CN108666061B - Super-power superconducting energy transfer resistor matrix based on air cooling heat dissipation - Google Patents
Super-power superconducting energy transfer resistor matrix based on air cooling heat dissipation Download PDFInfo
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- CN108666061B CN108666061B CN201810251062.8A CN201810251062A CN108666061B CN 108666061 B CN108666061 B CN 108666061B CN 201810251062 A CN201810251062 A CN 201810251062A CN 108666061 B CN108666061 B CN 108666061B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C13/00—Resistors not provided for elsewhere
- H01C13/02—Structural combinations of resistors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C1/00—Details
- H01C1/01—Mounting; Supporting
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C1/00—Details
- H01C1/08—Cooling, heating or ventilating arrangements
- H01C1/082—Cooling, heating or ventilating arrangements using forced fluid flow
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C1/00—Details
- H01C1/14—Terminals or tapping points or electrodes specially adapted for resistors; Arrangements of terminals or tapping points or electrodes on resistors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C3/00—Non-adjustable metal resistors made of wire or ribbon, e.g. coiled, woven or formed as grids
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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
- H01F6/003—Methods and means for discharging superconductive storage
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Abstract
The invention discloses an air-cooling heat dissipation type ultra-high-power superconducting energy-transfer resistor matrix which is formed by stacking a plurality of detachable resistor modules on an insulating truss, wherein each resistor module is formed by overlapping a plurality of stainless steel resistor sheets, a high-temperature resin support is arranged between every two adjacent stainless steel resistor sheets, all the resistor sheets are fixed by penetrating all the resistor sheets through a plurality of resin rods between the stainless steel resistor sheets in a single resistor module, two current lead rows are fixed on each resistor module, and the resistor modules are connected through the connection current lead rows. The single-module detachable matrix is adopted, and any two adjacent matrixes can adopt a series-parallel connection mode, so that the final resistance value formed by the matrix is flexible and variable. The single resistance module is formed by Z-shaped welding of stainless steel sheets, and resin is used for fixing and supporting every two adjacent resistance sheets.
Description
Technical Field
The invention relates to the technical field of quench protection of superconducting magnet devices, in particular to an air-cooled heat dissipation type ultra-high-power superconducting energy-transfer resistor matrix.
Background
With the high-speed development of national economy, the input and research of renewable and high-efficiency energy sources in the future, the superconducting energy sources with large power, light weight, small volume, small loss and quick response are the trend of the energy development of the countries in the future. The superconducting devices are expensive to manufacture and therefore must be extremely well protected. Especially, when the superconducting device loses time, a large amount of energy is accumulated in the superconducting magnet, and if the internal energy is not transferred in the first time, not only the superconducting magnet can be seriously damaged without being restored, but also an electronic system supported by the superconducting magnet can be seriously damaged, and the consequence can not be predicted. Therefore, the invention designs an ultra-high power superconducting energy-transfer resistor matrix based on an air cooling heat dissipation type.
Disclosure of Invention
The invention aims to make up for the defects of the prior art and provides an air-cooling heat dissipation type ultra-high-power superconducting energy-transfer resistor matrix.
The invention is realized by the following technical scheme:
the utility model provides an ultra-large power superconduction moves ability resistance matrix based on air-cooled heat dissipation formula, is piled up on insulating truss by several detachable resistance module and constitutes, the resistance module form by a plurality of stainless steel resistance thin slice superpositions, change resistance matrix resistance through series connection or parallelly connected resistance module, install insulating high temperature resistant resin between every adjacent stainless steel resistance thin slice and support, support through all resistance thin slices of many G10 support rod break-over between the stainless steel resistance thin slice in single resistance module, all be fixed with two electric current lead rows on every resistance module, connect electric current lead row through the mode of flexible coupling and connect each resistance module.
The stainless steel resistor sheet is placed in a frame made of insulating resin, and resin plates are not arranged on the upper surface and the lower surface of the frame for air cooling circulation.
And a ventilating duct is arranged below the insulating truss, and an air suction device is arranged above the insulating truss. The cooling mode adopts a forced air cooling mode, modules in each row are not blocked from bottom to top, an air outlet is arranged below the insulating truss, and an air suction device is arranged above the insulating truss, so that the rapid exchange of hot air and air is realized.
A plurality of insulating high-temperature-resistant epoxy resin strips are arranged between every two layers of the resistor to support the resistor, so that the electromagnetic hard force deformation of the resistor in the process of passing large current is within an acceptable range. The resistance card is used for supporting the whole resistance module to resist the self-gravity effect by transversely fixing a plurality of supporting rods made of G10 (a glass fiber and resin laminated composite material).
