CN211004748U

CN211004748U - Anti-blocking MBR (membrane bioreactor) aeration pipe

Info

Publication number: CN211004748U
Application number: CN201921007507.4U
Authority: CN
Inventors: 赵开林; 邱立伟; 袁莉萍; 张尧
Original assignee: Changzhou Cheff Environmental Protection Technology Co ltd
Current assignee: Changzhou Cheff Environmental Protection Technology Co ltd
Priority date: 2019-07-01
Filing date: 2019-07-01
Publication date: 2020-07-14
Anticipated expiration: 2029-07-01

Abstract

The utility model belongs to the technical field of sewage treatment equipment, in particular to an anti-blocking MBR aeration pipe, which comprises a first connecting pipe, a pipeline, a second connecting pipe and a third connecting pipe which are connected in sequence, wherein the third connecting pipe is also connected with the first connecting pipe, the pipeline is connected end to form a closed flow path, the first connecting pipe is provided with a first valve, the third connecting pipe is provided with a second valve and a third valve in sequence, and the third connecting pipe is communicated with the outside through the third valve; the pipeline is provided with a fourth valve, a branch aerator pipe and a fifth valve in sequence, the branch aerator pipe is provided with an aeration hole, the aeration hole is a conical hole, the small end of the aeration hole faces outwards, the two ends of the branch aerator pipe are connected with the pipeline, the branch aerator pipe is provided with a first valve, a second valve, a third valve and a fourth valve in sequence, the two ends of the branch aerator pipe are communicated with the outside through the first valve and the fourth valve respectively, the first connecting pipe is located between the fourth valve and the fourth valve, and the second connecting pipe is located between the fifth valve and the first valve.

Description

Anti-blocking MBR (membrane bioreactor) aeration pipe

Technical Field

The utility model belongs to the technical field of sewage treatment device, especially, relate to a prevent blockking up MBR aeration pipe.

Background

At present most hollow fiber MBR membrane aeration all adopts annular perforation aeration pipe aeration, because MBR membrane cisterna mud concentration is high, takes place aeration pipe aeration hole to block up often, is difficult to the clearance behind the aeration hole jam, and the aeration rate reduces, leads to MBR to take place dirty stifled.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem that the aeration holes of the MBR aeration pipe are blocked frequently in the prior art, the aeration holes are difficult to clean, the utility model provides a prevent blockking up MBR aeration pipe.

In order to solve the technical problem, the technical scheme adopted by the utility model is as follows, the anti-blocking MBR aeration pipe comprises a first connecting pipe, a pipeline, a second connecting pipe and a third connecting pipe which are connected in sequence, wherein the third connecting pipe is also connected with the first connecting pipe, the pipeline is connected end to form a closed flow path, the first connecting pipe is provided with a first valve, the third connecting pipe is provided with a second valve and a third valve in sequence, and the third connecting pipe is communicated with the outside through the third valve; the pipeline is provided with a fourth valve, an aeration pipe assembly and a fifth valve in sequence, the aeration pipe assembly comprises a plurality of aeration branch pipes, aeration holes are formed in the aeration branch pipes, the aeration holes are conical holes, the small ends of the aeration holes face outwards, the two ends of each aeration branch pipe are connected with the pipeline, a first valve, a second valve, a third valve and a fourth valve are sequentially arranged on the aeration branch pipes, the two ends of each aeration branch pipe are communicated with the outside through the first valve and the fourth valve respectively, a first connecting pipe is located between the fourth valve and the fourth valve, and a second connecting pipe is located between the fifth valve and the first valve.

Preferably, the longitudinal section of the aeration branch pipe is provided with two aeration holes, and the aeration holes are positioned below the aeration branch pipe. The gas is injected into the water body downwards, so that the distance and time of the gas in the water body are increased, and the gas is favorably merged into the water body.

Preferably, the axis of the aeration hole is perpendicular to the axis of the aeration branch pipe, and the included angle between the aeration hole and the vertical direction is 45 degrees. The gas is emitted to the water body from the direction of 45 degrees, which is more beneficial to the gas to be fused into the water body.

