EP2037203A2 - Kondensatoranordnung - Google Patents

Kondensatoranordnung Download PDF

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Publication number
EP2037203A2
EP2037203A2 EP08163891A EP08163891A EP2037203A2 EP 2037203 A2 EP2037203 A2 EP 2037203A2 EP 08163891 A EP08163891 A EP 08163891A EP 08163891 A EP08163891 A EP 08163891A EP 2037203 A2 EP2037203 A2 EP 2037203A2
Authority
EP
European Patent Office
Prior art keywords
tube
microchannels
group
fin module
assembly
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.)
Withdrawn
Application number
EP08163891A
Other languages
English (en)
French (fr)
Other versions
EP2037203A3 (de
Inventor
Wai Kwan Cheung
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP2037203A2 publication Critical patent/EP2037203A2/de
Publication of EP2037203A3 publication Critical patent/EP2037203A3/de
Withdrawn legal-status Critical Current

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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
    • F28D1/053—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 the conduits being straight
    • F28D1/0535—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 the conduits being straight the conduits having a non-circular cross-section
    • F28D1/05366—Assemblies of conduits connected to common headers, e.g. core type radiators
    • F28D1/05391—Assemblies of conduits connected to common headers, e.g. core type radiators with multiple rows of conduits or with multi-channel conduits combined with a particular flow pattern, e.g. multi-row multi-stage radiators
    • 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
    • F25B39/00—Evaporators; Condensers
    • F25B39/04—Condensers
    • 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
    • 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
    • F28F9/10—Arrangements for sealing elements into header boxes or end plates by dismountable joints by screw-type connections, e.g. gland
    • 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
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/0068—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for refrigerant cycles
    • F28D2021/007—Condensers
    • 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
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/02—Tubular elements of cross-section which is non-circular
    • F28F1/04—Tubular elements of cross-section which is non-circular polygonal, e.g. rectangular
    • 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
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/14—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending longitudinally
    • F28F1/16—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending longitudinally the means being integral with the element, e.g. formed by extrusion
    • 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
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/24—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely
    • F28F1/26—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely the means being integral with the element
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2255/00—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes
    • F28F2255/16—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes extruded
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2275/00—Fastening; Joining
    • F28F2275/20—Fastening; Joining with threaded elements

Definitions

  • the present patent application relates to a condenser assembly.
  • tubes of a condenser using carbon dioxide as refrigerant usually have wall that is quite thick.
  • tubes with thick wall can reduce the functionality of the condenser.
  • the inner diameter of the tubes also has great influence on the heat transfer capacity of a condenser. If the diameter of the tubes decreases, the flow rate of the refrigerant and the convective heat transfer increases. On the other hand, if the diameter of the tubes increases, the wall thickness needs to be increased in order to withstand the high pressure inside the tubes. This results in an increase in the weight of the condenser and an increase in the power of the compressor, and therefore is a waste of energy.
  • the condenser includes a first tube-and-fin module having a first flat tube with a first group of microchannels formed parallelly therethrough.
  • the condenser also includes a second tube-and-fin module arranged next to the first tube-and-fin module.
  • the second tube-and-fin module includes a second flat tube with a second group of microchannels formed parallelly therethrough.
  • the condenser further includes a bottom panel having a bottom group of microchannels.
  • the bottom panel is sealingly coupled to the first and second flat tubes at one common end thereof.
  • the bottom group of microchannels extends between and communicates with the first and second groups of microchannels defining a plurality of continuous passages.
  • the condenser may also include a top panel sealingly coupled to the first and second flat tubes at the other common end thereof.
  • the top panel includes an inlet through-hole which is in communication with inlets of the plurality of continuous passages.
  • the top panel further includes an outlet through-hole which is in communication with outlets of the plurality of continuous passages.
  • the condenser may further include a third tube-and-fin module arranged next to the second tube-and-fin module.
  • the third tube-and-fin module includes a third flat tube with a third group of microchannels formed parallelly therethrough.
  • the top panel includes a top group of microchannels and is sealingly coupled to the third flat tube. The top group of microchannels extends between and communicates with the second and third microchannels defining a plurality of extensions of the continuous passages.
  • the condenser may include a plurality of heat-dissipating fins thermally connected to each of the flat tubes.
  • the heat-dissipating fins are vertical or parallel to the microchannels. The length, width and height of the heat-dissipating fins are varied with requirements on heat transfer capacity.
  • the condenser may include an inlet nozzle sealingly coupled to the top panel at the inlet through-hole and an outlet nozzle sealingly coupled to the top panel at the outlet through-hole.
  • the condenser may include a plurality of tube-and-fin modules arranged side-by-side and next to the third tube-and-fin module forming a plurality of continuous serpentine passages.
  • the condenser may include two side panels covering two opposite sides of the assembly, respectively.
  • the microchannels have a circular cross section and a diameter of about 0.7 mm to about 1.0 mm.
  • the flat tubes are straight seamless tubes formed by extrusion.
  • the flat tubes are made of aluminum.
  • the bottom and top groups of microchannels are integrally formed in the bottom and top panels, respectively.
  • the bottom and top panels are sealingly coupled to the flat tubes.
  • the bottom and top groups of microchannels are V-shaped.
  • FIG. 1 is a perspective view of the condenser assembly according to an embodiment disclosed in the present patent application.
  • the condenser assembly includes a plurality of tube-and-fin modules 5, a top panel 1, a bottom panel 2, and two side panels 6.
  • the plurality of tube-and-fin modules 5 may be disposed vertically and arranged side-by-side to form a condensation core with a plurality of serpentine condensation passages.
  • the condensation core may be covered by the top panel 1, the bottom panel 2, and the two side panels 6.
  • the condenser assembly may be provided with an inlet nozzle 3 and an outlet nozzle 4. Evaporated refrigerant can enter the condenser assembly through the inlet nozzle 3, passes through the tube-and-fin modules 5 where it condenses, and then the condensate can exit through the outlet nozzle 4.
  • FIG. 2 is an exploded view of the condenser assembly of FIG. 1 . It is appreciated that the number and length of the tube-and-fin modules can be altered to satisfy different requirements on heat exchange capacity. There should be at least two tube-and-fin modules 5 in a condenser assembly. According to the illustrated embodiment, there are fourteen tube-and-fin modules 5, and each tube-and-fin module 5 has fourteen microchannels 52.
  • the inlet and outlet nozzles 3, 4 can be sealingly coupled to the top panel 1 by means of two sealing gaskets 7 respectively.
  • the two sealing gaskets 7 may be made of rubber or any other suitable material.
  • top and bottom panels 1, 2 can be sealingly coupled to the tube-and-fin modules 5 by means of a set of sealing gaskets 8.
  • the set of sealing gaskets 8 may be made of silicone or any other suitable material.
  • Screws 9 or any suitable fasteners of different sizes may be employed to fasten the inlet and outlet nozzles 3, 4 to the top panel 1, and to fasten the top, bottom and side panels 1, 2, 6 to the tube-and-fin modules 5. It can be seen that the assembling of the condenser assembly disclosed in the present patent application does not require any welding process.
  • FIG. 3 is a perspective view of the tube-and-fin module 5 of the condenser assembly.
  • Each tube-and-fin module 5 may include a plurality of heat-dissipating fins 51 and a flat tube having a plurality of microchannels 52 extending parallelly therethrough.
  • the heat-dissipating fins 51 are vertical or parallel to the microchannels 52.
  • the fins 51 are also vertical or inclined to flat tube. The length, width and height of the fins are varied with requirements on heat transfer capacity.
  • the flat tubes may be straight seamless flat tubes formed by extrusion.
  • the flat tubes may be made of aluminum, or aluminum alloy, or any other suitable material.
  • Each microchannel 52 may have a circular cross section and a diameter of about 0.7 mm to 1.0 mm. It is understood that the microchannels 52 may have other cross sections.
  • the heat-dissipating fins 51 may be disposed one on top of the other to form a stack of heat-dissipating fins 51.
  • Each heat-dissipating fin 51 can be provided with an opening through which the flat tube can pass.
  • the plurality of straight microchannels 52 may run parallel to one another on a common plane.
  • FIG. 4 is a side view of the tube-and-fin module 5 of FIG. 3 . It can be seen that the heat-dissipating fins 51 may be symmetrically and evenly distributed about the common plane on which the plurality of straight microchannels 52 runs.
  • FIG. 5 is a perspective of the top panel 1 of the condenser assembly.
  • FIG. 6 is a cross sectional view of the top panel 1 of FIG. 5 .
  • the top panel 1 is provided with a plurality of integrally formed microchannels 21.
  • the microchannels 21 can be of any appropriate shape. According to the illustrated embodiment, each microchannel 21 is V-shaped and has two straight microchannel sections. Each V-shaped microchannel 21 has an inlet and an outlet.
  • the top panel 1 may be sealingly coupled to an upper common end of the tubes of the tube-and-fin modules 5 such that each V-shaped microchannel 21 extends between and communicates with two adjacent straight microchannels 52. It is contemplated that the inlet of each V-shaped microchannel 21 is in communication with an outlet of a straight microchannel 52, and the outlet of each V-shaped microchannel 21 is in communication with an inlet of an adjacent straight microchannel 52 to define a continuous passage.
  • the far left side of the top panel 1 may be provided with an inlet through-hole 12, and the far right side of the top panel 1 may be provided with an outlet through-hole 13.
  • the inlet through-hole 12 is in communication with the inlets of the continuous passages of the condenser assembly, and outlet through-hole 13 is in communication with the outlets of the continuous passages of the condenser assembly.
  • the inlet nozzle 3 may be mounted over the inlet through-hole 12 of the top panel 1, and the outlet nozzle 4 may be mounted over the outlet through-hole 13 of the top panel 1.
  • FIG. 7 is a perspective of the bottom panel 2 of the condenser assembly.
  • FIG. 8 is a cross sectional view of the bottom panel 2 of FIG. 7 .
  • each microchannel 21 is also V-shaped.
  • Each V-shaped microchannel 21 has an inlet and an outlet.
  • the bottom panel 2 may be sealingly coupled to a lower common end of the tubes of the tube-and-fin modules 5 such that each V-shaped microchannel 21 extends between and communicates with two adjacent straight microchannels 52. It is contemplated that the inlet of each V-shaped microchannel 21 is in communication with an outlet of a straight microchannel 52, and the outlet of each V-shaped microchannel 21 is in communication with an inlet of an adjacent straight microchannel 52.
  • the V-shaped microchannels 21 are integrally formed on the top and bottom panels 1, 2 and may have a circular cross section and a diameter of about 0.9 mm to 1.0 mm. It is understood that the V-shaped microchannels 21 may have other cross sections.
  • FIG. 9 is a cross sectional view of the condenser assembly of FIG. 1 .
  • Evaporated refrigerant enters the continuous passages of the condenser assembly through the inlet nozzle 3, passes through the inlet through-hole 12, down the straight microchannels 52 at the far left, through the V-shaped microchannels 21 at the bottom panel 2, up the adjacent straight microchannels 52, through the V-shaped microchannels 21 at the top panel 1, and down again until it finally condenses as a condensate, and passes up the straight microchannels 52 at the far right, through the outlet through-hole 13, and exits from the outlet nozzle 4. It is appreciated that the flow along the continuous passages is uni-directional.
  • the condenser disclosed in the present patent application utilizes seamless microchannel technology that combines the advantages of seamless tube, thin wall and small microchannel tube diameter. Also, in view of the fact that the hydraulic radius of a seamless microchannel is very small, its fluid flow condition is quite different from that of a conventional flow channel. The fluid inside a seamless microchannel can enter a flowing condition at a low Reynolds number. This can substantially increase the heat exchange efficiency. Also, seamless microchannels provide a greater contact area, improve the heat transfer capacity, and reduce the size and weight of a condenser assembly.
  • the condenser assembly disclosed in the present patent application is configured to be simply assembled by screws without the necessity of welding. Furthermore, bending of tubes is not required. These can minimize the possibility of refrigerant leakage.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Air-Conditioning For Vehicles (AREA)
EP08163891A 2007-09-11 2008-09-08 Kondensatoranordnung Withdrawn EP2037203A3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNA2007100301827A CN101158525A (zh) 2007-09-11 2007-09-11 一种一体成型翅片式铝合金复合材料无缝微孔散热片的冷凝器和散热网

Publications (2)

Publication Number Publication Date
EP2037203A2 true EP2037203A2 (de) 2009-03-18
EP2037203A3 EP2037203A3 (de) 2009-09-09

Family

ID=39306697

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08163891A Withdrawn EP2037203A3 (de) 2007-09-11 2008-09-08 Kondensatoranordnung

Country Status (4)

Country Link
US (1) US20090065186A1 (de)
EP (1) EP2037203A3 (de)
JP (1) JP2009068834A (de)
CN (1) CN101158525A (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITGE20090054A1 (it) * 2009-07-16 2011-01-17 Termal Srl Dispositivo di riscaldamento ad irraggiamento
WO2010135753A3 (de) * 2009-05-28 2011-03-03 Philipp Pustelnik Plattenkühler für flüssigkeiten

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101672553B (zh) * 2009-09-25 2012-03-28 华南理工大学 一种微通道与外翅片一体成型的平行流换热器
CN103712379B (zh) * 2013-12-24 2017-02-08 柳州豪祥特科技有限公司 一种汽车空调冷凝器的芯体
JP2016109332A (ja) * 2014-12-04 2016-06-20 エルエスアイクーラー株式会社 熱交換器およびその製造方法
CN107401850B (zh) * 2017-08-24 2023-07-14 上海加冷松芝汽车空调股份有限公司 适宜于自然工质的客车空调制冷系统
EP3978855B1 (de) * 2019-06-03 2024-05-01 Hangzhou Sanhua Research Institute Co., Ltd. Wärmetauscher
CN110887388A (zh) * 2019-12-11 2020-03-17 常州爱迪尔制冷科技有限公司 一种高效多层式微通道换热器
CN112432518B (zh) * 2020-11-12 2024-02-20 三花控股集团有限公司 换热器及换热组件
CN121576817A (zh) * 2025-12-10 2026-02-27 大冶斯瑞尔换热器有限公司 一种管翅片式高效换热器及其生产方法

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010135753A3 (de) * 2009-05-28 2011-03-03 Philipp Pustelnik Plattenkühler für flüssigkeiten
ITGE20090054A1 (it) * 2009-07-16 2011-01-17 Termal Srl Dispositivo di riscaldamento ad irraggiamento
WO2011006858A1 (en) * 2009-07-16 2011-01-20 Termal Srl Radiation heating apparatus

Also Published As

Publication number Publication date
JP2009068834A (ja) 2009-04-02
US20090065186A1 (en) 2009-03-12
CN101158525A (zh) 2008-04-09
EP2037203A3 (de) 2009-09-09

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