JP2000074314A - LOW NOx OIL BURNER - Google Patents
LOW NOx OIL BURNERInfo
- Publication number
- JP2000074314A JP2000074314A JP10248354A JP24835498A JP2000074314A JP 2000074314 A JP2000074314 A JP 2000074314A JP 10248354 A JP10248354 A JP 10248354A JP 24835498 A JP24835498 A JP 24835498A JP 2000074314 A JP2000074314 A JP 2000074314A
- Authority
- JP
- Japan
- Prior art keywords
- oil
- nozzle holder
- air
- combustion
- holding plate
- 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.)
- Granted
Links
Landscapes
- Pressure-Spray And Ultrasonic-Wave- Spray Burners (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、小型の低ＮＯｘ油
バーナに関する。The present invention relates to a small, low NOx oil burner.
【０００２】[0002]
【従来の技術】従来は小型油バーナとして、図３に示す
ようなものが公知であった。即ち、この小型油バーナ
は、先端の単一開口部からエアーが噴出する燃焼筒ａ
と、燃焼筒ａの内部に挿通された支持パイプｂの先端に
設けられかつ外径方向に傾斜角をもたない油噴射ノズル
ｃと、燃焼筒ａと油噴射ノズルｃとの間に設けられた保
炎板ｄと、を備えている。2. Description of the Related Art Conventionally, a small oil burner as shown in FIG. 3 has been known. That is, this small oil burner has a combustion cylinder a from which air is blown out from a single opening at the tip.
And an oil injection nozzle c provided at the tip of a support pipe b inserted into the interior of the combustion cylinder a and having no inclination angle in the outer diameter direction, and provided between the combustion cylinder a and the oil injection nozzle c. And a flame holding plate d.
【０００３】[0003]
【発明が解決しようとする課題】ところで、近年では、
大気汚染防止が大きな社会的課題となっており、特に、
窒素酸化物（ＮＯｘ）の発生を抑制することが急務とな
っている。これにより、ＮＯｘの排出規制については、
大型の燃焼装置のみならず、小型の燃焼装置についても
規制の対象となってきている。しかしながら、最近まで
小型油バーナは排出規制の対象外であったため、小型油
バーナの分野ではＮＯｘの発生を低減させる研究開発が
遅れており、早急な低ＮＯｘ油バーナの開発と実用化が
望まれていた。However, in recent years,
Air pollution prevention has become a major social issue.
There is an urgent need to suppress the generation of nitrogen oxides (NOx). As a result, regarding NOx emission regulations,
Not only large combustion devices but also small combustion devices have been subject to regulation. However, since small oil burners were not subject to emission regulations until recently, research and development to reduce the generation of NOx has been delayed in the field of small oil burners, and the rapid development and commercialization of low NOx oil burners is desired. I was
【０００４】そこで、本発明は、ＮＯｘの発生を確実か
つ効率良く低減することができる低ＮＯｘ油バーナを提
供することを目的とする。[0004] Therefore, an object of the present invention is to provide a low NOx oil burner capable of reliably and efficiently reducing the generation of NOx.
【０００５】[0005]
【課題を解決するための手段】上述の目的を達成するた
めに、本発明に係る低ＮＯｘ油バーナは、先端開口部か
らエアーが噴出する燃焼筒の該先端開口部の中心位置に
ノズルホルダを設けると共に、該ノズルホルダの先端外
周縁に沿って所定中心角度ピッチで、かつ、軸心に対し
て外径方向へ所定傾斜角度をもって、複数個の油噴射ノ
ズルを配設し、上記油噴射ノズルから噴出した油滴の燃
焼時に於て、相隣接する油噴射ノズルから噴出した油滴
が相互に混合する油滴混合領域と、相隣接する油噴射ノ
ズルから噴出した油滴が相互に混合しない油滴非混合領
域を形成するようにしたものである。In order to achieve the above-mentioned object, a low NOx oil burner according to the present invention is provided with a nozzle holder at a center position of a front end opening of a combustion cylinder from which air is blown out from a front end opening. A plurality of oil injection nozzles are provided at a predetermined center angle pitch along the outer peripheral edge of the tip end of the nozzle holder and at a predetermined inclination angle in the outer diameter direction with respect to the axis. During the combustion of oil droplets ejected from the nozzle, the oil droplet mixing region where oil droplets ejected from adjacent oil injection nozzles mix with each other and the oil that does not mix oil droplets ejected from adjacent oil injection nozzles with each other This is to form a non-drop mixing area.
