JPS61140721A - Controller for liquid fuel combustion device - Google Patents

Controller for liquid fuel combustion device

Info

Publication number
JPS61140721A
JPS61140721A JP59262118A JP26211884A JPS61140721A JP S61140721 A JPS61140721 A JP S61140721A JP 59262118 A JP59262118 A JP 59262118A JP 26211884 A JP26211884 A JP 26211884A JP S61140721 A JPS61140721 A JP S61140721A
Authority
JP
Japan
Prior art keywords
ignition
fuel
heater
section
controller
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.)
Pending
Application number
JP59262118A
Other languages
Japanese (ja)
Inventor
Keiichi Mori
慶一 森
Akihiko Nakajima
昭彦 中島
Shiro Takeshita
竹下　志郎
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP59262118A priority Critical patent/JPS61140721A/en
Publication of JPS61140721A publication Critical patent/JPS61140721A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/20—Systems for controlling combustion with a time programme acting through electrical means, e.g. using time-delay relays
    • F23N5/203—Systems for controlling combustion with a time programme acting through electrical means, e.g. using time-delay relays using electronic means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2227/00—Ignition or checking
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2229/00—Flame sensors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2233/00—Ventilators
    • F23N2233/06—Ventilators at the air intake
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2235/00—Valves, nozzles or pumps
    • F23N2235/12—Fuel valves

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Combustion (AREA)

Abstract

PURPOSE:To provide a liquid fuel combustion device which always has a superior ignition characteristic and does not produce any odor or CO when ignited by a method wherein a controller for use in controlling ignition or diminishing at a burner part, an ignition sensor part for sensing an ignition of the burner and a post-heating part for operating an ignition heater for a specified period of time when an operation switch is turned on are provided. CONSTITUTION:An ignition heater 8 is energized in simultaneous with a turned ON of an operation switch 13 and preset for a specified period of time. Upon completion of the preheating operation, a fuel valve 19 and a combustion fan 6 are operated, both fuel and air are supplied to the combustion chamber 9 and they are ignited by an ignition heater 8. When the ignition is detected by the flame sensor 10, the ignition heater 8 is deenergized and a normal combustion is performed. When the operation switch 13 is turned OFF, soot or tar or the like adhered around the ignition heater 8 is cleaned under an operation of the post-heating function for use in energizing the ignition heater 8, so that a positive ignition can be performed even with heavy quantity oil such as keroscene or the like and poor keroscene.

Description

【発明の詳細な説明】 産業上の利用分野 本発明は液体燃料燃焼器のコントローラにおける燃焼制
御シーケンスに関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a combustion control sequence in a controller for a liquid fuel combustor.

従来の技術 従来、この種の燃焼器のコントローラは第４図に示すよ
うに運転スイッチ１ｆ：オンにすると同時に点火器２、
燃料弁３、送風ファン４を駆動し、火炎センサ６の着火
入力により点火器２を停止して燃焼を継続し、運転スイ
ッチ１をオフにすると燃料弁３を停止し火炎を消火後一
定時間送風ファン４を運転するポストパージ機能を有す
るという制御シーケンスがある。（実開昭４９−２０６
７４号公報） 発明が解、決しようとする問題点 しかし、上記のようなシーケンスでは、燃料が軽油等の
重質油を燃焼させた場合にタールやヌヌが点火器近傍に
付着し、点火しにくくなり不着火現象等の原因となる。BACKGROUND OF THE INVENTION Conventionally, as shown in FIG. 4, a controller for this type of combustor turns on the operation switch 1f, and at the same time turns on the igniter 2,
The fuel valve 3 and the blower fan 4 are driven, and when the ignition input from the flame sensor 6 is received, the igniter 2 is stopped to continue combustion. When the operation switch 1 is turned off, the fuel valve 3 is stopped and the flame is extinguished and air is blown for a certain period of time. There is a control sequence that has a post-purge function that operates the fan 4. (Jitsukai 49-206
However, in the above sequence, when heavy oil such as light oil is burned as fuel, tar and lint adhere to the vicinity of the igniter, causing ignition. This may cause a non-ignition phenomenon.

