CN217377434U

CN217377434U - Adjustable backflow device utilizing aeration residual gas

Info

Publication number: CN217377434U
Application number: CN202221188773.3U
Authority: CN
Inventors: 柳旭; 曹仁波; 韩潇
Original assignee: Yunnan Bengen Environmental Protection Technology Co ltd
Current assignee: Yunnan Bengen Environmental Protection Technology Co ltd
Priority date: 2022-05-17
Filing date: 2022-05-17
Publication date: 2022-09-06
Anticipated expiration: 2032-05-17

Abstract

The utility model discloses an adjustable reflux unit utilizing residual aeration gas, which is characterized by comprising a gas collecting hopper, a reflux lifting bin and a reflux pipe, wherein the reflux lifting bin is fixed on the wall of an aeration tank through a cross rod, the gas collecting hopper is fixed at the lower end of the reflux lifting bin, the reflux pipe is connected with the upper end of the reflux lifting bin and is communicated with the interior of the reflux lifting bin, and the other end of the reflux pipe extends into the reflux tank; the gas collecting hopper is communicated with the backflow lifting bin through a plurality of first gas collecting pipes, and the gas collecting hopper and the backflow lifting bin are located below the liquid level in the aeration tank. The utility model provides high oxygen suppliment fan's utilization ratio and practiced thrift the energy.

Description

Adjustable backflow device utilizing aeration residual gas

Technical Field

The utility model belongs to the technical field of sewage treatment, concretely relates to reflux unit with adjustable utilize aeration residual air.

Background

In the aerobic biochemical sewage treatment process, aeration and reflux are required simultaneously in various treatment technologies. The concentration of dissolved oxygen in water is increased by aeration, thereby improving the aerobic biochemical treatment efficiency. However, most of the gas which is not effectively dissolved in the water is discharged inefficiently, which causes the use efficiency of the oxygen supply fan to be low. Meanwhile, the backflow can be completed only by using an external energy source to provide power. Thereby causing the condition that on the one hand the efficiency of oxygen suppliment fan has been wasted, on the other hand needs extra consumption external energy to realize the backward flow.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide an adjustable reflux unit of utilizing aeration residual air for improve the utilization ratio and the energy saving of oxygen suppliment fan.

In order to solve the technical problem, the technical scheme of the utility model is that:

an adjustable reflux device utilizing aeration residual gas comprises a gas collecting hopper, a reflux lifting bin and a reflux pipe, wherein the reflux lifting bin is fixed on the wall of an aeration tank through a cross rod, the gas collecting hopper is fixed at the lower end of the reflux lifting bin, the reflux pipe is connected with the upper end of the reflux lifting bin and is communicated with the inside of the reflux lifting bin, and the other end of the reflux pipe extends into the reflux tank; the gas collecting hopper is communicated with the backflow lifting bin through a plurality of first gas collecting pipes, and the gas collecting hopper and the backflow lifting bin are located below the liquid level in the aeration tank.

In the adjustable reflux device utilizing aeration residual gas provided by the utility model, preferably, a first gas collecting ring, a second gas collecting ring and a third gas collecting ring are arranged in the gas collecting hopper; a first exhaust pipe is arranged at an acute angle where the first gas collecting ring is connected with the gas collecting hopper, a second exhaust pipe is arranged at an acute angle where the second gas collecting ring is connected with the gas collecting hopper, and a third exhaust pipe is arranged at an acute angle where the third gas collecting ring is connected with the gas collecting hopper; the first exhaust pipe, the second exhaust pipe and the third exhaust pipe penetrate through the gas collecting hopper to be connected with the second gas collecting pipe, and the second gas collecting pipe is communicated with the backflow lifting bin.

The utility model provides an utilize reflux unit with adjustable aeration residual air, preferably again, the back flow includes vertical section and slope section, the slope section is by the upper end of vertical section to the bottom of the pool slope that flows back.

