Embedded solar seawater distilling device based on light condensation direct heating

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...

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.

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