SZ-type water ring vacuum pump test and acceptance

1 Preparation before the test 1.1 Check all the bolts loose, zero, parts, instruments, auxiliary equipment is complete.
1.2 Check the lubrication of the bearing is good, the circulation of water system is smooth.
1.3 Coach should be no blocking or unevenness of the phenomenon.
The maximum diameter of the outer diameter of the coupling: 71 ~ 106, the gap between the end face: 3, the radial displacement: <0.04, axial tilt: <0.2 / 1000
Coupling the largest diameter of the outer circle: 130 ~ 190, End clearance: 4, Radial displacement: <0.05, Axial tilt: <0.2 / 1000
The maximum diameter of the coupling: 224 ~ 315, the gap between the end face: 5, the radial displacement: <0.05, the axial tilt: <0.2 / 1000
Coupling the largest diameter of the outer circle: 315 ~ 400, the end gap: 5, the radial displacement: <0.08, axial tilt: <0.2 / 1000
2 test drive two hours should meet the following requirements:
a. Smooth operation without noise;
b. Shaft seal leakage meet the requirements, ancillary piping should run, run, drip, leak;
c. Bearing temperature is not higher than 75 ℃;
d. Bearing amplitude should meet the requirements;
e. Vacuum degree of nameplate value;
f. Current stability, and not more than the rated position.
3 Acceptance inspection quality in line with the requirements of this procedure, maintenance records complete, accurate, normal test, according to the provisions of the acceptance procedures, delivery of production.

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