JPH0125858Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> This invention relates to a vaporizing oil combustion device that vaporizes and then burns oil.

<Conventional technology> Conventionally, in vaporizing oil combustion equipment that is equipped with a heating heater and burns the oil after vaporizing it, in order to avoid wasting power consumed by the heating heater, the heat of vaporization after the initial combustion is used to generate heat from the combustion itself. It was configured to provide heat feedback.

<Problems to be solved by the invention> The feedback amount of this conventional self-heating is difficult; for example, if the amount of feedback is small, the heater will be energized for a long time, which will result in high power consumption, and if the amount of feedback is too large, This may cause damage to the vaporizer pot itself.

In order to make this amount of feedback appropriate,
It was necessary to give sufficient consideration to the material, wall thickness, and shape of the vaporizing pot, the type, shape, electric capacity, mounting surface, and mixing of vaporized gas and combustion air of the heater.

<Means for solving the problem> A convex mixing cylinder is provided with a rectifying cylinder in the shape of a reverse flap on the bottomed cylindrical vaporizing pot equipped with a heating heater, and a mixing passage is maintained outside of the rectifying cylinder. A burner comprising: a burner inner wall connected to the lower part of the mixing cylinder and erected from the middle thereof and having a plurality of flame ports; and a burner outer wall forming a gas chamber between the burner inner wall and the outside thereof. In a vaporizing oil combustion device equipped with
The gas chamber and the vaporizing pot are in communication with each other through a flow section consisting of a plurality of concave slits formed in a flange at the upper end of the vaporizing pot that is in contact with the bottom of the inner wall of the burner. This is related.

<Operation> By performing a well-known combustion operation, the vaporizer pot 1
The vaporized fuel gas and the combustion air are mixed in the chamber, and this mixed gas is meandered through the mixing passage 14 and further flows through the flow section 16, where it is evenly rectified by a plurality of concave slits and flows into the gas chamber 8. Therefore, the mixed gas is ejected from the flame port 6 and completely combusted.

After that, combustion continues, but the combustion flame is in the mixing cylinder 11.
The outer wall is heated and the temperature is raised, and as a result, the mixing cylinder 11
The mixed gas flowing inside is heated to a high temperature, but when it flows through the plurality of concave slits that are the circulation part 16, it evenly heats the flange part 15 of the circulation part 16, and as well as other heat conduction, it is heated to a high temperature. 1. Ensure self-heat feedback.

Of course, when the temperature of the vaporizing pot 1 rises to a predetermined temperature, the heating heater 2 is stopped from being energized.

<Example> Reference numeral 1 denotes a bottomed cylindrical vaporizing pot equipped with a heating heater 2 at the bottom, and a combustion air outlet 3 communicating with a combustion fan (not shown) and a combustion air outlet 3 on one side wall. A nozzle body 4 for ejecting fuel is located in the center, and injects fuel into the heated vaporization pot 1 and mixes the vaporized gas and combustion air to create a mixed gas.

5 is located above the vaporizing pot 1;
A burner inner wall 7 having a plurality of flame ports 6 on an upright peripheral wall, and a burner inner wall 7 so as to form a gas chamber 8 outwardly between the burner inner wall 7. 7 Burner outer wall 9 provided on the outer periphery
is located at the center of the burner inner wall 7 and the inner wall 7
It is composed of a convex mixing cylinder 11, etc., which connects the opening 10 and the lower part of the cylinder, is mounted on the vaporizing pot 1 with a space maintained therebetween, and projects upward.

The burner section 5 injects the mixed gas generated in the vaporization pot 1 from the flame port 6 to form a flame directed toward the central mixing cylinder 11 while combusting it.

Reference numeral 12 denotes a rectifying tube made of stainless steel that is provided between the vaporizer pot 1 and the burner section 5 and rectifies the mixed gas. It has an inverted flap shape that forms a rectifying passage 13 that gradually narrows toward the bottom, expanding the internal volume of the lower vaporizing pot 1, and the burner section 5 is well connected to the gas chamber 8 through the mixing cylinder 11. A meandering mixing passage 14 is formed to perform thorough mixing.

Reference numeral 15 denotes a flange portion at the upper end of the vaporizer pot 1 that comes into contact with the bottom of the burner inner wall 7 of the burner portion 5 and feeds back combustion heat to the vaporizer pot 1 as heat for vaporization. It is provided with a flow section 16 consisting of a concave slit, and constitutes a part of a mixing passage 14 that communicates the vaporizing pot 1 and the gas chamber 8.

