CN102394269A - Framework for superconducting switch and non-inductive winding method - Google Patents
Framework for superconducting switch and non-inductive winding method Download PDFInfo
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- CN102394269A CN102394269A CN2011101718538A CN201110171853A CN102394269A CN 102394269 A CN102394269 A CN 102394269A CN 2011101718538 A CN2011101718538 A CN 2011101718538A CN 201110171853 A CN201110171853 A CN 201110171853A CN 102394269 A CN102394269 A CN 102394269A
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Abstract
Description
技术领域 technical field
本发明涉及一种用于超导开关的骨架及无感绕制方法。The invention relates to a framework for a superconducting switch and a non-inductive winding method.
背景技术 Background technique
超导开关是并联于超导磁体两端,实现超导磁体闭环运行的重要部件,具有断开和导通两种工作状态,分别对应于超导开关由超导态转变为正常态(由无阻状态转变为有阻状态)和由正常态转变为超导态(由有阻状态转变为无阻状态)。The superconducting switch is an important part connected in parallel to both ends of the superconducting magnet to realize the closed-loop operation of the superconducting magnet. state into a hindered state) and from a normal state to a superconducting state (from a hindered state to an unimpeded state).
由于闭环回路中的超导开关仅是利用其阻抗效应,因此超导开关需要制作成无感线圈,以消除其对电路和环境的感抗影响,使其感应系数为零或尽量接近于零。制作超导开关的关键技术是性能优良的无感线圈的结构设计和绕制工艺,因此无感线圈的绕制方法就影响和决定了超导开关的性能。Since the superconducting switch in the closed-loop circuit only uses its impedance effect, the superconducting switch needs to be made into a non-inductive coil to eliminate its inductive reactance to the circuit and the environment, so that its inductance is zero or as close to zero as possible. The key technology for making superconducting switches is the structural design and winding process of non-inductive coils with excellent performance. Therefore, the winding method of non-inductive coils affects and determines the performance of superconducting switches.
中国专利CN1056245C中公开的无感线圈绕制方法是把用于绕制的一段导线头尾对折,从折合处同时进行绕制,这种绕制方法对于普通的通电导线是实用的,而对于弹性较大的粗硬超导线,特别是多股超导线制成的绞缆来说,对折处曲率半径较大,不易固定,线圈匝间不能紧密排列,且超导线在对折过程中会有被折断的隐患存在。中国专利CN1095591C提出了一种层间换向反转单绕法进行超导开关的无感绕制,该方法绕制的无感线圈为偶数层,且至少为两层;对于总层数是否能被4除尽的两种情况,正向绕制和反向绕制的顺序不同,且匝数要根据情况不同而有所变化,因此该方法存在很大的局限性,且绕制过程较复杂。The non-inductive coil winding method disclosed in the Chinese patent CN1056245C is to fold a section of wire used for winding in half, and wind it simultaneously from the folded place. This winding method is practical for ordinary energized wires, but for elastic Larger thick and rigid superconducting wires, especially twisted cables made of multi-strand superconducting wires, have a large radius of curvature at the folding point, are not easy to fix, and the coil turns cannot be closely arranged, and the superconducting wires may be broken during the folding process. hidden dangers exist. Chinese patent CN1095591C proposes a non-inductive winding of superconducting switches by an interlayer reversing single-winding method. The non-inductive coil wound by this method has an even number of layers, and at least two layers; whether the total number of layers can be In the two cases divisible by 4, the order of forward winding and reverse winding is different, and the number of turns will vary according to the situation, so this method has great limitations, and the winding process is more complicated .
发明内容 Contents of the invention
本发明的目的是提出一种适用于粗硬超导线,特别是多股超导缆线的超导开关骨架及无感绕制方法,具体的说是一种以分离式骨架为基础的双绕方法。The purpose of the present invention is to propose a superconducting switch frame and non-inductive winding method suitable for thick superconducting wires, especially multi-strand superconducting cables, specifically a double-wound switch based on a separate frame. method.
本发明超导开关的无感绕制是以一种分离骨架的形式实现的,骨架由一端带有法兰的圆柱筒和圆形端板两部分组成,圆柱筒无法兰的一端刻有S型凹槽,凹槽宽度和深度与导线线径相同,骨架的圆形端板用压接螺钉与圆柱筒无法兰的一端压紧连接成一体形成超导开关骨架。The non-inductive winding of the superconducting switch of the present invention is realized in the form of a separated skeleton. The skeleton is composed of a cylindrical tube with a flange at one end and a circular end plate. The end of the cylindrical tube without a flange is engraved with an S shape. The groove, the width and depth of the groove are the same as the diameter of the wire, and the circular end plate of the skeleton is connected with the end of the cylinder without flange by crimping screws to form a superconducting switch skeleton.
本发明中绕制的超导开关既可用于传导冷却式超导磁体,也可用于液氦浸泡式超导磁体。一般传导冷却式超导开关骨架选用金属材料,如黄铜、紫铜、不锈钢等;液氦浸泡式超导开关骨架选用非金属绝缘材料,如环氧玻璃钢,聚四氟乙烯、胶木等等。对于金属骨架,在绕制前需要先对骨架做绝缘处理,如喷涂四氟膜,粘贴聚酰亚胺薄膜等。The wound superconducting switch in the present invention can be used for both conduction cooling superconducting magnets and liquid helium soaking superconducting magnets. Generally, the conduction-cooled superconducting switch frame is made of metal materials, such as brass, copper, stainless steel, etc.; the liquid helium-immersed superconducting switch frame is made of non-metallic insulating materials, such as epoxy glass steel, polytetrafluoroethylene, bakelite, etc. For the metal frame, it is necessary to insulate the frame before winding, such as spraying PTFE film, pasting polyimide film, etc.
本发明从超导线的中点处开始绕制,超导线的中点对折部分嵌入在骨架的S型凹槽内,凹槽有一定的曲率半径,凹槽两端的出口是很平滑的圆弧面,绕制时不会对超导线造成损伤,且超导线没有被折断的隐患。超导线嵌入S型凹槽后,将圆形端板用压接螺钉与圆柱筒无法兰的一端连在一起压紧固定,超导线的中点经过S型凹槽后,头尾两段的绕制方向相同,然后在同样的绕制张力下同时并列进行双绕。用此方法绕制的超导开关线圈每层的导线之间排列紧密整齐,且没有层数的限制,奇数层、偶数层均可。In the present invention, winding starts from the midpoint of the superconducting wire, and the half-folded part of the superconducting wire is embedded in the S-shaped groove of the skeleton. The groove has a certain radius of curvature, and the outlets at both ends of the groove are very smooth arc surfaces. , will not cause damage to the superconducting wire during winding, and there is no hidden danger of the superconducting wire being broken. After the superconducting wire is embedded in the S-shaped groove, the circular end plate is connected with the flangeless end of the cylindrical tube with crimping screws and pressed and fixed. The winding direction is the same, and then double winding is performed side by side at the same time under the same winding tension. The conductive wires of each layer of the superconducting switch coil wound by this method are arranged closely and neatly, and there is no limit to the number of layers, either odd or even layers.
本发明的超导开关无感绕制方法对于超导线的形状没有限制,既可以是圆形截面超导线,也可以是矩形截面超导线。The non-inductive winding method of the superconducting switch of the present invention has no limitation on the shape of the superconducting wire, which can be either a circular cross-section superconducting wire or a rectangular cross-section superconducting wire.
附图说明 Description of drawings
图1是超导开关分离式骨架的示意图,图中:1圆柱筒,2S型凹槽,3圆形端板;Fig. 1 is a schematic diagram of a separated skeleton of a superconducting switch, in which: 1 cylinder, 2 S-shaped groove, 3 circular end plate;
图2是根据本发明实施例的超导开关绕制示意图,图中:4超导线,5压接螺钉。Fig. 2 is a schematic diagram of superconducting switch winding according to an embodiment of the present invention, in the figure: 4 superconducting wires, 5 crimping screws.
