JPS6383512A - Liquid fuel combustion apparatus - Google Patents

Abstract

PURPOSE:To lower the manufacturing cost and to make a burner assembly compact in the title combustion apparatus, by combinedly forming a vaporizing chamber to the throat which mixed vaporized fuel with air. CONSTITUTION:A vaporizing cylinder 21 is monolithically formed externally around a throat 4. One end of a vaporized fuel introducing pipe 23 is opened to the vaporizing chamber 21, and the other end of it is connected to a nozzle 3. A liquid fuel being fed by a pump 7 through a fuel oil feeding pipe 8 is led into the vaporizing chamber 21 from a fuel inlet port 9. The fed fuel is vaporized in a moment of time because the inside of a vaporizing cylinder 21 is preheated by an electric heater 2. When the internal pressure in the vaporizing chamber 21 is raised by expansion of fuel by vaporing, the vaporized fuel is ejected into the throat 4 from the nozzle 3 via the fuel introducing pipe 23. A combustion air is sucked from the opening 13 at the bottom of it by a jet flow of fuel at the same time. The vaporized fuel is mixed with the air, becoming a mixed gas, going up to a burner head 5 ignited properly, forming flames 15. The vaporizing chamber is monolithically formed with the throat 4 in such a manner that the manufacturing cost of a burner assembly is lowered, and the spaces for a burner part and a vaporizing part can be reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application] This invention relates to a liquid fuel combustion device that vaporizes and burns liquid fuel.

[Conventional technology]

FIG. 3 is a sectional view of a main part of a conventional liquid fuel combustion device.

In the figure, 1 is preheated to 200°C to 30°C by electric heating element 2.
A vaporization chamber heated to a temperature of 0°C, 3 a nozzle for spouting the vaporized fuel vaporized in the vaporization chamber 1, 4 a throat for receiving the vaporized fuel ejected from the nozzle 3, and 5 formed of a wire mesh or the like. The burner head is fixed on the burner bottom wall 6 provided at the top of the throat 4.

In the above, vaporization chamber 1. Electric heating body 2. a vaporizing section consisting of a nozzle 3; a throat 4; The combustion part consisting of the burner head 5 is manufactured completely separately.

7 is a pump that connects the oil tank 12 through the oil supply pipe 8.
The liquid fuel inside is supplied to the vaporization chamber 1 from the fuel supply port 9.

A thermistor 10 detects the temperature of the vaporizing chamber, and the temperature of the vaporizing chamber is controlled to a predetermined temperature by this thermistor.

11. An electromagnetic valve that opens and closes the nozzle 3, and forms a valve structure that communicates with the oil tank 12 when the nozzle 3 is closed, and closes it when the nozzle 3 is open. It is a valve.

Next, the operation will be explained. When the inside of the vaporization chamber 1 reaches a temperature at which the fuel can continue to be sufficiently vaporized by the electric heating element 2,
The bomb is activated, the nozzle 3 is opened, and the fuel supplied into the vaporization chamber 1 through the fuel supply pipe 8 is instantaneously vaporized and ejected toward the throat 4.

At this time, air is sucked through the lower opening 13 of the throat 4 by the ejection force of the vaporized fuel, becomes an air-fuel mixture in the throat 4, reaches the space 14, and is appropriately ignited to form a flame 15.

[Problem that the invention seeks to solve]

In the conventional Bunsen-type combustion device as described above, the combustion part and the vaporization part have completely separate element configurations, so
In addition to being relatively expensive, there are also problems such as a large loss of space.

The present invention was made to solve the above-mentioned conventional problems, and an object of the present invention is to provide a liquid fuel combustion device that can reduce costs and save space.

[Means for solving problems]

The limb fuel combustion device according to the present invention has a vaporization chamber attached to a throat for sucking and mixing vaporized fuel and air.

[Effect]

In this invention, since the vaporization chamber is provided using the empty space around the throat, space is saved in manufacturing the combustion device, and the combustion part and the vaporization part can be partially integrated. This makes it possible to reduce costs.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. 1 and 2.

In FIGS. 1 and 2, reference numeral 21 denotes a vaporization chamber, which is installed around the outer periphery of the throat 4 and integrally with the throat 4, and has a cylindrical shape with a bottom, and whose upper opening is closed by a lid 22. There is. This lid body 22 also serves as the bottom wall of the burner, and the burner head 5 is mounted and fixed thereon.

Reference numeral 23 denotes a vaporized fuel outlet pipe, one end of which is connected to the vaporization chamber 21 and the other end connected to the nozzle 3. In the figure, the same reference numerals as in FIG. 3 indicate the same or corresponding parts.

Next, the operation of this embodiment configured as described above will be explained.

The liquid fuel sent through the fuel supply pipe 8 by the Bonpouf is preheated to 200°C to 3°C by the electric heating element 2 from the fuel supply port 9.
When it enters the vaporization chamber 21, which is heated to a temperature of 00°C, it is instantly vaporized.

And vaporize! I! ! When the internal pressure increases due to tensioning, the vaporized fuel is ejected from the nozzle 3 into the throat 4 through the outlet 'ff23, and the jet stream simultaneously sucks air from the lower end opening 13 and mixes with this air to form a mixture, which is then sent to the burner. Once the head 5 is reached, it is ignited as appropriate to form a flame 15.

〔Effect of the invention〕

As described above, according to the present invention, since the vaporization chamber is provided integrally with the throat around the outer periphery of the throat for sucking and mixing vaporized fuel and air, the cost of the combustion device can be reduced, and the combustion part and vaporization It becomes possible to save space in the department.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view of a liquid fuel combustion device showing an embodiment of the present invention, FIG. 2 is a cross-sectional view taken along the line ■-■ in FIG. 1, and FIG. 3 is a cross-sectional view of a conventional combustion device. In the figure, 3 is a nozzle, 4 is a throat, 5 is a burner head, 21 is a vaporization chamber, and 23 is an outlet pipe. Agent Masuo Oiwa (2 others) 1 fan, 2 mouths, 3 dimensions

Claims (1)

[Claims] In a combustion device in which a combustion burner head is provided at the top of a throat that sucks and mixes vaporized fuel ejected from a nozzle and external air, a vaporization chamber is attached to the throat, and the vaporized fuel vaporized in this vaporization chamber is A liquid fuel combustion device characterized in that the liquid fuel is guided to the nozzle.