JP2003336810A - Heat chamber of oil burning instrument - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent unburned gas from being released in a room, by achieving complete combustion within one simple-structured heat chamber of an oil burning instrument. <P>SOLUTION: The heat chamber comprises an inner cylinder 11 and an intermediate cylinder 12 having at least a large number of small holes 17, 18, 20, an outer glass cylinder 16 covering the intermediate cylinder, and an outer cylinder base 13 on which the outer glass cylinder 16 is placed. The upper end of the outer glass cylinder 16 is supported by an outer cylinder presser 19 connected to the upper end of intermediate cylinder 12. The inner cylinder 11 is shorter than the intermediate cylinder 12. A baffle 24 stands on a cover 22 at the top of the inner cylinder 11 and expands outwardly above the intermediate cylinder 12 and the outer glass cylinder 16 exceeding the diameter of the inner cylinder 11. A large-spaced secondary combustion chamber 21 surrounded by the intermediate cylinder 12 and the baffle 24 is formed over the inner cylinder 11. Therefore, complete combustion can be achieved in one simple-structured heat chamber without enlarging the instrument. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a double cylinder type combustion cylinder used in an oil combustor such as an oil stove.

[0002]

2. Description of the Related Art Conventionally, in this type, as disclosed in, for example, Japanese Utility Model No. 2552839, a combustion ring is provided above the glass outer cylinder so that the upper end of the glass outer cylinder and the outer cylinder presser can be pressed. The unburned gas leaking from the gap between and was guided to the combustion section for complete combustion.

[0003]

By the way, in this prior art, since the combustion portion is between the inner cylinder and the middle cylinder where the fuel wick is located, and the gap is narrow and the draft force is strong, it is inevitable before complete combustion. Since it escapes from the upper side, good combustion of complete combustion cannot always be obtained, and if attempting to obtain complete combustion with this configuration, there will be a problem if the combustion cylinder becomes higher and the equipment as a whole becomes larger. It was a thing.

[0004]

In order to solve the above-mentioned drawbacks by focusing on this point, the present invention has a constitution, in particular, an inner cylinder and a middle cylinder having at least a large number of small holes, and a glass outside thereof. An outer cylinder and an outer cylinder base on which the glass outer cylinder is mounted. The upper end of the glass outer cylinder is supported by an outer cylinder retainer connected to the upper end of the middle cylinder. In addition to having a lower body, the upper end of the inner cylinder is provided with a flame spreader that is erected from the lid and is larger than the inner cylinder and the glass outer cylinder and expands outward to a size larger than the diameter of the inner cylinder. A large-sized secondary combustion chamber surrounded by a cylinder and the flame expanding plate is formed.

As a result, the combustion performed between the inner cylinder and the middle cylinder progresses while rising during this period, and the flow velocity of the unburned gas becomes slow in the upper secondary combustion chamber with a wide space, and Since secondary combustion is performed with the supply of secondary air from the side and outside, it is prevented that the unburned gas is released into the room, and complete combustion is performed in one combustion cylinder. It is possible to obtain good combustion with a simple structure without increasing the size.

Further, if a combustion ring is provided at the upper end of the glass outer cylinder so as to stand higher than the flame spreader plate and form a hole or a gap through which the secondary air flows, a fresh ring for secondary combustion can be obtained from the outside. It is possible to obtain air and complete combustion.

If a plurality of small holes are formed in the lid at the upper end of the inner cylinder, the air circulating in the inner cylinder can be supplied to the secondary combustion chamber as secondary air from the small holes. It is possible to complete complete combustion.

In the support cylinder that connects the lid at the upper end of the inner cylinder and the flame spread plate,
If a plurality of secondary air holes for supplying the air flowing from the opening in the center of the lid body to the secondary combustion chamber as secondary air are provided, a large amount of secondary air is also supplied to the secondary combustion chamber, which is good. The secondary combustion can be performed.

If a plurality of vent holes are provided at the end of the flame spreader plate facing the fuel wick, unburned gas at the time of fire extinguishing that is difficult to escape from the flame spreader easily escapes from the vent hole. Can be shortened.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Next, a combustion cylinder of an oil burning appliance according to the present invention will be described with reference to an embodiment shown in the drawings. Reference numeral 1 denotes a core guide cylinder composed of a core guide outer cylinder 2 and a core guide inner cylinder 3 standing upright from a central portion of a fuel oil tank (not shown), and upper ends of the core guide outer cylinder 2 and the core guide inner cylinder 3. Each has a stepped tray 4
In addition to forming 5, the core guide inner cylinder 3 has a plurality of through holes 6 in the upper surface of the inner cylinder 3 for discharging the air rising inward as combustion air.

Reference numeral 7 denotes a fuel core which is vertically movable between the core guide outer cylinder 2 and the core guide inner cylinder 3 in the core guide cylinder 1, and the tip of which is exposed on the pans 4 and 5 when rising. Is. Reference numeral 8 denotes a support cylinder fixed to the outer periphery of the tray 4 of the core guide outer cylinder 2, and a flange portion 9 which is bent outward is formed at the upper end.

Reference numeral 10 denotes an inner cylinder 11 having a large number of small holes,
A multi-cylinder type combustion cylinder in which a middle cylinder 12 having a large number of small holes formed outside the inner cylinder 11 and an outer cylinder base 13 outside the middle cylinder 12 are integrally configured by a cross pin 14. , The lower end of the inner cylinder 11 is placed on the fire tray 5 and the lower end of the middle barrel 12 is placed on the fire tray 4, and air is introduced between the outer barrel base 13 and the flange 9 of the support barrel 8. Further, the fuel core 7 is located between the inner cylinder 11 and the middle cylinder 12, and the space between these is provided as the primary combustion chamber 15 on the core guide cylinder 1.

The outer cylinder base 13 of the combustion cylinder 10 is a glass outer cylinder 16 facing the upper part of the middle cylinder 12 which is made of a heat-resistant heat-permeable substance having an outer diameter of 140 to 180 mm and a height of 160 to 200 mm. Placed and supported.

Further, the middle cylinder 12 is made of a stainless steel plate having a diameter of 100 to 140 mm, a height of 240 to 280 mm and a height of 0.2 to 0.6 mm, and does not face the lower glass outer cylinder 16 and is at least 1/3 of the entire lower part. Has a diameter of 1.2 ~
A large number of small holes 17 of 2.0 mm are drilled, and at the upper side facing the glass outer cylinder 16 at the top, which is at most ½ of the total length, a horizontally long shape of 1.5 to 3.0 mm × 10 to 15 mm is provided. The small holes 18 are arranged in a staggered brick shape while partially overlapping each other vertically, and the overall opening ratio is 40 to 60%.

Reference numeral 19 denotes an outer cylinder pressing member that closes the upper portion between the middle cylinder 12 and the glass outer cylinder 16, and has one end fixed to the upper end of the middle cylinder 12 and the other end extended to the upper end of the glass outer cylinder 16 to form the glass. The upper end of the outer cylinder 16 is supported.

The inner cylinder 11 is made of a stainless steel plate having a diameter of 70 to 110 mm, a height of 210 to 250 mm, and a diameter of 0.3 to 0.8 mm, and a large number of small holes 20 having a diameter of 1.2 to 2.0 mm are formed on the entire circumference. It is worn as a lower body than the middle cylinder 12 and the middle cylinder 1
2 A large space secondary combustion chamber 21 is formed in the upper part of the inner side.

In this secondary combustion chamber 21, a support cylinder 2 is provided upright from a lid 22 provided at the upper end of the inner cylinder 11 and protrudes outward.
3 and a flame spread plate 24, which is supported by the support cylinder 23 and covers the upper side of the secondary combustion chamber 21, and has a diameter larger than that of the inner cylinder 11 and smaller than that of the middle cylinder 12, and which spreads outward. A plurality of small holes 25 for supplying secondary combustion air from the inside of the inner cylinder 11 to the secondary air chamber 21 are formed in the lid 22, and the upper portion of the support cylinder 23 communicating with the opening 26 in the center of the lid 22 is formed. A large amount of secondary air is also supplied from the plurality of secondary air holes 27.

