JPH029210Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to an improvement of the flame tube of an oil combustor.

Conventionally, flame tubes for oil combustors have been made of enameled steel plates or heat-resistant glass. Enameled flame tubes require complicated processing processes and often have defects such as cracks, chips, and distortions. Despite being a major component of oil combustors, heat-resistant glass still had inherent problems, such as being extremely expensive.

This idea was to construct the flame tube from a heat-resistant stainless steel plate, which is more expensive than steel plate. Although stainless steel does not rust easily at room temperature, it rusts at high temperatures, so it is not normally used as a flame tube. I couldn't do that.

This invention to improve the above-mentioned problems is an embodiment.As shown in the figure, 1 is a flame spreader which is the combustion part of an oil combustor, 2 is a combustion chamber in which the flame spreader 1 is installed, 3
is a flame tube that constitutes the second wall of the combustion chamber. The flame cylinder 3 is made of a stainless steel plate which has been oxidized and colored by heat treatment. Reference numeral 4 denotes a large number of small holes drilled in the flame tube 3, and the small holes 4 are arranged in a pattern such as regularly arranged, circularly or diamond-shaped.

5 is an oil tank, 6 is a wick up/down knob, 7 is a wick up/down device, and 8 is a wick.

The oil combustor having the structure described above operates in the same way as conventional products, and can be expanded by rotating the wick upper and lower knobs 6, pulling up the wick 8, and igniting the tip of the wick 8 with an ignition device (not shown). Flame device 1 emits a white-yellow flame and burns.

By the way, as a means of preventing oxidation of a metal plate, there is a method of preventing rust by forming a stable oxide film on the surface of a metal material, in addition to a method of preventing rust using other non-rust materials such as enamel. If this oxide layer becomes thicker, the color will be black, but by controlling the thickness of the film, it can develop a color such as copper or blue. In other words, this is white light that has a specific wavelength that is absorbed by the oxide layer and the rest is reflected, giving the human eye a sense of color.In principle, it is not the color of the oxide layer, but sometimes There is also an interaction between the color of the oxide layer itself obtained by an oxidation reaction with an additive used during the oxidation treatment and the above effect. These materials develop color through heat treatment, but even if the material is durable stainless steel, if they are used in the flame tube 3 that forms the combustion chamber 2 wall,
The flame tube 3 tends to reach a higher temperature than the heat treatment temperature, and as a result of being directly exposed to the heat of the combustion flame of the flame spreader 1, red rust occurs in a short period of time, making it virtually impossible to use it in an oil burner.

This idea focused on the fact that a strong upward draft (draft) is generated in the flame tube 3 during use of an oil combustor, which continues combustion. This realized the use of a stainless steel plate that was oxidized and colored. In other words, it is believed that if a small hole is made in the flame tube 3 where the draft works, air outside the oil combustor will flow into the combustion chamber 2 through the small hole and affect combustion, but in reality, air from outside the oil combustor will flow into the combustion chamber 2 and affect combustion. If the height of the flame tube 3 is set so that even when air flows in, the combustion part is given the same draft as before the small hole was made, the combustion condition will not worsen and become unusable. It didn't happen. Also, by allowing air to flow in from the flame tube 3 in this way, the flame tube 3 is cooled by the inflowing air, and the flame tube 3 does not become as hot as in conventional products.

Therefore, if the flame tube 3 is made of a stainless steel plate that has been oxidized and colored by heat treatment, and a number of small holes 4 are made in the stainless steel plate as appropriate, the stainless steel plate that receives the combustion heat will be heated to a high enough temperature that the stable oxide film will be destroyed. Instead, it could be used as a flame tube for an oil burner.

Furthermore, since the air entering the flame tube 2 through the small hole 4 increases the amount of oxygen inside the flame tube 2, the combustion flame caused by the flame expander 1 is less likely to cause flames and smoke, and the range of stable combustion is widened. Ivy.

In addition, since the combustion flame or the light from the bright inner surface of the flame tube 3 leaks from the small holes 4, the small holes 4 appear as bright points of light when viewed from a little distance. This is an extremely practical idea that produces a good design effect.

[Brief explanation of drawings]

The figure is a cross-sectional view of this device. 1...Flame spreader, 2...Combustion chamber, 3...Flame tube,
4...Small hole.

Claims (1)

[Scope of utility model registration request] The flame tube 3 of the white-yellow flame petroleum combustor, which covers the periphery of the flame spreader 1 and forms the wall of the combustion chamber 2, is made of a stainless steel plate that has been oxidized and colored by heat treatment, and the flame tube 3 has a large number of An oil burner characterized by having small holes 4.