JP3401825B2 - Heat pump water heater - Google Patents
Heat pump water heaterInfo
- Publication number
- JP3401825B2 JP3401825B2 JP8171893A JP8171893A JP3401825B2 JP 3401825 B2 JP3401825 B2 JP 3401825B2 JP 8171893 A JP8171893 A JP 8171893A JP 8171893 A JP8171893 A JP 8171893A JP 3401825 B2 JP3401825 B2 JP 3401825B2
- Authority
- JP
- Japan
- Prior art keywords
- hot water
- water
- temperature
- heat pump
- auxiliary heater
- 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.)
- Expired - Fee Related
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims description 165
- 238000010079 rubber tapping Methods 0.000 claims description 19
- 239000003507 refrigerant Substances 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 4
- 230000005855 radiation Effects 0.000 description 2
- 239000008399 tap water Substances 0.000 description 2
- 235000020679 tap water Nutrition 0.000 description 2
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
Landscapes
- Heat-Pump Type And Storage Water Heaters (AREA)
Description
【発明の詳細な説明】
【０００１】
【産業上の利用分野】本発明は貯湯式のヒートポンプ給
湯装置に関するものである。
【０００２】
【従来の技術】従来この種のヒートポンプ給湯装置は特
開昭６０−１６４１５７号公報に示すような構成が知ら
れている。以下、その構成について図３、４を参照しな
がら説明する。
【０００３】図に示すように、圧縮機１、温水用熱交換
器２、絞り機構３、蒸発器４、アキュームレータ５を環
状の冷媒管路で結合しヒートポンプサイクルを構成して
いる。
【０００４】叉、貯湯槽６の最下部よりポンプ７を介し
て温水用熱交換器２に至る給水回路８と、温水用熱交換
器２の下流側に補助加熱器９を介して貯湯槽６に至る出
湯回路１０とにより、ヒートポンプサイクルと、貯湯槽
６を結合している。
【０００５】叉、１１は給水回路８中の水温を検知する
水温検知器であり、低温度の第１設定値と高温度の第２
設定値を有し、第１設定値によりヒートポンプの運転を
停止する信号を発し、第２設定値により補助加熱器９の
運転を停止する信号を発する。
【０００６】１２は貯湯槽６へ流入する温水温度検知器
で、これによりポンプ７の回転数を操作して循環水量を
制御し、ヒートポンプ、補助加熱器９の運転時における
貯湯槽６内への温水流入温度を一定にして、貯湯槽６上
部より順次温水を蓄える。１３は送風機、１４は貯湯槽
６に設けた給水管、１５は給湯管である。
【０００７】上記構成において、その動作を説明する
と、高外気温時で水温検知器１１の検知温度が第１設定
値以下では、補助加熱器９は作動しないヒートポンプ単
独運転で、温水温度検知器１２により一定温度の温水を
貯湯槽６上部より順次蓄える。
【０００８】この時蓄えた温水と貯湯槽６下部の低温水
との間には温度境界層ができ、この境界層が給水回路８
まで到達し、水温検知器１１の検知温度が第１設定値以
上になるとヒートポンプ運転を停止し補助加熱器９が運
転される。
【０００９】その後、水温検知器１１の検知温度が第２
設定値に達すると補助加熱器９が停止する。貯湯槽６に
残湯がある場合は、温度境界層が給水回路８まで到達す
る時間が早くなり、したがってヒートポンプ運転時間が
短く補助加熱器９の運転が長くなる。
【００１０】低外気温時においては、ヒートポンプと補
