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Membrane distillation device and membrane distillation system having the membrane distillation device

A technology of membrane distillation and pressure regulating device, which is applied in the field of membrane distillation, can solve the problems such as the reduction of membrane flux, achieve the effect of increasing membrane flux, improving efficiency, and ensuring stable operation

Active Publication Date: 2018-06-05
ENN ENVIROTECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In view of this, the present invention proposes a membrane distillation device, which aims to solve the problem that the inner membrane in the membrane distillation device in the prior art is reduced due to concentration polarization, temperature polarization and pollution.

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  • Membrane distillation device and membrane distillation system having the membrane distillation device
  • Membrane distillation device and membrane distillation system having the membrane distillation device
  • Membrane distillation device and membrane distillation system having the membrane distillation device

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Embodiment Construction

[0023] 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.

[0024] Membrane distillation device embodiment:

[0025] see figure 1 and figure 2 , the figure shows the preferred structure of the membrane distillation...

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Abstract

The invention provides a membrane distillation device and a membrane distillation system with the membrane distillation device. Wherein, the membrane distillation device includes a housing, a hot liquid chamber arranged in the housing, a cold liquid input chamber, a cold liquid output chamber, a condensation pipe, an inner membrane, and a pressure regulating mechanism; wherein, the cold liquid input chamber and the cold liquid output chamber It is connected through the condensation pipe, and the condensation pipe is installed in the hot liquid tank; the inner film is installed in the hot liquid tank and connected to the outside of the condensation tube, and the gap between the inner film and the condensation tube forms a water channel; pressure regulation The mechanism communicates with the water production channel and is used for adjusting the pressure in the water production channel. In the present invention, by adjusting the pressure in the water production channel, a larger pressure difference is formed between the water production channel and the hot liquid tank, so that the steam in the hot liquid tank can better pass through the inner membrane and enter the water production channel to condense, increasing the pressure. The membrane flux of the inner membrane is increased, the efficiency of the membrane distillation device is improved, and the stable operation of the membrane distillation device is ensured.

Description

technical field [0001] The invention relates to the technical field of membrane distillation, in particular to a membrane distillation device and a membrane distillation system provided with the membrane distillation device. Background technique [0002] Membrane distillation (MD) is a membrane separation process combining membrane technology and evaporation process. It is one of the new membrane separation technologies and can be operated at room temperature. It has the advantages of high efficiency, energy saving, simple process, less investment, and less pollution. . [0003] The existing air-gap membrane distillation device includes a cold liquid input chamber, a cold liquid output chamber, a hot liquid chamber, a water production chamber, a condensation pipe and an inner membrane pipe. Wherein, both the hot liquid tank and the water production tank are arranged between the cold liquid input tank and the cold liquid output tank, and the hot liquid tank is arranged betwe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D61/36
CPCB01D61/366B01D2311/14
Inventor 李金国陈峰李金刚姚凯潘霞刘洪涛
Owner ENN ENVIROTECH CO LTD
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