Multi-stage multi-channel high-speed jet aerator

Abstract

The utility model discloses a multi-stage multi-channel high-speed jet aerator which comprises a main water inlet pipe and a main air inlet pipeline, the main water inlet pipe is connected with a water inlet distribution pipe, the main air inlet pipeline is connected with an air inlet branch pipe, a plurality of water distribution nozzles are arranged on the outer side of the water inlet distribution pipe, each water distribution nozzle comprises a nozzle opening and an air suction chamber, and the nozzle opening is communicated with the air suction chamber. According to the multi-stage jet device, multiple stages of nozzles are adopted, air inflow is increased due to air inflow of an inner pipe of the first-stage nozzle, compared with a traditional jet device, the sectional area of the nozzles is reduced, the flow speed is increased, and the flow speed is increased; and the second-stage nozzle further sucks air, so that the total air inflow is increased, the mixing time of oxygen and water is prolonged through second-stage mixing, and the mixing efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment equipment, in particular to a multi-stage multi-channel high-speed jet aerator. Background Art

[0002] Jet aeration is a way of aeration and oxygenation in the aerobic section of sewage treatment. Compared with other aeration methods such as microporous aeration, submersible aeration, and surface aeration, jet aeration is almost not blocked, requires almost no maintenance during a long service life, and can provide constant, stable, and efficient oxygen supply. At a specific water depth (8 meters), the oxygenation efficiency can reach 35%, greatly reducing the operating energy consumption. Save costs. The jet aerator is generally connected to the compressed air pipeline through a link with a water pump to achieve water jetting to produce fine bubbles, and the air in the bubbles is fully in contact with the water, dissolving oxygen in the water, thereby achieving the effect of aeration.

[0003] In the jet aerators commonly used on the market, air and water cannot be in contact for a long time, so that some oxygen cannot be dissolved in water, the mixing efficiency is low, and the aeration effect of the jet aerator is affected. Utility Model Content

[0004] The purpose of the utility model is to provide a multi-stage multi-channel high-speed jet aerator to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A multi-stage multi-channel high-speed jet aerator comprises a main water inlet pipe and a main air inlet pipe, wherein the main water inlet pipe is connected to a water inlet distribution pipe, and the main air inlet pipe is connected to an air inlet branch pipe. A plurality of water distribution nozzles are arranged on the outside of the water inlet distribution pipe, and the water distribution nozzles comprise nozzles and an air suction chamber. The nozzles of the inner water distribution nozzles are inserted into the air suction chambers of the outer water distribution nozzles, and the air suction chambers are connected to the main air inlet pipe through the air inlet branch pipe.

[0007] As a further solution of the utility model: the main water inlet pipe, the water inlet distribution pipe, the main air inlet pipe, and the air inlet branch pipe are all arranged in the equipment casing.

[0008] As a further solution of the utility model: the water distribution nozzles are provided with three groups, which are distributed as primary nozzles, secondary nozzles and tertiary nozzles, and the primary nozzles, secondary nozzles and tertiary nozzles are connected in sequence.

[0009] As a further solution of the utility model: the first-level nozzle includes a first-level nozzle, one end of the first-level nozzle close to the water inlet distribution pipe is connected to the water inlet distribution pipe, and the suction chamber arranged at one end of the first-level nozzle is an air intake branch pipe in the nozzle.

[0010] As a further solution of the utility model: the outer diameter of the air intake branch pipe in the nozzle is smaller than the minimum inner diameter of the first-level nozzle, and the air intake branch pipe in the nozzle is connected to the air intake branch pipe.

[0011] As a further solution of the utility model: the secondary nozzle includes a primary air suction chamber and a secondary nozzle connected to the primary air suction chamber, the primary nozzle is inserted into the primary air suction chamber, and the primary air suction chamber is connected to the intake branch pipe.

[0012] As a further solution of the utility model: the three-stage nozzle includes a secondary air suction chamber and an air-water mixing section connected to the secondary air suction chamber, and a diffusion section is provided outside the air-water mixing section.

[0013] As a further solution of the utility model: the first-stage nozzle, the second-stage nozzle and the third-stage nozzle are each provided with six groups, and the six groups of the first-stage nozzle, the second-stage nozzle and the third-stage nozzle are arranged in a circle.

[0014] Compared with the prior art, the utility model has the following beneficial effects: the utility model adopts a multi-stage nozzle, and the air intake through the inner tube of the first-stage nozzle increases the air intake volume. Compared with the traditional ejector, the nozzle cross-sectional area is reduced and the flow rate is increased, thereby further increasing the air intake volume. The second-stage nozzle further inhales air to increase the total air intake volume, and the second-stage mixing increases the mixing time of oxygen and water, thereby improving the mixing efficiency. The multi-channel nozzle not only increases the total air intake volume, but also can ensure uniform aeration in all directions of the ejector. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the internal structure of the aeration device of this embodiment;

[0016] Figure 2 This is a top view of the aeration device of this embodiment;

[0017] In the figure: 1-main water inlet pipe, 2-water inlet distribution pipe, 3-main air inlet pipe, 4-air inlet branch pipe, 5-first-stage nozzle, 6-air inlet branch pipe in the nozzle, 7-first-stage suction chamber, 8-second-stage nozzle, 9-second-stage suction chamber, 10-gas-water mixing section, 11-expansion section, 12-equipment casing. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-2In an embodiment of the utility model, a multi-stage multi-channel high-speed jet aerator includes an equipment housing 12 and a main water inlet pipe 1 and a main air inlet pipe 3 arranged in the equipment housing 12. The main water inlet pipe 1 is connected to a water inlet distribution pipe 2, and the main air inlet pipe 3 is connected to an air inlet branch pipe 4. A plurality of water distribution nozzles are arranged on the outside of the water inlet distribution pipe 2. The water distribution nozzle includes a nozzle and an air suction chamber. The nozzle of the inner water distribution nozzle is inserted into the air suction chamber of the outer water distribution nozzle, and the air suction chamber is connected to the main air inlet pipe 3 through the air inlet branch pipe 4.

[0020] In this embodiment, the water distribution nozzles are provided with three groups, which are distributed as primary nozzles, secondary nozzles, and tertiary nozzles. The primary nozzles, secondary nozzles, and tertiary nozzles are provided with six groups each. The six groups of primary nozzles, secondary nozzles, and tertiary nozzles are arranged circumferentially, and the primary nozzles, secondary nozzles, and tertiary nozzles are connected in sequence. The primary nozzle includes a primary nozzle 5, and one end of the primary nozzle 5 close to the water inlet distribution pipe 2 is connected to the water inlet distribution pipe 2. The suction chamber provided at one end of the primary nozzle 5 is an air intake branch pipe 6 in the nozzle. The outer diameter of the air intake branch pipe 6 in the nozzle is smaller than the minimum inner diameter of the primary nozzle 5, and the air intake branch pipe 6 in the nozzle is connected to the air intake branch pipe 4. The secondary nozzle includes a primary suction chamber 7 and a secondary nozzle 8 connected to the primary suction chamber 7. The primary nozzle 5 is plugged into the primary suction chamber 7, and the primary suction chamber 7 is connected to the air intake branch pipe 4. The tertiary nozzle includes a secondary suction chamber 9 and an air-water mixing section 10 connected to the secondary suction chamber 9. The air-water mixing section 10 is provided with a diffuser section 11 outside.

[0021] When the utility model is in use, after the liquid enters the ejector from the main water inlet pipe 1, it enters the six primary nozzles 5 through the water inlet distribution pipe 2 and is ejected. The air intake branch pipe 6 in the nozzle is located in the primary nozzle 5, which reduces the nozzle cross-section and increases the nozzle flow rate, thereby increasing the suction volume. The air intake branch pipe 6 in the nozzle also intakes air to further increase the intake volume. Negative pressure is generated in the primary suction chamber 7, and air is sucked in through the air intake branch pipe 4, and then gas-water mixing is carried out in the secondary nozzle 8. The gas-water mixture is ejected through the secondary nozzle 8, and negative pressure is generated in the secondary suction chamber 9. Air is sucked in through the air intake branch pipe, and then mixed in the gas-water mixing section, and finally ejected from the expansion section.

[0022] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0023] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A multi-stage multi-channel high-speed jet aerator, comprising a main water inlet pipe (1) and a main air inlet pipe (3), wherein the main water inlet pipe (1) is connected to a water inlet distribution pipe (2), and the main air inlet pipe (3) is connected to an air inlet branch pipe (4), characterized in that: A plurality of water distribution nozzles are arranged on the outside of the water inlet distribution pipe (2), and the water distribution nozzles include a nozzle and an air suction chamber. The nozzle of the inner water distribution nozzle is inserted into the air suction chamber of the outer water distribution nozzle, and the air suction chamber is connected to the main air inlet pipe (3) through the air inlet branch pipe (4).

2. A multi-stage multi-channel high-speed jet aerator according to claim 1, characterized in that: The main water inlet pipe (1), the water inlet distribution pipe (2), the main air inlet pipe (3), and the air inlet branch pipe (4) are all arranged in the equipment housing (12).

3. A multi-stage multi-channel high-speed jet aerator according to claim 1, characterized in that: The water distribution nozzles are provided with three groups, which are distributed as primary nozzles, secondary nozzles and tertiary nozzles, and the primary nozzles, secondary nozzles and tertiary nozzles are connected in sequence.

4. A multi-stage multi-channel high-speed jet aerator according to claim 3, characterized in that: The first-stage nozzle comprises a first-stage nozzle (5), one end of the first-stage nozzle (5) close to the water inlet distribution pipe (2) is connected to the water inlet distribution pipe (2), and an air suction chamber provided at one end of the first-stage nozzle (5) is an air intake branch pipe (6) in the nozzle.

5. A multi-stage multi-channel high-speed jet aerator according to claim 4, characterized in that: The outer diameter of the air intake branch pipe (6) in the nozzle is smaller than the minimum inner diameter of the first-stage nozzle (5), and the air intake branch pipe (6) in the nozzle is connected to the air intake branch pipe (4).

6. A multi-stage multi-channel high-speed jet aerator according to claim 4, characterized in that: The secondary nozzle comprises a primary air intake chamber (7) and a secondary nozzle (8) connected to the primary air intake chamber (7); the primary nozzle (5) is inserted into the primary air intake chamber (7); and the primary air intake chamber (7) is connected to the intake branch pipe (4).

7. A multi-stage multi-channel high-speed jet aerator according to claim 6, characterized in that: The three-stage nozzle comprises a secondary air suction chamber (9) and an air-water mixing section (10) connected to the secondary air suction chamber (9), and a diffuser section (11) is provided outside the air-water mixing section (10).

8. The multi-stage multi-channel high-speed jet aerator according to claim 4, characterized in that: The first-stage nozzles, the second-stage nozzles and the third-stage nozzles are each provided with six groups, and the six groups of the first-stage nozzles, the second-stage nozzles and the third-stage nozzles are arranged in a circle.

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