CN206824016U - A kind of Combined Electrostatic dust pelletizing system of temperature/more field strength of wet regulation and control - Google Patents
A kind of Combined Electrostatic dust pelletizing system of temperature/more field strength of wet regulation and control Download PDFInfo
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- CN206824016U CN206824016U CN201720528083.0U CN201720528083U CN206824016U CN 206824016 U CN206824016 U CN 206824016U CN 201720528083 U CN201720528083 U CN 201720528083U CN 206824016 U CN206824016 U CN 206824016U
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- particulate matter
- temperature
- humidification
- dust pelletizing
- waste water
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Abstract
It the utility model is related to a kind of Combined Electrostatic dust pelletizing system of temperature/more field strength of wet regulation and control, including the temperature adjustment humidification system sequentially connected, the charge reinforced system of electric precipitation final stage pulse, it is layered desulfurization collaboration humidification dust pelletizing system, and the charge reinforced system of particulate matter that humidification flows, the utility model carries out system level reinforcing from technology and design level to particulate matter removing, by temperature adjustment, humidification, flow, charged combination of gathering dust with reinforcing, pass through flow field, atmosphere, particle characteristics, the many aspects such as high-voltage electrostatic field realize that particulate matter is charge reinforced, breach particulate matter, the particularly charged difficulty of superfine particulate matter, the low problem of carrying capacity, so as to realize the efficient removal of particulate matter in industrial smoke.
Description
Technical field
The utility model belongs to energy-environment project pollution emission reduction technical field, and in particular to a kind of temperature/wet more of regulation and control
The Combined Electrostatic dust pelletizing system of reinforcing.
Background technology
With the rapid development of economy, problem of environmental pollution is on the rise, the haze weather that all parts of the country are increasingly aggravated is more
It is that the health of people is caused to seriously endanger, the whole nation is to PM2.5Demand for control it is increasingly urgent.
The Crack cause of haze weather is mainly the fine particle that high concentration is left floating in air, and the particulate matter in China is main
From fixed source emission, such as coal-burning power plant.Wherein the primary particle state pollutant of stationary source includes may filter that particulate matter with that can coagulate
Particulate matter is tied, the discharge ratio of the two is about 1:1, it is one of important sources of particulate pollutant in air.But due to that can coagulate
The generting machanism of particulate matter is tied, it belongs to fine particulates, in PM10And PM2.5In occupy bigger ratio, with may filter that particle
Thing is compared, caused by endanger bigger, and be more easy to result in haze weather.
Fine particle capturing device can be very good to avoid back corona phenomenon and shake as a kind of new dedusting technology
Beat the reentrainment of dust that deashing is brought.But due to the charged relation between grain diameter, electric cleaner is for charged insufficient
The removal efficiency of fine particulates is relatively low, thus the control for fine particles such as condensable particulate matters be difficult to reach discharge will
Ask.Simultaneously as high concentration suspended matter caused by the desulphurization system of front end, including gypsum particle, the hydrogen-oxygen of silica and iron/aluminium
Compound etc., waste water hardness is higher, between 5116~11545mg/L, the cation in waste water be mainly the hardness such as calcium and magnesium from
Son, heavy metal ion species is more, is mainly simultaneously chlorion containing substantial amounts of anion, easily causes the corruption of follow-up equipment
Erosion.
Utility model content
The utility model for existing flue gas pollutant emission reduction process air flow method is uneven, superfine particulate matter it is charged it is difficult,
A kind of problems such as carrying capacity is low, removal efficiency is low, it is proposed that the Combined Electrostatic dust pelletizing system of temperature/more field strength of wet regulation and control.
