JPH0656262B2 - Combustion type hot air heater controller - Google Patents
Combustion type hot air heater controllerInfo
- Publication number
- JPH0656262B2 JPH0656262B2 JP61066357A JP6635786A JPH0656262B2 JP H0656262 B2 JPH0656262 B2 JP H0656262B2 JP 61066357 A JP61066357 A JP 61066357A JP 6635786 A JP6635786 A JP 6635786A JP H0656262 B2 JPH0656262 B2 JP H0656262B2
- Authority
- JP
- Japan
- Prior art keywords
- combustion
- room temperature
- unit
- output
- burner
- 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.)
- Expired - Lifetime
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
- F23N5/02—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium
- F23N5/12—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using ionisation-sensitive elements, i.e. flame rods
- F23N5/123—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using ionisation-sensitive elements, i.e. flame rods using electronic means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2225/00—Measuring
- F23N2225/08—Measuring temperature
- F23N2225/12—Measuring temperature room temperature
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Combustion (AREA)
- Regulation And Control Of Combustion (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明はガス、石油等を燃料とする開放燃焼型温風暖房
器において、室温の排ガス濃度により燃焼を停止する制
御装置に関するものである。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control device for stopping combustion depending on the exhaust gas concentration at room temperature in an open combustion type hot air heater using gas, oil, etc. as a fuel.
従来の技術 ファンヒータ等の燃焼式温風暖房器は室内で燃焼するた
め室内空気の換気は不可欠である。従来は酸素濃度の低
下により不完全燃焼に至った場合に、バーナ火炎に挿入
したフレームロッドにより、炎のイオン電流の変化を検
出して燃焼を停止するものが一般的であった。BACKGROUND ART Combustion-type hot air heaters such as fan heaters combust indoors, so ventilation of indoor air is essential. In the past, when incomplete combustion was reached due to a decrease in oxygen concentration, a flame rod inserted into the burner flame generally detected changes in the ion current of the flame and stopped combustion.
例えば特開昭５９−１４５４２２号公報があり、第６図
にこの構成を説明する。燃料ガスはノズル１より噴出
し、混合管２により空気と混合され、金網で形成した燃
焼板３の内部４に内炎５を形成して燃焼する。６は火炎
５中に挿入されたフレームロッドで、燃焼板３との間に
直流電源７を印加され、火炎のイオン電流Ｉｆを抵抗８
で検出する。For example, there is Japanese Patent Laid-Open No. 59-145422, and this configuration will be described in FIG. The fuel gas is ejected from the nozzle 1 and mixed with air by the mixing tube 2, and an internal flame 5 is formed in the inside 4 of the combustion plate 3 formed of a wire net and burned. Reference numeral 6 is a frame rod inserted into the flame 5, and a DC power source 7 is applied between the flame rod 5 and the combustion plate 3 so that the flame ion current I f is applied to the resistor 8
Detect with.
抵抗８の両端の電圧降下は炎電流Ｉｆと比例した値とな
り、この出力が一定の閾値以下、あるいは以上になった
時にバーナーが異常燃焼であると判断し、燃料の供給を
停止し、消火する。第７図にこの特性を示す。横軸に室
内酸素濃度、縦軸に炎電流Ｉｆ、およびバーナから発生
する一酸化炭素（ＣＯ）を相対値で示す。室内の酸素濃
度が低下すれば炎電流Ｉｆは上昇して行く。（バーナの
設計により下降する場合も有る）これと同時にバーナが
不完全燃焼になりＣＯが発生し始める。ここで炎電流Ｉ
ｆが相対値で７以上となった時にバーナの燃焼を停止
し、ＣＯによる中毒事故等の危険を防ぐように働く。The voltage drop across the resistor 8 becomes a value proportional to the flame current I f, the burner when this output constant threshold value or less, or equal to or greater than is determined to be abnormal combustion, stopping the supply of fuel, extinguishing To do. This characteristic is shown in FIG. The horizontal axis shows the indoor oxygen concentration, the vertical axis shows the flame current If , and carbon monoxide (CO) generated from the burner in relative values. If the oxygen concentration in the room decreases, the flame current If increases. (In some cases, the burner may be lowered depending on its design.) At the same time, the burner becomes incompletely burned and CO starts to be generated. Where flame current I
When f is a relative value of 7 or more, combustion of the burner is stopped, and it works to prevent the risk of CO poisoning accident.
