WO2020110639A1 - Échangeur de chaleur - Google Patents

Échangeur de chaleur Download PDF

Info

Publication number
WO2020110639A1
WO2020110639A1 PCT/JP2019/043488 JP2019043488W WO2020110639A1 WO 2020110639 A1 WO2020110639 A1 WO 2020110639A1 JP 2019043488 W JP2019043488 W JP 2019043488W WO 2020110639 A1 WO2020110639 A1 WO 2020110639A1
Authority
WO
WIPO (PCT)
Prior art keywords
heat exchanger
fluid
longitudinal direction
outlet
inlet
Prior art date
Application number
PCT/JP2019/043488
Other languages
English (en)
Japanese (ja)
Inventor
伸介 竹内
沖ノ谷　剛
晋作 芳井
善之 足立
拓也 松田
義之 岡本
Original Assignee
株式会社デンソー
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 株式会社デンソー filed Critical 株式会社デンソー
Priority to DE112019005877.0T priority Critical patent/DE112019005877T5/de
Priority to CN201980077264.8A priority patent/CN113167514A/zh
Publication of WO2020110639A1 publication Critical patent/WO2020110639A1/fr

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/16—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
    • F28D7/1615—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation the conduits being inside a casing and extending at an angle to the longitudinal axis of the casing; the conduits crossing the conduit for the other heat exchange medium
    • F28D7/1623—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation the conduits being inside a casing and extending at an angle to the longitudinal axis of the casing; the conduits crossing the conduit for the other heat exchange medium with particular pattern of flow of the heat exchange media, e.g. change of flow direction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B39/00—Evaporators; Condensers
    • F25B39/02—Evaporators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/16—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
    • F28D7/1684—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation the conduits having a non-circular cross-section
    • F28D7/1692—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation the conduits having a non-circular cross-section with particular pattern of flow of the heat exchange media, e.g. change of flow direction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/126—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element consisting of zig-zag shaped fins
    • F28F1/128—Fins with openings, e.g. louvered fins
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • 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
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/0206—Heat exchangers immersed in a large body of liquid
    • F28D1/0213—Heat exchangers immersed in a large body of liquid for heating or cooling a liquid in a tank
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/053—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
    • F28D1/0535—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight the conduits having a non-circular cross-section
    • F28D1/05366—Assemblies of conduits connected to common headers, e.g. core type radiators
    • F28D1/05391—Assemblies of conduits connected to common headers, e.g. core type radiators with multiple rows of conduits or with multi-channel conduits combined with a particular flow pattern, e.g. multi-row multi-stage radiators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/008—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for vehicles
    • F28D2021/0085—Evaporators
    • 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
    • F28F9/0246—Arrangements for connecting header boxes with flow lines
    • F28F9/0251—Massive connectors, e.g. blocks; Plate-like connectors
    • F28F9/0253—Massive connectors, e.g. blocks; Plate-like connectors with multiple channels, e.g. with combined inflow and outflow channels

