CN102520321B - Detection equipment used for detecting insulating property of insulating layer of superconducting tape - Google Patents
Detection equipment used for detecting insulating property of insulating layer of superconducting tape Download PDFInfo
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- CN102520321B CN102520321B CN201110412664.5A CN201110412664A CN102520321B CN 102520321 B CN102520321 B CN 102520321B CN 201110412664 A CN201110412664 A CN 201110412664A CN 102520321 B CN102520321 B CN 102520321B
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Abstract
The invention discloses detection equipment used for detecting an insulating property of an insulating layer of a superconducting tape. The detection equipment comprises: a liquid nitrogen container, a tape sending disc, a first motor, an electrode assembly, a first fixed pulley, a second fixed pulley, a take-up disc and a second motor, wherein the first motor is used to drive the tape sending disc to rotate; the superconducting tape which is from the tape sending disc passes through the first fixed pulley and is delivered to the electrode assembly; the superconducting tape which is from the electrode assembly passes through the second fixed pulley; the superconducting tape which is from the second fixed pulley is wound into the take-up disc; the second motor is used to drive the take-up disc to rotate. A superconducting tape body is connected with a grounding system so as to possess a ground potential. A controller controls the first motor and the second motor so that the first motor and the second motor rotate as a predetermined speed. The superconducting tape passes through the electrode subassembly as a constant speed in the liquid nitrogen of the liquid nitrogen container so that the insulating property of the insulating layer of the superconducting tape can be continuously detected. By using the detection equipment of the invention, detection efficiency and a detection speed of the insulating property of the superconducting tape can be greatly increased.
Description
Technical field
The present invention relates to superconduction electrical technology field, particularly, the present invention relates to a kind of checkout equipment of insulating property of the insulation course for detection of superconducting tape.
Background technology
Along with the fast development of Superconducting Power Technology, the superconducting power devices such as high tc superconducting fault current limiter, superconductive energy storage system, high-temperature superconductive cable, high-temperature superconductive transformer and high-temperature superconducting motor had become the emphasis of development in recent years.These superconducting power device model machines are succeeded in developing respectively, and have entered the grid-connected demonstrating running stage comprehensively.In the world, portioned product has been realized commercialization, estimates future soon, and superconducting power device will enter the industrialized development stage.
Except high-temperature superconductive cable, the core component of most superconducting power device is all high-temperature superconducting magnet.The insulation system complexity of high-temperature superconducting magnet, need to consider insulation and phase insulation etc. between coil turn-to-turn insulation, cake.At present, also not developing in the world special low-temperature insulation material, is all the insulating film material that screening is suitable for cryogenic applications from conventional insulation film substantially.Generally conventionally adopt along the axial wrapped polyimide film tape of superconductive tape in the world, or adopt the methods such as coated insullac to improve the insulation system of superconducting tape, to meet the dielectric strength requirement of high-temperature superconducting magnet.
In the prior art, under low temperature, the test of insulating property is generally for insulation test piece, as patent documentation CN 101387672B discloses a kind of high-temperature superconductive cable insulation electrical characteristic test device, it comprises the low-temperature pressure thermally insulated container that is provided with cover plate, cover plate center is provided with a hole, is used for through insulating sleeve; Vacuum adapter is housed on cover plate and is used for adding the connecting pipe of liquid nitrogen, stressed connecting pipe, in described low-temperature pressure thermally insulated container, be provided with test electrode, in insulating sleeve, be provided with a conducting rod, the upper end of this conducting rod is used for connecting high pressure, lower end connecting test electrode high-pressure side.
In the disclosed insulation electrical characteristic test device of above-mentioned patent documentation, proving installation is only for insulating material test piece, and sample size can not exceed the inwall size of low-temperature pressure thermally insulated container.Thereby, cannot meet the long continuous coverage apart from superconducting strip material insulation performance.Along with the maximization of superconducting power device and the development of industrialization, the continuous detecting of belt material of high temperature superconduct insulating property will be technical barrier urgently to be resolved hurrily.
Summary of the invention
In view of the defect of prior art, the object of the invention is to the checkout equipment of the insulating property of developing a kind of insulation course for detection of superconducting tape, it can be under liquid nitrogen environment
The insulating property of the insulation course to superconducting tape are carried out continuous coverage.
