CN206989184U - A kind of all steel landing and the CFBB of single separator - Google Patents
A kind of all steel landing and the CFBB of single separator Download PDFInfo
- Publication number
- CN206989184U CN206989184U CN201720145547.XU CN201720145547U CN206989184U CN 206989184 U CN206989184 U CN 206989184U CN 201720145547 U CN201720145547 U CN 201720145547U CN 206989184 U CN206989184 U CN 206989184U
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- CN
- China
- Prior art keywords
- flue
- separator
- heat transfer
- cfbb
- burner hearth
- 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
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- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Abstract
A kind of all steel landing and the CFBB of single separator, including supporting steel frame, burner hearth and flue are arranged at intervals with supporting steel frame side by side, roof of the furnace is suspended on supporting steel frame, lower furnace portion is provided with fluid bed, upper furnace offers exhaust opening, exhaust opening is connected with separator by smoke discharging pipe, the discharging opening of separator is connected with refeed line, refeed line is connected with lower furnace portion, flue includes horizontally disposed connection flue and the heat transfer flue being vertically arranged, upper drum is disposed with heat transfer flue from top to bottom, lower drum, economizer and air preheater, it is connected between upper drum and lower drum by convection bank, burner hearth, connection flue and heat transfer flue surround by fin panel casing sealing.The utility model is compact-sized, install convenient, heat transfer efficiency height, good sealing effect, safe and reliable.
Description
Technical field
The utility model belongs to steam boiler technical field, more particularly to the recycle stream of a kind of landing of all steel and single separator
Fluidized bed boiler.
Background technology
CFBB is the high-efficiency low-pollution clean-burning technology developed rapidly in recent ten years, due to it
It is excellent with protrusions such as fuel tolerance is wide, high combustion efficiency, discharged nitrous oxides are low, load regulation rate is big and Load Regulation is fast
Point, thus be worldwide widely used, and the CFBB of Large Copacity is connect by power industry
By.Existing CFBB uses concrete two level foundation of civil work and cyclone separator more, because foundation of civil work is applied
Work is slower, and labor intensive and time are larger, delays the installation period of boiler to a certain extent；Used by other conventional boiler
Cyclone cyclone separator arrangement, structure is miscellaneous, manufacture installation extremely inconvenience and maintenance difficulty.
Utility model content
The utility model is in order to solve weak point of the prior art, there is provided a kind of compact-sized, install convenient, heat transfer
Efficiency high, good sealing effect, safe and reliable all steel land and the CFBB of single separator.
In order to solve the above technical problems, the utility model adopts the following technical scheme that：A kind of all steel landing and single separator
CFBB, including supporting steel frame is arranged at intervals with burner hearth and flue on supporting steel frame side by side, and burner hearth is along vertical side
To setting, roof of the furnace is suspended on supporting steel frame, and lower furnace portion is provided with fluid bed, and upper furnace offers exhaust opening, smoke evacuation
Mouth is connected with separator by smoke discharging pipe, and the discharging opening of separator is connected with refeed line, and refeed line is connected with lower furnace portion,
Positioned at the top of fluid bed, flue includes horizontally disposed connection flue and the heat transfer flue being vertically arranged for the outlet of refeed line,
Connection flue both ends are connected with the top of separator and heat transfer flue top respectively, are disposed with from top to bottom in heat transfer flue
Upper drum, lower drum, economizer and air preheater, are connected between upper drum and lower drum by convection bank, burner hearth, company
Cigarette receiving road and heat transfer flue surround by fin panel casing sealing.
The separator is single scroll casing type high-temperature heat insulation cyclone separator.
The outer wall of burner hearth, connection flue and heat transfer flue uses light-duty tube structure.
The size of connection flue cross section increases successively along flue gas circulating direction.
The refeed line is in bending structure.
Lower furnace portion is provided with the changeover portion above fluid bed, and the size of changeover portion cross section increases successively from bottom to top
Greatly.
Touch with ground and be provided with support feet in supporting steel frame lower end.
Using above-mentioned technical proposal, the utility model has the following advantages that：
1st, the utility model uses the supporting steel frame structure of all steel landing, saves manpower and financial cost, is easily installed simultaneously
Installation period is shortened, one end that supporting steel frame contacts with ground is provided with support feet so that structure is more firm, and security obtains
To raising.
2nd, separator of the present utility model uses single scroll casing type high-temperature heat insulation cyclone separator, simple and reliable for structure, and
Quick for installation, maintenance is convenient.
3rd, the utility model is connected, flue gas is more using double barrel structures between upper drum and lower drum by convection bank
Backhaul transversal flow convection bank, while heat transfer efficiency is improved, design uses low flue gas flow rate, effectively reduces convection bank
Abrasion.
4th, burner hearth, connection flue and heat transfer flue surround by fin panel casing sealing, reduce Air Leakage Into Boilers coefficient, can
The thermal efficiency of boiler is effectively improved, and the outer wall of burner hearth, connection flue and heat transfer flue uses light-duty tube structure,
Stabilized structure.
5th, the flue gas isolated through separator is entered in heat transfer flue by connecting flue, connects the big of flue cross section
Small to increase successively along flue gas circulating direction, thermal inertia is small and makes structure more safe and reliable；Refeed line is in bending structure so that
The material separated through separator is more uniformly smoothly passed through in burner hearth.
6th, lower furnace portion is provided with the changeover portion above fluid bed, and the size of changeover portion cross section increases successively from bottom to top
Greatly so that after fluid bed carries out fluidized bed combustion, flue gas flows fuel at furnace exhaust mouth.
7th, convection bank, economizer and air preheater are collected to the heat in flue gas, are avoided the loss of heat, are carried
High thermal transition efficiency；Air preheater is exactly flue gas in heat transfer flue by the fin of inside by the sky before entering boiler
Gas is preheating to the heating surface of certain temperature, for improving the heat exchange performance of boiler, reduces energy expenditure；Economizer is used to reclaim
A kind of device of waste heat, the heating surface for saturation water boiler feedwater being heated under drum pressure, save the energy and reduce cigarette
The exhaust gas temperature of gas.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the A-A profiles in Fig. 1.
Embodiment
As shown in Figure 1-2, the CFBB of a kind of all steel landing of the present utility model and single separator, including branch
Steelframe 1 is supportted, burner hearth 2 and flue are arranged at intervals with side by side on supporting steel frame 1, burner hearth 2 is vertically set, and the top of burner hearth 2 is outstanding
It is hung on supporting steel frame 1, the bottom of burner hearth 2 is provided with fluid bed 3, using the telescopic connection of expansion, stove between fluid bed 3 and burner hearth 2
The top of thorax 2 offers exhaust opening, and exhaust opening is connected with separator 5 by smoke discharging pipe 4, and the discharging opening of separator 5, which is connected with, to be returned
Expects pipe 6, refeed line 6 are connected with the bottom of burner hearth 2, and the outlet of refeed line 6 is set positioned at the top of fluid bed 3, flue including level
The connection flue 7 put and the heat transfer flue 8 being vertically arranged, connection flue 7 both ends respectively with the top of separator 5 and heat transfer flue 8
Top is connected, and is disposed with upper drum 9, lower drum 10, economizer 11 and air preheater in heat transfer flue 8 from top to bottom
12, it is connected between upper drum 9 and lower drum 10 by convection bank 13, burner hearth 2, connection flue 7 and heat transfer flue 8 are by film
The sealing of formula water-cooling wall surrounds.Fluid bed 3, separator 5, economizer 11 and air preheater 12 are the existing conventional skill in this area
Art, its concrete structure are no longer described in detail.
The separator 5 is single scroll casing type high-temperature heat insulation cyclone separator.
The outer wall of burner hearth 2, connection flue 7 and heat transfer flue 8 uses light-duty tube structure.
The size of connection flue 7 cross section increases successively along flue gas circulating direction.
The refeed line 6 is in bending structure.
The bottom of burner hearth 2 is provided with the changeover portion 14 positioned at the top of fluid bed 3, the size of the cross section of changeover portion 14 from bottom to top according to
Secondary increase.
Touch with ground and be provided with support feet 15 in the lower end of supporting steel frame 1.
The course of work of the present utility model is：Fuel carries out fluidized bed combustion in burner hearth 2, and flue gas is flowing caused by burning
Flowed up in the presence of change bed 3, the exhaust opening through burner hearth 2 is entered in separator 5 by smoke discharging pipe 4, is separated
Material is re-fed into burner hearth 2 through refeed line 6 and carries out fluidized bed combustion again, and the flue gas isolated is entered through connection flue 7 and changed
In heating flue 8, successively by convection bank 13, economizer 11 and air preheater 12, most chimney is discharged into through air-introduced machine afterwards；Convection current
Tube bank 13, economizer 11 and air preheater 12 are collected to the heat in flue gas, avoid the loss of heat, are improved heat and are turned
Change efficiency；Air preheater 12 is exactly that the flue gas in heat transfer flue 8 is pre- by the air before entering boiler by the fin of inside
Heat arrives the heating surface of certain temperature, for improving the heat exchange performance of boiler, reduces energy expenditure；Economizer 11 is remaining for reclaiming
A kind of device of heat, the heating surface for saturation water boiler feedwater being heated under drum pressure, save the energy and reduce flue gas
Exhaust gas temperature.
The present embodiment not makees any formal limitation, every foundation to shape of the present utility model, material, structure etc.
Any simple modification, equivalent change and modification that the technical essence of the utility model is made to above example, belongs to this reality
With the protection domain of new technique scheme.
Claims (7)
1. a kind of all steel landing and the CFBB of single separator, it is characterised in that：Including supporting steel frame, supporting steel frame
On be arranged at intervals with burner hearth and flue side by side, burner hearth is vertically set, and roof of the furnace is suspended on supporting steel frame, under burner hearth
Portion is provided with fluid bed, and upper furnace offers exhaust opening, and exhaust opening is connected with separator, the discharging of separator by smoke discharging pipe
Mouth is connected with refeed line, and refeed line is connected with lower furnace portion, and the outlet of refeed line includes water positioned at the top of fluid bed, flue
The flat connection flue set and the heat transfer flue being vertically arranged, connection flue both ends respectively with separator top and heat transfer flue
Portion is connected, and is disposed with upper drum, lower drum, economizer and air preheater, upper drum in heat transfer flue from top to bottom
It is connected between lower drum by convection bank, burner hearth, connection flue and heat transfer flue surround by fin panel casing sealing.
2. all steel landing according to claim 1 and the CFBB of single separator, it is characterised in that：Described point
It is single scroll casing type high-temperature heat insulation cyclone separator from device.
3. all steel landing according to claim 1 or 2 and the CFBB of single separator, it is characterised in that：Stove
The outer wall of thorax, connection flue and heat transfer flue uses light-duty tube structure.
4. all steel landing according to claim 1 or 2 and the CFBB of single separator, it is characterised in that：Even
The size of cigarette receiving road cross section increases successively along flue gas circulating direction.
5. all steel landing according to claim 1 and the CFBB of single separator, it is characterised in that：It is described to return
Expects pipe is in bending structure.
6. all steel landing according to claim 1 and the CFBB of single separator, it is characterised in that：Under burner hearth
Portion is provided with the changeover portion above fluid bed, and the size of changeover portion cross section increases successively from bottom to top.
7. all steel landing according to claim 1 and the CFBB of single separator, it is characterised in that：Supporting steel
Touch with ground and be provided with support feet in frame lower end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720145547.XU CN206989184U (en) | 2017-09-12 | 2017-09-12 | A kind of all steel landing and the CFBB of single separator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720145547.XU CN206989184U (en) | 2017-09-12 | 2017-09-12 | A kind of all steel landing and the CFBB of single separator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206989184U true CN206989184U (en) | 2018-02-09 |
Family
ID=61423082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720145547.XU Expired - Fee Related CN206989184U (en) | 2017-09-12 | 2017-09-12 | A kind of all steel landing and the CFBB of single separator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206989184U (en) |
-
2017
- 2017-09-12 CN CN201720145547.XU patent/CN206989184U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180209 Termination date: 20200912 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |