1.Type MD multi-stage abrasion-resisting centrifugal pump is introduce into、digest、imbibe advanced technics basic of my company research and make success. This product not only high efficiency、okay NPSHr、balanced run. Wet part material adopt alloy attrition-resisting material and moving ring and aperture connect part course Hotly spurts welds etc. special technics deal with. It is used for carbon and coal、mine、factory and transportation litmusless mine water of solid granule content not exceed 1.5%( dia. of granule less than 0.5MM) temperature not exceed 40℃ and other sewage.The standard according to MT 114—85《the standard of abrasion-resisting centrifugal pump for mine》
2.Modal Meaning:
3.Mainly part structure、work theory:
⑴.Mainly parts of pump: Outlet、Inlet、Diffuser、Diffuser of outlet、Diffuser of inlet、Connection section assembly、Impeller、Shaft、Shaft sleeve、wear ring、Balance ring、Balance place、End cover etc.; Rotor is made of impeller in shaft、balance place etc. part ,rotor have roll bearing underpin, bearing is used lubricate for axunge.
⑵. The pump is made of inlet、connect section assembly、diffuser、diffuser of outlet、outlet、end cover. Medium along shaft come into for single side ,axial force by balance place control poise when pump work.
⑶. ①Shaft seal: It is adopt soft packing seal, prevent inleakage air and leak plentiful medium, high pressure water inflow packing house soft packing used for seal water, prevent medium inflow shaft seal; Medium must seep gutta by gutta well when filling ,thereby decrease heat、abrase、expend power because of abrase, the pump efficiency should be fall because of medium damnify.
②Transmission: The pump through motor direct drive by stretch coupling; The rotating direction of pump is clockwise reviewing from the side of the motor.
③Bearing: It is adopt roll bearing, convenient to rotor can small adjust the place.
④Wear ring: Prevent high pressure water return enter the place in pump, it is can decrease cubage loss and instead.
⑤Balance place: Midst outlet and end cover, it used for balance axial force.
⑥Balance rong、balance sleeve: It rivet in outlet. They and balance compose equalizer.
⑦Shaft sleeve: In two packing house, it have protect shaft and rivet impeller effect, it can instead after abrase.
⑷.Operation elements: Shaft rotate increase energy in motor drive. so water arrive need head and need press by lead water part.
4.Capability parameter area:Head:50~500m3/h Capacity:40~1000m, dia. of granule not exceed 0.5MM.NPSHr: (allow suction vacuum high) 2.7~5m(7.5~5.2m)5. Type MD multi-stage abrasion-resisting centrifugal pump is easy attrite part list
