CN206132495U - Superconducting material power under extremely low alternating temperature environment thermal coupling loading system - Google Patents
Superconducting material power under extremely low alternating temperature environment thermal coupling loading system Download PDFInfo
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- CN206132495U CN206132495U CN201620766584.8U CN201620766584U CN206132495U CN 206132495 U CN206132495 U CN 206132495U CN 201620766584 U CN201620766584 U CN 201620766584U CN 206132495 U CN206132495 U CN 206132495U
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Abstract
Superconducting material power under extremely low alternating temperature environment thermal coupling loading system, including testing machine, refrigerator, heating unit and temperature control unit, wherein the testing machine is electronic universal testing machine, and electronic universal testing machine adopts the low -temperature dewar of dual vacuum molding formula, inside vacuum duct assembly and the vacuum pump connection of passing through of low -temperature dewar, the observation window has still been opened to the low -temperature dewar front portion, and the refrigerator is installed multistage cold head mode refrigeration is adopted at the low -temperature dewar back, and the heating unit includes heater, temperature controller and temperature sensor, and temperature control unit includes intelligent PID control unit, central arithmetic element, man -machine interface HMI, the utility model discloses can be used for superconducting material's under the extremely low or alternating temperature environment of test capability test, have that the temperature range is big, temperature error is little, experimental precision is accurate, stable height and easy operation's an advantage.
Description
Technical field
This utility model is related to superconductor power-thermal coupling loading system, under being specifically related to a kind of extremely low varying temperature environment
Superconductor power-thermal coupling loading system.
Background technology
Superconducting phenomenon as 20th century one of greatest discovery, with boundless application prospect.Based on step this
Receive the advantageous characteristics such as effect, zero resistance and show tempting application potential in high newly built construction and technical field.Superconductor（It is high
Temperature, low temperature）It is namely based on what these advantageous characteristics grew up, nowadays, superconductor has widely been applied to superconducting magnetic
The manufacture field of body, and superconducting magnet is having in numerous areas such as large-scale science apparatus, armarium, the energy, national defense and military
Very important application prospect.
Along with the fast development of superconductor technology, modern superconducting magnet magnetic field maximum intensity is special by the 0.5 of early stage
Si La increases to dozens of tesla, but to be to continue with improving the intensity in magnetic field to meet the needs of the national economic development, its magnetic
Lorentz force between body will be improved greatly, to the mechanical property requirements of superconductor also more and more higher.Therefore, it is super from exploring
The angle for leading material mechanical performance is set out, be disclosed in it is extremely complicated under the conditions of (low temperature, strong-electromagnetic field) superconductor mechanical property
Energy rule, improves an urgent demand that superconducting magnet reasons for its use magnetic field is current engineering circles and academia.
Superconducting magnet (material) can not reach most of inducement of its design requirement under low temperature or varying temperature environment and derive from
The structural instability related to its mechanical property, big stress, large deformation, mechanical damage and destruction etc..Therefore, for low temperature or change
Under warm environment, the mechanical property of superconductor surveys quantifier elimination and seems extremely important and challenging.
Utility model content
The purpose of this utility model is to overcome above-mentioned deficiency, there is provided superconductor Li-heat under a kind of extremely low varying temperature environment
Coupling loading system, to realize under the environment field of low temperature or alternating temperature to the test of superconductor power-thermal coupling energy, while protecting
Card certainty of measurement is accurate, the advantage that stability is high and test period is short.
What the purpose of this utility model was realized in：Superconductor power-thermal coupling loading system under more extremely low varying temperature environment
System, including testing machine, refrigeration machine, heating unit and temperature control unit, the testing machine is electronic universal tester, the electricity
Sub- universal testing machine is cooled cryostat, and the cooled cryostat adopts double manifold vacuum pattern, the cooled cryostat inner space to be height
Vacuum chamber, the cooled cryostat shell adopts vacuum heat-insulation pattern, cooled cryostat inside by vacuum pipe component with it is true
Empty pump connection, the cooled cryostat front portion is provided with observation window, and the refrigeration machine is arranged on the cooled cryostat back, the refrigeration
The multistage cold head mode of employing of machine, 2 cold heads are vertical to be placed in inside the cooled cryostat, and the cold head is by contact
Heat exchange pattern carries out sub-cooled, and the heating unit includes heater, temperature controller and temperature sensor, the temperature control
Unit includes intelligent PID regulation and control unit, central arithmetic unit, Human machine interface.
Further, also including movable supporting frame, the cooled cryostat is arranged on the movable supporting frame, the vacuum pump
Inside the movable supporting frame.
The electronic universal tester adopts gate-type prestressed structure.
The minimum chilling temperature 4.0K of the Dewar.
The observation window includes upper and lower two observation windows.
The temperature controller realizes alternating temperature by adjusting the output size of the heater, extent of alternating temperature be 300K-
4.2K。
The utility model has the advantage of：
After using the above-mentioned cryocooled mode structure without liquid helium, can be to superconductor in alternating temperature or low temperature environment
Under carry out the measurement of power-thermal coupling, the basic deformation pattern to portray many superconductors off field provides reliable experiment condition, while
Realize that extent of alternating temperature is wide：300K -4.2K, while carrying out increasing transformation and mechanics sensor to traditional electronic universal tester
Transformation, it is, in order to ensure the stretching travel of silk material, and to the transformation of mechanics sensor, to have allowed for superconducting filament to increase transformation
The multi-scale effect of material, by with different mechanics sensors are changed, can accurately measure the superconduction silk material under different scale
Mechanics effect so that the system has that temperature range is big, temperature error is little, test accuracy is accurate, stability is high and operation
Simple advantage.
Description of the drawings
Accompanying drawing 1 is the left diagram of system structure of the present utility model.
Specific embodiment
Below in conjunction with the accompanying drawings the utility model will be further described.
Superconductor power-thermal coupling loading system under extremely low varying temperature environment, including testing machine, refrigeration machine, the and of heating unit 1
Temperature control unit 8, testing machine is electronic universal tester 2, and this universal testing machine 2 adopts gate-type prestressed structure, adopts and adds
Wide, heightening type design, load mode is MPU Controlled All Digital Servo System driving, for the mechanical property of test sample, correlated performance ginseng
Number is：
Test force
Maximum test force：200KN
Effective dynamometry scope：0.4%～100%FS
Resolving power：1/300000
Relative error of indicating value：±0.5%
Load sensor：Covering sensor 200 KN, 50KN, 10KN, 0.5KN, 0.1KN, 0.05KN in high precision more；
Test speed
Range of accommodation：0.005～500mm/min（Stepless speed regulation）
Even test force speed, even rate of deformation span of control：0.01%～10%FS/S
Even test force speed, even rate of deformation control error：±0.5%
Permanent test force, permanent Deformation control scope：0.5%～100%FS
Control error：Less than during 10%FS be ± 1%, more than during 10%FS be ± 0.1%
Relative error of indicating value：±0.5%；
Displacement（Moving beam）
Measurement range：0～999mm
Resolving power：0.001mm
Relative error of indicating value：±0.5%
Deformation
Output area：0-5mm
Effective range：0.2%～100%FS
Gauge length：50mm
Resolving power：1/300000
Relative error of indicating value：±0.5%
Loading procedure
Driven using servosystem, circular arc synchronous pulley slows down, gapless driving is realized in ball-screw auxiliary driving, obtained
Test force and the high-accuracy control of deformation velocity.
Universal testing machine 2 includes vacuum tank 3 and movable supporting frame 4, and vacuum tank 3 is installed on gate-type prestressed structure bottom,
Above movable supporting frame 4, vacuum tank 3 is the cooled cryostat of pair of lamina vacuum, and minimum chilling temperature 4.0K is inside cooled cryostat
High vacuum chamber, shell is vacuum heat-insulation pattern, and cooled cryostat inner chamber effective dimensions is 500mm × L600 mm, in its inner chamber
Test specimen is placed in centre, and cooled cryostat front portion is provided with two observation windows 5, cooled cryostat inside by vacuum pipe component 6 with it is true
Empty pump 7 connects, and vacuum pump 7 is arranged on the inside of movable supporting frame 4.
Refrigeration machine is arranged on Dewar back, and for refrigeration and alternating temperature in vacuum tank 2, refrigeration machine adopts multistage cold head mode,
Guarantee cooling effectiveness：One-level cold head cooling power 50W, amount of cooling water 55K, two grades of cold head cooling powers 1.5W, amount of cooling water 4.2K, 2
Zhi Lengtou is vertical to be placed in inside Dewar.
Heating unit 1 includes heater, temperature controller and temperature sensor, the output that temperature controller passes through the regulation heater
Watt level realizes alternating temperature, and extent of alternating temperature is 300K -4.2K, and temperature sensor includes high accuracy 4.2K of multiple multiple spots arrangement
Low form zone temperature sensor.
Temperature control unit 8 includes intelligent PID regulation and control unit, central arithmetic unit, Human machine interface.
During test：Start refrigeration machine to cooling system, when the low temperature of test is reached, can study under the low temperature environment of pole
The power of superconductor sample-thermal coupling energy, when startup heating unit is heated to system, can study and surpass under varying temperature environment
Lead the power-thermal coupling energy of material sample.
Finally it should be noted that：Obviously, above-described embodiment is only intended to clearly illustrate the application example, and and
The non-restriction to embodiment.For those of ordinary skill in the field, can also do on the basis of the above description
Go out the change or variation of other multi-forms.There is no need to be exhaustive to all of embodiment.And thus drawn
Among protection domain of the obvious change or variation that Shen goes out still in the application type.
Claims (6)
1. superconductor power-thermal coupling loading system under extremely low varying temperature environment, it is characterised in that including testing machine, refrigeration machine, plus
Hot cell and temperature control unit, the refrigeration machine is arranged on the testing machine back side, and the temperature control unit connects respectively described
Heating unit and the refrigeration machine, the temperature control unit and the heating unit are arranged in the testing machine, the institute
It is electronic universal tester to state testing machine, and the electronic universal tester is cooled cryostat, and the cooled cryostat is using dual true
Empty pattern, the cooled cryostat inner space is high vacuum chamber, and the cooled cryostat shell adopts vacuum heat-insulation pattern, described low
Warm Dewar inside is connected by vacuum pipe component with vacuum pump, and the cooled cryostat front portion is provided with observation window, the refrigeration machine
The multistage cold head mode of employing, 2 cold heads are vertical to be placed in inside the cooled cryostat, the cold head by contact heat
Conduction pattern carries out sub-cooled, and the heating unit includes heater, temperature controller and temperature sensor, the temperature control list
Unit includes intelligent PID regulation and control unit, central arithmetic unit, Human machine interface.
2. superconductor power-thermal coupling loading system under extremely low varying temperature environment according to claim 1, it is characterised in that
Also include movable supporting frame, the cooled cryostat is arranged on the movable supporting frame, and the vacuum pump is arranged on described removable
Dynamic internal stent.
3. superconductor power-thermal coupling loading system under extremely low varying temperature environment according to claim 1, it is characterised in that
The electronic universal tester adopts gate-type prestressed structure.
4. superconductor power-thermal coupling loading system under extremely low varying temperature environment according to claim 1, it is characterised in that
The minimum chilling temperature 4.0K of the Dewar.
5. superconductor power-thermal coupling loading system under extremely low varying temperature environment according to claim 1, it is characterised in that
The observation window includes upper and lower two observation windows.
6. superconductor power-thermal coupling loading system under extremely low varying temperature environment according to claim 1, it is characterised in that
The temperature controller realizes alternating temperature by adjusting the output size of the heater, and extent of alternating temperature is 300K -4.2K.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620766584.8U CN206132495U (en) | 2016-07-20 | 2016-07-20 | Superconducting material power under extremely low alternating temperature environment thermal coupling loading system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620766584.8U CN206132495U (en) | 2016-07-20 | 2016-07-20 | Superconducting material power under extremely low alternating temperature environment thermal coupling loading system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106018071A (en) * | 2016-07-20 | 2016-10-12 | 兰州大学 | Force-thermal coupling loading system for superconducting materials under ultra-low varying temperature environment |
| CN109976415A (en) * | 2017-12-27 | 2019-07-05 | 中国科学院长春光学精密机械与物理研究所 | A kind of temperature range control system of infrared optical system |
| CN113253361A (en) * | 2021-04-14 | 2021-08-13 | 哈尔滨工业大学 | Testing device for extreme low-temperature physical properties of lunar soil water ice |
-
2016
- 2016-07-20 CN CN201620766584.8U patent/CN206132495U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106018071A (en) * | 2016-07-20 | 2016-10-12 | 兰州大学 | Force-thermal coupling loading system for superconducting materials under ultra-low varying temperature environment |
| CN109976415A (en) * | 2017-12-27 | 2019-07-05 | 中国科学院长春光学精密机械与物理研究所 | A kind of temperature range control system of infrared optical system |
| CN113253361A (en) * | 2021-04-14 | 2021-08-13 | 哈尔滨工业大学 | Testing device for extreme low-temperature physical properties of lunar soil water ice |
| CN113253361B (en) * | 2021-04-14 | 2024-04-26 | 哈尔滨工业大学 | Lunar soil water ice extreme low temperature physical property testing device |
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