【０００６】また、燃焼筒とノズルホルダとの間に、円
環状保炎板を設け、さらに、該保炎板に周方向に、複数
個のエアー噴出孔を設けたものである。Further, an annular flame holding plate is provided between the combustion cylinder and the nozzle holder, and a plurality of air ejection holes are provided in the flame holding plate in a circumferential direction.
【０００７】また、保炎板とノズルホルダとの間に、該
ノズルホルダを外嵌するエアーパイプを設け、燃焼筒内
に供給されたエアーが上記エアーパイプ側に分流してノ
ズルホルダの先端外周縁を囲むように噴出する先端開口
部からエアーが噴出するものである。An air pipe for fitting the nozzle holder is provided between the flame holding plate and the nozzle holder, and the air supplied into the combustion cylinder is diverted to the air pipe side to be outside the tip of the nozzle holder. The air is blown out from the opening at the tip that blows out so as to surround the periphery.
【０００８】[0008]
【発明の実施の形態】以下、実施の形態を示す図面に基
づき、本発明を詳説する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the drawings showing embodiments.
【０００９】図１と図２は、本発明の低ＮＯｘ油バーナ
の実施の形態を示している。１は燃焼筒、２はノズルホ
ルダ、３は油噴射ノズルである。燃焼筒１は、その内部
に燃焼用エアー（矢印Ａ）が供給され、先端開口部から
エアーを噴出するように構成されている。また、燃焼筒
１内部の軸心Ｐ上には、先端に上記ノズルホルダ２が取
付けられた支持パイプ４が挿設されており、この支持パ
イプ４にてノズルホルダ２は燃焼筒１の先端開口部の中
心位置に保持されている。FIGS. 1 and 2 show an embodiment of a low NOx oil burner according to the present invention. 1 is a combustion cylinder, 2 is a nozzle holder, and 3 is an oil injection nozzle. The combustion cylinder 1 is configured such that combustion air (arrow A) is supplied to the inside thereof and the air is ejected from an opening at the end. Further, a support pipe 4 having the nozzle holder 2 attached to the tip thereof is inserted on the axis P inside the combustion cylinder 1, and the nozzle holder 2 is opened by the support pipe 4 at the tip end of the combustion cylinder 1. It is held at the center position of the part.
【００１０】また、ノズルホルダ２の先端外周角部は面
取りされており、この面取りされた先端外周縁に沿って
所定中心角度θ1 ピッチで、かつ、軸心Ｐに対して外径
方向へ所定傾斜角度θ2 をもって、複数個の上記油噴射
ノズル３…が配設されている。具体的には、例えば、中
心角度θ1 を60°とし、かつ、傾斜角度θ2 を約40°と
して６個の油噴射ノズル３…をノズルホルダ２に配設し
ている。[0010] The tip outer peripheral corner portion of the nozzle holder 2 are chamfered, predetermined at a predetermined central angle theta 1 pitch along the beveled tip outer peripheral edge and radially outward relative to the axis P with an inclination angle theta 2, a plurality of the oil injection nozzle 3 ... are arranged. Specifically, for example, the center angle theta 1 and 60 °, and six oil spray nozzle 3 ... inclination angle theta 2 as about 40 ° are arranged in the nozzle holder 2.
【００１１】また、燃焼筒１とノズルホルダ２との間
（先端開口部）には、円環状保炎板５が設けられてい
る。この保炎板５は、油噴射ノズル３…よりも後方位置
に設けられ、ノズルホルダ２の先端を外部へ突出させる
孔部を有している。さらに、保炎板５には、周方向に複
数個のエアー噴出孔６…が設けられている。即ち、この
エアー噴出孔６…は、各油噴射ノズル３…に対応する位
置の保炎板５外周縁を切欠いた切欠部と、燃焼筒１外周
壁とで形成されており、６個の油噴射ノズル３…の各々
に対応する６個のエアー噴出孔６…が、保炎板５の外周
縁に沿って等ピッチで設けられている。An annular flame holding plate 5 is provided between the combustion cylinder 1 and the nozzle holder 2 (at the opening at the tip). The flame holding plate 5 is provided at a position rearward of the oil jet nozzles 3 and has a hole for projecting the tip of the nozzle holder 2 to the outside. Further, the flame holding plate 5 is provided with a plurality of air ejection holes 6 in the circumferential direction. That is, the air ejection holes 6 are formed by a cutout portion formed by cutting out the outer peripheral edge of the flame holding plate 5 at a position corresponding to each of the oil injection nozzles 3 and the outer peripheral wall of the combustion cylinder 1. Six air ejection holes 6 corresponding to each of the ejection nozzles 3 are provided at equal pitches along the outer peripheral edge of the flame holding plate 5.
