CN104801159B - A kind of plasma flue gas desulfurization denitration dust-removing demercuration integrated apparatus - Google Patents
A kind of plasma flue gas desulfurization denitration dust-removing demercuration integrated apparatus Download PDFInfo
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- CN104801159B CN104801159B CN201510243651.8A CN201510243651A CN104801159B CN 104801159 B CN104801159 B CN 104801159B CN 201510243651 A CN201510243651 A CN 201510243651A CN 104801159 B CN104801159 B CN 104801159B
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 72
- 239000003546 flue gas Substances 0.000 title claims abstract description 72
- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 30
- 230000023556 desulfurization Effects 0.000 title claims abstract description 30
- 230000005684 electric field Effects 0.000 claims abstract description 98
- 238000006243 chemical reaction Methods 0.000 claims abstract description 69
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 62
- 239000007789 gas Substances 0.000 claims abstract description 61
- 239000003344 environmental pollutant Substances 0.000 claims abstract description 24
- 231100000719 pollutant Toxicity 0.000 claims abstract description 24
- 238000009434 installation Methods 0.000 claims abstract description 13
- 239000002245 particle Substances 0.000 claims abstract description 12
- 238000005354 coacervation Methods 0.000 claims abstract description 8
- 238000002347 injection Methods 0.000 claims abstract description 6
- 239000007924 injection Substances 0.000 claims abstract description 6
- 238000004140 cleaning Methods 0.000 claims description 18
- 230000008602 contraction Effects 0.000 claims description 15
- 239000010865 sewage Substances 0.000 claims description 11
- 238000009826 distribution Methods 0.000 claims description 7
- 239000000523 sample Substances 0.000 claims description 6
- 238000011010 flushing procedure Methods 0.000 claims description 5
- 230000005611 electricity Effects 0.000 claims description 4
- 150000002500 ions Chemical class 0.000 claims description 3
- 238000009827 uniform distribution Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims 1
- 238000005265 energy consumption Methods 0.000 abstract description 8
- 239000000443 aerosol Substances 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 4
- 238000010521 absorption reaction Methods 0.000 abstract description 3
- 230000009467 reduction Effects 0.000 abstract description 3
- 239000000428 dust Substances 0.000 description 14
- 239000000779 smoke Substances 0.000 description 12
- 239000011236 particulate material Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 239000007787 solid Substances 0.000 description 6
- 238000009835 boiling Methods 0.000 description 5
- 238000000746 purification Methods 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 4
- 239000000356 contaminant Substances 0.000 description 4
- 150000003254 radicals Chemical class 0.000 description 4
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 3
- 229910052753 mercury Inorganic materials 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 2
- 229910052921 ammonium sulfate Inorganic materials 0.000 description 2
- 235000011130 ammonium sulphate Nutrition 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 235000019504 cigarettes Nutrition 0.000 description 2
- 230000005686 electrostatic field Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229910017604 nitric acid Inorganic materials 0.000 description 2
- PAWQVTBBRAZDMG-UHFFFAOYSA-N 2-(3-bromo-2-fluorophenyl)acetic acid Chemical compound OC(=O)CC1=CC=CC(Br)=C1F PAWQVTBBRAZDMG-UHFFFAOYSA-N 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- 208000010086 Hypertelorism Diseases 0.000 description 1
- 206010020771 Hypertelorism of orbit Diseases 0.000 description 1
- 206010057855 Hypotelorism of orbit Diseases 0.000 description 1
- 206010054949 Metaplasia Diseases 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 210000001367 artery Anatomy 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- CDEIGFNQWMSEKG-UHFFFAOYSA-M chloro-[4-[(2-hydroxynaphthalen-1-yl)diazenyl]phenyl]mercury Chemical compound OC1=CC=C2C=CC=CC2=C1N=NC1=CC=C([Hg]Cl)C=C1 CDEIGFNQWMSEKG-UHFFFAOYSA-M 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
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- 230000006872 improvement Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- RJIWZDNTCBHXAL-UHFFFAOYSA-N nitroxoline Chemical compound C1=CN=C2C(O)=CC=C([N+]([O-])=O)C2=C1 RJIWZDNTCBHXAL-UHFFFAOYSA-N 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
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- Treating Waste Gases (AREA)
- Plasma Technology (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
The invention discloses a kind of plasma flue gas desulfurization denitration dust-removing demercuration integrated apparatus, including housing, purifier and control system；Wherein, purifier is arranged in housing, including coacervation device and plasma reaction device, coacervation device includes being used to form the cohesion electric field arrangement for condensing electric field and the reaction water installations for providing water fog particle to cohesion electric field, and plasma reaction device includes the plasma electric field device for forming plasma reaction electric field and the rinse water arrangement being rinsed for the pollutant that article on plasma electric field arrangement is collected；Control system includes cohesion power supply, plasma power supply and the controller for controlling reaction water installations injection flow rate and power supply output power；Said apparatus is not only simple in structure, and floor space is small, and employs wet method reaction, can be formed aerosol, is SO2、NOXAbsorption Deng gas pollutant provides reaction surface, reaction efficiency, reduction energy consumption and cost is improved, with more preferable economy.
