JP2001235252A - Air-conditioning and hot water feeding system - Google Patents
Air-conditioning and hot water feeding systemInfo
- Publication number
- JP2001235252A JP2001235252A JP2000046241A JP2000046241A JP2001235252A JP 2001235252 A JP2001235252 A JP 2001235252A JP 2000046241 A JP2000046241 A JP 2000046241A JP 2000046241 A JP2000046241 A JP 2000046241A JP 2001235252 A JP2001235252 A JP 2001235252A
- Authority
- JP
- Japan
- Prior art keywords
- hot water
- refrigerant
- electric
- heater
- water supply
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 186
- 238000004378 air conditioning Methods 0.000 title claims abstract description 14
- 239000003507 refrigerant Substances 0.000 claims abstract description 56
- 238000005057 refrigeration Methods 0.000 claims description 23
- 239000008400 supply water Substances 0.000 claims description 13
- 238000001514 detection method Methods 0.000 claims description 4
- 239000008236 heating water Substances 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 abstract description 15
- 230000008014 freezing Effects 0.000 abstract 2
- 238000007710 freezing Methods 0.000 abstract 2
- 238000001816 cooling Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 230000006870 function Effects 0.000 description 2
- 102100031083 Uteroglobin Human genes 0.000 description 1
- 108090000203 Uteroglobin Proteins 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Landscapes
- Heat-Pump Type And Storage Water Heaters (AREA)
- Air Conditioning Control Device (AREA)
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】この発明は、空気調和機およ
び電気温水器を備えた空調・給湯システムに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioning / hot water supply system provided with an air conditioner and an electric water heater.
【0002】[0002]
【従来の技術】一般に、電気温水器は、安価な深夜電力
を利用して夜間に電気ヒータを動作させ、その電気ヒー
タの発熱により貯湯槽内の水を加熱して湯を溜め、溜め
た湯を昼間の給湯に利用する機器である。2. Description of the Related Art Generally, an electric water heater operates an electric heater at night using inexpensive late-night electric power, and heats water in a hot water storage tank by the heat generated by the electric heater to store hot water. Is a device used for hot water supply during the day.
【0003】空気調和機いわゆるエアコンは、室外機お
よび室内機にヒートポンプ式冷凍サイクルを搭載し、夏
期には室内空気の熱を奪ってそれを室外に放出すること
により冷房を行い、冬期には室外空気から熱を汲み上げ
てそれを室内に放出することにより暖房を行う。An air conditioner, a so-called air conditioner, has a heat pump refrigeration cycle installed in an outdoor unit and an indoor unit. In summer, heat is taken from indoor air to release it to the outside, thereby cooling the room. Heating is performed by drawing heat from the air and releasing it into the room.
【0004】[0004]
【発明が解決しようとする課題】電気温水器は、ヒータ
で加熱するため加熱効率は約0.9であり、ガスや石油
給湯器の効率を若干上回る程度であった。Since the electric water heater is heated by the heater, the heating efficiency is about 0.9, which is slightly higher than the efficiency of gas or oil water heaters.
【0005】一方、空気調和機は、冷暖房に使うのが主
であり、中間期には休止したままとなることが多く、年
間で見ると稼働率がかなり低い。[0005] On the other hand, air conditioners are mainly used for cooling and heating. In many cases, the air conditioners are stopped during the interim period.
【0006】この発明は上記の事情を考慮したもので、
その目的とするところは、空気調和機のヒートポンプ式
冷凍サイクルを利用して電気温水器の水を高効率に加熱
することができ、しかも空気調和機の稼働率を高めるこ
とができる省エネルギ性および経済性にすぐれた空調・
給湯システムを提供することにある。[0006] The present invention has been made in view of the above circumstances,
The objective is to use the heat pump refrigeration cycle of the air conditioner to heat the water of the electric water heater with high efficiency, and to increase the operation rate of the air conditioner. Air-conditioning with excellent economy
It is to provide a hot water supply system.
【0007】[0007]
【課題を解決するための手段】請求項1に係る発明の空
調・給湯システムは、室外機および室内機にヒートポン
プ式冷凍サイクルを搭載してなる空気調和機と、上記ヒ
ートポンプ式冷凍サイクルに接続し冷凍サイクルの冷媒
と熱交換させ貯湯用の循環水を加熱させるための給湯用
水配管および冷媒配管を備えた給湯熱交換器を有する貯
湯分岐ユニットと、この貯湯分岐ユニットの給湯熱交換
器と水配管で連結される貯湯槽を備えた電気温水器とを
備える。そして、貯湯分岐ユニットは、上記ヒートポン
プ式冷凍サイクルにおける上記室外機および上記室内機
からの接続配管と接続し、上記ヒートポンプ式冷凍サイ
クルにおける上記室外機と上記室内機とを連結する第1
の冷媒循環サイクルまたは上記室外機と上記給湯熱交換
器とを連結する第2の冷媒循環サイクルを構成するとと
もに、この各冷媒循環サイクルを切換える冷媒流路切換
手段と、上記冷媒循環サイクルのいずれか一方の流路を
選択する選択手段とを備える。An air conditioning / hot water supply system according to the present invention is connected to an air conditioner having an outdoor unit and an indoor unit equipped with a heat pump refrigeration cycle, and connected to the heat pump refrigeration cycle. A hot-water supply branch unit having a hot-water supply heat exchanger having a hot-water supply water pipe and a refrigerant pipe for exchanging heat with a refrigerant of a refrigeration cycle to heat hot-water circulating water, a hot-water supply heat exchanger and a water pipe of the hot-water storage branch unit And an electric water heater provided with a hot water storage tank connected with the water heater. And the hot water storage branching unit is connected to the connection pipe from the outdoor unit and the indoor unit in the heat pump refrigeration cycle, and connects the outdoor unit and the indoor unit in the heat pump refrigeration cycle to the first.
