CN203886668U - Wet-type electric precipitator - Google Patents
Wet-type electric precipitator Download PDFInfo
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- CN203886668U CN203886668U CN201420324233.2U CN201420324233U CN203886668U CN 203886668 U CN203886668 U CN 203886668U CN 201420324233 U CN201420324233 U CN 201420324233U CN 203886668 U CN203886668 U CN 203886668U
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- cathode line
- positive plate
- negative electrode
- electrode wire
- flooding nozzle
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- 239000012716 precipitator Substances 0.000 title claims abstract description 65
- 239000000428 dust Substances 0.000 claims abstract description 75
- 238000001467 acupuncture Methods 0.000 claims abstract description 32
- 238000011010 flushing procedure Methods 0.000 claims abstract description 16
- 238000010030 laminating Methods 0.000 claims description 9
- 238000009826 distribution Methods 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 3
- 230000005684 electric field Effects 0.000 abstract description 21
- 238000005192 partition Methods 0.000 abstract description 4
- 239000000779 smoke Substances 0.000 abstract 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 19
- 239000003546 flue gas Substances 0.000 description 19
- 238000006477 desulfuration reaction Methods 0.000 description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 10
- 229910000831 Steel Inorganic materials 0.000 description 9
- 239000010959 steel Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 8
- 230000008878 coupling Effects 0.000 description 7
- 238000010168 coupling process Methods 0.000 description 7
- 238000005859 coupling reaction Methods 0.000 description 7
- 239000007789 gas Substances 0.000 description 6
- 238000009434 installation Methods 0.000 description 6
- 229910052742 iron Inorganic materials 0.000 description 5
- 125000004122 cyclic group Chemical group 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 238000009740 moulding (composite fabrication) Methods 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 239000012212 insulator Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000001556 precipitation Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 230000023556 desulfurization Effects 0.000 description 1
- 238000010410 dusting Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- VEMKTZHHVJILDY-UHFFFAOYSA-N resmethrin Chemical compound CC1(C)C(C=C(C)C)C1C(=O)OCC1=COC(CC=2C=CC=CC=2)=C1 VEMKTZHHVJILDY-UHFFFAOYSA-N 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 238000013316 zoning Methods 0.000 description 1
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- Electrostatic Separation (AREA)
Abstract
The utility model provides a wet-type electric precipitator. The wet-type electric precipitator comprises a shell, multiple tubular anode plates which are distributed in a manner of being concentric and in different diameters, multiple cathode wire loops which are arranged at intervals with the tubular anode plates, anode plate flushing nozzles and cathode wire flushing nozzles; each cathode wire loop comprises quaternary tip end cathode wires, secondary tip end cathode wires and acupuncture tip end cathode wires; each cathode wire loop is cyclically arranged by adopting the following way: the quaternary tip end cathode wire, the acupuncture tip end cathode wire, the secondary tip end cathode wire and the acupuncture tip end cathode wire; the anode plate flushing nozzles are arranged ringwise and arranged above the tubular anode plates; the cathode wire flushing nozzles are arranged ringwise and are arranged above the anode plate flushing nozzles. Due to the adoption of the wet-type electric precipitator provided by the utility model, the effective dust collection area of each anode plate can be increased, a dead zone of smoke can be effectively reduced, and the uniform partition in an electric field is realized while the high-efficiency and stable operation of the wet-type electric precipitator is guaranteed.
Description
Technical field
The utility model relates to dedusting field, refers to particularly a kind of wet electrical dust precipitator.
Background technology
Along with improving constantly that domestic Thermal Power Generation Industry environment protection emission requires, the requirement of flue gas ash removal efficiency is also further improved, traditional dedusting method, as dust removal with machine, bag-type dusting, electric precipitation, the dedusting of electricity bag cannot meet emission request.Wet-esp, as a kind of high-effective dust-removing technology, is extensively promoted.Wet-esp is the extension of dry electric precipitation technology, and compared with traditional electric precipitation, this technology is optimized purge mode, and wet-esp adopts the water film dedusting of polar board surface, without reentrainment of dust, better to the applicability of dust.
At present, wet-esp has two kinds of arrangements, and one is to be arranged in existing FGD tower, is called built-in wet electrical dust precipitator; Another kind is to be placed between FGD outlet and chimney, is called external wet electrical dust precipitator.Built-in wet electrical dust precipitator occupation of land is little, flow field is excellent, efficiency is high, reduced investment, is widely used.
Because built-in wet electrical dust precipitator is placed in existing desulfuration absorbing tower,, there is following problem in traditional printed line formula arrangement (plate is surface plate), has had a strong impact on efficiency of dust collection, the installation and maintenance of built-in wet electrical dust precipitator:
1. effectively collect specific collection area relatively little;
2. traditional printed line formula utmost point formula formula, tower wall place blind area area is larger, is about 8%～10%;
3. installation and maintenance difficulty.
