CN112233873A - Superconducting magnet supporting structure suitable for cold state transportation - Google Patents

Superconducting magnet supporting structure suitable for cold state transportation Download PDF

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Publication number
CN112233873A
CN112233873A CN202011015434.0A CN202011015434A CN112233873A CN 112233873 A CN112233873 A CN 112233873A CN 202011015434 A CN202011015434 A CN 202011015434A CN 112233873 A CN112233873 A CN 112233873A
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CN
China
Prior art keywords
cold
superconducting magnet
end connecting
cylinder
connecting part
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CN202011015434.0A
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Chinese (zh)
Inventor
高而震
董振斌
涂炜旻
张翔
李�泳
张秀加
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Time Medical Jiangsu Co ltd
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Time Medical Jiangsu Co ltd
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Priority to CN202011015434.0A priority Critical patent/CN112233873A/en
Publication of CN112233873A publication Critical patent/CN112233873A/en
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F6/00Superconducting magnets; Superconducting coils
    • H01F6/04Cooling
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F6/00Superconducting magnets; Superconducting coils
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F6/00Superconducting magnets; Superconducting coils
    • H01F6/06Coils, e.g. winding, insulating, terminating or casing arrangements therefor

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Containers, Films, And Cooling For Superconductive Devices (AREA)

Abstract

The invention discloses a superconducting magnet supporting structure suitable for cold state transportation, which comprises a supporting barrel inserted into a sealed transportation port, wherein: the support cylinder is provided with a room temperature end connecting part, a cold shield heat interception ring and a cold end connecting cylinder which are sequentially arranged from outside to inside; the room temperature end connecting part is tightly pressed and fixed on the outer side of the low-temperature Dewar shell, and a sealing channel is also arranged between the inner wall and the cold shield heat interception ring; the outer wall of the cold shield heat interception ring is hermetically connected with the cold shield, and the inner wall of the cold shield heat interception ring is provided with a cold end connecting cylinder; a hollow cavity is arranged inside the cold end connecting cylinder; a corrugated pipe is fixed in the sealing channel; one end of the corrugated pipe is fixed on the inner wall of the low-temperature Dewar shell, the other end of the corrugated pipe freely extends to the room-temperature end connecting part of the supporting cylinder, and a supporting cylinder cushion block is arranged between the inner wall of the room-temperature end connecting part and the outer side of the low-temperature Dewar shell. The superconducting magnet supporting structure provided by the invention realizes that the vacuum stability of the superconducting magnet can be still maintained for transportation without first heating and discharging liquid helium to destroy the vacuum, and the transportation cost of the superconducting magnet is saved.

