CN204557882U - The automatically controlled feeder of a kind of reynolds experiment special-purpose colored water siphon valve-type - Google Patents
The automatically controlled feeder of a kind of reynolds experiment special-purpose colored water siphon valve-type Download PDFInfo
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- CN204557882U CN204557882U CN201520178426.6U CN201520178426U CN204557882U CN 204557882 U CN204557882 U CN 204557882U CN 201520178426 U CN201520178426 U CN 201520178426U CN 204557882 U CN204557882 U CN 204557882U
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- colored water
- automatically controlled
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- water
- colored
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Abstract
The utility model discloses the automatically controlled feeder of a kind of reynolds experiment special-purpose colored water siphon valve-type.There is colored water water storage case, tracheae, automatically controlled three-way air valve, air pump, valve, colored water filler and gland bonnet, U trap, colored water rising pipe, automatically controlled two breather valves, colored water entry needle and control circuit; The electronic control function of open and close or enriching colored water can be completed under the manipulation of control circuit.Easy to be stifled difficult thin, deep or light difficulty tune, operation inconvenience etc. that the utility model overcomes the regulation and control of traditional colored water micro valve are routine defect problem, have especially filled up in Automated condtrol type reynolds experiment system, the blank of the automatically controlled feeder of colored water.
Description
Technical field
The utility model relates to fluid mechanics hydraulics teaching and experiment equipment.Particularly relate to the automatically controlled feeder of a kind of reynolds experiment special-purpose colored water siphon valve-type.
Background technology
Reynolds experiment is must one of testing of classics traditional in fluid mechanics hydraulics.Along with the application of modern technologies, the exploitation also well afoot of Automated condtrol type reynolds experiment system.
Reynolds experiment requires observation tube fluid layer stream and turbulent flow fluidised form, measures critical Reynolds number.The fluidised form of observation tube stream annotates colored water in the duct as traced fluid.Observe the flow condition of traced fluid, to understand the flow characteristic of laminar flow and turbulent flow.The amount of added colored water is suitable with the dropped amount of people's door when beating salt solution tuck.When under laminar flow conditions, the not blending mutually of ducted fluid particle, does orderly stratification flowing without any confusion.Therefore, the colored water injected from pipeline opening can form straight line shape flow forward in the duct; When under turbulent flow condition, in pipe, the mutual blending of fluid particle, does unordered random motion.Therefore, the colored water water stock of injection is completely broken, to resemble as smog very fast diffusion to full pipe.The experiment effect of this experiment depends on the feeder of colored water and the adjusting function of valve thereof completely.On traditional experiment, colored water is directly supplied water by high-order water box and flexible pipe and valve gravity flow, because the output of its colored water is small, required water supply hose is the tubule that a diameter is about 1-2 millimeter, nearly 0.7 millimeter of colored water injection needle diameter, for the valve of open and close colored water, the manual modulation valve of conventional salt solution tuck traditionally, this valve is closed by hose squeezing, unclamps unlatching.Its Problems existing, behind 1, for a long time closedown, flexible pipe follows the string, and often understands opening failure; 2, connecting hose and colored water injection needle thereof are easy to be blocked by bubble or granule, and being especially trapped in colored water in pipe after experiment can not get rid of, and after dry, needle tubing is often scrapped, and causes difficulty to the maintenance of experiment instrument; 3, in this experiment, colored water consumption during laminar flow requires less, easily meets, but under turbulent flow condition, because the flow rate of water flow of pipe stream is comparatively large, requires that coloured water concentration strengthens, could show and allow student see the diffusion chaotic Phenomena of smoke-like.Classic method, after the elevation of colored water box is fixing, will improve the supply of colored water in experiment, the concentration strengthening colored water cannot realize, and deep or light difficulty is adjusted.4, in Automated condtrol type reynolds experiment system, it is automatically controlled that original experimental provision cannot realize robotization, and market can not find the like product about the automatically controlled feeder of colored water.
In order to overcome above deficiency, simultaneously in order to solve the technical barrier in Automated condtrol type reynolds experiment system, spy has invented this automatically controlled feeder.
Summary of the invention
The purpose of this utility model is to provide the automatically controlled feeder of a kind of reynolds experiment special-purpose colored water siphon valve-type, especially in order to solve the technical barrier in Automated condtrol type reynolds experiment system, fills up the blank of the deep or light controlled automatically controlled feeder of this field colored water.
The technical solution of the utility model is as follows:
The automatically controlled feeder of a kind of reynolds experiment special-purpose colored water siphon valve-type has colored water water storage case, tracheae, automatically controlled three-way air valve, air pump, valve, colored water filler and gland bonnet, U trap, colored water rising pipe, automatically controlled two breather valves, colored water entry needle and control circuit;
The top of colored water water storage case is provided with valve and colored water filler and gland bonnet, valve is connected with automatically controlled three-way air valve by tracheae, automatically controlled three-way air valve is connected with air pump by tracheae, U trap inserts in colored water water storage case, the part that U trap exposes colored water water storage case is provided with valve and water nozzle, valve is positioned at above or below water nozzle, and siphonal valve is connected with automatically controlled two breather valves, and siphonal water nozzle is connected with colored water entry needle by colored water rising pipe.
Described control circuit forms by power-on switch by power-on switch, second by first, first presses power-on switch one end is connected with positive source, the other end is connected with the positive pole of automatically controlled three-way air valve, air pump respectively, automatically controlled three-way air valve, air pump negative pole are connected with power cathode, second presses power-on switch one end is connected with positive source, the other end is connected with the positive pole of automatically controlled two breather valves, and automatically controlled two breather valve negative poles are connected with power cathode.
The device provides the automatically controlled feeder of a kind of reynolds experiment special-purpose colored water siphon valve-type, especially solve the technical barrier in Automated condtrol type reynolds experiment system, fill up the blank of the deep or light controlled automatically controlled feeder of this field colored water.
The beneficial effect that the utility model has is:
1, the device provides the automatically controlled feeder of a kind of reynolds experiment special-purpose colored water siphon valve-type, especially solve the technical barrier in Automated condtrol type reynolds experiment system, fill up the blank of the deep or light controlled automatically controlled feeder of this field colored water.
What 2, the utility model overcame the regulation and control of traditional colored water micro valve easily stifled difficultly dredges, operation inconvenience etc. is routine defect problem.Such as, connecting hose and colored water injection needle thereof are easy to be blocked by bubble or granule, and being especially trapped in colored water in pipe after experiment can not get rid of, and after dry, needle tubing is often scrapped.The utility model has the function of dredging colored water rising pipe and colored water entry needle, and is electric-controlled type, easy to operate.
3, colored water is deep or light automatically controlled adjustable, easy and simple to handle.
4, the utility model is as hydrodynamic calculations instruments used for education, and the fluid mechanics principle that make use of of novelty solves an experiment difficult problem, the creativity consciousness of the student that can motivate students' interest in learning, inspire, useful to cultivation innovation ability, possesses good teaching efficiency.
Accompanying drawing explanation
Fig. 1 is parts composition and the connection diagram of the automatically controlled feeder of reynolds experiment special-purpose colored water siphon valve-type,
Fig. 2 is control circuit schematic diagram of the present utility model;
In figure, colored water water storage case 1, tracheae 2, automatically controlled three-way air valve 3, air pump 4, valve 5, colored water filler and gland bonnet 6, U trap 7, colored water rising pipe 8, automatically controlled two breather valves 9, colored water entry needle 10, the first presses power-on switch 11, and second presses power-on switch 12.
Embodiment
As illustrated in fig. 1 and 2, the automatically controlled feeder of a kind of reynolds experiment special-purpose colored water siphon valve-type has colored water water storage case 1, tracheae 2, automatically controlled three-way air valve 3, air pump 4, valve 5, colored water filler and gland bonnet 6, U trap 7, colored water rising pipe 8, automatically controlled two breather valves 9, colored water entry needle 10 and control circuit;
The top of colored water water storage case 1 is provided with valve 5 and colored water filler and gland bonnet 6, valve 5 is connected with automatically controlled three-way air valve 3 by tracheae 2, automatically controlled three-way air valve 3 is connected with air pump 4 by tracheae 2, U trap 7 inserts in colored water water storage case 1, the part that U trap 7 exposes colored water water storage case 1 is provided with valve and water nozzle, valve is positioned at above water nozzle, and the valve of U trap 7 is connected with automatically controlled two breather valves 9, and the water nozzle of U trap 7 is connected with colored water entry needle 10 by colored water rising pipe 8.
Colored water water storage case is arranged on higher position, and its position height should make minimum level in box all the time higher than the most high liquid level (HLL) of reynolds test instrument supply tank, colored water also should be made to flow automatically in injection experiments pipeline simultaneously.Add colored water by colored water filler 6, and use seal cap sealing.Be connected with valve 5 by threeway common port with tracheae, normal-closed end is connected with air pump, and the Chang Kaiduan of threeway leads to air.Automatically controlled three-way air valve is in no power situation, and common port leads to air, and during energising, common port communicates with air pump, and with large flow of QI being obstructed.Be connected with normally closed automatically controlled two breather valves by the ozzle at U trap top, the automatically controlled two breather valve other ends lead to air.Automatically controlled two breather valves are closed in no power situation, open-minded during energising.By another ozzle on U trap top, be connected with entry needle 10.Its siphonal bottom opening, top seal.
Described control circuit forms by power-on switch 12 by power-on switch 11, second by first, first presses power-on switch 11 one end is connected with positive source, the other end is connected with the positive pole of automatically controlled three-way air valve 3, air pump 4 respectively, automatically controlled three-way air valve 3, air pump 4 negative pole are connected with power cathode, second presses power-on switch 12 one end is connected with positive source, the other end is connected with the positive pole of automatically controlled two breather valves 9, and automatically controlled two breather valve 9 negative poles are connected with power cathode.
The reynolds experiment special-purpose colored water power control supply method of described automatically controlled feeder is:
1) colored water siphon injection is opened
When pressing first by when opening up pass 11, air pump and automatically controlled three-way air valve are energized simultaneously, colored water water storage case 1 is cut off by automatically controlled three-way air valve with the path of air, air pump is to air feed in box, box internal gas pressure improves, colored water liquid level in U trap improves thereupon, the air on pipe top is discharged via colored water rising pipe 8, colored water entry needle 10, until colored water is full of U trap pipe top and colored water rising pipe 8, form siphon jet, after colored water goes out stream from colored water entry needle 10, unclamp first again by opening up pass 11;
2) the deep or light adjustment of colored water
The deep or light i.e. water supply flow size of colored water is by automatically controlled realization, under the siphon inject state of colored water proper flow, press first by opening up pass 11, air pump communicates with ozzle 5, aerating in box, water storage case is closed simultaneously, air pressure improves, and colored water flow increases, and colored water concentration in experimental channel is increased, the time of pressing is longer, and the colored water concentration in pipeline is denseer; During general experiment, press the button 11 as long as of short duration, the colored water of annotating, be just enough to show the fluidised form of turbulent flow, and display effect is perfectly clear.
3) colored water siphon injection is closed
Under the normal siphon inject state of colored water, the valve (5) at colored water water storage case (1) top communicates with air through automatically controlled three-way air valve (3), and in water storage case, air is in uncovered passive state.In box, water level is to present negative pressure in the U trap of upper part, and when pressing second by when opening up pass (12), automatically controlled two breather valves (9) are opened.Under atmospheric pressure effect, air-flow flows into U trap top through automatically controlled two breather valves, and vacuum is destroyed, and U trap stops, and namely colored water supply is closed.
This device being realized valve switch function by U trap principle, is called it " siphon valve " herein.
4) pipeline dredging method is injected
After experiment terminates, pin second by opening up pass (12) several seconds, unclamping again when liquid level drop near the liquid level in colored water storage box (1) in piezometric tube, then pressing by opening up pass (11) several seconds, unclamp when piezometric tube liquid level rises near the valve at top or water nozzle.So repeatedly several times, colored water in communicating pipe (8) and entry needle (10) can be got rid of clean, because the air pressure of air pump can reach more than 3 meter water columns, therefore this process is drainage exhaust process, is again the process utilizing the air pressure of air pump to dredge pipeline and needle tubing.
Claims (2)
1. the automatically controlled feeder of reynolds experiment special-purpose colored water siphon valve-type, is characterized in that it has colored water water storage case (1), tracheae (2), automatically controlled three-way air valve (3), air pump (4), valve (5), colored water filler and gland bonnet (6), U trap (7), colored water rising pipe (8), automatically controlled two breather valves (9), colored water entry needle (10) and control circuit;
The top of colored water water storage case (1) is provided with valve (5) and colored water filler and gland bonnet (6), valve (5) is connected with automatically controlled three-way air valve (3) by tracheae (2), automatically controlled three-way air valve (3) is connected with air pump (4) by tracheae (2), U trap (7) inserts in colored water water storage case (1), the part that U trap (7) exposes colored water water storage case (1) is provided with valve and water nozzle, valve can be located at above or below water nozzle, the valve of U trap (7) is connected with automatically controlled two breather valves (9), the water nozzle of U trap (7) is connected with colored water entry needle (10) by colored water rising pipe (8).
2. the automatically controlled feeder of reynolds experiment according to claim 1 special-purpose colored water siphon valve-type, it is characterized in that described control circuit is by power-on switch (11) by first, second presses power-on switch (12) composition, first presses power-on switch (11) one end is connected with positive source, the other end respectively with automatically controlled three-way air valve (3), the positive pole of air pump (4) is connected, automatically controlled three-way air valve (3), air pump (4) negative pole is connected with power cathode, second presses power-on switch (12) one end is connected with positive source, the other end is connected with the positive pole of automatically controlled two breather valves (9), automatically controlled two breather valves (9) negative pole is connected with power cathode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520178426.6U CN204557882U (en) | 2015-03-27 | 2015-03-27 | The automatically controlled feeder of a kind of reynolds experiment special-purpose colored water siphon valve-type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520178426.6U CN204557882U (en) | 2015-03-27 | 2015-03-27 | The automatically controlled feeder of a kind of reynolds experiment special-purpose colored water siphon valve-type |
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| CN204557882U true CN204557882U (en) | 2015-08-12 |
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| CN201520178426.6U Withdrawn - After Issue CN204557882U (en) | 2015-03-27 | 2015-03-27 | The automatically controlled feeder of a kind of reynolds experiment special-purpose colored water siphon valve-type |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104778882A (en) * | 2015-03-27 | 2015-07-15 | 浙江大学 | Special colored water siphon valve type electronic control feeder for Reynolds experiment and method thereof |
-
2015
- 2015-03-27 CN CN201520178426.6U patent/CN204557882U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104778882A (en) * | 2015-03-27 | 2015-07-15 | 浙江大学 | Special colored water siphon valve type electronic control feeder for Reynolds experiment and method thereof |
| CN104778882B (en) * | 2015-03-27 | 2017-09-29 | 浙江大学 | The special-purpose colored automatically controlled feeder of water siphon valve-type of reynolds experiment and its method |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150812 Effective date of abandoning: 20170929 |