Plate-type heat exchangers

摘要

This invention relates to heat exchangers comprising vertically arranged plates, and passages are provided which extend from an inlet casing to an outlet casing, as well as further passages which extend from a two-phase inlet casing to other outlet casings. Other passages for an auxiliary fluid extend between the latter casing outlet and an upper extremity of the heat exchanger. Heat exchangers according to the invention can be used for the liquefaction of natural gas in particular.