Waste heat utilization circulating type environment-friendly seawater desalination system

Abstract

A disclosed waste heat utilization circulating type environment-friendly seawater desalination system comprises a preheating tank, a second gathering ring, a distillation area shell and a flash evaporation area shell, a water inlet is formed in the left side of the preheating tank, an outer protective shell is arranged on the right side of the preheating tank, a first guide plate is installed on the inner side of an inner heating tank, a primary drying tank is arranged on the right side of the outer protective shell, a guide rod is installed on the inner side of the first gathering ring, a secondary drying tank is arranged on the right side of the primary drying tank, and gathering plates are installed on the lower side of the second gathering ring and the lower side of the first gathering ring. According to the waste heat utilization circulating type environment-friendly seawater desalination system, flue gas waste heat can be utilized, heat dissipation is reduced, the heat utilization rate is increased, environment-friendly benefits are increased, steam generated after flue gas is heated can be dried, and the influence of steam heat absorption accelerated by water vapor contained in the steam on the evaporation effect in the distillation process is reduced.

Description

Technical field [0001] The present invention relates to the field of seawater desalination, and in particular, a residual heat utilization cycle-based environmentally friendly seawater dilution system. Background technique [0002] Seawater is desalinated to produce fresh water in seawater desalination, it is an open source incremental technique for realizing water resources. It can increase the total freshwater, and can not be affected by the time and space and the climate, can also ensure stable water supply such as drinking water and industrial boiler hydration of coastal residents. The existing seawater desalination method has seawater freezing method, electrodesia, distillation, reverse osmosis, and ammonium carbonate ion exchange method, but the current reverse osmosis method and distillation method is the mainstream of the market, as a distillation method, Most of the distillation method uses low temperature and more different distillation techniques, refers to a distillat...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a waste heat utilization circular environment-friendly seawater desalination system to solve the problem that most of the seawater desalination systems on the market using low-temperature multi-effect distillation and desalination technology proposed in the above background technology are inconvenient to utilize the waste heat of flue gas. It causes the heat to dissipate in vain, reduces the heat utilization rate, is not conducive to environmental protection, and is not convenient for drying the steam generated after the flue gas is heated, causing the water vapor contained in the steam to accelerate the heat absorption of the steam and affect the evaporation of the distillation process problem of effect

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