Traditional built-in wet electrical dust precipitator, by increasing electric field number, increases pole plate height etc., can enlarge markedly effective specific collection area, but along with electric field height increases, the corresponding increase of load-bearing on absorption tower, and the basic weighted design allowance on absorption tower has limited the high altitude that adds of wet electrical dust precipitator; Meanwhile, the blind area occurring in traditional printed line formula arrangement, generally adopts shutoff mode to process, and has caused like this flue gas flow rate in electric field region to increase, and higher than design load, has affected efficiency of dust collection; Further, traditional printed line formula mounting means lifting difficulty, the stressed uniformity of brace summer is poor, and it is more difficult that switched-mode power supply is realized, maintenance difficulty.
How to optimize the anode and cathode arrangement of built-in wet electrical dust precipitator, improve flue gas circulation interface utilization rate, reduce blind area; Realize even subregion in electric field simultaneously, ensure the operation of wet electrical dust precipitator efficient stable; Facilitating further installation and maintenance is research emphasis of built-in wet-esp.
Utility model content
The purpose of this utility model is to provide a kind of wet electrical dust precipitator, can increase effective dust-collecting area of positive plate, effectively reduces flue gas blind area, realizes even subregion in electric field simultaneously, ensures the operation of wet electrical dust precipitator efficient stable.
The technical scheme that the utility model provides is as follows:
A kind of wet electrical dust precipitator, comprising:
Housing, multiple tubular positive plate, multiple negative electrode wire loop, positive plate flooding nozzle, cathode line flooding nozzle;
Described multiple tubular positive plate is concentric reducing and distributes;
The cathode line that described negative electrode wire loop is annular distribution, itself and described tubular positive plate interval arrange; And each described negative electrode wire loop is placed in the center of the circular passage between two adjacent described tubular positive plates; And multiple described negative electrode wire loops are concentric reducing and distribute, and with concentric setting of described tubular positive plate;
Cathode line in described negative electrode wire loop comprises level Four tip cathode line, secondary tip cathode line, the most advanced and sophisticated cathode line of acupuncture, and each negative electrode wire loop comprises multiple cathode line; In each described negative electrode wire loop, cathode line circulates and arranges in the following way: level Four tip cathode line, the most advanced and sophisticated cathode line of acupuncture, secondary tip cathode line, the most advanced and sophisticated cathode line of acupuncture;
Described positive plate flooding nozzle is arranged ringwise, is arranged in parallel, and is positioned at the top at center, described positive plate circular passage with the cross section, circular passage of positive plate formation; Nozzle adopts hollow atomizer, realizes the flushing of positive plate plate face;
Described cathode line flooding nozzle is arranged ringwise, and is positioned at the top of described positive plate flooding nozzle; Nozzle adopts solid atomizer, realizes spray region uniform fold.Distance between further preferably, adjacent described tubular positive plate equates.
Further preferably, outermost described tubular positive plate and the laminating of described housing are arranged, and the gap position of the two are carried out to bottom shutoff.
Further preferably, the bottom of described housing is provided with air inlet, and top is provided with gas outlet.
Further preferably, the described tubular positive plate of the vertical sensing in the tip of cathode line.
Further preferably, described positive plate flooding nozzle is the annular spread of multiple levels, and the described positive plate flooding nozzle distributing in each annular is towards one or more adjacent described tubular positive plate settings;
When in the time that multiple adjacent described tubular positive plates distribute, described positive plate flooding nozzle in each annular towards multiple adjacent described tubular positive plate form Yi Ge district, and the area summation of the multiple described tubular positive plate in each district all equates with the area summation of the multiple described tubular positive plate in other arbitrary districts.
Further preferably, the multiple described tubular positive plate in each district is fixedly connected with, and becomes one.
Further preferably, multiple described negative electrode wire loops are concentric reducing and distribute, and with concentric setting of described tubular positive plate; And each described negative electrode wire loop is placed in the center of the circular passage between two adjacent described tubular positive plates; And the distance of adjacent described cathode line interannular equates.
Further preferably, described cathode line flooding nozzle is the annular spread of a level, and described cathode line flooding nozzle arranges toward all negative electrode wire loops respectively.
Further preferably, described cathode line flooding nozzle is the annular spread of multiple levels, and the described cathode line flooding nozzle distributing on each circulating line is towards one or more adjacent negative electrode wire loop settings; When in the time that multiple adjacent negative electrode wire loops arrange, described cathode line flooding nozzle in each annular towards multiple adjacent described negative electrode wire loop form Yi Ge district, and the cathode line number summation on the multiple adjacent described negative electrode wire loop in each district, all equates with the cathode line number summation on the multiple described negative electrode wire loop in other arbitrary districts.
Further preferably, in the time that described cathode line flooding nozzle is the annular spread of multiple levels, the multiple described negative electrode wire loop in each district is fixedly connected with, and becomes one.
Meanwhile, described cathode line also can be arranged by other suitable method.
