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现代工业中,用泵来输送非牛顿粘性流体的情况日益增多,处理这类流体的种类、压力、温度等显著扩大。属于这一类流体的诸如:高分子物质的溶液、纤维酯、橡胶原液、油漆、淀粉浆、泥沙水等。密封这类流体,即使是使用条件比较简单,也会很困难。普通的机械密封用于密封这类流体时,会产生如下故障:①密封端面出现早期磨损;②弹簧的间隙被阻塞失去其功能;③动环的轴向移动受到O形圈的粘滞阻尼和沉淀物堵塞的妨碍;④由于浆
In modern industry, the pump is used to transport non-Newtonian viscous fluid more and more, and the type, pressure, temperature and the like of handling such fluid are greatly expanded. Such as fluid belonging to this category: polymer solution, fiber ester, rubber stock, paint, starch slurry, sediment water. Sealing such fluids can be difficult even if the conditions of use are relatively simple. When a normal mechanical seal is used to seal such fluids, the following faults can occur: ① Early wear on the seal face; ② The clearance of the spring is obstructed and loses its function; ③ The axial movement of the moving ring is dampened by the viscous damping of the O-ring and Obstruction of sediment blocking; ④ due to pulp