CN108435419A - A kind of electrostatic precipitator of pre- agglomerated particle object - Google Patents
A kind of electrostatic precipitator of pre- agglomerated particle object Download PDFInfo
- Publication number
- CN108435419A CN108435419A CN201810217126.2A CN201810217126A CN108435419A CN 108435419 A CN108435419 A CN 108435419A CN 201810217126 A CN201810217126 A CN 201810217126A CN 108435419 A CN108435419 A CN 108435419A
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- CN
- China
- Prior art keywords
- electrostatic precipitator
- section
- condensation
- agglomerated particle
- particle object
- 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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- 239000002245 particle Substances 0.000 title claims abstract description 35
- 239000012717 electrostatic precipitator Substances 0.000 title claims abstract description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 55
- 238000009833 condensation Methods 0.000 claims abstract description 26
- 230000005494 condensation Effects 0.000 claims abstract description 26
- 238000010438 heat treatment Methods 0.000 claims abstract description 14
- 239000000428 dust Substances 0.000 claims abstract description 12
- 238000010792 warming Methods 0.000 claims abstract description 11
- 239000003500 flue dust Substances 0.000 claims abstract description 10
- 239000003517 fume Substances 0.000 claims abstract description 9
- 239000000779 smoke Substances 0.000 claims abstract description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 239000003507 refrigerant Substances 0.000 claims description 3
- 238000001704 evaporation Methods 0.000 claims description 2
- 230000008020 evaporation Effects 0.000 claims description 2
- 238000000889 atomisation Methods 0.000 claims 2
- 239000007921 spray Substances 0.000 claims 2
- 239000013618 particulate matter Substances 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 7
- 230000001965 increasing effect Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000003595 mist Substances 0.000 description 3
- 229920006395 saturated elastomer Polymers 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 2
- 238000005367 electrostatic precipitation Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 208000030090 Acute Disease Diseases 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 208000014085 Chronic respiratory disease Diseases 0.000 description 1
- 206010061218 Inflammation Diseases 0.000 description 1
- 206010058467 Lung neoplasm malignant Diseases 0.000 description 1
- 208000002200 Respiratory Hypersensitivity Diseases 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000001684 chronic effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004054 inflammatory process Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 201000005202 lung cancer Diseases 0.000 description 1
- 208000020816 lung neoplasm Diseases 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 230000003020 moisturizing effect Effects 0.000 description 1
- 230000001473 noxious effect Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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
- B03C3/01—Pretreatment of the gases prior to electrostatic precipitation
- B03C3/014—Addition of water; Heat exchange, e.g. by condensation
Landscapes
- Electrostatic Separation (AREA)
Abstract
The invention discloses a kind of electrostatic precipitators of pre- agglomerated particle object, including electrostatic precipitator, the electrostatic precipitator outlet is connected with wind turbine, the electrostatic precipitator entrance is provided with smoke dust duct, and being connected with air suction arm section, warming and humidifying section and condensation in turn according to flue dust approach axis on the smoke dust duct increases section；It is provided with heating chamber in the warming and humidifying section, hot-water line is provided in the heating chamber, the hot-water line both ends are connect with the shell side upper and lower end of evaporator respectively；The shell side bottom of the evaporator is sequentially connected in series filter, high-pressure hydraulic pump and atomizer, and the outlet of the atomizer is arranged in the fume ducts of the heating cavity rear end；The condensation, which increases in section, is provided with condensation chamber, and cold water pipe is provided in the condensation chamber.The present invention increases the grain size of particulate matter, improves the electric conductivity of dust, improve the filter efficiency of electrostatic precipitator by first humidifying postcooling dust laden air.
Description
Technical field
The invention belongs to pollutants to remove equipment and clearance technique field, be related to a kind of electrostatic precipitation of pre- agglomerated particle object
Device.
Background technology
Kinds of processes in mechanical processing production can all generate noxious fume, and the particulate matter in these flue dust is due to grain
Diameter is minimum and is difficult to remove, such as the weld fumes generated in welding process, the metal particulate generated in hot-spraying technique.For a long time
The worker being exposed in these flue dust easy tos produce acute or chronic respiratory disease, such as respiratory hypersensitivity, chronic bronchial
Inflammation, lung cancer, middle rhinocarcinoma etc..Therefore the improvement of flue dust is the task of top priority in current occupational health in mechanical processing process.It is existing
Electrostatic precipitator when removing micron particles object effect it is preferable, but act on grain size and be less than 1 μm of ultra-fine grain
When object, efficiency is usually less than 80%, therefore proposes that a kind of use is sprayed in advance by particulate matter reunion increase, using electrostatic precipitator
The device of removing.
Invention content
It is an object of the invention to overcome electrostatic precipitator in the prior art in removal Submicro particles object
When inefficient problem, propose a kind of electrostatic precipitator of pre- agglomerated particle object.
The technical solution adopted by the present invention to solve the technical problems is：A kind of electrostatic precipitation dress of pre- agglomerated particle object
It sets, including electrostatic precipitator, the electrostatic precipitator outlet is connected with wind turbine, and it is logical that the electrostatic precipitator entrance is provided with flue dust
Road is disposed with air suction arm section, warming and humidifying section and condensation according to flue dust approach axis on the smoke dust duct and increases section；
It is provided with heating chamber in the warming and humidifying section, hot-water line, the hot-water line both ends are provided in the heating chamber
It is connect respectively with the shell side upper and lower end of evaporator；The shell side bottom of the evaporator is sequentially connected in series filter, high-pressure hydraulic pump and mist
Change nozzle, the outlet of the atomizer is arranged in the fume ducts of the heating cavity rear end；
The condensation, which increases in section, is provided with condensation chamber, and cold water pipe, the cold water pipe both ends are provided in the condensation chamber
It is separately connected outlet and the condenser shell side inlet of water circulating pump, the condenser shell-side outlet connects entering for the water circulating pump
Mouthful.
The warming and humidifying section and the condensation are connected with one section of L-type pipeline between increasing section.
The aperture of the atomizer is 0.2mm.
The shell side top of the evaporator is provided with water supply pipe.
Hot water temperature's range is at 60-80 DEG C in the hot-water line.
The cold water pipe inner cold water temperature setting is 20 DEG C.
Air suction arm section front end is connected with air-suction cover.
The tube side outlet of the evaporator is connected to suction port of compressor, and the compressor outlet is connected to the condenser
Tube-side inlet, the tube side outlet of the condenser are connected to the tube-side inlet of the evaporator by throttle valve.
The evaporator, compressor, condenser and the tube side of throttle valve use the copper pipe full of refrigerant to connect.
Outside is provided with shell, and the housing back wall face is provided with shutter, and the outer casing bottom is provided with universal wheel,
The shell upper is provided with handrail.
Process of the present invention principle：
Under supersaturated condition, particle is increased by the condensation of vapor, and grain growth speed depends on particle diameter
Dp and supersaturation rate SSR, SSR=p ∞/ps, wherein p ∞ are the steam partial pressure in air, and ps is the pressure of saturated steam
Power.Particle diameter Dp is less than the particle of molecule mean free path λ, is given birth to by the irregular collision with corresponding free molecular flow
It is long, the drop comprising particle is ultimately formed, formula (1) is the growth rate of drop：
M is the molecular mass of water, and ρ p are water droplet density, and α c are condensation coefficient, and it is single hydrone usually to take 0.04, m
Quality, k are Boltzmann constant, and Na is Avgadro constant, and T is steam temperature, and pd is the water vapor pressure of droplet surface
Power.Particle diameter Dp is more than the particle of molecule mean free path λ, is increased in the diffusion of particle surface by vapor, formula
(2) it is the growth rate of drop：
Wherein Dv is the diffusion coefficient of water vapour, and R is gas constant,
Ignore Kelvin effect, pd ≈ ps, formula (2) becomes formula (3)
Therefore the growth rate with supersaturation rate SSR journey linear relationships of particle.
