JP5053877B2

JP5053877B2 - Combustion device

Info

Publication number: JP5053877B2
Application number: JP2008017094A
Authority: JP
Inventors: 明長谷川; 和博中澤; 順也綿貫; 寿英鈴木
Original assignee: Corona Corp
Current assignee: Corona Corp
Priority date: 2008-01-29
Filing date: 2008-01-29
Publication date: 2012-10-24
Anticipated expiration: 2028-01-29
Also published as: JP2009180380A

Description

この発明は、貯湯タンプの石油給湯機や石油給湯風呂装置等の燃焼装置に関するものである。 The present invention relates to a combustion apparatus such as an oil water heater or an oil hot water bath apparatus for a hot water storage tank.

従来よりこの種のものでは、内胴と外胴を貫通した取付口部を設け、ここにガンタイプバーナを燃焼室底部に先端部を向けて下向きに傾斜させて取り付けることで、後垂れした燃料が器具がいに漏れ出すのを防止するものであった。（例えば、特許文献１参照。）
特許第２８８９８０４号公報 Conventionally, this type has a mounting port that penetrates the inner and outer cylinders, and a gun-type burner is attached to the bottom of the combustion chamber with the tip facing down and attached, so that the fuel that droops back Prevents the device from leaking out. (For example, refer to Patent Document 1.)
Japanese Patent No. 2889804

ところでこの従来のものでは、ガンタイプバーナが下向きに傾斜して取り付けられている関係で、ガンタイプバーナ先端近くの火炎の一部が巻かれ、取付口部と内胴との溶接部分が高温に加熱されると、腐蝕しやすく水漏れの危険を有するものであった。
又近年では、内胴と外胴と取付口部の３部品を重ねて同時に溶接する構成となっていることから、加熱による水漏れの危険性が増大しているものである。 By the way, in this conventional type, a part of the flame near the tip of the gun type burner is wound, and the welded part between the mounting opening and the inner body is heated to a high temperature because the gun type burner is inclined downward. When heated, it was easily corroded and had a risk of water leakage.
Further, in recent years, the three parts of the inner cylinder, the outer cylinder, and the mounting opening are overlapped and welded at the same time, so that the risk of water leakage due to heating increases.

この発明はこの点に着目し上記欠点を解決する為、特にその構成を、内方に燃焼室を形成した内胴と、この内胴との間に貯湯室を形成した外胴と、内胴と外胴とを重合させて開口して形成した１つの取付口部と、この取付口部に取り付けられ燃焼室に臨むガンタイプバーナと、このガンタイプバーナに燃焼空気を供給する送風機とを備え、ガンタイプバーナは、バーナチューブと、このバーナチューブの基端部に備えられた取付板と、バーナチューブ内に収納され周壁に複数の空気孔を有した内筒と、この内筒内に収納された燃料噴霧用のノズルと、内筒底部を覆い前記ノズル及び空気孔に、送風機からの燃焼空気を案内する風胴とから構成されたものに於いて、前記風胴が固着された取付板には、燃焼空気の一部をバーナチューブ外周と取付口部との間を流通させて燃焼室に供給する複数の供給孔を設けたものである。 This invention pays attention to this point and solves the above-mentioned drawbacks. In particular, the structure is composed of an inner cylinder having a combustion chamber formed therein, an outer cylinder having a hot water storage chamber formed between the inner cylinder, and an inner cylinder. A mounting opening formed by superposing the outer cylinder and the outer body, a gun type burner attached to the mounting opening facing the combustion chamber, and a blower for supplying combustion air to the gun type burner The gun-type burner includes a burner tube, a mounting plate provided at the base end of the burner tube, an inner cylinder housed in the burner tube and having a plurality of air holes in the peripheral wall, and housed in the inner cylinder. A mounting plate to which the wind tunnel is fixed, comprising a nozzle for fuel spraying, and a wind tunnel that covers the bottom of the inner cylinder and guides combustion air from the blower to the nozzle and the air hole. to a portion of the combustion air intake and the burner tube periphery By flowing between the mouth portion is provided with a plurality of supply holes for supplying to the combustion chamber.

この発明によれば、取付板の供給孔から供給される空気によって、ガンタイプバーナ先端近くの火炎の巻き込みが阻止されると共に、この供給される空気はその前に内胴と外胴と取付口部の３部品の溶接部分を確実に冷却するので、この供給孔からの空気の巻き込み阻止と冷却の２つの作用によって、溶接部分の腐蝕による水漏れを確実に防止出来、長期に渡って安心して使用出来るものである。 According to the present invention, the air supplied from the supply hole of the mounting plate prevents the flame near the tip of the gun type burner from entraining, and the supplied air is sent before the inner cylinder, the outer cylinder and the mounting port. Because the welded parts of the three parts are reliably cooled, water leakage due to corrosion of the welded parts can be surely prevented by the two actions of preventing air entrainment from the supply holes and cooling, and it is safe for a long time. It can be used.

