JPS63163713A - Temp. control method for vaporizer of liquid fuel combustion apparatus - Google Patents
Temp. control method for vaporizer of liquid fuel combustion apparatusInfo
- Publication number
- JPS63163713A JPS63163713A JP61311224A JP31122486A JPS63163713A JP S63163713 A JPS63163713 A JP S63163713A JP 61311224 A JP61311224 A JP 61311224A JP 31122486 A JP31122486 A JP 31122486A JP S63163713 A JPS63163713 A JP S63163713A
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- vaporizer
- temp
- liquid fuel
- electric heater
- 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
Links
- 239000006200 vaporizer Substances 0.000 title claims abstract description 49
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 title claims abstract description 16
- 239000000446 fuel Substances 0.000 title claims description 40
- 239000007788 liquid Substances 0.000 title claims description 20
- 230000008016 vaporization Effects 0.000 claims abstract description 12
- 238000009834 vaporization Methods 0.000 claims abstract description 9
- 230000005611 electricity Effects 0.000 claims description 4
- 230000000630 rising effect Effects 0.000 claims description 4
- 230000003247 decreasing effect Effects 0.000 claims description 2
- 235000009781 Myrtillocactus geometrizans Nutrition 0.000 abstract description 3
- 240000009125 Myrtillocactus geometrizans Species 0.000 abstract description 3
- 238000007796 conventional method Methods 0.000 description 3
- 244000249914 Hemigraphis reptans Species 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 2
- 210000003323 beak Anatomy 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000012937 correction Methods 0.000 description 1
- 238000009402 cross-breeding Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
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
- F23N5/022—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2237/00—Controlling
- F23N2237/14—Controlling burners with gasification or vaporizer elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2239/00—Fuels
- F23N2239/06—Liquid fuels
-
- 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
- F23N5/14—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using thermo-sensitive resistors
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
Description
【発明の詳細な説明】
［産業上の利用分野コ
本発明は暖房用などに用いられる液体燃料の燃焼装置の
気化装置に間するものである。液体燃料（以下燃油）は
電熱ヒーターを備えた気化装置内で内で加熱、ガス化さ
れこれをバーナーにて燃焼させる。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention is applied to a vaporization device for a liquid fuel combustion device used for heating or the like. Liquid fuel (hereinafter referred to as fuel) is heated and gasified in a vaporizer equipped with an electric heater, and then combusted in a burner.
［従来の技術］
燃油を加熱、気化してこれをバーナーに導いて一次空気
と予混合した後燃焼する。いわゆる気化燃焼は２着火直
後から安定した青炎燃焼が可能なことや、燃料供給量を
輻広く可変出来ること、燃焼性能が良好でＣＯの発生が
少ないことから室内開放式の暖房機の主流を形成してい
る。第一図は、気化燃焼を行う装置の一例として電熱ヒ
ーター（１）を内蔵した密閉式の気化装置（２）で気化
された燃油をバーナー（３）の混合管（４）に噴出して
火口（５）にて燃焼を行う、いわゆるブンゼン燃焼なる
燃焼装置を示したものである０本例を始めとする気化式
の液体燃料燃焼装置は、その気化装置を常に燃油の気化
に最適な温度に維持出来ないと燃焼性能が低下したり、
気化装置の寿命を縮めるなどの不都合が生じる。このた
め気化装置には通常、装置温度を常に検知するための温
度センサー（６）、および温度センサー（６）からの情
報により気化装置温度を目的の温度に維持するための電
熱ヒーター（１）が備えられている。[Prior Art] Fuel is heated and vaporized, then guided to a burner where it is premixed with primary air and then combusted. So-called evaporative combustion has become mainstream in indoor open-air heaters because it is capable of stable blue flame combustion immediately after ignition, the amount of fuel supplied can be varied over a wide range, and has good combustion performance and little CO emissions. is forming. Figure 1 shows an example of a device that performs vaporization combustion, in which fuel vaporized by a closed type vaporization device (2) with a built-in electric heater (1) is injected into a mixing pipe (4) of a burner (3). (5) This example shows a so-called Bunsen combustion combustion device that performs combustion in a vaporizing type liquid fuel combustion device, such as this example, in which the vaporizing device is always kept at the optimum temperature for vaporizing the fuel. If it cannot be maintained, combustion performance will deteriorate,
This causes inconveniences such as shortening the life of the vaporizer. For this reason, vaporizers usually include a temperature sensor (6) to constantly detect the device temperature, and an electric heater (1) to maintain the vaporizer temperature at a desired temperature based on information from the temperature sensor (6). It is equipped.
以上のように構成された液体燃料燃焼装置において、従
来までは燃焼継続中の気化装置（２）の温度維持は予め
所定の温度を定めておき、温度センサー（６）が検知す
る気化装置（２）の温度がこの所定の温度よりも低い時
は電熱ヒーター（１）への通電を行い、高い時は通電を
止め、これを周期的にくり返しながら行うよう構成され
ているものが一般的であった。In the liquid fuel combustion apparatus configured as described above, conventionally, the temperature of the vaporizer (2) during continued combustion is determined in advance by setting a predetermined temperature, and the temperature sensor (6) detects the temperature of the vaporizer (2). ) is lower than this predetermined temperature, the electric heater (1) is energized, and when it is higher than the predetermined temperature, the electric heater (1) is turned off, and this is generally repeated periodically. Ta.
第二図は以上の様に制御された時の温度センサー（６）
が検出する気化装置（２）の温度Ｔを時間を横軸にして
表したものであるが、このような制御を行っている場合
、電熱ヒーター（１）の通電に伴い気化装置Ｉ （２）
の温度が上昇し、温度センサー（６）が所定の温度Ｔｏ
以上の温度を検知して電熱ヒーター（１）の通電を止め
た場合でも、電熱ヒーター（１）や気化装置（２）内の
余熱により温度の上昇はその後もしばらく続くが、やが
て温度上昇は止まり、ビークＰを持フた後次に降下を示
す。The second figure shows the temperature sensor (6) when it is controlled as above.
The temperature T of the vaporizer (2) detected by the vaporizer (2) is expressed with time as the horizontal axis. When such control is performed, the temperature T of the vaporizer (2) detected by the vaporizer I (2) is
temperature rises, and the temperature sensor (6) reaches a predetermined temperature To.
Even if the electric heater (1) is turned off after detecting a temperature higher than that, the temperature will continue to rise for a while due to residual heat inside the electric heater (1) and vaporizer (2), but the temperature will eventually stop rising. , after holding the beak P, it then shows a descent.
同様に温度が降下することにより温度センサー（６）が
所定の温度Ｔｏ以上の温度を検知して電熱ヒーター（１
）の通電が再開された時も、電熱ヒーター（１）によっ
て与えられた熱が温度センサー（６）に伝えられるまで
は温度の降下は継続し、ピークＰ′を持った後再び温度
は上昇する。Similarly, as the temperature decreases, the temperature sensor (6) detects a temperature higher than the predetermined temperature To, and the electric heater (1
) is restarted, the temperature continues to drop until the heat given by the electric heater (1) is transferred to the temperature sensor (6), and after reaching the peak P', the temperature rises again. .
この様に予め定められた温度を境に電熱ヒーター（Ｉ）
の通電をＯＮ・ＯＦＦ制御する方式では気化装置（２）
の熱容量によるオーバーシュート、アンダーシュートが
生じ、温度は一定の幅（ｐ）を持って振動を起こす、こ
の振動は決して好ましいものではなく２例えば第一図で
示された密閉式の気化装置を用いたブンゼン燃焼方式の
燃焼装置では気化装置ｔ （２）の温度が気化を行うた
めの最適の温度−より低めに推移した場合、気化装置（
２）の内部圧力が低下することによりガス噴出の速度が
弱まり、−次空気が十分に吸引されずに空気不足に伴う
赤火燃焼を起こしたり、さらには気化ガス中に一部燃油
の未気化粒子が混入することによる燃焼不良や気化装置
（２）のノズル（７）からの未気化燃油のたれの発生な
どが生じ、好ましくない。In this way, the electric heater (I)
In the method of ON/OFF control of the energization, the vaporizer (2)
Overshoot and undershoot occur due to the heat capacity of In Bunsen combustion type combustion equipment, if the temperature of the vaporizer t (2) changes below the optimum temperature for vaporization, the vaporizer (
2) As the internal pressure decreases, the speed of gas ejection weakens, and insufficient air is sucked in, causing red flame combustion due to lack of air, and even some fuel may remain unvaporized in the vaporized gas. The mixture of particles causes poor combustion and dripping of unvaporized fuel from the nozzle (7) of the vaporizer (2), which is undesirable.
