CN108224462A - It is a kind of to eliminate white misty rain joint flue gas waste heat recovery system - Google Patents
It is a kind of to eliminate white misty rain joint flue gas waste heat recovery system Download PDFInfo
- Publication number
- CN108224462A CN108224462A CN201810174409.3A CN201810174409A CN108224462A CN 108224462 A CN108224462 A CN 108224462A CN 201810174409 A CN201810174409 A CN 201810174409A CN 108224462 A CN108224462 A CN 108224462A
- Authority
- CN
- China
- Prior art keywords
- flue gas
- water
- pipeline
- waste heat
- misty rain
- 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
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 37
- 239000003546 flue gas Substances 0.000 title claims abstract description 37
- 239000002918 waste heat Substances 0.000 title claims abstract description 20
- 238000011084 recovery Methods 0.000 title claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 27
- 239000007789 gas Substances 0.000 claims abstract description 15
- 239000000779 smoke Substances 0.000 claims abstract description 11
- 238000004064 recycling Methods 0.000 claims abstract description 10
- 238000009833 condensation Methods 0.000 claims description 11
- 230000005494 condensation Effects 0.000 claims description 11
- 238000006477 desulfuration reaction Methods 0.000 claims description 5
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 4
- 230000003009 desulfurizing effect Effects 0.000 claims description 2
- 230000008676 import Effects 0.000 claims description 2
- 125000004122 cyclic group Chemical group 0.000 claims 1
- 239000000428 dust Substances 0.000 abstract description 13
- 238000005516 engineering process Methods 0.000 description 10
- 230000003750 conditioning effect Effects 0.000 description 6
- 239000012716 precipitator Substances 0.000 description 5
- 235000019504 cigarettes Nutrition 0.000 description 4
- 230000007812 deficiency Effects 0.000 description 2
- 238000005367 electrostatic precipitation Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000003517 fume Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000002209 hydrophobic effect Effects 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000003500 flue dust Substances 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 230000003020 moisturizing effect Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 239000002699 waste material Substances 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
-
- 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
-
- 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)
- Chimneys And Flues (AREA)
Abstract
The present invention provides a kind of white misty rain of eliminating and 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, internal circulation system includes recycling water pump and joint heat exchanger.The present invention improves efficiency of dust collection, meets different load operating condition, while reduce energy loss.
Description
Technical field
White misty rain technical field is utilized and eliminated the invention belongs to fume afterheat, and in particular to is eliminated a kind of coal-burning power plant
White misty rain combines flue gas waste heat recovery system.
Background technology
At present, Thermal Power Generation Industry coal consumption accounts for about the 50% of national energy consumption total amount, 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 electric precipitator, desulfurizing tower should
It uses and employs 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, so as 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
Point and physical property, so that low temperature electric precipitation and flue gas conditioning are combined, comprehensive raising dust collector efficiency.
Meanwhile in recent years as haze weather increasingly frequently occurs in China, " 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, a kind of is the technology from Japan, utilizes boiler tail original cigarette
The processed neat stress of waste-heat in gas since the load variations of domestic unit are larger, adjusts difficulty, and can make
Into 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.
Invention content
Of the existing technology to solve the problems, such as, the present invention provides a kind of elimination white misty rain joint flue gas waste heat recovery system
System.
It is of the present invention to eliminate white misty rain joint flue gas waste heat recovery system, including passing through the sequentially connected cigarette of pipeline
Gas Cooler, low temperature electrostatic deduster, air-introduced machine and smoke re-heater and internal circulation system, internal circulation system include recycling
Water pump and joint heat exchanger, gas cooler hot water outlet are connected by combining heat exchanger with smoke re-heater pipeline, and flue gas is again
Hot device water out is connected by recycling water pump with gas cooler pipeline, joint heat exchanger import be provided with air vent pipework 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 development unit
And low pressure condensation water pipeline 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.
To carry out desulfurization process to flue gas, wet desulfuration tower is further included, the wet desulfuration tower is connected to by pipeline to be drawn
Between wind turbine and smoke re-heater.
It is of the present invention eliminate white misty rain joint flue gas waste heat recovery system come while white misty rain is eliminated into
Row flue gas conditioning and reduction smoke temperature, improve efficiency of dust collection.The present invention is in underload, flue gas waste heat at the end of boiler deficiency
When going out the white misty rain of chimney to eliminate neat stress, using auxiliary steam heat, meet environmental requirement；It again can be in high load capacity work
Condition, during tail flue gas waste heat excess, meet eliminate chimney white misty rain while, the flue gas temperature of low temperature electric precipitator will be entered
Degree reaches its optimum setting value, and extra heat reduces resource loss for heating low pressure condensation water.
Description of the drawings
Fig. 1：Schematic structural view of the invention；
In figure：1st, boiler air preheater；2nd, gas cooler；3rd, low temperature electrostatic deduster；4th, air-introduced machine；5th, wet desulphurization
Tower, 6, smoke re-heater；7th, chimney；8th, small pump, 9, water supply tank, 10, recycling water pump；11st, combine heat exchanger.