According to a first aspect of the invention, a kind of checkout equipment of insulating property of the insulation course for detection of superconducting tape is provided, wherein said superconducting tape comprises superconductive tape body and the insulation course being coated on around this superconductive tape body, and described checkout equipment comprises: power supply; High voltage transformer, the input end of described high voltage transformer is electrically connected with the output terminal of described power supply, and described high voltage transformer is for obtaining the voltage higher than the output voltage of described power supply; Water resistance, the input end of described water resistance is electrically connected with the output terminal of described high voltage transformer, and described water resistance has predetermined resistance with restriction dash current; Electrode assemblie, the input end of described electrode assemblie is electrically connected with the output terminal of described water resistance, and described electrode assemblie is for applying predetermined detection voltage to superconducting tape to be detected; High-voltage divider, the input end of described high-voltage divider is electrically connected with the output terminal of described water resistance and the input end of described electrode assemblie respectively; Data collecting card, the input end of described data collecting card is connected with the output terminal of described high-voltage divider, for gathering the output voltage of described high-voltage divider; Earthed system, described earthed system is connected with described superconductive tape body, to make superconductive tape body possess earthing potential, and described earthed system is connected with described high-voltage divider and described data collecting card, to provide earthing potential to described high-voltage divider and described data collecting card; Controller, described controller is connected with the output terminal of described data collecting card, and for receiving the output data of described data collecting card, and described controller is also connected with described power supply, for controlling the output voltage of described power supply; And computing machine, described computing machine is connected with described controller, for input operation personnel's steering order and the detection data of demonstration superconducting strip material insulation performance.The checkout equipment of the insulating property of the insulation course for detection of superconducting tape of the present invention is characterised in that, described checkout equipment also comprises: liquid nitrogen container, accommodates liquid nitrogen in the inside of described liquid nitrogen container; Take-off reel, described take-off reel is fixed on the top of described liquid nitrogen container, and superconducting tape to be detected is wound on this take-off reel; The first motor, described the first motor is connected with described take-off reel, for driving described take-off reel rotation; The first fixed pulley, described the first fixed pulley is fixed on described liquid nitrogen container inside and is immersed in liquid nitrogen, reel through described the first fixed pulley from described take-off reel superconducting tape out, and carry to described electrode assemblie, wherein said electrode assemblie is also fixed on described liquid nitrogen container inside and is immersed in liquid nitrogen; The second fixed pulley, described the second fixed pulley is fixed on described liquid nitrogen container inside and is immersed in liquid nitrogen, reels through described the second fixed pulley from described electrode assemblie superconducting tape out; Machine reel, described machine reel is fixed on the top of described liquid nitrogen container, is wound up into described machine reel from described the second fixed pulley superconducting tape out; And second motor, described the second motor is connected with described machine reel, be used for driving machine reel rotation, wherein, described controller is also connected with described the first motor and described the second motor, be used for controlling described the first motor and described the second motor rotates at a predetermined velocity, make in the liquid nitrogen of superconducting tape in described liquid nitrogen container, with constant speed by described electrode assemblie, thereby the insulating property of the insulation course to superconducting tape detect continuously.
According to technique scheme of the present invention, can under liquid nitrogen environment, the insulating property of the insulation course to superconducting tape carry out continuous coverage, thereby can greatly improve detection efficiency and the speed of superconducting strip material insulation performance.
Preferably, described electrode assemblie is made up of the 3rd fixed pulley and the 4th fixed pulley, described the 3rd fixed pulley and the 4th fixed pulley are fixed on the inside of described liquid nitrogen container by support, the periphery of described the 3rd fixed pulley has groove shapes, to form a recess space, this recess space can match with detected superconducting tape, the cylindrical shape of periphery of described the 4th fixed pulley, and, in the testing process of superconducting tape, described the 4th fixed pulley engages with described the 3rd fixed pulley, thereby detected superconducting tape contacts with the periphery of described the 3rd fixed pulley and passes above-mentioned recess space with the periphery of described the 4th fixed pulley.
According to technique scheme of the present invention, can carry out successional insulating property detection to the whole insulation course being coated in superconductive tape body periphery simultaneously, thereby can improve accuracy of detection.
Preferably, described electrode assemblie is made up of the first electrode and the second electrode, described the first electrode and the second electrode are fixed on the inside of described liquid nitrogen container by support, described the first electrode has groove shapes, to form a recess space, described the second electrode is writing board shape, and, in the testing process of superconducting tape, described the first electrode engages with described the second electrode, thereby detected superconducting tape is through above-mentioned recess space, wherein said superconducting tape and described the first electrode and the second electrode are spaced a predetermined distance from, and arrange between two parties in above-mentioned recess space.
According to technique scheme of the present invention, can carry out successional insulating property detection to the whole insulation course being coated in superconductive tape body periphery simultaneously, thereby can improve accuracy of detection.And then, for detection of the first electrode and the second electrode and detected superconducting tape between do not exist directly and contact, thereby can realize the insulating property of heed contacted measure superconducting tape, can reduce and prevent like this damage of measuring process for superconducting tape.
Preferably, described electrode assemblie comprises the first electrode and the second electrode, described the first electrode and the second electrode are fixed on the inside of described liquid nitrogen container by support, with described the second electrode, a first opposed fixed pulley is relatively set, with described the first electrode, a second opposed fixed pulley is relatively set, described the first opposed fixed pulley and the second opposed fixed pulley are fixed on the inside of described liquid nitrogen container by described support, be conducted through described the first opposed fixed pulley and carry to described the second fixed pulley by described the second opposed fixed pulley from described the first fixed pulley superconducting tape out, described the first electrode has groove shapes, to form a recess space, and, in the testing process of superconducting tape, be wound on superconducting tape and described the first electrode in the periphery of described the second opposed fixed pulley spaced a predetermined distance from, and through above-mentioned recess space, described the second electrode is writing board shape, in the testing process of superconducting tape, be wound on superconducting tape and described the second electrode in the periphery of described the first opposed fixed pulley spaced a predetermined distance from.
According to technique scheme of the present invention, can carry out successional insulating property detection to the whole insulation course being coated in superconductive tape body periphery, thereby can improve accuracy of detection.And then, there is for the first opposed fixed pulley and the second opposed fixed pulley of the detected superconducting tape of reeling the effect that limits detected superconducting tape position, thereby can detect insulating property more accurately.And then, for detection of the first electrode and the second electrode and detected superconducting tape between do not exist directly and contact, thereby can reduce and prevent the damage of measuring process for superconducting tape.
Preferably, described take-off reel and described machine reel are each to be formed by inner disk and the outer ring portion that is fixed in the periphery of this inner disk, wherein this inner disk is made up of insulating material, described outer ring portion is made up of metal material, superconducting tape is wrapped in described outer ring portion, and the outer ring portion of a dish in described take-off reel and described machine reel is electrically connected with the superconductive tape body of described superconducting tape, and be electrically connected with described earthed system, to make described superconductive tape body possess earthing potential.