Description
Technical field
The present invention relates to flue gas purifying equipment technical field, more particularly to a kind of plasma flue gas desulfurization denitration dust-removing demercuration
Integrated apparatus.
Background technology
In recent years, because environmental protection work situation is increasingly serious, the pollutant emission standard that country and place are put into effect is cured
Plus strict, not only SO2、NOX, can also be to cigarette in future and the concentration of emission limit value of traditional pollutant such as dust is further reduced
Mercury and PM2.5 in gas propose that control is required.
In order to meet the pollutant emission standard of continuous improvement, the industrial smoke such as thermal power plant discharges enterprise after one
After secondary environmentally friendly upgrading, often land used is nervous for on-site, therefore, a kind of less plasma of new floor space
The a variety of thing integrated purifying technologies of staining of flue gas are as focus of concern.In the prior art, a variety of dyes of plasma flue gas
Dirt integrated purifying technology is the plasma that produces using gas discharge to produce the technology of chemical reaction.Gas discharge exists
Plasma is produced between electrode, neutral molecule is excited into free radical, then using free radical by SO2Become SO3, NOXBecome
HNO3, simple substance Hg becomes HgO.SO3And HNO3Can be further with adding the NH in reactor3Gas changes into ammonium sulfate and nitre
Sour ammonium, ammonium sulfate, ammonium nitrate and HgO are solid matters, can be collected in the electrostatic field that gas discharge is produced, so that
The desulphurization denitration dedusting function of flue gas is realized, however, the chemical reaction of above-mentioned technology occurs in the gas phase, it is dry type reaction, dress
The energy consumption put is higher, and power consumption is about the 2% of power generating capacity.Although occurring in that linguistic term to this method recently, will etc. from
Daughter combined catalyst removes SO2And NOX, but catalyst prepare it is complicated, expensive, be not suitable for large-scale engineering should
With.
Therefore, how a kind of flue gas desulfurization denitration dust-removing device is provided, relatively low energy consumption and cost is made it have, with more
Good economy, as those skilled in the art's important technological problems urgently to be resolved hurrily.
The content of the invention
In view of this, the invention provides a kind of plasma flue gas desulfurization denitration dust-removing demercuration integrated apparatus, to reach
Make it have relatively low energy consumption and cost, the purpose with more preferable economy.
To achieve the above object, the present invention provides following technical scheme：
A kind of plasma flue gas desulfurization denitration dust-removing demercuration integrated apparatus, including：
Housing, is provided with the exit and entrance for being connected with flue, and bottom is provided with discharge outlet；
It is arranged on the purifier in the housing, including the coacervation device being distributed along the housing inlet port to Way out
And plasma reaction device, the coacervation device for forming cohesion electric field including making the particulate material in flue gas powered
Electric field arrangement and the reaction water installations for providing water fog particle to cohesion electric field are condensed, the plasma reaction device includes
For forming the plasma electric field device of plasma reaction electric field and pollution for being collected to the plasma electric field device
The rinse water arrangement that thing is rinsed；
Control system, including for powered to the cohesion electric field arrangement cohesion power supply, for the plasma electric
Plasma power supply and powered for control reaction water installations injection flow rate and cohesion power supply and plasma power supply that field device is powered
The controller of power.
It is preferred that, the cohesion electric field arrangement and the plasma electric field device are long on the housing including fixation
Degree direction is arranged along the housing inlet port to Way out and width is arranged perpendicular to multiple parallel ground connection pole plates of paper
And the discharge plume at center is arranged positioned at two neighboring ground connection pole plate.
