JP2004156791A

JP2004156791A - Facility system and its construction method

Info

Publication number: JP2004156791A
Application number: JP2002319851A
Authority: JP
Inventors: Masaya Tachibana; 雅哉橘; Yoshiaki Kokubo; 吉章小久保; Fumito Sato; 文人佐藤
Original assignee: Shimizu Construction Co Ltd; Shimizu Corp
Current assignee: Shimizu Construction Co Ltd; Shimizu Corp
Priority date: 2002-11-01
Filing date: 2002-11-01
Publication date: 2004-06-03

Abstract

<P>PROBLEM TO BE SOLVED: To construct a facility system attaining energy saving by dispensing with an outdoor unit for an air conditioner, a gas water heater and gas piping, and reducing the power consumption for floor heating. <P>SOLUTION: Air conditioner indoor units 8 are arranged in a plurality of living rooms 2 provided in a building 1, and air conditioner heat source machines 11 for heating or cooling a refrigerant through air conditioner refrigerant pipelines 13 circulating the refrigerant are connected to the air conditioner indoor units 8. A floor heating panel 9 is disposed under the floor of the living room 2, and a floor heating heat source machine 11 for heating warm water through a warm water circulating pipeline 14 for circulating warm water is connected to the floor heating panel 9. A hot water storage tank 10 is disposed in the living room 2, and a hot water storage tank heat source machine 12 for heating water through a hot water supply pipeline 15 for supplying hot water is connected to the hot water storage tank 10. A common heat source water pipeline 6 for circulating heated or cooled heat source water is connected to the air conditioner heat source machine 11, floor heating heat source machine 11 and hot water storage tank heat source machine 12. <P>COPYRIGHT: (C)2004,JPO

Description

【０００１】
【発明の属する技術分野】
本発明は、省スペース、高い安全性、省コストをはかる設備システムであり、新築の集合住宅及び事務所用建築物から集合住宅用建築物へ改修する場合の設備システムとその構築方法に関する。
【０００２】
【従来の技術】
近年、集合住宅においては、スペースを有効に利用する事が最大のポイントであり、また災害時の安全性の確保も重要な課題である。また、既存の建築物を用途変更や老朽化のために改修する場合が多くなっている。かかる改修において、主に問題となるのは、改修工事に必要な材料の運搬方法や改修工事に伴い発生する廃材の搬出方法、或いは改修工事に伴う振動や騒音による周辺環境への影響の軽減等である。このような問題を解決するために、種々の工法等が開発されている（例えば、特許文献１参照。）。
【０００３】
【特許文献１】
特開２００２−１４７０３０号公報（第３−４頁、第１図）
【０００４】
【発明が解決しようとする課題】
しかしながら、従来の工法等において、省スペース及び安全性の確保に着目した設備システムや事務所用建築物から集合住宅用建築物に改修する場合の設備システムの問題を取り挙げたものはない。高層、超高層の集合住宅や事務所用建築物から集合住宅用建築物に改修する場合の設備システムの問題には以下のような事項が挙げられる。
【０００５】
まず、エアコンの室外機の設置場所となり得るスペースが限られており、集合住宅用建築物の複数の居室毎に設置されるエアコンの室外機の設置場所を確保するのが困難であることである。また、床暖房を電気式床暖房によると電力消費量が増加する。また、ガス湯沸し機の設置場所が限られているとともに、屋内に給湯用のガス配管が一部しか配管されていないため複数の居室全てに対してガス配管を配設する必要がある。また、住戸内のガスの使用は、万一の際の安全性が電気ほど高くない。
【０００６】
本発明は、以上の問題が考慮されたものであり、エアコンの室外機が不要であるとともに、ガス湯沸し機およびガス配管が不要である設備システムとその構築方法を提供することを目的としている。また、床暖房の電力消費量を軽減することで省エネルギーを図ることが可能な建築物の改修に伴う設備システムとその構築方法を提供することを目的としている。
【０００７】
【課題を解決するための手段】
請求項１記載の発明は、建築物内に設けられた複数の居室の中にエアコン室内機と床暖房パネルと貯湯槽とを設置し、前記エアコン室内機に冷媒を流通させるエアコン冷媒配管を介して前記冷媒を加熱又は冷却する前記エアコン熱源機を接続し、前記床暖房パネルに温水を循環させる温水循環配管を介して前記温水を加熱する床暖房熱源機を接続し、前記貯湯槽に湯を供給する給湯配管を介して水を加熱する貯湯槽熱源機を接続し、前記エアコン熱源機、前記床暖房熱源機及び前記貯湯槽熱源機に、加熱又は冷却された熱源水が流通する共通の熱源水配管をそれぞれ接続することを特徴としている。
【０００８】
請求項２記載の発明は、建築物内には複数の居室が設けられ、該居室内にはエアコン室内機が配置され、該エアコン室内機には冷媒を流通させるエアコン冷媒配管を介して前記冷媒を加熱又は冷却する前記エアコン熱源機が接続され、前記居室の床下には床暖房パネルが配置され、該床暖房パネルには温水を循環させる温水循環配管を介して前記温水を加熱する床暖房熱源機が接続され、前記居室内には貯湯槽が配置され、該貯湯槽には湯を供給する給湯配管を介して水を加熱する貯湯槽熱源機が接続され、前記エアコン熱源機、前記床暖房熱源機及び前記貯湯槽熱源機には、加熱又は冷却された熱源水が流通する共通の熱源水配管が接続されていることを特徴としている。
【０００９】
このような特徴により、エアコン熱源機内で熱源水と冷媒との熱交換を行い、エアコン室内機に加熱された冷媒または冷却された冷媒を送る。また、床暖房熱源機内で熱源水と温水との熱交換を行い、床暖房パネル内に加熱された温水を送る。さらに、貯湯槽熱源機内で熱源水を利用し、例えば冷媒を介して水を加熱して湯を沸かし、この湯を貯湯槽内に送る。
【００１０】
請求項３記載の発明は、請求項２記載の設備システムにおいて、前記建築物の屋上には、前記熱源水を加熱する温熱源と前記熱源水の熱を放散させる冷熱源とが配置され、前記温熱源と前記冷熱源とは前記熱源水配管に接続されていることを特徴としている。
【００１１】
このような特徴により、熱源水を温熱源によって加熱し、または、熱源水を冷熱源によって冷却する。
【００１２】
請求項４記載の発明は、請求項２記載の設備システムにおいて、前記熱源水配管には冷水熱交換器と温水熱交換器とがそれぞれ接続され、該冷水熱交換器は冷水導管を介して前記建築物の周辺地域に配設されている冷水還管または冷水往管に接続され、前記温水熱交換器は温水導管を介して前記建築物の周辺地域に配設されている温水還管または温水往管に接続されていることを特徴としている。
【００１３】
このような特徴により、周辺地域に配設されている冷水還管内または冷水往管内に流通する地下冷水と熱源水とを冷水熱交換器によって熱交換をして熱源水を冷却する。または、周辺地域に配設されている温水還管内または温水往管内に流通する温水と熱源水とを温水熱交換器によって熱交換をして熱源水を加熱する。
【００１４】
