Sewage filtering experiment teaching aid

Abstract

The utility model provides a sewage filtration experiment teaching aid, which comprises a first pipe fitting, a second pipe fitting and a water collection box which are sequentially arranged from top to bottom, the first pipe fitting and the second pipe fitting have the same structure and are transparent, a first grid is arranged in the first pipe fitting, a second grid and a filter screen which are distributed up and down are arranged in the second pipe fitting, and the water collection box is arranged in the second pipe fitting. Sewage is filtered by the first grid, the second grid and the filter screen in sequence and then enters the water collecting box. The pipe fitting has the advantages that the sewage treatment process can be clearly displayed, and classified filtration of sewage in the pipe fitting can be directly observed.

Description

TECHNICAL FIELD

[0001] The utility model relates to experimental teaching aid's technical field, especially a kind of sewage filtration experimental teaching aid. BACKGROUND

[0002] Water is contacted by children in their daily life, and they are curious about water, filter dirty water, record experimental results, guide children to understand the principle of multilayer filtration needs teaching demonstration. In the process of teaching demonstration, a kind of sewage filtration experimental device will be used, and the teaching demonstration effect of most sewage filtration practical device is not enough specific and intuitive, the flow of sewage in pipe fitting cannot be directly observed, and the phenomenon that impurities are filtered and intercepted, so that good teaching effect cannot be achieved, so that students cannot understand the principle of classification filtration vividly. SUMMARY

[0003] Therefore, the utility model aims at overcoming the deficiencies in the prior art, and provides a sewage filtration experimental teaching aid.

[0004] The utility model provides a sewage filtration experimental teaching aid, including first pipe fitting 1, second pipe fitting 3, water collecting box 6 from top to bottom are sequentially arranged, the structure of first pipe fitting 1, second pipe fitting 3 is same and transparent, first pipe fitting 1 is provided with first grid 2, second pipe fitting 3 is provided with second grid 4, filter screen 5 distributed in upper and lower, sewage is sequentially filtered after first grid 2, second grid 4, filter screen 5 and enters water collecting box 6.

[0005] Further, the first pipe fitting 1 is composed of the upper stepped pipe and the lower outwardly expanding pipe, and the lower end of the inner wall of the stepped pipe is provided with a water outlet.

[0006] Further, the first pipe fitting 1 and the second pipe fitting 3 are connected through the first connecting ring 7, and the second pipe fitting 3 and the water collecting box 6 are connected through the second connecting ring 8.

[0007] Further, the second connecting ring 8 is arranged in the circular hole in the middle of the water collecting box 6, the second pipe fitting 3 is arranged on the second connecting ring 8, the first connecting ring 7 is arranged on the second pipe fitting 3, and the first pipe fitting 1 is arranged on the first connecting ring 7.

[0008] Further, the first pipe fitting 1 and the second pipe fitting 3 are made of transparent plastic.

[0009] Further, the top end of the water collecting box 6 is provided with a vent hole.

[0010] The advantages of this invention are: it clearly demonstrates the wastewater treatment process and allows direct observation of the graded filtration of wastewater within the pipe fittings; the top-to-bottom arrangement clearly illustrates the sequence of the wastewater treatment process; the first grid, second grid, and filter screen are progressively finer, with wastewater passing through three layers of filtration; the steps on the inner wall of the stepped pipe are used to place the grids, and the outer expansion pipe is used for connection; the design of the water outlet allows the water flow to be concentrated downwards, and can guide students to think about its impact on the direction and speed of the water flow, deepening their understanding of water flow dynamics; the connecting rings facilitate the assembly and disassembly of the teaching aid; and the transparent plastic allows for direct observation of the wastewater filtration process. Attached Figure Description

[0011] Figure 1 This is a perspective view of the present utility model;

[0012] Figure 2 This is the front view of the present invention;

[0013] Figure 3 This is a top view of the present invention;

[0014] Figure 4 for Figure 2 AA sectional view. Detailed Implementation

[0015] The present invention will now be described in detail with reference to the accompanying drawings.

[0016] To make the objectives, technical solutions, and advantages 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 only used to explain this utility model and are not intended to limit this utility model.