Description

Superconducting magnet supporting structure suitable for cold state transportation
Technical Field
The invention relates to the technical field of superconducting magnets, in particular to a superconducting magnet supporting structure suitable for cold-state transportation.
Background
In a common superconducting magnet structure, a magnetic field is generated by current in a superconducting coil. In order to maintain the superconducting state of the coil wire, the coil must be maintained at an extremely low temperature, typically by liquid helium and the cold head of a cryocooler. The superconducting coils are immersed in liquid helium in a liquid helium vessel of a cryogenic dewar. In order to effectively prevent the liquid helium from evaporating due to conduction, convection or radiation of external heat to the liquid helium dewar, the superconducting coil and the cryogenic vessel of the dewar must be placed inside the vacuum chamber and the radiation-proof cold shield and the multi-layer heat radiation-proof film envelope therein. The vacuum is maintained by a dewar's room temperature vessel. However, no matter the best cryogenic systems, external heat cannot be completely removed from entering the liquid helium vessel, and the remaining thermal radiation and suspension of the liquid helium vessel in vacuum are the primary heat leak paths. The purpose of the cold head is to remove heat leak from the support member and residual radiation, and also to liquefy helium gas evaporated by the leak back to a liquid state.
Since the temperature of the superconducting magnet is at 4.2K, which is close to absolute zero, there is a tendency for a significant amount of ambient thermal energy to be conducted towards the interior of the cryogenic dewar, with some of the heat passing through the suspension system of the magnet. The liquid helium dewar of a general magnetic resonance magnet and its internal coil weigh several hundred kilograms to several tons. The suspension of the low temperature dewar in vacuum is accomplished by a well-designed suspension mechanism. Too strong a suspension mechanism may increase heat leakage, and current suspension mechanisms are mainly made of glass fiber reinforced plastics, carbon fibers, or alloy materials. These materials have in common the characteristics of high mechanical strength, high tensile properties, and low thermal conductivity. Durable stability and non-volatile gas components in vacuum are also properties that must be provided. Even if such excellent materials are used, heat conduction cannot be completely eliminated, and if the heat leakage is close to or greater than the refrigeration power of the low-temperature cold head, the liquid helium may be volatilized and consumed, which may hinder the long-term stable operation of the magnet. Therefore, the design of the fine suspension mechanism usually has a safety factor selected to ensure that the magnet is safe during transportation, and the heat leakage is small enough to allow cooling by a low-temperature cold head.
However, as the size or field of the magnet increases, such as a 7T magnet, the weight of the field coil and cryogenic dewar increases, requiring a more robust suspension mechanism, which means greater heat leakage. When the cooling power of a cold head is not sufficient to balance the heat leak, liquid helium will begin to be consumed.
One of the ways to re-reach equilibrium is to add a cold head. This is a relatively expensive solution. The cold head and the helium compressor matched with the cold head are high in price, and an additional water cooling or air cooling system is required, so that the power consumption is increased.
Another way to re-balance is not to increase the strength of the suspension mechanism, where the magnet is only safe at rest, and during transport the magnet must be secured by additional support mechanisms to protect the suspension mechanism. The magnet vacuum shell and the cold shield are provided with four pairs of concentric holes, and four screw holes are arranged on the end surface of the innermost liquid helium container at the same position. Under normal conditions, four holes in the vacuum shell are covered and sealed by four vacuum blind plates and sealing rings to keep vacuum. When the magnet with the additional transportation support is transported, the transportation support cylinder is arranged in the transportation hole and is tightly connected with the liquid helium Dewar inside and the vacuum shell outside through screws.
The transportation supporting mechanism effectively transmits the weight of the coil and the low-temperature Dewar and the impact force received during transportation to the shell through the firmer supporting cylinder. The original heat insulation support of the magnet is effectively protected. The disadvantage of this solution is the need to break the vacuum in order to completely restore the magnet to ambient conditions. The temperature return of the magnet not only wastes a large amount of liquid helium, but also requires a large amount of time.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a superconducting magnet which enables a coil and a low-temperature Dewar to be effectively supported without breaking vacuum, the heat leakage is controlled within an allowable range, and the superconducting magnet can support the magnet to be transported in a cold state. The supporting of the shell to the low-temperature Dewar and the coil inside the shell can be increased under the condition of not increasing too much heat leakage, so that mechanical impact possibly generated in the transportation process can be effectively resisted, and the superconducting magnet supporting structure suitable for cold-state transportation of a suspension mechanism inside the superconducting magnet is protected.
