Solar water purifier based on interface solar photo-thermal conversion

Abstract

The invention discloses a solar water purifier based on interface solar photo-thermal conversion, which comprises a solar interface evaporator and a distilled water collector, the solar interface evaporator comprises an open water storage tray and a light absorber with high photo-thermal conversion efficiency, the light absorber is of a double-layer structure and is formed by compounding an upper-layer photo-thermal conversion material and a lower-layer thermal insulation material, and a dust-free cloth is arranged between the upper-layer material and the lower-layer material. During use, it needs to be guaranteed that the dust-free cloth can continuously make contact with the liquid level in a water storage disc, so that it is guaranteed that enough water is conveyed to the surface of thelight absorber to guarantee continuous evaporation. Only solar energy is used as driving energy, other energy sources are not consumed, meanwhile, the problem of replacement of a filter element of aconventional water purifier is avoided, and the device has the advantages of being portable, low in price, high in water purification efficiency and the like and can be stably applied to seawater desalination, sewage treatment and outdoor drinking water purification for a long time.

Description

technical field

[0001] The invention belongs to the technical field of solar photothermal utilization and water purification, and in particular relates to a solar water purifier based on interface solar photothermal conversion. Background technique

[0002] With the rapid development of the economy and society and the increasing environmental pollution, the human demand for clean water resources is increasing. At present, the water purification products on the market mainly use filtration to separate and obtain pure water. The filtration membranes are mainly divided into: ion exchange membranes, RO reverse osmosis membranes and ultrafiltration membranes. The filter element with the filter membrane as the core usually needs to be replaced after a period of use (3-24 months). The water purifier of this filtering method is not only expensive for the filter element consumables, but also needs external electric energy to assist the work. Therefore, be badly in need of a kind of...

Examples

Embodiment 1

[0046] Example 1: Nano-CuS sponge is used as light-to-heat conversion material, and distilled water collector is made of ordinary glass

[0047] Put the nano-copper sulfide sponge (10*10*0.3cm) on the surface of foamed polyethylene wrapped in a dust-free cloth to form a light absorber, then put it into the water storage tray, use ordinary glass to form a distilled water collector, and seal the inclined cover . Simulated solar light irradiated on the slope cover and worked continuously for 4 hours. A large amount of mist composed of fine water vapor appeared on the glass wall of the collector, and the transmittance of sunlight was greatly reduced. The output was calculated based on the purified water collected at the water outlet. rate, the yield of desalinated seawater is 0.91kg / m 2 / h, the ion concentration of the fresh water produced meets the drinking water standard of the World Health Organization (WHO), and the light-to-heat conversion efficiency reaches 61%.

Embodiment 2

[0048] Embodiment 2: The CuS foam of the present invention is used as light-to-heat conversion material, and the distilled water collector is made of ordinary glass

[0049] Place CuS foam (10*10*0.3cm) on the surface of foamed polyethylene wrapped in a dust-free cloth to form a light absorber, then put it into a water storage tray, use ordinary glass to form a distilled water collector, and seal the slope cover. When the simulated solar light is irradiated on the inclined cover plate and works continuously for 4 hours, a large amount of mist composed of fine water vapor will appear on the glass wall of the collector, and the transmittance of sunlight will be greatly reduced. The yield of desalinated seawater is 0.97kg / m 2 / h, the ion concentration of the fresh water produced meets the WHO drinking water standard, and the light-to-heat conversion efficiency reaches 65%.

Embodiment 3

[0050] Example 3: Nano-CuS sponge is used as light-to-heat conversion material, with SiO 2 AR-coated glass forms the distilled water collector

[0051] Place the nano-CuS sponge (10*10*0.3cm) on the surface of foamed polyethylene wrapped in a dust-free cloth to form a light absorber, then put it into the water storage tray, and use SiO 2 AR-coated glass forms the distilled water collector and seals the beveled cover. The simulated solar light shines on the inclined cover plate and works continuously for 4 hours, and there is no obvious fog on the glass wall of the collector. The yield of desalinated seawater is 1.15kg / m 2 / h, the ion concentration of the fresh water produced meets the WHO drinking water standard, and the light-to-heat conversion efficiency reaches 78%.

technical field

[0001] The invention belongs to the technical field of solar photothermal utilization and water purification, and in particular relates to a solar water purifier based on interface solar photothermal conversion. Background technique

[0002] With the rapid development of the economy and society and the increasing environmental pollution, the human demand for clean water resources is increasing. At present, the water purification products on the market mainly use filtration to separate and obtain pure water. The filtration membranes are mainly divided into: ion exchange membranes, RO reverse osmosis membranes and ultrafiltration membranes. The filter element with the filter membrane as the core usually needs to be replaced after a period of use (3-24 months). The water purifier of this filtering method is not only expensive for the filter element consumables, but also needs external electric energy to assist the work. Therefore, be badly in need of a kind of...

Examples

Embodiment 1

[0046] Example 1: Nano-CuS sponge is used as light-to-heat conversion material, and distilled water collector is made of ordinary glass

[0047] Put the nano-copper sulfide sponge (10*10*0.3cm) on the surface of foamed polyethylene wrapped in a dust-free cloth to form a light absorber, then put it into the water storage tray, use ordinary glass to form a distilled water collector, and seal the inclined cover . Simulated solar light irradiated on the slope cover and worked continuously for 4 hours. A large amount of mist composed of fine water vapor appeared on the glass wall of the collector, and the transmittance of sunlight was greatly reduced. The output was calculated based on the purified water collected at the water outlet. rate, the yield of desalinated seawater is 0.91kg / m 2 / h, the ion concentration of the fresh water produced meets the drinking water standard of the World Health Organization (WHO), and the light-to-heat conversion efficiency reaches 61%.

Embodiment 2

[0048] Embodiment 2: The CuS foam of the present invention is used as light-to-heat conversion material, and the distilled water collector is made of ordinary glass

[0049] Place CuS foam (10*10*0.3cm) on the surface of foamed polyethylene wrapped in a dust-free cloth to form a light absorber, then put it into a water storage tray, use ordinary glass to form a distilled water collector, and seal the slope cover. When the simulated solar light is irradiated on the inclined cover plate and works continuously for 4 hours, a large amount of mist composed of fine water vapor will appear on the glass wall of the collector, and the transmittance of sunlight will be greatly reduced. The yield of desalinated seawater is 0.97kg / m 2 / h, the ion concentration of the fresh water produced meets the WHO drinking water standard, and the light-to-heat conversion efficiency reaches 65%.

Embodiment 3

[0050] Example 3: Nano-CuS sponge is used as light-to-heat conversion material, with SiO 2 AR-coated glass forms the distilled water collector

[0051] Place the nano-CuS sponge (10*10*0.3cm) on the surface of foamed polyethylene wrapped in a dust-free cloth to form a light absorber, then put it into the water storage tray, and use SiO 2 AR-coated glass forms the distilled water collector and seals the beveled cover. The simulated solar light shines on the inclined cover plate and works continuously for 4 hours, and there is no obvious fog on the glass wall of the collector. The yield of desalinated seawater is 1.15kg / m 2 / h, the ion concentration of the fresh water produced meets the WHO drinking water standard, and the light-to-heat conversion efficiency reaches 78%.

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