CN109499766A - Wet electrical dust precipitator - Google Patents
Wet electrical dust precipitator Download PDFInfo
- Publication number
- CN109499766A CN109499766A CN201811561052.0A CN201811561052A CN109499766A CN 109499766 A CN109499766 A CN 109499766A CN 201811561052 A CN201811561052 A CN 201811561052A CN 109499766 A CN109499766 A CN 109499766A
- Authority
- CN
- China
- Prior art keywords
- plate
- flue gas
- prickle
- pole plate
- wet electrical
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/02—Plant or installations having external electricity supply
- B03C3/16—Plant or installations having external electricity supply wet type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/34—Constructional details or accessories or operation thereof
- B03C3/40—Electrode constructions
- B03C3/41—Ionising-electrodes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/34—Constructional details or accessories or operation thereof
- B03C3/40—Electrode constructions
- B03C3/45—Collecting-electrodes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/34—Constructional details or accessories or operation thereof
- B03C3/74—Cleaning the electrodes
- B03C3/78—Cleaning the electrodes by washing
Abstract
The invention discloses a kind of wet electrical dust precipitators, including tower body and the setting intracorporal pole plate area of tower, broken ends of fractured bone head of the insulator chamber for fixed negative pole line hanging frame is provided with above pole plate area, it is characterized by: being provided with flue gas even distribution plate at the intracorporal smoke inlet of tower, it is provided with multiple perforative through-holes on flue gas even distribution plate, is provided with flue gas contractile ring above flue gas even distribution plate；Spraying layer is provided between pole plate area and flue gas even distribution plate；The pole plate area includes anode plate and cathode line, and anode plate and cathode plate are wavy, and prickle is provided at the wave crest and trough of cathode line, and prickle is located at wave crest and the outwardly projecting side of trough.Waveform pole plate increases the disorder degree of the air-flow between plate, and has bigger ratio area, and higher dust removing effects can be reached under lower discharge voltage, save the energy.
Description
Technical field
The present invention relates to flue gas ash removal technical fields, and in particular to a kind of wet electrical dust precipitator.
Background technique
Energy resource structure of the China based on coal will not change within quite long period.So far, power plants
Pollutant catabolic gene basic skills route specifically includes that low nitrogen burning+SCR denitration+dry dust removal+wet desulphurization, existing controlling party
Method is lower to the arresting efficiency of PM2.5, especially unit of the desulfurizer without GGH, chimney breast often occur " gypsum rain " or
" blue/yellow smog " phenomenon, causes secondary pollution to environment.
To solve these problems, under China's power environment protection existence conditions, flue dust advanced purification technology need to be used, raising removes
Dirt efficiency, to effectively remove fine particle, SO3Equal pollutants.In the downstream of wet desulphurization, installing wet electrical dust precipitator is one
Effective solution approach.
Wet electrical dust precipitator is a kind of high-pressure static cleaner for handling containing humid gas, is mainly used to remove containing wet
The harmful substances such as PM2.5 subparticle, acid mist, water droplet, aerosol in gas are to administer effectively setting for atmospheric dust pollution
It is standby, certain positive effect can also be played to the improvement of haze weather.
Tens of thousands of volt DC high-voltages are applied between the dust collecting electrode (anode) and discharge electrode (cathode) of wet electrical dust precipitator,
Under the action of strong electrical field, the gas between the two poles of the earth is adequately ionized, so that the space of wet electrical dust precipitator electric field region is full of band
The ion of positive and negative charge.The powder dust particle for entering wet electrical dust precipitator with the wet flue gas after desulfurization, it is mutual with these charged ions
Collision and it is charged, electrification powder dust particle is reached dust collecting electrode and is captured due to the effect by high-voltage electrostatic field Coulomb force, later
It is washed into catch basin and removes by spray irrigation water.Then traditional wet cottrell must improve voltage and catch to obtain height
Dirt rate and prevent arc extinguishing from influencing.