Beneficial effects of the present invention：
1. the air warming and humidifying containing flue dust is first saturated moist air by the present invention, then makes air cooling in air
Hydrone is condensed in surface particles, and Spontaneous Condensation is small water droplet to hydrone simultaneously, so that the granule number in air is become more, Blang touches
Enhancing is hit, particulate matter is mutually condensed and grown up, and finally particle size is made to rise to micron order by submicron order；It is attached on simultaneously
The water vapour molecule film of particle surface improves the electric conductivity of dust again, and the specific resistance of particulate matter is made to reduce；Flue gas is aqueous
Increased hydrone reduces the insulation characterisitic of air dielectric between pole plate between rate, electrode plate, and the electric current under identical voltage is caused to increase
Greatly, be conducive to the charged of particle.To sum up, the present invention can improve the efficiency of dust collection of electrostatic precipitator.
2. the present invention is heated using compressor cooling, energy consumption can be saved while meeting design requirement.
Description of the drawings
Fig. 1 apparatus of the present invention structural schematic diagrams；
Reference numeral：1. shell, 2. evaporators, 3. compressors, 4. condensers, 5. throttle valves, 6. fume ducts, 7. electrostatic
Deduster, 8. wind turbines, 9. universal wheels, 10. handrails, 11. air suction arms, 12. air-suction covers, 13. heating chambers, 14. hot-water lines, 15. is high
Water pump, 16. atomizers, 17. water circulating pumps, 18. cold water pipes, 19. condensation chambers, 20. water supply pipes, 21. shutters, 22.
Filter, 23. copper pipes.
Specific implementation mode
Present invention will be described in further detail below with reference to the accompanying drawings, to enable those skilled in the art with reference to comment
It can implement according to this.
As shown in Figure 1, the present invention provides a kind of electrostatic precipitator of pre- agglomerated particle object, including electrostatic precipitator 7, institute
It states 7 entrance of electrostatic precipitator and is provided with smoke dust duct 6, be disposed with according to flue dust approach axis on the smoke dust duct 6
Air suction arm section, warming and humidifying section and condensation increase section；Warming and humidifying section described in the present embodiment and the condensation increase between section
It is connected with one section of L-type pipeline, air suction arm section described in the present embodiment is provided with air suction arm 11, in the present embodiment outside air suction arm 11
Arc-shaped structure is presented, air suction arm section front end is connected with air-suction cover 12；
Shell 1 is provided with outside the device, bottom has universal wheel 9, top to have the handrail 10 being moved easily, connect on shell 1
It is connected to the air suction arm 11 of inhalable flue dust, has supporting rack inside shell 1, for fixing each section；The electrostatic precipitator 7 exports
It is connected with wind turbine 8, the shutter 21 of 8 face shell of the wind turbine, 1 rear surface；
In order to fully heat air, it is provided with heating chamber 13 in the warming and humidifying section, is arranged in the heating chamber 13
There is hot-water line 14, hot water temperature's range is at 60-80 DEG C in hot-water line 14 described in the present embodiment, 14 both ends of hot-water line difference
It is connect with the shell side upper and lower end of evaporator 2；Evaporator 2 described in the present embodiment is water tank type evaporator, the evaporator 2
Shell side bottom is sequentially connected in series filter 22, high-pressure hydraulic pump 15 and atomizer 16, and filter 22 described in this implementation filters for Y types
The aperture of device, atomizer 16 described in the present embodiment is 0.2mm, and the drop particle diameter in the water mist sprayed under high pressure can reach micro-
Meter level, can be rapidly in 60 DEG C of air evaporation, and the outlet of the atomizer 16 is arranged in 13 rear end of the heating chamber
In fume ducts, air becomes saturated moist air herein, and the shell side top of the evaporator 2 is provided with water supply pipe 20, passes through outer
Shell 1, to ensure using effect, should periodically be given by water supply pipe 20 since hot water used in atomizer 16 carrys out flash-pot 2
2 moisturizing of evaporator；
The condensation, which increases in section, is provided with condensation chamber 19, and cold water pipe 18, the cold water are provided in the condensation chamber 19
18 inner cold water temperature setting of pipe is 20 DEG C, so that the vapor in air is cooled down in particle surface and condenses, 18 both ends of the cold water pipe
It is separately connected the shell side inlet of the outlet and condenser 4 of water circulating pump 17, the shell-side outlet of the condenser 4 connects the cycle
The entrance of water pump 17, condenser 4 is Water cooling type condenser in the present embodiment；
The tube side outlet of the evaporator 2 is connected to 3 entrance of compressor, and the outlet of the compressor 3 is connected to the condensation
The tube-side inlet of device 4, the tube side outlet of the condenser 4 are connected to the tube-side inlet of the evaporator 2, institute by throttle valve 5
The tube side for stating evaporator 2, compressor 3, condenser 4 and throttle valve 5 uses the copper pipe 23 full of refrigerant to connect.
In the use of the present invention, dust laden air is sucked from air-suction cover 12, air suction arm 11 in fume ducts 6 by wind turbine 8, adding
It is heated by hot-water line 14 in hot chamber 13, then water mist is sprayed into air by atomizer 16, and air becomes 60-80 DEG C of the wet sky of saturation
Gas, by, into condensation chamber 19,20 DEG C of cold water pipe 18 cools down in the chamber 19 that is condensed after one section of L-type fume ducts 6, in air
Hydrone condensed in particle surface, flocculation simultaneously increases, is removed subsequently into electrostatic precipitator 7, purified cleaning
Air passes through 8 discharger of wind turbine.
The basic principles, main features and advantages of the invention have been shown and described above, for the professional technique of this field
For personnel, above-mentioned exemplary embodiment can be carried out without departing from the principles and spirit of the present invention completely a variety of
Variation, the scope of the present invention is defined by the appended.
Claims (10)
1. a kind of electrostatic precipitator of pre- agglomerated particle object, including electrostatic precipitator, which is characterized in that the electrostatic precipitator
Outlet is connected with wind turbine, and the electrostatic precipitator entrance is provided with smoke dust duct, according to the flue dust side of entrance on the smoke dust duct
Increase section to air suction arm section, warming and humidifying section and condensation is disposed with；
It is provided with heating chamber in the warming and humidifying section, hot-water line, the hot-water line both ends difference are provided in the heating chamber
It is connect with the shell side upper and lower end of evaporator；The shell side bottom of the evaporator is sequentially connected in series filter, high-pressure hydraulic pump and atomization spray
The outlet of mouth, the atomizer is arranged in the fume ducts of the heating cavity rear end；
The condensation, which increases in section, is provided with condensation chamber, and cold water pipe, the cold water pipe both ends difference are provided in the condensation chamber
The outlet and condenser shell side inlet, the condenser shell-side outlet for connecting water circulating pump connect the entrance of the water circulating pump.
2. a kind of electrostatic precipitator of pre- agglomerated particle object according to claim 1, which is characterized in that the heating adds
It is connected with one section of L-type pipeline between wet section and condensation growth section.
3. a kind of electrostatic precipitator of pre- agglomerated particle object according to claim 1, which is characterized in that the atomization spray
The aperture of mouth is 0.2mm.
4. a kind of electrostatic precipitator of pre- agglomerated particle object according to claim 1, which is characterized in that the evaporator
Shell side top be provided with water supply pipe.
5. a kind of electrostatic precipitator of pre- agglomerated particle object according to claim 1, which is characterized in that the hot-water line
Interior hot water temperature's range is at 60-80 DEG C.
6. a kind of electrostatic precipitator of pre- agglomerated particle object according to claim 1, which is characterized in that the cold water pipe
Inner cold water temperature setting is 20 DEG C.
7. a kind of electrostatic precipitator of pre- agglomerated particle object according to claim 1, which is characterized in that the air suction arm
Duan Qianduan is connected with air-suction cover.
8. a kind of electrostatic precipitator of pre- agglomerated particle object according to claim 1, which is characterized in that the evaporator
Tube side outlet be connected to suction port of compressor, the compressor outlet is connected to the tube-side inlet of the condenser, the condensation
The tube side outlet of device is connected to the tube-side inlet of the evaporator by throttle valve.
9. a kind of electrostatic precipitator of pre- agglomerated particle object according to claim 1, which is characterized in that the evaporation
Device, compressor, condenser and the tube side of throttle valve use the copper pipe full of refrigerant to connect.
10. a kind of electrostatic precipitator of pre- agglomerated particle object according to claim 9, which is characterized in that outside setting
There are shell, the housing back wall face to be provided with shutter, the outer casing bottom is provided with universal wheel, the shell upper setting
There is handrail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810217126.2A CN108435419A (en) | 2018-03-16 | 2018-03-16 | A kind of electrostatic precipitator of pre- agglomerated particle object |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810217126.2A CN108435419A (en) | 2018-03-16 | 2018-03-16 | A kind of electrostatic precipitator of pre- agglomerated particle object |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108435419A true CN108435419A (en) | 2018-08-24 |
Family
ID=63194849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810217126.2A Pending CN108435419A (en) | 2018-03-16 | 2018-03-16 | A kind of electrostatic precipitator of pre- agglomerated particle object |
Country Status (1)
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| CN (1) | CN108435419A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4345916A (en) * | 1980-05-19 | 1982-08-24 | Richards Clyde N | Means and method for removing airborne particulates from an aerosol stream |
| US5370720A (en) * | 1993-07-23 | 1994-12-06 | Welhelm Environmental Technologies, Inc. | Flue gas conditioning system |
| JPH07299388A (en) * | 1994-05-11 | 1995-11-14 | San Techno Kk | Oily fume collector |
| WO2010041071A1 (en) * | 2008-10-08 | 2010-04-15 | Grid Xitek Ltd | Air cleaning apparatus |
| CN102145316A (en) * | 2010-02-04 | 2011-08-10 | 山东大学 | Synergistic spray charging and electrostatic dust collecting method and device |
| US20170008007A1 (en) * | 2014-06-30 | 2017-01-12 | Shandong University | Surface condensation process and device for efficiently removing coal combustion fly ash microspheres |
| CN207951723U (en) * | 2018-03-16 | 2018-10-12 | 天津大学 | A kind of electrostatic precipitator of pre- agglomerated particle object |
-
2018
- 2018-03-16 CN CN201810217126.2A patent/CN108435419A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4345916A (en) * | 1980-05-19 | 1982-08-24 | Richards Clyde N | Means and method for removing airborne particulates from an aerosol stream |
| US5370720A (en) * | 1993-07-23 | 1994-12-06 | Welhelm Environmental Technologies, Inc. | Flue gas conditioning system |
| JPH07299388A (en) * | 1994-05-11 | 1995-11-14 | San Techno Kk | Oily fume collector |
| WO2010041071A1 (en) * | 2008-10-08 | 2010-04-15 | Grid Xitek Ltd | Air cleaning apparatus |
| CN102145316A (en) * | 2010-02-04 | 2011-08-10 | 山东大学 | Synergistic spray charging and electrostatic dust collecting method and device |
| US20170008007A1 (en) * | 2014-06-30 | 2017-01-12 | Shandong University | Surface condensation process and device for efficiently removing coal combustion fly ash microspheres |
| CN207951723U (en) * | 2018-03-16 | 2018-10-12 | 天津大学 | A kind of electrostatic precipitator of pre- agglomerated particle object |
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Application publication date: 20180824 |