According to industry experts, in the world's largest water conservancy project, 8 of the 12 units of the right bank power station are all marked by the independent manufacturing of domestic enterprises. In only six years, China has crossed the gap with foreign countries for 30 years. The realization of the localization of extra large hydroelectric generating units.
The localization of the Three Gorges hydroelectric generating unit is not a new topic. In the re-argument of the Three Gorges Project in the 1980s and 1990s, people once again put forward this propositionâ€”to achieve power generation in the Three Gorges with major equipment made by China itself.
As we all know, the technical parameters, capacity and scale of major equipment of the Three Gorges Project have reached or exceeded the current level in the world. The Three Gorges hydroelectric generating unit is the largest, largest diameter and heaviest unit in the world, and is the core of the Three Gorges Project. One of the parts. Regardless of national dignity or national interests, it is impossible to let the Three Gorges unit so large equipment manufacturing market. Therefore, at the beginning of the construction of the Three Gorges Project, the central leadership made clear instructions on the major equipment in the project: on the one hand, actively carry out international cooperation and purchase world-class technologies and products; on the other hand, promote the manufacturing industry in China by introducing advanced technologies. Development is ultimately based on domestic manufacturing.
In the production and manufacture of units of this size, domestic companies have not yet achieved performance and qualifications in the machining and processing technology of hydraulic turbines. In particular, the crown, the lower ring and the blade of the main overcurrent components of the turbine must be imported. Therefore, in the construction of the left bank power station, the combination of technology and trade, technology transfer, joint design, and cooperative production was adopted to introduce and digest foreign technology, and a small number of domestic enterprises participated in manufacturing.
As the production unit of the lower ring of the Three Gorges right bank, the Angang Heavy Machinery developed hydropower products from the end of the last century. It has successfully manufactured the runner blades of Gezhouba Hydropower Station and the upper and lower rings of Chongqing Pengshui Hydropower Station, and accumulated considerable manufacturing technology and experience. The agreement formed by the appraisal committee believes that after the successful development of the Three Gorges runner blade and the upper crown casting in China, the lower ring castings successfully developed by Anshan Heavy Machinery have achieved the same chemical composition, mechanical properties, internal and external quality and dimensional accuracy. The international advanced level has changed the situation that Chinaâ€™s components depend on imports.
It is understood that the appraisal committee suggested that the lower ring castings are expected to be used by Harbin Electric Machinery Co., Ltd. for the fourth turbine runner of the right bank of the Three Gorges Power Station.
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