JPS60207830A - Burner - Google Patents

Burner

Info

Publication number
JPS60207830A
JPS60207830A JP6403384A JP6403384A JPS60207830A JP S60207830 A JPS60207830 A JP S60207830A JP 6403384 A JP6403384 A JP 6403384A JP 6403384 A JP6403384 A JP 6403384A JP S60207830 A JPS60207830 A JP S60207830A
Authority
JP
Japan
Prior art keywords
flame
flame rod
rod
current value
combustion
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
JP6403384A
Other languages
Japanese (ja)
Inventor
Nobuo Hamano
信夫 浜野
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 JP6403384A priority Critical patent/JPS60207830A/en
Publication of JPS60207830A publication Critical patent/JPS60207830A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23NREGULATING OR CONTROLLING COMBUSTION
    • F23N5/00Systems for controlling combustion
    • F23N5/02Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium
    • F23N5/14Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using thermo-sensitive resistors
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23NREGULATING OR CONTROLLING COMBUSTION
    • F23N5/00Systems for controlling combustion
    • F23N5/02Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium
    • F23N5/12Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using ionisation-sensitive elements, i.e. flame rods

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 make it possible to easily meet any kind of gas and to arbitrarily set the concentration of oxygen interrupted by a specific gas by carrying out the detection of combustion by a difference in current values between a flame rod A provided near to a primary burner port surface and a flame rod B to which a thermister separated from the primary burner port surface is connected in series. CONSTITUTION:A burner is composed of the flame rod 5 provided near to a burner port surface, the flame rod 6 spaced apart from the flame rod 5, and the thermister 7 connected in series to the flame rod 6. The flame rod 5 has a flame current value which is higher than that of the flame rod 6 when O2 equals to 21%, but the current value increases with lowering O2%. When the current value reaches a peak, it falls thereafter. On the other hand, the flame rod 6 displays a characteristic shown by a broken line when the thermister is not attached thereto but when the thermister 7 is connected, a characteristic shown by a curve indicated by a one-dot chain line. When the points where curves intersect each other, that is, a difference between the current values of two flame rods 5 and 6 becomes zero or minus, the combustion is stopped. It may, of course, interrupt the combustion when the difference becomes zero or not minus, a certain value of 0.2muA or less, for example.

Description

【発明の詳細な説明】 産業上の利用分野 本発明は、ガス・石油等を熱源とする燃焼装置において
、燃焼状態を検出する安全装置に関するものである。
DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a safety device for detecting a combustion state in a combustion device using gas, oil, or the like as a heat source.

従来例の構成とその問題点 従来の燃焼装置は、燃焼状態を検出する安全装置として
、熱伝対やフレームロッド等のセンサーを使用していた
が、その多くはレベル検知をするもので、たとえば、通
常時は1011Aのあるセンサー出力が、異常時(たと
えば低02%時や不完全燃焼時)に3μ八へ度に出力が
低下するのを利用して、燃焼を停止させるものであった
。(第1図) ところが全−次バーナ等にフレームロッドヲ使用した場
合には、通常時においてもフレームロッドの電流値が低
く、特に燃焼速度の速い燃料では低くなり、1μ八前後
しか出ないことが多い。且つ、第2図に示す如く、低0
2%がある程度低下するまでは、フレーム電流値が上列
し、一旦ピークを越えると、フレーム電流値が下降する
ので、たとえば、通常1/7Aの出力の場合に、低02
%時の遮断のμAを設定しようとすると、0.57/A
程度の設定でないと誤動作する恐れがあるが、この時に
は、g #!′r02%は15%前後と低く、02−1
8%前後で遮断することはできない。
Conventional configuration and its problems Conventional combustion equipment uses sensors such as thermocouples and flame rods as safety devices to detect combustion conditions, but most of them are for level detection. The sensor output is normally 1011 A, but combustion is stopped by taking advantage of the fact that the output drops to 3 μ8 during abnormal conditions (for example, at low 0.2% or incomplete combustion). (Fig. 1) However, when a flame rod is used in a primary burner, etc., the current value of the flame rod is low even under normal conditions, and it is especially low when using fuel with a high burning rate, and the current value is only around 1μ8. There are many. Moreover, as shown in Fig. 2, the low 0
The flame current value rises until 2% decreases to a certain extent, and once it exceeds the peak, the flame current value decreases.For example, when the output is normally 1/7A,
When trying to set the μA of cutoff at %, it is 0.57/A
There is a risk of malfunction if the settings are not set at the correct level, but in this case, g#! 'r02% is low at around 15%, 02-1
It cannot be cut off at around 8%.

