KR900008775Y1 - Vaporizing type kerosene combustion apparatus - Google Patents

Abstract

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Description

Evaporative Combustor of Oil Combustor

1 is an exploded perspective view of a vaporizer according to the present invention.

Figure 2a is a plan view of a nozzle tip inserted into the vaporization tube of the present invention.

3a, b or operating state diagram of adjusting the flow rate of the vaporizer according to the bimetal deformation according to the vaporization gas temperature.

4 is a cross-sectional view of the installation state of the combustion device of the present invention.

* Explanation of symbols for main parts of the drawings

1: vaporizer 2: vaporizer

2a: Hurenji part 3: Ceramic heater

4: Hurenji 5: Hitabong

6: bimetal 6a: semicircular groove

7: packing 8: ceramic tube

9: nozzle tip 10: vortex flow groove

11: nozzle cap 11a: nozzle hole

12: combustion cylinder 12a: thermostat

12b: secondary air hole 13: mixing chamber

14: primary air hole 13b: flame hole

13a: hemispherical cam 15: ignition heater

The present invention relates to an improved vaporized combustion apparatus for vaporizing and burning fuel introduced into a vaporizer through a flow pipe, in particular.

Conventionally, this type of combustion device is equipped with an electric heater to the carburetor as shown and described in Japanese Utility Model Publication No. 52-50039, and controls the outlet of the end of the vaporization pipe by the electrical action of the movable transition solenoid inside the vaporization pipe. And ignited combustion by means of an ignition plug by blowing a mixed gas to the burner head.

However, the above device is difficult to remove tar in the vaporization tube because the structure is complicated because the heat sink is installed behind the carburetor and the solenoid is mounted, so that the solenoid coil is disconnected according to the frequency of use. This is difficult.

In addition, as a structure in which the mixed gas ejected from the vaporizer is ejected directly through the burner of the burner head, the burner head needs to be warmed up and consumes a lot of power of the electric heater.

The present invention is to make the structure of the carburetor as simple as possible, but by embedding a ceramic tube and a known ceramic heater in the vaporization tube, the fuel introduced from the oil feed pipe vaporizes the fuel as far-infrared radiation is emitted from the ceramic tube by heating the ceramic heater. The vaporized gas passes through the groove of the vortex-type nozzle tip at the end of the vaporization tube, and the dispersion zone expands according to the opening angle of the nozzle ejection hole to ignite and mix with the primary air flowing into the mixing chamber. When the thermostat senses and exceeds the set temperature, the electric power is cut off from the heater of the vaporizer and the natural vaporization in the heated mixing chamber will be described in detail with reference to the accompanying drawings.

1 is an exploded perspective view of a vaporizer used in the present invention, as shown in the rear part of the vaporizer tube 2 of the vaporizer 1 to facilitate the removal and decomposition of tar generated in the vaporizer 1; To the flange 4, which is a fixing tool of a known ceramic heater (silicon nitride ceramic (Si ₃ N ₄ )) (3).

That is, when the packing 7 and the ceramic tube 8 are inserted into the heater rod 5 of the ceramic heater 3 and inserted into the rear end of the vaporization tube 2, minute pores are generated between the vaporization tube inner diameter and the ceramic tube and through the pores. Fuel such as petroleum introduced into the oil feed pipe 2b of the vaporizer 1 is vaporized.

At this time, the evaporation state of the fuel is promoted by radiating and emitting a constant energy from the ceramic tube 8 by the generated heat source of the ceramic heater 3.

In addition, as the bimetal 6 having different coefficients of thermal expansion of the metal at the tip of the ceramic heater 3 and the bimetal 6 are changed from concave to convex due to the temperature of the ceramic heater, the vortex tip groove 10 has a fine nozzle tip ( 9) controls the nozzle hole 11a of the nozzle cap 11.

A semicircular groove 6a is formed in the circumference of the bimetal 6, and the diameter of the bimetal 6 is formed to be substantially the same as the inner diameter of the vaporization tube 2.

