Horizontal high pressure centrifugal pump assembly, disassembly sequence and matters needing attention

Horizontal high pressure centrifugal water pump assembly

horizontal high pressure centrifugal water pump assembly sequence in contrast to the disassembly sequence in general. Assembly quality directly affects the normal operation of the pump, and affect the service life of the pump and the performance parameters. When assembling, should pay attention to the following:

1, should protect the parts machining accuracy and surface roughness, are not allowed to have bruising, scratches etc. Phenomenon, as a seal with molybdenum disulfide to clean, fastening screws and bolts should be uniform force;

2, export runner and guide vane impeller inlet port to the neutral is in accordance with the axial size to ensure that all parts, the stand or fall of port to neutral directly affect the performance of the pump, we cannot adjust the size of the pump;

3, pump assembly has been completed, in before loading packing, turn the pump rotor by hand, check whether in the water pump rotor flexible, whether axial channeling momentum of specified requirements;

4, press into the packing after inspection qualified, and pay attention to the packing ring in the relative position of packing chamber.

horizontal high pressure centrifugal pump disassembly sequence

1, after unloading pump coupling, unscrew bearing gland bolts on, into the water and bearing body of the connecting nut, remove the front bearing body;

2, turn round nut and so on the shaft under unloading bearing inner ring, bearing gland and retaining ring;

3, use the middle pad pad, the poles nut, remove water, and water on the packing gland, packing ring, packing, etc. ;

4, in turn off before class impeller, flat key, guide vane, the impeller, the last stage is guide vane, discharge, the throttle, pressure-relief devices;

5 levels, in turn off at the end of the anti-missile leaf, at the end of the impeller, flat key, anti-missile leaf, after the impeller, throttling, pressure-relief devices, must pay attention to, the impeller, the direction of the guide vane and order;

6, unscrew the secondary water period, between the end cap nut, the spindle, end cap, bearing body parts after taken;

7, unscrew the tail cover, bearing body between the nut, remove end cap on the packing gland, packing ring, packing, etc. ;

8, unscrewed the rear axle bearing cover bolts, bearings, small round nut, bearing cover in turn off;

9, using sliding bearing of the pump, the disassembly sequence are basically the same, only when removing the bearing components is slightly different.

horizontal high pressure centrifugal pump disassembled into matters that should be paid attention to

1, parking in the parking order;

2, liquid in the pump housing ( Including the cooling water) Should be put off; When bearing components is thin oil lubrication, should put off lubricating oil;

3, down impede remove the attached pipeline, such as balance pipe, water pipe line and the lead;

4, the manufacturing precision of should strictly protect the removed parts from damage, remove the wear of rod at the same time should use the middle block padding, in order to avoid the middle check loose mouth sinking shaft bending.

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