CN206911380U - A kind of high/low temperature isothermal experiments equipment with magnetic agitation - Google Patents
A kind of high/low temperature isothermal experiments equipment with magnetic agitation Download PDFInfo
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- CN206911380U CN206911380U CN201720661710.8U CN201720661710U CN206911380U CN 206911380 U CN206911380 U CN 206911380U CN 201720661710 U CN201720661710 U CN 201720661710U CN 206911380 U CN206911380 U CN 206911380U
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- conducting medium
- outer barrel
- low temperature
- magnetic agitation
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Abstract
The utility model discloses a kind of high/low temperature isothermal experiments equipment with magnetic agitation, mainly include outer barrel, electric hot tray, refrigeration system and stirring system, refrigeration system uses heat-conducting medium circulating cooling, outer barrel is connected with refrigeration system by pipeline, stirring system is magnetic stirring apparatus, including magnetic stir bar, magnetic disk and motor.Electric hot tray is located at the bottom of outer barrel, is close to outer barrel, and magnetic disk is located at the bottom of electric hot tray.Refrigeration system includes heat-conducting medium, heat-conducting medium storage tank, heat-conducting medium pump, circulation pipe and refrigeration unit, outer barrel, heat-conducting medium storage tank, heat-conducting medium pump, refrigeration unit pass sequentially through circulation pipe and are together in series, a closed circulation cooling system is formed, heat-conducting medium is in circulation Bottomhole pressure.Heated at constant temperature experiment can be carried out using the utility model, and can carries out constant temperature cryogenic freezing experiment（As metabisulfite solution produces saltcake）, i.e., with high/low temperature temperature incubation function.
Description
Technical field
The utility model belongs to laboratory apparatus field, more particularly to a kind of high/low temperature isothermal experiments with magnetic agitation are set
It is standby.
Background technology
In the prior art, isothermal experiments device mainly has following several.The first is thermostat water bath, and its electrothermal tube is straight
Connect to be immersed in water and heat.Due to there is no agitating device in experiment container so that it is uniform that heated material has temperature distributing disproportionation
The problems such as heating and cooling hysteresis quality is big.It is for second the thermostat water bath of additional agitator, the device increases on the basis of original
, although solving the problems, such as that temperature distributing disproportionation is even, the problem of heating and cooling hysteresis quality is big still be present in external agitator,
And heating water bath is used, make heated material no more than 100 DEG C, it is real that most inorganic salt solution evaporation can not be carried out
Test, distillation test, Organic Experiment etc..The third is magnetic agitation electric jacket（Or magnetic agitation heating plate）, species device profit
With magnetic field and the principle of whirlpool, stirrer is put into liquid, after base produces magnetic field, drives stirrer to be transported into circumferential cycle
Move so as to reach the purpose of agitated liquid, while coordinate temperature control equipment, can control and tie up according to specific requirement of experiment
Hold sample temperature.The species device employs electric jacket（Or heating plate）, heating object mass-energy is reached higher temperature, but adopt
With the device heat, once rise temperature, temperature is lowered, can only Temperature fall, time-consuming.4th kind is circularly cooling
Thermostat, using heat pump refrigerating, system can only be less than testing under normal temperature.5th kind is circularly cooling heated constant temperature groove, is used
Heat pump refrigerating, and hot pin heating is powered up in groove, do not stirred in experiment container, experimental temperature scope is smaller, using heat pump system
It is cold to involve great expense.
In addition, said apparatus, when experiment container rupture event occurs, the liquid spilt can corrode or damage experiment dress
Put, the electric jacket of higher temperature can be reached particularly with the third（Or heating plate）, the liquid spilt is easy to cause equipment
Short circuit, or corrosion instrument and laboratory bench, can also be damaged when serious to human body.
