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针对炼化装置出现跑、冒、滴、漏等问题,目前国内普遍采用不停车带压密封技术加以解决。此项技术能够暂时对泄漏部位进行封堵密封,但带压密封剂的使用寿命短,超过6个月以上,密封失效,给石油化工厂的安全运营带来很大危险。目前封堵油类的带压密封剂,经常采用丁腈橡胶(NBR)为主体材料。由于丁腈橡胶是一种不饱和橡胶,耐热性比饱和橡胶要差很多,因此在使用过程中必须加入防老剂。结合带压堵漏密封剂应用的特点,本文重点研
Refining and refining unit for running, running, dripping, leakage and other issues, the current domestic use of non-stop pressure seal technology to be addressed. This technology can temporarily seal the leak site, but the service life of the pressure sealant is short, more than 6 months, the seal failure, to the petrochemical plant safe operation a great danger. Currently sealed with oil pressure sealant, often using nitrile rubber (NBR) as the main material. As nitrile rubber is an unsaturated rubber, heat resistance is much worse than saturated rubber, so the use of antioxidant must be added during use. Combined with the characteristics of the application of pressure sealing agent, this article focuses on research