CN208140619U - A kind of experimental provision of adiabatic expansion method measurement air specific heat ratio - Google Patents
A kind of experimental provision of adiabatic expansion method measurement air specific heat ratio Download PDFInfo
- Publication number
- CN208140619U CN208140619U CN201820731543.4U CN201820731543U CN208140619U CN 208140619 U CN208140619 U CN 208140619U CN 201820731543 U CN201820731543 U CN 201820731543U CN 208140619 U CN208140619 U CN 208140619U
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- China
- Prior art keywords
- air
- adiabatic expansion
- bottle body
- specific heat
- expansion method
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Abstract
The utility model discloses a kind of experimental provisions of adiabatic expansion method measurement air specific heat ratio,Including bottle body and compressed air cylinder,The compressed air cylinder is mounted on bottle body side,The bottle side wall includes inner sidewall and lateral wall,Resistive heater is covered in cavity between the inner sidewall and lateral wall,Bottleneck is equipped at the top of the bottle body,The bottleneck is equipped with plunger,Running through on the plunger has escape pipe,Thermocouple thermometer,Air gauge and air inlet pipe,Air valve is mounted in the escape pipe and air inlet pipe,The exhaust pipe of the compressed air tank top connection is communicated with desiccant case,It is connected at the top of the desiccant case with air inlet pipe one end,The utility model the moisture in air can be dried,Reduce influence of the humidity to experimental data,Heat climbing speed after improving bottle body adiabatic expansion,Improve experiment progress.
Description
Technical field
The utility model relates to air specific heat ratio technical field, specially a kind of adiabatic expansion method measures air specific heat capacity
The experimental provision of ratio.
Background technique
The specific heat capacity of air does not determine value, even when temperature determines, usually using specific heat at constant pressure perhaps constant volume ratio
Thermal capacitance is related (being believed that when the temperature difference is less big of substantially equal) to reflect the size of air specific heat capacity, both of which and temperature.One
Determine the substance of quality, when the temperature rises, the ratio between quality and raised temperature product of the heat and the substance that are absorbed, referred to as
The specific heat capacity (specific heat) of this substance, is indicated with symbol c.Unit in its International System of Units is Joules per Kg Kelvin [J/
Or every degree Celsius of Joules per Kg [J/ (kg DEG C)] (kgK)].J refers to that joule, K refer to thermodynamic scale, even 1 kilogram
Substance temperature rise (or decline) 1 Kelvin needed for energy.
In the measuring of air specific heat ratio, common measurement method includes vibratory drilling method, sound velocity method and adiabatic expansion
The measurement methods such as method, when adiabatic expansion method measures, due to being influenced by air humidity, so that the precision of experimental data is lower,
After adiabatic expansion, bottle body from the extraneous mode inefficiency for absorbing heat, causes experiment progress slow naturally.
Utility model content
The purpose of this utility model is to provide a kind of experimental provisions of adiabatic expansion method measurement air specific heat ratio, can be with
Moisture in air is dried, influence of the humidity to experimental data, the heat after improving bottle body adiabatic expansion are reduced
Climbing speed is measured, improves experiment progress, to solve the problems mentioned in the above background technology.
To achieve the above object, the utility model provides the following technical solutions：A kind of adiabatic expansion method measurement air specific heat
Hold the experimental provision of ratio, including bottle body and compressed air cylinder, the compressed air cylinder are mounted on bottle body side, the bottle side wall
Including inner sidewall and lateral wall, resistive heater, the bottle body top are covered in the cavity between the inner sidewall and lateral wall
Portion is equipped with bottleneck, and the bottleneck is equipped with plunger, on the plunger through have escape pipe, thermocouple thermometer, air gauge and into
Tracheae is mounted on air valve, the exhaust pipe connection of the compressed air tank top connection on the escape pipe and air inlet pipe
There is desiccant case, is connected at the top of the desiccant case with air inlet pipe one end.
Preferably, the plunger is rubber stopper, and the matching relationship of the plunger and bottleneck is interference fit.
Preferably, the desiccant case is fixed on by connecting plate and through the positioning bolt above and below connecting plate
On bottle side wall.
