潜水电泵电缆引入密封装置的分析与改进设计

Analysis and Improved Design of the Cable Entry Sealed Equipment of Submersible Pump

根据实际工作经验,在系统地分析潜水电泵电缆引入密封装置使用寿命短的影响因素基础上,对其作了结构改进。主要采取了在传统密封装置结构上依次增加涨圈、压紧垫圈、次级压紧螺栓、O形橡胶密封圈、紧固件和次级接线盒等措施,共同组成二道面与面接触的密封系统。改进后的潜水电泵不仅在潜水深度上大大超过标称深度达5m以上,而且延长了使用寿命。

According to practical experience, the paper systematically analyses some factors affecting the life of the cable entry sealed device, and then makes some construal improvements. In order to compose a containment system with two interfaces, it adopts measures such as adding piston rings, packing washers, subordinate hold-down bolts, ＂O＂ pattern rubber packing rings, fastener and subordinate terminal boxes. The improved submersible pump not only easily outnumbered the nominal depth by 5 m, but also extended the service life.