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Membrane distillation process and membrane distillation device

A membrane distillation and steam technology, applied in the field of membrane distillation

Active Publication Date: 2011-06-08
艾维康有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] Another problem arises in the membrane distillation process where heat is essentially transferred by condensation and subsequent evaporation

Method used

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  • Membrane distillation process and membrane distillation device
  • Membrane distillation process and membrane distillation device
  • Membrane distillation process and membrane distillation device

Examples

Experimental program
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Embodiment Construction

[0080] exist figure 1 , figure 2 and image 3 In an embodiment, a negative pressure that reduces the absolute pressure of the liquid to be concentrated is applied to the liquid to be concentrated. In this respect, the pressure of the liquid to be concentrated can in particular be reduced to negative pressure in the distillation process. The liquid entering and exiting the negative pressure zone of the distillation process can be conveniently separated from the ambient pressure. The absolute pressure of the liquid to be concentrated can in particular be reduced to or below the boiling vapor pressure corresponding to its temperature.

[0081] In this respect, a negative pressure reducing the absolute pressure of the liquid can be applied to the liquid to be concentrated via the connecting conduit comprising a U-shaped tube. The liquid entering and exiting the negative pressure zone can be separated from the ambient pressure in particular via a U-shaped pipe built in the pip...

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Abstract

In a membrane distillation process in which a liquid to be concentrated is separated from a vapour space (11) by a vapour-permeable liquid- or water-tight membrane or membrane wall (13), to set the absolute pressure of the liquid to be concentrated a reduced pressure is imparted to this which lowers the absolute pressure of the liquid to be concentrated. A corresponding membrane distillation device is also specified.

Description

technical field [0001] The present invention relates to a membrane distillation process in which the liquid to be concentrated is separated from the vapor space by a vapor-permeable, liquid-impermeable or water-impermeable membrane or membrane wall. In addition, the present invention also relates to a membrane distillation device for implementing the above-mentioned membrane distillation method. Background technique [0002] In the distillation method, the liquid is evaporated and the vapor is condensed. Distillation is suitable for separating liquids with different vapor pressures and for separating liquids in whole or in part from salt solutions. [0003] A distillation plant that is usable, realizable and capable of implementation must be both economical and energy efficient. Distillation method is beneficial only when both conditions are met. [0004] Concentrating liquid It is in the same space as the steam and is basically under the same absolute pressure. [0005...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D3/00B01D61/36
CPCB01D63/10B01D61/364B01D61/3641B01D3/00
Inventor 沃尔夫冈·海因茨尔
Owner 艾维康有限公司