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According to reports, the reactor building circulator is a key equipment for nuclear power plants. It is located in the critical path of engineering installation and overhaul of the unit. It has special design requirements, high technical content, and complex manufacturing processes. It has accuracy, reliability and safety for lifting and positioning. Very high demand. Therefore, this kind of equipment was produced by foreign manufacturers in the past. The key technologies are subject to people and become the bottleneck for the breakthrough of China's nuclear power equipment manufacturing.
In order to promote the localization of annular cranes in reactor buildings, Dalian Heavy Industry and Crane Group began the research and development of nuclear power plant toroidal cranes. It has completed more than 10 localized scientific and technological research missions and passed the acceptance of the Ministry of Machinery. The 1 million-kilowatt power plant ring crane project of Lingao Nuclear Power Plant Phase II, which was accepted this time, is a key project that implements and implements the national revitalization of the domestic equipment manufacturing industry, the realization of major technological equipment autonomy, and the promotion of domestic enterprises to participate in the manufacture of nuclear power equipment. The equipment has a combined lifting capacity of 407 tons, a main lift height of 42 meters and a span of 35.4 meters. It is the first million-kilowatt nuclear ring lifting equipment independently designed and manufactured by domestic enterprises. During the development of the equipment, Dalian Heavy Industries·Ligging Group, on the basis of absorbing and digesting advanced foreign technology, has performed a number of technological improvements and enhancements, applying a single fault protection system, automatic positioning system, bus-type wireless remote control system, etc. The advanced technology in the world today has further improved the overall design of the circulator. They also strictly followed the nuclear power plant's quality assurance system and management procedures to design, manufacture, organize, and manage the product, ensuring the accuracy, safety, and reliability of the equipment.
(Source: Liaoning Daily)
"Take the trial start!" On the morning of March 27, with an order, Dalian Heavy Industry·Ligging Group Co., Ltd. designed and manufactured the second-phase engineering of Ling Ao Nuclear Power Plant, the first domestic crane of a million kilowatt nuclear power plant reactor ring crane Normal operation along the track, hoisting equipment is working properly, all other performance and technical parameters meet the design requirements, indicating the successful acceptance of the special equipment.
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