CN215049020U

CN215049020U - Rotational flow aeration device

Info

Publication number: CN215049020U
Application number: CN202120780927.7U
Authority: CN
Inventors: 刘雯婷; 刘洋平; 于金巧; 杨志鸿
Original assignee: Shandong Meiling Zhonglian Environment Engineering Co ltd
Current assignee: Shandong Meiling Zhonglian Environment Engineering Co ltd
Priority date: 2021-04-16
Filing date: 2021-04-16
Publication date: 2021-12-07
Anticipated expiration: 2031-04-16

Abstract

The utility model relates to an aeration equipment especially relates to a whirl aeration equipment. The to-be-solved technical problem of the utility model lies in providing a whirl aeration equipment, does benefit to the diffusion and the breakage of oxygen and is littleer bubble, has effectively avoided aeration equipment's jam simultaneously. The utility model discloses a kind whirl aeration equipment include: the inner wall of the cylinder is horn-shaped; an air flow leading-in groove spirally arranged along the inner wall of the cylinder body; the bulges are fixed in the airflow guide groove at intervals; the rotational flow distribution mechanism is arranged at the lower part of the cylinder body; the air inlet bent pipe is arranged below the rotational flow distribution mechanism; the tail end of the air inlet bent pipe is vertically arranged, and a water inlet is formed in the barrel at the lower part of the air inlet bent pipe.

Description

Rotational flow aeration device

Technical Field

The utility model relates to an aeration equipment especially relates to a whirl aeration equipment.

Background

In the activated sludge process, because of the process requirements, in order to enable the activated sludge to be in a suspended state in the reaction tank and enable the mixed liquid to be uniformly mixed, compressed air needs to be introduced into the reaction tank to meet the process requirements. At present, a micropore aerator and a rotational flow aerator are commonly used. The initial aeration effect of the microporous aerator is good, the oxygen utilization rate is high, but the micropores can be gradually reduced or even blocked along with the increase of the service time, and the aeration effect is seriously influenced. The cyclone aerator adopts an eccentric air inlet mode for an air inlet pipe, high-pressure air is blown in at a high speed, the aerator easily generates large vibration, and the fracture damage of the joint of the aerator and a flange or a pipeline is caused by long-term work. Meanwhile, the existing cyclone aerator is not provided with a one-way valve device, when aeration is stopped, sewage can be poured into an aeration pipeline, and the aeration pipe is blocked after long-term use.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model lies in providing a whirl aeration equipment, does benefit to the diffusion and the breakage of oxygen and is littleer bubble, has effectively avoided aeration equipment's jam simultaneously.

The utility model discloses a kind whirl aeration equipment include: the inner wall of the cylinder is horn-shaped; an air flow leading-in groove spirally arranged along the inner wall of the cylinder body; the bulges are fixed in the airflow guide groove at intervals; the rotational flow distribution mechanism is arranged at the lower part of the cylinder body; the air inlet bent pipe is arranged below the rotational flow distribution mechanism; the tail end of the air inlet bent pipe is vertically arranged, and a water inlet is formed in the barrel at the lower part of the air inlet bent pipe.

The cylinder is in a horn shape, so that oxygen diffusion is facilitated, the utilization efficiency of oxygen is improved, and the blockage of an aerator is avoided; the airflow guide grooves are distributed on the inner wall of the cylinder body from the bottom to the top of the cylinder body in a right-handed or left-handed manner, and a plurality of airflow guide grooves can be arranged on the inner wall of the cylinder body for enhancing the rotational flow effect.

Preferably, the swirling flow distribution mechanism comprises a turbine; and a main shaft fixed at the bottom of the turbine; one end of the main shaft penetrates through the air inlet bent pipe and is rotatably connected with the cylinder through a bearing.

The tip end of the turbine is positioned right above the air inlet bent pipe, and the main shaft is coaxial with the axis of the cylinder body and the axis of the tail end of the air inlet bent pipe.

Preferably, the projection has a pointed end.

Preferably, the air inlet elbow is provided with a check valve.

Prevent sewage from flowing back into the air inlet bent pipe when aeration is stopped.

When the air-flow type aerator works, air blown out of the air inlet bent pipe pushes the turbine to rotate at a high speed, sewage enters from the bottom of the aerator and is mixed with the sewage more fully, air flow thrown out of the edge of the turbine enters the air flow leading-in groove and circles around the groove to form a rotational flow, a protrusion is arranged in the air flow leading-in groove, and the air flow collides with the protrusion to form finer bubbles which can be mixed with the sewage fully.

The utility model has the advantages that: the cylinder is in a horn shape, so that oxygen diffusion is facilitated, the utilization efficiency of oxygen is improved, and the blockage of an aerator is avoided; the inner wall of the cylinder body is provided with an airflow leading-in groove and a protrusion, and when airflow forms rotational flow, the airflow collides with the protrusion to form finer bubbles which can be fully mixed with sewage.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment;

FIG. 2 is a schematic view of the half-section of FIG. 1;

in the figure: 1. a barrel; 2. an airflow introduction groove; 3. a protrusion; 4. an air inlet bent pipe; 5. a water inlet; 6. a turbine; 7. a main shaft; 8. and a bearing.

Detailed Description

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

As shown in fig. 1 and 2, the cyclone aeration apparatus of the present invention comprises: the inner wall of the cylinder body 1 is horn-shaped; an air flow leading-in groove 2 spirally arranged along the inner wall of the cylinder 1; the bulges 3 are fixed in the airflow leading-in groove 2 at intervals; a rotary flow distribution mechanism arranged at the lower part of the cylinder body 1; and an air inlet elbow 4 arranged below the rotational flow distribution mechanism; the tail end of the air inlet bent pipe 4 is vertically arranged, and a water inlet 5 is formed in the barrel 1 at the lower part of the air inlet bent pipe 4. The rotational flow distribution mechanism comprises a turbine 6; and a main shaft 7 fixed to the bottom of the turbine 6; one end of the main shaft 7 penetrates through the air inlet bent pipe 4 and is rotatably connected with the cylinder 1 through a bearing 8. The projection 3 has a pointed end. And a check valve is arranged on the air inlet bent pipe 4.

In the embodiment, the cylinder body 1 is in a horn shape, so that oxygen can be diffused, the utilization efficiency of oxygen is improved, and the blockage of an aerator is avoided; the airflow leading-in grooves 2 are distributed on the inner wall of the barrel 1 in a right-handed or left-handed manner from the bottom to the top of the barrel 1, a plurality of airflow leading-in grooves can be arranged on the inner wall of the barrel 1 for enhancing the rotational flow effect, and the air inlet bent pipe 4 is provided with a check valve which can prevent sewage from flowing back into the air inlet bent pipe 4 when aeration is stopped. The tip of the turbine 6 is positioned right above the air outlet end of the air inlet elbow 4, and the main shaft 7 is coaxial with the axis of the cylinder 1 and the axis of the tail end of the air inlet elbow 4.

The utility model discloses a use as follows: during operation, air enters the barrel through the air inlet bent pipe 1, the air blown out from the air inlet bent pipe pushes the turbine to rotate at a high speed, sewage enters the bottom of the aerator and is mixed with the sewage more fully, airflow thrown out from the edge of the turbine enters the airflow guide groove and rises along the groove in a circling mode to form a rotational flow, a protrusion is arranged in the airflow guide groove, the airflow collides with the protrusion to form finer bubbles which can be fully mixed with the sewage, and the air is blown out from the top of the barrel in a fine bubble mode.

Of course, the above description is only a preferred embodiment of the present invention, and should not be taken as limiting the scope of the embodiments of the present invention. The present invention is not limited to the above examples, and the technical field of the present invention is equivalent to the changes and improvements made in the actual range of the present invention, which should be attributed to the patent coverage of the present invention.

Claims

1. A swirl aeration apparatus, characterized by comprising:

the inner wall of the cylinder body (1) is horn-shaped;

an air flow leading-in groove (2) which is spirally arranged along the inner wall of the cylinder body (1);

the bulges (3) are fixed in the airflow guide groove (2) at intervals;

a rotary flow distribution mechanism arranged at the lower part of the cylinder body (1);

and an air inlet bent pipe (4) arranged below the cyclone distribution mechanism;

the tail end of the air inlet bent pipe (4) is vertically arranged, and a water inlet (5) is formed in the barrel (1) at the lower part of the air inlet bent pipe (4).

2. The cyclonic aeration apparatus of claim 1, wherein: the rotational flow distribution mechanism comprises a rotational flow distribution mechanism,

a turbine (6);

and a main shaft (7) fixed to the bottom of the turbine (6);

one end of the main shaft (7) penetrates through the air inlet bent pipe (4) and is rotatably connected with the cylinder body (1) through a bearing (8).

3. The cyclonic aeration apparatus of claim 1, wherein: the protrusion (3) has a pointed end.

4. The cyclonic aeration apparatus of claim 1, wherein: and a check valve is arranged on the air inlet bent pipe (4).