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一、引言将螺旋密封作为主密封件直接用于泵类轴封,现在已经在我国逐渐引起人们注日。1980年以来,我们在测试、调研的基础上,从流量平衡的观点出发,分析了螺旋密封的机理,提出了设计计算其密封能力的方法与此同时,我们联系东北输油管理局、秦皇岛输油管理处、辽河油田等处推广应用。这些单位在生产装置的61台泵上改装了螺旋密封,这就是丹东输油站150Y-150型外输原油泵1台、DG80-30×5型锅炉循环给水泵2台;大庆一铁岭输
First, the introduction of the helical seal as the main seal directly used for the pump shaft seal, and now has gradually caused people to note in our country. Since 1980, on the basis of testing and investigation, we have analyzed the mechanism of screw seal from the point of view of flow balance and put forward the method of designing and calculating its sealing ability. Meanwhile, we contact Northeast Oil Transportation Administration, Qinhuangdao Oil Transportation Management Department, Liaohe Oilfield promotion and application. These units in the production of 61 pumps on the modified screw seal, which is Dandong Oil Station 150Y-150 type of crude oil pump 1, DG80-30 × 5 boiler feed pump 2 sets; Tieling Daqing