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1. 发明申请

WO1996033379A1 COOLING A FLUID STREAM 审中-公开
标题翻译：冷却流体流
公开(公告)号：WO1996033379A1
公开(公告)日：1996-10-24
申请号：PCT/EP1996001638
申请日：1996-04-17
申请人： SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V. , KLEIN NAGELVOORT, Robert , VINK, Kornelis, Jan , MERCER, Hilary, Ann
发明人： SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V.
IPC分类号： F25J01/02
CPC分类号： F25J1/0265 , F25J1/0022 , F25J1/0055 , F25J1/0212 , F25J1/0216 , F25J1/0292 , F25J2245/02
摘要： Method of cooling a fluid stream which passes through a hot side (1d, 1b, 1c) of a main heat exchanger (1) comprising removing refrigerant from the main heat exchanger (1); compressing refrigerant in a two-stage compressor unit (7) to obtain refrigerant at high pressure; partly condensing (12) the refrigerant to obtain a first two-phase fluid, and separating (13) the first two-phase fluid into a first condensed fraction (15) and a first gaseous fraction (16); cooling the first condensed fraction (15) in an auxiliary heat exchanger (2) to obtain a cooled first condensed fraction (18), cooling the first gaseous fraction (16) in the auxiliary heat exchanger (2) to obtain a second two-phase fluid (26), wherein cooling is provided by liquid evaporating at intermediate pressure in the cold side (2a); separating (28) the second two-phase fluid into a second condensed fraction (33) and a second gaseous fraction (32); allowing part of the second condensed fraction (49) to evaporate in the cold side (2a) of the auxiliary heat exchanger (2); and cooling the remainder of the second condensed fraction (33) in the main heat exchanger (1) to obtain a cooled second condensed fraction, and cooling the second gaseous fraction in the main heat exchanger (1), wherein cooling is provided by liquid evaporating at low pressure in the cold side (1a) of the main heat exchanger (1).
摘要翻译：冷却通过主热交换器（1）的热侧（1d，1b，1c）的流体流的方法，包括从主热交换器（1）除去制冷剂; 压缩二级压缩机单元（7）中的制冷剂以获得高压制冷剂; 部分地冷凝（12）制冷剂以获得第一两相流体，并将第一两相流体（13）分离成第一冷凝馏分（15）和第一气体馏分（16）; 在辅助热交换器（2）中冷却第一冷凝馏分（15）以获得冷却的第一冷凝馏分（18），冷却辅助热交换器（2）中的第一气态馏分（16）以获得第二两相流体（26），其中通过在冷侧（2a）中以中间压力蒸发的液体提供冷却; 将所述第二两相流体（28）分离成第二冷凝馏分（33）和第二气体馏分（32）; 使得第二冷凝馏分（49）的一部分在辅助热交换器（2）的冷侧（2a）中蒸发; 在主热交换器（1）中冷却第二冷凝馏分（33）的剩余部分，得到冷却后的第二冷凝馏分，并冷却主热交换器（1）中的第二气体馏分，其中通过液体蒸发提供冷却在主热交换器（1）的冷侧（1a）中的低压下。

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