CN107101217A - A kind of low-level (stack-gas) economizer smoke pre-heating reclaims desulphurization system - Google Patents
A kind of low-level (stack-gas) economizer smoke pre-heating reclaims desulphurization system Download PDFInfo
- Publication number
- CN107101217A CN107101217A CN201710513622.8A CN201710513622A CN107101217A CN 107101217 A CN107101217 A CN 107101217A CN 201710513622 A CN201710513622 A CN 201710513622A CN 107101217 A CN107101217 A CN 107101217A
- Authority
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- China
- Prior art keywords
- water tank
- rear end
- gas
- stack
- inner sleeve
- 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
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- 239000000779 smoke Substances 0.000 title claims abstract description 15
- 238000010438 heat treatment Methods 0.000 title claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 36
- 230000003009 desulfurizing effect Effects 0.000 claims abstract description 12
- 239000000428 dust Substances 0.000 claims abstract description 9
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000005864 Sulphur Substances 0.000 claims 1
- 239000007789 gas Substances 0.000 abstract description 12
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 11
- 239000003546 flue gas Substances 0.000 abstract description 10
- 238000011084 recovery Methods 0.000 abstract description 3
- 229910052717 sulfur Inorganic materials 0.000 abstract description 3
- 239000011593 sulfur Substances 0.000 abstract description 3
- 239000002918 waste heat Substances 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 3
- 239000003245 coal Substances 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000003517 fume 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
- F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L15/00—Heating of air supplied for combustion
-
- 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
-
- 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
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Abstract
Desulphurization system, including dust removal machine are reclaimed the invention provides a kind of low-level (stack-gas) economizer smoke pre-heating；The rear end of the dust removal machine is connected with negative-pressure air fan, the rear end of the negative-pressure air fan is connected with inner sleeve, the rear end of the inner sleeve is connected with water tank revolution pipeline, the rear end of the water tank revolution pipeline is connected with desulfurizing tower, the rear end of the desulfurizing tower is connected with chimney, the inner sleeve is arranged in air preheater inlet pipe, and the water tank revolution pipeline is arranged in water tank.The present invention is by air preheater inlet pipe and water tank by the waste heat recovery of the flue gas of boiler, it is not only able to improve the EAT of air preheater, make the exhaust temperature of boiler smoke lower after water in water tank absorbs temperature below, the discharge of sulfur content in flue gas is reduced by desulfurizing tower.
Description
Technical field
Desulphurization system is reclaimed the present invention relates to a kind of low-level (stack-gas) economizer smoke pre-heating.
Background technology
Station boiler flue gas loss is a most important heat loss in boiler operatiopn, and the exhaust gas temperature of station boiler is usual
For 110~130 DEG C, corresponding heat loss accounts for the 60%~70% of boiler heat loss equivalent to the 5%~12% of fuel heat.
National Development and Reform Committee, National Energy Board, the Ministry of Finance are issued with [2012] No. 1662 texts within 2012《It is coal-fired on carrying out
Power plant integrates the notice of upgrading work》, it is desirable to each electricity power enterprise is more than 100,000 kilowatts, less than 1,000,000 for single-machine capacity
Kilowatt coal unit implement comprehensive upgrading, the year amount of energy saving of project includes generating electricity consumption reduction and heat supply transformation puies forward effect two
Point, and give a series of support of preferential policies.What wherein steam generator system transformation project was classified as first term is that " boiler exhaust gas waste heat is returned
Receive and utilize ", the effect that upgrading puies forward effect is " to utilize heat exchanger technology using fume afterheat, if exhaust gas temperature reduces by 30 DEG C, unit is supplied
Electric coal consumption can reduce by 1.8 grams/kilowatt hour, and desulphurization system water consumption reduces 70% ".
The exhaust gas temperature of current domestic newly-built 600MW and the above capacity fired power generating unit is mostly at 110 DEG C~130 DEG C
Between.In theory, for the boiler that exhaust gas temperature is 110 DEG C~130 DEG C, traditional theory, which thinks to have met, require that,
Through than relatively low, continuing to reduce the appearance that the unreliable factors such as low-temperature corrosion may occur.But the flue gas ring of national requirements
Protect the raising of index, it is necessary to set up desulfurizer in afterbody.And the optimum working temperature of wet desulphurization is 80 DEG C~90 DEG C, from
110 DEG C~130 DEG C of flue-gas temperature is reduced to 80 DEG C~90 DEG C, wherein containing substantial amounts of heat.Other devices must be set up
Exhaust gas temperature is continued to reduce, to meet the requirement of desulfurization, while being energy-conservation, the requirement of water saving again.
