对LNG海水提升泵用YLKK500-8TH立式电机进行了创新性设计。通过电磁指标设计实现了机械效率优化；采用“电机减振机座”结构强化了机座刚度，提高了电机稳定性；采用“增强型端盖”结构降低了机械振动，提高了电机可靠性；采用合理的通风散热系统，有效降低了电机温度；应用“双向推力轴承”降低了电机使用成本，延长了轴承使用寿命。YLKK500-8TH电机设计从电磁、结构、材料、轴承等方面的技术创新，使得实际运行数据高于国内行业标准，达到了国外先进水平，在制造业具有潜在推广价值。

Innovative design on YLKK500-8TH vertical motor for LNG seawater lift pump is performed. Its mechanical efficiency optimization is implemented by electromagnetic design. Damping frame for motor is adopted for its enhancement on stiffness and improvement on stability. Enhanced end cover is adopted for reduction on motor’s vibration and improvement on its reliability. Temperature of motor is effectively reduced using feasible ventilation system. Moreover, a two-way thrust bearing is used to reduce its cost and prolong its life. Technological innovation on YLKK500-8TH motor design from electromagnetics, structure, material and bearing etc., makes its actual data higher than that of the domestic industry standards, while reaching the international advanced level, implying its potential application value in manufacturing industry.