JPH0849901A - Heat storage air-conditioner - Google Patents
Heat storage air-conditionerInfo
- Publication number
- JPH0849901A JPH0849901A JP6182278A JP18227894A JPH0849901A JP H0849901 A JPH0849901 A JP H0849901A JP 6182278 A JP6182278 A JP 6182278A JP 18227894 A JP18227894 A JP 18227894A JP H0849901 A JPH0849901 A JP H0849901A
- Authority
- JP
- Japan
- Prior art keywords
- heat storage
- temperature
- heat
- heat exchanger
- storage material
- 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.)
- Pending
Links
Landscapes
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
- Air Conditioning Control Device (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、空気を熱源とする空気
調和機において、夜間電力を利用するための蓄熱・放熱
機能、及びその制御機能を備えた蓄熱式空気調和機に関
する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner using air as a heat source, and a heat storage type air conditioner having a heat storage / radiation function for utilizing nighttime electric power and a control function thereof.
【０００２】[0002]
【従来の技術】蓄熱式空気調和機については、既にさま
ざまな開発がなされており、例えば、特開平３−１４４
２３６号公報に示されているような蓄熱式空気調和機が
ある。2. Description of the Related Art Various developments have already been made for a heat storage type air conditioner, for example, JP-A-3-144.
There is a heat storage type air conditioner as shown in Japanese Patent No. 236.
【０００３】その基本的な技術について述べると、図５
に示すように、室外機１は、圧縮機２、四方弁３ａ、熱
源側熱交換器４、第１膨張弁５ａ、第１切替弁ＫＶ１、
第１補助熱交換器７ａと第２補助熱交換器７ｂとからな
る冷媒対冷媒熱交換器ＨＥＸ、蓄熱用熱交換器８ａと放
熱用熱交換器８ｂとからなる蓄熱槽ＳＴＲと蓄熱材であ
る水９、冷媒の流路を切替える第２切替弁ＫＶ２、冷媒
量調節タンク１１及び液冷媒を搬送する液冷媒搬送ポン
プＰＭとから構成されている。また、複数の室内機１３
ａ，１３ｂは、利用側熱交換器１４ａ，１４ｂから構成
されている。The basic technique is shown in FIG.
As shown in, the outdoor unit 1 includes a compressor 2, a four-way valve 3a, a heat source side heat exchanger 4, a first expansion valve 5a, a first switching valve KV1,
A refrigerant-to-refrigerant heat exchanger HEX including a first auxiliary heat exchanger 7a and a second auxiliary heat exchanger 7b, a heat storage tank STR including a heat storage heat exchanger 8a and a heat radiation heat exchanger 8b, and a heat storage material. It is composed of water 9, a second switching valve KV2 that switches the flow path of the refrigerant, a refrigerant amount adjustment tank 11, and a liquid refrigerant transfer pump PM that transfers the liquid refrigerant. In addition, a plurality of indoor units 13
a and 13b are composed of utilization side heat exchangers 14a and 14b.
【０００４】また、熱源側冷凍サイクルは、圧縮機２、
四方弁３ａ、熱源側熱交換器４、第１膨張弁５ａ、第１
切替弁ＫＶ１、冷媒対冷媒熱交換器ＨＥＸの第１補助熱
交換器７ａ、蓄熱槽ＳＴＲの蓄熱用熱交換器８ａとから
構成されている。The refrigeration cycle on the heat source side includes a compressor 2,
Four-way valve 3a, heat source side heat exchanger 4, first expansion valve 5a, first
It is composed of a switching valve KV1, a first auxiliary heat exchanger 7a of the refrigerant-to-refrigerant heat exchanger HEX, and a heat storage heat exchanger 8a of the heat storage tank STR.
【０００５】利用側冷凍サイクルは、冷媒対冷媒熱交換
器ＨＥＸの第２補助熱交換器７ｂと蓄熱槽ＳＴＲの放熱
用熱交換器８ｂ、冷媒の流路を切替える第２切替弁ＫＶ
２、冷媒量調節タンク１１、液冷媒を搬送する液冷媒搬
送ポンプＰＭ、室内機１３ａ，１３ｂとから構成されて
いる。The utilization side refrigeration cycle includes a second auxiliary heat exchanger 7b of the refrigerant-refrigerant heat exchanger HEX, a heat radiating heat exchanger 8b of the heat storage tank STR, and a second switching valve KV for switching the refrigerant flow path.
2, a refrigerant amount adjustment tank 11, a liquid refrigerant transfer pump PM that transfers a liquid refrigerant, and indoor units 13a and 13b.
【０００６】次に、その冷凍サイクルについて説明す
る。この冷凍サイクルは、冬季暖房モ−ドと夏季冷房モ
−ドに大別することができ、それぞれのモ−ドの中でも
さらに蓄熱槽ＳＴＲ内に温水を作る夜間蓄熱運転（製氷
する夜間製氷運転）と、昼間の暖房運転（冷房運転）に
分かれている。尚、夏季冷房モ−ドと昼間の暖房運転モ
−ドについては、詳細な説明は割愛し、冬季の夜間蓄熱
運転モ−ドについてのみ説明する。Next, the refrigerating cycle will be described. This refrigeration cycle can be roughly divided into a winter heating mode and a summer cooling mode. Even in each mode, night heat storage operation for producing hot water in the heat storage tank STR (night ice making operation for ice making) And heating operation (cooling operation) in the daytime. The detailed description of the summer cooling mode and the daytime heating operation mode will be omitted, and only the winter night heat storage operation mode will be described.
【０００７】四方弁３ａのモ−ドについては、圧縮機２
の吐出側と蓄熱槽ＳＴＲとを、かつ圧縮機２の吸入側と
熱源側熱交換器４とを連通する場合を暖房モ−ドと定義
する。Regarding the mode of the four-way valve 3a, the compressor 2
The case where the discharge side and the heat storage tank STR and the suction side of the compressor 2 and the heat source side heat exchanger 4 communicate with each other are defined as a heating mode.
【０００８】また、第１切替弁ＫＶ１については熱源側
冷凍サイクル内にて蓄熱槽ＳＴＲと第１膨張弁５ａとを
連通する設定を第１ＳＴＲ回路と定義する。With respect to the first switching valve KV1, the setting for connecting the heat storage tank STR and the first expansion valve 5a in the heat source side refrigeration cycle is defined as a first STR circuit.
【０００９】熱源側冷凍サイクルにおいて、蓄熱槽ＳＴ
Ｒが作用し、冷媒対冷媒熱交換器ＨＥＸは作用しないよ
うに第１切替弁ＫＶ１を第１ＳＴＲ回路へ切替える。こ
の時、液冷媒搬送ポンプＰＭは停止しており、利用側冷
凍サイクルは作用しない。この熱源側冷凍サイクルの作
用について、以下説明する。In the heat source side refrigeration cycle, the heat storage tank ST
The first switching valve KV1 is switched to the first STR circuit so that R acts and the refrigerant-to-refrigerant heat exchanger HEX does not act. At this time, the liquid refrigerant transfer pump PM is stopped, and the use side refrigeration cycle does not operate. The operation of the heat source side refrigeration cycle will be described below.
【００１０】四方弁３ａを暖房モ−ド、第１膨張弁５ａ
を所定の開度、第１切替弁ＫＶ１を第１ＳＴＲ回路とす
る。この時、圧縮機２から送られる高温高圧の冷媒は、
蓄熱槽ＳＴＲの蓄熱用熱交換器８ａ内にて凝縮し、蓄熱
材である水９を加熱する。その後、第１膨張弁５ａで減
圧されて液あるいは二相状態となり、熱源側熱交換器４
にて蒸発し、圧縮機２へ戻る。この様な作用により、蓄
熱槽ＳＴＲ内の水が温水となり、蓄熱されていく。The four-way valve 3a is a heating mode, and the first expansion valve 5a.
Is a predetermined opening degree, and the first switching valve KV1 is a first STR circuit. At this time, the high-temperature and high-pressure refrigerant sent from the compressor 2 is
It condenses in the heat storage heat exchanger 8a of the heat storage tank STR and heats the water 9, which is a heat storage material. After that, the pressure is reduced by the first expansion valve 5a to become a liquid or two-phase state, and the heat source side heat exchanger 4
Then, it evaporates and returns to the compressor 2. By such an action, the water in the heat storage tank STR becomes hot water and heat is stored.
【００１１】以上のように、夜間の余剰電力エネルギー
を熱に変換して蓄熱しておき、昼間にその熱エネルギ−
を利用することにより、熱源機の設備容量を低減でき、
かつ電力利用の平準化が図れる。As described above, the surplus power energy at night is converted into heat and stored, and the heat energy
By using, the installed capacity of the heat source machine can be reduced,
In addition, power usage can be leveled.
【００１２】[0012]
【発明が解決しようとする課題】しかしながら、前述の
従来例では、冬季暖房モ−ドにおいて、正月休みなど長
期休暇の時は、長い間システム停止しているために、外
気への熱ロスにより蓄熱槽ＳＴＲ内の水温が外気温付近
まで低下して、休暇明けの夜間蓄熱運転は、水温が低い
所から開始されることになる。However, in the above-mentioned conventional example, in the winter heating mode, during long holidays such as New Year holidays, the system has been stopped for a long time, so heat storage due to heat loss to the outside air. The water temperature in the tank STR decreases to near the outside temperature, and the nighttime heat storage operation after vacation starts from a place where the water temperature is low.
【００１３】この様な低水温での蓄熱運転は、水温に影
響を受けて蓄熱用熱交換器８ａ内の冷媒凝縮圧力が低下
するため、圧縮機２吐出圧力が許容圧力下限値以下とな
る。In such a heat storage operation at a low water temperature, since the refrigerant condensation pressure in the heat storage heat exchanger 8a is affected by the water temperature, the discharge pressure of the compressor 2 becomes lower than the allowable pressure lower limit value.
【００１４】従って、機体保護による運転停止を引き起
こし、システムの信頼性が低下するという欠点を有して
いた。Therefore, there is a drawback that the operation is stopped due to the protection of the machine body and the reliability of the system is lowered.
【００１５】そこで、本発明は上記欠点を鑑み、冬季暖
房モ−ドにおいて、蓄熱槽内の水温が所定以下となるこ
とを防止し、正常な蓄熱運転を実施する蓄熱式空気調和
機を提供することを目的とするものである。In view of the above drawbacks, the present invention provides a heat storage type air conditioner which prevents the water temperature in the heat storage tank from falling below a predetermined level in the winter heating mode and performs a normal heat storage operation. That is the purpose.
【００１６】[0016]
【課題を解決するための手段】上記課題を解決する本発
明の技術的手段は、圧縮機と、第１四方弁と、熱源側熱
交換器と、第１補助熱交換器と第２補助熱交換器とから
なる冷媒対冷媒熱交換器の第１補助熱交換と、第１膨張
弁、かつ第２膨張弁及び蓄熱用熱交換器と放熱用熱交換
器と蓄熱材とからなる蓄熱槽の蓄熱用熱交換器とを前記
冷媒対冷媒熱交換器の第１補助熱交換器と前記第１膨張
弁と並列に接続してなる熱源側冷凍サイクルと、液冷媒
搬送ポンプと第２四方弁と 冷媒タンクからなるポンプ
ユニットと、利用側熱交換器と室内流量弁と室内ファン
とからなる複数の室内ユニットとを接続し、かつ第１流
量弁と第２補助熱交換器、及び第２流量弁と前記放熱用
熱交換器と二方弁を並列に接続してなる利用側冷凍サイ
クルとからなり、冬季暖房において、夜間蓄熱運転か、
昼間暖房運転か、あるいはシステム停止かを検知するモ
−ド検知手段と、前記蓄熱材の温度を検出する蓄熱材温
度検知手段と、前記モ−ド検知手段によりシステム停止
であることを検知し前記蓄熱材の温度が予め決められた
第１所定値より下回る場合には蓄熱運転の必要有りと判
断する温度判定手段と、前記温度判定手段によって蓄熱
運転の必要有りと判断した場合に、前記蓄熱材の温度が
予め決められた第２所定値より上回るまで蓄熱運転を実
施する蓄熱運転駆動手段とからなる第１制御装置を備え
たものである。The technical means of the present invention for solving the above-mentioned problems is to provide a compressor, a first four-way valve, a heat source side heat exchanger, a first auxiliary heat exchanger and a second auxiliary heat. A first auxiliary heat exchange of the refrigerant-to-refrigerant heat exchanger, which comprises an exchanger, and a first expansion valve, a second expansion valve, a heat storage heat exchanger, a heat radiating heat exchanger, and a heat storage tank. A heat source side refrigeration cycle in which a heat storage heat exchanger is connected in parallel with the first auxiliary heat exchanger of the refrigerant-refrigerant heat exchanger and the first expansion valve, a liquid refrigerant transfer pump, and a second four-way valve. A pump unit including a refrigerant tank, a plurality of indoor units including a use-side heat exchanger, an indoor flow valve, and an indoor fan are connected to each other, and a first flow valve, a second auxiliary heat exchanger, and a second flow valve. And a heat-sink for heat dissipation and a user-side refrigeration cycle in which a two-way valve is connected in parallel. In the seasonal heating, night heat storage operation,
A mode detecting means for detecting whether it is a daytime heating operation or a system stop, a heat storage material temperature detecting means for detecting the temperature of the heat storage material, and a mode detecting means for detecting that the system is stopped. When the temperature of the heat storage material is lower than a first predetermined value determined in advance, the temperature determination means determines that the heat storage operation is necessary, and when the temperature determination means determines that the heat storage operation is necessary, the heat storage material The heat storage operation driving means for executing the heat storage operation until the temperature of is higher than the second predetermined value determined in advance is provided.
【００１７】また、冬季暖房において、夜間蓄熱運転
か、昼間暖房運転か、あるいはシステム停止かを検知す
るモ−ド検知手段と、翌日が運転予定であるかどうかを
検知するスケジュ−リング検知手段と、前記蓄熱材の温
度を検出する蓄熱材温度検知手段と、前記スケジュ−リ
ング検知手段により検知された運転予定日の前記蓄熱材
の温度を予測する蓄熱材温度予測手段と、前記モ−ド検
知手段によりシステム停止であることを検知し、前記蓄
熱材温度予測手段により予測された前記蓄熱材の温度が
予め決められた第３所定値より下回る場合には蓄熱運転
の必要有りと判断する温度判定手段と、前記温度判定手
段により蓄熱運転の必要有りと判断した場合に、前記蓄
熱材温度予測手段により前記蓄熱材の温度が第１所定値
を下回ると予測される日の前日夜間に蓄熱運転の指令を
出す蓄熱予定指令手段と、前記蓄熱予定指令手段による
蓄熱運転の要求により、前記蓄熱材温度検知手段により
検知された前記蓄熱材の温度が予め決められた第２所定
値を上回るまで蓄熱運転を実施する蓄熱運転駆動手段と
からなる第２制御装置を備えたものである。In winter heating, a mode detecting means for detecting night heat storage operation, a daytime heating operation, or a system stoppage, and a scheduling detecting means for detecting whether or not the next day is scheduled for operation. A heat storage material temperature detecting means for detecting the temperature of the heat storage material; a heat storage material temperature predicting means for predicting the temperature of the heat storage material on the scheduled operation date detected by the scheduling detection means; and the mode detection Means for detecting that the system is stopped, and if the temperature of the heat storage material predicted by the heat storage material temperature predicting means is lower than a third predetermined value determined in advance, it is determined that the heat storage operation is necessary. And the temperature determining means determines that the heat storage operation is necessary, the heat storage material temperature predicting means predicts that the temperature of the heat storage material falls below a first predetermined value. A heat storage schedule command means for issuing a heat storage operation command at night on the day before the day, and a request for heat storage operation by the heat storage schedule command means, whereby the temperature of the heat storage material detected by the heat storage material temperature detection means is predetermined. 2 is provided with a second control device including heat storage operation drive means for performing heat storage operation until the temperature exceeds a predetermined value.
