WO2025200734A1 - Échangeur de chaleur à bobine et dispositif de chauffage, de ventilation et de climatisation - Google Patents

Échangeur de chaleur à bobine et dispositif de chauffage, de ventilation et de climatisation

Info

Publication number
WO2025200734A1
WO2025200734A1 PCT/CN2025/073097 CN2025073097W WO2025200734A1 WO 2025200734 A1 WO2025200734 A1 WO 2025200734A1 CN 2025073097 W CN2025073097 W CN 2025073097W WO 2025200734 A1 WO2025200734 A1 WO 2025200734A1
Authority
WO
WIPO (PCT)
Prior art keywords
water
heat exchange
coil
water inlet
heat exchanger
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
PCT/CN2025/073097
Other languages
English (en)
Chinese (zh)
Inventor
叶斌
黎举辉
谢绍溶
于丽君
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.)
GD Midea Heating and Ventilating Equipment Co Ltd
Chongqing Midea General Refrigeration Equipment Co Ltd
Hefei Midea Heating and Ventilating Equipment Co Ltd
Original Assignee
GD Midea Heating and Ventilating Equipment Co Ltd
Chongqing Midea General Refrigeration Equipment Co Ltd
Hefei Midea Heating and Ventilating Equipment Co Ltd
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 GD Midea Heating and Ventilating Equipment Co Ltd, Chongqing Midea General Refrigeration Equipment Co Ltd, Hefei Midea Heating and Ventilating Equipment Co Ltd filed Critical GD Midea Heating and Ventilating Equipment Co Ltd
Publication of WO2025200734A1 publication Critical patent/WO2025200734A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D19/00—Details
    • F24D19/0002—Means for connecting central heating radiators to circulation pipes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D19/00—Details
    • F24D19/08—Arrangements for drainage, venting or aerating
    • F24D19/082—Arrangements for drainage, venting or aerating for water heating systems
    • F24D19/083—Venting arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D19/00—Details
    • F24D19/08—Arrangements for drainage, venting or aerating
    • F24D19/082—Arrangements for drainage, venting or aerating for water heating systems
    • F24D19/088—Draining arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D3/00—Hot-water central heating systems
    • F24D3/10—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system
    • F24D3/1058—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system disposition of pipes and pipe connections
    • F24D3/1066—Distributors for heating liquids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F11/00—Arrangements for sealing leaky tubes and conduits
    • 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
    • F28F9/001—Casings in the form of plate-like arrangements; Frames enclosing a heat exchange core
    • 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
    • F28F9/0219—Arrangements for sealing end plates into casing or header box; Header box sub-elements

Definitions

  • the present application relates to the technical field related to HVAC components, and in particular to a coil heat exchanger and HVAC equipment.
  • the main water distribution and collection scheme of fan coil units is: the water inlet pipe of the main system is connected to the water distribution joint, and water enters the water distribution joint from the water inlet pipe; the water distribution joint is connected to the water inlet branch pipes of each branch, and water is diverted to each water inlet branch pipe through the water distribution joint; each water inlet branch pipe is connected to the heat exchange pipe of each branch, and water flows from each branch pipe into the heat exchange pipe corresponding to each flow path; each water outlet branch pipe is connected to the heat exchange pipe of each flow path and is connected to the water collection joint, and water flows out of the heat exchange pipe through each water outlet branch pipe and is collected at the water collection joint; the water collection joint is connected to the water outlet pipe of the main system, and water flows into the water outlet pipe of the main system through the water collection joint and returns to the main system.
  • the purpose of this application is to at least alleviate the problem of complex structure and low assembly efficiency of water distribution and collection components. This purpose is achieved through the following technical solutions:
  • the first aspect of the present application proposes a coil heat exchanger, including a water distribution assembly and a heat exchange assembly, wherein the water distribution assembly has a water inlet channel and a water outlet channel that are isolated from each other; the heat exchange assembly includes fins and multiple coils, each coil has a water inlet end and a water outlet end, the water inlet ends of the multiple coils are respectively connected to the water distribution assembly and respectively communicated with the water inlet channel, and the water outlet ends of the multiple coils are respectively connected to the water distribution assembly and respectively communicated with the water outlet channel, and the fins are connected to the coils.
  • the water inlets of the multiple coils of the heat exchange assembly are connected through the water inlet channel, the water outlets of the multiple coils are connected through the water outlet channel, and the water inlet channel and the water outlet channel are integrated on the water distribution assembly.
  • the coil heat exchanger has a simple structure, fewer parts, and is easy to assemble, which improves the processing and assembly efficiency of the coil heat exchanger and reduces production costs.
  • coil heat exchanger according to the present application may also have the following additional technical features:
  • the water distribution assembly includes a shell, which has a accommodating cavity, the water inlet channel and the water outlet channel are formed in the accommodating cavity, the shell is arranged at one end of the heat exchange assembly, and a plurality of connecting ports are spaced apart on the side wall of the shell facing the heat exchange assembly, the coil is sealed and connected to the connecting port, and is connected to the accommodating cavity through the connecting port.
  • the multiple connecting ports include a plurality of first connecting ports arranged at intervals and a plurality of second connecting ports arranged at intervals, all of the first connecting ports correspond to the positions of the water inlet channel and are connected to the water inlet channel, the water inlet end of the coil is sealed and connected to the first connecting port, all of the second connecting ports correspond to the positions of the water outlet channel and are connected to the water outlet channel, and the water outlet end of the coil is sealed and connected to the second connecting port.
  • the water inlet ends of the plurality of coils are sealed and connected to the first connecting port in a one-to-one correspondence, and the water outlet ends of the plurality of coils are sealed and connected to the second connecting port in a one-to-one correspondence.
  • a first water return structure is further provided in the shell, and at least one of the multiple coils is a first coil.
  • Each of the first coils includes a first heat exchange tube and a second heat exchange tube.
  • the outlet of the first heat exchange tube and the inlet of the second heat exchange tube are both arranged toward the distribution and collection assembly.
  • the outlet of the first heat exchange tube and the inlet of the second heat exchange tube are connected through the first water return structure, so that the first heat exchange tube and the second heat exchange tube are connected in series.
  • the water inlet channel and the water outlet channel are respectively arranged on both sides of the first water return structure.
  • a accommodating cavity is formed in the shell, and the first water return structure is connected to the inner wall surface of the shell, and divides the accommodating cavity into the water outlet channel and the water inlet channel.
  • the first water return structure is provided with a reflux channel, at least two of the plurality of coils are first coils, and at least two of the first heat exchange tubes are connected to the corresponding second heat exchange tubes through the same reflux channel.
  • the first return water structure is provided with multiple reflux channels, and the reflux channels are provided one-to-one between all the first heat exchange tubes and the corresponding second heat exchange tubes.
  • the first water return structure includes a plurality of protrusions arranged at intervals, adjacent protrusions are connected by partitions, the protrusions and the partitions are both connected to the inner wall surface of the shell, and each protrusion is provided with the return channel.
  • the first water return structure is an integrated structure
  • the heat exchange assembly further includes a shell, and the sealing plate is connected to an end surface of the shell.
  • an end plate is provided at one end of the shell, and the sealing plate is connected to the end surface of the shell through the end plate.
  • the sealing plate is an integral structure.
  • the water distribution assembly further includes a sealing gasket, which is sealingly disposed between the sealing plate and the shell body.
  • the sealing gasket is provided with multiple first through-holes corresponding to the position of the water inlet channel, and the sealing gasket is provided with multiple second through-holes corresponding to the position of the water outlet channel.
  • the multiple first through-holes correspond one-to-one with the multiple first connecting ports and are coaxially arranged.
  • the water inlet ends of the multiple coils pass through the first connecting ports one-to-one and are sealed with the first through-holes.
  • the multiple second through-holes correspond one-to-one with the multiple second connecting ports and are coaxially arranged.
  • the water outlet ends of the multiple coils all pass through the second connecting ports one-to-one and are sealed with the second connecting ports.
  • the plurality of coils are connected to the sealing gasket and the sealing plate by expansion joints.
  • the water distribution assembly further includes an inlet joint and an outlet joint, both of which are connected to the shell body, the inlet joint is connected to the water inlet channel, and the outlet joint is connected to the water outlet channel.
  • the water inlet connector and the shell body are an integral structure
  • the water outlet joint and the shell body are an integral structure.
  • the water distribution assembly further includes an exhaust assembly, the exhaust assembly is in communication with the water outlet channel, and the water outlet connector and/or the housing are connected to the exhaust assembly;
  • the water distribution and collection assembly further includes a drainage assembly, the drainage assembly is communicated with the water inlet channel, and the drainage assembly is connected to the water inlet joint and/or the shell.
  • FIG1 is a schematic structural diagram of a coil heat exchanger according to some embodiments of the present application.
  • Figure 2 is a split schematic diagram of Figure 1;
  • FIG3 is a schematic diagram of FIG2 from another perspective
  • FIG4 is a schematic diagram of a partial flow path of the coil heat exchanger shown in FIG3 ;
  • FIG5 is a split schematic diagram of a coil heat exchanger according to some embodiments of the present application.
  • FIG6 is a schematic diagram of a partial flow path of the coil heat exchanger shown in FIG5 ;
  • FIG9 is a split schematic diagram of a coil heat exchanger according to some embodiments of the present application.
  • FIG10 is a schematic diagram showing the flow path of the coil heat exchanger shown in FIG9 ;
  • FIG11 is a split schematic diagram of a coil heat exchanger provided in some embodiments of the present application.
  • FIG12 is a split schematic diagram of a coil heat exchanger provided in some embodiments of the present application.
  • FIG13 is a schematic structural diagram of a coil heat exchanger provided in some embodiments of the present application.
  • FIG14 is a partial enlarged view of FIG13
  • FIG15 is a schematic diagram of an interference seal between a sealing plate and a coil of a coil heat exchanger provided by some embodiments of the present application.
  • FIG16 is a schematic diagram of a coil heat exchanger provided by some embodiments of the present application, wherein a sealing plate and a coil are sealed by a sealing ring;
  • FIG17 is a schematic diagram of a coil heat exchanger provided by some embodiments of the present application, wherein a sealing plate and a coil are sealed by a sealing gasket;
  • FIG18 is an enlarged view of the T portion of FIG17 ;
  • FIG19 is a split schematic diagram of the coil heat exchanger shown in FIG17 ;
  • FIG20 is a schematic diagram of the shell body, water inlet connector, and water outlet connector of a coil heat exchanger according to some embodiments of the present application;
  • FIG21 is a schematic diagram of the shell body shown in FIG20 from another perspective
  • FIG22 is a partial cross-sectional view of the assembled shell, water inlet and outlet joints of the coil heat exchanger shown in FIG20 ;
  • FIG23 is a schematic diagram of the shell body, water inlet connector, and water outlet connector of a coil heat exchanger provided in some embodiments of the present application;
  • FIG24 is a schematic diagram of the circumferential frame shown in FIG23 from another perspective
  • FIG25 is a schematic diagram of the shell body, the first water return structure, the water inlet connector, and the water outlet connector of the coil heat exchanger provided in some embodiments of the present application;
  • FIG26 is a schematic diagram of the shell body and the first water return structure shown in FIG25 from another perspective;
  • FIG27 is a split schematic diagram of a coil heat exchanger provided in some embodiments of the present application.
  • FIG28 is a schematic diagram of the assembly of a coil heat exchanger and a fan according to some embodiments of the present application.
  • Coil heat exchanger 100, water distribution assembly; 101, water inlet channel; 102, water outlet channel; 110, shell; 111, shell body; 1111, first opening; 1112, top plate; 1113, circumferential frame; 1114, water inlet hole; 1115, water outlet hole; 1116, sealed connection; 1117, accommodating cavity; 112, sealing plate; 1121, flange; 1122, sealed connection surface; 1123, solder; 1124, sealing ring; 113, first groove; 114, second groove; 115, first communication port; 116, second communication port; 117, third communication port 118, connecting port; 120, first water return structure; 121, reflux channel; 1211, first reflux channel; 1212, second reflux channel; 122, bump; 123, partition; 124, isolation plate; 130, sealing gasket; 131, first through-port; 132, second through-port; 133, third through-port; 134, through-port; 140, water inlet connector; 150, water outlet connector
  • first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates otherwise, terms such as “first”, “second” and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.
  • spatially relative terms may be used herein to describe the relationship of one element or feature relative to another element or feature as shown in the figures, such as “inside,” “outside,” “inside,” “outside,” “below,” “beneath,” “above,” and the like.
  • Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is flipped over, an element described as “below” or “beneath” another element or feature would then be oriented “above” or “above” the other element or feature.
  • the example term “below” can encompass both above and below orientations.
  • the main water distribution and collection scheme for coil heat exchangers is as follows: the main system's water inlet pipe is connected to a water distribution joint, and water enters the water distribution joint from the water inlet pipe; the water distribution joint is connected to the water inlet branches of each branch, and water is diverted to each water inlet branch through the water distribution joint; each water inlet branch is connected to the heat exchange tube of each branch, and water flows from each branch into the heat exchange tube of the corresponding flow path; each water outlet branch is connected to the heat exchange tube of each flow path and connected to a water collection joint, and water flows from the heat exchange tube through each water outlet branch and is then collected at the water collection joint; the water collection joint is connected to the main system's water outlet pipe, and water flows through the water collection joint into the main system's water outlet pipe and returns to the main system.
  • the total number of parts of the water distribution and collection components is large, the structure is relatively complex, and the assembly efficiency is low.
  • a coil heat exchanger 10 comprising a manifold assembly 100 and a heat exchange assembly 200.
  • the manifold assembly 100 includes an inlet channel 101 and an outlet channel 102, with the outlet channel 102 being isolated from the inlet channel 101.
  • the heat exchange component 200 includes multiple coils 210, each coil 210 has a water inlet end 211 and a water outlet end 212, the pipe opening on the water inlet end 211 is the water inlet, and the pipe opening on the water outlet end 212 is the water outlet, the sub-collection component 100 is connected to the water inlet end 211 of each coil 210, and the water inlet of each coil 210 is connected to the water inlet channel 101 of the sub-collection component 100, the sub-collection component 100 is also connected to the water outlet end 212 of each coil 210, and the water outlet of each coil 210 is connected to the water outlet channel 102 of the sub-collection component 100.
  • the coil heat exchanger 10 is usually used in conjunction with a fan 20.
  • the fan 20 can be set on one side of the coil heat exchanger 10.
  • the fan 20 is used to drive the air flow so that the air flow flows through the coil heat exchanger 10.
  • the air flow exchanges heat with the water in the coil heat exchanger 10.
  • the heat exchange assembly 200 is the main component for performing heat exchange. Specifically, the heat exchange assembly 200 performs heat exchange between water flowing within the heat exchange assembly 200 and a medium such as air outside the heat exchange assembly 200.
  • the multiple coils 210 refer to two or more coils 210. Each coil 210 can be understood as a set of pipes flowing from the water inlet channel 101 to the water outlet channel 102. Each coil 210 can have one, two, or more water inlets, and each set of coils 210 can also have one, two, or more water outlets. For example, in some embodiments, at least one coil 210 has a single water inlet pipe and multiple water outlet pipes, and the multiple outlet pipes are all connected to and communicate with the water inlet pipe. Among them, each coil 210 has at least one bend and reflux. Simply put, each coil 210 includes at least two heat exchange sections, and the water flow directions of the two heat exchange sections are roughly opposite. More specifically, it can be understood that each coil 210 includes at least one long U-shaped tube.
  • the water distribution assembly 100 may include a housing 110, wherein the water inlet channel 101 and the water outlet channel 102 are both disposed within the housing 110, and the water inlet channel 101 and the water outlet channel 102 are independent channels.
  • the water distribution assembly 100 may be provided with a water inlet connector 140 and a water outlet connector 150, wherein the water inlet connector 140 may be connected to the portion of the water distribution assembly 100 that forms the water inlet channel 101 and communicates with the water inlet channel 101, and the water outlet of the heat exchange water supply system is connected to the water inlet connector 140 and supplies water to the water inlet channel 101 through the water inlet connector 140; the water outlet connector 150 may be connected to the portion of the water distribution assembly 100 that forms the water outlet channel 102 and communicates with the water outlet channel 102, and the water inlet of the heat exchange water supply system is connected to the water outlet connector 150, and the water flow in the heat exchange assembly 200 flows back to the heat exchange water supply system through the water outlet connector 150.
  • the heat exchange water supply system is used to heat or cool the water flow.
  • the heat exchange water supply system heats the water flow to provide hot water to the heat exchange component 200.
  • the heat exchange water supply system can specifically be provided with a heating device, such as a gas heating device, an electric heating pipe, etc., to heat the water flow; when the heat exchange component 200 is used to provide cooling for the environment, the heat exchange water supply system can cool the water flow.
  • the heat exchange water supply system can specifically be provided with a cooling device, such as an evaporator, etc., to cool the water flow.
