CN105590715B - The device and method of superconducting magnet cooling - Google Patents
The device and method of superconducting magnet cooling Download PDFInfo
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- CN105590715B CN105590715B CN201610145560.5A CN201610145560A CN105590715B CN 105590715 B CN105590715 B CN 105590715B CN 201610145560 A CN201610145560 A CN 201610145560A CN 105590715 B CN105590715 B CN 105590715B
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- heat pipe
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- superconducting magnet
- pulsating heat
- component
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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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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
- F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
- F28D15/0266—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes with separate evaporating and condensing chambers connected by at least one conduit; Loop-type heat pipes; with multiple or common evaporating or condensing chambers
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
- G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
- G01R33/38—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field
- G01R33/3804—Additional hardware for cooling or heating of the magnet assembly, for housing a cooled or heated part of the magnet assembly or for temperature control of the magnet assembly
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
- G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
- G01R33/38—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field
- G01R33/381—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field using electromagnets
- G01R33/3815—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field using electromagnets with superconducting coils, e.g. power supply therefor
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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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F5/00—Coils
- H01F5/02—Coils wound on non-magnetic supports, e.g. formers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
Abstract
The present invention provides a kind of methods of superconducting magnet component (100) and cooling superconducting magnets component (100), and the method includes being thermally connected pulsating heat pipe (10) and superconducting magnet component (100) and liquid refrigerant (44) is added to pulsating heat pipe (10).Superconducting magnet component (100) includes bobbin (102)；It is wound including coiling coil (102) and is configured to generate at least one superconducting solenoid formula magnet of at least one superconduction winding in magnetic field, and be thermally connected at least one pulsating heat pipe (10) at least one superconducting solenoid formula magnet.
Description
The application is the Chinese patent for being submission on March 31st, 2010 (priority date is on March 31st, 2009) applying date
Apply for the divisional application of No. 201010157068.2 (denomination of invention " device and method of superconducting magnet cooling ").
Cross reference to related applications
The application is related to entitled " APPARATUS AND METHOD FOR COOLING A in some respects
SUPERCONDUCTING MAGNETIC ASSEMBLY " (" device and method for being used for cooling superconducting magnets component "), specified generation
Manage people's file number be 226913-1 jointly owned Serial No. 12/415,357 U.S. Patent application, the patent application with
The application submits simultaneously, and its entire content is incorporated herein by reference.
Technical field
The present invention relates generally to the cooling of superconducting magnet, and more specifically to superconducting magnet component and for cooling down
The technique of superconducting magnet component.
Background technology
Various systems generate strong, uniform magnetic field, object or disease in the case of MRI system using superconducting magnet
People is placed in the magnetic field.Then, magnetic gradient coil and radio frequency transmission and receiving coil influence the gyromagnetic material of object, with evoke can
It is used to form the signal of useful image.System using this coil includes MRI system, Wave Spectrum system, magnetic energy storage
System and superconducting generator.
Superconducting magnet is typically embodied in cryostat, and cryostat includes making magnet and environment during operation
The heat shielding and vacuum tank of isolation.Superconducting magnet also has to support the coil support structure of coil windings, is embedded in
In solidifiable substance and helium vessel, for cooling down.Helium vessel is pressure vessel in vacuum tank to be thermally isolated, and typical
Ground includes liquid helium, to provide cooling for superconducting magnet, and will maintain about 4.2 temperature opened for being used for superconducting operation.
It is to provide helium refrigerant using the systematic great amount of cost of institute of superconducting magnet.Superconducting magnet initial start up and
It operates and magnet is maintained at pool boiling state and be required to helium or similar refrigerant (such as neon).Although in thermodynamics
On be efficient, but when being used in superconducting magnet component, complete helium bath needs about 1500 to rise to 2000 liters larger
The helium of volume.The helium of per unit volume is expensive, and be not always easy to get, and its cost is increasing.
Accordingly, it has been required to reduce superconducting magnet system manufacture and operating cost and/or simplify its design.
Invention content
The present invention is overcome in aforesaid drawbacks extremely by the method for providing superconducting magnet component and cooling superconducting magnets component
It is few, reduce the amount for the refrigerant needed for cooling superconducting magnets.More specifically, the present invention is intended to provide superconducting magnet
Component utilizes pulsating heat pipe, and thus simplifies design and assembling, and only needs very small amount of refrigerant.
Therefore, according to an aspect of the present invention, the method for cooling superconducting magnets component includes by pulsating heat pipe and superconduction
Magnet assembly is thermally connected and liquid refrigerant is added to pulsating heat pipe.
According to another aspect of the present invention, superconducting magnet component includes：Bobbin；It winds and is configured to including coiling coil
Generate at least one superconducting solenoid formula magnet of at least one superconduction winding in magnetic field；With thermal connection at least one superconducting solenoid
At least one two-phase heat-transfer arrangement on formula magnet.
In subsequent the detailed description and the accompanying drawings, various other feature and advantage of the invention will be apparent.
Description of the drawings
Attached drawing illustrates to be contemplated to for implementing one embodiment of the invention at present.
Fig. 1 is the schematic diagram in conjunction with the superconducting magnet component of the aspect of the present invention.
Fig. 2 is the perspective view according to the superconducting magnet component of the local cutting of the embodiment of the present invention.
Fig. 3 is the top viewgraph of cross-section of a part for the piping of the superconducting magnet component of Fig. 2.
Fig. 4 is the side viewgraph of cross-section of the condenser region of the superconducting magnet component of Fig. 2.
Fig. 5 is the side viewgraph of cross-section of the bobbin of the superconducting magnet component of Fig. 2.
Label list
10 two-phase heat-transfer arrangements/pulsating heat pipe
20 evaporator sections
30 condenser portions
32 carry the heat-exchange fin of fin
40 pipings
42 bendings
44 liquid refrigerants
46 refrigerants steep
100 superconducting magnet components
102 bobbins.
Specific implementation mode
The aspect of the present invention has been shown as providing the advantages of being better than the method for pervious cooling superconducting magnets.Cooling super
When magnetizer, the component that device and method of the invention do not need Mechanical Moving (for example, need not pump, need not supply outside
The supply system of pressure need not be used for the refrigeration " ice chest " of refrigerant supply, not need tank supply stream of helium etc.).It is described cold
But method is unrelated with orientation, is beneficial to the design, final physical volume and floor space of superconducting magnet component.It simplifies
The integrated design of piping in existing superconducting magnet geometry.Moreover, the pulsation heat used in aspect through the invention
The pulsation slug flow that pipe provides, can correct issuable any heat spot immediately.The further advantage that the design provides is not
Expensive helium bath cooling is needed, and any refrigerant is not lost during cooling (quench).The capillary piping proposed can
Bear the high pressure of several hectobars.Result it is not necessary to helium storage device.It is main letter not have helium storage device and its to freeze shell
Change, the reason is that, it is largely reduced needing additional all secure contexts.Moreover, because not being typically used for standard helium vessel
Conventional vertical neck or penetrability geometry, so magnet thermic load largely reduce and reduce.It is well known that penetrating
Or inlet port causes the leakage under high temperature of magnet.Desirable Curve guide impeller the result is that the available room temperature hole that can increase magnet is wide
Degree.In addition, further simplifying the suspension system kept in vacuum tank needed for helium vessel floating, and reduce heat leak.
Finally, the cooling system of superconducting magnet system is enormously simplified.
Referring to Fig.1 with 2, it is shown that in conjunction with the main member of the superconducting magnet component 100 of the aspect of the present invention.Superconducting magnet
Component 100 may include bobbin 102 (Fig. 2) and the superconduction winding that coiling coil 102 is wound, to including being configured to generate magnetic field
Superconducting magnet.Two-phase heat-transfer arrangement (such as pulsating heat pipe) 10 is thermally connected with superconducting magnet.Pulsating heat pipe 10 designs and structure
It causes to provide being fully cooled for superconducting magnet component 100.Pulsating heat pipe 10 may include any presently known or will develop later
Pulsating heat pipe system 10 out.For example, pulsating heat pipe 10 may include piping 40, condenser portion 30 and evaporator section 20.
Superconducting magnet component 100 may include wound on one or the screwed pipe of several magnet frame recesses.Magnet frame or line
Coil can be made of any suitable material, fiberglass reinforced plastics, synthetic material, metal (such as steel, aluminium, magnesium etc.),
Ceramics or combinations thereof.
By the way that first magnet is cooled to close to heat shielding temperature, liquid is partially filled with to pulsating heat pipe 10 (such as being piped 40)
State refrigerant.Then the high pressure gas to 40 filling of piping at room temperature.Magnet subcolling condenser convectively liquefies into piping 40
Gas, thus significantly reduce the gas pressure in piping 40, and generate refrigerant drop.In order to make piping 40 and other systems
Component is used as pulsating heat pipe 10, and refrigerant is filled less than 40 entire volume of volumes of piping.Therefore, although being piped 40 volumes
A part is filled with liquid refrigerant 44, but still has vapor coolant (such as refrigerant bubble 46) in rest part.Liquid
Refrigerant may include one kind in helium 4, helium 3, hydrogen, neon, nitrogen, oxygen, argon, krypton and combinations thereof.In other embodiments, foundation is used for
Other refrigerants appropriate can be used in the superconductor type of magnet.It has been found that the liquid in 40 part of piping of pulsating heat pipe 10
The heat that the various mixing of state refrigerant 44 and vapor coolant 46 are generated dissipation by superconducting magnet component 100 is effective.
For example, in certain embodiments, liquid refrigerant can be in the range of about 10% to about 90% to the ratio of the total volume of piping 40.
Similarly, in other embodiments, liquid refrigerant can be in the range of about 30% to about 70% to the ratio of the total volume of piping 40
It is interior.The remainder (part for being not filled by liquid refrigerant) of the total volume of piping 40 is (such as cold filled with vapor coolant
Freeze agent bubble 46).Therefore, the percentage of the fillable total volume for being piped 40 of vapor coolant is in the range of about 90% to about 10%.
In other embodiments, vapor coolant can be in the range of about 70% to about 30% to the ratio of the total volume of piping 40.With this
The mixing of mode, liquid refrigerant and vapor coolant being capable of cooling superconducting magnets component 100.
The condenser portion 30 of various constructions can be used.Condenser portion 30 can be crossflow heat exchanger, such as in Fig. 2
In depicted in, thereon have with fin heat-exchange fin 32.Heat exchanger can be by copper or other suitable materials
It is made.Direct thermo-contact may be present between condenser portion 30 and piping 40.Fig. 4 shows closed loop pulsating heat pipe 10 and its
The detailed view of joint between the upper condenser 30 with fin 32.Clearly for condenser portion 30, using other
Geometry and orientation, to fully provide for the cooling to superconducting magnet component 100.
Similarly, the evaporator section 20 of various constructions can be used.As shown in Fig. 2, evaporator section 20 can only need letter
Single epoxy resin coil frame.Result it is not necessary to be passed using the filler used in being designed in the prior art to increase the heat of frame
The property led.Although in the past 30 years endogenous development epoxide resin materials, synthetics etc. on paid sizable effort, but for
High thermal conductivity filler only obtains limited success in the heat propagation performance for increasing bobbin.Recently, heat sink material can
Embedded magnet frame.Although all these methods increase the cost of system, more importantly it is that they increase in magnet frame
Induce the risk of stress.Magnet frame may rupture, and crackle may be further after magnet cools down or heats up rapidly
It propagates.Cause superconducting magnet failure to be not without since epoxy resin ruptures and occurred.Under in terms of the present invention, avoid
For the needs of any heat propagation mechanism.
Although piping 40 is shown as snakelike, the closed system pattern separated in fig 1 and 2, in the reality of the present invention
Applying piping 40 in example can be arranged with a variety of constructions.Piping 40 may be disposed to closed loop or open cycle system.Piping 40 is shown in fig. 2
It is shown as the closed-loop system of two separations.First pulsating heat pipe 10 can be constructed in the peripheral of bobbin 20 or close to the outer of bobbin 20
It encloses, and endoporus of the second pulsating heat pipe 10 construction at the endoporus of bobbin 20 or close to bobbin 20.Piping 40 can be any
The independent pipe 40 (i.e. capillary) of quantity, from single pipe 40 to the pipe 40 close to an infinite number of separation.The geometry knot of each pipe 40
Structure can also change to the piping 40 wherein with repeatedly bending 42 from the straight tube 40 for extending to condenser by evaporator.Piping 40 can
It is arranged to the pattern of organized, snakelike and horizontal (or being slightly tilted), as depicted in figs. 1 and 2.In contrast, match
Pipe 40 may be disposed to non-repeatability, asymmetrical and/or nonplanar arrangement, and still provide to superconducting magnet component 100
Sufficient cooling device.The advantages of aspect of the present invention, is that weight can be completely independent of by being piped 40 geometry and arrangement
Power and orientation.In other words, the gravity and orientation of pulsating heat pipe 10 and piping 40 have no substantial effect on the liquid in pulsating heat pipe 10
Flowing with vapor coolant and cooling performance.For example, piping 40 can substantial horizontal, vertical or combinations thereof.In any situation
Under, be piped 40 geometry it is adjustable and be arranged to the bobbin winder bracket 102 of 40 hot linked superconducting magnet components 100 of piping or
The other element cooperations of person and matching.This allows the flexibility for increasing the manufacture size and arrangement of whole superconducting magnet component 100,
The reason is that cooling body will not typically need additional and/or a large amount of design space.
