JPS6226663Y2 - - Google Patents

Description

[Detailed explanation of the invention] This invention relates to a gas combustion device.
By selecting and providing a diffuser according to the type of combustion gas, the purpose is to equalize the gas supply and combustion to the catalytic burner surface and eliminate uneven surface temperature distribution.

2. Description of the Related Art Conventionally, in gas combustion devices such as stoves that burn gas using a flat mat, there are devices in which a tubular branch pipe is provided on almost the entire back surface of the mat to make the gas supplied uniform. However, such a configuration has the drawbacks of being complicated and expensive.

This invention is intended to improve the above-mentioned conventional drawbacks, and one embodiment thereof will be described below with reference to the drawings.

As shown in FIGS. 1A and 1B, gas is supplied from a gas inlet 1 and operated by an operating knob 2. As shown in FIGS. Gas stove with ignition device 3, gas pressure regulator 4,
A planar catalytic burner 13 is reached via the gas line 9 . The gas burns quietly on the surface of this catalytic burner 13. 8 is an orifice formed in the gas conduit 9 to determine the gas flow rate to the catalytic burner 13. The gas conduit 9 is branched into a solenoid valve 5 and an orifice 6.
The heating burner 7 is reached through the heating burner 7. Catalyst burner 13
A burner case 14 that covers the sealing gasket 11 is provided on the back side of the burner case 14, and a gas conduit 9 and a diffuser 10 are attached to the burner case 14 using the gasket 11, and 12 is a removable fixture. The diffuser 10 has a cylindrical shape with a closed end and a closed end, and has holes 10a, 10b, or 10c on the circumferential side for ejecting gas. And this hole 10
The diffuser 10 is attached to the burner case 14 so that the diffuser 10 is tilted and faces a burner case surface 14a facing a catalytic burner 13, which will be described later, of the burner case 14. 1
5 is a wire mesh for fixing and protecting the catalytic burner 13, 16 is a holding body for the catalytic burner 13;
7 is a mounting screw.

The catalytic burner 13 is a burner in which platinum, palladium, etc. are supported on a heat-resistant, breathable cotton-like fibrous mat, and methane gas, LP gas, etc. are passed through the burner to combust the gas by catalytic reaction.

Further, a thermocouple 18 is provided in front of the catalytic burner 13 to detect the combustion state and control the gas tank 3.

The operation of this invention will be explained below.

When the knob 2 is operated to open the gas passages to the catalytic burner 13 and the heating burner 7 to supply gas, the gas from the gas inlet 1 is ignited by the ignition device linked to the gas stove 3 to each burner. Thereafter, the flame transfers and the catalytic burner 13 burns. The knob 2 may be pushed in by hand until the thermocouple 18 is heated and the safety valve inside the gas tank 3 is able to self-hold.

At this time, the gas guided through the gas conduit 9 passes through the diffuser 10, and the gas with a light specific gravity, such as city gas, moves left and right along the inner wall of the burner case 14 as shown in FIGS. 2A and B. The fuel flows through the holes 10a and 10b and is injected along the burner case 14 in a direction opposite to and substantially parallel to the catalytic burner 13, and then reaches the catalytic burner 13 where it is combusted.

Gases with heavy specific gravity, such as LP gas, are first ejected from the hole 10c as shown in FIG. It reaches the burner 13 and burns. The diffuser 10 may be replaced depending on the type of gas.

The heating burner 7 is configured to automatically close the electromagnetic valve 5 when the catalyst burner 13 is sufficiently activated to achieve good combustion.

If the diffuser is to be attached to the upper part of the burner case using a gas with a light specific gravity, the diffuser shown in Fig. 3 may be attached, and if it is to be attached to the lower part of the burner case, the diffuser shown in Fig. 2 may be attached.

Also, if the diffuser is to be attached to the upper part of the burner case for a gas with a heavy specific gravity, the diffuser shown in Fig. 2 may be attached, and if it is to be attached to the lower part of the burner case, the diffuser shown in Fig. 3 may be attached.

As described above, according to this invention, in a gas combustion apparatus using a catalytic burner, the gas flow can be optimally adjusted according to the specific gravity, and gas can be uniformly supplied to the catalytic burner. Further, in order to uniformly diffuse the gas flow depending on the gas quality, a current plate or the like as in the conventional example is not required, so the structure can be simplified.

[Brief explanation of the drawing]

Figures 1A and B are a front view and a sectional view of a gas combustion device according to an embodiment of the present invention, Figures 2A and B are a sectional front view and a sectional side view of a diffuser, and Figures 3A and B are a diffusion FIG. 7 is a cross-sectional front view and a cross-sectional side view of another embodiment of the body. 10... Diffuser, 13... Catalyst burner.

Claims (1)

[Scope of utility model registration request] A planar catalytic burner that radiates heat forward; a burner case having a front surface for the catalytic burner; a gas supply means provided in the burner case; A diffuser is a cylindrical body that is closed and has gas ejecting holes provided on the circumferential side facing the burner case surface, which is opposite to the plane of the catalytic burner, and is inclined to face the burner case surface, which faces the plane of the catalytic burner. This diffuser has one hole when it is located in the upper part of the burner case and has two holes when it is located in the lower part of the burner case when the gas has a light specific gravity such as city gas. , and for gases with heavy specific gravity such as LP gas, when the burner case is located at the top, there are two holes, and when it is located at the bottom of the burner case, there is one hole. Device.