  • the water collection assembly 100 can be provided with multiple first connecting ports 115 corresponding to the water inlet channel 101.
  • the multiple first connecting ports 115 are connected to the water inlet ends 211 in the multiple coils 210.
  • one first connecting port 115 can be connected to the water inlet end 211 in one coil 210.
  • the water inlet end 211 in the coil 210 can be plugged and sealed with the first connecting port 115.
  • the water inlet end 211 in the coil 210 can be inserted into the first connecting port 115 and sealed with the first connecting port 115.
  • the water distribution and collection assembly 100 may be provided with a plurality of second communication ports 116 corresponding to the water outlet channel 102.
  • the plurality of second communication ports 116 are connected to the water outlet ends 212 of the plurality of coils 210. Specifically, one second communication port 116 is connected to the water outlet end 212 of one coil 210. Specifically, the water outlet end 212 of the coil 210 may be plugged and sealedly connected to the second communication port 116. For example, the water outlet end 212 of the coil 210 may be inserted into the second communication port 116 and sealedly connected to the second communication port 116. After the water for heat exchange flows into the water inlet channel 101, it is divided through the water inlet channel 101 to the water inlet end 211 of each coil 210. Then, after flowing through each coil 210, it is collected at the water outlet end 212 of each coil 210 and flows out through the water outlet channel 102. The water exchanges heat with the air when flowing through each coil 210 .
  • the water inlets of the multiple coils 210 of the heat exchange assembly 200 are all connected through the water inlet channel 101, and the water outlets of the multiple coils 210 are all connected through the water outlet channel 102.
  • the water inlet channel 101 and the water outlet channel 102 are integrated into the water distribution assembly 100.
  • the heat exchanger has a simple structure, fewer parts, and is easy to assemble, which improves the processing and assembly efficiency of the coil heat exchanger 10 and reduces production costs.
  • the coil heat exchanger is connected to multiple branch pipes through a water distribution joint, and the multiple branch pipes are connected to the water inlet of the heat exchange tube.
  • the water collection joint is connected to the multiple branch pipes
  • the heat exchange tube is connected to the water collection joint through the branch pipe to realize the collection and distribution of water in multiple heat exchange tubes.
  • the water diversion joint, water collection joint, and branch pipes are independent components. Therefore, assembly is required between the water diversion joint and the branch pipes to which it is connected, between the water outlet structure and the branch pipes to which it is connected, between the branch pipes and the inlet of the heat exchange tubes, and between the branch pipes and the outlet of the heat exchange tubes.
  • the water diversion and collection assembly occupies a large amount of ineffective space, resulting in a cluttered and aesthetically pleasing design that is not conducive to the integrated design of the coil heat exchanger.
  • the water flowing into the heat exchange tube needs to flow through the branch pipe before entering the heat exchange tube after flowing out of the water collecting joint, and the water flowing out of the heat exchange tube also needs to pass through the branch pipe before flowing back.
  • the heat exchange component has a long pipe path and large water resistance.
  • any heat exchange tube of the multiple heat exchange sections is arranged along the first direction X, the first ends of all the heat exchange tubes along the first direction X can be roughly aligned, the second ends of all the heat exchange tubes along the first direction X are roughly aligned, and the multiple heat exchange tubes are arranged at intervals along the second direction Y and the third direction Z.
  • the water collection assembly 100 is arranged at the first end of the heat exchange tube along the first direction X.
  • the first ends of the heat exchange tubes of the first heat exchange section are all connected to the water inlet channel 101 of the water collection assembly 100.
  • each coil 210 when there are two refluxes, each coil 210 includes three U-shaped tubes, the outlet of the first long U-shaped tube 201 is connected and communicated with the inlet of the second long U-shaped tube 202 at the first end, the outlet of the second long U-shaped tube 202 is connected and communicated with the inlet of the third long U-shaped tube 203 at the first end, the two parallel sides of the first long U-shaped tube 201 form the first heat exchange section and the second heat exchange section of the coil 210, the two parallel sides of the second long U-shaped tube 202 form the third heat exchange section and the fourth heat exchange section of the coil 210, and the two parallel sides of the third long U-shaped tube 203 form the fifth heat exchange section and the sixth heat exchange section of the coil 210.
  • first end of the upstream heat exchange section and the first end of the downstream heat exchange section can be connected by an additional joint, such as a semicircular or U-shaped joint.
  • a first return water structure 120 can also be provided on the water distribution assembly 100 to connect the first end of the upstream heat exchange section and the first end of the downstream heat exchange section through the first return water structure 120.
  • the upstream and downstream in the coil 210 are defined with reference to the direction of water flow, wherein, along the direction of water flow, the part close to the inlet is the upstream, and the part close to the outlet is the downstream, that is, the water flows from upstream to downstream.
  • a first return water structure 120 is further provided in the sub-collection assembly 100, and at least one coil 210 among the multiple coils 210 is a first coil 220.
  • Each first coil 220 includes a first heat exchange tube 221 and a second heat exchange tube 222.
  • the first heat exchange tube 221 and the second heat exchange tube 222 are arranged in parallel, and the outlet of the first heat exchange tube 221 and the inlet of the second heat exchange tube 222 are both arranged toward the first end of the sub-collection assembly 100.
  • the outlet of the first heat exchange tube 221 and the inlet of the second heat exchange tube 222 are connected through the first return water structure 120, so that the first heat exchange tube 221 and the second heat exchange tube 222 are connected in series.
  • the water inlet channel 101 can be disposed on one side of the first water return structure 120, and the water outlet channel 102 can be disposed on the other side of the first water return structure 120.
  • the first water return structure 120 is disposed between the water inlet channel 101 and the water outlet channel 102, and isolates the water inlet channel 101 from the water outlet channel 102.
