发明名称 |
METHODS AND APPARATUSES FOR DETECTING SURGE IN CENTRIFUGAL COMPRESSORS |
摘要 |
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).
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申请公布号 |
WO9738270(A1) |
申请公布日期 |
1997.10.16 |
申请号 |
WO1997US06024 |
申请日期 |
1997.04.11 |
申请人 |
YORK INTERNATIONAL CORPORATION |
发明人 |
BEAVERSON, GREGORY, K.;SCHNETZKA, HAROLD, R.;FRANK, TIMOTHY, M. |
分类号 |
F04D27/00;F04D27/02;F25B1/053;F25B49/02;H02H7/08;(IPC1-7):F25B49/02 |
主分类号 |
F04D27/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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