CN207514899U - A kind of super-pressure reheat vapor cycle fluidized-bed combustion boiler of burning-used biologic mass fuel - Google Patents
A kind of super-pressure reheat vapor cycle fluidized-bed combustion boiler of burning-used biologic mass fuel Download PDFInfo
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- CN207514899U CN207514899U CN201721347321.4U CN201721347321U CN207514899U CN 207514899 U CN207514899 U CN 207514899U CN 201721347321 U CN201721347321 U CN 201721347321U CN 207514899 U CN207514899 U CN 207514899U
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Abstract
The utility model is related to a kind of fluidized-bed combustion boiler, the super-pressure reheat vapor cycle fluidized-bed combustion boiler of specifically a kind of burning-used biologic mass fuel belongs to fluidized-bed combustion boiler technical field.It includes drum, burner hearth, water-cooling screen, crosses heat shielding, vaporphase cooling separator, high temperature section heat shielding, low-temperature zone reheater, low temperature superheater, medium temperature overheater, economizer and air preheater again, the smoke outlet of burner hearth is sequentially connected water-cooling screen along flue gas flow direction direction, crosses heat shielding, vaporphase cooling separator, high temperature section heat shielding, low-temperature zone reheater, low temperature superheater, medium temperature overheater, economizer and air preheater again, burner hearth front wall lower part is equipped with combustion chamber, and material-returning device is connected at the gas outlet of vaporphase cooling separator lower part.The utility model can use soft stalk and hard stalk simultaneously, compressed air be sprayed at the cold separator lower part variable cross-section of vapour to prevent particle from accumulating here, therefore it can use soft stalk and hard stalk simultaneously, and returning charge is smooth.
Description
Technical field
The utility model is related to a kind of fluidized-bed combustion boiler, the super-pressure reheating of specifically a kind of burning-used biologic mass fuel
Circulating fluidized bed boiler belongs to fluidized-bed combustion boiler technical field.
Background technology
Biomass fuel (rice straw, straw, cornstalk, Cotton Stalk, tree branches etc.) is the waste of agricultural production, is allowed to
It is burned in field and not only wastes valuable resource, also pollute atmospheric environment.Biomass fuel is regenerative resource, is made full use of
Biomass fuel power generation by waste combustion has energy saving, antipollution social benefit.
At present, the circulating fluidized bed boiler generally existing of domestic burning-used biologic mass fuel cannot take into account simultaneously soft stalk and
The problems such as hard stalk, returning charge be not smooth, undercapacity, economic benefit are low.
Invention content
In place of the purpose of this utility model is to overcome above-mentioned deficiency, so as to provide a kind of superelevation of burning-used biologic mass fuel
Reheat vapor cycle fluidized-bed combustion boiler is pressed, soft stalk and hard stalk can be used simultaneously, and returning charge is smooth, and with very high defeated
Go out thermal energy.
According to technical solution provided by the utility model, a kind of super-pressure reheat vapor cycle fluid bed of burning-used biologic mass fuel
Boiler includes drum, burner hearth, water-cooling screen, crosses heat shielding, vaporphase cooling separator, high temperature section heat shielding, low-temperature zone reheater, low temperature again
Superheater, medium temperature overheater, economizer and air preheater, it is characterized in that：Upper furnace is equipped with drum, the exhanst gas outlet of burner hearth
End is sequentially connected that water-cooling screen, crossing heat shielding, vaporphase cooling separator, high temperature section, heat shielding, low-temperature zone be again again along flue gas flow direction direction
Hot device, low temperature superheater, medium temperature overheater, economizer and air preheater, burner hearth front wall lower part are equipped with combustion chamber；The cold whirlwind of vapour
Material-returning device, material-returning device and combustion chamber are connected at the gas outlet of separator lower part；The water outlet of economizer goes out by first
Water pipe connects the water inlet of drum, and the water outlet of drum connects the water inlet of water-cooling screen and burner hearth membrane wall by down-comer respectively
Mouthful, water-cooling screen connects drum with the water outlet of burner hearth membrane wall by the second outlet pipe；
The outlet side of drum connects vaporphase cooling separator inlet end, vaporphase cooling separator outlet by the first air outlet pipe
End connects enclosure wall superheater inlet end by the second air outlet pipe, and enclosure wall superheater outlet side connects low temperature mistake by third air outlet pipe
Hot device, low temperature superheater outlet side connection medium temperature overheater inlet end, medium temperature overheater outlet side is connected by the 4th air outlet pipe
Heat shielding low temperature group inlet end is crossed, heat shielding low temperature group outlet side is crossed and heat shielding high temperature group inlet end was connected by connecting tube, cross heat shielding
High temperature group outlet side connects super-heater exit case；Low-temperature zone reheater outlet side connects high temperature section reheating by the 5th air outlet pipe
Screen, high temperature section reheating screen outlet side connection reheater outlet header.
Further, air preheater is equipped with smoke outlet.
Further, combustor side is equipped with feed inlet, connects screw(-type) feeder at feed inlet, bottom of combustion chamber is equipped with out
Cinder notch, residue outlet is connected at slag notch, and combustion chamber lower outside connects an air-intake device, combustion chamber lower part front-back wall connection two
Secondary air-intake device.
Further, variable cross-section section is equipped in the middle part of vaporphase cooling separator, variable cross-section section is equipped with compressed air spout.
Further, level-one direct-contact desuperheater is connected on enclosure wall superheater outlet side.
Further, two level direct-contact desuperheater is equipped between low temperature superheater and medium temperature overheater.
Further, it crosses heat shielding low temperature group outlet side and three-level direct-contact desuperheater one end, three-level water spray is connected by connecting tube
The attemperator other end connected heat shielding high temperature group outlet side.
Further, high temperature section reheating screen outlet side connection level Four direct-contact desuperheater.
Compared with the prior art the utility model has the following advantages：
The utility model is simple in structure, compact, reasonable, can use soft stalk and hard stalk, soft stalk simultaneously
Or/and hard stalk is delivered to the combustion chamber inside burner hearth by screw(-type) feeder, generating high-temperature flue gas after fuel combustion will be hot
Amount is transmitted to the membrane wall of burner hearth, water-cooling screen, crosses heat shielding, vaporphase cooling separator, high temperature section heat shielding, low-temperature zone reheating again successively
The high-temperature flue gas generated after the heating surfaces such as device, low temperature superheater, medium temperature overheater, economizer, wherein fuel combustion is in the cold rotation of vapour
Wind separator generates separation, and tiny particle enters heating surface thereafter with flue gas, and larger particle is separated, by returning
Expect that device is sent into the combustion chamber of burner hearth, form cycle, compressed air is sprayed at the cold separator lower part variable cross-section of vapour to prevent
Grain is accumulated here, therefore it can use soft stalk and hard stalk simultaneously, and returning charge is smooth.
Description of the drawings
Fig. 1 is the utility model front view.
Reference sign：1- drums, 2- burner hearths, 3- water-cooling screens, 4- cross heat shielding, 5- vaporphase cooling separators, 6- high temperature
Section heat shielding, 7- low-temperature zones reheater, 8- low temperature superheaters, 9- medium temperature overheaters, 10- economizers, 11- air preheaters, 12- again
Smoke outlet, 13- screw(-type) feeders, 14- combustion chambers, 15- residue outlets, air-intake device of 16-, 17- compressed airs spout, 18-
Material-returning device, the first outlet pipes of 19-, 20- down-comers, 21- burner hearths membrane wall, the second outlet pipes of 22-, the first air outlet pipes of 23-,
The second air outlet pipes of 24-, 25- enclosure wall superheaters, 26- thirds air outlet pipe, the 4th air outlet pipes of 27-, 28- super-heater exit cases, 29-
5th air outlet pipe, 30- secondary airs device, 31- level-ones direct-contact desuperheater, 32- two levels direct-contact desuperheater, 33- three-levels water spray subtract
Warm device, 34- connecting tubes, 35- level Four direct-contact desuperheater, 36- reheater outlet headers.
Specific embodiment
The utility model will be further described with reference to the embodiment in attached drawing below：
As shown in Figure 1, the utility model mainly includes drum 1, burner hearth 2, water-cooling screen 3, crosses heat shielding 4, the cold cyclonic separation of vapour
Device 5, high temperature section reheating screen 6, low-temperature zone reheater 7, low temperature superheater 8, medium temperature overheater 9, economizer 10 and air preheater
11。
2 top of burner hearth is equipped with drum 1, the smoke outlet of burner hearth 2 along flue gas flow direction direction be sequentially connected water-cooling screen 3,
Cross heat shielding 4, vaporphase cooling separator 5, high temperature section reheating screen 6, low-temperature zone reheater 7, low temperature superheater 8, medium temperature overheater 9,
Economizer 10 and air preheater 11, air preheater 11 are equipped with smoke outlet 12.
2 front wall lower part of burner hearth is equipped with combustion chamber 14, and 14 side of combustion chamber is equipped with feed inlet, screw feeder is connected at feed inlet
Machine 13, biomass fuel enter combustion chambers burn by screw(-type) feeder 13.14 bottom of combustion chamber is equipped with slag notch, at slag notch
Connect residue outlet 15.Combustion chamber 14 lower outside connects an air-intake device 16,14 lower part front-back wall connection of combustion chamber it is secondary into
Wind apparatus 30.
Material-returning device 18 is connected at 5 lower part gas outlet of vaporphase cooling separator, material-returning device 18 is connected with combustion chamber 14.Vapour
Cold 5 middle part of cyclone separator is equipped with variable cross-section section, and variable cross-section section is equipped with compressed air spout 17.
Boiler feedwater enters the water inlet of economizer 10, and the water outlet of economizer 10 connects drum by the first outlet pipe 19
1 water inlet, the water outlet of drum 1 connect the water inlet of water-cooling screen 3 and burner hearth membrane wall 21, water cooling by down-comer 20 respectively
The water outlet of screen 3 and burner hearth membrane wall 21 connects drum 1 by the second outlet pipe 22.
The outlet side of drum 1 connects 5 inlet end of vaporphase cooling separator, vaporphase cooling separator by the first air outlet pipe 23
5 outlet sides connect 25 inlet end of enclosure wall superheater by the second air outlet pipe 24, and 25 outlet side of enclosure wall superheater passes through third outlet
Pipe 26 connects low temperature superheater 8,8 outlet side of low temperature superheater connection, 9 inlet end of medium temperature overheater, 9 outlet side of medium temperature overheater
4 low temperature group inlet end of heat shielding was connected by the 4th air outlet pipe 27,4 low temperature group outlet side of heat shielding is crossed and was connected by connecting tube 34
4 high temperature group inlet end of heat shielding crosses 4 high temperature group outlet side of heat shielding connection super-heater exit case 28.Saturated vapor in drum 1 leads to
It crosses the first air outlet pipe 23 to enter in vaporphase cooling separator 5, then in turn through enclosure wall superheater 25, low temperature superheater 8, medium temperature
Superheater 9 is crossed in heat shielding 4 and super-heater exit case 28.
Cold reheat vapour from steam turbine enters the input end of low-temperature zone reheater 7, and 7 outlet side of low-temperature zone reheater leads to
Cross the 5th air outlet pipe 29 connection high temperature section reheating screen 6,6 outlet side of high temperature section reheating screen connection reheater outlet header 39.
Level-one direct-contact desuperheater 31, low temperature superheater 8 and medium temperature overheater 9 are connected on 25 outlet side of enclosure wall superheater
Between be equipped with two level direct-contact desuperheater 32,
It crosses 4 low temperature group outlet side of heat shielding and 33 one end of three-level direct-contact desuperheater, three-level spray desuperheating is connected by connecting tube 34
33 other end of device connected 4 high temperature group outlet side of heat shielding.
6 outlet side of high temperature section reheating screen connection level Four direct-contact desuperheater 35.
The course of work of the utility model is：Boiler feedwater is entered by economizer 10, and drum 1 is entered after by flue gas,
Stove water in drum 1 respectively enters water-cooling screen 3 and burner hearth membrane wall 21 through down-comer 20, in water-cooling screen 3 and burner hearth membrane wall 21
Stove water is entered drum 1 after flue gas as steam water interface, is divided steam water interface by water separator in drum 1
Into saturated vapor and the stove water of saturation, stove water enters down-comer 20.Saturated vapor introduces vapour cold whirlwind point by the first air outlet pipe 23
From device 5, it is heated as superheated steam in the saturated vapor process of vaporphase cooling separator 5 and enclosure wall superheater is introduced by connecting tube
Low temperature superheater 8 is introduced by third air outlet pipe 26 after 31 desuperheat of level-one direct-contact desuperheater after 25 further heating, then successively
Into two level direct-contact desuperheater 32, medium temperature overheater 9 and pass through the 4th air outlet pipe 27 be connected to 4 low temperature group of heat shielding heating it is laggard
Enter three-level direct-contact desuperheater 33 and pass through connecting tube 34 be connected to 4 high temperature group of heat shielding further heating reach boiler nominal parameter
Superheated steam overheat vapor outlet header 28 introduced by connecting tube export boiler.
Cold reheat vapour enters low-temperature zone reheater 7, and level Four direct-contact desuperheater 35 is entered after by flue gas, passes through connection
Pipe is connected to high temperature section reheating screen 6, and the reheated steam that further heating reaches boiler nominal parameter enters reheating vapor outlet header
39 output boilers.
The combustion chamber 14 of 2 lower part of burner hearth is sent by screw(-type) feeder 13 through broken biomass fuel, is produced after fuel combustion
Heat is transmitted to burner hearth membrane wall 21, water-cooling screen 3, crosses heat shielding 4, vaporphase cooling separator 5, high temperature section again by raw high-temperature flue gas successively
Heat shielding 6, low-temperature zone reheater 7, low temperature superheater 8, medium temperature overheater 9, economizer 10, air preheater 11, the cigarette after cooling
Gas discharges boiler from smoke outlet 12.
Clinker after biomass fuel burns in the combustion chamber of burner hearth 2 14 discharges boiler by residue outlet 15.Cold air is by sky
Air preheater 11 enters, and hot-air is sent into burner hearth 2 through a wind apparatus 16 and overfire air device 30 respectively after by flue gas
Combustion chamber 14.
The high-temperature flue gas generated after biomass fuel combustion vaporphase cooling separator 5 generate separation, tiny particle with
Flue gas enters heating surface thereafter, and larger particle is separated, and 14 shape of combustion chamber of burner hearth 2 is sent by material-returning device 18
Into cycle, compressed air 17 is sprayed at 5 lower part variable cross-section of vaporphase cooling separator to prevent particle from accumulating here.
Claims (8)
1. a kind of super-pressure reheat vapor cycle fluidized-bed combustion boiler of burning-used biologic mass fuel, including drum（1）, burner hearth（2）, water-cooling screen
（3）, cross heat shielding（4）, vaporphase cooling separator（5）, high temperature section heat shielding again（6）, low-temperature zone reheater（7）, low temperature superheater
（8）, medium temperature overheater（9）, economizer（10）And air preheater（11）, it is characterized in that：Burner hearth（2）Top is equipped with drum（1）,
Burner hearth（2）Smoke outlet be sequentially connected water-cooling screen along flue gas flow direction direction（3）, cross heat shielding（4）, vaporphase cooling separator
（5）, high temperature section heat shielding again（6）, low-temperature zone reheater（7）, low temperature superheater（8）, medium temperature overheater（9）, economizer（10）With
Air preheater（11）, burner hearth（2）Front wall lower part is equipped with combustion chamber（14）；Vaporphase cooling separator（5）Connect at the gas outlet of lower part
Connect material-returning device（18）, material-returning device（18）With combustion chamber（14）Connection；Economizer（10）Water outlet pass through the first outlet pipe
（19）Connect drum（1）Water inlet, drum（1）Water outlet pass through down-comer（20）Water-cooling screen is connected respectively（3）And burner hearth
Membrane wall（21）Water inlet, water-cooling screen（3）With burner hearth membrane wall（21）Water outlet pass through the second outlet pipe（22）Connect pot
Cylinder（1）；
Drum（1）Outlet side pass through the first air outlet pipe（23）Connect vaporphase cooling separator（5）Inlet end, the cold cyclonic separation of vapour
Device（5）Outlet side passes through the second air outlet pipe（24）Connect enclosure wall superheater（25）Inlet end, enclosure wall superheater（25）Outlet side leads to
Cross third air outlet pipe（26）Connect low temperature superheater（8）, low temperature superheater（8）Outlet side connects medium temperature overheater（9）Inlet end,
Medium temperature overheater（9）Outlet side passes through the 4th air outlet pipe（27）Connected heat shielding（4）Low temperature group inlet end crosses heat shielding（4）Low temperature
Group outlet side passes through connecting tube（34）Connected heat shielding（4）High temperature group inlet end crosses heat shielding（4）High temperature group outlet side connection overheat
Device outlet header（28）；Low-temperature zone reheater（7）Outlet side passes through the 5th air outlet pipe（29）Connect high temperature section heat shielding again（6）, it is high
Temperature section heat shielding again（6）Outlet side connects reheater outlet header（39）.
2. a kind of super-pressure reheat vapor cycle fluidized-bed combustion boiler of burning-used biologic mass fuel as described in claim 1, it is characterized in that：
The air preheater（11）It is equipped with smoke outlet（12）.
3. a kind of super-pressure reheat vapor cycle fluidized-bed combustion boiler of burning-used biologic mass fuel as described in claim 1, it is characterized in that：
The combustion chamber（14）Side is equipped with feed inlet, and screw(-type) feeder is connected at feed inlet（13）, combustion chamber（14）Bottom is equipped with out
Cinder notch connects residue outlet at slag notch（15）, combustion chamber（14）Lower outside connects an air-intake device（16）, combustion chamber（14）
Lower part front-back wall connection secondary air device（30）.
4. a kind of super-pressure reheat vapor cycle fluidized-bed combustion boiler of burning-used biologic mass fuel as described in claim 1, it is characterized in that：
The vaporphase cooling separator（5）Middle part is equipped with variable cross-section section, and variable cross-section section is equipped with compressed air spout（17）.
5. a kind of super-pressure reheat vapor cycle fluidized-bed combustion boiler of burning-used biologic mass fuel as described in claim 1, it is characterized in that：
The enclosure wall superheater（25）Level-one direct-contact desuperheater is connected on outlet side（31）.
6. a kind of super-pressure reheat vapor cycle fluidized-bed combustion boiler of burning-used biologic mass fuel as described in claim 1, it is characterized in that：
The low temperature superheater（8）And medium temperature overheater（9）Between be equipped with two level direct-contact desuperheater（32）.
7. a kind of super-pressure reheat vapor cycle fluidized-bed combustion boiler of burning-used biologic mass fuel as described in claim 1, it is characterized in that：
It is described to cross heat shielding（4）Low temperature group outlet side passes through connecting tube（34）Connect three-level direct-contact desuperheater（33）One end, three-level water spray subtract
Warm device（33）The other end connected heat shielding（4）High temperature group outlet side.
8. a kind of super-pressure reheat vapor cycle fluidized-bed combustion boiler of burning-used biologic mass fuel as described in claim 1, it is characterized in that：
High temperature section heat shielding again（6）Outlet side connects level Four direct-contact desuperheater（35）.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721347321.4U CN207514899U (en) | 2017-10-18 | 2017-10-18 | A kind of super-pressure reheat vapor cycle fluidized-bed combustion boiler of burning-used biologic mass fuel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721347321.4U CN207514899U (en) | 2017-10-18 | 2017-10-18 | A kind of super-pressure reheat vapor cycle fluidized-bed combustion boiler of burning-used biologic mass fuel |
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| Publication Number | Publication Date |
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| CN207514899U true CN207514899U (en) | 2018-06-19 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107559813A (en) * | 2017-10-18 | 2018-01-09 | 上海工业锅炉无锡有限公司 | A kind of super-pressure reheat vapor cycle fluidized-bed combustion boiler of burning-used biologic mass fuel |
| CN110220182A (en) * | 2019-07-10 | 2019-09-10 | 哈尔滨红光锅炉总厂有限责任公司 | A kind of biomass direct-fired energy-saving circulating fluidized bed superhigh-pressure high-temp reheated steam boiler |
| CN110220178A (en) * | 2019-07-10 | 2019-09-10 | 哈尔滨红光锅炉总厂有限责任公司 | A kind of biomass direct-fired energy-saving type circulating fluidized bed boiler steam-water circulation system |
-
2017
- 2017-10-18 CN CN201721347321.4U patent/CN207514899U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107559813A (en) * | 2017-10-18 | 2018-01-09 | 上海工业锅炉无锡有限公司 | A kind of super-pressure reheat vapor cycle fluidized-bed combustion boiler of burning-used biologic mass fuel |
| CN110220182A (en) * | 2019-07-10 | 2019-09-10 | 哈尔滨红光锅炉总厂有限责任公司 | A kind of biomass direct-fired energy-saving circulating fluidized bed superhigh-pressure high-temp reheated steam boiler |
| CN110220178A (en) * | 2019-07-10 | 2019-09-10 | 哈尔滨红光锅炉总厂有限责任公司 | A kind of biomass direct-fired energy-saving type circulating fluidized bed boiler steam-water circulation system |
| CN110220178B (en) * | 2019-07-10 | 2024-04-19 | 哈尔滨红光锅炉总厂有限责任公司 | Biomass direct-fired energy-saving steam-water circulation system of circulating fluidized bed boiler |
| CN110220182B (en) * | 2019-07-10 | 2024-04-19 | 哈尔滨红光锅炉总厂有限责任公司 | Biomass direct-fired energy-saving circulating fluidized bed high-temperature ultrahigh-pressure reheat steam boiler |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 214105 No. 101 Antai Road, Xishan Economic and Technological Development Zone, Wuxi City, Jiangsu Province Patentee after: Shanghai Industrial Boiler (Wuxi) Co., Ltd. Address before: 214105 No. 88 Danshan Road, Xishan District, Wuxi City, Jiangsu Province, C301-304 Patentee before: Shanghai industrial boiler Wuxi Co., Ltd. |
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| CP03 | Change of name, title or address |