CN108434924A - A kind of flue gas eliminating white smoke system and method - Google Patents
A kind of flue gas eliminating white smoke system and method Download PDFInfo
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- CN108434924A CN108434924A CN201810580242.0A CN201810580242A CN108434924A CN 108434924 A CN108434924 A CN 108434924A CN 201810580242 A CN201810580242 A CN 201810580242A CN 108434924 A CN108434924 A CN 108434924A
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- flue gas
- air
- flue
- condenser
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 239
- 239000003546 flue gas Substances 0.000 title claims abstract description 228
- 239000000779 smoke Substances 0.000 title claims abstract description 61
- 238000000034 method Methods 0.000 title claims abstract description 26
- 235000019504 cigarettes Nutrition 0.000 claims abstract description 45
- 230000003009 desulfurizing effect Effects 0.000 claims abstract description 36
- 238000002156 mixing Methods 0.000 claims abstract description 30
- 239000007789 gas Substances 0.000 claims abstract description 29
- 239000000203 mixture Substances 0.000 claims abstract description 19
- 239000012716 precipitator Substances 0.000 claims description 15
- 238000001816 cooling Methods 0.000 claims description 11
- 238000006477 desulfuration reaction Methods 0.000 claims description 11
- 230000023556 desulfurization Effects 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 claims description 5
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 2
- 230000005611 electricity Effects 0.000 claims description 2
- 239000005864 Sulphur Substances 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 9
- 239000000126 substance Substances 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 24
- 238000009833 condensation Methods 0.000 description 11
- 230000005494 condensation Effects 0.000 description 11
- 230000008569 process Effects 0.000 description 6
- 239000003344 environmental pollutant Substances 0.000 description 4
- 231100000719 pollutant Toxicity 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- MXWHMTNPTTVWDM-NXOFHUPFSA-N mitoguazone Chemical compound NC(N)=N\N=C(/C)\C=N\N=C(N)N MXWHMTNPTTVWDM-NXOFHUPFSA-N 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- -1 Wherein Chemical compound 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000443 aerosol Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004581 coalescence Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 235000019628 coolness Nutrition 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 208000011580 syndromic disease Diseases 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/002—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by condensation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
- B01D5/0027—Condensation of vapours; Recovering volatile solvents by condensation by direct contact between vapours or gases and the cooling medium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
- B01D5/0033—Other features
- B01D5/0036—Multiple-effect condensation; Fractional condensation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28B—STEAM OR VAPOUR CONDENSERS
- F28B1/00—Condensers in which the steam or vapour is separate from the cooling medium by walls, e.g. surface condenser
- F28B1/06—Condensers in which the steam or vapour is separate from the cooling medium by walls, e.g. surface condenser using air or other gas as the cooling medium
Abstract
The present invention relates to chemical industry, environmental technology field more particularly to a kind of flue gas eliminating white smoke system and method.Specifically, flue gas eliminating white smoke system includes the first flue gas condenser set gradually, desulfurizing tower, the second flue gas condenser, wind turbine, demister, cigarette wind blending flue and chimney；Wherein, the exhanst gas outlet of first flue gas condenser and the entrance of desulfurizing tower connect, the outlet of desulfurizing tower is connect with the smoke inlet of the second flue gas condenser, the exhanst gas outlet of second flue gas condenser and the entrance of demister connect, the smoke inlet that the outlet of demister blends flue with cigarette wind is connect, and the outlet of cigarette wind blending flue is connect with chimney；Wherein, the outlet of wind turbine is connect with the air intake of the second flue gas condenser, the air outlet slit of second flue gas condenser is connect with the air intake of the first flue gas condenser, the air intake that the air outlet slit of first flue gas condenser blends flue with cigarette wind is connect, and the outlet of cigarette wind blending flue is connect with chimney.
Description
Technical field
The present invention relates to chemical industry, environmental technology field more particularly to a kind of flue gas eliminating white smoke system and method.