A refrigerant circulation cycle or a second refrigerant circulation cycle connecting the outdoor unit and the hot water supply heat exchanger, and a refrigerant flow path switching means for switching each refrigerant circulation cycle; and any one of the refrigerant circulation cycles Selecting means for selecting one of the flow paths.
【0008】請求項2に係る発明の空調・給湯システム
は、請求項1に係る発明において、電気温水器が、貯湯
槽内の水を加熱するための電気ヒータを有する。貯湯分
岐ユニットの選択手段は、上記空気調和機に対し設定さ
れる運転モードおよび上記電気ヒータの通電状態に基づ
いて選択を行う。[0008] In an air conditioning and hot water supply system according to a second aspect of the present invention, in the first aspect, the electric water heater has an electric heater for heating water in the hot water storage tank. The selecting means of the hot water storage branching unit makes a selection based on an operation mode set for the air conditioner and an energized state of the electric heater.
【0009】請求項3に係る空調・給湯システムは、請
求項1に係る発明において、電気温水器が、貯湯槽内の
水を加熱するための電気ヒータを有する。貯湯分岐ユニ
ットは、上記室内機の制御器と上記室外機の制御器とを
接続する電気配線と、上記電気温水器の制御器に対し接
続する運転信号線と、電源からの電源配線を接続するた
めの入力端子と、この入力端子に配線接続した出力端子
と、この出力端子と前記電気温水器とを接続する電源配
線と、上記入力端子と上記出力端子との間の配線に設け
た電流センサとを備える。According to a third aspect of the present invention, in the air conditioning / hot water supply system according to the first aspect, the electric water heater has an electric heater for heating water in the hot water storage tank. The hot water storage branching unit connects an electric wiring connecting the controller of the indoor unit and a controller of the outdoor unit, an operation signal line connected to the controller of the electric water heater, and a power supply line from a power supply. Input terminal, an output terminal connected to the input terminal, a power supply line connecting the output terminal to the electric water heater, and a current sensor provided on a line between the input terminal and the output terminal. And
【0010】請求項4に係る空調・給湯システムは、請
求項3に係る発明において、貯湯分岐ユニットが、給湯
熱交換器と電気温水器を連結させる水配管に介在させた
水循環用ポンプと、冷媒配管を流れる冷媒の温度を検知
する冷媒温度センサと、水配管を流れる循環水の温度を
検知する水温度センサと、分岐制御器とをさらに備え
る。そして、分岐制御器は、上記室内機からの運転モー
ド信号および上記電流センサの検知結果に基づいて上記
冷媒流路切換手段および上記水循環用ポンプを制御す
る。According to a fourth aspect of the present invention, in the air conditioning / hot water supply system according to the third aspect, the hot water storage branch unit includes a water circulation pump interposed in a water pipe connecting the hot water supply heat exchanger and the electric water heater, and a refrigerant. It further includes a refrigerant temperature sensor for detecting the temperature of the refrigerant flowing through the pipe, a water temperature sensor for detecting the temperature of circulating water flowing through the water pipe, and a branch controller. The branch controller controls the refrigerant flow switching means and the water circulation pump based on an operation mode signal from the indoor unit and a detection result of the current sensor.
【0011】[0011]
【発明の実施の形態】以下、この発明の一実施形態につ
いて図面を参照して説明する。図1に示すように、室外
機1に貯湯分岐ユニット2を冷媒配管により接続し、そ
の貯湯分岐ユニット2に室内機3を冷媒配管接続し且つ
電気温水器4を給湯用水配管接続する。電気温水器4
は、筐体外周面に運転操作用の操作部5を有する。DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. As shown in FIG. 1, a hot water storage branch unit 2 is connected to an outdoor unit 1 by a refrigerant pipe, an indoor unit 3 is connected to the hot water storage branch unit 2 by a refrigerant pipe, and an electric water heater 4 is connected to a hot water supply water pipe. Electric water heater 4
Has an operation unit 5 for driving operation on the outer peripheral surface of the housing.
【0012】室外機1と室内機3とで空気調和機を成
し、その室外機1および室内機3にヒートポンプ式冷凍
サイクルを搭載した構成となっている。さらに、室外機
1および室内機3との間のヒートポンプ式冷凍サイクル
の配管に貯湯分岐ユニット2における後述の給湯熱交換
器26を連通した構成となっている。The outdoor unit 1 and the indoor unit 3 form an air conditioner, and the outdoor unit 1 and the indoor unit 3 are equipped with a heat pump refrigeration cycle. Further, the pipe of the heat pump refrigeration cycle between the outdoor unit 1 and the indoor unit 3 is configured to communicate with a hot water supply heat exchanger 26 described later in the hot water storage branching unit 2.
【0013】ヒートポンプ式冷凍サイクル、貯湯分岐ユ
ニット2、および電気温水器4の具体的な構成を図2に
示す。FIG. 2 shows a specific configuration of the heat pump refrigeration cycle, the hot water storage branching unit 2, and the electric water heater 4.
