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Sea water desalting plant processed deep in sea

A seawater, deep-seated technology, applied in osmosis/dialysis water/sewage treatment, general water supply saving, etc., can solve problems such as energy consumption, and achieve the effect of energy saving

Pending Publication Date: 2005-08-17
RES CENT FOR ECO ENVIRONMENTAL SCI THE CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, all reverse osmosis devices use a high-pressure pump to pump brine to the reverse osmosis membrane module, and use high pressure to make water pass through the membrane to produce fresh water, which consumes a lot of energy

Method used

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  • Sea water desalting plant processed deep in sea
  • Sea water desalting plant processed deep in sea
  • Sea water desalting plant processed deep in sea

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] like figure 1 shown

[0014] The pressure-resistant sealing device [1] is placed several hundred meters below the sea surface [8]. The pressure-resistant sealing device [1] is equipped with reverse osmosis equipment [2], and a high-pressure side interface [3] is connected to the pre-treatment device [6]. The pre-treatment device [6] includes an ultrafiltration device and a security filter. The other end of the device is connected to the outlet of the circulating pump [9], and the inlet [10] of the circulating pump extends out of the pressure-resistant sealing device and is sealed and connected with the pressure-resistant sealing device. Another interface [4] on the high pressure side of the reverse osmosis device [2] extends out of the pressure-resistant sealing device and is hermetically connected with the pressure-resistant sealing device [1]. The permeate outlet [5] of the reverse osmosis device [2] is connected to the water storage tank [12], the water storage tan...

Embodiment 2

[0016] like figure 2 shown.

[0017] Connect the inlet [10] of the seawater circulation pump to the outlet [4] of the reverse osmosis device [2], and the outlet of the seawater circulation pump stretches out of the pressure-resistant sealing device and is hermetically connected with the pressure-resistant sealing device [1]. Valves can be added between each component. Open all valves and start the seawater circulation pump [9]. Seawater flows through the valve [12], the pretreatment device [6], the inlet [3] of the reverse osmosis device [2], flows through the reverse osmosis membrane, and is fed by the outlet [4] of the reverse osmosis device [2], the seawater circulation pump [9] ], valve [13] flow out pressure-resistant sealing device [1], and the fresh water that sees through film is through valve [14], water storage tank [11], valve [15], and is sent out sea surface by delivery pump [7].

Embodiment 3

[0019] like image 3 shown

[0020] The pressure-resistant sealing device [17] is equipped with reverse osmosis equipment [18], ultrafiltration equipment [19], seawater circulation pump [20], fresh water output pump [21] and so on. The inlet of the seawater circulating pump [20] is connected to the valve [24], and the other end of the valve [24] is connected to the pipe to stretch out the pressure-resistant sealing device [17], and is sealingly connected with the pressure-resistant sealing device [17]. The outlet of the seawater circulation pump [20] is connected to the security filter [23], and the other end of the security filter [23] is connected to a raw liquid circulation port [30] of the ultrafiltration equipment [19], and the other end of the ultrafiltration equipment [19] Stock solution flow port [31] connects valve [25], and the other end of valve [25] connects pipe and stretches out pressure-resistant airtight container [17] and is sealed with pressure-resistant air...

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Abstract

The present invention is one sea water desalting apparatus to desalt sea water on the natural pressure of sea water. Inside one pressure-resisting sealed apparatus, there are reverse osmosis device, pre-treater, sea water circulating pump, desalted water conveying pump, etc. The pressure-resisting sealed apparatus is set below sea level in the depth with sea water pressure higher than osmotic pressure of sea water, so that the pressure of sea water is utilized to produce desalted water on the permeated liquid side of the reverse osmosis device, the desalted water conveying pump pumps the desalted water to sea surface and the sea water circulating pump updates the sea water inside the apparatus.

Description

Technical field: [0001] The invention relates to a device for desalination of seawater in deep seawater. Background technique: [0002] The salt water and the fresh water are separated by a semi-permeable membrane that only allows water molecules to pass through but not ions. Then the fresh water will seep through the membrane to the salt water side. After reaching equilibrium, the salt water level on the salt water side is higher than that on the fresh water side. fresh water surface. The pressure difference formed by this liquid level difference is called osmotic pressure. When the pressure on the brine side exceeds the osmotic pressure, water molecules will pass through the semi-permeable membrane from the brine side. This phenomenon is called reverse osmosis. [0003] At present, all reverse osmosis devices use a high-pressure pump to pump brine to the reverse osmosis membrane module, and use high pressure to make water pass through the membrane to produce fresh water,...

Claims

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Application Information

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IPC IPC(8): C02F1/44
CPCY02A20/131
Inventor 吴光夏王维娜钟慧
Owner RES CENT FOR ECO ENVIRONMENTAL SCI THE CHINESE ACAD OF SCI
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