CN203520716U - Teaching differential pressure transducer experiment apparatus - Google Patents
Teaching differential pressure transducer experiment apparatus Download PDFInfo
- Publication number
- CN203520716U CN203520716U CN201320634851.2U CN201320634851U CN203520716U CN 203520716 U CN203520716 U CN 203520716U CN 201320634851 U CN201320634851 U CN 201320634851U CN 203520716 U CN203520716 U CN 203520716U
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- water tank
- differential pressure
- transparent water
- experiment
- pressure pick
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Abstract
Disclosed in the utility model is a teaching differential pressure transducer experiment apparatus. The experiment apparatus comprises a sealed transparent water tank and a differential pressure transducer. A water filling port and an air pump connection port are arranged at the top end of the sealed transparent water tank; a water outlet is arranged at the bottom of the transparent water tank; and an electric heater is arranged in the middle of the water tank. And the differential pressure transducer is connected to the upper end and the lower end of the transparent water tank respectively by an upper leading-out pipeline and a lower leading-out pipeline. The provided experiment apparatus has the advantages of compact structure and simple, vivid and visual operation; the principle can be mastered by the hands-on experiment; and the experiment process can be completed by one time and the experiment result can also be obtained by one time, so that the single experiment period becomes short and the efficiency is high and thus the experiment effect is improved. Therefore, the provided apparatus has the practical significance.
Description
Technical field
The utility model relates to instruments used for education and apparatus field, relates in particular to a kind of teaching with the experimental provision of demonstration differential pressure pick-up principle of work.
Background technology
In modern commercial production, level gauging almost spreads all over the links of production run.At many production fields, not only to liquid level measurement precision, require high, also need measurement instrument to adapt to well the particular surroundings of industry spot, for example high temperature, high pressure, severe corrosive, highly active occasion, and transmit at a distance and in seal-off pressure container, use etc. situation.The features such as differential pressure type level gauging adopts the pressure principle of liquid, has precision high by approximately 0.7%, drifts about little, and anti-overload ability is strong are widely used in current commercial production.
Patent CN201010285523.7 discloses a kind of differential pressure type liquid level measurement device for pressure vessel, its be intended to effectively overcome single-compartment balance container method and two chambers equalizing reservoir method due to the water in forward voltage diode occur steam bubble and vaporization etc. cause density and liquid level uncertain, and the measuring error that causes of the installation site of differential pressure transmitter.Existing level gauging experimental provision situation, a lot of about level gauging, the patent of differential pressure type level gauging, article, it is mainly the improvement for measuring method, improve measuring accuracy etc., operation is comparatively complicated, use very inconvenient, when education experiment cannot image and help intuitively student to understand the principle of work of differential pressure pick-up.
Utility model content
For the problem of above-mentioned existence, the utility model object is to provide the experimental provision of a kind of simple to operate, visual in image teaching with differential pressure pick-up.
In order to achieve the above object, the technical solution adopted in the utility model is as follows: a kind of teaching with the experimental provision of differential pressure pick-up, described experimental provision comprises transparent water tank and the differential pressure pick-up of sealing, the top of described sealed transparent water tank is provided with water filling port and inflator pump access port, transparent water tank bottom is provided with freeing port, centre is provided with electric heater, and described differential pressure pick-up draws by upper and lower two the top and bottom that pipeline is connected to transparent water tank.
As a kind of improvement of the present utility model, the side of described transparent water tank is provided with graduated scale, the liquid adopting in water tank is ordinary tap water, by graduated scale and differential pressure pick-up liquid level display, jointly measure the liquid level in water tank, the precision that has improved experiment, facilitates the zeroing of liquid level gauge; The ordinary tap water simultaneously adopting is experimental water, takes conveniently safety non-pollution.
As a kind of improvement of the present utility model, described transparent water tank and differential pressure pick-up are arranged on same level height, and described lower fairlead level connection joint, between differential pressure pick-up and transparent water tank, has guaranteed liquid level gauge measuring accuracy, reduce experimental error.
The utility model has the advantage of: sensor experiment apparatus structure of the present utility model is compact, simple to operate, image, intuitively, by starting experiment help grasp principle, experimentation and experimental result can disposablely complete and obtain, make the single experiment cycle short, efficiency is high, thereby improved the effect of experiment, there is Practical significance, liquid level has two kinds of display packings simultaneously, a kind of depend on sealed transparent water tank with scale, another kind depends on differential pressure transmitter displayed value, by adjusting outside zero point, can make two kinds of method displayed values equate, increase the understanding of student to zeroing.
Accompanying drawing explanation
Fig. 1 is the utility model structure diagram;
Wherein, 1 water filling port, 2 inflator pump access ports, fairlead on 3,4 graduated scales, 5 electric heaters, 6 freeing port, 7 differential pressure pick-ups, 8 times fairleads, 9 transparent water tanks.
Embodiment
Below in conjunction with accompanying drawing explanation and embodiment, the utility model is described in further detail.
embodiment 1:a kind of teaching with the experimental provision of differential pressure pick-up as shown in Figure 1, described experimental provision comprises that the top of the transparent water tank 9 of sealing and differential pressure pick-up 7, described sealed transparent water tank 9 is provided with water filling port 1 and inflator pump access port 2, the bottom of transparent water tank 9 is provided with freeing port 6, centre is provided with electric heater 5, and described differential pressure pick-up 7 draws by upper and lower two the top and bottom that pipeline 3 and 8 is connected to transparent water tank 9.
embodiment 2:as shown in Figure 1, the side of described transparent water tank 9 is provided with graduated scale 4, and the liquid of water tank 9 interior employings is ordinary tap water, by graduated scale and differential pressure pick-up liquid level display, jointly measures the liquid level in water tank, the precision that has improved experiment, facilitates the zeroing of liquid level gauge; The ordinary tap water simultaneously adopting is experimental water, takes conveniently safety non-pollution.
embodiment 3:as shown in Figure 1, described transparent water tank 9 and differential pressure pick-up 7 are arranged on same level height, and described lower fairlead 8 level connection joints, between differential pressure pick-up 7 and transparent water tank 9, have guaranteed liquid level gauge measuring accuracy, reduce experimental error.
embodiment 4:the utility model operation experiments process: 1, do not inject during inflating pressure or discharge a part of water at inflator pump, liquid level changes, and pressure reduction changes, and liquid level gauge can correctly reflect that liquid level changes.
2,, when the water yield is constant, while using inflator pump inflating pressure, pressure reduction is constant, does not affect liquid level.
3, by electric heater, heat water temperature, according to water, from 0 ℃, be heated to 4 ℃ of volumes and reducing, from 4 ℃, heat again with temperature later and increase volume increase, when room temperature heats higher than 4 ℃, water volume increases volume with temperature and increases, and liquid level rises, pressure reduction changes, and can correctly reflect that liquid level changes
It should be noted that, above-mentioned is only preferred embodiment of the present utility model, is not used for limiting protection domain of the present utility model, and the equivalents of having done on the basis of above-described embodiment all belongs to protection domain of the present utility model.
Claims (3)
1. impart knowledge to students with the experimental provision of differential pressure pick-up for one kind, described experimental provision comprise sealing transparent water tank and differential pressure pick-up, it is characterized in that, the top of described transparent water tank is provided with water filling port and inflator pump access port, transparent water tank bottom is provided with freeing port, centre is provided with electric heater, and described differential pressure pick-up draws by upper and lower two the top and bottom that pipeline is connected to transparent water tank.
2. a kind of teaching with the experimental provision of differential pressure pick-up according to claim 1, is characterized in that, the side of described transparent water tank is provided with graduated scale, and the liquid adopting in water tank is ordinary tap water.
3. a kind of teaching with the experimental provision of differential pressure pick-up according to claim 1, is characterized in that, described transparent water tank and differential pressure pick-up are arranged on same level height, and described lower fairlead level connection joint is between differential pressure pick-up and transparent water tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320634851.2U CN203520716U (en) | 2013-10-15 | 2013-10-15 | Teaching differential pressure transducer experiment apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320634851.2U CN203520716U (en) | 2013-10-15 | 2013-10-15 | Teaching differential pressure transducer experiment apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203520716U true CN203520716U (en) | 2014-04-02 |
Family
ID=50379610
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320634851.2U Expired - Fee Related CN203520716U (en) | 2013-10-15 | 2013-10-15 | Teaching differential pressure transducer experiment apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203520716U (en) |
-
2013
- 2013-10-15 CN CN201320634851.2U patent/CN203520716U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140402 Termination date: 20141015 |
|
| EXPY | Termination of patent right or utility model |