JP2002295810A - Portable liquid fuel burner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vaporizing pipe capable of fully heating and gasifying liquid fuel passing through the internal part of the gasifying pipe. SOLUTION: A portable liquid fuel burner is provided with at least the vaporizing pipe 2 to gasify liquid fuel by heating the liquid fuel, and a spiral wire 6a is situated at the internal part of the vaporizing pipe 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technique for improving a portable liquid fuel burner. In particular, the present invention relates to a technique for improving a vaporization pipe portion that vaporizes by heating liquid fuel.

[0002]

2. Description of the Related Art A liquid fuel burner for a portable stove used outdoors has a liquid fuel tank for storing liquid fuel, and the liquid fuel supplied from the liquid fuel tank is vaporized by a burner flame or an electric heater. It is common to comprise a vaporizing pipe which burns and a burner head which burns the vaporized fuel obtained by the vaporizing pipe.

[0003] As shown in FIG. 7, the vaporizing pipe 11 of the conventional portable liquid fuel burner passes through the inside by heating a simple hollow vaporizing pipe with a flame or an electric heater of the burner. Liquid fuel was vaporized.

[0004]

However, when the vaporizing pipe having such a configuration is used, the liquid fuel supplied from the liquid fuel tank passes through the inside of the vaporizing pipe in a short time. Was difficult to sufficiently heat and vaporize efficiently.

In such a case, it is conceivable to lengthen the vaporization tube itself, but if the vaporization tube itself is lengthened,
The weight is heavy, which is inconvenient for carrying, and the efficiency is poor when heating the vaporization tube.

Accordingly, an object of the present invention is to provide a liquid fuel burner having a vaporizing tube capable of sufficiently heating and vaporizing liquid fuel passing through the inside of the vaporizing tube.

[0007]

In order to solve the above-mentioned problems, the present invention is directed to a portable liquid fuel burner having at least a vaporizing tube which vaporizes by heating a liquid fuel, wherein the vaporizing tube is provided. A portable liquid fuel burner characterized in that a helical vaporization promoting member is provided inside.

As the liquid fuel burner, for example, a liquid fuel burner that sends liquid fuel from a liquid fuel tank storing compressed liquid fuel to a vaporization pipe and vaporizes the liquid fuel in the vaporization pipe can be considered.

In the liquid fuel burner having such a configuration, since the liquid fuel supplied from the liquid fuel tank vigorously passes through the inside of the vaporizing pipe, the liquid fuel passing through the vaporizing pipe is sufficiently heated. Although it was difficult to vaporize, since the vaporization pipe of the portable liquid fuel burner according to the present invention is provided with a helical vaporization promoting member inside the vaporization pipe, it passes through the vaporization pipe. As a result, the flow rate of the liquid fuel is limited, and the liquid fuel stays inside the vaporization pipe for a long time, so that the liquid fuel is sufficiently heated and vaporized.

[0010] As the helical vaporization promoting member, a plate material can be formed helically on the inner wall of the vaporization tube.
The helical portion may be integrally cast on the vaporizing tube itself, or may be formed by helically winding a wire around a central axis.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiment of the present invention described above will be described with reference to FIGS.

FIG. 1 is a side view of a portable liquid fuel burner 10 according to a first embodiment of the present invention. FIG.
It is a top view of the vaporization pipe 2 of the portable liquid fuel burner 10 according to the first embodiment of the present invention. FIG. 3 is a partial cross-sectional view of the vaporization pipe 2 of the portable liquid fuel burner 10 according to the first embodiment of the present invention. FIG. 4 is a cross-sectional view taken along line AA ′ of FIG.

As shown in FIG. 1, a portable liquid fuel burner 10 according to a first embodiment of the present invention comprises a burner main body 1, a vaporization pipe 2, a liquid fuel supply pipe 3, a liquid fuel tank 4, Consists of

[0015] The liquid fuel burner 10 according to the present embodiment.
By reciprocating the manual pressurizing pump 5,
The inside of the liquid fuel tank 4 is pressurized, the liquid fuel stored in the liquid fuel tank 4 is sent to the vaporization pipe 2 through the liquid fuel supply pipe 3, and the vaporized liquid fuel is burned in the burner main body 1. I have.

The vaporizing tube 2 according to the present embodiment has a shape as shown in the top view of FIG. 2, and heats the vaporizing tube 2 by using the flame of the burner main body 1 so that the vaporizing tube 2 is heated. The liquid fuel passing through the inside 2 is vaporized. However, the present invention is not limited to such a configuration, and a configuration in which an electric heater or the like for heating the vaporization tube 2 is separately provided and the vaporization tube 2 is heated may be employed.

As shown in FIG. 3, a helical wire 6a is provided inside the portable liquid fuel burner 10 according to the present embodiment as a vaporization promoting member.

Here, as shown in FIG. 4, the spiral wire 6a has an outer peripheral portion 7 having an inner wall 8 of the vaporizing tube 2.
It is fixed so that it adheres closely.

In the embodiment of the present invention, as shown in FIG. 4, the vaporization promoting member is formed by using a spiral wire 6a having a circular cross section. However, for example, a strip-shaped plate is processed into a spiral shape. It may be installed inside the vaporization tube 2.

Since the vaporization pipe 2 of the portable liquid fuel burner 10 according to the first embodiment of the present invention is constructed as described above, the liquid fuel tank 4 is moved by reciprocating the manual liquid fuel pump 5. When the inside is pressurized and the pressurized liquid fuel is supplied to the vaporization pipe 2 through the liquid fuel supply pipe 3, the liquid fuel is supplied by the spiral wire 6 a provided inside the vaporization pipe 2. The burner body 1 stays inside the vaporizing pipe 2 for a long time, and is sufficiently heated and vaporized by the flame of the burner main body 1.

FIG. 5 is a partial sectional view of the vaporization pipe 2 of the portable liquid fuel burner according to the second embodiment of the present invention. FIG. 6 is a cross-sectional view taken along line BB ′ of FIG.

The overall configuration of the portable liquid fuel burner according to the present embodiment is the same as that of the portable liquid fuel burner 10 according to the first embodiment of the present invention, and the portable liquid fuel burner according to the present embodiment. A portable liquid fuel burner 1 according to the first embodiment of the present invention also has a vaporizer tube 2 of a burner.
0 is formed in the same manner as the vaporization tube 2.

As shown in FIG. 5 or FIG. 6, a wire 6b is spirally wound around a central axis 9 inside the vaporization tube 2 according to the present embodiment to form a vaporization promoting member.

The center axis 9 here uses an iron wire, but is not limited to this.

As described above, the wire 6b is wound around the central shaft 9 formed of an iron wire to form a spiral-shaped vaporization promoting member, thereby facilitating processing of the vaporization promoting member.

In this embodiment, the wires 6b
So that the outer peripheral portion 7 of the
Fixed.

[0026]

Since the present invention is configured as described above,
The liquid fuel supplied from the pressurized liquid fuel tank is
Since the helical vaporization promoting member provided inside the vaporization tube suppresses the momentum, the vaporization promotion member stays inside the vaporization tube for a long time, and is sufficiently heated and vaporized.

As a result, it is possible to stably supply the vaporized fuel to the burner head, and the combustion efficiency is increased.

[Brief description of the drawings]

FIG. 1 is a side view of a liquid fuel burner 10 according to a first embodiment of the present invention.

FIG. 2 is a top view of the vaporization pipe 2 of the liquid fuel burner 10 according to the first embodiment of the present invention.

FIG. 3 is a partial cross-sectional view of the vaporization pipe 2 of the liquid fuel burner 10 according to the first embodiment of the present invention.

FIG. 4 is a cross-sectional view taken along line AA ′ of FIG. 3;

FIG. 5 is a partial cross-sectional view of a vaporization pipe 2 of a liquid fuel burner according to a second embodiment of the present invention.

FIG. 6 is a cross-sectional view taken along line BB ′ of FIG. 5;

FIG. 7 is a partial sectional view showing a conventional vaporization tube.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Burner main body 2 Vaporization pipe 3 Liquid fuel supply pipe 4 Liquid fuel tank 5 Manual pressurization pump 6a, 6b Wire 7 Outer peripheral part of wire (6a, 6b) 8 Inner wall of vaporization pipe 9 Center axis 10 Portable liquid fuel burner 11 Conventional vaporization tubes

Claims (2)

[Claims] 1. A portable liquid fuel burner including at least a vaporization tube that vaporizes by heating a liquid fuel, wherein a helical vaporization promoting member is provided inside the vaporization tube. And portable liquid fuel burner. 2. The portable liquid fuel burner according to claim 1, wherein the helical vaporization promoting member is formed by helically winding a wire around a central axis.