そこで、フレームロッドを2本使用し、一本は炎孔面に
近く、他の1本は炎孔面より離して設置する方法があり
、第3図において、フレームロッド1は炎孔面に近く、
フレームロッド2は炎孔面より離して設置する方法であ
る。この場合のフレーム電流値の特性は、第4図に示す
通りである。
Therefore, there is a method of using two flame rods, one close to the flame hole surface and the other one away from the flame hole surface.In Figure 3, flame rod 1 is installed close to the flame hole surface. ,
The flame rod 2 is installed away from the flame hole surface. The characteristics of the flame current value in this case are as shown in FIG.

フレームロッド11d炎孔而に近いので、02=21%
時点ではフレーム電流値は比較的大きく以降図示のカー
ブを示す。一方フレームロノド2は炎孔面より離しであ
るので、02=21%時点でのフレーム電流値は低いが
、しだいに酸欠になるとフレーム電流値は上滑し、ピー
クを越えると以降は電流値が下降する。この時、フレー
ムロッド1とフレームロッド2の電流値が逆転すること
に着目し、M転した電流値のポイントで遮断させること
ができる。今、02 = 19%で遮断しているが、こ
の遮断のポイントを02 = i s%1jJ後に設定
することができるようにするには、フレームロッド1.
2の取(−J位置・形状・燃焼状態を変えなければなら
なかったが、前記対応ではガス種間での調整がしにくい
欠点があった。
Since it is close to the frame rod 11d flame hole, 02 = 21%
At this point, the flame current value is relatively large and shows the curve shown thereafter. On the other hand, since Flame Ronod 2 is located further away from the flame hole surface, the flame current value at 02 = 21% is low, but as the oxygen deficiency gradually increases, the flame current value slides upward, and once the peak is exceeded, the current value continues to rise. The value goes down. At this time, paying attention to the fact that the current values of frame rod 1 and frame rod 2 are reversed, it is possible to interrupt the current value at the point where the current value has changed M. Currently, the cutoff is at 02 = 19%, but in order to be able to set this cutoff point after 02 = i s%1jJ, frame rod 1.
Solution 2 (-J position, shape, and combustion state had to be changed, but the above solution had the disadvantage that it was difficult to adjust between gas types.

発明の目的 本発明は従来の欠点を解消するもので、低02%の燃焼
に至る時、燃焼装置を設置した室温が上昇していくこと
、又、サーミスタが温度上昇によって、抵抗値が減少す
る現象に着目し、各ガス種間の対応を容易にし、且つ特
定のガスでの遮断02%を任意に設定できることを目的
とする。
Purpose of the Invention The present invention solves the drawbacks of the conventional technology, such as that when low 0.2% combustion is achieved, the room temperature in which the combustion device is installed increases, and the thermistor's resistance value decreases as the temperature increases. Focusing on the phenomenon, the purpose is to facilitate correspondence between each gas type and to be able to arbitrarily set the cutoff 02% for a specific gas.

発明の構成 上記目的を達成する為、本発明の燃焼装置は、バーナ炎
孔面近くに設けられたフレームロッドと、前記フレーム
ロッドよりも炎孔面から離して設けられたフレームロッ
ドと、炎孔面から離して設けられたフレームロッドに直
列に接続されたサーミきる効果を有するものである。
Structure of the Invention In order to achieve the above object, the combustion apparatus of the present invention includes a flame rod provided near the burner flame hole surface, a flame rod provided farther from the flame hole surface than the flame rod, and a flame rod provided near the burner flame hole surface. It has the effect of being connected in series to a frame rod provided away from the surface.

実施例の説明 以下本発明の一実施例について、図面に基づいて説明す
る。
DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

第5図、第6図にこの発明による燃焼装置の構成と特性
図を示している。第5図において、1はバーナであり、
全−火燃焼方式のバーナである。
FIGS. 5 and 6 show the configuration and characteristic diagrams of the combustion device according to the present invention. In FIG. 5, 1 is a burner;
This is an all-fire combustion type burner.

2はアフターバーニングをさせるための2次燃焼室であ
り、低02%での燃焼及びダンパーづまりニオイてもC
Oを発生させることがない。通常時は炎孔3で燃焼して
いるが、酸欠等の低02%になると2次炎孔4で燃焼す
る。5は一火炎孔近くに設けられたフレームロッドAで
ある。一方バーナ炎孔上部に設けられたフレームロッド
Bは6であり、サーミスタ7が直列に接続されている。
2 is a secondary combustion chamber for afterburning, and even if the combustion is at low 02% or if the damper is clogged and there is a smell, the carbon
It does not generate O. Normally, it burns in the flame hole 3, but when it becomes low 0.2% due to oxygen deficiency etc., it burns in the secondary flame hole 4. 5 is a flame rod A provided near one flame hole. On the other hand, the flame rod B provided above the burner flame hole is 6, and a thermistor 7 is connected in series.

