WO2015101248A1 - Microchannel heat exchanger with improvement of dirt-resisting and anti-blocking - Google Patents

Microchannel heat exchanger with improvement of dirt-resisting and anti-blocking Download PDF

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Publication number
WO2015101248A1
WO2015101248A1 PCT/CN2014/095267 CN2014095267W WO2015101248A1 WO 2015101248 A1 WO2015101248 A1 WO 2015101248A1 CN 2014095267 W CN2014095267 W CN 2014095267W WO 2015101248 A1 WO2015101248 A1 WO 2015101248A1
Authority
WO
WIPO (PCT)
Prior art keywords
heat exchanger
tube
head tube
exchanger unit
tubes
Prior art date
Application number
PCT/CN2014/095267
Other languages
English (en)
French (fr)
Inventor
Yizhou Fan
Hongyu Zhang
Chunfeng Zhang
Lei MENG
Original Assignee
Liebert Corporation
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 Liebert Corporation filed Critical Liebert Corporation
Priority to US15/108,838 priority Critical patent/US20160327342A1/en
Priority to EP14838894.5A priority patent/EP2906892A4/en
Publication of WO2015101248A1 publication Critical patent/WO2015101248A1/en

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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
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/30—Arrangement or mounting of heat-exchangers
    • 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
    • F28D1/0408—Multi-circuit heat exchangers, e.g. integrating different heat exchange sections in the same unit or heat exchangers for more than two fluids
    • F28D1/0426—Multi-circuit heat exchangers, e.g. integrating different heat exchange sections in the same unit or heat exchangers for more than two fluids with units having particular arrangement relative to the large body of fluid, e.g. with interleaved units or with adjacent heat exchange units in common air flow or with units extending at an angle to each other or with units arranged around a central element
    • F28D1/0435—Combination of units extending one behind the other
    • 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
    • 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
    • F28F1/126—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 consisting of zig-zag shaped fins
    • F28F1/128—Fins with openings, e.g. louvered fins
    • 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
    • F28F1/22—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 having portions engaging further tubular elements
    • 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
    • F28F9/26—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators
    • F28F9/262—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators for radiators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2215/00—Fins
    • F28F2215/02—Arrangements of fins common to different heat exchange sections, the fins being in contact with different heat exchange media
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2260/00—Heat exchangers or heat exchange elements having special size, e.g. microstructures
    • F28F2260/02—Heat exchangers or heat exchange elements having special size, e.g. microstructures having microchannels

