PROCEDURE AND DEVICE TO PROTECT AGAINST EROSION-CORROSION OF STEAM TRANSPORTATION DUCTS FROM THE HIGH PRESSURE PHASE OF A TURBINE.

摘要

PROTECTION PROCEDURE AGAINST EROSION-CORROSION OF STEAM TRANSPORTATION DUCTS OF THE HIGH PRESSURE PHASE (1) OF A STEAM TURBINE TRANSFERRED FROM THE POWER STATION, ON THE ONE PART, TO SOME BODIES (34,36,38) OF ITS PHASE OF LOW PRESSURE AND, OTHERWISE, SOME REHEATERS (22A, 23A), WHICH SEPARATE BY CENTRIFUGATION (40,41) THE MAJOR PART OF THE WATER CONTAINED IN THE TRANSFERS AND THE HUMID STEAM SALIDS, OVERHEAT AND / OR A FIRST FRACTION OF THE PARTIALLY DRYING STEAM IS COMPLETELY DRYED (28-33), AFTER INTRODUCTION IN THE BODIES (34,36,38) OF THE LOW PRESSURE PHASE, AND A COMPLEMENTARY FRACTION OF PARTIALLY DRYING STEAM IS TRANSMITTED IN THE REHEATERS (22A, 23A). THE TWO STEAM FRACTIONS ARE SUBJECT TO COMMON DRYING BY CENTRIFUGATION (40,41), AND THE COMPLEMENTARY FRACTION IS SUBMITTED TO A FINAL DRYING BY CENTRIFUGATION (6A, 7A).