JP2974180B2 - Multi-room air conditioner - Google Patents
Multi-room air conditionerInfo
- Publication number
- JP2974180B2 JP2974180B2 JP3281051A JP28105191A JP2974180B2 JP 2974180 B2 JP2974180 B2 JP 2974180B2 JP 3281051 A JP3281051 A JP 3281051A JP 28105191 A JP28105191 A JP 28105191A JP 2974180 B2 JP2974180 B2 JP 2974180B2
- Authority
- JP
- Japan
- Prior art keywords
- heat
- heat exchanger
- auxiliary
- refrigerant
- exchanger
- 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 - Fee Related
Links
Landscapes
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Description
【0001】[0001]
【産業上の利用分野】本発明は、熱源側冷媒サイクルと
利用側冷媒サイクルに分離した多室冷暖房装置の詳しく
は蓄熱システムに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multi-room cooling / heating apparatus having a heat source side refrigerant cycle and a use side refrigerant cycle, and more particularly to a heat storage system.
【0002】[0002]
【従来の技術】従来、熱源側冷媒サイクルと利用側冷媒
サイクルに分離した多室冷暖房装置の蓄熱冷媒サイクル
は、特開平3−51644号公報に示されており、図3
のように構成されていた。2. Description of the Related Art Conventionally, a heat storage refrigerant cycle of a multi-room cooling / heating apparatus which is separated into a heat source side refrigerant cycle and a use side refrigerant cycle is disclosed in Japanese Patent Application Laid-Open No. 3-51644.
It was configured as follows.
【0003】以下図面を参照しながら説明する。図3に
おいて、11は圧縮機、12は四方弁、13は熱源側熱
交換器、14は冷房用減圧装置、15は暖房用減圧装
置、16は暖房時冷房用減圧装置14を閉成する逆止
弁、17は冷房時暖房用減圧装置15を閉成する逆止
弁、18は第1補助熱交換器でこれらを環状に連接し、
熱源側冷媒サイクルを形成している。19は第2補助熱
交換器で第1補助熱交換器18と熱交換するように一体
に形成されている。20は冷媒量調整タンクで冷房時と
暖房時の冷媒量を調整している。Hereinafter, description will be made with reference to the drawings. In FIG. 3, 11 is a compressor, 12 is a four-way valve, 13 is a heat source side heat exchanger, 14 is a cooling decompression device, 15 is a heating decompression device, and 16 is a heating / cooling decompression device 14 for closing. A stop valve, 17 is a check valve for closing the cooling / heating decompression device 15, and 18 is a first auxiliary heat exchanger which connects these in a ring shape,
A heat source side refrigerant cycle is formed. Reference numeral 19 denotes a second auxiliary heat exchanger which is integrally formed so as to exchange heat with the first auxiliary heat exchanger 18. Reference numeral 20 denotes a refrigerant amount adjusting tank for adjusting the amount of refrigerant during cooling and during heating.
【0004】21は冷媒搬送装置で冷房時と暖房時で冷
媒の流出方向が反対となる可逆特性をもっており、これ
らは室外ユニットfに収納されている。22a、22b
は利用側熱交換器で室内ユニットg、hに収納され接続
配管i、i’、j、j’で室外ユニットfと接続されて
いる。前記第2補助熱交換器19と冷媒量調整タンク2
0、冷媒搬送装置21,利用側熱交換器22a、22b
および接続配管i、i’、j、j’を環状に連接し利用
側冷媒サイクルを形成している。[0004] Reference numeral 21 denotes a refrigerant transport device having reversible characteristics in which the refrigerant flows in opposite directions during cooling and during heating, and these are accommodated in an outdoor unit f. 22a, 22b
Is a use-side heat exchanger housed in the indoor units g and h and connected to the outdoor unit f by connection pipes i, i ', j and j'. The second auxiliary heat exchanger 19 and the refrigerant amount adjusting tank 2
0, refrigerant transfer device 21, use side heat exchangers 22a, 22b
The connection pipes i, i ', j, and j' are connected in a ring to form a use-side refrigerant cycle.
【0005】23は蓄熱槽で内部に水等の蓄熱材を充て
んし、その蓄熱材と熱交換し蓄熱させる蓄熱用熱交換器
24と、同じく前期第2補助熱交換器19と直列に配設
され蓄熱材と熱交換し蓄熱を放熱させる放熱用熱交換器
25を備えている。[0005] Reference numeral 23 denotes a heat storage tank which is filled with a heat storage material such as water, exchanges heat with the heat storage material and stores heat, and is also provided in series with the second auxiliary heat exchanger 19. A heat-dissipating heat exchanger 25 for exchanging heat with a heat storage material and dissipating heat is provided.
【0006】26a、26bは第1補助熱交換器と前記
蓄熱用熱交換器24への冷媒流量を切換える三方切換弁
27a、27bは第2補助熱交換器19と前記放熱用熱
交換器25への冷媒流量を調整する三方流量弁である。The three-way switching valves 27a and 27b for switching the flow rate of the refrigerant to the first auxiliary heat exchanger and the heat storage heat exchanger 24 are connected to the second auxiliary heat exchanger 19 and the heat radiation heat exchanger 25, respectively. Is a three-way flow valve for adjusting the flow rate of the refrigerant.
