“The high gorge comes out of the flat lake.” The Three Gorges Dam is the largest water conservancy project in the world today. The Three Gorges Power Station has attracted worldwide attention for its grand scale, large installed capacity, unit size and single unit capacity. Among them, the hydraulic turbine is awe-inspiring in the industry for its huge size, astonishing range of water head and unprecedented technical difficulty. In 1999, the Three Gorges Office of the State Council convened domestic hydraulic experts to conduct many discussions and proposed to develop a runner on the right bank of the Three Gorges with better pressure pulsation and other performance indicators than the left bank. Shi Qinghua volunteered and accepted the most challenging research task in the world's hydraulic research community.
As the technical chief of hydraulic development of the turbines of the Three Gorges Right Bank Power Station, he personally designed and developed the world's first hydraulic turbine without special vibration for the Three Gorges Right Bank Power Station, which shocked the international hydropower industry. On the basis of digesting and absorbing the hydraulic design technology of the turbine on the left bank of the Three Gorges, he innovated a new method of hydraulic design of the turbine on the right bank of the Three Gorges. Through the innovation of the runner blade profile and the runner form, he created the original "small crown outlet Francis turbine runner" Obtained a national invention patent, and the Three Gorges right bank turbine runner hatched from this is the world's first Francis runner without "special pressure pulsation", which greatly improves the hydraulic stability and operational reliability of the Three Gorges right bank turbine. The runner has been verified by the independent test bench of China Water Conservancy and Hydropower Research Institute and the real machine operation test of four units of the Three Gorges Right Bank Hydropower Station. Its excellent hydraulic performance comprehensively exceeds that of the Three Gorges left bank turbine and reaches the world's leading level. It solves the problem that has been troubled at home and abroad. The worldwide problem of "special pressure pulsation zone" in the hydraulic turbine industry completely denies the internationally accepted theory that "special pressure pulsation is caused by the vibration of the hydraulic system" and breaks the myth that "special pressure pulsation cannot be eliminated".
The successful development of the turbine runner on the right bank of the Three Gorges allowed Dongfang Electric Co., Ltd. and Chinese enterprises to compete with world-class companies for the first time, and competed with many strong players at home and abroad at the Three Gorges Right Bank Power Station. In one fell swoop, we won development contracts for four units during the competition. The successful development of the runner on the right bank of the Three Gorges has played a huge role in promoting the independent innovation of a huge number of giant hydraulic turbines in my country in the future. This is a milestone in the independent research and development of giant hydropower equipment in China. It marks that the design and development of giant hydraulic turbines in China has reached the world's advanced level. level, he realized the long-cherished wish of generations of Chinese hydropower equipment manufacturers to equip the Three Gorges with core technologies independently developed by China, and to equip China with major technical equipment independently developed by China, thus realizing the take-off of the national industry. Shi Qinghua's success has been affirmed and praised by the Three Gorges Construction Commission of the State Council, China Three Gorges Engineering Corporation and domestic and foreign peers.