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Seawater desalination method and system with nearly zero energy consumption

A zero-energy, seawater technology, applied in air conditioning systems, seawater treatment, heating methods, etc., can solve the problems of high energy consumption of evaporating seawater, inability to process seawater, and high energy consumption, saving seawater desalination energy and reducing seawater desalination costs. , The effect of reducing the cost of water production

Active Publication Date: 2022-02-08
海南月壤科技控股有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are more than 240 Chinese invention patent documents such as CN102997493B related to the production of fresh water from seawater. They all rely on commercial energy such as electricity to produce fresh water, and the energy consumption is very high, so the gain outweighs the gain
At present, the commercial air water generators on the market all use air compressors to make cold sources. Because of the need for electricity for cooling, the cost of water production is very high. Take the commercially available F20 household air water generators as an example. The power of water production is 400w, 20L of water can be produced in 24 hours, and the electricity cost is about 288 yuan / ton
It can be seen that the current air-based water production cost is too high for civil use, and it is too high for agricultural irrigation.
[0003] Chinese patent authorization announcement number CN104261499B discloses "a seawater temperature difference energy natural circulation seawater desalination device and desalination method", its vacuum pump needs to consume commodity electric energy, its evaporation It is not only limited by the size of its condenser, but also limited by weather changes. It is impossible to desalinate seawater in rainy days and nights without sunlight
All in all, the process of desalination of seawater is still relatively expensive, the main reason is that evaporating seawater consumes a lot of energy

Method used

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  • Seawater desalination method and system with nearly zero energy consumption
  • Seawater desalination method and system with nearly zero energy consumption
  • Seawater desalination method and system with nearly zero energy consumption

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0102] Such as figure 1 As shown, a seawater desalination method with almost zero energy consumption, which uses the cold seawater in the deep layer below the sea surface 1 as cold energy, and uses the water vapor contained in the warm (preferably above 18°C) sea surface tide 2 as the source of fresh water. Draw up the icy seawater in the deep layer below the sea surface 1, make it flow through the evaporator 6, and use it to cool down the evaporator 6; lead the warm sea surface moisture 2 (preferably fog) to the evaporator 6, use The evaporator 6 cools down the warm sea surface tidal air 2 , so that the water vapor contained in the warm sea surface tidal air 2 is condensed into fresh water 11 . The fresh water 11 formed by condensing the water vapor is led out from the water collector 14 to flow into the water storage tank 12 . The fresh water 11 formed by condensing the water vapor is transferred from the reservoir 12 to the water supply plant for purification treatment, so...

Embodiment 2

[0116] Such as Figure 7 , Figure 8 As shown, choose a place that is often windy, less than 5 kilometers away from the sea (because when the sea surface tide 2 spreads to the land within this distance, the tide is still large and the water yield is higher), and the altitude is less than 50m or 100m. On land (because the moisture at this altitude is the largest and the water yield is the highest), evaporators 6 are installed to build a "Great Wall" composed of tens of thousands of evaporators 6, and tens of thousands of evaporators 6 can also be erected into A (for example, 50m high) evaporation tower (big) building 27 . The evaporator 6 is naturally blown by the sea surface moisture 2 floating from the sea surface, and the fresh water 11 is generated by natural condensation, so as to avoid and reduce the power consumption of the blower fan 10 for air supply.

[0117] Such as figure 2 As shown, a seawater desalination system with almost zero energy consumption may include:...

Embodiment 3

[0123] Such as image 3 As shown, a nearly zero-energy seawater desalination system is constructed, which includes: sea, warm sea surface moisture 2, fan 10, cold seawater deep in the sea, water inlet pipe 3, water pump 5, evaporator 6, water outlet pipe 4, The water collector 14, the bypass water pipe 17 and its water valve 18, the reservoir 16 with the reservoir surface 15 higher than the sea surface 1 and its thermal insulation float 19 when the tide is low; 3. Flow through the water pump 5 or / and evaporator 6 and outlet pipe 4 to siphon into the sea; the sea, water inlet pipe 3, water pump 5 or / and evaporator 6, and outlet pipe 4 are connected to form a circulating waterway; fresh water formed by condensation of water vapor 11 is drawn out after dripping into the water collector 14.

[0124] It is desirable that a seawater desalination system with almost zero energy consumption is equipped with a bell mouth 7 wind collection device, and the bell mouth 7 of the wind collec...

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Abstract

The invention provides a seawater desalination method and system with nearly zero energy consumption, natural force is utilized to drain deep ice-cold seawater, so that the seawater flows through a heat exchanger or an evaporator to cool the evaporator; the sea surface moisture is led to the evaporator to be cooled, so that water vapor contained in the sea surface moisture is condensed into fresh water. Manual seawater evaporation, commercial power consumption and other commercial energy consumption are not needed, and cold seawater drainage does not need commercial power consumption and other commercial energy consumption. According to the invention, nearly zero-energy-consumption seawater desalination is realized, the seawater desalination energy consumption is greatly reduced, and the seawater desalination cost is greatly reduced.

Description

technical field [0001] The invention belongs to the technical field of seawater desalination, and in particular relates to a method and system for producing fresh water from seawater—a method and system for desalination of seawater with almost zero energy consumption. Background technique [0002] China's earlier invention patent literature of air water production discloses an "air water production machine (CN101929179B)", which includes a raw water storage tank, an air compressor refrigeration and dehumidification system, a raw water purification system, and a clean water storage tank; refrigeration and dehumidification The system is used to cool the moisture in the air into liquid water droplets, and the water droplets naturally drop into the raw water storage tank; the raw water purification system is used to store the purified water flowing from the raw water storage tank. There are more than 240 Chinese invention patent documents such as CN102997493B related to producin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/04F24F5/00F03D9/28C02F103/08
CPCE03B3/28Y02E10/72Y02E60/16Y02A20/124Y02A20/141Y02P80/10
Inventor 陈明发
Owner 海南月壤科技控股有限公司
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