Daily Starting And Stopping Effect On 9FA Combined-cycle Unit

Unit 1 since the June 2, 2005 Zhejiang Banshan natural gas power generation project of grid connected power since, domestic at present nearly forty sets of 9FA gas steam combined cycle unit in the network business operation. This type of generator has a clean, efficient,environmental protection and other advantages; at the same time, because of the start and stop operation quickly, increase or decrease the load and fast wait for a characteristic, make the most of them are used for peak load regulation of power grid operation. Gas- and foreign 9FA type steam combined cycle unit basic load, using different operation mode of continuous operation, the type of units by early start and stop domestic night day start stop operation mode. The frequent startup and shutdown caused different influence on the host units,auxiliary equipment and various other equipment, thus the safety and economy of units caused by the influence of different degree.This paper collects the Guangzhou Zhujiang Natural Gas Power Plant Co. Ltd. gas steam combined cycle unit stop and even shipped two kinds of different operation mode of unusual event recording, major equipment failure and hidden trouble reports, various economic indicators data, maintenance cost data etc. the original material on opening, and these materials are compared, analysis, calculation and conclusion. On the basis of this finding on the start and stop of the running mode of 9FA type gas- steam combined cycle unit safety and economy influence aspects of occurrence, influence the occurrence of ways, from many aspects to determine the date of start stop and the causal relationship between safety and economy, and calculated the day start and stop the specific value on the economic effects of the.Finally, according to the daily start and stop each concrete aspect way affect the safe and economic operation of units, combined with a variety of operation and maintenance of the practical application effect are means of effective measures, and to improve the 9FA gas-steam combined cycle unit operation safety and economy and give some useful suggestions.