CN110585845A - Embedded electrostatic precipitator defroster - Google Patents
Embedded electrostatic precipitator defroster Download PDFInfo
- Publication number
- CN110585845A CN110585845A CN201910996212.2A CN201910996212A CN110585845A CN 110585845 A CN110585845 A CN 110585845A CN 201910996212 A CN201910996212 A CN 201910996212A CN 110585845 A CN110585845 A CN 110585845A
- Authority
- CN
- China
- Prior art keywords
- dust
- demisting
- mist
- power supply
- dedusting
- 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
Links
- 239000012717 electrostatic precipitator Substances 0.000 title claims description 6
- 239000000428 dust Substances 0.000 claims abstract description 69
- 239000003595 mist Substances 0.000 claims abstract description 27
- 238000005406 washing Methods 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 239000000779 smoke Substances 0.000 description 8
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 7
- 239000003546 flue gas Substances 0.000 description 7
- 238000006477 desulfuration reaction Methods 0.000 description 6
- 230000023556 desulfurization Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 230000005684 electric field Effects 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 230000015271 coagulation Effects 0.000 description 2
- 238000005345 coagulation Methods 0.000 description 2
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000003009 desulfurizing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000012716 precipitator Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrostatic Separation (AREA)
Abstract
The invention discloses an embedded electrostatic dust and mist removal device, which comprises a shell, a high-voltage power supply and a plurality of dust and mist removal components arranged in the shell, wherein each mist and dust removal component comprises a discharge electrode and a dust and mist collection device; from the direction of the air inlet to the air outlet, all the demisting and dedusting components are distributed in sequence, and discharge electrodes and dust collecting and demisting devices in all the demisting and dedusting components are distributed in sequence; the high-voltage power supply is connected with the discharge electrodes in the demisting and dedusting components, and the dust remover has small resistance and small arrangement space.
Description
Technical Field
The invention belongs to the field of environmental protection, relates to a dust and mist eliminator, and particularly relates to an embedded electrostatic dust and mist eliminator.
Background
Along with implementation of coal-electricity energy-saving emission-reduction upgrading and reconstruction action plans (2014-2020) and strict requirements of governments in various places on ultra-low emission, emission concentration of smoke dust at inlet of chimney of coal-fired unit must reach ultra-low emission level (less than or equal to 5 mg/m)3) The current common technical route is low-temperature electric dust remover, desulfurization and dust removal in coordination, and a newly-added wet-type electric dust remover.
The low-low temperature electric precipitator and desulfurization are used for removing dust in a synergic manner, a flue gas cooler is arranged in front of an electrostatic precipitator, the electrostatic precipitator is correspondingly modified, a desulfurization tower spray layer and a demister are optimally designed, and the main principle is that most SO is used3The smoke is condensed and fully adsorbed and trapped by smoke (the temperature of the smoke at the outlet of the smoke cooler is lower than the acid dew point temperature and works in a high-ash area) in the smoke cooling process, so that the particle size of the smoke is increased, the specific resistance is reduced, and the dust removal efficiency of the electrostatic dust remover is greatly improved; through rear portion wet flue gas desulfurization system optimal design, if increase defroster progression or add high-efficient defroster etc. improve flue gas treatment system's dust collection efficiency, ensure to reach the minimum emission requirement. The device has the advantages that the device has the defects that the high-efficiency demister needs to be additionally arranged for ensuring the dust removal efficiency of the desulfurization system, the resistance of the device is inevitably increased, the requirement on the preceding stage dust removal device is high, and the influence factors on the operation effect are more.
The wet-type electric dust collector is used for removing dust by conveying direct current negative high voltage to an electric field space, dust particles and fog drop particles in smoke are collected on the surface of a dust collecting pole under the action of electric field force after being charged through space gas ionization, and dust is washed and removed by utilizing a continuous water film formed on the surface of the dust collecting pole and regular spraying washing. Because the device works in a saturated wet flue gas environment, the corona discharge condition is improved; meanwhile, the existence of liquid drops and the lower temperature of the flue gas reduce the specific resistance of dust; in addition, the wet electric dust collector is not provided with a rapping device, so that negative effects on dust removal effects caused by secondary dust raising are avoided, and the ultra-low emission requirement can be met. The defect is that a set of equipment needs to be added, a larger arrangement space is needed no matter what arrangement mode, and the increased resistance is larger.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides an embedded electrostatic dust removal demister, which has small resistance and small arrangement space.
In order to achieve the purpose, the embedded electrostatic dust and mist removal device comprises a shell, a high-voltage power supply and a plurality of dust and mist removal components arranged in the shell, wherein each mist and dust removal component comprises a discharge electrode and a dust and mist collection device;
from the direction of the air inlet to the air outlet, all the demisting and dedusting components are distributed in sequence, and discharge electrodes and dust collecting and demisting devices in all the demisting and dedusting components are distributed in sequence;
the high-voltage power supply is connected with discharge electrodes in the demisting and dedusting components.
The device also comprises a catchment water drop self-flowing and timing washing device used for washing the dust collecting and demisting device in each demisting and dedusting component.
The distance between the discharge electrode and the dust-collecting defogging device in the same dedusting and defogging component is 500mm-700 mm.
The high-voltage power supply is a constant-current power supply or a high-efficiency power supply.
The invention has the following beneficial effects:
when the embedded electrostatic dust and mist removal demister is in specific operation, the discharge electrode is used for pre-charging dust and mist drops in flue gas, fine dust and mist drops are subjected to electric coagulation, and then the dust and mist drops are paved on the surface of the dust and mist removal device under the action of electric field force, inertial impact and centrifugal force, so that the dust and mist removal effect is good. In addition, the wet-type electric dust collector only needs to be arranged at the position of the original desulfurization demister, the original space is utilized to adopt one-stage or multi-stage arrangement, the large influence on the original structure is avoided, compared with a wet-type electric dust collector, a new arrangement space is not needed, and compared with a conventional demister, the arrangement space of the demister can be saved by at least one stage. Compared with a wet electric dust collector, the resistance can be reduced by about 250Pa because a set of dust removing equipment is not additionally arranged; compared with the conventional demister, the resistance can be reduced by about 100Pa due to the reduction of the arrangement stages of the dust collecting device.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Wherein, 1 is a shell, 2 is a high-voltage power supply, 3 is a device for automatically collecting and washing water drops at fixed time, 4 is a device for collecting dust and demisting, and 5 is a discharge electrode.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings:
referring to fig. 1, the embedded electrostatic dust and mist removal device of the present invention includes a housing 1, a high voltage power supply 2, and a plurality of dust and mist removal components disposed in the housing 1, each of the dust and mist removal components includes a discharge electrode 5 and a dust and mist removal device 4, an air inlet is disposed on one side of the housing 1, and an air outlet is disposed on the other side of the housing 1; from the direction of the air inlet to the air outlet, all the demisting and dedusting components are distributed in sequence, and discharge electrodes 5 and dust collecting and demisting devices 4 in all the demisting and dedusting components are distributed in sequence; the high-voltage power supply 2 is connected with the discharge electrodes 5 in each demisting and dedusting component.
The invention also comprises a collected water drop self-flowing and timing washing device 3 for washing the dust collecting and demisting device 4 in each demisting and dedusting component; the distance between the discharge electrode 5 and the dust-collecting defogging device 4 in the same dedusting defogging component is 500mm-700 mm; the high-voltage power supply 2 is a constant-current power supply or a high-efficiency power supply.
The device is arranged at the top of a desulfurizing tower, when the device works specifically, a discharge electrode 5 carries out pre-charging on dust and fog drops in flue gas, carries out electric coagulation on fine dust and fog drops, then spreads the dust and the fog drops on the surface of a dust and fog collecting device 4 under the action of electric field force, inertial impact and centrifugal force, and finally discharges the dust and the fog drops through an air outlet, wherein the dust and fog collecting device 4 is washed by a trapped water drop self-flowing and timing washing device 3.
The arrangement series and the polar matching form of the discharge electrodes 5 are adjusted according to the efficiency requirement, the dust collecting and demisting device 4 in the demisting and dedusting assembly is adjusted according to the arrangement series and the homopolar distance (40mm-100mm), and the discharge electrodes 5 are made of titanium alloy or 2205.
Claims (4)
1. An embedded electrostatic dust and mist removal device is characterized by comprising a shell (1), a high-voltage power supply (2) and a plurality of dust and mist removal components arranged in the shell (1), wherein each mist and dust removal component comprises a discharge electrode (5) and a dust and mist removal device (4), an air inlet is formed in one side of the shell (1), and an air outlet is formed in the other side of the shell (1);
from the direction of the air inlet to the air outlet, all the demisting and dedusting components are distributed in sequence, and discharge electrodes (5) and dust collecting and demisting devices (4) in all the demisting and dedusting components are distributed in sequence;
the high-voltage power supply (2) is connected with the discharge electrodes (5) in the demisting and dedusting components.
2. The embedded electrostatic precipitator demister of claim 1, further comprising a self-flowing and timed washing device (3) for washing the collected water droplets in the dust collecting and demisting device (4) of each demisting and dedusting assembly.
3. The embedded electrostatic dust and mist eliminator according to claim 1, wherein the distance between the discharge electrode (5) and the dust and mist eliminator (4) in the same dust and mist eliminator is 500mm-700 mm.
4. The embedded electrostatic precipitator demister of claim 1, wherein the high voltage power supply (2) is a constant current power supply or a high efficiency power supply.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910996212.2A CN110585845A (en) | 2019-10-18 | 2019-10-18 | Embedded electrostatic precipitator defroster |
| PCT/CN2020/121095 WO2021073566A1 (en) | 2019-10-18 | 2020-10-15 | Embedded electrostatic de-dusting and de-fogging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910996212.2A CN110585845A (en) | 2019-10-18 | 2019-10-18 | Embedded electrostatic precipitator defroster |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110585845A true CN110585845A (en) | 2019-12-20 |
Family
ID=68851027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910996212.2A Pending CN110585845A (en) | 2019-10-18 | 2019-10-18 | Embedded electrostatic precipitator defroster |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN110585845A (en) |
| WO (1) | WO2021073566A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111495087A (en) * | 2020-04-24 | 2020-08-07 | 辽宁北方环境保护有限公司 | Electric furnace flue gas high-temperature dust removal process system |
| CN112675649A (en) * | 2020-12-02 | 2021-04-20 | 中山安畅机械科技有限公司 | Smoke dust removing structure, material mixer adopting smoke dust removing structure and smoke dust removing method of material mixer |
| WO2021073566A1 (en) * | 2019-10-18 | 2021-04-22 | 西安热工研究院有限公司 | Embedded electrostatic de-dusting and de-fogging device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116036810B (en) * | 2023-03-15 | 2023-11-14 | 江苏博丹净化设备有限公司 | Flue gas cooling and dust removing device for atmospheric pollution treatment |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0957054A (en) * | 1995-08-25 | 1997-03-04 | Babcock Hitachi Kk | Dust-charging wet desulfurizer |
| CN102688682A (en) * | 2012-05-16 | 2012-09-26 | 浙江菲达环保科技股份有限公司 | Flue gas desulfurization tower |
| CN103900155A (en) * | 2012-12-26 | 2014-07-02 | 周志强 | Water-ion air purifier |
| CN103933813A (en) * | 2014-04-01 | 2014-07-23 | 国电环境保护研究院 | Combined dust removing and defogging device for smoke |
| CN203990908U (en) * | 2014-06-04 | 2014-12-10 | 浙江南源环境工程技术有限公司 | A kind of dry electric precipitation device |
| CN104606997A (en) * | 2015-02-06 | 2015-05-13 | 廖世平 | Electrostatic filtering deduster |
| CN104874255A (en) * | 2015-06-08 | 2015-09-02 | 北京香源溪环保科技有限公司 | Demisting system with dedusting, demisting and water recovery functions |
| CN105817103A (en) * | 2016-04-22 | 2016-08-03 | 上海超惠通风环保设备有限公司 | Novel PM2.5 superfine grain size purifying device |
| CN105944484A (en) * | 2016-06-16 | 2016-09-21 | 马鞍山市顺达环保设备有限公司 | Automatic centrifugal wet-type electrostatic dust collector |
| CN206382121U (en) * | 2016-12-07 | 2017-08-08 | 浙江德创环保科技股份有限公司 | A kind of electrostatic precipitation demisting environmental protecting device |
| CN108380385A (en) * | 2018-05-04 | 2018-08-10 | 浙江大学 | A kind of electrostatic couples high-effective dust-removing demisting integrated apparatus and method with inertia |
| CN210874650U (en) * | 2019-10-18 | 2020-06-30 | 西安热工研究院有限公司 | Embedded electrostatic precipitator defroster |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT942698B (en) * | 1970-11-28 | 1973-04-02 | Buderus Eisenwerk | ELECTROSTATIC FILTER FOR AIR AND OTHER GASES |
| CN110585845A (en) * | 2019-10-18 | 2019-12-20 | 西安热工研究院有限公司 | Embedded electrostatic precipitator defroster |
-
2019
- 2019-10-18 CN CN201910996212.2A patent/CN110585845A/en active Pending
-
2020
- 2020-10-15 WO PCT/CN2020/121095 patent/WO2021073566A1/en active Application Filing
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0957054A (en) * | 1995-08-25 | 1997-03-04 | Babcock Hitachi Kk | Dust-charging wet desulfurizer |
| CN102688682A (en) * | 2012-05-16 | 2012-09-26 | 浙江菲达环保科技股份有限公司 | Flue gas desulfurization tower |
| CN103900155A (en) * | 2012-12-26 | 2014-07-02 | 周志强 | Water-ion air purifier |
| CN103933813A (en) * | 2014-04-01 | 2014-07-23 | 国电环境保护研究院 | Combined dust removing and defogging device for smoke |
| CN203990908U (en) * | 2014-06-04 | 2014-12-10 | 浙江南源环境工程技术有限公司 | A kind of dry electric precipitation device |
| CN104606997A (en) * | 2015-02-06 | 2015-05-13 | 廖世平 | Electrostatic filtering deduster |
| CN104874255A (en) * | 2015-06-08 | 2015-09-02 | 北京香源溪环保科技有限公司 | Demisting system with dedusting, demisting and water recovery functions |
| CN105817103A (en) * | 2016-04-22 | 2016-08-03 | 上海超惠通风环保设备有限公司 | Novel PM2.5 superfine grain size purifying device |
| CN105944484A (en) * | 2016-06-16 | 2016-09-21 | 马鞍山市顺达环保设备有限公司 | Automatic centrifugal wet-type electrostatic dust collector |
| CN206382121U (en) * | 2016-12-07 | 2017-08-08 | 浙江德创环保科技股份有限公司 | A kind of electrostatic precipitation demisting environmental protecting device |
| CN108380385A (en) * | 2018-05-04 | 2018-08-10 | 浙江大学 | A kind of electrostatic couples high-effective dust-removing demisting integrated apparatus and method with inertia |
| CN210874650U (en) * | 2019-10-18 | 2020-06-30 | 西安热工研究院有限公司 | Embedded electrostatic precipitator defroster |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021073566A1 (en) * | 2019-10-18 | 2021-04-22 | 西安热工研究院有限公司 | Embedded electrostatic de-dusting and de-fogging device |
| CN111495087A (en) * | 2020-04-24 | 2020-08-07 | 辽宁北方环境保护有限公司 | Electric furnace flue gas high-temperature dust removal process system |
| CN112675649A (en) * | 2020-12-02 | 2021-04-20 | 中山安畅机械科技有限公司 | Smoke dust removing structure, material mixer adopting smoke dust removing structure and smoke dust removing method of material mixer |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2021073566A1 (en) | 2021-04-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110585845A (en) | Embedded electrostatic precipitator defroster | |
| CN204220297U (en) | A kind of wet cottrell | |
| CN1911526B (en) | High efficiency electrostatic dust separator | |
| CN102145316A (en) | Synergistic spray charging and electrostatic dust collecting method and device | |
| CN102179125A (en) | Method and device for removing dust in flue gas | |
| CN105289844A (en) | Charged water spray printing and dyeing waste gas treatment device and method | |
| CN104324805A (en) | Method for capturing PM2.5 fine particles through water mist charged coagulation for electric precipitation | |
| CN202570373U (en) | Ultrasonic atomization electric-grid dust removing plant | |
| EP2868384B1 (en) | Wet electric dust-collecting device and exhaust gas treatment method | |
| CN204436530U (en) | A kind of vehicle exhaust dust removal apparatus | |
| CN210874650U (en) | Embedded electrostatic precipitator defroster | |
| CN208574781U (en) | A kind of electronic dust catcher of stable dedusting and synchronous purification air | |
| CN104069713A (en) | Coagulation-enhanced electricity-bag dust removing process | |
| CN2709906Y (en) | Cooling tower spray recovery device of coal-fired generation boiler | |
| CN204911793U (en) | Wet electrostatic precipitator equipment | |
| CN106140478A (en) | A kind of wet cottrell | |
| KR20050112535A (en) | Apparatus for removing the harmful fine particles with combined negative and positive dielectric agglomeration precipitation and method for capturing the same | |
| CN206064625U (en) | A kind of wet cottrell | |
| CN216778324U (en) | Charged spray dust removal device | |
| CN105833993A (en) | Electric-arc-type demister | |
| CN204073749U (en) | A kind of soot gas destatics system | |
| CN204544444U (en) | A kind of wet type electrostatic precipitator with spiral board | |
| CN205701039U (en) | A kind of wet electrical dust precipitator with multilamellar cylinder electrode | |
| CN203972138U (en) | The positive and negative concussion wet type of a kind of high voltage demister | |
| CN205065959U (en) | High -efficient air purifier electrostatic precipitator device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |