CN102278743A - Recirculating fluidized bed boiler - Google Patents
Recirculating fluidized bed boiler Download PDFInfo
- Publication number
- CN102278743A CN102278743A CN2011102338235A CN201110233823A CN102278743A CN 102278743 A CN102278743 A CN 102278743A CN 2011102338235 A CN2011102338235 A CN 2011102338235A CN 201110233823 A CN201110233823 A CN 201110233823A CN 102278743 A CN102278743 A CN 102278743A
- Authority
- CN
- China
- Prior art keywords
- flue
- heating surface
- boiler
- economizer
- superheater
- 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.)
- Pending
Links
Images
Landscapes
- Air Supply (AREA)
Abstract
The invention provides a recirculating fluidized bed boiler which can enable the rear pat of the boiler to have less deposited dust, and ensure the normal use of the boiler. The technical scheme is as follows: the boiler comprises a boiler cylinder, a hearth, an evaporation heating surface, a superheater, an economizer, an air preheater and a tail part gas flue; the boiler cylinder is installed above the hearth; the superheater, the evaporation heating surface, the economizer, the air preheater and the tail part gas flue are sequentially installed in the flue gas flow direction of the hearth; the boiler is characterized in that after the flue gas of the hearth rises, the flue gas sequentially flows into a horizontal flue and a turn flue and then is leaded to a vertical flue at the tail part; a cyclone separator is arranged below the horizontal flue; the suction inlet of the cyclone separator faces to the horizontal flue; an exhaust opening at the lower part of the cyclone separator is connected with a returning charge channel; the returning charge channel is communicated with the bottom of the hearth; the cross section of the evaporation heating surface is of a W-shaped structure; and the superheater, the evaporation heating surface of the W-shaped structure, the economizer and the air preheater are sequentially connected and sequentially arranged in the vertical flue at the tail part.
Description
Technical field
The present invention relates to the technical field of structures of boiler, be specially CFBB.
Background technology
Along with China rises steadily to the raising and the burned coal price of environmental requirement, and the continuous development of industrial economy, in a large number at the low-pressure low-temperature low capacity boiler of usefulness because of not adapting to reasons such as environmental requirement, the thermal efficiency be low, face the superseded situation of stopping transport.CFBB has the advantage of many uniquenesses, and is wide as efficiency of combustion height, fuel tolerance, can carry out desulfuration in furnace, can effectively control the discharging of NOx etc.
But after the process burner hearth burning of existing fuel, its fly ash content height, and contain not by clean-burning material particles, existing structure can't effectively be handled, and makes that boiler rear portion dust stratification is serious, just needs deashing in very short time, has influenced the normal use of boiler.
Summary of the invention
At the problems referred to above, the invention provides CFBB, it can make that boiler rear portion dust stratification is few, guarantees the normal use of boiler.
CFBB, its technical scheme is such: it comprises drum, burner hearth, evaporating heating surface, superheater, economizer, air preheater, back-end ductwork, the top of described burner hearth is equipped with described drum, the flue gas flow direction direction of described burner hearth is equipped with described superheater successively, evaporating heating surface, economizer, air preheater, back-end ductwork, it is characterized in that: the flue gas of described burner hearth flows into horizontal flue after rising successively, lead to tail vertical well gas flue behind the turning flue, the below of described horizontal flue is provided with cyclone separator, described cyclone separator suction inlet is towards described horizontal flue, the below outlet of described cyclone separator connects the returning charge passage, described returning charge passage leads to the bottom of described burner hearth, described evaporating heating surface is specially the evaporating heating surface that the cross section is a W shape structure, described superheater, the evaporating heating surface of W shape structure, economizer, air preheater connects in turn and is arranged in turn in the described tail vertical well gas flue.
After adopting structure of the present invention, material forms flue gas after the burner hearth internal combustion, after flue gas flow into horizontal flue, flying dust in the flue gas, do not sucked by cyclone separator by clean-burning material particles, and flow to burner hearth bottom by the returning charge passage, flying dust is discharged from slag notch, is not fully burnt by clean-burning material particles, and it can make that boiler rear portion dust stratification is few, guarantees the normal use of boiler; In addition, the evaporating heating surface of W shape structure makes flue gas fully to contact, and makes the energy utilization rate height.
Description of drawings
Fig. 1 is a front view structural representation of the present invention.
The specific embodiment
See Fig. 1, it comprises drum 1, burner hearth 2, evaporating heating surface 10, superheater 8, economizer 11, air preheater 12, back-end ductwork 14, the top of described burner hearth 2 is equipped with described drum 1, the flue gas flow direction direction of described burner hearth 2 is equipped with described superheater 8 successively, evaporating heating surface 10, economizer 11, air preheater 12, back-end ductwork 14, the flue gas of burner hearth 2 flows into horizontal flue 15 after rising successively, lead to tail vertical well gas flue 17 behind the turning flue 7, the below of described horizontal flue 15 is provided with cyclone separator 9, described cyclone separator 9 suction inlets are towards described horizontal flue 15, the below outlet of described cyclone separator 9 connects returning charge passage 3, described returning charge passage 3 leads to the bottom of described burner hearth 2, described evaporating heating surface 10 is specially the evaporating heating surface that the cross section is a W shape structure, described superheater 8, evaporating heating surface 10, economizer 11, air preheater 12 connects in turn and is arranged in turn in the tail vertical well gas flue 17.Charging aperture 4 leads to the bottom of burner hearth 2, and the below, bottom of burner hearth 2 is provided with water cooled wind chamber 6, slag notch 16, and the bottom sidewall of burner hearth 2 is provided with secondary air channel 5.
Claims (1)
1. CFBB, it comprises drum, burner hearth, evaporating heating surface, superheater, economizer, air preheater, back-end ductwork, the top of described burner hearth is equipped with described drum, the flue gas flow direction direction of described burner hearth is equipped with described superheater successively, evaporating heating surface, economizer, air preheater, back-end ductwork, it is characterized in that: the flue gas of described burner hearth flows into horizontal flue after rising successively, lead to tail vertical well gas flue behind the turning flue, the below of described horizontal flue is provided with cyclone separator, described cyclone separator suction inlet is towards described horizontal flue, the below outlet of described cyclone separator connects the returning charge passage, described returning charge passage leads to the bottom of described burner hearth, described evaporating heating surface is specially the evaporating heating surface that the cross section is a W shape structure, described superheater, the evaporating heating surface of W shape structure, economizer, air preheater connects in turn and is arranged in turn in the described tail vertical well gas flue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102338235A CN102278743A (en) | 2011-08-16 | 2011-08-16 | Recirculating fluidized bed boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102338235A CN102278743A (en) | 2011-08-16 | 2011-08-16 | Recirculating fluidized bed boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102278743A true CN102278743A (en) | 2011-12-14 |
Family
ID=45104348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102338235A Pending CN102278743A (en) | 2011-08-16 | 2011-08-16 | Recirculating fluidized bed boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102278743A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106016226A (en) * | 2016-07-14 | 2016-10-12 | 无锡华光锅炉股份有限公司 | Gas-fired boiler |
| CN109185892A (en) * | 2018-10-11 | 2019-01-11 | 无锡华光锅炉股份有限公司 | A kind of recirculating fluidized bed garbage fired boiler structure |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0851173A2 (en) * | 1996-12-30 | 1998-07-01 | Combustion Engineering, Inc. | A method of controlling nitrous oxide in circulating fluidized bed steam generators |
| US20030202913A1 (en) * | 2002-04-30 | 2003-10-30 | Mikhail Maryamchik | Compact footprint CFB with mechanical dust collector |
| CN201526942U (en) * | 2009-09-30 | 2010-07-14 | 哈尔滨锅炉厂有限责任公司 | High-efficient energy-saving residual-heat utilization device |
| CN201582805U (en) * | 2010-01-05 | 2010-09-15 | 太原锅炉集团有限公司 | Biomass-energy circulating fluidized bed boiler with low energy consumption |
| CN102012097A (en) * | 2010-04-28 | 2011-04-13 | 山东圣威新能源有限公司 | Fluidized bed oil and water dual-medium circulation boiler |
| CN201811432U (en) * | 2010-09-29 | 2011-04-27 | 河北艺能锅炉有限责任公司 | Heat-conduction oil boiler of recirculating fluidized bed |
| CN202267056U (en) * | 2011-08-16 | 2012-06-06 | 江苏太湖锅炉股份有限公司 | Circulating fluidized bed boiler |
-
2011
- 2011-08-16 CN CN2011102338235A patent/CN102278743A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0851173A2 (en) * | 1996-12-30 | 1998-07-01 | Combustion Engineering, Inc. | A method of controlling nitrous oxide in circulating fluidized bed steam generators |
| US20030202913A1 (en) * | 2002-04-30 | 2003-10-30 | Mikhail Maryamchik | Compact footprint CFB with mechanical dust collector |
| CN201526942U (en) * | 2009-09-30 | 2010-07-14 | 哈尔滨锅炉厂有限责任公司 | High-efficient energy-saving residual-heat utilization device |
| CN201582805U (en) * | 2010-01-05 | 2010-09-15 | 太原锅炉集团有限公司 | Biomass-energy circulating fluidized bed boiler with low energy consumption |
| CN102012097A (en) * | 2010-04-28 | 2011-04-13 | 山东圣威新能源有限公司 | Fluidized bed oil and water dual-medium circulation boiler |
| CN201811432U (en) * | 2010-09-29 | 2011-04-27 | 河北艺能锅炉有限责任公司 | Heat-conduction oil boiler of recirculating fluidized bed |
| CN202267056U (en) * | 2011-08-16 | 2012-06-06 | 江苏太湖锅炉股份有限公司 | Circulating fluidized bed boiler |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106016226A (en) * | 2016-07-14 | 2016-10-12 | 无锡华光锅炉股份有限公司 | Gas-fired boiler |
| CN106016226B (en) * | 2016-07-14 | 2018-10-16 | 无锡华光锅炉股份有限公司 | A kind of gas fired-boiler |
| CN109185892A (en) * | 2018-10-11 | 2019-01-11 | 无锡华光锅炉股份有限公司 | A kind of recirculating fluidized bed garbage fired boiler structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102588959B (en) | Gas-solid separator of recirculating fluidized bed boiler and boiler comprising same | |
| CN101949535A (en) | Low-ratio biomass circulating fluidized bed boiler and combustion method thereof | |
| CN201964387U (en) | High-efficiency biomass-combusting electricity generating boiler | |
| CN203718760U (en) | Boiling furnace | |
| CN201463253U (en) | Double-furnace horizontal type industrial pulverized coal fired boiler | |
| CN202141027U (en) | Environment-friendly energy-saving biomass hot pipe boiler | |
| CN203731392U (en) | U-shaped flame boiler with overhead straight-through pulverized coal burner | |
| CN102278743A (en) | Recirculating fluidized bed boiler | |
| CN202267056U (en) | Circulating fluidized bed boiler | |
| CN202101217U (en) | Biomass steam boiler with horizontal water and fire tubes | |
| CN101963350A (en) | Material separator for circulating fluidized bed boiler | |
| CN103322676A (en) | Biomass fuel hot blast device | |
| CN106287680A (en) | Small-sized biomass shaped fuel recirculating fluidized bed steam boiler | |
| CN102095254B (en) | Organic heat carrier boiler of fluidized bed, with low cost, environment protection, energy saving and emission reduction | |
| CN101576317B (en) | Horizontal type double-flue industrial coal powder boiler | |
| CN205090372U (en) | Meniscus formula flying dust circulation separator structure | |
| CN201521950U (en) | Circulating fluidized bed boiler provided with internal cyclone upper-exhausting high-temperature separator | |
| CN100478612C (en) | Circulating fluidized bed combustion device and its combustion method | |
| CN103388820A (en) | Clean pulverized coal combustion industrial boiler device | |
| CN102563627B (en) | Efficient pulverized coal industrial boiler with low-pollution emission characteristic | |
| CN203336814U (en) | Horizontal hot water boiler | |
| CN202709088U (en) | High-efficiency coal powder burning device for molten salt furnace | |
| CN201166360Y (en) | Affiliated combustion apparatus for anthracite powder to replace lump coal | |
| CN202813348U (en) | Layer-burning boiler with internal two-stage dust collector | |
| CN202024473U (en) | Environment-friendly, energy-saving and emission-reduction fluidized bed organic heat carrier boiler with low cost |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20111214 |