JP2584724Y2 - Oil stove combustion cylinder - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION This invention relates to a combustion cylinder used for an oil stove generally called a reflection type.

[0002]

2. Description of the Related Art Conventionally, in this type, as disclosed in Japanese Utility Model Laid-Open Publication No. 51-118520, a catalyst cylinder having a catalyst body is connected above a combustion cylinder, and It purifies and deodorizes exhaust gas generated by combustion.

[0003]

In the prior art , however, the catalyst has only the function of purifying and deodorizing exhaust gas, and the catalyst is red-heated by combustion in the combustion cylinder. It is conceivable that heat is used for heating as radiant heat. For that purpose, it is necessary to incline the catalyst body forward. , And this part is abnormally heated, resulting in a problem that the catalytic action is greatly reduced and deteriorated, and in order to prevent this, it is necessary to raise the entire catalytic body further up. There is
In this case, the size of the combustion cylinder becomes larger, and the size of the entire apparatus must be increased accordingly. This leads to a new problem that leads to an increase in cost and a reduction in space. Was not easy to do.

[0004]

The present invention focuses on this point and solves the above-mentioned drawbacks. In particular, the present invention relates to a construction in which a catalyst tube having a catalyst body at the upper end is connected above the combustion tube, and the structure is made higher than that of the combustion tube. In purifying and deodorizing generated exhaust gas,
The catalyst cylinder has a lower front side, and the catalyst body is provided so as to be inclined forward.The outer cylinder below the combustion cylinder is provided with cooling air on the front side facing the lowered catalyst body. A cooling air hole to be supplied is provided.

[0005]

When the combustion is started, the generated hot combustion air rises in the combustion cylinder 6 and heats the inner and middle cylinders 10 and 13 to make them red and enhance the heating effect by the radiant heat. The hot air after the heating becomes exhaust gas, and the catalyst tube 1 connected above the combustion tube 6
, And is purified and deodorized and released by passing through the catalyst body 18. At this time, the catalyst body 18
Is heated to a red-hot state, and radiates this red-light forward by being inclined forward, thereby increasing the radiant heat to further enhance the heating effect.

Further, in the prior art, at this time, the front side A of the catalyst body 18 which is inclined and approaches the upper end of the combustion cylinder 6 is abnormally heated. In this invention, however, the inclined front side A of the catalyst body 18 is heated. Since the cooling air holes 20 are provided in the outer cylinder 14 below the combustion cylinder 6, the air flowing from the cooling air holes 20 is intensively supplied to the front side A of the catalyst body 18, It is possible to prevent abnormal heating of the medium 18 satisfactorily.

The cooling air hole 20 is provided on the front side A of the outer cylinder 14.
Since it is limited to only the catalyst body 18, the catalyst body 18 can be effectively cooled and the influence on combustion can be minimized.

[0008]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view of a combustion cylinder of an oil stove according to the present invention. Numeral 1 is a core guide cylinder comprising a core inner cylinder 2 and a core outer cylinder 3, and a vertically movable fuel core 4 is provided between the two cylinders 2, 3. An extended dish-shaped guide plate 5 is provided.

Numeral 6 denotes a double-cylinder type combustion cylinder which is removably mounted on the core guide cylinder 1 and has a number of small holes 7 formed all around and a top end closed by a lid 9 having a diffusion plate 8. The inner cylinder 10 is provided with a certain interval outside the inner cylinder 10. A small hole 11 is drilled at a lower part of the lower part which is at least １ ／ of the entire length, and a horizontal part is formed in the remaining upper part. A middle cylinder 13 having small holes 12 in a staggered brick shape while partially overlapping each other
And an outer cylinder 14 positioned at a distance outside the lower part of the middle cylinder 13, and a heat-resistant heat-permeable material having a lower end placed on the upper end of the outer cylinder 14 and exposing the upper part of the middle cylinder 13 to the outside. And the like, and a pressing plate 16 which is fixed to the upper end of the middle cylinder 13 which supports the upper end of the transparent cylinder 15 and which protrudes outward.

Reference numeral 17 denotes a catalyst tube made of stainless steel, which is engaged with the holding plate 16 and connected to the combustion tube 6. A catalyst body 18 having a lower front side A and inclined forward is provided at the upper inner end. That purifies and deodorizes exhaust gas discharged above the combustion cylinder 6 and, by being inclined forward, emits a red-hot state as radiant heat to enhance the heating effect. Further, a communication hole 19 composed of a plurality of slits whose length is gradually reduced toward the front is provided on the entire circumference of the peripheral wall.

Reference numeral 20 denotes a cooling air hole provided in the outer cylinder 14 below the combustion cylinder 6, and is pierced only on the front side A directly below the inclined catalyst body 18 so as to face the lowered portion of the catalyst body 18. It is composed of a plurality of slits, and a large amount of fresh air is supplied to the front side A of the catalyst body 8 which is easily heated by the exhaust gas from the combustion tube 6 and the hot air, and is cooled to prevent abnormal heating of this portion. It is to prevent. 21 is the inner cylinder 10
It is a current plate provided at the lower part inside.

Next, the operation of this embodiment will be described. When the upper end of the fuel core 4 is exposed above the core guide cylinder 1 and the ignition is performed by appropriate means, combustion is started. This combustion is performed between the inner cylinder 10 and the middle cylinder 13 of the combustion cylinder 6,
The upper part of the middle cylinder 13 is heated and glows red by the generated combustion hot air, and this red glow state is exposed to the outside through the transparent cylinder 15 and is reflected via a reflector (not shown) to perform good radiant heating. Things.

The exhaust gas after further heating the middle cylinder 13 is:
After flowing between the inner / middle cylinders 10 and 13 and flowing into the upper catalyst cylinder 17 and passing through the catalyst body 18 at the upper end, harmful components are purified and deodorized and released to the outside. A comfortable combustion without odor is obtained, and at this time, the catalyst body 18 is heated to exhibit a red-hot state, and the catalyst body 18 is inclined toward the front side A,
The radiant heat is radiated forward to increase radiant heating, so that efficient heating can be performed.

Further, even if the catalyst body 18 is provided at an angle, the catalyst cylinder 17 is kept at a minimum so that the height thereof does not become too high, thereby preventing the combustion cylinder 6 itself and the entire apparatus from being enlarged. However, there is a danger that the front side A of the catalyst body 18 which is lowered due to the inclination and the upper end of the combustion cylinder 6 come close to each other and may be abnormally heated. However, in the present invention, since the cooling air holes 20 are formed on the front side A of the outer cylinder 14 immediately below the catalyst body 18, a large amount of air flows in from the cooling air holes 20 and the front of the inclined catalyst body 18 is formed. It is supplied intensively to the side A, and the abnormal heating of this portion is reliably prevented by its cooling effect, and the occurrence of troubles such as deterioration of the catalyst body 18 and deterioration of the catalytic action is prevented. So that heating can be obtained.

Since the cooling air hole 20 is formed on the front side A of the outer cylinder 14 and at the lower part of the combustion cylinder 6, FIG.
As shown in FIG. 5, the ignition state of the fuel core 4 can be seen from the human eyes B through the cooling air holes 20 and can serve as a window for confirming ignition, which is conventionally performed. It is also possible to solve the disadvantage that the ignition cannot be confirmed, which is a disadvantage of the static ignition method in which the ignition is performed without lifting the combustion tube 6.

[0016]

In short, the present invention relates to a method of connecting a catalyst cylinder 17 having a catalyst body 18 at an upper end thereof to a position above the combustion cylinder 6 and connecting the combustion cylinder 6 to the combustion cylinder 6.
In purifying and deodorizing the generated exhaust gas, the catalyst tube 17 has a lower front side A, and the catalyst body 18 is provided so as to be inclined forward, and the catalyst tube 18 is provided outside the lower portion of the combustion tube 6. Since the cylinder 14 is provided with the cooling air hole 20 through which the cooling air flows into the front side A facing the lowered catalyst body 18, there is no fear of odor due to purification and deodorization of the exhaust gas. While comfortable heating can be done,
The red-hot state of the catalyst body is radiated forward to increase the radiant heating so that good and efficient heating can be obtained, and the cooling air holes ensure that the catalyst body deteriorates and the catalytic action decreases. And a good heating effect can be maintained for a long period of time.
Further, the confirmation of ignition can be performed at the same time by the cooling air hole, and the practical effect is great, for example, it can be used with ease and is extremely easy to use.

[Brief description of the drawings]

FIG. 1 is a semi-longitudinal sectional view of a combustion cylinder provided with the present invention.

[Explanation of symbols]

 6 Combustion cylinder 14 Outer cylinder 17 Catalyst cylinder 18 Catalyst body 20 Cooling air hole

Continuing from the front page (72) Inventor Yoshimune Ohashi 7-7 Higashi Shinbo, Sanjo-shi, Niigata Prefecture Corona Co., Ltd. (72) Inventor Kenichi Mizunami 7-7 Higashi-Shinbo, Sanjo-shi, Niigata Corona Investigator East Katsuyuki (56) References JP-A-1-134103 (JP, A) JP-A-63-318403 (JP, A) JP-A-3-87014 (JP, U) JP-A-1-101015 (JP, U) (58) Field surveyed (Int. Cl. ⁶ , DB name) F23D 3/18

Claims (1)

(57) [Scope of request for utility model registration] 1. A catalyst tube 17 having a catalyst body 18 provided at an upper end thereof is connected above a combustion tube 6 to purify and deodorize exhaust gas generated from the combustion tube 6. The lower side A is provided so that the catalyst body 18 is inclined forward, and the outer cylinder 14 below the combustion cylinder 6 is provided with cooling air at the front side A facing the lowered catalyst body 18. A combustion cylinder for an oil stove, characterized by having a cooling air hole 20 through which oil flows.