Evaporation device and evaporation system for high-speed evaporation with multiple physical fields

An evaporation device and physical field technology, applied in seawater treatment, water/sewage treatment, heating water/sewage treatment, etc., can solve the problems of low evaporation rate, large footprint, poor weather resistance, etc., to achieve no secondary pollution, reduce Heat loss and good water absorption

Inactive Publication Date: 2019-10-25
SHANGHAI JIAO TONG UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] At present, when using clean energy for seawater desalination technology, many materials that use solar photothermal methods to convert seawater into steam have been studied, but only the materials that convert seawater into steam are

Method used

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  • Evaporation device and evaporation system for high-speed evaporation with multiple physical fields
  • Evaporation device and evaporation system for high-speed evaporation with multiple physical fields
  • Evaporation device and evaporation system for high-speed evaporation with multiple physical fields

Examples

Experimental program
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Example Embodiment

[0036] Example 1

[0037] See figure 1 with figure 2 As shown, the embodiment of the present invention provides an evaporation device that uses multiple physical fields for high-speed evaporation, including an evaporation layer, a hydrophobic heat insulation layer 2 and a power supply device 3. The evaporation layer is configured to have heating and hydrophilic properties, and the evaporation The layer is used to extend into the water to be treated, the hydrophobic heat insulation layer 2 is provided at the bottom of the evaporation layer, and the power supply device 3 is connected to the evaporation layer. Furthermore, the evaporation layer includes a heating layer 11 and a hydrophilic layer 12, and the heating layer 11 And / or light energy is converted into heat energy, the hydrophilic layer 12 is attached to one side of the heating layer 11, and the hydrophilic layer 12 is used to extend to the water to be treated and conduct the water to be treated to a position in contact wit...

Example Embodiment

[0043] Example 2

[0044] See image 3 As shown, an embodiment of the present invention provides an evaporation system, including:

[0045] The evaporation chamber 4 is provided with the evaporation device 9 and the light-transmitting area 31 of the above-mentioned embodiment 1, the light-transmitting area and the evaporation device 9 are arranged directly opposite, and the light-transmitting area is used to transmit sunlight;

[0046] The first water storage tank 5 is connected to the evaporation chamber 4, and the first water storage tank 5 is used to store the water to be treated;

[0047] Condensation heat exchange chamber 6, which is in communication with evaporation chamber 4;

[0048] The second water storage tank 7 communicates with the bottom of the condensation heat exchange chamber 6;

[0049] The negative pressure generating device 8 is used to adjust the pressure in the evaporation chamber 4. Preferably, the negative pressure generating device 8 is a vacuum pump.

[0050] Wh...

Example Embodiment

[0052] Example 3

[0053] On the basis of embodiment 2, in this embodiment, the heating layer 11 is carbon cloth, the hydrophilic layer 12 is hydrophilic fiber cloth, and the hydrophobic heat insulation layer 2 is polystyrene foam, in which the hydrophilic fiber cloth is covered Hydrophobic and heat-insulating polystyrene foam, connect the two ends of the carbon cloth with platinum electrodes to the power supply device 3, and make the heating part of the carbon cloth closely contact the hydrophilic fiber cloth by bonding, and keep the carbon cloth face up. It is placed in the sea water to be treated.

[0054] When the seawater is desalinated through the evaporation system, the radiation intensity is 1kW / m under normal light AM 1.5G 2 Under light conditions, without electric field and negative pressure (the power supply device 3 does not supply power, and the negative pressure generator 8 has no effect), the desalination rate of seawater can reach 1.5kg m -2 h -1 ; Under normal ligh...

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Abstract

The invention discloses an evaporation device and an evaporation system for high-speed evaporation with multiple physical fields and relates to the technical field of desalted water preparation. The evaporation device comprises an evaporation layer, a hydrophobic thermal-insulating layer and a power supply device, wherein the evaporation layer comprises a heating layer and a hydrophilic layer; theheating layer is used for converting electric energy and/or optical energy into heat energy; the hydrophilic layer is adhered to one side surface of the heating layer; the hydrophilic layer extends into water to be treated and is used for conducting the water to be treated to a position contacting with the heating layer; the hydrophobic thermal-insulating layer is fixed with the bottom of the evaporation layer and is positioned below the heating layer; and the power supply device is connected with the heating layer. The evaporation system is constructed by putting the evaporation device in anegative pressure environment and comprises a condensation heat exchange device. By adopting the evaporation device and the evaporation system, the evaporation velocity of seawater desalting can be increased.

Description

technical field [0001] The invention relates to the technical field of desalinated water preparation, in particular to an evaporation device and an evaporation system that utilizes various physical fields for high-speed evaporation. Background technique [0002] The shortage of fresh water resources is a severe and urgent problem faced by human beings. The fresh water that human beings rely on for survival is less than 3% of the total surface water, and with the increase of population and the pollution of the environment, fresh water resources are becoming more and more scarce. It is particularly urgent for seawater, brackish water desalination and sewage treatment and purification, which is also an important long-term and sustainable way to solve freshwater resources and protect the environment. [0003] At present, seawater desalination technologies are mainly divided into two categories: thermal method and membrane method. Among them, the low-temperature multi-effect an...

Claims

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Application Information

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IPC IPC(8): C02F1/14C02F1/04C02F103/08
CPCC02F1/04C02F1/14C02F2103/08C02F2201/009Y02A20/124Y02A20/142Y02A20/212
Inventor 刘丰华赵斌元单爱党张毅赖奕坚
Owner SHANGHAI JIAO TONG UNIV
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