Ternary-composite solar steam generation device and application thereof

A technology of solar steam and ternary compounding, which is applied in the field of nanotechnology and photothermal conversion materials, can solve problems such as the inability to break through in photothermal conversion efficiency and heat loss of thin films, achieve great commercial value and application prospects, reduce heat loss, and install The effect of simple structure

Inactive Publication Date: 2017-09-19
HUBEI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the current light-to-heat conversion films are placed directly on the water surface. Due to the high thermal conductivity of the film material itself, there is still heat loss from the film to the lower water body, which makes the light-to-heat conversion efficiency unable to break through this bottleneck.

Method used

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  • Ternary-composite solar steam generation device and application thereof
  • Ternary-composite solar steam generation device and application thereof
  • Ternary-composite solar steam generation device and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] like figure 1 As shown, the present invention provides a ternary composite solar steam generating device, which includes a water container 1, a light-to-heat conversion film 2, a heat insulation board 3 and a water delivery pipeline, water is housed in the water container 1, Only the lower part of the heat insulation board 3 is immersed in water, and the upper part is located above the water surface. The light-to-heat conversion film 2 covers the upper surface of the upper part of the heat insulation board 3 . Uniform and dense capillary tubes 4 , the lower openings of the capillary tubes 4 are immersed in water, and the upper openings of the capillary tubes are close to or in contact with the light-to-heat conversion film 2 .

[0033] Specifically, the water container 1 is a glass container with an open top, the light-to-heat conversion film 2 is a reduced graphene oxide-based light-to-heat conversion film, and the heat insulation board 3 is made of foamed polyethylene...

Embodiment 2

[0035] like figure 1 As shown, the present invention provides a ternary composite solar steam generating device, which includes a water container 1, a light-to-heat conversion film 2, a heat insulation board 3 and a water delivery pipeline, water is housed in the water container 1, The heat insulation board 3 is located above the water surface as a whole and the lower surface is separated from the water surface. The light-to-heat conversion film 2 is located above the heat insulation board 3 and the heat insulation board is not in contact with the light-to-heat conversion film. The uniform and dense capillaries 4 of the heat shield 3 , the lower openings of the capillaries 4 are immersed in water, and the upper openings of the capillaries are close to or contact the light-to-heat conversion film 2 . In the above structure, the heat insulation board 3 and the light-to-heat conversion film 2 are fixed by any method that those skilled in the art can think of, such as by bonding o...

Embodiment 3

[0038] It is basically the same as Example 1, more specifically: the glass container is a beaker, the heat shield is a cylinder and its diameter is the same as the inner diameter of the beaker, the diameter of the heat shield is 40mm, the height is 15mm, the capillary length is 30mm, and the inner diameter is 0.5mm, wherein the reduced graphene oxide-based light-to-heat conversion film is prepared by the following method:

[0039] (1) Synthesis of reduced graphene oxide: 200 mg of graphene oxide and 50 mg of ascorbic acid were added to 200 ml of deionized water, and magnetically stirred for 10 minutes. The above dispersion was placed in a microwave reactor at 200W and 95°C for 10 minutes. The resulting liquid was filtered and dried to obtain reduced graphene oxide.

[0040] (2) Preparation of reduced graphene oxide-based light-to-heat conversion film: 100 mg of shaped filter paper was added to 100 mL of solvent, and magnetically stirred at 100° C. for 2 hours to obtain a cell...

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Abstract

The invention relates to a ternary-composite solar steam generation device and application thereof. The ternary-composite solar steam generation device comprises a water container, a photo-thermal conversion film, a heat insulation plate and water delivery pipelines, wherein water is contained in the water container; the whole heat insulation plate is located above the water surface, or only the lower portion of the heat insulation plate is immersed in water; the photo-thermal conversion film is located above the heat insulation plate, or the outer surface of the upper portion of the heat insulation plate is covered with the photo-thermal conversion film; and the water delivery pipelines are a plurality of capillary pipes which are inserted into the heat insulation plate, openings in the lower ends of the water delivery pipelines are immersed in water, and openings in the upper ends of the water delivery pipelines are close to or make contact with the photo-thermal conversion film. The ternary-composite solar steam generation device and the application thereof have the advantages that the heat insulation plate and the capillary pipes are introduced, the capillary pipes automatically deliver water to the photo-thermal conversion film, the high-temperature photo-thermal conversion film is isolated from a low-temperature water body through the heat insulation plate, and heat conduction is cut off, so that heat loss is reduced, and heat obtained through photo-thermal conversion is effectively utilized, namely, the photo-thermal conversion efficiency is improved; and the ternary-composite solar steam generation device is unique and simple in structure and high in photo-thermal conversion efficiency and has great commercial value and application prospects in the fields such as the solar power generation field, the sea water desalination field and the sewage treatment field.

Description

technical field [0001] The invention relates to the fields of nanotechnology and photothermal conversion materials, in particular to a ternary composite solar steam generating device and its application. Background technique [0002] In recent years, renewable energy has attracted widespread attention from all walks of life. Solar energy has become one of the focuses of research in the field of renewable energy due to its advantages of abundance, easy availability, and non-pollution. Photothermal conversion materials represented by graphene oxide, gold nanoparticles, etc. can effectively capture solar energy and convert it into heat energy that can be used to heat nanofluids and generate high-temperature steam, which is widely used for solar energy, such as from large-scale It provides possibilities for applications such as solar thermal power generation, seawater desalination and sewage treatment, to small-scale water purification and sterilization systems. Excellent photo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F22B1/00C01B32/184
CPCC01P2004/03C01P2004/04F22B1/006Y02P20/133
Inventor 王贤保郭安康梅涛李金华王建颖
Owner HUBEI UNIV
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