FIELD: machine building.
SUBSTANCE: invention relates to a system for evaluating the technical state of gas turbine units based on temperature fields and method used therein. A computer-implemented method for remote monitoring of technical state of gas turbine units based on temperature fields consists in performing the following stages: measuring temperature of gas flow from combustion chambers through gas ducts and vane device is measured in gas turbine at outlet, at different moments in time; obtaining the said gas turbine temperature values measured with thermocouples; for each moment of time temperature values obtained from each thermocouple are converted into vector values, where the temperature of the thermocouple is the modulus of the vector, and the angular position of the thermocouple in the plane of the exhaust is its direction; forming, based on the obtained vector values, a resultant temperature vector value, the end of this resultant vector being the epicenter of the thermal field; constructing a coordinate grid with application of an end of a resultant vector thereon; each time adding to the grid the ends of the resultant vectors calculated from incoming data on the new temperature characteristics at the output of the gas turbine at different time intervals; determining value of deviation of ends of new vectors from initial value on coordinate grid.
EFFECT: technical result is higher accuracy of determining temperature deviation from initial value.
16 cl, 3 dwg
