Ultra-supercritical complementary energy and waste heat cooperative power generation system for iron and steel plant and working method thereof

The invention provides an ultra-supercritical complementary energy and waste heat cooperative power generation system of a steel plant and a working method thereof, which are used for recycling waste heat steam with utilization value generated by a boiler of the steel plant to a complementary conden...

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Bibliographische Detailangaben
Hauptverfasser:	HUANG QIU, LIN JINHUI, LAN GUIQIN, XU JIANFEN, MAO QIZHOU, LIU JIAQI, JIAN YONGQIANG, PENG LONG, CHEN SHAOFENG, FANG GUIPING
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHINBOILERS BLASTING CONTROLLING WATER LEVEL ENGINE PLANTS IN GENERAL ENGINE PLANTS NOT OTHERWISE PROVIDED FOR ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES FEED-WATER SUPPLY HEATING LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING METHODS OF STEAM GENERATION NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER STEAM ACCUMULATORS STEAM BOILERS STEAM ENGINE PLANTS STEAM ENGINES STEAM GENERATION SUPERHEATING OF STEAM WEAPONS
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Beschreibung
Zusammenfassung:	The invention provides an ultra-supercritical complementary energy and waste heat cooperative power generation system of a steel plant and a working method thereof, which are used for recycling waste heat steam with utilization value generated by a boiler of the steel plant to a complementary condensing type turboset for power generation. The boiler comprises a blast furnace gas boiler for generating ultra-supercritical ultrahigh-temperature steam, a medium-pressure waste heat boiler for generating medium-pressure superheated steam, a low-pressure waste heat boiler for generating low-pressure superheated steam or low-pressure saturated steam, a medium-pressure steam superheating device and a low-pressure steam superheating device; ultra-supercritical superhigh-temperature steam generated by a blast furnace gas boiler is conveyed to a high-pressure cylinder of a steam turbine and becomes medium-pressure superheated steam after acting; the superheated steam exhausted by the turbine high-pressure cylinder is reh