电动主给水泵系统为核电厂重要系统之一，其功能是将除氧器的水抽出并升压，经高压加热器加热后，送至蒸汽发生器；同时保证在反应堆整个热负荷范围内，能够满足蒸汽发生器二次侧的流量变化要求。

苍南核电高度重视国产化液力偶合器设计、制造、装配质量，在其装配、试验等重要节点落实监督责任，深度参与、严控质量。在首台国产化液力偶合器生产、安装、调试试验这一系列复杂的流程中面临着巨大的挑战。由于设备复杂程度高、控制系统精密，该设备为首次国产化，无前序技术经验可参考，对研发、制造、调试等各环节都造成了挑战。

苍南核电积极借鉴行业内外成功案例，参考群厂相关经验反馈，梳理可在国产化设备中落地解决的问题，推动厂家不断尝试、调整，联系厂家等各方人员共同探讨解决方案。最终，推动落实了温度测量仪表不可弯曲、轴承运行温度优化等多项重大反馈，为首台国产化液力偶合器顺利出厂保驾护航。

The electric main feed pump system is one of the important systems of nuclear power plant. Its function is to extract the water from the deaerator and increase the pressure. After heating by the high pressure heater, it is sent to the steam generator. At the same time, it can meet the requirements of flow variation on the secondary side of the steam generator within the whole thermal load range of the reactor.

Cangnan Nuclear Power attaches great importance to the design, manufacturing and assembly quality of domestic hydraulic couplings, and implements supervision responsibilities at important nodes such as assembly and testing, in-depth participation and strict quality control. In the first domestic hydraulic coupling production, installation, commissioning and testing of this series of complex processes faced with a huge challenge. Due to the high complexity of the equipment and the precision of the control system, the equipment is localized for the first time, and there is no prior technical experience to refer to, which has caused challenges to research and development, manufacturing, debugging and other links.

Cangnan Nuclear Power actively draws on the successful cases inside and outside the industry, refers to the relevant experience feedback of the group plant, sort out the problems that can be solved in the localization equipment, and promote the manufacturers to continue to try and adjust, contact the manufacturers and other parties to discuss solutions. Finally, it promoted the implementation of a number of major feedback such as the imbendability of temperature measuring instruments and the optimization of bearing operating temperature, and escorted the first domestic hydraulic coupling to leave the factory smoothly.