JPH0629653Y2 - Heat exchange system - Google Patents
Heat exchange systemInfo
- Publication number
- JPH0629653Y2 JPH0629653Y2 JP17619787U JP17619787U JPH0629653Y2 JP H0629653 Y2 JPH0629653 Y2 JP H0629653Y2 JP 17619787 U JP17619787 U JP 17619787U JP 17619787 U JP17619787 U JP 17619787U JP H0629653 Y2 JPH0629653 Y2 JP H0629653Y2
- Authority
- JP
- Japan
- Prior art keywords
- heat exchanger
- heat
- outdoor
- air
- refrigerant
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/52—Heat recovery pumps, i.e. heat pump based systems or units able to transfer the thermal energy from one area of the premises or part of the facilities to a different one, improving the overall efficiency
Description
【考案の詳細な説明】 （産業上の利用分野） 本考案は空調用ヒートポンプサイクルと冷凍サイクルと
の間で熱交換を行う熱交換システムに関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a heat exchange system for exchanging heat between an air conditioning heat pump cycle and a refrigeration cycle.
（従来の技術） 従来、この種の熱交換システムを適用したオープンショ
ーケースとして第２図に示すものが知られている。すな
わち、店舗１内に設置されたオープンショーケース本体
（以下、単にケース本体と称す）２の背面及び上面にダ
クト３を設けるとともに、該ケース本体２の上面に空調
用ヒートポンプサイクルの室内熱交換器４及び送風機５
を設け、該ケース本体２内に庫内冷却用の蒸発器６を設
けたものである。(Prior Art) Conventionally, an open showcase to which this type of heat exchange system is applied is shown in FIG. That is, the ducts 3 are provided on the back surface and the upper surface of the open showcase body (hereinafter, simply referred to as a case body) 2 installed in the store 1, and the indoor heat exchanger of the air conditioning heat pump cycle is provided on the upper surface of the case body 2. 4 and blower 5
And an evaporator 6 for cooling the inside of the case is provided in the case body 2.
また、オープンショーケースの冷凍サイクル１０と空調
用ヒートポンプサイクルとの熱交換システムは、第３図
に示すように、圧縮機１１、凝縮器１２、膨張弁１３、
前記蒸発器６及びアーキュムレータ１４を順次連結して
なるとともに、該圧縮機１１の吐出側と該凝縮器１２と
の間の冷媒管路の途中に該冷媒管路と並列にバイパス管
路１５が挿入されている。このバイパス管路１５には前
記室内熱交換器４及び逆止弁１６が設けられている。ま
た、切替え弁１７を介して該圧縮機１１の冷媒を室内熱
交換器４及び凝縮器１２に流したり、或いは、凝縮器１
２にのみ流すようになっている。Further, as shown in FIG. 3, the heat exchange system between the refrigeration cycle 10 of the open showcase and the heat pump cycle for air conditioning has a compressor 11, a condenser 12, an expansion valve 13,
The evaporator 6 and the accumulator 14 are sequentially connected, and a bypass line 15 is provided in the refrigerant line between the discharge side of the compressor 11 and the condenser 12 in parallel with the refrigerant line. Has been inserted. The bypass pipe 15 is provided with the indoor heat exchanger 4 and the check valve 16. Further, the refrigerant of the compressor 11 is caused to flow to the indoor heat exchanger 4 and the condenser 12 via the switching valve 17, or the condenser 1
It is designed to only flow to 2.
このような冷凍サイクル１０において、切替え弁１７を
介して室内熱交換器４側に冷媒を流通させるときは、該
室内熱交換器４にて排熱作用が行なわれる。そこで、前
記送風機５を駆動するときは、店舗１の上部に滞留する
暖気はダクト３内に流通し、室内熱交換器４にて再度加
温され、ケース本体２の下部から吹出される。これによ
り、ケース本体２の前側下部に有するコールドアイル
（ケース本体２の前面から洩れた冷気の通路）Ａの冷気
が吹き飛ばされたり或いは加温され、コールドアイルＡ
が解消される。In such a refrigeration cycle 10, when the refrigerant is circulated to the indoor heat exchanger 4 side via the switching valve 17, the indoor heat exchanger 4 performs the exhaust heat action. Therefore, when the blower 5 is driven, the warm air staying in the upper part of the store 1 flows into the duct 3, is heated again by the indoor heat exchanger 4, and is blown out from the lower part of the case body 2. As a result, the cold air of the cold aisle (the passage of the cold air leaking from the front surface of the case main body 2) A at the lower front side of the case main body 2 is blown off or heated, and the cold aisle A
Is eliminated.