【0014】室外機1は、圧縮機11、四方弁12、電
動膨張弁(PMV:パルスモータバルブ)13、および
室外熱交換器14などを備える。室内機3は、室内熱交
換器31などを備える。The outdoor unit 1 includes a compressor 11, a four-way valve 12, an electric expansion valve (PMV: pulse motor valve) 13, an outdoor heat exchanger 14, and the like. The indoor unit 3 includes an indoor heat exchanger 31 and the like.
【0015】上記圧縮機11の吐出口に四方弁12を介
して室内熱交換器31を配管接続し、その室内熱交換器
31に電動膨張弁(PMV:パルスモータバルブ)13
を介して室外熱交換器14を配管接続する。そして、室
外熱交換器14を上記四方弁12を介して圧縮機11の
吸込口に接続し、ヒートポンプ式冷凍サイクルを構成し
ている。An indoor heat exchanger 31 is connected to the discharge port of the compressor 11 via a four-way valve 12 by piping, and an electric expansion valve (PMV: pulse motor valve) 13 is connected to the indoor heat exchanger 31.
The outdoor heat exchanger 14 is connected via a pipe. Then, the outdoor heat exchanger 14 is connected to the suction port of the compressor 11 via the four-way valve 12 to constitute a heat pump refrigeration cycle.
【0016】貯湯分岐ユニット2では、四方弁12と室
内熱交換器31との間の配管に開閉弁(二方弁)21を
設け、室内熱交換器31と電動膨張弁13との間の配管
に開閉弁22を設ける。さらに、四方弁12と二方弁2
1との間の配管に冷媒配管25の一端を接続し、その一
端部に開閉弁23を設けるとともに、冷媒配管25の他
端を開閉弁22と電動膨張弁13との間の配管に接続
し、その他端部に開閉弁24を設ける。In the hot water storage branching unit 2, an on-off valve (two-way valve) 21 is provided in a pipe between the four-way valve 12 and the indoor heat exchanger 31, and a pipe between the indoor heat exchanger 31 and the electric expansion valve 13 is provided. Is provided with an on-off valve 22. Further, the four-way valve 12 and the two-way valve 2
1 is connected to one end of a refrigerant pipe 25, and an open / close valve 23 is provided at one end thereof, and the other end of the refrigerant pipe 25 is connected to a pipe between the open / close valve 22 and the electric expansion valve 13. An opening / closing valve 24 is provided at the other end.
【0017】そして、冷媒配管25において、開閉弁2
3,24の相互間に給湯熱交換器26の冷媒配管(一次
側管)を連通する。給湯熱交換器26は貯湯用の循環水
を加熱させるための給湯用水配管(二次側管)をさらに
備えており、その給湯用水配管に給湯用水配管27を連
通し、その給湯用水配管27の一端を水循環用ポンプ2
8を介して電気温水器4における貯湯槽41に連結する
とともに、給湯用水配管27の他端を同じく貯湯槽41
に連結する。給湯熱交換器26は、冷媒と貯湯用の潤滑
水との熱交換を行う。In the refrigerant pipe 25, the on-off valve 2
A refrigerant pipe (primary side pipe) of the hot water supply heat exchanger 26 is communicated between the pipes 3 and 24. The hot water supply heat exchanger 26 further includes a hot water supply water pipe (secondary pipe) for heating the circulating water for storing hot water, and the hot water supply water pipe 27 communicates with the hot water supply water pipe 27. Pump 2 for water circulation at one end
8 and the other end of the hot water supply water pipe 27 is connected to the hot water tank 41 in the electric water heater 4.
Connect to The hot water supply heat exchanger 26 performs heat exchange between the refrigerant and lubricating water for storing hot water.
【0018】開閉弁21,22,23,24は、室外機
1および室内機3からの接続配管と接続した冷媒配管と
共に、室外機1と室内機3とを連結する第1の冷媒循環
サイクル、または室外機1と給湯熱交換器26とを連結
する第2の冷媒循環サイクルを構成するとともに、この
各冷媒循環サイクルを切換える冷媒流路切換手段として
機能する。The on-off valves 21, 22, 23, and 24 are connected to a refrigerant pipe connected to a connection pipe from the outdoor unit 1 and the indoor unit 3 together with a first refrigerant circulation cycle connecting the outdoor unit 1 and the indoor unit 3. Alternatively, it constitutes a second refrigerant circulation cycle connecting the outdoor unit 1 and the hot water supply heat exchanger 26, and functions as a refrigerant flow switching means for switching each refrigerant circulation cycle.
【0019】冷媒配管25に冷媒温度検知用の冷媒温度
センサTrを取付け、給湯熱交換器26の二次側管と水
循環用ポンプ28との間の給湯用水配管27に循環水温
度検知用の水温センサTwを取付けている。A refrigerant temperature sensor Tr for detecting a refrigerant temperature is attached to the refrigerant pipe 25, and a water temperature for detecting a circulating water temperature is supplied to a water supply water pipe 27 between a secondary pipe of the hot water supply heat exchanger 26 and a water circulation pump 28. The sensor Tw is attached.
【0020】電気温水器4では、給湯用水配管27の一
端を水抜き用の開閉弁43を介して排水口(図示しな
い)に連通するとともに、給湯用水配管27の他端部を
給湯制御用の開閉弁44を介して外部に導出する。In the electric water heater 4, one end of the hot water supply pipe 27 communicates with a drain port (not shown) through an open / close valve 43 for draining water, and the other end of the hot water supply pipe 27 is used for hot water supply control. It is led out through the on-off valve 44.
