CN207196990U - A kind of Stirling vascular mixing cold finger using post spring phase modulation - Google Patents
A kind of Stirling vascular mixing cold finger using post spring phase modulation Download PDFInfo
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- CN207196990U CN207196990U CN201721054784.1U CN201721054784U CN207196990U CN 207196990 U CN207196990 U CN 207196990U CN 201721054784 U CN201721054784 U CN 201721054784U CN 207196990 U CN207196990 U CN 207196990U
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- 230000002792 vascular Effects 0.000 title claims abstract description 52
- 230000007704 transition Effects 0.000 claims abstract description 6
- 238000003780 insertion Methods 0.000 claims description 8
- 230000037431 insertion Effects 0.000 claims description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims 1
- 238000005057 refrigeration Methods 0.000 abstract description 24
- 230000007246 mechanism Effects 0.000 description 7
- 230000008901 benefit Effects 0.000 description 4
- 230000006872 improvement Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 206010016766 flatulence Diseases 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035772 mutation Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
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Abstract
It the utility model is related to a kind of Stirling vascular mixing cold finger using post spring phase modulation, including expansion cylinder and vascular housing.Expansion cylinder includes expansion cylinder body, hot junction distribution seat, cold cap and the connecting tube and transition conduit being connected on expansion cylinder body with hot junction cavity.It is embedded in the distribution seat of hot junction that the mechanical phase modulation apparatus being coaxially disposed with vascular housing is installed.Mechanical phase modulation apparatus includes being arranged on the spring fixed seat of hot junction distribution seat outer end, is arranged on hot junction distribution seat inner end and the hot junction spring base coordinated with hot junction distribution seat gap and the cylindrical spring that is connected between spring fixed seat and hot junction spring base.The utility model substitutes the gas pm modes such as Hole and air reservoir traditional in vascular refrigerator, inertia tube air reservoir with mechanical phase modulation apparatus, refrigeration machine phase adjusted can be realized by adjusting spring parameter, realize that Effective power reclaims, efficiency of refrigerator can be effectively lifted from theoretical and practical application.
Description
Technical field
It the utility model is related to refrigeration machine technical field, and in particular to a kind of Stirling-vascular using post spring phase modulation mixes
Close cold finger.
Background technology
Vascular refrigerator, sterlin refrigerator are the most commonly used small-sized machine Cryo Refrigerators of current application.Its work
General principle is basically identical, i.e., realizes refrigeration by Oscillating flow heat exchange of the Working medium gas in backheat unit.Vascular system
Phase difference in cold, sterlin refrigerator between Working medium gas pressure wave and quality stream has considerable influence to refrigeration machine performance,
Suitable phase modulating mechanism is improved for the performance of refrigeration machine and practical application is significant.Improvement for phase modulating mechanism is
One of Cryo Refrigerator primary study work in recent years.
Sterlin refrigerator phase modulating mechanism mainly has two kinds, and one kind is to use linear motor direct drive, the pm mode
By controlling the electric phase controlling gas phase of expanding machine motor and compressor linear electric motors, accurate phase controlling can be achieved,
But the volume, quality, energy consumption of complete machine can be increased, the double-drive stirling refrigeration machine developed such as Shanghai skill thing.One kind is to use
Mechanical elastic body phase modulation, conventional mechanical elastic body mainly has cylindrical spring, diaphragm spring etc., by mechanical elastic body
Elastic force phase modulation, such as French THALES companies UP series, LSF series refrigeration machines, using the recyclable heat of mechanical elastic body
Expansion work is held, helps to lift efficiency of refrigerator.But because sterlin refrigerator cold end has moving piston, therefore no matter use
Which kind of phase modulation apparatus, the shortcomings that mechanical noise and big cold end vibration output all be present.
Vascular refrigerator can regard the mutation of sterlin refrigerator as, and it uses the gas piston in vascular cavity to substitute motion
Piston, there is the advantages of long lifespan, reliability are high, cold end vibration output is small, mainly experienced so far from utility model following several
Kind pattern：Basic model, pinhole type, bidirection air intake type, inertia cast and various phase modulation type vascular refrigerators.Mikulin et al. pairs
Basic model vascular refrigerator has carried out certain structure and improved, i.e., a throttling pore is installed before vascular hot junction, and in hot junction
The air reservoir of a large volume is connected after heat exchanger to adjust gas pressure ripple and quality stream phase, but phase adjusted it is limited and
The presence of small ports valve consumes Effective power.
Zhu Shaowei of Xi'an Communications University et al. proposed after being improved on the basis of pinhole type phase modulating mechanism it is two-way enter
New departure of gas phase modulating mechanism, phase adjusted ability is improved, but bidirection air intake pm mode easily produces direct current, has a strong impact on
Refrigeration machine performance.
Kanao of Japan et al. proposes the concept of inertia tube vascular refrigerator, i.e., using the suitable capillary of one ruler cun
Refrigeration machine performance is improved instead of small ports valve, and is not likely to produce direct current, but inertia length of tube is general longer, the presence increase of air reservoir
Refrigeration machine volume, weight.Matsubara of Japan et al. also proposed dual-active plunger type vascular refrigerator, i.e., in vascular hot junction
An other compressor is connected afterwards so that the recyclable expansion work of refrigeration machine, is reduced and is lost caused by aperture, and then improves refrigeration
Machine performance, but the reliability of refrigeration machine is therefore reduced, add volume, weight and power consumption.
In addition, in the evolution of vascular refrigerator, also there are other a variety of follow-on vascular refrigerators, such as day
The inter-phasing vascular refrigerator that this scholar proposes, the variable cross-section type vascular refrigerator, Yuan et al. that American scholar proposes propose
Five valve-type vascular refrigerators.
In terms of comprehensive, the improvement of Current vascular refrigeration machine pm mode is main or based on gas pm mode, phase modulation
It is limited in one's ability and hot junction expansion work can not be reclaimed, cause refrigeration machine theoretical efficiency low.
Utility model content
The purpose of this utility model is to provide a kind of Stirling-vascular mixing cold finger using post spring phase modulation, the cold finger
The deficiencies in the prior art are can solve the problem that, refrigeration machine phase adjusted can be realized by adjusting spring parameter, realize Effective power
Recovery, efficiency of refrigerator can be effectively lifted from theoretical and practical application.
To achieve the above object, the utility model employs following technical scheme：
A kind of Stirling-vascular mixing cold finger using post spring phase modulation, including expansion cylinder and embedded be arranged on expand gas
The vascular housing being coaxially disposed in cylinder and with expansion cylinder；The expansion cylinder includes expansion cylinder body, installed in expansion cylinder
Hot junction distribution seat at the cavities open of body heat end, the cold cap at expansion cylinder body cold end cavities open and installed in swollen
The connecting tube and transition conduit being connected on flatulence cylinder body with hot junction cavity；Insertion is provided with and vascular shell in the hot junction distribution seat
The mechanical phase modulation apparatus that body is coaxially disposed；The spring that the mechanical phase modulation apparatus includes being arranged on hot junction distribution seat outer end is fixed
Seat, the hot junction spring base for being arranged on hot junction distribution seat inner end and coordinating with hot junction distribution seat gap and it is connected to spring and fixes
Cylindrical spring between seat and hot junction spring base.
Further, it is filled with looped wire between wall in the vascular housing exterior walls and expansion cylinder body.
Further, the centre of the hot junction distribution seat offers through hole, and the inner end inwall of through hole and vascular housing
Outer wall be fitted close；Spring fixed seat insertion is in the outer end of through hole, and spring base insertion in hot junction is installed in through hole
In inner end.
Further, it is filled with red copper silk screen in the expansion cylinder body cold end cavity.
Further, the hot junction spring base outer surface is coated with wear-resistant coating.
From above technical scheme, the utility model is substituted traditional small in vascular refrigerator with mechanical phase modulation apparatus
The gas pm modes such as hole-air reservoir, inertia tube-air reservoir, have the advantages that：
（1）Refrigeration machine phase adjusted can be realized by adjusting spring parameter, realize that Effective power reclaims, from theoretical and reality
Using above can effectively lifting efficiency of refrigerator.
（2）The increased volume such as air reservoir, inertia tube, weight are reduced, easily realizes vascular refrigerator miniaturization, lightweight,
Especially advantage is more prominent in High cooling power refrigeration machine cold fingers structure.
（3）Because mechanical phase modulation apparatus is separated with the cold chamber of refrigeration machine by the gas in vascular cavity, compared to stirling refrigeration
Machine, mechanical noise and cold end vibration output can be greatly lowered.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Wherein：
1st, spring fixed seat, 2, cylindrical spring, 3, hot junction distribution seat, 4, hot junction spring base, 5, expansion cylinder body, 6, vascular
Housing, 7, looped wire, 8, cold cap, 9, transition conduit, 10, connecting tube.
Embodiment
The utility model is described further below in conjunction with the accompanying drawings：
A kind of Stirling-vascular mixing cold finger using post spring phase modulation as shown in Figure 1, including expansion cylinder and embedded peace
The vascular housing 6 being coaxially disposed in expansion cylinder and with expansion cylinder.The expansion cylinder includes expansion cylinder body 5, peace
Hot junction distribution seat 3 at the hot junction cavities open of expansion cylinder body 5, at the cold end cavities open of expansion cylinder body 5
Cold cap 8 and the connecting tube 10 and transition conduit 9 being connected on expansion cylinder body 5 with hot junction cavity.The hot junction distribution
It is embedded in seat 3 that the mechanical phase modulation apparatus being coaxially disposed with vascular housing 6 is installed.The mechanical phase modulation apparatus includes being arranged on heat
The spring fixed seat 1 of the outer end of distribution seat 3 is held, is arranged on the inner end of hot junction distribution seat 3 and is coordinated with the gap of hot junction distribution seat 3
Hot junction spring base 4 and the cylindrical spring 2 being connected between spring fixed seat 1 and hot junction spring base 4.Bullet is filled in cold end cavity
Spring fixed seat 1, cylindrical spring 2 and hot junction spring base 4 form mechanical phase modulation apparatus, are the unique motion parts in total,
And with the coaxial straight line of vascular.The mechanical phase modulation apparatus is easy to adjust cylindrical spring effective length, so as to be easy to pass through tune
Pitch cylinder spring rate adjusts refrigeration machine phase.
Specifically, it is the benchmark that cold finger assembles with expansion cylinder body 5, cold cap 8 is welded in the cold end of expansion cylinder body
The opening of cavity.Connecting tube 10 be welded in transition conduit 9 together with after with expansion cylinder body weld, formed expansion cylinder, come
Expansion cylinder is passed in and out by connecting tube from the Working medium gas of compressor.Expansion cylinder cavity on the left of vascular housing is hot junction chamber
Body, the expansion cylinder cavity on right side are cold end cavity, and the region in vascular housing exterior walls and expansion cylinder body between wall is backheat
Unit.Spring fixed seat, cylindrical spring, hot junction spring base collectively constitute mechanical phase modulation apparatus, in vascular enclosure interior cavity
Gas associating phase modulation.Mechanical phase modulation apparatus uses mechanical elastic body, can effectively be reclaimed while phase adjusted is realized swollen
Swollen work(.
On the one hand the hot junction distribution seat is used for solid mechanical phase modulation apparatus, on the one hand completely cut off vascular enclosure interior hot junction gas
Body and regenerator hot junction gas, avoid hot junction from collaborating.
Further, the inside of vascular housing 6 is full of Working medium gas, coaxially arranged with expansion cylinder.The vascular shell
In external wall and expansion cylinder body looped wire 7 is filled between wall.Looped wire 7 forms backheat unit.
Further, the centre of the hot junction distribution seat 3 offers through hole, and the inner end inwall of through hole and vascular housing
6 outer wall is fitted close；Hot junction cavity gas can be so avoided to be collaborated with vascular enclosure interior hot junction gas.Spring is consolidated
The insertion of reservation 1 is in the outer end of through hole, and the insertion of hot junction spring base 4 is in the inner end of through hole.
Further, it is first as laminarization filled with high thermal conductivity red copper silk screen in the cold end cavity of expansion cylinder body 5
Part and cool end heat exchanger.The red copper silk screen is circle.
Further, the outer surface of hot junction spring base 4 is coated with wear-resistant coating, can for improve mechanical phase modulation apparatus
By property.
The course of work of the present utility model is：
Compression process, the Oscillating flow gas from compressor enter hot junction cavity, the friendship of hot junction cavity by connecting tube
Become flowing gas and enter backheat unit with entering after looped wire completion Oscillating flow heat exchange by cold end cavity in vascular housing
Portion, cylindrical spring is compressed in gas compression processes so as to store certain Effective power.Expansion process, Oscillating flow gas is along conversely
Path returns to compressor, so as to realize swell refrigeration.Working medium gas pressure wave can be realized by adjusting cylindrical spring effective rigidity
With the optimal phase adjustment of quality stream, efficiency of refrigerator is lifted.
Therefore, the problem of existing for current vascular refrigerator, sterlin refrigerator phase modulating mechanism, comprehensive two kinds of refrigeration machines
Structural advantages, the utility model designs a Stirling-vascular mixing cold finger using post spring phase modulation, in co-axial pulse tube system
Cold hot junction increases mechanical elastic body phase modulating mechanism.The coldfinger is substituted in vascular refrigerator using mechanical elastic body
Pm modes such as aperture-air reservoir, inertia tube-air reservoir, while retain the vascular structure in vascular refrigerator, and with vascular straight line cloth
Put, form mechanical elastic body-gas associating pm mode, compared to vascular refrigerator coldfinger, the coldfinger is in reality
While existing refrigerating device inner gas phase regulation, mechanical elastic body can effectively reclaim expansion work, further lift refrigeration machine
Efficiency, while reduce the increased volume such as air reservoir, inertia tube, weight；Compared to sterlin refrigerator coldfinger, vascular knot
The addition of structure, reduce mechanical noise and cold finger vibration output.
Embodiment described above is only that preferred embodiment of the present utility model is described, not to this practicality
New scope is defined, and on the premise of the utility model design spirit is not departed from, those of ordinary skill in the art are to this
The various modifications and improvement that the technical scheme of utility model is made, the protection of the utility model claims book determination all should be fallen into
In the range of.
Claims (5)
- A kind of 1. Stirling-vascular mixing cold finger using post spring phase modulation, it is characterised in that：Including expansion cylinder and embedded installation The vascular housing being coaxially disposed in expansion cylinder and with expansion cylinder；The expansion cylinder includes expansion cylinder body, is arranged on Hot junction distribution seat at the cavities open of expansion cylinder body heat end, the cold cap at expansion cylinder body cold end cavities open and The connecting tube and transition conduit being connected on expansion cylinder body with hot junction cavity；Insertion is provided with the hot junction distribution seat The mechanical phase modulation apparatus being coaxially disposed with vascular housing；The mechanical phase modulation apparatus includes being arranged on hot junction distribution seat outer end Spring fixed seat, be arranged on hot junction distribution seat inner end and with hot junction distribution seat gap coordinate hot junction spring base and be connected to Cylindrical spring between spring fixed seat and hot junction spring base.
- A kind of 2. Stirling-vascular mixing cold finger using post spring phase modulation according to claim 1, it is characterised in that：Institute State and be filled with looped wire in vascular housing exterior walls and expansion cylinder body between wall.
- A kind of 3. Stirling-vascular mixing cold finger using post spring phase modulation according to claim 1, it is characterised in that：Institute The centre for stating hot junction distribution seat offers through hole, and the outer wall of the inner end inwall of through hole and vascular housing is fitted close；Spring Fixed seat insertion is in the outer end of through hole, and spring base insertion in hot junction is in the inner end of through hole.
- A kind of 4. Stirling-vascular mixing cold finger using post spring phase modulation according to claim 1, it is characterised in that：Institute State and red copper silk screen is filled with expansion cylinder body cold end cavity.
- A kind of 5. Stirling-vascular mixing cold finger using post spring phase modulation according to claim 1, it is characterised in that：Institute State hot junction spring base outer surface and be coated with wear-resistant coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721054784.1U CN207196990U (en) | 2017-08-22 | 2017-08-22 | A kind of Stirling vascular mixing cold finger using post spring phase modulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721054784.1U CN207196990U (en) | 2017-08-22 | 2017-08-22 | A kind of Stirling vascular mixing cold finger using post spring phase modulation |
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| Publication Number | Publication Date |
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| CN207196990U true CN207196990U (en) | 2018-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721054784.1U Withdrawn - After Issue CN207196990U (en) | 2017-08-22 | 2017-08-22 | A kind of Stirling vascular mixing cold finger using post spring phase modulation |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107421153A (en) * | 2017-08-22 | 2017-12-01 | 中国电子科技集团公司第十六研究所 | A kind of Stirling vascular mixing cold finger using post spring phase modulation |
| CN109974338A (en) * | 2019-03-06 | 2019-07-05 | 中国科学院理化技术研究所 | A phase modulator and thermoacoustic system |
-
2017
- 2017-08-22 CN CN201721054784.1U patent/CN207196990U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107421153A (en) * | 2017-08-22 | 2017-12-01 | 中国电子科技集团公司第十六研究所 | A kind of Stirling vascular mixing cold finger using post spring phase modulation |
| CN107421153B (en) * | 2017-08-22 | 2022-07-12 | 中国电子科技集团公司第十六研究所 | Stirling-pulse tube mixed cold finger adopting column spring phase modulation |
| CN109974338A (en) * | 2019-03-06 | 2019-07-05 | 中国科学院理化技术研究所 | A phase modulator and thermoacoustic system |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180406 Effective date of abandoning: 20220712 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20180406 Effective date of abandoning: 20220712 |