JPS59115945A - Heat pump device - Google Patents

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【発明の詳細な説明】 （産業上の利用分野） 本発明は非共沸混合冷媒を用いる冷暖房用の熱ポンプ装
置に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a heat pump device for heating and cooling using a non-azeotropic mixed refrigerant.

（従来例の構成とその問題点） 熱ポンプ装置の効率や能力の改善、並びに機能の拡大を
図るだめに非共沸混合冷媒を用いることが有効であるこ
とが知られている。これは非共沸混合冷媒では蒸発およ
び凝縮の過程で気相部と液相部の組成が途次変化し、そ
れに伴って生じる温度変化を利用するものである。しか
しこの効果を十分に利用するためには熱交換器内におい
て混合冷媒を空気や水等の外部流体の出ロ力向から入口
方向へ流し両者の流れをできるだけ対向流に近づけるこ
とが必要であることも捷だ知られている。(Constitution of Conventional Example and its Problems) It is known that it is effective to use a non-azeotropic mixed refrigerant to improve the efficiency and capacity of a heat pump device, as well as expand its functions. This method utilizes the temperature change that occurs as the composition of the gas phase and liquid phase gradually changes during the evaporation and condensation process of a non-azeotropic mixed refrigerant. However, in order to take full advantage of this effect, it is necessary to flow the mixed refrigerant inside the heat exchanger from the outlet direction of the external fluid such as air or water to the inlet direction, making the two flows as close to opposing flows as possible. It is also known as Kade.

第１図に非共沸混合冷媒を用いだ熱ポンス０装置の従来
例を示す。第１図において１は圧縮機、２は利用側熱交
換器、３は熱源側熱交換器、４，５はファン、６は絞り
装置、７は四方弁である。このように構成された熱ポン
プ装置は暖房運転時には熱交換器２，３共に外部流体と
混合冷媒との流れ方向が対向流に近くなっているが、冷
房運転時に（は上記流れ方向が逆になり並向流に近くな
ってし捷うという問題点があった。FIG. 1 shows a conventional example of a zero heat pump device using a non-azeotropic mixed refrigerant. In FIG. 1, 1 is a compressor, 2 is a heat exchanger on the utilization side, 3 is a heat exchanger on the heat source side, 4 and 5 are fans, 6 is a throttle device, and 7 is a four-way valve. In the heat pump device configured in this way, during heating operation, the flow directions of the external fluid and the mixed refrigerant in both heat exchangers 2 and 3 are close to counterflow, but during cooling operation (the above flow direction is reversed). There was a problem in that the flow became almost parallel and counter-current.

（発明の目的） 本発明の目的は冷房、暖房いずれの運転時でも利用側熱
交換器と熱源側熱交換器において、混合冷媒と外部流体
との流れ方向が変わらず常に対向流に近くなる冷媒回路
を有する熱ポンプ装置を提供することである。(Objective of the Invention) The object of the present invention is to provide a refrigerant in which the flow direction of the mixed refrigerant and the external fluid does not change in the user-side heat exchanger and the heat source-side heat exchanger during either cooling or heating operation, and the flow is always close to counterflow. An object of the present invention is to provide a heat pump device having a circuit.

（発明の構成） 上記目的を達成するため本発明では、圧縮機あるいは熱
交換器の入口と出口にパイ・ぐス配管や弁等を設け、冷
暖房運転の切り換え時に同時に熱交換器前後の冷媒回路
を逆に切り換えちれるようにし、熱交換器内での外部流
体に対する冷媒の流れの方向が冷房、暖房いずれの運転
時でも常に対向流に近くなるようにしたものである。(Structure of the Invention) In order to achieve the above object, the present invention provides pipes, valves, etc. at the inlet and outlet of the compressor or heat exchanger, so that the refrigerant circuit before and after the heat exchanger is simultaneously installed when switching between cooling and heating operations. The flow direction of the refrigerant relative to the external fluid within the heat exchanger is always close to the opposite flow during either cooling or heating operation.

（実施例の説明） 第２図に開閉弁を用いた場合の本発明の一実施例を示す
。図において８〜１３は開閉弁、１４〜】６はバイパス
配管で図示のように配設され、開閉弁８　、９　、１０
は暖房運転時には開、冷房運転時には閉であり、開閉弁
１．１　、　］　２　、１．３はこれと逆になるように
切り換えるものである。ファン４．５は冷房、暖房いず
れの連転時でも同一方向に回転し外部流体の流れ方向は
変らない。なお、この場合絞り装置６の利用は暖房運転
時だけになるのでこれとは別に冷房運転時用としてパイ
・ぐス配管１５に絞り装置６′を設けている。このよう
に冷媒回路を構成することにより、冷房、暖房いずれの
運転時でも利用側熱交換器２、熱＃側熱交換器３におけ
る混合冷媒の流れ方向が変らず、常に混合冷媒は外部流
体の出口方向から入口方向へ流れ、対向流に近い流れを
維持することが可能となる。(Description of Embodiment) FIG. 2 shows an embodiment of the present invention in which an on-off valve is used. In the figure, 8 to 13 are on-off valves, 14 to 6 are bypass piping, which are arranged as shown in the figure, and on-off valves 8, 9, 10
is open during heating operation and closed during cooling operation, and the on-off valves 1.1, ] 2 and 1.3 are switched to reverse this. The fan 4.5 rotates in the same direction during both cooling and heating, and the flow direction of the external fluid does not change. In this case, since the throttle device 6 is used only during heating operation, a throttle device 6' is separately provided in the pipe/gas pipe 15 for use during cooling operation. By configuring the refrigerant circuit in this way, the flow direction of the mixed refrigerant in the user side heat exchanger 2 and the heat # side heat exchanger 3 does not change during either cooling or heating operation, and the mixed refrigerant is always connected to the external fluid. The flow flows from the outlet direction to the inlet direction, making it possible to maintain a flow close to counterflow.

