JP3661013B2 - Air conditioner with humidification function - Google Patents

Description

【００５０】
例えば、アンモニアの溶け込み度合い(Ｈ＝０.０００５３)を１００％とすると、トリメチルアミンは略１／１６に低下し、脱ガス性能は低下するため、貯水タンク内の水を入れ換える排水間隔を１６倍に伸ばしてよい。したがって、設置された場所で水の特性や空気臭い,ＶＯＣ等が変化するため、使用者の要求に応じて、リモコン操作で適切な排水間隔を設定できるようにする。
【００５１】
このように、上記第１実施形態の加湿機能を有する空気調和機では、第１熱交換器１３により室内の空気を加熱および冷却することにより暖房運転および冷房運転を行うと共に、熱効率のよいヒートポンプ回路の第２熱交換器１４により加熱された温水を疎水性多孔モジュール１に供給して加湿を行うので、消費電力を低減することができる。
【００５２】
また、上記ヒートポンプ回路の第２熱交換器１４は、加熱機能に加えて冷却機能を有するので、熱効率のよいヒートポンプ回路で冷却された水を利用して、省エネルギー効果の高い優れた脱臭機能を備えることができる。
【００５３】
また、上記ヒートポンプ回路の第２熱交換器１４を貯水タンク２内に配置することによって、貯水タンク２内の水を効率よく加熱または冷却することができる。
【００５４】
また、上記第１熱交換器１３を疎水性多孔モジュール１の風上側に配置することによって、第１熱交換器１３を介して加熱または冷却された室内空気を疎水性多孔モジュール１に供給できるので、疎水性多孔モジュール１による加湿または脱臭の効率が向上する。
【００５５】
また、上記貯水タンク２内の水を疎水性多孔モジュール１の円筒１a内の流路を介してポンプ３により循環させることによって、第２熱交換器１４により温度調節された水を疎水性多孔モジュール１に連続的に供給することができる。また、脱臭時に貯水タンク２内の水を多孔モジュール１の流路を介して循環させることによって、多孔モジュール１内の水に吸収された臭い成分の濃度上昇を抑えることができる。
【００５６】
また、上記貯水タンク２内の水を排水手段(排水配管Ｌ4,排水用電磁弁６)により排出した後に貯水タンク２内に給水手段(給水配管Ｌ3,フロートスイッチ５)により水を供給することによって、加湿運転により硬質成分の濃度が高くなりすぎてスケールが発生しないように、貯水タンク２内の水を入れ換えることができる一方、脱臭運転により臭い成分の濃度が高くなりすぎて脱臭能力が低下しないように、貯水タンク２内の水を入れ換えることができる。
【００５７】
（第２実施形態）
図２はこの発明の第２実施形態の加湿機能を有する空気調和機の概略構成図であり、２１は疎水性多孔モジュール、２２は上記疎水性多孔モジュール２１に供給する水を貯える貯水タンク、２４は上記疎水性多孔モジュール２１に室内の空気を通過させるためのファン、２５は上記貯水タンク２２に外部から水を供給するための給水配管Ｌ13に設けられたフロートスイッチ、２６は上記疎水性多孔モジュール２１内の水を排出するための排水配管Ｌ12に配設された排水用電磁弁である。上記貯水タンク２２を疎水性多孔モジュール２１よりも高い位置に配置している。上記給水配管Ｌ13とフロートスイッチ２５で給水手段を構成すると共に、排水配管Ｌ12と排水用電磁弁２６で排水手段を構成している。
【００５８】
また、上記加湿機能を有する空気調和機は、圧縮機３１と、上記圧縮機３１の吐出側に接続された四路切換弁３２と、上記四路切換弁３２に一端が接続され、疎水性多孔モジュール２１の風上側に配置された第１熱交換器３３と、上記第１熱交換器３３の他端に一端が接続され、上記疎水性多孔モジュール２１内に配置された第２熱交換器３４と、上記第２熱交換器３４の他端に一端が接続された減圧手段としての膨張弁３５と、上記膨張弁３５の他端に一端が接続された第３熱交換器３６と、上記第３熱交換器３６の他端に一端が接続され、他端が圧縮機３１の吸入側に接続されたアキュムレータ３７と、上記第３熱交換器３６に室外の空気を送るファン３８とを有している。上記圧縮機３１,四路切換弁３２,第１熱交換器３３,第２熱交換器３４,膨張弁３５,第３熱交換器３６およびアキュムレータ３７でヒートポンプ回路を構成している。
【００５９】
上記疎水性多孔モジュール２１は、貯水タンク２２内の水を流すための流路が疎水性多孔膜により形成された複数の円筒２１aと、上記複数の円筒２１aの下端を夫々接続するヘッダ２１bと、上記複数の円筒２１aの上端を夫々接続するヘッダ２１cとを有している。上記ヘッダ２１b内に形成された貯水空間に第２熱交換器３４を収容している。また、上記貯水タンク２２の下部に一端が接続された配管Ｌ11の他端を疎水性多孔モジュール２１の上側のヘッダ２１cに接続すると共に、上記疎水性多孔モジュール２１の下側のヘッダ２１bに配管Ｌ12の一端を接続している。
【００６０】
この第２実施形態の加湿機能を有する空気調和機は第１実施形態の加湿機能を有する空気調和機と同様の効果を有すると共に、第１熱交換器３３に隣接する疎水性多孔モジュール２１内に第２熱交換器３４を配置することによって、貯水タンク２２に第２熱交換器を配置するよりもポンプおよびポンプ接続配管を除去できる。また、上記疎水性多孔モジュール２１よりも高い位置にある貯水タンク２２から配管Ｌ11を介して疎水性多孔モジュール２１の上部に給水し、排水用電磁弁２６を開けて排水配管Ｌ12を介して排水するので、貯水タンク２２から疎水性多孔モジュール２１を介して循環させるためのポンプや配管が不要になる。したがって、構造を簡略化してコストを低減することができる。
【００６１】
（第３実施形態）
図３はこの発明の第３実施形態の加湿機能を有する空気調和機の概略構成図であり、４１は疎水性多孔モジュール、４２は上記疎水性多孔モジュール４１に供給する水を貯える貯水タンク、４３は上記疎水性多孔モジュール４１と貯水タンク４２とを接続する配管Ｌ31に配設されたポンプ、４４は上記疎水性多孔モジュール４１に室内の空気を通過させるためのファン、４５は上記貯水タンク４２に外部から水を供給するための給水配管Ｌ33に設けられたフロートスイッチ、４６は上記貯水タンク４２内の水を排出するための排水配管Ｌ34に配設された排水用電磁弁である。上記給水配管Ｌ33とフロートスイッチ４５で給水手段を構成すると共に、排水配管Ｌ34と排水用電磁弁４６で排水手段を構成している。
【００６２】
また、上記加湿機能を有する空気調和機は、圧縮機５１と、上記圧縮機５１の吐出側に接続された四路切換弁５２と、上記四路切換弁５２に一端が接続され、疎水性多孔モジュール４１の風上側に配置された第１熱交換器５３と、上記第１熱交換器５３の他端に一端が接続された２重管構造の第２熱交換器５４と、上記第２熱交換器５４の他端に一端が接続された減圧手段としての膨張弁５５と、上記膨張弁５５の他端に一端が接続された第３熱交換器５６と、上記第３熱交換器５６の他端に一端が接続され、他端が圧縮機５１の吸入側に接続されたアキュムレータ５７と、上記第３熱交換器５６に室外の空気を送るファン５８とを有している。上記圧縮機１１,四路切換弁１２,第１熱交換器１３,第２熱交換器１４,膨張弁１５,第３熱交換器１６およびアキュムレータ１７でヒートポンプ回路を構成している。
【００６３】
上記疎水性多孔モジュール４１は、第１実施形態の疎水性多孔モジュール１と同一の構成をしている。貯水タンク４２の下部に一端が接続された配管Ｌ31の他端を疎水性多孔モジュール４１の下側のヘッダ４１bに接続すると共に、疎水性多孔モジュール４１の上側のヘッダ４１bに配管Ｌ32の一端を接続し、その配管Ｌ32の他端を貯水タンク４２上部に配置している。上記疎水性多孔モジュール４１,貯水タンク４２,第２熱交換器５４,ポンプ４３,配管Ｌ31,配管Ｌ32で循環回路を形成している。
【００６４】
この第３実施形態の加湿機能を有する空気調和機は、第１実施形態の加湿機能を有する空気調和機と同様の効果を有すると共に、第２熱交換器５４に２重管構造の熱交換器を用いることによって、貯水タンク４２の外部に第２熱交換器５４を配置することが可能となり、構造を簡略化でき、コストを低減することができる。
【００６５】
（第４実施形態）
図４はこの発明の第４実施形態の加湿機能を有する空気調和機の概略構成図であり、６１は疎水性多孔モジュール、６２は上記疎水性多孔モジュール６１に供給する水を貯える貯水タンク、６４は上記疎水性多孔モジュール６１に室内の空気を通過させるためのファン、６５は上記貯水タンク６２に外部から水を供給するための給水配管Ｌ43に設けられたフロートスイッチ、６６は上記疎水性多孔モジュール６１内の水を排出するための排水配管Ｌ42に配設された排水用電磁弁である。上記給水配管Ｌ43とフロートスイッチ６５で給水手段を構成すると共に、排水配管Ｌ42と排水用電磁弁６６で排水手段を構成している。
【００６６】
また、上記加湿機能を有する空気調和機は、圧縮機７１と、上記圧縮機７１の吐出側に接続された四路切換弁７２と、上記四路切換弁７２に一端が接続され、疎水性多孔モジュール６１の風上側かつファン６４の風下側に配置された第１熱交換器７３と、上記第１熱交換器７３の他端に一端が接続され、上記疎水性多孔モジュール６１内に配置された第２熱交換器７４と、上記第２熱交換器７４の他端に一端が接続された減圧手段としての膨張弁７５と、上記膨張弁７５の他端に一端が接続された第３熱交換器７６と、上記第３熱交換器７６の他端に一端が接続され、他端が圧縮機７１の吸入側に接続されたアキュムレータ７７と、上記第３熱交換器７６に室外の空気を送るファン７８とを有している。上記圧縮機７１,四路切換弁７２,第１熱交換器７３,第２熱交換器７４,膨張弁７５,第３熱交換器７６およびアキュムレータ７７でヒートポンプ回路を構成している。
【００６７】
上記疎水性多孔モジュール６１は、貯水タンク６２内の水が供給される空間６１dが疎水性多孔膜により形成された複数の筒体６１aと、上記複数の筒体６１aの下端を夫々接続するヘッダ６１bとを有している。上記貯水タンク６２の下部に一端が接続された配管Ｌ41の他端を疎水性多孔モジュール６１のヘッダ６１bに接続すると共に、疎水性多孔モジュール６１のヘッダ６１bに配管Ｌ42の一端を接続している。図５は上記疎水性多孔モジュール６１の複数の筒体６１aを上方から見た図を示しており、断面形状が矩形の筒体６１aを断面の長手側が互いに隣接するようにヘッダ６１b上に夫々立設し、矢印方向の空気流に対して通風抵抗が小さくなるようにしている。また、図６は疎水性多孔モジュール６１の筒体６１a内に第２熱交換器７４のＵ字形状の伝熱管７４aが配置された状態を示す斜視図である。なお、図７に示すように、筒体６１a内のＵ字形状の伝熱管７４aに複数の金属シート６１cを帯状に夫々巻いて、伝熱面積を拡大して、熱交換効率を向上してもよい。この場合、金属シート６１cに防食塗装したり、金属シート６１cを熱収縮チューブで覆ってもよい。
【００６８】
この第４実施形態の加湿機能を有する空気調和機は、第１実施形態の加湿機能を有する空気調和機と同様の効果を有すると共に、疎水性多孔モジュール６１の複数の筒体６１aの内部に第２熱交換器７４の伝熱管を組み込むことによって、貯水タンク内に第２熱交換器を配置する場合に比べて、ポンプ,配管等による熱損失がなく、疎水性多孔モジュール６１の複数の筒体６１a内の水を直接加熱または冷却するので、効率がさらに向上する。
【００６９】
（第５実施形態）
図８はこの発明の第５実施形態の加湿機能を有する空気調和機の概略構成図であり、８１は疎水性多孔モジュール、８２は上記疎水性多孔モジュール８１に供給する水を貯える貯水タンク、８３は上記疎水性多孔モジュール８１と貯水タンク８２とを接続する配管Ｌ51に配設されたポンプ、８４は上記疎水性多孔モジュール８１に室内の空気を通過させるためのファン、８５は上記貯水タンク８２に外部から水を供給するための給水配管Ｌ53に設けられた給水用電磁弁、８６は上記貯水タンク８２内の水を排出するための排水配管Ｌ54に配設された排水用電磁弁、８７は運転操作用リモートコントローラ(以下、リモコンという)、８８は上記リモコン８７からの運転操作信号により本装置の運転を制御する制御部である。上記給水配管Ｌ53と給水用電磁弁８５で給水手段を構成すると共に、排水配管Ｌ54と排水用電磁弁８６で排水手段を構成している。
【００７０】
また、上記貯水タンク８２内の側壁に水位を検出する水位センサ１００を配置している。また、上記リモコン８７は、室内の相対湿度を検出する湿度センサ１０１と、室内の臭濃度を検出する臭いセンサ１０２と、室内温度を検出する室内温度センサ１０３を有し、室内の相対湿度,臭濃度および室内温度を表す信号を制御部８８に送る。
【００７１】
また、上記加湿機能を有する空気調和機は、圧縮機９１と、上記圧縮機９１の吐出側に接続された四路切換弁９２と、上記四路切換弁９２に一端が接続され、疎水性多孔モジュール８１の風上側かつファン８４の風下側に配置された第１熱交換器９３と、上記第１熱交換器９３の他端に一端が接続され、上記貯水タンク８２内に配置された第２熱交換器９４と、上記第２熱交換器９４の他端に一端が接続された減圧手段としての第１膨張弁９５と、上記第１膨張弁９５の他端に一端が接続された第３熱交換器９６と、上記第３熱交換器９６の他端に一端が接続され、他端が圧縮機９１の吸入側に接続されたアキュムレータ９７と、上記第３熱交換器９６に室外の空気を送るファン９８とを有している。上記圧縮機９１,四路切換弁９２,第１熱交換器９３,第２熱交換器９４,第１膨張弁９５,第３熱交換器９６およびアキュムレータ９７でヒートポンプ回路を構成している。また、上記圧縮機９１,四路切換弁９２,第１膨張弁９５,第３熱交換器９６およびアキュムレータ９７で室外ユニット９０を構成している。
【００７２】
上記疎水性多孔モジュール８１は、第１実施形態の疎水性多孔モジュール１と同一の構成をしている。上記貯水タンク８２の下部に一端が接続された配管Ｌ51の他端を疎水性多孔モジュール８１の下側のヘッダ８１bに接続すると共に、上記疎水性多孔モジュール８１の上側のヘッダ８１bに配管Ｌ52の一端を接続し、その配管Ｌ52の他端を貯水タンク８２上部に配置している。上記疎水性多孔モジュール８１,貯水タンク８２,ポンプ８３,配管Ｌ51,配管Ｌ52で循環回路を形成している。また、上記疎水性多孔モジュール１の上側のヘッダ１bに、水温を検出するための温度センサ１０４を配置している。
【００７３】
上記構成の加湿機能を有する空気調和機において、リモコン８７により設定された目標相対湿度ＲＨ0,目標臭濃度Ｎ0および目標室内温度ｔ0を制御部８８により読み込むと共に、リモコン８７側の湿度センサ１０１,臭いセンサ１０２および室内温度センサ１０３により夫々検出された室内の相対湿度ＲＨ1,臭濃度Ｎ1および室内温度ｔ1を制御部８８により読み込む。そして、上記制御部８８は、室内の相対湿度ＲＨ1と目標相対湿度ＲＨ0との相対湿度差△ＲＨ(＝ＲＨ1−ＲＨ0)と、室内の臭濃度Ｎ1と目標臭濃度Ｎ0との臭濃度差△Ｎ(＝Ｎ1−Ｎ0)と、室内温度ｔ1と目標室内温度ｔ0との室内温度差△ｔ(＝ｔ1−ｔ0)とを算出し、相対湿度差△ＲＨ,臭濃度差△Ｎおよび室内温度差△ｔに基づいて、暖房運転モードにおいて、
△ｔ＞０ かつ △ＲＨ≦０ かつ △Ｎ＝０のとき、暖房加湿複合運転
△ｔ＞０ かつ △ＲＨ＝０ かつ △Ｎ＝０のとき、暖房単独運転
△ｔ＝０ かつ △ＲＨ＝０ かつ △Ｎ＞０のとき、脱臭単独運転
に切り換える一方、冷房運転モードにおいて、
△ｔ＞０ かつ △Ｎ＞０のとき、冷房脱臭複合運転
△ｔ＞０ かつ △Ｎ＝０のとき、冷房単独運転
△ｔ＝０ かつ △Ｎ＞０のとき、脱臭優先運転
に切り換える。
【００７４】
〔暖房運転モード〕
(１-１) 暖房加湿複合運転
暖房加湿複合運転では、四路切換弁９２を実線の位置に切り換えて、圧縮機９１を運転すると、圧縮機９１から吐出された冷媒は、凝縮器としての第１,第２熱交換器９３,９４で凝縮された後、第１膨張弁９５により減圧される。そして、減圧された冷媒は、蒸発器としての第３熱交換器９６で蒸発した後、アキュムレータ９７を介して圧縮機９１の吸込側に戻る。そうして、ファン８４からの室内の空気を第１熱交換器９３により温め、その温風を疎水性多孔モジュール８１を介して室内に吹き出す。また、上記第２熱交換器９４により貯水タンク８２内の水を加熱すると共に、ポンプ８３を動作させて、貯水タンク８２内の温水を配管Ｌ51を介して疎水性多孔モジュール８１に供給する。上記疎水性多孔モジュール８１に供給された温水は、複数の円筒８１a内の流路を通って配管Ｌ52を介して貯水タンク８２に戻り、温水が循環する。
【００７５】
このとき、上記疎水性多孔モジュール８１では、円筒８１a内を通過する温水から円筒８１aの疎水性多孔膜を通って、ファン８４から第１熱交換器９３を介して供給された空気に水蒸気が放出されて加湿が行われる。運転中、圧縮機９１の運転周波数を制御することによりヒートポンプ回路の加熱能力を制御して、加湿に最適な温度の温水を疎水性多孔モジュール８１に供給する。
【００７６】
そして、暖房加湿複合運転中、水に溶けている硬質成分が濃縮されてスケールが析出するのを防止するため、排水用電磁弁８６を所定時間開いて排水した後、排水用電磁弁８６を閉じて、給水用電磁弁８５を開いて新しい水を貯水タンク８２に給水し、水位センサ１００により検出された水位が所定水位になると、給水用電磁弁８５を閉じる。
【００７７】
(１-２) 暖房単独運転
上記ポンプ８３を停止し、給水用電磁弁８５を閉じ、排水用電磁弁８６を開いて、貯水タンク８２内の水を排出して、その他は「(１-１)暖房加湿複合運転」と同様に動作させることによって、第１熱交換器９３の放熱により暖房運転のみを行う。
