CN110548404B

CN110548404B - Hollow fiber membrane module

Info

Publication number: CN110548404B
Application number: CN201910794743.3A
Authority: CN
Inventors: 陈泉学
Original assignee: Wuhan Aqucell Membrane Technology Co ltd
Current assignee: Wuhan Aqucell Membrane Technology Co ltd
Priority date: 2019-08-27
Filing date: 2019-08-27
Publication date: 2022-04-01
Anticipated expiration: 2039-08-27
Also published as: CN110548404A

Abstract

The invention provides a hollow fiber membrane component, which comprises a plurality of hollow fiber membrane plates, two ends and two drainage main pipes, wherein each hollow fiber membrane plate comprises a shell, a plurality of hollow fiber membranes, a partition plate, a water inlet, an aeration pipe and a sewage outlet, the hollow fiber membranes penetrate through the shell along the length direction of the shell, the edges of the partition plates are attached to the inner surface of the shell and the outer surface of the hollow fiber membranes, the partition plates are matched with the hollow fiber membranes to partition the interior of the shell into two independent spaces, each independent space is internally provided with the aeration pipe, the shells of the two independent spaces are respectively provided with the water inlet and the sewage outlet, the hollow fiber membrane plates are connected in parallel, openings at two ends of each hollow fiber membrane are respectively communicated with one end, and the two sewage outlets on the hollow fiber membrane plates are respectively communicated with one drainage main pipe, so that the hollow fiber membrane component has high-efficiency sewage treatment capacity and long-time continuous work capacity, the maintenance cost of enterprises and the personnel investment required by maintenance are reduced, and the method has a good application prospect.

Description

Hollow fiber membrane module

Technical Field

The invention relates to the technical field of sewage treatment equipment, in particular to a hollow fiber membrane module.

Background

Membrane separation technology has been widely used in the field of sewage treatment, and common membrane separation systems include shell pressurized type and submerged type.

The immersed membrane treatment system works in sewage containing a large amount of pollutants for a long time, so the surface of the immersed membrane treatment system is often influenced by the pollutants, the water flux and the treatment efficiency are reduced, the immersed membrane treatment system is also provided with an aeration structure and a liquid collecting structure, however, the aeration structure is unstable in aeration decontamination effect, the aeration structure is blocked due to excessive pollutants in the sewage in serious conditions and is difficult to aerate, and therefore, the hollow membrane module machine is required to be manually cleaned frequently, so the working efficiency of the membrane module is greatly reduced, and a large amount of labor cost is required to be invested.

Disclosure of Invention

In view of this, the invention provides a hollow fiber membrane module which has a simple structure and can efficiently remove dirt.

The technical scheme of the invention is realized as follows: the invention provides a hollow fiber membrane component, which comprises a plurality of hollow fiber membrane plates, two ends and two liquid drainage main pipes, wherein each hollow fiber membrane plate comprises a shell, a plurality of hollow fiber membranes, a partition plate, a water inlet, an aeration pipe and a sewage outlet, the hollow fiber membranes penetrate through the shell along the length direction of the shell, the edges of the partition plates are attached to the inner surface of the shell and the outer surface of the hollow fiber membranes, the partition plates are matched with the hollow fiber membranes to partition the interior of the shell into two independent spaces, each independent space is internally provided with the aeration pipe, the shells of the two independent spaces are respectively provided with the water inlet and the sewage outlet, the hollow fiber membrane plates are connected side by side, openings at two ends of each hollow fiber membrane are respectively communicated with one end, and the two sewage outlets on the hollow fiber membrane plates are respectively communicated with one liquid drainage main pipe.

On the basis of the technical scheme, preferably, the plurality of hollow fiber membranes are in the same plane, and the plane where the hollow fiber membranes are located is parallel to the plane where the hollow fiber membrane plates are located.

On the basis of the above technical solution, preferably, the water inlet is located on a side surface of the housing.

On the basis of the technical scheme, preferably, the aeration pipe penetrates through the shell and is arranged in the shell, and the length direction of the aeration pipe is parallel to the plane of the shell.

Still more preferably, the linear direction of the aeration pipe is perpendicular to the length direction of the hollow fiber membrane.

On the basis of the above technical scheme, preferably, the aeration pipe and the water inlet are respectively located at two ends of the hollow fiber membrane in the length direction.

On the basis of the above technical scheme, preferably, the aeration pipes in the two independent spaces are respectively located at two ends of the hollow fiber membrane in the length direction.

On the basis of the technical scheme, preferably, one surface of the shell is provided with at least one protrusion, and the other surface of the shell is provided with a groove at a position corresponding to the protrusion.

Compared with the prior art, the hollow fiber membrane component has the following beneficial effects:

(1) the hollow fiber membrane module is simple in structure, is formed by combining the hollow fiber membrane plates stacked in multiple layers, the end heads and the liquid discharge main pipe, the number of the hollow fiber membrane plates is adjustable, the hollow fiber membrane plates comprise two independent spaces, sewage treatment is carried out in one independent space in a working state, aeration cleaning is carried out in the other independent space, and the working continuity is high;

(2) the whole device is reasonable in structure, the purpose of selecting an independent space for work can be achieved by reversing the direction and selectively opening or closing the water inlet, the sewage draining outlet and the aeration pipe, the working stability is high, pollutants can be effectively prevented from blocking the hollow fiber membrane, and the stability of the long-time continuous work of the component is kept.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a side sectional view of a hollow fiber membrane sheet of the hollow fiber membrane module of the present invention;

FIG. 2 is a side sectional view of the hollow fiber membrane module of the present invention;

FIG. 3 is a front sectional view of a hollow fiber membrane sheet of the hollow fiber membrane module of the present invention.

In the figure: 1-hollow fiber membrane plate, 2-end, 3-drainage main pipe, 11-shell, 12-hollow fiber membrane, 13-partition, 14-water inlet, 15-aeration pipe, 16-sewage outlet, 17-independent space, 111-bulge and 112-groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

As shown in fig. 1, with reference to fig. 2 and 3, the hollow fiber membrane module of the present invention comprises a hollow fiber membrane plate 1, two ends 2 and two drainage manifolds 3, wherein the hollow fiber membrane plate 1 comprises a housing 11, a plurality of hollow fiber membranes 12, a partition 13, a water inlet 14, an aeration pipe 15 and a sewage outlet 16, the housing 11 is preferably a rectangular housing, more preferably a flat housing, the hollow fiber membranes 12 penetrate through the housing 11 along the length direction of the housing 11, the hollow fiber membranes 12 are closely contacted with the housing 11, the partition 13 is connected between the inner surface of the housing and the outer surface of the hollow fiber membranes 12, the partition 13 cooperates with the hollow fiber membranes 12 to divide the interior of the housing 11 into two independent spaces 17 completely isolated from each other, each independent space 17 is provided with an aeration pipe 15, the aeration pipe 15 is used for removing pollutants deposited on the surface of the hollow fiber membranes 12 by aeration, all be equipped with water inlet 14 and drain 16 on the casing 11 of every independent space 17 place one side, a plurality of hollow fiber membrane boards 1 superpose side by side and connect, hollow fiber membrane 12 with the opening and the 2 intercommunications of an end, the opening and the 2 intercommunications of another end of other end, the end is used for compiling the opening of hollow fiber membrane 12 and forms an opening, and two drain 16 on the hollow fiber membrane board 1 respectively communicate each other with a drainage main 3, and water inlet 14 communicates each other with outside inlet channel.

In the specific embodiment, the hollow fiber membranes 12 are all in the same plane, and the plane is parallel to the plane of the hollow fiber membrane plate 1.

In a particular embodiment, the water inlet 14 is located at a side of the housing 11.

In a specific embodiment, the aeration pipe 15 penetrates through the housing 11 and is arranged inside the housing 11, the length direction of the aeration pipe 15 is parallel to the plane of the housing 11, a plurality of aeration through holes are arranged on the aeration pipe 15 in an array manner, and pollutants deposited on the hollow fiber membrane can be washed and washed by aeration of the aeration pipe 15.

In a specific embodiment, the aeration tube 15 is disposed in a linear direction perpendicular to the longitudinal direction of the hollow fiber membranes 12.

In the above embodiment, the vertical arrangement can maximize the area occupied by the bubbles formed by the aeration pipe 15, thereby achieving the maximum scouring effect.

In a specific embodiment, the aeration pipe 15 and the water inlet 14 are respectively located at two ends of the hollow fiber membrane 12 in the length direction.

In the above embodiment, the aeration pipe 15 is to be positioned at the lowest position during aeration, and therefore the water inlet 14 and the aeration pipe 15 are provided at both ends in the longitudinal direction of the hollow fiber membranes 12.

In the embodiment, the aeration tubes 15 in the two independent spaces 17 are respectively located at both ends in the longitudinal direction of the hollow fiber membranes 12.

In the above embodiment, in order to ensure that the hollow fiber membrane module of the present invention has a more efficient effect of removing deposited stains, in the operating state, only the water inlet in one of the independent spaces 17 of the same hollow fiber membrane panel 1 is opened, the water inlet 14 in the independent space 17 on the other side is closed, at the same time, the aeration pipe 15 in the independent space 17 on the one side of the water inlet 14 is opened and does not work, and the aeration pipe in the independent space 17 on the one side of the water inlet 14 is closed and works, so that the hollow fiber membrane module of the present invention can be ensured to be always in the operating state, and the surface of the hollow fiber membrane 12 has no or only a very small amount of pollutants, when the working independent space 17 needs to be replaced, the direction of the hollow fiber membrane panel 1 is reversed, so that the operating efficiency is high, and the working continuity is good.

In a specific embodiment, one surface of the housing 11 is provided with at least one protrusion 111, the other surface of the housing 11 is provided with a groove 112 at a position corresponding to the protrusion 111, and the protrusion 111 and the groove 112 are matched with each other.

In the above embodiment, two adjacent hollow fiber membrane plates 1 are positioned and fixed by the protrusions 111 and the grooves 112, and the fixing effect is better.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. A hollow fiber membrane module is characterized by comprising a plurality of hollow fiber membrane plates (1), two ends (2) and two liquid drainage main pipes (3), wherein each hollow fiber membrane plate (1) comprises a shell (11), a plurality of hollow fiber membranes (12), a partition plate (13), a water inlet (14), an aeration pipe (15) and a sewage outlet (16), the hollow fiber membranes (12) penetrate through the shell (11) along the length direction of the shell (11), the hollow fiber membranes (12) are all in the same plane, the plane where the hollow fiber membranes (12) are located and the plane where the hollow fiber membrane plates (1) are located are parallel to each other, the hollow fiber membranes (12) and the shell (11) are in contact position and are in close fit, the partition plate (13) is connected between the inner surface of the shell and the outer surface of the hollow fiber membranes (12), the edge of the partition plate (13) is in fit with the inner surface of the shell (11) and the outer surface of the hollow fiber membranes (12), baffle (13) and hollow fiber membrane (12) cooperation are two independent spaces (17) with casing (11) inside wall, all be equipped with aeration pipe (15) in every independent space, all be equipped with water inlet (14) and drain (16) on casing (11) of two independent spaces (17), a plurality of hollow fiber membrane boards (1) are connected side by side, the opening at hollow fiber membrane (12) both ends respectively communicates each other with an end (2), two drain (16) on hollow fiber membrane board (1) respectively communicate each other with a drainage main (3).

2. The hollow fiber membrane module according to claim 1, wherein the water inlet (14) is located at a side of the housing (11).

3. The hollow fiber membrane module according to claim 1, wherein the aeration tube (15) penetrates the housing (11) and is disposed inside the housing (11), and the length direction of the aeration tube (15) is parallel to the plane of the housing (11).

4. The hollow fiber membrane module according to claim 3, wherein the aeration tube (15) is arranged in a linear direction perpendicular to the longitudinal direction of the hollow fiber membrane (12).

5. The hollow fiber membrane module according to claim 4, wherein the aeration tube (15) and the water inlet (14) are respectively located at both ends of the hollow fiber membrane (12) in the length direction.

6. The hollow fiber membrane module according to claim 5, wherein the aeration tubes (15) in the two independent spaces (17) are respectively located at both ends in the length direction of the hollow fiber membrane (12).

7. The hollow fiber membrane module according to claim 1, wherein one surface of the housing (11) is provided with at least one protrusion (111), the other surface of the housing (11) is provided with a groove (112) at a position corresponding to the protrusion (111), and the protrusion (111) and the groove (112) are matched with each other.