en.Wedoany.com Reported - The 100MW tower-type molten salt solar thermal power generation project of Xinhua New Energy in Jinghe, Xinjiang, has reached a key construction milestone. The first tube panel of the receiver was precisely hoisted to the top of the over 200-meter-high receiver tower on May 30, marking the full commencement of the core equipment installation phase. The project, located in northwestern China, is being undertaken by a consortium led by Shouhang Hi-Tech Energy Technology Co., Ltd. as the PC general contractor.
The hoisting operation lasted 30 minutes, using a D800-42 tower crane as the main lifting equipment. The first tube panel installed measures 2.865 meters by 22.5 meters and weighs approximately 16.5 tons, achieving millimeter-level alignment under the direction of the project team. According to the on-site project manager from Shouhang Hi-Tech, the entire receiver is assembled from 16 tube panels of the same specification into a cylindrical structure with a rated thermal power of 250 MWt, serving as the core equipment for converting solar energy into thermal energy in the solar thermal power plant. The successful first hoisting has paved the way for the subsequent batch installation of tube panels, positioning of the buffer tank, and construction of auxiliary facilities at the tower top.
Shouhang Hi-Tech is one of the few companies in China that possesses the complete proprietary technology for 100MW-class tower-type molten salt receivers, having built a full industrial chain from design and manufacturing to installation and commissioning. The company's independently developed "100MW Molten Salt Tower-Type Solar Thermal Power Plant Receiver" was recognized as a first (set) major technical equipment by the National Energy Administration and has successively won the First Prize for Scientific and Technological Progress from the China Renewable Energy Society and the First Prize for Scientific and Technological Progress from Gansu Province.
In terms of technological innovation, Shouhang Hi-Tech has overcome numerous technical challenges of the solar thermal receiver under extreme operating conditions. Addressing conditions such as local high heat flux density up to 1.2 MW/m², corrosion by molten salt at 560°C, thermal fatigue from frequent start-stop cycles, and strong wind-induced vibrations at high altitudes, the company employs CFD and thermal-stress multi-physics coupled simulation technology to achieve precise control of tube panel temperature gradients and flow field distribution. In the field of material localization, Shouhang Hi-Tech, in collaboration with Baosteel, developed the SHBG-2 nickel-based alloy substrate, and jointly with the Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, developed a nano high-entropy spectrally selective absorbing coating, breaking foreign technological monopolies. The self-developed coating has a solar absorptance of no less than 95%, with heat absorption efficiency approximately 3.9% higher than imported products. The related technology has achieved stable operation for many years at the Dunhuang 10MW and 100MW solar thermal power plants.
The receiver for the Jinghe project uses binary molten salt as the heat transfer and storage medium, with a design outlet temperature of 560°C, an overall heat absorption efficiency of no less than 92%, and a design service life of 30 years. It is equipped with 16,179 heliostats, with a total heat collection area of approximately 530,000 square meters. Upon full commissioning, the project will have a thermal storage capacity of over 10 hours, enabling 24-hour continuous and stable power generation, providing peak-shaving power for the Xinjiang power grid.
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