EP4617605A1 - Fluid distributor assembly for a heat exchanger - Google Patents

Fluid distributor assembly for a heat exchanger

Info

Publication number
EP4617605A1
EP4617605A1 EP25161665.2A EP25161665A EP4617605A1 EP 4617605 A1 EP4617605 A1 EP 4617605A1 EP 25161665 A EP25161665 A EP 25161665A EP 4617605 A1 EP4617605 A1 EP 4617605A1
Authority
EP
European Patent Office
Prior art keywords
casing
fluid
distributors
distributor assembly
fluid distributor
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.)
Pending
Application number
EP25161665.2A
Other languages
German (de)
French (fr)
Inventor
Luis Avila
Thomas Bryant
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 EP4617605A1 publication Critical patent/EP4617605A1/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02Header boxes; End plates
    • F28F9/026Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits
    • F28F9/0265Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits by using guiding means or impingement means inside the header box
    • F28F9/0268Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits by using guiding means or impingement means inside the header box in the form of multiple deflectors for channeling the heat exchange medium
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02Header boxes; End plates
    • F28F9/026Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02Header boxes; End plates
    • F28F9/026Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits
    • F28F9/027Header 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
    • F28F9/0273Header 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02Header boxes; End plates
    • F28F9/026Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits
    • F28F9/0278Header 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00Heat-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
    • F28D1/02Heat-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
    • F28D1/04Heat-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
    • F28D1/053Heat-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
    • F28D1/0535Heat-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
    • F28D1/05366Assemblies of conduits connected to common headers, e.g. core type radiators

Definitions

  • This invention relates to the field of heat exchangers, and more particularly, a fluid distributor assembly for a heat exchanger.
  • a fluid distributor assembly for a heat exchanger.
  • the assembly comprises a first casing, a second casing configured to be removably attached to the first casing such that a header is formed having an enclosed space therewithin, and a plurality of fluid distributors configured to be removably accommodated on one or more of the first casing and the second casing, wherein at least two fluid distributors among the plurality of fluid distributors have different distribution configurations, wherein the first casing and the second casing are attached to secure the accommodated distributors within the formed header.
  • the plurality of fluid distributors are accommodated at predefined positions on the first casing and/or the second casing such that the plurality of fluid distributors remains in line along a length of the header formed upon attachment of the first casing and the second casing.
  • the fluid distributor assembly or the header is configured to be fluidically connected to a plurality of heat exchange tubes associated with a heat exchanger.
  • the first casing comprises a plurality of first slots configured to receive an end of the plurality of heat exchange tubes, such that the plurality of heat exchange tubes gets fluidically connected to at least one of the accommodated fluid distributors upon attachment of the first casing and the second casing.
  • the second casing comprises one or more second slots configured to be fluidically connected to one or more feeder tubes, wherein the plurality of fluid distributors are accommodated on the second casing such that an inlet port of the corresponding fluid distributors gets fluidically connected to the corresponding the feeder tube.
  • the second casing comprises one or more second slots configured to be fluidically connected to one or more feeder tubes, wherein the plurality of fluid distributors are accommodated on the first casing such that an inlet port of the corresponding fluid distributors gets fluidically connected to the corresponding the feeder tube upon attachment of the first casing and the second casing.
  • the fluid distributor assembly comprises one or more connector tubes, each configured to be at least partially disposed through the second casing or within the header via one of the second slots, wherein a first end of the disposed connector tube is configured to be fluidically connected the inlet port of the accommodated fluid distributor and a second end of the corresponding connector tube is configured to be fluidically connected to one of the feeder tubes.
  • one side of the second casing is open and comprises a plurality of sections configured along a length of the second casing, wherein each of the sections is configured to accommodate at least one of the fluid distributor thereon.
  • one side of the first casing comprises a plurality of sections configured along a length of the first casing and another side of the first casing comprises the plurality of first slots connected to the plurality of sections, wherein each of the sections is configured to accommodate at least one of the fluid distributor thereon.
  • the fluid distributor assembly comprises one or more isolators, each configured to be coaxially positioned between the adjacent sections and/or at extreme ends of the corresponding casings to fluidically isolate each of the sections and correspondingly form one or more compartments and the enclosed space within the header upon attachment of the first casing and the second casing.
  • the header, the accommodated fluid distributors, the plurality of heat exchange tubes, the isolators, and the connector tubes are brazed together to fluidically seal the fluid distributor assembly.
  • the brazed fluid distributor assembly allows flow of a fluid from the feeder tubes into the plurality of distributors via the one or more second slots or the connector tubes and further into the plurality of heat exchange tubes via one or more outlet ports associated with the corresponding distributors.
  • the plurality of sections have a predefined profile based on an outer profile of the fluid distributors to be accommodated thereon, wherein the first casing and the second casing have predefined shapes such that opposite ends of the formed header remains closed and the enclosed space is formed therewithin upon attachment of the first casing and the second casing.
  • each of the sections have a substantially curved profile, wherein the first casing and the second casing have predefined shapes such that opposite ends of the formed header remains closed and the enclosed space is formed therewithin upon attachment of the first casing and the second casing.
  • the first casing has a substantially planar profile comprising the plurality of first slots extending therethrough, wherein the first casing and the second casing have predefined shapes such that opposite ends of the formed header remains closed and the enclosed space is formed therewithin upon attachment of the first casing and the second casing.
  • the first casing comprises one or more first fixtures and the second casing comprises one or more second fixtures, wherein the one or more first fixtures are configured to engage with the one or more second fixtures to enable the attachment of the first casing and the second casing.
  • the one or more first fixtures and the one or more second fixtures are adapted to be clamped or snap-fitted or slidably engage with each other.
  • a first distributor among the plurality of distributor comprises: a hollow tube of a predefined length, the tube comprises at least one inlet port, and one or more outlet ports configured radially along an outer surface of the tube, wherein the one or more outlet ports are fluidically connected to the at least one inlet port via one or more channels extending through the tube.
  • a second distributor among the plurality of distributor comprises: a plate of a predefined length and a predefined thickness, the plate comprises at least one inlet port, and one or more outlet ports configured on an outer surface of the tube, wherein the one or more outlet ports are fluidically connected to the at least one inlet port via one or more channels extending through the plate, wherein the plate is a laminated plate or a perforated plate.
  • a third distributor among the plurality of distributor comprises: an enclosure comprising one or more sides and/or one or more surfaces defining a predefined shape and a predefined internal volume, wherein the third distributor is configured to fluidically accommodate the end of the plurality of heat exchange tubes through the one or more sides and/or the one or more surfaces of the enclosure.
  • a fluid distributor assembly 100 (also referred to as distributor assembly or assembly 100, herein) for a heat exchanger is disclosed.
  • the assembly 100 can include a first casing 102, and a second casing 104 configured to be removably attached to the first casing 102 such that a header 100A (also known as a manifold 100A) is formed having an enclosed space therewithin.
  • the first casing 102 and the second casing 104 can have predefined shapes such that opposite ends of the header 100A remain closed and the enclosed space is formed therewithin upon attachment of the first casing 102 and the second casing 104.
  • the assembly 100 can further include a plurality of fluid distributors 106-1 to 106-N (collectively referred to as distributors 106 or distribution devices 106, herein) that can be configured to be removably accommodated on one or more of the first casing 102 and the second casing 104.
  • a plurality of fluid distributors 106-1 to 106-N (collectively referred to as distributors 106 or distribution devices 106, herein) that can be configured to be removably accommodated on one or more of the first casing 102 and the second casing 104.
  • at least two fluid distributors 106 among the plurality of fluid distributors 106 can have different distribution configurations, however, in some embodiments, the plurality of fluid distributors 106 can also have the same distribution configuration (i.e. all the distributors 106-1 to 106-N can be identical) without any limitations.
  • the first casing 102 and the second casing 104 can be attached together and brazed to secure the accommodated distributors 106 within the formed header 100A and form the distributor assembly 100 as shown in FIG. 1D .
  • the distributor assembly 100 can be configured in a horizontal orientation. Further, in one or more embodiments, the distributor assembly 100 can be configured in a vertical orientation. However, in some embodiments, the distributor assembly 100 can also be oriented at a predefined angle from a horizontal plane or vertical plane.
  • the fluid distributor assembly 100 or the header 100A can be configured to be fluidically connected to a plurality of heat exchange tubes 108 associated with a heat exchanger as shown in FIG. 1D , such that the heat exchange tubes 108 get fluidically connected to at least one of the accommodated fluid distributors 106 upon attachment of the first casing 102 and the second casing 104 or upon formation of the header 100A.
  • the heat exchanger can be a microchannel heat exchanger having microchannel tubes in the heat exchange section. Further, in other embodiments, the heat exchanger can also be an inserted fin heat exchanger.
  • the first casing 102 can include a plurality of first slots 102-1 configured to receive an end of the plurality of heat exchange tubes 108, such that the heat exchange tubes 108 get fluidically connected to at least one of the accommodated fluid distributors 106 upon attachment of the first casing 102 and the second casing 104.
  • the size of the first slots 102-1 can be selected based on the outer profile of the heat exchange tubes 108 to be inserted therethrough.
  • the first slots 102-1 can be made in the first casing 102 during the manufacturing phase, prior to attachment of the first casing 102 to the second casing 104.
  • the first slots 102-1 can also be made in the first casing 102 after attachment of the first casing 102 to the second casing 104 or upon formation of the header 100A.
  • the first casing 102 can have a planar or cuboidal profile having the first slots 102-1 extending through.
  • the first casing 102 can also have other profiles without any limitation.
  • the plurality of fluid distributors 106 can be accommodated at predefined positions on the first casing 102 and/or the second casing 104 such that the plurality of fluid distributors 106 remains in line along a length of the header 100A formed upon attachment of the first casing 102 and the second casing 104.
  • all the fluid distributors 106 can be accommodated on the second casing 104 such that the fluid distributors 106 remain in line along the length of the second casing 104.
  • the first casing 102 can be attached to the second casing 104 to secure the accommodated fluid distributors 106.
  • some of the fluid distributors 106 can be accommodated on the second casing 104 and the remaining fluid distributors 106 can be accommodated on the first casing 102 such that fluid distributors 106 accommodated on the first casing 102 and the second casing 104 do not overlap and all the fluid distributors 106 remain in line along a length of the header 100A formed upon attachment of the first casing 102 and the second casing 104.
  • all the fluid distributors 106 can be accommodated on the first casing 102 such that the fluid distributors 106 remain in line along the length of the first casing 102.
  • the first casing 102 can be attached to the second casing 104 to secure the accommodated fluid distributors 106.
  • one side of the second casing 104 can be open and can include a plurality of sections 104-1 configured along the length of the second casing 104. Each of these sections 104-1 can be configured to accommodate at least one of the fluid distributors 106 thereon. Further, the second casing 104 can also include one or more second slots 104-2 configured to be fluidically connected to one or more feeder tubes, where the fluid distributors 106 can be accommodated on the second casing 104 such that an inlet port of the corresponding fluid distributors 106 gets fluidically connected to the corresponding the feeder tube.
  • one side of the first casing 102 can include a plurality of sections configured along a length of the first casing 102, where each of the sections can be configured to accommodate at least one of the fluid distributors 106 thereon.
  • another side of the first casing 102 can include the plurality of first slots 102-1 (for heat exchange tubes 108) being connected to the plurality of sections.
  • the second casing 104 can include the second slots 104-2 configured to be fluidically connected to the feeder tubes, such that an inlet port of the fluid distributors 106 accommodated on the first casing 102 can get fluidically connected to the corresponding feeder tube upon attachment of the first casing 102 and the second casing 104.
  • the distributor assembly 100 can include one or more connector tubes 110, each configured to be at least partially disposed through the second casing 104 or within the header 100A via one of the second slots 104-2. Further, a first end of the disposed connector tube 110 can be configured to be fluidically connected to the inlet port of the accommodated fluid distributor 106 and a second end of the corresponding connector tube 110 can be configured to be fluidically connected to one of the feeder tubes.
  • the assembly 100 can include one or more isolators 112, each configured to be coaxially positioned between the sections 104-1 or the adjacent fluid distributors 106 and at extremen ends to correspondingly form one or more compartments (C) within the header 100A upon attachment of the first casing 102 and the second casing 104 as shown in FIG. 1D , such that one of the fluid distributors 106 remains within each of the formed compartments C.
  • the isolators 112 can be a solid member having a predefined thickness and predefined profile based on a cross-sectional inner profile of the formed header 100A, such that the isolators 112 can be coaxially placed and fitted within header 100A while preventing any leakage between the adjacent compartments C upon brazing.
  • the complete assembly 100 can be brazed together to fluidically seal the distributor assembly 100.
  • the distributor assembly 100 may not include the isolators 112 and/or the connector tubes 110, and only the formed header 100A (first casing 102 and second casing 104), the accommodated fluid distributors 106, and the plurality of heat exchange tubes 108 may be brazed to form a leak-proof distributor assembly 100.
  • the brazed distributor assembly 100 can allow the flow of a fluid (refrigerant associated with a refrigerant line or heat exchanger) from the feeder tubes into the plurality of distributors 106 via the second slots 104-2 or the connector tubes 110 and further into the plurality of heat exchange tubes 108 via one or more outlet ports associated with the corresponding fluid distributors 106.
  • a fluid refrigerant associated with a refrigerant line or heat exchanger
  • the plurality of sections 104-1 provided on the first casing 102 (not shown) and/or the second casing 104 can have a predefined profile based on an outer profile of the fluid distributors 106 to be accommodated thereon.
  • the first casing 102 and the second casing 104 can have predefined shapes such that opposite ends of the formed header 100A remain closed and the enclosed space is formed therewithin upon attachment of the first casing 102 and the second casing 104.
  • each of the sections 104-1 can have a substantially curved profile but is not limited to the like.
  • the second casing 104 can have a substantially C-shaped curved cross-section having closed ends, and an open side without or with the plurality of sections 104-1 for accommodating the fluid distributors 106 as shown in FIGs. 3A and 3B .
  • the first casing 102 can have a planar profile having the first slots 102-1 as shown in FIGs. 2A and 2B .
  • the first casing 102 can be attached to the second casing 104 such that a substantially semi-cylindrical-shaped housing is formed.
  • the second casing 104 can have a substantially C-shaped curved cross-section having closed ends, and an open side without or with the plurality of sections 104-1 for accommodating the fluid distributors 106.
  • the first casing 102 can also have a substantially C-shaped curved cross-section having the first slots 102-1, where the first casing 102 can be attached to the second casing 104 such that a substantially cylindrical-shaped housing is formed.
  • casings 102, 104 and the header 100A having a specific shape and cross-section for the sake of brevity, however, the casings 102, 104 and the header 100A can have any other shape and cross-section as well, without any limitations, and all such embodiments are well within the scope of this invention.
  • the first casing 102 can include one or more first fixtures (not shown) and the second casing 104 can include one or more second fixtures (not shown), where the first fixtures can be configured to engage with the second fixtures to enable the attachment of the first casing 102 and the second casing 104. This may allow the first casing 102 and second casing 104 to be temporarily attached and secure the fluid distributors 106 therewithin during the brazing process.
  • the first fixtures and the second fixtures can be configured to be clamped or snap-fitted or slidably engaged.
  • the first casing 102 and second casing 104 may also be attached together prior to brazing using any means known in the art without any limitation.
  • a first distributor 106-1 among the plurality of distributors 106 can include a hollow tube 402 of a predefined length.
  • the tube 402 can include at least one inlet port 404, and one or more outlet ports 406 configured radially along the outer surface of the tube 402.
  • the outlet ports 406 of the first distributor 100-1 can be fluidically connected to the inlet port(s) 404 via one or more channels (not shown) extending through the tube 402.
  • the first distributor 106-1 can be coaxially configured in one of the sections 104-1 within the header 100A.
  • the inlet port 404 of the first distributor 106-1 can be fluidically connected to the second slot 104-2 of the second casing 104 or to the connector tubes 110 at the second slot 104-2, thereby fluidically connecting the first distributor 106-1 to one of the feeder tubes.
  • the end of the heat exchange tube 108 inserted within the assembly 100 can be in fluidic communication or in front of the outlet ports 406 of the first distributor 106-1 with a gap therebetween to enable the supply of the fluid received from the feeder tube into the corresponding heat exchange tubes 108.
  • the size of the outlet ports 406 of the first distributor 106-1 can vary along the length of the tube 402, however, the size of all the outlet ports 406 can also be the same. Further, a gap between the adjacent outlet ports 406 on the tube 402 of the first distributor 106-1 may vary, however, the gap between the adjacent outlet ports 406 may also be the same.
  • a second distributor 106-2 among the plurality of distributors 106 can include a plate 502 of a predefined length and a predefined thickness.
  • the plate 502 can be a laminated plate or a perforated plate but is not limited to the like.
  • the plate 502 can include at least one inlet port 504, and one or more outlet ports 506 configured on the outer surface of the plate 502.
  • the outlet ports 506 of the plate 502 can be fluidically connected to the inlet port(s) 504 via one or more channels (not shown) extending through the plate 502.
  • the second distributor 106-2 can be coaxially configured in one of the sections 104-1 within the header 100A.
  • the inlet port 504 of the second distributor 106-2 can be fluidically connected to the second slot 104-2 of the second casing 104 or to the connector tubes 110 at the second slot 104-2, thereby fluidically connecting the second distributor 106-2 to one of the feeder tubes.
  • the end of the heat exchange tube 108 inserted within the assembly 100 can be in fluidic communication or in front of the outlet ports 506 of the first distributor 106-2 with a gap therebetween to enable the supply of the fluid received from the feeder tube into the corresponding heat exchange tubes 108.
  • the size of the outlet ports 506 of the second distributor 106-2 can vary along the length of the plate 502, however, the size of all the outlet ports 506 can also be the same. Further, a gap between the adjacent outlet ports 506 on the plate 502 of the second distributor may vary, however, the gap between the adjacent outlet ports 506 may also be the same.
  • a third distributor among the plurality of distributors 106 can include an enclosure comprising one or more sides and/or one or more surfaces defining a predefined shape and a predefined internal volume.
  • the third distributor 106-3 can have an octagonal cross-section having eight planar sides.
  • the third distributor 106-3 can be configured to fluidically accommodate the end of the plurality of heat exchange tubes 108 through the one or more sides and/or the one or more surfaces of the enclosure 602.
  • the enclosure 602 can include an inlet port 604 and any of the sides or surfaces of the third distributor 106-3 can include the outlet ports 606 being internally connected to the inlet port 604.
  • the third distributor can be coaxially configured in one of the sections 104-1 within the header 100A. Further, the inlet port of the third distributor can be fluidically connected to the second slot of the second casing 104 or to the connector tubes 110 at the second slot, thereby fluidically connecting the third distributor to one of the feeder tubes. Furthermore, the end of the heat exchange tube inserted within the assembly 100 can be in fluidic communication or in front of the outlet ports of the first distributor with a gap therebetween to enable the supply of the fluid received from the feeder tube into the corresponding heat exchange tubes 108.
  • the size of the outlet ports of the third distributor can vary along the length of the plate, however, the size of all the outlet ports can also be the same. Further, a gap between the adjacent outlet ports on the plate of the third distributor may vary, however, the gap between the adjacent outlet ports may also be the same.
  • the flexibility to allow the use of different fluid distributors having different fluid distribution configurations within the assembly can facilitate independently customizing and optimizing the flow of the fluid (refrigerant) into the ports associated with each of the heat exchange tubes being connected to the assembly length to compensate for flow irregularities or pressure drop and achieve even distributed flow across the heat exchanger.
  • this invention overcomes the challenges associated with existing heat exchangers, by providing a simple, efficient, cost-effective, and easy-to-assemble fluid distribution assembly for heat exchangers, which uniformly supplies fluid (refrigerant) to the ports of the heat exchange tubes.
  • this assembly can be easily manufactured and assembled with minimal complexity. Additionally, the assembly can provide the flexibility to use different types of fluid distributors (having different distribution configurations) within the same assembly.

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  • 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)

Abstract

Described herein is a fluid distributor assembly (100) for a heat exchanger. The assembly (100) comprises a first casing (102), a second casing (104) configured to be removably attached to the first casing (102) such that a header (100A) is formed having an enclosed space therewithin, and a plurality of fluid distributors (106) configured to be removably accommodated on one or more of the first casing (102) and the second casing (104), wherein at least two fluid distributors (106) among the plurality of fluid distributors (106) have different distribution configurations, wherein the first casing (102) and the second casing (104) are attached to secure the accommodated distributors (106) within the formed header (100A).

Description

    BACKGROUND
  • This invention relates to the field of heat exchangers, and more particularly, a fluid distributor assembly for a heat exchanger.
  • SUMMARY
  • According to a first aspect of the invention there is provided a fluid distributor assembly for a heat exchanger. The assembly comprises a first casing, a second casing configured to be removably attached to the first casing such that a header is formed having an enclosed space therewithin, and a plurality of fluid distributors configured to be removably accommodated on one or more of the first casing and the second casing, wherein at least two fluid distributors among the plurality of fluid distributors have different distribution configurations, wherein the first casing and the second casing are attached to secure the accommodated distributors within the formed header.
  • Optionally, the plurality of fluid distributors are accommodated at predefined positions on the first casing and/or the second casing such that the plurality of fluid distributors remains in line along a length of the header formed upon attachment of the first casing and the second casing.
  • Optionally, the fluid distributor assembly or the header is configured to be fluidically connected to a plurality of heat exchange tubes associated with a heat exchanger.
  • Optionally, the first casing comprises a plurality of first slots configured to receive an end of the plurality of heat exchange tubes, such that the plurality of heat exchange tubes gets fluidically connected to at least one of the accommodated fluid distributors upon attachment of the first casing and the second casing.
  • Optionally, the second casing comprises one or more second slots configured to be fluidically connected to one or more feeder tubes, wherein the plurality of fluid distributors are accommodated on the second casing such that an inlet port of the corresponding fluid distributors gets fluidically connected to the corresponding the feeder tube.
  • Optionally, the second casing comprises one or more second slots configured to be fluidically connected to one or more feeder tubes, wherein the plurality of fluid distributors are accommodated on the first casing such that an inlet port of the corresponding fluid distributors gets fluidically connected to the corresponding the feeder tube upon attachment of the first casing and the second casing.
  • Optionally, the fluid distributor assembly comprises one or more connector tubes, each configured to be at least partially disposed through the second casing or within the header via one of the second slots, wherein a first end of the disposed connector tube is configured to be fluidically connected the inlet port of the accommodated fluid distributor and a second end of the corresponding connector tube is configured to be fluidically connected to one of the feeder tubes.
  • Optionally, one side of the second casing is open and comprises a plurality of sections configured along a length of the second casing, wherein each of the sections is configured to accommodate at least one of the fluid distributor thereon.
  • Optionally, one side of the first casing comprises a plurality of sections configured along a length of the first casing and another side of the first casing comprises the plurality of first slots connected to the plurality of sections, wherein each of the sections is configured to accommodate at least one of the fluid distributor thereon.
  • Optionally, the fluid distributor assembly comprises one or more isolators, each configured to be coaxially positioned between the adjacent sections and/or at extreme ends of the corresponding casings to fluidically isolate each of the sections and correspondingly form one or more compartments and the enclosed space within the header upon attachment of the first casing and the second casing.
  • Optionally, the header, the accommodated fluid distributors, the plurality of heat exchange tubes, the isolators, and the connector tubes are brazed together to fluidically seal the fluid distributor assembly.
  • Optionally, the brazed fluid distributor assembly allows flow of a fluid from the feeder tubes into the plurality of distributors via the one or more second slots or the connector tubes and further into the plurality of heat exchange tubes via one or more outlet ports associated with the corresponding distributors.
  • Optionally, the plurality of sections have a predefined profile based on an outer profile of the fluid distributors to be accommodated thereon, wherein the first casing and the second casing have predefined shapes such that opposite ends of the formed header remains closed and the enclosed space is formed therewithin upon attachment of the first casing and the second casing.
  • Optionally, each of the sections have a substantially curved profile, wherein the first casing and the second casing have predefined shapes such that opposite ends of the formed header remains closed and the enclosed space is formed therewithin upon attachment of the first casing and the second casing.
  • Optionally, the first casing has a substantially planar profile comprising the plurality of first slots extending therethrough, wherein the first casing and the second casing have predefined shapes such that opposite ends of the formed header remains closed and the enclosed space is formed therewithin upon attachment of the first casing and the second casing.
  • Optionally, the first casing comprises one or more first fixtures and the second casing comprises one or more second fixtures, wherein the one or more first fixtures are configured to engage with the one or more second fixtures to enable the attachment of the first casing and the second casing.
  • Optionally, the one or more first fixtures and the one or more second fixtures are adapted to be clamped or snap-fitted or slidably engage with each other.
  • Optionally, a first distributor among the plurality of distributor comprises: a hollow tube of a predefined length, the tube comprises at least one inlet port, and one or more outlet ports configured radially along an outer surface of the tube, wherein the one or more outlet ports are fluidically connected to the at least one inlet port via one or more channels extending through the tube.
  • Optionally, a second distributor among the plurality of distributor comprises: a plate of a predefined length and a predefined thickness, the plate comprises at least one inlet port, and one or more outlet ports configured on an outer surface of the tube, wherein the one or more outlet ports are fluidically connected to the at least one inlet port via one or more channels extending through the plate, wherein the plate is a laminated plate or a perforated plate.
  • Optionally, a third distributor among the plurality of distributor comprises: an enclosure comprising one or more sides and/or one or more surfaces defining a predefined shape and a predefined internal volume, wherein the third distributor is configured to fluidically accommodate the end of the plurality of heat exchange tubes through the one or more sides and/or the one or more surfaces of the enclosure.
  • The foregoing summary is illustrative only and is not intended to be in any way limiting. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, features, and techniques of the invention will become more apparent from the following description taken in conjunction with the drawings.
  • BRIEF DESCRIPTION OF THE DRAWINGS
  • The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification. The drawings illustrate exemplary embodiments of the invention and, together with the description, serve to explain the principles of the invention by way of example only.
  • In the drawings, similar components and/or features may have the same reference label. Further, various components of the same type may be distinguished by following the reference label with a second label that distinguishes among the similar components. If only the first reference label is used in the specification, the description is applicable to any one of the similar components having the same first reference label irrespective of the second reference label.
    • FIG. 1A shows an exploded view of the distributor assembly for a heat exchanger.
    • FIG. 1B shows an exploded view of the distributor assembly for a heat exchanger.
    • FIG. 1C shows an exploded view of the distributor assembly for a heat exchanger.
    • FIG. 1D shows a cross-section view of the distributor assembly.
    • FIGs. 2A and 2B show the first casing associated with the distributor assembly.
    • FIGs. 3A and 3B show the second casing associated with the distributor assembly.
    • FIG. 4 shows the distributor associated with the distributor assembly.
    • FIG. 5 shows the distributor associated with the distributor assembly.
    • FIG. 6 shows the distributor associated with the distributor assembly.
    DETAILED DESCRIPTION
  • The following is a detailed description of embodiments of the invention depicted in the accompanying drawings. The embodiments are in such detail as to clearly communicate the invention. However, the amount of detail offered is not intended to limit the anticipated variations of embodiments; on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the scope of the invention as defined by the appended claims.
  • Various terms are used herein. To the extent a term used in a claim is not defined below, it should be given the broadest definition persons in the pertinent art have given that term as reflected in printed publications and issued patents at the time of filing.
  • In the specification, reference may be made to the spatial relationships between various components and to the spatial orientation of various aspects of components as the devices are depicted in the attached drawings. However, as will be recognized by those skilled in the art after a complete reading of the disclosure, the components of this invention. described herein may be positioned in any desired orientation. Thus, the use of terms such as "above," "below," "upper," "lower," "first", "second" or other like terms to describe a spatial relationship between various components or to describe the spatial orientation of aspects of such components should be understood to describe a relative relationship between the components or a spatial orientation of aspects of such components, respectively, described herein may be oriented in any desired direction.
  • The uniform distribution of fluid (refrigerant) across multiple ports of heat exchange tubes in a heat exchanger plays a crucial role in the overall performance of the heat exchanger and the effective utilization of the heat transfer surface. Existing fluid distribution solutions are complex and difficult to manufacture or assemble. Furthermore, these solutions offer limited flexibility to incorporate different types of fluid distribution devices in a single structure to address flow irregularities or pressure drops. This is essential for achieving evenly distributed flow across the heat exchanger when it functions as an evaporator. Therefore, there is a need for a simple, efficient, cost-effective, and easy-to-assemble fluid distribution assembly for heat exchangers. This assembly should uniformly supply fluid (refrigerant) to the ports of the heat exchange tubes and should be easily manufactured and assembled with minimal complexity. Additionally, it should provide the flexibility to use different types of fluid distributor devices within a single assembly.
  • Referring to FIGs. 1A to 1D, a fluid distributor assembly 100 (also referred to as distributor assembly or assembly 100, herein) for a heat exchanger is disclosed. The assembly 100 can include a first casing 102, and a second casing 104 configured to be removably attached to the first casing 102 such that a header 100A (also known as a manifold 100A) is formed having an enclosed space therewithin. The first casing 102 and the second casing 104 can have predefined shapes such that opposite ends of the header 100A remain closed and the enclosed space is formed therewithin upon attachment of the first casing 102 and the second casing 104.
  • The assembly 100 can further include a plurality of fluid distributors 106-1 to 106-N (collectively referred to as distributors 106 or distribution devices 106, herein) that can be configured to be removably accommodated on one or more of the first casing 102 and the second casing 104. In one or more embodiments, at least two fluid distributors 106 among the plurality of fluid distributors 106 can have different distribution configurations, however, in some embodiments, the plurality of fluid distributors 106 can also have the same distribution configuration (i.e. all the distributors 106-1 to 106-N can be identical) without any limitations. Further, once the distributors 106 are accommodated on the first casing 102 and/or the second casing 104, the first casing 102 and the second casing 104 can be attached together and brazed to secure the accommodated distributors 106 within the formed header 100A and form the distributor assembly 100 as shown in FIG. 1D.
  • In one or more embodiments, the distributor assembly 100 can be configured in a horizontal orientation. Further, in one or more embodiments, the distributor assembly 100 can be configured in a vertical orientation. However, in some embodiments, the distributor assembly 100 can also be oriented at a predefined angle from a horizontal plane or vertical plane.
  • The fluid distributor assembly 100 or the header 100A can be configured to be fluidically connected to a plurality of heat exchange tubes 108 associated with a heat exchanger as shown in FIG. 1D, such that the heat exchange tubes 108 get fluidically connected to at least one of the accommodated fluid distributors 106 upon attachment of the first casing 102 and the second casing 104 or upon formation of the header 100A. In one or more embodiments, the heat exchanger can be a microchannel heat exchanger having microchannel tubes in the heat exchange section. Further, in other embodiments, the heat exchanger can also be an inserted fin heat exchanger.
  • In one or more embodiments, the first casing 102 can include a plurality of first slots 102-1 configured to receive an end of the plurality of heat exchange tubes 108, such that the heat exchange tubes 108 get fluidically connected to at least one of the accommodated fluid distributors 106 upon attachment of the first casing 102 and the second casing 104. The size of the first slots 102-1 can be selected based on the outer profile of the heat exchange tubes 108 to be inserted therethrough. In one or more embodiments, the first slots 102-1 can be made in the first casing 102 during the manufacturing phase, prior to attachment of the first casing 102 to the second casing 104. However, in some embodiments, the first slots 102-1 can also be made in the first casing 102 after attachment of the first casing 102 to the second casing 104 or upon formation of the header 100A. Further, in one or more embodiments, the first casing 102 can have a planar or cuboidal profile having the first slots 102-1 extending through. However, in other embodiments, the first casing 102 can also have other profiles without any limitation.
