发明授权
- 专利标题: Waste heat recovery system and power generation system with dust filtration
- 专利标题(中): 余热回收系统和带灰尘过滤的发电系统
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申请号: US726403申请日: 1996-10-03
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公开(公告)号: US5988080A公开(公告)日: 1999-11-23
- 发明人: Norihisa Miyoshi , Shosaku Fujinami , Tetsuhisa Hirose , Masaaki Irie , Kazuo Takano , Takahiro Oshita
- 申请人: Norihisa Miyoshi , Shosaku Fujinami , Tetsuhisa Hirose , Masaaki Irie , Kazuo Takano , Takahiro Oshita
- 申请人地址: JPX Tokyo
- 专利权人: Ebara Corporation
- 当前专利权人: Ebara Corporation
- 当前专利权人地址: JPX Tokyo
- 优先权: JPX7-278243 19951003; JPX8-187031 19960628
- 主分类号: F01K23/06
- IPC分类号: F01K23/06 ; F22B1/18 ; F22B31/04 ; F23G5/00 ; F23G5/027 ; F23G5/46 ; F23G5/48 ; F23J15/02 ; F23R7/00
摘要:
In an improved system for recovering heat from a combustion gas produced by burning wastes, the combustion gas or combustible gas produced by partial burning of the wastes subjected to dust filtration in a temperature range of 450-650.degree. C. at a filtration velocity of 1-5 cm/sec under a pressure of from -5 kPa (gage) to 5 MPa before heat recovery is effected. The dust filtration is preferably performed using a filter medium which may or may not support a denitration catalyst. Heat recovery is preferably effected using a steam superheater. The dust-free gas may partly or wholly be reburnt with or without an auxiliary fuel to a sufficiently high temperature to permit heat recovery. The combustion furnace may be a gasifying furnace which, in turn, may be combined with a melting furnace. If desired, the reburning to a higher temperature may be performed under pressure and the obtained hot combustion gas is supplied to a gas turbine to generate electricity, followed by introduction of the exhaust gas from the gas turbine into a steam superheater for further heat recovery. The system can raise the temperature of superheated steam to a sufficient level to enhance the efficiency of power generation without possibility of corrosion of heat transfer pipes by the combustion gas or combustible gas.
公开/授权文献
- US4660441A Transmission control system 公开/授权日:1987-04-28