JPH02169968A - Heat pump type room cooler/heater hot water supply apparatus - Google Patents
Heat pump type room cooler/heater hot water supply apparatusInfo
- Publication number
- JPH02169968A JPH02169968A JP32277288A JP32277288A JPH02169968A JP H02169968 A JPH02169968 A JP H02169968A JP 32277288 A JP32277288 A JP 32277288A JP 32277288 A JP32277288 A JP 32277288A JP H02169968 A JPH02169968 A JP H02169968A
- Authority
- JP
- Japan
- Prior art keywords
- hot water
- water supply
- valve
- electromagnetic
- heating
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 137
- 239000003507 refrigerant Substances 0.000 claims abstract description 60
- 238000010438 heat treatment Methods 0.000 claims abstract description 52
- 238000001816 cooling Methods 0.000 claims abstract description 41
- 238000004378 air conditioning Methods 0.000 claims description 21
- 238000011144 upstream manufacturing Methods 0.000 abstract description 2
- 238000010276 construction Methods 0.000 abstract 2
- 238000010586 diagram Methods 0.000 description 5
- 230000007423 decrease Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005057 refrigeration Methods 0.000 description 3
- 239000008400 supply water Substances 0.000 description 3
- 230000005494 condensation Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000008236 heating water Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
Landscapes
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
Description
この発明は、冷房、暖房、冷房給湯、［房給湯および給
湯運転を行えるようにしたヒートポンプ式冷暖房給湯装
置に関するものである。The present invention relates to a heat pump type air-conditioning/heating/water supply device capable of performing air conditioning, heating, air conditioning/hot water supply, room hot water supply, and hot water supply operations.
【従来の技術］
近年、ヒートポンプ技術の向上に伴い、冷房。
＋ＩＪｊ房のみではなく、これらに加えて給湯も行う、
と−トポンプ式冷暖房給湯装置の提案が増加している。
これらは、給湯のみの運転の他に、冷房運転の冷媒の凝
縮排熱を利用する経済的な運転を行うものが多数提案さ
れている。
第７図は、例えば実開昭６１−２０３２６８号公報に示
された従来のヒートポンプ式冷暖房給湯装置の冷媒回路
構成図である。第７図にわいて、１は圧縮機、３は四方
切換弁、４は室外熱交換器、５Ａ、５Ｂは絞り装置、６
は室内熱交換器、８はアキュムレータ、１０は給湯用熱
交換器、３０゜３１．３２，３３，３４および３５は電
磁開閉弁、１５．３６，３７は逆止弁であり、以上の各
部材を接続してヒートポンプ冷媒回路を構成している。
また、１７．１８は給湯用水用管路、２１は給湯口であ
る。
次に、以上の構成のヒートポンプ式冷暖房給湯装置の冷
媒回路の各運転モード時の動作について説明する。
冷房運転時は、電磁開閉弁３０，３２を開、電磁開閉弁
３１，３３，３４，３５を閉として運転する。暖房運転
時は、電磁開閉弁３０，３２．３４を開、電磁開閉弁３
１，３３，３５を閉として運転する。また、冬期の給湯
運転時は電磁開閉弁３１．３２．３４を開、電磁開閉弁
３０，３３゜３５を閉として運転し、夏期の給湯運転時
は電磁開閉弁３３，３４，３５を開、電磁開閉弁３０゜
３１．３２を閉として運転する。さらに、冷房給湯運転
時は電磁開閉弁３０，３３を開、電磁開閉弁３１，３２
，３４，３５を閉として運転し、暖房給湯運転時は電磁
開閉弁３０，３１，３２，３４を開、電磁開閉弁３３．
３５を閉として運転する。
上記のようにして、冷房、暖房、給湯の各運転と、冷房
と給湯とを同時に行う冷房給湯運転および暖房と給湯と
を行う暖房給湯運転とを行うものである。これらの運転
時において、四方切換弁３はそれぞれの運転モードに対
応した冷媒の流れを構成するように切り換える。
【発明が解決しようとする課１！［１
従来のヒートポンプ式冷暖房給湯装置は、以上のように
構成されているので、冷房、暖房２給湯。
冷房給湯、＠房給湯の各運転が電磁開閉弁の開閉と四方
切換弁の切り換えとによって一応可能であるが、多数の
電磁開閉弁を用いているため、冷媒回路の構成が複雑に
なるとともに、制御も複雑となり、冷凍サイクルの信頼
性が低いという問題点があった。また、冷媒回路に多く
の電磁開閉弁を設けると、これらが流路抵抗となり冷凍
サイクルの性能低下を来すので、エネルギ効率上好まし
くない。そして、流路抵抗による損失を低減するために
、口径の大きな電磁開閉弁を用いると、高価な装置にな
り、しかも上記のような回路部品からの放熱が大きくな
り、性能を低下させ、電磁開閉弁の電気入力も大きくな
９、ランニングコストも高くなるという問題点が発生す
る。さらに従来のヒートポンプ式冷暖房給湯装置では、
冷房給湯運転時に給湯用熱交換器のみを凝縮器として使
用するため、給湯温度や出湯量によって冷房能力が変わ
り、冷房負荷と給湯負荷との整合（マツチング）がとれ
ず、冷房能力の不足、ａｍ圧力の上昇によって圧縮機に
過大な負荷がかかる運転が発生するという問題点もあっ
た。
この発明は上記のような問題点を解決するためニナされ
たもので、冷房、暖房および給湯のそれぞれの機能を満
足させる運転ができ、冷房給湯。
暖房給湯も良好な運転状態で行うことができ、さらに冷
媒回路の構成を簡素にできるヒートポンプ式冷暖房給湯
装置を得ることを目的とするものである。
【！Ｉ！題を解決するための手段】
この発明に係るヒートポンプ式冷暖房給湯装置は、圧Ｉ
Ｉ機の吐出口と四方切換弁との間の冷媒回路に第１の電
磁開閉弁を設け、圧縮機の吐出口と第１の電磁開閉弁と
の間で冷媒回路から分岐された第２の電磁開閉弁を設け
た分岐回路に給湯用熱交換器を接続し、第１．第２の電
磁開閉弁の開閉および四方切換弁の切９換えにより、冷
房、暖房。
給湯２冷房給湯２暖房給湯の各運転を行うようにしたも
のである。[Conventional technology] In recent years, with the improvement of heat pump technology, air conditioning. +In addition to IJJ cells, we also supply hot water.
