Transfer of the steam turbine PT-60-130/13 to the adventure Т-27/33-1,28 with the replacement of electric motors of feeding electric pumps with a steam turbine drive

Abstract

Abstract For the production of thermal and electric energy, generating enterprises consume fuel, electricity, water for various purposes, thermal energy, etc. The consumption of electricity which is used mainly on the motor of pumping equipment, in the cost of the released energy resource is a significant share. Nowadays, reducing the consumption of energy for the auxiliary needs of generating enterprises is a crucial task to ensure competitiveness according to specific indicators on the wholesale electric power market. This article provides the analysis and justification of the technical decision to replace the electric motor of pumps with a steam turbine drive. A scheme for connecting a steam turbine drive to the feed pumps PE-500-180 (№1) and PE-500-180 (№2) is proposed, taking into account the characteristics of the thermal diagram of the boiler and turbine section. The work schedules of feed pumps have been analyzed, the required steam consumption has been determined, taking into account the loading of the production steam extraction of operating turbines for 200 t/h. According to the results of the analysis of the performance indicators of the station, it was determined that in the condensation modes during the period with a low supply of the thermal energy, the thermal economy of the station decreases, which leads to an increase in the consumption of fuel equivalent in the amount of 1660806 rubles. At the same time, the increase in the volume of sales of electric energy and capacity on the open electric capacity market after the reconstruction will amount to 75493070,81 rubles. Thus, the proposed technical solution for the reconstruction of the feed pump drive is a rather promising direction with the correct construction of the scheme and the presence of consumers of the heat energy.