JPH09170837A - Hot water feeder serving also as cooler heater - Google Patents
Hot water feeder serving also as cooler heaterInfo
- Publication number
- JPH09170837A JPH09170837A JP33199695A JP33199695A JPH09170837A JP H09170837 A JPH09170837 A JP H09170837A JP 33199695 A JP33199695 A JP 33199695A JP 33199695 A JP33199695 A JP 33199695A JP H09170837 A JPH09170837 A JP H09170837A
- Authority
- JP
- Japan
- Prior art keywords
- way valve
- refrigerant
- hot water
- heater
- valve
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2500/00—Problems to be solved
- F25B2500/02—Increasing the heating capacity of a reversible cycle during cold outdoor conditions
Landscapes
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、ヒートポンプ式冷
凍サイクル回路を備えて冷暖房運転の切換えを可能と
し、かつ温水加熱を同時にもしくは独立して行える給湯
機兼用冷暖房機に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water heater / cooler having a heat pump type refrigeration cycle circuit capable of switching between heating and cooling operations and heating hot water simultaneously or independently.
【０００２】[0002]
【従来の技術】冷房運転と暖房運転とを適宜切換えられ
る冷暖房機は、いわゆるヒートポンプ式の冷凍サイクル
回路を備えていて、この回路を構成する切換え弁である
四方弁を所定方向に切換えることにより、冷媒の流通方
向を変えている。2. Description of the Related Art A cooling / heating machine capable of appropriately switching between a cooling operation and a heating operation is provided with a so-called heat pump type refrigeration cycle circuit, and by switching a four-way valve which is a switching valve constituting this circuit in a predetermined direction, Changing the circulation direction of the refrigerant.
【０００３】この種の冷暖房機において、特に暖房運転
時に外気温が極端に低下する条件下では、外気から汲み
上げる熱量もまた低下して、効果的な暖房作用を得るこ
とは難しい。[0003] In this type of air conditioner, especially under the condition that the outside air temperature extremely decreases during heating operation, the amount of heat pumped from the outside air also decreases, and it is difficult to obtain an effective heating action.
【０００４】そこで、近時、通常の蒸気圧縮式の冷凍サ
イクル回路を備えた冷房機と、ガス冷媒加熱方式を採用
した暖房機とを１つのシステムとして提供する、ガス冷
媒加熱冷暖房機が提供されるようになった。Therefore, recently, there has been provided a gas-refrigerant heating air conditioner, which provides a cooler equipped with a normal vapor compression refrigeration cycle circuit and a heater adopting a gas refrigerant heating system as one system. It became so.
【０００５】このような方式であれば、暖房運転時に外
気温が極端に低下しても、冷媒加熱器をガス加熱するこ
とにより、外気からの熱量の汲み上げ不足を無視でき、
効率のよい暖房作用が得られる。With such a system, even if the outside air temperature is extremely lowered during the heating operation, the refrigerant heater is gas-heated, and the insufficient pumping of the heat quantity from the outside air can be ignored.
Efficient heating action can be obtained.
【０００６】[0006]
【発明が解決しようとする課題】ところで、快適な住空
間を得るには、先に述べた冷暖房運転などの空気調和の
ほかに、必要なときに十分な量の給湯をなす、効率のよ
い給湯設備を備えることが欠かせない。By the way, in order to obtain a comfortable living space, in addition to the air conditioning such as the heating and cooling operation described above, a sufficient amount of hot water is supplied when necessary, and an efficient hot water supply. It is essential to have equipment.
【０００７】従来より、給湯機はそれ単独として存在し
ており、冷暖房機とは全く別の設備として整えられてい
る。しかるに、給熱対象物として、冷暖房機が空気であ
るのに対して、給湯機が水であることの相違があるが、
熱供給源は同一のものであっても少しの支障もない。す
なわち、冷暖房機と給湯機とを一体化した設備の提供が
期待されている。Conventionally, the hot water supply device has existed as its own, and is prepared as a completely different facility from the cooling and heating machine. However, there is a difference that the heating and cooling machine is air as the heat supply object, whereas the water heater is water.
Even if the heat sources are the same, there is no problem. That is, it is expected to provide a facility in which an air conditioner and a water heater are integrated.
【０００８】本発明は上記事情にもとづきなされたもの
であり、その目的とするところは、蒸気圧縮式の冷凍サ
イクルによる冷暖房機と、ガス冷媒加熱による給湯機と
を一体化して、設備の簡素化を図るとともに快適な住空
間が得られ、特に、外気温が極端に低いときにおける暖
房能力の向上を図れる給湯機兼用冷暖房機を提供しよう
とするものである。The present invention has been made based on the above circumstances, and an object thereof is to simplify a facility by integrating a cooling / heating machine by a vapor compression type refrigeration cycle and a water heater by gas refrigerant heating. In addition to providing a comfortable living space, it is an object of the present invention to provide an air conditioner / heater that also serves as a water heater that can improve the heating capacity especially when the outside temperature is extremely low.
【０００９】[0009]
【課題を解決するための手段】上記目的を満足するた
め、第１の発明の給湯機兼用冷暖房機は、請求項１とし
て、圧縮機と、切換え弁と、室外熱交換器と、第１の膨
張弁および第２の膨張弁を直列に接続した減圧装置と、
室内熱交換器とを連通したヒートポンプ式の冷凍サイク
ル回路と、この冷凍サイクル回路の上記切換え弁と上記
室内熱交換器との間から分岐され、第１の三方弁と、温
水加熱器と、第２の三方弁とを介して上記第１の膨張弁
と第２の膨張弁との間に接続される第１の並列流路と、
上記第１の三方弁の第３のポートから分岐され、補助圧
縮機と、冷媒加熱器とを介して上記第２の三方弁の第３
のポートに分岐される第２の並列流路とを具備したこと
を特徴とする。In order to satisfy the above-mentioned objects, a hot-water supply / cooling machine according to the first aspect of the present invention is, as a first aspect, a compressor, a switching valve, an outdoor heat exchanger, and a first heat exchanger. A decompression device in which an expansion valve and a second expansion valve are connected in series;
A heat pump type refrigeration cycle circuit communicating with the indoor heat exchanger, a branch between the switching valve of the refrigeration cycle circuit and the indoor heat exchanger, a first three-way valve, a hot water heater, a A first parallel flow path connected between the first expansion valve and the second expansion valve via a two-way three-way valve;
It is branched from the third port of the first three-way valve, and the third port of the second three-way valve is branched through the auxiliary compressor and the refrigerant heater.
And a second parallel flow path that is branched to the port.
【００１０】上記目的を満足するため、第２の発明の給
湯機兼用冷暖房機は、請求項２として、圧縮機と、切換
え弁と、室外熱交換器と、減圧装置と、室内熱交換器と
を連通したヒートポンプ式の冷凍サイクル回路と、この
冷凍サイクル回路の上記切換え弁と上記室内熱交換器と
の間から分岐され、第１の三方弁と、温水加熱器と、第
２の三方弁とを介して上記減圧装置と室内熱交換器との
間に接続される第１の並列流路と、上記第１の三方弁の
第３のポートから分岐され、冷媒加熱器と、ポンプとを
介して上記第２の三方弁の第３のポートに接続される第
２の並列流路とを具備したことを特徴とする。In order to satisfy the above-mentioned object, the hot-water supply / cooling machine according to the second aspect of the present invention is, as a second aspect, a compressor, a switching valve, an outdoor heat exchanger, a pressure reducing device, and an indoor heat exchanger. A heat pump type refrigeration cycle circuit communicating with each other, a branch between the switching valve of the refrigeration cycle circuit and the indoor heat exchanger, and a first three-way valve, a hot water heater, and a second three-way valve. Via a first parallel flow path connected between the pressure reducing device and the indoor heat exchanger via a third port of the first three-way valve, and via a refrigerant heater and a pump. And a second parallel flow path connected to the third port of the second three-way valve.
【００１１】請求項３として、請求項１および請求項２
記載の上記冷凍サイクル回路が暖房運転状態にあると
き、上記第１の三方弁と第２の三方弁とを切換え制御し
て、補助圧縮機−第１の三方弁−温水加熱器−第２の三
方弁−冷媒加熱器−補助圧縮機の独立した閉ループ回路
を形成すること、およびポンプ−冷媒加熱器−第１の三
方弁−温水加熱器−第２の三方弁−ポンプの独立した閉
ループ回路を形成することを特徴とする。Claims 1 and 2 are defined as Claim 3.
When the above described refrigeration cycle circuit is in the heating operation state, the first three-way valve and the second three-way valve are switched and controlled, and the auxiliary compressor-the first three-way valve-the hot water heater-the second one. Forming an independent closed loop circuit of the three-way valve-refrigerant heater-auxiliary compressor, and a pump-refrigerant heater-first three-way valve-hot water heater-second three-way valve-pump independent closed loop circuit. It is characterized by forming.
【００１２】請求項４として、請求項１および請求項２
記載の上記冷凍サイクル回路が冷房運転状態にあると
き、上記第１の三方弁と第２の三方弁とを切換え制御し
て、補助圧縮機−第１の三方弁−温水加熱器−第２の三
方弁−冷媒加熱器−補助圧縮機の独立した閉ループ回路
を形成すること、およびポンプ−冷媒加熱器−第１の三
方弁−温水加熱器−第２の三方弁−ポンプの独立した閉
ループ回路を形成することを特徴とする。Claims 1 and 2 are defined as Claim 4.
When the above described refrigeration cycle circuit is in the cooling operation state, the first three-way valve and the second three-way valve are switched and controlled, and the auxiliary compressor-the first three-way valve-the hot water heater-the second one. Forming an independent closed loop circuit of the three-way valve-refrigerant heater-auxiliary compressor, and a pump-refrigerant heater-first three-way valve-hot water heater-second three-way valve-pump independent closed loop circuit. It is characterized by forming.
【００１３】請求項５として、請求項１および請求項２
記載の上記切換え弁と、第１の三方弁および第２の三方
弁とを切換え制御して、圧縮機から吐出される高圧冷媒
を直接温水加熱器に導き温水加熱をなすことを特徴とす
る。Claims 1 and 2 are as claim 5.
It is characterized in that the switching valve described above and the first three-way valve and the second three-way valve are switched and controlled, and the high-pressure refrigerant discharged from the compressor is directly introduced into the hot water heater to perform hot water heating.
【００１４】請求項６として、請求項１記載の上記切換
え弁と室外熱交換器との間から分岐して、二方弁を介し
て上記第１の三方弁と温水加熱器との間に連通される補
助バイパス路を備え、冷房運転時に、第１の三方弁と第
２の三方弁とを制御して、室外熱交換器をバイパスし補
助バイパス路を介して上記温水加熱器に冷媒を導き、冷
房運転と同時に温水加熱することを特徴とする。According to a sixth aspect of the present invention, a branch is provided between the switching valve and the outdoor heat exchanger according to the first aspect, and the two-way valve communicates between the first three-way valve and the hot water heater. And a second three-way valve that controls the first three-way valve and the second three-way valve during cooling operation to bypass the outdoor heat exchanger and guide the refrigerant to the hot water heater through the auxiliary bypass passage. The feature is that hot water is heated at the same time as the cooling operation.
【００１５】請求項７として、請求項１ないし請求項６
記載の使用される冷媒は、Ｒ４１０ＡとＲ２３６ｆａの
混合冷媒であることを特徴とする。上述の課題を解決す
る手段を採用することにより、請求項１ないし請求項７
の発明では、冷暖房運転とともに温水加熱による給湯作
用が独立して、もしくは同時に行える。Claims 1 to 6 are defined as Claim 7.
The refrigerant used is characterized in that it is a mixed refrigerant of R410A and R236fa. Claim 1 thru / or Claim 7 by adopting the means which solves the above-mentioned subject.
In the invention described above, the hot water supply operation by the hot water heating can be performed independently or simultaneously with the cooling and heating operation.
【００１６】[0016]
【発明の実施の形態】以下、本発明における実施の形態
を、図面にもとづいて説明する。図１に示す、図中１は
圧縮機であり、この吐出部に冷媒管Ｐを介して切換え弁
である四方弁２、室外熱交換器３、第１の電子膨張弁４
と第２の電子膨張弁５とを直列に接続した減圧装置６お
よび室内熱交換器７とが連通され、ヒートポンプ式の冷
凍サイクル回路Ｓが構成される。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. In FIG. 1, reference numeral 1 is a compressor, and a four-way valve 2 as a switching valve, an outdoor heat exchanger 3, and a first electronic expansion valve 4 are connected to a discharge portion via a refrigerant pipe P.
And a second electronic expansion valve 5 are connected in series to communicate with the decompression device 6 and the indoor heat exchanger 7 to form a heat pump type refrigeration cycle circuit S.
【００１７】また、上記四方弁２と上記室内熱交換器７
との間から分岐される冷媒管Ｐに、第１の並列流路Ｈａ
が構成される。この第１の並列流路Ｈａは、第１の三方
弁８と、温水加熱器９と、第２の三方弁１０とが順次接
続され、かつ流路の他端部は上記第１の電子膨張弁４と
第２の電子膨張弁５との間に接続される。Further, the four-way valve 2 and the indoor heat exchanger 7
To the refrigerant pipe P branched from between the first parallel flow path Ha
Is configured. In this first parallel flow path Ha, a first three-way valve 8, a hot water heater 9, and a second three-way valve 10 are sequentially connected, and the other end of the flow path has the first electronic expansion described above. It is connected between the valve 4 and the second electronic expansion valve 5.
【００１８】上記温水加熱器９は、筒体１１内に貯溜す
る水を加熱する加熱源として筒体内に配置される。そし
て、筒体１１には、水を導入する導入管１２と、加熱し
て得られた温水を供出する温水供給管１３が接続され
る。The warm water heater 9 is arranged in the cylinder as a heating source for heating the water stored in the cylinder 11. An introduction pipe 12 for introducing water and a hot water supply pipe 13 for supplying hot water obtained by heating are connected to the cylinder 11.
【００１９】第１，第２の三方弁８，１０は、それぞれ
の第１のポートａと、第２のポートｂが、第１の並列流
路Ｈａを構成する冷媒管Ｐに接続される。そして、各三
方弁８，１０の第３のポートｃ相互間に接続される冷媒
管Ｐで、第２の並列流路Ｈｂが構成される。Each of the first and second three-way valves 8 and 10 has a first port a and a second port b connected to a refrigerant pipe P forming a first parallel flow path Ha. And the 2nd parallel flow path Hb is comprised by the refrigerant pipe P connected between the 3rd ports c of each three-way valve 8,10.
【００２０】すなわち第２の並列流路Ｈｂは、上記第１
の三方弁８の第３のポートｃから分岐される冷媒管Ｐ
に、補助圧縮機１５と、冷媒加熱器１６が設けられ、こ
れらを介して上記第２の三方弁１０の第３のポートｃに
接続されてなる。That is, the second parallel flow path Hb is the same as the first parallel flow path Hb.
Refrigerant pipe P branched from the third port c of the three-way valve 8
In addition, an auxiliary compressor 15 and a refrigerant heater 16 are provided, and are connected to the third port c of the second three-way valve 10 via these.
【００２１】上記冷媒加熱器１６は、近接した位置に図
示しないガス供給源に連通するガスバーナ１７が配置さ
れ、ここに導びかれる冷媒を加熱できるようになってい
る。上記補助圧縮機１５は、冷凍サイクル回路Ｓを構成
する圧縮機１よりも圧縮能力が小さいものであってよ
い。The refrigerant heater 16 is provided with a gas burner 17 in close proximity to a gas supply source (not shown) so that the refrigerant introduced therein can be heated. The auxiliary compressor 15 may have a compression capacity smaller than that of the compressor 1 forming the refrigeration cycle circuit S.
【００２２】このようにして、電動部品である圧縮機
１、四方弁２、第１，第２の電子膨張弁４，５、第１，
第２の三方弁８，１０、補助圧縮機１５および冷媒加熱
器１６を構成するガスバーナ１７の電磁開閉弁などは、
ここでは図示しない制御回路に電気的に接続されて、必
要な制御を受けるようになっている。In this way, the compressor 1, the four-way valve 2, the first and second electronic expansion valves 4,5, the first and the first, which are electric parts, are used.
The electromagnetic on-off valve of the gas burner 17 constituting the second three-way valves 8 and 10, the auxiliary compressor 15, and the refrigerant heater 16 are
Here, it is electrically connected to a control circuit (not shown) to receive necessary control.
【００２３】つぎに、給湯機兼用冷暖房機の作用につい
て説明する。冷房運転時には、冷媒は図中実線矢印に示
すように導かれる。すなわち、圧縮機１−四方弁２−室
外熱交換器３−第１の電子膨張弁４−第２の電子膨張弁
５−室内熱交換器７−四方弁２−圧縮機１の順である。Next, the operation of the water heater / cooler will be described. During the cooling operation, the refrigerant is guided as shown by the solid line arrow in the figure. That is, the order is: compressor 1-four-way valve 2-outdoor heat exchanger 3-first electronic expansion valve 4-second electronic expansion valve 5-indoor heat exchanger 7-four-way valve 2-compressor 1.
【００２４】室内熱交換器７で冷媒は蒸発して、ここに
導かれる被空調室空気から蒸発潜熱を奪って温度低下を
なし、冷房作用が得られる。このとき、上記第２の電子
膨張弁５は全開状態を保持し、少しの減圧作用をなさな
い。全ての減圧作用は、第１の電子膨張弁４に負わせる
こととする。The refrigerant evaporates in the indoor heat exchanger 7, and the latent heat of evaporation is taken from the air to be conditioned in the room to be introduced therein, thereby lowering the temperature and providing a cooling action. At this time, the second electronic expansion valve 5 maintains the fully open state and does not perform a slight pressure reducing action. It is assumed that the first electronic expansion valve 4 bears all the pressure reducing action.
【００２５】上記第１の三方弁８は、第２のポートｂと
第３のポートｃとが連通するよう切換え制御される。第
２の三方弁１０は、第１のポートａと第３のポートｃと
が連通するよう切換え制御されていて、冷凍サイクル回
路Ｓに接続する第１のポートａが閉成される。したがっ
て、第１の並列流路Ｈａおよび第２の並列流路Ｈｂに冷
媒は導かれない。また、冷媒加熱器１６のガスバーナ１
７は加熱作用を行わない。The first three-way valve 8 is switching-controlled so that the second port b and the third port c communicate with each other. The second three-way valve 10 is switching-controlled so that the first port a and the third port c communicate with each other, and the first port a connected to the refrigeration cycle circuit S is closed. Therefore, the refrigerant is not guided to the first parallel flow passage Ha and the second parallel flow passage Hb. In addition, the gas burner 1 of the refrigerant heater 16
7 has no heating effect.
【００２６】暖房運転時には、冷媒は図中破線矢印に示
すように導かれる。すなわち、圧縮機１−四方弁２−室
内熱交換器７−第２の電子膨張弁５−第１の電子膨張弁
４−室外熱交換器３−四方弁２−圧縮機１の順である。During the heating operation, the refrigerant is guided as shown by the broken line arrow in the figure. That is, the order is compressor 1-four-way valve 2-indoor heat exchanger 7-second electronic expansion valve 5-first electronic expansion valve 4-outdoor heat exchanger 3-four-way valve 2-compressor 1.
【００２７】室内熱交換器７で冷媒は凝縮し、ここに導
かれる被空調室空気へ凝縮熱を放出して温度上昇をな
し、暖房作用が得られる。このとき、上記第１の電子膨
張弁４は全開状態を保持し、少しの冷媒減圧作用をなさ
ない。全ての減圧作用は、第２の電子膨張弁５に負わせ
ることとする。また、第１の三方弁８ほかの設定条件
は、先に説明した冷房運転時と全く同一に制御される。The refrigerant is condensed in the indoor heat exchanger 7, and the heat of condensation is released to the air in the air-conditioned room introduced therein to raise the temperature, and the heating effect is obtained. At this time, the first electronic expansion valve 4 maintains the fully opened state, and does not perform a slight refrigerant depressurizing action. It is assumed that the second electronic expansion valve 5 bears all the pressure reducing action. The setting conditions of the first three-way valve 8 and the like are controlled exactly the same as in the cooling operation described above.
【００２８】このような冷凍サイクル回路Ｓの運転・停
止とは独立して、ガス冷媒加熱による温水加熱作用が行
える。このときは、第１，第２の三方弁８，１０の切換
え設定はそのままの状態に保持制御をなし、補助圧縮機
１５を駆動するとともに冷媒加熱器１６のガスバーナ１
７に点火する。Independently of the operation / stop of the refrigeration cycle circuit S, the hot water heating action by the gas refrigerant heating can be performed. At this time, the switching setting of the first and second three-way valves 8 and 10 is maintained and the holding control is performed to drive the auxiliary compressor 15 and the gas burner 1 of the refrigerant heater 16.
Ignite 7.
【００２９】補助圧縮機１５から吐出される冷媒は、図
中一点鎖線矢印に示すように導かれる。すなわち、補助
圧縮機１５−第１の三方弁８の第３のポートｃから第２
のポートｂ−温水加熱器９−第２の三方弁１０の第１の
ポートａから第３のポートｃ−冷媒加熱器１６−補助圧
縮機１５の順に導かれ、閉ループ回路を形成する。The refrigerant discharged from the auxiliary compressor 15 is guided as shown by the one-dot chain line arrow in the figure. That is, from the auxiliary compressor 15-the third port c of the first three-way valve 8 to the second port c
Port b-the hot water heater 9-the first port a of the second three-way valve 10 to the third port c-the refrigerant heater 16-the auxiliary compressor 15 in that order to form a closed loop circuit.
【００３０】冷媒は冷媒加熱器１６で加熱されることに
より効率よく温度上昇し、補助圧縮機１５から吐出され
たときには、十分な高圧高温状態となる。そして、温水
熱交換器９に導かれると、筒体１１内に貯溜される水に
対して多量の凝縮熱を放出する。水は温水に変わり、設
定温度に上昇するまで上述の運転が継続される。The temperature of the refrigerant is efficiently raised by being heated by the refrigerant heater 16, and when discharged from the auxiliary compressor 15, the refrigerant is in a sufficiently high pressure and high temperature state. Then, when introduced into the hot water heat exchanger 9, a large amount of condensation heat is released to the water stored in the tubular body 11. The water changes to warm water, and the above operation is continued until the temperature rises to the set temperature.
【００３１】このようにして冷凍サイクル回路Ｓを使用
しないので、外気温が極く低温であっても、その影響を
全く受けずに温水加熱作用がなされて、設定温度の給湯
が支障なく行なわれる。Since the refrigeration cycle circuit S is not used in this way, even if the outside air temperature is extremely low, the hot water heating action is performed without being affected by it, and hot water supply at the set temperature is performed without any trouble. .
