JPS5856048B2 - gas combustion equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a gas combustion device that prevents backfire by cooling the combustion disk of a burner.

Conventionally, there have been gas burners for water heaters in which a water supply pipe is inserted midway through the combustion disk to cool the burner and prevent backfires.

However, in this case, water is an absolute requirement for cooling the combustion disk.
It could not be applied to other devices.

The present invention eliminates such conventional drawbacks, and embodiments thereof will be described below with reference to the accompanying drawings.

Referring to FIG. 1, 1 is composed of a burner case 4 having a fuel population 2 and a mixing chamber 3, and a combustion disk 6 which is placed above the burner case 4 and forms a large number of flame ports 5. In the gas burner, a heat pipe I passes through the combustion disk 6.

The heat pipe 7 has the combustion disk 6 side as a heat absorption part,
Moreover, the heat radiation part is made to protrude outside the combustion heat affected area.

In the above configuration, the gas and air mixture has a fuel population of 2
The fuel flows into the mixing chamber 3, and then is ejected from the flame port 5 of the combustion disk 6 to be combusted.

The heat conducted to the combustion disk 6 is transferred to the outside by the heat pipe 7, and then radiated from the heat radiation section.

Therefore, there is no overheating due to the combustion heat of the combustion disk 6, and backfire can be reliably prevented.

Next, FIG. 2 shows an example of application to a water heater, in which a heat exchanger 10 connected to a water supply pipe 8 and a hot water outlet pipe 9 is heated by the gas burner 1, and the heat dissipation part of the heat pipe 7 is connected to the water supply pipe. According to this example, heat dissipation from the heat pipe 7 to the flowing water is effectively performed, and the degree of cooling of the combustion disk 6 can be further promoted.

Further, FIG. 3 shows an example of application to a hot air heater, in which a heat exchanger 11 heated by the gas burner 1 is arranged in a housing 140 having a suction port 12 and a discharge port 13, and a ventilation path 15.
The flowing air in the ventilation passage 15 induced by the fan 16 is converted into warm air, and in this case as well, the heat dissipation part of the heat pipe 7 faces the ventilation passage 15 to effectively cool the combustion plate 6. It is something that can be done.

In the devices shown in FIGS. 2 and 3, the radiated heat is useful for preheating the object to be heated, thereby increasing thermal efficiency.

As explained above, the present invention enables stable combustion without backfire due to the cooling effect of the combustion disk due to the heat transfer of the heat pipe, and can be applied to all kinds of combustion equipment. It has excellent effects.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a gas combustion device showing an embodiment of the present invention;
Figure 2 is a two-part cutaway front view when applied to a water heater;
The figure is a sectional view when applied to a hot air heater. 1...Gas burner, 6...Combustion plate, 7
... Heat pipe, 8 ... Water supply pipe, 1
5...Ventilation duct.

Claims (1)

[Claims] 1. A heat absorption part of a heat pipe is attached to the combustion disk of a gas burner, and a heat radiation part of the heat pipe is located outside the heated atmosphere, and the combustion disk is cooled by heat transfer of the heat pipe. A gas combustion device featuring: 2. The gas combustion device described in Patent 1, characterized in that the heat radiating part of the heat pipe faces into the water supply pipe of the water heater. 3. The gas combustion device according to claim 1, wherein the heat radiating part of the heat pipe faces the ventilation path of the hot air heater.