Залежність температури відхідних газів котлів від зміни електричного навантаження ТЕЦ

Abstract

One of the efficient methods of inexpensive modernization of thermal powerplant is to reduce the temperature of effluent gases of the boilers (texh). The purpose of this paper was to carry out the experimental computation investigation of a degree of influence of the operation mode and performance factors (feed water flow rate and temperature, electric and thermal power) on the temperature of effluent gases of the boilers with the retention of the longevity of gas escape ducts. The attempts made to reduce the temperature of effluent gases in order to increase an efficiency factor of the boilers are restricted by the influence of (texh) on the longevity of heating surfaces both of the convective ducts and the entire gas-air duct (air heaters, gas-air mains, and the smoke pipe), taking into consideration the dew point (td) at which the combustion gas moisture condensation is possible. Based on the analysis of performance indices of the steam boilers of a ТGМP-314А type the regression equation was formed.