  • the water distribution assembly 100 is formed with a receiving chamber 1117, and the first water return structure 120 is disposed in the receiving chamber 1117, and the first water return structure 120 separates the receiving chamber 1117 into the water outlet channel 102 and the water inlet channel 101.
  • the water inlet of the first coil 220 can be connected to the inlet of the first heat exchange tube 221 in the first coil 220
  • the outlet of the first heat exchange tube 221 can be connected to the inlet of the second heat exchange tube 222 of the first coil 220 through the first return water structure 120
  • the outlet of the second heat exchange tube 222 is connected to the water outlet of the first coil 220 of the first coil 220.
  • the first coil 220 is actually a coil 210 with two or more recirculations. Some of the coils 210 can be configured as the first coil 220, while others can be configured as coils 210 with only one recirculation. Alternatively, all coils 210 can be configured as the first coil 220.
  • the first heat exchange tube 221 and the second heat exchange tube 222 can be understood as two heat exchange tubes that are interconnected and communicated at the first ends in the first direction X.
  • the heat exchange tube in the second heat exchange section i.e., the outlet section of the first long U-shaped tube 201
  • the heat exchange tube in the third heat exchange section i.e., the inlet section of the second long U-shaped tube 202
  • the first heat exchange tube 221 and the second heat exchange tube 222 can serve as the first heat exchange tube 221 and the second heat exchange tube 222.
  • first heat exchange section and the second heat exchange section are long U-shaped tubes connected as one at the second ends
  • third heat exchange section and the fourth heat exchange section are U-shaped tubes connected as one at the second ends
  • the outlet of the upstream long U-shaped tube and the inlet of the downstream U-shaped tube are connected at the first end through the first water return structure 120.
  • the heat exchange tubes in the second heat exchange section i.e., the outlet section of the first long U-shaped tube 201 and the heat exchange tubes in the third heat exchange section (i.e., the inlet section of the second long U-shaped tube 202) form the first heat exchange tube 221 and the second heat exchange tube 222
  • the heat exchange tubes in the fourth heat exchange section the outlet section of the second long U-shaped tube 202 and the heat exchange tubes in the fifth heat exchange section (the inlet section of the third long U-shaped tube 203) form the heat exchange tubes in the heat exchange section.
  • the first heat exchange tube 221 and the second heat exchange tube 222 in other words, the first heat exchange section and the second heat exchange section are long U-shaped tubes connected as one at the second end, the third heat exchange section and the fourth heat exchange section are U-shaped tubes connected as one at the second end, and the fifth heat exchange section and the sixth heat exchange section are U-shaped tubes connected as one at the second end.
  • the outlet of the upstream long U-shaped tube and the inlet of the downstream U-shaped tube are connected at the first end through the first return water structure 120.
  • all heat exchange tubes in the heat exchange assembly 200 that need to be interconnected at the first end can be connected through the same first water return structure 120.
  • the first water return structure 120 can be provided with multiple spaced return channels 121 to connect the multiple groups of first heat exchange tubes 221 and second heat exchange tubes 222 respectively through different return channels 121. If two groups of the multiple groups of first heat exchange tubes 221 and second heat exchange tubes 222 have the same pressure difference or the pressure difference between the two groups is the same, a larger return channel 121 can also be provided on the first water return structure 120 to connect the multiple groups of first heat exchange tubes 221 and second heat exchange tubes 222 through the single return channel 121.
  • the first water return structure 120 is provided with a reflux channel 121 , at least two of the multiple coils 210 are first coils 220 , and at least two first heat exchange tubes 221 are connected to corresponding second heat exchange tubes 222 through the same reflux channel 121 .
  • first heat exchange tubes 221 and second heat exchange tubes 222 are connected through a first return channel 1211.
  • Multiple first heat exchange tubes 221 are isobaric channels
  • multiple second heat exchange tubes 222 are isobaric channels.
  • the first heat exchange tubes 221 and second heat exchange tubes 222 in the same return flow in multiple first coils 220 can be connected through the same return channel 121.
  • the number of return channels 121 can be equal to the number of return flows in the first coil 220 minus one.
  • the first water return structure 120 can be provided with a return channel 121.
  • the heat exchange tubes in the second heat exchange section and the heat exchange tubes in the third heat exchange section are connected through this return channel 121.
  • the first water return structure 120 can be provided with two independent reflux channels 121.
  • the heat exchange tubes in the second heat exchange section are connected to the heat exchange tubes in the third heat exchange section through one of the reflux channels 121, and the heat exchange tubes in the fourth heat exchange section are connected to the heat exchange tubes in the fifth heat exchange section through the other reflux channel 121.
  • the plurality of coils 210 are first coils 220 with two refluxes.
  • each first coil 220 includes a set of first heat exchange tubes 221 and second heat exchange tubes 222, and the first water return structure 120 is provided with a reflux channel 121 corresponding to each first coil 220.
  • Figures 5 and 6 not only include first coils with two refluxes, but also at least one coil 210 is a U-shaped tube, meaning that the coil 210 has only one reflux.
  • the water flow within the coil 210 flows along paths B and D shown in Figure 5 . This process can also be understood with reference to the water flow path A3 in Figure 6 .
  • each first coil 220 includes two groups of first heat exchange tubes 221 and second heat exchange tubes 222, and the first return water structure 120 is respectively provided with two reflux channels 121 corresponding to each first coil 220.
  • the first water return structure 120 includes multiple protrusions 122 arranged at intervals, and adjacent protrusions 122 are connected by partitions 123.
  • the protrusions 122 and partitions 123 are both connected to the inner wall surface of the housing 110.
  • Each protrusion 122 is provided with a reflux channel 121.
  • the protrusions 122 and the reflux channels 121 can be provided in a one-to-one correspondence, or multiple reflux channels 121 can be provided on one protrusion 122 as needed.
  • the protrusions 122 can be tilted in their length relative to the top plate 1112 of the shell body 111 (a portion of the housing 110 of the water distribution and collection assembly 100). Furthermore, along the height direction of the shell body 111 (refer to the third direction Z), the tilt directions of two adjacent protrusions 122 can be opposite. This staggered arrangement of adjacent protrusions 122 allows multiple protrusions 122 to be arranged in a smaller space, thereby enabling the installation of a larger number of reflux channels 121.
  • the partitions 123 are sealed against the protrusions 122.
  • the partitions 123 and protrusions 122 can be integrally formed, or the partitions 123, protrusions 122, and shell body 111 can also be integrally formed.
  • a reflux channel 121 can be provided for both the first heat exchange tube 221 and the second heat exchange tube 222 at the first end of each reflux.
  • the first water return structure 120 is provided with two reflux channels 121 corresponding to the first coil 220.
  • the heat exchange tubes in the second heat exchange section are connected to the heat exchange tubes in the third heat exchange section through one of the reflux channels 121, and the heat exchange tubes in the fourth heat exchange section are connected to the heat exchange tubes in the fifth heat exchange section through the other reflux channel 121.
  • the first water return structure 120 of this embodiment may be an integrated structure.
  • the first water return structure 120 may be an integral structure formed by injection molding or a integral structure formed by welding.
  • the water distribution assembly 100 includes a housing 110, within which is formed a receiving chamber 1117, which is divided into an inlet channel 101 and an outlet channel 102.
  • a housing 110 within which is formed a receiving chamber 1117, which is divided into an inlet channel 101 and an outlet channel 102.
  • an isolation plate 124 can be directly disposed within the receiving chamber 1117, thereby dividing the receiving chamber 1117 into the inlet channel 101 and the outlet channel 102.
  • the first water return structure 120 can be connected to the inner wall surface of the housing 110, thereby dividing the receiving chamber 1117 into the inlet channel 101 and the outlet channel 102.
  • the housing 110 is connected to one end of the heat exchange assembly 200, i.e., one end of the outer shell 230.
  • a plurality of communication ports 118 are provided on the side wall of the shell 110 facing the outer shell 230 at positions corresponding to the water inlet channel 101 , and the communication ports 118 are connected to the accommodating cavity 1117 .
  • the coil 210 is sealedly connected to the communication ports 118 and is connected to the accommodating cavity 1117 through the communication ports 118 .
  • a portion of the communication ports 118 can be provided corresponding to the water inlet channel 101.
  • These communication ports 118 are defined as first communication ports 115. All first communication ports 115 are spaced apart.
  • the water inlet ends 211 of all coils 210 can be sealed and connected to the first communication ports 115 and communicate with the water inlet channel 101 through the first communication ports 115. At least a portion of the remaining communication ports 118 can be provided corresponding to the water outlet channel 102.
  • These communication ports 118 are defined as second communication ports 116. All second communication ports 116 are spaced apart.
  • the water outlet ends 212 of all coils 210 can be sealed and connected to the second communication ports 116 and communicate with the water outlet channel 102 through the second communication ports 116.
  • each first communication port 115 can be sealedly connected to the water inlet end 211 of a coil 210 and communicate with the water inlet channel 101. That is, the water inlet ends 211 of all coils 210 are connected to all first communication ports 115 in a one-to-one correspondence, and the circumferential sidewalls of the water inlet ends 211 are sealedly connected to the circumferential walls of the first communication ports 115 to prevent water leakage between the water inlet ends 211 and the first communication ports 115. At the same time, the water inlet ends 211 are communicated with the water inlet channel 101.
  • a plurality of second communication ports 116 are provided on the sidewall of the housing 110 facing the outer shell 230 at positions corresponding to the water outlet channel 102.
  • All second communication ports 116 are spaced apart, and each second communication port 116 is sealedly connected to the water outlet end 212 of a coil 210 and communicates with the water outlet channel 102. That is to say, the water outlet ends 212 in all the coils 210 are connected to all the second connecting ports 116 one by one, and the circumferential side walls of the water outlet ends 212 are sealedly connected to the circumferential walls of the second connecting ports 116 to prevent water from leaking between the water outlet ends 212 and the second connecting ports 116. At the same time, the water outlet ends 212 are connected to the water outlet channel 102.
  • the shell 110 of this embodiment may be substantially rectangular or elliptical, which matches the end of the heat exchange assembly 200 .
  • the sidewall of the housing 110 facing the heat exchange assembly 200 may be partially hollowed out to form a first communication port 115 and a second communication port 116.
  • the water inlet end 211 of the coil 210 may be inserted into the corresponding first communication port 115 and sealed with the circumferential inner wall of the first communication port 115.
  • the water outlet end 212 of the coil 210 may be inserted into the corresponding second communication port 116 and sealed with the circumferential inner wall of the second communication port 116.
  • the shell 110 can be an integrally formed structure, a structure connected as one body, or a detachable sealed connection structure.
  • the shell 110 includes a shell body 111 and a sealing plate 112.
  • a first opening 1111 is provided on one side of the shell body 111.
  • a first groove 113 and a second groove 114 are provided on the shell body 111, which are isolated from each other.
  • the notches of the first groove 113 and the second groove 114 are both oriented in the same direction as the first opening 1111.
  • the sealing plate 112 is sealed to the first opening 1111 and encloses the first groove 113 to form the water inlet channel 101, and the second groove 114 to form the water outlet channel 102.
  • the sealing plate 112 is located on the side of the shell body 111 facing the heat exchange component 200, that is, the side facing the outer shell 230. In other words, the sealing plate 112 is the side wall of the shell 110 facing the heat exchange component 200.
  • the sealing plate 112 can be fixedly connected to the outer shell 230 of the heat exchange assembly 200.
  • one end of the outer shell 230 can be an open structure, that is, one end of the outer shell 230 has a second opening.
  • the sealing plate 112 covers the second opening of the outer shell 230 and is fixedly connected to the outer shell 230.
  • the sealing plate 112 can serve as a side plate (i.e., an end plate) of the shell body 111.
  • the sealing plate 112 can be understood as an end plate of the shell body 111.
  • the end surface of the shell 110 can be a solid structure, and the sealing plate 112 is connected to the end surface.
  • the sealing plate 112 can be detachably connected to the outer shell 230 of the heat exchange assembly 200, for example, by screws, snap-fitting, etc., or it can be non-detachably connected. As shown in Figures 1, 2, and 3, the sealing plate 112 can optionally be provided with flanges 1121 on both sides along the width direction (which can be understood with reference to the second direction Y), and the outer shell 230 is positioned and mounted between the two flanges 1121. In addition to positioning the housing 230 , the flange 1121 can also be connected to other structures.
  • the water distribution assembly 100 also includes a sealing gasket 130, which is sealed between the sealing plate 112 and the shell body 111.
  • the sealing gasket 130 covers the first opening 1111.
  • the sealing gasket 130 is provided with a plurality of through-holes 134, which correspond one-to-one to the connecting port 118 and are coaxially arranged.
  • the coil 210 passes through the connecting port 118 and is sealed and connected to the through-hole 134.
  • the inner walls of the first through-hole 131 and the second through-hole 132 of the sealing gasket 130 can be provided with a circumferential sealing groove, and/or, the inner walls of the first connecting port 115 and the second connecting port 116 can also be provided with a circumferential sealing groove, and the outer peripheral wall of the coil 210 can be provided with a sealing ring, and the sealing ring can be correspondingly arranged in the circumferential sealing groove to further improve the sealing effect.
  • the water inlet connector 140 and the water outlet connector 150 and the shell body 111 are all made of metal materials, and the water inlet connector 140 and the water outlet connector 150 and the shell body 111 are integrally formed using metal materials through powder alloy sintering, sand casting, forging, or machining; for another example, the water inlet connector 140 and the water outlet connector 150 and the shell body 111 are made of ceramic, glass, or other materials, and the water inlet connector 140 and the water outlet connector 150 are integrally formed using metal materials through powder alloy sintering, sand casting, forging, or machining.
  • the water inlet connector 140, the water outlet connector 150 and the shell body 111 are integrally formed by sintering or other methods; for another example, the water inlet connector 140, the water outlet connector 150 and the shell body 111 are made of plastic or other materials, and the water inlet connector 140, the water outlet connector 150 and the shell body 111 plastic are integrally formed by injection molding, molding, or 3D printing (3D printing is a type of rapid prototyping technology, also known as additive manufacturing. It is a technology that uses a digital model file as a basis and uses powdered metal or plastic and other adhesive materials to construct objects by printing layer by layer). In other implementations, the water inlet connector 140, the water outlet connector 150 and the shell body 111 are made of different materials.
  • the metal material can be stainless steel, copper, etc.
  • the water inlet connector 140 and the water outlet connector 150 can be made of the same material or different materials, and the water inlet connector 140 and the shell body 111, as well as the water outlet connector 150 and the shell body 111, can be connected in the same manner or in different manners.
  • the water inlet connector 140 and the water outlet connector 150 are set to be made of the same material and have the same structure, and the water inlet connector 140 and the shell body 111, as well as the water outlet connector 150 and the shell body 111, use the same connection method.
  • the water inlet connector 140 and the water outlet connector 150 can be separately provided and then assembled and connected to the shell body 111.
  • the shell body 111 is provided with a water inlet through-hole 1114, a water inlet channel 101, a return channel 121, a water outlet channel 102, and a water outlet through-hole 1115.
  • the water outlet through-hole 1115 is provided at a position corresponding to the water inlet channel 101 and is in communication with the water inlet channel 101.
  • the water outlet through-hole 1115 is provided at a position corresponding to the water outlet channel 102 and is in communication with the water outlet channel 102.
  • the water inlet connector 140 is sealedly connected to the water inlet through-hole 1114, forming a sealed connection 1116.
  • the water outlet connector 150 is sealedly connected to the water outlet through-hole 1115.
  • the water inlet joint 140 can be welded, riveted, crimped or embedded into the water inlet through-hole 1114 to be sealed and connected with the shell body 111, or it can be sealed and connected with the shell body 111 using rubber rings, rubber gaskets, etc.; similarly, the water outlet joint 150 can be welded, riveted, crimped or embedded into the water outlet through-hole 1115 to be sealed and connected with the shell body 111, or it can be sealed and connected with the shell body 111 using rubber rings, rubber gaskets, etc.
  • the coil heat exchanger 10 has different structures for the heat exchange assembly 200 depending on the usage environment and requirements.
  • the heat exchange assembly 200 may be a water distribution assembly 100 without or with the first water return structure 120.
  • the first water return structure 120 may also be different.
  • the water inlet connector 140 and the water outlet connector 150 are configured to be assembled separately from the housing 110, making them universal and standard components suitable for use with different types of housings 111. This allows for large-scale automated mass production of the water inlet connector 140 and the water outlet connector 150, resulting in high efficiency and low cost.
  • a vent assembly 160 is provided on the water distribution assembly 100 to release gas from the water flow path.
  • Vent assembly 160 can communicate with the water outlet channel 102.
  • vent assembly 160 can be provided on the water outlet connector 150.
  • vent assembly 160 can also be provided on the housing 111 , specifically on the top plate 1112 , corresponding to the water outlet channel 102.
  • Vent assembly 160 can be an exhaust valve that can be opened to release gas from the water flow path or closed to seal vent assembly 160 and prevent water leakage.
  • a drain assembly 170 is provided on the water distribution and collection assembly 100, and the vent assembly 160 is used to release water from the water flow path.
  • Drain assembly 170 can be connected to the water inlet channel 101.
  • drain assembly 170 can be installed on the water outlet connector 150.
  • drain assembly 170 can also be installed on the shell body 111, specifically on the top plate 1112, and correspond to the water inlet channel 101.
  • Drain assembly 170 can be a drain valve. Drain assembly 170 can be opened to release air from the water flow path, or closed to seal the drain assembly 170 and prevent water leakage.
  • the positions of the exhaust assembly 160 and the drain assembly 170 can also be interchanged.
  • the exhaust assembly 160 can be arranged above the drain assembly 170.
  • the exhaust effect is better compared to the form in which the exhaust assembly 160 is connected to the water inlet channel 101. This allows more gas in the heat exchange assembly 200 to be discharged, thereby improving the heat exchange efficiency.
  • the drain assembly 170 by connecting the drain assembly 170 with the water inlet channel 101, it is beneficial to drain all the water in the heat exchange assembly 200 when the heat exchange assembly 200 is not in use.
  • an embodiment of the present application also provides a HVAC equipment, including a fan 20 and a coil heat exchanger 10 proposed in this application or any embodiment of the present application, and the fan 20 is arranged on one side of the coil heat exchanger 10.
  • the fan 20 can be arranged on one side of the heat exchange component 200 along the second direction Y, and the flow direction E of the airflow formed by the fan 20 is substantially parallel to the second direction Y.
  • the HVAC equipment may also include other components, such as a heat exchange water supply system.
  • a heat exchange water supply system The connection between the heat exchange water supply system and the coil heat exchanger 10 can be referred to above and will not be repeated here.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

L'invention concerne un échangeur de chaleur à bobine et un dispositif de chauffage, de ventilation et de climatisation. L'échangeur de chaleur à bobine comprend un ensemble collecteur d'eau et un ensemble d'échange de chaleur, un canal d'entrée d'eau et un canal de sortie d'eau qui sont isolés l'un de l'autre étant formés dans l'ensemble collecteur d'eau ; et l'ensemble d'échange de chaleur comprend une pluralité de tubes de bobine, chaque tube de bobine a une extrémité d'entrée d'eau et une extrémité de sortie d'eau, les extrémités d'entrée d'eau de la pluralité de tubes de bobine sont respectivement reliées à l'ensemble collecteur d'eau et en communication respectivement avec le canal d'entrée d'eau, et les extrémités de sortie d'eau de la pluralité de tubes de bobine sont respectivement reliées à l'ensemble collecteur d'eau et en communication respectivement avec le canal de sortie d'eau.
PCT/CN2025/073097 2024-03-29 2025-01-17 Échangeur de chaleur à bobine et dispositif de chauffage, de ventilation et de climatisation Pending WO2025200734A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202410378110.5A CN118208760A (zh) 2024-03-29 2024-03-29 盘管换热器及暖通设备
CN202410378110.5 2024-03-29

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WO2025200734A1 true WO2025200734A1 (fr) 2025-10-02

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PCT/CN2025/073097 Pending WO2025200734A1 (fr) 2024-03-29 2025-01-17 Échangeur de chaleur à bobine et dispositif de chauffage, de ventilation et de climatisation

Country Status (2)

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WO (1) WO2025200734A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118208760A (zh) * 2024-03-29 2024-06-18 合肥美的暖通设备有限公司 盘管换热器及暖通设备
CN118031276A (zh) * 2024-03-29 2024-05-14 合肥美的暖通设备有限公司 分集水组件、盘管换热器及暖通设备

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CN203177338U (zh) * 2013-03-21 2013-09-04 德州中傲空调设备有限公司 3排管三水路干式风机盘管机组
CN203785331U (zh) * 2014-03-06 2014-08-20 广东美的暖通设备有限公司 换热器及具有该换热器的风机盘管
US20170198986A1 (en) * 2016-01-12 2017-07-13 Hussmann Corporation Heat exchanger including coil end close-off cover
CN107504837A (zh) * 2017-09-20 2017-12-22 杭州三花家电热管理系统有限公司 换热器、换热系统及室内采暖系统
CN215062441U (zh) * 2021-01-06 2021-12-07 青岛海信日立空调系统有限公司 一种空调器及风机盘管
CN220103840U (zh) * 2023-06-08 2023-11-28 中山市思源电器有限公司 换热装置及热水器
CN117128786A (zh) * 2022-05-19 2023-11-28 华为技术有限公司 换热器及换热设备
CN118208760A (zh) * 2024-03-29 2024-06-18 合肥美的暖通设备有限公司 盘管换热器及暖通设备

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203177338U (zh) * 2013-03-21 2013-09-04 德州中傲空调设备有限公司 3排管三水路干式风机盘管机组
CN203785331U (zh) * 2014-03-06 2014-08-20 广东美的暖通设备有限公司 换热器及具有该换热器的风机盘管
US20170198986A1 (en) * 2016-01-12 2017-07-13 Hussmann Corporation Heat exchanger including coil end close-off cover
CN107504837A (zh) * 2017-09-20 2017-12-22 杭州三花家电热管理系统有限公司 换热器、换热系统及室内采暖系统
CN215062441U (zh) * 2021-01-06 2021-12-07 青岛海信日立空调系统有限公司 一种空调器及风机盘管
CN117128786A (zh) * 2022-05-19 2023-11-28 华为技术有限公司 换热器及换热设备
CN220103840U (zh) * 2023-06-08 2023-11-28 中山市思源电器有限公司 换热装置及热水器
CN118208760A (zh) * 2024-03-29 2024-06-18 合肥美的暖通设备有限公司 盘管换热器及暖通设备

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