CN101865554A - Multipurpose pulse tube system - Google Patents
Multipurpose pulse tube system Download PDFInfo
- Publication number
- CN101865554A CN101865554A CN200910082399A CN200910082399A CN101865554A CN 101865554 A CN101865554 A CN 101865554A CN 200910082399 A CN200910082399 A CN 200910082399A CN 200910082399 A CN200910082399 A CN 200910082399A CN 101865554 A CN101865554 A CN 101865554A
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- cylinder
- pulse tube
- piston
- heat
- tube system
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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
- F25B2309/1407—Pulse-tube cycles with pulse tube having in-line geometrical arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
- F25B2400/07—Details of compressors or related parts
- F25B2400/073—Linear compressors
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Thermotherapy And Cooling Therapy Devices (AREA)
Abstract
The invention provides a multipurpose pulse tube system which comprises a cooler (1), a heat regenerator (2), a heat exchanger (3), a pulse tube (4), a radiator (5), a cylinder (8) filled with a working medium, a piston (9), a spindle and a linear motor (11), wherein the cooler (1), the heat regenerator (2), the heat exchanger (3), the pulse tube (4) and the radiator (5) are sequentially connected through a fluid communication mode, the piston (9) is arranged in the cylinder (8) to separate the cylinder (8) into an expansion cylinder (7) and a compression cylinder (10), the expansion cylinder (7) and the compression cylinder (10) are respectively in fluid communication with the cooler (1) and the radiator (5), and additionally the linear motor (11) which is coaxially arranged with the piston (9). When the linear motor (11) drives the piston (9) to be in reciprocating move in the cylinder, the heat exchanger (3) absorbs the heat from the external, and the pulse tube system works as a pulse tube refrigerator; and the heat is input into the heat exchanger (3), the piston (9) moves in the cylinder in a reciprocating way to enable the working medium in the system to generate pressure waves which periodically vary, and then the pulse tube system works as a thermal compressor.
Description
Technical field
The present invention relates to vascular system, relate in particular to and a kind ofly not only can be used as vascular refrigerator work, but also can be used as the multipurpose pulse tube system of pulse type thermocompressor work.
Background technology
Existing vascular refrigerator is by the gas periodic compression of turnover vascular and the refrigerating plant that expansion obtains low temperature as a kind of novel refrigerating machine.Comparing (as the G-M refrigeration machine) with conventional philip refrigerator compares, its advantage is that low-temperature end does not have moving component and simple in structure, eliminated the wear phenomenon of encapsulant fully, have higher reliability, littler vibration, make the problem of thorough solution regenerating type low-temperature refrigerator poor reliability become possibility.This vascular refrigerator is widely used in fields such as meteorology, military affairs, space technology, low-temperature electronics device, cryogenic medicine, natural gas liquefactions.
In addition, thermocompressor is a kind of external combustion, closed cycle thermal compressor, and it produces power by when gases are heated, they expand, meet cold compression.This external-burning thermocompressor burns fuel continuously, working medium such as hydrogen (or helium) expanded by heating in the system, and pressure raises, and meets power pressure reduction in the cooling system, carries out such cyclic process repeatedly.
At present, also do not have a kind of vascular refrigerator that both can be used as, can be used as the vascular system of thermocompressor work yet.
Summary of the invention
Therefore, the purpose of this invention is to provide a kind of multipurpose pulse tube system, this system both can be used as vascular refrigerator work, also can be used as the work of pulse type thermocompressor.
Therefore, the invention provides a kind of multipurpose pulse tube system, it comprises cooler, regenerator, heat exchanger, vascular and the radiator that connects in turn with the fluid mode of communicating, this system also comprises the cylinder that working medium is housed, and the piston that is isolated into expansion cylinder and compression cylinder in this cylinder is set, this expansion cylinder is communicated with described cooler fluid by connecting pipe, and this compression cylinder is communicated with radiator fluid by connecting pipe; Also be provided with the linear electric motors of main shaft and described piston coaxial arrangement in this system.Wherein, when linear electric motors moved back and forth in cylinder with driven plunger, heat exchanger absorbed heat from the external world, and this vascular system is as vascular refrigerator work.At heat exchanger place input heat, the linear electric motors driven plunger moves back and forth in cylinder, makes intrasystem working medium produce periodically variable pressure wave, and this moment, this vascular system was as thermocompressor work.In addition, these linear electric motors also are provided with stroke limiting stop, are used for the reciprocating motion of control piston in cylinder.
In the present invention, be enclosed in intrasystem working medium and for example can be selected from helium, nitrogen, hydrogen, air and composition thereof any.Certainly, can expect also can selecting other suitable working medium for use according to real needs.
In addition, in the present invention, vascular can be arranged according to the arbitrary mode in straight line, U-shaped layout and the coaxial arrangement as required.Here, linear electric motors can be the electric and magnetic oscillation linear electric motors, also can adopt in composite secondary linear electric motors and the linear stepping motor any.
According to the present invention, when this system works as thermocompressor, also be provided with heater, with in the heat input system at the heat exchanger place.Here heater can use in for example liquid fuel, gaseous fuel, solid fuel, waste heat, solar energy, chemical reaction energy and the radioisotope power etc. any to heat.So long as can produce the heat of uniform temperature, this pulse type thermocompressor system just can work.In order to improve the energy utilization efficiency of system, also be provided with insulation material layer and/or radiation protective layer in the outside of heater.
In addition, in the present invention, radiator is fan-cooled radiator or water-cooling type radiator.Should be appreciated that and to adopt the radiating mode of any suitable form according to different needs.
Vascular system of the present invention has versatility, can not only be used for the refrigeration of wide temperature range as vascular refrigerator; The heat that can utilize the various energy to produce drives loaded work piece as thermocompressor in addition.This vascular system also has the advantage that system vibration is little, noise is low, exhaust emission is little.
Description of drawings
Below, describe embodiments of the invention in conjunction with the accompanying drawings in detail, wherein:
Fig. 1 is the structural representation according to the unified embodiment of vascular system of the present invention;
Structural representation when Fig. 2 is a vascular system shown in Figure 1 as thermocompressor.
The specific embodiment
Fig. 1 is the structural representation according to an embodiment of multipurpose pulse tube system of the present invention.As can be seen from the figure, this vascular system comprises cooler 1, regenerator 2, heat exchanger 3, vascular 4 and the radiator 5 that connects in turn with the fluid mode of communicating.This system comprises that also inside is equipped with the cylinder 8 of working medium, is provided with piston 9 and is isolated into expansion cylinder 7 and compression cylinder 10 two parts in cylinder 8, and expansion cylinder 7 and compression cylinder 10 are communicated with cooler 1 and radiator 5 fluids respectively by connecting pipe 6.
In above-mentioned multipurpose pulse tube system, also be provided with linear electric motors 11, the main shaft of linear electric motors and piston coaxial arrangement.In this embodiment, linear electric motors 11 are the electric and magnetic oscillation linear electric motors, but it will be appreciated by those skilled in the art that for example composite secondary linear electric motors, linear stepping motor etc. also allow other any suitable linear electric motors.In addition, linear electric motors 11 have the stroke limiting stop (not shown), by the control of the trip limiter, realize that piston is in the reciprocating motion of cylinder intercycle.
In the present invention, the regenerator 2 of use and vascular 4 all are devices that arrive commonly used in the low-temperature refrigeration technology.Regenerator 2 is made up of the porous media solid packing with high specific heat capacity and lower resistance coefficient, and filler can be for example stainless steel, a phosphor bronze etc. of fine metal mesh, compositions such as small metal ball or particle and magnetic material.Vascular 4 is a kind of blank pipes, and two ends are provided with heat exchanger, and by periodic adiabatic inflation and adiabatic degassing, ceaselessly alternation is mobile in pipe for gas, to realize refrigeration effect.
According to the present invention, when vascular system was worked as refrigeration machine, linear electric motors 11 driven plunger 9 moved back and forth in cylinder 8.Under the drive of motor, to the process that expansion cylinder 7 moves, working medium is successively by cooler 1, regenerator 2, heat exchanger 3, vascular 4, radiator 5 from compression cylinder 10 for piston 9.Though expansion cylinder and compression cylinder fluid are communicated with, because the gap between piston 9 and the cylinder wall is very little, working medium can be revealed to expansion cylinder 7 from compression cylinder 10 by this gap hardly.Piston 9 from compression cylinder when expansion cylinder moves, working medium pressurized and temperature raises.Therefore, in this process, to the external environment heat release, and a part of heat of the working medium of the regenerator 2 of flowing through is stored in this regenerator working medium by cooler 1 and radiator 5.When piston 9 from expansion cylinder 7 when compression cylinder 10 moves, promoting working medium gets back in the expansion cylinder 7 by radiator 5, vascular 4, heat exchanger 3, regenerator 2 and cooler successively, intrasystem working medium expands, temperature reduces, and heat exchanger 3 absorbs heat from the external world, when working medium is flowed through regenerator 2, from regenerator, absorb heat, be equivalent to regenerator and stored a part of cold, thereby flow in the process of heat exchanger 3 through regenerator 2 by cooler 1, to the working medium precooling in working medium.Therefore, the efficient that regenerator 2 can improve system is set.
