Magnetic stirring device

Abstract

The utility model discloses a magnetic stirring device which comprises a magnetic stirrer main body and a magnetic tray, the magnetic tray is arranged at the top of the magnetic stirrer, a container is arranged on the magnetic tray, an annular jacket is sleeved outside the container, and a magnetic stirrer is arranged in the container. According to the magnetic stirring device provided by the utility model, the container is heated through the annular jacket, and the bottom of the container is directly contacted with the magnetic tray, so that the stirring force of the magnetic stirrer is ensured, and the magnetic stirring device is suitable for stirring and mixing a solution with higher viscosity.

Description

Technical Field

[0001] This utility model belongs to the technical field of stirring devices, specifically relating to a magnetic stirring device. Background Technology

[0002] Magnetic stirring devices typically use a rotating magnetic field generator to rotate a magnetic stir bar inside a container, thereby stirring the solution. For solutions with high viscosity, preheating is usually necessary. A typical water bath jacket increases the distance between the container and the magnetic field generator, thus reducing the influence of the magnetic field on the magnetic stir bar and lowering its stirring force. Utility Model Content

[0003] The purpose of this invention is to provide a magnetic stirring device that solves the problem in related technologies where the water bath jacket affects the stirring force of the magnetic stir bar.

[0004] Therefore, this utility model provides a magnetic stirring device, including: a magnetic stirrer body and a magnetic tray, the magnetic tray being installed on the top of the magnetic stirrer, a container being placed on the magnetic tray, the container being fitted with an annular sleeve, and a magnetic stir bar being disposed inside the container.

[0005] Preferably, a baffle is provided on the inner side wall of the container, and there are multiple baffles evenly distributed along the circumference of the container.

[0006] Preferably, the ratio of the bottom of the baffle to the bottom of the container to the diameter of the container is in the range of 1:6 to 1:4.

[0007] Preferably, the ratio of the height of the baffle to the diameter of the container is in the range of 1:10 to 1:8.

[0008] Preferably, the inner wall of the annular jacket is in contact with the outer wall of the container.

[0009] Preferably, a hot water chamber is provided inside the annular jacket, and an inlet and an outlet are provided on the outer wall of the annular jacket, which are connected to the hot water chamber.

[0010] Preferably, the height of the inlet is lower than the height of the outlet.

[0011] Preferably, the magnetic stirrer body is provided with a support, and a temperature sensor is suspended on the support, the temperature sensor being inside the container.

[0012] Preferably, the magnetic stirrer body is provided with a control panel.

[0013] Preferably, the bottom of the magnetic stirrer body is provided with a fixed support leg, and the bottom of the fixed support leg is provided with an anti-slip pad.

[0014] Beneficial effects:

[0015] 1. This utility model provides a magnetic stirring device that heats the container through an annular jacket, with the bottom of the container directly contacting the magnetic tray to ensure the stirring force of the magnetic stir bar, which is suitable for stirring and mixing solutions with high viscosity.

[0016] 2. Without baffles inside the container, the magnetic stir bar rotates under the influence of the rotating magnetic field, forming a roughly circular flow pattern in the liquid. This circular flow is particularly pronounced in high-viscosity liquids and can lead to uneven mixing and dead zones within the container. The container in this invention is equipped with baffles, which obstruct the circular flow. When the liquid flows along the container wall and encounters the baffles, its flow direction is forced to change, breaking the original circular flow pattern and allowing the liquid to flow more complexly within the container. The liquid needs to navigate around the baffles, flow between the baffles, and flow up and down over the baffles, thus improving the mixing effect. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of a magnetic stirring device provided by this utility model.

[0019] Figure 2 A cross-sectional view of the container and annular jacket of Embodiment 1 of the magnetic stirring device provided by this utility model.

[0020] In the diagram, 1-magnetic stirrer body, 2-magnetic tray, 3-container, 31-baffle, 4-annular jacket, 41-hot water chamber, 42-water inlet, 43-water outlet, 5-magnetic stir bar, 6-support, 7-temperature sensor, 8-control panel, 9-fixed support leg. Detailed Implementation

[0021] The following detailed description of preferred embodiments of the present invention, along with the included examples, will make the content of the present invention more readily understood. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. In case of any conflict, the definitions in this specification shall prevail.

[0022] Example 1:

[0023] Provided such as Figure 1-2 The magnetic stirring device shown includes: a magnetic stirrer body 1 and a magnetic tray 2. The magnetic tray 2 is installed on the top of the magnetic stirrer. A container 3 is placed on the magnetic tray 2. An annular jacket 4 is attached to the container 3. A magnetic stir bar 5 is provided inside the container 3.

[0024] Multiple baffles 31 are provided on the inner wall of container 3, evenly distributed along the circumference of container 3. The ratio of the bottom of baffle 31 to the bottom of container 3 and the diameter of container 3 is in the range of 1:6 to 1:4. The ratio of the height of baffle 31 to the diameter of container 3 is in the range of 1:10 to 1:8. In this embodiment, four baffles 31 are provided, evenly distributed along the circumference of container 3. The diameter of container 3 is 100mm, and the height of baffle 31 is 10mm-12.5mm. This height range can effectively interfere with the vertical and horizontal flow of liquid without excessively hindering the rotation of the stir bar. The distance from the bottom of baffle 31 to the bottom of container 3 is 17mm-25mm. The bottom of baffle 31 should have a certain gap from the bottom of container 3 to allow for good circulation of liquid at the bottom.

[0025] The inner wall of the annular jacket 4 is fitted against the outer wall of the container 3. A hot water chamber 41 is provided inside the annular jacket 4. An inlet 42 and an outlet 43 are provided on the outer wall of the annular jacket 4, and the inlet 42 and outlet 43 are connected to the hot water chamber 41. The height of the inlet 42 is lower than the height of the outlet 43. The annular jacket 4 is connected to a water heater through the inlet 42 and outlet 43, and the hot water circulates within the annular jacket 4 to ensure heating of the solution in the container 3.

[0026] A support 6 is mounted on the main body 1 of the magnetic stirrer, and a temperature sensor 7 is suspended on the support 6. The temperature sensor 7 is located inside the container 3. The temperature sensor 7 is used to detect the temperature of the solution.

[0027] A control panel 8 is provided on the main body 1 of the magnetic stirrer. The main body 1 contains a rotating magnetic field generator that controls the rotation of the magnetic field, and the control panel 8 is used to control the speed of the magnetic field rotation. The rotating magnetic field generator can be selected from a motor-driven rotating magnetic field generator, an electromagnetic induction rotating magnetic field generator, or an electronically controlled rotating magnetic field generator.

[0028] The magnetic stirrer body 1 has a fixed support leg 9 at its bottom, and the bottom of the fixed support leg 9 is equipped with an anti-slip pad. The fixed support leg 9 is used to stabilize the magnetic stirrer body 1, and the anti-slip pad is used to prevent the fixed support leg 9 from sliding.

[0029] Working principle: Place container 3 on magnetic tray 2, place magnetic stir bar 5 inside container 3, heat container 3 through annular jacket 4, and detect the temperature of the solution inside container 3 through temperature sensor 7. After the solution is preheated, the viscosity is reduced. Then start the magnetic stir bar body 1, so that the magnetic field rotates and drives the magnetic stir bar 5 to rotate inside container 3, and the solution is stirred evenly.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A magnetic stirring device, characterized by The utility model relates to a magnetic stirrer and a container for the magnetic stirrer. The utility model discloses a magnetic stirrer and a container for the magnetic stirrer. The container is provided with a magnetic stirrer inside. The container is provided with a plurality of baffles on the inner side wall.

2. A magnetic stirring device according to claim 1, characterized in that The ratio of the height of the baffle to the diameter of the container is 1:10-1:

8.

3. A magnetic stirring device according to claim 2, wherein The height of the water inlet is lower than that of the water outlet.

4. A magnetic stirring device according to claim 2, wherein The magnetic stirrer is provided with a support on the top, and a temperature sensor is hung on the support.

5. A magnetic stirring device according to claim 1, wherein The magnetic stirrer is provided with a control panel.

6. A magnetic stirring device according to claim 1, wherein The bottom of the magnetic stirrer is provided with a fixed support leg, and the bottom of the fixed support leg is provided with an anti-skid pad.

7. A magnetic stirring device according to claim 1, wherein ​ 8. A magnetic stirring device according to claim 1, wherein ​

Images