According to technique scheme of the present invention, the inner disk of described take-off reel and described machine reel is made up of insulating material, thereby in testing process, if the insulation course of superconducting tape is by high electrical breakdown, the inner disk of insulating material can prevent that dash current from destroying the first motor and the second motor that are connected with described machine reel with described take-off reel.
Preferably, along the transport path of superconducting tape, an insulating material lapping device is set between described the second fixed pulley and described machine reel, this insulating material lapping device is fixed on the top of described liquid nitrogen container, and be connected with described controller, in the testing process of superconducting tape, the insulating property that the insulation course of superconducting tape detected when the data of described controller based on the output of described data collecting card occur when abnormal, described power supply controlled immediately by described controller so that the output voltage of described power supply is reduced to zero, and control the rotation of described the first motor and described the second motor, be transported to described insulating material lapping device with the abnormal position of insulating property that makes superconducting tape, then insulating material lapping device described in described controller control, so that the abnormal position of the insulating property of described superconducting tape is held to insulating material again.
According to technique scheme of the present invention, can be after the abnormal position of the insulating property that superconducting tape detected, in time, exactly the abnormal position of the insulating property of this superconducting tape is held again, make it possess the insulating property of expectation.
Preferably, after the abnormal position of the insulating property of described superconducting tape is held to insulating material again, described in described controller control, the first motor and described the second motor are so that its reverse rotation, thereby the superconducting tape position that again holds insulating material is carried and got back to described electrode assemblie, and then control described the first motor and described the second motor so that it is rotated in the forward again, whether the insulating property that again detect the superconducting tape position that again holds insulating material are normal.
According to technique scheme of the present invention, can again detect the superconducting tape position that again holds insulating material in time, thereby can improve detection efficiency.
From below with reference to being readily appreciated that above-mentioned feature and advantage of the present invention the described preferred embodiment of accompanying drawing.
Accompanying drawing explanation
Fig. 1 is the viewgraph of cross-section of superconducting tape;
Fig. 2 is according to the general illustration of the first embodiment of the checkout equipment of the insulating property of the insulation course for detection of superconducting tape of the present invention;
Fig. 3 is the electrode assemblie cut open along the A-A line in Fig. 2 and the cut-open view of superconducting tape;
Fig. 4 is according to the general illustration of the second embodiment of the checkout equipment of the insulating property of the insulation course for detection of superconducting tape of the present invention;
Fig. 5 is the electrode assemblie cut open along the B-B line in Fig. 4 and the cut-open view of superconducting tape;
Fig. 6 is according to the general illustration of the 3rd embodiment of the checkout equipment of the insulating property of the insulation course for detection of superconducting tape of the present invention;
Fig. 7 is the electrode assemblie cut open along the C-C line in Fig. 6 and the cut-open view of superconducting tape;
Fig. 8 is the electrode assemblie cut open along the D-D line in Fig. 6 and the cut-open view of superconducting tape.
Embodiment
Describe the preferred technical solution of the present invention in detail below with reference to accompanying drawing.
Fig. 1 is the viewgraph of cross-section of superconducting tape.As known in the art, superconducting tape 3 is flat elongate in shape conventionally, and comprise superconductive tape body 32 and be coated on this superconductive tape body 32 insulation course 31 around, wherein superconductive tape body 32 can be made up of various suitable superconductors known in the art, and insulation course 31 is wrapped in superconductive tape body 32 around to electrical isolation is provided, insulation course 31 can be made up of various suitable insulative materials, for example, can be made up of polyimide.The invention provides the checkout equipment that detects superconducting strip material insulation performance.To several embodiment of checkout equipment of the present invention be described below.
The first embodiment
Fig. 2 is according to the general illustration of the first embodiment of the checkout equipment of the insulating property of the insulation course for detection of superconducting tape of the present invention.Fig. 3 is the electrode assemblie cut open along the A-A line in Fig. 2 and the cut-open view of superconducting tape.
As Figure 2-3, the checkout equipment of the insulating property of the insulation course for detection of superconducting tape of the present invention, comprising: power supply 18, and this power supply is for providing the voltage that detects use; High voltage transformer 17, the input end of described high voltage transformer 17 is electrically connected with the output terminal of described power supply 18, and the output voltage that described high voltage transformer 17 can converting power source 18, for obtaining the voltage higher than the output voltage of described power supply 18; Water resistance 16, the input end of described water resistance 16 is electrically connected with the output terminal of described high voltage transformer 17, and described water resistance 16 has predetermined resistance with restriction dash current, water resistance 16 can be by packing distilled water in plexi-glass tubular into and form, it generally has larger resistance value, thereby larger dash current in can limiting circuit; Electrode assemblie, described electrode assemblie comprises the 3rd fixed pulley 1 and the 4th fixed pulley 2 in the embodiment in figure 1, the input end of described electrode assemblie is electrically connected with the output terminal of described water resistance 16, and described electrode assemblie is for applying predetermined detection voltage to superconducting tape to be detected 3; High-voltage divider 14, the input end of described high-voltage divider 14 is electrically connected with the output terminal of described water resistance 16 and the input end of described electrode assemblie respectively, in the embodiment in figure 1, the input end of high-voltage divider 14 is electrically connected with the output terminal of described water resistance 16 and the 3rd fixed pulley 1 and the 4th fixed pulley 2 respectively; Data collecting card 13, the input end of described data collecting card 13 is connected with the output terminal of described high-voltage divider 14, for gathering the output voltage of described high-voltage divider 14; Earthed system 15, described earthed system 15 is connected to the earth so that zero potential to be provided, and described earthed system 15 is connected with described superconductive tape body 32, to make superconductive tape body 32 possess earthing potential, and described earthed system 15 is connected with described high-voltage divider 14 and described data collecting card 13, to provide earthing potential to described high-voltage divider 14 and described data collecting card 13; Controller 20, described controller 20 is connected with the output terminal of described data collecting card 13, and for receiving the output data of described data collecting card, and described controller 20 is also connected with described power supply 18, for controlling the output voltage of described power supply 18; And computing machine 21, described computing machine 21 is connected with described controller 20, and described computing machine 21 is for the various real-time detector datas of input operation personnel's steering order and demonstration superconducting strip material insulation performance.
