Multistage centrifugal pump maintenance matters should be paid attention to when r

multistage pump maintenance can do, if a good idea, to the manufacturer's maintenance manuals and total assembly drawing, see which place need to pay special attention to. :
in the first place, dissolution, thrust bearing before dissolution, should be a dial indicator is used to measure the balance disc space, and make records; When the collapse of the multistage pump, in accordance with the original assembly of parts must be marked in order to do this time when chaos, wrong; , no small, convenient tag ( Such as keys) Can be used or guide vane of the impeller C) The same level, so put together. , can dissolve intuitive feel whether there are abnormal part, such as with loose. Fix:
second, parts and components on the surface of the visual is normal, knock against contact surfaces must be free of scratches, no corrosion, etc. ; , with the main error measurement of the site's qualification; Ring, impeller sealing ring, shell, guide vane ring, class etc. The difference between the set of value within the tolerance range, wear too much, to be replaced the need; , check the bearing in good condition; , all the seals, gaskets is a new one of the best;
third, loading: back, first install rotor, balance test again; Reverse part, according to dismantle the pump to install, attention again to load in the seal gap value amount, in order to ensure the correct; , load balance disc rotor should be measured before, total amount of the string; Installation, balance hour, the amount of half a bunch of measuring rotor. Assembly drawings, and the manufacturer requirements and control the number of half of the total series, should comply with the basic requirements of the drawings. Under normal circumstances, strung around half of about half of the total amount of the string. Good, unified all major bolt, Angle should be paid attention to; , dial indicator on the shaft, in order to balance the drive shaft play table, by the drawings, shall not exceed. Tolerance; Adjust the balance should be paid attention to, the installation of thrust bearing of disk space, should be used to adjust the front bearing plate gap adjusting ring will balance the drawings.

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