CN214319775U

CN214319775U - MBR membrane surface cleaning device

Info

Publication number: CN214319775U
Application number: CN202022347995.2U
Authority: CN
Inventors: 于卫东; 汤向云; 程韧
Original assignee: Jiangsu Yuanmu Environment Technology Co ltd
Current assignee: Jiangsu Yuanmu Environment Technology Co ltd
Priority date: 2020-10-21
Filing date: 2020-10-21
Publication date: 2021-10-01
Anticipated expiration: 2030-10-21

Abstract

The utility model discloses a MBR membrane surface cleaning device. This MBR membrane surface cleaning device includes the membrane cisterna, and aeration equipment is installed to the membrane cisterna bottom, and aeration equipment top is provided with the membrane frame, and the interval is provided with a plurality of diaphragm in the membrane frame, is provided with first perforation aeration pipe between the adjacent diaphragm, and first perforation aeration pipe is located the well upper portion of diaphragm. The utility model discloses a MBR membrane surface cleaning device has solved the dirty stifled problem that the thing is difficult to clear away in diaphragm upside position.

Description

MBR membrane surface cleaning device

Technical Field

The utility model relates to a sewage treatment field especially relates to a MBR membrane surface cleaning device.

Background

When an MBR membrane bioreactor process is used for sewage treatment, the most difficult problem is the pollution and blockage problem of the MBR membrane, an aeration device is arranged at the bottom of the MBR membrane in a current common mode, bubbles released by the aeration device induce to generate liquid flow turbulence and instantaneous tangential shearing force, and the tangential shearing force on the surface of the membrane can prevent larger particles from depositing on the surface of the membrane to play a role in scouring the surface of the membrane, so that the pollution and blockage on the surface of the membrane can be removed, and the permeability of the membrane can be enhanced. However, in practical application, in the process of rising, the pressure of the bubbles is released, the acting force on the diaphragm is smaller and smaller, the dirt and blockage on the upper side of the diaphragm is difficult to remove, and the service life of the diaphragm is shortened.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a MBR membrane surface cleaning device which can remove the dirty blocking object at the upper side part of the membrane and prolong the service life of the membrane, aiming at the defects existing in the prior art.

In order to achieve the above object, the utility model discloses the technical scheme that MBR membrane surface cleaning device adopted is:

the utility model provides a MBR membrane surface cleaning device, includes the membrane cisterna, and aeration equipment is installed to the membrane cisterna bottom, and aeration equipment top is provided with the membrane frame, and the interval is provided with a plurality of diaphragm in the membrane frame, is provided with first perforation aeration pipe between the adjacent diaphragm, and first perforation aeration pipe is located the well upper portion of diaphragm. The first perforated aeration pipe assists in cleaning dirt and blockage at the upper side of the diaphragm, and the service life of the diaphragm is prolonged.

Preferably, adjacent first perforated aeration pipes are arranged in staggered layers. The first perforated aeration pipes which are arranged in staggered layers are matched with each other, so that the released bubbles are increased to induce and generate liquid flow turbulence and instantaneous tangential shearing force, the scouring on the surface of the upper side part of the diaphragm is increased, and the dirt and blockage at the position can be conveniently removed.

Preferably, the first perforated aeration pipe is provided with a plurality of first exhaust holes, and the first exhaust holes are symmetrically arranged at 45 degrees downwards. The first exhaust holes are symmetrically arranged at 45 degrees downwards, so that the first perforated aeration pipe is prevented from being blocked by dirt and blockage falling off from the membrane.

Preferably, the aeration device is a second perforated aeration pipe. The aeration device can also be a microporous aeration disk.

Preferably, the second perforated aerator pipe is provided with a plurality of second exhaust holes, and the second exhaust holes are symmetrically arranged at 45 degrees downwards. The second vent holes are symmetrically arranged at 45 degrees downwards, so that the second perforated aeration pipe is prevented from being blocked by dirt and blockage falling off from the diaphragm.

Compared with the prior art, the utility model, have following advantage:

in order to compensate the reduction of the acting force of the bottom aeration device on the upper side part of the membrane, the first perforated aeration pipe is arranged in the middle-upper staggered layer of the adjacent membrane, so that the scouring on the upper side part of the membrane is enhanced, the accumulation of dirt and blockage at the position is avoided, the integral permeability of the membrane is enhanced, and the service life of the membrane is prolonged.

Drawings

FIG. 1 is a schematic structural diagram of an MBR membrane surface cleaning device;

FIG. 2 is a schematic view of a first perforated aeration pipe configuration;

fig. 3 is a schematic view of a first perforated aerator tube structure.

Wherein, 1 membrane tank, 2 aeration devices (second perforated aeration pipes), 21 second exhaust holes, 3 membrane frames, 31 membranes, 4 first perforated aeration pipes and 41 first exhaust holes.

Detailed Description

The present invention will be further clarified by the following description in conjunction with the accompanying drawings, which are to be understood as illustrative only and not as limiting the scope of the invention, and modifications of the various equivalent forms of the invention by those skilled in the art after reading the present invention are within the scope defined by the appended claims.

As shown in figures 1-3, an MBR membrane surface cleaning device comprises a membrane tank 1, an aeration device 2 is arranged at the bottom of the membrane tank, the aeration device is a second perforated aeration pipe, the second perforated aeration pipe is provided with a plurality of second vent holes 21, the second vent holes are symmetrically arranged downwards at 45 degrees, the blockage of dirt blocking objects falling off the membranes on the second perforated aeration pipe is avoided, a membrane frame 3 is arranged above the second perforated aeration pipe, a plurality of membranes 31 are arranged in the membrane frame at intervals, a first perforated aeration pipe 4 is arranged between adjacent membranes, the first perforated aeration pipe is provided with a plurality of first vent holes 41, the first vent holes are symmetrically arranged downwards at 45 degrees, the blockage of dirt blocking objects falling off the membranes on the first perforated aeration pipe is avoided, the first perforated aeration pipe is positioned at the middle upper part of the membranes, the adjacent first perforated aeration pipes are arranged in a staggered manner, so as to increase the turbulence flow and instantaneous tangential shearing force induced by released bubbles, the washing to the surface of the upper side part of the membrane is increased, so that the dirt and blockage at the position can be conveniently removed.

The specific working process and principle of the MBR membrane surface cleaning device are as follows: the second perforated aeration pipe releases bubbles to wash the surface of the membrane, the second perforated aeration pipe releases bubbles to wash the surface of the upper side part of the membrane, and the two are matched to thoroughly remove the dirt and blockage on the surface of the membrane, so that the integral permeability of the membrane is enhanced, and the service life of the membrane is prolonged. The utility model has the advantages of being simple in structure and convenient in operation, can effectively clear away the whole surperficial dirty stifled thing of diaphragm.

Claims

1. The utility model provides a MBR membrane surface cleaning device which characterized in that: including the membrane tank, aeration equipment is installed to membrane tank bottom, and aeration equipment top is provided with the membrane frame, and the interval is provided with a plurality of diaphragm in the membrane frame, is provided with first perforation aeration pipe between the adjacent diaphragm, and first perforation aeration pipe is located the well upper portion of diaphragm, and adjacent first perforation aeration pipe staggered floor arranges.

2. The MBR membrane surface cleaning device of claim 1, wherein: the first perforated aeration pipe is provided with a plurality of first exhaust holes which are symmetrically arranged 45 degrees downwards.

3. The MBR membrane surface cleaning device of claim 1, wherein: the aeration device is a second perforated aeration pipe.

4. The MBR membrane surface cleaning device of claim 3, wherein: the second perforated aeration pipe is provided with a plurality of second exhaust holes which are symmetrically arranged 45 degrees downwards.