Abstract:

Based on the problem of a M701DA type gas-steam combined cycle unit exhuast temperature deviated from base value in certain load ranges, and deviated from waste heat boiler optimum design temerature, control logic of compressor inlet guide vent (IGV) was analyzed. The adjustment measurement of IGV was indicated. Turbine exhaust temperature was increased. The objective of to reduced gas turbine generating gas consumption was achieved.

Key words:

compressor, IGV, improving adjustment, generating gas consumption