Abstract
In this paper, the research and development of circulating fluidized bed (CFB) technology by Dongfang Boiler Group Co., Ltd (Dongfang Boiler) in recent years and the understanding of its future development trend are summarized. Based on several decades’ accumulation, Dongfang Boiler has developed two types of supercritical CFB boilers (350 MW and 600 MW, 25.4 MPa/571 ℃/569 ℃), and both types have been in operation. Additionally, supported by major national research and development program (2016YFB0600204), the scheme of 660 MW advanced ultra supercritical (29.4 MPa/605 ℃/623 ℃) CFB boiler has also been completed and is shown in the present work. In order to use the same material as that of pulverized coal fired boiler with similar parameters, one of the most important researches is to reduce the heat deviation in external heat exchanger (EHE). According to the field test on a 600 MW supercritical CFB boiler and simulation of the flow characteristics of EHE, the deviation characteristic is reappeared, and solution to reduce the heat deviation have been proposed. Additionally, with the stringent requirement of pollutant emission from coal-fired units in China, a series of flue gas cleaning technologies can be used. The recommended flue gas cleaning system for a CFB boiler is discussed.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
