CN1083970C - Reversible vessel refrigerator driven by conventional gas refrigerator - Google Patents
Reversible vessel refrigerator driven by conventional gas refrigerator Download PDFInfo
- Publication number
- CN1083970C CN1083970C CN 95100157 CN95100157A CN1083970C CN 1083970 C CN1083970 C CN 1083970C CN 95100157 CN95100157 CN 95100157 CN 95100157 A CN95100157 A CN 95100157A CN 1083970 C CN1083970 C CN 1083970C
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- China
- Prior art keywords
- refrigerator
- refrigeration
- reversible
- refrigeration machine
- prime
- 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
- 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
- F25B2309/1406—Pulse-tube cycles with pulse tube in co-axial or concentric 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
- F25B2309/1408—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
- 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
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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 belongs to the field of refrigeration and cryogenic technology, and relates to a reversible pulse tube refrigerator of which a succeeding stage is actuated by a preceding stage which a conventional gas refrigerator (such as a C-M or a Stirling refrigerator, etc.) serves as. A gas distribution piston of a pulse tube refrigeration section is connected to an expansion piston of a preceding stage refrigerator to realize the reversible pulse tube refrigeration process while aided by the movement of the expansion piston, and the hot end of a pulse tube refrigeration heat-regenerator is communicated with a cold cavity of the preceding stage, so that the mixing refrigeration process in which the two stages are connected in series with each other is formed. Integrated with the advantages of both of the conventional gas refrigerator and a pulse tube refrigerator, the reversible pulse tube refrigerator has high reliability, long service life, simple and compact structure and high efficiency.
Description
The invention belongs to refrigeration and cryogenic technique field.
Vascular refrigerator is a kind of novel Regenerative Gas Refrigeration Machine, and it can be the low-temperature receiver that infrared remote sensing remote measurement, military night vision system, high-temperature superconductor SQUID device, low-temperature solid electronics device etc. provide high reliability.Cryogenic temperature can be from the liquid helium temperature to 100K.
The pulse tube refrigeration method is utilized the air-flow of pressure cycle variation to vibrate in the pipe of a low heat conductivity and is finished process of refrigerastion, and it has saved the cold chamber moving component in the conventional philip refrigerator, has advantages such as simple in structure, that running is reliable, the life-span is long.Usually the aperture vascular refrigerator is made up of pressure wave generator, cooler, regenerator, vascular, cool end heat exchanger, aperture and air reservoir, and they link successively, have constituted the closed system of refrigeration machine.Weak point is that its refrigerating capacity and efficient are lower slightly.Utility model patent No.92208622.2 has proposed the bidirection air intake reversible vessel refrigerator, adopts a gas distribution piston to substitute the effect of aperture and air reservoir, makes refrigeration machine efficient improve, and compact conformation.Conventional Gas Refrigerator comprises G-M refrigeration machine, sterlin refrigerator and Sol literary composition refrigeration machine etc.Present existing conventional twin-stage G-M or sterlin refrigerator cryogenic temperature can reach below the 20K, even liquid helium temperature.Be example with twin-stage G-M refrigeration machine below, Fig. 1 is its structural representation.1 is respectively the high and low pressure valve among the figure, communicates with the pressure oscillation source, by alternately connecting the high and low pressure source of the gas, provides pressure oscillation.The 2nd, the hot chamber of refrigeration machine; The 3rd, first order regenerator, its cool storage material is put into expansion piston, makes compact conformation; The 4th, the cold chamber of the first order (cool end heat exchanger), after air communication is crossed first order regenerator, part swell refrigeration in cold chamber; The 5th, second level regenerator, another part air-flow by first order regenerator enters wherein; The 6th, cold chamber, the second level, the air-flow that flows through second level regenerator forms the lowest refrigerating temperature of refrigeration machine at this swell refrigeration.The decompressor of twin-stage Stirling part is also identical with Fig. 1 in addition.As seen the shortcoming of twin-stage conventional gas refrigerator is that cold junction has decompressor, and reliability and life-span are lower, and complex structure, and difficulty of processing and expense are higher.
The objective of the invention is the advantage in conjunction with conventional gas refrigerator and vascular refrigerator, a kind of multi-stage refrigerating machine that can be operated in the profound hypothermia district is provided, it not only has advantages such as reliability height, life-span length, and simple in structure, compact, the efficient height.
The object of the present invention is achieved like this, on the expansion piston of original G-M or sterlin refrigerator, add the preceding paragraph piston, it is placed in the hot junction of vascular refrigerator, to substitute the effect of aperture and air reservoir, finishes the coupling to vascular hot junction gas flow rate and pressure phase.The cold chamber UNICOM of the regenerator of pulse tube refrigeration and prime.Constituted the two-stage series connection process of refrigerastion like this, prime is the conventional gas process of refrigerastion, back level shows for reversible vessel process of refrigerastion prior theory analysis result and experimental result: the freeze characteristics of motion characteristics of motion lucky and the conventional gas refrigerator expansion piston of required gas distribution piston of reversible vessel is very approaching, both series systems as above can be realized the course of work of two-stage well, realize profound hypothermia district refrigeration.
Adopt the present invention, the work of profound hypothermia district be the reversible vessel refrigerating part, thereby, two-stage refrigeration machine simple in structure, reliability height, life-span are long.Utilized the expansion piston in vascular hot junction, realized the reversible process in vascular hot junction, compared with existing vascular technology that refrigerating capacity is big, efficient is high.
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is the structural representation of twin-stage G-M refrigeration machine.
Fig. 2 is a structure principle chart of the present invention.
Fig. 3 is a vascular coaxial arrangement embodiment of the present invention.
Fig. 4 is an another embodiment of the present invention.
The prime conventional gas refrigerator only provides cold junction decompressor part among Fig. 2, and it can be G-M machine or Stirling-electric hybrid etc.1 is the expansion piston of prime conventional gas refrigerator among the figure, and cool storage material is filled out therein, has constituted the regenerator of prime again; The 2nd, the cold chamber of prime; The 3rd, the gas distribution piston of pulse tube refrigeration; The 4th, gas distribution piston chamber, the 5th, vascular; The 6th, cool end heat exchanger; The 7th, the regenerator of pulse tube refrigeration.
In Fig. 2, first order refrigeration is finished by conventional refrigeration machine, and gas freezes in cold chamber 2 through regenerator.Gas distribution piston 3 connects together with expansion piston 1, and like this, gas distribution piston has the identical characteristics of motion with expansion piston.The scavenging volume of gas distribution piston is determined according to the volume of vascular and the size of pressure ratio.The gas distribution piston chamber directly with the hot junction UNICOM of vascular, finish regulating action to vascular hot junction gas flow rate and pressure phase, it also has the effect of pressure ratio in the increase vascular simultaneously.In the enforcement, between cold chamber 2 and the gas distribution piston chamber good movable sealing should be arranged, to reduce gas leakage between the two.The cold chamber of the hot junction of the regenerator 7 of pulse tube refrigeration and prime 2 UNICOMs, the cold junction of regenerator 7 is by cool end heat exchanger 6 and the vascular layout that takes the shape of the letter U that fuses.So constituted second level reversible vessel process of refrigerastion.
The reversible vessel refrigerating part is according to coaxial form arrangement among Fig. 3, and its connectivity scenario is identical with Fig. 2 in fact, and just vascular 5 is put into the middle part of regenerator 7.This kind arrangement form compact conformation, practicality is stronger.
In another embodiment shown in Figure 4, the prime refrigeration machine is identical with Fig. 2 with being connected of reversible vessel hot junction part.The reversible vessel refrigerating part has adopted the multi-channel shunt scheme.Vascular and regenerator respectively are divided into two sections that diameter does not wait, and the middle part adopts bypass pipe and restricting element 8 to be communicated with.
In the present invention, be example with Fig. 2 embodiment, the conventional refrigeration machine of prime can be the two-stage refrigeration machine also, 2 can be the cold chamber, the second level of two-stage refrigeration machine among Fig. 2.For technical skilled people, the present invention is done various corrections also belong to scope of the present invention.
Claims (5)
1. the reversible vessel refrigerator that drives of a conventional gas, level reversible vessel refrigeration formed the multi-stage refrigerating machine of working in the profound hypothermia district after the conventional refrigeration machine of serving as reasons was done front wheel driving, the reversible vessel refrigerating part is by gas distribution piston, the gas distribution piston chamber, vascular, cool end heat exchanger and regenerator are formed, it is characterized in that: the gas distribution piston of reversible vessel refrigerating part links to each other with the expansion piston of prime refrigeration machine, gas distribution piston is identical with the movement locus of prime refrigeration machine, the regenerator of pulse tube refrigeration links to each other with the cold chamber of prime refrigeration machine, and the conventional refrigeration machine of prime is connected with back level reversible vessel refrigeration.
2. the reversible vessel refrigerator that drives by the described conventional gas of claim 1 is characterized in that, the conventional refrigeration machine of described prime is G-M refrigeration machine, sterlin refrigerator or Sol literary composition refrigeration machine.
3. the reversible vessel refrigerator that drives by the described conventional gas of claim 1 is characterized in that, the vascular of reversible vessel refrigeration and the arrangement of regenerator are U-shaped or coaxial shape.
4. the reversible vessel refrigerator that drives by the described conventional gas of claim 1 is characterized in that, the conventional refrigeration machine of described prime is the two-stage refrigeration machine.
5. the reversible vessel refrigerator that drives by the described conventional gas of claim 1 is characterized in that, described reversible vessel refrigeration refrigerating part adopts the multichannel air inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95100157 CN1083970C (en) | 1995-01-24 | 1995-01-24 | Reversible vessel refrigerator driven by conventional gas refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95100157 CN1083970C (en) | 1995-01-24 | 1995-01-24 | Reversible vessel refrigerator driven by conventional gas refrigerator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1127876A CN1127876A (en) | 1996-07-31 |
| CN1083970C true CN1083970C (en) | 2002-05-01 |
Family
ID=5073281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95100157 Expired - Fee Related CN1083970C (en) | 1995-01-24 | 1995-01-24 | Reversible vessel refrigerator driven by conventional gas refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1083970C (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108800644B (en) * | 2018-05-09 | 2020-04-03 | 上海理工大学 | Frame and pulse tube type free piston Stirling refrigerator |
| CN108518883B (en) * | 2018-05-09 | 2020-08-07 | 江苏热声机电科技有限公司 | Pulse tube type free piston Stirling refrigerator |
| CN108800643B (en) * | 2018-05-09 | 2019-12-31 | 上海理工大学 | Pulse tube type free piston Stirling refrigerator and refrigeration method |
| CN108826729B (en) * | 2018-05-09 | 2019-12-31 | 上海理工大学 | Expansion machine unit and pulse tube type free piston Stirling refrigerator |
| CN108797702B (en) * | 2018-05-09 | 2020-06-09 | 上海理工大学 | Solar air water taking device |
| CN108826730B (en) * | 2018-05-09 | 2020-04-03 | 上海理工大学 | Frame and pulse tube type free piston Stirling refrigerator |
| CN108626921B (en) * | 2018-05-09 | 2019-12-31 | 上海理工大学 | Expansion machine unit and pulse tube type free piston Stirling refrigerator |
| CN108413641B (en) * | 2018-05-09 | 2020-04-03 | 上海理工大学 | Frame and pulse tube type free piston Stirling refrigerator |
| CN108759147B (en) * | 2018-05-09 | 2020-09-29 | 上海理工大学 | Wine cabinet adopting pulse tube type free piston Stirling refrigerator |
| CN108626903B (en) * | 2018-05-09 | 2019-12-31 | 上海理工大学 | Pulse tube type free piston Stirling refrigerator |
| CN108375234B (en) * | 2018-05-09 | 2020-04-03 | 上海理工大学 | Expansion machine unit and pulse tube type free piston Stirling refrigerator |
| CN108800642B (en) * | 2018-05-09 | 2019-12-31 | 上海理工大学 | Pulse tube type free piston Stirling refrigerator |
-
1995
- 1995-01-24 CN CN 95100157 patent/CN1083970C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1127876A (en) | 1996-07-31 |
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| C14 | Grant of patent or utility model | ||
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