Chemical reactor experimental teaching aid

Abstract

This invention discloses a chemical reactor experimental teaching aid, including a support base (1), a reactor (2) positioned above the support base (1) in the middle; a fixing device (11) on both sides of the support base (1) for fixing the reactor (2); a driving device (3) for driving a stirring and cleaning integrated device (5); the stirring and cleaning integrated device (5) includes a rotating shaft (51) connected to the driving shaft of the driving device (3), a cleaning device (54) connected to the bottom of the rotating shaft (51), and a supporting sleeve (53) provided outside the rotating shaft (51). The supporting sleeve (53) has an inverted T-shaped structure, and the bottom of the supporting sleeve (53) has a groove structure to cover and wrap the cleaning device (54); the top of the supporting sleeve (53) is provided with a buckle (14) for filling the gap between the driving device (3) and the top of the supporting sleeve (53). This invention realizes the application of teaching experimental teaching aids in different scenarios by setting a stirring and cleaning integrated device in the reactor, so that the cleaning and stirring operations of the experimental teaching aids can be quickly realized through the same device.

Description

Technical Field

[0001] This invention relates to the field of teaching aids technology, specifically to a chemical reactor experimental teaching aid. Background Technology

[0002] In practical chemistry courses, only demonstrations of routine chemical instrument operation are typically conducted. However, for complex reactions in chemical production, the reaction equipment used is mostly reaction vessels and sealed containers, which students cannot intuitively understand. While using glass flasks and test tubes provides a direct view, safety is not guaranteed. Furthermore, because these reactions are slow and have long waiting periods, common solutions include rapid heating or stirring to accelerate the reaction rate. For example, patent CN208482442U showcases a reaction vessel teaching aid for chemistry. The entire device is designed to handle the stirring of reagents of different volumes, offering high stirring efficiency and solving the problem of cumbersome stirring operations. Cleaning the reaction vessel prevents reaction residues from mixing with other chemical experiments, especially important for cleaning the bottom of closed reaction vessels. Teaching requirements necessitate a wider range of applicable scenarios and functionalities for experimental teaching aids. Summary of the Invention

[0003] The purpose of this invention is to provide a chemical reactor experimental teaching tool that enables the bottom cleaning and stirring operations of the reactor to be carried out by the same device, allowing it to be applied in various teaching scenarios and improving teaching effectiveness.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] A chemical reactor experimental teaching aid, characterized in that it includes:

[0006] Support base (1);

[0007] The reactor (2) is located in the middle position above the support base (1);

[0008] Fixing device (11) is set on both sides of the support base (1) for fixing reactor (2);

[0009] A driving device (3) is used to drive the integrated stirring and cleaning device (5); the integrated stirring and cleaning device (5) includes a rotating shaft (51) connected to the driving shaft of the driving device (3), a cleaning device (54) is connected to the bottom of the rotating shaft (51), and a support sleeve (53) is provided on the outside of the rotating shaft (51). The support sleeve (53) has an inverted T-shaped structure and a groove structure at the bottom of the support sleeve (53) to cover and wrap the cleaning device (54); a buckle (14) is provided at the top of the support sleeve (53) to fill the gap between the driving device (3) and the top of the support sleeve (53).

[0010] Preferably, the top cover of the reactor (2) is fixedly connected to the reactor body by a fixing device (11); the top cover of the reactor (2) is provided with a material inlet (12) and a pressure relief valve (13).

[0011] Preferably, the fixing device (11) includes screws (101) fixed on both sides of the support base (1), and fixing nuts (103) fixed on the outside of the top cover plate of the reactor (2). Adjusting nuts (102) are installed opposite to the bottom of the fixing nuts (103). The adjusting nuts (102) and the fixing nuts (103) pass through the screws (101) to tightly connect the top cover plate with the reactor body.

[0012] Preferably, the top cover of the reactor (2) has a groove in the middle, which can fix the drive device (3) in the middle position of the top cover (21), and the drive shaft of the drive device (3) rotates synchronously with the rotating shaft (51) of the integrated stirring and cleaning device (5).

[0013] Preferably, the buckle (14) is a detachable ring structure with an opening on one side, and the buckle (14) is threadedly connected to the support sleeve (53). Preferably, the support sleeve 53 is provided with a stirring auxiliary device 52.

[0014] Preferably, the support sleeve (53) has a threaded interface on the inner side of its top, which can be fixedly connected to the housing of the drive device (3) after the buckle (14) is removed.

[0015] Preferably, the cleaning device (54) includes a support plate (541), a telescopic rod (543), and a brush plate (542); one side of the telescopic rod (543) is fixed to the support plate (541), and the other side of the telescopic rod (543) is connected to the brush plate (542); an elastic element (544) is wound around the outside of the telescopic rod.

[0016] Preferably, a level gauge (6) is provided on one side of the reactor (2), and the level gauge (6) is filled with a color temperature change display strip (61).

[0017] Preferably, the bottom of the reactor (2) is provided with a discharge structure (4) in parallel, and a filter device (43) is provided on the left side of the discharge port (42) of the discharge structure (4), and a gate (41) is embedded in the middle of the filter device (43).

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] 1. This invention enables the application of experimental teaching aids in different teaching scenarios by setting up an integrated stirring and cleaning device. When stirring is required, the buckle can fill the gap between the support sleeve and the drive device, so that the T-shaped support sleeve wraps the cleaning device to achieve the stirring effect. When the reactor needs to be cleaned, the buckle can be removed to directly connect the support sleeve to the outer shell of the drive device, and the cleaning device can be used to achieve efficient cleaning of the bottom of the reactor.

[0020] 2. By adjusting the positional relationship between the fixing nut and the adjusting nut on the screw, the present invention can fix the reactor on the support base, avoid the overturning of the reactor under high-speed driving conditions, and ensure the stability of the driving stirring and cleaning process.

[0021] 3. By setting a telescopic rod and a brush plate on the support plate of the cleaning device and reducing the hard friction between the brush and the bottom of the reactor through elastic elements, the present invention can not only improve the cleaning effect, but also avoid damage to the bottom of the cleaning device due to the high speed of the drive device.

[0022] 4. This invention incorporates a color temperature change bar in the level gauge. The color temperature change bar changes color as the temperature of the reaction system changes, allowing students to intuitively understand the heating process and the heat exchange process of the reaction. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the chemical reactor experimental teaching aid of the present invention;

[0024] Figure 2 This is a schematic diagram of the cleaning device for the chemical reactor experimental teaching aids of the present invention;

[0025] Figure 3 This is a schematic diagram of the snap fastener for the chemical reactor experimental teaching aid of the present invention;

[0026] Figure 4 This is a partial schematic diagram of the discharge structure of the chemical reactor experimental teaching aid of the present invention.

[0027] In the diagram: 1-Support base, 11-Fixing device, 12-Inlet, 13-Pressure relief valve, 14-Snap fastener, 2-Reactor, 3-Drive device, 4-Discharge structure, 41-Gate, 42-Discharge port, 43-Filter device, 5-Integrated stirring and cleaning device, 51-Drive shaft, 52-Stirring auxiliary device, 53-Support sleeve, 54-Cleaning device, 541-Support plate, 542-Brush plate, 543-Telescopic rod, 544-Elastic element, 6-Level gauge, 61-Color temperature change indicator strip. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Please see Figures 1 to 4 This invention provides a chemical reactor experimental teaching aid, including a support base 1, a reactor 2, a driving device 3, and a stirring and cleaning integrated device 5; wherein, the reactor 2 is positioned above the support base 1 at the middle position; fixing devices 11 are located on both sides of the support base 1 for fixing the reactor 2; the fixing devices 11 and the support base 1 together achieve the fixing effect of the reactor 2, ensuring the stability of the stirring and cleaning process.

[0030] In this invention, the top cover plate of reactor 2 is fixedly connected to the reactor via a fixing device 11. The fixing device 11 includes several screws 101 fixed on both sides of the support base 1 and several fixing nuts 103 fixed on the outside of the top cover plate of reactor 2. Adjusting nuts 102 are installed opposite to the bottom of the fixing nuts 103. The holes of the adjusting nuts 102 and the fixing nuts 103 pass through the screws 101 to tightly connect the top cover plate to the reactor body. A sealing gasket is provided on the inner side of the top cover plate of reactor 2 to ensure the airtightness of the reactor.

[0031] In this invention, a groove is provided in the middle of the top cover plate of the reactor 2, which can fix the drive device 3 in the middle position of the top cover plate; in this invention, the drive device 3 includes a shell, a switch, a drive motor and a drive shaft. The switch is located on the upper part of the drive device and is connected to the power supply. The drive shaft and the rotating shaft 51 of the integrated stirring and cleaning device 5 can rotate synchronously under the drive of the drive motor, thereby driving the integrated stirring and cleaning device 5 to perform stirring and cleaning operations.

[0032] In this invention, the integrated stirring and cleaning device 5 includes a rotating shaft 51 connected to the drive shaft of the drive device 3. A cleaning device 54 is connected to the bottom of the rotating shaft 51. A support sleeve 53 is provided outside the rotating shaft 51. The support sleeve 53 has an inverted T-shaped structure and a grooved bottom structure, capable of covering and enclosing the cleaning device 54. Preferred coverage in this invention is full coverage or coverage excluding the bottom surface. In this invention, a threaded interface is provided on the inner top side of the support sleeve 53, allowing connection to the outer shell of the drive device 3. In this invention, a buckle 14 is provided on the top of the support sleeve 53 to fill the gap between the drive device 3 and the top of the support sleeve 53. In this invention, the buckle 14 is a detachable ring structure with an opening on one side. The buckle 14 has the same diameter as the top of the support sleeve 53, and a threaded interface is provided on the inner bottom side of the buckle 14, allowing threaded connection with the support sleeve 53, thereby achieving synchronous operation of the drive shaft, rotating shaft, and buckle.

[0033] In this invention, the top cover plate of reactor 2 is provided with a material port 12 and a pressure relief valve 13. The material port 12 can be used to introduce liquid and gas materials, and can also be used as a reaction outlet to discharge reaction gas. The pressure relief valve 13 can prevent pressure overload of the high-pressure reaction system and will trip to release pressure when the pressure is too high. This invention can use a conventionally selected pressure relief valve structure.

[0034] In this invention, the cleaning device 54 includes a support plate 541, a telescopic rod 543, and a brush plate 542; one side of the telescopic rod 543 is fixed to the support plate 541, and the other side of the telescopic rod 543 is connected to the brush plate 542; the support plate 541 is fixedly connected to the drive shaft 51 by bolts; an elastic element 544, preferably a spring, is wound around the outside of the telescopic rod; this invention applies a certain force to the brush plate through the elastic action of the elastic element, thereby improving the cleaning effect of the brush plate; at the same time, the elastic element can also reduce the hard friction between the brush plate and the bottom of the reactor, avoiding damage to the bottom of the cleaning device due to the high speed of the drive device.

[0035] In this invention, the supporting sleeve 53 is also provided with a stirring auxiliary device 52, which is fixedly connected to the supporting sleeve 53. Several fixed rods parallel to the supporting sleeve 53 are provided at a position away from the supporting sleeve 53. The stirring auxiliary device 52 can be disassembled. The stirring auxiliary device is mainly used for mixing raw materials before reaction, which can improve the mixing uniformity of raw materials, especially for reaction raw materials with high viscosity. At the same time, the stirring auxiliary device can also be used in the chemical reaction process to improve the reaction rate of the chemical reaction.

[0036] In this invention, a level gauge 6 is provided on one side of the reactor 2. The level gauge 6 is in communication with the interior of the reactor 2 and can observe the color and volume changes of the materials in the reaction system. The level gauge 6 is filled with a color temperature change display strip 61. The color temperature change display strip 61 can produce different gradient color changes with the change of reaction temperature. In teaching, students can intuitively feel the temperature change of the chemical reaction and distinguish whether it is an exothermic or endothermic reaction.

[0037] In this invention, a discharge structure 4 is provided parallel to the bottom of the reactor 2. A filter device 43 is provided on the left side of the discharge port 42 of the discharge structure 4. The filter device 43 is equipped with several filter screens inside, which can effectively filter solid impurities and viscous liquids. The filter device 43 can be pulled out from the top of the discharge port. The gate 41 is embedded in the middle part of the filter device 43 and can be opened freely up and down. It mainly serves to block the liquid from flowing out. If it is necessary to observe the liquid during the reaction, the gate 41 can be opened to ensure the clarity of the observed liquid product. During the cleaning process after the reaction, the filter device 43 and the embedded gate 41 need to be opened simultaneously to remove the mixed liquid at the bottom of the reactor.

[0038] The chemical reactor experimental teaching aid provided by this invention has a wide range of applications. It can be used for mixing raw materials before the reaction, accelerating stirring during the reaction, and cleaning the reactor after the reaction.

[0039] In one embodiment of the present invention, the working principle is as follows: Open the top cover of reactor 2, add the reaction raw materials into reactor 2, place the buckle 14 between the support sleeve 53 and the drive device 3 and connect them, either by thread or by buckle; by adjusting the positional relationship between the adjusting nut 102 and the fixing nut 103 of the fixing device 11, the reactor 2 is sealed and fixed, the bottom discharge mechanism 4 is closed, and the top inlet 12 is connected to other related devices or instruments; connect the drive device 3 to an external power source, start the switch, and the drive shaft rotates under the action of the drive motor. When the device moves, the support sleeve 53 will cover the cleaning device 54 due to the filling of the buckle 14, and reassemble into an inverted T-shaped stirring structure. The drive device 3 drives the inverted T-shaped stirring structure to rotate synchronously through the drive shaft, stirring the material in the reactor. Due to the covering of the support sleeve 53, the cleaning structure 54 will not come into contact with the reaction system. At this time, the reactor mainly plays the stirring function, which can accelerate the reaction rate of the reaction system. The reaction phenomenon and temperature change can be quickly observed through the level gauge 6 and the color temperature change display bar 61, achieving better teaching effect.

[0040] After the reaction observation is completed, turn off the switch of drive device 3, open the pressure relief valve 13, and wait for the reaction system in reactor 2 to stabilize. Then, by adjusting the positional relationship between the adjusting nut 102 and the fixing nut 103 of the fixing device 11, open reactor 2, remove the clip 14, and connect the support sleeve 53 directly to the housing of drive device 3. Either threaded or clip-on connection can be used. Inject cleaning fluid into reactor 2 to the appropriate scale, cover with the top cover, and seal and fix it using the fixing device 11. Turn on the switch of drive device 3. At this point, due to the removal of clip 14, the support sleeve 53 is directly connected to the housing of drive device 3. The outer casing is directly connected and no longer rotates. The bottom cleaning structure 54 is no longer covered and can fully contact the bottom of reactor 2. The drive device 3 drives the rotating shaft 51 and the support plate 541 to rotate synchronously. The brush plate 542 also rotates synchronously with the support plate 541 via the telescopic rod 543. The brush plate 542 performs high-speed cleaning on the bottom of the reactor. The presence of the elastic element 544 provides force to the brush plate, enhancing its cleaning power. At the same time, the presence of the elastic element 544 also avoids excessive hard friction with the bottom of the reactor, reducing damage to the cleaning device 54 and improving its service life. After cleaning, the filter device 43 and the gate 41 are opened simultaneously to allow the cleaned mixed liquid to flow out, completing the cleaning of reactor 2.

[0041] In another embodiment of the present invention, such as in the early stage of the reaction, the stirring auxiliary device 52 can be connected to the support sleeve 53, and the fixed rod at the far end of the stirring auxiliary device 52 can be used for longitudinal stirring, combined with the transverse stirring of the bottom cleaning device to fully mix, so as to facilitate the subsequent reaction; after stirring and mixing, the stirring auxiliary device 52 can be removed or left in the reactor 2 for stirring during the reaction process, depending on the reaction conditions.

[0042] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A chemical reactor experimental teaching aid, characterized in that: The utility model relates to a reactor cleaning and stirring integrated device and a reactor with the same. The reactor cleaning and stirring integrated device comprises a rotating shaft (51) connected with a driving shaft of the driving device (3), a cleaning device (54) connected with the bottom of the rotating shaft (51), and a support sleeve (53) provided on the outside of the rotating shaft (51). The support sleeve (53) is in the shape of an inverted T and has a groove structure at the bottom, so that the cleaning device (54) can be covered and wrapped. A buckle (14) is arranged at the top of the support sleeve (53) to fill the gap between the driving device (3) and the top of the support sleeve (53). An auxiliary stirring device (52) is arranged on the support sleeve (53). A threaded interface is formed in the inside of the top of the support sleeve (53), so that the support sleeve (53) can be fixedly connected with the shell of the driving device (3) after the buckle (14) is removed. The cleaning device (54) comprises a support plate (541), an extension rod (543), and a brush plate (542). The extension rod (543) is fixed on one side of the support plate (541) and connected with the brush plate (542) on the other side. The outside of the extension rod is wound with an elastic element (544).

2. The chemical reactor experiment teaching aid of claim 1, wherein The top cover plate of the reactor (2) is fixedly connected with the reactor body through the fixing device (11).

3. The chemical reactor experiment teaching aid of claim 2, wherein the reactor is a stirred tank reactor. A material port (12) and a pressure relief valve (13) are formed in the top cover plate of the reactor (2).

4. The chemical reactor experiment teaching aid of claim 2, wherein the reactor is a continuous stirred tank reactor. The fixing device (11) comprises a screw rod (101) fixed on both sides of the support base (1), a fixing nut (103) fixed on the outside of the top cover plate of the reactor (2), and an adjusting nut (102) fixed on the bottom of the fixing nut (103).

5. The chemical reactor experiment teaching aid of claim 1, wherein the reactor is a continuous stirred tank reactor. The adjusting nut (102) and the fixing nut (103) penetrate the screw rod (101) to tightly connect the top cover plate with the reactor body.

6. The chemical reactor experiment teaching aid of claim 1, wherein the reactor is a continuous stirred tank reactor. A groove is formed in the middle of the top cover plate of the reactor (2) to fix the driving device (3) in the middle of the top cover plate (21).

7. The chemical reactor experiment teaching aid of claim 1, wherein the reactor is a continuous stirred tank reactor. The driving shaft of the driving device (3) rotates synchronously with the rotating shaft (51) of the stirring and cleaning integrated device (5). The buckle (14) is a detachable ring structure with an open side. The reactor (2) is provided with a liquid level meter (6) on one side. A discharge structure (4) is formed in parallel on the bottom of the reactor (2). A filter device (43) is arranged on the left side of the discharge port (42) of the discharge structure (4), and a gate (41) is embedded in the middle of the filter device (43).

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