CN106440543A - Capsule type helium heat regenerator and low temperature refrigerator with heat regenerator - Google Patents
Capsule type helium heat regenerator and low temperature refrigerator with heat regenerator Download PDFInfo
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- CN106440543A CN106440543A CN201610858500.8A CN201610858500A CN106440543A CN 106440543 A CN106440543 A CN 106440543A CN 201610858500 A CN201610858500 A CN 201610858500A CN 106440543 A CN106440543 A CN 106440543A
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- capsule
- regenerator
- helium
- type helium
- capsule shape
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B40/00—Subcoolers, desuperheaters or superheaters
- F25B40/06—Superheaters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
- F25B9/14—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the cycle used, e.g. Stirling cycle
- F25B9/145—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the cycle used, e.g. Stirling cycle pulse-tube cycle
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
Abstract
The invention discloses a capsule type helium heat regenerator which comprises a hollow heat return pipe, and further comprises a plurality of capsule type cavities stacked in a cavity of the heat return pipe. The interiors of the capsule type cavities are filling zones, gaps between the capsule type cavities are working medium zones, and the wall face of each capsule type cavity is provided with a gas in-out hole for communicating the corresponding filling zone and the corresponding working medium zone. The invention further discloses a low temperature refrigerator with the heat regenerator. Fluid filling helium-4 is used in a liquid helium temperature zone to replace traditional special globular filling so as to exchange heat with working fluid helium-4, the efficiency of the refrigerator in the liquid helium temperature zone is improved to a certain degree, and the manufacturing cost of the low temperature refrigerator in the liquid helium temperature zone is saved.
Description
Technical field
The present invention relates to Cryo Refrigerator field, it is specifically related to a kind of capsule-type helium regenerator and carries this regenerator
Cryo Refrigerator.
Background technology
With the fast development of modern science and technology, space technology, superconductor technology, mechanics of communication and field of scientific study are for liquid
Helium warm area and following requirement of low temperature are more and more urgent, and stability, life-span etc. require also more and more higher, therefore liquid helium region low temperature
The research of refrigeration machine and application are more and more extensive.The refrigeration machine being applied to liquid helium region at present mainly has G-M refrigeration machine
With two kinds of philip refrigerators of vascular refrigerator, as its core component, its performance boost is to refrigeration machine performance for regenerator
Improving has great role.
As shown in figure 1, existing liquid helium region stirling-type vascular refrigerator structure, including the linear compression being sequentially connected
Machine 1, transfer tube 2, hot end heat exchanger 3, first paragraph regenerator 4, one-level precool heat exchanger device 5,6, the two grades of precoolings of second segment regenerator
Heat exchanger 7, the 3rd section of regenerator 8, cool end heat exchanger 9, vascular 10, phase modulating mechanism 11.Wherein one-level precool heat exchanger device 5 connection liquid
Nitrogen warm area refrigeration machine or liquid nitrogen storage tank and second segment regenerator 6 is carried out with precooling, two grades of precool heat exchanger devices 7 connect liquid hydrogen warm area systems
Cold or liquid hydrogen storage tank carry out precooling to the 3rd section of regenerator 8.3rd section of regenerator 8 is operated in 4K to 20K warm area, using spherical
Or granular magnetic regeneration filler.Phase modulating mechanism 11 is cryogenic inertial pipe and air reservoir or bidirection air intake, aperture are gentle
The pm modes such as storehouse, multi-channel shunt.
The course of work of liquid helium region vascular refrigerator is：Working fluid (helium -4) is produced periodically by Linearkompressor 1
The high pressure of change and low pressure, helium -4 is in first paragraph regenerator 4, second segment regenerator 6, the 3rd section of regenerator 8 and regeneration filler
Carry out heat exchange, carry out adiabatic compression and expansion in vascular 10.With this process repeatedly, first paragraph regenerator 4, second segment
The temperature of regenerator 6, the 3rd section of regenerator 8 and vascular 10 cold end reduces gradually, goes out to produce refrigeration in cool end heat exchanger 9.Phase modulation
Mechanism 11 is adjusted to the phase difference of quality stream in refrigeration machine and pressure wave, thus affecting the refrigeration performance of vascular refrigerator.
Existing liquid helium region vascular refrigerator still suffers from the low problem of refrigerating efficiency, limits its refrigerating efficiency and improves mainly
One of factor is the limited specific heat of 4K to 20K warm area regeneration filler.Although have now been developed a variety of particular fillers, they are only
Big in limited local warm area specific heat, and manufacturing cost is costly.The volume Specific Heat Capacity of different regenerator matrixs and helium -4
As shown in Figure 2：In addition to stainless steel and lead, the specific heat of other fillers is more than helium -4 in the regional area of 4K to 20K warm area, because
This these filler plays critically important effect in liquid helium region refrigeration machine；In addition the specific heat of helium -4 4K to 20K warm area with
More than 100K warm area difference is very big, and in 4K to 20K warm area, compared with arbitrary regeneration filler, in most of region, specific heat is bright for helium -4
Aobvious bigger.And helium -4 purchasing price is relatively low.Therefore, some are being using helium -4 as the research of liquid helium region refrigeration machine regeneration filler just
Carry out.
Such as document number is the patent document GOLDOWSKY M P, Regenerator for closed of US4359872-A
cycle cryogenic coolers-employs helium filled glass spheres held in
It is method using mechanical engineering thermodynamics that cylindrical container proposes a kind of, and helium -4 is inflated to a portion
In part, but the helium in part -4 and its outside working fluid helium -4 carry out heat exchange processed complex, involve great expense；Such as literary composition again
Piece number is the patent document JONES J A of US4835973-A, PETRICK W, BRITCLIFFE M J, Cryogenic
regenerator including saran carbon heat conduction matrix-adsorbs helium into
matrix when combination exhibits higher volumetric specific heat leading to
Lower refrigerator temperatures proposes a kind of special nano material with absorbing helium -4, the helium -4 of absorption and
By working fluid helium -4 heat exchange of nano material.
But no matter which kind of method, gets a desired effect not yet.Its main cause is that heat exchange area is little and porosity is low, changes
Heat is not enough and droop loss is big.And technical sophistication, difficulty of processing is big.
Content of the invention
The invention provides a kind of capsule-type helium regenerator, this helium -4 regenerator is applied to 4K to 20K warm area, replaces existing
The spherical or particulate magnetic regeneration filler having, using new heat transfer mechanism, improves the refrigerating efficiency of liquid helium region refrigeration machine.
A kind of capsule-type helium regenerator, including the product heat cal rod of hollow, in the cavity that also includes be stacked on described product heat cal rod
Multiple capsule shape cavitys, the inside of described capsule shape cavity is packing area, and the gap between each capsule shape cavity is working medium area, often
The gas manhole appendix in connection packing area and working medium area is had on the wall of individual capsule shape cavity.
In technique scheme, when being filled with working medium helium -4 in the capsule-type helium regenerator of refrigeration machine, part helium -4 passes through
Gas manhole appendix enters capsule shape cavity, becomes filler helium -4, is working medium helium -4 in the gap outside capsule shape cavity；Refrigeration machine is transported
During row, in described capsule shape cavity, with the capsule height change of power pressure outward, some passes in and out filler helium -4 from gas
Hole passes in and out capsule shape cavity, carries out quality and the exchange of heat with working medium helium -4, stays the filler helium -4 in capsule shape cavity
By the wall indirect heat exchange of capsule shape cavity.
Preferably, described capsule shape cavity is spheroid or spheroid.It is that contact area is little, to subtract between capsule and capsule
The conductive heat loss of little regenerator matrix.
Consider convenient processing and reduce axial thermal conductivity it is preferred that three radius relationship of described spheroid are 1/2c<a
=b<C, wherein c are polar radius, and c is axial arranged along product heat cal rod, and a, b are equatorial radius, along the radial arrangement of product heat cal rod.
Preferably, the capsule shape cavity of described stacking adopts rapid shaping technique to fabricate, without mould, cutter and work
Be installed tool, directly quickly produces product according to product design (CAD) data, and realizes the complicated space structure of product.
Preferably, described working medium area accounts for the 30%～50% of the described total volume of hollow of product heat cal rod.Every layer of regenerator
Arrangement capsule is more, and the number of plies is more, and that is, capsule quantity is more, then working medium helium -4 and the heat exchange area of regeneration filler helium -4 are got over
Greatly, heat exchange efficiency is higher.
Preferably, the size of all capsule shape cavitys is identical, is placed with multilayer continuously in axial direction, and every layer is provided with multiple capsules
Shape cavity.It is further preferred that the capsule shape cavity of adjacent layer aligns in the axial direction.Stacked capsules in axial direction should neatly be arranged
Row, to reduce the resistance of working medium helium -4 runner, reduce regenerator droop loss.
Preferably, the material selection thermal conductivity of described capsule shape cavity is big, the metal material of easy processing or composite, such as
Stainless steel and ceramic material etc..
Capsule shape cavity is thin walled cavity it is preferred that the wall thickness of described capsule shape cavity is 0.1～1mm.Strong to ensure
Degree reduces working medium helium -4 and the indirect heat exchange loss of regeneration filler helium -4 simultaneously.
Preferably, described gas manhole appendix is circular port, and aperture is 0.3～1 times of the described wall thickness of capsule shape cavity.
In the present invention, product heat cal rod can be fastened in outside stacked capsules shape cavity, can also be to be integrally formed and be fabricated by, excellent
Choosing, the capsule shape cavity of described product heat cal rod and all stackings is formed in one.Said structure can improve the work of product heat cal rod
Make stability.
Present invention also offers a kind of Cryo Refrigerator, at least one regenerator is using above-mentioned capsule-type helium backheat
Device.
Above-mentioned described Cryo Refrigerator typically adopts helium -4 as working fluid.
Preferably, described Cryo Refrigerator is returned using described capsule-type helium in the regenerator positioned at 4K to 20K warm area
Hot device.
Preferably, described Cryo Refrigerator is multi-stage pulse tube refrigeration machine, and multilevel hierarchy can be thermal coupling structure or gas
Coupled structure, series can be two-stage, three-level, level Four etc., wherein three-level stirling-type vascular refrigerator structure, including connecting successively
The compressor that connects, transfer tube, hot end heat exchanger, first paragraph regenerator, one-level precool heat exchanger device, second segment regenerator, two grades pre-
Cold heat exchanger, capsule-type helium regenerator, cool end heat exchanger, vascular, phase modulating mechanism.One-level precool heat exchanger device connects liquid nitrogen temperature
Refrigeration machine or liquid nitrogen storage tank connect liquid hydrogen warm area refrigeration machine to obtain pre- cold, glue obtaining pre- cold, two grades of precool heat exchanger devices
Bladder type helium regenerator is located at 4K～20K warm area, i.e. the capsule-type helium regenerator of the present invention.The hot junction of vascular and phase modulating mechanism
With two grades of precool heat exchanger device thermal couplings.Phase modulating mechanism can be inertia tube and air reservoir or bidirection air intake valve group.
Beneficial effects of the present invention：
(1) the capsule-type helium regenerator of the present invention, is not required to buy and make the special spherical regeneration filler of costliness, but
By the use of being relatively easy to the helium -4 obtaining as regeneration filler, reduce making and the use cost of regenerator.
(2) the capsule-type helium regenerator of the present invention, filler helium -4 enters when refrigeration machine is inflated and has gas turnover
The capsule shape cavity in hole, filling is convenient.
(3) the capsule-type helium regenerator of the present invention and the Cryo Refrigerator with this regenerator, make in liquid helium region
Replace traditional special ball filler and working fluid helium -4 heat exchange with fluid filler helium -4, liquid helium can be improved to a certain extent
The efficiency of warm area refrigeration machine, and save the manufacturing cost of liquid helium region Cryo Refrigerator.
Brief description
Fig. 1 is the structural representation of the liquid helium region stirling-type vascular refrigerator of prior art.
Fig. 2 is the volume Specific Heat Capacity figure with helium -4 for traditional regeneration filler of existing liquid helium region use.
Fig. 3 is the structural representation of the capsule-type helium regenerator of the present invention.
Fig. 4 is cross-sectional schematic on A-A direction for the Fig. 3.
Fig. 5 is cross-sectional schematic on B-B direction for the Fig. 3.
Fig. 6 is the enlarged diagram of C portion in Fig. 4.
Fig. 7 is the enlarged diagram of D part in Fig. 5.
Fig. 8 is single capsule shape cavity course of work schematic diagram in the capsule-type helium regenerator of the present invention.
Fig. 9 is the liquid helium region stirling-type vascular refrigerator structural representation of the present invention.
