CN103586135B - Formation mode of dust collection pole plate and ash removal water film of wet-type electric precipitator - Google Patents
Formation mode of dust collection pole plate and ash removal water film of wet-type electric precipitator Download PDFInfo
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- CN103586135B CN103586135B CN201310528825.6A CN201310528825A CN103586135B CN 103586135 B CN103586135 B CN 103586135B CN 201310528825 A CN201310528825 A CN 201310528825A CN 103586135 B CN103586135 B CN 103586135B
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- pole plate
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- water distribution
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Abstract
The invention discloses a formation mode of a dust collection pole plate and an ash removal water film of a wet-type electric precipitator. The formation mode is as follows: a high temperature resistant and corrosion resistant material is used for production of the dust collection pole plate, a water distribution pipeline is arranged in the dust collection pole plate to ensure the stable and reliable operation of the pole plate and water distribution uniformity on the pole plate surface; the plate surface is appressed with a fiber woven film, by capillary action, the ash removal water film is evenly formed on the pole plate surface to avoid reentrainment of dust, and at the same time, the collection efficiency on particulate matters especially fine particulate matters can be improved.
Description
Art
The invention belongs to environment protection equipment, more particularly, to a kind of wet electrical dust precipitator dust collecting pole plate and its ash removing water film shape
One-tenth mode.
Background technology
Wet electrical dust precipitator is that when being flowed downward using the water membrane that it forms on dust collecting pole plate, cleaning is trapped in
Dust on pole plate.Compared with dry electric precipitation device: wet electrical dust precipitator does not need rapping apparatus, thus avoid rapping drawing
The reentrainment of dust rising, prevents air-flow and the wind-induced reentrainment of dust of corona；Flow downward due to being dispersed with all the time on pole plate
Moisture film, the dust becomeing trapped on pole plate is rinsed out by moisture film immediately, thus for high resistivity dust, anti-electricity will not occur
Dizzy, it is to avoid the reentrainment of dust thus causing；For low resistivity dust, the granule that will not be captured flees from pole plate, then
The phenomenon of secondary Returning flow.Due to above-mentioned advantage, wet electrical dust precipitator has very high efficiency of dust collection, is adapted to various ratios
The dust of resistance.
Existing wet electrical dust precipitator dust collector pole mostly is board-like or drum type brake.Due in wet electrical dust precipitator moisture film in pole plate
Upper dependence gravity voluntarily flows downward, if meet with obstruction or polar board surface Geometrical change, will change flow direction, occur " to converge
The phenomenon such as stream ", " branch ", can not form completely uniform ash removing water film below pole plate, and the dust of trapping can not be cleared up in time
Fall, more long-pending thicker, lead to corona discharge electrode that sedimentating dust is discharged, or even electric cleaner can be affected power, cause the cleaner unit cannot be just
Often run.Current Thermal generation unit is often larger, processes exhaust gas volumn to cleaner unit and it is also proposed bigger requirement, this also leads to
The design size ratio of corresponding wet electrical dust precipitator is larger, and more than ten meter even more than 20 meter of pole plate height will make moisture film on pole plate
Be uniformly distributed more difficult.Traditional wet electrical dust precipitator uses steel dust collecting pole plate, relatively costly, and the ring that gathers dust of wet type
Border common steel pole plate can be caused corrode, carry out using extraordinary steel pole plate or to pole plate anticorrosion process be also one not little
Investment.In addition, wet electrical dust precipitator, in order to the dust collection of trapping gets up, generally requires substantial amounts of deashing water, this
Nor the requirement of the intensive utilization to water resource for the satisfaction, and a large amount of deashing water can be produced, secondary pollution is caused to environment,
Also it is unfavorable for the comprehensive utilization of flyash.
Content of the invention
The purpose of the present invention is exactly to solve to form completely uniform moisture film on wet electrical dust precipitator dust collecting pole plate
Problem, enable wet electrical dust precipitator in coal-burning power plant's stable operation, provide one kind can reduce cost of investment, reduce rotten
Erosion, the wet electrical dust precipitator dust collecting pole plate reducing water consumption and ash removing water film forming method.
For achieving the above object, the present invention adopts following technical proposals:
A kind of wet scrubber dust collecting pole plate, main body uses the material such as heat resistant plastice, ceramic material, has and is resistant to electricity
High temperature, the environment of corrosion in cleaner unit, polar board surface is smooth, and has certain rigidity and mechanical strength, meets electricity
Hanging, the performance requirement running in cleaner unit.Wet electrical dust precipitator dust collecting pole plate water distribution pipeline is located inside pole plate, along flue gas stream
Dynamic direction is arranged in order, and has a main-supply road that each bar water distribution pipeline is connected in dust collecting pole plate bottom, and by inside
Water distribution pipeline supplies water from bottom to top.Water distribution pipeline opens up to dust collecting pole plate top, has water distribution in pole plate top relevant position
Hole, by the form of overflow to pole plate water distribution.
On described dust collecting pole plate, water distributing pore equalizes to dust collecting pole plate and supplies water, under each point current direction along above airflow direction pole plate
The initial pressure of flowing, flow velocity are all identical with flow.
Described dust collecting pole plate is generally the laminating of two panels identical structural panel and forms, and the groove on two sheet materials is after splicing
Form hydraulic pipeline.For safeguarding and changing conveniently, monoblock dust collecting pole plate is spliced by the dust collector pole lath of some pieces of vertical bar shapes.
A kind of ash removing water film for wet electric dust remover forming method, dust collecting pole plate hangs and is coated with fibrage thin film, thin
Film patch lies prostrate in polar board surface, beneficial to the formation of uniform water film.
Described fibrage thin film is generally the types such as carbon fiber, silica fibre, polypropylene or terylene, has preferable capillary and makees
With with water distribution characteristic.Ash removing water film can be enable more uniformly and stably to be distributed in using the capillarity of braided fiber to gather dust
Polar board surface.
In order to ensure that good moisture film is formed on pole plate, pole plate to be entered before pole plate overlying covered fiber woven film
Row ungrease treatment, removes surface and oil contaminant.
The invention has the beneficial effects as follows:
(1) adopt the dust collecting pole plate of the present invention, using the water distribution pipeline being uniformly distributed within pole plate, and polar board surface
The capillarity of the fibrage thin film covering, can be uniformly distributed with effectively solving wet electrical dust precipitator polar board surface ash removing water film
Problem.
(2) ash removing water film is uniformly complete, and ash-removal effect is good, and pole plate will not form deashing dead angle, will not form impact water
The complete dust block of film, thus corona wire will not be occurred it is ensured that power supply is stablized it is ensured that electric cleaner is normal to dust stratification electric discharge phenomena
Work.
(3) cost-effective, the dust collecting pole plate using new material becomes with respect to traditional wet electrical dust precipitator steel pole plate
This is cheaper, has been greatly reduced the fund input in terms of preventing corrosion.
(4) using water wisely, is supplied water using equally distributed pipeline, and is entered by the capillary properties of fibrage thin film
Row water distribution, forms uniform water film, can effectively reduce holding uniform water film institute water consumption.Minimizing with water consumption brings
It is the minimizing of deashing water circulation use equipment scale, and the minimizing of deashing water process amount, reduce the throwing of equipment in turn again
Money and operating cost.
(5) install and easy to maintenance, the dust collecting pole plate of new material is with respect to traditional wet electrical dust precipitator steel pole plate
Quality is lighter, installs maintenance convenient.As long as removing phase in the form of the splicing of dust collector pole lath so that when pole plate keeps in repair
The pole plate bar answered carries out replacing to be safeguarded.
