Solar evaporator with hollow structure, and preparation method and application thereof

A solar evaporator and hollow technology, which is applied in the field of solar evaporator and its preparation, can solve the problems of difficult heat insulation materials, etc., and achieve the effect of stable product shape and structure, simple process, and favorable absorption
CN111170393AActive Publication Date: 2020-05-19SICHUAN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SICHUAN UNIV
Publication Date
2020-05-19

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Abstract

The invention belongs to the technical field of polymer composite materials, and particularly relates to a solar evaporator with a hollow structure and a preparation method and application thereof. According to the solar evaporator provided by the invention, the interior of the solar evaporator is of a hollow structure, the exterior of the solar evaporator is a shell layer of a two-layer structure, and the two-layer structure is composed of a porous polymer skeleton inner layer and an outer layer formed by a photo-thermal material. Under the irradiation of simulated sunlight (wherein one sunlight intensity is 1 KW / m<2>), the maximum value of the evaporation rate of the solar evaporator can reach 1.476 kg / m<2> / h, and the maximum value of the evaporation efficiency of the solar evaporator can reach 92.9%.
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Description

technical field

[0001] The invention belongs to the technical field of polymer composite materials, and in particular relates to a solar evaporator with a hollow structure and a preparation method and application thereof. Background technique

[0002] In recent years, the problem of lack of water resources has become more and more significant. By 2030, people's demand for fresh water will reach 6.9 trillion cubic meters per year. Although 70% of the earth's surface is covered by water, only 2.5% of the water is fresh water, and 87% of this fresh water is located in the polar ice caps and alpine glaciers, which are difficult for humans to use. Solar energy is a clean and renewable energy source. Using solar energy to heat water to generate water vapor, desalinate seawater or treat sewage can obtain clean water resources.

[0003] Solar-to-thermal energy conversion technology is a technology that directly harvests solar energy for energy storage and heat generation. So far, s...

Claims

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