JPS63201412A - Combustor - Google Patents

Abstract

PURPOSE:To prevent a rapid deterioration of exhaust gas characteristics under low intensity combustion conditions or oxygen-deficient conditions by disposing multi-staged flow controlling tubes inside the inner flame tube and a guide plate protruding inwardly or inwardly and downwardly at the lower end of the upper flow controlling tube. CONSTITUTION:A lower flow controlling tube 21 disposed in the inner flame tube 6 extends upwardly from a level opposing the top end of the wick 1, and has its bottom in the lower flow controlling zone 22 formed across the inner flame tube 6. A link 25 is so set as to have a certain gas between the lower flow controlling tube 21 and an upper flow controlling tube 23, and a guide plate 26 protrudes inwardly and downwardly from the lower end of the upper flow controlling tube 23. Since there are multi-staged flow controlling tubes 21, 22, combustion gas flowing into the flow controlling tube above the flame becomes gas in the advanced stage of combustion, preventing a large quantity of CO from being released. Further, as the guide late 26 is disposed, enough amount of air can be supplied through the link into the combustion chamber to promote full combustion in the lower part of the combustion chamber.

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る燃焼装置に関する
ものである。DETAILED DESCRIPTION OF THE INVENTION FIELD OF INDUSTRIAL APPLICATION The present invention relates to a combustion device used for home heating and 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
られている吸い上げ気化方式の燃焼装置があるが、これ
はおおむね第５図に示すようなものであった。第５図に
おいて、１は灯芯で芯内筒２と芯外筒３０間に上下動自
在に設定されている。BACKGROUND OF THE INVENTION Conventionally, as a combustion device of this type, there has been a suction vaporization type combustion device used in oil stoves and the like, which is generally as shown in FIG. In FIG. 5, reference numeral 1 denotes a lamp wick, which is set between an inner wick tube 2 and an outer wick tube 30 so as to be vertically movable.

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を形成しておシ、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、ここで燃料の気化
が行われる。９は外筒で内炎筒６、外炎筒７、外筒９は
内方よシ順次略同心円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、この絞シ部１５よシ上方の外
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シな
る透過筒で、外炎筒９上に載置されている。１９はトッ
プフレームで赤熱部１６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。上記構成において、灯芯１
に点火すると燃焼を開始し、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よシ燃焼室８内に供給され燃焼
が継続され、赤熱部１６を赤熱させて、輻射熱を得てい
た。The upper ends of the inner core tube 2 and the outer core tube 3 form an inner flame tray 4 and an outer flame tray 5, respectively, on which are placed an inner flame tube 6 and an outer flame tube 7. During combustion, the tip of the wick 1 is exposed in a combustion chamber 8 formed between an inner flame tube 6 and an outer flame tube 7, where the fuel is vaporized. Reference numeral 9 denotes an outer cylinder, and the inner flame cylinder 6, outer flame cylinder 7, and outer cylinder 9 are arranged in a substantially concentric circle in order from the inside, and are integrated by a fixing pin 10. Reference numeral 11 indicates 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 the inner flame tube top plate 12
This is a flame spreader plate placed on top. A constriction part 15 is formed at the upper end of the outer cylinder 9, and a red-hot part 16 is formed in the outer flame cylinder 7 above the constriction part 15, and a large through hole 17 is formed.
is provided. Reference numeral 18 denotes a transparent tube made of a transparent material such as glass, which is placed on the outer flame tube 9. 19 is a top frame with an air passage 20 between the red-hot part 16 and the transmission tube 18;
placed on the upper end of the incandescent part 16 so as to shield the upper end,
The transmission tube 18 is fixed. In the above configuration, the lamp wick 1
When ignited, combustion starts, and high-temperature combustion gas from combustion rises in the combustion chamber 8, creating a thermal draft, and the air necessary for combustion flows through the air holes 11 of the inner flame tube 6, the outer flame tube 7, and the red-hot section. The fuel was supplied into the combustion chamber 8 through the through holes 17 of 16, and combustion continued, making the red-hot part 16 red-hot and obtaining radiant heat.

発明が解決しようとする問題点 しかし、上記の様な構成では、次のような問題を生じて
いた。Problems to be Solved by the Invention However, the above configuration has caused the following problems.

