Method and apparatus for limiting the end thrust of turbo compre

Details Method and apparatus for limiting the end thrust of turbo compre Method and apparatus for limiting the end thrust of turbo compre

1979-12-06

1983-05-24

Casaregola, Louis J.

Rotary kinetic fluid motors or pumps

Method of operation

415 17, 415 27, F04D 2702

Patent

active

043848184

ABSTRACT:
A method of limiting the discharge pressure for turbo compressors by means of a blowoff control which is controlled by an anti-surge controller along with means for measuring the discharge pressure and an extreme value selector as well as means for measuring the pressure flow rate and for generating a signal from a manual controller, comprises, measuring the discharge pressure, comparing the measured pressure with a desired maximum pressure to produce a pressure control signal, measuring the compressor flow rate, comparing the measured flow rate with a minimum permissible flow rate to provide a flow rate control, directing a signal from a manual controller to the value selector to generate a manual controller signal and feeding each of the pressure control signal, flow rate control signal, and manual controller signal to the anti-surge controller to provide a control of the blowoff valve in accordance therewith.

REFERENCES:
patent: 4139328 (1979-02-01), Kuper et al.

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