JPH0544918A - Method of combustion control for kerosene burner in its flame transfer - Google Patents
Method of combustion control for kerosene burner in its flame transferInfo
- Publication number
- JPH0544918A JPH0544918A JP15470391A JP15470391A JPH0544918A JP H0544918 A JPH0544918 A JP H0544918A JP 15470391 A JP15470391 A JP 15470391A JP 15470391 A JP15470391 A JP 15470391A JP H0544918 A JPH0544918 A JP H0544918A
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- Japan
- Prior art keywords
- burner
- fuel
- flame
- pressure
- blow
- 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.)
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- Regulation And Control Of Combustion (AREA)
- Feeding And Controlling Fuel (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は石油燃焼装置における火
移り時の燃焼制御方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combustion control method for a petroleum combustion apparatus when a fire is transferred.
【０００２】[0002]
【従来の技術】従来、複数個のバーナを備えて、低燃焼
時には１個のバーナを燃焼させ、高燃焼時には複数個の
バーナを燃焼させることにより、発熱量を調整できるよ
うにした石油燃焼装置があり、燃焼バーナ数を増加させ
るための未点火バーナの点火は、点火済のバーナから隣
接した未点火バーナへの火移りによって行われるように
したものがある。2. Description of the Related Art Conventionally, an oil combustion apparatus having a plurality of burners and capable of adjusting a calorific value by burning one burner during low combustion and burning a plurality of burners during high combustion In some cases, ignition of an unburned burner for increasing the number of combustion burners is performed by transfer of a fire from an ignited burner to an adjacent unburned burner.
【０００３】そして、上記火移り時の燃焼不良或いは振
動燃焼を防止するために、実開昭５３−１０８６４０号
公報に記載された考案がなされている。In order to prevent the above-mentioned combustion failure or oscillatory combustion at the time of fire transfer, the invention described in Japanese Utility Model Laid-Open No. 53-108640 has been devised.
【０００４】この考案は、一方のバーナしか燃焼してい
ない低燃焼時にも燃料油を循環加熱することによって、
火移り時に未点火バーナに送給される燃料油を余熱し
て、良好な燃焼をはかったものである。The present invention circulates and heats the fuel oil even during low combustion in which only one burner burns,
The fuel oil sent to the unignited burner at the time of fire transfer was preheated to achieve good combustion.
【０００５】[0005]
【発明が解決しようとする課題】ところが、上記火移り
時に、未点火バーナの噴射ノズルから急激に多量の燃料
油が噴射されると、未点火バーナが爆発的に着火して、
爆発音、黒煙や炎の噴出、燃焼の不安定等が発生して危
険であるという問題がある。However, when a large amount of fuel oil is suddenly injected from the injection nozzle of the unignited burner during the above-mentioned fire transfer, the unignited burner explosively ignites,
There is a problem that explosion sounds, black smoke and flames, combustion instability, etc. are dangerous.
【０００６】また、前記の実開昭５３−１０８６４０号
公報の考案でも、未点火バーナへの燃料油量の制御が行
われていないため、燃焼不良や振動燃焼を防止すること
はできるが、爆発的着火の防止の効果を有していない。Also, in the device disclosed in Japanese Utility Model Laid-Open No. 53-108640, since the amount of fuel oil to the unignited burner is not controlled, it is possible to prevent combustion failure and oscillatory combustion, but it is an explosion. It does not have the effect of preventing static ignition.
【０００７】[0007]
【課題を解決するための手段】この発明では、各々燃料
噴射ノズルを装着した複数個のバーナを備えて、点火済
みバーナからの火移りによって未点火バーナに点火する
ようにした石油燃焼装置において、火移り動作時に、未
点火バーナ側燃料噴射ノズルの燃料噴射圧力及び／又は
噴射量を減少させることを特徴とする石油燃焼装置にお
ける火移り時の燃焼制御方法を提供せんとするものであ
る。According to the present invention, there is provided a plurality of burners each equipped with a fuel injection nozzle, and an unburned burner is ignited by a fire transfer from an ignited burner, It is intended to provide a combustion control method at the time of fire transfer in an oil combustion apparatus, which is characterized in that the fuel injection pressure and / or the injection amount of the unignited burner side fuel injection nozzle is reduced during the fire transfer operation.