The checkout equipment of the insulating property of the insulation course for detection of superconducting tape of the present invention also comprises: liquid nitrogen container 7, accommodates liquid nitrogen in the inside of described liquid nitrogen container 7; Take-off reel 57, described take-off reel 57 is fixed on the top of described liquid nitrogen container 7, and superconducting tape 3 to be detected is wound on this take-off reel 57; The first motor 12, described the first motor 12 is connected with described take-off reel 57, for driving described take-off reel 57 to rotate; The first fixed pulley 6, described the first fixed pulley 6 is fixed on described liquid nitrogen container inside and is immersed in liquid nitrogen, reel downwards from described take-off reel 57 superconducting tape out along vertical direction through described the first fixed pulley 6, and carry to the 3rd fixed pulley 1 as described electrode assemblie and the 4th fixed pulley 2, wherein said the 3rd fixed pulley 1 and the 4th fixed pulley 2 are fixed on the inside of described liquid nitrogen container 7 and are immersed in liquid nitrogen by support 4; The second fixed pulley 5, described the second fixed pulley 5 is fixed on described liquid nitrogen container inside and is immersed in liquid nitrogen, reels through described the second fixed pulley 5 from described the 3rd fixed pulley 1 and the 4th fixed pulley 2 superconducting tape out; Machine reel 58, described machine reel 58 is fixed on the top of described liquid nitrogen container 7, is wound up into described machine reel 58 from described the second fixed pulley 5 superconducting tape out; And second motor 19, described the second motor 19 is connected with described machine reel 58, for driving machine reel 58 to rotate.Described controller 20 is also connected with described the first motor 12 and described the second motor 19, be used for controlling described the first motor 12 and described the second motor 19 rotates at a predetermined velocity, make in the liquid nitrogen of superconducting tape 3 in described liquid nitrogen container 7, pass through described the 3rd fixed pulley 1 and the 4th fixed pulley 2 with constant speed, thereby the insulating property of the insulation course 31 to superconducting tape 3 detect continuously.
As shown in Figure 3, the periphery of described the 3rd fixed pulley 1 has groove shapes, and to form a recess space, this recess space can match in shape with detected superconducting tape 3.The cylindrical shape of periphery of described the 4th fixed pulley 2.And, in the testing process of superconducting tape, described the 4th fixed pulley 2 engages with described the 3rd fixed pulley 1, thereby the above-mentioned recess space that forms sealing, detected superconducting tape contacts with the periphery of described the 3rd fixed pulley 1 and passes above-mentioned recess space with the periphery of described the 4th fixed pulley 2.Described the 3rd fixed pulley 1 is supported on support 4 by wheel shaft 22, and described the 4th fixed pulley 2 is supported on support 4 by wheel shaft 23.
Described take-off reel 57 and described machine reel 58 are each to be formed by inner disk 10 and the outer ring portion 9 that is fixed in the periphery of this inner disk 10.This inner disk 10 is made up of insulating material, described outer ring portion 9 is made up of metal material, superconducting tape is wrapped in described outer ring portion 9, and the outer ring portion 9 of described take-off reel 57 is electrically connected with the superconductive tape body 32 that is wrapped in the superconducting tape in this outer ring portion 9, and be electrically connected with described earthed system 15, to make described superconductive tape body 32 possess earthing potential.According to technique scheme of the present invention, the inner disk of described take-off reel 57 and described machine reel 58 is made up of insulating material, thereby in testing process, if the insulation course of superconducting tape 3 is by high electrical breakdown, the inner disk of insulating material can prevent that dash current from destroying the first motor 12 and the second motor 19 that are connected with described machine reel 58 with described take-off reel 57.
The output shaft that is fixed with wheel shaft 11, the second motors 19 in the central authorities of described machine reel 58 can be fixedly connected with this wheel shaft 11, for driving described machine reel 58 to rotate.Similarly, be also fixed with a wheel shaft in the central authorities of described take-off reel 57, the output shaft of the first motor 12 can be fixedly connected with this wheel shaft, for driving described take-off reel 57 to rotate.
Certainly, also can utilize machine reel 58 to realize the ground connection of the superconductive tape body of superconducting tape 3.Concrete, can make the outer ring portion 9 of described machine reel 58 be electrically connected with the superconductive tape body 32 that is wrapped in the superconducting tape in this outer ring portion 9, and be electrically connected with described earthed system 15, to make described superconductive tape body 32 possess earthing potential.Earthed system 15 and being electrically connected of outer ring portion 9 can utilize variety of way known in the art to realize, for example, can adopt brush to be grounded being electrically connected of system 15 and outer ring portion 9.
