Development and Engineering Application of Sealing and Protection Technology for Key Components of Power Generation Equipment during Storage and Transportation

BAI Wanling; XIONG Zhou; PENG Xiaofeng; HUANG Jiazhi; ZHANG Ai; WU Ligui; JIAO Dongwei

doi:10.19554/j.cnki.1001-3563.2026.03.032

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Packaging Engineering ›› 2026, Vol. 47 ›› Issue (3) : 298-306. DOI: 10.19554/j.cnki.1001-3563.2026.03.032

Development and Engineering Application of Sealing and Protection Technology for Key Components of Power Generation Equipment during Storage and Transportation

BAI Wanling^1,*, XIONG Zhou², PENG Xiaofeng¹, HUANG Jiazhi², ZHANG Ai¹, WU Ligui², JIAO Dongwei²

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Abstract

The work aims to effectively prevent the formation of condensation on the surface of critical core components and water ingress into inner packages during storage and transportation in extreme climates, to avoid causing rust on finely machined surfaces. For large and irregular key core components, a combined protection technology of vapor phase rust prevention, drying, heat shrink sealing and intelligent monitoring was developed. Small test pieces were subject to immersion, spray and condensation fog tests, and engineering applications were carried out on some important hydropower components. After the small packages were opened, the surface of the sample and the anti-rust material was dry, without condensation, rust, or water accumulation. The online temperature and humidity monitoring data showed that the relative humidity inside the package of the key components remained stable and was controlled below 60%RH throughout the long-term storage and transportation process. The humidity fluctuation was extremely small, and no rust occurred on the high-precision surfaces. At the same time, a series of sealing packaging protection standards systems were established to solidify the technological achievements. The intelligent monitoring combined technology of volatile corrosion inhibitor, drying, heat shrinkage and sealing has achieved the research objective. It not only significantly enhances the long-term protection level and reliability of protection quality of key components in extreme environments, but also presents a neat and elegant package appearance, achieving a synchronous upgrade of protection performance and appearance beautification. This has driven the protection process to transform from passive instability to the stage of intelligent monitoring and self-adaptation.

Key words

key core components / volatile corrosion inhibitor / drying, heat shrinkage and sealing / intelligent monitoring

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BAI Wanling, XIONG Zhou, PENG Xiaofeng, HUANG Jiazhi, ZHANG Ai, WU Ligui, JIAO Dongwei. Development and Engineering Application of Sealing and Protection Technology for Key Components of Power Generation Equipment during Storage and Transportation[J]. Packaging Engineering. 2026, 47(3): 298-306 https://doi.org/10.19554/j.cnki.1001-3563.2026.03.032

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