A kind of wet electrical dust precipitator providing by the utility model, can bring following at least one beneficial effect:
1. can increase effective dust-collecting area of positive plate.Because traditional anode printed line formula is arranged, positive plate is dull and stereotyped, cannot ensure the control of dust between its plate; And positive plate of the present utility model is tubular, its dust-collecting area is ring-type, the scope of surrounding is larger, traditional dull and stereotyped positive plate can be contained less than scope also include, simultaneously due to negative electrode wire loop and tubular positive plate interval setting (coupling arranges), make tubular positive plate of the present utility model all can, in the region of discharge of cathode line, also increase effective dust-collecting area everywhere.As calculated, under equal height, the dull and stereotyped positive plate of effective control of dust Area Ratio of tubular positive plate increases by 5% left and right, can on the basis of height that does not increase wet electrical dust precipitator, enlarge markedly effective dust-collecting area like this, is conducive to improve efficiency of dust collection.
2. can effectively reduce flue gas blind area.The tower wall link position of traditional positive plate and desulfuration absorbing tower leaves blind area, affects efficiency of dust collection.And the tubular positive plate that the utility model provides is in use, can pass through positive plate and the seamless laminating setting of columniform desulfuration absorbing tower wall of inner side, so just there is not flue gas blind area; The housing of outermost tubular positive plate and wet electrical dust precipitator laminating simultaneously arranges, and the gap position of the two is carried out to bottom shutoff (because the air inlet of wet electrical dust precipitator is located at bottom), so also can reduce further flue gas blind area, improve efficiency of dust collection.
3. in pair electric field, carry out efficient zoned, convenient control.The utility model can carry out efficient zoned according to the number of the dust-collecting area of positive plate or cathode line to wet electrical dust precipitator internal electric field region, multiple regions after subregion are to start outside annular section of arranging successively from the inner side of wet electrical dust precipitator, each region forms by one or more adjacent tubular positive plates and together with the negative electrode wire loop of coupling, and the dust-collecting area summation of the multiple positive plates in each region equate or substantially equate (substantially equate can be understood as between the positive plate dust-collecting area summation in zones of different and have less difference, this difference range is 0-5%), or cathode line number summation in each region equates or substantially equates (substantially equate can be understood as between the cathode line number summation in zones of different have less difference, this difference range is 0-5%).Dust-collecting area in each like this region can be thought basic equating, can be to its subregion control, and the setting of power supply and flooding nozzle all can subregion control, and it is more convenient to use.Meanwhile, the multiple positive plates in each region can be fixedly connected with, and are integrated into a module; Negative electrode wire loop in each region also can be fixedly connected with, and is integrated into a module, so also can realize modularization and produce.
Brief description of the drawings
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail:
Fig. 1 is the side view of a kind of embodiment of the utility model wet electrical dust precipitator;
Fig. 2 is the top view of a kind of embodiment of the utility model wet electrical dust precipitator;
Fig. 3 is the top view of a kind of embodiment of tubular positive plate coupled arrangement of the present utility model;
Fig. 4 is the structural representation of a kind of embodiment of level Four tip cathode line of the present utility model;
Fig. 5 is the structural representation of a kind of embodiment of the most advanced and sophisticated cathode line of acupuncture of the present utility model;
Fig. 6 is the structural representation of a kind of embodiment of secondary tip cathode line of the present utility model;
Fig. 7 is the structural representation of the most advanced and sophisticated form of the different cathode line of the utility model.
Drawing reference numeral explanation:
1-tubular positive plate, 2-negative electrode wire loop, 3-discharge tip, 4-cathode line flooding nozzle, 5-positive plate flooding nozzle, 6-positive plate hanging beam, 7-cathode line wire frame, 2 (1)-level Four tip cathode lines, the most advanced and sophisticated cathode line of 2 (2)-acupunctures, 2 (3)-secondary tip cathode lines, 3 (1)-level Four tips, 3 (2)-acupuncture tips, 3 (3)-secondary tips.
Detailed description of the invention
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
In embodiment mono-of the present utility model, wet electrical dust precipitator comprises: housing, multiple tubular positive plate, multiple negative electrode wire loop, positive plate flooding nozzle, cathode line flooding nozzle; Described multiple tubular positive plate is concentric reducing and distributes; The cathode line that described negative electrode wire loop is annular distribution, itself and described tubular positive plate interval arrange; Described positive plate flooding nozzle is arranged ringwise, is arranged in parallel, and is positioned at the top at center, described positive plate circular passage with the cross section, circular passage of positive plate formation; Nozzle adopts hollow atomizer, and regulates by height, realizes the flushing of positive plate plate face; Described cathode line flooding nozzle is arranged ringwise, and is positioned at the top of described positive plate flooding nozzle; Nozzle adopts solid atomizer, regulates by height and nozzle angle, realizes spray region uniform fold.With reference to Fig. 1, Fig. 2, Fig. 3, multiple tubular positive plates 1 are concentric reducing and distribute, and preferably, in the time