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All-weather seawater desalination device based on interface heating and method thereof

An interface heating and all-weather technology, which is applied in chemical instruments and methods, heating water/sewage treatment, seawater treatment, etc., can solve problems such as short sunshine time, inability of evaporation system to work continuously around the clock, uneven sunshine distribution, etc.

Inactive Publication Date: 2021-05-18
GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are two main reasons that really limit the application of solar interface heating technology: (1) In sunny days, even if the photothermal efficiency reaches 100%, the evaporation rate of the device is limited by the total intensity of solar radiation. In addition to thermal efficiency, additional energy input for evaporation is also an important way to increase water production rate
(2) The short sunshine time and uneven sunshine distribution make the evaporation system unable to work continuously around the clock. Therefore, it is particularly important to solve the problem of continuous evaporation water production under low light conditions and increase the daily water production.
However, the single wave energy seawater desalination system has the problems of low efficiency and slow water production rate.

Method used

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  • All-weather seawater desalination device based on interface heating and method thereof
  • All-weather seawater desalination device based on interface heating and method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] like figure 1 and figure 2 As shown, an all-weather seawater desalination device based on interface heating includes five parts: buoyancy tank 4, fresh water recovery module, photoelectric interface heating module, wave power generation module and control module.

[0040] The fresh water recovery module includes an inclined transparent condensation surface 1 , a sump 2 and a water storage tank 18 . The inclined transparent condensation surface 1 is arranged on the top of the buoyancy tank 4, and constitutes a closed space with the buoyancy tank 4, and the sump 2 is arranged inside the buoyancy tank 4, and is connected with the bottom of the oblique transparent condensation surface 1, to collect water from the oblique transparent condensation surface. The condensed water that slides down on the condensation surface 1 is provided with a drainage hole 3 on the sump 2 . The water storage tank 18 is arranged on the outside of the buoyancy tank 4, and the two are connected...

Embodiment 2

[0056] This embodiment discloses an all-weather seawater desalination method based on interface heating, using the all-weather seawater desalination device based on interface heating in Example 1, specifically including:

[0057] When the light intensity detector 13 receives the light intensity signal greater than 500W m -2 . The cotton fibers in the channels 7 of the heat-insulating support 6 absorb seawater and transport it to the conductive light-absorbing layer 5 . The control module 12 adjusts the storage battery pack 11 to a charging state, and at this time, the energy of the photo-electric interface heating module is provided by solar energy and wave energy. The float 14 drives the wave energy generating device 15 to supply power to the battery pack 11 and the conductive light-absorbing layer 5. At the same time, the sunlight shines on the conductive light-absorbing layer 5 through the inclined transparent condensation surface 1. The conductive light-absorbing layer 5 ...

Embodiment 3

[0059] This embodiment discloses another all-weather seawater desalination method based on interface heating, using the all-weather seawater desalination device based on interface heating in Example 1, specifically including:

[0060] When the light intensity detector 13 receives the light intensity signal greater than 500W m -2 . The cotton fibers in the channels 7 of the heat-insulating support 6 absorb seawater and transport it to the conductive light-absorbing layer 5 . The control module 12 adjusts the storage battery pack 11 to a charging state, and at this time, the energy of the photo-electric interface heating module is provided by solar energy and wave energy. The float 14 drives the wave energy generating device 15 to supply power to the battery pack 11 and the conductive light-absorbing layer 5. At the same time, the sunlight shines on the conductive light-absorbing layer 5 through the inclined transparent condensation surface 1. The conductive light-absorbing lay...

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Abstract

The invention discloses an all-weather seawater desalination device and a method thereof, the device comprises a buoyancy tank, a fresh water recovery module, a light-electricity interface heating module and a wave energy power generation module, the fresh water recovery module comprises a water collection tank and an inclined condensation surface, and the light-electricity interface heating module comprises a conductive light absorption layer and a heat insulation support body; and the wave energy power generation module comprises a wave energy power generation device and a storage battery pack. When sunlight is sufficient, the solar energy and wave energy power generation device is used for heating the conductive light absorption layer, so that seawater can be efficiently evaporated, and meanwhile, the storage battery pack is charged; when sunlight is insufficient, the wave energy power generation device and the storage battery pack are used for heating the conductive light absorption layer, so that the device can continuously work under the condition of insufficient light, and all-weather sea water desalination is realized.

Description

technical field [0001] The invention relates to the field of seawater desalination, in particular to an all-weather seawater desalination device and method based on interface heating. Background technique [0002] In today's world, with the rapid population growth and increasingly serious water pollution, the shortage of fresh water resources is becoming one of the major crises facing human society. There are abundant seawater resources on the earth, seawater desalination technology is an effective way to obtain clean freshwater, and it is expected to solve the increasingly serious water resource crisis. [0003] The conventional thermal evaporation seawater desalination method generates water vapor by heating the whole water, which consumes a lot of energy. Evaporation is a surface process, and it only needs to heat the surface water to achieve evaporation, thereby improving evaporation efficiency and saving energy. [0004] The solar interface heating seawater desalinati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/14C02F1/04C02F103/08
CPCC02F1/14C02F1/048C02F2103/08Y02A20/124Y02A20/142Y02A20/212
Inventor 徐刚沈聪朱艳青李育坚
Owner GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI
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