CN108207045B - Wireless heating power supply module and wireless heating method for superconducting cable heat-insulating pipe - Google Patents

Wireless heating power supply module and wireless heating method for superconducting cable heat-insulating pipe Download PDF

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Publication number
CN108207045B
CN108207045B CN201711364786.5A CN201711364786A CN108207045B CN 108207045 B CN108207045 B CN 108207045B CN 201711364786 A CN201711364786 A CN 201711364786A CN 108207045 B CN108207045 B CN 108207045B
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heat
superconducting cable
pipe
power supply
adsorption
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CN108207045A (en
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韩云武
黄逸佳
陈志越
喻志广
张大义
张智勇
张喜泽
田祥
陆小虹
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Shanghai International Superconducting Technology Co., Ltd
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Shanghai International Superconducting Technology Co ltd
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    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00Heating by electric, magnetic or electromagnetic fields
    • H05B6/02Induction heating
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00Heating by electric, magnetic or electromagnetic fields
    • H05B6/02Induction heating
    • H05B6/10Induction heating apparatus, other than furnaces, for specific applications

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Thermal Insulation (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)

Abstract

The invention provides a wireless heating power supply assembly and a wireless heating method for a superconducting cable heat-insulating pipe, wherein the superconducting cable heat-insulating pipe comprises an inner pipe and an outer pipe sleeved outside the inner pipe, a vacuum interlayer is arranged between the inner pipe and the outer pipe, an adsorption layer is arranged in the vacuum interlayer, an adsorption piece is arranged in the adsorption layer, and the adsorption piece is activated by heating; the outer tube is provided with a bulge cavity which protrudes outwards and is communicated with the vacuum interlayer; the wireless heating power supply module includes: the secondary coil is arranged in the bulge cavity; the heating element is arranged in the adsorption layer or sleeved outside the adsorption layer and is connected with the secondary coil; and the magnetic conductive sleeve is sleeved outside the protruding cavity, a primary coil corresponding to the secondary coil is arranged inside the magnetic conductive sleeve, and the primary coil is connected with a power supply. The invention realizes the electric heating of the heating element by adopting a wireless connection mode; the adsorption piece can be activated on line without disassembling or damaging the superconducting cable heat-insulating pipe, so that the vacuum service life of the superconducting cable heat-insulating pipe is prolonged, and the maintenance flow is simplified.

Description

Wireless heating power supply module and wireless heating method for superconducting cable heat-insulating pipe
Technical Field
The invention relates to the technical field of an adsorption part activation structure of a heat insulation low-temperature container, in particular to a wireless heating power supply assembly and a wireless heating method of a superconducting cable heat insulation pipe.
Background
The superconducting cable heat-insulating pipe is a double-layer pipe member including an inner pipe and an outer pipe with a vacuum interlayer therebetween. The thermal insulation performance of the superconducting cable thermal insulation pipe is determined by the degree of vacuum of the vacuum interlayer. After the superconducting cable heat-insulating pipe is manufactured and vacuumized, the vacuum degree of the superconducting cable heat-insulating pipe is gradually attenuated along with time due to factors such as gas emission and the like of the material of the superconducting cable heat-insulating pipe, so that the heat-insulating performance is continuously degraded. Therefore, the vacuum interlayer of the general superconducting cable heat-insulating pipe is provided with an adsorption piece, the adsorption piece is generally activated by heat, and the activated adsorption piece can adsorb gas. The existing way of using the adsorption piece is as follows: and installing the activated adsorption piece into the superconducting cable heat-insulating pipe, and directly adsorbing the gas in the superconducting cable heat-insulating pipe. The method adopts the existing mode of using the adsorption piece, the activated adsorption piece is matched with a vacuumizing device, so that the vacuum degree of the superconducting cable heat-insulating pipe before use can meet the requirement, although the adsorption piece can still absorb certain gas in the using process of the superconducting cable heat-insulating pipe, the adsorption capacity of the adsorption piece in the superconducting cable heat-insulating pipe can quickly reach a saturated state, the adsorption capacity can be gradually reduced, and finally the vacuum service life of the superconducting cable heat-insulating pipe is short.
Disclosure of Invention
In view of the above-described drawbacks of the prior art, an object of the present invention is to provide a wireless heating power supply module and a wireless heating method for a superconducting cable heat-insulating pipe.
In order to solve the technical problems, the invention provides a wireless heating power supply assembly of a superconducting cable heat-insulating pipe, wherein the superconducting cable heat-insulating pipe comprises an inner pipe and an outer pipe sleeved outside the inner pipe, a vacuum interlayer is arranged between the inner pipe and the outer pipe, an adsorption layer is arranged in the vacuum interlayer, an adsorption piece is arranged in the adsorption layer, and the adsorption piece is activated by heat; the outer tube is provided with a bulge cavity protruding outwards, and the bulge cavity is communicated with the vacuum interlayer; the wireless heating power supply module includes: a secondary coil disposed in the raised cavity; the heating element is arranged in the adsorption layer or sleeved outside the adsorption layer and is connected with the secondary coil; the magnetic conduction sleeve is used for being sleeved outside the protruding cavity, a primary coil corresponding to the secondary coil is arranged inside the magnetic conduction sleeve, and the primary coil is connected with a power supply.
Preferably, the heating element is a resistance wire.
Preferably, the adsorbing member is activated carbon.
Preferably, a magnetic strip is arranged in the secondary coil.
Preferably, a radiation-proof heat-insulating layer is further arranged in the vacuum interlayer, and the radiation-proof heat-insulating layer is coated outside the adsorption layer.
Preferably, a heat-resistant heat-insulating layer is further arranged in the vacuum interlayer, the heat-resistant heat-insulating layer is coated outside the inner pipe, and the adsorption layer is coated outside the heat-resistant heat-insulating layer.
The invention also relates to a wireless heating method of the superconducting cable heat-insulating pipe, which adopts the wireless heating power supply component of the superconducting cable heat-insulating pipe, an adsorption piece arranged in the superconducting cable heat-insulating pipe is not activated, if the adsorption piece is used for adsorbing the gas in the vacuum interlayer of the superconducting cable heat-insulating pipe after being used, a magnetic sleeve is sleeved outside a convex cavity, the primary coil in the magnetic sleeve generates a magnetic field, the magnetic field penetrates through the secondary coil, induced current is generated in the secondary coil, the induced current passes through a heating element, the temperature of the heating element is increased, and the heat of the heating element activates the adsorption piece to enable the adsorption piece to adsorb the gas in the vacuum interlayer.
