发明申请
- 专利标题： CONTROLLING VARIABLES IN BOILER PRESSURE VESSELS
- 专利标题（中）： 控制锅炉压力容器中的变量
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申请号： US12690197申请日： 2010-01-20
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公开(公告)号： US20110174240A1公开(公告)日： 2011-07-21
- 发明人: Donald W. Bairley , Wesley P. Bauver, II , Francois Droux , Ian J. Perrin , Christoph Ruchti , Falk Ruecker , Glenn T. Selby
- 申请人： Donald W. Bairley , Wesley P. Bauver, II , Francois Droux , Ian J. Perrin , Christoph Ruchti , Falk Ruecker , Glenn T. Selby
- 申请人地址： CH Baden
- 专利权人： ALSTOM TECHNOLOGY LTD.
- 当前专利权人： ALSTOM TECHNOLOGY LTD.
- 当前专利权人地址： CH Baden
- 主分类号： F22B37/02
- IPC分类号： F22B37/02 ; F22B37/22 ; F22B37/26
摘要：
A method of controlling stress in a boiler pressure vessel comprises limiting the diameter of a drum (10) of the boiler pressure vessel and preheating at least a portion of the wall (12) of the drum (10). Limiting the diameter of the drum (10) allows pressure in the drum (10) to be increased for a given mechanical stress. Furthermore, preheating the wall (12) of the drum (10) reduces peak thermally induced stresses in a material from which the drum (10) is fabricated.
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