EP2212639A1 - Heat exchangers having baffled manifolds - Google Patents

Heat exchangers having baffled manifolds

Info

Publication number
EP2212639A1
EP2212639A1 EP07839508A EP07839508A EP2212639A1 EP 2212639 A1 EP2212639 A1 EP 2212639A1 EP 07839508 A EP07839508 A EP 07839508A EP 07839508 A EP07839508 A EP 07839508A EP 2212639 A1 EP2212639 A1 EP 2212639A1
Authority
EP
European Patent Office
Prior art keywords
manifold
heat exchanger
fluid
insert
inlet side
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.)
Granted
Application number
EP07839508A
Other languages
German (de)
French (fr)
Other versions
EP2212639A4 (en
EP2212639B1 (en
Inventor
Jules Ricardo Munoz
Alexander Chen
Young K. Park
Parmesh Verma
Salvatore Macri
Tiziano Conti
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.)
Carrier Corp
Original Assignee
Carrier Corp
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 Carrier Corp filed Critical Carrier Corp
Publication of EP2212639A1 publication Critical patent/EP2212639A1/en
Publication of EP2212639A4 publication Critical patent/EP2212639A4/en
Application granted granted Critical
Publication of EP2212639B1 publication Critical patent/EP2212639B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • F25B39/02—Evaporators
    • F25B39/028—Evaporators having distributing means
    • 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
    • F28F9/0202—Header boxes having their inner space divided by partitions
    • F28F9/0204—Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions
    • 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
    • F28F9/026—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits
    • F28F9/027—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits in the form of distribution pipes
    • F28F9/0273—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits in the form of distribution pipes with multiple holes
    • 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
    • F28F9/026—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits
    • F28F9/0278—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits in the form of stacked distribution plates or perforated plates arranged over end plates