The technical scheme adopted by the invention is as follows: a superconducting magnet support structure suitable for cold state transportation, connected to a sealed transportation port of a superconducting magnet housing, for supporting and sealing the transportation port, comprising a support cartridge inserted into the sealed transportation port, wherein:
the support cylinder is provided with a room temperature end connecting part, a cold shield heat interception ring and a cold end connecting cylinder which are sequentially arranged from outside to inside;
the room temperature end connecting part is tightly pressed and fixed on the outer side of the low-temperature Dewar shell, and a sealing channel is also arranged between the inner wall of the room temperature end connecting part and the cold shield heat interception ring;
the outer wall of the cold shield heat interception ring is hermetically connected with the cold shield, and the inner wall of the cold shield heat interception ring is provided with a cold end connecting cylinder;
the cold end connecting cylinder is internally provided with a hollow cavity and is used for plugging and unplugging a support shaft of the liquid helium container;
a corrugated pipe is fixed in the sealing channel;
one end of the corrugated pipe is fixed on the inner wall of the low-temperature Dewar shell, and the other end of the corrugated pipe freely extends to the room-temperature end connecting part of the supporting cylinder, so that the stability of the supporting cylinder can be still kept when the supporting cylinder moves, and cold air in the superconducting magnet cylinder is prevented from leaking;
when the super magnetic conductor is transported, a supporting cylinder cushion block is arranged between the inner wall of the room temperature end connecting part and the outer side of the low-temperature Dewar shell.
Preferably, when the superconducting magnet works daily, the room temperature end connecting part is tightly attached and fixed with the outer side of the low-temperature Dewar shell.
Preferably, the outer side of the cold shield heat interception ring connected with the cold shield is also provided with a sealing enhancement cylinder.
Preferably, the sealing enhancement cylinder is fixed on the cold shield, and when the supporting cylinder is separated from the liquid helium container, the supporting cylinder cannot be driven to be separated, so that on one hand, the separation efficiency of the cold shield heat interception ring can be improved, and on the other hand, the generation of heat loss is avoided.
The corrugated pipe has a corrugated connecting portion and a corrugated expansion pipe, wherein:
one end of the corrugated connecting part is fixed on the inner wall of the low-temperature Dewar shell, and the other end of the corrugated connecting part is fixedly connected with the corrugated telescopic pipe;
the corrugated expansion pipe is arranged in the support cylinder and freely extends to the room temperature end connecting part of the support cylinder.
Preferably, the corrugated connection portion is fixedly connected with the portion connected with the inside of the cryogenic dewar shell by welding.
Preferably, the bellows length of the bellows is less than the total thickness of the low temperature dewar shell, the supporting cylinder cushion block and the room temperature end connecting part.
Preferably, the length of the cold shield heat interceptor ring is greater than the sum of the compressed length of the bellows plus the length of the inner wall of the low temperature dewar housing to the inner wall of the cold shield.
Preferably, the support cylinder is further provided with a lightening groove between the cold end connecting cylinder and the cold shield heat interception ring.
Preferably, the room temperature end connecting part is fixed on the outer side of the low-temperature Dewar shell in a pressing mode through a plurality of screws.
Compared with the prior art, the invention has the beneficial effects that: the supporting structure of the superconducting magnet suitable for cold-state transportation provided by the invention realizes that the vacuum stability of the superconducting magnet can be maintained for transportation without first heating and discharging liquid helium to destroy the vacuum, and the transportation cost of the superconducting magnet is saved.
Particularly, the superconducting magnet is more convenient to transport after the supporting structure is used. The vacuum is broken without first heating up and discharging liquid helium, only a supporting barrel cushion block is needed to be arranged between the inner wall of the room temperature end connecting part and the outer side of the low-temperature Dewar shell, so that the cold end connecting barrel of the supporting barrel is separated from the outer side of the supporting shaft of the liquid helium container, the sealing channel is lengthened at the moment, the corrugated pipe is changed into a free telescopic state from a compression state during working, when the whole superconducting magnet is moved, even if the whole superconducting magnet is collided or shaken, the corrugated pipe can absorb vibration energy, the damage to the low-temperature Dewar shell and a cold screen of the superconducting magnet, the liquid helium container and the like can not be caused, the normal sealing of the whole superconducting magnet can.
Therefore, before the supporting structure is used, the transportation time of the superconducting magnet is longer, the superconducting magnet needs to be recovered to normal temperature for transportation about dozens of days, and new liquid helium needs to be refilled after transportation; the liquid helium can be transported with the container, so that the transportation time and the liquid helium resource are saved. Particularly, the cost of liquid helium for the transportation of a set of superconducting magnets is about 300 yuan per liter, and one superconducting magnet needs about 1000L of liquid helium, so that the transportation cost of the set of superconducting magnets can be saved by hundreds of thousands.
In conclusion, the supporting structure of the superconducting magnet suitable for cold state transportation has the advantages that the coil and the low-temperature Dewar are effectively supported by the heat insulation supporting mechanism under the condition that vacuum is not broken, heat leakage is controlled within an allowable range, the transportation cost is saved, the transportation period is shortened, and the supporting structure has great application prospect.
Drawings
FIG. 1 is a block diagram of a support structure for a superconducting magnet suitable for cold state transport;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
FIG. 3 is an enlarged view of A of FIG. 2 in a transport state;
fig. 4 is an enlarged view of a in fig. 2 in a normal operating state of the superconducting magnet;
wherein: 1-superconducting magnet shell, 2-cold shield, 3-liquid helium container, 31-supporting shaft; 4-support cylinder, 41-room temperature end connecting part, 42-cold shield heat interception ring, 43-cold end connecting cylinder and 431-hollow cavity; 44-sealing the channel, 45-lightening the groove; 5-corrugated pipe, 51-corrugated connecting part, 52-corrugated telescopic pipe; 6-supporting cylinder cushion block, 7-sealing reinforcing cylinder, 8-screw, 9-sealing transportation port and 10-primary cold head.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the combination or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, are not to be construed as limiting the present invention. In addition, in the description process of the embodiment of the present invention, the positional relationships of the devices such as "upper", "lower", "front", "rear", "left", "right", and the like in all the drawings are based on fig. 1.
As shown in fig. 1, 2 and 3, a superconducting magnet support structure suitable for cold transportation, connected to a sealed transportation port 9 of a superconducting magnet housing 1, for supporting and sealing the transportation port 9, includes a support sleeve 4 inserted into the sealed transportation port 9, wherein:
the support cylinder 4 is provided with a room temperature end connecting part 41, a cold shield heat interception ring 42 and a cold end connecting cylinder 43 which are arranged in sequence from outside to inside;
as shown in fig. 3 and 4, the room temperature end connecting portion 41 is fixed on the outer side of the low temperature dewar shell 1 by pressing, and a sealing channel 44 is further provided between the inner wall and the cold shield heat intercepting ring 42;
the outer wall of the cold shield heat interception ring 42 is hermetically connected with the cold shield 2 to play a role of heat interception, most of heat leaked into the magnet from the hot end is conducted to the cold shield and is finally cooled by the primary cold head 10, and the inner wall of the cold shield heat interception ring is also provided with a cold end connecting cylinder 43;
a cold end connecting cylinder 43, the interior of which is provided with a hollow cavity 431 for the insertion and extraction of the supporting shaft 31 of the liquid helium container 3;
a corrugated pipe 5 is fixed in the sealing channel 44;
one end of the corrugated pipe 5 is fixed on the inner wall of the low-temperature Dewar shell 1, and the other end freely extends to the room-temperature end connecting part 41 of the supporting cylinder 4, so that the stability of the supporting cylinder can be still kept when the supporting cylinder moves, and cold air in the superconducting magnet cylinder is ensured not to leak;
when the super magnetic conductor transports, be provided with supporting barrel cushion 6 between room temperature end connecting portion 41 inner wall and the outside of low temperature dewar shell 1, thereby make the cold junction connecting cylinder 43 of supporting barrel break away from out from the back shaft outside of liquid helium container 3, reduce heat leakage, and sealed passageway 44 lengthens this moment, bellows 5 becomes free telescopic state by the compression state of during operation, when whole superconducting magnet is removed, even receive the collision or rock, the bellows can absorb vibration energy, can not cause the damage to the low temperature dewar shell and the cold screen of superconducting magnet, liquid helium container etc., and can guarantee whole normal sealing, reduce heat leakage.
