JPH0754163B2 - Combustion device - Google Patents

Description

【発明の詳細な説明】 産業上の利用分野 本発明は家庭用の暖房等に用いられている燃焼装置に関
するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combustion device used for household heating or the like.

従来の技術 従来、この種の燃焼装置としては石油ストーブ等に用い
られている吸上げ気化方式の燃焼装置があるが、これは
第２図に示す様に、多数の空気孔を有する内炎筒51と外
炎筒52間に形成される燃焼室53に燃料供給部である灯芯
54先端を露出させて燃料を気化、燃焼させるようになっ
ている。そして通常外炎筒52は外筒55の絞り部55aより
上方では開口面積の大きな透孔56aを有した赤熱部56を
形成しており、灯芯54から気化した燃料と透孔56aから
燃焼室53内に導入した空気を混合して燃焼させ、赤熱部
56を赤熱させ、輻射熱を得ていた。2. Description of the Related Art Conventionally, as this type of combustion apparatus, there is a suction vaporization type combustion apparatus used in petroleum stoves and the like. However, as shown in FIG. 2, this is an internal flame cylinder having a large number of air holes. A wick, which is a fuel supply unit, is provided in a combustion chamber 53 formed between the outer cylinder 51 and the outer flame cylinder 52.
54 The tip is exposed to vaporize and burn the fuel. The normal outer flame cylinder 52 forms a red heating portion 56 having a through hole 56a having a large opening area above the throttle portion 55a of the outer cylinder 55, and the fuel vaporized from the wick 54 and the combustion chamber 53 from the through hole 56a. The air introduced inside is mixed and burned, and the red heat part
56 was red-hot and had radiant heat.

発明が解決しようとする問題点 しかしながら上記従来の構成では次の様な問題を生じて
いた。すなわち第２図で実線矢印は空気の流れ、破線矢
印は未燃ガスの流れを示す。この図面から明らかなよう
に従来の燃焼装置は内炎筒51の内側へ未燃ガスが洩出
し、これが燃焼量を絞った時にそのまま上方へと流出し
てCO量が増加するのであり、それがために燃焼量調節巾
を広くすることができなかった。Problems to be Solved by the Invention However, the above-described conventional configuration has the following problems. That is, in FIG. 2, the solid arrow indicates the flow of air and the broken arrow indicates the flow of unburned gas. As is clear from this drawing, in the conventional combustion device, unburned gas leaks to the inside of the inner flame cylinder 51, and when this reduces the combustion amount, it flows upward as it is and the CO amount increases. Therefore, the combustion amount adjustment range could not be widened.

本発明はこのような点に鑑みてなしたもので、燃焼量を
絞った時のCO量を少なくして燃焼量調節巾を広くするこ
とを目的としたものである。The present invention has been made in view of the above circumstances, and an object thereof is to reduce the amount of CO when the amount of combustion is reduced and to widen the amount of combustion adjustment.

問題点を解決するための手段 上記問題点を解決するために本発明の燃焼装置では、内
炎筒の内方に配設されて、燃料供給部に対向する位置近
傍から上方へ伸びる制流筒と、この制流筒と内炎筒との
間に形成される制流域の下部開口面積を縮小する整流板
を備え、この整流板には段付き部を嵌合させて制流筒と
一体化させるとともに、制流筒の内方にある整流板には
孔を設け、制流筒の外方にある整流板は無孔部とした構
成としてある。Means for Solving the Problems In order to solve the above-mentioned problems, in the combustion apparatus of the present invention, the flow restricting cylinder is arranged inside the inner flame cylinder and extends upward from the vicinity of the position facing the fuel supply portion. And a flow straightening plate that reduces the lower opening area of the flow limiting area formed between the flow limiting cylinder and the internal flame cylinder. A stepped portion is fitted to this flow straightening plate to integrate with the flow limiting cylinder. In addition, a hole is provided in the straightening vane inside the flow restricting cylinder, and a straightening plate outside the flow restricting cylinder is a non-perforated part.

