CN113154716B - A cooler for Stirling device - Google Patents
A cooler for Stirling device Download PDFInfo
- Publication number
- CN113154716B CN113154716B CN202110521911.9A CN202110521911A CN113154716B CN 113154716 B CN113154716 B CN 113154716B CN 202110521911 A CN202110521911 A CN 202110521911A CN 113154716 B CN113154716 B CN 113154716B
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- Prior art keywords
- annular
- cooler
- water inlet
- flow channel
- water outlet
- 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.)
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 60
- 239000007788 liquid Substances 0.000 claims abstract description 24
- 230000000149 penetrating effect Effects 0.000 claims abstract description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 238000005266 casting Methods 0.000 abstract description 4
- 239000002826 coolant Substances 0.000 description 11
- 238000009826 distribution Methods 0.000 description 10
- 238000007906 compression Methods 0.000 description 5
- 230000006835 compression Effects 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000005457 optimization Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 238000009423 ventilation Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 229910000679 solder Inorganic materials 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
- F25B9/14—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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
本发明公开了一种用于斯特林装置的冷却器，冷却器设置在压力壳和缸套之间，包括一体成型的环形底座、分流板及环形顶盖，所述分流板均匀设于环形底座和环形顶盖之间，相邻分流板之间形成液体流道，分流板内设有贯穿于环形底座和环形顶盖端面的通气孔，分流板之间还形成有与压力壳的进水端和出水端连通的进水口和出水口，位于进水口和出水口两侧的分流板依次错位设置，与缸套和压力壳之间形成迂回形流道，水流从进水口流入，经过迂回形流道在出水口汇集流出。该冷却器构型适于铸造量产，气路和水路之间的气密易实现，其经济性及可靠性显著优于本领域现有的壳管冷却器型式。
The present invention discloses a cooler for a Stirling device, which is arranged between a pressure shell and a cylinder liner, and includes an integrally formed annular base, a diverter plate and an annular top cover, wherein the diverter plate is evenly arranged between the annular base and the annular top cover, and a liquid flow channel is formed between adjacent diverter plates, and a vent hole penetrating the end surface of the annular base and the annular top cover is arranged in the diverter plate, and a water inlet and a water outlet connected to the water inlet end and the water outlet end of the pressure shell are also formed between the diverter plates, and the diverter plates located on both sides of the water inlet and the water outlet are sequentially staggered to form a circuitous flow channel between the cylinder liner and the pressure shell, and water flows in from the water inlet, and flows out through the circuitous flow channel at the water outlet. The configuration of the cooler is suitable for mass production by casting, and the airtightness between the gas path and the water path is easy to achieve, and its economy and reliability are significantly better than the existing shell and tube cooler types in the field.
Description
Technical Field
The invention relates to the technical field of Stirling devices, in particular to a cooler for a Stirling device.
Background
The Stirling device uses Stirling cycle as a working principle, is a closed cycle machine working based on heat source temperature difference, and is environment-friendly due to the fact that working medium is usually helium. At least two movers are needed inside the Stirling machine to realize the volume change of the expansion cavity and the compression cavity, thereby realizing the heat-power conversion effect. The two movers reciprocate to drive the working medium to reciprocate between the expansion cavity and the compression cavity through mutually adjacent heat exchangers, regenerators and cooler flow passages, and the pressure of the working medium can undergo periodic variation which is asynchronous with the movers in the process, thereby generating heat-power conversion.
The cooler is arranged between the compression cavity and the normal-temperature end face of the heat regenerator, and is generally in the form of a partition rib plate type or a shell tube type, and compression heat generated in the compression process of working media is carried and released through external airflow or water flow. The partition rib type is generally applied to a small Stirling device, as shown in FIG. 10, the water flow channel and the gas channel are respectively positioned at two sides, the air tightness is easy to ensure, but the rib efficiency limits the heat exchange efficiency, and the cylinder sleeve cannot be cooled efficiently.
The shell-and-tube cooler is generally applied to large and medium Stirling devices, a working medium passes through a tube pass, a cooling medium passes through a shell pass, reliable airtight performance must be ensured between the tube pass and the shell pass, and the conventional process is to correspondingly punch array holes on upper and lower parallel end plates, wherein the peripheries of the upper and lower end plates are sealed by sleeves, so as to form a shell pass space. The thin-wall tubes are assembled in mating holes in the end plates and then welded or integrally brazed one by one. The disadvantage of this type cooler is that the manufacturing process is complex, and the whole machine will be invalid once there is the solder joint inefficacy in the course of the work. Specifically, pages 6 to 8 of the NASA Report entitled "SPDE/SPRE FINAL Summary Report" disclose a stirling shell and tube cooler parameter and photograph with 1548 ventilation tubes therein. The cooler adopts a welding process, and the number of tube bundles is huge, so that the cooler has high cost.
Disclosure of Invention
Aiming at the technical problems, the invention provides the cooler for the Stirling device, which completely overcomes the defects of the prior art, is integrally formed by adopting a casting process, greatly reduces the production and manufacturing cost, ensures that a cooling medium uniformly flows in a cooler body by adopting symmetrical roundabout flow passages, ensures that both working medium air flow and a cylinder sleeve can be effectively cooled, improves the running stability of the whole machine, ensures the air tightness between the air flow and the cooling medium, and has reliability far higher than that of the traditional shell-tube cooler relying on welding.
A cooler for Stirling device, the cooler setting is between pressure shell and cylinder liner, including integrated into one piece's annular base, flow distribution plate and annular top cap, the flow distribution plate evenly locates between annular base and the annular top cap, forms the liquid runner between the adjacent flow distribution plate, is equipped with in the flow distribution plate and runs through in the air vent of annular base and annular top cap terminal surface, still is formed with water inlet and the delivery port with the inlet end and the play water end intercommunication of pressure shell between the flow distribution plate, and the flow distribution plate that is located water inlet and delivery port both sides dislocation set in proper order forms circuitous runner between cylinder liner and the pressure shell, and rivers flow in from the water inlet, collect the outflow through circuitous runner at the delivery port.
As the optimization of the technical scheme, the inner sides of the flow distribution plates are positioned on the same annular vertical face, the outer sides of the flow distribution plates positioned at the two sides of the water inlet and the water outlet are abutted against the pressure shell at intervals, the outer vertical face of the cylinder sleeve is provided with the stop block, the inner sides of the other flow distribution plates positioned at the two sides of the water inlet and the water outlet are abutted against the stop block, and a roundabout flow passage is formed among the flow distribution plates, the cylinder sleeve, the pressure shell and the stop block.
As the optimization of the technical scheme, the flow dividing plates positioned at the two sides of the water inlet and the water outlet are respectively abutted against the cylinder sleeve and the pressure shell in sequence, and a circuitous flow passage is formed between the flow dividing plates and the cylinder sleeve and the pressure shell.
Preferably, the water inlet and the water outlet are arranged in groups.
As a preferable mode of the above technical solution, the liquid flow channels are groove-shaped, and the liquid flow channels are uniformly distributed along the circumferential directions of the annular base and the annular top cover.
As a preferable mode of the technical scheme, the cross section of the liquid flow channel is in a hole shape, and the liquid flow channel is uniformly distributed along the circumferential direction and the axial direction of the annular base and the annular top cover.
Preferably, the ventilation holes are uniformly distributed along the circumferential direction and the radial direction of the annular base and the annular top cover.
As the optimization of the technical scheme, the bottom of the annular base is provided with the annular boss along the outer circumference, and the annular boss and the annular base are integrally formed.
Preferably, the cooler is cast from copper or aluminum.
The invention has the beneficial effects that:
The cooler is integrally formed by adopting a casting process, so that the production and manufacturing cost is greatly reduced, a symmetrical roundabout flow passage is adopted, a cooling medium uniformly flows in the cooler body, the working medium air flow and the cylinder sleeve can be effectively cooled, the running stability of the whole cooler is improved, the air tightness between the air flow and the cooling medium is easy to ensure, and the reliability is far higher than that of a traditional shell-tube cooler relying on welding.
Drawings
Fig. 1 is a schematic diagram of a groove-shaped liquid flow channel in the first embodiment.
Fig. 2 is a longitudinal sectional view showing a liquid flow path in a groove shape in the first embodiment.
Fig. 3 is a cross-sectional view showing a liquid flow path in a groove shape in the first embodiment.
Fig. 4 is a schematic longitudinal sectional view showing the assembly of a cooler with a groove-shaped liquid flow channel, a pressure shell and a cylinder sleeve in the first embodiment.
Fig. 5 is a schematic cross-sectional view showing the assembly of a cooler with a groove-shaped liquid flow channel, a pressure shell and a cylinder sleeve in the first embodiment.
Fig. 6 is a schematic view of a structure in which the cross section of the liquid flow channel is hole-shaped in the first embodiment.
Fig. 7 is a schematic structural view of a cylinder liner with a stopper on an outer vertical surface in the first embodiment.
Fig. 8 is a cross-sectional view showing a liquid flow path in a groove shape in the second embodiment.
FIG. 9 is a schematic cross-sectional view showing the assembly of a cooler with a trough-shaped liquid flow channel, a pressure shell and a cylinder liner in the second embodiment
Fig. 10 is a schematic diagram of a prior art structure.
The reference numerals are as follows, 1-pressure shell, 2-cylinder sleeve, 3-annular base, 4-splitter plate, 5-annular top cover, 6-liquid flow channel, 7-vent hole, 8-water inlet, 9-water outlet, 10-stop block, 11-annular boss.
Detailed Description
The technical scheme of the invention is clearly and completely described below with reference to the accompanying drawings. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to fall within the scope of the invention.
