CN106504624A - The experimental provision that negative pressure liquid boiling is studied with syringe - Google Patents
The experimental provision that negative pressure liquid boiling is studied with syringe Download PDFInfo
- Publication number
- CN106504624A CN106504624A CN201611259292.6A CN201611259292A CN106504624A CN 106504624 A CN106504624 A CN 106504624A CN 201611259292 A CN201611259292 A CN 201611259292A CN 106504624 A CN106504624 A CN 106504624A
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- syringe
- injection needle
- negative pressure
- tube
- cock
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- 239000007788 liquid Substances 0.000 title claims abstract description 41
- 238000009835 boiling Methods 0.000 title claims abstract description 28
- 238000002347 injection Methods 0.000 claims abstract description 35
- 239000007924 injection Substances 0.000 claims abstract description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000002699 waste material Substances 0.000 claims abstract description 14
- 239000011521 glass Substances 0.000 claims description 12
- 239000002351 wastewater Substances 0.000 claims description 10
- 238000003780 insertion Methods 0.000 claims description 7
- 230000037431 insertion Effects 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 6
- 239000004800 polyvinyl chloride Substances 0.000 claims description 6
- 238000004080 punching Methods 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 238000009530 blood pressure measurement Methods 0.000 claims description 5
- 210000002445 nipple Anatomy 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 239000000243 solution Substances 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000009529 body temperature measurement Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000003670 easy-to-clean Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/06—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics
- G09B23/16—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for science of heat
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- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Mathematical Analysis (AREA)
- Mathematical Optimization (AREA)
- Business, Economics & Management (AREA)
- Mathematical Physics (AREA)
- Algebra (AREA)
- Computational Mathematics (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- Pure & Applied Mathematics (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
The invention discloses a kind of experimental provision for studying negative pressure liquid boiling with syringe, including piston core, screw thread mouth injection needle tube, cock triple valve, thermos bottle, temperature sensing device, pressure measurer, waste liquid pool.Core bar is inserted injection needle tube, swivel tee valve makes syringe connect with thermos bottle, extract hot water and enter syringe, swivel tee valve, makes syringe airtight space again, pull back core bar, occurs negative pressure state in syringe, the hot water less than 100 DEG C seethes with excitement under negative pressure, temperature sensing device can show the temperature of now water, pressure measurer can show pressure in now syringe, swivel tee valve again after experimental demonstration, is made syringe be connected with waste liquid pool, waste liquid is pushed into waste liquid pool.This experimental provision low cost, small volume are easy to carry, simple to operate, and phenomenon is substantially easy to observe, and can be widely used for science and education experimental demonstration, and can be used for the Quantitative experimental study of boiling point of liquid and negative pressure relation.
Description
Technical field
The invention belongs to negative pressure boiling field, and in particular to a kind of syringe studies the experiment dress of negative pressure liquid boiling
Put.
Background technology
Boiling is the simultaneous violent vaporization phenomenon of liquid internal and surface at a certain temperature.When liquid boiling
Temperature is referred to as boiling point.General strength of fluid is higher, and boiling point is higher；The boiling point of different liquids is also different；So-called boiling point is
Temperature value when different liquids seethes with excitement.Boiling point changes with ambient pressure and changes, and pressure is low, and boiling point is also low.Negative pressure is
Gas pressure state less than normal pressure (one atmospheric pressure of namely what is often called).By taking common liquid water as an example, there is negative pressure state
Space, its boiling point will be less than 100 DEG C, can observe the phenomenon that the hot water not seethed with excitement is seethed with excitement under negative pressure again, i.e.,
Negative pressure liquid boiling phenomenon.
The experimental study for boiling point of liquid being affected about atmospheric pressure at present, generally require extremely complex instrument and equipment with
Survey tool, instrument involve great expense, and operation difficulty is high, are not suitable for amateur researcher's operation.And there is experimental phenomena
Not directly perceived, the bulky problem for being not readily used for science and education experimental demonstration；Meanwhile, experimental provision often exists and is difficult to install, and installs
After be difficult to split, liquid containing container is difficult to clean, and is unfavorable for changing Study of Liquid and quantitative experiment repeatedly.
Content of the invention
In view of this, it is an object of the invention to provide a kind of experimental provision of negative pressure liquid boiling so as to extensively can use
In various Popular Science Education experimental demonstrations and the experimental study of colleges and universities.Pulled by ingenious utilization syringe piston core bar, metering needle
Boiling point reduces phenomenon under negative pressure for cylinder internal pressure, demonstration Study of Liquid pressure.Have simple structure easily operated, experiment dress
Put compact be easy to carry about with one, the intuitively interesting advantage of experimental phenomena.
