Fossil fuel-fired continuous-flow steam generator
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United States of America Patent
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Sep 10, 2002
Grant Date -
Jan 3, 2002
app pub date -
Jun 18, 2001
filing date -
Dec 18, 1998
priority date (Note) -
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Abstract
The fossil fuel fired continuous-flow steam generator has a gas turbine combustion chamber for fossil combustibles. On the heating gas side a vertical gas extractor is mounted downstream of a horizontal gas extractor. The walls surrounding the combustion chamber are composed of vertical evaporator tubes that are welded together. During operation the temperature differences between adjacent evaporator tubes of the combustion chamber are kept as low as possible. The burners are arranged at the level of the horizontal gas extractor. For a number of evaporator tubes which can be simultaneously impinged by the flow medium the ratio of the steam generating capacity M (in kg/s) at full load and of the sum A (in m.sup.2) of the inner cross-sectional surfaces of the same evaporator tubes is less than 1350 (in kg/sm.sup.2).
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