In testing process, if the insulation course 31 of superconducting tape 3 meets predetermined insulating requirements, the voltage being applied on described the first electrode 1 and the second electrode 2 will can not make this insulation course 31 discharge; If the insulating property of the insulation course 31 of superconducting tape 3 do not meet predetermined insulating requirements, the voltage being applied on described the first electrode 1 and the second electrode 2 will make this insulation course 31 discharge, now the voltage on described the first electrode 1 and the second electrode 2 will sharply reduce, data collecting card 13 collects the sharply variation of this voltage by high-voltage divider 14, controller 20 is known the sharply variation of this voltage thus, thereby superconducting strip material insulation property abnormality detected.Now, controller 20 will be controlled power supply 18 immediately makes its output voltage be reduced to zero, to protect a whole set of checkout equipment, and subsequent treatment is carried out in superconducting strip material insulation property abnormality position.
In the checkout equipment of the insulating property of the insulation course for detection of superconducting tape of the present invention, can be along the transport path of superconducting tape 3, between described the second fixed pulley 5 and described machine reel 58, an insulating material lapping device 8 is set, this insulating material lapping device 8 is fixed on the top of described liquid nitrogen container 7, and is connected with described controller 20.In the testing process of superconducting tape, the data of exporting based on described data collecting card 13 when described controller 20 and insulating property that the insulation course 31 of superconducting tape 3 detected occur when abnormal, described power supply 18 controlled immediately by described controller 20 so that the output voltage of described power supply 18 is reduced to zero, and control the rotation of described the first motor 12 and described the second motor 19, be transported to described insulating material lapping device 8 with the abnormal position of insulating property that makes superconducting tape 3, then described controller 20 is controlled described insulating material lapping device 8, so that the abnormal position of the insulating property of described superconducting tape 3 is held to insulating material again.The insulation tep reel that this insulating material lapping device 8 can be by being fixed on support on liquid nitrogen container 7, be fixed on two mechanical arms on this support and be fixed on this mechanical arm forms, wherein said mechanical arm rotates around superconducting tape under the control of controller, thereby realizes holding of superconducting strip material insulation layer.
According to technique scheme of the present invention, can be after the abnormal position of the insulating property that superconducting tape detected, in time, exactly the abnormal position of the insulating property of this superconducting tape is held again, make it possess the insulating property of expectation.
After the abnormal position of the insulating property of described superconducting tape 3 is held to insulating material again, described controller 20 is controlled described the first motor 12 and described the second motor 19 so that its reverse rotation, thereby the superconducting tape position that again holds insulating material is carried and got back to described the 3rd fixed pulley 1 and the 4th fixed pulley 2, and then control described the first motor 12 and described the second motor 19 so that it is rotated in the forward again, whether the insulating property that again detect the superconducting tape position that again holds insulating material are normal.Thus, can again detect the superconducting tape position that again holds insulating material in time, thereby can improve detection efficiency.
In sum, according to technique scheme of the present invention, can detect continuously the insulating property of the insulation course of superconducting tape 3 31.Thus, checkout equipment of the present invention can the insulating property of the insulation course to superconducting tape carry out continuous coverage under liquid nitrogen environment, thereby can greatly improve detection efficiency and the speed of superconducting strip material insulation performance.And checkout equipment of the present invention can carry out successional insulating property detection to the whole insulation course being coated in superconductive tape body periphery, thereby can improve accuracy of detection simultaneously.
The second embodiment
Fig. 4 is according to the general illustration of the second embodiment of the checkout equipment of the insulating property of the insulation course for detection of superconducting tape of the present invention.Fig. 5 is the electrode assemblie cut open along the B-B line in Fig. 4 and the cut-open view of superconducting tape.In the second embodiment of the present invention, the parts identical with above-mentioned the first embodiment have adopted identical Reference numeral to represent.
As shown in Fig. 4-5, the second embodiment of the present invention other parts except the formation difference of electrode assemblie are all identical with above-mentioned the first embodiment.Particularly, in the second embodiment of the checkout equipment of the insulating property of the insulation course for detection of superconducting tape of the present invention, formed by the first electrode 1 ' and the second electrode 2 ' for apply high-tension described electrode assemblie to superconducting tape 3.Described the first electrode 1 ' and the second electrode 2 ' are fixed on the inside of described liquid nitrogen container 7 by support 4 ', superconducting tape 3 passes through between described the first electrode 1 ' and the second electrode 2 ' so that detected.As shown in Figure 5, described the first electrode 1 ' and the second electrode 2 ' are all fixed on support 4 ', and described the first electrode 1 ' has groove shapes, to form a recess space in its underpart; Described the second electrode 2 ' is writing board shape, and, in the testing process of superconducting tape 3, described the first electrode 1 ' engages with described the second electrode 2 ', thereby form the recess space of a sealing, detected superconducting tape 3 is through this recess space, superconducting tape 3 comprising superconductive tape body 32 and insulation course 31 does not contact with the second electrode 2 ' with described the first electrode 1 ', but separate one section of preset distance, because the first electrode 1 ' and the second electrode 2 ' are immersed in liquid nitrogen, so be filled with liquid nitrogen in the space of this preset distance.And described superconducting tape 3 is arranged between two parties in above-mentioned recess space.
