JP2001027450A - Storage type hot water supply apparatus - Google Patents
Storage type hot water supply apparatusInfo
- Publication number
- JP2001027450A JP2001027450A JP20047199A JP20047199A JP2001027450A JP 2001027450 A JP2001027450 A JP 2001027450A JP 20047199 A JP20047199 A JP 20047199A JP 20047199 A JP20047199 A JP 20047199A JP 2001027450 A JP2001027450 A JP 2001027450A
- Authority
- JP
- Japan
- Prior art keywords
- heat
- hot water
- compressor
- solar
- outside air
- 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
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
Landscapes
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、ヒートポンプ集熱
運転およびソーラ集熱運転を併用して貯湯槽の湯水を昇
温沸上する貯湯式給湯装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hot water storage type hot water supply apparatus for raising the temperature of hot water in a hot water storage tank by using both a heat pump heat collecting operation and a solar heat collecting operation.
【０００２】[0002]
【従来の技術】従来、例えば、特公平４−１９４５８号
公報などに記載されているように、ヒートポンプ集熱運
転およびソーラ（太陽熱）集熱運転を選択的に併用して
貯湯槽内の湯水の昇温沸上を行なうようにした貯湯式給
湯装置が知られている。2. Description of the Related Art Conventionally, as described in Japanese Patent Publication No. 19458/1992, for example, a heat pump heat collection operation and a solar (solar heat) heat collection operation are selectively used in combination to supply hot and cold water in a hot water storage tank. 2. Description of the Related Art There is known a hot water storage type hot water supply apparatus which performs heating and boiling.
【０００３】この貯湯式給湯装置では、圧縮機、凝縮器
および蒸発器を有して冷媒が循環されるヒートポンプ集
熱器を備えるとともに、蒸発器に並列に接続されるソー
ラ集熱器を備え、凝縮器において貯湯槽内の湯水と熱交
換するように構成しており、圧縮機および凝縮器に対し
て蒸発器およびソーラ集熱器のいずれか一方を切換接続
することにより、ヒートポンプ集熱運転およびソーラ集
熱運転のいずれか一方の集熱作用で貯湯槽内の湯水を昇
温沸上するようにしている。[0003] This hot water storage type hot water supply apparatus includes a heat pump heat collector having a compressor, a condenser and an evaporator, through which a refrigerant is circulated, and a solar heat collector connected in parallel to the evaporator. The condenser is configured to exchange heat with hot and cold water in a hot water storage tank, and by selectively connecting one of an evaporator and a solar collector to the compressor and the condenser, heat pump collecting operation and The water in the hot water tank is heated and boiled by one of the solar heat collecting operations.
【０００４】ところで、このような貯湯式給湯装置で
は、一般的に、ヒートポンプ集熱運転において、圧縮機
を高回転数で運転させることにより、所定のヒートポン
プ集熱能力が得られるようにし、また、ソーラ集熱運転
において、圧縮機を低回転数で運転させることにより、
消費電力を抑えてソーラ集熱運転による効率のよい昇温
沸上を可能としている。[0004] By the way, in such a hot water storage type hot water supply apparatus, generally, in the heat pump heat collecting operation, a predetermined heat pump heat collecting capacity is obtained by operating the compressor at a high rotation speed. In solar heat collection operation, by operating the compressor at low speed,
Power consumption is suppressed, and efficient heat-up and heating by solar heat collection operation is enabled.
【０００５】また、運転モードとして、ヒートポンプ集
熱運転とソーラ集熱運転とを併用する標準運転モード、
ヒートポンプ集熱運転のみを実行するヒートポンプ集熱
運転モード、ソーラ集熱運転のみを実行するソーラ集熱
運転モードを有している貯湯式給湯装置がある。[0005] A standard operation mode in which a heat pump heat collection operation and a solar heat collection operation are used in combination,
There is a hot water storage type hot water supply device having a heat pump heat collection operation mode in which only the heat pump heat collection operation is performed, and a solar heat collection operation mode in which only the solar heat collection operation is performed.
【０００６】標準運転モードでは、例えば７時から８時
までの時間帯で貯湯槽に給水される給水温度が設定温度
より低い場合にはヒートポンプ運転を実行し、大気熱を
利用して貯湯槽内の湯水を昇温沸上し、また、給水温度
が設定温度より高い場合には運転しない。さらに、例え
ば８時から１２時までをヒートポンプ集熱運転とソーラ
集熱運転とを併用する時間帯とし、この時間帯におい
て、ソーラ集熱器に設けられた集熱温度検知センサで検
知される集熱温度が設定温度より高い場合に、ソーラ集
熱運転を実行し、太陽熱を利用して貯湯槽内の湯水を昇
温沸上し、また、集熱温度が設定温度より低い場合に、
ヒートポンプ集熱運転を実行する。さらに、１２時から
は貯湯槽内の湯水が設定温度に沸き上がるまでヒートポ
ンプ集熱運転を実行する。In the standard operation mode, for example, when the temperature of the water supplied to the hot water tank is lower than the set temperature during the time period from 7:00 to 8:00, a heat pump operation is executed, and the inside of the hot water tank is utilized by utilizing atmospheric heat. If the temperature of the water supply is higher than the set temperature, the operation is not performed. Further, for example, from 8:00 to 12:00 is a time zone in which both the heat pump heat collection operation and the solar heat collection operation are performed, and in this time zone, the heat collection temperature detected by the heat collection temperature detection sensor provided in the solar heat collector. When the heat temperature is higher than the set temperature, the solar heat collection operation is executed, the temperature of the hot water in the hot water storage tank is raised using the solar heat, and when the heat collection temperature is lower than the set temperature,
Execute the heat pump heat collection operation. Further, from 12:00, the heat pump heat collecting operation is performed until the hot water in the hot water tank boils to the set temperature.
【０００７】ヒートポンプ集熱運転モードでは、例えば
７時から貯湯槽内の湯水が設定温度に沸き上がるまでヒ
ートポンプ集熱運転を実行する。In the heat pump heat collecting operation mode, the heat pump heat collecting operation is performed from 7:00 until the hot water in the hot water tank rises to the set temperature.
【０００８】ソーラ集熱運転モードでは、例えば７時か
ら１７時までの時間帯において、ソーラ集熱器の集熱温
度検知センサで検知される集熱温度が設定温度より高い
場合に、ソーラ集熱運転を実行し、太陽熱を利用して貯
湯槽内の湯水を昇温沸上し、また、集熱温度が設定温度
より低い場合に、ヒートポンプ集熱運転を停止し、集熱
温度の上昇に待機する。In the solar heat collecting operation mode, for example, when the heat collecting temperature detected by the heat collecting temperature detecting sensor of the solar heat collector is higher than the set temperature in the time period from 7:00 to 17:00, the solar heat collecting operation is performed. Executes the operation, raises the temperature of the hot water in the hot water tank using solar heat, and stops the heat pump heat collection operation when the heat collection temperature is lower than the set temperature, and waits for the heat collection temperature to rise I do.
【０００９】このような運転モードを有する貯湯式給湯
装置では、気温および水温の低い冬季において、例えば
入浴などによる湯水の使用が多くなる１７時を目安とし
てそれまでに設定温度の湯水を確保できるように構成さ
れている。In the hot water storage type hot water supply device having such an operation mode, in winter when the air temperature and the water temperature are low, for example, at 17:00 when the use of hot water for bathing or the like increases, the hot water at the set temperature can be secured by then. Is configured.
【００１０】[0010]
【発明が解決しようとする課題】ところで、日射量およ
び気温は冬、春秋、夏の順で上昇し、それに伴ってソー
ラ集熱運転での効率も上昇する。Incidentally, the amount of solar radiation and the temperature increase in the order of winter, spring and autumn, and summer, and the efficiency of the solar heat collection operation also increases accordingly.
【００１１】標準運転モードでは、ヒートポンプ集熱運
転とソーラ集熱運転とを併用するが、ソーラ集熱運転の
効率が上昇すると、ソーラ集熱運転によって貯湯槽の湯
水を十分に昇温させることができるので、圧縮機を高回
転数で運転するヒートポンプ集熱運転を併用した場合、
１７時よりも大幅に早い時刻に沸き上がってしまう。そ
のため、季節によって沸き上がり時刻にばらつきが生じ
るとともに、ソーラ集熱運転によって貯湯槽の湯水を十
分に昇温させることができる場合でもヒートポンプ運転
時に圧縮機を高回転数で運転するのでは十分な省エネル
ギ化が得られない問題がある。In the standard operation mode, the heat pump heat collecting operation and the solar heat collecting operation are used in combination. However, when the efficiency of the solar heat collecting operation increases, the temperature of the hot water in the hot water storage tank can be sufficiently raised by the solar heat collecting operation. If the heat pump heat collection operation that operates the compressor at a high speed is used together,
It will boil much earlier than 17:00. Therefore, the boiling time varies depending on the season, and even when the hot water in the hot water storage tank can be sufficiently heated by the solar heat collecting operation, it is not sufficient to operate the compressor at a high rotation speed during the heat pump operation. There is a problem that energy cannot be obtained.
