CN105689138A - Wet-type electric precipitator with multiple layers of cylinder electrodes - Google Patents

Wet-type electric precipitator with multiple layers of cylinder electrodes Download PDF

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Publication number
CN105689138A
CN105689138A CN201610120041.3A CN201610120041A CN105689138A CN 105689138 A CN105689138 A CN 105689138A CN 201610120041 A CN201610120041 A CN 201610120041A CN 105689138 A CN105689138 A CN 105689138A
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CN
China
Prior art keywords
electrode
dust collecting
corona discharge
corona
discharge electrode
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
Application number
CN201610120041.3A
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Chinese (zh)
Inventor
赖永花
王洪明
陈林宇
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Fujian Cercis Environment Project Co Ltd
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Fujian Cercis Environment Project Co Ltd
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Filing date
Publication date
Application filed by Fujian Cercis Environment Project Co Ltd filed Critical Fujian Cercis Environment Project Co Ltd
Priority to CN201610120041.3A priority Critical patent/CN105689138A/en
Publication of CN105689138A publication Critical patent/CN105689138A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B03SEPARATION 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
    • B03CMAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/02Plant or installations having external electricity supply
    • B03C3/16Plant or installations having external electricity supply wet type
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B03SEPARATION 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
    • B03CMAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/34Constructional details or accessories or operation thereof
    • B03C3/40Electrode constructions
    • B03C3/41Ionising-electrodes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B03SEPARATION 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
    • B03CMAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/34Constructional details or accessories or operation thereof
    • B03C3/40Electrode constructions
    • B03C3/45Collecting-electrodes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B03SEPARATION 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
    • B03CMAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/34Constructional details or accessories or operation thereof
    • B03C3/74Cleaning the electrodes
    • B03C3/78Cleaning the electrodes by washing

Abstract

The invention discloses a wet-type electric precipitator with multiple layers of cylinder electrodes. The wet-type electric precipitator comprises a plurality of dust collecting electrodes and a plurality of corona electrodes which are installed in an outer shell; the dust collecting electrodes and the corona electrodes are all cylindrical and are sequentially and alternatively installed in a sleeving manner; and faces, facing the dust collecting electrodes, of the corona electrodes discharge electricity, and an annular corona zone is formed between each dust collecting electrode and the adjacent corona electrode. According to the wet-type electric precipitator, internal and external double-face dust collecting of the dust collecting electrodes can be achieved, internal and external face electricity discharging of the corona electrodes can be achieved, the electrode distance is small, the electric capacity is large, a strong electric field can be formed through low voltage, the dust collecting efficiency is high, the structure of the precipitator is simplified, and miniaturization of the precipitator is achieved.