Definitions

  • This application relates to a heat exchanger, and particularly to a microchannel heat exchanger with improvement of dirt-resisting and anti-blocking.
  • a microchannel heat exchanger Since a microchannel heat exchanger has excellent heat transfer performance and pressure drop performance, it is applied early to electronic heating elements or the like, and then has been gradually developed to be applied to equipment such as air conditioners for vehicles, houses and computer rooms.
  • the microchannel heat exchanger includes a plurality of flat tubes parallel to each other and fins located between two adjacent flat tubes. Each flat tube is provided inside with a plurality of microchannels that are arranged side by side and extend in the length direction of the flat tube.
  • air flow produced from a fluid machine is in heat exchange with the flat tubes and the fins of the heat exchanger.
  • the fins of the microchannel heat exchanger extend in a sinusoidal waveform, and have side walls in form of a louver.
  • This kind of microchannel heat exchanger is disclosed in Chinese patent application No. 200910302901.5. However, such a structure of the fin is easily adhered with dust particles to cause dirty and blocking, and is difficult to be cleaned. Thus, this kind of microchannel heat exchanger is hard to be used in an air conditioner working in a harsh environmental condition.
  • a plurality of microchannel heat exchangers may be stacked together to use, with the fins of two vertical adjacent microchannel heat exchangers being staggered and failing to be aligned with each other. Since the fins of each microchannel heat exchanger are arranged closely, if the fins of vertical adjacent microchannel heat exchangers are staggered with each other, it is easier to accumulate dust particles to cause dirty and blocking between adjacent microchannel heat exchangers, and even worse with time. There may be a large potential safety hazard when the conventional microchannel heat exchanger is used in a computer room air conditioner (CRAC) in a harsh environmental condition for a long time.
  • CRAC computer room air conditioner
  • the present application aims to provide a microchannel heat exchanger with improvement of dirt-resisting and anti-blocking.
  • a microchannel heat exchanger with improvement of dirt-resisting and anti-blocking including at least two heat exchanger units arranged vertically in parallel with each other, wherein the top one is a first heat exchanger unit, and the bottom one is a second heat exchanger unit.
  • Each heat exchanger unit includes a first head tube and a second head tube arranged oppositely in a horizontal direction, and a plurality of flat tubes extending between the first head tube and the second head tube with two ends of each flat tube being respectively communicated with the first head tube and the second head tube.
  • the microchannel heat exchanger further includes a plurality of fins located between adjacent flat tubes of each heat exchanger unit and contacting with the adjacent flat tubes; and the fins extend from the first heat exchanger unit to the second heat exchanger unit.
  • the microchannel heat exchanger with improvement of dirt-resisting and anti-blocking further includes an inlet tube communicated with the first heat exchanger unit, an outlet tube communicated with the second heat exchanger unit and an intermediate tube configured to communicate adjacent heat exchanger units.
  • the inlet tube is communicated with the first head tube of the first heat exchanger unit.
  • the number of the inlet tubes is one or more.
  • the inlet tube is connected to a middle portion of the first head tube of the first heat exchanger unit; or when the number of the inlet tube is more than one, the inlet tubes are evenly connected to the first head tube of the first heat exchanger unit.
  • the number of the intermediate tubes is one or more.
  • the intermediate tube is connected to a middle portion of the one of the first head tube and the second head tube; or when the number of the intermediate tubes is more than one, the intermediate tubes are evenly connected to the one of the first head tube and the second head tube.
  • a second head tube of a heat exchanger unit which is odd-numbered from the top down is communicated with a second head tube of a heat exchanger unit immediately below the odd-numbered heat exchanger unit through the intermediate tube.
  • a first head tube of a second heat exchanger unit is provided thereon with one or more outlet tube.
  • the outlet tube is arranged at a middle portion of the first head tube of the second heat exchanger unit; or when the number of the outlet tubes is more than one, the outlet tubes are evenly connected to the first head tube of the second heat exchanger unit.
  • a second head tube of a second heat exchanger unit is provided thereon with one or more outlet tube.
  • the outlet tube is provided at a middle portion of the second head tube of the second heat exchanger unit; or when the number of the outlet tubes is more than one, the outlet tubes are evenly connected to the second head tube of the second heat exchanger unit.
  • the microchannel heat exchanger with improvement of dirt-resisting and anti-blocking further includes a plurality of supporters for fixing adjacent heat exchanger units. Two ends of some of the supporters are respectively connected to first head tubes of adjacent heat exchanger units, and two ends of the other of the supporters are respectively connected to second head tubes of the adjacent heat exchanger units.
  • the supporter is provided thereon with a fixing lug.
  • microchannel heat exchanger with improvement of dirt-resisting and anti-blocking may bring about some advantageous effects. For example, since the same fin is shared by a plurality of heat exchanger units from the top down, such microchannel heat exchanger may overcome the disadvantage of becoming dirty and blocking in the conventional technology as a result of accumulating dust particles on staggered fins of a plurality of microchannel heat exchangers stacked in use, and also may have an excellent heat dissipation effect.
  • Figure 1 is an overall schematic structural view of a microchannel heat exchanger of the present application
  • Figure 2 is a partial schematic structural view of the microchannel heat exchanger of the present application.
  • Figure 3 is a schematic structural view of fins according to an embodiment of the present application.
  • Figure 4 is a schematic structural view of fins according to another embodiment of the present application.
  • Figure 5 is an enlarged cross-sectional view taken along line A-A in Figure 3 or 4.
  • FIG 1 is an overall schematic structural view of a microchannel heat exchanger 100 of the present application
  • Figure 2 is a partial schematic structural view of the microchannel heat exchanger 100 of the present application.
  • the microchannel heat exchanger 100 includes at least two heat exchanger units arranged vertically and parallel to each other with the top one being a first heat exchanger unit 101 and the bottom one being a second heat exchanger unit 102.
  • Each heat exchanger unit includes a first head tube 103 and a second head tube 104 which are arranged oppositely in a horizontal direction, and a plurality of flat tubes 105 extending between the first head tube 103 and the second head tube 104, with two ends of each flat tube 105 being respectively communicated with the first head tube 103 and the second head tube 104.
  • the first head tubes 103, the second head tubes 104 and the flat tubes 105 of the plurality of heat exchanger units are aligned with each other respectively in a vertical direction.
  • An inlet tube 106 communicated with the first head tube 103 of the first heat exchanger unit 101 is arranged on the first heat exchanger unit 101, and the fluid flows in the first head tube 103 through the inlet tube 106.
  • the number of the inlet tubes 106 is one or more.
  • the inlet tube 106 is connected to a middle portion of the first head tube 103; and if there are more than one inlet tubes 106, the inlet tubes 106 are connected to the first head tube 103 evenly to get even distribution of flow.
  • An intermediate tube 107 for communicating with second head tubes 104 of adjacent heat exchanger units is provided on the second head tube 104 of the first heat exchanger unit 101. Specifically, the intermediate tube 107 is provided between two adjacent heat exchanger units for introducing the fluid from an upper heat exchanger unit into a lower heat exchanger unit.
  • one of the first head tube 103 and the second head tube 104 of the heat exchanger unit between the first heat exchanger unit 101 and the second heat exchanger unit 102 is communicated with one of its adjacent heat exchanger units through the intermediate tube 107, and the other one of the first head tube 103 and the second head tube 104 of the same heat exchanger unit is communicated with the other one of its adjacent heat exchanger units.
  • the number of the intermediate tubes 107 is one or more.
  • the intermediate tube 107 is connected to the middle portion of one of the first head tube 103 and the second head tube 104; and if there are more than one intermediate tubes 107, the intermediate tubes 107 are evenly connected to the one of the first head tube 103 and the second head tube 104 to get even distribution of flow. In this way, the fluid may flow through each heat exchanger unit from the top down in sequence.
  • the same intermediate tube 107 may be connected with two first head tubes 103 or two second head tubes 104, thus simplifying the arrangement of the intermediate tube 107. More specifically, the second head tube 104 of the heat exchanger unit which is odd-numbered from the top down is communicated with the second head tube 104 of the next odd-numbered heat exchanger unit through the intermediate tube 107.
  • one of the first head tube 103 and the second head tube 104 is communicated with a heat exchanger unit immediately above the second heat exchanger unit 102, and the other one of the first head tube 103 and the second head tube 104 is provided with an outlet tube 108.
  • the number of the outlet tubes 108 is one or more.
  • the outlet tube 108 is arranged at a middle portion of the other one of the first head tube 103 and the second head tube 104; and if there are more than one outlet tubes 108, the outlet tubes 108 are evenly connected to the other one of the first head tube 103 and the second head tube 104 to get even distribution of flow.
  • the first head tube 103 of the second heat exchanger unit 102 is provided thereon with the outlet tube 108; or when the number of the heat exchanger units is odd, the second head tube 104 of the second heat exchanger unit 102 is provided thereon with the outlet tube 108.
  • the microchannel heat exchanger 100 further includes a plurality of fins 109 located between and contacting two adjacent flat tubes 105 of each of the heat exchanger units.
  • the fins 109 extend from the first heat exchanger unit 101 to the second heat exchanger unit 102.
  • the fins 109 may be, for example, connected to adjacent flat tubes 105 of the plurality of heat exchanger units by welding. Since the same fin 109 is shard by the plurality of heat exchanger units from the top down, the disadvantage of becoming dirty and blocking in the conventional technology as a result of accumulating dust particles on staggered fins of a plurality of microchannel heat exchangers stacked in use can be overcome.
  • the microchannel heat exchanger 100 further includes a plurality of supporters 110 for fixing adjacent heat exchanger units. Two ends of some of the supporters 110 are respectively connected to first head tubes 103 of adjacent heat exchanger units, and two ends of the other of the supporters 110 are respectively connected to second head tubes 104 of adjacent heat exchanger units, such that the plurality of heat exchanger units are firmly connected together.
  • the supporter 110 may further be provided with a fixing lug 111 for fixing the whole microchannel heat exchanger 100, whereby fixing the microchannel heat exchanger 100 to an air conditioning system.
  • Figure 3 is a schematic structural view of fins 109 according to an embodiment of the present application
  • Figure 4 is a schematic structural view of fins 109 according to another embodiment of the present application
  • Figure 5 is an enlarged cross-sectional view taken along line A-Aof Figure 3 or 4.
  • the fins 109 extend in a U-shaped wave (as in Figure 3) or a rectangular wave (as in Figure 4) in the length direction of a flat tube, with a wave distance P of the U-shaped wave or rectangular wave being ranged preferably between 2.20mm and 5.06mm. Within this range, the resistance to air flow is moderate, and the effective heat exchange area is large, and the heat exchange effect is better.
  • the section of fins 109 in a vertical direction is in a shape of a trapezoidal ripple.
  • the shape of trapezoidal ripple may reduce the air flow resistance applied to the fins, increase the effective air flow amount for heat exchanging, produce a high efficiency of heat exchanging, and be processed simply.
  • the microchannel heat exchanger 100 Compared with the conventional technology, in the microchannel heat exchanger 100 according to the present application, since the same fin 109 is shared by a plurality of heat exchanger units from the top down, the disadvantage of becoming dirty and blocking in the conventional technology as a result of accumulating dust particles on staggered fins of a plurality of microchannel heat exchangers stacked in use can be overcome, and the microchannel heat exchanger 100 has excellent heat dissipation effect.
PCT/CN2014/095267 2013-12-31 2014-12-29 Microchannel heat exchanger with improvement of dirt-resisting and anti-blocking WO2015101248A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US15/108,838 US20160327342A1 (en) 2013-12-31 2014-12-29 Microchannel heat exchanger with improvement of dirt-resisting and anti-blocking
EP14838894.5A EP2906892A4 (en) 2013-12-31 2014-12-29 MICRO-CHANNEL HEAT EXCHANGERS WITH IMPROVED DIRT AND BLOCKING RESISTANCE

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201320890793.XU CN203704716U (zh) 2013-12-31 2013-12-31 可改善抗脏堵能力的微通道换热器
CN201320890793.X 2013-12-31

Publications (1)

Publication Number Publication Date
WO2015101248A1 true WO2015101248A1 (en) 2015-07-09

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ID=51055140

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2014/095267 WO2015101248A1 (en) 2013-12-31 2014-12-29 Microchannel heat exchanger with improvement of dirt-resisting and anti-blocking

Country Status (4)

Country Link
US (1) US20160327342A1 (zh)
EP (1) EP2906892A4 (zh)
CN (1) CN203704716U (zh)
WO (1) WO2015101248A1 (zh)

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CN203704716U (zh) * 2013-12-31 2014-07-09 力博特公司 可改善抗脏堵能力的微通道换热器
CN106595137A (zh) * 2016-12-19 2017-04-26 珠海格力电器股份有限公司 一种蒸发器换热总成及空调机组
JP2018132247A (ja) * 2017-02-15 2018-08-23 富士電機株式会社 自動販売機

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CN102812321A (zh) * 2010-04-09 2012-12-05 英格索尔-兰德公司 成型的微通道热交换器
CN101900459A (zh) * 2010-06-28 2010-12-01 吴植仁 一种微通道平行流换热器
CN103206884A (zh) * 2012-01-16 2013-07-17 三星电子株式会社 集管单元以及具有该集管单元的热交换器
CN203704716U (zh) * 2013-12-31 2014-07-09 力博特公司 可改善抗脏堵能力的微通道换热器

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CN203704716U (zh) 2014-07-09
EP2906892A1 (en) 2015-08-19
US20160327342A1 (en) 2016-11-10
EP2906892A4 (en) 2016-11-02

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