Title:
【発明の名称】遠心圧縮機におけるサージを検出する方法および装置
Document Type and Number:
Japanese Patent JP2000505525
Kind Code:
A
Abstract:
A surge detection system for use in a fluid system having a load driven by a centrifugal compressor (12), the compressor (12) being driven by an electric motor (20). The surge detection system comprises a means (38, 40) for sensing a differential pressure developed across the compressor (12) and a means (42) for sensing a current representing input power to the motor (20). The surge detection system further comprises a first computing means responsive to the differential pressure developed across the compressor (12) for indicating when a valid surge is occurring in the compressor (12), and a second computing means responsive to the variable speed drive current for indicating when a valid surge is occurring in the compressor (12).
Inventors:
Beaverson, Gregory Kay
Harnet Earl, Schnetska
Frank, Timothy M
Harnet Earl, Schnetska
Frank, Timothy M
Application Number:
JP53651997A
Publication Date:
May 09, 2000
Filing Date:
April 11, 1997
Export Citation:
Assignee:
YORK INTERNATIONAL CORPORATION
International Classes:
F04D27/00; F04D27/02; F25B1/053; F25B49/02; H02H7/08; (IPC1-7): F04D27/02; F25B49/02
Attorney, Agent or Firm:
Kazuo Shamoto (5 outside)