TURBOCOMPRESSOR SURGE CONTROL METHOD Russian patent published in 2005 - IPC

FIELD: mechanical engineering; turbocompressors.

SUBSTANCE: according to proposed surge control method including forming of control action onto position of surge valve by closed proportional-integral control circuit at deflection of operating point from control line whose position is not constant and can be shifted from base position to stable modes position, said control line is shifted to provided noninertia following of operating point with preset displacement to surge line with limiting of shift of control line to zone of stable modes from base position at preset value with limitation of approach of control line to surge line by base position of control line and limitation of shift of control line towards surge line at preset maximum speed, and at moment when operating point of control line moving in direction of surge line intersects control line, the latter is fixed for entire period of location of operating point between actual position of control line and surge line.

EFFECT: improved efficiency, economy and reliability of surge control.

3 cl, 4 dwg