CN1764811A - Pulse tube refrigerating machine - Google Patents
Pulse tube refrigerating machine Download PDFInfo
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- CN1764811A CN1764811A CN200480008073.XA CN200480008073A CN1764811A CN 1764811 A CN1764811 A CN 1764811A CN 200480008073 A CN200480008073 A CN 200480008073A CN 1764811 A CN1764811 A CN 1764811A
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- pressure waveform
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- 239000003507 refrigerant Substances 0.000 claims abstract description 127
- 238000009413 insulation Methods 0.000 claims abstract description 74
- 238000001816 cooling Methods 0.000 claims abstract description 51
- 238000005057 refrigeration Methods 0.000 claims abstract description 27
- 230000000694 effects Effects 0.000 claims description 28
- 239000007789 gas Substances 0.000 description 114
- 230000006835 compression Effects 0.000 description 19
- 238000007906 compression Methods 0.000 description 19
- 229910052751 metal Inorganic materials 0.000 description 8
- 239000002184 metal Substances 0.000 description 8
- 239000000463 material Substances 0.000 description 5
- 238000012546 transfer Methods 0.000 description 4
- 239000002023 wood Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000003321 amplification Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 239000011232 storage material Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 229910001021 Ferroalloy Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
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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
- 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
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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
- F25B2309/1417—Pulse-tube cycles without any valves in gas supply and return lines
-
- 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
- F25B2309/1418—Pulse-tube cycles with valves in gas supply and return lines
-
- 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
- F25B2309/1423—Pulse tubes with basic schematic including an inertance tube
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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
- F25B9/10—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point with several cooling stages
-
- 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
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D19/00—Arrangement or mounting of refrigeration units with respect to devices or objects to be refrigerated, e.g. infrared detectors
- F25D19/006—Thermal coupling structure or interface
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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 provides a pulse tube refrigerating machine advantageous for increasing refrigeration capacity. The pulse tube refrigerating machine comprises a pressure waveform generating device (1) for producing a pressure waveform for a refrigerant gas, pulse tubes (14, 20) into which a refrigerant gas having the pressure waveform flows and whose one end is a lower temperature end and whose other end is a higher temperature end, cold storage units (8, 10) for pre-cooling the refrigerant gas flowing into the pulse tubes (14, 20), a pressure waveform phase control element which has a buffer tank (23) communicating with the higher temperature end of the pulse tube (20) and which controls the phase of the pressure waveform of the refrigerant gas for the purpose of refrigeration at the lower temperature end of the pulse tube (20), and a vacuum heat-insulation tank (24) having a vacuum heat-insulation chamber (24w) for receiving the pulse tube (20). The buffer tank (23) is disposed in the vacuum heat-insulation chamber (24w) of the vacuum heat-insulation tank (24).
Description
Technical field
The present invention relates to a kind of pulse tube refrigerating machine that produces ultralow temperature.
Background technology
As prior art, just like Fig. 8 (patent documentation: the pulse tube refrigerating machine Japanese patent laid-open 9-296963 communique).The structure of this pulse tube refrigerating machine comprises as shown in Figure 8: compressor 121; Low pressure supply valve 122,124,126; High voltage supply valve 123,125,127; The 1st pulse tube 107; The 2nd pulse tube 117; The 1st regenerator 103 and the 2nd regenerator 13.The 1st pulse tube 107 has temperature end 107H and low-temperature end 107L.117 of the 2nd pulse tubes at more close low temperature side have temperature end 117H and low-temperature end 117L.
According to this pulse tube refrigerating machine structure, the temperature end 117H of the 2nd pulse tube 117 is set in the room temperature part, is cooled off by air.Therefore, because the volume of the 2nd pulse tube 117 is bigger, the compression ratio that wants to improve refrigerant gas in the refrigerating circuit has the limit, and therefore, wanting to improve at the 2nd pulse tube 117 1 ends is the refrigerating capacity that low-temperature end produces, and the limit is also arranged.
And, according to this pulse tube refrigerating machine structure, owing to flow to the low-temperature end of the 2nd pulse tube 117 from the temperature end 117H of the 2nd pulse tube 117 more than or equal to the warm gas of room temperature, therefore, in this sense, improving the refrigerating capacity that the 2nd pulse tube 117 low-temperature end 117L produce, also is limited.
Simultaneously, as prior art, disclosed pulse tube refrigerating machine in the document (non-patent literature 1:Cryocoolers11, P189-198 Design and Test of the NIST/Lockheed Martin MinituaturePulse TubeFlight Cryoosooler) is arranged as shown in Figure 9.This pulse tube refrigerating machine comprises as shown in Figure 9: compressor 209, the 1 pulse tubes the 201, the 2nd pulse tube the 203, the 1st regenerator the 207, the 2nd regenerator 206 and throttle orifice 300,301,302.The 1st pulse tube 201 has temperature end 201H, low-temperature end 201L.The 2nd pulse tube 203 of more close low temperature side has temperature end 203H and low-temperature end 203L.
Structure according to this pulse tube refrigerating machine, the temperature end 203H of the 2nd pulse tube 203, be connected setting with the low-temperature end 201L of the 1st pulse tube 20. therefore, the temperature end 203H of the 2nd pulse tube 203 cools off by the refrigeration that the 1st pulse tube 201 produces, and the temperature end 203H of the 2nd pulse tube only is arranged on the low-temperature end 201L of the 1st pulse tube 201, even the gas compression ratio of refrigerant gas is big again, the low-temperature end 203L of the 2nd pulse tube 203 also can not get good refrigeration.
(patent documentation 1: Japanese patent laid-open 9-296963 communique)
(non-patent literature 1:Cryocoolers 11, P189-198 Design and Test of theNIST/Lockheed Martin Minituature Pulse Tube Flight Cryoosooler)
Summary of the invention
The present invention is the invention of implementing in view of above-mentioned actual conditions, and purpose provides a kind of pulse tube refrigerating machine that helps improving refrigerating capacity.
Among the present invention the, plant the pulse tube refrigerating machine of form, comprising: the pressure waveform generating means, it makes refrigerant gas produce pressure waveform; Pulse tube wherein flows into the refrigerant gas that possesses those shapes of pressure have the pressure waveform generating means to produce, and an end is low-temperature end, and the other end is a temperature end; Regenerator, it is arranged between pressure waveform generating means and the above-mentioned pulse tube, and the refrigerant gas that flows into pulse tube is carried out precooling; The pressure waveform phase controller, it possesses the baffle-box that is connected with the pulse tube temperature end, and the pressure waveform phase place to refrigerant gas is controlled, thereby produce refrigeration at above-mentioned pulse tube low-temperature end place: the vacuum heat-insulation groove, it possesses the vacuum heat-insulation chamber that holds pulse tube, and the feature of this pulse tube refrigerating machine is: it is indoor that baffle-box is arranged on the vacuum heat-insulation of vacuum heat-insulation groove.
According to the pulse tube refrigerating machine of the 1st kind of form among the present invention, it is indoor that baffle-box and pulse tube all are arranged on the vacuum heat-insulation of vacuum heat-insulation groove.Therefore, control the air heat and entered baffle-box.Can keep the refrigerant gas in the baffle-box to be in low-temperature condition thus.So can improve the compression ratio of refrigerant gas in the refrigerating circuit: increase the refrigerating capacity that the pulse tube low-temperature end produces, help improving the refrigerating capacity of pulse tube refrigerating machine.
According to the pulse tube refrigerating machine of the 1st kind of form among the present invention, when being provided with the 1st baffle-box and the 2nd baffle-box, can be arranged on the 2nd baffle-box of low temperature side in the vacuum heat-insulation groove.
According to various forms among the present invention, the pressure waveform generating means is used for producing the pressure waveform of refrigerant gas.For example, produce pressure waveform with compressor.Regenerator is set between pressure waveform generating means and the pulse tube, has the function that the refrigerant gas that flows to pulse tube is cooled off.Regenerator can use the bigger materials of thermal capacity such as metal to make.
According to various forms shown in the specification among the present invention, the vacuum heat-insulation chamber interior of vacuum heat-insulation groove remains high vacuum state, thereby obtains vacuum heat-insulation.Vacuum state under this situation can reach 10
-3Torr is following, and ( 133 * 1.0
-3Pa is following), better reaches 10
-4Torr is following, and ( 133 * 10
-4Pa is following).
(2) pulse tube refrigerating machine of the 2nd kind of form among the present invention, comprise: the pressure waveform generating means, it makes refrigerant gas produce pressure waveform: pulse tube, wherein flow into its that have that the pressure waveform generating means produces and be equipped with the refrigerant gas of pressure waveform, and an end is a low-temperature end, the other end is a temperature end: regenerator, it is arranged between pressure waveform generating means and the pulse tube, and the refrigerant gas that flows into above-mentioned pulse tube is carried out precooling: the pressure waveform phase controller, its have be connected with the pulse tube temperature end and its stream internal diameter less than the inertia tube of pulse tube internal diameter, reach the baffle-box that is connected with the pulse tube temperature end by inertia tube, and the pressure waveform phase place to refrigerant gas is controlled, thereby pulse tube low-temperature end place produces refrigeration; The vacuum heat-insulation groove, it possesses the vacuum heat-insulation chamber that holds above-mentioned pulse tube, and the feature of this pulse tube refrigerating machine is: it is indoor that inertia tube is arranged on the vacuum heat-insulation of vacuum heat-insulation groove.
According to the pulse tube refrigerating machine of the 2nd kind of form among the present invention, the refrigerant gas of pulse tube temperature end is through the stream internal diameter inertia tube less than the pulse tube internal diameter, and baffle-box is flowed into and flows out.At this moment, the pressure waveform phase place of refrigerant gas is adjusted, and the refrigerating capacity of pulse tube low-temperature end is maintained a good state.Inertia tube and baffle-box possess as the function of adjusting the pressure waveform phase controlling device that refrigerant gas phase place and pressure amplification uses.From having the functional point of view of adjusting the pressure refrigerant gas waveform phase, when the correspondence of considering with circuit, inertia tube will play the effect (producing the function of refrigerant gas phase difference) that is equivalent to inductor in the circuit.
According to the pulse tube refrigerating machine of the 2nd kind of form among the present invention, it is indoor that inertia tube and pulse tube all are configured in the vacuum heat-insulation of vacuum heat-insulation groove.Therefore, can control the air heat and enter inertia tube.Therefore, make the refrigerant gas that flows in the inertia tube keep low-temperature condition.Thereby can improve the refrigerant gas compression ratio in the refrigerating circuit, help increasing the refrigerating capacity that the pulse tube low-temperature end produces, improve the refrigerating capacity of pulse tube refrigerating machine.
If especially the refrigerant gas that flows in the inertia tube is a low temperature, so, the flow passage resistance force of waterproof of inertia tube is just little, and the gas viscosity loss that is flowing in the inertia tube is just little.Its result, the refrigerant gas phase place and the gas flow that flow to the pulse tube temperature end just keep good, thereby have increased refrigerating capacity.
According to the pulse tube refrigerating machine of the 2nd kind of form in the wood invention, the 1st inertia tube that is connected with the 1st baffle-box is being set and during with the 1st inertia tube that the 2nd baffle-box is connected, the 2nd inertia tube of low-temperature end can be configured in the vacuum heat-insulation groove.
(3) pulse tube refrigerating machine of the 3rd kind of form among the present invention, comprise: the pressure waveform generating means, it makes refrigerant gas produce pressure waveform: the 1st pulse tube, wherein flow into the refrigerant gas that possesses pressure waveform that has the pressure waveform generating means to produce, and an end is a low-temperature end, and the other end is a temperature end; The 2nd pulse tube, wherein flow into the refrigerant gas that possesses pressure waveform is arranged, and the one end is the low-temperature end that temperature is lower than the 1st pulse tube low-temperature end, the other end is a temperature end: regenerator, it is arranged between pressure waveform generating means and the 1st pulse tube and the 2nd pulse tube, the refrigerant gas that flows into the 1st pulse tube and I or the 2nd pulse tube is carried out precooling: the pressure waveform phase controller, have: be connected with the 1st pulse tube temperature end, and its stream internal diameter is less than the 1st inertia tube of the 1st pulse tube internal diameter; The 1st baffle-box that is connected with the 1st pulse tube temperature end by the 1st inertia tube; Be connected with the 2nd pulse tube temperature end, and its stream internal diameter is less than the 2nd inertia tube of the 2nd pulse tube internal diameter; The 2nd baffle-box that is connected with the 2nd pulse tube temperature end by the 2nd inertia tube; And, the pressure waveform phase place of refrigerant gas is controlled, thereby produced refrigeration; The vacuum heat-insulation groove, it possesses the vacuum heat-insulation chamber that holds the 2nd pulse tube at least, the feature of this pulse tube refrigerating machine is: be provided with and carry out thermo-contact with the 1st pulse tube low-temperature end and be used to the cooling device that the refrigerating effect from the 1st pulse tube low-temperature end cools off, and make cooling device and the 2nd inertia tube carry out thermo-contact.
According to the pulse tube refrigerating machine structure shown in the 3rd kind of form among the present invention, the temperature end refrigerant gas of pulse tube is through the inertia tube of runner internal diameter less than the pulse tube internal diameter, and baffle-box is flowed into and flows out.At this moment, the pressure refrigerant gas waveform phase is adjusted, and the refrigerating capacity of pulse tube low-temperature end is maintained a good state.Inertia tube and baffle-box possess the function as the pressure waveform phase controlling device of adjusting refrigerant gas phase place and pressure amplification.From having the functional point of view of adjusting the pressure refrigerant gas waveform phase, if consider and the correspondence of circuit that inertia tube will play the effect that is equivalent to inductor in the circuit.
And, be provided with the low-temperature end of the 1st pulse tube and carry out thermo-contact and cooling device by cooling off from the refrigeration of the 1st pulse tube low-temperature end.Therefore, cooling device is to rely on the refrigeration of the 1st pulse tube low-temperature end to be cooled off.
And, according to the pulse tube refrigerating machine of the 3rd kind of form among the present invention, because with cooling device and the 2nd inertia tube thermo-contact, the 2nd inertia tube relies on from the refrigeration of the 1st pulse tube low-temperature end and obtains cooling.Therefore, the refrigerant gas that flows in the inertia tube can remain on low-temperature condition, therefore can improve the refrigerant gas compression ratio in the refrigerating circuit, has increased the refrigerating capacity that produces at pulse tube low-temperature end place, thereby helps improving the refrigerating capacity of pulse tube refrigerating machine.
Especially when the refrigerant gas that flows in the inertia tube is in for low temperature, the flow passage resistance force of waterproof of inertia tube diminishes, and the gas viscosity loss of flowing in the inertia tube reduces, its result, refrigerant gas phase place and the gas flow that the pulse tube temperature end flows maintained a good state, thereby increased refrigerating capacity.
Cooling device preferably adopts the heat transfer property good metal to make.Such as cooling device can be made of metallic plate.The shape not specially provided for of metallic plate.For improving the cooling of inertia tube, can take to increase the thermocontact area between cooling device and inertia tube.
