CN105937758A - Biomass direct-fired fire grate boiler - Google Patents
Biomass direct-fired fire grate boiler Download PDFInfo
- Publication number
- CN105937758A CN105937758A CN201610415406.5A CN201610415406A CN105937758A CN 105937758 A CN105937758 A CN 105937758A CN 201610415406 A CN201610415406 A CN 201610415406A CN 105937758 A CN105937758 A CN 105937758A
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- CN
- China
- Prior art keywords
- end ductwork
- fire grate
- temperature
- grate boiler
- biomass direct
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
- F22D1/00—Feed-water heaters, i.e. economisers or like preheaters
- F22D1/02—Feed-water heaters, i.e. economisers or like preheaters with water tubes arranged in the boiler furnace, fire tubes, or flue ways
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/02—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
- F22B1/16—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being hot liquid or hot vapour, e.g. waste liquid, waste vapour
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
- F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
- F22B37/26—Steam-separating arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22G—SUPERHEATING OF STEAM
- F22G1/00—Steam superheating characterised by heating method
- F22G1/02—Steam superheating characterised by heating method with heat supply by hot flue gases from the furnace of the steam boiler
- F22G1/04—Steam superheating characterised by heating method with heat supply by hot flue gases from the furnace of the steam boiler by diverting flow or hot flue gases to separate superheaters operating in reheating cycle, e.g. for reheating steam between a high-pressure turbine stage and an intermediate turbine stage
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Solid-Fuel Combustion (AREA)
Abstract
The invention discloses a biomass direct-fired fire grate boiler. The fire grate boiler comprises a fire grate, a furnace hearth and a rear flue, and is provided with a water supply system, an overheating system and a reheating system. The reheating system comprises a platen type reheater, a low-temperature reheater and a high-temperature reheater, wherein the platen type reheater is arranged in the furnace hearth, and the low-temperature reheater and the high-temperature reheater are arranged in the rear flue. The overheating system comprises a platen type overheater arranged in the furnace hearth, a platen type overheater arranged in a front flue, a low-temperature overheater and a high-temperature overheater, wherein the low-temperature overheater and the high-temperature overheater are arranged in the rear flue. The biomass direct-fired fire grate boiler fills the blank that a biomass direct-fired fire grate boiler is not provided with a steam reheating system; the fuel adaptability range is wide; the heat efficiency of a power station can be improved, and fuel consumption of the power station is reduced; and the last few stages of blades of a steam turbine are effectively protected against excessive erosion.
Description
[technical field]
The present invention relates to a kind of biomass direct-fired fire grate boiler.
[background field]
Biomass direct-fired fire grate boiler, is the steam boiler with special combustion biomass fuel as raw material.Biomass direct-fired
The feature of furnace grate has: run environmental protection, saves fuel, autofeed, slags tap, and aerator air-introduced machine variable frequency adjustment, boiler is complete
Automatically running, can automatically adjust fuel quantity according to load variations, steam output is stable etc..
The technology path that current biomass direct-fired fire grate boiler uses is medium temperature and medium pressure, middle temperature sub-high pressure and High Temperature High Pressure
Steam parameter, and all there is no steam reheat system.
[summary of the invention]
The present invention is in boiler system with the difference of the water-cooling vibration furnace grate boiler of the most existing firing biomass fuel
System adds steam reheat system.
The object of the present invention is achieved like this:
A kind of biomass direct-fired fire grate boiler, it is characterised in that furnace grate includes fire grate, burner hearth and back-end ductwork, described
Furnace grate be provided with water supply system, superheating system and reheat system.
A kind of biomass direct-fired fire grate boiler described above, it is characterised in that described reheat system includes being arranged on burner hearth
Screen formula reheater, and be arranged on low-temperature reheater and the high temperature reheater of back-end ductwork.
A kind of biomass direct-fired fire grate boiler described above, it is characterised in that described high temperature reheater is arranged on low temperature again
The flue upstream of hot device.
A kind of biomass direct-fired fire grate boiler described above, it is characterised in that described superheating system includes being arranged on burner hearth
Pendant superheater, be arranged on the pendant superheater of anterior flue, and be arranged on low temperature superheater and the high temperature mistake of back-end ductwork
Hot device.
A kind of biomass direct-fired fire grate boiler described above, it is characterised in that described high temperature superheater is arranged on low temperature mistake
The flue upstream of hot device.
A kind of biomass direct-fired fire grate boiler described above, it is characterised in that described water supply system includes feed pump, adds
The tube bank of hot-air, is arranged on low-level (stack-gas) economizer and the high-temperature economizer of back-end ductwork, is built-in with the drum of water separator,
And burner hearth evaporating heating surface.
A kind of biomass direct-fired fire grate boiler described above, it is characterised in that described high-temperature economizer is arranged on low temperature and saves
The flue upstream of coal device.
A kind of biomass direct-fired fire grate boiler described above, it is characterised in that also set between described back-end ductwork and burner hearth
There is anterior flue；Anterior flue is additionally provided with flue pendant superheater；Described back-end ductwork is " n " word shape, described afterbody
Flue includes the first back-end ductwork and the second back-end ductwork；The afterbody of the first back-end ductwork and the front portion of the second back-end ductwork are passed through
Turning flue connects.
A kind of biomass direct-fired fire grate boiler described above, it is characterised in that described low-temperature reheater and high temperature reheater
It is arranged on the first back-end ductwork；Described high temperature superheater is arranged on the first back-end ductwork；Low temperature superheater, described low temperature saves
Coal device and high-temperature economizer are arranged in the second back-end ductwork.
Beneficial effects of the present invention has:
1, compensate for biomass direct-fired fire grate boiler and there is no the blank of steam reheat system；
2, owing to using furnace grate, fuel tolerance is wide；
3, owing to adding reheat system, the thermal efficiency in power station is improved, thus has saved the fuel consumption of power plant
Amount；
4, owing to there being reheat system, the last several grade blades being also effectively protected steam turbine will not the erosion of transition.
[accompanying drawing explanation]
Fig. 1 is the structural representation of the present invention.
[detailed description of the invention]
A kind of biomass direct-fired fire grate boiler, this furnace grate includes fire grate 1, burner hearth 2 and back-end ductwork 3, this fire grate pot
Stove is additionally provided with water supply system 4, superheating system 5 and reheat system 6.The reheat system 6 of the present invention includes the screen being arranged on burner hearth 2
Formula reheater 61, and it is arranged on low-temperature reheater 62 and the high temperature reheater 63 of back-end ductwork 3.Wherein high temperature reheater 63 is arranged
The upstream of low-temperature reheater 62 in back-end ductwork 3.
The superheating system 5 of the present invention includes the pendant superheater 53 being arranged on burner hearth 2, and is arranged on the low temperature of back-end ductwork
Superheater 51 and high temperature superheater 52.The upstream of low temperature superheater 51 in wherein high temperature superheater 52 is arranged on back-end ductwork 3.
The water supply system 4 of the present invention includes feed pump 41, and the low-level (stack-gas) economizer 42 and the high temperature that are arranged on back-end ductwork 3 save coal
Device 43, is built-in with the drum 44 of water separator, and burner hearth evaporating heating surface 45.Wherein high-temperature economizer 43 is arranged on tail
The upstream of low-level (stack-gas) economizer 42 in portion's flue 3.
Anterior flue 30 it is additionally provided with between described back-end ductwork 3 and the burner hearth 2 of the present invention；Anterior flue 30 is additionally provided with cigarette
Road pendant superheater 54；Back-end ductwork 3 is " n " word shape, and back-end ductwork 3 includes the first back-end ductwork 31 and the second back-end ductwork
32；The afterbody of the first back-end ductwork 31 and the front portion of the second back-end ductwork 32 are connected by turning flue 33.Described low temperature is again
Hot device 62 and high temperature reheater 63 are arranged on the first back-end ductwork 31；Described low temperature superheater 51 is arranged on the second back-end ductwork
32, described high temperature superheater 53 is arranged on the first back-end ductwork 31；Described low-level (stack-gas) economizer 42 and high-temperature economizer 43 set
Put in the second back-end ductwork 32.
The operation principle of the present invention is: the feed pump 41 of boiler feeds water, and water, through low-level (stack-gas) economizer 42, is then passed through high temperature
Economizer 43 enters drum 44, and the water separator in drum 44 carries out steam-water separation, the saturated vapor drawn from drum 44
Initially enter low temperature superheater 51, subsequently into high temperature superheater 52, the pendant superheater 53 in burner hearth 2, enter cigarette afterwards
Road pendant superheater 54, enters back into the high pressure cylinder of steam turbine, initially enters from the gas of the high pressure cylinder discharge of steam turbine and is arranged in
The screen formula reheater 61 on burner hearth 2 top, is then passed through entering in steam turbine after low-temperature reheater 62 arrives high temperature reheater 63
Cylinder pressure.
The furnace grate that the present invention is, main steam condition scope includes High Temperature High Pressure, superhigh-pressure high-temp, subcritical and super face
Boundary's parameter (main steam pressure scope 8.8～26.0MPa).
Claims (9)
1. a biomass direct-fired fire grate boiler, it is characterised in that it includes fire grate (1), burner hearth (2) and back-end ductwork (3), its
It is additionally provided with water supply system (4), superheating system (5) and reheat system (6).
A kind of biomass direct-fired fire grate boiler, it is characterised in that described reheat system (6) includes
It is arranged on screen formula reheater (61) of burner hearth (2), and is arranged on low-temperature reheater (62) and the high temperature reheater of back-end ductwork (3)
(63)。
A kind of biomass direct-fired fire grate boiler, it is characterised in that described high temperature reheater (63)
It is arranged on the upstream of back-end ductwork (3) interior low-temperature reheater (62).
A kind of biomass direct-fired fire grate boiler, it is characterised in that described superheating system (5) includes
It is arranged on the pendant superheater (53) of burner hearth (2), and is arranged on low temperature superheater (51) and the high temperature superheater of back-end ductwork
(52)。
A kind of biomass direct-fired fire grate boiler, it is characterised in that described high temperature superheater (52)
It is arranged on the upstream of back-end ductwork (3) interior low temperature superheater (51).
A kind of biomass direct-fired fire grate boiler, it is characterised in that described water supply system (4) includes
Feed pump (41), is arranged on low-level (stack-gas) economizer (42) and the high-temperature economizer (43) of back-end ductwork (3), is built-in with steam-water separation dress
The drum (44) put, and burner hearth evaporating heating surface (45).
A kind of biomass direct-fired fire grate boiler, it is characterised in that described high-temperature economizer (43)
It is arranged on the upstream of back-end ductwork (3) interior low-level (stack-gas) economizer (42).
8. according to a kind of biomass direct-fired fire grate boiler described in claim 2 or 4 or 6, it is characterised in that described back-end ductwork
(3) anterior flue (30) and it is additionally provided with between burner hearth (2)；Anterior flue (30) is additionally provided with flue pendant superheater (54)；Described
Back-end ductwork (3) be " n " word shape, described back-end ductwork (3) includes the first back-end ductwork (31) and the second back-end ductwork
(32)；The afterbody of the first back-end ductwork (31) and the front portion of the second back-end ductwork (32) are connected by turning flue (33).
A kind of biomass direct-fired fire grate boiler, it is characterised in that described low-temperature reheater (62)
It is arranged on the first back-end ductwork (31) with high temperature reheater (63)；Described high temperature superheater (52) is arranged on the first back-end ductwork
(31)；Low temperature superheater (51), described low-level (stack-gas) economizer (42) and high-temperature economizer (43) are arranged on the second back-end ductwork
(32) in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610415406.5A CN105937758A (en) | 2016-06-14 | 2016-06-14 | Biomass direct-fired fire grate boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610415406.5A CN105937758A (en) | 2016-06-14 | 2016-06-14 | Biomass direct-fired fire grate boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105937758A true CN105937758A (en) | 2016-09-14 |
Family
ID=57151790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610415406.5A Pending CN105937758A (en) | 2016-06-14 | 2016-06-14 | Biomass direct-fired fire grate boiler |
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| Country | Link |
|---|---|
| CN (1) | CN105937758A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106594698A (en) * | 2016-12-30 | 2017-04-26 | 江苏东九重工股份有限公司 | Biomass direct-fired boiler |
| CN107559804A (en) * | 2017-09-19 | 2018-01-09 | 深圳市能源环保有限公司 | A kind of garbage burning boiler superheater system |
| CN108036298A (en) * | 2017-12-21 | 2018-05-15 | 深圳市能源环保有限公司 | A kind of garbage burning boiler steam reheat system |
| CN109404879A (en) * | 2018-11-23 | 2019-03-01 | 北京米能科技有限公司 | A kind of small-sized DC boiler and its start and run water round-robin method |
| WO2019119384A1 (en) * | 2017-12-21 | 2019-06-27 | 深圳市能源环保有限公司 | Steam reheating system for rubbish incineration furnace |
| CN112856365A (en) * | 2021-01-11 | 2021-05-28 | 北京德普新源生态技术有限公司 | Biomass direct-fired water-cooling vibrating grate high-temperature ultrahigh-pressure reheating boiler |
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| US20080289782A1 (en) * | 2007-04-23 | 2008-11-27 | Andritz Oy | recovery process and system for a pulp mill |
| CN101721904A (en) * | 2010-01-21 | 2010-06-09 | 山东大学 | Composite denitration method by biomass direct reburning and selective non-catalytic reduction |
| CN203794888U (en) * | 2013-12-29 | 2014-08-27 | 肖英佳 | Biomass renewable energy environment-friendly ecological intelligent power generator |
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| CN205746784U (en) * | 2016-06-14 | 2016-11-30 | 廖洁芬 | A kind of biomass direct-fired fire grate boiler |
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2016
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Patent Citations (5)
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| US20080289782A1 (en) * | 2007-04-23 | 2008-11-27 | Andritz Oy | recovery process and system for a pulp mill |
| CN101721904A (en) * | 2010-01-21 | 2010-06-09 | 山东大学 | Composite denitration method by biomass direct reburning and selective non-catalytic reduction |
| CN203794888U (en) * | 2013-12-29 | 2014-08-27 | 肖英佳 | Biomass renewable energy environment-friendly ecological intelligent power generator |
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Non-Patent Citations (1)
| Title |
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| 文锋等: "《现代发电厂概论》", 28 February 2014 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106594698A (en) * | 2016-12-30 | 2017-04-26 | 江苏东九重工股份有限公司 | Biomass direct-fired boiler |
| CN107559804A (en) * | 2017-09-19 | 2018-01-09 | 深圳市能源环保有限公司 | A kind of garbage burning boiler superheater system |
| CN108036298A (en) * | 2017-12-21 | 2018-05-15 | 深圳市能源环保有限公司 | A kind of garbage burning boiler steam reheat system |
| WO2019119384A1 (en) * | 2017-12-21 | 2019-06-27 | 深圳市能源环保有限公司 | Steam reheating system for rubbish incineration furnace |
| CN109404879A (en) * | 2018-11-23 | 2019-03-01 | 北京米能科技有限公司 | A kind of small-sized DC boiler and its start and run water round-robin method |
| CN112856365A (en) * | 2021-01-11 | 2021-05-28 | 北京德普新源生态技术有限公司 | Biomass direct-fired water-cooling vibrating grate high-temperature ultrahigh-pressure reheating boiler |
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Application publication date: 20160914 |