助加熱器９が同時運転し、水温検知器１１の検知温度が
第１設定値以上になるとヒートポンプ運転を停止し、水
温検知器１１の検知温度が第２設定値に達すると補助加
熱器９が停止する。以上により貯湯槽６内最下部まで均
一な高温湯を確保する。
【００１１】
【発明が解決しようとする課題】しかしながら上記従来
の構成によれば、図４に示すように、ヒートポンプ運転
時、貯湯槽６内の温度境界層が給水回路８まで到達し
て、水温検知器１１の検知温度が第１設定値Ｔ1以上に
なるとヒートポンプ運転を停止し、補助加熱器９が運転
される。
【００１２】この時に給湯管１５で出湯されると給水管
１４から冷水が貯湯槽６内に流入するため水温検知器１
１の検知温度が第１設定値Ｔ1以下となり補助加熱器９
がＯＦＦし、ヒートポンプ運転が開始されるが、補助加
熱器９の熱容量及び、ヒートポンプの立ち上がりが遅く
温水熱交換器２から出る温水温度上昇が遅いため、温水
温度検知器１２で検知する出湯温度Ｔoutがハンチング
を繰り返す。
【００１３】したがって、ポンプ７の流量変動が大きく
なり貯湯槽６内への温水流入温度を一定にする制御が困
難になるとか、ポンプ７の信頼性の低下などの課題があ
った。
【００１４】本発明は上記課題を解決するもので、貯湯
槽内への温水流入温度の制御性確保及び、装置の信頼性
を確保することを目的とする。
【００１５】
【課題を解決するための手段】本発明は上記目的を達成
するために、圧縮機、温水用熱交換器、絞り機構、蒸発
器を環状の冷媒管路で結合して成るヒートポンプと、貯
湯槽最下部よりポンプを介して温水用熱交換器に至る給
水回路と、前記給水回路に設けられた水温検知器と、温
水用熱交換器の下流側に設けられた補助加熱器と、前記
補助加熱器出口から貯湯槽最上部へ至る第１出湯回路
と、前記温水用熱交換器出口から電磁弁を介して補助加
熱器をバイパスし第１出湯回路に至る第２出湯回路と、
前記第１出湯回路に設けられた温水温度検知器と、貯湯
槽へ一定温度の温水を流入させるように前記電磁弁を制
御する制御器とを備えたものである。
【００１６】
【作用】本発明は上記構成によって、ヒートポンプ運転
時は電磁弁を開とし第２出湯回路に温水を流し、貯湯槽
内の温度境界層が給水回路まで到達し、水温検知器の検
知温度が上昇し、第１設定値に達した時ヒートポンプを
停止し、電磁弁を閉にするとともに補助加熱器をＯＮ
し、出湯などにより水温検知器の検知温度が低下しヒー
トポンプ運転に切り換えると同時に電磁弁を開とするこ
とにより、補助加熱器の熱容量及び、ヒートポンプの立
ち上がり時温水熱交換器から出る温水温度上昇が遅いた
めに起こる出湯温度のハンチングを防止して、貯湯槽内
へ一定温度の温水を流入させる。
【００１７】
【実施例】以下本発明の一実施例を図１を参照して説明
する。
【００１８】図１において、図３と同一符号は同一部材
を示し、同一機能を有しているので詳細な説明は省略
し、異なる点を中心に説明する。
【００１９】図１で１６は温水用熱交換器２出口から電
磁弁１７を介して補助加熱器９と温水温度検知器１２間
の第１出湯回路１０に至る第２出湯回路で、１８は水温
検知器１１、温水温度検知器１２各検知器からの信号に
より、補助加熱器９、ポンプ７、圧縮機１を制御する制
御器である。
【００２０】上記構成において、その動作を図２の制御
フローに基づいて説明する。まずヒートポンプ単独運転
を説明する。図２において機器がＯＮ（Ｓ１）される
と、まずポンプ７がＯＮし（Ｓ２）、圧縮機１がＯＮし
（Ｓ３）、電磁弁１７が開となる（Ｓ４）。
【００２１】これによりポンプ７で貯湯槽６内の水を給
水回路８を介して温水用熱交換器２に流動させてヒート
ポンプの凝縮熱により温水化し、第２出湯回路１６と第
１出湯回路１０を介して貯湯槽６上部より順次蓄える。
【００２２】補助加熱器９には温水は流れない。ここで
温水温度検知器１２により、温水用熱交換器２出口の湯
温Ｔoutを検知し（Ｓ５）、Ｔoutが設定値ＴＡと等しく
なるようにポンプ７の回転数を制御する（Ｓ６、Ｓ
７）。
【００２３】次に水温検知器１１で給水回路８の水温Ｔ
を検出し（Ｓ８）、第１設定値Ｔ1＞Ｔであれば上記ポ
ンプ７の制御を継続し、逆にＴ1＜Ｔであれば貯湯槽６
内の温度境界層が給水回路８まで到達したと判断し（Ｓ
９）、圧縮機１をＯＦＦし（Ｓ１０）、ヒートポンプ運
転を停止するとともに電磁弁１７を閉とし第２出湯回路
から補助加熱器９側に温水の流れを変更する（Ｓ１
１）。
【００２４】次に補助加熱器９をＯＮし（Ｓ１２）、温
水温度検知器１２により、補助加熱器９出口の湯温Ｔou
tを検知し（Ｓ１３）、Ｔoutが設定値ＴＡと等しくなる
