JP2011518308A - Dual refrigerator - Google Patents

Dual refrigerator Download PDF

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JP2011518308A
JP2011518308A JP2011506177A JP2011506177A JP2011518308A JP 2011518308 A JP2011518308 A JP 2011518308A JP 2011506177 A JP2011506177 A JP 2011506177A JP 2011506177 A JP2011506177 A JP 2011506177A JP 2011518308 A JP2011518308 A JP 2011518308A
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evaporator
condenser
compressor
cooling water
temperature
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キル ヨン キム，
ジン ヒー ジョン，
ジン ソン キム，
ウォン イル ユー，
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エルエス エムトロン リミテッド
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    • 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
    • F25B1/00—Compression machines, plants or systems with non-reversible cycle
    • F25B1/04—Compression machines, plants or systems with non-reversible cycle with compressor of rotary type
    • F25B1/053—Compression machines, plants or systems with non-reversible cycle with compressor of rotary type of turbine type
    • 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
    • F25B1/00—Compression machines, plants or systems with non-reversible cycle
    • 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
    • F25B1/00—Compression machines, plants or systems with non-reversible cycle
    • F25B1/10—Compression machines, plants or systems with non-reversible cycle with multi-stage compression
    • 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
    • F25B5/00—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity
    • 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
    • F25B6/00—Compression machines, plants or systems, with several condenser circuits
    • 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
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/06—Several compression cycles arranged in parallel
    • 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
    • F25B39/00—Evaporators; Condensers

Abstract

【課題】独立した２台の冷凍機の構成要素のうち圧縮機の揚程を下げ、圧縮機が同じ揚程で作動するように構成したデュアル冷凍機を提供する。
【解決手段】本発明のデュアル冷凍機は、冷水が第１の蒸発器と第２の蒸発器を順に通り、冷却水が第１の凝縮器と第２の凝縮器を順に通り、冷媒が収容された第１の圧縮機を介して上記第１の蒸発器と上記第２の凝縮器とが連結され、冷媒が収容された第２の圧縮機を介して上記第２の蒸発器と上記第１の凝縮器とが連結される。
【選択図】図２Disclosed is a dual refrigerator that is configured such that the compressor head is lowered among the components of two independent refrigerators so that the compressor operates at the same head.
In the dual refrigerator of the present invention, cold water passes through a first evaporator and a second evaporator in order, cooling water passes through a first condenser and a second condenser in order, and a refrigerant is accommodated. The first evaporator and the second condenser are connected via the first compressor, and the second evaporator and the second condenser are connected via the second compressor containing the refrigerant. 1 condenser is connected.
[Selection] Figure 2

Description

本発明は、デュアル冷凍機に係り、特に、独立した２台の冷凍機の構成要素のうち圧縮機の揚程を下げ、圧縮機が同じ揚程で作動するように構成したデュアル冷凍機に関する。   The present invention relates to a dual refrigerator, and more particularly, to a dual refrigerator configured to lower the lift of a compressor among components of two independent refrigerators so that the compressor operates at the same lift.

一般的な冷凍機は、圧縮機と、蒸発器と、凝縮器、及び膨張弁を具備し、冷媒を循環させながら圧縮機を介して蒸発器か凝縮器へと熱を移動させる。   A typical refrigerator includes a compressor, an evaporator, a condenser, and an expansion valve, and transfers heat to the evaporator or the condenser through the compressor while circulating the refrigerant.

このように構成された冷凍機の容量を増加させるための方法としては、各構成要素の容量を増加させて冷凍機自体の容量を増加させる方法があるが、別の方法として、２台の冷凍機を連結して冷凍機の容量を増加させる方法がある。このように２台の冷凍機を連結した冷凍機を「デュアル冷凍機」という。   As a method for increasing the capacity of the refrigerator configured as described above, there is a method in which the capacity of each component is increased to increase the capacity of the refrigerator itself. There is a method to increase the capacity of the refrigerator by connecting the machines. A refrigerator that connects two refrigerators in this way is called a “dual refrigerator”.

従来のデュアル冷凍機は直列方式で連結する。   Conventional dual refrigerators are connected in series.

図１は、一般的な直列方式のデュアル冷凍機を示す概路図である。   FIG. 1 is a schematic diagram showing a general serial dual refrigerator.

図１に示すように、並列方式のデュアル冷凍機１０は、２つの蒸発器１１、１２と、２つの凝縮器２１、２２、及び２つの圧縮機３１、３２と、を含む。蒸発器の冷水は、第１の蒸発器１１と第２の蒸発器１２を順に通ってから、再び第２の蒸発器１２と第１の蒸発器１１を順に通るといった経路で流動する。また凝縮器の冷却水は、第１の凝縮器２１と第２の凝縮器２２を順に通ってから、再び第２の凝縮器２２と第１の凝縮器２１を順に通るといった経路で流動する。   As shown in FIG. 1, the parallel dual refrigerator 10 includes two evaporators 11 and 12, two condensers 21 and 22, and two compressors 31 and 32. The cold water of the evaporator flows through a path in which the water passes through the first evaporator 11 and the second evaporator 12 in order and then passes again through the second evaporator 12 and the first evaporator 11 in order. Further, the cooling water of the condenser flows through the first condenser 21 and the second condenser 22 in order, and then flows again through the second condenser 22 and the first condenser 21 in order.

一方、冷媒が循環する第１の圧縮機３１を介して第１の蒸発器１１と第１の凝縮器２１とを連結し、冷媒が循環する第２の圧縮機３２を介して第２の蒸発器１２と第２の凝縮器２２とを連結する。   On the other hand, the first evaporator 11 and the first condenser 21 are connected via the first compressor 31 in which the refrigerant circulates, and the second evaporation is performed through the second compressor 32 in which the refrigerant circulates. The condenser 12 and the second condenser 22 are connected.

ＫＳ(Korean Standard) 標準を例に挙げると、第１の蒸発器１１に流入された冷水の温度は１２℃で、第１の蒸発器１１から排出される冷水の温度は７℃である。そして、第１の凝縮器２１に流入される冷却水の温度は３２℃で、第１の凝縮器２１から排出される冷却水の温度は３７℃である。   Taking the KS (Korean Standard) standard as an example, the temperature of the cold water flowing into the first evaporator 11 is 12 ° C., and the temperature of the cold water discharged from the first evaporator 11 is 7 ° C. The temperature of the cooling water flowing into the first condenser 21 is 32 ° C., and the temperature of the cooling water discharged from the first condenser 21 is 37 ° C.

このとき、第１の圧縮機３１の揚程は３２℃（３８℃−６℃）であり、第２の圧縮機３２の揚程は２９．５℃（３６．７５℃−７．２５℃）である。図１に示した温度は、冷却水の温度であって、蒸発器のＬＴＤは１℃で、凝縮器のＬＴＤは１℃である。したがって、第１の蒸発器１１から排出される冷却水の温度が７℃である場合における第１の圧縮機３１の冷媒温度は６℃で、第１の凝縮器２１から排出される冷却水の温度が３７℃である場合における第１の圧縮機３１の冷媒温度は３８℃である。   At this time, the head of the first compressor 31 is 32 ° C. (38 ° C.-6 ° C.), and the head of the second compressor 32 is 29.5 ° C. (36.75 ° C.-7.25 ° C.). . The temperature shown in FIG. 1 is the temperature of the cooling water, the evaporator LTD is 1 ° C., and the condenser LTD is 1 ° C. Therefore, when the temperature of the cooling water discharged from the first evaporator 11 is 7 ° C., the refrigerant temperature of the first compressor 31 is 6 ° C., and the cooling water discharged from the first condenser 21. When the temperature is 37 ° C., the refrigerant temperature of the first compressor 31 is 38 ° C.

このように第１の圧縮機３１の揚程が第２の圧縮機３２の揚程よりも相対的に高い。   Thus, the head of the first compressor 31 is relatively higher than the head of the second compressor 32.