発明が解決しようとする問題点 しかしながら上記のような従来の手段は、異常燃焼時に
炎電流Ｉｆが確実に変化する事を前提条件として成立す
るものであり、例えば第６図で火炎がフレームロッド６
部は正常燃焼していてもロッド６以外の部分が異常燃焼
となりＣＯが発生した場合は検出できない。また第７図
で炎電流Ｉｆが５付近で停滞している場合は異常燃焼で
はないがＣＯは室内に累積されていくことも考えられ
る。DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention However, the above-mentioned conventional means is established on the precondition that the flame current If is changed reliably during abnormal combustion. For example, in FIG. 6
Even if the portion is normally burned, if the portion other than the rod 6 is abnormally burned and CO is generated, it cannot be detected. In the case where the flame current I f in FIG. 7 has stagnated around 5 is not abnormal combustion CO is also contemplated that will accumulate in the room.
これ等最悪条件を考慮すると従来の方式のみでは万全と
いうことができないという問題点がある。If these worst conditions are taken into consideration, there is a problem that the conventional method alone cannot be sufficient.
問題点を解決するための手段 上記問題点を解決するために本発明の燃焼式温風暖房器
の制御装置は、燃料を燃焼するバーナと、この燃焼空気
と室内空気を混合して室内を暖房する対流ファンと、前
記バーナの安全燃焼制御を行なう制御回路部を有し、前
記制御回路部は、燃焼量を記憶する燃焼量記憶部と、室
温センサにより室温を測定する室温測定部と、前記バー
ナに対向して設けたフレームロッドにより炎電流を測定
する炎電流測定部と、前記室温測定部の出力の変化度合
を検出する室温傾斜検知部と、前記炎電流測定部の出力
の変化度合を検出する炎電流傾斜検知部と、燃焼開始か
らの時間をカウントするタイマ部と、前記タイマ部から
の出力と前記室温傾斜検知部からの出力と前記炎電流傾
斜検知部からの出力と前記燃焼量記憶部からの出力によ
り室内排ガス濃度を演算する排ガス濃度演算部と、前記
排ガス濃度演算部の演算結果が所定の値を超えた時に前
記バーナの燃焼を停止する安全遮断部とからなる構成と
している。Means for Solving the Problems In order to solve the above problems, a control device for a combustion-type hot air heater according to the present invention heats a room by burning a fuel and a burner that mixes the combustion air and room air. A convection fan and a control circuit unit for performing safe combustion control of the burner, the control circuit unit includes a combustion amount storage unit that stores a combustion amount, a room temperature measurement unit that measures a room temperature by a room temperature sensor, and A flame current measuring unit that measures a flame current by a frame rod provided facing the burner, a room temperature inclination detecting unit that detects a change degree of the output of the room temperature measuring unit, and a change degree of the output of the flame current measuring unit. A flame current inclination detection unit for detecting, a timer unit for counting the time from the start of combustion, an output from the timer unit, an output from the room temperature inclination detection unit, an output from the flame current inclination detection unit, and the combustion amount. From memory Of the indoor exhaust gas concentration, and a safety cutoff unit for stopping the combustion of the burner when the calculation result of the exhaust gas concentration calculation unit exceeds a predetermined value.
作 用 本発明は上記した構成によって、燃焼状態の良否にかか
わらず、室内のＣＯ濃度を検出し危険な状態になる前に
燃焼を停止する作用を有する。Operation The present invention has the function of detecting the CO concentration in the room and stopping the combustion before it becomes a dangerous state, regardless of whether the combustion state is good or not, by the configuration described above.
