Ocean energy direct drive sea water desalting device

Abstract

The invention provides an ocean energy direct drive sea water desalting device which comprises a sea water pre-filtering device, an ocean energy sampling device, a sea water energy storage device, a reverse osmosis device and a controller, wherein the sea water pre-filtering device, the ocean energy sampling device, the sea water energy storage device and the reverse osmosis device are sequentially connected through pipelines; and the controller is connected with the sea water energy storage device. The sea water pre-filtering device performs filtering pretreatment to sea water, so as to filter impurities, the filtered sea water becomes high-pressure sea water through the ocean energy sampling device, the high-pressure sea water enters the sea water energy storage device through pipelines to stabilize the pressure of high-pressure sea water, and then the high-pressure sea water enters the reverse osmosis device to desalinate the sea water.

Description

Technical field: [0001] The invention relates to the technical field of seawater desalination, in particular to an ocean energy direct-drive seawater desalination device for seawater desalination by utilizing renewable ocean energy. Background technique: [0002] Seawater desalination is the use of seawater desalination to produce fresh water. At present, seawater desalination itself is a relatively mature technology. The seawater desalination methods currently used are multi-stage flash evaporation, reverse osmosis, multi-effect evaporation and hydration, among which reverse osmosis is used. Membrane reverse osmosis has gradually become the most widely used method due to its advantages of simple equipment, easy maintenance, energy saving and equipment modularization. Even so, the current cost of producing fresh water using the ocean energy reverse osmosis method is still relatively high. One of the main reasons is that the current ocean energy reverse osmosis seawater desal...

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Problems solved by technology

Even so, the current cost of producing fresh water using the ocean energy reverse osmosis method is still relatively high. One of the main reasons is that the current ocean energy reverse osmosis seawater desalination devices generally first use ocean energy to generate electricity, and then use electric energy to drive high-pressure pumps. High-pressure seawater, and finally the high-pressure seawater is sent to the reverse osmosis device for desalination. In this process, the ocean energy is first converted into electrical energy, and then the electrical energy is converted into mechanical energy to produce high-pressure seawater. It has gone through multiple energy conversion processes, and it is inevitable It causes a lot of waste of energy, low energy utilization rate, and high cost of fresh water production

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