請求項５記載の発明は、請求項２から４のいずれかに記載の設備システムにおいて、前記エアコン熱源機と前記床暖房熱源機とは共用熱源機によって集約され、該共用熱源機は、前記冷媒を圧縮する圧縮機と、前記冷媒と前記熱源水との間で熱交換を行う熱源水熱交換器と、前記冷媒と前記温水との間で熱交換を行う床暖房熱交換器と、前記圧縮機により圧縮された前記冷媒の流路方向を前記熱源水熱交換器方向と床暖房熱交換器方向とのうち択一的にいずれか一方に、又は両方に切換える切換弁とから構成されていることを特徴としている。
【００１５】
このような特徴により、共用熱源機を設置するスペースを確保すれば、エアコン熱源機と床暖房熱源機とを設置するスペースは不要となる。また、共用熱源機内での熱回収が可能となる。
【００１６】
【発明の実施の形態】
以下、本発明に係る設備システムとその構築方法の第１、第２、第３の実施の形態について、図面に基づいて説明する。
【００１７】
〈第１の実施の形態〉
本発明の第１の実施の形態について説明する。
【００１８】
図１において符号１は、その用途を事務所から集合住宅ヘ変更した複数の階層からなる建築物である。建築物１には、人間の生活空間を形成する居室２が各階毎に複数設けられているとともに、最下階から最上階まで連通されたパイプシャフト３が設けられている。また、建築物１の屋上には、ガス温水器や空冷ヒートポンプ等の熱源水を加熱する温熱源４と密閉式冷却塔等の熱源水の熱を放散させて冷却する冷熱源５とがそれぞれ設けられており、温熱源４と冷熱源５とは熱源水が流通する熱源水配管６に直列にそれぞれ介装されている。冷熱源５の隣りで温熱源４の反対側の熱源水配管６には、熱源水を循環させるポンプ７が介装されている。
【００１９】
熱源水配管６は、温熱源４または冷熱源５によって加熱又は冷却された熱源水を送り出す熱源水往管６ａと、熱源水を温熱源４または冷熱源５に戻す熱源水還管６ｂとから構成されている。熱源水往管６ａと熱源水還管６ｂとは、パイプシャフト３の中にそれぞれ鉛直に配置され、パイプシャフト３の中で各階の各居室２にそれぞれ分岐されている。
【００２０】
図２に示すように、居室２の中には、居室２内の空気の温度を調節するエアコン室内機８と、居室２内の床を暖める床暖房パネル９と、生活用の湯を貯留する貯湯槽１０と、冷媒を加熱又は冷却するとともに温水を加熱する共用熱源機１１と、ヒートポンプを利用して水を加熱して湯にする貯湯槽熱源機１２とが設けられている。
【００２１】
エアコン室内機８と共用熱源機１１とは、冷媒が流通するエアコン冷媒配管１３を介して接続されている。床暖房パネル９と共用熱源機１１とは、温水が流通する温水循環配管１４を介して接続されている。貯湯槽１０と貯湯槽熱源機１２とは、貯湯槽熱源機１２によって加熱された湯を貯湯槽１０に送る給湯配管１５を介して接続されている。共用熱源機１１及び貯湯槽熱源機１２には、パイプシャフト３で分岐され各居室にそれぞれ配設されている熱源水往管６ａと熱源水還管６ｂとがそれぞれ接続されている。
【００２２】
図３に示すように、共用熱源機１１は、冷媒を圧縮する圧縮機１６と、冷媒と熱源水配管６内を流通する熱源水との間で熱交換を行う熱源水熱交換器１７と、冷媒と温水循環配管１４内を流通する温水との間で熱交換を行う床暖房熱交換器１８と、圧縮機１６により圧縮された冷媒の流路方向を切換える切換弁１９とから構成されている。
【００２３】
また、エアコン室内機８内には、エアコン冷媒配管１３内を流通する冷媒と居室２内の空気との間で熱交換を行うエアコン熱交換器２０が付設されており、エアコン冷媒配管１３は、第１のエアコン冷媒配管１３ａと第２のエアコン冷媒配管１３ｂとから構成されている。
【００２４】
圧縮機１６と切換弁１９とは、圧縮機１６から切換弁１９へ冷媒を流通させる第１の冷媒経路２１および切換弁１９から圧縮機１６へ冷媒を流通させる第２の冷媒経路２２を介して接続されており、切換弁１９と熱源水熱交換器１７とは、第３の冷媒経路２３を介して接続されている。また、熱源水熱交換器１７とエアコン熱交換器２０とは、第１のエアコン冷媒配管１３ａを介して接続されており、エアコン熱交換器２０と切換弁１９とは、第２のエアコン冷媒配管１３ｂを介して接続されている。切換弁１９と床暖房熱交換器１８とは、第４の冷媒経路２４を介して接続されており、床暖房熱交換器１８と第１のエアコン冷媒配管１３ａの中間部とは、第５の冷媒経路２５を介して接続されている。また、床暖房熱交換器１８には、床暖房パネル９内に配設された温水循環配管１４の両端が接続されている。
【００２５】
なお、符号２６はアキュムレータ、符号２７はキャピラリーチューブ、符号２８はストレーナー、符号２９はマフラ、符号３０は過冷却コイル、符号３１は逆止弁、符号３２は弁、符号３３は温水ポンプ、符号３４は膨張タンクをそれぞれ示すものである。また、図２において、符号３５は熱源水の流通を止める仕切弁である。
【００２６】
次に、上記した第１の実施の形態の設備システムの使用方法について、夏期運転（エアコン運転）と冬期運転（床暖房運転）とに区分けして説明する。
【００２７】
〔夏期運転〕
エアコン室内機８を稼動させる場合について説明する。なお、図３における白抜きの矢印は、この場合の冷媒の流れを示すものである。
【００２８】
図２に示すように、冷熱源５を起動させるとともに温熱源４を停止して、ポンプ７の圧力によって熱源水配管６内を循環している熱源水の冷却を行う。熱源水配管６に設けられた仕切弁３５を開状態にして、冷却された熱源水を熱源水往管６ａから図３に示す熱源水熱交換器１７内に流入させる。
【００２９】
一方、図３に示すように、共用熱源機１１内に設けられた圧縮機１６によって圧縮機１６内の冷媒を圧縮する。この冷媒は、主としてアンモニアや弗化ハロゲン化炭化水素（フロン）等が用いられる。圧縮された冷媒は、第１の冷媒経路２１内を流通して切換弁１９に至る。切換弁１９によって冷媒の流路方向を切換え、圧縮された冷媒を第３の冷媒経路２３に送る。この圧縮された冷媒は、第３の冷媒経路２３内を流通し、熱源水熱交換器１７を至る。
【００３０】
熱源水熱交換器１７内において、冷却された熱源水と圧縮された冷媒との間で熱交換を行い、冷媒の熱を熱源水に伝えて冷媒の冷却を行う。冷却された冷媒は、熱源水熱交換器１７内から第１のエアコン冷媒配管１３ａ内に流入する。冷却された冷媒は第１のエアコン冷媒配管１３ａ内を流通し、過冷却コイル３０、キャピラリーチューブ２７、ストレーナー２８、弁３２を経由して、エアコン熱交換器２０に至る。また、冷媒から熱を享受した熱源水は、熱源水交換器１７から熱源水還管６ｂに流出する。
【００３１】
エアコン熱交換器２０において、第１のエアコン冷媒配管１３ａ内から流入した冷却された冷媒と居室２内の空気との間で熱交換を行い、空気の熱を冷媒に伝えて空気の冷却を行う。この空気は冷却されることで冷気となり、この冷気を居室２内に放出し、エアコン室内機８は稼動する。空気の熱を享受した冷媒は、第２のエアコン冷媒配管１３ｂ内に流入し、第２のエアコン冷媒配管１３ｂ内を流通し、弁３２を経由して切換弁１９に至る。切換弁１９によって冷媒の流路方向を切換え、熱を享受した冷媒を第２の冷媒経路２２に送る。この熱を享受した冷媒は、第２の冷媒経路２２内を流通し、アキュムレータ２６を経由して圧縮機１６内に至る。
【００３２】
〔冬期運転〕
床暖房パネル９を暖める場合について説明する。なお、図３における黒塗りの矢印は、この場合の冷媒の流れを示すものである。
【００３３】
図２に示すように、温熱源４を起動させるとともに冷熱源５を停止して、ポンプ７の圧力によって熱源水配管６内を循環している熱源水の加熱を行う。熱源水配管６に設けられた仕切弁３５を開状態にして、加熱された熱源水を熱源水往管６ａから図３に示す熱源水熱交換器１７内に流入させる。
【００３４】
一方、図３に示すように、共用熱源機１１内に設けられた圧縮機１６によって圧縮機１６内の冷媒を圧縮する。圧縮された冷媒は、第１の冷媒経路２１内を流通して切換弁１９に至る。切換弁１９によって冷媒の流路方向を切換え、圧縮された冷媒を第４の冷媒経路２４に送る。この圧縮された冷媒は、第４の冷媒経路２４内を流通し、床暖房熱交換器１８に至る。
【００３５】
床暖房熱交換器１８において、温水循環配管１４内を流通する温水と圧縮された冷媒との間で熱交換を行い、冷媒の熱を温水に伝えて温水の加熱を行う。加熱された温水は、床暖房パネル９内に配設された温水循環配管１４内を流通して床暖房パネル９を暖める。
【００３６】
また、熱を放出した冷媒は床暖房熱交換器１８から第５の冷媒経路２５に流入する。熱を放出した冷媒は第５の冷媒経路２５内を流通し、第１のエアコン冷媒配管１３ａに流入する。熱を放出した冷媒は、第１のエアコン冷媒配管１３ａ内を流通し、ストレーナー２８、逆止弁３１、過冷却コイル３０を経由して、熱源水熱交換器１７に至る。
【００３７】
熱源水熱交換器１７において、加熱された熱源水と熱を放出した冷媒との間で熱交換を行い、熱源水の熱を冷媒に伝えて冷媒の加熱を行う。加熱された冷媒は熱源水熱交換器１７から第３の冷媒経路２３に流入する。この加熱された冷媒は、第３の冷媒経路２３内を流通し、切換弁１９に至る。切換弁１９によって冷媒の流路方向を切換えて、第２の冷媒経路２２に送る。加熱された冷媒は、第２の冷媒経路２２内を流通し、アキュムレータ２６を経由して圧縮機１６に流入する。また、熱を放出した熱源水は、熱源水熱交換器１７内から熱源水還管６ｂに流出する。
【００３８】
次に、貯湯槽１０内に湯を供給する場合について説明する。
【００３９】
図２に示すように、温熱源４を起動させるとともに冷熱源５を停止して、ポンプ７の圧力によって熱源水配管６内を循環している熱源水の加熱を行う。熱源水配管６に設けられた仕切弁３５を開状態にして、加熱された熱源水を熱源水往管６ａから貯湯槽熱源機１２内に流入させる。
【００４０】
貯湯槽熱源機１２内において、加熱された熱源水と貯湯槽熱源機１２内を循環する冷媒との間で熱交換を行い、熱源水の熱を冷媒に伝えて冷媒を加熱する。この加熱された冷媒は図示せぬ圧縮機により高温、高圧になり、高温高圧の冷媒と貯湯槽熱源機１２内に供給された水との間で熱交換を行い、冷媒の熱を水に伝え、水を加熱して湯を沸かす。この湯は給湯配管１５を介して貯湯槽１０内に流入する。また、熱を放出した熱源水は、熱源水熱交換器１７内から熱源水還管６ｂに流出する。
【００４１】
次に、上記した設備システムの構築方法について説明する。
【００４２】
図２に示すように、事務所用として使用されていた建築物１の屋上に温熱源４と冷熱源５とを設置し、温熱源４と冷熱源５とを建築物１のパイプシャフト３内に設けられた既存の建て配管を利用した熱源水配管６に接続する。
【００４３】
一方、建築物１内を複数に区切り、居室２を形成し、この居室２内にエアコン室内機８と床暖房パネル９と貯湯槽１０とを所定の位置に配置する。また、共用熱源機１１と貯湯槽熱源機１２とを、例えば居室２の天井裏の配管、ダクトスペース等の所定の位置に配置する。エアコン室内機８と共用熱源機１１とをエアコン冷媒配管１３を介して接続するとともに、床暖房パネル９と共用熱源機１１とを温水循環配管１４を介して接続する。さらに、貯湯槽１０と貯湯槽熱源機１２とを給湯配管１５を介して接続する。次に、熱源水配管６を共用熱源機１１と貯湯槽熱源機１２とにそれぞれ接続する。
【００４４】
以上のような構成により、エアコン室内機８を稼動させる際、共通の熱源水配管６内を流通する熱源水と冷媒との間で熱交換が行うことでエアコン室内機８が稼動されるため、エアコン室内機８に対応したエアコン室外機は不要となる。また、床暖房パネルを暖める際、熱源水を利用したヒートポンプによって温水を加熱することで床暖房パネルが暖められるため、電気式床暖房に比べて電気消費量は軽減される。また、貯湯槽１０内に湯を供給する際、共通の熱源水配管６内を流通する熱源水と水との間で熱交換を行うことで湯を供給するため、ガス湯沸し機およびガス配管が不要となる。また、冷媒の加熱又は冷却を行うエアコン熱源機と温水の加熱を行う床暖房熱源機とが集約された共用熱源機１１を使用することで省スペースを図ることができる。
【００４５】
〈第２の実施の形態〉
次に、本発明の第２の実施の形態について説明する。なお、上述した第１の実施の形態と同一の構成要素については、同一の符号を付すことでその説明を省略する。
【００４６】
図４に示すように、熱源水配管６には、冷水と熱源水との間で熱交換を行う冷水熱交換器３６、および温水と熱源水との間で熱交換を行う温水熱交換器３７がそれぞれ介装されている。また、建築物１の周辺の地盤内には、冷水が流通している冷水還管３８と冷水往管３９とが埋設されているとともに、温水が流通している温水還管４０と温水往管４１とが埋設されている。
【００４７】
冷水熱交換器３６は冷水を一端から取り入れ他端から放出する冷水導管４２に介装されており、冷水導管４２の両端は冷水還管３８に接続されている。温水熱交換器３７は、温水を一端から取り入れ他端から放出する温水導管４３に介装されており、温水導管４３の一端は温水還管４０に、他端は温水往管４１にそれぞれ接続されている。なお、図４における符号４４は送水ポンプ、符号４５は二方弁を示す。
【００４８】
次に、上記した第２の実施の形態の設備システムを構成する熱源水配管６内を流通する熱源水を加熱又は冷却する方法について説明する。
【００４９】
まず、熱源水を加熱する方法について説明する。温水往管４１内を流通する温水は、温水往管４１から分岐して温水導管４３に流入する。このとき、二方弁４５を開状態にする。温水は、温水導管４３内を流通して温水熱交換器３７に至る。温水熱交換器３７内において、熱源水配管６内を流通する熱源水と温水導管４３内を流通する温水との間で熱交換を行い、温水の熱を熱源水に伝えて熱源水を加熱する。熱源水に熱を伝えた温水は、温水熱交換器３７から温水導管４３を介して温水還管４０に流出される。
【００５０】
次に、熱源水を冷却する方法について説明する。冷水還管３８内を流通する冷水は、冷水還管３８から分岐して冷水導管４２に流入する。冷水は、冷水導管４２内を流通して冷水熱交換器３６に至る。冷水熱交換器３６内において、熱源水配管６内を流通する熱源水と冷水導管４２内を流通する冷水との間で熱交換を行い、熱源水の熱を冷水に伝えて熱源水を冷却する。熱源水の熱を享受した冷水は、冷水熱交換器３６から冷水導管４２を介して冷水還管３８に流出される。
【００５１】
上記した構成により、周辺地域に配設されている温水往管４１内を流通する温水と熱交換することによって熱源水は加熱されるため、建築物１の屋上に設置される温熱源４が不要となる。また、周辺地域に配設されている冷水還管３８内を流通する冷水と熱交換することによって熱源水は冷却されるため、建築物１の屋上に設置される冷熱源５が不要となる。さらに、エアコン室内機８が稼動することで冷媒から熱を享受した熱源水の温度は２０℃から３２℃程度のため、冷水還管３８内を流通する冷水を使用することができる。また、エアコン床暖房時、貯湯槽熱源機１２の必要温度も同様であるため、温水還管４０内を流通する温水を加熱に利用することも可能である。
【００５２】
〈第３の実施の形態〉
次に、本発明の第３の実施の形態について説明する。なお、上述した第１、第２の実施の形態と同一の構成要素については、同一の符号を付すことでその説明を省略する。
【００５３】
図５、図６に示すように、共用熱源機１１内に設けられた切換弁１９は、冷媒の流路方向を切換える第１の切換弁１９ａと第２の切換弁１９ｂとから構成されている。
【００５４】
圧縮機１６は、圧縮機１６から切換弁１９ａ、１９ｂへ冷媒を流通させる第１の冷媒経路２１を介して第１の切換弁１９ａと第２の切換弁１９ｂとにそれぞれ接続されているとともに、切換弁１９ａ、１９ｂから圧縮機１６へ冷媒を流通させる第２の冷媒経路２２を介して第１の切換弁１９ａと第２の切換弁１９ｂとにそれぞれ接続されている。第２の切換弁１９ｂは、第３の冷媒経路２３を介して熱源水熱交換器１７に接続されており、熱源水熱交換器１７は、第１のエアコン冷媒配管１３ａを介してエアコン熱交換器２０に接続されている。エアコン熱交換器２０は、第２のエアコン冷媒配管１３ｂを介して第１の切換弁１９ａと第２の切換弁１９ｂとにそれぞれ接続されている。第１の切換弁１９ａと床暖房熱交換器１８とは、第４の冷媒経路２４を介して接続されており、床暖房熱交換器１８と第１のエアコン冷媒配管１３ａの中間部とは、第５の冷媒経路２５を介して接続されている。また、床暖房熱交換器１８には、床暖房パネル９内に配設された温水循環配管１４の両端が接続されている。
【００５５】
次に、上記した第３の実施の形態の共用熱源機１１の使用方法について、夏期運転（エアコン運転）と冬期運転（床暖房運転）と中間期運転（除湿運転）に区分けして説明する。
【００５６】
〔夏期運転〕
エアコン室内機８を稼動させる場合について説明する。なお、図５における白抜きの矢印は、この場合の冷媒の流れを示すものである。
【００５７】
図５に示すように、圧縮機１６によって圧縮された冷媒は、圧縮機１６から第１の冷媒経路２１に流入する。圧縮された冷媒は、第１の冷媒経路２１内を流通して第２の切換弁１９ｂに至る。第２の切換弁１９ｂによって冷媒の流路方向を切換え、圧縮された冷媒を第３の冷媒経路２３に送る。この圧縮された冷媒は、第３の冷媒経路２３内を流通して熱源水熱交換器１７に至る。
【００５８】
熱源水熱交換器１７内において、冷却された熱源水と圧縮された冷媒との間で熱交換を行い、冷媒の熱を熱源水に伝えて冷媒の冷却を行う。冷却された冷媒は、熱源水熱交換器１７から第１のエアコン冷媒配管１３ａに流入する。冷却された冷媒は、第１のエアコン冷媒配管１３ａ内を流通し、過冷却コイル３０、キャピラリーチューブ２７、ストレーナー２８、弁３２を経由して、エアコン熱交換器２０に至る。また、冷媒から熱を享受した熱源水は、熱源水交換器１７から熱源水還管６ｂに流出する。
【００５９】
エアコン熱交換器２０において、第１のエアコン冷媒配管１３ａ内から流入した冷却された冷媒と居室２内の空気との間で熱交換を行い、空気の熱を冷媒に伝えて空気の冷却を行う。この空気は冷却されることで冷気となり、この冷気を居室２内に放出し、エアコン室内機８は稼動する。空気の熱を享受した冷媒は、第２のエアコン冷媒配管１３ｂ内に流入し、第２のエアコン冷媒配管１３ｂ内を流通し、弁３２を経由して第１の切換弁１９ａに至る。第１の切換弁１９ａによって冷媒の流路方向を切換え、熱を享受した冷媒を第２の冷媒経路２２に送る。この熱を享受した冷媒は、第２の冷媒経路２２内を流通し、アキュムレータ２６を経由して圧縮機１６内に至る。
【００６０】
〔冬期運転〕
床暖房パネル９を暖める場合について説明する。なお、図５における黒塗りの矢印は、この場合の冷媒の流れを示すものである。
【００６１】
共用熱源機１１内に設けられた圧縮機１６によって圧縮機１６内の冷媒を圧縮する。圧縮された冷媒は、第１の冷媒経路２１内を流通して第１の切換弁１９ａに至る。第１の切換弁１９ａによって冷媒の流路方向を切換え、圧縮された冷媒を第４の冷媒経路２４に送る。この圧縮された冷媒は、第４の冷媒経路２４内を流通し、床暖房熱交換器１８に至る。
【００６２】