【００１８】[0018]
【作用】本発明の蓄熱式空気調和機は、モ−ド検知手段
によって、冬季暖房における夜間蓄熱運転か、昼間暖房
運転か、あるいはシステム停止かを検知する。また、蓄
熱材温度検知手段によって蓄熱材の温度を検出する。In the heat storage type air conditioner of the present invention, the mode detection means detects whether the nighttime heat storage operation in the winter heating, the daytime heating operation, or the system stop. Further, the temperature of the heat storage material is detected by the heat storage material temperature detection means.
【００１９】この時、モ−ド検知手段によって冬季暖房
におけるシステム停止を検知し、且つ前記蓄熱材の温度
が予め決められた第１所定値より下回る場合には、温度
判定手段によって前記蓄熱材に温熱を蓄える蓄熱運転の
必要有りと判断する。At this time, if the mode detection means detects the system stop in winter heating and the temperature of the heat storage material is lower than the first predetermined value, the temperature determination means determines that the heat storage material Judge that it is necessary to perform heat storage operation to store heat.
【００２０】前記温度判定手段によって蓄熱運転の必要
有りの場合は、蓄熱駆動手段により、圧縮機と第１四方
弁と第２膨張弁を駆動して、前記蓄熱材の温度が予め決
められた第２所定値を上回るまで蓄熱運転を実施する。When it is necessary to perform the heat storage operation by the temperature determining means, the heat storage driving means drives the compressor, the first four-way valve and the second expansion valve to set the temperature of the heat storage material to a predetermined value. 2 Carry out heat storage operation until it exceeds the specified value.
【００２１】以上の様な操作により、蓄熱材の温度を常
に第１所定値以上に保つことにより、蓄熱運転時の凝縮
圧力の低下を防止できるため、長期休暇明けにおいても
正常な蓄熱運転を提供できるという効果がある。By keeping the temperature of the heat storage material at the first predetermined value or more by the above operation, it is possible to prevent the condensation pressure from decreasing during the heat storage operation, so that the normal heat storage operation is provided even after a long vacation. The effect is that you can do it.
【００２２】また、モ−ド検知手段によって冬季暖房に
おけるシステム停止を検知し、且つスケジュ−リング検
知手段によって翌日が運転予定でないことを検知した
時、蓄熱材温度予測手段によって、前記蓄熱材温度検知
手段により検知された前記蓄熱材の温度を基に、運転予
定日の蓄熱材の温度を予測する。Further, when the mode detection means detects the system stop in winter heating and the scheduling detection means detects that the next day is not scheduled to be operated, the heat storage material temperature prediction means detects the heat storage material temperature. Based on the temperature of the heat storage material detected by the means, the temperature of the heat storage material on the scheduled operation date is predicted.
【００２３】前記モ−ド検知手段によりシステム停止で
あることを検知し、且つ前記蓄熱材温度予測手段により
予測された温度が予め決められた第３所定値より下回る
場合には、前記温度判定手段によって蓄熱運転の必要有
りと判断する。If the mode detecting means detects that the system is stopped and the temperature predicted by the heat storage material temperature predicting means is lower than the third predetermined value, the temperature determining means is determined. It is judged that the heat storage operation is necessary according to.
【００２４】蓄熱予定指令手段は、前記温度判定手段に
より蓄熱運転の必要有りと判断した場合に、前記蓄熱材
の温度が第１所定値を下回ると予測される日の前日夜間
に蓄熱運転を実施する様指令を出す。The heat storage schedule command means carries out the heat storage operation on the night before the day on which the temperature of the heat storage material is predicted to fall below the first predetermined value when the temperature determination means determines that the heat storage operation is necessary. Issue a command to do so.
【００２５】蓄熱運転駆動手段は、前記蓄熱予定指令手
段からの蓄熱運転指令を受けて、前記蓄熱材の温度が予
め決められた第２所定値を上回るまで蓄熱運転を実施す
る。The heat storage operation drive means receives the heat storage operation command from the heat storage schedule command means and carries out the heat storage operation until the temperature of the heat storage material exceeds a second predetermined value.
【００２６】以上の様な操作により、蓄熱材の温度を常
に第１所定値以上に保つことにより、蓄熱運転時の凝縮
圧力の低下を防止できるため、長期休暇明けにおいても
正常な蓄熱運転を提供できるだけでなく、蓄熱材の水温
維持のための蓄熱運転を夜間に実施するため安価な電力
料金を提供できるという効果も併せ持つ。By keeping the temperature of the heat storage material at the first predetermined value or more by the above operation, it is possible to prevent the condensation pressure from decreasing during the heat storage operation, so that the normal heat storage operation is provided even after a long vacation. Not only that, but it also has the effect of being able to provide an inexpensive electricity charge because the heat storage operation for maintaining the water temperature of the heat storage material is performed at night.
【００２７】[0027]
【実施例】以下、本発明の実施例を添付図面に基づいて
説明を行うが、従来と同一構成については同一符号を付
し、その詳細な説明を省略する。Embodiments of the present invention will be described below with reference to the accompanying drawings. The same components as those in the prior art will be designated by the same reference numerals and detailed description thereof will be omitted.
【００２８】図１は本発明の第１の実施例の冷凍サイク
ル図である。本蓄熱式空気調和機は室外ユニット１’
と、蓄熱槽ＳＴＲと、ポンプユニットＰＵと、室内ユニ
ット１３ａ，１３ｂとから構成されている。FIG. 1 is a refrigeration cycle diagram of the first embodiment of the present invention. This heat storage air conditioner is an outdoor unit 1 '
, A heat storage tank STR, a pump unit PU, and indoor units 13a and 13b.
【００２９】室外ユニット１’は、圧縮機２、第１四方
弁３ａ、熱源側熱交換器４、第１膨張弁５ａ、第２膨張
弁５ｂ、室外ファン６、第１補助熱交換器７ａと第２補
助熱交換器７ｂとからなる冷媒対冷媒熱交換器ＨＥＸ、
第２補助熱交換器７ｂ用の第１流量弁ＲＶ１、蓄熱槽Ｓ
ＴＲの放熱用熱交換器８ｂ用の第２流量弁ＲＶ２から構
成されている。The outdoor unit 1'includes a compressor 2, a first four-way valve 3a, a heat source side heat exchanger 4, a first expansion valve 5a, a second expansion valve 5b, an outdoor fan 6 and a first auxiliary heat exchanger 7a. A refrigerant-to-refrigerant heat exchanger HEX including a second auxiliary heat exchanger 7b,
First flow valve RV1 for second auxiliary heat exchanger 7b, heat storage tank S
It is composed of a second flow valve RV2 for the heat radiating heat exchanger 8b of TR.
【００３０】蓄熱槽ＳＴＲは、蓄熱材である水９と蓄熱
用熱交換器８ａ、放熱用熱交換器８ｂからなり、ポンプ
ユニットＰＵは冷媒タンク１１、液冷媒搬送ポンプＰ
Ｍ、及び第２四方弁３ｂとからなり、室内ユニット１３
ａ，１３ｂは、利用側交換器１４ａ，１４ｂ、室内流量
弁１５ａ，１５ｂとから構成されている。The heat storage tank STR comprises water 9 as a heat storage material, a heat storage heat exchanger 8a, and a heat radiation heat exchanger 8b. The pump unit PU is a refrigerant tank 11 and a liquid refrigerant transfer pump P.
The indoor unit 13 including the M and the second four-way valve 3b.
a and 13b are composed of utilization side exchangers 14a and 14b and indoor flow valves 15a and 15b.
【００３１】上記構成において、熱源側冷凍サイクル
は、圧縮機２と、第１四方弁３ａと、熱源側熱交換器４
と、第１補助熱交換器７ａと第２補助熱交換器７ｂとか
らなる冷媒対冷媒熱交換器ＨＥＸの第１補助熱交換器７
ａと、第１膨張弁５ａ、かつ第２膨張弁５ｂ及び蓄熱用
熱交換器８ａと放熱用熱交換器８ｂと蓄熱材９（例えば
水）とからなる蓄熱槽ＳＴＲの蓄熱用熱交換器８ａを冷
媒対冷媒熱交換器ＨＥＸの第１補助熱交換器７ａと第１
膨張弁５ａを並列に接続してなる。In the above-mentioned structure, the heat source side refrigeration cycle includes the compressor 2, the first four-way valve 3a, and the heat source side heat exchanger 4.