【００１２】また、ソーラ集熱運転モードでは、集熱温
度が設定温度より低い場合に、ソーラ集熱運転を停止
し、集熱温度の上昇に待機するので、集熱温度が十分に
上昇しない場合には、１７時までに設定温度の湯水を確
保できない問題がある。In the solar heat collecting operation mode, when the heat collecting temperature is lower than the set temperature, the solar heat collecting operation is stopped, and the apparatus waits for the heat collecting temperature to rise. Has a problem that hot water at a set temperature cannot be secured by 17:00.
【００１３】本発明は、このような点に鑑みなされたも
ので、略一定の時刻に貯湯槽の湯水を設定温度に昇温沸
上できる貯湯式給湯装置を提供することを目的とする。SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a hot water storage type hot water supply apparatus capable of raising the temperature of hot water in a hot water tank to a set temperature at a substantially constant time.
【００１４】[0014]
【課題を解決するための手段】請求項１記載の貯湯式給
湯装置は、圧縮機、凝縮器および蒸発器が順次直列接続
されるとともに冷媒が充填された閉回路にて構成される
ヒートポンプ集熱器と、前記蒸発器に並列に接続される
ソーラ集熱器と、前記圧縮機および凝縮器に対して前記
蒸発器およびソーラ集熱器のいずれか一方を切換接続す
る切換手段と、前記凝縮器との熱交換によって昇温沸上
される湯水を貯湯する貯湯槽と、外気温度を検知する外
気温度検知手段と、ヒートポンプ集熱運転とソーラ集熱
運転とを併用する標準運転モードを有し、この標準運転
モードにおいて、前記外気温度検知手段で検知される外
気温度に基づいて、外気温度が高いほどヒートポンプ集
熱運転での前記圧縮機の回転数を低く制御する制御手段
とを具備しているものである。According to a first aspect of the present invention, there is provided a hot-water storage type hot water supply apparatus, comprising a closed circuit in which a compressor, a condenser, and an evaporator are sequentially connected in series and filled with a refrigerant. A condenser, a solar collector connected in parallel to the evaporator, switching means for switching and connecting one of the evaporator and the solar collector to the compressor and the condenser, and the condenser A hot water storage tank for storing hot and cold water heated and heated by heat exchange with the outside air temperature detecting means for detecting the outside air temperature, and a standard operation mode in which a heat pump heat collection operation and a solar heat collection operation are used in combination, In the standard operation mode, control means is provided for controlling, based on the outside air temperature detected by the outside air temperature detection means, a lower rotation speed of the compressor in the heat pump heat collecting operation as the outside air temperature becomes higher. Than it is.
【００１５】そして、ヒートポンプ集熱運転とソーラ集
熱運転とを併用する標準運転モードにおいて、外気温度
に基づいて、外気温度が高いほどヒートポンプ集熱運転
での圧縮機の回転数を低く制御することにより、季節に
よらず略一定の時刻に貯湯槽の湯水を設定温度に昇温沸
上するとともに、省エネルギ化を図る。In the standard operation mode in which the heat pump heat collecting operation and the solar heat collecting operation are used in combination, the number of rotations of the compressor in the heat pump heat collecting operation is controlled to be lower as the outside air temperature is higher based on the outside air temperature. Accordingly, the temperature of the hot water in the hot water storage tank is raised to the set temperature at a substantially constant time regardless of the season, and energy is saved.
【００１６】請求項２記載の貯湯式給湯装置は、圧縮
機、凝縮器および蒸発器が順次直列接続されるとともに
冷媒が充填された閉回路にて構成されるヒートポンプ集
熱器と、前記蒸発器に並列に接続されるソーラ集熱器
と、前記圧縮機および凝縮器に対して前記蒸発器および
ソーラ集熱器のいずれか一方を切換接続する切換手段
と、前記凝縮器との熱交換によって昇温沸上される湯水
を貯湯する貯湯槽と、外気温度を検知する外気温度検知
手段と、ヒートポンプ集熱運転とソーラ集熱運転とを併
用する標準運転モードを有し、この標準運転モードにお
いて、前記外気温度検知手段で検知される外気温度に基
づいて、外気温度が高いほどヒートポンプ集熱運転時で
の前記圧縮機の運転の高い回転数の割合を少なく制御す
る制御手段とを具備しているものである。According to a second aspect of the present invention, there is provided a hot-water storage type hot water supply apparatus comprising: a heat pump collector comprising a closed circuit in which a compressor, a condenser, and an evaporator are sequentially connected in series and filled with a refrigerant; A solar collector connected in parallel to the compressor, switching means for switching and connecting one of the evaporator and the solar collector to the compressor and the condenser, and a heat exchanger for heat exchange with the condenser. A hot water storage tank for storing hot and cold water, an outside air temperature detecting means for detecting an outside air temperature, and a standard operation mode in which a heat pump heat collection operation and a solar heat collection operation are used in combination.In this standard operation mode, Control means for controlling, based on the outside air temperature detected by the outside air temperature detection means, a lower ratio of a high rotation speed of the operation of the compressor during a heat pump heat collection operation as the outside air temperature is higher. Is shall.
【００１７】そして、ヒートポンプ集熱運転とソーラ集
熱運転とを併用する標準運転モードにおいて、外気温度
に基づいて、外気温度が高いほどヒートポンプ集熱運転
時での圧縮機の高い回転数の運転の割合を少なく制御す
ることにより、季節によらず略一定の時刻に貯湯槽の湯
水を設定温度に昇温沸上するとともに、省エネルギ化を
図る。In the standard operation mode in which the heat pump heat collection operation and the solar heat collection operation are used in combination, the higher the outside air temperature, the higher the rotational speed of the compressor during the heat pump heat collection operation based on the outside air temperature. By controlling the ratio to be small, the temperature of the hot water in the hot water storage tank is raised to the set temperature at a substantially constant time regardless of the season, and energy is saved.
【００１８】請求項３記載の貯湯式給湯装置は、圧縮
機、凝縮器および蒸発器が順次直列接続されるとともに
冷媒が充填された閉回路にて構成されるヒートポンプ集
熱器と、前記蒸発器に並列に接続されるソーラ集熱器
と、前記圧縮機および凝縮器に対して前記蒸発器および
ソーラ集熱器のいずれか一方を切換接続する切換手段
と、前記凝縮器との熱交換によって昇温沸上される湯水
を貯湯する貯湯槽と、ソーラ集熱運転を基本とするソー
ラ集熱運転モードを有し、このソーラ集熱運転モードに
おいて、日射の強い時間帯に隣接する時間帯に、通常の
ヒートポンプ集熱運転時よりも前記圧縮機を低回転数で
運転するヒートポンプ集熱運転を実行させる制御手段と
を具備しているものである。A hot water supply type hot water supply apparatus according to a third aspect of the present invention provides a heat pump heat collector comprising a closed circuit in which a compressor, a condenser and an evaporator are sequentially connected and filled with a refrigerant, and the evaporator. A solar collector connected in parallel to the compressor; switching means for switchingly connecting one of the evaporator and the solar collector to the compressor and the condenser; and a heat exchanger for heat exchange with the condenser. It has a hot water storage tank for storing hot and cold water, and a solar heat collecting operation mode based on solar heat collecting operation.In this solar heat collecting operation mode, in a time period adjacent to a time period of strong solar radiation, Control means for executing a heat pump heat collection operation for operating the compressor at a lower rotation speed than during a normal heat pump heat collection operation.
【００１９】そして、ソーラ集熱運転を基本とするソー
ラ集熱運転モードにおいて、日射の強い時間帯に隣接す
る時間帯、すなわち日射の弱い時間帯に、通常のヒート
ポンプ集熱運転時よりも圧縮機を低回転数で運転するヒ
ートポンプ集熱運転を実行させることにより、圧縮機の
消費電力をソーラ集熱運転時と同程度に抑制し、ソーラ
集熱運転による昇温沸上を補助して、季節や天候によら
ず略一定の時刻までに貯湯槽の湯水を設定温度に昇温沸
上する。In the solar heat collecting operation mode based on the solar heat collecting operation, the compressor is operated in a time period adjacent to the time period of high solar radiation, that is, in a time period of low solar radiation, more than in the normal heat pump heat collecting operation. By operating the heat pump at low speed to reduce the power consumption of the compressor to about the same level as during the solar heat collection operation. The temperature of the hot water in the hot water storage tank is raised to the set temperature by a substantially constant time regardless of the weather or the weather.