通常の強燃焼では第５図に示すように、内炎筒６と外炎
筒７上方に二次炎ｆ１を形成し、燃焼室８内を上昇して
きた未燃成分を完全に燃焼させるので良好な排ガス特性
を示す。しかし、灯芯１の露出高さを低くして燃焼量を
小さくした場合は、火炎は燃焼室８内に下がってｆ２の
様に形成される。この場合、内炎筒６の空気孔１１や透
孔１７に形成されていた火炎ｆ３は火炎ｆ２の上方では
形成されなくなる。従来からこのような状態では排ガス
特性、得にＣＯ／　ＣＯ２が急激に悪化していた。また
、燃焼装置を密閉状態の良い部屋で長時間使用した場合
、酸素濃度の減少に従って燃焼量も次第に減少するが、
上述のように火炎が燃焼室８内に下がると多量のＣｏが
発生する様な状態になっていた。以上の現象は、燃焼装
置内の排ガス測定を行った結果、内炎筒６内部の流れに
主原因があることが明らかになった。即ち、第５図にお
けるＡ−Ａ、線位置のＣＯ濃度は弱燃焼時（火炎がｆ２
となって燃焼室８内に下りている状態）、上端付近で１
ｏｏｏｐｐｍ以上もあった。このことから、内炎筒６内
部には波線−のように燃焼室８から内炎筒６内部へ漏出
する流れが存在することは明らかで、この高濃度のＣＯ
を含む混合ガスが通気孔１３や火炎ｆ２上方の空気孔１
１よシ直接大気中に放出されることにな９　、　ＣＯ／
　ＣＯ２特性は急激に悪化する。この現象は密閉状態の
良い部屋で長時間燃焼させ、酸素濃度が減少した場合（
酸欠状態）でも同様である。In normal strong combustion, as shown in Fig. 5, a secondary flame f1 is formed above the inner flame tube 6 and the outer flame tube 7, and the unburnt components that have risen in the combustion chamber 8 are completely combusted, which is good. It shows excellent exhaust gas characteristics. However, when the exposed height of the lamp wick 1 is lowered to reduce the amount of combustion, the flame descends into the combustion chamber 8 and is formed as shown at f2. In this case, the flame f3 that was formed in the air hole 11 and the through hole 17 of the inner flame cylinder 6 is no longer formed above the flame f2. Conventionally, under such conditions, exhaust gas characteristics, especially CO/CO2, have deteriorated rapidly. Also, if a combustion device is used for a long time in a well-sealed room, the amount of combustion will gradually decrease as the oxygen concentration decreases.
As mentioned above, when the flame descends into the combustion chamber 8, a large amount of Co is generated. As a result of measuring the exhaust gas inside the combustion device, it became clear that the main cause of the above phenomenon was the flow inside the inner flame cylinder 6. In other words, the CO concentration at the line A-A in Fig. 5 is at the time of weak combustion (when the flame is
(and descending into the combustion chamber 8), 1 near the top end
There were more than oooppm. From this, it is clear that there is a flow leaking from the combustion chamber 8 into the inner flame cylinder 6 as shown by the broken line inside the inner flame cylinder 6, and this high concentration of CO
The mixed gas containing
9, CO/
CO2 characteristics deteriorate rapidly. This phenomenon occurs when combustion is performed for a long time in a well-sealed room and the oxygen concentration decreases (
The same is true for oxygen-deficient conditions.

本発明はかかる従来の問題を解消するもので、弱燃焼時
や酸欠状態での排ガス特性の急激な悪化を防止すること
によシ、燃焼特性が良好で燃焼量調節幅が大きく、安全
かつ快適な燃焼装置を得ることを目的とする。The present invention solves these conventional problems by preventing rapid deterioration of exhaust gas characteristics during weak combustion or in oxygen-deficient conditions, resulting in good combustion characteristics, a wide range of combustion amount adjustment, and safe and The purpose is to obtain a comfortable combustion device.

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
炎筒内方に灯芯に対向する位置近傍から上方に伸び、内
炎筒との間に形成される制流域をその底面で遮蔽し、か
つ燃焼室と連通ずる連通部を形成する様に制流筒を複数
段設けるとともに上方の制流筒の下端に内方もしくは内
側下方に突出したガイド板を設けている。Means for Solving the Problems In order to solve the above-mentioned problems, the combustion device of the present invention has an inner flame tube extending upward from near a position facing the lamp wick inwardly and formed between the inner flame tube and the inner flame tube. Multiple stages of flow restriction tubes are provided so as to shield the flow control region with their bottom surfaces and form a communication section that communicates with the combustion chamber, and a guide plate is provided at the lower end of the upper flow restriction tube that protrudes inwardly or inwardly downward. ing.

作　　　用 本発明は、上記した構成によシ、制流域に未燃ガスを導
入し、この未燃ガスを制流筒上に供給される清浄な空気
によって混合しながら、内炎筒上端部から集中的に燃焼
室に供給し、燃焼を促進させる。また、制流筒を複数段
備えているので、火炎よシ上方の制流筒へ流入する燃焼
ガスは燃焼がかなシ進行した状態のガスとな、９．Ｃｏ
の多量の放出を防止することができる。また、上方の制
流筒下端に内方もしくは内側かほうに突出したガイド板
を設けているので、連通部よシ燃焼室内に十分な空気を
供給することができるので、燃焼室下方で十分な燃焼促
進を行うことができる。According to the above-described structure, the present invention introduces unburned gas into the flow control area, and mixes the unburned gas with clean air supplied onto the flow control cylinder while flowing it from the upper end of the inner flame cylinder. It is intensively supplied to the combustion chamber to promote combustion. In addition, since there are multiple stages of flow restriction tubes, the combustion gas flowing into the flow restriction tubes above the flame is gas in a state where combustion has progressed rapidly.9. Co
It is possible to prevent the release of large amounts of. In addition, a guide plate that protrudes inward or towards the inside is provided at the lower end of the upper restriction tube, so that sufficient air can be supplied into the combustion chamber through the communication part, so that sufficient air can be supplied from the lower part of the combustion chamber. Combustion can be promoted.

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。Example Embodiments of the present invention will be described below with reference to the accompanying drawings.

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を形成しておシ、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、ここで燃料の気化が行われる。９は外筒で
内炎筒６、外炎筒７、外筒９は内方よシ順次略同心国状
に配され、固定ビン１０によって一体化されている。１
４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よシ上方の外炎筒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。In FIG. 1, reference numeral 1 denotes a lamp wick, which is set between an inner wick tube 2 and an outer wick tube 3 so as to be vertically movable. The upper ends of the inner core tube 2 and the outer core tube 3 form an inner flame tray 4 and an outer flame tray 5, respectively, on which are placed an inner flame tube 6 and an outer flame tube 7. During combustion, the tip of the wick 1 is exposed in a combustion chamber 8 formed between an inner flame tube 6 and an outer flame tube 7, where the fuel 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 arranged in a substantially concentric manner in order from the inside, and are integrated by a fixing pin 10. 1
Reference numeral 4 indicates 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 red-hot part 16 is formed in the outer flame cylinder 7 above the constriction part 15, and a through hole 17 with a large opening is provided.

１Ｂはガラス等の透過性材料よりなる透過筒で、外炎筒
９上に載置されている。１９はトップフレームで赤熱部
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。２１は内炎筒６内方に設置された下制流筒で
灯芯１先端に対向する位置近傍から上方へのび、かつ内
炎筒６間に形成される王制流域２２をその低面で遮蔽す
るように設けられている。２３は下制流筒２１上方に設
定された上制流筒で、王制流域２４をその低面で遮蔽す
るように設けられている。２５は下制流筒２１と上制流
筒２３の間に一定の間隔を有するように設定された連通
部である。２６は上制流筒２３下端に内側下方に突出す
るように設けられたガイド板である。２７は上制流筒２
３と内炎筒天板１２間の通気部、２８は空気導入部であ
る。1B is a transmission 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 incandescent part 16 so as to cover the upper end of the air passage 20 between the incandescent part 16 and the transmission cylinder 18, and fixes the transmission cylinder 18. Reference numeral 21 denotes a lower flow tube installed inside the inner flame tube 6, which extends upward from the vicinity of the position facing the tip of the wick 1, and shields the royal flow region 22 formed between the inner flame tubes 6 with its lower surface. It is set up like this. Reference numeral 23 denotes an upper flow control tube set above the lower flow control tube 21, and is provided so as to shield the royal flow region 24 with its lower surface. Reference numeral 25 denotes a communication portion that is set to have a constant interval between the lower flow restriction cylinder 21 and the upper flow restriction cylinder 23. Reference numeral 26 denotes a guide plate provided at the lower end of the upper flow control tube 23 so as to protrude inwardly and downwardly. 27 is upper flow control cylinder 2
3 and the ventilation section between the inner flame tube top plate 12, and 28 is an air introduction section.

