JP2004281250A - Temperature controlling device of liquid heating supply equipment - Google Patents

Temperature controlling device of liquid heating supply equipment Download PDF

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Publication number
JP2004281250A
JP2004281250A JP2003071523A JP2003071523A JP2004281250A JP 2004281250 A JP2004281250 A JP 2004281250A JP 2003071523 A JP2003071523 A JP 2003071523A JP 2003071523 A JP2003071523 A JP 2003071523A JP 2004281250 A JP2004281250 A JP 2004281250A
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temperature
liquid material
control device
liquid
electromagnetic induction
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Kazuo Uchigasaki
一夫 内ヶ崎
Atsushi Nakajima
淳 中嶋
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Totoku Electric Co Ltd
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Totoku Electric Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a temperature controlling device with improved accuracy capable of controlling temperature with safety and in good order, irrespective of breaking of a temperature sensor, or low or high lands, without any problem of quality deterioration due to local overheating or the like, and without burnout of an electromagnetic induction coil, as a temperature controlling device of a liquid heating supply equipment for a fluid matter. <P>SOLUTION: The temperature controlling device 10 of the liquid heating supply equipment heating a fluid matter stored in a tank by an electromagnetic induction heating system with the use of an IH coil and equipped with a stirring function of making temperature of the fluid matter uniform is provided with a fluid matter temperature sensor 1 for making the temperature of the fluid matter constant, a control circuit breaking a power source of the IH coil after an elapse of a given time when the temperature sensor 1 is not operated, and further, a temperature non-reaching time power source breaking circuit, low-temperature control circuit, local overheating prevention circuit, empty heating prevention circuit, and heating upper limit setting circuit. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

【０００１】
【発明の属する技術分野】
本発明は、液状物、例えば水、スープ、カレー、シチュー、接着剤等の加熱供給装置において、液状物を安全、好適に長時間加熱保温できる温度制御装置に関するものである。
【０００２】
【従来の技術】
従来技術として、下記特許文献１の「溶解加熱装置」は、アルミ、亜鉛、錫、鉛等の金属の加熱溶解装置ではあるが、その図２（本発明の図３に示す）には、被溶解物２’を一端挿入部３’から挿入して他端排出部４’へ送る通路１’と、一端挿入部３’から挿入された固体状の被溶解物２ａ’を、通路１’を包囲して電磁誘導加熱で急速溶解する第１コイル５’と、該第１コイル５’で溶解されて液体状となって他端排出部４’から流出する被溶解物２ｂ’を溜込む保温用容器１６’と、該保温用容器１６’を包囲して溜込んだ液体状被溶解物２ｂ’を電磁誘導加熱で保温する第３コイル１７’と、が示されている。また２１’は温度計であり、該温度計２１’にて検出した保温用容器１６’内の液体状被溶解物２ｂ’の温度が所望の設定温度となるように、第３コイル１７’にはインバータ２０’から高周波電流が供給され、電磁誘導加熱によって常時制御されるとの記載がある。なお１８’は液面計であり、該液面計１８’が保温用容器１６’内の液体状被溶解物２ｂ’の液面を検知するまで、インバータ１９’から第１コイル５’に高周波電流を連続供給して、順次投入される固体状被溶解物２ａ’の急速溶解を続け、液面計１８’が保温用容器１６’内の液体状被溶解物２ｂ’の液面を検知して所定貯蔵量となれば、インバータ１９’の出力及び固体状被溶解物２ａ’の投入を停止するものである。
しかしながら、上記「溶解加熱装置」には、電磁誘導加熱によって常時制御されるとの記載があるが、より精度が優れ安全良好に温度制御ができる温度制御装置については記載されていない。
【０００３】
【特許文献１】
特開平５−１７４９６２
【０００４】
【発明が解決しようとする課題】
液体加熱供給装置の温度制御装置を実際に使用する場合、液状物の加熱に電磁誘導コイル（以下、ＩＨコイルと略記する）を用い、電磁誘導加熱方式（以下、ＩＨ方式と略記する）で加熱する場合、ＩＨ方式は例えば１２００ｗと強力であるため、温度制御装置のセンサーが切断して温度がコントロールされない場合は、前記液状物の品質が劣化するのみならず、ＩＨコイルの温度が上昇し、ついにはコイルが焼損してしまうという問題点があった。また海抜（標高）の高い高地になるに従って気圧が低下し、液状物（水等の液体も含む）の沸点が下がってしまうため、低地と同じ設定温度の場合には、電源が入りっぱなしの状態になることがあり、液状物の品質が劣化し、甚だしい場合には、焦げ付き等が生じてしまい、所望の品質が維持できなくなってしまうという問題点があった。また液状物の粘度や残量によっては、所定の電力では急激な温度変化をして局部過熱等による品質劣化の問題があった。また液状物を加熱する場合の最高温度の設定は、ダイヤル目盛りやデジタル目盛で、手動で設定できるものが知られているが、使用者は、標高何メートルのときは何度に設定すればよいか分からず、また使用場所の標高も良く分からないので最初の設定のまま使用している状態であった。従って、例えば海抜の低い低地で最高温度を設定したままの状態で、海抜の高い高地に持っていって使用された場合には、電源が入りっぱなしの状態でも、設定した最高温度まで上がらず、ＩＨコイルが焼損してしまうという問題点があった。また逆に、海抜の高い高地で最高温度を設定したままの状態で、海抜の低い低地に持っていって使用された場合には、電源が早めに切れ、必要とする最高温度まで上がらず、液状物の状態が悪くなるという問題点があった。
【０００５】
本発明は、上記従来技術が有する各種問題点を解決するためになされたものであり、液状物の液体加熱供給装置の温度制御装置として、温度センサーの断線や低地高地に関係なく、また局部過熱等による品質劣化の問題がなく、またＩＨコイルの焼損がなく、より精度が優れ安全良好に温度制御ができる温度制御装置を提供することを目的とする。
【０００６】
【課題を解決するための手段】
第１の観点として本発明は、タンクに貯留された液状物を、ＩＨコイルを用いＩＨ方式で加熱し、また液状物の温度を均一にする攪拌機能を有する液体加熱供給装置の温度制御装置であって、前記温度制御装置は液状物の温度を一定にするための温度センサー及びこの制御回路を有し、更に前記温度センサーが作動しない場合には、所定時間経過後にＩＨコイルの電源（以下、ＩＨ電源と略記する）を切断するための制御回路（以下、電源切断回路と略記する）を有することを特徴とする液体加熱供給装置の温度制御装置にある。
上記第１観点の温度制御装置では、上記温度センサー、液状物温度を均一にする攪拌機能、および温度センサーが作動しない場合には所定時間経過後にＩＨ電源を切断する電源切断回路を有するので、温度センサーが断線等により作動しない場合でも液体加熱供給装置の温度制御装置としてＩＨコイルの焼損等が防止でき、安全な遮断機能を有する温度制御ができる。
【０００７】
第２の観点として本発明は、タンクに貯留された液状物を、ＩＨコイルを用いＩＨ方式で加熱し、また液状物の温度を均一にする攪拌機能を有する液体加熱供給装置の温度制御装置であって、前記温度制御装置は液状物の温度を一定にするための温度センサー及びこの制御回路を有し、更に前記ＩＨコイルが通電状態で、所定時間経過後にも液状物の温度が所定温度に達しない時は、それを検知し、ＩＨ電源を切断するための制御回路（以下、温度未到達時電源切断回路と略記する）を有することを特徴とする液体加熱供給装置の温度制御装置にある。
なお、所定時間経過後にも液状物の温度が所定温度、例えば設定温度に達しない場合とは、例えば、海抜（標高）の高い高地になるに従って気圧が低下し、液状物（水等の液体も含む）の沸点が下がってしまうため、低地と同じ設定温度の場合には、電源が入りっぱなしの状態になる場合である。
上記第２観点の温度制御装置では、上記第１観点の温度センサー、液状物の温度を均一にする攪拌機能に加え、前記ＩＨコイルが通電状態であっても液状物の温度が所定温度に達しない時は、所定時間経過後にＩＨ電源を切断する温度未到達時電源切断回路を有するので、液状物の液体加熱供給装置の温度制御装置として、低地、高地に関係なく、ＩＨコイルの焼損等の防止ができ、より安全な遮断機能を有する温度制御ができる。
【０００８】
第３の観点として本発明は、タンクに貯留された液状物を、ＩＨコイルを用いＩＨ方式で加熱し、また液状物の温度を均一にする攪拌機能を有する液体加熱供給装置の温度制御装置であって、前記温度制御装置は液状物の温度を一定にするための温度センサー及びこの制御回路を有し、更に前記ＩＨコイルが通電状態で、所定時間経過後にも液状物の到達温度が設定温度に達しない時は、それを検知し、到達温度よりも低い温度で温度制御するための制御回路（以下、低温度制御回路と略記する）を有することを特徴とする液体加熱供給装置の温度制御装置にある。
上記第３観点の温度制御装置では、上記第１観点の温度センサー、液状物の温度を均一にする攪拌機能に加え、所定時間後に所定温度、例えば設定温度に達しない場合はＩＨ電源を切断しないで、設定温度より低い温度、例えば１〜５℃低い温度で制御する低温度制御回路を有するので、低地、高地に関係なく、ＩＨコイルの焼損等の防止もでき、より精度が優れ、安全良好に温度制御ができる。
【０００９】
第４の観点として本発明は、タンクに貯留された液状物を、ＩＨコイルを用いＩＨ方式で加熱し、また液状物の温度を均一にする攪拌機能を有する液体加熱供給装置の温度制御装置であって、
前記温度制御装置は液状物の温度を一定にするための温度センサー及びこの制御回路を有し、更に前記ＩＨコイルが通電状態で、温度センサーにより液状物温度の急峻な温度上昇変化を検知し、その間の投入積算電力から液状物残量を判断し、水の基準制御データに則した電力制御をして局部過熱を防止する制御回路（以下、局部過熱防止回路と略記する）を有することを特徴とする液体加熱供給装置の温度制御装置にある。
上記第４観点の温度制御装置では、上記第１観点の温度センサー、液状物の温度を均一にする攪拌機能に加え、ＩＨコイルが通電状態で、液状物温度が所定時間経過後急激な温度変化をしても、その間の投入積算電力を計算して、水の基準制御データに則した電力制御、例えば電力下限制御をする局部過熱防止回路を有するので、液状物の局部過熱による品質劣化を防止でき、より精度が優れ、安全良好に温度制御ができる。
【００１０】
第５の観点として本発明は、タンクに貯留された液状物を、ＩＨコイルを用いＩＨ方式で加熱し、また液状物の温度を均一にする攪拌機能を有する液体加熱供給装置の温度制御装置であって、
前記温度制御装置は液状物の温度を一定にするための温度センサー及びこの制御回路を有し、更にＩＨコイルが通電状態で、温度センサーにより液状物温度の急峻な温度上昇変化を検知し、その間の投入積算電力から液状物残量を判断して水の基準制御データに則した電力制御をしても温度制御が出来ない場合は、電源を切断しカラダキを防止する制御回路（以下、カラダキ防止回路と略記する）を有することを特徴とする液体加熱供給装置の温度制御装置にある。
上記第５観点の温度制御装置では、上記第１観点の温度センサー、液状物の温度を均一にする攪拌機能に加え、上記第４観点のように、投入積算電力と液状物の温度を水の基準温度制御データと比較して水の基準制御データに追従するように電力を落として制御しても温度制御ができない場合は、電源を切断するカラダキ防止機能を有するので、タンクに入った液状物の残量が少ない状態でＩＨコイルを通電した場合でも、カラダキが防止でき、またＩＨコイルの焼損やコイルを格納するボビンの熱変形等が防止でき、安全面からも好ましい。
【００１１】
第６の観点として本発明は、タンクに貯留された液状物を、ＩＨコイルを用いＩＨ方式で加熱し、また液状物の温度を均一にする攪拌機能を有する液体加熱供給装置の温度制御装置であって、前記温度制御装置は液状物の温度を一定にするための温度センサー及びこの制御回路を有し、更に気圧センサーにより液状物の蒸発温度を算出し、加熱上限値を設定して温度制御するための制御回路（以下、加熱上限値設定回路と略記する）を有することを特徴とする液体加熱供給装置の温度制御装置にある。
上記第６観点の温度制御装置では、上記第１観点の温度センサー、液状物の温度を均一にする攪拌機能に加え、加熱上限値設定回路により、気圧の違いによる水の沸点温度をデータとして有しているので、例えば温度設定値が１気圧の地点で設定されても、使用場所における気圧センサーの値から設定温度を換算した温度（加熱上限値）で加熱することができ、低地、高地に関係なく、より精度が優れ、安全良好に温度制御ができる。
【００１２】
第７の観点として本発明は、タンクに貯留された液状物を、ＩＨコイルを用いＩＨ方式で加熱し、また液状物の温度を均一にする攪拌機能を有する液体加熱供給装置の温度制御装置であって、前記温度制御装置は、上記第１〜６観点の温度制御装置を適宜組み合わせた装置であることを特徴とする液体加熱供給装置の温度制御装置にある。
上記第７観点の温度制御装置では、上記第１〜６観点の温度制御装置を適宜組み合わせた装置であるので、それぞれの観点の効果がプラスされより好ましい装置となる。
【００１３】
【発明の実施の形態】
以下、本発明の内容を、図に示す実施の形態により更に詳細に説明する。なお、これにより本発明が限定されるものではない。
図１は、本発明の液体加熱供給装置の温度制御装置の一例を示す略図である。また図２は、本発明の温度制御装置を用いた液体加熱供給装置の一例を示す略図である。
これらの図において、１は液状物温度センサー、２は気圧センサー、３はコイル温度センサー、１０は温度制御装置、１１はタンク、１２は液状物、１３は電磁加熱コイル、１４は攪拌モーター、１５はシャフト、１６は攪拌はね、１７はコイルボックス、１８はデスペンサー、２０は液体加熱供給装置、ｃは制御回路、ｈはＩＨ電源、ｓは操作パネル、またｔはＡＣ電源である。
【００１４】
−第１の実施の形態−
本発明の温度制御装置の第１実施形態について図１、図２を用いて説明する。なお、図１の温度制御装置は、本発明の温度制御装置の全ての構成要素が含まれているものである。
本発明の温度制御装置１０は、例えば図２に示すように、タンク１１に貯留された液状物１２を加熱するためコイルボックス１７に収納されたＩＨコイル１３（図示せず）、および液状物１２をシャフト１５の先端に設けた攪拌はね１６により攪拌する攪拌モーター１４を有し、所定量の液状物１２を一定量吐出するデスペンサー１８により容器１９に分注することが可能な液体加熱供給装置２０の温度制御に用いられるものである。
また本発明の温度制御装置１０は図１に示すように、液状物１２の温度を一定にするための液状物温度センサー１及びこの制御回路を有し、更にこの他に、第１構成要素として、前記温度センサー１が作動しない場合には、所定時間経過後にＩＨコイル１３の電源を切断する制御回路（電源切断回路）を有する。
第２構成要素として、前記ＩＨコイル１３が通電状態で、所定時間経過後にも液状物１２の温度が所定温度、例えば設定温度に達しない時は、それを検知し、電源を切断する制御回路（温度未到達時電源切断回路）を有する。
第３構成要素として、前記ＩＨコイル１３が通電状態で、所定時間経過後にも液状物１２の温度が所定温度、例えば設定温度に達しない時は、それを検知し、所定時間経過後の液状物温度よりも低い温度、例えば１〜５℃低い温度で温度制御する制御回路（低温度制御回路）を有する。
第４構成要素として、前記ＩＨコイル１３が通電状態で、温度センサー１により液状物温度の急峻な温度上昇変化を検知し、その間の投入積算電力から液状物残量を判断し、水の基準制御データに則した電力制御をして局部過熱を防止する制御回路（局部過熱防止回路）を有する。
第５構成要素として、前記ＩＨコイル１３が通電状態で、温度センサー１により液状物温度の急峻な温度上昇変化を検知し、その間の投入積算電力から液状物残量を判断して水の基準制御データに則した電力制御をしても温度制御が出来ない場合は、電源を切断してカラダキを防止する制御回路（カラダキ防止回路）を有する。
第６構成要素として、気圧センサー２により液状物１２の蒸発温度を算出し、加熱上限値を設定して温度制御する制御回路（加熱上限値設定回路）を有する。
【００１５】
上記電源切断回路、温度未到達時電源切断回路、低温度制御回路、局部過熱防止回路、カラダキ防止回路、および加熱上限値設定回路はマイコンを有し、プログラムにより作動するが、詳細については図示しない。なお、コイルボックス１７内にＩＨコイル１３の温度をチェックするコイル温度センサー３を設けるとより好ましい。
また前記液状物温度センサー１、コイル温度センサー３としては、例えばサーミスタ、熱電対、白金抵抗体が用いられるが、大きさ、精度、価格等を考慮するとサーミスタが好ましい。また前記タンク１１はステンレス製で、容量は例えば８Ｌである。また前記攪拌はね１６はステンレス製で、シャフト１５の先端に２枚取り付けられている。また前記攪拌モーター１４は例えばＡＣモーターである。また前記デスペンサー１８はステンレス製で、例えば電磁バルブが用いられ、１００ｍｌから３００ｍｌが任意に選べる。また前記ＩＨコイル１３は、例えばポリエステルイミド銅線を巻線したコイルで、出力は例えば１．２ｋＷであり、コイルボックス１７内に配置される。また前記液状物温度センサー１は、タンク１１の内部で液状物１２に浸漬するように取り付けられる。また前記気圧センサー２の取り付け位置は制御回路ｃの近辺でよい。また前記コイル温度センサー３は、例えばＩＨコイル１３が収納されているコイルボックス１７内の所定部に取り付けられる。また前記ＩＨコイル１３はＩＨ電源ｈを経由してマイコンを有する制御回路ｃと接続されている。また攪拌モーター１４はドライバー（図示しない）を経由して制御回路ｃと接続されている。また前記制御回路ｃにはＡＣ電源ｔとしてＡＣ１００Ｖが供給され、またＡＣ／ＤＣコンバーター（図示せず）によりＤＣ２４Ｖが供給される。また前記制御回路ｃには操作パネルｓが接続されている。
【００１６】
【発明の効果】
本発明の第１観点の温度制御装置によれば、温度センサー及びこの制御回路を有し、更に液状物温度を均一にする攪拌機能および電源切断回路を有するので、温度センサーが断線等により作動しない場合でも液体加熱供給装置の温度制御装置としてＩＨコイルの焼損等が防止でき、安全な遮断機能を有する温度制御が出来るようになった。また本発明の第２観点の温度制御装置によれば、温度未到達時電源切断回路を有するので、液状物の液体加熱供給装置の温度制御装置として、低地、高地に関係なく、ＩＨコイルの焼損等の防止ができ、より安全な遮断機能を有する温度制御が出来るようになった。また本発明の第３観点の温度制御装置によれば、低温度制御回路を有するので、低地、高地に関係なく、ＩＨコイルの焼損等の防止もでき、より精度が優れ、安全良好に温度制御が出来るようになった。また本発明の第４観点の温度制御装置によれば、局部過熱防止回路を有するので温度制御装置として、液状物の局部過熱による品質劣化を防止でき、より精度が優れ、安全良好に温度制御が出来るようになった。また本発明の第５観点の温度制御装置によれば、カラダキ防止機能を有するのでカラダキが防止でき、またＩＨコイルの焼損やコイルを格納するボビンの熱変形等が防止でき、安全面からも好ましくなった。また本発明の第６観点の温度制御装置によれば、加熱上限値設定回路により、気圧の違いによる水の沸点温度をデータとして有しているので、例えば温度設定値（加熱上限値）が１気圧の地点で設定されても、使用場所における気圧センサーの値から設定温度を換算した温度（加熱上限値）で加熱することができ、低地、高地に関係なく、より精度が優れ、安全良好に温度制御が出来るようになった。更に本発明の第７観点の温度制御装置によれば、上記第１〜６観点の温度制御装置を適宜組み合わせた装置であるので、それぞれの観点の効果がプラスされより好ましい装置となった。
従って、本発明は産業上に寄与する効果が極めて大である。
【図面の簡単な説明】
【図１】本発明の温度制御装置を用いた液体加熱供給装置の一例を示す略図である。
【図２】本発明の液体加熱供給装置の温度制御装置の一例を示す略図である。
【図３】従来の加熱溶解装置の一例を示す略図である。
【符号の説明】
１ 液状物温度センサー
２ 気圧センサー
３ コイル温度センサー
１０ 温度制御装置
１１ タンク
１２ 液状物
１３ 電磁加熱（ＩＨ）コイル
１４ 攪拌モーター
１５ シャフト
１６ 攪拌はね
１７ コイルボックス
１８ デスペンサー
１９ 容器
２０ 液体加熱供給装置
ｃ 制御回路
ｔ ＡＣ電源
ｈ ＩＨ電源
ｓ 操作パネル[0001]
TECHNICAL FIELD OF THE INVENTION
TECHNICAL FIELD The present invention relates to a temperature control device capable of heating and maintaining a liquid material safely and suitably for a long time in a heating and supplying device for a liquid material, for example, water, soup, curry, stew, adhesive and the like.
[0002]
[Prior art]
As a conventional technique, the “melting and heating apparatus” of Patent Document 1 below is an apparatus for heating and melting metals such as aluminum, zinc, tin, and lead. FIG. 2 (shown in FIG. 3 of the present invention) shows A passage 1 ′ into which the melt 2 ′ is inserted from the insertion portion 3 ′ and sent to the discharge portion 4 ′ at the other end, and a solid material 2 a ′ inserted from the insertion portion 3 ′ are connected to the passage 1 ′. A first coil 5 'that surrounds and is rapidly melted by electromagnetic induction heating, and a heat retention that stores the substance 2b' that is melted by the first coil 5 'to be in a liquid state and flows out from the other end discharge portion 4'. Shown are a container 16 'for use and a third coil 17' for keeping the liquid to-be-dissolved substance 2b 'that surrounds and retains the heat-retaining container 16' heated by electromagnetic induction heating. Reference numeral 21 'denotes a thermometer, which is connected to the third coil 17' so that the temperature of the liquid substance 2b 'in the heat retaining container 16' detected by the thermometer 21 'becomes a desired set temperature. Describes that a high-frequency current is supplied from the inverter 20 'and is always controlled by electromagnetic induction heating. Reference numeral 18 'denotes a liquid level gauge. Until the liquid level gauge 18' detects the liquid level of the liquid substance 2b 'in the heat retaining container 16', a high frequency signal is supplied from the inverter 19 'to the first coil 5'. The electric current is continuously supplied, and the rapid dissolution of the sequentially charged solid to-be-dissolved substance 2a 'is continued, and the liquid level gauge 18' detects the liquid level of the liquid to-be-dissolved substance 2b 'in the heat retaining container 16'. When the storage amount reaches a predetermined storage amount, the output of the inverter 19 'and the charging of the solid substance 2a' are stopped.
However, there is a description in the above "melting heating device" that the temperature is always controlled by electromagnetic induction heating, but there is no description of a temperature control device which is more accurate and can perform temperature control with good safety.
[0003]
[Patent Document 1]
JP-A-5-174962
[0004]
[Problems to be solved by the invention]
When the temperature control device of the liquid heating and supplying apparatus is actually used, an electromagnetic induction coil (hereinafter abbreviated as an IH coil) is used to heat a liquid material, and heating is performed by an electromagnetic induction heating method (hereinafter abbreviated as an IH method). In this case, since the IH method is powerful, for example, 1200w, when the temperature of the sensor of the temperature control device is cut and the temperature is not controlled, not only the quality of the liquid material deteriorates, but also the temperature of the IH coil increases, Finally, there was a problem that the coil was burned out. Also, as the altitude rises above sea level (altitude), the air pressure decreases, and the boiling point of liquids (including liquids such as water) decreases. In some cases, the quality of the liquid material deteriorates, and in severe cases, there is a problem that scorching or the like occurs, and the desired quality cannot be maintained. In addition, depending on the viscosity and remaining amount of the liquid material, there is a problem that quality deteriorates due to local overheating or the like due to a sudden temperature change at a predetermined power. In addition, the setting of the maximum temperature when heating a liquid material is known as a dial scale or a digital scale, which can be manually set, but the user only has to set the number of times when the altitude is several meters. I didn't know the altitude of the place where I used it, so I used it with the initial settings. Therefore, for example, if the maximum temperature is set at a low altitude at low altitude and used at a high altitude above sea level, even if the power remains on, the temperature does not rise to the set maximum temperature. In addition, there is a problem that the IH coil is burned. Conversely, if you use the product at a low altitude with the maximum temperature set at a high altitude above sea level, the power will be cut off early and the temperature will not rise to the required maximum temperature. There was a problem that the state of the liquid material deteriorated.
[0005]
The present invention has been made in order to solve the above-mentioned various problems of the related art.As a temperature control device of a liquid heating / supplying device for a liquid material, regardless of disconnection of a temperature sensor or low altitude, local overheating It is an object of the present invention to provide a temperature control device which has no problem of quality deterioration due to the above-mentioned factors, does not cause burnout of an IH coil, and can perform temperature control with higher accuracy and safety.
[0006]
[Means for Solving the Problems]
As a first aspect, the present invention relates to a temperature control device for a liquid heating / supplying apparatus having a stirring function for heating a liquid material stored in a tank by an IH method using an IH coil and for making the temperature of the liquid material uniform. The temperature control device has a temperature sensor and a control circuit for keeping the temperature of the liquid material constant, and furthermore, when the temperature sensor does not operate, a power source of the IH coil after a lapse of a predetermined time (hereinafter, referred to as a power supply). There is provided a temperature control device for a liquid heating / supplying device, comprising a control circuit (hereinafter abbreviated as a power-off circuit) for cutting off an IH power supply.
The temperature control device according to the first aspect has the temperature sensor, a stirring function for equalizing the temperature of the liquid material, and a power supply cutoff circuit for cutting off the IH power supply after a predetermined time has elapsed when the temperature sensor does not operate. Even when the sensor does not operate due to disconnection or the like, the IH coil can be prevented from being burned as a temperature control device of the liquid heating and supplying device, and temperature control having a safe shutoff function can be performed.
[0007]
As a second aspect, the present invention relates to a temperature control device for a liquid heating / supplying device having a stirring function for heating a liquid material stored in a tank by an IH method using an IH coil and for making the temperature of the liquid material uniform. The temperature control device has a temperature sensor and a control circuit for keeping the temperature of the liquid material constant, and furthermore, when the IH coil is in an energized state, the temperature of the liquid material reaches a predetermined temperature even after a predetermined time has elapsed. When the temperature does not reach, the temperature control device of the liquid heating / supplying device has a control circuit for detecting and detecting the power supply to cut off the IH power supply (hereinafter abbreviated as a power supply cut-off circuit when the temperature has not reached). .
In addition, the case where the temperature of the liquid material does not reach the predetermined temperature, for example, the set temperature even after the lapse of the predetermined time, means that, for example, as the altitude becomes higher at sea level (altitude), the atmospheric pressure decreases, and the liquid material (liquid such as water) ) Lowers, so that at the same set temperature as the lowland, the power is kept turned on.
In the temperature control device according to the second aspect, in addition to the temperature sensor according to the first aspect and the stirring function for making the temperature of the liquid material uniform, the temperature of the liquid material reaches a predetermined temperature even when the IH coil is energized. If not, it has a power cutoff circuit when the temperature has not reached to cut off the IH power after a lapse of a predetermined time. Therefore, as a temperature control device for the liquid heating / supplying device for a liquid material, regardless of the lowland or the highland, the burnout of the IH coil, etc. Temperature can be controlled and a safer shut-off function can be performed.
[0008]
As a third aspect, the present invention relates to a temperature control device for a liquid heating / supplying device having a stirring function to heat a liquid material stored in a tank by an IH method using an IH coil and to make the temperature of the liquid material uniform. The temperature control device has a temperature sensor and a control circuit for keeping the temperature of the liquid material constant, and furthermore, when the IH coil is in an energized state, the temperature at which the liquid material reaches the set temperature even after a predetermined time has elapsed. When the temperature does not reach the temperature, a control circuit for detecting the temperature and controlling the temperature at a temperature lower than the attained temperature (hereinafter abbreviated as a low temperature control circuit) is provided. In the device.
In the temperature control device according to the third aspect, in addition to the temperature sensor according to the first aspect and the stirring function for making the temperature of the liquid material uniform, if the temperature does not reach a predetermined temperature, for example, a set temperature after a predetermined time, the IH power is not cut off. In addition, since a low temperature control circuit for controlling at a temperature lower than the set temperature, for example, at a temperature lower by 1 to 5 ° C., is provided, the IH coil can be prevented from being burned out regardless of the lowland or highland, and the accuracy is more excellent and the safety is good. Temperature control.
[0009]
As a fourth aspect, the present invention relates to a temperature control device for a liquid heating / supplying device having a stirring function to heat a liquid material stored in a tank by an IH method using an IH coil and to make the temperature of the liquid material uniform. So,
The temperature control device has a temperature sensor and a control circuit for keeping the temperature of the liquid material constant, and further, when the IH coil is in an energized state, the temperature sensor detects a steep temperature rise change of the liquid material temperature, It has a control circuit (hereinafter abbreviated as a local overheating prevention circuit) that determines the remaining amount of the liquid substance from the integrated power input during that time and controls the power according to the reference control data of water to prevent local overheating. In the temperature control device of the liquid heating supply device.
According to the temperature control device of the fourth aspect, in addition to the temperature sensor of the first aspect and the stirring function for equalizing the temperature of the liquid, the temperature of the liquid rapidly changes after a predetermined time has elapsed when the IH coil is energized. Even if it does, it has a local overheating prevention circuit that calculates the integrated power input during that time and performs power control in accordance with the reference control data of water, for example, a power lower limit control, so that quality deterioration due to local overheating of the liquid material is prevented. Temperature control with better accuracy and better safety.
[0010]
As a fifth aspect, the present invention relates to a temperature control device for a liquid heating / supplying device having a stirring function to heat a liquid material stored in a tank by an IH method using an IH coil and to make the temperature of the liquid material uniform. So,
The temperature control device has a temperature sensor and a control circuit for keeping the temperature of the liquid material constant, and further detects a sharp temperature rise change of the liquid material temperature by the temperature sensor while the IH coil is energized. If temperature control is not possible even if the power control according to the water standard control data is performed by judging the remaining amount of liquid from the integrated power input, the power supply is turned off to prevent the body Abbreviated as a circuit).
In the temperature control device according to the fifth aspect, in addition to the temperature sensor according to the first aspect and the stirring function for making the temperature of the liquid material uniform, as well as the fourth aspect, the integrated power input and the temperature of the liquid material are measured using water. If the temperature cannot be controlled even if the power is turned off so that it follows the water reference control data compared to the reference temperature control data, it has a body protection function that shuts off the power. Even when the IH coil is energized in a state where the remaining amount of the coil is small, the body can be prevented from being burnt, and the IH coil can be prevented from being burned out and the bobbin storing the coil can be prevented from being thermally deformed.
[0011]
As a sixth aspect, the present invention relates to a temperature control device for a liquid heating / supplying device having a stirring function to heat a liquid material stored in a tank by an IH method using an IH coil and to make the temperature of the liquid material uniform. The temperature control device has a temperature sensor and a control circuit for keeping the temperature of the liquid material constant, and further calculates an evaporation temperature of the liquid material by a pressure sensor, sets a heating upper limit value, and controls the temperature. The temperature control device of the liquid heating and supplying device has a control circuit (hereinafter, abbreviated as a heating upper limit value setting circuit) for performing the heating.
In the temperature control device according to the sixth aspect, in addition to the temperature sensor according to the first aspect and the stirring function for making the temperature of the liquid material uniform, the boiling point temperature of water due to the difference in air pressure is stored as data by the heating upper limit value setting circuit. Therefore, for example, even if the temperature set value is set at a point of 1 atm, it can be heated at a temperature (heating upper limit value) obtained by converting the set temperature from the value of the barometric pressure sensor at the place of use, and can be used in lowland and highland. Irrespective of this, temperature control can be performed with better accuracy and safety.
[0012]
As a seventh aspect, the present invention relates to a temperature control device for a liquid heating / supplying device having a stirring function to heat a liquid material stored in a tank by an IH method using an IH coil and to make the temperature of the liquid material uniform. The temperature control device is a device in which the temperature control devices according to the first to sixth aspects are appropriately combined, and is a temperature control device for a liquid heating / supplying device.
Since the temperature control device according to the seventh aspect is a device in which the temperature control devices according to the first to sixth aspects are appropriately combined, the effect of each aspect is added, and the device is more preferable.
[0013]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, the contents of the present invention will be described in more detail with reference to the embodiments shown in the drawings. Note that the present invention is not limited by this.
FIG. 1 is a schematic view showing an example of the temperature control device of the liquid heating and supplying device of the present invention. FIG. 2 is a schematic view showing an example of a liquid heating and supplying device using the temperature control device of the present invention.
In these figures, 1 is a liquid material temperature sensor, 2 is an atmospheric pressure sensor, 3 is a coil temperature sensor, 10 is a temperature controller, 11 is a tank, 12 is a liquid material, 13 is an electromagnetic heating coil, 14 is a stirring motor, 15 Is a shaft, 16 is a stirring spring, 17 is a coil box, 18 is a dispenser, 20 is a liquid heating and supplying device, c is a control circuit, h is an IH power supply, s is an operation panel, and t is an AC power supply.
[0014]
-1st Embodiment-
A first embodiment of the temperature control device of the present invention will be described with reference to FIGS. The temperature control device shown in FIG. 1 includes all the components of the temperature control device of the present invention.
For example, as shown in FIG. 2, the temperature control device 10 of the present invention includes an IH coil 13 (not shown) housed in a coil box 17 for heating a liquid material 12 stored in a tank 11, and a liquid material 12. Has a stirring motor 14 for stirring by a stirrer 16 provided at the tip of a shaft 15, and a liquid heating supply which can be dispensed into a container 19 by a dispenser 18 which discharges a predetermined amount of the liquid material 12. It is used for controlling the temperature of the device 20.
Further, as shown in FIG. 1, the temperature control device 10 of the present invention has a liquid material temperature sensor 1 and a control circuit for keeping the temperature of the liquid material 12 constant. When the temperature sensor 1 does not operate, there is provided a control circuit (power supply cutoff circuit) for turning off the power of the IH coil 13 after a lapse of a predetermined time.
As a second component, when the temperature of the liquid material 12 does not reach a predetermined temperature, for example, a set temperature even after a predetermined time has elapsed after the IH coil 13 is in an energized state, the control circuit detects the temperature and turns off the power supply ( Power cut-off circuit when temperature has not reached).
As a third component, when the temperature of the liquid material 12 does not reach a predetermined temperature, for example, a set temperature even after a predetermined time has elapsed after the IH coil 13 is energized, it is detected, and the liquid material 12 after a predetermined time has elapsed is detected. It has a control circuit (low temperature control circuit) that controls the temperature at a temperature lower than the temperature, for example, 1 to 5 ° C.
As a fourth component, when the IH coil 13 is energized, the temperature sensor 1 detects a steep change in the temperature of the liquid material, determines the remaining amount of the liquid material from the integrated power input during that time, and performs water reference control. It has a control circuit (local overheating prevention circuit) that performs power control according to data to prevent local overheating.
As a fifth component, when the IH coil 13 is energized, the temperature sensor 1 detects a steep rise in the temperature of the liquid material, and determines the remaining amount of the liquid material from the integrated power input during that time to control the water reference. If temperature control cannot be performed even by power control in accordance with data, a control circuit (color prevention circuit) for turning off the power supply to prevent the body from being broken is provided.
As a sixth component, there is a control circuit (heating upper limit value setting circuit) which calculates the evaporation temperature of the liquid material 12 by the pressure sensor 2 and sets the upper heating limit to control the temperature.
[0015]
The power cutoff circuit, the power cutoff circuit when the temperature has not reached, the low temperature control circuit, the local overheat prevention circuit, the body protection prevention circuit, and the heating upper limit value setting circuit have a microcomputer, and operate by a program, but details are not shown. . It is more preferable to provide the coil temperature sensor 3 for checking the temperature of the IH coil 13 in the coil box 17.
As the liquid material temperature sensor 1 and the coil temperature sensor 3, for example, a thermistor, a thermocouple, and a platinum resistor are used. However, a thermistor is preferable in consideration of the size, accuracy, price, and the like. The tank 11 is made of stainless steel and has a capacity of, for example, 8 L. The stirring spring 16 is made of stainless steel, and is attached to the tip of the shaft 15 by two pieces. The stirring motor 14 is, for example, an AC motor. The dispenser 18 is made of stainless steel, for example, an electromagnetic valve is used, and 100 ml to 300 ml can be arbitrarily selected. The IH coil 13 is a coil in which, for example, a polyesterimide copper wire is wound, has an output of, for example, 1.2 kW, and is disposed in the coil box 17. The liquid material temperature sensor 1 is mounted so as to be immersed in the liquid material 12 inside the tank 11. The pressure sensor 2 may be mounted near the control circuit c. The coil temperature sensor 3 is attached to a predetermined portion in a coil box 17 in which the IH coil 13 is stored, for example. The IH coil 13 is connected to a control circuit c having a microcomputer via an IH power supply h. The stirring motor 14 is connected to a control circuit c via a driver (not shown). The control circuit c is supplied with 100 V AC as an AC power supply t, and 24 V DC is supplied from an AC / DC converter (not shown). An operation panel s is connected to the control circuit c.
[0016]
【The invention's effect】
According to the temperature control device of the first aspect of the present invention, the temperature sensor does not operate due to disconnection or the like because it has a temperature sensor and this control circuit, and further has a stirring function and a power supply disconnection circuit for equalizing the liquid material temperature. Even in such a case, as a temperature control device of the liquid heating / supplying device, it is possible to prevent the IH coil from burning, etc., and to perform temperature control having a safe shutoff function. Further, according to the temperature control device of the second aspect of the present invention, since the temperature control device of the liquid heating / supplying device for a liquid material has a power supply cutoff circuit when the temperature has not reached, the IH coil is burned regardless of lowland or highland. The temperature control having a safer shut-off function can be performed. Further, according to the temperature control device of the third aspect of the present invention, since the temperature control device has the low temperature control circuit, it is possible to prevent the IH coil from burning, etc. irrespective of the lowland and the highland, thereby achieving more accurate and safe temperature control. Is now available. Further, according to the temperature control device of the fourth aspect of the present invention, since the temperature control device has the local overheat prevention circuit, it is possible to prevent the quality deterioration due to the local overheating of the liquid material, thereby achieving more accurate and safe temperature control. I can do it. Further, according to the temperature control device of the fifth aspect of the present invention, since the temperature control device has the function of preventing the body from being broken, the body can be prevented from being burned, and the IH coil can be prevented from being damaged, and the bobbin storing the coil can be prevented from being thermally deformed. became. Further, according to the temperature control device of the sixth aspect of the present invention, since the heating upper limit value setting circuit has as data the boiling point temperature of water due to the difference in atmospheric pressure, for example, the temperature setting value (heating upper limit value) is 1 Even if it is set at the barometric pressure point, it can be heated at the temperature (heating upper limit value) converted from the set temperature from the value of the barometric pressure sensor at the place of use, regardless of low altitude or high altitude, more accurate and safe Temperature control is now available. Further, according to the temperature control device of the seventh aspect of the present invention, since the temperature control device of the first to sixth aspects is appropriately combined, the effect of each viewpoint is added and the device is more preferable.
Therefore, the present invention has an extremely large effect of contributing to industry.
[Brief description of the drawings]
FIG. 1 is a schematic view showing an example of a liquid heating and supplying device using the temperature control device of the present invention.
FIG. 2 is a schematic diagram illustrating an example of a temperature control device of the liquid heating and supplying apparatus according to the present invention.
FIG. 3 is a schematic view showing an example of a conventional heating and melting apparatus.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Liquid material temperature sensor 2 Atmospheric pressure sensor 3 Coil temperature sensor 10 Temperature control device 11 Tank 12 Liquid material 13 Electromagnetic heating (IH) coil 14 Stirring motor 15 Shaft 16 Stirring spring 17 Coil box 18 Dispenser 19 Container 20 Liquid heating supply device c Control circuit t AC power supply h IH power supply s Operation panel

Claims (7)

タンクに貯留された液状物を、電磁誘導コイルを用い電磁誘導加熱方式で加熱し、また液状物の温度を均一にする攪拌機能を有する液体加熱供給装置の温度制御装置であって、
前記温度制御装置は液状物の温度を一定にするための温度センサー及びこの制御回路を有し、更に前記温度センサーが作動しない場合には、所定時間経過後に電磁誘導コイルの電源を切断する制御回路を有することを特徴とする液体加熱供給装置の温度制御装置。The liquid material stored in the tank is heated by an electromagnetic induction heating method using an electromagnetic induction coil, and is a temperature control device of a liquid heating supply device having a stirring function to make the temperature of the liquid material uniform,
The temperature control device has a temperature sensor for keeping the temperature of the liquid material constant and a control circuit for controlling the temperature, and furthermore, a control circuit for turning off the power of the electromagnetic induction coil after a lapse of a predetermined time when the temperature sensor does not operate. A temperature control device for a liquid heating / supplying device, comprising: タンクに貯留された液状物を、電磁誘導コイルを用い電磁誘導加熱方式で加熱し、また液状物の温度を均一にする攪拌機能を有する液体加熱供給装置の温度制御装置であって、
前記温度制御装置は液状物の温度を一定にするための温度センサー及びこの制御回路を有し、更に前記電磁誘導コイルが通電状態で、所定時間経過後にも液状物の温度が所定温度に達しない時は、それを検知し、電磁誘導コイルの電源を切断する制御回路を有することを特徴とする液体加熱供給装置の温度制御装置。The liquid material stored in the tank is heated by an electromagnetic induction heating method using an electromagnetic induction coil, and is a temperature control device of a liquid heating supply device having a stirring function to make the temperature of the liquid material uniform,
The temperature control device has a temperature sensor and a control circuit for keeping the temperature of the liquid material constant, and furthermore, the temperature of the liquid material does not reach the predetermined temperature even after a predetermined time has elapsed when the electromagnetic induction coil is in an energized state. A temperature control device for a liquid heating / supplying device, characterized by having a control circuit for detecting the time and turning off the power supply of the electromagnetic induction coil. タンクに貯留された液状物を、電磁誘導コイルを用い電磁誘導加熱方式で加熱し、また液状物の温度を均一にする攪拌機能を有する液体加熱供給装置の温度制御装置であって、
前記温度制御装置は液状物の温度を一定にするための温度センサー及びこの制御回路を有し、更に前記電磁誘導コイルが通電状態で、所定時間経過後にも液状物の温度が所定温度に達しない時は、それを検知し、所定時間経過後の液状物温度よりも低い温度で温度制御する制御回路を有することを特徴とする液体加熱供給装置の温度制御装置。The liquid material stored in the tank is heated by an electromagnetic induction heating method using an electromagnetic induction coil, and is a temperature control device of a liquid heating supply device having a stirring function to make the temperature of the liquid material uniform,
The temperature control device has a temperature sensor and a control circuit for keeping the temperature of the liquid material constant, and furthermore, the temperature of the liquid material does not reach the predetermined temperature even after a predetermined time has elapsed when the electromagnetic induction coil is in an energized state. A temperature control device for a liquid heating / supplying device, comprising: a control circuit for detecting the time, and controlling the temperature at a temperature lower than the temperature of the liquid material after a lapse of a predetermined time. タンクに貯留された液状物を、電磁誘導コイルを用い電磁誘導加熱方式で加熱し、また液状物の温度を均一にする攪拌機能を有する液体加熱供給装置の温度制御装置であって、
前記温度制御装置は液状物の温度を一定にするための温度センサー及びこの制御回路を有し、更に前記電磁誘導コイルが通電状態で、温度センサーにより液状物温度の急峻な温度上昇変化を検知し、その間の投入積算電力から液状物残量を判断し、水の基準制御データに則した電力制御をして局部過熱を防止する制御回路を有することを特徴とする液体加熱供給装置の温度制御装置。The liquid material stored in the tank is heated by an electromagnetic induction heating method using an electromagnetic induction coil, and is a temperature control device of a liquid heating supply device having a stirring function to make the temperature of the liquid material uniform,
The temperature control device has a temperature sensor and a control circuit for keeping the temperature of the liquid material constant, and further detects a steep temperature rise change of the liquid material temperature by the temperature sensor when the electromagnetic induction coil is in an energized state. A temperature control device for a liquid heating / supplying device, comprising: a control circuit for judging a remaining amount of the liquid substance from the integrated power input during that time and performing power control in accordance with water reference control data to prevent local overheating. . タンクに貯留された液状物を、電磁誘導コイルを用い電磁誘導加熱方式で加熱し、また液状物の温度を均一にする攪拌機能を有する液体加熱供給装置の温度制御装置であって、
前記温度制御装置は液状物の温度を一定にするための温度センサー及びこの制御回路を有し、更に電磁誘導コイルが通電状態で、温度センサーにより液状物温度の急峻な温度上昇変化を検知し、その間の投入積算電力から液状物残量を判断して水の基準制御データに則した電力制御をしても温度制御が出来ない場合は、電源を切断してカラダキを防止する制御回路を有することを特徴とする液体加熱供給装置の温度制御装置。The liquid material stored in the tank is heated by an electromagnetic induction heating method using an electromagnetic induction coil, and is a temperature control device of a liquid heating supply device having a stirring function to make the temperature of the liquid material uniform,
The temperature control device has a temperature sensor and a control circuit for keeping the temperature of the liquid material constant, and furthermore, when the electromagnetic induction coil is in an energized state, the temperature sensor detects a steep temperature rise change of the liquid material temperature, If temperature control is not possible even if power control according to the reference control data of water is performed by judging the remaining amount of liquid from the integrated power input during that time, have a control circuit to cut off the power supply to prevent lumps A temperature control device for a liquid heating / supplying device, comprising: タンクに貯留された液状物を、電磁誘導コイルを用い電磁誘導加熱方式で加熱し、また液状物の温度を均一にする攪拌機能を有する液体加熱供給装置の温度制御装置であって、
前記温度制御装置は液状物の温度を一定にするための温度センサー及びこの制御回路を有し、更に気圧センサーにより液状物の蒸発温度を算出し、加熱上限値を設定して温度制御する制御回路を有することを特徴とする液体加熱供給装置の温度制御装置。The liquid material stored in the tank is heated by an electromagnetic induction heating method using an electromagnetic induction coil, and is a temperature control device of a liquid heating supply device having a stirring function to make the temperature of the liquid material uniform,
The temperature control device has a temperature sensor for keeping the temperature of the liquid material constant and a control circuit for the temperature sensor, and further calculates a vaporization temperature of the liquid material using an air pressure sensor, and sets a heating upper limit to control the temperature. A temperature control device for a liquid heating / supplying device, comprising: タンクに貯留された液状物を、電磁誘導コイルを用い電磁誘導加熱方式で加熱し、また液状物の温度を均一にする攪拌機能を有する液体加熱供給装置の温度制御装置であって、
前記温度制御装置は、請求項１〜６の温度制御装置を適宜組み合わせた装置であることを特徴とする液体加熱供給装置の温度制御装置。The liquid material stored in the tank is heated by an electromagnetic induction heating method using an electromagnetic induction coil, and is a temperature control device of a liquid heating supply device having a stirring function to make the temperature of the liquid material uniform,
7. A temperature control device for a liquid heating / supplying device, wherein the temperature control device is a device obtained by appropriately combining the temperature control devices according to claim 1 to 6.
JP2003071523A 2003-03-17 2003-03-17 Temperature controlling device of liquid heating supply equipment Pending JP2004281250A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100393176C (en) * 2005-01-07 2008-06-04 四川大学 Automatic thermostatic heater
DE202009008270U1 (en) 2009-06-10 2010-11-04 Kollewe, Thomas Device for tempering a test liquid
CN103442472A (en) * 2013-08-30 2013-12-11 重庆鑫仕达包装设备有限公司 Adhesive temperature control heating device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100393176C (en) * 2005-01-07 2008-06-04 四川大学 Automatic thermostatic heater
DE202009008270U1 (en) 2009-06-10 2010-11-04 Kollewe, Thomas Device for tempering a test liquid
US8466393B2 (en) 2009-06-10 2013-06-18 Thomas Kollewe Device for tempering a test fluid
CN103442472A (en) * 2013-08-30 2013-12-11 重庆鑫仕达包装设备有限公司 Adhesive temperature control heating device

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