Solar seawater desalination device and method based on light-absorbing boiling

Abstract

The invention discloses a solar seawater desalination device and method based on light-absorbing boiling. The device includes a condensing lens, a lens bracket, a steam outlet, a condenser, a water feeding pump, a seawater pool, a fresh water collecting tank, a water feeding port, a concentrated brine discharge port, a distillation pool, to-be-distilled seawater, a light-absorbing material, and a glass partition plate; the condensing lens is fixed at the upper end of the distillation pool through the lens bracket; the upper end of the distillation pool is sealed through the glass partition plate; the top end of the distillation pool is equipped with the steam outlet, and the lower end of the distillation pool is equipped with the concentrated brine discharge port and the water feeding port; the water feeding pump allows the to-be-distilled seawater to successively pass through the condenser and the water feeding port from the seawater pool and then flow into the distillation pool; the to-be-distilled seawater in the distillation pool is covered with the light-absorbing material; the steam outlet is connected with the condenser and the fresh water collecting tank successively; incident light is condensed through the condensing lens, then is incident and penetrates through the glass partition plate, and is projected to the light-absorbing material. The device and the method adopt the principle of light condensing local boiling, take boiling gas production as the primary, combine and promote evaporation, and increase the production rate of fresh water.

Description

Technical field [0001] The invention belongs to the field of solar seawater desalination, and relates to a solar seawater desalination device and method based on light absorption boiling. Background technique [0002] From a global perspective, seawater resources are abundant but freshwater resources are relatively scarce. In order to extract freshwater from seawater and meet people's daily production and life needs, seawater needs to be desalinated. Traditional seawater desalination technologies mainly include distillation, permeation, and chemical methods. Most of these methods consume electricity and energy, and cost too much. Solar energy is an inexhaustible and inexhaustible clean energy. The use of solar energy for seawater desalination has great social and economic value. [0003] Chinese patent 201310232944.7 discloses a "solar sea water desalination system", which uses solar heating tubes to obtain solar energy, heats the seawater in the tubes, obtains steam through a ste...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the shortcomings of existing solar seawater desalination devices and methods, such as low efficiency, complex system, and high cost, and provide an efficient and convenient solar seawater desalination device and method

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