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 (CN)
XU JIANFEN (CN)
XIONG XIANZHOU (CN)
MAO QIZHOU (CN)
LIN JINHUI (CN)
FANG YIZHOU (CN)
XU JIANFEN (CN)
XIONG XIANZHOU (CN)
MAO QIZHOU (CN)
LIN JINHUI (CN)
FANG YIZHOU (CN)
Application Number:
PCT/CN2018/076989
Publication Date:
August 08, 2019
Filing Date:
February 23, 2018
Export Citation:
Assignee:
FU JIAN PROVINCE DONG GUO ENERGY SAVING TECH CO LTD (CN)
International Classes:
F01K7/22; F01K3/14; F01K11/02; F27D17/00
Foreign References:
| CN204457896U | 2015-07-08 | |||
| CN201407913Y | 2010-02-17 | |||
| JP2007263084A | 2007-10-11 | |||
| JP2002021508A | 2002-01-23 | |||
| JP2002303158A | 2002-10-18 |
Attorney, Agent or Firm:
FUZHOU YUANCHUANG PATENT AND TRADEMARK AGENT LTD. (CN)
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