WO2022085113A1 - 分配器、熱交換器および空気調和装置 - Google Patents
分配器、熱交換器および空気調和装置 Download PDFInfo
- Publication number
- WO2022085113A1 WO2022085113A1 PCT/JP2020/039542 JP2020039542W WO2022085113A1 WO 2022085113 A1 WO2022085113 A1 WO 2022085113A1 JP 2020039542 W JP2020039542 W JP 2020039542W WO 2022085113 A1 WO2022085113 A1 WO 2022085113A1
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- WO
- WIPO (PCT)
- Prior art keywords
- refrigerant
- distributor
- flow paths
- plate
- shaped member
- Prior art date
Links
- 238000004378 air conditioning Methods 0.000 title description 2
- 239000003507 refrigerant Substances 0.000 claims abstract description 156
- 239000007788 liquid Substances 0.000 description 8
- 238000001816 cooling Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- 238000011144 upstream manufacturing Methods 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 238000005219 brazing Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Images
Classifications
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- 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
- F25B41/00—Fluid-circulation arrangements
- F25B41/40—Fluid line arrangements
- F25B41/42—Arrangements for diverging or converging flows, e.g. branch lines or junctions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/02—Header boxes; End plates
- F28F9/026—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits
- F28F9/0278—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits in the form of stacked distribution plates or perforated plates arranged over end plates
-
- 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
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B39/00—Evaporators; Condensers
- F25B39/02—Evaporators
- F25B39/022—Evaporators with plate-like or laminated elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B39/00—Evaporators; Condensers
- F25B39/02—Evaporators
- F25B39/028—Evaporators having distributing means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- 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
- F25B39/04—Condensers
-
- 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
- F28D1/05383—Assemblies of conduits connected to common headers, e.g. core type radiators with multiple rows of conduits or with multi-channel 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
- F28F9/02—Header boxes; End plates
- F28F9/026—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits
- F28F9/027—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits in the form of distribution pipes
- F28F9/0275—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits in the form of distribution pipes with multiple branch pipes
-
- 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
- F25B2339/00—Details of evaporators; Details of condensers
- F25B2339/02—Details of evaporators
- F25B2339/024—Evaporators with refrigerant in a vessel in which is situated a heat exchanger
- F25B2339/0241—Evaporators with refrigerant in a vessel in which is situated a heat exchanger having plate-like elements
-
- 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
- F25B2339/00—Details of evaporators; Details of condensers
- F25B2339/04—Details of condensers
- F25B2339/041—Details of condensers of evaporative condensers
-
- 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
- F25B2339/00—Details of evaporators; Details of condensers
- F25B2339/04—Details of condensers
- F25B2339/043—Condensers made by assembling plate-like or laminated elements
-
- 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
- F28D2021/0061—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for phase-change applications
Definitions
- This disclosure relates to distributors, heat exchangers and air conditioners.
- Patent Document 1 discloses a distributor in which a plurality of plate materials are laminated to form a flow path of a refrigerant.
- the size of the distributor has increased due to the increase in the number of laminated plates.
- An object of the present disclosure is to provide a small distributor, heat exchanger and air conditioner.
- the distributor of the present disclosure is a distributor that distributes the refrigerant to each of a plurality of heat transfer tubes arranged at intervals.
- the distributor has two first flow paths in which the refrigerant flowing in from the inflow port side flows in the first direction toward the heat transfer tube arranged on the outflow port side, and the first flow path branches in the direction intersecting the first flow path.
- Two flow paths two third flow paths through which the refrigerant that has passed through the two second flow paths in the second direction opposite to the first direction flows, and each of which is on the second direction side from the main body on the inflow port side.
- Two fourth flow paths in which the refrigerant that has passed through the two third flow paths in the third direction intersecting with the two third flow paths, and two fourth flow paths in the first direction. Includes at least two fifth channels, each through which the refrigerant has passed.
- FIG. 1 It is a figure which shows the air conditioner which concerns on Embodiment 1.
- FIG. It is a figure which shows the heat exchanger which concerns on Embodiment 1.
- FIG. It is a perspective view of the state which disassembled the distributor which concerns on Embodiment 1.
- FIG. It is a figure which shows the flow of a refrigerant. It is a figure which shows the flow of a refrigerant. It is a figure which shows the 1st plate-shaped member. It is a figure which shows the cross-sectional shape in the VII-VII part of the 1st plate-shaped member. It is a figure which shows the distributor which concerns on Embodiment 2.
- FIG. 1st plate-shaped member It is a figure which shows the cross-sectional shape in the VII-VII part of the 1st plate-shaped member.
