Reverse osmosis seawater desalination machine put in deep sea

Abstract

The invention discloses a reverse osmosis seawater desalination machine put in deep sea, which comprises a freshwater collection tank, multiple reverse osmosis membrane pipes, a filter screen, a protection cage, a compression-resistant cover, multiple springs and an anti-toppling mechanism, wherein the reverse osmosis membrane pipes are mounted at the top of the freshwater collection tank, the filter screen surrounds the reverse osmosis membrane pipes, and the filter screen is externally covered with the protection cage and the compression-resistant cover. Since the deep seawater is filtered by the filter screen and then reaches the membrane surfaces of the reverse osmosis membrane pipes, the water molecules in seawater penetrate through the reverse osmosis membrane under the effect of the potential energy of seawater and reach the outer wall surface of a hollow circular pipe; the freshwater enters an inner cavity of the hollow circular pipe through micropores on the wall surface of the hollow circular pipe and flows into the freshwater collection tank under the gravity effect; finally, the freshwater is pumped onto the land through a freshwater outlet pipeline while a certain water level in the freshwater collection tank is maintained. The machine disclosed by the invention has the advantages of low energy consumption, high freshwater value, simple and compact equipment structure, good overall performance, environmental friendliness and the like, is suitable for the complicated-environment deep sea, and can be widely applied to the field of seawater desalination.

Description

technical field [0001] The invention belongs to the technical field of seawater desalination, in particular to a reverse osmosis seawater desalination machine placed in deep sea. Background technique [0002] At present, seawater desalination methods are mainly thermal methods (multi-effect evaporation, multi-stage flash evaporation, pressure steam distillation) and membrane methods (reverse osmosis, electrodialysis). Since thermal desalination is a phase change process, generally heating is required, and the energy consumption is relatively high, while the process of reverse osmosis is simple and the energy consumption is low, so reverse osmosis has been developed rapidly and widely used in recent years. Although the application of reverse osmosis devices has gradually matured, there are still several problems in the following aspects: First, the influent water of reverse osmosis devices is taken from seawater on the surface of the ocean, and the surface seawater in major s...

AI Technical Summary

Problems solved by technology

However, if the deep seawater is directly pumped as the feed seawater for the reverse osmosis device on land, not only the energy consumption of the reverse osmosis device will increase significantly, but also the problem of concentrated brine discharge will also be faced

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