Rotary kinetic fluid motors or pumps – Method of operation
Patent
1997-12-23
1999-10-19
Lopez, F. Daniel
Rotary kinetic fluid motors or pumps
Method of operation
415 17, 415 16, 415 26, 415 28, 415 29, 415 30, 415 36, 415 47, 415 49, F04D 2702, F04B 4902, F03B 1500
Patent
active
059677422
ABSTRACT:
The operation of quickly taking a turbocompressor off-line from a parallel configuration, of a gas pipeline compressor station, may encounter increased mechanical action (in particular, vibration) upon recycle piping and the additional risk of compressor surge. For these reasons, this invention relates to a method and apparatus for decreasing vibratory loads and for increasing surge prevention effectiveness, while initiating an off-line operation, by (1) altering the surge control line's location, at a preset rate, from its initial location to a predetermined new location; and (2) decreasing the turbocompressor's deceleration rate when the operating point intercepts the surge control line before the control line reaches its new location. Upon completion of the off-line activity, the control line returns to its initial location; and the reduction of compressor speed will cease on reaching a preset value.
REFERENCES:
patent: 4046490 (1977-09-01), Rutshtein et al.
patent: 4486142 (1984-12-01), Staroselsky
patent: 4861233 (1989-08-01), Dziubakowski et al.
patent: 5798941 (1998-08-01), McLeister
Mirsky Saul
Tolmatsky Michael L.
Barton Rhonda
Compressor Controls Corporation
Lopez F. Daniel
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