【００２０】請求項４記載の貯湯式給湯装置は、請求項
３記載の貯湯式給湯装置において、外気温度を検知する
外気温度検知手段を備え、制御手段は、前記外気温度検
知手段で検知される外気温度に基づいて、外気温度が低
くなるほどヒートポンプ集熱運転を実行する時間帯の割
合を増加させるものである。A hot water storage type hot water supply device according to a fourth aspect of the present invention is the hot water storage type hot water supply device according to the third aspect, further comprising an outside air temperature detecting means for detecting an outside air temperature, and the control means is detected by the outside air temperature detecting means. Based on the outside air temperature, the lower the outside air temperature is, the higher the ratio of the time period in which the heat pump heat collection operation is performed is increased.
【００２１】そして、外気温度に基づいて、外気温度が
低くなるほどヒートポンプ集熱運転を実行する時間帯の
割合を増加させることにより、目的の時刻までに貯湯槽
の湯水を昇温沸上する。Then, based on the outside air temperature, the proportion of the time zone in which the heat pump heat collection operation is performed is increased as the outside air temperature is lowered, so that the hot water in the hot water storage tank is heated and boiled by the target time.
【００２２】請求項５記載の貯湯式給湯装置は、圧縮
機、凝縮器および蒸発器が順次直列接続されるとともに
冷媒が充填された閉回路にて構成されるヒートポンプ集
熱器と、前記蒸発器に並列に接続されるソーラ集熱器
と、前記圧縮機および凝縮器に対して前記蒸発器および
ソーラ集熱器のいずれか一方を切換接続する切換手段
と、前記凝縮器との熱交換によって昇温沸上される湯水
を貯湯する貯湯槽と、前記ソーラ集熱器による集熱温度
を検知する集熱温度検知手段と、ソーラ集熱運転を基本
とするソーラ集熱運転モードを有し、このソーラ集熱運
転モードにおいて、前記集熱温度検知手段で検知される
集熱温度が設定温度より高い場合にはソーラ集熱運転を
実行させるとともに、設定温度より低い場合には通常の
ヒートポンプ集熱運転時よりも前記圧縮機を低回転数で
運転するヒートポンプ集熱運転を実行させる制御手段と
を具備しているものである。According to a fifth aspect of the present invention, there is provided a hot-water storage type hot water supply apparatus comprising: a heat pump collector including a compressor, a condenser, and an evaporator, which are sequentially connected in series, and a closed circuit filled with a refrigerant; A solar collector connected in parallel to the compressor; switching means for switchingly connecting one of the evaporator and the solar collector to the compressor and the condenser; and a heat exchanger for heat exchange with the condenser. A hot water storage tank for storing hot and cold water to be heated, a heat collecting temperature detecting means for detecting a heat collecting temperature by the solar heat collector, and a solar heat collecting operation mode based on a solar heat collecting operation. In the solar heat collecting operation mode, the solar heat collecting operation is executed when the heat collecting temperature detected by the heat collecting temperature detecting means is higher than a set temperature, and the normal heat pump heat collecting operation is performed when the heat collecting temperature is lower than the set temperature. Time The remote said compressor in which and a control means for executing the heat pump heat collecting operation is operated at low speed.
【００２３】そして、ソーラ集熱運転を基本とするソー
ラ集熱運転モードにおいて、集熱温度検知手段で検知さ
れる集熱温度が設定温度より高い場合にはソーラ集熱運
転を実行させるとともに、設定温度より低い場合には通
常のヒートポンプ集熱運転時よりも圧縮機を低回転数で
運転するヒートポンプ集熱運転を実行させることによ
り、圧縮機の消費電力をソーラ集熱運転時と同程度に抑
制し、ソーラ集熱運転による昇温沸上を補助して、季節
や天候によらず略一定の時刻までに貯湯槽の湯水を設定
温度に昇温沸上する。In the solar heat collecting operation mode based on the solar heat collecting operation, when the heat collecting temperature detected by the heat collecting temperature detecting means is higher than the set temperature, the solar heat collecting operation is executed and the setting is performed. When the temperature is lower than the temperature, the power consumption of the compressor is suppressed to the same level as during the solar heat collection operation by executing the heat pump heat collection operation that operates the compressor at a lower rotation speed than during the normal heat pump heat collection operation Then, the heating and boiling by the solar heat collecting operation is assisted, and the temperature of the hot water in the hot water storage tank is raised to the set temperature by a substantially constant time regardless of the season or weather.
【００２４】[0024]
【発明の実施の形態】以下、本発明の一実施の形態を図
面を参照して説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings.
【００２５】図１は貯湯式給湯装置の構成図、図２は貯
湯式給湯装置の各運転モードでの運転状態を示すタイム
チャートである。FIG. 1 is a block diagram of a hot water supply type hot water supply apparatus, and FIG. 2 is a time chart showing an operation state of each operation mode of the hot water supply type hot water supply apparatus.
【００２６】図１において、11は貯湯槽で、先止押上式
の給湯方式を採用しており、貯湯槽11の下部に給水管路
に連なる給水管12が接続されているとともに、上部に給
湯管路に連なる給湯管13が接続されている。給水管路
は、水道管に対して止水弁14および図示しないストレー
ナなどを介して接続され、また、給湯管路は、止水弁15
を介して、例えば風呂場、台所および洗面所などに設置
される給湯給水栓などに接続される。In FIG. 1, reference numeral 11 denotes a hot water storage tank, which adopts a hot water supply method of a first-stop push-up type. A water supply pipe 12 connected to a water supply pipe is connected to a lower part of the hot water storage tank 11, and a hot water supply is provided at an upper part. A hot water supply pipe 13 connected to the pipeline is connected. The water supply pipe is connected to the water pipe via a water stop valve 14 and a strainer (not shown), and the hot water supply pipe is connected to a water stop valve 15.
Is connected to a hot water supply tap installed in, for example, a bathroom, a kitchen, and a washroom.
【００２７】貯湯槽11の下部には排水弁16を有する排水
管17が接続され、給湯管13には沸上時の水の膨脹分を逃
すための図示しない圧力逃し弁が接続されている。A drain pipe 17 having a drain valve 16 is connected to a lower part of the hot water storage tank 11, and a pressure relief valve (not shown) for releasing the expansion of water when boiling is connected to the hot water supply pipe 13.
【００２８】貯湯槽11の下部近傍には循環配管18が接続
され、この循環配管18には貯湯槽11内の湯水を強制的に
循環させる循環ポンプ19が配設されている。A circulation pipe 18 is connected to the vicinity of the lower part of the hot water storage tank 11, and a circulation pump 19 for forcibly circulating the hot water in the hot water storage tank 11 is provided in the circulation pipe 18.
【００２９】また、21はヒートポンプ集熱器で、圧縮機
22、凝縮器23、膨張弁24、蒸発器（エバポレータ）25お
よび気液分離器26を配管27，28，29，30を介して順次直
列接続した閉回路にて構成され、この閉回路に冷媒が封
入されている。圧縮機22は例えばインバータ制御によっ
て回転数を低回転数から高回転数まで可変できるモータ
を備えている。凝縮器23は循環配管18に接続され、循環
配管18と凝縮器23とで熱交換器31が構成されている。蒸
発器25は外気を送る送風ファン32およびこの送風ファン
32を回転させる送風モータ33を有している。Reference numeral 21 denotes a heat pump collector, which is a compressor.
22, a condenser 23, an expansion valve 24, an evaporator (evaporator) 25, and a gas-liquid separator 26 are sequentially connected in series via pipes 27, 28, 29, and 30 to form a closed circuit. Is enclosed. The compressor 22 is provided with a motor that can change the rotation speed from a low rotation speed to a high rotation speed by, for example, inverter control. The condenser 23 is connected to the circulation pipe 18, and the circulation pipe 18 and the condenser 23 constitute a heat exchanger 31. The evaporator 25 is a blower fan 32 for sending outside air and this blower fan.
It has a blower motor 33 for rotating 32.
