CN202101259U - Implosion-prevention flue gas system - Google Patents
Implosion-prevention flue gas system Download PDFInfo
- Publication number
- CN202101259U CN202101259U CN2011202214079U CN201120221407U CN202101259U CN 202101259 U CN202101259 U CN 202101259U CN 2011202214079 U CN2011202214079 U CN 2011202214079U CN 201120221407 U CN201120221407 U CN 201120221407U CN 202101259 U CN202101259 U CN 202101259U
- Authority
- CN
- China
- Prior art keywords
- implosion
- flue gas
- flue
- inlet
- boiler
- 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.)
- Expired - Fee Related
Links
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 51
- 239000003546 flue gas Substances 0.000 title claims abstract description 51
- 230000001052 transient effect Effects 0.000 claims description 6
- 230000005484 gravity Effects 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 abstract description 3
- 239000000428 dust Substances 0.000 abstract description 3
- 239000010959 steel Substances 0.000 abstract description 3
- 238000006477 desulfuration reaction Methods 0.000 abstract 1
- 230000023556 desulfurization Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 239000003344 environmental pollutant Substances 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- 239000000809 air pollutant Substances 0.000 description 2
- 231100001243 air pollutant Toxicity 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003500 flue dust Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000010977 unit operation Methods 0.000 description 1
Images
Landscapes
- Treating Waste Gases (AREA)
- Chimneys And Flues (AREA)
Abstract
The utility model discloses an implosion-prevention flue gas system, which includes a boiler, a flue gas denitration system, a bag type dust remover, an induced draft fan, a flue gas desulfurization system and a chimney, as well as an implosion-prevention device, wherein the implosion-prevention device is installed on a flue duct connected at the outlet of the bag type dust remover and the inlet of the induced draft fan. The implosion-prevention flue gas system has the following advantages: firstly, the implosion-prevention device arranged on a front flue duct of the induced draft fan can perform tripping operation before an implosion threat looms inside a hearth exists in a boiler, so as to reduce the negative pressure of a system, and further protect the hearth, other equipment of the flue gas system and the flue duct; and secondly, steel material consumption amount is considerably saved, and simultaneously, the boiler machine set is guaranteed to operate safely in case that the negative pressure exceeds standard.
Description
Technical field
The utility model relates to a kind of flue gas system, particularly relates to a kind of flue gas system with anti-implosion function.
Background technology
Thermal power plant is flue dust, SO
2And NO
XEtc. the main source of Air Pollutant Emission, in order to control Air Pollutant Emission, preserve the ecological environment and promote the technological progress of power industry, thermal power plant's atmosphere pollutants emission standards of country is more and more stricter, allows concentration of emission more and more lower.2011 editions " thermal power plant's atmosphere pollutants emission standardses " (hereinafter to be referred as 2011 editions " discharge standards ") that are about to issuing and implementation require smoke dust discharge concentration ≯ 30mg/Nm
3, SO
2And NO
XConcentration of emission ≯ 100mg/Nm
3, the European Union standard the strictest to the requirement and the whole world of most of areas is identical, and special area is higher than European Union's standard.In order to satisfy 2011 editions " discharge standard " requirements, the large electric power plant unit must dispose smoke dust-removing equipment, flue gas desulphurization system and denitrating system.
Employing successively along with thermal power plant's pollutant Prevention Technique; The equipment of whole flue gas system is more and more from the boiler export to the chimney, flue is more and more longer; The flue gas system crushing is increasingly high, and the problem that the air-introduced machine pressure head is higher than boiler transient state explosion-proof pressure has appearred in increasing thermal power plant.That is to say that under some operating mode, there is the risk of implosion (inhaling flat) in boiler.
If boiler furnace transient state design pressure raises along with the rising of air-introduced machine pressure head, the boiler furnace design pressure also can improve thereupon.In order to satisfy the design pressure requirement, the design of burner hearth buckstay must strengthen, and the boiler design rolled steel dosage increases, and the boiler cost improves thereupon.In sum, this area lacks the flue gas system that a kind of ability satisfies and coordinate safety and the requirement of economic two aspects.
Summary of the invention
The purpose of the utility model is to provide a kind of anti-implosion flue gas system.
The purpose of the utility model is implemented by following technical scheme; A kind of anti-implosion flue gas system; It comprises boiler, flue gas denitrification system, sack cleaner, air-introduced machine, flue gas desulphurization system and chimney; Be provided with economizer and air preheater in the said boiler, said economizer exit is connected through flue with the inlet of said flue gas denitrification system, and the outlet of said flue gas denitrification system is connected through flue with the inlet of said air preheater; The outlet of said air preheater is connected through flue with the inlet of said sack cleaner; The outlet of said sack cleaner is connected through flue with the inlet of said air-introduced machine, and the outlet of said air-introduced machine is connected through flue with the inlet of said flue gas desulphurization system, and the outlet of said flue gas desulphurization system is connected through flue with the inlet of said chimney; It also includes anti-implosion device, and said anti-implosion device is installed on the flue of inlet of the outlet that connects said sack cleaner and said air-introduced machine.