Piston 9 moves back and forth one-period, intrasystem working medium is finished once circulation, and through repeatedly such circulation, the temperature at heat exchanger 3 places can reach very low, for example using helium as working medium, is that cryogenic temperature can reach below the 80K under the condition of 30Hz in 2Mpa, frequency.Such vascular refrigerator, the low temperature environment about can providing from the environment temperature to 80K is expected to be widely used in the refrigeration system from the air-conditioning warm area to 80K.In this case, vascular system is exported cold at heat exchanger 3 places to external environment.
As shown in Figure 2, when this vascular system was worked as thermocompressor, 3 places also were provided with heater 12 at heat exchanger.In system, import heat by 3 heating of heater 12 heat exchanging devices, at this moment, can be by the initial motion of linear electric motors 11 starting pistons, when piston 9 from compression cylinder 10 when expansion cylinder 7 moves, working medium is successively by cooler 1, regenerator 2, heat exchanger 3, vascular 4 and radiator 5, working medium absorbs heat from heat exchanger 3, and gas temperature raises, the corresponding rising of system's internal pressure; When piston 9 from expansion cylinder 7 when compression cylinder 10 moves, when working medium flows to the left from the right side of heat exchanger 3, in the external heat release in cooler 1 place, the temperature of working medium reduction system in, pressure also reduces, and finishes a circulation.In this cyclic process, form periodic pressure wave (being that high-low pressure changes) in the system, thereby utilize this height pressure reduction to drive the load that links to each other with output 13.
In the present invention, the working medium of encapsulation is gas in the cylinder 8, and for example any in helium, nitrogen, hydrogen, air and composition thereof is to be understood that according to concrete application and can selects other suitable working medium.In this embodiment, employed radiator 5 is to be fan-cooled radiator commonly used in the prior art, and the radiator of other suitable form also is feasible as water-cooling type radiator.
When multipurpose pulse tube system according to the present invention was worked as thermocompressor, the same with common external-combustion engine, wherein heater 12 can use liquid fuel such as diesel oil, gasoline etc.; Gaseous fuel such as natural gas, biogas, hydrogen and coal etc.; Solid fuel; Waste heat is used heat in the industrial process etc. for example; Solar energy; In chemical reaction energy and the radioisotope power any drives this vascular system as thermocompressor work.In addition, preferably be provided with insulation material layer and/or radiation protective layer, can stop the heat of heater to be dispersed in the external environment here better and go, thereby improve the energy utilization efficiency of system in the outside of heater 12.
The foregoing description only is to implementing the exemplary illustration of mode of the present invention.Will be understood by those skilled in the art that, in the spirit and scope that do not exceed the qualification of appended claim book, can adopt the various schemes that are different from the invention described above embodiment.The accompanying Claim book is intended to be used for limiting protection scope of the present invention, and is intended to be used for being encompassed in claim scope interior method and apparatus and equivalent thereof.
Claims (8)
1. multipurpose pulse tube system, it comprises cooler (1), regenerator (2), heat exchanger (3), vascular (4) and the radiator (5) that connects in turn with the fluid mode of communicating, this system also comprises the cylinder (8) that working medium is housed, and being arranged on the piston (9) that is isolated into expansion cylinder (7) and compression cylinder (10) in this cylinder (8), this expansion cylinder (7) and this compression cylinder (10) are communicated with described cooler (1) and radiator (5) fluid respectively; This system also is provided with the linear electric motors (11) of main shaft and described piston (9) coaxial arrangement; Wherein, when linear electric motors (11) drove this piston (9) and move back and forth in this cylinder, described heat exchanger (3) absorbed heat from the external world, and this vascular system is as vascular refrigerator work; Locate to import heat at this heat exchanger (3), piston (9) moves back and forth in cylinder, makes intrasystem working medium produce periodically variable pressure wave, and this moment, this vascular system was as thermocompressor work.
2. multipurpose pulse tube system according to claim 1 is characterized in that, described linear electric motors (11) have stroke limiting stop, is used to control the reciprocating motion of described piston (9) in described cylinder.
3. multipurpose pulse tube system according to claim 2 is characterized in that, described linear electric motors (11) are for being selected from electric and magnetic oscillation linear electric motors, composite secondary linear electric motors and the linear stepping motor any.
4. multipurpose pulse tube system according to claim 1 is characterized in that, when this system works as thermocompressor, locates also to be provided with heater (12) at described heat exchanger (3).