The end section of superconducting magnet component 100 is shown in Figure 5.Multiple pipings 40 are shown as essentially around bobbin
Periphery.Similarly, inner core of multiple pipings 40 essentially around bobbin.In this manner, pulsating heat pipe 10 can be generally
Effectively cool down bobbin and superconducting magnet component 100.Although Fig. 5 show piping 40 along bobbin axis generally longitudinally
Extend, it will be obvious that under in terms of the present invention, it is possible to be piped 40 other constructions.For example, for the coil of display
Frame, piping 40 can the periphery of coiling coil extend in (such as perpendicular to 40 directions for extending in Figure 5 of piping).
Size according to superconducting magnet component 100 and application, the total volume of all pipings 40 of pulsating heat pipe 10 can be big
In the range of about 10 milliliters to about 2 liters.Piping 40 can be any appropriate by copper and its alloy, aluminium and its alloy, steel etc.
Material is made.Alternatively, piping 40 can be the capillary of interior wrap or the piping 40 of forming.The internal diameter of piping 40 can be about
Within the scope of 1mm to about 8mm.Similarly, the diameter for being piped 40 need not be unified in the range of the whole length of piping 40, and
It is that can change on its length range.For example, the diameter in the piping 40 of condensation portion is comparable in the other of pulsating heat pipe 10
Part is small, to slow down the flow velocity of refrigerant.Similarly, be piped 40 cross section can be other shapes, such as rectangular, rectangle,
Elliptical shape etc..
The method of cooling superconducting magnets component 100 includes being thermally connected pulsating heat pipe 10 and superconducting magnet component 100.First
Piping 40 is evacuated, the refrigerant being then partially filled under high pressure is such as discussed in this article.It is partially filled with including inciting somebody to action
Filling liquid refrigerant 44 in the range of about 10% to about the 90% of the total volume of piping 40.The residual volume of piping 40 may include steaming
Vapour refrigerant (steeps 46).In this way, working fluid (i.e. refrigerant) is distributed naturally in the length range of piping 40
At completely different liquid refrigerant 44 and steam bubble 46.In this way, in the various pipe portions of the piping 40 of pulsating heat pipe 10
Dividing has different volume fluid/distribution of steam.When pulsating heat pipe 10 operates, each piping 40 at evaporator section 20
Divide and is heated because it abuts superconducting magnet component 100.Similarly, 40 parts of each piping at condenser portion 30 are cold
But.As a result, vapor coolant bubble 46 generates and/or increases in condenser zone, and in 30 atrophy of condenser portion and/or receipts
Contracting.This change of the size of steam bubble 46 concomitantly causes the transmission of liquid refrigerant 44 due to the swabbing action of bubble, most
Apparent heat is caused to be transmitted in pulsating heat pipe 10 eventually.The autoexcitation vibration of thermal induction starts.
Cooling equipment 10 can be designed according to aspects of the present invention so that steam bubble 46 has an opportunity in condenser portion 30
Lose their all potential heat, thus dimensionally atrophy.This requires steam bubble 46 in the resident of condenser portion 30
Time should be sufficient, so that steam bubble 46 condenses completely.Each steam bubble 46 carries the enthalpy of relatively small amount, more and more steam bubbles
46 should have an opportunity discharges their potential heat in condenser portion 30 so that their resultant effect exceeds may be because of them
It is present in conflicting disadvantage caused by being piped 40.There should be enough liquid refrigerants 44 in pulsating heat pipe 10, so as to
The heat being fully apparent from is transmitted.
An aspect of of the present present invention includes that the low thermal resistance of pulsating heat pipe 10 and good heat are transmitted.It has been found that in the present invention
Aspect under, with the increase of thermic load on evaporator section 20, the efficiency of pulsating heat pipe 10 correspondingly increases.Typically, right
In general (i.e. non-frozen dose) pulsating heat pipe, (i.e. the 30% of total volume is filled with non-frozen dose of liquid for 30% filling filling
Coolant), it is best filling filling for efficiency purposes.
Although superconducting magnet component can be cooled to about 4.2 for superconducting operation by the exemplary embodiment of the present invention
It opens, but other operation temperatures in addition to 4.2 open can be utilized without departing from the scope of the invention.For example, at this
Under the aspect of invention, the superconductor (such as HTS types or MgB2 types) with more high transition temperature can be cooled down.
Although embodiment illustrated and described herein can be with the superconducting magnet group of the part of magnetic resonance imaging (MRI) system
Part 100 is used together, but without departing from the scope of the invention, other superconducting magnet systems can utilize the present invention's
Aspect.For example, cooling equipment and cooling method can be used together with other superconducting magnets, such as nuclear magnetic resonance spectroscopy system
System, magnetic energy stocking system, superconducting generator, superconductive fault current limit, superconducting particles accelerator, magnetic separation system, fortune
Defeated system, superconducting cable, transformer, superconduction supercomputer, aerospace and aviation applications etc..
Therefore, according to one embodiment of present invention, the method for cooling superconducting magnets component includes by pulsating heat pipe and surpassing
Magnetizer component is thermally connected and liquid refrigerant is added to pulsating heat pipe.
According to another embodiment of the present invention, superconducting magnet component includes：Bobbin；It winds and constructs including coiling coil
At at least one superconducting solenoid formula magnet at least one superconduction winding for generating magnetic field；With thermal connection at least one superconduction spiral shell
At least one two-phase heat-transfer arrangement on tubular type magnet.
The present invention is described by preferred embodiment, and it is to be appreciated that in addition to these are expressly stated,
Equivalent, alternatives and modification are possible, and they are within the scope of the claims.
Claims (10)
1. the method for cooling superconducting magnets component (100), including：
At least one pulsating heat pipe (10) and the superconducting magnet component (100) are thermally connected；With
Magnet to be cooled is cooled to close to heat shielding temperature, liquid is partially filled at least one pulsating heat pipe (10)
State refrigerant (44)；And
To the high pressure gas of at least one pulsating heat pipe (10) filling at room temperature.
2. according to the method described in claim 1, it is characterized in that, the liquid refrigerant (44) include helium 4, helium 3, hydrogen, neon,
One kind in nitrogen, oxygen, argon, krypton and combinations thereof.
3. according to the method described in claim 1, it is characterized in that, the liquid refrigerant (44) fills at least one arteries and veins
The percentage of the total volume of dynamic heat pipe (10) is in the range of 10% to 90%.
4. according to the method described in claim 3, it is characterized in that, the liquid refrigerant (44) fills at least one arteries and veins
The percentage of the total volume of dynamic heat pipe (10) is in the range of 30% to 70%.
5. according to the method described in claim 1, it is characterized in that, the superconducting magnet component (100) is configured to be total to nuclear-magnetism
Vibration wave spectroscopy system, magnetic energy stocking system, superconducting generator, superconductive fault current limit, superconducting particles accelerator, magnetic point
It is used together with one in superconduction supercomputer from system, transportation system, superconducting cable, transformer.
6. according to the method described in claim 1, it is characterized in that, at least one pulsating heat pipe (10) is embedded in described surpass
In the epoxy resin structural (102) of magnetizer component (100).
7. superconducting magnet component (100), including：
Bobbin (102)；
It include at least one superconduction for winding and being configured to generate at least one superconduction winding in magnetic field around the bobbin (102)
Magnet；With
It is thermally connected at least one pulsating heat pipe (10) at least one superconducting magnet, wherein by magnet to be cooled
It is cooled to close to heat shielding temperature, liquid refrigerant (44) is partially filled at least one pulsating heat pipe (10)；And
Then the high pressure gas at least one pulsating heat pipe (10) filling at room temperature.
8. superconducting magnet component (100) according to claim 7, which is characterized in that the bobbin (102) is by heat transfer
Material is constituted.
9. superconducting magnet component (100) according to claim 7, which is characterized in that at least one pulsating heat pipe
(10) include piping (40) and condenser (30).
10. superconducting magnet component (100) according to claim 7, which is characterized in that at least one pulsating heat pipe
(10) total volume of the refrigerant (44,46) in is in the range of 10 milliliters to 2 liters.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US12/415313 | 2009-03-31 | ||
| US12/415,313 US20100242502A1 (en) | 2009-03-31 | 2009-03-31 | Apparatus and method of superconducting magnet cooling |
| CN201010157068A CN101859624A (en) | 2009-03-31 | 2010-03-31 | The equipment and the method for superconducting magnet cooling |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010157068A Division CN101859624A (en) | 2009-03-31 | 2010-03-31 | The equipment and the method for superconducting magnet cooling |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105590715A CN105590715A (en) | 2016-05-18 |
| CN105590715B true CN105590715B (en) | 2018-10-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610145560.5A Active CN105590715B (en) | 2009-03-31 | 2010-03-31 | The device and method of superconducting magnet cooling |
| CN201010157068A Pending CN101859624A (en) | 2009-03-31 | 2010-03-31 | The equipment and the method for superconducting magnet cooling |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201010157068A Pending CN101859624A (en) | 2009-03-31 | 2010-03-31 | The equipment and the method for superconducting magnet cooling |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20100242502A1 (en) |
| JP (1) | JP5809391B2 (en) |
| CN (2) | CN105590715B (en) |
| GB (1) | GB2469176B (en) |
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| EP2720351B1 (en) * | 2012-10-12 | 2017-04-26 | Siemens Aktiengesellschaft | Device for cooling a component of an electric machine by means of multiple cooling path |
| CN103001533A (en) * | 2012-11-27 | 2013-03-27 | 华北电力大学 | Method and system for utilizing loop type double working medium pulsating heat pipe to realize direct thermal power generation |
| CN103077797B (en) * | 2013-01-06 | 2016-03-30 | 中国科学院电工研究所 | For the superconducting magnet system of head imaging |
| GB2528919A (en) * | 2014-08-05 | 2016-02-10 | Siemens Plc | Superconducting magnet assembly |
| GB2529244B (en) * | 2014-08-15 | 2017-03-08 | Siemens Healthcare Ltd | A cooling arrangement for a superconducting magnet structure for an MRI system |
| CN106793713B (en) | 2016-11-30 | 2019-08-23 | 上海联影医疗科技有限公司 | PET imaging device and combined type medical system |
| CN106558392B (en) * | 2016-12-07 | 2018-05-29 | 上海空间电源研究所 | Superconducting magnet refrigerating mechanism |
| CN106683820B (en) * | 2017-03-28 | 2018-09-28 | 潍坊新力超导磁电科技有限公司 | A kind of hydronic radiation shield |
| TWI757553B (en) | 2017-10-13 | 2022-03-11 | 訊凱國際股份有限公司 | Impulse uniform temperature plate |
| TWI685638B (en) | 2018-09-14 | 2020-02-21 | 財團法人工業技術研究院 | Three dimensional pulsating heat pipe, three dimensional pulsating heat pipe assembly and heat dissipation module |
| TW202217214A (en) | 2020-10-19 | 2022-05-01 | 財團法人工業技術研究院 | Three dimensional pulsating heat pipe |
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- 2010-03-26 JP JP2010071270A patent/JP5809391B2/en active Active
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- 2010-03-31 CN CN201010157068A patent/CN101859624A/en active Pending
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| CN1580683A (en) * | 2003-08-06 | 2005-02-16 | 中国科学院电工研究所 | Low temperature heat tube for thermal switch |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN105590715A (en) | 2016-05-18 |
| JP5809391B2 (en) | 2015-11-10 |
| JP2010245523A (en) | 2010-10-28 |
| CN101859624A (en) | 2010-10-13 |
| GB2469176A (en) | 2010-10-06 |
| GB201004556D0 (en) | 2010-05-05 |
| US20100242502A1 (en) | 2010-09-30 |
| GB2469176B (en) | 2014-10-01 |
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