CN108922724B - Adjustable high-energy-transfer resistance system based on ceramic resistor - Google Patents
Adjustable high-energy-transfer resistance system based on ceramic resistor Download PDFInfo
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- CN108922724B CN108922724B CN201810972997.5A CN201810972997A CN108922724B CN 108922724 B CN108922724 B CN 108922724B CN 201810972997 A CN201810972997 A CN 201810972997A CN 108922724 B CN108922724 B CN 108922724B
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- energy
- resistor
- ceramic
- energy transfer
- resistors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F6/00—Superconducting magnets; Superconducting coils
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/60—Superconducting electric elements or equipment; Power systems integrating superconducting elements or equipment
Abstract
The invention discloses an adjustable high-energy-transfer resistance system based on a ceramic resistor. Each system is formed by arranging a plurality of energy-transfer resistor stacks on the wall, building an air duct under a specially-made foundation, and each energy-transfer resistor stack is provided with a blower. An air draft duct is arranged at the top end of the energy transfer resistor stack, and all the air ducts are connected with the outside of the wall body through an exhaust fan to exchange air, so that hot air is timely pumped outdoors. Compared with other energy transfer systems, the energy transfer system provided by the invention adopts ceramic resistor as a base, and the influence of electromagnetic stress deformation is not needed to be considered, so that the additional consideration of fixed support of the energy transfer system can be reduced.
Description
Technical Field
The invention relates to the technical field of superconducting fusion devices, in particular to an adjustable high-energy-transfer resistance system based on a ceramic resistor.
Background
During the experiment of the superconducting fusion device, once the superconducting magnet is quenched, a large amount of energy is stored in the magnet, so that the superconducting magnet is damaged. Therefore, the quench protection system is a first protection measure for the superconducting magnet when quench phenomenon occurs, and the quench protection system transfers the energy existing in the superconducting magnet to the high-energy-transfer resistance system through controlling the switching procedure of the quench protection system, and finally dissipates the energy through the consumption of the energy-transfer resistance heat of the moving resistance system, so that the aim of protecting the superconducting magnet is achieved.
At present, a large number of high-energy-transfer resistor systems are actually used, and the energy of a superconducting magnet is mainly consumed through energy transfer and heating of stainless steel, but because the stainless steel sheet is greatly influenced by electromagnetic effect, a plurality of internal supports are required to be designed to protect the normal operation of the resistor sheet, and therefore, more complex requirements are put forward on process manufacturing. The ceramic resistor is used as a high-energy transfer resistor, so that the system is simple in structural design, occupies smaller space, and is lower in temperature rise value required under the condition of the same energy load.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides an adjustable high-energy-transfer resistor system based on a ceramic resistor.
The invention is realized by the following technical scheme:
the utility model provides an adjustable high energy moves can resistance system based on ceramic resistor, includes that a plurality of energy moving resistor matrix stacks of juxtaposing are equipped with convulsions wind channel and wind channel of blowing respectively in the top and the below that move can resistor matrix stack, is equipped with air exhauster and hair-dryer respectively in the top and the below that every moves can resistor matrix stack, and all hair-dryers are connected with wind channel, and all air exhauster are connected with the convulsions wind channel.
The energy transfer resistor matrix stack is formed by stacking a plurality of energy transfer resistor modules, and the energy transfer resistor modules are connected in series or in parallel through current leads.
The energy-transfer resistor module comprises a plurality of resistor modules and an epoxy resin outer frame, wherein the resistor modules penetrate through the centers of the resistors through supporting rods and are fixed on the epoxy resin outer frame through bolts.
The resistor is a ceramic resistor, the ceramic resistor is a cake-shaped structure with a hollow center, the conductive surfaces of the ceramic resistor are arranged on the upper surface and the lower surface of the cake-shaped structure, the ceramic resistor is connected in series by penetrating through the centers of all the ceramic resistors through a supporting rod, and then a metal conductive sheet is connected to the conductive surfaces of the ceramic resistors at the outermost sides of the two sides, and is connected with a spring gasket by crimping and fixed through a nut.
The supporting rod is formed by wrapping high-voltage-resistant insulating mica with a stainless steel tube.
The front end of each energy-transfer resistor module is led out of a current lead of the anode and the cathode through an opening, and the current lead is connected across the two modules through a connecting copper plate.
A plurality of lifting holes are formed in the left side and the right side of each epoxy resin outer frame.
1. The high-energy-transfer resistance system consists of a plurality of energy-transfer resistance matrix stacks, and the resistance value of the whole resistance system can be changed by changing the serial-parallel connection mode of all stacks. Under the condition that the inductance values of the superconducting magnets are the same, the time of energy transfer can be changed according to the load requirement by changing the resistance value of the resistance system.
2. Each energy-transfer resistor matrix stack related by the invention consists of a plurality of energy-transfer resistor modules, and the resistance value of the single energy-transfer resistor matrix stack can be changed through serial-parallel adjustment, so that the adjustment of the resistance value of the whole system is facilitated.
3. Each energy-transfer resistor module is provided with copper current connection leads which are arranged in parallel and extend from the front part, and can be used for connecting the resistor modules.
4. The energy-transfer resistor module adopts a ceramic resistor with a ring cake-shaped structure, the center positions of all resistors are fixed on the frame by traversing the supporting rod, and the two ends of the resistors are pressed by the spring gaskets, so that better connection effect between the resistors can be ensured. And meanwhile, the outer side of each group of ceramic resistors is connected with a current lead sheet which is connected with the inside of the module.
5. The supporting rod adopts a form of wrapping insulating high-pressure-resistant mica outside the steel structure, so that the high-strength support can be improved, and the high-strength pressure resistance and insulation can be provided.
6. The system adopts an air cooling means, a blower is arranged at the lower part of each stack, and the upper parts of all energy-moving resistor stacks are connected with ventilating ducts for pumping hot air outdoors.
The invention has the advantages that: compared with other energy transfer systems, the energy transfer system provided by the invention adopts ceramic resistor as a base, and the influence of electromagnetic stress deformation is not needed to be considered, so that the additional consideration of fixed support of the energy transfer system can be reduced. Meanwhile, the ceramic resistor is almost a non-inductive component, and the internal inductance of the whole resistor system is almost zero, so that the energy transfer efficiency can be better improved.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a diagram of the structure of the energy transfer resistor module.
Fig. 3 is a rear block diagram of the energy transfer resistor module with the front side plate removed.
Fig. 4 is an internal structure diagram of the energy transfer resistor module.
Fig. 5 is a block diagram of a single resistor module.
Fig. 6 is a structural view of a support bar.
Fig. 7 is a diagram showing a connection structure between energy transfer resistor modules.
Detailed Description
As shown in FIG. 1, an adjustable high-energy transfer resistance system based on ceramic resistors comprises a plurality of energy transfer resistance matrix stacks 1 which are arranged in parallel, an exhaust air duct 2 and an air blowing air duct 3 are respectively arranged above and below the energy transfer resistance matrix stacks 1, an exhaust fan 4 and an air blower 5 are respectively arranged above and below each energy transfer resistance matrix stack 1, all the air blowers 5 are connected with the air blowing air duct 3, and all the exhaust fans 4 are connected with the exhaust air duct 2. Each system is formed by arranging a plurality of energy transfer resistor stacks 1 on the wall, building an air duct under a specially-made foundation, and each energy transfer resistor stack is provided with a blower 5. An air draft duct 2 is arranged at the top end of the energy transfer resistor stack, and all the air draft ducts are connected with the outside of the wall body through an air draft fan 4 for air exchange, so that hot air is timely pumped outdoors.
The energy transfer resistor matrix stack 1 is formed by stacking a plurality of energy transfer resistor modules 6, and the energy transfer resistor modules 6 are connected in series or in parallel through current leads 7. According to actual needs, the placement of the matrix of the adjustable resistor modules and the series-parallel connection mode change the electrical performance of the whole resistor.
