Negative pressure seawater desalination method and its device

A seawater desalination and negative pressure technology, applied in chemical instruments and methods, water/sewage treatment, water/sludge/sewage treatment, etc. Long service life, simple production process and small footprint

Inactive Publication Date: 2004-02-11
马一爽
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, these two methods have disadvantages: the distillation method requires a large-area still, occupies a large area, and is highly dependent on sunlight, and its output is easily affected by the weather; the membrane osmosis method is expensive due to the semi-permeable membrane used. , and its service life is limited, and regular backwashing is required during use, the operation is complicated and the production cost is high

Method used

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  • Negative pressure seawater desalination method and its device
  • Negative pressure seawater desalination method and its device
  • Negative pressure seawater desalination method and its device

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Experimental program
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Embodiment Construction

[0011] Such as figure 1 Shown, the technological process that embodiment adopts is:

[0012] 1. Sedimentation: The seawater passes through the sedimentation tank to let the sediment settle to the bottom of the tank.

[0013] 2. Filtration: The precipitated seawater is filtered by a filter to remove granular impurities.

[0014] 3. Evaporation: After the seawater is pumped into the evaporation tank, a low pressure is generated by the air pump, and the water boils and evaporates in large quantities.

[0015] 4. Miscibility: Water vapor is pumped into the dissolved water pool by the air pump, and is miscible with the liquid water in the pool to become liquid fresh water.

[0016] Such as figure 2 As shown, the device connection structure and working principle are:

[0017] The suction pipe of the water delivery pump (3) is connected to the filter (2), and the filter is installed in the sedimentation tank (1), the outlet pipe of the water delivery pump (3) is connected to the...

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Abstract

Sea water after being precipitated and filtered is fed into sealed container; the connector is pumped to produce negative pressure so as to lower the boiling point of water for boiling at normal temperature, and the water vapor is pumped into liquid water to mix and to produce fresh water. The apparatus includes deposition pool, filter, water pump, evaporating tank, air pump, water dissolving pool and valve connected together. The sea water desalination method of the present invention has small coverage area, no effect of weather, simple production apparatus and other advantages.

Description

Technical field [0001] The invention relates to a seawater desalination method and seawater desalination equipment using the method. Background technique [0002] At present, the methods of desalinating seawater to produce domestic water mainly include distillation and membrane osmosis. The distillation method uses sunlight to heat the seawater in a transparent airtight container to evaporate it, and the water vapor is condensed to form liquid water. , to achieve the purpose of distillation and desalination; the membrane osmosis method is to use a semi-permeable membrane to filter seawater, and the semi-permeable membrane can pass through water molecules but not particles larger than water molecules such as magnesium ions, sodium ions, and chloride ions. In this way, pure water is separated from seawater to realize desalination of seawater. However, these two methods have disadvantages: the distillation method requires a large-area still, occupies a large area, and is highl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/00
Inventor 马一爽
Owner 马一爽
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