DEVICE FOR CONTROLLING TURBO-EXPANDER WITH ADAPTATION TO EXTERNAL LOAD Russian patent published in 2017 - IPC F25B49/02 

FIELD: machine engineering.

SUBSTANCE: device contains a stop valve, adjusting elements with drives and position sensors, a bypass valve, an operation mode switch, comparator units, normalisation and scaling amplifiers, pressure sensors, an adder, pressure value setters, a mode of operation of the turbo-expander, permissible deviations, an electric generator, a rectifier, a filter, a frequency converter, a load sensor of external electric network, a unit for issue of mean hourly values of gas flow rate, correctors, generators of correcting pulses, adders of consumption and correction.

EFFECT: reliability of the turbo-expander operation and accuracy while maintaining gas pressure in low-pressure line at emergency fluctuations of electric load in external network.

1 dwg