Further, since the contact area between the burner inner wall 7 and the vaporizing pot changes depending on the size of the flow section 16, the amount of feedback can be easily determined, and a complicated structure such as the use of a heat insulating material is not required.

Reference numeral 17 denotes a flow regulating member made of a wire mesh or the like provided inside the flame port 6.

Reference numeral 18 denotes a secondary air supply port formed on the outer periphery of the mixing cylinder 11 of the burner section 5, which communicates with a secondary air chamber 19 formed on the upper outer periphery of the vaporizing pot 1, and is used to absorb combustion flowing in through the supply port 20. Air from the fan is supplied to the flame as secondary air.

Next, the operation of this embodiment of the invention will be explained.

First, the heater 2 is energized to heat the vaporizer pot 1 to the vaporization temperature, and then the fuel is injected into the vaporizer pot 1 through the nozzle body 4 and combustion air is supplied through the combustion air jet port 3. It instantly vaporizes and mixes with the combustion air supplied in the vaporizer pot 1 to form a mixed gas, which then flows into the rectifier tube 1.
The gases are rectified through the rectifying passage 13 of No. 2, mixed in the mixing passage 14, rectified in the flow section 16, and reach the gas chamber 8, where they are ejected from the flame port 6 and ignited by an appropriate ignition means to cause combustion. Once the combustion is stabilized, the combustion heat is fed back to the vaporization pot 1 through the bottom of the burner inner wall 7 of the burner section 5 and the mixed gas via the flange section 15 by heat conduction. After that, the power supply to the heater 2 is stopped and combustion can be performed only by self-heat.

Furthermore, as the mixed gas passes through the flow section 16 on the way to the gas chamber 8 via the mixing passage 14 as described above, it is further rectified by the plurality of slits in the flow section 16, that is, it is rectified once in the rectifier tube 12. The mixed gas is rectified again in the flow section 16 and ejected from the flame port 6, so this double rectification action ensures that the mixed gas is rectified and good combustion with complete combustion can always be obtained. .

<Effect of the invention> A rectifying cylinder 12 in the shape of an inverted flap is provided on the bottomed cylindrical vaporizing pot 1 equipped with a heating heater 2, and a convex mixing cylinder is provided with a mixing passage 14 kept outside of the rectifying cylinder 12. 11, and is further provided with a burner inner wall 7 which is connected to the lower part of the mixing cylinder 11 and erected from the middle, and has a plurality of flame ports 6, and a gas chamber 8 is formed between the burner inner wall 7 and the outside thereof. Burner part 5 consisting of burner outer wall 9
In a vaporizing type oil combustion apparatus equipped with the above, the gas chamber 8 and the vaporizing pot 1 are connected to each other through a plurality of concave slits formed in the flange portion 15 at the upper end of the vaporizing pot 1 that is in contact with the bottom of the burner inner wall 7. 16, it is possible to realize feedback by self-heating with an extremely simple configuration, and also to perform the rectification of the mixed gas at the same time, resulting in an optimal feedback amount and reliable rectification, ensuring good and stable flow at all times. Combustion is obtained, which also allows for optimal self-heat feedback.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view of a vaporizing oil combustion device according to an embodiment of this invention, and FIG. 2 is a perspective view of the main parts thereof. 1...vaporizing pot, 2...heater, 5...
...Burner part, 6... Burner port, 7... Burner inner wall, 8
... Gas chamber, 9 ... Burner outer wall, 11 ... Mixing tube, 15 ... Flange section, 16 ... Distribution section.

Claims (1)

[Scope of utility model registration request] A rectifying cylinder 12 in the shape of an inverted flap is provided on a bottomed cylindrical vaporizing pot 1 equipped with a heating heater 2, a convex mixing cylinder 11 is provided with a mixing passage 14 maintained outside the rectifying cylinder 12, and a convex mixing cylinder 11 is provided. A burner inner wall 7 connected to the lower part of the mixing cylinder 11 and erected from the middle thereof has a plurality of flame ports 6, and a burner outer wall 9 forming a gas chamber 8 between it and the outside of the burner inner wall 7. Burner part 5 consisting of
In a vaporizing type oil combustion apparatus equipped with the above, the gas chamber 8 and the vaporizing pot 1 are connected to each other through a plurality of concave slits formed in the flange portion 15 at the upper end of the vaporizing pot 1 that is in contact with the bottom of the burner inner wall 7. A vaporizing oil combustion device characterized by communicating through a portion 16.