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1.发明公开METHODS OF FREEZEOUT PREVENTION AND TEMPERATURE CONTROL FOR VERY LOW TEMPERATURE MIXED REFRIGERANT SYSTEMS 审中-公开方法AUSFRIERVERHINDERUNG和温度控制与混合制冷剂低温系统
公开(公告)号：EP1982126A2
公开(公告)日：2008-10-22
申请号：EP07763284.2
申请日：2007-01-31
CPC分类号： F25B9/006 , F25B40/00 , F25B47/006 , F25B47/022 , F25B2400/04 , F25B2400/13 , F25B2400/23 , F25B2600/2515
摘要： Refrigerant freezeout is prevented, and temperature is controlled, by the use of a controlled bypass flow that causes a warming of the lowest temperature refrigerant in a refrigeration system that achieves very low temperatures by using a mixture of refrigerants comprising at least two refrigerants with boiling points that differ by at least 50° C. This control capability enables reliable operation of the very low temperature system.
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公开(公告)号：EP3467401A1
公开(公告)日：2019-04-10
申请号：EP18208157.0
申请日：2012-06-29
IPC分类号： F25B9/00
摘要： In accordance with an embodiment of the invention, there is provided a method of warming a heat exchanger array of a very low temperature refrigeration system, the method comprising diverting at least a portion of refrigerant flow in the refrigeration system away from a refrigerant flow circuit used during very low temperature cooling operation of the refrigeration system, to effect warming of at least a portion of the heat exchanger array; and while diverting the at least a portion of refrigerant flow, preventing excessive refrigerant mass flow through a compressor of the refrigeration system.
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公开(公告)号：EP1771525B1
公开(公告)日：2014-08-13
申请号：EP05712247.5
申请日：2005-01-28
CPC分类号： F25B9/006 , C09K5/041 , C09K2205/106 , C09K2205/13 , C09K2205/132 , F25B7/00
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公开(公告)号：EP1200780B1
公开(公告)日：2011-03-30
申请号：EP01944188.0
申请日：2001-05-30
发明人： FLYNN, Kevin, P. , HALL, Paul, H
CPC分类号： F25B40/00 , F25B9/00 , F25B41/04 , F25B47/022
摘要： Heating/defrost construction of very low temperature refrigeration system (100) having a defrost supply circuit (176, 178, 180) and a defrost return bypass circuit (186, 188, 190) optimizing the heating/defrost cycle, preventing overload (excessive pressure) of its refrigeration process and protecting components from damaging temperatures. The defrost cycle operates continuously, when required, and provides a shorter recovery period between heating/defrost and cooling operating modes. The rate of the temperature change during cool down or warm up is controlled in an open loop fashion by controlled refrigerant flow in bypass circuits (178, 190).
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6.发明公开SYSTEMS AND METHODS FOR WARMING A CRYOGENIC HEAT EXCHANGER ARRAY, FOR COMPACT AND EFFICIENT REFRIGERATION, AND FOR ADAPTIVE POWER MANAGEMENT 审中-公开系统和加热低温换热器安排紧凑而高效的冷却和自适应电源管理方法
公开(公告)号：EP2726800A2
公开(公告)日：2014-05-07
申请号：EP12737954.3
申请日：2012-06-29
IPC分类号： F25B47/02
CPC分类号： F25B29/003 , F25B9/00 , F25B49/005 , F25B2400/04 , F25B2600/2501
摘要： In accordance with an embodiment of the invention, there is provided a method of warming a heat exchanger array of a very low temperature refrigeration system, the method comprising diverting at least a portion of refrigerant flow in the refrigeration system away from a refrigerant flow circuit used during very low temperature cooling operation of the refrigeration system, to effect warming of at least a portion of the heat exchanger array; and while diverting the at least a portion of refrigerant flow, preventing excessive refrigerant mass flow through a compressor of the refrigeration system.
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