Example 1
The cooler for Stirling device is arranged between a pressure shell 1 and a cylinder sleeve 2 and comprises an annular base 3, a flow dividing plate 4 and an annular top cover 5 which are integrally formed, wherein the flow dividing plate 4 is uniformly arranged between the annular base 3 and the annular top cover 5, a liquid flow channel 6 is formed between the adjacent flow dividing plates 4, vent holes 7 penetrating through the end faces of the annular base 3 and the annular top cover 5 are formed in the flow dividing plates 4, a water inlet 8 and a water outlet 9 which are communicated with the water inlet end and the water outlet end of the pressure shell 1 are further formed between the flow dividing plates 4, the flow dividing plates 4 positioned on two sides of the water inlet 8 and the water outlet 9 are sequentially arranged in a staggered mode, a circuitous flow channel is formed between the flow dividing plates and the cylinder sleeve 2 and the pressure shell 1, and water flows in from the water inlet 8 and flows out through the circuitous flow channel in the water outlet 9.
In this embodiment, the inner sides of the splitter plates 4 are located on the same annular elevation, the outer sides of the splitter plates 4 located at two sides of the water inlet 8 and the water outlet 9 are abutted against the pressure shell 1 at intervals, a stop block 10 is arranged on the outer elevation of the cylinder sleeve 8, the inner sides of the other splitter plates 4 located at two sides of the water inlet 8 and the water outlet 9 are abutted against the stop block 10, and a circuitous flow channel is formed between the splitter plates 4 and the cylinder sleeve 2, the pressure shell 1 and the stop block 10.
In this embodiment, the water inlet 8 and the water outlet 9 are arranged in groups.
In this embodiment, the liquid flow channels 6 are groove-shaped, and the liquid flow channels 6 are uniformly distributed along the circumferential direction of the annular base 3 and the annular top cover 5.
In this embodiment, the cross section of the liquid flow channel 6 is hole-shaped, and the liquid flow channels 6 are uniformly distributed along the circumferential direction and the axial direction of the annular base 3 and the annular top cover 5.
In this embodiment, the ventilation holes 7 are uniformly distributed along the circumferential direction and the radial direction of the annular base 3 and the annular top cover 5.
In this embodiment, an annular boss 11 is disposed at the bottom of the annular base 3 along the outer circumference, and the annular boss 11 and the annular base 3 are integrally formed.
In this embodiment, the cooler is cast from copper or aluminum.
The invention has the core innovation points that the cooling medium flowing through the circuitous flow passage in the cooler can efficiently cool the working medium air flow and the cylinder sleeve by changing the structure of the cooler body, the structure of the cooling medium can be molded at one time through a casting process, when the cooler is manufactured by adopting the same material, the manufacturing cost of the cooler is about 1/100 of the manufacturing cost of the prior shell-tube cooler, and the cooling medium is especially suitable for large-medium type application, meanwhile, the air tightness is easy to be ensured between the working medium air flow and the cooling medium, the annular base 3 and the annular top cover 5 are provided with annular sealing grooves, O-shaped sealing rings are filled in the annular sealing grooves, the air tightness between the cooler and the pressure shell 1 and the cylinder sleeve 2 can be realized, the cooling medium is difficult to lose efficacy, and the reliability of the cooling medium is obviously superior to the shell-tube cooler which relies on a huge amount of welding points.
Example two
As shown in fig. 7 and 8, the difference between the present embodiment and the first embodiment is that the flow dividing plates 4 located at both sides of the water inlet 8 and the water outlet 9 are sequentially abutted against the cylinder liner 2 and the pressure shell 1, respectively, and form a circuitous flow path between the cylinder liner 2 and the pressure shell 1. Compared with the scheme of forming the circuitous flow passage in the first embodiment, the processing difficulty and the manufacturing cost of the scheme of forming the circuitous flow passage in the first embodiment are slightly higher.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110521911.9A CN113154716B (en) | 2021-05-13 | 2021-05-13 | A cooler for Stirling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110521911.9A CN113154716B (en) | 2021-05-13 | 2021-05-13 | A cooler for Stirling device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113154716A CN113154716A (en) | 2021-07-23 |
| CN113154716B true CN113154716B (en) | 2025-03-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110521911.9A Active CN113154716B (en) | 2021-05-13 | 2021-05-13 | A cooler for Stirling device |
Country Status (1)
| Country | Link |
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| CN (1) | CN113154716B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN215809428U (en) * | 2021-05-13 | 2022-02-11 | 华中科技大学 | A cooler for a Stirling device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10006916B4 (en) * | 2000-02-16 | 2006-10-12 | Eckhart Weber | Stirling machine in α-construction (Rider) |
| CN104481726A (en) * | 2014-11-06 | 2015-04-01 | 南京航空航天大学 | Three-piston type free-piston stirling engine |
| CN107449299A (en) * | 2017-09-22 | 2017-12-08 | Omexell(济南)传热技术有限公司 | A kind of vortex flow passage type sewage heat exchanger |
| RU182024U1 (en) * | 2017-12-26 | 2018-07-31 | Федор Андреевич Шустров | Stirling engine cooler |
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2021
- 2021-05-13 CN CN202110521911.9A patent/CN113154716B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN215809428U (en) * | 2021-05-13 | 2022-02-11 | 华中科技大学 | A cooler for a Stirling device |
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| Publication number | Publication date |
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| CN113154716A (en) | 2021-07-23 |
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