In order to realize above-mentioned function, the technical solution adopted in the utility model is：
A kind of Combined Electrostatic dust pelletizing system of temperature/more field strength of wet regulation and control, the Combined Electrostatic dust pelletizing system are included sequentially
Temperature adjustment humidification system, the charge reinforced system of electric precipitation final stage pulse, layering desulfurization collaboration humidification dust pelletizing system, the Yi Jizeng of connection
The wet charge reinforced system of particulate matter flowed, the temperature adjustment humidification system include temperature-reducing heat-exchange device and waste water humidifying device, drop
The outlet of warm heat-exchanger rig is connected with the import of waste water humidifying device；The charge reinforced system of electric precipitation final stage pulse includes
Several continuous electrostatic fields, the power supply of the last pole electric field in the electrostatic field is high-voltage pulse power source；The layering desulfurization association
It is connected with humidification dust pelletizing system with desulfurization wastewater pond, the charge reinforced system of particulate matter is connected with waste water tank, the waste water tank
It is connected with desulfurization wastewater pond, desulfurization wastewater pond sequentially passes through neutralization pond, flocculation basin, sedimentation basin and is connected with waste water humidifying device
Logical, the waste water tank is also connected with cyclic water tank；The charge reinforced system of particulate matter includes condenser pipe, drop spray, the moon
Pole framework and cleaning spray, the drop spray, cleaning spray are connected with cyclic water tank respectively；The particulate matter is charged strong
Heating heat-exchanger rig is provided with after change system, before chimney, the heating heat-exchanger rig is connected with temperature-reducing heat-exchange device.
Preferably, wastewater heat exchange device is provided between the sedimentation basin and waste water humidifying device.Desulfurization wastewater is passing through
It can select to set heating unit to be heated before atomizer aerosol dispersion, the surface tension of liquid can be reduced, helped
In obtaining the smaller atomized drop of particle diameter.
Preferably, being provided with double fluid atomization nozzle in the waste water humidifying device, the double fluid atomization nozzle is with taking off
Sulphur wastewater disposal basin is connected.By atomizing air atomizing, atomizing particle size is reduced, shortens the evaporation time of drop in flue, keeps away
Exempt from adhesion of the drop on flue tube wall, the arrangement form that nozzle can be used to interlock.
Preferably, the charge reinforced system of particulate matter uses horizontal type electric dust collector, the condenser pipe is arranged on horizontal
Electric cleaner it is horn-like enter it is intraoral, the horn-like import end is provided with two layers of airflow uniform distribution plate, its spacing control 100~
Between 150mm；The drop sparger arrangement is arranged on above cathode frame in airflow uniform distribution plate rear, the cleaning spray.By
The power supply power supply of high-energy-density, stable provide produce high-voltage electrostatic field and the high density energy needed for high-density particles, make
Grain carrying capacity improves more than 20~40%.
Preferably, the condenser pipe is formed using 25 × 1.5mm of Φ stainless steel serpentine coil, the drop spray peace
Loaded on the support vertical with flue gas direction, arranging parallel tube array on support, the nozzle interlaced arrangement of adjacent tubes row.Ensure 90%
Grain diameter coalescence above, grow up to more than 0.5 μm.
To promote the cooperation-removal of acid contaminant, it is humidified used by the drop spray in the charge reinforced system of particulate matter
Agent can be alkaline process water.Spray flux continuously adjustabe, the spray angles of each nozzle are by accurately correcting with matching.Wet type electricity removes
Dirt device cleaning spray intermittent duty in system operation, with reference to the water droplet trapped in electric field to cathode frame (dust collecting pole plate)
It is rinsed.
The atomized water of waste water humidifying device can use treated desulfurization wastewater, can be saved by spraying evaporation process
Water resource reduces the processing cost of desulfurization wastewater simultaneously, contributes to power plant waste water zero-emission.
