CN106991881B - Swirl demonstrating device - Google Patents
Swirl demonstrating device Download PDFInfo
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- CN106991881B CN106991881B CN201710410543.4A CN201710410543A CN106991881B CN 106991881 B CN106991881 B CN 106991881B CN 201710410543 A CN201710410543 A CN 201710410543A CN 106991881 B CN106991881 B CN 106991881B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 86
- 230000000694 effects Effects 0.000 abstract description 4
- 229920000426 Microplastic Polymers 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
Classifications
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/06—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics
- G09B23/08—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for statics or dynamics
- G09B23/12—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for statics or dynamics of liquids or gases
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- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
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- Mathematical Physics (AREA)
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- Algebra (AREA)
- Pure & Applied Mathematics (AREA)
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- Business, Economics & Management (AREA)
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Abstract
The invention discloses a rotational flow demonstration device which is characterized by comprising a cylinder, wherein a central outflow port is arranged in the center of the bottom of the cylinder, a plurality of main inflow ports distributed along the circumferential direction are arranged on the periphery of the bottom of the cylinder, the main inflow ports uniformly incline towards each other, and the total area of the main inflow ports is larger than that of the central outflow port. The invention solves the problem of poor teaching effect caused by poor swirl display effect in the conventional teaching.
Description
Technical Field
The invention relates to physical demonstration equipment, in particular to a rotational flow demonstration device.
Background
The teaching of the education in the lively activities is an important view of the action of the poems, which is proposed by ancient Roman and literature theories in the poetry, namely, the poems are supposed to bring fun and benefit to people, and the teaching of the education in the legend is also supposed to be persuaded by readers to help the readers.
With the development of society, the subjects of the society today are becoming more and more refined and diversified, and the fields of physics, chemistry, biology, medicine and the like are covered. The physics is a basic subject, which also reveals and utilizes the law of nature, and brings great influence to life and social progress of people, so that the physics affects the aspects of our life nowadays.
In the junior middle school, students need to learn physical knowledge, and in the physical course teaching, more teachers teach the knowledge to students in theoretical descriptions, and the way of teaching the knowledge is too limited and boring, so that the teaching quality is poor. In the course of explaining the rotational flow, some teachers can fill the rotational flow with a mineral water bottle for more vividly displaying the rotational flow, and shake the rotational flow with hands, so that the rotational flow is generated. However, such swirling typically lasts for a short period of time, thereby making it impossible for students to observe the swirling more intuitively and for a longer period of time.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a rotational flow demonstration device which can enable students to observe rotational flow more intuitively and for a long time through continuously generating rotational flow.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a whirl presentation device, includes the drum, the bottom center of drum is provided with central outlet, the bottom periphery of drum is provided with a plurality of main inlet that arrange along the circumferencial direction, a plurality of main inlet unified slope orientation, the total area of main inlet is greater than the total area of central outlet.
By adopting the technical scheme, water flow is sprayed into the cylinder from the main inlet, the total area of the main inlet is larger than that of the central outlet, so that the water inflow is larger than the water outflow, after a period of time, water can be stored in the cylinder to a certain height, and then water inflow is kept. The continuous water inflow is kept, so that the cyclone can be continuously generated, and a viewer can observe the cyclone more intuitively and for a long time.
Preferably, the periphery of the central outlet is provided with a plurality of auxiliary inlet openings distributed along the circumferential direction, the auxiliary inlet openings are positioned at the inner periphery of the main inlet opening, and the total area of the main inlet openings and the auxiliary inlet openings is larger than that of the central outlet opening.
By adopting the technical scheme, the cyclone generating efficiency is higher, and the water supplementing speed is higher.
Preferably, the bottom of the cylinder is connected with a disc, the disc comprises a chassis, an inner ring and an outer ring, the inner ring and the outer ring are arranged on the same surface of the chassis, a main inflow cavity communicated with a main inflow port is formed between the inner ring and the outer ring, and a main water inlet is arranged at the bottom of the main inflow cavity.
By adopting the technical scheme, water is sprayed out from each main inlet after entering the main inlet cavity from the main water inlet, so that the water enters from the main water inlet in a concentrated way, and pipelines for connecting the main inlet are reduced.
Preferably, an inner ring is arranged on the inner side of the inner ring, the central outflow opening is positioned on the inner side of the inner ring, an auxiliary inflow cavity communicated with the auxiliary inflow opening is formed between the inner ring and the inner ring, and an auxiliary water inlet is formed in the bottom of the auxiliary inflow cavity.
By adopting the technical scheme, water is sprayed out from each auxiliary inflow opening after entering the auxiliary inflow cavity from the auxiliary water inlet, so that the water enters from the auxiliary water inlet in a concentrated manner, and pipelines for connecting the auxiliary inflow openings are reduced.
Preferably, the main water inlet is connected with a main water inlet pipe, the auxiliary water inlet is connected with an auxiliary water inlet pipe, a main throttle valve is arranged on the main water inlet pipe, and an auxiliary throttle valve is arranged on the auxiliary water inlet pipe.
Through adopting above-mentioned technical scheme, can adjust rotational speed and the flow of whirl respectively through the flow size of adjusting main choke valve and auxiliary choke valve.
Preferably, the rotational flow demonstration device further comprises a water tank positioned below the cylinder.
By adopting the technical scheme, the discharged water can be collected by the water tank, so that the recycling effect is achieved.
Preferably, a pillar for supporting the cylinder is arranged between the water tank and the cylinder.
By adopting the technical scheme, a gap is formed between the cylinder and the bottom of the water tank, so that water discharged from the central outflow port can flow out conveniently.
Preferably, an opening is formed in the side face of the water tank.
By adopting the technical scheme, the water in the water tank is more convenient to discharge.
In summary, compared with the prior art, the invention has the following beneficial effects: the invention is more convenient for the observer to continuously and intuitively observe the rotational flow, and the speed and the water quantity can be controlled.
Drawings
FIG. 1 is an isometric view of an embodiment;
FIG. 2 is an exploded view of an embodiment;
Fig. 3 is an isometric view of a base plate of an embodiment.
In the figure: 1. a cylinder; 11. a cylinder; 12. a bottom plate; 121. a central outflow port; 122. a main inlet; 123. an auxiliary inlet; 2. a disc; 21. a chassis; 22. an outer ring; 23. an inner ring; 24. an inner ring; 25. an auxiliary inflow cavity; 26. a main inflow cavity; 27. an auxiliary water inlet; 28. a main water inlet; 3. a water tank; 4. a bar-shaped groove; 5. a main water inlet pipe; 6. an auxiliary water inlet pipe; 7. and (5) a pillar.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings.
Examples: referring to fig. 1, the swirl flow demonstration device sequentially comprises a water tank 3, a disc 2 and a cylinder 1 from bottom to top. Wherein the cylinder 1 is made of a transparent material, such as transparent plastic or glass, in order to observe the swirling flow generated in the cylinder 1.
Referring to fig. 2, the cylinder 1 includes a cylindrical body 11 in the shape of a cylinder 1 and a disk-shaped bottom plate 12, a central flow outlet 121 is formed in the center of the bottom plate 12, a plurality of main flow inlets 122 distributed along the circumferential direction are arranged on the periphery of the bottom plate 12, the plurality of main flow inlets 122 are uniformly inclined towards each other, a circle of auxiliary flow inlets 123 distributed along the circumferential direction are further arranged between the central flow outlet 121 and the main flow inlets 122, the auxiliary flow inlets 123 are vertically arranged, and the total area of the main flow inlets 122 and the auxiliary flow inlets 123 is larger than the total area of the central flow outlets 121. Wherein, the bottom plate 12 is thick and thin and takes a step shape, thereby being convenient for installation with the cylinder 11. In the embodiment, the outer diameter of the cylinder 11 is 800mm, the inner diameter is 780mm, and the cylinder height is 1000mm; the size of the bottom plate 12, the size of the main inlet 122, the central outlet 121 and the auxiliary inlet 123 are designed according to the size of the cylinder 11, the diameter of the thicker part of the bottom plate 12 is 780mm, the outer diameter is 1000mm, the circumference diameter of the main inlet 122 is 600mm, the aperture of the main inlet 122 is 40mm, the inclination angle is 45 degrees, the diameter of the central outlet 121 is 140mm, the circumference diameter of the auxiliary inlet 123 is 300mm, and the aperture of the main inlet 122 is 20mm.