Description

A kind of wet electrical dust precipitator with multilamellar cylinder electrode
Technical field
The present invention relates to industrial dedusting field, be specifically related to a kind of wet electrical dust precipitator with multilamellar cylinder electrode。
Background technology
The developing rapidly of modern industry also brings serious environmental pollution while offering convenience to the mankind, and environmental problem has become one of global problem, coal-burning power plant and Industrial Boiler the pollutant produced are the main sources of air environmental pollution。The new thermal power plant's pollutant emission standard (GB13223-2011) promulgated is own formally to be implemented on January 1st, 2012。Wherein regulation coal-burning power plant dust emission limit value 30mg/m3, environmental bearing capacity higher for territorial development density starts to weaken, atmospheric environment capacity is less, ecological environment frailty or be susceptible to serious atmospheric problem of environmental pollution, and needing the strict key area controlling Air Pollutant Emission, 20mg/m is down in its coal-burning power plant's dust emission restriction3。Appearance along with new standard, the hazard of contaminant environment such as fine solid particle, acid mist, heavy metal and healthy understanding are also improved by people further, atmosphere pollutants emission standards also can constantly be improved by country, and particularly PM2.5 is this will certainly become country's Con trolling index to atmosphere pollutants emission standards to the great fine particulates of human health damage。
And existing wet desulfurization system is almost without the ability removing PM2.5 particulate matter, to hydrargyrum and SO3The elimination of aerosol etc. is also extremely limited, causes that the phenomenon such as " acid rain ", " gypsum rain " often occurs in the downstream of chimney wind direction, or has " blue smoke " phenomenon of long cigarette tail。Along with the development of industry, the harm that environment is caused by these pollutant is increasingly severe, and many conventional wet electrical dust precipitators carry out the removing of above-mentioned pollutant at present。But existing dedusting technology does not still reach desirable effect, it is therefore necessary to study a kind of new, efficiently remove fine solid particle, SO3The technology of the pollutant such as acid mist, hydrargyrum metal reduces the pollution to environment, and can be applied in commercial production with changing on a large scale。
In consideration of it, the present inventor develops a kind of wet electrical dust precipitator with multilamellar cylinder electrode for this, effectively solving the problems referred to above, this case thus produces。
Summary of the invention
A kind of wet electrical dust precipitator with multilamellar cylinder electrode provided by the invention, dust collecting electrode can inside and outside two-sided be gathered dust, corona discharge electrode can in outside electric discharge, die opening is little, and capacitance is big, and low-voltage can form highfield, dust-collecting efficiency is high, and simplifies the structure of cleaner unit, it is achieved that the miniaturization of cleaner unit。
To achieve these goals, technical scheme is as follows:
A kind of wet electrical dust precipitator with multilamellar cylinder electrode, including the some dust collecting electrode installed in the enclosure and some corona discharge electrodes, dust collecting electrode and corona discharge electrode are all cylindrical and alternate sheathed installation successively, corona discharge electrode all discharges towards the face of dust collecting electrode, forms the corona zone of annular between adjacent dust collecting electrode and corona discharge electrode。
Described corona discharge electrode is in the face of the some prickles for discharging of an EDS maps of dust collecting electrode。
Described dust collecting electrode and corona discharge electrode alternate sheathed structure successively, and wherein a corona discharge electrode is in center, are alternately arranged with dust collecting electrode and corona discharge electrode successively then out, and outermost layer is dust collecting electrode。
The described corona discharge electrode being in center mask outwardly has the prickle for discharging, and inside and outside other corona discharge electrode, two sides is respectively provided with the prickle for discharging。
The described corona discharge electrode sprayer unit being provided with corona zone circular arrangement arranged above, sprayer unit for spraying to corona discharge electrode and corona zone by water smoke。
Each shower nozzle of described sprayer unit is respectively provided with respectively in 120 degree of three nozzles arranged。
Described corona discharge electrode hangs fixing by having the hanger wire of outsourcing insulating covering, and by hanger wire and external power source electrical connection, dust collecting electrode is by insulating support and housing fixed installation, and insulating support is in the position that housing upper dries。
The smoke inlet place of described shell is provided with equal air holes plate, the cleaned air exit of shell is provided with except mist net, the described corona discharge electrode sprayer unit being provided with corona zone circular arrangement arranged above, sprayer unit is for dust collecting electrode atomized water spray, making to form continuous print in dust collecting electrode and wash away moisture film。
What described housing was positioned at dust collecting electrode is installed below drainage, drainage includes ash bucket, defecator and cyclic water tank, ash bucket is connected with defecator, defecator is connected with cyclic water tank, the described corona discharge electrode sprayer unit being provided with corona zone circular arrangement arranged above, cyclic water tank is connected with sprayer unit。
Described drainage also includes water supply tank, and water supply tank is connected with sprayer unit。
After adopting such scheme, the present invention passes through the dust collecting electrode of cylindrical structural and the structure that corona discharge electrode is mutually sheathed, thus constituting the corona zone of annular, making sheathed dust collecting electrode therein and the two-sided of corona discharge electrode to work, substantially increasing dust-collecting efficiency。Wherein cylindrical structure increases capacitance, greatly reduces die opening, makes low-voltage can form highfield, it is achieved low voltage electrostatic dedusting。And due to sheathed structure so that corona zone and Ji Chen district and two are one, simplify the structure of cleaner unit, it is achieved that the miniaturization of cleaner unit。
Accompanying drawing explanation
Fig. 1 is the structural representation of the present embodiment;
Fig. 2 is the top view of the present embodiment dust collecting electrode and corona discharge electrode;
Fig. 3 is the structural representation of sprayer unit;
Fig. 4 is the structural representation of drainage。
Label declaration
Shell 1, smoke inlet 11, equal air holes plate 12, cleaned air outlet 13, except mist net 14, dust collecting electrode 2, corona discharge electrode 3, prickle 31, corona zone 4, sprayer unit 5, nozzle 51, drainage 6, ash bucket 61, defecator 62, cyclic water tank 63, water supply tank 64。
Detailed description of the invention
In order to technical scheme is explained further, below by specific embodiment, the present invention will be described in detail。
As it is shown in figure 1, be a kind of wet electrical dust precipitator with multilamellar cylinder electrode that the present invention discloses, including the some dust collecting electrode 2 being arranged in shell 1 and some corona discharge electrodes 3。
As in figure 2 it is shown, wherein dust collecting electrode 2 and corona discharge electrode 3 are all cylindrical, and alternate sheathed installation successively。This alternates sheathed structure successively, and wherein a corona discharge electrode 3 is in center, is alternately arranged with dust collecting electrode 2 and corona discharge electrode 3 successively then out, and outermost layer is dust collecting electrode 2。Wherein corona discharge electrode 3 all discharges towards the face of dust collecting electrode 2, forms the corona zone 4 of annular between adjacent dust collecting electrode 2 and corona discharge electrode 3。
This by corona discharge electrode 3 with the spaced apart mode of dust collecting electrode 2, make except the dust collecting electrode 2(outermost layer being in housing) two-sided gather dust, except corona discharge electrode 3(center) also double-sided discharging, die opening is little, cylindrical capacitance is big, and low-voltage can form highfield, it is achieved low voltage electrostatic dedusting。And the corona discharge electrode 3 of cylindrical structural is thick, mechanical strength is high, it is not easy to is damaged by high-tension current or deforms, long service life。Simultaneously because sheathed structure so that corona zone 4 and Ji Chen district and two are one, simplify the structure of cleaner unit, it is achieved that the miniaturization of cleaner unit, add range of application。
