JPS63286605A - Combustion device - Google Patents

Abstract

PURPOSE:To prevent sound or agitation of flame upon strongest combustion or blowing of air against the title device, by providing an inner flame tube with a part having no hole at a part opposing to one part of the venting holes of an air control tube. CONSTITUTION:An inner flame tube 6 is provided with a part 34 having no hole at a part opposing to the venting hole 28 of an air control tube 21. Flames, kept in the part, will never be disturbed by the flow of air and will never generate combustion noise since the part of the inner tube 6, which is opposed to the venting hole 28, is not provided with any holes. Further, air from the venting hole 28 is taken into lower flow controlling area in the form of controlled airflow, therefore, the air is mixed with unburnt gas efficiently. It is true of the case where the exposing height of a wick 1 is lowered. The prompt combustion may be promoted in a condition that the combustion noise or the agitation of the flame is never generated, therefore, clean combustion, seldom generating CO gas or smell, may be realized.

Description

DETAILED DESCRIPTION OF THE INVENTION FIELD OF INDUSTRIAL APPLICATION The present invention relates to a combustion device used for home heating and the like.

2. Description of the Related Art Conventionally, this type of combustion apparatus includes a wick-type combustion apparatus used for petroleum, etc. This wick-type combustion device does not require a 100'/power source like oil fan heaters, etc. In other words, it does not require a power cord, so it has the advantage of being easily portable, but on the other hand, if you reduce the amount of combustion a little, a lot of CO will be generated. There was a problem that the initial combustion song adjustment width was narrow.

As a solution to this problem, the applicant has already proposed a combustion device as shown in FIG. 3, which allows for a wide range of combustion amount adjustment. This combustion device will be explained below.
In FIG. 3, numeral 1 is a lamp wick, which is set so as to be vertically movable between an inner wick tube 2 and an outer wick tube 3. The upper ends of the inner wick tube 2 and the outer wick tube 3 are each connected to an inner tray 4. , forming Gaidai@5,
An inner flame tube 6 and an outer flame tube 7 are placed. The tip of the wick 1 is connected to the combustion chamber 8 formed between the inner flame tube 6 and the outer flame tube 7 during combustion.
The combustion vaporization takes place here. Reference numeral 9 denotes an outer cylinder, and the inner flame cylinder 6, outer flame cylinder 7, and outer cylinder 9 are arranged approximately concentrically in order from the inside [integrated by a pin 10]. 1
Reference numeral 1 denotes a large number of air holes provided in the inner flame tube 6 and the outer flame tube 7. Reference numeral 12 denotes an inner flame tube top plate that closes the upper end opening of the inner flame tube 6, and has a ventilation hole 13 communicating upward from the inside of the inner flame tube 6. 14 is a flame expansion plate placed on the top plate 12 of the inner flame tube. A constriction part 15 is formed at the upper end of the outer cylinder 9, and a glowing part 16 is formed in the outer flame cylinder 7 above the constriction part 15, and a large through hole 17 is provided. 18
is a transparent tube made of a transparent material such as glass, and is placed on the outer flame tube 9.

A top frame 19 is placed on the upper end of the red-hot part 16 so as to cover the upper end of the air passage 20 between the red-hot part 16 and the transparent cylinder 18, and fixes the transparent cylinder 18. 21 is the inner flame cylinder 6
A flow control tube installed inward, which extends upward from near the position facing the tip of the lamp wick 1 to near the tip of the inner flame tube 6, and covers the control area 22 formed between the inner flame tubes 6 with its bottom surface. It is set up for this reason. 23 is an air introduction path. Reference numeral 24 denotes a combustion control tube, which is set at the inner upper part of the outer flame tube air hole portion 25, and whose upper end extends to a position near the position facing the throttle portion 15 of the outer flame tube 9, and an air chamber 26 is formed between it and the air hole portion 25. has been done. 2
Reference numeral 7 denotes communication holes provided in the wall of the combustion control cylinder 24, which are uniformly provided in large numbers so as to communicate the air chamber 26 and the combustion chamber 8. Reference numeral 28 denotes a vent hole provided in the middle lower wall surface of the flow control tube 21 . Reference numeral 29 denotes a shielding part that divides the control area 22 into a royal area 30 and an upper area 31 directly above the ventilation hole 28, and is formed by applying beading, flaring, etc. to make the flow control tube 21 protrude toward the outer circumference. are doing.

Reference numeral 32 denotes a ventilation section that is set to have a constant interval between the flow control tube 21 and the inner flame tube top plate 12.

In the above configuration, when the lamp wick 1 is ignited, combustion starts, and high-temperature combustion gas due to combustion rises in the combustion chamber 8, creating a thermal draft, and the air necessary for combustion is supplied to the air holes in the inner flame tube 6 and outer flame tube 7. 11 and the through hole 17 of the red-hot part 16 into the combustion chamber 8, and combustion continues. At this time, the inner flame tube 6
Air supplied from inside is passed from below the flow control tube 21 to the lamp wick 1.
The air flow is divided into air that is supplied nearby and air that ascends through the air introduction path. A portion of the rising air passes through the vent 28 and is supplied to the combustion chamber 8. In addition, the inner flame tube 6
The air supplied upward is supplied to the combustion chamber 8 and above from the air hole 11 and the ventilation hole 13. A portion also descends to the upper flow region 31 and is also supplied to the combustion chamber 8 from the relatively lower air holes 11 . - The masculinized fuel becomes a mixed gas with air and mainly rises in the combustion chamber 8. However, since the monarch basin 30 and the upper basin 31 have negative pressure,
A part of the mixed gas flows into the royal basin 30 and the upper basin 31. Therefore, the monarchy basin 30. The upper flow area 31 is filled with unburned gas. This unburnt gas is mixed with the air flow in the communication hole 28 and the ventilation section 32, and is again supplied to the combustion chamber. Therefore, during strong twist firing, unburned gas and air are supplied near the top of the combustion chamber 8 in a well-mixed state from near the top of the inner flame tube 6, so that the combustion is efficient near area A, and the combustion is not completed in the The unburned gas is combusted by the flame that forms above. Next, as the exposed height of the wick 1 is lowered to reduce the amount of combustion, the flame gradually descends into the combustion chamber 8. The flow in this case is similar to that during hard-twist firing. Since the amount of vaporized gas is greatly reduced, the amount of unburned gas flowing into the upper basin 31 is also reduced. Therefore, the vicinity of region B is a good mixing region, a flame holding state is formed in this region, the 6 walls of the inner flame tube are made red hot, and the combustion is completed with the flame formed above. In this case, most of the unburned gas that has flowed into the upper flow 31 is supplied into the combustion chamber 8 and burned by the flame, so that in the upper flow area 31 facing above the flame, the unburned gas component is Almost no air vents 11 above the flame
The air discharged from the vents 13 is clean and has excellent exhaust gas characteristics (
CO/CO2) does not deteriorate. Therefore, the combustion amount can be reduced to a considerably low level, and the combustion amount is wide during adjustment.

Further, even at the time of ignition, air is efficiently supplied to the lower part of the combustion chamber 8 from the communication hole 27 and the ventilation hole 28, so that combustion is quickly promoted and less CO2 odor is generated. A similar effect can also be obtained by burning for a long time in a well-sealed room. In other words, under oxygen-deficient conditions, the amount of combustion decreases as the oxygen concentration decreases, and a phenomenon similar to that seen when the exposed height of the lamp wick 1 is lowered to reduce the amount of combustion is observed. Since air is supplied to the combustion chamber 8 through the pores, combustion is promoted there and oxygen deficiency characteristics are also improved.

Problems to be Solved by the Invention However, in the above configuration, the vent hole 2 of the flow control cylinder 21
Since the pores 33 of the inner flame cylinder 6 facing B are easily affected by changes in the amount and flow velocity of air flowing in from the vent hole 28, flame holding becomes extremely unstable and the combustion There were practical problems such as pulsating noise and flame shaking. This phenomenon is particularly likely to occur during the strongest twist firing, where the thermal draft is strong and the flow velocity is maximum, or when there is an external air flow such as wind.

The present invention solves these conventional problems by preventing noise and flame shaking during maximum twisting and wind blowing.
The objective is to obtain a safe and comfortable combustion device that has good combustion characteristics, a wide range of combustion amount adjustment, and has no practical problems.

Means for Solving the Problems In order to solve the above problems, the present invention has been developed. In the 3'6 device, a non-porous portion is provided in the inner flame tube at a portion facing at least one of the ventilation holes of the flow control tube.

Effect The present invention, with the above-described configuration, suppresses the influence of air from the ventilation holes of the flow restrictor tube from directly reaching the flame-holding pores of the inner flame tube, and after mitigating fluctuations in flow velocity and flow rate to a certain extent. This allows combustion to continue without producing combustion noise or flame fluctuation.

Embodiments Hereinafter, embodiments of the present invention will be described based on the accompanying drawings. Parts that are the same as those in FIG.
A non-porous portion 34 is provided in a portion of the inner flame tube 6 that faces the ventilation hole 28 of the flow control tube 21.

In the above configuration, combustion is carried out in the same manner as that shown in FIG. Therefore, the flame stability in that part is not disturbed by air flow and no combustion noise is generated. In addition, since the air from the vents is taken into the monarchy basin in a clear form, it can be mixed with unburned ganu efficiently. This theory holds true even when the exposed height of the lamp wick 1 is lowered. In this way, combustion is promoted quickly without generation of combustion noise or turbulence of flame, and clean combustion with less CO and odor can be achieved.

In the above embodiment, the case where there are two ventilation holes and one shielding part 29 has been described, but the same effect can be obtained even if a configuration with two or more ventilation holes is used as shown in FIG.

Effects of the Invention As described above, according to the combustion apparatus of the present invention, not only the amount of combustion can be adjusted more widely, but also because the inner flame tube is provided with a non-porous part in the part facing the vent hole of the flow control tube. There is no combustion noise or flame fluctuation, and a safe and practically comfortable combustion device with a wide range of combustion amount adjustment can be obtained.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a main part of a combustion device according to an embodiment of the present invention, FIG. 2 is a sectional view of a main part of a combustion device according to another embodiment of the invention, and FIG. 3 is a sectional view of a main part of a combustion device according to a conventional example. It is a sectional view of the main part. 1...Light wick, 6...Inner flame cylinder, 7...
...Outer flame tube, 8... Combustion chamber, 9...
Outer cylinder, 11... Air hole, 18... Transmission tube, 21... Control tube, 22... Control area, 24... - Combustion control tube, 25... air hole section, 26... air chamber, 27... communication hole, 28... ventilation hole, 29...・・Shielding part,
33... Inner flame tube air hole, 34... Inner flame tube non-porous part. Name of agent: Patent attorney Toshio Nakao (1 person)
Light 2 n-・枦I 連 6- Inner flame 冑 24- 出溺やI 控珂7″−外马阿25-Kishifu 8-・Da戊2 A-y Ki Sumire 9-ben quotient n series JLL 11-Ichibou Air Room 28--Dori t3L 18-Emperor η-Zuie Ikuzt -fI Ryuhan Calculation-Kokomibu Fig. 1 Fig. 2

Claims (1)

[Claims] An outer flame tube consisting of a pore section having a large number of air holes and a red-hot section formed above the pore section, an inner flame tube having a large number of air holes disposed inside the outer flame tube, and a former outer flame tube. an outer cylinder located outwardly, a transparent cylinder placed above the outer cylinder, and a lamp wick vertically movable at a lower end of a combustion chamber formed between the outer flame cylinder and the inner flame cylinder; a flow control tube disposed inside the inner flame tube, extending from near a position facing the lamp wick to near an upper end of the inner flame tube, and shielding a control area formed between the inner flame tube and the inner flame tube with a lower surface; , a communication hole provided in at least one place on the wall surface of the flow control cylinder; a shielding part that divides the control area into upper and lower parts immediately above the communication hole; a combustion control tube forming an air chamber between the combustion control tube and a communication hole provided in a wall surface of the combustion control tube; Combustion device with holes.