Multi-nozzle type spiral-flow aerator

Abstract

The utility model relates to the technical field of aerators, in particular to a multi-nozzle type spiral-flow aerator. The utility model provides a multi-nozzle type spiral-flow aerator which comprises a bracket used for playing a foundation supporting role, and a vertical pipe which is vertically arranged so as to avoid center-of-gravity shift and is used for spraying air for mixing is arranged at the central position of the upper part of the bracket in the height direction; a plurality of cutters which are clamped with the bracket and are used for cutting a water body so as to generate fine bubbles to dissolve oxygen are coaxially arranged on the outer side of the vertical pipe; three branch pipes which extend outwards and are communicated with each other are uniformly arranged at the lower end of the vertical pipe in the circumferential direction, nozzles are arranged at the upper parts of the branch pipes, and the inclination angle between the axial lead of each nozzle and the horizontal plane is 16-60 degrees. The aerator is provided with the bracket, the vertical pipe and the cutter, so that the stability of the gravity center of the aerator can be realized through the bracket and the vertical pipe; and the aeration quantity of the aerator can be increased through the nozzle and the cutter, so that the problem of position offset of a hoisting type aerator due to gravity center offset is solved.

Description

Technical Field

[0001] This application relates to the field of aerator technology, and more particularly to a multi-nozzle swirl aerator. Background Technology

[0002] Aeration is a key process in wastewater treatment and aquaculture. It increases the dissolved oxygen content in the water by forcibly injecting air into it, thereby meeting the needs of microbial metabolism or the survival of aquatic plants and animals.

[0003] Existing suspended aeration equipment typically includes a cutter, a base, and an eccentrically mounted inlet riser. However, due to the eccentric mounting of the inlet riser, the center of gravity of the aerator changes significantly, causing the aerator to easily deform from a vertical position to a tilted position during aeration. This results in unsatisfactory stability and aeration volume during use. Furthermore, compared to ground-fixed aerators, it lacks a diversion structure, leading to a significant decrease in aeration volume and a substantial increase in the aeration time required. Utility Model Content

[0004] The problem this application aims to solve is that existing suspended aerators are prone to positional shifts due to center of gravity imbalance during use, and the lack of a diversion structure also leads to low aeration volume, resulting in unsatisfactory stability and aeration volume.

[0005] To address the aforementioned technical problems, this application provides a multi-nozzle swirl aerator, comprising a bracket for basic support, a vertically arranged riser at the center of the upper part of the bracket to avoid center of gravity shift and for spraying air for mixing, and multiple cutters coaxially arranged on the outer side of the riser, which engage with the bracket to cut the water body to generate fine bubbles and dissolve oxygen; three outwardly extending and connected manifold branches are evenly arranged circumferentially at the lower end of the riser, and nozzles are provided on the upper part of the manifold branches, with the axis of the nozzles inclined at an angle of 16 to 60° to the horizontal plane.

[0006] Because the aerator of this application is designed with a bracket, a riser and a cutter, it can stabilize the center of gravity of the aerator through the bracket and the riser, and increase the aeration volume of the aerator through the nozzle and the cutter. This solves the problem that the existing suspended aerator is prone to positional deviation due to the offset of the center of gravity, resulting in unsatisfactory stability and aeration volume. Moreover, the lack of a diversion structure can also lead to low aeration volume. Attached Figure Description

[0007] Figure 1 This is a three-dimensional structural diagram of an embodiment.

[0008] Figure 2This is a front view structural diagram of an embodiment.

[0009] Figure 3 This is a top view of the structure of an embodiment.

[0010] Figure 4 This is a structural diagram of the bracket.

[0011] Figure 5 This is a schematic diagram of the cutter's structure.

[0012] Figure 6 This is a schematic diagram of the riser structure.

[0013] Figure 7 This is a schematic diagram of the manifold branch pipe and nozzle.

[0014] Figure 8 This is a bottom view of the structure as an example.

[0015] In the diagram: 1. Screw sleeve; 2. Cutter; 3. Bracket; 4. Pressure plate; 5. Side plate; 6. Bolt base plate; 7. Mushroom head cutter; 8. Cylinder; 9. Clamping plate; 10. Riser; 11. Manifold branch pipe; 12. Nozzle. Detailed Implementation

[0016] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. Example

[0017] This application relates to a multi-nozzle type swirl aerator, such as Figure 1-8 As shown, the aerator includes a bracket 3 for basic support. A vertically arranged riser 10 is arranged at the center of the upper part of the bracket 3 to avoid the center of gravity shift and to spray air for mixing. On the outside of the riser 10, multiple cutters 2 are arranged coaxially with the bracket 3 to cut the water body to generate fine bubbles and dissolve oxygen.

[0018] The cutter 2 includes a cylinder 8, a mushroom-shaped cutting head 7, and a clamping plate 9. The cylinder 8 has a straight, hollow structure. Multiple mushroom-shaped cutting heads 7 are evenly arranged circumferentially inside the cylinder 8 to cut the gas and improve mixing efficiency. Clamping plates 9 are symmetrically arranged on the outside of the cylinder 8 to engage with the side walls of the bracket 3. To further enhance the cutting effect of the mushroom-shaped cutting head 7, it is mushroom-shaped. The mushroom-shaped cutting head 7 and the cylinder 8 are integrally cast, allowing for easy replacement. Furthermore, the cutting head 7 is threadedly connected to the cylinder 8, facilitating easy replacement.

[0019] The bracket 3 includes a base plate 6, side plates 5, and a pressure plate 4. The base plate 6 is placed horizontally at the bottom of the aerator. The upper part of the base plate 6 has side plates 5 symmetrically arranged on both sides of the riser 10, which are adapted to the clamping plate 9 for clamping and fixing. The top of the side plate 5 is also arranged with a pressure plate 4 connected to it by a detachable bolt 6 for pressing and fixing the cylinder 8. The center of the pressure plate 4 is also sleeved with the riser 10, thereby playing an axial auxiliary support role. The bracket 3 is made of stainless steel with high strength and corrosion resistance.

[0020] The riser 10 is a hollow tubular structure with its bottom sidewall welded to the bottom plate side plate 5. At the upper end of the riser 10, a hollow threaded sleeve 1 is arranged to be threadedly connected to it, so as to facilitate suspension and fixation with the hoisting rod in the site using the threaded sleeve 1. The lower end of the riser 10 is closed.

[0021] To increase aeration, three outwardly extending and interconnected manifold branches 11 are evenly arranged in the circumferential direction at the lower end of the riser 10. The included angle between the manifold branches 11 is 120°. A nozzle 12 is added to the upper part of the manifold branches 11. The angle of inclination between the axis of the nozzle 12 and the horizontal plane is 16-60°. The length ratio between the manifold branches 11 and the nozzle 12 is 3-5:1, and the diameter ratio between the manifold branches 11 and the nozzle 12 is 1-2:1. This allows the gas ejected by the nozzle 12 to be efficiently mixed with the water in a counterclockwise swirling manner. The cross-sectional shape of the branches and nozzles can be rectangular or circular.

[0022] In use, the aerator is suspended in the water. The riser 10 is connected to a lifting rod with lifting capacity via a threaded sleeve 1 at its upper end. Air is then introduced into the riser 10 along the lifting rod. The gas is then evenly dispersed circumferentially through the manifold branch pipe 11 at the bottom of the riser 10 and ejected through the nozzles 12 inclined at the top of the manifold branch pipe 11. This causes a large number of air bubbles to fill the water inside the cylinder 8, driving the water to circulate upwards. The gas and water then interact with each other... The collision between the mushroom-shaped aerator heads 7 causes the gas to burst, thereby increasing the contact area with the water. This allows the gas to fully contact the water, promoting the oxidation and decomposition of organic matter in the water and increasing the dissolved oxygen content, which is beneficial for the growth and reproduction of subsequent microorganisms. The centrally suspended riser 10 ensures that the aerator's center of gravity is relatively stable during operation and will not shift. Furthermore, thanks to the arrangement of the manifold branches 11 and nozzles 12, the aeration rate is effectively increased.

[0023] Generally speaking, terms should be understood at least in part by their use in context. For example, at least in part by context, the term "one or more" as used in the text can be used to describe any feature, structure, or characteristic of the singular meaning, or a combination of features, structures, or characteristics of the plural meaning. Similarly, at least in part by context, terms such as "a" or "the" can also be understood to convey either singular or plural usage.

[0024] It should be readily understood that the terms “on,” “above,” and “on top of” in this disclosure should be interpreted in the broadest possible sense, such that “on” means not only “directly on something” but also “on something” with an intermediate feature or layer therebetween, and that “above” or “on top of” means not only “on top of something” but also “on top of something” without an intermediate feature or layer therebetween (i.e., directly on something).

[0025] Furthermore, for ease of explanation, spatially relative terms such as "below," "below," "under," "above," and "above" may be used to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation other than those shown in the figures. The device may have other orientations (rotated 90 degrees or in other orientations), and the spatially relative descriptive terms used herein may be interpreted accordingly.

[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A multi-nozzle type swirl aerator, characterized in that: The device includes a bracket for basic support, characterized in that: a vertically arranged riser is located at the center of the upper part of the bracket in the height direction to avoid center of gravity shift and for spraying mixed air; multiple cutters are coaxially arranged on the outer side of the riser and engage with the bracket to cut the water body to generate fine bubbles and dissolve oxygen; three outwardly extending and connected branch pipes are evenly arranged in the circumferential direction at the lower end of the riser, and nozzles are provided on the upper part of the branch pipes, with the axis of the nozzles inclined at an angle of 16 to 60° with the horizontal plane.

2. The multi-nozzle swirl aerator according to claim 1, characterized in that: The cutter includes a cylinder, mushroom heads, and clamping plates. Multiple mushroom heads are evenly arranged circumferentially inside the cylinder to cut the gas and improve mixing efficiency. Clamping plates are symmetrically arranged on the outside of the cylinder to engage with the side wall of the bracket.

3. The multi-nozzle swirl aerator according to claim 2, characterized in that: The cylinder has a straight, hollow structure.

4. The multi-nozzle swirl aerator according to claim 2, characterized in that: The mushroom-shaped head is cast integrally with the cylinder body.

5. The multi-nozzle swirl aerator according to claim 2, characterized in that: The bracket includes a base plate and side plates. The base plate is placed horizontally at the bottom of the aerator. The upper part of the base plate has side plates that are symmetrically arranged on both sides of the riser to fit the clamping plate and achieve clamping and fixing.

6. The multi-nozzle swirl aerator according to claim 5, characterized in that: The bracket also includes a pressure plate, and the top of the side plate is also provided with a pressure plate that is connected to it by detachable bolts for pressing and fixing the cylinder. The center of the pressure plate is sleeved with the riser.

7. The multi-nozzle swirl aerator according to claim 5, characterized in that: The riser is a hollow tubular structure with its bottom sidewall welded to the bottom plate sidewall. The upper end of the riser is fitted with a hollow threaded sleeve that is threadedly connected to it.

Images