床暖房熱交換器１８において、温水循環配管１４内を流通する温水と圧縮された冷媒との間で熱交換を行い、冷媒の熱を温水に伝えて温水の加熱を行う。加熱された温水は、床暖房パネル９内に配設された温水循環配管１４内を流通して床暖房パネル９を暖める。
【００６３】
また、熱を放出した冷媒は床暖房熱交換器１８から第５の冷媒経路２５に流入する。熱を放出した冷媒は第５の冷媒経路２５内を流通し、第１のエアコン冷媒配管１３ａに流入する。熱を放出した冷媒は、第１のエアコン冷媒配管１３ａ内を流通し、ストレーナー２８、逆止弁３１、過冷却コイル３０を経由して、熱源水熱交換器１７に至る。
【００６４】
熱源水熱交換器１７において、加熱された熱源水と熱を放出した冷媒との間で熱交換を行い、熱源水の熱を冷媒に伝えて冷媒の加熱を行う。加熱された冷媒は熱源水熱交換器１７から第３の冷媒経路２３に流入する。この加熱された冷媒は、第３の冷媒経路２３内を流通し、第２の切換弁１９ｂに至る。第２の切換弁１９ｂによって冷媒の流路方向を切換えて、第２の冷媒経路２２に送る。加熱された冷媒は、第２の冷媒経路２２内を流通し、アキュムレータ２６を経由して圧縮機１６に流入する。
【００６５】
〔中間期運転〕
エアコン室内機８と床暖房パネル９との間で熱回収する場合について説明する。なお、図６における破線の矢印は、この場合の冷媒の流れを示すものである。
【００６６】
図６に示すように、圧縮機１６によって圧縮された冷媒は、圧縮機１６から第１の冷媒経路２１内に流入する。圧縮された冷媒は、第１の冷媒経路２１内を流通して第１の切換弁１９ａおよび第２の切換弁１９ｂのそれぞれに至る。
【００６７】
第１の切換弁１９ａによって冷媒の流路方向を切換え、圧縮された冷媒を第４の冷媒経路２４に送る。この圧縮された冷媒は、第４の冷媒経路２４内を流通し、床暖房熱交換器１８に至る。床暖房熱交換器１８において、温水循環配管１４内を流通する温水と圧縮された冷媒との間で熱交換を行い、冷媒の熱を温水に伝えて温水の加熱を行う。温水に熱を放出した冷媒は、第５の冷媒経路２５に流入する。熱を放出した冷媒は、第５の冷媒経路２５内を流通して第１のエアコン冷媒配管１３ａに流入し、第１のエアコン冷媒配管１３ａ内を流通し、弁３２、ストレーナー２８、逆止弁３１を経由してエアコン熱交換器２０に至る。また、加熱された温水は、床暖房パネル９内に配設された温水循環配管１４内を流通して床暖房パネル９を暖める。
【００６８】
一方、床暖房パネル９の加熱に不要な冷媒は第２の切換弁１９ｂによって冷媒の流路方向を切換え、圧縮された冷媒を第３の冷媒経路２３に送る。この圧縮された冷媒は、第３の冷媒経路２３内を流通し、熱源水熱交換器１７に至る。熱源水熱交換器１７内において、冷却された熱源水と圧縮された冷媒との間で熱交換を行い、冷媒の熱を熱源水に伝えて冷媒の冷却を行う。冷却された冷媒は、熱源水熱交換器１７から第１のエアコン冷媒配管１３ａに流入する。冷却された冷媒は、第１のエアコン冷媒配管１３ａ内を流通し、過冷却コイル３０、キャピラリーチューブ２７、ストレーナー２８、弁３２を経由して、エアコン熱交換器２０に至る。
【００６９】
エアコン熱交換器２０において、エアコン冷媒配管１３内を流通する冷却された冷媒と居室２内の空気との間で熱交換を行い、空気の熱を冷媒に伝えて空気の冷却を行う。この空気は冷却されることで冷気となり、エアコン室内機８は稼動する。空気の熱を享受した冷媒は、エアコン熱交換器２０から第２のエアコン冷媒配管１３ｂ内に流入する。熱を享受した冷媒は、第２のエアコン冷媒配管１３ｂ内を流通し、弁３２を経由して第１の切換弁１９ａおよび第２の切換弁１９ｂのそれぞれに至る。第１の切換弁１９ａおよび第２の切換弁１９ｂによって冷媒の流路方向を切換え、熱を享受した冷媒を第２の冷媒経路２２にそれぞれ送る。この熱を享受した冷媒は、第２の冷媒経路２２内を流通し、アキュムレータ２６を経由して圧縮機１６内に至る。
【００７０】
上記した構成により、エアコン室内機８と床暖房パネル９との間で熱回収が行われるため、省エネルギーを図ることができる。
【００７１】
以上、本発明に係る建築物の改修に伴う設備システムとその構築方法の第１、第２、第３の実施の形態について例をとって説明したが、むろん新築の場合にも同様のシステムで同様の効果を得るのは言うまでもない事であり、さらに、本発明は上記した第１、第２、第３の実施の形態に限定されるものではなく、その趣旨を逸脱しない限り適宜変更可能である。例えば、本実施の形態では、エアコン室内機８と床暖房パネル９との熱源機に共用熱源機１１を使用しているが、エアコン室内機８にはエアコン熱源機を使用するとともに床暖房パネル９には床暖房熱源機を使用して、それぞれ別個の熱源機を設けてもよい。
【００７２】
また、第２の実施の形態では、冷水導管４２の両端は冷水還管３８にそれぞれ接続されているが、冷水熱交換器３６は冷水を一端から取り入れ他端から放出する冷水導管４２に介装され、冷水導管４２の一端は冷水還管３８に、他端は冷水往管３９にそれぞれ接続されていてもよい。この場合には、送水ポンプ４４を省略することができる。また、第２の実施の形態では、温水導管４３の一端は温水還管４０に、他端は温水往管４１にそれぞれ接続されているが、温水熱交換器３７は温水を一端から取り入れ他端から放出する温水導管４３に介装され、温水導管４３の両端が温水還管４０に接続されていてもよい。この場合には、送水ポンプ４４が必要となる。
【００７３】
さらに、図１における建築物１が地下ピットを有している場合は、風呂の排水を一時的に地下ピットに貯留して、この風呂の排水から熱回収をしてもよい。これにより、更なる省エネルギーを図ることができる。
【００７４】
【発明の効果】
本発明によれば、熱源水配管内を流通する熱源水とエアコンの冷媒とを熱交換することで冷媒を加熱又は冷却するため、エアコン室外機が不要にすることができる。また、熱源水との熱交換により水を加熱して湯を沸かすため、ガス湯沸し機およびガス配管を不要にすることができ、省スペースと高い安全性が図れる。さらに、熱源水と床暖房の温水とを熱交換することで温水を加熱するため、電気式の床暖房に比べて床暖房の電力消費量を軽減することができ、省エネルギーを図ることができる。
【図面の簡単な説明】
【図１】本発明の第１の実施の形態を説明する断面図である。
【図２】本発明の第１の実施の形態の設備システムを説明するシステム構成図である。
【図３】本発明の第１の実施の形態の共用熱源機を説明するシステム構成図である。
【図４】本発明の第２の実施の形態の設備システムを説明するシステム構成図である。
【図５】本発明の第３の実施の形態の共用熱源機を説明するシステム構成図である。
【図６】本発明の第３の実施の形態の中間期運転の共用熱源機を説明するシステム構成図である。
【符号の説明】
１建築物
２居室
４温熱源
５冷熱源
６熱源水配管
８エアコン室内機
９床暖房パネル
１０貯湯槽
１１共用熱源機（エアコン熱源機、床暖房熱源機）
１２貯湯槽熱源機
１３、１３ａ、１３ｂエアコン冷媒配管
１４温水循環配管
１５給湯配管
１６圧縮機
１７熱源水熱交換器
１８床暖房熱交換器
１９、１９ａ、１９ｂ切換弁
３６冷水熱交換器
３７温水熱交換器
３８冷水還管
３９冷水往管
４０温水還管
４１温水往管
４２冷水導管
４３温水導管[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an equipment system for saving space, high safety, and cost saving, and relates to an equipment system for a case where a newly-built apartment house and office building is renovated into an apartment house building, and a method of constructing the same.
[0002]
[Prior art]
In recent years, in multi-family dwellings, effective use of space is the most important point, and ensuring safety in the event of a disaster is also an important issue. In addition, existing buildings are often renovated for use change or aging. The main issues in such renovation are the method of transporting materials necessary for renovation work, the method of transporting waste materials generated by the renovation work, and the reduction of the impact on the surrounding environment due to the vibration and noise involved in the renovation work. It is. In order to solve such a problem, various construction methods have been developed (for example, see Patent Document 1).
