JPH0219363B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an oil combustor that is used by moving the wick up and down.

Configuration of conventional example and its problems In a conventional oil combustor with an upper and lower wick, as shown in Figures 8 to 10, the wick 2 with the wick holder 1 is lowered ( When extinguishing a fire using the solid line in Figure 9, the lowering of the wick 2 causes an increase in the internal pressure of the fuel tank 3, causing the air in the fuel tank 3 to be released upward from the guide tube 4 that guides the wick 2 in a vertically movable manner. In order to prevent the flame from rising temporarily, it is already known to provide a valve device 5 for releasing the pressure inside the fuel tank 3 to the outside of the fuel tank 3.

When this valve device 5 is provided, when the lamp wick 2 is lowered to extinguish the fire, the lamp wick 1 is rapidly lowered to the lower part 3a of the fuel tank 3, and the oil of the fuel 6 supplied in the fuel tank 3 is removed. By striking the surface 6a, the fuel 6 is scattered 6b on the inner wall of the fuel tank 3, and also on the inner surface of the outer core cylinder 7 located above the fuel tank 3 and provided with the valve device 5.
This wick outer cylinder 7 is provided with a fire extinguishing chamber 8 that communicates with the upper and lower spaces 2a of the lamp wick 2, and the fire extinguishing chamber 8 is provided with a fire extinguishing valve 9 that opens and closes between the external space and the fire extinguishing chamber 8. The lower end of this fire extinguishing valve 9 is in contact with a metal fitting 10 attached to the wick holder 1, and when the wick is raised, the fire extinguishing valve 9 is pushed up by the metal fitting 10 of this wick holder 1, and fresh water is poured into the fire extinguishing room 8. When extinguishing a fire by letting in air and lowering the wick 2, the wick 2
Leading petroleum vapor that continues to vaporize from the upper end into the fire extinguishing chamber 8 and mixing it with fresh air in the fire extinguishing chamber 8,
By burning explosively, the blast wave can burn the wick 2.
It is designed to extinguish the fire in a short time by blowing out any remaining flames at the top. On the other hand, the valve device 5 includes a communicating part 11 attached to the core outer cylinder 7 and communicating with the inside of the fuel tank 3, a seat part 12 provided on the outer periphery of the tip of the communicating part 11, and a seat part 12 provided on the upper left and right sides of the outer periphery of the tip of the communicating part 11. L-shaped protruding piece 13, communication part 1
1, and a valve plate 15 that closes to the seat part 12 under its own weight and closes the communication part 11 under normal conditions. A protrusion 16 is provided so that the fuel tank 3 can freely rotate outward, and opening and closing of the valve plate 15 prevents an increase in internal pressure within the fuel tank 3. The above-mentioned scattering of the fuel 6 due to the lowering of the lamp wick 2 causes the fuel 6 to be scattered even to the inner wall of the communication part 11 of the valve device 5 attached to the wick outer cylinder 7, and the fuel 6 is scattered from the communication part 11 to the seat part 12 due to capillary action.
As a result, an oil film is formed between the seat portion 12 and the valve plate 15, which prevents the valve plate 15 of the valve device 5 from opening due to the increase in internal pressure in the fuel tank 3 when the wick 2 is lowered, causing the valve plate 15 to operate. There was a problem that it stopped working.

Purpose of the Invention The present invention has been made in view of the above-mentioned problems, and is provided with a valve device that releases the pressure increased in the fuel tank due to the lowering of the wick during extinguishing. The first purpose is to prevent the fire valve from becoming inoperable due to the effects of fire, and the second purpose is to enable the opening and closing of the fire extinguishing valve for shortening the fire extinguishing time with a simple and rational configuration.

Structure of the Invention In order to achieve the above object, the present invention has a structure in which oil does not scatter to the valve device side by bending one end of the wick holder that holds the lamp wick close to the inner wall surface of the fuel tank. In order to achieve the second object, the bent piece of the wick holder is arranged to face the fire valve.

DESCRIPTION OF EMBODIMENTS The present invention will be explained below based on the drawings. 2
Reference numeral 1 denotes a fuel tank, 22 a wick guide tube erected in the fuel tank 21, and 23 a lamp wick having a wick holder 24, which is guided by the wick guide tube 22 so as to be vertically movable. The upper end of the core holder 24 is bent close to the outer peripheral side wall 21a of the fuel tank 21 to form a flange 24a for preventing oil scattering.
Then, by rotating the knob 25a fitted into the core adjustment shaft 25, the pinion 25 at the tip of the core adjustment shaft 25 is rotated.
b and a gear such as a rack 24b provided on the lead holder 24 to move it up and down. 26 is the fuel tank 21
The wick outer cylinder located at the top provides the space 2 above and below the wick 23.
An explosion fire extinguishing room 28 is provided which communicates with 7. This explosion fire extinguishing chamber 28 is provided with a valve body 29 that opens between the explosion fire extinguishing chamber 28 and the external space during combustion, and opens between the explosion fire extinguishing chamber 28 and the external space during extinguishing. The lower end of the flange 2
It is set to face 4a. 30 is a valve device attached to the side wall of the outer core cylinder 26, and includes a cylindrical communication portion 31 that communicates with the inside of the fuel tank 21;
A seat portion 32 provided on the outer periphery of the tip of this communication portion 31, and L-shaped protruding pieces 3 provided on the upper left and right sides of the communication portion 31.
3. It consists of a retaining piece 34 provided above the communication part 31, and a valve plate 35 that comes into close contact with the seat part 32 under its own weight to close the communication part 31 under normal conditions. A matching locking protrusion 36 is provided, which can freely rotate outward, thereby opening and closing the communicating portion 31, so as to release the increased pressure in the fuel tank 21 due to the sudden descent of the lamp wick 23. It's summery.

In the above configuration, when the wick 23 is lowered from the normal combustion state as shown in FIG. 6 to extinguish the fire,
The wick 23 descends vigorously to the lower part 21a of the fuel tank 21, hits the oil surface 37a of the fuel 37 supplied in the fuel tank 21, and at the same time hits the inner wall of the fuel tank 21 and the inner wall of the wick outer cylinder 26. The fuel 37 is scattered. However, the wick 2
A flange 24a for preventing oil scattering is provided at the upper end of the core holder that holds the fuel 37, which is bent to near the outer peripheral side wall 21a of the fuel tank 21, so that the scattered fuel 37 is received by the flange 24a. Therefore, the fuel 37 does not scatter 37b onto the inner wall of the core outer cylinder 26 located at the upper part of the fuel tank 21. As a result, the fuel 37 reaches the inner wall of the communication portion 31 of the valve device 30 attached to the outer core cylinder 26.
There is no scattering.

As the wick 23 descends, the fuel tank 21
The internal pressure increases, and the pressure is released upward from the core guide cylinder 22 as shown by arrow G, passes through the communication portion 31 of the valve device 30, rotates the valve plate 35 outward, and is released into the external space.

Next, in this oil combustor, the end of the valve body 29 is opposed to the flange portion 24a of the wick holder 24, so when the wick 23 and the wick holder 24 rise, the flange 24a for preventing oil scattering also moves as shown in FIG. The valve body 29 can be opened by rising like a chain, and can be closed by lowering the lamp wick 23 and the wick holder 24. Therefore, the valve body 29 can be opened and closed without installing a dedicated valve opening/closing fitting 10 as in the conventional example, and when extinguishing a fire by lowering the wick 23, vaporization continues from the upper end of the wick 23. Petroleum vapor is introduced into the explosion fire extinguishing chamber 28, mixed with fresh air in the explosion extinguisher chamber 28, and burned explosively, thereby extinguishing the remaining flames remaining at the upper end of the wick 23 with a blast wave and extinguishing the fire in a short time. You can also do that.

Effects of the Invention As described above, according to the present invention, it is possible to prevent the oil in the fuel tank from scattering toward the valve device due to the lowering of the wick when extinguishing a fire, and thereby to ensure the operation of the valve device. , can prevent pressure rise in the fuel tank. Furthermore, since the opening/closing operation of the valve body installed in the explosion fire extinguishing room is performed using a prevention plate that prevents oil from scattering toward the valve device side, the configuration for shortening fire extinguishing time is simpler and more rational than before. It can be made into something.

[Brief explanation of drawings]

Fig. 1 is a front view with the front side open showing the oil combustor of the present invention, Figs. 2 and 3 are sectional views of essential parts showing the operating state of the device during fire extinguishing, and Fig. 4 is a valve of the same device. A sectional view of the device, FIG. 5 is a perspective view of the main part of the valve device of the same device, FIG. 6 is a sectional view of the main part showing the relationship between the core holder and the valve body of the device, and FIG. 7 is the core holder of the device Fig. 8 is a front view of a conventional oil combustor with the front side open, Fig. 9 is a cross-sectional view of the main parts showing the operating state of the device during fire extinguishing, and Fig. 10 is a valve of the same device. FIG. 2 is a perspective view of the main parts of the device. 21... Fuel tank, 23... Light wick, 24... Wick holder, 24a... Flange of wick holder 24, 29
... Valve body, 30... Valve device, 35... Valve plate, 37a... Oil level.

Claims (1)

[Scope of Claims] 1. A fuel tank, a lamp wick whose lower part is located in the fuel tank and is movable up and down, and a valve device that releases the internal pressure increase in the combustion tank due to the lowering of the lamp to the outside of the fuel tank. , an oil combustor in which the lamp wick is provided with a flange for preventing oil from scattering toward the valve device side; 2. The oil combustor according to claim 1, wherein the lamp wick has a wick holder, and one end of the wick holder is bent close to the outer peripheral side wall of the fuel tank to form a flange for preventing oil scattering. 3. An explosion extinguishing chamber communicating with the upper and lower space of the wick is installed in the wick outer tube at the top of the fuel tank that guides the vertical movement of the wick, and a valve body is installed in this explosion extinguishing chamber to open and close between the outside and the explosion extinguishing chamber. The oil combustor according to claim 2, wherein the end of the valve body is opposed to the flange of the wick holder so that the valve body can be pushed open when the wick is raised.