Definitions

  • the present disclosure relates to heat exchangers.
  • -Vehicles are equipped with multiple heat exchangers for exchanging heat between fluids.
  • a heat exchanger include a cooling heat exchanger for lowering the temperature of cooling water by heat exchange with a refrigerant.
  • Patent Document 1 shows an example of such a heat exchanger.
  • a plurality of tubes connected to the tank are housed inside the case together with the tank.
  • One of the fluids which is the target of heat exchange, is supplied from the outside into the tank and then distributed into each tube while flowing along the longitudinal direction of the tank.
  • the other fluid to be heat-exchanged is supplied into the case and then flows through the space outside the tank and the tube. This causes heat exchange between the fluid passing inside the tube and the fluid passing outside the tube.
  • the former fluid is also referred to as “first fluid” below
  • the latter fluid is also referred to as “second fluid” below.
  • the inlet and outlet of the second fluid are both formed on the same surface of the case.
  • the direction in which the second fluid flows into the case from the inlet is perpendicular to the stacking direction of the tubes.
  • the second fluid flows into the gap between the tubes immediately after flowing into the case from the inlet portion, and flows along the gaps while substantially maintaining the flow direction at the time of inflow. .. After that, the second fluid merges again in the inner portion of the case, and its flow direction is changed by 180 degrees toward the outlet portion.
  • the present disclosure aims to provide a heat exchanger capable of reducing pressure loss in a fluid flow.
  • a heat exchanger is a heat exchanger that performs heat exchange between a first fluid and a second fluid, and an internal member configured to allow the first fluid to flow inside, and an internal member inside. And a case configured to allow the second fluid to flow in a space around the internal member.
  • the case has a first inlet portion that is an inlet of the first fluid, a first outlet portion that is an outlet of the first fluid, a second inlet portion that is an inlet of the second fluid, and an outlet of the second fluid.
  • the 2nd exit part is provided, respectively.
  • the internal member is a tubular member connected to the tank such that the first fluid flows inside along the longitudinal direction and the longitudinal direction is perpendicular to the longitudinal direction of the tank.
  • a plurality of tubes that are stacked at intervals so as to be arranged along the longitudinal direction of the tank.
  • the direction in which the plurality of tubes are arranged is the stacking direction
  • the second inlet portion and the second outlet portion are both provided on the connection surface, which is one surface of the case along the stacking direction. ing.
  • both the second inlet portion that is the inlet of the second fluid and the second outlet portion that is the outlet of the second fluid are on one side of the case along the stacking direction. Is provided on the connection surface. Therefore, the direction in which the second fluid flows from the second inlet portion into the case is substantially equal to the stacking direction.
  • the second fluid will be sequentially distributed to the gaps between the tubes while flowing in the case along the stacking direction.
  • the second fluid distributed in the gaps between the tubes changes its flow direction by 180 degrees at the positions of the gaps, and then flows toward the second outlet portion on the connection surface.
  • a heat exchanger capable of reducing pressure loss in a fluid flow is provided.
  • FIG. 1 is a perspective view showing the outer appearance of the heat exchanger according to the first embodiment.
  • FIG. 2 is an exploded assembly view showing the internal structure of the heat exchanger according to the first embodiment.
  • FIG. 3 is a diagram for explaining the flow path of the second fluid in the heat exchanger according to the first embodiment.
  • FIG. 4 is a diagram showing a configuration of fins of the heat exchanger according to the first embodiment.
  • FIG. 5 is a figure which shows typically the structure of the heat exchanger which concerns on the modification of 1st Embodiment.
  • FIG. 6 is a diagram schematically showing the configuration of a heat exchanger according to another modification of the first embodiment.
  • FIG. 7: is a figure which shows the structure of the heat exchanger which concerns on 2nd Embodiment.
  • FIG. 8 is a perspective view which shows the external appearance of the heat exchanger which concerns on 3rd Embodiment.
  • FIG. 9 is a figure which shows the other example about the fin of a heat exchanger.
  • the heat exchanger 10 according to the present embodiment is mounted on a vehicle (not shown).
  • the heat exchanger 10 is configured as a heat exchanger for exchanging heat between the refrigerant circulating in the vehicle and the cooling water.
  • the refrigerant which is one of the fluids subject to heat exchange, circulates in an air conditioning refrigeration cycle (not shown) mounted on the vehicle.
  • an air conditioning refrigerant such as R1234yf is used as the refrigerant, but carbon dioxide such as R744 may be used as the refrigerant.
  • the refrigerant passes through an expansion valve (not shown) provided in the refrigeration cycle to reduce its temperature and pressure, and then is supplied to the heat exchanger 10 as a cooling fluid.
  • the refrigerant evaporates as it passes through the heat exchanger 10, and changes from the gas phase to the liquid phase. That is, the heat exchanger 10 in this embodiment functions as an evaporator for evaporating the refrigerant.
  • the other fluid that is the target of heat exchange the cooling water, circulates in a route that passes through the vehicle's internal combustion engine and radiator.
  • LLC is used as the cooling water in the present embodiment, water may be used as the cooling water.
  • the object to be cooled by the cooling water may be a motor generator, an inverter or the like instead of the internal combustion engine.
  • the cooling water is supplied to the heat exchanger 10 after passing through an internal combustion engine or the like to raise its temperature.
  • the heat exchanger 10 heat exchange is performed between the low temperature refrigerant and the high temperature cooling water.
  • the heat exchanger 10 is configured as a cooling heat exchanger for lowering the temperature of the cooling water by exchanging heat with the refrigerant.
  • the refrigerant corresponds to the "first fluid” in this embodiment.
  • the cooling water corresponds to the "second fluid” in this embodiment.
  • the heat exchanger 10 has only to be for exchanging heat between the first fluid and the second fluid, and its specific application is not particularly limited.
