CN207352832U - A kind of bubble generating system for teaching demonstration - Google Patents
A kind of bubble generating system for teaching demonstration Download PDFInfo
- Publication number
- CN207352832U CN207352832U CN201721026822.2U CN201721026822U CN207352832U CN 207352832 U CN207352832 U CN 207352832U CN 201721026822 U CN201721026822 U CN 201721026822U CN 207352832 U CN207352832 U CN 207352832U
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- Prior art keywords
- bubble
- cylinder
- gas chamber
- lower cover
- interface
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Abstract
The utility model belongs to technical field of teaching instruments, it is related to a kind of bubble generating system for teaching demonstration, including water source and source of the gas, it is connected respectively with bubble generator, the first regulating valve and the second regulating valve are equipped between source of the gas and bubble generator, by magnetic control flow divider between second regulating valve and bubble generator, gas is divided into two air flues and is used to control pneumatic pull rod to move.The beneficial effects of the utility model are：It is simple in structure, it is easy to operate；Realize the change of kind of bubble shape and size more than 300；Observe the change of bubble intuitively, conveniently；Effectively demonstrate the change of bubble；Be conducive to the detection of industrial laboratories；Cost is low, easy to maintain.
Description
Technical field
The utility model belongs to technical field of teaching instruments, is related to a kind of bubble generating system for teaching demonstration.
Background technology
Now, in production, life, various bubble shapes are often observed, especially in some industrial productions
In occasion, the shape of bubble is different, it is meant that production environment is different, and quantitative measurement Bubble Formation Conditions of different shapes are to work
Industry production has directive significance.In teaching, in order to allow student to will appreciate that corresponding knowledge, also can often it use in a liquid
Add the experiment of different bubbles etc. so that student more easily grasps knowledge.For example, in hydromechanical teaching, bubble exists
Because the factors such as different water flowing situations, pressure can show variously-shaped in water, it is related to sufficiently complex hydrodynamics
Principle.If can certain device, by varying some parameters, demonstrate out variously-shaped bubble, beneficial to student intuitively
Solve hydrodynamics hard to understand, increase study enjoyment.Industrially also it is frequently necessary to do using bubble in the lab various
Experiment, the work such as to be detected.
But had a variety of bubble generators now, for example, the Chinese invention of Application No. CN201610053752
Patent, discloses a kind of bubble generator, including housing, the housing is interior formed with water cavity is crossed, and the water cavity of crossing is included greatly
Aperture section and small-bore section, the large aperture section are connected with the water inlet of the housing, the small-bore section and the housing
Water outlet connects；It is equipped with the large aperture section and streams portion, the portion of streaming includes wheel shaft and the impeller on the wheel shaft,
One end of the direction small-bore section of the wheel shaft is equipped with venthole, and the cavity wall for crossing water cavity is additionally provided with air admission hole, described
Air admission hole is connected with the venthole of the wheel shaft, for making air be entered successively via the air admission hole, the venthole
It is described to cross in water cavity.
The patent can be produced micro-nano in itself by the bubble generator not against other power-equipments by structure
Bubble so that bubble generator is simple in structure, volume reduces, low and application of consuming energy is convenient.When in use, current pass through
The water inlet is entered in the mistake water cavity, is first flowed through the large aperture section, is produced at the impeller for streaming portion of large aperture section
It is raw to surround current, negative pressure region is produced at the center of current, may be such that air via air inlet using the suction of negative pressure region
After hole is entered in wheel shaft, air column is formed after being sprayed via venthole.The junction of section and small-bore section in large aperture, around water
Stream shearing air section, air column cuts into a section air column by rotated flowing liquid, when high-speed rotating gas liquid mixture from it is described go out
When the mouth of a river sprays, the rotated flowing liquid for being mixed with air column is thrown out of the water outlet under the influence of centrifugal force, is subject to exterior relatively quiet
The only drag effects of liquid, rotation rapidly weaken destroyed, the substantial amounts of micro-nano bubble of generation.
But bubble generator as described above is all mostly single, is simply equipped, and intelligence is can not achieve in experimentation
Energyization controls, to realize the function of changing bubble various parameters as needed.Therefore, urgently one kind can intuitively, conveniently now
The various bubbles of different shapes of demonstration, so as to facilitate imparted knowledge to students, the bubble generator of the experiment such as industry.
Utility model content
The purpose of this utility model is in view of the deficiencies of the prior art, there is provided a kind of bubble system for teaching demonstration
System, can intuitively, easily demonstrate more than 300 kinds bubbles of different shapes, used for imparting knowledge to students, can be used for engineering test
Use.
The technical solution that the utility model solves the problems, such as is：A kind of bubble generating system for teaching demonstration, including water
Source and source of the gas, water source is connected by being equipped with the water inlet pipe of water pump and penstock successively with bubble generator, and is sent out from bubble
Another outlet of generating apparatus is connected to water source by return pipe；
It is equipped with the pipeline of air pump, air intake valve and outlet valve successively from source outlet connection, then by muffler from going out
Air valve is connected with source of the gas；
Between air intake valve and outlet valve, the first pressure reducing valve and the second decompression are connected to by two pipelines
Valve, the first pressure reducing valve are connected by the first air inlet pipe with bubble generator, and the second pressure reducing valve is connected with magnetic control flow divider, from magnetic
Control flow divider is connected by the second air inlet pipe and the 3rd air inlet pipe with bubble generator；
Magnetic control flow divider is connected with controller.
Further, bubble generator includes from top to bottom sequentially connected displaying pipe, bubble generation cylinder and pneumatically draws
Bar apparatus；
Displaying pipe includes the backwater interface for connecting return pipe and cylinder occurs for the bubble for being connected with bubble generation cylinder
Interface, backwater interface occur cylinder interface with bubble and are connected by vertical tube；
Cylinder, which occurs, for bubble includes the venting chambers of tubular, and venting chambers upper cover, venting chambers are equipped with the upper end opening of venting chambers
Upper cover center is equipped with, and the displaying interface tube that cylinder interface is connected occurs with the bubble for showing pipe；The lower ending opening that cylinder occurs in bubble is set
There is the venting chambers lower cover with centre bore, the water inlet being connected with water inlet pipe is equipped with venting chambers side wall；Interior is being abandoned,
The equalization gas chamber lower cover with the centre bore coaxial with the centre bore of venting chambers lower cover, Yi Jiyi are fixed with venting chambers lower cover
End opening coordinates with equalization gas chamber lower cover, the equalization gas chamber upper cover of the hollow form of other end closing, by under equalization gas chamber
Lid and equalization gas chamber upper cover surround equalization gas chamber, are inserted into and draw in the through hole of venting chambers lower cover and the lower cover of equalization gas chamber
Bar, the center of the blind end of equalization gas chamber have gas vent, through hole are equipped with the circumference of equalization gas chamber lower cover, is being deflated
Room side wall is equipped with the through hole coaxial with the through hole of equalization gas chamber lower cover, in the through hole of venting chambers and equalization gas chamber lower cover
Intake interface of the insertion with central through hole, intake interface are connected with the first air inlet pipe；
Pneumatic pull rod equipment includes cylinder and pneumatic pull rod, and pneumatic pull rod is installed on cylinder interior, and lower end is equipped with piston, living
Plug is contacted with cylinder wall, and pneumatic pull rod upper end is stretched out from cylinder upper end opening to be connected with pull rod, and the second air inlet pipe is in the piston
Connected above with cylinder top, the 3rd air inlet pipe connects below the piston with cylinder lower part.
Further, show that the bubble generation cylinder interface of pipe and the displaying interface tube of bubble generation cylinder are connected by groove clamping hoop
Connect.
Further, pneumatic pull rod is connected through a screw thread with pull rod.
The beneficial effects of the utility model are：
1. it is simple in structure, it is easy to operate；
2. the change of kind of bubble shape and size more than 300 is realized by a system；
3. observe the change of bubble intuitively, conveniently；
4. effectively demonstrate the change of bubble so that understanding of the student to knowledge becomes more easy；
5. be conducive to the detection of industrial laboratories；
6. cost is low, easy to maintain.
Brief description of the drawings
Fig. 1 is the schematic diagram that the system is formed.
Fig. 2 is the schematic diagram that bubble generator is formed.
Fig. 3 is the profile of displaying pipe.
Fig. 4 is the profile that cylinder occurs for bubble.
In figure：1- water sources, 2- water pumps, 3- penstocks, 4- bubble generators, 41- displaying pipes, 411- backwater interfaces,
412- vertical tubes, 413- bubbles generation cylinder interface, 42- bubbles generation cylinder, 4201- displaying interface tubes, 4202- venting chambers upper covers,
4203- venting chambers side walls, 4204- venting chambers, 4205- gas vents, 4206- water inlets, 4207- equalization gas chamber upper covers, 4208-
Equalization gas chamber, 4209- pull rods, 4210- equalization gas chamber lower covers, 4211- intake interfaces, 4212- venting chambers lower covers, 43- gas
Dynamic draw rod arrangement, the 3rd air inlet pipe of 5-, the second air inlet pipe of 6-, the first air inlet pipe of 7-, 8- return pipes, 9- sources of the gas, 10- air pumps, 11-
Air intake valve, the first pressure reducing valves of 12-, the second pressure reducing valves of 13-, 14- magnetic control flow dividers, 15- controllers, 16- water inlet pipes, 17- are returned
Tracheae, 18- outlet valves.