[0003]
[Patent Document 1]
JP 2002-147030 A (Page 3-4, FIG. 1)
[0004]
[Problems to be solved by the invention]
However, none of the conventional construction methods and the like mentions a problem of an equipment system that focuses on space saving and safety assurance or an equipment system in the case of renovating an office building to a building for an apartment complex. The problem of the equipment system when renovating a high-rise or super-high-rise apartment building or office building to an apartment building includes the following matters.
[0005]
First, the space where the outdoor unit of the air conditioner can be installed is limited, and it is difficult to secure the installation place of the outdoor unit of the air conditioner to be installed in each of the plurality of rooms of the apartment building. . Further, when electric floor heating is used for the floor heating, the power consumption increases. In addition, the installation location of the gas water heater is limited, and since only a part of the gas pipe for hot water supply is installed indoors, it is necessary to provide gas pipes for all of the plurality of living rooms. The use of gas in dwelling units is not as safe as electricity in case of emergency.
[0006]
The present invention has been made in consideration of the above problems, and has as its object to provide an equipment system that does not require an outdoor unit of an air conditioner and does not require a gas water heater and a gas pipe, and a method of constructing the same. It is another object of the present invention to provide a facility system for renovating a building and a method for constructing the same, which can save energy by reducing the power consumption of floor heating.
[0007]
[Means for Solving the Problems]
The invention according to claim 1 is provided with an air conditioner indoor unit, a floor heating panel, and a hot water storage tank in a plurality of living rooms provided in a building, and through an air conditioner refrigerant pipe for flowing a refrigerant to the air conditioner indoor unit. Connecting the air conditioner heat source unit for heating or cooling the refrigerant, connecting a floor heating heat source unit for heating the hot water through a hot water circulation pipe for circulating hot water to the floor heating panel, and supplying hot water to the hot water storage tank. A common heat source through which a heated or cooled heat source water flows to the air conditioner heat source device, the floor heating heat source device, and the hot water tank heat source device by connecting a hot water tank heat source device for heating water through a hot water supply pipe to be supplied. It is characterized by connecting water pipes respectively.
[0008]
The invention according to claim 2 is characterized in that a plurality of living rooms are provided in a building, an air conditioner indoor unit is arranged in the living room, and the refrigerant is passed through the air conditioner refrigerant pipe through which the refrigerant flows to the air conditioner indoor unit. A floor heating panel is disposed under the floor of the living room, and a floor heating panel is disposed under the floor of the living room, and the floor heating panel heats the hot water through a hot water circulation pipe that circulates hot water. A hot water tank is disposed in the living room, and a hot water tank heat source device for heating water is connected to the hot water tank via a hot water supply pipe for supplying hot water. A common heat source water pipe through which the heated or cooled heat source water flows is connected to the heat source device and the hot water tank heat source device.
[0009]
With such a feature, heat exchange between the heat source water and the refrigerant is performed in the air conditioner heat source device, and the heated refrigerant or the cooled refrigerant is sent to the air conditioner indoor unit. Further, heat exchange between the heat source water and the hot water is performed in the floor heating heat source device, and the heated hot water is sent into the floor heating panel. Further, the heat source water is used in the hot water tank heat source device, for example, the water is heated via a refrigerant to boil the hot water, and the hot water is sent into the hot water tank.
[0010]
According to a third aspect of the present invention, in the facility system according to the second aspect, on the roof of the building, a warm heat source for heating the heat source water and a cold heat source for dissipating heat of the heat source water are arranged, The heat source and the cold source are connected to the heat source water pipe.
[0011]
With such a feature, the heat source water is heated by the warm heat source, or the heat source water is cooled by the cold heat source.
[0012]
According to a fourth aspect of the present invention, in the equipment system according to the second aspect, a chilled water heat exchanger and a hot water heat exchanger are connected to the heat source water pipe, respectively, and the chilled water heat exchanger is connected via a chilled water conduit. The hot water heat exchanger is connected to a cold water return pipe or a cold water outgoing pipe provided in a surrounding area of the building, and the hot water heat exchanger is provided with a hot water return pipe or hot water provided in the surrounding area of the building through a hot water pipe. It is characterized by being connected to the outgoing pipe.
[0013]
With such a feature, the heat source water is cooled by exchanging heat between the underground cold water and the heat source water flowing in the cold water return pipe or the cold water outgoing pipe provided in the surrounding area by the cold water heat exchanger. Alternatively, the heat source water is heated by exchanging heat between the hot water and the heat source water flowing in the hot water return pipe or the hot water forward pipe provided in the surrounding area by the hot water heat exchanger.
[0014]
According to a fifth aspect of the present invention, in the equipment system according to any one of the second to fourth aspects, the air conditioner heat source unit and the floor heating heat source unit are integrated by a common heat source unit, and the common heat source unit is provided with the refrigerant. A heat source water heat exchanger that performs heat exchange between the refrigerant and the heat source water; a floor heating heat exchanger that performs heat exchange between the refrigerant and the hot water; and And a switching valve for switching the flow direction of the refrigerant compressed by the machine to one of the heat source water heat exchanger direction and the floor heating heat exchanger direction, or to both. It is characterized by:
[0015]
With such a feature, if a space for installing the common heat source device is secured, a space for installing the air conditioner heat source device and the floor heating heat source device becomes unnecessary. In addition, heat can be recovered in the common heat source device.
[0016]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, first, second, and third embodiments of a facility system and a construction method according to the present invention will be described with reference to the drawings.
[0017]
<First Embodiment>
A first embodiment of the present invention will be described.
[0018]
In FIG. 1, reference numeral 1 denotes a building having a plurality of floors whose use is changed from an office to an apartment. The building 1 is provided with a plurality of living rooms 2 each forming a living space of a person for each floor, and a pipe shaft 3 communicating from the lowest floor to the highest floor. On the roof of the building 1, there are provided a heat source 4 for heating heat source water such as a gas water heater and an air-cooled heat pump, and a cold heat source 5 for dissipating and cooling the heat source water such as a closed cooling tower. The heat source 4 and the cold source 5 are interposed in series with a heat source water pipe 6 through which heat source water flows. A pump 7 for circulating heat source water is interposed in the heat source water pipe 6 adjacent to the cold heat source 5 and on the opposite side of the warm heat source 4.
[0019]
The heat source water pipe 6 includes a heat source water outgoing pipe 6a for sending out the heat source water heated or cooled by the warm heat source 4 or the cold heat source 5, and a heat source water return pipe 6b for returning the heat source water to the warm heat source 4 or the cold heat source 5. Have been. The heat source water outgoing pipe 6a and the heat source water return pipe 6b are respectively arranged vertically in the pipe shaft 3, and are branched into the respective living rooms 2 on each floor in the pipe shaft 3.
[0020]
As shown in FIG. 2, in the living room 2, an air conditioner indoor unit 8 for adjusting the temperature of the air in the living room 2, a floor heating panel 9 for heating the floor in the living room 2, and hot water for daily use are stored. A hot water tank 10, a common heat source device 11 for heating or cooling a refrigerant and heating hot water, and a hot water tank heat source device 12 for heating water using a heat pump to make hot water are provided.
[0021]
The air conditioner indoor unit 8 and the common heat source unit 11 are connected via an air conditioner refrigerant pipe 13 through which a refrigerant flows. The floor heating panel 9 and the common heat source unit 11 are connected via a hot water circulation pipe 14 through which hot water flows. Hot water tank 10 and hot water tank heat source device 12 are connected via hot water supply pipe 15 that sends hot water heated by hot water tank heat source device 12 to hot water tank 10. The common heat source unit 11 and the hot water tank heat source unit 12 are connected to a heat source water outgoing pipe 6a and a heat source water return pipe 6b which are branched by the pipe shaft 3 and arranged in each living room.
[0022]
As shown in FIG. 3, the shared heat source device 11 includes a compressor 16 that compresses a refrigerant, a heat source water heat exchanger 17 that performs heat exchange between the refrigerant and a heat source water flowing in the heat source water pipe 6, It comprises a floor heating heat exchanger 18 for exchanging heat between the refrigerant and the hot water flowing through the hot water circulation pipe 14, and a switching valve 19 for switching the flow direction of the refrigerant compressed by the compressor 16. .
[0023]
In the air conditioner indoor unit 8, an air conditioner heat exchanger 20 for exchanging heat between the refrigerant flowing in the air conditioner refrigerant pipe 13 and the air in the living room 2 is additionally provided. It comprises a first air conditioner refrigerant pipe 13a and a second air conditioner refrigerant pipe 13b.
[0024]
The compressor 16 and the switching valve 19 are connected via a first refrigerant path 21 that allows the refrigerant to flow from the compressor 16 to the switching valve 19 and a second refrigerant path 22 that allows the refrigerant to flow from the switching valve 19 to the compressor 16. The switching valve 19 and the heat source water heat exchanger 17 are connected via a third refrigerant path 23. The heat source water heat exchanger 17 and the air conditioner heat exchanger 20 are connected via a first air conditioner refrigerant pipe 13a, and the air conditioner heat exchanger 20 and the switching valve 19 are connected to a second air conditioner refrigerant pipe. 13b. The switching valve 19 and the floor heating heat exchanger 18 are connected via a fourth refrigerant path 24, and the floor heating heat exchanger 18 and the middle part of the first air conditioner refrigerant pipe 13 a are It is connected via a coolant path 25. Further, both ends of the hot water circulation pipe 14 disposed in the floor heating panel 9 are connected to the floor heating heat exchanger 18.
[0025]
Reference numeral 26 denotes an accumulator, reference numeral 27 denotes a capillary tube, reference numeral 28 denotes a strainer, reference numeral 29 denotes a muffler, reference numeral 30 denotes a supercooling coil, reference numeral 31 denotes a check valve, reference numeral 32 denotes a valve, reference numeral 33 denotes a hot water pump, and reference numeral 34. Denotes expansion tanks, respectively. In FIG. 2, reference numeral 35 denotes a gate valve for stopping the flow of the heat source water.
[0026]
Next, a method of using the facility system according to the first embodiment described above will be described separately for a summer operation (air conditioner operation) and a winter operation (floor heating operation).
[0027]
[Summer operation]
A case where the air conditioner indoor unit 8 is operated will be described. Note that the white arrows in FIG. 3 indicate the flow of the refrigerant in this case.
[0028]
As shown in FIG. 2, the heat source 5 is started and the heat source 4 is stopped, and the heat source water circulating in the heat source water pipe 6 is cooled by the pressure of the pump 7. The gate valve 35 provided in the heat source water pipe 6 is opened, and the cooled heat source water flows from the heat source water outgoing pipe 6a into the heat source water heat exchanger 17 shown in FIG.
[0029]
On the other hand, as shown in FIG. 3, the refrigerant in the compressor 16 is compressed by the compressor 16 provided in the common heat source device 11. As the refrigerant, ammonia, a fluorinated hydrocarbon (Freon) or the like is mainly used. The compressed refrigerant flows through the first refrigerant path 21 and reaches the switching valve 19. The flow direction of the refrigerant is switched by the switching valve 19, and the compressed refrigerant is sent to the third refrigerant path 23. The compressed refrigerant flows through the third refrigerant path 23 and reaches the heat source water heat exchanger 17.
[0030]
In the heat source water heat exchanger 17, heat is exchanged between the cooled heat source water and the compressed refrigerant, and the heat of the refrigerant is transmitted to the heat source water to cool the refrigerant. The cooled refrigerant flows from the heat source water heat exchanger 17 into the first air conditioner refrigerant pipe 13a. The cooled refrigerant flows through the first air conditioner refrigerant pipe 13a, and reaches the air conditioner heat exchanger 20 via the supercooling coil 30, the capillary tube 27, the strainer 28, and the valve 32. Further, the heat source water having received heat from the refrigerant flows out of the heat source water exchanger 17 to the heat source water return pipe 6b.
[0031]
In the air conditioner heat exchanger 20, heat exchange is performed between the cooled refrigerant flowing from the first air conditioner refrigerant pipe 13a and the air in the living room 2, and the heat of the air is transmitted to the refrigerant to cool the air. . This air is cooled to become cool air, and the cool air is discharged into the living room 2 and the air conditioner indoor unit 8 operates. The refrigerant having received the heat of the air flows into the second air conditioner refrigerant pipe 13b, flows through the second air conditioner refrigerant pipe 13b, and reaches the switching valve 19 via the valve 32. The flow direction of the refrigerant is switched by the switching valve 19, and the refrigerant having received the heat is sent to the second refrigerant path 22. The refrigerant having received the heat flows through the second refrigerant path 22 and reaches the compressor 16 via the accumulator 26.
[0032]
(Winter operation)
The case where the floor heating panel 9 is heated will be described. Note that the black arrows in FIG. 3 indicate the flow of the refrigerant in this case.
[0033]
As shown in FIG. 2, the heat source 4 is started and the cold heat source 5 is stopped, and the heat source water circulating in the heat source water pipe 6 is heated by the pressure of the pump 7. The gate valve 35 provided in the heat source water pipe 6 is opened, and the heated heat source water flows from the heat source water outgoing pipe 6a into the heat source water heat exchanger 17 shown in FIG.
[0034]
On the other hand, as shown in FIG. 3, the refrigerant in the compressor 16 is compressed by the compressor 16 provided in the common heat source device 11. The compressed refrigerant flows through the first refrigerant path 21 and reaches the switching valve 19. The flow direction of the refrigerant is switched by the switching valve 19, and the compressed refrigerant is sent to the fourth refrigerant path 24. The compressed refrigerant flows through the fourth refrigerant path 24 and reaches the floor heating heat exchanger 18.
[0035]
In the floor heating heat exchanger 18, heat is exchanged between the hot water flowing through the hot water circulation pipe 14 and the compressed refrigerant, and the heat of the refrigerant is transmitted to the hot water to heat the hot water. The heated hot water flows through the hot water circulation pipe 14 provided in the floor heating panel 9 to heat the floor heating panel 9.
[0036]
The refrigerant that has released heat flows from the floor heating heat exchanger 18 into the fifth refrigerant path 25. The refrigerant that has released the heat flows through the fifth refrigerant path 25 and flows into the first air-conditioner refrigerant pipe 13a. The refrigerant that has released heat flows through the first air conditioner refrigerant pipe 13a, and reaches the heat source water heat exchanger 17 via the strainer 28, the check valve 31, and the supercooling coil 30.
[0037]
In the heat source water heat exchanger 17, heat is exchanged between the heated heat source water and the refrigerant that has released heat, and the heat of the heat source water is transmitted to the refrigerant to heat the refrigerant. The heated refrigerant flows into the third refrigerant path 23 from the heat source water heat exchanger 17. The heated refrigerant flows through the third refrigerant path 23 and reaches the switching valve 19. The flow direction of the refrigerant is switched by the switching valve 19 and sent to the second refrigerant path 22. The heated refrigerant flows through the second refrigerant path 22 and flows into the compressor 16 via the accumulator 26. The heat source water that has released the heat flows out of the heat source water heat exchanger 17 to the heat source water return pipe 6b.
[0038]
Next, a case where hot water is supplied into hot water storage tank 10 will be described.
[0039]
As shown in FIG. 2, the heat source 4 is started and the cold heat source 5 is stopped, and the heat source water circulating in the heat source water pipe 6 is heated by the pressure of the pump 7. The gate valve 35 provided in the heat source water pipe 6 is opened, and the heated heat source water flows into the hot water tank heat source device 12 from the heat source water outgoing pipe 6a.
[0040]
In the hot water tank heat source device 12, heat is exchanged between the heated heat source water and the refrigerant circulating in the hot water tank heat source device 12, and the heat of the heat source water is transmitted to the refrigerant to heat the refrigerant. The heated refrigerant becomes high temperature and high pressure by a compressor (not shown), and performs heat exchange between the high temperature and high pressure refrigerant and water supplied into the hot water tank heat source device 12 to transfer heat of the refrigerant to the water. Heat the water, boil the water. This hot water flows into hot water storage tank 10 through hot water supply pipe 15. The heat source water that has released the heat flows out of the heat source water heat exchanger 17 to the heat source water return pipe 6b.
[0041]
Next, a method of constructing the above-described facility system will be described.
[0042]
As shown in FIG. 2, a heating source 4 and a cooling source 5 are installed on the roof of a building 1 used for an office, and the heating source 4 and the cooling source 5 are placed inside a pipe shaft 3 of the building 1. Is connected to the heat source water pipe 6 using the existing building pipe provided in the above.
[0043]
On the other hand, the interior of the building 1 is divided into a plurality, and a living room 2 is formed. In the living room 2, an air conditioner indoor unit 8, a floor heating panel 9, and a hot water tank 10 are arranged at predetermined positions. In addition, the common heat source unit 11 and the hot water tank heat source unit 12 are arranged at predetermined positions such as a pipe behind the ceiling of the living room 2 and a duct space. The air conditioner indoor unit 8 and the common heat source unit 11 are connected via an air conditioner refrigerant pipe 13, and the floor heating panel 9 and the common heat source unit 11 are connected via a hot water circulation pipe 14. Further, hot water tank 10 and hot water tank heat source device 12 are connected via hot water supply pipe 15. Next, the heat source water pipe 6 is connected to the common heat source device 11 and the hot water tank heat source device 12, respectively.
[0044]
With the above configuration, when the air conditioner indoor unit 8 is operated, heat exchange is performed between the heat source water flowing through the common heat source water pipe 6 and the refrigerant, so that the air conditioner indoor unit 8 is operated. The air conditioner outdoor unit corresponding to the air conditioner indoor unit 8 becomes unnecessary. In addition, when the floor heating panel is heated, the floor heating panel is heated by heating the hot water with a heat pump using heat source water, so that the electric consumption is reduced as compared with the electric floor heating. Further, when supplying hot water into the hot water storage tank 10, since the hot water is supplied by performing heat exchange between the water and the heat source water flowing through the common heat source water pipe 6, the gas water heater and the gas pipe are required. It becomes unnecessary. Further, by using the common heat source device 11 in which the air conditioner heat source device that heats or cools the refrigerant and the floor heating heat source device that heats hot water are used, space can be saved.
[0045]
<Second embodiment>
Next, a second embodiment of the present invention will be described. Note that the same components as those in the above-described first embodiment are denoted by the same reference numerals, and description thereof is omitted.
[0046]
As shown in FIG. 4, the heat source water pipe 6 includes a cold water heat exchanger 36 for performing heat exchange between cold water and heat source water, and a hot water heat exchanger 37 for performing heat exchange between hot water and heat source water. Are interposed respectively. Also, in the ground around the building 1, a cold water return pipe 38 and a cold water outgoing pipe 39 through which cold water flows are buried, and a hot water return pipe 40 and a hot water outgoing pipe through which hot water flows. 41 are buried.
[0047]
The chilled water heat exchanger 36 is interposed in a chilled water conduit 42 that takes in chilled water from one end and discharges it from the other end, and both ends of the chilled water conduit 42 are connected to a chilled water return pipe 38. The hot water heat exchanger 37 is interposed in a hot water conduit 43 that takes in hot water from one end and discharges the hot water from the other end. ing. In addition, the code | symbol 44 in FIG. 4 shows a water pump, and the code | symbol 45 shows a two-way valve.
[0048]
Next, a method of heating or cooling the heat source water flowing in the heat source water pipe 6 constituting the facility system of the second embodiment will be described.
[0049]
First, a method for heating the heat source water will be described. The hot water flowing in the hot water outgoing pipe 41 branches off from the hot water outgoing pipe 41 and flows into the hot water conduit 43. At this time, the two-way valve 45 is opened. The hot water flows through the hot water conduit 43 and reaches the hot water heat exchanger 37. In the hot water heat exchanger 37, heat exchange is performed between the heat source water flowing in the heat source water pipe 6 and the hot water flowing in the hot water conduit 43, and the heat of the hot water is transmitted to the heat source water to heat the heat source water. . The hot water that has transmitted the heat to the heat source water flows out of the hot water heat exchanger 37 to the hot water return pipe 40 via the hot water conduit 43.
[0050]
Next, a method of cooling the heat source water will be described. The cold water flowing through the cold water return pipe 38 branches off from the cold water return pipe 38 and flows into the cold water conduit 42. The cold water flows through the cold water conduit 42 and reaches the cold water heat exchanger 36. In the cold water heat exchanger 36, heat exchange is performed between the heat source water flowing in the heat source water pipe 6 and the cold water flowing in the cold water conduit 42, and the heat of the heat source water is transmitted to the cold water to cool the heat source water. . The cold water that has enjoyed the heat of the heat source water flows out of the cold water heat exchanger 36 to the cold water return pipe 38 via the cold water conduit 42.
[0051]
With the above configuration, the heat source water is heated by exchanging heat with the hot water flowing in the hot water outgoing pipe 41 provided in the surrounding area, so that the heat source 4 installed on the roof of the building 1 is unnecessary. It becomes. Further, since the heat source water is cooled by exchanging heat with the cold water flowing in the cold water return pipe 38 provided in the surrounding area, the cold heat source 5 installed on the rooftop of the building 1 becomes unnecessary. Furthermore, since the temperature of the heat source water that has received heat from the refrigerant by operating the air conditioner indoor unit 8 is about 20 ° C. to 32 ° C., it is possible to use cold water flowing through the cold water return pipe 38. In addition, when the floor of the air conditioner is heated, the required temperature of the hot water tank heat source device 12 is the same, so that the hot water flowing through the hot water return pipe 40 can be used for heating.
[0052]
<Third embodiment>
Next, a third embodiment of the present invention will be described. Note that the same components as those in the first and second embodiments described above are denoted by the same reference numerals, and description thereof will be omitted.
[0053]
As shown in FIGS. 5 and 6, the switching valve 19 provided in the common heat source unit 11 is composed of a first switching valve 19a and a second switching valve 19b for switching the flow direction of the refrigerant. .
[0054]
The compressor 16 is connected to the first switching valve 19a and the second switching valve 19b via a first refrigerant path 21 that allows the refrigerant to flow from the compressor 16 to the switching valves 19a and 19b, The first switching valve 19a and the second switching valve 19b are connected to the first switching valve 19a and the second switching valve 19b, respectively, via a second refrigerant path 22 that allows the refrigerant to flow from the switching valves 19a and 19b to the compressor 16. The second switching valve 19b is connected to the heat source water heat exchanger 17 via the third refrigerant path 23, and the heat source water heat exchanger 17 exchanges air conditioner heat via the first air conditioner refrigerant pipe 13a. Connected to the vessel 20. The air conditioner heat exchanger 20 is connected to a first switching valve 19a and a second switching valve 19b via a second air conditioning refrigerant pipe 13b. The first switching valve 19a and the floor heating heat exchanger 18 are connected via a fourth refrigerant path 24, and the floor heating heat exchanger 18 and an intermediate portion of the first air conditioner refrigerant pipe 13a are It is connected via a fifth refrigerant path 25. In addition, both ends of the hot water circulation pipe 14 disposed in the floor heating panel 9 are connected to the floor heating heat exchanger 18.
[0055]
Next, a method of using the shared heat source device 11 according to the third embodiment will be described by dividing into a summer operation (air conditioner operation), a winter operation (floor heating operation), and an intermediate operation (dehumidification operation).
[0056]
[Summer operation]
The case where the air conditioner indoor unit 8 is operated will be described. The white arrows in FIG. 5 indicate the flow of the refrigerant in this case.
[0057]
As shown in FIG. 5, the refrigerant compressed by the compressor 16 flows from the compressor 16 into the first refrigerant path 21. The compressed refrigerant flows through the first refrigerant path 21 and reaches the second switching valve 19b. The direction of the flow path of the refrigerant is switched by the second switching valve 19b, and the compressed refrigerant is sent to the third refrigerant path 23. The compressed refrigerant flows through the third refrigerant path 23 and reaches the heat source water heat exchanger 17.
[0058]
In the heat source water heat exchanger 17, heat is exchanged between the cooled heat source water and the compressed refrigerant, and the heat of the refrigerant is transmitted to the heat source water to cool the refrigerant. The cooled refrigerant flows from the heat source water heat exchanger 17 into the first air conditioner refrigerant pipe 13a. The cooled refrigerant flows through the first air conditioner refrigerant pipe 13a, and reaches the air conditioner heat exchanger 20 via the subcooling coil 30, the capillary tube 27, the strainer 28, and the valve 32. Further, the heat source water having received heat from the refrigerant flows out of the heat source water exchanger 17 to the heat source water return pipe 6b.
[0059]
In the air conditioner heat exchanger 20, heat exchange is performed between the cooled refrigerant flowing from the first air conditioner refrigerant pipe 13a and the air in the living room 2, and the heat of the air is transmitted to the refrigerant to cool the air. . This air is cooled to become cool air, and the cool air is discharged into the living room 2 and the air conditioner indoor unit 8 operates. The refrigerant having received the heat of the air flows into the second air conditioner refrigerant pipe 13b, flows through the second air conditioner refrigerant pipe 13b, and reaches the first switching valve 19a via the valve 32. The direction of the flow path of the refrigerant is switched by the first switching valve 19a, and the refrigerant having received the heat is sent to the second refrigerant path 22. The refrigerant having received the heat flows through the second refrigerant path 22 and reaches the compressor 16 via the accumulator 26.
[0060]
(Winter operation)
The case where the floor heating panel 9 is heated will be described. Note that the black arrows in FIG. 5 indicate the flow of the refrigerant in this case.
[0061]
The refrigerant in the compressor 16 is compressed by the compressor 16 provided in the common heat source unit 11. The compressed refrigerant flows through the first refrigerant path 21 and reaches the first switching valve 19a. The direction of the flow path of the refrigerant is switched by the first switching valve 19a, and the compressed refrigerant is sent to the fourth refrigerant path 24. The compressed refrigerant flows through the fourth refrigerant path 24 and reaches the floor heating heat exchanger 18.
[0062]
In the floor heating heat exchanger 18, heat is exchanged between the hot water flowing through the hot water circulation pipe 14 and the compressed refrigerant, and the heat of the refrigerant is transmitted to the hot water to heat the hot water. The heated hot water flows through the hot water circulation pipe 14 provided in the floor heating panel 9 to heat the floor heating panel 9.
[0063]
The refrigerant that has released heat flows from the floor heating heat exchanger 18 into the fifth refrigerant path 25. The refrigerant that has released the heat flows through the fifth refrigerant path 25 and flows into the first air-conditioner refrigerant pipe 13a. The refrigerant that has released heat flows through the first air conditioner refrigerant pipe 13a, and reaches the heat source water heat exchanger 17 via the strainer 28, the check valve 31, and the supercooling coil 30.
[0064]
In the heat source water heat exchanger 17, heat is exchanged between the heated heat source water and the refrigerant that has released heat, and the heat of the heat source water is transmitted to the refrigerant to heat the refrigerant. The heated refrigerant flows into the third refrigerant path 23 from the heat source water heat exchanger 17. The heated refrigerant flows through the third refrigerant path 23 and reaches the second switching valve 19b. The direction of the flow path of the refrigerant is switched by the second switching valve 19b and sent to the second refrigerant path 22. The heated refrigerant flows through the second refrigerant path 22 and flows into the compressor 16 via the accumulator 26.
[0065]
(Interim operation)
A case where heat is recovered between the air conditioner indoor unit 8 and the floor heating panel 9 will be described. The broken arrows in FIG. 6 indicate the flow of the refrigerant in this case.
