Turbocompressor assembly with a cooling system

摘要

A turbocompressor assembly is provided, which is divided along a rotor axis into at least three sections. The three sections include a bearing section having an active magnetic bearing, a motor section including a motor having a stator arranged along the rotor axis, the stator enclosing a circumferential motor gap formed between the stator and the rotor, and a compressor section having a compressor for compressing a cooling fluid. A gas-tight housing encloses the rotor, the bearing section, the motor section and the compressor section. A cooling system is provided having an inlet for supplying the pressurized cooling fluid to the bearing section and the motor section through a fluid channel positioned between the bearing section and the motor section. The cooling system includes a throttling device positioned adjacent to the motor gap for limiting the flow of cooling fluid from the fluid channel to the motor gap.

主权项

1. A turbocompressor assembly, the turbocompressor assembly being divided along an axis of a rotor into at least three sections, the at least three sections comprising:
a bearing section having at least one active magnetic bearing to support the rotor, a motor section comprising a motor having a stator arranged along the axis of the rotor, wherein the stator encloses a circumferential motor gap which is formed between the stator and the rotor, and a compressor section having a compressor for compressing a cooling fluid; wherein the turbocompressor assembly further comprises: a common gas-tight housing enclosing the rotor, the bearing section, the motor section and the compressor section; and a cooling system having an inlet for supplying the pressurized cooling fluid to the bearing section and the motor section through a fluid channel positioned between the bearing section and the motor section, wherein the cooling system further comprises a throttling device positioned adjacent to the motor gap for limiting the flow of cooling fluid from the fluid channel to the motor gap, wherein the compressor section is arranged adjacent to the motor section, wherein the compressor section receives the cooling fluid from the motor gap and supplies a compressed cooling fluid to the bearing section and the motor section through the inlet.