CN105363558A - Polar plate for wet type electrostatic precipitator - Google Patents
Polar plate for wet type electrostatic precipitator Download PDFInfo
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- CN105363558A CN105363558A CN201510894703.8A CN201510894703A CN105363558A CN 105363558 A CN105363558 A CN 105363558A CN 201510894703 A CN201510894703 A CN 201510894703A CN 105363558 A CN105363558 A CN 105363558A
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Abstract
The invention relates to a polar plate for a wet type electrostatic precipitator. The polar plate comprises a current sharing tube (1) and a collecting plate (2) and has double characteristics of balanced distribution of washing water flows and uniform coverage of a polar plate water film. The polar plate is characterized in that the current sharing tube (1) is arranged at the top part of the collecting plate (2); the collecting plate (2) has a structure of double-layer symmetric concave-convex ripple surface and is shaped through a laser welding and bulging technology; concave surface welding spots on the collecting plate (2) are uniformly distributed in rows and lines in a stagger manner; with the combination of a non-spraying type polar plate washing mode such as dripping spraying or overflow spraying and the like and the adoption of the structure of the polar plate, flushing water can be uniformly distributed onto the two surfaces of the collecting plate (2) through the current sharing tube (1), and influence of the gravity to the water flows is overcome by utilizing the surface tension of water, so that a uniform washing water film is acquired. The polar plate for the wet type electrostatic precipitator has the remarkable advantages of balanced distribution of the water flows, uniform water film, good washing effect, stable electric field running and purification efficiency, great increase of rigidity and effective height of the polar plate, saved occupied places and investment and the like.
Description
Technical field
The present invention relates to the inside critical component of a kind of flue gas purifying equipment of field of Environment Protection, be specifically related to a kind of electrode plate structure of wet cottrell.
Background technology
Wet electrical dust precipitator is a kind of cleaning equipment being used for processing containing micro-dust and microparticle, be mainly used to remove the harmful substance such as dust, acid mist, drop, aerosol, PM2.5 containing in humid gas, have that efficiency of dust collection is high, the pressure loss is little, behaviour do simple, energy consumption is low, movement-less part, without reentrainment of dust, below flue gas dew point temperature can be worked in, can be combined with other smoke gas treatment equipment, the advantage such as versatile and flexible, be one of ideal equipment of industrial smoke pollution control, in the deacidification, demist of each industrial processes, have extensive application.Particularly along with the deterioration increasingly of China's atmosphere quality, increasingly serious and the national environmental standard of Environmental Protection in China situation day by day strict, nearly 2 years, wet static dedusting technology in China's coal-fired plant boiler smoke gas treatment system with wet desulfurizing process cooperative disposal, the application in the mercury oxide in efficient a large amount of SO3 blue smoke acid mists, gypsum rain and the flue gas removed because wet desulphurisation system produces etc. is in multiplication trend.
Wet cottrell is called for short WESP usually, its general principle and the course of work with dry electric precipitation device (DESP), be divided into charged, collect and deashing three phases, difference is only its purge mode difference.Be different from the mode of DESP vibration dust-cleaning, what wet cottrell adopted is the mode that current rinse, and pollutant is removed along with the flowing of cleaning fluid.
At present, domestic board-like horizontal wet electrostatic precipitator main flow pole plate form mostly is slab construction, the maximum defect of this kind of pole plate is the rinse water very easily bifurcated because Action of Gravity Field impact, is difficult to form uniform moisture film at polar board surface, has a strong impact on the purification efficiency of deduster.In addition, this kind of electrode plate structure adopts cleaning showers mode usually, and easily bring electric field region splashing droplet concentration to increase, the reactive loss of electric field increases relatively; Easily cause voltage and current to fluctuate because of spray pressure fluctuation or spray nozzle clogging, operation stability is not good enough; Easy appearance spray dead angle, the relevant issues such as pole plate utilization rate is relatively low.Also have and adopt the pole plate form of concave/convex-shaped structure to avoid above-mentioned bad phenomenon, but be individual layer pole plate, insufficient rigidity, pole plate is height-limited, and without part flow arrangement, current distribute uneven.
For the problems referred to above, the present invention proposes a kind of wet cottrell pole plate new construction.
Summary of the invention
The present invention is directed to wet cottrell dust collecting pole plate self and do not possess current distribution function, especially pole plate is along with highly increasing, there is the problems such as moisture film is uneven, cleaning performance is not good enough, a kind of pole plate new construction is proposed, to promote pole plate function and to increase pole plate height, simultaneously, ensure that pole plate cleaning moisture film covers evenly, improve cleaning performance, save and take up an area, investment reduction.
For achieving the above object, the present invention adopts following technical scheme:
A kind of wet cottrell pole plate, it is made up of current-sharing pipe and collecting board, it is characterized in that collecting board top is located at by current-sharing pipe, the two makes one, collecting board is the concavo-convex corrugated surface structure of Double-layer symmetrical, when rinse water flows through concavo-convex corrugated surface structure, can the equilibrium assignment water yield form the surface that uniform moisture film covers collecting board.
Describedly be provided with current-sharing pipe at collecting board top, have the equilibrium assignment function of rinse water, and connect with collecting board and make one, current-sharing pipe is the nonmetal pipe of any surface finish.
Described collecting board is double plate structure, and the technique injecting bulging by welding and high-pressure fluid by two block plates is made, and the collecting board after shaping is the concavo-convex corrugated surface structure of Double-layer symmetrical, and its peripheral sealing welds.
It is that center interlocks that described collecting board surface solder joint presses row and column, and be uniformly distributed, between row and row, solder joint centre-to-centre spacing is setting value X, and spot size is setting value Y.
In technique scheme:
The present invention is made up of current-sharing pipe and collecting board, collecting board top is located at by current-sharing pipe, the two makes one by welding or other form, its material adopts the corrosion resistant metal of any surface finish or nonmetal pipe, its sectional dimension is setting value, can according to collecting board thickness design determine, its role is to can equilibrium assignment drippage rinse water to collecting board two surface.
Collecting board of the present invention is designed to double plate structure, be that the corrosion-resistant metal materials of setting value are by after laser weld by two pieces of thickness, gases at high pressure or liquid is injected between two-layered steel plates, make the steel plate bulging at non-solder point place protruding, namely concave surface is formed at solder joint place, non-solder joint place forms convex surface, and the collecting board after shaping is the concavo-convex corrugated surface structure of Double-layer symmetrical, and its peripheral sealing welds; It is that center interlocks that collecting board surface solder joint presses row and column, and be uniformly distributed, between row and row, solder joint centre-to-centre spacing is X, and spot size is Y, and the thickness of the collecting board after bulging is shaping is between setting, and pole plate effective depth can reach more than tens meters.
The invention has the beneficial effects as follows: moisture film is even, and ash-removal effect is splendid, and pole plate utilization rate is high; Because pole plate adopts concavo-convex corrugated surface structure, the surface tension of water effectively can be utilized to overcome the impact of gravity on current, guarantee current not bifurcated, and can horizontal cross flow voluntarily, make moisture film uniform fold pole plate plate face, cleaning is thoroughly, pole plate is fully utilized completely, and ash-removal effect is splendid; Because pole plate adopts the double-deck corrugated-sheet paneling structure of high rigidity, rigidity foot, pole plate height can reach more than tens meters, there is the balanced diverter function of rinse water simultaneously, in conjunction with the non-cleaning showers mode adopting normal pressure to drip pouring or constant voltage spillway, make pole plate cleaning tool with or without spray dead angle, splash without droplet, reactive loss is little, and cleaning is thorough, efficient energy-saving; Avoid reentrainment, PM2.5 capture rate is high; The distinguishing features such as electric field is stable, and purification efficiency is high.
Below in conjunction with Figure of description, the present invention will be further described.
Accompanying drawing explanation
Fig. 1 pole plate sectional view
Fig. 2 collecting board contour structures schematic diagram
Fig. 3 drips and drenches pole plate cleaning way schematic diagram
In figure: 1, current-sharing pipe 2, collecting board
Detailed description of the invention
As shown in Figure 1, a kind of wet cottrell pole plate, its structure is made up of current-sharing pipe (1) and collecting board (2), collecting board (2) top is located at by current-sharing pipe (1), adopt the corrosion resistant metal of any surface finish or nonmetal pipe to pass through welding or alternate manner and collecting board (2) and make one, current-sharing pipe (1) sectional dimension is about Φ 15 ~ Φ 30mm, can determine according to the design of collecting board (2) thickness.
As shown in Figure 2, collecting board (2) is that the corrosion-resistant metal materials of 0.5 ~ 1.5mm are by after laser weld by two pieces of thickness, gases at high pressure or liquid is injected between two-layered steel plates, make the steel plate bulging at non-solder point place protruding, namely concave surface is formed at solder joint place, non-solder joint place forms convex surface, and the collecting board (2) after shaping is concavo-convex corrugated surface structure in Double-layer symmetrical, and imposes seal welding to its periphery.
It is that center interlocks that collecting board (2) surperficial solder joint presses row and column, is uniformly distributed; Between row and row, solder joint centre-to-centre spacing is 50 ~ 100mm, and spot size is 10mm ~ 20mm.The thickness of the collecting board (2) after bulging is shaping is between 5 ~ 15mm, and pole plate effective depth can reach more than 13m.
As shown in Figure 3, the non-fountain pole plate cleaning ways such as pouring are dripped in conjunction with normal pressure, cleaning water droplet drenches in current-sharing pipe (1) top by water-supply-pipe (groove) by this electrode plate structure, by current-sharing pipe (1), flushing water equilibrium assignment is surperficial to collecting board (2) two, utilize the male and fomale(M&F) of collecting board (2) to the guiding of current and distributional effects, decrease the impact of gravity on surface tension of liquid, ensure that current not bifurcated, make the whole collecting board of moisture film uniform fold (2) plate face, thus reach pole plate and clean effect thoroughly.
Claims (4)
1. a wet cottrell pole plate, it is made up of current-sharing pipe (1) and collecting board (2), it is characterized in that collecting board (2) top is located at by current-sharing pipe (1), the two makes one, collecting board (2) is concavo-convex corrugated surface structure in Double-layer symmetrical, can the equilibrium assignment water yield form the surface that uniform moisture film covers collecting board (2) when rinse water flows through concavo-convex corrugated surface structure.
2. a kind of wet cottrell pole plate according to claim 1, it is characterized in that being provided with current-sharing pipe (1) at collecting board (2) top, there is the equilibrium assignment function of rinse water, and connect with collecting board (2) make one, the nonmetal pipe that current-sharing pipe (1) is any surface finish.
3. a kind of wet cottrell pole plate according to claim 1, it is characterized in that collecting board (2) is double plate structure, the technique injecting bulging by welding and high-pressure fluid by two block plates is made, collecting board (2) after shaping is concavo-convex corrugated surface structure in Double-layer symmetrical, and its peripheral sealing welds.
4. a kind of wet cottrell pole plate according to claim 1, it is characterized in that collecting board (2) surperficial solder joint is that center interlocks by row and column, be uniformly distributed, between row and row, solder joint centre-to-centre spacing is setting value X, and spot size is setting value Y.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510894703.8A CN105363558A (en) | 2015-12-04 | 2015-12-04 | Polar plate for wet type electrostatic precipitator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510894703.8A CN105363558A (en) | 2015-12-04 | 2015-12-04 | Polar plate for wet type electrostatic precipitator |
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| CN105363558A true CN105363558A (en) | 2016-03-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510894703.8A Pending CN105363558A (en) | 2015-12-04 | 2015-12-04 | Polar plate for wet type electrostatic precipitator |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106076629A (en) * | 2016-06-28 | 2016-11-09 | 艾尼科环保技术(安徽)有限公司 | A kind of wet cottrell |
| CN112170015A (en) * | 2020-10-15 | 2021-01-05 | 艾尼科环保技术(安徽)有限公司 | Wet electrostatic precipitator polar plate |
| CN116713114A (en) * | 2023-08-08 | 2023-09-08 | 江苏中顺节能科技有限公司 | Dust collection polar plate of wet electric precipitator with uniformly distributed liquid film and liquid film distribution method |
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| US5160510A (en) * | 1990-06-09 | 1992-11-03 | Metallgesellschaft Aktiengesellschaft | Process and apparatus for purifying dust- and pollutant-containing exhaust gases |
| CN101396677A (en) * | 2008-11-05 | 2009-04-01 | 中冶京诚工程技术有限公司 | Polar plate flushing device and method |
| CN202045013U (en) * | 2011-01-27 | 2011-11-23 | 兰州电力修造厂 | Movable electrode anode plate device of electric dust remover |
| CN103143444A (en) * | 2013-03-12 | 2013-06-12 | 清华大学 | Dust collecting polar plate for wet electrostatic dust collection |
| CN103878066A (en) * | 2014-04-17 | 2014-06-25 | 中钢集团天澄环保科技股份有限公司 | Dust collection polar plate of wet-type electric dust collector |
| CN104718029A (en) * | 2012-12-01 | 2015-06-17 | 艾森曼欧洲公司 | Feed channel comprising an expansion body for charging the separator electrode of a wet overspray separator device |
| CN105363560A (en) * | 2015-11-16 | 2016-03-02 | 艾尼科环保技术(安徽)有限公司 | Cleaning method of wet-type electrostatic dust collector pole plate |
-
2015
- 2015-12-04 CN CN201510894703.8A patent/CN105363558A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5160510A (en) * | 1990-06-09 | 1992-11-03 | Metallgesellschaft Aktiengesellschaft | Process and apparatus for purifying dust- and pollutant-containing exhaust gases |
| CN101396677A (en) * | 2008-11-05 | 2009-04-01 | 中冶京诚工程技术有限公司 | Polar plate flushing device and method |
| CN202045013U (en) * | 2011-01-27 | 2011-11-23 | 兰州电力修造厂 | Movable electrode anode plate device of electric dust remover |
| CN104718029A (en) * | 2012-12-01 | 2015-06-17 | 艾森曼欧洲公司 | Feed channel comprising an expansion body for charging the separator electrode of a wet overspray separator device |
| CN103143444A (en) * | 2013-03-12 | 2013-06-12 | 清华大学 | Dust collecting polar plate for wet electrostatic dust collection |
| CN103878066A (en) * | 2014-04-17 | 2014-06-25 | 中钢集团天澄环保科技股份有限公司 | Dust collection polar plate of wet-type electric dust collector |
| CN105363560A (en) * | 2015-11-16 | 2016-03-02 | 艾尼科环保技术(安徽)有限公司 | Cleaning method of wet-type electrostatic dust collector pole plate |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106076629A (en) * | 2016-06-28 | 2016-11-09 | 艾尼科环保技术(安徽)有限公司 | A kind of wet cottrell |
| CN112170015A (en) * | 2020-10-15 | 2021-01-05 | 艾尼科环保技术(安徽)有限公司 | Wet electrostatic precipitator polar plate |
| CN116713114A (en) * | 2023-08-08 | 2023-09-08 | 江苏中顺节能科技有限公司 | Dust collection polar plate of wet electric precipitator with uniformly distributed liquid film and liquid film distribution method |
| CN116713114B (en) * | 2023-08-08 | 2023-10-20 | 江苏中顺节能科技有限公司 | Dust collection polar plate of wet electric precipitator with uniformly distributed liquid film and liquid film distribution method |
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Application publication date: 20160302 |