CN209039146U - An Improved Air Supply Type Low Pressure Jet Aerator - Google Patents

Abstract

A kind of modified Gas feeding low pressure stream aerator, including inlet tube, inlet tube one end is import, the other end is first order jet nozzle, first order jet nozzle is inserted into mixing chamber one end, first order jet nozzle front end, which is located in mixing chamber, is equipped with barrier ball, when work, mixing chamber upper end is connected to air inlet, air is passed through ejector by air inlet pipe by the air blasted using air blower, mud mixture in aeration tank is under relatively low pressure, import is pumped by circulation, into jet aerator through first order jet nozzle high speed ejection, water column is broken up by barrier ball, it is come into full contact with air, it is sprayed by secondary nozzle, in this case, air is atomized into the extremely small bubble of diameter, quickly and effectively it is transferred to liquid phase and biofacies, complete the rush transfer process of oxygen, structure is simple, it can increase Turbulent Kinetic, promote gas-liquid mixed effect, improve jet stream The working efficiency of aerator.

Description

An Improved Air Supply Type Low Pressure Jet Aerator

technical field

The utility model is designed in the technical field of water treatment, in particular to an improved air supply type low pressure jet aerator.

Background technique

Jet aeration technology is the third aeration technology that came out after air diffusion aeration technology and mechanical aeration technology. It has the advantages of high mass transfer efficiency and strong mixing and stirring, but the gas-water mixing of the existing jet aerator is not particularly sufficient, resulting in oxygenation In addition, the contact area between gas-water mixed bubbles and sewage is relatively small, resulting in low oxygen transfer efficiency, and the overall aeration effect is not very ideal, which cannot meet some high-standard aeration treatment requirements.

SUMMARY OF THE INVENTION

In order to overcome the above-mentioned deficiencies of the prior art, the purpose of the present invention is to provide an improved air supply type low pressure jet aerator, which has the characteristics of high oxygenation efficiency and high oxygen transfer efficiency.

In order to achieve the above purpose, the technical scheme adopted by the present utility model is:

An improved air supply type low-pressure jet aerator, comprising a liquid inlet pipe, one end of the liquid inlet pipe is an inlet, the other end is a primary nozzle, the primary nozzle is inserted into one end of a mixing chamber, and the front end of the primary nozzle is located in the mixing chamber and is provided with a barrier The upper end of the mixing chamber is connected to the air inlet, and the other end of the mixing chamber is a secondary nozzle.

The blocking ball is located at the center point of the mixing chamber, 30 mm away from the primary nozzle.

The primary and secondary nozzles are conical nozzles.

The air inlet is connected to the blower.

The inlet of the liquid inlet pipe is connected to the circulating water pump.

The beneficial effects of the present utility model are:

The water body is sprayed out through the first-stage nozzle jet, dispersed by the blocking ball, fully mixed with the gas in the mixing chamber, and then discharged through the second-stage nozzle. The structure is simple, which can increase the turbulent kinetic energy, promote the gas-liquid mixing effect, and improve the jet aeration. efficiency of the device.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is a gas-liquid mixing effect diagram of the utility model.

Among them, 1 is the inlet; 2 is the primary nozzle; 3 is the mixing chamber; 4 is the secondary nozzle; 5 is the air inlet; 6 is the blocking ball; 7 is the liquid inlet pipe.

Detailed ways

The utility model is further described below in conjunction with the accompanying drawings.

As shown in Figure 1, an improved air supply type low pressure jet aerator includes a liquid inlet pipe 7, one end of the liquid inlet pipe 7 is an inlet 1, the other end is a primary nozzle 2, and the primary nozzle 2 is inserted into the mixing chamber 3 At one end, the front end of the primary nozzle 2 is located in the mixing chamber 3 with a blocking ball 6 , the upper end of the mixing chamber 3 is connected to the air inlet 5 , and the other end of the mixing chamber 3 is the secondary nozzle 4 .

The blocking ball 6 is located at the center point in the mixing chamber 3 , at a distance of 30 mm from the primary nozzle 2 .

The primary nozzle 2 and the secondary nozzle 4 are conical nozzles.

The air inlet 5 is connected to the blower.

The inlet 1 of the liquid inlet pipe 7 is connected to the circulating water pump.

When the utility model works, the air blown by the blower is used to pass the air into the aerator through the air inlet pipe 5, and the mud-water mixture in the aeration tank is sent into the inlet 1 by the circulating pump under a relatively low pressure, and enters the jet aerator. The water column is sprayed out at a high speed through the primary nozzle 2, and the water column is dispersed through the blocking ball 6, fully contacting with the air, and ejected from the secondary nozzle 4. The special design makes the incoming water fully mix with the air at a lower pressure, and its energy The consumption of the air is thus much smaller than that of the traditional jet aerator; in this state, the air is atomized into bubbles with extremely small diameters, which are quickly and efficiently transferred to the liquid and biological phases to complete the rapid oxygen transfer process.

As shown in Figure 2, it is the volume cloud map of the water phase of the improved air-supplied low-pressure jet aerator. The red area in the figure represents the liquid phase area, the blue part represents the gas phase area, and the intermediate over-color area represents the gas-liquid mixing area, and the colors are different, and the proportions of the gas-liquid two phases are different. It can be clearly seen from the figure that the gas-liquid mixing effect of the new air-supplied low-pressure jet aerator is remarkable.

Claims (3)

1. a kind of modified Gas feeding low pressure stream aerator, including inlet tube (7), which is characterized in that inlet tube (7) one end is Import (1), the other end are first order jet nozzle (2), and first order jet nozzle (2) is inserted into mixing chamber (3) one end, and first order jet nozzle (2) front end is located at Barrier ball (6) is equipped in mixing chamber (3), mixing chamber (3) upper end is connected to air inlet (5), and mixing chamber (3) other end is secondary nozzle (4).

2. a kind of modified Gas feeding low pressure stream aerator according to claim 1, which is characterized in that the barrier Ball (6) is located at mixing chamber (3) interior central point, at first order jet nozzle (2) 30mm.

3. a kind of modified Gas feeding low pressure stream aerator according to claim 1, which is characterized in that the level-one Nozzle (2), secondary nozzle (4) are conical nozzle.