CN202229975U - Low-temperature experiment box for mechanical performance test of superconducting material - Google Patents
Low-temperature experiment box for mechanical performance test of superconducting material Download PDFInfo
- Publication number
- CN202229975U CN202229975U CN2011202492356U CN201120249235U CN202229975U CN 202229975 U CN202229975 U CN 202229975U CN 2011202492356 U CN2011202492356 U CN 2011202492356U CN 201120249235 U CN201120249235 U CN 201120249235U CN 202229975 U CN202229975 U CN 202229975U
- Authority
- CN
- China
- Prior art keywords
- temperature
- performance testing
- mechanics performance
- superconductor
- low
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
A low-temperature experiment box for the mechanical performance test of a superconducting material relates to the superconducting material measuring technology, in particular to a temperature control box in the measuring process. The low-temperature experiment box comprises a box body internally adopting a double-layered space structure, wherein, one layer space structure is connected with a liquid nitrogen tank and provided with a wind circulatory system and a heat compensation system, whereas, the other layer space structure is provided with a mechanical performance test component and a temperature sensor electrically connected with the temperature control box; and the double-layered space structure is communicated through the wind circulatory system. The low-temperature experiment box can provide a wider temperature mechanical testing environment, and has the advantages of wide application range, high measuring accuracy, low cost and short testing time.
Description
Technical field
The utility model relates to the superconductor measuring technique, specifically is meant the temperature-controlled cabinet in its measuring process.
Background technology
At present, in the superconductor measuring technique, mechanics performance testing technology under the immersion type low temperature is aimed at the mechanics performance testing technology of superconductor under the particular surroundings.
Mechanics performance testing technology under the above-mentioned immersion type low temperature specifically comprises: test specimen is placed in the Dewar flask that fills cryogenic coolant, the sample that utilization is outside also stretches to sample, with the mechanical property of test sample sample under a certain specified temp.
In the process that realizes the utility model, the inventor finds that there is following defective at least in mechanics performance testing technology under the above-mentioned immersion type low temperature:
⑴ the scope of application is little: can only under the specified temp environment, make an experiment, can not under alternating temperature degree environment, make an experiment;
⑵ measuring accuracy is low: if adopt immersion type, sample need steep in the cooling medium (like liquid nitrogen), and cooling medium can produce certain buoyancy, influences the measuring accuracy of deformation-sensor (strainmeter); In addition, immersion type test rate of temperature fall is the amount an of the unknown, can't accurately control in the sample, therefore, for those materials responsive to rate of temperature fall, influences its measuring accuracy greatly;
⑶ cost is high: need be dipped into test sample in the cooling medium before the immersion type test, after the off-test, cooling medium can not reclaim, and causes the certain economic loss;
⑷ test period is long: when test sample is connected with test fixture, because artificial factor sample can take place unavoidably comes off, if adopt immersion type, when sample comes off, when connecting test again, need quite loaded down with trivial details process, wasted test period greatly.
The utility model content
The technical matters that the utility model will solve is to overcome the defective that equipment is tested in existing superconductor Mechanics Performance Testing, and a kind of low temperature test case is provided, to realize that the scope of application is big, measuring accuracy is high, the low advantage short with test period of cost.
In order to solve the problems of the technologies described above, the utility model provides following technical scheme:
The low temperature test case is used in the superconductor Mechanics Performance Testing; Comprise casing; In the said casing is double-deck space structure, and its one deck is connected with liquid nitrogen container, and is provided with air circulating system and thermal compensation system; Another layer is provided with Mechanics Performance Testing assembly and temperature sensor, and temperature sensor is electrically connected with temperature-controlled cabinet; Connect connection through air circulating system between the double-deck space structure.
Said air circulating system comprises circulating fan, and it is connected with blower motor through bearing.
Said circulating fan comprises the fan blade that adopts epoxy material to process, and its air outlet is the connector of double-deck space structure.
Said thermal compensation system comprises the compensation thermopair, and the compensation thermopair is electrically connected with temperature-controlled cabinet.