In the prior art, ZL03219498.6 discloses a kind of rapid temperature rise-reduce thermostatic water bath device for experiment, the dress
Put on the basis of water bath with thermostatic control magnetic agitation, add semiconductor refrigerating element, reach heating object mass-energy and be higher than or low
In the temperature of room temperature, and the material after being heated can be made comparatively fast to realize cooling.But the semiconductor refrigerating element of the device directly connects
Water-bath is touched, because semiconductor refrigerating element temperature is too high（More than 60 DEG C）, cause semiconductor refrigerating element directly to damage so that should
Device can not realize cooling-down effect.
Summary, isothermal experiments device of the prior art deposit the defects of temperature fall time is long after the heating, expend many experiments
Time.Furtherly, existing isothermal experiments device can not carry out cryogenic freezing experiment（As metabisulfite solution produces saltcake）, i.e.,
Without high/low temperature temperature incubation function.Meanwhile using existing isothermal experiments device, when experiment container rupture event occurs, splash
The liquid gone out can corrode or damage experimental provision, and safety coefficient is low.
Utility model content
For problem present in above-mentioned technology, the purpose of this utility model is to provide a kind of with magnetic agitation, tool
There is the experimental facilities of high/low temperature temperature incubation function, the experimental facilities flexibility is strong, safety coefficient is high.
Technical scheme is used by the utility model：A kind of high/low temperature isothermal experiments equipment with magnetic agitation, it is described
Experimental facilities mainly includes outer barrel, electric hot tray, refrigeration system and stirring system, and the refrigeration system is circulated cold using heat-conducting medium
But, the outer barrel is connected with refrigeration system by pipeline, and the stirring system is magnetic stirring apparatus, including magnetic stir bar,
Magnetic disk and motor, the electric hot tray are located at the bottom of outer barrel, are close to outer barrel, and the magnetic disk is located at the bottom of electric hot tray.
As the further improvement of above-mentioned technical proposal, the refrigeration system includes heat-conducting medium, heat-conducting medium storage tank, led
Thermal medium pump, circulation pipe and refrigeration unit；The outer barrel, heat-conducting medium storage tank, heat-conducting medium pump, refrigeration unit are passed sequentially through and followed
Endless tube is together in series, and forms a closed circulation cooling system；The heat-conducting medium is in circulation Bottomhole pressure.
As the further improvement of above-mentioned technical proposal, the heat-conducting medium is a kind of heat conduction silicone oil of high-low temperature resistant.
As the further improvement of above-mentioned technical proposal, the refrigeration unit includes refrigeration power supply, water collar, semiconductor system
Cold, fin and cooling fan.
As the further improvement of above-mentioned technical proposal, the experimental facilities also includes controller；The controller includes
Temperature control, overtemperature protection and power supply.
As the further improvement of above-mentioned technical proposal, the experimental facilities also includes experiment container；The experiment container
Positioned at outer barrel；The magnetic stir bar is placed in experiment container.
As the further improvement of above-mentioned technical proposal, inner cylinder is additionally provided between the outer barrel and experiment container, by outer barrel
Isolate with experiment container；Reed is equipped with the inside and outside wall of the inner cylinder；The reed is close to outer barrel and experiment container respectively, Gu
Determine inner cylinder and experiment container.
As the further improvement of above-mentioned technical proposal, heat-conducting medium is added between the inner cylinder and experiment container, to increase
Add heat-transfer effect.
As the further improvement of above-mentioned technical proposal, the side of the outer barrel is provided with heat-conducting medium entrance and heat conduction is situated between
Matter exports；The heat-conducting medium entrance is located at close to the position of outer barrel bottom；The heat-conducting medium outlet is located at close to outer barrel top
The position in portion.
As the further improvement of above-mentioned technical proposal, the height of the outer barrel bottom is more than heat-conducting medium tank top
Highly；The height of the outer barrel bottom is more than the height of water collar.
As the further improvement of above-mentioned technical proposal, longitudinal center line and the outer barrel bottom of the heat-conducting medium entrance
Distance is 5-10mm.
