SYSTEM AND METHOD FOR SPINNING UP A ROTARY ELEMENT OF A MECHANICAL DEVICE, PARTICULARLY A TURBOMACHINE

摘要

A system comprising a discharge valve that allows some of the fluid generated by a fluid generating source and intended for a drive torque generating member for a rotary element of a mechanical device to be removed so as to limit the corresponding rotational speed, this being done for a length of time that allows a thermal gradient to be reduced sufficiently that a phenomenon of deformation of said rotary element can be prevented.

主权项

1. A system for spinning up a rotary element of a mechanical device, said system comprising:
a fluid generating source arranged to generate a fluid flow; a drive torque generating member connected to the fluid generating source via a pipe referred to as the main pipe capable of transmitting the fluid generated by the fluid generating source, said drive torque generating member being arranged, when subjected to a flow of fluid, to generate a mechanical force capable of spinning up said rotary element of said mechanical device; and a starting valve arranged to be controlled in such a way as to be brought into one or the other of the following positions: an open position and a closed position, said starting valve being arranged on the main pipe between the fluid generating source and the drive torque generating member in such a way as to form a first section of pipe between said fluid generating source and said starting valve and a second section of pipe between said starting valve and said drive torque generating member, a discharge valve arranged to be controlled in such a way as to be brought into one or the other of the following positions: at least an open position and a closed position, said discharge valve being arranged on an auxiliary pipe connected to said second section of the main pipe in such a way as to create a fork for the transmission of fluid; and a first monitoring unit configured to monitor at least a first parameter allowing information to be provided about a deformation of thermomechanical origin of said rotary element of the mechanical device while it is being spun up.