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Solar photothermal conversion water purification device and water purification method

A light-to-heat conversion and water purification device technology, applied in the field of water treatment, to achieve the effects of improving utilization rate, simplifying structure and preparation process, and good heat collection effect

Pending Publication Date: 2019-09-17
TSINGHUA UNIV +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the current solar photothermal conversion water purification device and water purification method still need to be improved

Method used

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  • Solar photothermal conversion water purification device and water purification method
  • Solar photothermal conversion water purification device and water purification method
  • Solar photothermal conversion water purification device and water purification method

Examples

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Embodiment 1

[0105] Example 1: Fabrication of a solar light-to-heat conversion water purification device with a semi-ellipsoidal solar collector cover and an isolated heating layer

[0106] The structure of the solar heat collecting cover can refer to the attached figure 1 , Figure 4-5 as well as Figure 15-17 , the semi-ellipsoidal solar heat collecting cover 100 is formed by polyethylene film, the equatorial plane of the solar heat collecting cover 100 is circular, the length ratio of the b axis and the a axis of the solar heat collecting cover (i.e. polar radius and The length ratio of the equatorial radius) is 3:2. The inner wall of this solar heat collecting cover 100 is provided with 16 stainless steel pipe support frames 600 (reference Figure 5 , the structure is similar to the frame of an umbrella and can be folded), the inner wall 140 of the solar heat collecting cover 100 is provided with a coating formed by a one-way light-transmitting coating and an infrared reflecting coa...

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Abstract

The invention discloses a solar photothermal conversion water purification device and a water purification method. The solar photothermal conversion water purification device provided by the invention comprises a semi-ellipsoid solar heat collecting cover, an isolation heating layer and a cooling unit, wherein a fresh water collecting tank is arranged at the bottom of the inner wall of the solar collecting cover; an evaporation plane is defined by the fresh water collecting tank at the bottom of the solar heat collecting cover; a fresh water outlet is formed in the fresh water collecting tank and is connected with a fresh water storage unit; the length of an axis b of the solar heat collecting cover is greater than that of an axis a; the axis b is vertical to the evaporation plane; the isolation heating layer is positioned inside the solar heat collecting cover; the isolation heating layer can be in contact with the water surface; sea water is absorbed inside the isolation heating layer through pore passages; a substrate has photothermal conversion materials; the cooling unit can cool the outer surface of the solar heat collecting cover. The solar photothermal conversion water purification device can be directly placed on the water surface to be used; the structure is simple; the cost is low; the solar utilization rate is high; the water purification efficiency is high.

Description

technical field [0001] The invention relates to the field of water treatment, in particular to a solar photothermal conversion water purification device and a water purification method. Background technique [0002] Water is the origin of life, and human beings cannot live without water. However, in today's world, human beings are facing a severe shortage of fresh water resources. Seawater desalination can increase the total amount of freshwater and make better use of water resources. Seawater desalination is the use of seawater desalination to produce fresh water. There are many methods for seawater desalination, such as traditional freezing method, distillation method, reverse osmosis method, adsorption method, etc. The above-mentioned methods generally have the disadvantages of high energy consumption and low efficiency, large and complex equipment, high cost, and generation of a large amount of pollutants. Solar desalination of seawater is an emerging technology with ...

Claims

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Application Information

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IPC IPC(8): C02F1/04F24S20/70F24S70/20
CPCC02F1/04C02F1/043C02F2103/08Y02A20/212
Inventor 张潇源李·伦纳德程文浩黄霞郭兴国徐婷刘瑞峰
Owner TSINGHUA UNIV
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