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Membrane distillation device for seawater desalination

A technology of membrane distillation and membrane distillation, which is applied in the field of membrane separation, can solve problems such as low utilization rate of low-temperature waste heat, discharge of low-temperature waste heat, environmental heat pollution, etc., and achieve the effects of improving driving force and efficiency, promoting self-repair, and improving hydrophobic performance

Inactive Publication Date: 2018-11-23
梧州市兴能农业科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The shortage of fresh water resources in the world has become a problem of increasing concern to people. As an open source and incremental technology of water resources, seawater desalination has become an important way to solve the global water resource crisis, especially for coastal areas, but seawater desalination is an energy-intensive industry. , high energy consumption makes the cost of desalination high and economical low, and the current seawater desalination mostly uses fossil fuels, which brings huge pressure to the natural environment. Simplifying the desalination method and reducing the cost of desalination are the key issues to be solved
[0003] At present, the utilization rate of low-temperature waste heat in factories is low, and a lot of low-temperature waste heat is directly discharged, which not only causes energy waste, but also causes thermal pollution to the environment.

Method used

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  • Membrane distillation device for seawater desalination

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Embodiment 1

[0041] In this embodiment, a membrane distillation device for seawater desalination includes a hot liquid input chamber, a vacuum cooling chamber and a condenser tube. The outer layer of the device is a shell wall, and a distillation film layer is arranged inside the device. There is a hot liquid input chamber in between, and a vacuum cooling chamber inside the distillation film layer, and a condensation pipe is installed in the vacuum cooling chamber;

[0042]The shell wall is heat-resistant and light-transmitting material, cold fluid is passed through the condensation pipe, and the distillation film layer is a photothermal self-repairing superhydrophobic film; the photothermal self-repairing superhydrophobic film includes a base film, a photothermal layer, a self-repairing Repairing the superhydrophobic layer and the silver nanowire layer, the basement membrane is provided with a photothermal layer, the photothermal layer is provided with a self-repairing superhydrophobic lay...

Embodiment 2

[0057] In this embodiment, a membrane distillation device for seawater desalination includes a hot liquid input chamber, a vacuum cooling chamber and a condenser tube. The outer layer of the device is a shell wall, and a distillation film layer is arranged inside the device. There is a hot liquid input chamber in between, and a vacuum cooling chamber inside the distillation film layer, and a condensation pipe is installed in the vacuum cooling chamber;

[0058] The shell wall is heat-resistant and light-transmitting material, cold fluid is passed through the condensation pipe, and the distillation film layer is a photothermal self-repairing superhydrophobic film; the photothermal self-repairing superhydrophobic film includes a base film, a photothermal layer, a self-repairing Repairing the superhydrophobic layer and the silver nanowire layer, the basement membrane is provided with a photothermal layer, the photothermal layer is provided with a self-repairing superhydrophobic la...

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Abstract

The invention relates to a membrane distillation device for seawater desalination. The membrane distillation device comprises a hydrothermal input chamber, a vacuum cooling chamber and a condensationtube, the outer layer of the device is a shell wall, a distillation membrane layer is arranged in the device and is a superhydrophobic membrane, the hydrothermal input chamber is arranged between theshell wall and the distillation membrane layer, the vacuum cooling chamber is arranged inside the distillation membrane layer, and the condensation tube is arranged in the vacuum cooling chamber in apenetrating manner. The membrane distillation device is of a reasonable structure and has the characteristics of high distillation efficiency, good energy saving performance and stable operation.

Description

technical field [0001] The invention relates to the field of membrane separation, in particular to a membrane distillation device for desalination of seawater. Background technique [0002] The shortage of fresh water resources in the world has become a problem of increasing concern to people. As an open source and incremental technology of water resources, seawater desalination has become an important way to solve the global water resource crisis, especially for coastal areas, but seawater desalination is an energy-intensive industry. , high energy consumption makes desalination cost high and economical low, and the current seawater desalination mostly uses fossil fuels, which has brought huge pressure to the natural environment. Simplifying the desalination method and reducing the desalination cost are key issues to be solved. [0003] At present, the utilization rate of low-temperature waste heat in factories is low, and a lot of low-temperature waste heat is directly dis...

Claims

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Application Information

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IPC IPC(8): C02F1/44B01D61/36B01D69/02B01D69/10C02F103/08
CPCB01D61/364B01D61/366B01D69/02B01D69/10B01D2325/38C02F1/447C02F2103/08Y02A20/131
Inventor 潘荣德
Owner 梧州市兴能农业科技有限公司
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