JPH0419336Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field] The present invention relates to a top-and-bottom wick type oil combustor that reduces bad odors caused by vaporized components (gas) generated from the wick during extinguishing operations.

[Prior Art] Fig. 1 is a sectional view of the main parts of a core-up-and-down oil combustor, in which 1 is an outer core cylinder, 2 is an inner core cylinder, and 3 is formed by an outer core cylinder and an inner core cylinder 2. The wick is arranged in a wick guideway 4 so as to be able to slide up and down, and the oil 6 in the combustion tank 5
is sucked up using capillary force. During combustion, the upper end of the wick 3 is made to protrude from the combustion cylinder mounting surface 8 on which the combustion cylinder (burner) 7 of the core outer cylinder 1 is placed, and the oil 6 sucked up is evaporated from there for combustion.

When extinguishing a fire, the upper end of the wick 3 is submerged into the wick guide path 4 to cut off the air supply and reduce evaporation of petroleum to extinguish the fire. At this time, when the temperature of the outer core cylinder 1 and the inner core cylinder 2 is high, incomplete combustion gas is generated at the upper end of the core 3 due to low flame combustion, and when these gases pass through the high temperature combustion cylinder 7, they are thermally decomposed. It was smelling bad. There, these gases enter the high-temperature combustion tube 7.
In order to prevent the gas from passing through, a suction pipe 9 is provided at the top of the core outer cylinder 1 located above the upper end of the wick 3 in the extinguished state, and a suction device such as a suction pump 10 is used to suck the gas. Ta.

However, since the above-mentioned suction gas was directly released into the atmosphere in the vicinity of the burner, not only did the petroleum components contained in the gas diffuse and pollute the area, but some of the gas also touched the high temperature part of the burner 7 again. , there was a risk of generating a foul odor.

For this reason, as in Japanese Patent Application Laid-Open No. 56-16029,
It has been proposed to return the gases below the liquid level in the combustion tank. In this way, the liquefied component does not stain the tank surface, but since the suction gas is sent into the sealed tank, it is necessary to provide a pressure equalization valve in the tank to adjust the pressure. Moreover, even if a pressure equalization valve is provided, the inside of the tank will maintain atmospheric pressure at most, and the inside of the tank will not be at a negative pressure with respect to the atmospheric pressure, as would be the case if gas was not returned to the tank. When the inside of the tank is under negative pressure, the suction by the suction device is mainly air suction from above the wick, and most of the gas generated from the wick is suctioned along with this air suction. However, when the inside of the tank is at atmospheric pressure, the gas inside the tank rises and is sucked through the gap between the core and the core outer cylinder, which reduces the suction efficiency of the gas generated upward from the core. The odor prevention effect is weakened.

[Purpose] In order to eliminate the above-mentioned drawbacks, the present invention provides an exhaust outlet of a suction device at the fuel filler port of a combustion tank.

[Embodiment] Hereinafter, an embodiment of the present invention will be described based on the drawings, but the same or equivalent parts as in the conventional example are given the same reference numerals, and the explanation thereof will be omitted.

The wick type oil combustor shown in FIG. A space is formed between the core outer cylinder 1 and the core 3 by increasing the diameter of the cylinder below the stepped portion 1a of the core outer cylinder 1. A suction device (suction pump 10 in this embodiment) that suctions gas generated from the wick 3 during fire extinguishing operation is provided with an exhaust pipe 11 (including an exhaust duct) made of a steel pipe or the like. The outlet of this exhaust pipe 11 is opened to the fuel filler port 5a of the combustion tank 5.

Next, the operation will be explained.

During a fire extinguishing operation, gas (unburnt gas, etc.) generated from the wick is sucked into the suction pump 10, and as it passes through the exhaust pipe 11, it is gradually cooled, and the petroleum vapor condenses and becomes liquefied. Further, the gas discharged from the fuel filler port is also liquefied around the fuel valve 14a of the fuel tank 14. The liquefied petroleum component flows into the oil pan 15 and returns to the oil supply tank 5. Furthermore, even if it liquefies near the fuel tank installation area, it will return to the fuel filler port, and since the area around the fuel tank installation area is originally a place that gets dirty with petroleum when putting in and taking out the fuel tank, there are almost no inconveniences caused by adhesion of liquefied components. do not have.

Gas that has not been liquefied (ie, gas that does not contain or is low in petroleum vapor) is dissipated outward along the fuel tank 14. Therefore, unlike in the past, petroleum components will not spread and pollute the surrounding area.

Further, in an oil combustor, a partition plate is usually provided between the fuel tank 14 and the burner to protect the fuel tank 14 from the heat of the burner during combustion. Therefore, the exhausted gas is released along this partition plate to the outside of the oil combustor.
Exhaust gas will not be sucked into the burner again and cause a bad odor.

Note that liquefaction can be promoted by forming the exhaust pipe 11 into a coiled shape or by forming an exhaust duct with a detour. In addition, combustion tank 5
An exhaust duct may be formed on the upper wall of the combustion tank 5 using the upper wall, and in this case, since the upper wall is used, the structure of the suction device is simple.

It should be noted that the present invention is not limited to the embodiments described above and shown in the drawings, but can of course be implemented with appropriate modifications within the scope of the invention.

[Effects] According to the present invention, an exhaust outlet is provided at the refueling port of the combustion tank, and the exhaust outlet and the wick guide path are communicated through an exhaust pipe, so that when extinguishing a fire, the gas (vaporized components) generated from the wick and The liquefied portion will not spread widely and be sucked into the burner again or pollute the surrounding area, making it possible to effectively prevent bad odors.

Moreover, since the gas sucked in by the suction device is exhausted to the fuel filler port, there is no inconvenience of drilling a hole in the wall of the combustion tank itself, which is required when gas is returned to the combustion tank. The suction efficiency will not decrease and the odor prevention effect will not be impaired.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a main part of a conventional wick type oil combustor, and FIG. 2 is a sectional view of a main part of an embodiment of the wick type oil combustor according to the present invention. 1... Core outer cylinder, 2... Core inner cylinder, 3... Core, 5...
... Combustion tank, 5a... Fuel filler port, 10... Suction device.

Claims (1)

[Scope of claim for utility model registration] Oil combustion in which a wick is provided in a wick guide path formed between an outer core cylinder and an inner core cylinder so as to be able to slide up and down, and oil in a combustion tank is sucked up and burned by the wick. In a wick type oil combustor having a removable refueling tank attached to the refueling port formed in the combustion tank, an exhaust pipe is provided in the upper part of the wick outer cylinder so as to communicate with the wick guide path. and the other end of this exhaust pipe is connected to the exhaust outlet formed at the fuel filler port, and during extinguishing operation, vaporized components generated from the wick are sucked through the exhaust pipe and exhausted from the exhaust outlet. A top-and-bottom wick type oil combustor, which is characterized by being equipped with a suction device.