[0066]
As shown in FIG. 6, the refrigerant compressed by the compressor 16 flows from the compressor 16 into the first refrigerant path 21. The compressed refrigerant flows through the first refrigerant path 21 and reaches each of the first switching valve 19a and the second switching valve 19b.
[0067]
The direction of the flow path of the refrigerant is switched by the first switching valve 19a, and the compressed refrigerant is sent to the fourth refrigerant path 24. The compressed refrigerant flows through the fourth refrigerant path 24 and reaches the floor heating heat exchanger 18. In the floor heating heat exchanger 18, heat is exchanged between the hot water flowing through the hot water circulation pipe 14 and the compressed refrigerant, and the heat of the refrigerant is transmitted to the hot water to heat the hot water. The refrigerant that has released heat to the hot water flows into the fifth refrigerant path 25. The refrigerant that has released the heat flows through the fifth refrigerant path 25, flows into the first air-conditioner refrigerant pipe 13a, flows through the first air-conditioner refrigerant pipe 13a, and flows through the valve 32, the strainer 28, and the check valve. It reaches the air conditioner heat exchanger 20 via 31. Further, the heated hot water flows through the hot water circulation pipe 14 provided in the floor heating panel 9 to heat the floor heating panel 9.
[0068]
On the other hand, the refrigerant unnecessary for heating the floor heating panel 9 switches the flow direction of the refrigerant by the second switching valve 19b, and sends the compressed refrigerant to the third refrigerant path 23. The compressed refrigerant flows through the third refrigerant path 23 and reaches the heat source water heat exchanger 17. In the heat source water heat exchanger 17, heat is exchanged between the cooled heat source water and the compressed refrigerant, and the heat of the refrigerant is transmitted to the heat source water to cool the refrigerant. The cooled refrigerant flows from the heat source water heat exchanger 17 into the first air conditioner refrigerant pipe 13a. The cooled refrigerant flows through the first air conditioner refrigerant pipe 13a, and reaches the air conditioner heat exchanger 20 via the subcooling coil 30, the capillary tube 27, the strainer 28, and the valve 32.
[0069]
In the air conditioner heat exchanger 20, heat is exchanged between the cooled refrigerant flowing in the air conditioner refrigerant pipe 13 and the air in the living room 2, and the heat of the air is transmitted to the refrigerant to cool the air. This air is cooled to become cool air, and the air conditioner indoor unit 8 operates. The refrigerant that has enjoyed the heat of the air flows from the air conditioner heat exchanger 20 into the second air conditioner refrigerant pipe 13b. The refrigerant having received the heat flows through the second air conditioner refrigerant pipe 13b, and reaches each of the first switching valve 19a and the second switching valve 19b via the valve 32. The direction of the flow path of the refrigerant is switched by the first switching valve 19a and the second switching valve 19b, and the refrigerant having received the heat is sent to the second refrigerant path 22, respectively. The refrigerant having received the heat flows through the second refrigerant path 22 and reaches the compressor 16 via the accumulator 26.
[0070]
With the above-described configuration, heat is recovered between the air conditioner indoor unit 8 and the floor heating panel 9, so that energy can be saved.
[0071]
As described above, the first, second, and third embodiments of the facility system and the method of constructing the facility system according to the present invention have been described with reference to the examples. It goes without saying that a similar effect is obtained, and the present invention is not limited to the above-described first, second, and third embodiments, and can be appropriately changed without departing from the gist thereof. is there. For example, in the present embodiment, the common heat source unit 11 is used as a heat source unit for the air conditioner indoor unit 8 and the floor heating panel 9, but the air conditioner heat source unit is used for the air conditioner indoor unit 8 and the floor heating panel 9 is used. , A floor heating heat source device may be used, and separate heat source devices may be provided.
[0072]
In the second embodiment, both ends of the chilled water conduit 42 are connected to the chilled water return pipe 38, respectively, but the chilled water heat exchanger 36 is interposed in the chilled water conduit 42 that takes in chilled water from one end and discharges it from the other end. The cold water conduit 42 may have one end connected to the cold water return pipe 38 and the other end connected to the cold water outgoing pipe 39. In this case, the water pump 44 can be omitted. In the second embodiment, one end of the hot water conduit 43 is connected to the hot water return pipe 40, and the other end is connected to the hot water outgoing pipe 41. However, the hot water heat exchanger 37 takes in hot water from one end and the other end. May be interposed in a hot water conduit 43 discharging from the hot water conduit 43 and both ends of the hot water conduit 43 may be connected to the hot water return pipe 40. In this case, a water pump 44 is required.
[0073]
Further, when the building 1 in FIG. 1 has an underground pit, the drainage of the bath may be temporarily stored in the underground pit, and heat may be recovered from the drainage of the bath. Thereby, further energy saving can be achieved.
[0074]
【The invention's effect】
According to the present invention, since the refrigerant is heated or cooled by exchanging heat between the heat source water flowing through the heat source water pipe and the refrigerant of the air conditioner, the air conditioner outdoor unit can be eliminated. In addition, since the water is heated to heat the water by heat exchange with the heat source water, a gas water heater and a gas pipe can be omitted, and space saving and high safety can be achieved. Furthermore, since the hot water is heated by exchanging heat between the heat source water and the warm water of the floor heating, the power consumption of the floor heating can be reduced as compared with the electric floor heating, and energy can be saved.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view illustrating a first embodiment of the present invention.
FIG. 2 is a system configuration diagram illustrating an equipment system according to the first embodiment of the present invention.
FIG. 3 is a system configuration diagram illustrating a shared heat source unit according to the first embodiment of the present invention.
FIG. 4 is a system configuration diagram illustrating an equipment system according to a second embodiment of the present invention.
FIG. 5 is a system configuration diagram illustrating a shared heat source device according to a third embodiment of the present invention.
FIG. 6 is a system configuration diagram illustrating a shared heat source unit of an intermediate operation according to a third embodiment of the present invention.
[Explanation of symbols]
1 building
2 living room
4 Heat source
5 Cold heat source
6 heat source water piping
8 Air conditioner indoor unit
9 Floor heating panel
10 Hot water storage tank
11 common heat source equipment (air conditioner heat source equipment, floor heating heat source equipment)
12 Hot water tank heat source unit
13, 13a, 13b Air conditioning refrigerant piping
14 Hot water circulation piping
15 Hot water supply piping
16 Compressor
17 heat source water heat exchanger
18 Floor heating heat exchanger
19, 19a, 19b switching valve
36 Chilled water heat exchanger
37 Hot water heat exchanger
38 Cold water return pipe
39 Cold water outgoing pipe
40 Hot water return pipe
41 Outgoing hot water pipe
42 Cold water conduit
43 Hot water conduit

Claims

An air conditioner indoor unit, a floor heating panel, and a hot water tank are installed in a plurality of living rooms provided in the building,
The air conditioner heat source unit that heats or cools the refrigerant is connected through an air conditioner refrigerant pipe that allows the refrigerant to flow through the air conditioner indoor unit, and the hot water is heated through a hot water circulation pipe that circulates hot water to the floor heating panel. Connecting a floor heating heat source device, connecting a hot water tank heat source device for heating water through a hot water supply pipe for supplying hot water to the hot water storage tank,
A method of constructing an equipment system, wherein a common heat source water pipe through which heated or cooled heat source water flows is connected to the air conditioner heat source device, the floor heating heat source device, and the hot water tank heat source device.

A plurality of living rooms are provided in the building, and an air conditioner indoor unit is disposed in the living room, and the air conditioner heat source heats or cools the refrigerant through an air conditioner refrigerant pipe through which the refrigerant flows. Machine is connected,
A floor heating panel is disposed under the floor of the living room, and a floor heating heat source device that heats the hot water is connected to the floor heating panel via a hot water circulation pipe that circulates hot water,
A hot water tank is arranged in the living room, and a hot water tank heat source device for heating water is connected to the hot water tank via a hot water supply pipe for supplying hot water,
A facility system, wherein a common heat source water pipe through which heated or cooled heat source water flows is connected to the air conditioner heat source device, the floor heating heat source device, and the hot water tank heat source device.

In the facility system according to claim 2,
On the roof of the building, a warm heat source for heating the heat source water and a cold heat source for dissipating the heat of the heat source water are arranged, and the warm heat source and the cold heat source are connected to the heat source water pipe. A facility system characterized by the following.

In the facility system according to claim 2,
A cold water heat exchanger and a hot water heat exchanger are connected to the heat source water pipe, respectively, and the cold water heat exchanger is connected to a cold water return pipe or a cold A facility system connected to a pipe, wherein the hot water heat exchanger is connected to a hot water return pipe or a hot water outgoing pipe disposed in a peripheral area of the building via a hot water conduit.

In the facility system according to any one of claims 2 to 4,
The air conditioner heat source device and the floor heating heat source device are aggregated by a shared heat source device,
The common heat source unit includes a compressor that compresses the refrigerant, a heat source water heat exchanger that performs heat exchange between the refrigerant and the heat source water, and a floor that performs heat exchange between the refrigerant and the hot water. A heating heat exchanger, and the flow direction of the refrigerant compressed by the compressor is selectively switched to one or both of the heat source water heat exchanger direction and the floor heating heat exchanger direction. And a switching valve.