Vertical multistage pump maintenance, vertical multistage centrifugal pump maintenance method

Vertical multistage pump IS adopted countries recommended energy-saving products IS type of pump hydraulic model, structure of vertical multistage multi stages. Screw the water clamping couplet, middle, water paragraphs. Each level in an impeller, a pump water. Axial force hydraulic balance method is used to solve, the residual axial force shaft bearing, ball with grease lubrication. Adopt soft packing or mechanical seal of the shaft sealing system. Vertical multistage centrifugal pump is applicable to industrial and urban water supply and drainage, pressurized water supply in high-rise buildings, fire pressurization, distant distance water, cold and hot water circulation pressurization in heating, bathrooms and boilers, water supply in air-conditioning and refrigeration system and supporting equipment, etc.

vertical multistage centrifugal pump maintenance method

1, vertical multistage centrifugal pump maintenance, motor control switch must be in 'off' position, and hang a warning card so as not to cause personal injury. The dismantling of multistage pump should be prepared at various parts with tag, so that installation can proceed smoothly; Multistage pump down to the small parts and fasteners use boxes, tags, indicate the premises; Multistage pump removed parts clean, coated with anti-rust oil, have paint surface rust, if any, should remove rust, paint again; Horizontal centrifugal multistage pump 'O' ring, stuffing, and corrosion of fasteners can't reuse, ready to spare parts.

2, vertical multistage water 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 ( Note on 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.

after 3, vertical multistage pump maintenance and replacement parts for assembly, see the bearing seat, bearing in the upper pump shaft together, sealed coupling and bearing cover installed and tightened up and down round nut, correction of pump shaft bending, will take the downward inserted into the pump body of the bearing, bearing, wrapped in the middle seat, again just the impeller and the intercellular space of pump casing, impeller and shaft sleeve and the impeller and cap together with phenolic daub on the pump shaft, such as phenolic daub cured completely, before the pump cover installed, after the assembly, on the coupling turn the pump shaft by hand is normal. Such as replacing the bearing and the pump shaft, water pump shaft top down the first round nut and coupling, loosen up and down bearing cover 12 screws, hit the bearing sit up.

4, when the vertical multistage centrifugal pump maintenance is divided into two periods, one is running, when one is discontinued.

       ( 1) Multistage water pump run-time multi-stage leakage of pump packing condition; Multistage pump lubrication water pressure; Multistage pump oil and bearing temperature; Ready to run log, such as horizontal centrifugal multistage pump pump defective detailed records.

       ( 2) Multistage pump outage period. Replace the old vertical multistage centrifugal pump packing; Replace the vertical multistage centrifugal pump lube oil ( Water pump bearing box) ; Monthly flush sprocket bearing vertical multistage centrifugal pump water, about 2 minutes; Turn the pump rotor at the same time; Check embellish horizontal centrifugal multistage pump water system, and check whether the fasteners loose.

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