WO2022113297A1 - 熱交換器および冷凍サイクル装置 - Google Patents
熱交換器および冷凍サイクル装置 Download PDFInfo
- Publication number
- WO2022113297A1 WO2022113297A1 PCT/JP2020/044332 JP2020044332W WO2022113297A1 WO 2022113297 A1 WO2022113297 A1 WO 2022113297A1 JP 2020044332 W JP2020044332 W JP 2020044332W WO 2022113297 A1 WO2022113297 A1 WO 2022113297A1
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- WO
- WIPO (PCT)
- Prior art keywords
- mountain portion
- heat exchanger
- fin
- mountain
- hole
- Prior art date
Links
- 238000005057 refrigeration Methods 0.000 title description 19
- 239000003507 refrigerant Substances 0.000 claims description 50
- 238000010438 heat treatment Methods 0.000 description 11
- 238000001816 cooling Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 7
- 230000002093 peripheral effect Effects 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
-
- 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
- F28F1/24—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 and extending transversely
- F28F1/32—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 and extending transversely the means having portions engaging further tubular elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F17/00—Removing ice or water from heat-exchange apparatus
- F28F17/005—Means for draining condensates from heat exchangers, e.g. from 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
- F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
- F28F19/006—Preventing deposits of ice
-
- 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
- F28D1/047—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 bent, e.g. in a serpentine or zig-zag
- F28D1/0477—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 bent, e.g. in a serpentine or zig-zag the conduits being bent in a serpentine or zig-zag
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- 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
- F28D2021/0068—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for refrigerant cycles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2225/00—Reinforcing means
- F28F2225/06—Reinforcing means for 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
- F28F2265/00—Safety or protection arrangements; Arrangements for preventing malfunction
- F28F2265/26—Safety or protection arrangements; Arrangements for preventing malfunction for allowing differential expansion between elements
Definitions
- This disclosure relates to heat exchangers and refrigeration cycle devices.
- the fin includes a sheet portion (flat surface portion) and a mountain portion and a valley portion.
- the seat portion is formed concentrically around the outer periphery of the fin collar in order to guide the air flowing around the heat transfer tube and reduce the wake area.
- the front and rear of the seat are open.
- the peaks and valleys are continuously provided between the fin collars to vary the flow of air.
- the present disclosure has been made in view of the above problems, and an object thereof is to improve the heat transfer efficiency, improve the strength of fins, and suppress the decrease in frost resistance. Is to provide a heat exchanger and a refrigeration cycle device capable of
- the heat exchangers of the present disclosure include fins configured to extend in the lateral direction along the air flow direction and in the longitudinal direction intersecting the air flow direction, and a heat transfer tube penetrating the fins. There is.
- the fins are provided with through holes.
- the heat transfer tube is inserted into the through hole.
- the fin includes a flat surface portion and a first mountain portion, a second mountain portion, and a third mountain portion configured to protrude from the flat surface portion.
- the first mountain portion is configured to be curved along the longitudinal direction.
- the second mountain portion is arranged between the first mountain portion and the through hole, and is configured to surround the through hole.
- the third mountain portion is configured to extend linearly in the longitudinal direction and is arranged on the leeward side of the first mountain portion and the second mountain portion in the air flow direction.
- the heat exchanger of the present disclosure since the first mountain portion and the second mountain portion are configured to protrude from the flat surface portion, the influence of the dead water area can be suppressed. Therefore, the heat transfer coefficient of the fins can be improved. Further, the strength of the fin can be improved by the first mountain portion, the second mountain portion and the third mountain portion. Further, since the third mountain portion is arranged on the leeward side of the first mountain portion and the second mountain portion in the air flow direction, it is possible to suppress the generation of frost on the fins on the windward side. Therefore, it is possible to suppress a decrease in frost bearing capacity.
- FIG. 3 is a cross-sectional view taken along the line II-II of region A in FIG. It is an end view along the line III-III of FIG. It is an end view along the IV-IV line of FIG. It is a refrigerant circuit diagram which shows the refrigerating cycle apparatus which concerns on Embodiment 1.
