Method for extracting fresh water of islands by virtue of titanium alloy welding generator of mouse-cage water-cooled motor

Abstract

The invention belongs to methods of treating fresh water of islands by virtue of a generator and discloses a method for extracting fresh water of islands by virtue of a titanium alloy welding generator of a mouse-cage water-cooled motor. The method comprises a seawater pretreatment tank, a pretreatment seawater suction pipe, a starting suction pipe, a high-pressure primer pump, a pipeline tee joint, a reverse osmosis membrane and a welding pressure supercharger pump. As an improvement, the steps of assembling a mouse-cage IV-form water-cooled motor, connecting a welding joint pipe and assembling key parts are as follows: (1) assembling the mouse-cage IV-form water-cooled motor; (2) connecting the welding joint pipe; and (3) assembling the key parts: (a) mounting a front cover shaft spacer bush; (2) mounting a tail-stage bearing outer ring. According to the method, a welding line connecting structure is adopted, so that the high pressure can be resisted, and the leakage is avoided; and particularly, the welding pressure supercharger pump is additionally arranged, and a spline transmission shaft is utilized for connecting a primary pump impeller, a middle front impeller, a middle rear impeller and a tail-stage pump impeller in series to form a four-stage pressurization mechanism capable of realizing synchronous rotary pressurization, so that the structure is compact, and furthermore, the energy-saving effect is obvious.

Description

technical field [0001] The invention belongs to a method for extracting fresh water from islands and reefs by using a generator, and in particular relates to a method for extracting fresh water from islands and reefs by using a squirrel cage water-cooled motor titanium alloy welding generator and adding a pressure exchange hoist pump to a reverse osmosis seawater desalination system. Background technique [0002] With the advancement of science and technology, the population is increasing day by day, and people's desire to develop into the ocean is becoming stronger and stronger. Seawater desalination treatment is becoming more and more popular, and the energy consumption cost of seawater desalination has received special attention. Early seawater desalination used distillation, such as multi-stage flash technology, with an energy consumption of 9.0kWh / m3, and was usually only built in areas with low energy prices, such as Middle East oil countries, or areas where waste heat ...

AI Technical Summary

Problems solved by technology

In today's world, there are mainly a series of mechanical moving parts and electrical switching mechanisms in the pressure exchangers for liquid energy recovery and utilization in the field of seawater desalination. The high maintenance rate will eventually affect the production cost.

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