Figure 10 is that three-level stirling-type vascular refrigerator 4～20K warm area of the present invention uses He-4 and HoCu2Regeneration filler
Refrigerating capacity result of calculation comparison diagram.
Figure 11 is that three-level stirling-type vascular refrigerator 4～20K warm area of the present invention uses He-4 and HoCu2Regeneration filler
The coefficient of performance (COP) result of calculation comparison diagram.
In figure:
1. Linearkompressor, 2. transfer tube, 3. hot end heat exchanger, 4. first paragraph regenerator, 5. one-level precool heat exchanger device, 6.
Second segment regenerator, 7. two grades of precool heat exchanger devices, 8. the 3rd section of regenerator, 9. cool end heat exchanger, 10. vascular, 11. phase modifiers
Structure, 12. capsule-type helium regenerators, 13. product heat cal rods, 14. capsule shape cavitys, 15. gas manhole appendixs, 18. capsule-type helium return
Hot device, 19. product heat cal rods, 20. capsule shape cavitys, 21. gas manhole appendixs.
Specific embodiment
As shown in figure 3 to figure 7, the capsule-type helium regenerator of the present embodiment includes the glue of stacking in product heat cal rod 13 and product heat cal rod
Cryptomere cavity 14, each capsule wall is furnished with a gas manhole appendix 15.
The capsule shape cavity 14 with gas manhole appendix 15 of stacking can be processed by rapid shaping technique, product heat cal rod 13
The modes such as clamping can be led between the capsule shape cavity 14 of stacking to be connected, or as entirely through rapid shaping technique processing.
As shown in figure 8, when Cryo Refrigerator is filled with. taking a capsule shape cavity 14 in capsule-type helium regenerator as a example
During working fluid helium -4, a part of helium -4 enters capsule shape cavity 14 by gas manhole appendix 15, becomes filler helium -4, remaining
The gap that helium -4 stays capsule shape cavity 14 becomes working medium helium -4.Work as refrigerator operation, the work in capsule-type helium regenerator 12
Matter helium -4 makees Oscillating flow, and its speed wave is close to sine curve.The filler helium -4 of close gas manhole appendix 15 is with working medium helium -4
Pressure change and input and output gas manhole appendix 15, carry out quality and the exchange of heat with working medium helium -4；Most of filler helium -4 is stayed
In capsule shape cavity 14, indirect heat exchange is carried out by thin-wall face and working medium helium -4.The work of capsule-type helium regenerator 12 is institute
There is the summation of the heat transfer process of single capsule shape cavity 14.
Consider convenient processing and reduce axial thermal conductivity, three radius relationship of the spheroid of the present embodiment are 2/3c=a=
B, wherein c are polar radius, and c is axial arranged along product heat cal rod, and a, b are equatorial radius, along the radial arrangement of product heat cal rod.
The working medium area of the present embodiment accounts for the 40% of the described total volume of hollow of product heat cal rod.Every layer of arrangement capsule of regenerator is got over
Many, and the number of plies is more, that is, capsule quantity is more, then working medium helium -4 is bigger with the heat exchange area of regeneration filler helium -4, heat exchange efficiency
Higher.
The size of all capsule shape cavitys 14 is identical, is placed with multilayer continuously in axial direction, and every layer is provided with multiple capsule shape chambeies
Body 14.The capsule shape cavity 14 of adjacent layer aligns in the axial direction.Stacked capsules in axial direction answer proper alignment, to reduce working medium
The resistance of helium -4 runner, reduces regenerator droop loss.
The material selection thermal conductivity of capsule shape cavity 14 is big, the metal material of easy processing or composite, and the present embodiment is adopted
With stainless steel and ceramic material.
Capsule shape cavity 14 is thin walled cavity, and the wall thickness of capsule shape cavity 14 is 0.5mm.Work is reduced with proof strength simultaneously
The indirect heat exchange loss of matter helium -4 and regeneration filler helium -4.Gas manhole appendix 15 is circular port, and aperture is 0.3mm.
As shown in figure 9, the liquid helium region stirling-type vascular refrigerator of the present embodiment, including the linear compression being sequentially connected
Machine 1, transfer tube 2, regenerator hot end heat exchanger 3, first paragraph regenerator 4, one-level precool heat exchanger device 5, second segment regenerator 6, two
Level precool heat exchanger device 7, capsule-type helium regenerator 12, cool end heat exchanger 9, vascular 10, phase modulating mechanism 11, wherein one-level precooling is changed
Hot device 5 is connected with liquid nitrogen temperature refrigeration machine cold end or liquid nitrogen storage tank to obtain pre- cold, two grades of precool heat exchanger devices 7 and liquid hydrogen warm area
Refrigeration machine cold end connects to obtain pre- cold.The hot junction of vascular 10 and phase modulating mechanism 11 are connected with two grades of precool heat exchanger devices, low
The lower phase modulation ability of temperature improves phase modulation ability.Phase modulating mechanism 11 is made up of inertia tube and air reservoir or bidirection air intake valve group.
The work of the capsule-type helium regenerator 12 of the present embodiment is the heat transfer process of all single capsule shape cavitys 14
Summation.Taking a capsule shape cavity 14 in capsule-type helium regenerator 12 as a example, when Cryo Refrigerator be filled with working fluid helium-
When 4, a part of helium -4 enters capsule shape cavity 14 by gas manhole appendix 15, becomes filler helium -4, remaining helium -4 stays capsule
The gap of shape cavity 14 becomes working medium helium -4.Work as refrigerator operation, as shown in figure 5, the working medium in capsule-type helium regenerator 12
Helium -4 makees Oscillating flow, and its speed wave is close to sine curve.Near gas manhole appendix 15 fraction filler helium -4 with working medium helium -
4 pressure change and input and output gas manhole appendix 15, carry out quality and the exchange of heat with working medium helium -4；Most of filler helium -4 stays
In capsule shape cavity 14, indirect heat exchange is carried out by thin-wall face and working medium helium -4.
With existing liquid helium region using special ball filler compare, the capsule-type helium regenerator of the present invention is larger
Temperature range, regeneration filler has higher volumetric specific heat capacity, and less heat conduction, and the resistance of working medium helium -4 runner is more
Little.The regenerator of the therefore present invention can significantly improve heat exchange amount, reduces conductive heat loss and droop loss, improves regenerator effect
Rate.
The Cryo Refrigerator with capsule-type helium regenerator of the present invention, because improving in liquid helium region THERMAL REGENERATOR EFFICIENCIES,
Refrigeration machine performance also gets a promotion.And regeneration filler helium -4 easily obtains than rare magnetic regeneration filler, rapid shaping technique
Maturation, processing capsule shape cavity easily, reduces cost and the difficulty of Cryo Refrigerator.
Set up numerical value using three-level stirling-type vascular refrigerator structure according to Fig. 9 for the refrigeration machine software for calculation Sage
Simulation model, in 4～20K warm area regenerator, changes conventional granulated filler HoCu2Physical property (density, thermal conductivity and
Specific heat at constant pressure) for He-4 physical property, carry out calculate and and HoCu2Comparison of computational results as filler.Result is as schemed
Shown in 10 and 11, with He-4 as 4～20K warm area regenerator matrix, the obtainable refrigerating capacity of cold end and the refrigeration machine coefficient of performance
(COP) there is growth.
What said above is only the preferred embodiments of the present invention, not thereby limits the patent protection model of the present invention
Enclose, the equivalent arrangements conversion that every utilization description of the invention and accompanying drawing content are made, can apply in other 4K cryogenic refrigerations
The relevant technical field of machine, is all included within the scope of the present invention in the same manner.
Claims (10)
1. a kind of capsule-type helium regenerator, the product heat cal rod including hollow is it is characterised in that also include being stacked on described product heat cal rod
Cavity in multiple capsule shape cavitys, the inside of described capsule shape cavity is packing area, and the gap between each capsule shape cavity is
Working medium area, the wall of each capsule shape cavity has the gas manhole appendix in connection packing area and working medium area.
2. capsule-type helium regenerator as claimed in claim 1 it is characterised in that described capsule shape cavity be spheroid or
Spheroid.
3. capsule-type helium regenerator as claimed in claim 2 is it is characterised in that three radius relationship of described spheroid
For 1/2c<A=b<C, wherein c are polar radius, and c is axial arranged along product heat cal rod, and a, b are equatorial radius, along the radial direction of product heat cal rod
Arrangement.
4. capsule-type helium regenerator as claimed in claim 1 is it is characterised in that described working medium area accounts for described product heat cal rod
Total volume of hollow 30%～50%.
5. capsule-type helium regenerator as claimed in claim 1 is it is characterised in that the size of all capsule shape cavitys is identical,
It is placed with multilayer continuously in axial direction, every layer is provided with multiple capsule shape cavitys.
6. capsule-type helium regenerator as claimed in claim 5 it is characterised in that the capsule shape cavity of adjacent layer in the axial direction
Alignment.
7. capsule-type helium regenerator as claimed in claim 1 is it is characterised in that the wall thickness of described capsule shape cavity is
0.1～1mm.
8. the capsule-type helium regenerator as described in claim 1 or 7 it is characterised in that described gas manhole appendix be circular port,
Aperture is 0.3～1 times of the described wall thickness of capsule shape cavity.
9. capsule-type helium regenerator as claimed in claim 1 is it is characterised in that the glue of described product heat cal rod and all stackings
Cryptomere cavity is formed in one.
10. a kind of Cryo Refrigerator is it is characterised in that at least one employing of regenerator such as right of described Cryo Refrigerator will
Seek the capsule-type helium regenerator described in 1～9 any claim.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610858500.8A CN106440543A (en) | 2016-09-28 | 2016-09-28 | Capsule type helium heat regenerator and low temperature refrigerator with heat regenerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610858500.8A CN106440543A (en) | 2016-09-28 | 2016-09-28 | Capsule type helium heat regenerator and low temperature refrigerator with heat regenerator |
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| CN106440543A true CN106440543A (en) | 2017-02-22 |
Family
ID=58170713
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| CN201610858500.8A Pending CN106440543A (en) | 2016-09-28 | 2016-09-28 | Capsule type helium heat regenerator and low temperature refrigerator with heat regenerator |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108019969A (en) * | 2017-12-15 | 2018-05-11 | 陕西仙童科技有限公司 | A kind of cold end device for refrigeration machine |
| CN108444154A (en) * | 2018-04-09 | 2018-08-24 | 杨厚成 | A kind of regenerator of built-in spherical fillers |
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| JPH03117855A (en) * | 1989-09-29 | 1991-05-20 | Mitsubishi Electric Corp | Chiller type cryogenic refrigerator |
| KR100204849B1 (en) * | 1997-02-10 | 1999-06-15 | 박원훈 | Combined type regenerator for stirling cycle machine |
| CN1621483A (en) * | 2004-10-22 | 2005-06-01 | 清华大学 | Microcapsule type phase change cold accumulation agent for air conditioner cold accumulation and method for preparing same |
| CN101555401A (en) * | 2008-04-10 | 2009-10-14 | 中国科学院化学研究所 | Microcapsule of organic phase change energy storage material and preparation method thereof |
| CN102812311A (en) * | 2010-03-19 | 2012-12-05 | 住友重机械工业株式会社 | Cold storage apparatus, gifford-mcmahon cooler, and pulse tube refrigerator |
-
2016
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03117855A (en) * | 1989-09-29 | 1991-05-20 | Mitsubishi Electric Corp | Chiller type cryogenic refrigerator |
| KR100204849B1 (en) * | 1997-02-10 | 1999-06-15 | 박원훈 | Combined type regenerator for stirling cycle machine |
| CN1621483A (en) * | 2004-10-22 | 2005-06-01 | 清华大学 | Microcapsule type phase change cold accumulation agent for air conditioner cold accumulation and method for preparing same |
| CN101555401A (en) * | 2008-04-10 | 2009-10-14 | 中国科学院化学研究所 | Microcapsule of organic phase change energy storage material and preparation method thereof |
| CN102812311A (en) * | 2010-03-19 | 2012-12-05 | 住友重机械工业株式会社 | Cold storage apparatus, gifford-mcmahon cooler, and pulse tube refrigerator |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108019969A (en) * | 2017-12-15 | 2018-05-11 | 陕西仙童科技有限公司 | A kind of cold end device for refrigeration machine |
| CN108019969B (en) * | 2017-12-15 | 2024-04-09 | 陕西仙童科技有限公司 | Cold end device for refrigerator |
| CN108444154A (en) * | 2018-04-09 | 2018-08-24 | 杨厚成 | A kind of regenerator of built-in spherical fillers |
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