Seawater desalination system using solar in air

Abstract

The invention discloses a seawater desalination system using solar in air and relates to a water desalination device which is used for continuously feeding hot air radiated by the sun through an openventilation system, exchanging heat with seawater in a closed distillation tank, and performing condensation extraction in combination with a condensing system and extracting water from the seawater.The system is clean and environmentally friendly, low in cost, and suitable for nautical vessels, salvage fishing boats, areas with scarce fresh water resources, can be used to cool and humidify indoors in combination with an exhaust fan, and is characterized by including a closed distillation tank, a condensing system and a ventilation system, wherein the loop of the ventilation system penetratesinto the closed distillation tank, one end of the loop of the condensing system is communicated with the top of the closed distillation tank, and the other end is bypassed from the outside of the closed distillation tank to the bottom of the closed distillation tank, and then penetrates the bottom of the closed distillation tank and penetrates through the top of the closed distillation tank; thecondensing system and the ventilation system are of open loops.

Description

technical field [0001] The invention relates to a seawater desalination system using solar energy in the air, which relates to a device for desalinating seawater by using air whose temperature has been raised by solar heat radiation during the working process of a marine ship, and belongs to the field of marine engineering. In particular, it relates to a kind of desalinated water that continuously sends hot air radiated by the sun through an open ventilation system, exchanges heat with seawater in a closed distillation tank, cooperates with a condensation system to extract and condense, and extracts water from seawater. device. Background technique [0002] At present, only dialysis, distillation, seawater freezing, etc. are used for seawater desalination. Currently, the most mainstream methods are distillation and reverse osmosis membrane. Among them, the distillation method has good water quality, but its disadvantages are high energy consumption and complicated process. ...

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Problems solved by technology

[0004] In view of the above situation, the applicant utilizes the sun in the air, utilizes the air whose temperature has been raised by solar radiation, exchanges heat with seawater, improves the evaporation efficiency of seawater, and collects and condenses the volatilized water vapor, thus solving the problem of seawater Dilute the problems of high energy consumption, high cost, complicated equipment and difficult promotion

[0005] Publication number CN201545714U discloses a solar high-temperature heat collection and desalination water treatment system. The system mainly includes a solar high-temperature heat collection system, a heat exchanger, and a desalination water treatment tank. The solar high-temperature heat collection system mainly includes a solar high-temperature heat collection tank , a tracking transmission device is installed in the solar high-temperature heat collection tank; an evaporator, a first-stage self-excited shower horizontal tube falling film evaporation-condenser, and a second-stage desalinated water treatment tank are respectively arranged from bottom to top. Self-excited horizontal tube falling film evaporation-condenser, condenser, the heat collected by the solar high-temperature heat collection system is transferred to the evaporator through the heat exchanger, and the solar energy is directly used as the heat source in this device through the heat conduction tube. Heating and volatilization, the solar heat collection system has a limited heat collection area, limited heat exchange energy, cannot continuously perform heat exchange, and cannot use the heat in the air. The energy is used, and it is continuously in a high temperature state, and the safety is poor

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