Interactive water treatment process simulation teaching aids

Abstract

This invention provides an interactive water treatment process simulation teaching aid, including an installation box and water treatment components. The water treatment components include a coagulation component, a sedimentation component, a filter component, and a disinfection component arranged sequentially along the circumference of the installation box on its outer side wall. The coagulation component and the sedimentation component are connected by a first connecting pipe, the sedimentation component and the filter component are connected by a second connecting pipe, and the filter component and the disinfection component are connected by a third connecting pipe. This interactive water treatment process simulation teaching aid provides a low-cost, compact teaching aid that allows for practical application of water sample treatment processes, making it highly practical.

Description

Technical Field

[0001] This utility model belongs to the field of teaching aids technology, and more specifically, it relates to an interactive water treatment process simulation teaching aid. Background Technology

[0002] Water treatment is a critical step in ensuring drinking water safety, and includes processes such as coagulation, sedimentation, filtration, and disinfection. In traditional teaching practices, the instruction of water treatment processes mainly relies on theoretical explanations, two-dimensional diagrams, or video demonstrations, making it difficult for learners to intuitively understand these processes.

[0003] In recent years, some educational institutions have attempted to conduct practical teaching using laboratory-level small-scale water treatment devices, but such devices generally suffer from problems such as large size and high cost, resulting in low practicality. Utility Model Content

[0004] This utility model provides an interactive water treatment process simulation teaching aid, which enables the practice of water sample treatment through a low-cost and small-sized teaching aid, and has high practicality.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: an interactive water treatment process simulation teaching aid is provided, including an installation box and water treatment components. The water treatment components include a coagulation component, a sedimentation component, a filter component, and a disinfection component arranged sequentially along the circumference of the installation box on the outer side wall of the installation box. The coagulation component and the sedimentation component are connected by a first connecting pipe, the sedimentation component and the filter component are connected by a second connecting pipe, and the filter component and the disinfection component are connected by a third connecting pipe.

[0006] In one possible implementation, the coagulation component includes a coagulation box and a stirring component. The coagulation box is disposed on the outer wall of the mounting box and has an upward opening. The lower part of the coagulation box is connected to a first connecting pipe. The coagulation box is used to contain water samples. The stirring component is rotatably connected to the top of the coagulation box and extends downward into the interior of the coagulation box for stirring the water samples.

[0007] In some embodiments, the agitator includes an agitator shaft, agitator blades, and a handwheel. The agitator shaft is rotatably connected to the top of the coagulation box and extends downward into the interior of the coagulation box; the agitator blades are connected to the outer peripheral wall of the agitator shaft; and the handwheel is connected to the upper end of the agitator shaft.

[0008] In one possible implementation, the sedimentation component includes a flow guide box, a sedimentation box, and a first filter element. The flow guide box is disposed on the outer wall of the mounting box and has an upward opening. The lower part of the flow guide box is connected to a first connecting pipe. The sedimentation box is disposed on the side of the flow guide box away from the first connecting pipe, and the upper parts of the sedimentation box and the flow guide box are connected through an overflow port. The first filter element is disposed inside the sedimentation box and has a passage gap between it and the side wall of the sedimentation box near the flow guide box. The first filter element has a first filter hole through it, and a baffle plate extending upward to the top of the first filter element is provided on the side of the first filter element near the passage gap. The sedimentation box is connected to a second connecting pipe, which is located above the first filter element.

[0009] In some embodiments, the first filter pore extends through the first filter element in a vertical direction and is inclined from top to bottom.

[0010] In some embodiments, a second filter element is provided above the first filter element. The two ends of the second filter element abut against the side wall of the baffle plate and the sedimentation box away from the guide box, respectively. The second filter element is recessed. A second filter hole is provided through the upper peripheral wall of the second filter element. The second connecting pipe is located above the second filter element.

[0011] In one possible implementation, the filter element includes a first filter box and a second filter box. The first filter box is disposed on the outer wall of the mounting box and has an upward opening. The first filter box is connected to a second connecting pipe and has an activated carbon layer inside. The second filter box is disposed below the first filter box and has an upward opening. The second filter box has a quartz sand layer inside. The bottom of the first filter box has a guide pipe extending downward into the second filter box. The second filter box is connected to a third connecting pipe.

[0012] In some embodiments, the second connecting pipe is connected to the second filter box via a branch pipe.

[0013] In some embodiments, horizontally extending support strips are provided on the two opposite inner sidewalls of the first filter box, and a support plate for supporting the activated carbon layer is provided on the top of the two support strips, with water passage holes through the support plate.

[0014] In one possible implementation, the disinfection component is a disinfection box with an upward opening, and a drain pipe is connected to the bottom of the disinfection box.

[0015] The interactive water treatment process simulation teaching aid provided in this embodiment, compared with the prior art, first pours the water sample into the coagulation device, adds a soluble coagulant (such as polyaluminum chloride) to the water sample, and the coagulant combines with the suspended solids in the water to form large flocs. Open the valve on the first connecting pipe, and the water sample with flocs enters the sedimentation device through the first connecting pipe for sedimentation. Open the valve on the second connecting pipe, and the water sample enters the filter device through the second connecting pipe. The filter device removes suspended solids and impurities from the water. Finally, open the valve on the third connecting pipe, and the water sample enters the disinfection device through the third connecting pipe. Chlorine dioxide is added to the water sample in the disinfection device to kill pathogens in the water, thereby completing the purification of the water sample. It can practice the water sample treatment process with a low-cost and small-sized teaching aid, and has high practicality. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, 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 this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A schematic diagram of the structure of the interactive water treatment process simulation teaching aid provided in this embodiment of the utility model;

[0018] Figure 2 A structural schematic diagram from another perspective of the interactive water treatment process simulation teaching aid provided in this embodiment of the utility model;

[0019] Figure 3 A structural schematic diagram from another perspective of the interactive water treatment process simulation teaching aid provided in this embodiment of the utility model;

[0020] Figure 4 This is an embodiment of the present utility model. Figure 1 Schematic diagram of the structure of the medium-density concrete component;

[0021] Figure 5 This is an embodiment of the present utility model. Figure 1 Schematic diagram of the middle sedimentation component;

[0022] Figure 6 This is an embodiment of the present utility model. Figure 1 A schematic diagram of the front cross-sectional structure of the sedimentation component;

[0023] Figure 7 This is an embodiment of the present utility model. Figure 3 A frontal sectional view of the filter element.

[0024] The following are the labeling elements in the figure:

[0025] 1. Water treatment component; 10. Mounting box; 11. Boss; 20. Coagulation component; 21. Coagulation box; 22. Agitator; 221. Agitator shaft; 222. Agitator blade; 223. Handwheel; 30. Sedimentation component; 31. Flow guide box; 32. Sedimentation box; 321. Overflow port; 33. First filter element; 331. First filter hole; 332. Baffle plate; 34. Through gap; 40. Filter element; 41. First filter box; 411. Activated carbon layer; 412. Flow guide pipe ; 413, Supporting strip; 414, Support plate; 415, Water passage hole; 42, Second filter box; 421, Quartz sand layer; 422, Limiting strip; 423, Partition plate; 424, Long strip hole; 50, Disinfection component; 51, Drain pipe; 60, First connecting pipe; 61, Second connecting pipe; 62, Third connecting pipe; 63, Branch pipe; 64, First discharge pipe; 65, Second discharge pipe; 70, Second filter element; 71, Second filter hole; 80, Filter plate; 81, Vertical hole. Detailed Implementation

[0026] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0027] It should be noted that when an element is referred to as being "set on" another element, it can be directly on the other element or indirectly on the other element. It should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a number" means two or more, unless otherwise explicitly specified.