作用 本発明は上記した構成により、制流域に未燃ガスを導入
し、この未燃ガスを制流筒上方に供給される清浄な空気
によって混合しながら、制流筒上端付近の内炎筒空気孔
から集中的に燃焼室に供給し、燃焼を促進させるととも
に、内炎筒上端内部は未燃ガス成分の少ない清浄な状態
に保つことができる。Effect The present invention has the above-described configuration and introduces unburned gas into the control region, and while mixing the unburned gas with the clean air supplied above the control cylinder, the air in the inner flame cylinder near the upper end of the control cylinder is mixed. It is possible to intensively supply the gas from the holes to the combustion chamber to promote combustion, and to maintain the inside of the upper end of the inner flame cylinder in a clean state with a small amount of unburned gas components.

実施例 以下、本発明の実施例を添付図面にもとづいて説明す
る。第１図において、１は灯芯で、芯内筒２と芯外筒３
の間に上下動自在に設定されている。芯内筒２と芯外筒
３の上端部はそれぞれ内火皿４、外火皿５を形成してお
り、内炎筒６、外炎筒７が載置されている。灯芯１の先
端は燃焼時には内炎筒６と外炎筒７間に形成される燃焼
室８内に露出され、ここで燃焼の気化が行われる。９は
外筒で、内炎筒６、外炎筒７、外筒９は内方より順次略
同心状に配置され固定ピン10によって一体化されてい
る。11は内炎筒６および外炎筒７に多数設けられた空気
孔である。12は内炎筒６の上端開口部を閉塞する内炎筒
天板で、内炎筒６内方から上方へ通じる通気孔13を有し
ている。14は内炎筒天板12上に載置された拡炎板であ
る。外筒９の上端には絞り部15が形成され、さらにこの
絞り部15より上方の外炎筒７には赤熱部16が形成され、
開口の大きな透孔17が設けられている。18はガラス等の
透過性材料よりなる透過筒で、外筒９上に載置されてい
る。19はトップフレムで、赤熱部16と透過筒18の間の空
気通路20の上端を遮蔽するように赤熱部16の上端に載置
され、透過筒18を固定している。Embodiments Embodiments of the present invention will be described below with reference to the accompanying drawings. In FIG. 1, reference numeral 1 denotes a wick, which includes an inner core tube 2 and an outer core tube 3.
It is set so that it can move up and down. The upper ends of the inner core tube 2 and the outer core tube 3 respectively form an inner fire tray 4 and an outer fire tray 5, on which an inner flame barrel 6 and an outer flame barrel 7 are placed. At the time of combustion, the tip of the wick 1 is exposed inside a combustion chamber 8 formed between the inner flame cylinder 6 and the outer flame cylinder 7, where the combustion is vaporized. Reference numeral 9 denotes an outer cylinder, and the inner flame cylinder 6, the outer flame cylinder 7, and the outer cylinder 9 are sequentially arranged from the inside in a substantially concentric manner and are integrated by a fixing pin 10. Reference numeral 11 denotes air holes provided in the inner flame cylinder 6 and the outer flame cylinder 7. Reference numeral 12 denotes an inner-flame cylinder top plate that closes the upper end opening of the inner-flame cylinder 6 and has a vent hole 13 that communicates upward from the inside of the inner-flame cylinder 6. Reference numeral 14 is a flame spreading plate placed on the inner flame cylinder top plate 12. A throttle portion 15 is formed on the upper end of the outer cylinder 9, and a red heat portion 16 is formed on the outer flame cylinder 7 above the throttle portion 15,
A through hole 17 having a large opening is provided. A transparent cylinder 18 made of a transparent material such as glass is placed on the outer cylinder 9. Reference numeral 19 denotes a top frame, which is placed on the upper end of the red heat section 16 so as to shield the upper end of the air passage 20 between the red heat section 16 and the transmission tube 18, and fixes the transmission tube 18.

21は内炎筒６内方に設置された制流筒で、灯芯１先端に
対向する位置近傍から内炎筒６先端付近まで上方への
び、かつ内炎筒６との間に制流域22を形成している。34
は制流筒で、中央付近に孔34a、34bが設けられており、
下制流域30の下部、すなわち制流筒21の下部開口面積を
縮小するように、無孔部34dのある段付き部34cを嵌合さ
せて制流筒21に取付けてある。そして、制流筒21の外方
である、制流筒21と内炎筒６の間にあるこの段付き部34
cは無孔部34dとした構成としてある。23は空気導入路で
ある。24は燃焼制御筒で、外炎筒気孔部25内方上部に設
定され、上端は外筒９の絞り部15に対向する位置近傍ま
で伸び、気孔部25との間に空気室26が形成されている。
27は燃焼制御筒24壁面に設けられた連通孔で、空気室26
と燃焼室８を連通するごとく多数均一に設けられてい
る。28は制流筒21中下部壁面に設けられた通気孔であ
る。29は通気孔28直上で制流域22を下制流域30と上制流
域31とに分割する遮蔽部で、ビーディング加工やフレア
加工等を応用して制流筒21を外周方向に突出させること
によって形成している。32は制流筒21と内炎筒天板12と
の間に一定の間隔を有するように設定された通気部であ
る。Reference numeral 21 is a flow restricting cylinder installed inside the inner flame cylinder 6, and extends upward from the vicinity of the position facing the tip of the wick 1 to the vicinity of the end of the inner flame cylinder 6 and forms a restriction region 22 with the inner flame cylinder 6. Is forming. 34
Is a flow control cylinder, and holes 34a and 34b are provided near the center,
A stepped portion 34c having a non-perforated portion 34d is fitted and attached to the flow control tube 21 so as to reduce the lower opening area of the flow control tube 21, that is, the lower opening area of the flow control tube 21. This stepped portion 34, which is outside the flow restricting cylinder 21 and is located between the flow restricting cylinder 21 and the inner flame cylinder 6,
The c is configured as a non-hole portion 34d. 23 is an air introduction path. Reference numeral 24 denotes a combustion control cylinder, which is set in the upper inside of the outer flame cylinder pore portion 25 and extends to the vicinity of the position facing the throttle portion 15 of the outer cylinder 9, and an air chamber 26 is formed between it and the pore portion 25. ing.
27 is a communication hole provided in the wall surface of the combustion control cylinder 24, which
And a plurality of combustion chambers 8 communicate with each other. Reference numeral 28 is a ventilation hole provided on the lower wall surface of the flow control cylinder 21. Reference numeral 29 is a shielding portion that divides the control region 22 into a lower control region 30 and an upper control region 31 directly above the ventilation hole 28, and uses the beading process or flare process to project the control cylinder 21 in the outer peripheral direction. Is formed by. Reference numeral 32 is a ventilation part which is set so as to have a constant space between the flow restricting cylinder 21 and the inner flame cylinder top plate 12.