FIG. 2 is a plan view of the nozzle tip used in the present vaporizer, and FIG. 3 is (a) and (b) illustrating an operating state diagram in which the bimetal is changed according to the temperature of the vaporized gas and controlling the flow rate.

As described above, the shape seen from the tip of the nozzle cap 11 is formed in a tapered shape such that the vortex groove 10 is excavated gradually from the centrifuge to extend to a cylindrical surface, and close to the inner surface of the nozzle cap 11, like a blue gutter. It is.

In addition, the front surface of the nozzle hole 11a of the nozzle cap 11 has a constant spray angle in order to expand the dispersion region in the mixing chamber.

In addition, when the temperature rises due to the heating of the ceramic heater 3 in the vaporization tube 2 in the state of FIG. 3 (a), the bimetal 6 on the ceramic heater 3 is convex and convex (b) The center of the bimetal 6 rises convexly so that the nozzle tip 9 rises and closes the nozzle hole 11a of the nozzle cap 11 to control the flow rate of the vaporized gas. The pressure increases relative to the injection zone in the mixing chamber.

In addition, when the temperature of the vaporized gas is lowered below the setting temperature of the bimetal 6, the bimetal 6 returns to the original state from FIG. 3 (b) to (a) and the nozzle hole 11a and the nozzle tip of the nozzle cap 11 are returned. (9) is finely spaced to increase the flow rate of the vaporized gas.

4 is a cross-sectional view of the installation state of the combustion device of the present invention, as described above, the nozzle cap 11 of the vaporizer 1 is a cone type primary air hole of the mixing chamber 13 fixed to the lower center of the combustion cylinder 12. The vaporized gas, which is mounted inside the nozzle 14 and blown out through the nozzle hole 11a, is mixed with the outside air flowing into the primary air hole 14, and is contacted with the hemispherical cap 13a above the mixing chamber 13 to be dispersed. At the same time, it flows into the salt hole 13b of the outer wall of the mixing chamber 13 and is ignited and burned by the heat generated by the ignition heater 15.

However, the flame ignited in the salt hole 13b of the mixing chamber 13 during combustion is completely burned by the combustion air flowing into the secondary air hole 12b in the bottom of the combustion cylinder 12 and attached to the combustion cylinder 12. When the temperature of the thermostat 12a is higher than the set temperature, it senses this and cuts off the power of the ceramic heater 3 of the vaporizer 1.

Therefore, even though the pumped fuel flows into the mixing chamber 13 without being vaporized from the vaporizer 1, the pumped fuel is vaporized by the temperature of the heated mixing chamber 13 and the vaporized gas is ejected through the salt hole 13b and combusted. .

In this process, the hemispherical cap 13a of the mixing chamber 13 is flexed into the mixing chamber 13 so as to efficiently vaporize and ignite the fuel ejected into the mixing chamber 13. Instead of reducing the total oil space, the heat transfer area is increased to improve the combustion atmosphere, and the vaporized gas contacted with the hemispherical surface is mixed with the primary air to be combusted through the salt hole 13b.

Reference numeral 16 denotes a conventional flame detector and 17 is an incomplete combustion detector.

As described above, the present invention simplifies the internal structure of the carburetor to promote the vaporization of petroleum by the release energy of the ceramic heater and fasten with the flange to facilitate the removal of tar generated inside the carburetor, so that the carburetor can be freely disassembled and combined.

In addition, by installing a vaporizer in the primary air hole formed in the cone shape of the mixing chamber mounted in the center of the double-pipe type combustion cylinder, outside air and mixed gas are mixed in contact with the hemispherical cap of the mixing chamber, and the heat transfer area is increased to improve the combustion atmosphere. There is an advantage that can be made.

Claims (1)

Inside the combustion cylinder, which consists of a heat-generating means having a well-known ceramic heater bonded to the inside of the vaporization tube, and a flow control means for controlling the nozzle hole by the nozzle lip according to the shrinkage expansion of the bimetal interposed at the tip of the ceramic heater. Evaporative combustion device of petroleum combustor, characterized in that the semi-circular cap combined with the mixing chamber of the mixing chamber is provided with the outside air for discharging the ejection gas of the vaporizer.