汽轮机油封

Steam turbine oil seals

Abstract

本实用新型涉及汽轮机油封,包括油挡体,油挡体为圆柱形,且圆柱形的周面具有突出的凸块;油挡体沿轴线设置有通孔,油挡体内设置有三个环形的安装槽,三个安装槽内分别嵌设有内油挡片,油挡体的一个端面设置有外油挡片,内油挡片和外油挡片均为圆环形片状,环形中间为油挡片孔;油挡体还设置有多个回油孔,回油孔一端连通通孔,另一端通向油挡体周面外部,回油孔分布在油挡体的一个半侧,且位于两个油挡片之间。本汽轮机油封,在油挡体的通孔内设置三层内油挡片,油封体端部再设置一层外油挡片,总共四层油挡片能加强密封效果,而且油挡片之间设置有回油孔,回油孔从油挡体的通孔通向外部的回油箱,便于释放润滑油的压力,避免泄露。
The utility model relates to a steam turbine oil seals, including the oil catch body, the oil catch body is for cylindrical, and columniform is global has an outstanding lug, the oil catch body is provided with the through -hole along the axis, and the oil catch is internal to be provided with three annular mounting groove, inlays respectively in the three mounting groove and is equipped with the inner grease retainer piece, and a terminal surface of the oil catch body is provided with outer oil catch piece, and the inner grease retainer piece is round annular plate shape, the annular middle oil catch film perforation that is with outer oil catch piece, the oil catch body still is provided with a plurality of oil gallerys, and oil gallery one end intercommunication through -hole, the other end access to the global outside of the oil catch body, and the oil gallery distributes half sidely of the oil catch body, and is located between two oil catch pieces. This steam turbine oil seals sets up three -layer inner grease retainer piece in the through -hole of the oil catch body, the oil blanket end of body sets up the outer oil catch piece of one deck again, and sealed effect can be strengthened to four layers oil catch piece altogether, is provided with the oil gallery moreover between the oil catch piece, and the through -hole that the oil gallery was personally experienced sth. Part of the body from the oil catch accesss to outside oil sump tank, is convenient for release the pressure of lubricating oil, avoids revealing.

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