CN219291098U

CN219291098U - High-efficiency dispersing paddle

Info

Publication number: CN219291098U
Application number: CN202223541896.3U
Authority: CN
Inventors: 王伟; 王浩; 李广; 孙明刚; 尤晓虎
Original assignee: Dongfulong Life Technology Co ltd
Current assignee: Dongfulong Life Technology Co ltd
Priority date: 2022-12-29
Filing date: 2022-12-29
Publication date: 2023-07-04
Anticipated expiration: 2032-12-29

Abstract

The utility model relates to the technical field of bioreactor stirring assemblies, and discloses a high-efficiency dispersing paddle, which comprises: the novel multifunctional electric motor comprises a hub and blades, wherein the blades are welded on the outer edge of the hub, the blades after being unfolded straight are vertically symmetrical polygonal metal plates, the number of the blades is four, the blades are uniformly distributed on the outer edge of the hub in an annular mode, a first bending line and a second bending line are respectively arranged on the surfaces of the blades, and the first bending line obliquely spans the middle of the blades. This high-efficient dispersion oar, through the face liquid level with the dispersion oar buckle into the cambered surface, not only easily production can also disperse gas and liquid level fast, reduces the appearance of paddle wake vortex, has improved the energy utilization of agitator, and the dispersion oar that the panel beating was buckled can produce stronger axial flow along with the use for gas-liquid dispersion, can further reduce the consumption in six leaf disc turbines compare, has still reduced manufacturing cost simultaneously.

Description

High-efficiency dispersing paddle

Technical Field

The utility model relates to the technical field of bioreactor stirring assemblies, in particular to a high-efficiency dispersing paddle.

Background

In the process of culturing cells, the bioreactor generally needs to fully disperse the gas entering the culture tank in the culture solution, so as to ensure that the cells in the culture tank can normally grow and propagate in contact with the gas, and the purpose of dispersing the gas is achieved by adopting a six-leaf disc turbine at present.

At present, a stirring rake and agitating unit of prior art CN212758100U has provided that current stirring dispersion paddle can not realize better suspension effect, especially produces the problem that regional solid material under the paddle is piled up easily to provide the solution to this problem, but still have following not enough in the above-mentioned scheme:

in the prior art, when gas dispersion stirring is carried out in a bioreactor for culturing cells, six-leaf disc turbines are used, and the power consumption caused by the structural form of the six-leaf disc turbines is larger, the NP value (power standard number) is larger, additional welding is needed, the manufacturing cost is increased, and only radial flow can be generated, so that the gas-liquid dispersion effect is not obvious.

Disclosure of Invention

In view of the shortcomings of the prior art, the present utility model provides a high efficiency dispersion paddle that addresses the problems noted in the background above.

The utility model provides the following technical scheme: high-efficient dispersion oar includes: hub and paddle, the paddle welds in hub's outer edge, straight after expanding the paddle is the polygon panel beating of upper and lower symmetry, the quantity of paddle is four, and four the paddle is annular evenly distributed in hub's outer edge department, the surface of paddle is provided with first bending line and second bending line respectively, first bending line is inclined to stride in the middle part of paddle, the second bending line is located the one end department that hub was kept away from on the paddle surface, the paddle body is whole is constituteed to hub and paddle, first bending line is inclined to stride and forms the contained angle between paddle surface and the paddle bottom plane, and its contained angle a1 is 45 ~ 55, two triangle breach have been seted up to the border symmetry that the paddle is close to hub one end, the triangle breach is isosceles right triangle, isosceles right triangle's acute angle is 45 angles.

Preferably, the blade is formed by bending metal plates, an included angle is formed between the edge of one end of the blade, which is far away from the hub, and the plane of the bottom of the hub, and the included angle a is 10-25 degrees.

Preferably, the length of the whole propeller body Dj is 3-3.6 times of the shortest distance D1 between the intersection point of the first bending line and the plane of the bottom of the propeller blade and the edge of the propeller blade close to the hub.

Preferably, the metal plate between the first bending line and the second bending line is bent to be a curved surface, and the length of the whole paddle body Dj is 2.8-3 times of the radius R of the curved surface arc.

Preferably, the length of the unfolded blade is one half of the length of the whole blade Dj, two rounding corners are arranged at the edge of the blade away from one end of the hub, the radius R1 of each rounding corner is 0.1-0.15 times of the length of the whole blade Dj, the length of the whole blade Dj is 2.5 times of the width D2 of the blade after the blade is flatly unfolded, and the length of the whole blade Dj is 2-2.75 times of the distance D3 between the edge of the blade away from one end of the hub and a gap of the blade close to the hub.

Compared with the prior art, the utility model has the following beneficial effects:

1. this high-efficient dispersion oar, through the face liquid level with the dispersion oar buckle into the cambered surface, not only easily production can also disperse gas and liquid level fast, reduces the appearance of paddle wake vortex, has improved the energy utilization of agitator, and the dispersion oar that the panel beating was buckled can produce stronger axial flow along with the use for gas-liquid dispersion, can further reduce the consumption in six leaf disc turbines compare, has still reduced manufacturing cost simultaneously.

2. This high-efficient dispersion oar through the structure of adjustment stirring paddle, sets up the bending line of twice difference simultaneously at stirring paddle, increases the fluxion of liquid, has reduced the resistance of liquid to the dispersion oar, simultaneously, utilizes the ability that the dispersion oar itself can produce radial flow and axial flow, reduces the consumption and reduces mixing time, improves mass transfer performance.

Drawings

FIG. 1 is a schematic top view of the overall structure of the present utility model;

FIG. 2 is a schematic elevational view of the present utility model;

FIG. 3 is a schematic view of a first bend line location structure according to the present utility model;

FIG. 4 is a schematic view of a curved bending structure of a blade according to the present utility model;

fig. 5 is a schematic view of a flat and unfolded structure of a blade according to the present utility model.

In the figure: 1. a hub; 2. a paddle; 3. a first bending line; 4. and a second bending line.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-5, a high efficiency dispersion paddle comprising: the novel energy-saving wind turbine comprises a hub 1 and blades 2, wherein the blades 2 are welded on the outer edge of the hub 1, the blades 2 after being unfolded in a straight mode are vertically symmetrical polygonal metal plates, the number of the blades 2 is four, the four blades 2 are uniformly distributed on the outer edge of the hub 1 in an annular mode, the four blades 2 are enabled to radially flow in a turbulent mode when rotating, liquid flowing out of the radial direction of the blades 2 pushes liquid in a tank to flow to the tank wall, an upper loop and a lower loop are formed after the liquid flows into the tank wall and flow back to an inlet of a stirrer again after the liquid is blocked, so that overall circulation flow is formed, the novel energy-saving wind turbine is suitable for dispersing and liquid-liquid phase reaction processes of gas and non-miscible liquid, a first bending line 3 and a second bending line 4 are arranged on the surface of the blades 2 respectively, the first bending line 3 obliquely spans the middle of the blades 2, the second bending line 4 is located at one end of the surface of the blades 2 far away from the hub 1, the hub 1 and the blades 2 form an integral blade body, an included angle a1 is formed between the surface of the first bending line 3 obliquely spans the blades 2 and the bottom plane of the blades 2, the included angle a1 is 45-55 degrees, the edge of the isosceles triangle gap is formed at the edge of one end of the blade 2 is close to the hub 1, and the isosceles triangle gap is a right triangle is an isosceles triangle angle, and an isosceles triangle angle is 45 degrees angle triangle angle is an angle.

Wherein; the paddle 2 is formed by bending metal plates, an included angle a is formed between the edge of one end of the paddle 2 far away from the hub 1 and the plane of the bottom of the hub 1, and the included angle a is 10-25 degrees, so that the energy consumption is larger based on the fact that the rotating axis is further, the included angle a is smaller by bending the distal end of the stirring paddle 2, the resistance of liquid to the distal end of the stirring paddle 2 can be effectively reduced, and the energy consumption is further reduced.

Wherein; the length of the integral propeller body Dj is 3-3.6 times of the shortest distance D1 between the intersection point of the first bending line 3 and the bottom plane of the propeller blade 2 and the edge of the propeller blade 2 close to the hub 1, and the first bending point is formed on the surface of the propeller blade 2 by utilizing the first bending line 3, so that the propeller blade is easy to process and the required functions of the propeller blade 2 are not influenced.

Wherein; the sheet metal between the first bending line 3 and the second bending line 4 is bent into a curved surface, the length of the whole paddle body Dj is 2.8-3 times of the radius R of the curved surface arc, the contact area between the paddle 2 and liquid in the rotating process of the paddle 2 is further reduced by utilizing the curved surface, the resistance of the liquid to the paddle 2 is reduced, and the purpose of reducing consumption is achieved.

Wherein; the length of the blade 2 after being unfolded is one half of the length of the blade body integral Dj, two rounding angles are arranged at the edge of one end of the blade 2 far away from the hub 1, the radius R1 of the two rounding angles is 0.1-0.15 times of the length of the blade body integral Dj, the length of the blade body integral Dj is 2.5 times of the width D2 of the blade 2 after being unfolded straightly, the length of the blade body integral Dj is 2-2.75 times of the distance D3 between the edge of one end of the blade 2 far away from the hub 1 and a notch of the blade 2 near the hub 1, and the traditional die processing is changed into simple sheet metal bending, so that a sheet metal material is cut after being enlarged or reduced according to the size of a required reactor, the original workpiece to be bent can be conveniently and rapidly produced in a large scale, and the production difficulty and the production cost are greatly reduced.

In the working principle, in the process of producing the blade 2, the suitable blade 2 size can be determined according to the applied reactor size, then the blade 2 sheet metal raw materials are taken into each size in equal proportion and cut, then special process blades are adopted to bend and weld the hub, and when the space in the reactor is large, a plurality of groups of blade bodies can be arranged on the same rotating shaft, so that the gas-liquid dispersion in the reactor is more uniform and comprehensive.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. High-efficient dispersion oar, its characterized in that includes: hub (1) and paddle (2), paddle (2) weld in the outer edge of hub (1), straight after expanding paddle (2) are upper and lower symmetry polygon panel beating, the quantity of paddle (2) is four, and four paddle (2) are annular evenly distributed in the outer edge department of hub (1), the surface of paddle (2) is provided with first curved broken line (3) and second curved broken line (4) respectively, first curved broken line (3) is striden in the middle part of paddle (2) to one side, second curved broken line (4) are located the one end department that hub (1) was kept away from on paddle (2) surface, hub (1) and paddle (2) constitute the paddle body wholly, first curved broken line (3) is striden to one side and is formed the contained angle between paddle (2) bottom plane, and its contained angle a1 is 45 ~ 55, two triangle breach have been seted up to the border symmetry that paddle (2) is close to hub (1) one end, the triangle breach is isosceles triangle, the right triangle is 45.

2. The efficient dispersing impeller according to claim 1, wherein the blades (2) are formed by bending sheet metal, and an included angle a is formed between the edge of one end of each blade (2) far away from the hub (1) and the plane of the bottom of the hub (1), wherein the included angle a is 10-25 degrees.

3. The high-efficiency dispersion paddle according to claim 1, wherein the length of the paddle body overall Dj is 3-3.6 times the shortest distance D1 between the intersection point of the first bending line (3) and the bottom plane of the paddle (2) and the edge of the paddle (2) close to the hub (1).

4. The efficient dispersing paddle according to claim 1, wherein the metal plates between the first bending line (3) and the second bending line (4) are bent to be curved surfaces, and the length of the whole paddle body Dj is 2.8-3 times of the radius R of the curved surface arc.

5. The efficient dispersion paddle according to claim 1, wherein the length of the paddle (2) after being unfolded is one half of the length of the paddle body overall Dj, two rounded corners are arranged at the edge of one end of the paddle (2) away from the hub (1), the radius R1 of the two rounded corners is 0.1-0.15 times of the length of the paddle body overall Dj, the length of the paddle body overall Dj is 2.5 times of the width D2 of the paddle (2) after being unfolded in a flat mode, and the length of the paddle body overall Dj is 2-2.75 times of the distance D3 between the edge of one end of the paddle (2) away from the hub (1) and a notch of the paddle (2) close to the hub (1).