The utility model power-plant flue gas enters decreasing temperature and increasing humidity system after preposition denitrification apparatus SCR and air heat exchanger
System, decreasing temperature and increasing humidity system include temperature-reducing heat-exchange device and waste water humidifying device, reduce temperature by temperature-reducing heat-exchange device, realize temperature
Degree regulation and control.The heat-exchanger rig can use dividing wall type or the heat-exchanger rig of other forms, using high-abrasive material.Flue-gas temperature drops
It is low to reduce the flue gas flow by deduster so as to reducing total flue gas flow, lift efficiency of dust collection, by flue gas humidification system to
Humidification water is sprayed into flue gas, local humidity rises rapidly, promotes the coalescence of particulate matter in flue gas, fast using flue-gas temperature, droplet
Speed evaporation, the pulse power is used to strengthen by electric precipitation final stage electric field fine grain charged, charged fine grained improves washing
The trapping effect to particle is acted on, before saturated flue gas enters wet cottrell, the preferred arrangement sprayed by drop makes to surpass
Small droplet may be uniformly distributed in system space, with flue gas be sufficiently mixed and is effectively humidified；After electric cleaner is handled
Flue gas enters layering desulfurization collaboration humidification dust pelletizing system, and wherein oxysulfide of the sprayed slurry in flue gas is deviate from same
When, also certain probability collides with escaping particles, and then produces certain granule capturing effect.In addition, Multi-layer sprinkling can
The temperature of flue gas is reduced, increases the water capacity of flue gas.The system can be to spraying layer the unlatching number of plies and sprayed slurry temperature
Be controlled, by regulation and control the two to reach optimal humidification with cooperateing with dust removing effects；That last flue gas flows into humidification
The grain charge reinforced system of thing, by being humidified to flue gas and being flowed, make particle Caragana seed pests in uniform flow field, improve particle
Charge capacity in electrostatic field, and then the removal efficiency of high superfine particulate matter.The high-performance heat exchanger in simultaneity factor exit can
Reduce flue-gas temperature, white cigarette and equipment corrosion problem caused by effectively preventing flue-gas temperature too low.
The utility model carries out system level reinforcing from technology and design level to particulate matter removing, by temperature adjustment, humidification, equal
Stream, charged combination of gathering dust with reinforcing, particle is realized by many aspects such as flow field, atmosphere, particle characteristics, high-voltage electrostatic fields
Thing is charge reinforced, the charged problem difficult, carrying capacity is low of particulate matter, particularly superfine particulate matter is breached, so as to realize industrial cigarette
The efficient removal of particulate matter in gas.The utility model can effectively facilitate the coalescence of particulate matter, grow up, and make more than 90% particle
Particle diameter reaches more than 0.5 μm, charging particle amount is averagely improved more than 20%, final particle removal efficiency reaches more than 99%.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model embodiment 1；
Fig. 2 is the structural representation of the utility model embodiment 2.
Embodiment
The utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings, but claimed by the utility model
Scope be not limited to this.
Embodiment 1
Using horizontal type electric dust collector, flue gas flow 15000Nm3/s。
Reference picture 1, a kind of Combined Electrostatic dust pelletizing system of temperature/more field strength of wet regulation and control, the Combined Electrostatic dust pelletizing system
Including sequentially connect temperature adjustment humidification system, the charge reinforced system of electric precipitation final stage pulse, layering desulfurization collaboration humidification dedusting system
The charge reinforced system of particulate matter that system and humidification flow, the temperature adjustment humidification system includes temperature-reducing heat-exchange device 1 and waste water increases
Wet device 2, the outlet of temperature-reducing heat-exchange device 1 are connected with the import of waste water humidifying device 2；The layering desulfurization collaboration humidification removes
Dirt system (desulfurizing tower) 4 is connected with desulfurization wastewater pond 12, and the charge reinforced system of particulate matter is connected with waste water tank 10, described useless
Water tank 10 is connected with desulfurization wastewater pond 12, and desulfurization wastewater pond 12 sequentially passes through neutralization pond 13, flocculation basin 14, sedimentation basin 15 with giving up
Water humidifying device 2 is connected, and the waste water tank 10 is also connected with cyclic water tank 11；The sedimentation basin 15 and waste water humidifying device
Wastewater heat exchange device 16 is provided between 2, desulfurization wastewater can select to set heating single before by atomizer aerosol dispersion
Member is heated, and can reduce the surface tension of liquid, helps to obtain the smaller atomized drop of particle diameter.The particulate matter is charged
Heating heat-exchanger rig 9 is provided with after consolidation system, before chimney, the heating heat-exchanger rig 9 is connected with temperature-reducing heat-exchange device 1
It is logical.
Double fluid atomization nozzle, the double fluid atomization nozzle and desulfurization wastewater pond 12 are provided with the waste water humidifying device
It is connected, by atomizing air atomizing, reduces atomizing particle size, shorten the evaporation time of drop in flue, avoid droplets from
Adhesion on flue tube wall, the arrangement form that nozzle can be used to interlock.
Power-plant flue gas enters temperature adjustment and waste water humidification system after flowing through denitrification apparatus SCR and air heat exchanger, passes through
Temperature-reducing heat-exchange device reduces more than flue-gas temperature to the following water dew point of acid dew point, makes SO3Deng condensable material matter in ash surface absorption
Condense and change ratio resistance raising electric cleaner service behaviour, temperature-reducing heat-exchange device cooled flue gas by way of cooling water circulation,
Dividing wall type or other heat transfer forms can be used, using high-abrasive material.Flue-gas temperature is reduced so as to reduce total flue gas flow, is reduced
By the flue gas flow of deduster, efficiency of dust collection is lifted.Waste water humidifying device is using caused desulfurization wastewater in wet desulfuration tower
As humidification water, humidification water is injected among flue so that local flue gas cools rapidly, is sprayed using double fluid atomization nozzle
Penetrate, double fluid atomization nozzle obtains the droplet thinner compared with plain nozzle, control particle diameter is between 10 by way of introducing atomization gas
~100 μm, evaporation time is less than 0.3s, avoids deposition of droplets in wall.Desulfurization wastewater as humidification water, by neutralizing, flocculating,
The precipitation such as most solid contents is removed after settling three treatment process, its heating can be made by way of heating, reduces table
Face tension force, reduce atomizing particle size.
The charge reinforced system of electric precipitation final stage pulse includes four continuous electrostatic fields 3, the end in the electrostatic field
The power supply of pole electric field is high-voltage pulse power source；It can strengthen fine grain charged, its repetition rate should continuously may be used in 0~1000Hz
Adjust, its rising edge of a pulse is within 20 μ s, and its pulse width should be within 50 μ s, and its output voltage is continuous in -20kV to -80kV
Adjustable, its transient pulse power can reach more than 2MW, and its energy conversion efficiency is more than 80%；Utilize charge reinforced electric discharge
System, high-voltage electrostatic field and high density ion are produced in system space, make particulate matter in flue gas and drop effectively charged, make
It enters after subsequent contamination emission-reducing system by efficient removal；Using high-energy-density electric power system, it is quiet that stable offer produces high pressure
High density energy needed for electric field and high-density particles, and form is matched somebody with somebody by new power supply technique and its optimization pole, further carry
Lifting electric strength and carrying capacity.The charge reinforced system of electric precipitation final stage pulse includes discharge electrode and dust collector pole, discharge electrode with
Pulse power negative pole is connected, and gather dust extremely positive pole, ground connection.Discharge electrode is made using anticorrosion special steel material, and dust collector pole uses #
502 steel are made, and electrostatic precipitator takes four electric field arrangement forms, dust is charged in deduster and driving in electric field force under
It is captured to polar motion is gathered dust on dust collector pole, and enters ash bucket, periodically processing.
Described layering desulfurization collaboration humidification dust pelletizing system is made up of Multi-layer sprinkling layer, and electric precipitation final stage pulse is charge reinforced
The electrically charged particle escaped in system enters Multi-layer sprinkling region with flue gas, and oxysulfide of the sprayed slurry in flue gas takes off
While going out, also certain probability collides with escaping particles, and then produces certain granule capturing effect.In addition, multilayer
Spray can reduce the temperature of flue gas, increase the water capacity of flue gas, flue gas is reached saturation state before next system is entered.
The charge reinforced system of particulate matter uses horizontal type electric dust collector, and the charge reinforced system of particulate matter includes condensation
Pipe 5, fine droplets spray 6, cathode frame 8 and cleaning spray 7, the fine droplets spray 6, cleaning spray 7 are respectively with following
Ring water tank 11 is connected；The condenser pipe 5 be arranged on horizontal type electric dust collector it is horn-like enter it is intraoral, the horn-like import end is set
There is two layers of airflow uniform distribution plate 17, its spacing is controlled in 120mm；The drop spray 6 is arranged in airflow uniform distribution plate rear, described the moon
Pole framework 8 is multistage stainless steel cathode frame, and is powered by pulse power overlapped high-frequency power supply, is supplied by the power supply of high-energy-density
Electricity, stable provide produce high-voltage electrostatic field and the high density energy needed for high-density particles, make charging particle amount improve 20~
More than 40%.The cleaning spray 7 is arranged on above cathode frame.
