CN106328338A - Low-temperature superconducting magnet cooling device and liquid delivery pipe group - Google Patents
Low-temperature superconducting magnet cooling device and liquid delivery pipe group Download PDFInfo
- Publication number
- CN106328338A CN106328338A CN201611034650.3A CN201611034650A CN106328338A CN 106328338 A CN106328338 A CN 106328338A CN 201611034650 A CN201611034650 A CN 201611034650A CN 106328338 A CN106328338 A CN 106328338A
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- China
- Prior art keywords
- transfusion
- tube
- delivery pipe
- liquid delivery
- base
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F6/00—Superconducting magnets; Superconducting coils
- H01F6/04—Cooling
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The invention discloses a liquid delivery pipe group of a low-temperature superconducting magnet cooling device. The liquid delivery pipe group comprises an upper liquid delivery pipe, a lower liquid delivery pipe, a connector for connecting the upper liquid delivery pipe and the lower liquid delivery pipe and a base, wherein a conical hole is formed in the base, the smaller end of the conical hole is communicated with the lower liquid delivery pipe, one end of the connector is fixedly connected with the upper liquid delivery pipe, and the other end of the connector is a cone in matched connection with the conical hole. The connector and the base are connected in a taper fit mode, so that the connector, namely the upper liquid delivery pipe is easy to plug or pull, and the operation is simple and convenient. After liquid helium filling for a Dewar tank is completed and a coil is reduced to reach superconducting temperature, the upper liquid delivery pipe can be pulled out from the Dewar tank through the connector to avoid that heat is imported into the Dewar tank along the upper liquid delivery pipe. In addition, the taper connection airtightness is good, cooling liquid can be prevented from flowing onto the coil from the connecting position during cooling liquid filling, liquid nitrogen can be thoroughly discharged during liquid nitrogen discharging, the helium filling efficiency can be improved, and liquid helium can be saved. The invention further discloses the low-temperature superconducting magnet cooling device including the liquid delivery pipe group.
Description
Technical field
The present invention relates to the chiller field of cryogenic magnet, particularly relate to a kind of cryogenic magnet cooling dress
The tube for transfusion group put.Moreover, it relates to a kind of cryogenic magnet chiller including above-mentioned tube for transfusion group.
Background technology
Cryogenic magnet is a kind of to utilize superconducting wire to produce the magnet that superconducting phenomenon is made under certain low temperature, due to
Superconducting wire is in zero resistance state, and carrying current capacity is greatly improved, and then the spiral winding of superconducting state can produce high
Magnetic field.
Low temperature environment needed for cryogenic magnet is mainly provided by liquid helium and refrigeration machine at present, and liquid helium is contained in adiabatic Dewar
In, coil is immersed in liquid helium, and the cold head of refrigeration machine is arranged on Dewar top simultaneously, by the helium condensation liquefaction again of volatilization, real
' the liquid helium zero volatilization ' of existing magnet.Coil temperature drops to liquid helium temperature to be needed to first pass through tube for transfusion group liquid nitrogen pours into adiabatic Dewar
In, make Dewar and Dewar interior loop fast cooling degree, after being down to 77K, need reversely to discharge, the most again the liquid nitrogen in Dewar
The liquid helium of more low temperature is poured in Dewar, the temperature of Dewar and coil is eventually dropped to 4.2K, be i.e. the running temperature of superconducting coil.
The tube for transfusion group being currently used for inputting coolant in Dewar is generally made up of two sections of steel pipes, and one section is fixed on Dewar
Inside, another section can freely plug, and two sections of tube for transfusions are connected by the face of cylinder；But this connected mode by machining accuracy and
The impact expanded with heat and contract with cold, the most easy to plug, and it is difficult to accomplish to seal tight, due to poorly sealed, when liquid filling, liquid can be by two
The junction of pipe splashes on coil, makes coil local temperature difference excessive, produces bigger internal stress, damages coil, during discharge opeing nitrogen, also by
Poorly sealed in two pipe junctions, cause liquid nitrogen can not thoroughly drain only, the liquid nitrogen of these remnants can volatilize and condense in cold head
Fin on, cause cold head refrigerating efficiency to reduce, the helium of volatilization in Dewar time serious, can be made can not to be all condensed into liquid
Helium, needs to be continuously replenished liquid helium during follow-up operation, increase magnet operation and maintenance cost.
The most how to solve the problems such as tube for transfusion group is the most easy to plug, poorly sealed, be that those skilled in the art are presently required
Solve the technical problem that.
Summary of the invention
It is an object of the invention to provide the tube for transfusion group of a kind of cryogenic magnet chiller, the design of its structure can solve
The problems such as tube for transfusion group of determining is the most easy to plug, poorly sealed.It is a further object of the present invention to provide one and include above-mentioned tube for transfusion group
Cryogenic magnet chiller.
For solving above-mentioned technical problem, the present invention provides the tube for transfusion group of a kind of cryogenic magnet chiller, including
Upper tubing, lower tube for transfusion, for connecting described upper tubing and the joint of described lower tube for transfusion and base, described base sets
Having bellmouth, one end that described bellmouth diameter is less connects with described lower tube for transfusion, and one end of described joint is defeated with described
Liquid pipe is fixing to be connected, and the other end is to mate, with described bellmouth, the cone being connected.
Preferably, described joint and described base use Morse's taper to removably connect.
Preferably, described base being additionally provided with floor, described floor is provided with the through hole for installing bolt.
Preferably, described joint is politef joint, and described base is rustless steel base.
Preferably, described upper tubing and described lower tube for transfusion are stainless steel tube.
Preferably, described upper tubing is connected with described joint screw thread.
Preferably, described upper tubing is machined with external screw thread, described joint is machined with and coordinates with described external screw thread even
The female thread connect.
Preferably, described lower tube for transfusion is welded to connect with described base.
The present invention also provides for a kind of cryogenic magnet chiller, including for place superconducting magnet Dewar and for
Inputting the tube for transfusion group of coolant in described Dewar, described tube for transfusion group is specially the tube for transfusion described in above-mentioned any one
Group.
Preferably, described lower tube for transfusion bends at described Dewar arc, and the lower end of described lower tube for transfusion is close to described
The bottom of Dewar.
The tube for transfusion group of cryogenic magnet chiller that the present invention provides, including upper tubing, lower tube for transfusion, for
Connecting upper tubing and the joint of lower tube for transfusion and base, base is provided with bellmouth, the less one end of bellmouth diameter with under
Tube for transfusion connects, and one end of joint is fixing with upper tubing to be connected, and the other end is to mate, with bellmouth, the cone being connected.
Upper tubing, joint, base and lower tube for transfusion are sequentially connected with, and joint and base use taper fit to connect, and make
Obtaining joint i.e. upper tubing and be prone to plug, simple to operation, in Dewar, fill liquid helium is complete and coil drops to superconduction temperature
After degree, by joint, upper tubing can be extracted in Dewar, it is to avoid heat imports inside Dewar along upper tubing.
It addition, tapering connection sealing is good, in the case of joint or seat wear, still ensure that between the two
Bellmouth in sealing, and base can also play guide effect for the installation of joint, enables joint to be readily inserted into base also
Automatic alignment positions, when fill coolant, it is possible to avoid coolant to flow to coil from junction, during discharge opeing nitrogen, and can be by liquid
Nitrogen thoroughly drains only, promotes and fills helium efficiency, saves liquid helium.
The cryogenic magnet chiller that the present invention provides includes above-mentioned tube for transfusion group, owing to above-mentioned tube for transfusion group has
Above-mentioned technique effect, above-mentioned cryogenic magnet chiller also should have same technique effect, no longer be discussed in detail at this.
Accompanying drawing explanation
Fig. 1 is a kind of detailed description of the invention of the tube for transfusion group of cryogenic magnet chiller provided by the present invention
Structural representation；
Fig. 2 is the structural representation of a kind of detailed description of the invention of cryogenic magnet chiller provided by the present invention
Figure.
Detailed description of the invention
The core of the present invention is to provide the tube for transfusion group of a kind of cryogenic magnet chiller, and the design of its structure can solve
The problems such as tube for transfusion group of determining is the most easy to plug, poorly sealed.Another core of the present invention is to provide one and includes above-mentioned tube for transfusion group
Cryogenic magnet chiller.
In order to make those skilled in the art be more fully understood that the present invention program, below in conjunction with the accompanying drawings and detailed description of the invention
The present invention is described in further detail.
Refer to the one of the tube for transfusion group that Fig. 1 and Fig. 2, Fig. 1 are cryogenic magnet chiller provided by the present invention
Planting the structural representation of detailed description of the invention, Fig. 2 is a kind of concrete of cryogenic magnet chiller provided by the present invention
The structural representation of embodiment.
The tube for transfusion group of cryogenic magnet chiller that the specific embodiment of the invention provides, including upper tubing 1,
Lower tube for transfusion 4, for connecting upper tubing 1 and the joint 2 of lower tube for transfusion 4 and base 3, base 3 is provided with bellmouth, bellmouth
One end that diameter is less connects with lower tube for transfusion 4, and one end of joint 2 is fixing with upper tubing 1 to be connected, and the other end is and bellmouth
The cone that coupling connects.
Upper tubing 1, joint 2, base 3 and lower tube for transfusion 4 are sequentially connected with, and joint 2 and base 3 use taper fit even
Connect so that joint 2 i.e. upper tubing 1 is prone to plug, and simple to operation, in Dewar 7, fill liquid helium is complete and is dropped by coil 6
After superconducting temperature, by joint 2, upper tubing 1 can be extracted in Dewar 7, it is to avoid heat imports Dewar 7 along upper tubing 1
Internal.
It addition, tapering connection sealing is good, in the case of joint 2 or base 3 wear and tear, still ensure that between the two
Sealing, and the bellmouth on base 3 can also play guide effect for the installation of joint 2, makes joint 2 can be readily inserted into the end
Seat 3 automatic alignment location, when fill coolant, it is possible to avoid coolant to flow to coil 6 from junction, during discharge opeing nitrogen,
Liquid nitrogen thoroughly can be drained clean, promote and fill helium efficiency, save liquid helium.
Wherein need explanation time, upper tubing 1 is connected with base 3 by joint 2 with lower tube for transfusion 4, is cooled down outside
Liquid pours in Dewar 7, and the pipeline connected with outside coolant when upper tubing 1 is liquid filling, lower tube for transfusion 4 is for being completely disposed at Dewar
In 7, and guide the coolant into the pipeline in Dewar 7；Joint 2 is connected for mating with bellmouth for the one end being connected with base 3
Cone, i.e. the tapering in the tapering of this end of joint 2 hole upper conical with base 3 is identical.
On the basis of above-mentioned detailed description of the invention, preferred for ease of joint 2 and the processing of base 3, joint 2 and base 3
Employing Morse's taper removably connects, and Morse's taper is standard taper, and tapering is less, good airproof performance, and convenient disassembly, Ke Yiyong
Being accurately positioned when stationary fit.Certainly, the connection tapering of joint 2 and base 3 can also be according to practical situation from Row sum-equal matrix, only
Ensure connection sealing between the two, all within protection scope of the present invention.
On the basis of above-mentioned each detailed description of the invention, for the ease of the installation in Dewar 7 of the tube for transfusion group, at base 3
On be also provided with floor 5, floor 5 is provided with the through hole for installing bolt, when base 3 is arranged in Dewar 7, can
Floor 5 is connected with Dewar 7 by bolt, it is achieved fixing of base 3.
On the basis of above-mentioned each detailed description of the invention, joint 2 specifically can select politef joint 2, and base 3 can
To select rustless steel base 3；Politef anticorrosive anti-wear, coefficient of friction is little, makes to be more easy to insert between joint 2 and base 3
Pull out, rustless steel good processability, and corrosion-resistant low temperature resistant；It addition, joint 2 and base 3 use unlike material, use soft material with
The compound mode of hard material, can improve the sealing of tube for transfusion group further.Certainly joint 2 and base 3 can also use all
Use stainless steel, or use other materials such as polyethylene, also within protection scope of the present invention.
The tube for transfusion group of cryogenic magnet chiller that the specific embodiment of the invention provides, upper tubing 1 and under
Tube for transfusion 4 can all use stainless steel tube, stainless steel tube Low temperature-resistancorrosion-resistant corrosion-resistant, good airproof performance, and has certain toughness with strong
Degree, facilitates coolant to pour in Dewar 7, and ensure that upper tubing 1 does not directly contact with coil 6 with lower tube for transfusion 4.When
So, upper tubing 1 and lower tube for transfusion 4 can also use other materials such as polyethylene, also within protection scope of the present invention.
On the basis of above-mentioned each detailed description of the invention, upper tubing 1 has multiple connected mode to be connected, specifically with joint 2
Ground, upper tubing 1 can use with joint 2 threadeds, and threaded simple and reliable, easy installation and removal, at upper tubing 1
Or during joint 2 appearance damage, can be individually replaced, it is to avoid waste.
Due to upper tubing 1 usually thin wall pipelines, for convenience of processing, external screw thread can be machined with on upper tubing 1,
Joint 2 is machined with the female thread being connected with external screw thread, during connection, upper tubing 1 is screwed in joint 2.
On the basis of above-mentioned each detailed description of the invention, the cryogenic magnet cooling that the specific embodiment of the invention provides
The tube for transfusion group of device, lower tube for transfusion 4 can use with base 3 and be welded to connect, be welded to connect solid and reliable, and good airproof performance.
Certainly, lower tube for transfusion 4 can also use other connected modes such as screw rod is connected with base 3, also protection scope of the present invention it
In.
Except above-mentioned tube for transfusion group, the detailed description of the invention of the present invention also provides for a kind of cryogenic magnet chiller,
This cryogenic magnet chiller includes the Dewar 7 for placing superconducting magnet and for inputting coolant in Dewar 7
Above-mentioned tube for transfusion group, the structure of these cryogenic magnet other each several parts of chiller refer to prior art, the most superfluous
State.
The cryogenic magnet chiller that the specific embodiment of the invention provides, due to Du for placing superconducting magnet
Watts 7 usually annulars, for ease of the fill of coolant, prevent lower tube for transfusion 4 from encountering coil 6, and lower tube for transfusion 4 can be at Dewar 7
Arc bends；It addition, the lower end of lower tube for transfusion 4 is preferably close to the bottom of Dewar 7, when being possible to prevent fill, coolant is splashed
Encounter coil 6, it is ensured that coil 6 can monolithic stability cooling.
Above cryogenic magnet chiller provided by the present invention and tube for transfusion group thereof are described in detail.This
Applying specific case in literary composition to be set forth principle and the embodiment of the present invention, the explanation of above example is only intended to
Help to understand method and the core concept thereof of the present invention.It should be pointed out that, for those skilled in the art,
Without departing from the principles of the invention, it is also possible to the present invention is carried out some improvement and modification, these improve and modify also to fall
Enter in the protection domain of the claims in the present invention.
Claims (10)
1. the tube for transfusion group of a cryogenic magnet chiller, it is characterised in that include upper tubing, lower tube for transfusion, use
In connecting described upper tubing and the joint of described lower tube for transfusion and base, described base is provided with bellmouth, described bellmouth
One end that diameter is less connects with described lower tube for transfusion, and one end of described joint is fixing with described upper tubing to be connected, the other end
For mating, with described bellmouth, the cone being connected.
Tube for transfusion group the most according to claim 1, it is characterised in that described joint and described base employing Morse's taper can
Dismounting connects.
Tube for transfusion group the most according to claim 2, it is characterised in that be additionally provided with floor on described base, on described floor
It is provided with the through hole for installing bolt.
4. according to the tube for transfusion group described in claims 1 to 3 any one, it is characterised in that described joint is politef
Joint, described base is rustless steel base.
Tube for transfusion group the most according to claim 4, it is characterised in that described upper tubing and described lower tube for transfusion are not
Rust steel pipe.
Tube for transfusion group the most according to claim 5, it is characterised in that described upper tubing is connected with described joint screw thread.
Tube for transfusion group the most according to claim 6, it is characterised in that be machined with external screw thread on described upper tubing, described
The female thread being connected with described external screw thread it is machined with on joint.
Tube for transfusion group the most according to claim 6, it is characterised in that described lower tube for transfusion is welded to connect with described base.
9. a cryogenic magnet chiller, including for placing the Dewar of superconducting magnet and for defeated in described Dewar
Enter the tube for transfusion group of coolant, it is characterised in that it is defeated that described tube for transfusion group is specially described in claim 1 to 8 any one
Liquid pipe group.
Cryogenic magnet chiller the most according to claim 9, it is characterised in that described lower tube for transfusion is described
Dewar arc bends, and the bottom of described Dewar is close in the lower end of described lower tube for transfusion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611034650.3A CN106328338A (en) | 2016-11-18 | 2016-11-18 | Low-temperature superconducting magnet cooling device and liquid delivery pipe group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611034650.3A CN106328338A (en) | 2016-11-18 | 2016-11-18 | Low-temperature superconducting magnet cooling device and liquid delivery pipe group |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106328338A true CN106328338A (en) | 2017-01-11 |
Family
ID=57816729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611034650.3A Pending CN106328338A (en) | 2016-11-18 | 2016-11-18 | Low-temperature superconducting magnet cooling device and liquid delivery pipe group |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106328338A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107808733A (en) * | 2017-12-12 | 2018-03-16 | 合肥中科离子医学技术装备有限公司 | One kind is used for cryogenic system cooling plug-in woven hose |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01136316A (en) * | 1987-11-24 | 1989-05-29 | Japan Atom Energy Res Inst | Superconducting magnet |
| CN102299022A (en) * | 2011-08-16 | 2011-12-28 | 南京丰盛超导技术有限公司 | Mechanical heat switch for refrigerating machine to directly cool superconducting magnet |
| CN102436898A (en) * | 2011-12-07 | 2012-05-02 | 西部超导材料科技有限公司 | Cooling method of low-temperature superconducting magnet and system thereof |
| CN102758984A (en) * | 2011-04-25 | 2012-10-31 | 湖北欧博汽车部件有限公司 | Rapid insertion and pulling pipe joint |
| CN103219124A (en) * | 2013-04-26 | 2013-07-24 | 宁波健信机械有限公司 | High-temperature superconducting current lead with section capable of being pulled out and using externally supplied liquid nitrogen to cool |
| CN104217838A (en) * | 2014-09-19 | 2014-12-17 | 西安聚能超导磁体科技有限公司 | Composite pluggable current lead socket |
-
2016
- 2016-11-18 CN CN201611034650.3A patent/CN106328338A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01136316A (en) * | 1987-11-24 | 1989-05-29 | Japan Atom Energy Res Inst | Superconducting magnet |
| CN102758984A (en) * | 2011-04-25 | 2012-10-31 | 湖北欧博汽车部件有限公司 | Rapid insertion and pulling pipe joint |
| CN102299022A (en) * | 2011-08-16 | 2011-12-28 | 南京丰盛超导技术有限公司 | Mechanical heat switch for refrigerating machine to directly cool superconducting magnet |
| CN102436898A (en) * | 2011-12-07 | 2012-05-02 | 西部超导材料科技有限公司 | Cooling method of low-temperature superconducting magnet and system thereof |
| CN103219124A (en) * | 2013-04-26 | 2013-07-24 | 宁波健信机械有限公司 | High-temperature superconducting current lead with section capable of being pulled out and using externally supplied liquid nitrogen to cool |
| CN104217838A (en) * | 2014-09-19 | 2014-12-17 | 西安聚能超导磁体科技有限公司 | Composite pluggable current lead socket |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107808733A (en) * | 2017-12-12 | 2018-03-16 | 合肥中科离子医学技术装备有限公司 | One kind is used for cryogenic system cooling plug-in woven hose |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170111 |
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| RJ01 | Rejection of invention patent application after publication |