The key technology of supercritical circulating fluidized bed and the research of oxygen-rich combustion passed the acceptance

On December 29th, experts from the High-Tech Bureau of the Chinese Academy of Sciences organized the acceptance of the key direction project of the Institute ’s knowledge innovation project “Research on Key Technologies of Supercritical Circulating Fluidized Bed and Oxygen-rich Combustion” at the Langfang R & D Base of the Institute of Engineering Thermophysics . Professor Chen Changhe of Tsinghua University served as the leader of the expert group, and formed an expert group with 8 experts from Southeast University, Shanghai Jiaotong University, Western Jiaotong University, Zhejiang University, Shanghai Electric and Shanxi Coal Chemical Industry Institute to participate in the acceptance. The acceptance meeting was chaired by Xia Hongde, director of the Energy Department of the High-Tech Bureau. Liu Guiju, deputy director of the High-Tech Bureau, Zhu Junqiang, deputy director of the Institute of Engineering Thermophysics, Lu Qinggang, the project leader, and the backbone of the project team attended the meeting.

Acceptance meeting site

The implementation period of the project is from January 2010 to December 2011. It is planned to carry out research on the key technologies and integrated schemes of super (super) critical circulating fluidized bed, and research on the technology of oxyfuel combustion in circulating fluidized bed, aiming to provide super (super) Industrial demonstration of critical circulating fluidized bed boiler technology and technical support for pilot-scale circulating fluidized bed oxygen-enriched combustion research. According to the requirements of the project, after two years of careful organization and team work, the project team composed of the project leader and the backbone of science and technology completed all the research tasks on schedule, reached all the assessment indicators specified in the mission statement, and submitted a project acceptance report. And 6 research reports. The project team obtained large-scale cold experimental system, intermediate test verification of 200MW circulating fluidized bed boiler and actual furnace test of 300MW circulating fluidized bed boiler, and obtained the fluidized quality of air distribution plate, flow uniformity of separator, and boiler thermal distribution characteristics , The main key technical achievements such as the heat exchange characteristics of the external replacement heat exchanger; through the integration of key technologies and the overall technical research of the boiler, a 600MW supercritical circulating fluidized bed boiler overall plan with independent intellectual property rights has been formed, which can be used in the supercritical circulating fluidized bed The product design of the boiler, and a general study of the ultra-supercritical circulating fluidized bed program; a 100KW class circulating fluidized bed oxygen-enriched combustion test system was built, which achieved a stable operation of 230 hours and obtained a high oxygen concentration (40%, 50%, 55%) combustion characteristics, heat transfer characteristics and emission characteristics, on this basis, a megawatt-scale circulating fluidized bed oxygen-enriched combustion experimental technical program has been formed.

The expert acceptance team listened carefully to the report of the project leader, reviewed the acceptance materials submitted by the project team, and after full discussion, questioning and evaluation, they unanimously agreed that the project passed the acceptance and highly evaluated the research results obtained by the project team. The completion of the project has laid a solid foundation for the engineering demonstration and industrial development of 600MW super (super) critical circulating fluidized bed boiler technology, and provided technical reserves for the industrial scale-up of circulating fluidized bed oxy-fuel combustion technology. The successful completion of the project has made preparations for the upcoming pilot special projects of the Institute of Engineering Physics "Supercritical Circulating Fluidized Bed Combustion Technology and Demonstration" and "Circulating Fluidized Bed Oxygen Combustion Technology".

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