（考案が解決しようとする問題点） しかしながら、このような熱交換システムでは冬期にお
いて外気温度が低くなり、オープンショーケースの冷却
負荷が低くなり、オープンショーケースの冷却負荷が小
さくなるときは、これに伴い前記室内熱交換器４の排熱
作用も低下し、コールドアイルＡを十分に解消すること
ができないという問題点を有していた。(Problems to be solved by the invention) However, in such a heat exchange system, when the outside air temperature becomes low in the winter, the cooling load of the open showcase becomes low, and the cooling load of the open showcase becomes small, this As a result, the heat exhausting effect of the indoor heat exchanger 4 is also lowered, and there is a problem that the cold aisle A cannot be sufficiently eliminated.
本考案の目的は前記従来の問題点に鑑み、排熱を有効に
利用するとともに、温度の低下する冬期等においてもコ
ールドアイルを十分に解消することができる熱交換シス
テムを提供することにある。In view of the above-mentioned conventional problems, an object of the present invention is to provide a heat exchange system that can effectively use exhaust heat and can sufficiently eliminate cold aisle even in winter when the temperature decreases.
（問題点を解決するための手段） 本考案は前記問題点を解決するため、店舗内の冷暖房を
行う空調用ヒートポンプサイクルと、オープンショーケ
ースのケース本体内を冷却する冷凍サイクルとを備え、
該空調用ヒートポンプサイクルと該冷凍サイクルとの間
で熱交換を行う熱交換システムにおいて、前記ケース本
体の周側面には上端が該ケース本体の上方に臨み、下端
が該ケース本体の下部前方に臨むダクトを設置し、前記
冷凍サイクルはその圧縮機の吐出側と凝縮器との間の冷
媒管路の途中に、排熱器を有するバイパス管路を該冷媒
管路と並列に挿入するとともに、該バイパス管路への冷
媒流通を開閉制御する第１の弁機構を設け、前記空調用
ヒートポンプサイクルはその室内側に前記ダクト内に設
置された室内熱交換器を有するとともに、該ダクト内に
は該ケース本体の上方近傍の空気を該室内熱交換器を通
して該ケース本体の下部前方に送風、或いは、該ケース
本体の下部前方の空気を該室内熱交換器に通して該ケー
ス本体の上方に送風する送風機を設置し、前記空調用ヒ
ートポンプサイクルはその室外側に、前記排熱器の排熱
と熱交換する第１の室外熱交換器と、屋外空気と熱交換
する第２の室外熱交換器とを設けるとともに、該各室外
熱交換器に冷媒を流通・停止させる第２の弁機構をそれ
ぞれ設けたことを特徴とする。(Means for Solving Problems) In order to solve the above problems, the present invention comprises an air conditioning heat pump cycle for cooling and heating the inside of a store, and a refrigeration cycle for cooling the case body of an open showcase,
In a heat exchange system for exchanging heat between the air conditioning heat pump cycle and the refrigeration cycle, an upper end of the peripheral side surface of the case body faces above the case body, and a lower end faces front of a lower portion of the case body. A duct is installed, and in the refrigeration cycle, in the middle of the refrigerant line between the discharge side of the compressor and the condenser, a bypass line having an exhaust heat exchanger is inserted in parallel with the refrigerant line, and A first valve mechanism that controls opening and closing of the refrigerant flow to the bypass pipeline is provided, and the air conditioning heat pump cycle has an indoor heat exchanger installed in the duct on the indoor side thereof, and the indoor heat exchanger is installed in the duct. The air near the upper part of the case body is blown to the lower front part of the case body through the indoor heat exchanger, or the air in the lower front part of the case body is passed to the upper part of the case body through the indoor heat exchanger. And a second outdoor heat exchanger for exchanging heat with the exhaust heat of the exhaust heat exchanger, and a second outdoor heat exchanger for exchanging heat with the outdoor air of the heat pump cycle for air conditioning. And a second valve mechanism for circulating and stopping the refrigerant in each of the outdoor heat exchangers.