In the arrangement of the checkout equipment of the insulating property of the above-mentioned insulation course for detection of superconducting tape, superconducting tape 3 separates one section of preset distance with described the first electrode 1 ' and the second electrode 2 ', and what in the space of this preset distance, fill is liquid nitrogen.Can measure in advance the surge voltage of the liquid nitrogen of preset distance by test.Then, by power supply 18, the voltage of following size is applied on described the first electrode 1 ' and the second electrode 2 ', that is: the voltage of the expectation withstand voltage sum of the insulation course 31 of the surge voltage of the liquid nitrogen of preset distance and superconducting tape 3.In testing process, if the insulation course 31 of superconducting tape 3 meets predetermined insulating requirements, the voltage being applied on described the first electrode 1 ' and the second electrode 2 ' will can not make this insulation course 31 discharge; If the insulating property of the insulation course 31 of superconducting tape 3 do not meet predetermined insulating requirements, the voltage being applied on described the first electrode 1 ' and the second electrode 2 ' will make this insulation course 31 discharge, now the voltage on described the first electrode 1 ' and the second electrode 2 ' will sharply reduce, data collecting card 13 collects the sharply variation of this voltage by high-voltage divider 14, controller 20 is known the sharply variation of this voltage thus, thereby superconducting strip material insulation property abnormality detected.Now, controller 20 will be controlled power supply 18 immediately makes its output voltage be reduced to zero, to protect a whole set of checkout equipment, and subsequent treatment is carried out in superconducting strip material insulation property abnormality position.
According to technique scheme of the present invention, can carry out successional insulating property detection to the whole insulation course 31 being coated in superconductive tape body 32 peripheries simultaneously, thereby can improve accuracy of detection.And then, for detection of the first electrode 1 ' and described the second electrode 2 ' and detected superconducting tape 3 between do not exist directly and contact, thereby can realize the insulating property of heed contacted measure superconducting tape, can reduce and prevent like this damage of measuring process for superconducting tape 3.
The 3rd embodiment
Fig. 6 is according to the general illustration of the 3rd embodiment of the checkout equipment of the insulating property of the insulation course for detection of superconducting tape of the present invention.Fig. 7 is the electrode assemblie cut open along the C-C line in Fig. 6 and the cut-open view of superconducting tape.Fig. 8 is the electrode assemblie cut open along the D-D line in Fig. 6 and the cut-open view of superconducting tape.In the third embodiment of the present invention, the parts identical with above-mentioned the first and second embodiment have adopted identical Reference numeral to represent.
As shown in Fig. 6-8, the third embodiment of the present invention other parts except the layout difference of electrode assemblie are all identical with above-mentioned the second embodiment.Particularly, in the 3rd embodiment of the checkout equipment of the insulating property of the insulation course for detection of superconducting tape of the present invention, comprise the first electrode 1 for apply high-tension described electrode assemblie to superconducting tape 3 " and the second electrode 2 ".Described the first electrode 1 " and the second electrode 2 " by support 4 " be fixed on the inside of described liquid nitrogen container 7.Described the first electrode 1 " and the second electrode 2 " be all immersed in liquid nitrogen, and see the second electrode 2 along the throughput direction of superconducting tape " be arranged on upstream side, the first electrode 1 " be arranged on downstream.With described the second electrode 2 " a first opposed fixed pulley 55 is relatively set; with described the first electrode 1 " a second opposed fixed pulley 56 is relatively set, described the first opposed fixed pulley 55 and the second opposed fixed pulley 56 are by described support 4 " be fixed on the inside of described liquid nitrogen container 7.Be conducted through the bottom of described the first opposed fixed pulley 55 and carry to described the second fixed pulley 5 by the top of described the second opposed fixed pulley 56 from described the first fixed pulley 6 superconducting tape out.Described the first opposed fixed pulley 55 and the second opposed fixed pulley 56 are made up of insulating material, to prevent and the first electrode 1 " and the second electrode 2 " between there is insulation breakdown, cause controller 20 misoperations.
As shown in Figure 7, described the first electrode 1 " there is groove shapes, to form a recess space.And, in the testing process of superconducting tape, be wound on superconducting tape 3 and described the first electrode 1 in the periphery of described the second opposed fixed pulley 56 " and spaced a predetermined distance from, and through above-mentioned recess space.Due to the second opposed fixed pulley 56 and the first electrode 1 " be immersed in liquid nitrogen, so at superconducting tape 3 and described the first electrode 1 " between gap in be filled with liquid nitrogen.
As shown in Figure 8, described the second electrode 2 " be writing board shape, in the testing process of superconducting tape, be wound on superconducting tape 3 and described the second electrode 2 in the periphery of described the first opposed fixed pulley 55 " spaced a predetermined distance from.Due to the first opposed fixed pulley 55 and the second electrode 2 " be immersed in liquid nitrogen, so at superconducting tape 3 and described the second electrode 2 " between gap in be filled with liquid nitrogen.
According to technique scheme of the present invention, can carry out successional insulating property detection to the whole insulation course 31 being coated in superconductive tape body 32 peripheries, thereby can improve accuracy of detection.And then, there is for the first opposed fixed pulley 55 and the second opposed fixed pulley 56 of the detected superconducting tape 3 of reeling the effect that limits detected superconducting tape 3 positions, thereby can detect superconducting strip material insulation performance more accurately.And then, for detection of the first electrode 1 " and the second electrode 2 " and detected superconducting tape 3 between there is not direct pressure contact, thereby can reduce and prevent the damage of measuring process for superconducting tape 3.
For the ordinary skill in the art, can be easy to the details of embodiments of the invention to carry out various modification and improvement.Within these modification and improvement all drop on the scope of design of the present invention.
Claims (7)
1. for detection of the checkout equipments of the insulating property of the insulation course of superconducting tape, wherein said superconducting tape (3) comprises superconductive tape body (32) and is coated on this superconductive tape body (32) insulation course (31) around, and described checkout equipment comprises:
Power supply (18);
High voltage transformer (17), the input end of described high voltage transformer (17) is electrically connected with the output terminal of described power supply (18), and described high voltage transformer (17) is for obtaining than the higher voltage of output voltage of described power supply (18);
Water resistance (16), the input end of described water resistance (16) is electrically connected with the output terminal of described high voltage transformer (17), and described water resistance (16) has predetermined resistance with restriction dash current;
Electrode assemblie (1,2; 1 ', 2 '; 1 ' ', 2 ' '), described electrode assemblie (1,2; 1 ', 2 '; 1 ' ' input end, 2 ' ') is electrically connected with the output terminal of described water resistance (16), described electrode assemblie (1,2; 1 ', 2 '; 1 ' ', 2 ' ') apply predetermined detection voltage for the superconducting tape to be detected (3);
High-voltage divider (14), the input end of described high-voltage divider (14) respectively with output terminal and the described electrode assemblie (1,2 of described water resistance (16); 1 ', 2 '; 1 ' ' input end electrical connection, 2 ' ');
Data collecting card (13), the input end of described data collecting card (13) is connected with the output terminal of described high-voltage divider (14), for gathering the output voltage of described high-voltage divider (14);
Earthed system (15), described earthed system (15) is connected with described superconductive tape body (32), to make superconductive tape body (32) possess earthing potential, and described earthed system (15) is connected with described high-voltage divider (14) and described data collecting card (13), to provide earthing potential to described high-voltage divider (14) and described data collecting card (13);
Controller (20), described controller (20) is connected with the output terminal of described data collecting card (13), for receiving the output data of described data collecting card, and described controller (20) is also connected with described power supply (18), for controlling the output voltage of described power supply (18); And
Computing machine (21), described computing machine (21) is connected with described controller (20), for input operation personnel's steering order and the detection data of demonstration superconducting strip material insulation performance,
It is characterized in that:
Described checkout equipment also comprises:
Liquid nitrogen container (7), accommodates liquid nitrogen in the inside of described liquid nitrogen container (7);
Take-off reel (57), described take-off reel (57) is fixed on the top of described liquid nitrogen container, and superconducting tape to be detected is wound on this take-off reel (57);
The first motor (12), described the first motor (12) is connected with described take-off reel (57), for driving described take-off reel (57) rotation;
The first fixed pulley (6), described the first fixed pulley (6) is fixed on described liquid nitrogen container inside and is immersed in liquid nitrogen, reels through described the first fixed pulley (6) from described take-off reel (57) superconducting tape out, and to described electrode assemblie (1,2; 1 ', 2 '; 1 ' ', 2 ' ') carry wherein said electrode assemblie (1,2; 1 ', 2 '; 1 ' ', 2 ' ') be also fixed on described liquid nitrogen container inside and be immersed in liquid nitrogen;
The second fixed pulley (5), described the second fixed pulley (5) is fixed on described liquid nitrogen container (7) inside and is immersed in liquid nitrogen, from described electrode assemblie (1,2; 1 ', 2 '; 1 ' ', 2 ' ') superconducting tape is out reeled through described the second fixed pulley (5);
Machine reel (58), described machine reel (58) is fixed on the top of described liquid nitrogen container (7), is wound up into described machine reel (58) from described the second fixed pulley (5) superconducting tape out; And
The second motor (19), described the second motor (19) is connected with described machine reel (58), for driving machine reel (58) rotation,
Wherein, described controller (20) is also connected with described the first motor (12) and described the second motor (19), be used for controlling described the first motor (12) and described the second motor (19) rotates at a predetermined velocity, make in the liquid nitrogen of superconducting tape in described liquid nitrogen container (7), with constant speed by described electrode assemblie (1,2; 1 ', 2 '; 1 ' ', 2 ' '), thereby the insulating property of the insulation course to superconducting tape detect continuously.
2. the checkout equipment of the insulating property of the insulation course for detection of superconducting tape according to claim 1, is characterized in that:
Described electrode assemblie (1,2) is made up of the 3rd fixed pulley (1) and the 4th fixed pulley (2), and described the 3rd fixed pulley (1) and the 4th fixed pulley (2) are fixed on the inside of described liquid nitrogen container (7) by support (4),
The periphery of described the 3rd fixed pulley (1) has groove shapes, to form a recess space, this recess space matches with detected superconducting tape, the cylindrical shape of periphery of described the 4th fixed pulley (2), and, in the testing process of superconducting tape, described the 4th fixed pulley (2) engages with described the 3rd fixed pulley (1), thereby detected superconducting tape contacts and passes above-mentioned recess space with the periphery of described the 3rd fixed pulley (1) with the periphery of described the 4th fixed pulley (2).
3. the checkout equipment of the insulating property of the insulation course for detection of superconducting tape according to claim 1, is characterized in that:
Described electrode assemblie (1 ', 2 ') is made up of the first electrode (1 ') and the second electrode (2 '), and described the first electrode (1 ') and the second electrode (2 ') are fixed on the inside of described liquid nitrogen container (7) by support (4 '),
Described the first electrode (1 ') has groove shapes, to form a recess space, described the second electrode (2 ') is writing board shape, and, in the testing process of superconducting tape, described the first electrode (1 ') engages with described the second electrode (2 '), thereby detected superconducting tape is through above-mentioned recess space, wherein said superconducting tape and described the first electrode (1 ') and the second electrode (2 ') are spaced a predetermined distance from, and arrange between two parties in above-mentioned recess space.
