JPS6125962B2 - - Google Patents

Description

【発明の詳細な説明】 この発明は、燃焼中の石油燃焼器を芯下げ操作
のみによつて短時間に消火させることができる消
火装置に係るものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a fire extinguishing system capable of extinguishing a burning oil combustor in a short time by simply lowering the wick.

一般に燃焼中の石油燃焼器を芯収容筒内に没入
すれば石油の気化ガスの発生が少なくなるにした
がつて100〜250秒がかつて徐々に炎を小さくして
消火に至るものである。そしてこの方法は発生し
た気化ガスを燃焼させながら消火に至るから消火
時の悪臭の発生が少く優れた方法といえる。しか
しながら、地震時の異常時には数秒ないしおそく
とも10秒位の短時間で消火することが望ましく、
何らかの構造を取入れる必要性が生まれる。 Generally, when a burning oil combustor is immersed in a wick housing cylinder, it takes 100 to 250 seconds to gradually reduce the flame and extinguish the flame as the amount of petroleum gas produced decreases. Since this method extinguishes the fire while burning the vaporized gas generated, it can be said to be an excellent method as it generates little odor when extinguishing the fire. However, in the event of an abnormality during an earthquake, it is desirable to extinguish the fire within a short period of time, from several seconds to at least 10 seconds.
There is a need to introduce some kind of structure.

従来この種の目的の為に二つのシステムが知ら
れており、両者が各々単独で、または組合せによ
つて芯下げと連動する消火装置を構成している。
この内の一方法は芯収容筒に外気に連らなる小孔
もしくはスリツトによる開口を設け、燃焼筒のド
ラフトと芯下げによつて芯収容筒間隙に負圧部を
作り、芯下げと同時に多量の空気を、開口から供
給し、燃焼炎を吹き消し、石油ガスを燃焼不可状
態まで薄めて消火するシステムである。また他の
方法は芯収容筒に隣接して石油ガスと空気とが適
当に混合ガスを作る石油ガス室を作り、該石油ガ
ス室に連通する芯収容筒の開口から芯下げ時、石
油ガス室に引火せしめ爆燃時の燃焼ガスを逆に開
口から噴出させ吹き消すものである。 Two systems are known in the art for this type of purpose, both of which, either alone or in combination, constitute a fire extinguishing system in conjunction with core lowering.
One of these methods is to provide a small hole or slit opening in the wick storage cylinder that communicates with the outside air, create a negative pressure area in the gap between the wick storage cylinders by drafting the combustion cylinder and lowering the wick, and simultaneously lowering the wick and releasing a large amount of air. This system supplies air from the opening, blows out the combustion flame, and dilutes the petroleum gas to the point where it cannot be combustible, thereby extinguishing the fire. Another method is to create an oil and gas chamber adjacent to the core storage tube in which oil gas and air create an appropriate mixture of gas, and when lowering the core from the opening of the core storage tube that communicates with the oil and gas chamber, the oil and gas chamber The combustion gas from the deflagration is ejected from the opening to blow it out.

しかしながら、このシステム共に完全なもので
なく欠点を内在させており、前者にあつては消火
時間を瞬間消火に近づける為には開口を芯収容筒
全周に配置して、空気を均一に供給する必要があ
り、開口の全面積が大きくなりやすく通常の燃焼
時に於て芯収容筒の開口から石油ガスが洩れ出て
直接引火したり、逆に多量の空気が開口から流入
して燃焼点が低く芯収容筒に近くなり、芯収容筒
や油タンクを異常加熱する恐れがある。また後者
の方法では常に爆燃可能状態の石油ガスを石油ガ
ス室に形成しておくことがむつかしく石油ガスが
高濃度でもし爆燃しなかつた時には短時間で消火
できる望みは全くなくなるものである。 However, both of these systems are not perfect and have inherent drawbacks; in the case of the former, in order to bring the extinguishing time closer to instantaneous extinguishing, openings are placed around the entire periphery of the wick storage cylinder to supply air uniformly. Because of this, the total area of the opening tends to be large, which can cause petroleum gas to leak from the opening in the wick storage cylinder and cause direct ignition during normal combustion, or conversely, a large amount of air can flow in through the opening, lowering the combustion point. If it comes close to the core housing cylinder, there is a risk of abnormal heating of the core housing cylinder and oil tank. In addition, in the latter method, it is difficult to keep petroleum gas in a state capable of deflagration in the petroleum gas chamber at all times, and if the petroleum gas is highly concentrated and does not deflagrate, there is no hope of extinguishing the fire in a short time.

この発明は、従来公知の構造とは全く異なり第
三のシステムとも言える消火装置を提案するもの
であつて、芯収容筒１の間隙２を芯３の厚さより
も大きくして空気流通を可能とし、かつ芯下げ時
の芯３の上端よりもやや高い芯収容筒１壁全周に
小孔やスリツトで開口４を設け、該開口４によつ
て芯収容筒１に隣接せる空気室５と連通すると共
に空気室５には外気に連らなるバルブ６を設け、
該バルブ６は芯上下と連動して芯上昇時に開口
し、芯下げた時には閉止することを特徴とする石
油燃焼器の消火装置に係るものである。尚実施例
に於て芯収容筒１壁は上部芯収容筒１′と下部芯
収容筒１″とに分離して構成しており、上部芯収
容筒１′の下部は空気室５外壁となり、また下部
芯収容筒１″の上部はフランジ状に空気室５壁に
のばされて、接続され、該フランジ部にスリツト
状の小孔４′が設けられている。従つて芯収容筒
１壁の開口４は上部芯収容筒１′と下部芯収容筒
１″との間に形成された間隙４″とフランジ部の小
孔４′とで構成される。７は芯上下装置、７′は芯
保持板、８は芯上下装置７を駆動する芯上下軸、
９は芯上下軸８を芯下げ方向に回転する戻しバネ
である。１０は芯上下軸８回動時芯保持板駆動板
７″を回動させるラツクギアであり、芯保持板駆
動板７″に取付けられた突部１１が、芯保持板駆
動板７″が回動するにしたがつて空気室５のバル
ブ６を押し開いている。 This invention proposes a fire extinguishing system that is completely different from conventionally known structures and can be called a third system, in which the gap 2 of the wick housing cylinder 1 is made larger than the thickness of the wick 3 to allow air circulation. , and an opening 4 with a small hole or slit is provided on the entire circumference of the wall of the lead housing cylinder 1 which is slightly higher than the upper end of the lead 3 when lowering the lead, and the opening 4 communicates with an air chamber 5 adjacent to the lead housing cylinder 1. At the same time, a valve 6 connected to the outside air is provided in the air chamber 5,
This valve 6 relates to a fire extinguishing system for an oil combustor, which is characterized in that the valve 6 is linked to the top and bottom of the wick, opens when the wick is raised, and closes when the wick is lowered. In the embodiment, the wall of the core housing cylinder 1 is configured to be separated into an upper core housing cylinder 1' and a lower core housing cylinder 1'', and the lower part of the upper core housing cylinder 1' becomes the outer wall of the air chamber 5. Further, the upper part of the lower core housing cylinder 1'' is extended and connected to the wall of the air chamber 5 in the form of a flange, and a slit-shaped small hole 4' is provided in the flange portion. Therefore, the opening 4 in the wall of the core housing cylinder 1 is composed of a gap 4'' formed between the upper core housing cylinder 1' and the lower core housing cylinder 1'' and a small hole 4' in the flange portion. 7 is a lead up/down device, 7' is a lead holding plate, 8 is a lead up/down shaft that drives the lead up/down device 7,
9 is a return spring that rotates the core vertical shaft 8 in the core lowering direction. 10 is a rack gear that rotates the core holding plate drive plate 7'' when the lead vertical axis 8 rotates, and a protrusion 11 attached to the lead holding plate driving plate 7'' causes the lead holding plate driving plate 7'' to rotate. Accordingly, the valve 6 of the air chamber 5 is pushed open.

以上の如き構成であるこの発明は芯収容筒１間
隙２よりも芯３が薄く空気の流通が可能であり、
かつ芯収容筒１壁には外気に連らなる開口がない
から、燃焼炎による燃焼筒のドラフトは芯３と芯
収容筒１との間隙から開口４を経て直接空気室５
に影響しており、かつ芯上昇時にはバルブ６が開
いているから燃焼筒のドラフトによつて外気は空
気室５に流入し更に開口４から芯収容筒１間隙を
経て燃焼筒へ流れるものである。この為空気室５
内は常に新鮮な外気で満たされ、空気室５が例え
芯上下装置収容室や転倒時の油だめ室と兼用する
時であつてもほとんど石油ガスを含まない空気が
満たされているものである。而して消火操作時戻
しバネ９の力や手動で芯上下軸８が回転するとま
ず空気室５のバルブ６が閉止し、空気室５を密閉
室とすると共に芯３は開口４よりもやや下方まで
降下する。一方燃焼中空気室５は新しい空気が常
に導入され、かつこの新しい空気は芯３と芯収容
筒１壁の間を流れているので空気室５や芯収容筒
１の温度は室温に近い温度となつており、降下位
置に於ける芯３から発生する石油ガスの量は芯収
容筒１によつて冷やされて非常に少なくなるもの
である。そして芯３の降下と共に芯収容筒１間隙
２へ引込まれた燃焼炎は開口４から密閉された空
気室５の酸素を消費して空気室５のガスを不燃ガ
ス化すると共に、芯下げ時の乱流にのつて芯３か
ら発生する石油ガスは空気室５へ拡散し、該空気
室５はあらかじめ石油ガスを全く含まないから開
口４周辺の芯収容筒間隙２の石油ガスは燃焼継続
不可能な状態に薄められるものである。 In this invention having the above-described structure, the core 3 is thinner than the core housing cylinder 1 and the gap 2, allowing air to circulate.
In addition, since there is no opening in the wall of the wick accommodating cylinder 1 that communicates with the outside air, the draft of the combustion cylinder caused by the combustion flame flows directly into the air chamber 5 through the opening 4 from the gap between the wick 3 and the wick accommodating cylinder 1.
Since the valve 6 is open when the wick is raised, outside air flows into the air chamber 5 due to the draft of the combustion tube, and then flows from the opening 4 through the gap in the wick housing tube 1 to the combustion tube. . For this reason, air chamber 5
The interior is always filled with fresh outside air, and even when the air chamber 5 is used also as a core up/down device storage chamber or an oil sump chamber in the event of an overturn, it is filled with air that contains almost no petroleum gas. . Therefore, when the wick vertical shaft 8 is rotated by the force of the return spring 9 or manually during extinguishing operation, the valve 6 of the air chamber 5 is first closed, making the air chamber 5 a sealed chamber, and the wick 3 is moved slightly below the opening 4. descend to On the other hand, new air is always introduced into the air chamber 5 during combustion, and this new air flows between the wick 3 and the wall of the wick housing cylinder 1, so the temperature of the air chamber 5 and the wick housing cylinder 1 is close to room temperature. The amount of petroleum gas generated from the core 3 in the lowered position is cooled by the core housing cylinder 1 and becomes very small. The combustion flame drawn into the gap 2 of the wick housing cylinder 1 as the wick 3 descends consumes the oxygen in the air chamber 5 sealed from the opening 4 and turns the gas in the air chamber 5 into a non-flammable gas. The petroleum gas generated from the wick 3 due to the turbulence diffuses into the air chamber 5, and since the air chamber 5 does not contain any petroleum gas in advance, the petroleum gas in the wick storage cylinder gap 2 around the opening 4 cannot continue to burn. It can be diluted to a state of

上記の作用は芯下げ時に於て瞬時に進行し、芯
から発生する石油ガス量に着目すれば、まず発生
量が減少し、この内の何％かは空気室５の酸素と
結合して燃焼消費され、更に空気室５の空気と混
合拡散する為、芯３上部の開口４周辺の石油ガス
量は極端に薄くなるものである。 The above action progresses instantaneously when the wick is lowered, and if we focus on the amount of petroleum gas generated from the wick, the amount of oil gas generated will first decrease, and some percent of this will combine with oxygen in the air chamber 5 and burn. Since the petroleum gas is consumed and further mixed and diffused with the air in the air chamber 5, the amount of petroleum gas around the opening 4 in the upper part of the wick 3 becomes extremely thin.

一方、芯収容筒１壁には外気を導入する開口が
ない為に芯収容筒１間隙の石油ガスが燃焼を継続
する為には、芯収容筒１上端から酸素の供給が必
要であり、芯降下途中に開口４より上部の芯収容
筒間隙２に残した石油ガスの燃焼炎は気薄な石油
ガス量の層によつて遮断されて芯３上端には引火
せず燃えつきるものである。その後空気室５の容
積は限定されるもので芯３から引続いて気化する
石油ガスによつてガス濃度が可燃状態にまで高ま
るがこの時までに燃焼炎は消火しており再引火の
恐れは全くない。 On the other hand, since there is no opening in the wall of the core housing cylinder 1 to introduce outside air, oxygen must be supplied from the upper end of the core housing cylinder 1 in order for the petroleum gas in the gap in the core housing cylinder 1 to continue burning. The combustion flame of the petroleum gas left in the wick storage cylinder gap 2 above the opening 4 during the descent is blocked by a thin layer of petroleum gas and burns out without igniting the upper end of the wick 3. Thereafter, the volume of the air chamber 5 is limited, and the petroleum gas that continues to vaporize from the wick 3 increases the gas concentration to a flammable state, but by this time the combustion flame has been extinguished and there is no risk of re-ignition. Not at all.

また消火を確実なものにするには芯収容筒１壁
の全周に小孔もしくはスリツトで構成する開口４
を設けて空気室５と芯収容筒間隙２と連通する必
要があり、開口４の全面積は大きなものとなる
が、空気室５にあけたバルブ６から流入する空気
量はごくわずかでも少しばかりの時間経過で空気
室５を新鮮な外気で満たすことができ、多量の空
気が芯収容筒間隙２から燃焼部に流入して異常燃
焼を起す恐れはない。 In addition, in order to ensure fire extinguishment, openings 4 consisting of small holes or slits are formed around the entire circumference of the core housing cylinder 1 wall.
It is necessary to provide a hole to communicate between the air chamber 5 and the core housing cylinder gap 2, and the total area of the opening 4 becomes large, but the amount of air flowing in from the valve 6 opened in the air chamber 5 is very small. The air chamber 5 can be filled with fresh outside air after the passage of time, and there is no possibility that a large amount of air will flow into the combustion section from the core housing cylinder gap 2 and cause abnormal combustion.

更に強制消火時の悪臭については公知の二方式
共に極めて強いものであるが、この発明では芯収
容筒１壁に外気を導入する開口を持たないから、
燃焼筒のドラフトによつて芯収容筒間隙２の濃い
石油ガスが高温の燃焼筒に導入されて変成ガスと
なり亜臭を室内に放出する恐れは全くないもので
ある。また開口４に連らなる空気室５は始めほと
んど石油ガスを含んでいないから、消火後芯３か
ら石油ガスが発生しても空気よりも重い石油ガス
はまず空気室５を高濃度の石油ガスで満たしてか
ら、芯収容筒間隙２を満たすことになり芯収容筒
１から濃い石油ガスがあふれる頃には燃焼筒も充
分冷却しているから悪臭にならないものである。
この点空気室と類似する石油ガス室を有するもの
では石油ガス室があらかじめ石油ガスで満たされ
ており、かつ爆燃時に多量の石油ガスを強制的に
燃焼筒に排出する為に本件発明とは根本的に異に
している。 Furthermore, both known methods have extremely strong odors during forced extinguishing, but the present invention does not have an opening in the wall of the wick housing cylinder 1 to introduce outside air.
There is no fear that the rich petroleum gas in the wick storage cylinder gap 2 will be introduced into the high-temperature combustion cylinder by the draft of the combustion cylinder and turn into metamorphosed gas and emit subodor into the room. In addition, since the air chamber 5 connected to the opening 4 initially contains almost no petroleum gas, even if petroleum gas is generated from the wick 3 after extinguishing the fire, the petroleum gas, which is heavier than air, will first pass through the air chamber 5 to the highly concentrated petroleum gas. After the wick storage cylinder gap 2 is filled with gas, by the time the wick storage cylinder 1 is filled with rich petroleum gas, the combustion cylinder has also been sufficiently cooled, so that no foul odor occurs.
In this respect, in a device having an oil and gas chamber similar to an air chamber, the oil and gas chamber is filled with oil and gas in advance, and at the time of deflagration, a large amount of oil and gas is forcibly discharged into the combustion cylinder, which is fundamentally different from the present invention. It is different in terms of

以上の様に、この発明は燃焼炎があれば必ず発
生するドラフトを利用するから燃焼筒や類似する
助燃装置といつた構成形状を特定する必要なく、
どの様なタイプにも応用可能であり、消火操作時
に於ては該ドラフトは全く必要としないから転倒
時に於ても有効に作動するものであり、非常に実
用的な消火装置である。 As described above, since this invention utilizes the draft that is always generated when there is a combustion flame, there is no need to specify the configuration shape of a combustion tube or similar auxiliary combustion device.
It is a very practical fire extinguishing device that can be applied to any type of fire extinguishing device, and since the draft is not required at all during fire extinguishing operations, it operates effectively even in the event of a fall.

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

第１図はこの発明品の要部断面図、第２図は同
横断面図である。 １……芯収容筒、２……芯収容筒間隙、３……
芯、４……開口、５……空気室、６……バルブ。 FIG. 1 is a sectional view of a main part of this invention, and FIG. 2 is a cross-sectional view of the same. 1... Core housing cylinder, 2... Core housing cylinder gap, 3...
Core, 4...opening, 5...air chamber, 6...valve.

Claims (1)

【特許請求の範囲】[Claims] １ 芯収容筒の間隙を芯厚さよりも大きくして空
気流通可能とし、かつ芯下げ時の芯の上端よりも
やや高い芯収容筒壁全周に開口を設け、該開口に
よつて芯収容筒に隣接せる空気室と連通すると共
に、空気室には外気に連らなるバルブを設け、該
バルブは芯上下と連動して芯上昇時には開口し、
芯下げ時には閉止することを特徴とする石油燃焼
器の消火装置。1. The gap between the core housing cylinders is made larger than the core thickness to allow air circulation, and an opening is provided around the entire circumference of the core housing cylinder wall that is slightly higher than the upper end of the core when lowering the core, and the openings allow the core housing cylinder to The air chamber is connected to an air chamber adjacent to the wick, and the air chamber is provided with a valve connected to the outside air, and the valve opens when the wick rises in conjunction with the top and bottom of the wick,
A fire extinguishing system for an oil burner characterized by being closed when the wick is lowered.