JP2013108687A - Air conditioning/hot water supplying/discharging system - Google Patents

Air conditioning/hot water supplying/discharging system Download PDF

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JP2013108687A
JP2013108687A JP2011254650A JP2011254650A JP2013108687A JP 2013108687 A JP2013108687 A JP 2013108687A JP 2011254650 A JP2011254650 A JP 2011254650A JP 2011254650 A JP2011254650 A JP 2011254650A JP 2013108687 A JP2013108687 A JP 2013108687A
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air
refrigerant
heat
heat exchanger
water
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Kenji Iwazawa
賢治 岩澤
Masahiro Miyauchi
正裕 宮内
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MDI CORP
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/52—Heat recovery pumps, i.e. heat pump based systems or units able to transfer the thermal energy from one area of the premises or part of the facilities to a different one, improving the overall efficiency

Abstract

PROBLEM TO BE SOLVED: To provide a system for controlling an indoor unit, an outdoor unit, and a hot water supplying/discharging facility integrated as a whole, with which power can be saved by using heat of exhaust water from a bath tub and efficiently using the heat.SOLUTION: A heat exchanger for exchanging heat with a refrigerant by using the refrigerant circulated in a pipe is disposed for each of indoor air, outdoor air, and water. By a four-way valve for changing a refrigerant circulation path, the movement of heat of each heat exchanger is controlled, and control integrated as a whole is attained.

Description

本発明は、熱交換器を用いて家庭における空調と給排湯とを行うシステムに関するものである。   The present invention relates to a system that performs air conditioning and hot water supply / drainage at home using a heat exchanger.

家庭においては、空調のために室内の空気と室外の空気との間の熱交換が行われている。室内の冷房に当たっては室内の空気から室外の空気に熱を送るように熱交換が行われ、暖房に当たっては室外の空気から室内の空気に熱を送るように熱交換が行われる。この熱交換は、空調設備の室内機に設けられた熱交換器により室内の空気と冷媒との間の熱交換を行い、パイプを介して冷媒を空調設備の室外機に送り、室外機に設けられた熱交換器により冷媒と室外の空気との熱交換を行うものである。   At home, heat exchange between indoor air and outdoor air is performed for air conditioning. In the indoor cooling, heat exchange is performed so that heat is transmitted from the indoor air to the outdoor air, and in heating, heat exchange is performed so that heat is transmitted from the outdoor air to the indoor air. In this heat exchange, heat is exchanged between the indoor air and the refrigerant by a heat exchanger provided in the indoor unit of the air conditioning equipment, and the refrigerant is sent to the outdoor unit of the air conditioning equipment through a pipe and provided in the outdoor unit. The heat exchanger exchanges heat between the refrigerant and the outdoor air.

ところで、家庭内に空調設備以外にも放熱及び吸熱を行う箇所がある。浴室、給湯設備等である。パイプを介して冷媒を送っているのであれば、冷媒を空調設備室内機又は室外機以外の箇所に送ることも可能であり、浴室、給湯設備等において冷媒との間の熱交換を行うこともできる。
特許文献１には、冷媒を給湯設備に送り、室外機と室内機との間の熱交換と、室外機と給湯設備との間の熱交換を選択的に切り替える空調・給湯システムが開示されている。かかるシステムによれば、冷暖房の需要の少ない季節にも、室外機を活用して給湯を行うことができ、また、給湯の熱効率がヒーターを用いる場合よりも高いことが開示されている。 Incidentally, there are places in the home that perform heat dissipation and heat absorption in addition to air conditioning equipment. Bathrooms, hot water facilities, etc. If the refrigerant is sent through a pipe, it is possible to send the refrigerant to a place other than the air conditioner indoor unit or outdoor unit, and to exchange heat with the refrigerant in the bathroom, hot water supply equipment, etc. it can.
Patent Document 1 discloses an air conditioning / hot water system that sends refrigerant to a hot water supply facility and selectively switches between heat exchange between the outdoor unit and the indoor unit and heat exchange between the outdoor unit and the hot water supply facility. Yes. According to such a system, it is disclosed that hot water can be supplied using an outdoor unit even in a season when the demand for air conditioning is low, and the thermal efficiency of hot water supply is higher than when a heater is used.

