JPH05312360A - Cold heat of ice accumulating type cooling and heating device and operating method therefor - Google Patents
Cold heat of ice accumulating type cooling and heating device and operating method thereforInfo
- Publication number
- JPH05312360A JPH05312360A JP14326992A JP14326992A JPH05312360A JP H05312360 A JPH05312360 A JP H05312360A JP 14326992 A JP14326992 A JP 14326992A JP 14326992 A JP14326992 A JP 14326992A JP H05312360 A JPH05312360 A JP H05312360A
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- JP
- Japan
- Prior art keywords
- heat
- heat exchanger
- energy
- heating
- cooling
- 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.)
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Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、ヒートポンプを利用し
て温熱と冷熱とを選択的に貯蔵する冷暖房装置に関する
ものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner for selectively storing hot and cold heat using a heat pump.
【０００２】[0002]
【従来技術】近年、住宅やビルなどの冷・暖房装置とし
て、省エネルギー、経済性の面から、夜間電力を利用し
て蓄熱槽に冷水や氷の形態で寒冷エネルギーを貯蔵し、
あるいは温水の形態で温熱エネルギーを貯蔵し、昼間こ
の冷熱や温熱を冷・暖房に利用することが行われてい
る。この場合、蓄熱槽に貯蔵する熱の熱源としてヒート
ポンプを利用するものが知られている。2. Description of the Related Art In recent years, as a cooling and heating device for houses and buildings, from the viewpoint of energy saving and economical efficiency, night energy is used to store cold energy in the form of cold water or ice in a heat storage tank.
Alternatively, thermal energy is stored in the form of hot water, and the cold energy or hot energy is used for cooling and heating during the daytime. In this case, it is known to use a heat pump as a heat source of heat stored in the heat storage tank.
【０００３】従来、ヒートポンプポンプを熱源とした蓄
熱式冷暖房装置として、例えば特開昭６１−２７２５４
８号公報や実開昭６１−２７２５４８号公報に開示され
たものがある。特開昭６１−２７２５４８号公報に示さ
れたものは、圧縮機で加圧したブラインを凝縮液化し、
この液化したブラインを直接蓄熱槽内に噴霧して蓄熱槽
内に冷熱を貯蔵する冷房使用状態と、加圧したブライン
の凝縮液化時に冷却液として使用するブラインを蓄熱槽
に供給して温熱を貯蔵する暖房使用状態とに切り換える
ようにしたものである。Conventionally, as a heat storage type air conditioner using a heat pump pump as a heat source, for example, Japanese Patent Laid-Open No. 61-27254.
No. 8 and Japanese Utility Model Laid-Open No. 61-272548. Japanese Patent Laid-Open No. 61-272548 discloses a method in which brine pressurized by a compressor is condensed and liquefied.
The liquefied brine is directly sprayed into the heat storage tank to store cold heat in the heat storage tank, and the brine used as a cooling liquid when condensing and liquefying pressurized brine is supplied to the heat storage tank to store hot heat. The heating is switched to the heating use state.
【０００４】一方、実開昭６１−２７２５４８号公報に
開示された冷暖房装置は、圧縮機で加圧した冷媒を凝縮
液化し、この液化した冷媒を蓄熱槽内で熱移送液と熱交
換して蓄熱槽内に冷熱を貯蔵する冷房使用状態と、加圧
した冷媒を熱移送液と熱交換する暖房使用状態とに切り
換えるようにしたものである。On the other hand, the cooling and heating device disclosed in Japanese Utility Model Laid-Open No. 61-272548 condenses and liquefies the refrigerant pressurized by the compressor, and heats the liquefied refrigerant with the heat transfer liquid in the heat storage tank. It is configured to switch between a cooling use state in which cold heat is stored in the heat storage tank and a heating use state in which the pressurized refrigerant exchanges heat with the heat transfer liquid.
【０００５】[0005]
【発明が解決しようとする課題】ところが、ヒートポン
プによる加温温度は、通常４５〜５０℃が限度であり、
暖房時に十分な蓄熱量を確保するためには、大容量の蓄
熱槽を必要とし、装置全体が大型化するという問題があ
る。本発明はこのような点に着目してなされたもので、
小さな蓄熱槽で大きな温熱エネルギーを貯蔵できる蓄熱
装置を提供することを目的とする。However, the heating temperature by the heat pump is usually limited to 45 to 50 ° C.,
In order to secure a sufficient amount of heat storage during heating, a large-capacity heat storage tank is required, and there is a problem that the entire device becomes large. The present invention has been made paying attention to such points,
An object of the present invention is to provide a heat storage device capable of storing a large amount of thermal energy in a small heat storage tank.
