CGN's "Summit Plan" Hydrogen Purity Control Technology for Nuclear Power Promoted at Hongyanhe Nuclear Power Base

Recently, the promotion meeting for key scientific research achievements under CGN's "Summit Plan" was held at the Hongyanhe Nuclear Power Base. Experts from CGN and CNNC nuclear power bases, research institutes, and equipment manufacturers gathered at Hongyanhe to conduct technical exchanges and achievement validation and promotion. Wang Wenfeng, member of the Party Committee and Deputy General Manager of the company, attended the meeting.

The key technology promoted this time is the innovative hydrogen purity control technology for nuclear power half-speed turbogenerators, which can significantly reduce generator windage and friction losses, lower hydrogen consumable consumption, and eliminate the risk of high-frequency purification operations on units. Based on operational data calculations, the annual comprehensive benefit per unit exceeds 2.6 million yuan, saving 2,100 man-hours, achieving comprehensive improvements in safety, cost, and operation and maintenance efficiency.

According to expert panel validation, this technology has strong adaptability and can be widely applied to similar imported nuclear power units of both groups. It can also be extended to large-scale thermal power and gas turbine generating units, demonstrating broad prospects for cross-industry promotion. As the first scientific research project at Hongyanhe Nuclear Power to achieve market-oriented transfer of independent core technology, this project has opened up a key channel for the industrialization and market-oriented output of frontline nuclear power operation and maintenance research achievements, providing a technical model for domestic nuclear power industry localization upgrades and solving similar equipment operation and maintenance challenges.

This scientific research project was developed by the Zhang Lijun Innovation Studio of the Mechanical Department at Hongyanhe Company. The research initiative began in September 2020 and was incorporated into the Group's "Summit Plan" special research system in 2023. After years of experimentation and technical iteration, the project team achieved independent control of core operation and maintenance technology in 2025; in 2026, it passed authoritative appraisal, reaching an internationally advanced level overall with fully independent intellectual property rights. The project has successively won the First Prize of the Quality Award at the CGN Operations Challenge and the First Prize of the Company's Science and Technology Award, with 1 utility model patent authorized and 6 invention patents accepted.

Zhou Shengwen, Deputy Chief Engineer of the company, along with personnel from the Mechanical Department, Contract and Procurement Department, and related technical staff, participated in the promotion event.