At the end of the year, the reporter learned from Harbin Boiler Factory Co., Ltd. of Harbin Electric Power Group Co., Ltd. that the Huaneng Laiwu Power Generation Co., Ltd., which was independently designed and manufactured by Haguo, has successfully passed the 168-hour trial run of the Million Double Reheat Ultra-Supercritical Unit 6 boiler. The main parameters of the project reached the design value. This is the new world record for the reheating boiler steam parameters and unit efficiency after the successful operation of the first secondary reheating Huaneng Anyuan power plant in China. The design parameters of the unit are the world's largest, highest temperature and most efficient million secondary reheat boilers. The main steam pressure is 32.87 MPa, the steam temperature is 605/623/623 degrees Celsius, and the coal consumption for power generation is 256.16 g/kW. Time. At the same time, the unit is the first million ultra-supercritical tower furnace independently developed by Haguo, which is of great significance to market development.
According to reports, at the beginning of the project implementation, Haguo set up a second re-heating leading group to form a design, manufacturing, commissioning and service team. In the process of research and development, adopting a variety of advanced design concepts, through the innovative design, the three steam temperatures of the main steam, the primary reheat and the second reheat are simultaneously controlled, and the outlet temperature exceeds 600 ° C, and the steam temperature adjustment mode The system is more complicated and difficult to integrate; the whole furnace numerical simulation is used to accurately analyze the combustion system and its bottom smoke flow field, combined with the flue gas recirculation operation mode to achieve high-efficiency low-nitrogen combustion; the water wall system uses spiral tube technology. Effectively control the wall temperature deviation of the full load range; mainly control the flue gas recirculation, the oscillating burner and the regulating baffle are used as the temperature adjustment means, and successfully realize the control of the main steam and the two high temperature reheater steam temperatures, ensuring the control Boiler performance indicators.
The secondary reheating power generation technology is the key research technology of the National Energy Technology “Twelfth Five-Year Plan†and is the demonstration technology for the “2014-2020 Coal Energy Energy Saving and Emission Reduction Upgrade and Transformation Action Planâ€. There are 4 secondary reheat boilers currently put into operation in China, and 3 of them are independently developed, designed and manufactured by Harbin. It is reported that the successful operation of the million-year reheat boiler of Huaneng Laiwu Power Plant indicates that the technology of the second reheat boiler of Haguo is more mature and reaches the world advanced level.
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