CN203273931U

CN203273931U - Combustion chamber for biomass fuel semi-gasification furnace

Info

Publication number: CN203273931U
Application number: CN 201320007231
Authority: CN
Inventors: 柳文
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-01-08
Filing date: 2013-01-08
Publication date: 2013-11-06
Anticipated expiration: 2023-01-08

Abstract

The utility model discloses a combustion chamber for a biomass fuel semi-gasification furnace. The combustion chamber comprises an inner cylinder and an outer cylinder, wherein a secondary oxygen supplying hole is formed on the upper part of a cylindrical wall of the inner cylinder, and a secondary oxygen supplying pipe is externally connected with the lower part of a cylindrical wall of the outer cylinder; and the lower part of the inner cylinder is internally connected with a strengthened oxygen supplying pipe net. The strengthened oxygen supplying pipe net inside the inner cylinder is used for leading secondary supplied oxygen in an outer cylinder clamping sleeve and an inner cylinder clamping sleeve into the inner cylinder, and the secondary supplied oxygen flows out from air dividing holes of an air inlet pipe and an air dividing pipe; the flow speed of combustible gas from a gasification furnace is reduced, and the movement direction of the gas is changed to uniformly mix oxygen in the gas with the combustible gas, so that the combustion is more complete; and on the other hand, the strengthened oxygen supplying pipe net enables the temperature of the secondary supplied oxygen to be raised so that gas combustion is easier to carry out and the gas combustion is more complete. Therefore, compared with the prior art, the combustion chamber disclosed by the utility model has the advantage of high fuel combustion rate, fuel conservation and no pollution to an environment.

Description

The combustion chamber that is used for the biomass fuel half-gasification oven

Technical field

The utility model relates to a kind of fuel stove, particularly a kind of combustion chamber of biomass fuel half-gasification oven.

Background technology

Half-gasification oven is minute upper and lower structure generally, the bottom is vaporizer, top is the combustion chamber, have some secondary oxygen supplys holes on the inner tube wall of combustion chamber, there is certain defect in the combustion chamber of this structure, concrete manifestation is as follows: from vaporizer is swiftly flowing fuel gas, behind the combustion chamber, contact with the secondary oxygen supply, burn, but because the combustion chamber just has aperture on inner tube wall, the secondary oxygen supply does not reach the center, combustion chamber, middle fuel gas can not fully burn, and the phenomenon of smoldering can appear in stove and accessory, the waste resource.When especially stove and accessory had just been lighted, because secondary oxygen supply temperature is not high, pressure was low, and gasification, and combustion is insufficient, and the phenomenon of smoldering is more obvious.

The utility model content

The purpose of this utility model is to provide a kind of secondary oxygen supply effect of improving, and improves the combustion chamber of fuel availability.

This combustion chamber for the biomass fuel half-gasification oven that the utility model provides, comprise inner cylinder and outer cylinder, secondary oxygen supply hole is arranged at the barrel top of inner cylinder, the barrel bottom of outer cylinder is circumscribed with the secondary oxygen supplying tube, is connected in the bottom of described inner cylinder and makes the uniform enhanced oxygen blowing pipe network of secondary oxygen supply.

Described enhanced oxygen blowing pipe network comprises the some air inlet pipe that are communicated with the chuck of described inside and outside cylinder formation, perhaps also comprises the some gas-distributing pipes that are connected with air inlet pipe, and a minute pore is all arranged on air inlet pipe and gas-distributing pipe.

Installing hole with described air inlet pipe coupling is arranged on the barrel of described inner cylinder.

The utility model imports the secondary oxygen supply in outer cylinder and inner cylinder chuck in inner cylinder by the enhanced oxygen blowing pipe network of inner cylinder inside, flow out minute pore of secondary oxygen supply on air inlet pipe and gas-distributing pipe, reduction is from the flow velocity of the next fuel gas of vaporizer, change the direction of motion of gas, oxygen in gas is evenly mixed with fuel gas, thereby make burning more complete; On the other hand, the enhanced oxygen blowing pipe network makes the temperature of secondary oxygen supply raise, and gasification, and combustion more easily carries out like this, and gasification, and combustion is also more abundant.So the utility model is compared with prior art, has the advantage of the high fuel savings of fuel firing rate, environmentally safe.

Description of drawings

Fig. 1 is that the master of a kind of preferred embodiment of the present utility model looks the sectional structure schematic diagram.

Fig. 2 is a kind of cross-sectional schematic of A-A in Fig. 1.

Fig. 3 is the another kind of cross-sectional schematic of A-A in Fig. 1.

The specific embodiment

Preferred embodiment one, as shown in Figure 1 and Figure 2, this combustion chamber for the biomass fuel half-gasification oven that the utility model provides, comprise inner cylinder 1 and outer cylinder 2, secondary oxygen supply hole 11 is arranged at the barrel top of inner cylinder 1, the barrel bottom of outer cylinder 2 is circumscribed with secondary oxygen supplying tube 3, is connected to enhanced oxygen blowing pipe network 4 in the bottom of inner cylinder 1.Enhanced oxygen blowing pipe network 4 comprises air inlet pipe 41 and the symmetrical gas-distributing pipe 42 that is connected on air inlet pipe 41 that is communicated with the chuck of inner cylinder 1 and outer cylinder 2 formation, on air inlet pipe 41 and gas-distributing pipe 42, minute pore 43 is arranged all.Air inlet pipe 41 is positioned on the diameter of transversal periphery of inner cylinder 1, and arranged crosswise has the installing hole with air inlet pipe 41 couplings on the barrel of inner cylinder 1.

Preferred embodiment two, as shown in Figure 3, Figure 4, the inside and outside circle barrel structure of this kind combustion chamber is with embodiment one,

The air inlet pipe 41 of enhanced oxygen blowing pipe network 4 is arranged in parallel on the transversal periphery of inner cylinder 1, can arrange an air inlet pipe 41 on diameter, other air inlet pipe 41 is arranged symmetrically with about this root air inlet pipe 41 on diameter, all vertically be connected with gas-distributing pipe 42 on every air inlet pipe 41, on air inlet pipe 41 and gas-distributing pipe 42, minute pore 43 arranged all.

The quantity of the air inlet pipe of above-mentioned two kinds of embodiment and gas-distributing pipe and minute pore and position are determined according to the actual needs of combustion furnace.

Operation principle is as follows: the enhanced oxygen blowing pipe network that increases in inner cylinder has increased the oxygen in the combustion chamber and has supplied with uniformity, has especially improved the burning condition of the axial zone line of inner cylinder, thereby has made burning more abundant.

Claims

1. combustion chamber that is used for the biomass fuel half-gasification oven, comprise inner cylinder and outer cylinder, secondary oxygen supply hole is arranged at the barrel top of inner cylinder, the barrel bottom of outer cylinder is circumscribed with the secondary oxygen supplying tube, it is characterized in that: be connected in the bottom of described inner cylinder and make the uniform enhanced oxygen blowing pipe network of secondary oxygen supply.

2. the combustion chamber for the biomass fuel half-gasification oven as claimed in claim 1, it is characterized in that: described enhanced oxygen blowing pipe network comprises the some air inlet pipe that are communicated with the chuck of described inside and outside cylinder formation, perhaps also comprise the some gas-distributing pipes that are connected with air inlet pipe, a minute pore is all arranged on air inlet pipe and gas-distributing pipe.

3. the combustion chamber for the biomass fuel half-gasification oven as claimed in claim 2, is characterized in that: the installing hole with described air inlet pipe coupling is arranged on the barrel of described inner cylinder.