JPS6331685B2 - - Google Patents
Info
- Publication number
- JPS6331685B2 JPS6331685B2 JP57164660A JP16466082A JPS6331685B2 JP S6331685 B2 JPS6331685 B2 JP S6331685B2 JP 57164660 A JP57164660 A JP 57164660A JP 16466082 A JP16466082 A JP 16466082A JP S6331685 B2 JPS6331685 B2 JP S6331685B2
- Authority
- JP
- Japan
- Prior art keywords
- combustion
- chamber
- nozzle
- fuel
- vaporization
- 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
- 238000002485 combustion reaction Methods 0.000 claims description 65
- 239000000446 fuel Substances 0.000 claims description 50
- 230000008016 vaporization Effects 0.000 claims description 47
- 238000009834 vaporization Methods 0.000 claims description 40
- 239000007788 liquid Substances 0.000 claims description 18
- 238000000889 atomisation Methods 0.000 claims description 15
- 238000005192 partition Methods 0.000 claims description 8
- 238000001514 detection method Methods 0.000 claims description 5
- 238000002156 mixing Methods 0.000 description 15
- 238000010438 heat treatment Methods 0.000 description 9
- 238000009423 ventilation Methods 0.000 description 6
- 238000007664 blowing Methods 0.000 description 5
- 238000001704 evaporation Methods 0.000 description 5
- 230000008020 evaporation Effects 0.000 description 5
- 239000012530 fluid Substances 0.000 description 5
- 239000007789 gas Substances 0.000 description 5
- 239000000203 mixture Substances 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 239000000567 combustion gas Substances 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 206010016754 Flashback Diseases 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000010419 fine particle Substances 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B77/00—Component parts, details or accessories, not otherwise provided for
- F02B77/04—Cleaning of, preventing corrosion or erosion in, or preventing unwanted deposits in, combustion engines
Description
【発明の詳細な説明】
産業上の利用分野
本発明は家庭用暖房器としての熱源器に使用さ
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 used in a heat source device as a household heater.
従来例の構成とその問題点
従来、表面燃焼を行う燃焼装置は気体燃料を使
用するものが主で、液体燃料に関するものは少な
く、液体燃料を使用するものでも家庭用給湯暖房
器としてのボイラあるいは一部家庭用小型暖房器
に見られるのみである。第２図〜第４図に示す構
成図に基づき従来例を説明する。第２図に示す気
体燃料の燃焼器は、金網及び多孔板とで形成
される燃焼筒内に二次整流筒 15′ を略同心円状
に配設すると同時に、燃焼筒の一端を閉鎖キヤツ
プ 17−ａ により閉塞し、他端を送風フアンに
よる送風通路を介した送風チヤンバに連接し
ている。そして送風チヤンバと燃焼筒との連
接部に二次整流筒 15′ と連設した隔壁を有し
ている。また隔壁の二次整流筒 15′ との連設
部には送風口〓〓があり、同時に気体燃料ノズル
5′ が臨設してある。送風フアンの駆動による
送風開始と同時に気体燃料が気体燃料用ノズル
5′ より二次整流筒 15′ 内に噴出される。二次整
流筒 15′ 内で混合されつつ、さらに燃焼筒及
び二次整流筒 15′ 間で混合を促進し、金網表
面上で燃焼を行う。しかし、これを液体燃料によ
る燃焼器として展開するには液体から気体への状
態変化過程を要する為に、蒸発・気化部の構成が
必要とされる。Conventional configurations and their problems Conventionally, combustion devices that perform surface combustion mainly use gaseous fuel, and there are few that use liquid fuel. It is only found in some small household heaters. A conventional example will be explained based on the configuration diagrams shown in FIGS. 2 to 4. The gaseous fuel combustor shown in Fig. 2 has a secondary rectifier tube 15' arranged approximately concentrically within a combustion tube formed of a wire mesh and a perforated plate, and at the same time, one end of the combustion tube is closed with a cap 17-. a, and the other end is connected to a ventilation chamber via a ventilation passage provided by a ventilation fan. A partition wall connected to the secondary rectifier cylinder 15' is provided at the joint between the blow chamber and the combustion cylinder. In addition, there is an air outlet in the part of the bulkhead connected to the secondary rectifier tube 15′, and at the same time a gaseous fuel nozzle
5′ is temporarily installed. At the same time as the blower fan starts blowing air, the gaseous fuel flows into the gaseous fuel nozzle.