実施例 以下、本発明の実施例を添付図面にもとづいて説明す
る。第１図は本発明の燃焼式温風暖房器の制御装置の一
実施例の要部をブロック図にして示す。尚、本実施例で
はガスを燃料するガスファンヒータを例にして説明して
いく。ガスは入口９から入り安全弁１０を通りノズル１
１から燃焼用一次空気１２と混合されバーナ１３で燃焼
する。６は炎電流を検出するためのフレームロッドであ
る。一方モータ１４により駆動される対流ファン１５は
吸気口１６から室内空気１７を取り入れ、燃焼排気１８
と混合され、温風１９となって吹出口２０から吹出して
室内を暖房する。Embodiments Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a block diagram showing a main part of an embodiment of a control apparatus for a combustion type hot air heater according to the present invention. In this embodiment, a gas fan heater that uses gas as fuel will be described as an example. Gas enters from the inlet 9 and goes through the safety valve 10 to the nozzle 1
1 is mixed with the primary air 12 for combustion and burned in the burner 13. 6 is a frame rod for detecting the flame current. On the other hand, the convection fan 15 driven by the motor 14 takes in indoor air 17 from the intake port 16 and burns exhaust gas 18
Is mixed with and becomes warm air 19 and blows out from the air outlet 20 to heat the room.
制御回路部２１はバーナ１３の安全燃焼のためにフレー
ムロッド６やその他のセンサの信号を受けて安全弁１０
や対流ファンモータ１４等を駆動制御すると同時に室温
センサ２２の信号を室温測定部２３で測定してバーナ１
３の燃焼量制御を行なう。（図示せず）タイマ部２４は
バーナ１３が燃焼開始すると同時にカウントを始める。
室温傾斜検知部２５は室温測定部２３が測定する室温Ｔ
の単位時間あたりの変化度合ΔＴを検知し、室温傾斜記
憶部２６に記憶する。炎電流傾斜検知部２７は炎電流測
定部２８が測定する炎電流Ｉｆの単位時間あたりの変化
度合ΔIfを検知する。排ガス濃度演算部２９は室温傾斜
記憶部２６からΔＴ、炎電流傾斜検知部２７からΔIf、
タイマ部２４から燃焼開始からの経過時間ｔ、燃焼量を
記憶している燃焼量記憶部３０から燃焼量Ｑを入力し、
室内のＣＯ濃度ＣＯを演算する。演算の一例を次に説明
する。室内の広さをＲ、換気回数をＮとすると、時間と
室温の特性は第２図に示す様にＮ×Ｒが小さいほど傾き
が大きい。したがって室温傾斜記憶部２６からの入力Δ
ＴとＮ×Ｒは第３図に示す特性を持つ。第３図の特性は
燃焼量Ｑが変化すると違ったものになり、Ｎ×Ｒは室温
傾斜記憶部２６からの入力ΔＴと燃焼量記憶部３０から
の入力Ｑの関数 Ｎ×Ｒ＝ｆ1(ΔＴ，Ｑ) により演算する。炎電流Ifと酸素濃度Ｏ2は第４図に示
す様に濃度低下にしたがい電流はほぼ直線的に減少する
特性（バーナの設計により増加する場合もある）を持っ
ているので酸素濃度Ｏ2は炎電流Ifの一次関数 Ｏ2＝b1×If×b2 （b1，b2は定数） で定義できる。したがって炎電流傾斜検知部２７からの
入力ΔIfより単位時間あたり酸素濃度の変化度合を ΔＯ2＝b1×ΔIf の式で演算する。室内の酸素濃度Ｏ2は一般に、 の関数で近似できることが知らてているので の関数を与えることができ、その逆関数として先に演算
したＮ×ＲとΔＯ2と燃焼量記憶部２９からの入力Ｑ
と、タイマ部２４からの入力する燃焼開始からの時間ｔ
より換気回数Ｎは関数 Ｎ＝f2（Ｎ×Ｒ，Ｑ，ｔ，ΔＯ2） により演算する。室内のＣＯ濃度ＣＯは一般に、 の関数で近似できることが知られている。ｋはバーナ固
有の定数である。先に演算したＮ×ＲとＮと燃焼量記憶
部２９からの入力Ｑとタイマ部２４からの入力ｔよりＣ
Ｏは関数 ＣＯ＝f3（Ｎ×Ｒ，Ｎ，Ｑ，ｔ） より演算する。排ガス濃度演算部２９は以上演算より室
内のＣＯ濃度を演算し、演算結果が所定の値ａ（例えば
１００ｐｐｍ）を越えると安全遮断部３１が安全弁１０
を閉じてバーナ１３の燃焼を停止する。又、ａより少し
小さいに値ａ′（例えば９０ｐｐｍ）を越えると報知部
３２が警報を発して使用者に換気を促す。以上の動作の
流れを第５図に示す。The control circuit unit 21 receives signals from the frame rod 6 and other sensors for safe combustion of the burner 13 and outputs the safety valve 10
And the convection fan motor 14 are driven and controlled, and at the same time, the signal from the room temperature sensor 22 is measured by the room temperature measuring unit 23 to burner 1
The combustion amount control of 3 is performed. The timer unit (not shown) 24 starts counting at the same time when the burner 13 starts burning.
