CN201289220Y - Biomass molding fuel boiler - Google Patents
Biomass molding fuel boiler Download PDFInfo
- Publication number
- CN201289220Y CN201289220Y CNU200820148966XU CN200820148966U CN201289220Y CN 201289220 Y CN201289220 Y CN 201289220Y CN U200820148966X U CNU200820148966X U CN U200820148966XU CN 200820148966 U CN200820148966 U CN 200820148966U CN 201289220 Y CN201289220 Y CN 201289220Y
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- hearth
- drum
- boiler
- furnace
- wall
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Abstract
A biomass briquette boiler comprises a boiler wall, a hearth, a dust settling chamber, an upper boiler door and a lower boiler door. A water-cooled grate is arranged in the hearth; the hearth is divided into an upper hearth and a lower hearth; an exhaust gas outlet is formed on the boiler wall on the rear side of the lower hearth; an upper drum is arranged above the upper hearth and the dust settling chamber; a lower drum is arranged at the lower part of the dust settling chamber; the upper drum is communicated with the lower drum; and an opening on the rear wall of the upper drum is connected with a flue. In the utility model, the upper drum is arranged above the upper hearth and the dust settling chamber; part of the upper drum is arranged above the upper hearth; and part of heat of fuel which burns in the upper hearth is absorbed by utilizing water inside the drums. Therefore, the utility model increases radiation heating area and serves the purpose of reducing the temperature of the upper hearth, thereby reducing the radiation loss of the boiler.
Description
Technical field
The utility model belongs to the boiler technology field, is specifically related to a kind of biomass molding fuel boiler.
Background technology
The living beings technology for compressing and forming is with biomass castoffs such as stalk, rice husk, sawdust and wood chips, with the method for machinery pressurization, be compressed into have definite shape, solid molding fuel that density is bigger.This fuel is because of thermal efficiency height, vigor are lasting, clean environment firendly, transportation are stored advantage such as convenient and be easy to be accepted by people.At present, to the research of biomass molding fuel burning comparative maturity, but also do not develop or seldom have the combustion apparatus of special combustion biomass molding fuel.Chinese patent CN2921624Y discloses a kind of biomass molding fuel boiler, comprise combustion chamber, dust-settling compartment, thermal convection current heating surface, vertically be provided with upper and lower two-layer fire grate in the combustion chamber side by side, be provided with upper furnace door on the positive furnace wall of combustion chamber in the top of upper fire-grating, be provided with middle fire door between upper fire-grating and lower fire grating, the furnace wall, the back side of combustion chamber is provided with exhanst gas outlet.The radiation heating-surface of this biomass molding fuel boiler promptly is water-cooled row's surface, and this radiation heating-surface is long-pending less than normal, causes radiation heat transfer insufficient, make fire box temperature too high, particularly upper furnace causes near the furnace wall body of wall of upper furnace door overheated, has increased the radiation loss of boiler.The convection heating surface of biomass molding fuel boiler is divided into depositing dust convection heating surface and two parts of cooling heating surface, two convection heating surfaces all place in the water tank, water capacity is little, when the water heat exchange in flue gas and the water tank is uneven, hot water part boiling phenomenon can occur, increased the destabilizing factor of boiler operatiopn, its design arrangement is reasonable inadequately, and some is short partially for flue length, and the water heat exchange in flue gas and the boiler water tank is abundant inadequately, make exhaust gas temperature too high, increased the heat loss due to exhaust gas of boiler.
The utility model content
The purpose of this utility model is to solve technical problems such as the fire box temperature height, exhaust gas temperature height, the heat loss that have the existence of biomass molding fuel boiler now are big, it is big to provide a kind of radiation, convection heating surface to amass, the biomass molding fuel boiler that fire box temperature is low, exhaust gas temperature is low, heat loss is little.
The purpose of this utility model is achieved through the following technical solutions:
Biomass molding fuel boiler of the present utility model comprises furnace wall, burner hearth, dust-settling compartment, upper furnace door and lower furnace door, is provided with water-cooled grate in burner hearth, and burner hearth is divided into upper furnace and lower hearth, and the rear side furnace wall of lower hearth is provided with exhanst gas outlet.Wherein be provided with upper drum above upper furnace and dirt pocket, the dust-settling compartment bottom is provided with lower drum, and upper drum is connected with lower drum, and the rear wall openings of upper drum is connected with flue.The positive furnace wall of upper furnace is provided with upper furnace door, and the positive furnace wall of lower hearth is provided with lower furnace door.
Above boiler, be provided with exhaust outlet and delivery port.
Compare with prior art, the beneficial effects of the utility model are as follows: (1) biomass molding fuel boiler of the present utility model is provided with upper drum on the top of upper furnace and dust-settling compartment, upper drum partly places the upper furnace top, utilize the water in the drum to absorb the part heat of fuel in the upper furnace burning, thereby it is long-pending to increase radiation heating-surface, play the purpose that reduces the upper furnace temperature, thereby reduce the radiation loss of boiler.(2) biomass molding fuel boiler cooling convection heating surface of the present utility model places in the upper drum, enlarged water capacity, flue length has extended, make the fully heat exchange of water of flue gas and drum, reduce exhaust gas temperature, reduce heat loss due to exhaust gas, utilized the variation of the lower drum at boiler rear portion and the exhaust gases passes area that pipeline causes to play the depositing dust effect simultaneously.
Description of drawings
Accompanying drawing is a structural representation of the present utility model.
The specific embodiment
As shown in drawings, biomass molding fuel boiler of the present utility model comprises furnace wall, burner hearth, dust-settling compartment, upper furnace door and lower furnace door, is provided with water-cooled grate 5 in burner hearth, burner hearth is divided into upper furnace 3 and lower hearth 6, and the rear side furnace wall of lower hearth 6 is provided with exhanst gas outlet 8.Wherein be provided with upper drum 2 above upper furnace 3 and dirt pocket 9, dust-settling compartment 9 bottoms are provided with lower drum 10, and upper drum 2 is connected with lower drum 10, and the rear wall openings of upper drum 2 is connected with flue 14.Air-introduced machine 13 is installed on the flue 14, and the end of flue 14 is communicated with chimney 15.The positive furnace wall of upper furnace 3 is provided with upper furnace door 4, and the positive furnace wall of lower hearth 6 is provided with lower furnace door 7.
Above boiler, be provided with exhaust outlet 1 and delivery port 16.
Operation principle of the present utility model is as follows:
As shown in drawings, lower drum 10 is provided with water inlet 12 and sewage draining exit 11, behind a certain amount of water of water inlet 12 injections.Certain particle diameter straw briquette fuel is added in downdraft burning on the water-cooled grate 5 through upper furnace door 4, the heat that burning produces transmits heat by the radiation heating-surface 5 of water-cooled grate 5, and stalk bits that water-cooled grate 5 leaks down and lime-ash burn away in lower hearth 6 bottoms and burn.Flue gas that forms after straw briquette fuel burns on water-cooled grate 5 and part fuel gas see through fuel bed, ash bed enters lower hearth 6 and burns, and the flue gas that produces with the fuel of lower hearth 6 bottoms, flow to boiler convection heating surface on the back through outlet flue 8, under the effect of air-introduced machine 13, flue gas is got rid of by chimney 15 through dirt pocket 9 and flue 14.The ashes that burning produces are cleared up away by lower furnace door 7.
Claims (2)
1. biomass molding fuel boiler, comprise furnace wall, burner hearth, dust-settling compartment, upper furnace door and lower furnace door, in burner hearth, be provided with water-cooled grate (5), burner hearth is divided into upper furnace (3) and lower hearth (6), the rear side furnace wall of lower hearth (6) is provided with exhanst gas outlet (8), it is characterized in that: the top at upper furnace (3) and dirt pocket (9) is provided with upper drum (2), dust-settling compartment (9) bottom is provided with lower drum (10), upper drum (2) is connected with lower drum (10), and the rear wall openings of upper drum (2) is connected with flue (14); The positive furnace wall of upper furnace (3) is provided with upper furnace door (4), and the positive furnace wall of lower hearth (6) is provided with lower furnace door (7).
2. biomass molding fuel boiler according to claim 1 is characterized in that: be provided with exhaust outlet (1) and delivery port (16) above boiler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820148966XU CN201289220Y (en) | 2008-09-03 | 2008-09-03 | Biomass molding fuel boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820148966XU CN201289220Y (en) | 2008-09-03 | 2008-09-03 | Biomass molding fuel boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201289220Y true CN201289220Y (en) | 2009-08-12 |
Family
ID=40980903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820148966XU Expired - Fee Related CN201289220Y (en) | 2008-09-03 | 2008-09-03 | Biomass molding fuel boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201289220Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106402844A (en) * | 2016-08-31 | 2017-02-15 | 吉林省日晟节能环保技术开发有限公司 | Efficient and energy-saving biomass gasification combustion boiler and application thereof |
-
2008
- 2008-09-03 CN CNU200820148966XU patent/CN201289220Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106402844A (en) * | 2016-08-31 | 2017-02-15 | 吉林省日晟节能环保技术开发有限公司 | Efficient and energy-saving biomass gasification combustion boiler and application thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090812 Termination date: 20100903 |