CN201593810U

CN201593810U - Furnace chamber of biomass-fuel gasifying-combustion domestic furnace

Info

Publication number: CN201593810U
Application number: CN2009200867266U
Authority: CN
Inventors: 陈文�; 戴增嗣
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-06-19
Filing date: 2009-06-19
Publication date: 2010-09-29
Anticipated expiration: 2019-06-19

Abstract

The utility model relates to a furnace chamber of a biomass-fuel gasifying-combustion domestic furnace. The technical scheme is that a furnace wall and a furnace grate of the furnace chamber are integrated, the furnace grate used for loading firewoods and leaking ashes is arranged at the bottom of the furnace wall, a secondary air port used for controlling combustion is formed at the upper part of the furnace wall, and a fuel door used for adding fuels is formed on the side wall of the furnace wall. When necessary, heat-insulating tiles surrounds and are fixed on the outer wall of the furnace chamber, or a heat reflection screen is integrated with the furnace chamber and surrounds the outer wall of the furnace chamber, or the heat reflection screen surrounds and is fixed on the outer wall of the furnace chamber. When the furnace chamber is in operation, the biomass fuel is foisted into the furnace wall and on the furnace grate from the fuel door; the pilot fuel is ignited above the furnace grate, and the air output of the furnace grate is reduced after the biomass fuel is ignited, so as to conduct the oxygen-poor combustion and produce the fuel gas; the fuel gas burns at a furnace chamber mouth under the perturbation action and the combustion-supporting action of the air penetrated from the secondary air hole; and when the air production of the fuel is finished, a primary air door is adjusted to make charred coals continuously burn until burning out. The furnace has the characteristics of integration of gasification and combustion, one-step incineration of the volatiles and the charred coals.

Description

The burner hearth of biomass fuel gasifying burning cooking stove

Affiliated technical field

The utility model relates to the household solid-fuel furnace kitchen range, biomass fuel gasifying burning home furnace particularly, the burner hearth parts of especially described cooking stove.

Background technology

Vast farmers and Lin worker, always heating is gathered materials on the spot, cooked to custom; The household kitchen range of research biomass fuel, for saving faggot, protection forestry, developing agricultural, purification room, protection environment, saving fossil energy, significant.

The volatile matter of low heat value biomass fuel accounts for 70% greatly, coke accounts for 30% greatly, carries out gasification and combustion integrative, burnout volatile matter and coke, is the basic outlet that improves fuel efficiency, minimizing soot emissions.

Gasification is a burner hearth with the core component of combustion integrative.The disclosed burner hearth of CN201032185Y, separate with fire grate its furnace wall, and heat reflection screen and fire grate zoarium have enlarged the scope of radiation heat transfer and heat conduction, have reduced the cooking efficient and the gasification result of fuel; Secondary wind passes between hearth wall and heat reflection screen, has caused heat convection, has further reduced the cooking efficient and the gasification result of fuel.Furnace temperature is lowered, and heat is dissipated, and is the subject matter of this burner hearth.

Summary of the invention

In order to improve furnace temperature, reduce hear rate, the utility model provides a kind of simple, burner hearth of adapting to.

The technical scheme that its technical problem that solves the utility model adopts is: establish a kind of burner hearth of biomass fuel gasifying burning cooking stove, furnace wall and fire grate are one.The bottom of furnace wall has fire grate to hold bavin leakage ash, and secondary air hole control burning is arranged at top, and sidewall has fuel door to add fuel.In case of necessity, establish the heat insulation tile encirclement and be fixed on hearth outer wall, expose secondary air hole; Perhaps establish heat reflection screen and burner hearth and constitute one, and surround hearth outer wall, expose secondary air hole; Perhaps establish the encirclement of heat reflection screen and be fixed on hearth outer wall, expose secondary air hole.

The operation principle of the utility model burner hearth is: biomass fuel through fuel door fill in the furnace wall, on the fire grate; Above fire grate, light pilot fuel, after biomass fuel is ignited, reduce fire grate and make it anoxycausis, produce fuel gas to air quantity; Fuel gas burns by the perturbation action and the combustion-supporting stockhole that acts on of the air that secondary air hole advances thoroughly; When treating that living beings fuel aerogenesis finishes, increase fire grate and coke is burnt away, until after-flame to air quantity.

The beneficial effect of the utility model burner hearth is: furnace wall and fire grate are integrally manufactured, meet the combination principle of high-temperature component; Can reduce heat and dissipate, improve fire box temperature, strengthen gasification and effect of combustion; Also simplify chamber structure, reduced manufacturing expense.

The structure and the operation principle of burner hearth show, the utility model burner hearth, and the volatile matter that burns earlier, the after-combustion coke, perhaps alternate combustion has realized gasification and combustion integrative, and fuel-efficient rate and flue dust low emission.

Description of drawings

Fig. 1 burner hearth profile axonometric drawing

Fig. 2 burner hearth dissects axonometric drawing

The burner hearth profile axonometric drawing that Fig. 3 heat reflection screen surrounds

The burner hearth that Fig. 4 heat reflection screen surrounds dissects axonometric drawing

The burner hearth profile axonometric drawing that Fig. 5 heat insulation tile surrounds

The burner hearth that Fig. 6 heat insulation tile surrounds dissects axonometric drawing

The explosive view of the burner hearth that Fig. 7 heat insulation tile surrounds

Sequence number among the figure: 1. 6. heat reflections of furnace wall 2. fire grates 3. fuel doors 4. secondary air holes 5. heat insulation tiles are shielded

The specific embodiment

In embodiment illustrated in figures 1 and 2, belong to furnace wall (1) and fire grate (2) is the burner hearth of one.The bottom of furnace wall (1) is fire grate (2), and secondary air hole (4) is arranged at top, and there is fuel door (3) side.Secondary air hole (4) is that a row or two rows or three rows are uniform, and aperture and hole count are determined according to the 30%-70% of fuel combustion blast consumption.

In Fig. 3 and embodiment shown in Figure 4, belonging to furnace wall (1), fire grate (2) and heat reflection screen (6) is the burner hearth of one.The bottom of furnace wall (1) is fire grate (2), and secondary air hole (4) is arranged at top, and there is fuel door (3) side.Secondary air hole (4) is that a row or two rows or three rows are uniform, and aperture and hole count are determined according to the 30%-70% of fuel combustion blast consumption.Heat reflection screen (6) surrounds hearth outer wall, and exposes secondary air hole (4).Between heat reflection screen (6) and hearth outer wall, can fill insulant material, strengthen heat-insulating property.

In Fig. 5, Fig. 6 and embodiment shown in Figure 7, belong to furnace wall (1) and fire grate (3) is the burner hearth of one, additional heat insulation tile (5).The bottom of furnace wall (1) is fire grate (2), and secondary air hole (4) is arranged at top, and there is fuel door (3) side.Secondary air hole (4) is that a row or two rows or three rows are uniform, and aperture and hole count are determined according to the 30%-70% of fuel combustion blast consumption.Heat insulation tile (5) surrounds and is fixed on hearth outer wall, exposes secondary air hole (4).The fixed form of heat insulation tile (5) can be that riveted joint or bolt connect.Available mineral wool of heat insulation tile (5) or pottery are made.Secondary air hole can also be that two rows or three arrange the uniform hole that is staggered.

Claims

1. the burner hearth of a biomass fuel gasifying burning cooking stove comprises furnace wall and fire grate, and it is characterized in that: the bottom of furnace wall is a fire grate, and secondary air hole is arranged at top, and there is fuel door the side; Furnace wall and fire grate are one.

2. burner hearth according to claim 1 is characterized in that: secondary air hole is the uniform hole of a row.

3. burner hearth according to claim 1 is characterized in that: secondary air hole is the two row uniform holes that are staggered.

4. burner hearth according to claim 1 is characterized in that: secondary air hole is the three row uniform holes that are staggered.

5. according to claim 1,2,3 or 4 described burner hearths, it is characterized in that: the heat insulation tile encirclement is arranged and be fixed on hearth outer wall, expose secondary air hole.

6. according to claim 1,2,3 or 4 described burner hearths, it is characterized in that: the encirclement of heat reflection screen is arranged and be fixed on hearth outer wall, expose secondary air hole.

7. according to claim 1,2,3 or 4 described burner hearths, it is characterized in that: heat reflection screen and burner hearth constitute one, and surround hearth outer wall, expose secondary air hole.

8. burner hearth according to claim 6 is characterized in that: between heat reflection screen and the hearth outer wall insulation material is arranged.

9. burner hearth according to claim 7 is characterized in that: between heat reflection screen and the hearth outer wall insulation material is arranged.