CN1201127C - Cooler of pulse tube refrigerator - Google Patents
Cooler of pulse tube refrigerator Download PDFInfo
- Publication number
- CN1201127C CN1201127C CN 00131683 CN00131683A CN1201127C CN 1201127 C CN1201127 C CN 1201127C CN 00131683 CN00131683 CN 00131683 CN 00131683 A CN00131683 A CN 00131683A CN 1201127 C CN1201127 C CN 1201127C
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- CN
- China
- Prior art keywords
- aftercooler
- heat exchanger
- pulse tube
- body unit
- working gas
- 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.)
- Expired - Fee Related
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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
- F25B25/00—Machines, plants or systems, using a combination of modes of operation covered by two or more of the groups F25B1/00 - F25B23/00
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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
- F25B2309/1407—Pulse-tube cycles with pulse tube having in-line geometrical arrangements
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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
- F25B2309/1412—Pulse-tube cycles characterised by heat exchanger details
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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
- F25B2309/1424—Pulse tubes with basic schematic including an orifice and a reservoir
Abstract
The present invention relates to a cooler for pulse tube refrigerators. A refrigerating agent compressing type cooling loop is formed to ensure that when the temperature outside a refrigerator is high, the heat of a driving unit of working gas can be released fluently to enhance the efficiency of the refrigerator. The cooler comprises a driving unit, a refrigerating unit and a refrigerating agent compressing type cooling element, wherein the driving unit drives working gas to make reciprocating movement; the refrigerating unit comprises a pulse tube which has a low temperature part formed by the reciprocating movement of the working gas flowing in the driving unit; the refrigerating agent compressing type cooling element comprises a compressor, a condenser and an expanding part which are arranged outside an aftercooler and are sequentially connected with a refrigerating agent tube communicated with the aftercooler.
Description
Technical field
The present invention relates to pulse tube refrigerator, relate in particular to the cooling device of pulse tube refrigerator, the cooling device of this pulse tube refrigerator can constitute the heat that cool cycles discharges working gas and driver element as evaporimeter by utilizing aftercooler, and the working gas of the preferential cooling down high-temperature high pressure of this aftercooler.
Background technology
Usually, the cryogenic cooling machine is to be used to cool off the low vibration of small size electronic unit and superconductor and the refrigerator of high reliability, is extensive use of Stirling refrigerator, GM refrigerator or joule-thomson refrigerator.
As shown in Figure 1, common pulse tube refrigerator comprises: a driver element 100, this driver element 100 produce working gas and move back and forth; One refrigeration unit 200, this frigorific unit 200 produces the low temperature part by the thermodynamic cycle of being pumped the working gas that moves back and forth by driving element 100; One aftercooler 300, this aftercooler 300 connect between driver element 100 and frigorific unit 200, and the preferential HTHP working gas of pumping that cools off.
More particularly, aftercooler 300 connects between the piston-cylinder unit 110a of the storage heater 240 of frigorific unit 200 and driver element 100.
To introduce the structure of driver element 100, frigorific unit 200 and aftercooler 300 below in detail.
As shown in Figure 1, driver element 100 comprises that one has the sealing bellow 110 of piston-cylinder unit 110a, one is loaded on the CD-ROM drive motor 120 in the sealing bellow 110, a driving shaft 130 that cooperates and undertaken linear reciprocal movement with CD-ROM drive motor 120 by these CD-ROM drive motor 120 drivings, one links to each other with driving shaft 130, and pump the piston 140 of working gas, and cooperate with the upper and lower of driving shaft 130 in the sealing bellow 110 respectively by in piston-cylinder unit 110a, carrying out linear reciprocal movement, and make the guide support 151 and the elastic supporting piece 152 of CD-ROM drive motor harmonic moving and linear guide piston.
Introduce the structure of sealing bellow 110 below in detail.
Sealing bellow 110 comprises: upper frame 111, and the core of this upper frame 111 has piston-cylinder unit 110a; Central frame 112, this central frame 112 closely cooperates with the bottom surface of upper frame 111, and internal fixation has guide support, and firmly CD-ROM drive motor is installed; Under(-)chassis 113, this under(-)chassis 113 closely cooperates with the bottom surface of central frame 112, and is fixed with elastic supporting piece 152; And first seal closure, this first seal closure is sealed and matched in the outside of central frame 112 and the bottom surface of upper frame 111, so that cover central frame 112 and under(-)chassis 113.
And aftercooler 300 can be divided into Wind-cooling type and water-cooling type substantially.Wherein Wind-cooling type is to utilize outer gas stream to cool off the sidewall of this aftercooler with fan, at outside heat exchanger 330 places that link to each other with aftercooler 300 outer walls, and water-cooling type is to utilize other heat exchanger of pump, water and release hydro-thermal amount to carry out heat exchange with the outside.
To introduce the structure of aftercooler 300 in detail below.
Shown in Fig. 2 A, Wind-cooling type aftercooler 300 comprises: aftercooler body unit 310, this aftercooler body unit 310 is a hollow cylinder, and by the material that high thermal conductivity coefficient is arranged for example copper become, its upper surface is fixed on the base plate P that covers second seal closure, 250 bottoms, and its lower surface is fixed on the upper surface of upper frame 111; Inboard heat exchanger 320, this inboard heat exchanger is loaded on the inner circumferential surface of aftercooler body unit 310, and becomes screen cloth shape, so that enough heat exchange sizes are arranged when absorbing the heat of pumping working gas; And outside heat exchanger 330, this outside heat exchanger is a hollow cylinder, is installed on the external peripheral surface of aftercooler body unit 310, and a plurality of cooling studs are arranged, so as from inboard heat exchanger 320 to aftercooler body unit 310 outside release heat.
Shown in Fig. 2 B, water-cooling type aftercooler 300a comprises: the aftercooler body unit 310 identical with Wind-cooling type aftercooler 300; Be loaded on aftercooler body unit 310 in the identical inboard heat exchanger 320 of inboard heat exchanger; Outside heat exchanger 330a, this outside heat exchanger is a hollow cylinder, and a plurality of cooling studs that are loaded on the external peripheral surface of aftercooler body unit 310 are arranged; Insulation 340, this insulation 340 covers the external peripheral surface of outside heat exchanger 330a, so that produce enclosed area S; And pump 350 and heat exchanger 360, this pump 350 and heat exchanger 360 provide recirculated cooling water by the closed loop that passes insulation 340 to enclosed area S.
In the accompanying drawing, also not having the reference number 341 and 342 of explanation is the lid that a plurality of gas inflow/tap holes are arranged, and reference number 370 is bubble discharge pipes, and reference number F is a fan.
Introduce the course of work of common pulse tube refrigerator below.
When CD-ROM drive motor 120 energising and driver carry out linear reciprocal movement, the driving shaft 130 that cooperates with driver also carries out linear reciprocal movement, and the piston 140 that cooperates with driving shaft 130 carries out linear reciprocal movement in piston-cylinder unit 110a inside, so the working gas of frigorific unit 200 is pumped.
The working gas of pumping moves back and forth between cool end heat exchanger 212 and hot end heat exchanger 211, and sends the heat of cool end heat exchanger 212 to hot end heat exchanger 211, therefore forms the low temperature part at cool end heat exchanger 212 places.
When piston compresses, be transported to the compression work gas of frigorific unit 200 from piston-cylinder unit 110a, through aftercooler 300 time, be cooled, flow into again in the storage heater 240, and carry out heat exchange by storage heater 240, flow into then in the cool end heat exchanger 212 of pulse tube 210, store latent heat in this gas.
Working gas in the pulse tube 210, when being transported to hot end heat exchanger 211 and phase controller 220, owing to flowing into, working gas is compressed, when piston 140 aspirates, working gas in the pulse tube 210, when being transported to the cool end heat exchanger 212 of pulse tube 210, carry out adiabatic expansion, thereby form the low temperature part.
Equally, the working gas of discharging from pulse tube 210 is heated through storage heater 240 time, but heat release through aftercooler 300 time, and flow among the piston-cylinder unit 110a.
When aftercooler 300 is Wind-cooling type, receive each cooling stud of the outside heat exchanger 330 of working gas heat, the air of discharging with the incorporated fan F shown in Fig. 2 A contacts, thus heat release.
When aftercooler 300 was water-cooling type, the cooling water that is sent by pump pressure was by 360 coolings of outside heat exchanger, and circulation offers enclosed area S, thereby made 310 heat releases of aftercooler body unit.
Yet, in the additional heat exchanger of normal pulsed pipe refrigerator, the inboard heat exchanger of screen cloth shape is contained in the inboard of aftercooler, and the heat exchanger of Wind-cooling type or water-cooling type is contained in the outside of aftercooler, thereby the heat of working gas and driver element generation is discharged.
But when serviceability temperature was high, the exothermal efficiency of Wind-cooling type and water-cooling type heat exchanger reduced, and the temperature that flows into the working gas of frigorific unit raises, and cooling effectiveness reduces with the temperature rising of working gas.
In order to compensate the reduction of cooling effectiveness, driver element has to increase driving force, so the gross efficiency of refrigerator reduces.
Especially, in the water-cooling type heat exchanger, the structure closed loop is very difficult, because be difficult to make the cooling water loop to be full of cooling water, because the generation of bubble, need extra bubble discharge pipe,, therefore must replenish cooling water at any time in loop because the cooling water that circulates can flow out by the bubble discharge pipe.
Also need extra filter (not shown) or antirust agent in addition, generate a certain amount of impurity in the pipeline because cooling water can make.
Summary of the invention
An object of the present invention is to provide a kind of cooling device of pulse tube refrigerator, this cooling device is constructed the cooling loop of a compression refrigeration formulation by utilizing aftercooler as evaporimeter, discharge the heat of working gas and driver element glibly thereby work as refrigerator external temperature Gao Shineng, thereby can increase the efficient of this refrigerator.
As mentioned above, the cooling device of pulse tube refrigerator of the present invention comprises: driver element, this driver element can make working gas produce and move back and forth; Frigorific unit, this frigorific unit comprises pulse tube, this pulse tube has the low temperature part by the reciprocating motion generation of the working gas that flows in driver element; And compression refrigeration formulation cooling device, this compression refrigeration formulation cooling element assigns to constitute cooling loop by means of connect and make the aftercooler as evaporimeter, compressor, condenser and the bulge that working gas flows through between driver element and frigorific unit, described compressor, condenser and dilation are positioned at the outside of aftercooler, and sequentially link to each other with the refrigerant tube that is communicated with aftercooler.
Description of drawings
Fig. 1 is the vertical cross section of normal pulsed pipe refrigerator;
Fig. 2 A is the vertical cross section of the Wind-cooling type aftercooler of normal pulsed pipe refrigerator;
Fig. 2 B is the vertical cross section of the water-cooling type aftercooler of normal pulsed pipe refrigerator;
Fig. 3 is the vertical cross section of first embodiment of the cooling device of pulse tube refrigerator of the present invention;
Fig. 4 is the vertical cross section of second embodiment of the cooling device of pulse tube refrigerator of the present invention;
Fig. 5 is the vertical cross section of the 3rd embodiment of the cooling device of pulse tube refrigerator of the present invention.
The specific embodiment
Introduce the preferred embodiment of the cooling device of pulse tube refrigerator of the present invention below with reference to the accompanying drawings.
Represent with same numeral with the parts that Fig. 1 and Fig. 2 repeat, and omission is to their explanation.
As shown in Figure 3, the cooling device of pulse tube refrigerator of the present invention comprises: drive unit 100, this driver element 100 can make working gas produce and move back and forth; Frigorific unit 200, this frigorific unit 200 be by driver element 100 pumpings, and have the low temperature part that the thermodynamic cycle by reciprocating working gas in pulse tube 210 produces; And compression refrigeration formulation cooling device, this compression refrigeration formulation cooling device connects between the storage heater 240 of the piston-cylinder unit 110a of driver element 100 and frigorific unit 200, and the HTHP working gas of cooling pumping.
The structure of driver element 100 and frigorific unit 200 is identical with above-mentioned prior art, therefore omits the explanation to them, introduces the structure of compression refrigeration formulation cooling device below.
Compression refrigeration formulation cooling device comprises: an aftercooler 400, this aftercooler has aftercooler body unit 410, its upper surface cooperates with chassis P, to cover the bottom of second seal closure 250, its lower surface cooperates with the upper surface of upper frame 111, and this upper frame 111 has the piston-cylinder unit 110a of driver element 100; One inboard heat exchanger 420, this inboard heat exchanger 420 is a screen cloth shape, and is contained in the inboard of aftercooler body unit 410; One outside heat exchanger 430, this outside heat exchanger 430 is a hollow cylinder, and a plurality of cooling studs that are installed in the external peripheral surface of aftercooler body unit 410 are arranged; And an insulation 440, this insulation 440 covers the external peripheral surface of outside heat exchanger 430, thereby forms a specific enclosed area; One coolant hose 450, this coolant hose 450 passes insulation 440, and is communicated with the two ends of enclosed area S; One compressor 460, this compressor 460 is contained in the exit of refrigerant tube 450, and compression refrigerant gas; One condensing heat exchanger 470, this condensing heat exchanger 470 are contained on the refrigerant tube 450 of compressor back and as condenser; With a dilation 480, its end links to each other with condensing heat exchanger 470, and the inlet side with refrigerant tube 450 is communicated with the other end in the enclosed area.
More particularly, an end of refrigerant tube 450 passes insulation 440, and is communicated with the outlet of dilation 480, so that make refrigerant flow into enclosed area S through condensing heat exchanger 470 and dilation 480.
The other end of refrigerant tube 450 passes insulation 440, and is communicated with compressor 460, so that make the refrigerant with 430 heat exchange of outside heat exchanger be discharged to compressor 460 from enclosed area S.
Introduce the course of work of the present invention below, the present invention can discharge the heat of working gas and driver element by constitute compression refrigeration formulation aftercooler on light water cold mould additional heat exchanger structure.
Represent with same numeral with the parts that prior art repeats, and omission is to their explanation.
The course of work of first embodiment of the cooling device of pulse tube refrigerator of the present invention, same as the prior art.
That is to say, when CD-ROM drive motor 120 energising and driver (not shown) carry out linear reciprocal movement, the driving shaft 130 that cooperates with driver also carries out linear reciprocal movement, the piston 140 that cooperates with driving shaft 130 also carries out linear reciprocal movement in piston-cylinder unit 110a inside, therefore, pump the working gas of frigorific unit 200.
The working gas of pumping moves back and forth between the cool end heat exchanger 212 of pulse tube 210 and hot end heat exchanger 211, and sends the heat of cool end heat exchanger 212 to hot end heat exchanger 211, therefore forms the low temperature part at cool end heat exchanger 212 places.
When piston compresses, be transported to the compression work gas of frigorific unit 200 from piston-cylinder unit 110a, through aftercooler 300 time, be cooled, flow into again in the storage heater 240, and carry out heat exchange by storage heater 240, flow into then in the cool end heat exchanger 212 of pulse tube 210, store latent heat in this gas.
Working gas in the pulse tube 210 is when being transported to hot end heat exchanger 211 and phase controller 220, owing to flowing into, working gas is compressed, when piston 140 aspirates, working gas in the pulse tube 210 carries out adiabatic expansion when being transported to the cool end heat exchanger 212 of pulse tube 210, thereby forms the low temperature part.
Equally, the working gas of discharging from pulse tube 210 is heated through storage heater 240 time, but heat release through aftercooler 300 time, and flow among the piston-cylinder unit 110a.
Yet, in the cooling device of the pulse tube refrigerator of first embodiment of the invention, the heat of working gas sends the inboard heat exchanger 420 of screen cloth shape to, sends additional heat exchanger body unit 410 again to, and the heat that sends aftercooler body unit 410 to sends outside heat exchanger 430 again to.
The heat that sends outside heat exchanger 430 to passes through compressor 460, condenser 470 and dilation 480, and contacts with the low-temp low-pressure liquid refrigerant surface that flows into enclosed area S, therefore cools off by the evaporation of refrigerant.
In other words, outside heat exchanger 430 is formed at the external peripheral surface of additional heat exchanger body unit 410, specific enclosed area S is formed at the outer surface of outside heat exchanger 430, the refrigerant tube 450 of compression refrigeration formulation cooling device penetrates enclosed area S, refrigerant contacts with outside heat exchanger 430, therefore, aftercooler body unit 410 is cooled.
To introduce second embodiment of the cooling device of pulse tube refrigerator of the present invention below.
Represent with same numeral with the parts that first embodiment repeats, and omission is to their explanation.
As shown in Figure 4, in the cooling device of the pulse tube refrigerator of second embodiment of the invention, refrigerant tube 550 bendings are so that contact with the external peripheral surface of aftercooler body unit 410.
The refrigerant tube 550 of connection dilation 480 and compressor 460 curves a few around the external peripheral surface of aftercooler body unit 410, and insulation 540 is positioned at the circumferential part of the refrigerant tube 550 that curves a few.
To introduce the cooling device of the pulse tube refrigerator of third embodiment of the invention below.
Represent with same numeral with the parts that first embodiment repeats, and omission is to their explanation.
As shown in Figure 5, the cooling device of the pulse tube refrigerator of third embodiment of the invention comprises an aftercooler body unit 310, this aftercooler body unit 310 is a hollow cylinder, its upper surface cooperates with the base plate P that covers second seal closure, 250 bottoms, lower surface cooperates with the upper surface of upper frame 111, and this upper frame 111 comprises the piston-cylinder unit 110a of driver element 100.
One inboard heat exchanger 420 is a screen cloth shape, and is contained in additional heat exchanger body unit 410 inboards, and an insulation 440 covers the outer peripheral portion of this additional heat exchanger body unit 410.
Introduce the course of work of cooling device of the pulse tube refrigerator of third embodiment of the invention below.
Refrigerant is discharged from compressor 460, and through condenser 470 and dilation 480 time, be transformed into the refrigerant of low-temp low-pressure, refrigerant tube 650 passes insulation 640 and aftercooler body unit 610, so that make this working gas flow into aftercooler body unit 610, refrigerant tube 650 stretches in the inboard heat exchanger 620, therefore, the working gas in the aftercooler body unit 610 directly contacts with refrigerant tube 650.
Simultaneously, the cooling device of pulse tube refrigerator of the present invention, by utilizing aftercooler to constitute the cooling loop of a compression refrigeration formulation as evaporimeter, discharge the heat of working gas and driver element glibly thereby work as refrigerator external temperature Gao Shineng, thereby can increase the efficient of this refrigerator.
Like this, do not need extra bubble discharge pipe, do not need to add at any time cooling water yet.
As mentioned above, by will be connected between driver element and the frigorific unit and the aftercooler of cooling work gas and driver element as evaporimeter, the cooling device of pulse tube refrigerator of the present invention utilizes this aftercooler, compressor, condenser and dilation to constitute a compression refrigeration formulation cooling loop.
This device can simplified structure, and prevents that by release heat glibly the temperature of working gas from raising when the refrigerator external temperature is high, thereby can increase the efficient of this refrigerator.
, the present invention do not break away from spirit of the present invention and essential characteristic because can realizing in a variety of forms, therefore be to be understood that, if not otherwise specified, the aforementioned specification that is not limited to above-mentioned embodiment describes in detail, and its spirit and scope are limited by additional claims, therefore, various changes and modifications all will fall in the scope of claims, and its equivalent form of value also will be included in the scope of claims in other words.
Claims (4)
1. the cooling device of a pulse tube refrigerator comprises:
Driver element, this driver element produce working gas and move back and forth;
Frigorific unit, this frigorific unit comprises pulse tube, this pulse tube has the low temperature part by the reciprocating motion generation of the working gas that flows in driver element; And
Compression refrigeration formulation cooling element, this compression refrigeration formulation cooling element assigns to constitute cooling loop by means of connect and make the aftercooler as evaporimeter, compressor, condenser and the bulge that working gas flows through between driver element and frigorific unit, described compressor, condenser and dilation are positioned at the outside of aftercooler, and sequentially link to each other with the refrigerant tube that is communicated with aftercooler.
2. the cooling device of pulse tube refrigerator according to claim 1, wherein aftercooler comprises: an aftercooler body unit; One inboard heat exchanger, this inboard heat exchanger is loaded on aftercooler body unit inboard; One outside heat exchanger, this outside heat exchanger is loaded on the external peripheral surface of aftercooler body unit, and a plurality of cooling studs are arranged; And insulation, this insulation covers the periphery of outside heat exchanger, to form specific enclosed area, one end of refrigerant tube passes insulation and is communicated with the outlet of dilation, so that make the refrigerant that flows through dilation flow into this enclosed area, the other end of this refrigerant tube passes insulation and is communicated with compressor, thereby the refrigerant that has carried out heat exchange with outside heat exchanger is discharged into the compressor from this enclosed area.
3. the cooling device of pulse tube refrigerator according to claim 2, the refrigerant tube that wherein connects dilation and compressor curves at the outer surface place of aftercooler body unit, and insulation is positioned at the periphery that curves coolant hose for several times.
4. the cooling device of pulse tube refrigerator according to claim 1, wherein this aftercooler comprises: an aftercooler body unit; One inboard heat exchanger, this inboard heat exchanger is loaded on aftercooler body unit inboard; Insulation, this insulation covers the periphery of aftercooler body unit; And refrigerant tube, this refrigerant tube passes aftercooler body unit and insulation, and stretches into the inside of inboard heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00131683 CN1201127C (en) | 2000-09-15 | 2000-09-15 | Cooler of pulse tube refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00131683 CN1201127C (en) | 2000-09-15 | 2000-09-15 | Cooler of pulse tube refrigerator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1343860A CN1343860A (en) | 2002-04-10 |
| CN1201127C true CN1201127C (en) | 2005-05-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00131683 Expired - Fee Related CN1201127C (en) | 2000-09-15 | 2000-09-15 | Cooler of pulse tube refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1201127C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1610074A4 (en) * | 2003-03-28 | 2012-09-05 | Fujitsu Ltd | Cooler for low-temperature operating article |
| CN100572987C (en) * | 2005-04-14 | 2009-12-23 | 中国科学院理化技术研究所 | A kind of thermoacoustic driving pulse pipe refrigerating machine |
-
2000
- 2000-09-15 CN CN 00131683 patent/CN1201127C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1343860A (en) | 2002-04-10 |
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Granted publication date: 20050511 Termination date: 20091015 |