【0021】図3は、室外機1、貯湯分岐ユニット2、
室内機3、電気温水器4に搭載している制御回路であ
る。室外機1は、室外制御器10を備え、その室外制御
器10に圧縮機モータ11M、四方弁12、電動膨張弁
13を接続している。FIG. 3 shows an outdoor unit 1, a hot water storage branch unit 2,
This is a control circuit mounted on the indoor unit 3 and the electric water heater 4. The outdoor unit 1 includes an outdoor controller 10, and a compressor motor 11 </ b> M, a four-way valve 12, and an electric expansion valve 13 are connected to the outdoor controller 10.
【0022】貯湯分岐ユニット2は、分岐制御器20を
備え、その分岐制御器20に開閉弁21,22,23,
24、ポンプモータ28M、冷媒温度センサTr、水温
センサTwを接続している。The hot water storage branch unit 2 includes a branch controller 20, and the branch controller 20 includes on-off valves 21, 22, 23,
24, a pump motor 28M, a refrigerant temperature sensor Tr, and a water temperature sensor Tw are connected.
【0023】室内機3は、室内制御器30を備え、その
室内制御器30に運転モード設定・表示用の操作表示部
31を接続している。電気温水器4は、電温制御器40
を備え、その電温制御器40に電気ヒータ42および開
閉弁43,44を接続している。さらに、電温制御器4
0と分岐制御器20とを運転信号線50により接続して
いる。The indoor unit 3 includes an indoor controller 30, and an operation display unit 31 for setting and displaying an operation mode is connected to the indoor controller 30. The electric water heater 4 includes an electric temperature controller 40
And an electric heater 42 and on-off valves 43 and 44 are connected to the electric temperature controller 40. Further, the electric temperature controller 4
0 and the branch controller 20 are connected by an operation signal line 50.
【0024】室内制御器30は商用交流電源100Vに
接続し、その室内制御器30から室外制御器10にかけ
て、分岐制御器20を介して、電源電圧供給用の電源配
線ACLおよびデータ送受信用の電気配線(シリアル信
号ライン)SLを接続する。The indoor controller 30 is connected to a commercial AC power supply 100V, and extends from the indoor controller 30 to the outdoor controller 10 via a branch controller 20 to a power supply line ACL for supplying a power supply voltage and an electric signal for transmitting and receiving data. Wiring (serial signal line) SL is connected.
【0025】分岐制御器20は、電源配線により専用の
商用交流電源100Vに接続する。また、電源用の入力
端子54aおよび出力端子54bを有し、その入力端子
54aを電源配線により商用交流電源200Vに接続
し、出力端子54bを電源配線51により電温制御器4
0に接続している。分岐制御器20では、入力端子54
aと出力端子54bとの間の配線に電流センサ29を取
付け、その電流センサ29の出力により、電気温水器4
の電気ヒータ42への通電状態を検知するようにしてい
る。The branch controller 20 is connected to a dedicated commercial AC power supply 100 V via power supply wiring. It also has an input terminal 54a and an output terminal 54b for a power supply, the input terminal 54a is connected to a commercial AC power supply 200V by a power supply wiring, and the output terminal 54b is connected to the electric temperature controller 4 by a power supply wiring 51.
Connected to 0. In the branch controller 20, the input terminal 54
a and the output terminal 54b, the current sensor 29 is attached to the wiring, and the output of the current sensor 29 causes the electric water heater 4
Of the electric heater 42 is detected.
【0026】分岐制御器20は、CPU52およびメモ
リ53を有し、メモリ53に図4に示す運転モード決定
条件を記憶している。The branch controller 20 has a CPU 52 and a memory 53, and stores the operation mode determination conditions shown in FIG.
【0027】運転モード決定条件は、室内制御器30か
ら室外制御器10へ送られる運転モード信号の内容、お
よび電流センサ29の検知結果(電気温水器4の電気ヒ
ータ42への通電状態)を判定基準とし、それに空気調
和機の運転モードおよび電気温水器4の運転モードを対
応付けている。The operation mode determination condition is to determine the contents of the operation mode signal sent from the indoor controller 30 to the outdoor controller 10 and the detection result of the current sensor 29 (the state of energization of the electric heater 42 of the electric water heater 4). The operation mode of the air conditioner and the operation mode of the electric water heater 4 are associated with the reference.
【0028】CPU52は、主要な機能として次の
[1][2]の手段を備える。 [1]室内制御器30から室外制御器10へ送られる運
転モード信号の内容(冷房・暖房・ドライ等)を捕ら
え、その内容および電流センサ29の検知結果(電気ヒ
ータ42への通電状態)に応じてメモリ53内の運転モ
ード決定条件を参照することにより、空気調和機の運転
モードおよび電気温水器4の運転モードを決定する決定
手段。The CPU 52 has the following means [1] and [2] as main functions. [1] Capturing the contents (cooling, heating, dry, etc.) of the operation mode signal sent from the indoor controller 30 to the outdoor controller 10 and taking the contents and the detection result of the current sensor 29 (the state of energization to the electric heater 42). Determining means for determining the operation mode of the air conditioner and the operation mode of the electric water heater 4 by referring to the operation mode determination conditions in the memory 53 accordingly.
【0029】[2]決定手段の決定内容に応じて、貯湯
分岐ユニット2の開閉弁21,22,23,24および
水循環用ポンプ28を制御し、室外機1と室内機3とを
連結する第1の冷媒循環サイクルおよび室外機1と給湯
熱交換器26とを連結する第2の冷媒循環サイクルのい
ずれか一方の流路を選択する選択手段。[2] The opening / closing valves 21, 22, 23, 24 and the water circulation pump 28 of the hot water branch unit 2 are controlled in accordance with the content of the determination by the determining means, and the outdoor unit 1 and the indoor unit 3 are connected. Selection means for selecting one of the flow paths of the first refrigerant circulation cycle and the second refrigerant circulation cycle connecting the outdoor unit 1 and the hot water supply heat exchanger 26.
【0030】つぎに、上記の構成の作用を説明する。室
内制御器30から室外制御器10へ伝送される運転モー
ド信号の内容が冷房・暖房・ドライのいずれかであれ
ば、分岐制御器20は室外機1と室内機3との間の冷媒
循環を選択するとともに室外制御器10に運転指令を送
り、冷房・暖房・ドライのいずれかの空調運転を実行す
る。Next, the operation of the above configuration will be described. If the content of the operation mode signal transmitted from the indoor controller 30 to the outdoor controller 10 is any of cooling, heating, and dry, the branch controller 20 controls the circulation of the refrigerant between the outdoor unit 1 and the indoor unit 3. At the same time, an operation command is sent to the outdoor controller 10 to execute any of the air conditioning operations of cooling, heating, and drying.
【0031】たとえば、運転モード信号の内容が“暖
房”の場合、分岐制御器20は、図2に示すように、貯
湯分岐ユニット2の開閉弁21,22を開いて開閉弁2
3,24を閉じ(図示黒塗り)、室外機1と室内機3と
の間で矢印方向の冷媒循環サイクルを形成するととも
に、室外制御器10に暖房運転指令を送る。For example, when the content of the operation mode signal is "heating", the branch controller 20 opens the on-off valves 21 and 22 of the hot-water storage branch unit 2 and opens the on-off valve 2 as shown in FIG.
3 and 24 are closed (shown in black), a refrigerant circulation cycle is formed between the outdoor unit 1 and the indoor unit 3 in the direction of the arrow, and a heating operation command is sent to the outdoor controller 10.
【0032】こうして、外気の熱を室外熱交換器14で
汲み上げ、その汲み上げ熱を暖房熱として室内熱交換器
31から被空調室内へ供給する。Thus, the heat of the outside air is pumped up by the outdoor heat exchanger 14, and the pumped heat is supplied as heating heat from the indoor heat exchanger 31 to the room to be air-conditioned.
【0033】夜間、深夜電力時間帯になると、電気温水
器4は電気ヒータ42を起動し、その電気ヒータ42の
発熱により貯湯槽41内の水を加熱せしめる。いわゆる
ヒータ貯湯運転の実行となる。At nighttime, when the power is in the middle of night, the electric water heater 4 activates the electric heater 42 and heats the water in the hot water storage tank 41 by the heat generated by the electric heater 42. This is a so-called heater hot-water storage operation.
【0034】このとき、分岐制御器20と電温制御器4
0との間の電源配線51にヒータ動作電流が流れ、電流
センサ29の出力信号が論理“1”となる。分岐制御器
20は、電流センサ29の出力が論理“1”となること
で、電気ヒータ42が動作状態に入ったことを察知す
る。At this time, the branch controller 20 and the electric temperature controller 4
The heater operation current flows through the power supply wiring 51 between 0 and 0, and the output signal of the current sensor 29 becomes logic "1". The branch controller 20 detects that the electric heater 42 has entered the operating state when the output of the current sensor 29 becomes logic “1”.
【0035】電気ヒータ42の動作中、運転モード信号
の内容が停止になると、分岐制御器20は、図5に示す
ように、貯湯分岐ユニット2の開閉弁23,24を閉じ
て(図示黒塗り)、開閉弁21,22を開き、室外機1
と貯湯槽熱交換器26との間で矢印方向の冷媒循環サイ
クルを形成するとともに(室内熱交換器31には冷媒を
流さない)、循環水ポンプ28を起動して電気温水器4
の貯湯槽41内の水を給湯用水配管27および給湯熱交
換器26を通して循環させる。さらに分岐制御器20
は、電温制御器40にヒータ停止指令を送って電気ヒー
タ42の動作を停止する。When the operation mode signal is stopped during the operation of the electric heater 42, the branch controller 20 closes the open / close valves 23 and 24 of the hot water storage branch unit 2 as shown in FIG. ), Open the on-off valves 21 and 22 and open the outdoor unit 1
A refrigerant circulation cycle in the direction of the arrow is formed between the water heater and the hot water tank heat exchanger 26 (no refrigerant flows through the indoor heat exchanger 31), and the circulating water pump 28 is started to activate the electric water heater 4
In the hot water storage tank 41 is circulated through the hot water supply water pipe 27 and the hot water supply heat exchanger 26. Further, the branch controller 20
Sends a heater stop command to the electric temperature controller 40 to stop the operation of the electric heater 42.
【0036】こうして、外気の熱を室外熱交換器14で
熱を汲み上げ、その汲み上げ熱を給湯熱交換器26を介
して貯湯槽41内の水に供給し、貯湯槽41内の水を加
熱せしめる。いわゆるヒートポンプ貯湯運転の実行とな
る。Thus, the heat of the outside air is pumped up by the outdoor heat exchanger 14, the pumped heat is supplied to the water in the hot water storage tank 41 via the hot water supply heat exchanger 26, and the water in the hot water storage tank 41 is heated. . This is a so-called heat pump hot water storage operation.
【0037】このとき、電源ライン51にヒータ動作電
流が流れなくなり、電流センサ29の出力信号が論理
“0”となる。At this time, the heater operating current stops flowing through the power supply line 51, and the output signal of the current sensor 29 becomes logic "0".