Brief description
Fig. 1 is wet electrical dust precipitator dust collecting pole plate front view.In figure, the 1 fibrage thin film covering for polar board surface；4
For dust collecting pole plate water supply line；5 is water supply line water rate control valve.
Fig. 2 is wet electrical dust precipitator dust collecting pole plate full sectional view.In figure, the 1 fibrage thin film covering for polar board surface；
2 is dust-collecting polar board of electric dust remover；3 is the internal water distribution pipeline of dust collecting pole plate；4 is dust collecting pole plate water supply line；5 is water supply line water
Control valve door.
Fig. 3 is wet electrical dust precipitator dust collecting pole plate a-a vertical cross section sectional view.In figure, 1 fiber covering for polar board surface
Woven film；2 is dust-collecting polar board of electric dust remover；3 is the internal water distribution pipeline of dust collecting pole plate；4 is dust collecting pole plate water supply line.
Fig. 4 is wet electrical dust precipitator dust collecting pole plate b-b horizontal section sectional view.
Fig. 5 is wet electrical dust precipitator single polar plate schematic diagram and its c-c horizontal section sectional view.
Specific embodiment
Embodiment: as shown in Figure 1, Figure 2 and Figure 3, mainly have: 1, fibrage thin film；2nd, dust-collecting polar board of electric dust remover；3、
The internal water distribution pipeline of dust collecting pole plate；4th, dust collecting pole plate supply channel composition, is provided with feed pipe on dust collecting pole plate supply channel
Road water rate control valve 5.Fibrage thin film 1 pastes and is fixed on dust collecting pole plate 2 surface, as shown in Figure 3.Dust collecting pole plate feed pipe
Internal for each bar dust collecting pole plate water distribution pipeline 3 is connected by road 4, to supply ash flushing water to it, as shown in Figure 2.Electric cleaner gathers dust
Pole plate 2 is general to be assembled by the laminating relatively of two panels identical single dust collector pole plate as shown in Figure 5, the visible Fig. 4 of effect.Electricity
Cleaner unit dust collecting pole plate 2 hangs on wet electrical dust precipitator enclosure interior, lower ground.
In running, dusty gas enters dust removal part, and charged.Under the driving of electric field force, charged grit
Move to the fibrage thin film 1 on dust collecting pole plate.Deashing water enters dust collecting pole plate supply channel 4 under the driving of water-delivery pump,
And be delivered in the internal water distribution pipeline 3 of each dust collecting pole plate by it, the flow of deashing water is adjusted by water flow of pipeline control valve 5.
Deashing water is transported to dust-collecting polar board of electric dust remover 2 top, is distributed and compiles to the fiber on dust collecting pole plate surface by way of overflow
Knit in thin film 1.Deashing water in fibrage thin film 1 flows downward under gravity, and the grit of film surface is washed away
Get off.Deashing water generally enters corresponding deashing water circulation utilization system, treated recycling.
Claims (3)
1. a kind of wet electrical dust precipitator dust collecting pole plate, is characterized in that, main body by two panels mutually isostructural, there is necessarily rigidity and machine
The heat resistant plastice of tool intensity or ceramic material laminating form, and surface patch volt has fibrage thin film, and the groove on two panels pole plate exists
Form water distribution pipeline, water distribution pipeline is located inside pole plate, is vertically arranged successively along flow of flue gas direction, in dust collecting pole plate after laminating
Bottom has a main-supply road that each bar water distribution pipeline is connected, and is supplied water from bottom to top by internal water distribution pipeline, water distribution
Pipeline opens up to dust collecting pole plate top, has water distributing pore in pole plate top relevant position, by the form of overflow to pole plate cloth
Water.
2. wet electrical dust precipitator dust collecting pole plate according to claim 1 is it is characterised in that described pole plate is identical by two panels
The sheet material laminating of structure forms, and the groove on two panels pole plate forms water distribution pipeline after laminating, and water distribution pipeline is along flow of flue gas side
Arrange it is ensured that direction pole plate uniformly supplies water on pole plate to uniform, dirty along each water distributing pore current direction in flue gas direction pole plate top
Dynamic initial pressure, flow velocity, flow are all identical.
