JP2679362B2 - Combustion cylinder - Google Patents

Description

TECHNICAL FIELD The present invention relates to a combustion cylinder used in a domestic petroleum stove.

2. Description of the Related Art Conventionally, as shown in FIG. 2, this type of combustion cylinder supplies fuel to a combustion chamber 3 between an inner flame cylinder 1 having many air holes 1a and an outer flame cylinder 2 having many air holes 2a. The tip of the wick 4, which is a portion, is exposed to vaporize and burn the fuel. And, normally, the outer flame tube 2 forms a red heating section 6 having a through hole 6a having a large opening area above the throttle section 5a of the outer tube 5,
The fuel vaporized from the wick 4 and the air introduced from the through hole 6a into the combustion chamber 3 are mixed and burned to red heat the red heating section 6 to obtain radiant heat. Further, a ring-shaped outer flame tube top 8 and a ring 9 are provided on the upper end of the outer flame tube 2 so as to surround the outer periphery of the flame spreader plate 7 above the inner flame tube 1, and are formed in the upper part between the inner and outer flame tubes 1, 2. I was trying to keep the flame 10 out of sight from the outside.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention However, in the above-described conventional configuration, the height of the wick 4 is rapidly increased from a weak combustion state in which the wick height is low, and the vaporization amount is higher than that in steady strong combustion, and the air amount can follow. Without combustion cylinder,
That is, an excessive flame is generated from the upper part between the outer flame cylinder 2 and the inner flame cylinder 1. There is a problem that the flame is redirected outward by the flame spreading plate 7 and a part of the flame contacts the annular ring 9 where it is cooled to generate CO.

The present invention has been made in view of the above points, and an object thereof is to reduce the generation of CO.

Means for Solving the Problems In order to achieve the above object, the present invention provides an outer flame cylinder including a pore portion having a large number of air holes and a red heat portion formed above the pore portion, and an inner flame tube disposed inside the outer flame cylinder. An inner flame cylinder having a large number of air holes provided, an outer cylinder located outside the outer flame cylinder, a heat-resistant permeation cylinder placed above the outer flame, and a cover on the upper end of the inner flame cylinder. The inner flame tube top plate, the flame spreader plate mounted on the inner flame tube top plate, the outer flame tube top mounted over the upper ends of the outer flame tube and the heat-resistant permeation tube, and the outer circumference of the flame spreader plate. And a top ring provided with a slit-like many through holes in the peripheral wall part of which the flat plate is formed into an annular shape so as to surround the part, the top ring having a larger diameter than the outer flame tube top and protruding outward, The bottom part has a plurality of inward claw bending parts and is attached to the outer flame tube top, and has an opening for ventilation between them. There is a configuration.

Operation According to the present invention, the air is always flown into the inside of the top ring by the draft through the openings provided in the bottom and the peripheral wall of the top ring. Therefore, even if an excessive flame is generated and this is redirected by the flame spreader plate and goes outward, the tip of the flame is supplied with fresh air by the draft, so the flame is top In addition to not touching the ring, on the contrary, combustion is promoted by the fresh air, CO emission is reduced, the flame is shortened, and the danger of excessive flame is reduced.

Embodiment Hereinafter, an embodiment of the present invention will be described with reference to FIG. 1. However, the same portions as those in FIG. 2 described above are denoted by the same reference numerals, and the description thereof will be omitted, and only different portions will be described. The combustion tube is composed of inner and outer flame tubes 1 and 2. 8 is external flame tube 2
The outer flame cylinder top, which is closed between the upper ends of the heat-resistant transparent cylinder 15 made of heat-resistant glass and the upper end of the outer peripheral edge of the outer flame cylinder, is fitted with a ring-shaped top ring 11. The top ring 11 has a diameter larger than that of the outer flame tube top 8 and has a shape projecting outward.
Is installed on the outer flame cylinder top 8 and has an opening 13 for ventilation therebetween. A large number of slit-shaped through holes 14 are formed in the peripheral wall portion of the top ring 11. In addition, 16 in the figure is an internal flame cylinder top plate.

In the above structure, during combustion, the combustion draft causes fresh air to enter the top ring 11 through the bottom opening 13 of the top ring 11 and the through hole 14 of the peripheral wall due to the combustion draft, and the flame 10 It will be supplied to the tip.

Therefore, even if the wick 4 is suddenly raised to generate an excessive standing flame, and the flame 10 is changed outward by the flame spreader 7, the tip of the flame 10 still has fresh air from the two directions indicated by the arrows A and B. It is pushed inwardly by and is no longer touching the top ring 11. In addition, the above-mentioned excessive flame 10 is open 13
And, the air is obtained from the through holes 14 to promote the combustion. As a result, the generation of CO is almost eliminated, and at the same time, the flame 10 becomes short and the flame does not extend greatly onto the top ring 11.

EFFECTS OF THE INVENTION As described above, according to the present invention, CO is prevented from being extremely deteriorated by an excessive flame generated when the combustion mode is suddenly switched from the weak combustion to the strong combustion, and conversely, the flame becomes short. It becomes inconspicuous from the outside of the top ring, and the risk of appearance can be reduced. There is also an advantage that discoloration caused by the flame touching the top ring can be reduced.

[Brief description of the drawings]

FIG. 1 is a sectional view of a combustion cylinder in one embodiment of the present invention, and FIG. 2 is a sectional view of a conventional combustion cylinder. 1 ... Inner flame tube, 2 ... Outer flame tube, 5 ... Outer tube, 6 ... Red heat part, 7 ... Flame spreading plate, 8 ... Outer flame tube top, 11 ... Top ring, 12 ... Claw bent part, 13 …… opening, 14 …… through hole, 15 …… heat-resistant transparent cylinder, 16 …… inner flame cylinder top plate.

Claims (1)

(57) [Claims] 1. An outer flame cylinder comprising a pore portion having a large number of air holes and a red heat portion formed above the pore, and an inner flame cylinder having a large number of air holes arranged inside the outer flame cylinder. An outer cylinder located outside the outer flame cylinder, a heat-resistant permeation cylinder placed above the outer cylinder, an inner flame cylinder top plate covering the upper end of the inner flame cylinder, and an inner flame cylinder top. A flame spreading plate mounted on the plate, an outer flame cylinder top mounted over the upper ends of the outer flame cylinder and the heat-resistant permeation cylinder, and a flat plate annularly surrounding the outer peripheral part of the flame expanding plate to form a peripheral wall thereof. And a top ring having a large number of slit-shaped through holes provided in the portion, the top ring having a diameter larger than that of the outer flame tube top and protruding outward, and having a plurality of inward claw bending portions at the bottom thereof A combustion cylinder which is mounted on the outer flame cylinder top and has an opening for ventilation therebetween.