The utility model provides an utilize reflux unit with adjustable aeration residual air, more preferably, first gas collection ring, second gas collection ring and third gas collection ring's interval is the same, the centre of a circle of first gas collection ring, second gas collection ring and third gas collection ring is located same straight line.

The utility model provides an utilize reflux unit with adjustable aeration residual air, further preferably, the lower tip of first blast pipe, second blast pipe and third blast pipe is provided with the stop valve.

Adopt above-mentioned technical scheme, owing to set up backward flow in the aeration tank and promoted the storehouse, gas collecting hopper and back flow, gas collecting hopper promotes the storehouse with the backward flow and passes through many first collecting pipes intercommunication, make can be collected by the gas collecting hopper with the gas that does not dissolve in the aquatic, and send to in the backward flow promotes the storehouse, under the effect of air stripping, the mixed liquid in the aeration tank is promoted to the position that is higher than aeration tank water level liquid level, and flow back to the reflux drum through the back flow in, make full use of behind the aeration residual gas and energy, the needs of good oxygen pond mixed reflux have been satisfied, and need not additionally to increase the power energy. A first gas collecting ring, a second gas collecting ring and a third gas collecting ring are arranged in the gas collecting hopper; a first exhaust pipe is arranged at an acute angle where the first gas collecting ring is connected with the gas collecting hopper, a second exhaust pipe is arranged at an acute angle where the second gas collecting ring is connected with the gas collecting hopper, and a third exhaust pipe is arranged at an acute angle where the third gas collecting ring is connected with the gas collecting hopper; and the first exhaust pipe, the second exhaust pipe and the third exhaust pipe penetrate through the gas collecting hopper to be connected with the second gas collecting pipe, and the second gas collecting pipe is communicated with the backflow lifting bin. And stop valves are arranged at the lower end parts of the first exhaust pipe, the second exhaust pipe and the third exhaust pipe, so that the stop valves on the first exhaust pipe, the second exhaust pipe and the third exhaust pipe can be opened and closed to adjust the backflow amount of the mixed water body. The utility model provides high aeration tank oxygen suppliment fan's utilization ratio and practiced thrift the energy.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is an enlarged view of A in FIG. 1;

FIG. 3 is an enlarged view of B in FIG. 2;

fig. 4 is a bottom view of the air collecting hopper of the present invention;

in the figure: 1-gas collecting hopper, 2-reflux lifting bin, 3-reflux pipe, 4-cross bar, 5-aeration tank, 6-reflux tank, 7-first gas collecting pipe, 81-first gas collecting ring, 82-second gas collecting ring, 83-third gas collecting ring, 91-first exhaust pipe, 92-second exhaust pipe, 93-third exhaust pipe, 10-second gas collecting pipe, 11-vertical section, 12-inclined section, 13-stop valve and 14-liquid level.

Detailed Description

The following describes the present invention with reference to the accompanying drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features related to the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

An adjustable reflux device utilizing aeration residual gas, as shown in figures 1-4, comprises a gas collecting hopper 1, a reflux lifting bin 2 and a reflux pipe 3, wherein the reflux lifting bin 2 is fixed on the wall of an aeration tank 5 through a cross rod 4, the gas collecting hopper 1 is fixed at the lower end of the reflux lifting bin 2, a vertical section 11 of the reflux pipe 3 is connected with the upper end of the reflux lifting bin 2 and is communicated with the interior of the reflux lifting bin 2, and an inclined section 12 of the reflux pipe 3 extends into a reflux tank 6; the gas collecting hopper 1 is communicated with the backflow lifting bin 2 through six first gas collecting pipes 7, and the gas collecting hopper 1 and the backflow lifting bin 2 are positioned below the liquid level 14 in the aeration tank 5.

A first gas collecting ring 81, a second gas collecting ring 82 and a third gas collecting ring 83 are arranged in the gas collecting hopper 1, the distances among the first gas collecting ring 81, the second gas collecting ring 82 and the third gas collecting ring 83 are the same, and the centers of circles of the first gas collecting ring 81, the second gas collecting ring 82 and the third gas collecting ring 83 are located on the same straight line. A first exhaust pipe 91 is arranged at an acute angle position where the first gas collecting ring 81 is connected with the gas collecting hopper 1, a second exhaust pipe 92 is arranged at an acute angle position where the second gas collecting ring 82 is connected with the gas collecting hopper 1, and a third exhaust pipe 93 is arranged at an acute angle position where the third gas collecting ring 83 is connected with the gas collecting hopper 1; the first exhaust pipe 91, the second exhaust pipe 92 and the third exhaust pipe 93 penetrate through the gas collecting hopper 1 and then are connected with the second gas collecting pipe 10, and the second gas collecting pipe 10 is communicated with the backflow lifting bin 2. Shutoff valves 13 are provided at the lower end portions of the first exhaust pipe 91, the second exhaust pipe 92, and the third exhaust pipe 93.

The utility model discloses a theory of operation is: the gas that is not dissolved in water in the aeration tank 5 flows upwards, is collected by the gas collecting hopper 1, enters into backward flow promotion storehouse 2 through first gas collecting pipe 7, first blast pipe 91, second blast pipe 92, third blast pipe 93 and second gas collecting pipe 10 after, forms the air stripping phenomenon to promote the mixed water body in the aeration tank 5 to the position that is higher than water level 14 in the aeration tank 5, and flow back to in the flowback tank 6 through the back flow 6. The water body of the aeration tank 5 can be refluxed without additional power. When the amount of backflow needs to be adjusted, the shutoff valves 13 on the first exhaust pipe 91, the second exhaust pipe 92, and the third exhaust pipe 93 may be individually or entirely closed to achieve the required amount of backflow.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the invention, and the scope of the invention is to be accorded the full scope of the claims.

Claims

1. An adjustable reflux device utilizing aeration residual gas is characterized by comprising a gas collecting hopper, a reflux lifting bin and a reflux pipe, wherein the reflux lifting bin is fixed on the wall of an aeration tank through a cross rod, the gas collecting hopper is fixed at the lower end of the reflux lifting bin, the reflux pipe is connected with the upper end of the reflux lifting bin and is communicated with the interior of the reflux lifting bin, and the other end of the reflux pipe extends into the reflux tank; the gas collecting hopper is communicated with the backflow lifting bin through a plurality of first gas collecting pipes, and the gas collecting hopper and the backflow lifting bin are located below the liquid level in the aeration tank.

2. The adjustable backflow device using aeration residual gas according to claim 1, wherein a first gas collecting ring, a second gas collecting ring and a third gas collecting ring are arranged in the gas collecting hopper; a first exhaust pipe is arranged at an acute angle where the first gas collecting ring is connected with the gas collecting hopper, a second exhaust pipe is arranged at an acute angle where the second gas collecting ring is connected with the gas collecting hopper, and a third exhaust pipe is arranged at an acute angle where the third gas collecting ring is connected with the gas collecting hopper; the first exhaust pipe, the second exhaust pipe and the third exhaust pipe penetrate through the gas collecting hopper to be connected with the second gas collecting pipe, and the second gas collecting pipe is communicated with the backflow lifting bin.

3. The adjustable backflow device using aeration residual air according to claim 2, wherein the backflow pipe comprises a vertical section and an inclined section, and the inclined section is inclined from the upper end of the vertical section to the bottom of the backflow pool.

4. The adjustable backflow device using aeration residual gas according to claim 3, wherein the first gas collecting ring, the second gas collecting ring and the third gas collecting ring have the same pitch, and the centers of the first gas collecting ring, the second gas collecting ring and the third gas collecting ring are located on the same straight line.

5. The adjustable backflow device using aeration residual air according to claim 4, wherein the lower end portions of the first exhaust pipe, the second exhaust pipe and the third exhaust pipe are provided with stop valves.