【００７８】
(１-３) 脱臭単独運転
上記貯水タンク８２内の水の温度が脱臭に用いるのに十分に低いとき、圧縮機９１を停止し、ポンプ８３を動作させて、貯水タンク８２内の水を疎水性多孔モジュール８１を介して循環させることによって、脱臭のみを行う。なお、室内空気の臭いやその他のガスを吸収すると、水の汚染濃度が上昇して脱臭性能が低下するので、排水用電磁弁８６を所定時間開いて、貯水タンク８２内の濃度が上昇した水を排水した後に排水用電磁弁８６を閉じて、給水用電磁弁８５を開いて新しい水を貯水タンク８２に給水し、水位センサ１００により検出された水位が所定水位になると、給水用電磁弁８５を閉じる。
【００７９】
〔冷房運転モード〕
(２-１) 冷房脱臭複合運転
冷房脱臭複合運転では、四路切換弁９２を点線の位置に切り換えて、圧縮機９１を運転すると、圧縮機９１から吐出された冷媒は、凝縮器としての第３熱交換器９６で凝縮された後、第１膨張弁９５により減圧される。そして、減圧された冷媒は、蒸発器としての第１,第２熱交換器９３,９４で蒸発した後、アキュムレータ９７を介して圧縮機９１の吸込側に戻る。そうして、ファン８４からの室内の空気を第１熱交換器９３により冷やして、その冷風を疎水性多孔モジュール８１を介して室内に吹き出す。また、上記第２熱交換器９４により貯水タンク８２内の水を冷却すると共に、ポンプ８３を動作させて、貯水タンク８２内の冷水を配管Ｌ51を介して疎水性多孔モジュール８１に供給する。上記疎水性多孔モジュール８１に供給された冷水は、複数の円筒８１a内の流路を通って配管Ｌ52を介して貯水タンク８２に戻り、冷水が循環する。
【００８０】
このとき、上記疎水性多孔モジュール８１では、ファン８４から供給された空気中の臭い成分(またはガス成分)が、円筒８１aの疎水性多孔膜を通って円筒８１a内の冷水に吸収されて脱臭が行われる。運転中、圧縮機９１の運転周波数を制御することによりヒートポンプ回路の冷却能力を制御して、脱臭に最適な温度の冷水を疎水性多孔モジュール８１に供給する。
【００８１】
なお、温度センサ１０４により検出された疎水性多孔モジュール８１の水温が一定時間以上連続で下限温度(＝露点温度＋所定温度)未満となる場合は、排水用電磁弁８６を開いて貯水タンク８２を排水した後に給水用電磁弁８５を開いて貯水タンク８２に給水して、疎水性多孔モジュール８１の水温が一定時間以上連続で上記下限温度未満とならないようにする。さらに、貯水タンク８２内の水を入れ換えても、一定時間以上連続で下限温度(＝露点温度＋所定温度)未満となる場合は、圧縮機９１の運転周波数を低下させることにより、第２熱交換器９４の冷却量を減少させて、疎水性多孔モジュール８１の水温が一定時間以上連続で上記下限温度未満にならないようにする。そうすることによって、疎水性多孔モジュール８１の疎水性多孔膜への結露を防止でき、結露による効率低下等を防ぐことができる。
【００８２】
また、運転中、臭いガスやＶＯＣ(Volatile Organic compound；揮発性有機化合物)等の溶け込み濃度が吸収により徐々に増加して、吸収性能が低下するのを防止するため、排水排水用電磁弁８６を所定時間開いて排水した後、排水用電磁弁８６を閉じて、給水用電磁弁８５を開いて新しい水を貯水タンク８２に給水し、水位センサ１００により検出された水位が所定水位になると、給水用電磁弁８５を閉じる。こうして、貯水タンク８２内の濃度上昇した水を排出して、新しい水に入れ換えることによって、吸収性能(脱臭、脱ガス)を回復する。
【００８３】
(２-２) 冷房単独運転
上記ポンプ８３を停止し、給水用電磁弁８５を閉じ、排水用電磁弁８６を開いて、貯水タンク８２内の水を減少させて、その他は「(２-１)冷房脱臭複合運転」と同様に動作させることによって、第１熱交換器９３の吸熱により冷房運転のみを行う。
【００８４】
(２-３) 脱臭優先運転
脱臭単独運転では、「(２-１)冷房脱臭複合運転」と同様の運転を行うが、室内温度ｔ1が目標室内温度ｔ0よりも所定温度低下すると圧縮機９１を停止させる点で異なる。すなわち、上記ヒートポンプ回路の第１熱交換器９３による冷却能力を制限しつつ、冷房よりも優先して脱臭を行うのである。
【００８５】
このように、上記第５実施形態の加湿機能を有する空気調和機では、第１熱交換器９３により室内の空気を加熱および冷却することにより暖房運転および冷房運転を行うと共に、熱効率のよいヒートポンプ回路の第２熱交換器９４により加熱された温水を疎水性多孔モジュール１に供給して加湿を行うので、消費電力を低減することができる。
【００８６】
また、上記ヒートポンプ回路の第２熱交換器９４は、加熱機能に加えて冷却機能を有するので、熱効率のよいヒートポンプ回路で冷却された水を利用して、省エネルギー効果の高い優れた脱臭機能を備えることができる。
【００８７】
また、上記ヒートポンプ回路の第２熱交換器９４を貯水タンク８２内に配置することによって、貯水タンク８２内の水を効率よく加熱または冷却することができる。
【００８８】
また、上記第１熱交換器９３を疎水性多孔モジュール８１の風上側に配置することによって、第１熱交換器９３を介して加熱または冷却された室内空気を疎水性多孔モジュール８１に供給できるので、疎水性多孔モジュール８１による加湿または脱臭の効率が向上する。
【００８９】
また、上記貯水タンク８２内の水を疎水性多孔モジュール８１の円筒８１a内の流路を介してポンプ８３により循環させることによって、第２熱交換器９４により温度調節された水を疎水性多孔モジュール８１に連続的に供給することができる。また、脱臭時に貯水タンク２内の水を多孔モジュール１の流路を介して循環させることによって、多孔モジュール１内の水に吸収された臭い成分の濃度上昇を抑えることができる。
【００９０】
また、上記貯水タンク８２内の水を排水手段(排水配管Ｌ54,排水用電磁弁８６)により排出した後に貯水タンク８２内に給水手段(給水配管Ｌ53,給水用電磁弁８５)により水を供給することによって、加湿運転により硬質成分の濃度が高くなりすぎてスケールが発生しないように、貯水タンク８２内の水を入れ換えることができる一方、脱臭運転により臭い成分の濃度が高くなりすぎて脱臭能力が低下しないように、貯水タンク８２内の水を入れ換えることができる。
【００９１】
（第６実施形態）
図９はこの発明の第６実施形態の加湿機能を有する空気調和機の概略構成図であり、第１,第２熱交換器間の膨張弁および制御部の動作を除き第５実施形態の加湿機能を有する空気調和機と同一の構成をしており、同一構成部は同一参照番号を付して説明を省略する。
【００９２】
この第６実施形態の加湿機能を有する空気調和機は、第５実施形態の加湿機能を有する空気調和機と同様の効果を有すると共に、図９に示すように、第１熱交換器９３と第２熱交換器９４との間に第２膨張弁１１０を配設することによって、暖房運転モードに新たに暖房と脱臭を行う暖房脱臭複合運転が可能となる一方、冷房運転モードに新たに冷房と加湿を行う冷房加湿複合運転が可能となる。
【００９３】
(３-１) 暖房脱臭複合運転
暖房脱臭複合運転では、ヒートポンプ回路の第１膨張弁９５を全開にし、第２膨張弁１１０を所定開度に絞り、四路切換弁９２を実線の位置に切り換えて、圧縮機９１を運転すると、圧縮機９１から吐出された冷媒は、凝縮器としての第１熱交換器９３で凝縮された後、第２膨張弁１００により減圧される。そして、減圧された冷媒は、蒸発器としての第２熱交換器９４および第３熱交換器９６で蒸発した後、アキュムレータ９７を介して圧縮機９１の吸込側に戻る。そうして、ファン８４からの室内の空気を第１熱交換器９３により温め、その温風を疎水性多孔モジュール８１を介して室内に吹き出す。また、上記第２熱交換器９４により貯水タンク８２内の水を冷却すると共に、ポンプ８３を動作させて、貯水タンク８２内の冷水を配管Ｌ51を介して疎水性多孔モジュール８１に供給する。上記疎水性多孔モジュール８１に供給された冷水は、複数の円筒８１a内の流路を通って配管Ｌ52を介して貯水タンク８２に戻り、冷水が循環する。
【００９４】
このとき、上記疎水性多孔モジュール８１では、ファン８４から供給された空気の臭い成分(またはガス成分)が、円筒８１aの疎水性多孔膜を通って円筒８１a内の冷水に吸収されて脱臭が行われる。
【００９５】
(３-２) 冷房加湿複合運転
冷房加湿複合運転では、ヒートポンプ回路の第１膨張弁９５を全開にし、第２膨張弁１１０を所定開度に絞り、四路切換弁９２を点線の位置に切り換えて、圧縮機９１を運転すると、圧縮機９１から吐出された冷媒は、凝縮器としての第３熱交換器９６および第２熱交換器９４で凝縮された後、第２膨張弁１１０により減圧される。そして、減圧された冷媒は、蒸発器としての第１熱交換器９３で蒸発した後、アキュムレータ９７を介して圧縮機９１の吸込側に戻る。そうして、ファン８４からの室内の空気を第１熱交換器９３により冷やして、その冷風を疎水性多孔モジュール８１を介して室内に吹き出す。また、上記第２熱交換器９４により貯水タンク８２内の水を加熱すると共に、ポンプ８３を動作させて、貯水タンク８２内の温水を配管Ｌ51を介して疎水性多孔モジュール８１に供給する。上記疎水性多孔モジュール８１に供給された温水は、複数の円筒８１a内の流路を通って配管Ｌ52を介して貯水タンク８２に戻り、温水が循環する。
【００９６】
このとき、上記疎水性多孔モジュール８１の円筒８１a内の温水から疎水性多孔膜を通って、ファン８４から供給された空気に水蒸気が放出されて加湿が行われる。なお、上記疎水性多孔モジュール８１では、ファン８４から供給された空気の臭い成分(またはガス成分)が、円筒８１aの疎水性多孔膜を通って円筒８１a内の温水に吸収されて脱臭も少し行われる。
【００９７】
（第７実施形態）
図１０はこの発明の第７実施形態の加湿機能を有する空気調和機の概略構成図であり、バイパス手段および制御部の動作を除き第５実施形態の加湿機能を有する空気調和機と同一の構成をしており、同一構成部は同一参照番号を付して説明を省略する。
【００９８】
図１０に示すように、第１熱交換器９３の両端にバイパス配管Ｌ61を接続し、そのバイパス配管Ｌ61に第１バイパス用電磁弁１１１を配設すると共に、第１熱交換器９３の圧縮機９１側に第２バイパス用電磁弁１１２を配設している。一方、第２熱交換器９４の両端にバイパス配管Ｌ62を接続し、そのバイパス配管Ｌ62に第１バイパス用電磁弁１１３を配設すると共に、第２熱交換器９４の第３熱交換器９５側に第２電磁弁１１４を配設している。上記第１,第２バイパス用電磁弁１１１,１１２およびバイパス配管Ｌ61でバイパス手段を構成すると共に、第１,第２バイパス用電磁弁１１３,１１４およびバイパス配管Ｌ62でバイパス手段を構成している。
【００９９】
上記構成の加湿機能を有する空気調和機では、第１バイパス用電磁弁１１１,第２電磁弁１１４を閉じ、第２バイパス用電磁弁１１２,第１バイパス用電磁弁１１３を開いて、第２熱交換器９４をバイパスすることによって、暖房単独運転および冷房単独運転において第２熱交換器９４による加熱および冷却がなく、効率が向上する。また、上記第１バイパス用電磁弁１１１,第２電磁弁１１４を開き、第２バイパス用電磁弁１１２,第１バイパス用電磁弁１１３を閉じて、第１熱交換器９３をバイパスすることによって、加湿単独運転および脱臭単独運転において第１熱交換器９３による加熱および冷却がなく、効率が向上する。
【０１００】
図１１〜図１５は上記制御部８８の運転処理を示すフローチャートであり、図１１〜図１５にしたがって制御部８８の動作を説明する。なお、図１１〜図１５では、運転モードが冷房のときについて説明し、運転モードが暖房のときについては、冷房運転モードとほぼ同様の動作であるので説明を省略する。
【０１０１】
まず、処理がスタートすると、ステップＳ１でリモコン８７の操作の読み込みを行う。すなわち、リモコン８７で使用者が設定した運転操作内容(運転モードや要求室内温度ｔ0,要求相対湿度ＲＨ0,要求臭濃度Ｎ0および排水間隔等)を制御部８８が読み込む。
次に、ステップＳ２に進み、運転モードが暖房か冷房かを判別して、運転モードが冷房であるときは、ステップＳ３に進む一方、運転モードが暖房であるときは暖房運転処理に進む。
次に、ステップＳ３で運転モードが単独か複合かを判別して、運転モードが単独であるときは、ステップＳ４に進み、冷房／加湿／脱臭のいずれの単独運転であるか判別する。そして、ステップＳ４で冷房の単独運転であると判別すると、ステップＳ５に進む一方、加湿の単独運転であると判別すると、図１２のステップＳ１１に進み、脱臭の単独運転であると判別すると、図１３のステップＳ２１に進む。
また、ステップＳ３で運転モードが複合であるときは、ステップＳ１０に進み、運転モードが冷房加湿／冷房脱臭のいずれであるか判別して、運転モードが冷房加湿の複合運転であるときは、図１４のステップＳ３１に進む一方、運転モードが冷房脱臭の複合運転であるときは、図１５のステップＳ４１に進む。
【０１０２】
[冷房単独運転]
冷房単独運転では、ステップＳ５でリモコン８７側の室内温度センサ１０３により検出された室内温度ｔ1の読み込みを行う。
次に、ステップＳ６に進み、室内温度ｔ1と目標室内温度ｔ0との室内温度差△ｔ(＝ｔ1−ｔ0)を求める。
次に、ステップＳ７に進み、上記室内温度差△ｔが小さくなるように、運転周波数ＨＺを決定する。
そして、ステップＳ８に進み、冷房運転制御を行う。この冷房運転制御では、第１バイパス用電磁弁１１１,第２電磁弁１１４を閉じ、第２バイパス用電磁弁１１２,第１バイパス用電磁弁１１３を開いて、第２熱交換器９４をバイパスする。そして、四路切換弁９２を点線の位置に切り換えて、圧縮機９１を運転すると、圧縮機９１から吐出された冷媒は、凝縮器としての第３熱交換器９６で凝縮された後、第１膨張弁９５により減圧される。減圧された冷媒は、蒸発器としての第１熱交換器９３のみで蒸発した後、アキュムレータ９７を介して圧縮機９１の吸込側に戻る。そうして、ファン１３からの室内空気を第１熱交換器９３により冷やし、その冷風を９室内に吹き出して冷房を行う。
次に、ステップＳ９に進み、室内温度差△ｔが正の値であると判断すると、ステップＳ５に戻り、ステップＳ５〜Ｓ８を繰り返す。一方、ステップＳ９で室内温度差△ｔがゼロ以下であると判断すると、この処理を終了する。
【０１０３】
[加湿単独運転]
加湿単独運転では、図１２に示すステップＳ１１でリモコン８７側の湿度センサ１０３により検出された室内相対湿度ＲＨ1の読み込みを行う。
次に、ステップＳ１２に進み、温度センサ１０４により検出された疎水性多孔モジュール８１の水温Ｔ1の読み込みを行う。
次に、ステップＳ１３に進み、室内相対湿度ＲＨ1と要求相対湿度ＲＨ0との相対湿度差△ＲＨ(＝ＲＨ1−ＲＨ0)を求める。
次に、ステップＳ１４に進み、相対湿度差△ＲＨに基づいて目標加熱水温Ｔ0hを決定し、疎水性多孔モジュール１の水温Ｔ1と目標加熱水温Ｔ0hとの温度差△Ｔ(＝Ｔ1−Ｔ0h)を求める。
次に、ステップＳ１５に進み、上記温度差△Ｔが小さくなるように、運転周波数ＨＺを決定する。
そして、ステップＳ１６に進み、加湿運転制御を行う。この加湿運転制御では、第１バイパス用電磁弁１１１,第２電磁弁１１４を開き、第２バイパス用電磁弁１１２,第１バイパス用電磁弁１１３を閉じて、第１熱交換器９３をバイパスする。そして、四路切換弁９２を実線の位置に切り換えて、圧縮機９１を運転すると、圧縮機９１から吐出された冷媒は、凝縮器としての第２熱交換器９４のみで凝縮された後、第１膨張弁９５により減圧される。減圧された冷媒は、蒸発器としての第３熱交換器９６で蒸発した後、アキュムレータ９７を介して圧縮機９１の吸込側に戻る。そうして、ファン８４からの室内の空気を疎水性多孔モジュール８１を介して室内に吹き出し、このとき、疎水性多孔モジュール８１では、円筒８１a内を通過する温水から円筒８１aの疎水性多孔膜を通って、ファン８４から第１熱交換器９３を介して供給された空気に水蒸気が放出されて加湿が行われる。
次に、ステップＳ１７に進み、相対湿度差△ＲＨがゼロ以下であると判断すると、ステップＳ１１に戻り、ステップＳ１１〜Ｓ１７を繰り返す。一方、ステップＳ１７で相対湿度差△ＲＨが正の値であると判断すると、この処理を終了する。
【０１０４】
[脱臭単独運転]
脱臭単独運転では、図１３に示すステップＳ２１でリモコン８７側の臭いセンサ１０２により検出された室内臭濃度Ｎ1の読み込みを行う。
次に、ステップＳ２２に進み、温度センサ１０４により検出された疎水性多孔モジュール８１の水温Ｔ1の読み込みを行う。
次に、ステップＳ２３に進み、室内臭濃度Ｎ1と要求臭濃度Ｎ0との臭濃度差△Ｎ(＝Ｎ1−Ｎ0)を求める。
次に、ステップＳ２４に進み、臭濃度差△Ｎに基づいて目標冷却水温Ｔ0cを決定し、疎水性多孔モジュール１の水温Ｔ1と目標冷却水温Ｔ0cとの温度差△Ｔ(＝Ｔ1−Ｔ0c)を求める。
次に、ステップＳ２５に進み、上記温度差△Ｔが小さくなるように、運転周波数ＨＺを決定する。
そして、ステップＳ２６に進み、脱臭運転制御を行う。この脱臭運転制御では、第１バイパス用電磁弁１１１,第２電磁弁１１４を開き、第２バイパス用電磁弁１１２,第１バイパス用電磁弁１１３を閉じて、第１熱交換器９３をバイパスする。そして、四路切換弁９２を点線の位置に切り換えて、圧縮機９１を運転すると、圧縮機９１から吐出された冷媒は、凝縮器としての第３熱交換器９６で凝縮された後、第１膨張弁９５により減圧される。減圧された冷媒は、蒸発器としての第２熱交換器９４のみで蒸発した後、アキュムレータ９７を介して圧縮機９１の吸込側に戻る。そうして、ファン８４からの室内の空気を疎水性多孔モジュール８１を介して室内に吹き出し、このとき、疎水性多孔モジュール８１では、ファン８４から供給された空気の臭い成分(またはガス成分)が、円筒８１aの疎水性多孔膜を通って円筒８１a内の冷水に吸収されて脱臭が行われる。
