SYSTEM AND METHOD FOR CRYOGENIC COOLING
    11.
    发明申请
    SYSTEM AND METHOD FOR CRYOGENIC COOLING 审中-公开
    冷冻冷却系统及方法

    公开(公告)号:US20120038120A1

    公开(公告)日:2012-02-16

    申请号:US13106180

    申请日:2011-05-12

    摘要: In accordance with an embodiment of the invention, there is provided a system for cooling a load. The system comprises a closed loop primary refrigeration system comprising: a primary compressor taking in a primary refrigerant at a low pressure and discharging the primary refrigerant at a high pressure; an insulated enclosure comprising an inlet receiving the primary refrigerant at the high pressure from the primary compressor and an outlet returning the primary refrigerant at the low pressure to the primary compressor; at least one heat exchanger within the insulated enclosure receiving the primary refrigerant at the high pressure and cooling the primary refrigerant using a secondary refrigerant from a secondary refrigeration system, the secondary refrigerant being in heat exchange relationship with the primary refrigerant in the at least one heat exchanger; an expansion unit within the insulated enclosure receiving the primary refrigerant at the high pressure from the at least one heat exchanger and discharging the primary refrigerant at the low pressure; and a supply line delivering the primary refrigerant at the low pressure to the load and a return line returning the primary refrigerant from the load to the primary refrigeration system. The system further comprises the secondary refrigeration system, wherein the secondary refrigeration system comprises at least one secondary cryogenic refrigerator. A system control unit controls operation of at least one of the primary refrigeration system and the secondary refrigeration system to provide a variable refrigeration capacity to the load based on at least one of: a pressure of the primary refrigerant delivered to the load, and at least one temperature of the load.

    摘要翻译: 根据本发明的实施例,提供了一种用于冷却负载的系统。 该系统包括闭环主要制冷系统,其包括:初级压缩机,其在低压下接收初级制冷剂并在高压下排出初级制冷剂; 绝缘外壳,其包括接收来自主压缩机的高压下的初级制冷剂的入口和将低压下的初级制冷剂返回到主压缩机的出口; 所述绝热壳体内的至少一个热交换器接收高压下的初级制冷剂并且使用来自二次制冷系统的二次制冷剂冷却所述初级制冷剂,所述二次制冷剂在所述至少一个热量中与所述初级制冷剂处于热交换关系 交换器 所述绝缘壳体内的膨胀单元接收来自所述至少一个热交换器的高压下的所述初级制冷剂,并且在所述低压下排出所述初级制冷剂; 以及将低压下的一次制冷剂输送到负载的供给管线和将一次制冷剂从负载返回到主制冷系统的返回管路。 该系统还包括二次制冷系统,其中次级制冷系统包括至少一个二次低温冰箱。 系统控制单元控制主要制冷系统和次级制冷系统中的至少一个的操作,以向负载提供可变制冷能力,其基于以下至少一个:输送到负载的一次制冷剂的压力,并且至少 一个温度的负载。