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Membrane separation device for high-concentration feed liquid and separation method

A membrane separation and high-concentration technology, applied in semi-permeable membrane separation, chemical instruments and methods, membrane technology, etc., can solve problems such as membrane pore blockage, membrane flux reduction, membrane equipment pollution, etc., to reduce pretreatment requirements, The effect of reducing adsorption and increasing water production

Inactive Publication Date: 2012-07-25
于水利
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems of serious pollution of membrane equipment, decrease of membrane flux and clogging of membrane pores when the concentration of raw material liquid is high, the present invention further proposes a membrane separation device and separation method for high-concentration material liquid

Method used

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  • Membrane separation device for high-concentration feed liquid and separation method
  • Membrane separation device for high-concentration feed liquid and separation method
  • Membrane separation device for high-concentration feed liquid and separation method

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specific Embodiment approach 1

[0014] Specific implementation mode one: combine figure 1 Describe this embodiment mode, a membrane separation device for high-concentration feed liquid described in this embodiment mode includes a feed pump 2, a membrane module 3 and a plurality of pipelines 4, and the output end of the feed pipe 1 passes through the pipeline 4 and the circulating pump 2, the outlet of the pressurized water pipe of the circulation pump 2 is connected to the liquid inlet pipe of the membrane module 3 through the pipeline 4, the concentrated solution output end of the membrane module 3 is connected to the output end of the feed pump 1 through the pipeline 4, and the membrane The concentrated solution output end of module 3 is connected to the water inlet pipe of the next separation device through pipeline 4, and the output end of membrane module 3 is connected to the main pipeline through pipeline 4.

[0015] The membrane module 3 in this embodiment is a tubular membrane module, a coiled membra...

specific Embodiment approach 2

[0016] Specific implementation mode two: combination figure 1 To illustrate this embodiment, the high-concentration feed liquid membrane separation device described in this embodiment further includes a back pressure valve 5 installed on the concentrated liquid outlet pipe of the membrane module 3 . Other components and connections are the same as those in the first embodiment.

specific Embodiment approach 3

[0017] Specific implementation mode three: combination figure 1 To illustrate this embodiment, the membrane module 3 of a high-concentration feed-liquid membrane separation device described in this embodiment is a membrane module 3 composed of 1-1500 membrane tubes assembled in a membrane shell. Other components and connections are the same as those in the first embodiment.

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Abstract

The invention relates to a membrane separation device and a separation method, in particular to a membrane separation device for high-concentration feed liquid and a separation method. The invention aims are to solve the problems that when the concentration of raw material liquid is high, membrane equipment is seriously polluted, the membrane flux is reduced, and membrane holes are blocked. According to the invention, the output end of a feed pipe is connected with a water suction pipe of a circulating pump through a pipeline, the outlet of a water pressing pipe of the circulating pump is connected with a liquid inlet pipe of a membrane assembly by a pipeline, and the concentrated liquid output end of the membrane assembly is connected with the output end of a feed pump through pipelines. The separation steps of the invention are as follows: a plurality of membrane separation devices provided by the invention are connected in series, and the concentrated liquid output end of the membrane assembly of the first membrane separation device is connected with a water inlet pipe of the circulating pump of the next membrane separation device; the feed pump is started, feed liquid flows in membrane pipes of the membrane assemblies, and water molecules and small molecules in the feed liquid, which have dimensions being smaller than the membrane pore diameter, can pass through a membrane; and the concentrated liquid in the membrane assemblies flows out from the concentrated liquid output ends of the membrane assemblies. The membrane separation device and the separation method are applied to the separation of high-concentration raw material liquid.

Description

technical field [0001] The invention relates to a membrane separation device and a separation method, in particular to a membrane separation device and a separation method for high-concentration feed liquid. Background technique [0002] Membrane separation equipment is more and more widely used in chemical separation, water treatment, material purification and other fields. At present, the membrane equipment on the market can be roughly divided into hollow fiber membrane equipment and flat membrane equipment. Among them, hollow fiber membrane equipment can be divided into internal pressure membrane equipment and external pressure membrane equipment according to the different ways of small molecule material liquid permeating the membrane; according to the different installation positions of membrane modules, it can be divided into impregnated membrane equipment and external membrane equipment. Membrane equipment, plate membrane equipment is mostly impregnated membrane equip...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D61/00
Inventor 于水利
Owner 于水利