JPS58224211A - Kerosene stove with rotary atomizer - Google Patents

Abstract

PURPOSE:To reduce the occurrence of execessive heating, damage by burning, vibration and the creation of noises, by a method wherein a fixed preheating cylinder is caused to share the function of the preheating cylinder with a rotary tube located inwardly thereof. CONSTITUTION:The kerosene drops on a fed kerosene receiving plate 7 which forms an annular shelf plate, protruding to the inner periphery of a cap-shaped rotary cylinder 10. The receiving plate 7 is brought to a rotating state and the kerosene is continuously fed, whereby the kerosene is uniformly supplied on the receiving plate 7. However, the kerosene dropped on the receiving plate 7 does not stay thereon for a long time, it is shortly scattered outward by dint of a centrifugal force and an air current to be adhered to the inner periphery of a preheating cylinder 5. The kerosene lowered along the inner wall of the preheating tube 5 drops when it reaches the lower end of the vertical part of a wall, and drops on a brim part 10a of the cap-shaped rotary cylinder 10. It flows outward by dint of the centrifugal force and the air current, and is scattered and atomized outward through the wire net or slit group of an atomizing ring 9 secured to the upper surface of the brim part 10a with a fine gap provided therebetween. This enables to reduce the occurrence of excessive heating, damage by burning, vibration and the creation of noises.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a kerosene stove with a rotary atomizer, which has a built-in motor and uses a rotary plate to disperse kerosene, mix air and moisture, form a mist, and ignite it.

This is an improved type of fuel that burns, and when the temperature of the preheating cylinder in the center of the combustion chamber rises, the heat is used to vaporize kerosene in advance and burn it with less force.

Conventional stoves of this type rotate a cap-shaped preheating tube in the center of the combustion chamber. The kerosene moving along the inner surface of the preheating cylinder reaches the open end of the preheating cylinder and is ignited when it is scattered by centrifugal force and airflow.

In this conventional method, the attachment part fixed to the motor shaft at the center of the cap-shaped preheating head is directly heated by the combustion gas, and the heat is transmitted to the motor, causing overheating and burnout of the motor.

In addition, the preheating tube that repeatedly heats up and cools down becomes deformed due to thermal distortion.
Rapid rotation promotes deformation, and eccentric rotation causes movement. In addition, the method of filling the center of the kerosene preheating cylinder and dispersing it in all directions is when the combustion chamber is used with the combustion chamber on its back.

Kerosene flows down along the shaft and falls inside the motor.

In order to fundamentally solve the above-mentioned problems, this invention
It was decided not to rotate the preheating tube. That is, conventionally,
The function of the preheating cylinder was to perform two functions: preheating and scattering kerosene.The former is divided into a fixed preheating cylinder, and the latter is divided into a rotating cylinder hidden inside the preheating cylinder. The functional and structural problems associated with this modification were resolved.

Next, the configuration and embodiments of the present invention will be described with reference to the drawings.

Figure 1.2 shows an embodiment of the invention. The lower part consists of a combustion chamber l surrounded by a bowl-shaped double wall with countless crater holes 3 on the inner wall, and a cap-shaped preheating node 3 standing in the center of this combustion chamber q.
．． The head is fixed at the center of the shaft end of the motor shaft 6 covered by the preheating tube S and inserted into the center of the interior, and the upper part includes an oil receiving plate 7 and an opening g that receives the oil and scatters it to the inner circumference of the preheating tube S. , and the lower part also has an opening gα and an atomizing ring 9 that scatters and atomizes the oil that has adhered to the inner periphery of the preheating cylinder 3 and descended to form atomized particles. The air blower tube /l that has entered the inner concentric position 4 of the tU10, the oil supply pipe 12 that supplies oil to the oil supply receiving plate 7 through this air blower tube //. and an ignition chamber /j between the deep part of the combustion chamber inner wall and the preheating cylinder base peripheral wall /lI dotted with atomized oil outlet holes /3.

In addition, in this embodiment, the stove outer peripheral plate supporting the combustion chamber l on its back/1. The inside of the outer circumferential plate is partitioned into upper and lower parts, and two heat-insulating spaces are placed between the outer shell/bottom of the combustion chamber and the partition plate 19, and the motor J is installed under the partition plate 19.

A cap-shaped rotary cylinder 10 is placed on the upper end of the motor information 6, and a wind lug is placed on the lower end.
L2/ is attached.

The outside air entering below the partition plate 19 from the air intake force 1 (not shown) enters the heat shielding space λ through the air outlet hole 23 of the plate 19 due to the air intake 2/, and most of it flows into the blower pipe /l. opposite,
A portion enters the air intake lower 7 which communicates with the ignition chamber/evening air outlet/7a. The air outlet opening in the ignition chamber/7a, the heat-insulating space, and the air intake opening opening in the second part 17 is an integrated stepped hollow cylindrical body/7J) with upper and lower openings. This cylindrical body /7 also functions as a spacing fixing bolt that fits a nut at the tapered end thread and maintains a constant distance between the bottom plate of the combustion chamber wall 1 and the bottom plate of the bowl-shaped double wall 1.

Next, the structure of each part will be explained in detail along with an explanation of the function of this embodiment.

First, when the motor 20 is started and a valve (not shown) of the oil supply pipe 1 is opened, kerosene falls onto the oil supply receiving plate 7 which projects as an annular shelf plate on the inner periphery of the cap-shaped rotary tube /θ.

