一、前言 在设法降低与修理机械密封有关的修理费用时,当然还要求延长使用寿命和减少修理次数。 70年代后,作者所在的叹坎()密封公司在产业界首先对静止型机械密封进行了实用化研究。静止型机械密封与过去使用的旋转型机械密封相比较,其寿命有较大幅度的延长,这个效果是人所共识的。在石油精炼、化学企业中,以过程泵为中心,很快地普遍采用了静止型机械密封。 另一方面,在处理可燃的和有毒的流体时,若发生泄漏,流体会原样不变地向大气排出,从安全和环保的观点来考虑,这是 I. INTRODUCTION In seeking to reduce the cost of repairs related to repairing mechanical seals, it is of course also required to extend the service life and reduce the number of repairs. After the 1970s, the author sankan () sealing company in the industry first of static mechanical seal for a practical study. Static mechanical seal with the past rotary mechanical seal compared to its life expectancy has been significantly extended, the effect is generally agreed. In the oil refining, chemical companies, the process pump as the center, quickly universal static seal. On the other hand, when dealing with flammable and toxic fluids, if a leak occurs, the fluid will be discharged to the atmosphere as it is, and from a safety and environmental point of view, this is