公开(公告)号：US3613387A

公开(公告)日：1971-10-19

申请号：US3613387D

申请日：1969-06-09

申请人： CRYOGENIC TECHNOLOGY INC

发明人： COLLINS SAMUEL C

IPC分类号： F25B9/02 ,  F25J1/00 ,  F25J3/00

CPC分类号： F25B9/02 ,  F25J1/0007 ,  F25J1/0037 ,  F25J1/004 ,  F25J1/0224 ,  F25J1/0264 ,  F25J1/0276 ,  F25J1/0292 ,  F25J1/0294 ,  F25J2210/06 ,  F25J2210/42 ,  F25J2270/06 ,  F25J2270/912

摘要： A CRYOGENIC APPARATUS CAPABLE OF CONTINUOUSLY SUPPLYING LIQUID HELIUM AT A TEMPERATURE BELOW 4.2*K. BY REDUCING THE VAPOR PRESSURE OVER LIQUID HELIUM TO THE EXTENT REQUIRED TO OBTAIN THE DESIRED TEMPERATURE. THE RESULTING COLD, SUBATMOSPHERIC-PRESSURE GAS IS EXTRACTED AND, SUBSEQUENT TO ITS USE IN INDIRECTLY COOLING A PORTION OF FLUID CIRCULATED IN AN INTEGRATED CRYOGENIC REFRIGERATOR, IS COMPRESSED AND RETURNED TO THE SYSTEM AT ESSENTIALLY AMBIENT TEMPERATURE AND PRESSURE.

公开(公告)号：US3864926A

公开(公告)日：1975-02-11

申请号：US37210673

申请日：1973-06-21

申请人： CRYOGENIC TECHNOLOGY INC

发明人： COLLINS SAMUEL C

IPC分类号： F17C13/00 ,  F25J1/00 ,  F25J1/02 ,  F25J3/00

CPC分类号： F25J1/0007 ,  F25J1/001 ,  F25J1/0015 ,  F25J1/0017 ,  F25J1/0037 ,  F25J1/004 ,  F25J1/0042 ,  F25J1/0221 ,  F25J1/0224 ,  F25J1/0236 ,  F25J2210/42 ,  F25J2270/06 ,  F25J2270/912 ,  Y02E60/321 ,  Y10S505/888 ,  Y10S505/899

摘要： Method and apparatus for liquefying relatively large quantities of a cryogen, helium in particular. After the high-pressure fluid has been cooled through indirect heat exchange with a cold lowpressure stream it is isentropically expanded in an expansion engine. The rate of liquefaction may be increased by as much as 30 percent by substituting isentropic expansion for the conventional isenthalpic expansion.

摘要翻译： 液化相当大量的冷冻剂，特别是氦气的方法和装置。 在通过与冷的低压流的间接热交换来冷却高压流体之后，其在膨胀发动机中被等熵膨胀。 通过用等熵膨胀代替常规的等焓膨胀，液化速率可增加多达30％。