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Hollow fiber membrane module capable of making membrane silks rinse and stretch in liquid, membrane filtration system and working method of membrane filtration system

A working method and fiber membrane technology, applied in the field of water treatment, can solve the problems of high power consumption of equipment and high investment in long-term maintenance costs of equipment, and achieve the effect of saving energy and low cost

Active Publication Date: 2015-10-07
HAINAN LITREE PURIFYING TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The problem to be solved by the present invention is to provide a hollow fiber membrane module that can perform membrane cleaning without relying on aeration, a membrane filtration system and its working method, and overcome the problems existing in the prior art, such as in the membranes comprising hollow fiber membrane modules. In the filtration system, when relying on aeration to clean the surface pollution of the membrane, the power consumption of the equipment is too high, and the long-term maintenance cost of the equipment is high.

Method used

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  • Hollow fiber membrane module capable of making membrane silks rinse and stretch in liquid, membrane filtration system and working method of membrane filtration system
  • Hollow fiber membrane module capable of making membrane silks rinse and stretch in liquid, membrane filtration system and working method of membrane filtration system
  • Hollow fiber membrane module capable of making membrane silks rinse and stretch in liquid, membrane filtration system and working method of membrane filtration system

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Effect test

Embodiment 1

[0058] Such as figure 1 As shown, the lower ends of a plurality of hollow fiber membrane bundles 4 are fixed in the lower end head 1 by a casting material 6 (for example, epoxy resin), and the lower ends of the hollow fiber membrane bundles 4 are opened to form an open end of the membrane bundle, and the open end of the membrane bundle is connected to the The water outlet 7 of the lower end 1 is connected, the upper end of the hollow fiber membrane bundle 4 is fixed in the telescopic mechanism 3, and the upper end of the hollow fiber membrane bundle 4 is closed, the telescopic mechanism 3 is a float structure, and the float structure includes a floating ball connected to the fixed membrane wire 3.1, the guide rod 3.2 and the reinforced floating ball 3.3 at the top, the floating ball 3.1, the guide rod 3.2 and the reinforced floating ball 3.3 at the top cooperate with the guide rod limit hole 2.1 in the upper end 2 to form a limit mechanism to control the floating ball 3.1 Dri...

Embodiment 2

[0064] Such as Figure 9As shown, the lower ends of the plurality of hollow fiber membrane bundles 4 are fixed in the lower head 1 by the casting material 6, and the lower ends of the hollow fiber membrane bundles 4 are open and communicated with the water outlet 7 of the lower head 1, and the upper ends of the hollow fiber membrane bundles 4 are fixed. In the telescopic mechanism 3, and the upper end of the hollow fiber membrane bundle 4 is closed, the telescopic mechanism 3 is a mechanical drive structure, and the mechanical drive structure is composed of a guide rod 3.2 connected with a fixed membrane wire and a drive device 3.4. The driving device 3.4 is equivalent to the driving execution part of the mechanical driving structure, and is the part that generates the driving force in the mechanical driving structure. The guide rod 3.2 is equivalent to an accessory part in the mechanical driving structure, and is a connecting piece between the driving device 3.4 and the close...

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Abstract

The invention provides a hollow fiber membrane module capable of making membrane silks rinse and stretch in liquid. The hollow fiber membrane module comprises a lower end head (1), a water outlet (7) formed in one side of the lower end head (1), an upper end head (2), a membrane silk drive mechanism arranged on one side of the upper end head (2), a hollow fiber membrane bundle (4) made of hollow fiber membrane silks and a supporting piece (5). A membrane filtration system of the hollow fiber membrane module is adopted, the simple and reliable membrane silk drive mechanism is used, the hollow fiber membrane bundle can generate stretch displacement perturbation and rinsing in the liquid, pollutant attached to a membrane surface is removed, traditional aeration is replaced, and the purpose of cleaning the hollow fiber membrane is achieved. By means of the membrane filtration system, the acquisition cost of related aeration machinery and equipment is saved, and the electricity consumption and the maintenance cost of the membrane filtration system are effectively lowered.

Description

technical field [0001] The invention relates to the field of water treatment, in particular to a hollow fiber membrane module capable of stretching and rinsing membrane filaments in liquid, a membrane filtration system and a working method thereof. Background technique [0002] Membrane separation technology has been widely used in the fields of water purification or liquid filtration and separation. In the submerged hollow fiber membrane filtration system, due to the concentration polarization phenomenon between the inside and outside of the membrane, the outer surface of the membrane will accumulate concentrated suspended matter. To reduce the filtration flow rate of the membrane, the existing technology basically uses the method of aeration, that is, inserting air into the liquid to be treated to form air bubbles to drive the disturbance of the membrane filaments and reduce the concentrated suspended matter attached to the outer surface of the membrane to achieve cleaning....

Claims

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Application Information

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IPC IPC(8): B01D63/02B01D65/02
Inventor 陈良刚陈清吕鹏飞徐娅
Owner HAINAN LITREE PURIFYING TECH CO LTD