Comprehensive practical training device for chemical teaching

Abstract

The invention discloses a comprehensive practical training device for chemical teaching, which belongs to the technical field of chemical teaching and practical training equipment and comprises a supporting box, a rotatable practical training platform mechanism is arranged above the supporting box, a fixed base is arranged in the center of the practical training platform mechanism, and a plurality of process modules capable of moving in the radial direction are arranged on the top surface of the practical training platform mechanism. A central buffer tank is arranged in the fixed base, a plurality of fluid joints are distributed on the central fixed base, and the central buffer tank is communicated with at least part of the fluid joints through a pipeline arranged in the fixed base, so that the central buffer tank can be selectively communicated with any selected process module; therefore, materials can be transferred among different process modules. Through the integrated design of the rotating platform and the fixed base and the built-in central buffer tank and the pneumatic transfer system, closed and reliable conveying of materials between modules is achieved, multi-step practical training operation is simple, convenient and safe, the continuous production process can be completely simulated, and engineering practice teaching is strengthened.

Description

Technical Field

[0001] This invention relates to the field of chemical engineering teaching and training equipment technology, and in particular to a comprehensive chemical engineering teaching and training device. Background Technology

[0002] In higher vocational education and undergraduate engineering practice teaching, chemical unit operation training is a crucial component in cultivating students' engineering practice abilities. Traditional training methods typically have the following shortcomings: The equipment is dispersed and the operation is cumbersome: the equipment for different unit operations such as reaction, filtration, washing, and distillation is independent and dispersed. When students complete a multi-step synthesis experiment, they need to manually move materials between different devices and frequently disassemble and connect pipelines. This is not only cumbersome and time-consuming, but also prone to material leakage and spillage, posing safety hazards. At the same time, it is difficult to reflect the continuous and pipelined characteristics of modern chemical production.

[0003] Difficulty in material transfer between modules: While some existing modular training devices centrally arrange equipment, they lack efficient and closed-loop material transfer mechanisms between modules. Transferring solids or solid-liquid mixtures often requires manual pouring or the use of easily clogged and worn transfer pumps, making smooth and reliable process connections impossible. This limits the device to teaching only single-unit operations, making it difficult to conduct comprehensive training on continuous processes.

[0004] The teaching lacks demonstrative value and a sense of engineering realism: the scattered equipment layout and manual material transfer make the entire process fragmented and lack a holistic view. Students find it difficult to intuitively establish a complete "process" concept from raw materials to products, and have insufficient understanding of the integration and continuity of engineering systems.

[0005] Therefore, there is an urgent need in this field for a comprehensive training device that is highly integrated, safe and efficient, and can realistically simulate continuous chemical production processes, in order to solve the above-mentioned teaching pain points and improve the quality of practical teaching. Summary of the Invention

[0006] The purpose of this invention is to provide a comprehensive training device for chemical engineering teaching, which solves the problems of existing training devices such as scattered equipment, cumbersome operation, difficulty in transferring materials between modules, and weak teaching demonstration and engineering realism.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: This invention discloses a comprehensive chemical engineering teaching and training device, comprising a support box, a rotatable training platform mechanism disposed above the support box, a fixed base fixedly connected to the support box at the center of the training platform mechanism, a plurality of radially movable process modules disposed on the top surface of the training platform mechanism, a central buffer tank disposed inside the fixed base, and a plurality of fluid connectors distributed on the central fixed base, the central buffer tank being connected to at least some of the fluid connectors through pipelines disposed inside the fixed base, thereby enabling the central buffer tank to selectively connect to any selected process module to realize the transfer of materials between different process modules.

[0008] Furthermore, the training platform mechanism includes an annular track disposed on the top surface of the support box, a support cylinder disposed at the center of the annular track, a rotating plate disposed on the top surface of the support cylinder, a mounting plate disposed on the top surface of the rotating plate, a plurality of support wheels disposed below the rotating plate, the support wheels moving along the surface of the annular track, and two sets of driving components for driving the rotating plate to rotate and a positioning component for locking the position of the rotating plate disposed above the annular track.

[0009] Furthermore, the driving assembly includes a first driving member, the working end of which is provided with a movable seat that can move in the front-back direction, a driving wheel is provided above the movable seat, and a plurality of arc-shaped baffles are provided on the bottom surface of the rotating plate. The driving wheel contacts the arc-shaped baffles to drive the rotating plate to rotate.

[0010] Furthermore, the positioning component includes a limiting plate disposed below the rotating plate, the outer edge of the limiting plate being provided with a plurality of slots, a second driving member being disposed above the annular track, the output end of the second driving member being provided with a connecting arm, the other end of the connecting arm being provided with a limiting rod matching the slots, and a limiting seat being disposed above the annular track, the limiting seat being provided with a channel for the limiting rod to pass through.

[0011] Furthermore, the top surface of the mounting plate is provided with several linear motion modules, the process module is mounted on the linear motion modules, and the linear motion modules drive the process module to move radially.

[0012] Furthermore, the central buffer tank is configured as a transparent or partially transparent pressure-resistant container. The top of the central buffer tank is provided with an interface communicating with the gas distribution system, and the bottom is provided with a discharge port. The gas distribution system includes at least a vacuum pipeline and a pressurized gas pipeline. Vacuum or pressurized gas can be selectively introduced into the top of the central buffer tank through a switching valve to drive the intake or discharge of materials in the central buffer tank.

[0013] Furthermore, the internal piping of the fixed base includes a material transfer pipeline, a gas power pipeline, and a raw material supply pipeline; one end of the material transfer pipeline is connected to the bottom outlet of the central buffer tank, and the other end is connected to a first type of fluid connector for docking with the process module; the gas power pipeline connects the gas distribution system to the top interface of the central buffer tank; the raw material supply pipeline connects an external raw material source to a second type of fluid connector for adding materials to the process module.

[0014] Furthermore, the process module is provided with a module interface that matches the first type of fluid connector and the second type of fluid connector; when the training platform mechanism drives a certain process module to rotate to the working position where it docks with the fixed base, the module interface on the process module can dock and connect with the corresponding fluid connector on the fixed base.

[0015] Furthermore, the bottom of the process module is provided with a height adjustment mechanism so that the module interfaces on different process modules can be matched with the height of the fluid connectors on the fixed base.

[0016] Furthermore, the number of process modules is set to four, namely, a reaction vessel module, a neutralization washing and separation module, a drying and filtration module, and a distillation and purification module.

[0017] Compared with the prior art, the beneficial technical effects of the present invention are as follows: This invention integrates multiple independent unit operation modules into a compact whole through the integrated design of the rotating training platform mechanism and the fixed base. All steps can be completed simply by rotating the training platform mechanism and operating the centralized valve on the fixed base, completely eliminating the need for equipment transportation and temporary connection work. This makes operation extremely simple and fast, greatly improving teaching efficiency, while significantly reducing the risk of leakage caused by frequent connections and enhancing safety.

[0018] This invention embeds a central buffer tank and a pneumatic transfer system within a fixed base. Utilizing the principles of vacuum suction and pressure conveying, it achieves lossless and reliable transfer of materials in a closed pipeline, avoiding the blockage and wear of mechanical pumps. Furthermore, the transfer process is visualized and controllable, solving the most critical logistics connection problem in continuous process training, and enabling multi-step experiments to operate as smoothly as a real production line.

[0019] This invention, through rotating the switching module and observing the state of materials in the central buffer tank, enables a better experience of real chemical operations, enhances the continuity, integrity, and engineering realism of teaching, and effectively cultivates students' systems engineering thinking and innovation capabilities. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings.

[0021] Figure 1 This is a front view of the chemical engineering teaching integrated training device of the present invention; Figure 2 This is a top view of the chemical engineering teaching integrated training device of the present invention; Figure 3 This is a schematic diagram of the structure of the training platform of the present invention; Figure 4 This is a schematic diagram of the structure of the training platform mechanism of the present invention; Figure 5 This is a schematic diagram of the arc-shaped baffle of the training platform mechanism of the present invention; Figure 6 This is a schematic diagram of the linear motion module of the present invention; Figure 7 This is a schematic diagram of the internal structure of the linear motion module of the present invention; Figure 8 This is a front view of the reactor module of the present invention; Figure 9 This is a front view of the washing and dispensing module in this invention; Figure 10 This is a side view of the neutralizing washing and dispensing module of the present invention; Figure 11 This is a front view of the drying and filtering module of the present invention; Figure 12 This is a front view of the distillation and purification module of the present invention; Figure 13 This is a top view of the distillation and purification module of the present invention; Figure 14 This is a schematic diagram of the structure of the fixed base of the present invention.

[0022] Explanation of reference numerals in the attached drawings: 1. Support box; 2. Circular track; 3. Support cylinder; 4. Rotating plate; 5. Support wheel; 6. First driving component; 7. Moving seat; 8. Drive wheel; 9. Arc-shaped baffle; 10. Second driving component; 11. Connecting arm; 12. Limiting seat; 13. Limiting rod; 14. Limiting plate; 15. Mounting plate; 16. Linear motion module; 17. Reactor module; 18. Neutralization, washing and separation module; 19. Drying and filtration module; 20. Distillation and purification module; 21. Fixed base; 1401. Slot; 1601. Base; 1602. Motor; 1603. Lead screw; 1604. Slide; 1605. Slide rail; 1606. Cover plate; 170 1. Support frame; 1702. Reactor body; 1703. First feed inlet; 1704. First discharge outlet; 1705. First jacket; 1706. Heat medium inlet; 1707. Heat medium outlet; 1801. Separator; 1802. Second feed inlet; 1803. Feed inlet; 1804. Light phase outlet; 1805. Heavy phase outlet; 1901. Drying tank; 1902. Filter tank; 1903. Third feed inlet; 1904. Second discharge outlet; 2001. Distillation tank; 2002. Fourth feed inlet; 2003. Condenser; 2101. Fixed base body; 2102. Inlet / outlet connector; 2103. Heat medium connector; 2104. Central buffer tank. Detailed Implementation

[0023] like Figure 1-14 As shown, a comprehensive chemical engineering teaching training device includes a support box 1. A rotatable training platform mechanism is installed on top of the support box 1. A fixed base 21, which is fixedly connected to the support box 1, is installed at the center of the training platform mechanism. Several radially movable process modules are arranged on the top surface of the training platform mechanism. A central buffer tank 2104 is installed inside the fixed base 21. Multiple fluid connectors are distributed on the central fixed base. The central buffer tank 2104 is connected to at least some of the fluid connectors through pipelines arranged inside the fixed base 21, so that the central buffer tank 2104 can selectively connect to any selected process module to realize the transfer of materials between different process modules.

[0024] like Figure 3-5 As shown, the training platform mechanism includes an annular track 2 connected to the top surface of the support box 1. A support cylinder 3 is connected to the center of the annular track 2. A rotating plate 4 is rotatably mounted on the top surface of the support cylinder 3. An mounting plate 15 is connected to the top surface of the rotating plate 4. Four support wheels 5 are mounted below the rotating plate 4 via wheel frames. The support wheels 5 move along the surface of the annular track 2. Two sets of drive components for driving the rotating plate 4 to rotate and a positioning component for locking the position of the rotating plate 4 are installed above the annular track 2.

[0025] The driving assembly includes a first driving component 6, the working end of which is connected to a movable seat 7 that can move in the front-back direction. One side of the first driving component 6 has a track groove, and slide rails are installed on the inner walls of both sides of the track groove. A slider matching the slide rails is installed on the movable seat 7. A driving wheel 8 is installed above the movable seat 7. Four arc-shaped baffles 9 are connected to the bottom surface of the rotating plate 4. The driving wheel 8 contacts the arc-shaped baffles 9 to drive the rotating plate 4 to rotate. The first driving component 6 can be an existing component such as a hydraulic cylinder or a pneumatic cylinder. In use, the working rod of the first driving component 6 extends to drive the movable seat 7 to move, and the driving wheel 8 pushes the rotating plate 4 to rotate during its linear movement. One set of driving components works to rotate the rotating plate 4 by 90 degrees, then another set of driving components works to rotate the rotating plate 4 by another 90 degrees. The two sets of driving components work alternately to rotate the rotating plate 4, adjusting the position of the process module.

[0026] The positioning assembly includes a limiting plate 14 installed below the rotating plate 4. Four slots 1401 are formed on the outer edge of the limiting plate 14. A second driving component 10 is installed above the annular track 2. A connecting arm 11 is installed at the output end of the second driving component 10, and a limiting rod 13 matching the slots 1401 is installed at the other end of the connecting arm 11. A limiting seat 12 is also installed above the annular track 2, and the limiting seat 12 has a channel for the limiting rod 13 to pass through. The second driving component 10 can be an existing component such as a hydraulic cylinder or a pneumatic cylinder. In use, the working rod of the second driving component 10 extends, driving the connecting arm 11 to move and push the limiting rod 13 into the slots 1401, thus stopping the rotating plate 4 from rotating.

[0027] Four linear motion modules 16 are mounted on the top surface of the mounting plate 15. These four linear motion modules 16 are evenly distributed circumferentially. The process module is mounted on the linear motion modules 16, and the linear motion modules 16 drive the process module to move radially. Specifically, as shown... Figure 6-7 As shown, the linear motion module 16 includes a base 1601, a motor 1602 installed inside the base 1601, a lead screw 1603 installed on the output shaft of the motor 1602, a slide block 1604 threadedly connected to the lead screw 1603, a process module installed on the top surface of the slide block 1604, a slide rail 1605 installed inside the base 1601, a slider matching the slide rail 1605 installed on the slide block 1604, a cover plate 1606 installed above the base 1601, and the slide block 1604 extending from the gap between the cover plate 1606 and the base 1601 and connecting to the process module.

[0028] The central buffer tank 2104 is a transparent or partially transparent pressure-resistant container. The top of the central buffer tank 2104 is provided with an interface communicating with the gas distribution system, and the bottom is provided with a discharge port. The gas distribution system includes at least a vacuum pipeline and a pressurized gas pipeline. Vacuum or pressurized gas can be selectively introduced into the top of the central buffer tank 2104 through a switching valve to drive the intake or discharge of materials in the central buffer tank 2104.

[0029] The internal piping of the fixed base 21 includes a material transfer pipeline, a gas power pipeline, and a raw material supply pipeline. One end of the material transfer pipeline is connected to the bottom outlet of the central buffer tank 2104, and the other end is connected to a first-type fluid connector for docking with the process module. The gas power pipeline connects the gas distribution system to the top interface of the central buffer tank 2104. The raw material supply pipeline connects an external raw material source to a second-type fluid connector for adding materials to the process module. The raw material supply pipeline can extend from the fixed base 21 through the support cylinder 3 into the support box 1 (the pipeline passes around the central buffer tank 2104 and will not affect the normal use of the central buffer tank 2104). The raw material container is placed inside the support box 1. With the protection of the support box 1, the raw material container can be prevented from being overturned during student operation, and the entire device is also simpler. The support box 1 is hinged with a door for easy replacement and retrieval of the raw material container. The bottom of the support box 1 can also be equipped with casters with brakes to facilitate the movement of the entire device, while also fixing the position of the device during practical training.

[0030] The process module is equipped with a module interface that matches the first type of fluid connector and the second type of fluid connector. When the training platform mechanism rotates a certain process module to a working position where it is docked with the fixed base 21, the module interface on the process module can dock and connect with the corresponding fluid connector on the fixed base 21. The module interface and the fluid connector can use common quick connectors to achieve quick docking and simple operation.

[0031] The bottom of each process module is equipped with a height adjustment mechanism, which allows the module interfaces on different process modules to match the height of the fluid connectors on the fixed base 21. The height adjustment mechanism can be a scissor lift.

[0032] A method for conducting practical training using this training device includes the following steps: S1: Rotate the training platform mechanism to move the first process module to dock with the fixed base 21; S2: Supply raw materials or energy to the first process module through the fluid connector on the fixed base 21 to enable it to complete the first unit operation; S3: Operate the central buffer tank 2104 and related pipelines to transfer the material after the first unit operation in the first process module to the central buffer tank 2104; S4: Rotate the training platform mechanism to move the second process module to dock with the fixed base 21; S5: Operate the central buffer tank 2104 to transport the material inside to the second process module and perform the second unit operation.

[0033] Follow the steps described above to perform continuous training operations for multiple units.

[0034] The process modules are set to four: a reaction vessel module 17, a neutralization washing and separation module 18, a drying and filtration module 19, and a distillation and purification module 20. Each process module is scaled down to the actual product, making it easier for students to understand the real situation and enhancing their experience. While ensuring safety, the process modules can also be made of transparent material, allowing students to observe the reaction process more directly.

[0035] like Figure 8 As shown, the reactor module 17 includes a support 1701, on which a reactor body 1702 is mounted. The reactor body 1702 is connected to a first inlet 1703 and a first outlet 1704. A stirrer is installed inside the reactor body 1702. A first jacket 1705 is installed on the outside of the reactor body 1702. A heat medium inlet 1706 and a heat medium outlet 1707 are connected to the first jacket 1705. The reactor body 1702 is also equipped with commonly used accessories for existing reactors, such as temperature / pressure sensors.

