JPH0333987B2 - - Google Patents
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- Publication number
- JPH0333987B2 JPH0333987B2 JP59099188A JP9918884A JPH0333987B2 JP H0333987 B2 JPH0333987 B2 JP H0333987B2 JP 59099188 A JP59099188 A JP 59099188A JP 9918884 A JP9918884 A JP 9918884A JP H0333987 B2 JPH0333987 B2 JP H0333987B2
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- hot water
- heating
- valve
- compressor
- heat exchanger
- Prior art date
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- Steam Or Hot-Water Central Heating Systems (AREA)
Description
【発明の詳細な説明】
〔発明の技術分野〕
この発明はヒートポンプ装置を用いて冷暖房お
よび貯湯槽の水を加熱することのできる冷暖房・
給湯ヒートポンプ装置に関するものである。[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to an air-conditioning/heating system that uses a heat pump device to heat water in a hot water storage tank.
The present invention relates to a hot water supply heat pump device.
従来、冷暖房ヒートポンプ装置として第１図に
示すものがあり、また冷暖房・給湯ヒートポンプ
装置として第２図に示すものがあつた。第１図お
よび第２図において、１は圧縮機、２は冷暖房切
換用四方弁、３，３ａ，３ｂは室内熱交換器、
４，４ａ，４ｂは膨張機構、５は室外熱交換器、
６ａ，６ｂは電磁弁、７は貯湯槽、８は貯湯槽７
内に設けた加熱コイル、８ａは電磁弁、９は市水
取入口、１０は蛇口である。
BACKGROUND ART Conventionally, there has been a heating/cooling heat pump device shown in FIG. 1, and a heating/cooling/hot water supply heat pump device shown in FIG. 2. In Figures 1 and 2, 1 is a compressor, 2 is a four-way valve for switching between air conditioning and heating, 3, 3a, and 3b are indoor heat exchangers,
4, 4a, 4b are expansion mechanisms, 5 is an outdoor heat exchanger,
6a, 6b are solenoid valves, 7 is a hot water tank, 8 is a hot water tank 7
8a is a solenoid valve, 9 is a city water intake, and 10 is a faucet.
第１図のヒートポンプ装置では、冷媒回路の膨
張機構４と四方弁２の間に複数台並列に室内熱交
換器、３ａ，３ｂがそれぞれ電磁弁６ａ，６ｂを
介して接続してある。 In the heat pump device shown in FIG. 1, a plurality of indoor heat exchangers 3a and 3b are connected in parallel between an expansion mechanism 4 of a refrigerant circuit and a four-way valve 2 via electromagnetic valves 6a and 6b, respectively.
また、第２図のヒートポンプ装置では、冷媒回
路の膨張機構４と四方弁２との間に室内熱交換器
３と貯湯槽７内に設けた加熱コイル８がそれぞれ
の電磁弁６ａ，８ａを介して並列に接続してあ
る。 In the heat pump device shown in FIG. 2, a heating coil 8 provided in an indoor heat exchanger 3 and a hot water storage tank 7 is connected between an expansion mechanism 4 of a refrigerant circuit and a four-way valve 2 via respective electromagnetic valves 6a and 8a. are connected in parallel.
次に第１図の冷暖房ヒートポンプ装置の動作を
説明する。 Next, the operation of the heating and cooling heat pump device shown in FIG. 1 will be explained.
一般にこれらの装置は複数の部屋を冷暖房する
ヒートポンプ装置であり、冷房時には圧縮機１か
ら吐出した高温高圧の冷媒ガスは図中実線のよう
に流れて、四方弁２から室外熱交換機５に至り、
ここで冷却されて凝縮する。さらに高圧の液冷媒
は膨張弁４ａを通つて減圧される。室内熱交換器
３ａ，３ｂの電磁弁６ａ，６ｂはそれぞれ負荷が
発生した時に開いて冷媒を流す。そこで、膨張弁
４ａからの低圧液冷媒が室内熱交換器３ａ，３ｂ
で蒸発して室内から熱を奪いガス化する。この低
圧ガスは四方弁２を通つて再び圧縮機１に吸込ま
れて圧縮されサイクルが繰り返される。 Generally, these devices are heat pump devices that cool and heat multiple rooms. During cooling, high-temperature, high-pressure refrigerant gas discharged from the compressor 1 flows as shown by the solid line in the figure, and reaches the outdoor heat exchanger 5 from the four-way valve 2.
