Analysis Of Energy-saving Potential For The Regenerative System Of Turbine Unit

Regenerative system is an important part of the thermodynamic system for the coal-fired power unit. It has a theoretical value and practical significance for energy-saving and consumption reduction to analyse the impact on units'thermal economy quantitatively when the regenerative system parameters changed. On the basis of the unified physical model and mathematic model of heat-economic analysis for the coal-fired power units ,the energy-loss analysis models, including auxiliary steam-water flux, heater terminal temperature difference and extraction steam pressure loss, were established. In the mean time, energy-loss analysis models when the above three factors changed in the same time was established. Finally the energy-loss analysis model of the effect of cylinders on steam turbines was established preliminarily. The models supply a new method to the thermal economy analysis for the coal-fired power unit. The models mentioned above in this paper were proved to be correct by the checking calculations.