JPS58219328A - Burner of liquid fuel - Google Patents

Abstract

PURPOSE:To improve safety in burning at the time of flame extinction by equalizing and shortening fire extinction period, by a method wherein holes are provided on a part of an inner cylinder or a wick guiding cylinder and a blockaded space is provided on the opposite side of a wick. CONSTITUTION:A plurality of holes 16 is provided on the upper part of an inner cylinder 4 and a space 18 blockaded by a partition cylinder 17 is formed on the opposide of a wick. With this, a fire extinction period extending to misfire from fire extinction action can be shortened by stabilizing it, as evaporation of fuel is quickened and reduced and a supply air quantity up to ignition can be set to the minimum. Thereby, a generating quantity of unburnt gas at the time of fire extinction becomes little and a fuel odor at the time of flame extinction is reduced.

Description

【発明の詳細な説明】 本発明は、家庭における暖房、調理等に用いられる液体
燃料燃焼装置に関し、消火を速やかに行わぜることによ
り、消火時間の短縮を図るものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a liquid fuel combustion device used for home heating, cooking, etc., and aims to shorten the time required to extinguish the fire by quickly extinguishing the fire.

石油ストーブ等に用いた灯芯式の液体燃料燃焼装置は、
騒音の発生が低く、構成が簡単で、操作２　ページ が容易である反面、消火時、消火動作から炎が消えるま
での時間が長く安全性が十分でなかった。The wick-type liquid fuel combustion device used in kerosene stoves, etc.
Although it produces low noise, has a simple configuration, and is easy to operate, it does not provide sufficient safety because it takes a long time to extinguish the flame after extinguishing the fire.

特に機器の転倒等緊急時、自動消火感知が作動した後、
消火するまでの時間が約１ｏ秒程要し、この時間が条件
により変動した。消火時間が長くかかると、液体燃料燃
焼装置の加熱による損傷、消火時臭気の多量発生のみな
らず、液体燃料燃焼装置への炎の立炎、燃料タンクへの
異常加熱等火災曜 の発生する危険があった。Especially in the event of an emergency such as equipment falling, after the automatic fire extinguishing detection is activated,
It took about 10 seconds to extinguish the fire, and this time varied depending on the conditions. If it takes a long time to extinguish the fire, not only will the liquid fuel combustion equipment be damaged by heating and a large amount of odor will be generated during extinguishing, but there will also be dangers such as flames spreading to the liquid fuel combustion equipment and abnormal heating of the fuel tank. was there.

すなわち、灯芯式の液体燃料燃焼装置の消火動作は、多
孔を有する内、外炎筒間の燃焼室に先端が位置した灯芯
を１円筒と芯案内筒の間に降下させ、灯芯への熱の供給
を激減させるとともに、空気の供給を無くし酸欠失火さ
せるのである。灯芯降下後も灯芯」二部の円筒と芯案内
筒の間には空気が存在し、この空気が無くなるまでは炎
が消えなかった。Ｊｈに失火直前の炎は、灯芯の一部の
みに部分的に保炎した状態となり、その火炎の直上方向
に熱ドラフトによる」二重気流が生じ、他方火炎の無い
１芯上方では逆に空気が流下する現象を示し、３ベーゾ 炎が長時間消えなかった。そこで、灯芯の降下と同時に
燃焼室と灯芯全遮断するダンパを設ける方法や、内筒上
部に穴を設ける方法が考えられた。In other words, the fire extinguishing operation of a wick-type liquid fuel combustion device involves lowering a wick with its tip located in the combustion chamber between the inner and outer flame tubes, which has porous holes, between one cylinder and the wick guide tube, and discharging heat to the wick. This drastically reduces the supply and eliminates the air supply, causing a lack of oxygen and a misfire. Even after the wick was lowered, there was still air between the cylinder of the wick's second part and the wick guide tube, and the flame did not go out until this air disappeared. At Jh, the flame just before a misfire becomes partially flame-holding only in a part of the wick, and a double air current is created directly above the flame due to thermal draft, whereas above the single wick where there is no flame, air It showed a phenomenon of flowing down, and the 3 beso flame did not disappear for a long time. Therefore, methods of installing a damper that completely shuts off the combustion chamber and the wick at the same time as the wick is lowered, and a method of providing a hole in the upper part of the inner cylinder were considered.

ダンパによる空気遮断は、その後蒸発する燃料ガスが燃
焼しないため臭気が多量に生じた。寸だ円筒上部に穴を
全周に設けることは、灯芯降下時その穴に保炎燃焼させ
、前述の灯芯の一部に火炎が保炎することによる空気の
流下を防止するとともに、灯芯降下後発生する燃料をこ
の保炎燃焼で燃焼させ、臭気、未燃ガスの発生を防止す
るものであった。しかし、内筒と芯案内筒の間隙と外部
が穴によシ連通しているため、燃焼ガス濃度が一定以下
になり、穴における保炎がリフト失火する丑で燃焼が持
続する。そのため、燃料の蒸発能力の低下した灯芯や、
燃焼室への露出高さが大きい灯芯を用いた時は、燃焼中
に保有する熱量が多いため、消火時降下後の燃料の蒸発
量が多く、長時間消火しなかった。また転倒時は、灯芯
から流れ出た燃料が穴から入る空気により燃焼し、消火
が長くかかることがあった。When the air was shut off by the damper, the fuel gas that evaporated afterwards was not combusted, resulting in a large amount of odor. Providing holes all around the top of the cylinder allows for flame-holding combustion in the hole when the wick falls, and prevents air from flowing down due to the flame holding in a part of the wick, as well as preventing air from flowing down after the wick falls. The generated fuel was combusted using this flame-holding combustion to prevent the generation of odors and unburned gas. However, since the gap between the inner cylinder and the core guide cylinder and the outside communicate with each other through the hole, the combustion gas concentration becomes below a certain level, and combustion continues as the flame holding in the hole lifts and misfires. As a result, wicks with reduced fuel evaporation ability,
When a lamp wick with a large exposure height to the combustion chamber was used, it held a large amount of heat during combustion, so the amount of fuel that evaporated after falling during extinguishing was large, and the fire did not extinguish for a long time. In addition, when a lamp falls over, the fuel that flows out of the wick is combusted by the air that enters through the hole, and it takes a long time to extinguish the fire.

本発明は、内筒捷たは芯案内筒の一部に穴を設け、その
灯芯とは反対側に、閉塞した空間を設けることにより、
消火時、一定時間保炎燃焼を行わせ、その後空気の供給
を完全に遮断し、消火時間全均一かつ短かぐし、消火時
の燃焼安全性を改善できるものである。以下本発明の一
実施例を図面を用いて説明する。The present invention provides a hole in a part of the inner tube or wick guide tube, and by providing a closed space on the opposite side of the wick,
When extinguishing a fire, flame-holding combustion is carried out for a certain period of time, and then the air supply is completely cut off, making it possible to have a uniform and short extinguishing time and improve combustion safety during extinguishing. An embodiment of the present invention will be described below with reference to the drawings.

第１図において、円筒状の灯芯１は、円筒状の泡取付金
具２外面に数句けられ、下部を燃料３の中に沈設し、内
筒４と芯案内筒６により構成される間隙６を上下に動く
ように（操作メカは図示せす）取付けである。間隙６の
上部に、内炎筒７、外炎筒８間による一次燃焼室９が形
成され、さらに前記−次燃焼室９の」二部に燃焼筒１ｏ
で包１れた二次燃焼室１１を設けである。燃焼用空気の
流入路は芯案内筒６十部の多数の孔１２、内炎筒７、外
炎筒８の多数の孔１３よりなる。１だ、外炎筒８の外側
に間隙を隔てて外筒１４が設けられ、燃焼筒１０の外側
に間隙を隔てて透過筒１５がそれぞれ設けられている。In FIG. 1, a cylindrical lamp wick 1 is provided with several holes on the outer surface of a cylindrical foam fitting 2, with its lower part sunk into fuel 3, and a gap 6 formed by an inner tube 4 and a wick guide tube 6. It is installed so that it can move up and down (the operating mechanism is shown). A primary combustion chamber 9 is formed between the inner flame tube 7 and the outer flame tube 8 at the upper part of the gap 6, and a combustion tube 1o is formed in the second part of the secondary combustion chamber 9.
A secondary combustion chamber 11 is provided. The combustion air inflow path consists of a large number of holes 12 in the core guide tube 60, and a large number of holes 13 in the inner flame tube 7 and the outer flame tube 8. 1, an outer cylinder 14 is provided on the outside of the outer flame cylinder 8 with a gap in between, and a transmission cylinder 15 is provided on the outside of the combustion cylinder 10 with a gap in between.

内筒４の土部に複数の穴１６５ページ を設け、その灯芯１とは反対側に仕切筒１７により閉塞
された空間１８が形成している。A plurality of holes 165 are provided in the soil part of the inner tube 4, and a space 18 closed by a partition tube 17 is formed on the opposite side of the lamp wick 1.

次に動作について説明する。灯芯１を上昇させ、−次燃
焼室９にその先端を露出させる。燃料２は毛細管現象に
より灯芯１を通りその先端に吸い上げられる。点火ヒー
タ（図示せず）に通電すると燃料を十分浸み込んだ灯芯
１上端で着火が行われ、火回り燃１跣全開始する。燃焼
による高温ガスにより、−次燃焼室９から二次燃焼室１
１中に熱ドラフトによる上昇気流を生じ、−次燃焼室９
へ孔１２、孔１３から空気が流入する。そこで孔１３の
おのおので保炎燃焼し、その燃焼による輻射熱と孔１２
から流入する空気流れにまり灯芯１から燃料の蒸発がお
こなわれる。−次燃焼室９から二次燃焼室１１へ流れる
燃料、空気の混合ガスと、燃焼筒１ｏから流入する空気
が流入し、燃焼筒１０に火炎面を形成し、燃焼熱により
燃焼筒１゜は赤熱する。そして透過筒１５を通（〜で、
燃焼筒１０の赤熱による熱放射を外部へ放射する。この
状態で火炎は安定１−１良好な燃焼が持続する。次６ペ
ージ に消火時の動作について第１図の部分拡大図全第２図に
示しｎ；１．明する。消火は、灯芯１を操作メカ（図示
中ず）により下降させることにより行う。Next, the operation will be explained. The lamp wick 1 is raised to expose its tip to the secondary combustion chamber 9. The fuel 2 passes through the wick 1 and is sucked up to its tip by capillary action. When the ignition heater (not shown) is energized, ignition occurs at the upper end of the lamp wick 1, which is sufficiently soaked with fuel, and the flame starts to burn completely. The high temperature gas caused by combustion causes the secondary combustion chamber 1 to flow from the secondary combustion chamber 9.
An updraft is generated in the combustion chamber 1 due to a thermal draft, and the -next combustion chamber 9
Air flows into the holes 12 and 13. Therefore, flame-holding combustion occurs in each of the holes 13, and the radiant heat from the combustion and the holes 12
The fuel is evaporated from the wick 1 by being caught in the air flow flowing in from the lamp wick. - The mixed gas of fuel and air flowing from the secondary combustion chamber 9 to the secondary combustion chamber 11 and the air flowing from the combustion tube 1o flow in, form a flame front in the combustion tube 10, and the combustion tube 1 degree increases due to the heat of combustion. Become red hot. Then, through the transmission tube 15 (with...
Heat radiation due to the red heat of the combustion tube 10 is radiated to the outside. In this state, the flame is stable 1-1 and good combustion continues. On the next page 6, the operation during extinguishing is shown in Figure 2, which is a partial enlarged view of Figure 1.n;1. I will clarify. Extinguishing the fire is carried out by lowering the lamp wick 1 using an operating mechanism (not shown).

灯芯１←１下降により内筒４と芯案内筒により構成され
る間隙６の下方に位置するため、灯芯１が加熱されなく
なり燃料の蒸発は激減する。そのため孔１３における気
孔燃焼はリフト失火し、火炎は内筒４に設けた穴１６に
移り、間隙６と空間１８の空気と灯芯からの蒸発燃料に
より気孔燃焼を行う。穴１６が無い場合は、灯芯１の下
降とともに灯芯１の先Δ１．）でローソク状に保炎燃焼
を行いこの燃焼に」：る熱により燃料の蒸発が持続しま
た燃焼量が小さくなると灯芯１の一部分のみに火炎を形
成する様になり、火炎部の熱ドリフトによる上昇流れの
ため、火炎の無い灯芯１の上部では空気が降下し、火炎
に酸素が供給され、失火丑での時間が長くかかった。し
かし、内筒４に設けた穴１６で気孔燃焼するため、灯芯
１での火炎を作ることなく燃料の蒸発量の減少全さらに
促進するとともに、穴１６で気孔燃焼し、失火すること
は、間隙７ページ ６の全周に均一な燃焼熱ドラフトヲ生じるため空気の対
流を生じない。このため新しく空気が供給されることが
なく間隙と空間１８の空気量のみが燃焼に関与し失火す
る。このため灯芯１降下後の燃料の蒸発量も少なく、燃
焼に関与する空気量も最小に限定されるため短かい消火
時間となる。１だ気孔燃焼に開力する空気全仕切筒１７
［より外部と遮断することにより空気量全限定し、一定
時間以」二気孔燃焼を行うのを防止でき、一部に火炎が
残る様な現象による消火時間の延長が生じない。As the wick 1 is lowered by 1, it is located below the gap 6 formed by the inner tube 4 and the wick guide tube, so the wick 1 is not heated and the evaporation of fuel is drastically reduced. Therefore, the stomatal combustion in the hole 13 causes a lift misfire, and the flame moves to the hole 16 provided in the inner cylinder 4, where stomatal combustion is performed by the air in the gap 6 and the space 18 and the evaporated fuel from the lamp wick. If there is no hole 16, as the wick 1 descends, the tip of the wick 1 Δ1. ) to perform flame-holding combustion in a candle-like manner.As the heat continues to evaporate the fuel and the amount of combustion decreases, the flame will form only in a portion of the wick 1. Due to the upward flow, the air descended at the top of the wick 1 where there was no flame, supplying oxygen to the flame and increasing the time for misfires. However, since stomatal combustion occurs in the holes 16 provided in the inner cylinder 4, the reduction in the amount of fuel evaporation is further promoted without creating a flame in the lamp wick 1, and stomatal combustion occurs in the holes 16, causing a misfire. Since a uniform combustion heat draft is generated all around the page 6, no air convection occurs. Therefore, no new air is supplied, and only the amount of air in the gap and space 18 participates in combustion, resulting in misfire. Therefore, the amount of fuel evaporated after the wick 1 is lowered is small, and the amount of air involved in combustion is limited to a minimum, resulting in a short extinguishing time. A full air partition tube 17 that opens the air to single-pore combustion.
[By further isolating it from the outside, the amount of air is completely limited and two-hole combustion can be prevented for a certain period of time, and the extinguishing time will not be extended due to the phenomenon where flame remains in a part.

他方、転倒時、逆風時等、穴１６が外部と連通している
と、燃料の流出や、空気の流れにより火炎が消火しない
ことがあるが、仕切筒１ｏにより遮断することにより、
穴１６から燃料、空気の流出が無く確実に早く消火でき
るものである。また穴１６を上下に複数個設けることに
より、穴１６での保炎燃焼時、下部の穴１６々＼ら燃焼
ガス（Ｃｏ２゜Ｈ２Ｏ，０２）が流入することにより安
定して上部の穴１６がら空気を一定時間流出し燃焼が安
定し消火時間の安定性、均一性が向上する。On the other hand, if the hole 16 is in communication with the outside, such as during a fall or a headwind, the flame may not be extinguished due to fuel leakage or air flow, but by blocking it with the partition tube 1o,
There is no leakage of fuel or air from the hole 16, and the fire can be extinguished quickly. In addition, by providing a plurality of holes 16 above and below, during flame-holding combustion in the holes 16, the combustion gas (Co2°H2O, 02) flows from the lower holes 16, stably burning through the upper holes 16. Air flows out for a certain period of time to stabilize combustion and improve the stability and uniformity of extinguishing time.

以」二の様に本発明によると、消火時、穴で一定時間保
炎燃焼を行うことにより、燃料の蒸発を極めて速く減少
させるとともに、失火に至る供給空気量を最小に設定で
、きるため、消火動作から失火に至る消火時間が安定し
て短かくできる。また、これにより消火時の未燃ガスの
発生量が少なくなり消火時の臭気全低減できるという快
適性と安全性金高めるものとなる。As described above, according to the present invention, when extinguishing a fire, by performing flame-holding combustion in the hole for a certain period of time, fuel evaporation can be extremely rapidly reduced, and the amount of supplied air that can lead to a misfire can be set to a minimum. , the extinguishing time from extinguishing action to misfire can be stably shortened. In addition, this reduces the amount of unburned gas generated when extinguishing a fire, thereby completely reducing odor during extinguishing, which improves comfort and safety.

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

１・・・・・灯芯、４・・・・・・内筒、５・・・・・
・芯案内筒、６・・・・・間隙、１６・・・・・・穴、
１７・・・・・・仕切筒、１８・・・・・空間。 代理人の氏名　弁理士　中　尾　敏　男　ほか１基筒　
１　図 第２図1...Light wick, 4...Inner cylinder, 5...
・Core guide tube, 6...gap, 16...hole,
17... Partition tube, 18... Space. Name of agent: Patent attorney Toshio Nakao and 1 other person
1 Figure 2

Claims (2)

【特許請求の範囲】[Claims] （１）多孔を有する内炎筒と外炎筒のそれぞれの下方に
内筒と芯案内筒を設け、この円筒と芯案内筒の間隙に上
下可動々灯芯を設けるとともに、前記内筒または芯案内
筒の少′くとも一部に穴を設け、その灯芯とは反対側に
、閉塞した空間を設けだ液体燃料燃焼装置。 ■(1) An inner cylinder and a wick guide tube are provided below each of the inner and outer flame tubes having porous holes, and a vertically movable wick is provided in the gap between the cylinder and the wick guide tube, and the inner tube or the wick guide A liquid fuel combustion device in which a hole is provided in at least a portion of the tube, and a closed space is provided on the opposite side of the wick. ■ （２）内筒または芯案内筒の少くとも一部に設けた穴を
」二部に複数個設けた特許請求の範囲第１項記載の液体
燃料燃焼装置。(2) The liquid fuel combustion device according to claim 1, wherein a plurality of holes are provided in at least a part of the inner cylinder or the core guide cylinder.