of concrete use, arrange with desulfuration absorbing tower concentric, can be beneficial to like this and realize the tubular positive plate of inner side and the seamless laminating of desulfuration absorbing tower wall, realize and effectively reduce the blind area between wet electrical dust precipitator and desulfuration absorbing tower.Multiple negative electrode wire loops 2 arrange (coupling arranges) with multiple tubular positive plates 1 interval, and cathode line coordinates the shape of tubular positive plate also to arrange in the form of a ring, can effectively mate positive plate and cathode line, ensures the electrion effect of electric field.Meanwhile, for rinsing the positive plate flooding nozzle 5 of dust on positive plate and being arranged at the top of tubular positive plate 1 for rinsing the cathode line flooding nozzle 4 of cathode line, be convenient to dust and be directly rinsed the dust collection that falls into below.And due to positive plate and cathode line all ringwise, so accordingly, positive plate flooding nozzle and cathode line flooding nozzle also all supporting being set to arrange ringwise, like this can antianode plate and cathode line rinse preferably.And to rinse frequency less due to cathode line, and simultaneously cathode line absolute altitude higher than positive plate, so, cathode line flooding nozzle 4 can be arranged to the top of positive plate flooding nozzle 5.Cathode line in negative electrode wire loop adopts level Four tip cathode line, the most advanced and sophisticated cathode line of acupuncture, these three kinds of cathode line of secondary tip cathode line simultaneously, because the point discharge of level Four tip cathode line, secondary tip cathode line is stable, but spacing at the same level is had relatively high expectations; And acupuncture line discharge inception voltage is higher; Adopt three kinds of different size cathode line simultaneously, can meet electric field region high voltage, the limited requirement of distance simultaneously.Each negative electrode wire loop comprises above-mentioned multiple cathode line, in the time arranging, can preferentially select following mode to circulate and arrange: level Four tip cathode line, the most advanced and sophisticated cathode line of acupuncture, secondary tip cathode line, the most advanced and sophisticated cathode line of acupuncture; Level Four tip cathode line, the most advanced and sophisticated cathode line of acupuncture, secondary tip cathode line, the most advanced and sophisticated cathode line of acupuncture;Adopt this cycle arrangement mode, reduced electric discharge impact at the same level, ensured discharge effect.But other arrangement modes also should be included protection domain of the present utility model in, for example level Four tip cathode line, secondary tip cathode line, the most advanced and sophisticated cathode line of acupuncture, level Four tip cathode line, secondary tip cathode line, the most advanced and sophisticated cathode line of acupuncture, And other arrangement modes.Particularly, level Four tip can be with reference to shown in 3 (1) in Fig. 4 and Fig. 7, and acupuncture tip can be with reference to shown in 3 (2) in Fig. 5 and Fig. 7, and secondary tip can be with reference to shown in 3 (3) in Fig. 6 and Fig. 7.Described cathode line power supply mode, adopts block supply mode, and each region (after subregion, forming Dan district) powers separately, realizes power supply area control.
Preferably, with reference to Fig. 1, Fig. 2, Fig. 3, the distance that adjacent tubular positive plate is 1 equates, can be with reference in figure, in every adjacent tubular positive plate, positive plate place, outside diameter of a circle equates with the difference of positive plate place, inner side diameter of a circle, can effectively ensure that like this wet electrical dust precipitator inside is by positive plate uniform distribution, effectively ensure that electric field is uniformly distributed, be also convenient to wet electrical dust precipitator inside and the even subregion control of whole electric field simultaneously.This distributed architecture also can be applicable in negative electrode wire loop, and with reference to Fig. 1, Fig. 2, multiple negative electrode wire loops 2 are concentric reducing and distribute, and arrange with tubular positive plate 1 concentric (center of circle); And each negative electrode wire loop is placed in the center of the circular passage between two adjacent tubular positive plates, the distance between the tubular positive plate of each negative electrode wire loop and its both sides equates; And the distance of adjacent described cathode line interannular is equal, and multiple negative electrode wire loops 2 are equally spaced, and can further effectively ensure that electric field is uniformly distributed like this, be also convenient to wet electrical dust precipitator inside and the even subregion control of whole electric field simultaneously.Meanwhile, the vertical tubular positive plate that points to of the discharge tip 3 of cathode line, can ensure that electric field is the strongest, and dust is easier to charged and is adsorbed on positive plate.
Preferably, in multiple tubular positive plates, the laminating of the housing of outermost tubular positive plate and wet electrical dust precipitator is arranged, and the gap position of the two is carried out to bottom shutoff.Because the tubular positive plate outside in outside no longer arranges negative electrode wire loop, so outside tubular positive plate and housing laminating layout can greatly be reduced to flue gas blind area, but inside this structural requirement housing, shape is preferably identical with outside tubular positive plate shape, for the face of cylinder, to realize better laminating.And flue gas flows from bottom to top, in order further to avoid flue gas to enter the blind area, gap between outside tubular positive plate and housing, the gap position of the two is carried out to bottom shutoff, avoid flue gas to enter.
Preferably, the bottom of housing arranges air inlet, and top sets out gas port, can utilize the bottom-up mobile characteristic of flue gas, and structure is more convenient for arranging.