The room temperature inclination detecting unit 25 measures the room temperature T measured by the room temperature measuring unit 23.
The change degree ΔT per unit time is detected and stored in the room temperature inclination storage unit 26. The flame current inclination detection unit 27 detects the degree of change ΔI f of the flame current I f measured by the flame current measurement unit 28 per unit time. The exhaust gas concentration calculation unit 29 uses the room temperature inclination storage unit 26 for ΔT, the flame current inclination detection unit 27 for ΔI f ,
The elapsed time t from the start of combustion from the timer unit 24 and the combustion amount Q from the combustion amount storage unit 30 that stores the combustion amount are input,
The CO concentration CO in the room is calculated. An example of the calculation will be described below. Assuming that the room size is R and the ventilation frequency is N, the characteristics of time and room temperature have a larger slope as N × R becomes smaller, as shown in FIG. Therefore, the input Δ from the room temperature inclination storage unit 26
T and N × R have the characteristics shown in FIG. The characteristics of FIG. 3 become different as the combustion amount Q changes, and N × R is a function of the input ΔT from the room temperature slope storage unit 26 and the input Q from the combustion amount storage unit N × R = f 1 ( Calculate by ΔT, Q). Flame current I f and the oxygen concentration O 2 is the oxygen concentration O 2 because it has a (also if increased by the burner design) is the current in accordance with the density reduction as shown in Fig. 4 substantially linearly decreasing characteristic Can be defined by the linear function O 2 = b 1 × I f × b 2 (b 1 and b 2 are constants) of the flame current I f . Therefore, the change degree of the oxygen concentration per unit time is calculated from the input ΔI f from the flame current inclination detection unit 27 by the equation ΔO 2 = b 1 × ΔI f . The oxygen concentration O 2 in the room is Since we know that it can be approximated by the function of Input Q from the function can be given, N × R and delta O.D. 2 and the combustion amount storage unit 29 calculated above as its inverse function
And the time t from the start of combustion input from the timer unit 24
Therefore, the ventilation rate N is calculated by the function N = f 2 (N × R, Q, t, ΔO 2 ). CO concentration in the room is generally It is known that it can be approximated by the function of. k is a constant unique to the burner. The N × R and N calculated previously, the input Q from the combustion amount storage unit 29, and the input t from the timer unit 24 to C
O is calculated from the function CO = f 3 (N × R, N, Q, t). The exhaust gas concentration calculation unit 29 calculates the indoor CO concentration by the above calculation, and when the calculation result exceeds a predetermined value a (for example, 100 ppm), the safety cutoff unit 31 causes the safety valve 10 to operate.
Is closed to stop the combustion of the burner 13. Further, when the value a '(for example, 90 ppm), which is slightly smaller than a, is exceeded, the notification unit 32 issues an alarm and prompts the user to ventilate. The flow of the above operation is shown in FIG.