- FIG. 1 is a diagram showing an air conditioner 100 according to the first embodiment
- FIG. 2 is a diagram showing a heat exchanger 10 according to the first embodiment.
- FIG. 1 functionally shows the connection relationship and the arrangement configuration of each device in the air conditioner 100, and does not necessarily show the arrangement in the physical space.
- the heat exchanger according to the first embodiment is used for the air conditioner 100
- the present invention is not limited to such a case, and for example, other refrigeration cycle devices having a refrigerant circulation circuit may be used. May be used.
- the case where the air conditioner 100 switches between the cooling operation and the heating operation will be described, but the case is not limited to such a case, and the air conditioning device 100 may perform only the cooling operation or the heating operation.
- the air conditioner 100 includes a compressor 21, a four-way valve 22, an outdoor heat exchanger (heat source side heat exchanger) 23, a throttle device 24, and an indoor heat exchanger (load side). It has a heat exchanger) 25, an outdoor fan (heat source side fan) 26, an indoor fan (load side fan) 27, and a control device 28.
- the indoor unit 100A including the indoor heat exchanger 25 and the outdoor unit 100B including the outdoor heat exchanger 23 are connected by an extension pipe 29.
- the compressor 21, the four-way valve 22, the outdoor heat exchanger 23, the throttle device 24, and the indoor heat exchanger 25 are connected by a refrigerant pipe to form a refrigerant circulation circuit.
- the flow of the refrigerant during the cooling operation is indicated by a dotted arrow
- the flow of the refrigerant during the heating operation is indicated by a solid arrow.
- a compressor 21, a four-way valve 22, a throttle device 24, an outdoor fan 26, an indoor fan 27, various sensors, and the like are connected to the control device 28.
- the control device 28 switches between the cooling operation and the heating operation by switching the flow path of the four-way valve 22.
- the high-pressure, high-temperature gas-state refrigerant discharged from the compressor 21 flows into the outdoor heat exchanger 23 via the four-way valve 22, exchanges heat with the air supplied by the outdoor fan 26, and condenses.
- the condensed refrigerant becomes a high-pressure liquid state, flows out from the outdoor heat exchanger 23, and becomes a low-pressure gas-liquid two-phase state by the throttle device 24.
- the low-pressure gas-liquid two-phase refrigerant flows into the indoor heat exchanger 25 and evaporates by heat exchange with the air supplied by the indoor fan 27 to cool the room.
- the evaporated refrigerant becomes a low-pressure gas state, flows out from the indoor heat exchanger 25, and is sucked into the compressor 21 via the four-way valve 22.
- the high-pressure, high-temperature gas-state refrigerant discharged from the compressor 21 flows into the indoor heat exchanger 25 via the four-way valve 22 and condenses by heat exchange with the air supplied by the indoor fan 27, thereby condensing the room.
- the condensed refrigerant becomes a high-pressure liquid state, flows out from the indoor heat exchanger 25, and becomes a low-pressure gas-liquid two-phase state refrigerant by the throttle device 24.
- the low-pressure gas-liquid two-phase state refrigerant flows into the outdoor heat exchanger 23, exchanges heat with the air supplied by the outdoor fan 26, and evaporates.
- the evaporated refrigerant becomes a low-pressure gas state, flows out from the outdoor heat exchanger 23, and is sucked into the compressor 21 via the four-way valve 22.
- the heat exchanger 10 shown in FIG. 2 is used for at least one of the outdoor heat exchanger 23 and the indoor heat exchanger 25.
- the heat exchanger 10 When acting as an evaporator, the heat exchanger 10 is connected so that the refrigerant flows in from the distributor 1 and flows out to the header 2.
- the heat exchanger 10 acts as an evaporator, the refrigerant in a gas-liquid two-phase state flows into the distributor 1 from the refrigerant pipe, branches, and flows into each heat transfer tube 4 of the heat exchanger 10.
- the heat exchanger 10 acts as a condenser
- the liquid refrigerant flows into the distributor 1 from each heat transfer tube 4, merges, and flows out to the refrigerant pipe.
- the heat exchanger 10 has a distributor 1, a header 2, a plurality of fins 3, and a plurality of heat transfer tubes 4.
- the distributor 1 has one refrigerant inflow section 1A and a plurality of refrigerant outflow sections 1B.
- the header 2 has a plurality of refrigerant inflow portions 2A and one refrigerant outflow portion 2B.
- the refrigerant piping of the refrigerating cycle device is connected to the refrigerant inflow portion 1A of the distributor 1 and the refrigerant outflow portion 2B of the header 2.
- a heat transfer tube 4 is connected between the refrigerant outflow portion 1B of the distributor 1 and the refrigerant inflow portion 2A of the header 2.
- the heat transfer tube 4 is a flat tube having a plurality of flow paths formed inside.
- the heat transfer tube 4 is made of, for example, aluminum.
- the end of the heat transfer tube 4 on the distributor 1 side is connected to the refrigerant outflow portion 1B of the distributor 1.
- a plurality of fins 3 are joined to the heat transfer tube 4.
- the fin 3 is made of, for example, aluminum.
- the joint between the heat transfer tube 4 and the fin 3 is preferably a brazed joint.
- FIG. 2 shows a case where the number of heat transfer tubes 4 is eight, but the case is not limited to such a case.
- the heat transfer tube 4 may have another shape such as a circular tube having a plurality of flow paths formed therein.
- the heat transfer tube 4 and the fin 3 may be made of another metal such as copper.
- the refrigerant flowing through the plurality of heat transfer tubes 4 flows into the header 2 through the plurality of refrigerant inflow portions 2A, merges with them, and flows out to the refrigerant pipes via the refrigerant outflow portions 2B.
- the heat exchanger 10 functions as a condenser, the refrigerant flows in the opposite direction to this flow.
- FIG. 3 is a perspective view of the distributor 1 according to the first embodiment in a disassembled state.
- the distributor 1 includes a first plate-shaped member 11, a second plate-shaped member 12, a third plate-shaped member 13, a fourth plate-shaped member 14, and a fifth plate-shaped member 15. And have.
- the first plate-shaped member 11, the second plate-shaped member 12, the third plate-shaped member 13, the fourth plate-shaped member 14, and the fifth plate-shaped member 15 are laminated and integrally joined by brazing.
- the first plate-shaped member 11, the second plate-shaped member 12, the third plate-shaped member 13, the fourth plate-shaped member 14, and the fifth plate-shaped member 15 have, for example, a thickness of about 1 to 10 mm and are made of aluminum. Is.
- the first plate-shaped member 11 includes a plurality of convex portions 11A, 11B, 11C, 11D, 11E, 11F protruding forward from the main body portion 111.
- the first plate-shaped member includes an inflow pipe 1C projecting forward and a refrigerant inflow portion 1A connected from the inflow pipe 1C.
- the second plate-shaped member 12 is provided with a plurality of circular holes 12A, 12B, 12C, 12D, and 12E.
- the third plate-shaped member 13 is provided with holes 13A and 13C extending in the left-right direction and S-shaped holes 13B and 13D.
- the fourth plate-shaped member 14 is provided with holes 14A, 14B, 14C, 14D extending in the left-right direction.
- the fifth plate-shaped member 15 is provided with a plurality of refrigerant outflow portions 1B extending in the left-right direction as through holes.
- Each plate-shaped member is processed by pressing or cutting.
- the first plate-shaped member 11 is processed by, for example, press working.
- the second plate-shaped member 12, the third plate-shaped member 13, the fourth plate-shaped member 14, and the fifth plate-shaped member 15 are machined by, for example, cutting.
- the distributor 1 is installed so that the refrigerant flow direction of each of the plurality of heat transfer tubes 4 connected to the heat exchanger 10 is horizontal.
- the distributor 1 may be installed so that the refrigerant flow directions of the plurality of heat transfer tubes 4 connected to the heat exchanger 10 are vertical.
- the distributor 1 may be installed so that the refrigerant flow direction of each of the plurality of heat transfer tubes 4 connected to the heat exchanger 10 is oblique.
- FIG. 3 a part of the flow of the refrigerant is indicated by an arrow.
- the direction of the arrow indicates the direction in which the refrigerant flows.
- the refrigerant that has passed through the inflow pipe 1C travels from the refrigerant inflow portion 1A through the hole portion 12A of the second plate-shaped member 12, collides with the surface of the fourth plate-shaped member 14, and enters the hole portion 13A of the third plate-shaped member 13. Branch left and right along.
- the branched refrigerant passes through the hole portion 12B of the second plate-shaped member 12 from the rear to the front and collides with the convex portion 11A and the convex portion 11B of the first plate-shaped member 11.
- the refrigerant that collided with the convex portion 11B of the first plate-shaped member 11 flows diagonally downward along the convex portion 11B.
- the refrigerant flowing diagonally downward travels through the hole 12C of the second plate-shaped member 12, collides with the surface of the fourth plate-shaped member 14, and branches in the left-right direction along the hole 13C of the third plate-shaped member 13. do.
- the branched refrigerant passes through the hole portion 12D of the second plate-shaped member 12 from the rear to the front and collides with the convex portion 11D and the convex portion 11F of the first plate-shaped member 11.
