CN113769628B - Intelligence magnetic stirring heating device - Google Patents

Abstract

The invention discloses an intelligent magnetic stirring heating device, which comprises a stirring heating system and an intelligent control system. The magnet is placed in the center of the upper part of the magnet frame, and is powered by the motor below it to rotate around the axis, thereby driving the stirring bar in the reaction vessel to rotate. The rotational speed of the motor is set by the intelligent control system and detected by the magnetic sensor of the magnet; the rotational speed of the stirring bar is detected by the magnetic sensor group of the stirring bar. If the speed of the stirrer is inconsistent with the motor speed, it means that the stirrer is running abnormally. At this time, the intelligent control system will automatically adjust the speed to be consistent with the two, so that the stirrer can run stably. The heating system can heat and control the temperature according to specific experimental requirements. The method provided by the invention can monitor the running state of the stirring bar in real time through the magnetic sensor. If there is any abnormality, the intelligent control system will adjust to the normal state in time, which is of great significance to the uniform mixing of the sample and the stable progress of the chemical reaction.

Description

An intelligent magnetic stirring heating device

technical field

The invention belongs to the technical field of agitators, in particular to an intelligent magnetic stirring heating device.

Background technique

Magnetic stirrers are laboratory instruments for liquid mixing, mainly for stirring or simultaneously heating and stirring liquid or solid-liquid mixtures. The basic principle is to use the magnetic field to push the magnetic stirring bar placed in the container to rotate in a circle, so as to achieve the purpose of stirring the liquid. With the heating system, the temperature can be heated and controlled according to the specific experimental requirements to ensure that the liquid mixing meets the experimental requirements. However, the existing stirring device cannot know the actual state of stirring. If the stirring is abnormal, the reactants will be unevenly mixed, and local overheating will occur, thereby affecting the chemical reaction process.

SUMMARY OF THE INVENTION

The present invention proposes an intelligent magnetic stirring heating device to solve the problem that the existing stirring device cannot know the actual state of stirring.

For this purpose, the present invention adopts the following technical solutions:

An intelligent magnetic stirring heating device, comprising a stirring heating system and an intelligent control system; the stirring heating system sequentially includes a reaction vessel, a heating system, a heat insulation pad, and a bracket from top to bottom, and a magnet control system is arranged inside the bracket, and the said The magnet control system includes a magnet, a magnet frame and a motor in sequence from top to bottom. A stirring bar is arranged inside the reaction vessel, and a magnetic sensor group of the stirring bar is arranged on the outer bottom side of the reaction vessel. The magnetic sensor group of the stirring bar is connected to the stirring bar. Located in the same horizontal plane, the side of the bracket is provided with the magnetic sensor of the magnet, the magnetic sensor of the magnet and the magnet are located in the same horizontal plane, the magnetic sensor group of the stirring bar, the heating system, the magnetic sensor of the magnet and the electrical signal of the intelligent control system connect.

Further, in the above technical solution, the heating system includes a heating rod and a temperature sensing device, and the heating rods are evenly arranged in the heating system, so that the reaction vessel is heated evenly.

Further, in the above technical solution, the reaction vessel, the heating system, the temperature sensing device, the heat insulation pad, the magnet, the magnet frame, and the motor are on the same axis.

Further, in the above technical solution, the rotational speed of the motor is set by an intelligent control system, detected by the magnetic sensor of the magnet and displayed as SV; the rotational speed of the stirring bar is detected by the magnetic sensor group of the stirring bar and displayed as PV; the described The temperature of the heating system is set and regulated by an intelligent control system.

Further, in the above technical solution, the magnetic sensor group of the stirring bar includes at least two magnetic sensors, and the included angle cannot be 180°C.

Further, in the above technical solution, the magnetic sensor of the magnet is perpendicular to the side surface of the bracket.

Further, in the above technical solution, the temperature of the heating system is between room temperature and 400° C. to prevent the stirrer from losing its magnetism due to excessive temperature.

Further, in the above technical solution, the bottom of the bracket is provided with a base.

Further, in the above technical solution, the motor includes a stepping motor.

Further, in the above technical solution, the magnet is placed in the center of the upper part of the magnet frame, and the motor below it provides power to rotate around the axis, thereby driving the stirring bar in the reaction vessel to rotate; when the stirring bar is running normally, the intelligent control system displays The stirrer speed PV is consistent with the motor speed SV; if the stirrer speed PV is inconsistent with the motor speed SV, it means that the stirrer is in an abnormal state. At this time, the intelligent control system will automatically adjust the motor speed until the stirrer speed PV is consistent with the motor speed SV. , so that the stirrer operates stably.

beneficial effect

The invention can monitor the stirring state in real time, and if there is any abnormality, the intelligent control system will adjust to the normal state in time, which is of great significance to the uniform mixing of the samples and the stable progress of the chemical reaction.