しかし、特許文献１の空調・給湯システムは、以下の点で不十分なものであった。（１）給湯のみを考慮し、排湯を考慮していない。例えば浴槽の水を排出する時には、温水のままで下水に流さずに、その温水から熱を冷媒に移すことで温水から放熱させて、室内の暖房に用いることができる。このような排水中の熱の活用は考慮されていない。（２）熱交換を行う対象の一方が室外空気に固定されている。室内空気と水（給湯）との間での直接の熱交換は考慮されていない。室外空気に放熱又は吸熱させることは、室外空気の温度を変えることとなるが、温度を変えた後の室外空気が再利用されるものではない。室内空気と水との間での直接の熱交換が行われ、室外空気との熱交換を行わないならば、熱が効率的に利用される。また、室外機を運転する電力の節約にもなる。このような、室内空気と水との間での直接の熱交換は考慮されていない。   However, the air conditioning / hot water supply system of Patent Document 1 is insufficient in the following points. (1) Only hot water supply is considered, and hot water is not considered. For example, when draining water from a bathtub, it can be used for room heating by radiating heat from the hot water to the refrigerant without flowing it into the sewage while leaving the hot water. Such utilization of heat in waste water is not considered. (2) One of the targets for heat exchange is fixed to outdoor air. Direct heat exchange between room air and water (hot water supply) is not considered. Dissipating or absorbing heat in the outdoor air changes the temperature of the outdoor air, but the outdoor air after changing the temperature is not reused. If heat is directly exchanged between room air and water, and heat is not exchanged with outdoor air, heat is efficiently used. It also saves power to operate the outdoor unit. Such direct heat exchange between room air and water is not considered.

上記の点は、室内機、室外機及び給排湯設備を全体として統合した制御を行うことによって解決する。しかし、このようなシステムは開示されていなかった。   Said point is solved by performing the control which integrated the indoor unit, the outdoor unit, and the hot-water supply equipment as a whole. However, such a system has not been disclosed.

特開２００１−２３５２５２号公報JP 2001-235252 A

解決しようとする課題は、室内機、室外機及び給排湯設備を全体として統合した制御を行うシステムを提供することである。   The problem to be solved is to provide a system that performs control that integrates an indoor unit, an outdoor unit, and a hot and cold water supply system as a whole.

本発明の空調・給排湯システムは、
パイプ内を循環する冷媒と、
前記冷媒と室内空気との間で熱交換を行うための室内空気用熱交換器と、
前記冷媒と室外空気との間で熱交換を行うための室外空気用熱交換器と、
前記冷媒と水との間で熱交換を行うための水用熱交換器と、
前記パイプに付設され、前記冷媒の循環路を変更して、前記室内空気用熱交換器、前記室外空気用熱交換器及び前記水用熱交換器における前記冷媒と室内空気、室外空気及び水との間の熱移動方向を変更する２つ以上の冷媒切替弁と、
前記冷媒切替弁の設定を制御する制御回路とを備え、
前記制御回路は、室内空気から冷媒に熱を移動しかつ冷媒から水に熱を移動する第一の状態と、水から冷媒に熱を移動しかつ冷媒から室内空気に熱を移動する第二の状態とを少なくとも実現することができることを特徴とする。
室内空気用熱交換器、室外空気用熱交換器及び水用熱交換器のすべてが冷媒との間で熱交換を行う。制御回路によって、室内空気、室外空気及び水の間の熱交換を制御することで、課題を解決している。制御は、冷媒切替弁の設定を介して冷媒の循環路を変更することによって実現される。熱交換器は冷媒の流れる方向によって熱の移動方向が制御される。
室外空気を用いずに室内空気と水との間の熱交換を行う２つの状態（第一の状態及び第二の状態）を実現して特許文献１に開示されたシステムの不十分な点を解消している。
ここで「冷媒切替弁」はパイプの接続を変更する弁であり、四方弁は冷媒切替弁である。四方弁の他に２つの三方弁、４つの二方弁によっても冷媒切替弁を構成することができる。 The air conditioning and hot water supply / drainage system of the present invention is
Refrigerant circulating in the pipe,
A heat exchanger for indoor air for performing heat exchange between the refrigerant and room air;
An outdoor air heat exchanger for exchanging heat between the refrigerant and outdoor air;
A water heat exchanger for exchanging heat between the refrigerant and water;
The refrigerant in the indoor air heat exchanger, the outdoor air heat exchanger, and the water heat exchanger attached to the pipe and changing the circulation path of the refrigerant, indoor air, outdoor air, and water Two or more refrigerant switching valves that change the direction of heat transfer between,
A control circuit for controlling the setting of the refrigerant switching valve,
The control circuit includes a first state in which heat is transferred from indoor air to the refrigerant and heat is transferred from refrigerant to water, and a second state in which heat is transferred from water to the refrigerant and heat is transferred from the refrigerant to the room air. The state can be realized at least.
The indoor air heat exchanger, the outdoor air heat exchanger, and the water heat exchanger all exchange heat with the refrigerant. The control circuit solves the problem by controlling heat exchange between indoor air, outdoor air, and water. Control is realized by changing the circulation path of the refrigerant through the setting of the refrigerant switching valve. In the heat exchanger, the direction of heat transfer is controlled by the direction in which the refrigerant flows.
Insufficient point of the system disclosed in Patent Document 1 by realizing two states (first state and second state) in which heat is exchanged between room air and water without using outdoor air It has been resolved.
Here, the “refrigerant switching valve” is a valve that changes the connection of pipes, and the four-way valve is a refrigerant switching valve. In addition to the four-way valve, the refrigerant switching valve can be configured by two three-way valves and four two-way valves.

本発明の空調・給排湯システムは、
前記制御回路によって動作を制御されて前記室外空気用熱交換器から室外に空気を送出する室外送風装置を備え、
前記制御回路は、前記第一の状態及び前記第二の状態において、前記室外送風装置を停止させることができることを特徴とする。
室外送風装置は室外機の一部である。室外空気を用いずに室内空気と水との間の熱交換を行う２つの状態においては、室外に空気を送出する必要がないので、室外送風機を停止させて電力の節約が可能である。 The air conditioning and hot water supply / drainage system of the present invention is
An outdoor blower that is controlled in operation by the control circuit and sends out air from the outdoor air heat exchanger to the outside;
The control circuit can stop the outdoor blower in the first state and the second state.
The outdoor blower is a part of the outdoor unit. In the two states in which heat is exchanged between room air and water without using outdoor air, there is no need to send air to the outside, so that the outdoor fan can be stopped to save power.

本発明の空調・給排湯システムは、
前記室内空気用熱交換器から室内に空気を送出する室外送風装置を備え、
前記第一の状態において室内に冷風を送出し、前記第二の状態において室内に温風を送出することを特徴とする。
室内送風装置は室内機の一部である。第一の状態においては室内を冷房しつつ水を温め、第二の状態においては温水の熱を利用して室内を暖房する。 The air conditioning and hot water supply / drainage system of the present invention is
An outdoor air blower for sending air into the room from the indoor air heat exchanger;
In the first state, cool air is sent out into the room, and in the second state, hot air is sent out into the room.
The indoor air blower is a part of the indoor unit. In the first state, the water is warmed while cooling the room, and in the second state, the room is heated using the heat of the hot water.

本発明の空調・給排湯システムは、
前記水用熱交換器と浴槽との間で水を送受するポンプを備え、
前記第一の状態において前記水用熱交換器から前記浴槽に温水を送り、前記第二の状態で前記浴槽から前記水用熱交換器に温水を送ることを特徴とする。
室内を冷房しつつ浴槽の水を温め、また、室内の暖房のために浴槽排水前の熱を利用する。 The air conditioning and hot water supply / drainage system of the present invention is
A pump for sending and receiving water between the water heat exchanger and the bathtub;
Hot water is sent from the water heat exchanger to the bathtub in the first state, and hot water is sent from the bathtub to the water heat exchanger in the second state.
The water in the bathtub is warmed while the room is being cooled, and the heat before draining the bathtub is used to heat the room.

本発明の空調・給排湯システムは、室内機、室外機及び給排湯設備を全体として統合した制御を行うものであり以下の効果を有する。（１）浴槽からの排水の熱を利用することができる。（２）室外空気との熱交換が最小化され、熱が効率的に利用される。また、室外機を運転する電力を節約することができる。   The air conditioning and hot water supply / discharge hot water system of the present invention performs control that integrates the indoor unit, outdoor unit, and hot water supply / discharge hot water as a whole, and has the following effects. (1) The heat of drainage from the bathtub can be used. (2) Heat exchange with outdoor air is minimized and heat is used efficiently. Moreover, the electric power which drives an outdoor unit can be saved.

図１は、空調・給排湯システムの構成例を示す図である。FIG. 1 is a diagram illustrating a configuration example of an air-conditioning / hot-water supply system. 図２は、空調・給排湯システムの構成例を示す図である。FIG. 2 is a diagram illustrating a configuration example of an air conditioning / hot water supply / drainage system. 図３は、四方弁の設定と放熱・吸熱関係の関係を示す図である。FIG. 3 is a diagram showing the relationship between the setting of the four-way valve and the heat dissipation / heat absorption relationship. 図４は、状態と制御の関係の例を示す図である。FIG. 4 is a diagram illustrating an example of the relationship between the state and the control.

以下、本発明の実施例を示す。   Examples of the present invention will be described below.

図１及び図２は、空調・給排湯システムの構成例を示す図である。冷凍圧縮機１から、冷媒が、パイプ２に送出されて循環する。図において、パイプ２を太線で示し、冷媒の流れる方向を矢印で示してある。パイプ２に沿って室内空気用熱交換器３、室外空気用熱交換器４及び水用熱交換器５が設けられている。室内空気用熱交換器３は冷媒と空気との熱交換を行い、熱交換後の空気が室内送風装置３１によって室内に送出される。室外空気用熱交換器４は冷媒と空気との熱交換を行い、熱交換後の空気が室内送風装置４１によって室外に送出される。水用熱交換器５は冷媒と水との熱交換を行い、ポンプ５１によって浴槽と水用熱交換器５との間で水が送受される。   FIG.1 and FIG.2 is a figure which shows the structural example of an air-conditioning and hot-water supply / drainage system. From the refrigeration compressor 1, the refrigerant is sent to the pipe 2 and circulated. In the figure, the pipe 2 is indicated by a thick line, and the direction in which the refrigerant flows is indicated by an arrow. An indoor air heat exchanger 3, an outdoor air heat exchanger 4, and a water heat exchanger 5 are provided along the pipe 2. The indoor air heat exchanger 3 exchanges heat between the refrigerant and the air, and the air after the heat exchange is sent out indoors by the indoor blower 31. The outdoor air heat exchanger 4 exchanges heat between the refrigerant and the air, and the air after the heat exchange is sent out by the indoor blower 41 to the outside. The water heat exchanger 5 performs heat exchange between the refrigerant and water, and water is transmitted and received between the bathtub and the water heat exchanger 5 by the pump 51.

冷媒の循環経路には、パイプ２に付設して四方弁６１及び６２が設けられている。四方弁６１及び６２の設定を切替えることで、冷媒の循環方向が替わり、室内空気用熱交換器３、室外空気用熱交換器４及び水用熱交換器５への冷媒の流入方向が替わり、冷媒と空気及び水との放熱・吸熱関係（熱の移動方向）が替わる。図３は、四方弁の設定と放熱・吸熱の関係を示す図である。なお、図１には室内空気から冷媒に熱を移動しかつ冷媒から水に熱を移動する場合の四方弁の設定と冷媒の循環経路が示されている。また、図２には四方弁の設定を切り替えて水から冷媒に熱を移動しかつ冷媒から室内空気に熱を移動する場合が示されている。図２において、矢印で示される冷媒の循環方向は図１に対して切り替わり、熱交換器における放熱・吸熱の関係が図１とは異なる。このように四方弁の設定を変更して、冷房／暖房及び湯沸し／冷却排水を切り替えることが可能である。   Four-way valves 61 and 62 are provided along the pipe 2 in the refrigerant circulation path. By switching the setting of the four-way valves 61 and 62, the circulation direction of the refrigerant is changed, and the inflow direction of the refrigerant to the indoor air heat exchanger 3, the outdoor air heat exchanger 4 and the water heat exchanger 5 is changed, The heat dissipation / heat absorption relationship (the direction of heat transfer) between the refrigerant, air and water changes. FIG. 3 is a diagram showing the relationship between the setting of the four-way valve and heat dissipation / heat absorption. FIG. 1 shows a four-way valve setting and a refrigerant circulation path when heat is transferred from indoor air to the refrigerant and heat is transferred from the refrigerant to water. FIG. 2 shows a case where heat is transferred from water to the refrigerant and heat is transferred from the refrigerant to the room air by switching the setting of the four-way valve. In FIG. 2, the circulation direction of the refrigerant indicated by the arrow is switched with respect to FIG. In this way, the setting of the four-way valve can be changed to switch between cooling / heating and boiling / cooling drainage.

制御回路７は、空調機（室内）及び給排湯設備（浴槽）の状態に対応させて、四方弁６１並びに６２の設定、及び、室内送風装置３１、室外送風装置４１並びにポンプ５１の運転／停止を制御する。図４は、状態と制御の関係の例を示す図である。図に示す制御によって冷房、暖房、給湯及び冷却しての排湯が行われる。   The control circuit 7 corresponds to the state of the air conditioner (indoor) and the hot and cold water supply equipment (tub), and sets the four-way valves 61 and 62, and the operation / operation of the indoor blower 31, the outdoor blower 41, and the pump 51. Control the stop. FIG. 4 is a diagram illustrating an example of the relationship between the state and the control. Cooling, heating, hot water supply, and hot water discharge after cooling are performed by the control shown in the figure.

図４において、番号１の状態は、室内空気から冷媒に熱を移動しかつ冷媒から水に熱を移動する第一の状態であり、室外機（室外送風装置）を運転せずに電力を節約して熱を効率的に利用している。
番号２の状態も第一の状態である、番号２の状態においては給湯に必要な吸熱よりも冷房に必要な放熱が大きいことを「冷房中（強）」として示している。この状態では、室外機を運転して、室内空気の放熱のうち給湯設備が吸熱しきれない分だけを室外空気に吸熱させる。
番号６及び番号７の第二の状態においても、上記第一の状態と同様に、必要な場合にのみ室外機を運転する。 In FIG. 4, the state of number 1 is the first state in which heat is transferred from indoor air to the refrigerant and heat is transferred from the refrigerant to water, and power is saved without operating the outdoor unit (outdoor blower). And heat is used efficiently.
The state of No. 2 is also the first state. In the state of No. 2, it is indicated as “during cooling (strong)” that the heat release necessary for cooling is larger than the heat absorption required for hot water supply. In this state, the outdoor unit is operated so that the outdoor air absorbs only the amount of heat radiated from the room air that cannot be absorbed by the hot water supply equipment.
Also in the second state of No. 6 and No. 7, the outdoor unit is operated only when necessary as in the first state.

（実施例の拡張）
本発明の実施には、上記実施例以外の形態も考えられる。
実施例では、室内機、室外機及び給排湯設備をそれぞれ１つとしたが、２つ以上であってもよい。例えば、２つ以上の部屋に室内機を設置すること、浴室と台所とに給排湯設備を設置することが可能である。また、室内機及び給排湯設備において必要とされる熱交換を保証するために２台以上の室外機を設置することもできる。
空調機及び給排湯設備の状態は、図３に示したものに限定されない。実施例の構成では実現されない状態についても、その状態を実現するような循環経路を可能とするように冷媒切替弁を設けることが可能である。 (Extended example)
Embodiments other than the above-described embodiments are also conceivable for implementing the present invention.
In the embodiment, one indoor unit, one outdoor unit, and one hot water supply / drainage facility are provided, but two or more indoor units may be provided. For example, indoor units can be installed in two or more rooms, and hot water supply / drainage facilities can be installed in the bathroom and kitchen. Also, two or more outdoor units can be installed in order to guarantee the heat exchange required in the indoor unit and the hot water supply / drainage facility.
The state of the air conditioner and the hot water supply / drainage equipment is not limited to that shown in FIG. It is possible to provide a refrigerant switching valve so as to enable a circulation path that realizes a state that is not realized in the configuration of the embodiment.

室内機、室外機及び給排湯設備を全体として統合した制御を行う空調・給排湯システムであり、多くの家庭における利用が期待できる。   This is an air conditioning / hot water supply / discharge hot water system that performs integrated control of indoor units, outdoor units, and hot water supply / discharge hot water facilities as a whole, and is expected to be used in many homes.

１ 冷媒圧縮機
２ パイプ
３ 室内空気用熱交換器
３１ 室内送風装置
４ 室外空気用熱交換器
４１ 室外送風装置
５ 水用熱交換器
５１ ポンプ
６１ 四方弁
６２ 四方弁
７ 制御回路 DESCRIPTION OF SYMBOLS 1 Refrigerant compressor 2 Pipe 3 Heat exchanger for indoor air 31 Indoor air blower 4 Heat exchanger for outdoor air 41 Outdoor air blower 5 Heat exchanger for water 51 Pump 61 Four-way valve 62 Four-way valve 7 Control circuit

Claims (4)

パイプ内を循環する冷媒と、
前記冷媒と室内空気との間で熱交換を行うための室内空気用熱交換器と、
前記冷媒と室外空気との間で熱交換を行うための室外空気用熱交換器と、
前記冷媒と水との間で熱交換を行うための水用熱交換器と、
前記パイプに付設され、前記冷媒の循環路を変更して、前記室内空気用熱交換器、前記室外空気用熱交換器及び前記水用熱交換器における前記冷媒と室内空気、室外空気及び水との間の熱移動方向を変更する２つ以上の冷媒切替弁と、
前記冷媒切替弁の設定を制御する制御回路とを備え、
前記制御回路は、室内空気から冷媒に熱を移動しかつ冷媒から水に熱を移動する第一の状態と、水から冷媒に熱を移動しかつ冷媒から室内空気に熱を移動する第二の状態とを少なくとも実現することができることを特徴とする、空調・給排湯システム。 Refrigerant circulating in the pipe,
A heat exchanger for indoor air for performing heat exchange between the refrigerant and room air;
An outdoor air heat exchanger for exchanging heat between the refrigerant and outdoor air;
A water heat exchanger for exchanging heat between the refrigerant and water;
The refrigerant in the indoor air heat exchanger, the outdoor air heat exchanger, and the water heat exchanger attached to the pipe and changing the circulation path of the refrigerant, indoor air, outdoor air, and water Two or more refrigerant switching valves that change the direction of heat transfer between,
A control circuit for controlling the setting of the refrigerant switching valve,
The control circuit includes a first state in which heat is transferred from indoor air to the refrigerant and heat is transferred from refrigerant to water, and a second state in which heat is transferred from water to the refrigerant and heat is transferred from the refrigerant to the room air. An air conditioning / supply / drain hot water system characterized in that at least the state can be realized. 前記制御回路によって動作を制御されて前記室外空気用熱交換器から室外に空気を送出する室外送風装置を備え、
前記制御回路は、前記第一の状態及び前記第二の状態において、前記室外送風装置を停止させることができることを特徴とする、請求項１に記載の空調・給排湯システム。 An outdoor blower that is controlled in operation by the control circuit and sends out air from the outdoor air heat exchanger to the outside;
The said control circuit can stop the said outdoor air blower in said 1st state and said 2nd state, The air-conditioning and hot-water supply / drainage system of Claim 1 characterized by the above-mentioned. 前記室内空気用熱交換器から室内に空気を送出する室内送風装置を備え、
前記第一の状態において室内に冷風を送出し、前記第二の状態において室内に温風を送出することを特徴とする、請求項１又は２に記載の空調・給排湯システム。 An indoor air blower for sending air into the room from the indoor air heat exchanger;
The air conditioning / hot water supply / discharge hot water system according to claim 1 or 2, wherein cold air is sent into the room in the first state and hot air is sent out into the room in the second state. 前記水用熱交換器と浴槽との間で水を送受するポンプを備え、
前記第一の状態において前記水用熱交換器から前記浴槽に温水を送り、前記第二の状態で前記浴槽から前記水用熱交換器に温水を送ることを特徴とする、請求項１〜３のいずれか１項に記載の空調・給排湯システム。 A pump for sending and receiving water between the water heat exchanger and the bathtub;
The hot water is sent from the water heat exchanger to the bathtub in the first state, and the hot water is sent from the bathtub to the water heat exchanger in the second state. The air conditioning / supply / drain hot water system according to any one of the above.
JP2011254650A 2011-11-22 2011-11-22 Air conditioning/hot water supplying/discharging system Pending JP2013108687A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106958959A (en) * 2017-04-18 2017-07-18 天津大学 Double end air source heat pump system operation switching controls and method

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Publication number Priority date Publication date Assignee Title
US4207752A (en) * 1978-09-06 1980-06-17 Michael Schwarz Method and apparatus for recovering heat from waste water
JPS55165458A (en) * 1979-06-08 1980-12-23 Matsushita Electric Ind Co Ltd Cooling heating hot water feeder
JPS5969674A (en) * 1982-10-13 1984-04-19 サンデン株式会社 Heat pump type air-conditioning water heater
JPH01314868A (en) * 1988-06-15 1989-12-20 Hitachi Ltd Heat pump type heater-cooler

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4207752A (en) * 1978-09-06 1980-06-17 Michael Schwarz Method and apparatus for recovering heat from waste water
JPS55165458A (en) * 1979-06-08 1980-12-23 Matsushita Electric Ind Co Ltd Cooling heating hot water feeder
JPS5969674A (en) * 1982-10-13 1984-04-19 サンデン株式会社 Heat pump type air-conditioning water heater
JPH01314868A (en) * 1988-06-15 1989-12-20 Hitachi Ltd Heat pump type heater-cooler

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106958959A (en) * 2017-04-18 2017-07-18 天津大学 Double end air source heat pump system operation switching controls and method
CN106958959B (en) * 2017-04-18 2019-04-09 天津大学 Double end air source heat pump system operation switching controls and method

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