CN212532427U - Rotary aerator - Google Patents

Abstract

The utility model discloses a rotary aerator, which comprises an outer shell and an inner shell which is positioned in the outer shell and can rotate around the axis of the inner shell, wherein the position of the inner shell, which is far away from the axis, is provided with a liquid phase throwing port, and the axis is provided with a liquid inlet pipe, and the liquid inlet end of the liquid inlet pipe extends out of the outer shell and is movably connected with the outer shell; the shell is provided with a gas inlet, a mixture outlet and a scattering rod, wherein the mixture outlet and the scattering rod are arranged at the position corresponding to the liquid phase throwing-out port. Liquid enters from the liquid inlet pipe, after impacting on the inner shell, the liquid is accelerated to leave from the liquid phase throwing outlet, and in the process that the liquid leaves from the liquid phase throwing outlet, a micro negative pressure can be formed between the inner shell and the outer shell, so that gas enters between the inner shell and the outer shell from the gas inlet, so that the liquid meets with a gas phase after leaving the liquid phase throwing outlet, then after the gas-liquid two-phase impacting with the scattering rod, the liquid phase is impacted into fine particles, the solid-liquid contact area is increased, the dissolution of the gas phase in the liquid phase is improved, and then the gas-liquid mixture leaves from the outer shell from the.

Description

Rotary aerator

Technical Field

The utility model relates to an aeration equipment, concretely relates to rotary aerator.

Background

The aerator is widely applied in the industrial field, and particularly in the process of sewage treatment by using a biological treatment method, the aerator transfers oxygen in a gas phase to a liquid phase by using the principle of aeration diffusion, namely the oxygen in the gas phase is transferred to dissolved oxygen in the liquid phase, so that the aerator is favorable for oxidative decomposition of impurities in the sewage. The degree of dispersion of the gas phase in the liquid phase is particularly important in order to increase the dissolved oxygen in the liquid phase.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a rotary aerator solves the not good problem of gaseous phase dispersion effect in the liquid phase.

In order to solve the technical problem, the utility model adopts the following technical scheme:

a rotary aerator comprises an outer shell and an inner shell which is positioned in the outer shell and can rotate around the axis of the inner shell, wherein a liquid phase throwing outlet is arranged at the position of the inner shell, which is far away from the axis, a liquid inlet pipe is arranged on the axis, and the liquid inlet end of the liquid inlet pipe extends out of the outer shell and is movably connected with the outer shell;

the shell is provided with a gas inlet, a mixture outlet and a scattering rod, wherein the mixture outlet and the scattering rod are arranged at the position corresponding to the liquid phase throwing-out port.

Preferably, the liquid inlet pipe is connected with the shell through a bearing.

Preferably, a rotational flow plate capable of driving the inner shell to rotate is fixedly arranged in the inner shell.

Preferably, the shell comprises an upper half shell and a lower half shell, the upper half shell and the lower half shell are fixed through a plurality of scattering rods, and a mixture outlet is formed between every two adjacent scattering rods.

Preferably, the gas inlet is provided on the housing at a position opposite to the liquid inlet pipe.

Preferably, a liquid blocking ring is fixed close to the edge of the lower half shell, and an inner shell of the liquid blocking ring is coaxially arranged and is gradually close to the lower half shell along the discharging direction of the mixed material.

Preferably, the inner shell includes an upper half shell and a lower half shell, the upper half shell is located one side where the liquid phase throwing-out opening is close to the liquid inlet pipe, the lower half shell is located one side where the liquid phase throwing-out opening is far away from the liquid inlet pipe, and the rotational flow plate is fixed on the upper half shell.

Preferably, the lower half shell is provided with bumps for scattering the liquid phase.

Preferably, the salient points are conical and are distributed on the inner surface of the lower half shell.

Compared with the prior art, the beneficial effects of the utility model are one of following at least:

liquid enters from the liquid inlet pipe, after impacting on the inner shell, the liquid is accelerated to leave from the liquid phase throwing outlet, and in the process that the liquid leaves from the liquid phase throwing outlet, a micro negative pressure can be formed between the inner shell and the outer shell, so that gas enters between the inner shell and the outer shell from the gas inlet, so that the liquid meets with a gas phase after leaving the liquid phase throwing outlet, then after the gas-liquid two-phase impacting with the scattering rod, the liquid phase is impacted into fine particles, the solid-liquid contact area is increased, the dissolution of the gas phase in the liquid phase is improved, and then the gas-liquid mixture leaves from the outer shell from the.

The inner shell in this embodiment can take place relative rotation with the shell, for liquid provides a centrifugal force for liquid can leave the inner shell with higher speed, and the quick striking is on breaing up the pole, and the dispersion effect is better.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural view of the whirl plate of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The embodiment provides a rotary aerator, which comprises an outer shell 1 and an inner shell 2 positioned in the outer shell 1 and capable of rotating around the axis of the inner shell, wherein a liquid phase throwing outlet 3 is arranged at the position, far away from the axis, of the inner shell 2, a liquid inlet pipe 4 is arranged on the axis, and the liquid inlet end of the liquid inlet pipe 4 extends out of the outer shell 1 and is movably connected with the outer shell 1;

the shell 1 is provided with a gas inlet 5, a mixture outlet and a scattering rod 6, wherein the mixture outlet and the scattering rod are arranged at the position corresponding to the liquid phase throwing outlet 3.

When the rotary aerator in the embodiment works, liquid enters from the liquid inlet pipe 4, the liquid is thrown away from the liquid phase outlet 3 after impacting on the inner shell 2, the liquid is thrown away from the liquid phase outlet 3, a micro negative pressure can be formed between the inner shell 2 and the outer shell 1, so that gas enters between the inner shell 2 and the outer shell 1 from the gas inlet 5, the liquid is thrown away from the liquid phase outlet 3 and then meets with a gas phase, then the liquid phase and the dispersing rod 6 are impacted, the liquid phase is impacted into fine particles, the solid-liquid contact area is increased, the dissolution of the gas phase in the liquid phase is improved, and then the gas-liquid mixture leaves from the mixture outlet 1.

The inner shell 2 in the embodiment can rotate relative to the outer shell 1, a centrifugal force is provided for liquid, the liquid can leave the inner shell 2 in an accelerating mode and quickly impact the scattering rod 6, and the scattering effect is better.

The breaking rod 6 in this embodiment may be in the form of a sheet, a plate, a rod, a column, or even a net, and preferably, when the breaking rod 6 is in the form of a net, the liquid phase is better dispersed, and the gas phase is better dissolved in the solid phase.

In this embodiment, the liquid inlet pipe 4 is connected with the outer shell 1 through a bearing, so that the liquid inlet pipe 4 does not have an obstructing effect when the inner shell 2 and the outer shell 1 rotate relatively. In addition, in order to make the inner casing 2 rotate smoothly, if the liquid source is relatively fixed, a bearing should be disposed between the liquid inlet pipe 4 and the liquid pipe or between the liquid inlet pipe 4 and the feeding pipe connected to the liquid source.

In this embodiment, inner shell 2 internal fixation is provided with can drive the rotatory whirl board 7 of inner shell 2, as shown in fig. 2.

The existence of whirl board 7 makes liquid when getting into inner shell 2, can give 7 pushing forces of whirl board, promotes whirl board 7 and takes place to rotate, because fixed connection between whirl board 7 and the inner shell 2, so inner shell 2 can be driven rotatoryly by whirl board 7.

The existence of the rotational flow plate 7 can replace a motor, thereby saving power equipment and energy consumption. And the existence of the rotational flow plate 7 enables the liquid phase to receive a force far away from the axis, which is beneficial to accelerating the liquid to leave from the liquid phase throwing outlet 3.

In this embodiment, shell 1 includes first casing and lower casing, it is fixed through breaking up pole 6 between first casing and the lower casing, break up pole 6 and have a plurality ofly, constitute the mixture export between the adjacent pole 6 that breaks up.

The distance between the scattering rods 6 can be set as required, so that no matter where the liquid phase throwing port 3 rotates, the liquid phase throwing port can be collided with the scattering rods 6 and then leaves from the mixture outlet.

In this embodiment, the gas inlet 5 is disposed on the outer shell 1 opposite to the liquid inlet pipe 4, so that the gas can be relatively uniformly dispersed between the outer shell 1 and the inner shell 2.

In this embodiment, be close to lower half casing edge is fixed with liquid blocking ring 8, liquid blocking ring 8 inner shell 2 coaxial setting just is close to lower half casing gradually along the direction of mixture ejection of compact.

When the rotary aerator is horizontally arranged, liquid may leave from the gas inlet 5, and in order to reduce the amount of liquid leaving from the gas inlet 5, a liquid-blocking ring 8 is arranged, the height of the upper end of the liquid-blocking ring 8 being higher than the height of the top end of the lower half-shell, so that the accumulated liquid can leave from the mix outlet.

In this embodiment, inner shell 2 includes half upper shell and half lower shell, half upper shell is located the liquid phase and gets rid of the one side that export 3 is close to feed liquor pipe 4, and half lower shell is located the liquid phase and gets rid of the one side that export 3 kept away from feed liquor pipe 4, whirl plate 7 is fixed on half upper shell.

The whirl plate 7 is located half upper shell, and liquid is through whirl plate 7, gives 7 thrust of whirl plate for whirl plate 7 drives the rotation of inner shell 2, simultaneously, passes whirl plate 7 back when liquid, strikes half lower shell on, then gets rid of export 3 from the liquid phase and throws away, and liquid drop dispersion effect is better relatively.

In this embodiment, be provided with the bump that is used for breaking up the liquid phase on the half lower shell, the bump is the toper and spreads all over the internal surface of half lower shell, and the liquid drop dispersion effect is relatively better.

Although the invention has been described herein with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this invention. More specifically, various variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the disclosure, the drawings and the appended claims. In addition to variations and modifications in the component parts and/or arrangements, other uses will also be apparent to those skilled in the art.

Claims (9)

1. A rotary aerator is characterized in that: the device comprises an outer shell (1) and an inner shell (2) which is positioned in the outer shell (1) and can rotate around the axis of the inner shell, wherein a liquid phase throwing outlet (3) is arranged at the position, far away from the axis, of the inner shell (2), a liquid inlet pipe (4) is arranged on the axis, and the liquid inlet end of the liquid inlet pipe (4) extends out of the outer shell (1) and is movably connected with the outer shell (1);

the shell (1) is provided with a gas inlet (5), a mixture outlet and a scattering rod (6) which are arranged at the position corresponding to the liquid phase throwing outlet (3).

2. The rotary aerator according to claim 1, characterized in that the liquid inlet pipe (4) and the housing (1) are connected by bearings.

3. The rotary aerator as claimed in claim 1, characterized in that a swirl plate (7) which can rotate the inner housing (2) is fixedly arranged in the inner housing (2).

4. The rotary aerator of claim 1, wherein the housing (1) comprises an upper half shell and a lower half shell, the upper half shell and the lower half shell are fixed by a plurality of breaking rods (6), and a mixture outlet is formed between adjacent breaking rods (6).

5. The rotary aerator according to claim 1, characterized in that the gas inlet (5) is arranged on the housing (1) opposite to the liquid inlet pipe (4).

6. The rotary aerator according to claim 4, characterized in that a liquid-stop ring (8) is fixed near the edge of the lower half-shell, said liquid-stop ring (8) being arranged coaxially with the inner shell (2) and gradually approaching the lower half-shell in the direction of the mixture discharge.

7. The rotary aerator of claim 3, wherein the inner housing (2) comprises an upper half-shell and a lower half-shell, the upper half-shell being located on the side of the liquid phase slinger outlet (3) close to the liquid inlet pipe (4), the lower half-shell being located on the side of the liquid phase slinger outlet (3) remote from the liquid inlet pipe (4), the swirl plate (7) being fixed to the upper half-shell.

8. The rotary aerator of claim 7, wherein the lower housing half is provided with protrusions for breaking up the liquid phase.

9. The rotary aerator of claim 8, wherein the protrusions are tapered and extend over the inner surface of the lower housing half.

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