[0028] Please see Figures 1 to 7The interactive water treatment process simulation teaching aid provided by this utility model will now be described. The interactive water treatment process simulation teaching aid includes an installation box 10 and a water treatment component 1. The water treatment component 1 includes a coagulation component 20, a sedimentation component 30, a filter component 40, and a disinfection component 50 arranged sequentially along the circumference of the installation box 10 on the outer side wall of the installation box 10. The coagulation component 20 and the sedimentation component 30 are connected by a first connecting pipe 60, the sedimentation component 30 and the filter component 40 are connected by a second connecting pipe 61, and the filter component 40 and the disinfection component 50 are connected by a third connecting pipe 62.

[0029] Furthermore, the horizontal projection of the mounting box 10 is rectangular, and the mounting box 10 has a through cavity running vertically through the entire structure.

[0030] Furthermore, the coagulation component 20, sedimentation component 30, filter component 40, and disinfection component 50 are respectively set to correspond one-to-one with the four outer side walls of the mounting box 10.

[0031] Furthermore, the outer peripheral wall of the mounting box 10 is provided with a protrusion 11 that protrudes outward, and the protrusion 11 is located near the lower port of the mounting box 10.

[0032] Furthermore, valves are provided on the first connecting pipe 60, the second connecting pipe 61, and the third connecting pipe 62.

[0033] Furthermore, force application holes are provided through both opposite side walls of the mounting box 10, and the force application holes are located near the upper port of the mounting box 10 for reaching in and lifting the teaching aid.

[0034] This application provides an interactive water treatment process simulation teaching aid. In its actual use, both the installation box 10 and the water treatment component 1 are made of lightweight and low-cost materials, and some components are made of transparent materials. The teaching aid can be placed on a workbench or lectern by the support of the installation box 10. First, the water sample is poured into the coagulation component 20, and a soluble coagulant (such as polyaluminum chloride) is added to the water sample. The coagulant combines with the suspended solids in the water to form large flocs. The valve on the first connecting pipe 60 is opened, and the water sample with flocs enters the sedimentation component 30 through the first connecting pipe 60 for sedimentation. The valve on the second connecting pipe 61 is opened, and the water sample enters the filter component 40 through the second connecting pipe 61. The filter component 40 removes suspended solids and impurities from the water. Finally, the valve on the third connecting pipe 62 is opened, and the water sample enters the disinfection component 50 through the third connecting pipe 62. Chlorine dioxide is added to the water sample in the disinfection component 50 to kill pathogens in the water, thereby completing the purification of the water sample. The water treatment process can be practiced with a low-cost and small-sized teaching aid, which has high practicality.

[0035] The interactive water treatment process simulation teaching aid provided in this embodiment, compared with the prior art, first pours the water sample into the coagulation component 20, adds a soluble coagulant (such as polyaluminum chloride) to the water sample, and the coagulant combines with the suspended solids in the water to form larger flocs. Then, the valve on the first connecting pipe 60 is opened, and the water sample with flocs enters the sedimentation component 30 through the first connecting pipe 60 for sedimentation. Next, the valve on the second connecting pipe 61 is opened, and the water sample enters the filter component 40 through the second connecting pipe 61. The filter component 40 removes suspended solids and impurities from the water. Finally, the valve on the third connecting pipe 62 is opened, and the water sample enters the disinfection component 50 through the third connecting pipe 62. Chlorine dioxide is added to the water sample in the disinfection component 50 to eliminate pathogens in the water, thereby completing the purification of the water sample. This teaching aid allows for the practice of water sample treatment through low cost and small size, and has high practicality.

[0036] In one possible implementation, the aforementioned concrete component 20 adopts, as shown in... Figures 1 to 4 The structure shown is described in the following document. Figures 1 to 4 The coagulation component 20 includes a coagulation box 21 and a stirring component 22. The coagulation box 21 is disposed on the outer side wall of the mounting box 10 and has an upward opening. The lower part of the coagulation box 21 is connected to the first connecting pipe 60. The coagulation box 21 is used to contain water samples. The stirring component 22 is rotatably connected to the top of the coagulation box 21 and extends downward into the interior of the coagulation box 21 for stirring water samples.

[0037] Specifically, the open design of the coagulation box 21 allows students to directly pour in water samples and participate in the "dosing and stirring" process by manually operating the agitator 22, simulating the coagulant addition stage in actual water treatment. The agitator 22 extends to the bottom of the box, ensuring that the stirring range covers the entire water sample, avoiding dead zones, and allowing students to observe the formation process of flocs (such as alum flocs) from scratch. The open structure also facilitates teachers in explaining coagulation principles and demonstrating the effect of stirring speed on flocculation in real time.

[0038] In some embodiments, see Figures 1 to 4 The mixing component 22 includes a mixing shaft 221, a mixing blade 222, and a handwheel 223. The mixing shaft 221 is rotatably connected to the top of the coagulation box 21 and extends downward into the interior of the coagulation box 21. The mixing blade 222 is connected to the outer peripheral wall of the mixing shaft 221. The handwheel 223 is connected to the upper end of the mixing shaft 221.

[0039] Specifically, the rigid connection between the stirring shaft 221 and the blades ensures stirring stability and prevents water sample splashing caused by shaking during manual operation. The blades may be spiral or paddle-shaped, generating vortices to enhance the mixing effect. The top handwheel 223 is ergonomically designed, requiring minimal effort to operate and suitable for students of different ages. Students can intuitively understand the relationship between "stirring intensity and flocculation efficiency" by observing the rotation speed of the handwheel 223. The handwheel 223 is exposed on the top of the coagulation box 21, eliminating the need for contact with the water sample during operation, ensuring safety and facilitating observation of changes within the box. This design transforms the abstract concept of "coagulation kinetics" into a tangible physical action, deepening students' understanding of how mechanical energy promotes chemical reactions.

[0040] Furthermore, the stirring blades 222 are arranged at intervals around the stirring shaft 221.

[0041] In one possible implementation, the aforementioned deposit element 30 adopts as follows: Figure 1 , Figure 2 , Figure 5 and Figure 6 The structure shown is described in the following document. Figure 1 , Figure 2 , Figure 5 and Figure 6 The sedimentation component 30 includes a flow guide box 31, a sedimentation box 32, and a first filter element 33. The flow guide box 31 is disposed on the outer side wall of the mounting box 10 and has an upward opening. The lower part of the flow guide box 31 is connected to the first connecting pipe 60. The sedimentation box 32 is disposed on the side of the flow guide box 31 away from the first connecting pipe 60. The upper parts of the sedimentation box 32 and the flow guide box 31 are connected through an overflow port 321. The first filter element 33 is disposed inside the sedimentation box 32 and has a passage gap 34 between it and the side wall of the sedimentation box 32 near the flow guide box 31. The first filter element 33 has a first filter hole 331 through it. The side of the first filter element 33 near the passage gap 34 has a baffle plate 332 extending upward to the top of the first filter element 33. The sedimentation box 32 is connected to the second connecting pipe 61, which is located above the first filter element 33.

[0042] Specifically, the upper edge of the baffle plate 332 is located at a horizontal plane close to the bottom wall of the overflow port 321, to prevent the water sample entering through the overflow port 321 from affecting the water sample above the first filter element 33. The guide box 31 extends vertically and has a slender structure. After the water sample enters the guide box 31 from the first connecting pipe 60, the water sample impacts the inner wall of the guide box 31, causing the flocculants to be evenly dispersed in the water sample. As the water level gradually rises, it enters the sedimentation box 32 through the overflow port 321. The water level in the sedimentation box 32 gradually rises and submerges the first filter element 33. The valve on the second connecting pipe 61 is opened, and the water sample filtered by the first filter element 33 enters the filter element 40 through the second connecting pipe 61.

[0043] The flow guide box 31 and the sedimentation box 32 are connected by an overflow port 321, simulating the working principle of "overflow of clear liquid from the upper layer" in an actual sedimentation tank. The combination design of the first filter element 33 and the baffle plate 332 achieves two-stage separation: larger particles settle at the bottom of the flow guide box 31, while fine impurities are intercepted when passing through the first filter hole 331. Students can observe the phenomenon of impurities settling layer by layer as water slowly flows from the flow guide box 31 into the sedimentation box 32.

[0044] Furthermore, the bottom of the flow guide box 31 is connected to a first discharge pipe 64, which is equipped with a valve for releasing water samples and impurities from the flow guide box 31.

[0045] Furthermore, a second discharge pipe 65 is connected to the bottom of the sedimentation box 32, and a valve is provided on the second discharge pipe 65 for releasing the water sample and impurities in the sedimentation box 32.

[0046] Furthermore, the cross-sectional area of ​​the sedimentation box 32 gradually decreases from top to bottom, which is used to guide the sediment to the top of the second discharge pipe 65 for easy discharge.

[0047] In some embodiments, see Figure 6 The first filter hole 331 penetrates the first filter element 33 in the vertical direction and is inclined from top to bottom.

[0048] Specifically, a plurality of first filter holes 331 are provided on the first filter element 33. The inclined hole design of the honeycomb inclined hole type first filter element 33 significantly improves the filtration performance: its inclined channels can guide water flow to form a dynamic flushing effect, reduce the vertical deposition of suspended particles, and enhance the anti-clogging ability; the combination of honeycomb layout and inclined holes greatly increases the effective filtration area and extends the water flow path to improve the impurity interception efficiency; at the same time, the inclined holes break laminar flow, promote turbulence, avoid local siltation and achieve uniform water distribution, and ensure filtration stability.

[0049] Furthermore, the bottom of the first filter element 33 is provided with a filter plate 80, on which several vertical holes 81 are provided. The vertical holes can serve as a buffer channel before the water flows into the inclined hole, reducing the direct impact pressure at the inlet of the inclined hole and preventing particles from being forcibly forced into the inclined hole by the high-speed water flow and causing blockage. The vertical holes 81 can intercept larger particle impurities, preventing them from directly entering the main channel of the inclined hole and reducing the risk of the inclined hole being instantly blocked by large particles.

[0050] In some embodiments, see Figure 1 , Figure 5 and Figure 6 A second filter element 70 is provided above the first filter element 33. The two ends of the second filter element 70 abut against the side wall of the baffle plate 332 and the sedimentation box 32 away from the guide box 31, respectively. The second filter element 70 is recessed. A second filter hole 71 is provided through the upper peripheral wall of the second filter element 70. The second connecting pipe 61 is located above the second filter element 70.

[0051] Specifically, the concave structure of the second filter element 70 forms a "water collection tank," which slows down the water flow again after passing through the first filter element 33, extending the contact time to capture finer impurities. The second filter hole 71 is located on the upper peripheral wall, forcing the water flow to seep out from the side, allowing the upper layer of clean water to enter the second filter element 70. The baffle plate 332, in conjunction with the second filter element 70, forms a labyrinthine flow channel, increasing the probability of impurity collision and retention. Students can understand the concept of multi-stage filtration by comparing the particle sizes of impurities trapped by the first filter element 33 and the second filter element 70, and at the same time intuitively experience the synergistic effect of multi-stage treatment on water quality improvement.

[0052] In one possible implementation, the filter element 40 described above adopts, for example... Figure 1 , Figure 2 and Figure 7 The structure shown is described in the following document. Figure 1 , Figure 2 and Figure 7 The filter element 40 includes a first filter box 41 and a second filter box 42. The first filter box 41 is disposed on the outer side wall of the mounting box 10 and has an upward opening. The first filter box 41 is connected to the second connecting pipe 61 and has an activated carbon layer 411 inside. The second filter box 42 is disposed below the first filter box 41 and has an upward opening. The second filter box 42 has a quartz sand layer 421 inside. The bottom of the first filter box 41 has a guide pipe 412 extending downward into the second filter box 42. The second filter box 42 is connected to the third connecting pipe 62.

[0053] Specifically, the activated carbon layer 411 in the first filter box 41 adsorbs soluble pollutants such as pigments and odors, while the quartz sand layer 421 in the second filter box 42 traps suspended particles, simulating the synergistic effect of "multi-media filtration" in actual processes. The guide pipe 412 directs the effluent from the activated carbon layer 411 to the top of the quartz sand layer 421, conforming to the "top-down" flow design of actual filter beds. Students can understand the difference between adsorption and mechanical filtration by separately removing the activated carbon and quartz sand and observing the differences in pollutant trapping (such as activated carbon turning black and quartz sand accumulating scale). The layered design also facilitates individual replacement of filter media, reducing maintenance costs.

[0054] Furthermore, other filter layers can be replaced in the first filter box 41 and the second filter box 42 to experience the different filtration and adsorption effects of different filter layers, thus realizing diversified teaching.

[0055] In some embodiments, see Figure 2 and Figure 3 The second connecting pipe 61 is connected to the second filter box 42 through the branch pipe 63.

[0056] Specifically, branch pipe 63 connects the second connecting pipe 61 and the second filter box 42, which may be used to adjust the water flow path (e.g., bypassing the activated carbon layer 411 and directly entering the quartz sand layer 421), facilitating the design of comparative experiments by teachers. For example, when branch pipe 63 is closed, the water flows through the activated carbon and quartz sand sequentially, demonstrating the two-stage filtration effect; when branch pipe 63 is open, some water flows only through the quartz sand layer 421, allowing students to compare the differences in water quality between the two streams and understand the necessity of activated carbon adsorption. This flexibility enhances the experimental scalability of the teaching aid, making it suitable for advanced courses exploring the effects of different process combinations.

[0057] In some embodiments, see Figure 7 The first filter box 41 has horizontally extending support strips 413 on its two opposite inner side walls. The top of the two support strips 413 is provided with a support plate 414 for supporting the activated carbon layer 411. A water passage hole 415 is provided through the support plate 414.

[0058] Specifically, the combination of the support strip 413 and the tray 414 allows the activated carbon layer 411 to be suspended in the air. The evenly distributed water passage holes 415 ensure that water flows vertically through the activated carbon rather than through a lateral short circuit, thus improving adsorption efficiency. The pull-out design of the tray 414 facilitates the replacement of expired activated carbon, allowing students to personally operate the filter media replacement process and learn about filter maintenance. In addition, the transparent tray 414 allows observation of the water flow state inside the activated carbon layer 411, making the adsorption process visible.

[0059] Furthermore, the two inner walls of the second filter box 42 are provided with horizontally extending limiting strips 422, and the top of the two limiting strips 422 is provided with a partition 423 for supporting the quartz sand layer 421, and the partition 423 is provided with a long hole 424.

[0060] In one possible implementation, the aforementioned disinfection component 50 adopts, as shown in... Figure 3 The structure shown is described in the following document. Figure 3 The disinfection component 50 is a disinfection box with an upward opening, and a drain pipe 51 is connected to the bottom of the disinfection box.

[0061] Specifically, a valve is installed on drain pipe 51. The open design of the disinfection box allows for the addition of chlorine dioxide, demonstrating how pathogens in water can be eliminated through chemical means. Students can operate and observe the disinfection process. By using water quality testing tools, such as residual chlorine test strips or microbial test kits, students can directly test the changes in water samples before and after disinfection, intuitively experiencing the disinfection effect. Drain pipe 51 is positioned below the bottom of the disinfection box, utilizing gravity for drainage, requiring no additional power, and conforming to practical process principles.