【0007】以上のように構成された多室冷暖房装置に
ついて、その動作を説明する。冷房運転時は図中実線の
冷媒サイクルとなり、熱源側冷媒サイクルでは、圧縮機
11からの高温高圧ガスは四方弁12を通り熱源側熱交
換器13で放熱して凝縮液化し、逆止弁16を通って冷
房用膨張弁14で減圧され、第1補助熱交換器18で蒸
発して四方弁12を通り圧縮機12へ循環する。[0007] The operation of the multi-room air-conditioning apparatus configured as described above will be described. In the cooling operation, the refrigerant cycle is indicated by a solid line in the drawing. In the heat source-side refrigerant cycle, the high-temperature and high-pressure gas from the compressor 11 passes through the four-way valve 12 and radiates heat in the heat source-side heat exchanger 13 to condense and liquefy. The pressure is reduced by the cooling expansion valve 14, evaporated by the first auxiliary heat exchanger 18, and circulated to the compressor 12 through the four-way valve 12.
【0008】この時利用側冷媒サイクルの第2補助熱交
換器19と、前記第1補助熱交換器18が熱交換し、利
用側冷媒サイクル内のガス冷媒が冷却されて液化し、冷
媒量調整タンク20を通って冷媒搬送装置21に送ら
れ、この冷媒搬送装置21によって接続配管i、jを通
って利用側熱交換器22a、22bへ送られて吸熱蒸発
し、ガス化して接続配管i’、j’を通って第2補助熱
交換器19に循環することになる。At this time, the second auxiliary heat exchanger 19 of the use side refrigerant cycle and the first auxiliary heat exchanger 18 exchange heat, and the gas refrigerant in the use side refrigerant cycle is cooled and liquefied, and the amount of refrigerant is adjusted. The refrigerant is sent to the refrigerant transfer device 21 through the tank 20, and is sent to the use side heat exchangers 22a and 22b through the connection pipes i and j by the refrigerant transfer device 21 to be absorbed and evaporated, gasified, and connected to the connection pipe i ′. , J ′ to the second auxiliary heat exchanger 19.
【0009】冷房時熱源側冷媒サイクルの蓄熱運転は、
冷房用膨張弁14が蓄熱用膨張弁となり、圧縮機11、
四方弁12、熱源側熱交換器、逆止弁16からの冷媒が
蓄熱用膨張弁14を通過し三方切換弁26aを通り蓄熱
用熱交換器24に流通し、蓄熱材と熱交換して吸熱蒸発
し、三方切換弁26bを通って四方弁から圧縮機11へ
循環する。The heat storage operation of the cooling-time heat source side refrigerant cycle is as follows:
The cooling expansion valve 14 serves as a heat storage expansion valve, and the compressor 11,
Refrigerant from the four-way valve 12, the heat source side heat exchanger, and the check valve 16 passes through the heat storage expansion valve 14, passes through the three-way switching valve 26a, flows to the heat storage heat exchanger 24, exchanges heat with the heat storage material, and absorbs heat. It evaporates and circulates from the four-way valve to the compressor 11 through the three-way switching valve 26b.
【0010】一方、利用側冷媒サイクルの冷房ピーク負
荷運転時は、熱源側冷媒サイクルが第1補助熱交換器1
8を蒸発器とする通常の冷房運転となり、利用側熱交換
器22a、22bからの冷媒は接続配管i’、j’を通
り、負荷に合わせて調整された冷媒の一部は三方流量弁
27aから放熱用熱交換器25に送られ、0℃程度の蓄
熱材によって冷却凝縮して液化し三方流量弁27bへ送
られる。On the other hand, during the cooling peak load operation of the use side refrigerant cycle, the heat source side refrigerant cycle is connected to the first auxiliary heat exchanger 1.
The cooling operation from the use-side heat exchangers 22a and 22b passes through the connection pipes i 'and j', and a part of the refrigerant adjusted according to the load passes through the three-way flow valve 27a. From the heat exchanger 25 for heat radiation, cooled and condensed by a heat storage material of about 0 ° C., liquefied, and sent to the three-way flow valve 27b.
【0011】また接続配管i’、j’を通った三方流量
弁27aで負荷に合わせて調整された残りの冷媒は三方
流量弁27aから第2補助熱交換器19へ流通し、第1
補助熱交換器18により冷却液化されて三方流量弁27
bに送られ前記放熱用熱交換器25からの冷媒と合流
し、冷媒量調整タンク20から冷媒搬送装置21へ循環
する。従って、この時利用側サイクルの冷房能力は、ほ
ぼ熱源側冷媒サイクルの能力と放熱用熱交換器25の能
力の和となり増大する。The remaining refrigerant adjusted to the load by the three-way flow valve 27a passing through the connection pipes i 'and j' flows from the three-way flow valve 27a to the second auxiliary heat exchanger 19,
Cooled and liquefied by the auxiliary heat exchanger 18 and the three-way flow valve 27
b and merges with the refrigerant from the heat exchanger 25 for heat radiation, and circulates from the refrigerant amount adjustment tank 20 to the refrigerant transport device 21. Therefore, at this time, the cooling capacity of the use side cycle increases substantially as the sum of the capacity of the heat source side refrigerant cycle and the capacity of the heat radiating heat exchanger 25.
【0012】一方、暖房運転時においては、図中破線の
冷媒サイクルとなり、熱源側冷媒サイクルでは、圧縮機
11からの高温高圧冷媒は四方弁12から第1補助熱交
換器18に送られ、放熱して凝縮液化し、逆止弁17か
ら暖房用減圧装置15で減圧し、熱源側熱交換器13で
吸熱蒸発し、四方弁12を通って圧縮機11へ循環す
る。この時利用側冷媒サイクルの第2補助熱交換器19
と前記第1補助熱交換器18が熱交換し、利用側冷媒サ
イクル内の液冷媒が加熱されてガス化し、接続配管
i’、j’を通って利用側熱交換器22へ送られ、暖房
して放熱液化し接続配管i、jを通って、冷媒搬送装置
21へ送られ、冷媒量調整タンク20から第2補助熱交
換器19へ循環する。On the other hand, during the heating operation, the refrigerant cycle is indicated by a broken line in the drawing. In the heat source side refrigerant cycle, the high-temperature and high-pressure refrigerant from the compressor 11 is sent from the four-way valve 12 to the first auxiliary heat exchanger 18, Then, the pressure is reduced from the check valve 17 by the heating depressurizing device 15, absorbed and evaporated by the heat source side heat exchanger 13, and circulated to the compressor 11 through the four-way valve 12. At this time, the second auxiliary heat exchanger 19 of the utilization side refrigerant cycle
And the first auxiliary heat exchanger 18 exchanges heat, and the liquid refrigerant in the use-side refrigerant cycle is heated and gasified, sent to the use-side heat exchanger 22 through the connection pipes i ′ and j ′, and heated. Then, the refrigerant is liquefied and liquefied, passed through the connection pipes i and j, sent to the refrigerant transfer device 21, and circulated from the refrigerant amount adjustment tank 20 to the second auxiliary heat exchanger 19.
【0013】また暖房時熱源側冷媒サイクルの蓄熱運転
は、圧縮機11、四方弁12からの冷媒は三方切換弁2
6bから蓄熱用熱交換器24へ送られ蓄熱材で冷却凝縮
して液化し、三方切換弁26aから逆止弁17を通って
暖房用膨張弁15で減圧され、熱源側熱交換器13で吸
熱蒸発し、四方弁12から圧縮機11へ循環する。In the heat storage operation of the refrigerant cycle at the time of heating on the heat source side, the refrigerant from the compressor 11 and the four-way valve 12 is supplied to the three-way switching valve 2.
6b to a heat storage heat exchanger 24, which is cooled and condensed by the heat storage material and liquefied, passes through the three-way switching valve 26a, passes through the check valve 17, is depressurized by the heating expansion valve 15, and is absorbed by the heat source side heat exchanger 13. It evaporates and circulates from the four-way valve 12 to the compressor 11.
【0014】一方、利用側冷媒サイクルの暖房ピーク負
荷運転時、熱源側冷媒サイクルは三方切換弁26a、2
6bを切換え第1補助熱交換器18を凝縮器とする通常
の暖房運転を行う。この時利用側熱交換器22a、22
bで放熱凝縮した冷媒は、接続配管i、jを通り、冷媒
搬送装置21から冷媒量調整タンク20を通って三方流
量弁27bへ送られる。この三方流量弁27bでは負荷
に合わせて、冷媒の一部は放熱用熱交換器25へ送られ
て蓄熱材で加熱ガス化し、また残りの冷媒は第2補助熱
交換器19へ送られ、第1補助熱交換器18で加熱ガス
化し、三方流量弁27aでそれぞれのガス冷媒が合流
し、接続配管i’、j’を通って利用側熱交換器22
a、22bへ循環する。On the other hand, during the heating peak load operation of the use side refrigerant cycle, the heat source side refrigerant cycle is switched to the three-way switching valve 26a,
6b is switched to perform a normal heating operation using the first auxiliary heat exchanger 18 as a condenser. At this time, the use side heat exchangers 22a, 22
The refrigerant that has been condensed by the heat radiation in b passes through the connection pipes i and j and is sent from the refrigerant transport device 21 to the three-way flow valve 27b through the refrigerant amount adjustment tank 20. In the three-way flow valve 27b, a part of the refrigerant is sent to the heat radiating heat exchanger 25 to be heated and gasified by the heat storage material according to the load, and the remaining refrigerant is sent to the second auxiliary heat exchanger 19, (1) Heat gasification in the auxiliary heat exchanger 18, the respective gas refrigerants merge at the three-way flow valve 27a, and pass through the connection pipes i 'and j', and the use side heat exchanger 22
a, circulating to 22b.
【0015】従って、この時利用側冷媒サイクルの暖房
能力は、ほぼ熱源側冷媒サイクルの暖房能力と放熱用熱
交換器25の能力の和となり増大する。Therefore, at this time, the heating capacity of the use-side refrigerant cycle increases substantially as the sum of the heating capacity of the heat-source-side refrigerant cycle and the capacity of the heat radiating heat exchanger 25.
【0016】[0016]
【発明が解決しようとする課題】しかしながら、上記の
ような構成では、放熱用熱交換器25の内容積が大きく
なり、利用側冷媒サイクルの冷媒が増加すると共に放熱
用熱交換器25内に大量に冷媒が寝込み、蓄熱利用運転
時に冷媒搬送装置11への負荷が増大すると共に放熱用
熱交換器25内の液化冷媒が大量に冷媒搬送装置11に
流入し液圧縮により損傷する課題があった。However, in the above-described structure, the internal volume of the heat radiation heat exchanger 25 is increased, so that the amount of refrigerant in the use-side refrigerant cycle is increased and a large amount of heat is stored in the heat radiation heat exchanger 25. There is a problem that the refrigerant stagnates in the heat transfer device, the load on the refrigerant transfer device 11 increases during the heat storage utilization operation, and a large amount of the liquefied refrigerant in the heat radiating heat exchanger 25 flows into the refrigerant transfer device 11 and is damaged by liquid compression.
【0017】また、蓄熱槽内の蓄熱材の温度が利用側冷
媒サイクルの冷媒温度よりも冷房では高く、暖房では低
くなれば蓄熱材による能力向上は得られないため、蓄熱
材の利用温度範囲が少ない課題があった。Further, if the temperature of the heat storage material in the heat storage tank is higher than the refrigerant temperature of the use-side refrigerant cycle in cooling and lower in heating, the performance of the heat storage material cannot be improved. There were few issues.
【0018】本発明の多室冷暖房装置は上記課題に鑑
み、利用側冷媒サイクルの冷媒量を低減し、液化冷媒に
よる冷媒搬送装置の負荷を軽減すると共に、液圧縮によ
る冷媒搬送装置の損傷を防止するものである。In view of the above problems, the multi-room cooling / heating device of the present invention reduces the amount of refrigerant in the use-side refrigerant cycle, reduces the load on the refrigerant transport device due to liquefied refrigerant, and prevents damage to the refrigerant transport device due to liquid compression. Is what you do.
【0019】また、上記の目的に加え、蓄熱材の利用温
度範囲を拡大し、蓄熱の有効利用による省エネルギー化
の増大を行うものである。Further, in addition to the above objects, the temperature range of use of the heat storage material is expanded to increase the energy saving by effectively utilizing the heat storage.
【0020】[0020]
【課題を解決するための手段】上記課題を解決するため
に、本発明の多室冷暖房装置は、圧縮機、熱源側四方
弁、熱源側熱交換器、減圧装置及び第1補助熱交換器を
環状に連接してなる熱源側冷媒サイクルと、前記第1補
助熱交換器と一体に形成し熱交換する第2補助熱交換器
と、冷媒搬送装置及び複数の利用側熱交換器と、前記第
2補助熱交換器と直列に放熱用第1補助熱交換器を有す
る利用側冷媒サイクルと、前記第1補助熱交換器と並列
に蓄熱用熱交換器と、前記放熱用第1補助熱交換器と一
体に形成し熱交換する放熱用第2補助熱交換器と、前記
放熱用第2補助熱交換器と蓄熱材搬送装置及び前記蓄熱
用熱交換器を有する蓄熱槽を環状に連接した放熱回路を
備えている。In order to solve the above-mentioned problems, a multi-room cooling / heating apparatus according to the present invention comprises a compressor, a heat source side four-way valve, a heat source side heat exchanger, a pressure reducing device, and a first auxiliary heat exchanger. A heat source-side refrigerant cycle connected in an annular manner, a second auxiliary heat exchanger formed integrally with the first auxiliary heat exchanger and exchanging heat, a refrigerant transfer device and a plurality of utilization-side heat exchangers, (2) a use-side refrigerant cycle having a first auxiliary heat exchanger for heat dissipation in series with the auxiliary heat exchanger; a heat exchanger for heat storage in parallel with the first auxiliary heat exchanger; and the first auxiliary heat exchanger for heat dissipation. A second auxiliary heat exchanger for heat radiation integrally formed with the heat exchanger, and a heat radiation circuit in which the second auxiliary heat exchanger for heat radiation, a heat storage material transfer device and a heat storage tank having the heat storage heat exchanger are connected in a ring shape. It has.
【0021】また、圧縮機、熱源側四方弁、熱源側熱交
換器、減圧装置及び第1補助熱交換器を環状に連接して
なる熱源側冷媒サイクルと、前記第1補助熱交換器と一
体に形成し熱交換する第2補助熱交換器と、冷媒搬送装
置及び複数の利用側熱交換器と、前記第2補助熱交換器
と直列に放熱用第1補助熱交換器を有する利用側冷媒サ
イクルと、前記第1補助熱交換器と並列に蓄熱用熱交換
器と、熱源側熱交換器と減圧装置の間に熱源側放熱用熱
交換器と、前記放熱用第1補助熱交換器と一体に形成し
熱交換する放熱用第2補助熱交換器と、前記放熱用第2
補助熱交換器と蓄熱材搬送装置及び前記蓄熱用熱交換器
と熱源側放熱用熱交換器とを有する蓄熱槽を環状に連接
した放熱回路を備えている。Also, a heat source side refrigerant cycle in which a compressor, a heat source side four-way valve, a heat source side heat exchanger, a pressure reducing device and a first auxiliary heat exchanger are connected in a ring, and the first auxiliary heat exchanger is integrated with the heat source side refrigerant cycle. A second auxiliary heat exchanger formed and heat-exchanged, a refrigerant transfer device and a plurality of utilization side heat exchangers, and a utilization side refrigerant having a first auxiliary heat exchanger for heat radiation in series with the second auxiliary heat exchanger A cycle, a heat exchanger for heat storage in parallel with the first auxiliary heat exchanger, a heat source side heat exchanger between the heat source side heat exchanger and the pressure reducing device, and the heat dissipation first auxiliary heat exchanger. A second heat-dissipating auxiliary heat exchanger integrally formed and exchanging heat;
A heat radiating circuit is provided in which a heat storage tank having an auxiliary heat exchanger, a heat storage material conveying device, and the heat storage heat exchanger and a heat source side heat radiating heat exchanger is connected in a ring shape.
【0022】[0022]
【作用】本発明の多室冷暖房装置は、上記した構成によ
って、蓄熱糟内の放熱用熱交換器がなくなるため、利用
側冷媒サイクル内の冷媒量が低減できると共に、放熱用
熱交換器での冷媒の液化滞留がなくなる。According to the multi-room cooling / heating apparatus of the present invention, the above configuration eliminates the heat radiation heat exchanger in the heat storage tank, so that the amount of refrigerant in the use-side refrigerant cycle can be reduced and the heat radiation heat exchanger can be used. Liquefaction of the refrigerant is eliminated.
【0023】また、蓄熱材温度が利用側冷媒サイクルの
温度よりも冷房時は高く、暖房時は低い温度で利用する
ことができる。Further, the temperature of the heat storage material is higher than the temperature of the use-side refrigerant cycle during cooling and can be used at a lower temperature during heating.
