JPS59176519A - Liquid fuel combustion device - Google Patents

Abstract

PURPOSE:To shorten the fire extinguishing time uniformly by a method wherein when a burner is upset, an inner flame cylinder and an outer flame cylinder are made to spring out from a fire grate so that a fuel stagnates in a protruded part of a cylindrical section and flames are held as they are at the openings in the cylindrical section. CONSTITUTION:When the burner is upset sidewardly, a chimney including the inner flame cylinder 3 and the outer flame cylinder 4 spring out to leave away from a wick outer cylinder 6 and a wick guide cylinder 7. Further, simultaneously with the upsetting of the burner, a wick 1 lowers to lie at the lower part of the clearance between the wick guide cylinder 7 and the wick outer cylinder 6. However, as the upper parts of the wick guide cylinder 7 and the wick outer cylinder 6 have been heated to a high temperature, a part of the liquid fuel adhered to those parts and a part of the fuel impregnated into the top end of the wick 1 become gasified to flow outside. Then the flow of the gasified fuel is carried toward the circumferential direction and stagnates in the protruded part 15 formed at the top end of the wick guide cylinder 7 to make itself an outlet port for the gasified fuel. As a consequence, air enters the protruded section 15 through the opening 16 in the cylindrical section 14 and mixes with the stagnated fuel gas so that the flames are held as they are in the protruded section 15.

Description

【発明の詳細な説明】 産業上の利用分野 本発明は、広く一般家庭等にて暖房や調理等に用いられ
る液体燃料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 liquid fuel combustion device widely used for heating, cooking, etc. in general households.

従来例の構成とその問題点 ２べ一２゛ 従来、主として石油ストーブ等に用いた灯芯バーナは、
燃焼騒音が低く、構成が簡単であり操作が容易であり、
手軽に移動が可能である。そして点火、燃焼量調節、消
火は灯芯を上下に移動させ燃料の蒸発を制御している。Conventional structure and its problems 2. Conventionally, the wick burner used mainly in kerosene stoves, etc.
Low combustion noise, simple configuration and easy operation;
It can be easily moved. Ignition, combustion amount adjustment, and extinguishing are controlled by moving the wick up and down to control fuel evaporation.

点火する時、灯芯を上昇させ燃焼室中に臨ませるととも
に高温の引火部を灯芯に近づけ燃焼を開始する。燃焼量
のコントロールは、灯芯を上下に移動し燃料の蒸発面積
を変化させ燃焼量を増減する。消火はラックピニオン等
に上り灯芯を下へ移動させ灯芯温度の低下により燃料の
蒸発量を減少させ火炎のリフティング失火により燃焼を
停止する。灯芯バーナは安全性能から振動あるいは転倒
した場合灯芯をバネ等の力により瞬時に降下させ消火さ
せる。この構成は灯芯を下げることにより高温部と灯芯
の距離の増大と冷却により灯芯の先端からの燃料蒸発量
が激減することと、消火直前の火炎は灯芯に保炎してい
るからこの火炎近傍の酸素を少なくすることにより、失
火させる。しかし、失火直前は円筒の灯芯の部分的に保
炎するため、火炎の無層灯芯部３ページ 分から空気が流下し、消火捷での時間が不均一で長く要
しだ。そのため、芯案筒捷だは芯外筒に数個の孔を設け
る方法と、内炎筒と芯案内筒が接する部分にスリット状
の間隙を設ける方法が提案されている。芯案内筒または
芯外筒に数個の孔を設ける方法は、消火時前記孔に保炎
させ、芯の一部に保炎することを防止し灯芯の蒸発を急
激させ消火時間を短縮させるが、転倒時前記孔から燃料
が流出し引火する危険があり、まだ、燃焼中は上記孔を
灯芯で閉塞しているが、灯芯の変形により空気がランダ
ムに流入するため燃焼量が変化し、発熱量の変化、立炎
、臭気を生じる。また、内炎筒と芯案内筒が接する部分
にスリット状の間隙を設ける方法は、同じく消火時上記
スリット状の間隙に保炎させることにより灯芯への保炎
を防止し消火時間が早くなるが、しかし、燃焼中上記間
隙から流入する空気に上り内炎筒下部の保炎を不安定と
し、燃焼量の変動と臭気の発生を生じた。When igniting, the wick is raised to face the combustion chamber, and the high-temperature flammable part is brought close to the wick to begin combustion. To control the amount of combustion, move the wick up and down to change the evaporation area of the fuel and increase or decrease the amount of combustion. To extinguish the fire, the lamp wick is moved downward using a rack and pinion, the temperature of the wick decreases, the amount of fuel evaporation is reduced, and combustion is stopped due to flame lifting and misfire. For safety reasons, when a wick burner vibrates or falls over, the wick is instantly lowered by the force of a spring or the like to extinguish the fire. This configuration is possible because by lowering the wick, the distance between the hot part and the wick increases, and due to cooling, the amount of fuel evaporation from the tip of the wick is drastically reduced. Also, since the flame just before extinguishing is held in the wick, By reducing the amount of oxygen, misfires are caused. However, just before a misfire, the cylindrical wick partially holds the flame, so air flows down from the three pages of the non-layered wick section of the flame, making the extinguishing time uneven and long. Therefore, a method has been proposed in which several holes are provided in the core guide tube or core outer tube, and a method is provided in which a slit-shaped gap is provided at the portion where the inner flame tube and the core guide tube contact. The method of providing several holes in the wick guide tube or wick outer tube allows the holes to hold the flame when extinguishing, prevents the flame from being held in a part of the wick, and speeds up the evaporation of the wick to shorten the extinguishing time. There is a danger that fuel will flow out of the hole and catch fire when it falls over, and while the hole is still burning, the hole is blocked with a wick, but as the wick deforms and air randomly flows in, the amount of combustion changes and heat is generated. Causes changes in quantity, flames, and odor. In addition, the method of providing a slit-shaped gap at the part where the inner flame tube and the wick guide tube contact prevents flame holding to the wick by holding the flame in the slit-shaped gap when extinguishing, and speeds up the extinguishing time. However, during combustion, the air flowing in through the gap made the flame holding at the bottom of the inner flame cylinder unstable, causing fluctuations in the amount of combustion and the generation of odors.

発明の目的 本発明の目的は、バーナが転倒した時、消火時間を均一
に短かくすることにより安全性の向上を図るにある。OBJECTS OF THE INVENTION An object of the present invention is to improve safety by uniformly shortening the extinguishing time when a burner falls over.

発明の構成 本発明は芯案内筒の内炎筒を載せる火皿部の端部を内炎
筒より小さい直径で上方に突出する筒部とその先端を前
記筒部より大きく内炎筒より小さい張り出し部を設ける
とともに、前記筒部に開孔を設けることにより、バーナ
が転倒した時、内炎筒、外炎筒は火皿部より飛びだし、
前記張り出し部で前記筒部に流れのよどみ部を生じしめ
、筒部の開孔に保炎させることにより、消火時間を均一
に短かくできるものである。Structure of the Invention The present invention is characterized in that the end of the fire pan on which the inner flame tube of the core guide tube is mounted has a tube portion that projects upward and has a smaller diameter than the inner flame tube, and the tip thereof has an overhanging portion that is larger than the tube portion and smaller than the inner flame tube. By providing a hole in the cylindrical portion, when the burner falls over, the inner flame tube and outer flame tube will fly out from the fire pan.
The extinguishing time can be uniformly shortened by creating a flow stagnation part in the cylindrical part at the projecting part and holding the flame in the opening of the cylindrical part.

実施例の説明 以下、本発明の一実施例について図面に基づき説明する
。図において、円筒状の灯芯１は、下部を燃料２の中に
沈設し、上部をそれぞれ円筒状の内炎筒３と外炎筒４で
構成された一次燃焼室５に露出しており、芯外筒６と芯
案内筒７により構成される間隙を上下に動くように（操
作メカは図示せず）取付けである。前記外炎筒４の上部
に開孔５ページ 率が前記外炎筒４より大なる円筒状の多孔筒８を設け、
前記内炎筒３と前記多孔筒８により、前記−次燃焼室５
の上部に二次燃焼室９を構成している。内炎筒３、外炎
筒４とほぼ同心状にクロスピン１０を貫通させ設けた円
筒状の外筒１１の上部には、ガラス等材料にした透過性
の円筒状の筒１２を取付けである。前記芯案内筒７の前
記内炎筒３を載せる火皿部の端部１３を内炎筒３より小
さい直径でかつ上方に突出する筒部１４とその先端を前
記筒部１４より大きく前記内炎筒３より小さい張り出し
部１５を設けるとともに、前記筒部１４に開孔１６を設
けである。DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. In the figure, a cylindrical lamp wick 1 has its lower part submerged in fuel 2 and its upper part exposed to a primary combustion chamber 5 composed of a cylindrical inner flame tube 3 and an outer flame tube 4, respectively. It is mounted so that it can move up and down in the gap formed by the outer cylinder 6 and the core guide cylinder 7 (the operating mechanism is not shown). A cylindrical porous tube 8 having a perforation 5 page ratio larger than that of the outer flame tube 4 is provided above the outer flame tube 4,
The inner flame cylinder 3 and the porous cylinder 8 form the secondary combustion chamber 5.
A secondary combustion chamber 9 is configured in the upper part of the combustion chamber 9. A transparent cylindrical tube 12 made of a material such as glass is attached to the upper part of a cylindrical outer tube 11 which has a cross pin 10 passed through it almost concentrically with the inner flame tube 3 and the outer flame tube 4. The end portion 13 of the fire pan portion of the core guide tube 7 on which the inner flame tube 3 is mounted has a diameter smaller than that of the inner flame tube 3 and a cylindrical portion 14 that projects upward, and the tip thereof has a diameter larger than the inner flame tube 14. A projecting portion 15 smaller than 3 is provided, and an opening 16 is provided in the cylindrical portion 14.

次ニ動作について説明する。Next, the second operation will be explained.

灯芯１を通り燃料２は、その先端に毛細管現象により吸
い上げられる。燃料が十分に浸み込んだ灯芯１を上昇さ
せ一次燃焼室５に露出させ点火すると、灯芯１の先端に
着火火口りを生じ燃焼を開始する。燃焼による高温ガス
が一次燃焼室５、二次燃焼室９を通ることにより、熱ド
ラフトを生じ燃焼に必要な空気が内炎筒３．外炎筒４の
孔Ａ１７６ペー〜−゛ および多孔筒８の孔８１８より流入する。燃料の蒸発は
内炎筒３．外炎筒４の孔Ａ１７から流入する空気量の増
減と、芯の露出面積の増減により変化する。火炎は孔Ａ
１７において気孔燃焼し、この気孔燃焼は灯芯に燃料の
蒸発熱を供給する。バーナが横に転倒した時、内炎筒３
．外炎筒４を含むチムニは芯外筒６．芯案内筒７より離
れて飛び出す。そのだめ芯案内筒７．芯外筒６は大気中
に露出する。灯芯１は転倒と同時にバネの力で降下しく
感振器、バネは図示せず）芯案内筒７と芯外筒６による
間隙の下部に位置する。しかし、芯案内筒７および芯外
筒６の上部と灯芯１の先端は高温であったためその熱に
より芯案内筒７．芯外筒６の上部に付着した燃料と、灯
芯１先端に含浸した燃料はガスとなり、間隙より外部へ
流出する。このガスの流出口にあたる芯案内筒７の先に
設けた張り出し部１５により流れが周方向に押されよど
み部を作る。このよどみ部に、筒部１４に設けた開孔１
６より空気が流入し前記燃料ガスと混合するため、張り
出し部１５に保炎した火炎を作る。Fuel 2 passes through the lamp wick 1 and is sucked up to its tip by capillary action. When the lamp wick 1 sufficiently soaked with fuel is lifted up, exposed to the primary combustion chamber 5, and ignited, an ignition vent is formed at the tip of the lamp wick 1 and combustion begins. When high temperature gas from combustion passes through the primary combustion chamber 5 and the secondary combustion chamber 9, a thermal draft is generated and the air necessary for combustion is transferred to the inner flame tube 3. It flows through the holes A176 of the outer flame cylinder 4 and the holes 818 of the multi-hole cylinder 8. Evaporation of fuel occurs in the inner flame tube 3. It changes depending on an increase or decrease in the amount of air flowing in from the hole A17 of the outer flame tube 4 and an increase or decrease in the exposed area of the wick. Flame is hole A
At 17, stomatal combustion occurs, and this stomatal combustion supplies the heat of vaporization of the fuel to the wick. When the burner fell sideways, the inner flame tube 3
．． The chimney including the outer flame tube 4 is the core outer tube 6. It pops out away from the core guide tube 7. Sonodame core guide tube7. The core outer cylinder 6 is exposed to the atmosphere. When the lamp wick 1 falls down, it is lowered by the force of a spring (vibration sensor (spring not shown)) and is located at the lower part of the gap between the wick guide tube 7 and the outer core tube 6. However, since the upper parts of the wick guide tube 7 and the outer wick tube 6 and the tip of the lamp wick 1 were at high temperatures, the heat caused the wick guide tube 7. The fuel adhering to the upper part of the outer wick tube 6 and the fuel impregnated at the tip of the wick 1 turn into gas and flow out through the gap. The flow is pushed in the circumferential direction by an overhanging portion 15 provided at the tip of the core guide cylinder 7, which is an outlet for this gas, creating a stagnation portion. An opening 1 provided in the cylindrical part 14 in this stagnation part
Since air flows in from 6 and mixes with the fuel gas, a stable flame is created in the overhang 15.

７ページ 張り出し部１５の保炎燃焼はエッヂ状のリフティングし
にくい形状と、開孔１６より流入する空気と燃料ガスは
筒部１４にて十分に混合するため非常に安定している。Page 7 The flame-holding combustion of the overhanging part 15 is very stable because of the edge-like shape that is difficult to lift and the air and fuel gas flowing in through the opening 16 are sufficiently mixed in the cylindrical part 14.

そのため、灯芯１の一部に火炎が保炎した時も、火炎の
無い灯芯の上部の張り出し部１５には保炎燃焼するだめ
空気が流下し供給されず、灯芯１での燃焼は失火する。Therefore, even when the flame is stabilized in a part of the lamp wick 1, no air flows down and is supplied to the upper projecting part 15 of the lamp wick where there is no flame for flame-holding combustion, and the combustion in the lamp wick 1 misfires.

芯外筒６の場合も同様である。このため、転倒後、燃料
を含む芯外筒６．灯芯１には火炎をほとんど形成しなめ
ため、燃料の蒸発に必要な熱の供給が激減し燃料の蒸発
量が急激に減少し燃料濃度が淡くなり、リフト失火まで
の時間が短かくなり、常に同じ状態−張り出し部１５に
おける保炎−であるため消火時間が安定している。また
、−火燃焼室６への空気の流入路は、通常燃焼中内炎筒
３゜外炎筒４の気孔燃焼を行なう孔Ａ１７のみであるた
め、保炎が安定し燃焼量の変化、臭気、立炎等を生じる
ことがなく、また、外部へ逆火する様な危険も発生し々
い。また、張り出し部１５の先端を下方向へ曲げだ形状
にすることにより、転倒時、張り出し部１５周囲の空気
と燃料ガス流れの乱れを増加させ張り出し部１５での保
炎性が向上し、消火時間がさらに短かくなる。そして、
チムニを設置する場合の内炎筒３の案内を行ない確実に
取付けを行なえるものである。The same applies to the case of the outer core cylinder 6. For this reason, after falling, the core outer cylinder 6. Since almost no flame is formed in the wick 1, the supply of heat necessary for fuel evaporation is drastically reduced, the amount of fuel evaporated is rapidly reduced, the fuel concentration becomes lighter, the time until lift misfire is shortened, and Since the state is the same - flame holding in the overhanging portion 15 - the extinguishing time is stable. In addition, since the air inflow path into the combustion chamber 6 is normally only the hole A17 that performs pore combustion of the inner flame tube 3° and the outer flame tube 4 during combustion, flame stability is stable, and changes in combustion amount and odor are prevented. , there is no possibility of standing flames, and there is a risk of backfire to the outside. In addition, by making the tip of the overhang 15 curve downward, when the overhang occurs, turbulence in the air and fuel gas flow around the overhang 15 is increased, flame retention at the overhang 15 is improved, and fire extinguishing is achieved. Time becomes even shorter. and,
When installing a chimney, the inner flame cylinder 3 can be guided and the installation can be carried out reliably.

発明の効果 本発明は、芯案内筒の内炎筒を載せる火皿部の端部を内
炎筒より小さい直径で上方に突出する筒部とその先端を
上記筒部より大きく内炎筒より小さい張り出し部を設け
るとともに、前記筒部に開口孔を設けたことにより、消
火時間を均一に短かくし安全性を向上させるとともに、
燃焼量の変化を生じなく、立炎、臭気の発生や、逆火現
象の危険を防止できるものである。また、芯案内筒上部
は開口部から流入する空気により冷却されるため温度が
下がり、芯案内筒上部、灯芯にタールが付着することに
より発生する燃焼量の変化、芯上下動作の不都合を生じ
ることが減少できる。Effects of the Invention The present invention has an end portion of the fire pan on which the inner flame tube of the core guide tube is placed, and a tube portion that projects upward and has a smaller diameter than the inner flame tube, and a tip thereof that has an overhang that is larger than the tube portion and smaller than the inner flame tube. By providing an opening hole in the cylindrical part, the extinguishing time is uniformly shortened and safety is improved.
It does not cause any change in the amount of combustion, and can prevent the risk of standing flames, odor generation, and flashback phenomena. In addition, the upper part of the wick guide tube is cooled by the air flowing in from the opening, which lowers the temperature, causing tar to adhere to the upper part of the wick guide tube and the lamp wick, causing changes in the combustion amount and inconveniences in the vertical movement of the wick. can be reduced.

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

図は本発明の一実施例を示す縦断面図である。 ９Ｎ−シ ト・・・・・灯芯、３・・・・・・内炎筒、４・・・・
・・外炎筒、６・・・・・・芯外筒、了・・・・・・芯
案内筒、１４・・・・・・筒部、１５・・・・張り出し
部、１６・・・・・・開孔。The figure is a longitudinal sectional view showing an embodiment of the present invention. 9N-Sito...Light wick, 3...Inner flame tube, 4...
... Outer flame tube, 6... Core outer tube, End... Core guide tube, 14... Cylinder part, 15... Overhanging part, 16... ...Open hole.

Claims (1)

【特許請求の範囲】 ０）複数の孔を有する内炎筒と外炎筒よりなる燃焼室と
、燃焼時前記燃焼室中に先端が位置する灯芯の両側に接
する芯案内筒と芯外筒と、前記芯案内筒の前記内炎筒を
載せる火皿部の端部を前記内炎筒より小さい直径で上方
に突出する筒部とを備え、前記筒部の先端に前記筒部よ
り大きくかつ前記内炎筒より小さい張り出し部を設ける
とともに、前記筒部に開孔を設けた液体燃料燃焼装置。 （２）張り出し部の先端を下方向へ曲げた特許請求の範
囲第１項記載の液体燃料燃焼装置。[Scope of Claims] 0) A combustion chamber consisting of an inner flame tube and an outer flame tube having a plurality of holes, and a wick guide tube and an outer wick tube that touch on both sides of a wick whose tip is located in the combustion chamber during combustion. , an end of the fire pan on which the inner flame tube of the core guide tube is placed has a cylindrical portion projecting upward and having a smaller diameter than the inner flame tube; A liquid fuel combustion device including a projecting portion smaller than a flame cylinder and an opening in the cylinder portion. (2) The liquid fuel combustion device according to claim 1, wherein the tip of the projecting portion is bent downward.