The bottom of the cylinder 1 is a disc 2, the disc 2 comprises a chassis 21, an inner ring 23 and an outer ring 22 which are arranged on the same surface of the chassis 21, a main inflow cavity 26 communicated with a main inflow port 122 is formed between the inner ring 23 and the outer ring 22, and a main water inlet 28 is arranged at the bottom of the main inflow cavity 26. An inner ring 24 is arranged on the inner side of the inner ring 23, a central outflow port 121 is positioned on the inner side of the inner ring 24, an auxiliary inflow cavity 25 communicated with an auxiliary inflow port 123 is formed between the inner ring 23 and the inner ring 24, and an auxiliary water inlet 27 is formed in the bottom of the auxiliary inflow cavity 25. The main water inlet 28 is connected with the main water inlet pipe 5, the auxiliary water inlet 27 is connected with the auxiliary water inlet pipe 6, a main throttle valve (not shown in the figure) is arranged on the main water inlet pipe 5, and an auxiliary throttle valve (not shown in the figure) is arranged on the auxiliary water inlet pipe 6. The aperture of the hole surrounded by the inner ring 24 is 250mm, the wall thicknesses of the inner ring 24, the inner ring 23 and the outer ring 22 are 10mm, the inner diameter of the inner ring 23 is 500mm, and the outer diameter of the outer ring 22 is 1000mm.
The opening of the water tank 3 below the cylinder 1 is connected with a strip-shaped groove 4, thereby facilitating the discharge of water. A pillar 7 for supporting the cylinder 1 is provided between the water tank 3 and the cylinder 1, and the main water inlet pipe 5 and the auxiliary water inlet pipe 6 respectively penetrate through the bottom of the water tank 3. The main inlet pipe 5 and the auxiliary inlet pipe 6 are connected to the outlet end of a water pump (not shown in the figure), the inlet end of which is connected to a water tank (not shown in the figure) to which the water of the bar-shaped tank 4 can flow, so that it can constitute a circulating water system.
During demonstration, water flow is sprayed into the cylinder 1 from the main inlet 122 and the auxiliary inlet 123, the total area of the main inlet 122 and the auxiliary inlet 123 is larger than the total area of the central outlet 121, so that the water inflow is larger than the water outflow, after a period of time, the cylinder 1 can store water to a certain height, and after that, water is kept to flow, the water in the cylinder 1 is sprayed into the water in the cylinder 1 in an inclined way due to the fact that the water in the main inlet 122 is sprayed into the water in the cylinder 1 in an inclined way and forms a circular ring, so that rotational flow can occur in the water in the cylinder 1, and the rotational flow is discharged from the central outlet 121. The continuous water inflow is kept, so that the cyclone can be continuously generated, and a viewer can observe the cyclone more intuitively and for a long time. Also, the main inlet 122 and the auxiliary inlet 123 both feed water into the cylinder 1, and the rotational speed and flow rate of the swirl flow can be controlled by controlling the main throttle valve and the auxiliary throttle valve. Since the main inlet 122 is obliquely arranged, the control of the main throttle valve can control the rotational flow speed, and since the auxiliary inlet 123 is vertically arranged, the control of the auxiliary throttle valve can control the rotational flow water inflow.
In addition, hollow plastic pellets can be put into the cylinder 1 and are in a floating state on a calm water surface due to their large volume and small mass, but in the demonstration of this embodiment, the hollow plastic pellets are quickly brought in by swirling flow, are always rotationally attracted to the water bottom from the water surface, and are discharged from the center outflow port 121. Since the support posts 7 support the cylinder 1, the hollow plastic pellets can flow out of the bottom of the cylinder 1 and be collected in the water tank 3.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above examples, and all technical solutions belonging to the concept of the present invention belong to the protection scope of the present invention. It should be noted that modifications and adaptations to the present invention may occur to one skilled in the art without departing from the principles of the present invention and are intended to be within the scope of the present invention.
Claims (6)
1. A rotational flow demonstration device is characterized in that: the device comprises a cylinder (1), wherein a central outflow opening (121) is arranged at the center of the bottom of the cylinder (1), a plurality of main inflow openings (122) distributed along the circumferential direction are arranged at the periphery of the bottom of the cylinder (1), the plurality of main inflow openings (122) are uniformly inclined towards each other, and the total area of the main inflow openings (122) is larger than that of the central outflow opening (121);
The rotational flow demonstration device is characterized in that a plurality of auxiliary inflow openings (123) distributed along the circumferential direction are formed in the periphery of the central outflow opening (121), a disc (2) is connected to the bottom of the cylinder (1), the disc (2) comprises a chassis (21) and an inner ring (23) and an outer ring (22) which are arranged on the same surface of the chassis (21), a main inflow cavity (26) communicated with the main inflow opening (122) is formed between the inner ring (23) and the outer ring (22), a main water inlet (28) is formed in the bottom of the main inflow cavity (26), and the rotational flow demonstration device further comprises a water tank (3) located below the cylinder (1).
2. The rotational flow demonstration device according to claim 1, wherein: the auxiliary inlet (123) is located at the inner periphery of the main inlet (122), and the total area of the main inlet (122) and the auxiliary inlet (123) is larger than the total area of the central outlet (121).
3. The rotational flow demonstration device according to claim 1, wherein: the inner side of the inner ring (23) is provided with an inner ring (24), the central outflow opening (121) is positioned at the inner side of the inner ring (24), an auxiliary inflow cavity (25) communicated with the auxiliary inflow opening (123) is formed between the inner ring (23) and the inner ring (24), and an auxiliary water inlet (27) is formed at the bottom of the auxiliary inflow cavity (25).
4. A swirl imparting mechanism according to claim 3, characterised in that: the main water inlet (28) is connected with a main water inlet pipe (5), the auxiliary water inlet (27) is connected with an auxiliary water inlet pipe (6), a main throttle valve is arranged on the main water inlet pipe (5), and an auxiliary throttle valve is arranged on the auxiliary water inlet pipe (6).
5. The rotational flow demonstration device according to claim 1, wherein: a support column (7) for supporting the cylinder (1) is arranged between the water tank (3) and the cylinder (1).
6. The rotational flow demonstration device according to claim 1, wherein: an opening is formed in the side face of the water tank (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710410543.4A CN106991881B (en) | 2017-06-03 | 2017-06-03 | Swirl demonstrating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710410543.4A CN106991881B (en) | 2017-06-03 | 2017-06-03 | Swirl demonstrating device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106991881A CN106991881A (en) | 2017-07-28 |
| CN106991881B true CN106991881B (en) | 2024-04-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710410543.4A Active CN106991881B (en) | 2017-06-03 | 2017-06-03 | Swirl demonstrating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106991881B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3180579U (en) * | 2012-10-12 | 2012-12-27 | 千恵 坂北 | Aquarium |
| CN103539211A (en) * | 2013-10-10 | 2014-01-29 | 彭伟明 | Vortex water activation method and device |
| CN204087612U (en) * | 2014-11-14 | 2015-01-07 | 杜春兴 | The demonstrator of a kind of wind spout, tourbillion and husky nest |
| CN106381832A (en) * | 2016-09-12 | 2017-02-08 | 河海大学 | Experimental simulation device integrating vortex suppression and power generation |
| CN207302430U (en) * | 2017-06-03 | 2018-05-01 | 北京黄金池科技有限公司 | Eddy flow apparatus for demonstrating |
-
2017
- 2017-06-03 CN CN201710410543.4A patent/CN106991881B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3180579U (en) * | 2012-10-12 | 2012-12-27 | 千恵 坂北 | Aquarium |
| CN103539211A (en) * | 2013-10-10 | 2014-01-29 | 彭伟明 | Vortex water activation method and device |
| CN204087612U (en) * | 2014-11-14 | 2015-01-07 | 杜春兴 | The demonstrator of a kind of wind spout, tourbillion and husky nest |
| CN106381832A (en) * | 2016-09-12 | 2017-02-08 | 河海大学 | Experimental simulation device integrating vortex suppression and power generation |
| CN207302430U (en) * | 2017-06-03 | 2018-05-01 | 北京黄金池科技有限公司 | Eddy flow apparatus for demonstrating |
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| CN106991881A (en) | 2017-07-28 |
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Effective date of registration: 20240325 Address after: No. 1-844, Enterprise Service Center, Yongledian Town, Tongzhou District, Beijing, 101105 Applicant after: Zhongheng Huizai (Beijing) New Energy Technology Co.,Ltd. Country or region after: China Address before: Room 02B-248, Building B (2nd Floor), No.28 Information Road, Haidian District, Beijing, 100085 Applicant before: BEIJING GOLDEN POOL TECHNOLOGY CO.,LTD. Country or region before: China |
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