DEVICE FOR PROTECTION OF INDUSTRIAL TURBOCHARGER FROM SURGING Russian patent published in 2020 - IPC F04D27/02 

FIELD: machine building.

SUBSTANCE: invention relates to devices and systems for protection of industrial turbocharger from surging. Device, in which current sensor is connected to network, and its first output is connected to turbo-compressor, and second output is connected to input of current analysis unit, which contains voltage source, analog-digital converter, digital signal processing unit, digital-to-analogue converter. Current analysis unit is connected to the first input of the control unit. Output of output relay unit generates output of control unit, which is connected to input of relay protection and automatics of electric motor. Intermediate voltage transformer is connected to output of voltage transformer connected to network, and output of intermediate voltage transformer is connected through rectifier with smoothing filter. Latter is connected to the second input of the reference voltage correction device, and the output of the reference voltage source is connected to the first input of the reference voltage correction device, the output of which is connected to the second input of the control unit.

EFFECT: high speed of the device, which enables to minimize the consequences of the accident.

1 cl, 1 dwg