  • In one or more embodiments, the plurality of fluid distributors 106 can be accommodated at predefined positions on the first casing 102 and/or the second casing 104 such that the plurality of fluid distributors 106 remains in line along a length of the header 100A formed upon attachment of the first casing 102 and the second casing 104. For instance, in one or more embodiments, all the fluid distributors 106 can be accommodated on the second casing 104 such that the fluid distributors 106 remain in line along the length of the second casing 104. Further, the first casing 102 can be attached to the second casing 104 to secure the accommodated fluid distributors 106. In some embodiments, some of the fluid distributors 106 can be accommodated on the second casing 104 and the remaining fluid distributors 106 can be accommodated on the first casing 102 such that fluid distributors 106 accommodated on the first casing 102 and the second casing 104 do not overlap and all the fluid distributors 106 remain in line along a length of the header 100A formed upon attachment of the first casing 102 and the second casing 104. Similarly, in some embodiments, all the fluid distributors 106 can be accommodated on the first casing 102 such that the fluid distributors 106 remain in line along the length of the first casing 102. Further, the first casing 102 can be attached to the second casing 104 to secure the accommodated fluid distributors 106.
  • In one or more embodiments, referring to FIG. 3A and 3B, one side of the second casing 104 can be open and can include a plurality of sections 104-1 configured along the length of the second casing 104. Each of these sections 104-1 can be configured to accommodate at least one of the fluid distributors 106 thereon. Further, the second casing 104 can also include one or more second slots 104-2 configured to be fluidically connected to one or more feeder tubes, where the fluid distributors 106 can be accommodated on the second casing 104 such that an inlet port of the corresponding fluid distributors 106 gets fluidically connected to the corresponding the feeder tube.
  • In one or more embodiments (not shown), one side of the first casing 102 can include a plurality of sections configured along a length of the first casing 102, where each of the sections can be configured to accommodate at least one of the fluid distributors 106 thereon. Further, another side of the first casing 102 can include the plurality of first slots 102-1 (for heat exchange tubes 108) being connected to the plurality of sections. Further, the second casing 104 can include the second slots 104-2 configured to be fluidically connected to the feeder tubes, such that an inlet port of the fluid distributors 106 accommodated on the first casing 102 can get fluidically connected to the corresponding feeder tube upon attachment of the first casing 102 and the second casing 104.
  • In addition, in one or more embodiments, the distributor assembly 100 can include one or more connector tubes 110, each configured to be at least partially disposed through the second casing 104 or within the header 100A via one of the second slots 104-2. Further, a first end of the disposed connector tube 110 can be configured to be fluidically connected to the inlet port of the accommodated fluid distributor 106 and a second end of the corresponding connector tube 110 can be configured to be fluidically connected to one of the feeder tubes.
  • In one or more embodiments, the assembly 100 can include one or more isolators 112, each configured to be coaxially positioned between the sections 104-1 or the adjacent fluid distributors 106 and at extremen ends to correspondingly form one or more compartments (C) within the header 100A upon attachment of the first casing 102 and the second casing 104 as shown in FIG. 1D, such that one of the fluid distributors 106 remains within each of the formed compartments C. In one or more embodiments, the isolators 112 can be a solid member having a predefined thickness and predefined profile based on a cross-sectional inner profile of the formed header 100A, such that the isolators 112 can be coaxially placed and fitted within header 100A while preventing any leakage between the adjacent compartments C upon brazing.
  • In one or more embodiments, once the fluid distributors 106, the plurality of heat exchange tubes 108, the isolators 112, and/or the connector tubes 110 are configured within the header/housing 100A upon attachment of the first casing 102 and the second casing 104, the complete assembly 100 can be brazed together to fluidically seal the distributor assembly 100. However, in some embodiments, the distributor assembly 100 may not include the isolators 112 and/or the connector tubes 110, and only the formed header 100A (first casing 102 and second casing 104), the accommodated fluid distributors 106, and the plurality of heat exchange tubes 108 may be brazed to form a leak-proof distributor assembly 100. Accordingly, the brazed distributor assembly 100 can allow the flow of a fluid (refrigerant associated with a refrigerant line or heat exchanger) from the feeder tubes into the plurality of distributors 106 via the second slots 104-2 or the connector tubes 110 and further into the plurality of heat exchange tubes 108 via one or more outlet ports associated with the corresponding fluid distributors 106.
  • In one or more embodiments (not shown), the plurality of sections 104-1 provided on the first casing 102 (not shown) and/or the second casing 104 can have a predefined profile based on an outer profile of the fluid distributors 106 to be accommodated thereon. Further, the first casing 102 and the second casing 104 can have predefined shapes such that opposite ends of the formed header 100A remain closed and the enclosed space is formed therewithin upon attachment of the first casing 102 and the second casing 104. For instance, in one or more embodiments, each of the sections 104-1 can have a substantially curved profile but is not limited to the like.
  • In one or more embodiments, the second casing 104 can have a substantially C-shaped curved cross-section having closed ends, and an open side without or with the plurality of sections 104-1 for accommodating the fluid distributors 106 as shown in FIGs. 3A and 3B. Further, the first casing 102 can have a planar profile having the first slots 102-1 as shown in FIGs. 2A and 2B. The first casing 102 can be attached to the second casing 104 such that a substantially semi-cylindrical-shaped housing is formed. Further, in one or more embodiments (not shown), the second casing 104 can have a substantially C-shaped curved cross-section having closed ends, and an open side without or with the plurality of sections 104-1 for accommodating the fluid distributors 106. Further, the first casing 102 can also have a substantially C-shaped curved cross-section having the first slots 102-1, where the first casing 102 can be attached to the second casing 104 such that a substantially cylindrical-shaped housing is formed. While various embodiments and the figures herein have been described for the casings 102, 104 and the header 100A having a specific shape and cross-section for the sake of brevity, however, the casings 102, 104 and the header 100A can have any other shape and cross-section as well, without any limitations, and all such embodiments are well within the scope of this invention.
  • In one or more embodiments, the first casing 102 can include one or more first fixtures (not shown) and the second casing 104 can include one or more second fixtures (not shown), where the first fixtures can be configured to engage with the second fixtures to enable the attachment of the first casing 102 and the second casing 104. This may allow the first casing 102 and second casing 104 to be temporarily attached and secure the fluid distributors 106 therewithin during the brazing process. In one or more embodiments, the first fixtures and the second fixtures can be configured to be clamped or snap-fitted or slidably engaged. However, the first casing 102 and second casing 104 may also be attached together prior to brazing using any means known in the art without any limitation.
  • Referring to FIG. 4, in one or more embodiments, a first distributor 106-1 among the plurality of distributors 106 can include a hollow tube 402 of a predefined length. The tube 402 can include at least one inlet port 404, and one or more outlet ports 406 configured radially along the outer surface of the tube 402. The outlet ports 406 of the first distributor 100-1 can be fluidically connected to the inlet port(s) 404 via one or more channels (not shown) extending through the tube 402. The first distributor 106-1 can be coaxially configured in one of the sections 104-1 within the header 100A. Further, the inlet port 404 of the first distributor 106-1 can be fluidically connected to the second slot 104-2 of the second casing 104 or to the connector tubes 110 at the second slot 104-2, thereby fluidically connecting the first distributor 106-1 to one of the feeder tubes. Furthermore, the end of the heat exchange tube 108 inserted within the assembly 100 can be in fluidic communication or in front of the outlet ports 406 of the first distributor 106-1 with a gap therebetween to enable the supply of the fluid received from the feeder tube into the corresponding heat exchange tubes 108. In one more embodiments, the size of the outlet ports 406 of the first distributor 106-1 can vary along the length of the tube 402, however, the size of all the outlet ports 406 can also be the same. Further, a gap between the adjacent outlet ports 406 on the tube 402 of the first distributor 106-1 may vary, however, the gap between the adjacent outlet ports 406 may also be the same.
  • Referring to FIG. 5, in one or more embodiments, a second distributor 106-2 among the plurality of distributors 106 can include a plate 502 of a predefined length and a predefined thickness. In one or more embodiment, the plate 502 can be a laminated plate or a perforated plate but is not limited to the like. The plate 502 can include at least one inlet port 504, and one or more outlet ports 506 configured on the outer surface of the plate 502. The outlet ports 506 of the plate 502 can be fluidically connected to the inlet port(s) 504 via one or more channels (not shown) extending through the plate 502. The second distributor 106-2 can be coaxially configured in one of the sections 104-1 within the header 100A. Further, the inlet port 504 of the second distributor 106-2 can be fluidically connected to the second slot 104-2 of the second casing 104 or to the connector tubes 110 at the second slot 104-2, thereby fluidically connecting the second distributor 106-2 to one of the feeder tubes. Furthermore, the end of the heat exchange tube 108 inserted within the assembly 100 can be in fluidic communication or in front of the outlet ports 506 of the first distributor 106-2 with a gap therebetween to enable the supply of the fluid received from the feeder tube into the corresponding heat exchange tubes 108. In one more embodiments, the size of the outlet ports 506 of the second distributor 106-2 can vary along the length of the plate 502, however, the size of all the outlet ports 506 can also be the same. Further, a gap between the adjacent outlet ports 506 on the plate 502 of the second distributor may vary, however, the gap between the adjacent outlet ports 506 may also be the same.
  • In one or more embodiments (not shown), a third distributor among the plurality of distributors 106 can include an enclosure comprising one or more sides and/or one or more surfaces defining a predefined shape and a predefined internal volume. For instance, in a nonlimiting example as shown in FIG. 6, the third distributor 106-3 can have an octagonal cross-section having eight planar sides. The third distributor 106-3 can be configured to fluidically accommodate the end of the plurality of heat exchange tubes 108 through the one or more sides and/or the one or more surfaces of the enclosure 602. In one or more embodiments, the enclosure 602 can include an inlet port 604 and any of the sides or surfaces of the third distributor 106-3 can include the outlet ports 606 being internally connected to the inlet port 604.
  • The third distributor can be coaxially configured in one of the sections 104-1 within the header 100A. Further, the inlet port of the third distributor can be fluidically connected to the second slot of the second casing 104 or to the connector tubes 110 at the second slot, thereby fluidically connecting the third distributor to one of the feeder tubes. Furthermore, the end of the heat exchange tube inserted within the assembly 100 can be in fluidic communication or in front of the outlet ports of the first distributor with a gap therebetween to enable the supply of the fluid received from the feeder tube into the corresponding heat exchange tubes 108. In one more embodiments, the size of the outlet ports of the third distributor can vary along the length of the plate, however, the size of all the outlet ports can also be the same. Further, a gap between the adjacent outlet ports on the plate of the third distributor may vary, however, the gap between the adjacent outlet ports may also be the same.
  • While various embodiments herein have been described for the fluid distributors having a tubular design or a plate-type design, however, any other type of fluid distributor known in the art may also be employed in the assembly as well, without any limitations, and all such embodiments are well within the scope of this invention.
  • It is to be appreciated that the flexibility to allow the use of different fluid distributors having different fluid distribution configurations within the assembly can facilitate independently customizing and optimizing the flow of the fluid (refrigerant) into the ports associated with each of the heat exchange tubes being connected to the assembly length to compensate for flow irregularities or pressure drop and achieve even distributed flow across the heat exchanger.
  • Thus, this invention overcomes the challenges associated with existing heat exchangers, by providing a simple, efficient, cost-effective, and easy-to-assemble fluid distribution assembly for heat exchangers, which uniformly supplies fluid (refrigerant) to the ports of the heat exchange tubes. In addition, this assembly can be easily manufactured and assembled with minimal complexity. Additionally, the assembly can provide the flexibility to use different types of fluid distributors (having different distribution configurations) within the same assembly.
  • While the invention has been described with reference to exemplary embodiments, it will be understood by those skilled in the art that various changes may be made without departing from the scope of the invention as defined by the appended claims. Modifications may be made to adopt a particular situation or material to the teachings of the invention without departing from the scope thereof. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed, but that the invention includes all embodiments falling within the scope of the invention as defined by the appended claims.
  • In interpreting the specification, all terms should be interpreted in the broadest possible manner consistent with the context. In particular, the terms "comprises" and "comprising" should be interpreted as referring to elements, components, or steps in a non-exclusive manner, indicating that the referenced elements, components, or steps may be present, or utilized, or combined with other elements, components, or steps that are not expressly referenced. Where the specification claims refer to at least one of something selected from the group consisting of A, B, C ....and N, the text should be interpreted as requiring only one element from the group, not A plus N, or B plus N, etc.

Claims (15)

  1. A fluid distributor assembly (100) for a heat exchanger, the assembly comprising:
    a first casing (102);
    a second casing (104) configured to be removably attached to the first casing such that a header (100A) is formed having an enclosed space therewithin; and
    a plurality of fluid distributors (106) configured to be removably accommodated on one or more of the first casing and the second casing, wherein at least two fluid distributors among the plurality of fluid distributors have different distribution configurations,
    wherein the first casing and the second casing are attached to secure the accommodated distributors within the formed header.
  2. The fluid distributor assembly (100) of claim 1, wherein the plurality of fluid distributors (106) are accommodated at predefined positions on the first casing (102) and/or the second casing (104) such that the plurality of fluid distributors remains in line along a length of the header (100A) formed upon attachment of the first casing and the second casing.
  3. The fluid distributor assembly (100) of any one of claims 1 and 2, wherein the fluid distributor assembly or the header (100A) is configured to be fluidically connected to a plurality of heat exchange tubes (108) associated with a heat exchanger.
  4. The fluid distributor assembly (100) of any one of claims 1 to 3, wherein the first casing (102) comprises a plurality of first slots (102-1) configured to receive an end of the plurality of heat exchange tubes (108), such that the plurality of heat exchange tubes gets fluidically connected to at least one of the accommodated fluid distributors (106) upon attachment of the first casing and the second casing (104).
  5. The fluid distributor assembly (100) of any one of claims 1 to 4, wherein the second casing (104) comprises one or more second slots configured to be fluidically connected to one or more feeder tubes, wherein the plurality of fluid distributors (106) are accommodated on the second casing such that an inlet port of the corresponding fluid distributors gets fluidically connected to the corresponding the feeder tube; or
    wherein the second casing comprises one or more second slots (104-2) configured to be fluidically connected to one or more feeder tubes, wherein the plurality of fluid distributors are accommodated on the first casing (102) such that an inlet port of the corresponding fluid distributors gets fluidically connected to the corresponding the feeder tube upon attachment of the first casing and the second casing.
  6. The fluid distributor assembly (100) of any one of claims 1 to 5, wherein the fluid distributor assembly comprises one or more connector tubes (110), each configured to be at least partially disposed through the second casing (104) or within the header (100A) via one of the second slots (104-2), wherein a first end of the disposed connector tube is configured to be fluidically connected the inlet port of the accommodated fluid distributor (106) and a second end of the corresponding connector tube is configured to be fluidically connected to one of the feeder tubes,
    optionally wherein one side of the second casing is open and comprises a plurality of sections (104-1) configured along a length of the second casing, wherein each of the sections is configured to accommodate at least one of the fluid distributor thereon; or
    wherein one side of the first casing (102) comprises a plurality of sections configured along a length of the first casing and another side of the first casing comprises the plurality of first slots (102-1) connected to the plurality of sections, wherein each of the sections is configured to accommodate at least one of the fluid distributor thereon.
  7. The fluid distributor assembly (100) of any one of claims 1 to 6, wherein the fluid distributor assembly comprises one or more isolators (112), each configured to be coaxially positioned between the adjacent sections (104-1) and/or at extreme ends of the corresponding casings to fluidically isolate each of the sections and correspondingly form one or more compartments (C) and the enclosed space within the header (100A) upon attachment of the first casing (102) and the second casing (104).
  8. The fluid distributor assembly (100) of any one of claims 1 to 7, wherein the header (100A), the accommodated fluid distributors (106), the plurality of heat exchange tubes (108), the isolators (112), and the connector tubes are brazed together to fluidically seal the fluid distributor assembly,
    optionally wherein the brazed fluid distributor assembly allows flow of a fluid from the feeder tubes into the plurality of distributors via the one or more second slots (104-2) or the connector tubes and further into the plurality of heat exchange tubes via one or more outlet ports associated with the corresponding distributors.
  9. The fluid distributor assembly (100) of any one of claims 1 to 8, wherein the plurality of sections (104-1) have a predefined profile based on an outer profile of the fluid distributors (106) to be accommodated thereon, wherein the first casing (102) and the second casing (104) have predefined shapes such that opposite ends of the formed header (100A) remains closed and the enclosed space is formed therewithin upon attachment of the first casing and the second casing.
  10. The fluid distributor assembly (100) of any one of claims 1 to 9, wherein each of the sections (104-1) have a substantially curved profile, wherein the first casing (102) and the second casing (104) have predefined shapes such that opposite ends of the formed header (100A) remains closed and the enclosed space is formed therewithin upon attachment of the first casing and the second casing.
  11. The fluid distributor assembly (100) of any one of claims 1 to 10, wherein the first casing (102) has a substantially planar profile comprising the plurality of first slots (102-1) extending therethrough, wherein the first casing and the second casing (104) have predefined shapes such that opposite ends of the formed header remains closed and the enclosed space is formed therewithin upon attachment of the first casing and the second casing.
  12. The fluid distributor assembly (100) of any one of claims 1 to 11, wherein the first casing (102) comprises one or more first fixtures and the second casing (104) comprises one or more second fixtures, wherein the one or more first fixtures are configured to engage with the one or more second fixtures to enable the attachment of the first casing and the second casing,
    optionally wherein the one or more first fixtures and the one or more second fixtures are adapted to be clamped or snap-fitted or slidably engage with each other.
  13. The fluid distributor assembly (100) of any one of claims 1 to 12, wherein a first distributor (106-1) among the plurality of distributor (106) comprises:
    a hollow tube (402) of a predefined length, the tube comprises at least one inlet port (404), and one or more outlet ports (406) configured radially along an outer surface of the tube, wherein the one or more outlet ports are fluidically connected to the at least one inlet port via one or more channels extending through the tube.
  14. The fluid distributor assembly (100) of any one of claims 1 to 13, wherein a second distributor (106-2) among the plurality of distributor (106) comprises:
    a plate (502) of a predefined length and a predefined thickness, the plate comprises at least one inlet port (504), and one or more outlet ports (506) configured on an outer surface of the tube, wherein the one or more outlet ports are fluidically connected to the at least one inlet port via one or more channels extending through the plate,
    wherein the plate is a laminated plate or a perforated plate.
  15. The fluid distributor assembly (100) of any one of claims 1 to 14, wherein a third distributor (106-3) among the plurality of distributor comprises:
    an enclosure comprising one or more sides and/or one or more surfaces defining a predefined shape and a predefined internal volume,
    wherein the third distributor is configured to fluidically accommodate the end of the plurality of heat exchange tubes (108) through the one or more sides and/or the one or more surfaces of the enclosure (602).
EP25161665.2A 2024-03-15 2025-03-04 Fluid distributor assembly for a heat exchanger Pending EP4617605A1 (en)

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US20100206535A1 (en) * 2007-10-12 2010-08-19 Carrier Corporation Heat exchangers having baffled manifolds
US10047984B2 (en) * 2010-06-11 2018-08-14 Keihin Thermal Technology Corporation Evaporator
EP2778595B1 (en) * 2011-11-22 2017-01-04 Daikin Industries, Ltd. Heat exchanger
US10048025B2 (en) * 2013-01-25 2018-08-14 Trane International Inc. Capacity modulating an expansion device of a HVAC system
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US20250290713A1 (en) 2025-09-18

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