また、燃焼停止時に燃料の後ダレが発生し、こ３ベー、
・ の燃料がバーナ内に溜り再運転時初期に燃えるため臭気
や一酸化炭素（ＣＯ）発生の原因となるという問題点を
有していた。In addition, fuel drips when combustion stops, resulting in three barrels.
- The problem was that the fuel accumulated in the burner and burned during the initial restart, causing odor and carbon monoxide (CO) generation.

本発明は上記問題点を解消するもので、常に良好な着火
特性を有し、着火時の臭気やＣＯの発生のない液体燃料
燃焼器を提供することを目的とする。The present invention solves the above-mentioned problems, and aims to provide a liquid fuel combustor that always has good ignition characteristics and does not generate odor or CO during ignition.

問題点を解決するための手段 以上の問題点を解決するために本発明の液体燃料燃焼器
のコントローラは、燃焼空気を供給する燃焼ファン６と
液体燃料の燃料供給ロアとこれに対向して設けた点火ヒ
ータ８と火炎を形成する燃焼室９と火炎の有無を検知す
る火炎センサ１０とを含むバーナ部１１と、このバーナ
部の着火、消火全制御するコントローラ１２を有し、コ
ントローラ１２には運転スイッチ１３の閉成により予め
定められた時間駆動するプリヒート部１４と、その後燃
料を燃料供給ロアから供給する信号を出力する燃料制御
部１５と、火炎センサ１０によりバーナの着火を検知す
る着火検知部１６と運転スイッチ１３を開設時に一定時
間点火ヒータを駆動するポストヒート部１７を有する構
成とした。Means for Solving the Problems In order to solve the above problems, the liquid fuel combustor controller of the present invention includes a combustion fan 6 for supplying combustion air, a fuel supply lower for liquid fuel, and a fuel supply lower provided opposite thereto. It has a burner section 11 that includes an ignition heater 8, a combustion chamber 9 that forms a flame, and a flame sensor 10 that detects the presence or absence of a flame, and a controller 12 that fully controls ignition and extinguishing of this burner section. A preheat section 14 that is driven for a predetermined time by closing the operation switch 13, a fuel control section 15 that outputs a signal to supply fuel from the fuel supply lower after that, and an ignition detection section that detects burner ignition using a flame sensor 10. The post heat section 17 is configured to drive the ignition heater for a certain period of time when the section 16 and the operation switch 13 are opened.

作　　　用 本発明は上記した構成によって、バーナ１１の消火時に
毎回ポストヒート部により一定時間点火゛ヒータ８に通
電され、点火ヒータ近傍のクリーニングを行なうという
作用を有する。Operation The present invention has the above-described structure, and has the effect of energizing the ignition heater 8 for a certain period of time by the post-heat section every time the burner 11 is extinguished, thereby cleaning the vicinity of the ignition heater.

