Solar energy-wind energy complementary driving multistage bubbling evaporation seawater desalination device

Abstract

The present invention discloses a solar energy-wind energy complementary driving multistage bubbling evaporation seawater desalination device. In the prior art, the following problems can not be solved well: the equipment investment is high, the cost is high, the energy consumption is high, and the requirements of the seawater pretreatment are high. The device of the present invention comprises a main device and an accessory device, wherein the main device comprises a four-stage apparatus and a top device, wherein a first stage apparatus, a second stage apparatus, a third stage apparatus and a fourth stage apparatus form a series connection from bottom to up to form the four-stage apparatus, each stage of the apparatus is provided with an evaporation chamber seawater inlet, an evaporation chamber seawater outlet, evaporation chamber aeration heads and an evaporation chamber concentrated seawater outlet, the accessory device comprises a wind power generator, a storage battery, an air pump, a seawater storage tank and a fresh water storage tank. According to the present invention, the bubbling evaporation multi-stage condensation method is adopted, such that the condensed latent heat of the seawater is utilized a plurality of times, the evaporation and condensation heat transfer process of the seawater is reinforced, and the thermal efficiency of the device and the fresh water yield are improved.

Description

technical field [0001] The invention belongs to the technical field of seawater desalination, in particular to a solar-wind energy complementary driven multi-stage bubbling evaporation seawater desalination device. Background technique [0002] Multi-stage flash (MSF), low-temperature multiple-effect distillation (LT-MED), and reverse osmosis (RO) are the three mainstream technologies for seawater desalination today. However, these three methods have large equipment investment, high cost, high energy consumption, and high requirements for seawater pretreatment. They are only suitable for large-scale seawater desalination projects, and are not suitable for solving small amounts of freshwater demand, such as island areas and remote inland areas. Freshwater demand in regions, tourist attractions, construction sites like offshore platforms, etc. Moreover, these three methods consume insufficient electric energy or petrochemical energy, and the discharge of a large amount of gre...

AI Technical Summary

Problems solved by technology

Existing seawater desalination devices have certain defects: the structure of the device is complex, the efficiency of seawater desalination is low, and more external power consumption is required during operation

Moreover, solar energy is unstable, and it is easily affected by natural conditions such as day and night, seasons, and random factors such as sunny, cloudy, cloud, and rain, which has brought adverse effects to current solar desalination devices.

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