【0024】[0024]
【実施例】以下、本発明の第1の実施例の多室冷暖房装
置について、図面を参照しながら説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a multi-room air conditioner according to a first embodiment of the present invention will be described with reference to the drawings.
【0025】図1は、本発明の実施例における多室冷暖
房装置の冷媒サイクルを示すものである。FIG. 1 shows a refrigerant cycle of a multi-room cooling / heating apparatus according to an embodiment of the present invention.
【0026】図1において、30は前記第2補助熱交換
器19と直列に設け蓄熱を利用側冷媒サイクルに放熱す
る放熱用第1補助熱交換器、31は放熱用第1補助熱交
換器30に蓄熱を熱交換する放熱用第2補助熱交換器、
32は蓄熱材を放熱用第2補助熱交換器31から蓄熱槽
23へ循環する蓄熱材搬送装置、33は放熱用第2補助
熱交換器31と蓄熱材搬送装置32と蓄熱槽23を連接
する放熱回路であり、その他の構成は従来例と同じであ
り、ここでは同一符号を用いて示し、その説明を省略す
る。In FIG. 1, reference numeral 30 denotes a first auxiliary heat exchanger for heat dissipation provided in series with the second auxiliary heat exchanger 19 and radiates heat storage to the use-side refrigerant cycle, and 31 denotes a first auxiliary heat exchanger 30 for heat dissipation. A second auxiliary heat exchanger for heat radiation that exchanges heat with the heat exchanger;
Reference numeral 32 denotes a heat storage material transporting device that circulates the heat storage material from the second auxiliary heat exchanger 31 for heat radiation to the heat storage tank 23, and reference numeral 33 connects the second auxiliary heat exchanger 31 for heat release, the heat storage material transporting device 32, and the heat storage tank 23. This is a heat dissipation circuit, and the other configuration is the same as that of the conventional example. Here, the same reference numerals are used and the description thereof is omitted.
【0027】また、この冷媒サイクルの動作についても
前記従来例と同一であり詳細な説明は省略するが、従来
例と異なる利用側冷媒サイクルの蓄熱利用運転について
の説明を以下に行う。The operation of the refrigerant cycle is the same as that of the conventional example, and a detailed description thereof will be omitted. However, a description will be given below of a heat storage utilization operation of a utilization-side refrigerant cycle different from the conventional example.
【0028】図1において、冷暖房のピーク負荷運転時
は利用側冷媒サイクルの運転とともに蓄熱材搬送装置3
2を運転し、放熱用第2補助熱交換器31を冷却または
加熱し、放熱用第1補助熱交換器30によって熱源側冷
媒サイクルの能力に蓄熱を加えて、利用側冷媒サイクル
の能力を増大させる。In FIG. 1, during the peak load operation of the cooling and heating, the operation of the utilization-side refrigerant cycle and the operation of the heat storage material transfer device 3 are performed.
2, the second auxiliary heat exchanger 31 for heat dissipation is cooled or heated, and heat is added to the capacity of the refrigerant cycle on the heat source side by the first auxiliary heat exchanger 30 for heat dissipation, thereby increasing the capacity of the use side refrigerant cycle. Let it.
【0029】以上のように本実施例によれば、第1補助
熱交換器18と並列に蓄熱用熱交換器24と、放熱用第
1補助熱交換器30と一体に形成し熱交換する放熱用第
2補助熱交換器31と、放熱用第2補助熱交換器31と
蓄熱材搬送装置32及び蓄熱用熱交換器24を有する蓄
熱槽23を環状に連接した放熱回路33を備えているの
で、夜間に蓄熱しておくことにより、冷暖房時のピーク
負荷時に熱源側冷媒サイクルの能力に蓄熱が加わり、ピ
ーク負荷に対応することができる。従って、圧縮機11
を小容量とし設備容量を小さくできる。また、利用側冷
媒サイクル内の冷媒量を低減するとともに、冷媒搬送装
置21への多量の液化冷媒の流入による液圧縮をなくす
ことができ、冷媒搬送装置21の損傷を防止することが
できる。As described above, according to the present embodiment, the heat-exchanger 24 is formed integrally with the heat-storing heat exchanger 24 and the heat-radiating first auxiliary heat exchanger 30 in parallel with the first auxiliary heat exchanger 18. A second auxiliary heat exchanger 31 for heat dissipation, and a heat radiating circuit 33 in which the heat storage tank 23 having the second auxiliary heat exchanger 31 for heat dissipation, the heat storage material transfer device 32, and the heat exchanger 24 for heat storage are connected in a ring shape. By storing heat at night, heat storage is added to the capacity of the heat source side refrigerant cycle at the time of a peak load during cooling and heating, and it is possible to cope with the peak load. Therefore, the compressor 11
And the equipment capacity can be reduced. In addition, the amount of refrigerant in the usage-side refrigerant cycle can be reduced, and liquid compression due to the inflow of a large amount of liquefied refrigerant into the refrigerant transport device 21 can be eliminated, and damage to the refrigerant transport device 21 can be prevented.
【0030】次に、本発明による多室冷暖房装置の第2
の実施例について、図面を参照しながら説明するが、第
1の実施例と同一構成の部分は同一符号を付し、その詳
細な説明は省略する。Next, the second embodiment of the multi-room cooling and heating apparatus according to the present invention will be described.
Will be described with reference to the drawings, the same reference numerals will be given to the same components as those in the first embodiment, and detailed description thereof will be omitted.