  • the heat exchanger 10 includes a case 100 and an internal member 200.
  • the case 100 is a container formed so as to have a substantially rectangular parallelepiped shape. Both the refrigerant and the heat exchanger supplied from the outside are supplied to the inside of the case 100. Heat exchange between the refrigerant and the cooling water is performed inside the case 100. The refrigerant and the cooling water after the heat exchange are respectively discharged from the case 100 to the outside.
  • the case 100 has a container member 120 and a plate member 110.
  • the container member 120 is a portion that substantially forms the entire case 100, and is made of resin in the present embodiment.
  • the container member 120 is formed as a substantially rectangular parallelepiped container, and one side surface side thereof is open.
  • the plate-shaped member 110 is a plate-shaped member provided so as to close the open side surface. In this embodiment, the plate member 110 is made of metal.
  • the plate-shaped member 110 is partly crimped and thereby fixed to the container member 120.
  • the plate member 110 may be fastened and fixed to the container member 120 with, for example, bolts.
  • an annular seal member OR is sandwiched between the plate member 110 and the container member 120.
  • the seal member OR is a packing made of rubber, for example.
  • the seal member OR seals the space between the plate member 110 and the container member 120 in a watertight manner.
  • the horizontal direction that is, the direction from the plate member 110 side toward the container member 120 side
  • the x axis is set along the same direction.
  • a direction perpendicular to the x direction and extending from the front side to the back side of the drawing along the long side of the opening of the container member 120 is the y direction
  • the y direction is along the same direction.
  • the axis is set.
  • the direction perpendicular to both the x direction and the y direction, and the direction from the lower side to the upper side is the z direction
  • the z axis is set along the same direction.
  • a plate-shaped member 110 which is a part of the case 100, is provided with a first inlet portion 11, a first outlet portion 12, a second inlet portion 21, and a second outlet portion 22, respectively.
  • the first inlet 11 is a pipe provided as an inlet for the refrigerant that is the first fluid.
  • the first outlet part 12 is a pipe provided as an outlet for the refrigerant that is the first fluid.
  • the refrigerant flowing from the first inlet portion 11 flows into the inside of the internal member 200, which will be described later, specifically, the inside of the tank 210, and then flows through the inside of each member forming the internal member 200. Then, the refrigerant is discharged from the tank 220 of the internal member 200 to the outside through the first outlet portion 12.
  • Both the first inlet 11 and the first outlet 12 are provided so as to project from the side surface on the ⁇ x direction side of the plate member 110, that is, the case 100, toward the ⁇ x direction side.
  • both the first inlet portion 11 and the first outlet portion 12 are provided on the plate member 110 via the block 130.
  • the first inlet portion 11 and the first outlet portion 12 may be directly provided on the surface of the plate member 110 without the block 130.
  • the first inlet portion 11 and the first outlet portion 12 are provided in the plate-like member 110 at positions closer to the ⁇ y direction side than the center along the y direction.
  • the first inlet 11 is provided at a position on the ⁇ z direction side of the first outlet 12.
  • the position of the first inlet portion 11 is a position corresponding to the tank 210 included in the internal member 200.
  • the position of the first outlet portion 12 corresponds to the tank 220 of the internal member 200.
  • the second inlet portion 21 is a pipe provided as an inlet for cooling water that is the second fluid.
  • the second outlet portion 22 is a pipe provided as an outlet for cooling water that is the second fluid. The cooling water flowing from the second inlet portion 21 flows into the space inside the case 100 and around the internal member 200. After flowing through the space, the cooling water is discharged to the outside through the second outlet portion 22.
  • the second inlet 21 and the second outlet 22 are provided so as to project from the side surface of the plate member 110, that is, the ⁇ x direction side of the case 100, toward the ⁇ x direction side.
  • both the second inlet 21 and the second outlet 22 are provided directly on the surface of the plate member 110.
  • the second inlet portion 21 and the second outlet portion 22 may be provided in the plate-shaped member 110 via a block like the first inlet portion 11 and the like.
  • the second inlet portion 21 is provided in the plate member 110 at a position closer to the ⁇ y direction side than the center along the y direction. Further, the second outlet portion 22 is provided in the plate member 110 at a position closer to the y direction side than the center along the y direction.
  • the internal member 200 is a member configured such that the refrigerant that is the first fluid flows inside thereof.
  • the internal member 200 has three tanks 210, 220 and 230, a tube 240, and a fin 250. All of these are made of metal, and are brazed together to be integrated.
  • Each of the tanks 210, 220, 230 is formed as an elongated container.
  • Each of the tanks 210, 220, 230 is arranged with its longitudinal direction along the x direction, and is brazed to the plate-shaped member 110 at its ⁇ x direction side end.
  • the tank 210 is connected from the x direction side to the portion of the plate-shaped member 110 where the first inlet 11 is provided. All of the refrigerant supplied from the first inlet portion 11 flows into the inside of the tank 210 and flows in the longitudinal direction of the tank 210, that is, in the x direction. The refrigerant is distributed to each tube 240 described later.
  • the tank 220 is connected to the portion of the plate-shaped member 110 where the first outlet 12 is provided from the x direction side.
  • the refrigerant that has been subjected to heat exchange through each tube 240 flows into the tank 220.
  • the refrigerant flows from the tank 220 toward the first outlet section 12 and is discharged from the first outlet section 12 to the outside.
  • the tank 230 is connected from the x-direction side to the portion of the plate member 110 that is closer to the y-direction side than the center.
  • the refrigerant that has passed through the tube 240 from the tank 210 flows into the tank 230.
  • the refrigerant returns to the tank 220 through the tube 240 after being folded back in the tank 230.
  • the tube 240 is a tubular member formed so that its cross section has a flat shape.
