CN2641776Y - High-temp. superconductive magnet and material cooling device - Google Patents
High-temp. superconductive magnet and material cooling device Download PDFInfo
- Publication number
- CN2641776Y CN2641776Y CN 03249733 CN03249733U CN2641776Y CN 2641776 Y CN2641776 Y CN 2641776Y CN 03249733 CN03249733 CN 03249733 CN 03249733 U CN03249733 U CN 03249733U CN 2641776 Y CN2641776 Y CN 2641776Y
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- cryopump
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Abstract
The utility model relates to a novel device for cooling a high temperature superconducting magnet and material, the device comprises a mechanical pump, a cold pump, and a cold container. The utility model is characterized in that between a cold pump 3 and a mechanical pump 1, a vacuum valve 2 is connected, the mechanical pump 1 is connected with a cold container 7 through the vacuum valve 2, and the cold pump 3 is connected with the cold container 7 through a vacuum valve 5. A high temperature superconducting magnet 10 (or a device, or material) is arranged into liquid nitrogen 9 in the cold container 7, and the high temperature superconducting magnet 10 (or the device, or material) in the cold container 7 is connected with an outer instrument 8 through a conductor.
Description
Technical field
The utility model relates to a kind of high-temperature superconducting magnet device, the new equipment of especially a kind of high-temperature superconducting magnet and material cooled.
Background technology
Bismuth system (BSCCO) high temperature superconducting materia that is widely studied for many years and develops is entering the large-scale practical application stage.Because BSCCO belt material of high temperature superconduct performance is placed restrictions on, the superconducting magnet of making of it generally need work in 20-40K.Two kinds of methods of main at present employing provide cryogenic conditions.A kind of is to adopt the small-sized refrigerator refrigeration, and it requires under the low temperature refrigeration work consumption bigger, and the hot link of refrigeration machine and superconducting magnet complexity comparatively.Another kind method places the liquid nitrogen that is provided with heat exchanger with superconducting magnet, and logical liquid helium makes liquid nitrogen become fixed nitrogen in heat exchanger, reaches the temperature that needs.This method still be unable to do without expensive liquid helium, and owing to can't effectively utilize the evaporation sensible heat of liquid helium, so heat exchanger effectiveness is very low.
Summary of the invention
The purpose of this utility model is to disclose and a kind ofly can provides the high-temperature superconducting magnet of the required working temperature of 20-40K and the new equipment of material cooled for high-temperature superconducting magnet, high-temperature superconductive device and high temperature superconducting materia.
The technical scheme that is adopted is to achieve the above object of the invention:
A kind of high-temperature superconducting magnet that is made of mechanical pump, cryopump and low-temperature (low temperature) vessel and the new equipment of material cooled is characterized in that:
Between cryopump 3 and mechanical pump 1, be communicated with by vacuum valve 2, mechanical pump 1 is communicated with low-temperature (low temperature) vessel 7 by vacuum valve 4, and cryopump 3 is communicated with low-temperature (low temperature) vessel 7 by vacuum valve 5; High-temperature superconducting magnet 10 (or device or material) places the liquid nitrogen 9 of low-temperature (low temperature) vessel 7, by conductor the high-temperature superconducting magnet 10 (or device or material) in the low-temperature (low temperature) vessel 7 is connected with its outer instrument 8.As shown in Figure 1.
Describedly be communicated with, be meant that mechanical pump 1 and cryopump 3 by having the pipeline of valve 4,5, are communicated with the upper space of low-temperature (low temperature) vessel 7 with low-temperature (low temperature) vessel 7; The top of described low-temperature (low temperature) vessel 7 has vacuum measurement device 6 to be communicated with the upper space of low-temperature (low temperature) vessel 7.As shown in Figure 1.
Operation principle of the present utility model is:
High-temperature superconducting magnet 10 (or device or material) is placed low-temperature (low temperature) vessel 7 belows, and filling liquid nitrogen 9, high-temperature superconducting magnet 10 (or device or material) is immersed in the liquid nitrogen 9.Valve-off 4,5 starts mechanical pump, opens valve 2, extract the necessary forevacuum of cryopump out after, open small-sized refrigerator, the starting cryopump.Valve-off 2 is opened valve 4, and liquid nitrogen in the low-temperature (low temperature) vessel is reduced pressure.Record until vacuum measurement device 6 and to arrive or near the triple point of liquid nitrogen.After cryopump reached its working temperature, valve-off 4 was opened valve 5, and low-temperature (low temperature) vessel is continued decompression.Liquid nitrogen 9 will become solid nitrogen, and temperature continues to descend.According to the corresponding relation of pressure nitrogen vapor and temperature, observe vacuum measurement device 6 and change, in case vacuum degree reaches the requirement of corresponding temperature, get final product valve-off 5, carry out excitation or measurement with 8 pairs of high-temperature superconducting magnets of instrument.
Advantage of the present utility model is: utilize the low temperature condensation good to nitrogen of the 10-20K condenser of cryopump 3, reduce the vapour pressure of nitrogen in the low-temperature (low temperature) vessel 7, make liquid nitrogen 9 become solid nitrogen, and the high-temperature superconducting magnet in being dipped in liquid nitrogen 9 10 (or device or material) finally reduces to 20-40K, and it is temperature required to satisfy high-temperature superconducting magnet work.Because cryopump 3 is connected with low-temperature (low temperature) vessel 7 usefulness vacuum pipes, the object high-temperature superconducting magnet 10 that is cooled (or device or material) can arbitrarily be changed, and system vacuum connects constant.The refrigeration work consumption of used small-sized refrigerator was little when the refrigeration work consumption of this way cryopump 3 middle-size and small-size refrigeration machines was connected the cooling degree to 20-40K than small-sized refrigerator with the high-temperature superconducting magnet direct heat.
Embodiment
Description of drawings: Fig. 1 is the utility model workpiece connection diagram.
Wherein: 1, mechanical pump; 2,4,5, vacuum valve; 3, cryopump; 6, vacuum measurement device; 7, low-temperature (low temperature) vessel; 8, instrument; 9, liquid nitrogen; 10, high-temperature superconducting magnet (or device or material).
Embodiment
As shown in Figure 1.Between cryopump 3 and mechanical pump 1, be communicated with by vacuum valve 2, mechanical pump 1 is communicated with low-temperature (low temperature) vessel 7 by vacuum valve 4, and cryopump 3 is communicated with low-temperature (low temperature) vessel 7 by vacuum valve 5; High-temperature superconducting magnet 10 (or device or material) places the liquid nitrogen 9 of low-temperature (low temperature) vessel 7, by conductor the high-temperature superconducting magnet 10 (or device or material) in the low-temperature (low temperature) vessel 7 is connected with its outer instrument 8.
Describedly be communicated with, be meant that mechanical pump 1 and cryopump 3 by having the pipeline of valve 4,5, are communicated with the upper space of low-temperature (low temperature) vessel 7 with low-temperature (low temperature) vessel 7; The top of described low-temperature (low temperature) vessel 7 has vacuum measurement device 6 to be communicated with the upper space of low-temperature (low temperature) vessel 7.
Mechanical pump 1 is used for forvacuum; Vacuum valve 2 is used for the break-make control that mechanical pump 1 is connected with cryopump; Cryopump 3 is used for condensation nitrogen, reduces pressure nitrogen vapor, forms solid nitrogen, thus cooling high-temperature superconducting magnet 10 (or device or material); Vacuum valve 4 is used for the break-make control that mechanical pump 1 is connected with low-temperature (low temperature) vessel 7; Vacuum valve 5 is used for cryopump 3 is connected break-make with low-temperature (low temperature) vessel 7 control; Vacuum measurement device 6 is used to measure the vapour pressure on low-temperature (low temperature) vessel 7 tops; Low-temperature (low temperature) vessel 7 is used to hold high-temperature superconducting magnet 10 (or device or material) and liquid nitrogen 9; Instrument 8 is used for high-temperature superconducting magnet 10 (or device or material) excitation or measurement; Deep cooling medium liquid nitrogen 9; High-temperature superconducting magnet 10 (or device or material).
Claims (2)
1, a kind of high-temperature superconducting magnet that constitutes by mechanical pump, cryopump and low-temperature (low temperature) vessel and the new equipment of material cooled, it is characterized in that: between cryopump (3) and mechanical pump (1), there is vacuum valve (2) to be communicated with, mechanical pump (1) is communicated with low-temperature (low temperature) vessel (7) by vacuum valve (4), and cryopump (3) is communicated with low-temperature (low temperature) vessel (7) by vacuum valve (5); High-temperature superconducting magnet (10) places the liquid nitrogen (9) of low-temperature (low temperature) vessel (7), by conductor the high-temperature superconducting magnet (10) in the low-temperature (low temperature) vessel (7) is connected with its outer instrument (8).
2, the new equipment of high-temperature superconducting magnet according to claim 1 and material cooled, it is characterized in that: describedly be communicated with low-temperature (low temperature) vessel (7), be meant that mechanical pump (1) and cryopump (3) by having the pipeline of valve (4), (5), are communicated with the upper space of low-temperature (low temperature) vessel (7); The top of described low-temperature (low temperature) vessel (7) has vacuum measurement device (6) to be communicated with the upper space of low-temperature (low temperature) vessel (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03249733 CN2641776Y (en) | 2003-07-31 | 2003-07-31 | High-temp. superconductive magnet and material cooling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03249733 CN2641776Y (en) | 2003-07-31 | 2003-07-31 | High-temp. superconductive magnet and material cooling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2641776Y true CN2641776Y (en) | 2004-09-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03249733 Expired - Fee Related CN2641776Y (en) | 2003-07-31 | 2003-07-31 | High-temp. superconductive magnet and material cooling device |
Country Status (1)
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| CN (1) | CN2641776Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101400954B (en) * | 2006-03-06 | 2011-06-08 | 波克股份有限公司 | Multi-bath apparatus and method for cooling superconductors |
| CN101536123B (en) * | 2006-10-31 | 2012-02-22 | 林德股份公司 | Method for cooling superconducting magnets |
| CN101636799B (en) * | 2007-03-19 | 2012-04-25 | 皇家飞利浦电子股份有限公司 | Superconductive magnet system for a magnetic resonance examination system |
| CN107365498A (en) * | 2017-08-07 | 2017-11-21 | 中国科学院理化技术研究所 | High-temperature forming insulating material for superconducting magnet and preparation method thereof |
| CN110366664A (en) * | 2017-02-08 | 2019-10-22 | 林德股份公司 | The method and apparatus loaded for cooling and the system including corresponding equipment and load |
-
2003
- 2003-07-31 CN CN 03249733 patent/CN2641776Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101400954B (en) * | 2006-03-06 | 2011-06-08 | 波克股份有限公司 | Multi-bath apparatus and method for cooling superconductors |
| CN101536123B (en) * | 2006-10-31 | 2012-02-22 | 林德股份公司 | Method for cooling superconducting magnets |
| CN101636799B (en) * | 2007-03-19 | 2012-04-25 | 皇家飞利浦电子股份有限公司 | Superconductive magnet system for a magnetic resonance examination system |
| CN110366664A (en) * | 2017-02-08 | 2019-10-22 | 林德股份公司 | The method and apparatus loaded for cooling and the system including corresponding equipment and load |
| CN110366664B (en) * | 2017-02-08 | 2021-08-06 | 林德股份公司 | Method and device for cooling a load and system comprising a corresponding device and load |
| CN107365498A (en) * | 2017-08-07 | 2017-11-21 | 中国科学院理化技术研究所 | High-temperature forming insulating material for superconducting magnet and preparation method thereof |
| CN107365498B (en) * | 2017-08-07 | 2019-12-17 | 中国科学院理化技术研究所 | high-temperature forming insulating material for superconducting magnet and preparation method thereof |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |