CN2254518Y

CN2254518Y - Catalytic gas stove

Info

Publication number: CN2254518Y
Application number: CN 95235425
Authority: CN
Inventors: 李储明
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-12-29
Filing date: 1995-12-29
Publication date: 1997-05-21
Anticipated expiration: 2005-12-29

Abstract

The utility model relates to a gas range which is particularly suitable for liquefied petroleum gas combustion. The utility model is provided with a range head composed of a gas inlet pipe, a mixing pipe and a mixing chamber, wherein, the gas inlet pipe is a conical through pipe of which the big end exactly faces a gas nozzle port, the mixing pipe is a long conical through pipe of which the small end is connected with the small end of the gas inlet pipe, and the big end of the long conical through pipe is a downwards inclined opening, penetrates through the side wall of the mixing chamber, is connected with the other side wall of the mixing chamber, and is supported on the mixing chamber in a sealing mode. The jointing position of the bottom face and the side face of the mixing chamber is in a rotating arc shape of which the upper part is provided with a temperature catalysis resisting ceramic plate on which a plurality of rows of small square through holes are distributed uniformly.

Description

A kind of catalysis gas-cooker

The utility model relates to a kind of gas-cooker, especially is applicable to the burning of liquefied petroleum gas.

At present, common gas-cooker great majority are to adopt liquefied petroleum gas, burn under air nature supply conditions, and it is simple in structure, uses inconvenience, and hot benefit only can reach 40-50%, and it is excessive to produce CO content.Also have a kind of comparatively advanced as the combustion gas catalytic combustion kitchen range shown in the China Patent No. 92202964.4, though the raising thermal efficiency, save combustion gas, carbon monoxide also reduces, but because its air inlet pipe and the mixing tube side's of being taper siphunculus all are unfavorable for the abundant mixing of air and combustion gas, and make trouble, mixing chamber bottom surface and side are right angle or obtuse angle, and combustion gas can not fully be mixed in mixing chamber.

The purpose of this utility model is to improve its existing shortcoming on the basis of existing combustion gas catalytic combustion kitchen range, and provide a kind ofly can make combustion gas fully mix back completing combustion, reduce carbon monoxide content greatly, improve the catalysis gas-cooker of ignition temperature.

The utility model includes the burning nozzle, air inlet pipe, the mixing tube that is connected with air inlet pipe, support the mixing chamber of mixing tube, and the kitchen range that is contained in the heatproof catalytic ceramics plate formation of mixing chamber end face, it is characterized in that described air inlet pipe is the taper siphunculus, big rectifying facing to the combustion gas nozzle chews mouth, mixing tube is long taper siphunculus, small end is connected with the small end of air inlet pipe, after passing mixing chamber one sidewall, big end is connected on another sidewall of mixing chamber, and the sealing be supported on the mixing chamber, the big end of mixing tube is the inclined downward opening, the bottom surface of mixing chamber and unilateral copulation place are rotation garden arc, heatproof catalytic ceramics plate is housed above, evenly distributed several rows of little square tube hole is arranged on the ceramic wafer.

The utility model has adopted the mixing tube of taper air inlet pipe and long taper, and mixing chamber bottom surface and side are rotation garden arc, it on the ceramic wafer evenly distributed several rows of little square tube hole, thereby combustion gas is more fully mixed, improved the thermal efficiency, the content of carbon monoxide also significantly reduces, and has solved the worry at the bottom of the black-cooking pot.

The utility model is described in further detail below in conjunction with drawings and Examples.

Fig. 1 is the utility model longitudinal sectional view;

Fig. 2 is a left kitchen range front view of the present utility model;

Fig. 3 removes the vertical view of ceramic wafer for left kitchen range of the present utility model;

Fig. 4 is the front view of right kitchen range of the present utility model;

Fig. 5 removes the vertical view of ceramic wafer for the right kitchen range of the utility model.

Among the figure: 1 combustion gas nozzle, 2 air inlet pipe, 3 mixing tubes, 4 mixing chambers, 5 heatproof catalytic ceramics plates.

