JPS6312205B2 - - Google Patents
Info
- Publication number
- JPS6312205B2 JPS6312205B2 JP13342382A JP13342382A JPS6312205B2 JP S6312205 B2 JPS6312205 B2 JP S6312205B2 JP 13342382 A JP13342382 A JP 13342382A JP 13342382 A JP13342382 A JP 13342382A JP S6312205 B2 JPS6312205 B2 JP S6312205B2
- Authority
- JP
- Japan
- Prior art keywords
- tube
- vaporization
- cylinder
- liquid fuel
- burner
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 230000008016 vaporization Effects 0.000 claims description 56
- 238000009834 vaporization Methods 0.000 claims description 47
- 238000002485 combustion reaction Methods 0.000 claims description 44
- 239000000446 fuel Substances 0.000 claims description 33
- 239000007788 liquid Substances 0.000 claims description 25
- 239000006200 vaporizer Substances 0.000 claims description 9
- 239000000203 mixture Substances 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D11/00—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space
- F23D11/005—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space with combinations of different spraying or vaporising means
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Spray-Type Burners (AREA)
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、液体燃料を気化するとともに燃焼用
空気と混合し、これを金網等の表面に燃焼を行な
う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 that vaporizes liquid fuel, mixes it with combustion air, and burns it on the surface of a wire mesh or the like.
従来例の構成とその問題点
従来のこの種の液体燃料燃焼装置を第1図に示
し説明する。ヒータ1により加熱されるつぼ状の
気化筒2の側壁には、給油ポンプ3、燃焼フアン
4に接続された給油口5および給気口6が開口し
ている。また気化筒2の上部には多数の小孔16
が設けられた整流筒7およびその周囲に整数空間
8を介して金網の燃焼筒9が配設されている。さ
らに燃焼筒9の周囲には排気空間10を介して保
護筒11が設けられている。一方、気化筒2の上
部開口部には開口部12を開設した絞り板13が
配設され、気化筒2とによつて気化室14を区画
し、また整流筒7とによつて混合空間15を区画
している。上記構成において、ヒータ1に通電さ
れ、気化筒2が加熱されて所定温度まで達する
と、燃料ポンプ3および燃焼フアン4が作動して
液体燃料および燃焼用空気を気化室14に供給す
る。気化室14に入つた液体燃料は加熱された気
化筒2内壁にて気化し、燃焼用空気と混合して気
化室14から絞り板13の開口部12を経て混合
室15内に吐出される。混合室15に入つた混合
気は、さらに均一に混合されて整流筒7の多数の
小孔16から整流空間8を通つて燃焼筒9から噴
出し、点火装置(図示せず)により点火されて燃
焼筒9の表面にて燃焼を行う。ところが上記従来
例においては、燃焼筒9にて燃焼を行つた後の高
温の排気ガスは、排気空間10を通つて上方へ排
出されてしまい、気化筒2に熱を与えることが少
なかつた。そのため、気化筒2を所定の温度に保
つためにはヒータ1に通電を行う必要があり、不
経済であつた。その欠点を解消するため、気化筒
2の外周で保護筒11に接する部分に受熱部を気
化筒2と一体に設けることも考えられるが、気化
筒2における重量が増加し、予熱時間が長くかか
る欠点が生じてしまつていた。そのため、上記欠
点を解消し、燃焼排ガスからの熱回収を行うとと
もに、気化室重量の増加による予熱時間の増加を
防止するものとして第2図に示す構成が提案され
ていた。Structure of Conventional Example and Its Problems A conventional liquid fuel combustion apparatus of this type is shown in FIG. 1 and will be described. A fuel supply port 5 and an air supply port 6 connected to a fuel pump 3 and a combustion fan 4 are opened in the side wall of a pot-shaped vaporization cylinder 2 heated by a heater 1 . In addition, there are many small holes 16 in the upper part of the vaporizer cylinder 2.
A combustion tube 9 made of wire gauze is arranged around the straightening tube 7 with an integer space 8 interposed therebetween. Furthermore, a protection tube 11 is provided around the combustion tube 9 with an exhaust space 10 in between. On the other hand, a diaphragm plate 13 with an opening 12 is disposed at the upper opening of the vaporization tube 2, and a vaporization chamber 14 is divided by the vaporization tube 2, and a mixing space 15 is defined by the rectification tube 7. are divided. In the above configuration, when the heater 1 is energized and the vaporization cylinder 2 is heated to a predetermined temperature, the fuel pump 3 and combustion fan 4 are activated to supply liquid fuel and combustion air to the vaporization chamber 14. The liquid fuel that has entered the vaporization chamber 14 is vaporized on the heated inner wall of the vaporization cylinder 2, mixed with combustion air, and discharged from the vaporization chamber 14 through the opening 12 of the throttle plate 13 into the mixing chamber 15. The air-fuel mixture that has entered the mixing chamber 15 is further uniformly mixed and is ejected from the combustion tube 9 through the many small holes 16 of the rectifying tube 7 through the rectifying space 8, and is ignited by an ignition device (not shown). Combustion is performed on the surface of the combustion tube 9. However, in the above-mentioned conventional example, the high-temperature exhaust gas after being combusted in the combustion tube 9 is exhausted upward through the exhaust space 10, giving little heat to the vaporization tube 2. Therefore, in order to maintain the vaporization tube 2 at a predetermined temperature, it is necessary to energize the heater 1, which is uneconomical. In order to eliminate this drawback, it is conceivable to provide a heat receiving part integrally with the vaporizer tube 2 on the outer periphery of the vaporizer tube 2 at the part that contacts the protection tube 11, but this increases the weight of the vaporizer tube 2 and takes a long preheating time. A shortcoming had arisen. Therefore, the configuration shown in FIG. 2 has been proposed to solve the above drawbacks, recover heat from the combustion exhaust gas, and prevent an increase in preheating time due to an increase in the weight of the vaporization chamber.
ヒータ1によつて加熱される横に配置された気
化筒2の底面にはバーナーベース21が当接され
ており、気化筒底面とによつて空気室22が形成
され、また空気室22には燃焼フアン4が接続さ
れ、また気化筒底面には空気室22と連通して給
気口23およびノズル口24が開口しており、給
気口23には燃焼フアン4から供給される燃焼用
空気を、気化室14に噴出する風向板25が設け
られている。またノズル口24には給油ポンプ3
に接続された給油パイプ26が開口している。気
化筒2の開口端面には第1図と同様に開口部12
を設けた絞り板13と、多数の小孔16を設け、
横に配置された整流筒7および金網によつてつく
られた横に配置された燃焼筒9が配設されてい
る。燃焼筒9と保護筒11との間の排気空間10
の一端はバーナーカバー27によつて閉塞されて
いる。保護筒11は、バーナーベース21と一体
で側壁に排気口28を設けた支持筒29によつて
支持されている。30,31は燃焼装置を組立て
るための長ネジおよびナツトである。上記構成に
おいて、気化筒2が所定温度まで達すると、燃料
ポンプ3および燃焼フアン4が作動し、液体燃料
が給油パイプ26を通つて気化室14に供給さ
れ、加熱された気化筒2内壁にて気化すると同時
に、燃焼用空気が空気室22から給気口23を通
つて風向板25によつて気化室14に噴出し、気
化ガスと混合する。気化室14内の混合気は、絞
り板13の開口部12から混合室15に流入す
る。混合室15でさらに均一に混合された混合気
は整流筒7の小孔16から流出して燃焼筒9の表
面にて燃焼を行う。燃焼後の高温の排気ガスは、
排気空間10を流れて気化筒2を加熱した後に支
持筒29に設けられた排気口28から排出され
る。この構成においては、排気ガスから気化筒2
への熱回収が極めて容易に得られるため、気化筒
2を加熱するヒータ1は運転初期に通電するのみ
で、運転中は燃焼熱によつて加熱されるので、通
電の必要がなく経済的である。また、受熱のため
に特別な部分を必要としないため、気化筒重量が
増加して予熱時間が長くかかることもない。しか
しながら、第2図における構成においては、高温
の燃焼排ガスは支持筒29に設けられた排気口2
8から排出されるが、その熱によるドラフトのた
めに、排ガスは排気空間10内を上側に扁つて流
れ、そのため気化筒2の外周側壁の上半分を主に
加熱していた。一方、気化室14内に供給された
液体燃料は、その自重により気化筒2の下部内壁
にて気化を行うが、その時気化潜熱が気化壁より
うばわれるのに対し、燃焼排ガスからの熱の受熱
が十分でないため気化面部分での温度が低下し、
タールが生成し易い欠点があつた。また、排気ガ
スからの受熱量を増加して、低温になり易い気化
筒2の下部側壁を気化するのに必要な温度まで上
昇させると、気化筒2の上部側壁が高温になり過
ぎて耐久性が低下したり、著るしい場合は溶けた
りする。 A burner base 21 is in contact with the bottom surface of the vaporization tube 2 placed horizontally and heated by the heater 1, and an air chamber 22 is formed by the bottom surface of the vaporization tube. A combustion fan 4 is connected, and an air supply port 23 and a nozzle port 24 are opened at the bottom of the carburetor cylinder in communication with the air chamber 22, and the air supply port 23 receives combustion air supplied from the combustion fan 4. A wind direction plate 25 is provided to blow out the air into the vaporizing chamber 14. In addition, the nozzle port 24 is provided with an oil supply pump 3.
The oil supply pipe 26 connected to is open. An opening 12 is provided on the open end surface of the vaporizing cylinder 2 as in FIG.
A diaphragm plate 13 provided with a diaphragm plate 13 and a large number of small holes 16 are provided,
A laterally arranged rectifier tube 7 and a laterally arranged combustion tube 9 made of wire mesh are provided. Exhaust space 10 between combustion tube 9 and protection tube 11
One end is closed by a burner cover 27. The protection tube 11 is supported by a support tube 29 that is integral with the burner base 21 and has an exhaust port 28 on its side wall. 30 and 31 are long screws and nuts for assembling the combustion device. In the above configuration, when the vaporization cylinder 2 reaches a predetermined temperature, the fuel pump 3 and the combustion fan 4 are activated, liquid fuel is supplied to the vaporization chamber 14 through the fuel supply pipe 26, and the heated inner wall of the vaporization cylinder 2 is heated. At the same time as the combustion air is vaporized, it is blown out from the air chamber 22 through the air supply port 23 into the vaporization chamber 14 by the wind direction plate 25, and mixed with the vaporized gas. The air-fuel mixture in the vaporization chamber 14 flows into the mixing chamber 15 through the opening 12 of the throttle plate 13 . The air-fuel mixture that has been more uniformly mixed in the mixing chamber 15 flows out from the small holes 16 of the rectifier tube 7 and is combusted on the surface of the combustion tube 9. The high temperature exhaust gas after combustion is
After flowing through the exhaust space 10 and heating the vaporizing cylinder 2, it is discharged from the exhaust port 28 provided in the support cylinder 29. In this configuration, the exhaust gas is
Since heat recovery can be obtained extremely easily, the heater 1 that heats the vaporizer cylinder 2 only needs to be energized at the beginning of operation, and is heated by the combustion heat during operation, so there is no need to energize it, making it economical. be. Furthermore, since no special part is required for heat reception, the weight of the vaporizing cylinder does not increase and the preheating time does not take long. However, in the configuration shown in FIG.
However, due to the draft caused by the heat, the exhaust gas flows upward in the exhaust space 10, thereby mainly heating the upper half of the outer circumferential side wall of the vaporizer cylinder 2. On the other hand, the liquid fuel supplied into the vaporization chamber 14 is vaporized on the lower inner wall of the vaporization cylinder 2 due to its own weight, but at that time, the latent heat of vaporization is carried away from the vaporization wall, while the heat is received from the combustion exhaust gas. Because the temperature is not sufficient, the temperature at the vaporization surface decreases,
It had the disadvantage of easily generating tar. In addition, if the amount of heat received from the exhaust gas is increased to the temperature required to vaporize the lower side wall of the carburetor 2, which tends to become cold, the upper side wall of the carburetor 2 will become too hot, resulting in poor durability. decreases or, in severe cases, melts.
発明の目的
本発明は、上記従来例における欠点を解消し、
タール生成や、気化筒が溶けたりするのを防ぐこ
とを目的とする。Purpose of the invention The present invention eliminates the drawbacks in the above conventional examples,
The purpose is to prevent tar formation and melting of the vaporizer cylinder.
発明の構成
上記目的を達成するために本発明では気化筒の
外周部における排ガスと接触する受熱部面積を液
体燃料が気化される気化筒下部で、他よりも広く
して排ガスからの受熱量を高め、液体燃料の気化
部分における低温化を防止してタールの発生を防
止すると同時に、液体燃料の気化を行う必要な部
分の温度を高めて、他の部分は低温にしておくこ
とにより耐久性の高い液体燃料燃焼装置を得るも
のである。Structure of the Invention In order to achieve the above object, the present invention increases the amount of heat received from the exhaust gas by making the area of the heat receiving part in contact with the exhaust gas on the outer periphery of the vaporization cylinder larger than that in the lower part of the vaporization cylinder where the liquid fuel is vaporized. At the same time, by increasing the temperature of the part where the liquid fuel is vaporized and keeping the other parts at a low temperature, durability can be improved. This provides a highly efficient liquid fuel combustion device.
実施例の説明
以下、本発明の一実施例を第3図、第4図によ
り説明する。なお、図中第2図における構成部品
と同一部品は同番号で示し、説明を省略する。気
化筒2において、液体燃料の気化が行われる下部
側壁の外周部には受熱フイン101が気化筒2と
一体に設けられており、燃焼排ガスから熱を回収
し、気化筒2の下部側壁を強く加熱するよう構成
されている。上記構成において、気化室14に液
体燃料と燃焼用空気が供給されると、加熱された
気化筒2の下部側壁にて液体燃料は気化され、燃
焼用空気と混合して混合ガスとなり、燃焼筒9に
て燃焼する。燃焼による高温の燃焼排ガスは排気
空間10を通つて支持筒29に設けられた排気口
28から排出されるが、その際気化筒2の外周壁
と接触して気化筒2を加熱する。この気化筒2の
外周の下部側壁には受熱フイン101が設けてあ
るために、下部側壁にはより多くの熱が排ガスよ
り与えられて下部側壁は高温化され、液体燃料の
気化によつて気化潜熱がうばわれても低温化する
ことはなく、タールの発生を防止できる。また、
受熱フイン101によつて気化を行うのに十分な
熱量が気化筒2の下部側壁に供給されるため、気
化筒2の他の部分は高温化する必要がなく、耐久
性を高めることができる。なお第3図および第4
図に示す実施例では気化筒2の外周に部分的に受
熱フイン101を設けたが、他の実施例として、
第5図に示すようにフイン高さを変えてもよいこ
とは言うまでもない。DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 3 and 4. Components in the figure that are the same as those in FIG. 2 are indicated by the same numbers, and explanations thereof will be omitted. In the vaporization tube 2, heat receiving fins 101 are integrally provided on the outer periphery of the lower side wall where the liquid fuel is vaporized, and recover heat from the combustion exhaust gas to strengthen the lower side wall of the vaporization tube 2. It is configured to heat. In the above configuration, when liquid fuel and combustion air are supplied to the vaporization chamber 14, the liquid fuel is vaporized on the lower side wall of the heated vaporization tube 2, mixed with combustion air to form a mixed gas, and the combustion chamber 14 is supplied with liquid fuel and combustion air. Burns at 9. The high-temperature combustion exhaust gas from combustion passes through the exhaust space 10 and is discharged from an exhaust port 28 provided in the support tube 29, but at this time it comes into contact with the outer peripheral wall of the vaporization tube 2 and heats the vaporization tube 2. Since the heat receiving fins 101 are provided on the lower side wall of the outer periphery of the vaporizing cylinder 2, more heat is given to the lower side wall by the exhaust gas, the lower side wall is heated up, and the liquid fuel is vaporized by vaporization. Even if the latent heat is stolen, the temperature will not drop, and tar generation can be prevented. Also,
Since sufficient heat for vaporization is supplied to the lower side wall of the vaporization tube 2 by the heat receiving fins 101, other parts of the vaporization tube 2 do not need to be heated to high temperatures, and durability can be improved. In addition, Figures 3 and 4
In the embodiment shown in the figure, the heat receiving fins 101 are partially provided on the outer periphery of the vaporizing cylinder 2, but in other embodiments,
It goes without saying that the fin height may be changed as shown in FIG.
発明の効果
以上の説明からも明らかなように、本発明によ
れば、気化筒は排ガスに加熱される外周受熱面に
おいて、液体燃料が気化される気化筒下部での受
熱面積を、他よりも大とすることにより、液体燃
料の気化が行われる気化面部分の温度低下を防止
し、タールの発生を防止でき、また、必要な気化
面部分のみを高温化し、他の部分を低温化するこ
とができるので耐久性を高めることができ、部分
的な著るしい高温化にともなう変形や溶融を防止
できる。Effects of the Invention As is clear from the above explanation, according to the present invention, the vaporization cylinder has a heat receiving area at the lower part of the vaporization cylinder where the liquid fuel is vaporized, on the outer peripheral heat receiving surface heated by the exhaust gas. By increasing the temperature, it is possible to prevent the temperature of the vaporization surface where the liquid fuel is vaporized from decreasing and to prevent the generation of tar, and it is also possible to heat only the necessary vaporization surface and lower the temperature of other parts. As a result, durability can be increased, and deformation and melting caused by significant localized temperatures can be prevented.
第1図は従来の液体燃料燃焼装置を示す縦断面
図、第2図は他の従来の液体燃料燃焼装置を示す
縦断面図、第3図は本発明の液体燃料燃焼装置の
一実施例を示す縦断面図、第4図は第3図に示す
実施例の気化筒2の横断面図、第5図は本発明の
他の実施例における液体燃料燃焼装置の気化筒の
横断面図である。
1……ヒータ、2……気化筒、3……給油ポン
プ、4……燃焼フアン、7……整流筒、9……燃
焼筒、11……保護筒、16……小孔、27……
バーナーカバー、28……排気口、101……受
熱フイン。
FIG. 1 is a vertical cross-sectional view showing a conventional liquid fuel combustion device, FIG. 2 is a vertical cross-sectional view showing another conventional liquid fuel combustion device, and FIG. 3 is a vertical cross-sectional view showing an embodiment of the liquid fuel combustion device of the present invention. FIG. 4 is a cross-sectional view of the vaporization tube 2 of the embodiment shown in FIG. 3, and FIG. 5 is a cross-sectional view of the vaporization tube of a liquid fuel combustion device in another embodiment of the present invention. . DESCRIPTION OF SYMBOLS 1... Heater, 2... Vaporization tube, 3... Oil supply pump, 4... Combustion fan, 7... Rectifier tube, 9... Combustion tube, 11... Protection tube, 16... Small hole, 27...
Burner cover, 28...exhaust port, 101...heat receiving fin.
Claims (1)
囲に整流空間を介して設けた燃焼筒からなり、横
に配置されたバーナ筒と、このバーナ筒の一端に
接続され、かつヒータにより加熱される横に配置
された気化筒と、前記バーナ筒の他端を閉塞した
バーナカバーと、前記バーナ筒の周囲に排気空間
を介して配置され、一端を前記バーナカバーによ
り閉塞された保護筒と、前記気化筒の外周を排気
ガスが接触して流れるように気化筒近傍の前記保
護筒に開口した排気口とを備え、前記気化筒はそ
の外周受熱面において、液体燃料が気化される気
化筒下部での受熱面積を、他よりも大とした液体
燃料燃焼装置。 2 気化筒は下部外周に受熱フインを設けた特許
請求の範囲第1項記載の液体燃料燃焼装置。 3 気化筒は外周全体に受熱フインを設けるとと
もに気化筒下部の受熱フインの高さを、他の受熱
フインよりも高くした特許請求の範囲第1項記載
の液体燃料燃焼装置。[Claims] 1. Consisting of a rectifier tube having a large number of small holes and a combustion tube provided around the rectifier tube through a rectification space, and connected to a burner tube disposed laterally and one end of the burner tube. a vaporizer cylinder arranged horizontally and heated by a heater; a burner cover that closes the other end of the burner cylinder; and a burner cover arranged around the burner cylinder with an exhaust space in between, one end of which is closed by the burner cover. The vaporization tube includes a closed protection tube and an exhaust port opened in the protection tube near the vaporization tube so that exhaust gas flows in contact with the outer periphery of the vaporization tube, and the vaporization tube has a liquid fuel on its outer heat receiving surface. A liquid fuel combustion device that has a larger heat-receiving area at the bottom of the vaporizer cylinder than other types. 2. The liquid fuel combustion device according to claim 1, wherein the vaporizing cylinder is provided with heat receiving fins on the lower outer periphery. 3. The liquid fuel combustion apparatus according to claim 1, wherein the vaporizing cylinder is provided with heat receiving fins on the entire outer periphery, and the height of the heat receiving fin at the lower part of the vaporizing cylinder is higher than other heat receiving fins.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13342382A JPS5924110A (en) | 1982-07-29 | 1982-07-29 | Liquid fuel burner |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13342382A JPS5924110A (en) | 1982-07-29 | 1982-07-29 | Liquid fuel burner |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5924110A JPS5924110A (en) | 1984-02-07 |
JPS6312205B2 true JPS6312205B2 (en) | 1988-03-17 |
Family
ID=15104421
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13342382A Granted JPS5924110A (en) | 1982-07-29 | 1982-07-29 | Liquid fuel burner |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5924110A (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59142314A (en) * | 1983-02-02 | 1984-08-15 | Matsushita Electric Ind Co Ltd | Burner |
JPH059487Y2 (en) * | 1985-06-04 | 1993-03-09 |
-
1982
- 1982-07-29 JP JP13342382A patent/JPS5924110A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS5924110A (en) | 1984-02-07 |
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