Embedded solar seawater distilling device based on light condensation direct heating

A distillation device and built-in technology, which is applied in seawater treatment, general water supply saving, heating water/sewage treatment, etc., can solve the high tracking accuracy requirements of solar concentrating heat collection systems, large footprint of solar heat collection systems, The effective utilization rate of the evaporation and condensation surface is not high, so as to achieve the effect of increasing the evaporation area, prolonging the water production time, and improving the heat and mass transfer efficiency

Pending Publication Date: 2019-04-16
INNER MONGOLIA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional solar desalination technology has the following disadvantages: low freshwater output per unit heat collection area, large area occupied by the solar heat collection system, large heat capacity of seawater to be evaporated, large heat transfer resistance of evaporation, etc.
[0003] The Chinese patent with the application number CN201310693514.5 discloses a multi-effect standpipe spiral hydrophilic and breathable distillation device with self-reheating function. The condensation latent heat of the cylinder is recovered, the sensible heat of fresh water and concentrated sea water is not utilized, and the solar heat collection system needs to be configured to make the device occupy a large area, large heat transfer resistance, and lengthy heat transfer pipelines.
The Chinese patent application with the application number CN201710166398.X discloses a horizontal eccentric sleeve solar seawater desalination device with the function of concentrating direct heat, which has the characteristics of not reheating the feed seawater, and the effective utilization rate of the evaporation and condensation surface is not high. , The solar concentrating heat collection system requires high tracking accuracy, and the condensation method is film condensation, etc.

Method used

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  • Embedded solar seawater distilling device based on light condensation direct heating
  • Embedded solar seawater distilling device based on light condensation direct heating
  • Embedded solar seawater distilling device based on light condensation direct heating

Examples

Experimental program
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Effect test

Embodiment 1

[0033] See attached figure 1 , 2 , this embodiment provides a built-in solar seawater distillation device based on concentrating direct heat, including: a fresh water tank 21, a concentrated seawater tank 23, a heat exchange coil 26, a concentrating light funnel 1, a light guide 2, a heating Water tank 4, reflective round table 5 and round table sleeve 14;

[0034] The fresh water tank 21 is used for storing fresh water produced by the device, and the concentrated sea water tank 23 is used for storing unevaporated sea water;

[0035] Both the fresh water tank 21 and the concentrated seawater tank 23 are provided with a heat exchange coil 26, and the two heat exchange coils 26 are connected, wherein one end of the heat exchange coil 26 in the fresh water tank 21 is drawn from the fresh water tank 21 to communicate with the sea water , under the action of the water pump 22, the feed seawater can be introduced into the heat exchange coil 26; the other end of the heat exchange c...

Embodiment 2

[0043] See attached Figure 5 , on the basis of embodiment 1, further, the inside of the fresh water tank 21 and the concentrated seawater tank 23 are provided with a water baffle 24 and a water quantity controller 25; the tank body is divided into upper and lower parts by the water baffle 24, and the The hot water is located in the area above the water retaining plate 24; the water volume controller 25 is used to control the water level of the exchanged hot water.

[0044] The fresh water tank 21 is provided with a pressure balance ball 19. As the temperature of the heating water tank increases, the pressure in the evaporation and condensation chamber increases, which will hinder the condensation of water vapor. The function of the pressure balance ball is to keep the pressure in the device consistent with the outside world.

[0045] The concentrated seawater tank 23 is provided with a pressure gauge 20 for real-time monitoring of its internal pressure.

[0046] The water vo...

Embodiment 3

[0049] See attached Image 6 , on the basis of Embodiment 1 or 2, further, the reflective round table is set as a heat-insulating reflective round table, that is, an insulating material 15 is laid on the inner surface of the reflective round table, and the heat-insulating and reflective round table is set to reduce the heat capacity of the water body in the heating water tank 4 , shorten the start-up time of the rated heat input device and increase the operating temperature of the device.

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Abstract

The invention discloses an embedded solar seawater distilling device based on light condensation direct heating. The device is characterized in that a light reflection circular truncated cone is installed in the center of a heating water tank, a light condensation funnel and a throwing light guide device are installed above the heating water tank, and a heat preservation material is arranged at the bottom of the heating water tank; an area between a circular truncated cone sleeve and the heating water tank is an evaporation condensation cavity. Feeding seawater passes through heat exchange coil pipes arranged in a fresh water tank and a concentrated seawater tank under driving of a water pump in sequence and then enters the evaporation condensation cavity, the wall face of a hydrophilic material is sprayed after the feeding seawater passes through the evaporation condensation cavity, a water film is formed under the effect of water stopping grooves, and water in the heating water tankabsorbs energy so that the temperature of the water can be increased. The water film is heated and evaporated to form vapor, and the vapor is condensed to form fresh water on the wall face of the side, with low temperature, of the evaporation condensation cavity; finally, the non-evaporated seawater enters the concentrated seawater tank, and the fresh water enters the fresh water tank. By integrating the solar heat collection part and the sweater distilling desalting part, the device has the advantages of being compact in structure, small in occupation floor, capable of achieving efficient coupling of seawater evaporation temperature and heat collection temperature of a condenser and the like.

Description

technical field [0001] The invention relates to the technical field of seawater distillation, in particular to a solar seawater distillation device. Background technique [0002] Faced with the increasingly severe challenge of scarcity of fresh water resources, human beings have also made a lot of attempts to alleviate the plight: saving water, implementing cross-basin water transfer projects, constructing water storage projects, and reusing wastewater. However, the above measures can only improve the utilization of existing water resources, but cannot effectively increase the fresh water supply. The earth has abundant seawater reserves. Based on the mechanism of the earth's water cycle, the desalination process of seawater can be realized in the device by using solar energy. The traditional solar desalination technology has the following disadvantages: low freshwater output per unit heat collection area, large area occupied by the solar heat collection system, large heat c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/14C02F1/08C02F103/08
CPCC02F1/043C02F1/08C02F1/14C02F2103/08C02F2201/002Y02A20/142Y02A20/212Y02A20/124
Inventor 常泽辉李建业李怡暄侯静张翼李瑞晨
Owner INNER MONGOLIA UNIV OF TECH
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