【００１２】さらに、保炎板５とノズルホルダ２との間
には、ノズルホルダ２を外嵌する短筒状のエアーパイプ
７が設けられている。エアーパイプ７は、その先端外周
面が保炎板５の孔部内周縁に当接状に保持されており、
ノズルホルダ２との間にエアー流路を形成している。Further, between the flame holding plate 5 and the nozzle holder 2, there is provided a short cylindrical air pipe 7 for externally fitting the nozzle holder 2. The air pipe 7 has its distal end outer peripheral surface held in contact with the inner peripheral edge of the hole of the flame holding plate 5,
An air flow path is formed between the nozzle holder 2 and the air passage.
【００１３】また、保炎板５の孔部から僅かに外方へ突
出した上記エアーパイプ７の先端外周縁は、円環テーパ
状の副保炎板８にて被覆されており、副保炎板８の先端
内周縁が各油噴射ノズル３…に近接した状態とされてい
る。なお、９はエアーパイプ７の外周面に取付けられた
電極棒であり、電極棒９の先端は、複数個の内の一個の
エアー噴出孔６を通ってそのエアー噴出孔６に対応する
油噴射ノズル３に近接状に配設されている。The outer peripheral edge of the air pipe 7 projecting slightly outward from the hole of the flame holding plate 5 is covered with an annular tapered auxiliary flame holding plate 8, The inner peripheral edge of the tip of the plate 8 is in a state of being close to each of the oil injection nozzles 3. Reference numeral 9 denotes an electrode rod attached to the outer peripheral surface of the air pipe 7, and the tip of the electrode rod 9 passes through one of the plurality of air ejection holes 6 and the oil ejection corresponding to the air ejection hole 6. It is arranged close to the nozzle 3.
【００１４】しかして、本発明の低ＮＯｘ油バーナは、
油噴射ノズル３…から噴出した油滴（燃料）の燃焼時に
於て、相隣接する油噴射ノズル３，３から噴出した油滴
が相互に混合する油滴混合領域10と、相隣接する油噴射
ノズル３，３から噴出した油滴が相互に混合しない油滴
非混合領域11を形成するように構成されている。なお、
図２に於て、仮想線で示す楕円形の範囲内に油滴の噴出
状態を示し、そのうちの、楕円形が重なった部分が上記
油滴混合領域10であり、残部が上記油滴非混合領域11で
ある。Thus, the low NOx oil burner of the present invention
During the combustion of the oil droplets (fuel) ejected from the oil injection nozzles 3..., The oil droplet mixing region 10 where the oil droplets ejected from the adjacent oil injection nozzles 3 and 3 mix with each other, and the adjacent oil injection The oil droplets ejected from the nozzles 3 and 3 are configured to form an oil droplet non-mixing region 11 where they do not mix with each other. In addition,
In FIG. 2, the state of ejection of the oil droplets is shown within the range of the elliptical shape indicated by the imaginary line, of which the portion where the ellipse overlaps is the oil droplet mixing region 10 and the rest is the oil droplet non-mixing region. This is area 11.
【００１５】詳しく説明すると、図１と図２は燃焼状態
を示し、燃焼筒１内に供給された燃焼用エアーが各エア
ー噴出孔６…から外部に噴出し、かつ、支持パイプ４の
内部とノズルホルダ２の内部を通って燃料油が各油噴射
ノズル３…から霧状に噴出して燃焼している。このと
き、燃焼筒１内に供給されたエアーの一部がエアーパイ
プ７側へ分流し、ノズルホルダ２の先端外周縁を囲むよ
うにして外部へ噴出している。More specifically, FIGS. 1 and 2 show a combustion state, in which combustion air supplied into the combustion tube 1 is ejected from each air ejection hole 6. The fuel oil passes through the inside of the nozzle holder 2 and is sprayed from each oil injection nozzle 3. At this time, a part of the air supplied into the combustion tube 1 is diverted to the air pipe 7 side, and is discharged to the outside so as to surround the outer peripheral edge of the tip end of the nozzle holder 2.
【００１６】この燃焼時に於て、各油噴射ノズル３…か
ら油滴が逆円錐状に噴射されており、隣接する逆円錐状
の油滴が相互に重なって油滴濃度の濃い上記油滴混合領
域10…が形成されると共に、重ならない部分が油滴濃度
の淡い上記油滴非混合領域11…として形成され、濃淡燃
焼となっている。このとき、エアー噴出孔６…から噴出
する燃焼用エアーが油滴非混合領域11に向かって噴出し
ているため、油滴非混合領域11に於ては、燃焼用エアー
量に対する燃料量の混合割合（当量比）は小さく、か
つ、油滴混合領域10に於ては、燃焼用エアー量に対する
燃料量の混合割合（当量比）は大きくなっている。During this combustion, the oil droplets are ejected from each of the oil injection nozzles 3 in an inverted cone shape, and the adjacent inverted cone-shaped oil droplets overlap each other to mix the oil droplets having a high oil droplet concentration. Regions 10 are formed, and the non-overlapping portions are formed as the oil droplet non-mixed regions 11 having a low oil droplet concentration, resulting in light and light combustion. At this time, since the combustion air ejected from the air ejection holes 6 is ejected toward the oil droplet non-mixing region 11, the mixing of the fuel amount with the combustion air amount in the oil droplet non-mixing region 11 is performed. The ratio (equivalent ratio) is small, and the mixing ratio (equivalent ratio) of the fuel amount to the combustion air amount is large in the oil droplet mixing region 10.
【００１７】また、保炎板５の複数個のエアー噴出孔６
…を通って、燃焼筒１の先端開口部からエアーがリング
状に均一ではなく複数に分割され噴出することにより、
炎がエアーにて仕切られて分割火炎12…となっている。
さらに、噴出するエアーによって保炎板５の外面側が負
圧となり、エアーが噴出していない箇所を通って、（矢
印Ｂ，Ｃで示す如く）炉内排気ガス自己循環が火炎根元
に効率良く導かれている。Further, a plurality of air ejection holes 6 of the flame holding plate 5 are provided.
… Through the opening of the tip of the combustion cylinder 1, the air is not uniformly distributed in a ring shape but is divided into a plurality of
The flame is divided by air to form a split flame 12 ...
Further, the pressure of the outer surface of the flame holding plate 5 becomes negative due to the ejected air, and the self-circulation of the exhaust gas in the furnace is efficiently guided to the base of the flame (as shown by arrows B and C) through a portion where the air is not ejected. Has been.
【００１８】ところで、ＮＯｘの発生量は、燃料量が燃
焼用エアー量に対してある割合（当量比1.0 〜0.8 程
度）でピークとなり、この割合よりも燃料濃度が濃くて
も淡くてもＮＯｘの発生量が低下することが明らかとな
っている。本発明の低ＮＯｘ油バーナは、この原理を利
用するものであり、火炎内に燃料の濃淡箇所を意図的に
形成し、かつ、燃料濃度の淡い部分に燃焼用エアーを当
て（吹付け）、燃料濃度の濃い部分には燃焼用エアーを
当てないようにして、濃淡燃焼を生じさせ、これによっ
てＮＯｘの発生量を低減している。The amount of generated NOx peaks at a certain ratio (equivalent ratio of about 1.0 to 0.8) of the amount of fuel to the amount of combustion air, and NOx is generated regardless of whether the fuel concentration is higher or lower than this ratio. It is clear that the amount generated is reduced. The low NOx oil burner of the present invention utilizes this principle, intentionally forming a fuel density portion in a flame, and applying combustion air to a portion having a low fuel concentration (spraying). The combustion air is not applied to the portion where the fuel concentration is high, so that the lean combustion occurs, thereby reducing the generation amount of NOx.
【００１９】また、ＮＯｘの発生量を支配する大きな要
因として、火炎温度があり、高温になる程ＮＯｘ発生量
が増加することが判っている。本発明の低ＮＯｘ油バー
ナは、火炎温度を低下させるために火炎を分割火炎12…
とし、火炎表面積を増加させることによって放射冷却を
促進させ、よってＮＯｘの発生量を低減している。さら
に、炉内のバーナ周辺には、燃焼後で放射冷却及び炉壁
との接触伝熱により、火炎よりも温度の低い排気ガスが
存在しているが、本発明の低ＮＯｘ油バーナでは、この
火炎よりも温度の低い排気ガスを火炎内に取込む───
即ち、炉内排気ガス自己循環を起こす───ことによ
り、火炎温度をより一層低下させ、ＮＯｘの発生を抑制
している。It is also known that a major factor controlling the amount of generated NOx is the flame temperature, and the higher the temperature, the greater the amount of generated NOx. The low NOx oil burner of the present invention splits the flame to reduce the flame temperature.
