Arrangement and method for treatment of compressed gas

F - Mech Eng,Light,Heat,Weapons – 04 – C

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F04C 29/00 (2006.01) F04C 29/02 (2006.01) F04C 29/04 (2006.01)

Patent

CA 2578123

An arrangement for use with a liquid cooled and/or lubricated compressor (10) for compressing gas, and incorporating provision to add liquid for cooling purposes to the gas prior to entry of the gas into the compressor, in which down stream of the compressor there is a liquid/gas separator (11) to separate the liquid from the gas and in which there is means (29) to recover heat from the liquid, and in which there is at least one filter (17 or 18) in the gas stream downstream of the liquid/gas separator, and there is a heater (19) in the gas stream downstream of the filter in which the gas is heated using heat recovered from the liquid (at 29), whereby to regulate the temperature of the pressurised gas. There may be a heat exchanger (14) between the separator and the filter. There may be a refrigerant dryer group (15) arranged to cool the gas after the liquid has been separated from the gas and before the gas is passed through the filter.

L'invention porte sur un ensemble destiné à être utilisé avec un compresseur (10) refroidi par liquide et/ou lubrifié de compression de gaz et conçu pour que le liquide de refroidissement soit mélangé avec le gaz avant l'introduction du gaz dans le compresseur, et comprenant en aval du compresseur, un séparateur de liquide/gaz (11) pour séparer le liquide du gaz. Cet ensemble comprend aussi des moyens (29) de récupation de la chaleur à partir du liquide et au moins un filtre (17,18) dans le flux gazeux en aval du séparateur de liquide/gaz, ainsi qu'un élément de chauffage (19) dans le flux gazeux en aval du filtre dans lequel le gaz est chauffé au moyen de la chaleur récupérée à partir du liquide (29), ceci afin de réguler la température du gas pressurisé. L'ensemble peut comprendre un échangeur de chaleur (14) situé entre le séparateur et le filtre. L'ensemble peut également comprendre un groupe sécheur frigorifique (15) disposé de façon à refroidir le gaz une fois que le liquide a été séparé du gaz et avant que le gaz ne soit filtré.

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