This receiving plate 7 rotates and oil is supplied continuously, so is it a receiving plate? -) - Evenly lubricated. The kerosene that has fallen onto the support plate 7 does not soak for a long time, but is blown outward by centrifugal force and air flow and adheres to the inner periphery of the preheating cylinder S. Note that the receiving plate 7
In order to strengthen the centrifugal force generated by rotation, the designer is responsible for attaching a wire mesh or the like similar to the atomizing ring 9 to the surface of the receiving plate 7, or attaching radial blades.

Preheat m to catch scattered kerosene! ;In this case, on the inner wall,
A single horizontal groove is provided so that the scattered oil hits this groove and spreads laterally before descending.

The oil that has descended along the inner wall of the preheating cylinder S reaches the vertical lower end of the wall and drips, and falls onto the flange 10 (l) of lo during the hat-shaped rotation.Then, due to centrifugal force and air flow pressure, the oil flows outward and Part 1
Atomization is carried out by scattering outward through the wire mesh or slit of the atomizing ring t, which is solidified with a narrow gap on the upper surface of 0a. The reason why the atomization ring 9 has an L-shaped cross section is to guide the air flow to the above-mentioned slits.

The circumferential wall of the preheating cylinder S has a large diameter only at the base in order to surround the flange tOa during rotation, and the inside of this base circumferential wall serves as a pool of atomized oil. Therefore, coarse particles of oil adhere to the inner wall or fall and accumulate on the bottom of the combustion chamber, and together with the excess oil, they drain into the oil drain hole 2A.

The core returns to the oil tank after two steps.

The completely atomized (atomized) oil floats and exits from the atomized oil outlet holes 13 scattered on the peripheral wall/Q to the ignition chamber/left. In this embodiment, oil outlet holes 13α are also provided in some places in the lower part of the peripheral wall/Q so that some of the accumulated oil can flow into the ignition chamber/. The temperature is set to a level where combustion is in full swing and the temperature of the preheating cylinder S is sufficiently raised to allow vaporization.

The atomized oil that came out to the ignition chamber/S is transferred to the ignition device/6 in Figure 2.
The part closest to the ignition ignites first, and then the flame spreads into the room. This embodiment promotes half-combustion of atomized oil and prevents flame from spreading throughout the room, especially in the ignition chamber/! The air exclusively for i is taken in from the heat-insulating space 22 near the windmill via the hollow cylinder body /7. The air outlet/7σ of the cylindrical body 17 is oriented in the circumferential direction as shown in FIG. 2, and the air flow rotates along the dowel-shaped wall of the heating chamber/S. Therefore, even before atomization, which is disadvantageous compared to vaporized oil, it ignites instantaneously in the entire heating chamber/left, and with sufficient oxygen supply, it burns without the risk of soot generation. The combustion gas advances to the upper part of the combustion chamber 1 and adds air from the inner wall crater hole 3 to raise the temperature to the point where it is completely combusted.

When the preheating cylinder S is raised, the kerosene that descends on its inner periphery is vaporized on the way and no longer drips onto the flange 10α during rotation. The vaporized oil enters between the inner and outer walls from the lower opening ga of the rotating cylinder 10 through the wide opening at the bottom center of the bowl-shaped double wall l along with the air flow, and is ejected from the crater hole 3, immediately igniting the combustion chamber with the heat inside. It turns into a blue four-colored flame.

A guide ring 29 for pushing the swirling airflow inward is fitted around the outer periphery of the ignition chamber 15 so that the swirling airflow rising from the ignition chamber/S does not disturb the flame coming out of the crater hole 3.

As explained above with reference to one embodiment, the main feature of this invention is that the functions of the conventional rotating preheating (vaporization or evaporation) cylinder are shared between a fixed preheating cylinder and a rotating cylinder inside the fixed preheating cylinder. , it can be varied and applied in a variety of ways depending on the designer's known techniques without changing its gist.

This invention completely solves the problems of the conventional motor shaft, which is directly connected to the motor shaft and rotates at high speed, which is prone to thermal distortion due to heating and cooling. The cap-shaped rotating tube that atomizes kerosene is covered by a preheating tube and does not come into contact with combustion gas, so a lightweight member is sufficient.

Vibration and noise are also reduced.

Because the rotating part was covered by a preheating cylinder, it was no longer possible to directly scatter the kerosene adhering to the rotating part into the combustion chamber as in the past, but this was done by installing atomized oil outlets on the peripheral wall of the base of the preheating cylinder. By doing so, only before the atomization of floating fine particles is released into the ignition chamber, better half-combustion than before was achieved. This eliminates almost all the soot and smoke generated during semi-combustion, making the transition to vaporization combustion smooth and quick, and making it possible to start combustion with a minimum amount of oil.

In other words, this invention not only reduces malfunctions and defects of kerosene stoves with rotary atomizers.

This also improved usability.

[Brief explanation of drawings]

FIG. 1 is an elevational view of one embodiment of the invention, and FIG. 2 is a perspective view taken along the line X-x in FIG. 1. Patent applicant: Og 2 Metal Co., Ltd. Agent: Patent attorney Fuku 1) Kenzo i'i""-
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Claims (1)

[Claims] A combustion chamber surrounded by a bowl-shaped double wall with numerous crater holes on the inner wall;
A cap-shaped preheating tube stands in the center of this combustion chamber. Covered by this preheating cylinder, the head is fixed at the center of the shaft end that has entered the center of the interior, and the upper part has a receiving plate for oiling, which prevents the oil from scattering to the inner periphery of the preheating cylinder, and the lower part has an opening. There is also an atomization ring cap-shaped rotary tube that scatters the oil that has fallen and adhered to the opening and the inner periphery of the preheating tube. and an ignition chamber between the inner wall of the combustion chamber and the peripheral wall of the base of the preheating cylinder dotted with atomized oil outlet holes. Oil stove for rotating nitrification equipment.