It is preferred that, the rinse water arrangement includes the flushing water distribution water pipe being connected by supply channel with water source, described
The top that water distribution water pipe is arranged on the ground connection pole plate row of the plasma electric field device is rinsed, is provided with multiple along flue gas
The apopore of flow direction distribution.
It is preferred that, the power supply polarity of the cohesion power supply is positive pole, and the rated voltage of DC base voltage part is 50kV, pulse
Voltage is 50KV, and pulse front edge is less than 100ms, and repetition rate is more than 100Hz.
It is preferred that, the power supply polarity of the plasma power supply is negative pole, and the rated voltage of DC base voltage part is 50kV, arteries and veins
Voltage is rushed for 50KV, pulse front edge is less than 100ns, pulsewidth is less than 500ns, repetition rate 1000Hz.
It is preferred that, the heteropole of the cohesion electric field arrangement and the plasma electric field device is away from for 150mm.
It is preferred that, the discharge plume includes wire body and is distributed in wire body both sides towards the multiple of the ground connection pole plate row
Discharge tip.
It is preferred that, positioned at the distance between two neighbouring discharge tips of the wire body homonymy be heteropole away from 1.2~1.4
Times.
It is preferred that, the housing includes gas cleaning conversion zone, gas feed diffuser, gas vent contraction section and dirt
Water collection bucket, the purifier is arranged on the gas cleaning conversion zone, the gas feed diffuser, the gas vent
Contraction section and the sewage collecting bucket are the frustum structure with big end and small end, the entrance and outlet difference of the housing
It is arranged on the small end of the gas feed diffuser and the small end of the gas vent contraction section, the gas feed diffuser
Big end and the big end of the gas vent contraction section be connected to the two ends of the gas cleaning conversion zone, the housing
Discharge outlet be arranged on the small end of the sewage collecting bucket, the big end of the sewage collecting bucket and the gas cleaning conversion zone
Bottom is connected.
It is preferred that, between the gas cleaning conversion zone and the gas feed diffuser and the gas cleaning reaction
Airflow uniform distribution plate is provided between section and the gas vent contraction section.
It is preferred that, the control system also includes the pressure sensor and temperature sensor being connected with the controller,
The end of probe of the pressure sensor and the temperature sensor be respectively positioned on the cohesion electric field arrangement in the housing with
And between the plasma electric field device.
It is preferred that, the control system also includes the pollutant concentration sensor being connected with the controller, the pollution
The end of probe of thing concentration sensor is arranged on the exit of the housing.
It can be seen from the above technical proposal that the plasma flue gas desulfurization denitration dust-removing demercuration that the present invention is provided integrally is disguised
Put, including housing, purifier and control system；Wherein, be provided with housing outlet for being connected with flue and
Entrance, bottom is provided with discharge outlet；Purifier is arranged in housing, including the cohesion being distributed along housing inlet port to Way out
Device and plasma reaction device, coacervation device include making the particulate material in flue gas powered for forming cohesion electric field
Electric field arrangement and the reaction water installations for providing water fog particle to cohesion electric field are condensed, plasma reaction device includes being used for
Form the plasma electric field device of plasma reaction electric field and rushed for the pollutant that article on plasma electric field arrangement is collected
The rinse water arrangement washed；Cohesion power supply that control system includes being used for powering to cohesion electric field arrangement, for plasma electric field
Plasma power supply that device is powered and for controlling reaction water installations injection flow rate and cohesion power supply and plasma power supply to power work(
The controller of rate；
In use, when containing dust, SO2、NOX, the pollutant such as mercury and PM2.5 flue gas entered by housing inlet port
When entering the cohesion electric field of cohesion electric field arrangement formation in housing, the water smoke sprayed with reaction water installations is mixed, and controller control is solidifying
Poly- power supply is powered to cohesion electric field arrangement, in the presence of cohesion electric field, the particulate material such as fine dust, PM2.5 in flue gas,
A part with it is negatively charged after the electron collision in plasma, band is being just after the nucleus collision in another part and plasma
Electricity.With water smoke cohesion occurs for the particulate material after powered, and fine dust, PM2.5 and water smoke are condensed into larger particle, this
Larger particle is planted to be easier to be collected in rear class electric field.And these are suspended in water smoke and bulky grain in flue gas, form a large amount of
Aerosol there is provided absorb SO2、NOXDeng the reaction surface of gas pollutant；Then, by condensing the flue gas that electric field treatment is crossed
Enter plasma reaction electric field with the mixture of water smoke, be adsorbed onto the SO of Aerosol Surface2And NOXIn the catalytic action of free radical
Under, change into higher oxidation state and be only absorbed by the water, and the plasma oxygen metaplasia that the simple substance Hg in flue gas is produced by gas discharge
Into solid matter HgO, the particle such as dust, the PM2.5 condensed with prime electric field is together collected in plasma reaction electric field
Get off, it is achieved thereby that the purification of flue gas, the flue gas after purification, are discharged by housing outlets；As can be seen here, the present invention provide etc.
Ion flue gas desulfurization denitration dust-removing demercuration integrated apparatus is not only simple in structure, and floor space is small, and employ wet method reaction,
Aerosol can be formed, is SO2、NOXDeng gas pollutant absorption provide reaction surface, improve reaction efficiency, reduction energy consumption and
Cost, with more preferable economy.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is plasma flue gas desulfurization denitration dust-removing demercuration integrated apparatus structural representation provided in an embodiment of the present invention
Figure.
Embodiment
The invention provides a kind of plasma flue gas desulfurization denitration dust-removing demercuration integrated apparatus, with reach make it have compared with
Low energy consumption and cost, the purpose with more preferable economy.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Referring to Fig. 1, Fig. 1 is plasma flue gas desulfurization denitration dust-removing demercuration integrated apparatus provided in an embodiment of the present invention
Structural representation.The direction of arrow is flow of flue gas direction in figure.
The invention provides a kind of plasma flue gas desulfurization denitration dust-removing demercuration integrated apparatus, including housing 1, purification dress
Put and control system 4.
Wherein, the effect of housing 1 is to form the passage for supplying flow of flue gas and support and protect the electrode assembly in it, housing
The exit and entrance for being connected with flue is provided with 1, bottom is provided with discharge outlet；Purifier is arranged on housing 1
Interior, including the coacervation device 2 and plasma reaction device 3 being distributed along the entrance of housing 1 to Way out, coacervation device 2 includes
Make the powered cohesion electric field arrangement 21 of the particulate material in flue gas and for being carried to cohesion electric field for forming cohesion electric field
For the reaction water installations 22 of water fog particle, plasma reaction device 3 includes the plasma electric for being used to form plasma reaction electric field
Field device 31 and the rinse water arrangement 32 being rinsed for the pollutant that article on plasma electric field arrangement 31 is collected；Control system
4 include being used for condensing power supply 41, the plasma for powering to plasma electric field device 31 to what cohesion electric field arrangement 21 was powered
Power supply 45 and the control for controlling the reaction injection flow rate of water installations 22 and cohesion power supply 41 and the output power of plasma power supply 45
Device 43.
Compared with prior art, the plasma flue gas desulfurization denitration dust-removing demercuration integrated apparatus that the present invention is provided, makes
During, when containing dust, SO2、NOX, the pollutant such as mercury and PM2.5 flue gas entered by housing inlet port in housing 1 and condense
During the cohesion electric field of the formation of electric field arrangement 21, the water smoke sprayed with reaction water installations 22 is mixed, the control cohesion power supply of controller 43
41 power to cohesion electric field arrangement 21, in the presence of cohesion electric field, the particulate material such as fine dust, PM2.5 in flue gas, one
Part and negatively charged after the electron collision in plasma, another part and positively charged after the nucleus collision in plasma.
With water smoke cohesion occurs for the particulate material after powered, and fine dust, PM2.5 and water smoke are condensed into larger particle, this
Larger particle is easier to be collected in rear class electric field.And these are suspended in water smoke and bulky grain in flue gas, formed substantial amounts of
There is provided absorb SO for aerosol2、NOXDeng the reaction surface of gas pollutant；Then, through cohesion the flue gas crossed of electric field treatment with
The mixture of water smoke enters plasma reaction electric field, is adsorbed onto the SO of Aerosol Surface2And NOXUnder the catalytic action of free radical,
Higher oxidation state is changed into be only absorbed by the water, and the simple substance Hg in flue gas is generated by the plasma oxidation that gas discharge is produced
The particles such as solid matter HgO, dust, the PM2.5 condensed with prime electric field together are collected in plasma reaction electric field,
It is achieved thereby that the purification of flue gas, the flue gas after purification, discharge, the article on plasma electric field of rinse water arrangement 32 dress are exported by housing 1
Put the pollutant that 31 collections get off to be rinsed, pollutant is discharged with flushing water through the discharge outlet of housing 1；As can be seen here, it is of the invention
The plasma flue gas desulfurization denitration dust-removing demercuration integrated apparatus of offer is not only simple in structure, and floor space is small, and employs
Wet method is reacted, and can be formed aerosol, is SO2、NOXAbsorption Deng gas pollutant provides reaction surface, improves reaction efficiency,
Energy consumption and cost are reduced, with more preferable economy.
Various structures can be used by condensing electric field arrangement 21 and plasma electric field device 31, in embodiments of the present invention,
Cohesion electric field arrangement 21 and plasma electric field device 31 include being fixed on housing 1 length direction along the entrance of housing 1 to going out
Mouth direction is arranged and width is perpendicular to multiple parallel ground connection pole plates rows of paper and positioned at two neighboring ground connection pole plate row
The discharge plume at center.
Further, in order to be removed while ensureing gaseous state and solid contaminant, in embodiments of the present invention, plasma cigarette
It is the pulse power that power supply 41 and plasma power supply 45 are condensed used in desulfurization denitration dust collecting demercuration integrated apparatus, and institute is defeated
The voltage gone out is by DC base voltage plus pulse combination.DC base voltage therein is mainly the collection of the solid contaminants such as dust and set
Put, segment pulse is to be set to denitration and the generation of desulfurization plasma.Power supply can be de- according to plasma flue gas
The size of sulphur denitration dust collecting demercuration integrated apparatus and the treating capacity of flue gas and use different specifications, in the embodiment of the present invention
In, the rated voltage for condensing the DC base voltage part of power supply 41 is 50kV, and pulse voltage is 50KV, and pulse front edge is less than 100ms,
Repetition rate is more than 100Hz；The rated voltage of the DC base voltage part of plasma power supply 45 is 50kV, and pulse voltage is 50KV,
Pulse front edge is less than 100ns, pulsewidth and is less than 500ns, and repetition rate 1000Hz, the power supply of this specification can not only ensure electricity
The performance of field, and realization is easier with prior art.
It can be seen from electrostatic field general principle, if the water vapour content of flue gas is big in electric field or dust concentration is high, all
The space charge in electric field can be made to be maintained at a higher level, and this is easy for forming corona blocking phenomenon, meeting when serious
Make the secondary current of electric field close to zero, particularly in the electric field powered as plasma reaction electric field using the pulse power,
The possibility for occurring corona blocking is higher, therefore, in order that the operation of plasma reaction electric field is more stable, reduction smoke inlet side
The possibility of the corona blocking of electric field, in embodiments of the present invention, rinse water arrangement 32 are not entered to whole plasma reaction electric field
Row is rinsed, but uses the flushing water distribution water pipe being connected by supply channel with water source, is rinsed water distribution water pipe and is arranged on
The top of the ground connection pole plate row of ion electric field arrangement 31, is provided with multiple apopores along flow of flue gas directional spreding,
During use, water is flowed out from apopore under a certain pressure, and only earthing pole plate row is rinsed, and is being realized to collecting
Pollutant while be rinsed, reduce the water vapour content in flue gas, it is to avoid the generation of corona blocking phenomenon.
The power supply polarity of power supply generally has positive polarity and negative polarity, when the power supply polarity of power supply is negative polarity, generation
Corona polarity is negative, and this causes the voltage operating range of electric field to broaden, i.e. the difference of discharge inception voltage and breakdown voltage is larger, and this just leads
It is caused to have good charged and collecting effect to coarse powder dirt, although to disclosure satisfy that the use requirement of general electric cleaner, but
It is poor for the charged effect of fine grained, it is difficult to which the use for meeting plasma flue gas desulfurization denitration dust-removing demercuration integrated apparatus will
Ask, therefore, in embodiments of the present invention, the power supply polarity of cohesion power supply 41 is positive pole, to be strengthened using positive corona to fine dust
With PM2.5 removal effect, and the power supply polarity of plasma power supply 45 be negative pole.
For the stable operation of electric field arrangement energy, it is necessary to make the center that discharge plume is maintained between ground connection pole plate row.
Error of the equipment in manufacture and installation process can cause discharge plume to deviate the center between ground connection pole plate row, and
Large-scale device, error can be bigger.In order to ensure less position relative deviation, large scale equipment needs bigger heteropole away from that is,
The distance of discharge plume distance ground connection pole plate row, just can guarantee that the stable operation of device.On the other hand, bigger heteropole is away from again
Need the power supply of more voltage levels to power, may result in the cost of increase power-supply device, therefore, consider electric field fortune
After row stability and cost factor, the heteropole of cohesion electric field arrangement 21 and plasma electric field device 31 in the embodiment of the present invention
Away from for 150mm.
Discharge plume can use various structures, in embodiments of the present invention, and discharge plume includes wire body and is distributed in
Multiple discharge tips of the wire body both sides towards ground connection pole plate row.Further, positioned at two neighbouring discharge tips of wire body homonymy
The distance between for heteropole away from 1.2~1.4 times, so, i.e., can avoid hypertelorism cause electric field generation corona tail off,
Hypotelorism guiding discharge tip can be avoided mutually to suppress again, so that the corona discharge power for the electric field that electric field arrangement is produced is more
Greatly, preferable performance can be played in small space.
Housing 1 can use various structures, in embodiments of the present invention, and housing 1 includes gas cleaning conversion zone 14, gas
Import diffuser 11, gas vent contraction section 15 and sewage collecting bucket 13, purifier are arranged on gas cleaning conversion zone 14,
Gas feed diffuser 11, gas vent contraction section 15 and sewage collecting bucket 13 are the frustum knot with big end and small end
Structure, the entrance of housing 1 and outlet be separately positioned on gas feed diffuser 11 small end and gas vent contraction section 15 it is small
End, the big end of gas feed diffuser 11 and the big end of gas vent contraction section 15 are connected to gas cleaning conversion zone 14
Two ends, the discharge outlet of housing 1 is arranged on the small end of sewage collecting bucket 13, and big end and the gas cleaning of sewage collecting bucket 13 are reacted
The bottom connection of section 14.
Further, in order that flue gas spreads, it is uniformly distributed in the electric field, so that reaction is more abundant, improve anti-
Efficiency is answered, in embodiments of the present invention, between gas cleaning conversion zone 14 and gas feed diffuser 11 and gas cleaning is anti-
Answer and airflow uniform distribution plate 12 is provided between section 14 and gas vent contraction section 15.
Stable for plasma reaction is carried out, it is necessary to which the flue-gas temperature in plasma reaction electric field is controlled into the boiling in water
Point is following, to ensure in the region with the presence of aqueous water, in order to reach this purpose, in embodiments of the present invention, control system
System 4 also includes the pressure sensor 44 and temperature sensor 42 being connected with controller 43, and pressure sensor 44 and temperature are passed
The end of probe of sensor 42 is respectively positioned between the cohesion electric field arrangement 21 in housing 1 and plasma electric field device 31, is being used
42 pairs of Cheng Zhong, pressure sensor 44 and temperature sensor flowed to from cohesion electric field the flue gas of plasma reaction electric field pressure and
Temperature is detected and by data feedback that into controller 43 controller 43 is calculated in the pressure according to the flue gas pressures value detected
The boiling temperature calculated and the flue-gas temperature that detects, are then compared by the boiling temperature of corresponding water under power, if
Flue-gas temperature is higher than the boiling temperature calculated, and controller 43 increases the injection flow rate of 22 pairs of cohesion electric fields of reaction water installations, until
Flue-gas temperature is reduced to below boiling temperature, is carried out so as to ensure that plasma reaction can be stablized.
Further, in embodiments of the present invention, the pollutant concentration that control system 4 also includes being connected with controller 43 is passed
Sensor 46, the end of probe of pollutant concentration sensor 46 is arranged on the exit of housing 1, when in use, when in exiting flue gas
When solid contaminant concentration is higher than desired value, increase the DC base voltage of power supply；When the gaseous contaminant concentration in exiting flue gas is high
When desired value, increase the pulse frequency of power supply, so, the outlet that controller 43 is detected according to pollutant concentration sensor 46
The pollutant concentration of flue gas controls the output power of plasma power supply 45 and cohesion power supply 41, so as to ensure suitable removing effect
Rate, reduces energy consumption.
Carried out in order to which plasma reaction can be stablized, the flow pattern of flue gas needs to keep turbulent flow in electric field, and too fast flue gas stream
Speed can cause the vibrations of internal electrode again, influence the safety and stably of device.Therefore, the preferable flow velocity of flue gas is 1- in electric field
3m/s。
The embodiment of each in this specification is described by the way of progressive, and what each embodiment was stressed is and other
Between the difference of embodiment, each embodiment identical similar portion mutually referring to.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or using the present invention.
A variety of modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The most wide scope caused.
Claims (12)
1. a kind of plasma flue gas desulfurization denitration dust-removing demercuration integrated apparatus, it is characterised in that including：
Housing (1), is provided with the exit and entrance for being connected with flue, and bottom is provided with discharge outlet；
It is arranged on the purifier in the housing (1), including the cohesion dress being distributed along the housing (1) entrance to Way out
(2) and plasma reaction device (3) are put, the coacervation device (2) includes making the particle in flue gas for forming cohesion electric field
The powered cohesion electric field arrangement (21) of shape material and the reaction water installations (22) for providing water fog particle to cohesion electric field, institute
Stating plasma reaction device (3) includes being used to form the plasma electric field device (31) of plasma reaction electric field and for institute
State the rinse water arrangement (32) that the pollutant of plasma electric field device (31) collection is rinsed；
Control system (4), including for the cohesion power supply (41) to cohesion electric field arrangement (21) power supply, for described etc.
Plasma power supply (45) and react water installations (22) injection flow rate and cohesion electricity for control that ion electric field arrangement (31) is powered
Source (41) and the controller (43) of plasma power supply (45) output power, the cohesion power supply (41) and the plasma power supply
(45) it is the pulse power, and the power supply polarity of the cohesion power supply (41) is positive pole, the power supply of the plasma power supply (45)
Polarity is negative pole.
2. plasma flue gas desulfurization denitration dust-removing demercuration integrated apparatus according to claim 1, it is characterised in that described
Cohesion electric field arrangement (21) and the plasma electric field device (31) include being fixed on length direction edge on the housing (1)
Housing (1) entrance is arranged to Way out and width is arranged and is located at perpendicular to multiple parallel ground connection pole plates of paper
Two neighboring ground connection pole plate arranges the discharge plume at center.
3. plasma flue gas desulfurization denitration dust-removing demercuration integrated apparatus according to claim 2, it is characterised in that described
Rinse water arrangement (32) includes the flushing water distribution water pipe being connected by supply channel with water source, and the flushing water distribution water pipe is set
Put in the top of the ground connection pole plate row of the plasma electric field device (31), be provided with multiple along flow of flue gas directional spreding
Apopore.
4. plasma flue gas desulfurization denitration dust-removing demercuration integrated apparatus according to claim 2, it is characterised in that described
The rated voltage for condensing the DC base voltage part of power supply (41) is 50kV, and pulse voltage is 50KV, and pulse front edge is less than 100ms,
Repetition rate is more than 100Hz.
5. plasma flue gas desulfurization denitration dust-removing demercuration integrated apparatus according to claim 2, it is characterised in that described
The rated voltage of the DC base voltage part of plasma power supply (45) is 50kV, and pulse voltage is 50KV, and pulse front edge is less than
100ns, pulsewidth is less than 500ns, repetition rate 1000Hz.
6. plasma flue gas desulfurization denitration dust-removing demercuration integrated apparatus according to claim 2, it is characterised in that described
The heteropole of electric field arrangement (21) and the plasma electric field device (31) is condensed away from for 150mm.
7. plasma flue gas desulfurization denitration dust-removing demercuration integrated apparatus according to claim 6, it is characterised in that described
Discharge plume includes wire body and is distributed in wire body both sides towards multiple discharge tips of the ground connection pole plate row.
8. plasma flue gas desulfurization denitration dust-removing demercuration integrated apparatus according to claim 7, it is characterised in that be located at
The distance between two neighbouring discharge tips of the wire body homonymy be heteropole away from 1.2~1.4 times.
9. plasma flue gas desulfurization denitration dust-removing demercuration integrated apparatus according to claim 1, it is characterised in that described
Housing (1) includes gas cleaning conversion zone (14), gas feed diffuser (11), gas vent contraction section (15) and sewage and received
Collection bucket (13), the purifier is arranged on the gas cleaning conversion zone (14), the gas feed diffuser (11), described
Gas vent contraction section (15) and the sewage collecting bucket (13) are the frustum structure with big end and small end, the housing
(1) entrance and outlet is separately positioned on the small end and the gas vent contraction section of the gas feed diffuser (11)
(15) small end, the big end of the gas feed diffuser (11) and the big end of the gas vent contraction section (15) connect respectively
The two ends of the gas cleaning conversion zone (14) are connected on, the discharge outlet of the housing (1) is arranged on the sewage collecting bucket (13)
Small end, the big end of the sewage collecting bucket (13) is connected with the bottom of the gas cleaning conversion zone (14).
10. plasma flue gas desulfurization denitration dust-removing demercuration integrated apparatus according to claim 9, it is characterised in that institute
State between gas cleaning conversion zone (14) and the gas feed diffuser (11) and the gas cleaning conversion zone (14) with
Airflow uniform distribution plate (12) is provided between the gas vent contraction section (15).
11. plasma flue gas desulfurization denitration dust-removing demercuration integrated apparatus according to claim 1, it is characterised in that institute
State pressure sensor (44) and temperature sensor (42) that control system (4) also includes being connected with the controller (43), institute
The end of probe for stating pressure sensor (44) and the temperature sensor (42) is respectively positioned on cohesion electricity in the housing (1)
Between field device (21) and the plasma electric field device (31).
12. plasma flue gas desulfurization denitration dust-removing demercuration integrated apparatus according to claim 11, it is characterised in that institute
State the pollutant concentration sensor (46) that control system (4) also includes being connected with the controller (43), the pollutant concentration
The end of probe of sensor (46) is arranged on the exit of the housing (1).
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|---|---|---|---|
| CN201510243651.8A CN104801159B (en) | 2015-05-13 | 2015-05-13 | A kind of plasma flue gas desulfurization denitration dust-removing demercuration integrated apparatus |
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| CN201510243651.8A CN104801159B (en) | 2015-05-13 | 2015-05-13 | A kind of plasma flue gas desulfurization denitration dust-removing demercuration integrated apparatus |
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| CN104801159B true CN104801159B (en) | 2017-08-11 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105108242A (en) * | 2015-08-31 | 2015-12-02 | 广州市美控电子科技有限公司 | Annular multi-point high-frequency high-voltage electrode for waste incineration pollution-free treating system |
| CN105413365B (en) * | 2015-11-04 | 2017-12-08 | 胡译文 | A kind of air contaminant treatment device and method |
| CN106824540A (en) * | 2017-01-18 | 2017-06-13 | 浙江浙能嘉华发电有限公司 | A kind of wet electric closed-loop control power-saving method |
| CN107441898A (en) * | 2017-09-25 | 2017-12-08 | 绵阳欣隆源环保科技有限公司 | A kind of impulse electric corona plasma flue gas desulfurization and denitrification integrated apparatus |
| CN108283869B (en) * | 2018-02-09 | 2020-03-06 | 上海睿筑环境科技有限公司 | Method for treating pollutants in gas by plasma |
| CN109569217A (en) * | 2018-12-19 | 2019-04-05 | 杭州双良中荷环保科技有限公司 | Lotus root closes oxidation NO cooperation-removal combined pollutant device and removal methods |
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| CN100531865C (en) * | 2004-03-29 | 2009-08-26 | 广东杰特科技发展有限公司 | Simultaneous purification method of streamer discharge plasma flue gas pollutants |
| CN1883758B (en) * | 2005-06-23 | 2010-10-20 | 李德国 | A purification device capable of removing various gaseous solid pollutants |
| CN203448181U (en) * | 2013-08-29 | 2014-02-26 | 南京龙源环保有限公司 | Combined type electric demister |
| CN104549741A (en) * | 2013-10-29 | 2015-04-29 | 杭州天明环保工程有限公司 | Wet electrostatic dust collector |
| CN103990359B (en) * | 2014-06-06 | 2016-08-17 | 北京航空航天大学 | Utilize nitrogen oxides and the method and apparatus of droplet in plasma purification wet desulphurization aerosol |
| CN204601964U (en) * | 2015-05-13 | 2015-09-02 | 杭州天明环保工程有限公司 | A kind of plasma flue gas desulfurization denitration dust-removing demercuration integrated apparatus |
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