JPH0533843Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a stove device for home or business use.

(Prior Art) In the conventional stove device shown in Fig. 1, the flame generated by the burner heats a heating plate made of iron plate or heat-resistant glass, etc., and cooks the food in the pot etc. of the plate. This is the configuration to do it.

(Problems with the Prior Art) Such conventional stove devices have the disadvantage of heating not only the heating plate directly above the burner, but also the surrounding area.In order to eliminate this disadvantage, there is a means to move the burner close to the heating plate. However, in that case, there was a problem in that incomplete combustion occurred and CO was generated. The present invention provides a stove device that eliminates such conventional problems, further improves heating efficiency, stabilizes combustion, and promotes oxidation reaction.

(Means for solving the problem) A burner is installed in a heating chamber, and a catalyst peripheral wall is provided around the burner, the opening area of which increases as it goes upward, and the combustion chamber is surrounded by the catalyst wall. The catalyst peripheral wall is configured in the upper part of the burner, and
A stove device whose overall height is slightly lower, a combustion gas outlet is provided between the upper heating chamber wall, and a heating plate on which cooking utensils such as pots are placed is installed at the upper part of the combustion chamber. It is.

(Function) The flame generated in the combustion chamber is prevented from spreading by the catalyst surrounding wall and directly heats the heating plate. Therefore, the area around the heating plate is not overheated and the catalyst surrounding wall is heated at the same time, but since the catalyst surrounding wall is also a highly radiant body, radiant heat is applied to the heating plate to further heat the heating plate. Such radiant heat can be further improved by increasing the opening area of the catalyst peripheral wall toward the top. In this case, due to the presence of the combustion gas outflow section, the combustion gas flow is formed along the bottom surface of the heating plate, which further promotes convective heating and allows effective heat transfer. Since the flow rate of the combustion gas flowing through the section increases, the heating efficiency can be further improved.

Furthermore, since the combustion chamber is surrounded by the catalyst peripheral wall, the oxidation reaction is promoted and the flame within the combustion chamber can be significantly stabilized.

(Example) Reference numeral 1 is a heating chamber, and 2 is a burner installed within the heating chamber 1. On the outer periphery of the burner 2,
A catalyst peripheral wall 3 whose opening area increases as it goes upward is provided, and a combustion chamber 10 surrounded by the catalyst peripheral wall 3 is constructed above the burner 2, and the catalyst peripheral wall 3 has a total height of A combustion gas outlet 4 is provided between the combustion chamber 10 and the upper heating chamber wall 11, and a heating plate 5 on which a cooking utensil such as a pot is placed is installed at the upper part of the combustion chamber 10. .
The burner 2 and heating plate 5 may be made of ceramic. Reference numeral 6 indicates the bottom wall and side wall of the heating chamber made of a heat insulating material, 7 indicates a heat insulating packing, and 8 indicates a premixture introduction pipe.

(Function) In the above configuration, when the premixture of gas and air is introduced into the burner 2 from the premixture introduction pipe 8 and starts combustion, the heating plate 5 is heated by the combustion heat. At the same time, the catalyst peripheral wall 3 is also heated.

At this time, the flame generated within the combustion chamber 10 is prevented from spreading by the catalyst surrounding wall and directly heats the heating plate 5. Therefore, the area around the heating plate 5 is not overheated, and the catalyst surrounding wall is heated at the same time, but since the catalyst surrounding wall is also a highly radiant body, radiant heat is given to the heating plate 5 to further increase the heating plate 5. Heat. Such radiant heat can be further improved by increasing the opening area of the catalyst peripheral wall 3 toward the top. In this case, due to the presence of the combustion gas outflow section 4, the combustion gas flow is formed on the bottom surface of the heating plate 5, so that convective heating is further promoted and heat transfer can be carried out effectively. The combustion gas flowing through the outlet portion 4 has a faster flow rate, so that the heating efficiency can be further improved.

Furthermore, since the combustion chamber 10 is surrounded by the catalyst peripheral wall 3, the oxidation reaction is promoted and the flame within the combustion chamber can be significantly stabilized.

By performing such combustion, the present invention can improve thermal efficiency by 10% compared to conventional methods, and
The CO concentration in exhaust gas can also be suppressed to 10 ppm or less. Note that the exhaust gas is exhausted from the exhaust section 9.

(Effects of the Invention) As described above, the present invention has excellent effects in that it significantly improves heating efficiency, stabilizes combustion, and further reduces emissions of unburned parts as much as possible.

[Brief explanation of the drawing]

FIG. 1 is a schematic cross-sectional view of a conventional stove device.
FIG. 3 is a schematic cross-sectional view of the present invention.
4 is an enlarged view of the main part. Reference numerals 1...heating chamber, 2...burner, 3...catalyst peripheral wall, 4...annular outlet portion, 5...heating plate,
6: Bottom wall and side wall of heating chamber; 7: Filling; 8:
......premixed fuel introduction pipe, 9...exhaust section, 10...combustion chamber, 11...upper heating chamber wall.

Claims (1)

[Scope of utility model registration request] A burner is installed in a heating chamber, and a catalyst surrounding wall is provided on the outer periphery of the burner, the opening area of which increases as it goes upward, and a combustion chamber is formed above the burner by being surrounded by the catalyst wall. The surrounding wall is
A stove device whose overall height is slightly lower, a combustion gas outlet is provided between the upper heating chamber wall, and a heating plate on which cooking utensils such as pots are placed is installed at the upper part of the combustion chamber. .