- FIG. It is sectional drawing which shows schematic the structure of the part corresponding to FIG. 2 of the heat exchanger which concerns on Embodiment 2.
- FIG. It is an end view along the line VII-VII of FIG. It is an end view along the line VIII-VIII of FIG. It is sectional drawing which shows schematic the structure of the part corresponding to FIG.
- FIG. 9 is an end view taken along line XX of FIG. 9. It is an end view along the XI-XI line of FIG. It is sectional drawing which shows schematic the structure of the part corresponding to FIG. 2 of the heat exchanger which concerns on Embodiment 4.
- FIG. It is an end view along the XIII-XIII line of FIG. It is an end view along the XIV-XIV line of FIG.
- Embodiment 1 The configuration of the heat exchanger HE according to the first embodiment will be described with reference to FIGS. 1 to 4.
- the heat exchanger HE includes fins F and a heat transfer tube P.
- the fin F is configured to extend in the lateral direction D1 along the air flow direction D0 and the longitudinal direction D2 intersecting the air flow direction D0.
- the fin F is configured to have a substantially rectangular shape.
- the heat transfer tube P penetrates the fin F.
- the heat transfer tube P is a circular tube.
- the fin F is provided with a through hole TH.
- the through hole TH is formed in a circular shape.
- the heat transfer tube P is inserted into the through hole TH.
- the heat exchanger HE includes a plurality of fins F and a plurality of heat transfer tubes P.
- the plurality of fins F are stacked at intervals from each other.
- the heat transfer tube P penetrates the plurality of fins F in the direction D3 in which the plurality of fins F are stacked.
- Each of the plurality of fins F is provided with a plurality of through holes TH.
- the plurality of through holes TH are arranged in the longitudinal direction D2 of the fin F.
- the plurality of through holes TH are arranged so as to be spaced apart from each other in the longitudinal direction D2 of the fin F.
- the lateral direction D1 of the fin F is orthogonal to the longitudinal direction D2.
- the lateral direction D1 of the fin F may be the horizontal direction.
- the longitudinal direction D2 of the fin F may be the vertical direction (vertical direction).
- the direction D3 in which the fins F are stacked is orthogonal to the lateral direction D1 and the longitudinal direction D2 of the fins F.
- the heat transfer tube P has a plurality of heat transfer portions P1 and a plurality of connection portions P2. Each of the plurality of heat transfer portions P1 penetrates the plurality of fins F. Each of the plurality of heat transfer portions P1 is inserted into the plurality of through holes TH in the direction D3 in which the plurality of fins F are stacked. The plurality of heat transfer portions P1 are formed in a linear shape. Each of the plurality of heat transfer portions P1 extends in the direction D3 in which the plurality of fins F are stacked.
- the plurality of connection portions P2 are portions that connect the plurality of heat transfer portions P1 to each other on the outside of the plurality of fins F.
- Each of the plurality of connecting portions P2 is configured in a U shape.
- Each of the plurality of connecting portions P2 connects a plurality of heat transfer tubes P adjacent to each other in the longitudinal direction D2 of the fin F.
- Each of the plurality of connecting portions P2 is connected to the end portions of the plurality of heat transfer portions P1 in the direction D3 in which the plurality of fins F are stacked.
- the plurality of heat transfer portions P1 are arranged in a plurality of stages in the longitudinal direction D2 of the fin F. In the present embodiment, the plurality of heat transfer portions P1 are arranged in four stages along the longitudinal direction D2 of the fins F.
- the plurality of heat transfer units P1 are connected by the plurality of connection units P2 as follows.
- the heat transfer portion P1 of the first stage is connected to the heat transfer portion P1 of the second stage at the back side of the direction D3 in which a plurality of fins F are stacked by the connection portion P2.
- the second-stage heat transfer unit P1 is connected to the third-stage heat transfer unit P1 by a connecting portion P2 on the front side in the direction D3 in which a plurality of fins F are stacked.
- the heat transfer unit P1 of the third stage is connected to the heat transfer unit P1 of the fourth stage at the back side of the direction D3 in which a plurality of fins F are stacked by the connection portion P2.
- the heat transfer tube P is configured to meander in the longitudinal direction D2 of the fin F.
- the fin F includes a flat surface portion SP, a first mountain portion MP1, a second mountain portion MP2, a third mountain portion MP3, and a fin color FC.
- the flat surface portion SP is configured to be flat.
- the flat surface portion SP is configured in a flat plate shape.
- the first mountain portion MP1, the second mountain portion MP2, and the third mountain portion MP3 are configured to protrude from the flat surface portion SP.
- the first mountain portion MP1, the second mountain portion MP2, and the third mountain portion MP3 project from the flat surface portion SP in the same direction.
- the fin F includes a plurality of first mountain portions MP1 and a plurality of second mountain portions MP2.
- the first mountain portion MP1 is configured to be curved along the longitudinal direction D2 of the fin F.
- the first mountain portion MP1 is curved so as to protrude in the longitudinal direction D2 of the fin F.
- the first mountain portion MP1 has a portion extending along the longitudinal direction D2 of the fin F.
- the first mountain portion MP1 has a portion extending along the lateral direction D1 of the fin F.
- the first mountain portion MP1 is arranged so as to be offset from the center of the through hole TH in the lateral direction D1 of the fin F.
- the first mountain portion MP1 is configured in an arc shape.
- the widths of the first mountain portions MP1 are equal.
- the plurality of first mountain portions MP1 are lined up in the longitudinal direction D2 of the fin F.
- four first mountain portions MP1 are arranged between the two through holes TH in the longitudinal direction D2 of the fin F.
- two first mountain portions MP1 are arranged on the upper side and two on the lower side of one through hole TH.
- the two first mountain portions MP1 arranged above the one through hole TH in the longitudinal direction D2 of the fin F are arranged so as to be adjacent to each other in the longitudinal direction D2 of the fin F.
- the two first mountain portions MP1 arranged below the one through hole TH in the longitudinal direction D2 of the fin F are arranged so as to be adjacent to each other in the longitudinal direction D2 of the fin F.
- the two first mountain portions MP1 arranged so as to be adjacent to each other are configured to be curved to the same side along the longitudinal direction D2. Further, the two first mountain portions MP1 arranged so as to sandwich one through hole TH in the longitudinal direction D2 of the fin F are configured to be curved to the opposite side along the longitudinal direction D2.
- the two first ridges MP1 located near the upper through hole TH between the two through holes TH are curved so as to protrude downward.
- the two first mountain portions MP1 arranged near the lower through hole TH between the two through holes TH are curved so as to protrude upward.
- the outer first ridge MP1 is among the two first ridge MP1s that are curved so as to protrude upward. It is arranged at a distance from the outer first mountain portion MP1.
- Each of the plurality of first mountain portions MP1 is configured to have the same shape except for the direction of bending along the longitudinal direction D2 of the fin F.
- the radius of curvature of each of the plurality of first mountain portions MP1 is equal to each other.
- the centers of curvature of each of the plurality of first mountain portions MP1 are linearly aligned with each other in the longitudinal direction D2 of the fin F.
- the widths of the plurality of first mountain portions MP1 are equal to each other.
- the length of each of the plurality of first mountain portions MP1 is equal to each other.
- Each of the plurality of first mountain portions MP1 is longer than each of the plurality of second mountain portions MP2 in the lateral direction D1 of the fin F.
- each of the plurality of first mountain portions MP1 is arranged between each of the plurality of second mountain portions MP2.
- the center of curvature of each of the plurality of first mountain portions MP1 is linearly aligned with the center of each of the plurality of second mountain portions MP2 in the longitudinal direction D2 of the fin F.
- the inner first ridge MP1 is adjacent to the second ridge MP2.
- the inner first ridge MP1 is adjacent to the second ridge MP2.
- the second mountain portion MP2 is arranged between the first mountain portion MP1 and the through hole TH.
- the second mountain portion MP2 is configured to surround the through hole TH.
- the second mountain part MP2 is configured in an annular shape. The height of the second mountain portion MP2 protruding from the flat surface portion SP is higher than that of the first mountain portion MP1.
- Each of the plurality of second mountain MP2s is configured to have the same shape.
- the centers of each of the plurality of second mountain portions MP2 are linearly arranged in the longitudinal direction D2 of the fin F.
- the widths of the plurality of second mountain MP2s are equal to each other.
- the diameters of the plurality of second mountain MP2s are equal to each other.
- the third mountain part MP3 is configured to extend linearly in the longitudinal direction D2 of the fin F.
- the third mountain portion MP3 continuously extends from one end to the other end of the fin F in the longitudinal direction D2.
- the third mountain portion MP3 is arranged on the leeward side of the first mountain portion MP1 and the second mountain portion MP2 in the air flow direction D0.
- the third mountain portion MP3 is arranged at a distance from the first mountain portion MP1 and the second mountain portion MP2 in the lateral direction D1 of the fin F.
- the third mountain portion MP3 is arranged at the leeward end of the fin F in the lateral direction D1.
- no other mountain portion is arranged on the windward side of the first mountain portion MP1 and the second mountain portion MP2 in the air flow direction D0.
- the height position on the leeward side of the fin F is lower than the height position on the leeward side of the fin F.
- the height of the first mountain portion MP1, the second mountain portion MP2, and the third mountain portion MP3 protruding from the flat surface portion SP is lower than that of the fin collar FC.
- the fin color FC is configured in a cylindrical shape.
- the heat transfer tube P is inserted into the fin collar FC.
- the outer peripheral surface of the heat transfer tube P is fitted to the inner peripheral surface of the fin collar FC.
- the fin collar FC is configured to protrude from the flat surface portion SP.
- the fin color FC protrudes from the flat surface portion SP in the same direction as the first mountain portion MP1, the second mountain portion MP2, and the third mountain portion MP3.
- Fin color FC includes a peripheral wall and a flange.
- the peripheral wall is configured to protrude from the flat surface portion SP.
- the flange is configured to project outward from the peripheral wall.
- the flange is provided at the tip opposite to the flat surface portion SP of the peripheral wall.
- the fin F includes a plurality of fin color FCs.
- the refrigeration cycle device 100 is, for example, an air conditioner and a refrigerator.
- an air conditioner will be described as an example of the refrigeration cycle device 100.
- the refrigeration cycle device 100 includes a refrigerant circuit RC, a refrigerant, a control device CD, and blower devices 6 and 7.
- the refrigeration cycle device 100 includes a refrigerant circulation device RCD.
- the refrigerant circulation device RCD is configured to circulate a refrigerant for heat exchange with air in the heat exchanger HE.
- the refrigeration cycle device 100 in which the compressor 1 is incorporated as the refrigerant circulation device RCD will be described.
- the refrigerant circulation device RCD may be a refrigerant pump.
- the refrigerant circuit RC includes a compressor 1, a four-way valve 2, an outdoor heat exchanger 3, a pressure reducing valve 4, and an indoor heat exchanger 5.
- the above heat exchanger HE may be applied to at least one of the outdoor heat exchanger 3 and the indoor heat exchanger 5.
- the compressor 1, the four-way valve 2, the outdoor heat exchanger 3, the pressure reducing valve 4, and the indoor heat exchanger 5 are connected by pipes.
- the refrigerant circuit RC is configured to circulate the refrigerant.
- the refrigerant circuit RC is configured to perform a refrigerating cycle in which the refrigerant circulates while undergoing a phase change.
- the compressor 1, the four-way valve 2, the outdoor heat exchanger 3, the pressure reducing valve 4, the control device CD, and the blower device 6 are housed in the outdoor unit 101.
- the indoor heat exchanger 5 and the blower device 7 are housed in the indoor unit 102.