Summary of the invention
The technical problem to be solved by the present invention is to solve the deficiencies in the prior art, providing one kind can be improved dust capture effect
The wet electrical dust precipitator of rate.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention are as follows: a kind of wet electrical dust precipitator, including tower body
And the setting intracorporal pole plate area of tower, the broken ends of fractured bone of the insulator chamber for fixed negative pole line hanging frame is provided with above pole plate area
Head, it is characterised in that: be provided with flue gas even distribution plate at the intracorporal smoke inlet of tower, be provided on flue gas even distribution plate multiple perforative
Through-hole, flue gas even distribution plate top are provided with flue gas contractile ring；Spraying layer is provided between pole plate area and flue gas even distribution plate；The pole
Plate area includes anode plate and cathode line, and anode plate and cathode plate are wavy, and is all provided at the wave crest and trough of cathode line
It is equipped with prickle, and prickle is located at wave crest and the outwardly projecting side of trough.
Further, the distance between two prickles adjacent in same cathode line are 300~400mm, and prickle length is
100~150mm.
Further, the prickle is horizontally disposed, and prickle is tapered.
Further, it is provided with spray liquid recyclable device below the pole plate area, is then removed below spray liquid recyclable device
Day with fog, flue gas emission mouth are located at tower body bottom.
Further, spray liquid recyclable device includes a deflector and collecting tank, and the collecting tank is in a ring along tower body
Inner wall setting, the deflector is located at collecting tank top, and deflector is tapered or truncated cone-shaped, the throwing of deflector vertical direction
Shadow edge entirely falls in collecting tank in the projection of vertical direction.
Further, tower body is located at the setting in pole plate area there are two sealing plate, and sealing plate is bonded with tower body inner wall, outer surface
It is arranged in parallel with anode plate.
From above-mentioned technical proposal it can be seen that the invention has the following advantages that waveform pole plate increases the air-flow between plate
Disorder degree, under the action of electric field, dust droplet etc. is easier to be adsorbed on anode plate, is rushed by the moisture film on anode plate
It walks, it can be achieved that the joint of the multiple pollutants such as mercury, heavy metal and PM2.5 ultra-fine grain removes.It is removed in the wet type electricity of same volume
In the case where dirt device, waveform wet electrical dust precipitator has bigger ratio area, can reach under lower discharge voltage compared with
High dust removing effects, save the energy.Uniform current density when prickle makes cathode line discharge in cathode line, it is easier on prickle
A large amount of electronics are released, when dust passes through high voltage electric field, keep grit charged, and grit is made to be deposited on collection under the action of electric field force
On dirt plate.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Specific embodiment
A specific embodiment of the invention is illustrated below in conjunction with attached drawing.
As shown in Figure 1, wet electrical dust precipitator of the invention, including the pole plate area in tower body 1 and setting tower body 1, in pole
It is provided with broken ends of fractured bone head of the insulator chamber 12 for fixed negative pole line hanging frame above plate area, is arranged at the intracorporal smoke inlet of tower
There is flue gas even distribution plate 3, multiple perforative through-holes are provided on flue gas even distribution plate 3, flue gas contraction is provided with above flue gas even distribution plate 3
Ring 2, flue gas contractile ring 2 are arranged in tower body inner wall comprising what a pair supported mutually divides ring flat-plate, can weld in tower body inner wall
On, air-flow is concentrated toward centre, increases flue gas turbulence, optimizes flow field, promote local microcosmic mixing, promotes flue gas to carry micro-
Fine grained collides coalescence, to improve efficiency of dust collection.Spraying layer, including dust collector pole punching are provided between pole plate area and flue gas even distribution plate
It washes layer and discharge electrode rinses layer, anode plate and cathode line are rinsed respectively.
The pole plate area includes anode plate 7 and cathode line 13, anode plate 7 and cathode plate wavy 7, and in cathode line
Wave crest and trough at be provided with prickle 5, and prickle is located at wave crest and the outwardly projecting side of trough.Phase in same cathode line
The distance between two adjacent prickles are 300~400mm, and prickle length is 100~150mm, and the prickle is horizontally disposed, and awns
It pierces tapered.Waveform pole plate increases the disorder degree of the air-flow between plate, under the action of electric field, dust droplet SO3Gas
Colloidal sol heavy metal etc. is easier to be adsorbed on anode plate, washed away by the moisture film on anode plate, it can be achieved that mercury, heavy metal and
The joint of the multiple pollutants such as PM2.5 ultra-fine grain removes.In the case where the wet electrical dust precipitator of same volume, waveform
Wet electrical dust precipitator has bigger ratio area, and higher dust removing effects can be reached under lower discharge voltage, are saved
The energy.Uniform current density when prickle makes cathode line discharge in cathode line, it is easier to a large amount of electronics, dust are released on prickle
When passing through high voltage electric field, keep grit charged, and be deposited on grit on collecting plate under the action of electric field force.
It is provided with spray liquid recyclable device below the pole plate area, then has demister 10, cigarette below spray liquid recyclable device
Gas discharge outlet 11 is located at tower body bottom.Spray liquid recyclable device includes a deflector 8 and collecting tank 9, and the collecting tank 9 is in ring
Shape is arranged along tower body inner wall, and the deflector 8 is located above collecting tank, and deflector is tapered or truncated cone-shaped, deflector are perpendicular
Histogram to projecting edge entirely fall in collecting tank in the projection of vertical direction.
Tower body 1 is located at the setting in pole plate area, and there are two sealing plates 6, and sealing plate is bonded with tower body inner wall, outer surface and anode
Plate is arranged in parallel.Sealing plate can reduce the dead angle of tower body, to improve the ratio that flue gas flows through the dedusting electric field region, make flue gas
The overwhelming majority flows through the dedusting electric field region；At the tip of sealing plate use oval structure or arc plate structure, rounding off, just
In the smooth inflow dedusting electric field region of flue gas, and avoid the risk of local point discharge.
Claims (6)
1. a kind of wet electrical dust precipitator, including tower body and the setting intracorporal pole plate area of tower, are provided with insulation above pole plate area
Seed cell is used for the broken ends of fractured bone head of fixed negative pole line hanging frame, it is characterised in that: it is equal to be provided with flue gas at the intracorporal smoke inlet of tower
Fabric swatch is provided with multiple perforative through-holes on flue gas even distribution plate, is provided with flue gas contractile ring above flue gas even distribution plate；Pole plate area with
Spraying layer is provided between flue gas even distribution plate；The pole plate area includes anode plate and cathode line, and anode plate and cathode plate are in wave
Shape wave, and prickle is provided at the wave crest and trough of cathode line, and prickle is located at wave crest and the outwardly projecting side of trough.
2. wet electrical dust precipitator according to claim 1, it is characterised in that: in same cathode line two adjacent prickles it
Between distance be 300~400mm, prickle length be 100~150mm.
3. wet electrical dust precipitator according to claim 1, it is characterised in that: the prickle is horizontally disposed, and prickle is in cone
Shape.
4. wet electrical dust precipitator according to claim 2, it is characterised in that: be provided with spray liquid below the pole plate area and return
Then there are demister in receiving apparatus, spray liquid recyclable device lower section, and flue gas emission mouth is located at tower body bottom.
5. wet electrical dust precipitator according to claim 3, it is characterised in that: spray liquid recyclable device includes a deflector
And collecting tank, the collecting tank are arranged along tower body inner wall in a ring, the deflector is located above collecting tank, and deflector is in cone
Shape or truncated cone-shaped, the projecting edge of deflector vertical direction entirely fall in collecting tank in the projection of vertical direction.
6. wet electrical dust precipitator according to claim 1, it is characterised in that: tower body is located at the setting in pole plate area, and there are two close
Sealing plate, sealing plate are bonded with tower body inner wall, and outer surface is arranged in parallel with anode plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811561052.0A CN109499766A (en) | 2018-12-19 | 2018-12-19 | Wet electrical dust precipitator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811561052.0A CN109499766A (en) | 2018-12-19 | 2018-12-19 | Wet electrical dust precipitator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109499766A true CN109499766A (en) | 2019-03-22 |
Family
ID=65753844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811561052.0A Pending CN109499766A (en) | 2018-12-19 | 2018-12-19 | Wet electrical dust precipitator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109499766A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57159559A (en) * | 1981-03-27 | 1982-10-01 | Kobe Steel Ltd | Cleaning method for dust-collecting electrode of electric dust-collector mounted in building |
| US20140000455A1 (en) * | 2012-06-29 | 2014-01-02 | EnviroEnergy Solutions, Inc. | Apparatus and method for removing mercury from a gas stream |
| CN203972139U (en) * | 2014-07-14 | 2014-12-03 | 浙江信雅达环保工程有限公司 | A kind of wet cottrell |
| CN104190543A (en) * | 2014-08-20 | 2014-12-10 | 浙江天蓝环保技术股份有限公司 | Wet-type electric precipitator and electric precipitation desulfurization device comprising same |
| CN105312154A (en) * | 2015-12-07 | 2016-02-10 | 福建龙净环保股份有限公司 | Wet electric precipitator |
| CN207204379U (en) * | 2017-04-19 | 2018-04-10 | 武汉龙净环保科技有限公司 | Field coupling demister |
| CN207222149U (en) * | 2017-09-30 | 2018-04-13 | 厦门龙净环保技术有限公司 | A kind of wet electrostatic cyclone dust |
| CN108212528A (en) * | 2018-03-16 | 2018-06-29 | 国电科学技术研究院有限公司 | A kind of wet static dedusting gas diversion tube of circular cross-section |
| CN108380026A (en) * | 2018-03-02 | 2018-08-10 | 深圳市玖品空气净化科技有限公司 | A kind of power-saving industrial desulfurizing tower that the absorption efficiency based on Internet of Things is high |
| CN208390240U (en) * | 2018-08-09 | 2019-01-18 | 浙江德创环保科技股份有限公司 | A kind of gas-liquid separation device suitable for wet electrical dust precipitator |
-
2018
- 2018-12-19 CN CN201811561052.0A patent/CN109499766A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57159559A (en) * | 1981-03-27 | 1982-10-01 | Kobe Steel Ltd | Cleaning method for dust-collecting electrode of electric dust-collector mounted in building |
| US20140000455A1 (en) * | 2012-06-29 | 2014-01-02 | EnviroEnergy Solutions, Inc. | Apparatus and method for removing mercury from a gas stream |
| CN203972139U (en) * | 2014-07-14 | 2014-12-03 | 浙江信雅达环保工程有限公司 | A kind of wet cottrell |
| CN104190543A (en) * | 2014-08-20 | 2014-12-10 | 浙江天蓝环保技术股份有限公司 | Wet-type electric precipitator and electric precipitation desulfurization device comprising same |
| CN105312154A (en) * | 2015-12-07 | 2016-02-10 | 福建龙净环保股份有限公司 | Wet electric precipitator |
| CN207204379U (en) * | 2017-04-19 | 2018-04-10 | 武汉龙净环保科技有限公司 | Field coupling demister |
| CN207222149U (en) * | 2017-09-30 | 2018-04-13 | 厦门龙净环保技术有限公司 | A kind of wet electrostatic cyclone dust |
| CN108380026A (en) * | 2018-03-02 | 2018-08-10 | 深圳市玖品空气净化科技有限公司 | A kind of power-saving industrial desulfurizing tower that the absorption efficiency based on Internet of Things is high |
| CN108212528A (en) * | 2018-03-16 | 2018-06-29 | 国电科学技术研究院有限公司 | A kind of wet static dedusting gas diversion tube of circular cross-section |
| CN208390240U (en) * | 2018-08-09 | 2019-01-18 | 浙江德创环保科技股份有限公司 | A kind of gas-liquid separation device suitable for wet electrical dust precipitator |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190322 |