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Portable solar high photo-thermal conversion seawater desalination distiller and method

A technology of light-to-heat conversion and solar energy, applied in chemical instruments and methods, seawater treatment, general water supply conservation, etc., can solve the problems of increasing light scattering rate, reducing effective illumination area, and high density, so as to improve evaporation temperature and efficiency, Effect of improving optical utilization and reducing heat loss

Inactive Publication Date: 2022-07-12
南京昱浩渲新能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This is because portable equipment not only needs to consider solar energy conversion efficiency, but also needs to realize the economy and portability of the equipment, including lightweight, foldable and easy to assemble performances, so it is impossible to copy the structure and materials of large-scale solar desalination equipment
In particular, the light-transmitting condensation glass cover parts in large-scale solar desalination equipment are expensive, dense, and cannot be folded, so they are not suitable for use as condensation cover parts for portable equipment; there are also heat-insulating foam parts in the equipment. In small portable devices, the effective illumination area will be reduced, and it has the disadvantages of easy aging, corrosion and inability to fold
However, the research on traditional portable stills has given up effective heat insulation components, which has brought a non-negligible system-environmental heat loss; Hydrophobic, causing water droplets to form mist droplets on the condensing surface, greatly increasing the light scattering rate, thereby reducing the utilization rate of sunlight

Method used

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  • Portable solar high photo-thermal conversion seawater desalination distiller and method
  • Portable solar high photo-thermal conversion seawater desalination distiller and method

Examples

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Embodiment 1

[0023] The first embodiment of the present application provides a portable solar energy high photothermal conversion seawater desalination distiller, which heats the thin liquid layer at the interface and evaporates it, and uses the water absorbing core in the annular water channel to continuously draw seawater to the heating interface, The photothermal evaporation process is continuously carried out, which greatly reduces the heat loss in the evaporation process, thereby improving the evaporation temperature and heat utilization rate; the condensation structure with surface hydrophilic modification can effectively reduce the effect of mist droplets on the cover on sunlight. Scattering, thereby improving the utilization rate of solar energy optics, thereby improving the efficiency of solar seawater desalination.

[0024] The portable solar energy high photothermal conversion seawater desalination distiller includes a condensation structure 1, a photothermal conversion material ...

Embodiment 2

[0031] An example of the operation of a portable solar high photothermal conversion seawater desalination distiller for solar photothermal conversion seawater desalination is as follows: a portable distiller device with a diameter of 30 cm, in a sunny autumn day in a coastal city in southern China, the ambient temperature is 25-30 °C, etc. Under the condition that the effective standard sunlight hours is 5.7 hours, the water production of the distiller in 24 hours is 225 mL, that is, 3.8 kg / (m 2 day), its solar desalination efficiency is 45%.

[0032] The present invention adopts the interface evaporation structure, by arranging the light-absorbing material at the interface of seawater and air, heating the thin liquid layer at the interface and making it evaporate, using the heat-insulating layer at the bottom of the light-absorbing material to cooperate with the water-absorbing core, on the one hand, the seawater is continuously absorbed To the heating interface, the photothe...

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Abstract

The invention provides a portable solar high photo-thermal conversion seawater desalination distiller and method, and relates to the field of solar photo-thermal conversion seawater desalination, the distiller comprises a condensation structure, a photo-thermal conversion material, an annular water guide channel, a thermal insulation layer, a seawater communication layer, a fresh water collection tank, a drainage hole, a drainage guide pipe and a water storage cavity; the method has the beneficial effects that an evaporation film modified by a transition metal sulfide material with metalloid properties, such as metal phase tungsten sulfide and the like, with ultrahigh photo-thermal conversion rate and ultra-wide spectrum absorption can be used, so that interface seawater is quickly converted into a gas phase and condensed, and the water desalination efficiency is greatly improved. Meanwhile, a condensation structure with a hydrophilic modified inner surface is adopted, so that the scattering of condensed vaporific liquid drops to sunlight can be effectively reduced, the solar optical utilization rate is improved, and the solar seawater desalination efficiency is improved.

Description

technical field [0001] The invention relates to the fields of seawater desalination, photothermal conversion and the like, and relates to a seawater desalination portable distiller and method for solar energy with high photothermal conversion rate. Background technique [0002] Seawater desalination is an effective method to solve the global shortage of freshwater and the shortage of freshwater supply in islands and coastal areas. Traditional seawater desalination plants mainly use reverse osmosis and low-temperature flash evaporation, which are driven by non-renewable energy such as electricity and coal, and have the characteristics of large scale, large land occupation, and huge capital requirements, which are not suitable for some application scenarios. Especially in the fields of marine emergency rescue, ship disaster preparedness, etc.; islands, offshore platforms, tidal flats and remote towns and other areas. This part of the application environment and region require...

Claims

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Application Information

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IPC IPC(8): C02F1/14C02F103/08
CPCC02F1/14C02F1/043C02F2103/08C02F2201/002Y02A20/212
Inventor 于浩轩解玲彬刘世杰李恒旭刘明鸣殷葳楠何宇豪
Owner 南京昱浩渲新能源科技有限公司