CN201416906Y

CN201416906Y - High-efficiency biomass fuels combustion furnace

Info

Publication number: CN201416906Y
Application number: CN2009201725474U
Authority: CN
Inventors: 叶林森
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-06-10
Filing date: 2009-06-10
Publication date: 2010-03-03
Anticipated expiration: 2019-06-10

Abstract

The present utility model provides a high-efficiency biomass fuels combustion furnace. The lower part of the furnace shell is opened with an air inlet, a grate is fixed in the furnace shell over the air inlet, a furnace core is positioned on the grate, there is a gap between the furnace core and the furnace shell for communicating with the air inlet, the furnace core is connected with a feeding pipe extending out of the furnace shell, the upper end of the furnace shell is connected with a furnace platform having a mouth, the side part of the furnace platform is opened with a smoke outlet, a combustor is positioned in the furnace platform over the furnace core, the cross section of the cavity of the combustor becomes smaller from the bottom to the top, and the cavity of the combustor opposites to the furnace core, a fire blocking ring is around the outside of the combustor. By adopting the high-efficiency biomass fuels combustion furnace which has a simple and reasonable structure, sufficient combustion of biomass fuels can be realized with little smoke generated, therefore, the combustion furnace is an ideal energy-saving and high-efficiency biomass fuels combustion furnace.

Description

The efficient biomass fuel-fired furnace

Technical field

The utility model relates to a kind of biomass fuel combustion stove.

Background technology

Day by day in short supply along with mineral matter fuel sources such as coal, oil, gas, living beings (straw in the branch of plant, bar, the crops etc.) resource that acts as a fuel is paid attention to by people gradually.Biomass fuel is a renewable resource, and it is inexhaustible, is the using energy source developing direction of generally acknowledging at present.More existing biomass fuel combustion stoves are half-gasification oven basically, such half-gasification oven has higher requirement to the shape or the size of biomass fuel, promptly require the biomass fuel palpus through after being reprocessed into piece, section, just can be used for burning, the reprocessing of biomass fuel, can strengthen use cost, in addition, prior biological matter fuel gas is partly changed stove and is also existed complicated, deficiencies such as cost is higher, maintenance difficult on the structure.For traditional firewood stove of building by laying bricks or stones, though some biomass fuels that can directly burn, deficiencies such as the thermal efficiency is low, incomplete combustion, over-emitting black exhaust that it exists.Along with the improvement of people to the biomass fuel combustion stove, the existing at present combustion furnace that must not reprocess biomass fuel, this combustion furnace effect in use is better, but structure is complicated, cost is higher.

The utility model content

The purpose of this utility model is to provide a kind of efficient biomass fuel-fired furnace, and it is simple in structure, and combustion efficiency is good.

For achieving the above object, the utility model adopts following scheme: the efficient biomass fuel-fired furnace, the bottom of furnace shell has air inlet, the upper fixed that is positioned at air inlet in furnace shell has fire grate, the combustion chamber of having taken a seat on the fire grate, the space that has between combustion chamber and furnace shell communicates with air inlet, the feed pipe that is connected on the combustion chamber stretches out furnace shell, the upper end of furnace shell is connected with table, the table upper end has fire door, sidepiece has exhaust opening, and the place, top that is positioned at combustion chamber in the table is provided with a burner, and the cross section of the cavity of burner reduces from the bottom to top gradually, and the cavity of burner is with a firestopping ring facing to combustion chamber in the outside of burner.

By such scheme as seen, the efficient biomass fuel-fired furnace that the utility model provides in use, the wind that is entered by air inlet can enter into combustion chamber first, to realizing air feed in it, and also can be by the air feed in burner of the space between combustion chamber and furnace shell, in the combustion chamber burned flame and imperfect combustion flue gas and converge in burner by the wind that the space between combustion chamber and furnace shell enters after, can in burner, further fully burn, and then can improve combustion efficiency, and the formation of minimizing flue dust, in addition, because the cross section of the cavity of burner reduces from the bottom to top gradually, the duration and degree of heating of the flame of discharging from the burner upper port is more concentrated.

The utility model is simple and reasonable for structure, and it can realize burning more fully to biomass fuel, and the flue dust that is produced is little, is a kind of desirable energy-conservation, efficient biomass fuel-fired furnace.

Description of drawings

The structural representation of Fig. 1 the utility model embodiment one;

The left view of Fig. 2 Fig. 1;

The structure chart of fire grate among Fig. 3 Fig. 1;

The A-A cutaway view of Fig. 4 Fig. 3;

The structural representation of Fig. 5 the utility model embodiment two;

The structural representation of Fig. 6 the utility model embodiment three;

The structure chart of fire baffle disk among Fig. 7 Fig. 6.

The specific embodiment

Further specify the utility model below in conjunction with embodiment and accompanying drawing.

Referring to Fig. 1

The bottom of furnace shell 1 has air inlet 4, and the upper fixed that is positioned at air inlet 4 in furnace shell 1 has fire grate 3.The combustion chamber 2 of having taken a seat on the

fire grate

3,1 space that has 5 of combustion chamber 2 and furnace shell communicates with air inlet 4, and the feed pipe 6 that is connected on the combustion chamber 2 stretches out furnace shell 1.The upper end of furnace shell 1 is connected with table 11, and the table upper end has fire door 15, sidepiece has exhaust opening 16, and fire door 15 places are provided with a converter mouth ring 12 and a ring 13.The place, top that is positioned at combustion chamber 2 in the table 11 is provided with a burner 14, and the cross section of the cavity 14a of burner 14 reduces from the bottom to top gradually, and the cavity of burner 14 is with a firestopping ring 17 facing to combustion chamber 2 in the outside of burner 14.In the present embodiment, table 11 is connected as a single entity with furnace shell 1, and burner 14 is fixed on the table 11.In addition, the efficient biomass fuel-fired furnace that the utility model provides also be equipped with one with the baffle plate that cooperates 9 of feed pipe 6, on baffle plate 9, be connected with a handle 8.As shown in Figure 1, after 9 plates seal feed pipe 6 by retaining, can avoid flue gas to emerge, and can make the flame in the combustion chamber 3 more prosperous from feed pipe 6.When needing to add fuel, baffle plate 9 can be removed.In addition, have plural fresh air inlet 1a in the bottom of furnace shell 1.The setting of fresh air inlet 1a can make the air intake in the combustion chamber 2 more sufficient, even.

Referring to Fig. 1, Fig. 2

Port at feed pipe 6 is hinged with a charging spout 7, and the front portion of charging spout 7 is mounted with pull bar 10, and the outside of the upper end of pull bar 10 and table 11 articulates.Can in combustion chamber 2, add fuel easily by charging spout 7.

Referring to Fig. 3, Fig. 4

Edge, the outside at fire grate 3 circumferentially has some pole 3a, has some groove 3c on the fire grate 3, is fixed with some block 3b on the upper surface of fire grate 3.

In conjunction with Fig. 1, Fig. 3, Fig. 4 as seen, fire grate 3 is fixing by pole 3a on it and furnace shell 1, and the combustion chamber 2 that is landed on the fire grate 3 is spacing by block 3b.

Referring to Fig. 5

The difference part of the combustion furnace of present embodiment and embodiment one is: firestopping ring 18 is connected as a single entity with furnace shell 1, and burner 14 is fixed on the firestopping ring 18, and table 19 is connected with the upper end of body of heater 1, is provided with two rings 20 at fire door 15 places.Both differences are that the latter is fit to place the bigger cooker of diameter.

Referring to Fig. 6

Originally executing the combustion furnace of example and the difference part of embodiment one is: the upper port at combustion chamber 2 is provided with a fire baffle disk 24, and the bottom of fire baffle disk 24 is taper, and the edge of fire baffle disk 24 is connected with pole 23, and pole 23 is landed in the upper end of combustion chamber 2.After flame in the combustion chamber 2 and flue gas flow out from fire baffle disk 24 outsides, can with the air-flow better mixing in the space 5; Burner 22 shapes also with embodiment one in burner slightly different.In addition, as seen from Figure 6, present embodiment is suitable for big mouthful of pot 21.

Referring to Fig. 7

The edge of fire baffle disk 24 is connected with three poles 23, and pole 23 is an one with fire baffle disk 24, and pole is along the circumferentially equal portion of fire baffle disk 24.

Claims

1, the efficient biomass fuel-fired furnace, the bottom of furnace shell has air inlet, the upper fixed that is positioned at air inlet in furnace shell has fire grate, the combustion chamber of having taken a seat on the fire grate, the space that has between combustion chamber and furnace shell communicates with air inlet, the feed pipe that is connected on the combustion chamber stretches out furnace shell, the upper end of furnace shell is connected with table, the table upper end has fire door, sidepiece has exhaust opening, it is characterized in that: the place, top that is positioned at combustion chamber in the table is provided with a burner, the cross section of the cavity of burner reduces from the bottom to top gradually, and the cavity of burner is with a firestopping ring facing to combustion chamber in the outside of burner.

2, efficient biomass fuel-fired furnace according to claim 1 is characterized in that: it is equipped with a baffle plate that cooperates with feed pipe, is connected with a handle on baffle plate.

3, efficient biomass fuel-fired furnace according to claim 1 is characterized in that: the port at feed pipe is hinged with a charging spout, and the front portion of charging spout is mounted with pull bar, and the upper end of pull bar and the outside of table articulate.

4, efficient biomass fuel-fired furnace according to claim 1 is characterized in that: have plural fresh air inlet in the bottom of furnace shell.

5, efficient biomass fuel-fired furnace according to claim 1, it is characterized in that: table and furnace shell are connected as a single entity, and burner is fixed on the table.

6, efficient biomass fuel-fired furnace according to claim 1, it is characterized in that: firestopping ring and furnace shell are connected as a single entity, and burner is fixed on the firestopping ring.

7, efficient biomass fuel-fired furnace according to claim 1 is characterized in that: the upper port at combustion chamber is provided with a fire baffle disk, and the edge of fire baffle disk is connected with pole, and pole is landed in the upper end of combustion chamber.