Preferably, positive plate flooding nozzle is the annular spread of multiple levels, and the positive plate flooding nozzle distributing in each annular is towards one or more adjacent tubular positive plate settings; When in the time that multiple adjacent tubular positive plates distribute, positive plate flooding nozzle in each annular towards multiple adjacent tubular positive plate form Yi Ge district, and the area summation of multiple tubular positive plates in each district all equates with the area summation of multiple tubular positive plates in other arbitrary districts.Such structure setting is the even subregion in order to realize wet electrical dust precipitator inside, produce, and the corresponding positive plate flooding nozzle in each region is separate to carry out subregion control and modularization.The positive plate flooding nozzle of zones of different is arranged on different cyclic flushing pipe roads, and multiple circulating line is horizontally placed on the top of tubular positive plate.Positive plate flooding nozzle on each cyclic flushing pipe road arranges towards one or more adjacent tubular positive plates, and when towards multiple adjacent tubular positive plate, the region forming between the plurality of tubular positive plate is with regard to Wei Yige district.In the time of subregion, the area summation of multiple tubular positive plates in each district all equates or substantially equates (substantially equate can be understood as between the positive plate dust-collecting area summation in zones of different have less difference, this difference range is 0-5%).Preferably, carry out after above-mentioned subregion, multiple tubular positive plates in each district can be fixedly connected with by modes such as suspension, welding, become one or a module, can realize like this modularization and produce and assemble.
Preferably, cathode line flooding nozzle also can adopt the setting of aforesaid way subregion, and Ye Kedan district (not subregion) arranges simultaneously.In the time that cathode line flooding nozzle list district arranges, cathode line flooding nozzle is the annular spread of a level, and all cathode line flooding nozzles are respectively toward all negative electrode wire loop settings, so just can rinse all negative electrode wire loops.In the time that cathode line flooding nozzle subregion arranges, cathode line flooding nozzle is the annular spread of multiple levels, and the described cathode line flooding nozzle distributing on each circulating line is towards one or more adjacent negative electrode wire loop settings; When in the time that multiple adjacent negative electrode wire loops arrange, described cathode line flooding nozzle in each annular towards multiple adjacent described negative electrode wire loop form Yi Ge district, and the cathode line number summation on the multiple adjacent described negative electrode wire loop in each district, all equates with the cathode line number summation on the multiple described negative electrode wire loop in other arbitrary districts.The structure setting of subregion is also the even subregion in order to realize wet electrical dust precipitator inside, produce, and the corresponding cathode line flooding nozzle in each region is separate to carry out subregion control and modularization.The cathode line flooding nozzle of zones of different is arranged on different cyclic flushing pipe roads, and multiple circulating line is horizontally placed on the top of tubular positive plate, and cathode line flooding nozzle is arranged at the top of positive plate flooding nozzle simultaneously.Cathode line flooding nozzle on each cyclic flushing pipe road arranges towards one or more adjacent negative electrode wire loops; When towards multiple adjacent negative electrode wire loop, and the region forming between multiple tubular positive plates of being coupled of the plurality of negative electrode wire loop is with regard to Wei Yige district.In the time of subregion, cathode line number summation in each region equates or substantially equates (substantially equate can be understood as between the cathode line number summation in zones of different have less difference, this difference range is 0-5%).Preferably, carry out after above-mentioned subregion, multiple negative electrode wire loops in each district can be fixedly connected with, become one or a module, can realize like this modularization and produce and assemble.
The situation of other subregions or not subregion, all should think as long as can realize the flushing of two kinds of flooding nozzle antianode plates and cathode line the scope that the utility model is protected.
In embodiment of the present utility model, cathode line can adopt level Four tip cathode line (with reference to the level Four tip cathode line 2 (1) in Fig. 4), the most advanced and sophisticated cathode line of acupuncture (with reference to the most advanced and sophisticated cathode line 2 of the acupuncture in Fig. 5
(2)), in secondary tip cathode line (with reference to the secondary tip cathode line 2 (3) in Fig. 6) at least two kinds, and in each negative electrode wire loop, only include a kind of cathode line in above-mentioned.Preferred embodiment of the present utility model is to adopt three kinds of above-mentioned cathode line simultaneously, because the point discharge of level Four tip cathode line, secondary tip cathode line is stable, but spacing at the same level is had relatively high expectations; And acupuncture line discharge inception voltage is higher; Adopt three kinds of different size cathode line simultaneously, can meet electric field region high voltage, the limited requirement of distance simultaneously.Each negative electrode wire loop comprises above-mentioned multiple cathode line, in the time arranging, can preferentially select following mode to circulate and arrange: level Four tip cathode line, the most advanced and sophisticated cathode line of acupuncture, secondary tip cathode line, the most advanced and sophisticated cathode line of acupuncture; Level Four tip cathode line, the most advanced and sophisticated cathode line of acupuncture, secondary tip cathode line, the most advanced and sophisticated cathode line of acupuncture;Adopt this cycle arrangement mode, reduced electric discharge impact at the same level, ensured discharge effect.But other arrangement modes also should be included protection domain of the present utility model in, for example level Four tip cathode line, secondary tip cathode line, the most advanced and sophisticated cathode line of acupuncture, level Four tip cathode line, secondary tip cathode line, the most advanced and sophisticated cathode line of acupuncture, And other arrangement modes.Particularly, level Four tip can be with reference to shown in 3 (1) in Fig. 4 and Fig. 7, and acupuncture tip can be with reference to shown in 3 (2) in Fig. 5 and Fig. 7, and secondary tip can be with reference to shown in 3 (3) in Fig. 6 and Fig. 7.
The internal structure of wet electrical dust precipitator of the present utility model, can be in the following way in the time of assembling and production.Tubular positive plate is fixed on described housing by first fixed structure assembly; Cathode line is fixed on described housing by the second fixed structure assembly.Wherein scheme is: first fixed structure assembly comprises the positive plate hanging beam (with reference to the positive plate hanging beam 6 in Fig. 1) being fixed on described housing, the angle steel being connected with described hanging beam and the band iron being connected with described angle steel, and described band iron is connected with described tubular positive plate by bolt; The second fixed structure assembly comprises by support insulator and is hung on the cathode beam in described housing, the cathode line wire frame (with reference to the cathode line wire frame 7 in Fig. 1) being connected with described cathode beam by angle steel, and described cathode line wire frame is loop configuration, described cathode line between adjacent described tubular positive plate is distributed on described cathode line wire frame ringwise, and the described tubular positive plate of the vertical sensing in the tip of described cathode line.Particularly, first (1) tubular positive plate is connected with circular band iron, on tubular positive plate, is evenly equipped with locating hole, offers and locating hole fixing hole one to one, and connect by bolt penetration hole on circular band iron.Circular band iron is connected on angle steel again, and angle steel is further connected with hanging beam, and hanging beam is fixedly installed on housing, so just tubular positive plate can be positioned to enclosure interior.The two ends up and down of tubular positive plate all can adopt aforesaid way to be positioned enclosure interior.Meanwhile, when mounted, tubular positive plate suppending hole is all set up and down, and the line of two suppending holes crosses the axis of tubular positive plate, can ensure that like this tubular positive plate is stressed evenly, ensured polar board surface flatness in installation process.Equidistant uniform locating hole on tubular positive plate, can effectively ensure positive plate uniform stressed, can not produce torsional forces, causes positive plate torsional deformation.Meanwhile, bolt connects can be by adjusting pad height, and the degree of tightening of bolt, controls the flatness of the whole plane of positive plate, also reduced in running the local corrosions such as spot corrosion, the service life that has extended pole plate.(2) cathode line of annular distribution is installed on the cathode line wire frame of an annular, and this cathode line wire frame is positioned on cathode beam by angle steel, and this cathode beam is hung on enclosure interior by support insulator.
Preferably, tubular 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.
Should think, other modes that positive plate of the present utility model and cathode line can be installed on to the enclosure interior of wet electrical dust precipitator also should belong to protection domain of the present utility model.
The utility model also provides a kind of using method that comprises aforesaid wet electrical dust precipitator simultaneously, comprising:
(1) described wet electrical dust precipitator is carried out to subregion, wherein, each district comprises the region that adjacent multiple described tubular positive plate forms, and the area summation of the multiple described tubular positive plate in each district all equates with the area summation of the multiple described tubular positive plate in other arbitrary districts, and the described tubular positive plate in each district uses same group of positive plate flooding nozzle, and positive plate flooding nozzle on the same group is not controlled respectively.
(2) described wet electrical dust precipitator is carried out to subregion, wherein, each district comprises the region that adjacent multiple described tubular positive plate forms, and the number summation of the described cathode line in each district all equates with the number summation of the described cathode line in other arbitrary districts, and the described cathode line in each district is used same group of cathode line flooding nozzle, and to cathode line flooding nozzle Collaborative Control on the same group not or control respectively.
Wherein, the area summation of the tubular positive plate in each district equates or substantially equates (substantially equate can be understood as between the positive plate dust-collecting area summation in zones of different have less difference, this difference range is 0-5%); Cathode line number summation in each region equates or substantially equates (substantially equate can be understood as between the cathode line number summation in zones of different have less difference, this difference range is 0-5%).
Preferably, using method also comprises: the wet electrical dust precipitator the most described tubular positive plate of inner side and the tower wall seamless of desulfuration absorbing tower is fitted, and so just can effectively avoid flue gas blind area, and without separately establishing blind area baffle plate, reduce respective material investment.
The wet electrical dust precipitator that the utility model provides in use, can be increased existing desulfuration absorbing tower, and wet electrical dust precipitator is set adding eminence.The center that adds eminence is provided with a cylinder, and the wet electrical dust precipitator tubular positive plate of inner side arranges with this cylinder is concentric, and the two seamless laminating setting.For further dead zone-eliminating, can carry out shutoff in the bottom of the two position of fitting.The air inlet of wet electrical dust precipitator is located at bottom, and top is located in gas outlet.
In a full implementation example of the present utility model, the Radial Coupling wet electrical dust precipitator that the utility model is designed, comprise a kind of novel positive plate form, its special character is: positive plate is tubular, when layout, arranges (can increase desulfuration absorbing tower, and wet electrical dust precipitator is located at and is increased part) with the concentric reducing of original desulfuration absorbing tower, agree with tower wall seamless gap, smokeless blind area, without separately establishing blind area baffle plate, has reduced respective material investment; And cathode line also coordinates tubular positive plate to distribute ringwise, it is negative electrode wire loop; Multiple positive plate Radial Couplings are arranged, multiple negative electrode wire loop Radial Couplings layouts, and positive plate and also Radial Coupling layout of negative electrode wire loop, be easy to realize subregion in tower like this, is convenient to subregion control.Radial arrangement positive plate and radial arrangement cathode line can realize completely independently partition space, interregionally can be realized completely and to be cut off by positive plate, do not have cross influence and flue gas crossfire phenomenon; And adopt the arrangement of independent partitions, supporting subregion positive plate flooding nozzle and pipeline, cathode line flooding nozzle and the pipeline of arranging, be conducive to positive plate, cathode line in flushing process, flushing water is sprayed to the electric field region of respective partition by perfection, shower water can not impact adjacent electric field region, has ensured the asynchronous zoning high-efficiency washing of wet electrical dust precipitator; While flushing, wet electrical dust precipitator voltage is stable simultaneously, has ensured the efficient stable operation of wet electrical dust precipitator; And cathode and anode reducing coupled arrangement, subregion is easy to realize, and can carry out multistage subregion to electric field region.
In the time producing, tubular positive plate of the present utility model, negative electrode wire loop adopt modularization preparation method, and the negative electrode wire loop of each subregion is combined as a whole by modes such as suspension, welding; The positive plate of each subregion, according to tower diameter, is made integral module according to design, comprises and connects bolt, brace summer etc., is combined as a whole by modes such as bonding, welding, pressure formings; The suspention of negative electrode wire loop is installed on center between adjacent positive plate, is prepared into piece, is arranged in tower; Pole plate, polar curve material source that the utility model is selected are extensive, with low cost, and processing is convenient, are easy to promote.
When mounted, shown in Fig. 1, carry out the installation of wet electrical dust precipitator of the present utility model.The housing of wet electrical dust precipitator is connected with existing absorbing tower wall, and junction adopts reinforcement to reinforce; Reducing tubular positive plate hangs in housing by hanging beam, and hanging beam is supported on housing; The arrangement of reducing tubular positive plate is to arrange with distance with one heart, and between the plate of adjacent anode plate, spacing is identical; Between reducing positive plate and hanging beam, be connected by location angle steel, connected mode is welding and suspention, and reducing positive plate positioning bolt hole is equally spaced, and adopts bolt that reducing positive plate is connected with location angle steel, and the upper and lower two ends of positive plate all adopt this mode location and installation; Cathode line comprises three kinds of the most advanced and sophisticated cathode line of level Four tip cathode line, secondary tip cathode line, acupuncture; Cathode line is arranged in center between the plate of positive plate, its most advanced and sophisticated vertical positive plate that points to; Cathode line adopts cathode line wire frame location fixing, and cathode line wire frame is connected by angle steel with cathode beam, and cathode beam is hung in wet electrical dust precipitator housing by support insulator; Cathode line between positive plate plate ringwise distribute, be negative electrode wire loop, and cathode line be periphery put adopt xenogenesis be equidistantly evenly arranged, xenogenesis represents that adjacent negative electrode wire loop is the different cathode line of diameter, is equidistantly that the centre-to-centre spacing of adjacent negative electrode wire loop is identical; Flooding nozzle comprises two kinds: upper strata is cathode line flooding nozzle, and lower floor is positive plate flooding nozzle; Nozzle Wei Dan district, upper strata arranges or subregion is arranged; Lower floor's nozzle is that subregion is arranged, controls separately; The vertex of a cone and flue, installation are finally installed at wet electrical dust precipitator top.
In the time of concrete operation, power-plant flue gas, after desulfurization section and mechanical demister, enters in wet electrical dust precipitator, and flue gas enters from wet electrical dust precipitator bottom, after wet electrical dust precipitator dedusting, leaves from top, enters chimney through flue, enters atmosphere.After wet electrical dust precipitator energising, the electronics that wire is emitted is mobile to anodal (positive plate) rapidly, clash into and make gas molecule ionization with gas molecule, the Ionized process of gas molecule produces again a large amount of electronics (avalanche process), when flue gas passes through electric field region, subparticle in flue gas, charged after drop and electron collision, under electric field force effect, subparticle after charged, the motion of drop anode, particle, after drop strikes on anode, discharge electric charge, and particle, drop is enriched on positive plate, along pole plate gravity flow and under, make the subparticle in flue gas, drop is removed.
It should be noted that all independent assortments as required of above-described embodiment.The above is only preferred embodiment of the present utility model; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of 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 (7)
1. a wet electrical dust precipitator, is characterized in that, comprising:
Housing, multiple tubular positive plate, multiple negative electrode wire loop, positive plate flooding nozzle, cathode line flooding nozzle;
Described multiple tubular positive plate is concentric reducing and distributes;
The cathode line that described negative electrode wire loop is annular distribution, itself and described tubular positive plate interval arrange; And each described negative electrode wire loop is placed in the center of the circular passage between two adjacent described tubular positive plates; And multiple described negative electrode wire loops are concentric reducing and distribute, and with concentric setting of described tubular positive plate;
Cathode line in described negative electrode wire loop comprises the most advanced and sophisticated cathode line of level Four tip cathode line, secondary tip cathode line, acupuncture, and each negative electrode wire loop comprises the multiple cathode line in above-mentioned; In each described negative electrode wire loop, cathode line circulates and arranges as follows: level Four tip cathode line, the most advanced and sophisticated cathode line of acupuncture, secondary tip cathode line, the most advanced and sophisticated cathode line of acupuncture;
Described positive plate flooding nozzle is arranged ringwise, is arranged in parallel, and is positioned at the top at center, described positive plate circular passage with the cross section, circular passage of positive plate formation; Nozzle adopts hollow atomizer, realizes the flushing of positive plate plate face;
Described cathode line flooding nozzle is arranged ringwise, and is positioned at the top of described positive plate flooding nozzle; Nozzle adopts solid atomizer, realizes spray region uniform fold.
2. wet electrical dust precipitator according to claim 1, is characterized in that:
Distance between adjacent described tubular positive plate equates;
And/or;
Outermost described tubular positive plate and the laminating of described housing are arranged, and the gap position of the two are carried out to bottom shutoff;
And/or;
The bottom of described housing is provided with air inlet, and top is provided with gas outlet;
And/or;
The described tubular positive plate of the vertical sensing in tip of cathode line.
3. wet electrical dust precipitator according to claim 1, is characterized in that:
Described positive plate flooding nozzle is the annular spread of multiple levels, and the described positive plate flooding nozzle distributing in each annular is towards one or more adjacent described tubular positive plate settings;
When in the time that multiple adjacent described tubular positive plates distribute, described positive plate flooding nozzle in each annular towards multiple adjacent described tubular positive plate form Yi Ge district, and the area summation of the multiple described tubular positive plate in each district all equates with the area summation of the multiple described tubular positive plate in other arbitrary districts.
4. wet electrical dust precipitator according to claim 3, is characterized in that:
The multiple described tubular positive plate in each district is fixedly connected with, and becomes one.
5. wet electrical dust precipitator according to claim 1, is characterized in that:
Multiple described negative electrode wire loops are concentric reducing and distribute, and with concentric setting of described tubular positive plate;
And each described negative electrode wire loop is placed in the center of the circular passage between two adjacent described tubular positive plates;
And the distance of adjacent described cathode line interannular equates.
6. wet electrical dust precipitator according to claim 5, is characterized in that:
Described cathode line flooding nozzle is the annular spread of a level, and described cathode line flooding nozzle arranges toward all negative electrode wire loops respectively;
Or;
Described cathode line flooding nozzle is the annular spread of multiple levels, and the described cathode line flooding nozzle distributing on each circulating line is towards one or more adjacent negative electrode wire loop settings; When in the time that multiple adjacent negative electrode wire loops arrange, described cathode line flooding nozzle in each annular towards multiple adjacent described negative electrode wire loop form Yi Ge district, and the cathode line number summation on the multiple adjacent described negative electrode wire loop in each district, all equates with the cathode line number summation on the multiple described negative electrode wire loop in other arbitrary districts.
7. wet electrical dust precipitator according to claim 6, is characterized in that:
In the time that described cathode line flooding nozzle is the annular spread of multiple levels, the multiple described negative electrode wire loop in each district is fixedly connected with, and becomes one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420324233.2U CN203886668U (en) | 2014-06-18 | 2014-06-18 | Wet-type electric precipitator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420324233.2U CN203886668U (en) | 2014-06-18 | 2014-06-18 | Wet-type electric precipitator |
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| CN203886668U true CN203886668U (en) | 2014-10-22 |
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| CN201420324233.2U Expired - Lifetime CN203886668U (en) | 2014-06-18 | 2014-06-18 | Wet-type electric precipitator |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104991146A (en) * | 2015-07-20 | 2015-10-21 | 国电环境保护研究院 | Wet-type electrostatic dust collector electrode assembly volt-ampere characteristic experiment table |
| CN105268557A (en) * | 2015-11-16 | 2016-01-27 | 辽宁达斯特科技开发有限公司 | High-voltage electrostatic dust collector |
| CN108738315A (en) * | 2017-02-17 | 2018-11-02 | 美的集团股份有限公司 | Electrostatic precipitator and airhandling equipment |
| CN113843045A (en) * | 2021-09-17 | 2021-12-28 | 北京中新国能环保科技有限公司 | Cathode and anode configuration structure with wet spraying structure |
-
2014
- 2014-06-18 CN CN201420324233.2U patent/CN203886668U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104991146A (en) * | 2015-07-20 | 2015-10-21 | 国电环境保护研究院 | Wet-type electrostatic dust collector electrode assembly volt-ampere characteristic experiment table |
| CN105268557A (en) * | 2015-11-16 | 2016-01-27 | 辽宁达斯特科技开发有限公司 | High-voltage electrostatic dust collector |
| CN108738315A (en) * | 2017-02-17 | 2018-11-02 | 美的集团股份有限公司 | Electrostatic precipitator and airhandling equipment |
| CN113843045A (en) * | 2021-09-17 | 2021-12-28 | 北京中新国能环保科技有限公司 | Cathode and anode configuration structure with wet spraying structure |
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