実施例 以下、本発明の実施例を第１図から第３図を用いて説明
する。第１図において１１はバーナ部を示し６は燃焼用
の空気をモータ１８により供給する燃焼ファンで、小孔
ａ、ｂｉ通り、燃料供給ロアから供給され点火ヒータ８
により気化された燃料と混合され燃焼室９で燃焼し、排
剣口１７から流出する。コントローラ１２は運転スイッ
チ１３の信号によりバーナ部１１を制御する。１４は運
転スイッチ１３がオンした後一定時間点火ヒータ駆動部
１８に信号を送り点火ヒータ８に通電し、予熱するプリ
ヒート部を示し、その後燃料制御部１５に信号を出力す
る。燃料制御部１５は燃料供５　ページ 給ロアに至る燃料通路に設けた燃料弁１９（あるいは燃
料ポンプ）を駆動する。また着火検知部１６は燃焼室９
の燃焼を検知する火炎センサ１０の信号により燃焼の有
無を検知する。燃焼ファン６はモータ１６の回転制御信
号をコントローラ１２から受けて動作する。Embodiments Hereinafter, embodiments of the present invention will be explained using FIGS. 1 to 3. In FIG. 1, reference numeral 11 indicates a burner section, and reference numeral 6 indicates a combustion fan that supplies combustion air by a motor 18, which is supplied from the fuel supply lower through the small holes a and bi, to the ignition heater 8.
It is mixed with the vaporized fuel, burned in the combustion chamber 9, and flows out from the exhaust port 17. The controller 12 controls the burner section 11 based on the signal from the operation switch 13. Reference numeral 14 indicates a preheat section which sends a signal to the ignition heater drive section 18 for a certain period of time after the operation switch 13 is turned on to energize the ignition heater 8 to preheat it, and then outputs a signal to the fuel control section 15. The fuel control unit 15 drives a fuel valve 19 (or fuel pump) provided in a fuel passage leading to the lower fuel supply 5 . In addition, the ignition detection section 16 is connected to the combustion chamber 9.
The presence or absence of combustion is detected based on a signal from a flame sensor 10 that detects combustion. The combustion fan 6 operates upon receiving a rotation control signal for the motor 16 from the controller 12.

次にコントローラの動作を第２図と共に説明していく。Next, the operation of the controller will be explained with reference to FIG.

運転スイッチ１３がオンになると同時に点火ヒータ８が
通電され、一定時間プリヒートされる。プリヒートが完
了すると燃料弁１９と燃焼ファン６が動作し、燃焼室９
に燃料と空気が供給され、点火ヒータ８により着火する
。火炎センサ１０で着火を検知すると点火ヒータ８の通
電を停止して正常燃焼に移行する。At the same time as the operation switch 13 is turned on, the ignition heater 8 is energized and preheated for a certain period of time. When preheating is completed, the fuel valve 19 and combustion fan 6 operate, and the combustion chamber 9
Fuel and air are supplied to the engine, and the ignition heater 8 ignites the engine. When the flame sensor 10 detects ignition, the ignition heater 8 is de-energized and normal combustion begins.

運転スイッチ１３をオフにすると燃料弁１９を閉じてバ
ーナを消火させる。この時に点火ヒータ８に再度通電し
、一定時間のポストヒートに移行する。ポストパ−ジで
は燃焼室９内の未燃の燃料を全て燃やすと共に点火ヒー
タ８の近傍に付着したススやタールを焼切る働きをする
。第１図の実６ベーノ 施例では燃料の着火を向上させるために点火ヒータ８の
周辺に燃料吸収材（ウィック）２０を設けているが、ボ
ストヒート部 リーニングする。また実施例では第２図のようにポスト
ヒート時に燃焼ファン６も同時に駆動し、ポストパージ
として、燃焼室９内の排気とバーナ１１の冷却も行なっ
ている。When the operation switch 13 is turned off, the fuel valve 19 is closed and the burner is extinguished. At this time, the ignition heater 8 is energized again, and the process shifts to post-heating for a certain period of time. The post purge serves to burn off all unburned fuel in the combustion chamber 9 and burn off soot and tar adhering to the vicinity of the ignition heater 8. In the sixth vane embodiment shown in FIG. 1, a fuel absorbing material (wick) 20 is provided around the ignition heater 8 in order to improve the ignition of the fuel, but the boss heating section is leaning. Further, in the embodiment, as shown in FIG. 2, the combustion fan 6 is also driven at the same time during post-heating, and the exhaust inside the combustion chamber 9 and the burner 11 are also cooled as a post-purge.

第３図にコントローラ１２動作をフローチャートにして
示す。ここでは第２図で説明したようにポストヒート部
で同時にポストパージを行なっている。また着火検知部
１６において通常運転中に何等かの原因で失火した場合
、あるいは不着火の場合においてもボストヒート部１７
へ移行する構成としているが、バーナ１１の性能に応じ
て変更してもよい。FIG. 3 shows the operation of the controller 12 in a flowchart. Here, as explained in FIG. 2, post purge is simultaneously performed in the post heat section. In addition, even if the ignition detection unit 16 misfires for some reason during normal operation, or if there is no ignition, the boss heat unit 17
Although the configuration is such that the transition is made to the above, it may be changed depending on the performance of the burner 11.