反対に気化装置（２）の温度が気化を行うための最適の
温度より高めに推移した場合は、気化装置（２）の内圧
が高まることによりガス噴出の速度が過大になり一次空
気過剰に伴うリフト燃焼が生じ、立ち消え、赤熱による
バーナー寿命の低下、異音の発生などを生じるおそれを
持つ。On the other hand, if the temperature of the vaporizer (2) becomes higher than the optimum temperature for vaporization, the internal pressure of the vaporizer (2) increases, causing the gas jetting speed to become excessive, resulting in excess primary air. There is a risk that lift combustion will occur, causing the burner to go out, reduce burner life due to red heat, and generate abnormal noise.
また、この娠幅は燃料供給量の多少によっても影響を受
ける。第三図は燃焼量の調節可能な、すなわち送油ポン
プ（８）からの燃料供給量を可変することのできる液体
燃料燃焼装置の気化装置（２）の温度の変化を、液体供
給量を（イ）最大、（ロ）中間（第二図に相当）、（ハ
）最少と分けて示したものであるが９例えば（イ）最大
においては、電熱ヒーター（１）への通電が停止された
後の温度のオーバーシュートは、気化装置（２）内を多
量に通過する燃油によって奪われる熱のために少なめで
あるのに対し、温度が下がり通電が開始された後のアン
ダーシュートは同様の理由で大きなものとなっている。Furthermore, the width of the gap is also affected by the amount of fuel supplied. Figure 3 shows the change in temperature of the vaporizer (2) of a liquid fuel combustion device whose combustion amount can be adjusted, that is, the amount of fuel supplied from the oil feed pump (8). It is shown separately as (a) maximum, (b) intermediate (corresponding to Figure 2), and (c) minimum.9 For example, at (a) maximum, the electricity to the electric heater (1) is stopped. The temperature overshoot afterward is small due to the heat taken away by the large amount of fuel passing through the vaporizer (2), whereas the undershoot after the temperature has fallen and energization has started is due to the same reason. It has become a big thing.
（ハ）の燃料供給量が最少の時にはこれと逆のことが言
え、これらを全て考え合わせると実際に液体燃料燃焼装
置が運転された時の気化装置（２）の温度の上下変動幅
はさらに大きなものとなる。The opposite is true when the fuel supply amount in (c) is at its minimum, and when all of these are taken into account, the range of vertical fluctuations in the temperature of the vaporizer (2) when the liquid fuel combustion device is actually operated is even greater. It becomes something big.
また、これとは別の制御方法として電熱ヒーター（１）
へ供給される電力を比例制御によってコントロールする
方式もあるが、比較的大きな電力を周期的に変動させる
ことはノイズの発生につながり、電源を共用する他の電
気器具への影響などから好ましいとは言えない。In addition, as another control method, electric heater (1)
There is also a method to control the power supplied to the power supply by proportional control, but it is not preferable to periodically fluctuate the relatively large power because it can lead to the generation of noise and affect other appliances that share the power supply. I can not say.
［発明が解決しようとする問題点コ
前述のごと〈従来ひろく用いられていた気化装置（２）
の温度制御方法、すなわち予め定められた温度を中心に
、温度センサー（６）の検出温度がこれよりも高い時は
電熱ヒーター（１）をＯＦＦ、低い時には電熱ヒーター
（１）をＯＮさせて制御行う方法ではＯＮ、ＯＦＦに伴
う気化装置（２）の周期的温度変動が大きく気化装置（
２）温度を一定に保フて燃焼状態を安定させたいとの要
求に対して十分満足を与えるものではなかった。[Problems to be solved by the invention As mentioned above〈Vaporizers widely used in the past (2)
The temperature control method is based on a predetermined temperature, and when the temperature detected by the temperature sensor (6) is higher than this, the electric heater (1) is turned off, and when it is lower than this, the electric heater (1) is turned on. In this method, periodic temperature fluctuations in the vaporizer (2) due to ON and OFF operations are large.
2) It did not fully satisfy the demand for stabilizing the combustion state by keeping the temperature constant.
［問題点を解決するための手段］
前述のごとき事情において本発明は、気化装置（２）が
気化を継続している間は温度センサー（６）が気化装置
（２）の温度検出を行うとともに、検出した温度Ｔが時
間とともに低下している時は電熱ヒーター（１）への通
電が行われ２反対に検出した温度Ｔが時間とともに上昇
している時は電熱ヒーター（１）への通電が停止される
ことを特徴としている。また、この制御は検出温度が一
定温度の範囲（Ｔ （ｈｉｇｈ）〜Ｔ（ｌｏｗ））内に
ある時にのみ行われ範囲上限（Ｔ （ｈｉｇｈ））を越
えて高い時には常に電熱ヒーター（１）への通電が停止
され、範囲下限（Ｔ（ｌｏｗ））以下の時には常に電熱
ヒーター（１）への通電が行われる様構成されている。[Means for Solving the Problems] In the circumstances described above, the present invention provides that while the vaporizer (2) continues to vaporize, the temperature sensor (6) detects the temperature of the vaporizer (2), and When the detected temperature T is decreasing with time, the electric heater (1) is energized, and on the other hand, when the detected temperature T is increasing with time, the electric heater (1) is not energized. It is characterized by being stopped. In addition, this control is performed only when the detected temperature is within a certain temperature range (T (high) to T (low)), and when it is higher than the upper limit of the range (T (high)), the electric heater (1) is always activated. The electric heater (1) is configured to be energized so that the electric heater (1) is always energized when the temperature is below the lower limit of the range (T (low)).
ざらにＴ（ｈｉｇｈ）は、燃料供給量が多く電熱ヒータ
ー（１）への通電回復後も温度の降下の幅が大きいと予
想されるときは予め高めに設定され９反対に燃料供給量
が少なく通電回復後の温度降下の幅が少ないと予想され
るときは予め低めに設定されている。同様にＴ（ｌｏｗ
）は、燃料供給量が多く電熱ヒーター（１）への通電停
止後、余熱による温度の上昇が多く望めないと予想され
る時は予め高めに設定され、反対に燃料供給量が少なく
通電停止後の温度上昇が大きいと予想される時は低めに
設定される。Zarani T (high) is set high in advance when the amount of fuel supplied is large and the range of temperature drop is expected to be large even after electricity is restored to the electric heater (1).9On the contrary, when the amount of fuel supplied is small When it is expected that the range of temperature drop after restoration of electricity is small, it is set to a lower value in advance. Similarly, T(low
) is set higher in advance when the amount of fuel supplied is large and it is expected that the temperature will not rise much due to residual heat after the power supply to the electric heater (1) is stopped. When a large temperature rise is expected, the temperature is set lower.
［実施例］
第四図は温度センサー（６）で検出される気化装置（２
）温度の変化を時間を横軸にして表したグラフである０
本発明の制御方法を用いた場合の温度の変化は実線で表
され、燃焼継続中気化装置（２）温度が下限のビークＱ
’より次第に上昇してＴ（１ＯＷ）を越えるとここで制
御回路が温度が時間とともに上昇していることを知り、
電熱ヒーター（１）への通電停止を指令する０通電が停
止されても気化装置（２）の持つ余熱によって温度の上
昇は続き、やがてビークＱを示した後降下を開始する。[Example] Figure 4 shows the vaporization device (2) detected by the temperature sensor (6).
) is a graph showing the change in temperature with time as the horizontal axis.
The change in temperature when using the control method of the present invention is represented by a solid line, and the temperature of the vaporizer (2) is at the lower limit during continuous combustion.
'When the temperature gradually increases and exceeds T(1OW), the control circuit knows that the temperature is increasing with time.
Even if the energization is stopped, the temperature continues to rise due to the residual heat of the vaporizer (2), and eventually reaches a peak Q and then begins to fall.
しカルながらこのビークはＴ （ｈｉｇｈ）よりも温度
゛の高い位置にあるため、電熱ヒーター（１）への通電
は温度がＴ （ｈｉｇｈ）を越えて降下するまでは再開
されない。However, since this beak is at a position where the temperature is higher than T (high), energization to the electric heater (1) is not resumed until the temperature drops above T (high).
第四図中２点線で表されたグラフは第一図に示された従
来までの制御を用いた時の温度の変化の推移を同一スケ
ールで重ね合わせたものであるが、これによる温度の変
化幅（ｐ）は本発明の制御方法によって制御された時の
変化＠（ｑ）に比べて広くなっている。これは従来の方
法が常に固定された一定の温度Ｔｏを境にして電熱ヒー
ター（１）の０Ｎ−ＯＦＦを行っていたためにその後の
オーバーシュート（Ｐ＝Ｔｏ）、アンダーシュー）（Ｔ
、）〜Ｐ’）の影響がそのまま重ね合わされていたこと
に対し９本発明による制御方法では上昇から下降、又は
下降から上昇へ移る変化を従来よりいち早く検知して修
正を加えることが出来、オーバーシュート、アンダーシ
ュートの影響をＴ （ｈｉｇｈ）〜７（ｌｏｗ）の幅だ
け相殺することができるからである。The graph indicated by the two-dot line in Figure 4 is a superimposition of the changes in temperature when using the conventional control shown in Figure 1 on the same scale. The width (p) is wider than the change @(q) when controlled by the control method of the present invention. This is because in the conventional method, the electric heater (1) was always turned off at a fixed temperature To, resulting in overshoot (P=To), undershoe) (T
, ) ~ P') were simply superimposed on each other.9 However, the control method according to the present invention can detect changes from rising to falling or from falling to rising earlier than before and make corrections. This is because the influence of shoot and undershoot can be offset by a width of T (high) to 7 (low).
第五図は本発明の制御方法を用いた時の気化装置（２）
の温度変化の様子を第三図同様燃料供給量を（イ）最大
、（０）中間（第四図に相当）、（ハ）最少と分けて示
したものである。燃料供給量を可変するために制御回路
が送油ポンプ（８）の出力を可変すると、これに合わせ
てＴ （ｈｉｇｈ）及びＴ（ｔｏｗ）の設定値が移動し
＋ Ｔ（ｈｉｇｈ）、 Ｔ（ｌｏｗ）ともにくイ）最大
の供給量の時は設定値を高く、（ハ）最少の時は低くす
ることにより、気化装置（２）温度が上昇してＴ（ｌｏ
ｗ）を越えた後余熱によるその後の温度上昇の割合が異
なっても高温側のピークの値は大きく変わらない様に制
御することができると同様に、温度が下降してＴ （ｈ
ｉｇｈ）を越えた後燃油によって奪われる熱によるその
後の温度降下の割合が異なフても低温側のピークの値も
大きく変わらない様に制御できる。Figure 5 shows a vaporizer (2) when using the control method of the present invention.
Similar to Figure 3, the temperature change is shown by dividing the fuel supply amount into (a) maximum, (0) intermediate (corresponding to Figure 4), and (c) minimum. When the control circuit varies the output of the oil feed pump (8) in order to vary the amount of fuel supplied, the set values of T (high) and T (tow) move accordingly, resulting in +T (high), T( By setting the set value high when the supply amount is the maximum (a) and low when the supply amount is the minimum (c), the temperature of the vaporizer (2) increases and T(lo
Even if the rate of subsequent temperature rise due to residual heat after exceeding w) is different, the peak value on the high temperature side can be controlled so as not to change greatly.
It is possible to control the peak value on the low temperature side so that it does not change greatly even if the rate of subsequent temperature drop due to the heat removed by the fuel after exceeding igh) is different.
［発明の効果］
本発明は以上の様に構成されてい条ので、液体燃料燃焼
装置が燃焼を継続中、電熱ヒーター（１）のＯＮ・ＯＦ
Ｆに伴う気化装置（２）の温度変化の幅を従来より小さ
く抑えることができ、温度変化に起因する赤火の発生、
未気化燃油の噴出（以上は気化装置温度が最適温度より
低いとき）、あるいはリフト燃焼、異常音の発生（以上
は気化装置が最適温度より高いとき）などを防止し、常
に安定した青炎燃焼を行うことができる。[Effects of the Invention] Since the present invention is configured as described above, while the liquid fuel combustion device continues combustion, the electric heater (1) can be turned on and off.
The range of temperature changes in the vaporizer (2) caused by F can be suppressed to a smaller extent than before, and the occurrence of red flames due to temperature changes can be suppressed.
Always stable blue flame combustion by preventing spouting of unvaporized fuel (when the vaporizer temperature is lower than the optimum temperature), lift combustion, and abnormal noise (when the vaporizer temperature is higher than the optimum temperature), etc. It can be performed.
【図面の簡単な説明】
第一図は本発明に係わる液体燃料燃焼装置の一実施例を
示す構成図、第二図は従来方法により制御された気化装
置温度の変化を表したグラフ、第三図は第二図に表した
グラフをさらに燃料供給量の多少に分けて表現したグラ
フ、第四図は本発明の制御方法を用いて制御された気化
装置温度の変化を表したグラフ、第五図は第四図に表し
たグラフをさらに燃料供給量の多少に分けて表現したグ
ラフである。
（１）・・・・・・電熱ヒーター、（２）・・・・・・
気化装置、（６）・・・・・・温度センサー。
特許出願人 ダイニチ工業株式会社代表者
佐々木 交雑
カ２凹
嘱３刀
溺乙１２[Brief Description of the Drawings] Figure 1 is a configuration diagram showing an embodiment of the liquid fuel combustion device according to the present invention, Figure 2 is a graph showing changes in the temperature of the vaporizer controlled by the conventional method, and Figure 3 is a graph showing changes in the temperature of the vaporizer controlled by the conventional method. The graph shown in Figure 2 is a graph that further divides the graph shown in Figure 2 into different amounts of fuel supply, Figure 4 is a graph that shows changes in vaporizer temperature controlled using the control method of the present invention, and Figure 5 The figure is a graph that further divides the graph shown in Figure 4 into different amounts of fuel supply. (1)・・・Electric heater, (2)・・・・・・
Vaporizer, (6)...Temperature sensor. Patent applicant Representative of Dainichi Industries Co., Ltd.
Sasaki crossbreeding force 2 concave 3 swords 12
Claims (4)
とに内蔵された電熱ヒーターの通電を制御する気化装置
を有し、この気化装置に液体燃料を供給して気化し、こ
の気化ガスをバーナーに導いて燃焼をおこなう液体燃料
燃焼装置において、気化継続中は温度センサーが気化装
置温度の検出を行うとともに、気化装置温度が液体燃料
供給量に応じて設定された温度Ｔ（ｈｉｇｈ）と、同じ
く液体燃料供給量に応じて設定され、温度Ｔ（ｈｉｇｈ
）よりも低い温度Ｔ（ｌｏｗ）との間にあるときには、
温度センサーが検出する気化装置温度Ｔが時間とともに
低下しているとき電熱ヒーターへの通電が行われ、時間
とともに上昇しているときは電熱ヒーターへの通電が停
止されることを特徴とする液体燃料燃焼装置の気化装置
の温度制御方法。(1) It has a vaporizer that controls the energization of the built-in electric heater based on temperature information from the attached temperature sensor, and liquid fuel is supplied to this vaporizer and vaporized, and this vaporized gas is sent to the burner. In a liquid fuel combustion device that conducts combustion by guiding liquid fuel, a temperature sensor detects the temperature of the vaporizer while vaporization continues, and the temperature of the vaporizer is the same as the temperature T (high) set according to the amount of liquid fuel supplied. The temperature T (high
), when the temperature is between T (low), which is lower than
A liquid fuel characterized in that when the vaporizer temperature T detected by a temperature sensor is decreasing over time, the electric heater is energized, and when it is rising over time, the electric heater is de-energized. A method for controlling the temperature of a vaporizer in a combustion device.
）よりも高いときは常に電熱ヒーターの通電を停止し、
温度Ｔ（ｌｏｗ）よりも低い時は常に通電を行うことと
した特許請求の範囲第一項記載の液体燃料燃焼装置の気
化装置の温度制御方法。(2) While vaporization continues, the vaporizer temperature T is high
), the electric heater is always de-energized,
A method for controlling the temperature of a vaporizer of a liquid fuel combustion apparatus according to claim 1, wherein electricity is always supplied when the temperature is lower than temperature T (low).
く、液体燃料供給量が少ない時は低く設定されたことを
特徴とする特許請求の範囲第一項記載の液体燃料燃焼装
置の気化装置の温度制御方法。(3) The liquid fuel combustion device according to claim 1, wherein the temperature T (low) is set high when the amount of liquid fuel supplied is large and set low when the amount of liquid fuel supplied is small. Temperature control method for vaporizer.
高く、液体燃料供給量が少ない時は低く設定されたこと
を特徴とする特許請求の範囲第一項記載の液体燃料燃焼
装置の気化装置の温度制御方法。(4) The temperature T (high) is set high when the amount of liquid fuel supplied is large and set low when the amount of liquid fuel supplied is small. Temperature control method for vaporizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61311224A JPS63163713A (en) | 1986-12-26 | 1986-12-26 | Temp. control method for vaporizer of liquid fuel combustion apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61311224A JPS63163713A (en) | 1986-12-26 | 1986-12-26 | Temp. control method for vaporizer of liquid fuel combustion apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63163713A true JPS63163713A (en) | 1988-07-07 |
Family
ID=18014589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61311224A Pending JPS63163713A (en) | 1986-12-26 | 1986-12-26 | Temp. control method for vaporizer of liquid fuel combustion apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63163713A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02259314A (en) * | 1989-03-30 | 1990-10-22 | Noritz Corp | Petroleum combustion device |
| JPH04151425A (en) * | 1990-10-13 | 1992-05-25 | Sharp Corp | Method and apparatus for controlling temperature of evaporator of room heater |
| JPH0534439U (en) * | 1991-09-20 | 1993-05-07 | 株式会社日立ホームテツク | Oil fan heater |
| JP2008151428A (en) * | 2006-12-19 | 2008-07-03 | Dainichi Co Ltd | Combustion apparatus |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6044686A (en) * | 1983-08-22 | 1985-03-09 | 株式会社新潟鐵工所 | Joining structure |
| JPS611916A (en) * | 1984-06-14 | 1986-01-07 | Toshiba Heating Appliances Co | Temperature controller of carburetor in evaporation type burner |
| JPS6146841A (en) * | 1984-08-11 | 1986-03-07 | Matsushita Electric Ind Co Ltd | Hot water feeder with operation display unit |
-
1986
- 1986-12-26 JP JP61311224A patent/JPS63163713A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6044686A (en) * | 1983-08-22 | 1985-03-09 | 株式会社新潟鐵工所 | Joining structure |
| JPS611916A (en) * | 1984-06-14 | 1986-01-07 | Toshiba Heating Appliances Co | Temperature controller of carburetor in evaporation type burner |
| JPS6146841A (en) * | 1984-08-11 | 1986-03-07 | Matsushita Electric Ind Co Ltd | Hot water feeder with operation display unit |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02259314A (en) * | 1989-03-30 | 1990-10-22 | Noritz Corp | Petroleum combustion device |
| JPH04151425A (en) * | 1990-10-13 | 1992-05-25 | Sharp Corp | Method and apparatus for controlling temperature of evaporator of room heater |
| JPH0534439U (en) * | 1991-09-20 | 1993-05-07 | 株式会社日立ホームテツク | Oil fan heater |
| JP2008151428A (en) * | 2006-12-19 | 2008-07-03 | Dainichi Co Ltd | Combustion apparatus |
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