Background technology
Wet flue gas desulfurization is a kind of sulfur removal technology being most widely used currently on the market, has desulfuration efficiency height, throws
Provide moderate, advantages of simple structure and simple.But the flue gas after desulfurization process directly causes white plume, main cause by smoke stack emission
It is as follows：
1) wet saturated flue gas after smoke stack emission to air in diffusion process fast cooling by condensation drop, formed
White plume；
2) wet desulfurization system exiting flue gas contains a small amount of drop, SO not collected fully by demister3Aerosol, flying dust
Pollutants are waited, the substances such as soluble salt are contained in drop, above-mentioned substance can be used as the nuclei of condensation and promote gas phase water fast in temperature-fall period
Quickly cooling coalescence is precipitated on the nuclei of condensation；
3) after desulfurization in flue and chimney in flow process, due to air duct and chimney are radiated, there is wet saturated flue gas
Partial gas phase water condensation is discharged into air by flue gas entrainment, this is also a major reason for causing white plume.
To sum up, eliminate wet desulphurization white plume, not only solve visual pollution, can also to pollutant depth emission reduction, and
Enhance the diffusivity of flue gas, environment protection significance is great.
The method of the white plume that removes smoke the most traditional is to heat flue gas after desulfurization, i.e. flue gas again using fume afterheat
Heat, typical technology have GGH (Gas GasHeater).However the technology due to early stage application exist block, leakage the problems such as, most
It is gradually abandoned in Chinese market eventually.With the continuous improvement of environmental requirement, developed area part power plant uses water-borne formula
GGH technical solutions, heating desulfurizing tower export wet saturated flue gas, realize the elimination of white plume to a certain extent, thus obtain
More application.The technology of white plume is eliminated in the wet saturated flue gas heating of above two, is using reduction relative humidity
Method eliminates white cigarette, and flue gas water content does not change, only solves visual pollution, can not cooperate with and to take off while eliminating white cigarette
Depollution object.In consideration of it, thermal process is suggested flue gas condensing again, i.e., the temperature of wet saturated flue gas is first reduced, by part in flue gas
Water condensation is precipitated, and realizes the cooperation-removal of pollutant in the process.
Flue gas condensing needs a large amount of low-temperature receiver that partial gas phase water condensation in flue gas is precipitated, and usual low-temperature receiver is cold using recycling
But water.However, some factories can not provide recirculated cooling water, circulating water cooling device, which is separately provided, not only can increase system throwing
Money, and cooling device water consumption is higher than flue gas condensing water collecting amount, cannot achieve the steam vapour amount for reducing and being discharged into environment.
Invention content
The purpose of the present invention is in view of the drawbacks of the prior art, provide a kind of flue gas eliminating white smoke system and method.
Specifically, on the one hand, the present invention provides a kind of flue gas eliminating white smoke systems, including the first flue gas set gradually is cold
Condenser, desulfurizing tower, the second flue gas condenser, wind turbine, demister, cigarette wind blending flue and chimney；
Wherein, the entrance of the exhanst gas outlet of the first flue gas condenser and desulfurizing tower connects, the outlet of desulfurizing tower and the second cigarette
The smoke inlet of gas condenser connects, and the exhanst gas outlet of the second flue gas condenser and the entrance of demister connect, and demister goes out
The smoke inlet that mouth blends flue with cigarette wind is connect, and the outlet of cigarette wind blending flue is connect with chimney；
Wherein, the outlet of wind turbine is connect with the air intake of the second flue gas condenser, and the air of the second flue gas condenser goes out
Mouth is connect with the air intake of the first flue gas condenser, the air of the air outlet slit and cigarette wind blending flue of the first flue gas condenser
Entrance connects, and the outlet of cigarette wind blending flue is connect with chimney.
Above-mentioned flue gas eliminating white smoke system, the flue gas eliminating white smoke system further includes electric precipitator, wherein electric precipitator
Outlet is connect with the smoke inlet of first flue gas condenser.
Above-mentioned flue gas eliminating white smoke system, the flue gas eliminating white smoke system further includes air-introduced machine, wherein the electric precipitator
Outlet and air-introduced machine entrance connect, the outlet of air-introduced machine is connect with the smoke inlet of first flue gas condenser.
Above-mentioned flue gas eliminating white smoke system, the flue gas eliminating white smoke system further includes air-introduced machine, wherein first flue gas
The exhanst gas outlet of condenser and the entrance of air-introduced machine connect, and the outlet of air-introduced machine is connect with the entrance of the desulfurizing tower.
Above-mentioned flue gas eliminating white smoke system, first flue gas condenser and the second flue gas condenser are wall-type heat exchange
Device.
On the other hand, the present invention provides a kind of flue gas eliminating white smoke method, include the following steps：
Flue gas carries out first time heat exchange in the first flue gas condenser with cold air, and the flue gas after cooling enters desulfurization
Tower, flue gas are delivered to the second flue gas condenser again after desulfurizing tower desulfurization, in the second flue gas condenser flue gas and cold air into
Second of heat exchange of row, the flue gas further cooled down are delivered to demister dehumidifying；Flue gas after dehumidifying is in cigarette wind blends flue
It is blended with the hot-air from the second flue gas condenser, finally, blending flue gas is discharged by chimney；
Cold air is delivered to the second flue gas condenser by wind turbine and carries out second of heat exchange, the cold sky after heating with flue gas
Gas enters the first flue gas condenser, and absorbing the heat in flue gas again becomes hot-air, and hot-air is transported to cigarette wind blending cigarette
Road, and blended with the flue gas from demister, it finally blends flue gas and is discharged by chimney.
Above-mentioned flue gas eliminating white smoke method, before the first time heat exchange carries out, flue gas is first through electric precipitator dedusting.
Above-mentioned flue gas eliminating white smoke method, the flue gas are delivered to first flue gas condenser by air-introduced machine.
Above-mentioned flue gas eliminating white smoke method, before the first time heat exchange, the temperature of cold air is 30-70 DEG C, flue gas
Temperature is 100-160 DEG C；After the first time heat exchange, the temperature of hot-air is 70-130 DEG C, and the temperature of flue gas is 90-120
℃。
Above-mentioned flue gas eliminating white smoke method, before second of heat exchange, the temperature of cold air is -10-30 DEG C, the temperature of flue gas
Degree is 40-70 DEG C；After second of heat exchange, the temperature of cold air is 30-70 DEG C, and the temperature of flue gas is 30-60 DEG C.
Technical scheme of the present invention has following advantageous effect：
A kind of flue gas eliminating white smoke system and method abandoning tradition MGGH of the present invention uses water as heat transfer medium, and use is cold
For air as low-temperature receiver, low-temperature receiver and flue gas heat exchange are changed into heat source after absorbing heat；Heat source as blending medium with it is condensed wet
Saturated flue gas mixes, and reaching reduces mixed flue gas water capacity purpose.The present invention is with cost of investment is low, operating cost is low, white
The good advantage of plume eradicating efficacy.
Description of the drawings
Fig. 1 is the process flow chart of some specific implementation modes of the invention,
1 is electric precipitator, and 2 be air-introduced machine, and 3 be the first flue gas condenser, and 4 be desulfurizing tower, and 5 be wind turbine, and 6 be the second flue gas
Condenser, 7 be demister, and 8 blend flue for cigarette wind, and 9 be chimney, and 10 be flue gas condensing water out.
Specific implementation mode
In order to fully understand the purpose of the present invention, feature and effect, by following specific implementation modes, the present invention is made detailed
It describes in detail bright.For the process of the present invention in addition to following the description, remaining is all made of the conventional method or device of this field.Following nouns
Term is unless otherwise stated, all have the normally understood meaning of those skilled in the art.
A kind of flue gas eliminating white smoke system and method abandoning tradition MGGH of the present invention uses water as heat transfer medium, and use is cold
Air is as low-temperature receiver, after low-temperature receiver exports wet saturated flue gas heat exchange absorption heat with desulfurizing tower, enters waste heat as heat transferring medium and returns
The further Mist heat recovering of heat exchanger is received, to be changed into heat source；Heat source is as blending medium and condensed wet saturation cigarette
Gas mixes, and reaching reduces mixed flue gas water capacity purpose.
Specifically, according to an aspect of the present invention, the present invention provides a kind of flue gas eliminating white smoke systems, including set gradually
The first flue gas condenser, desulfurizing tower, the second flue gas condenser, wind turbine, demister, cigarette wind blending flue and chimney；
Wherein, the entrance of the exhanst gas outlet of the first flue gas condenser and desulfurizing tower connects, the outlet of desulfurizing tower and the second cigarette
The smoke inlet of gas condenser connects, and the exhanst gas outlet of the second flue gas condenser and the entrance of demister connect, and demister goes out
The smoke inlet that mouth blends flue with cigarette wind is connect, and the outlet of cigarette wind blending flue is connect with chimney；
Wherein, the outlet of wind turbine is connect with the air intake of the second flue gas condenser, and the air of the second flue gas condenser goes out
Mouth is connect with the air intake of the first flue gas condenser, the air of the air outlet slit and cigarette wind blending flue of the first flue gas condenser
Entrance connects, and the outlet of cigarette wind blending flue is connect with chimney.
Wherein, first flue gas condenser of the invention and the second flue gas condenser are dividing wall type heat exchanger.Wherein, originally
The dividing wall type heat exchanger of invention can be plate heat exchanger, double pipe heat exchanger, shell-and-tube heat exchanger.
Wherein, the drop carried secretly in the flue gas of demister of the invention for exporting in separating flue condenser, can by with
Under type is arranged:Horizontal type, chevron shaped, V-shape, combined (such as diamond shape, X-type).Wherein, the flue gas condensing water of generation is from flue gas
Condensation-water drain is discharged.
Wherein, desulfurizing tower of the invention is the desulfurizing tower of the types such as hollow-spraying-tower type, tray type.Desulfurizing tower is for removing cigarette
SO in gas2。
Wherein, cigarette wind of the invention blends flue, including smoke inlet, air intake and exhanst gas outlet.
Preferably, in some embodiments, the flue gas eliminating white smoke system further includes electric precipitator, wherein electricity
The outlet of deduster is connect with the smoke inlet of first flue gas condenser.It is cold that electric precipitator can enter the first flue gas in flue gas
The pollutants such as the flying dust in flue gas are removed before condenser, the flying dust that on the one hand can avoid in flue gas blocks condenser, on the other hand may be used
By reducing the nuclei of condensation, gas phase water rapid condensation and precipitation on the nuclei of condensation in temperature-fall period are avoided.
Most preferably, in some embodiments, the flue gas eliminating white smoke system further includes air-introduced machine, wherein institute
The entrance of the outlet and air-introduced machine of stating electric precipitator connects, the smoke inlet of the outlet and first flue gas condenser of air-introduced machine
Connection.Specifically, as shown in Figure 1, the flue gas eliminating white smoke system includes：Electric precipitator 1, air-introduced machine 2, the first flue gas condenser
3, desulfurizing tower 4, wind turbine 5, the second flue gas condenser 6, demister 7, cigarette wind blending flue 8, chimney 9 and flue gas condensing water out
10.Wherein electric precipitator 1, air-introduced machine 2, the first flue gas condenser 3, desulfurizing tower 4, the second flue gas condenser 6, demister 7, cigarette wind
Blending flue 8 and chimney 9 are set gradually along the flow direction of flue gas, wherein electric precipitator 1 is connect with air-introduced machine 2, air-introduced machine
2 connect with the first flue gas condenser 3, and the first flue gas condenser 3 is connect with desulfurizing tower 4, desulfurizing tower 4 and the second flue gas condenser 6
Connection, the second flue gas condenser 6 connect with demister 7, and demister 7 blends flue 8 with cigarette wind and connect, cigarette wind blending flue 8 and
Chimney 9 connects.Wherein, wind turbine 5, the second flue gas condenser 6, the first flue gas condenser 3, cigarette wind blending flue 8 and chimney 9 along
Air circulation direction is sequentially connected.
The present invention can effectively control the conveying speed of flue gas by the way that air-introduced machine is arranged, and ensure that the heat of flue gas and cold air is handed over
Effect is changed, to be further ensured that effective progress of flue gas eliminating white smoke system.
Optionally, in some embodiments, the exhanst gas outlet of first flue gas condenser and air-introduced machine enter
Mouth connection, the outlet of air-introduced machine is connect with the entrance of the desulfurizing tower.
According to another aspect of the present invention, the present invention provides a kind of flue gas eliminating white smoke method, include the following steps：
Flue gas carries out first time heat exchange in the first flue gas condenser with cold air, and the flue gas after cooling enters desulfurization
Tower, flue gas are delivered to the second flue gas condenser again after desulfurizing tower desulfurization, in the second flue gas condenser flue gas and cold air into
Second of heat exchange of row, the flue gas further to cool down are delivered to demister dehumidifying；Flue gas after dehumidifying is in cigarette wind blends flue
It is blended with the hot-air for carrying out the second flue gas condenser, finally, blending flue gas is discharged by chimney；
Cold air is delivered to the second flue gas condenser by wind turbine and carries out the second heat exchange, the cold air after heating with flue gas
Absorbing the heat in flue gas again into the first flue gas condenser becomes hot-air, and hot-air is transported to cigarette wind blending flue,
And blended with the flue gas from demister, it finally blends flue gas and is discharged by chimney.