Description of drawings

The accompanying drawings further illustrate the present invention, but the content in the accompanying drawings does not constitute any limitation to the present invention.

Fig. 1 is an intelligent magnetic stirring heating device of the present invention.

In the figure, 1-reaction vessel; 2-magnetic sensor group of stirring bar; 3-magnetic sensor of magnet; 4-stirring bar; 5-heating system; 6-heating rod; 7-temperature sensing device; 8-heat insulation pad ; 9-stand; 10-magnet; 11-magnet frame; 12-motor; 13-base; 14-intelligent control system.

Detailed ways

It should be noted that the embodiments of the present invention and the features of the embodiments may be combined with each other under the condition of no conflict. The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

In order to make the purposes, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments It is only a part of the embodiments of the present invention, but not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

It should be noted that the terminology used herein is for the purpose of describing specific embodiments only, and is not intended to limit the exemplary embodiments according to the present invention. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural as well, furthermore, it is to be understood that when the terms "comprising" and/or "including" are used in this specification, it indicates that There are features, steps, operations, devices, components and/or combinations thereof.

The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the invention unless specifically stated otherwise. Meanwhile, it should be understood that, for convenience of description, the dimensions of various parts shown in the accompanying drawings are not drawn in an 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 limiting. Accordingly, other examples of exemplary embodiments may have different values. It should be noted that like numerals and letters refer to like items in the following figures, so once an item is defined in one figure, it does not require further discussion in subsequent figures.

In the description of the present invention, it should be understood that the orientations indicated by orientation words such as "front, rear, top, bottom, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" etc. Or the positional relationship is usually based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and these orientation words do not indicate or imply the indicated device or element unless otherwise stated. It must have a specific orientation or be constructed and operated in a specific orientation, so it should not be construed as a limitation on the scope of protection of the present invention: the orientation words "inside and outside" refer to the inside and outside relative to the contour of each component itself.

Example 1

As shown in FIG. 1, an intelligent magnetic stirring heating device in this embodiment includes a stirring heating system and an intelligent control system 14; the stirring heating system includes a reaction vessel 1, a magnetic sensor group 2 of a stirring bar, and a magnetic sensor of a magnet 3. Stirrer 4, heating system 5, heat insulation pad 8, bracket 9, magnet 10, magnet frame 11, motor 12 and base 13, the heating system 5 is provided with a heating rod 6 and a temperature sensing device 7 inside.

The magnet 10 is placed in the center of the upper part of the magnet frame 11 , and the motor 12 below the magnet 10 provides power to rotate around the axis, thereby driving the stirring bar 4 in the reaction vessel 1 to rotate. The outer bottom side of the reaction vessel 1 is provided with a magnetic sensor group 2 of a stirring bar, the magnetic sensor group 2 of the stirring bar and the stirring bar 4 are located in the same horizontal plane, and the side of the support 9 is provided with a magnetic sensor 3 of a magnet, the magnet The magnetic sensor 3 and the magnet 10 are located in the same horizontal plane. The magnetic sensor group 2 of the stirring bar, the heating system 5 and the magnetic sensor 3 of the magnet are connected with the intelligent control system 14 by electrical signals.

The rotational speed of the motor 12 is set by the intelligent control system 14, detected by the magnetic sensor 3 of the magnet and displayed as SV; the rotational speed of the stirring bar 4 is detected by the magnetic sensor group 2 of the stirring bar and displayed as PV. When the stirrer is running normally, the stirrer speed PV displayed by the intelligent control system 14 is consistent with the motor speed SV; if the stirrer rotates disorderly due to the high motor speed and other reasons, the PV value will fluctuate, indicating that the stirrer is in an abnormal operating state. At this time, the intelligent control system 14 will appropriately reduce the rotational speed of the motor to the same level, so that the stirrer can run stably. The temperature of the heating system 5 is set and regulated by the intelligent control system 14 .

Further, the heating rods 6 are evenly arranged in the heating system 5 to ensure that the reaction vessel 1 is heated evenly.

Further, the reaction vessel 1 , the heating system 5 , the temperature sensing device 7 , the thermal insulation pad 8 , the magnet 10 , the magnet frame 11 , and the motor 12 are on the same axis.

Further, the magnetic sensor group 2 of the stirring bar includes at least two magnetic sensors, and the included angle cannot be 180°C. Preferably, as one of the embodiments, two magnetic sensors can meet general requirements, and when the included angle is 90°C, it is easy to process and beautiful.

Further, as one of the embodiments, the magnetic sensor 3 of the magnet is perpendicular to the left side of the bracket 9 .

Further, the temperature of the heating system 5 is between room temperature and 400° C. to prevent the stirrer from losing its magnetism due to excessive temperature.

Further, as one of the embodiments, the motor 12 may be a stepping motor.

When in use, add the liquid-liquid or solid-liquid mixture to be stirred or heated and stirred at the same time into the reaction vessel 1, start the heating rod 6 of the heating system, so that the reaction vessel is heated and heated evenly; It is driven to rotate at a constant speed, thereby driving the stirring bar 4 in the reaction vessel 1 to rotate; the monitoring intelligent control system 14 is used to set and adjust the reaction temperature and monitor the operating condition of the stirring bar.

When the stirrer is running normally, the stirrer speed PV displayed by the intelligent control system 14 is consistent with the motor speed SV; if the stirrer speed PV is inconsistent with the motor speed SV, it means that the stirrer is in an abnormal state, and the intelligent control system 14 will automatically Adjust the speed of the motor until the speed of the stirrer PV is consistent with the speed of the motor SV, so that the stirrer runs stably, the reactants are mixed evenly, and the chemical reaction process affected by local overheating is avoided.

The technical principle of the present invention has been described above with reference to the specific embodiments. These descriptions are only for explaining the principle of the present invention, and should not be construed as limiting the protection scope of the present invention in any way. Based on the explanations herein, those skilled in the art can think of other specific embodiments of the present invention without creative efforts, and these equivalent modifications or substitutions are all included within the scope defined by the claims of the present application.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: The technical solutions described in the foregoing embodiments can still be modified, or some or all of the technical features thereof can be equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the embodiments of the present invention. scope.

Claims (6)

1. an intelligent magnetic stirring heating device, characterized in that: comprising a stirring heating system and an intelligent control system (14); the stirring heating system comprises a reaction vessel (1), a heating system (5), a spacer The heat pad (8), the bracket (9), and a magnet control system is arranged inside the bracket (9), and the magnet control system sequentially includes a magnet (10), a magnet frame (11) and a motor (12) from top to bottom. A stirring rod (4) is provided inside the container (1), and a magnetic sensor group (2) of the stirring rod is provided on the outer bottom side of the reaction container (1), and the magnetic sensor group (2) of the stirring rod is connected with the stirring rod (4). ) are located in the same horizontal plane, the side of the bracket (9) is provided with a magnetic sensor (3) of a magnet, the magnetic sensor (3) of the magnet and the magnet (10) are located in the same horizontal plane, and the magnetic sensor group ( 2), the heating system (5), the magnetic sensor (3) of the magnet and the intelligent control system (14) are connected with electrical signals; the magnetic sensor group (2) of the stirring bar includes at least 2 magnetic sensors, and the included angle cannot be 180 degree; The rotational speed of the motor (12) is set by the intelligent control system (14), detected by the magnetic sensor (3) of the magnet and displayed as SV; the rotational speed of the stirring bar (4) is detected by the magnetic sensor group (2) of the stirring bar and displayed as PV; the temperature of the heating system (5) is set and regulated by the intelligent control system (14); The magnet (10) is placed in the upper center of the magnet frame (11), and is powered by the motor (12) below it to rotate around the axis, thereby driving the stirring bar (4) in the reaction vessel (1) to rotate; when the stirring bar is running When it is normal, the stirring bar speed PV displayed by the intelligent control system (14) is consistent with the motor speed SV; if the stirring bar speed PV is inconsistent with the motor speed SV, it means that the stirring bar is in an abnormal state, and the intelligent control system (14) will automatically Adjust the motor speed until the stirrer speed PV is consistent with the motor speed SV, so that the stirrer runs stably; The heating system (5) includes a heating rod (6) and a temperature sensing device (7), and the heating rods (6) are evenly arranged in the heating system (5), so that the reaction vessel (1) is heated evenly. 2. The intelligent magnetic stirring heating device according to claim 1, characterized in that: the reaction vessel (1), the heating system (5), the temperature sensing device (7), the thermal insulation pad (8), the magnet (10) ), the magnet frame (11), and the motor (12) are on the same axis. 3 . The intelligent magnetic stirring heating device according to claim 1 , wherein the magnetic sensor ( 3 ) of the magnet is perpendicular to the side surface of the bracket ( 9 ). 4 . 4 . The intelligent magnetic stirring heating device according to claim 1 , wherein the temperature of the heating system ( 5 ) is from room temperature to 400° C. 5 . 5 . The intelligent magnetic stirring heating device according to claim 1 , wherein a base ( 13 ) is provided at the bottom of the bracket ( 9 ). 6 . 6. The intelligent magnetic stirring heating device according to claim 1, wherein the motor (12) comprises a stepping motor.

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