【０００６】[0006]
【課題を解決するための手段】上述の目的を達成するた
めに、本発明は、夜間電力を利用して蓄熱槽内に熱エネ
ルギーを蓄熱する蓄熱装置であって、蓄熱槽の内部に熱
交換部とエネルギー貯蔵部とを上下に連続して形成し、
熱交換部に熱交換器を配置するとともに、この熱交換器
にヒートポンプのガス圧縮機を接続して閉ループのガス
循環回路を形成し、熱交換部での熱交換器の上側に散液
管を配置し、この散液管にエネルギー貯蔵部から導出し
た導液管を接続して液媒体循環路を形成し、ヒートポン
プのガス循環回路に四方弁を配置し、この四方弁の切換
えで熱交換器にガス圧縮機からホットガスを直接供給す
る状態と、ホットガスを凝縮器及び膨張弁ユニットを介
して供給する状態とに切り換え可能に構成し、エネルギ
ー貯蔵部分に電熱ヒータを配置したことを特徴としてい
る。In order to achieve the above-mentioned object, the present invention is a heat storage device for storing heat energy in a heat storage tank by using night-time electric power, wherein heat is exchanged inside the heat storage tank. Section and the energy storage section are formed continuously in the vertical direction,
A heat exchanger is arranged in the heat exchange section, a gas compressor of a heat pump is connected to this heat exchanger to form a closed loop gas circulation circuit, and a spray pipe is installed above the heat exchanger in the heat exchange section. A liquid medium circulation path is formed by connecting the liquid guiding pipe derived from the energy storage unit to this spray pipe, and a four-way valve is arranged in the gas circulation circuit of the heat pump.The heat exchanger is switched by switching this four-way valve. It is characterized in that it can be switched between a state in which hot gas is directly supplied from a gas compressor and a state in which hot gas is supplied through a condenser and an expansion valve unit, and an electric heater is arranged in the energy storage portion. There is.
【０００７】[0007]
【作用】本発明では、蓄熱槽の内部に熱交換部とエネル
ギー貯蔵部とを上下に連続して形成し、熱交換部に熱交
換器を配置するとともに、この熱交換器にヒートポンプ
のガス圧縮機を接続して閉ループのガス循環回路を形成
し、熱交換部での熱交換器の上側に散液管を配置し、こ
の散液管にエネルギー貯蔵部から導出した導液管を接続
して液媒体循環路を形成し、ヒートポンプのガス循環回
路に四方弁を配置し、この四方弁の切換えで熱交換器に
ガス圧縮機からホットガスを直接供給する状態と、ホッ
トガスを凝縮器及び膨張弁ユニットを介して供給する状
態とに切り換え可能に構成し、エネルギー貯蔵部分に電
熱ヒータを配置してあるので、冷房時にはホットガスを
凝縮器及び膨張弁ユニットを介して熱交換器に供給する
状態に四方弁を切り換えることにより、熱交換器での熱
交換により熱移送液を冷却し、氷と液体の混合状態で冷
熱を貯蔵することになる。また、暖房時には、熱交換器
にガス圧縮機からホットガスを直接供給する状態に四方
弁を切り換えることにより、凝縮器が大気から集熱した
のち圧縮機で加圧されたホットガスの保有熱で熱移送液
を加熱し、温水の状態で温熱を貯蔵する。そして、この
暖房時には、運転開始後一定時間はヒートポンプで熱移
送液を加熱し、その後ヒートポンプに変えて電熱ヒータ
でエネルギー貯蔵部に貯溜されている熱移送液を加熱す
るようにしていることから、夜間の同じ電力で熱移送液
の液温をヒートポンプだけで昇温する場合よりも高くす
ることができる。According to the present invention, the heat exchange section and the energy storage section are formed continuously in the upper and lower directions inside the heat storage tank, the heat exchanger is arranged in the heat exchange section, and the gas compression of the heat pump is performed in this heat exchanger. The machine is connected to form a closed-loop gas circulation circuit, and a sprinkler tube is placed above the heat exchanger in the heat exchange section, and a liquid guide tube derived from the energy storage section is connected to this sprinkle tube. A liquid medium circulation path is formed and a four-way valve is placed in the gas circulation circuit of the heat pump.By switching the four-way valve, the hot gas is directly supplied from the gas compressor to the heat exchanger, and the hot gas is condensed and expanded. It is configured so that it can be switched to a state in which it is supplied via the valve unit and an electric heater is arranged in the energy storage part, so that during cooling, hot gas is supplied to the heat exchanger via the condenser and expansion valve unit. Turn off the four-way valve By changing the heat transfer fluid is cooled by heat exchange in the heat exchanger, so that the storage of cold in a mixed state of ice and liquid. In addition, at the time of heating, by switching the four-way valve to the state where hot gas is directly supplied from the gas compressor to the heat exchanger, the heat stored in the hot gas pressurized by the compressor after the condenser has collected heat from the atmosphere. The heat transfer liquid is heated and the heat is stored in the state of hot water. Then, at the time of heating, the heat transfer liquid is heated by the heat pump for a certain time after the start of operation, and then the heat transfer liquid stored in the energy storage unit is heated by the electric heater instead of the heat pump. The liquid temperature of the heat transfer liquid can be raised with the same electric power at night as compared with the case where the temperature is raised only by the heat pump.
【０００８】[0008]
【実施例】図面は氷蓄熱式冷暖房装置の系統図である。
図中符号(１)は蓄熱槽で、この蓄熱槽(１)の内部に熱交
換部(２)とエネルギー貯蔵部(３)を連続する状態で上下
に配置してある。エネルギー貯蔵部(２)にはヒートポン
プの蒸発器となる熱交換器(４)が配置してあり、この熱
交換器(４)の上方に２系統の散液管(５)(６)が配設して
ある。そして、一方の散液管(５)にエネルギー貯蔵部
(３)の底部から導出した熱移送液通路が送液ポンプ(７)
を介して接続することにより蓄熱用熱移送液循環路(８)
を形成してある。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The drawings are system diagrams of an ice heat storage type air conditioner.