上記構成において灯芯１に点火すると燃焼開始し、燃焼
による高温の燃焼ガスが燃焼室８を上昇することにより
熱ドラフトを生じ、燃焼に必要な空気が内炎筒６、外炎
筒７の空気孔11および赤熱部16の透孔17より燃焼室８内
に供給され燃焼が継続される。このとき内炎筒６内方か
ら供給される空気は、大きくは、制流筒21下方から灯芯
１近傍に供給される空気と、空気導入路23を上昇する空
気の流れに分けられる。上昇した空気の一部は、通気孔
28を通過し、下制流域30を介して燃焼室８へ供給され
る。さらに内炎筒６上方に供給された空気は、空気孔11
や通気孔13から燃焼室８およびその上方へ供給される。
また一部は、上制流域31に降下し、比較的下方の空気孔
11からも燃焼室８に供給される。In the above structure, when the wick 1 is ignited, combustion starts, and a high temperature combustion gas generated by combustion rises in the combustion chamber 8 to generate a thermal draft, and the air required for combustion is the air holes of the inner flame cylinder 6 and the outer flame cylinder 7. 11 and the through holes 17 of the red heat section 16 are supplied into the combustion chamber 8 to continue combustion. At this time, the air supplied from the inside of the inner flame cylinder 6 is roughly divided into the air supplied from below the flow restricting cylinder 21 to the vicinity of the wick 1 and the flow of air rising in the air introduction passage 23. Some of the rising air is vented
After passing through 28, it is supplied to the combustion chamber 8 through the lower control region 30. Further, the air supplied above the inner flame cylinder 6 has air holes 11
The gas is supplied to the combustion chamber 8 and the upper portion thereof through the ventilation holes 13.
In addition, part of the air drops into the upper control area 31
It is also supplied to the combustion chamber 8 from 11.

一方気化された燃料は、空気との混合ガスとなって主と
して燃焼室８を上昇する。その際、燃焼室８内から未燃
ガスが下制流域30に洩出する。これは未燃ガスの拡散性
が高いことと、下制流域30の下部に整流板34の無孔部34
dのある段付き部34cが存在していて下制流域30下部の開
口が段付き部34Cと内炎筒６との間の隙間開口に制限さ
れていることから生じる下制流域30の負圧（段付き部34
Cがない場合に比較して負圧気味になっている）のため
である。On the other hand, the vaporized fuel becomes a mixed gas with air and mainly rises in the combustion chamber 8. At that time, unburned gas leaks from the combustion chamber 8 to the lower control region 30. This is due to the high diffusivity of unburned gas and the non-perforated part 34
Negative pressure in the lower control region 30 caused by the existence of the stepped portion 34c with d and the opening at the lower part of the lower control region 30 being restricted to the gap opening between the stepped portion 34C and the inner flame cylinder 6 (Stepped portion 34
It is more negative than in the case without C).

しかしながら上記下制流域30に洩出した未燃ガスは、下
制流域30の下部開口が無孔部34dのある段付き部34cで制
限されているので、その分この下部開口（この実施例で
は段付き部34Cと内炎筒６との間の隙間開口）より下制
流外へ逆流洩出するのを防止される。そして上記段付き
部34Cと内炎筒６との間から流入するわずかな新鮮空気
や通気孔28、通気部32から流入してくる空気流と混合さ
れ、再び燃焼室へ供給される。したがって強燃焼時には
内炎筒６の上端付近から未燃ガスと空気を良く混合した
状態で燃焼室８上端付近に供給するので領域Ａ付近で効
率よく燃焼させ、さらにここで燃焼しきれなかった未燃
ガスは上方に形成される火炎で燃焼される。However, the unburned gas leaking into the lower control region 30 is limited by the stepped portion 34c having the non-perforated portion 34d in the lower control region 30. Backflow to the outside of the lower control flow is prevented through a gap opening between the stepped portion 34C and the inner flame cylinder 6). Then, it is mixed with a small amount of fresh air flowing in between the stepped portion 34C and the inner flame tube 6 and the airflow flowing in from the ventilation hole 28 and the ventilation portion 32, and is again supplied to the combustion chamber. Therefore, during strong combustion, unburned gas and air are supplied to the vicinity of the upper end of the combustion chamber 8 from the vicinity of the upper end of the inner flame cylinder 6 in a well-mixed state, so that they are efficiently combusted in the vicinity of the region A, and the combustion cannot be completed here. The combustion gas is burned by the flame formed above.