Preferably, a heat-resistant heat-insulating layer is further arranged in the vacuum interlayer, the heat-resistant heat-insulating layer is coated outside the inner pipe, and the adsorption layer is coated outside the heat-resistant heat-insulating layer; the heat-resistant temperature of the heat-resistant heat-insulating layer is greater than the activation temperature of the adsorption member.
As described above, the wireless heating power supply module and the wireless heating method for the superconducting cable heat-insulating pipe according to the present invention have the following advantageous effects:
in the invention, an adsorption piece arranged in a superconducting cable heat insulation pipe is not activated, if the adsorption piece is used for adsorbing gas in a vacuum interlayer of the superconducting cable heat insulation pipe after being put into use, a magnetic sleeve is sleeved outside a convex cavity, a primary coil in the magnetic sleeve generates a magnetic field, an induced current is generated in a secondary coil corresponding to the primary coil, the induced current passes through a heating element, the temperature of the heating element is increased, and the heat of the heating element activates the adsorption piece so that the adsorption piece adsorbs the gas in the vacuum interlayer; the wireless heating power supply assembly realizes the electric heating of the heating element in a wireless connection mode; the wireless heating power supply assembly can heat the suction part at any time after the vacuum interlayer of the superconducting cable heat-insulating pipe is vacuumized, so as to activate the adsorption part; the invention has flexible heating operation mode, does not need to disassemble or damage the superconducting cable heat-insulating pipe, can realize the on-line activation of the adsorption piece, improves the vacuum service life of the superconducting cable heat-insulating pipe and simplifies the maintenance process.
Drawings
Fig. 1 is a schematic view showing a configuration of a wireless heating power supply module of a superconducting cable heat-insulating pipe according to this embodiment.
Fig. 2 is a schematic view showing a configuration of a wireless heating power supply module of the superconducting cable heat-insulating pipe according to the present embodiment without a flux sleeve.
Fig. 3 is a schematic view showing a configuration in which a heating element is fitted to the outside of an adsorption layer in the wireless heating power supply module of the superconducting-cable heat-insulating pipe according to this embodiment.
Fig. 4 is a schematic view showing a configuration in which a heating element is provided inside an adsorption layer in the wireless heating power supply module of the superconducting cable heat-insulating pipe according to the present embodiment.
Description of the reference numerals
100 superconductive cable heat insulation pipe
110 inner pipe
120 outer tube
121 bulge cavity
122 support
130 vacuum interlayer
200 adsorption layer
210 adsorption piece
300 Secondary coil
310 magnetic conduction strip
400 heating element
500 magnetic sleeve
600 primary coil
700 power supply
800 radiation-proof heat-insulating layer
900 heat-resistant heat-insulating layer
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
Please refer to the attached drawings. It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions under which the present invention can be implemented, so that the present invention has no technical significance, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.
As shown in fig. 1 to 4, in the wireless heating power supply module of the superconducting cable thermal insulation pipe of the present embodiment, the superconducting cable thermal insulation pipe 100 includes an inner pipe 110 and an outer pipe 120 sleeved outside the inner pipe 110, a vacuum interlayer 130 is disposed between the inner pipe 110 and the outer pipe 120, an adsorption layer 200 is disposed in the vacuum interlayer 130, an adsorption member 210 is disposed in the adsorption layer 200, and the adsorption member 210 is activated by heat; the outer tube 120 is provided with a convex cavity 121 protruding outwards, and the convex cavity 121 is communicated with the vacuum interlayer 130;
the wireless heating power supply module includes: a secondary coil 300 disposed in the protrusion cavity 121; a heating element 400 disposed inside the adsorption layer 200 or sleeved outside the adsorption layer 200, and the heating element 400 is connected to the secondary coil 300; the magnetic conductive sleeve 500 is used for being sleeved outside the protruding cavity 121, a primary coil 600 corresponding to the secondary coil 300 is arranged inside the magnetic conductive sleeve 500, and the primary coil 600 is connected with the power supply 700.
In the present invention, the adsorption member 210 installed in the superconducting cable thermal insulation pipe 100 is not activated, if the adsorption member 210 is to adsorb the gas in the vacuum interlayer 130 of the superconducting cable thermal insulation pipe 100 after being put into use, the flux sleeve 500 is sleeved outside the bulge cavity 121, the primary coil 600 in the flux sleeve 500 generates a magnetic field, an induced current is generated in the secondary coil 300 corresponding to the primary coil 600, the induced current passes through the heating element 400, the temperature of the heating element 400 is raised, and the heat of the heating element 400 activates the adsorption member 210, so that the adsorption member 210 adsorbs the gas in the vacuum interlayer 130; the wireless heating power supply assembly realizes the electric heating of the heating element 400 in a wireless connection mode; by adopting the wireless heating power supply assembly of the invention, the suction piece 210 can be heated at any time after the vacuum interlayer 130 of the superconducting cable heat-insulating pipe 100 is vacuumized, so that the suction piece 210 can be activated;
the heating element 400 is a strip structure, so that the heating element 400 is disposed in the adsorption layer 200; the heating element 400 has the same length as that of the superconducting cable heat-insulating pipe 100 so that the heating element 400 can uniformly heat the suction member 210 in the entire suction layer 200.
The heating element 400 is a resistive wire. The resistance wire has simple structure, convenient use and stable heating. The resistance wire is a whole piece, and the whole piece is spirally wound outside or inside the adsorption layer at equal intervals; or the resistance wire is many, and many resistance wire intervals equal, many resistance wire series connection, many resistance wires set up in the outside or the inside of adsorbed layer.
The adsorbing member 210 is activated carbon. The activated carbon is activated in adsorption performance after being heated, and can adsorb various gases such as hydrogen and the like.
The secondary coil 300 is provided with a magnetic conductive strip 310. The magnetic conductive strip 310 can increase the magnetic flux. In this embodiment, the secondary coil 300 is mounted on the support 122 in the boss cavity 121.
The vacuum interlayer 130 is further provided with a radiation-proof heat-insulating layer 800, and the radiation-proof heat-insulating layer 800 is coated outside the adsorption layer 200. The radiation-proof heat-insulating layer 800 is used for blocking heat generated after the adsorption member 210 is heated from being conducted outwards, so that the heating efficiency of the adsorption member 210 is improved. The radiation-proof heat-insulating layer 800 is made of an aluminum-plated foil film.
The vacuum interlayer 130 is further provided with a heat-resistant heat-insulating layer 900, the heat-resistant heat-insulating layer 900 is coated outside the inner tube 110, and the adsorption layer 200 is coated outside the heat-resistant heat-insulating layer 900. The heat-resistant heat-insulating layer 900 blocks the heat of the adsorption layer 200 from being conducted to the inner pipe 110, and at the same time, the heat-resistant temperature of the heat-resistant heat-insulating layer 900 is greater than the activation temperature of the adsorption member 210, so that the heat-resistant heat-insulating layer 900 can have heat-resistant properties when heated.
In the wireless heating method of the superconducting cable heat-insulating pipe of the embodiment, the wireless heating power supply assembly of the superconducting cable heat-insulating pipe is adopted, the adsorption member 210 installed in the superconducting cable heat-insulating pipe 100 is not activated, if the adsorption member 210 is to adsorb the gas in the vacuum interlayer 130 of the superconducting cable heat-insulating pipe 100 after being put into use, the magnetic conductive sleeve 500 is sleeved outside the bulge cavity 121, the primary coil 600 in the magnetic conductive sleeve 500 generates a magnetic field, the magnetic field penetrates the secondary coil 300, induced current is generated in the secondary coil 300, the induced current passes through the heating element 400, the temperature of the heating element 400 is increased, the heat of the heating element 400 activates the adsorption member 210, and the adsorption member 210 adsorbs the gas in the vacuum interlayer 130.
Before the superconducting cable heat-insulating pipe 100 is put into use, the vacuum interlayer 130 in the superconducting cable heat-insulating pipe 100 is kept in vacuum degree by a vacuum pumping mode; since the suction member 210 installed in the superconducting cable heat-insulating pipe 100 is not activated, the suction member 210 activated by heating can suck more gas, thereby improving the vacuum life of the superconducting cable heat-insulating pipe 100.
Since the electric heating of the heating element 400 is realized by the wireless connection without disassembling or damaging the superconducting-cable heat-insulating pipe 100, the maintenance procedure of the superconducting-cable heat-insulating pipe 100 is simplified.
In conclusion, the present invention effectively overcomes various disadvantages of the prior art and has high industrial utilization value.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims (8)

1. A wireless heating power supply assembly of a superconducting cable heat insulation pipe is disclosed, wherein the superconducting cable heat insulation pipe (100) comprises an inner pipe (110) and an outer pipe (120) sleeved outside the inner pipe (110), a vacuum interlayer (130) is arranged between the inner pipe (110) and the outer pipe (120), an adsorption layer (200) is arranged in the vacuum interlayer (130), an adsorption piece (210) is arranged in the adsorption layer (200), and the adsorption piece (210) is activated by heat; the vacuum interlayer is characterized in that a bulge cavity (121) protruding outwards is arranged on the outer tube (120), and the bulge cavity (121) is communicated with the vacuum interlayer (130); the wireless heating power supply module includes:
a secondary coil (300) disposed in the raised cavity (121);
a heating element (400) disposed inside the adsorption layer (200) or sleeved outside the adsorption layer (200), wherein the heating element (400) is connected with the secondary coil (300);
the magnetic conductive sleeve (500) is used for being sleeved outside the protruding cavity (121), a primary coil (600) corresponding to the secondary coil (300) is arranged inside the magnetic conductive sleeve (500), and the primary coil (600) is connected with a power supply (700).
2. The wireless heating power supply module for a superconducting cable heat-insulating pipe according to claim 1, wherein: the heating element (400) is a resistance wire.
3. The wireless heating power supply module for a superconducting cable heat-insulating pipe according to claim 1, wherein: the adsorption member (210) is activated carbon.
4. The wireless heating power supply module for a superconducting cable heat-insulating pipe according to claim 1, wherein: the secondary coil (300) is internally provided with a magnetic conduction strip (310).
5. The wireless heating power supply module for a superconducting cable heat-insulating pipe according to claim 1, wherein: and a radiation-proof heat-insulating layer (800) is further arranged in the vacuum interlayer (130), and the radiation-proof heat-insulating layer (800) is coated outside the adsorption layer (200).
6. The wireless heating power supply module for a superconducting cable heat-insulating pipe according to claim 1, wherein: the vacuum interlayer (130) is also internally provided with a heat-resistant heat-insulating layer (900), the heat-resistant heat-insulating layer (900) is coated outside the inner pipe (110), and the adsorption layer (200) is coated outside the heat-resistant heat-insulating layer (900).
7. A wireless heating method for a superconducting cable heat-insulating pipe, characterized by comprising: the wireless heating power supply module using the superconducting cable thermal insulation pipe according to any one of claims 1 to 5, wherein the suction member (210) incorporated in the superconducting cable thermal insulation pipe (100) is not activated, and if the suction member (210) is to suck the gas in the vacuum interlayer (130) of the superconducting cable thermal insulation pipe (100) after use, sleeving a flux sleeve (500) outside the bulge cavity (121), wherein the primary coil (600) in the flux sleeve (500) generates a magnetic field, and the magnetic field penetrates through the secondary coil (300), generating an induced current in the secondary coil (300), the induced current passing through a heating element (400), the temperature of the heating element (400) is increased, and the heat of the heating element (400) activates the adsorption piece (210) to enable the adsorption piece (210) to adsorb the gas in the vacuum interlayer (130).
8. The wireless heating method of a superconducting cable heat-insulating pipe according to claim 7, wherein: the vacuum interlayer (130) is also internally provided with a heat-resistant heat-insulating layer (900), the heat-resistant heat-insulating layer (900) is coated outside the inner pipe (110), and the adsorption layer (200) is coated outside the heat-resistant heat-insulating layer (900); the heat-resistant heat-insulating layer (900) has a heat-resistant temperature greater than the activation temperature of the adsorbent member (210).
CN201711364786.5A 2017-12-18 2017-12-18 Wireless heating power supply module and wireless heating method for superconducting cable heat-insulating pipe Active CN108207045B (en)

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* Cited by examiner, † Cited by third party
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CN115527740B (en) * 2022-11-24 2023-03-10 杭州慧翔电液技术开发有限公司 Self-circulation superconducting magnet and semiconductor single crystal furnace

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1725386A (en) * 2004-07-20 2006-01-25 Y.Y.L株式会社 DC superconducting feeding cable and feeding system
CN107429965A (en) * 2015-02-09 2017-12-01 三星电子株式会社 Vacuumed insulation panel, the manufacture method of Vacuumed insulation panel and the refrigerator including Vacuumed insulation panel

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1725386A (en) * 2004-07-20 2006-01-25 Y.Y.L株式会社 DC superconducting feeding cable and feeding system
CN107429965A (en) * 2015-02-09 2017-12-01 三星电子株式会社 Vacuumed insulation panel, the manufacture method of Vacuumed insulation panel and the refrigerator including Vacuumed insulation panel

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