CN205075365U - Be used for insulating vacuum -pressure impregnation heating device of large -scale superconducting coil - Google Patents
Be used for insulating vacuum -pressure impregnation heating device of large -scale superconducting coil Download PDFInfo
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- CN205075365U CN205075365U CN201520804195.5U CN201520804195U CN205075365U CN 205075365 U CN205075365 U CN 205075365U CN 201520804195 U CN201520804195 U CN 201520804195U CN 205075365 U CN205075365 U CN 205075365U
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- coil
- pressure impregnation
- temperature
- superconducting coil
- heat
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Abstract
The utility model discloses a be used for insulating vacuum -pressure impregnation heating device of large -scale superconducting coil, including superconducting coil, heat band, thermometer, vacuum -pressure impregnation mould, temperature controller, electric power adjuster, DC power supply and inner heating control system, superconducting coil be located the inside of vacuum -pressure impregnation mould, the heat band winding is on vacuum -pressure impregnation mould surface, heat band and vacuum -pressure impregnation mould have the heat preservation outward. The utility model provides an interior external synchronization joule heating's mode heats the coil, through the resistance of coil itself, lets in mode that the electric current produced the joule heat for the coil and makes the temperature rise of coil, reaches the temperature that needs, heats in step in the coil outside simultaneously, provides an adiabatic environment for coil inner heating. Because the joule heat that conductor itself produced distributes uniformly in whole coil cross -section, the heat exchange is not carried out to coil and external environment condition moreover, has consequently avoided the production of the inside and outside difference in temperature of coil.
Description
Technical field
The utility model relates to Superconductive electric technology field, particularly relates to a kind of for large-scale superconducting coil insulating vacuum pressure impregnating heater.
Background technology
In tokamak large scale superconducting magnet manufacturing process, in order to ensure magnet coil, there is enough insulation and mechanical strength, coil-conductor will be wound around the composite band of glass tape and polyimides according to certain forms, the mode of rear employing vacuum pressure impregnation (VPI) resin carries out insulation solidification process.In solidification processing procedure, according to the requirement of technique of vacuum pressure for dipping electrical, need coil heats to the gel of resin and solidification temperature, and keep a period of time respectively, during this period, require the homogeneous temperature of whole coil, coil temperature also must rise according to certain speed.
In order to ensure insulation quality, the bulk temperature of coil must be evenly.For large-scale superconducting coil, if sectional dimension is comparatively large, conventional external heat mode inevitably will produce internal-external temperature difference, be difficult to meet the requirement of technique of vacuum pressure for dipping electrical to coil temperature uniformity.
Utility model content
The utility model object is exactly the defect in order to make up prior art, provides a kind of for large-scale superconducting coil insulating vacuum pressure impregnating heater.
The utility model is achieved through the following technical solutions:
A kind of for large-scale superconducting coil insulating vacuum pressure impregnating heater, include superconducting coil, heating tape, thermometer, vacuum pressure impregnation mould, temperature controller, power regulator, dc source and inner heating control system, described superconducting coil is positioned at the inside of vacuum pressure impregnation mould, heating tape is wrapped in vacuum pressure impregnation die surface, heat-insulation layer is had outside heating tape and vacuum pressure impregnation mould, described thermometer is positioned at vacuum pressure impregnation die surface, the two ends of described heating tape are connected with power regulator respectively, power regulator is connected with temperature controller, temperature controller is connected with thermometer, dc source is connected with superconducting coil and inner heating control system respectively, inner heating control system is connected with superconducting coil.Inside and outside heating system synchronous working, and use the resistance-temperature relationship characteristic of coil-conductor to carry out inner heated for controlling temperature.
Matching draws superconducting coil resistance and the direct relation of temperature, draws R-T relational expression;
Thermometer is arranged on mould, is connected with heating tape, temperature controller, power regulator, forms closed loop, as external heat control system.The main purpose of external heat makes vacuum pressure impregnation system be in adiabatic environment, external heat system temperature control is the real-time mold temperature of thermometer collection by being arranged on mould, compare with setting value, control signal is fed back to power regulator, by regulating the heating tape power adjusting rate of heat addition and mold temperature;
Coil inside heating system passes into electric current by dc source to coil, and the Joule heat produced by coil self-resistance heats coil;
In heating process, in order to ensure the uniformity of coil internal and external temperature, inside and outside heating system heats with identical starting point and speed;
Inner heating is the main heat source of vacuum pressure impregnation process coil, adopts inner mode of heating to can be good at meeting requirement to homogeneous temperature in dipping process.The temperature of inner heating controls to be by regulating the input current of dc source to control.In dipping process, inner heating control system gathers the current potential of coil in real time and calculates the real time resistance of coil, is drawn the real time temperature of coil, and this is fed back to dc source by R-T relational expression, thus realizes the control to temperature;
The utility model has the advantages that: the mode that the utility model proposes inside and outside synchronous Joule heating heats coil, by the resistance of coil itself, the mode passing into electric current generation Joule heat to coil makes the temperature of coil rise, reach the temperature of needs, heat in coil external sync, for coil inside heating provides an adiabatic environment simultaneously.The Joule heat produced due to conductor itself is evenly distributed in whole coil section, and coil and external environment condition do not carry out heat exchange, therefore avoid the generation of coil internal-external temperature difference.