次に灯芯１の露出高さを低くして燃焼量を小さくしてい
くと、火炎は次第に燃焼室８内に下降していく。この場
合の流れも強燃焼時と同様であるが、気化ガスは大巾に
減少しているので、上制流域31へ流入する未燃ガス量も
減少する。従って領域Ｂ付近が良好な混合領域となり、
この部分で保炎を形成し、内炎筒６壁面を赤熱させ、さ
らにその上方に形成される火炎で燃焼を完結させる。こ
の場合、上制流域31に流入した未燃ガスは、ほとんどが
燃焼室８内に供給され火炎で燃焼されるので、その火炎
より上方に対向する上制流域31では未燃ガス成分はほと
んどなく、火炎より上方の空気孔11や通気孔13から排出
される空気は清く、排ガス特性（CO/CO₂）は悪化しな
い。したがってかなり低いところまで燃焼量を絞ること
ができ、燃焼調節巾は広いものとなる。Next, when the exposed height of the wick 1 is lowered to decrease the combustion amount, the flame gradually descends into the combustion chamber 8. The flow in this case is also similar to that in the strong combustion, but the amount of vaporized gas is greatly reduced, so the amount of unburned gas flowing into the upper control region 31 is also reduced. Therefore, the vicinity of region B is a good mixed region,
Flame-holding is formed at this portion, the wall surface of the inner flame cylinder 6 is red-heated, and combustion is completed by the flame formed above it. In this case, most of the unburned gas that has flowed into the upper control region 31 is supplied to the combustion chamber 8 and burned by the flame. Therefore, there is almost no unburned gas component in the upper control region 31 that faces above the flame. The air discharged from the air holes 11 and the air holes 13 above the flame is clean, and the exhaust gas characteristics (CO / CO ₂ ) do not deteriorate. Therefore, the combustion amount can be narrowed down to a considerably low position, and the combustion adjustment range becomes wide.

一方、燃焼中においては制流筒21や内炎筒６はかなりの
高温度になり、灯芯１がその輻射熱を受けるために、芯
内筒２の温度が上昇したり、灯芯１の露出高さを低くし
ても燃焼量が下がらない等の問題が生じる可能性がある
が、それに対して、制流筒21と内炎筒６との間に形成さ
れる制流域22の下部開口面積を縮小する整流板34を備
え、整流板34は段付き部34cを嵌合させて制流筒21と一
体化させるとともに、制流筒21の内方にある整流板34に
は孔34a、34bを設け、制流筒21の外方にある整流板34は
無孔部34dとしていることにより、上部からの熱をさえ
ぎることができ、灯芯１の温度が上昇し、燃焼量が下が
らないということがなくなり、灯芯１の高さを低くすれ
ばそれに準じて燃焼量を下げることができるとともに、
灯芯１を芯内筒よりも下に下げて、消火させようとした
場合にも、芯内筒２の温度を低く維持することにより、
短時間で消火させることができ、安全性の向上が図れ
る。また、制御筒21の内方にある整流板34には孔34a、3
4bを設けていることにより、制流筒21に流入する空気流
速を均一に保つとともに、その部分で整流効果を高める
ことができるので、強燃焼時において、制流筒21内方を
通過し、領域Ａに供給される空気は全周均一なものとな
り、燃焼の片寄り、火炎の片寄りを防ぐことにより、排
ガス特性の向上や、火炎がリフトあるい黄火になったり
することを防ぐことができる。さらに、制流筒21には整
流板34が段付き部34cを嵌合させて取り付けられてお
り、制流筒21の外方にある整流板34は無孔部34dとして
あることにより、制流筒21には別途別部材をつける必要
がなく、制流域22の下方を遮蔽することができる。制流
筒21はビーディング加工やフレア加工等を応用した遮蔽
部29を中央部に有しているが、このような加工を行いつ
つ、下方にも制流域22を遮蔽するフランジ部を形成しよ
うとすると、加工工程の増加となるとともに、そのフラ
ンジ部に真円度が出にくくなっているが、別部材である
整流板34を遮蔽部を構成するように設けることにより、
その点を解消できる。その上、制流筒21には整流板34が
段付き部34cを嵌合させて取り付けられており、制流筒2
1の真円度を保つことができることにより、内炎筒６と
制流筒21の間隙を均一に保つことができ、燃焼の均一化
が図れ、排ガス特性の悪化を防ぐことができる。特に制
流筒21は内炎筒６の輻射熱をうけ高温になるので、長期
間使用した場合に生じ易い熱変形も防ぐことができ、長
期間に渡って、燃焼範囲の広い、安全で快適性の高い燃
焼装置を提供することができる。On the other hand, during combustion, the flow control cylinder 21 and the inner flame cylinder 6 reach a considerably high temperature, and the wick 1 receives the radiant heat, so that the temperature of the core inner cylinder 2 rises and the exposed height of the wick 1 increases. There is a possibility that the combustion amount will not decrease even if the pressure is lowered, but in contrast to this, the lower opening area of the flow control region 22 formed between the flow control cylinder 21 and the inner flame cylinder 6 is reduced. The flow straightening plate 34 is integrated with the flow restricting cylinder 21 by fitting the stepped portion 34c, and the flow straightening plate 34 inside the flow restricting cylinder 21 is provided with holes 34a and 34b. Since the current plate 34 outside the flow restricting cylinder 21 has the non-perforated portion 34d, the heat from the upper portion can be blocked, and the temperature of the wick 1 rises and the amount of combustion does not decrease. By lowering the height of the wick 1, the combustion amount can be reduced accordingly, and
Even if the wick 1 is lowered below the inner core to extinguish the fire, by keeping the temperature of the inner core 2 low,
The fire can be extinguished in a short time and the safety can be improved. Further, the current plate 34 inside the control cylinder 21 has holes 34a, 3
By providing 4b, the flow velocity of the air flowing into the flow restricting cylinder 21 can be kept uniform, and the rectifying effect can be enhanced at that portion, so that during strong combustion, it passes inside the flow restricting cylinder 21, The air supplied to the area A becomes uniform around the entire circumference, and by preventing the deviation of combustion and the deviation of flame, it is possible to improve the exhaust gas characteristics and prevent the flame from becoming a lift or yellow fire. You can Further, the flow regulating plate 34 is attached to the flow restricting cylinder 21 by fitting the stepped portion 34c, and the flow regulating plate 34 outside the flow restricting cylinder 21 is the non-perforated portion 34d, so that the flow restricting plate 34 is controlled. It is not necessary to attach a separate member to the tube 21, and the lower part of the flow control area 22 can be shielded. The flow control cylinder 21 has a shielding portion 29 in the center thereof, which uses beading processing, flare processing, etc., but while performing such processing, let's form a flange portion that also shields the flow control area 22 below. Then, as the number of processing steps increases, the roundness of the flange portion is less likely to occur, but by providing the current plate 34, which is a separate member, so as to configure the shielding portion,
That point can be eliminated. In addition, a flow regulating plate 34 is attached to the flow control cylinder 21 with a stepped portion 34c fitted therein.
Since the circularity of 1 can be maintained, the gap between the inner flame cylinder 6 and the flow restricting cylinder 21 can be kept uniform, combustion can be made uniform, and deterioration of exhaust gas characteristics can be prevented. In particular, the flow restricting cylinder 21 receives the radiant heat of the inner flame cylinder 6 and becomes high temperature, so that it is possible to prevent thermal deformation that tends to occur when used for a long period of time, and has a wide combustion range, safety and comfort over a long period of time. It is possible to provide a high combustion device.

なお本実施例の燃焼筒は外炎筒の側に燃焼制御筒24を設
けているのでさらに排ガス特性が向上する利点がある。
すなわち外側からの空気は外筒９の上端の絞り部15で外
炎筒７の空気孔11と赤熱部16の透孔17からの空気に分け
られそれぞれ燃焼室８内に供給される。この時外炎筒７
の空気孔11及び赤熱部16の透孔17には保炎が形成されて
いるが、絞り部15と対向する部分で燃焼室内８の未燃ガ
スの一部が内炎筒側ほどではないが空気通路20に漏れる
現象が起きて、そのうちの一部が赤熱部16の透孔17の上
部からそのまま排出される為、低燃焼時にCO/CO₂を悪化
させる。これを少なくする為に設けられたのが前述した
燃焼制御筒24で、外炎筒気孔部25からの空気により空気
室26で未燃ガスを局部的に燃焼させて未燃ガスの漏れ量
を少なくし、漏れた未燃ガスが黒矢印Ｃで示す如く燃焼
室内のドラフトで燃焼室８へ引込まれて燃焼するように
すると共に外炎筒７に沿った空気の流れを起こし、CO/C
O₂の悪化を半減させている。したがって一段と低い所ま
で燃焼量を絞ることができ、燃焼調節巾は広いものとな
る。Since the combustion cylinder of this embodiment is provided with the combustion control cylinder 24 on the side of the outer flame cylinder, there is an advantage that the exhaust gas characteristics are further improved.
That is, the air from the outside is divided into the air from the air hole 11 of the outer flame cylinder 7 and the air from the through hole 17 of the red heat part 16 by the throttle portion 15 at the upper end of the outer cylinder 9 and supplied into the combustion chamber 8, respectively. External flame cylinder 7 at this time
Although the flame holes are formed in the air holes 11 and the through holes 17 of the red heat section 16, a part of the unburned gas in the combustion chamber 8 at the portion facing the throttle section 15 is not as close to the inner flame cylinder side. The phenomenon of leaking to the air passage 20 occurs, and a part of the phenomenon is discharged from the upper part of the through hole 17 of the red heat section 16 as it is, so that CO / CO ₂ is deteriorated during low combustion. In order to reduce this, the above-mentioned combustion control tube 24 is provided to locally burn the unburned gas in the air chamber 26 by the air from the outer flame tube pore portion 25 to reduce the amount of leakage of the unburned gas. The amount of unburned gas that leaks is drawn into the combustion chamber 8 by the draft in the combustion chamber as shown by the black arrow C so that it burns, and the air flow along the outer flame cylinder 7 is generated, resulting in CO / C.
The deterioration of O ₂ is halved. Therefore, the combustion amount can be narrowed down to a lower place, and the combustion adjustment range becomes wide.

また点火時においても連通孔27および通気孔28から燃焼
室８下方に効率よく空気が供給されるので迅速な燃焼促
進が行なわれ、CO、臭気の発生は少ない。また、密閉状
態の良い部屋で長時間燃焼させた場合も同様の効果が得
られる。すなわち、酸欠状態下では、酸素濃度の低下に
ともなって燃焼量が低下し、灯芯１の露出高さを低くし
て燃焼量を少くしていった場合とほぼ同様な現象が見ら
れるが、通気孔28より燃焼室８に空気を供給するので、
そこで燃焼が促進され酸欠特性も良好になる。Further, even at the time of ignition, air is efficiently supplied to the lower portion of the combustion chamber 8 from the communication hole 27 and the ventilation hole 28, so that rapid combustion is promoted and CO and odor are less generated. Also, the same effect can be obtained when the material is burned for a long time in a well-sealed room. That is, in the oxygen-deficient state, the amount of combustion decreases with the decrease in oxygen concentration, and a phenomenon similar to that in the case where the exposed height of the wick 1 is decreased to decrease the amount of combustion is observed. Since air is supplied to the combustion chamber 8 from the vent hole 28,
Therefore, combustion is promoted and the oxygen deficiency characteristic is improved.

発明の効果 以上実施例の説明で明らかなように、本発明の燃焼装置
によれば、燃焼量の調節巾が広がるのはもちろん、輻射
熱の影響のない安定燃焼が得られ、しかも整流板が制流
筒下部の開口を制限する遮蔽部を兼ねているので構成も
簡単なものになり、かつ制流筒の変形を防止できる等、
種々の効果が期待できる。EFFECTS OF THE INVENTION As is clear from the above description of the embodiments, according to the combustion apparatus of the present invention, not only the adjustment range of the combustion amount is widened, but stable combustion without the influence of radiant heat can be obtained, and the rectifying plate is controlled. Since it also serves as a shield that restricts the opening at the bottom of the flow tube, the structure is simple and deformation of the flow control tube can be prevented.
Various effects can be expected.

【図面の簡単な説明】[Brief description of drawings]

第１図は本発明の一実施例における燃焼装置の要部断面
図、第２図は従来例を示す燃焼装置の要部断面図であ
る。 １……灯芯、６……内炎筒、７……外炎筒、８……燃焼
室、９……外筒、11……空気孔、18……透過筒、21……
制流筒、22……制流域、34……整流板、34a・34b……整
流板の孔、34c……整流板の段付き部、34d……整流板の
無孔部。FIG. 1 is a sectional view of an essential part of a combustion apparatus according to an embodiment of the present invention, and FIG. 2 is a sectional view of an essential part of a combustion apparatus showing a conventional example. 1 ... wick, 6 ... inner flame cylinder, 7 ... outer flame cylinder, 8 ... combustion chamber, 9 ... outer cylinder, 11 ... air hole, 18 ... transmission cylinder, 21 ...
Flow restrictor, 22 ... Restriction region, 34 ... Flow plate, 34a / 34b ... Hole in flow plate, 34c ... Stepped part of flow plate, 34d ... No hole in flow plate.

───────────────────────────────────────────────────── フロントページの続き (72)発明者 石川 克彦 大阪府門真市大字門真1006番地 松下電器 産業株式会社内 (72)発明者 宇野 克彦 大阪府門真市大字門真1006番地 松下電器 産業株式会社内 (56)参考文献 特開 昭62−108909（ＪＰ，Ａ) 特開 昭64−67506（ＪＰ，Ａ) ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Katsuhiko Ishikawa 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (72) Inventor, Katsuhiko Uno 1006 Kadoma, Kadoma City, Osaka Matsushita Electric Industrial Co., Ltd. 56) References JP-A-62-108909 (JP, A) JP-A-64-67506 (JP, A)

Claims (1)

【特許請求の範囲】[Claims] 【請求項１】多数の空気孔を有する気孔部とその上方に
形成される赤熱部とからなる外炎筒と、前記外炎筒内方
に配された多数の空気孔を有する内炎筒と、前記外炎筒
外方に位置した外筒と、前記外筒上方に載置された透過
筒と、前記外炎筒と前記内炎筒間に形成される燃焼室下
端に上下動自在に設定された灯芯と、前記内炎筒の内方
に配され前記灯芯に対向する位置近傍から上方へのびる
制流筒と、前記制流筒と前記内炎筒との間に形成される
制流域の下部開口面積を縮小する整流板を備え、前記整
流板は段付き部を嵌合させて前記制流筒と一体化させる
とともに、前記制流筒の内方にある整流板には孔を設
け、前記制流筒の外方にある整流板は無孔部とした燃焼
装置。1. An outer flame cylinder comprising a pore part having a large number of air holes and a red heat part formed above the pore part, and an inner flame cylinder having a large number of air holes arranged inside the outer flame cylinder. , An outer cylinder positioned outside the outer flame cylinder, a transmission cylinder mounted above the outer cylinder, and a vertically movable set at a lower end of a combustion chamber formed between the outer flame cylinder and the inner flame cylinder. Of the flow restricting region formed between the flow restricting cylinder and the internal flame cylinder, and the restricting cylinder extending upward from the vicinity of the position disposed inside the flame inner cylinder and facing the light core. A straightening vane for reducing the lower opening area, the straightening vane is fitted with a stepped portion to be integrated with the flow restricting cylinder, and a hole is provided in the straightening vane inside the restricting cylinder. The combustor in which the straightening vane outside the flow restrictor is a non-perforated part.