Fresh water generator with copper alloy disc type trapezoidal magnet generator and screw joints

Abstract

The invention belongs to special generators for sea water desalination and relates to a fresh water generator with a copper alloy disc type trapezoidal magnet generator and screw joints. For improvement, a pressurizing internal screw joint is hermetically and fixedly connected with an external screw of the lower end of a conversion high-pressure pipe, a vertical screw constant-direction inverter is serially connected between an inlet of a low-pressure lift pump and a low-pressure suction pipe, a horizontal screw constant-direction inverter is serially connected between an inlet of a high-pressure make-up pump and a water replenishing suction pipe, a screw pressure exchange lift pump consists of a pressure lift screw pump portion and a screw pressure switch portion, and the pressure lift screw pump is driven by the disc type trapezoidal magnet generator; a permanent magnet section of the disc type trapezoidal magnet generator is in a shape of an isosceles trapezoid, an axial magnetic field is increased gradually from inside to outside, saturation at the inner periphery of the magnetic field is avoided, and permanent magnet utilization efficiency is increased. In addition, since a conical air gap is formed among a stator core, a rotor core and a permanent magnet, effective area of the air gap is increased, and the permanent magnet utilization efficiency is further increased.

Description

technical field [0001] The invention belongs to a special generator for desalination of seawater, in particular to a freshwater generator for a copper alloy disc-type trapezoidal magneto screw joint with a pressure exchange hoist pump added in 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 was available. In the 1970s, reverse osmosis seawater desalination technology was put into use...

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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