CN102207289B - Device and method for regulating flue gas ingredients of side wall water cooling wall of front-rear wall hedging combustion boiler automatically - Google Patents
Device and method for regulating flue gas ingredients of side wall water cooling wall of front-rear wall hedging combustion boiler automatically Download PDFInfo
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- CN102207289B CN102207289B CN201110133813A CN201110133813A CN102207289B CN 102207289 B CN102207289 B CN 102207289B CN 201110133813 A CN201110133813 A CN 201110133813A CN 201110133813 A CN201110133813 A CN 201110133813A CN 102207289 B CN102207289 B CN 102207289B
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- control system
- flue gas
- data management
- parameter
- smoke components
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 32
- 239000003546 flue gas Substances 0.000 title claims abstract description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 22
- 238000001816 cooling Methods 0.000 title claims abstract description 20
- 230000001105 regulatory effect Effects 0.000 title claims abstract 4
- 238000000034 method Methods 0.000 title claims description 9
- 238000002485 combustion reaction Methods 0.000 title abstract 2
- 239000004615 ingredient Substances 0.000 title abstract 2
- 238000012544 monitoring process Methods 0.000 claims abstract description 23
- 238000004458 analytical method Methods 0.000 claims description 53
- 239000000779 smoke Substances 0.000 claims description 32
- 238000013523 data management Methods 0.000 claims description 29
- 239000003517 fume Substances 0.000 claims description 20
- 238000010304 firing Methods 0.000 claims description 15
- 238000010977 unit operation Methods 0.000 claims description 15
- 238000012546 transfer Methods 0.000 claims description 9
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 8
- 229910052760 oxygen Inorganic materials 0.000 claims description 8
- 239000001301 oxygen Substances 0.000 claims description 8
- 230000006978 adaptation Effects 0.000 claims description 3
- 238000012216 screening Methods 0.000 claims description 2
- 230000001276 controlling effect Effects 0.000 claims 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 abstract description 5
- 238000012545 processing Methods 0.000 abstract description 4
- 229910052717 sulfur Inorganic materials 0.000 abstract description 4
- 239000011593 sulfur Substances 0.000 abstract description 4
- 238000005260 corrosion Methods 0.000 abstract description 3
- 230000007797 corrosion Effects 0.000 abstract description 3
- 230000009897 systematic effect Effects 0.000 description 3
- 239000003245 coal Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000005864 Sulphur Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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Abstract
The invention discloses a device for regulating flue gas ingredients of a side wall water cooling wall of a front-rear wall hedging combustion boiler automatically. The device comprises a flue gas online analyzing device, a flue gas continuous monitoring system, a hot air adding device and a data processing and analyzing control system, wherein data output ends of the flue gas online analyzing device and the flue gas continuous monitoring system are connected with a signal input end of the data processing and analyzing control system through a data collecting channel; a signal output end of the data processing and analyzing control system is connected with a signal control end of the hot air adding device; the hot air adding device is arranged on a water cooling wall, and an air outlet of the hot air adding device aims at the water cooling wall. According to the invention, the reducing atmosphere can be eliminated rapidly in real time, and the generation of H2S can be inhibited, thus the problem that pipes of the water cooling wall need changing because of the corrosion of high-temperature reducible sulfur can be overcome, not only is the replacing expense saved, but also the safe and economical operation of a boiler can be ensured.
Description
Technical field
The invention belongs to the Opposite Firing Boiler field, relate in particular to a kind of method that can regulate Opposite Firing Boiler water-cooling wall smoke components automatically.
Background technology
The characteristics of the front-back wall opposed firing of Opposite Firing Boiler cause flame impingement boiler side water wall, and a large amount of unburnt coal dusts burn herein, form strong reducing atmosphere: high CO concentration, low O
2Concentration.If the sulfur content that uses in the coal is higher, under the effect of reducing atmosphere, sulphur is prone to generate the very strong H of corrosivity
2S forms so-called high-temperature reductibility sulfur corrosion, thereby water-cooling wall tubing is had a negative impact.And the fume continuous monitoring system at desulphurization system place can only play monitoring desulphurization system inlet flue gas composition at present; Can't directly monitor the smoke components at water-cooling wall place; Do not control the function of smoke components automatically; When the water screen tube attenuate seriously just needs the large tracts of land replace tubes, therefore cause the running time of boiler short, have a strong impact on boiler safety, operation economically.
Summary of the invention
The purpose of this invention is to provide a kind of apparatus and method that can regulate Opposite Firing Boiler water-cooling wall smoke components automatically, the boiler side water wall is not corroded, thereby make boiler safety, operation economically.
The present invention adopts following technical proposals: a kind of device of automatic adjusting Opposite Firing Boiler side water wall smoke components; Comprise flue gas on-line analysis device, fume continuous monitoring system; Also comprise hot blast adding set and Data Management Analysis control system; The data output end of said flue gas on-line analysis device and fume continuous monitoring system is connected through the signal input part of data acquisition channel with Data Management Analysis control system; The signal output part of Data Management Analysis control system is connected with the signal controlling end of hot blast adding set, and the hot blast adding set is arranged on the water-cooling wall, and its air outlet is aimed at water-cooling wall.
The signal input part of Data Management Analysis control system also is connected through the data output end of data acquisition channel with unit operation control system.
A kind of method of automatic adjusting Opposite Firing Boiler side water wall smoke components may further comprise the steps: the operational factor of unit operation control system, flue gas on-line analysis device and fume continuous monitoring system is collected by (1), described Data Management Analysis control system through data acquisition channel; (2), Data Management Analysis control system screens the parameter that receives, and filters out the parameter that need judge; (3), Data Management Analysis control system judges the parameter of screening, thereby the output control signal is given the valve of hot blast adding set, controls its valve opening and regulates smoke components.
The parameter that need judge in the described step (2) is: the O in the flue gas on-line analysis device
2, CO
2, H
2SO in S content, the fume continuous monitoring system parameter
2Furnace outlet oxygen amount in the parameter of content, unit operation control system; Rule of judgment in the step (3) is: (a), if the smoke components of flue gas on-line analysis device in O
2+ CO
2<17% (percent by volume), and H
2SO in the parameter of S>=0.01% (percent by volume) or fume continuous monitoring system
2>=3000mg/Nm
3Or furnace outlet oxygen amount in the parameter of unit operation control system<1.5% (percent by volume), then Data Management Analysis control system output signal makes the valve of hot blast adding set transfer to maximum; (b), as if O in the smoke components of flue gas on-line analysis device
2+ CO
2>=19% (percent by volume), and the duration surpass 3 minutes, then Data Management Analysis control system output signal makes the valve of hot blast adding set transfer to minimum; (c), if in the smoke components of flue gas on-line analysis device: 17%≤O
2+ CO
2<19%, (percent by volume), this moment, then Data Management Analysis control system output signal made the valve of hot blast adding set transfer to the adaptation aperture, changed the smoke components of water-cooling wall position.
The present invention can real-time collecting Opposite Firing Boiler water-cooling wall smoke components, unit operation parameter and fume continuous monitoring system operational factor; Carry out the parameter analysis then; Automatically control the smoke components that the hot blast adding set changes the boiler side water wall again; Can eliminate reducing atmosphere real-time, suppress H
2The generation of S can not changed the tubing of water-cooling wall because of the high-temperature reductibility sulfur corrosion, has both practiced thrift renewal cost, guaranteed again boiler can be safely, operation economically.
Description of drawings
Fig. 1 is an apparatus structure sketch map of the present invention;
Fig. 2 is a method flow diagram of the present invention.