（作用） 本考案によれば、冷凍サイクルを駆動して第１の弁機構
を介して排熱器に冷媒を循環させるときは該排熱器にて
排熱が行なわれる。さらに、空調用ヒートポンプサイク
ルを駆動して室内熱交換器を凝縮器として機能させ、第
２の弁機構を介して第１の室外熱交換器を蒸発器として
機能させるときは、前記排熱器の排熱が第１の室外熱交
換器に伝導し、更に室内熱交換器に熱移動しこの室内熱
交換器で排熱される。(Operation) According to the present invention, when the refrigerating cycle is driven to circulate the refrigerant through the first valve mechanism to the heat exhaust device, the heat exhaust is performed by the heat exhaust device. Furthermore, when the heat pump cycle for air conditioning is driven so that the indoor heat exchanger functions as a condenser and the first outdoor heat exchanger functions as an evaporator via the second valve mechanism, The exhaust heat is conducted to the first outdoor heat exchanger, further transferred to the indoor heat exchanger, and is exhausted in the indoor heat exchanger.
また、前記第１の室外熱交換器の代りに第２の室外熱交
換器を蒸発器とし機能させるときは、該第２の室外熱交
換器にて吸収された熱が室内熱交換器で排熱される。When the second outdoor heat exchanger is used as an evaporator instead of the first outdoor heat exchanger, the heat absorbed by the second outdoor heat exchanger is discharged by the indoor heat exchanger. Be heated.
このように室内熱交換器で排出された熱は、送風機の駆
動によりダクトを介してケース本体の下部前方に送風さ
れたり、或いは、ケース本体の上方に送風される。The heat discharged from the indoor heat exchanger is blown to the front of the lower part of the case main body through the duct by the drive of the blower, or is blown above the case main body.
（実施例） 第１図及び第４図（ａ）（ｂ）は本考案の第１の実施例
を示すもので、従来例と同一構成部分は同一符号をもっ
て表わす。即ち、１は店舗、２はオープンショーケース
のケース本体、３はダクト、４は室内熱交換器、５は可
逆転駆動の送風機、６は蒸発器、１０はケース本体２の
庫内を冷却する冷凍サイクル、１１は圧縮機、１２は凝
縮器、１３は膨張弁、１４はアキュームレータ、１５は
バイパス管路、１６は逆止弁、１７は切替え弁である。
１８は該バイパス管１５に設けられた排熱器で、該切替
え弁１７の切替えにより該圧縮機１１からの冷媒が流通
し、冷媒の排熱作用が行なわれる。(Embodiment) FIGS. 1 and 4 (a) and (b) show a first embodiment of the present invention, in which the same components as in the conventional example are denoted by the same reference numerals. That is, 1 is a store, 2 is a case body of an open showcase, 3 is a duct, 4 is an indoor heat exchanger, 5 is a reversible drive fan, 6 is an evaporator, and 10 is a compartment for cooling the case body 2. Refrigeration cycle, 11 is a compressor, 12 is a condenser, 13 is an expansion valve, 14 is an accumulator, 15 is a bypass line, 16 is a check valve, and 17 is a switching valve.
Reference numeral 18 denotes a heat exhauster provided in the bypass pipe 15, and the refrigerant from the compressor 11 is circulated by switching the switching valve 17 to perform the heat exhausting operation of the refrigerant.