Here it is cooled and condensed. Further, the high pressure liquid refrigerant is depressurized through the expansion valve 4a. The solenoid valves 6a and 6b of the indoor heat exchangers 3a and 3b open when a load occurs to allow the refrigerant to flow. Therefore, the low pressure liquid refrigerant from the expansion valve 4a is transferred to the indoor heat exchangers 3a and 3b.
It evaporates, taking heat from the room and turning it into gas. This low-pressure gas is sucked into the compressor 1 again through the four-way valve 2, where it is compressed and the cycle is repeated.
暖房時には圧縮機１から吐出した高温高圧の冷
媒ガスは図中破線のように流れて、四方弁２から
室内熱交換器、３ａ，３ｂに至り、ここで放熱し
て凝縮することによつて暖房を行なう。更に高圧
の液冷媒は膨張弁４ｂを通つて減圧される。減圧
された液冷媒は室外熱交換器５に至り、外気で加
熱されて蒸発する。この低圧ガスは四方弁２を通
り再び圧縮機１へ吸込まれサイクルが繰り返され
る。 During heating, the high-temperature, high-pressure refrigerant gas discharged from the compressor 1 flows as shown by the broken line in the figure, and reaches the indoor heat exchanger 3a, 3b from the four-way valve 2, where it radiates heat and condenses, thereby producing heating. Do this. Further, the high pressure liquid refrigerant is depressurized through the expansion valve 4b. The reduced pressure liquid refrigerant reaches the outdoor heat exchanger 5, where it is heated by the outside air and evaporated. This low pressure gas is sucked into the compressor 1 again through the four-way valve 2 and the cycle is repeated.
また、第２図の冷暖房・給湯ヒートポンプ装置
の場合は、室内熱交換器の一部を貯湯槽加熱コイ
ルに変更したものであり、給湯加熱時には電磁弁
６ａを閉じて電磁弁８ａを開き、四方弁２は暖房
用に切替えられる。暖房時には電磁弁６ａを開け
て電磁弁８ａを閉じる。また冷房時には電磁弁８
ａを閉じ、電磁弁６ａを開く。そして、上述した
以外の動作は第１図のヒートポンプ装置と同様で
ある。 In addition, in the case of the air conditioning/hot water heat pump device shown in Fig. 2, a part of the indoor heat exchanger is replaced with a hot water storage tank heating coil, and when heating hot water, the solenoid valve 6a is closed and the solenoid valve 8a is opened. Valve 2 is switched for heating. During heating, the solenoid valve 6a is opened and the solenoid valve 8a is closed. Also, when cooling, the solenoid valve 8
a and open the solenoid valve 6a. The operations other than those described above are the same as those of the heat pump device shown in FIG.
ところで、このような従来のヒートポンプ装置
により貯湯槽７内の水を加熱するには、第２図の
ように室内熱交換器３ａ，３ｂの一部をコイル状
にして貯湯槽７内に設けることが行なわれている
が、冷房時の廃熱を回収して貯湯槽８を加熱する
などの運転ができない等の欠点があつた。 By the way, in order to heat the water in the hot water storage tank 7 with such a conventional heat pump device, it is necessary to make part of the indoor heat exchangers 3a and 3b into a coil shape and install it in the hot water storage tank 7 as shown in FIG. However, there are drawbacks such as the inability to recover waste heat from cooling to heat the hot water tank 8.
この発明は上記のような従来の装置の欠点を除
去するためになされたもので、圧縮機１の吐出口
に三方弁１１を設けて高温高圧の冷媒ガスを貯湯
槽内の加熱コイルに導き、水を加熱した後、凝縮
した冷媒を冷暖房運転モードにより切替えて、膨
張弁４の両側へ選択的に戻すようにしたことによ
つて、冷暖房と給湯を同時に行なえるようにする
と共に、暖房・給湯加熱運転時には暖房運転を第
１優先モードとしながらある時間帯を設定して、
給湯加熱を行ない、その時のインバータ周波数を
演算によつて求めた低周波数で運転する冷暖房・
給湯ヒートポンプ装置を提供することを目的とし
ている。
This invention was made in order to eliminate the drawbacks of the conventional device as described above, and a three-way valve 11 is provided at the discharge port of the compressor 1 to guide high temperature and high pressure refrigerant gas to a heating coil in a hot water storage tank. After heating the water, the condensed refrigerant is switched depending on the cooling/heating operation mode and is selectively returned to both sides of the expansion valve 4, thereby making it possible to perform cooling/heating and hot water supply at the same time. During heating operation, set a certain time period while making heating operation the first priority mode.
