CN1971172A - Recuperative heat exchanger with radial reinforced heat conduction - Google Patents
Recuperative heat exchanger with radial reinforced heat conduction Download PDFInfo
- Publication number
- CN1971172A CN1971172A CNA200510126213XA CN200510126213A CN1971172A CN 1971172 A CN1971172 A CN 1971172A CN A200510126213X A CNA200510126213X A CN A200510126213XA CN 200510126213 A CN200510126213 A CN 200510126213A CN 1971172 A CN1971172 A CN 1971172A
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- CN
- China
- Prior art keywords
- metal plate
- heat exchanger
- perforated metal
- radial reinforced
- regenerator
- 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.)
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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
- F25B2309/003—Gas cycle refrigeration machines characterised by construction or composition of the regenerator
Abstract
The invention relates to a regeneration heat exchanger with radial strengthened conduction, comprising the shell of heat returning machine, and metal plate with hole and metal silk screen/shot set in said shell of heat returning machine in certain distance, which is provided with different conductivity. The outer diameter of metal plate with hole is consistent with the inner diameter of outer shell of heat returning machine. The hydraulic diameter of small hole on said metal plate with hole is 0.5mm-5mm. the sum of said small holes is 1/4-2/3 of the section area of metal plate with hole. It is provide with following merits that simple structure, filling in convenience, strengthening the radius heat exchanging ability of regeneration heat exchanger under the precondition that the loss of heat leak at the axial direction is not increased, maintaining the temperature of heat returning machine consistent or small difference at the transverse section of the same axial position, and improving the efficiency of heat returning machine so as to improve the refrigerated performance.
Description
Technical field
The invention belongs to the Recuperative heat exchanger in refrigeration and cryogenic technique field, particularly a kind of Recuperative heat exchanger with radial reinforced heat conduction.
Background technology
The Cryo Refrigerator background that has a wide range of applications in many fields such as military affairs, space technology, low-temperature electronics, cryogenic medicine, cryobiology, natural gas liquefactions.In recent years, the importance of low-temperature refrigeration technology in civilian science and technology and science and techniques of defence increases day by day.Along with various infrared and superconducting electronics Device and products enter the practicability stage, Cryo Refrigerator has obtained developing rapidly, for these relevant technology device low temperature provide effective low temperature cold source, guarantees its operate as normal.
Regenerator is the critical component in the Cryo Refrigerator, and it is widely used in sterlin refrigerator, pulse tube refrigerating machine, and the G-M refrigeration machine is in hot sound refrigerating machine or the thermoacoustic engine.Regenerator has played the effect of backheat cold-storage, and its principle is the fluid that the cold that produces in last cycle of fluid is used for one-period after the precooling, makes the temperature of refrigeration machine cold junction constantly reduce, and finally reaches the cryogenic temperature that we need.
In the refrigeration refrigeration machine that warm area is higher or refrigerating capacity is bigger, in order to reduce the flow losses in the regenerator, usually need to adopt the regenerator structure of less draw ratio, (being usually said short-thick type), and the filler of regenerator adopts stainless steel cloth usually in the existing refrigeration machine, shot or magnetic composite, and they all have a tangible deficiency is cross-section at same axial location, because the radially heat conductivility of filler is poor, cause producing the bigger temperature difference in radial direction.It is more remarkable that this shows in the regenerator of little draw ratio.Thereby influenced the cold-storage performance of regenerator greatly, reduced the effectiveness of regenerator of regenerator.
Summary of the invention
The objective of the invention is to overcome the deficiency of the regenerator structure that has refrigeration machine, a kind of Recuperative heat exchanger with radial reinforced heat conduction is provided, the Recuperative heat exchanger of this band radial reinforced heat conduction can solve the radially shortcoming of capacity of heat transmission deficiency of existing regenerator effectively, strengthened the radially heat exchange of regenerator, keep the temperature uniformity on the same axial location cross section of regenerator or reduce the temperature difference, improve the heat exchange efficiency of regenerator, thereby improve the efficient of refrigeration machine.
Technical scheme of the present invention is as follows:
The Recuperative heat exchanger of band radial reinforced heat conduction provided by the invention comprises: the regenerator housing; It is characterized in that, also comprise:
Alternate different perforated metal plate and the woven wire/shots of thermal conductivity that is positioned in the described regenerator housing;
The external diameter of described perforated metal plate is consistent with the internal diameter of regenerator shell; The hydraulic diameter of aperture is 0.5mm-5mm on the described perforated metal plate; Described aperture area summation is the 1/4-2/3 of perforated metal plate cross-sectional area.
The thickness 1-10mm of described perforated metal plate.Aperture is circular port or square opening on the perforated metal plate.The perforated metal plate can be is with netted lattice metallic plate.The perforated metal plate can be copper with holes, aluminium or silver metallic plate.Described woven wire is phosphor bronze, magnetic metal or stainless steel cloth.The regenerator shell is thin-wall stainless steel, titanium alloy thin-walled tube or nonmetal light-wall pipe.Described nonmetal light-wall pipe is glass reinforced plastic pipe or nylon tube.
The Recuperative heat exchanger of band radial reinforced heat conduction provided by the invention has the following advantages:
It is simple in structure, fill filler easily under the advantage, by adding methods such as regenerator matrix material and change filling mode, can be under the prerequisite that does not increase axial leakage heat loss, strengthened the radially exchange capability of heat of regenerator, keep the temperature uniformity on the same axial location cross section of regenerator or reduce the temperature difference, improve the efficient of regenerator, thereby increase the refrigeration performance of refrigeration machine.
Description of drawings:
Fig. 1 is the structural representation of one embodiment of the invention;
Fig. 2 is the structural representation of another embodiment of the present invention;
Fig. 3 is the schematic diagram of network structure metallic plate of the present invention;
Fig. 4 is the structural representation of perforated metal plate.
The specific embodiment:
Below in conjunction with the drawings and Examples the present invention that further looks familiar:
With reference to Fig. 1,2,3,4, the Recuperative heat exchanger of band radial reinforced heat conduction of the present invention, the Recuperative heat exchanger of band radial reinforced heat conduction provided by the invention comprises: regenerator housing and alternate different perforated metal plate and the woven wire/shots of thermal conductivity that is positioned in the described regenerator housing;
The external diameter of described perforated metal plate is consistent with the internal diameter of regenerator shell; The hydraulic diameter of aperture is 0.5mm-5mm on the described perforated metal plate; Described aperture area summation is the 1/4-2/3 of perforated metal plate cross-sectional area.
The thickness 1-10mm of described perforated metal plate.Aperture is circular port or square opening on the perforated metal plate.The perforated metal plate can be is with netted lattice metallic plate.The perforated metal plate can be copper with holes, aluminium or silver metallic plate.Described woven wire is phosphor bronze, magnetic metal or stainless steel cloth.The regenerator shell is thin-wall stainless steel, titanium alloy thin-walled tube or nonmetal light-wall pipe.Described nonmetal light-wall pipe is glass reinforced plastic pipe or nylon tube.
The Recuperative heat exchanger of band radial reinforced heat conduction of the present invention can interlock and insert stainless steel cloth and copper coin with holes in a regenerator housing, and the stainless steel cloth loading is greater than the loading of perforated metal plate.
The Recuperative heat exchanger of band radial reinforced heat conduction of the present invention also can be in a thin-wall stainless steel, staggered netted copper coin and the stainless steel cloth inserted.The stainless steel cloth loading is greater than the loading of netted copper coin.
Operation principle of the present invention is, cold and hot working fluid alternating current is crossed regenerator, and both flow directions are opposite, when cold fluid flows through regenerator, cooling cold-storage wire packing or copper coin with holes, cold is stored in the cold-storage wire packing, produces a thermograde between temperature end and low-temperature end.The thermal conductivity of copper coin with holes and copper mesh so increased the regenerator capacity of heat transmission radially greatly, makes fluid keep basically identical in the temperature of the radial direction in same cross section than two orders of magnitude of stainless steel wire net height.When hot fluid flows through regenerator, the cold of storing in the regenerator is in order to the cooling incoming flow, in like manner, copper coin with holes and copper mesh can make fluid keep basically identical in the temperature of the radial direction in same cross section, along the regenerator axial direction, temperature of incoming flow is progressively reduced, when arriving the regenerator low-temperature end, reach a lower temperature.
Fig. 1 is a kind of with perforated metal plate 3 and the stainless steel cloth 2 staggered Recuperative heat exchangers of inserting the band radial reinforced heat conduction that constitutes in the regenerator shell 1.Wherein the external diameter of perforated metal plate 3 is consistent with the internal diameter of regenerator shell 1.The hydraulic diameter of aperture is 1mm, 3 or 5mm in the perforated metal plate 3, can decide as required; Aperture area summation is that the 1/4-2/3 of perforated metal plate 3 cross-sectional areas gets final product.Plate thickness can be decided in the 1-10mm scope as required; As long as guarantee the loading of the loading of stainless steel cloth greater than the perforated metal plate.
Embodiment 2
Fig. 2 is a kind of with latticed metallic plate 3 and the stainless steel cloth 2 staggered Recuperative heat exchangers of inserting the band radial reinforced heat conduction that constitutes in the regenerator shell 1.The external diameter of wherein latticed metallic plate 3 is consistent with the internal diameter of regenerator shell 1.The hydraulic diameter of grid is 0.5mm in the latticed metallic plate, can decide as required; Grid area summation is that the 1/4-2/3 of latticed metallic plate 3 cross-sectional areas gets final product.Latticed metallic plate 3 thickness can be decided in the 1-10mm scope as required; As long as guarantee the loading of the loading of stainless steel cloth greater than latticed metallic plate.
In a word, the Recuperative heat exchanger of band radial reinforced heat conduction of the present invention, employed perforated metal plate can be copper with holes, aluminium or silver metallic plate.Woven wire can be phosphor bronze, magnetic metal or stainless steel cloth; Also can make charges with shot.Get final product but the thermal conductivity that guarantees both is different.The regenerator shell can be thin-wall stainless steel, titanium alloy thin-walled tube or nonmetal light-wall pipe (such as glass reinforced plastic pipe).
Claims (9)
1, a kind of Recuperative heat exchanger with radial reinforced heat conduction comprises: the regenerator housing; It is characterized in that, also comprise:
Alternate different perforated metal plate and the woven wire/shots of thermal conductivity that is positioned in the described regenerator housing;
The external diameter of described perforated metal plate is consistent with the internal diameter of regenerator shell; The hydraulic diameter of aperture is 0.5mm-5mm on the described perforated metal plate; Described aperture area summation is the 1/4-2/3 of perforated metal plate cross-sectional area.
2, by the Recuperative heat exchanger of the described band radial reinforced heat conduction of claim 1, comprising: it is characterized in that the thickness 1-10mm of described perforated metal plate.
3, by the Recuperative heat exchanger of claim 1 or 2 described band radial reinforced heat conductions, it is characterized in that aperture is circular port or square opening on the described perforated metal plate.
4, by the Recuperative heat exchanger of claim 1 or 2 described band radial reinforced heat conductions, it is characterized in that described perforated metal plate is for being with netted lattice metallic plate.
5, by the Recuperative heat exchanger of claim 1 or 2 described band radial reinforced heat conductions, it is characterized in that described perforated metal plate is copper with holes, aluminium or silver metallic plate.
6, by the Recuperative heat exchanger of the described band radial reinforced heat conduction of claim 3, it is characterized in that described perforated metal plate is copper with holes, aluminium or silver metallic plate.
7, by the Recuperative heat exchanger of the described band radial reinforced heat conduction of claim 1, it is characterized in that described woven wire is phosphor bronze, magnetic metal or stainless steel cloth.
8, by the Recuperative heat exchanger of the described band radial reinforced heat conduction of claim 1, it is characterized in that described regenerator shell is thin-wall stainless steel, titanium alloy thin-walled tube or nonmetal light-wall pipe.
9, by the Recuperative heat exchanger of the described band radial reinforced heat conduction of claim 8, it is characterized in that described nonmetal light-wall pipe is glass reinforced plastic pipe or nylon tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200510126213XA CN100398938C (en) | 2005-11-25 | 2005-11-25 | Recuperative heat exchanger with radial reinforced heat conduction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200510126213XA CN100398938C (en) | 2005-11-25 | 2005-11-25 | Recuperative heat exchanger with radial reinforced heat conduction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1971172A true CN1971172A (en) | 2007-05-30 |
| CN100398938C CN100398938C (en) | 2008-07-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200510126213XA Expired - Fee Related CN100398938C (en) | 2005-11-25 | 2005-11-25 | Recuperative heat exchanger with radial reinforced heat conduction |
Country Status (1)
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| CN (1) | CN100398938C (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101799229A (en) * | 2010-03-26 | 2010-08-11 | 上海理工大学 | Heat regenerator of heat-regenerating type low-temperature refrigerator |
| CN102128510A (en) * | 2010-01-20 | 2011-07-20 | 住友重机械工业株式会社 | Pulse tube refrigerator |
| CN101762119B (en) * | 2009-12-17 | 2012-02-08 | 中国航天科技集团公司第五研究院第五一○研究所 | Method for reducing axial conduction of cool storage material of heat regenerator of regenerative cryo refrigerator |
| CN101726137B (en) * | 2008-10-16 | 2012-06-27 | 中科力函(深圳)热声技术有限公司 | Heat regenerator and manufacturing method thereof |
| CN102607215A (en) * | 2012-03-23 | 2012-07-25 | 中南大学 | Thermoacoustic regenerator |
| CN102679637A (en) * | 2012-04-05 | 2012-09-19 | 上海理工大学 | Etched metal sheet axial-filling type heat regenerator and assembling method of axial filling type heat regenerator |
| CN106152629A (en) * | 2015-04-08 | 2016-11-23 | 上海交通大学 | Multipaths regenerator for regenerating type low-temperature refrigerator |
| CN107603573A (en) * | 2017-08-09 | 2018-01-19 | 同济大学 | A kind of Multi-layer composite regenerative material and its application |
| CN113063308A (en) * | 2020-01-02 | 2021-07-02 | 中国科学院理化技术研究所 | Heat regenerator |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4551509B2 (en) * | 1998-12-28 | 2010-09-29 | 株式会社東芝 | Cold storage material and cold storage type refrigerator |
| JP4672160B2 (en) * | 2000-03-24 | 2011-04-20 | 株式会社東芝 | Regenerator and regenerative refrigerator using the regenerator |
| CN1144985C (en) * | 2000-03-24 | 2004-04-07 | 东芝株式会社 | Cold accumulator and cold accumulation type freezer using same |
| JP2002206816A (en) * | 2001-01-11 | 2002-07-26 | Fuji Electric Co Ltd | Cold heat storage unit and cryogenic freezer machine using the same |
| JP3996537B2 (en) * | 2003-03-27 | 2007-10-24 | 住友重機械工業株式会社 | Partition material for regenerator and regenerator |
-
2005
- 2005-11-25 CN CNB200510126213XA patent/CN100398938C/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101726137B (en) * | 2008-10-16 | 2012-06-27 | 中科力函(深圳)热声技术有限公司 | Heat regenerator and manufacturing method thereof |
| CN101762119B (en) * | 2009-12-17 | 2012-02-08 | 中国航天科技集团公司第五研究院第五一○研究所 | Method for reducing axial conduction of cool storage material of heat regenerator of regenerative cryo refrigerator |
| CN105485955A (en) * | 2010-01-20 | 2016-04-13 | 住友重机械工业株式会社 | Pulse tube refrigerator |
| CN102128510A (en) * | 2010-01-20 | 2011-07-20 | 住友重机械工业株式会社 | Pulse tube refrigerator |
| CN105485955B (en) * | 2010-01-20 | 2018-05-22 | 住友重机械工业株式会社 | Refrigerator of pulse tube |
| CN101799229B (en) * | 2010-03-26 | 2012-10-03 | 上海理工大学 | Heat regenerator of heat-regenerating type low-temperature refrigerator |
| CN101799229A (en) * | 2010-03-26 | 2010-08-11 | 上海理工大学 | Heat regenerator of heat-regenerating type low-temperature refrigerator |
| CN102607215B (en) * | 2012-03-23 | 2014-07-23 | 中南大学 | Thermoacoustic regenerator |
| CN102607215A (en) * | 2012-03-23 | 2012-07-25 | 中南大学 | Thermoacoustic regenerator |
| CN102679637A (en) * | 2012-04-05 | 2012-09-19 | 上海理工大学 | Etched metal sheet axial-filling type heat regenerator and assembling method of axial filling type heat regenerator |
| CN106152629A (en) * | 2015-04-08 | 2016-11-23 | 上海交通大学 | Multipaths regenerator for regenerating type low-temperature refrigerator |
| CN107603573A (en) * | 2017-08-09 | 2018-01-19 | 同济大学 | A kind of Multi-layer composite regenerative material and its application |
| CN107603573B (en) * | 2017-08-09 | 2020-07-28 | 同济大学 | Multilayer composite regenerative material and application thereof |
| CN113063308A (en) * | 2020-01-02 | 2021-07-02 | 中国科学院理化技术研究所 | Heat regenerator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100398938C (en) | 2008-07-02 |
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Granted publication date: 20080702 Termination date: 20121125 |