２０は店舗１内の冷暖房を行う空調用ヒートポンプサイ
クルを示すもので、圧縮機２１と、四方弁２２と、前記
室内熱交換器４と、膨張弁２３と、第１及び第２の室外
熱交換器２４，２５と、アキュムレータ２６と、２個の
常閉電磁弁２７ａ，２７ｂと、逆止弁２８と、各送風機
５，２９とから構成している。四方弁２２の第１流通口
２２ａは圧縮機２１の吐出側に、第２流通口２２ｂはア
キュムレータ２６を介して該圧縮機２１の吸入側に接続
している。該四方弁２２の第３流通口２２ｃと膨張弁２
３との間には前記室内熱交換器４を接続し、第４流通口
２２ｄと膨張弁２３との間には各室外熱交換器２４，２
５が並列に接続している。また、第１の室外熱交換器２
４は前記排熱器１８と熱的に結合した冷媒・冷媒熱交換
器にて構成され、第２の室外熱交換器２５は屋外空気と
熱交換を行なう空気・冷媒熱交換器にて構成されてい
る。前記電磁弁２７ａは第１の室外熱交換器２４への冷
媒流通を、前記電磁弁２７ｂは第２の室外熱交換器２５
への冷媒流通を開閉制御し、前記逆止弁２８は前記第４
流通口２２ｄから第１の室外熱交換器２４への冷媒流通
を規制している。Reference numeral 20 denotes an air conditioning heat pump cycle for cooling and heating the inside of the store 1, which includes a compressor 21, a four-way valve 22, the indoor heat exchanger 4, an expansion valve 23, and first and second outdoor heat exchanges. It comprises a device 24, 25, an accumulator 26, two normally closed electromagnetic valves 27a, 27b, a check valve 28, and blowers 5, 29. The first flow port 22a of the four-way valve 22 is connected to the discharge side of the compressor 21, and the second flow port 22b is connected to the suction side of the compressor 21 via an accumulator 26. Expansion valve 2 and third flow port 22c of the four-way valve 22
3 is connected to the indoor heat exchanger 4, and the outdoor heat exchangers 24 and 2 are connected between the fourth circulation port 22d and the expansion valve 23.
5 are connected in parallel. In addition, the first outdoor heat exchanger 2
Reference numeral 4 is a refrigerant / refrigerant heat exchanger thermally coupled to the exhaust heat exchanger 18, and second outdoor heat exchanger 25 is an air / refrigerant heat exchanger for exchanging heat with outdoor air. ing. The electromagnetic valve 27a allows the refrigerant to flow into the first outdoor heat exchanger 24, and the electromagnetic valve 27b causes the second outdoor heat exchanger 25 to flow.
The flow of the refrigerant to and from the fourth check valve is controlled to be the fourth check valve.
Refrigerant circulation from the circulation port 22d to the first outdoor heat exchanger 24 is regulated.
次に、冷凍サイクル１０と空調ヒートポンプサイクル２
０との熱交換システムにおける冷媒及び空気の流れを各
季節毎に説明する。Next, the refrigeration cycle 10 and the air conditioning heat pump cycle 2
The flow of refrigerant and air in the heat exchange system with 0 will be described for each season.
春・秋の中間期は冷凍サイクル１０において圧縮機１１
からの冷媒を切替え弁１７により第１図実線矢印に示す
ように循環させ、排熱器１８に冷媒を流通させる。ま
た、空調用ヒートポンプサイクル２０においては電磁弁
２７ａを開となし、電磁弁２７ｂを閉となす。これによ
り、圧縮機２１からの冷媒は第１図一点鎖線矢印に示す
ように、第１の室外熱交換器２４（蒸発器）に流通して
該排熱器１８の排熱を吸熱し、更に室内熱交換器４にて
これを排熱する。この排熱は第４図（ａ）実線矢印に示
す如くダクト３内に吸入されたケース本体２の上方の空
気を加温し、該ケース本体２の下部から前方に吹出され
る。従って、オープンショーケースの排熱を利用してコ
ールドアイルＡを解消している。Compressor 11 in refrigeration cycle 10 in the middle of spring and autumn
The refrigerant from the above is circulated by the switching valve 17 as shown by the solid line arrow in FIG. In the heat pump cycle 20 for air conditioning, the solenoid valve 27a is opened and the solenoid valve 27b is closed. As a result, the refrigerant from the compressor 21 flows into the first outdoor heat exchanger 24 (evaporator) to absorb the exhaust heat of the exhaust heat exchanger 18, as shown by the dashed-dotted line arrow in FIG. The indoor heat exchanger 4 exhausts this heat. The exhaust heat heats the air above the case body 2 sucked into the duct 3 as shown by the solid arrow in FIG. 4 (a), and is blown forward from the lower part of the case body 2. Therefore, the cold aisle A is eliminated by utilizing the exhaust heat of the open showcase.