ようにポンプ７の回転数を制御する（Ｓ１４、Ｓ１
５）。
【００２５】次に水温検知器１１で給水回路８の水温Ｔ
を検出し（Ｓ１６）、第２設定値Ｔ2とＴを比較する
（Ｓ１７）。
【００２６】Ｔ2＜Ｔであれば貯湯槽６内最下部まで均
一に昇温したと判断し、補助加熱器９をＯＦＦ（Ｓ１
８）、ポンプ７をＯＦＦする（Ｓ１９）。
【００２７】逆にＴ2＞Ｔであれば再度第１設定値Ｔ1＞
Ｔか判断し（Ｓ２０）、Ｔ1＜ＴであればＳ１３にもど
りポンプ７の制御を継続し、給湯管１５から出湯された
場合にはＴ1＞Ｔとなるから補助加熱器９をＯＦＦし
（Ｓ２１）、Ｓ３に戻りヒートポンプ運転を開始する。
【００２８】またヒートポンプと補助加熱器９の同時運
転時においては電磁弁１７を常に閉状態で従来の温水温
度制御を行う。以上の動作を制御器１８で行う。
【００２９】この実施例の構成によれば、ヒートポンプ
運転時は電磁弁１７と開とし第２出湯回路１６に温水を
流す。
【００３０】貯湯槽６内の温度境界層が給水回路８まで
到達し、水温検知器１１の検知温度が上昇し、第１設定
値に達した時ヒートポンプを停止し、電磁弁１７を閉に
するとともに補助加熱器９をＯＮする。
【００３１】出湯などにより水温検知器１１の検知温度
が低下しヒートポンプ運転に切り換えると同時に電磁弁
１７を開とすることにより、補助加熱器９への温水の流
れを止める。
【００３２】以上より、補助加熱器９の熱容量及び、ヒ
ートポンプの立ち上がり時温水熱交換器２から出る温水
温度上昇が遅いために起こる出湯温度のハンチングを防
止して、貯湯槽６内へ一定温度の温水を流入させること
ができ、ポンプ７の信頼性も向上する。
【００３３】またヒートポンプ運転時は補助加熱器９に
温水を流さないから補助加熱器９からの放熱が少なくな
り運転効率が向上する。
【００３４】
【発明の効果】以上実施例で説明したように本発明のヒ
ートポンプ給湯装置は、圧縮機、温水用熱交換器、絞り
機構、蒸発器を環状の冷媒管路で結合して成るヒートポ
ンプと、貯湯槽最下部よりポンプを介して温水用熱交換
器に至る給水回路と、前記給水回路に設けられた水温検
知器と、温水用熱交換器の下流側に設けられた補助加熱
器と、前記補助加熱器出口から貯湯槽最上部へ至る第１
出湯回路と、前記温水用熱交換器出口から電磁弁を介し
て補助加熱器をバイパスし第１出湯回路に至る第２出湯
回路と、前記第１出湯回路に設けられた温水温度検知器
と、貯湯槽へ一定温度の温水を流入させるように前記電
磁弁を制御する制御器とを備えたものであるから、補助
加熱器運転からヒートポンプ運転に切り換わる時の補助
加熱器の熱容量及び、温水熱交換器から出る温水温度上
昇が遅いために起こる出湯温度のハンチングを防止し
て、貯湯槽内へ一定温度の温水を流入させることがで
き、ポンプの信頼性も向上する。
【００３５】またヒートポンプ運転時は補助加熱器に温
水を流さないから補助加熱器からの放熱が少なくなり運
転効率が向上する。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a storage type heat pump water heater. 2. Description of the Related Art Conventionally, a heat pump hot water supply apparatus of this type has been known as disclosed in Japanese Patent Application Laid-Open No. SHO 60-164157. Hereinafter, the configuration will be described with reference to FIGS. As shown in the figure, a compressor 1, a heat exchanger 2 for hot water, a throttle mechanism 3, an evaporator 4, and an accumulator 5 are connected by an annular refrigerant line to constitute a heat pump cycle. In addition, a water supply circuit 8 extending from the lowermost part of the hot water storage tank 6 to the hot water heat exchanger 2 via the pump 7, and a hot water