Kitchen range shown in the accompanying drawing is by air inlet pipe (2), mixing tube (3) and mixing chamber (4) three parts are integrally welded, air inlet pipe (2) outside diameter is 45mm, face combustion gas nozzle (1) and chew mouth, the front end of nozzle (1) puts in air inlet pipe (2) large end face 6mm, the end diameter of air inlet pipe (2) is 24mm, its length is the cone siphunculus of 38mm, the long 180mm of being of mixing chamber (3) bores siphunculus in long garden, small end links to each other with the small end of air inlet pipe (2), after passing mixing chamber (4) one sidewalls, big end is connected on another sidewall of mixing chamber (4), and sealing is supported on the mixing chamber (4), the big end of mixing tube (3) be downward-sloping be 20 ° of inclined-plane openings, the bottom surface of mixing chamber (4) and unilateral copulation place are rotation garden arc, its garden arc radius is 7mm, mixing chamber (4) is the bottom sealing, the step garden post of open-top is simplified, on mixing chamber (4) top stage, heatproof catalytic ceramics plate (5) is housed, be distributed with evenly distributed several rows of little square tube hole on the ceramic wafer (5), on the limit of each aperture 1.1mm, 300 holes per square inch, 1500 ℃ of ceramic wafer (5) heatproofs.Left side kitchen range is the same with right kitchen range planform.

Combustion process of the present utility model is: when opening combustion gas nozzle (1), combustion gas immediately and air carry out mixed flow at the big end of air inlet pipe (2), because it is reasonable in design, do not need to adjust air door, the combustion gas nozzle puts in the big end 6mm of air inlet pipe and immobilizes, combustion gas is carried out mixing the first time at mixing tube (3) through air inlet pipe (2) with air, continuous expansion along with mixing tube (3) cross section, gaseous mixture strengthens mixing gradually, under the effect of mixing chamber (4) sidewall, be screwed into mixing chamber bottom under the gaseous mixture again by the square hole heatproof ceramic wafer (5) at rotation direction top, bottom, obtaining secondary mixes, gas is swirling eddy, plays positive role for fully burning, because the area of the small square hole design space of arranging on the heatproof ceramic wafer is reasonable, gaseous mixture flows out end face after the ignition igniting is being drawn, draw back kitchen range face and be the nonflame state, becoming a slice crimson after one minute, 1350 ℃ of its combustion zone temperature.

Because sufficient combustion, carbon monoxide content reduces greatly in the waste gas of burning back, and the thermal efficiency improves greatly.

The utility model is detected according to national standard " CJ4-83 " by Shandong Prov. Products Quality Supervisory Inspection Office, and the key technical indexes is as follows: and CO content＜0.005% in the waste gas (GB＜0.05%) thermal efficiency＞67.5% (GB＞55%) thermic load 11.49MJ/h (GB 10.5MJ/h＜thermic load＜14.6MJ/h)

Claims

1, a kind of catalysis gas-cooker, include combustion gas nozzle (1), air inlet pipe (2), the mixing tube (3) that is connected with air inlet pipe (2), support the mixing chamber (4) of mixing tube (3), and the kitchen range that is contained in heatproof catalytic ceramics plate (5) formation of mixing chamber (4) end face, it is characterized in that described air inlet pipe (2) is the taper siphunculus, big end is chewed mouth facing to combustion gas nozzle (1), mixing tube (3) is long taper siphunculus, small end is connected with the small end of air inlet pipe (2), after passing mixing chamber (4) one sidewalls, big end is connected on another sidewall of mixing chamber (4), and sealing is supported on the mixing chamber (4), the big end of mixing tube (3) is the inclined downward opening in mixing chamber (4), the bottom surface of mixing chamber (4) and unilateral copulation place are rotation garden arc, heatproof catalytic ceramics plate (5) is equipped with on top, and evenly distributed several rows of little square tube hole is arranged on the ceramic wafer (5).

2, catalysis gas-cooker according to claim 1 is characterized in that mixing chamber (4) bottom surface and unilateral copulation place rotation garden arc radius is 4-10mm.

3, catalysis gas-cooker according to claim 1, the gradient that it is characterized in that the big end opening of mixing tube (3) is 20 °.

4, catalysis gas-cooker according to claim 1 is characterized in that the front end of combustion gas nozzle (1) puts in air inlet pipe (2) large end face 4-6mm.

5, catalysis gas-cooker according to claim 1 is characterized in that the square hole length of side on the heatproof catalytic ceramics plate (5) is 1-1.3mm.

6, catalysis gas-cooker according to claim 1 is characterized in that the square hole on the heatproof ceramic catalytic plate (5) is hole, 300 holes-400 per square inch.