[0036] like Figure 9-10 As shown, the neutralization washing and separation module 18 includes a separation tank 1801. The top of the separation tank 1801 is connected to a second inlet 1802 and a feeding port 1803. The separation tank 1801 is also connected to a light phase outlet 1804 and a heavy phase outlet 1805. Valves are installed on both the light phase outlet 1804 and the heavy phase outlet 1805. The bottom of the separation tank 1801 has a waste discharge port. An agitator is installed on the inner wall of the separation tank 1801.

[0037] like Figure 11 As shown, the drying and filtering module 19 includes a drying tank 1901 and a filtering tank 1902. A stirrer is installed inside the drying tank 1901. A third feed inlet 1903 is connected to the drying tank 1901. The discharge outlet of the drying tank 1901 communicates with the feed inlet of the filtering tank 1902. A second discharge outlet 1904 is connected to the filtering tank 1902. The top cover of the filtering tank 1902 is removable, allowing the internal filter basket to be taken out for cleaning or replacement.

[0038] like Figure 12-13 As shown, the distillation and purification module 20 includes a distillation tank 2001 and a condenser 2003. A fourth feed inlet 2002 is connected to the distillation tank 2001. A second jacket is installed on the outside of the distillation tank 2001, and a heat medium inlet and outlet are connected to the second jacket.

[0039] like Figure 14 As shown, the fixed base 21 includes a hollow fixed base body 2101, and the fixed base body 2101 is connected to an inlet / outlet connector 2102 and a heat medium connector 2103.

[0040] Taking the preparation of ethyl acetate as an example, the specific working process of this training device is introduced: S1, Reaction Stage: Rotate the training platform mechanism to align the reactor module 17 with the fixed base 21.

[0041] The first feed inlet 1703 connects to the feed inlet / outlet connector 2102 on the fixed base 21, and adds the reaction raw materials ethanol, acetic acid and concentrated sulfuric acid catalyst into the reactor body 1702.

[0042] The heat medium inlet 1706 and heat medium outlet 1707 are respectively connected to the two heat medium connectors 2103 on the fixed base 21 for heating reaction.

[0043] Once the reaction is complete, stop heating.

[0044] S2, Transfer to neutralization and washing module: Connect the first discharge port 1704 to the inlet / outlet connector 2102, and switch the top of the central buffer tank 2104 to connect to the vacuum manifold. Turn on the vacuum and draw all the mixture in the reactor body 1702 into the transparent central buffer tank 2104.

[0045] Turn off the vacuum and disconnect it from the reactor body 1702.

[0046] Rotate the training platform mechanism to align the neutralization washing and separation module 18 with the fixed base 21.

[0047] Connect the second inlet 1802 on the separator 1801 to the inlet / outlet connector 2102, and switch the top of the central buffer tank 2104 to connect to the main compressed air pipe. Turn on the low-pressure compressed air to smoothly press the material in the central buffer tank 2104 into the neutralization, washing and separator module 18.

[0048] S3, Washing and Separation: Add the solution to separatory tank 1801, stir to neutralize, and then let it stand to separate.

[0049] The lower aqueous phase is discharged to the bottom waste liquid collector through the valve at the heavy phase outlet 1805 of the separator 1801.

[0050] Add saturated saline solution to separatory tank 1801, add washing solution, separate the liquid again and discard the aqueous phase.

[0051] At this point, the organic phase remains in the separatory tank 1801.

[0052] S4. Transfer to the drying and filtration module: Repeat the transfer operation of S2: use vacuum to draw the organic phase in the neutralization washing and separation module 18 to the central buffer tank 2104, and then use compressed air to pressurize it into the drying and filtration module 19.

[0053] Anhydrous sodium sulfate was added through the solid feed port of drying tank 1901 and stirred to dry.

[0054] Then, it enters the filter tank 1902 for filtration, so that the dried organic phase enters the receiving chamber at the bottom of the filter tank 1902, and the solid desiccant is retained.

[0055] S5. Transfer to the distillation module for purification: Repeat the transfer operation of S2: use vacuum to transfer the organic phase in the receiving chamber of the drying and filtering module 19 to the distillation tank 2001 of the distillation and purification module 20.

[0056] The heat medium inlet of the distillation tank 2001 is connected to the heat medium connector 2103 on the fixed base 21 for heating and distillation.

[0057] By connecting cooling water and collecting the fraction with a specific boiling range, pure ethyl acetate is obtained.

[0058] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A comprehensive practical training device for chemical engineering teaching, characterized in that: The system includes a support box (1), a rotatable training platform mechanism is provided above the support box (1), a fixed base (21) is provided at the center of the training platform mechanism and is fixedly connected to the support box (1), a number of radially movable process modules are provided on the top surface of the training platform mechanism, a central buffer tank (2104) is provided inside the fixed base (21), a number of fluid connectors are distributed on the central fixed base, and the central buffer tank (2104) is connected to at least some of the fluid connectors through pipelines provided inside the fixed base (21), so that the central buffer tank (2104) can selectively connect to any selected process module to realize the transfer of materials between different process modules.

2. The chemical engineering teaching integrated training device according to claim 1, characterized in that: The training platform mechanism includes an annular track (2) set on the top surface of the support box (1), a support cylinder (3) set at the center of the annular track (2), a rotating plate (4) set on the top surface of the support cylinder (3), an mounting plate (15) set on the top surface of the rotating plate (4), a number of support wheels (5) set below the rotating plate (4), the support wheels (5) move along the surface of the annular track (2), and two sets of driving components for driving the rotating plate (4) to rotate and a positioning component for locking the position of the rotating plate (4) are set above the annular track (2).

3. The chemical engineering teaching integrated training device according to claim 2, characterized in that: The driving assembly includes a first driving member (6), the working end of the first driving member (6) is provided with a movable seat (7) that can move in the front and back direction, a driving wheel (8) is provided above the movable seat (7), and a plurality of arc-shaped baffles (9) are provided on the bottom surface of the rotating plate (4). The driving wheel (8) contacts the arc-shaped baffles (9) to drive the rotating plate (4) to rotate.

4. The integrated chemical engineering teaching and training device according to claim 2, characterized in that: The positioning component includes a limiting disk (14) disposed below the rotating plate (4), and a plurality of slots (1401) are provided on the outer edge of the limiting disk (14). A second driving member (10) is disposed above the annular track (2). A connecting arm (11) is provided at the output end of the second driving member (10). A limiting rod (13) matching the slots (1401) is provided at the other end of the connecting arm (11). A limiting seat (12) is also disposed above the annular track (2). A channel for the limiting rod (13) to pass through is provided on the limiting seat (12).

5. The chemical engineering teaching integrated training device according to claim 2, characterized in that: The top surface of the mounting plate (15) is provided with a plurality of linear motion modules (16), the process module is disposed on the linear motion modules (16), and the linear motion modules (16) drive the process module to move radially.

6. The integrated chemical engineering teaching and training device according to claim 1, characterized in that: The central buffer tank (2104) is configured as a transparent or partially transparent pressure-resistant container. The top of the central buffer tank (2104) is provided with an interface communicating with the gas distribution system, and the bottom is provided with a discharge port. The gas distribution system includes at least a vacuum pipeline and a pressurized gas pipeline. Vacuum or pressurized gas can be selectively introduced into the top of the central buffer tank (2104) through a switching valve to drive the intake or discharge of materials in the central buffer tank (2104).

7. The integrated chemical engineering teaching and training device according to claim 6, characterized in that: The pipelines inside the fixed base (21) include a material transfer pipeline, a gas power pipeline, and a raw material supply pipeline; one end of the material transfer pipeline is connected to the bottom outlet of the central buffer tank (2104), and the other end is connected to a first type of fluid connector for docking with the process module; the gas power pipeline connects the gas distribution system to the top interface of the central buffer tank (2104); the raw material supply pipeline connects an external raw material source to a second type of fluid connector for adding materials to the process module.

8. The chemical engineering teaching integrated training device according to claim 7, characterized in that: The process module is provided with a module interface that matches the first type of fluid connector and the second type of fluid connector; when the training platform mechanism drives a certain process module to rotate to the working position that is connected to the fixed base (21), the module interface on the process module can be connected and communicated with the corresponding fluid connector on the fixed base (21).

9. The chemical engineering teaching integrated training device according to claim 8, characterized in that: The bottom of the process module is provided with a height adjustment mechanism so that the module interface on different process modules can be matched with the height of the fluid connector on the fixed base (21).

10. The integrated chemical engineering teaching and training device according to claim 1, characterized in that: The number of process modules is set to four, namely, the reactor module (17), the neutralization washing and separation module (18), the drying and filtration module (19), and the distillation and purification module (20).

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