上記構成において、灯芯１に点火すると燃焼を開始し燃
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
シ熱ドラフトを生じ、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よシ燃
焼室８内に供給され燃焼が継続される。このときの内炎
筒６内部および燃焼室８内の燃焼ガスや空気の流れを第
２図にて説明する。内炎筒６内方から供給される空気は
下制流筒２１下方から灯芯１近傍に供給される白矢印（
ａｌと空気導入路２７を上昇する白矢印（ｂｌに分けら
れる。上昇した空気の一部は白矢印ｆｃ）の様に連通部
２５を通過し、燃焼室８へ供給される。さらに、内炎筒
６上方に供袷烙れた空気は白矢印ｔｄ）の様に空気孔１
１や通気孔１３から躬焼室８およびその上方へ供給され
る。また、一部は白矢印ｆｅｌの様に王制流域２４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。一方、空気漂白矢印（ａｌによって気化された燃
料は空気との混合ガスとなって主として黒矢印（ｆｌの
ように燃焼室８を上昇する。しかし、空気漂白矢印［ｃ
ｌおよび（ｄ）、ｆｅｌによって王制流域２２および王
制流域２４は負圧になるため、混合ガスの一部は黒矢印
［ｇｌ、（ｈｌの様に王制流域２２、上側流域２４内に
流入する。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 heat draft, and the air necessary for combustion is transferred to the inner flame tube 6 and the outer flame tube 7. The air is supplied into the combustion chamber 8 through the air hole 11 of the incandescent part 16 and the through hole 17 of the red-hot part 16, and combustion continues. The flow of combustion gas and air inside the inner flame tube 6 and the combustion chamber 8 at this time will be explained with reference to FIG. 2. The air supplied from inside the inner flame tube 6 is supplied from below the lower flow tube 21 to the vicinity of the lamp wick 1 as indicated by the white arrow (
A part of the air that has risen passes through the communication portion 25 as indicated by the white arrow fc, and is supplied to the combustion chamber 8. Furthermore, the air heated above the inner flame cylinder 6 is transferred to the air hole 1 as shown by the white arrow td).
1 and ventilation holes 13 to the baking chamber 8 and above. A part of the air also descends into the royal flow area 24 as indicated by the white arrow fel, and is also supplied to the combustion chamber 8 from the air holes 11 located relatively below. On the other hand, the fuel vaporized by the air bleaching arrow (al) becomes a mixed gas with air and rises in the combustion chamber 8 as shown by the black arrow (fl). However, the air bleaching arrow [c
Since the royal basin 22 and the royal basin 24 become negative pressure due to l and (d) and fel, a part of the mixed gas flows into the royal basin 22 and the upper basin 24 as shown by the black arrows [gl, (hl).

したがって王制流域２２、王制流域２４には未燃ガスが
充満する。この未燃ガスは連通部２５、内炎筒上端部で
空気漂白矢印（ｃ）および空気漂白矢印ｆｄ＋、（ａｔ
と混合され、黒矢印（１）、（」）の様に再び燃焼室８
へ供給される。したがって強撚焼時には内炎筒６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ｆｃｌ付近で効率よく燃焼さ
せ、嘔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ｆ、で燃焼される。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、火炎ｆ３　となる。Therefore, the monarch basin 22 and the monarch basin 24 are filled with unburned gas. This unburned gas flows through the communication portion 25 and the upper end of the inner flame cylinder with air bleaching arrows (c) and air bleaching arrows fd+, (at
is mixed with the combustion chamber 8 again as shown by the black arrows (1) and ('').
supplied to Therefore, during strong twist firing, unburned gas and air are supplied from near the top end of the inner flame tube 6 to the top end of the combustion chamber 8 in a well-mixed state, resulting in efficient combustion near the area fcl. The unburned gas is combusted by the flame f formed above. Next, when the exposed height of the lamp wick 1 is lowered to reduce the amount of combustion, the flame gradually descends into the combustion chamber 8 and becomes a flame f3.

この場合の流れも強撚焼時と同様であるが、気化ガスは
大幅に減少しているので、王制流域２４へ流入する未燃
ガス量も減少する。従って空気漂白矢印（ｅ）との混合
領域は下方へ下がり、領域（Ｄｌ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ｆ３で燃焼を完
結させる。この場合、王制流域２４に流入した未燃ガス
は、空気白矢印（ｄｌ、ｔｅｌによってほとんどが燃焼
室８内に供給され、火炎ｆ３で燃焼されるので、火炎ｆ
３よシ上方に対向する王制流域２４では未燃ガス成分は
ほとんどなく、火炎ｆ、よシ上方の空気孔１１や通気孔
１３から排出される空気は清浄で、排ガス特性（ＣＯ／
　ＣＯ２）は悪化しない。ちなみに、通気部２７付近の
ＣＯ濃度は３０〜５０ｐｐｍ程度で、従来例に比べて大
幅に減少していることがわかった。しかし、ざらに燃焼
量を少なくして火炎がさらに下降すると、内炎筒６上方
の温度が下がるたべ、空気漂白矢印ｔｅｌによって上側
流域２４内に十分に空気が供給されるにもかかわらず燃
焼が促進されないため火炎ｆ、の上方から排出される空
気には次第にｃｏ酸成分多く含まれる様になシ、排ガス
特性は徐々に悪化する傾向を示す。しかし、さらに燃焼
量を少なくし火炎が上制流筒２３下端よシ下方にｆｍの
ように形成されると、火炎１ｍ近傍は温度も高く、また
上制流１２３下端にガイド板２６が設けられているため
に連通部２５から空気流白矢印（ｃｌによって十分空気
が供給されるので領域ＩＥＩ付近で燃焼が促進される。The flow in this case is the same as in the case of strong twist firing, but since the amount of vaporized gas is significantly reduced, the amount of unburned gas flowing into the royal flow region 24 is also reduced. Therefore, the mixing area with the air bleaching arrow (e) moves downward, and the area (near Dl) becomes a good mixing area, where a flame holding is formed and the wall surface of the inner flame cylinder 6 becomes red-hot, and furthermore, the area above it is formed. The combustion is completed with the flame f3.In this case, most of the unburned gas that has flowed into the monarch region 24 is supplied into the combustion chamber 8 by the air white arrows (dl, tel) and is combusted with the flame f3. flame f
There are almost no unburned gas components in the monarch basin 24 facing above 3, and the air discharged from the air holes 11 and vents 13 above the flame f is clean and has excellent exhaust gas characteristics (CO/
CO2) will not deteriorate. Incidentally, it was found that the CO concentration near the ventilation section 27 was about 30 to 50 ppm, which was significantly reduced compared to the conventional example. However, if the combustion amount is drastically reduced and the flame descends further, the temperature above the inner flame tube 6 will drop, and combustion will continue even though sufficient air is supplied into the upper basin 24 by the air bleaching arrow tel. Since the flame is not promoted, the air discharged from above the flame f gradually contains more cobalt acid components, and the exhaust gas characteristics tend to gradually deteriorate. However, if the combustion amount is further reduced and the flame is formed below the lower end of the upper flow restrictor 23 as shown in fm, the temperature near the flame 1 m will be high, and the guide plate 26 will be provided at the lower end of the upper flow restrictor 123. Since sufficient air is supplied from the communication portion 25 by the air flow white arrow (cl), combustion is promoted near the region IEI.

この場合、王制流域２４へも排ガスは流入するが、この
排ガス成分は、空気流白矢印１ｃｌによって供給さされ
る空気および火炎ｆｒｎで燃焼がかなり進んだ状態にあ
シ、排ガス成分中のＣｏ比率はそれほど高くならず、し
たがって排ガス特性は悪化しない。In this case, the exhaust gas also flows into the monarch basin 24, but the combustion of this exhaust gas component has progressed considerably due to the air supplied by the air flow white arrow 1cl and the flame frn, and the Co ratio in the exhaust gas component is It is not so high that the exhaust gas characteristics are not deteriorated.

