JPH0518564Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] This invention is suitable for oil combustors where the internal volume of the oil tank is reduced by housing the combustion wick inside the oil tank during fire extinguishing operations.

[Conventional technology]

In conventional wick type oil combustors, where the combustion wick is housed in an oil tank to extinguish a fire, it is necessary to expel the air equivalent to the volume of the fallen wick out of the oil tank. In order to smoothly ignite and extinguish the ignition and adjust the combustion amount by moving the wick up and down, it is impossible to block air flow between the oil tank and the burner, and the air is forced out of the oil tank by the wick falling. Oil gas cannot flow out only through the small communication hole formed in the receiving part that houses the valved cap of the cartridge oil tank, which communicates the oil tank with the outside air, and air containing petroleum gas is allowed to flow into the burner from the gap above and below the core in the core housing cylinder. Trouble may occur where it erupts and sends up flames.

For this reason, if the communication hole provided in the saucer that communicates the inside of the oil tank with the outside air is enlarged to allow this air to flow out from the communication hole, it is possible to prevent the flame phenomenon when lowering the wick, but during normal combustion A large amount of air enters the oil tank through the communication hole and flows into the burner through the wick insertion gap, which may cause abnormal combustion or make it impossible to control combustion. Also,
If the core insertion gap in the core housing tube is narrowed to prevent air circulation, the core cannot move up and down smoothly, requiring a strong operating force, resulting in extremely poor operability.

Products with such poor operability cannot be commercialized, and normally the core is able to move up and down smoothly, a small communication hole is made in the saucer, and a large diameter opening is separately installed in the oil tank for gas venting. Utility Model Publication No. 53-36890 is known to have a configuration in which the circuit is always closed using an opening/closing plate.
By the way, the air in the oil tank contains a large amount of petroleum gas, and when the oil level rises, such as when storing a wick, oil spray is generated.
For this purpose, a structure is proposed in which a pipe is attached to the opening and oil droplets are attached to the inner wall of the pipe while the gas escapes from the inlet side to the outlet side to prevent oil droplets from blowing out. It is well known as being used in Utility Model Publication No. 57-36891 and commercially available products.

Also, when the length of the pipe is short compared to the inner diameter, it is not possible to get all the oil droplets to adhere to the inner wall of the pipe, so it is necessary to attach an opening/closing plate to the tip of the pipe.
JP-A-50-124230 discloses a structure in which the outside of the opening/closing plate is covered with a detachable cap and gas is exhausted from an exhaust hole provided in the cap.

[The problem that the idea aims to solve]

By the way, in the case of a general oil combustor that allows the wick to move up and down smoothly and lowers the wick instantaneously using the stored force of a spring, the gas vent opening in the oil tank has a large area and requires an on-off valve. Even if the length of a large-diameter pipe is very long, the typical pipe length of 3 to 4 cm cannot completely prevent oil splashes, and as mentioned above, a cap is necessary, and if When oil splashed outside the oil tank, the top surface of the tank was wetted with oil, and when the oil vaporized due to the heat of combustion, it caused a strong odor.

Furthermore, when cotton lint adhered to the top surface of the oil tank, there was a risk that the lint that had absorbed the oil would catch fire and cause a fire.

[Means to solve problems]

This invention relates to a structure that prevents oil splashes from coming out during fire extinguishing operations in a more reliable manner, instead of preventing oil splashes from pipes. The core accommodating part 3 is made high and the other part is low with an inclined surface 4 interposed in between, and the inclined surface 4 has an opening 5 and a bearing plate of an opening/closing plate 6 covering the opening 5 slightly above the opening 5. 7 is attached, and the upper part of the bearing plate constitutes an opening/closing plate cover 8 which is folded over the opening/closing plate 6, and the inner wall surface of the oil tank 1 facing the opening 5 is formed with an L-shaped cross section, and the upper end An oil cutting plate 10 is installed on the inner wall surface of the oil tank 1 at the upper part of the inclined surface 4, and a slit is provided between the end of the oil cutting plate 10 extending horizontally and the low upper surface plate 2 of the oil tank 1. The oil tank of the oil combustor was constructed by providing an air hole 9 formed in the shape of a shape, and providing an oil recovery space A having a triangular cross section between the inclined surface 4 of the top plate 2 of the oil tank 1 and the oil cutting plate 10. It is something.

In addition, as an example of the opening/closing plate cover 8, the bearing plate 7
and the opening/closing plate cover 8 are integrally formed with a slit-shaped notch 11 in between, and after the bearing plate 7 is fixed to the oil tank 1, the opening/closing plate cover 8 is inserted above the opening/closing plate 6 through the slit-shaped notch 11. It is located.

[Explanation of action]

In this device, which has the above-mentioned configuration, when most of the combustion wick is drawn into the oil tank 1 due to wick descent, the internal pressure of the oil tank 1 becomes high and the opening/closing plate 6 blocking the opening 5 is pushed open. , the increased pressure can be released to the outside.

The opening 5 does not open directly into the oil tank 1, but opens into an oil recovery space A having a triangular cross section formed by an L-shaped oil cutting plate 10 and an inclined surface 4. The space A has an oil tank top plate 2 and an oil cutting plate 1.
The oil tank 1 is connected to the oil tank 1 by the air port 9 formed between the
It communicates with

Since the air hole 9 is formed in the shape of a slit between the horizontal end of the L-shaped oil cutting plate 10 and the low top plate 2 of the oil tank 1 which is located away from the core housing part 3, the opening area can be reduced even in a narrow gap. It was a big thing,
The internal pressure of the oil tank 1 is ensured to escape through the opening 5.