storage tank 6 downstream of the hot water heat exchanger 2 via an auxiliary heater 9. The heat pump cycle and the hot water storage tank 6 are connected by a tapping circuit 10 which reaches the hot water supply circuit. [0005] Reference numeral 11 denotes a water temperature detector for detecting the temperature of the water in the water supply circuit 8.
It has a set value, issues a signal for stopping the operation of the heat pump according to the first set value, and issues a signal for stopping the operation of the auxiliary heater 9 according to the second set value. Reference numeral 12 denotes a temperature detector for the hot water flowing into the hot water tank 6, which controls the number of rotations of the pump 7 to control the amount of circulating water, and which is supplied to the hot water tank 6 when the heat pump and the auxiliary heater 9 are operated. The hot water inflow temperature is kept constant, and hot water is sequentially stored from the upper part of the hot water storage tank 6. 13 is a blower, 14 is a water supply pipe provided in the hot water storage tank 6, and 15 is a hot water supply pipe. The operation of the above configuration will be described. When the temperature detected by the water temperature detector 11 is at or below the first set value at a high outside air temperature, the auxiliary heater 9 is not operated and the hot water temperature detector 12 is operated alone. Thereby, hot water of a certain temperature is sequentially stored from the upper part of the hot water storage tank 6. [0008] A temperature boundary layer is formed between the hot water stored at this time and the low-temperature water below the hot water storage tank 6, and this boundary layer is formed by a water supply circuit 8.
When the temperature reaches the first set value or more, the heat pump operation is stopped, and the auxiliary heater 9 is operated. Thereafter, the temperature detected by the water temperature detector 11 is changed to the second temperature.