以上、実施例ではガスファンヒータについて説明した
が、別の燃料、例えば石油ファンヒータにも全く同様の
効果を得るものであり、この場合は、安全弁１０の代わ
りに給油ポンプ等を動作してもよい。又、近似式は精度
を得るためにもっと複雑な近似式、あるいは逆にもっと
簡略化した近似式を用いて同様の効果を得ることもでき
る。又、同様の近似式で人体に有害なガスＮＯ2の濃度
を演算することもできる。Although the gas fan heater has been described in the above embodiments, the same effect can be obtained with another fuel, for example, an oil fan heater. In this case, even if an oil supply pump or the like is operated instead of the safety valve 10. Good. Further, the same effect can be obtained by using a more complicated approximation formula to obtain accuracy, or conversely, a simplified approximation formula. Further, the concentration of the gas NO 2 harmful to the human body can be calculated by the similar approximation formula.
発明の効果 以上説明したように本発明の燃焼式温風暖房器の制御装
置によれば次の効果が得られる。Effects of the Invention As described above, according to the control device for the combustion type hot air heater of the present invention, the following effects are obtained.
(1) 燃焼状態に依存せず室内のＣＯ濃度により燃焼停
止あるいは報知を行なう構成としているので安全性を高
めるという効果がある。(1) Since the combustion is stopped or notified depending on the CO concentration in the room regardless of the combustion state, there is an effect of improving safety.
(2) 炎電流の絶対値でなく変化度合を入力して演算す
る構成としているので、フレームロッドのばらつきの影
響が少なく信頼性を高めるという効果がある。(2) Since the calculation is performed by inputting the degree of change rather than the absolute value of the flame current, there is little effect of variations in the frame rod, and there is an effect of improving reliability.
(3) 本発明を実現するためのセンサやアクチュエータ
は既に暖房器に備わっている物を兼用して使用するため
構成が複雑にならず、従来の安全装置と併用して使用
し、２重安全にできるという効果がある。(3) The sensors and actuators for realizing the present invention do not have a complicated structure because they are also used as the ones already provided in the heater, and are used in combination with the conventional safety device. There is an effect that can be.
第１図は本発明の一実施例の燃焼式温風暖房器の制御装
置のブロック図、第２図は室温と時間の特性図、第３図
は部屋の広さと換気回数の積と室温の変化度合の特性
図、第４図は炎電流とＯ2濃度の特性図、第５図は動作
の流れを示す流れ図、第６図は従来例の燃焼式温風暖房
器の制御装置の断面図、第７図は同燃焼式温風暖房器の
特性図である。 ６……フレームロッド、１３……バーナ、１５……対流
ファン、２１……制御回路部、２２……室温センサ、２
３……室温測定部、２４……タイマ部、２５……室温傾
斜検知部、２７……炎電流傾斜検知部、２８……炎電流
測定部、２９……排ガス濃度演算部、３０……燃焼量記
憶部、３１……安全遮断部。FIG. 1 is a block diagram of a control device for a combustion type hot air heater according to an embodiment of the present invention, FIG. 2 is a characteristic diagram of room temperature and time, and FIG. 3 is a product of room size and ventilation frequency and room temperature. FIG. 4 is a characteristic diagram of the degree of change, FIG. 4 is a characteristic diagram of flame current and O 2 concentration, FIG. 5 is a flowchart showing the flow of operation, and FIG. 6 is a sectional view of a control device for a conventional combustion type hot air heater. FIG. 7 is a characteristic diagram of the combustion type warm air heater. 6 ... Frame rod, 13 ... Burner, 15 ... Convection fan, 21 ... Control circuit part, 22 ... Room temperature sensor, 2
3 ... Room temperature measuring part, 24 ... Timer part, 25 ... Room temperature inclination detecting part, 27 ... Flame current inclination detecting part, 28 ... Flame current measuring part, 29 ... Exhaust gas concentration calculating part, 30 ... Combustion Quantity storage unit, 31 ... Safety cutoff unit.
Claims (3)
室内空気を混合して室内を暖房する対流ファンと、前記
バーナの安全燃焼制御を行なう制御回路部を有し、前記
制御回路部は、燃焼量を記憶する燃焼量記憶部と、室温
センサにより室温を測定する室温測定部と、前記バーナ
に対向して設けたフレームロァドにより炎電流を測定す
る炎電流測定部と、前記室温測定部の出力の変化度合を
検出する室温傾斜検知部と、前記炎電流測定部の出力の
変化度合を検出する炎電流傾斜検知部と、燃焼開始から
の時間をカウントするタイマ部と、前記タイマ部からの
出力と前記室温傾斜検知部からの出力と前記炎電流傾斜
検知部からの出力と前記燃焼量記憶部からの出力より室
内排ガス濃度を演算する排ガス濃度演算部と、前記排ガ
ス濃度演算部の演算結果が所定の値を超えた時に前記バ
ーナの燃焼を停止する安全遮断部とからなる燃焼式温風
暖房器の制御装置。1. A burner that burns fuel, a convection fan that heats the interior of the room by mixing the combustion air and room air, and a control circuit section that performs safe combustion control of the burner. A combustion amount storage unit that stores a combustion amount, a room temperature measurement unit that measures a room temperature by a room temperature sensor, a flame current measurement unit that measures a flame current by a flame rod provided facing the burner, and a room temperature measurement unit A room temperature inclination detection unit that detects the degree of change in output, a flame current inclination detection unit that detects the degree of change in output of the flame current measurement unit, a timer unit that counts the time from the start of combustion, and a timer unit from the timer unit. An exhaust gas concentration calculation unit that calculates the indoor exhaust gas concentration from the output, the output from the room temperature inclination detection unit, the output from the flame current inclination detection unit, and the output from the combustion amount storage unit, and the performance of the exhaust gas concentration calculation unit. Result control of the combustion temperature air heater comprising a safety shut-off section for stopping combustion of the burner when exceeds a predetermined value.
が所定の値より小さい第２の所定の値を超えた時に報知
する報知部を有する構成とした特許請求の範囲第１項記
載の燃焼式温風暖房器の制御装置。2. The control circuit section according to claim 1, wherein the control circuit section has a notifying section for notifying when the calculation result of the exhaust gas concentration calculating section exceeds a second predetermined value smaller than a predetermined value. Control device for combustion type hot air heater.
した室温の変化度合を記憶する室温傾斜記憶部を有し、
前記室温傾斜記憶部の記憶内容を排ガス濃度演算部に出
力する構成とした特許請求の範囲第１項記載の燃焼式温
風暖房器の制御装置。3. The room temperature inclination detecting section has a room temperature inclination storing section for storing the degree of change of the room temperature detected first after the start of combustion,
The control device for a combustion-type hot air heater according to claim 1, wherein the storage content of the room temperature inclination storage unit is output to an exhaust gas concentration calculation unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61066357A JPH0656262B2 (en) | 1986-03-25 | 1986-03-25 | Combustion type hot air heater controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61066357A JPH0656262B2 (en) | 1986-03-25 | 1986-03-25 | Combustion type hot air heater controller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62223522A JPS62223522A (en) | 1987-10-01 |
| JPH0656262B2 true JPH0656262B2 (en) | 1994-07-27 |
Family
ID=13313518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61066357A Expired - Lifetime JPH0656262B2 (en) | 1986-03-25 | 1986-03-25 | Combustion type hot air heater controller |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0656262B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08109713A (en) * | 1994-10-12 | 1996-04-30 | Marushika Yogyo Kk | Roofing panel |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62225829A (en) * | 1986-03-26 | 1987-10-03 | Matsushita Electric Ind Co Ltd | Control device for combustion type hot air heater |
| JPH01102216A (en) * | 1987-10-16 | 1989-04-19 | Fujitsu General Ltd | Controller for burner |
| JP2540383B2 (en) * | 1990-11-22 | 1996-10-02 | 山武ハネウエル株式会社 | Combustion control device |
| NL1015913C2 (en) * | 2000-08-10 | 2002-02-12 | Pvg Dev Ltd | Heater provided with a safety device. |
| JP4858917B2 (en) * | 2007-09-27 | 2012-01-18 | リンナイ株式会社 | Hot air heater |
-
1986
- 1986-03-25 JP JP61066357A patent/JPH0656262B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08109713A (en) * | 1994-10-12 | 1996-04-30 | Marushika Yogyo Kk | Roofing panel |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62223522A (en) | 1987-10-01 |
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