JPH0518567Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a liquid fuel combustion device, and particularly to a liquid fuel combustion device using a Bunsen type burner.

[Background of the idea]

Liquid fuel combustion devices using Bunsen-type burners have recently attracted particular attention because they have a simple structure and are easy to control. This liquid fuel combustion device using a Bunsen-type burner heats and vaporizes kerosene with a vaporizer equipped with an electric heater to gasify it, and then supplies this vaporized gas to a Bunsen-type burner that has a mixing tube and a combustion plate connected. and burn it.

However, in conventional liquid fuel combustion devices using Bunsen-type burners, the vaporizer must be heated to approximately 300°C or higher until the kerosene is completely vaporized and gasified. The problem is that a large amount of power must be constantly supplied to the device, resulting in an enormous amount of power consumption and extremely high running costs.

In addition, since the vaporizer is heated until the kerosene is completely vaporized and gasified, the electric heater and kerosene tend to be overheated, resulting in a shortened lifespan of the electric heater and the generation of tar, which can cause the vaporizer to heat up. There were also problems such as the nozzle part installed inside or at the tip becoming clogged.

The present invention was devised against this background, and its purpose is to maintain the advantages of the conventional Bunsen burner, reduce power consumption in the vaporizer, and extend the life of the electric heater. It is an object of the present invention to provide a liquid fuel combustion device which is advantageous in terms of maintenance by controlling the generation of tar components.

[Structure of the idea]

The liquid fuel combustion device of the present invention includes a heating chamber to which kerosene is supplied from a kerosene tank through an oil pipe,
A valve is provided at the tip of this heating chamber to serve as a passage for heated kerosene, and a spray nozzle for atomizing the heated kerosene is provided at the tip of this valve. It is equipped with a Bunsen-type burner that has a
The above objectives are achieved.

〔Example〕

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a sectional view showing an embodiment of the liquid fuel combustion device of the present invention, in which 1 is a heating chamber equipped with an electric heater, 2 is a valve provided on the downstream side of the heating chamber, and 3 is a valve 2. A liquid spray nozzle 4 provided on the downstream side of the liquid spray nozzle 4 is a Bunsen type burner having a mixing pipe 5 and a combustion plate 6 provided opposite to the liquid spray nozzle 3.

The heating chamber 1 is equipped with an electric heater 7 such as a sheathed heater or a ceramic heater. When the heating chamber 1 is heated by energizing the electric heater 7, a temperature sensor 10 is also attached to the heating chamber 1. This temperature sensor 10 is used to detect the temperature inside the heating chamber 1 and to detect the completion state of preheating of the heating chamber 1. An electromagnetic pump 9 is connected to the heating chamber 1 via an oil pipe 17, and the electromagnetic pump 9 also pumps kerosene from a kerosene tank 10 (or an oil receiver) to the heating chamber 1.

A valve 2 is provided at the tip of the heating chamber 1 . This valve 2 is opened and closed by a plunger 12 that is moved by a solenoid 11 provided at the rear of the heating chamber 1. That is, by displacing the plunger 12 to the left in FIG. 1, the valve 2 is closed. Preheat heating chamber 1 with valve 2 closed,
After the preheating is completed, kerosene is forced into the heating chamber 1, the valve 2 is opened, and the heated kerosene is spouted to the liquid spray nozzle 3 side.

A filter 13 is provided on the outlet side of the valve 2, and a liquid spray nozzle 3 is provided downstream of the filter 13. This spray nozzle 3
The main elements are a distributor 14 provided with a swirl groove and an orifice 15 provided at the tip of the distributor 14.

In this case, the kerosene heated in the heating chamber 1 swirls in the swirl groove of the spray nozzle and is ejected toward the burner 4 side. That is, when kerosene swirls in a spiral swirl groove, it tries to form a thin film due to centrifugal force, but on the other hand, it tries to become spherical due to the action of surface tension. The action of centrifugal force and surface tension causes the film of kerosene to disperse and become atomized. White kerosene usually costs 150
The heating chamber in the present invention is heated within the range of 100-240°C. Therefore, part of the kerosene vaporizes within the heating chamber 1, but the remainder does not. However, since the kerosene that has not vaporized is sufficiently heated and activated, the spray nozzle 3 atomizes it more finely than it would atomize at room temperature.

The kerosene ejected from the orifice 15 sucks primary combustion air, flows into the mixing pipe 5 of the burner 4, reaches the combustion plate 6, and burns. In this case, since the kerosene is finely atomized, it can be sufficiently mixed with the primary combustion air and a good combustion state can be obtained.

The burner 4 is constructed by connecting a mixing pipe 5 and a combustion plate 6, and a folding plate 16 for atomized fuel is provided below the combustion plate 6.

[Effect of idea]

As described above, according to the liquid fuel combustion device of the present invention, since the liquid spray nozzle that spouts heated fuel is provided on the downstream side of the heating chamber, the heating chamber is heated until the kerosene is completely gasified. There is no need to do so, the power consumption of the electric heater is low, and running costs can be significantly reduced compared to liquid fuel combustion equipment using conventional Bunsen-type burners.
Product value increases significantly.

In addition, since the heating temperature of kerosene is low, the generation of tar content is suppressed, which is extremely advantageous in terms of maintenance, and the life of the electric heater can be extended.

Furthermore, since the kerosene that reaches the liquid spray nozzle has already been heated and pressurized, the kerosene easily becomes a fine mist, which makes it difficult to cause red flames and the like, resulting in good combustion.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing an embodiment of a liquid fuel combustion device according to the present invention. 1... Heating chamber, 2... Liquid spray nozzle, 4...
...Burner, 5...Mixing pipe, 6...Combustion plate, 17
...Oil pipe.

Claims (1)

[Scope of utility model registration request] A heating chamber is provided to which kerosene is supplied from the kerosene tank via an oil feed pipe, the kerosene is preheated in this heating chamber to below its boiling point temperature at atmospheric pressure, and the heated kerosene passage and A liquid fuel burning device comprising: a valve; a spray nozzle for atomizing kerosene fed under pressure at the tip of the valve; and a Bunsen-type burner having a mixing tube and a combustion plate facing the spray nozzle.