Proposals for pump-type air-conditioning, heating, and water-heating systems are increasing. Many of these have been proposed to perform economical operation by utilizing condensed waste heat of refrigerant during cooling operation, in addition to operation for only supplying hot water. FIG. 7 is a refrigerant circuit configuration diagram of a conventional heat pump type air-conditioning/heating/water supply device disclosed in, for example, Japanese Utility Model Application Publication No. 61-203268. In Fig. 7, 1 is a compressor, 3 is a four-way switching valve, 4 is an outdoor heat exchanger, 5A and 5B are throttling devices, and 6
8 is an indoor heat exchanger, 8 is an accumulator, 10 is a hot water supply heat exchanger, 30° 31. 32, 33, 34 and 35 are electromagnetic shut-off valves, 15, 36, 37 are check valves, and each of the above members are connected to form a heat pump refrigerant circuit. Further, 17 and 18 are water supply pipes, and 21 is a hot water supply port. Next, the operation of the refrigerant circuit of the heat pump type air-conditioning/heating/water supply apparatus having the above configuration in each operation mode will be explained. During cooling operation, the electromagnetic on-off valves 30 and 32 are opened and the electromagnetic on-off valves 31, 33, 34 and 35 are closed. During heating operation, open the solenoid on-off valves 30, 32, 34, and close the solenoid on-off valve 3.
Operate with 1, 33, and 35 closed. In addition, during hot water supply operation in the winter, the electromagnetic on-off valves 31, 32, and 34 are opened and the electromagnetic on-off valves 30, 33, 35 are closed, and during hot water supply operation in the summer, the electromagnetic on-off valves 33, 34, and 35 are opened. Operate with the electromagnetic on-off valve 30°31.32 closed. Furthermore, during cooling hot water supply operation, the electromagnetic on-off valves 30 and 33 are opened, and the electromagnetic on-off valves 31 and 32 are opened.
, 34, and 35 are closed, and during heating and hot water supply operation, the electromagnetic on-off valves 30, 31, 32, and 34 are opened, and the electromagnetic on-off valves 33.
Operate with 35 closed. As described above, the cooling, heating, and hot water supply operations, the cooling hot water supply operation that simultaneously performs cooling and hot water supply, and the heating hot water supply operation that performs heating and hot water supply are performed. During these operations, the four-way switching valve 3 switches to configure the refrigerant flow corresponding to each operation mode. [Question 1 that the invention attempts to solve! [1. Conventional heat pump type air conditioning/heating/hot water supply equipment is configured as described above, so it has two hot water supply systems: cooling and heating. Although cooling hot water supply and hot water supply operations are possible by opening and closing the electromagnetic on-off valve and switching the four-way switching valve, the use of a large number of electromagnetic on-off valves complicates the configuration of the refrigerant circuit. There was a problem that the control was complicated and the reliability of the refrigeration cycle was low. Further, if a large number of electromagnetic on-off valves are provided in the refrigerant circuit, these act as flow path resistance and cause a decrease in the performance of the refrigeration cycle, which is not preferable in terms of energy efficiency. If a large-diameter electromagnetic shut-off valve is used to reduce loss due to flow path resistance, it becomes an expensive device, and heat radiation from the circuit components described above increases, reducing performance and causing electromagnetic shut-off valves. Problems arise in that the electrical input to the valve is also large9 and the running cost is also high. Furthermore, with conventional heat pump type air conditioning and water heating systems,
During cooling hot water supply operation, only the heat exchanger for hot water supply is used as a condenser, so the cooling capacity changes depending on the hot water temperature and amount of hot water, making it impossible to match the cooling load with the hot water supply load, resulting in insufficient cooling capacity, am There was also the problem that the compressor would be operated under an excessive load due to the increase in pressure. This invention was developed to solve the above-mentioned problems, and is capable of operation that satisfies each of the functions of cooling, heating, and hot water supply. It is an object of the present invention to provide a heat pump type air-conditioning/heating-water supply device which can perform heating/hot-water supply in a good operating state and can further simplify the configuration of a refrigerant circuit. [! I! Means for Solving the Problem] A heat pump type air-conditioning/heating water supply device according to the present invention has a pressure I
A first electromagnetic on-off valve is provided in the refrigerant circuit between the outlet of the I machine and the four-way switching valve, and a second electromagnetic on-off valve branched from the refrigerant circuit is provided between the outlet of the compressor and the first electromagnetic on-off valve. A hot water heat exchanger is connected to a branch circuit equipped with an electromagnetic on-off valve, and the first. Cooling and heating by opening and closing the second electromagnetic on-off valve and switching the four-way switching valve. Each operation of hot water supply, cooling hot water supply, and heating hot water supply is performed.
