JPS58221322A - Kerosene burner - Google Patents

Abstract

PURPOSE:To control the explosive combustion of an unburned oil gas to a minimum by a method wherein a porous member is arranged within a small chamber formed in a wick receiving cylinder through an opening, at a position opposite a wick and in substantially coaxial relationship with the wick receiving cylinder so that the distance by which the unburned oil gas spreads into the small chamber is equalized over the entire circumference of the chamber. CONSTITUTION:When the opening 4 is left open in a condition in which the wick 5 is lowered, most of the unburned oil gas which has between present in the upper part of the wick 5 flows into the small chamber 6 from the opening 4 through the porous member 7 and a flame coming down into a wick receiving space 9 with the downward movement of the wick 5 is prevented from entering the small chamber by the porous member 7, so that the instantaneous combustion of the unburned oil gas within the small chamber is sharply reduced. At the same time, a remaining part of the flame present in the wick receiving space 9 does not spread on fire grates 2A and 3A because most of the unburned oil gas has already flowed into the small chamber 6 with only a small quantity of the gas left in the space 9. Consequently, it is possible to reduce the danger of a fire generating due to the upsetting of the oil burner.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a wick-type oil combustor. Conventionally, in this type of oil combustor, as shown in FIG. In some cases, an opening B is provided, and a small chamber with a small hole C is provided around the outer periphery of this opening B. This is when the wick is lowered (when extinguished)
Then, the unburned gas present above the wick E flows into the small chamber, mixes with the air from the small hole C, and combusts instantly (explosive combustion), and the blast causes the upper part of the wick E to explode. The burning flame was blown out, but at this time the combustion inside the small chamber instantaneously propagated to the unburnt gas above the wick E', which was in a descending state, causing a temporary abnormal standing flame. At this time, there were problems such as the generation of soot due to the lack of fresh air.

The present invention eliminates these drawbacks by providing porous members at equal intervals on the inside of the small chamber of the opening to prevent only the propagation of flame.

An example of this will be explained below with reference to the drawings.
In Figures 2a and b, 1 is a tank, 2.3 is a core housing cylinder wall installed upright in the tank 1, and the outer core housing cylinder wall 3 has a slit-shaped opening 4 (this may be a small hole). ) is provided.

During combustion, this opening 4 is closed by a lamp wick 6 disposed between the inner and outer wick-receiving cylinder walls 2 and 3, and when extinguishing, the lamp wick 6 is lowered and opened as shown in the drawing.

Reference numeral 6 denotes a small chamber provided on the outer periphery of this opening 4, which is formed by a combination of core housing cylinder wall forming members 3a and 3b. Reference numeral 7 denotes a porous member provided inside the small chamber 6 of the opening 4, and in this embodiment, it is made of a lath net of 5US430. The porous member 7 is disposed equidistantly from the opening 4 and is arranged to divide the interior of the small chamber 6 into the opening 4 side and the opposite side. The upper end of the porous member 7 is in contact with the stepped portion K of the forming member 3a, and three cut-out portions 7' cut and raised from this member 7 on the side opposite to the opening 4 are formed in the forming member 3a.
The opening 4 is in contact with the closed wall of the opening 4, so that it is equidistant from the opening 4 over the entire circumference. 8 is a small hole provided in the outer peripheral wall of the small chamber 6.

In the above configuration, when the opening 4 is opened while the lamp wick 6 is being lowered, most of the unburned gas existing above the lamp wick 5 flows through the opening 4 into the small chamber 6 through the porous member 7. The flame that descends into the wick storage space 9 as the wick 5 descends tries to propagate to the unburned gas in the small chamber θ, but this is prevented by the porous member 7. Therefore, instantaneous combustion of unburned gas within the small chamber 6 within the small chamber 6 is greatly reduced.

On the other hand, since most of the unburned elongated gas has flowed into the small chamber θ, a small amount of unburned oil gas exists in the wick storage space 9, and the embers of the flame formed in the wick storage space 9 are small. It will no longer be formed on 2A and 3A. That is, this flame is only formed within the wick housing space 9, which reduces the risk of fire when the wick falls.

The above explanation is for the fire extinguishing effect in a state where the combustor does not fall over, but the same applies even when the combustor falls over, and in this case, if the unburned oil gas in the wick storage space 9 flows into the small chamber 6. This makes it even more effective.

Incidentally, in the above embodiment, a lath net is used as the porous member 7 and is arranged equidistantly within the small chamber 6. However, any material such as a punched plate or a metal sponge plate may be used. It may be installed at any position within the small chamber 6 from the edge of the opening 4.

As is clear from the above description of the embodiments, in the present invention, porous members are provided at approximately equal intervals in small chambers provided through openings on the opposite side of the wick storage tube from the lamp wick.

By arranging the porous members at approximately equal intervals, the distance that the unburned oil and gas in the small chamber propagates is equalized over the entire circumference, making it possible to minimize the explosion and combustion of the unburned oil and gas, making it possible to Abnormal flames and soot generation are eliminated.

At the same time, during the assembly process, the porous member is set by the spring effect of the cut and raised part, so the set does not move even during movement such as automatic assembly, making it possible to efficiently reduce man-hours, making it safe and reliable. It is possible to provide a highly efficient oil combustor.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of an oil combustor according to an embodiment of the present invention, FIGS. 2a and 2b are enlarged longitudinal sectional views and cross sectional views of the same essential parts, and FIG. 3 is a sectional view of a conventional example. . 3... Core housing cylinder wall, 4-... Opening, 6...
...Light wick, 6...Small room, 7...
Porous member, 7'... cut and raised portion. Name of agent: Patent attorney Toshio Nakao (1st person)
figure

Claims (1)

[Claims] An oil combustor having an opening in the wall of the wick housing cylinder that is closed by the wick during combustion and opened when extinguishing the fire, a small chamber formed around the outer periphery of this opening, and the small chamber of the opening in contact with the wall surface of the small chamber. .