JPS6324328Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a rotary gasification burner, and is aimed at preventing oil accumulation due to reliquefaction of premixed gas in a gas passage.

To explain the upward combustion type burner shown in the drawing as a conventional example of this type of burner, in Fig. 1, 1 has a large number of flame ports 2 only on the upper surface of both ends in the longitudinal direction, and the inside is a premixing chamber 3. It is a rectangular combustion disk. A rotary shaft 5 of a blower 4 provided below is inserted through the center of the premixing chamber 3 and protrudes upward. A hollow cylindrical vaporizing cylinder 6 is provided at the tip of the rotating shaft 5.
is attached so as to have a scattering gap 7 between it and the combustion disk 1. Reference numeral 8 denotes a gas collecting cylinder, which communicates the inside of the vaporizing cylinder 6 with the premixing chamber 3. Reference numeral 9 denotes blower pipes provided at equal intervals around the outer circumference of the gas collecting pipe 8, which pass through the premixing chamber 3 and into the blower chamber 10.
It is connected to and blows air into the vaporizer cylinder 6.
Reference numeral 11 denotes an oil pipe for supplying oil to the inner surface of the carburetor cylinder 6.

Next, the effect will be explained. The blower 4 is driven to start blowing air, and at the same time, the vaporizer cylinder 6 is rotated. When oil is supplied to the inner surface of the vaporizer cylinder 6 from the oil pipe 11,
Oil is scattered from the scattering gap 7 by centrifugal force.
When an ignition operation is performed here, the petroleum forms droplet combustion and heats the vaporization cylinder 6. When the vaporization tube 6 is heated, the oil is vaporized and flows into the gas collecting tube 8 together with air sent from the blast pipe 9 in a direction opposite to the flow direction of the oil flowing inside the vaporization tube 6. While being mixed, the mixture becomes a combustible air-fuel mixture in the premixing chamber 3 and is ejected from the flame port 2, and is ignited by a droplet combustion flame to form vaporization combustion. However, when the premixture passes through the premixing chamber 3, as shown in FIG.
Further, since eddies are generated on the downstream side of the blow pipe 9 and the premixture is retained, the vaporized gas is easily cooled and re-liquefied, resulting in oil stagnation. Even after the accumulated oil transitions to vaporization combustion, it is cooled by the air passing through the blast pipe 9.
It did not evaporate easily, causing white smoke and odor after the flame was extinguished.

The present invention improves the above-mentioned drawbacks, and in the above-described configuration, the blower pipe 9 is provided around the outer periphery of the gas collecting tube 8 along the longitudinal surface. (Fig. 3) In such a configuration, the premixed gas flows from the gas collecting pipe 8 toward the flame port 2 in the premixing chamber 3 without receiving any resistance from the blast pipe 9. This reduces the contact area with the surface and reduces the occurrence of eddies.

As described above, the present invention has a rectangular combustion disk that has a large number of flame ports only on the upper surface of both longitudinal ends and a premixing chamber inside, and a rotating shaft that protrudes above the combustion disk and is inserted into the center of the combustion disk, and rotates. A hollow cylindrical vaporizer tube with an open bottom is attached to the tip of the shaft so as to have a scattering gap between it and the upper surface of the combustion plate, an oil feed pipe is opened at the top of the vaporizer tube, and the inside of the vaporizer tube is connected to the center of the vaporizer tube. In a device equipped with a gas collecting tube that communicates with the premixing chamber, air pipes are arranged in the longitudinal direction on the outer periphery of the gas collecting tube, passing through the premixing chamber and supplying air from the bottom into the vaporizing tube. The gas is not cooled by coming into contact with the blower pipe, and does not accumulate around the blower pipe, which eliminates the generation of white smoke and odor after the flame is extinguished due to oil pools.

[Brief explanation of the drawing]

Figure 1 shows a cross-sectional view of a conventional example.
FIG. 2 is a plan view of the combustion disk. FIG. 3 shows a plan view of a combustion disk according to an embodiment of the present invention. 1... Combustion disk, 2... Burner port, 3... Premixing chamber,
5... Rotating shaft, 6... Vaporizer cylinder, 7... Scattering gap,
8...Gas collecting pipe, 9...Blow pipe, 11...Oil pipe.

Claims (1)

[Scope of utility model registration request] A rectangular combustion disk with a large number of flame ports on the upper surface of both longitudinal ends and a premixing chamber inside has a hollow center that protrudes above the combustion disk and has a rotating shaft inserted through it, with the tip of the rotating shaft open at the bottom. A cylindrical carburetor is installed with a scattering gap between it and the upper surface of the combustion disk, an oil feed pipe is opened at the top of the carburetor, and a gas pipe is provided in the center of the carburetor to communicate the inside of the carburetor with the premixing chamber. A rotary type gasifier equipped with a collecting tube, characterized in that blast pipes are arranged along the longitudinal surface of the gas collecting tube, passing through the premixing chamber and supplying air from the lower part into the vaporizing tube on the outer circumference of the gas collecting tube. Burna.