JPS61125508A - Petroleum burner - Google Patents

Abstract

PURPOSE:To make a rapid flame spreading from the lower part to the upper part by providing a narrowed part above a wick edge under a flat combustion chamber and equipping rows of air vents of a large diameter on the side wall of the combustion chamber. CONSTITUTION:The pressure controlling plate 19 is provided above the edge of the wick 11 beneath the combustion chamber 17 to form a narrowed part 20. On the side wall of the combustion chamber 16 above the neighborhood of the narrowed part 20, lines 15a of air vent with a diameter larger than that of downward air vents 15 are provided. Gasified fuel, air flowing in from the air vents 15 and combustion exhaust gas are lifted by the draft produced in the combustion chamber 16, but the lower part of the combustion chamber 16 makes a half-closed space by the pressure controlling plate 19, pressure acts laterally and flames are equalized in this space. The narrower the narrowed space is the more remarkable the flame equalizing effect is. But, the flames are hard to spread. Therefore, when rows of air vents 15 of large diameter are provided, a large quantity of air is made to flow in and mixture of the mixed gas with air is accelerated to make an inflammable state, flames are formed easily and stably. These flames make ignition sources and upward combustion progresses continuously.

Description

【発明の詳細な説明】 産業上の利用分野 本発明は灯芯気化式の偏平形状なる石油燃焼器に関する
もので、ストーブ、ファンヒータ等に利用し得るもので
ある。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a wick vaporization type flat oil combustor, which can be used in stoves, fan heaters, and the like.

従来の技術 従来のこの種の石油燃焼器は、例えば実公昭４７−３１
２１７号公報に示される様に、第３図の様な構造になっ
ていた。即ち、側壁に多数の空気孔を有する偏平形状の
燃焼室１の下端部に、火皿２によって挾持された平板状
の灯芯３の先端が嬉出されており、燃焼室１の外側には
一部にガラス板４を備えた外筒６が設けられている。６
は赤熱コイル、７は赤熱ネットである。燃焼室１は上下
方向に断面変化のない矩形または楕円形の横断面を呈し
ている。2. Prior Art A conventional oil combustor of this type is, for example,
As shown in Publication No. 217, it had a structure as shown in Figure 3. That is, the tip of a flat lamp wick 3 held by a fire pan 2 is protruded from the lower end of a flat combustion chamber 1 having a large number of air holes in the side wall. An outer cylinder 6 having a glass plate 4 is provided on the outside. 6
is a red-hot coil, and 7 is a red-hot net. The combustion chamber 1 has a rectangular or elliptical cross section with no change in cross section in the vertical direction.

発明が解決しようとする問題点 上記構成のものにおいて、定常燃焼時には燃焼室１内で
ほぼ均一な燃焼状態となり、赤熱コイル６や赤熱ネット
７も充分加熱され赤熱するが、点火時においては著しい
火炎の偏りを生ずるという問題があった。即ち平板状の
灯芯３の一部に砥気ヒータ等で着火されると、火炎は灯
芯３長手方向に広まりつつ全体の燃料気化量を増加させ
るが、燃料気化量は急速には増加せず、燃焼熱によって
生ずる通風力（ドラフト）に従って燃焼室１の長手方向
中央部に集中した火炎を形成する結果となる。この状態
は灯芯３かもの燃料気化量が充分大となり、燃料ガスお
よび燃焼排ガス等によって燃焼室１内が充満されるまで
続き、その間不完全燃焼による一酸化炭素や臭気あるい
はスス等を多量に発生するという問題があった。Problems to be Solved by the Invention In the structure described above, during steady combustion, a nearly uniform combustion state occurs in the combustion chamber 1, and the red-hot coil 6 and the red-hot net 7 are sufficiently heated and become red-hot, but at the time of ignition, there is a significant flame. There was a problem that this caused a bias in the results. That is, when a part of the flat lamp wick 3 is ignited by an abrasive heater or the like, the flame spreads in the longitudinal direction of the lamp wick 3 and increases the overall amount of fuel vaporization, but the amount of fuel vaporization does not increase rapidly. This results in the formation of a flame concentrated in the longitudinal center of the combustion chamber 1 in accordance with the draft generated by the combustion heat. This state continues until the amount of fuel vaporized in the lamp wick 3 becomes sufficiently large and the inside of the combustion chamber 1 is filled with fuel gas and combustion exhaust gas, etc. During this period, a large amount of carbon monoxide, odor, soot, etc. is generated due to incomplete combustion. There was a problem.