In the figure, reference numeral (1) is a heat storage tank, and a heat exchange section (2) and an energy storage section (3) are vertically arranged inside the heat storage tank (1) in a continuous state. A heat exchanger (4), which is an evaporator of a heat pump, is arranged in the energy storage unit (2), and two distribution pipes (5) and (6) are arranged above the heat exchanger (4). It is set up. And one of the sprinkler tubes (5) has an energy storage unit.
The heat transfer liquid passage leading from the bottom of (3) is the liquid transfer pump (7)
Heat transfer liquid circulation path for heat storage by connecting through (8)
Has been formed.
【０００９】また、エネルギー貯蔵部(３)の底壁から導
出した熱移送液取出路(９)を第２送液ポンプ(10)及び冷
暖房負荷(11)を介して他の散液管(６)に接続して閉サイ
クルに形成している。そして、この熱移送液取出路(９)
の冷暖房負荷(11)への送給路に混合弁(12)を介装し、こ
の混合弁(12)の混合流体ポートに冷房負荷(11)から散液
管(６)への返送路(13)より分岐導出したバイパス路(14)
を接続して、冷暖房負荷(11)に流入する熱移送液の液温
を調整するように構成してある。Further, the heat transfer liquid take-out path (9) led out from the bottom wall of the energy storage unit (3) is passed through the second liquid feed pump (10) and the cooling and heating load (11) to the other spray pipes (6). ) To form a closed cycle. And this heat transfer liquid take-out path (9)
The mixing valve (12) is provided in the supply path to the cooling / heating load (11) of the device, and the return path (from the cooling load (11) to the sprinkler pipe (6) is connected to the mixing fluid port of the mixing valve (12) ( Bypass route derived from 13) (14)
Are connected to adjust the liquid temperature of the heat transfer liquid flowing into the cooling / heating load (11).
【００１０】熱交換部(２)に配置した熱交換器(４)はプ
レート式の熱交換器で形成してあり、この熱交換器(４)
とヒートポンプ(15)の圧縮機(16)とを閉サイクルで接続
して、ヒートポンプ回路(17)を形成している。このヒー
トポンプ回路(17)には、２個の膨張弁ユニット(18)と凝
縮器(19)及び四方弁(20)が直列に配置してあり、各膨張
弁ユニット(18)はそれぞれ膨張弁(21)と逆止弁(22)とを
並列に配置して構成してある。The heat exchanger (4) arranged in the heat exchange section (2) is formed by a plate type heat exchanger, and this heat exchanger (4)
And a compressor (16) of the heat pump (15) are connected in a closed cycle to form a heat pump circuit (17). In this heat pump circuit (17), two expansion valve units (18), a condenser (19) and a four-way valve (20) are arranged in series, and each expansion valve unit (18) has an expansion valve (18). 21) and the check valve (22) are arranged in parallel.
【００１１】ヒートポンプ回路(17)に配置した四方弁(2
0)は、熱交換器(４)からの戻り路(23)が圧縮機(16)の吸
入ポート(24)に接続し、圧縮機(16)の吐出ポート(25)が
凝縮器(19)に接続する製氷工程と、熱交換器(４)からの
戻り路(23)が圧縮機(16)の吐出ポート(25)に接続し、圧
縮機(16)の吸入ポート(24)が凝縮器(19)に接続する加熱
工程とに制御装置(26)からの指令で切り換わるように構
成してある。The four-way valve (2
In (0), the return path (23) from the heat exchanger (4) is connected to the suction port (24) of the compressor (16), and the discharge port (25) of the compressor (16) is the condenser (19). The ice making process connected to the heat exchanger (4), the return path (23) from the heat exchanger (4) is connected to the discharge port (25) of the compressor (16), and the suction port (24) of the compressor (16) is connected to the condenser. The heating process connected to (19) is configured to be switched by a command from the control device (26).
【００１２】また、エネルギー貯蔵部(３)にはパイプ式
の電熱ヒータ(27)が配置してあり、このヒータ回路(28)
に電源(29)と切換スイッチ(30)とが介装してあり、この
切換スイッチ(30)は制御装置(26)からの指令で断続切り
換えされるように構成してある。A pipe type electric heater (27) is arranged in the energy storage unit (3), and this heater circuit (28) is provided.
A power source (29) and a change-over switch (30) are interposed in the power source (29), and the change-over switch (30) is configured to be intermittently changed over by a command from a control device (26).
【００１３】制御装置(26)には熱交換部(２)に配置され
ている熱交換器(４)に対応させて配置した着氷厚み検出
センサーからのリード線が接続してある。そして、この
着氷厚み検出センサーは熱交換器プレート同士間にプレ
ート表面から一定間隔へだてて配置してあり、プレート
表面に付着した氷が一定厚みになったことを検出して制
御装置(26)に信号を伝達するようになっている。また、
この制御装置(26)には時計機能を有するタイマーと３つ
の経過時間測定タイマーが組み込んであり、この３つの
タイマーの内の１つに製氷時間を設定し、他のタイマー
に脱氷用加熱時間を設定し、残る一つに暖房時での切換
時間が設定してある。A lead wire from an ice accretion thickness detecting sensor arranged corresponding to the heat exchanger (4) arranged in the heat exchange section (2) is connected to the control device (26). The ice accretion thickness detection sensor is arranged between the heat exchanger plates with a certain distance from the plate surface, and detects that the ice adhering to the plate surface has a constant thickness, and a control device (26) It is designed to transmit signals to. Also,
This control device (26) incorporates a timer having a clock function and three elapsed time measuring timers, one of these three timers is set to the ice making time, and the other timer is set to the deicing heating time. Is set, and the remaining one is set to the switching time during heating.
【００１４】以上の構成からなる冷暖房装置の作動を説
明する。 （１）冷房時 この冷暖房装置は、夜間電力供給時間を利用して製氷工
程と解氷工程を繰り返して冷熱を蓄熱し、昼間に蓄熱し
た冷熱を利用して冷房するようにしてある。 (a) 製氷工程 製氷工程時には、ヒートポンプ回路(17)に配置した四方
弁(20)は、熱交換器(４)からの戻り路(23)が圧縮機(16)
の吸入ポート(24)に接続し、圧縮機(16)の吐出ポート(2
5)が凝縮器(19)に接続する状態になっている。この状態
では、圧縮機(16)で圧縮されたホットガスは、四方弁(2
0)を介して凝縮器(19)に送り込まれ、ここで放熱して液
化し、膨張弁ユニット(18)で膨張減圧されてコールドガ
スの状態で熱交換器(４)に流入する。The operation of the cooling and heating apparatus having the above structure will be described. (1) At the time of cooling This cooling and heating device is configured to store cold heat by repeating the ice making process and the defrosting process by using the nighttime power supply time, and cool the cold heat stored in the daytime. (a) Ice making process During the ice making process, the return path (23) from the heat exchanger (4) of the four-way valve (20) arranged in the heat pump circuit (17) has a compressor (16).
Connected to the suction port (24) of the compressor (16) and the discharge port (2
5) is ready to connect to the condenser (19). In this state, the hot gas compressed by the compressor (16) is
It is sent to the condenser (19) through (0), where it radiates heat to be liquefied, expanded and decompressed by the expansion valve unit (18), and flows into the heat exchanger (4) in the state of cold gas.
【００１５】一方、蓄熱槽(１)のエネルギー貯蔵部(３)
に貯蔵されている熱移送液は送液ポンプ(８)で散液管
(５)に送り込まれ、散液管(５)から熱交換器(４)に向け
て噴出される。この噴出された熱移送液は熱交換器(４)
の表面を流下して熱交換器(４)内を流れるコールドガス
と熱交換する。運転開始後しばらくの間は、熱移送液は
冷却されて液温が低下するだけであるが、液温が凝固点
温度になると、熱交換器(４)のプレート表面に氷着を開
始する。そして、氷着した氷の厚みが所定の厚さになっ
たことを着氷厚み検出センサーが検出すると、制御装置
(26)が作動して四方弁(20)を切り換える。なお、厚みセ
ンサーが所定厚みを検出する前に製氷時間設定タイマー
が設定時間に達すると、制御装置(26)が作動して四方弁
(20)を切り換えるように構成してある。On the other hand, the energy storage section (3) of the heat storage tank (1)
The heat transfer liquid stored in the
It is sent to (5) and is jetted from the sprinkling pipe (5) toward the heat exchanger (4). The ejected heat transfer liquid is a heat exchanger (4).
The heat is exchanged with the cold gas flowing in the heat exchanger (4) by flowing down the surface of the. For a while after the start of operation, the heat transfer liquid is cooled and the liquid temperature only decreases, but when the liquid temperature reaches the freezing point temperature, icing starts on the plate surface of the heat exchanger (4). Then, when the icing thickness detection sensor detects that the thickness of the iced ice reaches a predetermined thickness, the control device
(26) operates to switch the four-way valve (20). If the ice making time setting timer reaches the set time before the thickness sensor detects the predetermined thickness, the control device (26) operates and the four-way valve
It is configured to switch (20).
【００１６】(b) 解氷工程 解氷工程では、熱交換器(４)からの戻り路(23)が圧縮機
(16)の吐出ポート(25)に接続し、圧縮機(16)の吸入ポー
ト(24)が凝縮器(19)に接続することにより、熱交換器
(４)に圧縮機(16)で圧縮されたホットガス冷媒が直接流
入する。そして、四方弁(20)の切換わりにより制御装置
(26)に配置されている解氷時間設定タイマーが作動を開
始する。この圧縮されたホットガスは圧縮熱を保有して
いることから、このホットガスが保有している熱により
熱交換器(４)のプレート表面に付着している部分を融解
して脱氷する。脱氷した氷は貯氷部(３)に落下するが、
このとき、生成された氷は過冷却氷にならず氷点付近の
温度であることから、落下貯氷時は板状が崩れエネルギ
ー貯蔵部(３)内ではスラッシュ状になる。解氷時間設定
タイマーが設定時間に達すると四方弁(20)を切り換えて
製氷工程に切り換わる。(B) Thawing step In the thawing step, the return path (23) from the heat exchanger (4) is compressed by the compressor.