When the set value is reached, the auxiliary heater 9 stops. When there is residual hot water in the hot water storage tank 6, the time required for the temperature boundary layer to reach the water supply circuit 8 is shortened, so that the heat pump operation time is short and the operation of the auxiliary heater 9 is long. At a low outside air temperature, the heat pump and the auxiliary heater 9 operate simultaneously, and when the temperature detected by the water temperature detector 11 becomes equal to or higher than the first set value, the heat pump operation is stopped, and the temperature detected by the water temperature detector 11 becomes lower. When the second set value is reached, the auxiliary heater 9 stops. As described above, uniform high-temperature hot water is ensured up to the lowermost portion in the hot water storage tank 6. [0011] However, according to the above-mentioned conventional configuration, as shown in FIG. 4, during the operation of the heat pump, the temperature boundary layer in the hot water storage tank 6 reaches the water supply circuit 8, and the water temperature increases. When the temperature detected by the detector 11 becomes equal to or higher than the first set value T1, the heat pump operation is stopped, and the auxiliary heater 9 is operated. At this time, when the hot water is supplied from the hot water supply pipe 15, the cold water flows from the water supply pipe 14 into the hot water storage tank 6, so that the water temperature detector 1
1 becomes lower than the first set value T1 and the auxiliary heater 9
Is turned off, and the heat pump operation is started. However, since the heat capacity of the auxiliary heater 9 and the rise of the heat pump are slow and the temperature of the hot water coming out of the hot water heat exchanger 2 rises slowly, the tap water temperature Tout detected by the hot water temperature detector 12 is detected. Repeats hunting. Therefore, there have been problems such as a large fluctuation in the flow rate of the pump 7, making it difficult to control the temperature of the hot water flowing into the hot water tank 6 to be constant, and a decrease in the reliability of the pump 7. SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and has as its object to secure controllability of the temperature of hot water flowing into a hot water storage tank and reliability of the apparatus. In order to achieve the above object, the present invention provides a compressor, a heat exchanger for hot water, a throttle mechanism, an evaporator,
Heat pump consisting of heat exchangers connected by an annular refrigerant line,
Supply from the bottom of hot water tank to hot water heat exchanger via pump
A water circuit, a water temperature detector provided in the water supply circuit,
An auxiliary heater provided downstream of the water heat exchanger,
The first tapping circuit from the auxiliary heater outlet to the top of the hot water tank
From the outlet of the heat exchanger for hot water via an electromagnetic valve.
A second tapping circuit that bypasses the heater and leads to the first tapping circuit;
A hot water temperature detector provided in the first hot water supply circuit;
The solenoid valve is controlled so that hot water of a certain temperature flows into the tank.
And a control unit. According to the present invention, when the heat pump is operated, the solenoid valve is opened to flow hot water into the second tapping circuit, the temperature boundary layer in the hot water tank reaches the water supply circuit, and the water temperature detector detects the temperature. When the temperature rises and reaches the first set value, stop the heat pump, close the solenoid valve and turn on the auxiliary heater
When the temperature detected by the water temperature detector drops due to hot water, etc., switching to the heat pump operation and opening the solenoid valve at the same time, the heat capacity of the auxiliary heater and the temperature rise of the hot water from the hot water heat exchanger when the heat pump starts up are reduced. Hunting of the tapping temperature, which occurs due to the slowness, is prevented, and hot water of a certain temperature is caused to flow into the hot water tank. An embodiment of the present invention will be described below with reference to FIG. In FIG. 1, the same reference numerals as those in FIG. 3 denote the same members, and have the same functions. Therefore, detailed description will be omitted, and different points will be mainly described. In FIG. 1, reference numeral 16 denotes a second tapping circuit extending from the outlet of the hot water heat exchanger 2 to a first tapping circuit 10 between the auxiliary heater 9 and the hot water temperature detector 12 via an electromagnetic valve 17; A controller that controls the auxiliary heater 9, the pump 7, and the compressor 1 based on signals from the detector 11 and the hot water temperature detector 12. The operation of the above configuration will be described with reference to the control flow of FIG. First, the single operation of the heat pump will be described. In FIG. 2, when the device is turned on (S1), first, the pump 7 is turned on (S2), the compressor 1 is turned on (S3), and the solenoid valve 17 is opened (S4). [0021] Thus the water in the hot water storage tank 6 by the pump 7 through a water supply circuit 8 to flow to the hot water heat exchanger 2 and heated by heat of condensation of the heat <br/> pump, second tapping circuit 16 And from the upper part of the hot water storage tank 6 via the first hot water supply circuit 10. Hot water does not flow through the auxiliary heater 9. Here, the hot water temperature detector 12 detects the hot water temperature Tout at the outlet of the heat exchanger 2 for hot water (S5), and controls the rotation speed of the pump 7 so that Tout becomes equal to the set value TA (S6, S).
7). Next, the water temperature T of the water supply circuit 8 is detected by the water temperature detector 11.
(S8), the control of the pump 7 is continued if the first set value T1> T, and conversely if T1 <T, the hot water tank 6
It is determined that the temperature boundary layer in the inside has reached the water supply circuit 8 (S
9) The compressor 1 is turned off (S10), the operation of the heat pump is stopped, the solenoid valve 17 is closed, and the flow of hot water is changed from the second tapping circuit to the auxiliary heater 9 (S1).