したがって、同じ構造を有する独立した２台の冷凍機を利用するにあたって、いずれか一方の冷凍機の圧縮機が他方の圧縮機よりも相対的に高い様相を示し、このため、独立した圧縮機を設計・生産する必要がある。しかしながら、同じ構造を有するように当該圧縮機を作製すれば、設計、量産、メンテナンスが容易になるという長所があるが、従来のような配置では斯かる利点を活用しにくい。   Therefore, when using two independent refrigerators having the same structure, the compressor of either one of the refrigerators is relatively higher than the other compressor. It is necessary to design and produce. However, if the compressors are manufactured so as to have the same structure, there is an advantage that design, mass production, and maintenance become easy, but it is difficult to utilize such advantages in a conventional arrangement.

本発明は、前述したような従来の技術の問題点を解決するためになされたものであって、その目的は、２つの圧縮機と、２つの蒸発器、及び２つの凝縮器を具備したターボ冷凍機が圧縮機の揚程を下げ、圧縮機が同じ揚程で作動するように構成したデュアル冷凍機を提供することである。   The present invention has been made to solve the problems of the prior art as described above, and its object is to provide a turbo equipped with two compressors, two evaporators, and two condensers. It is to provide a dual refrigerator configured such that the refrigerator lowers the head of the compressor and the compressor operates at the same head.

上記目的を達成するための本発明のデュアル冷凍機は、冷水が第１の蒸発器と第２の蒸発器を順に通り、冷却水が第１の凝縮器と第２の凝縮器を順に通り、冷媒が収容された第１の圧縮機を介して上記第１の蒸発器と上記第２の凝縮器とが連結され、冷媒が収容された第２の圧縮機を介して上記第２の蒸発器と上記第１の凝縮器とが連結される。   In order to achieve the above object, the dual refrigerator of the present invention is configured such that cold water sequentially passes through the first evaporator and the second evaporator, cooling water sequentially passes through the first condenser and the second condenser, The first evaporator and the second condenser are connected via a first compressor containing refrigerant, and the second evaporator is connected via a second compressor containing refrigerant. Are connected to the first condenser.

また、本発明の一実施形態によれば、上記第１の蒸発器と上記第２の蒸発器とが並列に連結され、上記第１の凝縮器と上記第２の凝縮器とが直列に連結されていてよい。   According to an embodiment of the present invention, the first evaporator and the second evaporator are connected in parallel, and the first condenser and the second condenser are connected in series. May have been.

また、本発明の他の実施形態によれば、上記第１の蒸発器と上記第２の蒸発器とが直列に連結され、上記第１の凝縮器と上記第２の凝縮器とが並列に連結されていてよい。   According to another embodiment of the present invention, the first evaporator and the second evaporator are connected in series, and the first condenser and the second condenser are connected in parallel. It may be connected.

また、本発明のまた他の実施形態によれば、上記第１の蒸発器と上記第２の蒸発器とが並列に連結され、上記第１の凝縮器と上記第２の凝縮器とが並列に連結されていてよい。   According to still another embodiment of the present invention, the first evaporator and the second evaporator are connected in parallel, and the first condenser and the second condenser are connected in parallel. It may be connected to.

本発明によるデュアル冷凍機では、２つの蒸発器と、２つの圧縮機、及び２つの凝縮器を具備するにあたって、各圧縮機の揚程を下げつつ同じ楊程を保持することができ、圧縮機の最適な性能を実現することができる。   In the dual refrigerator according to the present invention, when the two evaporators, the two compressors, and the two condensers are provided, it is possible to maintain the same stroke while lowering the head of each compressor. Performance can be achieved.

一般的な直列方式のデュアル冷凍機を示す概路図である。It is a general | schematic route diagram which shows a general serial type dual refrigerator. 本発明の第１の実施形態によるデュアル冷凍機を示す図であって、２つの蒸発器が並列に連結され、２つの凝縮器が直列に連結された構造を示す概路図である。It is a figure which shows the dual refrigerator by the 1st Embodiment of this invention, Comprising: It is a schematic diagram which shows the structure where two evaporators were connected in parallel and two condensers were connected in series. 本発明の第２の実施形態によるデュアル冷凍機を示す図であって、２つの蒸発器が直列に連結され、２つの凝縮器が並列に連結された構造を示す概路図である。It is a figure which shows the dual refrigerator by the 2nd Embodiment of this invention, Comprising: It is a schematic diagram which shows the structure where two evaporators were connected in series and two condensers were connected in parallel. 本発明の第３の実施形態によるデュアル冷凍機を示す図であって、２つの蒸発器と２つの凝縮器ともに並列に配置された構造を示す概路図である。It is a figure which shows the dual refrigerator by the 3rd Embodiment of this invention, Comprising: It is a general | schematic route figure which shows the structure where two evaporators and two condensers are arrange | positioned in parallel. 図４に示したデュアル冷凍機の比較例を示す概路図である。FIG. 5 is a schematic diagram illustrating a comparative example of the dual refrigerator illustrated in FIG. 4.

以下、本発明によるデュアル冷凍機の好適な実施形態について、添付の図面を参照して詳しく説明する。なお、これら実施形態は、本発明の一実施形態として説明されるものであって、これらによって本発明の技術的思想やその核心構成及び作用が制限されるものではない。   Hereinafter, preferred embodiments of a dual refrigerator according to the present invention will be described in detail with reference to the accompanying drawings. In addition, these embodiment is demonstrated as one Embodiment of this invention, The technical idea of this invention, its core structure, and an effect | action are not restrict | limited by these.

図２は、本発明の第１の実施形態によるデュアル冷凍機を示す図であって、２つの蒸発器が並列に連結され、２つの凝縮器が直列に連結された構造を示す概路図である。図３は、本発明の第２の実施形態によるデュアル冷凍機を示す図であって、２つの蒸発器が直列に連結され、２つの凝縮器が並列に連結された構造を示す概路図である。図４は、本発明の第３の実施形態によるデュアル冷凍機を示す図であって、２つの蒸発器と２つの凝縮器ともに並列に配置された構造を示す概路図である。そして、図５は、図４に示したデュアル冷凍機の比較例を示す概路図である。
［第１の実施形態］
図２に示すように、第１の実施形態によるデュアル冷凍機１０１では、第１の蒸発器１１１と第２の蒸発器１１２とが並列に連結され、該第１の蒸発器１１１の一端から冷水が流入されると、該冷水は、第１の蒸発器１１１を通ってその他端から排出されてから、再び第２の蒸発器１１２の一端から流入され、第２の蒸発器１１２を通ってその他端から排出される。 FIG. 2 is a schematic diagram showing a dual refrigerator according to the first embodiment of the present invention, in which two evaporators are connected in parallel and two condensers are connected in series. is there. FIG. 3 is a schematic diagram showing a dual refrigerator according to the second embodiment of the present invention, in which two evaporators are connected in series and two condensers are connected in parallel. is there. FIG. 4 is a diagram showing a dual refrigerator according to the third embodiment of the present invention, and is a schematic diagram showing a structure in which two evaporators and two condensers are arranged in parallel. FIG. 5 is a schematic diagram showing a comparative example of the dual refrigerator shown in FIG.
[First Embodiment]
As shown in FIG. 2, in the dual refrigerator 101 according to the first embodiment, a first evaporator 111 and a second evaporator 112 are connected in parallel, and cold water is supplied from one end of the first evaporator 111. The cold water is discharged from the other end through the first evaporator 111, then flows again from one end of the second evaporator 112, and passes through the second evaporator 112. Discharged from the edge.

そして、第１の凝縮器１２１と第２の凝縮器１２２とが直列に連結され、冷却水が第１の凝縮器１２１を通って第２の凝縮器１２２に流入されてから、第２の凝縮器１２２を通って外へ排出される。   Then, the first condenser 121 and the second condenser 122 are connected in series, and the cooling water flows into the second condenser 122 through the first condenser 121 and then the second condensation. It is discharged outside through the vessel 122.

