CAJ | 학술논문

在多泥沙河流上运行的水轮机易受到泥沙磨损和空蚀破坏，其防护措施一直是水电工程中水轮机安全经济运行的一个重要问题。对空蚀破坏及泥沙磨损机理、液态金属材料特性及其在水轮机部件上的适用性作了探讨，对液态金属在铜街子电站水轮机过流部件中的喷涂工艺及其抗泥沙磨损和空蚀破坏的性能展开了分析。分析结果表明：液态金属在使用性能和工艺性能方面能够适用于水轮机，可以提高水轮机的抗磨损性和抗空蚀性。
재다니사하류상운행적수륜궤역수도니사마손화공식파배，기방호조시일직시수전공정중수륜궤안전경제운행적일개중요문제。대공식파배급니사마손궤리、액태금속재료특성급기재수륜궤부건상적괄용성작료탐토，대액태금속재동가자전참수륜궤과류부건중적분도공예급기항니사마손화공식파배적성능전개료분석。분석결과표명：액태금속재사용성능화공예성능방면능구괄용우수륜궤，가이제고수륜궤적항마손성화항공식성。
The turbines in silt-carrying rivers suffer from sediment abrasion and cavitation erosion, and the corresponding countermeasures are always significant issues for the safe operation of hydropower plants. The paper discusses the mechanism of cavitation erosion and abrasion, the characteristics and the applicability of liquid metal material on the turbine components. The spraying technology of liquid metal applied in the water passage components of turbines in Tongjiezi Hydropower Station and the resistance performance to abrasion and cavitation erosion are analyzed. The result shows that liquid metal is appropriate to the tur-bines repair considering the applicability and technological performance, and plays a role in improving the resistance to abrasion and cavitation erosion of turbines.