Desalination method for naturally freezing seawater at freezing point

A technology of seawater and freezing point, which is applied in the direction of chilled water/sewage treatment, seawater treatment, general water supply saving, etc., can solve the problems of large-scale application limitation, large energy consumption, complex process, etc., and achieve low cost, low equipment investment cost, The effect of low energy consumption

Inactive Publication Date: 2006-10-11
TIANJIN UNIV
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Problems solved by technology

This method is complicated in process, consumes a lot

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  • Desalination method for naturally freezing seawater at freezing point

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Embodiment Construction

[0008] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail: figure 1 It is a schematic diagram of the device structure of the natural frozen seawater desalination method of the present invention. Including a high-pressure water pump with a head of 50m 1, 2 is a collection tank, 3 is a drainage support plate, the gap between two adjacent drainage support plates is 1mm wide, 4 is a nozzle, 5 is liquid seawater, and 6 is granular ice (minimum diameter 1.5mm ), 7 is a drainage channel, and 8 is a drain outlet. The water pump 1 is connected to the nozzle 4 through a pipeline, and the nozzle 4 is installed in the collection pool 2, and the bottom of the collection pool 2 is provided with a drainage support plate 3, which plays the role of supporting ice and draining water. Under the condition that the ambient temperature is -4°C, the high-pressure water pump 1 with a lift of 50m sends the seawater to the nozzle...

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Abstract

The invention relates to a method of natural seawater desalination at freezing point, belonging to technology of seawater desalination. The device used in mentioned method comprises: pump, pipe, injector, collecting tank, draining support board, granular ice, drainage conduit and draining discharge port; the pump is connected with injector through pipe to provide flow capacity and pressure for spraying seawater into atmosphere frog droplet; said draining supporting board on bottom of collecting pool acts for supporting granular ice and seawater of granular ice draining. The seawater is injected to atmosphere through injector, then seawater exchanges heat with atmosphere, the temperature is reduced and ice crystal is generated and grows into large granular ice, draining supporting board catches it and drains out seawater in granular ice; thus realizes seawater desalination process. The invention is characterized by simple desalination device, reliable operation, low energy consumption and special suitness for seawater deep desalination.

Description

technical field [0001] The invention relates to a desalination method for naturally freezing seawater in a freezing point environment, which belongs to seawater desalination technology. Background technique [0002] When the temperature is lower than the freezing point of seawater, the pure water component in the seawater becomes ice crystals, and the ice crystals are separated from the main seawater, and after melting, they become fresh water. The traditional method is to freeze seawater so that its temperature drops below its freezing point, from which pure water components crystallize and melt to produce fresh water. This method has complicated process, high energy consumption, and limited large-scale application. When the temperature is low in winter, sea ice is collected and further processed to be used as fresh water resources for development and utilization. Because sea ice will wrap some high-concentration seawater in the process of forming ...

Claims

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Application Information

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IPC IPC(8): C02F1/22C02F103/08
CPCY02A20/124
Inventor 解利昕王世昌李凭力王志赵欣
Owner TIANJIN UNIV
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