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Title:
NOVEL WASTE ENERGY AND WASTE HEAT RECOVERY POWER GENERATION SYSTEM FOR IRON AND STEEL PLANT AND WORKING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2019/148553
Kind Code:
A1
Abstract:
Provided is a novel waste energy and waste heat recovery power generation system for an iron and steel plant. The system comprises a blast furnace gas boiler (1) generating a high-temperature and ultrahigh-pressure steam, a backpressure type steam turbine (10), a waste heat boiler generating a low-pressure superheated steam or a low-pressure saturated steam, a steam mixer (8) and a condensing type steam turbine (12), wherein a boiler high-pressure output pipe (101) of the blast furnace gas boiler (1) is in communication with a steam inlet end of the backpressure type steam turbine (10); a boiler low-pressure output pipe (201) of the waste heat boiler is in communication with a steam inlet end of the steam mixer (8); the low-pressure superheated steam output by the backpressure type steam turbine (10) is in communication with the steam inlet end of the steam mixer (8) through a low-pressure superheated steam output pipe of the steam turbine; the low-pressure superheated steam in the steam mixer (8) discharged by the steam mixer enters the condensing type steam turbine (12), a steam output end of the condensing type steam turbine (12) is connected to a steam inlet end of a condenser (14), the condenser (14) is provided with a condensate pipe, and the condensate pipe is connected to the waste heat boiler and the blast furnace gas boiler (1) through a water supply pipe. Further provided is a working method for a novel waste energy and waste heat recovery power generation system for an iron and steel plant.

Inventors:
FANG, Guiping (Floor Four, South Side of No. 12 BuildingArea B of Software Park, Gulou Distric, Fuzhou Fujian 3, 350003, CN)
XU, Jianfen (Floor Four, South Side of No. 12 BuildingArea B of Software Park, Gulou Distric, Fuzhou Fujian 3, 350003, CN)
XIONG, Xianzhou (Floor Four, South Side of No. 12 BuildingArea B of Software Park, Gulou Distric, Fuzhou Fujian 3, 350003, CN)
MAO, Qizhou (Floor Four, South Side of No. 12 BuildingArea B of Software Park, Gulou Distric, Fuzhou Fujian 3, 350003, CN)
LIN, Jinhui (Floor Four, South Side of No. 12 BuildingArea B of Software Park, Gulou Distric, Fuzhou Fujian 3, 350003, CN)
FANG, Yizhou (Floor Four, South Side of No. 12 BuildingArea B of Software Park, Gulou Distric, Fuzhou Fujian 3, 350003, CN)
Application Number:
CN2018/076989
Publication Date:
August 08, 2019
Filing Date:
February 23, 2018
Export Citation:
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Assignee:
FU JIAN PROVINCE DONG GUO ENERGY SAVING TECHNOLOGY CO., LTD. (Floor Four, South Side of No. 12 BuildingArea B of Software Park, Gulou Distric, Fuzhou Fujian 3, 350003, CN)
International Classes:
F01K7/22; F01K3/14; F01K11/02; F27D17/00
Attorney, Agent or Firm:
FUZHOU YUANCHUANG PATENT AND TRADEMARK AGENT LTD. (CAI Xuejun, Room 416-419 Floor 5A,No. 9 Building of SOHO in Taihe Square of East Second Ring, Jin An Distric, Fuzhou Fujian 1, 350011, CN)
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