However, when the superconducting magnet works daily, the room temperature end connecting part 41 is tightly attached and fixed with the outer side of the low-temperature Dewar shell 1, so that the normal work of the superconducting magnet can be realized without using redundant parts, and in addition, only a supporting barrel gasket needs to be added during transportation, other parts do not need to be changed, and the transportation and the use are convenient.
After the superconducting magnet is transported, the supporting barrel cushion block is drawn out or dismounted, the hollow cavity 431 of the cold end connecting barrel 43 is inserted into the supporting shaft 31 of the liquid helium container to keep normal operation, meanwhile, the corrugated pipe 5 is compressed to be normally sealed, and the outer wall of the cold shield heat interception ring 42 is connected with the cold shield 2 in a sealing mode to play a role in heat interception.
The outer side of the superconducting magnet supporting structure, which is connected with the cold shield 2, of the cold shield heat interception ring 42 is also provided with a sealing enhancement cylinder 7 for enhancing the sealing performance between the cold shield heat interception ring 42 and the cold shield and enhancing the supporting strength performance of the supporting cylinder.
The sealing enhancement cylinder 7 is fixed on the cold shield 2, and when the supporting cylinder is separated from the liquid helium container, the supporting cylinder cannot be driven to be separated, so that on one hand, the separation efficiency of the cold shield heat interception ring can be improved, and on the other hand, the generation of heat loss is avoided.
The bellows 5 of the superconducting magnet support structure has a corrugated connection portion 51 and a corrugated bellows 52, in which:
the corrugated connecting part 51 has one end fixed on the inner wall of the low-temperature Dewar shell 1 and the other end fixedly connected with the corrugated expansion pipe 52, so that the design has the advantage that the vacuum can not be damaged when the position of the heat insulation transportation additional supporting cylinder is changed due to the fact that the welded corrugated pipe is soft and good in sealing performance. The corrugated expansion pipe is fixedly connected with the low-temperature Dewar shell by the corrugated connecting part 51, so that the purpose of enhancing the connecting strength of the corrugated pipe is achieved, the damage to the corrugated pipe caused by frequent vibration or fluctuation during transportation is improved, and the service life of the corrugated pipe is prolonged;
the bellows 52 is disposed in the support cylinder 4 and freely extends toward the room temperature end connecting portion 41 of the support cylinder 4.
In a more preferred embodiment, the corrugated connection portion 51 of the superconducting magnet support structure is fixedly connected with the internal connection portion of the low-temperature dewar shell 1 by welding, so that the fixed connection is realized, the manufacturing cost can be saved, and the corrugated connection portion and the low-temperature dewar shell can be ensured to have good integrity. In addition, the length of the corrugated expansion pipe 52 of the corrugated pipe 5 can be designed to be smaller than the total thickness of the low-temperature Dewar shell 1, the supporting cylinder cushion block 6 and the room-temperature end connecting part 41, but larger than the total thickness of the low-temperature Dewar shell 1 and the supporting cylinder cushion block 6, so that the corrugated pipe has better expansion and contraction performance in use.
The length of the cold shield heat interception ring 42 of the superconducting magnet supporting structure is greater than the sum of the compression length of the corrugated pipe 5 and the length from the inner wall of the low-temperature Dewar shell 1 to the inner wall of the cold shield 2, so that when the superconducting magnet works, the cold shield heat interception ring 42 can be completely contacted with the cold shield, and better cold quantity is improved.
The support cylinder 4 of the superconducting magnet support structure is positioned between the cold end connecting cylinder 43 and the cold shield heat interception ring 42, and is also provided with a lightening groove 45 for lightening the overall mass of the support cylinder, and meanwhile, the number of ribs inside the support cylinder is more, so that the strength of the support cylinder can be guaranteed to be good. The room temperature end connecting part 41 is pressed and fixed on the outer side of the low-temperature Dewar shell 1 through a plurality of screw rods 8, but does not completely penetrate through the outer wall of the low-temperature Dewar shell 1, and the outside can be fixedly connected better in a fixing mode under the condition that the heat inside the superconducting magnet is kept and is not leaked.
The embodiments of the present invention are disclosed as the preferred embodiments, but not limited thereto, and those skilled in the art can easily understand the spirit of the present invention and make various extensions and changes without departing from the spirit of the present invention.