Specific embodiment
It eliminates white misty rain joint flue gas waste heat recovery system and disappears for coal-burning power plant in coal-burning power plant of the present invention
Except white misty rain and carry out flue gas waste heat recovery.
As shown in Figure 1, coal-burning power plant of the present invention eliminates white misty rain joint flue gas waste heat recovery system, including passing through
Boiler air preheater 1 that pipeline is sequentially communicated, gas cooler 2, low temperature electrostatic deduster 3, air-introduced machine 4, wet desulfuration tower 5, cigarette
Small pump 8, water supply tank 9, recycling water pump 10 and the joint heat exchange set on gas reheater 6 and chimney 7 and internal circulation system
Device 11,2 hot water outlet of gas cooler are connected by combining heat exchanger 11 with 6 pipeline of smoke re-heater, and the flue gas is again
Hot 6 water out of device is connected by recycling water pump 10 with 2 pipeline of gas cooler, and the moisturizing is by small pump 8, water supply tank 9
It is connected with recycling 10 entrance of water pump, the auxiliary steam pipeline and low pressure condensation water water inlet pipe are with combining 11 inlet tube of heat exchanger
Road is connected, and arrives hydrophobic development unit and low pressure condensation water pipeline respectively after combining heat exchanger.
It is of the present invention eliminate white misty rain joint flue gas waste heat recovery system come while white misty rain is eliminated into
Row flue gas conditioning and reduction smoke temperature, improve efficiency of dust collection.The present invention is in underload, flue gas waste heat at the end of boiler deficiency
When going out the white misty rain of chimney to eliminate neat stress, using auxiliary steam heat, meet environmental requirement；It again can be in high load capacity work
Condition, during tail flue gas waste heat excess, meet eliminate chimney white misty rain while, the flue gas temperature of low temperature electric precipitator will be entered
Degree reaches its optimum setting value, and extra heat reduces resource loss for heating low pressure condensation water.
Claims (3)
1. a kind of eliminate white misty rain joint 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 the connection of low pressure condensation water pipeline.
2. according to claim 1 eliminate white misty rain joint 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. according to claim 1 eliminate white misty rain joint flue gas waste heat recovery system, it is characterised in that：It further includes 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 |
|---|---|---|---|
| CN201810174409.3A CN108224462A (en) | 2018-03-02 | 2018-03-02 | It is a kind of to eliminate white misty rain joint flue gas waste heat recovery system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810174409.3A CN108224462A (en) | 2018-03-02 | 2018-03-02 | It is a kind of to eliminate white misty rain joint flue gas waste heat recovery system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108224462A true CN108224462A (en) | 2018-06-29 |
Family
ID=62664668
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810174409.3A Pending CN108224462A (en) | 2018-03-02 | 2018-03-02 | It is a kind of to eliminate white misty rain joint flue gas waste heat recovery system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108224462A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108787168A (en) * | 2018-07-05 | 2018-11-13 | 中国华电科工集团有限公司 | A kind of electric precipitator with heat exchange function |
| CN109395882A (en) * | 2018-12-28 | 2019-03-01 | 福建龙净环保股份有限公司 | A kind of dust-collecting and heat exchanging disappears white equipment and system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104048307A (en) * | 2014-05-29 | 2014-09-17 | 舒少辛 | Smoke waste heat comprehensive utilization device and method |
| CN106090971A (en) * | 2016-07-06 | 2016-11-09 | 大唐(北京)能源管理有限公司 | A kind of combined steam flue gas MGGH system and method |
| CN206347555U (en) * | 2016-12-20 | 2017-07-21 | 中国能源建设集团浙江省电力设计院有限公司 | A kind of economic benefits and social benefits supplementary heat exchanger system for MGGH |
| CN207907270U (en) * | 2018-03-02 | 2018-09-25 | 南京圣诺热管有限公司 | A kind of white misty rain joint flue gas waste heat recovery system of elimination |
-
2018
- 2018-03-02 CN CN201810174409.3A patent/CN108224462A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104048307A (en) * | 2014-05-29 | 2014-09-17 | 舒少辛 | Smoke waste heat comprehensive utilization device and method |
| CN106090971A (en) * | 2016-07-06 | 2016-11-09 | 大唐(北京)能源管理有限公司 | A kind of combined steam flue gas MGGH system and method |
| CN206347555U (en) * | 2016-12-20 | 2017-07-21 | 中国能源建设集团浙江省电力设计院有限公司 | A kind of economic benefits and social benefits supplementary heat exchanger system for MGGH |
| CN207907270U (en) * | 2018-03-02 | 2018-09-25 | 南京圣诺热管有限公司 | A kind of white misty rain joint flue gas waste heat recovery system of elimination |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108787168A (en) * | 2018-07-05 | 2018-11-13 | 中国华电科工集团有限公司 | A kind of electric precipitator with heat exchange function |
| CN109395882A (en) * | 2018-12-28 | 2019-03-01 | 福建龙净环保股份有限公司 | A kind of dust-collecting and heat exchanging disappears white equipment and system |
| CN109395882B (en) * | 2018-12-28 | 2024-01-09 | 福建龙净环保股份有限公司 | Dust removal heat transfer white equipment and system that disappears |
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| 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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180629 |