Embodiment
With reference to the accompanying drawings and detailed description, the utility model is further described.
Embodiment one
The system, as shown in Figure 1, including water source 1 and source of the gas 9, water source 1 by being equipped with water pump 2 and penstock 3 successively
Water inlet pipe 16 is connected with bubble generator 4, and is connected to from another outlet of bubble generator 4 by return pipe 8
Water source 1；
It is equipped with the pipeline of air pump 10, air intake valve 11 and outlet valve 18 successively from the outlet of source of the gas 9 connection, then passes through return-air
Pipe 17 is connected from outlet valve 18 with source of the gas 9；
Between air intake valve 11 and outlet valve 18, the first pressure reducing valve 12 and second is connected to by two pipelines
Pressure reducing valve 13, the first pressure reducing valve 12 are connected by the first air inlet pipe 7 with bubble generator 4, and the second pressure reducing valve 13 is connected with magnetic
Flow divider 14 is controlled, is connected from magnetic control flow divider 14 by the second air inlet pipe 6 and the 3rd air inlet pipe 5 with bubble generator 4；
Magnetic control flow divider 14 is connected with controller 15.
Further, as shown in Fig. 2, bubble generator 4 includes from top to bottom sequentially connected displaying pipe 41, bubble hair
Raw cylinder 42 and pneumatic draw rod arrangement 43；
As shown in figure 3, displaying pipe 41 is including for connecting the backwater interface 411 of return pipe 8 and for cylinder to occur with bubble
Cylinder interface 413 occurs for the bubble of 42 connections, and backwater interface 411 occurs cylinder interface 413 with bubble and connected by vertical tube 412；
As shown in figure 4, cylinder 42, which occurs, for bubble includes the venting chambers 4204 of tubular, set at the upper end opening of venting chambers 4204
There is venting chambers upper cover 4202,4202 center of venting chambers upper cover is equipped with, and the exhibition that cylinder interface 413 is connected occurs with the bubble for showing pipe 41
Show interface tube 4201；The lower ending opening that cylinder 42 occurs in bubble is equipped with the venting chambers lower cover 4212 with centre bore, in venting chambers
4204 side walls are equipped with the water inlet 4206 being connected with water inlet pipe 16；Abandoning in room 4204, it is solid with venting chambers lower cover 4212
Surely there are the equalization gas chamber lower cover 4210 with the centre bore coaxial with the centre bore of venting chambers lower cover 4212, and one end open
Coordinate with equalization gas chamber lower cover 4210, the equalization gas chamber upper cover 4207 of the hollow form of other end closing, by equalization gas chamber
Lower cover 4210 and equalization gas chamber upper cover 4207 surround equalization gas chamber 4208, in venting chambers lower cover 4212 and equalization gas chamber
Insertion pull rod 4209 in the through hole of lower cover 4210, the center of the blind end of equalization gas chamber 4208 has gas vent 4205, in gas
The circumference of body compensating chamber lower cover 4210 is equipped with through hole, is equipped with and equalization gas chamber lower cover 4210 on 4204 side wall of venting chambers
The coaxial through hole of through hole, air inlet of the insertion with central through hole in the through hole of venting chambers 4204 and equalization gas chamber lower cover 4210
Interface 4211, intake interface 4211 are connected with the first air inlet pipe 7；
Pneumatic pull rod equipment 43 includes cylinder and pneumatic pull rod, and pneumatic pull rod is installed on cylinder interior, and lower end is equipped with piston,
Piston is contacted with cylinder wall, and pneumatic pull rod upper end is stretched out from cylinder upper end opening to be connected with pull rod 4209, and the second air inlet pipe 6 is in institute
State and more than piston connected with cylinder top, the 3rd air inlet pipe 5 connects below the piston with cylinder lower part.
Vertical tube 412 is made of transparent resin.
Further, show that the displaying interface tube 4201 that cylinder 42 occurs with bubble for the bubble generation cylinder interface 413 of pipe 41 leads to
Cross groove clamping hoop connection.
Further, pneumatic pull rod is connected through a screw thread with pull rod 4209.
The utility model is not limited to the above embodiment, in the case of without departing substantially from the utility model in essence content, this
Any deformation, improvement, the replacement that field technology personnel are contemplated that each fall within the scope of protection of the utility model.
Claims (4)
1. a kind of bubble generating system for teaching demonstration, it is characterised in that including water source and source of the gas, water source by setting successively
The water inlet pipe for having water pump and penstock is connected with bubble generator, and is passed through back from another outlet of bubble generator
Water pipe is connected to water source；
It is equipped with the pipeline of air pump, air intake valve and outlet valve successively from source outlet connection, then by muffler from air outlet valve
Door is connected with source of the gas；
Between air intake valve and outlet valve, the first pressure reducing valve and the second pressure reducing valve are connected to by two pipelines, the
One pressure reducing valve is connected by the first air inlet pipe with bubble generator, and the second pressure reducing valve is connected with magnetic control flow divider, from magnetic control point
Stream valve is connected by the second air inlet pipe and the 3rd air inlet pipe with bubble generator；
Magnetic control flow divider is connected with controller.
2. system according to claim 1, it is characterised in that bubble generator includes sequentially connected exhibition from top to bottom
Show that cylinder and pneumatic draw rod arrangement occur for pipe, bubble；
Displaying pipe includes the backwater interface for connecting return pipe and cylinder interface occurs for the bubble for being connected with bubble generation cylinder,
Backwater interface occurs cylinder interface with bubble and is connected by vertical tube；
Cylinder, which occurs, for bubble includes the venting chambers of tubular, and venting chambers upper cover, venting chambers upper cover are equipped with the upper end opening of venting chambers
Center is equipped with, and the displaying interface tube that cylinder interface is connected occurs with the bubble for showing pipe；The lower ending opening that cylinder occurs in bubble is equipped with tool
There is the venting chambers lower cover of centre bore, the water inlet being connected with water inlet pipe is equipped with venting chambers side wall；Interior is being abandoned, with putting
Gas chamber lower cover is fixed with the equalization gas chamber lower cover with the centre bore coaxial with the centre bore of venting chambers lower cover, and one end is opened
Mouthful coordinate with equalization gas chamber lower cover, the equalization gas chamber upper cover of the hollow form of other end closing, by equalization gas chamber lower cover and
Equalization gas chamber upper cover surrounds equalization gas chamber, and pull rod is inserted into the through hole of venting chambers lower cover and the lower cover of equalization gas chamber,
The center of the blind end of equalization gas chamber has gas vent, through hole is equipped with the circumference of equalization gas chamber lower cover, in venting chambers
Side wall is equipped with the through hole coaxial with the through hole of equalization gas chamber lower cover, in venting chambers and the through hole interpolation of equalization gas chamber lower cover
Enter the intake interface with central through hole, intake interface is connected with the first air inlet pipe；
Pneumatic pull rod equipment includes cylinder and pneumatic pull rod, and pneumatic pull rod is installed on cylinder interior, and lower end is equipped with piston, piston with
Cylinder wall contacts, and pneumatic pull rod upper end is stretched out from cylinder upper end opening to be connected with pull rod, and the second air inlet pipe is more than the piston
Connected with cylinder top, the 3rd air inlet pipe connects below the piston with cylinder lower part.
3. system according to claim 2, it is characterised in that show that the bubble of pipe occurs cylinder interface and cylinder occurs with bubble
Displaying interface tube is connected by groove clamping hoop.
4. system according to claim 2, it is characterised in that pneumatic pull rod is connected through a screw thread with pull rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721026822.2U CN207352832U (en) | 2017-08-16 | 2017-08-16 | A kind of bubble generating system for teaching demonstration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721026822.2U CN207352832U (en) | 2017-08-16 | 2017-08-16 | A kind of bubble generating system for teaching demonstration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207352832U true CN207352832U (en) | 2018-05-11 |
Family
ID=62411437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721026822.2U Expired - Fee Related CN207352832U (en) | 2017-08-16 | 2017-08-16 | A kind of bubble generating system for teaching demonstration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207352832U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107331254A (en) * | 2017-08-16 | 2017-11-07 | 华北电力大学（保定） | System and method occurs for a kind of bubble for teaching demonstration |
-
2017
- 2017-08-16 CN CN201721026822.2U patent/CN207352832U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107331254A (en) * | 2017-08-16 | 2017-11-07 | 华北电力大学（保定） | System and method occurs for a kind of bubble for teaching demonstration |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180511 Termination date: 20200816 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |