Multi-stage pump overhaul If conditions permit, it is best to look at the manufacturer's maintenance manual and assembly drawings to see what special places need attention. Search Keyword: More Pump Technical Articles Copper Baler,Metal Scrap Baler Machine,Mobile Scrap Metal Baler,Portable Scrap Metal Balers Jiangsu Dalongkai Technology Co., Ltd. , https://www.dlkscrapbaler.com
First, when disintegration:
1, demolition thrust bearings should be used before measuring balance disc gap, and make a record;
2, multi-stage pump disassembly must be the original order of the parts do a good job mark, so as not to chaos when loading, wrong;
3, not easy to mark the small pieces (such as keys) with the same level of the impeller or guide vane (middle) and so on together.
4, disintegration can be intuitive to see if there are abnormal parts, such as with loose and so on.
Second, parts overhaul:
1, visual inspection of the surface of each part is normal, the collocation surface must be no scratches scratch, no rust, etc .;
2, the amount of measured with the key parts of the tolerance is qualified;
3, the amount of impeller seal ring, the shell seal ring, the guide vane seal ring, interstage sleeve and other clearances are within the tolerance range, excessive wear and tear need to be replaced;
4, check the bearings are intact;
5, all seals, seals are the best new ones;
Third, back to
1, the rotor first installed, re-balancing test;
2, according to disassemble the reverse order of the pump back to the various parts, pay attention again when the volume of the seal ring at the gap value, to ensure correct;
3, the balance plate should be measured before measuring the total amount of the rotor;
4, equipped with a balance plate, measuring the rotor half the amount of string.
5, with the total assembly on the assembly map of the total amount of the serial and semi-serial control, should be basically in line with the drawings requirements. Under normal circumstances, the amount of semi-series is about half the total amount of the string.
6, evenly fasten all the main bolts, pay attention to the angle;
7, suck a dial indicator on the shaft, rotate the shaft to balance the plate to hit the table, the tolerance according to the drawing requirement, generally can not surpass 0.06;
8, thrust bearing installed thrust bearing should pay attention to adjust the balance of the gap should be used before the adjustment ring bearing balance plate clearance adjusted to the drawing requirements.