the overhaul project of hubei province hanchuan powerplant bcp-凯发k8娱乐备用网址-首页

one：disassembly and failure analysis before overhaul：

1.      after disassemble，the motor inspection result as follows：

①     stator winding was burned seriously，the insulation resistance is 0.

②     pump side and motor cover side guide bearing movable pad，wearing material with baseboard already fall off，and with seriously deformation。

③     the wearing material on the thrust plate

④     the wearing material on the anti-thrust sealing ring already fall off and deformation

⑤     thrust bearing axial clearance is 1.5mm

2.      failure analysis：

introduced by hanchuan power plant，due to the leakage of suction nozzle，hot water went into the motor and led to the fault and damage。

two：motor overhaul content：

   according to the agreement，the overhaul content as following：

1.      produced a new stator with same dimensions，same performance of original stator

a）  winding is use polyethylene winding wire which specially for wet stator motor。

b）threading is use no-axial dirction less wearing method，decrease the probability of damage winding wire。

c）  use import material to produce lead sealing joint。

2.      clean the part of bcp motor

3.      change the pump side and motor cover side guide bearing movable pad 。

4.      change the thrust plate which made by import material

5.      change the anti-thrust sealing ring which made by import material

6.      repair the side guide bearing sleeve

7.      repair the thrust pad

8.      change all the sealing parts。