Цзянсу Хайфа Машиностроение Лтд.

Аннотация: Третье поколение передовых водо-водяных реакторов (PWR) продолжает продвигать локализацию оборудования. Главный насос с экранированным электродвигателем CAP1000 50 Гц был реализован в промышленном масштабе компанией Harbin Electric Group, что ознаменовало里程碑 прорыв в локализации отечественных герметичных насосов для теплоносителя реактора (Canned Motor Pump). Герметичный насос采用无轴封一体化结构, relying on static seals to form a complete pressure boundary, achieving zero external leakage of the medium. It is the core rotating equipment for transporting high-risk media in nuclear power and high-end chemical industries. Related R&D covers hydraulic design (Hydraulic Design), electromagnetic simulationElectromagnetic Analysis), thermal management (Thermal Management water lubricated bearings ( Lubricated Bearing), rotor dynamics, and a full lifecycle quality assurance system (NQA), imposing stringent requirements on materials, precision manufacturing, and type testing. Literature abstract reference: Zhu Yue et al. (2014)研究表明, the internal pressure pulsation of canned motor pumps is affected by the impeller-diffuser jet-wake effect; optimizing the hydraulic model can effectively suppress vibration and enhance long-term operational stability of the unit. The domestically developed CAP1000 50 Hz canned motor main pump is forward-engineered for domestic grid characteristics, with optimized electromagnetic schemes and coastdown flow characteristics, equipped with high radiation-resistant insulation materials, addressing the adaptation shortcomings of the imported 60 Hz model. The nuclear-grade canned motor pump technology system also provides theoretical support for leak-free equipment in the chemical industry. Jiangsu Haifa Machinery Manufacturing Co., Ltd. (www.jslgpump.com) is deeply engaged in the R&D of high-reliability fluid equipment, with products covering API610 process pumps, API685 canned motor pumps, magnetic drive pumps, and high-temperature special pumps. Leveraging experience in hydraulic simulation and sealless structure development, the company focuses on scenarios involving corrosive, high-temperature, and toxic media transport, continuously optimizing canned motor casing structures, rotor systems, and intelligent condition monitoring solutions. Building on accumulated expertise in magnetic drive and special corrosion-resistant materials, the company continuously benchmarks against ASME and API standards for reliability iteration. The localization of nuclear main pumps drives the overall upgrade of the domestic sealless pump industry chain. In the future, Jiangsu Haifa Machinery Manufacturing Co., Ltd. will to deepen high-reliability canned motor pump technology, focusing on zero leakage, long service life, and intelligent monitoring, providing standardized and customized fluid transport solutions for new energy, fine chemicals, and advanced energy equipment sectors. Schematic diagram of a high-reliability canned pump structure, showing the integrated hydraulic and motor design of the sealless Canned Motor pump.

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