By connecting the discharge port (25) of (16) and the suction port (24) of the compressor (16) to the condenser (19), the heat exchanger
The hot gas refrigerant compressed by the compressor (16) directly flows into (4). The control device is controlled by switching the four-way valve (20).
The deicing time setting timer located at (26) starts operating. Since the compressed hot gas retains the heat of compression, the heat retained by the hot gas melts and deices the portion attached to the plate surface of the heat exchanger (4). The de-iced ice falls into the ice storage section (3),
At this time, since the generated ice does not become supercooled ice and has a temperature near the freezing point, the plate shape collapses during falling ice storage and becomes a slash shape in the energy storage unit (3). When the defrosting time setting timer reaches the set time, the four-way valve (20) is switched to switch to the ice making process.
【００１７】(C) 冷房工程 冷房工程では、ヒートポンプを作動させた状態で熱移送
液取出路(９)を作動させてエネルギー貯蔵部(３)に貯蔵
されている低温の熱移送液を冷暖房負荷(11)に送り込
み、ここで低温熱移送液は室内空気と熱交換して温度上
昇し、冷暖房負荷(11)で冷熱エネルギーを放出した熱移
送液は返送路(13)により蓄熱槽(１)内の熱交換部(２)に
配置した散液管(６)に供給され、熱交換器(４)に向けて
噴出される。この熱交換部(２)に噴出した二次冷媒液は
熱交換器(４)を流下する間に熱交換器(４)内を流れるコ
ールドガスと熱交換して、冷却された状態でエネルギー
貯蔵部(３)に戻る。(C) Cooling Step In the cooling step, the heat transfer liquid take-out path (9) is operated while the heat pump is operating to operate the low temperature heat transfer liquid stored in the energy storage unit (3) to cool and heat the load. It is sent to (11), where the low temperature heat transfer liquid exchanges heat with the room air to raise the temperature, and the heat transfer liquid that has released cooling energy in the cooling and heating load (11) is returned to the heat storage tank (1) by the return path (13). It is supplied to the liquid sprinkling pipe (6) arranged in the heat exchange section (2) inside and is ejected toward the heat exchanger (4). The secondary refrigerant liquid ejected to the heat exchange part (2) exchanges heat with the cold gas flowing in the heat exchanger (4) while flowing down the heat exchanger (4), and stores energy in a cooled state. Return to section (3).
【００１８】なお、この冷房工程では、二次冷媒液の送
給路に配置した混合弁(12)でエネルギー貯蔵部(３)から
送り出されて来た低温の熱移送液と冷暖房負荷(11)から
の返送される放冷した熱移送液とを混合して冷暖房負荷
(11)に流入する熱移送液の液温を調整するようにしてあ
る。In this cooling step, the low-temperature heat transfer liquid and the heating / cooling load (11) sent from the energy storage section (3) are mixed by the mixing valve (12) arranged in the secondary refrigerant liquid supply path. Heating and cooling load by mixing with the cooled heat transfer liquid returned from
The temperature of the heat transfer liquid flowing into (11) is adjusted.
【００１９】（２）暖房時 この冷暖房装置は、夜間電力供給時間を利用して加熱工
程で蓄熱槽に温水として蓄熱し、昼間に蓄熱した温熱を
利用し暖房するようにしてある。 (d) ヒートポンプ蓄熱工程 暖房時の蓄熱工程では、熱交換器(４)からの戻り路(23)
が圧縮機(16)の吐出ポート(25)に接続し、圧縮機(16)の
吸入ポート(24)が凝縮器(19)に接続することにより、熱
交換器(４)に圧縮機(16)で圧縮されたホットガスが流入
する。この圧縮されたガス冷媒は凝縮器での大気からの
集熱するとともに圧縮機での圧縮熱を保有していること
から、このホットガスが保有している熱により熱交換器
(４)のプレート表面を流下する熱移送液と熱交換して熱
移送液を加熱する。そして、運転開始後一定時間(例え
ば２時間)が経過して熱移送液の液温が４５〜５０℃に
なると、ヒートポンプ(15)の運転を停止するとともに、
ヒータ回路(28)の切換スイッチ(30)を導通状態に切り換
える。なお、タイマーとともにエネルギー貯蔵部に温度
センサーを設け、この温度センサーが所定温度(４５℃)
を検出した際にヒートポンプの運転を停止するととも
に、ヒータ回路(28)を導通させるようにしてもよい。(2) At the time of heating This cooling and heating apparatus is configured to store heat as hot water in the heat storage tank in the heating process by utilizing the nighttime power supply time, and use the warm heat stored in the daytime for heating. (d) Heat pump heat storage process In the heat storage process during heating, the return path (23) from the heat exchanger (4)
Is connected to the discharge port (25) of the compressor (16) and the suction port (24) of the compressor (16) is connected to the condenser (19), so that the compressor (16) is connected to the heat exchanger (4). The hot gas compressed in) flows in. This compressed gas refrigerant collects heat from the atmosphere in the condenser and also retains the heat of compression in the compressor.
Heat is exchanged with the heat transfer liquid flowing down the plate surface of (4) to heat the heat transfer liquid. Then, when a certain time (for example, 2 hours) has elapsed after the start of operation and the liquid temperature of the heat transfer liquid reaches 45 to 50 ° C., the operation of the heat pump (15) is stopped, and
The switch (30) of the heater circuit (28) is switched to the conductive state. In addition, a temperature sensor is installed in the energy storage unit along with the timer, and this temperature sensor has a predetermined temperature (45 ° C).
When detecting, the operation of the heat pump may be stopped and the heater circuit (28) may be made conductive.
【００２０】(e) ヒータ加熱工程 この電熱ヒータ(27)の加熱を夜間電力期間の残存時間継
続する。このヒータ加熱により、蓄熱槽(１)内の熱移送
液を４５℃程度から８０℃程度まで昇温させて熱水の状
態で熱エネルギーを蓄積する。(E) Heater heating step The heating of the electric heater (27) is continued for the remaining time of the night power period. By this heater heating, the heat transfer liquid in the heat storage tank (1) is heated from about 45 ° C. to about 80 ° C., and thermal energy is stored in the state of hot water.
【００２１】(f) 暖房工程 暖房工程では、ヒートポンプを作動させた状態で熱移送
液取出路(９)を作動させてエネルギー貯蔵部(３)に貯蔵
されている高温の熱移送液を冷暖房負荷(11)に送り込
み、ここで高温熱移送液は室内空気と熱交換して温度低
下し、冷暖房負荷(11)で温熱エネルギーを放出した熱移
送液は返送路(13)により蓄熱槽(１)内の熱交換部(２)に
配置した散液管(６)に供給され熱交換器(４)に向けて噴
出される。この熱交換部(２)に噴出した熱移送液は熱交
換器(４)を流下する間に熱交換器(４)内を流れるホット
ガスと熱交換して、加温された状態でエネルギー貯蔵部
(３)に戻る。(F) Heating Step In the heating step, the heat transfer liquid take-out path (9) is operated while the heat pump is operating to operate the high temperature heat transfer liquid stored in the energy storage section (3) for the heating and cooling load. It is sent to (11), where the high temperature heat transfer liquid exchanges heat with the room air to lower the temperature, and the heat transfer liquid that has released thermal energy in the cooling and heating load (11) is returned to the heat storage tank (1) by the return path (13). It is supplied to the liquid dispersion pipe (6) arranged in the heat exchange section (2) inside and is jetted toward the heat exchanger (4). The heat transfer liquid ejected to the heat exchange part (2) exchanges heat with the hot gas flowing in the heat exchanger (4) while flowing down the heat exchanger (4), and stores energy in a heated state. Department
Return to (3).
【００２２】なお、この暖房工程では、熱移送液の送給
路に配置した混合弁(12)でエネルギー貯蔵部(３)から送
り出されて来た高温の熱移送液と冷暖房負荷(11)からの
返送される放熱した熱移送液とを混合して冷暖房負荷(1
1)に流入する熱移送液の液温を調整するようにしてあ
る。In the heating process, the mixing valve (12) arranged in the heat transfer liquid supply path is used to remove the high temperature heat transfer liquid sent from the energy storage section (3) and the cooling / heating load (11). The heat transfer liquid that radiated the heat is returned and mixed with the cooling and heating load (1
The temperature of the heat transfer liquid flowing into 1) is adjusted.
【００２３】[0023]
【発明の効果】本発明では、蓄熱槽の内部に熱交換部と
エネルギー貯蔵部とを上下に連続して形成し、熱交換部
に熱交換器を配置するとともに、この熱交換器にヒート
ポンプのガス圧縮機を接続して閉ループのガス循環回路
を形成し、熱交換部での熱交換器の上側に散液管を配置
し、この散液管にエネルギー貯蔵部から導出した導液管
を接続して液媒体循環路を形成し、ヒートポンプのガス
循環回路に四方弁を配置し、この四方弁の切換えで熱交
換器にガス圧縮機からホットガスを直接供給する状態
と、ホットガスを凝縮器及び膨張弁ユニットを介して供
給する状態とに切り換え可能に構成してあるので、冷房
時にはホットガスを凝縮器及び膨張弁ユニットを介して
熱交換器に供給する状態に四方弁を切り換えることによ
り、熱交換器内を流れるコールドガスとの熱交換で熱移
送液を冷却し、氷と液体の混合状態で冷熱を貯蔵するこ
とができる。According to the present invention, a heat exchange section and an energy storage section are continuously formed inside a heat storage tank, and a heat exchanger is arranged in the heat exchange section. A gas compressor is connected to form a closed-loop gas circulation circuit, a spray pipe is placed above the heat exchanger in the heat exchange unit, and a liquid transfer pipe derived from the energy storage unit is connected to this spray pipe. To form a liquid medium circulation path, arrange a four-way valve in the gas circulation circuit of the heat pump, and switch the four-way valve to directly supply the hot gas from the gas compressor to the heat exchanger and the hot gas condenser. And, since it is configured to be switchable to a state of supplying through the expansion valve unit, by switching the four-way valve to a state of supplying hot gas to the heat exchanger through the condenser and the expansion valve unit during cooling, Flow in the heat exchanger That the heat transfer fluid cooled by the heat exchange with the cold gas, it can be stored cold heat in a mixed state of ice and liquid.
【００２４】また、エネルギー貯蔵部に電熱ヒータを配
置してあるので、暖房時には、熱交換器にガス圧縮機か
らホットガスを直接供給する状態に四方弁を切り換える
ことにより、ホットガスの保有熱で熱移送液を加熱する
とともに、電熱ヒータで加熱をすることができ、大きな
温熱エネルギーを熱水の状態で貯蔵することができる。
そして、この暖房時には、運転開始後一定時間はヒート
ポンプで熱移送液を加熱し、その後ヒートポンプに変え
て電熱ヒータでエネルギー貯蔵部に貯溜されている熱移
送液を加熱するようにしていることから、夜間の同じ電
力で熱移送液の液温をヒートポンプだけで昇温する場合
よりも高くすることができる。これにより、早朝などの
暖房負荷が過大となる時期に大きなエネルギー貯蔵部の
大きな蓄積熱エネルギーを使用することが出来るから、
容積の小さい蓄熱槽で十分対応することができる。Further, since the electric heater is arranged in the energy storage unit, at the time of heating, by switching the four-way valve to a state in which the hot gas is directly supplied from the gas compressor to the heat exchanger, the heat retained by the hot gas can be supplied. The heat transfer liquid can be heated and heated by an electric heater, and a large amount of thermal energy can be stored in the state of hot water.
Then, at the time of heating, the heat transfer liquid is heated by the heat pump for a certain time after the start of operation, and then the heat transfer liquid stored in the energy storage unit is heated by the electric heater instead of the heat pump. The liquid temperature of the heat transfer liquid can be raised with the same electric power at night as compared with the case where the temperature is raised only by the heat pump. This makes it possible to use a large amount of stored heat energy in a large energy storage unit during times when the heating load becomes excessive, such as in the early morning.
A small-capacity heat storage tank can be sufficient.
【図１】氷蓄熱式冷暖房装置の系統図である。FIG. 1 is a system diagram of an ice storage type air conditioner.
１…蓄熱槽、 ２…熱交換
部、３…エネルギー貯蔵部、 ４…熱交
換器、５…散液管、 ８…蓄
熱用熱移送液循環路、15…ヒートポンプ、
16…ガス圧縮機、17…ヒートポンプ回路、
20…四方弁、19…凝縮器、
20…膨張弁ユニット、27…電熱ヒータ。DESCRIPTION OF SYMBOLS 1 ... Heat storage tank, 2 ... Heat exchange part, 3 ... Energy storage part, 4 ... Heat exchanger, 5 ... Dispersion pipe, 8 ... Heat transfer liquid circulation path for heat storage, 15 ... Heat pump,
16 ... Gas compressor, 17 ... Heat pump circuit,
20 ... four-way valve, 19 ... condenser,
20 ... Expansion valve unit, 27 ... Electric heater.
Claims (3)
送液に熱エネルギーを貯蔵し、この貯蔵された熱エネル
ギーを昼間に冷暖房に使用する冷暖房装置において、 蓄熱槽(１)の内部に熱交換部(２)とエネルギー貯蔵部
(３)とを上下に連続して形成し、熱交換部(２)に熱交換
器(４)を配置するとともに、この熱交換器(４)にヒート
ポンプ(15)のガス圧縮機(16)を接続して閉ループのヒー
トポンプ回路(17)を形成し、熱交換部(２)での熱交換器
(４)の上側に散液管(５)を配置し、この散液管(５)にエ
ネルギー貯蔵部(３)から導出した導液管を接続して蓄熱
用熱移送液循環路(８)を形成し、ヒートポンプ(15)のヒ
ートポンプ回路(17)に四方弁(20)を配置し、この四方弁
(20)の切換えで熱交換器(４)にガス圧縮機(16)からホッ
トガスを直接供給する状態と、ホットガスを凝縮器(19)
及び膨張弁ユニット(18)を介して供給する状態とに切り
換え可能に構成し、エネルギー貯蔵部(３)に電熱ヒータ
(27)を配置したことを特徴とする氷蓄冷熱式冷暖房装
置。1. A cooling / heating apparatus for storing heat energy in a heat transfer liquid in a heat storage tank (1) by using nighttime electric power and using the stored heat energy for heating and cooling in the daytime, the heat storage tank (1) Heat exchange part (2) and energy storage part inside
(3) and (3) are formed continuously in the vertical direction, the heat exchanger (4) is arranged in the heat exchange part (2), and the gas compressor (16) of the heat pump (15) is arranged in the heat exchanger (4). To form a closed-loop heat pump circuit (17) and heat exchanger in the heat exchange section (2)
Dispersion pipe (5) is arranged on the upper side of (4), and heat transfer liquid circulation path (8) for heat storage is obtained by connecting the liquid guide pipe derived from energy storage unit (3) to this dispersion pipe (5). Form a four-way valve (20) in the heat pump circuit (17) of the heat pump (15).
By switching (20), the hot gas is directly supplied from the gas compressor (16) to the heat exchanger (4) and the hot gas is condensed in the condenser (19).
And a state in which it can be switched to a state in which it is supplied via the expansion valve unit (18), and an electric heater is provided in the energy storage unit (3).
An ice cold storage type heating and cooling device characterized in that (27) is arranged.
成し、伝熱プレート同士間に付着氷の厚みセンサーを配
置し、この厚みセンサーが氷の付着量が一定厚さ異常に
なったことを検出することにより四方弁(20)を切換えて
熱交換器(４)から氷を離脱させるようにした請求項１に
記載の氷蓄冷熱式冷暖房装置。2. The heat exchanger (4) is composed of a plate heat exchanger, and a thickness sensor for adhering ice is arranged between the heat transfer plates, and the thickness sensor detects that the amount of adhering ice is constant and the thickness is abnormal. The ice storage heat type cooling and heating apparatus according to claim 1, wherein the four-way valve (20) is switched to detect the fact that the ice is released so that the ice is separated from the heat exchanger (4).
体に熱エネルギーを貯蔵し、この貯蔵された熱エネルギ
ーを昼間に冷暖房に使用する冷暖房方法において、 蓄熱槽(１)内に熱交換部(２)とエネルギー貯蔵部(３)と
を上下に連続して形成し、この熱交換部(２)に配置した
熱交換器(４)とヒートポンプ(15)のガス圧縮機(16)とを
接続したヒートポンプ回路(17)に四方弁(20)を配置し、
四方弁(20)の切換えで熱交換器(４)にコールドガスとホ
ットガスとを切換供給可能に構成するとともに、エネル
ギー貯蔵部(３)に電熱ヒータ(27)を配置し、熱交換器
(４)にホットガスを供給する暖房使用時に、ヒートポン
プ(15)を一定時間運転してエネルギー貯蔵部(３)に貯蔵
した液体に温熱を蓄熱したのち、ヒートポンプ(15)の運
転を停止するとともに電熱ヒータ(27)に切換通電するこ
とを特徴とする氷蓄熱式冷暖房装置の運転方法。3. A heating and cooling method for storing heat energy in a liquid medium in the heat storage tank (1) by using nighttime electric power and using the stored heat energy for cooling and heating in the daytime, in the heat storage tank (1) A heat exchanger (2) and an energy storage unit (3) are continuously formed on the top and bottom, and a heat exchanger (4) and a gas compressor (15) of a heat pump (15) arranged in the heat exchange unit (2). Place the four-way valve (20) in the heat pump circuit (17) connected to (16),
The heat exchanger (4) is configured so that cold gas and hot gas can be switched and supplied by switching the four-way valve (20), and an electric heater (27) is arranged in the energy storage unit (3) to provide a heat exchanger.
When using heating for supplying hot gas to (4), the heat pump (15) is operated for a certain period of time to store heat in the liquid stored in the energy storage unit (3), and then the operation of the heat pump (15) is stopped. A method for operating an ice heat storage type cooling and heating apparatus, which is characterized by switching and energizing an electric heater (27).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14326992A JPH05312360A (en) | 1992-05-09 | 1992-05-09 | Cold heat of ice accumulating type cooling and heating device and operating method therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14326992A JPH05312360A (en) | 1992-05-09 | 1992-05-09 | Cold heat of ice accumulating type cooling and heating device and operating method therefor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05312360A true JPH05312360A (en) | 1993-11-22 |
Family
ID=15334826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14326992A Pending JPH05312360A (en) | 1992-05-09 | 1992-05-09 | Cold heat of ice accumulating type cooling and heating device and operating method therefor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05312360A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100345579B1 (en) * | 2000-08-14 | 2002-07-27 | 주식회사 센추리 | The combined Compact Refrigerative / Regenerative Heat-Pump System |
| JP2008292082A (en) * | 2007-05-25 | 2008-12-04 | Sekisui Chem Co Ltd | Heat storage device and air conditioning system using the same |
| KR101463122B1 (en) * | 2013-10-29 | 2014-11-21 | 트윈에너지(주) | Cooling and heating device using ice thermal storage with sealed type ice storage tank |
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|---|---|---|---|---|
| JPS5088844A (en) * | 1973-12-12 | 1975-07-16 | ||
| JPS5113902A (en) * | 1974-07-24 | 1976-02-03 | Yokogawa Electric Works Ltd | Makisentaino seizohoho |
| JPS61272548A (en) * | 1985-05-28 | 1986-12-02 | Mitsui Eng & Shipbuild Co Ltd | Cooling and heating apparatus |
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1992
- 1992-05-09 JP JP14326992A patent/JPH05312360A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5088844A (en) * | 1973-12-12 | 1975-07-16 | ||
| JPS5113902A (en) * | 1974-07-24 | 1976-02-03 | Yokogawa Electric Works Ltd | Makisentaino seizohoho |
| JPS61272548A (en) * | 1985-05-28 | 1986-12-02 | Mitsui Eng & Shipbuild Co Ltd | Cooling and heating apparatus |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100345579B1 (en) * | 2000-08-14 | 2002-07-27 | 주식회사 센추리 | The combined Compact Refrigerative / Regenerative Heat-Pump System |
| JP2008292082A (en) * | 2007-05-25 | 2008-12-04 | Sekisui Chem Co Ltd | Heat storage device and air conditioning system using the same |
| KR101463122B1 (en) * | 2013-10-29 | 2014-11-21 | 트윈에너지(주) | Cooling and heating device using ice thermal storage with sealed type ice storage tank |
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