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Seawater desalination device with multi-stage heating of hot air

A technology of hot air and cold air, applied in seawater treatment, water/sewage multi-stage treatment, chemical instruments and methods, etc., can solve complex problems, achieve less auxiliary systems, reduce production costs, and improve comprehensive utilization.

Active Publication Date: 2016-01-20
孔令斌
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The rapid spray distillation method is to spray seawater into the hot air flow, which has a seawater spray system and a hot air pumping system, which is very complicated

Method used

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  • Seawater desalination device with multi-stage heating of hot air
  • Seawater desalination device with multi-stage heating of hot air

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Embodiment Construction

[0013] Such as figure 1 As shown, 6 seawater evaporation tanks are arranged in a row at the same horizontal position, the bottoms of the 6 seawater evaporation tanks are connected, and the highest water level line 20 is set at two-thirds of the height of the seawater evaporation tanks. A sea salt discharge valve 2 is installed at the bottom of the first-stage seawater evaporation tank 1; a hot air inlet pipe 16 is introduced at the top of the first-stage seawater evaporation tank 1 and reaches the bottom of the tank directly. After the condensation pipe 15 connected to the first and second stage seawater evaporation tank enters the bottom from the top of the second stage seawater evaporation tank 3, it rises above the highest water level line 20 and then drops to the bottom; After the condensation pipe 14 enters the bottom from the top of the third-stage seawater evaporation tank 4, it rises above the maximum water level line 20, and then drops to the bottom; 5 After the top ...

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Abstract

The invention provides a hot-air multi-stage heating sea water desalting device which is designed according to the idea that sea water is blown in by using hot air and then heated and stirred, the relative motion between hot air and the sea level is accelerated, and sea water is evaporated and fresh water is condensed and collected under normal pressure. The hot-air multi-stage heating sea water desalting device provided by the invention is provided with a hot-air flowing channel and a fresh water flowing-out channel, wherein the hot-air flowing channel is used for heating and evaporating sea water and condensing fresh water in a multi-stage sea water evaporation tank in sequence; the fresh water flowing-out channel is shared with various stages of sea water evaporation tanks; a sea salt discharging valve for discharging solid sea salt is also arranged at the bottom of the first-stage sea water evaporation tank; and evaporation of sea water and condensation of fresh water are realized through condenser pipes of various stages of sea water evaporation tanks. According to the invention, solar energy, nuclear energy and industrial waste heat are used as heat sources; a set of tank type solar photo-thermal system for heating air is configured for the hot-air multi-stage heating sea water desalting device provided by the invention, so that a closed circulation loop that air is heated in the tank type solar photo-thermal system and heat is released in the sea water desalting device is formed, and therefore, a solar sea water desalting factory is formed.

Description

Technical field [0001] The invention relates to a seawater desalination device, in particular to a seawater desalination device with multi-stage heating of hot air. Background technique [0002] Thermal seawater desalination technology has a long history, and its development has mainly involved multi-stage flash distillation (MSF), multiple-effect distillation (MED), and rapid spray distillation (RSD). Multi-stage flash evaporation (MSF) and multiple-effect distillation (MED) are two technical measures to make water evaporate and condense rapidly by heating seawater or vacuum depressurization, and the heat source is hot water or steam. The innovation of Rapid Spray Distillation (RSD) is to spray seawater into hot air, so that the moisture in seawater quickly turns into water vapor and precipitates solid sea salt. The heat source is hot air. The technical development trend of using hot air as a heat source has been formed. It is a feasible technical route to realize the sep...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/10C02F103/08
Inventor 孔令斌
Owner 孔令斌
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