Low bed pressure-reducing circulated fluid bed boiler combustion process |
Title： |
| Low bed pressure-reducing circulated fluid bed boiler combustion process |
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Application Number： |
200710176731 |
Application Date： |
2007/11/02 |
Announcement Date： |
2008/03/26 |
Pub. Date： |
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Publication Number： |
101149146 |
Announcement Number： |
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Grant Date： |
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Granted Pub. Date： |
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ApplicationType： |
Invention |
State/Country： |
11[China|beijing] |
IPC： |
F23C 10/00 |
Applicant(s)： |
Tsinghua University |
Inventor(s)： |
Yang Hairui, Yue Guangxi, Lu Junfu, Zhang Hai, Liu Qing, Zhang Jiansheng |
Key Words： |
Low bed pressure-reducing, circulated fluid bed boiler, combustion process |
Abstract： |
This invention is a low bed pressure drop circulating fluidized bed boiler combustion technical method, which relates to rapid circulating fluidized bed boiler combustion technique. It makes sure the circulating fluidized bed rapid bed fluid state. The inner bed temperature is controlled within 850-930 degree. The fluidizing wind speed is 4-6.2m/s. The average particle size of circulating materials is smaller than 300mum. The material concentration of the space above combustion chamber second air port is kept 1-15Kg/m3 rapid bed state. This invention can greatly reduce the pressure head of first and second wind machines. Thus, it effectively reduces the power dissipation of assisting engines. In addition, as the space material concentration decreased, gas mixture improved, combustion intensified, the combustion efficiency of boiler is further increased. This invention can also reduce the attrition rate of combustion chamber water-cooled wall heating surface. |
Claim： |
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PCT： |
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