CN203249422U - Internal flow guide structure at hot end of U-shaped and linear pulse tube refrigerating machine - Google Patents
Internal flow guide structure at hot end of U-shaped and linear pulse tube refrigerating machine Download PDFInfo
- Publication number
- CN203249422U CN203249422U CN2013201425809U CN201320142580U CN203249422U CN 203249422 U CN203249422 U CN 203249422U CN 2013201425809 U CN2013201425809 U CN 2013201425809U CN 201320142580 U CN201320142580 U CN 201320142580U CN 203249422 U CN203249422 U CN 203249422U
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- hot end
- hot
- end heat
- hot junction
- 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.)
- Withdrawn - After Issue
Links
Images
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
- F25B2309/00—Gas cycle refrigeration machines
- F25B2309/14—Compression machines, plants or systems characterised by the cycle used
- F25B2309/1406—Pulse-tube cycles with pulse tube in co-axial or concentric geometrical arrangements
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model discloses an internal flow guide structure at the hot end of a U-shaped and linear pulse tube refrigerating machine. The internal flow guide structure is composed of a hot end heat exchanger, a hot end plug and a flow guide core column. A conical fin structure which is annularly and evenly distributed around the center is cut through a linear cutting technique in the hot end heat exchanger, a T-shaped through hole is previously formed in the center before linear cutting to be used for remove weak sharp corners at the tail end of a fin, the guide flow core column of the same fin structure is inserted into the T-shaped through hole, a hole is formed in the center of the flow guide core column, the hot end plug is inserted into the hot end heat exchanger, a bidirectional gradual transition curve in the hot end plug is connected with a slot body flow guide channel and a small hole runner, the curve is in tangency with the surfaces of fluid flow channels at the two ends, and the hot end plug is tightly connected to the hot end heat exchanger through a sealing ring and a screw. The internal flow guide structure designs a novel flow guide structure at the change position of the section of a hot end air rubber, enables the loss of high-frequency oscillating air flow to be minimum at the position and has significance in improving the refrigerating efficiency of the U-shaped and linear pulse tube refrigerating machine.
Description
Technical field
This patent relates to a kind of vascular refrigerator, particularly a kind of hot junction flow guide structure at inner part of U-shaped and straight pulse pipe refrigeration machine.
Background technology
Pulse tube refrigerating machine is born in nineteen sixties, begins to have carried out large-scale practical application from the nineties.Compare with sterlin refrigerator with the G-M refrigeration machine, vascular refrigerator has been eliminated the displacer of low-temperature region, the substitute is the hollow pipe that is called vascular.Its phase place is controlled by static components such as the aperture that is installed in the vascular hot junction, inertia tube and air reservoirs.Owing to not having moving component at low-temperature region, thereby having eliminated the problems such as skimming wear, mechanical oscillation, clearance seal.Therefore, pulse tube refrigerating machine has the advantages such as vibration is little, the life-span is long, and on the refrigerating efficiency of typical warm area, reached the highest level of philip refrigerator, the characteristic of himself has determined that vascular refrigerator all has a wide range of applications at aspects such as Aero-Space, cryotronics, Superconductor Physics and cryosurgeries, pulse tube refrigerating machine also has a lot of the improvement and development potentiality aspect other at phase modulating mechanism, drive source etc., and this will further improve the refrigeration usefulness of pulse tube refrigerating machine.
The arrangement different from regenerator according to the pulse tube refrigerating machine vascular generally is divided into three kinds of type of arrangement, namely as shown in Figure 1: U-shaped (a), coaxial type (b), linear pattern (c).U-shaped is to allow vascular and regenerator be arranged in juxtaposition, link to each other by the pipeline in the cold junction, and the vascular of coaxial type and regenerator arranged concentric, vascular inserts in the regenerator, and linear pattern vascular and regenerator are arranged point-blank, in the middle of cold junction is positioned at.Three kinds of arrangement forms, linear pattern internal flow resistance is little, and during practice, the complete machine body is large and be difficult for being coupled with the device that is cooled; Being arranged in juxtaposition of U-shaped vascular and regenerator, the overall structure size is dwindled, but turning back of 180 degree increases flow resistance; The coaxial type structure is more compact, and cold junction is outstanding separately, but the resistance that flows is larger.Three kinds of versions of vascular refrigerator respectively have quality, can select suitable version for different environment and demand.
This patent is conceived to U-shaped and straight pulse pipe refrigeration machine hot junction flow guide structure at inner part.U-shaped and straight line vascular refrigerator is that with respect to the advantage of coaxial pulse-tube refrigerator the refrigerating device inner flow resistance is little, but further reduces to also have a lot of rooms for improvement aspect the internal gas flow resistance of hot junction how.Hot junction plug and hot end heat exchanger are U-shaped and the critical component of inside, straight line vascular refrigerator hot junction, are combined into the key position that collection heat exchange, water conservancy diversion, integral body are fixed as one with water conservancy diversion stem stem, regenerator.The major function that realize in hot junction U-shaped and straight pulse pipe refrigeration machine comprises:
1) the narrow annular channel body flow-guiding structure that forms of hot end heat exchanger inner wire cutting allows the gas that enters flow along the slit of annular spread, and gas is evenly distributed when entering regenerator, realizes the gas blanket fluidisation.
2) at the slit of hot end heat exchanger inside, the slit of 48～60 annular array has increased the contact area between heat exchanger and the gas greatly, realize gas and external environment condition in a large number, fast heat transmission.
3) the water conservancy diversion stem stem with 10～15 narrow annular slots of hot junction slit body centre insertion, eliminated the slit generation fin weak wedge angle of hot junction slit body because of the cutting One's name is legion, himself cuts the heat exchange area that the slit that forms has further increased gas, accelerated heat is transmitted, and makes the gas of center, hot junction also can cross heat exchanger by the same the same steady flow of gas of slit body on every side.
4) as the transition structure of gas connection between hot junction slit and the hot junction plug through hole, realized the fast transition of flow morphology between hot junction slit and the hot junction plug central through hole at hot junction plug inner section transitional region gas.
5) plug two ends in hot junction connect respectively hot end heat exchanger and phase modulating mechanism, playing a part structure fixes and the gas sealing, the part heat that while gas produces in quick alternate oscillation can pass to hot end heat exchanger by the hot junction plug, plays a part heat transmission.
On the flow-guiding structure of conventional U-shaped and inside, straight line vascular refrigerator hot junction a lot of defectives are arranged still at present, on the function of flow morphology fast transition between hot junction plug inner realization slit body and the hot junction plug central through hole, existing version does not reach fully also that flow morphology fast transition, resistance are little, gas uniform distributes and without the requirement at gas flow dead angle, thereby has caused U-shaped and straight line vascular refrigerator the problem of inefficiency easily to occur yet.Have now in conventional U-shaped and the straight line vascular refrigerator hot junction flow guide structure at inner part, the junction of hot junction plug central through hole and slit body is mainly by two kinds of structure types.
The first as shown in Figure 4, hot junction plug 8 inserts in the hot end heat exchangers 2, hot junction plug 8 upper ends and slit body 10 junctions are made into cylinder shape groove 13.
The second as shown in Figure 5, hot junction plug 8 inserts in the hot end heat exchangers 2, hot junction plug 8 upper ends and slit body 10 junctions are made into cone shaped opening 13.
The junction form of above-mentioned two kinds of hot junction plug central through holes and slit body presents the gradual evolution process, but still has obvious defective separately:
The first form, such as Fig. 4, hot junction plug 8 central through holes 12 of small-bore will join with heavy in section slit body 10, the opening of hot junction plug 10 upper ends is made into cylinder shape groove 13, diffusion was come and is entered in the slit body 10 after gas flowed out from hot junction plug 8 central through holes 12, because opening has been made into cylindrical, although done the round-corner transition processing around the base angle, but only can form fan-shaped diffusingsurface from hot junction plug 8 central through holes 12 effluent airs, around the place, base angle air-flow low-pressure area 14 can appear, cause the generation of eddy current, had a strong impact on the flowing velocity of gas, this will lower the efficient of refrigeration machine greatly.
The second form, such as Fig. 5, hot junction plug 8 is made into taper shape with the opening form of slit body 10 junctions, eliminated the cylinder shape groove air-flow low-pressure area at base angle all around, but because the gas in the pulse tube refrigerating machine is in higher-order of oscillation state all the time, gas is alternately passing through cone shaped opening 13 under the flow regime, so when gas flows into cone shaped opening 13 by hot junction plug 8 central through holes 12, a kind of situation will occur, the gas of rapid movement can't enter with straight line the fringe region of slit body 10 along straight taper surface, and cone shaped opening 13 edge narrow spaces, make gas herein can't be as the gas of cone shaped opening 13 central areas quick by slit body 10, cause gas flow rate slowly to form the gas stagnant area, it is gas flow dead angle 14, such situation makes gas fail to enter along the whole coverage rate of slit body 10, but the situation of having given prominence in the middle of having occurred, thereby make the gas that flows in the slit body 10 can't realize laminarization fully, and affect heat exchange efficiency between the fin in gas and the slit body 10, cause the attenuating of refrigerating efficiency.
Summary of the invention
In view of the defective that above-mentioned prior art exists, this patent proposes a kind of U-shaped and straight pulse pipe refrigeration machine hot junction flow guide structure at inner part.
The purpose of this patent is, designs a kind of novel being fit at hot junction plug U-shaped and inside, straight pulse pipe refrigeration machine hot junction and is in the two-way gradual change curved surface passage that gas passes through under the quick alternately flow regime.At first realized gas under the state that alternately flows with the flow losses of minimum by slit body and plug central through hole abrupt change of cross-section junction, hot junction, the gas that enters regenerator from hot junction plug central through hole can be evenly distributed fully before entering the slit body for next, avoided the dead angle area that is harmful in the circulation, fluid smoothly, will help fluid to form laminar flow in regenerator by the slit body stably improves refrigerating efficiency.
U-shaped and straight pulse pipe refrigeration machine hot junction flow guide structure at inner part is comprised of hot end heat exchanger 2, water conservancy diversion stem stem 11, hot junction plug 8 three parts, it is characterized in that, regenerator 3, pulse tube 5 are inserted in hot end heat exchanger 2 upper end step holes 18, and weld together, hot end heat exchanger 2 inside center are T shape through hole 20, be slit body 10 structures around the T shape through hole 20, it is 0.1～0.2mm by 48～60 width, and the slit of 360 degree annular array forms take hot end heat exchanger 2 axis as the center of circle; The T shape through hole 20 interior insertion Water conservancy diversion core posts 11 at hot end heat exchanger 2 centers, water conservancy diversion stem stem 11 also is T shape structure, step surface 23 is adjacent to the step surface 20 of hot end heat exchanger 2 external slit bodies 10, water conservancy diversion stem stem 11 centers are 0.8～1.2mm through hole 22, the position is for taking the axis as 10～15 uniform slits 24 of center of circle annular beyond wall thickness 0.8～1.0mm around the through hole 22, and slot width is 0.05～1.0mm; Hot junction plug 8 inserts in the hot end heat exchanger 2 lower end stepped holes 21, upper surface 22 and the hot end heat exchanger 2 interior step faces 15 of hot junction plug 8 are adjacent to, two-way gradual change curved surface 16 upper ends of hot junction plug 8 inside and the border all around of slit body 10 are matched, and two-way gradual change curved surface 16 upper and lower ends of hot junction plug 8 inside and slit body 10 cylindricals and hot junction plug central through hole 12 are tangent; Hot junction plug 8 usefulness screws and sealing ring closely are connected on the hot end heat exchanger 2, thereby form the hot junction flow guide structure at inner part of U-shaped and straight line vascular refrigerator.
Manufacture method U-shaped and straight pulse pipe refrigeration machine hot junction flow guide structure at inner part is as follows: be processed into T shape through hole 20 at hot end heat exchanger 2 centers first.Use line cutting technology around the T shape through hole 20, vertically evenly cut into the slit 10 of 48～60 360 degree annular array centered by the axis in hot end heat exchanger 2 inside, groove width 0.1～0.2mm; The slit 10 usefulness feeler gauges that cutting is finished insert the slit cleaning, the burr of reconditioning inside, avoid being out of shape the obstruction that causes because of fin, water conservancy diversion stem stem 11 finish turnings become T-shaped structure, wear central through hole 20, finish again the cutting of slit body 25 with line cutting technology, the large external diameter of water conservancy diversion stem stem position 26 is near regenerator 3, insert first water conservancy diversion stem stem 11 and could fill regenerator 3, water conservancy diversion stem stem 11 is tiny, yielding, need to meticulously insert again in the slit body 10 of hot end heat exchanger 2 after the finishing, hot junction plug 8 inner section transition position finish turning flue two-wire gradual change curved surfaces 16 openings, highly be 6～10mm, two-way gradual change curved surface 16 needs the surface finish polishing behind finish turning, two-way gradual change curved surface 16 two ends are tangent with hot end heat exchanger external slit body 10 cylindricals and hot junction plug central through hole 12 respectively, hot junction plug 8 whole insertions in the hot end heat exchanger 2, fit with hot end heat exchanger 2 interior step faces 15 in plug 8 upper surfaces 22 in hot junction, the seal groove 17 of hot end heat exchanger 2 lower surfaces is put into the O RunddichtringO, with screw hot junction plug 8 closely is connected on the hot end heat exchanger 2, regenerator 3 inserts hot end heat exchanger 2 upper end step holes 18, and integrally welded, and then with whole refrigeration machine remaining part cool end heat exchanger 4, pulse tube 5, phase modulating mechanism 6 is combined into an integral body of sealing.
The characteristics of this patent are as follows:
1) the water conservancy diversion stem stem of the inner band annular slit that inserts of hot junction slit body, eliminated the weak wedge angle of hot junction slit body heat transmission fin, narrow annular slot has further increased the heat exchange area of gas, accelerated heat is transmitted, and makes the gas of center, hot junction also can cross heat exchanger by the same the same steady flow of gas of slit body on every side;
2) gas enters hot junction plug central through hole from the slit body, because slit body below is the tubaeform two-way gradual transition curved surface opening that guides gas, there is not the obstruction on any flowing in the below of slit body, and gas can flow through cmpletely the slit body and enter hot junction plug central through hole;
3) gas that oppositely flows back to from hot junction plug central through hole, can be in inner full and uniform the scattering in two-way gradual change surface blending place of hot junction plug, because the top edge of curved surface is tangent with slit body inner hole surface, make comparing the low-angle wedge angle of conical transition space near the surface blending place of slit body and want large many, can to cause entering around the slit body gas flow rate at position not slow because of space narrow and small, avoided flowing into the gas center distinct issues of slit body.Make the complete laminarization of gas energy in the slit body, improved refrigerating efficiency.
Above-mentioned advantage will promote raising U-shaped and straight pulse pipe refrigeration machine hot junction internal diversion performance greatly, all will have very positive meaning to lifting and the practical engineering application of the overall performance of U-shaped and straight pulse pipe refrigeration machine.
Description of drawings
Fig. 1 is three kinds of exemplary configurations mode schematic diagrames of pulse tube refrigerating machine;
Fig. 2 is the U-shaped pulse tube refrigerating machine complete machine internal structure schematic diagram of (not containing compressor and phase modulating mechanism);
Fig. 3 is the linear pattern pulse tube refrigerating machine complete machine internal structure schematic diagram of (not containing compressor and phase modulating mechanism);
Fig. 4 is that the hot junction plug is made into the U-shaped of cylinder shape groove and straight pulse pipe refrigeration machine hot junction flow guide structure at inner part schematic diagram;
Fig. 5 is that the hot junction plug is made into the U-shaped of cone shaped opening and straight pulse pipe refrigeration machine hot junction flow guide structure at inner part schematic diagram;
Fig. 6 hot junction plug be made into two-way gradient ramp transition opening U-shaped and straight pulse pipe refrigeration machine hot junction flow guide structure at inner part schematic diagram;
Fig. 7 is U-shaped and straight pulse pipe refrigeration machine hot junction plug cutaway view;
Fig. 8 is U-shaped and straight pulse pipe refrigeration machine hot end heat exchanger cutaway view;
Fig. 9 is U-shaped and straight pulse pipe refrigeration machine hot end heat exchanger top view;
Figure 10 is water conservancy diversion stem stem top view;
Figure 11 is water conservancy diversion stem stem cutaway view;
Wherein: 1 is compressor; 2 is hot end heat exchanger; 3 is regenerator; 4 is cool end heat exchanger; 5 is pulse tube; 6 is phase modulating mechanism; 7 is air reservoir; 8 is the hot junction plug; 9 is hot junction plug adpting flange; 10 is the slit body; 11 is the water conservancy diversion stem stem; 12 is hot junction plug central through hole; 13 is hot junction plug inner section transition region; 14 is the gas flow dead angle area; 15 is hot end heat exchanger interior step face; 16 is the inner two-way gradual change curved surface of hot junction plug; 17 is hot end heat exchanger lower surface seal groove; 18 is hot end heat exchanger upper end step hole; 19 is hot end heat exchanger slit body endoporus step surface; 20 is the inner T shape of hot end heat exchanger through hole; 21 is hot end heat exchanger lower end stepped hole; 22 is plug upper surface, hot junction; 23 is water conservancy diversion stem stem central through hole; 24 is Water conservancy diversion core pylon terrace; 25 is water conservancy diversion stem stem slit; 26 is the large external diameter of water conservancy diversion stem stem position.