具体实施方式 Detailed ways
以下结合附图和具体实施方式进一步说明本发明。The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
本实施例以圆形截面超导线为例,如图1所示,本发明的分离式超导开关骨架由一端带法兰的圆柱筒1和圆形端板3组成,所述的圆柱筒1无法兰的一端刻有S型凹槽2,S型凹槽2用来嵌入超导线,使超导线头尾的绕制方向一致,实现双绕;所述的圆形端板3是超导开关骨架的另一个法兰,与圆柱筒1无法兰的一端连接在一起形成超导开关骨架。In this embodiment, a superconducting wire with a circular cross section is taken as an example. As shown in FIG. The end without the flange is engraved with an S-
如图2所示,将超导线4的中点段嵌入S型凹槽2后,用低温环氧胶填满S型凹槽2的空隙,以固定超导线4,然后将圆形端板3用压接螺钉5与骨架的圆柱筒1无法兰的一端连在一起压紧固定,超导线5的中点经过S型凹槽2后,头尾两段的绕制方向相同,然后在同样的绕制张力下即可同时并列进行双绕。用此方法绕制的超导开关线圈每层的导线之间排列紧密整齐,且没有层数的限制,奇数层偶数层均可。As shown in Figure 2, after inserting the midpoint section of the
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Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102735974A (en) * | 2012-06-29 | 2012-10-17 | 中国科学院电工研究所 | Coil for measuring quench propagation speed of superconductive wire |
CN103745826A (en) * | 2013-12-27 | 2014-04-23 | 苏州恒听电子有限公司 | Manufacturing method of inductance coil |
CN104579280A (en) * | 2014-11-18 | 2015-04-29 | 中国科学院电工研究所 | Superconductive switch for conducting cooling superconductive magnet |
CN111243819A (en) * | 2020-03-13 | 2020-06-05 | 中国科学院电工研究所 | NbTi and Nb3Superconducting joint of Sn superconducting wire and preparation method thereof |
CN111508682A (en) * | 2020-02-28 | 2020-08-07 | 北京交通大学 | A composite skeleton structure for superconducting current limiter |
CN111668012A (en) * | 2020-05-26 | 2020-09-15 | 东部超导科技(苏州)有限公司 | Automatic device for winding non-inductive coil and winding method |
CN114137456A (en) * | 2021-11-30 | 2022-03-04 | 西部超导材料科技股份有限公司 | A kind of winding device and winding method of sample skeleton for critical current testing of superconducting wire |
EP4395524A1 (en) | 2022-12-30 | 2024-07-03 | Siemens Healthcare Limited | Non-inductive coil assembly and manufacturing method therefor |
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CN102054623A (en) * | 2010-11-03 | 2011-05-11 | 中国科学院电工研究所 | Thermally-controlled superconducting switch |
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US3200368A (en) * | 1963-04-05 | 1965-08-10 | Avco Corp | Superconductive connector |
JPH01298706A (en) * | 1988-05-27 | 1989-12-01 | Fuji Electric Co Ltd | Superconducting coil manufacturing method |
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Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102735974A (en) * | 2012-06-29 | 2012-10-17 | 中国科学院电工研究所 | Coil for measuring quench propagation speed of superconductive wire |
CN103745826A (en) * | 2013-12-27 | 2014-04-23 | 苏州恒听电子有限公司 | Manufacturing method of inductance coil |
CN104579280A (en) * | 2014-11-18 | 2015-04-29 | 中国科学院电工研究所 | Superconductive switch for conducting cooling superconductive magnet |
CN111508682A (en) * | 2020-02-28 | 2020-08-07 | 北京交通大学 | A composite skeleton structure for superconducting current limiter |
CN111243819A (en) * | 2020-03-13 | 2020-06-05 | 中国科学院电工研究所 | NbTi and Nb3Superconducting joint of Sn superconducting wire and preparation method thereof |
CN111668012A (en) * | 2020-05-26 | 2020-09-15 | 东部超导科技(苏州)有限公司 | Automatic device for winding non-inductive coil and winding method |
CN114137456A (en) * | 2021-11-30 | 2022-03-04 | 西部超导材料科技股份有限公司 | A kind of winding device and winding method of sample skeleton for critical current testing of superconducting wire |
EP4395524A1 (en) | 2022-12-30 | 2024-07-03 | Siemens Healthcare Limited | Non-inductive coil assembly and manufacturing method therefor |
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