Furthermore, even if the oil surface in the oil tank 1 is rippled during wicking and the droplets are scattered, the part where the droplets are generated is near the wick storage part 3, and the air hole 9 opens in the opposite direction to the direction in which the droplets fly. Therefore, the droplets are difficult to fly into the air holes 9. In addition, since the oil cutting plate 10 is formed in an L shape, and the vertical part faces the air hole 9, and the opening 5 is formed in the inclined part 4, the droplets that jump into the oil recovery space A from the air hole 9 are L-shaped. It is stopped by the vertical part of the oil drain plate 10 and no longer comes out directly from the opening 5.

On the other hand, the inclined part 4 of the oil tank top plate 2 can easily constitute the oil recovery space A by the oil cutting plate 10 having an L-shaped cross section, and since the inclined part 4 is provided with an opening 5, the opening 5 Due to the simple configuration in which the bearing plate 7 is attached slightly above the opening/closing plate 6, the opening/closing plate 6 can always close the opening 5, and there is no possibility that the large diameter opening 5 is left open during normal use. Ta.

Furthermore, if there are large particles in the petroleum gas flowing to the outside along with the airflow coming out of the opening 5, they can be collected by the opening/closing plate cover 8, so as not to cause oil to adhere to a wide area over the entire top plate 2 of the oil tank 1. That thing is gone.

[Explanation of Examples]

Reference numeral 1 designates an oil tank of an oil combustor, and 2 designates an upper surface plate of the oil tank 1, in which a wick accommodating portion 3 is formed high and the other portions are formed low, with an inclined surface 4 interposed in the middle. Reference numeral 5 denotes an opening formed in the inclined surface 4, and 6 is an opening/closing plate that normally covers the opening 5. A bearing plate 7 of the opening/closing plate 6 is fixed slightly above the opening 5. Reference numeral 8 denotes an opening/closing plate cover which is formed integrally with the bearing plate 7 and the slit-like notch 11, and can be folded back through the slit-like notch 11. For this reason, the opening/closing plate cover 8 is positioned above the opening/closing plate 6, and the bearing plate 7 is placed above the opening/closing plate 6.
The opening/closing plate 6 is prevented from coming off between the opening/closing plate cover 8 and the opening/closing plate cover 8.

Reference numeral 10 denotes an oil cutting plate having an L-shaped cross section and installed inside the oil tank 1 so as to look into the opening 5. The L-shaped oil cutting plate 10 is installed on the inner wall surface of the upper part of the inclined surface 4 of the oil tank 1. A triangular oil recovery space A is formed between the oil cutting plate 10 and the inclined surface 4. The tip of the horizontal part of the oil cutting plate 10 extends below the lower part of the top plate 2 of the oil tank 1 through a narrow gap, and a slit-shaped air hole is formed between the top plate 4 and the oil cutting plate 10. 9 is formed.

Reference numeral 12 denotes an oil receiver provided on the lower upper plate 2 below the opening 5, and if oil spills out from the opening 5, it will collect in the oil receiver 12 and will not spread over the entire surface of the upper plate 2. 13 is a wick storage cylinder provided in the wick storage part 3 of the oil tank 1; 14 is a combustion cylinder mounted on the wick storage cylinder 13; a combustion wick (not shown) is held in the wick storage cylinder 13, and its upper end is combusted. It looks into the cylinder 14, and the lower end is submerged in the oil in the oil tank 1. Reference numeral 15 denotes a wick upper and lower knob, and the fire extinguishing operation is performed by rotating the wick upper and lower knob 15 manually or by accumulating pressure such as a spring to pull the combustion wick down into the oil tank 1.

[Effect of idea]

As mentioned above, in this invention, by devising the mounting structure of the oil cutting plate, despite the compact structure, oil droplets will not come out from the opening even if the internal pressure of the oil tank increases during core lowering. Since the top of the oil tank does not get wet, there is no risk of oil seeping into the dirt on the top of the oil tank and causing a bad odor or a fire, unlike conventional products. I was able to prevent the outbreak.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway front view of an oil combustor equipped with this device, Fig. 2 is a sectional view of the main part thereof, and Fig. 3 is a parts diagram. DESCRIPTION OF SYMBOLS 1...Oil tank, 2...Top plate, 3...Core accommodating part, 4...Slanted surface, 5...Opening, 6...Opening/closing plate,
7...Bearing plate, 8...Opening/closing plate cover, 9...Air port, 10...Oil drain plate, A...Oil recovery space.

Claims (1)

[Claims for Utility Model Registration] (1) The top plate 2 of the oil tank 1 of the oil combustor is formed with a wick accommodating portion 3 high and the other portions low with an inclined surface 4 interposed in the middle, and the inclined surface 4 is An opening 5 and a bearing plate 7 of an opening/closing plate 6 covering the opening 5 are attached slightly above the opening 5, and the upper part of the bearing plate 7 constitutes an opening/closing plate cover 8 which is folded over the opening/closing plate 6. On the inner wall surface of the oil tank 1 facing the opening 5, an oil cutting plate 10 is provided, which has an L-shaped cross section and whose upper end is attached to the inner wall surface of the oil tank 1 above the inclined surface 4. An air hole 9 formed in the shape of a slit is provided between the end of the oil cutting plate 10 extending to the bottom and the low top plate 2 of the oil tank 1.
An oil tank for an oil combustor, characterized in that an oil recovery space A having a triangular cross section is provided between an inclined surface 4 of a top plate 2 and an oil cutting plate 10. (2) The bearing plate 7 and the opening/closing plate cover 8 are integrally formed with a slit-like notch 11 in between, and after the bearing plate 7 is fixed to the oil tank 1, the opening/closing plate cover 8 is inserted through the slit-like notch 11. An oil tank for an oil combustor according to claim 1, wherein the oil tank is located above the opening/closing plate 6.