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我们根据水泵结构,因陋就简,利用检修将几种水泵的填料密封改为机械密封,方法简便,效果良好。现介绍如下: 1.将填料箱镗孔至一定尺寸,确保动环及其部件的安装和运转;制作一静环端盖,代替填料压盖。如6BA水泵,使用φ40单端面非平衡型内装式机械密封(图1)。2.将填料箱镗孔至一定尺寸,确保静环的安装,并在面侧轴封孔的端面钻一小孔,装入静环防转销。如4BA水泵,使用φ30单端面非平衡型外装式机械密封(图2)。
According to the structure of the pump, due to its simplicity, the use of overhaul will be several pump filling seal into a mechanical seal, the method is simple and effective. Now introduced as follows: 1. Boring box to a certain size to ensure the installation and operation of the moving ring and its components; making a static ring cover, instead of packing gland. Such as 6BA pump, using φ40 single-ended unbalanced type built-in mechanical seal (Figure 1). 2. Boring box to a certain size, to ensure the installation of static ring, and the surface side of the shaft seal bore a small hole, into the static anti-rotation pin. Such as 4BA pump, using φ30 single-ended unbalanced type mechanical seal (Figure 2).