Low-power-consumption stirrer capable of optimizing mixing

Abstract

The utility model discloses a low-power-consumption stirrer capable of optimizing mixing, which comprises a main shaft, a stirring shaft, a stirring shaft and a stirring shaft, the paddle fixing flange is welded and fixed at the lower end of the main shaft, and four through holes are formed in the paddle fixing flange; the paddle comprises a plate body, a round hole is formed in the middle of the plate body, and a round pipe is fixedly arranged in the round hole in a penetrating mode; the paddle is detachably fixed on the paddle fixing flange through a bolt; through the design of the annular blades and the round pipes, the shearing effect of the blades on fluid is enhanced, high-speed jet flow is generated to damage a trailing vortex structure, invalid energy loss is reduced, and more energy is used for mixed mass transfer. The blades and the flanges are detachably connected through bolts, flexible adjustment of the inclination angle is supported, and the requirements of different pool shapes and working conditions are met. According to the optimized paddle design, through energy dispersion and flow field strengthening, the mixing efficiency is remarkably improved under the same power, and energy conservation and consumption reduction are achieved.

Description

Technical Field

[0001] This utility model relates to the field of fluid mixing device technology, specifically to a low-power stirrer for optimized mixing. Background Technology

[0002] Traditional straight-blade agitators suffer from significant drawbacks in fluid mixing: large wake vortices easily form behind and at the outer edge of the blades, resulting in excessive energy consumption for maintaining these wake vortices and fluid circumferential motion, leaving very little energy for effective mixing and mass transfer. Uneven turbulence distribution leads to near-zero axial and radial velocities of fluid particles, resulting in only linear stretching motion and inadequate mixing. Furthermore, isolation zones and "dead zones" exist within the flow field, further reducing mixing efficiency. Moreover, traditional blades are prone to structural strength degradation with repeated use, limiting their application scenarios. Therefore, there is an urgent need for an agitator that can optimize energy distribution, improve mixing efficiency, and enhance structural stability. Utility Model Content

[0003] (I) Technical Issues

[0004] This invention provides a low-power stirrer for optimized mixing, with the aim of solving the technical problems mentioned in the background art.

[0005] (II) Technical Content

[0006] To solve the above-mentioned technical problems, the technical solution of this utility model is: a low-power stirrer for optimized mixing, comprising:

[0007] The main shaft has a blade fixing flange fixed at its lower end;

[0008] The blade fixing flange is welded and fixed to the lower end of the main shaft, and four through holes are provided on the blade fixing flange.

[0009] The blade includes a plate body with a circular hole in the middle, through which a circular tube is fixedly inserted; the blade is detachably fixed to the blade fixing flange by bolts.

[0010] The angle between the blade and the horizontal plane ranges from 35° to 75°.

[0011] Furthermore, the blade has an annular structure, and its circular tube edge shears the fluid during rotation, generating a high-speed jet to disrupt the wake vortex structure.

[0012] Furthermore, the length of the circular tube extends beyond the upper and lower surfaces of the plate, forming a prominent shear edge.

[0013] Furthermore, the bolt is equipped with a flat washer and a spring washer, and is fastened by a nut.

[0014] (III) Technical Effects

[0015] Compared with existing technologies, this invention has the following advantages: Through the design of the annular blade and circular tube, the shearing effect of the blade on the fluid is enhanced, generating a high-speed jet that disrupts the wake vortex structure, reducing ineffective energy loss, and allowing more energy to be used for mixing and mass transfer. The rotation of the annular blade significantly increases the turbulence intensity of the flow field, eliminating "dead zones" and isolation zones, enabling fluid particles to obtain effective velocity components in both the axial and radial directions, achieving chaotic mixing. The blade and flange are connected by bolts for detachability, supporting flexible adjustment of the tilt angle to adapt to different pool shapes and operating conditions. The optimized blade design significantly improves mixing efficiency at the same power level through energy dispersion and flow field enhancement, achieving energy saving and consumption reduction. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of a low-power stirrer for optimized mixing according to this utility model. Figure 1 .

[0017] Figure 2 This is a three-dimensional structural diagram of a low-power stirrer for optimized mixing according to this utility model. Figure 2 .

[0018] Figure 3 This is a three-dimensional structural diagram of a low-power stirrer for optimized mixing according to this utility model. Figure 3 .

[0019] Figure 4 This is a schematic diagram of the main structure of a low-power stirrer for optimized mixing according to this utility model.

[0020] Figure 5 This is a simulation of the effect of a low-power stirrer for optimized mixing according to this utility model. Figure 1 .

[0021] Figure 6 This is a simulation of the effect of a low-power stirrer for optimized mixing according to this utility model. Figure 2 .

[0022] As shown in the figure: 1. Main shaft; 2. Blade fixing flange; 3. Blade; 4. Bolt; 31. Plate; 6. Circulation pipe; 33. Circular pipe. Detailed Implementation

[0023] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", "center", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation structure and operation. Therefore, they should not be construed as limitations on this utility model.

[0024] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "provided with," "installed," "connected," "linked," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] The present invention will now be described in further detail with reference to the accompanying drawings.

[0026] Combined with appendix Figure 1 To be continued Figure 6 A low-power mixer for optimized mixing includes: a main shaft 1, with a blade fixing flange 2 fixedly mounted at its lower end; the blade fixing flange 2 is welded and fixed to the lower end of the main shaft 1, and has four through holes; a blade 3, including a plate 31, with a circular hole in the middle of the plate 31, and a circular tube 33 fixedly passing through the circular hole; the blade 3 is detachably fixed to the blade fixing flange 2 by bolts 4, the bolts 4 being equipped with flat washers and spring washers, and being fastened by nuts; the angle of inclination of the blade 3 to the horizontal plane is in the range of 35°-75°. The blade 3 has a ring structure, and its circular tube 33 shears the fluid during rotation, generating a high-speed jet to disrupt the vortex structure.

[0027] The length of the circular tube 33 extends beyond the upper and lower surfaces of the plate 31, forming a protruding shear edge.

[0028] The working principle of this invention is as follows: An external power source (such as a motor) drives the main shaft 1 to rotate, and the main shaft 1 drives the impeller 3 to rotate synchronously through the impeller fixing flange 2 at the bottom. The plate 31 of the impeller 3 is annular, with a circular hole 32 in the middle, through which a fixed circular tube 33 passes. The impeller 3 is installed at an inclination angle of 35°-75° (the impeller fixing flange is welded and fixed to the main shaft at a specific angle, and the angle of the impeller fixing flange determines the installation angle of the impeller). When rotating, the edge of the circular tube 33 forms a shearing effect on the fluid, generating a high-speed jet. The high-speed jet destroys the tail vortex structure behind the traditional stirring impeller, reducing energy loss, while enhancing the turbulence intensity of the flow field and eliminating the "dead zone". The circular tube 33 extends beyond the upper and lower surfaces of the plate 31, and the protruding shearing edge enhances the tearing effect on the fluid, improving energy dissipation efficiency. The impeller 3 is detachably connected to the impeller fixing flange 2 by bolts 4, flat washers 41, spring washers 42, and nuts 43, supporting flexible adjustment of the impeller angle (achieved by replacing the main shaft and flange). In traditional mixers, the energy consumed in maintaining the wake vortex is redistributed to the effective mixing and mass transfer process. The annular blade design reduces ineffective power loss, significantly increases the axial and radial velocity components in the flow field, promotes chaotic mixing, shortens the mixing time, and ultimately achieves better mixing efficiency at the same power.

[0029] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. An optimally mixed low power agitator characterized by, include: The main shaft (1) has a blade fixing flange (2) fixed at its lower end; The blade fixing flange (2) is welded and fixed to the lower end of the main shaft (1), and four through holes are provided on the blade fixing flange (2); The blade (3) includes a plate (31), a round hole is provided in the middle of the plate (31), and a round tube (33) is fixedly inserted through the round hole; the blade (3) is detachably fixed to the blade fixing flange (2) by bolts (4); The angle between the blade (3) and the horizontal plane is in the range of 35°-75°.

2. An optimally mixed low power consumption mixer as claimed in claim 1, wherein: The blade (3) is an annular structure. Its circular tube (33) edge shears the fluid during rotation, generating a high-speed jet to destroy the tail vortex structure.

3. An optimally mixed low power consumption mixer as claimed in claim 1, wherein: The length of the circular tube (33) extends beyond the upper and lower surfaces of the plate (31), forming a protruding shear edge.

4. An optimally mixed low power consumption mixer as claimed in claim 1, wherein: The bolt (4) is equipped with a flat washer and a spring washer and is fastened by a nut.

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