本発明は上記問題を解決し、点火時において速やかに均
一燃焼へ移行し、−酸化炭素、臭気、スス等の発生を防
止しようとするものである。The present invention aims to solve the above-mentioned problems, quickly shift to uniform combustion at the time of ignition, and prevent the generation of carbon oxides, odors, soot, etc.

問題点を解決するための手段 上記従来の問題点を解決する本発明の技術的手段は、偏
平な燃焼室下方部の灯芯先端より上方なる位置に狭隘部
を配設けると共に、この狭隘部上部近傍の燃焼室側壁に
大径の空気孔列を穿設するものである。Means for Solving the Problems The technical means of the present invention for solving the above conventional problems is to provide a narrow portion at a position above the tip of the wick in the lower part of the flat combustion chamber, and to A row of large-diameter air holes are bored in the side wall of the combustion chamber.

作　　用 上記技術的手段による作用は次、の様になる。。For production The effects of the above technical means are as follows. .

燃焼室下方部に設けられた狭隘部により、点火直後の燃
料ガスおよび火炎の横方向への拡大を急速ならしめ、長
手方向に亘る均一性を確保して中央部への集中火炎を防
止すると共に、大径空気孔列によって狭隘部の下方から
上方への火炎移行を速やかに行わしめ、未燃ガスの放出
を防止し、−酸化炭素や臭気の発生を抑えるものである
。The narrow section provided in the lower part of the combustion chamber allows the fuel gas and flame to spread quickly in the lateral direction immediately after ignition, ensuring uniformity in the longitudinal direction and preventing the flame from concentrating in the center. The large-diameter air hole array allows the flame to quickly move from the bottom to the top of the narrow space, prevents the release of unburned gas, and suppresses the generation of carbon oxides and odors.

実施例 以下、本発明の一実施例について、添付図面に基づき説
明する。EXAMPLE Hereinafter, an example of the present invention will be described based on the accompanying drawings.

第１図において、１１は平板状の灯芯で、上部を火皿１
２に挟持されて先端を上方に突出し、下部はタンク１３
内に収納され燃料に浸漬されている。またツマミ１４の
回転に連動して灯芯１１は上下動する様に構成されてい
る。火皿１２上には多数の空気孔１５を有する横長偏平
の燃焼室１６が載置され、その外側に外筒１７が設けら
れている。外筒１７の前面上部には、燃焼室１６前面上
部に備えられた赤熱部１６ａに対面してガラス板１８が
配設されている。In Figure 1, numeral 11 is a flat lamp wick, with the upper part attached to the fire pan 1.
2 with the tip protruding upward, and the bottom part is the tank 13
It is housed inside and immersed in fuel. Further, the lamp wick 11 is configured to move up and down in conjunction with the rotation of the knob 14. A horizontally long and flat combustion chamber 16 having a large number of air holes 15 is placed on the fire pan 12, and an outer cylinder 17 is provided outside the combustion chamber 16. A glass plate 18 is disposed at the upper front surface of the outer cylinder 17 so as to face the red-hot part 16a provided at the upper front surface of the combustion chamber 16.

ここで燃焼室１７下部の灯芯１１先端より上方なる位置
に制圧板１９が設けられており、狭隘部２０が形成され
ており、この狭隘部２ｏ近傍上部の燃焼室１６側壁に、
少くも下方の空気孔１５より大径なる空気孔列１５ａを
穿設している。また該空気孔列１５ａ直上の燃焼室１６
外壁面には、灯芯１１より気化した燃料は、燃焼室１６
内で空気孔１５，１５ａより空気の供給を受けて混合し
つつ燃焼する。点火時においては、灯芯１１の一部に着
火されると、火炎は灯芯１１に沿って拡大し、灯芯１１
の全長に亘って火炎が形成され、燃料の気化が促進され
る。気化した燃料および灯芯１１近傍の空気孔１５より
流入した空気、並びに燃焼排ガスは、燃焼室１６内に生
じたドラフトにより上昇しようとするが、制圧板１９が
上方にあるために、該制圧板１９以下の燃焼室１６下部
が半閉空間となり、燃焼熱によって体積膨張した圧力が
横方向（長手方向）に働き、この窒闇内で火炎が均一化
される。従って燃焼室１６の中央部に集中して立炎する
ことが避けられ、全幅略均−の上昇気流となし得る。Here, a pressure plate 19 is provided at a position above the tip of the lamp wick 11 at the bottom of the combustion chamber 17, and a narrow part 20 is formed, and on the upper side wall of the combustion chamber 16 near this narrow part 2o,
An air hole array 15a having a diameter at least larger than that of the lower air hole 15 is bored. Also, the combustion chamber 16 directly above the air hole row 15a
On the outer wall surface, the fuel vaporized from the lamp wick 11 is stored in the combustion chamber 16.
Inside, air is supplied from air holes 15, 15a, and the mixture is mixed and combusted. At the time of ignition, when a part of the lamp wick 11 is ignited, the flame expands along the lamp wick 11, and the flame spreads along the lamp wick 11.
A flame is formed over the entire length of the fuel, promoting vaporization of the fuel. The vaporized fuel, the air flowing in through the air hole 15 near the lamp wick 11, and the combustion exhaust gas try to rise due to the draft generated in the combustion chamber 16, but since the pressure plate 19 is located above, the pressure plate 19 The lower part of the combustion chamber 16 below becomes a semi-closed space, and pressure expanded in volume due to combustion heat acts in the lateral direction (longitudinal direction), and the flame is made uniform within this nitrogen darkness. Therefore, it is possible to prevent the flames from being concentrated in the center of the combustion chamber 16, and to create an upward airflow that is approximately uniform across the entire width.

しかし乍ら狭隘部２０は、燃焼室１６の断面を小さくし
ているために、第２図に示す如く燃料空気・排ガスの混
合気（Ｇ）がここに集中し、流速を犬とする。従って点
火直後に制圧板１９以下の火炎が速かに上方へ移行せず
、狭隘部２０において失火状態となり、未燃ガスを放出
する状態に陥り易い。特に狭隘部２ｏが狭いほど、前記
火炎均一化の効果は大きい反面、この火炎移行は滞り、
長時間に亘って未燃ガスを排出する状態となり、−酸化
炭素や臭気も著しい。ここで狭隘部２０直上の燃焼室１
６側壁に大径の気孔列１５ａを設けることにより、空気
（Ａ′）が多量に流入して混合気（Ｇ）と空気（Ａ）の
混合を促進し、可燃状態とすると共に、気孔列１５ａが
大径であるために火炎（Ｆ）が安定形成（保炎）され易
く、この火炎（Ｆ）が着火源となって、以降、上方の燃
焼を滞りなく進行せしめることが可能となる。かくして
狭隘部２０の上下間の火炎移行が速やかに行われ、未燃
ガスや一酸化炭素、臭気等を点火時に多発することは防
止できる。However, since the narrow section 20 reduces the cross section of the combustion chamber 16, the fuel air/exhaust gas mixture (G) concentrates there, as shown in FIG. 2, and the flow velocity slows down. Therefore, immediately after ignition, the flame below the pressure control plate 19 does not move upward quickly, resulting in a misfire condition in the narrow portion 20, which tends to cause unburned gas to be released. In particular, the narrower the narrow part 2o, the greater the effect of flame uniformity, but on the other hand, the flame transfer is delayed,
Unburnt gas is emitted for a long time, and carbon oxide and odor are also significant. Here, the combustion chamber 1 directly above the narrow part 20
By providing the large-diameter row of pores 15a on the side wall of 6, a large amount of air (A') flows in to promote the mixing of the air-fuel mixture (G) and air (A), creating a combustible state, and the row of pores 15a Since the flame (F) has a large diameter, it is easy to form the flame (F) stably (flame holding), and this flame (F) serves as an ignition source, making it possible to proceed with upward combustion without delay. In this way, flame transfer between the upper and lower portions of the narrow portion 20 occurs quickly, and it is possible to prevent unburned gas, carbon monoxide, odor, etc. from being generated frequently during ignition.

更に前記大径の気孔列１５ａの外側直上に添装された制
風板２１により、空気（Ａ）の上昇流をさえぎって燃焼
室１６内に向う動圧に変換させると、気孔列１５ａから
の空気（Ａ）の流入はより促進され、保炎効果を増すこ
とができる。Furthermore, by blocking the upward flow of air (A) and converting it into a dynamic pressure directed into the combustion chamber 16 by using a baffle plate 21 attached directly above the outside of the large-diameter row of pores 15a, the air flow from the row of pores 15a is The inflow of air (A) is further promoted, and the flame stabilizing effect can be increased.

なお狭隘部２０に対して気孔列１５ａの位置は前後どち
らの壁面でも良いが、第２図に示す如く制圧板１９突出
側と対面の側壁に気孔列１５ａを設けた方が、混合気（
Ｇ）流と空気（Ａ）流の混合はより促進され、効果的で
ある。Note that the position of the pore row 15a with respect to the narrow portion 20 may be on either the front or rear wall surface, but as shown in FIG.
The mixing of the G) flow and the air (A) flow is more promoted and effective.

発明の効果 以上の様に、本発明の石油燃焼器は、偏平なる燃焼室の
下部に設けた狭隘部上部近傍に大径の空もので、偏平形
燃焼器の性能を著しく向上させるものである。Effects of the Invention As described above, the oil combustor of the present invention has a large-diameter empty space near the upper part of the narrow part provided at the bottom of the flat combustion chamber, which significantly improves the performance of the flat combustion chamber. .

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

第１図は本発明一実施例なる石油燃焼器の縦断面図、第
２図はその要部断面図、第３図は従来の石油燃焼器の要
部縦断面図である。 １１・・・・・灯芯、１５・・・・・・空気孔、１６ａ
・・・・・・（大径ン気孔列、１６・・−・・−燃焼室
、１７・・・・・・ＩＡ筒、１９・・・・・・制圧板、
２ｏ・・・・・・狭隘部、２１・・・・・・制風板、２
１ａ・・・・・・開口。 代理人の氏名　弁理士　中　尾　敏　男　ほか１名第１
図　　　　　　　／ｆ山灯Ｊて・ １５・・・皇ｆＬ孔 １７・外弯 ／９・・制万敵 第　２１２１ １５・・・慶ｌ孔FIG. 1 is a longitudinal sectional view of an oil combustor according to an embodiment of the present invention, FIG. 2 is a sectional view of a main part thereof, and FIG. 3 is a longitudinal sectional view of a main part of a conventional oil combustor. 11...Light wick, 15...Air hole, 16a
...... (Large diameter air hole row, 16... - combustion chamber, 17... IA cylinder, 19... pressure plate,
2o... Narrow area, 21... Wind control board, 2
1a...Opening. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Diagram /f Santou J Te・ 15... Huang f L Kong 17・ Gaijin / 9... Control of All Enemies No. 2121 15... Gyeong I Kong

Claims (3)

【特許請求の範囲】[Claims] （１）側壁に多数の空気孔を有する偏平な燃焼室と、前
記燃焼室下端部に先端を臨ませた平板状の灯芯と、前記
燃焼室を収納する外筒とを有し、前記燃焼室内下部の前
記灯芯先端より上方なる位置に狭隘部を設け、前記狭隘
部上部近傍の側壁に少くとも下部より大径の空気孔列を
穿設した石油燃焼器。(1) The combustion chamber has a flat combustion chamber with a large number of air holes in the side wall, a flat lamp wick whose tip faces the lower end of the combustion chamber, and an outer cylinder that houses the combustion chamber. An oil combustor, wherein a narrow part is provided at a position above the tip of the wick in the lower part, and a row of air holes having a diameter larger than that of the lower part is bored in the side wall near the upper part of the narrow part. （２）狭隘部上部近傍の大径空気孔列を穿設した燃焼室
壁の外側空気流路に、前記大径空気孔列直上において圧
損を生ぜしめる制風板を配設した特許請求の範囲第１項
記載の石油燃焼器。(2) The scope of the patent claim, in which a baffle plate that causes a pressure loss directly above the large-diameter air hole row is disposed in the outer air flow path of the combustion chamber wall in which the large-diameter air hole row is bored near the upper part of the narrow part. The oil combustor according to paragraph 1. （３）狭隘部は、燃焼室の片側内壁に突起部を配設する
ことにより形成せしめると共に、大径空気孔列をその対
面の前記燃焼室壁に穿設した特許請求の範囲第１項また
は第２項記載の石油燃焼器。(3) The narrow portion is formed by disposing a protrusion on one inner wall of the combustion chamber, and a row of large-diameter air holes is bored in the opposite wall of the combustion chamber. The oil combustor described in paragraph 2.