第３図は四方弁を用いた場合の本発明の実施例を示した
もので、３つの四方弁１７　、　］　８　、　］、　９
をそれぞれ図示のように配設し、これらの四方弁を介し
て冷媒回路を構成している。本発明はこのように四方弁
を用いても実施でき、開閉弁を用い／、−、場合と同等
の効果を発揮する。なお、この場合（ｄ、開閉弁を用い
る場合のように絞り装置を別に設ける必”’Ｉ（Ｉ」、
ない。FIG. 3 shows an embodiment of the present invention using four-way valves, including three four-way valves 17, ] 8, ], 9.
are arranged as shown in the figure, and a refrigerant circuit is constructed through these four-way valves. The present invention can be implemented using a four-way valve as described above, and the same effect as when using an on-off valve is achieved. In addition, in this case (d), it is necessary to separately provide a throttle device as in the case of using an on-off valve.
do not have.

以上、開閉弁を用いる場合と四方弁を用いる場合の実施
例をそれぞれ示したが、本発明はこれに限るものではな
く、さらに開閉弁と四方弁を組み合せて構成してもかま
わない。−また本発明は熱交換器を数個的列もしくは並
列に接続した場合でも適用しうることは訂９１でもない
。Although embodiments in which an on-off valve is used and a four-way valve are shown above, the present invention is not limited thereto, and may be configured by combining an on-off valve and a four-way valve. - Furthermore, it is not surprising that the present invention can be applied even when several heat exchangers are connected in rows or in parallel.

（発明の効果） 以上説明したように、本発明によれば熱ポンフ０装置の
冷用、暖ツノ３−いずれの運転時でも混合冷媒と外部流
体との流れ方向を常に対向流に近づけることかでき、り
・熱ポンプ装置に非共沸混合冷媒を用いる効果を子分に
発揮することが可能となる。(Effects of the Invention) As explained above, according to the present invention, the flow directions of the mixed refrigerant and the external fluid can always be brought close to opposing flows during either cooling or warming operation of the heat pump device. This makes it possible to demonstrate the effect of using a non-azeotropic mixed refrigerant in a heat pump device.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は非共沸混合冷媒を用いた熱ポンプ装置の従来例
を示す冷媒回路図、第２図は本発明による熱、１″ンゾ
装置の一実施例を示す冷媒回路図、第３図は本発明の他
の実施例を示す冷媒回路図である。 １・圧縮機、２・・利用側熱交換機、３・・・熱源側熱
交換器、４，５・・・ファン、６，６′・・絞り′呑双
、ｓ〜１３・・開閉弁、１４〜１６・パイノ’？ス配管
、１７〜１９・・四方弁。 第１図 −−グＹ仰努（ヤト 第２図Fig. 1 is a refrigerant circuit diagram showing a conventional example of a heat pump device using a non-azeotropic mixed refrigerant; Fig. 2 is a refrigerant circuit diagram showing an example of a heat pump device according to the present invention; The figure is a refrigerant circuit diagram showing another embodiment of the present invention. 1. Compressor, 2. Utilization side heat exchanger, 3. Heat source side heat exchanger, 4, 5. Fan, 6. 6'...diaphragm' double, s~13...open/close valve, 14~16...pine'?s piping, 17~19...four-way valve.

Claims (3)

【特許請求の範囲】[Claims] （１）圧縮機、利用側熱交換器、絞り装置および熱６ｉ
ｄ　（ｌｌｌＩ熱交換熱交換器数り非共沸混合冷媒を用
いる熱７１？ツノ装置において、冷房、暖房いずれの運
転時であっても上記内熱交換器における外部流体と混合
冷媒の流れの方向が常に対向流に近くなるように、混合
冷媒を外部流体の出ロ力向から入口方向へ流す冷媒回路
を構成したことを特徴とする熱ポンプ装置。(1) Compressor, user side heat exchanger, expansion device and heat 6i
d (lllI heat exchange heat exchanger number) In a heat exchanger using a non-azeotropic mixed refrigerant, the direction of flow of the external fluid and mixed refrigerant in the internal heat exchanger, regardless of whether the operation is cooling or heating. 1. A heat pump device comprising a refrigerant circuit configured to flow a mixed refrigerant from an output direction of an external fluid to an inlet direction so that the refrigerant flows are always close to opposing flows. （２）　　ｊ：、記冷媒回路を圧縮機の人口−と出口に
・くイ・ぐス配管と開閉弁および絞り装置を設けること
により構成したことを特徴とする特許請求の範囲第（１
）項記載の熱ポンプ装置。(2) j: Claim No. 1 characterized in that the refrigerant circuit is constructed by providing pipes, an on-off valve, and a throttle device at the outlet and outlet of the compressor.
) The heat pump device described in section 2. （３）　　ｌ記冷媒回路を圧縮機の入口と出口および上
記内熱交換器の入口と出口に四方弁等の切換え弁を設け
ることにより構成したことを特徴・とする！Ｉ”ｆ　Ｉ
ＰＩ″、Ｘｌ−求の範囲第（１）項記載の熱ｌンブ装置
。(3) The refrigerant circuit mentioned above is constructed by providing switching valves such as four-way valves at the inlet and outlet of the compressor and the inlet and outlet of the internal heat exchanger! I"f I
PI'', Xl - The heating device according to item (1).