The specific embodiment
As shown in Figure 1; The device that the present invention regulates Opposite Firing Boiler side water wall smoke components automatically comprises flue gas on-line analysis device, fume continuous monitoring system, hot blast adding set and Data Management Analysis control system; Flue gas on-line analysis device is installed on the side water wall; Be used for detecting smoke components; Fume continuous monitoring system is installed in the porch of desulphurization system; Desulphurization system porch flue gas is monitored, and the data output end of flue gas on-line analysis device and fume continuous monitoring system is connected through the signal input part of data acquisition channel with Data Management Analysis control system, and the signal input part of Data Management Analysis control system also is connected with unit operation control system through data acquisition channel; The signal output part of Data Management Analysis control system is connected with the signal controlling end of hot blast adding set; Wherein Data Management Analysis control system adopts single-chip microcomputer or computer; The hot blast adding set is a mature technology; It is arranged on outside the water-cooling wall, and air outlet is aimed at water-cooling wall, regulates the hot blast rate that its valve opening can be controlled its output.
Utilize the automatically adjust method of Opposite Firing Boiler side water wall smoke components of said apparatus may further comprise the steps: (1), utilize the flue gas on-line analysis device test smoke components that is installed on the side water wall, like O
2, CO
2, CO, H
2S; Simultaneously through unit operation control systematic collection unit operation parameter, like unit load, furnace outlet oxygen amount, total fuel quantity, milling systems mode, coal-supplying amount, secondary wind air distribution mode, secondary air separating air quantity, secondary air separating air door baffle opening; Also collect the fume continuous monitoring system operational factor, like desulphurization system inlet SO
2Concentration of emission, flue gas oxygen content, total exhaust gas volumn are delivered to Data Management Analysis control system with above-mentioned data through data acquisition channel; (2), the side water wall smoke components of collecting, unit operation parameter and fume continuous monitoring system operational factor are screened, filter out the parameter that to judge: i.e. O in the flue gas on-line analysis device
2, CO
2, H
2SO in S content, the fume continuous monitoring system parameter
2Furnace outlet oxygen amount in content, the unit operation control systematic parameter; (3) these parameters are carried out following judgment processing: (a), if the smoke components of flue gas on-line analysis device in O
2+ CO
2<17%, and H
2SO in S>=0.01% (percent by volume) or the fume continuous monitoring system parameter
2>=3000mg/Nm
3Or the furnace outlet oxygen amount in the unit operation control systematic parameter<1.5% (percent by volume), then Data Management Analysis control system output signal makes the valve of hot blast adding set transfer to maximum; (b), as if O in the smoke components of flue gas on-line analysis device
2+ CO
2>=19% (percent by volume), and the duration surpass 3 minutes, then Data Management Analysis control system output signal makes the valve of hot blast adding set transfer to minimum; (c), if in the smoke components of flue gas on-line analysis device: 17%≤O
2+ CO
2<19% (percent by volume), this moment, then Data Management Analysis control system output signal made the valve of hot blast adding set transfer to the adaptation aperture, changed the smoke components of water-cooling wall position.
Claims (4)
1. device of automatically regulating Opposite Firing Boiler side water wall smoke components; Comprise flue gas on-line analysis device, fume continuous monitoring system; It is characterized in that: described flue gas on-line analysis device is installed on the side water wall; Fume continuous monitoring system is installed in the porch of desulphurization system; Also comprise hot blast adding set and Data Management Analysis control system, the data output end of said flue gas on-line analysis device and fume continuous monitoring system is connected through the signal input part of data acquisition channel with Data Management Analysis control system, and the signal output part of Data Management Analysis control system is connected with the signal controlling end of hot blast adding set; The hot blast adding set is arranged on the water-cooling wall, and its air outlet is aimed at water-cooling wall.
2. the device of automatic adjusting Opposite Firing Boiler side water wall smoke components according to claim 1 is characterized in that: the signal input part of Data Management Analysis control system also is connected through the data output end of data acquisition channel with unit operation control system.
3. device according to claim 2 is regulated the method for Opposite Firing Boiler side water wall smoke components automatically, it is characterized in that: may further comprise the steps: the operational factor of unit operation control system, flue gas on-line analysis device and fume continuous monitoring system is collected by (1), described Data Management Analysis control system through data acquisition channel; (2), Data Management Analysis control system screens the parameter that receives, and filters out the parameter that need judge; (3), Data Management Analysis control system judges the parameter of screening, thereby the output control signal is given the valve of hot blast adding set, controls its valve opening and regulates smoke components.
4. the method for automatic adjusting Opposite Firing Boiler side water wall smoke components according to claim 3 is characterized in that: the parameter that need judge in the described step (2) is: the O in the flue gas on-line analysis device
2, CO
2, H
2SO in S content, the fume continuous monitoring system parameter
2Furnace outlet oxygen amount in the parameter of content, unit operation control system; Rule of judgment in the step (3) is: (a), if the smoke components of flue gas on-line analysis device in O
2+ CO
2<17% (percent by volume), and H
2SO in the parameter of S>=0.01% (percent by volume) or fume continuous monitoring system
2>=3000mg/Nm
3Or furnace outlet oxygen amount in the parameter of unit operation control system<1.5% (percent by volume), then Data Management Analysis control system output signal makes the valve of hot blast adding set transfer to maximum; (b), as if O in the smoke components of flue gas on-line analysis device
2+ CO
2>=19% (percent by volume), and the duration surpass 3 minutes, then Data Management Analysis control system output signal makes the valve of hot blast adding set transfer to minimum; (c), if in the smoke components of flue gas on-line analysis device: 17%≤O
2+ CO
2<19% (percent by volume), this moment, then Data Management Analysis control system output signal made the valve of hot blast adding set transfer to the adaptation aperture, changed the smoke components of water-cooling wall position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110133813A CN102207289B (en) | 2011-05-23 | 2011-05-23 | Device and method for regulating flue gas ingredients of side wall water cooling wall of front-rear wall hedging combustion boiler automatically |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110133813A CN102207289B (en) | 2011-05-23 | 2011-05-23 | Device and method for regulating flue gas ingredients of side wall water cooling wall of front-rear wall hedging combustion boiler automatically |
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| Publication Number | Publication Date |
|---|---|
| CN102207289A CN102207289A (en) | 2011-10-05 |
| CN102207289B true CN102207289B (en) | 2012-09-05 |
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ID=44696253
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110133813A Active CN102207289B (en) | 2011-05-23 | 2011-05-23 | Device and method for regulating flue gas ingredients of side wall water cooling wall of front-rear wall hedging combustion boiler automatically |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103423730A (en) * | 2013-07-31 | 2013-12-04 | 广东电网公司电力科学研究院 | Method for measuring adherent smoke of front-back oppose swirling combustion boiler |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102563692B (en) * | 2011-12-19 | 2014-04-23 | 西安交通大学 | Early-warning adjustment system and early-warning adjustment method for preventing detonation of large-scale power station pulverized-fuel boiler furnace |
| CN106196149B (en) * | 2016-08-03 | 2017-12-19 | 国网山东省电力公司电力科学研究院 | Boiler water wall surface oxidation atmosphere active strengthening system and method, boiler |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101398370A (en) * | 2008-10-31 | 2009-04-01 | 江苏方天电力技术有限公司 | High temperature corrosion on-line monitoring system for boiler water-cooled wall |
