Three screw pump removal steps

Three screw pump removal steps:

1, the screw pump is separated from the motor, emptying the medium (preventing the motor, toxic media injury);

2, disassemble the screw pump discharge body;

3, disassemble the screw pump stator, if necessary, according to the pump shaft steering shaft to assist;

4, disassemble the rotor and the intermediate shaft;

5, disassemble the drive shaft and shaft seal;

6, long-term use of the screw pump, to do anti-rust treatment, the method is to use anti-rust grease to apply non-painted metal surface, including the shaft surface, the filling shell cavity, etc., and lubrication.

When assembling the screw pump, note the following:

1. The screw pump parts should be carefully cleaned and inspected during assembly, and the damaged parts should be replaced;

2. When assembling the transmission shaft 20,000 joints, check the seals for damage and fill the cavity with grease;

3, the correct installation of the bearing makes the shaft flexible, no jamming phenomenon.

4, shaft seal installation: when the stuffing box is installed, the packing gland pressing bolt position should be in the housing installation window, which is convenient for the wrench to adjust the bolt;

5, the timing of the discharge body pressure tightening, the nut should be tightened evenly;

6, mechanical seal installation should be careful, the friction end face should be cleaned and coated with grease;

7. When installing the stator, apply the lubricant to the rotor, and the surface of the stator cavity is beneficial to the stator installation;

8. When installing and assembling, the coupling installation deviation: △Y≤0.2mm, △α≤30'.

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