CN203325291U - Temperature-changing type Boyle's law demonstrating device - Google Patents
Temperature-changing type Boyle's law demonstrating device Download PDFInfo
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- CN203325291U CN203325291U CN2013204445630U CN201320444563U CN203325291U CN 203325291 U CN203325291 U CN 203325291U CN 2013204445630 U CN2013204445630 U CN 2013204445630U CN 201320444563 U CN201320444563 U CN 201320444563U CN 203325291 U CN203325291 U CN 203325291U
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Abstract
The objective of the utility model is to provide a temperature-changing type Boyle's law demonstrating device which is great in airtight performance. The air temperature inside a container can be replaced and adjusted according to practical situations, and the influence of temperature on pressure changes can be displayed. The whole process is safe and visual. In order to achieve the mentioned effects, the temperature-changing type Boyle's law demonstrating device comprises a pedestal which is provided with a pressure metering device and a testing mouth. The pressure metering device and the testing mouth are connected via a communicating pipe embedded inside the pedestal. The testing mouth is provided with the container with fixed volume. The top end of the container is provided with a heat insulation top cover which is used for fixing an electric heating filament. As the mentioned technical scheme is adopted, temperature of the air in the container can be changed by heating the electric heating filament via a transformation device so that students can observe the influence of temperature change on pressure on the premise of safety.
Description
Technical field
The utility model relates to a kind of teaching demonstration equipment, relates in particular to a kind of temperature-change type ripple with ear law demonstration device.
Background technology
Under quantitative constant temperature, the volume of ideal gas and the pressure of gas are inversely proportional to.Be by Englishize scholar ripple with ear Boyle, test factually result in 1662 end of the year and propose: " quantitative gas in closed container, under constant temperature, the pressure of gas and the volume relation that is inversely proportional to." be referred to as ripple with the ear law.This is first found " law " on human history.This knowledge is also that each student needs to be grasped.
To this, intuitively understand this law for the ease of the student, the inventor once applied for utility model " ripple is with ear law tester ": patent No. CN200320108625.7 before 10 years.This utility model relates to a kind of ripple with ear law tester, and its structure comprises pedestal, is located at cylindrical container and air pressure metering outfit on pedestal, it is characterized in that described cylindrical container is provided with measuring scale, is provided with piston in it; Described barometric equipment is rain glass, and rain glass is connected with the cylindrical container pipeline, and described pipeline is provided with the valve switch that can be communicated with outside and the valve switch that can cut off pipeline gas.This utility model is pollution-free, reliability is high, measurement is accurate and experimental expenses is cheap, simple to operate, is conducive to student's understanding and grasps experimental principle.
But ripple of the prior art is with the variation of pressure in closed container in the situation that can't be illustrated in temperature variation in ear law demonstration device.To there is no corresponding demonstration equipment in this prior art yet.
The utility model content
The purpose of this utility model is to provide a kind of temperature-change type ripple with ear law demonstration device, and airtight performance is good, can change and regulate the gas in container temperature according to actual conditions, the impact that displays temperature changes pressure.Whole process safety is directly perceived.
For reaching described effect, the utility model temperature-change type ripple is with ear law demonstration device, comprise base, pressure measurement equipment and test port are installed on described base, between pressure measurement equipment and test port, by the communicating pipe be embedded in base, connect, container with fixed volume is installed on described test port, and described container head is provided with for the fixing heat insulation top cover of heater strip.
Preferably, described heat-insulating top covers and is provided with the fixedly adiabatic mouth of heater strip.Avoid like this heater strip to heat for a long time and cause deformation heat insulation top cover.
Preferably, scribble fluid sealant outside described communicating pipe.Such structure is guaranteed the leakproofness of whole device.
Preferably, described test port inboard is inlaid with flexible seal layer, and described flexible seal layer skin is equipped with set casing.Guarantee so not there will be leakage when connecting potential device, cause demonstrating inaccurate.
Preferably, described flexible seal layer is rubber seal.Rubber seal is inexpensive, and practical function might as well.
Preferably, described pressure measurement equipment is mechanical gauge.Mechanical gauge can embody malleation comparatively intuitively, the multiple situation such as negative pressure, and the beat of pointer is also very directly perceived.
Preferably, described potential device is for being with graduated syringe.Such structure can be convenient for changing different syringes, demonstrates different pressure conditions.
Owing to having adopted described technical scheme, the utility model can change the gas in container temperature by heating to heating wire by potential device.The impact that can make observation of students to temperature variation, pressure be caused under the prerequisite of safety like this.
The accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described in further detail:
Fig. 1 is the one-piece construction schematic diagram of the utility model temperature-change type ripple with ear law demonstration device.
Embodiment
As shown in Figure 1, the utility model temperature-change type ripple is with ear law demonstration device, comprise base 1, pressure measurement equipment 2 and test port 3 are installed on described base 1, between pressure measurement equipment 2 and test port 3, by the communicating pipe 4 be embedded in base 1, connect, container 5 with fixed volume is installed on described test port 3, and described container 5 tops are provided with for the fixing heat insulation top cover 7 of heater strip 6.Described heat insulation top cover 7 is provided with the fixedly adiabatic mouth 8 of heater strip 6.Described communicating pipes 4, the outside scribbled fluid sealant.Described test port 3 inboards are inlaid with flexible seal layer, and described flexible seal layer skin is equipped with set casing.Described flexible seal layer is rubber seal.Described pressure measurement equipment 2 is mechanical gauge.
Supercharging demonstration mode: after being arranged on test port 3 by container 5, check the leakproofness of various piece.Determine errorless rear heater strip 6 is heated.Container 5 tops are provided with for the fixing heat insulation top cover 7 of heater strip 6, and 6 of heater strips contact with the heat insulation top cover 7 of container top, do not touch other positions.Described heat insulation top cover 7 is provided with the fixedly adiabatic mouth 8 of heater strip 6.Make container deformation after avoiding like this heating for a long time.
Change successively temperature, and observe the corresponding pressure value that mechanical gauge shows, and record they (more than at least three times).Thereby learn the impact of temperature variation on pressure
Because the gas temperature variation is not obvious, therefore can in container 5, be filled with inert gas before use, exclude first the interior oxygen that may exist of container 5, avoid misoperation burning to occur, can carry out so for a long time air being heated.
The foregoing is only specific embodiment of the utility model, but architectural feature of the present utility model is not limited to this, any those skilled in the art is in field of the present utility model, and the variation of doing or modification all are encompassed among the scope of the claims of the present utility model.
Claims (6)
1. the temperature-change type ripple is with ear law demonstration device, comprise base (1), it is characterized in that: pressure measurement equipment (2) and test port (3) are installed on described base (1), between pressure measurement equipment (2) and test port (3), by the communicating pipe (4) be embedded in base (1), connect, container (5) with fixed volume is installed on described test port (3), and described container (5) top is provided with for the fixing heat insulation top cover (7) of heater strip (6).
2. temperature-change type ripple as claimed in claim 1, with ear law demonstration device, is characterized in that: described heat insulation top cover (7) is provided with fixedly adiabatic mouthful (8) of heater strip (6).
3. temperature-change type ripple as claimed in claim 1, with ear law demonstration device, is characterized in that: scribble fluid sealant outside described communicating pipe (4).
4. temperature-change type ripple as claimed in claim 1, with ear law demonstration device, is characterized in that: described test port (3) inboard is inlaid with flexible seal layer, and described flexible seal layer skin is equipped with set casing.
5. temperature-change type ripple as claimed in claim 4, with ear law demonstration device, is characterized in that: described flexible seal layer is rubber seal.
6. temperature-change type ripple as claimed in claim 1, with ear law demonstration device, is characterized in that: described pressure measurement equipment (2) is mechanical gauge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013204445630U CN203325291U (en) | 2013-07-23 | 2013-07-23 | Temperature-changing type Boyle's law demonstrating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013204445630U CN203325291U (en) | 2013-07-23 | 2013-07-23 | Temperature-changing type Boyle's law demonstrating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203325291U true CN203325291U (en) | 2013-12-04 |
Family
ID=49664608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013204445630U Expired - Fee Related CN203325291U (en) | 2013-07-23 | 2013-07-23 | Temperature-changing type Boyle's law demonstrating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203325291U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103544869A (en) * | 2013-07-23 | 2014-01-29 | 湖州文思必得科教仪器有限公司 | Varying-temperature Boyle's Law demonstrator |
| CN105303935A (en) * | 2015-11-23 | 2016-02-03 | 四川大学 | Apparatus for demonstrating bounce of bottle stopper of thermos bottle |
-
2013
- 2013-07-23 CN CN2013204445630U patent/CN203325291U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103544869A (en) * | 2013-07-23 | 2014-01-29 | 湖州文思必得科教仪器有限公司 | Varying-temperature Boyle's Law demonstrator |
| CN105303935A (en) * | 2015-11-23 | 2016-02-03 | 四川大学 | Apparatus for demonstrating bounce of bottle stopper of thermos bottle |
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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: 20131204 Termination date: 20140723 |
|
| EXPY | Termination of patent right or utility model |