The condenser pipe is formed using 25 × 1.5mm of Φ stainless steel serpentine coil, the airflow uniform distribution packing free ratio
45%, perforate size φ 35mm, the drop spray are installed on the support vertical with flue gas direction, and parallel pipe is arranged on support
Row, the nozzle direction of drop spray is consistent with flue gas flow direction, and the spacing of pipe row is not more than the effective jet length of nozzle, adjacent tubes row
Nozzle interlaced arrangement；The nozzle of drop spray uses finer atomization solid-cone (type) nozzle, can produce particle size range 50~
500 μm of fine droplets, nozzle flow 1.5L/min, the spray angle of nozzle is 30 °.Ensure more than 90% grain diameter
Coalescence, grow up to more than 0.5 μm.
High-humidity gas fume after desulfurizing tower spreads through horn-like diffusing opening and reduces flow velocity, particle in flue gas is being removed system
Increased resident time in system, makes particle more fully be captured；Airflow uniform distribution plate can make flue gas flow field distribution more uniform, have
Beneficial to the charged of particle and trap, lift the operational effect of whole system；Condenser pipe makes flue-gas temperature rapid drawdown, improves the mistake of flue gas
Saturation degree, while promote the nucleation of condensable particulate matter, condense and grow up, make condensable particulate matter by gaseous state and 0.1 μm of level
Fine particulates length is greatly more than 1 μm of particulate matter, and growing up for particle size can make particle charged in high-voltage electrostatic field
It is more abundant, and then improve arresting efficiency.In addition, condenser pipe can effectively control the temperature drop of flue gas by regulating water flow, make it
It is optimal running status.Flue gas after rectified cooling enters fine droplets jet segment, by the preferred arrangement of injection apparatus,
The fine droplets for being atomized into humidizer are uniformly distributed in system space, with flue gas be sufficiently mixed and are effectively humidified.One side
Face, using the characteristic that droplets speed is fast, carrying capacity is big, it can be made rapid powered in high-voltage electrostatic field, and with flue gas
Particulate matter collision combine, make particulate matter charged, so make particulate matter combined with drop after property to being advantageous to charged side
To changing, the charged speed and carrying capacity that make particle are all significantly improved；On the other hand, the raising of smoke moisture is not only
Be advantageous to the condensation growth of condensable particulate matter, can also make the wet flue gas into high-voltage electrostatic field in electrohydrodynamic (EHD)
Condense out small water droplet under effect, migrated after substantial amounts of condensing water droplet is charged to pole plate, and form one layer of uniform water film, can play
The effect of deashing is aided in, and then saves the dosage of flushing water.Flue gas after two stages pretreatment subsequently enters electrion and gathered dust
Section, the section are made up of multistage stainless steel cathode frame, and are powered by the power supply of high-energy-density, and stable provide produces high-pressure electrostatic
High density energy needed for field and high-density particles, and form is matched somebody with somebody by new power supply technique and its optimization pole, further lifting
Strength of discharge, so as to improve the charged speed of particle and carrying capacity；Spray intermittent duty in system operation is cleaned simultaneously,
For cleaning dust collecting pole plate, due to make use of EHD to promote the condensate to be formed, the water consumption of rinse-system can be greatly reduced.It is complete
Enter heating heat-exchanger rig 9 (post processing section) into the clean flue gas after particulate removal, the section is made up of pipe heat exchanger, is removed with electricity
The preposition temperature-reducing heat-exchange device 1 of the charge reinforced system of dirt final stage pulse communicates, and is used to improve flue-gas temperature here, effectively prevents
White cigarette caused by flue-gas temperature is too low and equipment corrosion problem.
After the system, the average removal efficiency of particulate matter in flue gas reaches more than 99.99%, granular material discharged concentration
Less than 0.5mg/m3, SO2Concentration of emission is less than 3mg/m3。
Embodiment 2
Using horizontal type electric dust collector, flue gas flow 15000Nm3/s。
Reference picture 2, as described in Example 1, the present embodiment difference from Example 1 is system：Sedimentation basin 15 is with giving up
There is no wastewater heat exchange device 16 between water humidifying device 2.
After the system, the average removal efficiency of particulate matter in flue gas reaches more than 99.5%, granular material discharged concentration
Less than 1mg/m3, SO2Concentration of emission is less than 5mg/m3。
Claims (5)
- A kind of 1. Combined Electrostatic dust pelletizing system of temperature/more field strength of wet regulation and control, it is characterised in that：The Combined Electrostatic dust pelletizing system Including sequentially connect temperature adjustment humidification system, the charge reinforced system of electric precipitation final stage pulse, layering desulfurization collaboration humidification dedusting system The charge reinforced system of particulate matter that system and humidification flow, the temperature adjustment humidification system includes temperature-reducing heat-exchange device and waste water increases Wet device, the outlet of temperature-reducing heat-exchange device are connected with the import of waste water humidifying device；The electric precipitation final stage pulse is charged strong Change system includes several continuous electrostatic fields, and the power supply of the last pole electric field in the electrostatic field is high-voltage pulse power source；It is described Layering desulfurization collaboration humidification dust pelletizing system is connected with desulfurization wastewater pond, and the charge reinforced system of particulate matter is connected with waste water tank, The waste water tank is connected with desulfurization wastewater pond, and desulfurization wastewater pond sequentially passes through neutralization pond, flocculation basin, sedimentation basin and waste water and is humidified Device is connected, and the waste water tank is also connected with cyclic water tank；The charge reinforced system of particulate matter includes condenser pipe, drop Spray, cathode frame and cleaning spray, the drop spray, cleaning spray are connected with cyclic water tank respectively；The particle Heating heat-exchanger rig, the heating heat-exchanger rig and temperature-reducing heat-exchange device phase are provided with after the charge reinforced system of thing, before chimney Connection.
- 2. the Combined Electrostatic dust pelletizing system of temperature according to claim 1/more field strength of wet regulation and control, it is characterised in that：It is described Wastewater heat exchange device is provided between sedimentation basin and waste water humidifying device.
- 3. the Combined Electrostatic dust pelletizing system of temperature according to claim 1/more field strength of wet regulation and control, it is characterised in that：It is described Double fluid atomization nozzle is provided with waste water humidifying device, the double fluid atomization nozzle is connected with desulfurization wastewater pond.
- 4. the Combined Electrostatic dust pelletizing system of temperature according to claim 1/more field strength of wet regulation and control, it is characterised in that：It is described The charge reinforced system of particulate matter uses horizontal type electric dust collector, the condenser pipe be arranged on horizontal type electric dust collector it is horn-like enter it is intraoral, The horn-like import end is provided with two layers of airflow uniform distribution plate, and its spacing is controlled between 100~150mm；The drop spray Airflow uniform distribution plate rear is arranged in, the cleaning spray is arranged on above cathode frame.
- 5. the Combined Electrostatic dust pelletizing system of temperature according to claim 4/more field strength of wet regulation and control, it is characterised in that：It is described Condenser pipe is formed using 25 × 1.5mm of Φ stainless steel serpentine coil, and the drop spray is installed on vertical with flue gas direction On support, parallel tube array, the nozzle interlaced arrangement of adjacent tubes row are arranged on support.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720528083.0U CN206824016U (en) | 2017-05-12 | 2017-05-12 | A kind of Combined Electrostatic dust pelletizing system of temperature/more field strength of wet regulation and control |
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| CN201720528083.0U CN206824016U (en) | 2017-05-12 | 2017-05-12 | A kind of Combined Electrostatic dust pelletizing system of temperature/more field strength of wet regulation and control |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107115967A (en) * | 2017-05-12 | 2017-09-01 | 浙江大学 | The Combined Electrostatic dust pelletizing system of temperature/many field strength of wet regulation and control |
| CN109046780A (en) * | 2018-07-22 | 2018-12-21 | 华电电力科学研究院有限公司 | A kind of collaboration condensation wet electrical dust precipitator and its working method |
-
2017
- 2017-05-12 CN CN201720528083.0U patent/CN206824016U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107115967A (en) * | 2017-05-12 | 2017-09-01 | 浙江大学 | The Combined Electrostatic dust pelletizing system of temperature/many field strength of wet regulation and control |
| CN107115967B (en) * | 2017-05-12 | 2019-05-31 | 浙江大学 | Temperature/wet regulation more field strength Combined Electrostatic dust pelletizing system |
| CN109046780A (en) * | 2018-07-22 | 2018-12-21 | 华电电力科学研究院有限公司 | A kind of collaboration condensation wet electrical dust precipitator and its working method |
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