CN1304799C - Dual-way air-intake vascular refrigeator with corrugated pipe direct-current blocking-up structure - Google Patents
Dual-way air-intake vascular refrigeator with corrugated pipe direct-current blocking-up structure Download PDFInfo
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- CN1304799C CN1304799C CNB2005100610018A CN200510061001A CN1304799C CN 1304799 C CN1304799 C CN 1304799C CN B2005100610018 A CNB2005100610018 A CN B2005100610018A CN 200510061001 A CN200510061001 A CN 200510061001A CN 1304799 C CN1304799 C CN 1304799C
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- China
- Prior art keywords
- vascular
- pulse pipe
- heat exchanger
- regenerator
- heat regenerator
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- 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.)
- Expired - Fee Related
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- 230000002792 vascular Effects 0.000 title claims description 73
- 238000007789 sealing Methods 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 3
- 238000005728 strengthening Methods 0.000 abstract description 2
- 230000000903 blocking effect Effects 0.000 abstract 2
- 239000000126 substance Substances 0.000 abstract 2
- 238000000034 method Methods 0.000 description 6
- 238000005057 refrigeration Methods 0.000 description 6
- 239000007789 gas Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 230000002000 scavenging effect Effects 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
- F25B9/14—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the cycle used, e.g. Stirling cycle
- F25B9/145—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the cycle used, e.g. Stirling cycle pulse-tube cycle
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- 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
- F25B2309/1408—Pulse-tube cycles with pulse tube having U-turn or L-turn type geometrical arrangements
-
- 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
- F25B2309/1424—Pulse tubes with basic schematic including an orifice and a reservoir
- F25B2309/14241—Pulse tubes with basic schematic including an orifice reservoir multiple inlet pulse tube
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The present invention discloses a two-way air intake pulse pipe refrigerator with a bellows direct current blocking structure, which comprises a compressor, a hot end heat exchanger of a heat regenerator, the heat regenerator, a cold head, a pulse pipe, a hot end heat exchanger of the pulse pipe, a small hole valve and an air storehouse, wherein the compressor, the hot end heat exchanger of the heat regenerator, the heat regenerator, the cold head, the pulse pipe, the hot end heat exchanger of the pulse pipe, the small hole valve and the air storehouse are orderly connected, the hot end of the pulse pipe is provided with the bellows direct current blocking structure, and a capillary is arranged between an air intake of the heat regenerator and the hot end of the pulse pipe. The present invention not only keeps the advantages of original second air intake of reducing the loss of the heat regenerator through shunting a part of the flow capacity of working substances flowing through the heat regenerator, improving the adjusting capacity of the phase relationship of alternative flow pressure waves and speed waves of the working substances in the refrigerator and strengthening the amplitude of the inner pressure of the pulse pipe, etc., but also simultaneously blocks direct current flow along the heat regenerator, the pulse pipe and a second air intake loop. Influence to refrigerating temperature and refrigerating capacity caused by direct current is eliminated, and the present invention solves the problem of traditional two-way air intake pulse pipe refrigerators that operating stability is poor due to the direct current.
Description
Technical field
The present invention relates to a kind of dual-way air-intake vascular refrigeator with corrugated pipe direct-current blocking-up structure.
Background technology
Vascular refrigerator has been owing to removed low temperature movement parts---displacer, thereby avoided problems such as the slipper seal low temperature under, mechanical wear, is expected really to become low cost, lowly vibrates, the long-life Cryo Refrigerator of stable and reliable operation.Particularly along with the proposition of phase modulation structures such as aperture and air reservoir, bidirection air intake and successfully utilization, the vascular refrigerator cryogenic temperature constantly reduces, refrigerating capacity and refrigerating efficiency also significantly improve, near in addition under some operating mode, surpass traditional regenerating type low-temperature refrigerator (as: G-M refrigeration machine, Stirling refrigeration machine etc.), in the cooling of superconductive device and infrared equipment, and the aspects such as liquefaction of cryogen are able to practical application.Yet, bidirection air intake phase modulation structure is by pipeline connection regenerator air inlet and vascular hot junction, form second air inlet, in bypass the regenerator of partly flowing through working medium flow and improve THERMAL REGENERATOR EFFICIENCIES, strengthen the regulating power of refrigerating device inner pressure wave and speed wave phase relation, and when strengthening vascular internal pressure wave-amplitude, also formed the closed-loop path that constitutes by regenerator, vascular and second air inlet, during refrigerator operation, may occur in the loop flowing to vascular or rightabout additional clean mass flow through cold head, also claim the Gedeon direct current from regenerator.The existence of Gedeon direct current not only influences cryogenic temperature, loss part refrigerating capacity, and cause the refrigerator operation state labile, hindered the practicalization of vascular refrigerator.
Summary of the invention
The purpose of this invention is to provide a kind of dual-way air-intake vascular refrigeator with corrugated pipe direct-current blocking-up structure.
It comprises compressor, regenerator hot end heat exchanger, regenerator, cold head, vascular, vascular hot-side heat exchanger, little ports valve, the air reservoir that is connected successively, hot junction at vascular is provided with corrugated pipe direct-current blocking-up structure, is provided with capillary between the hot junction of regenerator air inlet and vascular.
Described corrugated pipe direct-current blocking-up structure is the bellows of one section one end sealing, is positioned at vascular, is coaxial arrangement with vascular, and its openend is near vascular hot-side heat exchanger, and with the welding of vascular inwall, the bellows inner chamber is communicated with vascular hot-side heat exchanger.
The present invention adopts corrugated pipe direct-current blocking-up structure, both guaranteed that second air inlet reduced the advantage of regenerator loss by shunting, and to the regulating power of working medium alternating flow dynamic pressure Reeb and speed wave phase relation in the vascular with to the invigoration effect of vascular internal pressure amplitude, having cut off simultaneously the direct current that is circulated in regenerator, vascular and the second air inlet loop again flows, and then eliminate the negative influence of direct current to cryogenic temperature and refrigerating capacity, solved in traditional dual-way air-intake vascular refrigeator because the operation stability problem that direct current causes.
In addition, the present invention adopts capillary to replace needle-valve as second air intake structure, has avoided using the inconvenience that brings because the needle-valve aperture is regulated to the user.
Description of drawings
Accompanying drawing is the dual-way air-intake vascular refrigeator structural representation with corrugated pipe direct-current blocking-up structure.
The specific embodiment
As shown in drawings, dual-way air-intake vascular refrigeator with corrugated pipe direct-current blocking-up structure comprises compressor 1, regenerator hot end heat exchanger 2, regenerator 3, cold head 4, vascular 5, vascular hot-side heat exchanger 6, aperture valve 7, the air reservoir 8 that is connected successively, be provided with corrugated pipe direct-current blocking-up structure 9 in the hot junction of vascular 5, between the hot junction of regenerator 3 air inlets and vascular 5, be provided with capillary 10.
Described corrugated pipe direct-current blocking-up structure 9 is the bellows of one section one end sealing, is positioned at vascular, is coaxial arrangement with vascular, and its openend is near vascular hot-side heat exchanger, and with the welding of vascular inwall, the bellows inner chamber is communicated with vascular hot-side heat exchanger.
In dual-way air-intake vascular refrigeator when operation with corrugated pipe direct-current blocking-up structure, the pressure wave that produces with compressor is realized refrigeration effect as drive source in reciprocal charging and discharging in the gas process.Specifically, in gas replenishment process, gases at high pressure from compressor are shunted at the regenerator air inlet, a part is flowed through after regenerator hot end heat exchanger, regenerator carry out precooling, enter the vascular cold junction by cold head, another part enters bellows inner chamber (wherein part working medium flows into air reservoir through the aperture valve) through capillary second air inlet and vascular hot-side heat exchanger, passes the bellows blind end and moves to vascular cold junction direction, working medium is compressed in the vascular, and vascular hot-side heat exchanger is taken the heat of compression out of system.In deflation course, the regenerator air inlet is in low pressure, and working medium expands and lowers the temperature in the vascular, the part working medium of vascular cold junction, cold passed to cold head after, flow to the hot junction from the regenerator cold junction, filler in the cooling back-heating device for next gas replenishment process deposit cold, turns back to compressor at last; And vascular inner corrugated pipe blind end moves to vascular hot junction direction, and the working medium that promotes in the bellows is got back to compressor (at this moment, the part working medium in the air reservoir also turns back to compressor through capillary second air inlet) through vascular hot end heat exchanger and capillary second air inlet.So go round and begin again, cold junction temperature descends gradually, up to reaching poised state.
