【摘要】 本文主要介绍了高转速水轮机球阀的双密封结构以及由于水推力的作用下，阀体、活门产生变形，为防止由于变形而产生的漏水，因此对阀体、活门的密封结构进行了反变形试验研究，并取得了宝贵的经验，为今后大型水轮机球阀的设计及制造奠定了基础。更多还原

【Abstract】 This article introduces mainly double_sealing structure of ball valve for high_speed turbine and transfigu-ration of valve body and valve disc because of water thrust.So we do the test of the opposite_transfiguration for the sealing structure of valve body and valve disc in order to prevent leakage.We have got the precious experience.It will establish the foundation of the valve ball’s design and manufacture for big_sized turbine.更多还原