[0017] See Figures 1 to 4The utility model provides a sewage filtration experiment teaching aid, it includes first pipe fitting 1, second pipe fitting 3, water collecting box 6 from top to bottom are sequentially arranged, the structure of first pipe fitting 1, second pipe fitting 3 is same and transparent, adopts the layout from top to bottom sequentially arranged, and students can easily observe the whole path of sewage, clearly understands the sequence of sewage treatment process, and this kind of intuitive presentation mode helps students to quickly master relevant knowledge, first pipe fitting 1 is provided with first grid 2, second pipe fitting 3 is provided with second grid 4, filter screen 5 that distribute up and down, first grid, second grid, filter screen are refined gradually, and sewage passes through three layers of filtration in turn, and students can directly see the interception effect of different levels of filtration components to different size impurities in sewage, and vividly understand the principle of grading filtration, that is, the process of gradually purifying from large particle impurities to small particle impurities, compared with pure theory explanation, after sewage is filtered by first grid 2, second grid 4, filter screen 5 in turn, enter water collecting box 6, the top of water collecting box 6 is provided with air hole, the teaching aid displays sewage treatment process in the form of real object, can leave students with more profound impression, students can directly observe the flow of sewage in pipe fitting, the interception phenomenon of impurities by filtration components, this kind of intuitive visual experience can effectively improve the learning interest of students, enhance their memory and understanding to knowledge points, thereby improve teaching effect.

[0018] First pipe fitting 1 is composed of upper side ladder pipe and lower side outer expansion pipe, and the lower end of the inner wall of the ladder pipe is provided with a water outlet. The ladder pipe is wide at the top and narrow at the bottom, and the ladder of the inner wall is used for placing the grid. The outer expansion pipe is used for connection. The design of the water outlet can make the water flow concentrate and flow down, and can guide students to think about the influence on the direction and speed of water flow, and deepen the understanding of water flow dynamics.

[0019] First pipe fitting 1 is connected with second pipe fitting 3 through first connecting ring 7, and second pipe fitting 3 is connected with water collecting box 6 through second connecting ring 8. The structure of the first connecting ring and the second connecting ring is the same, and the connecting ring is made of rubber.

[0020] Second connecting ring 8 is arranged in the circular hole in the middle of water collecting box 6, second pipe fitting 3 is arranged on second connecting ring 8, first connecting ring 7 is arranged on second pipe fitting 3, and first pipe fitting 1 is arranged on first connecting ring 7. By using the arrangement mode, the teaching aid is convenient to assemble and disassemble.

[0021] First pipe fitting 1 and second pipe fitting 3 are both made of transparent plastic. The transparent plastic can directly observe the filtration condition of the sewage.

[0022] The working principle is as follows: pour the sewage into the first pipe fitting, filter out the large impurities through the first grid, and then flow into the second pipe fitting from the water outlet of the first pipe fitting. Filter out the small impurities through the second grid, and then filter out the small impurities through the filter screen. The filtered water enters the water collecting box from the water outlet of the second pipe fitting and is collected.

[0023] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A wastewater filtration experimental teaching aid, characterized in that: The system includes a first pipe fitting, a second pipe fitting, and a water collection box arranged sequentially from top to bottom. The first pipe fitting and the second pipe fitting have the same structure and are transparent. The first pipe fitting has a first grid inside, and the second pipe fitting has a second grid and a filter screen arranged vertically inside. Wastewater enters the water collection box after being filtered through the first grid, the second grid, and the filter screen in sequence.

2. The wastewater filtration experimental teaching aid as described in claim 1, characterized in that: The first pipe fitting consists of an upper stepped pipe connected to a lower outward-expanding pipe, and a water outlet is provided at the lower end of the inner wall of the stepped pipe.

3. The wastewater filtration experimental teaching aid as described in claim 1, characterized in that: The first pipe fitting and the second pipe fitting are connected by a first connecting ring, and the second pipe fitting is connected to the water collection box by a second connecting ring.

4. The wastewater filtration experimental teaching aid as described in claim 3, characterized in that: The second connecting ring is mounted on the round hole in the middle of the water collection box, the second pipe is mounted on the second connecting ring, the first connecting ring is mounted on the second pipe, and the first pipe is mounted on the first connecting ring.

5. The wastewater filtration experimental teaching aid as described in claim 1, characterized in that: Both the first and second fittings are made of transparent plastic.

6. The wastewater filtration experimental teaching aid as described in claim 1, characterized in that: The top of the water collection box has a vent.

Images