【0038】このヒートポンプ貯湯運転では、ヒートポ
ンプ暖房で知られているように効率(COP)が“3”
から“4”と高く、電気ヒータ発熱の場合よりも高効率
の加熱を行うことができる。In this heat pump hot water storage operation, the efficiency (COP) is "3" as is known for heat pump heating.
To "4", which makes it possible to perform heating with higher efficiency than in the case of electric heater heat generation.
【0039】また、ヒートポンプ貯湯運転時、貯湯槽4
1からの循環水の温度を水温センサTwが検知してお
り、その検知温度が予め定めた設定値たとえば55℃以
上に上昇すると、分岐制御器20は、室外制御器10に
停止指令を送るとともに、電温制御器40に対するヒー
タ停止指令を解除する。これにより、ヒートポンプ貯湯
運転が終了となる。なお、冷房時の冷媒の流れを図6に
示している。Also, when the heat pump hot water storage operation is performed, the hot water storage tank 4
When the temperature of the circulating water from 1 is detected by the water temperature sensor Tw, and the detected temperature rises to a predetermined set value, for example, 55 ° C. or more, the branch controller 20 sends a stop command to the outdoor controller 10 and Then, the heater stop command to the electric temperature controller 40 is released. This ends the heat pump hot water storage operation. FIG. 6 shows the flow of the refrigerant during cooling.
【0040】以上のように、ヒートポンプ式冷凍サイク
ルに貯湯分岐ユニット2を設け、その貯湯分岐ユニット
2によって室外機1および電気温水器4を制御すること
により、室外機1を使って電気温水器4内の水を高効率
に加熱できる。ひいては、電気温水器4のランニングコ
ストが安くなるとともに、室外機1の稼働率を上げるこ
とができ、省エネルギ性および経済性にすぐれたものと
なる。As described above, the hot water branching unit 2 is provided in the heat pump type refrigeration cycle, and the outdoor unit 1 and the electric water heater 4 are controlled by the hot water branching unit 2. The water inside can be heated with high efficiency. As a result, the running cost of the electric water heater 4 can be reduced, and the operation rate of the outdoor unit 1 can be increased, resulting in excellent energy saving and economic efficiency.
【0041】なお、この発明は上記実施形態に限定され
るものではなく、要旨を変えない範囲で種々変形実施可
能である。It should be noted that the present invention is not limited to the above embodiment, and various modifications can be made without departing from the scope of the invention.
【0042】[0042]
【発明の効果】以上述べたようにこの発明によれば、室
外機および室内機にヒートポンプ式冷凍サイクルを搭載
してなる空気調和機と、上記ヒートポンプ式冷凍サイク
ルに接続し冷凍サイクルの冷媒と熱交換させ貯湯用の循
環水を加熱させるための給湯用水配管および冷媒配管を
備えた給湯熱交換器を有する貯湯分岐ユニットと、この
貯湯分岐ユニットの給湯熱交換器と給湯用水配管で連結
される貯湯槽を備えた電気温水器とを具備し、貯湯分岐
ユニットは、上記ヒートポンプ式冷凍サイクルにおける
上記室外機および上記室内機からの接続配管と接続し、
上記ヒートポンプ式冷凍サイクルにおける上記室外機と
上記室内機とを連結する第1の冷媒循環サイクルまたは
上記室外機と上記給湯熱交換器とを連結する第2の冷媒
循環サイクルを構成するとともに、この各冷媒循環サイ
クルを切換える冷媒流路切換手段と、上記冷媒循環サイ
クルのいずれか一方の流路を選択する選択手段とを備え
たので、空気調和機のヒートポンプ式冷凍サイクルを利
用して電気温水器の水を高効率に加熱することができ、
しかも空気調和機の稼働率を高めることができる省エネ
ルギ性および経済性にすぐれた空調・給湯システムを提
供できる。As described above, according to the present invention, an air conditioner in which a heat pump refrigeration cycle is mounted on an outdoor unit and an indoor unit, and refrigerant and heat of the refrigeration cycle connected to the heat pump refrigeration cycle. A hot water supply branch unit having a hot water supply heat exchanger provided with a hot water supply water pipe and a refrigerant pipe for exchanging and heating hot water storage circulating water, and hot water storage connected to the hot water supply heat exchanger and the hot water supply water pipe of the hot water storage branch unit An electric water heater having a tank, and the hot water storage branch unit is connected to a connection pipe from the outdoor unit and the indoor unit in the heat pump refrigeration cycle,
A first refrigerant circulation cycle connecting the outdoor unit and the indoor unit in the heat pump refrigeration cycle or a second refrigerant circulation cycle connecting the outdoor unit and the hot water supply heat exchanger, A refrigerant flow switching means for switching the refrigerant circulation cycle, and a selection means for selecting any one of the refrigerant circulation cycles, the electric water heater using a heat pump refrigeration cycle of an air conditioner. Water can be heated with high efficiency,
In addition, it is possible to provide an air-conditioning and hot water supply system that can improve the operation rate of the air conditioner and that is excellent in energy saving and economy.
【図1】一実施形態の全体的な構成を示す図。FIG. 1 is a diagram showing an overall configuration of an embodiment.
【図2】一実施形態の具体的な構成および暖房時の冷媒
の流れを示す図。FIG. 2 is a diagram showing a specific configuration of one embodiment and a flow of a refrigerant during heating.
