Tubular fluid flowing salt-free crystallization photo-thermal seawater desalination device and preparation method thereof

Abstract

The invention discloses a tubular fluid flowing salt-free crystallization photo-thermal seawater desalination device and a preparation method thereof. The tubular fluid flowing salt-free crystallization photo-thermal seawater desalination device comprises a photo-thermal interface water evaporation mechanism, a first water absorption mechanism and a first water drainage mechanism; the photo-thermal interface water evaporation mechanism comprises a light absorption shell layer and a water absorption core layer, and the light absorption shell layer covers the surface of the water absorption core layer; the first water absorption mechanism and the first drainage mechanism are connected with the water absorption core layer, so a water transmission channel is formed among the first water absorption mechanism, the water absorption core layer and the first drainage mechanism; the first water absorption mechanism is arranged in the first water storage device, and the first drainage mechanism is arranged in the second water storage device. According to the photo-thermal seawater desalination device provided by the invention, by utilizing liquid level potential energy, liquid is guided to flow and evaporated through the photo-thermal layer, and the liquid is discharged before being evaporated to saturation concentration, so the purpose of completely eradicating salt crystallization is achieved, and the durability of the device is improved.

Description

technical field [0001] The invention relates to a seawater desalination device, in particular to a tubular fluid flow salt-free crystal photothermal seawater desalination device and a preparation method thereof, belonging to the technical field of seawater desalination. Background technique [0002] With the development and utilization of nature by humans, while achieving scientific and technological progress, it has also caused serious damage to the environment. The problem of shortage of natural resources has become more and more prominent. In order to deal with the natural shortage of water, people have developed multiple water treatment technologies, such as : Electrodialysis, membrane evaporation, reverse osmosis, etc., but due to high construction costs and high maintenance costs, these technologies are difficult to be widely popularized in poor areas. Solar energy is by far the largest exploitable, renewable and sustainable resource that contributes to the earth. Prov...

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Problems solved by technology

[0008] In addition, the fluid flows from one side to the other through a simple planar structure, which effectively achieves the purpose of no crystallization and completely solves the problem of salt crystallization. However, it can be known from the Bernoulli equation that different pressures will cause different fluid flow rates. Therefore, the inlet and outlet of this type of device must be as wide as the light and heat end, which further causes the device to be bloated. In addition, because the fluid flowing on the flexible flat material will be affected by additional viscous force and local resistance, it is easy to form local uneven flow. Not conducive to water evaporation and salt discharge

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