The energy transfer resistor module 6 as shown in fig. 2 and 3 comprises a plurality of resistor modules 8 and an epoxy resin outer frame 9, wherein the resistor modules 8 are fixed on the epoxy resin outer frame 9 through supporting rods 10 passing through the centers of a plurality of resistors 11 and then through bolts 12. Each energy-transfer resistor module 6 is formed by casting an epoxy resin outer frame 9, and an upper plane and a lower plane of the energy-transfer resistor module are in a form without panels in order to facilitate heat dissipation of the resistor.
As shown in fig. 4 and 5, the resistor 11 is a ceramic resistor, the ceramic resistor is a cake-shaped structure with a hollow center, the conductive surfaces thereof are arranged on the upper and lower surfaces of the cake-shaped structure, the support rod 10 passes through the centers of all the ceramic resistors to connect the ceramic resistors in series, and then the metal conductive sheet 13 is connected to the conductive surfaces of the outermost ceramic resistors on the two sides, and the metal conductive sheet is connected with the spring washer 14 by crimping and is fixed by the nut 15, so that tight connection is realized, and the contact effectiveness of the conductive surfaces of the resistor is ensured. The ceramic resistor in the single module can be composed of a plurality of groups of ceramic resistors, and the connection inside the ceramic resistor can be changed, so that the resistance value of the single module resistor is changed. And after the resistance value is determined, finally, packaging all the ceramic resistors in an epoxy resin frame.
As shown in fig. 6, the support rod 10 is formed by wrapping high-voltage-resistant insulating mica 17 with a stainless steel tube 16. The strength of the whole support rod can be improved by penetrating the stainless steel tube 16 in the middle, so that the deformation of the support rod during support can be ensured. The mica 17 wrapped on the periphery can effectively improve the pressure resistance level of the support rod and avoid breakdown of the ceramic resistor under the condition of electrification.
As shown in fig. 7, the front end of each energy transfer resistor module 6 is led out of the current lead 7 of the positive electrode and the negative electrode through the opening, and the current lead 7 is connected across the two modules through the connecting copper plate 18 for series-parallel connection between the modules.
A plurality of lifting holes 19 are formed in the left side and the right side of each epoxy resin outer frame 9 and are used for lifting during adjustment, installation or maintenance of the resistor matrix.
Claims (3)
1. An adjustable high energy moves can resistance system based on ceramic resistance, its characterized in that: the energy transfer device is used for transferring energy in the quench process of the superconducting magnet and comprises a plurality of energy transfer resistor matrix stacks which are arranged in parallel, wherein an exhaust air duct and an air blowing air duct are respectively arranged above and below the energy transfer resistor matrix stacks, an exhaust fan and an air blower are respectively arranged above and below each energy transfer resistor matrix stack, all the air blowers are connected with the air blowing air duct, and all the exhaust fans are connected with the exhaust air duct;
the energy transfer resistor matrix stack is formed by stacking a plurality of energy transfer resistor modules, and the energy transfer resistor modules are connected in series or in parallel through current leads;
the energy-transfer resistor module comprises a plurality of resistor modules and an epoxy resin outer frame, wherein the resistor modules penetrate through the centers of the resistors through supporting rods and are fixed on the epoxy resin outer frame through bolts;
the resistors are ceramic resistors, the ceramic resistors are in a cake-shaped structure with a hollow center, the conductive surfaces of the ceramic resistors are arranged on the upper surface and the lower surface of the cake-shaped structure, the ceramic resistors are connected in series through the centers of all the ceramic resistors by a supporting rod, and then a metal conductive sheet is connected to the conductive surfaces of the ceramic resistors at the outermost sides of the two sides, and is connected with a spring gasket by crimping and fixed by a nut;
the front end of each energy-transfer resistor module is led out of a current lead of the anode and the cathode through an opening, and the current lead is connected across the two modules through a connecting copper plate.
2. An adjustable high energy shift resistance system based on ceramic resistance according to claim 1, wherein: the supporting rod is formed by wrapping high-voltage-resistant insulating mica with a stainless steel tube.
3. An adjustable high energy shift resistance system based on ceramic resistance according to claim 1, wherein: a plurality of lifting holes are formed in the left side and the right side of each epoxy resin outer frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810972997.5A CN108922724B (en) | 2018-08-24 | 2018-08-24 | Adjustable high-energy-transfer resistance system based on ceramic resistor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810972997.5A CN108922724B (en) | 2018-08-24 | 2018-08-24 | Adjustable high-energy-transfer resistance system based on ceramic resistor |
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| Publication Number | Publication Date |
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| CN108922724A CN108922724A (en) | 2018-11-30 |
| CN108922724B true CN108922724B (en) | 2023-10-03 |
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| CN201810972997.5A Active CN108922724B (en) | 2018-08-24 | 2018-08-24 | Adjustable high-energy-transfer resistance system based on ceramic resistor |
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| CN2779570Y (en) * | 2004-10-08 | 2006-05-10 | 朱仲彦 | High energy ZnO and PTC compound component |
| CN201080139Y (en) * | 2007-06-18 | 2008-07-02 | 株洲南车时代电气股份有限公司 | Braking resistance for orbit traffic locomotive |
| CN201369374Y (en) * | 2009-03-18 | 2009-12-23 | 河北凯翔科技有限公司 | Air passage subassembly in assembled discharge power module |
| CN102472514A (en) * | 2009-07-01 | 2012-05-23 | Lg电子株式会社 | Ventilation system |
| CN102934309A (en) * | 2010-01-21 | 2013-02-13 | 超功率有限公司 | Superconducting fault current-limiter with variable shunt impedance |
| CN202871435U (en) * | 2012-08-03 | 2013-04-10 | 株洲联诚集团有限责任公司 | Air-quantity self-adaption, low-noise and energy-saving-type urban rail locomotive brake resistor device |
| CN103091654A (en) * | 2011-10-31 | 2013-05-08 | 通用电气公司 | Single switch dump resistor ladder network for magnet quench protection |
| CN105895293A (en) * | 2015-02-12 | 2016-08-24 | 西门子医疗有限公司 | Passive adaptive quench propagation circuit |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105513743B (en) * | 2014-10-17 | 2019-01-01 | 通用电气公司 | Superconducting magnet system and its quenching protection device |
-
2018
- 2018-08-24 CN CN201810972997.5A patent/CN108922724B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2779570Y (en) * | 2004-10-08 | 2006-05-10 | 朱仲彦 | High energy ZnO and PTC compound component |
| CN201080139Y (en) * | 2007-06-18 | 2008-07-02 | 株洲南车时代电气股份有限公司 | Braking resistance for orbit traffic locomotive |
| CN201369374Y (en) * | 2009-03-18 | 2009-12-23 | 河北凯翔科技有限公司 | Air passage subassembly in assembled discharge power module |
| CN102472514A (en) * | 2009-07-01 | 2012-05-23 | Lg电子株式会社 | Ventilation system |
| CN102934309A (en) * | 2010-01-21 | 2013-02-13 | 超功率有限公司 | Superconducting fault current-limiter with variable shunt impedance |
| CN103091654A (en) * | 2011-10-31 | 2013-05-08 | 通用电气公司 | Single switch dump resistor ladder network for magnet quench protection |
| CN202871435U (en) * | 2012-08-03 | 2013-04-10 | 株洲联诚集团有限责任公司 | Air-quantity self-adaption, low-noise and energy-saving-type urban rail locomotive brake resistor device |
| CN105895293A (en) * | 2015-02-12 | 2016-08-24 | 西门子医疗有限公司 | Passive adaptive quench propagation circuit |
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| CN108922724A (en) | 2018-11-30 |
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