EQUIPMENT FOR ADJUSTING LUBRICATING OIL TEMPERATURE OF BEARING FOR TURBINE INSTALLATION USING LOW BOILING POINT OPERATIVE MEDIUM

摘要

PURPOSE:To maintain turbine output always stably by adjusting temperature of oil supplied to bearings to a desired temperature with operative medium liquid for a turbine. CONSTITUTION:An apparatus for adjusting temperature of lubricating oil for bearings is constituted from an oil cooler 21, a cooling water circuit provided between a Rankine cycle water supply piping 6 and the oil cooler 21, a bypass 27 provided between a lubricating oil cycle oil supply piping 8 and the oil cooler 21 and having an adjusting valve 28 for lubricating oil flow and an opening control section of a flow adjusting valve 28. The opening control section of the flow adjusting valve 28 detects temperature of supplied oil mixture of lubricating oil cooled in the oil cooler 21 and lubricating oil passed through the by-pass 27 without being cooled, by a temperature detecting element 29 to convert the output signal to air signal 31 which adjusts the opening of the flow adjusting valve 28. Thus, since an amount of operative medium liquid flowing in a heat exchanger 1 is maintained constant, vapor of the operative medium is held at a certain flow and the output of a turbine is always maintained constant.