この発明におけるヒートポンプ式冷暖房給湯装置は、上
記の各運転を従来のもののように多数の電磁開閉弁を用
いることなく、２つの電磁開閉弁によって行うことがで
き、冷媒回路が簡素となり、また冷媒回路の流路抵抗が
減少するとともに電磁開閉弁への電気入力が減少し、さ
らに重量が軽減し小形化ができろ。The heat pump type air-conditioning and hot water supply system of the present invention can perform each of the above-mentioned operations using two electromagnetic on-off valves instead of using a large number of electromagnetic on-off valves unlike conventional ones, and the refrigerant circuit is simple. This reduces the flow path resistance and reduces the electrical input to the electromagnetic on-off valve, further reducing weight and making it more compact.
以下、この発明の一実施例を第１図ないし第６図につい
て説明する。
第１図はこの発明の一実施例によるヒートポンプ式冷暖
房給湯装置の冷媒回路の構成図である。
第１図において、１は圧縮機、３は四方切換弁、４は室
外熱交換器、５は絞り装置、６は室内熱交換器、８はア
キュムレータ、１ｏは給湯用熱交換器であり、これらを
主な構成要素としてヒートポンプ冷媒回路を構成してい
る。圧縮機１の吐出口と四方切換弁３の入口との間を接
続する冷媒回路の吐出冷媒配管７に第１の電磁開閉弁２
を設けてあり、吐出冷媒配管７の圧縮機１吐出口と第１
の電磁開閉弁２との間から分岐回路を形成する給湯用冷
媒配管２９が設けられ、この冷媒配管２９には第２の電
磁開閉弁９、給湯用熱交換器１０および逆止弁１５がこ
の順に冷媒上流側から下流側に向って設けてあり、冷媒
配管２９の下流端を絞り装ｗ５の一端に接続させである
。絞り装Ｍ５は、一端を室外熱交換器４および室内熱交
換器６と逆止弁１１および１２を介して接続してあり、
他端・湯用水回路は、給湯クンク１９と給湯用熱交換器
１０の入口側がポンプ１６を有するＷ路１７で接続して
あり、給湯用熱交換器１０の出口側が電路１８で給湯ク
ンク１９と接続してあり、給湯タンク１９には給水管２
０および給湯口２１も接続しである。さらに制御系はリ
モートコントローラ２２、これに信号線２５で接続した
室内ユニット４１のコントローラ２３、このコントロー
ラ２３と信号線２６で接続した室外ユニット４２のコン
トローラ２４、およびコントローラ２４に信号線２７で
接続した温度検出器２８を有し、この検出器２８は貯湯
タンク１９内の水温を検出するものである。そして、リ
モートコントローラ２２により冷暖房、給湯運転を制御
する信号を信号線２５を用いてコントローラ２３に送り
、これで室内ユニット４１を制御し、また信号線２６を
用いてコントローラ２４にも送り室外ユニット４２も制
御する。温度検出器２８で検出した貯湯タンク１９内の
水温検出信号を信号線２７を用いてコントローラ２４に
送ることｔでも室外ユニット４２を制御する。さらに、
コントローラ２４によって室外ユニ：ｙ Ｉ−４２側の
他の入力信号を受信し、圧縮機１、四方切換弁３、第１
．第２電磁開閉弁２，９などの刷部信号を出力し、同様
にコントローラ２３によって室内ユニット４１側の入出
力制御を行うように構成しである。
上述した構成の冷媒回路では、第１．第２の電磁開閉弁
２，９の開閉および四方切換弁、３の切り換えによって
、冷房、冷房給湯、暖房、暖房給湯、および給湯の各運
転を行う。
第２図によって冷房運転を説明する。この運転時には、
第１の電磁開閉弁２を開とし、第２の電磁開閉弁９を閉
として圧縮機１の運転を行う。これの吐出冷媒は第２図
の矢印に示すように、圧縮機１−第１の電磁開閉弁２→
四方切換弁３−室外熱交換器４−逆止弁１１−絞り装置
５−逆止弁１４−室内熱交換器６→四方切換弁３−圧縮
機１の経路で循環する。この運転時には、第２の電磁開
閉弁９が閉じているので、通常のビー１−ポンプ式冷暖
房装置の冷房運転と同様な動作をする。
次に、冷房給湯運転について説明する。この運転時は、
貯湯タンク１９の１温度検出器２８から給湯負荷の発生
が室外ユニット４２のコントローラ２４に入力さね、ま
た室内側からも冷房負荷の発。
生が入力されている場合であり、上述した冷房運転状態
で第２の電磁開閉弁９を開く。また、ポンプ１６を駆動
させ、貯湯タンク１９と給湯用熱交換Ｈｉｏとの間で給
湯水を循環させる。圧縮機１の運転により、吐出冷媒は
第３図の矢印に示すように、冷房運転時と同様に室外熱
交換器４に流れるものと、圧縮機１→第２の電磁開閉弁
９呻給湯用熱交換器１〇−逆止弁１５の順に流れるもの
とに分流され、これらの冷媒が逆上弁１１．１５の下流
で合流され、以後は冷房運転時と同様の流れになる。こ
の運転により給湯用熱交換器１５で冷媒によって給湯循
環水を加熱するが、給湯循環水の温度は給湯負荷の発生
パターンによって多様である。すなオ）ち、給湯循環水
の温度が低い時は、給湯用熱交換器１０の凝縮温度が低
