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论述了汽轮机蜂窝可调式汽封的工作原理及其结构,以及蜂窝可调式汽封的安全性、密封效应。经过垞电公司对55MW汽轮机组前后轴封改造、应用及蜂窝可调式汽封的运行实践,证明蜂窝可调式汽封对于汽轮机安全、经济运行,防止大轴弯曲、油中进水等恶性事故的发生起重要作用,并可提高汽轮机真空系统严密性。垞电公司通过55MW汽轮机前后汽封的改造,不仅达到了预期的目的,而且积累了丰富的经验。
The working principle and structure of steam turbine honeycomb adjustable steam seal and the safety and sealing effect of honeycomb adjustable steam seal are discussed. After the power company on the 55MW turbine before and after the transformation of the shaft seal, application and operation of honeycomb adjustable seal, that the honeycomb adjustable seal for the steam turbine safety, economic operation, to prevent the shaft bending, oil in water and other serious accidents Play an important role, and can improve the vacuum system tightness of steam turbine. After the transformation of the steam seal before and after the 55MW steam turbine, the power company not only achieved the expected purpose, but also accumulated rich experience.