SINGLE PIPE HEAT SUPPLY SYSTEM Russian patent published in 2008 - IPC F24D11/02 

FIELD: heat power engineering.

SUBSTANCE: invention relates to centralized heat supply system using waste heat of turbines of condensing power stations and nuclear power stations by means of heat pumping plants. Proposed single pipe heat supply system includes steam turbines of power stations, (CPS, NPS), main heat lines delivering heated system water to serviced town and intertown systems and devices using heat and chemically cleaned system water for town demands. Used as heat source are steam compression heat pumping plants with working medium of thermodynamic cycle featuring low critical parameters, for instance, carbon dioxide which after compression in compressor is at supercritical pressure forming triangular Lorentz cycle. Used as low potential heat source is waste heat of turbines of power stations which is transmitted to evaporators of heat pumping plants according to closed circulating water circuit with pipelines to receive and discharge water into water supply source of power station. Used as heat carrier is mechanically cleaned water supply source which, after preliminary heating in first stage of heat exchanger-heater of heat pumping plant, gets for chemical water cleaning and then is after heated in second stage. Invention makes it possible to reduce power consumption to provide heat supply down to zero value, provides possibility to increase power output of power station owing to additional generation of power by gas turbine engines.

EFFECT: power consumption, improved economy characteristics of power station owing to additional generation of heat, improved ecological characteristics.

2 cl, 1 dwg