Title:
【発明の名称】熱交換による液体の気化法と、その機構からなる熱交換器、及び空気をその構成成分に分離する方法
Document Type and Number:
Japanese Patent JPH0731015
Kind Code:
B2
Abstract:
The present invention relates to a boiling process in a downflow heat exchanger and the heat exchanger itself with liquid distribution enhancing features which improve performance and allow safe and efficient operation. Performance enhancing features include a partially flooded hardway distribution region with a liquid volume fraction greater than about 0.25 and preferably greater than 0.5, adjusting the heat transfer surface area to maintain a liquid film Reynolds number above 20 and, preferably, above 50 yet less than 1000, preferably less than 300, for at least 75% of the reboiler surface, and, optionally, intermediate feeding of liquid at various intervals along the length of the heat exchanger to obtain more uniform values of liquid film Reynolds numbers and intermediate redistribution.
Inventors:
Douglas Leslie Bennett
Dan Michael Heron
Case Alain Rudevic
Edwin Charles Logski
Swaminathan Thunder
Dan Michael Heron
Case Alain Rudevic
Edwin Charles Logski
Swaminathan Thunder
Application Number:
JP7551292A
Publication Date:
April 10, 1995
Filing Date:
February 26, 1992
Export Citation:
Assignee:
Air Products and Chemicals, Inc.
International Classes:
F28B1/00; F25J3/00; F25J3/04; F28D3/00; F28D3/04; F28D5/02; F28D9/00; (IPC1-7): F28D3/04; F25J3/00; F28D5/02
Domestic Patent References:
| JP63180072A |
Attorney, Agent or Firm:
Yoshihisa Oshida
Next Patent: OPERATION/MAINTENANCE SUPPORT SYSTEM