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Sea ice desalinization facilities with gravity method and sea ice solid-state gravity desalinization method

A gravity method and gravity technology, applied in the field of facilities for preparing fresh water, can solve the problems of irregular direction of brine channels, difficulty in brine moving downward, slow moving speed, etc., and achieve the effects of small maintenance, easy promotion and high utilization rate.

Active Publication Date: 2007-02-28
BEIJING NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Gravity-based sea ice desalination facilities address the problems of small gaps between sea ice and ice crystals, irregular brine channel directions, difficulty in moving brine downwards, and slow moving speed. The heat exchange makes the brine move down along the ice crystal gap under the action of gravity, which can greatly shorten the salt discharge time

Method used

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  • Sea ice desalinization facilities with gravity method and sea ice solid-state gravity desalinization method
  • Sea ice desalinization facilities with gravity method and sea ice solid-state gravity desalinization method
  • Sea ice desalinization facilities with gravity method and sea ice solid-state gravity desalinization method

Examples

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Embodiment

[0037] Example: Gravity sea ice desalination test

[0038] The test period was from January 17, 2005 to January 30, 2005. The test site is Lingang Economic and Technological Development Zone, Cangzhou City, Hebei Province (formerly Zhongjie Friendship Farm: 117°21′ east longitude, 36°22′ north latitude). The desalination facility adopts the gravity method sea ice desalination facility constructed according to the aforementioned specific examples. The ice used in the test was taken from the Bohai Bay. The salinity of the seawater was about 32.7‰ when the ice was formed, the salinity of the sea ice was 5.0-5.2‰, and the average thickness of the ice was about 10-15cm.

[0039] The background value of the environmental elements of the gravity method sea ice desalination facility: During the period from January 17th to January 30th, the multi-day average solar radiation intensity was 119.2w / m 2 The daily average temperature is -4.87℃~-0.22℃, and the multi-day average temperature ...

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Abstract

The invention discloses a sea ice solid gravity desalinizing method, which comprises the following parts: feed device, gravity desalinization pool, salt water observing pump, product transmitting device and reservoir, wherein the sea ice solid gravity desalinizing method comprises the following steps: fetching sea ice in the gravity desalinizing pool through feed device; discharging bittern in the ice part acted by gravity; collecting solid cryolite; transmitting in the reservoir; melting naturally.

Description

technical field [0001] The invention relates to a facility and method for preparing fresh water, in particular to a facility for preparing fresh water by desalination of sea ice by gravity method and a technical method for solid gravity desalination of sea ice, which belongs to indirect seawater desalination. Background technique [0002] With the increasing shortage of global fresh water resources, finding and expanding new water sources to increase the total amount of fresh water resources has become an urgent worldwide issue. Moreover, as the development and utilization of terrestrial water resources continue to increase, the amount of surface water and groundwater available for human exploitation becomes less and less, and asking for water from the sea has become a basic strategy for the development and utilization of water resources in water-scarce countries around the world. At present, the main direct seawater desalination methods at home and abroad include distillati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/00C02F103/08
CPCY02W10/37
Inventor 陈伟斌顾卫徐学仁许映军
Owner BEIJING NORMAL UNIVERSITY
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