  • a plurality of tubes 240 are provided, and they are arranged so as to be lined up along the longitudinal direction of the tank 210 or the like, that is, the x direction.
  • a certain gap is formed between the tubes 240 adjacent to each other, and a fin 250 described later is arranged in the gap.
  • Each tube 240 is arranged with its longitudinal direction aligned with the y direction. That is, the longitudinal direction of the tube 240 is perpendicular to the longitudinal directions of the tanks 210, 220 and 230.
  • the end of the tube 240 on the ⁇ y direction side is connected to the tank 210 and the tank 220. Further, the end portion of the tube 240 on the y direction side is connected to the tank 230.
  • each tube 240 is divided at a central position along the z direction. As a result, two passages through which the refrigerant passes are formed in the tube 240, and two passages are arranged along the z direction. Of these, the flow path on the ⁇ z direction side connects the tank 210 and the tank 230. The flow path on the z direction side connects the tank 220 and the tank 230.
  • the refrigerant that has flowed into the tank 210 from the first inlet portion 11 passes through the flow path formed in the ⁇ z direction side portion of the tube 240, and It flows into 230.
  • the refrigerant flows into the tank 220 through the flow path formed in the portion of the tube 240 on the z direction side, and is discharged from the first outlet portion 12 to the outside.
  • a configuration for realizing such a flow of the refrigerant for example, a configuration in which the tank 210 and the tank 220 are integrated and the respective internal spaces are separated by a wall may be adopted.
  • the fin 250 is a so-called corrugated fin formed by bending a metal plate.
  • a plurality of fins 250 are provided and arranged in the spaces between the tubes 240 adjacent to each other, but only one fin 250 is shown in FIG. 2.
  • the fins 250 are formed so that peaks 251 that are portions that project in the x direction and valleys 252 that are portions that project in the ⁇ x direction are arranged alternately along the z direction. Both the peak portion 251 and the valley portion 252 are formed so as to extend linearly along the y direction. Since the fins 250 having such a shape are provided in the gaps between the tubes 240, the contact area with the cooling water is large. Thereby, the heat exchange between the refrigerant and the cooling water is performed more efficiently.
  • the heat exchanger 10 is an internal member 200 configured such that the refrigerant flows inside, and a container that accommodates the internal member 200 inside. And a case 100 configured such that cooling water flows in the surrounding space.
  • the internal member 200 includes tanks 210, 220 and 230 along which the refrigerant flows along the longitudinal direction, and a plurality of tubes 240.
  • Each tube 240 is a tubular member connected to the tank 210, 220, 230 such that its longitudinal direction is perpendicular to the longitudinal direction of the tank 210, 220, 230.
  • the tubes 240 are laminated at intervals so as to be aligned along the longitudinal direction of the tanks 210, 220, 230.
  • connection surface S the connection surface S.
  • FIG. 3 the flow of cooling water inside the case 100 is indicated by a plurality of arrows. Note that, in FIG. 3, the container member 120, the fins 250, and the seal member OR are not shown.
  • the second inlet 21 which is the inlet of the cooling water is provided on the connection surface S which is one surface of the case 100 along the stacking direction. For this reason, the direction in which the cooling water flows into the case 100 from the second inlet is approximately the same as the stacking direction.
  • the second inlet portion 21 that is the inlet of the cooling water is provided in the plate member 110 at a position closer to the ⁇ y direction side than the center along the y direction. Therefore, the cooling water that has flowed into the case 100 from the second inlet portion 21 flows toward the inner side along the stacking direction in the vicinity of the tank 210 and the tank 220, and with respect to each gap between the tubes 240. It will be distributed sequentially. As shown by the arrows, the cooling water mainly flows into the gaps between the tank 210 and the tank 220, but some cooling water flows from the z direction side or the ⁇ z direction side to the gaps. Inflow.
  • the cooling water changes its flow direction when flowing into each gap between the tubes 240 and flows in each gap in the y direction. After that, when reaching the position near the tank 230, the cooling water changes its flow direction toward the ⁇ x direction side and then flows toward the second outlet portion 22. After that, the cooling water is discharged from the second outlet portion 22 to the outside.
  • the cooling water flows through the gap between the tubes 240, heat exchange is performed between the low-temperature refrigerant passing inside the tubes 240 and the high-temperature cooling water passing outside the tubes 240.
  • the cooling water is sequentially distributed to the gaps between the tubes while flowing along the stacking direction in the vicinity of the tank 210 and the like.
  • the distributed cooling water flows toward the second outlet portion 22 of the connection surface S after changing its flow direction by 180 degrees at the positions of the respective gaps.
  • the “position” of each gap in the above means the position along the stacking direction of each gap, that is, the x coordinate.
  • each of the second inlet 21 and the second outlet 22 is provided on the connection surface S as described above.
  • the cooling water distributed to the respective gaps is sequentially distributed to the respective gaps, and the flow direction thereof is changed by 180 degrees at the positions of the respective gaps. Therefore, as compared with the conventional configuration in which all the cooling water reaches the inner side of the case 100 and the flow direction is changed by 180 degrees at the same position, the pressure loss in the flow of the cooling water is reduced. It is possible to reduce.
  • the second inlet portion 21 is located on the connecting surface S along the longitudinal direction of the tube 240, at a position closer to one side than the center, specifically, at a position closer to the ⁇ y direction side than the center. It is provided in. Further, the second outlet portion 22 is provided on the connection surface S along the longitudinal direction of the tube 240 at a position closer to the other side than the center, specifically, at a position closer to the y direction side than the center. There is. Therefore, the cooling water inside the case 100 generally flows along the y direction.