Furthermore, the first connecting pipe, the pipeline, the second connecting pipe, the third connecting pipe and the third connecting pipe are connected through three-way pipe fittings; the aeration branch pipe is connected with the pipeline through a four-way pipe fitting.

Further, a flange is arranged at the air inlet end, away from the pipeline, of the first connecting pipe.

Has the advantages that: the utility model discloses an anti-clogging MBR aeration pipe, firstly, change the aeration hole of current aperture unanimity into big-inside little bell mouth, increase the velocity of flow of gas in aeration hole department, secondly, add the valve on the aeration pipe, through the switch switching of valve with gas, water-washed with aeration branch pipe and aeration hole wash thoroughly, prevent effectively that aeration branch pipe and aeration hole from polluting stifled; the utility model discloses a prevent blockking up MBR aeration pipe, simple structure is reliable, and the aeration rate is big.

Drawings

FIG. 1 is a schematic structural view of the anti-clogging MBR aeration pipe of the present invention;

FIG. 2 is a schematic front view of the anti-clogging MBR aeration tube of the present invention;

FIG. 3 is a schematic cross-sectional view of an aeration leg of the anti-clogging MBR aeration tube of the present invention;

FIG. 4 is a schematic diagram of the anti-clogging MBR aeration tube of the present invention;

in the figure: 1. the device comprises a first connecting pipe, a second connecting pipe, a third connecting pipe, a pipeline 5, a first valve, a second valve, a third valve, a fourth valve, a fifth valve, a pipeline 10, an aeration branch pipe 101, an aeration hole 11, a first valve 12, a second valve, a third valve 13, a third valve 14, a fourth valve, a third valve 15, a tee pipe 16, a four-way pipe 17 and a flange.

Detailed Description

Examples

As shown in fig. 1 to 4, the anti-clogging MBR aeration pipe comprises a first connecting pipe 1, a pipeline 4, a second connecting pipe 2 and a third connecting pipe 3 which are sequentially connected, wherein the third connecting pipe 3 is further connected with the first connecting pipe 1, the pipelines 4 are connected end to form a closed flow path, a first valve 5 is arranged on the first connecting pipe 1, a second valve 6 and a third valve 7 are sequentially arranged on the third connecting pipe 3, and the third connecting pipe 3 is communicated with the outside through the third valve 7;

the pipeline 4 is sequentially provided with a fourth valve 8, an aeration pipe assembly and a fifth valve 9, the aeration pipe assembly comprises a plurality of aeration branch pipes 10, aeration holes 101 are formed in the aeration branch pipes 10, in order to increase the flow rate of gas at the aeration holes 101 and increase the aeration amount, the aeration holes 101 are conical holes, the small ends of the aeration holes are outward, the longitudinal section of each aeration branch pipe 10 is provided with two aeration holes 101, and the aeration holes 101 are positioned below the aeration branch pipes 10; the axial line of the aeration hole 101 is vertical to the axial line of the aeration branch pipe 10, and the included angle between the aeration hole 101 and the vertical direction is 45 degrees; the two ends of the branch aeration pipe 10 are connected with the pipeline 4, the branch aeration pipe 10 is sequentially provided with a first valve 11, a second valve 12, a third valve 13 and a fourth valve 14, the two ends of the branch aeration pipe 10 are respectively communicated with the outside through the first valve 11 and the fourth valve 14, the first connecting pipe 1 is located between the fourth valve 8 and the fourth valve 14, and the second connecting pipe 2 is located between the fifth valve 9 and the first valve 11.

The first connecting pipe 1, the pipeline 4, the second connecting pipe 2, the third connecting pipe 3 and the third connecting pipe 3 are connected with the first connecting pipe 1 through a three-way pipe 15; the aeration branch pipe 10 is connected with the pipeline 4 through a four-way pipe fitting 16; the first connecting pipe 1 is provided with a flange 17 at the air inlet end far away from the pipeline 4.

As shown in fig. 4, the working principle is as follows:

firstly, when the MBR aeration pipe is in normal operation:

1. opening a first valve 5, a fourth valve 8, a fifth valve 9, a second valve 12 and a third valve 13; closing the second valve 6, the third valve 7, the first valve 11 and the fourth valve 14; gas enters the pipeline 4 and the aeration branch pipe 10 from the first connecting pipe 1 and then enters the water tank for aeration through the aeration holes 101 on the aeration branch pipe 10;

2. and the third valve 7 is opened periodically to be emptied, so that the function of discharging light dirt in the MBR aeration pipe to prevent blockage is realized.

Secondly, when the MBR aeration pipe is blocked:

1. firstly, opening a first valve 5, a fourth valve 8, a first valve 11, a second valve 12, a third valve 13 and a fourth valve 14, closing a second valve 6 and a third valve 7, introducing high-pressure water into the pipeline 4 and the aeration branch pipe 10 through the first connecting pipe 1, and enabling the high-pressure water to extend into the aeration branch pipe 10 for cleaning;

2. keeping opening the first valve 5, the fourth valve 8, the second valve 12, the third valve 13 and the fourth valve 14, closing the second valve 6, the third valve 7 and the first valve 11, introducing high-pressure water into the pipeline 4 and the aeration branch pipe 10 through the first connecting pipe 1, flushing the interior of the aeration branch pipe 10 by the high-pressure water, and enabling water to flow out of the aeration branch pipe 10 in the forward direction;

3. keeping opening the second valve 6, the fifth valve 9, the first valve 11, the second valve 12 and the third valve 13, closing the first valve 5, the fourth valve 8 and the fourth valve 14, introducing high-pressure water to the pipeline 4 and the aeration branch pipe 10 through the third connecting pipe 3 and the second connecting pipe 2 in sequence, flushing the interior of the aeration branch pipe 10 by the high-pressure water, and then enabling the water to flow out from the aeration branch pipe 10 in a reverse direction; the aeration branch pipes 10 and the aeration holes 101 are cleaned thoroughly by flushing the aeration branch pipes 10 forward and backward.

Claims

1. The utility model provides a prevent blockking up MBR aeration pipe which characterized in that: the pipeline comprises a first connecting pipe (1), a pipeline (4), a second connecting pipe (2) and a third connecting pipe (3) which are sequentially connected, wherein the third connecting pipe (3) is further connected with the first connecting pipe (1), the pipeline (4) is connected end to form a closed flow path, a first valve (5) is arranged on the first connecting pipe (1), a second valve (6) and a third valve (7) are sequentially arranged on the third connecting pipe (3), and the third connecting pipe (3) is communicated with the outside through the third valve (7); a fourth valve (8), an aeration pipe component and a fifth valve (9) are sequentially arranged on the pipeline (4), the aeration pipe component comprises a plurality of aeration branch pipes (10), aeration holes (101) are formed in the aeration branch pipes (10), the aeration holes (101) are conical holes, the small end of the aeration branch pipe (10) faces outwards, the two ends of the aeration branch pipe are connected with the pipeline (4), the aeration branch pipe (10) is sequentially provided with a valve I (11), a valve II (12), a valve III (13) and a valve IV (14), two ends of the aeration branch pipe (10) are respectively communicated with the outside through the first valve (11) and the fourth valve (14), the first connecting line (1) is located between the fourth valve (8) and the valve four (14), the second connecting pipe (2) is positioned between the fifth valve (9) and the first valve (11).

2. The anti-clogging MBR aerator pipe of claim 1, wherein: the longitudinal section of the aeration branch pipe (10) is provided with two aeration holes (101), and the aeration holes (101) are positioned below the aeration branch pipe (10).

3. The anti-clogging MBR aerator tube of claim 2, wherein: the axial lines of the aeration holes (101) are perpendicular to the axial lines of the aeration branch pipes (10), and the included angle between the aeration holes (101) and the vertical direction is 45 degrees.

4. The anti-clogging MBR aerator pipe of claim 1, wherein: the first connecting pipe (1), the pipeline (4), the second connecting pipe (2) and the third connecting pipe (3) are connected through a tee pipe fitting (15); the aeration branch pipe (10) is connected with the pipeline (4) through a four-way pipe fitting (16).

5. The anti-clogging MBR aerator tube of claim 1 or 4, wherein: and a flange (17) is arranged at the air inlet end of the first connecting pipe (1) far away from the pipeline (4).