【００３０】また、34はソーラ集熱器で、配管28，29に
それぞれ接続される配管35，36を介して蒸発器25に並列
に接続されている。ソーラ集熱器34は、例えば屋根の上
などの日照条件の良好な場所に設置される。A solar collector 34 is connected in parallel to the evaporator 25 via pipes 35 and 36 connected to pipes 28 and 29, respectively. The solar collector 34 is installed in a place with good sunlight conditions, for example, on a roof.
【００３１】配管28と配管35とには、圧縮機22および凝
縮器23に対して蒸発器25またはソーラ集熱器34のいずれ
か一方を切換接続する切換手段としての電磁弁37，38が
それぞれ配設されている。すなわち、電磁弁37を開くと
ともに電磁弁38を閉じることにより、冷媒が蒸発器25に
流れてヒートポンプ集熱運転が実行され、一方、電磁弁
37を閉じるとともに電磁弁38を開くことにより、冷媒が
ソーラ集熱器34に流れてソーラ集熱運転が実行される。The piping 28 and the piping 35 are provided with solenoid valves 37 and 38 as switching means for switching and connecting either the evaporator 25 or the solar collector 34 to the compressor 22 and the condenser 23, respectively. It is arranged. That is, by opening the solenoid valve 37 and closing the solenoid valve 38, the refrigerant flows to the evaporator 25 and the heat pump heat collection operation is performed.
By closing 37 and opening the solenoid valve 38, the refrigerant flows to the solar heat collector 34 and the solar heat collecting operation is executed.
【００３２】また、貯湯槽11の胴部外壁には、貯湯槽11
内の湯水の湯温および残湯量を検知する複数の湯水温度
検知センサ41が配設されているとともに、貯湯槽11内に
導かれる給水温度を検知する給水温度検知センサ42が配
設されている。また、ソーラ集熱器34には、集熱温度を
検知する集熱温度検知手段としての集熱温度検知センサ
43が配設されている。さらに、外気温度を検知する外気
温度検知手段としての外気温度検知センサ44を備えてい
る。Further, on the outer wall of the trunk of the hot water storage tank 11,
A plurality of hot water temperature detecting sensors 41 for detecting the hot water temperature and the remaining hot water amount in the hot water are provided, and a hot water temperature detecting sensor 42 for detecting the hot water temperature guided into the hot water storage tank 11 is provided. . The solar heat collector 34 has a heat collecting temperature detection sensor as a heat collecting temperature detecting means for detecting a heat collecting temperature.
43 are arranged. Further, an outside air temperature detection sensor 44 is provided as outside air temperature detection means for detecting the outside air temperature.
【００３３】また、51は制御手段としての制御装置で、
この制御装置51には複数の湯水温度検知センサ41、給水
温度検知センサ42、集熱温度検知センサ43、外気温度検
知センサ44などから検知信号が入力され、制御装置51に
より循環ポンプ19、圧縮機22、送風モータ33、電磁弁3
7，38などが駆動制御される。Reference numeral 51 denotes a control device as control means.
Detection signals from a plurality of hot and cold water temperature detection sensors 41, a supply water temperature detection sensor 42, a heat collection temperature detection sensor 43, an outside air temperature detection sensor 44, and the like are input to the control device 51, and the circulation pump 19, the compressor 22, blower motor 33, solenoid valve 3
7, 38, etc. are drive-controlled.
【００３４】そして、ソーラ集熱運転について説明する
と、電磁弁37が閉じられるとともに電磁弁38が開かれ、
圧縮機22が駆動される。これにより、図１に実線矢印で
示すように、圧縮機22、凝縮器23、ソーラ集熱器34、気
液分離器26の順に冷媒が流れる。Next, the solar heat collecting operation will be described. The electromagnetic valve 37 is closed and the electromagnetic valve 38 is opened.
The compressor 22 is driven. Thereby, the refrigerant flows in the order of the compressor 22, the condenser 23, the solar collector 34, and the gas-liquid separator 26 as shown by the solid arrow in FIG.
【００３５】ソーラ集熱器34で太陽熱により気化された
冷媒が凝縮器23に送られて液化され、冷媒の熱が凝縮器
23から循環配管18内の湯水に与えられて熱交換される。The refrigerant vaporized by the solar heat in the solar collector 34 is sent to the condenser 23 and liquefied, and the heat of the refrigerant is
The heat is given to the hot water in the circulation pipe 18 from the heat exchanger 23 and heat exchange is performed.
【００３６】このとき、循環ポンプ19が駆動され、貯湯
槽11の下部側の湯水（水）が循環配管18を通じて貯湯槽
11内に再び戻るように強制循環され、貯湯槽11内の湯水
の全量を対象に沸き上げられる。At this time, the circulation pump 19 is driven, and hot water (water) on the lower side of the hot water storage tank 11 is passed through the circulation pipe 18.
It is forcibly circulated to return to the inside of the hot water tank 11 again, and the entire amount of hot water in the hot water storage tank 11 is boiled.
【００３７】また、ヒートポンプ集熱運転について説明
すると、電磁弁37が開かれるとともに電磁弁38が閉じら
れ、圧縮機22および送風ファン32が駆動される。これに
より、図１に破線矢印で示すように、圧縮機22、凝縮器
23、膨張弁24、蒸発器25、気液分離器26の順に冷媒が流
れる。In the heat pump heat collecting operation, the solenoid valve 37 is opened and the solenoid valve 38 is closed, and the compressor 22 and the blower fan 32 are driven. As a result, the compressor 22, the condenser,
The refrigerant flows in the order of 23, expansion valve 24, evaporator 25, and gas-liquid separator 26.
【００３８】蒸発器25により外気との間で熱交換されて
気化された冷媒が圧縮機22で圧縮されて凝縮器23で液化
され、冷媒の熱が凝縮器23から循環配管18内の湯水に与
えられて熱交換される。The refrigerant, which has undergone heat exchange with the outside air by the evaporator 25 and is vaporized, is compressed by the compressor 22 and liquefied by the condenser 23, and the heat of the refrigerant is transferred from the condenser 23 to the hot and cold water in the circulation pipe 18. Given and heat exchanged.
【００３９】このとき、循環ポンプ19が駆動され、貯湯
槽11の下部側の湯水（水）が循環配管18を通じて貯湯槽
11内に再び戻るように強制循環され、貯湯槽11内の湯水
の全量を対象に沸き上げられる。At this time, the circulation pump 19 is driven, and hot water (water) on the lower side of the hot water tank 11 is
It is forcibly circulated to return to the inside of the hot water tank 11 again, and the entire amount of hot water in the hot water storage tank 11 is boiled.
【００４０】次に、図２に貯湯式給湯装置の各運転モー
ドでの運転状態のタイムチャートを示し、制御装置51
は、運転モードとして、標準運転モード、ソーラ集熱運
転モードおよびヒートポンプ集熱運転モードを有し、い
ずれかの運転モードによって貯湯槽11の湯水の昇温沸上
のための運転が行なわれる。Next, FIG. 2 shows a time chart of the operating state of the hot water supply type hot water supply device in each operation mode.
Has a standard operation mode, a solar heat collection operation mode, and a heat pump heat collection operation mode as operation modes, and an operation for raising the temperature of hot water in the hot water storage tank 11 is performed in any of the operation modes.
【００４１】このとき、制御装置51は、標準運転モード
において、外気温度検知センサ44で検知される外気温度
に基づいて、外気温度が高いほどヒートポンプ集熱運転
での圧縮機22の高い回転数の運転の割合を少なく制御す
る機能、ソーラ集熱運転モードにおいて、日射の強い時
間帯に隣接する時間帯に、通常のヒートポンプ集熱運転
時よりも圧縮機22を低回転数で運転するヒートポンプ集
熱運転を実行させる機能、外気温度検知センサ44で検知
される外気温度に基づいて、外気温度が低くなるほどヒ
ートポンプ集熱運転を実行する時間帯の割合を増加させ
る機能を有している。At this time, in the standard operation mode, based on the outside air temperature detected by the outside air temperature detection sensor 44, the controller 51 sets the higher the rotation speed of the compressor 22 in the heat pump heat collection operation as the higher the outside air temperature. A function to control the operation rate less, in the solar heat collection operation mode, heat pump heat collection, in which the compressor 22 is operated at a lower rotation speed than in the normal heat pump heat collection operation in the time period adjacent to the time period when the solar radiation is strong Based on the outside air temperature detected by the outside air temperature detection sensor 44, a function to execute the operation and a function to increase the ratio of the time zone in which the heat pump heat collection operation is executed as the outside air temperature becomes lower are provided.
【００４２】なお、ヒートポンプ集熱運転時での圧縮機
22の高い回転数の運転の割合とは、圧縮機を高回転数ま
たは低回転数で運転するヒートポンプ集熱運転を実行す
る時間帯や、圧縮機22を高回転数または低回転数で運転
するヒートポンプ集熱運転を実行する運転時間を制限す
る場合も含まれる。The compressor during the heat pump heat collecting operation
The high rotation speed ratio of 22 means that the compressor is operated at a high rotation speed or a low rotation speed, a time zone during which a heat pump heat collection operation is performed, or the compressor 22 is operated at a high rotation speed or a low rotation speed. The case where the operation time for executing the heat pump heat collection operation is limited is also included.
【００４３】標準運転モードでは、７時に運転を開始す
るが、この運転開始時に外気温度検知センサ44で検知さ
れる外気温度に基づいて、冬モード、春秋モードおよび
夏モードの３つのモードのうちのいずれかが選定され
る。例えば、外気温度が１０℃以下は冬モード、１０℃
を越えて２２℃未満は春秋モード、２２℃以上は夏モー
ドというように選定される。In the standard operation mode, the operation is started at 7:00. At the start of the operation, based on the outside air temperature detected by the outside air temperature detection sensor 44, one of three modes of a winter mode, a spring-autumn mode and a summer mode is set. Either is selected. For example, if the outside air temperature is 10 ° C or less, the winter mode is 10 ° C.
The spring mode is selected when the temperature exceeds 22 ° C and below 22 ° C, and the summer mode is selected when the temperature exceeds 22 ° C.
【００４４】標準運転モードの冬モードでは、７時から
８時までの時間帯において、圧縮機22を高回転数（例え
ば６６Ｈｚ）で運転するヒートポンプ集熱運転を実行す
る。８時から１２時までの時間帯において、ソーラ集熱
器34の集熱温度検知センサ43により検知される集熱温度
が設定温度よりも高い場合にはソーラ集熱運転を実行
し、低い場合には圧縮機22を高回転数（例えば６６Ｈ
ｚ）で運転するヒートポンプ集熱運転を実行する。１２
時以降の時間帯において、設定温度に沸き上がるまで圧
縮機22を高回転数（例えば６６Ｈｚ）で運転するヒート
ポンプ集熱運転を実行する。In the winter mode of the standard operation mode, a heat pump heat collection operation for operating the compressor 22 at a high rotation speed (for example, 66 Hz) is executed in the time period from 7:00 to 8:00. In the time period from 8:00 to 12:00, when the heat collection temperature detected by the heat collection temperature detection sensor 43 of the solar heat collector 34 is higher than the set temperature, the solar heat collection operation is performed. Changes the compressor 22 to a high rotational speed (for example, 66H
The heat pump heat collection operation operated in z) is executed. 12
In a time zone after the hour, the heat pump heat collection operation is performed in which the compressor 22 is operated at a high rotation speed (for example, 66 Hz) until the temperature reaches the set temperature.
【００４５】標準運転モードの春秋モードでは、７時か
ら８時までの時間帯において、圧縮機22を低回転数（例
えば２８Ｈｚ）で運転するヒートポンプ集熱運転を実行
する。８時から１２時までの時間帯において、ソーラ集
熱器34の集熱温度検知センサ43により検知される集熱温
度が設定温度よりも高い場合にはソーラ集熱運転を実行
し、低い場合には圧縮機22を高回転数（例えば６６Ｈ
ｚ）で運転するヒートポンプ集熱運転を実行する。１２
時以降の時間帯において、設定温度に沸き上がるまで圧
縮機22を高回転数（例えば６６Ｈｚ）で運転するヒート
ポンプ集熱運転を実行する。In the spring / autumn mode of the standard operation mode, a heat pump heat collection operation in which the compressor 22 is operated at a low rotation speed (for example, 28 Hz) is executed in the time period from 7:00 to 8:00. In the time period from 8:00 to 12:00, when the heat collection temperature detected by the heat collection temperature detection sensor 43 of the solar heat collector 34 is higher than the set temperature, the solar heat collection operation is performed. Changes the compressor 22 to a high rotational speed (for example, 66H
The heat pump heat collection operation operated in z) is executed. 12
In a time zone after the hour, the heat pump heat collection operation is performed in which the compressor 22 is operated at a high rotation speed (for example, 66 Hz) until the temperature reaches the set temperature.
【００４６】標準運転モードの夏モードでは、７時から
８時までの時間帯において、圧縮機22を低回転数（例え
ば２８Ｈｚ）で運転するヒートポンプ集熱運転を実行す
る。８時から１２時までの時間帯において、ソーラ集熱
器34の集熱温度検知センサ43により検知される集熱温度
が設定温度よりも高い場合にはソーラ集熱運転を実行
し、低い場合には圧縮機22を低回転数（例えば２８Ｈ
ｚ）で運転するヒートポンプ集熱運転を実行する。１２
時以降の時間帯において、設定温度に沸き上がるまで圧
縮機22を低回転数（例えば２８Ｈｚ）で運転するヒート
ポンプ集熱運転を実行する。In the summer mode of the standard operation mode, a heat pump heat collection operation in which the compressor 22 is operated at a low rotation speed (for example, 28 Hz) is executed in the time period from 7:00 to 8:00. In the time period from 8:00 to 12:00, when the heat collection temperature detected by the heat collection temperature detection sensor 43 of the solar heat collector 34 is higher than the set temperature, the solar heat collection operation is performed. Operates the compressor 22 at a low rotational speed (for example, 28H
The heat pump heat collection operation operated in z) is executed. 12
In the time zone after the hour, the heat pump heat collection operation of operating the compressor 22 at a low rotation speed (for example, 28 Hz) until the temperature reaches the set temperature is executed.
【００４７】また、ソーラ集熱運転モードでは、７時に
運転を開始するが、この運転開始時に外気温度検知セン
サ44で検知される外気温度に基づいて、冬モード、春秋
と夏モードの２つのモードのうちのいずれかが選定され
る。たとえば、外気温度が１０℃以下は冬モード、１０
℃を越えていれば春秋と夏モードというように選定され
る。In the solar heat collecting operation mode, the operation is started at 7:00. At the start of the operation, two modes of a winter mode, a spring-autumn mode and a summer mode are performed based on the outside air temperature detected by the outside air temperature sensor 44. Is selected. For example, if the outside air temperature is 10 ° C.
If it exceeds ℃, it will be selected as spring / autumn and summer mode.
【００４８】ソーラ集熱運転モードの冬モードでは、７
時から９時での時間帯において、圧縮機22を低回転数
（例えば２８Ｈｚ）で運転するヒートポンプ集熱運転を
実行する。９時から１５時までの時間帯において、ソー
ラ集熱器34の集熱温度検知センサ43により検知される集
熱温度が設定温度より高い場合にはソーラ集熱運転を実
行し、集熱温度が設定温度よりも低い場合にはソーラ集
熱運転を停止する。１５時から１７時までの時間帯にお
いて、圧縮機22を低回転数（例えば２８Ｈｚ）で運転す
るヒートポンプ集熱運転を実行する。１７時になれば、
ソーラ集熱運転を停止する。In the winter mode of the solar heat collecting operation mode, 7
In the time zone from time to 9 o'clock, the heat pump heat collection operation for operating the compressor 22 at a low rotation speed (for example, 28 Hz) is executed. In the time period from 9:00 to 15:00, when the heat collection temperature detected by the heat collection temperature detection sensor 43 of the solar heat collector 34 is higher than the set temperature, the solar heat collection operation is performed, and the heat collection temperature is reduced. If the temperature is lower than the set temperature, the solar heat collecting operation is stopped. In the time period from 15:00 to 17:00, a heat pump heat collection operation for operating the compressor 22 at a low rotation speed (for example, 28 Hz) is executed. At 17:00,
Stop solar heat collection operation.
【００４９】ソーラ集熱運転モードの春秋と夏モードで
は、７時から８時での時間帯において、圧縮機22を低回
転数（例えば２８Ｈｚ）で運転するヒートポンプ集熱運
転を実行する。８時から１５時までの時間帯において、
ソーラ集熱器34の集熱温度検知センサ43により検知され
る集熱温度が設定温度より高い場合にはソーラ集熱運転
を実行し、集熱温度が設定温度よりも低い場合にはソー
ラ集熱運転を停止する。１５時から１７時までの時間帯
において、圧縮機22を低回転数（例えば２８Ｈｚ）で運
転するヒートポンプ集熱運転を実行する。１７時になれ
ば、ソーラ集熱運転を停止する。In the spring / autumn and summer modes of the solar heat collection operation mode, the heat pump heat collection operation is performed in which the compressor 22 is operated at a low rotation speed (for example, 28 Hz) during the time period from 7:00 to 8:00. In the time zone from 8:00 to 15:00,
When the heat collection temperature detected by the heat collection temperature detection sensor 43 of the solar heat collector 34 is higher than the set temperature, the solar heat collection operation is performed. When the heat collection temperature is lower than the set temperature, the solar heat collection operation is performed. Stop operation. In the time period from 15:00 to 17:00, a heat pump heat collection operation for operating the compressor 22 at a low rotation speed (for example, 28 Hz) is executed. At 17:00, the solar heat collection operation is stopped.
【００５０】また、ヒートポンプ集熱運転モードでは、
７時から設定温度に沸き上がるまで、圧縮機22を高回転
数（例えば６６Ｈｚ）で運転するヒートポンプ集熱運転
を実行する。In the heat pump heat collecting operation mode,
From 7 o'clock, a heat pump heat collection operation is performed in which the compressor 22 is operated at a high rotation speed (for example, 66 Hz) until the temperature reaches the set temperature.
【００５１】このように、ソーラ集熱運転とヒートポン
プ集熱運転とを併用する標準運転モードにおいて、外気
温度に基づいて、外気温度が高いほどヒートポンプ集熱
運転での圧縮機22の高い回転数（例えば６６Ｈｚ）の運
転の割合を少なく制御するので、季節によらず略一定の
時刻に貯湯槽11の湯水を設定温度に昇温沸上できるとと
もに、省エネルギ化を図ることができる。As described above, in the standard operation mode in which the solar heat collecting operation and the heat pump heat collecting operation are used in combination, the higher the outside air temperature, the higher the rotation speed of the compressor 22 in the heat pump heat collecting operation (based on the outside air temperature). Since the rate of operation at 66 Hz, for example, is controlled to be small, the temperature of the hot water in the hot water storage tank 11 can be raised to the set temperature at a substantially constant time regardless of the season, and energy can be saved.
【００５２】また、ソーラ集熱運転を基本とするソーラ
集熱運転モードにおいて、日射の強い時間帯に隣接する
前後の時間帯、すなわち日射の弱い時間帯に、通常のヒ
ートポンプ集熱運転時（圧縮機22を高回転数（例えば６
６Ｈｚ）で運転する時）よりも圧縮機22を低回転数（例
えば２８Ｈｚ）で運転するヒートポンプ集熱運転を実行
させるので、圧縮機22の消費電力をソーラ集熱運転時と
同程度に抑制し、ソーラ集熱運転による昇温沸上を補助
して、季節や天候によらず略一定の時刻までに貯湯槽11
の湯水を設定温度に昇温沸上できる。In the solar heat collecting operation mode based on the solar heat collecting operation, the normal heat pump heat collecting operation (compression) is performed before and after the time adjacent to the time of strong solar radiation, that is, during the time of low solar radiation. Machine 22 at a high rotational speed (for example, 6
6)), the heat pump heat collection operation in which the compressor 22 is operated at a lower rotation speed (for example, 28 Hz) is performed, so that the power consumption of the compressor 22 is suppressed to the same extent as in the solar heat collection operation. , Assists in heating and boiling by the solar heat collecting operation, and allows the hot water storage tank 11 to reach a substantially constant time regardless of the season or weather.
Can be heated to the set temperature.
【００５３】このとき、外気温度に基づいて、外気温度
が低くなるほどヒートポンプ集熱運転を実行する時間帯
の割合を増加させることにより、目的の時刻までに貯湯
槽11の湯水を昇温沸上できる。At this time, the temperature of the hot water in the hot water storage tank 11 can be raised to the desired temperature by increasing the ratio of the time zone in which the heat pump heat collection operation is performed as the outside air temperature becomes lower based on the outside air temperature. .
【００５４】なお、ヒートポンプ集熱運転とソーラ集熱
運転とを併用する標準運転モードにおいて、外気温度に
基づいて、外気温度が高いほどヒートポンプ集熱運転時
での圧縮機22の回転数を順次下げていくように制御して
もよく、この場合でも、季節によらず略一定の時刻に貯
湯槽11の湯水を設定温度に昇温沸上できるとともに、省
エネルギ化を図ることができる。In the standard operation mode in which the heat pump heat collection operation and the solar heat collection operation are used in combination, based on the outside air temperature, the higher the outside air temperature, the lower the rotation speed of the compressor 22 during the heat pump heat collection operation is. The temperature of the hot water in the hot water storage tank 11 can be raised to the set temperature at a substantially constant time regardless of the season, and energy can be saved.
【００５５】また、ヒートポンプ集熱運転時の圧縮機22
の回転数は、高回転数と低回転数とに限らず、高回転数
と低回転数との中間となる中回転数を設定してもよく、
季節モードに応じて可変設定することにより、季節や天
候に適切に対応できる。Further, the compressor 22 during the heat pump heat collecting operation is used.
The rotation speed is not limited to the high rotation speed and the low rotation speed, and may be set to a middle rotation speed that is intermediate between the high rotation speed and the low rotation speed.
By variably setting according to the season mode, it is possible to appropriately respond to the season and weather.
【００５６】また、季節モードの選定は、運転開始時に
限らず、運転中で選定してもよい。The selection of the season mode is not limited to the start of the operation, but may be the selection during the operation.
【００５７】また、図３に貯湯式給湯装置のソーラ集熱
運転モードでの運転状態の変形例のタイムチャートを示
す。FIG. 3 is a time chart showing a modification of the operating state of the hot water supply type hot water supply apparatus in the solar heat collecting operation mode.
【００５８】制御装置51は、ソーラ集熱運転を基本とす
るソーラ集熱運転モードにおいて、集熱温度検知センサ
43で検知される集熱温度が設定温度より高い場合にはソ
ーラ集熱運転を実行させるとともに、設定温度より低い
場合には通常のヒートポンプ集熱運転時よりも圧縮機22
を低回転数で運転するヒートポンプ集熱運転を実行させ
る機能を有している。In the solar heat collecting operation mode based on the solar heat collecting operation, the control device 51 controls the heat collecting temperature detecting sensor.
When the heat collection temperature detected at 43 is higher than the set temperature, the solar heat collection operation is executed, and when the heat collection temperature is lower than the set temperature, the compressor 22 is operated at a higher speed than during the normal heat pump heat collection operation.
Has a function of executing a heat pump heat collection operation for operating the motor at a low rotation speed.
【００５９】ソーラ集熱運転モードでは、沸増し設定な
しと、沸増し設定ありとのいずれかが設定される。In the solar heat collecting operation mode, either one of the setting of no boiling and the setting of the boiling is set.
【００６０】ソーラ集熱運転モードの沸増し設定なしの
場合には、７時から１７時までの時間帯において、ソー
ラ集熱器34の集熱温度検知センサ43により検知される集
熱温度が設定温度より高い場合にはソーラ集熱運転を実
行し、集熱温度が設定温度よりも低い場合には圧縮機22
を低回転数（例えば２８Ｈｚ）で運転するヒートポンプ
集熱運転を実行する。このようなソーラ集熱運転かヒー
トポンプ集熱運転を繰り返して１７時になるまでに設定
温度に沸き上がるか、設定温度まで沸き上がらなくても
１７時になれば運転を停止する。In the case where the solar heat collecting operation mode is not set to increase the boiling temperature, the heat collecting temperature detected by the heat collecting temperature detecting sensor 43 of the solar heat collector 34 is set in the time period from 7:00 to 17:00. When the temperature is higher than the temperature, the solar heat collecting operation is executed.
Is operated at a low rotation speed (for example, 28 Hz). Such a solar heat collecting operation or a heat pump heat collecting operation is repeated, and the temperature rises to the set temperature by 17:00, or the operation is stopped at 17:00 without boiling up to the set temperature.
【００６１】ソーラ集熱運転モードの沸増し設定ありの
場合には、７時から１７時までの時間帯において、ソー
ラ集熱器34の集熱温度検知センサ43により検知される集
熱温度が設定温度より高い場合にはソーラ集熱運転を実
行し、集熱温度が設定温度よりも低い場合には圧縮機22
を低回転数（例えば２８Ｈｚ）で運転するヒートポンプ
集熱運転を実行する。このようなソーラ集熱運転かヒー
トポンプ集熱運転を繰り返して１７時になるまでに設定
温度に沸き上がれば運転を停止し、１７時までに沸き上
がらなければ１７時から設定温度に沸き上がるまで圧縮
機22を高回転数（例えば６６Ｈｚ）で運転するヒートポ
ンプ集熱運転を実行する。In the solar heat collecting operation mode, when there is a setting to increase the heat collection, the heat collecting temperature detected by the heat collecting temperature detecting sensor 43 of the solar heat collector 34 is set in the time period from 7:00 to 17:00. When the temperature is higher than the temperature, the solar heat collecting operation is executed.
