CN206247682U - Liquid piston work(reclaiming type pulse tube cooling system - Google Patents
Liquid piston work(reclaiming type pulse tube cooling system Download PDFInfo
- Publication number
- CN206247682U CN206247682U CN201621320718.XU CN201621320718U CN206247682U CN 206247682 U CN206247682 U CN 206247682U CN 201621320718 U CN201621320718 U CN 201621320718U CN 206247682 U CN206247682 U CN 206247682U
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- CN
- China
- Prior art keywords
- liquid piston
- pulse tube
- cooling system
- heat exchanger
- phase modulation
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Abstract
The utility model discloses a kind of liquid piston work(reclaiming type pulse tube cooling system, it includes the pressure wave generator, indoor temperature end heat exchanger, regenerator, cool end heat exchanger, vascular, vascular hot-side heat exchanger and the phase modulation apparatus that are linked in sequence successively, wherein：Pipeline between the outlet of the phase modulation apparatus and vascular hot-side heat exchanger or pressure wave generator and indoor temperature end heat exchanger is connected, and liquid piston is provided with the phase modulation apparatus.In the utility model, by setting liquid piston in the phase modulation apparatus to pulse tube cooling system, the regulation to the phase of refrigeration system is not only realized, moreover it is possible to realize the recovery to work(.
Description
Technical field
The utility model is related to pulse tube refrigerating device.Work(recovery is carried out more particularly, to a kind of use liquid piston
Liquid piston work(reclaiming type pulse tube cooling system.
Background technology
Vascular refrigerator is invented by the Gifford and Longswoth in the U.S. earliest, and it is exchanged heat by regenerator, vascular, hot junction
The part such as device, cool end heat exchanger and phase modulation apparatus constitutes, because refrigeration machine moving component no at low temperature is so as to avoid
Sealing, abrasion under low temperature and the problems such as vibrate, so there is compact conformation, low, long-life is vibrated, in, sky
Between the aspect such as technology, superconducting electronics, infrared acquisition, Cryomedicine have a very wide range of applications prospect.
Although the tempting part of pulse tube refrigerating machine is the moving component-displacer which removes low-temperature space, its
Effective adjuster must be added to compensate the function of the displacer being eliminated, so that system becomes complicated, particularly adjusted
The presence of phase air reservoir so that the volume of system is larger.And phase modulation apparatus are improving the pass of the phase between pressure and volume flow rate
While being, a part of sound work(is also consumes, do not make full use of the sound work(into system, so being reclaimed for being provided without work(
For the vascular refrigerator of device, its cycle efficieny limit is TC/TH, less than the limit cycle effect of preferable Carnot kind of refrigeration cycle
Rate TC/(TH-TC)。
In recent years, pulse tube refrigerating machine quickly grows in liquid nitrogen temperature and below 10K warm areas.Wherein liquid nitrogen temperature is main
Developing direction is High cooling power Stirling Type Pulse Tube Cryocooler, and the main developing direction of below 10K warm areas is GM low frequency pulse tube systems
Refrigeration machine and multi-stage stirling type pulse tube refrigerating machine.High cooling power is obtained in liquid nitrogen temperature and obtain the extremely low temperature of below 10K
Degree, is required to improve the input power of pulse tube refrigerating machine, and the sound work(consumed in phase modulation apparatus is also obviously improved so that system
It is less efficient.The other low frequency pulse tube system refrigeration machine for below 10K, the phase modulation angle needed for it is also significantly improved, phase modulation system
System also faces the problem of phase modulation scarce capacity.So for subject matter, feasible side present in pulse tube refrigerating machine development
Method is to explore work(to reclaim phase modulation vascular refrigerator, can simultaneously solve the problems, such as that sound power consumption dissipates and phase modulation scarce capacity.
Existing work(is reclaimed in phase modulation vascular refrigerator, using the good capacitive reactance of absorber and induction reactance effect, substitution
Air reservoir and inertia tube in conventional vascular refrigeration machine, so as to reach refrigeration machine work needed for optimal phase shift amount, but the device without
Sound work(dissipates in phase modulation apparatus during method solves the problems, such as pulse tube, therefore efficiency of refrigerator is relatively low；Also reliable kinoplaszm amount mould
Block inertia, inertia tube or valve resistance etc. form the impedance boundary regulation of pressure oscillation phase-lead volume flow rate, increased tune
Phase ability, but still comprising the device such as Hole and air reservoir in system, system complex and is not completely eliminated the sound work(of phase modulation apparatus consumption；Also
Have and adjust phase between refrigerating device inner pressure wave and volume flow by the way that vascular is set into the inertance tube of 1/4 wavelength, save
It is original to be passively or actively phase modulation apparatus.But it requires inertance tube for 1/4 wavelength to the method, and the temperature of refrigeration machine, frequency
Rate and pressure etc. can produce influence to wavelength so that the invention is relatively difficult to achieve.
It is not enough based on more than, it is desirable to provide a kind of work(recovering effect is good, simple and compact for structure, phase modulation ability strong and can be dynamic
Adjust the pulse tube cooling system of the phase of pulse tube.
Utility model content
The purpose of this utility model is to provide a kind of liquid piston work(reclaiming type pulse tube cooling system, is filled by phase modulation
Liquid piston is provided with putting, the regulation and the recovery of work((for example, sound work() of phase simultaneously to refrigeration system is realized, while also
So that system architecture is more compact, convenient use and cooling system high efficiency.
To reach above-mentioned purpose, the utility model uses following technical proposals：
A kind of liquid piston work(reclaiming type pulse tube cooling system, it includes the pressure wave generator, the room that are linked in sequence successively
Warm end heat exchanger, regenerator, cool end heat exchanger, vascular, vascular hot-side heat exchanger and phase modulation apparatus, the outlet of the phase modulation apparatus
It is connected with the pipeline between vascular hot-side heat exchanger or pressure wave generator and indoor temperature end heat exchanger, liquid is provided with the phase modulation apparatus
Body piston.
Preferably, the liquid that the liquid piston is used is the one kind in room temperature liquid metal, mercury, water and alcohol.More
Preferably, the liquid that the liquid piston is used is room temperature liquid metal or mercury.For example, room temperature liquid metal can be closed for gallium indium
Gold, gallium-indium-tin alloy etc..The density of foregoing room temperature liquid metal or mercury is big, under same volume, the inertia that reciprocal concussion is produced
Power is also big, with reference to the compression-expansion effect to gas, can effectively adjust the phase in pulse tube cooling system and realize returning for work(
Receive；Meanwhile, these liquid will not be evaporated so as to dusty gas working medium；Additionally, the viscosity of these liquid is small, flow resistance also can phase
Being reduced to for answering is minimum.It is further preferable that the liquid that liquid piston is used is mercury.
Preferably, the phase modulation apparatus be in be provided with the U-tube of liquid piston, straight tube, helix tube and L-type pipe one
Kind.The phase modulation apparatus of the tubulose of this several shape are selected, the regulation of phase more can be effectively realized；It is further preferable that described
Phase modulation apparatus are the interior U-tube for being provided with liquid piston.Not only phase modulation effect is good and can effectively prevent work(for phase modulation apparatus now
Loss.
Preferably, the outlet in the phase modulation apparatus exchanges heat with vascular hot-side heat exchanger or pressure wave generator with indoor temperature end
The pipeline that pipeline between device is connected is provided with drag regulator.By the aperture for adjusting drag regulator, in that context it may be convenient to
The rigidity of phase modulation apparatus outlet side gas working medium is adjusted, so that the recovery of work(is optimal value with phase adjusted effect.Enter
One step ground, more preferred drag regulator may be selected from but be not limited to selected from the one kind in regulating valve, capillary and nozzle.
Pressure wave generator in the utility model can be alternatively radio-frequency generator for low frequency generator.More preferably press
Wave generator can be GM types low frequency generator, VM types low frequency generator, stirling-type radio-frequency generator and thermoacoustic type generator
In one kind.
Preferably, connected by inertance tube between the vascular hot-side heat exchanger and phase modulation apparatus, so as to further promotion
The regulation of phase；Connected by cold head connecting tube between cool end heat exchanger and pulse tube.
Preferably, the gas working medium that the refrigeration system is used is helium.
Preferably, when the liquid is water or ethanol, it is provided between gas working medium in refrigeration systems and water or ethanol
Isolation structure；Preferably, the isolation structure is membrane structure.
In the utility model, the preferred ground structure of refrigeration system is the one kind in linear pattern, U-shaped and coaxial type；It is described
Refrigeration system is single-stage pulse tube refrigeration system or twin-stage pulse tube cooling system.
The beneficial effects of the utility model are as follows：
Phase modulation is carried out by being provided with liquid piston in phase modulation apparatus in the utility model, high density liquid is taken full advantage of
Inertia force and the compression-expansion effect to gas that reciprocal concussion is produced, phase relation and recovery in regulation refrigeration system
Work(so that the efficiency of system is more efficient, compact, convenient use；Further, since using liquid piston phase modulation be not introduced into it is any its
His mechanical part, compared to other Active phasing modes for, the problems such as in the absence of abrasion, the refrigeration machine life-span is largely increased；
Additionally, the setting of liquid piston can also be prevented effectively from the Gedeon direct currents that bidirection air intake causes.
The inertia force produced when liquid is moved back and forth is taken full advantage of in the utility model, and liquid is to the loss journey of work(
Degree is low, so as to form liquid piston effectively reclaim work(；It not only can provide suitable phase relation for regenerator, also make
The limit refrigerating efficiency of the system of obtaining is promoted to the limit cycle efficiency of Carnot kind of refrigeration cycle.
The setting of liquid piston eliminates aperture-air reservoir, major diameter pipe-air reservoir, two-way in phase modulation apparatus in the utility model
The structures such as air inlet so that the more compact structure of pulse tube cooling system, convenient use, and the removal of bidirectional air intake structure is prevented effectively from
The influence of Gedeon direct currents.
For being adjusted in low frequency pulse tube system refrigeration machine and the small cold pulse tube refrigerating machine of below 40K warm areas in the utility model
Mutually not enough problem also all can solve.
Brief description of the drawings
Specific embodiment of the present utility model is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 has gone out the structure of the liquid piston work(reclaiming type pulse tube cooling system of the utility model embodiment 1.
A~d shows U-tube in the liquid piston work(reclaiming type pulse tube cooling system of the utility model embodiment 1 in Fig. 2
Interior liquid shakes process.
Fig. 3 shows the structure of the liquid piston work(reclaiming type pulse tube cooling system of the utility model embodiment 2.
Specific embodiment
In order to illustrate more clearly of the utility model, the utility model is done into one with reference to preferred embodiments and drawings
The explanation of step.Similar part is indicated with identical reference in accompanying drawing.It will be appreciated by those skilled in the art that below
Specifically described content is illustrative and be not restrictive, and should not limit protection domain of the present utility model with this.
Embodiment 1
The structure of the liquid piston work(reclaiming type pulse tube cooling system of the utility model embodiment 1 is shown such as Fig. 1：It is wrapped
The pressure wave generator 1 being linked in sequence successively is included, for example, VM types low frequency generator, indoor temperature end heat exchanger 2, regenerator 3, cold end
Heat exchanger 4, vascular 6, vascular hot-side heat exchanger 7 and phase modulation apparatus 9.Wherein, pressure wave generator 1 passes through connecting tube and indoor temperature end
Heat exchanger 2 is connected, and cool end heat exchanger 4 is connected by cold head connecting tube 5 with vascular 6, vascular hot-side heat exchanger 7 and phase modulation apparatus 9
The entrance of (U-tube equipped with liquid mercury) is connected by connecting line, and the outlet of phase modulation apparatus 9 is by pipeline and vascular hot junction
Heat exchanger 7 is connected, and pipeline is provided with drag regulator regulating valve 8.Gas working medium in pulse tube cooling system is helium.
The course of work of aforesaid liquid piston work-recovery type pulse tube refrigeration is as follows：Sent from pressure wave generator 1
Sound work(sequentially enters indoor temperature end heat exchanger 2, regenerator 3, cool end heat exchanger 4, vascular 6 and vascular hot-side heat exchanger 7, so as to cold
Cold is produced at the heat exchanger 4 of end.U is entered from the entrance of U-tube by connecting line from the sound work(out of vascular hot-side heat exchanger 7
In type pipe, under the driving of the pressure wave that sound work(is formed, mercury in U-tube it is U-shaped it is interior move reciprocatingly, form liquid and live
Plug.In one pressure period of wave, the concussion process schematic of liquid is as shown in a~d in Fig. 2：It is U-shaped with the increase of pressure wave
When the pressure of arrival end is by balance pressure rise to maximum pressure in pipe, entrance side (left side) liquid levels decline in U-tube, go out
Mouth side (right side) liquid levels are raised, and left and right liquid levels form height difference H 1 (a), while the gas working medium on the liquid level of right side
Helium is compressed, now work(in phase modulation apparatus with the compression energy of gas working medium in the gravitional force of liquid and right side U-tube
Storage；When dropping to average pressure by peak with left pressure, energy release (b) stored in U-tube, work(is recycled to arteries and veins
In pipe；As left pressure is when further dropping to minimum pressure, right side liquid level declines in U-tube, and left side liquid level rises, left
Right liquid level forms height difference H 2 (c), and now, the gas working medium expansion on the liquid level of right side continues to do work vascular；When pressure from
When minimum pressure rises to average pressure (d), the work(stored in vascular is released into U-tube.So as to complete a pressure wave week
Phase, realize the recovery of work(.Additionally, by the inertia mass of aforesaid liquid piston, can be to vascular outlet pressure ripple and quality stream
Phase be adjusted.Wherein, in the course of work of pulse tube cooling system, by controlling to adjust the aperture of valve, can easily
The rigidity of the gas working medium on the liquid of regulation U-tube right side so that work(is reclaimed and is optimal value with phase adjusted.
Embodiment 2
As Fig. 3 show the utility model embodiment 2 liquid piston work(reclaiming type pulse tube cooling system structure, its with
It is essentially identical in embodiment 1, only difference is that：The outlet of phase modulation apparatus 9 is by pipeline and pressure wave generator 1 and room temperature
Pipeline between the heat exchanger of end is connected, and the pipeline is provided with drag regulator, and such as regulating valve 8, the liquid in U-tube is gallium
Indium alloy, remaining condition is constant.So as to realize the recovery of work(and the regulation of phase to this refrigeration system.In pulse tube cooling system
The course of work in, control to adjust valve 8 aperture, can easily adjust U-tube right side liquid on gas working medium rigidity,
So that work(is reclaimed is optimal value with phase adjusted, and by controlling this regulating valve 8, moreover it is possible to more obviously realize promoting to vascular
The regulation of phase.
Obviously, above-described embodiment of the present utility model is only intended to clearly illustrate the utility model example, and
It is not the restriction to implementation method of the present utility model, for those of ordinary skill in the field, in described above
On the basis of can also make other changes in different forms, all of implementation method cannot be exhaustive here,
It is every to belong to the obvious change or change still in of the present utility model that the technical solution of the utility model extends out
The row of protection domain.
Claims (9)
1. a kind of liquid piston work(reclaiming type pulse tube cooling system, it includes the pressure wave generator, the room temperature that are linked in sequence successively
End heat exchanger, regenerator, cool end heat exchanger, vascular, vascular hot-side heat exchanger and phase modulation apparatus, it is characterised in that：The phase modulation
Pipeline between the outlet of device and vascular hot-side heat exchanger or pressure wave generator and indoor temperature end heat exchanger is connected, the phase modulation dress
Liquid piston is provided with putting.
2. liquid piston work(reclaiming type pulse tube cooling system according to claim 1, it is characterised in that：The liquid piston
The liquid for using is the one kind in room temperature liquid metal, mercury, water and alcohol.
3. liquid piston work(reclaiming type pulse tube cooling system according to claim 1, it is characterised in that：The phase modulation apparatus
It is interior one kind being provided with liquid piston U-tube, straight tube, helix tube and L-type pipe.
4. liquid piston work(reclaiming type pulse tube cooling system according to claim 1, it is characterised in that：In phase modulation dress
The pipeline that pipeline between the outlet put and vascular hot-side heat exchanger or pressure wave generator and indoor temperature end heat exchanger is connected is provided with
Drag regulator.
5. liquid piston work(reclaiming type pulse tube cooling system according to claim 4, it is characterised in that：The resistance regulation
Device is the one kind in regulating valve, capillary and nozzle.
6. liquid piston work(reclaiming type pulse tube cooling system according to claim 1, it is characterised in that：The pressure wave hair
Raw device is the one kind in GM types low frequency generator, VM types low frequency generator, stirling-type radio-frequency generator and thermoacoustic type generator.
7. liquid piston work(reclaiming type pulse tube cooling system according to claim 1, it is characterised in that：The refrigeration system
The gas working medium for using is helium.
8. liquid piston work(reclaiming type pulse tube cooling system according to claim 2, it is characterised in that：The liquid is water
Or during mercury, isolation structure is provided between gas working medium in refrigeration systems and water or mercury.
9. liquid piston work(reclaiming type pulse tube cooling system according to claim 1, it is characterised in that：The refrigeration system
Structure be the one kind in linear pattern, U-shaped and coaxial type；The refrigeration system is single-stage pulse tube refrigeration system or twin-stage vascular system
Cooling system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621320718.XU CN206247682U (en) | 2016-12-05 | 2016-12-05 | Liquid piston work(reclaiming type pulse tube cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621320718.XU CN206247682U (en) | 2016-12-05 | 2016-12-05 | Liquid piston work(reclaiming type pulse tube cooling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206247682U true CN206247682U (en) | 2017-06-13 |
Family
ID=59003438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621320718.XU Withdrawn - After Issue CN206247682U (en) | 2016-12-05 | 2016-12-05 | Liquid piston work(reclaiming type pulse tube cooling system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206247682U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106500385A (en) * | 2016-12-05 | 2017-03-15 | 中国科学院理化技术研究所 | The application wherein of liquid piston work(reclaiming type pulse tube cooling system and liquid piston |
-
2016
- 2016-12-05 CN CN201621320718.XU patent/CN206247682U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106500385A (en) * | 2016-12-05 | 2017-03-15 | 中国科学院理化技术研究所 | The application wherein of liquid piston work(reclaiming type pulse tube cooling system and liquid piston |
| CN106500385B (en) * | 2016-12-05 | 2018-10-30 | 中国科学院理化技术研究所 | The application of liquid piston work(reclaiming type pulse tube cooling system and liquid piston wherein |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170613 Effective date of abandoning: 20181030 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20170613 Effective date of abandoning: 20181030 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |