CN207907270U - A kind of white misty rain joint flue gas waste heat recovery system of elimination - Google Patents
A kind of white misty rain joint flue gas waste heat recovery system of elimination Download PDFInfo
- Publication number
- CN207907270U CN207907270U CN201820293159.0U CN201820293159U CN207907270U CN 207907270 U CN207907270 U CN 207907270U CN 201820293159 U CN201820293159 U CN 201820293159U CN 207907270 U CN207907270 U CN 207907270U
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- China
- Prior art keywords
- flue gas
- water
- waste heat
- misty rain
- heat recovery
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- 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
Abstract
The utility model provides a kind of white misty rain joint flue gas waste heat recovery system of elimination, including by the sequentially connected gas cooler of pipeline, low temperature electrostatic deduster, air-introduced machine and smoke re-heater and internal circulation system, internal circulation system includes recycling water pump and joint heat exchanger.The utility model improves efficiency of dust collection, meets different load operating condition, while reducing energy loss.
Description
Technical field
The utility model belongs to fume afterheat and utilizes and eliminate white misty rain technical field, and in particular to a kind of coal-burning power plant
It eliminates white misty rain and combines flue gas waste heat recovery system.
Background technology
Currently, Thermal Power Generation Industry coal consumption accounts for about the 50% of national energy consumption total amount, it is the important sources of atmosphere pollution
One of.As country prevents from putting more effort to coal-burning power plant's atmosphere pollution, domestic and international power plant answers in electric precipitator, desulfurizing tower
It uses and uses many new technologies, efficiency of dust collection, desulphurization energy-saving, water-saving, reduction soot emissions can be improved under certain conditions
Concentration, wherein containing flue gas conditioning and low temperature electrostatic precipitation technology.
The essence of flue gas conditioning is for the dust in flue gas, by adjusting the component and some objects of flue gas or exhaust gas dust
Characteristic is managed, to reduce dust specific resistance or change the physicochemical characteristics of dust, improves dust collection efficiency.Flue gas conditioning technology
Application, thoroughly change the dedusting technology pattern of traditional electric precipitation passive adaptation dust, duty parameter, be the leather of electrostatic precipitation technology
Life property technology.
Low temperature electric precipitator technology is that electric precipitator entrance flue gas temperature is reduced to acid dew point hereinafter, can effectively drop
Low dust specific resistance reduces flue gas volume flow, improves efficiency of dust collection.
Exhaust gas temperature generally maintains 125~150 DEG C of left and right horizontals, high fume temperature in China's active service fired power generating unit
It is a universal phenomenon.If effectively reducing deduster entrance flue gas temperature, while quenched to flue gas progress, change the group of flue dust
Divide and physical property integrates to which low temperature electric precipitation and flue gas conditioning are combined and improves dust collector efficiency.
Meanwhile increasingly frequently occurring in China with haze weather in recent years, " white cigarette " phenomenon attracts wide attention,
Visual pollution is serious, and coal-burning power plant causes to seriously affect to ambient enviroment and resident living.
Existing to realize the treatment process for eliminating white misty rain, one is the technologies from Japan, utilize boiler tail original cigarette
The processed neat stress of waste-heat in gas adjusts difficulty, and can make since the load variations of domestic unit are larger
At the waste of heat；Another is first cooling condensation, rear to be handled using the former waste-heat using in boiler tail original flue gas
The neat stress crossed, this complex process, investment are larger.
Utility model content
In order to solve the problems existing in the prior art, the utility model provides a kind of white misty rain joint fume afterheat time of elimination
Receipts system.
The white misty rain of elimination described in the utility model combines flue gas waste heat recovery system, including is sequentially connected by pipeline
Gas cooler, low temperature electrostatic deduster, air-introduced machine and smoke re-heater and internal circulation system, internal circulation system include again
Water circulating pump and joint heat exchanger, gas cooler hot water outlet are connected by combining heat exchanger with smoke re-heater pipeline, cigarette
Gas reheater water out is connected by recycling water pump with gas cooler pipeline, and joint heat exchanger import is provided with auxiliary steam
Pipe and low pressure condensation water water inlet pipe, air vent pipework and low pressure condensation water water inlet pipe after combining heat exchanger respectively with hydrophobic expansion
Container and low pressure condensation water piping connection.
Further, internal circulation system further includes small pump and water supply tank, small pump, water supply tank and recycling pump entrance
It is sequentially communicated.
Further include wet desulfuration tower, the wet desulfuration tower is connected to by pipeline to be drawn to carry out desulfurization process to flue gas
Between wind turbine and smoke re-heater.
The white misty rain joint flue gas waste heat recovery system of elimination described in the utility model is while eliminating white misty rain
Come carry out flue gas conditioning and reduce smoke temperature, improve efficiency of dust collection.The utility model is in underload, boiler tail flue gas
Waste heat is not enough to eliminate neat stress when going out the white misty rain of chimney, using auxiliary steam heat, meets environmental requirement；It again can be
High load capacity operating mode, when tail flue gas waste heat excess, meet eliminate chimney white misty rain while, low temperature electric precipitator will be entered
Flue-gas temperature reach its optimum setting value, extra heat reduces resource loss for heating low pressure condensation water.
Description of the drawings
Fig. 1：The utility model structure diagram；
In figure：1, boiler air preheater；2, gas cooler；3, low temperature electrostatic deduster；4, air-introduced machine；5, wet desulphurization
Tower, 6, smoke re-heater；7, chimney；8, small pump, 9, water supply tank, 10, recycling water pump；11, combine heat exchanger.
Specific implementation mode
It eliminates white misty rain joint flue gas waste heat recovery system and disappears for coal-burning power plant in coal-burning power plant described in the utility model
Except the white misty rain of elimination and carry out flue gas waste heat recovery.
As shown in Figure 1, coal-burning power plant described in the utility model, which eliminates white misty rain, combines flue gas waste heat recovery system, including
Boiler air preheater 1, gas cooler 2, low temperature electrostatic deduster 3, air-introduced machine 4, the wet desulfuration tower being sequentially communicated by pipeline
5, small pump 8, water supply tank 9, recycling water pump 10 and the joint being arranged on smoke re-heater 6 and chimney 7 and internal circulation system
Heat exchanger 11,2 hot water outlet of the gas cooler are connected by combining heat exchanger 11 with 6 pipeline of smoke re-heater, the cigarette
6 water out of gas reheater is connected by recycling water pump 10 with 2 pipeline of gas cooler, and the moisturizing is by small pump 8, moisturizing
Case 9 is connected to recycling 10 entrance of water pump, the auxiliary steam pipeline and low pressure condensation water water inlet pipe with combine heat exchanger 11 into
Mouth pipeline is connected, and arrives hydrophobic development unit and low pressure condensation water pipeline respectively after combining heat exchanger.
The white misty rain joint flue gas waste heat recovery system of elimination described in the utility model is while eliminating white misty rain
Come carry out flue gas conditioning and reduce smoke temperature, improve efficiency of dust collection.The utility model is in underload, boiler tail flue gas
Waste heat is not enough to eliminate neat stress when going out the white misty rain of chimney, using auxiliary steam heat, meets environmental requirement；It again can be
High load capacity operating mode, when tail flue gas waste heat excess, meet eliminate chimney white misty rain while, low temperature electric precipitator will be entered
Flue-gas temperature reach its optimum setting value, extra heat reduces resource loss for heating low pressure condensation water.
Claims (3)
1. a kind of white misty rain of elimination combines flue gas waste heat recovery system, including by the sequentially connected gas cooler of pipeline,
Low temperature electrostatic deduster, air-introduced machine and smoke re-heater and internal circulation system, it is characterised in that：Internal circulation system includes following again
Ring water pump and joint heat exchanger, gas cooler hot water outlet are connected by combining heat exchanger with smoke re-heater pipeline, flue gas
Reheater water out is connected by recycling water pump with gas cooler pipeline, and joint heat exchanger import is provided with air vent pipework
With low pressure condensation water water inlet pipe, air vent pipework and low pressure condensation water water inlet pipe after combining heat exchanger respectively with dewatering capacity-enlarging
Device and low pressure condensation water piping connection.
2. the white misty rain of elimination according to claim 1 combines flue gas waste heat recovery system, it is characterised in that：Interior cyclic system
System further includes small pump and water supply tank, and small pump, water supply tank and recycling pump entrance are sequentially communicated.
3. the white misty rain of elimination according to claim 1 combines flue gas waste heat recovery system, it is characterised in that：Further include wet
Method desulfurizing tower, the wet desulfuration tower are connected to by pipeline between air-introduced machine and smoke re-heater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820293159.0U CN207907270U (en) | 2018-03-02 | 2018-03-02 | A kind of white misty rain joint flue gas waste heat recovery system of elimination |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820293159.0U CN207907270U (en) | 2018-03-02 | 2018-03-02 | A kind of white misty rain joint flue gas waste heat recovery system of elimination |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207907270U true CN207907270U (en) | 2018-09-25 |
Family
ID=63560339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820293159.0U Active CN207907270U (en) | 2018-03-02 | 2018-03-02 | A kind of white misty rain joint flue gas waste heat recovery system of elimination |
Country Status (1)
| Country | Link |
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| CN (1) | CN207907270U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108224462A (en) * | 2018-03-02 | 2018-06-29 | 南京圣诺热管有限公司 | It is a kind of to eliminate white misty rain joint flue gas waste heat recovery system |
-
2018
- 2018-03-02 CN CN201820293159.0U patent/CN207907270U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108224462A (en) * | 2018-03-02 | 2018-06-29 | 南京圣诺热管有限公司 | It is a kind of to eliminate white misty rain joint flue gas waste heat recovery system |
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Legal Events
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221215 Address after: No. 1, Mintai Avenue, Yizheng Economic Development Zone, Yangzhou City, Jiangsu Province, 211402 Patentee after: Jiangsu Shengnuo Energy Saving Technology Engineering Co.,Ltd. Address before: No. 30, Dingjiaqiao, Gulou District, Nanjing, Jiangsu 210009 Patentee before: NANJING SHENGNUO HEAT PIPE Co.,Ltd. |