| CN101706110A (en) * | 2009-11-17 | 2010-05-12 | 西安交通大学 | Near-wall air device for preventing high-temperature corrosion of water-cooled wall of power station boiler |
| CN202118942U (en) * | 2011-05-23 | 2012-01-18 | 河南电力试验研究院 | Device for automatically adjusting components of smoke on water cooled wall of lateral wall of front-back-wall hedging combustion boiler |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60105824A (en) * | 1983-11-14 | 1985-06-11 | Babcock Hitachi Kk | Burning device having hightened controllability |
| US20110045422A1 (en) * | 2009-08-21 | 2011-02-24 | Alstom Technology Ltd | Optical flue gas monitor and control |
-
2011
- 2011-05-23 CN CN201110133813A patent/CN102207289B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101398370A (en) * | 2008-10-31 | 2009-04-01 | 江苏方天电力技术有限公司 | High temperature corrosion on-line monitoring system for boiler water-cooled wall |
| CN101706110A (en) * | 2009-11-17 | 2010-05-12 | 西安交通大学 | Near-wall air device for preventing high-temperature corrosion of water-cooled wall of power station boiler |
| CN202118942U (en) * | 2011-05-23 | 2012-01-18 | 河南电力试验研究院 | Device for automatically adjusting components of smoke on water cooled wall of lateral wall of front-back-wall hedging combustion boiler |
Non-Patent Citations (1)
| Title |
|---|
| JP昭60-105824A 1985.06.11 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103423730A (en) * | 2013-07-31 | 2013-12-04 | 广东电网公司电力科学研究院 | Method for measuring adherent smoke of front-back oppose swirling combustion boiler |
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|---|---|
| CN102207289A (en) | 2011-10-05 |
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Owner name: STATE GRID CORPORATION OF CHINA Effective date: 20121108 Owner name: HE'NAN ELECTRIC POWER CORPORATION, ELECTRIC POWER Free format text: FORMER OWNER: HENAN INSTITUTE OF POWER EXPERIMENT Effective date: 20121108 |
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Effective date of registration: 20121108 Address after: 450052 Songshan South Road, Henan, No. 85, No. Patentee after: HENAN ELECTRIC POWER CORPORATION ELECTRIC POWER SCIENCE Research Institute Patentee after: State Grid Corporation of China Address before: 450008 Songshan South Road, Henan, No. 85, No. Patentee before: HENAN ELECTRIC POWER Research Institute |
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Address after: 450052 Songshan, Zhengzhou, Henan District No. 27 South Road, No. 85 Patentee after: STATE GRID HENAN ELECTRIC POWER CORPORATION ELECTRIC POWER SCIENCE Research Institute Patentee after: State Grid Corporation of China Address before: 450052 Songshan South Road, Henan, No. 85, No. Patentee before: Henan Electric Power Corporation Electric Power Science Research Institute Patentee before: State Grid Corporation of China |
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Effective date of registration: 20161209 Address after: 450052 Songshan, Zhengzhou, Henan District No. 27 South Road, No. 85 Patentee after: STATE GRID HENAN ELECTRIC POWER CORPORATION ELECTRIC POWER SCIENCE Research Institute Patentee after: HENAN ENPAI HIGH-TECH GROUP Co.,Ltd. Patentee after: State Grid Corporation of China Address before: 450052 Songshan, Zhengzhou, Henan District No. 27 South Road, No. 85 Patentee before: STATE GRID HENAN ELECTRIC POWER CORPORATION ELECTRIC POWER SCIENCE Research Institute Patentee before: State Grid Corporation of China |
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Address after: 450052 No. 85 South Songshan Road, 27 District, Henan, Zhengzhou Co-patentee after: Henan jiuyu enpai Power Technology Co.,Ltd. Patentee after: STATE GRID HENAN ELECTRIC POWER CORPORATION ELECTRIC POWER SCIENCE Research Institute Co-patentee after: State Grid Corporation of China Address before: 450052 No. 85 South Songshan Road, 27 District, Henan, Zhengzhou Co-patentee before: HENAN ENPAI HIGH-TECH GROUP Co.,Ltd. Patentee before: STATE GRID HENAN ELECTRIC POWER CORPORATION ELECTRIC POWER SCIENCE Research Institute Co-patentee before: State Grid Corporation of China |