【００３２】また、暖房作用をなすにあたって、外気温
が極端に低下している条件下では、先に説明したヒート
ポンプ式冷凍サイクル回路Ｓでの供給熱量が不足する。
このような場合には、図２に示すようなガス冷媒加熱制
御を行い、熱量不足を補うこととする。Further, in performing the heating function, the amount of heat supplied to the heat pump type refrigeration cycle circuit S described above is insufficient under the condition that the outside air temperature is extremely lowered.
In such a case, the gas refrigerant heating control as shown in FIG. 2 is performed to compensate for the heat shortage.
【００３３】なお、同図の構成は図１に示した構成と全
く同一であり、同一部品に同番号を付して新たな説明は
省略する。ガス冷媒加熱制御による暖房運転時は、第１
の三方弁８に対し第１のポートａと第３のポートｃが連
通するよう切換え、第２の三方弁１０に対し第２のポー
トｂと第３のポートｃとが連通するよう切換え制御をな
す。圧縮機１は停止し、第１の電子膨張弁４は全閉とす
る。The configuration of the figure is exactly the same as the configuration shown in FIG. 1, the same parts are designated by the same reference numerals, and a new description will be omitted. During heating operation by gas refrigerant heating control,
The three-way valve 8 is switched so that the first port a and the third port c communicate with each other, and the second three-way valve 10 is controlled so that the second port b and the third port c communicate with each other. Eggplant The compressor 1 is stopped and the first electronic expansion valve 4 is fully closed.
【００３４】そして、補助圧縮機１５を駆動するととも
に、冷媒加熱器１６のバーナ１７を点火する。補助圧縮
機１５から吐出される冷媒は、図中実線矢印に示すよう
に導かれる。すなわち、補助圧縮機１５−第１の三方弁
８−室内熱交換器７−第２の電子膨張弁５−第２の三方
弁１０−冷媒加熱器１６−補助圧縮機１５の順に導か
れ、閉ループ回路を形成する。Then, the auxiliary compressor 15 is driven and the burner 17 of the refrigerant heater 16 is ignited. The refrigerant discharged from the auxiliary compressor 15 is guided as shown by the solid line arrow in the figure. That is, the auxiliary compressor 15-first three-way valve 8-indoor heat exchanger 7-second electronic expansion valve 5-second three-way valve 10-refrigerant heater 16-auxiliary compressor 15 are introduced in this order and closed loop. Form a circuit.
【００３５】上記室内熱交換器７で放出される凝縮熱
は、冷媒加熱器１６で得られた熱量であり、外気温が極
端に低下していても、その影響を全く受けることなく、
十分に効率のよい暖房作用が得られる。The condensation heat released by the indoor heat exchanger 7 is the amount of heat obtained by the refrigerant heater 16, and is not affected by the outside air temperature even if it is extremely lowered.
A sufficiently efficient heating action is obtained.
【００３６】そして、第２の電子膨張弁５の絞り状態を
設定することにより、室内熱交換器７における熱交換量
を最適に制御できる。なお、先に説明した温水加熱運転
は冷媒加熱器１６を用いたが、これに限定されるもので
はなく、電気料金の安い深夜電力時間帯などでは、ヒー
トポンプ式冷凍サイクル回路Ｓの作用のみでも可能であ
る。By setting the throttle state of the second electronic expansion valve 5, the amount of heat exchange in the indoor heat exchanger 7 can be optimally controlled. Although the refrigerant heater 16 is used in the warm water heating operation described above, the operation is not limited to this, and may be performed only by the operation of the heat pump type refrigeration cycle circuit S in a late-night power time zone where the electricity rate is low. Is.
【００３７】このときは、四方弁２を暖房運転と同一状
態に切換え、かつ第２の電子膨張弁５を全閉とする。第
１の三方弁８および第２の三方弁１０とも第１のポート
ａと第２のポートｂが連通するよう切換える。このとき
補助圧縮機１５と冷媒加熱器１６の作用はなさない。At this time, the four-way valve 2 is switched to the same state as the heating operation, and the second electronic expansion valve 5 is fully closed. Both the first three-way valve 8 and the second three-way valve 10 are switched so that the first port a and the second port b communicate with each other. At this time, the auxiliary compressor 15 and the refrigerant heater 16 do not function.
【００３８】冷媒は、同図に破線矢印に示すように導か
れる。すなわち、圧縮機１−四方弁２−第１の三方弁８
−温水加熱器９−第２の三方弁１０−第１の電子膨張弁
４−室外熱交換器３−四方弁２−圧縮機１の順である。The refrigerant is introduced as shown by the broken line arrow in FIG. That is, compressor 1-four-way valve 2-first three-way valve 8
-Hot water heater 9-Second three-way valve 10-First electronic expansion valve 4-Outdoor heat exchanger 3-Four-way valve 2-Compressor 1 in that order.
【００３９】上記温水加熱器９で冷媒が凝縮して凝縮熱
を放出し、筒体１１内に貯溜される水がこの熱を吸収し
て温度上昇する。水は温水化して、必要に応じた給湯が
可能となる。In the hot water heater 9, the refrigerant condenses to release heat of condensation, and the water stored in the cylindrical body 11 absorbs this heat and rises in temperature. The water becomes warm, and hot water can be supplied as needed.
【００４０】さらに、温水温度に応じてヒートポンプ温
水加熱とガス冷媒温水加熱を切換えるとより効率的であ
る。すなわち、温水温度が低い場合には、ここで説明し
たようなヒートポンプ温水加熱をなし、温水温度が高く
なってヒートポンプ温水加熱による冷媒温度との差があ
まりなくなったならば、先に図１で一点鎖線矢印で示す
ガス冷媒加熱による温水加熱に切換えれば、高温度の温
水を効率よく得られることとなる。Further, it is more efficient to switch between heat pump hot water heating and gas refrigerant hot water heating according to the hot water temperature. That is, when the hot water temperature is low, the heat pump hot water heating as described here is performed, and if the hot water temperature becomes high and the difference from the refrigerant temperature due to the heat pump hot water heating becomes small, one point in FIG. By switching to the hot water heating by the gas refrigerant heating shown by the chain line arrow, high temperature hot water can be efficiently obtained.
【００４１】冷凍サイクル回路Ｓによる温水加熱作用
を、冷房運転と並行して行うには、図３に示すような回
路構成が必要である。すなわち、先に説明した回路構成
に加えて、補助バイパス路Ｈｃが設けられる。In order to perform the hot water heating operation by the refrigeration cycle circuit S in parallel with the cooling operation, a circuit configuration as shown in FIG. 3 is required. That is, the auxiliary bypass path Hc is provided in addition to the circuit configuration described above.
【００４２】この補助バイパス路Ｈｃは、一端部が上記
四方弁２と室外熱交換器３とを連通する冷媒管Ｐから分
岐し、他端部が上記第１の三方弁８と温水加熱器９とを
連通する冷媒管に接続される。この補助バイパス路Ｈｃ
の中途部には、二方弁１８が設けられる。The auxiliary bypass passage Hc has one end branched from the refrigerant pipe P which connects the four-way valve 2 and the outdoor heat exchanger 3, and the other end is branched from the first three-way valve 8 and the hot water heater 9. And a refrigerant pipe that communicates with. This auxiliary bypass Hc
A two-way valve 18 is provided midway.
【００４３】しかして、上記四方弁２は冷房運転方向に
切換え、第１の電子膨張弁４は全閉とする。そして、第
１の三方弁８は第１のポートａと第３のポートｃを連通
し、第２の三方弁１０は第１のポートａと第２のポート
ｂを連通するよう制御する。補助圧縮機１５と冷媒加熱
器１６の作用はなさない。そして、補助バイパス路Ｈｃ
の二方弁１８は開放することは、勿論である。Therefore, the four-way valve 2 is switched to the cooling operation direction, and the first electronic expansion valve 4 is fully closed. Then, the first three-way valve 8 controls the first port a and the third port c to communicate with each other, and the second three-way valve 10 controls the first port a and the second port b to communicate with each other. The auxiliary compressor 15 and the refrigerant heater 16 do not function. And the auxiliary bypass Hc
Of course, the two-way valve 18 is opened.
【００４４】圧縮機１を駆動して、冷媒を図中実線矢印
に示すように導く。すなわち、圧縮機１−四方弁２−補
助バイパス路Ｈｃ−温水加熱器９−第２の三方弁１０−
第２の電子膨張弁５−室内熱交換器７−四方弁２−圧縮
機１の順である。The compressor 1 is driven to introduce the refrigerant as shown by the solid line arrow in the figure. That is, compressor 1-four-way valve 2-auxiliary bypass Hc-hot water heater 9-second three-way valve 10-
The order is the second electronic expansion valve 5-indoor heat exchanger 7-four-way valve 2-compressor 1.
【００４５】上記温水加熱器９で冷媒が凝縮して凝縮熱
を放出し、筒体１１内に貯溜される水がこの熱を吸収し
て温度上昇する。水は温水化して、必要に応じた給湯が
可能となる。In the hot water heater 9, the refrigerant condenses to release heat of condensation, and the water stored in the cylinder 11 absorbs this heat and rises in temperature. The water becomes warm, and hot water can be supplied as needed.
【００４６】そして、冷媒は室内熱交換器７に導かれて
蒸発し、蒸発潜熱を被空調室空気から奪って、冷房作用
をなす。また、以上説明した実施の形態では、第２の並
列流路Ｈｂに補助圧縮機１５を備えたが、圧縮機は高価
であるので、以下のように変えてもよい。Then, the refrigerant is guided to the indoor heat exchanger 7 to evaporate, depriving the latent heat of evaporation from the air in the air-conditioned room to perform a cooling operation. Further, in the embodiment described above, the auxiliary compressor 15 is provided in the second parallel flow path Hb, but the compressor is expensive, so it may be changed as follows.
【００４７】図４に示すように、後述する第２の並列流
路Ｈbbの構成以外は、全て先に説明した実施の形態と同
一であるので、ここでは同部品に同番号を付して新たな
説明は省略する。As shown in FIG. 4, except for the configuration of the second parallel flow path Hbb, which will be described later, the configuration is the same as that of the above-described embodiment, and therefore, the same parts are designated by the same reference numbers and newly added. Detailed description is omitted.
【００４８】上記第２の並列流路Ｈbbは、両端部の接続
位置は先に説明したものと同一である。この流路Ｈbbに
は、冷媒加熱器１６と、新たにポンプ２０が設けられ
る。ポンプ２０の採用により、上記補助圧縮機１５と比
較してより廉価に提供できる。そして、冷凍サイクル回
路Ｓにおける減圧装置６として、単一の電子膨張弁があ
ればよい。The connection positions of both ends of the second parallel flow path Hbb are the same as those described above. A refrigerant heater 16 and a new pump 20 are provided in this flow path Hbb. By adopting the pump 20, it can be provided at a lower cost than the auxiliary compressor 15. Then, as the pressure reducing device 6 in the refrigeration cycle circuit S, a single electronic expansion valve may be used.
【００４９】しかして、冷房運転時には、冷媒は図中実
線矢印に示すように導かれる。すなわち、圧縮機１−四
方弁２−室外熱交換器３−減圧装置６−室内熱交換器７
−四方弁２−圧縮機１の順である。Therefore, during the cooling operation, the refrigerant is guided as shown by the solid line arrow in the figure. That is, compressor 1-four-way valve 2-outdoor heat exchanger 3-pressure reducing device 6-indoor heat exchanger 7
-Four-way valve 2-compressor 1 in that order.
【００５０】室内熱交換器７で冷媒は蒸発して、ここに
導かれる被空調室空気から蒸発潜熱を奪って温度低下を
なし、冷房作用が得られる。暖房運転時には、冷媒は図
中破線矢印に示すように導かれる。すなわち、圧縮機１
−四方弁２−室内熱交換器７−減圧装置６−室外熱交換
器３−四方弁２−圧縮機１の順である。In the indoor heat exchanger 7, the refrigerant evaporates, and the latent heat of evaporation is taken from the air in the air-conditioned room introduced therein to lower the temperature, thus providing a cooling action. During the heating operation, the refrigerant is guided as shown by the broken line arrow in the figure. That is, the compressor 1
-Four-way valve 2-indoor heat exchanger 7-pressure reducing device 6-outdoor heat exchanger 3-four-way valve 2-compressor 1.
【００５１】室内熱交換器７で冷媒は凝縮し、ここに導
かれる被空調室空気へ凝縮熱を放出して温度上昇をな
し、暖房作用が得られる。このような冷凍サイクル回路
Ｓの運転・停止とは独立して、ガス冷媒加熱による温水
加熱作用が行える。The refrigerant is condensed in the indoor heat exchanger 7, and the heat of condensation is released to the air to be conditioned in the room to be introduced therein, thereby increasing the temperature and providing a heating effect. Independently of such operation / stop of the refrigeration cycle circuit S, the hot water heating action by the gas refrigerant heating can be performed.
【００５２】すなわち、第１，第２の三方弁８，１０の
切換え設定はそのままの状態に保持制御をなし、ポンプ
２０を駆動するとともに冷媒加熱器１６のガスバーナ１
７に点火する。That is, the switching setting of the first and second three-way valves 8 and 10 is maintained as it is, the pump 20 is driven, and the gas burner 1 of the refrigerant heater 16 is driven.
Ignite 7.
【００５３】ポンプ２０から吐出される冷媒は、図中一
点鎖線矢印に示すように導かれる。ポンプ２０−冷媒加
熱器１６−第１の三方弁８−温水加熱器９−第２の三方
弁１０−ポンプ２０の順に導かれ、閉ループ回路を形成
する。The refrigerant discharged from the pump 20 is guided as shown by the one-dot chain line arrow in the figure. The pump 20-refrigerant heater 16-first three-way valve 8-hot water heater 9-second three-way valve 10-pump 20 are introduced in this order to form a closed loop circuit.
【００５４】冷媒は冷媒加熱器１６で加熱されることに
より効率よく温度上昇し、そのまま温水熱交換器９へ圧
送されて、筒体１１内の水に多量の凝縮熱を放出する。
水は温水に変わり、設定温度に上昇するまで上述の運転
が継続される。The refrigerant efficiently rises in temperature by being heated by the refrigerant heater 16, is pumped to the hot water heat exchanger 9 as it is, and releases a large amount of condensation heat to the water in the tubular body 11.
The water changes to warm water, and the above operation is continued until the temperature rises to the set temperature.
【００５５】このようにして冷凍サイクル回路Ｓを使用
しないので、外気温が極く低温であっても、その影響を
全く受けずに温水加熱作用がなされて、設定温度の給湯
が支障なく行なわれる。Since the refrigeration cycle circuit S is not used in this way, even if the outside air temperature is extremely low, the hot water heating action is performed without being affected by the outside air temperature, and hot water supply at the set temperature is performed without any trouble. .
【００５６】暖房作用をなすにあたって、外気温が極端
に低下している条件下では、先に説明したヒートポンプ
式冷凍サイクル回路Ｓでの供給熱量が不足する。このよ
うな場合は、図５に示すようなガス冷媒加熱制御を行
い、熱量不足を補う。When performing the heating function, under the condition that the outside air temperature is extremely lowered, the heat supply amount in the heat pump type refrigeration cycle circuit S described above is insufficient. In such a case, the gas refrigerant heating control as shown in FIG. 5 is performed to compensate for the insufficient heat quantity.
【００５７】なお、同図の構成は図４に示した構成と全
く同一であり、同一部品に同番号を付して新たな説明は
省略する。ガス冷媒加熱制御による暖房運転時は、第１
の三方弁８に対し第１のポートａと第３のポートｃが連
通するよう切換え、第２の三方弁１０に対し第２のポー
トｂと第３のポートｃとが連通するよう切換え制御をな
す。圧縮機１は停止し、減圧装置６は全閉とする。そし
て、ポンプ２０を駆動し、冷媒加熱器１６のバーナ１７
を点火する。The configuration shown in the figure is exactly the same as the configuration shown in FIG. 4, and the same parts are allotted with the same reference numerals and a new description is omitted. During heating operation by gas refrigerant heating control,
The three-way valve 8 is switched so that the first port a and the third port c communicate with each other, and the second three-way valve 10 is controlled so that the second port b and the third port c communicate with each other. Eggplant The compressor 1 is stopped and the decompression device 6 is fully closed. Then, the pump 20 is driven and the burner 17 of the refrigerant heater 16 is driven.
Ignite.
【００５８】ポンプ２０から吐出される冷媒は、図中実
線矢印に示すように導かれる。すなわち、ポンプ２０−
冷媒加熱器１６−第１の三方弁８−室内熱交換器７−第
２の三方弁１０−ポンプ２０の順に導かれ、閉ループ回
路を形成する。The refrigerant discharged from the pump 20 is guided as shown by the solid line arrow in the figure. That is, the pump 20-
The refrigerant heater 16-first three-way valve 8-indoor heat exchanger 7-second three-way valve 10-pump 20 are introduced in this order to form a closed loop circuit.
【００５９】上記室内熱交換器７で放出される凝縮熱
は、冷媒加熱器１６で得られた熱量であり、外気温が極
端に低下していても、その影響を全く受けることなく、
十分に効率のよい暖房作用が得られる。The condensation heat released by the indoor heat exchanger 7 is the amount of heat obtained by the refrigerant heater 16, and is not affected by the outside air temperature even if it is extremely lowered.
A sufficiently efficient heating action is obtained.
【００６０】なお、ヒートポンプ式冷凍サイクル回路Ｓ
のみを利用しての温水加熱作用をなすには、以下のよう
に制御される。このとき、四方弁２を暖房運転と同一状
態に切換え、かつ第１の三方弁８および第２の三方弁１
０とも第１のポートａと第２のポートｂが連通するよう
切換える。このときポンプ２０と冷媒加熱器１６の作用
はなさない。The heat pump type refrigeration cycle circuit S
In order to perform the hot water heating action using only the water, it is controlled as follows. At this time, the four-way valve 2 is switched to the same state as the heating operation, and the first three-way valve 8 and the second three-way valve 1
With 0, switching is performed so that the first port a and the second port b communicate with each other. At this time, the pump 20 and the refrigerant heater 16 do not function.
【００６１】冷媒は、同図に破線矢印に示すように導か
れる。すなわち、圧縮機１−四方弁２−第１の三方弁８
−温水加熱器９−第２の三方弁１０−減圧装置６−室外
熱交換器３−四方弁２−圧縮機１の順である。The refrigerant is introduced as shown by the broken line arrow in FIG. That is, compressor 1-four-way valve 2-first three-way valve 8
-Hot water heater 9-Second three-way valve 10-Decompression device 6-Outdoor heat exchanger 3-Four-way valve 2-Compressor 1 in that order.
【００６２】上記温水加熱器９で冷媒が凝縮して凝縮熱
を放出し、筒体１１内に貯溜される水がこの熱を吸収し
て温度上昇する。水は温水化して、必要に応じた給湯が
可能となる。In the hot water heater 9, the refrigerant condenses to release heat of condensation, and the water stored in the cylindrical body 11 absorbs this heat and rises in temperature. The water becomes warm, and hot water can be supplied as needed.
【００６３】そして、先に説明したものと同様に、温水
温度が低い場合には、このヒートポンプ温水加熱をな
し、温水温度が高くなったら、図４に一点鎖線矢印で示
すガス冷媒加熱による温水加熱に切換えれば、高温度の
温水を効率よく得られる。As in the case described above, when the hot water temperature is low, this heat pump hot water heating is performed, and when the hot water temperature becomes high, hot water heating by gas refrigerant heating shown by the one-dot chain line arrow in FIG. 4 is performed. By switching to, hot water of high temperature can be obtained efficiently.
【００６４】なお、これら全ての実施の形態で、冷媒と
してＲ４１０ＡとＲ２３６ｆａとの混合冷媒を用いるこ
ととする。上記Ｒ４１０Ａは、ジフルオロメタン（Ｒ３
２）と、ペンタフルオロエタン（Ｒ１２５）とを互いに
５０％（重量比）の割合で混合したものである。上記Ｒ
２３６ｆａは、ＨＦＣ単一冷媒である。上記冷媒の採用
により、オゾン破壊係数がゼロになり環境対応性が優れ
るとともに、特に温水加熱器９での効率のよい加熱を行
える。In all of these embodiments, a mixed refrigerant of R410A and R236fa is used as the refrigerant. The above R410A is a difluoromethane (R3
2) and pentafluoroethane (R125) are mixed with each other at a ratio of 50% (weight ratio). R above
236fa is a HFC single refrigerant. By adopting the above-mentioned refrigerant, the ozone depletion coefficient becomes zero, the environmental friendliness is excellent, and particularly, the hot water heater 9 can perform efficient heating.
【００６５】[0065]
【発明の効果】以上述べたように、請求項１の発明によ
れば、ヒートポンプ式の冷凍サイクル回路と、第１の三
方弁、温水加熱器、第２の三方弁とを接続する第１の並
列流路と、補助圧縮機、冷媒加熱器とを接続する第２の
並列流路とを具備した。As described above, according to the invention of claim 1, the heat pump type refrigeration cycle circuit is connected to the first three-way valve, the hot water heater, and the second three-way valve. The parallel flow path and the second parallel flow path connecting the auxiliary compressor and the refrigerant heater were provided.
【００６６】請求項２の発明によれば、ヒートポンプ式
の冷凍サイクル回路と、第１の三方弁、温水加熱器、第
２の三方弁とを接続する第１の並列流路と、ポンプと、
冷媒加熱器とを接続する第２の並列流路とを具備した。According to the second aspect of the invention, the heat pump type refrigeration cycle circuit, the first three-way valve connecting the first three-way valve, the hot water heater, and the second three-way valve, the pump,
And a second parallel flow path connecting to the refrigerant heater.
【００６７】請求項３の発明によれば、暖房運転時に、
補助圧縮機−第１の三方弁−温水加熱器−第２の三方弁
−冷媒加熱器−補助圧縮機の順に冷媒を導く。あるい
は、ポンプ−冷媒加熱器−第１の三方弁−温水加熱器−
第２の三方弁−ポンプの順に冷媒を導く。According to the invention of claim 3, during the heating operation,
The refrigerant is introduced in the order of auxiliary compressor-first three-way valve-hot water heater-second three-way valve-refrigerant heater-auxiliary compressor. Alternatively, pump-refrigerant heater-first three-way valve-hot water heater-
The refrigerant is introduced in the order of the second three-way valve-pump.
【００６８】請求項４の発明によれば、冷房運転時に、
補助圧縮機−第１の三方弁−温水加熱器−第２の三方弁
−冷媒加熱器−補助圧縮機の順に冷媒を導く。あるい
は、ポンプ−冷媒加熱器−第１の三方弁−温水加熱器−
第２の三方弁−ポンプの順に冷媒を導く。According to the invention of claim 4, during the cooling operation,
The refrigerant is introduced in the order of auxiliary compressor-first three-way valve-hot water heater-second three-way valve-refrigerant heater-auxiliary compressor. Alternatively, pump-refrigerant heater-first three-way valve-hot water heater-
The refrigerant is introduced in the order of the second three-way valve-pump.
【００６９】請求項５の発明によれば、切換え弁と、第
１の三方弁および第２の三方弁とを切換え制御して、圧
縮機から吐出される高圧冷媒を直接温水加熱器に導いて
温水加熱をなす。According to the fifth aspect of the present invention, the switching valve and the first three-way valve and the second three-way valve are switched and controlled so that the high pressure refrigerant discharged from the compressor is directly guided to the hot water heater. Apply hot water.
【００７０】請求項６の発明によれば、冷房運転時に、
室外熱交換器をバイパスする二方弁を備えた補助バイパ
ス路を介して温水加熱器に冷媒を導き、温水加熱しなが
ら冷房運転をなす。According to the invention of claim 6, during the cooling operation,
Refrigerant is introduced into a hot water heater through an auxiliary bypass path provided with a two-way valve that bypasses the outdoor heat exchanger, and cooling operation is performed while heating the hot water.
【００７１】請求項７の発明によれば、使用される冷媒
は、Ｒ４１０ＡとＲ２３６ｆａの混合冷媒である。した
がって、請求項１ないし請求項７の発明によれは、蒸気
圧縮式の冷凍サイクルによる冷暖房機と、ガス冷媒加熱
による給湯機との一体化が可能となり、設備の簡素化を
図るとともに快適な住空間が得られ、特に外気温が極端
に低いときにおける暖房能力の向上を得られるなどの効
果を奏する。According to the invention of claim 7, the refrigerant used is a mixed refrigerant of R410A and R236fa. Therefore, according to the inventions of claims 1 to 7, it becomes possible to integrate a cooling and heating machine by a vapor compression type refrigeration cycle and a water heater by heating with a gas refrigerant, which simplifies the equipment and provides a comfortable living environment. It is possible to obtain a space, and in particular, it is possible to obtain the effect of improving the heating capacity when the outside air temperature is extremely low.
【図１】本発明の実施の形態を示す、給湯機兼用冷暖房
機のサイクル構成図であり、冷房作用と、暖房作用と、
温水加熱作用を説明する図。FIG. 1 is a cycle configuration diagram of an air conditioner / heater that also serves as a water heater, showing an embodiment of the present invention.
The figure explaining the warm water heating effect.
【図２】同実施の形態の、給湯機兼用冷暖房機のサイク
ル構成図であり、ガス暖房作用と、ヒートポンプ温水加
熱作用を説明する図。FIG. 2 is a cycle configuration diagram of the hot-water supply / cooling machine according to the same embodiment, and is a view for explaining a gas heating operation and a heat pump hot water heating operation.
【図３】他の実施の形態の、給湯機兼用冷暖房機のサイ
クル構成図であり、冷房作用およびヒートポンプ温水加
熱作用を説明する図。FIG. 3 is a cycle configuration diagram of a water heater / air conditioner / heater according to another embodiment of the present invention, and is a view for explaining a cooling action and a heat pump hot water heating action.
【図４】さらに異なる他の実施の形態の、給湯機兼用冷
暖房機のサイクル構成図であり、冷房作用と、暖房作用
と、温水加熱作用を説明する図。FIG. 4 is a cycle configuration diagram of a water heater / air conditioner / heater according to still another embodiment, which is a diagram for explaining a cooling action, a heating action, and a hot water heating action.
【図５】同実施の形態の、給湯機兼用冷暖房機のサイク
ル構成図であり、ガス暖房作用と、ヒートポンプ温水加
熱作用を説明する図。FIG. 5 is a cycle configuration diagram of the water heater / air conditioner / heater according to the embodiment, which is a diagram for explaining a gas heating operation and a heat pump hot water heating operation.
１…圧縮機、 ２…切換え弁（四方弁）、 ３…室外熱交換器、 ４…第１の膨張弁、 ５…第２の膨張弁、 ６…減圧装置、 ７…室内熱交換器、 Ｓ…冷凍サイクル回路、 ８…第１の三方弁、 ９…温水加熱器、 １０…第２の三方弁、 Ｈａ…第１の並列流路、 １５…補助圧縮機、 １６…冷媒加熱器、 Ｈｂ…第２の並列流路、 ２０…ポンプ、 １８…二方弁、 Ｈｃ…補助バイパス路。 DESCRIPTION OF SYMBOLS 1 ... Compressor, 2 ... Switching valve (four-way valve), 3 ... Outdoor heat exchanger, 4 ... 1st expansion valve, 5 ... 2nd expansion valve, 6 ... Decompression device, 7 ... Indoor heat exchanger, S ... Refrigeration cycle circuit, 8 ... First three-way valve, 9 ... Hot water heater, 10 ... Second three-way valve, Ha ... First parallel flow path, 15 ... Auxiliary compressor, 16 ... Refrigerant heater, Hb ... Second parallel flow passage, 20 ... Pump, 18 ... Two-way valve, Hc ... Auxiliary bypass passage.
Claims (7)
第１の膨張弁および第２の膨張弁を直列に接続した減圧
装置と、室内熱交換器とを連通したヒートポンプ式の冷
凍サイクル回路と、 この冷凍サイクル回路の上記切換え弁と上記室内熱交換
器との間から分岐され、第１の三方弁と、温水加熱器
と、第２の三方弁とを介して上記第１の膨張弁と第２の
膨張弁との間に接続される第１の並列流路と、 上記第１の三方弁の第３のポートから分岐され、補助圧
縮機と、冷媒加熱器とを介して上記第２の三方弁の第３
のポートに接続される第２の並列流路とを具備したこと
を特徴とする給湯機兼用冷暖房機。1. A compressor, a switching valve, an outdoor heat exchanger,
A heat pump type refrigeration cycle circuit in which a decompression device in which a first expansion valve and a second expansion valve are connected in series and an indoor heat exchanger are in communication, the switching valve of the refrigeration cycle circuit and the indoor heat exchanger And a first three-way valve, a hot water heater, and a second three-way valve, and is connected between the first expansion valve and the second expansion valve. The third channel of the second three-way valve is branched from the parallel flow path and the third port of the first three-way valve via the auxiliary compressor and the refrigerant heater.
And a second parallel flow path connected to the port of 1.
減圧装置と、室内熱交換器とを連通したヒートポンプ式
の冷凍サイクル回路と、 この冷凍サイクル回路の上記切換え弁と上記室内熱交換
器との間から分岐され、第１の三方弁と、温水加熱器
と、第２の三方弁とを介して上記減圧装置と室内熱交換
器との間に接続される第１の並列流路と、 上記第１の三方弁の第３のポートから分岐され、冷媒加
熱器と、ポンプとを介して上記第２の三方弁の第３のポ
ートに接続される第２の並列流路とを具備したことを特
徴とする給湯機兼用冷暖房機。2. A compressor, a switching valve, an outdoor heat exchanger,
A heat pump type refrigeration cycle circuit that communicates a decompression device and an indoor heat exchanger, a branch between the switching valve of the refrigeration cycle circuit and the indoor heat exchanger, a first three-way valve, and hot water heating. And a first parallel flow path connected between the pressure reducing device and the indoor heat exchanger via a second device and a second three-way valve, and branched from a third port of the first three-way valve, A water heater / air conditioner that also includes a refrigerant heater and a second parallel flow path connected to a third port of the second three-way valve via a pump.
るとき、 上記第１の三方弁と第２の三方弁とを切換え制御して、
補助圧縮機−第１の三方弁−温水加熱器−第２の三方弁
−冷媒加熱器−補助圧縮機の独立した閉ループ回路を形
成すること、およびポンプ−冷媒加熱器−第１の三方弁
−温水加熱器−第２の三方弁−ポンプの独立した閉ルー
プ回路を形成することを特徴とする請求項１および請求
項２記載の給湯機兼用冷暖房機。3. When the refrigeration cycle circuit is in a heating operation state, the first three-way valve and the second three-way valve are switched and controlled,
Auxiliary compressor-first three-way valve-hot water heater-second three-way valve-refrigerant heater-forming an independent closed loop circuit of the auxiliary compressor, and pump-refrigerant heater-first three-way valve- The water heater / cooler as claimed in claim 1 or 2, wherein an independent closed loop circuit of the hot water heater, the second three-way valve, and the pump is formed.
るとき、 上記第１の三方弁と第２の三方弁とを切換え制御して、
補助圧縮機−第１の三方弁−温水加熱器−第２の三方弁
−冷媒加熱器−補助圧縮機の独立した閉ループ回路を形
成すること、およびポンプ−冷媒加熱器−第１の三方弁
−温水加熱器−第２の三方弁−ポンプの独立した閉ルー
プ回路を形成することを特徴とする請求項１および請求
項２記載の給湯機兼用冷暖房機。4. When the refrigeration cycle circuit is in a cooling operation state, switching control is performed between the first three-way valve and the second three-way valve,
Auxiliary compressor-first three-way valve-hot water heater-second three-way valve-refrigerant heater-forming an independent closed loop circuit of the auxiliary compressor, and pump-refrigerant heater-first three-way valve- The water heater / cooler as claimed in claim 1 or 2, wherein an independent closed loop circuit of the hot water heater, the second three-way valve, and the pump is formed.
の三方弁とを切換え制御して、圧縮機から吐出される高
圧冷媒を直接温水加熱器に導き温水加熱をなすことを特
徴とする請求項１および請求項２記載の給湯機兼用冷暖
房機。5. The switching valve, a first three-way valve and a second
The hot-water heater / cooler / heater according to claim 1 or 2, wherein the high-pressure refrigerant discharged from the compressor is directly introduced to the hot-water heater to perform hot-water heating by switching control of the three-way valve.
岐して、二方弁を介して上記第１の三方弁と温水加熱器
との間に連通される補助バイパス路を備え、 冷房運転時に、第１の三方弁と第２の三方弁とを制御し
て、室外熱交換器をバイパスし補助バイパス路を介して
上記温水加熱器に冷媒を導き、冷房運転と同時に温水加
熱することを特徴とする請求項１記載の給湯機兼用冷暖
房機。6. An auxiliary bypass path is provided which branches from between the switching valve and the outdoor heat exchanger and communicates with the first three-way valve and the hot water heater via a two-way valve, During the cooling operation, the first three-way valve and the second three-way valve are controlled to bypass the outdoor heat exchanger and guide the refrigerant to the hot water heater via the auxiliary bypass path to heat the hot water at the same time as the cooling operation. The hot and cold water supply / cooling machine according to claim 1, characterized in that.
ｆａの混合冷媒であることを特徴とする請求項１ないし
請求項６記載の給湯機兼用冷暖房機。7. The refrigerant used is R410A and R236.
7. The hot and cold water supply / cooling machine as claimed in claim 1, which is a mixed refrigerant of fa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33199695A JPH09170837A (en) | 1995-12-20 | 1995-12-20 | Hot water feeder serving also as cooler heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33199695A JPH09170837A (en) | 1995-12-20 | 1995-12-20 | Hot water feeder serving also as cooler heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09170837A true JPH09170837A (en) | 1997-06-30 |
Family
ID=18249981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP33199695A Pending JPH09170837A (en) | 1995-12-20 | 1995-12-20 | Hot water feeder serving also as cooler heater |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09170837A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004239550A (en) * | 2003-02-07 | 2004-08-26 | Matsushita Electric Ind Co Ltd | Heat exchanger and refrigeration cycle device |
| CN102393100A (en) * | 2011-11-16 | 2012-03-28 | 贵州循元生态能源科技有限公司 | Frost-free air source heat pump |
| CN102563968A (en) * | 2012-01-29 | 2012-07-11 | 刘雄 | Air conditioner refrigerating device |
| CN104990318A (en) * | 2015-07-23 | 2015-10-21 | 广东美的暖通设备有限公司 | Air-conditioning system |
| CN105180538A (en) * | 2015-08-14 | 2015-12-23 | 河南师范大学 | Power distribution device of inverter compressor and operation method of power distribution device |
| CN106016534A (en) * | 2016-05-23 | 2016-10-12 | 合肥工业大学 | Compound air conditioning system with natural cooling function |
| CN106051969A (en) * | 2016-05-23 | 2016-10-26 | 合肥工业大学 | Control method of combined type air-conditioning system with natural cooling function |
| CN107940806A (en) * | 2018-01-08 | 2018-04-20 | 东北电力大学 | A kind of double-compressor air injection enthalpy-increasing type air source heat pump system |
| CN110077194A (en) * | 2018-01-26 | 2019-08-02 | 河南森源重工有限公司 | A kind of electric car and its heat management system based on heat pump techniques |
| CN114484918A (en) * | 2022-01-28 | 2022-05-13 | 青岛海尔空调电子有限公司 | Air conditioning system, control method and device thereof and storage medium |
-
1995
- 1995-12-20 JP JP33199695A patent/JPH09170837A/en active Pending
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004239550A (en) * | 2003-02-07 | 2004-08-26 | Matsushita Electric Ind Co Ltd | Heat exchanger and refrigeration cycle device |
| CN102393100A (en) * | 2011-11-16 | 2012-03-28 | 贵州循元生态能源科技有限公司 | Frost-free air source heat pump |
| CN102563968A (en) * | 2012-01-29 | 2012-07-11 | 刘雄 | Air conditioner refrigerating device |
| CN104990318A (en) * | 2015-07-23 | 2015-10-21 | 广东美的暖通设备有限公司 | Air-conditioning system |
| CN105180538A (en) * | 2015-08-14 | 2015-12-23 | 河南师范大学 | Power distribution device of inverter compressor and operation method of power distribution device |
| CN105180538B (en) * | 2015-08-14 | 2017-12-22 | 河南师范大学 | Frequency-changeable compressor power distribution unit and its operation method |
| CN106051969A (en) * | 2016-05-23 | 2016-10-26 | 合肥工业大学 | Control method of combined type air-conditioning system with natural cooling function |
| CN106016534A (en) * | 2016-05-23 | 2016-10-12 | 合肥工业大学 | Compound air conditioning system with natural cooling function |
| CN106016534B (en) * | 2016-05-23 | 2018-08-03 | 合肥工业大学 | A kind of compound air-conditioning system with natural cooling function |
| CN106051969B (en) * | 2016-05-23 | 2018-08-28 | 合肥工业大学 | A kind of compound air-conditioning system with natural cooling function |
| CN107940806A (en) * | 2018-01-08 | 2018-04-20 | 东北电力大学 | A kind of double-compressor air injection enthalpy-increasing type air source heat pump system |
| CN110077194A (en) * | 2018-01-26 | 2019-08-02 | 河南森源重工有限公司 | A kind of electric car and its heat management system based on heat pump techniques |
| CN110077194B (en) * | 2018-01-26 | 2024-05-31 | 河南森源重工有限公司 | Electric automobile based on heat pump technology and thermal management system thereof |
| CN114484918A (en) * | 2022-01-28 | 2022-05-13 | 青岛海尔空调电子有限公司 | Air conditioning system, control method and device thereof and storage medium |
| CN114484918B (en) * | 2022-01-28 | 2024-05-10 | 青岛海尔空调电子有限公司 | Air conditioning system, control method and device thereof, and storage medium |
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