CN101509736A - Compact microchannel heat exchanger - Google Patents
Compact microchannel heat exchanger Download PDFInfo
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- CN101509736A CN101509736A CNA2009100258101A CN200910025810A CN101509736A CN 101509736 A CN101509736 A CN 101509736A CN A2009100258101 A CNA2009100258101 A CN A2009100258101A CN 200910025810 A CN200910025810 A CN 200910025810A CN 101509736 A CN101509736 A CN 101509736A
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Abstract
The invention discloses a compact micro-passage heat exchanger comprising a shell which is respectively provided with an inlet and an outlet of the high-temperature fluid and low-temperature fluid and a micro-passage. The micro-passage is combined into an integral structure by a method that a high-temperature fluid passage, a low-temperature fluid passage and an interlayer between the high-temperature fluid passage and the low-temperature fluid passage are diffused by atoms. Compared with all existing micro-passage heat exchanger, the compact micro-passage heat exchanger has no thermal resistance generated by welding; the hydrodynamic diameter of the micro-passage can be designed freely; and the heat-transmission area in unit volume is more than 700. The micro-passage heat exchanger can be used as condensers, gas coolers or evaporators used by heat pump water heaters, heat pump boilers and geothermal heat pumps, can greatly improve the heat exchanging capability of the heat exchanger in unit volume, and can save the needed materials of the heat exchanger, thus reducing the volume and weight of the heat pump water heaters, heat pump boilers and geothermal heat pumps.
Description
Technical field:
The present invention relates to the compact microchannel heat exchanger of thermal energy exchange between a kind of working fluid and refrigeration working medium, be particularly related to Teat pump boiler, the condenser that uses in heat pump boiler and the geothermal heat pump, gas cooler or evaporimeter belong to heat transfer heat transfer technology field.
Background technology:
Teat pump boiler all be unable to do without heat exchanger in heat pump boiler and the geothermal heat pump, the performance of heat exchanging device, and size, quality and cost have all proposed very high requirement.To existing the said goods, under the condition that performance and quality are guaranteed, how to make heat exchanger do forr a short time, lighter, more low-cost, become the emphasis of research of technique.Under the certain condition of exchange capability of heat, make the heat exchanger densification, mean that the forced convection heat transfer coefficient of working fluid will improve greatly; The material that heat exchanger constitutes should the intensity height, also wants good heat conductivity, is fit to processing technology.
Researching and developing out at present the micro-channel heat exchanger that is used for heat pump, nearly all is to add the import and export of refrigeration worker system and add and import and export that the worker of freezing makes heat exchanging fluid realize with ready-made aluminum flat tube.As the micro-channel heat exchanger that is used for heat pump of setting forth in number of patent application 200510012007.6,200810115272.0 and 200510079932.0, all be idea or the material object that on the basis of aluminum flat tube, proposes.The structure of the micro-channel heat exchanger that proposes in the number of patent application 200510012007.6 is, many headers and be welded on two flat heat exchange pipe bundles between header, flat heat exchange pipe Shu Caiyong MCA, header adopts many barrel structures of at least two runners, it is characterized in that the header of many barrel structures and the integral planar structure that flat heat exchange pipe bundle solder side adopts extrusion molding.Above structure is the soldering combination between the fin that microchannel that refrigeration worker system is passed through and working fluid pass through, and consequent heat transfer resistance be can not ignore.Simultaneously flat heat exchange pipe is subject to processing the restriction of technology, and the combination to the hydraulic diameter that designs good heat-transfer can implement difficulty or cost is greatly improved.The evaporimeter of the use micro-channel tubes of invention in the micro-channel heat exchanger of invention and the number of patent application 200510079932.0 in the number of patent application 200810115272.0, be that with the difference of the micro-channel heat exchanger of statement in the number of patent application 200510012007.6 the flat heat exchange pipe bundle is to be parallel to ground also to be perpendicular to this overall structure of ground, the flat heat exchange pipe bundle is during perpendicular to ground, help dredging of condensed water, reduce the heat exchange thermal resistance of fin surface under wet cooling condition, help strengthening and conduct heat, improve the heat exchange property of freeze cycle process.But the welding thermal resistance problem between banded pipe in microchannel and the fin, any hydraulic diameter manufacturing cost problem of the microchannel in the banded pipe in microchannel still exists.
Above-mentioned number of patent application is that the refrigeration worker in the micro-channel heat exchanger of representative is made as nature refrigerant or hfc refrigerant, and working fluid is an air.For the microchannel diameter of CO2 in the natural refrigerant, the scope that provides in the number of patent application 200510012007.6 is 0.7 to 1.2mm, and the scope that provides in the number of patent application 200810115272.0 is 0.3 to 3mm.To be used for working fluid be liquid owing to also do not find at present, such as the micro-channel heat exchanger of water, is that the microchannel diameter of the hydraulic fluid side of water and the refrigeration worker micro-channel heat exchanger of making heat exchange need be studied and decides for working fluid therefore.
Summary of the invention:
The objective of the invention is at the deficiencies in the prior art, realization is used for liquid and the refrigeration worker makes the micro-channel heat exchanger of heat exchange, as Teat pump boiler, the condenser that uses in heat pump boiler and the geothermal heat pump, gas cooler or evaporimeter usefulness greatly improve the exchange capability of heat of unit volume heat exchanger, save heat exchanger and use material, thereby reduce Teat pump boiler, the volume and weight of heat pump boiler and geothermal heat pump.
The present invention is achieved in that compact microchannel heat exchanger, comprise housing, on described housing, be provided with the import and export of high temperature fluid import and export and cryogen respectively, it is characterized in that: described housing is provided with the microchannel that some plural passage stacked on top of one another form, odd number layer plural number passage is imported and exported with described high temperature fluid and is communicated on the described microchannel, and its even numbers layer plural number passage is imported and exported with described high temperature fluid and communicated.
Interlayer is all being arranged between the high temperature fluid passage, between the cry-fluid passage and between high temperature fluid passage and the cry-fluid passage.
The present invention propose and the micro-channel heat exchanger realized by the sheet metal lamination of having processed behind the plural passage, be combined into as a whole MCA by the atom diffusion then.The number of plies of microchannel, the columns of every layer of microchannel and the hydraulic diameter of microchannel can be according to heat transfers, the result of heat exchange and mobile performance design, compressive resistance, the design result of rigidity decides.Concrete structure is presented below: processed refrigeration working medium side sheet metal behind the plural passage about, stack is without any the sheet metal of passage, workflow side sheet metal after having processed plural passage again on without any the sheet metal of passage, after the stack, just can design the micro-channel heat exchanger that the size that is met the heat exchange amount and working fluid pressure lose restrictive condition so successively.No matter be the microchannel size of refrigeration working medium side or the microchannel size on workflow side and, can realize conducting heat the design parameter of heat exchange and mobile performance design, compressive resistance, the designing requirement of rigidity without any the thickness of the sheet metal of passage.
The present invention compared with prior art has following advantage:
1. volume is little, under the condition of same exchange capability of heat, compares with double pipe heat exchanger just in use, and volume can reduce more than 100 times.
2. in light weight, under the condition of same exchange capability of heat, to compare with double pipe heat exchanger just in use, weight can be reduced to below 1/8th.
3. the heat transfer area in the unit volume has reached the index of compact heat exchanger definition greater than 700.
4. realized not having thermal resistance, working fluid and refrigeration working medium both sides all are the liquid of micron order passage and the micro-channel heat exchanger of refrigeration working medium heat exchange.
Description of drawings:
Fig. 1 is the flow schematic diagram of compact microchannel heat exchanger of the present invention
Fig. 2 is the variations in temperature schematic diagram of compact microchannel heat exchanger of the present invention
Fig. 3 is the structural representation of the compact microchannel heat exchanger of invention
Fig. 4 is the cut-away enlarged view of microchannel shown in Fig. 3
Among the figure, T
H, iInlet temperature T for high temperature fluid
H, oOutlet temperature for high temperature fluid
T
C, iInlet temperature T for cryogen
C, oOutlet temperature for cryogen
m
hAnd m
cThe flow of representing high temperature fluid and cryogen respectively
Arrow is represented the flow direction of high temperature fluid and cryogen respectively
1. housing 2. high temperature fluid imports 3. high temperature fluids export the import of 4. cryogens
5. outlet 6. microchannels 7. high temperature fluid passages, 8. cry-fluid passage, 9. interlayers of cryogen
The specific embodiment:
From Fig. 3 and Fig. 4 as can be seen, compact microchannel heat exchanger of the present invention, comprise housing 1, on described housing 1, be provided with high temperature fluid respectively and import and export 2 and 3 and the import and export 4 and 5 of cryogen, it is characterized in that: described housing 1 is provided with the microchannel 6 that some plural passage stacked on top of one another form, odd number floor height temperature fluid passage 7 communicates with described high temperature fluid import and export 2 and 3 on the described microchannel 6, its even numbers layer cry-fluid passage 8 is imported and exported 4 and 5 with described cryogen and is communicated, between described high temperature fluid passage 7, between the cry-fluid passage 8 and and high temperature fluid passage 7 and cry-fluid passage 8 between interlayer is all arranged.
High temperature fluid (such as refrigeration working medium) flows into after the inlet 2, the microchannel part 6 that enters heat exchanger.High temperature fluid, flows out through outlet 3 on the contrary after the cryogen heat exchange from other end inlet at microchannel part and flow direction.And cryogen flows out from the outlet 5 of the other end after high temperature fluid obtains heat.High temperature fluid and cryogen flow on one side in the microchannel of heat exchanger part, Yi Bian carry out heat exchange, realize that the temperature decline of high temperature fluid shown in Figure 2 and the temperature of cryogen rise.
The all materials of above-mentioned compact microchannel heat exchanger can be copper, aluminium or stainless steel.
The scope of design of the hydraulic diameter of microchannel is a micron order.
The scope of design of the thickness of the interlayer between the microchannel layers is for also being micron order.
Claims (6)
1. compact microchannel heat exchanger, comprise housing (1), on described housing (1), be provided with high temperature fluid respectively and import and export import and export (4) and (5) of (2) and (3) and cryogen, it is characterized in that: described housing (1) is provided with the microchannel (6) that some plural passage stacked on top of one another form, last odd number floor height temperature fluid passage (7), described microchannel (6) is imported and exported (2) and (3) with described high temperature fluid and is communicated, and its even numbers layer cry-fluid passage (8) is imported and exported (4) and (5) with described cryogen and communicated.
2. compact microchannel heat exchanger according to claim 1 is characterized in that: between the described high temperature fluid passage (7), between the cry-fluid passage (8) and between high temperature fluid passage (7) and the cry-fluid passage (8) interlayer (9) is arranged all.
3. compact microchannel heat exchanger according to claim 1 and 2 is characterized in that: at described high temperature fluid passage (7) and cry-fluid passage (8) is micron order.
4. compact microchannel heat exchanger according to claim 2 is characterized in that: described interlayer (9) is a micron order.
5. compact microchannel heat exchanger according to claim 1 is characterized in that: the material of described microchannel (6) is copper, aluminium or stainless steel.
6. compact microchannel heat exchanger according to claim 1 is characterized in that: the method combination that described high temperature fluid passage (7), cry-fluid passage (8) and interlayer between the two (9) spread with atom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100258101A CN101509736A (en) | 2009-03-10 | 2009-03-10 | Compact microchannel heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100258101A CN101509736A (en) | 2009-03-10 | 2009-03-10 | Compact microchannel heat exchanger |
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| Publication Number | Publication Date |
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| CN101509736A true CN101509736A (en) | 2009-08-19 |
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| CNA2009100258101A Pending CN101509736A (en) | 2009-03-10 | 2009-03-10 | Compact microchannel heat exchanger |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102095284A (en) * | 2011-01-30 | 2011-06-15 | 杭州沈氏换热器有限公司 | Manufacture method of microchannel heat exchange body of heat exchanger |
| CN102116545A (en) * | 2011-01-30 | 2011-07-06 | 杭州沈氏换热器有限公司 | Microchannel heat exchanger |
| CN102564205A (en) * | 2012-01-16 | 2012-07-11 | 杭州沈氏换热器有限公司 | Flow distributing structure of heat exchanger with micro-channels |
| CN102589329A (en) * | 2012-03-21 | 2012-07-18 | 刘赟 | Heat exchanger adopting micro-channels or/and narrow channels on two sides or multiple sides |
| WO2013178066A1 (en) | 2012-05-29 | 2013-12-05 | 杭州沈氏换热器有限公司 | Micro-channel structure for heat exchanger, and integrated type micro-channel heat exchanger |
| RU2649164C1 (en) * | 2016-12-30 | 2018-03-30 | Федеральное государственное бюджетное учреждение науки Институт теплофизики им. С.С. Кутателадзе Сибирского отделения Российской академии наук (ИТ СО РАН) | Device for liquid evaporation |
| CN110312625A (en) * | 2018-01-25 | 2019-10-08 | 高弘炟 | Multistage split type independent control refrigeration system |
| CN111664427A (en) * | 2019-03-09 | 2020-09-15 | 孟想 | Design scheme of ultra-high temperature and ultra-high pressure pore channel type heat exchanger/evaporator |
| CN114577045A (en) * | 2022-03-11 | 2022-06-03 | 西安智烷优创能源科技有限公司 | Filler pipe type micro-channel heat exchanger and manufacturing method thereof |
-
2009
- 2009-03-10 CN CNA2009100258101A patent/CN101509736A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102095284A (en) * | 2011-01-30 | 2011-06-15 | 杭州沈氏换热器有限公司 | Manufacture method of microchannel heat exchange body of heat exchanger |
| CN102116545A (en) * | 2011-01-30 | 2011-07-06 | 杭州沈氏换热器有限公司 | Microchannel heat exchanger |
| CN102095284B (en) * | 2011-01-30 | 2013-03-27 | 杭州沈氏换热器有限公司 | Manufacture method of microchannel heat exchange body of heat exchanger |
| CN102564205A (en) * | 2012-01-16 | 2012-07-11 | 杭州沈氏换热器有限公司 | Flow distributing structure of heat exchanger with micro-channels |
| CN102564205B (en) * | 2012-01-16 | 2014-06-11 | 杭州沈氏换热器有限公司 | Flow distributing structure of heat exchanger with micro-channels |
| CN102589329A (en) * | 2012-03-21 | 2012-07-18 | 刘赟 | Heat exchanger adopting micro-channels or/and narrow channels on two sides or multiple sides |
| CN102589329B (en) * | 2012-03-21 | 2016-01-20 | 湖南创化低碳环保科技有限公司 | The heat exchanger of a kind of both sides or employing microchannel, many sides Huo ∕ and thin passage |
| WO2013178066A1 (en) | 2012-05-29 | 2013-12-05 | 杭州沈氏换热器有限公司 | Micro-channel structure for heat exchanger, and integrated type micro-channel heat exchanger |
| RU2649164C1 (en) * | 2016-12-30 | 2018-03-30 | Федеральное государственное бюджетное учреждение науки Институт теплофизики им. С.С. Кутателадзе Сибирского отделения Российской академии наук (ИТ СО РАН) | Device for liquid evaporation |
| CN110312625A (en) * | 2018-01-25 | 2019-10-08 | 高弘炟 | Multistage split type independent control refrigeration system |
| CN111664427A (en) * | 2019-03-09 | 2020-09-15 | 孟想 | Design scheme of ultra-high temperature and ultra-high pressure pore channel type heat exchanger/evaporator |
| CN114577045A (en) * | 2022-03-11 | 2022-06-03 | 西安智烷优创能源科技有限公司 | Filler pipe type micro-channel heat exchanger and manufacturing method thereof |
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Open date: 20090819 |