次に、ステップＳ２７に進み、臭濃度差△Ｎが正の値であると判断すると、ステップＳ２１に戻り、ステップＳ２１〜Ｓ２７を繰り返す。一方、ステップＳ２７で臭濃度差△Ｎがゼロ以下であると判断すると、この処理を終了する。
【０１０５】
[冷房加湿複合運転]
冷房加湿複合運転では、まず、図１４に示すステップＳ３１でリモコン８７側の室内温度センサ１０３により検出された室内温度ｔ1の読み込みを行う。
次に、ステップＳ３２に進み、リモコン８７側の湿度センサ１０３により検出された室内相対湿度ＲＨ1の読み込みを行う。
次に、ステップＳ３３に進み、温度センサ１０４により検出された疎水性多孔モジュール８１の水温Ｔ1の読み込みを行う。
次に、ステップＳ３４に進み、室内温度ｔ1と要求室内温度ｔ0との室内温度差△ｔ(＝ｔ1−ｔ0)を求めると共に、室内相対湿度ＲＨ1と要求相対湿度ＲＨ0との相対湿度差△ＲＨ(＝ＲＨ1−ＲＨ0)を求める。
次に、ステップＳ３５に進み、相対湿度差△ＲＨに基づいて目標加熱水温Ｔ0hを決定し、疎水性多孔モジュール１の水温Ｔ1と目標加熱水温Ｔ0hとの温度差△Ｔを求める。
次に、ステップＳ３６に進み、上記温度差△Ｔが小さくなるように、運転周波数ＨＺを決定する。
そして、ステップＳ３７に進み、冷房加湿複合運転制御を行う。この冷房加湿複合運転制御では、第１バイパス用電磁弁１１１,１１３を閉じ、第２バイパス用電磁弁１１２,１１４を開いた状態で、第６実施形態の「(３-２)冷房加湿複合運転」と同様の動作を行う。
次に、ステップＳ３８に進み、室内温度差△ｔが正の値であるかまたは相対湿度差△ＲＨがゼロ以下であると判断すると、ステップＳ３１に戻り、ステップＳ３１〜Ｓ３８を繰り返す。一方、ステップＳ３８で室内温度差△ｔがゼロ以下でかつ相対湿度差△ＲＨが正の値であると判断すると、この処理を終了する。
【０１０６】
[冷房脱臭複合運転]
冷房脱臭複合運転では、図１５に示すステップＳ４１でリモコン８７側の室内温度センサ１０３により検出された室内温度ｔ1の読み込みを行う。
次に、ステップＳ４２に進み、リモコン８７側の臭いセンサ１０２により検出された室内臭濃度Ｎ1の読み込みを行う。
次に、ステップＳ４３に進み、温度センサ１０４により検出された疎水性多孔モジュール８１の水温Ｔ1の読み込みを行う。
次に、ステップＳ４４に進み、室内温度ｔ1と要求室内温度ｔ0との室内温度差△ｔ(＝ｔ1−ｔ0)を求めると共に、室内臭濃度Ｎ1と要求臭濃度Ｎ0との臭濃度差△Ｎ(＝Ｎ1−Ｎ0)を求める。
次に、ステップＳ４５に進み、臭濃度差△Ｎに基づいて目標冷却水温Ｔ0cを決定し、疎水性多孔モジュール１の水温Ｔ1と目標冷却水温Ｔ0cとの温度差△Ｔを求める。
次に、ステップＳ４６に進み、上記温度差△Ｔが小さくなるように、運転周波数ＨＺを決定する。
そして、ステップＳ４７に進み、冷房脱臭複合運転制御を行う。この冷房脱臭複合運転制御では、第１バイパス用電磁弁１１１,１１３を閉じ、第２バイパス用電磁弁１１２,１１４を開いた状態で、第５実施形態の「(２-１) 冷房脱臭複合運転」と同様の動作を行う。
次に、ステップＳ４８に進み、室内温度差△ｔが正の値であるかまたは臭濃度差△Ｎが正の値であると判断すると、ステップＳ４１に戻り、ステップＳ４１〜Ｓ４８を繰り返す。一方、ステップＳ４８で室内温度差△ｔがゼロ以下でかつ臭濃度差△Ｎがゼロ以下であると判断すると、この処理を終了する。
【０１０７】
上記第１〜第７実施形態では、複数の円筒とその円筒の両端を接続するヘッダを有する疎水性多孔モジュール１(２１,４１,６１,８１)を用いた加湿機能を有する空気調和機について説明したが、多孔モジュールの構成はこれに限らず、貯水タンク内の水が供給される空間が疎水性多孔膜により形成された多孔モジュールであればよい。
【０１０８】
また、上記第１〜第７実施形態では、ヒートポンプ回路の加熱機能と冷却機能を切り換えて加湿運転と脱臭運転を行ったが、ヒートポンプ回路の加熱能力を利用する加湿運転のみを行う加湿機能を有する空気調和機にこの発明を適用してもよい。
【０１０９】
【発明の効果】
以上より明らかなように、請求項１の発明の加湿機能を有する空気調和機は、貯水タンクと、上記貯水タンク内の水が供給される空間が疎水性多孔膜により形成された多孔モジュールと、上記多孔モジュールに供給される室内の空気を加熱する第１熱交換器と、上記多孔モジュールに供給される水または上記多孔モジュール内の水を加熱する第２熱交換器とを有するヒートポンプ回路とを備えたものであり、上記ヒートポンプ回路の第１熱交換器および第２熱交換器が加熱機能に加えて冷却機能を有するものである。
【０１１０】
したがって、請求項１の発明の加湿機能を有する空気調和機によれば、上記第１熱交換器で温められた空気を多孔モジュールを介して室内に吹き出すことによって暖房を行うと共に、第２熱交換器により加熱された温水から多孔モジュールの疎水性多孔膜を通って空気中に水蒸気を放出して加湿を行うことが可能となるので、熱効率のよいヒートポンプ回路を用いることにより消費電力を低減できる加湿機能を有する空気調和機を実現することができる。
【０１１１】
また、熱効率のよいヒートポンプ回路で冷却された水を利用することによって、省エネルギー効果の高い優れた脱臭機能を備えことができる。
【０１１２】
また、請求項２の発明の加湿機能を有する空気調和機は、請求項１の加湿機能を有する空気調和機において、上記ヒートポンプ回路の第２熱交換器を貯水タンク内に配置するので、貯水タンク内の水を効率よく加熱できると共に、上ヒートポンプ回路の第２熱交換器が冷却機能を有する場合は、貯水タンク内の水を効率よく冷却することができる。
【０１１３】
また、請求項３の発明の加湿機能を有する空気調和機は、請求項１の加湿機能を有する空気調和機において、上記ヒートポンプ回路の第２熱交換器を多孔モジュールに設けられた貯水空間に配置するので、貯水タンク内に第２熱交換器を配置するよりも第１,第２熱交換器に接続される配管の長さを短くでき、構造を簡略化してコストを低減することができる。また、ポンプ,配管等による熱損失がなく、多孔モジュールの貯水空間内の水を直接加熱するので、効率がさらに向上し、ヒートポンプ回路の第２熱交換器が冷却機能を有する場合も、多孔モジュールの空間内の水を直接冷却するので、効率が向上する。
【０１１４】
また、請求項４の発明の加湿機能を有する空気調和機は、請求項１の加湿機能を有する空気調和機において、上記ヒートポンプ回路の第２熱交換器として、貯水タンクと多孔モジュールとの間の配管に配置された２重管熱交換器を用いることによって、貯水タンクの外部に第２熱交換器を配置することが可能となり、構造を簡略化してコストを低減することができる。
【０１１５】
また、請求項５の発明の加湿機能を有する空気調和機は、請求項１の加湿機能を有する空気調和機において、上記多孔モジュールの疎水性多孔膜により形成された空間にヒートポンプ回路の第２熱交換器を配置することによって、貯水タンク内に第２熱交換器を配置するよりもポンプおよびポンプ接続配管を除去でき、構造を簡略化してコストを低減できる。また、ポンプ,配管等による熱損失がなく、多孔モジュールの疎水性多孔膜により形成された空間内の水を直接加熱するので、温水温度と凝縮温度との差が小さくできるために効率がさらに向上し、ヒートポンプ回路の第２熱交換器が冷却機能を有する場合も、多孔モジュールの空間内の水を直接冷却するので、効率が向上する。
【０１１６】
また、請求項６の発明の加湿機能を有する空気調和機は、請求項１乃至５のいずれか１つの加湿機能を有する空気調和機において、上記多孔モジュールに室内の空気を供給するファンを備え、上記多孔モジュールの風上側に上記第１熱交換器を配置することによって、第１熱交換器により加熱または冷却された室内空気を多孔モジュールに供給するので、多孔モジュールによる加湿または脱臭の効率が向上する。
【０１１７】
また、請求項７の発明の加湿機能を有する空気調和機は、請求項１乃至６のいずれか１つの加湿機能を有する空気調和機において、上記貯水タンク内の水を多孔モジュールの流路を介してポンプにより循環させることによって、貯水タンク内の水を多孔モジュールに連続的に供給することができ、脱臭時は多孔モジュール内の水に吸収された臭い成分の濃度上昇を抑えることができる。
【０１１８】
また、請求項８の発明の加湿機能を有する空気調和機は、請求項１乃至７のいずれか１つの加湿機能を有する空気調和機において、上記貯水タンク内に水を供給する給水手段と、上記貯水タンク内の水を排出する排水手段とを用いることによって、水を入れ換えることが可能となり、加湿運転により硬質成分の濃度が高くなりすぎてスケールが発生しないようにできると共に、ヒートポンプ回路の第２熱交換器が冷却機能を有する場合は、脱臭運転により臭い成分の濃度が高くなりすぎて脱臭能力が低下しないようにできる。
【０１１９】
また、請求項９の発明の加湿機能を有する空気調和機は、請求項１の加湿機能を有する空気調和機において、少なくとも圧縮機,四路切換弁,第１熱交換器,第２の熱交換器,減圧手段,第３熱交換器で形成された冷媒回路であるヒートポンプ回路によって、多孔モジュールに供給される水(または多孔モジュール内の水)を加熱および冷却することができる。
【０１２０】
また、請求項１０の発明の加湿機能を有する空気調和機は、請求項９の加湿機能を有する空気調和機において、上記減圧手段である第１膨張弁を全開にして、上記第１熱交換器と第２熱交換器との間に配設された第２膨張弁の開度を絞ることによって、第１熱交換器を凝縮器とし、第２熱交換器,第３熱交換器を蒸発器として、第１熱交換器により室内空気を加熱して暖房を行うと共に、第２熱交換器により多孔モジュールに供給される水(または多孔モジュール内の水)を冷却して脱臭を行うことが可能となる。また、第２熱交換器,第３熱交換器を凝縮器とし、第１熱交換器を蒸発器として、第１熱交換器により室内空気を冷却して冷房を行うと共に、第２熱交換器により多孔モジュールに供給される水(または多孔モジュール内の水)を加熱して加湿を行うことが可能となる。
【０１２１】
また、請求項１１の発明の加湿機能を有する空気調和機は、請求項９の加湿機能を有する空気調和機において、上記第１熱交換器の両端をバイパス手段によりバイパスすることによって、第１熱交換器を使用せず、第２熱交換器を凝縮器とし、第３熱交換器を蒸発器として、第２熱交換器により多孔モジュールに供給される水(または多孔モジュール内の水)を加熱して加湿のみを行うと共に、第１熱交換器を使用せず、第３熱交換器を凝縮器とし、第２熱交換器を蒸発器として、第２熱交換器により多孔モジュールに供給される水(または多孔モジュール内の水)を冷却して脱臭のみを行うことができ、第１熱交換器による熱ロスがなく、効率が向上する。
【０１２２】
また、請求項１２の発明の加湿機能を有する空気調和機は、請求項１１の加湿機能を有する空気調和機において、上記バイパス配管に配設された第１バイパス用電磁弁を開くと共に、上記第２バイパス用電磁弁を閉じて第１熱交換器の冷媒の流れを止めることにより、第１熱交換器をバイパスする一方、上記第１熱交換器をバイパスしないときは、第１バイパス用電磁弁を閉じ、第２バイパス用電磁弁を開く。したがって、簡単な構成により第１熱交換器をバイパスして冷媒が流れない不使用状態できる。
【０１２３】
また、請求項１３の発明の加湿機能を有する空気調和機は、請求項９の加湿機能を有する空気調和機において、上記第２熱交換器の両端をバイパス手段によりバイパスすることによって、第２熱交換器を使用せず、第１熱交換器を凝縮器とし、第３熱交換器を蒸発器として、第１熱交換器により室内空気を加熱して暖房のみを行うと共に、第２熱交換器を使用せず、第３熱交換器を凝縮器とし、第１熱交換器を蒸発器として、第１熱交換器により室内空気を冷却して冷房のみを行うことができ、第２熱交換器による熱ロスがなく、効率が向上する。
【０１２４】
また、請求項１４の発明の加湿機能を有する空気調和機は、請求項１３の加湿機能を有する空気調和機において、上記バイパス配管に配設された第１バイパス用電磁弁を開くと共に、上記第２バイパス用電磁弁を閉じて第２熱交換器の冷媒の流れを止めることにより、第２熱交換器をバイパスする一方、上記第２熱交換器をバイパスしないときは、第１バイパス用電磁弁を閉じ、第２バイパス用電磁弁を開く。したがって、簡単な構成により第２熱交換器をバイパスして冷媒が流れない不使用状態できる。
【０１２５】
また、請求項１５の発明の加湿機能を有する空気調和機は、請求項９の加湿機能を有する空気調和機において、ヒートポンプ回路の圧縮機,四路切換弁,第１膨張弁,第２膨張弁を制御部により制御することによって、上記貯水タンク内の水を多孔モジュールに供給せずに、上記ヒートポンプ回路の第１熱交換器によって室内の空気を冷却して冷房する冷房単独運転と、ヒートポンプ回路の第２熱交換器によって多孔モジュールに供給される水(または多孔モジュール内の水)を冷却して脱臭すると共に、ヒートポンプ回路の第１熱交換器によって室内の空気を冷却して冷房する冷房脱臭複合運転と、ヒートポンプ回路の第２熱交換器によって多孔モジュールに供給される水(または多孔モジュール内の水)を冷却すると共に、ヒートポンプ回路の第１熱交換器による冷却能力を制限しつつ、冷房よりも優先して脱臭する脱臭優先運転とを行う加湿機能を有する空気調和機を実現することができる。
【０１２６】
また、請求項１６の発明の加湿機能を有する空気調和機は、請求項９の加湿機能を有する空気調和機において、ヒートポンプ回路の圧縮機,四路切換弁,第１膨張弁,第２膨張弁を制御部により制御することによって、上記貯水タンク内の水を多孔モジュールに供給せずに、上記ヒートポンプ回路の第１熱交換器によって室内の空気を加熱して暖房する暖房単独運転と、ヒートポンプ回路の第２熱交換器によって多孔モジュールに供給される水(または多孔モジュール内の水)を加湿すると共に、ヒートポンプ回路の第１熱交換器によって室内の空気を加熱して暖房する暖房加湿複合運転と、ヒートポンプ回路の第２熱交換器によって多孔モジュールに供給される水(または多孔モジュール内の水)を冷却して脱臭する脱臭単独運転とを行う加湿機能を有する空気調和機を実現することができる。
【図面の簡単な説明】
【図１】 図１はこの発明の第１実施形態の加湿機能を有する空気調和機の概略構成図である。
【図２】 図２はこの発明の第２実施形態の加湿機能を有する空気調和機の概略構成図である。
【図３】 図３はこの発明の第３実施形態の加湿機能を有する空気調和機の概略構成図である。
【図４】 図４はこの発明の第４実施形態の加湿機能を有する空気調和機の概略構成図である。
【図５】 図５は上記加湿機能を有する空気調和機の疎水性多孔モジュールの要部を上方から見た図である。
【図６】 図６は上記疎水性多孔モジュール内に第２熱交換器の伝熱管が配置された状態を示す斜視図である。
【図７】 図７は上記第２熱交換器の伝熱管に金属シートを帯状に巻いた状態を示す図である。
【図８】 図８はこの発明の第５実施形態の加湿機能を有する空気調和機の概略構成図である。
【図９】 図９はこの発明の第６実施形態の加湿機能を有する空気調和機の概略構成図である。
【図１０】 図１０はこの発明の第７実施形態の加湿機能を有する空気調和機の概略構成図である。
【図１１】 図１１は上記加湿機能を有する空気調和機の動作を説明するフローチャートである。
【図１２】 図１２は図１１に続く加湿単独運転の動作を説明するフローチャートである。
【図１３】 図１３は図１１に続く脱臭単独運転の動作を説明するフローチャートである。
【図１４】 図１４は図１１に続く冷房加湿複合運転の動作を説明するフローチャートである。
【図１５】 図１５は図１１に続く冷房脱臭複合運転の動作を説明するフローチャートである。
【図１６】 図１６は温度変化に対するヘンリー定数の特性を示す図である。
【符号の説明】
１,２１,４１,６１,８１…疎水性多孔モジュール、
２,２２,４２,６２,８２…貯水タンク、
３,４３,８３…ポンプ、
４,２４,４４,６４,８４…ファン、
５,２５,４５,６５…フロートスイッチ、
６,２６,４６,６６,８６…排水用電磁弁、
１１,３１,５１,７１,９１…圧縮機、
１２,３２,５２,７２,９２…四路切換弁、
１３,３３,５３,７３,９３…第１熱交換器、
１４,３４,５４,７４,９４…第２熱交換器、
１５,３５,５５,７５…膨張弁、
１６,３６,５６,７６,９６…第３熱交換器、
１７,３７,５７,７７,９７…アキュムレータ、
１８,３８,５８,７８,９８…ファン、
８５…排水用電磁弁、
８７…リモコン、
８８…制御部、
９５…第１膨張弁、
１００…水位センサ、
１０１…湿度センサ、
１０２…臭いセンサ、
１０３…室内温度センサ、
１０４…温度センサ、
１１０…第２膨張弁、
１１１〜１１４…電磁弁、
Ｌ1,Ｌ2,Ｌ11,Ｌ31,Ｌ32,Ｌ41,Ｌ51,Ｌ52…配管、
Ｌ3,Ｌ13,Ｌ33,Ｌ43,Ｌ53…給水配管、
Ｌ4,Ｌ12,Ｌ34,Ｌ42,Ｌ54…排水配管、
Ｌ61,Ｌ62…バイパス配管。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an air conditioner having a humidifying function using a porous module formed of a hydrophobic porous membrane.