Definitions

  • the present disclosure relates to heat exchangers. More particularly, the present disclosure relates to heat exchangers having baffled manifolds.
  • Refrigeration systems are well known in the art and ubiquitous in such industries as food service, chemical, residential and commercial cooling, and automotive. On a larger scale, heat exchangers are required for office buildings and for residential purposes. Lack of efficiency is a great concern with such systems.
  • Traditional refrigeration cycles, or air conditioners include a compressor, a condenser, an expansion valve, an evaporator, and a refrigerant whose evaporation creates the cool temperature.
  • the evaporator and condenser are heat exchangers having a series of parallel channels, which provide parallel refrigerant paths. When the refrigerant passes through the expansion valve, a pressure and temperature drop occurs.
  • the term "maldistribution" of two-phase fluid shall mean that one phase of the fluid (e.g., liquid-phase) predominantly flows through a particular portion of the evaporator, while that the other phase of the fluid (e.g., vapor-phase) predominantly flows through a different portion of the evaporator.
  • a heat exchanger having a plurality of parallel channels in fluid communication with a manifold.
  • the manifold includes a mixing device and one or more baffles that work together to prevent maldistribution of the two- phases of the fluid within the channels.
  • FIG. 1 is a sectional view of an exemplary embodiment of heat exchanger with a manifold having baffles according to the present disclosure
  • FIG. 2 is a close-up view of a first alternate exemplary embodiment of the manifold of FIG. 1 ;
  • FIG. 3 is a close-up view of a second alternate exemplary embodiment of the manifold of FIG. 1 ;
  • FIG. 4 is a sectional view of an alternate exemplary embodiment of a heat exchanger with a manifold according to the present disclosure
  • FIG. 5 is a sectional view of an alternate exemplary embodiment of a heat exchanger with a manifold according to the present disclosure.
  • FIG. 6 illustrates an exemplary embodiment of a refrigeration circuit having a pair of heat exchangers according to the present disclosure.
  • Heat exchanger 10 includes one or more baffles 12 within one or more manifolds 18, 20.
  • baffles 12 are configured to limit the movement of the fluid along an axis (A) of manifold 18, 20, which mitigates separation of the two-phase fluid and ensures uniform distribution within the channels of heat exchanger 10.
  • FIG. 1 illustrates heat exchanger 10 as a multipass heat exchanger having a first pass 14 and a second pass 16.
  • baffles 12 it is contemplated by the present disclosure for baffles 12 to find equal use with any parallel path heat exchanger having more or less than two passes.
  • Heat exchanger 10 includes a first manifold 18 and a second manifold 20 that are in fluid communication with one another by way of a plurality of parallel channels 22.
  • heat exchanger 10 is a micro-channel heat exchanger having a plurality of micro-channels 22.
  • baffles 12 it is contemplated by the present disclosure for baffles 12 to find equal use with any type of parallel path heat exchanger having channels 22 of any desired size.
  • First manifold 18 includes a first partition 24-1 and second manifold 20 includes a second partition 24-2.
  • Partitions 24-1 , 24-2 are configured to separate manifolds 18, 20 and channels 22 into first pass 14 and second pass 16, respectively, along a line 26.
  • Partition 24-1 divides first manifold 18 into an inlet side 28 and an outlet side 30.
  • partition 24-2 divides second manifold 20 into an inlet side 32 and an outlet side 34.
  • Heat exchanger 10 includes a distribution insert 36 within inlet side 28 of first manifold 18. Further, heat exchanger 10 includes a collection insert 38 within outlet side 32 of second manifold 20 and a distribution insert 40 within inlet side 34 of second manifold 20. In the illustrated embodiment, collection insert 38 and distribution insert 40 are shown as one unitary member. However, it is contemplated by the present disclosure for collection and distribution inserts 38, 40 to be separate items.
  • Heat exchanger 10 finds particular use with a fluid 42, such as a refrigerant of a vapor-compression or air conditioning circuit.
  • Fluid 42 can be a single-phase fluid or a two-phase fluid.
  • fluid 42 traveling through heat exchanger 10 can be in a vapor-phase and/or a fiquid-phase.
  • the flow of fluid 26 is represented by one or more directional arrows.
  • Distribution insert 36 includes a plurality of openings 44 defined therein. Openings 44 place distribution insert 36 in fluid communication with inlet side 28 of first manifold 18. Collection insert 38 includes a plurality of openings 46 defined therein. Openings 46 place collection insert 38 in fluid communication with outlet side 32 of second manifold 20. Distribution insert 40 includes a plurality of openings 48 defined therein. Openings 48 place distribution insert 40 in fluid communication with inlet side 34 of second manifold 20.
  • fluid 42 enters heat exchanger 10 through distribution insert 36 within inlet side 28 of first manifold 18.
  • the fluid 42 is prevented from flowing from inlet side 28 to outlet side 30 by partition 24-1. Rather, distribution insert 36 distributes fluid 42 into inlet side 28 of first manifold 18 through openings 44.
  • distribution insert 36 assists in passing fluid 42 in a substantially homogeneous state to inlet side 28 of first manifold 18. More particularly, it has been determined that distribution insert 36 assists in mixing fluid 42 so that the fluid within inlet side 28 of first manifold 18 is a substantially homogeneous mixture of liquid-phase fluid and vapor-phase fluid.
  • Openings 44 are preferably of variable size to effectively mix and distribute fluid 42 flowing into inlet side 28 of first manifold 18. Openings 44 can have a dimension that can be uniform across distribution insert 36, or the dimension of the openings can increase in size in a direction from first pass 14 to second pass 16. For example, openings 44 can increase in dimension further downstream of the fluid flow path can achieve a greater degree of fluid distribution. [0026] Within inlet side 28, baffles 12 are configured to limit the movement of fluid 42 within the inlet side 28 of first manifold 18.
  • baffles 12 assist in mitigating maldistribution of fluid 42 within channels 22 of first pass 14.
  • heat exchanger 10 includes a mixing device, illustrated as distribution insert 36, to effectively mix fluid 42 as the fluid enters inlet side 28 so that both phases of the fluid are in a substantially homogeneous two-phase mixture within inlet side 28.
  • heat exchanger 10 includes one or more baffles 12 (two show) to prevent the fluidic forces within inlet side 28 from separating the two phases from one another and forcing one of the two phases towards partition 24-1. In this manner, baffles 12 ensure that fluid 42 enters channels 22 of first pass 14 in the substantially homogeneous two- phase mixture, which mitigates maldistribution of the fluid within the channels.
  • Fluid 42 enters channels 22 from inlet side 28 of first manifold 18, flows through the channels and exits the channels into outlet side 32 of second manifold 20.
  • fluid 42 is prevented from flowing directly to inlet side 34 of second manifold 20 by partition 24-2.
  • fluid 42 flows from outlet side 32 to collection insert 38 through openings 46. Then, fluid 42 flows from collection insert 38 to distribution insert 40. In this manner, fluid 42 flows from first pass 14 across line 26 into second pass 16. Next, fluid 42 flows from distribution insert 40 through openings 48 into inlet side 34 of second manifold 20.
  • collection insert 38 and/or distribution insert 40 assists in passing fluid 42 in a substantially homogeneous two-phase state to inlet side 34 of second manifold 20. More specifically, collection insert 38 and distribution insert 40 each mix fluid 42 as the fluid passes therethrough.
  • Baffles 12 within second manifold 20 are configured to limit the movement of fluid 42 within inlet side 34 along the axis (A) of the second manifold. Thus, baffles 12 can also assist in mitigating maldistribution of fluid 42 within channels 22 of second pass 16.
  • Fluid 42 enters channels 22 from inlet side 34 of second manifold 20, flows through the channels and exits the channels into outlet side 30 of first manifold 18.
  • fluid 42 flows out of the heat exchanger.
  • heat exchanger 10 it is contemplated by the present disclosure for heat exchanger 10 to have more than two passes 14, 16, such that fluid 42 flowing from second manifold 20 can enter a third pass (not shown) of channels.
  • FIG. 2 An alternate embodiment of heat exchanger 10 having baffles 12 is shown in FIG. 2. For purposes of clarity, only relevant portions of heat exchanger 10 are shown.
  • openings 44 in distribution insert 36 are illustrated directing fluid 42 in a direction substantially perpendicular (e.g., about ninety degrees) to the direction of flow through channels 22.
  • distribution insert 36 is illustrated in FIG. 1 having openings 44 directing fluid 42 in a direction substantially parallel (e.g., about zero degrees) to the direction of flow through channels 22.
  • heat exchanger 10 it is contemplated by the present disclosure for heat exchanger 10 to have distribution insert 36 with openings 44 at any desired angle with respect to the direction of flow through channels 22.
  • heat exchanger 10 it is contemplated for heat exchanger 10 to have distribution insert 36 with openings 44 at an angle such as zero degrees (FIG. 1), ninety degrees (FIG. 2), and angle there between, as well as any angle more than ninety degrees.
  • the angle of openings 44 to differ from one another such that some openings may have one angle, while other openings have a different angle.
  • distribution insert 36 is shown as a closed ended tube having an end-cap 50 adjacent partition 24-1
  • the embodiment of distribution insert 36 shown in FIG. 1 is illustrated as an open ended tube connected to partition 24-1.
  • distribution insert 36 is defined by a first wall 52 and a second wall 54, where the first wall is independent of first manifold 18, but the second wall is common with the first manifold. Further, distribution insert 36 is defined by partition 24-1. In contrast, the embodiments of distribution insert 36 shown in FIGS. 1 and 2 have no walls in common with first manifold 18.
  • heat exchanger 10 includes distributing inserts 36 and 40 as described with respect to the embodiment of FIG. 1.
  • heat exchanger 10 lacks collection insert 38 within outlet side 32 of second manifold 20 as in FlG. 1.
  • heat exchanger 10 illustrated in FIG. 4 includes an external collection-distributor 56.
  • External collection-distributor 56 is in fluid communication with outlet side 32 of second manifold 20 via one or more ports 58 (only one shown). Further, external collection-distributor 56 is in fluid communication with inlet side 34 of second manifold 20 via one or more ports 60 (three shown).
  • fluid 42 enters channels 22 from inlet side 28 of first manifold 18, flows through the channels and exits the channels into outlet side 32 of second manifold 20.
  • fluid 42 is prevented from flowing directly to inlet side 34 of second manifold 20 by partition 24-2.
  • fluid 42 flows from outlet side 32 to external collection- distributor 56 through openings 58.
  • fluid 42 flows through external collection-distributor 56 from first pass 14 across line 26 into second pass 16.
  • fluid 42 flows from external collection-distributor 56 through openings 60 into distribution insert 40, which further mixes fluid 42 as the fluid flows from the distribution insert through openings 48 into inlet side 34 of second manifold 20.
  • baffles 12 within second manifold 20 are configured to limit the movement of fluid 42 along axis A of the second manifold.
  • baffles 12 can also assist in mitigating maldistribution of fluid 42 within channels 22 of second pass 16.
  • External collection-distributor 56 assists in passing fluid 42 in a substantially homogeneous state to inlet side 34 of second manifold 20.
  • the combination of external collection-distributor 56 along with distribution insert 40 adds an additional mixing stage as compared to the embodiment of FIG. 1.
  • external collection-distributor 56 includes a first portion 62 within first pass 14 (i.e., to the left of line 26) and a second portion 64 within second pass 16 (i.e., to the right of line 26).
  • first portion 62 functions in a manner similar to collection insert 38 of FIG. 1
  • second portion 64 functions in a manner similar to distribution insert 40 of FIG. 1. Since the embodiment of FIG. 4 includes first portion 62, second portion 64, and distribution insert 40, this embodiment of heat exchanger 10 provides one additional mixing stage of fluid 42 as compared to the embodiment of FIG. 1.
  • FIG. 5 another embodiment of heat exchanger 10 is shown.
  • first manifold 18 includes inlet port 66 and outlet port 68 that are configured so that the flow of fluid 42 is in a direction substantially parallel (e.g., about zero degrees) to the flow of fluid through channels 22.
  • heat exchanger 10 illustrated in FIG. 1 having ports 66, 68 directing fluid 42 in a direction substantially perpendicular (e.g., about ninety degrees) to the direction of flow through channels 22.
  • ports 66, 68 at any desired angle with respect to the direction of flow through channels 22.
  • heat exchanger 10 to have one or both ports 66, 68 at an angle selected from the group consisting of zero degrees, ninety degrees, and any combinations thereof.
  • first manifold 18 includes collection insert 38 within outlet side 30 of the first manifold. Collection insert 38 within outlet side 30 of first manifold 18 functions as described with respect to collection insert 38 within outlet side 32 of second manifold 20 of the embodiment of FIG. 1. Accordingly, heat exchanger 10 in the embodiment of FIG. 5 provides for additional mixing of fluid 42 before the fluid exits the heat exchanger.
  • heat exchanger 10 includes a second collection-distributor 70 at second manifold 20.
  • Second collection- distributor 70 is in fluid communication with collection insert 38 via one or more (only one shown) openings 72 and with distributing insert 40 via one or more (only one shown) openings 74.
  • partition 24-2 includes an extension 76 preventing direction fluid communication between collection insert 38 and distributing insert 40.
  • heat exchanger 10 finds use in any refrigeration circuit.
  • heat exchanger 10 is shown in use in a refrigeration circuit 80.
  • refrigeration circuit 80 has an evaporator 82 and a condenser 84.
  • heat exchanger 10 can find use as evaporator 82, as condenser 84, or both.
  • Heat exchanger 10 can be arranged within circuit 80 so that the plurality of channels 22 are arranged in any desired manner.
  • heat exchanger 10 can be arranged within circuit 80 so that channels 22 are vertically arranged. In this manner, heat exchanger 10 can be arranged within circuit 80 so that refrigerant 42 flows through the channels in an up-and-down manner.
  • heat exchanger 10 can be arranged within circuit 80 so that channels 22 are horizontally arranged. In this manner, heat exchanger 10 can be arranged within circuit 80 so that refrigerant flows through channels 22 in a side-to-side manner.
  • Circuit 80 can find use in any vapor-compression device such as, but not limited to, an air conditioner, a heat pump, a dehumidifier, a refrigerator, a freezer, and others.
  • circuit 80 can find use in an air conditioner in a vehicle such as, but not limited to, an automobile, a truck, a ship, an airplane, and other mobile vehicles.
  • circuit 80 can find use in an air conditioner in a stationary conditioning device such as that used in a refrigerator, freezer, home air conditioner, or commercial air conditioner, a chiller unit, and others.
  • heat exchanger 10 includes parallel channels 22 in fluid communication with one another via a pair of manifolds 18, 20.
  • One or more of the manifolds can include mixing devices (e.g., inserts 36, 38, 40, 56, 70) to keep fluid 42 passing through heat exchanger 10 in a substantially uniform two-phase mixture.
  • heat exchanger 10 also includes one or more baffles 12 within one or more of the manifolds 18, 20. The baffles 12 prevent movement of fluid 22 along the axis of the manifolds 18, 20 so that fluid 42 remains in the uniform two-phase mixture when entering channels 22.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)

