KR100542865B1 - Aerator - Google Patents

Abstract

In the present invention, the air diffuser is integrally combined with the aerator body to which air is supplied through the first air supply pipe.

The air dispersing device may be configured to communicate with a second air supply pipe to which air is supplied, an air dispersing ring which is in communication with the second air supply pipe, and is installed around the lower part of the aerator body, and an air dispersing ring outside the air dispensing ring. The present invention relates to a diffuser device-integrated aerator, comprising: a diffuser installed to discharge air supplied to the second air supply pipe and the diffuser ring.

In addition, the present invention is a diffuser device is integrally combined with the aerator body to which air is supplied through the air supply pipe,

A plurality of through holes are formed on the T pipe of the aerator body in communication with the air supply pipe; The diffuser device includes a jacket that is screwed to the bottom surface of the aerator body in a state of communicating with the through hole of the T pipe, several joint pipes connecting the jacket and the T pipe to communicate with each other, and The present invention relates to a diffuser ring integrated aerator comprising a diffuser ring connected to a lower end and several diffusers located on the diffuser ring.

Aerator, diffuser, diffuser integrated aerator

Description

Diffuser integrated aerator {Aerator}

1 is a first embodiment showing an air diffuser integrated aerator according to the present invention.

2 is a longitudinal cross-sectional view of FIG.

Figure 3 is a second embodiment showing the diffuser integrated aerator according to the present invention

4 is a longitudinal cross-sectional view of FIG.

5 is a cross-sectional view of FIG.

<Explanation of symbols for the main parts of the drawings>

10: aerator body 17a ': through air 20: first air supply fan

21: second air supply fan 30: air diffuser 31: second air supply pipe

32: diffuser ring 33: diffuser 50: diffuser

51: jacket 52: joint pipe 53: acid ring

54: diffuser

The present invention relates to an underwater aerator, and more particularly, by integrating an underwater aerator and an acid generator, an oxygen diffuser integrated air capable of increasing dissolved oxygen amount, expanding oxygen diffusion range, and evenly distributing dissolved oxygen can be achieved even with an equivalent underwater motor power. It's about a radar.

In general, wastewater treatment by microorganisms is a method of gradually reducing organic matter by proliferating aerobic microorganisms that feed organic matter contained in wastewater. Here, the purifying operation by aerobic microorganisms require a cyclic composition suitable for living the microorganisms while the organic matter that is fed to the microorganisms is continuously supplied.

Therefore, there is a need for an apparatus for increasing and aerobicizing dissolved oxygen in waste water, which is referred to as an underwater aerator (or an aerator: hereinafter abbreviated as "aerator"). This aerator draws the treated water (waste water) from the upper part of the suction housing by the negative pressuer generated by the rotational force of the impeller connected to the submersible motor, and discharges it in the reverse direction in the suction direction. By discharging the air discharged into the inside of the diffuser along the discharge direction of the treated water, the dissolved oxygen is continuously maintained or increased in the treated water to create an environment for activating aerobic microorganisms.

However, since the basic performance of these aerators is limited, in order to increase the amount of dissolved oxygen in the treated water or to increase the oxygen transfer rate, it is necessary to install several aerators or replace them with large capacity aerators. High cost of operation

On the other hand, the air supply can be increased to broaden the diffusion range of oxygen and increase the dissolved oxygen in the same power, but if the air supply is too large, it will not diffuse. Cavitation (vacuum generated at the back of a rotating propeller) phenomenon occurs. Therefore, there is a limit to widen the diffusion range and increase the dissolved oxygen by simply increasing the air supply.

Accordingly, the present invention has been made to solve the conventional problems as described above, the main object of the present invention is to further integrate the diffuser attached to the inside of the main body and the diffuser attached to the outside of the main body to the same dynamic power Can inject the same or as much air as the power,

Even with the same power, it is possible to increase the amount of dissolved oxygen, evenly distribute the amount of dissolved oxygen, and increase the diffusion range of oxygen.

In particular, the present invention relates to an integrated aerator with an external diffuser that can obtain an increase in oxygen content and an oxygen diffusion rate comparable to when driven with higher power as air is simultaneously discharged from an aerator body diffuser and an external diffuser.

The first feature of the present invention for achieving the above object,

The air diffuser is integrally combined with the aerator body through which the air is supplied through the first air supply pipe,

The air dispersing device may be configured to communicate with a second air supply pipe to which air is supplied, an air dispersing ring which is in communication with the second air supply pipe, and is installed around the lower part of the aerator body, and an air dispersing ring outside the air dispensing ring. It is composed of a diffuser installed to discharge the air supplied to the second air supply pipe and the diffuser ring.

The second feature of the present invention for achieving the above object,

The air diffuser is integrally combined with the aerator body through which the air is supplied through the air supply pipe.

A plurality of through holes are formed on the T pipe of the aerator body in communication with the air supply pipe; The diffuser device includes a jacket that is screwed to the bottom surface of the aerator body in a state of communicating with the through hole of the T pipe, several joint pipes connecting the jacket and the T pipe to communicate with each other, and It is composed of a diffuser ring connected to the bottom, and several diffusers located on the diffuser ring.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a first embodiment showing the diffuser integrated aerator according to the present invention, Figure 2 is a longitudinal cross-sectional view of Figure 1, Figure 3 is a second embodiment showing a diffuser integrated aerator according to the present invention 4 is a longitudinal cross-sectional view of FIG. 3, and FIG. 5 shows a flat cross-sectional view of FIG. 3.

As shown in the accompanying drawings, the submersible aerator (submersible aerator) according to the present invention is composed of the aerator body 10 and the diffuser (30, 50) are integrally combined. Here, two embodiments are applied to the diffuser integrated aerator according to the difference of the diffuser.

First embodiment

The diffuser integrated aerator of the first embodiment is composed of an aerator body 10 and an diffuser 30 as shown in Figs.

First, the aerator body 10 includes a suction housing 11 having an inlet 11a so that the treated water 2 in the aeration tank 1 flows in, and a discharge port 12a through which the treated water is discharged to the lower portion of the suction housing. The discharge housing 12 having a, the submersible motor 14 is installed so that the shaft is directed downward on the suction housing 11 via the bracket 13, the coupling of the suction housing and the discharge housing Located in the inner space (s) formed by the axial flow impeller 15 is rotated by the power of the submersible motor, and installed in the hub of the impeller through the first air supply pipe 16 and the discharge pipe 17 The diffuser 18 is configured to allow the air to be supplied to be discharged in a fine bubble state through the diffusion port 10b formed between the bottom surface 10a.

In addition, the diffuser device 30 communicates with the second air supply pipe 31 and the second air supply pipe, and the air diffuser ring 32 is installed around the lower outside of the aerator main body 10, and the It is installed in the outside of the air ring in communication with the air ring is composed of a diffuser 33 which serves as a discharge port so that the air supplied to the second air supply pipe and the acid ring is discharged. Here, the diffuser 33 is installed in front of the discharge port (12a).

In addition, a first air supply fan 20 and a second air supply fan 21 are installed above each of the first air supply pipe 16 and the second air supply pipe 31, and the air diffuser ring 32 is an aerator. It is supported by the aerator body while seated on an elbow (L) type holder 19 fastened to the surface of the leg 10c of the body 10.

Operation of the aerator according to the first embodiment configured as described above is as follows.

The operation of the aerator according to the first embodiment includes the submersible motor 14, the first air supply fan 20 on the inlet side of the first air supply pipe 16, and the second air supply fan on the inlet side of the second air supply pipe 31. It starts with 21 being driven.

First, when the submersible motor 14 is driven, the treated water 2 is sucked from the upper portion of the suction housing 11 by the negative pressure generated while the impeller 15 directly connected thereto rotates to discharge the discharge housing 12. The water is discharged into the water through a plurality of discharge ports 12a arranged in the circumferential direction.

When the first air supply fan 20 is driven, external air is supplied to the first air supply pipe 16 by the negative pressure generated while the fan is rotated, and the air supplied to the first air supply pipe is supplied to the aerator body 10. A large bubble is discharged into the inside of the hat-shaped diffuser 18 via a discharge tube 17 installed perpendicularly to the lower side of the diffuser, and the discharged large bubble is disposed between the bottom of the diffuser 18 and the bottom surface 10a. The microbubble is discharged through the diffusion port 10b formed in the discharge port, and the microbubbles discharged through the diffusion port are discharged into the water while piggybacking on the water flow discharged through the discharge port 12a.

When the second air supply fan 21 is driven, external air is supplied to the second air supply pipe 31 by the negative pressure generated while the fan is rotated, and the air supplied to the second air supply pipe is connected to the second air supply pipe. The air is supplied throughout the air ring 32, and the air supplied to the air ring is discharged into the water through a plurality of air pipes 33 formed along the air ring.

At this time, since the diffuser 33 is located in front of the discharge port 12a of the aerator body 10, bubbles discharged through the diffuser 33 are piggybacked on the discharge water flow discharged through the discharge port 12a. As a result, secondary diffusion occurs. Therefore, as the air discharged through the discharge port 12a and the air discharged through the diffuser 33 are respectively diffused, the amount of dissolved oxygen in the treated water can be significantly increased, and the diffusion range of the air can be widened. In particular, the aerator of the first embodiment has a relatively large air supply compared with the case of using one air supply fan by using two air supply fans, and accordingly, the dissolved oxygen in the treated water can be significantly increased.

Second embodiment

The diffuser integrated aerator of the second embodiment is composed of an aerator body 10 and an diffuser 50 as shown in Figs.

First, since the aerator body 10 is almost the same as the aerator body mentioned in the first embodiment, a detailed description thereof will be omitted. However, if there is a difference, there is a difference that several through holes 17a 'are formed in the lower portion of the T pipe 17a corresponding to the discharge pipe 17 in the first embodiment. In the above description, the lower portion means a portion located below the bottom surface 10a of the aerator body 10.

In addition, the diffuser device 50 is located on the outer circumferential surface of the through hole 17a 'forming portion of the T pipe 17a and is jacketed 51 screwed to the bottom surface 10a of the aerator body 10. ) And; Several joint pipes 52 connected to an outer circumferential surface of the jacket and communicating with the jacket 51 and the T pipe 17a; A ring-shaped or split half-ring spreader ring 53 connected to the lower end of the joint pipe; It consists of several diffusers 54 located on the diffuser ring. Here, the diffuser 54 is located in front of the discharge port 12a.

In addition, unlike the first embodiment, the diffuser-integrated aerator of the second embodiment uses the first air supply pipe 16 installed in the aerator body 10 as a common air supply pipe instead of the second air supply pipe. As the air supply pipe has only one first air supply pipe 16, only one air supply fan 20 is present at the inlet side of the first air supply pipe.

Reference numeral 55 is a packing for watertightness between the jacket 51 and the T pipe 17a.

Operation of the aerator according to the second embodiment configured as described above is as follows.

The operation of the aerator according to the second embodiment starts with the submersible motor 14 and the air supply fan 20 on the inlet side of the first air supply pipe 16 being driven.

First, when the submersible motor 14 is driven, the treated water 2 is sucked from the upper portion of the suction housing 11 by the negative pressure generated while the impeller 15 directly connected thereto rotates to discharge the discharge housing 12. The water is discharged into the water through a plurality of discharge ports 12a arranged in the circumferential direction.

When the air supply fan 20 is driven, external air is supplied to the air supply pipe 16 by the negative pressure generated while the fan is rotated, and the air supplied to the air supply pipe is T pipe installed under the aerator body 10. A large bubble is discharged into the hat-shaped diffuser 18 through the 17a, and the discharged large bubbles are formed through the diffusion port 10b formed between the bottom of the diffuser and the bottom surface 10a. Saturated and discharged, the microbubbles discharged through the diffusion port is discharged into the water by piggybacking the water flow discharged through the discharge port (12a).

On the other hand, some of the air supplied to the T pipe (17a) in the above process is supplied to each joint pipe 52 through the several through holes (17a ') formed on the outer periphery of the T pipe, and supplied to the joint pipe The generated air is discharged into the water through the diffuser 54. At this time, the bubble discharged through the diffuser is secondary diffusion is made by piggybacking the discharge water flow discharged from the discharge port (12a). Therefore, as the air discharged through the discharge port 12a and the air discharged through the diffuser 54 are respectively diffused, the amount of dissolved oxygen in the treated water can be significantly increased, and the diffusion range of the air can be widened.

As described above, the present invention has the advantage of increasing the amount of dissolved oxygen in the treated water by increasing the air transfer efficiency while applying the same-power horsepower motor, and can be replaced by a large horsepower aerator to increase the oxygen transfer efficiency. This eliminates the need for installation, resulting in lower installation and operating costs.

Claims (5)

delete The air diffuser is integrally combined with the aerator body through which the air is supplied through the air supply pipe. It includes a plurality of through-holes are formed on the T pipe of the aerator body in communication with the air supply pipe, The diffuser device includes a jacket that is screwed to the bottom surface of the aerator body in a state of communicating with the through hole of the T pipe, several joint pipes connecting the jacket and the T pipe to communicate with each other, and An diffuser device-integrated aerator comprising a diffuser ring connected to a lower end and several diffusers located on the diffuser ring. The method of claim 2, And the diffuser is located in front of the discharge port of the aerator body. The method of claim 2, The diffuser ring integrated aerator, characterized in that divided. The diffuser device is integrally combined so that the diffuser is positioned in front of the discharge port of the aerator body through which the air is supplied through the first air supply pipe. The air dispersing device may be configured to communicate with a second air supply pipe to which air is supplied, an air dispersing ring in communication with the second air supply pipe, and installed around the lower portion of the aerator body, and an air dispersing ring outside the air dispensing ring. An diffuser device-integrated aerator comprising a diffuser installed to discharge the air supplied to the second air supply pipe and the diffuser ring.

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