And the first auxiliary heat exchanger 7 of the refrigerant-to-refrigerant heat exchanger HEX, which includes the first auxiliary heat exchanger 7a and the second auxiliary heat exchanger 7b.
a, the first expansion valve 5a, the second expansion valve 5b, the heat storage heat exchanger 8a, the heat radiation heat exchanger 8b, and the heat storage material 9 (for example, water), the heat storage heat exchanger 8a of the heat storage tank STR. The first auxiliary heat exchanger 7a of the refrigerant-to-refrigerant heat exchanger HEX
The expansion valves 5a are connected in parallel.
【００３２】利用側冷凍サイクルは、液冷媒搬送ポンプ
ＰＭと第２四方弁３ｂと冷媒タンク１１と、利用側熱交
換器１４ａ，１４ｂと室内流量弁１５ａ，１５ｂとを接
続し、かつ第１流量弁ＲＶ１と第２補助熱交換器７ｂ、
及び第２流量弁ＲＶ２と放熱用熱交換器８ｂと二方弁Ｎ
Ｖ（好ましくは電磁弁）を並列に接続してなる。The use-side refrigeration cycle connects the liquid-refrigerant carrier pump PM, the second four-way valve 3b, the refrigerant tank 11, the use-side heat exchangers 14a and 14b, and the indoor flow valves 15a and 15b, and the first flow rate. The valve RV1 and the second auxiliary heat exchanger 7b,
And the second flow valve RV2, the heat radiation heat exchanger 8b, and the two-way valve N.
V (preferably solenoid valves) are connected in parallel.
【００３３】制御装置ＣＮ１は、冬季暖房運転におい
て、夜間蓄熱運転か、昼間暖房運転か、あるいはシステ
ム停止かをを検知するモ−ド検知手段１８と、蓄熱材９
の温度Ｔｗを検出する蓄熱材温度検知手段１９と、モ−
ド検知手段１８によってシステム停止であることを検知
し、且つ蓄熱材の温度が予め決められた第１所定値Ｔ１
より下回る場合に蓄熱材９に温熱を蓄える蓄熱運転の必
要の有無を判断する温度判定手段２０と、温度判定手段
２０によって蓄熱運転の必要有りと判断した場合に蓄熱
材の温度が予め決められた第２所定値Ｔ２を上回るまで
圧縮機２と四方弁３ａと第２膨張弁５ｂを駆動して蓄熱
運転を実施する蓄熱運転駆動手段２１とからなる。The controller CN1 detects the night heat storage operation, the daytime heating operation, or the system stop during the winter heating operation, and the heat storage material 9.
Storage material temperature detecting means 19 for detecting the temperature Tw of the
A first predetermined value T1 in which the temperature of the heat storage material is determined in advance by detecting that the system is stopped by the battery detection means 18.
When it is lower than the temperature, the temperature determination means 20 determines whether or not the heat storage operation of storing the heat in the heat storage material 9 is necessary, and the temperature of the heat storage material is predetermined when the temperature determination means 20 determines that the heat storage operation is necessary. The heat storage operation drive means 21 is configured to drive the compressor 2, the four-way valve 3a, and the second expansion valve 5b to perform the heat storage operation until the second predetermined value T2 is exceeded.
【００３４】ここで、サ−ミスタ１７は、蓄熱材温度検
知手段１９の一具体例として示している。Here, the thermistor 17 is shown as a specific example of the heat storage material temperature detecting means 19.
【００３５】次に、この第１の実施例の構成における作
用を説明する。ここで、従来例で説明した第１切替弁Ｋ
Ｖ１の代わりに第１膨張弁５ａおよび第２膨張弁５ｂ、
第２切替弁ＫＶ２の代わりに第１流量弁ＲＶ１および第
２流量弁ＲＶ２を用いている。第１ＳＴＲ回路は熱源側
冷凍サイクル内にて蓄熱槽ＳＴＲと第１膨張弁５ａとを
連通する設定とし、第１ＨＥＸ回路は冷媒対冷媒熱交換
器ＨＥＸと第２膨張弁５ｂとを連通する設定と定義する
ことで、第１制御装置ＣＮ１の作用以外は従来例と同一
作用であることから、各運転パタ−ンの作用については
説明を省略する。そして、従来例と異なる第１制御装置
ＣＮ１の作用について、図２のフローチャ−トを用いて
説明する。Next, the operation of the structure of the first embodiment will be described. Here, the first switching valve K described in the conventional example
A first expansion valve 5a and a second expansion valve 5b instead of V1;
The first flow valve RV1 and the second flow valve RV2 are used instead of the second switching valve KV2. The first STR circuit is set to communicate the heat storage tank STR and the first expansion valve 5a in the heat source side refrigeration cycle, and the first HEX circuit is set to communicate the refrigerant-refrigerant heat exchanger HEX and the second expansion valve 5b. By definition, the operation is the same as that of the conventional example except the operation of the first control device CN1, and therefore the description of the operation of each operation pattern is omitted. The operation of the first control device CN1 different from the conventional example will be described with reference to the flowchart of FIG.
【００３６】ＳＴＥＰ１は、モ−ド検知手段１８によっ
て、冬季暖房におけるシステム停止かどうかを検知し、
システム停止であればＳＴＥＰ２に移行し、それ以外は
ル−チンから抜ける。In STEP 1, the mode detecting means 18 detects whether or not the system is stopped during winter heating.
If the system is stopped, the process proceeds to STEP2, otherwise the routine is exited.
【００３７】ＳＴＥＰ２は、蓄熱材温度検知手段１９に
よって、蓄熱材９の温度Ｔｗを検出し、ＳＴＥＰ３へ移
行する。ＳＴＥＰ３は、温度判定手段２０により蓄熱材
９の温度Ｔｗが予め決められた第１所定値Ｔ１より下回
る場合（例えばＴｗ＜３０℃）に蓄熱材９に温熱を蓄え
る蓄熱運転の必要有と判断し、必要有ならばＳＴＥＰ４
へ移行し、必要でないならばル−チンから抜ける。In STEP 2, the temperature Tw of the heat storage material 9 is detected by the heat storage material temperature detection means 19, and the process proceeds to STEP 3. In STEP 3, the temperature determining means 20 determines that the heat storage operation for storing the heat in the heat storage material 9 is necessary when the temperature Tw of the heat storage material 9 is lower than a first predetermined value T1 determined in advance (for example, Tw <30 ° C.). , If necessary, STEP4
And move out of the routine if not needed.
【００３８】ＳＴＥＰ４では、蓄熱運転駆動手段２１に
よって、第２膨張弁５ｂを開け圧縮機２と四方弁３ａを
駆動して、蓄熱材９に温熱を蓄える蓄熱運転を実施して
ＳＴＥＰ５に移行する。In STEP 4, the heat storage operation drive means 21 opens the second expansion valve 5b to drive the compressor 2 and the four-way valve 3a to perform heat storage operation in which heat is stored in the heat storage material 9, and the process proceeds to STEP 5.
【００３９】ＳＴＥＰ５では、蓄熱運転駆動手段２１に
より蓄熱材９の温度Ｔｗが予め決められた第２所定値Ｔ
２に達したかどうか判断して、Ｔｗ＞Ｔ２（例えばＴｗ
＞４０℃）ならば蓄熱運転を終了するとしてＳＴＥＰ６
へ移行し、それ以外は再びＳＴＥＰ５の最初に移行す
る。In STEP 5, the temperature Tw of the heat storage material 9 is preset by the heat storage operation drive means 21 to a second predetermined value T.
It is judged whether or not the value reaches 2, and Tw> T2 (for example, Tw
> 40 ° C), the heat storage operation is considered to be terminated and STEP6
To step 5, and otherwise to step 5 again.
【００４０】ＳＴＥＰ６では、蓄熱運転を終了するた
め、蓄熱運転駆動手段２１によって、圧縮機２と四方弁
３ａを停止して第２膨張弁５ｂを閉じた後、ル−チンか
ら抜ける。In STEP 6, in order to end the heat storage operation, the heat storage operation drive means 21 stops the compressor 2 and the four-way valve 3a, closes the second expansion valve 5b, and then exits the routine.