冬期の冷凍サイクル１０においては、第１図破線矢印に
示すように切替え弁１７を介して凝縮器１２にのみ冷媒
を流通させる。また、空調用ヒートポンプサイクル２０
においては電磁弁２７ａを閉となし、電磁弁２７ｂを開
となす。これにより、圧縮機２１の冷媒は第１図二点鎖
線矢印に示すように、第２の室外熱交換器２５に流通し
て外気から吸熱し、室内熱交換器４にて排熱する。即
ち、この場合はオープンショーケースの排熱を利用する
ことなく屋外空気から吸熱しコールドアイルＡを解消す
る。In the refrigeration cycle 10 in winter, as shown by the broken line arrow in FIG. 1, the refrigerant is allowed to flow only through the switching valve 17 to the condenser 12. In addition, the heat pump cycle for air conditioning 20
In, the electromagnetic valve 27a is closed and the electromagnetic valve 27b is opened. As a result, the refrigerant of the compressor 21 flows into the second outdoor heat exchanger 25, absorbs heat from the outside air, and is exhausted from the indoor heat exchanger 4, as shown by the double-dashed line arrow in FIG. That is, in this case, the cold aisle A is eliminated by absorbing heat from the outdoor air without utilizing the exhaust heat of the open showcase.
このように冬期においてオープンショーケースの排熱を
利用しないとするのは、次ぎの理由によるものである。The reason why the exhaust heat of the open showcase is not used in the winter season is as follows.
即ち、冬期においては外気温度が低いため、店舗１内に
設置されているオープンショーケースの雰囲気温度も低
下している。従って、冬期においては、この雰囲気温度
とオープンショーケースの設定温度との差が小さく、そ
の分オープンショーケースの冷却負荷が小さくなってい
る。このようなことから、ケース本体２内を冷却する冷
凍サイクル１０は冬期においては低出力で運転される。
この低出力運転に伴い、排熱器１８の排熱量が少なくな
り、室内熱交換器４の放熱量も少なくなるため、コール
ドアイルＡを解消することができない。他方、屋外空気
の温度も低くなっているが、その熱容量が大きいことか
ら、第２の室外熱交換器２５にて屋外空気から十分に吸
熱され、室内熱交換器４において所望の放熱量が得られ
ることを考慮したものである。尚、空気の流れは中間期
の場合と同様である。That is, since the outside air temperature is low in winter, the ambient temperature of the open showcase installed in the store 1 is also low. Therefore, in the winter, the difference between the ambient temperature and the set temperature of the open showcase is small, and the cooling load of the open showcase is correspondingly small. For this reason, the refrigeration cycle 10 that cools the inside of the case body 2 is operated at low output during the winter.
With this low output operation, the amount of heat exhausted from the heat exhauster 18 decreases and the amount of heat released from the indoor heat exchanger 4 also decreases, so the cold aisle A cannot be eliminated. On the other hand, although the temperature of the outdoor air is also low, since the heat capacity thereof is large, the second outdoor heat exchanger 25 sufficiently absorbs heat from the outdoor air, and the indoor heat exchanger 4 obtains a desired heat radiation amount. Is taken into consideration. The air flow is the same as in the middle period.
夏期の冷凍サイクル１０においては前記冬期と同様に動
作させる。また、空調用ヒートポンプサイクル２０にお
いては、冬期と同様に各電磁弁２７ａ，２７ｂを動作さ
せ、更に、室内熱交換器４を蒸発器として、第２の室外
熱交換器２５を凝縮器としてそれぞれ動作させる。即
ち、圧縮機２１の冷媒を第１図三点鎖線矢印に示すよう
に循環させ、かつ、前記送風機５を逆転させる。これに
より、第４図（ｂ）実線矢印に示すようにコールドアイ
ルＡの冷気がダクト３内に吸込まれ、更に室内熱交換器
４にて冷却され店舗１内に吹出され、店舗１内の除湿又
は冷房を行なう。The refrigeration cycle 10 in the summer is operated in the same manner as in the winter. In the air conditioning heat pump cycle 20, the solenoid valves 27a and 27b are operated as in the winter season, and the indoor heat exchanger 4 operates as an evaporator and the second outdoor heat exchanger 25 operates as a condenser. Let That is, the refrigerant of the compressor 21 is circulated as shown by the three-dot chain line arrow in FIG. 1, and the blower 5 is rotated in the reverse direction. As a result, the cold air of the cold aisle A is sucked into the duct 3 as shown by the solid line arrow in FIG. 4 (b), further cooled by the indoor heat exchanger 4 and blown out into the store 1 to dehumidify the inside of the store 1. Or, perform cooling.
第５図は本考案の第２の実施例を示すもので、前記各室
外熱交換器２４，２５を四方弁２２と膨張弁２３との間
に直列に配列したものである。また、各電磁弁２７ａ，
２７ｂを該室外熱交換器２４，２５と並列に配列し、各
室外熱交換器２４，２５間と各電磁弁２７ａ，２７ｂ間
とを接続している。本実施例によれば、該電磁弁２７ａ
を閉と、該電磁弁２７ｂを開とするときは第１の室外熱
交換器２４に冷媒が流通し、これとは逆に該電磁弁２７
ａを開と、該電磁弁２７ｂを閉とするときは第２の室外
熱交換器２５に冷媒が流通する。尚、その他の構成、効
果は前記第１の実施例と同様である。FIG. 5 shows a second embodiment of the present invention in which the outdoor heat exchangers 24 and 25 are arranged in series between the four-way valve 22 and the expansion valve 23. In addition, each solenoid valve 27a,
27b is arranged in parallel with the outdoor heat exchangers 24 and 25, and the outdoor heat exchangers 24 and 25 are connected to the electromagnetic valves 27a and 27b. According to this embodiment, the solenoid valve 27a
When the solenoid valve 27b is opened, the refrigerant flows through the first outdoor heat exchanger 24, and conversely, the solenoid valve 27b is closed.
When a is opened and the electromagnetic valve 27b is closed, the refrigerant flows through the second outdoor heat exchanger 25. The other configurations and effects are similar to those of the first embodiment.
（考案の効果） 以上説明したように、本考案によれば、春・秋の中間期
は各弁機構により排熱器及び第１の室外熱交換器に冷媒
を循環させ、この排熱器と第１の室外熱交換器との熱交
換により、オープンショーケースの排熱が室内熱交換器
に熱移動し、コールドアイルの解消に有効に利用される
という利点を有する。(Effect of the Invention) As described above, according to the present invention, in the intermediate period of spring and autumn, the refrigerant is circulated through the exhaust heat exchanger and the first outdoor heat exchanger by each valve mechanism, Due to the heat exchange with the first outdoor heat exchanger, there is an advantage that the exhaust heat of the open showcase is transferred to the indoor heat exchanger and is effectively used for eliminating the cold aisle.
また、冬期の如く排熱器の排熱量が少ないときは第２の
室外熱交換器にて屋外空気と熱交換させ、この屋外空気
から吸収した熱によりコールドアイルを確実に解消する
ことができるという利点を有する。In addition, when the amount of heat exhausted from the exhaust heat exchanger is small as in the winter, the second outdoor heat exchanger is used to exchange heat with the outdoor air, and the cold aisle can be reliably eliminated by the heat absorbed from the outdoor air. Have advantages.