くなるため、圧力が低く、冷媒は給湯用熱交換器１０に
主に流れ、圧縮ｔ＊ ｉが低負荷状態で冷房しながら貯
湯タンク内の給湯水を加熱して行く。貯湯タンク内の給
湯水の温度上昇に伴い、冷媒の凝縮温度も上昇するが、
この状態になると給湯用熱交換器１０の凝縮能力が低下
し、冷媒は室外熱交換器４に主に流れるようになる。こ
の場合には、貯湯タンク内の給湯水の温度が上昇してお
り、これを急速に加熱する必要がなく、この運転を続け
ることにより冷房しながら貯湯タンク内の給湯水を所定
温度に加熱することができる。給湯水が所定温度に達す
ると、温度検出譬の入力によって第２の電磁開閉弁９を
閉じ、ポンプも停止し、冷房運転に移行する。すなわち
、第２の電磁開閉弁９の開閉により、圧縮機１の運転を
続けながら、冷房運転と冷房給湯運転とを切り換えるこ
とができる。
第４図によって暖房運転を説明する。この運転時には、
第１の電磁開閉弁２を開とし、第２の電磁ｒＩｌｉ閉弁
９を閉とし、四方切換弁３を切り換え冷媒の流れを冷房
運転時と逆になるようにして圧縮機１を運転する。これ
の吐出冷媒は、第４図の矢印に示すように、圧縮機１→
第１の電磁開閉弁２−四方切換弁３−室内熱交換器６−
逆止弁１２−絞り装Ｎ５→逆止弁１３−室外熱交換器４
−四方切換弁３−圧縮機１の経路で循環し、通常のヒト
ポンプ式冷暖房装置の暖房運転と同様な動作をする。
次に、暖房給湯運転について説明する。この運転時は、
給湯負荷と暖房負荷とが発生している場合であゆ、上述
した暖房運転状態で、第２の電磁開閉弁９を開いて行う
。圧縮機１の運転により、吐出冷媒は第５図の矢印に示
すように暖房運転時と同様に室内熱交換器６に流れるも
のと、給湯用熱交換器１０に流れるものとに分流され、
これらの冷媒が逆止弁１２．１５の下流で合流され、以
後は暖房運転時と同様の流れになる。
さらに、第６図によって給湯運転を説明する。
この運転時は、第１の電磁開閉々閉じ、第２のｍｍ開閉
弁９を閉じて運転を行い、この場合１こはポンプを駆動
させ、貯湯タンクと給湯用熱交換器１０との間で給湯水
を循環させる。圧縮機１の運転によ吟、吐出冷媒は第６
図の矢印に示すように、給湯用熱交換器１０、絞り装Ｍ
５および室外熱交換器４を通って循環する。そして、第
１の電ｕ１開閉弁２の開閉によって、第２の電磁開閉弁
９が開いているため、給湯運転と暖房給湯運転とを圧縮
機１の運転を続けながら行うことができる。
従って、暖房給湯運転中に暖房負荷が増大した場合には
、−時的に第２の電磁開閉弁９を閉じ、給湯運転機能を
停止して暖房能力を大きくしたり、暖房給湯運転中に出
湯によって給湯負荷が増大した場合には、−時的に第１
の電磁開閉弁２を閉じ、給湯能力を増加させたりする運
転を行うことができる。これらの運転は室内側暖房負荷
信号および貯湯タンク内の給湯水の温度信号に基づいて
刷部するものである。また、冷房運転中あるいは暖房運
転中は、第２の電磁開閉弁９が閉じ給湯用熱交換ｖｓ１
０が動作しないため、この熱交換器１ｏへの冷媒の流入
、寝込みがなく、給湯運転中は室内熱交換＠６が低圧側
となるため、この熱交換器６への冷媒の流入、寝込みが
なく、運転中に冷媒の過不足を生じろことがなく、安定
した運転ができる。さらに冷房給湯運転中に、凝縮器側
となる室外熱交換器４および給湯用熱交換器１０の冷媒
の流れは、循環する給湯水の温度が低い場合には、給湯
用熱交換器１０の能力が支配的となって給湯能力を大き
くでき、給湯水の温度が上昇して来ると給湯用熱交換器
１０の凝縮能力が減少するため、室外熱交換器４の能力
が支配的となり、従って給湯用熱交換器１０、室外熱交
換器４への冷媒の流れが自動的に調整され、冷房能力が
変化することなく運転できろ。An embodiment of the present invention will be described below with reference to FIGS. 1 to 6. FIG. 1 is a configuration diagram of a refrigerant circuit of a heat pump type air-conditioning/heating/water supply apparatus according to an embodiment of the present invention. In Fig. 1, 1 is a compressor, 3 is a four-way switching valve, 4 is an outdoor heat exchanger, 5 is a throttle device, 6 is an indoor heat exchanger, 8 is an accumulator, and 1o is a hot water supply heat exchanger. The heat pump refrigerant circuit is made up of the following main components: A first electromagnetic on-off valve 2 is installed in the discharge refrigerant pipe 7 of the refrigerant circuit connecting between the discharge port of the compressor 1 and the inlet of the four-way switching valve 3.
The compressor 1 discharge port of the discharge refrigerant pipe 7 and the first
A refrigerant pipe 29 for hot water supply forming a branch circuit between the electromagnetic on-off valve 2 and the second electromagnetic on-off valve 9, a heat exchanger 10 for hot water supply, and a check valve 15 is provided in this refrigerant pipe 29. They are provided in order from the refrigerant upstream side to the downstream side, and the downstream end of the refrigerant pipe 29 is connected to one end of the throttle device w5. The throttle device M5 has one end connected to the outdoor heat exchanger 4 and the indoor heat exchanger 6 via check valves 11 and 12,
The other end of the hot water circuit is such that the inlet side of the hot water supply heat exchanger 10 and the hot water supply heat exchanger 10 are connected by a W path 17 having a pump 16, and the outlet side of the hot water supply heat exchanger 10 is connected to the hot water supply chain 19 through an electric line 18. The water supply pipe 2 is connected to the hot water tank 19.
0 and the hot water supply port 21 are also connected. Furthermore, the control system includes a remote controller 22, a controller 23 of the indoor unit 41 connected to this by a signal line 25, a controller 24 of the outdoor unit 42 connected to this controller 23 by a signal line 26, and a signal line 27 connected to the controller 24. A temperature detector 28 is provided, and this detector 28 detects the water temperature in the hot water storage tank 19. Then, the remote controller 22 sends a signal to control the air conditioning, heating, and hot water supply operation to the controller 23 using the signal line 25, which controls the indoor unit 41, and also sends it to the controller 24 using the signal line 26 to the outdoor unit 42. also control. The outdoor unit 42 is also controlled by sending a water temperature detection signal in the hot water storage tank 19 detected by the temperature detector 28 to the controller 24 using the signal line 27. moreover,
The controller 24 receives other input signals from the outdoor unit y I-42 side, and controls the compressor 1, four-way switching valve 3, and the first
．． It is configured to output printing unit signals such as the second electromagnetic on-off valves 2 and 9, and similarly perform input/output control on the indoor unit 41 side by the controller 23. In the refrigerant circuit configured as described above, the first. By opening and closing the second electromagnetic on-off valves 2 and 9 and switching the four-way switching valve 3, cooling, cooling hot water supply, heating, heating hot water supply, and hot water supply operations are performed. The cooling operation will be explained with reference to FIG. During this drive,
The compressor 1 is operated with the first electromagnetic on-off valve 2 open and the second electromagnetic on-off valve 9 closed. The refrigerant discharged from this is as shown by the arrow in Fig. 2: compressor 1 - first electromagnetic on-off valve 2 ->
It circulates through the four-way switching valve 3 - outdoor heat exchanger 4 - check valve 11 - throttling device 5 - check valve 14 - indoor heat exchanger 6 -> four-way switching valve 3 - compressor 1. During this operation, since the second electromagnetic on-off valve 9 is closed, the operation is similar to the cooling operation of a normal B1-pump air conditioning system. Next, the cooling hot water supply operation will be explained. When driving this way,
The generation of hot water supply load is input from the first temperature detector 28 of the hot water storage tank 19 to the controller 24 of the outdoor unit 42, and the cooling load is also generated from the indoor side. In this case, the second electromagnetic on-off valve 9 is opened in the above-mentioned cooling operation state. In addition, the pump 16 is driven to circulate hot water between the hot water storage tank 19 and the hot water heat exchanger Hio. As the compressor 1 operates, the discharged refrigerant flows into the outdoor heat exchanger 4 as in the case of cooling operation, as shown by the arrow in Fig. 3, and the compressor 1 → the second electromagnetic on-off valve 9 for hot water supply. The refrigerant flows in the order of the heat exchanger 10 and the check valve 15, and these refrigerants are combined downstream of the reversal valve 11.15, and thereafter flow in the same manner as during cooling operation. Through this operation, the hot water supply circulating water is heated by the refrigerant in the hot water supply heat exchanger 15, and the temperature of the hot water circulating water varies depending on the generation pattern of the hot water supply load. In other words, when the temperature of the hot water supply circulating water is low, the condensation temperature of the hot water supply heat exchanger 10 is low, so the pressure is low, and the refrigerant mainly flows to the hot water supply heat exchanger 10, compressing t* i heats the hot water in the hot water storage tank while cooling the air conditioner in a low load state. As the temperature of hot water in the hot water storage tank increases, the condensation temperature of the refrigerant also increases.
In this state, the condensing capacity of the hot water supply heat exchanger 10 decreases, and the refrigerant mainly flows to the outdoor heat exchanger 4. In this case, the temperature of the hot water supply in the hot water storage tank has risen, and there is no need to rapidly heat it, and by continuing this operation, the hot water supply water in the hot water storage tank is heated to a predetermined temperature while cooling. be able to. When the hot water reaches a predetermined temperature, the second electromagnetic on-off valve 9 is closed in response to the temperature detection input, the pump is also stopped, and the cooling operation is started. That is, by opening and closing the second electromagnetic on-off valve 9, it is possible to switch between the cooling operation and the cooling hot water supply operation while continuing the operation of the compressor 1. The heating operation will be explained with reference to FIG. During this drive,
The compressor 1 is operated by opening the first electromagnetic on-off valve 2, closing the second electromagnetic rIli closing valve 9, and switching the four-way switching valve 3 to reverse the flow of refrigerant to that during cooling operation. The refrigerant discharged from the compressor 1 →
First electromagnetic on-off valve 2 - Four-way switching valve 3 - Indoor heat exchanger 6 -
Check valve 12 - Restrictor N5 → Check valve 13 - Outdoor heat exchanger 4
It circulates through the four-way switching valve 3-compressor 1 path, and operates in the same way as the heating operation of a normal human pump type air-conditioning system. Next, the heating and hot water supply operation will be explained. When driving this way,
When a hot water supply load and a heating load are occurring, the second electromagnetic on-off valve 9 is opened in the above-mentioned heating operation state. By the operation of the compressor 1, the discharged refrigerant is divided into two parts: one that flows to the indoor heat exchanger 6 and the other that flows to the hot water supply heat exchanger 10, as in the heating operation, as shown by the arrows in FIG.
These refrigerants are combined downstream of the check valve 12.15, and thereafter flow in the same manner as during heating operation. Furthermore, the hot water supply operation will be explained with reference to FIG. During this operation, the first electromagnetic switch is closed and the second mm switch valve 9 is closed. Circulate hot water. Based on the operation of compressor 1, the discharge refrigerant is
As shown by the arrow in the figure, the hot water supply heat exchanger 10, the diaphragm M
5 and the outdoor heat exchanger 4. Since the second electromagnetic on-off valve 9 is opened by opening and closing the first electric u1 on-off valve 2, hot water supply operation and heating hot water supply operation can be performed while the compressor 1 continues to operate. Therefore, if the heating load increases during the heating hot water supply operation, the second electromagnetic on-off valve 9 may be temporarily closed, the hot water supply operation function may be stopped, and the heating capacity may be increased, or hot water may be tapped during the heating hot water supply operation. If the hot water supply load increases due to
It is possible to perform an operation in which the electromagnetic on-off valve 2 is closed and the hot water supply capacity is increased. These operations are performed based on the indoor heating load signal and the temperature signal of the hot water in the hot water storage tank. In addition, during cooling operation or heating operation, the second electromagnetic on-off valve 9 is closed and the hot water supply heat exchange vs1
0 does not operate, there is no inflow or stagnation of refrigerant into this heat exchanger 1o, and since indoor heat exchange @ 6 is on the low pressure side during hot water supply operation, there is no inflow or stagnation of refrigerant into this heat exchanger 6. There is no problem of excess or shortage of refrigerant during operation, and stable operation is possible. Furthermore, during cooling hot water supply operation, the flow of refrigerant in the outdoor heat exchanger 4 and the hot water supply heat exchanger 10, which are on the condenser side, is limited to the capacity of the hot water heat exchanger 10 when the temperature of the circulating hot water supply water is low. becomes dominant and the hot water supply capacity can be increased, and as the temperature of hot water rises, the condensing capacity of the hot water supply heat exchanger 10 decreases, so the capacity of the outdoor heat exchanger 4 becomes dominant, and therefore the hot water supply capacity increases. The flow of refrigerant to the outdoor heat exchanger 10 and the outdoor heat exchanger 4 is automatically adjusted, allowing operation without changing the cooling capacity.
以上説明したように、この発明によれば圧縮機の吐出口
と四方切換弁との間の冷媒回路に第１の電磁開閉弁を設
け、圧縮機の吐出口と第１の電磁開閉弁との間から分岐
され第２の電磁開閉弁を設けた分岐回路に給湯用熱交換
器を接続し、第１゜第２の電磁開閉弁の開閉および四方
切換弁の切り換えにより、冷房、暖房、給湯、冷房給湯
、暖房給湯の各運転を行うようにしたので、従来のもの
のように多数の電磁開閉弁を用いることなく、２つのｒ
ｉ電磁開閉弁よって上記各運転ができ、冷媒回路が簡素
となって安価に製作でき、また冷媒回路の流路抵抗が減
少するとともに電磁開閉弁への電気入力が大幅に減少し
、冷凍サイクルの性能が向上し、ランニングコストも低
減し、さらに冷媒回路の重量の軽減、小形化が可能とな
り実用性の高いヒートポンプ式冷暖房給湯装置が得られ
るという効果がある。As explained above, according to the present invention, the first electromagnetic on-off valve is provided in the refrigerant circuit between the discharge port of the compressor and the four-way switching valve, and the first electromagnetic on-off valve is connected between the discharge port of the compressor and the four-way switching valve. A heat exchanger for hot water supply is connected to a branch circuit branched from between and equipped with a second electromagnetic on-off valve, and by opening and closing the first and second electromagnetic on-off valves and switching the four-way switching valve, cooling, heating, hot water supply, Since it is designed to perform both cooling hot water supply and heating hot water supply operations, two r
i The electromagnetic on-off valve enables each of the above operations, the refrigerant circuit is simple and can be manufactured at low cost, and the flow resistance of the refrigerant circuit is reduced, as well as the electrical input to the electromagnetic on-off valve is significantly reduced, which improves the refrigeration cycle. This has the effect of improving performance, reducing running costs, and making it possible to reduce the weight and size of the refrigerant circuit, resulting in a highly practical heat pump type air-conditioning/heating and hot water supply system.
第１図はこの発明の一実施例によると−トボンブ式冷暖
房給湯装置の冷媒回路を示す構成図、第２図、第３図、
第４図、第５図および第６図は第１図の冷媒流路を給湯
用水回路を除いて示す冷房運転時、冷房給湯運転時、暖
房運転時、暖房給湯運転時、および給湯運転時の説明図
、第７図は従来例のヒートポンプ式冷暖房給湯装置の冷
媒回路を示す構成図である。
１・・圧縮機、２ 第１の電磁開閉弁、３ 四方切換弁
、４ 室外熱交換器、５・−絞り装置、６室内熱交換盟
、８ アキュムレータ、９ 第２の電磁開閉弁、１０
給湯用熱交換器、１１，１２゜１３．１４，１５ 逆
止弁。
なお、図中同一符号は同−又は相当部分を示す。FIG. 1 is a configuration diagram showing a refrigerant circuit of a bomb-type air-conditioning, heating, and hot-water supply system according to an embodiment of the present invention; FIGS. 2 and 3;
Figures 4, 5, and 6 show the refrigerant flow path in Figure 1 with the hot water supply water circuit removed, during cooling operation, cooling hot water supply operation, heating operation, heating hot water supply operation, and hot water supply operation. The explanatory diagram, FIG. 7, is a configuration diagram showing a refrigerant circuit of a conventional heat pump type air-conditioning/heating/water supply device. 1 Compressor, 2 First electromagnetic on-off valve, 3 Four-way switching valve, 4 Outdoor heat exchanger, 5 - Throttle device, 6 Indoor heat exchanger, 8 Accumulator, 9 Second electromagnetic on-off valve, 10
Heat exchanger for hot water supply, 11, 12° 13. 14, 15 Check valve. Note that the same reference numerals in the figures indicate the same or equivalent parts.
Claims (1)
交換器および給湯用熱交換器をヒートポンプ冷媒回路の
主な構成要素として、冷房、暖房給湯運転を行うヒート
ポンプ式冷暖房給湯装置において、圧縮機の吐出口と四
方切換弁との間の冷媒回路に第１の電磁開閉弁を設け、
圧縮機の吐出口と第１の電磁開閉弁との間で冷媒回路か
ら分岐され第２の電磁開閉弁を設けた分岐回路に給湯用
熱交換器を接続し、冷房および暖房運転時には第１の電
磁開閉弁を開、第２の電磁開閉弁を閉とし、給湯運転時
には、第１の電磁開閉弁を閉、第２の電磁開閉弁を開と
し、冷房給湯運転時および暖房給湯運転時には、第１、
第２の電磁開閉弁をともに開とし、四方切換弁の切換え
と相まって上記各運転を行うようにしたことを特徴とす
るヒートポンプ式冷暖房給湯装置。In a heat pump type air-conditioning/heating/water heating system that performs cooling, heating/hot water supply operations using a compressor, a four-way switching valve, an outdoor heat exchanger, a throttle device, an indoor heat exchanger, and a hot water supply heat exchanger as the main components of a heat pump refrigerant circuit, A first electromagnetic on-off valve is provided in the refrigerant circuit between the discharge port of the compressor and the four-way switching valve,
A heat exchanger for hot water supply is connected to a branch circuit that is branched from the refrigerant circuit between the discharge port of the compressor and the first electromagnetic on-off valve and is provided with a second electromagnetic on-off valve. The electromagnetic on-off valve is opened and the second electromagnetic on-off valve is closed. During hot water supply operation, the first electromagnetic on-off valve is closed and the second electromagnetic on-off valve is opened. 1,