【００４１】この様にして、ＳＴＥＰ１からＳＴＥＰ６
のルーチンを、暖房運転中繰り返すことによって、蓄熱
材の温度Ｔｗを常に第１所定値（Ｔ１＝３０℃）以上に
保つことができるめ、蓄熱運転時の凝縮圧力の低下を防
止し長期休暇明けにおいても正常な蓄熱運転を提供でき
る。In this way, STEP1 to STEP6
By repeating the above routine during the heating operation, the temperature Tw of the heat storage material can always be maintained at the first predetermined value (T1 = 30 ° C.) or higher, and the decrease in the condensation pressure during the heat storage operation can be prevented to allow a long vacation. Also in this, normal heat storage operation can be provided.
【００４２】以上の様に、上記実施例では蓄熱式空気調
和機において、モ−ド検知手段１８によって冬季暖房に
おけるシステム停止を検知し、且つ蓄熱材温度検知手段
１９によって蓄熱材９の温度Ｔｗを検出する。この時、
システム停止、且つ蓄熱材９の温度Ｔｗが予め決められ
た第１所定値Ｔ１より下回る場合には、温度判定手段２
０によって蓄熱材９に温熱を蓄える蓄熱運転の必要有り
と判断する。As described above, in the above embodiment, in the heat storage type air conditioner, the mode detection means 18 detects the system stop in winter heating, and the heat storage material temperature detection means 19 detects the temperature Tw of the heat storage material 9. To detect. This time,
When the system is stopped and the temperature Tw of the heat storage material 9 is lower than a predetermined first predetermined value T1, the temperature determination means 2
When 0, it is determined that the heat storage operation for storing the heat in the heat storage material 9 is necessary.
【００４３】温度判定手段２０によって蓄熱運転の必要
有りの場合は、蓄熱駆動手段２１により、圧縮機２と第
１四方弁３ａと第２膨張弁５ｂを駆動して、蓄熱材９の
温度Ｔｗが予め決められた第２所定値Ｔ２を上回るまで
蓄熱運転を実施する。When it is necessary to perform the heat storage operation by the temperature determining means 20, the heat storage driving means 21 drives the compressor 2, the first four-way valve 3a and the second expansion valve 5b so that the temperature Tw of the heat storage material 9 is reduced. The heat storage operation is performed until it exceeds a second predetermined value T2 determined in advance.
【００４４】以上の様な操作により、蓄熱材９の温度Ｔ
ｗを常に第１所定値Ｔ１以上に保つことにより、蓄熱運
転時の凝縮圧力の低下を防止できるため、長期休暇明け
においても正常な蓄熱運転を提供できるという効果があ
る。By the above operation, the temperature T of the heat storage material 9
By constantly maintaining w at or above the first predetermined value T1, it is possible to prevent a decrease in the condensation pressure during the heat storage operation, and thus it is possible to provide a normal heat storage operation even after a long vacation.
【００４５】また、第２の実施例を添付図面に基づいて
説明を行うが、第１の実施例と同一構成については同一
符号を付し、その詳細な説明を省略する。The second embodiment will be described with reference to the accompanying drawings. The same components as those of the first embodiment will be designated by the same reference numerals and detailed description thereof will be omitted.
【００４６】図４は本発明の第２の実施例における冷凍
サイクル図である。第２の実施例における構成は、第１
の実施例における第１制御装置ＣＮ１の代わりに第２制
御装置ＣＮ２を用いていること以外は第１の実施例と同
一構成であるので、異なる第２制御装置ＣＮ２のみ説明
する。FIG. 4 is a refrigeration cycle diagram in the second embodiment of the present invention. The configuration of the second embodiment is the first
Since the second control device CN2 is used in place of the first control device CN1 in this embodiment, the configuration is the same as that of the first embodiment, so only the different second control device CN2 will be described.
【００４７】第２制御装置ＣＮ２は、冬季暖房におい
て、夜間蓄熱運転か、昼間暖房運転か、あるいはシステ
ム停止かを検知するモ−ド検知手段１８と、翌日が運転
予定であるかどうかを検知するスケジュ−リング検知手
段２２と、蓄熱材９の温度Ｔｗを検出する蓄熱材温度検
知手段１９と、スケジュ−リング検知手段２２により検
知された運転予定日の蓄熱材９の温度Ｔｗ１を予測する
蓄熱材温度予測手段２３と、モ−ド検知手段１８により
システム停止であることを検知し、蓄熱材温度予測手段
２３により予測された蓄熱材の温度Ｔｗ１が予め決めら
れた第３所定値Ｔ３より下回る場合には蓄熱運転の必要
有りと判断する温度判定手段２０と、温度判定手段２０
により蓄熱運転の必要有りと判断した場合に、蓄熱材温
度予測手段２３により蓄熱材９の温度Ｔｗ１が第１所定
値Ｔ１を下回ると予測される日Ｄ１の前日夜間に蓄熱運
転の指令を出す蓄熱予定指令手段２４と、蓄熱予定指令
手段２４による蓄熱運転の要求により、蓄熱材温度検知
手段１９により検知された蓄熱材９の温度Ｔｗが予め決
められた第２所定値Ｔ２を上回るまで蓄熱運転を実施す
る蓄熱運転駆動手段２１とからなる第２制御装置からな
る。In the winter heating, the second control device CN2 detects the night heat storage operation, the daytime heating operation, or the system stop, and the mode detection means 18 and whether or not the next day is scheduled for operation. Schedule detection means 22, heat storage material temperature detection means 19 for detecting the temperature Tw of the heat storage material 9, and heat storage material for predicting the temperature Tw1 of the heat storage material 9 detected by the scheduling detection means 22 on the scheduled operation date. When the system is stopped by the temperature predicting means 23 and the mode detecting means 18, and the temperature Tw1 of the heat storage material predicted by the heat storage material temperature predicting means 23 is lower than a predetermined third predetermined value T3. Temperature determining means 20 for determining that the heat storage operation is necessary, and temperature determining means 20
When it is determined that the heat storage operation is necessary, the heat storage material temperature predicting unit 23 issues a heat storage operation command at night on the day before the day D1 when the temperature Tw1 of the heat storage material 9 is predicted to fall below the first predetermined value T1. The heat storage operation is performed until the temperature Tw of the heat storage material 9 detected by the heat storage material temperature detection means 19 exceeds a predetermined second predetermined value T2 by the schedule command means 24 and the request for the heat storage operation by the heat storage schedule command means 24. The second control device is composed of the heat storage operation drive means 21 to be executed.
【００４８】ここで、サ−ミスタ１７は、蓄熱材温度検
知手段１９の一具体例として示している。Here, the thermistor 17 is shown as a specific example of the heat storage material temperature detecting means 19.
【００４９】次に、この第２の実施例の構成における作
用を説明する。ここで、第２制御装置ＣＮ２の作用以外
は第１の実施例と同一作用であることから、各運転パタ
−ンの作用については説明を省略する。そして、第１の
実施例と異なる第２制御装置ＣＮ２の作用について、図
６のフローチャ−トを用いて説明する。Next, the operation of the structure of the second embodiment will be described. Here, except for the operation of the second control device CN2, the operation is the same as that of the first embodiment, so the description of the operation of each operation pattern is omitted. The operation of the second control device CN2 different from that of the first embodiment will be described with reference to the flow chart of FIG.
【００５０】ＳＴＥＰ１では、モ−ド検知手段１８によ
って、冬季暖房におけるシステム停止であるかどうかを
検知し、システム停止であればＳＴＥＰ２に移行し、そ
れ以外はル−チンから抜ける。In STEP 1, the mode detection means 18 detects whether or not the system is stopped in winter heating. If the system is stopped, the process proceeds to STEP 2, otherwise the routine is exited.
【００５１】ＳＴＥＰ２では、スケジュ−リング検知手
段１９によって、翌日が運転予定であるかどうかを検知
し、翌日が運転予定でなければＳＴＥＰ３に移行し、運
転予定であればル−チンから抜ける。In STEP 2, the scheduling detection means 19 detects whether or not the next day is scheduled for driving, and if the next day is not scheduled for driving, the process proceeds to STEP 3, and if scheduled for driving, the routine is exited.
