Vacuum magnetic stirring device

Abstract

The utility model discloses a vacuum magnetic stirring device which comprises a magnetic stirring machine and a box body arranged on the magnetic stirring machine, a magnetic stirring table for placing a reaction container and an exhaust hole are arranged in an area, corresponding to the box body, of the magnetic stirring machine, a sealing cover is detachably connected to the top of the box body, and a pressure relief device is arranged on the sealing cover. The magnetic stirrer is provided with a magnetic stirring device, a magnetic coupling switch, a vacuum pump connected with the exhaust hole, a vacuum switch corresponding to the vacuum pump, a power switch and a display screen; the magnetic stirrer is arranged in the reaction container during stirring reaction. The stirrer has the advantages that the stirrer can be used for vacuumizing while dispersing and heating a mixture, has the functions of heating, stirring and quickly defoaming, and can prevent the mixture from being splashed due to bumping when stirring with chemical reaction is carried out in a closed container; the container interior is easy to clean.

Description

TECHNICAL FIELD

[0001] The utility model relates to an experimental instrument technical field especially relates to vacuum stirring device. BACKGROUND

[0002] The magnetic stirring machine is a kind of experimental stirring device that uses magnetic stirring and can simultaneously heat and stir low viscous liquid or solid-liquid mixture.It is mainly used for mixing, heating and batching liquid in chemical industry, pharmacy, food industry and other industries in actual life and work.It uses the principle that magnetic field homogeneity repels and heterogeneity attracts to drive the magnetic stirring sub placed in container to make circumferential motion, thereby achieving the purpose of stirring liquid or solid-liquid mixture.

[0003] The existing magnetic stirring device often produces a large amount of bubbles when stirring reaction of experimental sample, and these bubbles will have great influence on the performance of sample if not treated.If sample is vacuumed after stirring ends, not only experimental time is delayed, time is wasted, but also experimental result is influenced, and when mixture reaction speed is fast, such as curing reaction of epoxy resin, reactant will react in vacuuming stage.This deaeration opportunity is inappropriate for many chemical reactions with fast reaction speed.It can be seen that the existing magnetic stirring device is difficult to meet experimental demand, and if a device that can remove bubbles while magnetic stirring can be provided, it will provide great convenience for experimental operation. SUMMARY

[0004] The utility model discloses a kind of vacuum magnetic stirring devices, to solve the problem that existing magnetic stirring device cannot remove bubble influence experiment while stirring.

[0005] In order to achieve the above purpose, the utility model uses the following technical solutions:

[0006] A kind of vacuum magnetic stirring device, including magnetic stirring machine, box body being installed on magnetic stirring machine, the area of magnetic stirring machine corresponding box body is equipped with magnetic stirring platform of placing reaction container and exhaust hole, the top of box body is detachably connected with sealing cover, the sealing cover is equipped with pressure relief device, the magnetic stirring machine is equipped with corresponding magnetic stirring device and magnetic coupling switch of the magnetic stirring platform, vacuum pump connected with exhaust hole, corresponding vacuum switch of vacuum pump, power switch, display screen;

[0007] It further includes magnetic stirring sub placed in reaction container during stirring reaction.

[0008] Further, the magnetic stirring platform is not less than 2, each magnetic stirring platform has corresponding magnetic stirring device and magnetic coupling switch and is controlled individually.

[0009] Further, the magnetic stirring table is made of heat-conductive material, and the magnetic stirrer is provided with a heating device and a temperature control device corresponding to the magnetic stirring table.

[0010] Further, the magnetic stirrer is provided with a control device for controlling the magnetic stirring device, the heating device, the temperature control device, the vacuum pump and the display screen.

[0011] Further, the display screen is provided with temperature adjustment buttons corresponding to the heating device and the temperature control device.

[0012] Further, the exhaust hole is located at the center of the bottom of the box.

[0013] Further, the pressure relief device comprises a pressure relief valve and a pressure gauge.

[0014] Further, the sealing cover is connected with a sealing ring matched with the top of the box.

[0015] The utility model discloses a magnetic stirring device for mixing, heating and vacuumizing, which comprises a box, a magnetic stirring device, a heating device, a temperature control device, a vacuum pump and a display screen. BRIEF DESCRIPTION OF DRAWINGS

[0016] The accompanying drawings, which are included to provide a further understanding of the utility model and constitute a part of the application, illustrate the utility model and do not constitute an improper limitation on the utility model, and in the drawings:

[0017] Fig. 1 is the cross section structure schematic diagram of the utility model embodiment;

[0018] Fig. 2 is the structure schematic diagram of the sealing cover cover on the box;

[0019] Magnetic stirrer 1, sealing cover 2, sealing ring 21, box 3, magnetic stirring table 4, display screen 5, magnetic coupling switch 6, vacuum switch 7, power switch 8, exhaust hole 9, pressure relief valve 10, pressure gauge 11 DETAILED DESCRIPTION

[0020] The utility model will be described in detail below in combination with the drawings and specific embodiment, and here with the utility model's illustrative embodiment and the explanation are used to explain the utility model, but do not as the limitation of the utility model.

[0021] As Figs. 1-2As shown, a vacuum magnetic stirring device comprises a magnetic stirrer 1, a box body 3 mounted on the magnetic stirrer 1, the magnetic stirrer 1 is provided with a magnetic stirring table 4 for placing a reaction container and an exhaust hole 9 corresponding to the area of the box body 3, a sealing cover 2 is detachably connected to the top of the box body 3, the sealing cover 2 is provided with a pressure relief device, the magnetic stirrer 1 is provided with a magnetic stirring device corresponding to the magnetic stirring table 4, a magnetic coupling switch 6, a vacuum pump connected with the exhaust hole 9, a vacuum switch 7 corresponding to the vacuum pump, a power switch 8, and a display screen 5.

[0022] The magnetic stirring device further comprises a magnetic stirring rod placed in the reaction container during stirring.

[0023] The magnetic stirring table 4 is not less than two, and each magnetic stirring table 4 is controlled by a corresponding magnetic stirring device and a magnetic coupling switch 6.

[0024] The magnetic stirring table 4 is made of heat-conducting material, and the magnetic stirrer 1 is provided with a heating device and a temperature control device corresponding to the magnetic stirring table 4.

[0025] The magnetic stirrer 1 is provided with a control device for controlling the magnetic stirring device, the heating device, the temperature control device, the vacuum pump, and the display screen 5.

[0026] The display screen 5 is provided with a temperature adjusting button corresponding to the heating device and the temperature control device.

[0027] The exhaust hole 9 is located at the center of the bottom of the box body 3.

[0028] The pressure relief device comprises a pressure relief valve 10 and a pressure gauge 11.

[0029] The sealing cover 2 is connected with a sealing ring matched with the top of the box body 3.

[0030] When the device is used, a beaker containing a mixture and a magnetic rotor is placed on the magnetic stirring table 4 in the box body 3, the sealing cover 2 is covered, the power switch 8 is pressed, the temperature is adjusted through the display screen 5, the corresponding magnetic coupling switch 6 is turned on, the speed is adjusted, the vacuum switch 7 is pressed, and the box body 3 is vacuumized at this time, so as to achieve the purpose of vacuum heating and stirring. If vacuum and heating are not required, the corresponding switches do not need to be turned on. After stirring, the magnetic coupling switch 6 and the vacuum switch 7 are turned off, the temperature is adjusted, the power switch 8 is turned off, the pressure relief valve 10 is slowly opened for pressure relief (air intake), and when the pressure gauge 11 shows zero, the sealing cover 2 is opened to take out the beaker, and the inside of the box body can be cleaned.

[0031] Of course, in some embodiments, the structure of the connection between the sealing cover 2 and the box 3 can be designed with reference to the structure of the cover of a pressure cooker. Or other structures that can achieve detachable connection sealing can also be implemented. Those skilled in the art can extend and expand according to the content disclosed in the present application combined with conventional technical means.

[0032] The above describes the technical solutions provided by the embodiments of the present application in detail. The principles and implementation manners of the embodiments of the present application are described by applying specific examples. The above description of the embodiments is only applicable to helping understand the principles of the embodiments of the present application. Meanwhile, for those skilled in the art, the embodiments of the present application will have changes in specific implementation manners and application ranges. In summary, the content of the present application should not be understood as a limitation of the present application.

Claims

1. A vacuum magnetic stirring device, comprising a magnetic stirrer and a housing mounted on the magnetic stirrer, characterized in that: The magnetic stirrer has a magnetic stirring table for placing the reaction vessel and an exhaust port in the area corresponding to the housing. The top of the housing is detachably connected to a sealing cover, which is equipped with a pressure relief device. The magnetic stirrer is equipped with a magnetic stirring device and a magnetic coupling switch corresponding to the magnetic stirring table, a vacuum pump connected to the exhaust port, a vacuum switch corresponding to the vacuum pump, a power switch, and a display screen. It also includes a magnetic stir bar placed inside the reaction vessel during the stirring reaction.

2. The vacuum magnetic stirring device according to claim 1, characterized in that: There are no fewer than two magnetic stirring tables, and each magnetic stirring table has a corresponding magnetic stirring device and a magnetic coupling switch for individual control.

3. The vacuum magnetic stirring device according to claim 1, characterized in that: The magnetic stirring table is made of a heat-conducting material, and the magnetic stirrer is equipped with a heating device and a temperature control device corresponding to the magnetic stirring table.

4. The vacuum magnetic stirring device according to claim 2, characterized in that: The magnetic stirrer is equipped with a control device that controls the magnetic stirring device, heating device, temperature control device, vacuum pump, and display screen.

5. The vacuum magnetic stirring device according to claim 1, characterized in that: The display screen is equipped with temperature adjustment buttons corresponding to the heating device and temperature control device.

6. The vacuum magnetic stirring device according to claim 1, characterized in that: The vent is located at the center of the bottom of the housing.

7. The vacuum magnetic stirring device according to claim 1, characterized in that: The pressure relief device includes a pressure relief valve and a pressure gauge.

8. The vacuum magnetic stirring device according to claim 1, characterized in that: The edge of the sealing cover is connected to a sealing ring that matches the top of the box.

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