Air conditioning/heating system that heats hot water and operates at a low frequency determined by calculation of the inverter frequency at that time.
The purpose is to provide a hot water heat pump device.
以下、この発明の一実施例を第３図によつて説
明する。
An embodiment of the present invention will be described below with reference to FIG.
第３図中、第１図および第２図と同一符号は同
一又は相当部分を示し、１は圧縮機、２は四方
弁、３ａ，３ｂは室内熱交換器、４は膨張弁、５
は室外熱交換器、６ａ，６ｂは電磁弁、７は貯湯
槽、８は貯湯槽７内の加熱コイル、９は貯湯槽７
への市水取入口、１０は給湯用の蛇口である。 In FIG. 3, the same reference numerals as in FIGS. 1 and 2 indicate the same or corresponding parts, 1 is a compressor, 2 is a four-way valve, 3a, 3b is an indoor heat exchanger, 4 is an expansion valve, 5
is an outdoor heat exchanger, 6a and 6b are solenoid valves, 7 is a hot water storage tank, 8 is a heating coil in the hot water storage tank 7, and 9 is a hot water storage tank 7
10 is a faucet for supplying hot water.
切換弁である三方弁１１の分岐ａは圧縮機１の
吐出側に設けてあり、一方の分岐ｂは四方弁２に
接続され、他方の分岐ｃは配管１２によつて貯湯
槽７に挿入した加熱コイル８に接続してある。 Branch a of the three-way valve 11, which is a switching valve, is provided on the discharge side of the compressor 1, one branch b is connected to the four-way valve 2, and the other branch c is inserted into the hot water storage tank 7 via piping 12. It is connected to a heating coil 8.
配管１２は加熱コイル８の出口側で分岐し、分
岐部１３から第１電磁弁１４を介して膨張弁４と
室内熱交換器３ａ，３ｂの間に接続してある。 The pipe 12 branches off at the outlet side of the heating coil 8, and is connected from the branch part 13 via the first electromagnetic valve 14 between the expansion valve 4 and the indoor heat exchangers 3a and 3b.
分岐部１３から分岐した配管１５は第２電磁弁
１６を介して膨張弁４と室外熱交換器５の間に接
続してある。１７は圧縮機１の容量制御を行なう
インバータ、１８は三方弁１１および第１、第２
電磁弁１４，１６を制御するタイマー付き制御装
置で、貯湯槽７に設けた貯湯槽下部水温検知器１
９と貯湯槽上部水温検知器２０、室外熱交換器５
に設けた外気温度検知器２１からそれぞれ検出信
号が入力される。 A pipe 15 branched from the branch portion 13 is connected between the expansion valve 4 and the outdoor heat exchanger 5 via a second electromagnetic valve 16 . 17 is an inverter that controls the capacity of the compressor 1; 18 is a three-way valve 11 and first and second valves;
A control device with a timer that controls the solenoid valves 14 and 16, and a water temperature sensor 1 installed in the hot water tank 7.
9, hot water tank upper water temperature detector 20, outdoor heat exchanger 5
Detection signals are input from the outside air temperature detectors 21 provided at the respective locations.
次にこの実施例の冷暖房・給湯ヒートポンプ装
置の動作について説明する。 Next, the operation of the air conditioning/hot water supply heat pump device of this embodiment will be explained.
暖房時には圧縮機１から吐出された冷媒ガスは
三方弁１１の分岐ａ，ｂより四方弁２の破線を経
由して室内熱交換器３ａ，３ｂのいずれか（また
は両方）に至り、ここで凝縮して膨張弁４を通り
室外熱交換器５で蒸発して再び四方弁２の破線を
通り圧縮機１へ戻る。 During heating, the refrigerant gas discharged from the compressor 1 passes from branches a and b of the three-way valve 11 to one of the indoor heat exchangers 3a and 3b (or both) via the broken line of the four-way valve 2, where it is condensed. It passes through the expansion valve 4, evaporates in the outdoor heat exchanger 5, and returns to the compressor 1 through the broken line of the four-way valve 2 again.
冷房時には、圧縮機１から吐出された冷媒ガス
は三方弁１１の分岐ａ，ｂより四方弁２の実線を
通つて室外熱交換器５で凝縮して膨張弁４を通
り、室内熱交換器３ａ，３ｂのいずれか（又は両
方）に至り、ここで蒸発する。この冷媒ガスは四
方弁２を経て再び圧縮機１へ戻る。 During cooling, the refrigerant gas discharged from the compressor 1 passes from branches a and b of the three-way valve 11 to the solid line of the four-way valve 2, condenses in the outdoor heat exchanger 5, passes through the expansion valve 4, and returns to the indoor heat exchanger 3a. , 3b (or both), where it evaporates. This refrigerant gas passes through the four-way valve 2 and returns to the compressor 1 again.
冷房給湯時には、圧縮機１から吐出された冷媒
ガスは三方弁１１の分岐ａ，ｃを経て貯湯槽７の
加熱コイル８で凝縮して水を加熱する。その後、
冷媒は第２電磁弁１６を経て膨張弁４を通り室内
熱交換器３ａ，３ｂのいずれか（又は両方）に至
り、ここで蒸発する。この冷媒ガスは四方弁２を
経て再び圧縮機１に戻る。 During hot water supply for cooling, refrigerant gas discharged from the compressor 1 passes through branches a and c of the three-way valve 11 and is condensed in the heating coil 8 of the hot water storage tank 7 to heat water. after that,
The refrigerant passes through the second electromagnetic valve 16, the expansion valve 4, and reaches either (or both) of the indoor heat exchangers 3a, 3b, where it evaporates. This refrigerant gas passes through the four-way valve 2 and returns to the compressor 1 again.
給湯加熱時には、圧縮機１から吐出された冷媒
ガスは三方弁１１の分岐ａ，ｃを経て貯湯槽加熱
コイル８で凝縮して水を加熱する。その後、第１
電磁弁１４を経て膨張弁４を通り室外熱交換器５
に至り、ここで蒸発する。この冷媒ガスは四方弁
２を経て再び圧縮機１に戻る。 When heating hot water, the refrigerant gas discharged from the compressor 1 passes through branches a and c of the three-way valve 11 and is condensed in the hot water tank heating coil 8 to heat the water. Then the first
The outdoor heat exchanger 5 passes through the solenoid valve 14 and the expansion valve 4.
, where it evaporates. This refrigerant gas passes through the four-way valve 2 and returns to the compressor 1 again.
また、暖房・給湯加熱運転時には三方弁１１を
暖房時と同様に分岐ａ，ｂを接続しておき、サー
モスタツトのような室内温度検知器（図示せず）
で室温が設定値に上昇した時は三方弁１１を切換
えて分岐ａ，ｃに接続し、加熱コイル８により貯
湯槽７内の水を加熱し、室温が設定値未満になる
と暖房に戻すようにして、暖房と給湯加熱の選択
運転を行なうようにしてもよい。 In addition, during heating/hot water heating operation, branches a and b of the three-way valve 11 are connected in the same way as during heating, and an indoor temperature sensor such as a thermostat (not shown) is connected.
When the room temperature rises to the set value, the three-way valve 11 is switched and connected to branches a and c, and the heating coil 8 heats the water in the hot water tank 7, and when the room temperature falls below the set value, it returns to heating. Alternatively, selective operation between heating and hot water heating may be performed.
以上、各運転モード時の冷媒の流れについて述
べたが、暖房・給湯加熱運転には常に暖房優先と
なり、暖房負荷に応じて暖房運転が行なわれる。 The flow of refrigerant in each operation mode has been described above, but heating is always given priority in heating and hot water heating operations, and heating operation is performed according to the heating load.
一般に住宅における暖房負荷は第４図に示すよ
うに、朝６時から９時頃までに第１のピークがあ
り、日中は天候に応じて幾分かの負荷があり、夕
刻から夜間にかけてピークがある。そして24時頃
までに負荷はなくなる。この装置では給湯加熱運
転を行なう時間帯を例えば日中に設定すると、４
〜５時間位給湯加熱を行なう時間が取れることに
なる。 As shown in Figure 4, the heating load in a house generally has its first peak between 6:00 and 9:00 in the morning, some load during the day depending on the weather, and a peak in the evening and night. There is. And by around 24:00 the load will be gone. With this device, if the time period for hot water heating operation is set, for example, during the day,
This will allow approximately 5 hours of time to heat the hot water.
