An electromagnetic energy seawater desalination device and method

Abstract

An electromagnetic energy seawater desalination device relates to the fields of seawater desalination and energy saving and emission reduction. The electromagnetic energy seawater desalination device includes a capillary medium and a condensation device; the capillary medium communicates with seawater, and its surface layer is provided with nano-magnetic-based materials; the nano-magnetic-based materials are placed In the alternating magnetic field, and cut the alternating magnetic field to generate heat, the heat acts on the seawater between the pores of the nano-magnetic-based material to generate steam, and the steam is condensed into fresh water through the condensing device. The invention also discloses a seawater desalination method based on the electromagnetic energy seawater desalination device. The invention realizes the rapid heating of the thin seawater through the electromagnetic heat generation technology, avoids sensible heat loss, and improves the energy conversion rate in the seawater desalination process.

Description

technical field [0001] The invention relates to the fields of seawater desalination and energy saving and emission reduction, in particular to an electromagnetic energy seawater desalination device and method. Background technique [0002] The essence of seawater desalination is to separate the salt and water in seawater by doing work. The thermal seawater desalination technology usually boils seawater by heating to generate steam, and the steam flows into the condenser to condense into fresh water. The desalination process consumes a lot of energy. How to reduce the energy consumption in this process is a problem that must be considered in seawater desalination technology. [0003] In a typical thermal technology, seawater evaporation occurs in the same chamber, and the temperature of the steam is the same as that of the concentrated brine, which causes a large amount of sensible heat to be carried during the discharge of the concentrated brine, resulting in sensible heat l...

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Problems solved by technology

[0006] However, although scientists have tried various methods, it is still difficult to make further breakthroughs

The most critical reasons are as follows: (1) There is a heat dissipation loss of nearly 8% in the heat transfer process. The root cause of this loss is that the heating process has not achieved true thermal focus, and there is a heat transfer loss. (2) The radiation heat is actually used for heating The ratio of seawater is small, and the material has high heat reflectivity

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