JPS6030581Y2 - liquid fuel combustion equipment - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a vaporization type liquid fuel combustion device.

The purpose of the invention is to provide a liquid fuel combustion device in which the vaporization of liquid fuel and the mixing with combustion air are completely carried out, and good combustion can be achieved. Explain.

Reference numeral 1 denotes a bottomed inner cylinder with a large number of combustion holes 2 on the circumferential side and a combustion chamber inside the cylinder.At the bottom of the inner cylinder 1, there is an inverted bottomed vaporizing cylinder 4 around an opening 3 provided in the inner cylinder 1. a ring, the open end of which will be described later;
It is attached through a promoting plate, and a blower tube 5 connected to a blower (not shown) is inserted into the vaporizer tube 4 with a ventilation gap 6 between the opening 3 and the vaporizer tube 4. A spray device 7 is disposed in which the spray surface is the closed end surface 4a of the vaporizing tube 4.

Reference numeral 8 denotes an outer cylinder surrounding the inner cylinder 1, and an air supply passage 9 communicating with the ventilation gap 6 is formed between the inner cylinder 1 and the outer cylinder 8.

1o is a preheating burner that heats the vaporizing tube 4, and the burner 10 has a spray nozzle 11 and an igniter 12, and the blower tube 5
This connects the branched bypass path 13.

The operation of the preheating burner 10 is controlled so as to stop when the vaporization cylinder 4 reaches the vaporization temperature.

14 has an opening 15 through which the blower tube 5 passes through the center, which is made of a thermally conductive material sandwiched between the open end of the vaporizer tube 4 and the bottom of the inner tube 1;
This is a promotion plate in which a plurality of travel wings 16 are provided around an opening 15.

17 is a ring for receiving unvaporized fuel flowing down the inner wall of the vaporization cylinder 4.

The present invention has the above-mentioned configuration. First, the preheating burner 10 is ignited to heat the vaporization cylinder 4 to a set vaporization temperature, and then the spray device 7 is operated.

The liquid fuel sprayed by the spray device 7 hits the closed surface 4a of the vaporizer tube 4 and vaporizes, and this vaporized fuel is mixed with air and sent to the combustion hole 2 through the ventilation gap 6 and the air supply passage 9. The flame is ejected from the combustion hole 2 into the inner cylinder 1, ignited, and combusted. After that, the combustion flame heats the vaporization cylinder 4, and vaporization combustion continues even after the preheating burner 10 stops operating. It will be destroyed.

By the way, liquid fuel and combustion air are supplied to the vaporization cylinder 4 of the present invention, the vaporized fuel is produced in the vaporization cylinder 4, mixed with combustion air, and then supplied to the combustion hole 2 through the ventilation gap 6. However, when the air-fuel mixture is passed through the ventilation gap 6, it is affected by the cooling air in the blower tube 5 and re-liquefies, resulting in a decrease in vaporization efficiency.

However, according to the present invention, the promoting plate 14 made of a heat-conducting material transmits the high heat at the bottom of the inner cylinder 1 and the lower part of the vaporizing cylinder 4 to the ventilation gap 6 adjacent to the blower cylinder 5, so that the temperature in the ventilation gap 6 increases. Therefore, the adverse effects of the cooling air can be prevented.

In addition, the promoting plate 14 is provided with a traveling wing 16, and the traveling wing 16 is provided with a traveling wing 16.
Since the air-fuel mixture is passed through while traveling, the vaporized fuel and combustion air are sufficiently mixed, and the air-fuel mixture comes into close contact with the high-temperature traveling blades 16, thereby preventing incomplete vaporized fuel. The present invention can provide a liquid fuel combustion device in which the fuel is completely vaporized, and as described above, the vaporization efficiency is improved and the mixture with air is completely carried out, resulting in good combustion. It is.

[Brief explanation of the drawing]

FIG. 1 is an overall longitudinal sectional view showing an embodiment of the present invention, and FIG. 2 is a plan view of the main parts. 1... Inner cylinder, 2... Combustion hole, 3...
... Opening, 4 ... Vaporization tube, 5 ... Blower tube, 6 ... Ventilation gap, 7 ... Spray device, 9 ... ... Air supply passage, 14 ... Promotion board, 16 ... Travel wing.

Claims (1)

[Scope of utility model registration request] The bottom of a bottomed inner cylinder with a number of combustion holes on the circumferential side is opened, and an inverted bottomed vaporization cylinder is erected to cover the opening, and a blower cylinder is inserted into the vaporization cylinder with a ventilation gap. In the heat exchanger, the blower tube is inserted between the vaporizer tube and the inner tube, and the blower tube is inserted between the vaporization tube and the inner tube. A liquid fuel combustion device characterized in that a promoting plate made of a conductive material is clamped, and a traveling blade is provided in a ventilation gap portion of the promoting plate.