CN107062947A - A kind of micro-channel heat exchanger and the vascular refrigerator with the micro-channel heat exchanger - Google Patents
A kind of micro-channel heat exchanger and the vascular refrigerator with the micro-channel heat exchanger Download PDFInfo
- Publication number
- CN107062947A CN107062947A CN201710296344.5A CN201710296344A CN107062947A CN 107062947 A CN107062947 A CN 107062947A CN 201710296344 A CN201710296344 A CN 201710296344A CN 107062947 A CN107062947 A CN 107062947A
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- Prior art keywords
- heat exchanger
- micro
- flat tube
- channel heat
- channel
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/02—Tubular elements of cross-section which is non-circular
- F28F1/022—Tubular elements of cross-section which is non-circular with multiple channels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
- F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
- F28F21/081—Heat exchange elements made from metals or metal alloys
- F28F21/084—Heat exchange elements made from metals or metal alloys from aluminium or aluminium alloys
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/02—Header boxes; End plates
- F28F9/04—Arrangements for sealing elements into header boxes or end plates
- F28F9/06—Arrangements for sealing elements into header boxes or end plates by dismountable joints
- F28F9/12—Arrangements for sealing elements into header boxes or end plates by dismountable joints by flange-type connections
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Geometry (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses a kind of micro-channel heat exchanger and the vascular refrigerator with the micro-channel heat exchanger, belong to low-temperature refrigeration technology field, the micro-channel heat exchanger that the present invention is provided includes housing, housing includes cylinder, the two ends of the cylinder are closed by shrouding, and some flat tube mounting holes are offered on every block of shrouding;Flat tube is sealedly connected between the flat tube mounting hole at two ends, flat tube is separated out the microchannel in some microchannels, all flat tubes as the first medium passage of heat exchanger;Space between the outer wall of each flat tube and cylinder inboard wall connects the second medium passage as heat exchanger with the medium inlet on cylinder and media outlet.The heat exchange area of the micro-channel heat exchanger is big, and heat exchange efficiency is high, and simple in construction.
Description
Technical field
The present invention relates to low-temperature refrigeration technology field, specifically, it is related to a kind of micro-channel heat exchanger and micro- logical with this
The vascular refrigerator of road heat exchanger.
Background technology
Vascular refrigerator is since 1960s comes out, movement-less part, machinery because its is simple in construction, under low temperature
Small, reliable, long lifespan is vibrated, so as to receive significant attention, the study hotspot as refrigeration machine field.With superconductor technology
Continue to develop, high-power pulse tube refrigeration machine is received more and more attention.Slit is used on small-power vascular refrigerator
The problems such as inadequate exchange capability of heat and excessive radial temperature difference occurs in high-power pulse tube refrigeration machine in heat exchanger applications.
Heat exchanger in high-power pulse tube refrigeration machine generally uses shell-and-tube heat exchanger, as physics and chemistry institute of the Chinese Academy of Sciences reports
Its level aftercooler in the vascular refrigerator that 80K can obtain 500W colds use shell-and-tube heat exchanger, but its
The problem of exchange capability of heat is not enough is still suffered from, the regenerator hot-side temperature reported will be significantly larger than normal temperature.
In high-power pulse tube refrigeration machine, although substitute slit heat exchanger using shell-and-tube heat exchanger and be conducive to increase to change
Heat energy power, reduction radial temperature difference distribution, but and not up to ideal effect, regenerator hot-side temperature is still significantly larger than normal temperature, works as work(
When rate increases, there is the problem of exchange capability of heat is not enough.
The content of the invention
The purpose of the present invention is provides a kind of micro-channel heat exchanger, and the micro-channel heat exchanger can be solved effectively in high-power arteries and veins
The problem of exchange capability of heat that heat exchanger is present in control cold is not enough;
Another object of the present invention is provides a kind of vascular refrigerator, and the vascular refrigerator heat exchange power is big, refrigeration machine
Can be good.
To achieve these goals, the micro-channel heat exchanger that the present invention is provided includes housing, and housing includes cylinder, the cylinder
Two ends closed by shrouding, some flat tube mounting holes are offered on every block of shrouding;The company of sealing between the flat tube mounting hole at two ends
Flat tube is connected to, flat tube is separated out the microchannel in some microchannels, all flat tubes as the first medium passage of heat exchanger;It is each flat
Space between the outer wall of pipe and cylinder inboard wall connects second as heat exchanger with the medium inlet on cylinder and media outlet
Medium channel.
In the above-mentioned technical solutions, first medium passage and second medium passage, medium are separated the cylinder into by flat tube
One and medium two flowed respectively in first medium passage and second medium channel interior, be not in contact with each other, set micro- logical inside flat tube
Road, the heat exchange area of the micro-channel heat exchanger is big, and heat exchange efficiency is high, and simple in construction.
Specific scheme is provided with contraposition in the upper flange and lower flange that housing also includes being fixed on cylinder two ends, lower flange
Exhalant canal provided with the outlet of contraposition access medium in the intake tunnel of access medium entrance, upper flange;And provided with insertion water inlet
Outlet conduit in inlet channel in passage, and insertion exhalant canal.
Heat transferring medium enters in second medium passage from the intake tunnel of medium inlet, from the exhalant canal of media outlet
Outflow.The microchannel that refrigerant flows out the flat tube that stimulated the menstrual flow from upper level part flows into next stage part.Effectively solve in big work(
The problem of exchange capability of heat that heat exchanger is present in rate vascular refrigerator is not enough, reduces heat exchanger volume, strengthens exchange capability of heat.
Another specific scheme is that shrouding is fixed in the centre bore of upper flange and lower flange, in the centre bore of upper flange
Wall is provided with the stage portion for being beneficial to welding cylinder, the centre bore of lower flange provided with the groove for coordinating barrel end insertion.
Another specific scheme is the shelf that second medium channel interior is provided with increase medium stroke.
It in cross-sectional width is that 12mm, length are on 1mm flat tube, to be distributed with 12-16 that another specific scheme, which is,
Microchannel.Separate passage causes heat exchange efficiency higher.
Another specific scheme is that the material of flat tube is aluminium.Using refining, aluminium bar is by hot extrusion and carries out surface lacquer
The aluminium flat conduit of thin-walled porous flat pipe shape formed by preservative treatment, for pipeline used inside conventional shell-and-tube, in phase
Heat exchange area is considerably increased in the case of with porosity, heat exchange property is enhanced.
In order to realize above-mentioned another object, the vascular refrigerator that the present invention is provided, including be sequentially connected compressor, after level
Cooler, regenerator, cool end heat exchanger, vascular, hot end heat exchanger, inertia tube and air reservoir, level aftercooler employ above-mentioned micro-
Channel heat exchanger.It is of the invention to be commonly used to a grade aftercooler for channel heat exchanger because level aftercooler heat exchange amount is larger.
Specific scheme is that cool end heat exchanger and/or hot end heat exchanger employ above-mentioned micro-channel heat exchanger.
Compared with prior art, beneficial effects of the present invention are:
It is simple in construction, it is easy to implement, does not have particular/special requirement to vascular refrigerator miscellaneous part.Using micro-channel heat exchanger,
The problem of exchange capability of heat deficiency that heat exchanger is present in high-power pulse tube refrigeration machine can effectively be solved, reduces exchanger body
Product, increases space availability ratio, strengthens exchange capability of heat, improves vascular refrigerator performance.
Brief description of the drawings
Fig. 1 is the structural representation of micro-channel heat exchanger embodiment of the present invention;
Fig. 2 is the upper flange positive structure schematic of micro-channel heat exchanger embodiment of the present invention;
Fig. 3 is the upper flange structure schematic diagram of micro-channel heat exchanger embodiment of the present invention;
Fig. 4 is the flat tube configuration schematic diagram of micro-channel heat exchanger embodiment of the present invention;
Fig. 5 is the lower flange positive structure schematic of micro-channel heat exchanger embodiment of the present invention;
Fig. 6 is the lower flange structure schematic diagram of micro-channel heat exchanger embodiment of the present invention;
Fig. 7 is the structural representation of vascular refrigerator embodiment of the present invention.
Wherein, 1, upper flange;2nd, screwed hole;3rd, seal groove;4th, seal groove;5th, flat tube;6th, outlet conduit;7th, cylinder
Body;8th, lower flange;9th, inlet pipeline;10th, screwed hole;11st, flat tube mounting hole;12nd, exit passageway;13rd, groove;14th, microchannel;
15th, groove;16th, intake channel;17th, screwed hole;18th, flat tube mounting hole;19th, sealing surface;20th, compressor;21st, cooled down after level
Device;22nd, regenerator;23rd, cool end heat exchanger;24th, vascular;25th, hot end heat exchanger;26th, inertia tube;27th, air reservoir.
Embodiment
With reference to embodiments and its accompanying drawing the invention will be further described.
Micro-channel heat exchanger embodiment
Referring to Fig. 1 to Fig. 6, micro-channel heat exchanger includes housing, and housing includes cylinder 7 and is sealingly mounted at the two ends of cylinder 7
Upper flange 1 and lower flange 8.
Upper flange 1 is provided with the screwed hole 2 and screwed hole 10 circumferentially for being used for connecting next stage part.In upper flange
1 front, carries out sealed seal groove 4, close to the week of screwed hole 10 close to being circumferentially with for screwed hole 2 to next stage part
To provided with sealed seal groove 3 is carried out to next stage part, the aperture of the intermediate throughholes of upper flange 1 is provided with shrouding, shrouding
It is provided with some flat tube mounting holes 11.In the side of upper flange 1, the exit passageway 12 of connection intermediate throughholes, exit passageway 12 are connected with
Interior sealing is provided with outlet conduit 6.The groove for connector drum 7 is provided with the back side of upper flange 1, the aperture of intermediate throughholes
13。
Lower flange 8 is provided with the screwed hole 17 circumferentially for being used for connecting upper level part.In the front of lower flange 8,
The groove 15 for connector drum 7 is provided with the aperture of intermediate throughholes.At the back side of lower flange 8, provided with entering to upper level part
The sealed sealing surface 19 of row.The aperture of the intermediate throughholes of lower flange 8, which is provided with shrouding, shrouding, is provided with some and flat tube mounting hole 11
Corresponding flat tube mounting hole 18.In the side of lower flange 8, it is connected with the intake channel 16 of connection intermediate throughholes, intake channel 16
It is sealed and installed with inlet pipeline 9.
The two ends of flat tube 5 are separately mounted in the flat tube mounting hole 18 of the flat tube mounting hole 11 of upper flange 1 and lower flange 8.
Flat tube 5 is aluminium flat conduit, using refining aluminium bar is by hot extrusion and to carry out thin-walled formed by surface lacquer preservative treatment porous flat
Tubular material.It is 12mm in width, thickness is on 1mm thin-walled flat tube, provided with 12-16 microchannel 14, wall thickness only 0.2mm is left
It is right.For pipeline used inside conventional shell-and-tube, heat exchange area is considerably increased in the case of same porosity, by force
Heat exchange property is changed.
The microchannel 14 that the outside of flat tube 5 is constituted inside second medium passage, flat tube 5 with the inner space of cylinder 7 is constituted
First medium passage.Cooling water is connected with second medium passage, first medium passage is connected with refrigerant such as liquid helium.First medium leads to
Fluid in road and second medium passage is not in contact with each other.
For dividing wall type heat exchanger, such as shell-and-tube heat exchanger, diabatic process includes tube fluid to pipe interior sidewall surface
Heat exchange, the heat exchange of pipe interior sidewall surface to pipe outer side surface, these three parts of the heat exchange of pipe outer side surface to pipe lateral fluid.When
When under steady state conditions, a reactor, keep constant by the heat flow Φ of each link, so that the temperature difference of each link can be expressed as follows:
Wherein, tfiFor pipe fluid inside temperature, twiFor pipe interior sidewall surface temperature, twoFor pipe outer side surface temperature, tfoFor pipe
Lateral fluid temperature, Φ is heat flow, hiFor the combined heat transfer coefficient on the inside of pipe, hoFor the combined heat transfer coefficient on the outside of pipe, λiFor
The thermal conductivity factor of pipe wall material, diFor bore, doFor pipe external diameter, l is pipe range.Three formulas can be obtained more than:
When pipe outside area is AoWhen, the coefficient of heat transfer can be tried to achieve as follows:
Φ=kAo(tfi-tfo)=k π dol(tfi-tfo)
Two formulas are obtained more than, and when on the basis of pipe outside area, heat transfer coefficient calculation formula is as follows:
Heat penetration calculation formula is as follows:
Wherein, ksMaterial thermal conductivity, f is frequency, ρsFor density, csFor specific heat capacity.In high-power pulse tube refrigeration machine,
More a height of 60Hz of usual frequency or so, the heat penetration for calculating gained stainless steel is less than 1mm.
Shell-and-tube heat exchanger and micro-channel heat exchanger of the contrast with same porosity, micro-channel heat exchanger is in gas side
Heat exchange area is 4 times to 5 times of pipe shell type heat exchange area, and due to the reduction of pipe thickness, the thermal conduction resistance of stainless steel also with
Corresponding reduction;Internal diameter of the pipeline is reduced, close with boundary layer thickness equivalent, and flow disturbance increase, the gas side coefficient of heat transfer is improved.
Total heat transfer coefficient is accordingly improved.
In the present embodiment, cylinder 7 is connected by way of welding with upper flange 1 and the sealing of lower flange 8.Outlet conduit 6 leads to
The mode for crossing welding is sealingly mounted in exit passageway 12.Inlet pipeline 9 is sealingly mounted at intake channel by way of welding
In 16.Flat tube 5 is arranged between flat tube mounting hole 11 and flat tube mounting hole 18 by way of welding.
Vascular refrigerator embodiment
Referring to Fig. 7, the vascular refrigerator of the present embodiment includes the compressor 20, level aftercooler 21, backheat being sequentially connected
Device 22, cool end heat exchanger 23, vascular 24, hot end heat exchanger 25, inertia tube 26 and air reservoir 27.Inertia tube 26 is U-tube road.
Wherein, level aftercooler 21, cool end heat exchanger 23 and hot end heat exchanger 25 can be real using above-mentioned micro-channel heat exchanger
The larger level aftercooler 21 of the micro-channel heat exchanger in example, especially heat exchange amount is applied, because level aftercooler heat exchange amount is larger,
There is the problem of exchange capability of heat is not enough, preferable effect is had using micro-channel heat exchanger.
Claims (8)
1. a kind of micro-channel heat exchanger, including housing, it is characterised in that:
Described housing includes cylinder, and the two ends of the cylinder are closed by shrouding, and some flat tubes are offered on every block of shrouding and are installed
Hole;
Flat tube is sealedly connected between the flat tube mounting hole at two ends, the flat tube is separated out in some microchannels, all flat tubes
Microchannel as heat exchanger first medium passage;
Space between the outer wall of each flat tube and cylinder inboard wall is connected with the medium inlet on cylinder and media outlet as heat exchange
The second medium passage of device.
2. micro-channel heat exchanger according to claim 1, it is characterised in that:
The housing is also included in the upper flange and lower flange for being fixed on the cylinder two ends, the lower flange provided with contraposition access
Exhalant canal provided with the contraposition access media outlet in the intake tunnel of the medium inlet, the upper flange;
And provided with the outlet conduit in the inlet channel inserted in the intake tunnel, and the insertion exhalant canal.
3. micro-channel heat exchanger according to claim 1, it is characterised in that:
Described shrouding is fixed in the centre bore of upper flange and lower flange, and the center bore inner wall of the upper flange, which is provided with, is beneficial to weldering
Connect in the groove of the cylinder, the centre bore of the lower flange provided with the groove for coordinating barrel end insertion.
4. micro-channel heat exchanger according to claim 1, it is characterised in that:
The second medium channel interior is provided with the shelf of increase medium stroke.
5. micro-channel heat exchanger according to claim 1, it is characterised in that:
It is that 12mm, length are that on 1mm flat tube, 12-16 microchannel is distributed with cross-sectional width.
6. micro-channel heat exchanger according to claim 1, it is characterised in that:
The material of the flat tube is aluminium.
7. a kind of vascular refrigerator, including be sequentially connected compressor, level aftercooler, regenerator, cool end heat exchanger, vascular,
Hot end heat exchanger, inertia tube and air reservoir, it is characterised in that:
The level aftercooler uses any described micro-channel heat exchanger in claim 1-6.
8. vascular refrigerator according to claim 7, it is characterised in that:Described cool end heat exchanger and/or hot junction heat exchange
Device is using the micro-channel heat exchanger described in any one of 1-6.
Priority Applications (1)
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CN201710296344.5A CN107062947A (en) | 2017-04-28 | 2017-04-28 | A kind of micro-channel heat exchanger and the vascular refrigerator with the micro-channel heat exchanger |
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CN201710296344.5A CN107062947A (en) | 2017-04-28 | 2017-04-28 | A kind of micro-channel heat exchanger and the vascular refrigerator with the micro-channel heat exchanger |
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CN201710296344.5A Pending CN107062947A (en) | 2017-04-28 | 2017-04-28 | A kind of micro-channel heat exchanger and the vascular refrigerator with the micro-channel heat exchanger |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108413787A (en) * | 2018-02-06 | 2018-08-17 | 浙江大学 | A kind of plate heat exchanger and the vascular refrigerator with the plate heat exchanger |
CN110864468A (en) * | 2019-10-22 | 2020-03-06 | 杭州电子科技大学 | Low-temperature refrigerator adopting micro-channel metal round pipe heat exchanger as post-stage cooler |
CN112268377A (en) * | 2020-10-26 | 2021-01-26 | 浙江大学 | Cross-pipe type heat exchanger and pulse tube refrigerator with same |
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CN2519895Y (en) * | 2001-12-07 | 2002-11-06 | 西安交通大学 | Pulse tube refrigerator |
CN101532757A (en) * | 2009-03-06 | 2009-09-16 | 浙江康盛股份有限公司 | A parallel flow type shell-pipe heat exchanger |
CN101782335A (en) * | 2009-01-20 | 2010-07-21 | 三花丹佛斯(杭州)微通道换热器有限公司 | Micro-channel heat exchanger and flat pipe thereof |
CN101832675A (en) * | 2010-04-30 | 2010-09-15 | 浙江大学 | Pulse tube refrigerator with elastic air reservoir |
CN101995172A (en) * | 2010-11-02 | 2011-03-30 | 金龙精密铜管集团股份有限公司 | Micro-channel heat exchanger and equipment using same |
CN103216966A (en) * | 2013-04-25 | 2013-07-24 | 浙江大学 | Free piston type pulse tube refrigerator |
EP2738503A1 (en) * | 2012-11-30 | 2014-06-04 | Carlos Quesada Saborio | Heat exchanger means |
CN103968592A (en) * | 2014-04-08 | 2014-08-06 | 浙江大学 | Pulse tube refrigerator using corrugated pipe as adjustable air reservoir |
CN104595056A (en) * | 2013-10-31 | 2015-05-06 | 北京精密机电控制设备研究所 | Cold end heat exchanger of free piston type Stirling engine |
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2017
- 2017-04-28 CN CN201710296344.5A patent/CN107062947A/en active Pending
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
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CN2519895Y (en) * | 2001-12-07 | 2002-11-06 | 西安交通大学 | Pulse tube refrigerator |
CN101782335A (en) * | 2009-01-20 | 2010-07-21 | 三花丹佛斯(杭州)微通道换热器有限公司 | Micro-channel heat exchanger and flat pipe thereof |
CN101532757A (en) * | 2009-03-06 | 2009-09-16 | 浙江康盛股份有限公司 | A parallel flow type shell-pipe heat exchanger |
CN101832675A (en) * | 2010-04-30 | 2010-09-15 | 浙江大学 | Pulse tube refrigerator with elastic air reservoir |
CN101995172A (en) * | 2010-11-02 | 2011-03-30 | 金龙精密铜管集团股份有限公司 | Micro-channel heat exchanger and equipment using same |
EP2738503A1 (en) * | 2012-11-30 | 2014-06-04 | Carlos Quesada Saborio | Heat exchanger means |
CN103216966A (en) * | 2013-04-25 | 2013-07-24 | 浙江大学 | Free piston type pulse tube refrigerator |
CN104595056A (en) * | 2013-10-31 | 2015-05-06 | 北京精密机电控制设备研究所 | Cold end heat exchanger of free piston type Stirling engine |
CN103968592A (en) * | 2014-04-08 | 2014-08-06 | 浙江大学 | Pulse tube refrigerator using corrugated pipe as adjustable air reservoir |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108413787A (en) * | 2018-02-06 | 2018-08-17 | 浙江大学 | A kind of plate heat exchanger and the vascular refrigerator with the plate heat exchanger |
CN110864468A (en) * | 2019-10-22 | 2020-03-06 | 杭州电子科技大学 | Low-temperature refrigerator adopting micro-channel metal round pipe heat exchanger as post-stage cooler |
CN112268377A (en) * | 2020-10-26 | 2021-01-26 | 浙江大学 | Cross-pipe type heat exchanger and pulse tube refrigerator with same |
CN112268377B (en) * | 2020-10-26 | 2022-02-11 | 浙江大学 | Cross-pipe type heat exchanger and pulse tube refrigerator with same |
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Application publication date: 20170818 |
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