Said anti-implosion device is anti-implosion door of gravity type or the anti-implosion door of mechanical type.
Said air-introduced machine T.B point pressure head is greater than the transient state design pressure of said boiler furnace.
In the unit operation, when air-introduced machine pressure head during near the transient state design pressure of boiler furnace, anti-implosion device can be opened automatically rapidly, in time release, and makes that equipment and flue are not destroyed (inhaling flat) behind boiler body, the stove, can close automatically after releasing, and need not blowing out.
The advantage of the utility model is, (1) through anti-implosion device is set on the flue before air-introduced machine, before there was the threat of furnace implosion in boiler, the take-off of anti-implosion device elder generation had reduced system's negative pressure, protected the miscellaneous equipment and the flue of burner hearth, flue gas system; (2) through anti-implosion device is set; Needn't improve the furnace enclosure design pressure and the transient state explosion-proof pressure of boiler; The design pressure of the flue of flue gas system miscellaneous equipment also needn't improve, and it is constant that design strength is kept standardized product, compares design pressure and the design strength that has reduced boiler and flue gas system all devices and flue with " burner hearth intensity method "; Practice thrift the steel consumption amount significantly, but also guaranteed simultaneously the safe operation when negative pressure occurring and exceed standard of boiler unit.
Description of drawings
Fig. 1 is 1 one kinds of anti-implosion flue gas system flow charts of embodiment.
Fig. 2 is 2 one kinds of anti-implosion flue gas system flow charts of embodiment.
The specific embodiment
Embodiment 1:A kind of anti-implosion flue gas system; It comprises boiler 1, flue gas denitrification system 2, sack cleaner 3, air-introduced machine 5, flue gas desulphurization system 6 and chimney 7; Be provided with economizer 4 and air preheater 8 in the boiler 1, economizer 4 outlets are connected through flue with the inlet of flue gas denitrification system 2, and the outlet of flue gas denitrification system 2 is connected through flue with the inlet of air preheater 8; The outlet of air preheater 8 is connected through flue with the inlet of sack cleaner 3; The outlet of sack cleaner 3 is connected through flue with the inlet of air-introduced machine 5, and the outlet of air-introduced machine 5 is connected through flue with the inlet of flue gas desulphurization system 6, and the outlet of flue gas desulphurization system 6 is connected through flue with the inlet of chimney 7; It also includes the anti-implosion door 9 of gravity type, and the anti-implosion door 9 of gravity type is installed on the flue of inlet of the outlet that connects sack cleaner 3 and air-introduced machine 5.
Embodiment 2:A kind of anti-implosion flue gas system; It comprises boiler 1, flue gas denitrification system 2, sack cleaner 3, air-introduced machine 5, flue gas desulphurization system 6 and chimney 7; Be provided with economizer 4 and air preheater 8 in the boiler 1, economizer 4 outlets are connected through flue with the inlet of flue gas denitrification system 2, and the outlet of flue gas denitrification system 2 is connected through flue with the inlet of air preheater 8; The outlet of air preheater 8 is connected through flue with the inlet of sack cleaner 3; The outlet of sack cleaner 3 is connected through flue with the inlet of air-introduced machine 5, and the outlet of air-introduced machine 5 is connected through flue with the inlet of flue gas desulphurization system 6, and the outlet of flue gas desulphurization system 6 is connected through flue with the inlet of chimney 7; It also includes the anti-implosion door 10 of mechanical type, and the anti-implosion door 10 of mechanical type is installed on the flue of inlet of the outlet that connects sack cleaner 3 and air-introduced machine 5.
Claims (3)
1. anti-implosion flue gas system; It comprises boiler, flue gas denitrification system, sack cleaner, air-introduced machine, flue gas desulphurization system and chimney; Be provided with economizer and air preheater in the said boiler; Said economizer exit is connected through flue with the inlet of said flue gas denitrification system, and the outlet of said flue gas denitrification system is connected through flue with the inlet of said air preheater, and the outlet of said air preheater is connected through flue with the inlet of said sack cleaner; The outlet of said sack cleaner is connected through flue with the inlet of said air-introduced machine; The outlet of said air-introduced machine is connected through flue with the inlet of said flue gas desulphurization system, and the outlet of said flue gas desulphurization system is connected through flue with the inlet of said chimney, it is characterized in that; It also includes anti-implosion device, and said anti-implosion device is installed on the flue of inlet of the outlet that connects said sack cleaner and said air-introduced machine.
2. a kind of anti-implosion flue gas system according to claim 1 is characterized in that, said anti-implosion device is anti-implosion door of gravity type or the anti-implosion door of mechanical type.
3. a kind of anti-implosion flue gas system according to claim 1 is characterized in that, said air-introduced machine T.B point pressure head is greater than the transient state design pressure of said boiler furnace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202214079U CN202101259U (en) | 2011-06-28 | 2011-06-28 | Implosion-prevention flue gas system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202214079U CN202101259U (en) | 2011-06-28 | 2011-06-28 | Implosion-prevention flue gas system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202101259U true CN202101259U (en) | 2012-01-04 |
Family
ID=45387268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202214079U Expired - Fee Related CN202101259U (en) | 2011-06-28 | 2011-06-28 | Implosion-prevention flue gas system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202101259U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104141965A (en) * | 2014-07-15 | 2014-11-12 | 国家电网公司 | Desulfurization unit boiler flue implosion-proof optimal control system and method |
| CN109869339A (en) * | 2019-02-14 | 2019-06-11 | 华北电力科学研究院有限责任公司 | The anti-implosion control system of air-introduced machine gas approach and method |
-
2011
- 2011-06-28 CN CN2011202214079U patent/CN202101259U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104141965A (en) * | 2014-07-15 | 2014-11-12 | 国家电网公司 | Desulfurization unit boiler flue implosion-proof optimal control system and method |
| CN104141965B (en) * | 2014-07-15 | 2016-07-06 | 国家电网公司 | A kind of anti-implosion Optimal Control System of desulfurization unit boiler flue and method |
| CN109869339A (en) * | 2019-02-14 | 2019-06-11 | 华北电力科学研究院有限责任公司 | The anti-implosion control system of air-introduced machine gas approach and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3482124B1 (en) | Method for operating and retrofitting a steam generator system | |
| CN104566389B (en) | A kind of waste incinerator and combustion method of low nitrogen burning | |
| CN207065552U (en) | A kind of low-temperature smoke recirculation system for reducing CFBB NOx emission | |
| CN103604116A (en) | Device and method for reducing oxynitrides smoke product of circulating fluidized bed boiler | |
| CN103557529B (en) | Cracking burned waste gas heat circulation and flue gas purification system | |
| EP2289608A3 (en) | System and method for protecting a SCR catalyst from large particle ash | |
| CN202101259U (en) | Implosion-prevention flue gas system | |
| CN103697466A (en) | Circulating fluidized bed boiler with smoke recirculating bypass, and NOX discharging method | |
| CN203595119U (en) | Device capable of reducing nitric oxides in flue gas product of circulating fluidized bed boiler | |
| Kovacs et al. | BEST MANAGEMENT PRACTICES APPLIED TO PREVENT AND REDUCE CONCENTRATIONS OF DUST AND GASES RELEASED FROM POWER PLANTS. | |
| CN213132656U (en) | SCR denitration coal-fired power plant slag tap boiler waste gas processing system | |
| CN105371282A (en) | low-nitrogen combustion garbage incinerator and combustion method | |
| CN201268691Y (en) | Automatic explosion suppression apparatus of converter gas dry cleaning apparatus | |
| CN203400616U (en) | Flue gas cooling system | |
| CN202963015U (en) | Steel-making secondary high-pressure dust removal device | |
| CN103706245A (en) | Integrated sintering flue gas desulfurization/dioxin removal/dust collection equipment without electrostatic dust collector | |
| CN102563673A (en) | Gas isolating-type pre-mixing and igniting device | |
| CN102518462A (en) | Subway platform smoke exhausting method used with screen door system compatibly | |
| CN203605775U (en) | Fuel gas waste heat recovery device | |
| CN102445088A (en) | Method and device for inhibiting slagging of copper flash smelting waste heat boiler | |
| CN103353122B (en) | Industrial boiler system and method for clean combustion of carbon particles | |
| CN208187135U (en) | A kind of sintering waste heat comprehensive utilization integrated system | |
| CN206980445U (en) | A kind of multipurpose waste gas purification environmental protection equipment | |
| CN201972379U (en) | Mixed exhaust device for diesel generator | |
| CN109945214A (en) | A kind of storage tank volatilization gas processing system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: INNER MONGOLIA ELECTRIC POWER SURVEY DESIGN INSTIT Free format text: FORMER NAME: INNER MONGOLIA ELECTRICAL POWER INVESTIGATE AND DESIGN INSTITUTE |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 010020 the Inner Mongolia Autonomous Region Hohhot City Xilin Road No. 209 Patentee after: INNER MONGOLIA ELECTRIC POWER SURVEY & DESIGN INSTITUTE CO., LTD. Address before: 010020 the Inner Mongolia Autonomous Region Hohhot City Xilin Road No. 209 Patentee before: Inner Mongolia Electric Power Survey Design Institute |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120104 Termination date: 20200628 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |