Vertical multistage centrifugal pump maintenance, vertical multistage centrifugal pump maintenance method

Vertical multistage centrifugal pump is based on the constant pressure water supply in high-rise building and fire professional of the practical need of the development of a new generation of feed products, using a hydraulic model of domestic vertical multistage pump, with high efficiency, stable performance, low noise, long service life, appearance beautiful, covers an area of less, convenient repair, light weight and other advantages.

method of vertical multistage centrifugal pump maintenance note:

1, vertical multistage centrifugal pump maintenance, motor control switch must be in the 'closed' position, and hang a warning card so as not to cause personal injury. When in multistage water pump apart in various parts cooperation symbols, so that the installation can proceed smoothly; Multistage pump down to the small parts and fasteners with box installed, symbols, indicate the premises; Multistage water pump removed parts, cleaning, clean, coated with anti-rust oil, have paint surface rust, if any, should remove rust, from the paint; Horizontal centrifugal multistage pump 'O' ring, stuffing, and corrosion of fasteners can't reuse, ready to spare parts. 2, vertical multistage pump maintenance, the first from the pump on the tank will be removed, remove the motor and the stand, break down the pump shell, off the collar and impeller ( Refer to the pump shaft coating) Loosen the bearing sit 6 hex bolt, then the article is the pump shaft and bearing parts can be pulled together for maintenance. 3, after vertical multistage centrifugal pump overhaul and replacement parts from the beginning when installation, see the bearing seat, bearing in the upper pump shaft, sealed coupling and bearing cover installed and tightened up and down round nut, correction of pump shaft bending, will take the downward into the pump body of the bearing, the bearing seat again in a center seat, adjustable impeller and the intercellular space of the pump shell, the impeller and shaft sleeve and impeller with cap touch with phenolic daub on the pump shaft, such as thoroughly cured phenolic daub, before the pump cover installed, once installed, rolling on coupling pump shaft by hand is normal. Such as replacement of bearing and the pump shaft, pump shaft top down the first round nut and coupling, loosen up and down bearing cover 12 screws, bearing sit up play. 4, when the vertical multistage centrifugal pump maintenance is divided into two periods, one is running, when one is discontinued. ( 1) Multistage pump running, vertical multistage pump packing leakage; Multistage pump smooth water pressure; Multistage pump oil level and smooth bearing temperature; Ready to run log, such as horizontal centrifugal multistage pump pump there is something wrong with detailed records. ( 2) Multistage pump outage period. Replace the old vertical multistage centrifugal pump packing; Replace smooth vertical multistage centrifugal pump oil ( Water pump bearing box) ; Monthly water flushing sprocket bearing vertical multistage centrifugal pump water, time about 2 minutes; Scroll pump rotor together; Check embellish horizontal centrifugal multistage pump water system, and check whether the fasteners loose.
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