桨叶密封

国内早期水轮机桨叶密封较多采用 λ 形结构。该结构在部分机组长期运行工况下，会出现密封失效问题，较难满足部分机组对于长时间稳定运行的使用诉求。研理公司经过持续技术研发，筛选出摩擦系数较低、机械强度较好、耐油、耐水介质的长寿命弹塑聚合物合金，开发 V 型组合密封结构，已帮助国内外多家电厂改善相关密封难题。目前，该产品已在国内多家大型轴流转桨、灯泡贯流电站投入应用，改善设备长期渗漏问题。

In the early stage, λtype structures were widely adopted for turbine blade seals in China. Under longterm operating conditions of some units, this structure may suffer seal failure and struggle to satisfy longterm stableoperation requirements for certain units. Through continuous technical R&D, Techemer Composites has developed an elasticplastic polymer alloy featuring relatively low friction coefficient, good mechanical strength, oilresistance, watermedium resistance and long service life. The selfdeveloped Vtype combined sealing structure has helped many power plants at home and abroad improve relevant sealing challenges. At present, this product has been applied in multiple largescale domestic axialflow propeller and bulb tubular power stations to mitigate longterm leakage issues.