【図3】一実施形態の制御回路のブロック図。FIG. 3 is a block diagram of a control circuit according to one embodiment.
【図4】一実施形態における運転モード決定条件のフォ
ーマットを示す図。FIG. 4 is a diagram showing a format of an operation mode determination condition in one embodiment.
【図5】一実施形態におけるヒートポンプ貯湯運転時の
冷媒および循環水の流れを示す図。FIG. 5 is a diagram showing flows of a refrigerant and circulating water during a heat pump hot water storage operation according to one embodiment.
【図6】一実施形態における冷房時の冷媒の流れを示す
図。FIG. 6 is a diagram showing a flow of a refrigerant during cooling in one embodiment.
1…室外機 2…貯湯分岐ユニット 3…室内機 4…電気温水器 11…圧縮機 12…四方弁 14…室外熱交換器 21,22,23,24…開閉弁 26…給湯熱交換器 27…給湯用水配管 28…水循環用ポンプ 31…室内熱交換器 41…貯湯槽 42…電気ヒータ DESCRIPTION OF SYMBOLS 1 ... Outdoor unit 2 ... Hot water storage branching unit 3 ... Indoor unit 4 ... Electric water heater 11 ... Compressor 12 ... Four-way valve 14 ... Outdoor heat exchanger 21, 22, 23, 24 ... On-off valve 26 ... Hot water supply heat exchanger 27 ... Hot water supply water pipe 28 Water pump 31 Indoor heat exchanger 41 Hot water tank 42 Electric heater
───────────────────────────────────────────────────── フロントページの続き (72)発明者 黒川 敏郎 福岡県福岡市中央区渡辺通二丁目1番82号 九州電力株式会社内 (72)発明者 濱田 泰寛 福岡県福岡市中央区渡辺通二丁目1番82号 九州電力株式会社内 (72)発明者 桑原 永治 静岡県富士市蓼原336番地 東芝キヤリア 株式会社内 (72)発明者 大越 靖二 静岡県富士市蓼原336番地 東芝キヤリア 株式会社内 Fターム(参考) 3L060 AA08 CC01 CC05 CC10 DD07 EE09 EE10 EE23 EE34 3L092 AA02 CA02 DA19 EA02 EA20 FA22 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Toshiro Kurokawa 2-182 Watanabe-dori, Chuo-ku, Fukuoka City Inside Kyushu Electric Power Company (72) Inventor Yasuhiro Hamada 2-chome Watanabe, Chuo-ku, Fukuoka City, Fukuoka Prefecture 1-82 Kyushu Electric Power Co., Inc. (72) Inventor Eiji Kuwahara 336 Tatehara, Fuji City, Shizuoka Prefecture Toshiba Carrier Co., Ltd. (72) Inventor Yasuji Ogoshi 336 Tatehara, Fuji City, Shizuoka Prefecture Toshiba Carrier Co., Ltd. Reference) 3L060 AA08 CC01 CC05 CC10 DD07 EE09 EE10 EE23 EE34 3L092 AA02 CA02 DA19 EA02 EA20 FA22
Claims (4)
凍サイクルを搭載してなる空気調和機と、 前記ヒートポンプ式冷凍サイクルに接続し冷凍サイクル
の冷媒と熱交換させ貯湯用の循環水を加熱させるための
給湯用水配管および冷媒配管を備えた給湯熱交換器を有
する貯湯分岐ユニットと、 この貯湯分岐ユニットの給湯熱交換器と給湯用水配管で
連結される貯湯槽を備えた電気温水器とを具備し、 貯湯分岐ユニットは、前記ヒートポンプ式冷凍サイクル
における前記室外機および前記室内機からの接続配管と
接し、前記ヒートポンプ式冷凍サイクルにおける前記室
外機と前記室内機とを連結する第1の冷媒循環サイクル
または前記室外機と前記給湯熱交換器とを連結する第2
の冷媒循環サイクルを構成するとともに、この各冷媒循
環サイクルを切換える冷媒流路切換手段と、前記冷媒循
環サイクルのいずれか一方の流路を選択する選択手段
と、を具備したことを特徴とする空調・給湯システム。1. An air conditioner having an outdoor unit and an indoor unit equipped with a heat pump refrigeration cycle, and connected to the heat pump refrigeration cycle to exchange heat with refrigerant of the refrigeration cycle and heat circulating water for storing hot water. A hot water supply branch unit having a hot water supply heat exchanger provided with a hot water supply water pipe and a refrigerant pipe, and an electric water heater having a hot water storage tank connected to the hot water supply heat exchanger of the hot water supply branch unit by a hot water supply water pipe. A hot water storage branching unit that is in contact with a connection pipe from the outdoor unit and the indoor unit in the heat pump refrigeration cycle and connects the outdoor unit and the indoor unit in the heat pump refrigeration cycle to the first refrigerant circulation cycle or A second connecting the outdoor unit and the hot water supply heat exchanger;
Air conditioning characterized by comprising: a refrigerant flow cycle switching means for switching the respective refrigerant circulation cycles; and a selection means for selecting one of the flow paths of the refrigerant circulation cycle.・ Hot water supply system.
するための電気ヒータを有する、 前記貯湯分岐ユニットの選択手段は、前記空気調和機に
対し設定される運転モードおよび前記電気ヒータの通電
状態に基づいて選択を行う、ことを特徴とする請求項1
に記載の空調・給湯システム。2. The electric water heater has an electric heater for heating water in a hot water storage tank. The means for selecting a hot water storage branch unit includes an operation mode set for the air conditioner and the electric heater. 2. The selection is made based on the current supply state.
The air conditioning and hot water supply system according to 1.
するための電気ヒータを有する、 前記貯湯分岐ユニットは、前記室内機の制御器と前記室
外機の制御器とを接続する電気配線と、前記電気温水器
の制御器に対し接続する運転信号線と、電源からの電源
配線を接続するための入力端子と、この入力端子に配線
接続した出力端子と、この出力端子と前記電気温水器と
を接続する電源配線と、前記入力端子と前記出力端子と
の間の配線に設けた電流センサとを備える、ことを特徴
とする請求項1に記載の空調・給湯システム。3. The electric water heater has an electric heater for heating water in a hot water storage tank. The hot water storage branching unit connects an electric controller connecting a controller of the indoor unit and a controller of the outdoor unit. Wiring, an operation signal line connected to a controller of the electric water heater, an input terminal for connecting a power supply line from a power supply, an output terminal connected to the input terminal, and an output terminal connected to the input terminal. The air conditioning / hot water supply system according to claim 1, further comprising a power supply line for connecting to a water heater, and a current sensor provided on a line between the input terminal and the output terminal.
と電気温水器を連結させる水配管に介在させた水循環用
ポンプと、冷媒配管を流れる冷媒の温度を検知する冷媒
温度センサと、水配管を流れる循環水の温度を検知する
水温度センサと、分岐制御器とをさらに備え、この分岐
制御器は、前記室内機からの運転モード信号および前記
電流センサの検知結果に基づいて前記冷媒流路切換手段
および前記水循環用ポンプを制御することを特徴とする
請求項3に記載の空調・給湯システム。4. The hot water storage branch unit includes a water circulation pump interposed in a water pipe connecting the hot water supply heat exchanger and the electric water heater, a refrigerant temperature sensor for detecting a temperature of the refrigerant flowing through the refrigerant pipe, and a water pipe. A water temperature sensor for detecting a temperature of circulating water flowing through the air passage, and a branch controller. The branch controller is configured to control the refrigerant flow path based on an operation mode signal from the indoor unit and a detection result of the current sensor. The air conditioning / hot water supply system according to claim 3, wherein the switching means and the water circulation pump are controlled.
Priority Applications (1)
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JP2000046241A JP4486205B2 (en) | 2000-02-23 | 2000-02-23 | Air conditioning and hot water supply system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000046241A JP4486205B2 (en) | 2000-02-23 | 2000-02-23 | Air conditioning and hot water supply system |
Publications (2)
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JP2001235252A true JP2001235252A (en) | 2001-08-31 |
JP4486205B2 JP4486205B2 (en) | 2010-06-23 |
Family
ID=18568701
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JP2000046241A Expired - Fee Related JP4486205B2 (en) | 2000-02-23 | 2000-02-23 | Air conditioning and hot water supply system |
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WO2005047781A1 (en) * | 2003-11-17 | 2005-05-26 | Quantum Energy Technologies Pty Limited | Heat pump system for hot water and/or space cooling and/or heating |
US7155922B2 (en) | 2001-12-12 | 2007-01-02 | Quantum Energy Technologies Pty Limited | Energy efficient heat pump systems for water heating and air conditioning |
JP2009024976A (en) * | 2007-07-23 | 2009-02-05 | Sharp Corp | Heat pump system |
CN102072589A (en) * | 2011-02-24 | 2011-05-25 | 汪练强 | Three-in-one equipment of refrigerator, air-conditioner and drinking fountain |
CN102506479A (en) * | 2011-11-10 | 2012-06-20 | 广东美的电器股份有限公司 | Air conditioning system |
CN102538093A (en) * | 2010-10-06 | 2012-07-04 | 大金工业株式会社 | Air-conditioning hot water supply system |
JP2014202378A (en) * | 2013-04-01 | 2014-10-27 | リンナイ株式会社 | Hot water storage water heater |
CN105674553A (en) * | 2016-04-21 | 2016-06-15 | 武汉华易达电力设备有限公司 | Air-source water heater |
CN106091204A (en) * | 2016-08-02 | 2016-11-09 | 武汉崇文新科技有限公司 | One adds refrigeration heat integrated system the most altogether |
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US7155922B2 (en) | 2001-12-12 | 2007-01-02 | Quantum Energy Technologies Pty Limited | Energy efficient heat pump systems for water heating and air conditioning |
WO2005047781A1 (en) * | 2003-11-17 | 2005-05-26 | Quantum Energy Technologies Pty Limited | Heat pump system for hot water and/or space cooling and/or heating |
JP2009024976A (en) * | 2007-07-23 | 2009-02-05 | Sharp Corp | Heat pump system |
CN102538093A (en) * | 2010-10-06 | 2012-07-04 | 大金工业株式会社 | Air-conditioning hot water supply system |
CN102072589A (en) * | 2011-02-24 | 2011-05-25 | 汪练强 | Three-in-one equipment of refrigerator, air-conditioner and drinking fountain |
CN102506479A (en) * | 2011-11-10 | 2012-06-20 | 广东美的电器股份有限公司 | Air conditioning system |
JP2014202378A (en) * | 2013-04-01 | 2014-10-27 | リンナイ株式会社 | Hot water storage water heater |
CN105674553A (en) * | 2016-04-21 | 2016-06-15 | 武汉华易达电力设备有限公司 | Air-source water heater |
CN106091204A (en) * | 2016-08-02 | 2016-11-09 | 武汉崇文新科技有限公司 | One adds refrigeration heat integrated system the most altogether |
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