利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

2 条记录 (耗时 0.009 秒)

    LOW-TEMPERATURE DEVICE FOR SEPARATING AND PURIFYING GAS BASED ON SMALL-SIZED LOW-TEMPERATURE REFRIGERATING MACHINE
    1.
    发明公开
    LOW-TEMPERATURE DEVICE FOR SEPARATING AND PURIFYING GAS BASED ON SMALL-SIZED LOW-TEMPERATURE REFRIGERATING MACHINE 有权
    基于小低温冷却机低温设备分离和天然气清洁

    公开(公告)号：EP2829830A4

    公开(公告)日：2016-03-16

    申请号：EP12867912

    申请日：2012-03-23

    申请人： CSIC PRIDE NANJING CRYOGENIC TECHNOLOGY CO LTD

    发明人： DONG WENQING ,  CHAO WEI ,  CHEN JIE ,  LI AO ,  GAO JINLIN

    IPC分类号： F25J3/08 ,  F25J5/00

    CPC分类号： F25J1/00 ,  F25B9/02 ,  F25B9/14 ,  F25B9/145 ,  F25J3/0685 ,  F25J3/069 ,  F25J3/08 ,  F25J2215/30 ,  F25J2215/32 ,  F25J2270/908

    摘要： A low-temperature device for separating and purifying gas based on a small-sized low-temperature refrigerating machine includes a primary heat exchanger, a secondary heat exchanger, a quaternary heat exchanger, at least one small-sized low-temperature refrigerating machine, and at least one liquid collecting tank. The small-sized low-temperature refrigerating machine includes a first cold head and a second cold head, the secondary heat exchanger is provided on the first cold head to form a primary cold head heat exchanger, the quaternary heat exchanger is provided on the second cold head to form a secondary cold head heat exchanger, a mixed gas outlet is connected to an inlet of the primary cold head heat exchanger, an outlet of the primary cold head heat exchanger is connected to an inlet of the liquid collecting tank, and a gas outlet of the liquid collecting tank is connected to an inlet of the secondary cold head heat exchanger. By using primary and secondary cold heads of the small-sized low-temperature refrigerating machine as cold sources, gases having different condensing temperature are liquefied and solidified separately, accordingly a high-purity gas having a lower condensing temperature is obtained, and two or more gases can be separated and purified at a lower cost.