Jet aerator

Abstract

The inside of the aeration base is divided into an air cavity and a water cavity through a partition plate, an air inlet is formed in the upper portion of the air cavity and communicated with an air blower, a water inlet is formed in the lower portion of the water cavity and communicated with a circulating water pipe, a plurality of circular holes are annularly formed in the partition plate at equal intervals, and the circular holes are communicated with the air inlet. A plurality of jet pipes are annularly arranged on the side wall of the aeration base at equal intervals, one end of each jet pipe is inserted into the aeration base to be communicated with the water cavity, the other end of each jet pipe is bent downwards, one end of each jet pipe inserted into the water cavity is provided with a nozzle, and the round holes are communicated with the jet pipes through connecting pipelines.

Description

Technical Field

[0001] The utility model relates to the technical field of water treatment, in particular to a jet aerator. Background Art

[0002] In the wastewater treatment industry, aeration is the process of forcibly transferring oxygen from the air into the liquid. Its purpose is to increase the dissolved oxygen in the water. It also effectively prevents the sinking of suspended solids within the tank, enhancing the contact between organic matter, microorganisms, and dissolved oxygen. This ensures that the microorganisms within the biological pool have sufficient dissolved oxygen to oxidize and decompose organic matter in the wastewater. Aerators are essential equipment for aerating and oxygenating water supply and drainage systems. Traditional aerators are prone to scaling during use, resulting in a shorter overall service life.

[0003] Jet aeration is a system that uses jet aerators to direct airflow or a gas-liquid mixture into an aeration tank to increase the oxygen content of the liquid. Jet aerators are neither bubble diffusers nor mechanical aerators, but rather a device somewhere in between, utilizing both bubble diffusion and hydraulic shear to achieve aeration and mixing.

[0004] However, the existing jet aerators have low strength, low power efficiency and low oxygen utilization rate. Therefore, it is necessary to develop a jet aeration device with high strength and high power efficiency to adapt to the development of sewage treatment. Utility Model Content

[0005] The purpose of the utility model is to overcome the defects of the prior art and provide a jet aerator to improve the efficiency of oxygen in the liquid phase.

[0006] To achieve the above object, the utility model proposes the following technical solution: a jet aerator, an aeration base, including an air cavity and a water cavity, an air inlet is provided above the air cavity to connect to the blower, a water inlet is provided below the water cavity to connect to the circulating water pipe, the air cavity and the water cavity are separated by a partition, and a plurality of circular holes are provided on the partition at equal intervals in a circular pattern;

[0007] Multiple jet tubes are equidistantly arranged on the side wall of the aeration base, one end of which is inserted into the aeration base and connected to the water cavity, and the other end is bent downward;

[0008] A nozzle is installed at one end of the jet tube located in the water chamber;

[0009] One end of the connecting pipe is connected to the circular hole on the partition plate, and the other end is communicated with the jet tube, so that the gas in the air cavity enters the jet tube through the connecting pipe.

[0010] Preferably, the nozzle is installed inside the jet tube and has a constricted structure.

[0011] Preferably, the nozzle is coaxially arranged with the jet tube.

[0012] Preferably, the connection point between the connecting pipeline and the jet tube is located at the nozzle.

[0013] Preferably, the number of the jet tubes is consistent with the number of the circular holes on the partition.

[0014] Preferably, the bent portion of the jet tube is a water-gas mixing zone.

[0015] Preferably, the aeration base, jet pipe, nozzle and connecting pipeline are all made of stainless steel.

[0016] Compared with the existing technology, the jet aerator disclosed by the present invention has the following beneficial effects: the overall use of stainless steel material effectively improves the overall strength, and the optimization of the power water jet nozzle and compressed air branch inlet structure to improve the mass transfer efficiency and power efficiency of oxygen in the liquid phase. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly describes the drawings required for the specific embodiments or the description of the prior art. Similar elements or parts are generally identified by similar reference numerals throughout the drawings. Elements or parts in the drawings are not necessarily drawn to scale.

[0018] Figure 1 It is a cross-sectional view of an embodiment of the utility model;

[0019] Figure 2 It is a perspective view of an embodiment of the present utility model. DETAILED DESCRIPTION

[0020] The following embodiments of the technical solution of the present invention are described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention and are therefore only examples and are not intended to limit the scope of protection of the present invention.

[0021] like Figures 1 and 2As shown, the utility model discloses a jet aerator, whose structure includes an aeration base 1 and multiple jet tubes 2. A partition 3 is provided inside the aeration base to divide its inner cavity into an air cavity 4 and a water cavity 5, wherein the air cavity is located at the top and the water cavity is located at the bottom. An air inlet 6 is provided above the air cavity to connect to the blower, and a water inlet 7 is provided below the water cavity to connect to the circulating water pipe. A plurality of circular holes are equidistantly provided on the partition, and a plurality of jet tubes are equidistantly arranged around the aeration base. One end of the jet tube is inserted into the water cavity, and a nozzle 8 is provided at the end of the end. At the same time, the end is connected to the circular hole on the partition through a connecting pipe 9, and the connection between the connecting pipe and the jet tube is located at the nozzle. The gas in the air cavity is raised through the connecting pipe into the jet tube, mixed with the water entering from the nozzle, and ejected from the other end of the jet tube.

[0022] Specifically, the aeration base, jet tube, nozzle, and connecting pipe are all made of stainless steel and are connected to each other by welding. The stainless steel material increases the overall strength of the aerator, thereby increasing its service life.

[0023] The jet tubes are preferably in eight groups, evenly arranged in eight directions around the aeration base. The number of circular holes, nozzles and connecting pipes on the synchronous baffles are all eight. This evenly arranged arrangement can ensure the stability of the aeration base during injection and avoid the entire base from tipping over due to excessive injection force on one side.

[0024] The jet tube has a horizontal section and a bent section, wherein the horizontal section is inserted into the inside of the aeration base and is used to load the nozzle and connect the air cavity. The bent section is a water vapor mixing section, which is used to fully mix the compressed air entering the horizontal section with the water body to ensure the dissolved oxygen efficiency in the clean water. At the same time, the bending method allows the water vapor to be sprayed into the water in a downward oblique manner, further increasing the dissolved oxygen rate.

[0025] The nozzle is embedded in the end of the horizontal section of the jet tube and is coaxially arranged therewith. The nozzle has a constricted structure, that is, the opening on the side close to the water cavity is large and the opening on the other side is small. The nozzle with this constricted structure allows the power water to be sprayed at a high speed, while generating negative pressure outside the nozzle, thereby automatically sucking in the compressed air in the air cavity for water vapor mixing.

[0026] The utility model discloses a jet aerator, whose working principle is as follows: the power water is pressurized by a water pump and enters the water cavity through the water inlet, the compressed air is pressurized by the blower and enters the air cavity through the air inlet, the power water is ejected from the nozzle at high speed, and negative pressure is generated around the nozzle to suck the gas in the air cavity to achieve water vapor mixing. The water-gas ratio designed for this jet aerator is 1 part of power water to 3.5 parts of compressed air. After mixing by the jet aerator, the dissolved oxygen efficiency in the clean water can be achieved at 30%.

[0027] The technical content and technical features of the present invention have been disclosed as above. However, those skilled in the art may still make various substitutions and modifications based on the teachings and disclosures of the present invention without departing from the spirit of the present invention. Therefore, the scope of protection of the present invention should not be limited to the contents disclosed in the embodiments, but should include various substitutions and modifications that do not depart from the present invention and be covered by the claims of this patent application.

Claims

1. A jet aerator, characterized in that include: The aeration base includes an air cavity and a water cavity. An air inlet is provided above the air cavity to connect to the blower, and a water inlet is provided below the water cavity to connect to the circulating water pipe. The air cavity and the water cavity are separated by a partition, and a plurality of circular holes are provided on the partition at equal intervals. Multiple jet tubes are equidistantly arranged on the side wall of the aeration base, one end of which is inserted into the aeration base and connected to the water cavity, and the other end is bent downward; A nozzle is installed at one end of the jet tube located in the water chamber; One end of the connecting pipe is connected to the circular hole on the partition plate, and the other end is communicated with the jet tube, so that the gas in the air cavity enters the jet tube through the connecting pipe.

2. The jet aerator according to claim 1, characterized in that: The nozzle is installed inside the jet pipe and has a constricted structure.

3. The jet aerator according to claim 2, characterized in that: The nozzle is coaxially arranged with the jet tube.

4. The jet aerator according to claim 2, characterized in that: The connection point between the connecting pipeline and the jet tube is located at the nozzle.

5. The jet aerator according to claim 1, characterized in that: The number of the jet tubes is consistent with the number of the circular holes on the partition.

6. The jet aerator according to claim 1, characterized in that: The bent portion of the jet tube is a water-gas mixing zone.

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