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Effects of pressure and temperature changes on leak rates for bj-can-7375 primary circulating pump seals

出版	Atomic Energy Of Canada Limited, 1981
URL	http://books.google.com.hk/books?id=hXVu0AEACAAJ&hl=&source=gbs_api

註釋Tests of three variants of the bj-can seal design being used in primary circulating pumps at the bruce nuclear generating station are described. this seal is a multi-component assembly. it suffers some effects of radial friction and slip at the interfaces. in design, these effects were analyzed in an attempt to reduce them as much as feasible. such analysis is described. results show that for selected sequences of pressure and temperature changes there is good correlation between predicted and actual leak rate response. hysteresis in the response is confirmed, and sensitivities and fricti on-dependent limits are quantified. the bj-can3 variant with one-piece rotor is shown to have superior characteristics - to be much less affected by radial friction because of elimination of the rotating interface. this work should remove all doubts about the practical value of deflection analysis. its proof as a design tool for bj-can seals heralds a new understanding and the coming of a "new generation" of commercial seals.