CN107036120A - A kind of thermal power plant's afterbody chimney anticorrosion and pollutant deep removal system - Google Patents
A kind of thermal power plant's afterbody chimney anticorrosion and pollutant deep removal system Download PDFInfo
- Publication number
- CN107036120A CN107036120A CN201710410894.5A CN201710410894A CN107036120A CN 107036120 A CN107036120 A CN 107036120A CN 201710410894 A CN201710410894 A CN 201710410894A CN 107036120 A CN107036120 A CN 107036120A
- Authority
- CN
- China
- Prior art keywords
- flue gas
- chimney
- gas
- power plant
- boiler
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000003344 environmental pollutant Substances 0.000 title claims abstract description 28
- 231100000719 pollutant Toxicity 0.000 title claims abstract description 28
- 239000003546 flue gas Substances 0.000 claims abstract description 100
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 98
- 239000007789 gas Substances 0.000 claims abstract description 32
- 230000003009 desulfurizing effect Effects 0.000 claims abstract description 25
- 238000005260 corrosion Methods 0.000 claims abstract description 23
- 239000002253 acid Substances 0.000 claims abstract description 18
- 230000007797 corrosion Effects 0.000 claims abstract description 16
- 230000009467 reduction Effects 0.000 claims abstract description 16
- 238000006477 desulfuration reaction Methods 0.000 claims abstract description 8
- 230000023556 desulfurization Effects 0.000 claims abstract description 8
- 230000002378 acidificating effect Effects 0.000 claims abstract description 4
- 230000009466 transformation Effects 0.000 claims abstract description 3
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 claims description 11
- 238000009833 condensation Methods 0.000 claims description 11
- 230000005494 condensation Effects 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 11
- 239000000779 smoke Substances 0.000 claims description 5
- 239000003245 coal Substances 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- 238000001556 precipitation Methods 0.000 claims description 4
- 239000002028 Biomass Substances 0.000 claims description 3
- 239000000356 contaminant Substances 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 229920002313 fluoropolymer Polymers 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims description 2
- 230000008030 elimination Effects 0.000 claims description 2
- 238000003379 elimination reaction Methods 0.000 claims description 2
- 239000007769 metal material Substances 0.000 claims description 2
- 230000005662 electromechanics Effects 0.000 claims 1
- 235000019504 cigarettes Nutrition 0.000 abstract description 7
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 2
- 229910000040 hydrogen fluoride Inorganic materials 0.000 description 2
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical compound S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 1
- 238000007605 air drying Methods 0.000 description 1
- 230000002421 anti-septic effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/06—Arrangements of devices for treating smoke or fumes of coolers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/006—Layout of treatment plant
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
- F23J15/022—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
- F23J15/022—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow
- F23J15/025—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow using filters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
- F23J15/04—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material using washing fluids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J2215/00—Preventing emissions
- F23J2215/20—Sulfur; Compounds thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J2215/00—Preventing emissions
- F23J2215/30—Halogen; Compounds thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J2217/00—Intercepting solids
- F23J2217/10—Intercepting solids by filters
- F23J2217/102—Intercepting solids by filters electrostatic
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J2217/00—Intercepting solids
- F23J2217/50—Intercepting solids by cleaning fluids (washers or scrubbers)
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/30—Technologies for a more efficient combustion or heat usage
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Treating Waste Gases (AREA)
- Chimneys And Flues (AREA)
Abstract
The system that the present invention proposes a kind of new thermal power plant's afterbody chimney anticorrosion and pollutant deep removal, more particularly to a kind of thinking for reducing acid dew point and corroding in advance.Proposition system of the present invention includes heat exchanger, flue gas blender, flue gas heater, chimney, blower fan at different levels after boiler body, boiler tail SCR device, heat-exchanger rig at different levels, deduster, desulfurizing tower, desulfurizing tower.Before flue gas after desulfurization enters chimney, make the reduction of its dew point, and vapor and acidic corrosive gas are further condensed into discharge, the corrosion of chimney is transferred in more tractable heat exchanger.It is easily handled by that will corrode to be transferred in the heat exchanger with protection, reduces the cost of chimney maintenance and transformation；And desulfurization blower fan is transferred to desulfurizing tower rear portion, due to the reduction of cigarette temperature, so as to reduce power plant's operation power consumption, improve the economic benefit of power plant.
Description
Technical field
The present invention relates to the system of a kind of new thermal power plant's afterbody chimney anticorrosion and pollutant deep removal, more particularly to
A kind of thinking for reducing acid dew point and corroding in advance, belongs to the corrosion-resistant field and ultra-clean discharge neck of Rear of Utility Boiler equipment
Domain.
Background technology
Flue gas after burning can be delivered in the air of certain altitude and discharge by chimney, increase the range of scatter of flue gas, subtract
Few pollution of the flue gas to power plant surrounding area, is indispensable part in thermal power plant.
Contain a certain amount of oxysulfide in coal fired power plant flue gas, pass through wet desulphurization（FGD）Afterwards, although SO2Content
It is greatly decreased, but SO3Removal efficiency but can only achieve 20% ~ 30%.After desulfurizing tower, the humidity increase of flue gas, temperature
Degree declines, and makes the SO in flue gas3Condense to form acid condensate liquid in flue and chimney surface with vapor.In addition, after desulfurization
Also containing the strong corrosive material such as hydrogen fluoride and chloride in flue gas, these factors cause jointly corrosion strength in chimney it is high,
Permeability is strong and low temperature and high relative humidity diluted acid type corrosion phenomenon of more difficult strick precaution.
It is general to use inorganic material anti-corrosion and organic material anti-corrosion two ways for current chimney anticorrosion measure.But
It is that China's generating set smoke evacuation operating mode is more complicated, on the one hand smoke evacuation uses the mixing heat smoke method of operation, and by-pass damper is opened
Number of times is more；On the other hand because many factors cause partly or wholly construction quality problem, and lack for anti-corrosion material
The effective test evaluation method or guide specifications of system.These all cause the corrosion phenomenon of chimney to remain unchanged to be widely present and non-
Chang Yanchong, makes economy of power plant benefit not high and chimney anti-corrosion, transformation and maintenance difficulty, expense are too high.Therefore a kind of fire is designed
The afterbody system of chimney of electric plant anti-corrosion and pollutant deep removal, is just particularly important.
The content of the invention
Thermal power plant's afterbody chimney anticorrosion and pollutant deep removal system proposed by the present invention, including boiler body, boiler
Heat exchanger after afterbody SCR device, heat-exchanger rig at different levels, deduster, desulfurizing tower, desulfurizing tower, flue gas blender, flue gas heater,
Chimney, blower fan at different levels.Before flue gas after desulfurization enters chimney, make the reduction of its dew point, and by vapor and acidic corrosive gas
Body further condenses discharge, and the corrosion of chimney is transferred in more tractable heat exchanger.
Wherein described boiler tail flue gas heat-exchanger rig includes：Heated surface at the end of boiler（2）, air preheaters at different levels
（4）, economizer（5）, flue gas condenser after desulfurizing tower（9）, flue gas heater before chimney（12）.
The blower fan at different levels includes the air-introduced machine being connected with house outlet（7）And the booster fan set before chimney
（13）.
In thermal power plant's afterbody chimney anticorrosion and pollutant deep removal system of the present invention, reduction flue gas acid dew point
Method includes two kinds：First, reduce below flue-gas temperature to acid dew point, sour gas is condensed discharge in advance；Second, reduce cigarette
Vapor and acid gas partial pressure in gas.
The method of two kinds described in it reduction flue gas acid dew points, can be used simultaneously in two ways, can also only use the
A kind of method.
The method of described reduction flue-gas temperature is that flue gas condenser is set after desulfurizing tower.
The heat-exchange working medium of the flue gas condenser set after the desulfurizing tower can be gas, or liquid；Its form
Can for dividing wall type, heat accumulating type, fluidly connect indirect type and gas is gas mixed etc..
The material of the flue gas condenser set after the desulfurizing tower is corrosion-resistant metal materials, or easily changes cheap material,
Or the new material such as fluoroplastics and ceramics, or take the material of sprayed protection.
The method of the reduction vapor and acid gas partial pressure is that flue gas blender is set after flue gas condenser, is made
Cool and condense the flue gas of removing acid contaminant and the gas mixing dried, increase flue gas volume, reduce vapor and acidity
Partial pressure.
The flue gas blender that the flue gas condenser rear is set, dry flue gas therein can be flue gas cooling after desulfurizing tower
The gas working medium of device, or other dry gas.
The supercharger set before the chimney, can substitute original booster fan in flue gas system.Due to sour gas
Condensation discharge in advance, it is therefore prevented that the corrosion of blower fan；Gas temperature is reduced, and reduces blower fan power consumption, and economy of power plant is improved.
Thermal power plant's afterbody chimney anticorrosion and pollutant deep removal system of the present invention, when boiler tail sets wet type
The ultra-clean exhaust apparatus such as electric precipitation, low temperature electric precipitation, or pollutant removing it is up to standard when, the setting of chimney can be cancelled, make cigarette
Gas is directly discharged after deep condensation.
Thermal power plant's afterbody chimney anticorrosion and pollutant deep removal system of the present invention, it is anti-available for old chimney of electric plant
The depth of rotten and pollutant removing is transformed, it can also be used to the design-build of new power plant.
Thermal power plant's afterbody chimney anticorrosion and pollutant deep removal system of the present invention, the system is fired available for power station
Coal burning boiler, it can also be used to Industrial Boiler, civil boiler, and biomass boiler.
What it is it is an object of the invention to provide a kind of new thermal power plant's afterbody chimney anticorrosion and pollutant deep removal is
System, it can effectively reduce the humidity and oxysulfide of flue gas, hydrogen fluoride, the concentration of chloride in chimney, flue gas is reached ring
Protect the standard of discharge and the corrosion of chimney is greatly reduced.In addition, being transferred to the heat exchanger being easily handled with protection by that will corrode
In, reduce the cost that chimney is safeguarded and transformed；And desulfurization blower fan is transferred to desulfurizing tower rear portion, due to the reduction of cigarette temperature, from
And power plant's operation power consumption is reduced, improve the economic benefit of power plant.
Brief description of the drawings
The following drawings is only intended to, in making schematic illustration and explanation to the present invention, not delimit the scope of the invention.Its
In：
Fig. 1 is new thermal power plant's afterbody chimney anticorrosion and pollutant deep removal system schematic of the invention；
Fig. 2 illustrates for a kind of embodiment of new thermal power plant's afterbody chimney anticorrosion and pollutant deep removal system of the invention
Figure.
Wherein, in Fig. 1 and Fig. 2：
1. boiler furnace；2. back-end surfaces；3. SCR；4. air preheater；5. economizer；6. deduster；7. air inducing
Machine；8. desulfurizing tower；9. flue gas condenser；10. flue gas blender；11. chimney；12. temperature rise heat exchanger；13. it is pressurized wind
Machine；14. flue gas cool-down heat exchanger.
Embodiment
Fig. 1 is the new thermal power plant's afterbody chimney anticorrosion and pollutant deep removal system schematic of the present invention, and Fig. 2 is this
Invent new thermal power plant's afterbody chimney anticorrosion and a kind of embodiment schematic diagram of pollutant deep removal system.
A kind of application of thermal power plant's afterbody chimney anticorrosion and pollutant deep removal system proposed by the present invention is such as Fig. 2 institutes
Show, including heat exchanger, cigarette after boiler body, boiler tail SCR device, heat-exchanger rig at different levels, deduster, desulfurizing tower, desulfurizing tower
Gas blender, flue gas heater, chimney, blower fan at different levels.Before flue gas after desulfurization enters chimney, make the reduction of its dew point, and will
Vapor and acidic corrosive gas further condense discharge, and the corrosion of chimney is transferred in more tractable heat exchanger.
In system of the present invention, boiler tail flue gas heat-exchanger rig is as shown in Figure 2：Heated surface at the end of boiler（2）, it is at different levels
Air preheater（4）, economizer（5）, the anterior flue gas cool-down heat exchanger of deduster（14）, flue gas condenser after desulfurizing tower（9）、
Flue gas heater before chimney（12）.
The blower fan at different levels includes the air-introduced machine being connected with house outlet（7）, connect the air-introduced machine booster fan, with
And the booster fan set before chimney（13）.
For thermal power plant's afterbody chimney anticorrosion of the present invention and pollutant deep removal system, its core concept is：
Tail flue gas after desulfurization enters before chimney, reduces its dew-point temperature, vapor and sour gas is condensed discharge in advance, keep away
Exempt from condensation of the flue gas in chimney, so as to prevent the corrosion phenomenon of chimney.Dew-point temperature is reduced in terms of two to carry out：First,
Flue-gas temperature is reduced after desulfurizing tower, a part of vapor therein and sour gas is condensed discharge in advance.Thus reduce
The content of vapor and sour gas in flue gas, so as to reduce vapor and acid gas partial pressure.Secondly, enter in flue gas
Before chimney, reduce steam partial pressure and acid gas partial pressure again by making it be mixed with dry air, further reduction dew point temperature
Degree.Furthermore, it is possible to increase GGH heat exchangers before chimney, the temperature of flue gas after lifting mixing, it is to avoid corrosion reaction in chimney
Occur.
As shown in Fig. 2 setting flue gas condenser after desulfurizing tower（9）, this flue gas condenser is gas-gas heat exchanger, bosher
Matter is the air of air drying.This flue gas condenser uses fluoroplastics material, and periodic flushing surface.Pass through this flue gas in flue gas
During condenser, flue-gas temperature is reduced, the H not being removed in flue gas2SO4, HCl, HF and NOxDeng sour gas in heat exchanger surface
Condensation discharge.And the dry air of condensation working medium is served as, it is passed directly into the flue gas blender after condenser.
Flue gas blender after condenser（10）For further reducing the vapor and sour gas that are not removed in flue gas
Body partial pressure, flue gas dew point temperature is reduced with this.The dry air of condensation working medium is served as within the condenser, and cigarette is passed through after heating
In gas blender, it is mutually mixed with being passed through flue gas therein.Flue gas volume increases and temperature is raised, make vapor in flue gas and
Volume fraction shared by sour gas reduces, flue gas dew point reduction.
Mixed flue gas, the temperature rise heat exchanger after being arranged in blender（10）Heating, temperature is further raised, cigarette
The hot pressing of gas and rising height are improved, and are able to smoothly discharge from chimney.And the hot side working medium in this temperature rise heat exchanger, come from
The flue gas cool-down heat exchanger arranged before deduster.In heat exchanger of this working medium before deduster, flue-gas temperature is reduced to 90 DEG C
Left and right, while working medium endothermic temperature is raised, and will release in cooling heat exchanger of this partial heat after blender, to be lifted
Flue-gas temperature in heat exchanger.
In this application of system of the present invention, as shown in Fig. 2 the booster fan of boiler tail is moved into chimney
Before.Flue gas drying now, flue gas dew point reduction, corrosion will not be caused to booster fan, blower fan anti-corrosion cost is reduced；Simultaneously
Flue gas flow is relatively small, reduces blower fan power consumption.Flue gas is made after blower fan, overcoming the devices such as desulfurizing tower, condenser
Into resistance, enable flue gas smooth discharge.
Above-mentioned case study on implementation is only a kind of embodiment of system of the present invention, when boiler tail sets wet type electricity to remove
The ultra-clean exhaust apparatus such as dirt, low temperature electric precipitation, or pollutant removing it is up to standard when, the setting of chimney can be cancelled, flue gas is passed through
Cross after deep condensation and directly discharge.When condenser condensation effect preferably, while when acid contaminant is less in flue gas, Ke Yiqu
The setting of smoke elimination gas blender.When most vapor in anterior flue gas and sour gas condensation discharge within the condenser
When, the setting of flue gas heater can be cancelled.Old power plant, can be directly between desulfurizing tower and chimney when chimney anticorrosion is transformed
Condenser and flue gas blender are set, improvement cost can be saved while preferable antiseptic effect is reached.It is of the present invention
Thermal power plant's afterbody chimney anticorrosion and pollutant deep removal system, in addition to coal burning boiler of power station, are equally applicable to Industrial Boiler, the people
With boiler, and biomass boiler.
Claims (10)
1. a kind of thermal power plant's afterbody chimney anticorrosion and pollutant deep removal system, including boiler body, boiler tail SCR dress
Put, it is heat exchanger after heat-exchanger rig at different levels, deduster, desulfurizing tower, desulfurizing tower, flue gas blender, flue gas heater, chimney, at different levels
Blower fan, it is characterised in that：Before flue gas after desulfurization enters chimney, make the reduction of its dew point, and by vapor and acidic corrosive
Gas further condenses discharge, and the corrosion of chimney is transferred in more tractable heat exchanger.
2. a kind of thermal power plant's afterbody chimney anticorrosion according to claim 1 and pollutant deep removal system, its feature exist
In boiler tail flue gas heat-exchanger rig includes：Flue gas condensing after back-end surfaces, air preheater at different levels, economizer, desulfurizing tower
The booster fan set before device, chimney before flue gas heater, the air-introduced machine being connected with house outlet, chimney.
3. a kind of thermal power plant's afterbody chimney anticorrosion according to claim 1 and pollutant deep removal system, its feature exist
In the method for reduction flue gas dew point includes：First, reduce below flue-gas temperature to acid dew point, make the sour gas row of condensation in advance
Go out；Second, reduce vapor and acid gas partial pressure in flue gas；Two methods can be used simultaneously, can also only use the first
Method.
4. the method for reduction flue-gas temperature according to claim 3, it is characterised in that flue gas condensing is set after desulfurizing tower
Device.
5. flue gas condenser according to claim 4, it is characterised in that the heat-exchange working medium of the flue gas condenser can be
Gas, or liquid；Its form can for dividing wall type, heat accumulating type, fluidly connect indirect type and gas is gas mixed etc.；
Cooler material is corrosion-resistant metal materials, or easily changes the new materials such as cheap material, or fluoroplastics and ceramics, or is taken
The material of sprayed protection.
6. the method for reduction vapor according to claim 3 and acid gas partial pressure, it is characterised in that in flue gas condensing
Flue gas blender is set after device, makes cooling and condenses the flue gas of removing acid contaminant and the gas mixing dried, increase flue gas
Volume, reduces vapor and acid gas partial pressure.
7. flue gas blender according to claim 6, it is characterised in that dry flue gas therein is cold for flue gas after desulfurizing tower
The gas working medium of cold end in condenser, or other dry gas.
8. the booster fan set before chimney according to claim 2, it is characterised in that flue gas system Central Plains can be substituted
Some booster fans, because sour gas condenses discharge in advance, it is therefore prevented that the corrosion of blower fan；Gas temperature is reduced, and reduces wind
Electromechanics consumption, economy of power plant is improved.
9. thermal power plant's afterbody chimney anticorrosion and pollutant deep removal system according to claim 1-8, it is characterised in that
When the ultra-clean exhaust apparatus such as boiler tail setting wet-esp, low temperature electric precipitation, or pollutant removing are up to standard, Ke Yiqu
The setting of smoke elimination chimney, makes flue gas directly be discharged after deep condensation.
10. thermal power plant's afterbody chimney anticorrosion and pollutant deep removal system according to claim 1-9, its feature exist
In available for old chimney of electric plant anti-corrosion and the transformation of the depth of pollutant removing, it can also be used to the design-build of new power plant；It can be used for
Coal burning boiler of power station, it can also be used to Industrial Boiler, civil boiler, and biomass boiler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710410894.5A CN107036120A (en) | 2017-06-04 | 2017-06-04 | A kind of thermal power plant's afterbody chimney anticorrosion and pollutant deep removal system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710410894.5A CN107036120A (en) | 2017-06-04 | 2017-06-04 | A kind of thermal power plant's afterbody chimney anticorrosion and pollutant deep removal system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107036120A true CN107036120A (en) | 2017-08-11 |
Family
ID=59540769
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710410894.5A Pending CN107036120A (en) | 2017-06-04 | 2017-06-04 | A kind of thermal power plant's afterbody chimney anticorrosion and pollutant deep removal system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107036120A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107917417A (en) * | 2017-12-12 | 2018-04-17 | 上海交通大学 | A kind of boiler smoke recirculation blower anti-corrosion system |
| CN108253443A (en) * | 2018-03-06 | 2018-07-06 | 中国科学院广州能源研究所 | A kind of coal-fired plant flue gas water recycling and complementary energy synthesis utilize system |
| CN109059028A (en) * | 2018-08-31 | 2018-12-21 | 国电南京电力试验研究有限公司 | A kind of desulfurization fume disappears white system |
| 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 | A high-efficiency and energy-saving flue gas condensation reheating system for eliminating white smoke |
| CN110668610A (en) * | 2019-11-07 | 2020-01-10 | 盛发环保科技（厦门）有限公司 | Desulfurization wastewater emission reduction and water quality treatment recycling process device |
| CN113209790A (en) * | 2021-05-28 | 2021-08-06 | 沈阳东大山汇环境科技有限公司 | Treatment system and method for preventing corrosion and scaling of equipment acid dew in flue gas treatment process |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04504976A (en) * | 1989-02-15 | 1992-09-03 | コタ，ジョージ，ミクロス | METHODS AND APPARATUS FOR THE REMOVAL OF AIR POLLUTION |
| CN102121703A (en) * | 2010-12-28 | 2011-07-13 | 哈尔滨工业大学 | Mixed type flue gas reheating system suitable for wet type flue gas purification process of high-cold region |
| CN105805768A (en) * | 2016-05-19 | 2016-07-27 | 洛阳瑞昌石油化工设备有限公司 | Energy saving and environmental protecting equipment and process for reducing white smoke in flue gas |
| CN105937773A (en) * | 2016-06-02 | 2016-09-14 | 山东泓奥电力科技有限公司 | Power station boiler condensing flue gas dehumidification and purification energy-saving system |
| CN106512637A (en) * | 2016-12-06 | 2017-03-22 | 四川省简阳空冷器制造有限公司 | Device and method for removing white smoke |
-
2017
- 2017-06-04 CN CN201710410894.5A patent/CN107036120A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04504976A (en) * | 1989-02-15 | 1992-09-03 | コタ，ジョージ，ミクロス | METHODS AND APPARATUS FOR THE REMOVAL OF AIR POLLUTION |
| CN102121703A (en) * | 2010-12-28 | 2011-07-13 | 哈尔滨工业大学 | Mixed type flue gas reheating system suitable for wet type flue gas purification process of high-cold region |
| CN105805768A (en) * | 2016-05-19 | 2016-07-27 | 洛阳瑞昌石油化工设备有限公司 | Energy saving and environmental protecting equipment and process for reducing white smoke in flue gas |
| CN105937773A (en) * | 2016-06-02 | 2016-09-14 | 山东泓奥电力科技有限公司 | Power station boiler condensing flue gas dehumidification and purification energy-saving system |
| CN106512637A (en) * | 2016-12-06 | 2017-03-22 | 四川省简阳空冷器制造有限公司 | Device and method for removing white smoke |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107917417A (en) * | 2017-12-12 | 2018-04-17 | 上海交通大学 | A kind of boiler smoke recirculation blower anti-corrosion system |
| CN108253443A (en) * | 2018-03-06 | 2018-07-06 | 中国科学院广州能源研究所 | A kind of coal-fired plant flue gas water recycling and complementary energy synthesis utilize system |
| CN109059028A (en) * | 2018-08-31 | 2018-12-21 | 国电南京电力试验研究有限公司 | A kind of desulfurization fume disappears white system |
| 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 | A high-efficiency and energy-saving flue gas condensation reheating system for eliminating white smoke |
| CN110668610A (en) * | 2019-11-07 | 2020-01-10 | 盛发环保科技（厦门）有限公司 | Desulfurization wastewater emission reduction and water quality treatment recycling process device |
| CN113209790A (en) * | 2021-05-28 | 2021-08-06 | 沈阳东大山汇环境科技有限公司 | Treatment system and method for preventing corrosion and scaling of equipment acid dew in flue gas treatment process |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107036120A (en) | A kind of thermal power plant's afterbody chimney anticorrosion and pollutant deep removal system | |
| CN105937773A (en) | Power station boiler condensing flue gas dehumidification and purification energy-saving system | |
| CN103968401B (en) | Dedusting-desulfurization-UTILIZATION OF VESIDUAL HEAT IN integral system of low PM2.5 discharge | |
| CN207350355U (en) | A kind of flue gas in power station boiler condenses reheating energy conserving system | |
| CN204786491U (en) | Boiler smoke waste -heat application system | |
| CN205640961U (en) | Reduce energy -concerving and environment -protective equipment of white cigarette of flue gas | |
| CN211274153U (en) | A boiler flue gas dewhitening device | |
| CN102600712A (en) | Method and system for eliminating white smoke in solid waste incineration | |
| CN104154549A (en) | Boiler wet desulfurization and demisting, smoke reheating and chimney corrosion prevention integrated device and method | |
| CN106940025A (en) | Fire coal boiler fume is purified and waste heat recovery processing system and method | |
| CN204593428U (en) | Boiler low-temperature fume waste-heat recovery device | |
| KR100694492B1 (en) | White smoke prevention device using self waste heat | |
| CN109289228A (en) | A kind of device and method for heat-engine plant desulfurized Ta Tanei spraying cooling eliminating white smoke | |
| CN203963990U (en) | A kind of based on flue gas waste heat recovery and the boiler energy-saving emission-reduction system of thermal technology again | |
| CN108930971A (en) | A kind of tail gas white-smoke-removing device and method of wet desulphurization, denitration | |
| CN206755210U (en) | Fire coal boiler fume purifies and waste heat recovery processing system | |
| CN204043443U (en) | Gas cooler | |
| CN108224459A (en) | A kind of boiler smoke heat energy recovering method | |
| CN204543878U (en) | A kind of system eliminating boiler desulfurization gypsum rain phenomenon | |
| CN107883780A (en) | A kind of wet process of FGD white cigarette controlling device | |
| CN204084434U (en) | A kind of single low-temperature receiver composite boiler waste heat recovery and Integrated Processing Unit | |
| CN106853324A (en) | A kind of flue gas deep dehydration treatment and WHRS | |
| CN114777147B (en) | Flue gas de-whitening method and device | |
| CN205700018U (en) | Condensation flue gas desulfurization device | |
| CN207299002U (en) | A kind of wet desulphurization, the tail gas white-smoke-removing device of denitration |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170811 |