1). Next, the auxiliary heater 9 is turned on (S12), and the hot water temperature detector 12 detects the hot water temperature Tou at the outlet of the auxiliary heater 9.
t is detected (S13), and the rotation speed of the pump 7 is controlled so that Tout becomes equal to the set value TA (S14, S1).
5). Next, the water temperature T of the water supply circuit 8 is detected by the water temperature detector 11.
Is detected (S16), and the second set value T2 is compared with T (S17). If T2 <T, it is determined that the temperature has uniformly risen to the lowermost portion of the hot water tank 6, and the auxiliary heater 9 is turned off (S1).
8) The pump 7 is turned off (S19). Conversely, if T2> T, the first set value T1> again
If T1 <T, the process returns to S13 and the control of the pump 7 is continued. If the hot water is discharged from the hot water supply pipe 15, T1> T, the auxiliary heater 9 is turned off (S21). ), Returning to S3 to start the heat pump operation. During the simultaneous operation of the heat pump and the auxiliary heater 9, the conventional hot water temperature control is performed with the solenoid valve 17 always closed. The above operation is performed by the controller 18. According to the configuration of this embodiment, when the heat pump is operated, the electromagnetic valve 17 is opened and hot water flows through the second tapping circuit 16. When the temperature boundary layer in the hot water tank 6 reaches the water supply circuit 8 and the temperature detected by the water temperature detector 11 rises and reaches the first set value, the heat pump is stopped and the solenoid valve 17 is closed. At the same time, the auxiliary heater 9 is turned on. The flow of hot water to the auxiliary heater 9 is stopped by opening the electromagnetic valve 17 at the same time as switching to the heat pump operation by lowering the temperature detected by the water temperature detector 11 due to hot water or the like. As described above , the hunting of the tap water temperature caused by the slow rise of the hot water temperature from the hot water heat exchanger 2 when the heat pump rises and the heat capacity of the auxiliary heater 9 is prevented, and the constant temperature into the hot water storage tank 6 is prevented. Hot water can flow in, and the reliability of the pump 7 is also improved. During operation of the heat pump, no hot water is supplied to the auxiliary heater 9, so that heat radiation from the auxiliary heater 9 is reduced and the operation efficiency is improved. As described in the above embodiments, the heat pump hot water supply apparatus of the present invention comprises a compressor, a heat exchanger for hot water,
Heat pump consisting of a mechanism and an evaporator connected by an annular refrigerant line.
And heat exchange for hot water from the bottom of the hot water tank via a pump
A water supply circuit leading to a water heater, and a water temperature detector provided in the water supply circuit.
Auxiliary heating provided downstream of the sensor and hot water heat exchanger
And the first from the auxiliary heater outlet to the top of the hot water tank
A tapping circuit and an outlet from the hot water heat exchanger via an electromagnetic valve.
Second hot water bypassing the auxiliary heater and reaching the first hot water circuit
Circuit and a hot water temperature detector provided in the first tapping circuit
And the above-mentioned electric power so that hot water of a certain temperature flows into the hot water tank.
A controller for controlling the magnetic valve, so that the heat capacity of the auxiliary heater when switching from the auxiliary heater operation to the heat pump operation and hot water temperature rise due to a slow rise in hot water temperature from the hot water heat exchanger Prevention of temperature hunting allows hot water at a constant temperature to flow into the hot water storage tank, thereby improving the reliability of the pump. Further, during the operation of the heat pump, no hot water is supplied to the auxiliary heater, so that heat radiation from the auxiliary heater is reduced and the operation efficiency is improved.
【図面の簡単な説明】
【図１】本発明の一実施例におけるヒートポンプ給湯装
置の回路構成図
【図２】実施例の制御フロー図
【図３】従来のヒートポンプ給湯装置の回路構成図
【図４】時間と水温、水流量の関係を示す特性図
【符号の説明】
１ 圧縮機
２ 温水用熱交換器
３ 絞り機構
４ 蒸発器
６ 貯湯槽
７ ポンプ
８ 給水回路
９ 補助加熱器
１０ 第１出湯回路（出湯回路）
１１ 水温検知器
１２ 温水温度検知器
１６ 第２出湯回路
１７ 電磁弁
１８ 制御器BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a circuit configuration diagram of a heat pump water heater in one embodiment of the present invention. FIG. 2 is a control flow diagram of the embodiment. FIG. 3 is a circuit configuration diagram of a conventional heat pump water heater. 4: Characteristic diagram showing the relationship between time, water temperature, and water flow rate [Description of symbols] 1 Compressor 2 Heat exchanger for hot water 3 Throttle mechanism 4 Evaporator 6 Hot water tank 7 Pump 8 Water supply circuit 9 Auxiliary heater 10 First hot water Circuit (water tapping circuit) 11 Water temperature detector 12 Hot water temperature detector 16 Second tapping circuit 17 Solenoid valve 18 Controller
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭60−164157（ＪＰ，Ａ) 特開 昭57−204777（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) F24H 1/00 611 F24H 1/18 302 ────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-60-164157 (JP, A) JP-A-57-204777 (JP, A) (58) Fields investigated (Int. Cl. 7 , DB name) F24H 1/00 611 F24H 1/18 302
Claims (1)
発器を環状の冷媒管路で結合して成るヒートポンプと、
貯湯槽最下部よりポンプを介して温水用熱交換器に至る
給水回路と、前記給水回路に設けられた水温検知器と、
温水用熱交換器の下流側に設けられた補助加熱器と、前
記補助加熱器出口から貯湯槽最上部へ至る第１出湯回路
と、前記温水用熱交換器出口から電磁弁を介して補助加
熱器をバイパスし第１出湯回路に至る第２出湯回路と、
前記第１出湯回路に設けられた温水温度検知器と、貯湯
槽へ一定温度の温水を流入させるように前記電磁弁を制
御する制御器とを備えたヒートポンプ給湯装置。(57) [Claim 1] A heat pump in which a compressor, a heat exchanger for hot water, a throttle mechanism, and an evaporator are connected by an annular refrigerant pipe;
A water supply circuit from the bottom of the hot water tank to the hot water heat exchanger via a pump, and a water temperature detector provided in the water supply circuit,
An auxiliary heater provided downstream of the hot water heat exchanger, a first tapping circuit extending from the auxiliary heater outlet to the top of the hot water storage tank, and auxiliary heating via the solenoid valve from the hot water heat exchanger outlet A second tapping circuit that bypasses the vessel and leads to the first tapping circuit;
And hot water temperature detector provided in the first tapping circuit, hot-water
The solenoid valve is controlled so that hot water of a certain temperature flows into the tank.
A heat pump water heater having a controller for controlling the water supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8171893A JP3401825B2 (en) | 1993-04-08 | 1993-04-08 | Heat pump water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8171893A JP3401825B2 (en) | 1993-04-08 | 1993-04-08 | Heat pump water heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06294547A JPH06294547A (en) | 1994-10-21 |
| JP3401825B2 true JP3401825B2 (en) | 2003-04-28 |
Family
ID=13754197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8171893A Expired - Fee Related JP3401825B2 (en) | 1993-04-08 | 1993-04-08 | Heat pump water heater |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3401825B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005201538A (en) * | 2004-01-15 | 2005-07-28 | Sunpot Co Ltd | Heat pump type water heater |
| JP5433212B2 (en) * | 2008-11-13 | 2014-03-05 | 株式会社日本サーモエナー | Hot water system |
| JP5259536B2 (en) * | 2009-09-09 | 2013-08-07 | 株式会社コロナ | Heat pump water heater |
-
1993
- 1993-04-08 JP JP8171893A patent/JP3401825B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06294547A (en) | 1994-10-21 |
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|---|---|---|---|
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