Claims
- 1. Refrigeration facilities having a plurality of refrigerating cycles, each of the refrigerating cycles comprising:
- a compressor,
- a condenser for condensing refrigerant discharged from the compressor,
- a reservoir for holding refrigerant coming from the condenser, and
- an evaporating unit consisting of an expansion means and an evaporator, where the expansion means throttles refrigerant coming from the reservoir and expands into the evaporator, and the evaporator evaporates the refrigerant into a suction line of the compressor,
- the refrigerating cycles being arranged in parallel, the evaporators being connected to form a liquid path, through which a liquid stream flows in series to be chilled in the evaporators, as well as to form a refrigerant path for a refrigerant stream of each refrigerating cycle, individually, and further being arranged in order from a high evaporating temperature of refrigerant to low one along the liquid path from the upstream to the downstream, and
- the condensers being connected to form a cooling water path through which a cooling water stream flows in series, said condensers being arranged in order from a low condensing temperature of refrigerant to a high one along the cooling water path from upstream to downstream, so that cooling water first passes through the condenser having the lowest condensing temperature, and the refrigerating cycle with the evaporator of the lowest evaporating temperature having a condenser with the lowest condensing temperature, and the refrigerating cycle with a condenser having the highest condensing temperature having an evaporator with the highest evaporating temperature, refrigerant passing through condensers having higher condensing temperature and connected in order to refrigerating cycles having the evaporators of increasingly higher evaporating temperatures.
- 2. Refrigeration facilities in claim 1, wherein a heat-exchanger is additionally provided to form a liquid path, said evaporators being connected to form a brine circulation path through the heat-exchanger, through which a brine stream flows in series to be chilled in the evaporators, and in turn to chill the liquid through the heat-exchanger, and further being arranged in order from a high evaporating temperature of refrigerant to low one along the brine path from the upstream to the downstream.
Priority Claims (3)
Number |
Date |
Country |
Kind |
3-92385 |
Apr 1991 |
JPX |
|
3-92386 |
Apr 1991 |
JPX |
|
3-92387 |
Apr 1991 |
JPX |
|
Parent Case Info
This is a division of application Ser. No. 07/871,548 filed Apr. 21, 1992.
US Referenced Citations (3)
Divisions (1)
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Number |
Date |
Country |
Parent |
871548 |
Apr 1992 |
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