TURBINE EXPANDER-COMPRESSOR, METHOD OF ITS ADJUSTMENT AND CONTROLLER Russian patent published in 2015 - IPC F25B9/06 F01D17/16 

FIELD: machine building.

SUBSTANCE: invention relates to turbine expander-compressor, method of its adjustment and controller. The turbine expander-compressor contains expander, compressor and controller. The expander is made with possibility of expansion of the supplied gas and contains impeller and first set of movable inlet guide vanes secured to the expander, and made with possibility of pressure adjustment of the supplied gas. The compressor is made with possibility of gas compression supplied from the expander. The compressor contains impeller, shaft and second set of movable inlet guide vanes secured to the compressor and made with possibility of pressure adjustment of gas supplied to the compressor. The shaft is made to make easy support and rotation of the impellers pf the expander and compressor. The controller is connected to the second set of the movable inlet guide vanes, and is made with possibility to receive data of shaft rotation speed, pressure and temperature of the supplied gas, and pressure and temperature of the gas at the expander output, with possibility to regulate the second set of the movable inlet guide vanes to regulate pressure of the gas supplied to the compressor to ensure maximum ratio between the speed of rotation and enthalpy drop in the expander at non-standard operation conditions.

EFFECT: improved efficiency of the turbine expander-compressor at non-standard operation conditions.

10 cl, 6 dwg