  • both the first inlet portion 11 and the first outlet portion 12 are provided at positions on the connection surface S along the longitudinal direction of the tube 240, which are closer to one side than the center. Specifically, the first inlet portion 11 and the first outlet portion 12 are both on the same side of the connecting surface S as the second inlet portion 21 along the longitudinal direction of the tube 240, that is, from the center. It is provided at a position on the y direction side.
  • the heat exchanger 10 functions as an evaporator. Therefore, the temperature change of the refrigerant when passing through the internal member 200 occurs only to the extent corresponding to the pressure change of the refrigerant in each part.
  • the refrigerant that has become superheated vapor is discharged from the first outlet portion 12, that is, when the refrigerant is discharged in a so-called superheat state, the refrigerant in the vicinity of the first outlet portion 12 Is locally higher than the temperature of the refrigerant on the upstream side.
  • the cooling water discharged from the second outlet 22 may not be sufficiently cooled. is there.
  • the heat exchanger 10 is used as the cooling heat exchanger for lowering the temperature of the cooling water as in the present embodiment, the above phenomenon is not preferable.
  • both the first inlet portion 11 and the first outlet portion 12 are provided at positions on the ⁇ y direction side of the connection surface S, and the second outlet portion 22 is Will be installed on the opposite side.
  • the position is a position that is a substantially central turning point in the path in which the coolant flows through the internal member 200. In other words, it is a position where the temperature of the refrigerant is always stable, regardless of whether or not it becomes a superheat state.
  • by disposing the second outlet portion 22 at such a position it is possible to stably cool the cooling water by the heat exchanger 10.
  • the second inlet portion 21 and the second outlet portion 22 may be replaced with each other. That is, the second inlet portion 21 is provided at a position on the connecting surface S on the y-direction side of the center, and the second outlet portion 22 is provided on a position on the connecting surface S on the ⁇ y-direction side of the center. It may be configured.
  • the opening of the expansion valve installed at the inlet of the evaporator is generally adjusted based on the temperature of the refrigerant at the outlet of the evaporator. Therefore, in the present embodiment, the first inlet portion 11 and the first outlet portion 12 are both provided at positions on the ⁇ y direction side of the connection surface S so that the positions of both are close to each other. As a result, the expansion valve provided in the vicinity of the first inlet portion 11 and the temperature sensor provided in the vicinity of the first outlet portion 12 are integrated into one unit, and then the unit is attached in the vicinity of the block 130. Things like this are possible.
  • part of the case 100 is formed by the plate-shaped member 110 made of metal.
  • the inner member 200 which is also made of metal, is brazed to the plate member 110 from the inside. Further, each of the first inlet portion 11, the first outlet portion 12, the second inlet portion 21, and the second outlet portion 22 is provided in the plate member 110.
  • the portion of the case 100 to which the pipe is connected is a plate-shaped member 110 made of metal, which is integrated with the internal member 200 to increase the strength of the heat exchanger 10 against vibration. There is.
  • each of the peaks 251 and the valleys 252 formed on the fin 250 extends along the longitudinal direction of the tube 240, that is, the y direction.
  • the direction is parallel to the direction in which the cooling water flows through the gap between the tubes 240. Therefore, the fins 250 arranged in the gaps do not interfere with the flow of the cooling water in the gaps between the tubes 240.
  • a louver 253 is formed on each fin 250.
  • the louver 253 is formed by cutting and raising a generally flat plate-shaped portion between the peak portion 251 and the valley portion 252 of the fin 250. Specifically, a plurality of linear cuts along the x direction are formed on the flat plate-like portion so as to be aligned along the y direction, and the strip-shaped portion between the cuts is around the x-axis.
  • Each louver 253 is formed by rotating and twisting. As a result, the notch is widened to form the opening 254.
  • the fin 250 according to the present embodiment has the plurality of openings 254. A part of the cooling water passing through the gap between the tubes 240 can flow into the adjacent gap through this opening 254. As a result, it is possible to prevent the pressure of the cooling water from locally increasing in a part of the gap, and thus it is possible to further reduce the pressure loss in the flow of the cooling water.
  • the fin 250 may have an opening 254 different from the above.
  • the opening 254 may be formed as a simple slit-like opening without forming the louver 253.
  • a gap GP is formed between the end of each fin 250 on the y direction side and the tank 230. Similarly, a gap GP is also formed between the ⁇ y direction side end of each fin 250 and the tank 220 or the tank 210.
  • the shape of the case 100 when viewed along the x axis is not a rectangle but a parallelogram.
  • the internal space of the case 100 is relatively large in the portion on the ⁇ z direction side of the tank 210.
  • such a widened portion is shown as a space SP1.
  • the internal space of the case 100 is relatively large in the portion on the z direction side of the tank 230.
  • such a widened portion is shown as a space SP2.
  • the position where the second inlet 21 is formed is the same as the position of the second inlet 21 shown in FIG. That is, the second inlet portion 21 which is the inlet of the cooling water is provided at a position on the ⁇ y direction side of the center along the y direction and a position on the ⁇ z direction side of the center along the z direction.
  • a wide space SP1 as shown in FIG. 5 is formed near the second inlet portion 21 as described above. Therefore, the pressure loss when the cooling water supplied from the second inlet portion 21 flows along the longitudinal direction of the tank 210 is further reduced.
  • the position where the second outlet 22 is formed is the same as the position of the second outlet 22 shown in FIG. That is, the second outlet portion 22 that is the outlet of the cooling water is provided at a position on the y direction side with respect to the center along the y direction and a position on the z direction side with respect to the center along the z direction.
  • a wide space SP2 as shown in FIG. 5 is formed near the second outlet 22 as described above. Therefore, the pressure loss when the cooling water after passing through the gaps flows along the longitudinal direction of the merging tank 210 is further reduced.
  • the shape of the case 100 when viewed along the x-axis is not a rectangle but a hexagon.
  • the side wall on the ⁇ x direction side of the case 100 has a shape protruding toward the ⁇ x direction side, and inside the side wall, a wide side as shown in FIG. 6 is formed.
  • a space SP11 is formed.
  • the side wall of the case 100 on the x direction side is shaped to project toward the x direction side, and a wide space SP12 as shown in FIG. 6 is formed inside the side wall.
  • the effect of forming the spaces SP11 and S12 is the same as the effect of forming the spaces SP1 and S2 in the modification of FIG. 5 described above.
  • the second embodiment will be described. In the following, differences from the first embodiment will be mainly described, and descriptions of common points with the first embodiment will be appropriately omitted.
  • the heat exchanger 10 is configured as a heating heat exchanger for increasing the temperature of cooling water by exchanging heat with a high-temperature refrigerant.
  • Carbon dioxide such as R744 is used as the refrigerant. That is, in the present embodiment, a refrigerant made of carbon dioxide is used as the first fluid.
  • the refrigerant is supplied from the first inlet 11 in the supercritical region.
  • FIG. 7 illustrates a configuration of a part of the heat exchanger 10 according to the present embodiment excluding the container member 120, the fins 250, and the seal member OR from the same viewpoint as FIG. 3.
  • each tube 240 is not partitioned at a central position along the z-axis, and only a single flow path is formed inside each tube 240.
  • the first outlet portion 12 of the present embodiment is located along the longitudinal direction of the tube 240 in the plate member 110 at a position closer to one side, specifically, in the plate member 110 along the y direction. It is provided at a position closer to the ⁇ y direction side than the center. In addition, the first outlet portion 12 is provided at a position closer to the z direction side than the center along the z direction.
  • the first inlet portion 11 of the present embodiment is a position of the plate-shaped member 110 that is closer to the other side along the longitudinal direction of the tube 240, specifically, in the y-direction of the plate-shaped member 110. It is provided at a position closer to the y direction side than the center along the side. Further, the first inlet portion 11 is provided at a position closer to the ⁇ z direction side than the center along the z direction.
  • the first outlet portion 12 is located on the connecting surface S along the longitudinal direction of the tube 240 toward the ⁇ y direction side, that is, on the same one side as the second inlet portion 21. It is provided at the position. Further, the first inlet portion 11 is provided at a position on the connecting surface S that is closer to the y direction side along the longitudinal direction of the tube 240, that is, at a position that is the same as the second outlet portion 22 and closer to the other side. .
  • the position of the first inlet portion 11 corresponds to the tank 230. Therefore, the refrigerant supplied from the first inlet portion 11 flows into the tank 230 in this embodiment.
  • the refrigerant is distributed from the tank 230 to each tube 240 and flows inside the tube 240 toward the ⁇ y direction side. After that, the refrigerant flows into the tank 215.
  • the position of the first outlet portion 12 corresponds to the tank 215. Therefore, the refrigerant flowing into the tank 215 as described above flows from the tank 215 toward the first outlet portion 12 and is discharged from the first outlet portion 12 to the outside.
  • the refrigerant which is the first fluid
  • the cooling water that is the second fluid flows in the direction from the second inlet 21 toward the second outlet 22, that is, in the y direction opposite to the above.
  • the refrigerant and the cooling water flow in the directions opposite to each other.
  • the refrigerant flows in the supercritical region as described above.
  • the refrigerant flows without any phase change. Therefore, the temperature of the refrigerant gradually increases from the most upstream first inlet portion 11 to the most downstream first outlet portion 12 side. As a result, the temperature difference between the temperature of the refrigerant at the first inlet portion 11 and the temperature of the refrigerant at the first outlet portion 12 becomes relatively large.
  • the heat exchanger 10 when used as a heat exchanger for heating by using the refrigerant composed of carbon dioxide in the supercritical region, the position of the first inlet 11 and the like are configured as in the present embodiment. It is preferable.
  • the third embodiment will be described. In the following, differences from the first embodiment will be mainly described, and descriptions of common points with the first embodiment will be appropriately omitted.
  • FIG. 8 illustrates the configuration of the heat exchanger 10 according to this embodiment from the same viewpoint as that of FIG. 1.
  • the present embodiment differs from the first embodiment only in the position where the second inlet 21 and the second outlet 22 are provided.
  • each of the second inlet portion 21 and the second outlet portion 22 is provided not on the plate member 110 but on the surface of the container member 120 on the x direction side.
  • This surface corresponds to the “connecting surface S” in the present embodiment because it is one surface of the case 100 along the stacking direction.
  • the second inlet portion 21 of the present embodiment is a position on the connecting surface S that is closer to the ⁇ y direction side than the center along the y direction, and is ⁇ z from the center along the z direction. It is provided at a position closer to the direction side.
  • the second outlet portion 22 of the present embodiment is a position closer to the y direction side than the center along the y direction on the connection surface S, and z is larger than the center along the z direction. It is provided at a position closer to the direction side.
  • the second outlet portion 22 is provided at a position opposite to the first inlet portion 11 and the first outlet portion 12 along the y direction. Even in such a mode, the same effects as those described in the first embodiment can be obtained.
  • the fin 250 is a corrugated fin having the louver 253
  • the fins 250 are not limited to corrugated fins, and various types of fins can be used.
  • a so-called offset fin as shown in FIG. 9 can be used as the fin 250.
  • the fin 250 has a shape in which each of the peak portion 251 and the valley portion 252 is offset in the z direction at a position in the middle of the y direction that is the longitudinal direction thereof.
  • An opening 254 is formed in the portion of the fin 250 offset as described above. Even when the fin 250 having such a configuration is used, the same effect as that described so far can be obtained.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Air-Conditioning For Vehicles (AREA)

Abstract

L'invention concerne un échangeur de chaleur (10) comprenant : un élément interne (200) conçu de telle sorte que le premier fluide s'écoule à l'intérieur de celui-ci ; et un boîtier (100) qui est un récipient à l'intérieur duquel est reçu l'élément interne, le boîtier étant conçu de telle sorte que le second fluide s'écoule à travers un espace entourant l'élément interne. L'élément interne comprend : des réservoirs (210, 220, 230, 215) à l'intérieur desquels le premier fluide s'écoule dans la direction longitudinale de ceux-ci ; et de multiples tubes (240) qui sont des éléments tubulaires reliés aux réservoirs de telle sorte que la direction longitudinale des multiple tubes est perpendiculaire à la direction longitudinale des réservoirs, les multiples tubes étant empilés avec des espaces entre eux de façon à être alignés dans la direction longitudinale des réservoirs. Une seconde partie d'entrée qui constitue un orifice d'entrée pour le second fluide, et une seconde partie de sortie qui constitue un orifice de sortie pour le second fluide, sont toutes deux disposées sur une surface de liaison (S) qui est une surface du boîtier située sur un côté le long d'une direction d'empilement, la direction d'empilement étant la direction dans laquelle les multiples tubes sont alignés.
PCT/JP2019/043488 2018-11-26 2019-11-06 Échangeur de chaleur WO2020110639A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE112019005877.0T DE112019005877T5 (de) 2018-11-26 2019-11-06 Wärmetauscher
CN201980077264.8A CN113167514A (zh) 2018-11-26 2019-11-06 热交换器

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2018-220442 2018-11-26
JP2018220442A JP7259287B2 (ja) 2018-11-26 2018-11-26 熱交換器

Publications (1)

Publication Number Publication Date
WO2020110639A1 true WO2020110639A1 (fr) 2020-06-04

Family

ID=70852301

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2019/043488 WO2020110639A1 (fr) 2018-11-26 2019-11-06 Échangeur de chaleur

Country Status (4)

Country Link
JP (1) JP7259287B2 (fr)
CN (1) CN113167514A (fr)
DE (1) DE112019005877T5 (fr)
WO (1) WO2020110639A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08261668A (ja) * 1995-03-27 1996-10-11 Sanden Corp 熱交換器
JP2005337668A (ja) * 2004-05-31 2005-12-08 Mitsubishi Heavy Ind Ltd 熱交換器
KR101534818B1 (ko) * 2014-11-03 2015-07-06 박은정 열전도성 플라스틱 냉각관을 구비한 스크러버용 열교환기
WO2019053213A1 (fr) * 2017-09-14 2019-03-21 Valeo Autosystemy Sp. Z O.O. Ensemble échangeur de chaleur

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19833338A1 (de) 1998-07-24 2000-01-27 Modine Mfg Co Wärmetauscher, insbesondere Abgaswärmetauscher
US7261147B2 (en) * 2003-05-28 2007-08-28 Lg Electronics Inc. Heat exchanger
FR2933177B1 (fr) 2008-06-26 2018-05-25 Valeo Systemes Thermiques Branche Thermique Moteur Echangeur de chaleur et carter pour l'echangeur
JP5510106B2 (ja) * 2010-06-21 2014-06-04 株式会社デンソー 排気熱交換装置
JP6159686B2 (ja) 2014-06-18 2017-07-05 株式会社ユタカ技研 熱交換器
DE102015111393A1 (de) 2014-10-16 2016-04-21 Halla Visteon Climate Control Corporation Vorrichtung zur Wärmeübertragung
JP2018105509A (ja) * 2015-04-28 2018-07-05 株式会社デンソー 熱交換器

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08261668A (ja) * 1995-03-27 1996-10-11 Sanden Corp 熱交換器
JP2005337668A (ja) * 2004-05-31 2005-12-08 Mitsubishi Heavy Ind Ltd 熱交換器
KR101534818B1 (ko) * 2014-11-03 2015-07-06 박은정 열전도성 플라스틱 냉각관을 구비한 스크러버용 열교환기
WO2019053213A1 (fr) * 2017-09-14 2019-03-21 Valeo Autosystemy Sp. Z O.O. Ensemble échangeur de chaleur

Also Published As

Publication number Publication date
JP7259287B2 (ja) 2023-04-18
DE112019005877T5 (de) 2021-09-02
CN113167514A (zh) 2021-07-23
JP2020085340A (ja) 2020-06-04

Similar Documents

Publication Publication Date Title
US9109821B2 (en) Condenser for vehicle
JP2008080995A (ja) 冷却システム
US6431264B2 (en) Heat exchanger with fluid-phase change
US20160010929A1 (en) Stacked heat exchanger
JP2008180486A (ja) 熱交換器
WO2008072730A1 (fr) Échangeur de chaleur complexe et échangeur de chaleur
WO2015045344A1 (fr) Échangeur thermique à stockage de froid
JP2008170140A (ja) 車両用熱交換器
WO2019111849A1 (fr) Échangeur de chaleur
WO2014017007A1 (fr) Échangeur de chaleur de stockage de froid
US20130146264A1 (en) Heat exchanger for vehicle
JP2014055758A (ja) 複合型熱交換器
WO2020170651A1 (fr) Échangeur de chaleur composé
JP5985387B2 (ja) 複合型熱交換器
JP6409836B2 (ja) 蓄冷熱交換器
JP5540816B2 (ja) 蒸発器ユニット
WO2020110639A1 (fr) Échangeur de chaleur
JP4671732B2 (ja) 車両用空調装置
JP2016176676A (ja) 蓄冷熱交換器
JP2015148392A (ja) 熱交換器
JP2004183960A (ja) 熱交換器
JP5772608B2 (ja) 熱交換器
JP3677898B2 (ja) 複式熱交換器
JP2016176678A (ja) 蓄冷熱交換器
JP2004338644A (ja) 車両用熱交換装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19891324

Country of ref document: EP

Kind code of ref document: A1

122 Ep: pct application non-entry in european phase

Ref document number: 19891324

Country of ref document: EP

Kind code of ref document: A1