CN207385323U - Fluid stirrer - Google Patents

Abstract

The utility model provides a fluid agitator. The fluid mixer includes: a mixing drum, a driving mechanism, a plurality of mixing components and a gear transmission mechanism. Wherein, the mixing drum has a stirring chamber, and a plurality of stirring assemblies are arranged at intervals in the stirring chamber, and the plurality of stirring assemblies include one active stirring assembly and at least one driven stirring assembly, and the driving mechanism is drivingly connected to the active stirring assembly. The gear transmission mechanism is arranged between the active stirring component and the driven stirring component and/or between two driven stirring components, so that the active stirring component drives the driven stirring component to perform stirring. Through the technical scheme provided by the utility model, the mixing effect of high-viscosity gel-like fluid and low-viscosity fluid, heterogeneous phase fluid and low-viscosity fluid can be improved, and the stirring efficiency is also accelerated.

Description

fluid mixer

technical field

The utility model relates to the technical field of fluid agitation, in particular to a fluid agitator.

Background technique

At present, fluids need to be mixed and dispersed in petroleum and chemical production, so fluid agitators are widely used. In the prior art, the fluid agitator provides the required energy and suitable flow state for the mixing and dispersing of the fluid, so that the fluid can flow continuously and finally achieve a certain degree of mixing and dispersing. The existing agitator has an ideal stirring effect on low and medium viscosity fluids, but for fluids with large differences in viscosity characteristics, especially for mixing and stirring some high viscosity, heterogeneous fluids and low viscosity fluids, the current Some mixers can't achieve good mixing effect.

Utility model content

The utility model provides a fluid agitator to solve the problem that the fluid agitator in the prior art is not easy to mix fluids with relatively different viscosity characteristics.

The utility model provides a fluid agitator. The fluid mixer includes: a mixing drum, a driving mechanism, a plurality of mixing components and a gear transmission mechanism. Wherein, the mixing drum has a stirring chamber, and a plurality of stirring assemblies are arranged at intervals in the stirring chamber, and the plurality of stirring assemblies include one active stirring assembly and at least one driven stirring assembly, and the driving mechanism is drivingly connected to the active stirring assembly. The gear transmission mechanism is arranged between the active stirring component and the driven stirring component and/or between two driven stirring components, so that the active stirring component drives the driven stirring component to perform stirring.

Further, each stirring assembly includes a rotating shaft and a stirring paddle arranged on the rotating shaft, and the rotating shaft on the active stirring assembly is drivingly connected to the driving mechanism.

Further, the rotation axes of the multiple stirring assemblies are arranged parallel to each other.

Further, multiple sets of stirring paddles may be provided along the height direction of the rotating shaft, the stirring paddles include a plurality of paddles, and the multiple paddles are symmetrically arranged on the rotating shaft around the rotating shaft as a center.

Further, the distance between the rotating shafts of two adjacent stirring assemblies is greater than the length of the paddles of the stirring assemblies and smaller than the sum of the lengths of the two paddles.

Further, the stirring surface of the paddle has an included angle with the axial plane of the rotating shaft.

Further, the gear transmission mechanism includes a driving gear and at least one driven gear. The driving gear is arranged on the driving stirring assembly. The ratio is 1.

Further, the fluid agitator further includes a controller, and the controller is electrically connected to the driving mechanism.

Further, the controller includes a constant torque frequency converter.

Further, the drive mechanism includes an electric motor.

Applying the technical solution of the utility model, the fluid agitator includes: a mixing drum, a driving mechanism, a plurality of agitating components and a gear transmission mechanism. Wherein, the mixing drum has a stirring chamber, and a plurality of stirring assemblies are arranged at intervals in the stirring chamber, and the plurality of stirring assemblies include one active stirring assembly and at least one driven stirring assembly, and the driving mechanism is drivingly connected to the active stirring assembly. The gear transmission mechanism is arranged between the active stirring component and the driven stirring component and/or between two driven stirring components, so that the active stirring component drives the driven stirring component to perform stirring. During the stirring process of the agitator, shear mixing and convective mixing are enhanced through the agitation of the active stirring component and the driven stirring component, thereby improving the mixing of high-viscosity gel-like fluids, heterogeneous fluids and low-viscosity fluids As a result, the stirring efficiency is accelerated, and the problem that the fluid agitator in the prior art is not easy to mix fluids with relatively poor viscosity characteristics is solved.

Description of drawings

The accompanying drawings constituting a part of this application are used to provide a further understanding of the utility model, and the schematic embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute improper limitations to the utility model. In the attached picture:

Fig. 1 shows the structural representation of the fluid agitator provided by the utility model;

Figure 2a shows a schematic diagram of the first position of the active stirring assembly and the driven stirring assembly provided by the present invention;

Figure 2b shows a schematic diagram of the second position of the active stirring assembly and the driven stirring assembly provided by the present invention;

Figure 2c shows a schematic view of the third position of the active stirring assembly and the driven stirring assembly provided by the present invention;

Fig. 2d shows a schematic diagram of the fourth position of the active stirring component and the driven stirring component provided by the present invention.

Wherein, the above-mentioned accompanying drawings include the following reference signs:

10. Stirring drum; 20. Driving mechanism; 30. Stirring component; 31. Rotating shaft; 32. Stirring paddle; 40. Controller.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. The following description of at least one exemplary embodiment is merely illustrative in nature, and in no way serves as any limitation of the invention and its application or use. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

As shown in FIG. 1 , the embodiment of the present invention provides a fluid agitator. The fluid mixer includes: a mixing drum 10, a driving mechanism 20, a plurality of mixing components 30 and a gear transmission mechanism. Wherein, the mixing drum 10 has a mixing chamber. A plurality of stirring components 30 are arranged at intervals in the stirring chamber, and the plurality of stirring components 30 include one active stirring component 30 and at least one driven stirring component 30 . The driving mechanism 20 is drivingly connected with the active stirring assembly 30 . The gear transmission mechanism is arranged between the active stirring assembly 30 and the driven stirring assembly 30 and/or between two driven stirring assemblies 30, so that the active stirring assembly 30 drives the driven stirring assembly 30 to perform stirring.

Applying the fluid agitator in this embodiment, in the stirring process of the active stirring component 30 and the driven stirring component 30, the shear mixing and convective mixing are enhanced, and the mixing between liquids with relatively different viscosity characteristics is accelerated, thereby The high-viscosity gel-like fluid, the heterogeneous fluid and the low-viscosity fluid can be mixed evenly, which solves the problem that the fluid agitator in the prior art is not easy to mix fluids with relatively different viscosity characteristics, and also improves the stirring efficiency.

Specifically, each stirring assembly 30 includes a rotating shaft 31 and a stirring paddle 32 , and the stirring paddle 32 is arranged on the rotating shaft 31 . The rotating shaft 31 on the active stirring assembly 30 is drivingly connected with the driving mechanism 20 .

Specifically, the rotating shafts 31 of the plurality of stirring assemblies 30 are arranged parallel to each other.

Specifically, multiple sets of stirring paddles 32 can be arranged along the height direction of the rotating shaft 31 , the stirring paddles 32 include a plurality of paddles, and the plurality of paddles are symmetrically arranged on the rotating shaft 31 around the rotating shaft 31 as a center. Preferably, in this embodiment, two paddles are symmetrically arranged on the stirring paddle 32 . Preferably, the outer diameter of the two paddles should be smaller than the inner diameter of the mixing drum 10 when rotating. In this embodiment, the outer diameter of the two paddles when rotating is 0.35-0.8 times the inner diameter of the mixing drum 10 .

Specifically, the distance between the rotating shafts 31 of two adjacent stirring assemblies 30 is greater than the length of the paddles of the stirring assemblies 30 and smaller than the sum of the lengths of the two paddles.

Specifically, there is an included angle between the stirring surface of the paddle and the axial plane of the rotating shaft 31 . In the stirring process of the stirrer, when the stirring speed is low speed, the stirring flow direction of the stirring paddle 32 is horizontal circular flow and axial flow, and when the stirring speed is high speed, the stirring flow direction of the stirring paddle 32 is radial flow and axial flow. to flow. Therefore, by setting the angle between the stirring surface of the paddle and the axial plane of the rotating shaft 31, the stirring flow form of the stirring paddle 32 is changed, thereby shortening the stirring time and improving the mixing effect of liquids with different viscosity characteristics.

Preferably, in this embodiment, the angle between the stirring surface of the paddle and the axial plane of the rotating shaft 31 should be set reasonably. When the setting angle is too small, so that the stirring paddle 32 stirs at high speed and low speed, the stirring flow direction of the stirring paddle 32 is horizontal circular flow and axial flow, and the stirring and pushing flow form of the stirring paddle 32 does not change, so it cannot Improves blending. When the set angle is too large, the contact area between the paddle 32 and the fluid is the largest during the stirring process of the agitator, so the paddle 32 will always be subject to greater resistance, which will increase the damage of the blade.

Specifically, in order to enable one motor to drive multiple stirring assemblies 30 to move, the gear transmission mechanism in this embodiment includes a driving gear and at least one driven gear. Wherein, the driving gear is arranged on the driving stirring assembly 30 , at least one driven gear is provided in one-to-one correspondence with at least one driven stirring assembly 30 , and the transmission ratio between the driving gear and the driven gear is 1.

In this embodiment, preferably one driven gear is provided. As shown in Figures 2a, 2b, 2c and 2d, during the stirring process of the agitator, the rotating speed of the active stirring component 30 and the driven stirring component 30 are the same, but the directions are opposite. In addition, the two stirring components 30 always maintain the correct phase, maintain a fixed gap, and do not touch each other.

When the two stirring components 30 rotate synchronously, a convection phenomenon occurs between the high-viscosity gel-like fluid and the low-viscosity fluid or between the heterogeneous fluid and the low-viscosity fluid, and the fluids in circular motion will collide and shear when they contact each other. Cutting, squeezing, crushing, destroying the circular circulation of the fluid, not only prevents the swirling flow, but also increases the axial shear force between the fluids, and enhances the mixing effect.

Specifically, the fluid mixer further includes a controller 40 used to control the movement of the driving mechanism 20 , and the controller 40 is electrically connected to the driving mechanism 20 .

Specifically, the controller 40 includes a constant torque frequency converter. The frequency conversion rotation of the stirring assembly 30 can be controlled by the constant torque frequency conversion speed regulator, which reduces the average torque and wear on the rotating shaft 31 of the active stirring assembly 30 and the driven stirring assembly 30, thereby reducing the amount of maintenance and maintenance costs, and greatly improving The life of the stirring paddle is 32. With the constant torque frequency conversion speed regulator, when the Reynolds number of the fluid is small at the initial stage of stirring, the resistance to the stirring assembly 30 is relatively large, so the stirring speed is low, and the stirring speed is 1-100r/min. With the stirring, the Reynolds number of the fluid increases continuously, and the stirring speed increases continuously. The constant torque frequency conversion speed regulator shortens the time to achieve the same miscibility effect, reduces energy consumption, and improves the mixing efficiency of high-viscosity gel fluid and low-viscosity fluid.

Specifically, the drive mechanism 20 includes an electric motor.

Using the fluid agitator in this embodiment, during the working process, the fluid agitator controls the work of the motor through the constant torque frequency converter, and the motor drives the driving gear in the gear transmission mechanism to move, so that the driven gear that cooperates with the driving gear Also move accordingly. Along with the transmission of the gear transmission mechanism, the two agitating assemblies 30 connected with the driving gear and the driven gear start to rotate, and the rotation speeds of the two agitating assemblies 30 are the same and opposite in direction, so that the stirring on the two agitating assemblies 30 The paddles 32 never touch each other. And the use of the fluid agitator increases the collision and shear force of fluids with different viscosity characteristics when they contact each other, thereby improving the mixing effect of high-viscosity gel-like fluids and low-viscosity fluids, heterogeneous fluids and low-viscosity fluids, The stirring efficiency is accelerated, and the problem that the fluid agitator in the prior art is not easy to mix fluids with relatively large viscosity characteristics is solved.

It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and/or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and/or combinations thereof.

The relative arrangements of components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. At the same time, it should be understood that, for the convenience of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. Techniques, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods and devices should be considered part of the Authorized Specification. In all examples shown and discussed herein, any specific values should be construed as illustrative only, and not as limiting. Therefore, other examples of the exemplary embodiment may have different values. It should be noted that like numerals and letters denote like items in the following figures, therefore, once an item is defined in one figure, it does not require further discussion in subsequent figures.

In the description of the present utility model, it should be understood that orientation words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" etc. indicate The orientation or positional relationship is generally based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description. In the absence of a contrary statement, these orientation words do not indicate or imply the referred device Or elements must have a specific orientation or be constructed and operated in a specific orientation, so it cannot be construed as limiting the protection scope of the present utility model; the orientation words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

For the convenience of description, spatially relative terms may be used here, such as "on ...", "over ...", "on the surface of ...", "above", etc., to describe the The spatial positional relationship between one device or feature shown and other devices or features. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, devices described as "above" or "above" other devices or configurations would then be oriented "beneath" or "above" the other devices or configurations. under other devices or configurations”. Thus, the exemplary term "above" can encompass both an orientation of "above" and "beneath". The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptions used herein interpreted accordingly.

In addition, it should be noted that the use of words such as "first" and "second" to define components is only for the convenience of distinguishing corresponding components. To limit the scope of protection of the utility model.

The above descriptions are only preferred embodiments of the utility model, and are not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims (10)

1. a kind of fluid stirrer, which is characterized in that the fluid stirrer includes：

Mixing drum (10) has stir chamber；

Driving mechanism (20)；

Multiple mixing components (30), are disposed in the stir chamber, and the multiple mixing component (30) includes an active Mixing component (30) and at least one driven mixing component (30), the driving mechanism (20) and the active mixing component (30) It is drivingly connected；

Gear drive, is arranged between the active mixing component (30) and the driven mixing component (30) and/or two Between a driven mixing component (30), so that the active mixing component (30) drives the driven mixing component (30) to be stirred It mixes.

2. fluid stirrer according to claim 1, which is characterized in that each mixing component (30) includes rotation axis (31) and the agitating paddle (32) that is arranged in the rotation axis (31), the rotation axis (31) on the active mixing component (30) with The driving mechanism (20) is drivingly connected.

3. fluid stirrer according to claim 2, which is characterized in that the rotation axis of the multiple mixing component (30) (31) it is arranged in parallel.

4. fluid stirrer according to claim 2, which is characterized in that the rotation axis (31) can be set along short transverse Multigroup agitating paddle (32), the agitating paddle (32) include multiple blades, and the multiple blade is around the rotation axis (31) Center symmetric setting is in the rotation axis (31).

5. fluid stirrer according to claim 4, which is characterized in that the rotation of the two neighboring mixing component (30) The spacing of axis (31) be more than the length of the blade of the mixing component (30) and less than two blades length and.

6. fluid stirrer according to claim 5, which is characterized in that the mixing surface of the blade and the rotation axis (31) axial plane has angle.

7. fluid stirrer according to claim 1, which is characterized in that the gear drive include driving gear and At least one driven gear, the driving gear are arranged on the active mixing component (30), it is described it is at least one it is described from Moving gear is corresponded at least one driven mixing component (30) and set, the driving gear and the driven tooth The gearratio of wheel is 1.

8. fluid stirrer according to any one of claim 1 to 7, which is characterized in that the fluid stirrer also wraps It includes：

Controller (40), the controller (40) are electrically connected with the driving mechanism (20).

9. fluid stirrer according to claim 8, which is characterized in that the controller (40) includes permanent torque and becomes frequency modulation Fast device.

10. fluid stirrer according to claim 1, which is characterized in that the driving mechanism (20) includes motor.