Clean water pump

Abstract

The invention relates to a clean water pump that includes cover board, pump base, middle section, mouth circle, guide vane, guide vane cover, back section, back guide vane, supporting, tighten bolt, motor base, shaft connector, drive shaft, shaft cover A, shaft cover B, impeller, sealed circle, balance drum, balance drum cover, shaft cover C, feeding pressure cover, water proof circle, bearing box, bush, oil cup, and bearing water filling returning pipe. The material of pump base, middle section, mouth circle, guide vane, guide vane cover, back section, back guide vane, supporting, motor base, shaft connector, drive shaft, shaft cover A, shaft cover B, impeller, balance drum, balance drum cover, shaft cover C, feeding pressure cover, water proof circle, bearing box, bush, oil cup, and bearing water filling returning pipe is ABS engineering plastic. The advantage is that: it needs not to be machined, and it has high temperature endurable, high intensity, high steadily and high reliability, etc.

Description

technical field [0001] The invention relates to a clean water pump. Background technique [0002] At present, domestic water pump products such as LG, DL, ISL(G), Sn, SWL and other series pumps are all made of metal materials, and most of them are cast iron parts made of HT200, accounting for more than 90%. In the production of iron castings, due to the complex process and high requirements for qualified products (because the water pump parts must withstand a certain water pressure, no water leakage must be guaranteed), so the original casting waste rate and internal waste rate can reach 10%. Above, its loss and waste are great. Cast iron blanks need to be machined to assemble water pumps, and the losses and costs in machining are also relatively large. Generally, the scrap rate in machining accounts for more than 2%, and there are also losses of machining allowances, electricity costs, labor costs, and equipment maintenance. Expenses such as fees and depreciation fees acc...

AI Technical Summary

Problems solved by technology

The water pump parts are made of cast iron materials, and their weight is heavy, which brings difficulties and inconveniences to maintenance, installation and transportation.

In addition, there is rust phenomenon, which reduces the service life of the water pump, and it is easy to bite to death when it is shut down for a long time, and cannot be opened, which limits the scope of use of the water pump and cannot be used in places such as firefighting.

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