lateral column is set, and each the inner of described auxiliary girder is connected with the outer wall on absorption tower, and do not contact to earth in the bottom of described mixed lateral column, top extends upwardly to wet electrical dust precipitator place and holds wet electrical dust precipitator; Described annular truss is attached at the outer wall on absorption tower, and multiple described columnae medialis is arranged on described annular truss.
2. overhead type rectangle wet electrical dust precipitator according to claim 1, is characterized in that:
Described circumference joint is made up of triangular plate and arc limit set square, and the base of described triangular plate is connected with described rectangle wet electrical dust precipitator main paragraph, and the arc limit of described arc limit set square is connected with absorption tower;
Described circumference joint is α with the angle of absorption tower connection interface, 40 ° of < α <60 °.
3. overhead type rectangle wet electrical dust precipitator according to claim 1, is characterized in that:
Described closing in oared segrne pii comprises wallboard and is located at the reinforcement on this wallboard, and the angle of described wallboard and horizontal plane is β, 30 ° of < β <60 °;
Described wallboard is ladder type board.
4. overhead type rectangle wet electrical dust precipitator according to claim 1, is characterized in that:
Described spray irrigation system comprises spray tube layer and first jet, and described spray irrigation system is positioned at above described cathode module, and is positioned at described closing in oared segrne pii; Described first jet adopts solid atomizer, realizes spray region uniform fold, realizes the flushing of whole wet electric system;
And/or;
Described spray humidification system comprises spraying and rinses tube layer and second nozzle, described spray humidification system is located 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 be evenly humidified.
5. overhead type rectangle wet electrical dust precipitator according to claim 1, is characterized 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 comprises clamping plate, connecting plate, described water guider comprise be interconnected guiding gutter, gather tank and drainpipe; Second combined bay of described cathode module comprises anvil beam, suspention beam, suspension rod, mast, cross bar; The vertical or horizontal arranged in arrays of described cathode module, spacing is between 50 ~ 200mm; The heteropole of described anode module and described cathode module is apart from 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 adopts carbon steel, and surface is provided with glass flake layer;
Described suspension rod, mast, cross bar all adopt 2205 two-phase stainless Steel materials, and connected mode is each other bolt connection;
The material of described anode module Anodic plate, clamping plate, connecting plate is 2205 two-phase stainless Steel materials.
6. overhead type rectangle wet electrical dust precipitator according to claim 1, is characterized in that:
The inner surface of described circumference joint 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, is characterized in that:
Multiple described main couple is uniformly distributed around absorption tower, and multiple described auxiliary girder is also uniformly distributed around absorption tower.
8. overhead type rectangle wet electrical dust precipitator according to claim 1, is characterized in that:
Described deflector is rectangular flat, and in the tilted layout of described circumference joint, angle of inclination is γ, 40 ° of < γ < 60 °, and the material of described deflector is PPR;
Described uniform board is porous plate, and percent opening is between 70% ~ 90%, and material is PPR;
Described block ring is straight-flanked ring, and the hem width of this straight-flanked ring is between 150mm ~ 250mm, and material is 2205 two phase stainless steels.
9. overhead type rectangle wet electrical dust precipitator according to claim 1, is characterized in that:
Described top incubator is rectangle or circular configuration, and the number of described top incubator is multiple, and is arranged symmetrically with.
10. overhead type rectangle wet electrical dust precipitator according to claim 1, is characterized in that:
The spray tube layer of described spray irrigation system, the multiple electric field subregions according to wet electrical dust precipitator carry out subregion layout, 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420853190.7U CN204380859U (en) | 2014-12-24 | 2014-12-24 | Overhead type rectangle wet electrical dust precipitator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420853190.7U CN204380859U (en) | 2014-12-24 | 2014-12-24 | Overhead type rectangle wet electrical dust precipitator |
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| CN204380859U true CN204380859U (en) | 2015-06-10 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104437870A (en) * | 2014-12-24 | 2015-03-25 | 上海龙净环保科技工程有限公司 | Overhead type rectangular wet electric precipitator |
| CN106669972A (en) * | 2017-01-05 | 2017-05-17 | 夏杰俊 | Acid mist purifier |
| CN111545346A (en) * | 2020-06-11 | 2020-08-18 | 安徽天顺环保设备股份有限公司 | Electrostatic dust removal device for heavy metal powder and implementation method thereof |
-
2014
- 2014-12-24 CN CN201420853190.7U patent/CN204380859U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104437870A (en) * | 2014-12-24 | 2015-03-25 | 上海龙净环保科技工程有限公司 | Overhead type rectangular wet electric precipitator |
| CN104437870B (en) * | 2014-12-24 | 2017-01-18 | 上海龙净环保科技工程有限公司 | Overhead type rectangular wet electric precipitator |
| CN106669972A (en) * | 2017-01-05 | 2017-05-17 | 夏杰俊 | Acid mist purifier |
| CN111545346A (en) * | 2020-06-11 | 2020-08-18 | 安徽天顺环保设备股份有限公司 | Electrostatic dust removal device for heavy metal powder and implementation method thereof |
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Granted publication date: 20150610 Termination date: 20161224 |