そこで、予め入力されている貯湯槽容量（Vl）
と沸き上げ湯温TH℃、貯湯槽下部水温検知器１
９より上部にあることで定義される貯湯槽上部容
量V1に加えて、各水温検知器１９，２０により
検出される貯湯槽下部水温T2℃、貯湯槽上部水
温T1℃より(1)式を用いて貯湯槽水温T3℃を求め
る。 Therefore, the pre-input hot water tank capacity (Vl)
and boiling water temperature T H ℃, water temperature detector at the bottom of the hot water tank 1
( 1 ) Find the hot water tank water temperature T 3 ℃ using the formula.
T3＝｛T1×V1＋T2×（Ｖ−V1）｝／Ｖ ……(1)
次に、沸き上げ湯温TH℃までの平均水温T4℃
は次の(2)式で決定される。T 3 = {T 1 ×V 1 +T 2 × (V-V 1 )}/V ......(1) Next, the average water temperature T 4 ℃ up to the boiling water temperature T H ℃
is determined by the following equation (2).
T4＝（T3＋TH）／２ ……(2)
そして次に、貯湯槽水温と外気温度検知器２１
より検知した外気温度T0℃から求まる第５図に
示すパフオーマンス曲線f1を式化した(3)を用いて
給湯加熱必要能力Qdを求める。 T 4 = (T 3 + T H )/2 ...(2) Next, the hot water tank water temperature and outside air temperature detector 21
The required hot water heating capacity Qd is determined using formula (3), which is a formula for the performance curve f 1 shown in FIG .
Qd＝f1（T4，T0） ……(3)
定格給湯加熱能力（kcal／ｈ）に対するインバ
ータ周波数（Hz）は第６図に示す関係にあり、上
記算出した給湯加熱必要能力Qdと関数f2を用い
て式(4)により、インバータ１７の運転周波数freq
を決定する。 Qd=f 1 (T 4 , T 0 ) ...(3) The inverter frequency (Hz) with respect to the rated hot water heating capacity (kcal/h) has the relationship shown in Figure 6, and the above calculated required hot water heating capacity Qd The operating frequency freq of the inverter 17 is determined by equation (4) using the function f2 .
Determine.
freq＝f2（Qd） ……(4)
この決定されたインバータの運転周波数freq
は、20〜30Hzの低周波数であり、この低周波数に
よる低回転数運動によれば、次のような理由によ
り、冷凍サイクルの運転効率が向上する。 freq=f 2 (Qd) ...(4) This determined operating frequency freq of the inverter
is a low frequency of 20 to 30Hz, and the low rotational speed motion due to this low frequency improves the operating efficiency of the refrigeration cycle for the following reasons.
すなわち、圧縮機１の回転数が低下すると、冷
媒流量が回転数に比例してリニアに減少するのに
対して、室内外の熱交換器の容量は一定であるた
めに、熱交換量（冷暖房能力）は、回転数の減少
に比例する程には低下せず、そのため冷凍サイク
ル効率は、回転数が低下するほど向上することに
なる。 In other words, when the rotational speed of the compressor 1 decreases, the refrigerant flow rate decreases linearly in proportion to the rotational speed, whereas the capacity of the indoor and outdoor heat exchangers is constant, so the amount of heat exchange (cooling and heating The refrigeration cycle efficiency (capacity) does not decrease in proportion to the decrease in rotational speed, and therefore the refrigeration cycle efficiency improves as the rotational speed decreases.
そして、インバータの運転周波数freqが上記算
出した範囲を外れた場合は、設定された低周波数
例えば20〜30Hzで運転する。また、上記給湯加熱
時間中に暖房負荷が発生すれば、一時的に給湯加
熱運転を中止して暖房運転を行なうが、暖房負荷
のない時間には再び給湯加熱運転を行ない、合計
では給湯加熱時間tpに達して貯湯槽７が沸き上が
る。 If the operating frequency freq of the inverter is out of the range calculated above, the inverter is operated at a set low frequency, for example, 20 to 30 Hz. In addition, if a heating load occurs during the hot water heating time mentioned above, the hot water heating operation is temporarily stopped and heating operation is performed, but the hot water heating operation is performed again during the time when there is no heating load, and the total hot water heating time is The water reaches tp and the hot water tank 7 starts to boil.
以上の各運転モードをフローチヤートで示すと
第７図のようになり、ステツプS1でモード選択
を行なつて冷房モードであれば、ステツプS2で
冷房運転を行なう。また暖房・給湯モードであれ
ばステツプS3に行き、暖房負荷の有無を判断し、
暖房負荷があればステツプS4で暖房運転を行な
う。 A flowchart of each of the above operation modes is shown in FIG. 7. If the mode is selected in step S1 and it is the cooling mode, cooling operation is performed in step S2. If the mode is heating/hot water supply mode, go to step S3, determine whether there is a heating load,
If there is a heating load, heating operation is performed in step S4.
ステツプS3で暖房負荷がなければ、ステツプ
S5に行き、貯湯槽温度が設定Th℃であるか否か
を判断し、設定値以上であれば、ステツプS3に
戻り、以下であればステツプS6に行き、ここで
予め設定された給湯加熱設定時間内であるか否か
を判断し、NOであればステツプS3に戻り、YES
であればステツプS7に行き、予め入力されてい
る貯湯槽容量（Vl）、貯湯槽上部容量（V1）、貯
湯槽上部水温（T1）、貯湯槽下部水温（T2）など
により、前記(1)式から貯湯槽水温（T3）を求め
る。 If there is no heating load in step S3, step
The process goes to S5, and it is determined whether the hot water storage tank temperature is at the set value Th°C. If it is above the set value, the process returns to step S3, and if it is below, the process goes to step S6, where the hot water heating setting is set in advance. Determine whether it is within the time, and if NO, return to step S3 and YES
If so, go to step S7 and use the previously input hot water tank capacity (Vl), hot water tank upper capacity (V 1 ), hot water tank upper water temperature (T 1 ), hot water tank lower water temperature (T 2 ), etc. Calculate the hot water tank water temperature (T 3 ) from equation (1).
次にステツプS8では沸き上げ水温（TH）まで
の平均水温（T4）を前記(2)式から求める。 Next, in step S8, the average water temperature (T 4 ) up to the boiling water temperature (T H ) is determined from the above equation (2).
そして、次にステツプS9では貯湯槽水温（T3）
と外気温度（T0）から求まる第５図に示すパフ
オーマンス曲線f1を用いて、給湯加熱必要能力
（Qd）を前記(3)式より求める。 Then, in step S9, the water temperature of the hot water tank (T 3 ) is determined.
Using the performance curve f 1 shown in FIG. 5 , which is determined from
この給湯加熱必要能力Qdを用い、ステツプS10
において前記(4)式よりインバータの運転周波数
freqを決定する。 Using this required hot water heating capacity Qd, step S10
From equation (4) above, the operating frequency of the inverter is
Determine freq.
なお、第３図では室内熱交換器を２台とした
が、これは３台以上でも適用できることは言うま
でもない。また、三方弁１１の代わりに２個の二
方弁で同一動作を行なわせてもよく、三方弁１１
は流量調節可能な電動弁としてもよい。このよう
に給湯加熱運転をインバータ１７の低周波数で行
なうようにしたので、効率がよく、また給湯加熱
運転で生ずる電力負荷のピーク値を抑えることが
できる。 In addition, in FIG. 3, two indoor heat exchangers are used, but it goes without saying that three or more indoor heat exchangers can be used. Further, instead of the three-way valve 11, two two-way valves may be used to perform the same operation, and the three-way valve 11 may be used to perform the same operation.
may be an electric valve that can adjust the flow rate. Since the hot water supply heating operation is performed at the low frequency of the inverter 17 in this manner, efficiency is high and the peak value of the electric power load that occurs during the hot water supply heating operation can be suppressed.
