JP4610688B2 - Air-conditioning and hot-water supply system and control method thereof - Google Patents

Air-conditioning and hot-water supply system and control method thereof Download PDF

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Publication number
JP4610688B2
JP4610688B2 JP2000076217A JP2000076217A JP4610688B2 JP 4610688 B2 JP4610688 B2 JP 4610688B2 JP 2000076217 A JP2000076217 A JP 2000076217A JP 2000076217 A JP2000076217 A JP 2000076217A JP 4610688 B2 JP4610688 B2 JP 4610688B2
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Prior art keywords
hot water
water supply
heat exchanger
air conditioning
value
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JP2001263857A (en
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達也 堀
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Tokyo Electric Power Co Inc
Panasonic Ecology Systems Co Ltd
Daiwa House Industry Co Ltd
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Tokyo Electric Power Co Inc
Panasonic Ecology Systems Co Ltd
Daiwa House Industry Co Ltd
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  • Air Conditioning Control Device (AREA)

Description

【０００１】
【発明の属する技術分野】
本発明は、冷凍サイクルを利用した冷暖房給湯装置に関する。
【０００２】
【従来の技術】
従来、この種の冷暖房給湯装置は、特開平５−２８８４２７号公報に記載されたものが知られている。
【０００３】
以下、その冷暖房給湯装置について図２０を参照しながら説明する。
【０００４】
図２０に示すように、圧縮機１０１と給湯用熱交換器１０２と室外熱交換器１０３と空調用熱交換器１０４と膨張機構部１０５と四方弁１０６と室外熱交換器用送風機１０７と給湯用ポンプ１０８を備えることにより配管にて接続することによって周知の冷凍サイクルを構成する。
【０００５】
冷房時は圧縮機１０１で圧縮された高圧冷媒ガスが給湯用熱交換器１０２を通り、四方弁１０６にて室外熱交換器１０３を通過し、それぞれの前記熱交換器にて放熱して高圧の液冷媒となる。この高圧の液冷媒は膨張機構部１０５で減圧され低圧の２相冷媒となり空調用熱交換器１０４で水や空気などの媒体から吸熱して低圧のガス冷媒となって四方弁１０６にて圧縮機１０１に吸入して周知の冷凍サイクルを形成する。これにより、水や空気などの媒体により室内を冷房し、この排熱を給湯に利用でき効率の良い運転を可能にしている。
【０００６】
また、暖房時は圧縮機１０１で圧縮された高圧冷媒ガスが給湯用熱交換器１０２を通り、四方弁１０６にて空調用熱交換器１０４を通過し、それぞれの前記熱交換器にて放熱して高圧の液冷媒となる。この高圧の液冷媒は膨張機構部１０５で減圧され低圧の２相冷媒となり室外熱交換器１０３で吸熱して低圧のガス冷媒となって四方弁１０６にて圧縮機１０１に吸入して周知の冷凍サイクルを形成する。これにより、暖房と給湯を同時に行える運転を可能にしている。
【０００７】
また、冷房と給湯の同時運転には、室外熱交換器用送風機１０７の風量は圧縮機１０１の吐出圧力によって比例的に制御されるのが一般的で室外熱交換器用送風機１０７は設定された圧力を越えた時に起動する。
【０００８】
【発明が解決しようとする課題】
このような従来の冷暖房給湯装置では、第１に、給湯運転の必要がないときでも常に高圧冷媒ガスが給湯用熱交換器を通過するために圧力損失により効率が低下するという課題ある。
【０００９】
また、第２に、給湯条件によって給湯用熱交換器出口の冷媒が液であったりガス状態であったりするためサイクル内最適充填量が変動し、効率の低下やサイクルの不安定による信頼性の低下という課題ある。さらに、冷房と給湯を同時運転するときに給湯負荷が大きい場合には、凝縮圧力の低下により蒸発圧力の低下をまねき、空調用熱交換器の凍結による信頼性の低下という課題ある。
【００１０】
また、第３に、給湯と空調能力分配による快適性向上という課題ある。
【００１１】
また、第４に、冷房時に室外熱交換器用送風機の起動時に生じる室外熱交換器能力の急激な変化と、外気温度によっては凝縮器であるはずの室外熱交換器が蒸発器として作用することがあり、サイクルの不安定による信頼性の低下という課題ある。
【００１２】
本発明は、このような従来の課題を解決するものであり、給湯用熱交換器での圧力損失による効率が低下を抑制することができ、また、サイクル内最適充填量の変動による効率の低下やサイクルの不安定と空調用熱交換器の凍結による信頼性の低下を抑制することができ、また、給湯と空調能力分配による快適性を向上することができ、また、冷房時に室外熱交換器用送風機の起動時に生じる室外熱交換器能力の急激な変化を抑制し、外気温度によっては凝縮器であるはずの室外熱交換器が蒸発器として作用することのない冷暖房給湯装置を提供することを目的としている。
【００１５】
【課題を解決するための手段】
本発明の冷暖房給湯装置は上記目的を達成するために、圧縮機と給湯用熱交換器と室外熱交換器と空調用熱交換器と膨張機構部と四方弁と室外熱交換器用送風機からなる冷暖房給湯装置において、前記給湯用熱交換器をバイパスする配管を設け前記バイパスする配管に流量調整弁を設け、冷房と給湯を同時運転する場合には一定以下に前記流量調整弁が閉まらないようにすることで前記室外熱交換器に常に二相冷媒が流れることを特徴とするものである。
【００１６】
そして本発明によれば、冷房と給湯を同時運転する場合には、流量調整弁を開ける方向に制御すると給湯能力が減少し、流量調整弁を閉める方向に制御すると給湯能力が増加するが、一定以下に流量調整弁が閉まらないようにすることで、室外熱交換器に常に二相冷媒が流れ、サイクル内最適充填量の変動を抑制する。さらに、室外熱交換器に常に凝縮負荷を持たせることで、給湯の高負荷時にもある程度の凝縮圧力を維持することができ蒸発圧力の必要以上な低下による空調用熱交換器の凍結を改善する。また、給湯用熱交換器での圧力損失による効率が低下を抑制することができ、また、サイクル内最適充填量の変動による効率の低下やサイクルの不安定による信頼性の低下を抑制することができ、また、給湯と空調能力分配による快適性を向上することのできる冷暖房給湯装置が得られる。
【００１７】
また他の手段は、給湯用熱交換器の冷媒出入口に温度検知手段を設け、この値によって流量調整弁の動作を制御するものである。
【００１８】
そして本発明によれば、給湯用熱交換器での圧力損失による効率が低下を抑制することができ、また、サイクル内最適充填量の変動による効率の低下やサイクルの不安定による信頼性の低下を抑制することができ、また、給湯と空調能力分配による快適性を向上することのできる冷暖房給湯装置が得られる。
【００１９】
また他の手段は、給湯用熱交換器の温水出入口の双方もしくはいずれか一方に温度検知手段を設け、この値によって流量調整弁の動作を制御するものである。
【００２０】
そして本発明によれば、給湯用熱交換器での圧力損失による効率が低下を抑制することができ、また、サイクル内最適充填量の変動による効率の低下やサイクルの不安定による信頼性の低下を抑制することができ、また、給湯と空調能力分配による快適性を向上することのできる冷暖房給湯装置が得られる。
【００２１】
また他の手段は、給湯能力要求ランクと空調能力要求ランクによって流量調整弁の動作を制御するものである。
【００２２】
そして本発明によれば、給湯用熱交換器での圧力損失による効率が低下を抑制することができ、また、サイクル内最適充填量の変動による効率の低下やサイクルの不安定による信頼性の低下を抑制することができ、また、給湯と空調能力分配による快適性を向上することのできる冷暖房給湯装置が得られる。
【００２３】
また他の手段は、時刻と外気温度検知手段の双方またはいずれか一方を設けて、時刻と外気温度の双方またはいずれか一方の値と給湯能力要求ランクと空調能力要求ランクによって流量調整弁の動作を制御するものである。
【００２４】
そして本発明によれば、給湯用熱交換器での圧力損失による効率が低下を抑制することができ、また、サイクル内最適充填量の変動による効率の低下やサイクルの不安定による信頼性の低下を抑制することができ、また、給湯と空調能力分配による快適性を向上することのできる冷暖房給湯装置が得られる。
【００２５】
また他の手段は、圧縮機吸入もしくは空調用熱交換器の冷媒出入口のいずれか一方に圧力検知手段を設け、この値によって流量調整弁の動作を制御するものである。
【００２６】
そして本発明によれば、給湯用熱交換器での圧力損失による効率が低下を抑制することができ、また、サイクル内最適充填量の変動による効率の低下やサイクルの不安定による信頼性の低下を抑制することができ、また、給湯と空調能力分配による快適性を向上することのできる冷暖房給湯装置が得られる。
【００２７】
また他の手段は、空調用熱交換器の冷媒と水温の双方もしくはいずれか一方に温度検知手段を設け、この値によって流量調整弁の動作を制御するものである。
【００２８】
そして本発明によれば、給湯用熱交換器での圧力損失による効率が低下を抑制することができ、また、サイクル内最適充填量の変動による効率の低下やサイクルの不安定による信頼性の低下を抑制することができ、また、給湯と空調能力分配による快適性を向上することのできる冷暖房給湯装置が得られる。
【００２９】
また他の手段は、室外機用熱交換器の過冷却度を検知する手段を設け、この値によって流量調整弁の動作を制御するものである。
【００３０】
そして本発明によれば、給湯用熱交換器での圧力損失による効率が低下を抑制することができ、また、サイクル内最適充填量の変動による効率の低下やサイクルの不安定による信頼性の低下を抑制することができ、また、給湯と空調能力分配による快適性を向上することのできる冷暖房給湯装置が得られる。
【００３５】
また他の手段は、給湯用熱交換器の冷媒出入口に温度検知手段を設け、この値によって給湯用熱交換器の温水水量を制御するものである。
【００３６】
そして本発明によれば、給湯用熱交換器での圧力損失による効率が低下を抑制することができ、また、サイクル内最適充填量の変動による効率の低下やサイクルの不安定による信頼性の低下を抑制することができ、また、給湯と空調能力分配による快適性を向上することのできる冷暖房給湯装置が得られる。
【００３７】
また他の手段は、給湯用熱交換器の温水出入口の双方もしくはいずれか一方に温度検知手段を設け、この値によって給湯用熱交換器の温水水量を制御するものである。
【００３８】
そして本発明によれば、給湯用熱交換器での圧力損失による効率が低下を抑制することができ、また、サイクル内最適充填量の変動による効率の低下やサイクルの不安定による信頼性の低下を抑制することができ、また、給湯と空調能力分配による快適性を向上することのできる冷暖房給湯装置が得られる。
【００３９】
また他の手段は、圧縮機吸入もしくは空調用熱交換器の冷媒出入口のいずれか一方に圧力検知手段を設け、この値によって給湯用熱交換器の温水水量を制御するものである。
【００４０】
そして本発明によれば、給湯用熱交換器での圧力損失による効率が低下を抑制することができ、また、サイクル内最適充填量の変動による効率の低下やサイクルの不安定による信頼性の低下を抑制することができ、また、給湯と空調能力分配による快適性を向上することのできる冷暖房給湯装置が得られる。
【００４１】
また他の手段は、空調用熱交換器の冷媒と水温の双方もしくはいずれか一方に温度検知手段を設け、この値によって給湯用熱交換器の温水水量を制御するものである。
【００４２】
そして本発明によれば、給湯用熱交換器での圧力損失による効率が低下を抑制することができ、また、サイクル内最適充填量の変動による効率の低下やサイクルの不安定による信頼性の低下を抑制することができ、また、給湯と空調能力分配による快適性を向上することのできる冷暖房給湯装置が得られる。
【００４３】
また他の手段は、室外機用熱交換器の過冷却度を検知する手段を設け、この値によって給湯用熱交換器の温水水量を制御するものである。
【００４４】
そして本発明によれば、給湯用熱交換器での圧力損失による効率が低下を抑制することができ、また、サイクル内最適充填量の変動による効率の低下やサイクルの不安定による信頼性の低下を抑制することができ、また、給湯と空調能力分配による快適性を向上することのできる冷暖房給湯装置が得られる。
【００４５】
また他の手段は、給湯用熱交換器の温水と外気に温度検知手段を設け、この値によって室外熱交換器用送風機を制御するものである。
【００４６】
そして本発明によれば、冷房時に室外熱交換器用送風機の起動時に生じる室外熱交換器能力の急激な変化を抑制し、外気温度によっては凝縮器であるはずの室外熱交換器が蒸発器として作用することのない冷暖房給湯装置が得られる。
【００４７】
また他の手段は、給湯用熱交換器の冷媒と外気に温度検知手段を設け、この値によって室外熱交換器用送風機を制御するものである。
【００４８】
そして本発明によれば、冷房時に室外熱交換器用送風機の起動時に生じる室外熱交換器能力の急激な変化を抑制し、外気温度によっては凝縮器であるはずの室外熱交換器が蒸発器として作用することのない冷暖房給湯装置が得られる。
【００４９】
また他の手段は、室外熱交換器の冷媒と外気に温度検知手段を設け、この値によって室外熱交換器用送風機を制御するものである。
【００５０】
そして本発明によれば、冷房時に室外熱交換器用送風機の起動時に生じる室外熱交換器能力の急激な変化を抑制し、外気温度によっては凝縮器であるはずの室外熱交換器が蒸発器として作用することのない冷暖房給湯装置が得られる。また他の手段は、圧縮機と給湯用熱交換器と室外熱交換器と空調用熱交換器と膨張機構部と四方弁と室外熱交換器用送風機からなる冷暖房給湯装置において、前記給湯用熱交換器の温水または冷媒または前記室外用熱交換器の冷媒と外気に温度検知手段を設け、冷房と給湯を同時運転する場合に、前記室外熱交換器の温度が外気温度とほぼ等しくなった時に前記室外熱交換器用送風機を起動するものである。そして本発明によれば、冷房と給湯を同時運転する場合に、室外熱交換器の温度が外気温度とほぼ等しくなった時に室外熱交換器用送風機の起動をすることで、室外熱交換器用送風機の起動によって生じる室外熱交換器能力の急激な変化を抑制し、凝縮能力と蒸発能力のバランス変化によるサイクルの変動を抑制するという作用を有する。外気温度によっては凝縮器であるはずの室外熱交換器が蒸発器として作用することのない冷暖房給湯装置が得られる。
【００５２】
【発明の実施の形態】
本発明は、圧縮機と給湯用熱交換器と室外熱交換器と空調用熱交換器と膨張機構部と四方弁と室外熱交換器用送風機からなる冷暖房給湯装置において、前記給湯用熱交換器をバイパスする配管を設け前記バイパスする配管に流量調整弁を設け、冷房と給湯を同時運転する場合には一定以下に前記流量調整弁が閉まらないようにすることで前記室外熱交換器に常に二相冷媒が流れることを特徴とするものであり、冷房と給湯を同時運転する場合には、流量調整弁を開ける方向に制御すると給湯能力が減少し、流量調整弁を閉める方向に制御すると給湯能力が増加するが、一定以下に流量調整弁が閉まらないようにすることで、室外熱交換器に常に二相冷媒が流れ、サイクル内最適充填量の変動を抑制する。さらに、室外熱交換器に常に凝縮負荷を持たせることで、給湯の高負荷時にもある程度の凝縮圧力を維持することができ蒸発圧力の必要以上な低下による空調用熱交換器の凍結を改善するという作用を有する。
【００５６】
また、給湯用熱交換器の温水または冷媒または室外用熱交換器の冷媒と外気に温度検知手段を設け、この値によって室外熱交換器用送風機の起動を制御するとしたものであり、冷房と給湯を同時運転する場合に、前記室外熱交換器の温度が外気温度とほぼ等しくなった時に前記室外熱交換器用送風機を起動することで、前記室外熱交換器用送風機の起動によって生じる前記室外熱交換器能力の急激な変化を抑制し、凝縮能力と蒸発能力のバランス変化によるサイクルの変動を抑制するという作用を有する。
【００５７】
以下、本発明の実施例について図面を参照しながら説明する。
【００５８】
【実施例】
（参考例１）
図１は本発明の冷暖房給湯装置のサイクル構成図を示す。圧縮機１０１と給湯用熱交換器１０２と室外熱交換器１０３と空調用熱交換器１０４と膨張機構部１０５と四方弁１０６と室外熱交換器用送風機１０７と給湯用ポンプ１０８を備える冷暖房給湯装置に、給湯用熱交換器１０２をバイパスするバイパス管１を設けた構成としている。
【００５９】
上記構成において、圧縮機１０１で圧縮された高圧冷媒ガスはバイパス管１と給湯用熱交換器１０２に分流し、圧力損失が低下し高圧が低下することで圧縮機の仕事量減少により効率改善される。また、給湯水温度が低下すると給湯用熱交換器内の冷媒は凝縮し易くなるため圧力損失が減少し冷媒が多く流れるようになり、自然と給湯能力を向上させるように作用し、給湯と空調能力分配による快適性が向上することとなる。
【００６０】
（実施例１）
図２は本発明の冷暖房給湯装置のサイクル構成図を示す。圧縮機１０１と給湯用熱交換器１０２と室外熱交換器１０３と空調用熱交換器１０４と膨張機構部１０５と四方弁１０６と室外熱交換器用送風機１０７と給湯用ポンプ１０８を備える冷暖房給湯装置に、給湯用熱交換器１０２をバイパスするバイパス管１とバイパス管１に流量調整弁２を設け、給湯用熱交換器１０２の冷媒出入口に温度検知手段として給湯用熱交換器冷媒入口温度センサー３と給湯用熱交換器冷媒出口温度センサー４を設け、この値によって流量調整弁２の動作を制御する流量調整弁コントローラー５を設けた構成としている。
【００６１】
上記構成において、冷房と給湯を同時運転する場合には、暖房と給湯の同時運転時と同様に流量調整弁２を制御しつつ、一定以下に流量調整弁２が閉まらないようにすることで、室外熱交換器１０３に常に二相冷媒が流れることでサイクル内最適充填量の変動を抑制する。さらに、室外熱交換器１０３に常に凝縮負荷を持たせることで、給湯の高負荷時にもある程度の凝縮圧力を維持することができ蒸発圧力の必要以上な低下による空調用熱交換器の凍結を改善できることとなる。
【００６２】
（参考例２） 空調単独運転の場合には、流量調整弁２を全開に開くことによって、圧縮機１０１で圧縮された高圧冷媒ガスはバイパス管１と給湯用熱交換器１０２に分流し、圧力損失が低下し高圧が低下することで圧縮機の仕事量減少により効率改善されることとなる。また、給湯単独運転の場合には、流量調整弁２を全閉することによって、従来と同様の運転を行なえる。
【００６３】
また、暖房と給湯を同時運転する場合には、給湯用熱交換器冷媒入口温度センサー３の値に応じた給湯用熱交換器冷媒出口温度に設定値を与え、給湯用熱交換器冷媒出口温度センサー４の値が設定値より高いとき流量調整弁コントローラー５にて流量調整弁２を開ける方向に制御し、給湯用熱交換器冷媒出口温度センサー４の値が設定値より低いとき流量調整弁コントローラー５にて流量調整弁２を閉める方向に制御することで、給湯と空調の能力分配を行なえることとなる。
【００６５】
（実施例２）
図３は本発明の冷暖房給湯装置のサイクル構成図を示す。圧縮機１０１と給湯用熱交換器１０２と室外熱交換器１０３と空調用熱交換器１０４と膨張機構部１０５と四方弁１０６と室外熱交換器用送風機１０７と給湯用ポンプ１０８を備える冷暖房給湯装置に、給湯用熱交換器１０２をバイパスするバイパス管１とバイパス管１に流量調整弁２を設け、給湯用熱交換器１０２の温水出入口に温度検知手段として給湯用熱交換器水入口温度センサー６と給湯用熱交換器水出口温度センサー７を設け、この値によって流量調整弁２の動作を制御する流量調整弁コントローラー５を設けた構成としている。
【００６６】
上記構成において、冷房と給湯を同時運転する場合には、暖房と給湯の同時運転時と同様に流量調整弁２を制御しつつ、一定以下に流量調整弁２が閉まらないようにすることで、室外熱交換器１０３に常に二相冷媒が流れることでサイクル内最適充填量の変動を抑制する。さらに、室外熱交換器１０３に常に凝縮負荷を持たせることで、給湯の高負荷時にもある程度の凝縮圧力を維持することができ蒸発圧力の必要以上な低下による空調用熱交換器の凍結を改善できることとなる。
【００６７】
（参考例３） 空調単独運転の場合には、流量調整弁２を全開に開くことによって、圧縮機１０１で圧縮された高圧冷媒ガスはバイパス管１と給湯用熱交換器１０２に分流し、圧力損失が低下し高圧が低下することで圧縮機の仕事量減少により効率改善されることとなる。また、給湯単独運転の場合には、流量調整弁２を全閉することによって、従来と同様の運転を行なえる。
【００６８】
また、暖房と給湯を同時運転する場合には、給湯用熱交換器水入口温度センサー６の値に応じた給湯用熱交換器水出口温度に設定値を与え、給湯用熱交換器水出口温度センサー７の値が設定値より高いとき流量調整弁コントローラー５にて流量調整弁２を開ける方向に制御し、給湯用熱交換器水出口温度センサー７の値が設定値より低いとき流量調整弁コントローラー５にて流量調整弁２を閉める方向に制御することで、給湯と空調の能力分配を行なえることとなる。
【００７０】
（実施例３）
図４は本発明の冷暖房給湯装置のサイクル構成図を示す。圧縮機１０１と給湯用熱交換器１０２と室外熱交換器１０３と空調用熱交換器１０４と膨張機構部１０５と四方弁１０６と室外熱交換器用送風機１０７と給湯用ポンプ１０８を備える冷暖房給湯装置に、給湯用熱交換器１０２をバイパスするバイパス管１とバイパス管１に流量調整弁２を設け、空調能力要求ランク設定装置８と給湯能力要求ランク設定装置９を設け、この値によって流量調整弁２の動作を制御する流量調整弁コントローラー５を設けた構成としている。
【００７１】
上記構成において、冷房と給湯を同時運転する場合には、空調能力要求ランク設定装置８の値が給湯能力要求ランク設定装置９の値によらず一定開度に流量調整弁２を固定することで、室外熱交換器１０３に常に二相冷媒が流れることでサイクル内最適充填量の変動を抑制する。さらに、室外熱交換器１０３に常に凝縮負荷を持たせることで、給湯の高負荷時にもある程度の凝縮圧力を維持することができ蒸発圧力の必要以上な低下による空調用熱交換器の凍結を改善できることとなる。
【００７２】
（参考例４） 空調単独運転の場合には、流量調整弁２を全開に開くことによって、圧縮機１０１で圧縮された高圧冷媒ガスはバイパス管１と給湯用熱交換器１０２に分流し、圧力損失が低下し高圧が低下することで圧縮機の仕事量減少により効率改善されることとなる。また、給湯単独運転の場合には、流量調整弁２を全閉することによって、従来と同様の運転を行なえる。
【００７３】
また、暖房と給湯を同時運転する場合には、空調能力要求ランク設定装置８と給湯能力要求ランク設定装置９をパラメータとした計算式により流量調整弁コントローラー５にて流量調整弁２を制御する。基本的に、空調能力要求ランク設定装置８の値が給湯能力要求ランク設定装置９の値より大きいときは流量調整弁２を開ける方向に制御し、空調能力要求ランク設定装置８の値が給湯能力要求ランク設定装置９の値より小さいときは流量調整弁２を閉める方向に制御することで、要求に応じた給湯と空調の能力分配を行なえることとなる。
【００７５】
（実施例４）
図５は本発明の冷暖房給湯装置のサイクル構成図を示す。圧縮機１０１と給湯用熱交換器１０２と室外熱交換器１０３と空調用熱交換器１０４と膨張機構部１０５と四方弁１０６と室外熱交換器用送風機１０７と給湯用ポンプ１０８を備える冷暖房給湯装置に、給湯用熱交換器１０２をバイパスするバイパス管１とバイパス管１に流量調整弁２を設け、空調能力要求ランク設定装置８と給湯能力要求ランク設定装置９と時計１０と外気温度センサー１１を設け、この値によって流量調整弁２の動作を制御する流量調整弁コントローラー５を設けた構成としている。
【００７６】
上記構成において、冷房と給湯を同時運転する場合には、空調能力要求ランク設定装置８の値が給湯能力要求ランク設定装置９の値によらず一定開度に流量調整弁２を固定することで、室外熱交換器１０３に常に二相冷媒が流れることでサイクル内最適充填量の変動を抑制する。さらに、室外熱交換器１０３に常に凝縮負荷を持たせることで、給湯の高負荷時にもある程度の凝縮圧力を維持することができ蒸発圧力の必要以上な低下による空調用熱交換器の凍結を改善できることとなる。
【００７７】
（参考例５） 空調単独運転の場合には、流量調整弁２を全開に開くことによって、圧縮機１０１で圧縮された高圧冷媒ガスはバイパス管１と給湯用熱交換器１０２に分流し、圧力損失が低下し高圧が低下することで圧縮機の仕事量減少により効率改善されることとなる。また、給湯単独運転の場合には、流量調整弁２を全閉することによって、従来と同様の運転を行なえる。
【００７８】
また、暖房と給湯を同時運転する場合には、時計１０による時刻や外気温度センサー１１による外気温度に応じた空調能力要求ランク設定装置８と給湯能力要求ランク設定装置９をパラメータとした計算式により流量調整弁コントローラー５にて流量調整弁２を制御する。基本的に、空調能力要求ランク設定装置８の値が給湯能力要求ランク設定装置９の値より大きいときは流量調整弁２を開ける方向に制御し、空調能力要求ランク設定装置８の値が給湯能力要求ランク設定装置９の値より小さいときは流量調整弁２を閉める方向に制御するが、外気温度が低い時は空調能力を優先させ、午前０時から午前６時と午前１１時から午後３時には給湯能力を優先させることで、要求と必要に応じた給湯と空調の能力分配を行なえることとなる。
【００８０】
（実施例５）
図６は本発明の冷暖房給湯装置のサイクル構成図を示す。圧縮機１０１と給湯用熱交換器１０２と室外熱交換器１０３と空調用熱交換器１０４と膨張機構部１０５と四方弁１０６と室外熱交換器用送風機１０７と給湯用ポンプ１０８を備える冷暖房給湯装置に、給湯用熱交換器１０２をバイパスするバイパス管１とバイパス管１に流量調整弁２を設け、圧縮機吸入圧力センサー１２を設け、この値によって流量調整弁２の動作を制御する流量調整弁コントローラー５を設けた構成としている。
【００８１】
上記構成において、冷房と給湯を同時運転する場合には、暖房と給湯の同時運転時と同様に流量調整弁２を制御しつつ、一定以下に流量調整弁２が閉まらないようにすることで、室外熱交換器１０３に常に二相冷媒が流れることでサイクル内最適充填量の変動を抑制する。さらに、室外熱交換器１０３に常に凝縮負荷を持たせることで、給湯の高負荷時にもある程度の凝縮圧力を維持することができ蒸発圧力の必要以上な低下による空調用熱交換器の凍結を改善できることとなる。
【００８２】
（参考例６） 空調単独運転の場合には、流量調整弁２を全開に開くことによって、圧縮機１０１で圧縮された高圧冷媒ガスはバイパス管１と給湯用熱交換器１０２に分流し、圧力損失が低下し高圧が低下することで圧縮機の仕事量減少により効率改善されることとなる。また、給湯単独運転の場合には、流量調整弁２を全閉することによって、従来と同様の運転を行なえる。
【００８３】
また、暖房と給湯を同時運転する場合には、圧縮機吸入圧力センサー１２の値が設定値より高いとき流量調整弁コントローラー５にて流量調整弁２を閉める方向に制御し、圧縮機吸入圧力センサー１２の値が設定値より低いとき流量調整弁コントローラー５にて流量調整弁２を開ける方向に制御することで、給湯と空調の能力分配を行なえることとなる。
【００８５】
（実施例６）
図７は本発明の冷暖房給湯装置のサイクル構成図を示す。圧縮機１０１と給湯用熱交換器１０２と室外熱交換器１０３と空調用熱交換器１０４と膨張機構部１０５と四方弁１０６と室外熱交換器用送風機１０７と給湯用ポンプ１０８を備える冷暖房給湯装置に、給湯用熱交換器１０２をバイパスするバイパス管１とバイパス管１に流量調整弁２を設け、空調用熱交換器水温度センサー１３と空調用熱交換器冷媒温度センサー１４を設け、この値によって流量調整弁２の動作を制御する流量調整弁コントローラー５を設けた構成としている。
【００８６】
上記構成において、冷房と給湯を同時運転する場合には、空調用熱交換器水温度センサー１３の値に応じた空調用熱交換器冷媒温度を設定し、空調用熱交換器冷媒温度センサー１４の値が設定値より高いとき流量調整弁コントローラー５にて流量調整弁２を閉める方向に制御し、空調用熱交換器冷媒温度センサー１４の値が設定値より低いとき流量調整弁コントローラー５にて流量調整弁２を開ける方向に制御しつつ、一定以下に流量調整弁２が閉まらないようにすることで、室外熱交換器１０３に常に二相冷媒が流れることでサイクル内最適充填量の変動を抑制する。さらに、室外熱交換器１０３に常に凝縮負荷を持たせることで、給湯の高負荷時にもある程度の凝縮圧力を維持することができ蒸発圧力の必要以上な低下による空調用熱交換器の凍結を改善できることとなる。
【００８７】
（参考例７） 空調単独運転の場合には、流量調整弁２を全開に開くことによって、圧縮機１０１で圧縮された高圧冷媒ガスはバイパス管１と給湯用熱交換器１０２に分流し、圧力損失が低下し高圧が低下することで圧縮機の仕事量減少により効率改善されることとなる。また、給湯単独運転の場合には、流量調整弁２を全閉することによって、従来と同様の運転を行なえる。
【００８８】
また、暖房と給湯を同時運転する場合には、空調用熱交換器冷媒温度センサー１４の値によらず、空調用熱交換器水温度センサー１３の値が設定値より高いとき流量調整弁コントローラー５にて流量調整弁２を閉める方向に制御し、空調用熱交換器水温度センサー１３が設定値より低いとき流量調整弁コントローラー５にて流量調整弁２を開ける方向に制御することで、給湯と空調の能力分配を行なえることとなる。
【００９０】
（実施例７）
図８は本発明の冷暖房給湯装置のサイクル構成図を示す。圧縮機１０１と給湯用熱交換器１０２と室外熱交換器１０３と空調用熱交換器１０４と膨張機構部１０５と四方弁１０６と室外熱交換器用送風機１０７と給湯用ポンプ１０８を備える冷暖房給湯装置に、給湯用熱交換器１０２をバイパスするバイパス管１とバイパス管１に流量調整弁２を設け、冷房運転時に室外機熱交換器１０３の過冷却度検知手段として室外熱交換器冷媒温度センサー１５と室外熱交換器冷媒圧力センサー１６を設け、この値によって流量調整弁２の動作を制御する流量調整弁コントローラー５を設けた構成としている。
【００９１】
上記構成において、冷房と給湯を同時運転する場合には、室外熱交換器冷媒圧力センサー１６の値に応じた室外熱交換器冷媒温度を設定し、室外熱交換器冷媒温度センサー１５の値が設定値より高いとき（過冷却度が設定より取れていないとき）流量調整弁コントローラー５にて流量調整弁２を閉める方向に制御し、室外熱交換器冷媒温度センサー１５の値が設定値より低いとき（過冷却度が設定より取れているとき）流量調整弁コントローラー５にて流量調整弁２を開ける方向に制御しつつ、一定以下に流量調整弁２が閉まらないようにすることで、室外熱交換器１０３に常に二相冷媒が流れることでサイクル内最適充填量の変動を抑制する。さらに、室外熱交換器１０３に常に凝縮負荷を持たせることで、給湯の高負荷時にもある程度の凝縮圧力を維持することができ蒸発圧力の必要以上な低下による空調用熱交換器の凍結を改善できることとなる。
【００９２】
（参考例８） 空調単独運転の場合には、流量調整弁２を全開に開くことによって、圧縮機１０１で圧縮された高圧冷媒ガスはバイパス管１と給湯用熱交換器１０２に分流し、圧力損失が低下し高圧が低下することで圧縮機の仕事量減少により効率改善されることとなる。また、給湯単独運転の場合には、流量調整弁２を全閉することによって、従来と同様の運転を行なえる。
【００９３】
また、暖房と給湯を同時運転する場合には、流量調整弁２を全開に開くことによって、圧縮機１０１で圧縮された高圧冷媒ガスはバイパス管１と給湯用熱交換器１０２に分流し、圧力損失が低下し高圧が低下することで圧縮機の仕事量減少により効率改善される。また、給湯水温度が低下すると給湯用熱交換器内の冷媒は凝縮し易くなるため圧力損失が減少し冷媒が多く流れるようになり、自然と給湯能力を向上させるように作用し、給湯と空調能力分配による快適性が向上することとなる。
【００９５】
（実施例８）
図９は本発明の冷暖房給湯装置のサイクル構成図を示す。圧縮機１０１と給湯用熱交換器１０２と室外熱交換器１０３と空調用熱交換器１０４と膨張機構部１０５と四方弁１０６と室外熱交換器用送風機１０７と給湯用ポンプ１０８を備える冷暖房給湯装置に、給湯用熱交換器１０２をバイパスするバイパス管１と給湯用熱交換器１０２の冷媒入口側のバイパス分岐部に三方弁１７を設け、給湯用熱交換器１０２の冷媒出入口に温度検知手段として給湯用熱交換器冷媒入口温度センサー３と給湯用熱交換器冷媒出口温度センサー４を設け、この値によって給湯用熱交換器１０２の温水水量を制御する手段として給湯用ポンプコントローラー１８を設けた構成としている。
【００９６】
上記構成において、冷房と給湯を同時運転する場合には、暖房と給湯の同時運転時と同様に給湯用ポンプ１０８の出力を制御することで、給湯能力を抑制し、室外熱交換器１０３に常に凝縮負荷を持たせることで、ある程度の凝縮圧力を維持することができ蒸発圧力の必要以上な低下による空調用熱交換器の凍結を改善できることとなる。
【００９７】
（参考例９） 空調単独運転の場合には、圧縮機１０１で圧縮された高圧冷媒ガスを三方弁１７にてバイパス管１に流し給湯用熱交換器１０２をバイパスすることによって、圧力損失が低下し高圧が低下することで圧縮機の仕事量減少により効率改善されることとなる。また、給湯を必要とする運転の場合には、圧縮機１０１で圧縮された高圧冷媒ガスを三方弁１７にて給湯用熱交換器１０２に流すことによって、給湯運転を行なうことができることとなる。
【００９８】
また、給湯単独運転の場合には、給湯用ポンプコントローラー１８にて給湯用ポンプ１０８の出力を最大にすることによって、従来と同様の運転を行なえる。
【００９９】
また、暖房と給湯を同時運転する場合には、給湯用熱交換器冷媒入口温度センサー３の値に応じた給湯用熱交換器冷媒出口温度に設定値を与え、給湯用熱交換器冷媒出口温度センサー４の値が設定値より高いとき給湯用ポンプコントローラー１８にて給湯用ポンプ１０８の出力を上げる方向に制御し、給湯用熱交換器冷媒出口温度センサー４の値が設定値より低いとき給湯用ポンプコントローラー１８にて給湯用ポンプ１０８の出力を下げる方向に制御することで、給湯と空調の能力分配を行なえることとなる。
【０１０１】
（実施例９）
図１０は本発明の冷暖房給湯装置のサイクル構成図を示す。圧縮機１０１と給湯用熱交換器１０２と室外熱交換器１０３と空調用熱交換器１０４と膨張機構部１０５と四方弁１０６と室外熱交換器用送風機１０７と給湯用ポンプ１０８を備える冷暖房給湯装置に、給湯用熱交換器１０２をバイパスするバイパス管１と給湯用熱交換器１０２の冷媒出口側のバイパス合流部に三方弁１７を設け、給湯用熱交換器１０２の温水出入口に温度検知手段として給湯用熱交換器水入口温度センサー６と給湯用熱交換器水出口温度センサー７を設け、この値によって給湯用熱交換器１０２の温水水量を制御する手段として給湯用ポンプコントローラー１８を設けた構成としている。
【０１０２】
上記構成において、冷房と給湯を同時運転する場合には、暖房と給湯の同時運転時と同様に給湯用ポンプ１０８の出力を制御することで、給湯能力を抑制し、室外熱交換器１０３に常に凝縮負荷を持たせることで、ある程度の凝縮圧力を維持することができ蒸発圧力の必要以上な低下による空調用熱交換器の凍結を改善できることとなる。
【０１０３】
（参考例１０） 空調単独運転の場合には、圧縮機１０１で圧縮された高圧冷媒ガスを三方弁１７にてバイパス管１に流し給湯用熱交換器１０２をバイパスすることによって、圧力損失が低下し高圧が低下することで圧縮機の仕事量減少により効率改善されることとなる。また、給湯を必要とする運転の場合には、圧縮機１０１で圧縮された高圧冷媒ガスを三方弁１７にて給湯用熱交換器１０２に流すことによって、従来と同様の運転を行なうことができる。このとき、三方弁１７は給湯用熱交換器１０２の出口側にあるため三方弁１７の圧力損失が給湯用熱交換器１０２の性能低下に影響ぜず、さらに三方弁１７に凝縮された液冷媒もしくは二相冷媒が流れるために三方弁１７の圧力損失低減することによって効率低下を改善することとなる。
【０１０４】
また、給湯単独運転の場合には、給湯用ポンプコントローラー１８にて給湯用ポンプ１０８の出力を最大にすることによって、従来と同様の運転を行なえる。
【０１０５】
また、暖房と給湯を同時運転する場合には、給湯用熱交換器水入口温度センサー６の値に応じた給湯用熱交換器水出口温度に設定値を与え、給湯用熱交換器水出口温度センサー７の値が設定値より高いとき給湯用ポンプコントローラー１８にて給湯用ポンプ１０８の出力を上げる方向に制御し、給湯用熱交換器水出口温度センサー７の値が設定値より低いとき給湯用ポンプコントローラー１８にて給湯用ポンプ１０８の出力を下げる方向に制御することで、給湯と空調の能力分配を行なえることとなる。
【０１０７】
（実施例１０）
図１１は本発明の冷暖房給湯装置のサイクル構成図を示す。圧縮機１０１と給湯用熱交換器１０２と室外熱交換器１０３と空調用熱交換器１０４と膨張機構部１０５と四方弁１０６と室外熱交換器用送風機１０７と給湯用ポンプ１０８を備える冷暖房給湯装置に、給湯用熱交換器１０２をバイパスするバイパス管１とバイパス管１に流量調整弁２を設け、圧縮機吸入圧力センサー１２を設け、この値によって給湯用熱交換器１０２の温水水量を制御する手段として給湯用ポンプコントローラー１８を設けた構成としている。
【０１０８】
上記構成において、冷房と給湯を同時運転する場合には、暖房と給湯の同時運転時と同様に給湯用ポンプ１０８の出力を制御することで、給湯能力を抑制し、室外熱交換器１０３に常に凝縮負荷を持たせることで、ある程度の凝縮圧力を維持することができ蒸発圧力の必要以上な低下による空調用熱交換器の凍結を改善できることとなる。
【０１０９】
（参考例１１） 給湯単独運転の場合には、給湯用ポンプコントローラー１８にて給湯用ポンプ１０８の出力を最大にすることによって、従来と同様の運転を行なえる。また、暖房と給湯を同時運転する場合には、圧縮機吸入圧力センサー１２の値が設定値より高いとき給湯用ポンプコントローラー１８にて給湯用ポンプ１０８の出力を上げる方向に制御し、圧縮機吸入圧力センサー１２の値が設定値より低いとき給湯用ポンプコントローラー１８にて給湯用ポンプ１０８の出力を下げる方向に制御することで、給湯と空調の能力分配を行なえることとなる。
【０１１１】
（実施例１１）
図１２は本発明の冷暖房給湯装置のサイクル構成図を示す。圧縮機１０１と給湯用熱交換器１０２と室外熱交換器１０３と空調用熱交換器１０４と膨張機構部１０５と四方弁１０６と室外熱交換器用送風機１０７と給湯用ポンプ１０８を備える冷暖房給湯装置に、給湯用熱交換器１０２をバイパスするバイパス管１とバイパス管１に流量調整弁２を設け、空調用熱交換器水温度センサー１３と空調用熱交換器冷媒温度センサー１４を設け、この値によって給湯用熱交換器１０２の温水水量を制御する手段として給湯用ポンプコントローラー１８を設けた構成としている。
【０１１２】
上記構成において、冷房と給湯を同時運転する場合には、空調用熱交換器水温度センサー１３の値に応じた空調用熱交換器冷媒温度を設定し、空調用熱交換器冷媒温度センサー１４の値が設定値より高いとき給湯用ポンプコントローラー１８にて給湯用ポンプ１０８の出力を上げる方向に制御し、空調用熱交換器冷媒温度センサー１４の値が設定値より低いとき給湯用ポンプコントローラー１８にて給湯用ポンプ１０８の出力を下げる方向に制御することで、給湯能力を抑制し、室外熱交換器１０３に常に凝縮負荷を持たせることで、ある程度の凝縮圧力を維持することができ蒸発圧力の必要以上な低下による空調用熱交換器の凍結を改善できることとなる。
【０１１３】
（参考例１２） 給湯単独運転の場合には、給湯用ポンプコントローラー１８にて給湯用ポンプ１０８の出力を最大にすることによって、従来と同様の運転を行なえる。また、暖房と給湯を同時運転する場合には、空調用熱交換器冷媒温度センサー１４の値によらず、空調用熱交換器水温度センサー１３の値が設定値より高いとき給湯用ポンプコントローラー１８にて給湯用ポンプ１０８の出力を上げる方向に制御し、空調用熱交換器水温度センサー１３が設定値より低いとき給湯用ポンプコントローラー１８にて給湯用ポンプ１０８の出力を下げる方向に制御することで、給湯と空調の能力分配を行なえることとなる。
【０１１５】
（実施例１２）
図１３は本発明の冷暖房給湯装置のサイクル構成図を示す。圧縮機１０１と給湯用熱交換器１０２と室外熱交換器１０３と空調用熱交換器１０４と膨張機構部１０５と四方弁１０６と室外熱交換器用送風機１０７と給湯用ポンプ１０８を備える冷暖房給湯装置に、給湯用熱交換器１０２をバイパスするバイパス管１とバイパス管１に流量調整弁２を設け、冷房運転時に室外機熱交換器１０３の過冷却度検知手段として室外熱交換器冷媒温度センサー１５と室外熱交換器冷媒圧力センサー１６を設け、この値によって給湯用熱交換器１０２の温水水量を制御する手段として給湯用ポンプコントローラー１８を設けた構成としている。
【０１１６】
上記構成において、冷房と給湯を同時運転する場合には、室外熱交換器冷媒圧力センサー１６の値に応じた室外熱交換器冷媒温度を設定し、室外熱交換器冷媒温度センサー１５の値が設定値より高いとき（過冷却度が設定より取れていないとき）給湯用ポンプコントローラー１８にて給湯用ポンプ１０８の出力を上げる方向に制御し、室外熱交換器冷媒温度センサー１５の値が設定値より低いとき（過冷却度が設定より取れているとき）給湯用ポンプコントローラー１８にて給湯用ポンプ１０８の出力を下げる方向に制御することで、給湯能力を抑制し、室外熱交換器１０３の冷媒状態を安定させることでサイクル内最適充填量の変動を抑制する。このことにより、効率の低下やサイクルの不安定による信頼性の低下を改善することができることとなる。
【０１１７】
（参考例１３） 給湯単独運転の場合や暖房と給湯を同時運転する場合には、給湯用ポンプコントローラー１８にて給湯用ポンプ１０８の出力を最大にすることによって、従来と同様の運転を行なえる。
【０１１８】
（実施例１３）
図１４は本発明の冷暖房給湯装置のサイクル構成図を示す。圧縮機１０１と給湯用熱交換器１０２と室外熱交換器１０３と空調用熱交換器１０４と膨張機構部１０５と四方弁１０６と室外熱交換器用送風機１０７と給湯用ポンプ１０８を備える冷暖房給湯装置に、給湯用熱交換器１０２をバイパスするバイパス管１とバイパス管１に流量調整弁２を設け、給湯用熱交換器１０２の温水温度検知手段として給湯用熱交換器水入口温度センサー６と外気温度検知手段として外気温度センサー１１を設け、この値によって室外熱交換器用送風機１０７の風量制御手段として室外熱交換器用送風機コントローラー１９を設けた構成としている。
【０１１９】
上記構成において、冷房と給湯を同時運転する場合には、給湯用熱交換器水入口温度センサー６の値が外気温度センサー１１の値を越えたときに室外熱交換器用送風機コントローラー１９にて室外熱交換器用送風機１０７を起動させるようにすることで、室外熱交換器１０３の温度と外気温度との差が小さく、さらに外気温度の方が小さいと予測される状態となるので室外熱交換器用送風機１０７の起動による室外熱交換器１０３の急激な能力変化を抑制し、室外熱交換器１０３を凝縮器として作用させることができるのでサイクルの安定による信頼性向上と蒸発圧力の必要以上な低下による空調用熱交換器の凍結を改善できることとなる。
【０１２０】
（実施例１４）
図１５は本発明の冷暖房給湯装置のサイクル構成図を示す。圧縮機１０１と給湯用熱交換器１０２と室外熱交換器１０３と空調用熱交換器１０４と膨張機構部１０５と四方弁１０６と室外熱交換器用送風機１０７と給湯用ポンプ１０８を備える冷暖房給湯装置に、給湯用熱交換器１０２をバイパスするバイパス管１とバイパス管１に流量調整弁２を設け、給湯用熱交換器１０２の冷媒温度検知手段として給湯用熱交換器冷媒出口温度センサー４と外気温度検知手段として外気温度センサー１１を設け、この値によって室外熱交換器用送風機１０７の風量制御手段として室外熱交換器用送風機コントローラー１９を設けた構成としている。
【０１２１】
上記構成において、冷房と給湯を同時運転する場合には、給湯用熱交換器冷媒出口温度センサー４の値が外気温度センサー１１の値を越えたときに室外熱交換器用送風機コントローラー１９にて室外熱交換器用送風機１０７を起動させるようにすることで、室外熱交換器１０３の温度と外気温度との差が小さく、さらに外気温度の方が小さいと予測される状態となるので室外熱交換器用送風機１０７の起動による室外熱交換器１０３の急激な能力変化を抑制し、室外熱交換器１０３を凝縮器として作用させることができるのでサイクルの安定による信頼性向上と蒸発圧力の必要以上な低下による空調用熱交換器の凍結を改善できることとなる。
【０１２２】
（実施例１５）
図１６は本発明の冷暖房給湯装置のサイクル構成図を示す。圧縮機１０１と給湯用熱交換器１０２と室外熱交換器１０３と空調用熱交換器１０４と膨張機構部１０５と四方弁１０６と室外熱交換器用送風機１０７と給湯用ポンプ１０８を備える冷暖房給湯装置に、給湯用熱交換器１０２をバイパスするバイパス管１とバイパス管１に流量調整弁２を設け、室外熱交換器１０３の冷媒温度検知手段として室外熱交換器冷媒温度センサー１５と外気温度検知手段として外気温度センサー１１を設け、この値によって室外熱交換器用送風機１０７の風量制御手段として室外熱交換器用送風機コントローラー１９を設けた構成としている。
【０１２３】
上記構成において、冷房と給湯を同時運転する場合には、室外熱交換器冷媒温度センサー１５の値が外気温度センサー１１の値を越えたときに室外熱交換器用送風機コントローラー１９にて室外熱交換器用送風機１０７を起動させるようにすることで、室外熱交換器１０３の温度と外気温度との差が小さく、さらに外気温度の方が小さい状態となるので室外熱交換器用送風機１０７の起動による室外熱交換器１０３の急激な能力変化を抑制し、室外熱交換器１０３を凝縮器として作用させることができるのでサイクルの安定による信頼性向上と蒸発圧力の必要以上な低下による空調用熱交換器の凍結を改善できることとなる。
【０１２４】
【発明の効果】
以上の実施例から明らかなように、本発明によれば給湯用熱交換器での圧力損失による効率が低下を抑制するという効果のある冷暖房給湯装置を提供できる。
【０１２５】
また、サイクル内最適充填量の変動による効率の低下やサイクルの不安定と空調用熱交換器の凍結による信頼性の低下を抑制できる効果のある冷暖房給湯装置を提供できる。
【０１２６】
また、給湯と空調能力分配による快適性が向上できる効果のある冷暖房給湯装置を提供できる。
【０１２７】
また、冷房時に室外熱交換器用送風機の起動時に生じる室外熱交換器能力の急激な変化を抑制し、外気温度によっては凝縮器であるはずの室外熱交換器が蒸発器として作用することのない効果のある冷暖房給湯装置を提供できる。
【図面の簡単な説明】
【図１】本発明の実施例１の冷暖房給湯装置のサイクル構成図
【図２】本発明の実施例２の冷暖房給湯装置のサイクル構成図
【図３】本発明の実施例３の冷暖房給湯装置のサイクル構成図
【図４】本発明の実施例４の冷暖房給湯装置のサイクル構成図
【図５】本発明の実施例５の冷暖房給湯装置のサイクル構成図
【図６】本発明の実施例６の冷暖房給湯装置のサイクル構成図
【図７】本発明の実施例７の冷暖房給湯装置のサイクル構成図
【図８】本発明の実施例８の冷暖房給湯装置のサイクル構成図
【図９】本発明の実施例９の冷暖房給湯装置のサイクル構成図
【図１０】本発明の実施例１０の冷暖房給湯装置のサイクル構成図
【図１１】本発明の実施例１１の冷暖房給湯装置のサイクル構成図
【図１２】本発明の実施例１２の冷暖房給湯装置のサイクル構成図
【図１３】本発明の実施例１３の冷暖房給湯装置のサイクル構成図
【図１４】本発明の実施例１４の冷暖房給湯装置のサイクル構成図
【図１５】本発明の実施例１５の冷暖房給湯装置のサイクル構成図
【図１６】本発明の実施例１６の冷暖房給湯装置のサイクル構成図
【図１７】従来の冷暖房給湯装置のサイクル構成図
【符号の説明】
１ バイパス管
２ 流量調整弁
３ 給湯用熱交換器冷媒入口温度センサー
４ 給湯用熱交換器冷媒出口温度センサー
５ 流量調整弁コントローラー
６ 給湯用熱交換器水入口温度センサー
７ 給湯用熱交換器水出口温度センサー
８ 空調能力要求ランク設定装置
９ 給湯能力要求ランク設定装置
１０ 時計
１１ 外気温度センサー
１２ 圧縮機吸入圧力センサー
１３ 空調用熱交換器水温度センサー
１４ 空調用熱交換器冷媒温度センサー
１５ 室外熱交換器冷媒温度センサー
１６ 室外熱交換器冷媒圧力センサー
１７ 三方弁
１８ 給湯用ポンプコントローラー
１９ 室外熱交換器用送風機コントローラー[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an air conditioning and hot water supply apparatus using a refrigeration cycle.
[0002]
[Prior art]
Conventionally, this kind of air-conditioning hot-water supply apparatus is known as what was described in Unexamined-Japanese-Patent No. 5-288427.
[0003]
Hereinafter, the air conditioning and hot water supply apparatus will be described with reference to FIG.
[0004]
As shown in FIG. 20, a compressor 101, a hot water supply heat exchanger 102, an outdoor heat exchanger 103, an air conditioning heat exchanger 104, an expansion mechanism 105, a four-way valve 106, an outdoor heat exchanger blower 107, and a hot water supply pump. A well-known refrigeration cycle is configured by connecting with piping by providing 108.
[0005]
During cooling, the high-pressure refrigerant gas compressed by the compressor 101 passes through the hot water supply heat exchanger 102, passes through the outdoor heat exchanger 103 by the four-way valve 106, and dissipates heat in each of the heat exchangers. It becomes a liquid refrigerant. The high-pressure liquid refrigerant is decompressed by the expansion mechanism unit 105 to become a low-pressure two-phase refrigerant, and absorbs heat from a medium such as water or air by the air conditioner heat exchanger 104 to become a low-pressure gas refrigerant. 101 is inhaled to form a known refrigeration cycle. As a result, the room is cooled by a medium such as water or air, and this exhaust heat can be used for hot water supply to enable efficient operation.
[0006]
During heating, the high-pressure refrigerant gas compressed by the compressor 101 passes through the hot water supply heat exchanger 102, passes through the air conditioning heat exchanger 104 by the four-way valve 106, and dissipates heat in each of the heat exchangers. And high pressure liquid refrigerant. This high-pressure liquid refrigerant is decompressed by the expansion mechanism unit 105 to become a low-pressure two-phase refrigerant, absorbs heat by the outdoor heat exchanger 103, becomes a low-pressure gas refrigerant, is sucked into the compressor 101 by the four-way valve 106, and is well-known refrigeration. Form a cycle. Thereby, the driving | operation which can perform heating and hot water supply simultaneously is enabled.
[0007]
For simultaneous operation of cooling and hot water supply, the air volume of the outdoor heat exchanger fan 107 is generally controlled proportionally by the discharge pressure of the compressor 101, and the outdoor heat exchanger fan 107 has a set pressure. Fires when crossed.
[0008]
[Problems to be solved by the invention]
In such a conventional air conditioning and hot water supply apparatus, firstly, there is a problem that the efficiency is reduced due to pressure loss because the high-pressure refrigerant gas always passes through the hot water supply heat exchanger even when the hot water supply operation is not necessary.
[0009]
Second, depending on the hot water supply conditions, the refrigerant at the outlet of the hot water supply heat exchanger is in a liquid or gas state, so the optimum filling amount in the cycle fluctuates, and the reliability decreases due to a decrease in efficiency or instability of the cycle. There is a problem of decline. Furthermore, when the hot water supply load is large when the cooling operation and the hot water supply operation are performed simultaneously, there is a problem in that the evaporation pressure is reduced due to the reduction of the condensation pressure, and the reliability is reduced due to the freezing of the heat exchanger for air conditioning.
[0010]
Third, there is a problem of improving comfort through hot water supply and air conditioning capability distribution.
[0011]
Fourth, a sudden change in the outdoor heat exchanger capacity that occurs when the outdoor heat exchanger blower is activated during cooling, and an outdoor heat exchanger that should be a condenser depending on the outdoor temperature may act as an evaporator. There is a problem that reliability is lowered due to instability of the cycle.
[0012]
The present invention solves such a conventional problem, can suppress a decrease in efficiency due to a pressure loss in a hot water heat exchanger, and a decrease in efficiency due to a change in the optimum filling amount in a cycle. In addition, it is possible to suppress deterioration in reliability due to instability of the cycle and freezing of the heat exchanger for air conditioning, and to improve comfort by distributing hot water and air conditioning capacity, and for outdoor heat exchangers during cooling An object of the present invention is to provide a heating / cooling hot water supply apparatus that suppresses a sudden change in the capacity of an outdoor heat exchanger that occurs when a blower is started and does not function as an evaporator, depending on the outdoor temperature. It is said.
[0015]
[Means for Solving the Problems]
In order to achieve the above object, an air conditioning and hot water supply apparatus of the present invention comprises a compressor, a hot water heat exchanger, an outdoor heat exchanger, an air conditioning heat exchanger, an expansion mechanism, a four-way valve, and an outdoor heat exchanger blower. In the water heater,Piping bypassing the heat exchanger for hot water supplyProviding bypass pipingWith a flow control valveWhen simultaneously operating cooling and hot water supply, the two-phase refrigerant always flows through the outdoor heat exchanger by preventing the flow rate adjustment valve from closing below a certain level.It is characterized by this.
[0016]
  And according to the invention,When cooling and hot water are operated simultaneously, controlling the direction to open the flow rate adjustment valve decreases the hot water supply capability, and controlling it to close the flow rate adjustment valve increases the hot water supply capability, but does not close the flow rate adjustment valve below a certain level. By avoiding this, the two-phase refrigerant always flows in the outdoor heat exchanger, and the fluctuation of the optimum charging amount in the cycle is suppressed. Furthermore, by always giving the outdoor heat exchanger a condensing load, a certain degree of condensing pressure can be maintained even during hot water supply high loads, and freezing of the air conditioner heat exchanger due to an unnecessarily low evaporation pressure can be improved. . Also,The efficiency due to pressure loss in the heat exchanger for hot water supply can be suppressed, and the decrease in efficiency due to fluctuations in the optimal filling amount in the cycle and the decrease in reliability due to instability of the cycle can be suppressed. In addition, an air conditioning and hot water supply apparatus that can improve the comfort of hot water supply and air conditioning capacity distribution can be obtained.
[0017]
Another means is to provide a temperature detecting means at the refrigerant inlet / outlet of the hot water supply heat exchanger and to control the operation of the flow rate adjusting valve by this value.
[0018]
According to the present invention, it is possible to suppress a decrease in efficiency due to pressure loss in the hot water heat exchanger, and a decrease in efficiency due to fluctuations in the optimum filling amount in the cycle and a decrease in reliability due to instability of the cycle. It is possible to obtain an air-conditioning / hot-water supply apparatus that can suppress the hot water supply and improve the comfort of hot water supply and air-conditioning capacity distribution.
[0019]
Another means is to provide temperature detection means at both or one of the hot water inlets and outlets of the hot water supply heat exchanger and to control the operation of the flow rate adjusting valve by this value.
[0020]
According to the present invention, it is possible to suppress a decrease in efficiency due to pressure loss in the hot water heat exchanger, and a decrease in efficiency due to fluctuations in the optimum filling amount in the cycle and a decrease in reliability due to instability of the cycle. It is possible to obtain an air-conditioning / hot-water supply apparatus that can suppress the hot water supply and improve the comfort of hot water supply and air-conditioning capacity distribution.
[0021]
Another means is to control the operation of the flow rate adjusting valve according to the hot water supply capacity requirement rank and the air conditioning capacity requirement rank.
[0022]
According to the present invention, it is possible to suppress a decrease in efficiency due to pressure loss in the hot water heat exchanger, and a decrease in efficiency due to fluctuations in the optimum filling amount in the cycle and a decrease in reliability due to instability of the cycle. It is possible to obtain an air-conditioning / hot-water supply apparatus that can suppress the hot water supply and improve the comfort of hot water supply and air-conditioning capacity distribution.
[0023]
The other means is provided with either or both of the time and the outside air temperature detecting means, and the operation of the flow rate adjusting valve according to the time and / or the outside air temperature, the hot water supply capacity requirement rank, and the air conditioning capacity requirement rank. Is to control.
[0024]
According to the present invention, it is possible to suppress a decrease in efficiency due to pressure loss in the hot water heat exchanger, and a decrease in efficiency due to fluctuations in the optimum filling amount in the cycle and a decrease in reliability due to instability of the cycle. It is possible to obtain an air-conditioning / hot-water supply apparatus that can suppress the hot water supply and improve the comfort of hot water supply and air-conditioning capacity distribution.
[0025]
Another means is to provide a pressure detection means at either the compressor suction or the refrigerant inlet / outlet of the air conditioner heat exchanger, and control the operation of the flow rate adjusting valve by this value.
[0026]
According to the present invention, it is possible to suppress a decrease in efficiency due to pressure loss in the hot water heat exchanger, and a decrease in efficiency due to fluctuations in the optimum filling amount in the cycle and a decrease in reliability due to instability of the cycle. It is possible to obtain an air-conditioning / hot-water supply apparatus that can suppress the hot water supply and improve the comfort of hot water supply and air-conditioning capacity distribution.
[0027]
Another means is that temperature detecting means is provided for either or both of the refrigerant and water temperature of the air conditioner heat exchanger, and the operation of the flow rate adjusting valve is controlled by this value.
[0028]
According to the present invention, it is possible to suppress a decrease in efficiency due to pressure loss in the hot water heat exchanger, and a decrease in efficiency due to fluctuations in the optimum filling amount in the cycle and a decrease in reliability due to instability of the cycle. It is possible to obtain an air-conditioning / hot-water supply apparatus that can suppress the hot water supply and improve the comfort of hot water supply and air-conditioning capacity distribution.
[0029]
Another means is provided with means for detecting the degree of supercooling of the heat exchanger for the outdoor unit, and the operation of the flow regulating valve is controlled by this value.
[0030]
According to the present invention, it is possible to suppress a decrease in efficiency due to pressure loss in the hot water heat exchanger, and a decrease in efficiency due to fluctuations in the optimum filling amount in the cycle and a decrease in reliability due to instability of the cycle. It is possible to obtain an air-conditioning / hot-water supply apparatus that can suppress the hot water supply and improve the comfort of hot water supply and air-conditioning capacity distribution.
[0035]
Another means is to provide temperature detection means at the refrigerant inlet / outlet of the hot water supply heat exchanger, and to control the amount of hot water in the hot water supply heat exchanger by this value.
[0036]
According to the present invention, it is possible to suppress a decrease in efficiency due to pressure loss in the hot water heat exchanger, and a decrease in efficiency due to fluctuations in the optimum filling amount in the cycle and a decrease in reliability due to instability of the cycle. It is possible to obtain an air-conditioning / hot-water supply apparatus that can suppress the hot water supply and improve the comfort of hot water supply and air-conditioning capacity distribution.
[0037]
Another means is to provide temperature detection means at both or either one of the hot water inlet / outlet of the hot water supply heat exchanger and control the amount of hot water in the hot water supply heat exchanger by this value.
[0038]
According to the present invention, it is possible to suppress a decrease in efficiency due to pressure loss in the hot water heat exchanger, and a decrease in efficiency due to fluctuations in the optimum filling amount in the cycle and a decrease in reliability due to instability of the cycle. It is possible to obtain an air-conditioning / hot-water supply apparatus that can suppress the hot water supply and improve the comfort of hot water supply and air-conditioning capacity distribution.
[0039]
Another means is to provide pressure detection means at either the compressor inlet or the refrigerant inlet / outlet of the air conditioning heat exchanger, and control the amount of hot water in the hot water supply heat exchanger by this value.
[0040]
According to the present invention, it is possible to suppress a decrease in efficiency due to pressure loss in the hot water heat exchanger, and a decrease in efficiency due to fluctuations in the optimum filling amount in the cycle and a decrease in reliability due to instability of the cycle. It is possible to obtain an air-conditioning / hot-water supply apparatus that can suppress the hot water supply and improve the comfort of hot water supply and air-conditioning capacity distribution.
[0041]
Another means is that temperature detecting means is provided in either or both of the refrigerant and the water temperature of the air conditioner heat exchanger, and the amount of hot water in the hot water supply heat exchanger is controlled by this value.
[0042]
According to the present invention, it is possible to suppress a decrease in efficiency due to pressure loss in the hot water heat exchanger, and a decrease in efficiency due to fluctuations in the optimum filling amount in the cycle and a decrease in reliability due to instability of the cycle. It is possible to obtain an air-conditioning / hot-water supply apparatus that can suppress the hot water supply and improve the comfort of hot water supply and air-conditioning capacity distribution.
[0043]
Another means is provided with means for detecting the degree of supercooling of the outdoor unit heat exchanger, and the amount of hot water in the hot water supply heat exchanger is controlled by this value.
[0044]
According to the present invention, it is possible to suppress a decrease in efficiency due to pressure loss in the hot water heat exchanger, and a decrease in efficiency due to fluctuations in the optimum filling amount in the cycle and a decrease in reliability due to instability of the cycle. It is possible to obtain an air-conditioning / hot-water supply apparatus that can suppress the hot water supply and improve the comfort of hot water supply and air-conditioning capacity distribution.
[0045]
Another means is to provide temperature detection means in the hot water and the outside air of the hot water supply heat exchanger, and to control the blower for the outdoor heat exchanger by this value.
[0046]
According to the present invention, an abrupt change in the outdoor heat exchanger capacity that occurs when the outdoor heat exchanger blower is started during cooling is suppressed, and the outdoor heat exchanger that should be a condenser acts as an evaporator depending on the outside air temperature. An air conditioning and hot water supply apparatus that does not have to be obtained is obtained.
[0047]
Another means is to provide temperature detection means in the refrigerant and outside air of the hot water supply heat exchanger, and to control the outdoor heat exchanger blower according to this value.
[0048]
According to the present invention, an abrupt change in the outdoor heat exchanger capacity that occurs when the outdoor heat exchanger blower is started during cooling is suppressed, and the outdoor heat exchanger that should be a condenser acts as an evaporator depending on the outside air temperature. An air conditioning and hot water supply apparatus that does not have to be obtained is obtained.
[0049]
Another means is to provide temperature detection means for the refrigerant and outside air of the outdoor heat exchanger, and to control the blower for the outdoor heat exchanger based on this value.
[0050]
  According to the present invention, an abrupt change in the outdoor heat exchanger capacity that occurs when the outdoor heat exchanger blower is started during cooling is suppressed, and the outdoor heat exchanger that should be a condenser acts as an evaporator depending on the outside air temperature. An air conditioning and hot water supply apparatus that does not have to be obtained is obtained.The other means is a heating / cooling hot water supply apparatus comprising a compressor, a hot water supply heat exchanger, an outdoor heat exchanger, an air conditioning heat exchanger, an expansion mechanism, a four-way valve, and an outdoor heat exchanger blower. When the temperature detection means is provided in the warm water or refrigerant of the cooler or the refrigerant of the outdoor heat exchanger and the outside air, and the cooling and hot water supply are operated simultaneously, the temperature of the outdoor heat exchanger becomes substantially equal to the outside air temperature. The blower for the outdoor heat exchanger is started. And according to the present invention, when the cooling and hot water supply are operated simultaneously, the outdoor heat exchanger blower is activated when the temperature of the outdoor heat exchanger becomes substantially equal to the outside air temperature. It has the effect of suppressing rapid changes in outdoor heat exchanger capacity caused by startup and suppressing cycle fluctuations due to changes in the balance between condensation capacity and evaporation capacity. Depending on the outside air temperature, an air conditioning and hot water supply apparatus can be obtained in which an outdoor heat exchanger that should be a condenser does not act as an evaporator.
[0052]
DETAILED DESCRIPTION OF THE INVENTION
  The present invention is a heating and cooling water heater comprising a compressor, a hot water supply heat exchanger, an outdoor heat exchanger, an air conditioning heat exchanger, an expansion mechanism, a four-way valve, and an outdoor heat exchanger blower.Piping bypassing the heat exchanger for hot water supplyProviding bypass pipingWith a flow control valveIn the case of simultaneous operation of cooling and hot water supply, the two-phase refrigerant always flows through the outdoor heat exchanger by preventing the flow rate adjustment valve from closing below a certain level.In the case of simultaneous operation of cooling and hot water supplyThe flowControlling in the direction to open the volume adjustment valve reduces hot water supply capacity, and control in the direction to close the flow adjustment valve increases hot water supply capacity, but by preventing the flow adjustment valve from closing below a certain level, the outdoor heat exchanger The two-phase refrigerant always flows in the flow, and the fluctuation of the optimum filling amount in the cycle is suppressed. Furthermore, by always giving the outdoor heat exchanger a condensing load, a certain degree of condensing pressure can be maintained even during hot water supply high loads, and freezing of the air conditioner heat exchanger due to an unnecessarily low evaporation pressure can be improved. It has the action.
[0056]
  In addition, temperature detection means is provided in the hot water or refrigerant of the hot water supply heat exchanger or in the refrigerant and outside air of the outdoor heat exchanger, and the activation of the blower for the outdoor heat exchanger is controlled by this value. When driving simultaneously,AboveWhen the temperature of the outdoor heat exchanger is almost equal to the outside air temperatureAboveBlower for outdoor heat exchangerLaunchby doing,AboveCaused by the start of an outdoor heat exchanger blowerAboveIt has the effect of suppressing rapid changes in outdoor heat exchanger capacity and suppressing cycle fluctuations due to changes in the balance between condensation capacity and evaporation capacity.
[0057]
Embodiments of the present invention will be described below with reference to the drawings.
[0058]
【Example】
  (referenceExample 1)
  FIG. 1 shows a cycle configuration diagram of an air conditioning and hot water supply apparatus of the present invention. A heating / cooling hot water supply apparatus including a compressor 101, a hot water supply heat exchanger 102, an outdoor heat exchanger 103, an air conditioning heat exchanger 104, an expansion mechanism 105, a four-way valve 106, an outdoor heat exchanger blower 107, and a hot water supply pump 108. The bypass pipe 1 that bypasses the hot water supply heat exchanger 102 is provided.
[0059]
In the above configuration, the high-pressure refrigerant gas compressed by the compressor 101 is diverted to the bypass pipe 1 and the hot water supply heat exchanger 102, and the pressure loss is reduced and the high pressure is lowered, thereby improving the efficiency by reducing the work amount of the compressor. The In addition, when the temperature of the hot water is lowered, the refrigerant in the hot water heat exchanger becomes easy to condense, so that the pressure loss is reduced and a large amount of refrigerant flows, which naturally improves the hot water supply capacity. Comfortability by capacity sharing will be improved.
[0060]
  (Example1)
  FIG. 2 shows a cycle configuration diagram of the air conditioning and hot water supply apparatus of the present invention. A heating / cooling hot water supply apparatus including a compressor 101, a hot water supply heat exchanger 102, an outdoor heat exchanger 103, an air conditioning heat exchanger 104, an expansion mechanism 105, a four-way valve 106, an outdoor heat exchanger blower 107, and a hot water supply pump 108. The bypass pipe 1 that bypasses the hot water supply heat exchanger 102 and the flow rate adjusting valve 2 are provided in the bypass pipe 1, and the hot water supply heat exchanger refrigerant inlet temperature sensor 3 serves as a temperature detection means at the refrigerant inlet and outlet of the hot water supply heat exchanger 102. A hot water supply heat exchanger refrigerant outlet temperature sensor 4 is provided, and a flow rate adjusting valve controller 5 for controlling the operation of the flow rate adjusting valve 2 according to this value is provided.
[0061]
  In the above configurationIn the case of simultaneous operation of cooling and hot water supply, outdoor heat exchange is performed by controlling the flow rate adjustment valve 2 in the same manner as in the simultaneous operation of heating and hot water supply, while preventing the flow rate adjustment valve 2 from closing below a certain level. Since the two-phase refrigerant always flows in the vessel 103, fluctuations in the optimum charging amount in the cycle are suppressed. Furthermore, the outdoor heat exchanger 103 is always provided with a condensing load, so that a certain degree of condensing pressure can be maintained even when the hot water supply is under high load, and freezing of the heat exchanger for air conditioning caused by an unnecessarily low evaporation pressure is improved. It will be possible.
[0062]
  (Reference example 2) In the case of air conditioning single operation, the high-pressure refrigerant gas compressed by the compressor 101 is diverted to the bypass pipe 1 and the hot water supply heat exchanger 102 by opening the flow rate adjusting valve 2 fully open. By reducing the loss and reducing the high pressure, the efficiency is improved by reducing the work of the compressor.Further, in the case of a single hot water supply operation, the same operation as the conventional one can be performed by fully closing the flow rate adjusting valve 2.
[0063]
When heating and hot water supply are operated simultaneously, a set value is given to the hot water supply heat exchanger refrigerant outlet temperature according to the value of the hot water supply heat exchanger refrigerant inlet temperature sensor 3, and the hot water supply heat exchanger refrigerant outlet temperature is set. When the value of the sensor 4 is higher than the set value, the flow rate adjusting valve controller 5 controls the direction of opening the flow rate adjusting valve 2, and when the value of the hot water supply heat exchanger refrigerant outlet temperature sensor 4 is lower than the set value, the flow rate adjusting valve controller By controlling the flow rate adjustment valve 2 in the direction in which the flow rate adjustment valve 2 is closed at 5, the capability distribution of hot water supply and air conditioning can be performed.
[0065]
  (Example2)
  FIG. 3 shows a cycle configuration diagram of the air conditioning and hot water supply apparatus of the present invention. A heating / cooling hot water supply apparatus including a compressor 101, a hot water supply heat exchanger 102, an outdoor heat exchanger 103, an air conditioning heat exchanger 104, an expansion mechanism 105, a four-way valve 106, an outdoor heat exchanger blower 107, and a hot water supply pump 108. The bypass pipe 1 bypassing the hot water supply heat exchanger 102 and the flow rate adjusting valve 2 are provided in the bypass pipe 1, and the hot water supply heat exchanger water inlet temperature sensor 6 is provided as a temperature detection means at the hot water inlet / outlet of the hot water supply heat exchanger 102. A hot water supply heat exchanger water outlet temperature sensor 7 is provided, and a flow rate adjusting valve controller 5 for controlling the operation of the flow rate adjusting valve 2 according to this value is provided.
[0066]
  In the above configuration,In the case of simultaneous operation of cooling and hot water supply, the outdoor heat exchanger is controlled by controlling the flow rate adjustment valve 2 in the same manner as in the simultaneous operation of heating and hot water supply, while preventing the flow rate adjustment valve 2 from closing below a certain level. Since the two-phase refrigerant always flows through 103, fluctuations in the optimum charging amount in the cycle are suppressed. Furthermore, the outdoor heat exchanger 103 is always provided with a condensing load, so that a certain degree of condensing pressure can be maintained even when the hot water supply is under high load, and freezing of the heat exchanger for air conditioning caused by an unnecessarily low evaporation pressure is improved. It will be possible.
[0067]
(Reference Example 3) In the case of air conditioning single operation, the high-pressure refrigerant gas compressed by the compressor 101 is divided into the bypass pipe 1 and the hot water supply heat exchanger 102 by opening the flow rate adjusting valve 2 fully open, and the pressure By reducing the loss and reducing the high pressure, the efficiency is improved by reducing the work of the compressor.Further, in the case of a single hot water supply operation, the same operation as the conventional one can be performed by fully closing the flow rate adjusting valve 2.
[0068]
Further, when heating and hot water supply are operated simultaneously, a set value is given to the hot water supply heat exchanger water outlet temperature corresponding to the value of the hot water supply heat exchanger water inlet temperature sensor 6, and the hot water supply heat exchanger water outlet temperature is set. When the value of the sensor 7 is higher than the set value, the flow rate adjusting valve controller 5 controls to open the flow rate adjusting valve 2, and when the value of the hot water supply heat exchanger water outlet temperature sensor 7 is lower than the set value, the flow rate adjusting valve controller By controlling the flow rate adjustment valve 2 in the direction in which the flow rate adjustment valve 2 is closed at 5, the capability distribution of hot water supply and air conditioning can be performed.
[0070]
  (Example3)
  FIG. 4 shows a cycle configuration diagram of the air conditioning and hot water supply apparatus of the present invention. A heating / cooling hot water supply apparatus including a compressor 101, a hot water supply heat exchanger 102, an outdoor heat exchanger 103, an air conditioning heat exchanger 104, an expansion mechanism 105, a four-way valve 106, an outdoor heat exchanger blower 107, and a hot water supply pump 108. The bypass pipe 1 bypassing the hot water supply heat exchanger 102 and the bypass pipe 1 are provided with a flow rate adjusting valve 2, and an air conditioning capacity required rank setting device 8 and a hot water supply capacity required rank setting device 9 are provided. The flow rate adjusting valve controller 5 for controlling the operation is provided.
[0071]
  In the above configuration,When cooling and hot water supply are operated simultaneously, outdoor heat exchange is performed by fixing the flow rate adjusting valve 2 at a constant opening regardless of the value of the hot water supply capacity request rank setting device 9. Since the two-phase refrigerant always flows in the vessel 103, fluctuations in the optimum charging amount in the cycle are suppressed. Furthermore, the outdoor heat exchanger 103 is always provided with a condensing load, so that a certain degree of condensing pressure can be maintained even when the hot water supply is under high load, and freezing of the heat exchanger for air conditioning caused by an unnecessarily low evaporation pressure is improved. It will be possible.
[0072]
  (Reference Example 4) In the case of air conditioning single operation, the high-pressure refrigerant gas compressed by the compressor 101 is diverted to the bypass pipe 1 and the hot water supply heat exchanger 102 by opening the flow rate adjustment valve 2 fully open, and the pressure By reducing the loss and reducing the high pressure, the efficiency is improved by reducing the work of the compressor.Further, in the case of a single hot water supply operation, the same operation as the conventional one can be performed by fully closing the flow rate adjusting valve 2.
[0073]
In the case of simultaneous operation of heating and hot water supply, the flow rate adjustment valve controller 5 controls the flow rate adjustment valve 2 by a calculation formula using the air conditioning capability requirement rank setting device 8 and the hot water supply capability requirement rank setting device 9 as parameters. Basically, when the value of the air conditioning capability required rank setting device 8 is larger than the value of the hot water supply capability required rank setting device 9, the flow rate adjustment valve 2 is controlled to open, and the value of the air conditioning capability required rank setting device 8 is the hot water supply capability. When the value is smaller than the value of the required rank setting device 9, by controlling the flow rate adjustment valve 2 in the closing direction, the hot water supply and air conditioning capacity distribution according to the request can be performed.
[0075]
  (Example4)
  FIG. 5 shows a cycle configuration diagram of the air conditioning and hot water supply apparatus of the present invention. A heating / cooling hot water supply apparatus including a compressor 101, a hot water supply heat exchanger 102, an outdoor heat exchanger 103, an air conditioning heat exchanger 104, an expansion mechanism 105, a four-way valve 106, an outdoor heat exchanger blower 107, and a hot water supply pump 108. The bypass pipe 1 bypassing the hot water supply heat exchanger 102 and the flow rate adjusting valve 2 are provided in the bypass pipe 1, and the air conditioning capacity required rank setting device 8, the hot water supply capacity required rank setting device 9, the clock 10, and the outside air temperature sensor 11 are provided. The flow rate adjusting valve controller 5 for controlling the operation of the flow rate adjusting valve 2 by this value is provided.
[0076]
  In the above configuration,When cooling and hot water supply are operated simultaneously, outdoor heat exchange is performed by fixing the flow rate adjusting valve 2 at a constant opening regardless of the value of the hot water supply capacity request rank setting device 9. Since the two-phase refrigerant always flows in the vessel 103, fluctuations in the optimum charging amount in the cycle are suppressed. Furthermore, the outdoor heat exchanger 103 is always provided with a condensing load, so that a certain degree of condensing pressure can be maintained even when the hot water supply is under high load, and freezing of the heat exchanger for air conditioning caused by an unnecessarily low evaporation pressure is improved. It will be possible.
[0077]
  (Reference Example 5) In the case of air conditioning single operation, the high-pressure refrigerant gas compressed by the compressor 101 is diverted to the bypass pipe 1 and the hot water supply heat exchanger 102 by opening the flow rate adjustment valve 2 fully open. By reducing the loss and reducing the high pressure, the efficiency is improved by reducing the work of the compressor.Further, in the case of a single hot water supply operation, the same operation as the conventional one can be performed by fully closing the flow rate adjusting valve 2.
[0078]
Further, when heating and hot water supply are simultaneously operated, the air conditioning capability requirement rank setting device 8 and the hot water supply capability requirement rank setting device 9 according to the time by the clock 10 and the outside air temperature by the outside air temperature sensor 11 are used as a calculation formula. The flow rate adjustment valve controller 5 controls the flow rate adjustment valve 2. Basically, when the value of the air conditioning capability required rank setting device 8 is larger than the value of the hot water supply capability required rank setting device 9, the flow rate adjustment valve 2 is controlled to open, and the value of the air conditioning capability required rank setting device 8 is the hot water supply capability. When the value is smaller than the value of the required rank setting device 9, the flow control valve 2 is controlled to close. However, when the outside air temperature is low, priority is given to the air conditioning capacity, and from 0:00 am to 6 am and from 11 am to 3 pm By giving priority to the hot water supply capacity, it is possible to distribute the hot water supply and air conditioning capacity as required and necessary.
[0080]
  (Example5)
  FIG. 6 shows a cycle configuration diagram of the air conditioning and hot water supply apparatus of the present invention. A heating / cooling hot water supply apparatus including a compressor 101, a hot water supply heat exchanger 102, an outdoor heat exchanger 103, an air conditioning heat exchanger 104, an expansion mechanism 105, a four-way valve 106, an outdoor heat exchanger blower 107, and a hot water supply pump 108. The bypass pipe 1 bypassing the hot water supply heat exchanger 102 and the flow rate adjusting valve 2 are provided in the bypass pipe 1, the compressor suction pressure sensor 12 is provided, and the flow rate adjusting valve controller for controlling the operation of the flow rate adjusting valve 2 by this value 5 is provided.
[0081]
  In the above configuration,In the case of simultaneous operation of cooling and hot water supply, the outdoor heat exchanger is controlled by controlling the flow rate adjustment valve 2 in the same manner as in the simultaneous operation of heating and hot water supply, while preventing the flow rate adjustment valve 2 from closing below a certain level. Since the two-phase refrigerant always flows through 103, fluctuations in the optimum charging amount in the cycle are suppressed. Furthermore, the outdoor heat exchanger 103 is always provided with a condensing load, so that a certain degree of condensing pressure can be maintained even when the hot water supply is under high load, and freezing of the heat exchanger for air conditioning caused by an unnecessarily low evaporation pressure is improved. It will be possible.
[0082]
  (Reference Example 6) In the case of air conditioning single operation, the high-pressure refrigerant gas compressed by the compressor 101 is diverted to the bypass pipe 1 and the hot water supply heat exchanger 102 by opening the flow rate adjusting valve 2 fully open. By reducing the loss and reducing the high pressure, the efficiency is improved by reducing the work of the compressor.Further, in the case of a single hot water supply operation, the same operation as the conventional one can be performed by fully closing the flow rate adjusting valve 2.
[0083]
Further, when heating and hot water supply are operated simultaneously, when the value of the compressor suction pressure sensor 12 is higher than the set value, the flow rate control valve controller 5 controls the flow rate control valve 2 so as to close the compressor suction pressure sensor. When the value of 12 is lower than the set value, the flow rate adjustment valve controller 5 controls the flow rate adjustment valve 2 in the direction in which the flow rate adjustment valve 2 is opened.
[0085]
  (Example6)
  FIG. 7 shows a cycle configuration diagram of the air conditioning and hot water supply apparatus of the present invention. A heating / cooling hot water supply apparatus including a compressor 101, a hot water supply heat exchanger 102, an outdoor heat exchanger 103, an air conditioning heat exchanger 104, an expansion mechanism 105, a four-way valve 106, an outdoor heat exchanger blower 107, and a hot water supply pump 108. The bypass pipe 1 bypassing the hot water supply heat exchanger 102 and the bypass pipe 1 are provided with a flow rate adjusting valve 2, and the air conditioning heat exchanger water temperature sensor 13 and the air conditioning heat exchanger refrigerant temperature sensor 14 are provided. The flow control valve controller 5 for controlling the operation of the flow control valve 2 is provided.
[0086]
  In the above configuration,When cooling and hot water supply are operated simultaneously, the air-conditioning heat exchanger refrigerant temperature is set according to the value of the air-conditioning heat exchanger water temperature sensor 13, and the value of the air-conditioning heat exchanger refrigerant temperature sensor 14 is the set value. When the value is higher, the flow rate adjustment valve controller 5 controls the flow rate adjustment valve 2 to close. When the value of the air conditioner heat exchanger refrigerant temperature sensor 14 is lower than the set value, the flow rate adjustment valve controller 5 sets the flow rate adjustment valve 2. By controlling the opening direction so that the flow rate adjusting valve 2 does not close below a certain level, the two-phase refrigerant always flows through the outdoor heat exchanger 103, thereby suppressing fluctuations in the optimum charging amount in the cycle. Furthermore, the outdoor heat exchanger 103 is always provided with a condensing load, so that a certain degree of condensing pressure can be maintained even when the hot water supply is under high load, and freezing of the heat exchanger for air conditioning caused by an unnecessarily low evaporation pressure is improved. It will be possible.
[0087]
  (Reference Example 7) In the case of air conditioning single operation, the high-pressure refrigerant gas compressed by the compressor 101 is divided into the bypass pipe 1 and the hot water supply heat exchanger 102 by opening the flow rate adjusting valve 2 fully open, and the pressure By reducing the loss and reducing the high pressure, the efficiency is improved by reducing the work of the compressor.Further, in the case of a single hot water supply operation, the same operation as the conventional one can be performed by fully closing the flow rate adjusting valve 2.
[0088]
When heating and hot water supply are operated simultaneously, the flow rate adjusting valve controller 5 is used when the value of the air conditioner heat exchanger water temperature sensor 13 is higher than the set value regardless of the value of the air conditioner heat exchanger refrigerant temperature sensor 14. The flow control valve 2 is controlled in the direction to close, and when the air conditioner heat exchanger water temperature sensor 13 is lower than the set value, the flow control valve controller 5 controls the flow control valve 2 to open the hot water supply. It will be possible to distribute the capacity of air conditioning.
[0090]
  (Example7)
FIG. 8 shows a cycle configuration diagram of the air conditioning and hot water supply apparatus of the present invention. A heating / cooling hot water supply apparatus including a compressor 101, a hot water supply heat exchanger 102, an outdoor heat exchanger 103, an air conditioning heat exchanger 104, an expansion mechanism 105, a four-way valve 106, an outdoor heat exchanger blower 107, and a hot water supply pump 108. The bypass pipe 1 that bypasses the hot water supply heat exchanger 102 and the flow rate adjusting valve 2 are provided in the bypass pipe 1, and the outdoor heat exchanger refrigerant temperature sensor 15 serves as a supercooling degree detection means of the outdoor unit heat exchanger 103 during cooling operation. An outdoor heat exchanger refrigerant pressure sensor 16 is provided, and a flow rate adjustment valve controller 5 that controls the operation of the flow rate adjustment valve 2 according to this value is provided.
[0091]
  In the above configuration,When cooling and hot water supply are operated simultaneously, the outdoor heat exchanger refrigerant temperature is set according to the value of the outdoor heat exchanger refrigerant pressure sensor 16, and the value of the outdoor heat exchanger refrigerant temperature sensor 15 is higher than the set value. (When the degree of supercooling is not greater than the setting) When the flow rate adjustment valve controller 5 controls the flow rate adjustment valve 2 to close, and the value of the outdoor heat exchanger refrigerant temperature sensor 15 is lower than the set value (degree of supercooling) By adjusting the flow rate adjusting valve controller 5 in the direction to open the flow rate adjusting valve 2 and preventing the flow rate adjusting valve 2 from closing below a certain level, the outdoor heat exchanger 103 can always be controlled. The flow of the optimal filling amount in the cycle is suppressed by the flow of the two-phase refrigerant. Furthermore, the outdoor heat exchanger 103 is always provided with a condensing load, so that a certain degree of condensing pressure can be maintained even when the hot water supply is under high load, and freezing of the heat exchanger for air conditioning caused by an unnecessarily low evaporation pressure is improved. It will be possible.
[0092]
  (Reference Example 8) In the case of air conditioning single operation, the high-pressure refrigerant gas compressed by the compressor 101 is diverted to the bypass pipe 1 and the hot water supply heat exchanger 102 by opening the flow rate adjusting valve 2 fully open. By reducing the loss and reducing the high pressure, the efficiency is improved by reducing the work of the compressor.Further, in the case of a single hot water supply operation, the same operation as the conventional one can be performed by fully closing the flow rate adjusting valve 2.
[0093]
Further, when heating and hot water supply are operated simultaneously, the high-pressure refrigerant gas compressed by the compressor 101 is diverted to the bypass pipe 1 and the hot water supply heat exchanger 102 by opening the flow rate adjusting valve 2 fully open. Efficiency is improved by reducing the work of the compressor by reducing the loss and reducing the high pressure. In addition, when the temperature of the hot water is lowered, the refrigerant in the hot water heat exchanger becomes easy to condense, so that the pressure loss is reduced and a large amount of refrigerant flows, which naturally improves the hot water supply capacity. Comfortability by capacity sharing will be improved.
[0095]
  (Example8)
  FIG. 9 shows a cycle configuration diagram of the air conditioning and hot water supply apparatus of the present invention. A heating / cooling hot water supply apparatus including a compressor 101, a hot water supply heat exchanger 102, an outdoor heat exchanger 103, an air conditioning heat exchanger 104, an expansion mechanism 105, a four-way valve 106, an outdoor heat exchanger blower 107, and a hot water supply pump 108. The three-way valve 17 is provided in the bypass branch 1 on the refrigerant inlet side of the hot water supply heat exchanger 102 and the bypass pipe 1 that bypasses the hot water heat exchanger 102, and hot water supply is provided as a temperature detection means at the refrigerant inlet / outlet of the hot water heat exchanger 102. A heat exchanger refrigerant inlet temperature sensor 3 and a hot water supply heat exchanger refrigerant outlet temperature sensor 4 are provided, and a hot water supply pump controller 18 is provided as means for controlling the amount of hot water in the hot water supply heat exchanger 102 based on this value. Yes.
[0096]
  In the above configuration,When operating cooling and hot water supply at the same time, the output of the hot water supply pump 108 is controlled in the same way as during the simultaneous operation of heating and hot water supply, so that the hot water supply capacity is suppressed and the outdoor heat exchanger 103 always has a condensing load. As a result, a certain degree of condensation pressure can be maintained, and freezing of the heat exchanger for air conditioning due to an unnecessarily low evaporation pressure can be improved.
[0097]
  (Reference Example 9) In the case of air conditioning single operation, the pressure loss is reduced by flowing the high-pressure refrigerant gas compressed by the compressor 101 to the bypass pipe 1 by the three-way valve 17 and bypassing the hot water supply heat exchanger 102. However, when the high pressure is lowered, the efficiency is improved by reducing the work amount of the compressor.In the case of an operation that requires hot water supply, the hot water supply operation can be performed by flowing the high-pressure refrigerant gas compressed by the compressor 101 to the hot water supply heat exchanger 102 through the three-way valve 17.
[0098]
In the case of a single hot water supply operation, the same operation as before can be performed by maximizing the output of the hot water supply pump 108 by the hot water supply pump controller 18.
[0099]
When heating and hot water supply are operated simultaneously, a set value is given to the hot water supply heat exchanger refrigerant outlet temperature according to the value of the hot water supply heat exchanger refrigerant inlet temperature sensor 3, and the hot water supply heat exchanger refrigerant outlet temperature is set. When the value of the sensor 4 is higher than the set value, the hot water supply pump controller 18 controls to increase the output of the hot water supply pump 108, and when the value of the hot water supply heat exchanger refrigerant outlet temperature sensor 4 is lower than the set value, for hot water supply. By controlling the output of the hot water supply pump 108 to be lowered by the pump controller 18, it is possible to distribute the hot water supply and air conditioning capacity.
[0101]
  (Example9)
  FIG. 10 shows a cycle configuration diagram of the air conditioning and hot water supply apparatus of the present invention. A heating / cooling hot water supply apparatus including a compressor 101, a hot water supply heat exchanger 102, an outdoor heat exchanger 103, an air conditioning heat exchanger 104, an expansion mechanism 105, a four-way valve 106, an outdoor heat exchanger blower 107, and a hot water supply pump 108. A three-way valve 17 is provided at the bypass junction 1 on the refrigerant outlet side of the hot water supply heat exchanger 102 and the bypass pipe 1 bypassing the hot water heat exchanger 102, and hot water supply as a temperature detection means at the hot water inlet / outlet of the hot water heat exchanger 102. A heat exchanger water inlet temperature sensor 6 and a hot water supply heat exchanger water outlet temperature sensor 7 are provided, and a hot water supply pump controller 18 is provided as means for controlling the amount of hot water in the hot water supply heat exchanger 102 based on this value. Yes.
[0102]
  In the above configuration,When operating cooling and hot water supply at the same time, the output of the hot water supply pump 108 is controlled in the same way as during the simultaneous operation of heating and hot water supply, so that the hot water supply capacity is suppressed and the outdoor heat exchanger 103 always has a condensing load. As a result, a certain degree of condensation pressure can be maintained, and freezing of the heat exchanger for air conditioning due to an unnecessarily low evaporation pressure can be improved.
[0103]
  (Reference Example 10) In the case of air conditioning single operation, the pressure loss is reduced by flowing the high-pressure refrigerant gas compressed by the compressor 101 to the bypass pipe 1 by the three-way valve 17 and bypassing the hot water supply heat exchanger 102. However, when the high pressure is lowered, the efficiency is improved by reducing the work amount of the compressor.Further, in the case of an operation that requires hot water supply, an operation similar to the conventional one can be performed by flowing the high-pressure refrigerant gas compressed by the compressor 101 to the hot water supply heat exchanger 102 by the three-way valve 17. . At this time, since the three-way valve 17 is located on the outlet side of the hot water supply heat exchanger 102, the pressure loss of the three-way valve 17 does not affect the performance of the hot water supply heat exchanger 102, and the liquid refrigerant condensed in the three-way valve 17. Alternatively, since the two-phase refrigerant flows, the efficiency loss is improved by reducing the pressure loss of the three-way valve 17.
[0104]
In the case of a single hot water supply operation, the same operation as before can be performed by maximizing the output of the hot water supply pump 108 by the hot water supply pump controller 18.
[0105]
Further, when heating and hot water supply are operated simultaneously, a set value is given to the hot water supply heat exchanger water outlet temperature corresponding to the value of the hot water supply heat exchanger water inlet temperature sensor 6, and the hot water supply heat exchanger water outlet temperature is set. When the value of the sensor 7 is higher than the set value, the hot water supply pump controller 18 controls to increase the output of the hot water supply pump 108, and when the value of the hot water supply heat exchanger water outlet temperature sensor 7 is lower than the set value, for hot water supply. By controlling the output of the hot water supply pump 108 to be lowered by the pump controller 18, it is possible to distribute the hot water supply and air conditioning capacity.
[0107]
(Example10)
FIG. 11 shows a cycle configuration diagram of the air conditioning and hot water supply apparatus of the present invention. A heating / cooling hot water supply apparatus including a compressor 101, a hot water supply heat exchanger 102, an outdoor heat exchanger 103, an air conditioning heat exchanger 104, an expansion mechanism 105, a four-way valve 106, an outdoor heat exchanger blower 107, and a hot water supply pump 108. The bypass pipe 1 bypassing the hot water supply heat exchanger 102 and the flow rate adjusting valve 2 are provided in the bypass pipe 1, the compressor suction pressure sensor 12 is provided, and means for controlling the amount of hot water in the hot water supply heat exchanger 102 by this value The hot water supply pump controller 18 is provided.
[0108]
  In the above configuration,When operating cooling and hot water supply at the same time, the output of the hot water supply pump 108 is controlled in the same way as during the simultaneous operation of heating and hot water supply, so that the hot water supply capacity is suppressed and the outdoor heat exchanger 103 always has a condensing load. As a result, a certain degree of condensation pressure can be maintained, and freezing of the heat exchanger for air conditioning due to an unnecessarily low evaporation pressure can be improved.
[0109]
  (Reference Example 11) In the case of a single hot water supply operation, the hot water supply pump controller 18 can maximize the output of the hot water supply pump 108 to perform the same operation as in the prior art.Further, when heating and hot water supply are operated simultaneously, when the value of the compressor suction pressure sensor 12 is higher than the set value, the hot water supply pump controller 18 controls the direction so as to increase the output of the hot water supply pump 108, and the compressor suction. When the value of the pressure sensor 12 is lower than the set value, the hot water supply pump controller 18 controls the output of the hot water supply pump 108 so as to reduce the output of the hot water supply and air conditioning.
[0111]
  (Example11)
  FIG. 12 shows a cycle configuration diagram of the air conditioning and hot water supply apparatus of the present invention. A heating / cooling hot water supply apparatus including a compressor 101, a hot water supply heat exchanger 102, an outdoor heat exchanger 103, an air conditioning heat exchanger 104, an expansion mechanism 105, a four-way valve 106, an outdoor heat exchanger blower 107, and a hot water supply pump 108. The bypass pipe 1 bypassing the hot water supply heat exchanger 102 and the bypass pipe 1 are provided with a flow rate adjusting valve 2, and the air conditioning heat exchanger water temperature sensor 13 and the air conditioning heat exchanger refrigerant temperature sensor 14 are provided. A hot water supply pump controller 18 is provided as means for controlling the amount of hot water in the hot water supply heat exchanger 102.
[0112]
  In the above configuration,When cooling and hot water supply are operated simultaneously, the air-conditioning heat exchanger refrigerant temperature is set according to the value of the air-conditioning heat exchanger water temperature sensor 13, and the value of the air-conditioning heat exchanger refrigerant temperature sensor 14 is the set value. When the value is higher, the hot water supply pump controller 18 controls the output of the hot water supply pump 108 to increase, and when the value of the air conditioning heat exchanger refrigerant temperature sensor 14 is lower than the set value, the hot water supply pump controller 18 controls the hot water supply pump. By controlling the output of 108 to reduce the hot water supply capacity, the outdoor heat exchanger 103 always has a condensing load, so that a certain degree of condensing pressure can be maintained and the evaporation pressure drops more than necessary. The freezing of the heat exchanger for air conditioning due to can be improved.
[0113]
  Reference Example 12 In the case of a single hot water supply operation, the hot water supply pump controller 18 can maximize the output of the hot water supply pump 108 to perform the same operation as in the prior art.When heating and hot water supply are operated simultaneously, the hot water supply pump controller 18 is used when the value of the air conditioner heat exchanger water temperature sensor 13 is higher than the set value regardless of the value of the air conditioner heat exchanger refrigerant temperature sensor 14. The output of the hot water supply pump 108 is controlled so as to increase, and when the air conditioner heat exchanger water temperature sensor 13 is lower than the set value, the hot water supply pump controller 18 controls the output of the hot water supply pump 108 to decrease. Thus, the capacity distribution of hot water supply and air conditioning can be performed.
[0115]
  (Example12)
  FIG. 13 shows a cycle configuration diagram of the air conditioning and hot water supply apparatus of the present invention. A heating / cooling hot water supply apparatus including a compressor 101, a hot water supply heat exchanger 102, an outdoor heat exchanger 103, an air conditioning heat exchanger 104, an expansion mechanism 105, a four-way valve 106, an outdoor heat exchanger blower 107, and a hot water supply pump 108. The bypass pipe 1 that bypasses the hot water supply heat exchanger 102 and the flow rate adjusting valve 2 are provided in the bypass pipe 1, and the outdoor heat exchanger refrigerant temperature sensor 15 serves as a supercooling degree detection means of the outdoor unit heat exchanger 103 during cooling operation. An outdoor heat exchanger refrigerant pressure sensor 16 is provided, and a hot water supply pump controller 18 is provided as means for controlling the amount of hot water in the hot water supply heat exchanger 102 based on this value.
[0116]
  In the above configuration,When cooling and hot water supply are operated simultaneously, the outdoor heat exchanger refrigerant temperature is set according to the value of the outdoor heat exchanger refrigerant pressure sensor 16, and the value of the outdoor heat exchanger refrigerant temperature sensor 15 is higher than the set value. (When the degree of supercooling is not greater than the setting) When the value of the outdoor heat exchanger refrigerant temperature sensor 15 is lower than the set value by controlling the hot water supply pump controller 18 to increase the output of the hot water supply pump 108 (when the supercooling degree is not taken from the setting) (When the degree of cooling is higher than the setting) By controlling the hot water supply pump controller 18 to lower the output of the hot water supply pump 108, the hot water supply capacity is suppressed and the refrigerant state of the outdoor heat exchanger 103 is stabilized. To suppress fluctuations in the optimum filling amount in the cycle. As a result, it is possible to improve the decrease in reliability due to the decrease in efficiency and the instability of the cycle.
[0117]
  (Reference Example 13) In the case of a single hot water supply operation or when heating and hot water are operated simultaneously, the same operation as before can be performed by maximizing the output of the hot water supply pump 108 by the hot water supply pump controller 18. .
[0118]
  (Example13)
  FIG. 14 shows a cycle configuration diagram of the air conditioning and hot water supply apparatus of the present invention. A heating / cooling hot water supply apparatus including a compressor 101, a hot water supply heat exchanger 102, an outdoor heat exchanger 103, an air conditioning heat exchanger 104, an expansion mechanism 105, a four-way valve 106, an outdoor heat exchanger blower 107, and a hot water supply pump 108. The bypass pipe 1 bypassing the hot water supply heat exchanger 102 and the flow rate adjusting valve 2 are provided in the bypass pipe 1, and the hot water heat exchanger water inlet temperature sensor 6 and the outside air temperature are used as hot water temperature detection means of the hot water supply heat exchanger 102. An outside air temperature sensor 11 is provided as a detection means, and an outdoor heat exchanger blower controller 19 is provided as an air volume control means of the outdoor heat exchanger blower 107 according to this value.
[0119]
In the above configuration, when cooling and hot water supply are operated simultaneously, the outdoor heat exchanger blower controller 19 performs outdoor heat when the value of the hot water supply heat exchanger water inlet temperature sensor 6 exceeds the value of the outdoor air temperature sensor 11. By starting the exchanger blower 107, the difference between the temperature of the outdoor heat exchanger 103 and the outside air temperature is small, and the outside air temperature is predicted to be smaller. Therefore, the fan 107 for the outdoor heat exchanger is used. The rapid heat capacity change of the outdoor heat exchanger 103 due to the start-up can be suppressed, and the outdoor heat exchanger 103 can be operated as a condenser. Therefore, the reliability of the cycle can be improved and the air pressure can be reduced by reducing the evaporation pressure more than necessary. The freezing of the heat exchanger can be improved.
[0120]
  (Example14)
  FIG. 15 shows a cycle configuration diagram of the air conditioning and hot water supply apparatus of the present invention. A heating / cooling hot water supply apparatus including a compressor 101, a hot water supply heat exchanger 102, an outdoor heat exchanger 103, an air conditioning heat exchanger 104, an expansion mechanism 105, a four-way valve 106, an outdoor heat exchanger blower 107, and a hot water supply pump 108. The bypass pipe 1 bypassing the hot water supply heat exchanger 102 and the flow rate adjusting valve 2 are provided in the bypass pipe 1, and the hot water supply heat exchanger refrigerant outlet temperature sensor 4 and the outside air temperature are used as the refrigerant temperature detection means of the hot water supply heat exchanger 102. An outside air temperature sensor 11 is provided as a detection means, and an outdoor heat exchanger blower controller 19 is provided as an air volume control means of the outdoor heat exchanger blower 107 according to this value.
[0121]
In the above configuration, when cooling and hot water supply are operated simultaneously, the outdoor heat exchanger fan controller 19 performs outdoor heat when the value of the hot water supply heat exchanger refrigerant outlet temperature sensor 4 exceeds the value of the outdoor air temperature sensor 11. By starting the exchanger fan 107, the difference between the temperature of the outdoor heat exchanger 103 and the outside air temperature is small, and the outside air temperature is predicted to be smaller. Therefore, the fan 107 for the outdoor heat exchanger is used. The rapid heat capacity change of the outdoor heat exchanger 103 due to the start of the engine can be suppressed, and the outdoor heat exchanger 103 can be operated as a condenser. The freezing of the heat exchanger can be improved.
[0122]
  (Example15)
  FIG. 16 shows a cycle configuration diagram of the air conditioning and hot water supply apparatus of the present invention. A heating / cooling hot water supply apparatus including a compressor 101, a hot water supply heat exchanger 102, an outdoor heat exchanger 103, an air conditioning heat exchanger 104, an expansion mechanism 105, a four-way valve 106, an outdoor heat exchanger blower 107, and a hot water supply pump 108. The bypass pipe 1 bypassing the hot water supply heat exchanger 102 and the flow rate adjusting valve 2 are provided in the bypass pipe 1, and the outdoor heat exchanger refrigerant temperature sensor 15 and the outdoor air temperature detection means are used as the refrigerant temperature detection means of the outdoor heat exchanger 103. An outdoor air temperature sensor 11 is provided, and an outdoor heat exchanger blower controller 19 is provided as an air volume control means of the outdoor heat exchanger blower 107 according to this value.
[0123]
In the above configuration, when cooling and hot water supply are operated simultaneously, when the value of the outdoor heat exchanger refrigerant temperature sensor 15 exceeds the value of the outdoor air temperature sensor 11, the blower controller 19 for the outdoor heat exchanger is used for the outdoor heat exchanger. By starting the blower 107, the difference between the temperature of the outdoor heat exchanger 103 and the outside air temperature is small, and the outside air temperature is smaller, so the outdoor heat exchange by starting the blower 107 for the outdoor heat exchanger is started. Since the outdoor heat exchanger 103 can be operated as a condenser while suppressing the rapid capacity change of the condenser 103, the reliability of the cycle can be improved, and the heat exchanger for air conditioning can be frozen by reducing the evaporation pressure more than necessary. It can be improved.
[0124]
【The invention's effect】
As is clear from the above embodiments, according to the present invention, it is possible to provide an air conditioning and hot water supply apparatus having an effect of suppressing a decrease in efficiency due to pressure loss in a hot water supply heat exchanger.
[0125]
In addition, it is possible to provide an air-conditioning / heating water heater having an effect of suppressing a decrease in efficiency due to a change in the optimum filling amount in the cycle and a decrease in reliability due to instability of the cycle and freezing of the heat exchanger for air conditioning.
[0126]
In addition, it is possible to provide an air conditioning and hot water supply apparatus that can improve the comfort of hot water supply and air conditioning capacity distribution.
[0127]
In addition, it suppresses a sudden change in the capacity of the outdoor heat exchanger that occurs when the blower for the outdoor heat exchanger is activated during cooling, and the outdoor heat exchanger that should be a condenser does not act as an evaporator depending on the outside air temperature. It is possible to provide an air conditioning and hot water supply device with
[Brief description of the drawings]
FIG. 1 is a cycle configuration diagram of an air conditioning and hot water supply apparatus according to Embodiment 1 of the present invention.
FIG. 2 is a cycle configuration diagram of an air conditioning and hot water supply apparatus according to Embodiment 2 of the present invention.
FIG. 3 is a cycle configuration diagram of an air conditioning and hot water supply apparatus according to a third embodiment of the present invention.
FIG. 4 is a cycle configuration diagram of an air conditioning and hot water supply apparatus according to a fourth embodiment of the present invention.
FIG. 5 is a cycle configuration diagram of an air conditioning and hot water supply apparatus according to a fifth embodiment of the present invention.
FIG. 6 is a cycle configuration diagram of an air conditioning and hot water supply apparatus according to Embodiment 6 of the present invention.
FIG. 7 is a cycle configuration diagram of an air conditioning and hot water supply apparatus according to Embodiment 7 of the present invention.
FIG. 8 is a cycle configuration diagram of an air conditioning and hot water supply apparatus according to an eighth embodiment of the present invention.
FIG. 9 is a cycle configuration diagram of an air conditioning and hot water supply apparatus according to Embodiment 9 of the present invention.
FIG. 10 is a cycle configuration diagram of an air conditioning and hot water supply apparatus according to Embodiment 10 of the present invention.
FIG. 11 is a cycle configuration diagram of an air conditioning and hot water supply apparatus according to Embodiment 11 of the present invention.
FIG. 12 is a cycle configuration diagram of an air conditioning and hot water supply apparatus according to Embodiment 12 of the present invention.
FIG. 13 is a cycle configuration diagram of an air conditioning and hot water supply apparatus according to Embodiment 13 of the present invention.
FIG. 14 is a cycle configuration diagram of an air conditioning and hot water supply apparatus according to Embodiment 14 of the present invention.
FIG. 15 is a cycle configuration diagram of an air conditioning and hot water supply apparatus according to Embodiment 15 of the present invention.
FIG. 16 is a cycle configuration diagram of an air conditioning and hot water supply apparatus according to Embodiment 16 of the present invention.
FIG. 17 is a cycle configuration diagram of a conventional air conditioning and hot water supply apparatus.
[Explanation of symbols]
1 Bypass pipe
2 Flow control valve
3 Hot water supply heat exchanger refrigerant inlet temperature sensor
4 Heat exchanger for hot water supply Refrigerant outlet temperature sensor
5 Flow control valve controller
6 Heat exchanger water inlet temperature sensor for hot water supply
7 Heat exchanger for hot water supply Water outlet temperature sensor
8 Air conditioning capacity requirement rank setting device
9 Hot water supply capacity requirement rank setting device
10 Clock
11 Outside air temperature sensor
12 Compressor suction pressure sensor
13 Heat exchanger for air conditioning Water temperature sensor
14 Heat exchanger for air conditioning Refrigerant temperature sensor
15 Outdoor heat exchanger refrigerant temperature sensor
16 Outdoor heat exchanger refrigerant pressure sensor
17 Three-way valve
18 Hot water pump controller
19 Blower controller for outdoor heat exchanger

Claims (17)

圧縮機と給湯用熱交換器と室外熱交換器と空調用熱交換器と膨張機構部と四方弁と室外熱交換器用送風機からなる冷暖房給湯装置において、前記給湯用熱交換器をバイパスする配管を設け前記バイパスする配管に流量調整弁を設け、冷房と給湯を同時運転する場合には一定以下に前記流量調整弁が閉まらないようにすることで前記室外熱交換器に常に二相冷媒が流れることを特徴とする冷暖房給湯装置。In air conditioning hot water supply apparatus comprising a compressor and the hot water supply heat exchanger and the outdoor heat exchanger and the air conditioning heat exchanger and the expansion mechanism part and the four-way valve and an outdoor heat exchanger fan, a pipe that bypasses the heat exchanger for the hot water supply Provided with a flow adjustment valve in the bypass piping , and when cooling and hot water supply are operated simultaneously, two-phase refrigerant always flows through the outdoor heat exchanger by preventing the flow adjustment valve from closing below a certain level. cold heating and hot water supply system shall be the features a. 請求項１記載の冷暖房給湯装置において、給湯用熱交換器の冷媒出入口に温度検知手段を設け、この値によって流量調整弁の動作を制御する冷暖房給湯装置の制御方法。2. The method of controlling an air conditioning / hot water supply apparatus according to claim 1 , wherein temperature detecting means is provided at the refrigerant inlet / outlet of the hot water supply heat exchanger, and the operation of the flow rate adjusting valve is controlled by this value. 請求項１記載の冷暖房給湯装置において、給湯用熱交換器の温水出入口の双方もしくはいずれか一方に温度検知手段を設け、この値によって流量調整弁の動作を制御する冷暖房給湯装置の制御方法。2. The method of controlling an air conditioning and hot water supply apparatus according to claim 1 , wherein temperature detection means is provided at both or any one of the hot water outlets and inlets of the hot water supply heat exchanger, and the operation of the flow rate adjusting valve is controlled by this value. 請求項１記載の冷暖房給湯装置において、給湯能力要求ランクと空調能力要求ランクによって流量調整弁の動作を制御する冷暖房給湯装置の制御方法。2. The method of controlling an air conditioning and hot water supply apparatus according to claim 1, wherein the operation of the flow rate adjusting valve is controlled by a hot water supply capacity request rank and an air conditioning capacity request rank. 請求項１記載の冷暖房給湯装置において、時刻と外気温度検知手段の双方またはいずれか一方を設けて、前記時刻と前記外気温度の双方またはいずれか一方の値と給湯能力要求ランクと空調能力要求ランクによって流量調整弁の動作を制御する冷暖房給湯装置の制御方法。The air-conditioning / hot water supply apparatus according to claim 1 , wherein both time and / or an outside air temperature detection means are provided, and the value of both the time and / or the outside air temperature, the hot water supply capacity requirement rank, and the air conditioning capacity requirement rank. The control method of the heating / cooling hot-water supply apparatus which controls operation | movement of a flow regulating valve by. 請求項１記載の冷暖房給湯装置において、圧縮機吸入もしくは空調用熱交換器の冷媒出入口のいずれか一方に圧力検知手段を設け、この値によって流量調整弁の動作を制御する冷暖房給湯装置の制御方法。2. The method for controlling an air conditioning and hot water supply apparatus according to claim 1 , wherein pressure detection means is provided at either the compressor inlet or the refrigerant inlet / outlet of the air conditioner heat exchanger, and the operation of the flow rate adjusting valve is controlled by this value. . 請求項１記載の冷暖房給湯装置において、空調用熱交換器の冷媒と水温の双方もしくはいずれか一方に温度検知手段を設け、この値によって流量調整弁の動作を制御する冷暖房給湯装置の制御方法。2. The method for controlling an air conditioning and hot water supply apparatus according to claim 1 , wherein temperature detecting means is provided in either or both of the refrigerant and the water temperature of the air conditioning heat exchanger, and the operation of the flow rate adjusting valve is controlled by this value. 請求項１記載の冷暖房給湯装置において、室外機用熱交換器の過冷却度を検知する手段を設け、この値によって流量調整弁の動作を制御する冷暖房給湯装置の制御方法。2. The method of controlling an air conditioning and hot water supply apparatus according to claim 1, wherein means for detecting the degree of supercooling of the outdoor unit heat exchanger is provided, and the operation of the flow rate adjusting valve is controlled by this value. 請求項１記載の冷暖房給湯装置において、給湯用熱交換器の冷媒出入口に温度検知手段を設け、この値によって給湯用熱交換器の温水水量を制御する冷暖房給湯装置の制御方法。2. The method of controlling an air conditioning and hot water supply apparatus according to claim 1 , wherein temperature detecting means is provided at the refrigerant inlet / outlet of the hot water supply heat exchanger, and the amount of hot water in the hot water supply heat exchanger is controlled by this value. 請求項１記載の冷暖房給湯装置において、給湯用熱交換器の温水出入口の双方もしくはいずれか一方に温度検知手段を設け、この値によって給湯用熱交換器の温水水量を制御する冷暖房給湯装置の制御方法。2. The air conditioning and hot water supply apparatus according to claim 1 , wherein temperature detecting means is provided at both or any one of the hot water inlet and outlet of the hot water supply heat exchanger, and the amount of hot water in the hot water supply heat exchanger is controlled by this value. Method. 請求項１記載の冷暖房給湯装置において、圧縮機吸入もしくは空調用熱交換器の冷媒出入口のいずれか一方に圧力検知手段を設け、この値によって給湯用熱交換器の温水水量を制御する冷暖房給湯装置の制御方法。2. The air conditioning and hot water supply apparatus according to claim 1 , wherein pressure detection means is provided at either the compressor inlet or the refrigerant inlet / outlet of the air conditioning heat exchanger, and the amount of hot water in the hot water supply heat exchanger is controlled by this value. Control method. 請求項１記載の冷暖房給湯装置において、空調用熱交換器の冷媒と水温の双方もしくはいずれか一方に温度検知手段を設け、この値によって給湯用熱交換器の温水水量を制御する冷暖房給湯装置の制御方法。The air conditioning and hot water supply apparatus according to claim 1 , wherein temperature detection means is provided in either or both of the refrigerant and the water temperature of the air conditioning heat exchanger, and the amount of hot water in the hot water supply heat exchanger is controlled by this value. Control method. 請求項１記載の冷暖房給湯装置において、室外機用熱交換器の過冷却度を検知する手段を設け、この値によって給湯用熱交換器の温水水量を制御する冷暖房給湯装置の制御方法。2. The method of controlling an air conditioning and hot water supply apparatus according to claim 1, further comprising means for detecting a degree of supercooling of the heat exchanger for outdoor units, and controlling the amount of hot water in the heat exchanger for hot water supply according to this value. 請求項１記載の冷暖房給湯装置において、給湯用熱交換器の温水と外気に温度検知手段を設け、この値によって室外熱交換器用送風機を制御する冷暖房給湯装置の制御方法。2. The method of controlling an air conditioning and hot water supply apparatus according to claim 1 , wherein temperature detecting means is provided in the hot water and outside air of the hot water supply heat exchanger, and the outdoor heat exchanger blower is controlled by this value. 請求項１記載の冷暖房給湯装置において、給湯用熱交換器の冷媒と外気に温度検知手段を設け、この値によって室外熱交換器用送風機を制御する冷暖房給湯装置の制御方法。2. The method for controlling an air conditioning and hot water supply apparatus according to claim 1 , wherein temperature detecting means is provided in the refrigerant and outside air of the hot water supply heat exchanger, and the outdoor heat exchanger blower is controlled by this value. 請求項１の冷暖房給湯装置において、室外用熱交換器の冷媒と外気に温度検知手段を設け、この値によって室外熱交換器用送風機を制御する冷暖房給湯装置の制御方法。2. The method of controlling an air conditioning and hot water supply apparatus according to claim 1 , wherein temperature detection means is provided in the refrigerant and outside air of the outdoor heat exchanger, and the outdoor heat exchanger blower is controlled by this value. 圧縮機と給湯用熱交換器と室外熱交換器と空調用熱交換器と膨張機構部と四方弁と室外熱交換器用送風機からなる冷暖房給湯装置において、前記給湯用熱交換器の温水または冷媒または前記室外用熱交換器の冷媒と外気に温度検知手段を設け、冷房と給湯を同時運転する場合に、前記室外熱交換器の温度が外気温度とほぼ等しくなった時に前記室外熱交換器用送風機を起動する冷暖房給湯装置の制御方法。In a heating / cooling hot water supply apparatus comprising a compressor, a hot water supply heat exchanger, an outdoor heat exchanger, an air conditioning heat exchanger, an expansion mechanism, a four-way valve, and an outdoor heat exchanger blower, hot water or refrigerant of the hot water supply heat exchanger or When the temperature detection means is provided in the refrigerant and the outside air of the outdoor heat exchanger and the cooling and hot water supply are operated simultaneously, when the temperature of the outdoor heat exchanger becomes substantially equal to the outside air temperature, the blower for the outdoor heat exchanger is A method for controlling an air-conditioning / heating water heater to be activated.
JP2000076217A 2000-03-17 2000-03-17 Air-conditioning and hot-water supply system and control method thereof Expired - Fee Related JP4610688B2 (en)

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