【0031】図2において、34は蓄熱槽23内に設け
られた熱源側放熱用熱交換器、35a,35bは熱源側
放熱用熱交換器34への冷媒流通を切り換える三方切換
弁であり、その他の構成は従来例及び第1の実施例と同
じであり、ここでは同一符号を用いて示し、その説明を
省略する。In FIG. 2, reference numeral 34 denotes a heat-source-side heat-dissipating heat exchanger provided in the heat storage tank 23, and reference numerals 35a and 35b denote three-way switching valves for switching refrigerant flow to the heat-source-side heat-dissipating heat exchanger 34. Is the same as that of the conventional example and the first embodiment. Here, the same reference numerals are used, and the description is omitted.
【0032】また、この冷媒サイクルの動作についても
前記従来例及び第1の実施例と同一であり詳細な説明は
省略するが、従来例及び第1の実施例と異なる蓄熱利用
運転についての説明を以下に行う。The operation of the refrigerant cycle is the same as that of the conventional example and the first embodiment, and the detailed description is omitted. However, a description will be given of the heat storage utilizing operation different from the conventional example and the first embodiment. Perform the following.
【0033】図2において、冷暖房のピーク負荷運転時
で蓄熱材の温度が利用側冷媒サイクル内の冷媒温度より
も高い場合は、利用側冷媒サイクルの運転とともに蓄熱
材搬送装置32を運転し、放熱用第2補助熱交換器31
を冷却または加熱し、放熱用第1補助熱交換器30によ
って熱源側冷媒サイクルの能力に蓄熱を加えて、利用側
冷媒サイクルの能力を増大させる。In FIG. 2, when the temperature of the heat storage material is higher than the refrigerant temperature in the use side refrigerant cycle during the peak load operation of the cooling and heating, the heat storage material transfer device 32 is operated together with the operation of the use side refrigerant cycle to release the heat. Second auxiliary heat exchanger 31
Is cooled or heated, and heat is added to the capacity of the heat source-side refrigerant cycle by the first heat-radiating auxiliary heat exchanger 30 to increase the capacity of the use-side refrigerant cycle.
【0034】また、蓄熱材の温度が利用側冷媒サイクル
内の冷媒温度よりも低い場合は、蓄熱材搬送装置32を
停止し、三方切換弁35a、35bを作動させ熱源側放
熱用熱交換器34に熱源側冷媒サイクルの冷媒を流通す
る。この時、冷房では熱源側冷媒サイクルの冷媒過冷却
度が増大し、熱源側冷媒サイクルの能力が増大し利用側
冷媒サイクルの能力も増大する。If the temperature of the heat storage material is lower than the temperature of the refrigerant in the use-side refrigerant cycle, the heat storage material transport device 32 is stopped, and the three-way switching valves 35a and 35b are operated to operate the heat source side heat-radiating heat exchanger 34. The refrigerant of the heat source side refrigerant cycle flows through the refrigerant. At this time, in cooling, the degree of subcooling of the refrigerant in the heat source side refrigerant cycle increases, the capacity of the heat source side refrigerant cycle increases, and the capacity of the use side refrigerant cycle also increases.
【0035】また、暖房では熱源側放熱用熱交換器34
が蒸発器となり、蒸発能力のアップにより熱源側冷媒サ
イクルの能力がアップし、利用側冷媒サイクルの能力も
増大する。In the heating operation, the heat source side heat radiating heat exchanger 34 is used.
Becomes an evaporator, and the capacity of the heat source side refrigerant cycle increases due to the increase of the evaporation capacity, and the capacity of the use side refrigerant cycle also increases.
【0036】以上のように本実施例によれば、第1補助
熱交換器18と並列に蓄熱用熱交換器24と、熱源側熱
交換器13と減圧装置14,15の間に熱源側放熱用熱
交換器34と、放熱用第1補助熱交換器30と一体に形
成し熱交換する放熱用第2補助熱交換器31と、放熱用
第2補助熱交換器31と蓄熱材搬送装置32及び蓄熱用
熱交換器24と熱源側放熱用熱交換器34とを有する蓄
熱槽23を環状に連接した放熱回路33を備えていの
で、夜間に蓄熱しておくことにより、冷暖房時のピーク
負荷時に熱源側冷媒サイクルの能力に蓄熱が加わり、ピ
ーク負荷に対応することができるので、圧縮機11を小
容量とし設備容量を小さくできる。また、利用側冷媒サ
イクル内の冷媒量を低減するとともに、冷媒搬送装置2
1への多量の液化冷媒の流入による液圧縮をなくすこと
ができ、冷媒搬送装置21の損傷を防止することができ
る。さらに、熱源側放熱用熱交換器34を設けているの
で、蓄熱材の温度よりも利用側冷媒サイクルの冷媒温度
が冷房では高く、暖房では低くなり蓄熱を直接利用でき
ない場合でも、熱源側冷媒サイクルの能力を向上し利用
側冷媒サイクルの能力を増大することが可能となる。従
って、蓄熱温度の利用範囲を拡大することができる。As described above, according to the present embodiment, the heat-source-side heat exchanger 24 is disposed in parallel with the first auxiliary heat exchanger 18, and the heat-source-side radiator is disposed between the heat source-side heat exchanger 13 and the pressure reducing devices 14 and 15. Heat exchanger 34, a second auxiliary heat exchanger 31 for heat radiation that is formed integrally with the first auxiliary heat exchanger 30 for heat exchange, a second auxiliary heat exchanger 31 for heat radiation, and a heat storage material transport device 32 And a heat radiating circuit 33 in which a heat storage tank 23 having a heat storage heat exchanger 24 and a heat source side heat radiating heat exchanger 34 is connected in a ring shape. Since heat storage is added to the capacity of the heat source side refrigerant cycle and it is possible to cope with a peak load, the capacity of the compressor 11 can be reduced and the installed capacity can be reduced. In addition, while reducing the amount of refrigerant in the use-side refrigerant cycle, the refrigerant transport device 2
The liquid compression due to the inflow of a large amount of liquefied refrigerant into the liquefied refrigerant 1 can be eliminated, and the refrigerant transport device 21 can be prevented from being damaged. Further, since the heat-source-side heat-radiating heat exchanger 34 is provided, the refrigerant temperature of the use-side refrigerant cycle is higher in cooling than in the heat storage material, lower in heating, and the heat source-side refrigerant cycle cannot be used directly. And the capacity of the use-side refrigerant cycle can be increased. Therefore, the use range of the heat storage temperature can be expanded.
【0037】なお、本実施例では、熱源側冷媒サイクル
を運転した蓄熱利用を説明したが、場合によっては熱源
側冷媒サイクルを運転しない、蓄熱だけの冷暖房運転も
可能であるとともに、起動時に蓄熱を利用することによ
って立ち上がり特性が向上することは言うまでもない。
また、実施例では蓄熱槽を含めた室外ユニットとした
が、蓄熱槽を室外ユニットと分離しても良い。In this embodiment, the use of heat storage by operating the heat source side refrigerant cycle has been described. However, in some cases, a cooling and heating operation using only heat storage without operating the heat source side refrigerant cycle is also possible. Needless to say, the rise characteristics are improved by the use.
In the embodiment, the outdoor unit including the heat storage tank is used. However, the heat storage tank may be separated from the outdoor unit.
【0038】[0038]
【発明の効果】以上のように、本発明の多室冷暖房装置
は、圧縮機、熱源側四方弁、熱源側熱交換器、減圧装置
及び第1補助熱交換器を環状に連接してなる熱源側冷媒
サイクルと、前記第1補助熱交換器と一体に形成し熱交
換する第2補助熱交換器と、冷媒搬送装置及び複数の利
用側熱交換器と、前記第2補助熱交換器と直列に放熱用
第1補助熱交換器を有する利用側冷媒サイクルと、前記
第1補助熱交換器と並列に蓄熱用熱交換器と、前記放熱
用第1補助熱交換器と一体に形成し熱交換する放熱用第
2補助熱交換器と、前記放熱用第2補助熱交換器と蓄熱
材搬送装置及び前記蓄熱用熱交換器を有する蓄熱槽を環
状に連接した放熱回路を備えているので、夜間に蓄熱し
ておくことにより、冷暖房時のピーク負荷時に熱源側冷
媒サイクルの能力に蓄熱が加わり、ピーク負荷に対応す
ることができる。従って、圧縮機を小容量とし設備容量
を小さくできる。また、利用側冷媒サイクル内の冷媒量
を低減するとともに、冷媒搬送装置への多量の液化冷媒
の流入による液圧縮をなくすことができ、冷媒搬送装置
の損傷を防止することができる。As described above, the multi-room air conditioner of the present invention comprises a heat source comprising a compressor, a heat source side four-way valve, a heat source side heat exchanger, a pressure reducing device, and a first auxiliary heat exchanger connected in a ring shape. Side refrigerant cycle, a second auxiliary heat exchanger integrally formed with the first auxiliary heat exchanger and exchanging heat, a refrigerant transfer device and a plurality of utilization side heat exchangers, and a series with the second auxiliary heat exchanger. A use-side refrigerant cycle having a first auxiliary heat exchanger for heat dissipation, a heat exchanger for heat storage in parallel with the first auxiliary heat exchanger, and heat exchange formed integrally with the first auxiliary heat exchanger for heat dissipation. A second auxiliary heat exchanger for heat dissipation, and a heat dissipation circuit in which the second auxiliary heat exchanger for heat dissipation, a heat storage material transporting device, and a heat storage tank having the heat exchanger for heat storage are connected in a ring shape. The heat source side refrigerant cycle capacity during peak loads during cooling and heating. Thermal storage is exerted, it is possible to cope with peak loads. Therefore, the capacity of the compressor can be reduced and the installed capacity can be reduced. In addition, the amount of refrigerant in the usage-side refrigerant cycle can be reduced, and liquid compression due to the inflow of a large amount of liquefied refrigerant into the refrigerant transport device can be eliminated, and damage to the refrigerant transport device can be prevented.
【0039】また、さらに、熱源側放熱用熱交換器を設
けているので、蓄熱材の温度よりも利用側冷媒サイクル
の冷媒温度が冷房では高く、暖房では低くなり蓄熱を直
接利用できない場合でも、熱源側冷媒サイクルの能力を
向上し利用側冷媒サイクルの能力を増大することが可能
となる。従って、蓄熱温度の利用範囲を拡大することが
できるので、さらに省エネルギー化を行うことができ
る。Further, since the heat source side heat radiating heat exchanger is provided, even when the refrigerant temperature of the utilization side refrigerant cycle is higher in cooling than in the heat storage material and lower in heating, the heat storage cannot be used directly. It is possible to improve the capacity of the heat source side refrigerant cycle and increase the capacity of the use side refrigerant cycle. Therefore, the range of use of the heat storage temperature can be expanded, and further energy saving can be performed.
【図1】本発明の第1の実施例における多室冷暖房装置
の冷凍サイクル図FIG. 1 is a refrigeration cycle diagram of a multi-room cooling / heating apparatus according to a first embodiment of the present invention.
【図2】本発明の第2の実施例における多室冷暖房装置
の冷凍サイクル図FIG. 2 is a refrigeration cycle diagram of a multi-room cooling / heating device according to a second embodiment of the present invention.
【図3】従来の多室冷暖房装置の冷凍サイクル図FIG. 3 is a refrigeration cycle diagram of a conventional multi-room cooling / heating device.
13 熱源側熱交換器 18 第1補助熱交換器 19 第2補助熱交換器 21 冷媒搬送装置 22a,22b 利用側熱交換器 23 蓄熱槽 24 蓄熱用熱交換器 30 放熱用第1補助熱交換器 31 放熱用第2補助熱交換器 32 蓄熱材搬送装置 33 放熱回路 34 熱源側放熱用熱交換器 DESCRIPTION OF SYMBOLS 13 Heat source side heat exchanger 18 1st auxiliary heat exchanger 19 2nd auxiliary heat exchanger 21 Refrigerant conveying device 22a, 22b User side heat exchanger 23 Heat storage tank 24 Heat storage heat exchanger 30 Radiation first auxiliary heat exchanger 31 second auxiliary heat exchanger for heat dissipation 32 heat storage material transport device 33 heat dissipation circuit 34 heat exchanger for heat dissipation on the heat source side
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.6,DB名) F25B 1/00 399 F25B 13/00 351 ──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. 6 , DB name) F25B 1/00 399 F25B 13/00 351
Claims (2)
器、減圧装置及び第1補助熱交換器を環状に連接してな
る熱源側冷媒サイクルと、前記第1補助熱交換器と一体
に形成し熱交換する第2補助熱交換器と、冷媒搬送装置
及び複数の利用側熱交換器と、前記第2補助熱交換器と
直列に放熱用第1補助熱交換器を有する利用側冷媒サイ
クルと、前記第1補助熱交換器と並列に蓄熱用熱交換器
と、前記放熱用第1補助熱交換器と一体に形成し熱交換
する放熱用第2補助熱交換器と、前記放熱用第2補助熱
交換器と蓄熱材搬送装置及び前記蓄熱用熱交換器を有す
る蓄熱槽とを環状に連接した放熱回路を備えた多室冷暖
房装置。1. A heat source side refrigerant cycle in which a compressor, a heat source side four-way valve, a heat source side heat exchanger, a pressure reducing device, and a first auxiliary heat exchanger are connected in a ring shape, and integrated with the first auxiliary heat exchanger. A second auxiliary heat exchanger formed and heat-exchanged, a refrigerant transfer device and a plurality of utilization side heat exchangers, and a utilization side refrigerant having a first auxiliary heat exchanger for heat radiation in series with the second auxiliary heat exchanger A cycle, a heat storage heat exchanger in parallel with the first auxiliary heat exchanger, a heat release second auxiliary heat exchanger formed integrally with the heat release first auxiliary heat exchanger and exchanging heat, A multi-room air-conditioning / heating apparatus including a heat dissipation circuit in which a second auxiliary heat exchanger, a heat storage material transfer device, and a heat storage tank having the heat storage heat exchanger are connected in a ring shape.
器、減圧装置及び第1補助熱交換器を環状に連接してな
る熱源側冷媒サイクルと、前記第1補助熱交換器と一体
に形成し熱交換する第2補助熱交換器と、冷媒搬送装置
及び複数の利用側熱交換器と、前記第2補助熱交換器と
直列に放熱用第1補助熱交換器を有する利用側冷媒サイ
クルと、前記第1補助熱交換器と並列に蓄熱用熱交換器
と、熱源側熱交換器と減圧装置の間に熱源側放熱用熱交
換器と、前記放熱用第1補助熱交換器と一体に形成し熱
交換する放熱用第2補助熱交換器と、前記放熱用第2補
助熱交換器と蓄熱材搬送装置及び前記蓄熱用熱交換器と
熱源側放熱用熱交換器とを有する蓄熱槽とを環状に連接
した放熱回路を備えた多室冷暖房装置。2. A heat-source-side refrigerant cycle in which a compressor, a heat-source-side four-way valve, a heat-source-side heat exchanger, a pressure reducing device, and a first auxiliary heat exchanger are connected in a ring shape, and integrated with the first auxiliary heat exchanger. A second auxiliary heat exchanger formed and heat-exchanged, a refrigerant transfer device and a plurality of utilization side heat exchangers, and a utilization side refrigerant having a first auxiliary heat exchanger for heat radiation in series with the second auxiliary heat exchanger A cycle, a heat exchanger for heat storage in parallel with the first auxiliary heat exchanger, a heat source side heat exchanger between the heat source side heat exchanger and the pressure reducing device, and the heat dissipation first auxiliary heat exchanger. Heat storage including a heat-dissipating second auxiliary heat exchanger integrally formed and exchanging heat, the heat-dissipating second auxiliary heat exchanger, a heat storage material conveying device, and the heat storage heat exchanger and a heat source side heat radiation heat exchanger. A multi-room air-conditioning and heating system equipped with a heat-dissipation circuit that connects the tank in a ring shape.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3281051A JP2974180B2 (en) | 1991-10-28 | 1991-10-28 | Multi-room air conditioner |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3281051A JP2974180B2 (en) | 1991-10-28 | 1991-10-28 | Multi-room air conditioner |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH05118690A JPH05118690A (en) | 1993-05-14 |
JP2974180B2 true JP2974180B2 (en) | 1999-11-08 |
Family
ID=17633626
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3281051A Expired - Fee Related JP2974180B2 (en) | 1991-10-28 | 1991-10-28 | Multi-room air conditioner |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2974180B2 (en) |
-
1991
- 1991-10-28 JP JP3281051A patent/JP2974180B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH05118690A (en) | 1993-05-14 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |