CN108061398A - A kind of expanding machine and its segmented regenerator - Google Patents
A kind of expanding machine and its segmented regenerator Download PDFInfo
- Publication number
- CN108061398A CN108061398A CN201711475405.0A CN201711475405A CN108061398A CN 108061398 A CN108061398 A CN 108061398A CN 201711475405 A CN201711475405 A CN 201711475405A CN 108061398 A CN108061398 A CN 108061398A
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- China
- Prior art keywords
- heat exchanging
- regenerator
- exchanging segment
- segmented
- millimeter
- Prior art date
- 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.)
- Pending
Links
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 15
- 239000010935 stainless steel Substances 0.000 claims abstract description 15
- 239000004744 fabric Substances 0.000 claims abstract description 14
- 239000002657 fibrous material Substances 0.000 claims abstract description 13
- 229920006267 polyester film Polymers 0.000 claims abstract description 13
- 238000004804 winding Methods 0.000 claims abstract description 9
- 239000000835 fiber Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 4
- 229920001778 nylon Polymers 0.000 claims description 3
- 238000009941 weaving Methods 0.000 claims description 3
- 240000007594 Oryza sativa Species 0.000 claims 1
- 235000007164 Oryza sativa Nutrition 0.000 claims 1
- VIKNJXKGJWUCNN-XGXHKTLJSA-N norethisterone Chemical compound O=C1CC[C@@H]2[C@H]3CC[C@](C)([C@](CC4)(O)C#C)[C@@H]4[C@@H]3CCC2=C1 VIKNJXKGJWUCNN-XGXHKTLJSA-N 0.000 claims 1
- 235000009566 rice Nutrition 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 15
- 230000001172 regenerating effect Effects 0.000 abstract description 6
- 238000011017 operating method Methods 0.000 abstract description 5
- 238000013016 damping Methods 0.000 abstract description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000005057 refrigeration Methods 0.000 description 3
- 239000000945 filler Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 229920000914 Metallic fiber Polymers 0.000 description 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009954 braiding Methods 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
Classifications
-
- 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
- F25B9/06—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point using expanders
-
- 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
-
- 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
Abstract
The present invention provides a kind of expanding machine and its segmented regenerator, segmented regenerator includes hot junction heat exchanging segment, stage casing heat exchanging segment and cold end heat exchanging segment, stage casing heat exchanging segment is between hot junction heat exchanging segment and cold end heat exchanging segment, hot junction heat exchanging segment is made of circular fibrous material, stage casing heat exchanging segment is made of polyester film, annular shape is formed by multi-lay winding, cold end heat exchanging segment is made of laminar circular ring shape stainless steel cloth.Segmented regenerator is by taking different regenerative materials that can promote the effectiveness of regenerator of the sterlin refrigerator under different warm area work to the full extent, it can realize 50 DEG C to 200 DEG C of cryogenic temperature, balance is realized between flow damping loss and regenerator loss, and reduce axial heat conduction loss, the effectiveness of regenerator of regenerator is enhanced to a certain extent.And the structure of segmented regenerator is simple, and making material is common, and operating procedure is simple.
Description
Technical field
The present invention relates to technical field of refrigeration equipment more particularly to a kind of expansion refrigerators and its segmented regenerator.
Background technology
Expanding machine belongs to the chief component of sterlin refrigerator, and core component of the regenerator as expanding machine is made
Energy is stored with for the working medium of Oscillating flow in system.Regenerator must have the ability of high heat transfer speed, this needs high heat transfer face
Product and the low flow resistance to working fluid.Therefore, influence the parameter of regenerator effectiveness of regenerator, such as regenerator material, structure and return
Hot device size etc. must carry out focal selection and design.
Various types of regenerators can obtain on the market, and such regenerator typically comprises metal mesh, cylinder
The line gauge or the netted structure of 3D random fibers of shape winding, in patent application JP1240760, JP2091463 and WO01/65099
It is described.Regenerator further includes short metallic fiber, as described in patent application EP1341630.
Since regenerator both ends are there is the apparent temperature difference, regenerator is needed in axial direction, i.e., the direction that fluid flows
It is upper that there is very low thermal conductivity.Meanwhile in order to which working medium can be allowed promptly to carry out heat exchange in regenerator, so also requiring back
Hot device has very high thermal conductivity on the direction flowed perpendicular to fluid.Finally, regenerator must have the flowing of low loss
Path so that the pressure drop of very little will be generated when working medium is moved through.
Chinese patent CN102341586B discloses a kind of regenerator for thermal cycle engine, the net including fiber
On the axis of most of at least partly about regenerators of shape structure, wherein fiber, fiber be coiled and be sintered and thus
Obtain a part for the web of regenerator.Net structure is made only with a kind of fibrous material in the regenerator, and regenerator returns
The leeway of hot capacity adjusting is smaller.
Chinese patent CN1053273C discloses a kind of regenerator, it have there are one discrete material composition, be placed in two
Annular accumulation of heat restraining between a axial cylindrical shape fence, a hot collecting chamber surrounded by hot fence inside and one are trapped among
It is cold fence outside on one side, another side is the cold collecting chamber between regenerator shell wall.The regenerative material of the regenerator is pine
Scattered material is, it is necessary to could be inputted material in empty room by certain operation, therefore, it is notable the shortcomings that be that operating procedure is answered
It is miscellaneous.
Chinese patent CN201010133118, discloses a kind of regenerator of regenerating type low-temperature refrigerator, which fills out
Material is filled in inside expansion piston, and the process of filling and the axial filler alternating filling there are radial direction filler, therefore, is filled
Journey is complex, not easy to operate.
The content of the invention
The first object of the present invention is to provide a kind of segmented regenerator for expanding machine, can realize -50 DEG C to -
200 DEG C of cryogenic temperature reduces axial heat conduction loss, enhances effectiveness of regenerator.
The second object of the present invention is to provide a kind of expansion refrigerator using above-mentioned segmented regenerator, can realize-
50 DEG C to -200 DEG C of cryogenic temperature reduces axial heat conduction loss, enhances effectiveness of regenerator.
In order to realize the first object of the present invention, the present invention provide a kind of segmented regenerator include hot junction heat exchanging segment, in
Section heat exchanging segment and cold end heat exchanging segment, stage casing heat exchanging segment between hot junction heat exchanging segment and cold end heat exchanging segment, hot junction heat exchanging segment by
Circular fibrous material is made, and stage casing heat exchanging segment is made of polyester film, forms annular shape by multi-lay winding, cold end is changed
Hot arc is made of laminar circular ring shape stainless steel cloth.
Further scheme is that fibrous material is PET fiber or nylon fiber.
Further scheme is that the filament diameter of fibrous material is 0.02 millimeter to 0.03 millimeter.
Further scheme is that, by forming gap between the adjacent two layers polyester film of multi-lay winding, gap exists
The width of radial direction is 0.02 millimeter to 0.05 millimeter.
Further scheme is to be offered on polyester film staggeredly and equally distributed perforation, perforation it is a diameter of
0.1 millimeter to 0.2 millimeter.
Further scheme is that the perforate density of perforation is every square centimeter for 4 to 6.
Further scheme is that the mesh number of stainless steel cloth is 300 mesh to 600 mesh, and the twine of stainless steel cloth is straight
Footpath is 0.02 millimeter to 0.03 millimeter.
Further scheme is that the weaving method of stainless steel cloth is twill weave or plain weave.
By said program as it can be seen that segmented regenerator is by taking different regenerative materials that can to the full extent be promoted not
The effectiveness of regenerator of sterlin refrigerator under working with warm area can realize -50 DEG C to -200 DEG C of cryogenic temperature, be hindered in flowing
Buddhist nun loses realizes balance between regenerator loss, and reduces axial heat conduction loss, enhances returning for regenerator to a certain extent
The thermal efficiency.In addition, the structure of the segmented regenerator is simple, making material is common, and operating procedure is simple.
In order to realize the second object of the present invention, the present invention provides a kind of expanding machine, swollen including shell, in shell
Swollen chamber cylinder and the expansion piston in expansion chamber cylinder, wherein, sterlin refrigerator further includes segmented regenerator, point
Segmentation regenerator is sleeved on the outer wall of expansion chamber cylinder and positioned at the inner wall of shell, segmented regenerator include hot junction heat exchanging segment,
Stage casing heat exchanging segment and cold end heat exchanging segment, stage casing heat exchanging segment is between hot junction heat exchanging segment and cold end heat exchanging segment, hot junction heat exchanging segment
It is made of circular fibrous material, stage casing heat exchanging segment is made of polyester film, and annular shape, cold end are formed by multi-lay winding
Heat exchanging segment is made of laminar circular ring shape stainless steel cloth.
By said program as it can be seen that regenerator is in the structure of segmented, gas takes the lead in passing through when by segmented regenerator
Hot junction heat exchanging segment after hot end heat exchanger, while partial heat is stored in the heat exchanging segment of hot junction, gas temperature declines；
Then, gas by stage casing heat exchanging segment at, by the gap between film and the perforation of film, and partial heat is stored in
In film, gas temperature further reduces；Finally, gas enters in cold end heat exchanging segment, and the temperature of gas is down to target refrigeration temperature
Degree.Segmented regenerator is by taking different regenerative materials that can promote the Stirling under different warm area work to the full extent
The effectiveness of regenerator of refrigeration machine can realize -50 DEG C to -200 DEG C of cryogenic temperature, it is lost in flow damping loss and regenerator
Between realize balance, and reduce axial heat conduction loss, enhance the effectiveness of regenerator of regenerator to a certain extent.In addition, the segmented
The structure of regenerator is simple, and making material is common, and operating procedure is simple.
Description of the drawings
Fig. 1 is the sectional view of expanding machine embodiment of the present invention.
Fig. 2 is the structure chart of the hot junction heat exchanging segment of segmented regenerator embodiment of the present invention.
Fig. 3 is the structure chart of the stage casing heat exchanging segment of segmented regenerator embodiment of the present invention.
Fig. 4 is the structure chart of the cold end heat exchanging segment of segmented regenerator embodiment of the present invention..
The invention will be further described with reference to the accompanying drawings and embodiments.
Specific embodiment
Referring to Fig. 1 to Fig. 4, expanding machine includes shell 8, the expansion chamber cylinder 4 in shell 8 and positioned at expansion chamber gas
Expansion piston 5 in cylinder 4.Expanding machine further includes segmented regenerator, and segmented regenerator is sleeved on the outer wall of expansion chamber cylinder 4
And positioned at the inner wall of shell 8, sterlin refrigerator is provided with hot end heat exchanger 6 and cool end heat exchanger 7.Segmented regenerator includes
Hot junction heat exchanging segment 1, stage casing heat exchanging segment 2 and cold end heat exchanging segment 3, stage casing heat exchanging segment 2 are located at hot junction heat exchanging segment 1 and cold end heat exchanging segment
Between 3, hot junction heat exchanging segment 1 is made of circular fibrous material, and the length of fibrous layer can be according to the regenerator length of expanding machine
Demand is adjusted.Stage casing heat exchanging segment 2 is made of polyester film, and annular shape is formed by multi-lay winding, can be according to regenerator
Diameter demand is wound to required diameter.Cold end heat exchanging segment 3 is made of laminar circular ring shape stainless steel cloth, can be according to swollen
The regenerator length requirement of swollen machine carries out the piece number adjustment.
The present embodiment fibrous material is PET fiber or nylon fiber, the filament diameter of fibrous material for 0.02 millimeter extremely
0.03 millimeter.Gap 210 is formed between the adjacent two layers polyester film that the present embodiment passes through multi-lay winding, gap 210 is in footpath
To width for 0.02 millimeter to 0.05 millimeter, and offer staggeredly and equally distributed perforation 220, have on polyester film
It exchanges heat, perforates a diameter of 0.1 millimeter to 0.2 millimeter of 220 beneficial to the radial direction of the heat exchange between working medium and material and working medium,
The perforate density of perforation 220 is every square centimeter for 4 to 6.The mesh number of the present embodiment stainless steel cloth for 300 mesh to 600 mesh, and
The mesh wire diameter of stainless steel cloth is 0.02 millimeter to 0.03 millimeter, and the weaving method of stainless steel cloth is twill weave or plain weave
Braiding.
The length of polyester film layer needed for stage casing heat exchanging segment 2 is determined first, takes the length of segmented regenerator overall length
80%, then in remaining segmented regenerator portion, hot junction heat exchanging segment 1 fills length as segmented regenerator overall length
10%, the circular fiber material filling of use, it is also the 10% of segmented regenerator overall length that cold end heat exchanging segment 3, which fills length, is adopted
It is filled with ring stainless steel silk screen.
The hot junction heat exchanging segment 1 of shape in a ring is inserted in the outside of expansion chamber cylinder wall 4, then, polyester film is formed
Stage casing heat exchanging segment 2 be wrapped in the outside of expansion chamber cylinder wall 4, finally, be inserted in cold end heat exchanging segment 3 in a ring.
Regenerator is in the structure of segmented, and gas takes the lead in when by segmented regenerator by being located at hot end heat exchanger 6
Hot junction heat exchanging segment 1 afterwards, while partial heat is stored in hot junction heat exchanging segment 1, gas temperature declines；Then, gas passes through
It crosses at stage casing heat exchanging segment 2, by the gap 210 between film and the perforation 220 of film, and partial heat is stored in film
In, gas temperature further reduces；Finally, gas enters in cold end heat exchanging segment 3, and the temperature of gas is down to target cryogenic temperature.
Segmented regenerator is by taking different regenerative materials that can be promoted to the full extent under different warm area work
The effectiveness of regenerator of sterlin refrigerator can realize -50 DEG C to -200 DEG C of cryogenic temperature, in flow damping loss and regenerator
Balance is realized between loss, and reduces axial heat conduction loss, enhances the effectiveness of regenerator of regenerator to a certain extent.In addition, this
The structure of invention segmented regenerator is simple, and making material is common, and operating procedure is simple.
The preferred embodiments of embodiment described above, the simply present invention are not therefore the Fan Yiben to limit the scope of the present invention
The equivalent change or modification that construction, feature and principle described in patent application the scope of the claims are done should all be included in of the invention special
In sharp application range.
Claims (9)
1. segmented regenerator, it is characterised in that：
The segmented regenerator includes hot junction heat exchanging segment, stage casing heat exchanging segment and cold end heat exchanging segment, the stage casing heat exchange section
Between the hot junction heat exchanging segment and the cold end heat exchanging segment；
The hot junction heat exchanging segment is made of circular fibrous material；
The stage casing heat exchanging segment is made of polyester film, and annular shape is formed by multi-lay winding；
The cold end heat exchanging segment is made of laminar circular ring shape stainless steel cloth.
2. segmented regenerator according to claim 1, it is characterised in that：
The fibrous material is PET fiber or nylon fiber.
3. segmented regenerator according to claim 2, it is characterised in that：
The filament diameter of the fibrous material is 0.02 millimeter to 0.03 millimeter.
4. segmented regenerator according to claim 1, it is characterised in that：
By forming gap between polyester film described in the adjacent two layers of multi-lay winding, the gap is in the width of radial direction
0.02 millimeter to 0.05 millimeter.
5. segmented regenerator according to any one of claims 1 to 4, it is characterised in that：
It is offered on the polyester film staggeredly and equally distributed perforation, a diameter of 0.1 millimeter of the perforation to 0.2 milli
Rice.
6. segmented regenerator according to claim 5, it is characterised in that：
The perforate density of the perforation is every square centimeter for 4 to 6.
7. segmented regenerator according to claim 1, it is characterised in that：
The mesh number of the stainless steel cloth be 300 mesh to 600 mesh, and the mesh wire diameter of the stainless steel cloth for 0.02 millimeter extremely
0.03 millimeter.
8. segmented regenerator according to claim 7, it is characterised in that：
The weaving method of the stainless steel cloth is twill weave or plain weave.
9. a kind of expanding machine, including shell, the expansion chamber cylinder being located in the shell and in the expansion chamber cylinder
Expansion piston, it is characterised in that：
The expanding machine further includes segmented regenerator, and the segmented regenerator is sleeved on the outer wall of the expansion chamber cylinder simultaneously
Positioned at the inner wall of the shell, the segmented regenerator is the segmented regenerator of any one of claim 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711475405.0A CN108061398A (en) | 2017-12-29 | 2017-12-29 | A kind of expanding machine and its segmented regenerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711475405.0A CN108061398A (en) | 2017-12-29 | 2017-12-29 | A kind of expanding machine and its segmented regenerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108061398A true CN108061398A (en) | 2018-05-22 |
Family
ID=62140731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711475405.0A Pending CN108061398A (en) | 2017-12-29 | 2017-12-29 | A kind of expanding machine and its segmented regenerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108061398A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109737650A (en) * | 2018-12-24 | 2019-05-10 | 上海齐耀动力技术有限公司 | A kind of preparation facilities and method of wound form regenerator used for cryogenic refrigerator |
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|---|---|---|---|---|
| US4619112A (en) * | 1985-10-29 | 1986-10-28 | Colgate Thermodynamics Co. | Stirling cycle machine |
| US20030000226A1 (en) * | 1999-12-21 | 2003-01-02 | Shinsuke Amano | Stirling refrigerating machine |
| CN1498333A (en) * | 2001-03-21 | 2004-05-19 | 可口可乐公司 | Merchandiser with slide-out stirling regeneration module |
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| US20120017607A1 (en) * | 2010-07-22 | 2012-01-26 | Flir Systems, Inc. | Expander for Stirling Engines and Cryogenic Coolers |
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-
2017
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109737650A (en) * | 2018-12-24 | 2019-05-10 | 上海齐耀动力技术有限公司 | A kind of preparation facilities and method of wound form regenerator used for cryogenic refrigerator |
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