Said Mechanics Performance Testing assembly comprises last clamp body and the lower clamp body that is clamped in superconductor sample two ends respectively; Be located at the lower link of said lower clamp body lower end, and bottom-up upper connecting rod, web member and the load sensor that is equipped with clamp body upper end on said successively.
Said casing is the double-layer stainless steel body, and interlayer is filled with low heat-conducting system expansion type insulator.
The Mechanics Performance Testing of the utility model superconductor can provide the more temperature mechanics test environment of widening range with the low temperature test case; The temperature test scope is from 100 ℃～-196 ℃; High-temperature region (100 ℃), low-temperature space (< 120 ℃) have been comprised, a plurality of warm areas such as ultra-low temperature region (< 150 ℃); The scope of application is little in the prior art, measuring accuracy is low, cost is high and the defective of test period length thereby can overcome, to realize that the scope of application is big, measuring accuracy is high, the low advantage short with test period of cost.
Description of drawings
Accompanying drawing is used to provide the further understanding to the utility model, and constitutes the part of instructions, is used to explain the utility model with the embodiment of the utility model, does not constitute the restriction to the utility model.In the accompanying drawings:
Fig. 1 is according to the structural representation of the utility model superconductor Mechanics Performance Testing with the low temperature test case;
In conjunction with accompanying drawing, Reference numeral is following among the utility model embodiment:
The 1-casing; The 2-blower motor; The 3-bearing; The 4-lower link; 5-lower clamp body; 6-superconductor sample; The 7-upper connecting rod; The 8-web member; The 9-load sensor; The 10-temperature sensor; 11-compensates thermopair; The 12-temperature-controlled cabinet; The 13-liquid nitrogen container; 14-liquid nitrogen spraying amount control device; 15-liquid nitrogen thermopair.
Embodiment
Describe below in conjunction with the preferred embodiment of accompanying drawing, should be appreciated that preferred embodiment described herein only is used for explanation and explains the utility model, and be not used in qualification the utility model the utility model.
Embodiment 1
As shown in Figure 1, the low temperature test case is used in Mechanics Performance Testing according to the utility model superconductor, comprises casing 1; In the said casing is double-deck space structure; Its one deck is connected with liquid nitrogen container 13 through liquid nitrogen spraying amount control device 14, and is provided with air circulating system and thermal compensation system, and another layer is provided with Mechanics Performance Testing assembly and temperature sensor 10; Temperature sensor 10 is electrically connected with temperature-controlled cabinet 12, and the temperature sensor of present embodiment is the PT100 thermal resistance temperature sensor; Connect connection through air circulating system between the double-deck space structure.Casing 1 is the double-layer stainless steel body, and interlayer is filled with low heat-conducting system expansion type insulator, and temperature is kept evenly, and heat fluctuation is less, simultaneously, has practiced thrift experimentation cost greatly.
Air circulating system comprises circulating fan 16, and it is connected with blower motor 2 through bearing 3, and circulating fan 16 comprises the fan blade that adopts epoxy material to process, and its air outlet is the connector of double-deck space structure.The thermal compensation system comprises compensation thermopair 11, and compensation thermopair 11 is electrically connected with temperature-controlled cabinet 12.
The Mechanics Performance Testing assembly comprises last clamp body and the lower clamp body 5 that is clamped in superconductor sample 6 two ends respectively; Be located at the lower link 4 of lower clamp body 5 lower ends, and bottom-up upper connecting rod 7, the web member 8 and load sensor 9 that is equipped with successively in last clamp body upper end.
In the present embodiment, in the inside of liquid nitrogen container 13, be provided with the liquid nitrogen spraying amount control device 14 that the delivery outlet with liquid nitrogen container 13 is connected; In the inside of liquid nitrogen container 13, also be provided with liquid nitrogen thermopair 15, liquid nitrogen thermopair 15 is connected through lead and temperature-controlled cabinet 12.
The front and back double-decker design of casing, one deck of casing is the placement space of superconductor sample and temperature sensor, can detect the temperature conditions in the casing; One deck is provided with the air circulating system of adjustable power in the back of casing, in temperature-fall period, starts high-power air circulating system; The temperature of layer box body reaches even before can making at short notice; Because air circulating system can influence measuring accuracy in the superconductor sample testing, therefore when experimental test begins, change the wind circulation of turning down power; So just can neither influence the precision of test, can continue to keep the temperature in the casing again.
Through temperature-controlled cabinet, can control the thermocouple heating in the liquid nitrogen container, make liquid nitrogen gasification; Reach the purpose of pressurization; And then the liquid nitrogen in the liquid nitrogen container is sprayed in the casing through corrugated tube, and be transported to the test section by circulating fan, make the superconductor sample be in the homogeneous temperature field.
During test, temperature-controlled cabinet can be compared according to temperature sensor measured temperature and given cooling temperature, and carries out regulating automatically in real time, to reach constant rate of temperature fall.After reaching the setting working temperature, the duty of liquid nitrogen spraying certainly will not can stop immediately, and the surplus of liquid nitrogen also can continue to spray into casing, like this, will cause the temperature in the casing can continue to reduce, and can't arrive design temperature.Be different from traditional heat sink, this temperature-controlled cabinet adopts the double compensation control mode, and the compensation thermopair promptly is installed in casing; Temperature-controlled cabinet can be controlled liquid nitrogen thermocouple and the interior compensation thermopair of casing in the liquid nitrogen container simultaneously; When reaching, start the heating of compensation thermocouple, and be lower than the power of liquid nitrogen spraying through the power of program setting compensation thermopair near assigned temperature; Therefore can well control the cooling temperature, prevent the overshoot of temperature.
In sum; The utility model cryogenic box can provide the more temperature mechanics test environment of widening range; The temperature test scope is from 100 ℃～-196 ℃, has comprised high-temperature region (100 ℃), low-temperature space (< 120 ℃), a plurality of warm areas such as ultra-low temperature region (< 150 ℃); Thereby the defective long with test period that can overcome that the scope of application is little in the prior art, measuring accuracy is low, cost is high is to realize that the scope of application is big, measuring accuracy is high, cost is low and short excellent of test period.
What should explain at last is: the above is merely the preferred embodiment of the utility model; Be not limited to the utility model; Although the utility model has been carried out detailed explanation with reference to previous embodiment; For a person skilled in the art, it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement.All within the spirit and principle of the utility model, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the utility model.
Claims (6)
1. the low temperature test case is used in the superconductor Mechanics Performance Testing; Comprise casing; It is characterized in that: be double-deck space structure in the said casing, its one deck is connected with liquid nitrogen container, and is provided with air circulating system and thermal compensation system; Another layer is provided with Mechanics Performance Testing assembly and temperature sensor, and temperature sensor is electrically connected with temperature-controlled cabinet; Connect connection through air circulating system between the double-deck space structure.
2. the low temperature test case is used in superconductor Mechanics Performance Testing according to claim 1, it is characterized in that: said air circulating system comprises circulating fan, and it is connected with blower motor through bearing.
3. the low temperature test case is used in superconductor Mechanics Performance Testing according to claim 2, it is characterized in that: said circulating fan comprises the fan blade that adopts epoxy material to process, and its air outlet is the connector of double-deck space structure.
4. the low temperature test case is used in superconductor Mechanics Performance Testing according to claim 1, it is characterized in that: said thermal compensation system comprises the compensation thermopair, and the compensation thermopair is electrically connected with temperature-controlled cabinet.
5. the low temperature test case is used in superconductor Mechanics Performance Testing according to claim 1; It is characterized in that: said Mechanics Performance Testing assembly comprises last clamp body and the lower clamp body that is clamped in superconductor sample two ends respectively; Be located at the lower link of said lower clamp body lower end, and bottom-up upper connecting rod, web member and the load sensor that is equipped with clamp body upper end on said successively.
6. the low temperature test case is used in described superconductor Mechanics Performance Testing according to the arbitrary claim of claim 1-5, it is characterized in that: said casing is the double-layer stainless steel body, and interlayer is filled with low heat-conducting system expansion type insulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202492356U CN202229975U (en) | 2011-07-14 | 2011-07-14 | Low-temperature experiment box for mechanical performance test of superconducting material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202492356U CN202229975U (en) | 2011-07-14 | 2011-07-14 | Low-temperature experiment box for mechanical performance test of superconducting material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202229975U true CN202229975U (en) | 2012-05-23 |
Family
ID=46080559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202492356U Withdrawn - After Issue CN202229975U (en) | 2011-07-14 | 2011-07-14 | Low-temperature experiment box for mechanical performance test of superconducting material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202229975U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102353582A (en) * | 2011-07-14 | 2012-02-15 | 兰州大学 | Low temperature experiment box for testing mechanical properties of superconducting material |
| CN104359768A (en) * | 2014-10-24 | 2015-02-18 | 天津大学 | Testing device for flexural property of concrete beam at ultralow temperature |
| CN104677820A (en) * | 2015-01-29 | 2015-06-03 | 西南交通大学 | Device for testing delaminating characteristic of high-temperature superconductor tape under shear stress |
| WO2023014625A3 (en) * | 2021-08-03 | 2023-06-01 | Illinois Tool Works Inc. | Material testing systems including improved component cooling |
-
2011
- 2011-07-14 CN CN2011202492356U patent/CN202229975U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102353582A (en) * | 2011-07-14 | 2012-02-15 | 兰州大学 | Low temperature experiment box for testing mechanical properties of superconducting material |
| CN104359768A (en) * | 2014-10-24 | 2015-02-18 | 天津大学 | Testing device for flexural property of concrete beam at ultralow temperature |
| CN104677820A (en) * | 2015-01-29 | 2015-06-03 | 西南交通大学 | Device for testing delaminating characteristic of high-temperature superconductor tape under shear stress |
| WO2023014625A3 (en) * | 2021-08-03 | 2023-06-01 | Illinois Tool Works Inc. | Material testing systems including improved component cooling |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102353582B (en) | Low temperature experiment box for testing mechanical properties of superconducting material | |
| CN202182852U (en) | Mechanical property test system for superconducting material in 77K environment | |
| CN202229975U (en) | Low-temperature experiment box for mechanical performance test of superconducting material | |
| Prieto et al. | Temperature distribution and heat losses in molten salts tanks for CSP plants | |
| CN202149868U (en) | Temperature control system of mechanical property test system for superconductor material | |
| CN208334251U (en) | A kind of heat dissipation index measurement device | |
| CN206515429U (en) | A kind of insulating paper is uneven to accelerate thermal ageing test device | |
| CN104677000A (en) | Liquid nitrogen cooling cryogenic device and implementation method for same | |
| CN102353583B (en) | Temperature control system for superconducting material mechanical property test system | |
| CN103116086B (en) | Equipment and method of rapid life tests of built-in multihole heater | |
| CN106596629A (en) | Heat transfer performance testing apparatus of flat-plate micro heat pipe | |
| CN201897577U (en) | Heat pipe testing device | |
| CN103808560B (en) | Continuous temperature control testing system for static mechanical property of 500-4.2K material | |
| CN103472323B (en) | A kind of rapid heat-exchange device through crack flow of fluid medium | |
| CN107576559A (en) | A kind of cooling system for being used in high frequency fatigue test prevent sample overheat | |
| CN204594914U (en) | Groove type solar heat collecting pipe heat waste loses test macro | |
| CN110096079A (en) | A kind of control system and method for low temperature sample stage | |
| CN116222824A (en) | High-precision low-temperature sensor calibration device and calibration method | |
| CN114877548B (en) | Instrument thermal protection device under low temperature environment | |
| CN106705726B (en) | A kind of experiment fuse salt storage tank | |
| CN111122639B (en) | High-low temperature cycle test system for phase change composite material | |
| CN103900914A (en) | Liquid helium temperature zone material three-point bending multi-sample continuous testing device | |
| Xu et al. | Thermal characterization of pulsating heat pipes | |
| CN112285452B (en) | Device and method for measuring low-temperature characteristics of electrical parameters | |
| CN103969288B (en) | A kind of low-temperature space test device of thermal conductivity coefficient |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120523 Effective date of abandoning: 20130417 |
|
| RGAV | Abandon patent right to avoid regrant |