第１図の点火ヒータ駆動部１８は第３図の「点火ヒータ
○Ｎ」　「点火ヒータ○ＦＦＪの時に動作し、燃料制御
部１５は「燃料弁開」　「燃料弁閉」の時に動作する。The ignition heater drive section 18 in FIG. 1 operates when the "ignition heater ○N" and "ignition heater ○FFJ" in FIG.

尚、本実施例では燃料弁１９を使用したがこれが燃料ポ
ンプであって燃料制御部７　ベー７ １５によりポンプのオンオフを制御する構成であっても
よい。また運転スイッチを直接オンオフレないで何等か
の別のスイッチ（例えばタイムスイッチ）を介して動作
させても同等の効果を得る。In this embodiment, the fuel valve 19 is used, but this may be a fuel pump, and the fuel control section 7 15 may be used to control on/off of the pump. Furthermore, the same effect can be obtained even if the operation switch is operated via some other switch (for example, a time switch) without directly turning it on and off.

発明の効果 以上のように本発明の液体燃料燃焼器のコントローラに
よれば次のような効果が得られる。Effects of the Invention As described above, the liquid fuel combustor controller of the present invention provides the following effects.

（１）運転スイッチ１３をオフした時に毎回点火ヒータ
８に通電するポストヒート機能により、点火ヒータ８周
辺のヌスやタール等のクリーニングを行なうため、軽油
等の重質油や不良灯油等でも確実に着火でき点火ヒータ
８の高寿命、高信頼性化がけかれる。(1) With the post-heat function that energizes the ignition heater 8 every time the operation switch 13 is turned off, the area around the ignition heater 8 is cleaned of dirt, tar, etc., so even heavy oil such as light oil or bad kerosene can be reliably cleaned. The ignition heater 8 can be ignited and the life and reliability of the ignition heater 8 can be increased.

（２）消火時に燃焼室内の残油を全て燃やし切ってしま
うため、未然ガスによる臭気が々く、また−酸化炭素（
Ｃ○）の発生も防ぎ、大気を汚さない。(2) When extinguishing a fire, all the remaining oil in the combustion chamber is burned off, so there is a strong odor from the gas, and -carbon oxide (
It also prevents the generation of C○) and does not pollute the atmosphere.

（３）着火時に燃焼室９に残油が残っていると白煙の発
生あるいは燃料過剰による爆発着火等の原因となる。ま
た残油を電化させる蒸発潜熱のため点火ヒータ８の熱が
うばわれプリヒート時間が長くなるが、本願の構成では
ボストヒートにより残油がないため、安全に着火し、プ
リヒート時間が短かい少電力々コントローラとなる。(3) If residual oil remains in the combustion chamber 9 at the time of ignition, it may cause generation of white smoke or explosion and ignition due to excess fuel. In addition, the latent heat of vaporization that electrifies the residual oil wastes the heat of the ignition heater 8, prolonging the preheating time.However, in the configuration of the present application, there is no residual oil due to the boss heat, so the ignition can be safely ignited, and the preheating time is short and the preheating time is low. Becomes a controller.

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本発明の一実施例における液体燃料燃焼器のコ
ントローラのシステム構成図、第２図は同コントローラ
の動作を説明するタイムチャート、第３図は同シーケン
ヌフローチャート、第４図は従来のコンＩ・ローラのタ
イムチャートである。 ６・・・・・燃焼ファン、７・・・・・燃料供給口、８
・・・・・・点火ヒータ、９・・・・・・燃焼室、１０
・・・・・・火炎センサ、１１・・・・・・バーナ部、
１２・・・・・・コン１−ローラ、１３・・・・・・運
転スイッチ、１４・・・・・・プリヒート部、１５・・
・・・・燃料制御部、１６・・・・・・着火検知部、１
７・・・・・ポストヒート機能。 代理人の氏名　弁即士　中　尾　敏　男　ほか１名第４
図 １−門 ホ″スρ？−ジFig. 1 is a system configuration diagram of a controller for a liquid fuel combustor according to an embodiment of the present invention, Fig. 2 is a time chart explaining the operation of the controller, Fig. 3 is a sequence flowchart, and Fig. 4 is a conventional This is a time chart of the controller I/roller. 6... Combustion fan, 7... Fuel supply port, 8
...Ignition heater, 9...Combustion chamber, 10
...Flame sensor, 11...Burner part,
12... Controller 1-roller, 13... Operation switch, 14... Preheat section, 15...
...Fuel control section, 16...Ignition detection section, 1
7... Post heat function. Name of agent: Toshio Nakao, attorney-at-large, and 1 other person No. 4
Figure 1 - Gate hose ρ?

Claims (1)

【特許請求の範囲】[Claims] （１）燃焼空気を供給する燃焼ファンと、液体燃料を供
給する燃料供給口と、前記燃料供給口に対向して設けた
点火ヒータと、前記点火ヒータにより着火し火炎を形成
する燃焼室と、前記燃焼室の火炎の有無を検知する火炎
センサを含むバーナ部と、前記バーナ部の着火、消火を
制御するコントローラを有し、前記コントローラは、運
転スイッチの閉成により予め定められた時間前記点火ヒ
ータを駆動するプリヒート部と、その後燃料で燃料供給
口から供給する信号を出力する燃料制御部と、前記火炎
センサによりバーナの着火を検知する着火検知部と、前
記運転スイッチの開放時に前記燃料制御部により燃料の
供給を停止すると同時に予め定められた時間前記点火ヒ
ータを駆動するポストヒート部を有する構成の液体燃料
燃焼器のコントローラ。(1) a combustion fan that supplies combustion air, a fuel supply port that supplies liquid fuel, an ignition heater provided opposite to the fuel supply port, and a combustion chamber that is ignited by the ignition heater to form a flame; It has a burner section including a flame sensor that detects the presence or absence of a flame in the combustion chamber, and a controller that controls ignition and extinguishing of the burner section, and the controller controls the ignition for a predetermined time by closing an operation switch. a preheat section that drives the heater, a fuel control section that outputs a signal to then supply fuel from the fuel supply port, an ignition detection section that detects ignition of the burner using the flame sensor, and the fuel control section when the operation switch is opened. A controller for a liquid fuel combustor, comprising a post-heat section that stops supply of fuel by the section and at the same time drives the ignition heater for a predetermined period of time.
JP59262118A 1984-12-12 1984-12-12 Controller for liquid fuel combustion device Pending JPS61140721A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59262118A JPS61140721A (en) 1984-12-12 1984-12-12 Controller for liquid fuel combustion device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59262118A JPS61140721A (en) 1984-12-12 1984-12-12 Controller for liquid fuel combustion device

Publications (1)

Publication Number Publication Date
JPS61140721A true JPS61140721A (en) 1986-06-27

Family

ID=17371295

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59262118A Pending JPS61140721A (en) 1984-12-12 1984-12-12 Controller for liquid fuel combustion device

Country Status (1)

Country Link
JP (1) JPS61140721A (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4031568Y1 (en) * 1964-01-13 1965-11-05
JPS4529185Y1 (en) * 1968-06-06 1970-11-10
JPS5212407A (en) * 1975-07-18 1977-01-31 Seiko Instr & Electronics Ltd Step motor for watch
JPS5217777U (en) * 1975-06-20 1977-02-08

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4031568Y1 (en) * 1964-01-13 1965-11-05
JPS4529185Y1 (en) * 1968-06-06 1970-11-10
JPS5217777U (en) * 1975-06-20 1977-02-08
JPS5212407A (en) * 1975-07-18 1977-01-31 Seiko Instr & Electronics Ltd Step motor for watch

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