Abstract

A heat exchanger for a fluid having a vapor-phase and a liquid-phase is provided. The heat exchanger includes a first manifold, a second manifold, a plurality of parallel channels, a mixing device, and one or more baffles. The parallel channels are in fluid communication with the first and second manifolds. The mixing device mixes the fluid flowing into the first manifold so that the fluid is a substantially homogeneous two-phase mixture of the vapor and liquid phases. The baffles are within the first manifold and ensure that the fluid enters the parallel channels as the substantially homogeneous two- phase mixture.

Description

HEAT EXCHANGERS HAVING BAFFLED MANIFOLDS
BACKGROUND OF THE INVENTION
1. Field of the Invention
[0001]The present disclosure relates to heat exchangers. More particularly, the present disclosure relates to heat exchangers having baffled manifolds.
2. Description of Prior Art
[0002] Refrigeration systems are well known in the art and ubiquitous in such industries as food service, chemical, residential and commercial cooling, and automotive. On a larger scale, heat exchangers are required for office buildings and for residential purposes. Lack of efficiency is a great concern with such systems.
[0003] Traditional refrigeration cycles, or air conditioners, include a compressor, a condenser, an expansion valve, an evaporator, and a refrigerant whose evaporation creates the cool temperature. In some refrigeration systems, the evaporator and condenser are heat exchangers having a series of parallel channels, which provide parallel refrigerant paths. When the refrigerant passes through the expansion valve, a pressure and temperature drop occurs.
[0004] In many refrigerant vapor-compression systems, as the refrigerant passes through the expansion valve, a portion of the fluid expands to a vapor- phase, while a second portion of the fluid remains in a liquid-phase. The resulting two-phase fluid can cause maldistribution in the evaporator. As used herein, the term "maldistribution" of two-phase fluid shall mean that one phase of the fluid (e.g., liquid-phase) predominantly flows through a particular portion of the evaporator, while that the other phase of the fluid (e.g., vapor-phase) predominantly flows through a different portion of the evaporator. [0005] It has been determined by the present disclosure that maldistribution of the two-phase fluid is a common problem with heat exchangers that use parallel refrigerant paths, resulting in poor heat exchanger efficiency. For heat exchangers that have relatively few parallel refrigerant paths (typically 20 or less), even distribution of the two-phase fluid is achieved through a distribution device that individually feeds each parallel refrigerant path. However, for heat exchanges with many parallel refrigerant paths (typically more than 20), individual distribution to each parallel refrigerant path is often not practical. In most cases, a simple inlet header is used, which can lead to significant refrigerant maldistribution to the heat exchanger. Additionally, gravity and the increase in overall volume as the flow transitions from the expansion device to the inlet header also act to cause the liquid-phase and vapor-phase to separate, causing maldistribution to the heat exchanger.
[0006] Previously, it has been proposed by U.S. Patent No. 7,143,605 to include a distributor tube positioned within the inlet manifold to reduce maldistribution. While the distributor tube has proven to be helpful to reduce maldistribution, the maldistribution of the liquid-phase and vapor-phase within the heat exchanger remains problematic.
[0007] Therefore, there exists a need for heat exchangers that overcome, alleviate, and/or mitigate one or more of the aforementioned and other deleterious effects of prior art heat exchangers.
SUMMARY OF THE INVENTION
[0008] A heat exchanger having a plurality of parallel channels in fluid communication with a manifold. The manifold includes a mixing device and one or more baffles that work together to prevent maldistribution of the two- phases of the fluid within the channels. [0009]The above-described and other features and advantages of the present disclosure will .be appreciated and understood by those skilled in the art from the following detailed description, drawings, and appended claims.
BRIEF DESCRIPTION OF THE DRAWINGS
[0010] FIG. 1 is a sectional view of an exemplary embodiment of heat exchanger with a manifold having baffles according to the present disclosure;
[0011]FIG. 2 is a close-up view of a first alternate exemplary embodiment of the manifold of FIG. 1 ;
[0012] FIG. 3 is a close-up view of a second alternate exemplary embodiment of the manifold of FIG. 1 ;
[0013] FIG. 4 is a sectional view of an alternate exemplary embodiment of a heat exchanger with a manifold according to the present disclosure;
[0014] FIG. 5 is a sectional view of an alternate exemplary embodiment of a heat exchanger with a manifold according to the present disclosure; and
[0015] FIG. 6 illustrates an exemplary embodiment of a refrigeration circuit having a pair of heat exchangers according to the present disclosure.
DETAILED DESCRIPTION OF THE INVENTION
[0016] Referring now to the figures and in particular to FIG. 1 , an exemplary embodiment of parallel path heat exchanger according to the present disclosure is shown and is generally referred to by reference numeral 10. Heat exchanger 10 includes one or more baffles 12 within one or more manifolds 18, 20. Advantageously, baffles 12 are configured to limit the movement of the fluid along an axis (A) of manifold 18, 20, which mitigates separation of the two-phase fluid and ensures uniform distribution within the channels of heat exchanger 10. [0017] For purposes of clarity, FIG. 1 illustrates heat exchanger 10 as a multipass heat exchanger having a first pass 14 and a second pass 16. Of course, it is contemplated by the present disclosure for baffles 12 to find equal use with any parallel path heat exchanger having more or less than two passes.
[0018] Heat exchanger 10 includes a first manifold 18 and a second manifold 20 that are in fluid communication with one another by way of a plurality of parallel channels 22. In the illustrated embodiment, heat exchanger 10 is a micro-channel heat exchanger having a plurality of micro-channels 22. However, it is contemplated by the present disclosure for baffles 12 to find equal use with any type of parallel path heat exchanger having channels 22 of any desired size.
[0019] First manifold 18 includes a first partition 24-1 and second manifold 20 includes a second partition 24-2. Partitions 24-1 , 24-2 are configured to separate manifolds 18, 20 and channels 22 into first pass 14 and second pass 16, respectively, along a line 26. Partition 24-1 divides first manifold 18 into an inlet side 28 and an outlet side 30. Similarly, partition 24-2 divides second manifold 20 into an inlet side 32 and an outlet side 34.
[0020] Heat exchanger 10 includes a distribution insert 36 within inlet side 28 of first manifold 18. Further, heat exchanger 10 includes a collection insert 38 within outlet side 32 of second manifold 20 and a distribution insert 40 within inlet side 34 of second manifold 20. In the illustrated embodiment, collection insert 38 and distribution insert 40 are shown as one unitary member. However, it is contemplated by the present disclosure for collection and distribution inserts 38, 40 to be separate items.
[0021] Heat exchanger 10 finds particular use with a fluid 42, such as a refrigerant of a vapor-compression or air conditioning circuit. Fluid 42 can be a single-phase fluid or a two-phase fluid. Thus, fluid 42 traveling through heat exchanger 10 can be in a vapor-phase and/or a fiquid-phase. In the illustrated embodiment, the flow of fluid 26 is represented by one or more directional arrows.
[0022] Distribution insert 36 includes a plurality of openings 44 defined therein. Openings 44 place distribution insert 36 in fluid communication with inlet side 28 of first manifold 18. Collection insert 38 includes a plurality of openings 46 defined therein. Openings 46 place collection insert 38 in fluid communication with outlet side 32 of second manifold 20. Distribution insert 40 includes a plurality of openings 48 defined therein. Openings 48 place distribution insert 40 in fluid communication with inlet side 34 of second manifold 20.
[0023] During use, fluid 42 enters heat exchanger 10 through distribution insert 36 within inlet side 28 of first manifold 18. The fluid 42 is prevented from flowing from inlet side 28 to outlet side 30 by partition 24-1. Rather, distribution insert 36 distributes fluid 42 into inlet side 28 of first manifold 18 through openings 44.
[0024] It has been determined by the present disclosure that distribution insert 36 assists in passing fluid 42 in a substantially homogeneous state to inlet side 28 of first manifold 18. More particularly, it has been determined that distribution insert 36 assists in mixing fluid 42 so that the fluid within inlet side 28 of first manifold 18 is a substantially homogeneous mixture of liquid-phase fluid and vapor-phase fluid.
[0025] Openings 44 are preferably of variable size to effectively mix and distribute fluid 42 flowing into inlet side 28 of first manifold 18. Openings 44 can have a dimension that can be uniform across distribution insert 36, or the dimension of the openings can increase in size in a direction from first pass 14 to second pass 16. For example, openings 44 can increase in dimension further downstream of the fluid flow path can achieve a greater degree of fluid distribution. [0026] Within inlet side 28, baffles 12 are configured to limit the movement of fluid 42 within the inlet side 28 of first manifold 18. More specifically, and without wishing to be bound by any particular theory, it has been determined by the present disclosure that the liquid and vapor phases of fluid 42 can be separated by the fluidic forces within heat exchanger 10 such that these forces can cause one of the two phases to be forced towards partition 24-1. This movement of fluid 42 along the axis of first manifold 18 towards partition 24-1 can be limited by baffles 12. Thus, baffles 12 assist in mitigating maldistribution of fluid 42 within channels 22 of first pass 14.
[0027] In sum, heat exchanger 10 includes a mixing device, illustrated as distribution insert 36, to effectively mix fluid 42 as the fluid enters inlet side 28 so that both phases of the fluid are in a substantially homogeneous two-phase mixture within inlet side 28. Further, heat exchanger 10 includes one or more baffles 12 (two show) to prevent the fluidic forces within inlet side 28 from separating the two phases from one another and forcing one of the two phases towards partition 24-1. In this manner, baffles 12 ensure that fluid 42 enters channels 22 of first pass 14 in the substantially homogeneous two- phase mixture, which mitigates maldistribution of the fluid within the channels.
[0028] Fluid 42 enters channels 22 from inlet side 28 of first manifold 18, flows through the channels and exits the channels into outlet side 32 of second manifold 20. Here, fluid 42 is prevented from flowing directly to inlet side 34 of second manifold 20 by partition 24-2.
