F - Mech Eng,Light,Heat,Weapons – 25 – B
Patent
F - Mech Eng,Light,Heat,Weapons
25
B
F25B 1/00 (2006.01)
Patent
CA 2066371
The present inventions are intended to improve heat efficiency of a refrigeration system having plural refrigerating cycles of different evaporating or condensing temperatures typically used in breweries. Each of main lines of different evaporating temperatures are connected with each of suction lines to a compressor respectively. to enable the system to save energy and to establish a back-up system of compressors. A different condensing temperature system having a common refrigerant source is provided with refrigerant transferring means to transfer refrigerant from an refrigerant excess cycle to an refrigerant insufficiency cycle. The refrigerating cycles are arranged in parallel and the evaporators are 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 refigerant stream of each rerigerating cycle, individually. and further are arranged in order from a high evaporating temperature of refrigerant to low one along the liquid path from the upstream to the downstream.
La présente invention vise l'amélioration du rendement thermique de systèmes de refroidissement à cycles frigorifiques multiples et différentes températures d'évaporation ou de condensation, typiquement utilisés dans les brasseries. Chacune des canalisations principales, où règnent des températures différentes, est reliée à une canalisation d'aspiration, de manière à économiser l'énergie et à assurer un fonctionnement compresseurs de secours. Un circuit de condensation à différentes températures desservi par une source unique de frigorigène permet le transfert de frigorigène d'un cycle où il est en excès à un autre où il est insuffisant. Les cycles frigorifiques sont montés en parallèle et les évaporateurs communiquent entre eux de manière à former un passage pour la circulation du liquide à refroidir, aussi bien que pour former un passage pour la circulation du frigorigène de chaque cycle frigorifique. Les cycles frigorifiques sont disposés par ordre décroissant de la température d'évaporation du frigorigène d'amont en aval.
Kitaguchi Masaru
Sakashita Shigeru
Asahi Breweries Ltd.
Mayekawa Mfg. Co. Ltd.
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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