The stainless steel resistive sheets in a single resistive module are arranged in parallel layer by layer, and a plurality of stainless steel resistive sheets are welded into an integral module in series in a Z-shaped mode.
The outer side of the resistance module is provided with an insulating frame, and two ends of the G10 supporting rod are respectively fixed on the inner wall of the insulating frame.
The current lead rows are fixed on the insulating frame through bolts, wherein two stainless steel resistor sheets located at the outermost sides are led out and connected to the two current lead rows respectively, and the rest stainless steel resistor sheets are all arranged in the insulating frame.
Current lead row adopts the bolt fastening mode, and two arbitrary adjacent current lead rows can be connected through the mode of flexible coupling, both can guarantee articulate stability, can guarantee again that the connectivity is not influenced by electromagnetic force deformation.
1. The energy-shifting resistor matrix adopts a detachable modular array, and can effectively realize the resistor matrix of a target resistance value through series-parallel connection.
2. The energy-shifting resistor matrix can realize the energy shifting of a high-power superconducting magnet device above GJ level, and can realize the design of unloading 1GJ energy by a single resistor matrix.
3. The whole resistor matrix adopts an insulating truss support structure, the truss corresponding to the 10 x 3 matrix is supported, and the back of each truss is provided with four bolts, so that the resistor module can be stably fixed on the truss.
4. According to the invention, the single resistance module is formed by connecting 1 mm of stainless steel in a sequential unilateral Z-shaped welding mode, and the distance between each layer of resistance sheets is 5 mm.
5. 3 insulating high-temperature-resistant resin strips with the thickness of 5 mm are fixed between each layer of resistor thin sheet of a single resistor module to stably support, so that deformation caused by the influence of electromagnetic hard force is avoided.
6. The invention is provided with G10 supporting rods which penetrate through the whole resistor sheet layer and are perpendicular to the direction of the resistor sheet of the resistor module for supporting the resistor module.
7. According to the invention, the single resistor module leads out the current lead row through the two outermost resistor sheets, and the rest part of the single resistor module is completely encapsulated and positioned in the resin frame. The current lead bar is fixed on the surface of the frame through bolt fixing connection.
8. According to the invention, each adjacent resistor module of the resistor matrix can be connected in series and parallel through the current lead row led out by connection, and each current lead row is provided with four bolts for fixing.
9. The cooling mode of the invention is forced air cooling, three air inlets are arranged to respectively blow three rows of resistance matrix modules through constructing the civil engineering part below, and simultaneously, in order to ensure the effectiveness of air cooling, the top end of the invention is provided with an air suction channel.
The matrix functions as: when the superconducting magnet loses time, the superconducting magnet can quickly transfer the energy accumulated in the superconducting magnet to the energy-transfer resistance matrix, and the energy-transfer resistance matrix dissipates heat by itself to be decomposed. Meanwhile, due to the huge heat caused by the energy transfer of the energy transfer resistor matrix, the energy transfer resistor matrix needs to be cooled at any time by adopting a variable-frequency air-cooled heat dissipation system with efficient reaction. The frame of the resistance matrix is supported by an insulating truss, three ventilation inlets are arranged at the bottom of the truss, the truss is externally connected with a high-sensitivity variable-frequency fan, and the top end of the truss is provided with an air-pumping outlet to dissipate heat out of a room.
The invention has the advantages that: the single-module detachable matrix is adopted, and any two adjacent matrixes can adopt a series-parallel connection mode, so that the final resistance value formed by the matrix is flexible and variable. The single resistance module is formed by welding stainless steel sheets in a Z shape, and equivalent inductance can be effectively reduced. And each adjacent resistor thin sheet is fixedly supported by resin. Meanwhile, multiple G10 supporting rods in the stacked stainless steel sheets are punched and fixed on the wall of the resistance module, so that the stability of the resistance module can be effectively ensured.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a diagram of a stainless steel resistive sheet.
Fig. 3 is a view showing the internal support structure of the resistor module.
Fig. 4 is a single resistor block diagram.
Fig. 5 is a front structural view of the resistor module.
Fig. 6 is a top view of a resistor module.
Fig. 7 is a diagram of a resistor matrix topology.
Fig. 8 is a view showing a connection structure of a current lead bar.
Fig. 9 is a diagram of a flexible connection structure.
Fig. 10 is a view showing the structure of an insulating truss.
Fig. 11 is a schematic diagram of the front side structure of the resistor matrix.
Fig. 12 is a rear structure diagram of the resistor matrix.
Detailed Description
As shown in fig. 1, an ultra-high power superconducting energy-transfer resistor matrix based on air cooling heat dissipation is formed by stacking a plurality of detachable resistor modules 1 on an insulating truss 2, wherein the resistor modules 1 are formed by overlapping a plurality of stainless steel resistor sheets 3, the resistance of the resistor matrix is changed by connecting the resistor modules 1 in series or in parallel, a high-temperature resin support 4 is arranged between every two adjacent stainless steel resistor sheets 3, the stainless steel resistor sheets 3 in a single resistor module 1 are fixed by penetrating all the resistor sheets 3 through a plurality of G10 support rods 5, two current lead rows 6 are fixed on each resistor module 1, and the resistor modules 1 are connected by connecting the current lead rows 6.
An air outlet 7 is arranged below the insulating truss 2, and an air suction device 8 is arranged above the insulating truss 2.
As shown in fig. 2 and 3, the stainless steel resistive sheets 3 in a single resistive module 1 are arranged in parallel layer by layer, and a plurality of stainless steel resistive sheets 3 are welded in series in a zigzag manner to form an integral module.
The outer side of the resistor module 1 is provided with an insulating frame 9, and two ends of the resin rod 5 are respectively fixed on the inner wall of the insulating frame 9.
The current lead rows 6 are fixed on the insulating frame 9 through bolts, wherein two stainless steel resistor sheets 3 positioned at the outermost sides are led out and connected to the two current lead rows 6 respectively, and the rest stainless steel resistor sheets 3 are all placed in the insulating frame 9.
The current lead row 6 and the outer wall of the resistance module 1 are fixed through resin materials.
The connection between the current lead rows 6 is in the form of a flexible connection 10.
As shown in fig. 1, each energy-shifting resistor matrix can carry 1GJ of energy, which can be combined by 10 × 3 resistor modules. Three ventilation pipelines are arranged below the resistance matrix to cool the resistance matrix, and in order to ensure the smoothness of blowing and overcome the gravity effect and simultaneously facilitate the timely discharge of hot air, an air suction device is arranged above the resistance matrix.
As shown in fig. 2 and 3, the internal resistor sheet of the energy transfer resistor of the present invention is made of stainless steel and has a thickness of 1 mm, considering the weight maturity, structural stability and economic applicability. The manufacturing method comprises the following steps: the stainless steel resistance sheets are arranged layer by layer in parallel, and one side of each two adjacent sheets is welded by argon arc and sequentially processed. Therefore, the whole single resistance module can be connected in series to form an integral module, and two ends of the integral module can be welded into a Z shape to reduce the equivalent inductance to the minimum.
Through simulation experiment calculation, and in order to reduce the space utilization rate, the interval between every two layers of resistors is 5 millimeters, and 3 resin strips are adopted for supporting, so that the deformation of the resistor sheet under the action of electromagnetic force can be avoided. Meanwhile, the support is carried out by using fewer resin strips in the middle, and the heat dissipation effect of the whole resistor matrix is better.
Due to gravity and for better heat dissipation, the lower part of the whole resistor matrix only supports the contact part of the adjacent resistors, and does not provide bottom end support for the resistor sheets of the whole resistor module. Therefore, the resistor sheets penetrate through the resistor sheets, as shown in fig. 4, the inside of a single resistor module is formed by penetrating all the resistor sheets through a plurality of G10 support rods, and the two ends of the support rods are fixed on the frame walls of the resistor module.
As shown in fig. 5 and 6, the leads of the single resistor module are in the form of current lead rows, which are fixed by four bolts, so that the current transmission is more uniform, and the structural stability of the connection is better. Two stainless steel resistor sheets on the outermost side are led out and connected to a current lead line, and the rest resistor sheets are all arranged in a frame made of resin materials, so that mutual influence during current transmission is avoided.
Since the thickness of the resistive foil is 1 mm, the structural stability of the connection with the current lead row is poor. Therefore, the current lead bar is fixed to the outer wall of the resistance module using bolts. When the device works, the vibration and the deformation of the current lead bar can be ignored.
The single resistor matrix can shift the energy of 1GJ, and the resistance value of the corresponding single resistor matrix is about 0.1 ohm, and the topology structure of the resistor matrix can be shown in fig. 7 because the single resistor matrix adopts a matrix array of 10 x 3.
When the resistance value corresponding to the energy required to be unloaded is not 0.1 ohm, the target resistance value can be formed in a series-parallel connection mode. The connection structure is shown in figure 8.
In order to avoid the resistance module connecting piece from being damaged by rigid and hard force, the connecting piece of the resistance module adopts a flexible connection design, as shown in fig. 9.
As shown in fig. 10, 11 and 12, each resistor module of the resistor matrix is placed on the insulating truss, and finally the front surface of the resistor matrix is a current lead line row led out from two ends of each resistor module, and meanwhile, the single resistor module can be conveniently unloaded from the truss. Four fixing nuts are arranged behind each unit of the insulating truss and can fix the insulating truss with the resistance module. The design can effectively ensure the stability of the resistor stack when the resistor stack works, and is convenient to disassemble when maintenance is needed.
Claims (1)
1. The utility model provides a super high power superconduction moves ability resistance matrix based on forced air cooling heat dissipation formula which characterized in that: the resistance module is formed by stacking a plurality of detachable resistance modules on an insulation truss, the resistance module is formed by overlapping a plurality of stainless steel resistance sheets, the resistance value of a resistance matrix is changed by serially or parallelly connecting the resistance modules, a high-temperature-resistant insulating resin support is arranged between every two adjacent stainless steel resistance sheets, all the resistance sheets are penetrated through by a plurality of G10 support rods between the stainless steel resistance sheets in a single resistance module for fixation, two current lead rows are fixed on each resistance module, and the resistance modules are connected by connecting the current lead rows;
the single resistance module is detachably arranged in the truss, the resistance module is embedded in the truss, and the back of the resistance module is fixed through a nut;
stainless steel resistive sheets in a single resistive module are arranged in parallel layer by layer, and a plurality of stainless steel resistive sheets are welded into an integral module in series in a Z-shaped mode;
the outer side of the resistance module is provided with an insulating frame, and two ends of the G10 supporting rod are respectively fixed on the inner wall of the insulating frame;
the current lead rows adopt a bolt fixing mode, and any two adjacent current lead rows are connected in a soft connection mode;
the stainless steel resistance sheet is arranged in an insulating frame, and resin plates are not arranged on the upper surface and the lower surface of the frame and are used for air cooling circulation;
the air duct is arranged below the insulating truss, the air suction device is arranged above the insulating truss, the cooling mode of the air suction device is a forced air cooling mode, modules in each row are not blocked from bottom to top, the air inlet is arranged below the insulating truss, and the air suction device is arranged above the insulating truss, so that the hot air and the air can be rapidly exchanged;
a plurality of high-temperature-resistant insulating resin support resistor discs are arranged between every two layers of the resistor disc, so that the electromagnetic hard force deformation of the resistor disc in the process of passing large current is ensured to be within an acceptable range, and a plurality of G10 support rods are transversely fixed on the resistor disc and used for supporting the whole resistor module to resist the self gravity effect;
the current lead rows are fixed on the insulating frame through bolts, wherein two stainless steel resistor sheets located at the outermost sides are led out and connected to the two current lead rows respectively, and the rest stainless steel resistor sheets are all arranged in the insulating frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810251062.8A CN108666061B (en) | 2018-03-26 | 2018-03-26 | Super-power superconducting energy transfer resistor matrix based on air cooling heat dissipation |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810251062.8A CN108666061B (en) | 2018-03-26 | 2018-03-26 | Super-power superconducting energy transfer resistor matrix based on air cooling heat dissipation |
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| CN108666061A CN108666061A (en) | 2018-10-16 |
| CN108666061B true CN108666061B (en) | 2020-09-01 |
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| CN201810251062.8A Active CN108666061B (en) | 2018-03-26 | 2018-03-26 | Super-power superconducting energy transfer resistor matrix based on air cooling heat dissipation |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110634645A (en) * | 2019-09-29 | 2019-12-31 | 中国科学院合肥物质科学研究院 | Adjustable ultra-high-power pulse reactor for superconducting magnet quench protection |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101916634A (en) * | 2010-08-03 | 2010-12-15 | 荣信电力电子股份有限公司 | Self-cooled ultrahigh power resistor |
| CN203311952U (en) * | 2013-05-30 | 2013-11-27 | 杨协范 | Locomotive brake resistor device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001110626A (en) * | 1999-10-12 | 2001-04-20 | Mitsubishi Electric Corp | Superconducting magnet |
| CN201829280U (en) * | 2010-10-26 | 2011-05-11 | 上海鹰峰电子科技有限公司 | Wind power low-voltage ride-through protective resistor |
| CN204010874U (en) * | 2014-08-15 | 2014-12-10 | 株洲南车奇宏散热技术有限公司 | High-power naturally cooling brake resistance |
| CN205881608U (en) * | 2016-06-23 | 2017-01-11 | 安徽功率电气有限公司 | Brake resistance ware for diesel locomotive |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101916634A (en) * | 2010-08-03 | 2010-12-15 | 荣信电力电子股份有限公司 | Self-cooled ultrahigh power resistor |
| CN203311952U (en) * | 2013-05-30 | 2013-11-27 | 杨协范 | Locomotive brake resistor device |
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