CN109999647A - Eliminate chimney white cigarette system in coal-burning power plant - Google Patents
Eliminate chimney white cigarette system in coal-burning power plant Download PDFInfo
- Publication number
- CN109999647A CN109999647A CN201910276371.5A CN201910276371A CN109999647A CN 109999647 A CN109999647 A CN 109999647A CN 201910276371 A CN201910276371 A CN 201910276371A CN 109999647 A CN109999647 A CN 109999647A
- Authority
- CN
- China
- Prior art keywords
- flue gas
- chimney
- coal
- type heat
- condenser
- 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
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
- 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
-
- 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/80—Semi-solid phase processes, i.e. by using slurries
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Chimneys And Flues (AREA)
- Treating Waste Gases (AREA)
Abstract
The present invention relates to a kind of coal-burning power plants to eliminate chimney white cigarette system, including electrostatic precipitator, wet desulphurization device, water pump, cooler, tail flue gas condenser, recycling pond, chimney, electrostatic precipitator one end connects smoke inlet pipe, the other end connects chimney by wet desulphurization device, tail flue gas condenser, the tail flue gas condenser connection recycling pond, tail flue gas condenser connects water pump, cooler forms cooling medium circuit.It is mingled with the flue gas of a large amount of vapor when by tail flue gas condenser, since temp-difference condensing acts on the vapor in condensable most of flue gas, the saline pollution object being dissolved in vapor is removed simultaneously, the system can play the purpose for eliminating throat white cigarette, and flue gas saline pollution object content is reduced simultaneously, flue gas emission cleanliness is substantially improved.Wall type heat exchanger media temperature among condenser is reduced using cooler, so that cooling medium and the flue gas heat exchange temperature difference increase, can be good at carrying out flue gas condensing, improve condensation efficiency.
Description
Technical field
The present invention relates to a kind of coal-burning power plant's tail flue gas processing system, especially a kind of coal-burning power plant that is applied to eliminates cigarette
Chimney white cigarette system.
Background technique
China is consumption of coal big country, and thermoelectricity consumption coal accounts for 47% or so of coal aggregate consumption, and caused by coal burning
Air pollution problems inherent is increasingly serious, and should adopt an effective measure makes coal-burning power plant's emission reach constantly raised environmental protection mark
It is quasi-.The Limestone-gypsum Wet Flue Gas Desulfurization Process that major part coal-burning power plant uses at present will lead to humidity of flue gas increase, easily in throat
Form white cigarette.This has seriously affected the fear phychology of environmental visual and nearby residents.Therefore, it reduces in coal-burning power plant's discharge flue gas
A large amount of white cigarettes that the saline pollution object and chimney breast being mingled with are formed have critically important meaning.
Summary of the invention
Object of the present invention is to solve the above problems, and providing a kind of coal-burning power plant and eliminating chimney white cigarette system, the system
The white cigarette of coal-burning power plant's chimney outlet can not only be reduced, moreover it is possible to flue gas salt content is reduced, to mitigate flue gas emission to ring
The influence in border.
The purpose of the present invention is achieved through the following technical solutions:
A kind of coal-burning power plant eliminates chimney white cigarette system, including electrostatic precipitator, wet desulphurization device, water pump, cooler,
Tail flue gas condenser, recycling pond, chimney, described electrostatic precipitator one end connect smoke inlet pipe, and the other end passes through wet process
Desulfurizer, tail flue gas condenser connect chimney, the tail flue gas condenser connection recycling pond, the tail portion cigarette
Gas condenser connects water pump, cooler forms cooling medium circuit.
Further, the tail flue gas condenser includes gas inlet pipeline, dividing wall type heat exchanger, condensing hot air furnace dress
It sets, exhanst gas outlet pipeline, the dividing wall type heat exchanger and water pump, cooler form circulation loop, the condensate water recovery device
Below dividing wall type heat exchanger, and connect recycling pond.
Further, described dividing wall type heat exchanger one end connects coal-fired plant flue gas discharge outlet by gas inlet pipeline,
The other end connects chimney by exhanst gas outlet pipeline.
Further, exhanst gas outlet pipeline is set above the dividing wall type heat exchanger, and passes through exhanst gas outlet pipeline and cigarette
Chimney connection；State dividing wall type heat exchanger into flue gas mouth connect gas inlet pipeline.
Further, cooling medium carries out condensing heat-exchange by dividing wall type heat exchanger and flue gas, cooling Jie heated up after heat exchange
Matter is cooled down using cooler, then by water pump boosting be again fed to dividing wall type heat exchanger carry out condensation change
Heat forms cooling circuit, and generated condensed water is recycled to recycling pond by condensate water recovery device, finally again by recycle-water
It send to water treatment system and is handled.
The beneficial effects of the present invention are:
1. reducing exhaust gas temperature using condensing heat-exchange in tail flue gas part makes Water vapor condensation Cheng Shui in flue gas simultaneously,
Dissolution simultaneously condenses together with the salt in vapor also companion vapor into condensed water, reduces the salt in the flue gas of discharge
The white plume phenomenon that flue gas is formed in throat can be effectively reduced in class and water capacity, reduces discharge flue gas to the shadow of environment
It rings.
2. wall type heat exchanger media temperature among condenser is reduced using cooler, so that cooling medium and flue gas heat exchange temperature
Difference increases, and can be good at carrying out flue gas condensing, improves condensation efficiency.
3. being mingled with a large amount of salts in the condensed water formed after brackish water steam liquefied in flue gas, can be filled subsequently through processing
Extraction salt is set, wherein salt can be used for other industrial uses, and purified water can be used for power plant's addition water or other purposes.
4. present system is reasonable in design, initial investment is small, easy to operate, easy to maintain, is conducive to large-scale promotion
And implementation.
Detailed description of the invention
Fig. 1 is one structural schematic diagram of embodiment that coal-burning power plant of the invention eliminates chimney white cigarette system；
Fig. 2 is the heat exchanging part structural schematic diagram of the tail flue gas condenser in embodiment one；
Fig. 3 is two structural schematic diagram of embodiment that coal-burning power plant of the invention eliminates chimney white cigarette system；
Fig. 4 is the heat exchanging part structural schematic diagram of the tail flue gas condenser in embodiment two.
In figure: 1- electrostatic precipitator, 2- wet desulphurization device, 3- water pump, 4- cooler, 5- tail flue gas condenser, 6-
Recycle pond, 7- chimney, 21- gas inlet pipeline, 22- dividing wall type heat exchanger, 23- exhanst gas outlet pipeline, 24- condensing hot air furnace
Device.
Specific embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment one:
As shown in Figure 1, a kind of device for eliminating chimney white cigarette applied to coal-burning power plant, including electrostatic precipitator 1, wet process are de-
Sulphur device 2, water pump 3, cooler 4, tail flue gas condenser 5, recycling pond 6 and chimney 7.
Exhanst gas outlet passes sequentially through electrostatic precipitator 1, wet desulphurization device 2, tail flue gas condenser 5 and connects chimney 7.Water
Pump 3, cooler 4 and tail flue gas condenser 5 form cooling medium circuit.It recycles pond 6 and is set to 5 bottom of tail flue gas condenser
Portion is ultimately connected to water treatment system.
As shown in Fig. 2, the tail flue gas condenser 5 for condensing flue gas includes gas inlet pipeline 21, wall-type heat exchange
Device 22, exhanst gas outlet pipeline 23 and condensate water recovery device 24.Wherein dividing wall type heat exchanger 22 is followed with water pump 3, the composition of cooler 4
Loop back path, water pump 3 give circulation power.22 one end of dividing wall type heat exchanger connects coal-fired plant flue gas by gas inlet pipeline 21
Discharge outlet, the other end connect chimney 7 by exhanst gas outlet pipeline 23.Condensate water recovery device 24 is set under dividing wall type heat exchanger 22
It simultaneously collects condensed water and send condensed water to recycling pond 6 in side.
Implement two:
As shown in figure 3, a kind of elimination white cigarette device for being mounted on thermal power plant's chimney, including electrostatic precipitator 1, wet desulphurization
Device 2, water pump 3, cooler 4, tail flue gas condenser 5, recycling pond 6 and chimney 7.Electrostatic precipitator 1, wet desulphurization device
2, tail flue gas condenser 5 and chimney 7 are sequentially communicated.Chimney 7 is placed in 5 top of tail flue gas condenser.Flue gas 7 passes sequentially through quiet
Electric precipitator 1, wet desulphurization device 2, tail flue gas condenser 5 and chimney 7.Cooling medium circuit is by water pump 3,4 and of cooler
Tail flue gas condenser 5 forms.It recycles pond 6 and is set to 5 bottom of tail flue gas condenser, be ultimately connected to water treatment system.
As shown in figure 4, tail flue gas condenser 5 includes gas inlet pipeline 21, dividing wall type heat exchanger 22, smoke outlet tube
Road 23 and condensate water recovery device 24.Wherein dividing wall type heat exchanger 22 connect composition circulation loop, water pump with water pump 3, cooler 4
3 give circulation power.Condensate water recovery device 24 is set to 22 lower section of dividing wall type heat exchanger and collects condensed water and send condensed water
To recycling pond 6.Exhanst gas outlet pipeline 23 is set above dividing wall type heat exchanger 22, and passes through exhanst gas outlet pipeline 23 and chimney 7
Connection；Dividing wall type heat exchanger 22 connects gas inlet pipeline 21 into flue gas mouth.
Power-plant flue gas treatment process are as follows: flue gas carries out flue gas ash removal by electrostatic precipitator, then passes through wet desulphurization device
Flue gas desulfurization is carried out, flue gas desulfurization device is mostly the empty tower structure of countercurrent spray, and flue gas connects with the desulfurization slurry in absorption tower
Touching, the technique increase humidity of flue gas while desulfurization, and exhaust gas temperature reduces, and flue gas is slow during chimney is soaring
Cooling eventually leads to and forms a large amount of white plumes under dew point in chimney outlet flue-gas temperature.The present apparatus is in wet desulphurization
Dividing wall type heat exchanger device is added between device and chimney, so that flue gas carries out condensing heat-exchange in the part, so that flue gas is at this
Temperature, which reaches, under device is condensed into water under dew-point temperature, since solubility of the salts substances in vapor is far below in water
Solubility, the flue gas containing a large amount of vapor has also taken away the dissolution of a large amount of scripts at this time during being condensed into water in this section
Salts substances in flue gas vapor reduce chimney so that the content of vapor and salts substances has decline in flue gas
The content of saline pollution object in the flue gas of discharge, simultaneously because in flue gas vapor reduction, be also not easy to be formed in chimney breast
A large amount of white plumes, are conducive to the misgivings for giving up the people to flue gas emission, improve coal-fired plant flue gas and discharge cleanliness.
Referring to Fig.2,4, in tail flue gas condenser, cooling medium carries out condensation with flue gas by dividing wall type heat exchanger and changes
Heat, the cooling medium to heat up after heat exchange are cooled down using cooler, after by water pump boosting be again fed to partition
Formula heat exchanger carries out condensing heat-exchange, forms cooling circuit.The condensed water of generation is recycled to recycle-water by condensate water recovery device
Recycle-water is finally sent to water treatment system again and is handled by pond.
The present invention is causing humidity of flue gas to increase compared to existing ubiquitous system, tail flue gas after wet desulphurization device
Add, if direct emission atmosphere, vapor condenses to form largely white plumes, to eliminate this phenomenon, adds after wet desulphurization device
The heat pipe for condensing flue gas is filled, after carrying out heat exchange with cryogenic media most of wet flue gas is condensed
Cheng Shui since the solubility of flue gas salinity in water is greater than the solubility in vapor, therefore is also carried a large amount of in condensed water
Flue gas saline pollution object so that achieve the purpose that reduce flue gas in salt content.Simultaneously because water capacity declines in flue gas, discharge
The flue gas of chimney is also not easy to form a large amount of white plumes in throat out, gives up the people to the misgivings of flue gas emission, improves
Coal-fired plant flue gas discharges cleanliness.
The above purport example of implementing is to describe specific implementation process of the invention, main feature and advantage.It should be pointed out that this hair
It is bright not limited by above-described embodiment.Under general principles and spirit, the improvement or retouching done are accordingly to be regarded as the present invention
Protection scope.
Claims (5)
1. a kind of coal-burning power plant eliminates chimney white cigarette system, including electrostatic precipitator, wet desulphurization device, water pump, cooler, tail
Portion's flue gas condenser, recycling pond, chimney, it is characterised in that: described electrostatic precipitator one end connects smoke inlet pipe, the other end
Chimney, the tail flue gas condenser connection recycling pond, institute are connected by wet desulphurization device, tail flue gas condenser
State tail flue gas condenser connection water pump, cooler composition cooling medium circuit.
2. coal-burning power plant according to claim 1 eliminates chimney white cigarette system, it is characterised in that: the tail flue gas is cold
Condenser includes gas inlet pipeline, dividing wall type heat exchanger, condensate water recovery device, exhanst gas outlet pipeline, the wall-type heat exchange
Device and water pump, cooler form circulation loop, and the condensate water recovery device is set to below dividing wall type heat exchanger, and connects recycling
Pond.
3. coal-burning power plant according to claim 2 eliminates chimney white cigarette system, it is characterised in that: the wall-type heat exchange
Device one end connects coal-fired plant flue gas discharge outlet by gas inlet pipeline, and the other end connects chimney by exhanst gas outlet pipeline.
4. coal-burning power plant according to claim 2 eliminates chimney white cigarette system, it is characterised in that: the wall-type heat exchange
Exhanst gas outlet pipeline is set above device, and is connect by exhanst gas outlet pipeline with chimney；The dividing wall type heat exchanger is into flue gas mouth
Connect gas inlet pipeline.
5. coal-burning power plant according to claim 3 or 4 eliminates chimney white cigarette system, it is characterised in that: cooling medium passes through
Dividing wall type heat exchanger and flue gas carry out condensing heat-exchange, and the cooling medium to heat up after heat exchange is cooled down using cooler,
Then dividing wall type heat exchanger is again fed to by water pump boosting and carries out condensing heat-exchange, form cooling circuit, generated condensation
Water is recycled to recycling pond by condensate water recovery device, finally again send recycle-water to water treatment system and handles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910276371.5A CN109999647A (en) | 2019-04-08 | 2019-04-08 | Eliminate chimney white cigarette system in coal-burning power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910276371.5A CN109999647A (en) | 2019-04-08 | 2019-04-08 | Eliminate chimney white cigarette system in coal-burning power plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109999647A true CN109999647A (en) | 2019-07-12 |
Family
ID=67170278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910276371.5A Pending CN109999647A (en) | 2019-04-08 | 2019-04-08 | Eliminate chimney white cigarette system in coal-burning power plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109999647A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110801705A (en) * | 2019-11-29 | 2020-02-18 | 西安交通大学 | White smoke eliminating device based on smoke condensation and chemical adsorption |
| CN111443155A (en) * | 2020-03-18 | 2020-07-24 | 上海创蓝检测技术有限公司 | Off-line testing method for discharge amount of soluble salt in wet desulphurization flue gas of power plant |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101881387B1 (en) * | 2017-09-22 | 2018-07-24 | 이호승 | Apparatus for eliminating white-smoke |
| CN109529583A (en) * | 2018-12-20 | 2019-03-29 | 大唐环境产业集团股份有限公司 | UTILIZATION OF VESIDUAL HEAT IN is discarded for coal-burning power plant and eliminates the device and method of chimney white cigarette |
-
2019
- 2019-04-08 CN CN201910276371.5A patent/CN109999647A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101881387B1 (en) * | 2017-09-22 | 2018-07-24 | 이호승 | Apparatus for eliminating white-smoke |
| CN109529583A (en) * | 2018-12-20 | 2019-03-29 | 大唐环境产业集团股份有限公司 | UTILIZATION OF VESIDUAL HEAT IN is discarded for coal-burning power plant and eliminates the device and method of chimney white cigarette |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110801705A (en) * | 2019-11-29 | 2020-02-18 | 西安交通大学 | White smoke eliminating device based on smoke condensation and chemical adsorption |
| CN110801705B (en) * | 2019-11-29 | 2021-03-12 | 西安交通大学 | White smoke eliminating device based on smoke condensation and chemical adsorption |
| CN111443155A (en) * | 2020-03-18 | 2020-07-24 | 上海创蓝检测技术有限公司 | Off-line testing method for discharge amount of soluble salt in wet desulphurization flue gas of power plant |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104100994B (en) | A kind of based on flue gas waste heat recovery and the boiler energy-saving emission-reduction system of thermal technology again | |
| CN104235864B (en) | The moisture recovery system and method for a kind of flue gas | |
| CN103968401B (en) | Dedusting-desulfurization-UTILIZATION OF VESIDUAL HEAT IN integral system of low PM2.5 discharge | |
| CN110425902A (en) | A kind of wet-method desulfurized fume waste heat recycling system and method | |
| CN106474860A (en) | Wet desulfurization flue gas processing system and processing method | |
| CN107860153A (en) | A kind of energy-saving and water-saving type coal-burning boiler wet flue gas depth total system and method | |
| CN109237505A (en) | The device and its working method that water disappears white are received in a kind of classification waste heat recycling condensation of flue gas | |
| CN207815367U (en) | A kind of zero energy consumption of thermal power plant disappears white-smoke-removing system | |
| CN203336624U (en) | Flue gas moisture recovery system | |
| CN105937773A (en) | Power station boiler condensing flue gas dehumidification and purification energy-saving system | |
| CN207379110U (en) | A kind of energy-saving and water-saving type coal-burning boiler wet flue gas depth total system | |
| CN102407070B (en) | Composite equipment for flue gas waste heat recovery and dust cleaning | |
| CN104776639A (en) | High-efficiency smoke heat recovery device | |
| CN108679638A (en) | A kind of condensation-reheating integration plume disappears white system | |
| CN109529583A (en) | UTILIZATION OF VESIDUAL HEAT IN is discarded for coal-burning power plant and eliminates the device and method of chimney white cigarette | |
| CN109999647A (en) | Eliminate chimney white cigarette system in coal-burning power plant | |
| CN208229598U (en) | A kind of wet desulphurization takes off white and residual neat recovering system with flue gas | |
| CN209371290U (en) | A kind of flue gas deep treatment and waste-heat recovery device based on heat pipe heat exchanging technology | |
| CN203963990U (en) | A kind of based on flue gas waste heat recovery and the boiler energy-saving emission-reduction system of thermal technology again | |
| CN110124347A (en) | A kind of energy and water saving type flue gas purification device and method | |
| CN209714720U (en) | It is a kind of to discard UTILIZATION OF VESIDUAL HEAT IN for coal-burning power plant and eliminate the device of chimney white cigarette | |
| CN208720252U (en) | A kind of condensation-reheating integration plume disappears white system | |
| CN112426853A (en) | Efficient composite flue gas moisture recovery system and method | |
| CN202913003U (en) | Converter smoke treatment system | |
| CN105757645A (en) | Efficient low-grade residual heat resource utilization system for coal-fired power plant |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190712 |
|
| RJ01 | Rejection of invention patent application after publication |