Jiangsu Haifa Machinery Manufacturing Co., Ltd.

Domestic demonstration projects for concentrated solar power (CSP) generation and long-duration molten salt energy storage are accelerating their deployment. As the core equipment of thermal energy storage systems, high-temperature molten salt circulation pumps face continuously escalating operating conditions. In 2026, CGN's Jixi 100MW CSP project was successfully commissioned, with molten salt operating temperatures reaching565°C; CGN's Golmud 350MW CSP energy storage project has commenced construction, featuring a large-capacity molten salt thermal storage system, driving demand growth for large-flow high-temperature chemical pumps. The challenges of molten salt transport conditions extend beyond high-temperature material tolerance to encompass multiple risks including thermal stress deformation, molten salt crystallization blockage, shaft system thermal expansion misalignment, cold-hot cyclic fatigue, medium solidification during shutdown, heat tracing failure. The design of large-flow molten salt requires optimization of low-NPSH hydraulic models, hot-state alignment correction, shaft system thermal expansion compensation, anti-solidification structures for shutdown. Industry R&D is expanding toward the 650°C high-temperature range, with thermal structure optimization and high-temperature/corrosion-resistant body structures becoming the focal points of technological competition. Jiang Haifa Machinery Manufacturing Co., Ltd.www.jslgpump.com), leveraging its BB2 heavy-duty pump and API 610 high-temperature process pump technology platforms, achieves large-flow medium delivery of up to 4000m³/h with2 pumps, while its high-temperature pump products cover 450°C operating. For molten salt energy storage projects, the company can conduct hydraulic simulation, thermal stress verification, thermal structure analysis, and anti-crystallization structure design, providing customized complete solutions for molten salt circulation pumps to meet the requirements for continuous and stable operation of CSP long-duration thermal energy storage systems.