- the refrigerant that collided with the convex portion 11F of the first plate-shaped member 11 flows diagonally downward along the convex portion 11F.
- the refrigerant flowing diagonally downward travels through the hole 12E of the second plate-shaped member 12, collides with the surface of the fourth plate-shaped member 14, and is above the S-shape along the hole 13D of the third plate-shaped member 13. Branch to the side and the lower side.
- the refrigerant on the upper side of the S-shape passes through the hole 14C of the fourth plate-shaped member 14 and flows into the heat transfer tube 4 from the refrigerant outflow portion 1B of the fifth plate-shaped member 15.
- the refrigerant on the lower side of the S-shape passes through the hole 14D of the fourth plate-shaped member 14 and flows into the heat transfer tube 4 from the refrigerant outflow portion 1B of the fifth plate-shaped member 15.
- FIGS. 4 and 5 are views showing the flow of the refrigerant.
- the flow path of the refrigerant is schematically shown by arrows from the side surface of the distributor 1.
- a part of each flow path is omitted for simplification.
- the distributor 1 has a first plate-shaped member 11, a second plate-shaped member 12, a third plate-shaped member 13, a fourth plate-shaped member 14, and a fifth plate-shaped member from the front side to the rear side. They are stacked in the order of 15.
- the convex portion 11A, the convex portion 11B, the convex portion 11E, and the convex portion 11F are shown, and the convex portion 11C and the convex portion 11D are not shown.
- the refrigerant flowing in from the refrigerant inflow portion 1A flows through the first flow path 30a from the front side to the rear side.
- the refrigerant flowing through the first flow path 30a flows through the two second flow paths 30b in the direction intersecting the first flow path 30a in the third plate-shaped member 13 as the first branch.
- the refrigerant that has flowed through the two second flow paths 30b flows through the two third flow paths 30c from the rear side to the front side in the opposite direction to the first flow path 30a.
- the refrigerant flowing through the two third flow paths 30c flows through the two fourth flow paths 30d in the direction intersecting the two third flow paths 30c in the convex portions 11A and 11B of the first plate-shaped member 11. ..
- the refrigerant that has flowed through the two fourth flow paths 30d flows through the two fifth flow paths 30e from the front side to the rear side.
- the refrigerant flowing through the two fifth flow paths 30e flows through the four sixth flow paths 30f in the direction intersecting the two fifth flow paths 30e in the third plate-shaped member 13 as the second branch.
- the refrigerant flowing through the four sixth flow paths 30f flows through the four seventh flow paths 30g from the rear side to the front side in the opposite direction to the fifth flow path 30e.
- the refrigerant flowing through the four seventh flow paths 30g is the four seventh flow paths 30g in the convex portions 11E and 11F of the first plate-shaped member 11 and the convex portions 11C and 11D not shown in FIG. It flows through the four eighth flow paths 30h in the direction intersecting with.
- the refrigerant flowing through the four eighth flow paths 30h flows through the four ninth flow paths 30i from the front side to the rear side.
- the refrigerant flowing through the four ninth flow paths 30i flows through the eight tenth flow paths 30j in the direction intersecting the four ninth flow paths 30i in the third plate-shaped member 13 as the third branch.
- the refrigerant flowing through the eight tenth flow paths 30j flows through the eight eleventh flow paths 30k from the front side to the rear side in the same direction as the ninth flow path 30i.
- the first plate-shaped member 11, the second plate-shaped member 12, the third plate-shaped member 13, and the fourth plate-shaped member 14 are developed and arranged side by side. Shows.
- the refrigerant flows from the front side to the rear side in the first flow path 30a composed of the first plate-shaped member 11, the second plate-shaped member 12, and the third plate-shaped member 13.
- the refrigerant that has flowed through the first flow path 30a flows through the two second flow paths 30b configured by the third plate-shaped member 13 as the first branch.
- the refrigerant flowing through the two second flow paths 30b is a third flow path 30c composed of a third plate-shaped member 13, a second plate-shaped member 12, and a first plate-shaped member 11 from the rear side to the front side. Flow.
- the refrigerant flowing through the two third flow paths 30c flows through the two fourth flow paths 30d configured by the first plate-shaped member 11.
- the refrigerant flowing through the two fourth flow paths 30d is a second fifth stream composed of a first plate-shaped member 11, a second plate-shaped member 12, and a third plate-shaped member 13 from the front side to the rear side. It flows on the road 30e.
- the refrigerant flowing through the two fifth flow paths 30e flows through the four sixth flow paths 30f configured by the third plate-shaped member 13 as the second branch.
- the refrigerant flowing through the four sixth flow paths 30f is the four seventh streams composed of the third plate-shaped member 13, the second plate-shaped member 12, and the first plate-shaped member 11 from the rear side to the front side. It flows on the road 30g.
- the refrigerant flowing through the four seventh flow paths 30g flows through the four eighth flow paths 30h configured by the first plate-shaped member 11.
- the refrigerant flowing through the four eighth flow paths 30h is the four ninth streams composed of the first plate-shaped member 11, the second plate-shaped member 12, and the third plate-shaped member 13 from the front side to the rear side. It flows on the road 30i.
- the refrigerant flowing through the four ninth flow paths 30i flows through the eight tenth flow paths 30j configured by the third plate-shaped member 13 as the third branch.
- the refrigerant flowing through the eight tenth flow paths 30j flows from the front side to the rear side through the eight eleventh flow paths 30k composed of the third plate-shaped member 13 and the fourth plate-shaped member 14.
- FIG. 6 is a diagram showing the first plate-shaped member 11.
- FIG. 7 is a diagram showing a cross-sectional shape of the VII-VII portion of the first plate-shaped member 11 in FIG.
- the first plate-shaped member 11 has a refrigerant inflow portion 1A composed of through holes and a plurality of convex portions 11A, 11B, 11C, 11D, 11E, which protrude from a rectangular parallelepiped main body portion 111. It is equipped with 11F.
- the cross-sectional shape of the first plate-shaped member 11 in the VII-VII portion is such that the hole 114 and the hole 117 through which the refrigerant flows are provided in the two trapezoidal portions protruding from the main body 111. be.
- the angle ⁇ formed by the main body portion 111 and the side surface 112 of the convex portion 11A is 90 ° or more.
- the angle ⁇ formed by the main body portion 111 and the side surface 115 of the convex portion 11C is 90 ° or more.
- An arc is formed at the corner portion 120 where the main body portion 111 and the side surface 112 of the convex portion 11A intersect.
- An arc is formed at the corner portion 121 where the main body portion 111 and the side surface 115 of the convex portion 11C intersect.
- the upper surface 113 of the convex portion 11A and the upper surface 116 of the convex portion 11C have the same height.
- pressure is applied from the upper surface of the first plate-shaped member 11. Since the height of the upper surface of each convex portion of the distributor 1 is the same, the pressure can be uniformly transmitted.
- the distributor 1 can suppress the brazing material from flowing into the flow path and hinder the distribution of the refrigerant, and can improve the performance of the heat exchanger 10.
- the cross-sectional area of the eighth flow path 30h flowing through the hole portion 117 provided in the convex portion 11C is the hole portion provided in the convex portion 11A. It may be less than or equal to the cross-sectional area of the fourth flow path 30d flowing through 114. For example, as shown in FIG. 7, the cross-sectional area of the eighth flow path 30h flowing through the convex portion 11C is smaller than the cross-sectional area of the fourth flow path 30d flowing through the convex portion 11A.
- a plurality of convex portions 11A, 11B, 11C, 11D, 11E, 11F are formed on the first plate-shaped member 11.
- the number of laminated plates can be reduced.
- the mounting area of the heat exchanger can be increased by downsizing the distributor 1, and the performance of the heat exchanger can be improved.
- the distributor 1 of the present disclosure can also achieve weight reduction and cost reduction by downsizing the distributor 1.
- FIG. 8 is a diagram showing a distributor 110 according to the second embodiment.
- the distributor 110 according to the second embodiment has a shape in which two distributors 1 according to the first embodiment are connected in the vertical direction.
- the flow of the refrigerant is the same as that of the first embodiment.
- the refrigerant since the refrigerant flows in from the refrigerant inflow portions 1A at the upper and lower locations, the refrigerant can be distributed to more heat transfer tubes 4.
- the present disclosure relates to a distributor 1 that distributes a refrigerant to each of a plurality of heat transfer tubes 4 arranged at intervals.
- the first flow path 30a in which the refrigerant flowing in from the refrigerant inflow portion 1A side flows in the first direction toward the heat transfer tube 4 arranged on the refrigerant outflow portion 1B side and the first flow path 30a intersect with the first flow path 30a.
- Two second flow paths 30b that branch off one flow path 30a, and two third flow paths 30c through which the refrigerant that has passed through the two second flow paths 30b in the second direction opposite to the first direction flows, respectively.
- the distributor 1 is formed with a flow path protruding from the main body 111 toward the second direction. Therefore, the distributor 1 can be miniaturized by reducing the overall thickness as compared with the distributor in which the flow path is configured by the through hole on the main body 111 side.
- the distributor 1 is installed so that the refrigerant flow direction of each of the plurality of heat transfer tubes 4 connected to the heat exchanger 10 is horizontal.
- the distributor 1 can be miniaturized in the horizontal direction.
- the distributor 1 has four sixth flow paths 30f in which each of the two fifth flow paths 30e branches in a direction intersecting the two fifth flow paths 30e, and four sixth flow paths 30f to the first.
- the four seventh flow paths 30g in which the refrigerant flows in two directions, respectively, and the third flow path, each of which is formed so as to project from the main body 111 on the refrigerant inflow portion 1A side toward the second direction side and intersects the four seventh flow paths 30g.
- the four eighth flow paths 30h in which the refrigerant that has passed through the four seventh flow paths 30g in each direction flows, and the four ninth flow paths 30i in which the refrigerant that has passed through the four eighth flow paths 30h in the first direction each flow. And further prepare.
- the cross-sectional area of each of the four eighth flow paths 30h is equal to or less than the cross-section of each of the two fourth flow paths 30d. ..
- the distributor 1 has a configuration in which the cross-sectional area of the flow path on the downstream side is smaller than that on the upstream side. As a result, the distributor 1 can prevent the refrigerant from becoming difficult to flow upward due to gravity and can improve the flow velocity on the downstream side even when the refrigerant repeatedly branches and the flow rate decreases. As a result, the distributor 1 can uniformly distribute the refrigerant along the flow path.
- the distributor 1 has a convex portion 11A protruding outward from the main body portion 111, and has a main body portion 111 and a side surface 112 of the convex portion 11A in a cross section orthogonal to the direction in which the refrigerant flows through the two fourth flow paths 30d.
- the angle formed by the surface is 90 ° or more, and an arc is formed at the corner portion 121 where the main body portion 111 and the side surface 112 intersect.
- the distributor 1 can be improved in pressure resistance and can be miniaturized by reducing the plate thickness of the first plate-shaped member 11.
- the distributor 1 includes a first plate-shaped member 11 provided with a hole, a second plate-shaped member 12, a third plate-shaped member 13, a fourth plate-shaped member 14, a fifth plate-shaped member 15, and the like. It is composed of.
- the distributor 1 can suitably form a flow path of the refrigerant by combining the holes of the plate-shaped members.
- the heat exchanger 10 of the present disclosure includes the distributor 1 and the distributor 110 shown in the embodiment. By providing such a configuration, the heat exchanger 10 can increase the heat exchanger mounting area by the amount that the distributor 1 and the distributor 110 are miniaturized, and can improve the heat exchange performance. can.
- the air conditioner 100 of the present disclosure includes the heat exchanger 10 described above. By providing such a configuration, the air conditioner 100 can increase the heat exchanger mounting area by the amount that the distributor 1 and the distributor 110 are miniaturized, and can improve the performance of heat exchange using air. Can be improved.
- a plurality of convex portions 11A, 11B, 11C, 11D, 11E, 11F protruding forward from the main body portion 111 of the first plate-shaped member 11 were flow paths through which the refrigerant flows.
- a portion obtained by hollowing out a plate-shaped member may be used as a flow path for the refrigerant.
- the distributor 1 may connect a pipe portion through which the refrigerant flows instead of the convex portion to the main body portion 111.
- the distributor 1 may be configured by a combination of any two or more of a convex portion, a hollow portion, and a pipe portion.
- the distributor 1 changes the height of the convex portion protruding forward from the main body portion 111 of the first plate-shaped member 11 so that the cross-sectional area of the flow path on the downstream side is equal to or less than the cross-sectional area of the flow path on the upstream side. You may do it. Specifically, in the distributor 1, the height of the convex portion on the upstream side may be higher than the height of the convex portion on the downstream side.
- the distributor 1 is the fourth plate-shaped member 14 or the fourth plate-shaped member 14 of the first plate-shaped member 11, the second plate-shaped member 12, the third plate-shaped member 13, the fourth plate-shaped member 14, and the fifth plate-shaped member 15. A configuration in which any one of the fifth plate-shaped members 15 may be eliminated may be used.
- 1,110 Distributor 1A, 2A Refrigerant inflow section, 1B, 2B Refrigerant outflow section, 1C Inflow tube 2 Header, 3 Fins, 4 Heat transfer tube, 10 Heat exchanger, 11 1st plate-shaped member, 12 2nd plate-shaped Member, 13 3rd plate-shaped member, 14 4th plate-shaped member, 15 5th plate-shaped member, 11A, 11B, 11C, 11D, 11E, 11F convex part, 12A, 12B, 12C, 12D, 12E, 13A, 13B , 13C, 13D, 14A, 14B, 14C, 14D, 114, 117 holes, 21 compressor, 22 four-way valve, 23 outdoor heat exchanger, 24 device, 25 indoor heat exchanger, 26 outdoor fan, 27 indoor fan, 28 Control device, 29 Extension pipe, 30a 1st flow path, 30b 2nd flow path, 30c 3rd flow path, 30d 4th flow path, 30e 5th flow path, 30f 6th flow path, 30g 7
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Abstract
Description
図1は、実施の形態1に係る空気調和装置100を示す図であり、図2は、実施の形態1に係る熱交換器10を示す図である。図1では、空気調和装置100における各機器の接続関係および配置構成を機能的に示しており、物理的な空間における配置を必ずしも示すものではない。以下では、実施の形態1に係る熱交換器が、空気調和装置100に使用される場合を説明するが、そのような場合に限定されず、例えば、冷媒循環回路を有する他の冷凍サイクル装置に使用されてもよい。空気調和装置100は、冷房運転と暖房運転とを切り替えるものである場合を説明するが、そのような場合に限定されず、冷房運転または暖房運転のみを行うものであってもよい。
実施の形態1に係る空気調和装置100について詳細に説明する。図1に示されるように、空気調和装置100は、圧縮機21と、四方弁22と、室外熱交換器(熱源側熱交換器)23と、絞り装置24と、室内熱交換器(負荷側熱交換器)25と、室外ファン(熱源側ファン)26と、室内ファン(負荷側ファン)27と、制御装置28と、を有する。空気調和装置100は、室内熱交換器25を含む室内機100Aと室外熱交換器23を含む室外機100Bとが、延長配管29により接続されている。空気調和装置100は、圧縮機21と四方弁22と室外熱交換器23と絞り装置24と室内熱交換器25とが冷媒配管で接続されて、冷媒循環回路が形成される。図1では、冷房運転時の冷媒の流れが点線の矢印で示され、暖房運転時の冷媒の流れが実線の矢印で示される。
実施の形態1に係る熱交換器10について詳細に説明する。以下では、分配器1が、熱交換器10に流入する冷媒を分配するものである場合を説明しているが、分配器1が、他の機器に流入する冷媒を分配するものであってもよい。以下で説明する構成、動作等は、一例に過ぎず、分配器1は、そのような構成、動作等である場合に限定されない。細かい構造については、適宜図示を簡略化または省略している。重複または類似する説明については、適宜簡略化または省略している。
以下に、実施の形態1に係る熱交換器10における冷媒の流れについて説明する。冷媒配管を流れる冷媒は、熱交換器10が蒸発器として機能する際に、冷媒流入部1Aを介して分配器1に流入して分配され、複数の冷媒流出部1Bを介して複数の伝熱管4に流出する。冷媒は、複数の伝熱管4において、送風機によって供給される空気等と熱交換する。複数の伝熱管4を流れる冷媒は、複数の冷媒流入部2Aを介してヘッダ2に流入して合流し、冷媒流出部2Bを介して冷媒配管に流出する。熱交換器10が凝縮器として機能する場合には冷媒は、この流れと逆方向に流れる。
以下に、実施の形態1に係る熱交換器10の分配器1の構成について説明する。図3は、実施の形態1に係る分配器1を分解した状態の斜視図である。図3に示すように、分配器1は、第1板状部材11と、第2板状部材12と、第3板状部材13と、第4板状部材14と、第5板状部材15と、を有する。第1板状部材11、第2板状部材12、第3板状部材13、第4板状部材14、および第5板状部材15は、積層されロウ付けにより一体に接合されている。第1板状部材11、第2板状部材12、第3板状部材13、第4板状部材14、および第5板状部材15は、例えば、厚さ1~10mm程度であり、アルミニウム製である。
図3においては、冷媒の流れの一部が矢印で示されている。矢印の向きは、冷媒の流れる方向を示している。以下では、冷媒の流れの一部について説明する。流入管1Cを通過した冷媒は、冷媒流入部1Aから第2板状部材12の穴部12Aを進み、第4板状部材14の表面に衝突し、第3板状部材13の穴部13Aに沿って左右方向に分岐する。分岐した冷媒は、後方から前方へ第2板状部材12の穴部12Bを通過し、第1板状部材11の凸部11Aおよび凸部11Bに衝突する。
図4および図5を用いて分配器1における冷媒の流れを詳細に説明する。図4および図5は、冷媒の流れを示す図である。図4では、分配器1の側面から冷媒の流路を矢印により模式的に示している。図4では、簡略化のために各流路のうち一部の図示を省略している。分配器1は、図4に示すように前方側から後方側へ第1板状部材11,第2板状部材12,第3板状部材13,第4板状部材14,第5板状部材15の順で積層されている。第1板状部材11の凸部については、説明の便宜上、凸部11A,凸部11B,凸部11E,凸部11Fを図示し、凸部11C,凸部11Dの図示を省略している。
以下に、実施の形態1に係る第1板状部材11について説明する。図6は、第1板状部材11を示す図である。図7は、図6における第1板状部材11のVII-VII部分における断面形状を示す図である。
図8は、実施の形態2に係る分配器110を示す図である。実施の形態2に係る分配器110は、実施の形態1に係る分配器1を上下方向に2つ繋げた形状である。冷媒の流れは、実施の形態1と同様である。
本開示は、間隔を空けて配置された複数の伝熱管4の各々に冷媒を分配する分配器1に関する。分配器1は、冷媒流入部1A側から流入した冷媒が冷媒流出部1B側に配置された伝熱管4へ向かう第一方向へ流れる第一流路30aと、第一流路30aと交差する方向に第一流路30aを分岐する2つの第二流路30bと、第一方向と逆向きの第二方向に2つの第二流路30bをそれぞれ通過した冷媒が流れる2つの第三流路30cと、各々が冷媒流入部1A側の本体部111から第二方向側へ突出して形成され、2つの第三流路30cと交差する第三方向へ2つの第三流路30cをそれぞれ通過した冷媒が流れる2つの第四流路30dと、第一方向に2つの第四流路30dを通過した冷媒がそれぞれ流れる2つの第五流路30eと、を少なくとも含む。
分配器1は、第1板状部材11の本体部111から前方へ突出する複数の凸部11A,11B,11C,11D,11E,11Fが冷媒の流れる流路であった。分配器1は、板状部材をくり抜いた部分を冷媒の流路としてもよい。分配器1は、凸部の替わりに冷媒が流れる管部を本体部111に接続してもよい。分配器1は、凸部、くり抜き部、管部のいずれか2つ以上の組合せにより構成されるようにしてもよい。
Claims (7)
- 間隔を空けて配置された複数の伝熱管の各々に冷媒を分配する分配器であって、
前記分配器は、
流入口側から流入した前記冷媒が流出口側に配置された前記伝熱管へ向かう第一方向へ流れる第一流路と、
前記第一流路と交差する方向に前記第一流路を分岐する2つの第二流路と、
前記第一方向と逆向きの第二方向に前記2つの第二流路をそれぞれ通過した前記冷媒が流れる2つの第三流路と、
各々が前記流入口側の本体部から前記第二方向側へ突出して形成され、前記2つの第三流路と交差する第三方向へ前記2つの第三流路をそれぞれ通過した前記冷媒が流れる2つの第四流路と、
前記第一方向に前記2つの第四流路を通過した前記冷媒がそれぞれ流れる2つの第五流路と、を少なくとも含む、分配器。 - 前記分配器は、熱交換器と接続された複数の前記伝熱管の各々の冷媒流通方向が水平方向となるように設置される、請求項1に記載の分配器。
- 前記分配器は、
前記2つの第五流路と交差する方向に前記2つの第五流路の各々が分岐する4つの第六流路と、
前記4つの第六流路から前記第二方向にそれぞれ前記冷媒が流れる4つの第七流路と、
各々が前記流入口側の前記本体部から前記第二方向側へ突出して形成され、前記4つの第七流路と交差する前記第三方向へ前記4つの第七流路をそれぞれ通過した前記冷媒が流れる4つの第八流路と、
前記第一方向に前記4つの第八流路を通過した前記冷媒がそれぞれ流れる4つの第九流路と、をさらに備え、
前記分配器は、前記熱交換器が蒸発器として作用する場合、前記4つの第八流路の各々の流路断面積が、前記2つの第四流路の各々の流路断面積以下である、請求項2に記載の分配器。 - 前記分配器は、前記本体部から外側へ突出する凸部を有し、
前記冷媒が前記2つの第四流路を流れる方向に直交する断面において、前記本体部と、前記凸部の側面とがなす角は、90°以上であり、前記本体部と前記側面とが交差する部分には、円弧が形成される、請求項3に記載の分配器。 - 前記分配器は、穴が設けられた複数の板状部材から構成されている、請求項1から請求項4のいずれか1項に記載の分配器。
- 請求項1から請求項5のいずれか1項に記載の前記分配器を備えた、熱交換器。
- 請求項6に記載の前記熱交換器を備えた、空気調和装置。
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WO2023238233A1 (ja) * | 2022-06-07 | 2023-12-14 | 三菱電機株式会社 | シェルアンドチューブ式熱交換器及び冷凍サイクル装置 |
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US20230358451A1 (en) | 2023-11-09 |
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