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我厂从日本引进的成套装置中,有一台由神钢法武都拉(SHINKO PFAUDLER)公司制造的搪玻璃反应釜,容积为35m~3。这台大型搪玻璃釜的搅拌器轴上,装有一套双端面机械密封,在单机试车时,运转不到80小时,便突然发生严重损坏而全套报废,损失达3323.10美元。本文介绍这次事故的情况,并探讨其原因。一、机械密封的结构 7~B型双端面机械密封装在搪玻璃反应器顶部的密封箱内,位于一套双列圆锥滚子轴承的下部。在长达6440mm的搅拌器轴上没有底轴承支承,全靠这套唯一的轴承做为支承点,
Among the complete sets of equipment imported from Japan by our factory, there is a glass-lined reactor made by SHINKO PFAUDLER with volume of 35m ~ 3. This large glass-lined kettle mixer shaft, equipped with a double-ended mechanical seal, in a single test run, less than 80 hours of operation, it suddenly serious damage and a full set of scrap loss of 3323.10 US dollars. This article describes the circumstances of the accident and explores why. First, the mechanical seal structure 7 ~ B double-sided mechanical seal installed in the top of the glass-lined reactor sealed box, located in a set of double row tapered roller bearings in the lower part. In the shaft up to 6440mm stirrer shaft end bearing support, thanks to this unique bearing as a bearing point,