[0002]
[Background Art and Problems to be Solved by the Invention]
Conventionally, there is a humidifier that performs humidification using a porous module formed of a hydrophobic porous membrane (Japanese Patent Laid-Open No. 11-351731). In this humidifier, the amount of humidification per unit area of the hydrophobic porous membrane of the porous module is increased by heating the water stored in the tank with an electric heater to raise the water supply temperature. However, the humidifying device raises the feed water temperature using an electric heater, so that if the amount of humidification increases, the power consumption of the electric heater increases, so there is a disadvantage that the efficiency is poor. Moreover, since the said humidifier is the heating by an electric heater, the water stored in the tank cannot be cooled and the deodorizing function using cold water cannot be added. Therefore, even if such a humidifier is used in an air conditioner that performs cooling and heating, a low power consumption air conditioner having a humidifying function cannot be realized, and a deodorizing function using cold water cannot be provided.
[0003]
Therefore, an object of the present invention is to provide an air conditioner that can reduce power consumption and has a humidifying function with an excellent deodorizing function.
[0004]
[Means for Solving the Problems]
In order to achieve the above object, an air conditioner having a humidifying function according to claim 1 includes a water storage tank, a porous module in which a space to which water is supplied in the water storage tank is formed by a hydrophobic porous film, A heat pump circuit comprising: a first heat exchanger that heats or cools air; and a second heat exchanger that heats water supplied to the porous module or water in the porous module. In the air conditioner having a humidifying function, the second heat exchanger of the heat pump circuit has a cooling function in addition to the heating function. It is characterized by that.
[0005]
According to the air conditioner having the humidifying function of claim 1, the indoor air is heated or cooled by the first heat exchanger of the heat pump circuit to perform heating or cooling, and by the second heat exchanger of the heat pump circuit. Water supplied to the porous module (or water in the porous module) is heated. By doing so, it becomes possible to efficiently release moisture from the porous module through the hydrophobic porous membrane into the air and perform humidification. Therefore, compared with supplying hot water heated using an electric heater to the porous module, a heat pump circuit with higher thermal efficiency is used, so that power consumption can be reduced. The air conditioner having the humidifying function may have both a heating function and a cooling function, or may have only one of the heating function and the cooling function.
[0006]
[0007]
Also The indoor air is cooled by the first heat exchanger of the heat pump circuit, the cold air is supplied to the porous module, and the water supplied to the porous module (or the water in the porous module) is exchanged by the second heat of the heat pump circuit. Cool with a vessel. In the porous module, odorous components are absorbed from the air through the hydrophobic porous membrane into the cold water in the space formed by the hydrophobic porous membrane. Since the amount of absorption of this odorous component into the water increases as the water temperature decreases, it is possible to perform efficient deodorization by using cold water, while the lower the water temperature, the lower the water vapor partial pressure and air in the cold water side. The pressure difference from the water vapor partial pressure is reduced, making it difficult for water vapor to be released into the air, and the humidification performance is reduced. Therefore, an air conditioner having a humidifying function having an excellent deodorizing function with a high energy saving effect can be realized by using water cooled by a heat pump circuit having high thermal efficiency. In particular, it is possible to provide a deodorizing function in place of the humidifying function without adding other components in the season when humidification is not required. When the second heat exchanger is used for cooling, the first heat exchanger may be used for heating, or the first heat exchanger may be used for cooling.
[0008]
Claims 2 An air conditioner having a humidifying function of claim 1's An air conditioner having a humidifying function is characterized in that the second heat exchanger of the heat pump circuit is disposed in the water storage tank.
[0009]
Claims above 2 According to the air conditioner having the humidifying function, the water in the water storage tank can be efficiently heated by disposing the second heat exchanger of the heat pump circuit in the water storage tank. Moreover, when the 2nd heat exchanger of the said heat pump circuit has a cooling function, the water in a water storage tank can be efficiently cooled by arrange | positioning a 2nd heat exchanger in a water storage tank.
[0010]
Claims 3 An air conditioner having a humidifying function of claim 1's In the air conditioner having a humidifying function, the second heat exchanger of the heat pump circuit is arranged in a water storage space provided in the porous module.
[0011]
Claims above 3 According to the air conditioner having the humidifying function, by arranging the second heat exchanger of the heat pump circuit in the water storage space provided in the porous module, there is no heat loss due to the pump, piping, etc., and the space of the porous module Since the water inside is directly heated, the efficiency is further improved. Moreover, also when the 2nd heat exchanger of the said heat pump circuit has a cooling function, since the water in the space of a porous module is directly cooled, efficiency improves.
[0012]
Claims 4 An air conditioner having a humidifying function of claim 1's In the air conditioner having a humidifying function, the second heat exchanger of the heat pump circuit is a double pipe heat exchanger arranged in a pipe between the water storage tank and the porous module. .
[0013]
Claims above 4 According to the air conditioner having the humidifying function, a double tank heat exchanger disposed in a pipe between the water tank and the porous module is used as the second heat exchanger of the heat pump circuit. It becomes possible to arrange | position a 2nd heat exchanger outside, and can simplify a structure and can reduce cost.
[0014]
Claims 5 An air conditioner having a humidifying function of claim 1's In the air conditioner having a humidifying function, the second heat exchanger of the heat pump circuit is disposed in a space formed by the hydrophobic porous film of the porous module.
[0015]
Claims above 5 According to the air conditioner having the humidifying function, by disposing the second heat exchanger of the heat pump circuit in the space formed by the hydrophobic porous membrane of the porous module, there is no heat loss due to the pump, piping, etc. Since the water in the space of the porous module is directly heated, the efficiency is further improved. Moreover, also when the 2nd heat exchanger of the said heat pump circuit has a cooling function, since the water in the space of a porous module is directly cooled, efficiency improves.
[0016]
Claims 6 An air conditioner having a humidifying function of claim 1 to claim 1. 5 In the air conditioner having any one of the humidifying functions, a fan for supplying room air to the porous module is provided, and the first heat exchanger is arranged on the windward side of the porous module.
[0017]
Claims above 6 According to the air conditioner having the humidifying function, the first heat exchanger is arranged on the windward side of the porous module, and the indoor air is supplied to the porous module by a fan, so that the air is passed through the first heat exchanger. Since the room air heated or cooled can be supplied to the porous module, the efficiency of humidification or deodorization by the porous module is improved.
[0018]
Claims 7 An air conditioner having a humidifying function of claim 1 to claim 1. 6 The air conditioner having any one of the humidifying functions includes a pump that circulates the water in the water storage tank through the flow path of the porous module.
[0019]
Claims above 7 According to the air conditioner having the humidifying function, water can be continuously supplied to the porous module by circulating the water in the water storage tank with a pump through the flow path of the porous module during humidification. Further, when the second heat exchanger has a cooling function, the concentration of the odor component absorbed in the water in the porous module is increased by circulating the water in the water storage tank through the flow path of the porous module at the time of deodorization. Can be suppressed.
[0020]
Claims 8 An air conditioner having a humidifying function of claim 1 to claim 1. 7 The air conditioner having any one of the humidifying functions is characterized by comprising water supply means for supplying water into the water storage tank and drainage means for discharging the water in the water storage tank.
[0021]
Claims above 8 According to the air conditioner having a humidifying function, the concentration of the hard component becomes too high due to the humidification operation by supplying the water into the water storage tank by the water supply means after discharging the water in the water storage tank by the drainage means. Therefore, the water in the water storage tank can be replaced so that scale does not occur. In addition, when the second heat exchanger of the heat pump circuit has a cooling function, it is possible to replace the water in the water storage tank so that the concentration of the odor component is not increased too much due to the deodorizing operation and the deodorizing ability is not lowered. Become.
[0022]
Claims 9 An air conditioner having a humidifying function of claim 1 In the air conditioner having the humidifying function, the heat pump circuit is formed of at least a compressor, a four-way switching valve, the first heat exchanger, the second heat exchanger, a pressure reducing unit, and a third heat exchanger. It is characterized by being a refrigerant circuit.
[0023]
Claims above 9 According to the air conditioner having the humidifying function, the compressor, the first heat exchanger, the second heat exchanger, the decompression means, and the third heat exchanger are arranged with the four-way switching valve in one switching position. By circulating the refrigerant, the first and second heat exchangers are used as condensers and the third heat exchanger is used as an evaporator, so that water supplied to the porous module by heat radiation from the second heat exchanger (or The water in the porous module is heated. On the other hand, the four-way switching valve is set to the other switching position, and the compressor, the third heat exchanger, the pressure reducing means, the first and second heat exchangers and the refrigerant are circulated to condense the third heat exchanger. By using the first and second heat exchangers as evaporators, the water supplied to the porous module (or the water in the porous module) is cooled by the heat absorption of the first heat exchanger. Thus, the heat pump circuit can efficiently heat and cool water (or water in the porous module) supplied to the porous module.
[0024]
Claim 1 0 An air conditioner having a humidifying function of claim 9 In the air conditioner having the humidifying function, the decompression means is a first expansion valve, and a second expansion valve is disposed between the first heat exchanger and the second heat exchanger of the heat pump circuit. It is characterized by that.
[0025]
Claim 1 above 0 According to the air conditioner having the humidifying function, the second expansion valve disposed between the first heat exchanger and the second heat exchanger with the first expansion valve as the decompression means fully opened. The first heat exchanger is used as a condenser, the second heat exchanger and the third heat exchanger are used as an evaporator, and the room air is heated by the first heat exchanger to perform heating. The water supplied to the porous module (or the water in the porous module) by the second heat exchanger can be cooled and deodorized. In addition, the second heat exchanger and the third heat exchanger are used as condensers, the first heat exchanger is used as an evaporator, and the cooling capacity of the first heat exchanger is limited. It is possible to heat the supplied water (or water in the porous module) and perform humidification over cooling.
[0026]
Claim 1 1 An air conditioner having a humidifying function of claim 9 An air conditioner having a humidifying function is provided with bypass means for bypassing both ends of the first heat exchanger.
[0027]
Claim 1 above 1 According to the air conditioner having the humidifying function, by bypassing both ends of the first heat exchanger with the bypass means, the first heat exchanger is not used and the second heat exchanger is used as a condenser. It is possible to heat only water (or water in the porous module) supplied to the porous module by the second heat exchanger using the 3 heat exchanger as an evaporator, and to perform humidification only. There is no loss and efficiency is improved. . In addition, the first heat exchanger is not used, the third heat exchanger is a condenser, the second heat exchanger is an evaporator, and water supplied to the porous module by the second heat exchanger (or in the porous module) It is possible to perform only deodorization by cooling the water, and there is no heat loss due to the first heat exchanger, and the efficiency is improved.
[0028]
Claim 1 2 An air conditioner having a humidifying function of claim 1 is provided. 1 In the air conditioner having the humidifying function, the bypass means includes a bypass pipe connected to both sides of the first heat exchanger, a first bypass solenoid valve disposed in the bypass pipe, and the first And a second bypass solenoid valve for stopping the flow of the refrigerant in the first heat exchanger when the bypass solenoid valve is opened.
[0029]
Claim 1 above 2 According to the air conditioner having the humidifying function, the first bypass solenoid valve disposed in the bypass pipe is opened and the second bypass solenoid valve is closed to flow the refrigerant in the first heat exchanger. By bypassing, the first heat exchanger is bypassed. On the other hand, when not bypassing the first heat exchanger, the first bypass solenoid valve is closed and the second bypass solenoid valve is opened.
[0030]
Claim 1 3 An air conditioner having a humidifying function of claim 9 An air conditioner having a humidifying function is provided with bypass means for bypassing both ends of the second heat exchanger.
[0031]
Claim 1 above 3 According to the air conditioner having the humidifying function, by bypassing both ends of the second heat exchanger with the bypass means, the second heat exchanger is not used, the first heat exchanger is a condenser, Using the three heat exchangers as an evaporator, it becomes possible to heat only the room air by heating the first heat exchanger, and there is no heat loss due to the second heat exchanger, thereby improving the efficiency. Further, without using the second heat exchanger, the third heat exchanger can be a condenser, the first heat exchanger can be an evaporator, and the indoor air can be cooled by the first heat exchanger to perform only cooling. It becomes possible, there is no heat loss by the second heat exchanger, and the efficiency is improved.
[0032]
Claim 1 4 An air conditioner having a humidifying function of claim 1 is provided. 3 In the air conditioner having a humidifying function, the bypass means includes a bypass pipe connected to both sides of the second heat exchanger, a first bypass electromagnetic valve disposed in the bypass pipe, and the first And a second bypass solenoid valve for stopping the flow of the refrigerant in the second heat exchanger when the bypass solenoid valve is opened.
[0033]
Claim 1 above 4 According to the air conditioner having the humidifying function, the first bypass solenoid valve disposed in the bypass pipe is opened and the second bypass solenoid valve is closed to flow the refrigerant in the second heat exchanger. By bypassing, the second heat exchanger is bypassed. On the other hand, when not bypassing the second heat exchanger, the first bypass solenoid valve is closed and the second bypass solenoid valve is opened.
[0034]
Claim 1 5 An air conditioner having a humidifying function of claim 9 In the air conditioner having a humidifying function of the above, a cooling single operation for cooling the indoor air by cooling the indoor air by the first heat exchanger of the heat pump circuit without supplying the water in the water storage tank to the porous module; The water supplied to the porous module by the second heat exchanger of the heat pump circuit or the water in the porous module is cooled and deodorized, and indoor air is removed by the first heat exchanger of the heat pump circuit. Cooling and deodorizing combined operation for cooling and cooling, water supplied to the porous module or water in the porous module by the second heat exchanger of the heat pump circuit, and the first heat of the heat pump circuit The above heat is used so as to perform deodorization priority operation that deodorizes with priority over cooling while limiting the cooling capacity of the exchanger. The compressor of amplifier circuits, the four-way switching valve, the first expansion valve is characterized by comprising a control unit for controlling the second expansion valve.
[0035]
Claim 1 above 5 According to the air conditioner having the humidifying function, the control unit controls the compressor of the heat pump circuit, the four-way switching valve, the first expansion valve, and the second expansion valve, so that the water in the water storage tank is perforated. Without supplying the module, the room air is cooled by the first heat exchanger of the heat pump circuit, and only the cooling is performed. In addition, the water (or water in the porous module) supplied to the porous module by the second heat exchanger of the heat pump circuit is cooled and deodorized, and the indoor air is cooled by the first heat exchanger of the heat pump circuit. To cool. Furthermore, while cooling the water (or water in the porous module) supplied to the porous module by the second heat exchanger of the heat pump circuit, the cooling capacity by the first heat exchanger of the heat pump circuit is limited, Deodorize with priority. Therefore, according to the present invention, it is possible to realize an air conditioner having a humidifying function that performs cooling single operation, cooling deodorization combined operation, and deodorization priority operation.
[0036]
Claim 1 6 An air conditioner having a humidifying function of claim 9 In the air conditioner having the humidifying function, heating alone operation is performed in which indoor air is heated by the first heat exchanger of the heat pump circuit without supplying the water in the water storage tank to the porous module. The water supplied to the porous module by the second heat exchanger of the heat pump circuit or the water in the porous module is heated and humidified, and indoor air is supplied by the first heat exchanger of the heat pump circuit. The compression of the heat pump circuit so as to perform a heating and humidification combined operation for heating and heating, and a deodorizing single operation for stopping the compressor of the heat pump circuit and deodorizing the water supplied to the porous module. And a controller for controlling the four-way switching valve, the first expansion valve, and the second expansion valve.
[0037]
Claim 1 above 6 According to the air conditioner having the humidifying function, the control unit controls the compressor of the heat pump circuit, the four-way switching valve, the first expansion valve, and the second expansion valve, so that the water in the water storage tank is perforated. Without supplying the module, the room air is heated only by the first heat exchanger of the heat pump circuit to heat the room. Further, the water (or water in the porous module) supplied to the porous module by the second heat exchanger of the heat pump circuit is humidified, and the indoor air is heated by the first heat exchanger of the heat pump circuit to be heated. . Further, the compressor of the heat pump circuit is stopped and deodorized using water supplied to the porous module. Therefore, according to the present invention, it is possible to realize an air conditioner having a humidifying function for performing heating single operation, heating humidification combined operation, and deodorization single operation.
[0038]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an air conditioner having a humidifying function of the present invention will be described in detail with reference to embodiments shown in the drawings.
[0039]
(First embodiment)
FIG. 1 is a schematic configuration diagram of an air conditioner having a humidifying function according to a first embodiment of the present invention, wherein 1 is a hydrophobic porous module, 2 is a water storage tank for storing water to be supplied to the hydrophobic porous module 1, 3 Is a pump disposed in a pipe L1 connecting the hydrophobic porous module 1 and the water storage tank 2, 4 is a fan for passing room air through the hydrophobic porous module 1, and 5 is a water supply tank 2. A float switch 6 provided in the water supply pipe L3 for supplying water from the outside is a solenoid valve for drainage provided in the drainage pipe L4 for discharging the water in the water storage tank 2. The water supply pipe L3 and the float switch 5 constitute a water supply means, and the drainage pipe L4 and the drainage electromagnetic valve 6 constitute a drainage means.
[0040]
The air conditioner having the humidifying function includes a compressor 11, a four-way switching valve 12 connected to the discharge side of the compressor 11, and one end connected to the four-way switching valve 12. A first heat exchanger 13 disposed on the windward side of the module 1; one end connected to the other end of the first heat exchanger 13; a second heat exchanger 14 disposed in the water storage tank 2; An expansion valve 15 as decompression means having one end connected to the other end of the second heat exchanger 14, a third heat exchanger 16 having one end connected to the other end of the expansion valve 15, and the third heat The accumulator 17 has one end connected to the other end of the exchanger 16 and the other end connected to the suction side of the compressor 11, and a fan 18 that sends outdoor air to the third heat exchanger 16. . The compressor 11, the four-way switching valve 12, the first heat exchanger 13, the second heat exchanger 14, the expansion valve 15, the third heat exchanger 16 and the accumulator 17 constitute a heat pump circuit.
[0041]
The hydrophobic porous module 1 includes a plurality of cylinders 1a in which flow paths for flowing water in the water storage tank 2 are formed by a hydrophobic porous film, and headers 1b and 1b that connect both ends of the plurality of cylinders 1a, respectively. And have. The other end of the pipe L1 having one end connected to the lower part of the water storage tank 2 is connected to the lower header 1b of the hydrophobic porous module 1, and one end of the pipe L2 is connected to the upper header 1b of the hydrophobic porous module 1. The other end of the pipe L2 is connected to the upper part of the water storage tank 2. The hydrophobic porous module 1, the water storage tank 2, the pump 3, the pipe L1, and the pipe L2 form a circulation circuit.
[0042]
In the air conditioner having the humidifying function having the above configuration, in the heating and humidifying combined operation in which heating and humidification are performed, when the compressor 11 is operated by switching the four-way switching valve 12 to the position of the solid line, the air is discharged from the compressor 11. The refrigerant is condensed by the first and second heat exchangers 13 and 14 as condensers and then decompressed by the expansion valve 15. The decompressed refrigerant evaporates in the third heat exchanger 16 as an evaporator, and then returns to the suction side of the compressor 11 via the accumulator 17. Then, the room air from the fan 13 is heated by the first heat exchanger 13, and the warm air is blown out into the room through the hydrophobic porous module 1. Further, the water in the water storage tank 2 is heated by the second heat exchanger 14 and the pump 3 is operated to supply the hot water in the water storage tank 2 to the hydrophobic porous module 1 through the pipe L1. The hot water supplied to the hydrophobic porous module 1 returns to the water storage tank 2 through the pipe L2 through the flow paths in the plurality of cylinders 1a, and the hot water circulates.
[0043]
At this time, water vapor is released from the inside of the cylinder 1a of the hydrophobic porous module 1 through the hydrophobic porous membrane to the air supplied from the fan 4 via the first heat exchanger 13, and humidification is performed. During operation, the heating capacity of the heat pump circuit is controlled by controlling the operating frequency of the compressor 11, and hot water having a temperature optimal for humidification is supplied to the hydrophobic porous module 1.
[0044]
During operation, when the drainage electromagnetic valve 6 is opened and drained for a predetermined time in order to prevent the hard component dissolved in water from being concentrated and depositing the scale, the float switch 5 is turned on and the water supply pipe When fresh water is supplied to the water storage tank 2 via L3 and reaches a predetermined water level, the float switch 5 is turned off.
[0045]
On the other hand, in the combined cooling and deodorizing operation in which cooling and deodorizing are performed, when the four-way switching valve 12 is switched to the dotted line position and the compressor 11 is operated, the refrigerant discharged from the compressor 11 becomes the third heat as a condenser. After being condensed by the exchanger 16, the pressure is reduced by the expansion valve 15. The decompressed refrigerant evaporates in the first and second heat exchangers 13 and 14 as evaporators, and then returns to the suction side of the compressor 11 via the accumulator 17. Then, the room air from the fan 13 is cooled by the first heat exchanger 13, and the cold air is blown out into the room through the hydrophobic porous module 1. Further, the water in the water storage tank 2 is cooled by the second heat exchanger 14 and the pump 3 is operated to supply the cold water in the water storage tank 2 to the hydrophobic porous module 1 through the pipe L1. The cold water supplied to the hydrophobic porous module 1 returns to the water storage tank 2 through the pipe L2 through the flow paths in the plurality of cylinders 1a, and the cold water circulates.
[0046]
At this time, the cold water passing through the cylinder 1a of the hydrophobic porous module 1 absorbs the odor component (or gas component) from the air supplied from the fan 4 through the hydrophobic porous membrane forming the cylinder 1a. Deodorization is performed. During operation, the cooling capacity of the heat pump circuit is controlled by controlling the operating frequency of the compressor 11, and cold water having a temperature optimal for deodorization is supplied to the hydrophobic porous module 1.
[0047]
Also, in order to prevent the penetration concentration of odorous gas and VOC (Volatile Organic Compound) from gradually increasing due to absorption during operation, the drain solenoid valve 6 is predetermined. When the time is opened and drained, the float switch 5 is turned on, new water is supplied to the water storage tank 2 through the water supply pipe L3, and when the water level reaches a predetermined level, the float switch 5 is turned off. Thus, the absorption performance (deodorization, degassing) is recovered by discharging the water whose concentration has increased in the water storage tank 2 and replacing it with new water. Cost sharing can be prevented by sharing the scale drainage control during the humidification operation and the gas-dissolving drainage control during the deodorization operation.
[0048]
It should be noted that the degree of dissolution of odorous gas and VOC components into water is indicated by Henry's constant, and the smaller the Henry's constant, the easier it is to dissolve in water. This Henry's constant decreases with decreasing water temperature. For example, FIG. 16 shows ammonia (NH _Three ) Is a characteristic of the Henry constant with respect to the temperature change (the horizontal axis is the temperature, the vertical axis is the Henry constant), and as is apparent from FIG. _Three ) Is smaller as the temperature is lower, and other odorous gases and VOC components have the same tendency. Thus, the lower the temperature of the water, the smaller the Henry's constant, and the odorous gas and VOC components are more easily dissolved in the water. Therefore, the deodorizing performance can be improved by using cold water. Moreover, since the pressure difference between the water vapor partial pressure on the cold water side and the water vapor partial pressure on the air becomes smaller as the temperature of the water becomes lower, the water vapor is less likely to be released into the air, and the humidification performance decreases.
[0049]
Further, as shown in Table 1, the Henry constant greatly varies depending on the type of gas.
[Table 1]

[0050]
For example, if the degree of ammonia penetration (H = 0.00053) is 100%, trimethylamine is reduced to approximately 1/16 and the degassing performance is reduced. Therefore, the drain interval for replacing the water in the water storage tank is increased by 16 times. You can stretch. Therefore, since the characteristics of water, air odor, VOC, and the like change at the place where they are installed, an appropriate drainage interval can be set by remote control operation according to the user's request.
[0051]
As described above, in the air conditioner having the humidifying function of the first embodiment, the first heat exchanger 13 heats and cools indoor air to perform the heating operation and the cooling operation, and the heat pump circuit having high thermal efficiency. Since the warm water heated by the second heat exchanger 14 is supplied to the hydrophobic porous module 1 for humidification, the power consumption can be reduced.
[0052]
Moreover, since the 2nd heat exchanger 14 of the said heat pump circuit has a cooling function in addition to a heating function, it is equipped with the outstanding deodorizing function with a high energy-saving effect using the water cooled with the heat pump circuit with good heat efficiency. be able to.
[0053]
Further, by disposing the second heat exchanger 14 of the heat pump circuit in the water storage tank 2, the water in the water storage tank 2 can be efficiently heated or cooled.
[0054]
In addition, by arranging the first heat exchanger 13 on the windward side of the hydrophobic porous module 1, indoor air heated or cooled via the first heat exchanger 13 can be supplied to the hydrophobic porous module 1. The efficiency of humidification or deodorization by the hydrophobic porous module 1 is improved.
[0055]
Further, the water in the water storage tank 2 is circulated by the pump 3 through the flow path in the cylinder 1a of the hydrophobic porous module 1, so that the water whose temperature is adjusted by the second heat exchanger 14 is circulated in the hydrophobic porous module. 1 can be continuously fed. Further, by circulating the water in the water storage tank 2 through the flow path of the porous module 1 at the time of deodorization, an increase in the concentration of the odorous component absorbed in the water in the porous module 1 can be suppressed.
[0056]
In addition, after the water in the water storage tank 2 is discharged by the drainage means (drainage pipe L4, drainage solenoid valve 6), the water is supplied into the water storage tank 2 by the water supply means (water supply pipe L3, float switch 5). In addition, the water in the water storage tank 2 can be replaced so that the concentration of the hard component does not become too high due to the humidifying operation, while the concentration of the odorous component does not become too high due to the deodorizing operation. Thus, the water in the water storage tank 2 can be replaced.
[0057]
(Second Embodiment)
FIG. 2 is a schematic configuration diagram of an air conditioner having a humidifying function according to a second embodiment of the present invention, in which 21 is a hydrophobic porous module, 22 is a water storage tank for storing water to be supplied to the hydrophobic porous module 21, and 24. Is a fan for allowing indoor air to pass through the hydrophobic porous module 21, 25 is a float switch provided in a water supply pipe L13 for supplying water to the water storage tank 22, and 26 is the hydrophobic porous module. 21 is a drainage solenoid valve disposed in a drainage pipe L12 for discharging water in the chamber 21. The water storage tank 22 is arranged at a position higher than the hydrophobic porous module 21. The water supply pipe L13 and the float switch 25 constitute a water supply means, and the drainage pipe L12 and the drainage electromagnetic valve 26 constitute a drainage means.
[0058]
The air conditioner having the humidifying function includes a compressor 31, a four-way switching valve 32 connected to the discharge side of the compressor 31, and one end connected to the four-way switching valve 32. A first heat exchanger 33 disposed on the windward side of the module 21 and a second heat exchanger 34 disposed at one end of the first heat exchanger 33 and disposed in the hydrophobic porous module 21. An expansion valve 35 as a decompression means having one end connected to the other end of the second heat exchanger 34, a third heat exchanger 36 having one end connected to the other end of the expansion valve 35, and the second An accumulator 37 having one end connected to the other end of the three heat exchanger 36 and the other end connected to the suction side of the compressor 31; and a fan 38 for sending outdoor air to the third heat exchanger 36. ing. The compressor 31, the four-way switching valve 32, the first heat exchanger 33, the second heat exchanger 34, the expansion valve 35, the third heat exchanger 36, and the accumulator 37 constitute a heat pump circuit.
[0059]
The hydrophobic porous module 21 includes a plurality of cylinders 21a in which a flow path for flowing water in the water storage tank 22 is formed by a hydrophobic porous film, and a header 21b connecting the lower ends of the plurality of cylinders 21a, And a header 21c for connecting the upper ends of the plurality of cylinders 21a. A second heat exchanger 34 is accommodated in a water storage space formed in the header 21b. Further, the other end of the pipe L11 having one end connected to the lower portion of the water storage tank 22 is connected to the header 21c on the upper side of the hydrophobic porous module 21, and the pipe L12 is connected to the header 21b on the lower side of the hydrophobic porous module 21. Is connected to one end.
[0060]
The air conditioner having the humidifying function of the second embodiment has the same effect as that of the air conditioner having the humidifying function of the first embodiment, and in the hydrophobic porous module 21 adjacent to the first heat exchanger 33. By arrange | positioning the 2nd heat exchanger 34, a pump and pump connection piping can be removed rather than arrange | positioning a 2nd heat exchanger in the water storage tank 22. FIG. Further, water is supplied from the water storage tank 22 located higher than the hydrophobic porous module 21 to the upper part of the hydrophobic porous module 21 through the pipe L11, and the drainage electromagnetic valve 26 is opened to drain the water through the drain pipe L12. Therefore, a pump and piping for circulating from the water storage tank 22 through the hydrophobic porous module 21 are not necessary. Therefore, the structure can be simplified and the cost can be reduced.
[0061]
(Third embodiment)
FIG. 3 is a schematic configuration diagram of an air conditioner having a humidifying function according to a third embodiment of the present invention. 41 is a hydrophobic porous module, 42 is a water storage tank for storing water to be supplied to the hydrophobic porous module 41, 43. Is a pump disposed in a pipe L31 connecting the hydrophobic porous module 41 and the water storage tank 42, 44 is a fan for passing room air through the hydrophobic porous module 41, and 45 is in the water storage tank 42. A float switch 46 provided in the water supply pipe L33 for supplying water from the outside is a drainage electromagnetic valve disposed in the drainage pipe L34 for discharging the water in the water storage tank 42. The water supply pipe L33 and the float switch 45 constitute a water supply means, and the drainage pipe L34 and the drainage electromagnetic valve 46 constitute a drainage means.
[0062]
The air conditioner having the humidifying function includes a compressor 51, a four-way switching valve 52 connected to the discharge side of the compressor 51, and one end connected to the four-way switching valve 52. A first heat exchanger 53 disposed on the windward side of the module 41; a second heat exchanger 54 having a double pipe structure with one end connected to the other end of the first heat exchanger 53; and the second heat. An expansion valve 55 serving as a decompression unit having one end connected to the other end of the exchanger 54, a third heat exchanger 56 having one end connected to the other end of the expansion valve 55, and the third heat exchanger 56 The accumulator 57 has one end connected to the other end and the other end connected to the suction side of the compressor 51, and a fan 58 that sends outdoor air to the third heat exchanger 56. The compressor 11, the four-way switching valve 12, the first heat exchanger 13, the second heat exchanger 14, the expansion valve 15, the third heat exchanger 16 and the accumulator 17 constitute a heat pump circuit.
[0063]
The hydrophobic porous module 41 has the same configuration as the hydrophobic porous module 1 of the first embodiment. The other end of the pipe L31 having one end connected to the lower portion of the water storage tank 42 is connected to the lower header 41b of the hydrophobic porous module 41, and one end of the pipe L32 is connected to the upper header 41b of the hydrophobic porous module 41. The other end of the pipe L32 is arranged on the upper part of the water storage tank 42. The hydrophobic porous module 41, the water storage tank 42, the second heat exchanger 54, the pump 43, the pipe L31, and the pipe L32 form a circulation circuit.
[0064]
The air conditioner having the humidifying function of the third embodiment has the same effect as the air conditioner having the humidifying function of the first embodiment, and the second heat exchanger 54 has a double pipe structure heat exchanger. By using this, the second heat exchanger 54 can be disposed outside the water storage tank 42, the structure can be simplified, and the cost can be reduced.
[0065]
(Fourth embodiment)
FIG. 4 is a schematic configuration diagram of an air conditioner having a humidifying function according to a fourth embodiment of the present invention, in which 61 is a hydrophobic porous module, 62 is a water storage tank for storing water supplied to the hydrophobic porous module 61, 64 Is a fan for allowing indoor air to pass through the hydrophobic porous module 61, 65 is a float switch provided in a water supply pipe L43 for supplying water from the outside to the water storage tank 62, and 66 is the hydrophobic porous module 61 is a drainage solenoid valve disposed in a drainage pipe L42 for discharging water in 61. The water supply pipe L43 and the float switch 65 constitute a water supply means, and the drainage pipe L42 and the drainage electromagnetic valve 66 constitute a drainage means.
[0066]
The air conditioner having the humidifying function includes a compressor 71, a four-way switching valve 72 connected to the discharge side of the compressor 71, and one end connected to the four-way switching valve 72. One end is connected to the first heat exchanger 73 disposed on the windward side of the module 61 and on the leeward side of the fan 64, and the other end of the first heat exchanger 73, and is disposed in the hydrophobic porous module 61. A second heat exchanger 74; an expansion valve 75 serving as a decompression means having one end connected to the other end of the second heat exchanger 74; and a third heat exchange having one end connected to the other end of the expansion valve 75. And an accumulator 77 having one end connected to the other end of the third heat exchanger 76 and the other end connected to the suction side of the compressor 71, and the outdoor air to the third heat exchanger 76. And a fan 78. The compressor 71, the four-way switching valve 72, the first heat exchanger 73, the second heat exchanger 74, the expansion valve 75, the third heat exchanger 76, and the accumulator 77 constitute a heat pump circuit.
[0067]
The hydrophobic porous module 61 includes a plurality of cylinders 61a in which a space 61d to which water in the water storage tank 62 is supplied is formed by a hydrophobic porous film, and a header 61b that connects lower ends of the plurality of cylinders 61a. And have. The other end of the pipe L41 whose one end is connected to the lower part of the water storage tank 62 is connected to the header 61b of the hydrophobic porous module 61, and one end of the pipe L42 is connected to the header 61b of the hydrophobic porous module 61. FIG. 5 shows a top view of the plurality of cylinders 61a of the hydrophobic porous module 61. The cylinders 61a having a rectangular cross-sectional shape stand on the header 61b so that the long sides of the cross-sections are adjacent to each other. The ventilation resistance is reduced with respect to the air flow in the direction of the arrow. FIG. 6 is a perspective view showing a state in which the U-shaped heat transfer tube 74a of the second heat exchanger 74 is disposed in the cylindrical body 61a of the hydrophobic porous module 61. In addition, as shown in FIG. 7, even if a plurality of metal sheets 61 c are wound around the U-shaped heat transfer tube 74 a in the cylindrical body 61 a in a strip shape to increase the heat transfer area, the heat exchange efficiency can be improved. Good. In this case, the metal sheet 61c may be subjected to anticorrosion coating, or the metal sheet 61c may be covered with a heat shrinkable tube.
[0068]
The air conditioner having the humidifying function of the fourth embodiment has the same effect as the air conditioner having the humidifying function of the first embodiment, and is provided in the plurality of cylinders 61a of the hydrophobic porous module 61. 2 By incorporating the heat transfer tube of the heat exchanger 74, there is no heat loss due to pumps, piping, etc., compared to the case where the second heat exchanger is arranged in the water storage tank, and a plurality of cylindrical bodies of the hydrophobic porous module 61 Since the water in 61a is directly heated or cooled, the efficiency is further improved.
[0069]
(Fifth embodiment)
FIG. 8 is a schematic configuration diagram of an air conditioner having a humidifying function according to a fifth embodiment of the present invention, in which 81 is a hydrophobic porous module, 82 is a water storage tank for storing water supplied to the hydrophobic porous module 81, 83 Is a pump disposed in a pipe L51 connecting the hydrophobic porous module 81 and the water storage tank 82, 84 is a fan for passing room air through the hydrophobic porous module 81, and 85 is in the water storage tank 82. A solenoid valve for water supply provided in a water supply pipe L53 for supplying water from the outside, 86 is a solenoid valve for drainage provided in a drain pipe L54 for discharging water in the water storage tank 82, and 87 is operated. A remote controller for operation (hereinafter referred to as a remote controller) 88 is a control unit for controlling the operation of the apparatus by a driving operation signal from the remote controller 87. The water supply pipe L53 and the water supply electromagnetic valve 85 constitute a water supply means, and the drainage pipe L54 and the water discharge electromagnetic valve 86 constitute a drainage means.
[0070]
A water level sensor 100 for detecting the water level is disposed on the side wall in the water storage tank 82. The remote controller 87 includes a humidity sensor 101 that detects the relative humidity in the room, an odor sensor 102 that detects the odor concentration in the room, and an indoor temperature sensor 103 that detects the room temperature. A signal representing the concentration and the room temperature is sent to the control unit 88.
[0071]
In addition, the air conditioner having the humidifying function includes a compressor 91, a four-way switching valve 92 connected to the discharge side of the compressor 91, and one end connected to the four-way switching valve 92. A first heat exchanger 93 disposed on the windward side of the module 81 and on the leeward side of the fan 84, and a second heat exchanger 93 disposed at one end of the first heat exchanger 93 and disposed in the water storage tank 82. A heat exchanger 94; a first expansion valve 95 serving as a decompression means having one end connected to the other end of the second heat exchanger 94; and a third having one end connected to the other end of the first expansion valve 95. The heat exchanger 96, an accumulator 97 having one end connected to the other end of the third heat exchanger 96 and the other end connected to the suction side of the compressor 91, and outdoor air to the third heat exchanger 96 And a fan 98 for sending The compressor 91, the four-way switching valve 92, the first heat exchanger 93, the second heat exchanger 94, the first expansion valve 95, the third heat exchanger 96, and the accumulator 97 constitute a heat pump circuit. The compressor 91, the four-way switching valve 92, the first expansion valve 95, the third heat exchanger 96 and the accumulator 97 constitute an outdoor unit 90.
[0072]
The hydrophobic porous module 81 has the same configuration as the hydrophobic porous module 1 of the first embodiment. The other end of the pipe L51 whose one end is connected to the lower part of the water storage tank 82 is connected to the lower header 81b of the hydrophobic porous module 81, and one end of the pipe L52 is connected to the upper header 81b of the hydrophobic porous module 81. And the other end of the pipe L52 is arranged above the water storage tank 82. The hydrophobic porous module 81, the water storage tank 82, the pump 83, the pipe L51, and the pipe L52 form a circulation circuit. Further, a temperature sensor 104 for detecting the water temperature is arranged on the header 1b on the upper side of the hydrophobic porous module 1.
[0073]
In the air conditioner having the humidifying function having the above configuration, the target relative humidity RH0, the target odor concentration N0 and the target room temperature t0 set by the remote controller 87 are read by the control unit 88, and the humidity sensor 101 and odor sensor on the remote controller 87 side are read. The control unit 88 reads the indoor relative humidity RH1, the odor concentration N1, and the room temperature t1 detected by the room temperature sensor 103 and the room temperature sensor 103, respectively. The control unit 88 then compares the relative humidity difference ΔRH (= RH1−RH0) between the indoor relative humidity RH1 and the target relative humidity RH0 and the odor concentration difference ΔN between the indoor odor density N1 and the target odor density N0. (= N1−N0) and the indoor temperature difference Δt (= t1−t0) between the indoor temperature t1 and the target indoor temperature t0 are calculated, and the relative humidity difference ΔRH, the odor concentration difference ΔN, and the indoor temperature difference Δ Based on t, in the heating operation mode,
△ t> 0 and △ RH ≦ 0 and △ N = 0, heating and humidification combined operation
△ t> 0 and △ RH = 0 and △ N = 0, heating single operation
△ t = 0 and △ RH = 0 and △ N> 0, deodorization single operation
On the other hand, in the cooling operation mode,
When △ t> 0 and △ N> 0, combined cooling and deodorization operation
When △ t> 0 and △ N = 0, cooling only operation
Deodorization priority operation when △ t = 0 and △ N> 0
Switch to.
[0074]
[Heating operation mode]
(1-1) Combined heating and humidification operation
In the heating and humidification combined operation, when the four-way switching valve 92 is switched to the position of the solid line and the compressor 91 is operated, the refrigerant discharged from the compressor 91 is converted into first and second heat exchangers 93, After being condensed at 94, the pressure is reduced by the first expansion valve 95. The decompressed refrigerant evaporates in the third heat exchanger 96 as an evaporator, and then returns to the suction side of the compressor 91 via the accumulator 97. Then, the indoor air from the fan 84 is warmed by the first heat exchanger 93, and the warm air is blown into the room through the hydrophobic porous module 81. Further, the water in the water storage tank 82 is heated by the second heat exchanger 94 and the pump 83 is operated to supply the hot water in the water storage tank 82 to the hydrophobic porous module 81 through the pipe L51. The hot water supplied to the hydrophobic porous module 81 returns to the water storage tank 82 through the pipe L52 through the flow paths in the plurality of cylinders 81a, and the hot water circulates.
[0075]
At this time, in the hydrophobic porous module 81, water vapor is discharged from the hot water passing through the cylinder 81a through the hydrophobic porous membrane of the cylinder 81a to the air supplied from the fan 84 via the first heat exchanger 93. Humidification is performed. During operation, the heating capacity of the heat pump circuit is controlled by controlling the operating frequency of the compressor 91, and hot water having a temperature optimal for humidification is supplied to the hydrophobic porous module 81.
[0076]
Then, during the heating and humidifying combined operation, in order to prevent the hard component dissolved in the water from being concentrated and depositing the scale, the draining solenoid valve 86 is opened for a predetermined time and drained, and then the draining solenoid valve 86 is closed. Then, the water supply electromagnetic valve 85 is opened to supply new water to the water storage tank 82. When the water level detected by the water level sensor 100 reaches a predetermined water level, the water supply electromagnetic valve 85 is closed.
[0077]
(1-2) Single heating operation
The pump 83 is stopped, the water supply electromagnetic valve 85 is closed, the water discharge electromagnetic valve 86 is opened, the water in the water storage tank 82 is discharged, and the others are the same as in “(1-1) Heating and humidification combined operation”. By performing the operation, only the heating operation is performed by the heat radiation of the first heat exchanger 93.
[0078]
(1-3) Deodorization single operation
When the temperature of the water in the water storage tank 82 is sufficiently low to be used for deodorization, the compressor 91 is stopped and the pump 83 is operated to circulate the water in the water storage tank 82 through the hydrophobic porous module 81. Only deodorizing is performed. If the odor of indoor air and other gases are absorbed, the concentration of water contamination increases and the deodorization performance decreases, so that the drainage solenoid valve 86 is opened for a predetermined time, and the concentration of water in the water storage tank 82 is increased. After the water is drained, the drainage electromagnetic valve 86 is closed, the water supply electromagnetic valve 85 is opened to supply new water to the water storage tank 82, and when the water level detected by the water level sensor 100 reaches a predetermined water level, the water supply electromagnetic valve 85 Close.
[0079]
[Cooling operation mode]
(2-1) Combined cooling and deodorization operation
In the cooling and deodorization combined operation, when the four-way switching valve 92 is switched to the dotted line position and the compressor 91 is operated, the refrigerant discharged from the compressor 91 is condensed by the third heat exchanger 96 as a condenser. Thereafter, the pressure is reduced by the first expansion valve 95. The decompressed refrigerant evaporates in the first and second heat exchangers 93 and 94 as evaporators, and then returns to the suction side of the compressor 91 via the accumulator 97. Then, the indoor air from the fan 84 is cooled by the first heat exchanger 93, and the cold air is blown out into the room through the hydrophobic porous module 81. Further, the water in the water storage tank 82 is cooled by the second heat exchanger 94 and the pump 83 is operated to supply the cold water in the water storage tank 82 to the hydrophobic porous module 81 through the pipe L51. The cold water supplied to the hydrophobic porous module 81 returns to the water storage tank 82 through the pipe L52 through the flow paths in the plurality of cylinders 81a, and the cold water circulates.
[0080]
At this time, in the hydrophobic porous module 81, the odor component (or gas component) in the air supplied from the fan 84 is absorbed by the cold water in the cylinder 81a through the hydrophobic porous membrane of the cylinder 81a, and deodorized. Done. During operation, the cooling frequency of the heat pump circuit is controlled by controlling the operating frequency of the compressor 91, and cold water having a temperature optimum for deodorization is supplied to the hydrophobic porous module 81.
[0081]
When the water temperature of the hydrophobic porous module 81 detected by the temperature sensor 104 is continuously lower than the lower limit temperature (= dew point temperature + predetermined temperature) for a certain time or longer, the drainage electromagnetic valve 86 is opened and the water storage tank 82 is opened. After draining, the water supply electromagnetic valve 85 is opened to supply water to the water storage tank 82 so that the water temperature of the hydrophobic porous module 81 does not continuously become lower than the lower limit temperature for a certain time or more. Furthermore, even if the water in the water storage tank 82 is replaced, if the temperature falls below the lower limit temperature (= dew point temperature + predetermined temperature) continuously for a certain time or longer, the second heat exchange is performed by lowering the operating frequency of the compressor 91. The amount of cooling of the vessel 94 is decreased so that the water temperature of the hydrophobic porous module 81 does not fall below the lower limit temperature continuously for a certain time or more. By doing so, the dew condensation to the hydrophobic porous membrane of the hydrophobic porous module 81 can be prevented, and the efficiency fall by dew condensation etc. can be prevented.
[0082]
In order to prevent the concentration of odorous gas and VOC (Volatile Organic compound) from gradually increasing due to absorption during operation, the drainage / drainage electromagnetic valve 86 is installed. After opening for a predetermined time and draining, the draining electromagnetic valve 86 is closed, the water supply electromagnetic valve 85 is opened to supply new water to the water storage tank 82, and when the water level detected by the water level sensor 100 reaches the predetermined water level, The electromagnetic valve 85 is closed. Thus, the absorption performance (deodorization, degassing) is recovered by discharging the water whose concentration has increased in the water storage tank 82 and replacing it with new water.
[0083]
(2-2) Cooling single operation
The pump 83 is stopped, the water supply electromagnetic valve 85 is closed, the drainage electromagnetic valve 86 is opened, the water in the water storage tank 82 is reduced, and the others are the same as “(2-1) Cooling deodorization combined operation”. Only the cooling operation is performed by the heat absorption of the first heat exchanger 93.
[0084]
(2-3) Deodorizing priority operation
In the deodorization single operation, the same operation as “(2-1) Cooling and deodorization combined operation” is performed, except that the compressor 91 is stopped when the indoor temperature t1 falls below the target indoor temperature t0. That is, deodorization is performed with priority over cooling while limiting the cooling capacity of the first heat exchanger 93 of the heat pump circuit.
[0085]
As described above, in the air conditioner having the humidifying function of the fifth embodiment, the first heat exchanger 93 heats and cools the indoor air to perform the heating operation and the cooling operation, and the heat pump circuit with high thermal efficiency. Since the hot water heated by the second heat exchanger 94 is supplied to the hydrophobic porous module 1 and humidified, power consumption can be reduced.
[0086]
Moreover, since the second heat exchanger 94 of the heat pump circuit has a cooling function in addition to the heating function, the second heat exchanger 94 has an excellent deodorizing function with a high energy saving effect by using water cooled by a heat pump with high heat efficiency. be able to.
[0087]
In addition, by disposing the second heat exchanger 94 of the heat pump circuit in the water storage tank 82, the water in the water storage tank 82 can be efficiently heated or cooled.
[0088]
In addition, by arranging the first heat exchanger 93 on the windward side of the hydrophobic porous module 81, indoor air heated or cooled via the first heat exchanger 93 can be supplied to the hydrophobic porous module 81. The efficiency of humidification or deodorization by the hydrophobic porous module 81 is improved.
[0089]
Further, the water in the water storage tank 82 is circulated by the pump 83 through the flow path in the cylinder 81a of the hydrophobic porous module 81, so that the water whose temperature is adjusted by the second heat exchanger 94 is circulated in the hydrophobic porous module 81. 81 can be continuously supplied. Further, by circulating the water in the water storage tank 2 through the flow path of the porous module 1 at the time of deodorization, an increase in the concentration of the odorous component absorbed in the water in the porous module 1 can be suppressed.
[0090]
Further, after the water in the water storage tank 82 is discharged by the drainage means (drainage pipe L54, drainage electromagnetic valve 86), the water is supplied to the water storage tank 82 by the water supply means (water supply pipe L53, water supply solenoid valve 85). As a result, the water in the water storage tank 82 can be replaced so that the concentration of the hard component does not become too high due to the humidifying operation, and the concentration of the odorous component becomes too high by the deodorizing operation. The water in the water storage tank 82 can be replaced so as not to decrease.
[0091]
(Sixth embodiment)
FIG. 9 is a schematic configuration diagram of an air conditioner having a humidifying function according to a sixth embodiment of the present invention. Humidification of the fifth embodiment is performed except for the operation of the expansion valve and the control unit between the first and second heat exchangers. It has the same configuration as that of the air conditioner having a function, and the same components are denoted by the same reference numerals and description thereof is omitted.
[0092]
The air conditioner having the humidifying function of the sixth embodiment has the same effect as the air conditioner having the humidifying function of the fifth embodiment, and, as shown in FIG. By disposing the second expansion valve 110 between the two heat exchangers 94, a combined heating and deodorization operation in which heating and deodorization are newly performed in the heating operation mode becomes possible, while cooling and operation in the cooling operation mode are newly performed. Cooling and humidification combined operation in which humidification is performed becomes possible.
[0093]
(3-1) Combined heating and deodorization operation
In the heating and deodorization combined operation, when the compressor 91 is operated by fully opening the first expansion valve 95 of the heat pump circuit, restricting the second expansion valve 110 to a predetermined opening, switching the four-way switching valve 92 to the position of the solid line, The refrigerant discharged from the compressor 91 is condensed by the first heat exchanger 93 as a condenser and then depressurized by the second expansion valve 100. The decompressed refrigerant evaporates in the second heat exchanger 94 and the third heat exchanger 96 as evaporators, and then returns to the suction side of the compressor 91 via the accumulator 97. Then, the indoor air from the fan 84 is warmed by the first heat exchanger 93, and the warm air is blown into the room through the hydrophobic porous module 81. Further, the water in the water storage tank 82 is cooled by the second heat exchanger 94 and the pump 83 is operated to supply the cold water in the water storage tank 82 to the hydrophobic porous module 81 through the pipe L51. The cold water supplied to the hydrophobic porous module 81 returns to the water storage tank 82 through the pipe L52 through the flow paths in the plurality of cylinders 81a, and the cold water circulates.
[0094]
At this time, in the hydrophobic porous module 81, the odor component (or gas component) of the air supplied from the fan 84 passes through the hydrophobic porous membrane of the cylinder 81a and is absorbed by the cold water in the cylinder 81a to perform deodorization. Is called.
[0095]
(3-2) Cooling and humidification combined operation
In the cooling and humidification combined operation, when the compressor 91 is operated by fully opening the first expansion valve 95 of the heat pump circuit, restricting the second expansion valve 110 to a predetermined opening, switching the four-way switching valve 92 to the dotted line position, The refrigerant discharged from the compressor 91 is condensed by the third heat exchanger 96 and the second heat exchanger 94 as condensers, and then decompressed by the second expansion valve 110. The decompressed refrigerant evaporates in the first heat exchanger 93 as an evaporator, and then returns to the suction side of the compressor 91 via the accumulator 97. Then, the indoor air from the fan 84 is cooled by the first heat exchanger 93, and the cold air is blown out into the room through the hydrophobic porous module 81. Further, the water in the water storage tank 82 is heated by the second heat exchanger 94 and the pump 83 is operated to supply the hot water in the water storage tank 82 to the hydrophobic porous module 81 through the pipe L51. The hot water supplied to the hydrophobic porous module 81 returns to the water storage tank 82 through the pipe L52 through the flow paths in the plurality of cylinders 81a, and the hot water circulates.
[0096]
At this time, steam is released from the hot water in the cylinder 81a of the hydrophobic porous module 81 through the hydrophobic porous membrane to the air supplied from the fan 84, and humidification is performed. In the hydrophobic porous module 81, the odor component (or gas component) of the air supplied from the fan 84 passes through the hydrophobic porous membrane of the cylinder 81a and is absorbed by the hot water in the cylinder 81a, so that the deodorization is slightly performed. Is called.
[0097]
(Seventh embodiment)
FIG. 10: is a schematic block diagram of the air conditioner which has a humidification function of 7th Embodiment of this invention, The structure same as the air conditioner which has the humidification function of 5th Embodiment except the operation | movement of a bypass means and a control part. The same components are denoted by the same reference numerals, and description thereof is omitted.
[0098]
As shown in FIG. 10, a bypass pipe L61 is connected to both ends of the first heat exchanger 93, a first bypass solenoid valve 111 is disposed in the bypass pipe L61, and a compressor of the first heat exchanger 93 is provided. A second bypass solenoid valve 112 is disposed on the 91 side. On the other hand, the bypass pipe L62 is connected to both ends of the second heat exchanger 94, the first bypass solenoid valve 113 is disposed in the bypass pipe L62, and the third heat exchanger 95 side of the second heat exchanger 94 is disposed. A second electromagnetic valve 114 is disposed on the side. The first and second bypass solenoid valves 111 and 112 and the bypass pipe L61 constitute bypass means, and the first and second bypass solenoid valves 113 and 114 and the bypass pipe L62 constitute bypass means.
[0099]
In the air conditioner having the humidifying function having the above configuration, the first bypass solenoid valve 111 and the second solenoid valve 114 are closed, the second bypass solenoid valve 112 and the first bypass solenoid valve 113 are opened, and the second heat By bypassing the exchanger 94, there is no heating and cooling by the second heat exchanger 94 in the heating single operation and the cooling single operation, and the efficiency is improved. Further, by opening the first bypass solenoid valve 111 and the second solenoid valve 114, closing the second bypass solenoid valve 112 and the first bypass solenoid valve 113, and bypassing the first heat exchanger 93, In the humidification single operation and deodorization single operation, there is no heating and cooling by the first heat exchanger 93, and the efficiency is improved.
[0100]
FIGS. 11-15 is a flowchart which shows the driving | operation process of the said control part 88, The operation | movement of the control part 88 is demonstrated according to FIGS. 11-15. 11 to 15, the case where the operation mode is the cooling will be described, and the case where the operation mode is the heating will be omitted because it is substantially the same operation as the cooling operation mode.
[0101]
First, when the process starts, the operation of the remote controller 87 is read in step S1. That is, the controller 88 reads the operation details (operation mode, required indoor temperature t0, required relative humidity RH0, required odor concentration N0, drainage interval, etc.) set by the user with the remote controller 87.
Next, the process proceeds to step S2, and it is determined whether the operation mode is heating or cooling. When the operation mode is cooling, the process proceeds to step S3, and when the operation mode is heating, the process proceeds to the heating operation process.
Next, in step S3, it is determined whether the operation mode is single or combined. If the operation mode is single, the process proceeds to step S4 to determine whether the operation is cooling / humidification / deodorization. If it is determined in step S4 that the cooling is a single operation, the process proceeds to step S5. On the other hand, if it is determined that the humidification is a single operation, the process proceeds to step S11 in FIG. Proceed to step S21 of step 13.
Further, when the operation mode is composite in step S3, the process proceeds to step S10, where it is determined whether the operation mode is cooling humidification / cooling deodorization, and when the operation mode is a combined operation of cooling humidification, On the other hand, when the operation mode is a combined operation of cooling and deodorizing, the process proceeds to step S41 in FIG.
[0102]
[Cooling only]
In the cooling only operation, the room temperature t1 detected by the room temperature sensor 103 on the remote controller 87 side is read in step S5.
Next, the process proceeds to step S6, and a room temperature difference Δt (= t1−t0) between the room temperature t1 and the target room temperature t0 is obtained.
Next, the process proceeds to step S7, and the operating frequency HZ is determined so that the indoor temperature difference Δt is reduced.
And it progresses to step S8 and cooling operation control is performed. In this cooling operation control, the first bypass solenoid valve 111 and the second solenoid valve 114 are closed, the second bypass solenoid valve 112 and the first bypass solenoid valve 113 are opened, and the second heat exchanger 94 is bypassed. . When the four-way switching valve 92 is switched to the dotted line position and the compressor 91 is operated, the refrigerant discharged from the compressor 91 is condensed in the third heat exchanger 96 as a condenser, and then the first The pressure is reduced by the expansion valve 95. The decompressed refrigerant evaporates only by the first heat exchanger 93 as an evaporator, and then returns to the suction side of the compressor 91 via the accumulator 97. Then, the indoor air from the fan 13 is cooled by the first heat exchanger 93, and the cold air is blown into the nine rooms to perform cooling.
Next, it progresses to step S9, and if it judges that indoor temperature difference (DELTA) t is a positive value, it will return to step S5 and will repeat step S5-S8. On the other hand, if it is determined in step S9 that the indoor temperature difference Δt is equal to or less than zero, this process is terminated.
[0103]
[Humidity single operation]
In the humidification single operation, the room relative humidity RH1 detected by the humidity sensor 103 on the remote controller 87 side in step S11 shown in FIG. 12 is read.
In step S12, the water temperature T1 of the hydrophobic porous module 81 detected by the temperature sensor 104 is read.
In step S13, the relative humidity difference ΔRH (= RH1−RH0) between the indoor relative humidity RH1 and the required relative humidity RH0 is obtained.
In step S14, the target heating water temperature T0h is determined based on the relative humidity difference ΔRH, and the temperature difference ΔT (= T1-T0h) between the water temperature T1 of the hydrophobic porous module 1 and the target heating water temperature T0h is determined. Ask.
Next, it progresses to step S15 and the operating frequency HZ is determined so that the said temperature difference (DELTA) T may become small.
And it progresses to step S16 and humidification operation control is performed. In this humidifying operation control, the first bypass solenoid valve 111 and the second solenoid valve 114 are opened, the second bypass solenoid valve 112 and the first bypass solenoid valve 113 are closed, and the first heat exchanger 93 is bypassed. . When the four-way switching valve 92 is switched to the solid line position and the compressor 91 is operated, the refrigerant discharged from the compressor 91 is condensed only by the second heat exchanger 94 as a condenser, The pressure is reduced by the 1 expansion valve 95. The decompressed refrigerant evaporates in the third heat exchanger 96 as an evaporator, and then returns to the suction side of the compressor 91 via the accumulator 97. Then, the indoor air from the fan 84 is blown into the room through the hydrophobic porous module 81. At this time, the hydrophobic porous module 81 removes the hydrophobic porous film of the cylinder 81a from the hot water passing through the cylinder 81a. Then, water vapor is released from the fan 84 to the air supplied via the first heat exchanger 93 to perform humidification.
Next, it progresses to step S17, and if it is judged that relative humidity difference (DELTA) RH is below zero, it will return to step S11 and will repeat step S11-S17. On the other hand, if it is determined in step S17 that the relative humidity difference ΔRH is a positive value, this process ends.
[0104]
[Deodorized single operation]
In the deodorizing single operation, the room odor concentration N1 detected by the odor sensor 102 on the remote controller 87 side is read in step S21 shown in FIG.
In step S22, the water temperature T1 of the hydrophobic porous module 81 detected by the temperature sensor 104 is read.
Next, the process proceeds to step S23, and an odor concentration difference ΔN (= N1−N0) between the room odor concentration N1 and the required odor concentration N0 is obtained.
In step S24, the target cooling water temperature T0c is determined based on the odor concentration difference ΔN, and the temperature difference ΔT (= T1−T0c) between the water temperature T1 of the hydrophobic porous module 1 and the target cooling water temperature T0c is determined. Ask.
Next, it progresses to step S25 and the operating frequency HZ is determined so that the said temperature difference (DELTA) T may become small.
And it progresses to step S26 and deodorizing operation control is performed. In this deodorizing operation control, the first bypass solenoid valve 111 and the second solenoid valve 114 are opened, the second bypass solenoid valve 112 and the first bypass solenoid valve 113 are closed, and the first heat exchanger 93 is bypassed. . When the four-way switching valve 92 is switched to the dotted line position and the compressor 91 is operated, the refrigerant discharged from the compressor 91 is condensed in the third heat exchanger 96 as a condenser, and then the first The pressure is reduced by the expansion valve 95. The decompressed refrigerant evaporates only by the second heat exchanger 94 as an evaporator, and then returns to the suction side of the compressor 91 via the accumulator 97. Then, the indoor air from the fan 84 is blown into the room through the hydrophobic porous module 81. At this time, in the hydrophobic porous module 81, the odor component (or gas component) of the air supplied from the fan 84 is discharged. The odor is absorbed through the hydrophobic porous membrane of the cylinder 81a and absorbed by the cold water in the cylinder 81a.
Next, it progresses to step S27, and if it is judged that odor density difference (DELTA) N is a positive value, it will return to step S21 and will repeat step S21-S27. On the other hand, if it is determined in step S27 that the odor concentration difference ΔN is equal to or less than zero, this process is terminated.
[0105]
[Cooling and humidification combined operation]
In the cooling and humidification combined operation, first, the room temperature t1 detected by the room temperature sensor 103 on the remote controller 87 side is read in step S31 shown in FIG.
In step S32, the relative humidity RH1 detected by the humidity sensor 103 on the remote controller 87 is read.
In step S33, the water temperature T1 of the hydrophobic porous module 81 detected by the temperature sensor 104 is read.
Next, the process proceeds to step S34, in which an indoor temperature difference Δt (= t1−t0) between the indoor temperature t1 and the required indoor temperature t0 is obtained, and a relative humidity difference ΔRH () between the indoor relative humidity RH1 and the required relative humidity RH0. = RH1-RH0).
Next, proceeding to step S35, the target heating water temperature T0h is determined based on the relative humidity difference ΔRH, and the temperature difference ΔT between the water temperature T1 of the hydrophobic porous module 1 and the target heating water temperature T0h is obtained.
Next, it progresses to step S36 and the operating frequency HZ is determined so that the said temperature difference (DELTA) T may become small.
And it progresses to step S37 and air conditioning humidification combined operation control is performed. In this cooling and humidification combined operation control, the first bypass solenoid valves 111 and 113 are closed and the second bypass solenoid valves 112 and 114 are opened, and “(3-2) Cooling and humidification combined operation” of the sixth embodiment is performed. ”Is performed.
Next, the process proceeds to step S38, and if it is determined that the indoor temperature difference Δt is a positive value or the relative humidity difference ΔRH is less than or equal to zero, the process returns to step S31, and steps S31 to S38 are repeated. On the other hand, if it is determined in step S38 that the indoor temperature difference Δt is equal to or less than zero and the relative humidity difference ΔRH is a positive value, this process is terminated.
[0106]
[Cooling and deodorization combined operation]
In the combined cooling and deodorizing operation, the room temperature t1 detected by the room temperature sensor 103 on the remote controller 87 side is read in step S41 shown in FIG.
In step S42, the room odor concentration N1 detected by the odor sensor 102 on the remote control 87 side is read.
In step S43, the water temperature T1 of the hydrophobic porous module 81 detected by the temperature sensor 104 is read.
In step S44, a room temperature difference Δt (= t1−t0) between the room temperature t1 and the required room temperature t0 is obtained and an odor density difference ΔN () between the room odor density N1 and the required odor density N0. = N1-N0).
In step S45, the target cooling water temperature T0c is determined based on the odor concentration difference ΔN, and the temperature difference ΔT between the water temperature T1 of the hydrophobic porous module 1 and the target cooling water temperature T0c is obtained.
Next, it progresses to step S46 and the operating frequency HZ is determined so that the said temperature difference (DELTA) T may become small.
And it progresses to step S47 and air-conditioning deodorization combined operation control is performed. In this cooling and deodorization combined operation control, the first bypass solenoid valves 111 and 113 are closed and the second bypass solenoid valves 112 and 114 are opened, and “(2-1) Cooling deodorization combined operation” of the fifth embodiment is performed. ”Is performed.
Next, the process proceeds to step S48, and if it is determined that the indoor temperature difference Δt is a positive value or the odor concentration difference ΔN is a positive value, the process returns to step S41, and steps S41 to S48 are repeated. On the other hand, if it is determined in step S48 that the indoor temperature difference Δt is not greater than zero and the odor concentration difference ΔN is not greater than zero, this process is terminated.
[0107]
In the first to seventh embodiments, an air conditioner having a humidifying function using a hydrophobic porous module 1 (21, 41, 61, 81) having a plurality of cylinders and headers connecting both ends of the cylinders is described. However, the configuration of the porous module is not limited to this, and any configuration may be used as long as the space in the water storage tank to which water is supplied is formed by a hydrophobic porous membrane.
[0108]
Moreover, in the said 1st-7th embodiment, although the humidification operation and the deodorizing operation were performed by switching the heating function and the cooling function of the heat pump circuit, it has a humidification function for performing only the humidification operation using the heating capability of the heat pump circuit. You may apply this invention to an air conditioner.
[0109]
【The invention's effect】
As is clear from the above, the air conditioner having the humidifying function of the invention of claim 1 includes a water storage tank, and a porous module in which a space to which water is supplied in the water storage tank is formed by a hydrophobic porous film, A heat pump circuit comprising: a first heat exchanger that heats indoor air supplied to the porous module; and a second heat exchanger that heats water supplied to the porous module or water in the porous module. It is equipped The first heat exchanger and the second heat exchanger of the heat pump circuit have a cooling function in addition to the heating function. .
[0110]
Therefore, according to the air conditioner having the humidifying function of the first aspect of the present invention, the air heated by the first heat exchanger is blown into the room through the perforated module to perform heating, and the second heat exchange. Since it is possible to humidify by releasing water vapor from the warm water heated by the vessel through the hydrophobic porous membrane of the porous module into the air, humidification that can reduce power consumption by using a heat pump circuit with high thermal efficiency An air conditioner having a function can be realized.
[0111]
Also , By using water cooled by a heat pump circuit with good thermal efficiency, an excellent deodorizing function with high energy saving effect can be provided.
[0112]
Claims 2 An air conditioner having a humidifying function of 1's In the air conditioner having a humidifying function, the second heat exchanger of the heat pump circuit is arranged in the water storage tank, so that the water in the water storage tank can be efficiently heated and the second heat exchanger of the upper heat pump circuit is cooled. When it has a function, the water in a water storage tank can be cooled efficiently.
[0113]
Claims 3 An air conditioner having a humidifying function of 1's In the air conditioner having a humidifying function, the second heat exchanger of the heat pump circuit is disposed in the water storage space provided in the perforated module. Therefore, the first and the second heat exchangers are disposed in the water storage tank rather than the second heat exchanger. 2 The length of the pipe connected to the heat exchanger can be shortened, the structure can be simplified and the cost can be reduced. In addition, since the heat in the water storage space of the porous module is directly heated without any heat loss due to the pump, piping, etc., the efficiency is further improved, and the porous module can be used even when the second heat exchanger of the heat pump circuit has a cooling function. Since the water in the space is directly cooled, the efficiency is improved.
[0114]
Claims 4 An air conditioner having a humidifying function of 1's In the air conditioner having a humidification function, a double pipe heat exchanger disposed in a pipe between the water storage tank and the porous module is used as the second heat exchanger of the heat pump circuit. It becomes possible to arrange | position a 2nd heat exchanger, and can simplify a structure and can reduce cost.
[0115]
Claims 5 An air conditioner having a humidifying function of 1's In the air conditioner having a humidifying function, by disposing the second heat exchanger in the water storage tank by disposing the second heat exchanger of the heat pump circuit in the space formed by the hydrophobic porous membrane of the porous module. The pump and the pump connection pipe can be removed, the structure can be simplified and the cost can be reduced. In addition, there is no heat loss due to pumps, piping, etc., and water in the space formed by the hydrophobic porous membrane of the porous module is directly heated, so the difference between hot water temperature and condensation temperature can be reduced, further improving efficiency Even when the second heat exchanger of the heat pump circuit has a cooling function, the efficiency is improved because water in the space of the porous module is directly cooled.
[0116]
Claims 6 The air conditioner having the humidifying function of the invention of claim 1 to claim 1 5 In the air conditioner having any one of the humidifying functions, a fan for supplying indoor air to the porous module is provided, and the first heat exchanger is disposed on the windward side of the porous module, thereby providing a first heat exchanger. Since room air heated or cooled by the exchanger is supplied to the porous module, the efficiency of humidification or deodorization by the porous module is improved.
[0117]
Claims 7 The air conditioner having the humidifying function of the invention of claim 1 to claim 1 6 In the air conditioner having any one of the humidifying functions, the water in the water storage tank is continuously supplied to the porous module by circulating the water in the water storage tank with a pump through the flow path of the porous module. It is possible to suppress the increase in the concentration of odorous components absorbed in the water in the porous module during deodorization.
[0118]
Claims 8 The air conditioner having the humidifying function of the invention of claim 1 to claim 1 7 In the air conditioner having any one of the humidifying functions, water can be exchanged by using water supply means for supplying water into the water storage tank and drainage means for discharging water in the water storage tank. In the humidification operation, the concentration of hard components can be prevented from becoming excessively high and the scale can be prevented from being generated. When the second heat exchanger of the heat pump circuit has a cooling function, the concentration of odorous components becomes too high due to the deodorization operation. Thus, the deodorizing ability can be prevented from decreasing.
[0119]
Claims 9 An air conditioner having a humidifying function of 1 A heat pump circuit which is a refrigerant circuit formed by at least a compressor, a four-way switching valve, a first heat exchanger, a second heat exchanger, a pressure reducing means, and a third heat exchanger By this, water (or water in the porous module) supplied to the porous module can be heated and cooled.
[0120]
Claim 1 0 An air conditioner having a humidifying function of 9 In the air conditioner having the humidifying function, the first expansion valve as the pressure reducing means is fully opened, and the second expansion valve disposed between the first heat exchanger and the second heat exchanger is opened. By reducing the degree, the first heat exchanger is used as a condenser, the second heat exchanger and the third heat exchanger are used as evaporators, the indoor heat is heated by the first heat exchanger, and heating is performed. It becomes possible to deodorize by cooling water (or water in the porous module) supplied to the porous module by the two heat exchangers. In addition, the second heat exchanger and the third heat exchanger are used as condensers, the first heat exchanger is used as an evaporator, indoor air is cooled by the first heat exchanger, and the second heat exchanger is cooled. As a result, the water supplied to the porous module (or the water in the porous module) can be heated and humidified.
[0121]
Claim 1 1 An air conditioner having a humidifying function of 9 In the air conditioner having the humidifying function, the first heat exchanger is bypassed by bypass means so that the first heat exchanger is not used, the second heat exchanger is a condenser, and the third heat Using the exchanger as an evaporator, the water (or the water in the porous module) supplied to the porous module by the second heat exchanger is heated and humidified only, and the first heat exchanger is not used. Using the heat exchanger as a condenser and the second heat exchanger as an evaporator, the water (or the water in the porous module) supplied to the porous module by the second heat exchanger can be cooled and deodorized only. There is no heat loss due to the first heat exchanger, and the efficiency is improved.
[0122]
Claim 1 2 An air conditioner having a humidifying function according to the present invention is the first aspect. 1 In the air conditioner having a humidifying function, the first bypass solenoid valve disposed in the bypass pipe is opened, and the second bypass solenoid valve is closed to stop the flow of the refrigerant in the first heat exchanger. Thus, while bypassing the first heat exchanger, when not bypassing the first heat exchanger, the first bypass solenoid valve is closed and the second bypass solenoid valve is opened. Accordingly, the first heat exchanger can be bypassed with a simple configuration so that the refrigerant does not flow.
[0123]
Claim 1 3 An air conditioner having a humidifying function of 9 In the air conditioner having the humidifying function, the second heat exchanger is bypassed by the bypass means, so that the second heat exchanger is not used, the first heat exchanger is used as a condenser, and the third heat exchanger is used. The exchanger is an evaporator, the room air is heated by the first heat exchanger for heating only, the second heat exchanger is not used, the third heat exchanger is a condenser, and the first heat exchanger is used. As an evaporator, the indoor air can be cooled by the first heat exchanger and only the cooling can be performed, there is no heat loss due to the second heat exchanger, and the efficiency is improved.
[0124]
Claim 1 4 An air conditioner having a humidifying function according to the present invention is the first aspect. 3 In the air conditioner having a humidifying function, the first bypass solenoid valve disposed in the bypass pipe is opened, and the second bypass solenoid valve is closed to stop the flow of the refrigerant in the second heat exchanger. Thus, while bypassing the second heat exchanger, when not bypassing the second heat exchanger, the first bypass solenoid valve is closed and the second bypass solenoid valve is opened. Therefore, the second heat exchanger can be bypassed with a simple configuration, and the refrigerant can be unused.
[0125]
Claim 1 5 An air conditioner having a humidifying function of 9 In the air conditioner having a humidifying function, the water in the water storage tank is supplied to the porous module by controlling the compressor of the heat pump circuit, the four-way switching valve, the first expansion valve, and the second expansion valve by the control unit. Without cooling, the cooling unit is operated by cooling the indoor air by the first heat exchanger of the heat pump circuit, and the water supplied to the porous module by the second heat exchanger of the heat pump circuit (or in the porous module). The water is supplied to the perforated module by the cooling and deodorizing combined operation in which the first heat exchanger of the heat pump circuit cools and cools the air by cooling the room air, and the second heat exchanger of the heat pump circuit. (Or water in the perforated module) is cooled and deodorized prior to cooling while limiting the cooling capacity of the first heat exchanger of the heat pump circuit An air conditioner having a humidification function for performing deodorization priority operation can be realized.
[0126]
Claim 1 6 An air conditioner having a humidifying function of 9 In the air conditioner having a humidifying function, the water in the water storage tank is supplied to the porous module by controlling the compressor of the heat pump circuit, the four-way switching valve, the first expansion valve, and the second expansion valve by the control unit. Without heating, the heating alone operation of heating the indoor air by heating the first heat exchanger of the heat pump circuit and the water supplied to the porous module by the second heat exchanger of the heat pump circuit (or in the porous module) Heating and humidifying combined operation of heating and heating indoor air by the first heat exchanger of the heat pump circuit, and water supplied to the porous module by the second heat exchanger of the heat pump circuit (or porous) It is possible to realize an air conditioner having a humidifying function for performing a deodorizing single operation for cooling and deodorizing water in the module.
[Brief description of the drawings]
FIG. 1 is a schematic configuration diagram of an air conditioner having a humidifying function according to a first embodiment of the present invention.
FIG. 2 is a schematic configuration diagram of an air conditioner having a humidifying function according to a second embodiment of the present invention.
FIG. 3 is a schematic configuration diagram of an air conditioner having a humidifying function according to a third embodiment of the present invention.
FIG. 4 is a schematic configuration diagram of an air conditioner having a humidifying function according to a fourth embodiment of the present invention.
FIG. 5 is a view of the main part of the hydrophobic porous module of the air conditioner having the humidifying function as viewed from above.
FIG. 6 is a perspective view showing a state in which a heat transfer tube of a second heat exchanger is arranged in the hydrophobic porous module.
FIG. 7 is a view showing a state in which a metal sheet is wound around a heat transfer tube of the second heat exchanger in a band shape.
FIG. 8 is a schematic configuration diagram of an air conditioner having a humidifying function according to a fifth embodiment of the present invention.
FIG. 9 is a schematic configuration diagram of an air conditioner having a humidifying function according to a sixth embodiment of the present invention.
FIG. 10 is a schematic configuration diagram of an air conditioner having a humidifying function according to a seventh embodiment of the present invention.
FIG. 11 is a flowchart for explaining the operation of the air conditioner having the humidifying function.
FIG. 12 is a flowchart for explaining the operation of humidification single operation following FIG. 11;
FIG. 13 is a flowchart for explaining the operation of the deodorizing single operation following FIG.
FIG. 14 is a flowchart for explaining the operation of the cooling and humidifying combined operation following FIG. 11;
FIG. 15 is a flowchart for explaining the operation of the combined cooling and deodorizing operation subsequent to FIG.
FIG. 16 is a diagram showing a characteristic of Henry's constant with respect to a change in temperature.
[Explanation of symbols]
1, 21, 41, 61, 81 ... hydrophobic porous module,
2,22,42,62,82 ... Water tank,
3, 43, 83 ... pump,
4,24,44,64,84 ... Fan,
5, 25, 45, 65 ... float switch,
6, 26, 46, 66, 86 ... solenoid valve for drainage,
11, 31, 51, 71, 91 ... compressor,
12, 32, 52, 72, 92 ... four-way switching valve,
13, 33, 53, 73, 93 ... the first heat exchanger,
14, 34, 54, 74, 94 ... the second heat exchanger,
15, 35, 55, 75 ... expansion valve,
16, 36, 56, 76, 96 ... the third heat exchanger,
17, 37, 57, 77, 97 ... Accumulator,
18,38,58,78,98 ... Fan,
85 ... Solenoid valve for drainage,
87 ... Remote control,
88. Control unit,
95: first expansion valve,
100: Water level sensor,
101 ... Humidity sensor,
102 ... smell sensor,
103. Indoor temperature sensor,
104 ... temperature sensor,
110 ... second expansion valve,
111-114 ... Solenoid valve,
L1, L2, L11, L31, L32, L41, L51, L52 ... piping,
L3, L13, L33, L43, L53 ... water supply piping,
L4, L12, L34, L42, L54 ... Drainage piping,
L61, L62 ... Bypass piping.

Claims (16)

A water storage tank ( 2 ) ,
A porous module ( 1 ) in which a water supply space in the water storage tank ( 2 ) is formed by a hydrophobic porous membrane ;
The first heat exchanger to heat or cool the indoor air (13), the porous module (1) second heat exchanger for heating the water in the water or the porous module is supplied (1) to (14) In an air conditioner having a humidifying function provided with a heat pump circuit having
The air conditioner having a humidifying function, wherein the second heat exchanger of the heat pump circuit has a cooling function in addition to a heating function. In the air conditioner having a humidifying function according to claim 1 ,
An air conditioner having a humidifying function, wherein the second heat exchanger (14) of the heat pump circuit is disposed in the water storage tank (2). In the air conditioner having a humidifying function according to claim 1 ,
An air conditioner having a humidifying function, wherein the second heat exchanger (14) of the heat pump circuit is disposed in a water storage space provided in the porous module (1). In the air conditioner having a humidifying function according to claim 1 ,
The second heat exchanger of the heat pump circuit is a double pipe heat exchanger (54) disposed in a pipe between the water storage tank (2) and the porous module (1). Air conditioner with humidification function. In the air conditioner having a humidifying function according to claim 1 ,
An air conditioner having a humidifying function, wherein the second heat exchanger of the heat pump circuit is disposed in a space (61d) formed by the hydrophobic porous membrane of the porous module (1). The air conditioner having a humidifying function according to any one of claims 1 to 5 ,
A fan (4) for supplying indoor air to the porous module (1);
An air conditioner having a humidifying function, wherein the first heat exchanger (13) is arranged on the windward side of the porous module (1). The air conditioner having a humidifying function according to any one of claims 1 to 6 ,
An air conditioner having a humidifying function, comprising a pump (3) for circulating water in the water storage tank (2) through a flow path of the porous module (1). The air conditioner having a humidifying function according to any one of claims 1 to 7 ,
Water supply means for supplying water into the water storage tank (2);
An air conditioner having a humidifying function, comprising a drainage means for discharging water in the water storage tank (2). In the air conditioner having a humidifying function according to claim 1 ,
The heat pump circuit includes at least a compressor (91), a four-way switching valve (92), the first heat exchanger (93), the second heat exchanger (94), a pressure reducing means (95), and a third heat. An air conditioner having a humidifying function, wherein the air conditioner is a refrigerant circuit formed by an exchanger (96). The air conditioner having a humidifying function according to claim 9 ,
The pressure reducing means (95) is a first expansion valve,
An air conditioner having a humidifying function, wherein a second expansion valve (110) is disposed between the first heat exchanger (93) and the second heat exchanger (94) of the heat pump circuit. . The air conditioner having a humidifying function according to claim 9 ,
An air conditioner having a humidifying function, comprising bypass means for bypassing both ends of the first heat exchanger (93). In the air conditioner having a humidifying function according to claim 1 1,
The bypass means is
Bypass piping (L61) connected to both sides of the first heat exchanger (93);
A first bypass solenoid valve (111) disposed in the bypass pipe (L61);
And a second bypass solenoid valve (112) for stopping the flow of the refrigerant in the first heat exchanger (93) when the first bypass solenoid valve (111) is opened. Air conditioner with function. The air conditioner having a humidifying function according to claim 9 ,
An air conditioner having a humidifying function, comprising bypass means for bypassing both ends of the second heat exchanger (94). In the air conditioner having a humidifying function according to claim 1 3,
The bypass means is
A bypass pipe (L62) connected to both sides of the second heat exchanger (94);
A first bypass solenoid valve (113) disposed in the bypass pipe (L62);
And a second bypass solenoid valve (114) for stopping the flow of the refrigerant in the second heat exchanger (94) when the first bypass solenoid valve (113) is opened. Air conditioner with function. The air conditioner having a humidifying function according to claim 9 ,
Cooling single operation for cooling the indoor air by the first heat exchanger (93) of the heat pump circuit without supplying the water in the water storage tank (82) to the porous module (81);
The water supplied to the porous module (81) or the water in the porous module (81) is cooled and deodorized by the second heat exchanger (94) of the heat pump circuit, and the first of the heat pump circuit is deodorized. Cooling and deodorizing combined operation for cooling indoor air by cooling with a heat exchanger (93),
The water supplied to the porous module (81) or the water in the porous module (81) is cooled by the second heat exchanger (94) of the heat pump circuit, and the first heat exchanger of the heat pump circuit is cooled. (93) while limiting the cooling capacity, so as to perform deodorization priority operation that deodorizes preferentially over cooling,
And a controller (88) for controlling the compressor (91), the four-way switching valve (92), the first expansion valve (95), and the second expansion valve (110) of the heat pump circuit. Air conditioner with humidification function. The air conditioner having a humidifying function according to claim 9 ,
A single heating operation for heating the indoor air by heating the indoor heat by the first heat exchanger (93) of the heat pump circuit without supplying the water in the water storage tank (82) to the porous module (81);
The water supplied to the porous module (81) or the water in the porous module (81) is heated and humidified by the second heat exchanger (94) of the heat pump circuit, and the first of the heat pump circuit is heated. Heating / humidifying combined operation for heating indoor air by heating with a heat exchanger (93),
The compressor (91) of the heat pump circuit is stopped, and the deodorizing single operation for deodorizing water supplied to the porous module (81) is performed.
And a controller (88) for controlling the compressor (91), the four-way switching valve (92), the first expansion valve (95), and the second expansion valve (110) of the heat pump circuit. Air conditioner with humidification function.

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