JPS5842729Y2 - liquid fuel vaporizer - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a liquid fuel vaporization device, and is characterized by heating liquid fuel such as kerosene to a set temperature and injecting high-pressure air into it to vaporize it.

This type of liquid fuel vaporization device: ■ Heats and vaporizes liquid fuel ■ Vaporizes using ultrasonic waves ■ Heats and mixes liquid fuel and air simultaneously and vaporizes using saturated vapor pressure , etc. have been used, but for method (2), it is necessary to heat the fuel to 280 to 300° C. or higher, making it difficult to prevent carbon generation at this temperature.

In addition, in (2), the size of the oil droplets produced is large, several tens of microns, and it is necessary to take sufficient steps to evaporate the oil droplets and mix them with air during combustion, resulting in a long combustion flame.

Furthermore, regarding ■, it requires a large amount of heat to heat both the fuel and the air, and also requires a large amount of air.
As a result, the proportion of fuel contained in the air-fuel mixture was very low, around 6%, and to increase this it was necessary to further raise the temperature, making it unsuitable for high-output specifications.

The present invention has been devised in view of the above points, and embodiments of the present invention will be described below based on the drawings.

Reference numeral 1 denotes a sealed hollow cylindrical container, which has an integrally formed recess 2 for storing fuel on the inner bottom surface, and a fuel pump 5 in the center of the bottom surface.
A fuel supply pipe 6 with a fuel supply pipe 6 mounted in the middle thereof is connected with its open end being substantially flush with the inner bottom surface.

Reference numeral 7 denotes a hollow disk-shaped air ejection tube, which is installed in the container 1 facing the recess 2, and has a large number of ejection holes 8, 8, . The air supply pipe 9 led out of the container 1 is connected thereto.

Reference numeral 10 denotes a heater attached to the outer bottom surface of the container 1 with good heat conduction.

Reference numeral 11 denotes a gas outlet pipe inserted into the container 1, which is connected to a gas burner (not shown).

To explain the operation, first, the heater 10 is energized to maintain the bottom surface of the container 1 at 150 to 200°C.

On the other hand, the fuel pump 5 is operated to constantly fill the four parts 2 of the container 1 with a thin film of liquid fuel such as kerosene.

Approximately 0.6 kg is then fed into the air jet pipe 7 through the air supply pipe 9.
/cm2 high pressure air is supplied to the nozzle holes 8, 8...
...is ejected and hits the thin film of the liquid fuel.

Then, the thin film of liquid fuel is disturbed by the jet of high-pressure air and generates waves, which scatter the liquid fuel into small droplets.

The scattered droplets then evaporate and rise above the container 1 in the form of a complete mist.

Therefore, this mist may be taken out through the outlet pipe 11, supplied to the combustion device, and used for combustion.

Note that the heater 10 may be configured to heat high-pressure air.

As described above, the liquid fuel vaporization device according to the present invention includes a bottomed cylindrical container, a fuel supply device that supplies a thin film of liquid fuel such as kerosene to the inner bottom of the container, and a liquid fuel that is stored in the inner bottom of the container. an air jet pipe that injects high-pressure air into the liquid fuel;
There is no need to heat the liquid fuel to a high temperature of 280°C or higher, and since the heating temperature of the liquid fuel is low, there is almost no carbon generation.

In addition, the structure is simpler than that of a system in which liquid fuel is supplied to a rotating plate and centrifugally sprayed, and therefore the cost is low and mass production is possible.

[Brief explanation of drawings]

The drawing is an explanatory view showing a liquid fuel vaporization device according to the present invention. 1... Container, 6... Fuel supply pipe,
7... Air jet pipe, 10... Heater.

Claims (1)

[Scope of utility model registration request] A cylindrical container with a bottom, a fuel supply device that supplies a thin film of liquid fuel such as kerosene to the inner bottom of the container, and air that injects high-pressure air toward the liquid fuel stored in the inner bottom of the container. A liquid fuel vaporization device comprising an ejection pipe and a heater that heats the liquid fuel or high-pressure air to a set temperature.