Is operated at a low rotation speed (for example, 28 Hz). If such a solar heat collecting operation or a heat pump heat collecting operation is repeated and the temperature rises to the set temperature by 17:00, the operation is stopped. If the temperature does not rise by 17:00, the compressor 22 is heated from 17:00 to the set temperature. Is performed at a high rotation speed (for example, 66 Hz).
【００６２】このように、ソーラ集熱運転を基本とする
ソーラ集熱運転モードにおいて、集熱温度検知センサ43
で検知される集熱温度が設定温度より高い場合にはソー
ラ集熱運転を実行させるとともに、設定温度より低い場
合には通常のヒートポンプ集熱運転時（圧縮機22を高回
転数（例えば６６Ｈｚ）で運転する時）よりも圧縮機22
を低回転数（例えば２８Ｈｚ）で運転するヒートポンプ
集熱運転を実行させるので、圧縮機22の消費電力をソー
ラ集熱運転時と同程度に抑制し、ソーラ集熱運転による
昇温沸上を補助して、季節や天候によらず略一定の時刻
までに貯湯槽11の湯水を設定温度に昇温沸上できる。As described above, in the solar heat collecting operation mode based on the solar heat collecting operation, the heat collecting temperature detecting sensor 43
When the heat collection temperature detected in step (1) is higher than the set temperature, the solar heat collection operation is executed. When the heat collection temperature is lower than the set temperature, a normal heat pump heat collection operation is performed (when the compressor 22 is operated at a high rotation speed (for example, 66 Hz)). Compressor 22)
Is performed at a low rotation speed (for example, 28 Hz), the power consumption of the compressor 22 is suppressed to approximately the same level as in the solar heat collecting operation, and the temperature rise boiling by the solar heat collecting operation is assisted. Then, the temperature of the hot water in the hot water storage tank 11 can be raised to the set temperature by substantially constant time regardless of the season or weather.
【００６３】[0063]
【発明の効果】請求項１記載の貯湯式給湯装置によれ
ば、ヒートポンプ集熱運転とソーラ集熱運転とを併用す
る標準運転モードにおいて、外気温度に基づいて、外気
温度が高いほどヒートポンプ集熱運転での圧縮機の回転
数を低く制御するので、季節によらず略一定の時刻に貯
湯槽の湯水を設定温度に昇温沸上できるとともに、省エ
ネルギ化を図ることができる。According to the first aspect of the present invention, in the standard operation mode in which the heat pump heat collecting operation and the solar heat collecting operation are both used, the heat pump heat collecting becomes higher as the outside air temperature becomes higher based on the outside air temperature. Since the number of rotations of the compressor during operation is controlled to be low, the temperature of the hot water in the hot water tank can be raised to the set temperature at a substantially constant time regardless of the season, and energy can be saved.
【００６４】請求項２記載の貯湯式給湯装置によれば、
ヒートポンプ集熱運転とソーラ集熱運転とを併用する標
準運転モードにおいて、外気温度に基づいて、外気温度
が高いほどヒートポンプ集熱運転時での圧縮機の高い回
転数の運転の割合を少なく制御するので、季節によらず
略一定の時刻に貯湯槽の湯水を設定温度に昇温沸上でき
るとともに、省エネルギ化を図ることができる。According to the hot water storage type hot water supply device of the second aspect,
In the standard operation mode in which the heat pump heat collection operation and the solar heat collection operation are used in combination, based on the outside air temperature, the higher the outside air temperature, the smaller the ratio of the operation of the compressor with the higher rotation speed during the heat pump heat collection operation is controlled. Therefore, the temperature of the hot water in the hot water storage tank can be raised to the set temperature at a substantially constant time regardless of the season, and energy can be saved.
【００６５】請求項３記載の貯湯式給湯装置によれば、
ソーラ集熱運転を基本とするソーラ集熱運転モードにお
いて、日射の強い時間帯に隣接する時間帯、すなわち日
射の弱い時間帯に、通常のヒートポンプ集熱運転時より
も圧縮機を低回転数で運転するヒートポンプ集熱運転を
実行させるので、圧縮機の消費電力をソーラ集熱運転時
と同程度に抑制し、ソーラ集熱運転による昇温沸上を補
助して、季節や天候によらず略一定の時刻までに貯湯槽
の湯水を設定温度に昇温沸上できる。According to the hot water storage type hot water supply device of the third aspect,
In the solar heat collecting operation mode based on the solar heat collecting operation, the compressor is operated at a lower rotational speed than during the normal heat pump heat collecting operation in a time period adjacent to the time period of strong solar radiation, that is, in a time period of low solar radiation. Since the heat pump is operated, the power consumption of the compressor is reduced to about the same level as during the solar heat collection operation. By a certain time, the temperature of the hot water in the hot water tank can be raised to the set temperature.
【００６６】請求項４記載の貯湯式給湯装置によれば、
請求項３記載の貯湯式給湯装置の効果に加えて、外気温
度に基づいて、外気温度が低くなるほどヒートポンプ集
熱運転を実行する時間帯の割合を増加させるので、目的
の時刻までに貯湯槽の湯水を昇温沸上できる。According to the hot water storage type hot water supply device of the fourth aspect,
In addition to the effect of the hot water storage type hot water supply device according to claim 3, based on the outside air temperature, the ratio of the time zone in which the heat pump heat collection operation is performed is increased as the outside air temperature is lowered. Hot water can be heated and boiled.
【００６７】請求項５記載の貯湯式給湯装置によれば、
ソーラ集熱運転を基本とするソーラ集熱運転モードにお
いて、集熱温度検知手段で検知される集熱温度が設定温
度より高い場合にはソーラ集熱運転を実行させるととも
に、設定温度より低い場合には通常のヒートポンプ集熱
運転時よりも圧縮機を低回転数で運転するヒートポンプ
集熱運転を実行させるので、圧縮機の消費電力をソーラ
集熱運転時と同程度に抑制し、ソーラ集熱運転による昇
温沸上を補助して、季節や天候によらず略一定の時刻ま
でに貯湯槽の湯水を設定温度に昇温沸上できる。According to the hot water storage type hot water supply apparatus of claim 5,
In the solar heat collecting operation mode based on the solar heat collecting operation, when the heat collecting temperature detected by the heat collecting temperature detecting means is higher than the set temperature, the solar heat collecting operation is executed, and when the heat collecting temperature is lower than the set temperature, Makes the compressor operate at a lower speed than the normal heat pump heat collection operation, so the power consumption of the compressor is reduced to the same level as during the solar heat collection operation. , The temperature of the hot water in the hot water tank can be raised to the set temperature by a substantially constant time regardless of the season or weather.
【図１】本発明の一実施の形態を示す貯湯式給湯装置の
構成図である。FIG. 1 is a configuration diagram of a hot water supply type hot water supply apparatus according to an embodiment of the present invention.
【図２】同上貯湯式給湯装置の各運転モードでの運転状
態を示すタイムチャートである。FIG. 2 is a time chart showing an operation state in each operation mode of the hot water storage type hot water supply apparatus.
【図３】同上貯湯式給湯装置のソーラ集熱運転モードで
の運転状態の変形例を示すタイムチャートである。FIG. 3 is a time chart showing a modification of the operating state of the hot water storage type hot water supply apparatus in a solar heat collecting operation mode.
11 貯湯槽 21 ヒートポンプ集熱器 22 圧縮機 23 凝縮器 25 蒸発器 34 ソーラ集熱器 37，38 切換手段としての電磁弁 43 集熱温度検知手段としての集熱温度検知センサ 44 外気温度検知手段としての外気温度検知センサ 51 制御手段としての制御装置 11 Hot water storage tank 21 Heat pump heat collector 22 Compressor 23 Condenser 25 Evaporator 34 Solar heat collector 37, 38 Solenoid valve as switching means 43 Heat collecting temperature detecting sensor as heat collecting temperature detecting means 44 As outside air temperature detecting means Outside air temperature detection sensor 51 Control device as control means
───────────────────────────────────────────────────── フロントページの続き (72)発明者 今井 英充 群馬県前橋市古市町180番地 東芝機器株 式会社内 (72)発明者 入野 賢志 群馬県前橋市古市町180番地 東芝機器株 式会社内 (72)発明者 庭山 彬 群馬県前橋市古市町180番地 東芝機器株 式会社内 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Hidemitsu Imai 180 Furuichi-cho, Maebashi-shi, Gunma Toshiba Equipment Co., Ltd. (72) Inventor Kenshi 180 Furuichi-cho, Maebashi-shi, Gunma Pref. Inventor Akira Niwayama 180 Furuichi-cho, Maebashi City, Gunma Prefecture Inside Toshiba Equipment Co., Ltd.
Claims (5)
接続されるとともに冷媒が充填された閉回路にて構成さ
れるヒートポンプ集熱器と、 前記蒸発器に並列に接続されるソーラ集熱器と、 前記圧縮機および凝縮器に対して前記蒸発器およびソー
ラ集熱器のいずれか一方を切換接続する切換手段と、 前記凝縮器との熱交換によって昇温沸上される湯水を貯
湯する貯湯槽と、 外気温度を検知する外気温度検知手段と、 ヒートポンプ集熱運転とソーラ集熱運転とを併用する標
準運転モードを有し、この標準運転モードにおいて、前
記外気温度検知手段で検知される外気温度に基づいて、
外気温度が高いほどヒートポンプ集熱運転での前記圧縮
機の回転数を低く制御する制御手段とを具備しているこ
とを特徴とする貯湯式給湯装置。1. A heat pump collector comprising a compressor, a condenser, and an evaporator, which are sequentially connected in series and a closed circuit filled with a refrigerant, and a solar heat collector connected in parallel to the evaporator. A switching unit for switching and connecting one of the evaporator and the solar collector to the compressor and the condenser; and storing hot and cold water heated and boiled by heat exchange with the condenser. A hot water storage tank, an outside air temperature detecting means for detecting an outside air temperature, and a standard operation mode in which a heat pump heat collection operation and a solar heat collection operation are used in combination. In this standard operation mode, detection is performed by the outside air temperature detection means. Based on the outside air temperature,
Control means for controlling the number of revolutions of the compressor in the heat pump heat collecting operation to be lower as the outside air temperature is higher.
接続されるとともに冷媒が充填された閉回路にて構成さ
れるヒートポンプ集熱器と、 前記蒸発器に並列に接続されるソーラ集熱器と、 前記圧縮機および凝縮器に対して前記蒸発器およびソー
ラ集熱器のいずれか一方を切換接続する切換手段と、 前記凝縮器との熱交換によって昇温沸上される湯水を貯
湯する貯湯槽と、 外気温度を検知する外気温度検知手段と、 ヒートポンプ集熱運転とソーラ集熱運転とを併用する標
準運転モードを有し、この標準運転モードにおいて、前
記外気温度検知手段で検知される外気温度に基づいて、
外気温度が高いほどヒートポンプ集熱運転時での前記圧
縮機の高い回転数の運転の割合を少なく制御する制御手
段とを具備していることを特徴とする貯湯式給湯装置。2. A heat pump collector comprising a compressor, a condenser, and an evaporator, which are sequentially connected in series, and a closed circuit filled with a refrigerant, and a solar heat collector connected in parallel to the evaporator. A switching unit for switching and connecting one of the evaporator and the solar collector to the compressor and the condenser; and storing hot and cold water heated and boiled by heat exchange with the condenser. A hot water storage tank, an outside air temperature detecting means for detecting an outside air temperature, and a standard operation mode in which a heat pump heat collection operation and a solar heat collection operation are used in combination. In this standard operation mode, detection is performed by the outside air temperature detection means. Based on the outside air temperature,
A hot water supply type hot water supply device comprising: control means for controlling the ratio of the operation of the compressor at a high rotation speed during the heat pump heat collection operation to be lower as the outside air temperature is higher.
接続されるとともに冷媒が充填された閉回路にて構成さ
れるヒートポンプ集熱器と、 前記蒸発器に並列に接続されるソーラ集熱器と、 前記圧縮機および凝縮器に対して前記蒸発器およびソー
ラ集熱器のいずれか一方を切換接続する切換手段と、 前記凝縮器との熱交換によって昇温沸上される湯水を貯
湯する貯湯槽と、 ソーラ集熱運転を基本とするソーラ集熱運転モードを有
し、このソーラ集熱運転モードにおいて、日射の強い時
間帯に隣接する時間帯に、通常のヒートポンプ集熱運転
時よりも前記圧縮機を低回転数で運転するヒートポンプ
集熱運転を実行させる制御手段とを具備していることを
特徴とする貯湯式給湯装置。3. A heat pump collector comprising a compressor, a condenser, and an evaporator, which are sequentially connected in series and a closed circuit filled with a refrigerant, and a solar heat collector connected in parallel to the evaporator. A switching unit for switching and connecting one of the evaporator and the solar collector to the compressor and the condenser; and storing hot and cold water heated and boiled by heat exchange with the condenser. A hot water storage tank, has a solar heat collecting operation mode based on the solar heat collecting operation, and in this solar heat collecting operation mode, in a time period adjacent to the time period of strong solar radiation, compared with a normal heat pump heat collecting operation. Control means for executing a heat pump heat collection operation for operating the compressor at a low rotation speed.
備え、 制御手段は、前記外気温度検知手段で検知される外気温
度に基づいて、外気温度が低くなるほどヒートポンプ集
熱運転を実行する時間帯の割合を増加させることを特徴
とする請求項３記載の貯湯式給湯装置。4. An outside air temperature detecting means for detecting an outside air temperature, wherein the control means executes a heat pump heat collection operation as the outside air temperature decreases based on the outside air temperature detected by the outside air temperature detecting means. The hot water supply type hot water supply apparatus according to claim 3, wherein the ratio of the hot water supply type is increased.
接続されるとともに冷媒が充填された閉回路にて構成さ
れるヒートポンプ集熱器と、 前記蒸発器に並列に接続されるソーラ集熱器と、 前記圧縮機および凝縮器に対して前記蒸発器およびソー
ラ集熱器のいずれか一方を切換接続する切換手段と、 前記凝縮器との熱交換によって昇温沸上される湯水を貯
湯する貯湯槽と、 前記ソーラ集熱器による集熱温度を検知する集熱温度検
知手段と、 ソーラ集熱運転を基本とするソーラ集熱運転モードを有
し、このソーラ集熱運転モードにおいて、前記集熱温度
検知手段で検知される集熱温度が設定温度より高い場合
にはソーラ集熱運転を実行させるとともに、設定温度よ
り低い場合には通常のヒートポンプ集熱運転時よりも前
記圧縮機を低回転数で運転するヒートポンプ集熱運転を
実行させる制御手段とを具備していることを特徴とする
貯湯式給湯装置。5. A heat pump collector comprising a compressor, a condenser and an evaporator which are connected in series in series and filled with a refrigerant, and a solar heat collector which is connected in parallel to said evaporator. A switching unit for switching and connecting one of the evaporator and the solar collector to the compressor and the condenser; and storing hot and cold water heated and boiled by heat exchange with the condenser. A hot water storage tank, a heat collecting temperature detecting means for detecting a heat collecting temperature by the solar heat collecting device, and a solar heat collecting operation mode based on a solar heat collecting operation. When the heat collecting temperature detected by the heat temperature detecting means is higher than the set temperature, the solar heat collecting operation is executed, and when the heat collecting temperature is lower than the set temperature, the compressor is rotated at a lower speed than during the normal heat pump heat collecting operation. By number It and a control means for executing the heat pump heat collecting operation for rolling the hot-water storage type hot water supply apparatus according to claim.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20047199A JP2001027450A (en) | 1999-07-14 | 1999-07-14 | Storage type hot water supply apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20047199A JP2001027450A (en) | 1999-07-14 | 1999-07-14 | Storage type hot water supply apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001027450A true JP2001027450A (en) | 2001-01-30 |
Family
ID=16424881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20047199A Pending JP2001027450A (en) | 1999-07-14 | 1999-07-14 | Storage type hot water supply apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001027450A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108980954A (en) * | 2018-05-18 | 2018-12-11 | 广州宝能环境技术有限公司 | A kind of heat pump heat distribution system and its control method of energy saving |
| WO2021253760A1 (en) * | 2020-06-19 | 2021-12-23 | 南京启景环境科技有限公司 | Solar and air energy coupling system using illuminance control |
-
1999
- 1999-07-14 JP JP20047199A patent/JP2001027450A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108980954A (en) * | 2018-05-18 | 2018-12-11 | 广州宝能环境技术有限公司 | A kind of heat pump heat distribution system and its control method of energy saving |
| WO2021253760A1 (en) * | 2020-06-19 | 2021-12-23 | 南京启景环境科技有限公司 | Solar and air energy coupling system using illuminance control |
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