CN106830382B - A kind of ultra-fine and nano-bubble jet aerator - Google Patents

Abstract

The invention discloses an ultramicro nano bubble jet oxygenator, which comprises a cylindrical shell and a nozzle tube, wherein the cylindrical shell is sequentially provided with a connecting part, an equal diameter part and an installing part, an internal thread used for being connected with a water flow interface is arranged in the connecting part, an air inlet is positioned on the installing part, the nozzle tube comprises a connecting end tightly sleeved in the installing part, one side of the connecting end extending into the installing part is provided with a tail part in clearance fit with the installing part, the other side of the connecting end is provided with a head part exposed out of the installing part, and an annular groove communicated with the air inlet is arranged between the tail part and the connecting end. The ultramicro nano bubble jet aerator adopts a straight-line type ultralow pressure loss structure, and is large in water passing diameter and not easy to block; under the condition of not reducing the flow, the jet flow lift is basically equal to the water pump lift, the jet flow lift can be used only by being matched with a common water pump, air is naturally sucked, and the matching structure is simple and the cost is low; the device is suitable for various occasions such as aquaculture, sewage treatment, water purification, water flow generation and the like, and has a wide application range.

Description

A kind of ultra-fine and nano-bubble jet aerator

technical field

The invention relates to the technical field of nanometer aeration and oxygenation equipment, in particular to an ultramicronano bubble jet aerator.

Background technique

Nano-aeration technology is a new generation of high-efficiency energy-saving and environmental protection technology, and its application range can reach as many as 25 industries. It plays a very prominent role in water purification, disinfection and sterilization in aquaculture, and medical and health fields. Usually, bubbles with a size of 10 to tens of microns in water are called microbubbles, bubbles with a size of hundreds of nanometers or less are called nanobubbles, and the mixed state of bubbles existing in the middle of both sides is called micronano bubbles. The lower level of micro-nano bubbles is ultra-fine nano-bubbles. Ultrafine and nano-bubbles are not affected by the solubility of air in water, and are not limited by external conditions such as temperature and pressure. They can stay in water for a long time and have a significant effect of increasing the dissolved oxygen in water.

The existing nano-aeration technology mainly uses a Roots blower to press air into the gas pipeline, send it into the microporous tube, and disperse it into the water in the form of micro-bubbles. It can cause the water flow to rotate and flow up and down, so that the oxygen-rich water on the upper surface of the water is brought into the bottom layer, and the uniform oxygenation of the water body is realized. This method needs to be equipped with special equipment, and has the disadvantages of complex process structure, high cost, and easy blockage of micropores.

Contents of the invention

Aiming at the problems existing in the prior art, the present invention optimizes the internal structure of the aeration head to form a direct discharge ultra-low pressure drop aeration structure, thereby providing an ultra-micro air filter with a simple supporting structure, not easy to be blocked, and a wide range of applications. Nanobubble Jet Aerator.

In order to achieve the above object, the technical solution adopted by the present invention is: an ultra-micro nano-bubble jet aerator, including a cylindrical shell and a nozzle pipe, and the cylindrical shell is provided with a connecting part, an equal-diameter part, and a mounting part in turn. , the connection part is used to connect the high-pressure water pipe, the installation part is provided with an air inlet, the nozzle pipe includes a connection end tightly sleeved in the installation part, and the side of the connection end protruding into the installation part is provided with a clearance fit with the installation part The tail part, the other side is provided with a head exposing the installation part, and an annular groove communicating with the air inlet is provided between the tail part and the connecting end.

The inner diameter of the equal-diameter part is smaller than the inner diameter of the connecting part, and the inner diameter of the installation part is larger than the inner diameter of the isometric part. The inner diameter of the connecting end is constant, and the inner diameter gradually increases after the head connects with the connecting end.

The installation part is provided with a gas-liquid mixing chamber, one side of the gas-liquid mixing chamber is connected to the enlarged diameter part, and the other side is respectively connected to the tail part and the annular groove.

The beneficial effects of the present invention are: the ultra-micro-nano bubble jet aerator of the present invention adopts a direct-exhaust ultra-low pressure loss structure, and the large water diameter is not easy to cause blockage; , the jet head is basically the same as the water pump head, it can be used only with ordinary water pumps (such as submersible pumps, sewage pumps), natural suction, simple supporting structure, low cost; suitable for aquaculture, sewage treatment, water body purification, water body flow generation And other occasions, a wide range of applications.

Description of drawings

Fig. 1 is the structural representation of the supermicro-nano bubble jet aerator of the present invention;

Fig. 2 is a working principle diagram of the present invention.

detailed description

The present invention will be further described now in conjunction with accompanying drawing.

As shown in Figure 1-2, an ultra-fine nano-bubble jet aerator includes a cylindrical shell 1 and a nozzle tube 2, and the cylindrical shell 1 is provided with a connecting part 3, an equal-diameter part 4, and a mounting part 5 in sequence. , the connection part 3 is used to connect the high-pressure water pipe, the installation part 5 is provided with an air inlet 7, the nozzle pipe 2 includes a connection end 6 tightly sleeved in the installation part 5, and one of the connection ends 6 extends into the installation part 5 One side is provided with a tail portion 8 that fits loosely with the installation portion 5 , and the other side is provided with a head 9 that exposes the installation portion 5 , and an annular groove 10 communicating with the air inlet 7 is provided between the tail portion 8 and the connecting end 6 . The air 14 enters the annular groove 10 through the air inlet 7, and then enters the installation part 5 through the gap between the tail part 8 and the installation part 5, and forms an ultra-fine nano-bubble jet 15 at the installation part 5 and the high-pressure jet water flow 13, and the installation part 5 Air negative pressure is generated at the place, and the air 14 continues to enter the installation part 5 from the air inlet 7 .

The inner diameter of the equal-diameter portion 4 is smaller than the inner diameter of the connecting portion 3, the inner diameter of the mounting portion 5 is larger than the inner diameter of the isometric portion 4, and the isometric portion 4 and the mounting portion 5 are communicated through an enlarged diameter portion 11 whose inner diameter gradually increases, and the tail portion 8 After the inner diameter decreases gradually, it connects to the connecting end 6, and the inner diameter of the connecting end 6 is equal to the inner diameter. After the head 9 connects to the connecting end 6, the inner diameter gradually increases. The structure inside the cylindrical housing 1 is conducive to the formation of high-pressure water jet 13 , which is conducive to the interaction between high-pressure water jet 13 and air after entering the diameter-expanding part 11 , forming a structure that is conducive to the mixing of air and high-pressure water jet 13 . The inside of the cylindrical housing 1 and the nozzle pipe 2 form a direct discharge ultra-low pressure loss structure, and the large water diameter will not cause blockage.

The installation part 5 is provided with a gas-liquid mixing chamber 12 , one side of the gas-liquid mixing chamber 12 communicates with the enlarged diameter part 12 , and the other side communicates with the tail part 8 and the annular groove 10 respectively. The gas-liquid mixing chamber in a certain space is conducive to the mixing of high-pressure jet water 13 and air to form ultra-fine and nano-bubble jet 15 .

The high-pressure jet water flow 13 in the ultra-micro and nano-bubble jet aerator uses the principle of cavitation to shear the airflow into a large number of ultra-fine and nano-bubbles with extremely small diameters, thereby greatly increasing the residence time of the bubbles in water and the mass transfer area between the bubbles and water , improve the dissolved oxygen efficiency. It has practical and effective significance for fish farming and water purification.

The preferred specific embodiments of the present invention have been described in detail above. It should be understood that those skilled in the art can make many modifications and changes according to the concept of the present invention without creative work. Technical solutions that can be obtained through logical analysis, reasoning or limited experiments based on the concept of the invention should be within the scope of protection determined by the claims.

Claims (1)

1. An ultramicro nano bubble jet aerator, which is characterized in that: the nozzle comprises a cylindrical shell and a nozzle pipe, wherein the cylindrical shell is sequentially provided with a connecting part, an equal-diameter part and an installation part, the connecting part is used for connecting a high-pressure water pipe, an air inlet is formed in the installation part, the nozzle pipe comprises a connecting end tightly sleeved in the installation part, one side of the connecting end extending into the installation part is provided with a tail part in clearance fit with the installation part, the other side of the connecting end is provided with a head part exposed out of the installation part, an annular groove communicated with the air inlet is formed between the tail part and the connecting end, the inner diameter of the equal-diameter part is smaller than that of the connecting part, the inner diameter of the installation part is larger than that of the equal-diameter part, the equal-diameter part is communicated with the installation part through an expanding part with gradually increasing inner diameter, the inner diameter of the tail part is communicated with the connecting end after being gradually reduced, the inner diameter of the connecting end is constant, the inner diameter of the head part is gradually increased after being communicated with the connecting end, a gas-liquid mixing cavity is formed in the installation part, one side of the gas-liquid mixing cavity is communicated with the expanding part, and the other side is communicated with the tail part and the annular groove respectively.

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