【０００８】[0008]
【実施例】本発明の実施例を図面を参照して説明する。Embodiments of the present invention will be described with reference to the drawings.
【０００９】図１は、本発明に係る火移り時の燃焼制御
方法を具備した石油式給湯機Ａの構成を示し、同給湯機
Ａはケーシング10内に配設した熱交換部11と、同熱交換
部11の上端に接続した石油燃焼装置B1と、石油燃焼装置
B1に送気筒12を介して接続した送気ファン13と、熱交換
部11の下端に接続した排気ダクト14とで構成されてい
る。15は入水口、16は出湯口、17は加熱管である。FIG. 1 shows the construction of a petroleum water heater A equipped with a combustion control method during a fire transfer according to the present invention. The water heater A has a heat exchange section 11 arranged in a casing 10, An oil combustion device B1 connected to the upper end of the heat exchange section 11 and an oil combustion device
An air supply fan 13 connected to B1 via a cylinder 12 and an exhaust duct 14 connected to the lower end of the heat exchange section 11. Reference numeral 15 is a water inlet, 16 is a hot water outlet, and 17 is a heating tube.
【００１０】石油燃焼装置B1は、図２及び図３に示すよ
うに、併設状態に配設した第１、第２バーナb1，b2で構
成されている。As shown in FIGS. 2 and 3, the oil burning device B1 is composed of first and second burners b1 and b2 arranged side by side.
【００１１】第１バーナb1は、熱交換部11の上部開口に
取付けた燃焼筒23の内部に、上面閉塞下面開放の外筒21
と、上下面開放の内筒22と、多数の空気流入孔27を形成
したスタビライザ25とを同心円状に配設して燃焼室24を
形成し、外筒21の上面に第１燃料噴射ノズルN1を装着
し、同ノズルN1の先端に近接して点火プラグ26の電極28
を配設している。The first burner b1 has an outer cylinder 21 with an upper surface closed and a lower surface opened inside a combustion cylinder 23 attached to the upper opening of the heat exchange section 11.
And an inner cylinder 22 open on the upper and lower surfaces and a stabilizer 25 having a large number of air inflow holes 27 arranged concentrically to form a combustion chamber 24, and a first fuel injection nozzle N1 is formed on the upper surface of the outer cylinder 21. And place the electrode 28 of the spark plug 26 in close proximity to the tip of the nozzle N1.
Are installed.
【００１２】第２バーナb2は、第１バーナb1と略同一構
成であるが、点火プラグ26が設けられていない点で第１
バーナb1と異なる。The second burner b2 has substantially the same structure as the first burner b1 except that the first burner b2 is not provided with the ignition plug 26.
Different from burner b1.
【００１３】また、第１バーナb1と第２バーナb2との間
に火炎通路29を形成して、火炎が同通路29を通って第１
バーナb1から第２バーナb2に流通できるようにしてい
る。Further, a flame passage 29 is formed between the first burner b1 and the second burner b2, and the flame passes through the passage 29 to form a first flame.
The burner b1 can be distributed to the second burner b2.
【００１４】上記構成によって、送気ファン13によって
生起した燃焼風を、送気筒12を介して第１及び第２バー
ナb1，b2の燃焼室24、24に流入させ、燃料噴射ノズルN
1，N2から燃料油を噴射させ、点火プラグ26の電極28に
火花を発生させて第１バーナb1に点火することができ、
更に、前記の火炎通路29を介し、第１バーナb1から第２
バーナb2への火移りによって、第２バーナb2に点火する
ことができる。With the above structure, the combustion air generated by the air supply fan 13 is caused to flow into the combustion chambers 24, 24 of the first and second burners b1, b2 through the cylinder 12 and the fuel injection nozzle N
1, it is possible to inject fuel oil from N2, generate a spark on the electrode 28 of the spark plug 26, and ignite the first burner b1.
Further, through the flame passage 29, the first burner b1 to the second burner b1
The second burner b2 can be ignited by the transfer of heat to the burner b2.
【００１５】図４は、燃料系統Ｃの概念的構成を示して
おり、燃料油を充填したタンクＴに電磁ポンプＰを接続
し、同ポンプＰに油管Ｓを介して第１電磁弁V1と第２電
磁弁V2とを並列状に接続し、各電磁弁V1、V2に、それぞ
れ燃料噴射ノズルN1と第２燃料噴射ノズルN2とを接続し
ている。FIG. 4 shows a conceptual structure of the fuel system C. An electromagnetic pump P is connected to a tank T filled with fuel oil, and the first electromagnetic valve V1 and the first electromagnetic valve V1 are connected to the pump P via an oil pipe S. The two solenoid valves V2 are connected in parallel, and the solenoid valves V1 and V2 are connected to the fuel injection nozzle N1 and the second fuel injection nozzle N2, respectively.
【００１６】Ｍは上記電磁ポンプＰ及び各電磁弁V1、V2
等と接続した制御部である。M is the above electromagnetic pump P and each solenoid valve V1, V2
Etc. is a control unit connected to.
【００１７】電磁ポンプＰは、制御部Ｍからの交流駆動
電流によって駆動されるプランジャによって、タンクＴ
からの燃料油を燃料噴射ノズルに向けて吐出するように
構成されており、したがって、上記交流駆動電圧を昇降
させることで、吐出圧及び吐出量を増減させることがで
きるものである。また、同ポンプＰは吐出圧の脈動を吸
収するためのアキュムレータを備えている。The electromagnetic pump P is driven by a plunger driven by an AC driving current from the control unit M, and the tank T
Is configured to be discharged toward the fuel injection nozzle, and therefore, the discharge pressure and the discharge amount can be increased / decreased by raising / lowering the AC drive voltage. Further, the pump P includes an accumulator for absorbing the pulsation of the discharge pressure.
【００１８】第１、第２電磁弁V1、V2は同一構成であ
り、それぞれ内蔵したソレノイドに、制御部Ｍからの制
御電流をＯＮ・ＯＦＦすることによって、燃料油の流通
を開閉するものである。The first and second solenoid valves V1 and V2 have the same structure, and the solenoids built therein are opened and closed by turning on and off the control current from the control unit M to open and close the flow of fuel oil. .
【００１９】かかる石油式給湯機Ａにおいて、石油燃焼
装置B1に点火するには、送気ファン13を駆動してバーナ
部B1に送気しておき、電磁ポンプＰを交流電圧で駆動
し、第１電磁弁V1を開弁して第１燃料噴射ノズルN1から
燃料油を第１バーナの燃焼室24に噴出させ、点火プラグ
26によって第１バーナb1に点火する。In the oil type hot water supply apparatus A, in order to ignite the oil combustion apparatus B1, the air supply fan 13 is driven to supply air to the burner section B1, and the electromagnetic pump P is driven by an alternating voltage to 1 solenoid valve V1 is opened to inject fuel oil from the first fuel injection nozzle N1 into the combustion chamber 24 of the first burner, and the spark plug
The first burner b1 is ignited by 26.
【００２０】そして、第２バーナb2の点火は火移りによ
って行われる。すなわち、第２電磁弁V2を開弁して第２
燃料噴射ノズルN2から燃料油を第２バーナの燃焼室24に
噴出させると、第１バーナb1の火炎が火炎通路29を通っ
て第２バーナb2中に噴出した燃料油に点火する。The ignition of the second burner b2 is performed by a fire transfer. That is, the second solenoid valve V2 is opened and the second
When fuel oil is ejected from the fuel injection nozzle N2 into the combustion chamber 24 of the second burner, the flame of the first burner b1 ignites the fuel oil ejected into the second burner b2 through the flame passage 29.
【００２１】また、バーナ部B1の要求発熱量が小さい時
には、第１電磁弁V1だけ開弁して第１バーナb1を点火
し、電磁ポンプＰの交流駆動電圧を調整することによっ
て、第１燃料噴射ノズルN1の燃料噴射量を調整して発熱
量の調整を行う。When the required heating value of the burner section B1 is small, only the first solenoid valve V1 is opened to ignite the first burner b1 and the AC drive voltage of the solenoid pump P is adjusted to adjust the first fuel. The heat generation amount is adjusted by adjusting the fuel injection amount of the injection nozzle N1.
【００２２】そして、第１バーナb1の最大発熱量を越え
てバーナ部B1の発熱量を増加させるときは、第２電磁弁
V2を開弁して第２燃料噴射ノズルN2にも燃料を送給し、
第１バーナb1から第２バーナb2へ火移りさせて、両方の
バーナb1、b2で燃焼をおこなわせるようにしている。When the calorific value of the burner section B1 is increased beyond the maximum calorific value of the first burner b1, the second solenoid valve is used.
Open V2 to send fuel to the second fuel injection nozzle N2,
The flame is transferred from the first burner b1 to the second burner b2 so that both burners b1 and b2 burn.
【００２３】本発明の要旨は、上記した第１バーナb1か
ら第２バーナb2への火移りの際に、第２燃料噴射ノズル
N2への燃料送給を制御して、第１バーナb2の爆発的着火
を防止することにある。The gist of the present invention is that the second fuel injection nozzle is used when the above-mentioned fire transfer from the first burner b1 to the second burner b2 occurs.
The purpose is to control the fuel supply to N2 to prevent the explosive ignition of the first burner b2.
【００２４】すなわち、図５のタイミングチャートで示
すように、火移りを行わせる際には、電磁ポンプＰの駆
動電圧を通常の電圧VNから低電圧VLに低下させ、所定時
間T1が経過して、第２燃料噴射ノズルN2への燃料油の圧
力が通常圧力PNから低圧力PLに降下するのを待って、第
２電磁弁V2を開弁する。そのため、燃料油は第２燃料噴
射ノズルN2から第２バーナb2の燃焼室24中に、通常圧力
PNよりも低圧力PLで第２バーナb2中に噴射されることに
なる。That is, as shown in the timing chart of FIG. 5, when the fire transfer is performed, the drive voltage of the electromagnetic pump P is reduced from the normal voltage VN to the low voltage VL, and a predetermined time T1 has passed. The second solenoid valve V2 is opened after waiting for the pressure of the fuel oil to the second fuel injection nozzle N2 to drop from the normal pressure PN to the low pressure PL. Therefore, the fuel oil flows from the second fuel injection nozzle N2 into the combustion chamber 24 of the second burner b2 at the normal pressure.
It will be injected into the second burner b2 at a pressure PL lower than PN.
【００２５】このように燃料噴射圧力を低圧力PLにする
ことによって、第２バーナb2内に噴射される燃料油の量
が少なくなって、その発熱量が小さくなることから、爆
発的着火が防止され、爆発音、黒煙や炎の噴出等の危険
及び不具合を防止することができる。By setting the fuel injection pressure to the low pressure PL in this way, the amount of fuel oil injected into the second burner b2 is reduced and the calorific value is reduced, so that explosive ignition is prevented. Therefore, it is possible to prevent danger and trouble such as explosion sound, black smoke, and jet of flame.
【００２６】そして、所定時間T2が経過して燃焼が安定
すると、電磁ポンプＰの駆動電圧を次第に通常電圧PNに
戻して、第２燃料噴射ノズルN2への燃料油の圧力を通常
圧力PNに戻し、第２バーナb2に通常の燃焼をおこなわせ
ることにより、火移りによる第２バーナb2の点火を終了
する。When the combustion is stabilized after the elapse of the predetermined time T2, the drive voltage of the electromagnetic pump P is gradually returned to the normal voltage PN, and the pressure of the fuel oil to the second fuel injection nozzle N2 is returned to the normal pressure PN. By causing the second burner b2 to perform normal combustion, the ignition of the second burner b2 due to the fire transfer is terminated.
【００２７】また、図６に、第１バーナb1側に、流量調
整弁VFで戻り油量を調整することによって燃料噴射量を
調整可能とした燃料噴射ノズルN3を用いた石油燃焼装置
B2を示しており、かかる石油燃焼装置B2に本発明を実施
した場合にも、前記実施例と同様の効果を奏する。Further, in FIG. 6, an oil combustion apparatus using a fuel injection nozzle N3 in which the fuel injection amount can be adjusted on the first burner b1 side by adjusting the return oil amount by the flow rate adjusting valve VF.
B2 is shown, and even when the present invention is applied to such an oil combustion apparatus B2, the same effect as that of the above-mentioned embodiment is obtained.
【００２８】[0028]
【発明の効果】この発明によれば、点火済みバーナから
の火移りによって未点火バーナに点火するようにした石
油燃焼装置において、火移り動作時に、未点火バーナ側
燃料噴射ノズルの噴射圧力及び／又は噴射量を減少させ
て、火移り時の発熱量の急激な増加を防止することによ
り、爆発的着火を防止して、爆発音、火炎や黒煙の噴出
等の危険を防止することができる。According to the present invention, in the petroleum combustion apparatus in which the unburned burner is ignited by the transfer of the fire from the ignited burner, the injection pressure of the unignited burner side fuel injection nozzle and / or Or, by reducing the injection amount to prevent a sudden increase in the amount of heat generated during a fire transfer, it is possible to prevent explosive ignition and prevent dangers such as explosion sound, flames, and the emission of black smoke. .
【図１】本発明に係る火移り時の燃焼制御方法を具備し
た石油式給湯機の全体説明図。FIG. 1 is an overall explanatory view of a petroleum water heater equipped with a combustion control method during a fire transfer according to the present invention.
【図２】石油燃焼装置の正面断面説明図。FIG. 2 is a front cross-sectional explanatory view of an oil combustion device.
【図３】図２のＩ−Ｉ線断面図。FIG. 3 is a sectional view taken along line I-I of FIG.
【図４】燃料系統の概念的構成を示す説明図。FIG. 4 is an explanatory diagram showing a conceptual configuration of a fuel system.
【図５】火移り時のタイミングチャート。FIG. 5 is a timing chart at the time of fire transfer.
【図６】他実施例燃料系統の概念的構成を示す説明図。FIG. 6 is an explanatory diagram showing a conceptual configuration of a fuel system of another embodiment.
B1、B2 石油燃焼装置 b1、b2 バーナ N1、N2 燃料噴射ノズル B1, B2 Oil combustion device b1, b2 Burner N1, N2 Fuel injection nozzle
───────────────────────────────────────────────────── フロントページの続き (72)発明者 安永 繁文 兵庫県神戸市東灘区魚崎浜町４番１号 日 本ユプロ株式会社内 (72)発明者 藤原 善治 兵庫県神戸市東灘区魚崎浜町４番１号 日 本ユプロ株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shigefumi Yasunaga 4-1, Uozakihama-cho, Higashinada-ku, Kobe-shi, Hyogo Nihon Yupro Co., Ltd. Issue Nihon Yupro Co., Ltd.
Claims (1)
バーナを備えて、点火済みバーナからの火移りによって
未点火バーナに点火するようにした石油燃焼装置におい
て、 火移り動作時に、未点火バーナ側燃料噴射ノズルの燃料
噴射圧力及び／又は噴射量を減少させることを特徴とす
る石油燃焼装置における火移り時の燃焼制御方法。1. An oil combustion apparatus comprising a plurality of burners each equipped with a fuel injection nozzle so that an unfired burner is ignited by a fire transfer from an ignited burner. A combustion control method at the time of a fire transfer in an oil combustion apparatus, characterized in that the fuel injection pressure and / or the injection amount of the side fuel injection nozzle is reduced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15470391A JPH0544918A (en) | 1991-06-26 | 1991-06-26 | Method of combustion control for kerosene burner in its flame transfer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15470391A JPH0544918A (en) | 1991-06-26 | 1991-06-26 | Method of combustion control for kerosene burner in its flame transfer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0544918A true JPH0544918A (en) | 1993-02-23 |
Family
ID=15590111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15470391A Pending JPH0544918A (en) | 1991-06-26 | 1991-06-26 | Method of combustion control for kerosene burner in its flame transfer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0544918A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5867473A (en) * | 1995-03-05 | 1999-02-02 | Nakamichi Corporation | Disk playback with clamping mechanism and misalignment detector |
| US6097693A (en) * | 1997-04-17 | 2000-08-01 | Nakamichi Corporation | Clamping mechanism for a disk playback device including a pivotable clamp arm |
-
1991
- 1991-06-26 JP JP15470391A patent/JPH0544918A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5867473A (en) * | 1995-03-05 | 1999-02-02 | Nakamichi Corporation | Disk playback with clamping mechanism and misalignment detector |
| US6097693A (en) * | 1997-04-17 | 2000-08-01 | Nakamichi Corporation | Clamping mechanism for a disk playback device including a pivotable clamp arm |
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