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Membrane distillation device and membrane distillation system

A technology of membrane distillation and membrane modules, which is applied in the field of water treatment, can solve problems such as unsatisfactory effects of extreme temperature differences and extremely poor concentrations, and achieve the goals of eliminating temperature polarization, enhancing turbulence intensity, increasing anti-pollution performance and service life Effect

Active Publication Date: 2016-01-13
ENN ENVIROTECH CO LTD
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0003] In view of this, the present invention proposes a membrane distillation device, aiming at solving the problem that the current effect of eliminating the extreme difference in concentration and temperature in the membrane distillation device is not ideal enough

Method used

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  • Membrane distillation device and membrane distillation system
  • Membrane distillation device and membrane distillation system
  • Membrane distillation device and membrane distillation system

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Embodiment Construction

[0027] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0028] Membrane distillation device embodiment:

[0029] see figure 1 with figure 2 , the figure shows the preferred structure of the membrane distillatio...

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Abstract

The invention provides a membrane distillation device and a membrane distillation system. The membrane distillation device comprises a membrane assembly and at least three sets of liquid delivery assemblies. The sets of liquid delivery assemblies are sequentially connected in the membrane assembly along the axial direction of the membrane assembly, and are used for inputting and / or outputting liquid into and / or out of the membrane assembly. According to the invention, feed liquid inlet / outlet numbers in the membrane assembly are increased; inlet / outlet positions are changed; and different inlets / outlets are switched during working, such that turbulence intensity of the feed liquid in the membrane assembly is enhanced; a membrane outer surface feed liquid concentration polarization phenomenon is reduced and eliminated; a temperature polarization phenomenon on two sides of the membrane is reduced and eliminated; a steam productivity in the membrane is improved; and membrane assembly anti-pollution capacity and service life are improved.

Description

technical field [0001] The invention relates to the technical field of water treatment, in particular to a membrane distillation device and a membrane distillation system. Background technique [0002] Membrane distillation (Membraned stillation, MD) process is a new type of desalination and desalination technology that combines membrane technology with traditional distillation technology. Compared with conventional distillation (distillation), MD operates at a lower temperature, generally operating at a temperature of about 70°C, without heating the solution to boiling, and has a large evaporation area and a small vapor space, so it can remove higher concentrations of salt and a higher desalination rate. Generally speaking, the above-mentioned membrane distillation process is carried out in the membrane module, and the membrane module generally includes a housing, a cover plate and a bottom plate connected to the housing, and a plurality of hollow membrane tubes; wherein, ...

Claims

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Application Information

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IPC IPC(8): B01D61/36B01D63/08
Inventor 李金刚姚凯潘霞李金国刘洪涛
Owner ENN ENVIROTECH CO LTD
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