【００５２】ＳＴＥＰ３では、蓄熱材温度検知手段１９
によって、蓄熱材９の温度Ｔｗを検出し、ＳＴＥＰ４へ
移行する。In STEP 3, the heat storage material temperature detecting means 19
Then, the temperature Tw of the heat storage material 9 is detected, and the process proceeds to STEP4.
【００５３】ＳＴＥＰ４では、蓄熱材温度予測手段２３
によって、スケジュ−リング検知手段２２により検知さ
れた運転予定日の蓄熱材温度Ｔｗ１を予測する。蓄熱材
９の温度低下ΔＴ℃の予測方法の１例としては、蓄熱材
９の１日当たりの温度低下分Δｔ（℃／日）を定め、そ
のΔｔに本日から運転予定日までの日数を乗じる方法が
ある。In STEP 4, the heat storage material temperature predicting means 23
Thus, the heat storage material temperature Tw1 of the scheduled operation date detected by the scheduling detection means 22 is predicted. As an example of a method for predicting the temperature decrease ΔT ° C. of the heat storage material 9, a temperature decrease amount Δt (° C./day) per day of the heat storage material 9 is determined, and the Δt is multiplied by the number of days from today to the scheduled operation date. There is.
【００５４】ＳＴＥＰ５では、温度判定手段２０によ
り、ＳＴＥＰ４で予測されたＴｗ１が予め決められた第
３所定値Ｔ３より下回る場合（例えばＴｗ１＜２５℃）
に蓄熱運転の必要有りと判断しＳＴＥＰ６へ移行し、そ
れ以外はル−チンから抜ける。In STEP 5, when the temperature determination means 20 determines that Tw1 predicted in STEP 4 is lower than the predetermined third predetermined value T3 (for example, Tw1 <25 ° C.).
When it is judged that the heat storage operation is necessary, the process proceeds to STEP6, and otherwise the routine is exited.
【００５５】ＳＴＥＰ６では、蓄熱材温度予測手段２３
により蓄熱材９の温度Ｔｗが第１所定値Ｔ１（Ｔ１＝３
０℃）を下回る日Ｄ１を予測する。そして、蓄熱予定指
令手段２４によって、予測された日Ｄ１の前日夜間に蓄
熱運転の指令を出す。In STEP 6, the heat storage material temperature predicting means 23
Therefore, the temperature Tw of the heat storage material 9 is the first predetermined value T1 (T1 = 3
Predict day D1 below 0 ° C). Then, the heat storage schedule command means 24 issues a heat storage operation command at night on the day before the predicted day D1.
【００５６】ＳＴＥＰ７では、蓄熱予定指令駆動手段２
４からの蓄熱運転の指示を受けて、蓄熱運転駆動手段２
１によって、第２膨張弁５ｂを開け圧縮機２と四方弁３
ａを駆動して、蓄熱材９に温熱を蓄える蓄熱運転を実施
してＳＴＥＰ８に移行する。In STEP 7, the heat storage schedule command drive means 2
4 receives a heat storage operation instruction from the heat storage operation driving means 2
1, the second expansion valve 5b is opened, and the compressor 2 and the four-way valve 3 are opened.
A is driven to carry out the heat storage operation of storing warm heat in the heat storage material 9, and the process proceeds to STEP8.
【００５７】ＳＴＥＰ８では、蓄熱運転駆動手段２１に
より、蓄熱材９の温度Ｔｗが予め決められた第２所定値
Ｔ２に達したかどうか判断して、Ｔｗ＞Ｔ２（例えばＴ
ｗ＞４０℃）ならば蓄熱運転を終了するとしてＳＴＥＰ
９へ移行し、それ以外は再びＳＴＥＰ８の最初に移行す
る。In STEP 8, the heat storage operation driving means 21 determines whether or not the temperature Tw of the heat storage material 9 has reached a predetermined second predetermined value T2, and Tw> T2 (for example, Tw> T2).
If w> 40 ° C), the heat storage operation is considered to be terminated
9 and other than that, the process proceeds to the beginning of STEP 8 again.
【００５８】ＳＴＥＰ９では、蓄熱運転を終了するた
め、蓄熱運転駆動手段２１によって、圧縮機２と四方弁
３ａを停止して第２膨張弁５ｂを閉じた後、ル−チンか
ら抜ける。In STEP 9, in order to end the heat storage operation, the heat storage operation drive means 21 stops the compressor 2 and the four-way valve 3a, closes the second expansion valve 5b, and then exits the routine.
【００５９】この様にして、ＳＴＥＰ１からＳＴＥＰ９
のルーチンを、暖房運転中繰り返すことによって、蓄熱
材の温度Ｔｗを常に第１所定値（Ｔ１＝３０℃）以上に
保つことができるめ、蓄熱運転時の凝縮圧力の低下を防
止し長期休暇明けにおいても正常な蓄熱運転を提供でき
るだけでなく、蓄熱材の水温維持のための蓄熱運転を夜
間に実施するため安価な電力料金を提供できるという効
果も併せ持つ。In this way, STEP1 to STEP9
By repeating the above routine during the heating operation, the temperature Tw of the heat storage material can always be maintained at the first predetermined value (T1 = 30 ° C.) or higher, and the decrease in the condensation pressure during the heat storage operation can be prevented to allow a long vacation. In addition to not only providing normal heat storage operation, but also having the effect of being able to provide an inexpensive electricity charge because the heat storage operation for maintaining the water temperature of the heat storage material is performed at night.
【００６０】以上の様に、上記実施例では蓄熱式空気調
和機において、モ−ド検知手段１８によって冬季暖房に
おけるシステム停止を検知し、且つスケジュ−リング検
知手段２２によって翌日が運転予定でないことを検知し
た時、蓄熱材温度予測手段２３によって、蓄熱材温度検
知手段１９により検知された蓄熱材９の温度Ｔｗを基
に、運転予定日の蓄熱材９の温度Ｔｗ１を予測する。As described above, in the above embodiment, in the heat storage type air conditioner, the mode detecting means 18 detects the system stop in winter heating, and the scheduling detecting means 22 confirms that the operation is not scheduled for the next day. When detected, the heat storage material temperature predicting means 23 predicts the temperature Tw1 of the heat storage material 9 on the scheduled operation date based on the temperature Tw of the heat storage material 9 detected by the heat storage material temperature detecting means 19.
【００６１】モ−ド検知手段１８によりシステム停止で
あることを検知し、且つ蓄熱材温度予測手段２３により
予測された温度Ｔｗ１が予め決められた第３所定値Ｔ３
より下回る場合には、温度判定手段２０によって蓄熱運
転の必要有りと判断する。The temperature Tw1 predicted by the heat storage material temperature predicting means 23 when the mode detecting means 18 detects that the system is stopped, and the predetermined third predetermined value T3.
If it is lower than the temperature, the temperature determination means 20 determines that the heat storage operation is necessary.
【００６２】蓄熱予定指令手段２４は、温度判定手段２
０により蓄熱運転の必要有りと判断した場合に、蓄熱材
９の温度Ｔｗが第１所定値Ｔ１を下回ると予測される日
Ｄ１の前日夜間に蓄熱運転を実施する様指令を出す。The heat storage schedule command means 24 is the temperature determination means 2
When it is determined that the heat storage operation is necessary from 0, a command is issued to perform the heat storage operation in the night before the day D1 when the temperature Tw of the heat storage material 9 is predicted to be lower than the first predetermined value T1.
【００６３】蓄熱運転駆動手段２１は、蓄熱予定指令手
段２４からの蓄熱運転指令を受けて、蓄熱材９の温度Ｔ
ｗが予め決められた第２所定値Ｔ２を上回るまで蓄熱運
転を実施する。The heat storage operation drive means 21 receives the heat storage operation command from the heat storage schedule command means 24 and receives the temperature T of the heat storage material 9.
The heat storage operation is performed until w exceeds a predetermined second predetermined value T2.
【００６４】以上の様な操作により、蓄熱材の温度を常
に第１所定値以上に保つことにより、蓄熱運転時の凝縮
圧力の低下を防止できるため、長期休暇明けにおいても
正常な蓄熱運転を提供できるだけでなく、蓄熱材の水温
維持のための蓄熱運転を夜間に実施するため安価な電力
料金を提供できるという効果も併せ持つ。By keeping the temperature of the heat storage material at the first predetermined value or more by the above operation, it is possible to prevent the condensation pressure from decreasing during the heat storage operation, so that the normal heat storage operation can be provided even after a long vacation. Not only that, but it also has the effect of being able to provide an inexpensive electricity charge because the heat storage operation for maintaining the water temperature of the heat storage material is performed at night.
【００６５】[0065]
【発明の効果】以上のように本発明は、蓄熱槽を介して
熱源側冷凍サイクルと、利用側冷凍サイクルとからなる
蓄熱式空気調和機において、モ−ド検知手段によって、
冬季暖房における夜間蓄熱運転か、昼間暖房運転か、あ
るいはシステム停止かを検知し、且つ蓄熱材温度検知手
段によって蓄熱材の温度を検出する。As described above, according to the present invention, in the heat storage type air conditioner consisting of the heat source side refrigeration cycle and the utilization side refrigeration cycle through the heat storage tank, the mode detecting means is used.
The night heat storage operation in winter heating, the daytime heating operation, or the system stop is detected, and the temperature of the heat storage material is detected by the heat storage material temperature detection means.
【００６６】この時、モ−ド検知手段によって冬季暖房
におけるシステム停止を検知し、且つ前記蓄熱材の温度
が予め決められた第１所定値より下回る場合には、温度
判定手段によって前記蓄熱材に温熱を蓄える蓄熱運転の
必要有りと判断する。At this time, when the system detection in the winter heating is detected by the mode detection means and the temperature of the heat storage material is lower than the first predetermined value determined in advance, the temperature determination means determines that the heat storage material is stored. Judge that it is necessary to perform heat storage operation to store heat.
【００６７】前記温度判定手段によって蓄熱運転の必要
有りの場合は、蓄熱駆動手段により、圧縮機と第１四方
弁と第２膨張弁を駆動して、前記蓄熱材の温度が予め決
められた第２所定値を上回るまで蓄熱運転を実施する。When heat storage operation is required by the temperature determination means, the heat storage driving means drives the compressor, the first four-way valve and the second expansion valve to set the temperature of the heat storage material to a predetermined value. 2 Carry out heat storage operation until it exceeds the specified value.
【００６８】以上の様な操作により、蓄熱材の温度を常
に第１所定値以上に保つことにより、蓄熱運転時の凝縮
圧力の低下を防止できるため、長期休暇明けにおいても
正常な蓄熱運転を提供できるという効果がある。By keeping the temperature of the heat storage material at the first predetermined value or more by the above operation, it is possible to prevent the decrease of the condensation pressure during the heat storage operation, so that the normal heat storage operation is provided even after a long vacation. The effect is that you can do it.
【００６９】また、モ−ド検知手段によって冬季暖房に
おけるシステム停止を検知し、且つスケジュ−リング検
知手段によって翌日が運転予定でないことを検知した
時、蓄熱材温度予測手段によって、前記蓄熱材温度検知
手段により検知された前記蓄熱材の温度を基に、運転予
定日の蓄熱材の温度を予測する。Further, when the mode detecting means detects the system stop in winter heating and the scheduling detecting means detects that the next day is not scheduled to be operated, the heat storage material temperature predicting means detects the heat storage material temperature. Based on the temperature of the heat storage material detected by the means, the temperature of the heat storage material on the scheduled operation date is predicted.
【００７０】前記モ−ド検知手段によりシステム停止で
あることを検知し、且つ前記蓄熱材温度予測手段により
予測された温度が予め決められた第３所定値より下回る
場合には、前記温度判定手段によって蓄熱運転の必要有
りと判断する。When the mode detecting means detects that the system is stopped and the temperature predicted by the heat storage material temperature predicting means is lower than a predetermined third predetermined value, the temperature determining means. It is judged that the heat storage operation is necessary according to.
【００７１】蓄熱予定指令手段は、前記温度判定手段に
より蓄熱運転の必要有りと判断した場合に、前記蓄熱材
の温度が第１所定値を下回ると予測される日の前日夜間
に蓄熱運転を実施する様指令を出す。The heat storage schedule command means executes the heat storage operation on the night before the day on which the temperature of the heat storage material is predicted to fall below the first predetermined value when the temperature determination means determines that the heat storage operation is necessary. Issue a command to do so.
【００７２】蓄熱運転駆動手段は、前記蓄熱予定指令手
段からの蓄熱運転指令を受けて、前記蓄熱材の温度が予
め決められた第２所定値を上回るまで蓄熱運転を実施す
る。The heat storage operation drive means receives the heat storage operation command from the heat storage schedule command means and carries out the heat storage operation until the temperature of the heat storage material exceeds a second predetermined value.
【００７３】以上の様な操作により、蓄熱材の温度を常
に第１所定値以上に保つことにより、蓄熱運転時の凝縮
圧力の低下を防止できるため、長期休暇明けにおいても
正常な蓄熱運転を提供できるという効果があるだけでな
く、蓄熱材の水温維持のための蓄熱運転を夜間に実施す
るため安価な電力料金を提供できるという効果も併せ持
つ。By keeping the temperature of the heat storage material at the first predetermined value or more by the above operation, it is possible to prevent the decrease of the condensation pressure during the heat storage operation, so that the normal heat storage operation is provided even after a long vacation. Not only does it have the effect of being able to do so, but it also has the effect of being able to provide an inexpensive electricity charge because the heat storage operation for maintaining the water temperature of the heat storage material is performed at night.
【図１】本発明の第１の実施例による蓄熱式空気調和機
の冷凍システム図FIG. 1 is a refrigeration system diagram of a heat storage type air conditioner according to a first embodiment of the present invention.
【図２】同実施例の冷暖房装置の動作フローチャートFIG. 2 is an operation flowchart of the cooling and heating device of the same embodiment.
【図３】本発明の第２の実施例における蓄熱式空気調和
機の冷凍システム図FIG. 3 is a refrigeration system diagram of the heat storage type air conditioner in the second embodiment of the present invention.
【図４】同実施例の冷暖房装置の動作フローチャートFIG. 4 is an operation flowchart of the cooling and heating apparatus of the embodiment.
【図５】 従来例を示す蓄熱式空気調和機の冷凍シス
テム図FIG. 5 is a refrigeration system diagram of a heat storage type air conditioner showing a conventional example.
２ 圧縮機 ３ａ 第１四方弁 ３ｂ 第２四方弁 ４ 熱源側熱交換器 ５ａ 第１膨張弁 ５ｂ 第２膨張弁 ７ａ 冷媒対冷媒熱交換器の第１補助熱交換器 ７ｂ 冷媒対冷媒熱交換器の第２補助熱交換器 ８ａ 蓄熱槽の蓄熱用熱交換器 ８ｂ 蓄熱槽の放熱用熱交換器 ９ 蓄熱材 １３ａ，１３ｂ 室内ユニット １４ａ，１４ｂ 利用側熱交換器 １５ａ，１５ｂ 室内流量弁 １８ モ−ド検知手段 １９ 蓄熱材温度検知手段 ２０ 温度判定手段 ２１ 蓄熱運転駆動手段 ＳＴＲ 蓄熱槽 ＨＥＸ 冷媒対冷媒熱交換器 ＰＭ 液冷媒搬送ポンプ ＰＵ ポンプユニット ＲＶ１ 第１流量弁 ＲＶ２ 第２流量弁 ＮＶ ２方弁 2 Compressor 3a First four-way valve 3b Second four-way valve 4 Heat source side heat exchanger 5a First expansion valve 5b Second expansion valve 7a Refrigerant-refrigerant heat exchanger first auxiliary heat exchanger 7b Refrigerant-refrigerant heat exchanger Second auxiliary heat exchanger 8a Heat storage heat exchanger for heat storage tank 8b Heat dissipation heat exchanger for heat storage tank 9 Heat storage material 13a, 13b Indoor unit 14a, 14b Use side heat exchanger 15a, 15b Indoor flow valve 18 mo- De detection means 19 heat storage material temperature detection means 20 temperature determination means 21 heat storage operation driving means STR heat storage tank HEX refrigerant-refrigerant heat exchanger PM liquid refrigerant transfer pump PU pump unit RV1 first flow valve RV2 second flow valve NV 2-way valve
Claims (2)
器と、第１補助熱交換器と第２補助熱交換器とからなる
冷媒対冷媒熱交換器の第１補助熱交換器と、第１膨張
弁、かつ第２膨張弁及び蓄熱用熱交換器と放熱用熱交換
器と蓄熱材とからなる蓄熱槽の蓄熱用熱交換器とを前記
冷媒対冷媒熱交換器の第１補助熱交換器と前記第１膨張
弁と並列に接続してなる熱源側冷凍サイクルと、 冷媒搬送ポンプと第２四方弁と冷媒タンクからなるポン
プユニットと、利用側熱交換器と室内流量弁とからなる
複数の室内ユニットとを接続し、かつ第１流量弁と第２
補助熱交換器、及び第２流量弁と前記放熱用熱交換器を
並列に接続してなる利用側冷凍サイクルとからなり、 冬季暖房において、夜間蓄熱運転か、昼間暖房運転か、
あるいはシステム停止かを検知するモ−ド検知手段と、
前記蓄熱材の温度を検出する蓄熱材温度検知手段と、前
記モ−ド検知手段によりシステム停止であることを検知
し前記蓄熱材の温度が予め決められた第１所定値を下回
る場合には蓄熱運転の必要有りと判断する温度判定手段
と、前記温度判定手段によって蓄熱運転の必要有りと判
断した場合に、前記蓄熱材の温度が予め決められた第２
所定値を上回るまで蓄熱運転を実施する蓄熱運転駆動手
段とからなる第１制御装置を備えた蓄熱式空気調和機。1. A first auxiliary heat exchange of a refrigerant-refrigerant heat exchanger comprising a compressor, a first four-way valve, a heat source side heat exchanger, a first auxiliary heat exchanger and a second auxiliary heat exchanger. A first expansion valve, a second expansion valve, a second expansion valve, a heat storage heat exchanger, a heat radiation heat exchanger, and a heat storage heat exchanger of a heat storage tank comprising a heat storage material. 1 A heat source side refrigeration cycle connected in parallel with the auxiliary heat exchanger and the first expansion valve, a pump unit including a refrigerant transfer pump, a second four-way valve and a refrigerant tank, a heat exchanger on the use side and an indoor flow valve And a plurality of indoor units consisting of
It comprises an auxiliary heat exchanger and a user side refrigeration cycle in which a second flow valve and the heat radiating heat exchanger are connected in parallel. In winter heating, night heat storage operation, daytime heating operation,
Alternatively, a mode detection means for detecting whether the system is stopped,
Heat storage material temperature detection means for detecting the temperature of the heat storage material, and heat storage when the mode detection means detects that the system is stopped and the temperature of the heat storage material falls below a predetermined first predetermined value. A temperature determining unit that determines that the heat storage operation is necessary, and a temperature determination unit that determines the temperature of the heat storage material when the temperature determining unit determines that the heat storage operation is necessary.
A heat storage type air conditioner comprising a first control device comprising a heat storage operation drive means for performing heat storage operation until a predetermined value is exceeded.
器と、第１補助熱交換器と第２補助熱交換器とからなる
冷媒対冷媒熱交換器の第１補助熱交換器と、第１膨張
弁、かつ第２膨張弁及び蓄熱用熱交換器と放熱用熱交換
器と蓄熱材とからなる蓄熱槽の蓄熱用熱交換器とを前記
冷媒対冷媒熱交換器の第１補助熱交換器と前記第１膨張
弁と並列に接続してなる熱源側冷凍サイクルと、 冷媒搬送ポンプと第２四方弁と冷媒タンクからなるポン
プユニットと、利用側熱交換器と室内流量弁とからなる
複数の室内ユニットとを接続し、かつ第１流量弁と第２
補助熱交換器、及び第２流量弁と前記放熱用熱交換器を
並列に接続してなる利用側冷凍サイクルとからなり、 冬季暖房において、夜間蓄熱運転か、昼間暖房運転か、
あるいはシステム停止かを検知するモ−ド検知手段と、
翌日が運転予定であるかどうかを検知するスケジュ−リ
ング検知手段と、前記蓄熱材の温度を検出する蓄熱材温
度検知手段と、前記スケジュ−リング検知手段により検
知された運転予定日の前記蓄熱材の温度を予測する蓄熱
材温度予測手段と、前記モ−ド検知手段によりシステム
停止であることを検知し、前記蓄熱材温度予測手段によ
り予測された前記蓄熱材の温度が予め決められた第３所
定値より下回る場合には蓄熱運転の必要有りと判断する
温度判定手段と、前記温度判定手段により蓄熱運転の必
要有りと判断した場合に、前記蓄熱材温度予測手段によ
り前記蓄熱材の温度が第１所定値を下回ると予測される
日の前日夜間に蓄熱運転の指令を出す蓄熱予定指令手段
と、前記蓄熱予定指令手段による蓄熱運転の要求によ
り、前記蓄熱材温度検知手段により検知された前記蓄熱
材の温度が予め決められた第２所定値を上回るまで蓄熱
運転を実施する蓄熱運転駆動手段とからなる第２制御装
置を備えた蓄熱式空気調和機。2. A first auxiliary heat exchange of a refrigerant-refrigerant heat exchanger comprising a compressor, a first four-way valve, a heat source side heat exchanger, a first auxiliary heat exchanger and a second auxiliary heat exchanger. A first expansion valve, a second expansion valve, a second expansion valve, a heat storage heat exchanger, a heat radiation heat exchanger, and a heat storage heat exchanger of a heat storage tank comprising a heat storage material. 1 A heat source side refrigeration cycle connected in parallel with the auxiliary heat exchanger and the first expansion valve, a pump unit including a refrigerant transfer pump, a second four-way valve and a refrigerant tank, a heat exchanger on the use side and an indoor flow valve And a plurality of indoor units consisting of
It comprises an auxiliary heat exchanger and a user side refrigeration cycle in which a second flow valve and the heat radiating heat exchanger are connected in parallel. In winter heating, night heat storage operation, daytime heating operation,
Alternatively, a mode detection means for detecting whether the system is stopped,
Scheduling detection means for detecting whether or not the next day is scheduled for operation, heat storage material temperature detection means for detecting the temperature of the heat storage material, and the heat storage material for the scheduled operation date detected by the scheduling detection means Of the heat storage material temperature predicting means for predicting the temperature of the heat storage material and the mode detection means, and the temperature of the heat storage material predicted by the heat storage material temperature predicting means is determined in advance. When it is determined that the heat storage operation is necessary by the temperature determination means that determines that the heat storage operation is necessary when the temperature is lower than a predetermined value, the temperature of the heat storage material is determined by the heat storage material temperature prediction means to be the first value. 1 The heat storage schedule command means for issuing a heat storage operation command at night on the day before the day predicted to fall below a predetermined value, and the heat storage operation temperature requested by the heat storage schedule command means. Thermal storage type air conditioner having a second control device comprising a thermal storage operation driving means for implementing the thermal storage operation to above a second predetermined value the temperature predetermined for the detected the heat storage material by known means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6182278A JPH0849901A (en) | 1994-08-03 | 1994-08-03 | Heat storage air-conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6182278A JPH0849901A (en) | 1994-08-03 | 1994-08-03 | Heat storage air-conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0849901A true JPH0849901A (en) | 1996-02-20 |
Family
ID=16115480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6182278A Pending JPH0849901A (en) | 1994-08-03 | 1994-08-03 | Heat storage air-conditioner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0849901A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11159827A (en) * | 1997-08-22 | 1999-06-15 | Mitsubishi Electric Corp | Heat storage equipment add operating method thereof |
| JPWO2020240685A1 (en) * | 2019-05-28 | 2020-12-03 |
-
1994
- 1994-08-03 JP JP6182278A patent/JPH0849901A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11159827A (en) * | 1997-08-22 | 1999-06-15 | Mitsubishi Electric Corp | Heat storage equipment add operating method thereof |
| JPWO2020240685A1 (en) * | 2019-05-28 | 2020-12-03 | ||
| WO2020240685A1 (en) * | 2019-05-28 | 2020-12-03 | 三菱電機株式会社 | Control device, air environment adjustment system, air environment adjustment method, program, and recording medium |
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