Preferably, the desiccant case includes box body and box cover, and the box cover is arranged on the outside of box body.
Preferably, the box cover and box body installation site are equipped with the first gasket, the box body respectively with air inlet pipe and row
Tracheae is equipped with the second gasket through position.
Preferably, compressed air cylinder surface side is equipped with nameplate.
Compared with prior art, the utility model has the beneficial effects that：
1, the utility model is filled out in desiccant case by installing desiccant case between air inlet pipe and exhaust pipe
Desiccant is filled, the moisture in air can be dried, influence of the humidity to experimental data is reduced；
2, by being covered with resistive heater in the cavity between inner sidewall and lateral wall, resistive heater can be passed through
Heating Experiment is carried out to air, while utilizing thermocouple thermometer real-time monitoring, on the heat after improving bottle body adiabatic expansion
Raising speed rate improves experiment progress.
Detailed description of the invention
Fig. 1 is the schematic diagram of internal structure of the utility model；
Fig. 2 is the external structure schematic diagram of the utility model；
Fig. 3 is the desiccant case partial internal structure schematic diagram of the utility model.
In figure：1 bottle body, 101 inner sidewalls, 102 lateral walls, 2 resistive heaters, 3 bottlenecks, 4 plungers, 5 escape pipes, 6 thermoelectricity
Even thermometer, 7 air gauges, 8 air inlet pipe, 9 air valves, 10 compressed air cylinders, 11 exhaust pipes, 12 desiccant cases, 121 boxes
Body, 122 box covers, 123 first gaskets, 124 second gaskets, 13 connecting plates, 14 positioning bolts, 15 nameplates.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Fig. 1-3 is please referred to, the utility model provides a kind of technical solution：A kind of adiabatic expansion method measurement air specific heat ratio
Experimental provision, including bottle body 1 and compressed air cylinder 10, the compressed air cylinder 10 be mounted on 1 side of bottle body, the bottle body 1
Side wall includes inner sidewall 101 and lateral wall 102, and heating electricity is covered in the cavity between the inner sidewall 101 and lateral wall 102
Silk 2 is hindered, resistive heater 2 is for heating air in bottle body 1；Bottleneck 3 is equipped at the top of the bottle body 1, on the bottleneck 3
Equipped with plunger 4, running through on the plunger 4 has escape pipe 5, thermocouple thermometer 6, air gauge 7 and air inlet pipe 8, the escape pipe 5
Be mounted on air valve 9 in air inlet pipe 8, air valve 9 controls the opening and closing of escape pipe 5 and air inlet pipe 8；The compressed air
The exhaust pipe 11 connected at the top of tank 10 is communicated with desiccant case 12, desiccant-filled in desiccant case 12；It is described dry
12 top of drying prescription case is connected with 8 one end of air inlet pipe.
Specifically, the plunger 4 is rubber stopper, the matching relationship of the plunger 4 and bottleneck 3 is interference fit；4 He of plunger
The matching relationship of bottleneck 3 is interference fit, guarantees 3 position seals of bottleneck.
Specifically, the desiccant case 12 passes through connecting plate 13 and the positioning bolt through about 13 connecting plate
14 are fixed on 1 side wall of bottle body；By using 14 fixed form of connecting plate 13 and positioning bolt, so that desiccant case 12 is pacified
Dress is convenient.
Specifically, the desiccant case 12 includes box body 121 and box cover 122, the box cover 122 is arranged in box body
121 outsides, the box cover 122 and 121 installation site of box body are equipped with the first gasket 123, and the first gasket 123 of setting guarantees box
The leakproofness of 121 installation site of lid 122 and box body；The box body 121 is equipped with air inlet pipe 8 and exhaust pipe 11 through position respectively
Second gasket 124, box body 121 are equipped with the second gasket 124 through position with air inlet pipe 8 and exhaust pipe 11 respectively, guarantee pipe
The installation leakproofness in road and box body 121.
Specifically, the 10 surface side of compressed air cylinder is equipped with nameplate 15；It is empty for recording compressed that nameplate 15 is set
The data information of gas tank 10.
Working principle：In use, opening air valve 9 in air inlet pipe 8 towards air is passed through in bottle body 1, pass through air gauge 7
The air pressure inside bottle body 1 is monitored, the air valve 9 in air inlet pipe 8 is closed when reaching measured value, records 6 He of thermocouple thermometer
Data on air gauge 7 in bottle body 1 after stable gas pressure, are opened escape pipe 5 and are vented, carry out the experiment of gas adiabatic expansion, bottle body 1
Air pressure drop records air pressure and temperature data, passes through 1 side wall of bottle body as low as the air valve 9 closed on escape pipe 5 when atmospheric pressure
The intracorporal air heating of 2 pairs of progress bottles of resistive heater, when thermocouple thermometer 6 is increased to setting value, resistive heater 2 stops
It only heats, record data carry out experimental judgment.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (6)
1. a kind of experimental provision of adiabatic expansion method measurement air specific heat ratio, including bottle body (1) and compressed air cylinder (10),
It is characterized in that：The compressed air cylinder (10) is mounted on bottle body (1) side, bottle body (1) side wall include inner sidewall (101) and
Lateral wall (102) is covered with resistive heater (2) in the cavity between the inner sidewall (101) and lateral wall (102), described
Bottleneck (3) are equipped at the top of bottle body (1), the bottleneck (3) is equipped with plunger (4), on the plunger (4) through have escape pipe (5),
Thermocouple thermometer (6), air gauge (7) and air inlet pipe (8) are mounted on disengaging gas in the escape pipe (5) and air inlet pipe (8)
Valve (9), the exhaust pipe (11) that compressed air cylinder (10) top connects are communicated with desiccant case (12), the desiccant
It is connected at the top of case (12) with air inlet pipe (8) one end.
2. a kind of experimental provision of adiabatic expansion method measurement air specific heat ratio according to claim 1, it is characterised in that：
The plunger (4) is rubber stopper, and the matching relationship of the plunger (4) and bottleneck (3) is to be interference fitted.
3. a kind of experimental provision of adiabatic expansion method measurement air specific heat ratio according to claim 1, it is characterised in that：
The desiccant case (12) is fixed by connecting plate (13) and through the positioning bolt (14) of connecting plate (13) up and down
On bottle body (1) side wall.
4. a kind of experimental provision of adiabatic expansion method measurement air specific heat ratio according to claim 1, it is characterised in that：
The desiccant case (12) includes box body (121) and box cover (122), box cover (122) setting box body (121) outside
Side.
5. a kind of experimental provision of adiabatic expansion method measurement air specific heat ratio according to claim 4, it is characterised in that：
The box cover (122) and box body (121) installation site are equipped with the first gasket (123), the box body (121) respectively with air inlet pipe
(8) run through position with exhaust pipe (11) and be equipped with the second gasket (124).
6. a kind of experimental provision of adiabatic expansion method measurement air specific heat ratio according to claim 1, it is characterised in that：
Compressed air cylinder (10) the surface side is equipped with nameplate (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820731543.4U CN208140619U (en) | 2018-05-17 | 2018-05-17 | A kind of experimental provision of adiabatic expansion method measurement air specific heat ratio |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820731543.4U CN208140619U (en) | 2018-05-17 | 2018-05-17 | A kind of experimental provision of adiabatic expansion method measurement air specific heat ratio |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208140619U true CN208140619U (en) | 2018-11-23 |
Family
ID=64313905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820731543.4U Expired - Fee Related CN208140619U (en) | 2018-05-17 | 2018-05-17 | A kind of experimental provision of adiabatic expansion method measurement air specific heat ratio |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208140619U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115100929A (en) * | 2022-07-07 | 2022-09-23 | 淮阴工学院 | Air inflation teaching demonstration equipment of physical experiment |
-
2018
- 2018-05-17 CN CN201820731543.4U patent/CN208140619U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115100929A (en) * | 2022-07-07 | 2022-09-23 | 淮阴工学院 | Air inflation teaching demonstration equipment of physical experiment |
| CN115100929B (en) * | 2022-07-07 | 2023-10-27 | 淮阴工学院 | Air expansion teaching demonstration equipment for physical experiment |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181123 Termination date: 20210517 |