以上、通常の燃焼において灯芯１の露出高さを低くして
燃焼量を少なくしていった場合について説明したが、点
火時においてもガイド板２６°によって連通部２６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
燃焼促進が行われ、ｃｏ、臭気の発生は少ない。１丸、
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。Above, we have explained the case where the exposed height of the lamp wick 1 is lowered to reduce the amount of combustion during normal combustion, but even during ignition, the guide plate 26 degrees allows for efficient movement from the communication part 26 to the lower part of the combustion chamber 8. Since air is supplied, combustion is promoted quickly and little cocoon and odor are generated. 1 circle,
A similar effect can be obtained when burning for a long time in a well-sealed room.

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
を少なくしていった場合とほぼ同様な現象亦見られるが
、ガイド板２６によって連通部２５から燃焼室８内に供
給される空気によって燃焼が促進されるため酸欠特性も
良好になる。That is, under oxygen-deficient conditions, the amount of combustion decreases as the oxygen concentration decreases, and a phenomenon similar to that observed when the exposed height of the lamp wick 1 is lowered to reduce the amount of combustion is observed. Since combustion is promoted by the air supplied into the combustion chamber 8 from the communication portion 25 by the guide plate 26, oxygen deficiency characteristics are also improved.

第３図は従来例と本実施例について、燃焼量に対するＣ
　Ｏ／　ＣＯ２特性を、また第４図は弱燃焼時に酸欠特
性を測定した結果である。なお、酸欠特性は初期燃焼置
駒１２５０Ｋｃａｌ／ｈｒにて測定した。本実施例はＣ
Ｏ／　ＣＯ２特性、酸欠特性とも大幅に改良されておシ
、本発明の効果が明確である。Figure 3 shows C vs. combustion amount for the conventional example and this example.
Figure 4 shows the results of measuring the O/CO2 characteristics and the oxygen deficiency characteristics during weak combustion. Note that the oxygen deficiency characteristics were measured at an initial combustion setting of 1250 Kcal/hr. This example is C
Both O/CO2 characteristics and oxygen deficiency characteristics were significantly improved, and the effects of the present invention are clear.

以上の実施例では制流筒が２段の場合について述べたが
、３段以上の構成をとっても同様の効果が得られる。Although the above embodiments have been described with reference to the case where there are two stages of flow restricting cylinders, the same effect can be obtained even if a configuration with three or more stages is adopted.

発明の効果 以上のように、本発明の燃焼装置によれば、次の効果が
え、られる〇− ■　内炎筒内方に制流筒を設けているため、空気入路を
上昇する空気流によって制流域内に高濃度のｃｏを含む
未燃ガスが流入するが、通気部および連通部に供給され
る空気によって混合され、燃焼量に応じて内炎筒のある
高さ位置で良好な混合状態を形成し、燃焼を促進させる
ことができる。Effects of the Invention As described above, according to the combustion apparatus of the present invention, the following effects can be achieved〇- ■ Since the flow control tube is provided inside the inner flame tube, the air flow rising through the air inlet passage can be reduced. Unburned gas containing a high concentration of co2 flows into the control area, but it is mixed by the air supplied to the ventilation part and the communication part, and good mixing is achieved at a certain height of the inner flame cylinder depending on the amount of combustion. conditions can be formed and combustion can be promoted.

■　通気部および連通部から供給される空気によって未
燃ガスの内炎筒内部へ漏出する流れは遮蔽される。この
遮蔽効果により、火炎より上方の制流域内および空気導
入路は未燃ガスをほとんど含んでおらず、火炎上方の内
炎筒空気孔や通気孔から高濃度のｃｏが直接大気中に放
出されることはない。■ The flow of unburned gas leaking into the inner flame cylinder is blocked by the air supplied from the ventilation section and the communication section. Due to this shielding effect, the control area above the flame and the air introduction path contain almost no unburned gas, and high-concentration co2 is directly released into the atmosphere from the inner flame tube air vents and vents above the flame. It never happens.

Ｇ　制流筒を複数段に設け、かつ上方の制流筒下端に内
方もしくは内側下方に突出したガイド板を設けているの
で、火炎が上段の制流筒以下に下がると、その直下の連
通部から効率良く供給される空気によって再び燃焼は促
進され、上方の制流域へ流入する排ガスは燃焼のかなシ
進んだＣｏ比率の低いガスとなるため、この燃焼ガスが
放出されても燃焼特性の悪化につながらない。G: Multiple flow control tubes are provided in multiple stages, and a guide plate is provided at the lower end of the upper flow control tube that protrudes inwardly or inwardly downward, so when the flame drops below the upper flow control tube, the communication directly below it will be interrupted. Combustion is promoted again by the air efficiently supplied from the upper control area, and the exhaust gas flowing into the upper control area becomes a gas with a low Co ratio that has undergone combustion, so even if this combustion gas is released, the combustion characteristics will not change. Does not lead to deterioration.

＠　上方の制流筒下端に内方もしくは内側下方に突出し
たガイド板を設けているので、連通部から燃焼室下方に
効率よく空気を供給することができる。@ Since a guide plate is provided at the lower end of the upper flow restriction tube that protrudes inwardly or downwardly, air can be efficiently supplied from the communication portion to the lower part of the combustion chamber.

以上の効果によシ、弱燃焼時や酸欠状態での排ガス特性
の急激な悪化を防止するとともに点火特性も良好となシ
、燃焼特性が良好で燃焼量調節幅が大きく、安全かつ快
適な燃焼装置を得ることができる。As a result of the above effects, it prevents the rapid deterioration of exhaust gas characteristics during weak combustion or in oxygen-deficient conditions, and also has good ignition characteristics.It also has good combustion characteristics and a wide range of combustion amount adjustment, making it safe and comfortable. A combustion device can be obtained.

【図面の簡単な説明】[Brief explanation of the drawing]

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図は同燃焼装置内の流れの断面図、第３図、第
４図は同装置の効果を説明するための特性図、第５図は
従来の燃焼装置の要部断面図である。 １・・・・・・灯芯、６・・・・・・内炎筒、７・川・
・外炎筒、８・・・・・・燃焼室、９・・・・・・外炎
筒、１１・・・・・・空気孔、２１・・・・・・下制流
筒、２２・川・・王制流域、２３・・・・・・上制流筒
、２４・・・・・・王制流域、２５・・・・・・通気部
、２６・・・・・・ガイ　ド板。 代理人の氏名　弁理士　中　尾　敏　男　ほか１名！−
訂芯 第２図 ＊３１！１ 第４図　　Ｓ泡量　（ＫｃＪ／ｈわ） ！内０２１浪　（７−＞ 第５図Fig. 1 is a sectional view of essential parts of a combustion device according to an embodiment of the present invention, Fig. 2 is a sectional view of the flow inside the combustion device, and Figs. 3 and 4 are diagrams for explaining the effects of the device. The characteristic diagram, FIG. 5, is a sectional view of a main part of a conventional combustion device. 1...Light wick, 6...Inner flame tube, 7. River.
・Outer flame tube, 8... Combustion chamber, 9... Outer flame tube, 11... Air hole, 21... Lower flow tube, 22. River... Royal basin, 23... Upper flow tube, 24... Royal basin, 25... Ventilation section, 26... Guide plate. Name of agent: Patent attorney Toshio Nakao and 1 other person! −
Diagram 2 *31!1 Diagram 4 S bubble volume (KcJ/hwa)! 021 waves (7-> Figure 5)

Claims (1)

【特許請求の範囲】[Claims] 多数の空気孔を有する外炎筒と、この外炎筒外方に配さ
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
筒内方に配され、前記灯芯に対向する位置近傍から上方
に伸び、前記内炎筒との間に形成される制流域をその低
面で遮蔽するとともに、上記燃焼室と連通する連通部を
形成する様に設けられた複数段の制流筒と、上記複数段
に分割した制流筒のうち上方の制流筒の最下段に内方も
しくは内側下方に突出したガイド板を備えた燃焼装置。an outer flame tube having a large number of air holes; an inner flame tube having a large number of air holes disposed outside the outer flame tube; an outer flame tube located outside the outer flame tube; A lamp wick is vertically movable at the lower end of the combustion chamber formed between the inner flame cylinders, and a lamp wick is disposed inside the inner flame cylinder and extends upward from near a position facing the lamp wick, and is connected to the inner flame cylinder. A plurality of stages of flow restriction tubes are provided so as to shield a flow control region formed between them with their lower surfaces and to form a communication section communicating with the combustion chamber, and a flow restriction tube divided into multiple stages is provided. A combustion device that is equipped with a guide plate that protrudes inwardly or downwardly at the bottom of the upper flow control tube.