JPH0223936Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to an oil-burning appliance that prevents the generation of odor and flames during extinguishing.

(Conventional structure and its problems) In an oil-burning appliance in which a combustion tube is inserted between an inner core cylinder and an outer core cylinder so as to be able to rise and fall freely, and the combustion cylinder is placed on top of this for combustion, the combustion cylinder JP-A-56-16028 proposes a device for preventing odor during fire extinguishing, which is characterized in that it is equipped with a gas suction device communicating with the combustion chamber, and this suction device is activated when the fire is extinguished.

However, the above methods require complicated equipment, such as liquefying the vaporized gas sucked in the suction device and returning it to the tank, or installing a substance that has the function of processing the vaporized fuel. Therefore, it was inevitable that it would be expensive.

(Purpose of the invention) This invention was created in view of the above-mentioned problems.
The purpose of the present invention is to provide an oil-burning appliance at a low cost, which eliminates odor during extinguishing a fire, eliminates flames rising from the upper part of the combustion cylinder, and shortens extinguishing time.

(Structure of the invention) In order to achieve the above object, the present invention divides the inside of the tank using a partition plate with a communication hole, and divides the inside of the tank into a main tank chamber and a sub-tank chamber that accommodates the combustion wick so that it can be raised and lowered. During combustion, fuel is sequentially supplied from the main tank chamber to the tank subchamber through the communication hole in the partition plate.
In oil-burning appliances that seal off the communication hole with the oil level that rises due to the wick lowered during extinguishing, thereby airtightly isolating the main tank chamber and sub-tank chamber, the system uses a suction device linked to extinguish the fire. It is constructed so that it sucks the gas in the vaporization section, introduces the sucked gas into the main chamber of the tank, liquefies some of it and returns it to the fuel, and releases the rest into the atmosphere through the discharge valve. be.

(Example) Examples of the present invention will be described below based on the drawings. 1 indicates a tank, which is divided into a tank main chamber 1a and a tank sub-chamber 1b by a partition plate 3 provided with a communication hole 2, and a fuel filler port 4 is provided in the tank main chamber 1a so that the inside of the tank main chamber 1a is divided into a tank main chamber 1a and a tank sub-chamber 1b. When the fuel becomes empty, fuel is replenished from the outside, and the combustion wick 7 is movably raised and lowered between the annular opening formed by the core outer cylinder 5 and the core outer cylinder 6 in the sub-tank chamber 1b. It is intervening. 8
1 is a combustion tube, in which an inner flame tube 8a and an outer flame tube 8b formed of perforated plates, and an outer tube 8c are arranged concentrically on the outside thereof. 6
The outer cylinder 8b is placed in the upper part of the combustion chamber 9, and the annular gap between the inner flame cylinder 8a and the outer flame cylinder 8b forms a combustion chamber 9.
By combustion, fuel is sequentially replenished from the tank main chamber 1a to the tank subchamber 1b through the communication hole 2. Reference numeral 10 denotes a suction device that sucks air in the sub-chamber 1b of the tank and unused gas in the combustion chamber 9 of the combustion tube 8 through the suction hole 10a using a fan, pump, etc. in conjunction with the lowering of the combustion wick 7 when extinguishing a fire. It is provided so that the sucked gas is discharged into the tank main chamber 1a through the discharge hole 10b.
11 is a discharge valve installed at a suitable location in the main tank chamber 1a;
The valve is opened only when extinguishing a fire, and is normally closed so that the residual gas and air discharged into the main tank chamber 1a and liquefied and reduced are dissipated into the atmosphere.

In addition to the example shown above, although not shown, it is also possible to install a suction device in the core outer cylinder 6 and connect only the discharge hole 10b to the tank main chamber 1a. Antechamber 1b
It is also possible to incorporate the suction hole 10a and the discharge hole 10b into each chamber.

Furthermore, in order to interlock the suction device when extinguishing a fire, in addition to a mechanical interlocking mechanism, there is also a means of electrically controlling the interlocking mechanism, and it is also possible to open and close the discharge valve by interlocking electrical control. be.

The effects of the embodiment will be described below. When the combustion wick 7 is raised by an operation knob (not shown) and the tip of the combustion wick 7 is ignited, vaporized gas is absorbed into the pores of the inner and outer flame tubes 8a and 8b in the combustion chamber 9 of the combustion tube 8. More secondary air is supplied and combustion occurs. At this time, when the fuel is consumed by combustion and the oil level in the tank subchamber 1b drops, the tank subchamber 1b
The air inside the tank flows into the tank main chamber 1a through the communication hole 2, and the fuel in the tank main chamber 1a is sequentially replenished into the tank auxiliary chamber 1b to continue combustion.

Next, we will discuss when extinguishing a fire. When the combustion wick is lowered by the operation knob or when the combustion wick is suddenly lowered by the seismic fire extinguishing device (not shown), the suction device is activated and the air in the sub-chamber 1b of the tank is sucked to create a negative pressure. Gas is also inside the core/outer cylinder 5,
6 and the combustion wick 7 in a reverse flow, it is sucked through the sub-chamber 1b of the tank. (When the combustion wick 7 descends, the lower part of the combustion wick is submerged during combustion in the sub-chamber 1b of the tank, and the oil level of the fuel rises by that volume, blocking the communication hole 2 of the partition plate 3 and causing the main chamber 1a of the tank (and the sub-chamber 1b of the tank are airtightly isolated from each other.) Therefore, when extinguishing a fire, gas will be released into the combustion chamber 9 of the combustion tube 8.
Not only does this prevent odor and flames from rising further, but most of the gas is cooled by being introduced into the main tank chamber 1a and coming into contact with the fuel surface. It condenses and returns to the fuel, and only a part of it is released into the atmosphere from the exhaust valve 11 along with the air, which not only further reduces the odor, but also prevents the exhaust gas from condensing and liquefying near the exhaust valve 11. Can be reduced. It goes without saying that it is desirable that the exhaust hole 10b and the exhaust valve 11 be as far apart from each other as possible in order to reduce the amount of gas released into the atmosphere. Although not shown, it is also possible to attach a discharge valve to the lid of the fuel filler port.

(Effects of the invention) Since the present invention is constructed as described above, it can solve the conventional drawbacks, further reduce the odor during extinguishing, eliminate flames from the top of the combustion tube, and further shorten the extinguishing time. This makes it possible to provide a device that can be used at a low cost.

[Brief explanation of the drawing]

The figure is a partial vertical sectional view showing an oil burning appliance according to an embodiment of the present invention. 1 is a tank, 1a is a main tank chamber, 1b is a sub-tank chamber, 2 is a communication hole, 3 is a partition plate, 7 is a combustion wick, 1
0 is a suction device, 11 is a discharge valve.

Claims (1)

[Scope of Claim for Utility Model Registration] The inside of the tank is divided by a partition plate with a communication hole to form a tank main chamber and a tank auxiliary chamber that accommodates the combustion wick so that it can be raised and lowered. Fuel is sequentially supplied from the chamber to the tank auxiliary chamber through the communication hole in the partition plate, and the communication hole is blocked by the oil level that rises due to the combustion wick that is lowered during extinguishing, thereby sealing the tank main chamber and tank auxiliary chamber airtight. In oil-burning appliances that are shut off automatically, the suction device that is linked to extinguish the fire sucks in the gas in the vaporization section, and introduces the sucked gas into the main chamber of the tank, liquefying some of it and discharging it during combustion. An oil-burning appliance characterized by reducing oil and releasing the remainder into the atmosphere through a discharge valve.