CN201293311Y - Boiler fluidized-bed wind distribution system employing dish shaped air distribution plate - Google Patents
Boiler fluidized-bed wind distribution system employing dish shaped air distribution plate Download PDFInfo
- Publication number
- CN201293311Y CN201293311Y CNU2008201586922U CN200820158692U CN201293311Y CN 201293311 Y CN201293311 Y CN 201293311Y CN U2008201586922 U CNU2008201586922 U CN U2008201586922U CN 200820158692 U CN200820158692 U CN 200820158692U CN 201293311 Y CN201293311 Y CN 201293311Y
- Authority
- CN
- China
- Prior art keywords
- air distribution
- distribution plate
- air
- bed
- plate
- 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
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Landscapes
- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Abstract
一种采用碟形布风板的锅炉流化床布风系统，它的碟形布风板由中部较低的水平布风板和较高的四周边板以及位于水平布风板和四周边板之间的斜面布风板组成整体，四周边板内侧板体为布风板结构；在四周边板的布风板结构和斜面布风板的下面设有环形风室，水平布风板下面设有中部风室；水平布风板上安装直风帽；斜面布风板上安装斜鸭嘴风帽，四周边板的布风板结构安装直鸭嘴风帽。它可在流化床内产生中间床料向上喷涌，而四周床料向下补充的床内循环，以明显地加强燃料和床料的横向流动，使床内的温度场、空气、烟气场和炭、灰场分布均匀、燃烧效率高，减少了不完全燃烧造成的损失。
A boiler fluidized bed air distribution system using a dish-shaped air distribution plate. Its dish-shaped air distribution plate consists of a lower horizontal air distribution plate in the middle and a higher peripheral plate The sloping air distribution boards in between form a whole, and the inner board body of the surrounding peripheral boards is an air distribution board structure; an annular air chamber is arranged under the air distribution board structure of the surrounding peripheral boards and the inclined air distribution board, and a horizontal air distribution board is set below There is a central air chamber; a straight air cap is installed on the horizontal air distribution board; an oblique duckbill wind cap is installed on the inclined air distribution board, and a straight duckbill wind cap is installed on the air distribution board structure of the peripheral board. It can generate the bed circulation in which the middle bed material spews upwards and the surrounding bed materials are supplemented downwards in the fluidized bed, so as to obviously strengthen the lateral flow of fuel and bed material, and make the temperature field, air and smoke field in the bed The charcoal and ash field are evenly distributed, and the combustion efficiency is high, which reduces the loss caused by incomplete combustion.
Description
Technical field
The utility model relates to the fluid bed cloth wind structure of fluidized-bed combustion boiler.
Background technology
Fluid bed is the important combustion parts in the fluidized-bed combustion boiler.Present fluid bed mostly adopts the planar cloth aerofoil that air is delivered to equably to carry out fluidized bed combustion in the bed; During burning, upper and lower the beating of bed material, the coal supply point concentrates on a certain side of fluid bed, has caused bed an interior charcoal concentration and a temperature distributing disproportionation, but the distribution of air is again uniformly, therefore, has increased incomplete burning combustion (q3 and q4) loss.
The utility model content
The technical problems to be solved in the utility model is, defective at the prior art existence, design a kind of boiler fluid bed cloth wind system that adopts dish-shaped air distribution plate, can produce the intermediate bed material in fluid bed upwards gushs, and circulate in the bed that bed expects to replenish downwards all around, to strengthen the lateral flow of fuel and bed material significantly, make temperature field, air, flue gas field and a charcoal in the bed, grey field distribution is even, efficiency of combustion is high, can reduced the loss that intact power burning causes; Simultaneously, the bed material mixes, and bed temperature is even, is difficult for coking, and is stable, and the burning load adjustable range is wide.
The technical solution of the utility model is, the structure of the boiler fluid bed cloth wind system of the dish-shaped air distribution plate of described employing is, it adopts dish-shaped air distribution plate, this dish air distribution plate by the lower horizontal air distribution plate in middle part and higher around side plate and described lower horizontal air distribution plate and higher around inclined-plane air distribution plate between the side plate forms integral body, side plate interior plate body also is the air distribution plate structure all around; Around be provided with annular air compartment below the air distribution plate structure of side plate and the inclined-plane air distribution plate, be provided with the middle part air compartment below the horizontal air distribution plate; Straight blast cap is installed on the horizontal air distribution plate, the oblique duckbilled blast cap of axis and air outlet parallel with inclined-plane air distribution plate plate face in exhaust passage towards horizontal air distribution plate is installed on the inclined-plane air distribution plate, axis and air outlet parallel in the exhaust passage of the air distribution plate structure of side plate installation all around with side plate plate face all around towards horizontal air distribution plate straight duckbilled blast cap.
Below the utility model made further specify.
Referring to Fig. 1 and Fig. 2, the structure of the boiler fluid bed cloth wind system of the dish-shaped air distribution plate of employing described in the utility model is, it adopts dish-shaped air distribution plate 1, this dish air distribution plate 1 by the lower horizontal air distribution plate 2 in middle part and higher around side plate 4 and described lower horizontal air distribution plate 2 and higher around inclined-plane air distribution plate 3 between the side plate 4 forms wholely, side plate 4 inboard plate bodys also are air distribution plate structure (promptly having blast cap installing hole 6) 5 all around; Referring to Fig. 3, around be provided with annular air compartment 7 below the air distribution plate structure 5 of side plate 4 and the inclined-plane air distribution plate 3, be provided with middle part air compartment 8 below the horizontal air distribution plate 2; Straight blast cap 9 is installed on the horizontal air distribution plate 2, and described straight blast cap 9 can adopt prior art structure shown in Figure 4; The oblique duckbilled blast cap 12 of its exhaust passage axis 10 shown in Figure 5 and air outlet 11 parallel with inclined-plane air distribution plate 3 plate faces towards horizontal air distribution plate 2 is installed on the inclined-plane air distribution plate 3, its exhaust passage axis 13 shown in Figure 6 of air distribution plate structure 5 installations of side plate 4 all around and air outlet 14 parallel with side plate 4 plate faces all around towards horizontal air distribution plate 2 straight duckbilled blast cap 15.
It is inner circulation fluidized that cloth wind system of the present utility model can effectively form bed.Facts have proved that bed is inner circulation fluidized to have certain dreg-breaking performance, the macro particles fuel of bed bottom sediments can be carried to the aerofoil center, and be discharged by cold cinder notch; Removed the dead bed of material in bottom thus, the boiler operatiopn time is obviously prolonged, only need open air blast and cold cinder notch, just can automatically the bed material on the aerofoil have been cleaned out; When ignition of the boiler, the duration of ignition, igniting require and fuel used greatly reduction.
As known from the above, the utility model is a kind of boiler fluid bed cloth wind system that adopts dish-shaped air distribution plate, it can produce the intermediate bed material and upwards gush in fluid bed, and circulate in the bed that bed expects to replenish downwards all around, to strengthen the lateral flow of fuel and bed material significantly, make temperature field, air, flue gas field and a charcoal in the bed, grey field distribution is even, efficiency of combustion is high, can reduced the loss that intact power burning causes; Simultaneously, the bed material mixes, and bed temperature is even, is difficult for coking, and is stable, and the burning load adjustable range is wide.
Description of drawings
Fig. 1 is the vertical sectional structure schematic diagram of a kind of embodiment of dish-shaped air distribution plate of cloth wind system;
Fig. 2 is the plan structure schematic diagram of member shown in Figure 1;
Fig. 3 is the vertical sectional structure schematic diagram of a kind of embodiment of cloth wind system;
Fig. 4 is the vertical sectional structure schematic diagram of a kind of embodiment of straight blast cap among Fig. 3;
Fig. 5 is the vertical sectional structure schematic diagram of a kind of embodiment of oblique duckbilled blast cap among Fig. 3;
Fig. 6 is the vertical sectional structure schematic diagram of a kind of embodiment of straight duckbilled blast cap among Fig. 3.
In the drawings:
1-dish air distribution plate, the horizontal air distribution plate of 2-, 3-inclined-plane air distribution plate,
Side plate around the 4-, 5-air distribution plate structure, 6-blast cap installing hole,
7-annular air compartment, 8-middle part air compartment, the straight blast cap of 9-,
10-exhaust passage axis, the 11-air outlet, the oblique duckbilled blast cap of 12-,
13-exhaust passage axis, the 14-air outlet, the straight duckbilled blast cap of 15-,
The straight air channel of 16-, 17-leaks the slag pipe.
The specific embodiment
As depicted in figs. 1 and 2, the structure of the boiler fluid bed cloth wind system of the dish-shaped air distribution plate of described employing is, it adopts dish-shaped air distribution plate 1, this dish air distribution plate 1 by the lower horizontal air distribution plate 2 in middle part and higher around side plate 4 and described lower horizontal air distribution plate 2 and higher around inclined-plane air distribution plate 3 between the side plate 4 forms integral body, side plate 4 inboard plate bodys also are air distribution plate structure 5 all around; Referring to Fig. 3, around be provided with annular air compartment 7 below the air distribution plate structure 5 of side plate 4 and the inclined-plane air distribution plate 3, be provided with middle part air compartment 8 below the horizontal air distribution plate 2; Straight blast cap 9 is installed on the horizontal air distribution plate 2, and described straight blast cap 9 can adopt prior art structure shown in Figure 4; The oblique duckbilled blast cap 12 of its exhaust passage axis 10 shown in Figure 5 and air outlet 11 parallel with inclined-plane air distribution plate 3 plate faces towards horizontal air distribution plate 2 is installed on the inclined-plane air distribution plate 3, its exhaust passage axis 13 shown in Figure 6 of air distribution plate structure 5 installations of side plate 4 all around and air outlet 14 parallel with side plate 4 plate faces all around towards horizontal air distribution plate 2 straight duckbilled blast cap 15.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201586922U CN201293311Y (en) | 2008-10-08 | 2008-10-08 | Boiler fluidized-bed wind distribution system employing dish shaped air distribution plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201586922U CN201293311Y (en) | 2008-10-08 | 2008-10-08 | Boiler fluidized-bed wind distribution system employing dish shaped air distribution plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201293311Y true CN201293311Y (en) | 2009-08-19 |
Family
ID=41006790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201586922U Expired - Fee Related CN201293311Y (en) | 2008-10-08 | 2008-10-08 | Boiler fluidized-bed wind distribution system employing dish shaped air distribution plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201293311Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101949535A (en) * | 2010-09-28 | 2011-01-19 | 哈尔滨工业大学 | Low-ratio biomass circulating fluidized bed boiler and combustion method thereof |
| CN106439799A (en) * | 2016-04-12 | 2017-02-22 | 无锡华光锅炉股份有限公司 | Air distribution structure of circulating fluidized bed boiler |
-
2008
- 2008-10-08 CN CNU2008201586922U patent/CN201293311Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101949535A (en) * | 2010-09-28 | 2011-01-19 | 哈尔滨工业大学 | Low-ratio biomass circulating fluidized bed boiler and combustion method thereof |
| CN101949535B (en) * | 2010-09-28 | 2011-10-19 | 哈尔滨工业大学 | Low-ratio biomass circulating fluidized bed boiler and combustion method thereof |
| CN106439799A (en) * | 2016-04-12 | 2017-02-22 | 无锡华光锅炉股份有限公司 | Air distribution structure of circulating fluidized bed boiler |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105090980B (en) | A kind of spiral-flow type fluidized bed combustion device | |
| CN202253611U (en) | Air distributor and fluidized bed rubbish boiler provided with same | |
| CN201293311Y (en) | Boiler fluidized-bed wind distribution system employing dish shaped air distribution plate | |
| CN101846386A (en) | Biomass fuel boiler | |
| CN201844551U (en) | Hot blast stove | |
| CN202390322U (en) | Lime kiln with hot-air circulation function | |
| CN105090942B (en) | A kind of micro- wind cap device | |
| CN106931467B (en) | A graded air supply and flue gas recirculation system for a return furnace | |
| CN201462949U (en) | Biomass-burning high-efficiency rotary fire energy-saving furnace | |
| CN200949812Y (en) | Environment-friendly energy-saving steam boiler | |
| CN202158655U (en) | Straight-seam hot blast furnace provided with smoke dust settling chamber | |
| CN202303469U (en) | Smokeless and energy-saving furnace | |
| CN207865442U (en) | A kind of improved structure of environment-protection combustion stove | |
| CN207006243U (en) | A kind of air stage feeding of air return stove and flue gas recirculation system | |
| CN208170449U (en) | A kind of integrated energy-saving type gas-cooker | |
| CN201066144Y (en) | Firewood-saving oven | |
| CN207514901U (en) | A kind of boiler revert system | |
| CN205664409U (en) | Biomass combustion furnace air -out device | |
| CN201973875U (en) | Energy-saving and environment-friendly furnace system | |
| CN204535080U (en) | A kind of energy-saving and emission-reduction heating furnace | |
| CN111189073A (en) | Furnace bridge for biomass furnace | |
| CN207865439U (en) | A kind of improved structure of environment-protection combustion stove | |
| CN2424417Y (en) | Verticle clean steam and water boiler by burning coal | |
| CN207865440U (en) | A kind of improved structure of environment-protection combustion stove | |
| CN200975704Y (en) | High temperature furnace |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090819 Termination date: 20151008 |
|
| EXPY | Termination of patent right or utility model |