Household type solar seawater desalting system

Abstract

The invention discloses a household type solar seawater desalting system. The household type solar seawater desalting system is characterized by comprising a solar electric plate, an electric air pump, a seawater tank, a water inlet tube, a fresh water tank, a fresh water guide tube I, a bubbling-evaporating device, a multi-stage evaporating device and a U-shaped light gathering slot, wherein the seawater tank is arranged above the multi-stage evaporating device; the U-shaped light gathering slot is arranged below the multi-stage evaporating device; the solar electric plate is connected with the electric air pump by virtue of a power wire. According to the household type solar sweater desalting system disclosed by the invention, the conventional distillation technology (passive type distillation) and a bubbling-evaporating technology (active type distillation) are combined and improved, latent heat of steam is recycled, so that not only can the defects of a passive type distillation system be overcome, but also the device is miniaturized, and therefore, the household type solar seawater desalting system is more beneficial to application of island residents.

Description

technical field [0001] The invention belongs to the technical field of seawater desalination, and in particular relates to a household type solar seawater desalination system. Background technique [0002] Desalination is the use of seawater desalination to produce fresh water. It is an open-source incremental technology to realize the utilization of water resources. It can increase the total amount of fresh water without being affected by time, space and climate. The water quality is good and the price is gradually becoming reasonable. The vast areas of our country, such as rural areas and isolated islands, still generally lack electricity. Therefore, under the condition of tight energy in our country, the use of solar energy to produce fresh water from sea water is an important way to solve the shortage or insufficient supply of fresh water. [0003] The seawater desalination methods currently used include seawater freezing method, electrodialysis method, distillation met...

AI Technical Summary

Problems solved by technology

But these methods all exist the defect that needs to consume a large amount of fuel or electric power

[0004] Existing solar desalination devices are mainly divided into two types: 1. The main disadvantages of passive solar distillation systems: 1) The latent heat of steam is not reused; 2) The heat capacity of seawater is too large; 3) The natural convection mode in the device limits Improvement of device performance; 2. The main disadvantages of the active solar distillation system: 1) The equipment cost is relatively high; 2) It needs to consume a certain amount of electric energy, which is not conducive to the use of remote island residents

[0005] Therefore, it is urgent to find an energy-saving way to produce fresh water from seawater (brackish water) to solve the problem of insufficient supply of fresh water

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