(4) pulse tube refrigerating machine of the 4th kind of form among the present invention comprises: the pressure waveform generating means, and it makes refrigerant gas produce pressure waveform; The 1st pulse tube wherein flows into its that have that the pressure waveform generating means produces and is equipped with the refrigerant gas of pressure waveform, and an end is low-temperature end, and the other end is a temperature end; The 2nd pulse tube, wherein flowing into has the refrigerant gas that possesses pressure waveform, and an end is the low-temperature end that temperature is lower than the 1st pulse tube low-temperature end, and the other end is a temperature end; Regenerator, it is arranged between pressure waveform generating means and the 2nd pulse tube and the 2nd pulse tube, and the refrigerant gas that flows into the 1st pulse tube and/or the 2nd pulse tube is carried out precooling; The pressure waveform phase controller comprises: be connected with the 1st pulse tube temperature end, and the stream internal diameter is less than the 1st inertia tube of the 1st pulse tube internal diameter; The 1st baffle-box that is connected with the 1st pulse tube temperature end by the 1st inertia tube; Be connected with the 2nd pulse tube temperature end, and its stream internal diameter is less than the 2nd inertia tube of the 2nd pulse tube internal diameter; The 2nd baffle-box that is connected with the 2nd pulse tube temperature end by the 2nd inertia tube, and the pressure waveform phase place of refrigerant gas controlled, thereby refrigeration produced; Vacuum heat-insulation is poor, it possesses the vacuum heat-insulation chamber that holds the 2nd pulse tube at least, the feature of this pulse tube refrigerating machine is: be provided with the 1st pulse tube low-temperature end and carry out thermo-contact, and be used to the cooling device that the refrigerating effect from the 1st pulse tube low-temperature end cools off, and make cooling device and the 2nd baffle-box carry out thermo-contact.
According to the pulse tube refrigerating machine of the 4th kind of form among the present invention, be provided with the low-temperature end of the 1st pulse tube and carry out thermo-contact, and the cooling device by cooling off from the refrigeration of the 1st pulse tube low-temperature end.Therefore, cooling device is to rely on the low-temperature end refrigeration of the 1st pulse tube to be cooled off.
And according to the pulse tube refrigerating machine of the 4th kind of form of the present invention, by cooling device and the 2nd baffle-box are carried out thermo-contact, the 2nd baffle-box relies on from the refrigeration of the 1st pulse tube low-temperature end and obtains cooling.Therefore, the refrigerant gas in the 2nd baffle-box can remain on low-temperature condition.Therefore, can improve refrigerant gas compression ratio in the refrigerating circuit, increase the refrigerating capacity that produces at pulse tube low-temperature end place, thereby help improving the refrigerating capacity of pulse tube refrigerating machine.
Cooling device is to rely on the 1st pulse tube low-temperature end to carry out thermo-contact, and be used to cool off from the refrigeration of the 1st pulse tube low-temperature end.Preferably adopt the metal (being generally aluminium alloy, copper alloy and ferroalloy) of good heat-transfer to make as cooling device.The shape of cooling device does not have particular determination, such as can use metallic plate.The shape of metallic plate does not have particular provisions yet.For improving cooling as far as possible, can do bigger as the thermocontact area between cooling device and the 2nd baffle-box for the 2nd baffle-box.
(5) pulse tube refrigerating machine of the 5th kind of form in the wood invention, comprise: the pressure waveform generating means, it makes refrigerant gas produce pressure waveform: the 1st pulse tube, wherein flow into the refrigerant gas that possesses pressure waveform that has the pressure waveform generating means to produce, and an end is a low-temperature end, and the other end is a temperature end; The 2nd pulse tube, wherein flowing into has the refrigerant gas that possesses pressure waveform, and an end is the low-temperature end that temperature is lower than the 1st pulse tube low-temperature end, and the other end is a temperature end; Regenerator, it is arranged between pressure waveform generating means and the 1st pulse tube and the 2nd pulse tube, and the refrigerant gas that flows into the 1st pulse tube and/or the 2nd pulse tube is carried out precooling; Those shape phase controllers of pressure comprise: be connected with the 1st pulse tube temperature end, and the stream internal diameter is less than the 1st inertia tube of the 1st pulse tube internal diameter; The 1st baffle-box that is connected with the 1st pulse tube temperature end by the 1st inertia tube; Be connected with the 2nd pulse tube temperature end, and its stream internal diameter is less than the 2nd inertia tube of the 2nd pulse tube internal diameter; The 2nd baffle-box that is connected with the 2nd pulse tube temperature end by the 2nd inertia tube, and, pressure waveform phase place to refrigerant gas is controlled, thereby generation refrigeration: vacuum heat-insulation groove, it possesses the vacuum heat-insulation chamber that holds the 2nd pulse tube at least, and the feature of this pulse tube refrigerating machine is: the 2nd inertia tube has at least a part and the low-temperature end of the 1st pulse tube to carry out thermo-contact.
According to the pulse tube refrigerating machine of the 5th kind of form among the present invention, the 2nd inertia tube and the 1st pulse tube low-temperature end are in the thermo-contact state.At this moment, the 2nd inertia tube is owing to the refrigeration that is subjected to from the 1st pulse tube low-temperature end, and at least a portion has been subjected to cooling.Like this, can make the refrigerant gas that flows in the 2nd inertia tube remain on low-temperature condition.Thereby can improve refrigerant gas compression ratio in the refrigerating circuit, increase the refrigerating capacity that produces at the 2nd pulse tube low-temperature end place, thereby help improving the refrigerating capacity of pulse tube refrigerating machine.
Especially the stream internal diameter of the 2nd inertia tube is smaller, compare when big with the 2nd inertia tube stream internal diameter, except that the refrigerant gas of the 2nd inertia tube outer wall one side flow, the refrigerant gas that flows at the 2nd inertia tube central part also can effectively obtain cooling, so can cool off effectively the refrigerant gas integral body that flows in the 2nd inertia tube.
According to the pulse tube refrigerating machine of the 5th form in the wood invention, for example, can turn to the 2nd inertia tube at the low-temperature end place of the 1st pulse tube spiral-shaped so that the mode of carrying out thermo-contact with the low-temperature end of the 1st pulse tube.
(effect of invention)
The present invention can provide a kind of pulse tube refrigerating machine that helps improving the refrigerating capacity of pulse tube low-temperature end.
Description of drawings
Fig. 1 is the pie graph of pulse tube refrigerating machine notion in expression the 1st embodiment.
Fig. 2 in expression the 1st embodiment between the 2nd inertia tube and the barricade by the pie graph that touches part.
Fig. 3 is the pie graph of pulse tube refrigerating machine notion in expression the 2nd embodiment.
Fig. 4 is the pie graph of contact condition between the 2nd baffle-box and the barricade in expression the 3rd embodiment.
Fig. 5 is the pie graph of the 2nd baffle-box periphery situation in expression the 4th embodiment.
Fig. 6 is the pie graph of the 2nd baffle-box periphery situation in expression the 5th embodiment.
Fig. 7 is wound on the state pie graph of the 1st baffle-box low-temperature end for the 2nd inertia tube in expression the 6th embodiment.
Fig. 8 is the pie graph of pulse tube refrigerating machine notion in the expression prior art.
Fig. 9 is the pie graph of pulse tube refrigerating machine notion in the expression prior art.
The specific embodiment
Following with reference to accompanying drawing, wooden working of an invention mode is illustrated.
(the 1st embodiment)
The 1st embodiment, as shown in the figure.In Fig. 1,1 is the line style driven compressor, and it can be used as a kind of pressure waveform generating means, can make the gaseous state refrigerant gas produce pressure waveform.In compressor 1, constituted compression unit 4 at the piston 2 of back and forth movement and the space between the piston 3.Compression unit 4 is communicated with an end 6a of radiator 6 by pipe arrangement 5, and the other end 6b of radiator 6 links to each other with the 1st regenerator 8 of having filled cool storage materials such as woven wire 7.On the low-temperature end 8b of the 1st regenerator 8, be provided with the tubular connecting elements 9 that joins with the 2nd regenerator 10.In the inside of the 2nd regenerator 10, be filled with the spherical cool storage material that possesses cool storage function 12 of lead or terres rares.The 2nd regenerator 10 remains on than under the lower temperature of the 1st regenerator 8.In attaching parts 9 inside, dispose channel member 11.Channel member 11 is connected with the 1st pulse tube 14 and the 2nd pulse tube 20, and wherein stream has towards the refrigerant gas of the 1st pulse tube 14 and towards the refrigerant gas of the 2nd pulse tube 20.
As shown in Figure 1, be on the outer wall at the periphery of above-mentioned attaching parts 9, be provided with an end 13a for the pipe arrangement 13 of cold-producing medium circulation.The other end 13b of pipe arrangement 13 is connected with the 1st heat exchanger 15.The 1st heat exchanger 15 is arranged on the low-temperature end 14L place of the 1st pulse tube 14.
The 1st pulse tube 14 is perpendicular long metal tubulation shape parts, and there is a hollow chamber that can allow refrigerant gas flow into its inside.The refrigerant gas that flows into has the pressure waveform that produces at compression unit 4 places.Here, the upper end of the 1st pulse tube 14 (other end) locates to be temperature end 14H, and the lower end of the 1st pulse tube 14 (end) is low-temperature end 14L.The purpose that low-temperature end 14L is contained in the below is in order to control the thermal convection current of refrigerant gas.
As shown in Figure 1, the temperature end 14H place of the 1st pulse tube 14 is connecting an end of the 1st radiator 16.The 1st radiator 16 is configured in than the also outer side of vacuum heat-insulation groove 24.The other end of the 1st radiator 16 with have an end 17a of metal system the 1st inertia tube 17 of elongated shape to be connected as the 1st communicating pipe and its.The 1st inertia tube 17 has the function that is equivalent to reactor in circuit.The internal diameter of the 1st inertia tube 17 is relatively less than the internal diameter of the 1st pulse tube 14 and the internal diameter of the 1st baffle-box 18.The other end 17b of the 1st inertia tube 17 is connected with the 1st separator tube 18.The 1st baffle-box 18 is provided with the storeroom 18W of a big volume.
Here the refrigerant gas of the 1st pulse tube 14 is travelled to and fro between the inside of the 1st baffle-box 18 through the 1st inertia tube 17, and the pressure waveform phase place and the pressure amplitude of refrigerant gas are adjusted.Therefore, the 1st inertia tube 17 and the 1st baffle-box 18 produce refrigerating effect for making at the low-temperature end 14L place of the 1st pulse tube 14, as pressure waveform phase controlling device, the phase place and the pressure waveform amplitude of pressure refrigerant gas waveform are controlled.The 1st inertia tube 17 and the 1st baffle-box 18 as shown in Figure 1, are configured in outside the vacuum heat-insulation groove 1.
As shown in Figure 1, the low-temperature end 10L of the 2nd regenerator 10 is through pipe arrangement 19, and the 2nd heat exchanger 30 that has cooling refrigeration gas function with utilizing heat exchange is connected.The 2nd heat exchanger 30 is arranged on the low-temperature end 20L (temperature is lower than the low-temperature end 14L of the 1st pulse tube 14 relatively) of the 2nd pulse tube 20.The 2nd pulse tube 20 is long tubular metal parts, and there is a perpendicular long hollow chamber its inside, and refrigerant gas is flowed into.Here, the length setting of the 2nd pulse tube 20 is for being shorter than the length of the 1st pulse tube 14 relatively.Simultaneously, the internal diameter of the 2nd pulse tube 20 is set at relative internal diameter less than the 1st pulse tube 14.Therefore, the volume settings of the 2nd pulse tube 20 is littler than the volume of the 1st pulse tube 14.The upper end of the 2nd pulse tube 20 is high temperature 20H, and the lower end of the 2nd pulse tube 20 is low temperature 20L.Low-temperature end 20L be in the below purpose be in order to control thermal convection current.
The temperature end 20H place of the 2nd pulse tube 20 is provided with the 2nd radiator 21 of each refrigerating function of tool.The 2nd radiator 21 is through having the ring flange 9b of conductivity of heat, with the cylindrical portions may 9a of contact component 9 from outside and carry out thermo-contact.As mentioned above, be provided with stream at the cylindrical portion 9a of contact component 9 inner face, stream has the refrigerant gas that is cooled off at the low-temperature end 14L place of the 1st pulse tube 14 in this stream.Therefore, the 2nd radiator 21 cools off by utilize the refrigerant gas that flows in the cylindrical portion 9a of contact component 9.
In other words, the temperature end 20H of the 2nd pulse tube 20 and the 2nd radiator 21 carry out thermo-contact, and rely on the 2nd radiator 21 to cool off.Its result, the temperature end 20H of the 2nd pulse tube 20 cools off with regard to the refrigerating effect that becomes to relying on the 1st pulse tube 14 low-temperature end 14L places to produce.Temperature end 20H by the 2nd radiator the 21, the 2nd pulse tube 20 has kept lower temperature, even under the identical situation of flow, also helps reducing the volume of the refrigerant gas of the 2nd pulse tube 20, has shortened the length of the 2nd pulse tube 20.Therefore, help improving the compression ratio of refrigerating circuit, the refrigerating capacity that the 2nd pulse tube 20 low-temperature end 20L are produced increases significantly than prior art.
According to present embodiment, as shown in Figure 1, be provided with barricade 25, the effect of performance cooling device.Barricade 25 is the metallic article of good thermal conduction, and as shown in Figure 1, because the 25m place, position of barricade 25 and the low-temperature end 14L of the 1st pulse tube 14 are in the thermo-contact state, therefore, barricade 25 is also cooled off and is in low-temperature condition.
On barricade 25, there is the radome 26 of a case shape to carry out thermo-contact with it as cooling device.Radome 26 is configured in the downside of barricade 25, and forms screened room 26W.Radome 26 is communicated with vacuum heat-insulation chamber 24W, and is therefore the same with vacuum heat-insulation chamber 24W, is in high vacuum state.
As shown in Figure 2, metal system the 2nd inertia tube 22 by elongated pipe arrangement constitutes keeps the thermo-contact state with barricade 25.The 2nd inertia tube 22 is as playing the effect that the 2nd baffle-box 23 is connected with the 2nd pulse tube 20 the 2nd communicating pipe, and has the function of restraining gas flow, and internal diameter is relatively less than the internal diameter of the 2nd pulse tube 20 and the internal diameter of the 2nd baffle-box 23 altogether.
In addition, as shown in Figure 1, the top 23u of the 2nd baffle-box 23 and barricade 5 keep thermo-contact.The 2nd baffle-box 23 is configured in the below of barricade 25.The 2nd baffle-box 23 has a case chamber 23W that volume is bigger, and the volume of this case chamber 23 is relatively less than the volume of the case chamber 18W of the 1st baffle-box 18.As mentioned above, as the barricade 25 of cooling device, also to carry out thermo-contact with the 2nd baffle-box 23.Like this, the 2nd baffle-box 23 cools off by the plate 25 that demasks, and makes the refrigerant gas in the 2nd baffle-box 23 remain on low-temperature condition.
Here, the refrigerant gas of the 2nd pulse tube 20 flows the 2nd baffle-box 23 inner coming and going through the 2nd inertia tube 22, and the pressure waveform phase place and the pressure amplitude of the refrigerant gas that provides to the 2nd pulse tube 20 are adjusted.Therefore, the 2nd inertia tube 22 and the 2nd baffle-box 23 produce refrigerating effect at the low-temperature end 20L place of the 2nd pulse tube 20, so, played the function of the pressure waveform phase controlling device of control pressure refrigerant gas waveform phase.
According to the mode of this enforcement, as shown in Figure 1, the 2nd baffle-box 23 is not to be disposed in the air, but is configured in the vacuum insulation chamber 24W of vacuum insulation groove 24.Particularly the 2nd baffle-box is arranged in the screened room 26W of the radome 2 in the vacuum insulation groove 24.Radome 2 plays the effect of control from the thermal-radiating conduction in outside as radiation proof heat conductor spare.
Therefore, make the refrigerant gas in the 2nd baffle-box 23 can remain on lower state of temperature, the vacuum insulation chamber 24W of vacuum insulation groove 24 is inner to be connected with vavuum pump 24X, remains on high vacuum state (10
-4The following 133X10 of Torr
-4Pa is following).Vacuum insulation groove 24 excellent heat insulating performances.
The wall body of vacuum insulation groove 24 is made by the material that suppresses heat conducting high thermal insulation.Radome 26 is arranged on vacuum insulation groove 24 inside and is used for controlling heat radiation from the outside, and it is to be that base material is made by the good metal of heat conductivity.
According to present embodiment, as shown in Figure 1, in the screened room 26W of radome 26, except that the 2nd baffle-box 23, also accommodated the 2nd regenerator the 10, the 2nd pulse tube 20 and the 2nd radiator 21, carry out thermo-contact to prevent these devices and air.The 1st pulse tube 14 as shown in Figure 1, is in the outside of radome 26, and is housed within the vacuum insulation groove 24.
The piston 4 and 5 of compressor 1 is oppositely arranged during use, does back and forth movement with certain frequency.Like this, the refrigerant gas in the compression unit 4 of compressor 1 with identical frequency compression, and is produced the pressure waveform of refrigerant gas (being generally nitrogen (He)) by piston 4,5.When setting the size of each parts, guarantee to make the resonant frequency of gas pressure in the 1st baffle-box 18 and the 1st inertia tube 17 and the resonant frequency of the 2nd buffer 23 and the 2nd inertia tube 25 interior gas pressures, substantially be consistent with the operating frequency of piston 5,6, like this, the low-temperature end 20L place of the low-temperature end 14L of the 1st pulse tube 14 and the 2nd pulse tube 20 obtains to be similar to the pressure waveform of Stirling circulation, can obtain to be similar to desirable refrigerating capacity at the low-temperature end 20L place of the 2nd pulse tube 20.
In addition, according to different operational situations, can obtain the refrigerating effect that temperature is 40～100K on the low-temperature end 14L of the 1st pulse tube 14, the low-temperature end 20L place of the 2nd pulse tube 20 can obtain the refrigerating effect that temperature is 10～30K.Its sky insulated tank 24 and radome 26 have the effect of prevention from the conduction heat of vacuum heat-insulation groove 24.The temperature of the screened room 26W of radome 26 generally can reach about 40～100K.Radome 26 has the photothermal effect that prevents from vacuum insulation groove 24.
According to present embodiment, rely on the refrigeration that the 1st pulse tube 14 low-temperature end 14L places produce and reach the refrigerant gas that obtains low temperature, in the internal flow of contact component 9 cylindrical portion 9a.Its result, contact component 9 is cooled, and the temperature that feasible and contact member 9 carries out the 2nd radiator 21 of thermo-contact also becomes low temperature.Then, keep the temperature at temperature end 20H place of the 2nd pulse tube 20 of thermo-contacts also to become low temperature, reach almost close temperature with the 1st pulse tube 14 low-temperature end 14L places with the 2nd radiator 21.
According to present embodiment, owing to rely on the effect of the 2nd radiator 21, make the temperature of the 2nd pulse tube 20 temperature end 20H remain on low-temperature condition, thereby help reducing the gas volume of refrigerant gas in the 2nd pulse tube 20.The length of the 2nd pulse tube 20 is shorter than the 2nd pulse tube length in the prior art relatively simultaneously, helps realizing the miniaturization of the 2nd pulse tube 20.
As mentioned above, according to present embodiment, the 2nd baffle-box 23 is configured in the vacuum insulation chamber 24W of vacuum insulation groove 24, therefore, can suppress the thermo-contact of the 2nd baffle-box 23 and air, make the 2nd baffle-box 23 remain on low-temperature condition always, help improving the refrigerating capacity of pulse tube refrigerating machine.
Particularly as shown in fig. 1, be positioned at vacuum insulation groove 24, and be provided with the 2nd baffle-box 23 in the screened room 26W of the good radome 26 of insulating properties.Like this, can make the 2nd baffle-box 23 temperature be in lower.Thereby the refrigerant gas in the 2nd baffle-box 23 also can remain on low-temperature condition.
Therefore,, help further improving the compression ratio of refrigerant gas in the refrigerating circuit, increase the refrigerating capacity that the 2nd pulse tube 20 low-temperature end 20L places produce, also help improving the refrigerating capacity of pulse tube refrigerating machine according to present embodiment.
Also have, according to present embodiment, the 2nd inertia tube 22 that carries out the inflow and outflow of refrigerant gas for the 2nd baffle-box 23 is co-located in the vacuum heat-insulation chamber 24W of vacuum heat-insulation groove 24 with the 2nd baffle-box 23.So not only can suppress the thermo-contact between the 2nd baffle-box 23 and air, and, also can suppress the thermo-contact between the 2nd inertia tube 22 and air, the 2nd inertia tube 22 can be in always be low-temperature condition.Therefore,, will help further improving the compression ratio of refrigerant gas in the refrigerating circuit, thereby increase the refrigerating capacity that the 2nd pulse tube 20 low-temperature end 20L places produce according to present embodiment.
Especially the 2nd inertia tube 22, as shown in Figure 1, owing to be arranged in the screened room 26W of vacuum heat-insulation groove 24 radomes 26, can make the temperature of the 2nd inertia tube 22 remain on lower state, thereby the temperature of refrigerant gas can remain on lower state in the 2nd inertia tube 22.Therefore,, will help further improving the compression ratio of refrigerant gas in the refrigerating circuit, thereby increase the refrigerating capacity that the 2nd pulse tube 20 low-temperature end 20L places produce according to present embodiment.
Have again,,, cooled off, and the 2nd inertia tube 22 and barricade 25 are in the state of thermo-contact at the low-temperature end 14L place of the 1st pulse tube 14 as the barricade 25 of cooling device according to present embodiment.Therefore, the refrigerating effect that the 2nd inertia tube 22 utilizes the 1st pulse tube 14 low-temperature end 14L places to produce obtains cooling by barricade 25.Especially because the stream internal diameter of the 2nd inertia tube 22 is less, the refrigerant gas of the not only refrigerant gas of the 2nd inertia tube 22 exterior circumferential one side flow, and the 2nd inertia tube 22 central shaft cores one side flow also can obtain cooling by barricade 25 effects.Therefore, the whole refrigerant gas that flows in the 2nd inertia tube 22 all can be cooled off effectively.
That is to say,,, can cool off effectively, therefore, can make the refrigerant gas that flows in the 2nd inertia tube 22 be in more low temperature state refrigerant gas in the 2nd inertia tube 22 owing to rely on the cooling effect of cooling device barricade 25 according to present embodiment.Like this, will help further improving the compression ratio of refrigerant gas in the refrigerating circuit, thereby make the temperature end 20H of the 2nd pulse tube 20 further be in low-temperature condition, further improve the refrigerating capacity that the 2nd pulse tube 20 low-temperature end 20L places produce.
Also have, because the refrigerant gas that flows in the 2nd inertia tube 22 can remain on lower state of temperature, thereby the flow path resistance of the 2nd inertia tube 22 diminishes, and the gas viscosity loss of flowing in the 2nd inertia tube 22 is minimized.Its result can make the refrigerant gas phase place and the gas flow that flow among the 2nd pulse tube 20 temperature end 20H remain on kilter, thereby increase refrigerating capacity.
As mentioned above, if the refrigerant gas in the 2nd inertia tube 22 can obtain cooling in low temperature one side, so, the peak value of the gas pressure resonant frequency in the 2nd baffle-box 23 and the 2nd inertia tube 25 can be clear.This will help further improving the refrigerating capacity that the 2nd pulse tube 20 and low-temperature end 20L place produce.
And according to present embodiment, the 2nd baffle-box 23 is in the thermo-contact state with barricade 25.And be in the thermal communication state with the low-temperature end 14L of the 1st pulse tube 14 again as the barricade 25 of cooling device.Therefore, the 2nd baffle-box 23 is by barricade 25, utilizes the refrigeration of the 1st pulse tube 14 low-temperature end 14L places generation and cooled off.Therefore, can make the refrigerant gas of the 2nd baffle-box 23 keep lower temperature.This will help further improving the compression ratio of refrigerant gas in the refrigerating circuit, thereby make the 2nd pulse tube 20 temperature end 20H further be in low-temperature condition, further improve the refrigerating capacity that the 2nd pulse tube 20 low-temperature end 20L places produce.
As above-mentioned explanation, according to present embodiment, help improving the compression ratio of refrigerant gas in the refrigerating circuit, the volume that makes the 2nd pulse tube 20 is relatively less than the 2nd pulse tube volume in the prior art.So just shortened the length of the 2nd pulse tube 20.Help suppressing the vibration of the 2nd pulse tube 20, make pulse tube refrigerating machine be suitable under vibration environment, using.
According to above-mentioned embodiment, as shown in Figure 1, the 2nd radiator 21 that is arranged at the 2nd pulse tube 20 temperature end 20H places carries out thermo-contact with contact component 9, but is not limited thereto, and also can make the 2nd radiator 21 directly carry out thermo-contact with the 1st pulse tube 14 low-temperature end 14L.
Though above-mentioned embodiment is the example that is applicable to the secondary pulse tube refrigerating machine, be not limited thereto, also applicable to the pulse tube refrigerating machine more than three grades.
(the 2nd embodiment)
Fig. 3 has shown the 2nd embodiment.The 2nd embodiment is the mode of texturing of the 1st embodiment.It is identical that the 2nd embodiment and the 1st embodiment are constructed basically, and serve the same role effect.On total position, added total symbol.Only its part emphasis different with the 1st embodiment is illustrated below.Promptly between the 1st heat exchanger 15 and pipe arrangement 13 of the 1st embodiment, be provided with a secondary regenerator 40.And the temperature end place that is set to secondary regenerator 40 as barricade 25 contacts of cooling device.Like this.According to the 2nd embodiment, the cryogenic temperature that the 1st pulse tube 14 low-temperature end 14L produce can reach very low, and the temperature of the 2nd pulse tube 20 temperature end 20H can be than the applicable pattern under the taller situation of the temperature of the 1st pulse tube 14 low-temperature end 14L.
(the 3rd embodiment)
Fig. 4 represents the 3rd embodiment.The 3rd embodiment is the mode of texturing of the 1st embodiment.It is identical that the 3rd embodiment and the 1st embodiment are constructed basically, and play essentially identical action effect.On shared position, added shared symbol.Only the part emphasis different with the 1st embodiment is illustrated below.Promptly as shown in Figure 4, the 2nd baffle-box 23 carries out thermo-contact with barricade 25 as cooling device, and by barricade 25, utilizes the refrigeration of the 1st pulse tube 14 low-temperature end 14L places generation and is cooled off.Like this, can make the refrigerant gas of the 2nd baffle-box 23 remain on lower temperature.As shown in Figure 4, barricade 25 has with the outside wall surface of the 2nd baffle-box 23 and carries out thermo-contact facing to 23 bendings of the 2nd baffle-box, and the ring flange 25r of the usefulness that can promote to conduct heat.The ring flange 25r that promotes heat transfer usefulness be for increase and the 2nd baffle-box 23 between contact portion (heat transfer area), to improve the cooling of refrigerant gas in the 2nd baffle-box 23.
(the 4th embodiment)
Fig. 5 represents the 4th embodiment.The 4th embodiment is the mode of texturing of the 1st embodiment.The 4th embodiment the 1st embodiment is constructed identical basically, and plays essentially identical action effect.On total position, added total symbol.Only its part emphasis different with the 1st embodiment is illustrated below.Though that is: the overwhelming majority of the 2nd baffle-box 23 is configured in the vacuum heat-insulation chamber 24W of vacuum heat-insulation groove 24, have only the part (upper end) of the 2nd baffle-box 23, as shown in Figure 5, expose 24 China and foreign countries from the vacuum heat-insulation groove.But in the 2nd baffle-box 23, the good heat-barrier material 23m of heat-proof quality is disposed in all dividing of exposing outside from vacuum heat-insulation groove 24.Heat-barrier material 23m can suppress the intensification of refrigerant gas in the 2nd baffle-box.
(the 5th embodiment)
Fig. 6 represents the 5th embodiment, and the 5th embodiment is the mode of texturing of the 1st embodiment.The 6th embodiment construct identically basically with the 1st embodiment, and play essentially identical action effect.On total position, added total symbol.Only its part emphasis different with the 1st embodiment is illustrated below.Though that is: the 2nd baffle-box 23 is arranged in the vacuum heat-insulation chamber 24W of vacuum heat-insulation groove 24, have only tubular portion 23X outstanding from the 2nd baffle-box 23, expose 24 China and foreign countries from the vacuum heat-insulation groove.As required, can be installed in the measuring instrument 23K such as sensor that use for physical quantitys such as the pressure that detects refrigerant gas in the 2nd baffle-box 23, temperature among the tubular portion 23X.Because measuring instrument 23K to exposing outside, helps the maintenance and repair of measuring instrument 23K from vacuum heat-insulation groove 24.
(the 6th embodiment)
Fig. 7 represents the 6th embodiment.The 6th embodiment is the mode of texturing of the 1st embodiment.It is identical that the structure of the 6th embodiment and the 1st embodiment are constructed basically, and play essentially identical action effect.On total position, added total symbol.Only its part emphasis different with the 1st embodiment is illustrated below.That is: when the length of the 2nd inertia tube 22 is longer,, the whole or part of the 2nd inertia tube 22 is wound on the low-temperature end 14L of the 1st pulse tube 14 along its circumferencial direction for effectively utilizing the 2nd inertia tube 22.The refrigeration of utilizing the 1st pulse tube 14 low-temperature end 14L places (cooling device) to produce is effectively cooled off the 2nd inertia tube 22.The 2nd inertia tube 22 is arranged in the 24W of vacuum heat-insulation chamber.
(other) can summarize following technological thought from foregoing.
Note 1: in claim item 1, the feature of pulse tube refrigerating machine is: above-mentioned baffle-box, is connected with the temperature end of above-mentioned pulse tube relatively less than the inertia tube of pulse tube internal diameter by the stream internal diameter.
Note 2: in note 1, the feature of pulse tube refrigerating machine is: it is indoor that above-mentioned inertia tube is arranged on the vacuum heat-insulation of vacuum heat-insulation groove.
Note 3: in note 1 or note 2, the feature of pulse tube refrigerating machine is: above-mentioned pulse tube comprises: the 1st pulse tube, and wherein flowing into has the refrigerant gas that possesses pressure waveform, and an end is low-temperature end, and the other end is a temperature end; The 2nd pulse tube, wherein flowing into has the refrigerant gas that possesses pressure waveform, and wherein an end is the low-temperature end that temperature is lower than above-mentioned the 1st pulse tube low-temperature end, and the other end is a temperature end.
Note 4: in note 3, the feature of pulse tube refrigerating machine is: above-mentioned regenerator is arranged between above-mentioned pressure waveform generating means and above-mentioned the 1st pulse tube and above-mentioned the 2nd pulse tube, and the refrigerant gas that flows into above-mentioned the 1st pulse tube and/or above-mentioned the 2nd pulse tube is carried out precooling treatment.
Note 5: in note 3, the feature of pulse tube refrigerating machine is: above-mentioned pressure waveform phase controlling device has: the 1st inertia tube, and it is connected with above-mentioned the 1st pulse tube temperature end, and its stream internal diameter is less than above-mentioned the 1st pulse tube internal diameter; The 1st baffle-box, it is connected with above-mentioned the 1st pulse tube temperature end by above-mentioned the 1st inertia tube; The 2nd inertia tube, it is connected with above-mentioned the 2nd pulse tube temperature end, and its stream internal diameter is less than the 2nd pulse tube internal diameter; The 2nd baffle-box of low temperature one side, it is connected with above-mentioned the 2nd pulse tube temperature end by above-mentioned the 2nd inertia tube.
Note 7: in note 5 or note 6, the feature of pulse tube refrigerating machine is: be provided with above-mentioned the 1st pulse tube low-temperature end and carry out thermo-contact, and be used to the cooling device that the refrigerating effect from above-mentioned the 1st pulse tube low-temperature end cools off, and make above-mentioned cooling device and above-mentioned the 2nd baffle-box carry out thermo-contact.
Note 8: in note 5～7, the feature of pulse tube refrigerating machine is; Above-mentioned the 2nd inertia tube at least a portion and above-mentioned the 1st pulse tube low-temperature end are carried out thermo-contact.
Utilizability on the industry
The present invention can be used in the pulse tube refrigerating machine.
Claims (5)
1. pulse tube refrigerating machine comprises:
The pressure waveform generating means, it makes refrigerant gas produce pressure waveform;
Pulse tube, wherein flowing into the refrigerant gas that possesses pressure waveform and the end that have above-mentioned pressure waveform generating means to produce is that low-temperature end, the other end are temperature end;
Regenerator, it is arranged between above-mentioned pressure waveform generating means and the above-mentioned pulse tube and to the refrigerant gas that flows into above-mentioned pulse tube and carries out precooling;
The pressure waveform phase controller, it possesses the baffle-box that is connected with above-mentioned pulse tube temperature end and the pressure waveform phase place of refrigerant gas is controlled, thereby produces refrigeration at above-mentioned pulse tube low-temperature end place;
The vacuum heat-insulation groove, it possesses the vacuum heat-insulation chamber that holds above-mentioned pulse tube,
The feature of this pulse tube refrigerating machine is:
It is indoor that above-mentioned baffle-box is arranged on the above-mentioned vacuum heat-insulation of above-mentioned vacuum heat-insulation groove.
2. a pulse tube refrigerating machine comprises;
The pressure waveform generating means, it makes refrigerant gas produce pressure waveform;
Pulse tube, wherein flowing into the refrigerant gas that possesses pressure waveform and the end that have above-mentioned pressure waveform generating means to produce is that low-temperature end, the other end are temperature end.
Regenerator, it is arranged between above-mentioned pressure waveform generating means and the above-mentioned pulse tube and to the refrigerant gas that flows into above-mentioned pulse tube and carries out precooling;
The pressure waveform phase controller, its have be connected with above-mentioned pulse tube temperature end and its stream internal diameter less than the inertia tube of above-mentioned pulse tube internal diameter and the baffle-box that is connected with above-mentioned pulse tube temperature end by above-mentioned inertia tube, and its pressure waveform phase place to refrigerant gas is controlled, thereby produces refrigeration at above-mentioned pulse tube low-temperature end place;
The vacuum heat-insulation groove, it possesses the vacuum heat-insulation chamber that holds above-mentioned pulse tube,
The feature of this pulse tube refrigerating machine is:
It is indoor that above-mentioned inertia tube is arranged on the above-mentioned vacuum heat-insulation of above-mentioned vacuum heat-insulation groove.
3. pulse tube refrigerating machine comprises:
The pressure waveform generating means, it makes refrigerant gas produce pressure waveform;
The 1st pulse tube, wherein flowing into the refrigerant gas that possesses pressure waveform and the end that have above-mentioned pressure waveform generating means to produce is that low-temperature end, the other end are temperature end;
The 2nd pulse tube flows into wherein that the refrigerant gas and the end that possess pressure waveform are arranged is that low-temperature end, the other end that temperature is lower than above-mentioned the 1st pulse tube low-temperature end is temperature end;
Regenerator, it is arranged between above-mentioned pressure waveform generating means and above-mentioned the 1st pulse tube and above-mentioned the 2nd pulse tube and to the refrigerant gas that flows into above-mentioned the 1st pulse tube and/or above-mentioned the 2nd pulse tube and carries out precooling;
The pressure waveform phase controller has: be connected with above-mentioned the 1st pulse tube temperature end and its stream internal diameter less than the 1st inertia tube of above-mentioned the 1st pulse tube internal diameter; The 1st baffle-box that is connected with above-mentioned the 1st pulse tube temperature end by above-mentioned the 1st inertia tube; Be connected with above-mentioned the 2nd pulse tube temperature end and its stream internal diameter less than the 2nd inertia tube of above-mentioned the 2nd pulse tube internal diameter; The 2nd baffle-box that is connected with above-mentioned the 2nd pulse tube temperature end by above-mentioned the 2nd inertia tube, and, the pressure waveform phase place of refrigerant gas is controlled, thereby produced refrigeration;
The vacuum heat-insulation groove, it possesses the vacuum heat-insulation chamber that holds above-mentioned the 2nd pulse tube at least,
The feature of this pulse tube refrigerating machine is:
Be provided with cooling device, and make above-mentioned cooling device and above-mentioned the 2nd inertia tube carry out thermo-contact, this cooling device and above-mentioned the 1st pulse tube low-temperature end are carried out thermo-contact, and are used to cool off from the refrigerating effect of above-mentioned the 1st pulse tube low-temperature end.
4. pulse tube refrigerating machine comprises:
The pressure waveform generating means, it makes refrigerant gas produce pressure waveform;
The 1st pulse tube, wherein flowing into the refrigerant gas that possesses pressure waveform and the end that have above-mentioned pressure waveform generating means to produce is that low-temperature end, the other end are temperature end;
The 2nd pulse tube flows into wherein that the refrigerant gas and the end that possess pressure waveform are arranged is that low low-temperature end, the other end of doing above-mentioned the 1st pulse tube low-temperature end of temperature is temperature end;
Regenerator, it is arranged between above-mentioned pressure waveform generating means and above-mentioned the 1st pulse tube and above-mentioned the 2nd pulse tube and to the refrigerant gas that flows into above-mentioned the 1st pulse tube and/or above-mentioned the 2nd pulse tube and carries out precooling;
The pressure waveform phase controller comprises: be connected with above-mentioned the 1st pulse tube temperature end and its stream internal diameter less than the 1st inertia tube of above-mentioned the 1st pulse tube internal diameter; The 1st baffle-box that is connected with above-mentioned the 1st pulse tube temperature end by above-mentioned the 1st inertia tube; Be connected with above-mentioned the 2nd pulse tube temperature end and its stream internal diameter less than the 2nd inertia tube of above-mentioned the 2nd pulse tube internal diameter; The 2nd baffle-box that is connected with above-mentioned the 2nd pulse tube temperature end by above-mentioned the 2nd inertia tube, and, the pressure waveform phase place of refrigerant gas is controlled, thereby produced refrigeration;
The vacuum heat-insulation groove, it possesses the vacuum heat-insulation chamber that holds above-mentioned the 2nd pulse tube at least,
The feature of this pulse tube refrigerating machine is:
Be provided with cooling device, and make above-mentioned cooling device and above-mentioned the 2nd baffle-box carry out thermo-contact, this cooling device and above-mentioned the 1st pulse tube low-temperature end are carried out thermo-contact, and are used to cool off from the refrigerating effect of above-mentioned the 1st pulse tube low-temperature end.
5. pulse tube refrigerating machine comprises:
The pressure waveform generating means, it makes refrigerant gas produce pressure waveform;
The 1st pulse tube, wherein flowing into the refrigerant gas that possesses pressure waveform and the end that have above-mentioned pressure waveform generating means to produce is that low-temperature end, the other end are temperature end;
The 2nd pulse tube flows into wherein that the refrigerant gas and the end that possess pressure waveform are arranged is that low-temperature end, the other end that temperature is lower than the 1st pulse tube low-temperature end is temperature end;
Regenerator, it is arranged between above-mentioned pressure waveform generating means and above-mentioned the 1st pulse tube and above-mentioned the 2nd pulse tube and to the refrigerant gas that flows into above-mentioned the 1st pulse tube and above-mentioned the 2nd pulse tube and carries out precooling;
The pressure waveform phase controller has: be connected with above-mentioned the 1st pulse tube temperature end and its stream internal diameter less than the 1st inertia tube of above-mentioned the 1st pulse tube internal diameter; The 1st baffle-box that is connected with above-mentioned the 1st pulse tube temperature end by above-mentioned the 1st inertia tube; Be connected with above-mentioned the 2nd pulse tube temperature end and its stream internal diameter less than the 2nd inertia tube of above-mentioned the 2nd pulse tube internal diameter; The 2nd baffle-box that is connected with above-mentioned the 2nd pulse tube temperature end by above-mentioned the 2nd inertia tube, and, the pressure waveform phase place of refrigerant gas is controlled, thereby produced refrigeration;
The vacuum heat-insulation groove, it possesses the vacuum heat-insulation chamber that holds above-mentioned the 2nd pulse tube at least,
The feature of this pulse tube refrigerating machine is:
Above-mentioned the 2nd inertia tube has at least a part and the low-temperature end of above-mentioned the 1st pulse tube to carry out thermo-contact.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP085650/2003 | 2003-03-26 | ||
| JP2003085650A JP3974869B2 (en) | 2003-03-26 | 2003-03-26 | Pulse tube refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1764811A true CN1764811A (en) | 2006-04-26 |
Family
ID=33095035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200480008073.XA Pending CN1764811A (en) | 2003-03-26 | 2004-03-25 | Pulse tube refrigerating machine |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20070000257A1 (en) |
| JP (1) | JP3974869B2 (en) |
| CN (1) | CN1764811A (en) |
| WO (1) | WO2004085935A1 (en) |
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| CN101963410B (en) * | 2009-07-24 | 2012-08-15 | 中国科学院理化技术研究所 | Multi-path bypass type pulse tube refrigerating system |
| CN103322720A (en) * | 2012-03-21 | 2013-09-25 | 住友重机械工业株式会社 | Pulse tube refrigerator and method of operating thereof |
| CN105402922A (en) * | 2014-09-10 | 2016-03-16 | 住友重机械工业株式会社 | Stirling type pulsed tube refrigerator |
| CN106288481A (en) * | 2016-09-22 | 2017-01-04 | 浙江大学 | A kind of Cryo Refrigerator being connected compressor and regenerator by transfer tube |
| CN109140814A (en) * | 2016-11-16 | 2019-01-04 | 浙江大学 | Compressor is coupled with cryocooler cold head with π type acoustical match component and refrigeration machine |
| CN110402356A (en) * | 2017-03-13 | 2019-11-01 | 住友重机械工业株式会社 | The revolution valve cell of ultra-low temperature refrigerating device and ultra-low temperature refrigerating device |
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| JP4718957B2 (en) * | 2005-09-29 | 2011-07-06 | 株式会社東芝 | Pulse tube refrigerator |
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| JPH03194364A (en) * | 1989-12-25 | 1991-08-26 | Sanyo Electric Co Ltd | Cryostatic freezer |
| US5336232A (en) * | 1991-03-14 | 1994-08-09 | United States Surgical Corporation | Approximating apparatus for surgical jaw structure and method of using the same |
| JP3152757B2 (en) * | 1992-09-18 | 2001-04-03 | 株式会社東芝 | Pulse tube refrigerator |
| JP3605878B2 (en) * | 1995-03-31 | 2004-12-22 | アイシン精機株式会社 | Pulse tube refrigerator |
| JPH08313095A (en) * | 1995-05-16 | 1996-11-29 | Toshiba Corp | Cold storage type refrigerating machine |
| JP2880154B1 (en) * | 1998-03-31 | 1999-04-05 | 株式会社移動体通信先端技術研究所 | Pulse tube refrigerator |
| JP2977809B1 (en) * | 1998-08-05 | 1999-11-15 | 株式会社移動体通信先端技術研究所 | Refrigeration equipment |
| JP2002526188A (en) * | 1998-09-24 | 2002-08-20 | スーパー ディメンション リミテッド | System and method for determining the position of a catheter during a medical procedure inside the body |
| IL126333A0 (en) * | 1998-09-24 | 1999-05-09 | Super Dimension Ltd | System and method of recording and displaying in context of an image a location of at least one point-of-interest in body during an intra-body medical procedure |
| JP3333776B2 (en) * | 2000-07-28 | 2002-10-15 | エルジー電子株式会社 | Pulsating tube refrigerator cooling system |
| IL138683A0 (en) * | 2000-09-25 | 2001-10-31 | Vital Medical Ltd | Apparatus and method for monitoring tissue vitality parameters |
| US20060235279A1 (en) * | 2005-03-18 | 2006-10-19 | Hawkes David T | Less invasive access port system and method for using the same |
-
2003
- 2003-03-26 JP JP2003085650A patent/JP3974869B2/en not_active Expired - Fee Related
-
2004
- 2004-03-25 WO PCT/JP2004/004226 patent/WO2004085935A1/en active Application Filing
- 2004-03-25 CN CN200480008073.XA patent/CN1764811A/en active Pending
- 2004-03-25 US US10/550,526 patent/US20070000257A1/en not_active Abandoned
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101963410B (en) * | 2009-07-24 | 2012-08-15 | 中国科学院理化技术研究所 | Multi-path bypass type pulse tube refrigerating system |
| CN103322720A (en) * | 2012-03-21 | 2013-09-25 | 住友重机械工业株式会社 | Pulse tube refrigerator and method of operating thereof |
| CN105402922A (en) * | 2014-09-10 | 2016-03-16 | 住友重机械工业株式会社 | Stirling type pulsed tube refrigerator |
| CN105402922B (en) * | 2014-09-10 | 2018-07-17 | 住友重机械工业株式会社 | Stirling Type Pulse Tube Cryocooler |
| CN106288481A (en) * | 2016-09-22 | 2017-01-04 | 浙江大学 | A kind of Cryo Refrigerator being connected compressor and regenerator by transfer tube |
| CN109140814A (en) * | 2016-11-16 | 2019-01-04 | 浙江大学 | Compressor is coupled with cryocooler cold head with π type acoustical match component and refrigeration machine |
| CN109140814B (en) * | 2016-11-16 | 2019-09-17 | 浙江大学 | Compressor is coupled with cryocooler cold head with π type acoustical match component and refrigeration machine |
| CN110402356A (en) * | 2017-03-13 | 2019-11-01 | 住友重机械工业株式会社 | The revolution valve cell of ultra-low temperature refrigerating device and ultra-low temperature refrigerating device |
| CN110402356B (en) * | 2017-03-13 | 2021-04-09 | 住友重机械工业株式会社 | Cryogenic refrigerator and rotary valve unit for cryogenic refrigerator |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3974869B2 (en) | 2007-09-12 |
| JP2004293891A (en) | 2004-10-21 |
| US20070000257A1 (en) | 2007-01-04 |
| WO2004085935A1 (en) | 2004-10-07 |
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