4. the checkout equipment of the insulating property of the insulation course for detection of superconducting tape according to claim 1, is characterized in that:
Described electrode assemblie (1 ' ', 2 ' ') comprises the first electrode (1 ' ') and the second electrode (2 ' '), and described the first electrode (1 ' ') and the second electrode (2 ' ') are fixed on the inside of described liquid nitrogen container by support (4 ' '),
With described the second electrode (2 ' '), a first opposed fixed pulley (55) is relatively set, with described the first electrode (1 ' '), a second opposed fixed pulley (56) is relatively set, described the first opposed fixed pulley (55) and the second opposed fixed pulley (56) are fixed on the inside of described liquid nitrogen container by described support (4 ' ')
Be conducted through described the first opposed fixed pulley (55) from described the first fixed pulley (6) superconducting tape out, and carry to described the second fixed pulley (5) by described the second opposed fixed pulley (56),
Described the first electrode (1 ' ') has groove shapes, to form a recess space, and, in the testing process of superconducting tape, be wound on superconducting tape in the periphery of described the second opposed fixed pulley (56) and described the first electrode (1 ' ') spaced a predetermined distance from, and through above-mentioned recess space
Described the second electrode (2 ' ') is writing board shape, in the testing process of superconducting tape, is wound on superconducting tape in the periphery of described the first opposed fixed pulley (55) and described the second electrode (2 ' ') spaced a predetermined distance from.
5. according to the checkout equipment of the insulating property of the insulation course for detection of superconducting tape described in any one in claim 1-4, it is characterized in that:
Each described take-off reel (57) and described machine reel (58) form by inner disk (10) and the outer ring portion (9) that is fixed in the periphery of this inner disk (10), wherein this inner disk (10) is made up of insulating material, described outer ring portion (9) is made up of metal material, superconducting tape is wrapped in described outer ring portion (9)
And the outer ring portion (9) of a dish in described take-off reel (57) and described machine reel (58) is electrically connected with the superconductive tape body (32) of superconducting tape, and be electrically connected with described earthed system (15), to make described superconductive tape body (32) possess earthing potential.
6. according to the checkout equipment of the insulating property of the insulation course for detection of superconducting tape described in any one in claim 1-4, it is characterized in that:
Along the transport path of superconducting tape, an insulating material lapping device (8) is set between described the second fixed pulley (5) and described machine reel (58), this insulating material lapping device (8) is fixed on the top of described liquid nitrogen container, and be connected with described controller (20)
In the testing process of superconducting tape, the insulating property that the insulation course of superconducting tape detected when the data of described controller (20) based on described data collecting card (13) output occur when abnormal, described power supply (18) controlled immediately by described controller (20) so that the output voltage of described power supply (18) is reduced to zero, and control the rotation of described the first motor (12) and described the second motor (19), be transported to described insulating material lapping device (8) with the abnormal position of insulating property that makes superconducting tape, then described controller (20) is controlled described insulating material lapping device (8), so that the abnormal position of the insulating property of described superconducting tape is held to insulating material again.
7. the checkout equipment of the insulating property of the insulation course for detection of superconducting tape according to claim 6, is characterized in that:
After the abnormal position of the insulating property of described superconducting tape is held to insulating material again, described controller (20) is controlled described the first motor (12) and described the second motor (19) so that its reverse rotation, thereby the superconducting tape position that again holds insulating material is carried and got back to described electrode assemblie (1,2; 1 ', 2 '; 1 ' ', 2 ' '), and then control described the first motor (12) and described the second motor (19) so that it is rotated in the forward again, whether the insulating property that again detect the superconducting tape position that again holds insulating material are normal.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110412664.5A CN102520321B (en) | 2011-12-12 | 2011-12-12 | Detection equipment used for detecting insulating property of insulating layer of superconducting tape |
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| CN201110412664.5A CN102520321B (en) | 2011-12-12 | 2011-12-12 | Detection equipment used for detecting insulating property of insulating layer of superconducting tape |
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| CN102520321A CN102520321A (en) | 2012-06-27 |
| CN102520321B true CN102520321B (en) | 2014-06-04 |
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| CN103808281B (en) * | 2013-11-07 | 2016-08-17 | 北京工业大学 | The on-line measuring device of a kind of high temperature coating superconduction base band surface roughness and detection method |
| CN104635125A (en) * | 2015-01-22 | 2015-05-20 | 国家电网公司 | Superconduction current lead voltage withstanding test system |
| CN105137303A (en) * | 2015-09-11 | 2015-12-09 | 云南电网有限责任公司电力科学研究院 | Insulating strength test platform for superconductive insulating materials under different elongations in liquid nitrogen environments and platform application method |
| CN105301461A (en) * | 2015-11-27 | 2016-02-03 | 云南电网有限责任公司电力科学研究院 | Test device for insulation performance of wrapped superconductor and test method thereof |
| CN107765146B (en) * | 2017-10-02 | 2019-12-13 | 国网山西省电力公司电力科学研究院 | on-site detection device and detection method for insulation performance of low-voltage side bus packaging material |
| CN111812196B (en) * | 2020-07-16 | 2023-03-21 | 浙江云联智能制造研究院有限公司 | Gas pipe electric spark detection equipment with gas pipe insulating layer electric leakage |
| CN111982735B (en) * | 2020-08-21 | 2023-05-23 | 广东电网有限责任公司电力科学研究院 | Testing method and device for high-voltage dry sleeve in cross-temperature zone and terminal equipment |
| CN117250454B (en) * | 2023-11-15 | 2024-03-12 | 深圳市胜威南方科技有限公司 | Bus insulation state detection device |
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| JPH08285920A (en) * | 1995-04-19 | 1996-11-01 | Hitachi Cable Ltd | Partial-discharge measuring method |
| CN101169641B (en) * | 2007-12-05 | 2010-08-18 | 中国科学院电工研究所 | Digital control system of superconducting strip material insulation wrapping device |
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