CN201136821Y - A vortex concave aerator - Google Patents

Abstract

The utility model discloses a vortex concave aerator, which is mainly composed of a motor (5), a motor base (7) and a body (4). The aeration holes (1) are provided with cutting blades (2) on the back of the six prolate aeration holes (1), and the aeration holes (1) and the central air in the hollow shaft (6) The way is connected. Through the above settings, the utility model achieves the purpose of being able to generate a large number of tiny air bubbles.

Description

A vortex concave aerator

technical field

The utility model relates to a sewage treatment device, in particular to a vortex concave aerator.

Background technique

The existing vortex concave aerator mainly consists of a motor, a motor base, a body, a hollow shaft, a mechanical seal, and an aeration impeller. The motor of the vortex concave aerator is connected to the body through the motor base. The upper and lower ends of the body are installed with a hollow shaft passing through the body through the bearing seat and the bearing. The upper end of the hollow shaft passes through the motor base and is connected to the motor through a coupling. An aeration impeller connected to the inner cavity is installed at the end, and aeration holes are arranged on the blades of the aeration impeller. The main disadvantages of the existing vortex concave aerators are: the aeration holes on the blades of the aeration impeller are circular, and the size of the aeration holes will directly affect the air output of the aeration impeller ----- - The aeration hole is small, the aeration amount is also small, and the microbubbles produced are also small; the aeration hole is large, the aeration amount is also large, but the generated steam drum is large, and the larger the bubble, the shorter the time in the water, The air flotation effect is worse. The vortex aerator needs a large number of tiny bubbles that exist in the water for a long time, that is to say: the bubbles produced by the vortex aerator must be large in number and small in diameter.

Contents of the invention

The technical problem to be solved by the utility model is to provide a vortex concave aerator capable of generating a large number of tiny air bubbles.

In order to solve the above problems, the utility model is provided with six prolate aeration holes 1 on the aeration impeller 3, and cutting blades 2 are arranged on the backs of the six prolate aeration holes 1. The air hole 1 communicates with the central air channel in the hollow shaft 6 .

After the above-mentioned structure is adopted, the original circular design is changed to a flat and long design. When the air bubbles generated by the aeration impeller are discharged through the aeration holes on the blades, the large air bubbles will be "pinched" and split into many small air bubbles. That is, "micro-bubbles"; the original 4 aeration holes of the aeration impeller are increased to six aeration holes, which greatly increases the aeration volume. In this way, a new vortex concave aerator with large aeration volume, small bubble diameter and significantly improved air flotation effect is obtained.

Description of drawings

Now in conjunction with accompanying drawing, the utility model is further described

Fig. 1 is a schematic diagram of the overall structure of the utility model

Figure 2 is the front view of the aeration impeller

Figure 3 is the left view of the aeration impeller

In the figure 1. Aeration hole 2. Cutting blade 3. Aeration impeller 4. Body 5. Motor 6. Hollow shaft 7. Motor seat 8. Sealing device

Detailed ways

As shown in Figures 1, 2, and 3, the motor 5 of the present invention is connected to the body 4 through a motor base 7, and the upper and lower ends of the body 4 are equipped with a hollow shaft 6 passing through the body 4 through a bearing seat and a bearing. The upper end of the upper end passes through the motor base, and six oblate aeration holes 1 are arranged on the aeration impeller 3, and cutting blades 2 are arranged on the backs of the six elongated aeration holes 1, and the aeration The hole 1 communicates with the central air channel in the hollow shaft 6 .

Claims (1)

1, a kind of cavitation aerator, mainly form by motor (5), motor cabinet (7), body (4), it is characterized in that: aeration impeller (3) is provided with the solarization air cap (1) of six prolate shapes, back at the solarization air cap (1) of six prolate shapes is equipped with cut-off blade (2), and described solarization air cap (1) communicates with central airway in the tubular shaft (6).

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