Corona discharge electrode 3 is in the face of the some prickles 31 for discharging of an EDS maps of dust collecting electrode 2, and for the present embodiment, being in the corona discharge electrode 3 at center mask outwardly has the prickle 31 for discharging, and inside and outside other corona discharge electrode 3, two sides is respectively provided with the prickle 31 for discharging。Corona discharge electrode compared to tradition electric discharge completely, the corona current with prickle 31 point discharge can exceed about one times, and concentrate especially at the most advanced and sophisticated electronics produced of prickle 31 and ion, the electric wind speed that ion flow promotes air and formed stretches out direction up to 0.5-1m/s at prickle 31 tip。Make this cleaner unit that the efficiency of dust collection of 0.5-5 micron grit is reached more than 99%。
Corona discharge electrode 3 sprayer unit 5 being provided with corona zone 4 circular arrangement arranged above, sprayer unit 5 for spraying to corona discharge electrode 3 and corona zone 4 by water smoke, as it is shown on figure 3, each shower nozzle of this sprayer unit 5 is respectively provided with respectively in 120 degree of three nozzles 51 arranged, so that atomized water spray is more evenly distributed。To be atomized further after water smoke is charged in the powerful corona field that corona discharge electrode 3 is formed。At impact interception and the absorption coalescence of corona zone 4, electric field force, and charged water spray, powder dust particle playing trapping effect jointly, final powder dust particle arrives dust collecting electrode 2 under the driving of electric field force。Droplet can form uniform and thin moisture film when arriving in dust collecting electrode 2, it is possible to stops " secondary fly-up " of low resistivity (low-resistivity) dust, high specific resistance (high resistivity) dust is played modified effect, it is prevented that the generation of " inverse corona " phenomenon。Wherein being injected in the water smoke on corona discharge electrode 3 can keep corona discharge electrode 3 to clean, and makes corona always vigorous。
Wherein sprayer unit 5 is additionally operable to dust collecting electrode 2 atomized water spray, makes to form continuous print in dust collecting electrode 2 and washes away moisture film, makes the dust etc. being adsorbed in dust collecting electrode 2 be washed, to play transfer dust and to keep the effect of dust collecting electrode 2 cleaning。
Wherein corona discharge electrode 3 hangs fixing by having the hanger wire (not shown) of outsourcing insulating covering, and by hanger wire and external power source electrical connection, dust collecting electrode 2 is by insulating support (not shown) and housing fixed installation, and insulating support is in the position that housing upper dries。In order to enable flue gas to uniformly enter corona zone 4, smoke inlet 11 place of shell 1 is provided with equal air holes plate 12。Owing to purified gas humidity is relatively big, export 13 places for this at the cleaned air of shell 1 and be provided with except mist net 14。
For the ease of processing the buck that dust collecting electrode 2 upper punch brushes down, it is installed below drainage 6 what housing was positioned at dust collecting electrode 2, as shown in Figure 4, drainage 6 includes ash bucket 61, defecator 62 and cyclic water tank 63, ash bucket 61 is connected with defecator 62, defecator 62 is connected with cyclic water tank 63, and cyclic water tank 63 is connected with sprayer unit 5。After buck flows out from ash bucket 61, after defecator 62 is cleaned into clean water, flowing into cyclic water tank 63, cyclic water tank 63 then for supplying water to sprayer unit 5, to reach recycling of water, has been saved and has been used water。Drainage 6 also includes water supply tank 64, and water supply tank 64 is also connected with sprayer unit 5, and effect is in that when cyclic water tank 63 water yield is inadequate, by water supply tank 64 for feedwater。
The present embodiment can be used for high temperature fume dust removal, it is also possible in absorbing gas pollutant。
These are only presently preferred embodiments of the present invention, not the restriction to protection scope of the present invention。All equivalent variations done according to the mentality of designing of this case, each fall within the protection domain of this case。

Claims (10)

1. a wet electrical dust precipitator with multilamellar cylinder electrode, it is characterized in that: include some dust collecting electrode in the enclosure and some corona discharge electrodes are installed, dust collecting electrode and corona discharge electrode are all cylindrical and alternate sheathed installation successively, corona discharge electrode all discharges towards the face of dust collecting electrode, forms the corona zone of annular between adjacent dust collecting electrode and corona discharge electrode。
2. a kind of wet electrical dust precipitator with multilamellar cylinder electrode as claimed in claim 1, it is characterised in that: described corona discharge electrode is in the face of the some prickles for discharging of an EDS maps of dust collecting electrode。
3. a kind of wet electrical dust precipitator with multilamellar cylinder electrode as claimed in claim 1, it is characterized in that: described dust collecting electrode and corona discharge electrode alternate sheathed structure successively and be, wherein a corona discharge electrode is in center, alternately being arranged with dust collecting electrode and corona discharge electrode successively then out, outermost layer is dust collecting electrode。
4. a kind of wet electrical dust precipitator with multilamellar cylinder electrode as claimed in claim 3, it is characterised in that: described in be in the corona discharge electrode at center mask outwardly and have the prickle for discharging, inside and outside other corona discharge electrode, two sides is respectively provided with the prickle for discharging。
5. a kind of wet electrical dust precipitator with multilamellar cylinder electrode as claimed in claim 1, it is characterised in that: the described corona discharge electrode sprayer unit being provided with corona zone circular arrangement arranged above, sprayer unit for spraying to corona discharge electrode and corona zone by water smoke。
6. a kind of wet electrical dust precipitator with multilamellar cylinder electrode as claimed in claim 5, it is characterised in that: each shower nozzle of described sprayer unit is respectively provided with three nozzles in 120 degree layouts respectively。
7. a kind of wet electrical dust precipitator with multilamellar cylinder electrode as claimed in claim 1, it is characterized in that: described corona discharge electrode hangs fixing by having the hanger wire of outsourcing insulating covering, and by hanger wire and external power source electrical connection, dust collecting electrode is by insulating support and housing fixed installation, and insulating support is in the position that housing upper dries。
8. a kind of wet electrical dust precipitator with multilamellar cylinder electrode as claimed in claim 1, it is characterized in that: the smoke inlet place of described shell is provided with equal air holes plate, the cleaned air exit of shell is provided with except mist net, the described corona discharge electrode sprayer unit being provided with corona zone circular arrangement arranged above, sprayer unit is for dust collecting electrode atomized water spray, making to form continuous print in dust collecting electrode and wash away moisture film。
9. a kind of wet electrical dust precipitator with multilamellar cylinder electrode as claimed in claim 1, it is characterized in that: what described housing was positioned at dust collecting electrode is installed below drainage, drainage includes ash bucket, defecator and cyclic water tank, ash bucket is connected with defecator, defecator is connected with cyclic water tank, the described corona discharge electrode sprayer unit being provided with corona zone circular arrangement arranged above, cyclic water tank is connected with sprayer unit。
10. a kind of wet electrical dust precipitator with multilamellar cylinder electrode as claimed in claim 9, it is characterised in that: described drainage also includes water supply tank, and water supply tank is connected with sprayer unit。
CN201610120041.3A 2016-03-03 2016-03-03 Wet-type electric precipitator with multiple layers of cylinder electrodes Pending CN105689138A (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106140478A (en) * 2016-08-18 2016-11-23 金广恒环保技术(南京)股份有限公司 A kind of wet cottrell
CN106422630A (en) * 2016-11-15 2017-02-22 李焱 Compound water mist electric field type purifier
CN106824531A (en) * 2017-01-20 2017-06-13 美的集团股份有限公司 Fume purifying module and fume extractor
CN108176507A (en) * 2017-11-22 2018-06-19 安徽好润环保科技有限公司 A kind of integration wet cottrell
CN108295603A (en) * 2018-03-09 2018-07-20 重庆峰创科技有限公司 A kind of electric automatization self-cleaning type cleaner
CN108405182A (en) * 2018-03-09 2018-08-17 重庆峰创科技有限公司 A kind of electric automatization multistage cleaner
WO2020187303A1 (en) * 2019-03-20 2020-09-24 上海必修福企业管理有限公司 Low specific-resistance substance processing method and processing apparatus

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CN204107666U (en) * 2014-08-15 2015-01-21 浙江诸暨利达环保设备有限公司 A kind of wet electrical dust precipitator
CN104722406A (en) * 2015-03-10 2015-06-24 北京科技大学 Corrugated wet-type electric dust remover anode
CN205701039U (en) * 2016-03-03 2016-11-23 福建紫荆环境工程技术有限公司 A kind of wet electrical dust precipitator with multilamellar cylinder electrode

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106140478A (en) * 2016-08-18 2016-11-23 金广恒环保技术(南京)股份有限公司 A kind of wet cottrell
CN106422630A (en) * 2016-11-15 2017-02-22 李焱 Compound water mist electric field type purifier
CN106824531A (en) * 2017-01-20 2017-06-13 美的集团股份有限公司 Fume purifying module and fume extractor
CN108176507A (en) * 2017-11-22 2018-06-19 安徽好润环保科技有限公司 A kind of integration wet cottrell
CN108295603A (en) * 2018-03-09 2018-07-20 重庆峰创科技有限公司 A kind of electric automatization self-cleaning type cleaner
CN108405182A (en) * 2018-03-09 2018-08-17 重庆峰创科技有限公司 A kind of electric automatization multistage cleaner
WO2020187303A1 (en) * 2019-03-20 2020-09-24 上海必修福企业管理有限公司 Low specific-resistance substance processing method and processing apparatus

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