Superconducting coil inside does not allow to there is sensor for measuring temperature, is therefore the another difficult point in vacuum pressure impregnation process to coil temperature measurement in dipping process.The utility model proposes and by the mode of measuring coil resistance, coil temperature is measured, thus realize temperature control.By arranging equipotential line in coil joint, the voltage of real-time measuring coil and electric current, calculate the resistance value of coil, then pass through resistance and the temperature relation of foundation, calculates the real time temperature of coil, and then realize the control to coil temperature.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
As shown in Figure 1, a kind of for large-scale superconducting coil insulating vacuum pressure impregnating heater, include superconducting coil 1, heating tape 2, thermometer 3, vacuum pressure impregnation mould 4, temperature controller 6, power regulator 7, dc source 8 and inner heating control system 9, described superconducting coil 1 is positioned at the inside of vacuum pressure impregnation mould 4, heating tape 2 is wrapped in vacuum pressure impregnation mould 4 surface, heat-insulation layer 5 is had outside heating tape 2 and vacuum pressure impregnation mould 4, described thermometer 3 is positioned at vacuum pressure impregnation mould 4 surface, the two ends of described heating tape 2 are connected with power regulator 7 respectively, power regulator 7 is connected with temperature controller 6, temperature controller 6 is connected with thermometer 3, dc source 8 is connected with superconducting coil 1 and inner heating control system 9 respectively, inner heating control system 9 is connected with superconducting coil 1.
Claims (1)
1. one kind for large-scale superconducting coil insulating vacuum pressure impregnating heater, it is characterized in that: include superconducting coil, heating tape, thermometer, vacuum pressure impregnation mould, temperature controller, power regulator, dc source and inner heating control system, described superconducting coil is positioned at the inside of vacuum pressure impregnation mould, heating tape is wrapped in vacuum pressure impregnation die surface, heat-insulation layer is had outside heating tape and vacuum pressure impregnation mould, described thermometer is positioned at vacuum pressure impregnation die surface, the two ends of described heating tape are connected with power regulator respectively, power regulator is connected with temperature controller, temperature controller is connected with thermometer, dc source is connected with superconducting coil and inner heating control system respectively, inner heating control system is connected with superconducting coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520804195.5U CN205075365U (en) | 2015-10-13 | 2015-10-13 | Be used for insulating vacuum -pressure impregnation heating device of large -scale superconducting coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520804195.5U CN205075365U (en) | 2015-10-13 | 2015-10-13 | Be used for insulating vacuum -pressure impregnation heating device of large -scale superconducting coil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205075365U true CN205075365U (en) | 2016-03-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520804195.5U Expired - Fee Related CN205075365U (en) | 2015-10-13 | 2015-10-13 | Be used for insulating vacuum -pressure impregnation heating device of large -scale superconducting coil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205075365U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107084800A (en) * | 2017-06-26 | 2017-08-22 | 合肥中科离子医学技术装备有限公司 | A kind of method for density-winding superconducting coil temperature-fall period coil temperature survey |
| CN109273191A (en) * | 2018-09-26 | 2019-01-25 | 中国科学院合肥物质科学研究院 | A kind of helium gas cooling type high-temperature superconductor component for high current high-temperature superconductive lead wire |
| CN109878106A (en) * | 2019-01-30 | 2019-06-14 | 南京航空航天大学 | A kind of polymer matrix composites based on dynamic thermodynamic barrier are heating and curing method |
-
2015
- 2015-10-13 CN CN201520804195.5U patent/CN205075365U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107084800A (en) * | 2017-06-26 | 2017-08-22 | 合肥中科离子医学技术装备有限公司 | A kind of method for density-winding superconducting coil temperature-fall period coil temperature survey |
| CN109273191A (en) * | 2018-09-26 | 2019-01-25 | 中国科学院合肥物质科学研究院 | A kind of helium gas cooling type high-temperature superconductor component for high current high-temperature superconductive lead wire |
| CN109273191B (en) * | 2018-09-26 | 2019-12-24 | 中国科学院合肥物质科学研究院 | Helium cooling type high-temperature superconducting assembly for large-current high-temperature superconducting current lead |
| CN109878106A (en) * | 2019-01-30 | 2019-06-14 | 南京航空航天大学 | A kind of polymer matrix composites based on dynamic thermodynamic barrier are heating and curing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160309 Termination date: 20181013 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |