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Industrial large-scale seawater desalination technology and device

A large-scale, seawater technology, applied in seawater treatment, general water supply conservation, chemical instruments and methods, etc., can solve problems such as the inability to maintain fresh seawater, and achieve the effect of reducing energy consumption

Inactive Publication Date: 2013-07-24
荷丰(天津)化工工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0014] The patent WO 00 / 41971 also has the same problem, it cannot keep fresh sea water fed continuously and automatically, and the discharge of concentrated brine is also a problem

Method used

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  • Industrial large-scale seawater desalination technology and device
  • Industrial large-scale seawater desalination technology and device
  • Industrial large-scale seawater desalination technology and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0064] Embodiment: industrial scale seawater desalination device (see figure 1 ), characterized in that it includes a housing 18 and a hollow fiber membrane 5; the hollow fiber membrane 5 is fixedly installed in the housing 18; the housing 18 has a seawater inlet 10 and a seawater outlet 11; the hollow fiber membrane 5 is connected to fresh water Exit 12.

[0065] The hollow fiber membrane 5 is vertically or horizontally installed in the casing 18; at least one end of the hollow fiber membrane 5 is open; the open end is at normal pressure, and the pressure on the outer wall of the hollow fiber membrane 5 is at least 25 bar.

[0066] The hollow fiber membrane 5 is installed vertically in the casing 18, the top of the hollow fiber membrane 5 is opened, and the bottom is opened or sealed; the hollow fiber membrane 5 is fixed between the top flange 9 and the bottom flange 7; the top method The flange 9 is installed on the top of the housing 18 ; the bottom flange 7 is fixed on th...

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PUM

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Abstract

The invention discloses an industrial large-scale seawater desalination device which is characterized in that a reverse osmosis seawater desalination technology can be realized by using gravitational potential energy of seawater. The industrial large-scale seawater desalination device comprises a shell, end sockets at two ends of the shell and hollow fibrous membranes, wherein a seawater inlet and a seawater outlet are formed in the shell; a fresh water outlet is formed in the end socket on the top; the hollow fibrous membranes are fixed in the shell; at least one end of each hollow fibrous membrane is opened; the hollow fibrous membranes consist of microporous supporting layers and semi-permeable membrane layers; the semi-permeable membrane layers cover the surfaces of the microporous supporting layers; and the end sockets are arranged at two ends of the shell. By the device with an extremely small size, a large reverse osmosis surface area is supplied; and the industrial large-scale seawater desalination device is easy to construct, mount and maintain; two ends of the hollow fibrous membranes are fixed in opening holes of a wire mesh and are fixed by flanges formed by the wire mesh and a composite material; one hollow fibrous membrane or a bundle of hollow fibrous membranes is or are arranged in each opening hole of the wire mesh; and therefore, a large number of hollow fibrous membranes can be tidily and orderly arranged.

Description

(1) Technical field: [0001] The invention relates to a process and a device for preparing fresh water from seawater, in particular to a process and a device for desalination of seawater on an industrial scale. (2) Background technology: [0002] Much of the world lacks fresh water for human consumption and agricultural irrigation. The Gibraltar peninsula, Aruba and the very dry Middle East Qatar, UAE and Saudi Arabia, as well as countries with limited water resources only supplied by rivers such as South Africa, Spain, Namibia, Sicily and Israel all have freshwater supply problems . China is recognized by the United Nations as one of the 13 most water-poor countries in the world. The per capita fresh water resources are only 1 / 4 of the world average, and the distribution of water resources is uneven. At present, more than 400 cities in China are short of water, 110 of which are severely short of water, and the rural population who drink brackish water reaches 38.55 million...

Claims

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Application Information

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IPC IPC(8): B01D61/08B01D63/02B01D69/10B01D71/68B01D67/00C02F1/44C02F103/08
CPCY02A20/131
Inventor 汉斯·鲍斯波姆王威
Owner 荷丰(天津)化工工程有限公司
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