Reference numeral 28 denotes a cylindrical combustion ring provided outside the outer cylinder pressing member 19 so as to cover the flame spreader plate 24, and is a member formed on the upper surface of the outer cylinder pressing member 19 by the three mounting pieces 29 cut and raised. The outer cylinder retainer 19 is attached by being locked to the stopper 30.
An appropriate gap 31 of 3 to 6 mm is formed between and the air that has risen on the outer periphery of the glass outer cylinder 16 to form a gap 31.
The secondary air is supplied to the secondary combustion chamber 21 as a secondary air to promote combustion.

Reference numeral 32 denotes a plurality of vent holes provided at the tip of the flame spreader plate 24 around the entire periphery at a position facing the fuel core 7, and the flame spreader plate 24 closes just above the fuel core 7. , Wick 7 when extinguishing fire
Since the unburned gas generated from
In order to prevent this, the vent hole 32 is provided to let out unburned gas at the time of extinguishing the fire, thereby shortening the extinguishing time. Further, the secondary air hole 27 of the support cylinder 23 is also in communication with the core guide inner cylinder 3, and has the effect of shortening the fire extinguishing time by increasing the flow of air in the core guide inner cylinder 3 at the time of fire extinguishing. is there.

Reference numeral 33 denotes a guide plate provided in the inner lower portion of the inner cylinder 11, for centrally supplying combustion air flowing in from below to the primary combustion chamber 15 at the upper end of the fuel core 7, and upwardly combusting air at the central opening 34. To supply. Reference numeral 35 is a straightening plate provided in the inner upper part of the inner cylinder 11, which straightens the air in various holes 36 to supply combustion air upward, and to the primary combustion chamber 15 between the inner cylinder 11 and the middle cylinder 12 at the center. Combustion air is supplied.

Next, the operation of this embodiment will be described. When the fuel core 7 is ignited by the now known ignition means (not shown), combustion is started in the primary combustion chamber 15 in the combustion cylinder 10,
By performing this combustion between the inner and middle cylinders 11 and 12 to the upper end of the inner cylinder 11, the brick-shaped small holes 18 from the lower part to the middle of the middle cylinder 12 satisfactorily red heat, and this red heat state The radiant heating is performed directly through the outer cylinder 16 or by reflection from a reflection plate (not shown).

The primary combustion chamber 1 is heated while the middle cylinder 12 is heated red.
The combustion gas that has risen above 5 is transferred to the secondary combustion chamber 2 above the inner cylinder 11.
1, and the increase in the space is suppressed by the flame spreader plate 24, and the flow velocity rapidly decreases, and the space between the middle cylinder 12 and the glass outer cylinder 16 is blocked by the outer cylinder presser 19. Therefore, the air that has risen during this period is supplied as secondary air from the small hole 18 in the upper portion of the middle cylinder 12.

Further, the air that has risen inside the inner cylinder 11 from the small hole 25 of the lid 22 is the secondary combustion chamber 2 as secondary air.
1 is supplied from below, and the air in the inner cylinder 11 is passed through the opening 26 from the secondary air hole 27 in the upper part of the support cylinder 23 to the flame spreading plate
The secondary air is supplied from above the secondary combustion chamber 21 by being guided to the upper side of the secondary combustion chamber 21, and the air outside the combustion cylinder 10 is also secondary air above the secondary combustion chamber 21 through the gap 31 of the combustion ring 28. Is supplied to.

In the secondary combustion chamber 21, the secondary air is supplied from the entire circumference so as to surround the secondary combustion chamber 21, so that the mixing with the combustion gas is smoothly carried out and is always good. With complete combustion, complete combustion is achieved and unburned gas is not released into the room.

Therefore, the primary combustion and the secondary combustion are performed in one combustion cylinder 10 in spite of the extremely simple structure without a complicated structure such as connecting another part above the combustion cylinder 10. As a result, complete combustion is always achieved, and unburned gas is prevented from being released into the room so that it can always be used with peace of mind. Furthermore, the length of the combustion cylinder 10 is not lengthened, and the entire equipment is compact and easy to use. It is a thing.

[0026]

As described above, according to the present invention, since secondary combustion is performed in the secondary combustion chamber having a wide space in the upper portion of the combustion cylinder, complete combustion is achieved in one combustion cylinder. Unburned gas is prevented from being released into the room and can always be used with peace of mind. Moreover, it is possible to obtain good combustion with a simple structure without increasing the size of the equipment. .

Further, if a combustion ring is provided at the upper end of the glass outer cylinder so as to stand higher than the flame spreader plate and form a hole or a clearance through which the secondary air flows, a fresh fuel for secondary combustion can be obtained from the outside. It is possible to obtain air and complete combustion.

If a plurality of small holes are formed in the lid at the upper end of the inner cylinder, the air circulating in the inner cylinder can be supplied to the secondary combustion chamber as secondary air from the small holes. It is possible to complete complete combustion.

In the support cylinder that connects the lid at the upper end of the inner cylinder and the flame spread plate,
If a plurality of secondary air holes for supplying the air flowing from the opening in the center of the lid body to the secondary combustion chamber as secondary air are provided, a large amount of secondary air is also supplied to the secondary combustion chamber, which is good. The secondary combustion can be performed.

If a plurality of ventilation holes are provided at the end of the flame spreading plate facing the fuel wick, the unburned gas at the time of fire extinguishing that is difficult to escape from the flame spreading plate will easily escape from the ventilation hole. Can be shortened.

[Brief description of drawings]

FIG. 1 is a sectional view of a combustion cylinder according to an embodiment of the present invention.

[Explanation of symbols]

10 Combustion cylinder 11 inner cylinder 12 middle cylinder 13 Outer cylinder base 16 glass outer cylinder 17, 18 small holes 19 Outer cylinder holder 20 small holes 21 Secondary combustion chamber 22 Lid 23 Support tube 24 Flame spreader 25 small holes 26 openings 27 Secondary air hole 28 Combustion ring 31 Gap 32 ventilation holes

Continued front page    F term (reference) 3K023 KA03 KB02 KD02                 3K047 AA01 AB02 AC32 AC34 AJ01                       AJ06

Claims (5)

[Claims] 1. An inner cylinder and a middle cylinder having at least a large number of small holes, an outer glass outer cylinder and an outer cylinder base on which the glass outer cylinder is mounted, and an upper end of the glass outer cylinder. In what was supported by the outer cylinder presser connected to the upper end of the middle cylinder,
The inner cylinder has a lower body than the middle cylinder, and an upper end of the inner cylinder is provided with a flame spreader which is erected from a lid and is located above the middle cylinder and the glass outer cylinder and expands outward to be larger than the diameter of the inner cylinder. A combustion cylinder of an oil combustion apparatus, characterized in that a large space secondary combustion chamber surrounded by a middle cylinder and the flame expanding plate is formed above the inner cylinder. 2. The petroleum oil according to claim 1, wherein the upper end of the glass outer cylinder is provided with a combustion ring which is erected higher than the flame expanding plate and which has a hole or a clearance through which secondary air flows. Combustion tube of a burning appliance. 3. The combustion cylinder of the petroleum combustion appliance according to claim 1, wherein a plurality of small holes are formed in the lid at the upper end of the inner cylinder. 4. A plurality of secondary air for supplying air, which flows from an opening at the center of the lid, to the secondary combustion chamber as secondary air in the support cylinder that connects the lid at the upper end of the inner cylinder to the flame spread plate. The combustion cylinder of the petroleum combustion appliance according to claim 1, wherein the combustion cylinder has a hole. 5. The combustion cylinder of the petroleum combustion appliance according to claim 1, wherein a plurality of ventilation holes are provided at a position facing the fuel core at the tip of the flame spreading plate.