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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