[0062] In summary, the installation box 10, coagulation box 21, flow guide box 31, sedimentation box 32, first discharge pipe 64, second discharge pipe 65, first filter element 33, first filter box 41, flow guide pipe 412, branch pipe 63, second filter box 42, disinfection box, drain pipe 51, first connecting pipe 60, second connecting pipe 61, and third connecting pipe 62 are all made of transparent plastic, making it convenient for students to observe.

[0063] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An interactive water treatment process simulation teaching aid, characterized in that, include: Mounting box; as well as A water treatment assembly includes a coagulant, a sedimentation unit, a filter, and a disinfection unit arranged sequentially along the circumference of the mounting box on the outer wall of the mounting box. The coagulant and the sedimentation unit are connected by a first connecting pipe, the sedimentation unit and the filter are connected by a second connecting pipe, and the filter and the disinfection unit are connected by a third connecting pipe.

2. The interactive water treatment process simulation teaching aid as described in claim 1, characterized in that, The concrete component includes: A coagulation box, disposed on the outer wall of the mounting box and having an upward opening, the lower part of the coagulation box being connected to the first connecting pipe, the coagulation box being used to contain a water sample; and A stirring component is rotatably connected to the top of the coagulation box and extends downward into the interior of the coagulation box for stirring water samples.

3. The interactive water treatment process simulation teaching aid as described in claim 2, characterized in that, The stirring component includes: A stirring shaft is rotatably connected to the top of the coagulation box and extends downward into the interior of the coagulation box; Stirring blades, connected to the outer peripheral wall of the stirring shaft; and The handwheel is connected to the upper end of the stirring shaft.

4. The interactive water treatment process simulation teaching aid as described in claim 1, characterized in that, The precipitating element includes: A flow guide box is disposed on the outer side wall of the mounting box and has an upward opening; the lower part of the flow guide box is connected to the first connecting pipe. A sedimentation box is disposed on the side of the flow guide box away from the first connecting pipe, and the upper parts of the sedimentation box and the flow guide box are connected through an overflow port; and A first filter element is disposed inside the sedimentation box and has a passage gap between it and the side wall of the sedimentation box near the flow guide box. A first filter hole is provided through the first filter element, and a baffle plate extending upward to the top of the first filter element is provided on the side of the first filter element near the passage gap. The sedimentation box is connected to the second connecting pipe, which is located above the first filter element.

5. The interactive water treatment process simulation teaching aid as described in claim 4, characterized in that, The first filter hole penetrates the first filter element in the vertical direction and is inclined from top to bottom.

6. The interactive water treatment process simulation teaching aid as described in claim 4, characterized in that, A second filter element is provided above the first filter element. The two ends of the second filter element abut against the side wall of the baffle plate and the sedimentation box away from the guide box, respectively. The second filter element is recessed. A second filter hole is provided through the upper peripheral wall of the second filter element. The second connecting pipe is located above the second filter element.

7. The interactive water treatment process simulation teaching aid as described in claim 1, characterized in that, The filter element includes: A first filter box is disposed on the outer wall of the mounting box and has an upward opening. The first filter box is connected to the second connecting pipe, and an activated carbon layer is disposed inside the first filter box. The second filter box is located below the first filter box and has an upward opening. The second filter box contains a layer of quartz sand. The bottom of the first filter box has a guide pipe that extends downward into the second filter box. The second filter box is connected to the third connecting pipe.

8. The interactive water treatment process simulation teaching aid as described in claim 7, characterized in that, The second connecting pipe is connected to the second filter box via a branch pipe.

9. The interactive water treatment process simulation teaching aid as described in claim 7, characterized in that, The first filter box has horizontally extending support strips on its two opposite inner sidewalls. The top of the two support strips is provided with a support plate for supporting the activated carbon layer, and the support plate is provided with water passage holes.

10. The interactive water treatment process simulation teaching aid as described in claim 1, characterized in that, The disinfection component is a disinfection box with an upward opening, and a drain pipe is connected to the bottom of the disinfection box.

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