Wall-flow vortex type splash baffle vortex mixer

Abstract

The utility model relates to the technical field of vortex mixers, specifically to wall flow vortex type splash-proof whirlpool mixer, including base, the base top fixedly connected with an outer tube, the inner tube is equipped with one in the outer tube, the base bottom fixed mounting has one high speed motor, high speed motor output shaft is fixed with the inner tube coaxial, the outer tube top thread has installed one bucket lid, the inner tube inner ring wall is fixedly installed with several equal interval vortex fin settings. The utility model discloses a double -layer structure of setting outer tube and inner tube, cooperate the vortex fin of inner tube ring wall, form steady vortex when high -speed motor drive inner tube rotation, and can use hollow board and air outlet board to spray the airflow consistent with the vortex direction before the inner tube rotation, preliminary vortex flow is formed, makes vortex flow from small to big, can effectively prevent splashing, still can promote mixing efficiency through airflow restraint and double -layer cylinder wall prevents liquid splashing, can also promote the dual function of splash-proof and efficient mixing.

Description

Technical Field

[0001] This utility model relates to the field of vortex mixer technology, specifically a wall-flow vortex anti-splash vortex mixer. Background Technology

[0002] In scientific research and production activities such as biological experiments, chemical analysis, and medical testing, sample mixing is a crucial preliminary or intermediate step. The uniformity and efficiency of mixing directly affect the accuracy of subsequent experimental results, reaction rates, and detection precision. Currently, the most commonly used mixing equipment in laboratories is the traditional vortex mixer. Its core uses a high-speed motor to drive a vibrating head, causing the container to move in a circular motion. This causes the liquid inside the container to form vortices due to inertia, thereby achieving mixing.

[0003] However, existing traditional vortex mixers have the following significant technical shortcomings in practical use, making it difficult to meet the needs of high-precision experimental scenarios:

[0004] Poor splash prevention leads to sample loss and contamination: Traditional vortex mixers rely on a single "mechanical rotation-driven vortex" mode, where the formation and intensity of the liquid vortex during mixing are entirely determined by the motor speed. When processing high-viscosity liquids, suspensions containing particles, or when increasing the speed to improve mixing efficiency, the liquid is prone to detaching from the container wall due to excessive inertia, forming a turbulent "central high-speed flow," which then splashes outwards along the container opening—not only causing sample loss, but also potentially contaminating the equipment surface, other samples, or operators, increasing experimental errors and safety risks. While some devices alleviate this problem by adding a simple cover or reducing the speed, the cover is prone to interference with rotating parts, and reducing the speed directly leads to a decrease in mixing efficiency, making it difficult to balance splash prevention and mixing effectiveness.

[0005] In view of this, we propose a wall-flow vortex anti-splash vortex mixer. Utility Model Content

[0006] To overcome the above shortcomings, this utility model provides a wall-flow vortex anti-splash vortex mixer.

[0007] The technical solution of this utility model is:

[0008] A wall-flow vortex-type splash-proof vortex mixer includes a base, an outer cylinder fixedly connected to the top of the base, an inner cylinder inside the outer cylinder, a high-speed motor fixedly installed at the bottom of the base, the output shaft of the high-speed motor being coaxially fixed with the inner cylinder, a bucket cover threadedly installed at the top of the outer cylinder, several equally spaced vortex fins fixedly installed on the inner ring wall of the inner cylinder, two hollow plates symmetrically arranged inside the inner cylinder, an air outlet plate integrally formed on the hollow plate, the air outlets of the two air outlet plates being in the same direction as the vortex fins, and an air supply assembly communicating with the two hollow plates installed at the top of the base. By setting up a double-layer structure of outer and inner cylinders, and with the vortex fins on the inner cylinder's ring wall, a stable vortex is formed when the inner cylinder is driven to rotate by a high-speed motor. Before the inner cylinder rotates, airflow in the same direction as the vortex is ejected using hollow plates and air outlet plates, initially forming a vortex. This allows the vortex to grow from small to large, effectively preventing splashing. Furthermore, the airflow constraint and double-layer cylinder wall blockage prevent liquid splashing, while also improving mixing efficiency. This achieves the dual functions of splash prevention and high-efficiency mixing. The lid also provides a certain degree of splash prevention.

[0009] As a preferred technical solution, the base has two support legs symmetrically fixedly installed at its bottom. This provides stable support for the entire mixer and prevents vibrations generated during high-speed motor operation from causing the equipment to shift or tip over.

[0010] As a preferred technical solution, the gas supply assembly includes delivery pipes that are respectively connected to the interior of the two hollow plates. The delivery pipes pass around the top of the inner cylinder and exit through the outer wall of the outer cylinder, and each delivery pipe is equipped with an air pump. The gas supply assembly introduces gas into the hollow plates and the outlet plate through the delivery pipes. The path design of the delivery pipes passing around the top of the inner cylinder and exiting through the outer wall of the outer cylinder avoids interference between the pipes and rotating parts, ensuring that the high-speed rotation of the inner cylinder is not affected. At the same time, the airflow provided by the air pump can precisely match the vortex direction, enhance the wall flow effect, and improve splash prevention and mixing performance.

[0011] As a preferred technical solution, the two delivery pipes are connected by an arc-shaped connecting pipe, and one of the delivery pipes is connected to an external connecting pipe, on which a first valve is installed. The connection between the two delivery pipes via the arc-shaped connecting pipe achieves uniform gas distribution, and the external connecting pipe and the first valve facilitate connection to an external gas source or control of gas flow.

[0012] As a preferred technical solution, each of the conveying pipes is equipped with a filter box, which contains a filter screen and filter cotton. This purifies the gas entering the conveying pipe, removing impurities, dust, or moisture, and preventing contaminants from entering the inner cylinder with the airflow and contaminating the mixed sample.

[0013] As a preferred technical solution, the front outer wall of the filter box is open and fitted with a cover plate, which is fixed to the filter box by fixing bolts located at its four corners. The fixing bolts enable the cover plate to be detachably connected, facilitating the periodic opening of the filter box to replace or clean the filter screen and filter cotton.

[0014] As a preferred technical solution, the system also includes a gas storage tank located on the outside of the base. A sealing cap is threaded onto the gas storage tank, and an outlet pipe connected to the external connecting pipe is installed on the top of the tank. A second valve is installed on the outlet pipe. The gas storage tank can pre-store gas, which is connected to the external connecting pipe via the outlet pipe. It should be noted that storing inert gas in the gas storage tank can effectively prevent the gas introduced into the hollow plate from affecting the raw materials inside the inner cylinder.

[0015] As a preferred technical solution, a U-shaped handle is fixedly installed on the top of the bucket lid. This provides a convenient gripping component for loading and unloading the lid, allowing operators to quickly open or close it.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] This invention utilizes a double-layer structure of an outer and inner cylinder, along with vortex fins on the inner cylinder's annular wall. This creates a stable vortex when the inner cylinder rotates under the drive of a high-speed motor. Before the inner cylinder rotates, airflow aligned with the vortex direction is ejected using a hollow plate and an air outlet plate, initially forming a vortex that gradually expands. This effectively prevents splashing. Furthermore, the airflow constraint and double-layer cylinder wall blockage further prevent liquid splashing while improving mixing efficiency. This achieves the dual functions of splash prevention and efficient mixing. The lid also provides some splash protection. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 In this utility model Figure 1 Internal structure diagram;

[0020] Figure 3 In this utility model Figure 2 Top view after removing the bucket lid;

[0021] Figure 4 This is a schematic diagram of the internal structure of the filter box in this utility model;

[0022] The meanings of the labels in the diagram are as follows:

[0023] 1. Base; 2. Outer cylinder; 20. Lid; 21. Handle; 22. Inner cylinder; 23. Vortex fins; 3. Air tank; 30. Sealing cap; 31. Air outlet pipe; 310. Second valve; 4. Delivery pipe; 40. Air pump; 41. Filter box; 410. Filter screen; 411. Filter cotton; 42. Cover plate; 43. First valve; 44. Outer pipe; 45. Arc-shaped connecting pipe; 5. Support leg; 6. High-speed motor; 7. Hollow plate; 70. Air outlet plate. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figures 1-4 This utility model provides a technical solution:

[0026] A wall-flow vortex-type splash-proof vortex mixer includes a base 1, an outer cylinder 2 fixedly connected to the top of the base 1, an inner cylinder 22 inside the outer cylinder 2, a high-speed motor 6 fixedly installed at the bottom of the base 1, the output shaft of the high-speed motor 6 being coaxially fixed with the inner cylinder 22, a bucket cover 20 threadedly installed at the top of the outer cylinder 2, several equally spaced vortex fins 23 fixedly installed on the inner ring wall of the inner cylinder 22, two hollow plates 7 symmetrically arranged inside the inner cylinder 22, an air outlet plate 70 integrally formed on the hollow plate 7, the air outlets of the two air outlet plates 70 being in the same direction as the vortex fins 23, and an air supply component connected to the two hollow plates 7 installed at the top of the base 1. By setting up a double-layer structure of outer cylinder 2 and inner cylinder 22, and with the vortex fins 23 on the ring wall of inner cylinder 22, a stable vortex is formed when the high-speed motor 6 drives the inner cylinder 22 to rotate. Before the inner cylinder 22 rotates, the hollow plate 7 and the air outlet plate 70 can spray airflow in the same direction as the vortex to initially form a vortex, so that the vortex grows from small to large. This can effectively prevent splashing. The airflow constraint and double-layer cylinder wall blockage also prevent liquid splashing. At the same time, it can also improve the mixing efficiency and achieve the dual functions of splash prevention and high-efficiency mixing. In addition, the lid 20 can also provide a certain splash prevention function.

[0027] As a preferred embodiment, two support legs 5 are symmetrically fixedly installed at the bottom of the base 1. This can stably support the entire mixer and prevent the equipment from shifting or tipping due to vibrations generated during the operation of the high-speed motor 6.

[0028] In a preferred embodiment, the gas supply assembly includes delivery pipes 4 that communicate with the interiors of the two hollow plates 7 respectively. The delivery pipes 4 pass around the top of the inner cylinder 22 and exit through the outer wall of the outer cylinder 2. Each delivery pipe 4 is equipped with an air pump 40. The gas supply assembly introduces gas into the hollow plates 7 and the outlet plates 70 through the delivery pipes 4. The design of the delivery pipes 4 passing around the top of the inner cylinder 22 and exiting through the outer wall of the outer cylinder 2 avoids interference between the pipes and rotating components, ensuring that the high-speed rotation of the inner cylinder 22 is not affected. At the same time, the airflow provided by the air pump 40 can precisely match the vortex direction, enhance the wall flow effect, and improve splash prevention and mixing performance.

[0029] In a preferred embodiment, the two delivery pipes 4 are connected by an arc-shaped connecting pipe 45, and one of the delivery pipes 4 is connected to an external pipe 44, on which a first valve 43 is installed. The two delivery pipes 4 are connected by the arc-shaped connecting pipe 45 to achieve uniform gas distribution, and the external pipe 44 and the first valve 43 facilitate connection to an external gas source or control of gas flow.

[0030] As a preferred embodiment, each delivery pipe 4 is equipped with a filter box 41, and the filter box 41 is equipped with a filter screen 410 and filter cotton 411. This can purify the gas entering the delivery pipe 4, remove impurities, dust or moisture, and prevent pollutants from entering the inner cylinder 22 with the airflow and contaminating the mixed sample.

[0031] In a preferred embodiment, the front outer wall of the filter box 41 is open and fitted with a cover plate 42. The cover plate 42 is fixed to the filter box 41 by fixing bolts located at its four corners. The fixing bolts enable the cover plate 42 to be detachably connected, facilitating the periodic opening of the filter box 41 to replace or clean the filter screen 410 and filter cotton 411.

[0032] As a preferred embodiment, the system also includes a gas storage tank 3 located outside the base 1. A sealing cap 30 is threaded onto the gas storage tank 3, and an outlet pipe 31 communicating with the external connecting pipe 44 is installed on the top of the gas storage tank 3. A second valve 310 is installed on the outlet pipe 31. The gas storage tank 3 can pre-store gas, which is connected to the external connecting pipe 44 via the outlet pipe 31. It should be noted that storing inert gas in the gas storage tank 3 can effectively prevent the gas introduced into the hollow plate 7 from affecting the raw materials inside the inner cylinder 22.

[0033] In a preferred embodiment, a handle 21 is fixedly installed on the top of the lid 20. The handle 21 is U-shaped. This provides a convenient gripping component for loading and unloading the lid 20, allowing operators to quickly open or close the lid 20.

[0034] When using the wall-flow vortex anti-splash vortex mixer of this utility model...

[0035] First, the operator uses the U-shaped handle 21 on the top of the outer cylinder 2 to unscrew the threaded cap 20. The container containing the liquid or solid-liquid mixture to be mixed (such as a test tube or centrifuge tube) is then placed inside the inner cylinder 22. The cap 20 is then closed, and its sealing and shielding properties initially create a splash barrier. If inert gas is required to prevent its influence on the mixing materials, the sealing cap 30 of the gas storage tank 3 can be opened, inert gas injected into the tank, and then the sealing cap 30 closed, completing the gas source preparation.

[0036] Before starting the gas supply assembly, select the gas source according to requirements: If using an external gas source, connect to the external gas line through the external pipe 44 and open the first valve 43; if using the gas storage tank 3, open the second valve 310 on the outlet pipe 31 to allow the gas (or inert gas) in the gas storage tank 3 to enter the delivery pipe 4. Then, start the air pump 40 on the delivery pipe 4. When the gas is transported through the delivery pipe 4, it first passes through the filter screen 410 and filter cotton 411 in the filter box 41 to remove impurities, dust, or moisture, ensuring clean gas enters the equipment. The clean gas flows along the path of "delivery pipe 4—hollow plate 7—outlet plate 70". The ejected airflow initially forms a weak vortex flowing along the wall inside the inner cylinder 22. Simultaneously, the airflow pre-constrains the liquid flow direction, preventing the liquid from splashing due to inertia caused by the sudden rotation of the inner cylinder 22.

[0037] After the airflow pre-swirl has been initiated for a period of time (ensuring that the liquid has initially adapted to the flow trend along the wall), the high-speed motor 6 at the bottom of the base 1 is started. The output shaft of the high-speed motor 6 is coaxially fixed with the inner cylinder 22, driving the inner cylinder 22 to rotate around the axis at high speed. The vortex fins 23, which are evenly spaced on the annular wall of the inner cylinder 22, rotate synchronously with the inner cylinder 22, providing a forced guidance effect on the liquid that has initially formed a weak vortex.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A wall-flow vortex type splash-proof vortex mixer, characterized in that: The system includes a base (1), an outer cylinder (2) fixedly connected to the top of the base (1), an inner cylinder (22) inside the outer cylinder (2), a high-speed motor (6) fixedly installed at the bottom of the base (1), the output shaft of the high-speed motor (6) being coaxially fixed with the inner cylinder (22), a bucket cover (20) threadedly installed at the top of the outer cylinder (2), several equally spaced vortex fins (23) fixedly installed on the inner ring wall of the inner cylinder (22), two hollow plates (7) symmetrically arranged inside the inner cylinder (22), an air outlet plate (70) integrally formed on the hollow plate (7), the air outlets of the two air outlet plates (70) are in the same direction as the vortex fins (23), and an air supply component connected to the two hollow plates (7) is installed at the top of the base (1).

2. The wall-flow vortex anti-splash vortex mixer as described in claim 1, characterized in that: The base (1) has two support legs (5) symmetrically fixedly installed at its bottom.

3. The wall-flow vortex anti-splash vortex mixer as described in claim 2, characterized in that: The air supply assembly includes a delivery pipe (4) that communicates with the interior of two hollow plates (7) respectively. The delivery pipe (4) passes around the top of the inner cylinder (22) and exits through the outer wall of the outer cylinder (2). Each delivery pipe (4) is equipped with an air pump (40).

4. The wall-flow vortex anti-splash vortex mixer as described in claim 3, characterized in that: The two conveying pipes (4) are connected by an arc-shaped connecting pipe (45), and one of the conveying pipes (4) is connected to an external pipe (44), on which a first valve (43) is installed.

5. The wall-flow vortex anti-splash vortex mixer as described in claim 4, characterized in that: Each of the conveying pipes (4) is equipped with a filter box (41), and the filter box (41) contains a filter screen (410) and filter cotton (411).

6. The wall-flow vortex anti-splash vortex mixer as described in claim 5, characterized in that: The front outer wall of the filter box (41) is open and a cover plate (42) is installed thereon. The cover plate (42) is fixed to the filter box (41) by fixing bolts located at its four corners.

7. The wall-flow vortex anti-splash vortex mixer as described in claim 6, characterized in that: It also includes an air tank (3) located outside the base (1), a sealing cap (30) is threaded onto the air tank (3), an air outlet pipe (31) connected to the external connecting pipe (44) is installed on the top of the air tank (3), and a second valve (310) is installed on the air outlet pipe (31).

8. The wall-flow vortex anti-splash vortex mixer as described in claim 7, characterized in that: A handle (21) is fixedly installed on the top of the bucket lid (20), and the handle (21) is U-shaped.

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