次にこの発明の一実施形態を図示した燃焼装置に基づいて説明する。
１は貯湯缶体で、内方に凹凸状の補強を施した燃焼室２を形成した内胴３と、この内胴３との間に貯湯室４を形成した外胴５とで構成され、底部には耐熱材６を載置した支持台７が設けられており、燃焼室２上面には複数の熱交換パイプ８が連通されている。 Next, an embodiment of the present invention will be described based on the illustrated combustion apparatus.
Reference numeral 1 denotes a hot water storage can body, which is composed of an inner cylinder 3 in which a combustion chamber 2 with concavo-convex reinforcement is formed, and an outer cylinder 5 in which a hot water storage chamber 4 is formed between the inner cylinder 3 and A support base 7 on which a heat-resistant material 6 is placed is provided at the bottom, and a plurality of heat exchange pipes 8 communicate with the upper surface of the combustion chamber 2.

９は内胴３と外胴５の下部を重合し燃焼室２に連通した開口で、筒状で燃焼室２下部に向かって下向きに傾斜して取付口部１０が取り付けられており、この取付口部１０は内胴３と外胴５と共に３部品が重合した状態で、溶接され溶接部分１１が開口９に露呈しているものである。 Reference numeral 9 denotes an opening that overlaps the lower portions of the inner cylinder 3 and the outer cylinder 5 and communicates with the combustion chamber 2, and has a cylindrical shape and is attached with an attachment port 10 inclined downward toward the lower portion of the combustion chamber 2. The mouth portion 10 is welded in a state where three parts are superposed together with the inner body 3 and the outer body 5, and the welded portion 11 is exposed to the opening 9.

１２は前記取付口部１０に取り付けられたガンタイプバーナで、外周を構成する筒状のバーナチューブ１３と、該バーナチューブ１３の基端部に備えられ取付口部１０の端部にねじ止めされる取付板１４と、バーナチューブ１３内に収納され周壁に複数の空気孔１５を有した内筒１６と、この内筒１６内に収納された燃料噴霧用のノズル１７と、このノズル１７前方に備えられ燃料と燃焼空気の旋回風を形成するスタビライザー１８と、内筒１６底部を覆い前記ノズル１７及び空気孔１５に、送風機１９からの燃焼空気を案内する四角柱状の風胴２０とから構成されている。 Reference numeral 12 denotes a gun type burner attached to the attachment port 10, which is provided at the base end portion of the cylindrical burner tube 13 constituting the outer periphery, and is screwed to the end portion of the attachment port portion 10. Mounting plate 14, inner cylinder 16 accommodated in burner tube 13 and having a plurality of air holes 15 in the peripheral wall, fuel spray nozzle 17 accommodated in inner cylinder 16, and forward of nozzle 17. A stabilizer 18 provided to form a swirling air of fuel and combustion air, and a square columnar wind tunnel 20 that covers the bottom of the inner cylinder 16 and guides combustion air from the blower 19 to the nozzle 17 and the air hole 15. ing.

２１は前記取付板１４で風胴２０の四隅と対向する位置に２個ずつ形成された供給孔で、送風機１９からの燃焼空気の一部を、バーナチューブ１３外周と取付口部１０との間を流通させて、溶接部分１１を冷却すると共に、冷却後の送風によりガンタイプバーナ１２の先端部分に形成される巻き込み火炎Ａを吹き飛ばして、溶接部分１１の加熱による腐蝕を防止するものである。 Reference numeral 21 denotes a supply hole formed in the mounting plate 14 at two positions facing the four corners of the wind tunnel 20, and a part of the combustion air from the blower 19 is passed between the outer periphery of the burner tube 13 and the mounting opening 10. And the welded part 11 is cooled, and the entrained flame A formed at the tip part of the gun type burner 12 is blown off by the air after cooling to prevent the welded part 11 from being corroded by heating.

２２はノズル１７の下方から該ノズル１７前方に位置した点火電極で、放電用のイグナイタ２３と電気的に接続されている。２４はノズル１７に燃料の灯油を供給する為の送油経路である。 An ignition electrode 22 is located in front of the nozzle 17 from below the nozzle 17 and is electrically connected to the igniter 23 for discharge. Reference numeral 24 denotes an oil supply path for supplying fuel kerosene to the nozzle 17.

次にこの一実施形態の作動について説明すれば、今貯湯缶体１内の湯水の温度が所定温度以下になってことを検知すると、ガンタイプバーナ１２の燃焼が開始されるものであり、この燃焼は、電磁ポンプ（図示せず）から圧送された燃料をノズル１７で噴霧すると共に、送風機１９から燃焼空気が供給されて、点火電極２２の放電で着火され、スタビライザー１８で混合気が旋回流となり、内筒１６の空気孔１５から供給される燃焼空気を混合しながら燃焼室２下方に向かう火炎が形成される。 Next, the operation of this embodiment will be described. When it is detected that the temperature of the hot water in the hot water storage can 1 is below a predetermined temperature, combustion of the gun type burner 12 is started. In the combustion, fuel pumped from an electromagnetic pump (not shown) is sprayed by the nozzle 17 and combustion air is supplied from the blower 19 and ignited by the discharge of the ignition electrode 22. The air-fuel mixture is swirled by the stabilizer 18. Thus, a flame is formed toward the lower side of the combustion chamber 2 while mixing the combustion air supplied from the air hole 15 of the inner cylinder 16.

そしてこの火炎の燃焼ガスは、燃焼室２から熱交換パイプ８を通り貯湯されている湯水と熱交換することにより、貯湯湯水を加熱して所定温度まで昇温することで、一旦消火し再び温度低下すれば燃焼を開始して、貯湯湯水を常に所定温度に保持するものであり、給湯要求があれば随時良好な給湯を行うものである。 Then, the combustion gas of this flame exchanges heat with the hot water stored in the hot water through the heat exchange pipe 8 from the combustion chamber 2 to heat the hot water and raise the temperature to a predetermined temperature. If the temperature falls, combustion is started and the hot water is always kept at a predetermined temperature. When there is a hot water supply request, good hot water is supplied as needed.

一方このガンタイプバーナ１２の燃焼時には、送風機１９からの燃焼空気の一部が、取付板１４に形成された供給孔２１から放出され、バーナチューブ１３外周と取付口部１０との間を流通して、先ず溶接部分１１を冷却すると共に、冷却後の送風はガンタイプバーナ１２の先端部分に形成される巻き込み火炎Ａを吹き飛ばして、溶接部分１１の加熱による腐蝕を防止するものであり、これにより溶接部分１１からの水漏れを確実に防止することが出来、長期に渡って安心して使用出来るものである。 On the other hand, at the time of combustion of the gun type burner 12, a part of the combustion air from the blower 19 is discharged from the supply hole 21 formed in the mounting plate 14 and flows between the outer periphery of the burner tube 13 and the mounting opening 10. First, the welded part 11 is cooled, and the blown air after cooling blows off the entraining flame A formed at the tip part of the gun type burner 12 to prevent corrosion due to heating of the welded part 11. Water leakage from the welded part 11 can be surely prevented and can be used with confidence over a long period of time.

この発明の一実施形態を示す燃焼装置の概略説明図。BRIEF DESCRIPTION OF THE DRAWINGS Schematic explanatory drawing of the combustion apparatus which shows one Embodiment of this invention. 同ガンタイプバーナの正面図。Front view of the gun type burner.

Explanation of symbols

１貯湯缶体
２燃焼室
３内胴
４貯湯室
５外胴
１０取付口部
１２ガンタイプバーナ
１３バーナチューブ
１４取付板
１５空気孔
１６内筒
１７ノズル
１９送風機
２０風胴
２１供給孔 DESCRIPTION OF SYMBOLS 1 Hot water storage can body 2 Combustion chamber 3 Inner trunk 4 Hot water storage chamber 5 Outer trunk 10 Attachment port part 12 Gun type burner 13 Burner tube 14 Mounting plate 15 Air hole 16 Inner cylinder 17 Nozzle 19 Blower 20 Wind tunnel 21 Supply hole

Claims

An inner cylinder in which a combustion chamber is formed inward, an outer cylinder in which a hot water storage chamber is formed between the inner cylinder, one attachment port formed by opening the inner cylinder and the outer cylinder, and A gun-type burner that is attached to the mounting opening and faces the combustion chamber, and a blower that supplies combustion air to the gun-type burner. The gun-type burner is provided at the burner tube and at the base end of the burner tube. A mounting plate, an inner cylinder housed in the burner tube and having a plurality of air holes in the peripheral wall, a fuel spray nozzle housed in the inner cylinder, and covering the bottom of the inner cylinder to the nozzle and air hole And a wind tunnel for guiding the combustion air from the blower, the mounting plate to which the wind tunnel is fixed has a part of the combustion air between the outer periphery of the burner tube and the mounting opening. be provided with a plurality of supply holes for supplying to the combustion chamber is circulated Combustion apparatus according to claim.