Claims (10)

1. Superconducting magnet bearing structure who is fit for cold state transportation connects on sealed transport mouth (9) of superconducting magnet shell (1) for support and sealed transport mouth (9), its characterized in that: comprising a support cartridge (4) inserted into a sealed transport port (11), wherein:
the support cylinder (4) is provided with a room temperature end connecting part (41), a cold shield heat interception ring (42) and a cold end connecting cylinder (43) which are arranged in sequence from outside to inside;
the room temperature end connecting part (41) is tightly pressed and fixed on the outer side of the low-temperature Dewar shell (1), and a sealing channel (44) is also arranged between the inner wall and the cold shield heat interception ring (42);
the outer wall of the cold shield heat interception ring (42) is hermetically connected with the cold shield (2), and the inner wall of the cold shield heat interception ring is provided with a cold end connecting cylinder (43);
a cold end connecting cylinder (43), the interior of which is provided with a hollow cavity (431) for inserting and pulling the support shaft (31) of the liquid helium container (3);
a corrugated pipe (5) is fixed in the sealing channel (44);
one end of the corrugated pipe (5) is fixed on the inner wall of the low-temperature Dewar shell (1), and the other end freely extends to the room-temperature end connecting part (41) of the supporting cylinder (4);
when the super magnetic conductor is transported, a supporting cylinder cushion block (6) is arranged between the inner wall of the room temperature end connecting part (41) and the outer side of the low-temperature Dewar shell (1).
2. A superconducting magnet support structure suitable for cold state transportation according to claim 1, wherein: when the superconducting magnet works daily, the room temperature end connecting part (41) is tightly adhered and fixed with the outer side of the low-temperature Dewar shell (1).
3. A superconducting magnet support structure suitable for cold state transportation according to claim 1, wherein: the outer side of the cold shield heat interception ring (42) connected with the cold shield (2) is also provided with a sealing enhancement cylinder (7).
4. A superconducting magnet support structure suitable for cold state transportation according to claim 3, wherein: the sealing reinforcing cylinder (7) is fixed on the cold shield (2).
5. A superconducting magnet support structure suitable for cold state transportation according to claim 1, wherein: the corrugated tube (5) has a corrugated connection (51) and a corrugated bellows (52), wherein:
one end of the corrugated connecting part (51) is fixed on the inner wall of the low-temperature Dewar shell (1), and the other end of the corrugated connecting part is fixedly connected with a corrugated telescopic pipe (52);
and a bellows (52) which is disposed in the support cylinder (4) and freely extends toward the room temperature end connection part (41) of the support cylinder (4).
6. A superconducting magnet support structure suitable for cold state transportation according to claim 5, wherein: the corrugated connecting part (51) is fixedly connected with the inner connecting part of the low-temperature Dewar shell (1) by welding.
7. A superconducting magnet support structure suitable for cold state transportation according to claim 5, wherein: the length of the corrugated expansion pipe (52) of the corrugated pipe (5) is less than the total thickness of the low-temperature Dewar shell (1), the supporting cylinder cushion block (6) and the room-temperature end connecting part (41), but is greater than the total thickness of the low-temperature Dewar shell (1) and the supporting cylinder cushion block (6).
8. A superconducting magnet support structure suitable for cold state transportation according to claim 1, wherein: the length of the cold shield heat interception ring (42) is greater than the sum of the compression length of the corrugated pipe (5) and the length from the inner wall of the low-temperature Dewar shell (1) to the inner wall of the cold shield (2).
9. A superconducting magnet support structure suitable for cold state transportation according to claim 1, wherein: a lightening groove (45) is further formed between the cold end connecting cylinder (43) and the cold shield heat intercepting ring (42) of the supporting cylinder (4).
10. A superconducting magnet support structure suitable for cold transportation according to any of claims 1-9, wherein: the room temperature end connecting part (41) is tightly pressed and fixed on the outer side of the low temperature Dewar shell (1) through a plurality of screw rods (8).
CN202011015434.0A 2020-09-24 2020-09-24 Superconducting magnet supporting structure suitable for cold state transportation Pending CN112233873A (en)

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Application Number Priority Date Filing Date Title
CN202011015434.0A CN112233873A (en) 2020-09-24 2020-09-24 Superconducting magnet supporting structure suitable for cold state transportation

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Application Number Priority Date Filing Date Title
CN202011015434.0A CN112233873A (en) 2020-09-24 2020-09-24 Superconducting magnet supporting structure suitable for cold state transportation

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CN112233873A true CN112233873A (en) 2021-01-15

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024050987A1 (en) * 2022-09-05 2024-03-14 中车长春轨道客车股份有限公司 Decoupling design method for sealing and bearing structure, and support structure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024050987A1 (en) * 2022-09-05 2024-03-14 中车长春轨道客车股份有限公司 Decoupling design method for sealing and bearing structure, and support structure

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