Since the second air inlet bypass working medium of the regenerator of partly flowing through, reduced the regenerator flow losses, improved THERMAL REGENERATOR EFFICIENCIES.And according to enthalpy stream phase modulation theory, the theoretical refrigerating capacity of vascular refrigerator equals the enthalpy stream of vascular of flowing through, and works as pressure wave and the same phase time of speed wave in the vascular, and the enthalpy stream in the vascular is maximum.Under aperture and air reservoir phase modulation structure operational mode, pressure wave in the vascular always lags behind the quality ripple, and by the mass flow of second air inlet to the introducing of vascular hot junction, can impel at the cold junction of vascular and realize pressure wave and speed wave homophase, pressure wave is ahead of speed wave even, thereby required pressure wave of efficient vascular process of refrigerastion and speed wave phase relation are provided.Simultaneously, the mass flow of introducing to the vascular hot junction by second air inlet also can be strengthened the compression-expansion process of working medium in the vascular, improves its refrigeration performance.In the present invention, the bellows of one section one end sealing is installed in the vascular hot junction, the blind end of bellows is under its pressure at both sides difference effect and move back and forth, realize the transmission of pressure wave and speed wave, simultaneously space in the vascular is divided into two parts, blocking-up can realize long-term efficient, the stable operation of vascular refrigerator along the Gedeon direct current in regenerator, vascular and second air inlet pipe formation loop.The size that must be noted that bellows is the key parameter that guarantees that refrigeration machine can normally move.In the design, need according to the scavenging volume that tolerance is determined the bellows blind end that charges and discharge that enters the vascular hot junction by second air inlet, guaranteeing that the reciprocal telescopic process of bellows does not take place under the friction prerequisite with the vascular inwall, adopt larger-diameter bellows as far as possible, so that shorten the length and the stroke that reduces its blind end of bellows, guarantee that simultaneously bellows is operated near the warm area of room temperature.So both can guarantee the refrigeration machine operate as normal, help prolonging the life-span of bellows again.
In the present invention, optimize the flow resistance characteristic capillaceous as second air inlet by experiment, determine its length and diameter, the user need not again any adjusting to be done in second air inlet.
Claims (2)
1. dual-way air-intake vascular refrigeator with corrugated pipe direct-current blocking-up structure, it comprises compressor (1), regenerator hot end heat exchanger (2), regenerator (3), cold head (4), vascular (5), vascular hot-side heat exchanger (6), little ports valve (7), the air reservoir (8) that is connected successively, it is characterized in that, be provided with corrugated pipe direct-current blocking-up structure (9) in the hot junction of vascular (5), between the hot junction of regenerator (3) air inlet and vascular (5), be provided with capillary (10).
2. a kind of dual-way air-intake vascular refrigeator according to claim 1 with corrugated pipe direct-current blocking-up structure, it is characterized in that, described corrugated pipe direct-current blocking-up structure (9) is the bellows of one section one end sealing, be positioned at vascular, be coaxial arrangement with vascular, its openend is near vascular hot-side heat exchanger, and with the welding of vascular inwall, the bellows inner chamber is communicated with vascular hot-side heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100610018A CN1304799C (en) | 2005-10-09 | 2005-10-09 | Dual-way air-intake vascular refrigeator with corrugated pipe direct-current blocking-up structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100610018A CN1304799C (en) | 2005-10-09 | 2005-10-09 | Dual-way air-intake vascular refrigeator with corrugated pipe direct-current blocking-up structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1743761A CN1743761A (en) | 2006-03-08 |
| CN1304799C true CN1304799C (en) | 2007-03-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100610018A Expired - Fee Related CN1304799C (en) | 2005-10-09 | 2005-10-09 | Dual-way air-intake vascular refrigeator with corrugated pipe direct-current blocking-up structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN1304799C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101943500A (en) * | 2009-07-03 | 2011-01-12 | 住友重机械工业株式会社 | Dual-way air-intake vascular refrigeator |
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| CN1818512B (en) * | 2006-03-14 | 2010-04-14 | 中国科学院理化技术研究所 | Device for eliminating straight flow of two-way air inlet pulsing pipe refrigerator |
| CN101551181B (en) * | 2009-05-18 | 2011-01-05 | 浙江大学 | Variable cross-section heat regenerator used in low-temperature refrigerator |
| CN101603743B (en) * | 2009-06-29 | 2012-07-11 | 浙江大学 | Acoustic power amplifier used in inertia tube phase adjustment and pulse tube refrigerator thereof |
| CN101806512B (en) * | 2010-04-09 | 2012-06-27 | 浙江大学 | Miniature pulse tube refrigerator based on optical fiber technology |
| CN103411359B (en) * | 2013-08-16 | 2015-11-04 | 中国科学院理化技术研究所 | A kind of adjustable double acting row ripple thermoacoustic system |
| CN105546866B (en) * | 2014-04-08 | 2018-01-02 | 浙江大学 | A kind of vascular refrigerator by the use of bellows as adjustable air reservoir |
| CN104764237B (en) * | 2015-04-02 | 2017-05-24 | 同济大学 | Controllable DC device capable of increasing refrigerating efficiency and improved pulse tube refrigerator |
| CN105042923A (en) * | 2015-08-24 | 2015-11-11 | 上海理工大学 | Pulse tube refrigerating machine pulse tube with slit type pulse tube device |
| CN106092536A (en) * | 2016-06-13 | 2016-11-09 | 中国科学院理化技术研究所 | A kind of Oscillating flow drag losses test device |
| CN106642837B (en) * | 2016-09-28 | 2019-10-15 | 浙江大学 | A kind of philip refrigerator of the built-in liquefier of band |
| CN108662804B (en) * | 2018-04-20 | 2019-12-24 | 浙江大学 | Pulse tube refrigerator adopting micro-channel bidirectional air inlet structure |
| CN108662803B (en) * | 2018-04-20 | 2019-12-24 | 浙江大学 | Pulse tube refrigerator adopting microchannel phase modulation device |
| CN112229085B (en) * | 2020-09-30 | 2021-07-09 | 西安交通大学 | Low-temperature heat pump circulating system and circulating method suitable for large temperature span |
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|---|---|---|---|---|
| CN2123040U (en) * | 1992-04-26 | 1992-11-25 | 西安交通大学 | Two-way intake reversible vessel refrigerator |
| JPH09113051A (en) * | 1995-10-19 | 1997-05-02 | Idoutai Tsushin Sentan Gijutsu Kenkyusho:Kk | Pulse tube refrigerator |
| JPH09296965A (en) * | 1996-04-29 | 1997-11-18 | Aisin Seiki Co Ltd | Pulse tube refrigerator |
| JP2000230755A (en) * | 1999-02-09 | 2000-08-22 | Daikin Ind Ltd | Pulse tube refrigerating machine |
| CN1619236A (en) * | 2004-11-24 | 2005-05-25 | 南京航空航天大学 | Built in film type bidirection air inlet structure vessel refrigerator |
-
2005
- 2005-10-09 CN CNB2005100610018A patent/CN1304799C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2123040U (en) * | 1992-04-26 | 1992-11-25 | 西安交通大学 | Two-way intake reversible vessel refrigerator |
| JPH09113051A (en) * | 1995-10-19 | 1997-05-02 | Idoutai Tsushin Sentan Gijutsu Kenkyusho:Kk | Pulse tube refrigerator |
| JPH09296965A (en) * | 1996-04-29 | 1997-11-18 | Aisin Seiki Co Ltd | Pulse tube refrigerator |
| JP2000230755A (en) * | 1999-02-09 | 2000-08-22 | Daikin Ind Ltd | Pulse tube refrigerating machine |
| CN1619236A (en) * | 2004-11-24 | 2005-05-25 | 南京航空航天大学 | Built in film type bidirection air inlet structure vessel refrigerator |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101943500A (en) * | 2009-07-03 | 2011-01-12 | 住友重机械工业株式会社 | Dual-way air-intake vascular refrigeator |
| CN101943500B (en) * | 2009-07-03 | 2012-12-12 | 住友重机械工业株式会社 | Double inlet type pulse tube refrigerator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1743761A (en) | 2006-03-08 |
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