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Filtering membrane device capable of improving sealing performance

A filtration membrane and sealing technology, applied in the field of wastewater treatment equipment, can solve the problems of long filtration cycle and low filtration efficiency, and achieve the effect of reducing residence time, increasing filtration efficiency and improving sealing.

Pending Publication Date: 2018-08-14
中欧兴华膜技术(成都)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is: during solid-liquid separation or liquid purification operation, the filtration efficiency is low, the filtration cycle is long, etc., and a filtration membrane device with improved sealing is proposed

Method used

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  • Filtering membrane device capable of improving sealing performance
  • Filtering membrane device capable of improving sealing performance

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Such as figure 1 , figure 2 As shown, there is a filter membrane device with improved sealing, including a primary filter membrane 1, a hydrophilic filter membrane 2, and a nanofiber filter membrane 3 distributed in the cylindrical cavity 4 from top to bottom, and the inner wall of the cylindrical cavity 4 The clamping piece 6 installed symmetrically on the top, the clamping piece 6 includes fasteners distributed on the upper and lower ends of the primary filter membrane 1, the hydrophilic filter membrane 2, and the nanofiber filter membrane 3, and are located in the same primary filter membrane 1. The fasteners at the upper and lower ends of the hydrophilic filter membrane 2 and the nanofiber filter membrane 3 are distributed symmetrically; The second flow channel pipe 52) is provided between the nanofiber filter membrane 3), the lower end of the nanofiber filter membrane 3 is provided with the third flow channel pipe 53, the first flow channel pipe 51, the second fl...

Embodiment 2

[0035]This embodiment is further defined on the basis of Example 1, a U-shaped concave surface 41 is formed between the end of the primary filter 1 close to the cylindrical cavity 4 and the inner wall of the cylindrical cavity 4, the primary filter 1 The flow guide surface 11 at the center and the support surface 12 surrounding the flow guide surface 11 form an integral structure with the flow guide surface 11 and the support surface 12.

[0036] In the present embodiment, the upper surface of the primary effect filter membrane 1 is lower than the upper surface of the cylindrical cavity 4, and the U-shaped concave surface 41 formed between the edge end of the primary effect filter membrane 1 and the inner wall of the cylindrical cavity 4, the U-shaped concave surface 41 It is convenient to form a water-holding space during the filtering operation. Place a container on the U-shaped concave surface 41 that can be in close contact with the outer periphery of the primary filter mem...

Embodiment 3

[0038] This embodiment is further limited on the basis of the above embodiments, the surfaces of the primary filter membrane 1 , the hydrophilic filter membrane 2 and the nanofiber filter membrane 3 are all provided with arc-shaped protrusions. Grooves are formed between the arc-shaped protrusions, and the arc-shaped protrusions are arranged in parallel.

[0039] The setting of arc-shaped protrusions can filter and process viscous substances, and it is not easy to form concentrated material deposition on the membrane surface, speed up the permeation speed, and improve the flow condition.

[0040] In this embodiment, the arc-shaped protrusions are arranged in parallel with each other, and a flow path is formed between the two arc-shaped protrusions. At this time, the flow path will gather a large amount of water to be treated, and the corresponding The pressure also increases, which in turn promotes a rapid descent of water through the flow path, increasing the rate of settling...

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Abstract

The invention discloses a filtering membrane device capable of improving a sealing performance. The filtering membrane device capable of improving the sealing performance comprises an initial effect filtering membrane, a hydrophilic filtering membrane and a nanofiber filtering membrane sequentially distributed in a cylindrical holding chamber from top to bottom, wherein clamping pieces are symmetrically arranged on an inner wall of the cylindrical holding chamber, and comprise fastening pieces distributed on the upper ends and the lower ends of the initial effect filtering membrane, the hydrophilic filtering membrane and the nanofiber filtering membrane; the fastening pieces distributed on the upper ends and the lower ends of the initial effect filtering membrane, the hydrophilic filteringmembrane and the nanofiber filtering membrane are in symmetrical distribution; a first runner pipe is arranged between the initial effect filtering membrane and a hydrophobic filtering membrane; a second runner pipe is arranged between the hydrophobic filtering membrane and the nanofiber filtering membrane; a third runner pipe is arranged on the lower end of the nanofiber filtering membrane; thefirst runner pipe, the second runner pipe and the third runner pipe are in cross distribution. The initial effect filtering membrane, the hydrophilic filtering membrane and the nanofiber filtering membrane are arranged for forming a filtering membrane system for continuously purifying water to be treated deeply, so that the filtering efficiency is improved, and the residence time of the water on the surfaces of the filtering membranes is reduced.

Description

technical field [0001] The invention relates to the technical field of waste water treatment equipment, in particular to a filter membrane device with improved sealing. Background technique [0002] In the existing filtration equipment for solid-liquid separation, the method of plate and frame filtration is mostly used. The principle of plate and frame filtration is dead-end filtration, and concentration polarization is easy to form during the filtration process. Moreover, since the plate frame uses filter cloth as the filter medium, impurities such as macromolecular proteins and colloids in the treatment liquid cannot be removed, and the filtration efficiency is low. When strengthening the filtering operation of the liquid, the sealing performance is poor and the filtering time period is long. [0003] Based on this, a filter membrane device with improved sealing is studied and designed. Contents of the invention [0004] The technical problem to be solved by the presen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/02
CPCC02F1/001C02F1/44C02F2201/002C02F2301/08
Inventor 廖金江
Owner 中欧兴华膜技术(成都)有限公司
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