第１図及び第４図（ａ）（ｂ）は本考案の第１の実施例
を示すもので、第１図は熱交換システムの冷媒回路図、
第２図及び第３図は従来例を示すもので、第２図はオー
プンショーケースの空気の流れを示す概略図、第３図は
熱交換システムの冷媒回路図、第４図（ａ）は中間期及
び冬期における空気の流れを示す概略図、第４図（ｂ）
は夏期における空気の流れを示す概略図、第５図は本考
案の第２の実施例に係る熱交換システムの冷媒回路図で
ある。 図中、２…ケース本体、３…ダクト、４…室内熱交換
器、５…送風機、１０…冷凍サイクル、１５…バイパス
管路、１７…切替え弁、１８…排熱器、２０…空調用ヒ
ートポンプサイクル、２４…第１の室外熱交換器、２５
…第２の室外熱交換器、２７ａ，２７ｂ…電磁弁。1 and 4 (a) and (b) show a first embodiment of the present invention. FIG. 1 is a refrigerant circuit diagram of a heat exchange system,
2 and 3 show a conventional example, FIG. 2 is a schematic view showing the flow of air in an open showcase, FIG. 3 is a refrigerant circuit diagram of a heat exchange system, and FIG. 4 (a) is Schematic diagram showing the flow of air in the middle and winter seasons, FIG. 4 (b)
Is a schematic view showing the flow of air in the summer, and FIG. 5 is a refrigerant circuit diagram of a heat exchange system according to a second embodiment of the present invention. In the figure, 2 ... Case body, 3 ... Duct, 4 ... Indoor heat exchanger, 5 ... Blower, 10 ... Refrigeration cycle, 15 ... Bypass line, 17 ... Switching valve, 18 ... Exhaust device, 20 ... Heat pump for air conditioning Cycle, 24 ... First outdoor heat exchanger, 25
... Second outdoor heat exchanger, 27a, 27b ... Solenoid valve.
Claims (3)
サイクルと、オープンショーケースのケース本体内を冷
却する冷凍サイクルとを備え、該空調用ヒートポンプサ
イクルと該冷凍サイクルとの間で熱交換を行う熱交換シ
ステムにおいて、 前記ケース本体の周側面には上端が該ケース本体の上方
に臨み、下端が該ケース本体の下部前方に臨むダクトを
設置し、 前記冷凍サイクルはその圧縮機の吐出側と凝縮器との間
の冷媒管路の途中に、排熱器を有するバイパス管路を該
冷媒管路と並列に挿入するとともに、該バイパス管路へ
の冷媒流通を開閉制御する第１の弁機構を設け、 前記空調用ヒートポンプサイクルはその室内側に前記ダ
クト内に設置された室内熱交換器を有するとともに、該
ダクト内には該ケース本体の上方近傍の空気を該室内熱
交換器を通して該ケース本体の下部前方に送風、或い
は、該ケース本体の下部前方の空気を該室内熱交換器に
通して該ケース本体の上方に送風する送風機を設置し、 前記空調用ヒートポンプサイクルはその室外側に、前記
排熱器の排熱と熱交換する第１の室外熱交換器と、屋外
空気と熱交換する第２の室外熱交換器とを設けるととも
に、該各室外熱交換器に冷媒を流通・停止させる第２の
弁機構をそれぞれ設けた ことを特徴とする熱交換システム。1. A heat pump cycle for air conditioning for cooling and heating the inside of a store, and a refrigeration cycle for cooling the case body of an open showcase, wherein heat exchange is performed between the heat pump cycle for air conditioning and the refrigeration cycle. In the heat exchange system, a duct is installed on the peripheral side surface of the case body, the upper end of which faces the upper side of the case body and the lower end of which faces the lower front side of the case body, and the refrigeration cycle is condensed with the discharge side of the compressor. A first valve mechanism that inserts a bypass pipe having a heat exhaust device in parallel with the refrigerant pipe in the middle of the refrigerant pipe between the cooling device and the opening / closing control of the refrigerant flow to the bypass pipe. The heat pump cycle for air conditioning has an indoor heat exchanger installed in the duct on the indoor side thereof, and the air near the upper part of the case body is in the duct. An air blower is installed to blow air to the lower front of the case main body through a heat exchanger, or to blow air at the lower front of the case main body through the indoor heat exchanger to the upper side of the case main body. Is provided with a first outdoor heat exchanger for exchanging heat with the exhaust heat of the exhaust heat exchanger and a second outdoor heat exchanger for exchanging heat with the outdoor air on the outdoor side thereof, and each of the outdoor heat exchangers A heat exchange system characterized in that a second valve mechanism for circulating and stopping the refrigerant is provided in each.
外熱交換器を前記空調用ヒートポンプサイクル中に並列
に接続した ことを特徴とする実用新案登録請求の範囲第１項記載の
熱交換システム。2. The utility model registration claim 1, wherein the first outdoor heat exchanger and the second outdoor heat exchanger are connected in parallel during the air conditioning heat pump cycle. Heat exchange system.
外熱交換器を前記空調用ヒートポンプサイクル中に直列
に接続した ことを特徴とする実用新案登録請求の範囲第１項記載の
熱交換システム。3. The utility model registration claim 1, wherein the first outdoor heat exchanger and the second outdoor heat exchanger are connected in series during the air conditioning heat pump cycle. Heat exchange system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17619787U JPH0629653Y2 (en) | 1987-11-18 | 1987-11-18 | Heat exchange system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17619787U JPH0629653Y2 (en) | 1987-11-18 | 1987-11-18 | Heat exchange system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0182484U JPH0182484U (en) | 1989-06-01 |
| JPH0629653Y2 true JPH0629653Y2 (en) | 1994-08-10 |
Family
ID=31467947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17619787U Expired - Lifetime JPH0629653Y2 (en) | 1987-11-18 | 1987-11-18 | Heat exchange system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0629653Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000005542A1 (en) * | 1998-07-24 | 2000-02-03 | Daikin Industries, Ltd. | Refrigerating device |
| CN108278792A (en) * | 2018-03-21 | 2018-07-13 | 天津商业大学 | The air source heat pump system of winter autocascade cycle heating can be achieved |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4258363B2 (en) * | 2003-02-20 | 2009-04-30 | 三菱電機株式会社 | Refrigeration air conditioner, operation method of refrigeration air conditioner |
| JP4659521B2 (en) * | 2004-12-08 | 2011-03-30 | 三菱電機株式会社 | Refrigeration air conditioner, operation method of refrigeration air conditioner, method of manufacturing refrigeration air conditioner, refrigeration apparatus, method of manufacturing refrigeration apparatus |
| JP4651452B2 (en) * | 2004-12-27 | 2011-03-16 | 三菱電機株式会社 | Refrigeration air conditioner |
| KR100697088B1 (en) * | 2005-06-09 | 2007-03-20 | 엘지전자 주식회사 | Air-Condition |
| ES2267406A1 (en) * | 2005-08-25 | 2007-03-01 | Frost-Trol, S.A. | Improved heat recovery system which is intended for air-conditioning and to reduce the cold corridor effect |
| JP2007139368A (en) * | 2005-11-22 | 2007-06-07 | Sanden Corp | Hot water supply system |
| JP5261066B2 (en) * | 2008-08-08 | 2013-08-14 | シャープ株式会社 | Refrigerator and refrigerator |
| JP5724476B2 (en) * | 2011-03-10 | 2015-05-27 | 株式会社富士通ゼネラル | Refrigeration cycle equipment |
| JP2014119121A (en) * | 2012-12-13 | 2014-06-30 | Nakano Refrigerators Co Ltd | Exhaust heat utilization system of refrigeration equipment and exhaust heat utilization method of refrigeration equipment |
| CN108375245B (en) * | 2018-01-17 | 2023-12-15 | 北京四季通能源科技有限公司 | Air source heat pump evaporator tower and air source heat pump system |
| JP2020190377A (en) * | 2019-05-23 | 2020-11-26 | ダイキン工業株式会社 | Refrigerating device |
| CN113566297B (en) * | 2021-07-20 | 2023-03-21 | 青岛海尔空调器有限总公司 | Air conditioner indoor unit and control method thereof |
-
1987
- 1987-11-18 JP JP17619787U patent/JPH0629653Y2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000005542A1 (en) * | 1998-07-24 | 2000-02-03 | Daikin Industries, Ltd. | Refrigerating device |
| CN108278792A (en) * | 2018-03-21 | 2018-07-13 | 天津商业大学 | The air source heat pump system of winter autocascade cycle heating can be achieved |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0182484U (en) | 1989-06-01 |
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