The radiant cooling is promoted by increasing the flame surface area, thereby reducing the generation amount of NOx. Furthermore, exhaust gas having a lower temperature than the flame is present around the burner in the furnace due to radiant cooling and contact heat transfer with the furnace wall after combustion, but in the low NOx oil burner of the present invention, Intake exhaust gas with a lower temperature than the flame into the flame.
That is, by causing self-circulation of the exhaust gas in the furnace, the flame temperature is further reduced, and the generation of NOx is suppressed.
【００２０】このように、本発明の低ＮＯｘ油バーナに
よれば、濃淡燃焼、分割火炎、及び炉内排気ガス自己循
環の３つの相乗効果により、効果的にＮＯｘの発生量を
低減することができる。例えば、１時間当たり50万キロ
カロリー〜 250万キロカロリーの熱出力に於て、灯油焚
きでのＮＯｘ排出量は60ppm 以下に低減できる。また、
従来より課題であった未燃焼油滴の飛散や、燃焼室側壁
へのカーボン付着の問題は、火炎根元に導かれた炉内排
気ガスの熱により油滴の気化を促進するようにしたこ
と、及び油噴射ノズル３…を複数個（例えば４〜６個）
使用することによる油滴の微粒化により、解決すること
ができる。As described above, according to the low NOx oil burner of the present invention, it is possible to effectively reduce the amount of NOx generated by the three synergistic effects of the lean burn, the split flame, and the self-circulation of the exhaust gas in the furnace. it can. For example, at a heat output of 500,000 kcals to 2.5 million kcals per hour, NOx emissions from kerosene firing can be reduced to 60 ppm or less. Also,
The problem of scattering unburned oil droplets and attaching carbon to the side wall of the combustion chamber, which has been a problem in the past, was that the vaporization of oil droplets was promoted by the heat of the exhaust gas in the furnace guided to the base of the flame. And a plurality of oil injection nozzles 3 (for example, 4 to 6)
The problem can be solved by atomizing the oil droplets by use.
【００２１】なお、本発明は上述の実施の形態に限定さ
れず、例えば、この低ＮＯｘ油バーナは、特別な圧縮空
気（空気圧力源等）が不要な油圧噴霧方式とし、さら
に、コンパクト化のために送風機を一体化とした構造と
するも、好ましい。The present invention is not limited to the above-described embodiment. For example, this low NOx oil burner uses a hydraulic spray system that does not require a special compressed air (air pressure source or the like), and is further compact. Therefore, it is preferable to adopt a structure in which the blower is integrated.
【００２２】[0022]
【発明の効果】本発明は上述の如く構成されるので、次
に記載する効果を奏する。Since the present invention is configured as described above, the following effects can be obtained.
【００２３】（請求項１によれば）燃焼時に於て、油滴
混合領域10…と油滴非混合領域11…とが燃焼した濃淡燃
焼が生じ、これによってＮＯｘの発生量が低減する。ま
た、複数個の油噴射ノズル３…によって油滴を微粒化で
き、未燃焼油滴の飛散が減少し、燃料の無駄を無くすこ
とができる。In the combustion (according to claim 1), the combustion of the oil droplet mixing regions 10 and the oil droplet non-mixing regions 11 occurs during the concentration combustion, thereby reducing the amount of NOx generated. Further, oil droplets can be atomized by the plurality of oil injection nozzles 3..., Scattering of unburned oil droplets can be reduced, and waste of fuel can be eliminated.
【００２４】（請求項２によれば）各エアー噴出孔６…
から噴出する燃焼用エアーによって、火炎が分割火炎12
…となって火炎温度が低下し、かつ、炉内排気ガス自己
循環が生じて火炎温度が低下することによる相乗効果
で、より一層ＮＯｘの発生量が減少する。(According to claim 2) Each air ejection hole 6 ...
The flame is split by the combustion air ejected from the
.., The flame temperature decreases, and the exhaust gas self-circulation in the furnace occurs to reduce the flame temperature, so that the amount of generated NOx is further reduced.
【００２５】（請求項３によれば）燃焼時に於て、火炎
中心部の空気不足を解消すると共に、油噴射ノズル３側
へのカーボンの付着を防止することができる。According to the third aspect of the present invention, it is possible to eliminate shortage of air at the center of the flame during combustion and to prevent carbon from adhering to the oil injection nozzle 3 side.
【図１】本発明の実施の一形態を示す要部断面側面図で
ある。FIG. 1 is a cross-sectional side view of a main part showing an embodiment of the present invention.
【図２】正面側から見た燃焼状態を示す説明図である。FIG. 2 is an explanatory diagram showing a combustion state as viewed from the front side.
【図３】従来例を示す要部断面側面図である。FIG. 3 is a sectional side view of a main part showing a conventional example.
【符号の説明】 １ 燃焼筒 ２ ノズルホルダ ３ 油噴射ノズル ５ 保炎板 ６ エアー噴出孔 ７ エアーパイプ 10 油滴混合領域 11 油滴非混合領域 Ｐ 軸心 θ1 中心角度 θ2 傾斜角度1 the combustion liner 2 nozzle holder 3 oil injection nozzle 5 flame stabilizing plate 6 air injection holes 7 air pipe 10 oil droplet mixing region 11 oil droplets unmixed regions P axis theta 1 central angle theta 2 inclination angle [Description of symbols]
Claims (3)
１の該先端開口部の中心位置にノズルホルダ２を設ける
と共に、該ノズルホルダ２の先端外周縁に沿って所定中
心角度θ1 ピッチで、かつ、軸心Ｐに対して外径方向へ
所定傾斜角度θ 2 をもって、複数個の油噴射ノズル３…
を配設し、上記油噴射ノズル３…から噴出した油滴の燃
焼時に於て、相隣接する油噴射ノズル３，３から噴出し
た油滴が相互に混合する油滴混合領域10と、相隣接する
油噴射ノズル３，３から噴出した油滴が相互に混合しな
い油滴非混合領域11を形成するようにしたことを特徴と
する低ＮＯｘ油バーナ。1. A combustion tube from which air is blown out from a tip opening
Nozzle holder 2 is provided at the center of the tip opening 1
At the same time along the outer peripheral edge of the tip of the nozzle holder 2
Heart angle θ1 At the pitch and in the radial direction with respect to the axis P
Predetermined inclination angle θ Two And a plurality of oil injection nozzles 3 ...
And the fuel of the oil droplets ejected from the oil injection nozzles 3.
During firing, the oil is sprayed from adjacent oil injection nozzles 3,3
Oil droplet mixing region 10 where the oil droplets mixed with each other are adjacent to each other
Oil droplets ejected from the oil injection nozzles 3, 3 do not mix with each other.
Characterized in that a non-mixed oil droplet area 11 is formed.
Low NOx oil burner.
環状保炎板５を設け、さらに、該保炎板５に周方向に複
数個のエアー噴出孔６…を設けた請求項１記載の低ＮＯ
ｘ油バーナ。2. An annular flame holding plate 5 is provided between the combustion cylinder 1 and the nozzle holder 2, and the flame holding plate 5 is further provided with a plurality of air ejection holes 6 in a circumferential direction. Low NO described in 1
x oil burner.
ノズルホルダ２を外嵌するエアーパイプ７を設け、燃焼
筒１内に供給されたエアーが上記エアーパイプ７側に分
流してノズルホルダ２の先端外周縁を囲むように噴出す
る請求項２記載の低ＮＯｘ油バーナ。3. An air pipe 7 for externally fitting the nozzle holder 2 is provided between the flame holding plate 5 and the nozzle holder 2, and the air supplied into the combustion tube 1 is diverted to the air pipe 7 side. 3. The low NOx oil burner according to claim 2, wherein the low NOx oil burner is ejected so as to surround the outer peripheral edge of the tip of the nozzle holder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24835498A JP3535021B2 (en) | 1998-09-02 | 1998-09-02 | Low NOx oil burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24835498A JP3535021B2 (en) | 1998-09-02 | 1998-09-02 | Low NOx oil burner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000074314A true JP2000074314A (en) | 2000-03-14 |
| JP3535021B2 JP3535021B2 (en) | 2004-06-07 |
Family
ID=17176862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24835498A Expired - Lifetime JP3535021B2 (en) | 1998-09-02 | 1998-09-02 | Low NOx oil burner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3535021B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101293513B1 (en) | 2006-04-26 | 2013-08-06 | 가부시키가이샤 니뽕 에너지 겐쿠쇼 | Flame injection device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3010701U (en) | 1994-10-30 | 1995-05-09 | サンレー冷熱株式会社 | Oil burner |
-
1998
- 1998-09-02 JP JP24835498A patent/JP3535021B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101293513B1 (en) | 2006-04-26 | 2013-08-06 | 가부시키가이샤 니뽕 에너지 겐쿠쇼 | Flame injection device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3535021B2 (en) | 2004-06-07 |
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