[0029] Rather, fluid 42 flows from outlet side 32 to collection insert 38 through openings 46. Then, fluid 42 flows from collection insert 38 to distribution insert 40. In this manner, fluid 42 flows from first pass 14 across line 26 into second pass 16. Next, fluid 42 flows from distribution insert 40 through openings 48 into inlet side 34 of second manifold 20.
[003O] It has been determined by the present disclosure that collection insert 38 and/or distribution insert 40 assists in passing fluid 42 in a substantially homogeneous two-phase state to inlet side 34 of second manifold 20. More specifically, collection insert 38 and distribution insert 40 each mix fluid 42 as the fluid passes therethrough.
[0031] Baffles 12 within second manifold 20 are configured to limit the movement of fluid 42 within inlet side 34 along the axis (A) of the second manifold. Thus, baffles 12 can also assist in mitigating maldistribution of fluid 42 within channels 22 of second pass 16.
[0032] Fluid 42 enters channels 22 from inlet side 34 of second manifold 20, flows through the channels and exits the channels into outlet side 30 of first manifold 18. In the illustrated embodiment where heat exchanger 10 is a two- pass exchanger, fluid 42 flows out of the heat exchanger. However, it is contemplated by the present disclosure for heat exchanger 10 to have more than two passes 14, 16, such that fluid 42 flowing from second manifold 20 can enter a third pass (not shown) of channels.
[0033]An alternate embodiment of heat exchanger 10 having baffles 12 is shown in FIG. 2. For purposes of clarity, only relevant portions of heat exchanger 10 are shown. Here, openings 44 in distribution insert 36 are illustrated directing fluid 42 in a direction substantially perpendicular (e.g., about ninety degrees) to the direction of flow through channels 22. By way of contrast, distribution insert 36 is illustrated in FIG. 1 having openings 44 directing fluid 42 in a direction substantially parallel (e.g., about zero degrees) to the direction of flow through channels 22.
[0034]As such, it is contemplated by the present disclosure for heat exchanger 10 to have distribution insert 36 with openings 44 at any desired angle with respect to the direction of flow through channels 22. For example, it is contemplated for heat exchanger 10 to have distribution insert 36 with openings 44 at an angle such as zero degrees (FIG. 1), ninety degrees (FIG. 2), and angle there between, as well as any angle more than ninety degrees. Furthermore, it is contemplated for the angle of openings 44 to differ from one another such that some openings may have one angle, while other openings have a different angle. [0035]Also shown in the embodiment of FIG. 2, distribution insert 36 is shown as a closed ended tube having an end-cap 50 adjacent partition 24-1 , whereas the embodiment of distribution insert 36 shown in FIG. 1 is illustrated as an open ended tube connected to partition 24-1.
[0036] Referring now to FIG. 3, another exemplary embodiment of heat exchanger 10 having baffles 12 is shown. Again, only the relevant portions of heat exchanger 10 are shown. Here, distribution insert 36 is defined by a first wall 52 and a second wall 54, where the first wall is independent of first manifold 18, but the second wall is common with the first manifold. Further, distribution insert 36 is defined by partition 24-1. In contrast, the embodiments of distribution insert 36 shown in FIGS. 1 and 2 have no walls in common with first manifold 18.
[0037] Referring now to FIG. 4, still another exemplary embodiment of heat exchanger 10 having baffles 12 is shown. In this embodiment, heat exchanger 10 includes distributing inserts 36 and 40 as described with respect to the embodiment of FIG. 1. However, in this embodiment, heat exchanger 10 lacks collection insert 38 within outlet side 32 of second manifold 20 as in FlG. 1. Rather, heat exchanger 10 illustrated in FIG. 4 includes an external collection-distributor 56.
[0038] External collection-distributor 56 is in fluid communication with outlet side 32 of second manifold 20 via one or more ports 58 (only one shown). Further, external collection-distributor 56 is in fluid communication with inlet side 34 of second manifold 20 via one or more ports 60 (three shown).
[0039] In this manner, fluid 42 enters channels 22 from inlet side 28 of first manifold 18, flows through the channels and exits the channels into outlet side 32 of second manifold 20. Here, fluid 42 is prevented from flowing directly to inlet side 34 of second manifold 20 by partition 24-2. [0040] Rather, fluid 42 flows from outlet side 32 to external collection- distributor 56 through openings 58. Then, fluid 42 flows through external collection-distributor 56 from first pass 14 across line 26 into second pass 16. Next, fluid 42 flows from external collection-distributor 56 through openings 60 into distribution insert 40, which further mixes fluid 42 as the fluid flows from the distribution insert through openings 48 into inlet side 34 of second manifold 20. As discussed above, baffles 12 within second manifold 20 are configured to limit the movement of fluid 42 along axis A of the second manifold. Thus, baffles 12 can also assist in mitigating maldistribution of fluid 42 within channels 22 of second pass 16.
[0041] External collection-distributor 56 assists in passing fluid 42 in a substantially homogeneous state to inlet side 34 of second manifold 20. The combination of external collection-distributor 56 along with distribution insert 40 adds an additional mixing stage as compared to the embodiment of FIG. 1. Specifically, external collection-distributor 56 includes a first portion 62 within first pass 14 (i.e., to the left of line 26) and a second portion 64 within second pass 16 (i.e., to the right of line 26). Here, first portion 62 functions in a manner similar to collection insert 38 of FIG. 1 , while second portion 64 functions in a manner similar to distribution insert 40 of FIG. 1. Since the embodiment of FIG. 4 includes first portion 62, second portion 64, and distribution insert 40, this embodiment of heat exchanger 10 provides one additional mixing stage of fluid 42 as compared to the embodiment of FIG. 1.
[0042] Referring now to FIG. 5, another embodiment of heat exchanger 10 is shown.
[0043] In this embodiment, first manifold 18 includes inlet port 66 and outlet port 68 that are configured so that the flow of fluid 42 is in a direction substantially parallel (e.g., about zero degrees) to the flow of fluid through channels 22. By way of contrast, heat exchanger 10 illustrated in FIG. 1 having ports 66, 68 directing fluid 42 in a direction substantially perpendicular (e.g., about ninety degrees) to the direction of flow through channels 22. Furthermore, it is contemplated by the present disclosure for heat exchanger 10 to have ports 66, 68 at any desired angle with respect to the direction of flow through channels 22. For example, it is contemplated for heat exchanger 10 to have one or both ports 66, 68 at an angle selected from the group consisting of zero degrees, ninety degrees, and any combinations thereof.
[0044] Also illustrated in this embodiment, first manifold 18 includes collection insert 38 within outlet side 30 of the first manifold. Collection insert 38 within outlet side 30 of first manifold 18 functions as described with respect to collection insert 38 within outlet side 32 of second manifold 20 of the embodiment of FIG. 1. Accordingly, heat exchanger 10 in the embodiment of FIG. 5 provides for additional mixing of fluid 42 before the fluid exits the heat exchanger.
[0045] Also illustrated in this embodiment, heat exchanger 10 includes a second collection-distributor 70 at second manifold 20. Second collection- distributor 70 is in fluid communication with collection insert 38 via one or more (only one shown) openings 72 and with distributing insert 40 via one or more (only one shown) openings 74. In addition, partition 24-2 includes an extension 76 preventing direction fluid communication between collection insert 38 and distributing insert 40. Thus, heat exchanger 10 in the embodiment of FIG. 5 provides for additional mixing stages within second manifold 20 as compared to the embodiment of FIG. 1.
[0046] Advantageously, heat exchanger 10 finds use in any refrigeration circuit. For example, and referring now to FIG. 6, heat exchanger 10 is shown in use in a refrigeration circuit 80. Here, refrigeration circuit 80 has an evaporator 82 and a condenser 84. Advantageously, heat exchanger 10 can find use as evaporator 82, as condenser 84, or both.
[0047] Heat exchanger 10 can be arranged within circuit 80 so that the plurality of channels 22 are arranged in any desired manner. In some embodiments, heat exchanger 10 can be arranged within circuit 80 so that channels 22 are vertically arranged. In this manner, heat exchanger 10 can be arranged within circuit 80 so that refrigerant 42 flows through the channels in an up-and-down manner. In other embodiments, heat exchanger 10 can be arranged within circuit 80 so that channels 22 are horizontally arranged. In this manner, heat exchanger 10 can be arranged within circuit 80 so that refrigerant flows through channels 22 in a side-to-side manner.
[0048] Circuit 80 can find use in any vapor-compression device such as, but not limited to, an air conditioner, a heat pump, a dehumidifier, a refrigerator, a freezer, and others. For example, circuit 80 can find use in an air conditioner in a vehicle such as, but not limited to, an automobile, a truck, a ship, an airplane, and other mobile vehicles. Further, circuit 80 can find use in an air conditioner in a stationary conditioning device such as that used in a refrigerator, freezer, home air conditioner, or commercial air conditioner, a chiller unit, and others.
[0049] As described herein, heat exchanger 10 includes parallel channels 22 in fluid communication with one another via a pair of manifolds 18, 20. One or more of the manifolds can include mixing devices (e.g., inserts 36, 38, 40, 56, 70) to keep fluid 42 passing through heat exchanger 10 in a substantially uniform two-phase mixture. Advantageously, heat exchanger 10 also includes one or more baffles 12 within one or more of the manifolds 18, 20. The baffles 12 prevent movement of fluid 22 along the axis of the manifolds 18, 20 so that fluid 42 remains in the uniform two-phase mixture when entering channels 22.
[005O] It should also be noted that the terms "first", "second", "third", "upper", "lower", and the like may be used herein to modify various elements. These modifiers do not imply a spatial, sequential, or hierarchical order to the modified elements unless specifically stated.
[0051] While the instant disclosure has been described with reference to one or more exemplary embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope thereof. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the disclosure without departing from the scope thereof. Therefore, it is intended that the disclosure not be limited to the particular embodiment(s) disclosed as the best mode contemplated for carrying out the apparatus in present disclosure, but that the disclosed apparatus will include all embodiments falling within the scope of the disclosure.

Claims

CLAIMSWhat is claimed is:
1. A heat exchanger for a fluid having a vapor-phase and a liquid- phase, comprising:
a first manifold;
a second manifold;
a plurality of parallel channels being in fluid communication with said first and second manifolds;
a mixing device being configured to mix the fluid flowing into said first manifold so that the fluid is a substantially homogeneous two-phase mixture of the vapor and liquid phases; and
one or more baffles within said first manifold, said one or more baffles being configured to ensure that the fluid enters said plurality of parallel channels as the substantially homogeneous two-phase mixture.
2. The heat exchanger as in claim 1 , wherein the mixing device comprises a distributing insert being disposed within said first manifold.
3. The heat exchanger as in claim 2, wherein said distributing insert comprises a plurality of openings having a selected angle with respect to a fluid flow direction through said plurality of parallel channels.
4. The heat exchanger as in claim 1 , further comprising a first partition defined within said first manifold so that said plurality of parallel channels define a first pass in fluid communication with an inlet side of said first manifold and a second pass in fluid communication with an outlet side of said first manifold. •
5. The heat exchanger as in claim 4, further comprising a second partition defined within said second manifold so that said first pass is in fluid communication with an inlet side of said second manifold and said second pass is in fluid communication with an outlet side of said second manifold, said inlet and outlet sides of said second manifold being in fluid communication.
6. The heat exchanger as in claim 5, further comprising:
a second distribution insert within said outlet side of said second manifold, said second distribution insert being configured to mix the fluid flowing into said outlet side of said second manifold from said inlet side of said second manifold so that the fluid is the substantially homogeneous two-phase mixture; and
one or more second baffles within said outlet side of said second manifold, said one or more baffles being configured to ensure that the fluid enters said plurality of parallel channels of said second pass as the substantially homogeneous two-phase mixture.
7. The heat exchanger as in claim 6, further comprising a collection insert within said inlet side of said second manifold, said collection insert configured to mix the fluid flowing from said inlet side of said second manifold to form the substantially homogeneous two-phase mixture, said collection insert being in fluid communication with said second distribution insert.
8. The heat exchanger as in claim 5, further comprising a collection insert being configured to mix the fluid flowing from said inlet side of said second manifold to form the substantially homogeneous two-phase mixture.
9. The heat exchanger as in claim 8, wherein said collection insert is external to said second manifold.
10. The heat exchanger as in claim 8, wherein said collection insert is internal to said second manifold.
11. The heat exchanger as in claim 10, further comprising a second collection-distributor placing said collection insert in fluid communication with said second distribution insert.
12. The heat exchanger as in claim 1 , wherein said first manifold comprises an inlet side divided along an axis from an outlet side by a first partition and wherein said plurality of parallel channels comprises a first pass of parallel channels being in fluid communication with said inlet side of said first manifold and said second manifold and a second pass of parallel channels being in fluid communication with said outlet side of said first manifold and said second manifold.
13. The heat exchanger as in claim 12, wherein said mixing device comprises a distribution insert within said inlet side of said first manifold, said distribution insert comprising a plurality of openings being configured to mix the fluid flowing into said inlet side of said first manifold so that the fluid is a substantially homogeneous two-phase mixture of the vapor and liquid phases.
14. The heat exchanger as in claim 13, wherein said one or more baffles are within said inlet side of said first manifold.
15. The heat exchanger as in claim 13, wherein said distribution insert comprises a plurality of openings having a dimension that is uniform across said distribution insert.
16. The heat exchanger as in claim 13, wherein said distribution insert comprises a plurality of openings having a dimension that increase in size in a direction from said first pass to said second pass.
17. The heat exchanger as in claim 13, wherein said distribution insert comprises no walls in common with said first manifold.
18. The heat exchanger as in claim 13, wherein said distribution insert comprises a first wall independent of said first manifold and a second wall common with said first manifold.
19. The heat exchanger as in claim 12, wherein said second manifold comprises: an inlet side divided along said axis from an outlet side by a second partition;
a second distribution insert within said outlet side of said second manifold, said second distribution insert being configured to mix the fluid flowing into said outlet side of said second manifold from said inlet side of said second manifold so that the fluid is the substantially homogeneous two-phase mixture; and
one or more second baffles within said outlet side of said second manifold being configured to prevent movement of the fluid within said outlet side of said second manifold along said axis.
20. The heat exchanger as in claim 19, further comprising a collection insert being configured to mix the fluid flowing from said inlet side of said second manifold to form the substantially homogeneous two-phase mixture, said collection insert being in fluid communication with said second distribution insert.
21. The heat exchanger as in claim 20, wherein said collection insert is internal or external to said second manifold.
22. The heat exchanger as in claim 1 , wherein said first manifold comprises an inlet port and an outlet port, said inlet and outlet ports being configured so that flow of the fluid through said inlet and outlet ports is in a direction substantially parallel to flow of the fluid through said plurality of parallel channels.
23. The heat exchanger as in claim 1 , wherein said first manifold comprises an inlet port and an outlet port, said inlet and outlet ports being configured so that flow of the fluid through said inlet and outlet ports is in a direction substantially perpendicular to flow of the fluid through said plurality of parallel channels.
24. The heat exchanger as in claim 1 , wherein the heat exchanger finds use in a refrigeration circuit.
25. The heat exchanger as in claim 24, wherein said plurality of parallel channels are vertically arranged.
26. The heat exchanger as in claim 24, wherein said plurality of parallel channels are horizontally arranged.
EP07839508.4A 2007-10-12 2007-10-12 Heat exchanger having baffled manifolds Not-in-force EP2212639B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2007/021858 WO2009048451A1 (en) 2007-10-12 2007-10-12 Heat exchangers having baffled manifolds

Publications (3)

Publication Number Publication Date
EP2212639A1 true EP2212639A1 (en) 2010-08-04
EP2212639A4 EP2212639A4 (en) 2011-02-23
EP2212639B1 EP2212639B1 (en) 2016-08-31

Family

ID=40549433

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07839508.4A Not-in-force EP2212639B1 (en) 2007-10-12 2007-10-12 Heat exchanger having baffled manifolds

Country Status (6)

Country Link
US (1) US20100206535A1 (en)
EP (1) EP2212639B1 (en)
CN (1) CN101821577B (en)
DK (1) DK2212639T3 (en)
ES (1) ES2589319T3 (en)
WO (1) WO2009048451A1 (en)

Families Citing this family (62)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102027308A (en) * 2008-05-16 2011-04-20 开利公司 Microchannel heat exchanger with enhanced refrigerant distribution
WO2015142615A1 (en) * 2014-03-18 2015-09-24 Carrier Corporation Microchannel heat exchanger evaporator
US9267737B2 (en) 2010-06-29 2016-02-23 Johnson Controls Technology Company Multichannel heat exchangers employing flow distribution manifolds
US9151540B2 (en) 2010-06-29 2015-10-06 Johnson Controls Technology Company Multichannel heat exchanger tubes with flow path inlet sections
ITMI20100249U1 (en) * 2010-07-16 2012-01-17 Alfa Laval Corp Ab HEAT EXCHANGE DEVICE WITH REFRIGERANT FLUID DISTRIBUTION SYSTEM
JP5740134B2 (en) * 2010-10-25 2015-06-24 株式会社ケーヒン・サーマル・テクノロジー Evaporator
JP5736164B2 (en) * 2010-12-13 2015-06-17 株式会社ケーヒン・サーマル・テクノロジー Evaporator
AU2012208123B2 (en) * 2011-01-21 2015-05-07 Daikin Industries, Ltd. Heat exchanger and air conditioner
KR101372096B1 (en) * 2011-11-18 2014-03-07 엘지전자 주식회사 A heat exchanger
JP5376010B2 (en) * 2011-11-22 2013-12-25 ダイキン工業株式会社 Heat exchanger
US9551540B2 (en) * 2011-11-22 2017-01-24 Daikin Industries, Ltd. Heat exchanger
JP6075956B2 (en) * 2012-01-31 2017-02-08 株式会社ケーヒン・サーマル・テクノロジー Evaporator
JP6002421B2 (en) * 2012-04-03 2016-10-05 株式会社ケーヒン・サーマル・テクノロジー Heat exchanger
WO2013160956A1 (en) * 2012-04-26 2013-10-31 三菱電機株式会社 Heat-exchanger header and heat exchanger provided therewith
KR101826365B1 (en) * 2012-05-04 2018-03-22 엘지전자 주식회사 A heat exchanger
KR101878317B1 (en) * 2012-05-22 2018-07-16 한온시스템 주식회사 Evaporator
KR101409196B1 (en) * 2012-05-22 2014-06-19 한라비스테온공조 주식회사 Evaporator
KR101457585B1 (en) * 2012-05-22 2014-11-03 한라비스테온공조 주식회사 Evaporator
US9115938B2 (en) 2012-06-20 2015-08-25 Hamilton Sundstrand Corporation Two-phase distributor
US20140123696A1 (en) * 2012-11-02 2014-05-08 Hongseong KIM Air conditioner and evaporator inlet header distributor therefor
KR20140116626A (en) * 2013-03-25 2014-10-06 엘지전자 주식회사 A heat exchanger
JP6140514B2 (en) * 2013-04-23 2017-05-31 株式会社ケーヒン・サーマル・テクノロジー Evaporator and vehicle air conditioner using the same
JP6213004B2 (en) * 2013-07-18 2017-10-18 株式会社デンソー Refrigerant evaporator
JP6131705B2 (en) * 2013-05-10 2017-05-24 株式会社デンソー Refrigerant evaporator
CN105190201B (en) * 2013-05-10 2017-07-04 株式会社电装 Refrigerant evaporator
JP5761252B2 (en) * 2013-05-22 2015-08-12 ダイキン工業株式会社 Heat exchanger
JP5741657B2 (en) 2013-09-11 2015-07-01 ダイキン工業株式会社 Heat exchanger and air conditioner
JP5741658B2 (en) * 2013-09-11 2015-07-01 ダイキン工業株式会社 Heat exchanger and air conditioner
JP6098451B2 (en) * 2013-09-11 2017-03-22 ダイキン工業株式会社 Heat exchanger and air conditioner
JP6179399B2 (en) * 2013-12-27 2017-08-16 ダイキン工業株式会社 Heat exchanger and air conditioner
JP6273838B2 (en) * 2013-12-27 2018-02-07 ダイキン工業株式会社 Heat exchanger
US10443945B2 (en) * 2014-03-12 2019-10-15 Lennox Industries Inc. Adjustable multi-pass heat exchanger
CN103983126B (en) * 2014-05-28 2016-08-24 丹佛斯微通道换热器（嘉兴）有限公司 Heat exchanger
US10184703B2 (en) * 2014-08-19 2019-01-22 Carrier Corporation Multipass microchannel heat exchanger
US10197312B2 (en) * 2014-08-26 2019-02-05 Mahle International Gmbh Heat exchanger with reduced length distributor tube
RU2722080C2 (en) 2015-05-27 2020-05-26 Кэрриер Корпорейшн Multi-level distribution system for an evaporator
EP3236189B1 (en) 2015-11-30 2019-01-09 Carrier Corporation Heat exchanger for residential hvac applications
US10551099B2 (en) * 2016-02-04 2020-02-04 Mahle International Gmbh Micro-channel evaporator having compartmentalized distribution
JP6656950B2 (en) * 2016-02-29 2020-03-04 三菱重工サーマルシステムズ株式会社 Heat exchangers and air conditioners
JP6145189B1 (en) * 2016-02-29 2017-06-07 三菱重工業株式会社 Heat exchanger and air conditioner
JP6611335B2 (en) * 2016-02-29 2019-11-27 三菱重工サーマルシステムズ株式会社 Heat exchanger and air conditioner
WO2017175346A1 (en) * 2016-04-07 2017-10-12 三菱電機株式会社 Distributor, heat exchanger, and air conditioning device
KR102622732B1 (en) * 2016-09-13 2024-01-10 삼성전자주식회사 Heat exchanger, header for the same and manufacturing method thereof
KR102622735B1 (en) * 2016-09-13 2024-01-09 삼성전자주식회사 Heat exchanger
JP6862777B2 (en) * 2016-11-11 2021-04-21 富士通株式会社 Manifold and information processing equipment
CN110462332B (en) * 2017-03-27 2020-07-10 大金工业株式会社 Heat exchanger and air conditioner
US11396002B2 (en) * 2017-03-28 2022-07-26 Uop Llc Detecting and correcting problems in liquid lifting in heat exchangers
CN108662812B (en) * 2017-03-31 2022-02-18 开利公司 Flow balancer and evaporator having the same
EP4246075A3 (en) * 2017-05-05 2023-12-06 Carrier Corporation Heat exchanger for heat pump applications
CN110730897B (en) * 2017-06-11 2021-11-19 兹维埃·利文 Plate and shell type heat exchange system with separated manifold
FR3068774B1 (en) * 2017-07-06 2019-12-20 Valeo Systemes Thermiques DEVICE FOR THERMAL REGULATION OF AT LEAST ONE ELECTRICAL ENERGY STORAGE ELEMENT
US11555660B2 (en) * 2017-08-03 2023-01-17 Mitsubishi Electric Corporation Refrigerant distributor, heat exchanger, and refrigeration cycle apparatus
US20190212066A1 (en) * 2018-01-11 2019-07-11 Asia Vital Components Co., Ltd. Water-cooling radiator assembly with internal horiziontal partition members and flow disturbing members
US11022382B2 (en) 2018-03-08 2021-06-01 Johnson Controls Technology Company System and method for heat exchanger of an HVAC and R system
KR102601565B1 (en) * 2018-12-14 2023-11-14 삼성전자주식회사 Heat exchanger and air conditioner having the same
JP6664558B1 (en) * 2019-02-04 2020-03-13 三菱電機株式会社 Heat exchanger, air conditioner with heat exchanger, and refrigerant circuit with heat exchanger
JP6853867B2 (en) * 2019-10-31 2021-03-31 三菱重工サーマルシステムズ株式会社 Heat exchanger and air conditioner
IT202000024268A1 (en) * 2020-10-14 2022-04-14 Hudson Italiana Fbm HEAD-TUBE SYSTEM FOR THE OPTIMIZED DISTRIBUTION OF THE FLUID IN AN AIR COOLING DEVICE
EP4015959B1 (en) * 2020-12-15 2023-09-13 Valeo Autosystemy Sp. z o.o. Heat exchanger
US12066224B2 (en) * 2022-06-03 2024-08-20 Trane International Inc. Evaporator charge management and method for controlling the same
JPWO2024121984A1 (en) * 2022-12-07 2024-06-13
EP4617605A1 (en) * 2024-03-15 2025-09-17 Carrier Corporation Fluid distributor assembly for a heat exchanger

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2555055A (en) * 1948-05-14 1951-05-29 Carrier Corp Refrigerant distributor
GB715492A (en) * 1951-12-19 1954-09-15 Ici Ltd Improvements in or relating to plate type heat exchangers
GB1509204A (en) * 1974-11-14 1978-05-04 Leslie Co Self-cleaning heat exchanger circuit
DE3311579C2 (en) * 1983-03-30 1985-10-03 Süddeutsche Kühlerfabrik Julius Fr. Behr GmbH & Co. KG, 7000 Stuttgart Heat exchanger
JP3017272B2 (en) * 1990-11-07 2000-03-06 株式会社ゼクセル Heat exchanger
WO1997024562A1 (en) * 1995-12-28 1997-07-10 H-Tech, Inc. Heater for fluids
US5865244A (en) * 1997-03-25 1999-02-02 Behr America, Inc. Plastic header tank matrix and method of making same
US7163051B2 (en) * 2003-08-28 2007-01-16 Praxair Technology, Inc. Heat exchanger distributor for multicomponent heat exchange fluid
EP1548380A3 (en) * 2003-12-22 2006-10-04 Hussmann Corporation Flat-tube evaporator with micro-distributor
US7398819B2 (en) * 2004-11-12 2008-07-15 Carrier Corporation Minichannel heat exchanger with restrictive inserts
MX2007009256A (en) * 2005-02-02 2007-09-04 Carrier Corp Heat exchanger with perforated plate in header.
US7967060B2 (en) * 2005-08-18 2011-06-28 Parker-Hannifin Corporation Evaporating heat exchanger
US20080023185A1 (en) * 2006-07-25 2008-01-31 Henry Earl Beamer Heat exchanger assembly
ATE556283T1 (en) * 2006-10-13 2012-05-15 Carrier Corp MULTIPLE HEAT EXCHANGER WITH RETURN CHAMBERS HAVING DISTRIBUTION INSERTS

Also Published As

Publication number Publication date
HK1147798A1 (en) 2011-08-19
DK2212639T3 (en) 2016-09-19
CN101821577B (en) 2012-08-22
EP2212639A4 (en) 2011-02-23
EP2212639B1 (en) 2016-08-31
US20100206535A1 (en) 2010-08-19
ES2589319T3 (en) 2016-11-11
CN101821577A (en) 2010-09-01
WO2009048451A1 (en) 2009-04-16

Similar Documents

Publication Publication Date Title
EP2212639B1 (en) Heat exchanger having baffled manifolds
US8225853B2 (en) Multi-pass heat exchangers having return manifolds with distributing inserts
EP2778595B1 (en) Heat exchanger
EP3922941B1 (en) Heat exchanger and air-conditioner provided with same
US9625214B2 (en) Heat exchanger
EP3203175B1 (en) Heat exchanger and air conditioning apparatus
CN107816824B (en) heat exchanger
CN105209846B (en) Heat exchanger
JP6202451B2 (en) Heat exchanger and air conditioner
US20110203308A1 (en) Heat exchanger including multiple tube distributor
KR20110010048A (en) Multipass Heat Exchanger with Improved Uniformity of Refrigerant Fluid Distribution
AU2005326710A1 (en) Parallel flow heat exchanger with crimped channel entrance
EP3203174B1 (en) Heat exchanger header
EP4095476A1 (en) Heat exchanger and refrigeration cycle apparatus
CN104364598B (en) Refrigerant loop heat exchanger
JPWO2019058540A1 (en) Refrigerant distributor and air conditioner
JP2002130866A (en) Condenser for air conditioning
KR20150098835A (en) Condenser
CN114729795A (en) Heat exchanger
US20100037652A1 (en) Multi-channel heat exchanger with multi-stage expansion
HK1147798B (en) Heat exchangers having baffled manifolds
EP4130612A1 (en) Heat exchanger, heat exchanger unit, and refrigeration cycle device
WO2025182138A1 (en) Header distributor and heat exchanger
WO2021214849A1 (en) Air conditioner, freezer, and distributor
JP2020085257A (en) Header for heat exchanger, heat exchanger, outdoor unit, and air conditioner

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20100510

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR MK RS

RIN1 Information on inventor provided before grant (corrected)

Inventor name: CONTI, TIZIANO

Inventor name: MACRI, SALVATORE

Inventor name: VERMA, PARMESH

Inventor name: PARK, YOUNG, K.

Inventor name: CHEN, ALEXANDER

Inventor name: MUNOZ, JULES, RICARDO

DAX Request for extension of the european patent (deleted)
A4 Supplementary search report drawn up and despatched

Effective date: 20110126

17Q First examination report despatched

Effective date: 20150318

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20160314

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: NL

Ref legal event code: FP

REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

Effective date: 20160913

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 10

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602007047760

Country of ref document: DE

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 825373

Country of ref document: AT

Kind code of ref document: T

Effective date: 20161015

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2589319

Country of ref document: ES

Kind code of ref document: T3

Effective date: 20161111

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 825373

Country of ref document: AT

Kind code of ref document: T

Effective date: 20160831

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160831

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160831

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20161031

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20161201

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160831

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160831

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160831

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160831

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160831

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170102

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160831

Ref country code: BE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160831

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160831

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160831

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20161130

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602007047760

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160831

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 602007047760

Country of ref document: DE

Representative=s name: SCHMITT-NILSON SCHRAUD WAIBEL WOHLFROM PATENTA, DE

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20161031

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20161031

26N No opposition filed

Effective date: 20170601

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20161012

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160831

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 11

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20161012

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20071012

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160831

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160831

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160831

Ref country code: MT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20161031

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160831

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20180920

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20180924

Year of fee payment: 12

Ref country code: GB

Payment date: 20180925

Year of fee payment: 12

Ref country code: DK

Payment date: 20180921

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20180819

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20181105

Year of fee payment: 12

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 602007047760

Country of ref document: DE

REG Reference to a national code

Ref country code: DK

Ref legal event code: EBP

Effective date: 20191031

REG Reference to a national code

Ref country code: NL

Ref legal event code: MM

Effective date: 20191101

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200501

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20191101

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20191012

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20191031

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20191012

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20191031

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20210302

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20191013