Pre main pump leakage of the main performance and treatment measures

First, the main performance of the pre-pump leak 1, a slight mechanical seal surface corrosion. 2, mechanical seal static and dynamic ring contact surface wear phenomenon. 3, cooling shell and pump surface erosion caused by traces. Upper and lower casing close to the mechanical seals appear erosion marks. Second, the main treatment measures 1, cooling the shell bed with 1.5mm PET stretch film, (PET name polyethylene terephthalate linear saturated polyester resin, which has good properties such as: heat resistance , Chemical resistance, toughness, electrical insulation, safety, etc.) 2, the use of grinding and stone re-repair, so that the unevenness of the upper and lower casing to be reduced as much as possible. 3, cooling the casing to tighten the bolt to add copper gaskets, because copper has good ductility and malleability, can effectively reduce the leakage due to unreasonable bolt design