Solar energy evaporating type separation method and apparatus therefor

A separation method, evaporative technology, applied in chemical instruments and methods, water/sewage treatment, general water supply saving, etc., to achieve the effects of simple structure design, enhanced absorption, and increased condensation area

Inactive Publication Date: 2004-08-25
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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Problems solved by technology

The use of fresh water is generally valued around the world, and a series of solutions such as water conservation and fresh water recycling have been proposed. These are all necessary fresh water resources for the sustainable development of society. The material separation method for the purpose of evaporating and separating substances by energy recycling, especially seawater desalination method has not been reported yet.

Method used

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  • Solar energy evaporating type separation method and apparatus therefor

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Embodiment Construction

[0017] Try it out in the ocean as an example:

[0018] Use solar absorbing material (asphalt) to absorb solar radiation energy into the heat-insulating device. In order to avoid energy loss, the device adopts a heat-insulating and airtight structure. The energy absorbed by the device is used to heat the material to be separated, so that its surface temperature rises locally. High, to increase the evaporation rate of the substance and its saturated vapor pressure in the device, but due to the large difference in the saturated vapor pressure of the substances in the mixture, the components of the steam are dominated by those with high saturated vapor pressure. At the same time, the steam must be in the Condensation and liquefaction on all surfaces in the device, the liquefaction process condenses faster on surfaces with lower temperatures, and the condensed substances on these surfaces will be directed to flow into the collection container, thus realizing the dynamics of evaporat...

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Abstract

The present invention discloses a solar evaporation type separation method and its equipment. Said method utilizes solar energy as main heating energy source to raise surface local temperature of separated mixture and raise the evaporation and condensation speed of mixture so as to implement directional flow of substance and attain the goal of substance separation. Said equipment structure is characterized by that its shell body is a double-layer container, upper opening is oblique surface structure, heat-insulating layer made of heat-insulating material is added between inner layer and outer layer, its bottom is fresh water tank whose bottom portion is equipped with condenser. Said equipment is specially applicable to desalination of sea water.

Description

technical field [0001] The invention relates to material separation and seawater desalination technology, in particular to a solar evaporation separation method and a used device, which is especially suitable for seawater desalination. Background technique [0002] Today, the purification and separation of substances has become an important industrial industry. This production process can be divided into physical methods and chemical methods. The most representative physical methods are distillation and membrane separation. Among them, the distillation method generally requires an evaporator and a condenser, which not only need heating but also refrigeration during work, and the structure is complex and consumes a lot of energy. Membrane separation method is widely used now, but this kind of system requires regular cleaning and replacement of membrane materials, and at the same time consumes a certain amount of electric energy during operation, so the cost is relatively high...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/14
CPCY02A20/124Y02A20/142Y02A20/212
Inventor 刘万发从志强王科公发全赵彤徐增和徐文刚
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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