CN2097356U

CN2097356U - Rural household range utilizing biological gasification

Info

Publication number: CN2097356U
Application number: CN 91219673
Authority: CN
Inventors: 高先声; 杨安; 王印复
Original assignee: Chinese Academy of Agricultural Mechanization Sciences
Current assignee: Chinese Academy of Agricultural Mechanization Sciences
Priority date: 1991-08-09
Filing date: 1991-08-09
Publication date: 1992-02-26

Abstract

The utility model relates to a rural household range utilizing biological gasification, belonging to the technology of energy source developing and utilizing in rural areas. The utility model comprises a gasifying furnace, a burning range and a blower, wherein, an inverted conical refractory lining which is thick at the upper part and thin at the lower part is arranged in the reaction chamber (3) of the gasifying furnace, the refractory lining is provided with 8-12 tuyeres, and a heat-insulating layer is sheathed outside a furnace body. The utility model has the advantages of complete combustion, strong fire, sustained and stable operation for a long time, adjustable load, convenient operation, wide purpose, high heat efficiency which is increased 2 to 3 times, etc.

Description

Rural Household range utilizing biological gasification

The utility model belongs to rural area domestic biomass gasification stove kitchen range, is the rural energy evaluation and exploration technology.

At present, the structure of traditional farmers''s cooking stove is to adopt directly burning mode of heating, and this cooking stove is incomplete combustions all generally, and oil smoke is big, and temperature rise is slow, and a little less than the firepower, furnace temperature is low, can not be continual and steady, and efficiency of combustion is low, and only 10～5%.

The purpose of this utility model is, adopt a kind of novel cooking range structure, it can make the agriculture and forestry residue, is difficult for fuel as straw, stalk an aromatic plant metioned in ancient books, leaf etc. and produces fuel gas-coal gas by burning, coal gas is undertaken that cooking is used etc. by special stove then, thereby has solved above-mentioned weak point.

The utility model is to realize like this, a kind of rural area domestic biomass gasification stove kitchen range, include gasification furnace, burning kitchen range and air blast, wherein, in the reative cell in gasification furnace, be mounted with upper coarse and lower fine inverted cone fireproof casing, on fireproof casing, have equally distributed 8～10 tuyeres, heat-insulation layer is housed outside body of heater.After air blasts gasification reactor chamber by air blast, carry out the imperfect combustion reaction with the living beings organic materials, the heat that reaction generates is carried out thermal decomposition to material around the tuyere of combustion zone, form the intermidate oxide carbon monoxide because of carbon (C) molecule can not get enough oxygen; Hydrone produces combustible gas-hydrogen because of decomposes in the material, and the two constitutes the main component of coal gas.

Further specify below in conjunction with accompanying drawing:

Fig. 1. the structural representation of gasification furnace.

Fig. 2. the kitchen range schematic diagram.

Fig. 3. the A-A cut-away view of Fig. 1.

See Fig. 1,3(1) passage, (2) tuyere, (3) gasification reactor chamber, (4) reducing, (5) Bunker, (6) fireproof casing, (7) grate, (8) ash discharging chamber, (9) gas exit, (10) bell, (11) heat-insulation layer, (12) ashpit.

In the described gasification reactor chamber (3), the last planar diameter D of fireproof casing (6) is 1.2～2.2 with the ratio of bottom surface diameter d, the ratio of the height H of bottom surface diameter d and lining (16) is 0.3～0.8, can reach required reaction temperature in that gasification reaction is indoor like this, make gasification reaction stable, mobility is high.In addition, fireproof casing (6) can prevent that the pyroreaction layer from melting the burning of metal material.After material added Bunker (5) by bell (10), certain giving under the hot temperature, material participated in the chemical reaction in the stove, produces coal gas; Reaction residue enters ash discharging chamber (8) by grate (7), and coal gas exports kitchen range to through outlet (9).

Described kitchen range (13) give the mixed type (see figure 2) for the low pressure air suspended type, adopt the secondary air distribution, coal gas advances surge chamber (15) from inlet tube (14), air gives with left and right sides two-way coal gas respectively through threeway (17) from passage (16) and mixing, enter orifice-plate type diffusion burner (18), introduce auxiliary air herein, these kitchen range adopt big spray orifice air to give mixing burner, and air valve (19) is regulated the fire size with control coal gas amount.

Gasification furnace of the present utility model is the square-outside and round-inside type, be round in the stove promptly, and the external form of stove is a square, is convenient to like this lay, and is easily reinforced, simultaneously elegant in appearance again.

The utility model has the advantages that:

(1) thermal efficiency height is one to two times on traditional cooking stove.

(2) coal gas can burn fully, clean smokeless.

(3) combustion intensity is big, the temperature height.

(4) air feed is continual and steady, can move automatically.

(5) the firepower load can be regulated, and two kitchen ranges are fit to the requirement of the different cooking methods of family to heating power.

Claims

1, a kind of domestic biomass gasification stove kitchen range, it is characterized in that, this cooking stove includes gasification furnace, burning kitchen range and air blast, wherein in the reative cell in gasification furnace (3), be mounted with upper coarse and lower fine inverted cone fireproof casing (6), have 8～10 tuyeres (2) on fireproof casing (6), body of heater is equipped with heat-insulation layer (11) outward.

2, by the described cooking stove of claim 1, it is characterized in that: the last planar diameter D of fireproof casing (6) is 1.2～2.2 with the ratio of bottom surface diameter d, and simultaneously, the ratio of the height H of bottom surface diameter d and lining (6) is 0.30～0.80.

3, by claim 1,2 described cooking stoves, it is characterized in that: gasification furnace is the square-outside and round-inside type.

By claim 1,2 described cooking stoves, it is characterized in that 4, the burning kitchen range give mixed type burning kitchen range for the low pressure air suspended type.