1)1J記フレームロツドA5、B6け第6図に示す特
性を示す。即ち、フレームロッドA5は、初期の02=
21%でハ、フレームロッドB6.l: t)フレーム
電流値が高いが、しだいに02%の低下に伴ない電流値
は上昇し、ピークを迎えると以降は下降スる。一方フレ
ームロッドB6はサーミスタがつけられていないと破線
で示す特性となら、サーミスタを接続すると、一点鎖線
で示すカーブとなる。即チ、フレームロッド6’BKサ
ーミヌタを接続すると、02=21%でのμAが低下し
、フレームロッドA5とフレームロッドB5にサーミス
タを直列に接続した場合の電流値の差(2μA)−IB
はフレームロッド5Aとフレームロッl’B6にサーミ
スタを直列に接続していない場合の電流値差(0,6μ
A)−IAに比較すると、IB)IAであり、02=2
1%での余裕度が大きく、誤動作することがなくなる。
1) 1J frame rods A5 and B6 exhibit the characteristics shown in FIG. That is, the frame rod A5 is initially 02=
At 21%, frame rod B6. l: t) The flame current value is high, but the current value gradually increases as the current value decreases by 02%, and once it reaches its peak, it then decreases. On the other hand, if the frame rod B6 has the characteristics shown by the broken line when the thermistor is not attached, then when the thermistor is connected, the characteristic becomes the curve shown by the dashed line. In other words, when frame rod 6'BK therminutor is connected, μA at 02=21% decreases, and the difference in current value when a thermistor is connected in series to frame rod A5 and frame rod B5 (2μA) - IB
is the current value difference (0.6 μ
Compared to A)-IA, IB)IA and 02=2
There is a large margin at 1%, which prevents malfunctions.

以降酸欠状態になり02%が低下すると室温が上昇し、
それによってサーミスタの抵抗値は小さくなっていく特
性があるので、電流値はサーミスタの抵抗値減少分だけ
上列していくことになる。即ち、破線で示した特性のフ
レームロッドB6に、サーミスタを直列に接続すると、
一点鎖線で示した特性となり、02 = 19%で交差
していたカーブが02 =18.3%で交差するように
なる。上記の交差のポイント即ち、上記2本のフレーム
ロッドの電流値の差がO(零)又は負になった時に燃焼
を停止させるものである。
After that, when the temperature becomes oxygen deficient and the temperature drops by 0.2%, the room temperature rises.
As a result, the resistance value of the thermistor has a characteristic of decreasing, so the current value increases by the amount of decrease in the resistance value of the thermistor. That is, when a thermistor is connected in series to the frame rod B6 with the characteristics shown by the broken line,
The characteristic is shown by the dashed line, and the curves that intersect at 02 = 19% now intersect at 02 = 18.3%. Combustion is stopped at the point of intersection, that is, when the difference between the current values of the two flame rods becomes O (zero) or negative.

もちろん0(零)又は負でなく、ある値たとえば0.2
IIA以下になった時に遮断させても良い。
Of course it is not 0 (zero) or negative, but a certain value, for example 0.2
It may be shut off when the temperature drops below IIA.

発明の効果 以上のように、本発明によれば、次の効果を得ることか
できる。
Effects of the Invention As described above, according to the present invention, the following effects can be obtained.

(1)サーミスタの特性を変化させることにより、特定
のカスにおける遮断02%を変化させることができる。
(1) By changing the characteristics of the thermistor, it is possible to change the 02% cutoff at a specific waste.

2 各ガス種間の対応の為、たとえば6Bと13A用等
の場合、6B用と13A用に111J記サーミスタを区
分することにより、各ガスに於いて遮断0296を18
%11す後に設定することができる。
2. For correspondence between each gas type, for example, in the case of 6B and 13A, by dividing the thermistor 111J into 6B and 13A, the cutoff 0296 can be set to 18 for each gas.
It can be set after %11.

(3)サーミスタを接続することにより02=21Q6
での2本のフレームロッドの電流値の差を大きくするこ
とかできるので、02=21961.5点での1誤動作
を防止できる。
(3) By connecting a thermistor, 02=21Q6
Since the difference between the current values of the two frame rods at 02=21961.5 can be increased, one malfunction at the 02=21961.5 point can be prevented.

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

第1図は従来のフレームロッド′市流値特餡図、第2図
は全−次バーナにおけるフレームロッド電流値特性図、
第3図は従来のフレームロッド2本の設置図、第4図は
従来のフレームロッド2本の特性図、第5図は本発明の
一実施例を示す構成図、第6図は同フレームロッド特性
図である。 1 ・・バーナ、5・・炎孔に近いフレームロッドA、
6 炎孔から離れたフレームロッドB17・・・ サー
ミスタ。 代理人の氏名 弁理士 中 尾 敏 男 ほか1名w、
1 図 ?+ 20 19 +81’+ 16 1502t%) 第 2 図 21 201f 181’7 16 1502 (l) 第3図 第4図 21 ’10 HQ t8 t’716 t5(h (
A)−
Figure 1 is a conventional flame rod's market value characteristic diagram, Figure 2 is a frame rod current value characteristic diagram in a full-order burner,
Figure 3 is an installation diagram of two conventional frame rods, Figure 4 is a characteristic diagram of two conventional frame rods, Figure 5 is a configuration diagram showing an embodiment of the present invention, and Figure 6 is the same frame rod. It is a characteristic diagram. 1...burner, 5...flame rod A near the flame hole,
6 Frame rod B17 away from the flame hole... Thermistor. Name of agent: Patent attorney Toshio Nakao and one other person.
1 Figure? + 20 19 +81'+ 16 1502t%) 2nd Figure 21 201f 181'7 16 1502 (l) Figure 3 Figure 4 21 '10 HQ t8 t'716 t5 (h (
A)-

Claims (1)

【特許請求の範囲】[Claims] 1次炎孔面近くに設けられたフレームロッドAと、1次
炎孔面より離して設けられたフレームロッドBと、1火
炎孔面より離して設けられたフレームロッドBK直列に
接続されたサーミスタとを備え、ntJ記1次炎孔而近
面に設けられたフレームロッドAの電流値と1火炎孔面
より離して設けられたフレームロッドBの電流値との差
により燃焼検出をする構成とした燃焼装置。
A thermistor connected in series with a flame rod A provided near the primary flame hole surface, a flame rod B provided away from the primary flame hole surface, and a flame rod BK provided apart from the primary flame hole surface. and a configuration in which combustion is detected based on the difference between the current value of the flame rod A provided near the primary flame hole and the current value of the flame rod B provided apart from the first flame hole surface. combustion equipment.
JP6403384A 1984-03-30 1984-03-30 Burner Pending JPS60207830A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6403384A JPS60207830A (en) 1984-03-30 1984-03-30 Burner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6403384A JPS60207830A (en) 1984-03-30 1984-03-30 Burner

Publications (1)

Publication Number Publication Date
JPS60207830A true JPS60207830A (en) 1985-10-19

Family

ID=13246405

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6403384A Pending JPS60207830A (en) 1984-03-30 1984-03-30 Burner

Country Status (1)

Country Link
JP (1) JPS60207830A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0821777A4 (en) * 1995-04-19 2000-04-12 Bowin Tech Pty Ltd Heating appliance
JP2011133116A (en) * 2009-12-22 2011-07-07 Paloma Co Ltd Combustion device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0821777A4 (en) * 1995-04-19 2000-04-12 Bowin Tech Pty Ltd Heating appliance
JP2011133116A (en) * 2009-12-22 2011-07-07 Paloma Co Ltd Combustion device

Similar Documents

Publication Publication Date Title
US4457692A (en) Dual firing rate flame sensing system
JPS60207830A (en) Burner
JPH0435647B2 (en)
JPS60240919A (en) Combustion device
CN205481688U (en) Burner and hot water system are mixed in advance to self -adaptation of thermocouple response
JP2517883Y2 (en) Boiler combustion control device
JPS54147530A (en) Air preheating temperature controller for combustion of air heating furnaces
JP2005188801A (en) Combustion control method of boiler
JPH09287737A (en) Combustion apparatus
JP2634112B2 (en) A / D converter for sensor
JPS63101620A (en) Flame detection for gas cooking table
JPS60263201A (en) Temperature control device
JPH1183004A (en) Combustion apparatus and firing control method
JPS62202932A (en) Controlling device for heating apparatus
JPH01291017A (en) Device for capacity control of gas stove
JPS61116217A (en) Combustion device
JPS60235915A (en) Burning safety device
JP3281237B2 (en) Combustion device fan motor control system
KR970032587A (en) Abnormal process control device and method for electric rice cooker
EP4273407A1 (en) Method for detecting damage to a fan casing of a heating device, computer program product, control device, heating device and use of a detected value
JPS63153316A (en) Combustion control device
JPS61228248A (en) Temperature controller
JPS6050333A (en) Hot water temperature control device for instanteneous gas water heater
JPS5880421A (en) Combustion stabilizing device in full primary air type combustion apparatus
JPH0226134B2 (en)