CN205746784U - A kind of biomass direct-fired fire grate boiler - Google Patents
A kind of biomass direct-fired fire grate boiler Download PDFInfo
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- CN205746784U CN205746784U CN201620571923.7U CN201620571923U CN205746784U CN 205746784 U CN205746784 U CN 205746784U CN 201620571923 U CN201620571923 U CN 201620571923U CN 205746784 U CN205746784 U CN 205746784U
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- end ductwork
- fire grate
- biomass direct
- grate boiler
- superheater
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Abstract
The utility model discloses a kind of biomass direct-fired fire grate boiler, it includes fire grate, burner hearth and back-end ductwork, and it is additionally provided with water supply system, superheating system and reheat system.Reheat system includes the screen formula reheater being arranged on burner hearth, and is arranged on low-temperature reheater and the high temperature reheater of back-end ductwork.Superheating system includes the pendant superheater being arranged on burner hearth, is arranged on the pendant superheater of anterior flue, and is arranged on low temperature superheater and the high temperature superheater of back-end ductwork.This utility model compensate for biomass direct-fired fire grate boiler does not has the blank of steam reheat system；Fuel tolerance is wide；The thermal efficiency that can make power station is improved, thus has saved the Fuel Consumption of power plant；The last several grade blades being also effectively protected steam turbine will not the erosion of transition.
Description
[technical field]
This utility model 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]
This utility model is at pot with the difference of the water-cooling vibration furnace grate boiler of the most existing firing biomass fuel
Furnace system adds steam reheat system.
The purpose of this utility model is achieved in that
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.
The beneficial effects of the utility model have:
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 structural representation of the present utility model.
[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.Reheat system 6 of the present utility model includes being arranged on burner hearth 2
Screen formula reheater 61, and be arranged on low-temperature reheater 62 and the high temperature reheater 63 of back-end ductwork 3.Wherein high temperature reheater 63
It is arranged on the upstream of low-temperature reheater 62 in back-end ductwork 3.
Superheating system 5 of the present utility model includes the pendant superheater 53 being arranged on burner hearth 2, and is arranged on back-end ductwork
Low temperature superheater 51 and high temperature superheater 52.In wherein high temperature superheater 52 is arranged on back-end ductwork 3, low temperature superheater 51 is upper
Trip.
Water supply system 4 of the present utility model includes feed pump 41, is arranged on low-level (stack-gas) economizer 42 and the high temperature of back-end ductwork 3
Economizer 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
The upstream of low-level (stack-gas) economizer 42 in back-end ductwork 3.
Anterior flue 30 it is additionally provided with between back-end ductwork 3 and burner hearth 2 described in of the present utility model；Anterior flue 30 also sets
There is flue 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 afterbody
Flue 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 is low
Temperature reheater 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 afterbody
Flue 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 are arranged in the second back-end ductwork 32.
Operation principle of the present utility model 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, from drum 44 draw saturated
Steam initially enters low temperature superheater 51, subsequently into high temperature superheater 52, and the pendant superheater 53 in burner hearth 2, laggard
Entering flue pendant superheater 54, enter back into the high pressure cylinder of steam turbine, the gas discharged from the high pressure cylinder of steam turbine initially enters cloth
Put the screen formula reheater 61 on burner hearth 2 top, be then passed through entering steam turbine after low-temperature reheater 62 arrives high temperature reheater 63
Intermediate pressure cylinder.
The furnace grate that this utility model is, main steam condition scope include High Temperature High Pressure, superhigh-pressure high-temp, subcritical and
Supercritical 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 |
|---|---|---|---|
| CN201620571923.7U CN205746784U (en) | 2016-06-14 | 2016-06-14 | A kind of biomass direct-fired fire grate boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620571923.7U CN205746784U (en) | 2016-06-14 | 2016-06-14 | A kind of biomass direct-fired fire grate boiler |
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| Publication Number | Publication Date |
|---|---|
| CN205746784U true CN205746784U (en) | 2016-11-30 |
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ID=57385190
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620571923.7U Active CN205746784U (en) | 2016-06-14 | 2016-06-14 | A kind of biomass direct-fired fire grate boiler |
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| CN (1) | CN205746784U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105937758A (en) * | 2016-06-14 | 2016-09-14 | 廖洁芬 | Biomass direct-fired fire grate boiler |
-
2016
- 2016-06-14 CN CN201620571923.7U patent/CN205746784U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105937758A (en) * | 2016-06-14 | 2016-09-14 | 廖洁芬 | Biomass direct-fired fire grate boiler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220117 Address after: 528400 No. 42, South Industrial Avenue, Xiaolan Town, Zhongshan City, Guangdong Province Patentee after: GUANGDONG CHANT Group Inc. Address before: 528400 Taoyuan road dongjingting a303, shiqidong District, Zhongshan City, Guangdong Province Patentee before: Liao Jiefen |