一方、第１の圧縮機１３１を介して第１の蒸発器１１１と第２の凝縮器１２２とが連結され、第１の圧縮機１３１の冷媒が第１の蒸発器１１１の冷水と第２の凝縮器１２２の冷却水の熱を相互伝達しながら循環する。そして、第２の圧縮機１３２を介して第２の蒸発器１１２と第１の凝縮器１２１とが連結され、第２の圧縮機１３２の冷媒が第２の蒸発器１１２の冷水と第１の凝縮器１２１の冷却水の熱を相互伝達しながら循環する。   On the other hand, the first evaporator 111 and the second condenser 122 are connected via the first compressor 131, and the refrigerant of the first compressor 131 is cooled with the cold water of the first evaporator 111 and the second It circulates while mutually transferring the heat of the cooling water of the condenser 122. And the 2nd evaporator 112 and the 1st condenser 121 are connected via the 2nd compressor 132, the refrigerant of the 2nd compressor 132 is the cold water of the 2nd evaporator 112, and the 1st It circulates while mutually transferring the heat of the cooling water of the condenser 121.

このとき、第１の蒸発器１１１に流入される冷水の温度は１２℃で、第２の蒸発器１１２から排出される冷水の温度は７℃であり、第１の凝縮器１２１に流入される冷却水の温度は３２℃で、第２の凝縮器１２２から排出される冷却水の温度は３７℃である。   At this time, the temperature of the cold water flowing into the first evaporator 111 is 12 ° C., the temperature of the cold water discharged from the second evaporator 112 is 7 ° C., and flows into the first condenser 121. The temperature of the cooling water is 32 ° C., and the temperature of the cooling water discharged from the second condenser 122 is 37 ° C.

したがって、蒸発器のＬＴＤの１℃と凝縮器のＬＴＤの１℃を考慮すると、第１の圧縮機１３１の揚程は２９．５℃（３８℃−８．５℃）であり、第２の圧縮機１３２の揚程は２９．５℃（３５．５℃−６℃）である。
［第２の実施形態］
図３に示すように、第２の実施形態によるデュアル冷凍機１０２では、第１の蒸発器２１１と第２の蒸発器２１２とが直列に連結され、冷水が第１の蒸発器２１１を通って第２の蒸発器２１２に流入されてから、第２の蒸発器２１２を通って外へ排出される。 Therefore, considering the evaporator LTD of 1 ° C. and the condenser LTD of 1 ° C., the lift of the first compressor 131 is 29.5 ° C. (38 ° C.-8.5 ° C.), and the second compression The head of the machine 132 is 29.5 ° C (35.5 ° C-6 ° C).
[Second Embodiment]
As shown in FIG. 3, in the dual refrigerator 102 according to the second embodiment, a first evaporator 211 and a second evaporator 212 are connected in series, and cold water passes through the first evaporator 211. After flowing into the second evaporator 212, it is discharged outside through the second evaporator 212.

そして、第１の凝縮器２２１と第２の凝縮器２２２とが並列に連結され、該第１の凝縮器２２１の一端から冷却水が流入されると、該冷却水は、第１の凝縮器２２１を通ってその他端から排出されてから、再び第２の凝縮器２２２の一端から流入され、第２の凝縮器２２２を通ってその他端から排出される。   And if the 1st condenser 221 and the 2nd condenser 222 are connected in parallel and cooling water flows in from one end of this 1st condenser 221, this cooling water will be the 1st condenser. After being discharged from the other end through 221, it flows again from one end of the second condenser 222 and is discharged from the other end through the second condenser 222.

一方、第１の圧縮機２３１を第１の蒸発器２１１と第２の凝縮器２２２とが連結され、第１の圧縮機２３１の冷媒が第１の蒸発器２１１の冷水と第２の凝縮器２２２の冷却水の熱を相互伝達しながら循環する。そして、第２の圧縮機２３２を介して第２の蒸発器２１２と第１の凝縮器２２１とが連結され、第２の圧縮機２３２の冷媒が第２の蒸発器２１２の冷水と第１の凝縮器２２１の冷却水の熱を相互伝達しながら循環する。   On the other hand, the first compressor 211 is connected to the first evaporator 211 and the second condenser 222, and the refrigerant of the first compressor 231 is the cold water of the first evaporator 211 and the second condenser. It circulates while transferring the heat of the cooling water 222. And the 2nd evaporator 212 and the 1st condenser 221 are connected via the 2nd compressor 232, and the refrigerant of the 2nd compressor 232 is the cold water of the 2nd evaporator 212, and the 1st It circulates while mutually transferring the heat of the cooling water of the condenser 221.

このとき、第１の蒸発器２１１に流入される冷水の温度は１２℃で、第２の蒸発器２１２から排出される冷水の温度は７℃であり、第１の凝縮器２２１に流入される冷却水の温度は３２℃で、第２の凝縮器２２２から排出される冷却水の温度は３７℃である。   At this time, the temperature of the cold water flowing into the first evaporator 211 is 12 ° C., the temperature of the cold water discharged from the second evaporator 212 is 7 ° C., and flows into the first condenser 221. The temperature of the cooling water is 32 ° C., and the temperature of the cooling water discharged from the second condenser 222 is 37 ° C.

したがって、蒸発器のＬＴＤの１℃と凝縮器のＬＴＤの１℃を考慮すると、第１の圧縮機２３１の揚程は２９．５℃（３５．５℃−６℃）であり、第２の圧縮機２３２の揚程は２９．５℃（３８℃−８．５℃）である。
［第３の実施形態］
図４に示すように、第３の実施形態によるデュアル冷凍機１０３では、第１の蒸発器３１１と第２の蒸発器３１２とが並列に連結される。該第１の蒸発器３１１の一端から冷水が流入されると、該冷水は、第１の蒸発器３１１を通ってその他端から排出されてから、再び第２の蒸発器３１２の一端から流入され、第２の蒸発器３１２を通ってその他端から排出される。 Therefore, considering the evaporator LTD of 1 ° C and the condenser LTD of 1 ° C, the lift of the first compressor 231 is 29.5 ° C (35.5 ° C-6 ° C), and the second compression The head of the machine 232 is 29.5 ° C. (38 ° C.-8.5 ° C.).
[Third Embodiment]
As shown in FIG. 4, in the dual refrigerator 103 according to the third embodiment, the first evaporator 311 and the second evaporator 312 are connected in parallel. When cold water is introduced from one end of the first evaporator 311, the cold water is discharged from the other end through the first evaporator 311 and then flows again from one end of the second evaporator 312. , And discharged from the other end through the second evaporator 312.

そして、第１の凝縮器３２１と第２の凝縮器３２２とが並列に連結され、該第１の凝縮器３２１の一端から冷却水が流入されると、該冷却水は、第１の凝縮器３２１を通ってその他端から排出されてから、再び第２の凝縮器３２２の一端から流入され、第２の凝縮器３２２を通ってその他端から排出される。   Then, when the first condenser 321 and the second condenser 322 are connected in parallel, and cooling water flows from one end of the first condenser 321, the cooling water is converted into the first condenser. After being discharged from the other end through 321, it flows again from one end of the second condenser 322, and is discharged from the other end through the second condenser 322.

一方、第１の圧縮機３３１を介して第１の蒸発器３１１と第２の凝縮器３２２とが連結され、第１の圧縮機３３１の冷媒が第１の蒸発器３１１の冷水と第２の凝縮器３２２の冷却水の熱を相互伝達しながら循環する。そして、第２の圧縮機３３２を介して第２の蒸発器３１２と第１の凝縮器３２１とが連結され、第２の圧縮機３３２の冷媒が第２の蒸発器３１２の冷水と第１の凝縮器３２１の冷却水の熱を相互伝達しながら循環する。   On the other hand, the first evaporator 311 and the second condenser 322 are connected via the first compressor 331, and the refrigerant of the first compressor 331 serves as the cold water of the first evaporator 311 and the second The heat of the cooling water of the condenser 322 is circulated while mutually transmitting. Then, the second evaporator 312 and the first condenser 321 are connected via the second compressor 332, and the refrigerant of the second compressor 332 is connected to the cold water of the second evaporator 312 and the first It circulates while mutually transferring the heat of the cooling water of the condenser 321.

このとき、第１の蒸発器３１１に流入される冷水の温度は１２℃で、第２の蒸発器３１２から排出される冷水の温度は７℃であり、第１の凝縮器３２１に流入される冷却水の温度は３２℃で、第２の凝縮器３２２から排出される冷却水の温度は３７℃である。   At this time, the temperature of the cold water flowing into the first evaporator 311 is 12 ° C., the temperature of the cold water discharged from the second evaporator 312 is 7 ° C., and flows into the first condenser 321. The temperature of the cooling water is 32 ° C., and the temperature of the cooling water discharged from the second condenser 322 is 37 ° C.

したがって、蒸発器のＬＴＤの１℃と凝縮器のＬＴＤの１℃を考慮すると、第１の圧縮機３３１の揚程は２９．５℃（３８℃−８．５℃）であり、第２の圧縮機３３２の揚程は２９．５℃（３５．５℃−６℃）である。
［比較例］
一方、図５に示すデュアル冷凍機１０４では、蒸発器の冷水が第１の蒸発器４１１と第２の蒸発器４１２を順に通り、凝縮器の冷却水が第１の凝縮器４２１と第２の凝縮器４２２を順に通る。そして、第１の圧縮機４３１を介して第１の蒸発器４１１と第１の凝縮器４２１とが連結され、第２の圧縮機４３２を介して第２の蒸発器４１２と第２の凝縮器４２２とが連結される。 Therefore, considering the evaporator LTD of 1 ° C. and the condenser LTD of 1 ° C., the lift of the first compressor 331 is 29.5 ° C. (38 ° C.-8.5 ° C.), and the second compression The head of the machine 332 is 29.5 ° C (35.5 ° C-6 ° C).
[Comparative example]
On the other hand, in the dual refrigerator 104 shown in FIG. 5, the cold water in the evaporator passes through the first evaporator 411 and the second evaporator 412 in order, and the cooling water in the condenser passes through the first condenser 421 and the second condenser 421. It passes through the condenser 422 in order. The first evaporator 411 and the first condenser 421 are connected via the first compressor 431, and the second evaporator 412 and the second condenser are connected via the second compressor 432. 422 is coupled.

このとき、第１の蒸発器４１１に流入される冷水の温度は１２℃で、第２の蒸発器４１２から排出される冷水の温度は７℃であり、第１の凝縮器４２１に流入される冷却水の温度は３２℃で、第２の凝縮器４２２から排出される冷却水の温度は３７℃である。   At this time, the temperature of the cold water flowing into the first evaporator 411 is 12 ° C., the temperature of the cold water discharged from the second evaporator 412 is 7 ° C., and flows into the first condenser 421. The temperature of the cooling water is 32 ° C., and the temperature of the cooling water discharged from the second condenser 422 is 37 ° C.

したがって、蒸発器のＬＴＤの１℃と凝縮器のＬＴＤの１℃を考慮すると、第１の圧縮機４３１の揚程は２７℃（３５．５℃−８．５℃）であり、第２の圧縮機４３２の揚程は３２℃（３８℃−６℃）である。   Therefore, considering the evaporator LTD of 1 ° C. and the condenser LTD of 1 ° C., the lift of the first compressor 431 is 27 ° C. (35.5 ° C.-8.5 ° C.), and the second compression The lift of the machine 432 is 32 ° C. (38 ° C.-6 ° C.).

このように、第１のないし第３の実施形態による第１、第２の圧縮機１３１、１３２、２３１、２３２、３３１、３３２は、その揚程がいずれも２９．５℃であるのに対し、比較例として説明した図５に示す比較デュアル冷凍機１０４の第１の圧縮機４３１は、その揚程が２７℃で、第２の圧縮機４３２の揚程は３２℃である。   Thus, the first and second compressors 131, 132, 231, 232, 331, and 332 according to the first to third embodiments all have a head of 29.5 ° C., whereas The first compressor 431 of the comparative dual refrigerator 104 shown in FIG. 5 described as a comparative example has a lift of 27 ° C., and the lift of the second compressor 432 is 32 ° C.

このことから、２つの蒸発器と、２つの凝縮器、及び２つの圧縮機を具備したデュアル冷凍機において、それらの配置構造によって圧縮機の揚程が変わり得ることが分かる。   From this, it can be seen that, in a dual refrigerator having two evaporators, two condensers, and two compressors, the head of the compressor can be changed depending on the arrangement structure thereof.

また、本発明によれば、図面には図示していないが、第１の蒸発器と第２の蒸発器とが直列に連結され、第１の凝縮器と第２の凝縮器とが直列に連結された状態で、第１の圧縮機を介して第１の蒸発器と第２の凝縮器とが連結され、第２の圧縮機を介して第２の蒸発器と第１の凝縮器とが連結されていてもよい。このような場合、第１の蒸発器と第２の凝縮器とを連結する第１の圧縮機、そして、第２の蒸発器と第１の凝縮器とを連結する第２の圧縮機の長さを長くした状態で交差するように連結することができる。   Further, according to the present invention, although not shown in the drawings, the first evaporator and the second evaporator are connected in series, and the first condenser and the second condenser are connected in series. In a connected state, the first evaporator and the second condenser are connected via the first compressor, and the second evaporator and the first condenser are connected via the second compressor. May be connected. In such a case, the length of the first compressor that connects the first evaporator and the second condenser, and the length of the second compressor that connects the second evaporator and the first condenser. They can be connected so as to intersect with a lengthened length.

Claims (4)

冷水が第１の蒸発器（１１１、２１１、３１１）と第２の蒸発器（１１２、２１２、３１２）を順に通り、冷却水が第１の凝縮器（１２１、２２１、３２１）と第２の凝縮器（１２２、２２２、３２２）を順に通り、冷媒が収容された第１の圧縮機（１３１、２３１、３３１）を介して前記第１の蒸発器（１１１、２１１、３１１）と前記第２の凝縮器（１２２、２２２、３２２）とが連結され、冷媒が収容された第２の圧縮機（１３２、２３２、３３２）を介して前記第２の蒸発器（１１２、２１２、３１２）と前記第１の凝縮器（１２１、２２１、３２１）とが連結されたことを特徴とするデュアル冷凍機。   The cold water sequentially passes through the first evaporator (111, 211, 311) and the second evaporator (112, 212, 312), and the cooling water passes through the first condenser (121, 221 and 321) and the second evaporator. The first evaporators (111, 211, 311) and the second are passed through the condensers (122, 222, 322) in order and through the first compressors (131, 231, 331) containing the refrigerant. The second evaporator (112, 212, 312) and the second evaporator (112, 212, 312) via the second compressor (132, 232, 332) containing the refrigerant. The dual refrigerator characterized by connecting with the 1st condenser (121,221,321). 前記第１の蒸発器（１１１）と前記第２の蒸発器（１１２）とが並列に連結され、
前記第１の凝縮器（１２１）と前記第２の凝縮器（１２２）とが直列に連結されたことを特徴とする請求項１に記載のデュアル冷凍機。 The first evaporator (111) and the second evaporator (112) are connected in parallel,
The dual refrigerator according to claim 1, wherein the first condenser (121) and the second condenser (122) are connected in series. 前記第１の蒸発器（２１１）と前記第２の蒸発器（２１２）とが直列に連結され、
前記第１の凝縮器（２２１）と前記第２の凝縮器（２２２）とが並列に連結されたことを特徴とする請求項１に記載のデュアル冷凍機。 The first evaporator (211) and the second evaporator (212) are connected in series,
The dual refrigerator according to claim 1, wherein the first condenser (221) and the second condenser (222) are connected in parallel. 前記第１の蒸発器（３１１）と前記第２の蒸発器（３１２）とが並列に連結され、
前記第１の凝縮器（３２１）と前記第２の凝縮器（３２２）とが並列に連結されたことを特徴とする請求項１に記載のデュアル冷凍機。 The first evaporator (311) and the second evaporator (312) are connected in parallel,
The dual refrigerator according to claim 1, wherein the first condenser (321) and the second condenser (322) are connected in parallel.
JP2011506177A 2008-04-25 2009-02-06 Dual refrigerator Pending JP2011518308A (en)

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