The content of the invention
In order to solve the above technical problems, reclaiming desulphurization system the invention provides a kind of low-level (stack-gas) economizer smoke pre-heating.
The present invention is achieved by the following technical programs.
A kind of low-level (stack-gas) economizer smoke pre-heating that the present invention is provided reclaims desulphurization system, including dust removal machine；The dust removal machine
Rear end be connected with negative-pressure air fan, the rear end of the negative-pressure air fan is connected with inner sleeve, and the rear end of the inner sleeve is returned with water tank
Tube road is connected, and the rear end of the water tank revolution pipeline is connected with desulfurizing tower, and the rear end of the desulfurizing tower is connected with chimney, described
Inner sleeve is arranged in air preheater inlet pipe, and the water tank revolution pipeline is arranged in water tank.
The water tank revolution pipeline and inner sleeve are that spiral pipe is set.
The rear end of the water tank revolution pipeline is additionally provided with pressure valve.
The rear end of the pressure valve is additionally provided with booster pump.
The air preheater inlet pipe is connected with air preheater.
The beneficial effects of the present invention are：By air preheater inlet pipe and water tank by the default recovery of the flue gas of boiler, not only
The throttle (steam) temperature of air preheater can be improved, behind by water tank water absorb temperature after make the exhaust temperature of boiler smoke
It is lower, the discharge of sulfur content in flue gas is reduced by desulfurizing tower.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
In figure：1- dust removal machines, 2- negative-pressure air fans, 3- air preheaters, 4- air preheater inlet pipes, 5- water tanks, 6- pressure valves, 7- water tanks
Turn round pipeline, 8- inner sleeves, 9- booster pumps, 10- chimneys, 11- desulfurizing towers.
Embodiment
Be described further below technical scheme, but claimed scope be not limited to it is described.
A kind of low-level (stack-gas) economizer smoke pre-heating reclaims desulphurization system, including dust removal machine 1；The rear end connection of the dust removal machine 1
There is negative-pressure air fan 2, the rear end of the negative-pressure air fan 2 is connected with inner sleeve 8, rear end and the water tank of the inner sleeve 8 turn round pipeline 7
Connection, the rear end of the water tank revolution pipeline 7 is connected with desulfurizing tower 11, and the rear end of the desulfurizing tower 11 is connected with chimney 10, institute
Inner sleeve 8 is stated in air preheater inlet pipe 4, the water tank revolution pipeline 7 is arranged in water tank 5.By air preheater inlet pipe and
The default recovery of the flue gas of boiler is not only able to improve the throttle (steam) temperature of air preheater by water tank 5, behind by water tank
Water makes the exhaust temperature of boiler smoke lower after absorbing temperature, and the discharge of sulfur content in flue gas is reduced by desulfurizing tower.
The water tank revolution pipeline 7 and inner sleeve 8 are that spiral pipe is set.
The rear end of the water tank revolution pipeline 7 is additionally provided with pressure valve 6, and reducing water tank by pressure valve 6 turns round pipeline 7
Make its heat exchange more abundant with the flowing velocity of flue gas in inner sleeve 8.
The rear end of the pressure valve 6 is additionally provided with booster pump 9, and booster pump 9 adds the speed that flue gas enters desulfurizing tower,
Add the mass rate of emission of chimney.
The air preheater inlet pipe 4 is connected with air preheater 3.
Claims (5)
1. a kind of low-level (stack-gas) economizer smoke pre-heating reclaims desulphurization system, including dust removal machine (1), it is characterised in that：The dust removal machine
(1) rear end is connected with negative-pressure air fan (2), and the rear end of the negative-pressure air fan (2) is connected with inner sleeve (8), the inner sleeve (8)
Rear end and water tank revolution pipeline (7) be connected, the rear end of the water tank revolution pipeline (7) is connected with desulfurizing tower (11), described to take off
The rear end of sulphur tower (11) is connected with chimney (10), and the inner sleeve (8) is arranged in air preheater inlet pipe (4), the water tank revolution
Pipeline (7) is arranged in water tank (5).
2. low-level (stack-gas) economizer smoke pre-heating as claimed in claim 1 reclaims desulphurization system, it is characterised in that：The water tank revolution
Pipeline (7) and inner sleeve (8) are that spiral pipe is set.
3. low-level (stack-gas) economizer smoke pre-heating as claimed in claim 1 reclaims desulphurization system, it is characterised in that：The water tank revolution
The rear end of pipeline (7) is additionally provided with pressure valve (6).
4. low-level (stack-gas) economizer smoke pre-heating as claimed in claim 1 reclaims desulphurization system, it is characterised in that：The pressure valve
(6) rear end is additionally provided with booster pump (9).
5. low-level (stack-gas) economizer smoke pre-heating as claimed in claim 1 reclaims desulphurization system, it is characterised in that：The air preheater enters
Pipe (4) is connected with air preheater (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710513622.8A CN107101217A (en) | 2017-06-29 | 2017-06-29 | A kind of low-level (stack-gas) economizer smoke pre-heating reclaims desulphurization system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710513622.8A CN107101217A (en) | 2017-06-29 | 2017-06-29 | A kind of low-level (stack-gas) economizer smoke pre-heating reclaims desulphurization system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107101217A true CN107101217A (en) | 2017-08-29 |
Family
ID=59664149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710513622.8A Pending CN107101217A (en) | 2017-06-29 | 2017-06-29 | A kind of low-level (stack-gas) economizer smoke pre-heating reclaims desulphurization system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107101217A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE8306679D0 (en) * | 1983-12-02 | 1983-12-02 | Svenska Rotor Maskiner Ab | SET AND DEVICE TO REDUCE THE SULFUR CONTENT OF ROCK GASES |
| CN201715542U (en) * | 2010-06-30 | 2011-01-19 | 中国电力工程顾问集团华东电力设计院 | Two-stage flue gas-air heat exchanger system applied to fuel electric plant |
| CN201795471U (en) * | 2010-07-19 | 2011-04-13 | 中国电力工程顾问集团华东电力设计院 | Flue gas afterheat utilization system |
| CN203203018U (en) * | 2013-04-27 | 2013-09-18 | 中国大唐集团环境技术有限公司 | Desulfurized flue gas waste heat utilization system |
| CN204388102U (en) * | 2014-12-31 | 2015-06-10 | 福建龙净环保股份有限公司 | A kind of flue gas waste heat utilization device |
| CN105605598A (en) * | 2016-03-10 | 2016-05-25 | 王欣 | Power station boiler smoke waste heat system capable of improving unit performance |
| CN105879414A (en) * | 2016-05-26 | 2016-08-24 | 武汉斯奇环保科技有限公司 | Desulfurization waste water treatment device of coal-fired boiler |
| US20170160013A1 (en) * | 2014-09-24 | 2017-06-08 | Cas Super Energy Technology Jingjiang Ltd. | Denitration and waste heat recovery integrated furnace |
| CN207247244U (en) * | 2017-06-29 | 2018-04-17 | 大唐贵州兴仁发电有限公司 | A kind of low-level (stack-gas) economizer smoke pre-heating recycles desulphurization system |
-
2017
- 2017-06-29 CN CN201710513622.8A patent/CN107101217A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE8306679D0 (en) * | 1983-12-02 | 1983-12-02 | Svenska Rotor Maskiner Ab | SET AND DEVICE TO REDUCE THE SULFUR CONTENT OF ROCK GASES |
| CN201715542U (en) * | 2010-06-30 | 2011-01-19 | 中国电力工程顾问集团华东电力设计院 | Two-stage flue gas-air heat exchanger system applied to fuel electric plant |
| CN201795471U (en) * | 2010-07-19 | 2011-04-13 | 中国电力工程顾问集团华东电力设计院 | Flue gas afterheat utilization system |
| CN203203018U (en) * | 2013-04-27 | 2013-09-18 | 中国大唐集团环境技术有限公司 | Desulfurized flue gas waste heat utilization system |
| US20170160013A1 (en) * | 2014-09-24 | 2017-06-08 | Cas Super Energy Technology Jingjiang Ltd. | Denitration and waste heat recovery integrated furnace |
| CN204388102U (en) * | 2014-12-31 | 2015-06-10 | 福建龙净环保股份有限公司 | A kind of flue gas waste heat utilization device |
| CN105605598A (en) * | 2016-03-10 | 2016-05-25 | 王欣 | Power station boiler smoke waste heat system capable of improving unit performance |
| CN105879414A (en) * | 2016-05-26 | 2016-08-24 | 武汉斯奇环保科技有限公司 | Desulfurization waste water treatment device of coal-fired boiler |
| CN207247244U (en) * | 2017-06-29 | 2018-04-17 | 大唐贵州兴仁发电有限公司 | A kind of low-level (stack-gas) economizer smoke pre-heating recycles desulphurization system |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170829 |
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| RJ01 | Rejection of invention patent application after publication |