The beneficial effects of the utility model are：A kind of high/low temperature isothermal experiments equipment with magnetic agitation, is solved existing
The problem of natural cooling heat experiment material time is long in technology.Further illustrate, the isothermal experiments equipment can carry out constant temperature and add
Heat experiment, and can carry out constant temperature cryogenic freezing experiment（As metabisulfite solution produces saltcake）, i.e., with high/low temperature temperature incubation function.Adopt
It is obvious with the circulating semiconductor refrigeration system of mobility, low cost, practicality.And the design of outer barrel largely increases
Heat transfer efficiency.The other experimental facilities also has stirring system, can be sufficiently mixed experiment material, make heat transfer uniform.Together
When, when experiment container rupture event occurs, because with inner cylinder, the liquid spilt will not corrode or damage experimental provision, only
Experiment container need to be changed, cleans inner cylinder, you can re-starts experiment, workable, safety coefficient is high.A whole set of isothermal experiments are set
Standby cost is low, and use range is wide.
Brief description of the drawings
Fig. 1 is the schematic diagram of the utility model isothermal experiments equipment.
In figure：1. outer barrel, 2. inner cylinders, 3. experiment containers, 4. heat-conducting medium entrances, the outlet of 5. heat-conducting mediums, 6. reeds,
7. magnetic stir bar, 8. electric hot trays, 9. magnetic disks, 10. motors, 11. heat-conducting medium storage tanks, 12. heat-conducting medium pumps, 13. circulations
Pipe, 14. water collars, 15. semiconductor chilling plates, 16. fin, 17. cooling fans.
Embodiment
High/low temperature isothermal experiments equipment of the utility model with magnetic agitation is made further specifically below in conjunction with the accompanying drawings
It is bright.
A kind of high/low temperature isothermal experiments equipment with magnetic agitation as shown in Figure 1, including outer barrel 1, experiment container 3, electricity
Hot plate 8, refrigeration system, stirring system and controller.
Electric hot tray 8 is located at the bottom of outer barrel 1, and its caused heat is delivered to the experiment in outer barrel 1 by outer barrel to be held
Device 3, Heating Experiment material.
Stirring system is magnetic stirring apparatus, including magnetic stir bar 7, magnetic disk 9 and motor 10.Magnetic disk 9 is positioned at electricity
The bottom of hot plate 8, magnetic stir bar 7 are placed in experiment container 3.Identical charges repel each other, different in nature phase using magnetic field for magnetic stirring apparatus
The principle of suction, the band magnetic stir bar 7 being placed in experiment container is promoted to carry out circumferential running using magnetic field, so as to reach stirring
Test the purpose of material.
Refrigeration system is using the cooling system of heat-conducting medium circulation, including heat-conducting medium, heat-conducting medium storage tank 11, heat conduction
Medium pump 12, circulation pipe 13 and refrigeration unit.Outer barrel 1, heat-conducting medium storage tank 11, heat-conducting medium pump 12, refrigeration unit are led to successively
Cross circulation pipe to be together in series, form a closed circulation cooling system.Heat-conducting medium is a kind of heat conduction silicone oil of high-low temperature resistant, its
Use temperature range is 50 DEG C -300 DEG C of ﹣.The heat conduction silicone oil flows in circulation pipe 13.Leading in heat-conducting medium storage tank 11
Hot silicone oil after the cooling of refrigeration unit, is transported to outer barrel 1 by the effect of heat-conducting medium pump 12.Thermal conductive silicon in outer barrel 1
Oil with after experiment material-heat-exchanging, being back to heat-conducting medium storage tank 11, constantly circulation again.
Refrigeration unit in refrigeration system includes refrigeration power supply, water collar 14, semiconductor chilling plate 15, fin 16 and dissipated
Air-heater 17.Refrigeration power supply is dc source, is connected with semiconductor chilling plate 15.14 liang of termination circulation pipes of water collar.Semiconductor
The cold end of cooling piece 15 is connected with water collar 14, is cooled down by water collar 14 and the heat exchange of heat conduction silicone oil, its hot junction and fin 16
Connect, in heat transfer to fin 16, taken away by cooling fan 17.As a result of the circulating cooling method of mobility, outside
Heat conduction silicone oil in cylinder 1 is heated up unobvious after heat exchange, so that when flowing to water collar 14, its temperature, which is constantly in, partly to be led
In 15 suitable operating temperature range of body cooling piece, not only protect semiconductor chilling plate 15 from crossing cause thermal damage, and make its tool
There is a higher heat exchange efficiency, refrigeration is notable.
Controller includes temperature control system, overheat protecting system and power control system.Wherein, temperature control system is
The temperature feedback for testing material by temperature sensor monitors ensures to test the standard of temperature of charge to electric hot tray 8 and refrigeration system
True property.Overheat protecting system only in case of emergency triggers, and it contains two kinds of functions, first, the overtemperature protection of electric hot tray 9, works as electricity
When hot plate exceedes safe working temperature, heating is automatically stopped；Second, the overtemperature protection of semiconductor chilling plate 15, when heat-conducting medium stores up
When thermal conductive silicon oil temperature in tank 11 is higher than the safe working temperature of semiconductor chilling plate 15, heat-conducting medium pump 12 is stopped.
Power supply of the power control system as cooling fan 17, heat-conducting medium pump 12, electric hot tray 8 and motor 10, while also control to adjust
The rotating speed of magnetic stir bar 7, the power of heat-conducting medium pump 12 and the temperature for testing material.When the temperature of experiment material is less than setting
During value, open electric hot tray 8 and heat；When the temperature for testing material is higher than setting value, then refrigeration system cooling is run.
In addition, the side of outer barrel 1 is provided with heat-conducting medium entrance 4 and heat-conducting medium outlet 5, it is connected with circulation pipe 13.
When refrigeration system is run, heat conduction silicone oil in heat-conducting medium storage tank 11 is by the effect of heat-conducting medium pump, through refrigeration unit
Cooling after, from heat-conducting medium entrance 4 enter outer barrel 1.Because heat-conducting medium entrance 4 is located at close to the position of the bottom of outer barrel 1, lead
After thermal medium outlet 5 is located at close to the position at the top of outer barrel 1, therefore heat conduction silicone oil is from heat-conducting medium entrance 4 into outer barrel, heat conduction
Silicone oil liquid level can gradually be raised to heat-conducting medium and export 5 positions, be overflowed from heat-conducting medium outlet 5, be back to heat-conducting medium storage
Tank 11, so as to ensure, in refrigeration, to remain a certain amount of heat conduction silicone oil and larger heat exchange area in outer barrel 1, reach
Preferable refrigeration cool-down effect.
When refrigeration system terminates operation, heat-conducting medium pump 12 is stopped, because the height of the bottom of outer barrel 1 is situated between more than heat conduction
The height at the top of matter storage tank 11, while the also greater than height of water collar 14, therefore the heat conduction silicone oil in outer 1 can be made due to gravity
With being flowed out from heat-conducting medium entrance 4, be back to heat-conducting medium storage tank 11.Because heat-conducting medium entrance 4 and the bottom of outer barrel 1 have one
Fixed difference in height（The longitudinal center line of heat-conducting medium entrance 4 and the optimal distance of the bottom of outer barrel 1 are 5-10mm）, the bottom of outer barrel 1
All the time it is detained the heat conduction silicone oil for having sub-fraction, when needing heating to test material in next time, heat energy caused by electric hot tray 8
Preferably experiment container 3 is delivered to from outer barrel 1 by heat conduction silicone oil.The heat conduction silicone oil of delay adds the efficiency of heating surface, saves and adds
The hot time simultaneously takes full advantage of heat.
After testing material heating stopping, experiment material cooling is if desired given, then opens refrigeration system, repeats above-mentioned system
Operation when cooling system is run, heat conduction silicon oil liquid position gradually rises to bring into the high-temperature heat-conductive silicone oil for being trapped in the bottom of outer barrel 1 and led
Thermal medium storage tank 11, mixed with the cold heat conduction silicone oil in heat-conducting medium storage tank 11, neutral temperature.Under normal circumstances, it is mixed
Temperature has been adapted to refrigeration system work, if but produce special circumstances, mixed temperature is higher than the safety of semiconductor chilling plate 15
During operating temperature, overheat protecting system plays a role, and heat-conducting medium pump 12 is stopped, and protects semiconductor chilling plate 15.Wait to lead
When heat conduction silicone oil in thermal medium storage tank 11 cools to the safe working temperature of semiconductor chilling plate 15（The time is much smaller than experiment
The time of material natural cooling）, restarting heat-conducting medium pump 12, refrigeration system, which cools rapidly, tests material.
Further, inner cylinder 2 can also be set between outer barrel 1 and experiment container 3, outer barrel 1 and experiment container 3 are kept apart
Come, in order to avoid inner cylinder 2 because the buoyancy of heat conduction silicone oil floats, reed 6 is equipped with the inside and outside wall of inner cylinder 2, the reed 6
It is close to outer barrel 1 and experiment container 3, fixed inner cylinder 2 and experiment container 3 respectively., can be with using the design of outer barrel 1 plus inner cylinder 2
Prevent that experiment material pollutes heat conduction silicone oil when experiment container 3 from rupturing, while prevent corrosion experiment equipment and laboratory bench, keep away
Exempt to damage laboratory technician, safety coefficient is high.Now, it is only necessary to change experiment container 3, clean inner cylinder 2, you can re-start reality
Test.In order to increase heat-transfer effect, a small amount of heat conduction silicone oil can be added between inner cylinder 2 and experiment container 3.
The high/low temperature isothermal experiments equipment with magnetic agitation, Applicable temperature scope are wide（Preferably 40 DEG C -250 DEG C of ﹣）, rise
Cooling-down effect is obvious, and the operating time is short, can operate with the experiment of all kinds of high/low temperature heat exchange.
Embodiment of above is merely to illustrate the technical solution of the utility model and unrestricted, although with reference to preferable embodiment party
The utility model is described in detail formula, it will be understood by those within the art that, can be to of the present utility model
Technical scheme is modified or equivalent substitution, and without departing from the objective and scope of technical solutions of the utility model, it all should contain
Cover among right of the present utility model.
Claims (11)
- A kind of 1. high/low temperature isothermal experiments equipment with magnetic agitation, it is characterised in that：The experimental facilities mainly includes outer barrel （1）, electric hot tray（8）, refrigeration system and stirring system；The refrigeration system uses heat-conducting medium circulating cooling；The outer barrel（1） It is connected with refrigeration system by pipeline；The stirring system is magnetic stirring apparatus, including magnetic stir bar（7）, magnetic disk（9） And motor（10）；The electric hot tray（8）Positioned at outer barrel（1）Bottom, be close to outer barrel（1）；The magnetic disk（9）Positioned at electric heating Disk（8）Bottom.
- A kind of 2. high/low temperature isothermal experiments equipment with magnetic agitation according to claim 1, it is characterised in that：The system Cooling system includes heat-conducting medium, heat-conducting medium storage tank（11）, heat-conducting medium pump（12）, circulation pipe（13）And refrigeration unit；It is described Outer barrel（1）, heat-conducting medium storage tank（11）, heat-conducting medium pump（12）, refrigeration unit pass sequentially through circulation pipe and be together in series, composition one Individual closed circulation cooling system；The heat-conducting medium is in circulation pipe（13）Interior flowing.
- A kind of 3. high/low temperature isothermal experiments equipment with magnetic agitation according to claim 2, it is characterised in that：It is described to lead Thermal medium is a kind of heat conduction silicone oil of high-low temperature resistant.
- A kind of 4. high/low temperature isothermal experiments equipment with magnetic agitation according to claim 2, it is characterised in that：The system Cold group includes refrigeration power supply, water collar（14）, semiconductor chilling plate（15）, fin（16）And cooling fan（17）.
- A kind of 5. high/low temperature isothermal experiments equipment with magnetic agitation according to claim 2, it is characterised in that：The reality Testing equipment also includes controller；The controller includes temperature control, overtemperature protection and power supply.
- A kind of 6. high/low temperature isothermal experiments equipment with magnetic agitation according to claim 2, it is characterised in that：The reality Testing equipment also includes experiment container（3）；The experiment container（3）Positioned at outer barrel（1）It is internal；The magnetic stir bar（7）It is placed in Experiment container（3）In.
- A kind of 7. high/low temperature isothermal experiments equipment with magnetic agitation according to claim 6, it is characterised in that：It is described outer Cylinder（1）With experiment container（3）Between be additionally provided with inner cylinder（2）, by outer barrel（1）And experiment container（3）Isolation；The inner cylinder（2）'s Reed is equipped with inside and outside wall（6）；The reed（6）It is close to outer barrel respectively（1）And experiment container（3）, fixed inner cylinder（2）And reality Test container（3）.
- A kind of 8. high/low temperature isothermal experiments equipment with magnetic agitation according to claim 7, it is characterised in that：In described Cylinder（2）With experiment container（3）Between add heat-conducting medium, to increase heat-transfer effect.
- 9. a kind of high/low temperature isothermal experiments equipment with magnetic agitation according to claim 1 to 8 any claim, its It is characterised by：The outer barrel（1）Side be provided with heat-conducting medium entrance（4）Exported with heat-conducting medium（5）；The heat-conducting medium Entrance（4）It is located at close to outer barrel（1）The position of bottom；The heat-conducting medium outlet（5）It is located at close to outer barrel（1）The position at top Put.
- A kind of 10. high/low temperature isothermal experiments equipment with magnetic agitation according to claim 9, it is characterised in that：It is described Outer barrel（1）The height of bottom is more than heat-conducting medium storage tank（11）The height at top；The outer barrel（1）The height of bottom is more than water cooling Set（14）Height.
- A kind of 11. high/low temperature isothermal experiments equipment with magnetic agitation according to claim 10, it is characterised in that：It is described Heat-conducting medium entrance（4）Longitudinal center line and outer barrel（1）The distance of bottom is 5-10mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720661710.8U CN206911380U (en) | 2017-06-08 | 2017-06-08 | A kind of high/low temperature isothermal experiments equipment with magnetic agitation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720661710.8U CN206911380U (en) | 2017-06-08 | 2017-06-08 | A kind of high/low temperature isothermal experiments equipment with magnetic agitation |
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| Publication Number | Publication Date |
|---|---|
| CN206911380U true CN206911380U (en) | 2018-01-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720661710.8U Expired - Fee Related CN206911380U (en) | 2017-06-08 | 2017-06-08 | A kind of high/low temperature isothermal experiments equipment with magnetic agitation |
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| Country | Link |
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| CN (1) | CN206911380U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109470546A (en) * | 2018-12-26 | 2019-03-15 | 吴小峰 | A kind of precision low-temp concentrating instrument |
| CN111068561A (en) * | 2019-12-12 | 2020-04-28 | 西安医学院 | Quick constant temperature magnetic stirring device |
| CN111167361A (en) * | 2020-02-27 | 2020-05-19 | 上海小聪科技有限公司 | Heating and refrigerating high-flux magnetic stirrer |
-
2017
- 2017-06-08 CN CN201720661710.8U patent/CN206911380U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109470546A (en) * | 2018-12-26 | 2019-03-15 | 吴小峰 | A kind of precision low-temp concentrating instrument |
| CN111068561A (en) * | 2019-12-12 | 2020-04-28 | 西安医学院 | Quick constant temperature magnetic stirring device |
| CN111167361A (en) * | 2020-02-27 | 2020-05-19 | 上海小聪科技有限公司 | Heating and refrigerating high-flux magnetic stirrer |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180123 Termination date: 20180608 |
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| CF01 | Termination of patent right due to non-payment of annual fee |