Apparatus for monitoring corrosive salt solutions in a low pressure steam turbine

摘要

A low pressure steam turbine which is subject to an extremely narrow corrosive salt deposition zone includes rotating and stationary blades. One of the stationary blades has an array of sensors thereon divided up into a plurality of rows, one near the tip of the blade, one near the root of the blade and the third intermediate the two. The sensors are of the type which are flexible so as to conform to the curvature of the blade and will provide an output signal indicative of the presence of a salt solution. The outputs from the sensors are analyzed to provide an indication of the location of the salt solution zone.