The air that will can be exchanged heat with flue gas in the first flue gas condenser and the second flue gas condenser in the present invention
Be defined as cold air, by from it is being exported in the first flue gas condenser and with flue gas in flue gas blends flue the air that blends
It is defined as hot-air.
The present invention carries out three-level wet down to flue gas using air and finally thoroughly eliminates white plume, wherein first order wet down
For the first flue gas condenser of desulfurizing tower entrance, the flue gas after cooling enters desulfurizing tower, greatly reduces desulfurizing tower
Evaporated water reduces wet saturated flue gas gas phase water content from source.Second level wet down is that the second level flue gas of desulfurizing tower outlet is cold
Condenser further decreases saturated flue gas gas phase water content by exporting wet saturated flue gas cooling and condensation water to desulfurizing tower.
Third level wet down is the blending that cigarette wind blends hot-air and the condensed wet saturated flue gas that cools down in flue, is increasing flue-gas temperature
While reduce the relative humidity of blending flue gas, thoroughly eliminate white plume to final.The present invention is low with cost of investment, transports
The advantage that row expense is low, white plume eradicating efficacy is good.
Preferably, in some embodiments, the flue gas is delivered to described first again after electric precipitator dedusting
The first time heat exchange is carried out in flue gas condenser.
Preferably, in some embodiments, the flue gas is delivered to first flue gas condensing by air-introduced machine
Device.
Preferably, in some embodiments, before the first time heat exchange, the temperature of cold air is 30-70 DEG C,
The temperature of flue gas is 100-160 DEG C；After the first time heat exchange, the temperature of hot-air is 70-130 DEG C, and the temperature of flue gas is
90-120℃.Before second of heat exchange, the temperature of cold air is -10-30 DEG C, and the temperature of flue gas is 40-70 DEG C；Described
After secondary heat exchange, the temperature of cold air is 30-70 DEG C, and the temperature of flue gas is 30-60 DEG C.
In some embodiments, the present invention is by adjusting flue gas and sky described in the blast velocity control of wind turbine and air-introduced machine
Temperature after gas heat exchange.
Embodiment
It is further illustrated the present invention below by the mode of embodiment, but does not therefore limit the present invention to the reality
It applies among a range.
Embodiment 1
Using flue gas eliminating white smoke system as shown in Figure 1, in the first flue gas condenser 3, air exchanges heat with flue gas,
Wherein, flue gas is reduced to 111 DEG C for 140 DEG C from inlet temperature, and air is increased to 92 DEG C of outlet, waste heat recovery for 30 DEG C by entrance wind-warm syndrome
4925kW, humidity of flue gas are reduced to 12.58% by 14.06%, and 4 evaporated water of desulfurizing tower can reduce about 6.4t/h.Flue gas passes through
After the processing of desulfurizing tower 4, flue gas is reduced to 50.75 DEG C by 53 DEG C, and exhaust gas volumn is by 471091Nm3/ h is reduced to 463139Nm3/h。
In the second flue gas condenser 6, using cold air as low-temperature receiver, by 4 exiting flue gas of desulfurizing tower by 50.75 DEG C of coolings
To 49.25 DEG C, temperature reduces by 1.5 DEG C, flue gas condensing water 3.86t/h, flue gas condensing thermal discharge 2904kW, exhaust gas volumn after condensation
458342Nm3/h.Wherein, -5 DEG C of cool air inlet temperature, 30 DEG C of outlet temperature, cooling air volume 230000Nm3/h。
For flue gas reheat, the hot-air of the first flue gas condenser 3 output is directly mixed with flue gas in cigarette wind blends flue 8
Mixed, cigarette air temperature reaches 64.5 DEG C after blending, and humidity of flue gas is reduced to 7.60%, without smoke evacuation phenomenon at smoke evacuation.
The preferred embodiment of the present invention has been described in detail above.It should be appreciated that those skilled in the art without
It needs creative work according to the present invention can conceive and makes many modifications and variations.Therefore, all technologies in the art
Personnel are available by logical analysis, reasoning, or a limited experiment on the basis of existing technology under this invention's idea
Technical solution, all should be in the protection domain being defined in the patent claims.
Claims (10)
1. a kind of flue gas eliminating white smoke system, which is characterized in that including set gradually the first flue gas condenser, desulfurizing tower, second
Flue gas condenser, wind turbine, demister, cigarette wind blending flue and chimney；
Wherein, the entrance of the exhanst gas outlet of the first flue gas condenser and desulfurizing tower connects, and the outlet of desulfurizing tower and the second flue gas are cold
The smoke inlet of condenser connects, and the exhanst gas outlet of the second flue gas condenser and the entrance of demister connect, the outlet of demister with
Cigarette wind blends the smoke inlet connection of flue, and the outlet of cigarette wind blending flue is connect with chimney；
Wherein, the outlet of wind turbine is connect with the air intake of the second flue gas condenser, the air outlet slit of the second flue gas condenser with
The air intake of first flue gas condenser connects, the air intake of the air outlet slit and cigarette wind blending flue of the first flue gas condenser
The outlet of connection, cigarette wind blending flue is connect with chimney.
2. flue gas eliminating white smoke system according to claim 1, which is characterized in that the flue gas eliminating white smoke system further includes electricity
Deduster, wherein the outlet of electric precipitator is connect with the smoke inlet of first flue gas condenser.
3. flue gas eliminating white smoke system according to claim 2, which is characterized in that the flue gas eliminating white smoke system further includes drawing
Wind turbine, wherein the outlet of the electric precipitator and the entrance of air-introduced machine connect, the outlet of air-introduced machine and first flue gas condensing
The smoke inlet of device connects.
4. flue gas eliminating white smoke system according to claim 2, which is characterized in that the flue gas eliminating white smoke system further includes drawing
Wind turbine, wherein the exhanst gas outlet of first flue gas condenser and the entrance of air-introduced machine connect, and the outlet of air-introduced machine takes off with described
The entrance of sulphur tower connects.
5. according to claim 1-4 any one of them flue gas eliminating white smoke systems, which is characterized in that first flue gas condenser
It is dividing wall type heat exchanger with the second flue gas condenser.
6. a kind of flue gas eliminating white smoke method, which is characterized in that include the following steps：
Flue gas carries out first time heat exchange in the first flue gas condenser with cold air, and the flue gas after cooling enters desulfurizing tower, cigarette
Gas is delivered to the second flue gas condenser again after desulfurizing tower desulfurization, and flue gas carries out second with cold air in the second flue gas condenser
Secondary heat exchange, the flue gas further cooled down are delivered to demister dehumidifying；Flue gas after dehumidifying in cigarette wind blends flue with come from
The hot-air of second flue gas condenser blends, and finally, blending flue gas is discharged by chimney；
Cold air is delivered to the second flue gas condenser and flue gas by wind turbine and carries out second of heat exchange, the cold air after heating into
Enter the first flue gas condenser, absorbing the heat in flue gas again becomes hot-air, and hot-air is transported to cigarette wind blending flue, and
It is blended with the flue gas from demister, finally blends flue gas and be discharged by chimney.
7. flue gas eliminating white smoke method according to claim 6, which is characterized in that before the first time heat exchange carries out, cigarette
Gas is first through electric precipitator dedusting.
8. the flue gas eliminating white smoke method described according to claim 6 or 7, which is characterized in that the flue gas is conveyed by air-introduced machine
To first flue gas condenser.
9. according to claim 6-8 any one of them flue gas eliminating white smoke methods, which is characterized in that the first time heat exchange
Before, the temperature of cold air is 30-70 DEG C, and the temperature of flue gas is 100-160 DEG C；After the first time heat exchange, the temperature of hot-air
Degree is 70-130 DEG C, and the temperature of flue gas is 90-120 DEG C.
10. according to any one of the claim 6-9 flue gas eliminating white smoke methods, which is characterized in that before second of heat exchange,
The temperature of cold air is -10-30 DEG C, and the temperature of flue gas is 40-70 DEG C；After second of heat exchange, the temperature of cold air is
30-70 DEG C, the temperature of flue gas is 30-60 DEG C.
Priority Applications (1)
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| CN201810580242.0A CN108434924B (en) | 2018-06-07 | System and method for eliminating white smoke from smoke |
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| CN201810580242.0A CN108434924B (en) | 2018-06-07 | System and method for eliminating white smoke from smoke |
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| CN108434924A true CN108434924A (en) | 2018-08-24 |
| CN108434924B CN108434924B (en) | 2024-04-19 |
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| CN109045953A (en) * | 2018-10-16 | 2018-12-21 | 西安交通大学 | A kind of cooling dehumidification by condensation decontamination reheating of flue gas disappears white system and method |
| CN109107328A (en) * | 2018-11-05 | 2019-01-01 | 南京普兰特换热设备有限公司 | It solves desulfurization fume and takes off white method and desulphurization system |
| CN109198703A (en) * | 2018-11-07 | 2019-01-15 | 广州金鹏环保工程有限公司 | Environmental protection and energy saving zero waste gas emission expanded pellet diet production line and production method |
| CN109224495A (en) * | 2018-10-30 | 2019-01-18 | 青岛诚信环保科技有限公司 | A kind of flue gas takes off white except water treatment system |
| CN110052053A (en) * | 2019-03-22 | 2019-07-26 | 川屹节能科技（上海）有限公司 | Smog dedusting disappears white device |
| CN110075698A (en) * | 2019-04-22 | 2019-08-02 | 山西华仁通电力科技有限公司 | The flue gas advanced purification system and its method that energy-saving plume is eliminated |
| CN110141942A (en) * | 2019-05-24 | 2019-08-20 | 南京晨光集团有限责任公司 | A kind of flue gas depth is cooling, condensation collaboration takes off white system |
| CN110180314A (en) * | 2019-04-15 | 2019-08-30 | 江苏现代路桥有限责任公司 | The white processing unit that disappears of station tail gas is mixed in a kind of drip |
| CN110180335A (en) * | 2019-05-17 | 2019-08-30 | 天津华赛尔传热设备有限公司 | A kind of stove disappears white system containing wet flue gas |
| CN110631040A (en) * | 2019-10-18 | 2019-12-31 | 河北冀研能源科学技术研究院有限公司 | High-efficiency energy-saving smoke condensing and reheating white smoke eliminating system |
| CN111991979A (en) * | 2020-08-06 | 2020-11-27 | 杭州迪卡能源技术有限公司 | System for eliminating white smoke by mixing outside condensation warm air chimney |
| CN112058494A (en) * | 2019-06-11 | 2020-12-11 | 红安方达环保工程有限公司 | Electrostatic precipitator for thermal power plant |
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| CN109045953B (en) * | 2018-10-16 | 2023-10-24 | 西安交通大学 | Flue gas cooling, condensing, dehumidifying, decontaminating, reheating and whitening system and method |
| CN109045953A (en) * | 2018-10-16 | 2018-12-21 | 西安交通大学 | A kind of cooling dehumidification by condensation decontamination reheating of flue gas disappears white system and method |
| CN109224495A (en) * | 2018-10-30 | 2019-01-18 | 青岛诚信环保科技有限公司 | A kind of flue gas takes off white except water treatment system |
| CN109107328A (en) * | 2018-11-05 | 2019-01-01 | 南京普兰特换热设备有限公司 | It solves desulfurization fume and takes off white method and desulphurization system |
| CN109198703A (en) * | 2018-11-07 | 2019-01-15 | 广州金鹏环保工程有限公司 | Environmental protection and energy saving zero waste gas emission expanded pellet diet production line and production method |
| CN110052053A (en) * | 2019-03-22 | 2019-07-26 | 川屹节能科技（上海）有限公司 | Smog dedusting disappears white device |
| CN110180314A (en) * | 2019-04-15 | 2019-08-30 | 江苏现代路桥有限责任公司 | The white processing unit that disappears of station tail gas is mixed in a kind of drip |
| CN110075698A (en) * | 2019-04-22 | 2019-08-02 | 山西华仁通电力科技有限公司 | The flue gas advanced purification system and its method that energy-saving plume is eliminated |
| CN110075698B (en) * | 2019-04-22 | 2023-11-21 | 山西华仁通电力科技有限公司 | Energy-saving smoke deep purification system and method for eliminating smoke plume |
| CN110180335A (en) * | 2019-05-17 | 2019-08-30 | 天津华赛尔传热设备有限公司 | A kind of stove disappears white system containing wet flue gas |
| CN110141942A (en) * | 2019-05-24 | 2019-08-20 | 南京晨光集团有限责任公司 | A kind of flue gas depth is cooling, condensation collaboration takes off white system |
| CN112058494A (en) * | 2019-06-11 | 2020-12-11 | 红安方达环保工程有限公司 | Electrostatic precipitator for thermal power plant |
| CN110631040A (en) * | 2019-10-18 | 2019-12-31 | 河北冀研能源科学技术研究院有限公司 | High-efficiency energy-saving smoke condensing and reheating white smoke eliminating system |
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