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Angular contact ball bearing|Thin walled bearing|Ball screw bearing|Deep groove ball bearing|Jiangxi Belief Industrial Co.,Ltd.

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如何改进立式筒袋泵机械密封?

2024-02-23

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TTMC100-2立式筒袋泵的机械密封型号是109B-63,靠弹簧和密封介质(工作介质) 的压力,在旋转的动环和静环的接触面上产生适当的压紧力,使两个端面紧紧贴合,端面间维持一层极薄的液体膜而达到密封的目的。但TTMC100-2立式筒袋泵灌泵时的气体排放阀位于泵出口管段,并不在泵腔内的点,排气时机械密封腔内的气体未排放干净,造成机械密封运转时处于干摩擦状态,引起过热,烧毁次级密封,严重时烧毁整套机械密封。

为此,封堵原泵体排气管线,改进灌泵排气管道,使泵体下毂的气体进入泵的点即机械密封腔(图),在机械密封腔点开孔引出介质,使其形成良好的循环,并重新对排气管路进行安装,使其便于排气和观察。为了现场操作人员能随时根据泵进出口与冲洗液管线出口的压力,掌握机械密封的运行情况。在冲洗液出口管线上加装了压力表,这样可以确保介质在机械密封腔与进口间的可靠循环,及时导出摩擦热量。改进调整后的立式筒袋泵运行两年多,工作状态良好。

(来源:机械密封)

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