The specific embodiment
Be described in further detail below in conjunction with accompanying drawing and the example specific embodiment to this patent;
Fig. 6 is the U-shaped and straight pulse pipe refrigeration machine hot junction flow guide structure at inner part detailed maps of inventing, and comprises hot end heat exchanger 2, regenerator 3, water conservancy diversion stem stem 11, hot junction plug 8, and the flow distribution of internal gas.
Fig. 7 is hot junction plug generalized section.
U-shaped and the straight pulse pipe refrigeration machine hot junction flow guide structure at inner part of inventing, formed by hot end heat exchanger 2, water conservancy diversion stem stem 11, hot junction plug 8 three parts, it is characterized in that, regenerator 3, pulse tube 5 are inserted in hot end heat exchanger 2 upper end step holes 18, and weld together, hot end heat exchanger 2 inside center are T shape through hole 20, are slit body 10 structures around the T shape through hole 20, be 0.15mm by 50 width, the slits of 360 degree annular array form take hot end heat exchanger 2 axis as the center of circle; The T shape through hole 20 interior insertion Water conservancy diversion core posts 11 at hot end heat exchanger 2 centers, water conservancy diversion stem stem 11 also is T shape structure, step surface 23 is adjacent to the step surface 20 of hot end heat exchanger 2 external slit bodies 10, water conservancy diversion stem stem 11 centers are 0.9mm through hole 22, the position is for taking the axis as 12 uniform slits 24 of center of circle annular beyond the wall thickness 0.9mm around the through hole 22, and slot width is 0.08mm; Hot junction plug 8 inserts in the hot end heat exchanger 2 lower end stepped holes 21, upper surface 22 and the hot end heat exchanger 2 interior step faces 15 of hot junction plug 8 are adjacent to, two-way gradual change curved surface 16 upper ends of hot junction plug 8 inside and the border all around of slit body 10 are matched, and two-way gradual change curved surface 16 upper and lower ends of hot junction plug 8 inside and slit body 10 cylindricals and hot junction plug central through hole 12 are tangent; Hot junction plug 8 usefulness screws and sealing ring closely are connected on the hot end heat exchanger 2, thereby form the hot junction flow guide structure at inner part of U-shaped and straight line vascular refrigerator.
The manufacture method U-shaped and straight pulse pipe refrigeration machine hot junction flow guide structure at inner part of inventing can be implemented as follows: be processed into T shape through hole 20 at hot end heat exchanger 2 centers first.Use line cutting technology around the T shape through hole 20, vertically evenly cut into the slit 10 of 50 360 degree annular array centered by the axis in hot end heat exchanger 2 inside, groove width 0.15mm; The slit 10 usefulness feeler gauges that cutting is finished insert the slit cleaning, the burr of reconditioning inside, avoid being out of shape the obstruction that causes because of fin, water conservancy diversion stem stem 11 finish turnings become T-shaped structure, wear central through hole 20, finish again the cutting of slit body 25 with line cutting technology, the large external diameter of water conservancy diversion stem stem position 26 is near regenerator 3, insert first water conservancy diversion stem stem 11 and could fill regenerator 3, water conservancy diversion stem stem 11 is tiny, yielding, need to meticulously insert again in the slit body 10 of hot end heat exchanger 2 after the finishing, hot junction plug 8 inner section transition position finish turning flue two-wire gradual change curved surfaces 16 openings, highly be 8mm, two-way gradual change curved surface 16 needs the surface finish polishing behind finish turning, two-way gradual change curved surface 16 two ends are tangent with hot end heat exchanger external slit body 10 cylindricals and hot junction plug central through hole 12 respectively, hot junction plug 8 whole insertions in the hot end heat exchanger 2, fit with hot end heat exchanger 2 interior step faces 15 in plug 8 upper surfaces 22 in hot junction, the seal groove 17 of hot end heat exchanger 2 lower surfaces is put into the O RunddichtringO, with screw hot junction plug 8 closely is connected on the hot end heat exchanger 2, regenerator 3 inserts hot end heat exchanger 2 upper end step holes 18, and integrally welded, and then with whole refrigeration machine remaining part cool end heat exchanger 4, pulse tube 5, phase modulating mechanism 6 is combined into an integral body of sealing.
Claims (1)
1. U-shaped and straight pulse pipe refrigeration machine hot junction flow guide structure at inner part, by hot end heat exchanger (2), water conservancy diversion stem stem (11), plug (8) three parts in hot junction form, it is characterized in that, regenerator (3) is inserted in hot end heat exchanger (2) upper end step hole (18), pulse tube (5), and weld together, hot end heat exchanger (2) inside center is T shape through hole (20), T shape through hole (20) is slit body (10) structure all around, it is 0.1～0.2mm by 48～60 width, and the slit of 360 degree annular array forms take hot end heat exchanger (2) axis as the center of circle; Insert Water conservancy diversion core post (11) in the T shape through hole (20) at hot end heat exchanger (2) center, water conservancy diversion stem stem (11) also is T shape structure, step surface (24) is adjacent to the step surface (19) of hot end heat exchanger (2) slit body (10), water conservancy diversion stem stem (11) center is 0.8～1.2mm through hole (23), the position is for being annular uniform 10～15 slits (25) in the center of circle take the axis beyond wall thickness 0.8～1mm all around for through hole (23), and slot width is 0.05～1mm; Hot junction plug (8) inserts in hot end heat exchanger (2) the lower end stepped hole (21), the upper surface (22) of hot junction plug (8) is adjacent to hot end heat exchanger (2) interior step face (15), inner two-way gradual change curved surface (16) upper end of hot junction plug (8) and the border all around of slit body (10) are matched, and two-way gradual change curved surface (16) upper and lower end that hot junction plug (8) is inner and slit body (10) cylindrical and hot junction plug central through hole (12) are tangent; Hot junction plug (8) closely is connected on the hot end heat exchanger (2) with screw and sealing ring, thereby forms the hot junction flow guide structure at inner part of U-shaped and straight line vascular refrigerator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201425809U CN203249422U (en) | 2013-03-26 | 2013-03-26 | Internal flow guide structure at hot end of U-shaped and linear pulse tube refrigerating machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201425809U CN203249422U (en) | 2013-03-26 | 2013-03-26 | Internal flow guide structure at hot end of U-shaped and linear pulse tube refrigerating machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203249422U true CN203249422U (en) | 2013-10-23 |
Family
ID=49375859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013201425809U Withdrawn - After Issue CN203249422U (en) | 2013-03-26 | 2013-03-26 | Internal flow guide structure at hot end of U-shaped and linear pulse tube refrigerating machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203249422U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103175329A (en) * | 2013-03-26 | 2013-06-26 | 中国科学院上海技术物理研究所 | Flow guide structure inside hot end of U-type / linear pulse tube refrigerating machine and manufacturing method thereof |
| CN105042922A (en) * | 2015-07-07 | 2015-11-11 | 中国科学院理化技术研究所 | Pulse tube refrigerator and flow guide structure thereof |
| CN105222389A (en) * | 2015-09-25 | 2016-01-06 | 中国科学院理化技术研究所 | A kind of vascular refrigerator |
| CN112240650A (en) * | 2020-09-15 | 2021-01-19 | 中国科学院上海技术物理研究所 | Straight-through slit precooling heat exchanger of precooling type low-temperature throttling refrigerator and manufacturing method |
-
2013
- 2013-03-26 CN CN2013201425809U patent/CN203249422U/en not_active Withdrawn - After Issue
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103175329A (en) * | 2013-03-26 | 2013-06-26 | 中国科学院上海技术物理研究所 | Flow guide structure inside hot end of U-type / linear pulse tube refrigerating machine and manufacturing method thereof |
| CN103175329B (en) * | 2013-03-26 | 2014-11-26 | 中国科学院上海技术物理研究所 | Flow guide structure inside hot end of U-type / linear pulse tube refrigerating machine and manufacturing method thereof |
| CN105042922A (en) * | 2015-07-07 | 2015-11-11 | 中国科学院理化技术研究所 | Pulse tube refrigerator and flow guide structure thereof |
| CN105042922B (en) * | 2015-07-07 | 2017-05-24 | 中国科学院理化技术研究所 | Pulse tube refrigerator and flow guide structure thereof |
| CN105222389A (en) * | 2015-09-25 | 2016-01-06 | 中国科学院理化技术研究所 | A kind of vascular refrigerator |
| CN112240650A (en) * | 2020-09-15 | 2021-01-19 | 中国科学院上海技术物理研究所 | Straight-through slit precooling heat exchanger of precooling type low-temperature throttling refrigerator and manufacturing method |
| CN112240650B (en) * | 2020-09-15 | 2021-11-19 | 中国科学院上海技术物理研究所 | Straight-through slit precooling heat exchanger of precooling type low-temperature throttling refrigerator and manufacturing method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103090578B (en) | Coaxial type pulse pipe refrigerator hot end inner diversion structure and manufacturing method thereof | |
| CN203132196U (en) | Hot end internal guide structure of coaxial-type pulsed tube refrigerating machine | |
| CN203249422U (en) | Internal flow guide structure at hot end of U-shaped and linear pulse tube refrigerating machine | |
| CN103175329B (en) | Flow guide structure inside hot end of U-type / linear pulse tube refrigerating machine and manufacturing method thereof | |
| CN101298947B (en) | Screw thread welding integral narrow slit type coaxial pulse-tube refrigerator | |
| CN107356008B (en) | Intermediate heat exchanger of coaxial type primary Stirling secondary pulse tube mixed refrigerator | |
| CN110486980B (en) | Micro-channel throttling refrigerator | |
| CN106642822A (en) | Secondary intermediate heat exchanger for thermal coupling coaxial two-stage pulse pipe refrigerator and design method | |
| CN103196255B (en) | Streamline air inlet structure for coaxial pulse tube refrigerator and method for manufacturing streamline air inlet structure | |
| CN203249421U (en) | Streamline-shaped air inlet structure of coaxial type pulse tube refrigerating machine | |
| CN103115453B (en) | Linear type streamlined air inlet structure and manufacturing method of pulse tube refrigerator | |
| CN201340150Y (en) | Liquid distributing head | |
| CN207299597U (en) | Coaxial type level-one Stirling two level vascular hybrid refrigeration machine Intermediate Heat Exchanger | |
| CN108036539A (en) | For co-axial pulse tube refrigerator band flow-guiding structure narrow slit type cold junction and manufacture method | |
| JP2005265261A (en) | Pulse pipe refrigerator | |
| CN112240650B (en) | Straight-through slit precooling heat exchanger of precooling type low-temperature throttling refrigerator and manufacturing method | |
| CN106225523A (en) | A kind of Oscillating flow heat exchanger | |
| CN109340379B (en) | Low-temperature helium gas transmission sealing structure of superconducting rotating machinery | |
| CN203132197U (en) | Vertical-type streamline-shaped air inflow structure of pulse tube refrigerating machine | |
| CN207132760U (en) | It is a kind of for the heat exchange sleeve of oil cooling machine, oil cooling machine and oil cooling machine cooling system | |
| CN113865403A (en) | Fin heat exchanger | |
| CN103090577A (en) | Vertical streamline-shaped air inlet structure of pulse pipe refrigerator and manufacturing method thereof | |
| CN114632847B (en) | Preparation method of inner coil pipe of heat exchanger and inner coil pipe | |
| CN203132198U (en) | Vertical-type streamline-shaped air inflow structure of pulse tube refrigerating machine | |
| CN111366025B (en) | Block-hole type graphite heat exchanger and heat exchange method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20131023 Effective date of abandoning: 20141126 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20131023 Effective date of abandoning: 20141126 |
|
| RGAV | Abandon patent right to avoid regrant |