5' into the secondary rectifier cylinder 15'. While being mixed within the secondary straightening tube 15', mixing is further promoted between the combustion tube and the secondary straightening tube 15', and combustion is performed on the surface of the wire mesh. However, in order to develop this as a combustor using liquid fuel, a state change process from liquid to gas is required, so an evaporation/vaporization section is required.
第３図に示す従来例はボイラー等の液体燃料を
使用する家庭用給湯器であり、送風アンに通じ
る送風通路１１は途中で分岐し、一方が気化室
′を介して燃焼室′へ通じる通路、そして他方
が初期燃焼用ノズル″の外周を経て燃焼室′へ
通じる通路に形成されている。そして燃料供給管
路の先端には初期燃焼用ノズル 5″ 、メイン燃
焼用ノズルがそれぞれ連結している。また、被
加熱部である気化室 7′ より燃焼室 22′ へ至る
途中に整流板及び多孔保炎板 14′ が設けられ、
燃焼室 22′ へ臨接している。初期に初期燃焼用
ノズル 5″ からの噴霧による拡散燃焼を行い一定
時間の遅延後もしくは所定温度への昇温後に、燃
焼によつて加熱された気化室 7′ への液体燃料の
噴霧供給により気化予混合を行つて多孔保炎板
14′ に保炎燃焼するもので、能力も大きく多孔保
炎板 14′ による多段燃焼で表面燃焼は行つてい
ない。 The conventional example shown in Fig. 3 is a domestic water heater such as a boiler that uses liquid fuel, in which a ventilation passage 11 leading to a ventilation fan branches in the middle, and one passage leads to a combustion chamber' via a vaporization chamber'. , and the other is formed in a passage leading to the combustion chamber' through the outer periphery of the initial combustion nozzle 5''.The initial combustion nozzle 5'' and the main combustion nozzle are connected to the tip of the fuel supply pipe, respectively. There is. In addition, a current plate and a porous flame-holding plate 14' are provided on the way from the vaporization chamber 7', which is the heated part, to the combustion chamber 22'.
It is adjacent to combustion chamber 22′. Initially, diffusion combustion is performed by spraying from the initial combustion nozzle 5'', and after a certain time delay or after the temperature has risen to a predetermined temperature, the liquid fuel is vaporized by spraying and supplying it to the vaporization chamber 7' heated by combustion. Porous flame holding plate by premixing
It has a flame-holding combustion at 14', has a large capacity, and has multi-stage combustion using a porous flame-holding plate 14', so there is no surface combustion.
第４図の従来例は、家庭用小型暖房器で、気化
室 7′ 内に送風通路と燃料微粒化用ノズルに
よる二流体ノズルが連接されていた。また気化
室 7′ の底面裏側にはヒータが固着されてお
り、上方には混合板そして整流筒、金網に
よる燃焼筒が連結されている。気化室 7′ の底部
加熱面が一定温度に昇温後、送風フアン（図示せ
ず）駆動による送風と燃料ポンプ（図示せず）の
駆動による燃料の供給がはじまり、気化室 7′ で
燃料は気化すると同時に予混合を行い、そして混
合板を通過後、一段と混合を促進し金網炎孔
で表面燃焼を行う。燃焼熱の受熱方法により気化
室 7′ 加熱の為のヒータ通電時間の長短はある
ものの、液体燃料を気化室 7′ 内の加熱面で蒸
発・気化するといつた気化手段が常時現存する。 The conventional example shown in FIG. 4 is a small household heater, in which a two-fluid nozzle consisting of an air passage and a fuel atomization nozzle is connected in a vaporization chamber 7'. A heater is fixed to the back side of the bottom of the vaporization chamber 7', and a mixing plate, a rectifier tube, and a combustion tube made of wire mesh are connected above. After the heating surface at the bottom of the vaporization chamber 7′ reaches a certain temperature, the blower fan (not shown) starts to blow air and the fuel pump (not shown) starts to supply fuel, and the fuel in the vaporization chamber 7′ starts flowing. Premixing is performed at the same time as vaporization, and after passing through a mixing plate, mixing is further promoted and surface combustion is performed in a wire mesh flame hole. Although the length of time the heater is energized to heat the vaporization chamber 7' may be longer or shorter depending on the method of receiving combustion heat, there is always a vaporization means that evaporates and vaporizes liquid fuel on a heating surface within the vaporization chamber 7'.
以上の様に、気体燃料使用による従来の表面燃
焼バーナにおいては蒸発・気化部の構成及び一部
燃料の微粒化手段の付加構成が必要である。 As described above, in the conventional surface combustion burner using gaseous fuel, it is necessary to have an evaporation/vaporization section and a part of the fuel atomization means.
また、液体燃料使用による従来の燃焼器におい
ては、気化室の加熱面上で液体燃料を加熱するこ
とにより状態変化（液体→気体）が起こるように
しているが、時間の経過と共に加熱面へのタール
の漸次堆積及び固着が進向する。この結果、混合
比のむら、変化を発生し不安定保炎による燃焼音
の発生、着火・消火時における排出ガス性分（特
にCO、HC等）の劣化といつた諸現象を呈してい
た。 In addition, in conventional combustors that use liquid fuel, a state change (from liquid to gas) occurs by heating the liquid fuel on the heating surface of the vaporization chamber, but as time passes, the heating surface changes. Gradual accumulation and fixation of tar progresses. As a result, various phenomena were observed, including unevenness and changes in the mixing ratio, the generation of combustion noise due to unstable flame holding, and deterioration of exhaust gas components (particularly CO, HC, etc.) during ignition and extinguishing.
発明の目的
本発明は上記欠点に鑑み、気化室へのタール
堆積・固着の抑制、燃焼部への経路雰囲気中で
の蒸発・気化並びに混合の促進を図ることを目的
とするものである。OBJECTS OF THE INVENTION In view of the above-mentioned drawbacks, the present invention aims to suppress tar accumulation and adhesion in the vaporization chamber, and promote evaporation, vaporization, and mixing in the atmosphere of the path to the combustion section.
発明の構成
従来の欠点を解消し、上記目的を達成する為に
本発明は、気化室と燃焼部との間に隔壁を介して
予混合室を設け、気化室には燃焼開始時に使用す
る燃料の液下用ノズルを設け、予混合室には旋回
羽根を内設した燃焼用空気通路としてのホーンを
前記隔壁に設けて突設し、前記ホーンの略中央か
ら定常燃焼時に使用する燃料の微粒化用ノズルを
前記ホーン内に突設したものである。Structure of the Invention In order to eliminate the conventional drawbacks and achieve the above object, the present invention provides a premixing chamber between the vaporizing chamber and the combustion section via a partition wall, and the vaporizing chamber contains fuel used at the start of combustion. The premixing chamber is provided with a horn as a combustion air passage having a swirl vane therein, and protrudes from the partition wall, and from approximately the center of the horn, fine particles of fuel used during steady combustion are ejected. A converting nozzle is provided protruding inside the horn.
上記構成によつて、初期燃焼時の液体燃料のみ
が滴下用ノズルにより気化室に滴下され、加熱気
化され、その後は輻射・伝熱による高温雰囲気と
なつている混合室へ微粒化用ノズルより液体燃料
が供給され、微粒子は混合室雰囲気中で蒸発・気
化し、そして混合され燃焼を継続する。従つて、
液体燃料と気化室との接触時間が短かくなること
となり、タール堆積及び固着が極力抑制されるこ
ととなる。その結果、安定した予混合による良好
な表面燃焼が維持・継続されることとなる。 With the above configuration, only the liquid fuel at the time of initial combustion is dripped into the vaporization chamber by the dripping nozzle, heated and vaporized, and then the liquid is passed through the atomization nozzle into the mixing chamber, which has a high-temperature atmosphere due to radiation and heat transfer. Fuel is supplied, the particulates evaporate and vaporize in the atmosphere of the mixing chamber, and are mixed to continue combustion. Therefore,
The contact time between the liquid fuel and the vaporization chamber is shortened, and tar accumulation and adhesion are suppressed as much as possible. As a result, good surface combustion due to stable premixing is maintained and continued.
実施例の説明
以下本発明の一実施例について第１図に基づい
て説明する。DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to FIG.
第１図において、燃料系は送油パイプを介し
て燃焼ポンプ、切替弁そして滴下用ノズル
、微粒化用ノズルが連結してある。前記送油
パイプは前記燃料ポンプ２を経由後、二路に分
岐し、それぞれ前記切替弁３を経て、一方は加熱
ヒータが埋設された気化筒で形成される気化
室 7′ 内の加熱面に前記滴下用ノズル４として
臨設し、他方は前記気化室 7′ へ連接した予混合
室への入口、略中央に前記微粒化用ノズルと
して臨設している。また送風系として、送風アン
は送風通路を介して前記気化筒を覆いかつ
送風チヤンバを形成する支持筒の一端に連結
している。前記混合室は、均一火炎面を形成す
る、そして前記金網炎孔の内周囲には多孔板
からなる整流筒とを略周心円状に形成し、一端
を前記気化筒に隔壁で連結しかつ他端を閉鎖
キヤツプ 17−ａ で構成してなる燃焼筒内に形
成される。また、前記隔壁には前記気化室 7′
から前記予混合室への燃焼用空気のメイン通路
上に旋回流を形成すべく旋回羽根を連結したホ
ーンが設けてあり、前記微粒化用ノズルが前
記ホーン内部に連接・包含されて二流体ノズル
を構成している。前記燃焼筒の外周、略同心
円上には燃焼空間を介して閉鎖キヤツプ 17−
ｂ により外筒〓〓が連設されており、この外筒〓〓
は、燃焼器外への燃焼ガスの通路を形成している
前記支持筒と前記閉鎖キヤツプ 17−ｂ とで支
持固定ピンを介して固定されている。前記支持
筒の燃焼排ガス通路である送気口〓〓上には排ガ
ス浄化用の触媒を担持した支持フイルタ〓〓が設け
てある。〓〓は前記予混合室への二次混合気孔で
ある。〓〓，〓〓は前記金網炎孔近傍に設けた点火
源並びに温度検出素子である。 In FIG. 1, the fuel system includes a combustion pump, a switching valve, a drip nozzle, and an atomization nozzle connected through an oil pipe. After passing through the fuel pump 2, the oil supply pipe branches into two routes, each passing through the switching valve 3, and one reaching a heating surface in a vaporization chamber 7' formed by a vaporization cylinder in which a heater is embedded. One is provided as the dropping nozzle 4, and the other is provided as the atomization nozzle approximately at the center of the entrance to the premixing chamber connected to the vaporizing chamber 7'. Further, as a blowing system, a blowing fan is connected via a blowing passage to one end of a support tube that covers the vaporizing tube and forms a blowing chamber. The mixing chamber forms a uniform flame surface, and a rectifying tube made of a porous plate is formed around the inner periphery of the wire mesh flame hole in a substantially circumferential shape, and one end is connected to the vaporization tube by a partition wall. It is formed in a combustion cylinder whose other end is constituted by a closed cap 17-a. Further, the vaporization chamber 7' is provided in the partition wall.
A horn connected with swirling vanes is provided to form a swirling flow on the main passage of combustion air from the air to the premixing chamber, and the atomization nozzle is connected and contained within the horn to form a two-fluid nozzle. It consists of On the outer periphery of the combustion cylinder, on a substantially concentric circle, there is a closed cap with a combustion space in between.
The outer cylinder 〓〓 is connected by b, and this outer cylinder 〓〓
is fixed via a support fixing pin to the support tube forming a passage for combustion gas to the outside of the combustor and the closure cap 17-b. A support filter carrying a catalyst for purifying exhaust gas is provided above the air supply port which is the combustion exhaust gas passage of the support tube. 〓〓 is a secondary mixing hole to the premixing chamber. 〓〓 and 〓〓 are an ignition source and a temperature detection element provided near the wire mesh flame hole.
上記構成において、まず気化筒内に埋設した
加熱ヒータに通電し、気化室 7′ 内の加熱面
の温度が所定温度に上昇後、送風フアンを駆動
し、送風通路、送風チヤンバを経て気化室
7′ 内に燃焼用空気を送入する。その後、燃料ポ
ンプを駆動させ、燃料を気化室 7′ 内に臨んだ
滴下ノズルより加熱面上に供給し、瞬時に蒸
発・気化を行う。燃焼用空気は送風チヤンバ、
気化室 7′ を通過時に一部加熱されると同時に混
合を行い、さらにホーンによる旋回流を得て予
混合室内で充分に混合促進された混合気となつ
て多孔板の整流筒を経て燃焼筒を形成する金
網炎孔より噴出する。送風フアンと同時に通
電された点火源〓〓により混合気は着火し、金網炎
孔表面に火炎を形成し、熱を放射すると同時に
燃焼空間で燃焼反応を終了した燃焼ガスが気化
筒の外周に接しながら、支持筒の送気口〓〓よ
り支持フイルタ〓〓を通つて強制的に排出される。
この間、微粒化用ノズルと連通した切替弁は
閉じた状態となつている。温度検出素子〓〓により
所定温度以上を検出すると同時に切替弁の燃料
連通部が切替り、滴下用ノズルの切替弁が閉
じ、微粒化用ノズルの切替弁は開いた状態とな
り、そして点火源〓〓、加熱ヒータへの通電が停
止される。この時、予混合室内の温度は、燃焼
による輻射及び伝熱等により高温に維持され高温
雰囲気場を形成する。一方、燃料供給路の替つた
燃料は微粒化用ノズルより、形成された内部混
合型（外部混合型でも可能）の二流体ノズルに
より一層小さく微粒化されると同時に旋回混合さ
れ、混合気の混合・分散が促進される。このよう
にして、二流体ノズルによつて高温雰囲気中の
予混合室内に霧化された燃料微粒子は雰囲気中
で飛翔中に瞬時に蒸発・気化しそして分散・混合
が促進されつつ整流筒を経て金網炎孔より噴
出しつつ火炎を継続する。また、整流筒上の孔
径は、高温場での逆火防止を充分考慮し設けてあ
る。 In the above configuration, electricity is first applied to the heater buried in the vaporization cylinder, and after the temperature of the heating surface in the vaporization chamber 7' rises to a predetermined temperature, the blower fan is driven, and the air is supplied to the vaporization chamber through the blower passage and the blower chamber.
Inject combustion air into 7′. Thereafter, the fuel pump is driven, and fuel is supplied onto the heating surface from the dripping nozzle facing into the vaporization chamber 7', where it is instantaneously evaporated and vaporized. Combustion air is provided by a ventilation chamber,
As it passes through the vaporization chamber 7', it is partially heated and mixed at the same time, and a swirling flow is obtained by the horn, resulting in a sufficiently mixed mixture in the premixing chamber, which passes through the perforated plate straightening tube and flows into the combustion tube. It is ejected from the wire mesh flame hole that forms the flame hole. The air-fuel mixture is ignited by the ignition source, which is energized at the same time as the blower fan, forming a flame on the surface of the wire mesh flame hole and radiating heat. At the same time, the combustion gas that has completed the combustion reaction in the combustion space comes into contact with the outer periphery of the vaporization cylinder. Meanwhile, the air is forcibly discharged from the air inlet of the support tube through the support filter.
During this time, the switching valve communicating with the atomization nozzle remains closed. At the same time as the temperature detection element detects a predetermined temperature or higher, the fuel communication part of the switching valve switches, the switching valve of the dripping nozzle closes, the switching valve of the atomization nozzle opens, and the ignition source , power supply to the heater is stopped. At this time, the temperature inside the premixing chamber is maintained at a high temperature due to radiation and heat transfer due to combustion, thereby forming a high-temperature atmospheric field. On the other hand, the fuel whose fuel supply path has been changed is atomized into smaller particles by the internal mixing type (external mixing type is also possible) formed two-fluid nozzle than the atomization nozzle, and at the same time is swirl-mixed, resulting in the mixture of the air-fuel mixture.・Dispersion is promoted. In this way, the fuel particles atomized by the two-fluid nozzle into the premixing chamber in a high-temperature atmosphere instantaneously evaporate and vaporize while flying in the atmosphere, and then pass through the rectifier tube while dispersion and mixing are promoted. The flame continues to erupt from the wire mesh flame hole. In addition, the hole diameter on the rectifier tube is designed with sufficient consideration given to preventing flashbacks in high-temperature environments.
発明の効果
本発明は液体燃料燃焼装置によれば、気化筒内
の気化室加熱面に滴下用ノズルを臨設し、気化室
と燃焼部との間に隔壁を介して予混合室を設けこ
の予混合室には旋回羽根を内設したホーンを設け
ると共に前記ホーンの略中央に燃料の微粒化用ノ
ズルを配設して前記予混合室に臨設するととも
に、これらのノズルを選択的に使用するので、以
下の効果がある。Effects of the Invention According to the liquid fuel combustion apparatus of the present invention, a dripping nozzle is provided on the heating surface of the vaporization chamber in the vaporization cylinder, and a premixing chamber is provided between the vaporization chamber and the combustion section via a partition. The mixing chamber is provided with a horn having a swirling vane therein, and a fuel atomization nozzle is disposed approximately in the center of the horn and is placed adjacent to the premixing chamber, and these nozzles are selectively used. , has the following effects.
すなわち燃料の蒸発・気化用の気化室と燃料と
の接触時間を極力抑制することが出来、タールの
生成がおきにくくなるのである。 In other words, the contact time between the fuel and the vaporization chamber for fuel evaporation/vaporization can be minimized, making it difficult for tar to form.
さらに、予混合室内に形成されるホーンと燃料
の微粒化用ノズルからなる二流体ノズル構成によ
り霧化された燃料は一段と小さく微粒化されると
同時に高温輻射による気化が促進され、かつ混合
が促進され、均一度の高い予混合気が得られる。
そして安定した蒸発・気化の継続による安定表面
燃焼が行なわれ、低NOx化を図ることができる。
そしてさらに、クリーンな着火燃焼・消火が維持
されるといつた燃焼の諸特性の改善が大幅に図れ
る。 Furthermore, the two-fluid nozzle configuration consisting of a horn formed in the premixing chamber and a fuel atomization nozzle makes the atomized fuel even smaller and atomized, at the same time promoting vaporization by high temperature radiation and promoting mixing. As a result, a highly homogeneous premixture can be obtained.
Then, stable surface combustion occurs due to continued stable evaporation and vaporization, making it possible to achieve low NOx .
Furthermore, if clean ignition combustion and extinguishing are maintained, various combustion characteristics such as clean ignition combustion and extinguishing can be significantly improved.
第１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２図は気体燃料使用による表
面燃焼バーナの従来例を示す縦断面図、第３図は
家庭用給湯暖房器としてのボイラにおける従来例
を示す縦断面図であり、第４図は家庭用小型暖房
器における従来例を示す燃料気化部の縦断面図で
ある。
…切替弁、…滴下用ノズル、…微粒化用
ノズル、…気化筒、′…気化室、…予混合
室、…燃焼筒、〓〓…温度検出素子。
Fig. 1 is a longitudinal sectional view showing an embodiment of the liquid fuel combustion device of the present invention, Fig. 2 is a longitudinal sectional view showing a conventional example of a surface combustion burner using gaseous fuel, and Fig. 3 is a domestic hot water heater. FIG. 4 is a vertical cross-sectional view of a fuel vaporizing section of a conventional small-sized household heater. ...switching valve, ...dropping nozzle, ...atomization nozzle, ...vaporization tube, '...vaporization chamber, ...premixing chamber, ...combustion tube, 〓〓...temperature detection element.
Claims (1)
介して予混合室を設け、気化室には燃焼開始時に
使用する燃料の滴下用ノズルを設け、予混合室に
は前記隔壁に設けて前記気化室と予混合室を連通
させ、旋回羽根を内設した燃焼用空気通路のホー
ンと前記ホーンの略中央からホーン内に突設した
定常燃焼時に使用する燃料の微粒化用ノズルをそ
れぞれ設けた液体燃料燃焼装置。 ２ 滴下用ノズルと微粒化用ノズルへの供給管路
中へそれぞれ切替弁を設けた特許請求の範囲第１
項に記載の液体燃料燃焼装置。 ３ 燃焼部に温度検出素子を設けると共に、燃焼
による前記温度検出素子の出力で開から閉に切替
る滴下用ノズルの切替弁と閉から開に切替る微粒
化用ノズルの切替弁を有する特許請求の範囲第２
項に記載の液体燃料燃焼装置。[Scope of Claims] 1. A premixing chamber is provided between the vaporization chamber for fuel vaporization and the combustion section via a partition, the vaporization chamber is provided with a nozzle for dropping fuel used at the start of combustion, and the premixing chamber is provided with a nozzle for dropping fuel used at the start of combustion. is provided on the partition wall to communicate the vaporizing chamber and the premixing chamber, and includes a combustion air passage horn with a swirling vane therein, and a combustion air passage horn protruding from approximately the center of the horn into the horn for communicating the vaporizing chamber and the premixing chamber. A liquid fuel combustion device each equipped with an atomization nozzle. 2. Claim 1, in which switching valves are provided in the supply pipes to the dripping nozzle and the atomization nozzle, respectively.
The liquid fuel combustion device described in . 3. A patent claim that includes a temperature detection element in the combustion section, and a switching valve for a dripping nozzle that switches from open to closed based on the output of the temperature detection element due to combustion, and a switching valve for an atomization nozzle that switches from closed to open. range 2nd
The liquid fuel combustion device described in .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16466082A JPS5956011A (en) | 1982-09-20 | 1982-09-20 | Liquid fuel combustion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16466082A JPS5956011A (en) | 1982-09-20 | 1982-09-20 | Liquid fuel combustion device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5956011A JPS5956011A (en) | 1984-03-31 |
| JPS6331685B2 true JPS6331685B2 (en) | 1988-06-24 |
Family
ID=15797385
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16466082A Granted JPS5956011A (en) | 1982-09-20 | 1982-09-20 | Liquid fuel combustion device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5956011A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0397294U (en) * | 1990-01-23 | 1991-10-07 |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5981927U (en) * | 1982-11-19 | 1984-06-02 | 松下電器産業株式会社 | liquid fuel combustion equipment |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5666614U (en) * | 1979-10-22 | 1981-06-03 |
-
1982
- 1982-09-20 JP JP16466082A patent/JPS5956011A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0397294U (en) * | 1990-01-23 | 1991-10-07 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5956011A (en) | 1984-03-31 |
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