以上のように、この発明によれば、圧縮機１、
冷暖房切換用の四方弁２、室内熱交換器３ａ，３
ｂ、膨張弁４および室外熱交換器５、貯湯槽７、
加熱コイル８を有する冷暖房用ヒートポンプ装置
の圧縮機１の吐出口に三方弁１１を設け、この三
方弁１１の分岐ｃより貯湯槽加熱コイル８から分
岐点１３と第１電磁弁１４を経て膨張弁４と室内
熱交換器３ａ，３ｂの間に至る配管１２と、分岐
点１３と第２電磁弁１６を経て膨張弁４と室外熱
交換器５の間に至る配管１５と、暖房時に暖房運
転を第１優先モードとしながら所定の設定時間圧
縮機１の回転数を変えて低周波数で運転するイン
バータとを備えたので、冷暖房と給湯とを効率よ
く、同時に行なうことができると共に冷房時の廃
熱を回収して貯湯槽７内の水を加熱できる冷暖
房・給湯ヒートポンプ装置を提供することができ
る。
As described above, according to the present invention, the compressor 1,
Four-way valve 2 for switching between air conditioning and heating, indoor heat exchanger 3a, 3
b, expansion valve 4 and outdoor heat exchanger 5, hot water storage tank 7,
A three-way valve 11 is provided at the discharge port of the compressor 1 of a heat pump device for cooling and heating having a heating coil 8, and a branch c of the three-way valve 11 connects the hot water storage tank heating coil 8 to a branch point 13 and a first electromagnetic valve 14 to an expansion valve. 4 and the indoor heat exchangers 3a, 3b, and a pipe 15 that passes between the expansion valve 4 and the outdoor heat exchanger 5 via the branch point 13 and the second solenoid valve 16, Since it is equipped with an inverter that operates at a low frequency by changing the rotation speed of the compressor 1 for a predetermined set time while using the first priority mode, it is possible to efficiently perform heating, cooling, and hot water supply at the same time, as well as waste heat during cooling. It is possible to provide an air conditioning/hot water supply heat pump device that can recover water and heat the water in the hot water storage tank 7.
第１図は従来の冷暖房ヒートポンプ装置の一例
を示す構成図、第２図は従来の冷暖房・給湯ヒー
トポンプ装置の一例を示す構成図、第３図はこの
発明の一実施例による冷暖房・給湯ヒートポンプ
装置を示す構成図、第４図は一般住宅における暖
房負荷発生パターンの時間的変化を示す説明図
（縦軸は暖房負荷［kcal／ｈ］、横軸は時刻）、第
５図は給湯加熱パフオーマンス曲線を示す説明図
（縦軸は給湯加熱能力［kcal／ｈ］、横軸は貯湯槽
水温［℃］）、第６図はインバータ周波数の定格加
熱能力に対する関係図（縦軸は周波数［Hz］、横
軸は加熱能力［kcal／ｈ］、第７図はこの発明の
一実施例による冷暖房・給湯ヒートポンプ装置の
各運転モードの動作順位をフローチヤートで示し
た説明図である。
１……圧縮機、２，４，６ａ，１１，１４，１
６……弁、３，３ａ，３ｂ，５……熱交換器、７
……槽、８……加熱コイル、ａ，ｂ，ｃ，１３…
…分岐、１２，１５……菅、１７……インバー
タ。なお、図中同一符号は同一または相当部分を
示す。
FIG. 1 is a block diagram showing an example of a conventional heating/cooling heat pump device, FIG. 2 is a block diagram showing an example of a conventional heat pump device for heating/cooling/hot water supply, and FIG. 3 is a heat pump device for heating/cooling/hot water supply according to an embodiment of the present invention. Fig. 4 is an explanatory diagram showing temporal changes in the heating load generation pattern in a general house (vertical axis is heating load [kcal/h], horizontal axis is time), Fig. 5 is a hot water heating performance curve (The vertical axis is hot water heating capacity [kcal/h], the horizontal axis is hot water tank water temperature [℃]), and Figure 6 is a diagram showing the relationship between the inverter frequency and the rated heating capacity (the vertical axis is frequency [Hz], The horizontal axis is heating capacity [kcal/h], and FIG. 7 is an explanatory flowchart showing the order of operation of each operation mode of an air conditioning/hot water heat pump device according to an embodiment of the present invention. 1...Compressor , 2, 4, 6a, 11, 14, 1
6... Valve, 3, 3a, 3b, 5... Heat exchanger, 7
...Tank, 8...Heating coil, a, b, c, 13...
...branch, 12, 15...tube, 17...inverter. Note that the same reference numerals in the figures indicate the same or corresponding parts.
Claims (1)
器、膨張弁、室外熱交換器、貯湯槽、前記貯湯槽
の加熱コイルを有する冷暖房・給湯ヒートポンプ
装置において、前記圧縮機の吐出口に三方弁を設
け、この三方弁の一方の分岐ｂを前記四方弁に接
続するとともに、他方の分岐ｃより前記貯湯槽の
前記加熱コイルから第１の電磁弁を経て膨張弁と
前記室内熱交換器の間に至る配管と、前記加熱コ
イルと前記第１の電磁弁との間の分岐部より第２
の電磁弁を経て前記膨張弁と前記室外熱交換器の
間に至る配管とを設け、さらに暖房・給湯加熱運
転時に暖房運転を第１優先モードとしながら所定
の設定時間、前記圧縮機の回転数を変えて低周波
数で給湯加熱運転するインバータを備えてなる冷
暖房・給湯ヒートポンプ装置。1. In an air conditioning/hot water supply heat pump device having a compressor, a four-way valve for switching between air conditioning and heating, an indoor heat exchanger, an expansion valve, an outdoor heat exchanger, a hot water storage tank, and a heating coil for the hot water storage tank, the discharge port of the compressor has a three-way One branch b of the three-way valve is connected to the four-way valve, and the other branch c connects the heating coil of the hot water storage tank to the expansion valve and the indoor heat exchanger via the first electromagnetic valve. a second pipe from a branch part between the heating coil and the first solenoid valve;
A piping is provided between the expansion valve and the outdoor heat exchanger via a solenoid valve, and the rotation speed of the compressor is controlled for a predetermined set time while the heating operation is set as the first priority mode during heating/hot water heating operation. A heating/cooling/hot water heat pump device equipped with an inverter that heats and heats water at a low frequency.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59099188A JPS60240969A (en) | 1984-05-15 | 1984-05-15 | Air-conditioning-hot-water supply heat pump device |
| KR1019850000646A KR900000809B1 (en) | 1984-02-09 | 1985-02-01 | Room-warming/cooling and hot-water supplying heat-pump apparatus |
| US06/699,128 US4592206A (en) | 1984-02-09 | 1985-02-07 | Room-warming/cooling and hot-water supplying heat-pump apparatus |
| EP85101360A EP0151493B1 (en) | 1984-02-09 | 1985-02-08 | Room-warming/cooling and hot-water supplying heat pump apparatus |
| DE8585101360T DE3562666D1 (en) | 1984-02-09 | 1985-02-08 | Room-warming/cooling and hot-water supplying heat pump apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59099188A JPS60240969A (en) | 1984-05-15 | 1984-05-15 | Air-conditioning-hot-water supply heat pump device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60240969A JPS60240969A (en) | 1985-11-29 |
| JPH0333987B2 true JPH0333987B2 (en) | 1991-05-21 |
Family
ID=14240670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59099188A Granted JPS60240969A (en) | 1984-02-09 | 1984-05-15 | Air-conditioning-hot-water supply heat pump device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60240969A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018189942A1 (en) * | 2017-04-11 | 2018-10-18 | 日立ジョンソンコントロールズ空調株式会社 | Air conditioner |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6083222B2 (en) * | 2012-12-07 | 2017-02-22 | ダイキン工業株式会社 | controller |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5815792Y2 (en) * | 1976-06-16 | 1983-03-30 | 松下電器産業株式会社 | cold storage device |
| JPS5934936B2 (en) * | 1976-10-12 | 1984-08-25 | 松下電器産業株式会社 | heat source device |
| JPS55143364A (en) * | 1979-04-24 | 1980-11-08 | Matsushita Seiko Kk | Equipment for cooling* heating and hot water supply |
| JPS55155134A (en) * | 1979-05-21 | 1980-12-03 | Toshiba Corp | Air conditioner |
| JPS597359U (en) * | 1982-07-07 | 1984-01-18 | 三菱重工業株式会社 | Air conditioning/heating water heater |
| JPS5956648A (en) * | 1983-06-06 | 1984-04-02 | Hitachi Ltd | Air conditioner |
-
1984
- 1984-05-15 JP JP59099188A patent/JPS60240969A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018189942A1 (en) * | 2017-04-11 | 2018-10-18 | 日立ジョンソンコントロールズ空調株式会社 | Air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60240969A (en) | 1985-11-29 |
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