For reaching above-mentioned purpose, the present invention provides following technical scheme：A kind of syringe studies negative pressure liquid boiling
Experimental provision, including piston core bar 1, screw thread mouth injection needle tube 2, cock triple valve 3, thermos bottle 4, temperature sensing device 5, pressure
Measurement apparatus 6 and waste liquid pool 7；In the insertion screw thread mouth of piston core bar 1 injection needle tube 2, injection needle tube passes through cock triple valve 3
Connecting with thermos bottle 4 and injection needle tube being entered to extract hot water, 3 other end of cock triple valve is connected with waste liquid pool 7, and TEMP is filled
Put 5 to be correspondingly arranged on piston core bar 1 and screw thread mouth injection needle tube 2, in order to measure water in injection needle tube with pressure measurer 6
Temperature and pressure.
Further, described cock triple valve 3 includes that cock 3-6, the injector screw being correspondingly arranged on cock 3-6 connect
Mouth cap 3-1, hot water interface tube cap 3-2 and waste water interface tube cap 3-4, the hot water interface tube cap 3-2 and waste water interface tube cap 3-4
One end be correspondingly connected with hot water conduit 3-3 and waste water conduit 3-5.
Further, described temperature sensing device 5 includes temperature sensor 5-1, and the temperature sensor 5-1 is by connection
Line 5-3 is connected with integrated temperature measurement circuit plate 5-4, charactron temperature display 5-5 and switch key 5-6, outside the connecting line 5-3
It is provided with circuit steel tube dirt-proof boot 5-2；The temperature sensor 5-1 is that DS18B20 digital temperature sensors or thermistor temp are passed
Sensor.
Further, described pressure measurer 6 includes wireway 6-1, U-shaped glass tube 6-2 and pressure scale disk 6-4；
Described wireway 6-1 one end is connected with injection needle tube 2, and the other end is connected with U-shaped glass tube 6-2, in the U-shaped glass tube 6-2
Filled with band color indicator solution 6-3, the pressure scale disk 6-4 is arranged on U-shaped glass tube 6-2.
Further, described piston core bar 1 is mainly made up of piston handle 1-1, piston shaft 1-2 and rubber piston 1-3, piston
The middle part punching of handle and piston shaft is inserted for the circuit steel tube dirt-proof boot 5-2 of temperature sensing device 5, and in the middle part of rubber piston, punching is for temperature
The temperature sensor 5-1 insertions of degree sensing device 5, and seal after inserting seamless.
Further, 2 material of the injection needle tube is transparent polyvinyl chloride or PVC, and the nipple of injection needle tube is screw thread mouth
Nipple 2-1, and sealing coordinates after screwing with injector screw interface cap 3-1, interface of pressure measurement 2- is inserted in the perforate of syringe front end
2, can be tightly connected with the wireway 6-1 of pressure measurer 6.
The beneficial effects of the present invention is：Syringe is used as liquid containing container, easy installation and removal, it is easy to clean, and matches somebody with somebody
Close the pipeline control of cock triple valve, in that context it may be convenient to change after experimental liquid and the waste liquid excluded after experiment；Coordinate loading
Temperature sensing device and pressure measurer, can read the boiling point values of pressure values in needle tubing and liquid, in real time so as to enter
Row Quantitative experimental study.The experimental provision has simple structure easily operated, and experimental provision is compact to be easy to carry about with one, and experimental phenomena is straight
Interesting advantage is seen, the experimental study of various Popular Science Education experimental demonstrations and colleges and universities is can be widely used for.
Description of the drawings
In order that the purpose of the present invention, technical scheme and beneficial effect are clearer, the present invention provides drawings described below and carries out
Explanation：
Fig. 1 is the overall structure composition schematic diagram of the present invention；
Structural representations of the Fig. 2 for inventive piston core bar；
Fig. 3 is the structural representation of cock triple valve of the present invention.
Specific embodiment
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described in detail.
As illustrated, the experimental provision of negative pressure liquid boiling in the present invention, is studied with syringe, including piston core bar 1, spiral shell
Line mouth injection needle tube 2, cock triple valve 3, thermos bottle 4, temperature sensing device 5, pressure measurer 6 and waste liquid pool 7；The work
In the plug insertion screw thread mouth of core bar 1 injection needle tube 2, injection needle tube is connected with thermos bottle 4 by cock triple valve 3 and is entered with extracting hot water
Enter injection needle tube, 3 other end of cock triple valve is connected with waste liquid pool 7, temperature sensing device 5 is corresponding with pressure measurer 6 to be set
Put on piston core bar 1 with screw thread mouth injection needle tube 2, in order to measure water temperature and pressure in injection needle tube.
Specifically, piston core bar 1 is inserted screw thread mouth injection needle tube 2,3 thread cap end of cock triple valve is connected with injection needle tube
Connect, swivel tee valve cock makes injection needle tube connect with thermos bottle 4, extract hot water and enter injection needle tube, again swivel tee valve
Cock, makes injection needle tube airtight space, pulls back piston core bar, occurs negative pressure state in injection needle tube, the heat less than 100 DEG C
Water seethes with excitement under negative pressure, and temperature sensing device 5 can show that the temperature of now water, pressure measurer 6 can show now syringe
Interior pressure, swivel tee valve cock again after experimental demonstration, is made syringe be connected with waste liquid pool 7, waste liquid is pushed into waste liquid pool.
Cock triple valve 3 in the present embodiment includes that cock 3-6, the injector screw being correspondingly arranged on cock 3-6 connect
Mouth cap 3-1, hot water interface tube cap 3-2 and waste water interface tube cap 3-4, the hot water interface tube cap 3-2 and waste water interface tube cap 3-4
One end be correspondingly connected with hot water conduit 3-3 and waste water conduit 3-5.Rotation cock, can realize that only syringe is led with hot water respectively
Pipe is connected, syringe sealing, only syringe and waste water conduit connect Three models.
Temperature sensing device 5 in the present embodiment includes temperature sensor 5-1, and the temperature sensor 5-1 is by connection
Line 5-3 is connected with integrated temperature measurement circuit plate 5-4, charactron temperature display 5-5 and switch key 5-6, outside the connecting line 5-3
It is provided with circuit steel tube dirt-proof boot 5-2；The temperature sensor 5-1 is DS18B20 digital temperature sensors, certainly, temperature sensor
5-1 may also be employed thermistor temperature sensor.
Pressure measurer 6 in the present embodiment includes wireway 6-1, U-shaped glass tube 6-2 and pressure scale disk 6-4；Institute
State wireway 6-1 one end to be connected with injection needle tube 2, the other end is connected with U-shaped glass tube 6-2, fill out in the U-shaped glass tube 6-2
Filled with band color indicator solution 6-3, the pressure scale disk 6-4 is arranged on U-shaped glass tube 6-2.
Piston core bar 1 in the present embodiment is mainly made up of piston handle 1-1, piston shaft 1-2 and rubber piston 1-3, piston
The middle part punching of handle and piston shaft is inserted for the circuit steel tube dirt-proof boot 5-2 of temperature sensing device 5, and in the middle part of rubber piston, punching is for temperature
The temperature sensor 5-1 insertions of degree sensing device 5, and seal after inserting seamless.
2 material of injection needle tube in the present embodiment is transparent polyvinyl chloride, and the nipple of injection needle tube is screw thread papilla oralis
2-1, and sealing coordinates after screwing with injector screw interface cap 3-1, interface of pressure measurement 2-2 is inserted in the perforate of syringe front end, can
It is tightly connected with the wireway 6-1 of pressure measurer 6.Certainly, 2 material of injection needle tube may also be employed PVC or other transparent materials
Material.
The experimental provision has that simple structure is compact, material is easy to get, cheap, easily operated, the characteristics of be easy to carry,
Experimental phenomena is intuitively interesting, can be widely used for the experimental study of various Popular Science Education experimental demonstrations and colleges and universities.
Finally illustrate, preferred embodiment above is only unrestricted in order to technical scheme to be described, although logical
Cross above preferred embodiment to be described in detail the present invention, it is to be understood by those skilled in the art that can be
In form and various changes are made to which in details, without departing from claims of the present invention limited range.
Claims (6)
1. a kind of with syringe study negative pressure liquid boiling experimental provision, it is characterised in that：Including piston core bar (1), screw thread
Mouth injection needle tube (2), cock triple valve (3), thermos bottle (4), temperature sensing device (5), pressure measurer (6) and waste liquid pool
(7)；In described piston core bar (1) insertion screw thread mouth injection needle tube (2), injection needle tube is by cock triple valve (3) and thermos bottle
(4) connection enters injection needle tube to extract hot water, and cock triple valve (3) other end is connected with waste liquid pool (7), temperature sensing device
(5) it is correspondingly arranged at pressure measurer (6) on piston core bar (1) and screw thread mouth injection needle tube (2), in order to measure injection needle
Water temperature and pressure in cylinder.
2. according to claim 1 with syringe study negative pressure liquid boiling experimental provision, it is characterised in that：Described
Cock triple valve (3) includes cock (3-6), injector screw interface cap (3-1) being correspondingly arranged in cock (3-6), hot water
Interface tube cap (3-2) and waste water interface tube cap (3-4), hot water interface tube cap (3-2) and the one of waste water interface tube cap (3-4)
End is correspondingly connected with hot water conduit (3-3) and waste water conduit (3-5).
3. according to claim 1 with syringe study negative pressure liquid boiling experimental provision, it is characterised in that：Described
Temperature sensing device (5) includes temperature sensor (5-1), and temperature sensor (5-1) is by connecting line (5-3) and integrated survey
Circuit temperature plate (5-4), charactron temperature display (5-5) and switch key (5-6) are connected, and connecting line (5-3) is externally provided with
Circuit steel tube dirt-proof boot (5-2)；Temperature sensor (5-1) is that DS18B20 digital temperature sensors or thermistor temp are passed
Sensor.
4. according to claim 2 with syringe study negative pressure liquid boiling experimental provision, it is characterised in that：Described
Pressure measurer (6) includes wireway (6-1), U-shaped glass tube (6-2) and pressure scale disk (6-4)；Wireway (the 6-
1) one end is connected with injection needle tube (2), and the other end is connected with U-shaped glass tube (6-2), is filled with U-shaped glass tube (6-2)
Band color indicator solution (6-3), pressure scale disk (6-4) is arranged on U-shaped glass tube (6-2).
5. according to claim 3 with syringe study negative pressure liquid boiling experimental provision, it is characterised in that：Described
Piston core bar (1) is mainly made up of piston handle (1-1), piston shaft (1-2) and rubber piston (1-3), piston handle and piston shaft
Middle part punching is inserted for the circuit steel tube dirt-proof boot (5-2) of temperature sensing device (5), and punching in the middle part of rubber piston is filled for TEMP
Temperature sensor (5-1) insertion of (5) is put, and is sealed after inserting seamless.
6. according to claim 4 with syringe study negative pressure liquid boiling experimental provision, it is characterised in that：The note
It is transparent polyvinyl chloride or PVC to penetrate syringe (2) material, and the nipple of injection needle tube is screw thread papilla oralis (2-1), and and syringe
Sealing after hickey cap (3-1) is screwed coordinates, and syringe front end perforate insertion interface of pressure measurement (2-2) can be with pressure measurement
The wireway (6-1) of device (6) is tightly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611259292.6A CN106504624A (en) | 2016-12-30 | 2016-12-30 | The experimental provision that negative pressure liquid boiling is studied with syringe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611259292.6A CN106504624A (en) | 2016-12-30 | 2016-12-30 | The experimental provision that negative pressure liquid boiling is studied with syringe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106504624A true CN106504624A (en) | 2017-03-15 |
Family
ID=58333533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611259292.6A Pending CN106504624A (en) | 2016-12-30 | 2016-12-30 | The experimental provision that negative pressure liquid boiling is studied with syringe |
Country Status (1)
| Country | Link |
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| CN (1) | CN106504624A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112053612A (en) * | 2020-10-09 | 2020-12-08 | 福建省泉州市第七中学 | Teaching demonstration device |
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| JP2008090243A (en) * | 2006-09-29 | 2008-04-17 | Tokyo Electric Power Co Inc:The | Demonstration apparatus and demonstration method of principle of operation of heat pump |
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| CN204204284U (en) * | 2014-11-11 | 2015-03-11 | 杜秀梅 | A kind of physics teaching in secondary school equipment |
| CN204884327U (en) * | 2015-08-10 | 2015-12-16 | 赵志超 | Multi -functional physical teaching presentation device |
| CN205451610U (en) * | 2015-12-25 | 2016-08-10 | 王金华 | Open brownian motion visualizer |
| CN206363621U (en) * | 2016-12-30 | 2017-07-28 | 重庆三峡医药高等专科学校 | The experimental provision that negative pressure liquid seethes with excitement is studied with syringe |
-
2016
- 2016-12-30 CN CN201611259292.6A patent/CN106504624A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008090243A (en) * | 2006-09-29 | 2008-04-17 | Tokyo Electric Power Co Inc:The | Demonstration apparatus and demonstration method of principle of operation of heat pump |
| CN201163464Y (en) * | 2008-02-29 | 2008-12-10 | 李高建 | Hydromechanics experimental device |
| CN103915022A (en) * | 2013-01-06 | 2014-07-09 | 雷力 | Sinking and floating condition experiment instrument |
| CN203786991U (en) * | 2014-04-01 | 2014-08-20 | 解思瑾 | Oxygen, carbon dioxide and hydrogen preparation and property verification device |
| CN204204284U (en) * | 2014-11-11 | 2015-03-11 | 杜秀梅 | A kind of physics teaching in secondary school equipment |
| CN204884327U (en) * | 2015-08-10 | 2015-12-16 | 赵志超 | Multi -functional physical teaching presentation device |
| CN205451610U (en) * | 2015-12-25 | 2016-08-10 | 王金华 | Open brownian motion visualizer |
| CN206363621U (en) * | 2016-12-30 | 2017-07-28 | 重庆三峡医药高等专科学校 | The experimental provision that negative pressure liquid seethes with excitement is studied with syringe |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112053612A (en) * | 2020-10-09 | 2020-12-08 | 福建省泉州市第七中学 | Teaching demonstration device |
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| PB01 | Publication | ||
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Application publication date: 20170315 |