5. multipurpose pulse tube system according to claim 4, it is characterized in that described heater (12) can use in liquid fuel, gaseous fuel, solid fuel, waste heat, solar energy, chemical reaction energy and the radioisotope power any to heat.
6. multipurpose pulse tube system according to claim 4 is characterized in that, is provided with insulation material layer and/or radiation protective layer in the outside of described heater (12).
7. according to each described multipurpose pulse tube system in the claim 1 to 6, it is characterized in that described working medium is selected from any in helium, nitrogen, hydrogen, air and composition thereof.
8. multipurpose pulse tube system according to claim 7 is characterized in that, described vascular (4) can be arranged according to the arbitrary mode in straight line, U-shaped layout and the coaxial arrangement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910082399A CN101865554A (en) | 2009-04-15 | 2009-04-15 | Multipurpose pulse tube system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910082399A CN101865554A (en) | 2009-04-15 | 2009-04-15 | Multipurpose pulse tube system |
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| Publication Number | Publication Date |
|---|---|
| CN101865554A true CN101865554A (en) | 2010-10-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200910082399A Pending CN101865554A (en) | 2009-04-15 | 2009-04-15 | Multipurpose pulse tube system |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102297540A (en) * | 2011-07-12 | 2011-12-28 | 浙江大学 | Pulse tube cooler system using automobile vibration energy |
| WO2012130172A1 (en) * | 2011-04-01 | 2012-10-04 | 中科力函(深圳)热声技术有限公司 | Double-action single-stage traveling wave thermoacoustic system |
| CN103047789A (en) * | 2013-01-05 | 2013-04-17 | 中国科学院理化技术研究所 | Stirling type pulse tube refrigerator of phasing device with dynamic quality module |
| CN103759464A (en) * | 2014-02-20 | 2014-04-30 | 中国科学院理化技术研究所 | Loop type travelling wave thermoacoustic refrigerating system driven by linear compressor |
| CN106840728A (en) * | 2017-02-22 | 2017-06-13 | 中国科学院上海技术物理研究所 | A kind of device and evaluation method for independent assessment vascular cold finger performance |
| CN114233603A (en) * | 2021-11-23 | 2022-03-25 | 浙江大学 | Cryogenic fluid reciprocating compression device driven by thermoacoustic engine |
| CN114427982A (en) * | 2021-12-08 | 2022-05-03 | 兰州空间技术物理研究所 | Performance testing device for single-stage G-M refrigerator heat regenerator |
-
2009
- 2009-04-15 CN CN200910082399A patent/CN101865554A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012130172A1 (en) * | 2011-04-01 | 2012-10-04 | 中科力函(深圳)热声技术有限公司 | Double-action single-stage traveling wave thermoacoustic system |
| CN102297540A (en) * | 2011-07-12 | 2011-12-28 | 浙江大学 | Pulse tube cooler system using automobile vibration energy |
| CN102297540B (en) * | 2011-07-12 | 2013-01-09 | 浙江大学 | Pulse tube cooler system using automobile vibration energy |
| CN103047789A (en) * | 2013-01-05 | 2013-04-17 | 中国科学院理化技术研究所 | Stirling type pulse tube refrigerator of phasing device with dynamic quality module |
| CN103047789B (en) * | 2013-01-05 | 2014-11-12 | 中国科学院理化技术研究所 | Stirling type pulse tube refrigerator of phasing device with dynamic quality module |
| CN103759464A (en) * | 2014-02-20 | 2014-04-30 | 中国科学院理化技术研究所 | Loop type travelling wave thermoacoustic refrigerating system driven by linear compressor |
| CN103759464B (en) * | 2014-02-20 | 2016-05-18 | 中国科学院理化技术研究所 | The capable ripple thermoacoustic refrigeration system of loop type that a kind of linear compressor drives |
| CN106840728A (en) * | 2017-02-22 | 2017-06-13 | 中国科学院上海技术物理研究所 | A kind of device and evaluation method for independent assessment vascular cold finger performance |
| CN106840728B (en) * | 2017-02-22 | 2023-07-04 | 中国科学院上海技术物理研究所 | Device and method for independently evaluating vascular cold finger performance |
| CN114233603A (en) * | 2021-11-23 | 2022-03-25 | 浙江大学 | Cryogenic fluid reciprocating compression device driven by thermoacoustic engine |
| CN114427982A (en) * | 2021-12-08 | 2022-05-03 | 兰州空间技术物理研究所 | Performance testing device for single-stage G-M refrigerator heat regenerator |
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Open date: 20101020 |