JPS5888539A - Petroleum combustion device - Google Patents

Abstract

PURPOSE:To improve the safe property thereof by a method wherein a fire extinguishing plate, starving and extinguishing remaining flame by moving to the overturning direction upon overturning, is provided together with a wick lowering mechanism being operated upon overturning of the wick type petroleum stove or the like. CONSTITUTION:When the stove is overturned, a combustion cylinder 4 is removed out of a wick guide tube 2 and a wick outer tube 3 to receive a wick 1 into the wick guide tube 2 and the wick outer tube 3, air stream to an evaporating section is intercepted and the temperature of the wick 1 is lowered. Simultaneously, the fire extenguishing plate 5 moves into the overturning direction along a guide pin 6 to cover the wick guide tube 2 and the wick outer tube 3 of the overturning direction into a semi-closed condition. According to this method, the flame is brought into a suffocated condition and is extinguished quickly. According to such constitution, the fire extinguishing time upon the overturning of the stove may be shortened, the fire may be extinguished surely and the safe property of the stove may be improved.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an oil combustor that uses a lamp wick of an kerosene stove or the like as a means of vaporizing fuel, and an object of the present invention is to provide a safe oil combustor that extinguishes the fire in a short time when it falls over and has little risk of fire. With the goal.

Oil burners that use a wick as a vaporizer can be used as home heaters such as portaple oil stoves because they have many advantages, such as requiring no power source, being small and lightweight, making them easy to move, having little trouble, and being inexpensive. is the mainstream. However, the device has an oil tank inside to accommodate the flammable fuel light.
Due to vibrations and impacts caused by earthquakes, contact, etc., and falls, abnormal combustion may occur, causing oil in the tank or leaked oil to ignite, resulting in a fire. A fire extinguishing device is attached. Conventionally, the following two methods have been used as fire extinguishing means.

(1) One-side shutter system This method detects vibrations by the amount of movement of the model number, and in normal use, the shutter, which is stored in a spring and held by a hook, is released from the hook by moving the model number, and the upper part of the lamp wick is moved. This is a method of extinguishing fire by suffocation by blocking the airflow with a shutter. ) Wick lowering method This method detects vibrations by the amount of movement of the model number, and during normal use, the wick is stored with a spring or the like and is held by the hook.The wick is released from the hook by moving the model number, and the wick is guided. In this method, the wick is lowered into the wick storage area formed by the gap between the wick and the outer tube, and the wick is extinguished by suffocation.

However, in the one-shutter type (11), the structure of the movable part is complicated and the cost is high.

Reliability of fire extinguishing decreased due to f2+ air leak.

Bell) The capacity of the shutter housing is large.

Furthermore, the following problems with the core lowering method are: (1) The extinguishing time in the normal position is short, but the extinguishing time in the event of a fall is long.

There were other drawbacks.

The present invention solves the above-mentioned drawbacks and extinguishes the fire in a short time both in the normal position and when falling.

By the way, the reason for the drawback of the wick lowering method is that the firing tube is placed on the wick, and the residual vaporized gas generated when lowering the wick (the amount of heat accumulated due to the heat capacity of the wick and metal fittings) remains inside the wick even after the wick is lowered. Normally, the extinguishment time is quick because the gas (gas that is vaporized from the fuel impregnated in the lamp) is quickly removed from the vicinity of the wick by the draft generated by the combustion tube, but in the event of a fall, the combustion tube cannot separate from the vaporization section. It has been confirmed through experiments that there is less draft in the reactor, the ability to remove residual gas is reduced, and the residual gas ignites and burns, causing combustion to continue in the vaporization section one level below.

The present invention completely extinguishes the remaining flame in a very short time by cutting off the air source using a fire extinguishing plate that moves in the direction of overturning to extinguish the flame remaining when the wick is extinguished.

An embodiment of the present invention will be explained below with reference to the drawings.

It is a cylindrical wick, and although it is omitted in the diagram, its lower end is soaked with the fuel in the fuel tank located below. 2 is a cylindrical wick guide tube, and 3 is a cylindrical wick outer tube. So, wick 1
moves up and down in the gap between the wick guide tube 2 and the outer wick tube 3, and during combustion, the tip (vaporizing section) of the wick is moved between the inner and outer flame tubes a of the combustion tube 4.
It is exposed between a and ab, and when extinguishing a fire, it is lowered into the gap between them.

The inner and outer flame tubes aa and ab each have a large number of small holes.

6 is a fire extinguishing plate, which is connected to the core guide tube 2 by the guide pin 6.
This prevents them from leaving. During normal combustion, the second
As shown in FIGS. 3 and 3, the fire extinguishing plate 5 is located concentrically above the wick guide cylinder and housed inside the combustion cylinder 5.

On the other hand, in the event of a fall, as shown in Figures 4 and 5, fire extinguishing board 5
moves in the overturning direction due to its own weight, contacts the core outer cylinder 3, and stops.

Next, the action will be explained.

In FIG. 1, fuel is sucked up by the capillary action of the lamp wick 1 and reaches the tip (vaporization part) of the lamp wick 1. When it is ignited from the outside by an appropriate means, it is vaporized by the heat and the air flow supplied from the small holes in the combustion tube 4, and thereafter it continues to vaporize by the combustion heat and burns while mixing with air.

Next, when extinguishing a fire, there are two types of extinguishing operations.In the normal position, the tip of the wick 1 is lowered and stored in the gap between the wick guide tube 2 and the wick outer tube 3, and the air flow to the vaporization section is cut off. However, when the fire is extinguished by falling, the combustion tube 4 separates from the wick guide tube 2 and the wick outer tube 3, and the wick 1 is separated from the wick guide 2 and the wick outer tube. 3 and blocks the air flow to the tip (vaporizing part), and rapidly lowers the temperature of the wick 1 to rapidly reduce vaporization. In addition, in this embodiment, by moving the fire extinguishing plate 5 in the overturning direction, a semi-enclosed chamber formed by the core guide cylinder 2, the outer core cylinder 3, and the fire extinguishing plate 5 is formed in the overturning direction part. After the lamp wick 1 has descended, air is prevented from flowing into and discharging from the upper portions of the wick guide cylinder 2 and the wick outer cylinder 3, which serve as combustion parts for the fuel gas that is vaporized by residual heat due to the heat capacity of the lamp wick. Therefore, in the combustion section where the supply of air is blocked, oxygen necessary for combustion is no longer supplied, and combustion is stopped due to suffocation.

As described above, the present invention has (1) the fire extinguishing board itself having the ability to detect overturning, and no other overturning detection mechanism is required.

(2) Reliably works in areas where residual fires occur in the event of a fall.

◆) 1. Adverse effects during normal combustion and normal extinguishing 11
! ＋No.

(4) Does not require storage space.

It has many features such as this, and can shorten the time it takes to extinguish a fire in the event of a fall, making it extremely effective.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of the main part showing one embodiment of the present invention, 1.
...Light wick, 2... Core guide tube, 3...
- Core outer cylinder, 4... combustion cylinder, 5... fire extinguishing board. Name of agent Patent attorney F. Nakao, Toshio, and 1 other person Figure 1

Claims (1)

[Claims] A combustion chamber consisting of a porous inner flame tube and an outer flame tube, a wick that can be moved up and down, a mechanism that lowers the wick in the event of a fall, and a fire extinguishing board that moves in the direction of the fall to suffocate and extinguish any residual flame. Oil burner installed.