CN215161446U

CN215161446U - BAF aeration pipe

Info

Publication number: CN215161446U
Application number: CN202023309873.0U
Authority: CN
Inventors: 薛浩鹏; 潘多; 郑良锋; 王俊; 叶琦超; 毛银天; 唐攀; 吴铖坚; 张露男
Original assignee: HANGZHOU ENVIRONMENTAL GROUP CO Ltd
Current assignee: HANGZHOU ENVIRONMENTAL GROUP CO Ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-12-14
Anticipated expiration: 2030-12-31

Abstract

The utility model discloses a BAF aeration pipe belongs to the sewage treatment field, including the aeration pipeline, the aeration pipeline includes that the loop is responsible for and hangs the person in charge under water, hang the person in charge under water and be responsible for each other intercommunication with the loop, hang the top of being responsible for the setting in the loop is responsible for under water, the loop is responsible for and is equipped with aeration branch pipe, aeration branch pipe top is equipped with two rows of aeration holes, the aeration pipe is dredged to arrange according to middle dense both sides. The utility model provides the high aeration rate and the aeration degree of consistency have improved sewage treatment's effect, adopt flange joint between the pipeline, make things convenient for follow-up maintenance and maintenance.

Description

BAF aeration pipe

Technical Field

The utility model relates to a sewage treatment field, concretely relates to BAF aeration pipe.

Background

Aeration is a common method in sewage treatment and aims at forcibly increasing oxygen in sewage, so that the sewage can obtain enough dissolved oxygen, and organic matters in the tank are enhanced to contact with microorganisms and the dissolved oxygen, thereby ensuring that the microorganisms in the tank carry out oxidative decomposition on the organic matters in the sewage under the condition of sufficient dissolved oxygen. The BAF technology is applied and prosperous in European and American countries in the last 80 th century, is widely researched and applied worldwide, and is a novel sewage treatment technology by a biomembrane method. The BAF section is an important means for removing TN and NH3-N in a treatment system, and simultaneously realizes the functions of biodegradation and adsorption filtration, and the water quality of the BAF section directly influences the effluent quality.

The uniformity of aeration has an important effect on BAF. The uniform bubbles can stir the filter material layer, so that the biological membrane around the filter material is continuously in an aerobic environment, the concentration gradient of oxygen on the surface of the biological membrane can be improved, and the mass transfer efficiency of oxygen in the biological membrane is increased, thereby promoting the conversion of microorganisms to organic matters and the removal of nitrogen-containing compounds. The uneven distribution of aeration quantity can cause the anaerobic phenomenon of the tank body part and the turbulent flow of the tank body part. The pipeline layout of the existing BAF aeration pipe is unreasonable, and the arrangement of the open pores on the aeration pipe is unreasonable, so that the aeration is not uniform, and the follow-up maintenance is not convenient.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems in the prior art, the utility model provides a BAF aeration pipe.

The technical scheme of the utility model as follows: the BAF aeration pipe comprises an aeration pipeline, wherein the aeration pipeline comprises a loop main pipe and an underwater suspension main pipe, the underwater suspension main pipe is communicated with the loop main pipe, the underwater suspension main pipe is arranged above the loop main pipe, an aeration branch pipe is arranged on the loop main pipe, and an aeration hole is formed in the aeration branch pipe.

Furthermore, two rows of aeration holes are arranged above the aeration branch pipe, and the aeration holes are distributed in a sparse way according to the density in the middle and the density at two sides.

Further, the diameter of the aeration hole is 1.5 mm.

Furthermore, the underwater suspension main pipe is connected with the loop main pipe through a flange.

Furthermore, the loop main pipe is connected with two ends of the aeration branch pipe through flanges.

Furthermore, the loop main pipe comprises four sections of pipelines, and the four sections of pipelines are mutually connected into a closed loop through flanges.

Furthermore, the loop main pipe and the aeration branch pipe are arranged in the aeration tank, filter materials are arranged above the loop main pipe and the aeration branch pipe, and the distance between two ends of the aeration branch pipe and the inner wall of the aeration tank is 10 cm.

Further, the underwater suspension main pipe is connected with the fan.

The main pipeline of the utility model is a closed loop, and two rows of aeration holes with dense middle and sparse sides are arranged on the aeration branch pipe, so that the aeration quantity and the aeration uniformity are improved, and the sewage treatment effect is improved; the pipelines are connected by flanges, so that the follow-up maintenance and overhaul are facilitated.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic diagram of the detection point of the present invention;

FIG. 3 is the aeration uniformity at seven inspection points in FIG. 2;

in the figure: 1-an underwater suspension main pipe, 2-a loop main pipe, 3-an aeration branch pipe, 4-an aeration hole, 5-a flange and 6-an aeration tank.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings:

as shown in fig. 1, a BAF aeration pipe comprises an aeration pipeline, wherein the aeration pipeline comprises a loop main pipe 2 and an underwater suspension main pipe 1, the underwater suspension main pipe 1 is communicated with the loop main pipe 2 through a flange, the underwater suspension main pipe 1 is arranged above the loop main pipe 2, the loop main pipe 2 comprises four sections of pipelines, and the four sections of pipelines are mutually connected into a closed loop through flanges. Be equipped with aeration branch pipe 3 on the loop is responsible for 2, the loop is responsible for 2 and is linked together through the flange with aeration branch pipe 3's both ends, adopts flange joint, easy dismounting makes things convenient for follow-up maintenance and overhaul. Two rows of aeration holes 4 are arranged above the aeration branch pipe 3, the aeration holes 4 are arranged in a dense mode at the middle and at two sides in a sparse mode, the diameter of each aeration hole 4 is 1.5mm, aeration quantity and aeration uniformity are improved, and gas can stir sludge at the bottom of an aeration tank. The underwater suspension main pipe 1 is connected with a fan.

As shown in fig. 2-3, the loop main pipe 2 and the branch aerator pipe 3 are arranged in the aeration tank 6, filter materials are arranged above the loop main pipe 2 and the branch aerator pipe 3, and two ends of the branch aerator pipe 3 are 10cm away from the inner wall of the aeration tank 6, so that the aeration uniformity (DO) is improved, and the sludge is prevented from being brought out by bubbles violently at an air outlet. The underwater suspension main pipe 1, the loop main pipe 2 and the aeration branch pipes 3 are made of 304 stainless steel, so that the tolerance of the aeration pipes is improved, the aging rate of pipelines is reduced, and the service life is prolonged.

Claims

1. A BAF aeration pipe comprises an aeration pipeline, and is characterized in that: the aeration pipeline comprises a loop main pipe (2) and an underwater suspension main pipe (1), the underwater suspension main pipe (1) and the loop main pipe (2) are communicated with each other, the underwater suspension main pipe (1) is arranged above the loop main pipe (2), an aeration branch pipe (3) is arranged on the loop main pipe (2), and an aeration hole (4) is formed in the aeration branch pipe (3).

2. The BAF aerator of claim 1, wherein: two rows of aeration holes (4) are arranged above the aeration branch pipe (3), and the aeration holes (4) are distributed according to the density in the middle and the sparseness at two sides.

3. The BAF aerator of claim 1, wherein: the diameter of the aeration hole (4) is 1.5 mm.

4. The BAF aerator of claim 1, wherein: the underwater suspension main pipe (1) is connected with the loop main pipe (2) through a flange.

5. The BAF aerator of claim 1, wherein: the loop main pipe (2) is connected with two ends of the aeration branch pipe (3) through flanges.

6. The BAF aerator of claim 1, wherein: the loop main pipe (2) comprises four sections of pipelines which are mutually connected into a closed loop through flanges.

7. The BAF aerator of claim 1, wherein: the loop main pipe (2) and the aeration branch pipes (3) are arranged in the aeration tank, filter materials are arranged above the loop main pipe (2) and the aeration branch pipes (3), and the distance between the two ends of each aeration branch pipe (3) and the inner wall of the aeration tank is 10 cm.

8. The BAF aerator of claim 1, wherein: the underwater suspension main pipe (1) is connected with a fan.