Single work material steam combined cycle and combined cycle steam power plant

摘要

The present invention is to provide a single work material steam coalesced cycle and a coalesced cycle steam power plant and belongs to the field of energy and power technology. The condenser and the condensate line are connected to the mixing evaporator via a cycle pump and a preheater. The expander and the steam passage are connected to the mixing evaporator via the medium temperature evaporator, the mixing evaporator and the steam passage are connected to the compressor and the second expander, and the compressor and the steam passage are connected to the high temperature heat exchanger Connected to the expander, the second expander and the steam path are connected to the condenser. The condenser and the condensate line are connected to the medium temperature evaporator via the second cycle pump and the second preheater, and then connected to the third expander and the condenser via the steam passage. The high temperature heat exchanger, the medium temperature evaporator, the mixing evaporator, the preheater and the second preheater communicate with the outside through the heat source medium passage, the condenser and the cooling medium passage also communicate with the outside, and the mixing evaporator and the heat source medium passage The condenser is in communication with the outside, and the condenser is connected to the outside through the cooling medium passage. The expander is connected to the compressor to output power, and the expander, the second expander and the third expander are connected to the outside to output power, thus forming a combined cycle steam power unit .