3. a kind of ash removing water film forming method of the wet electrical dust precipitator dust collecting pole plate described in claim 1, is characterized in that, to tool
After the dust collecting pole plate having necessarily rigidity and mechanical strength carries out ungrease treatment, paste volt fibrage thin film on its surface, using fibre
The capillarity of dimension woven film, makes deashing water uniformly, rapidly be distributed in film surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310528825.6A CN103586135B (en) | 2013-10-23 | 2013-10-23 | Formation mode of dust collection pole plate and ash removal water film of wet-type electric precipitator |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310528825.6A CN103586135B (en) | 2013-10-23 | 2013-10-23 | Formation mode of dust collection pole plate and ash removal water film of wet-type electric precipitator |
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| CN103586135A CN103586135A (en) | 2014-02-19 |
| CN103586135B true CN103586135B (en) | 2017-01-25 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104492604B (en) * | 2014-12-22 | 2016-07-06 | 河北工业大学 | A kind of wet type moisture film electrode electricity coalescer |
| CN106861907A (en) * | 2015-12-13 | 2017-06-20 | 白连福 | A kind of wet-esp new technology |
| CN105583076A (en) * | 2015-12-29 | 2016-05-18 | 山东神华山大能源环境有限公司 | Dry and wet coupling electrostatic dust collection system and dust collection technology |
| CN105583078B (en) * | 2016-01-08 | 2017-08-29 | 马海霞 | Liquid level electrostatic precipitator |
| CN105689143A (en) * | 2016-03-29 | 2016-06-22 | 北京生泰宝科技有限公司 | Water curtain electrode used for electric dust precipitation |
| CN106955788A (en) * | 2017-05-03 | 2017-07-18 | 广州市美控电子科技有限公司 | Liquid electrode substrate |
| CN115445354B (en) * | 2022-07-29 | 2023-12-12 | 中建八局西南建设工程有限公司 | Dust fall collection device for construction site |
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| CN102039223A (en) * | 2009-10-15 | 2011-05-04 | 财团法人交大思源基金会 | Wet-type electrostatic precipitator |
| CN203061287U (en) * | 2012-09-27 | 2013-07-17 | 浙江佳环电子有限公司 | Flexible anode wet dust collector with bidirectional water spraying |
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| TWI359048B (en) * | 2009-09-10 | 2012-03-01 | Univ Nat Chiao Tung | Wet electrostatic precipitator with pulse jet clea |
| CN101670313B (en) * | 2009-10-09 | 2012-04-25 | 山东大学 | Device and process for homogenizing fabric dust collecting electrode surface water film |
| CN102784719B (en) * | 2012-08-20 | 2015-03-11 | 山东大学 | Water internally-distributed type flexible dust collecting electrode device |
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2013
- 2013-10-23 CN CN201310528825.6A patent/CN103586135B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4360366A (en) * | 1981-10-07 | 1982-11-23 | Dresser Industries, Inc. | Liquid distributor for a wet electrostatic precipitator |
| CN1272406A (en) * | 2000-01-31 | 2000-11-08 | 烟台万华聚氨酯股份有限公司 | Wet electric dust-removing process and its special-purpose equipment |
| CN102039223A (en) * | 2009-10-15 | 2011-05-04 | 财团法人交大思源基金会 | Wet-type electrostatic precipitator |
| CN101780435A (en) * | 2010-02-25 | 2010-07-21 | 宁波大学 | Wet static dedusting device |
| CN203061287U (en) * | 2012-09-27 | 2013-07-17 | 浙江佳环电子有限公司 | Flexible anode wet dust collector with bidirectional water spraying |
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Granted publication date: 20170125 Termination date: 20191023 |