A heat pump type air-conditioning/heating/water supply device characterized in that both the second electromagnetic on-off valves are opened, and each of the above operations is performed in combination with switching of the four-way switching valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32277288A JPH02169968A (en) | 1988-12-21 | 1988-12-21 | Heat pump type room cooler/heater hot water supply apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32277288A JPH02169968A (en) | 1988-12-21 | 1988-12-21 | Heat pump type room cooler/heater hot water supply apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02169968A true JPH02169968A (en) | 1990-06-29 |
Family
ID=18147470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP32277288A Pending JPH02169968A (en) | 1988-12-21 | 1988-12-21 | Heat pump type room cooler/heater hot water supply apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02169968A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0464063U (en) * | 1990-10-16 | 1992-06-01 | ||
| JPH04268173A (en) * | 1991-02-21 | 1992-09-24 | Tomoe Shokai:Kk | Cooling, heating and hot water feeding device |
| CN1302239C (en) * | 2003-03-11 | 2007-02-28 | 日立家用电器公司 | Refrigeration circulator |
| WO2010098061A1 (en) * | 2009-02-24 | 2010-09-02 | ダイキン工業株式会社 | Heat pump system |
| WO2010098069A1 (en) * | 2009-02-24 | 2010-09-02 | ダイキン工業株式会社 | Heat pump system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60191155A (en) * | 1984-03-12 | 1985-09-28 | 株式会社日立製作所 | Heat recovery type chiller unit |
| JPS6262277A (en) * | 1985-09-12 | 1987-03-18 | Nec Corp | Initial trapping system for satellite |
-
1988
- 1988-12-21 JP JP32277288A patent/JPH02169968A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60191155A (en) * | 1984-03-12 | 1985-09-28 | 株式会社日立製作所 | Heat recovery type chiller unit |
| JPS6262277A (en) * | 1985-09-12 | 1987-03-18 | Nec Corp | Initial trapping system for satellite |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0464063U (en) * | 1990-10-16 | 1992-06-01 | ||
| JPH04268173A (en) * | 1991-02-21 | 1992-09-24 | Tomoe Shokai:Kk | Cooling, heating and hot water feeding device |
| CN1302239C (en) * | 2003-03-11 | 2007-02-28 | 日立家用电器公司 | Refrigeration circulator |
| WO2010098061A1 (en) * | 2009-02-24 | 2010-09-02 | ダイキン工業株式会社 | Heat pump system |
| WO2010098069A1 (en) * | 2009-02-24 | 2010-09-02 | ダイキン工業株式会社 | Heat pump system |
| JP2010196950A (en) * | 2009-02-24 | 2010-09-09 | Daikin Ind Ltd | Heat pump system |
| US8769974B2 (en) | 2009-02-24 | 2014-07-08 | Daikin Industries, Ltd. | Heat pump system |
| US9581361B2 (en) | 2009-02-24 | 2017-02-28 | Daikin Industries, Ltd. | Heat pump system |
| EP2402686A4 (en) * | 2009-02-24 | 2017-04-26 | Daikin Industries, Ltd. | Heat pump system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3858015B2 (en) | Refrigerant circuit and heat pump water heater | |
| JP5265001B2 (en) | Air conditioner | |
| KR101980710B1 (en) | Air conditioner | |
| CN203964454U (en) | A kind of pure electric automobile heat pump type air conditioning system and pure electric automobile | |
| CN109210820A (en) | Multifunctional heat pump and switching method for implementing different functions thereof | |
| CN109945374B (en) | Air conditioner and integrated circulation pipeline system thereof | |
| CN101749812A (en) | Multifunctional Air Conditioning System | |
| JP2908013B2 (en) | Air conditioner | |
| CN114683803A (en) | Pure electric vehicle thermal management system based on heat pump and control method thereof | |
| CN110579036A (en) | Multi-split cold and hot water system and control method thereof | |
| JP2980022B2 (en) | Heat pump water heater | |
| CN213272984U (en) | Heat exchange system and air conditioner with same | |
| CN203478692U (en) | Total heat recovery household multi-split air-conditioner system | |
| CN1888637A (en) | Hot pump type air conditioner set with water heater | |
| JP3404133B2 (en) | Thermal storage type air conditioner | |
| CN204254925U (en) | Heat exchange system and air conditioner with same | |
| CN201059703Y (en) | Refrigeration system of air conditioner hot-water multipurpose apparatus | |
| CN203869367U (en) | Floor heating system, water heater and air conditioner three-in-one unit | |
| JPH02169968A (en) | Heat pump type room cooler/heater hot water supply apparatus | |
| CN102809247A (en) | Variable frequency air-cooled cold water heat pump air-conditioner hot water system | |
| CN209819774U (en) | Air conditioner and integrated circulating pipeline system thereof | |
| CN113357691A (en) | Air conditioner, floor heating and hot water three-in-one low-temperature air source heat pump unit | |
| CN207050131U (en) | A kind of air-conditioning | |
| CN102889709B (en) | Frequency-conversion multifunctional air-conditioning water heating system | |
| CN220669821U (en) | Heat pump system and air conditioner |