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    REFRIGERANT COMPOSITION FOR REFRIGERATION SYSTEMS
    2.
    发明申请
    REFRIGERANT COMPOSITION FOR REFRIGERATION SYSTEMS 失效
    制冷系统的制冷剂组合物

    公开(公告)号：US20080053145A1

    公开(公告)日：2008-03-06

    申请号：US11851100

    申请日：2007-09-06

    申请人： Venkatarathanam Gandhiraju

    发明人： Venkatarathanam Gandhiraju

    IPC分类号： F25B1/00

    CPC分类号： C09K5/042 ,  C09K2205/13 ,  C09K2205/132

    摘要： The present invention relates to a method of refrigeration using refrigerant composition for multistage refrigeration systems, such as a pre-cooled mixed refrigeration system with one or more phase separators. The refrigerant composition can include nitrogen; methane; ethane, ethylene, or combinations thereof; propane, n-butane, iso-butane, or combinations thereof; and neon, helium, or combinations thereof.

    摘要翻译： 本发明涉及使用多级制冷系统的制冷剂组合物的制冷方法，例如具有一个或多个相分离器的预冷混合制冷系统。 制冷剂组合物可包括氮气; 甲烷 乙烷，乙烯或其组合; 丙烷，正丁烷，异丁烷或其组合; 和氖，氦或其组合。

    Self-cleaning cryogenic refrigeration system
    7.
    发明授权
    Self-cleaning cryogenic refrigeration system 失效
    自清洁低温制冷系统

    公开(公告)号：US5724832A

    公开(公告)日：1998-03-10

    申请号：US710508

    申请日：1996-09-18

    申请人： William A. Little ,  Igor Sapozhnikov

    发明人： William A. Little ,  Igor Sapozhnikov

    IPC分类号： B01D8/00 ,  C09K5/04 ,  F25B9/00 ,  F25B31/00 ,  F25B43/00 ,  F25B43/02 ,  F25J3/02 ,  F25J1/00

    CPC分类号： F25B43/00 ,  B01D8/00 ,  C09K5/045 ,  F25B31/004 ,  F25B43/02 ,  F25B9/006 ,  F25J1/0055 ,  F25J1/025 ,  F25J3/0295 ,  F25J3/08 ,  C09K2205/12 ,  C09K2205/122 ,  C09K2205/13 ,  C09K2205/132 ,  F25B2400/05 ,  F25B2400/12 ,  F25B2400/13 ,  F25B2400/23 ,  F25J2200/90 ,  F25J2205/30

    摘要： A method and device is disclosed for removing residual oil and other contaminants from the refrigerant stream flowing to low-temperature stages of a cryogenic refrigerator. A stream of vapor and liquid refrigerant is injected into a cyclone chamber �32! through the inlet tube �34!. While the liquid drains down a conical section �36! and out through a liquid line �38!, the vapor phase moves up into a packing of metal platelets �42! which is, in a particular embodiment, cooled by a returning stream of cold vapor passing through a tube �48! wrapped around the column. A portion of the vapor condenses on the platelets and is maintained in equilibrium with the vapor. Since high-molecular-weight contaminants are more soluble in the liquid phase, they are carried down the column with the drops of condensate and are swept out with the liquid fraction through the liquid line �38!. Consequently, the vapor sent out a vapor line �46! and into the low-temperature stages of the refrigeration system is cleansed of all oil residues and contaminants. A low-temperature refrigeration system with such a device can be operated continuously for many months with no signs of clogging. Moreover, the fractionating column is inexpensive, contains no moving parts, and does not add significant volume to the system.

    摘要翻译： 公开了一种从流到低温冰箱的低温阶段的制冷剂流中除去残余油和其它污染物的方法和装置。 蒸汽和液体制冷剂流通过入口管[34]注入旋风室[32]。 当液体通过液体管线[38]排出并流出液体管线[38]时，气相向上移动到金属血小板[42]的填料中，在特定的实施方案中，其被冷却回流 蒸汽通过围绕柱的管[48]。 蒸汽的一部分在血小板上冷凝并保持与蒸气平衡。 由于高分子量污染物在液相中更易溶，所以它们与冷凝液滴一起被吸附在柱上，并且液体馏分通过液体线扫出[38]。 因此，送出蒸汽管线[46]并进入制冷系统的低温阶段的蒸气清除所有油残留物和污染物。 具有这种装置的低温制冷系统可以连续运转数月，没有堵塞的迹象。 此外，分馏塔是便宜的，不含运动部件，并且不会增加体积。

    High efficiency throttle cryogenic refrigerator based on one stage compressor
    8.
    发明授权
    High efficiency throttle cryogenic refrigerator based on one stage compressor 失效
    基于单级压缩机的高效节流低温冷冻机

    公开(公告)号：US5706663A

    公开(公告)日：1998-01-13

    申请号：US560719

    申请日：1995-11-20

    申请人： Mikhail Boiarski ,  Boris V. Yudin ,  Ralph C. Longsworth ,  Ajay N. Khatri

    发明人： Mikhail Boiarski ,  Boris V. Yudin ,  Ralph C. Longsworth ,  Ajay N. Khatri

    IPC分类号： F25B1/00 ,  C09K5/04 ,  F25B9/00 ,  F17C11/00

    CPC分类号： F25B9/006 ,  C09K5/042 ,  C09K2205/13 ,  C09K2205/132

    摘要： Mixed refrigerants provide refrigeration at cryogenic temperatures with throttling cycles operating with a one-stage compressor. The refrigerants include noncondensable gases such as helium, neon, or hydrogen to increase the overall cooling capacity of a refrigeration system at the same refrigeration temperature which is attainable without such noncondensable gases. More refrigeration can be produced with existing systems at temperatures above the normal boiling point of nitrogen or argon by adding, for example, helium, than for refrigerant blends without helium. By increasing the return pressure value of the refrigeration cycle in relation to the molar percent of helium present in the refrigerant, a constant refrigeration temperature may be maintained which exhibits greater stability than prior systems operating at the same temperature without helium enrichment.

    摘要翻译： 混合制冷剂在低温下提供制冷，节流循环使用一级压缩机。 制冷剂包括诸如氦气，氖气或氢气的不凝性气体，以在相同的制冷温度下提高制冷系统的总体冷却能力，这在没有这种不凝结气体的情况下是可以达到的。 通过添加例如氦，可以在高于氮或氩的正常沸点的温度下用现有的系统制备更多的冷藏，而不是没有氦的制冷剂混合物。 通过相对于存在于制冷剂中的氦的摩尔百分比来增加制冷循环的回流压力值，可以保持恒定的制冷温度，其比在不具有氦气浓缩的相同温度下操作的现有系统更稳定。

    Non-CFC refrigerant mixture
    9.
    发明授权
    Non-CFC refrigerant mixture 失效
    非CFC制冷剂混合物

    公开(公告)号：US5702632A

    公开(公告)日：1997-12-30

    申请号：US697477

    申请日：1996-08-26

    申请人： Chuan Weng

    发明人： Chuan Weng

    IPC分类号： F25B1/00 ,  C09K5/04 ,  F25B7/00 ,  F25B9/00

    CPC分类号： C09K5/045 ,  F25B9/006 ,  C09K2205/122 ,  C09K2205/128 ,  C09K2205/13

    摘要： A refrigeration heat exchanger section useful in circulating a substantially non-CFC refrigerant mixture which comprises: a compressor means, an auxiliary condenser, a first condenser, a second condenser, a third condenser, a subcooler and a liquid/gas separator, wherein a subcooled refrigerant liquid mixture taken as bottoms from the liquid/gas separator is distributed and expanded by a first expansion means and a second expansion means to form first and second expanded streams, respectively, such that the first expanded stream is returned to the auxiliary condenser and compressor in order to avoid overheating of the compressor.

    摘要翻译： 一种用于循环基本上非CFC制冷剂混合物的制冷热交换器部分，其包括：压缩机装置，辅助冷凝器，第一冷凝器，第二冷凝器，第三冷凝器，过冷却器和液/气分离器，其中过冷 作为液体/气体分离器的底部的制冷剂液体混合物通过第一膨胀装置和第二膨胀装置分配和膨胀，以分别形成第一和第二膨胀流，使得第一膨胀流返回到辅助冷凝器和压缩机 以避免压缩机过热。