- the refrigerant circulates in the order of the compressor 1, the four-way valve 2, the outdoor heat exchanger (condenser) 3, the pressure reducing valve 4, the indoor heat exchanger (evaporator) 5, and the four-way valve 2 during the cooling operation. It is configured as follows. Further, in the refrigerant circuit RC, during the heating operation, the refrigerant is charged in the order of the compressor 1, the four-way valve 2, the indoor heat exchanger (condenser) 5, the pressure reducing valve 4, the outdoor heat exchanger (evaporator) 3, and the four-way valve 2. It is configured to circulate.
- the refrigerant flows through the refrigerant circuit RC in the order of the compressor 1, the condenser, the pressure reducing valve 4, and the evaporator.
- the control device CD is configured to control each device of the refrigeration cycle device 100 by performing calculations, instructions, and the like.
- the control device CD is electrically connected to a compressor 1, a four-way valve 2, a pressure reducing valve 4, a blower device 6, 7, and the like, and is configured to control the operation thereof.
- the compressor 1 is configured to compress the refrigerant for heat exchange with air in the heat exchanger HE.
- the compressor 1 is configured to compress and discharge the sucked refrigerant.
- the compressor 1 may be configured to have a variable capacity.
- the compressor 1 may be configured to change its capacity by adjusting the rotation speed of the compressor 1 based on an instruction from the control device CD.
- the four-way valve 2 is configured to switch the flow of the refrigerant so that the refrigerant compressed by the compressor 1 flows to the outdoor heat exchanger 3 or the indoor heat exchanger 5.
- the four-way valve 2 is configured to allow the refrigerant discharged from the compressor 1 to flow to the outdoor heat exchanger (condenser) 3 during the cooling operation. Further, the four-way valve 2 is configured to allow the refrigerant discharged from the compressor 1 to flow to the indoor heat exchanger (evaporator) 5 during the heating operation.
- the outdoor heat exchanger 3 is configured to exchange heat between the refrigerant flowing inside the outdoor heat exchanger 3 and the air flowing outside the outdoor heat exchanger 3.
- the outdoor heat exchanger 3 is configured to function as a condenser that condenses the refrigerant during the cooling operation and as an evaporator that evaporates the refrigerant during the heating operation.
- the pressure reducing valve 4 is configured to reduce the pressure by expanding the refrigerant condensed by the condenser.
- the pressure reducing valve 4 is configured to reduce the pressure of the refrigerant condensed by the outdoor heat exchanger (condenser) 3 during the cooling operation and to reduce the pressure of the refrigerant condensed by the indoor heat exchanger (evaporator) 5 during the heating operation.
- the pressure reducing valve 4 is, for example, a solenoid valve.
- the indoor heat exchanger 5 is configured to exchange heat between the refrigerant flowing inside the indoor heat exchanger 5 and the air flowing outside the indoor heat exchanger 5.
- the indoor heat exchanger 5 is configured to function as an evaporator that evaporates the refrigerant during the cooling operation and as a condenser that condenses the refrigerant during the heating operation.
- the blower device 6 is configured to blow outdoor air to the outdoor heat exchanger 3. That is, the blower 6 is configured to supply air to the outdoor heat exchanger 3.
- the blower device 6 heat exchanges between the refrigerant and air by adjusting the amount of air flowing around the outdoor heat exchanger 3 by adjusting the rotation speed of the blower device 6 based on the instruction from the control device CD. It may be configured to adjust the amount.
- the blower device 7 is configured to blow indoor air to the indoor heat exchanger 5. That is, the blower 7 is configured to supply air to the indoor heat exchanger 5.
- the blower device 7 heat exchanges between the refrigerant and air by adjusting the amount of air flowing around the indoor heat exchanger 5 by adjusting the rotation speed of the blower device 7 based on the instruction from the control device CD. It may be configured to adjust the amount.
- the solid line arrow in FIG. 5 indicates the flow of the refrigerant during the cooling operation, and the broken line arrow in FIG. 5 indicates the flow of the refrigerant during the heating operation.
- the refrigeration cycle device 100 can selectively perform cooling operation and heating operation.
- the refrigerant circulates in the refrigerant circuit RC in the order of the compressor 1, the four-way valve 2, the outdoor heat exchanger 3, the pressure reducing valve 4, the indoor heat exchanger 5, and the four-way valve 2.
- the outdoor heat exchanger 3 functions as a condenser. Heat exchange is performed between the refrigerant flowing through the outdoor heat exchanger 3 and the air blown by the blower device 6.
- the indoor heat exchanger 5 functions as an evaporator. Heat exchange is performed between the refrigerant flowing through the indoor heat exchanger 5 and the air blown by the blower device 7.
- the refrigerant circulates in the refrigerant circuit RC in the order of the compressor 1, the four-way valve 2, the indoor heat exchanger 5, the pressure reducing valve 4, the outdoor heat exchanger 3, and the four-way valve 2.
- the indoor heat exchanger 5 functions as a condenser. Heat exchange is performed between the refrigerant flowing through the indoor heat exchanger 5 and the air blown by the blower device 7.
- the outdoor heat exchanger 3 functions as an evaporator. Heat exchange is performed between the refrigerant flowing through the outdoor heat exchanger 3 and the air blown by the blower device 6.
- the action and effect of the first embodiment will be described.
- the heat exchanger HE since the first mountain portion MP1 and the second mountain portion MP2 are configured to protrude from the flat surface portion SP, the influence of the dead water area can be suppressed. .. Therefore, the heat transfer coefficient of the fin F can be improved. Further, the strength of the fin F can be improved by the first mountain portion MP1, the second mountain portion MP2, and the third mountain portion MP3. Further, since the third mountain part MP3 is arranged on the leeward side of the first mountain part MP1 and the second mountain part MP2 in the air flow direction, it is possible to suppress the generation of frost on the fin F on the windward side. Can be done. Therefore, it is possible to suppress a decrease in frost bearing capacity.
- the second mountain portion MP2 is arranged between the first mountain portion MP1 and the through hole TH, and is configured to surround the through hole TH. Therefore, the strength of the fin F can be improved so as to surround the through hole TH by the second mountain portion MP2.
- Embodiment 2 Unless otherwise specified, the heat exchanger HE and the refrigeration cycle apparatus 100 according to the second embodiment have the same configuration, operation, and operation effect as the heat exchanger HE and the refrigeration cycle apparatus 100 according to the first embodiment. There is.
- Fin F contains the 4th Yamabe MP4.
- the fourth mountain portion MP4 is configured to protrude from the flat surface portion SP.
- the fourth mountain portion MP4 is configured to protrude from the flat portion SP in the same direction as the first mountain portion MP1, the second mountain portion MP2, and the third mountain portion MP3.
- the fourth mountain portion MP4 is configured to extend linearly in the longitudinal direction D2 of the fin F.
- the fourth mountain portion MP4 continuously extends from one end to the other end of the fin F in the longitudinal direction D2.
- the fourth mountain portion MP4 is arranged on the windward side of the first mountain portion MP1 and the second mountain portion MP2 in the air flow direction D0.
- the fourth mountain portion MP4 is arranged at a distance from the first mountain portion MP1 and the second mountain portion MP2 in the lateral direction D1 of the fin F.
- the fourth mountain portion MP4 is arranged at the leeward end of the fin F in the lateral direction D1.
- the height of the 4th mountain part MP4 protruding from the flat surface part SP is lower than that of the 3rd mountain part MP3.
- the fourth mountain portion MP4 extends in parallel with the third mountain portion MP3.
- the third mountain portion MP3 and the fourth mountain portion MP4 are arranged so as to sandwich the first mountain portion MP1 and the second mountain portion MP2.
- the height of the 4th mountain part MP4 protruding from the flat surface part SP is lower than that of the 2nd mountain part MP2.
- the height of the second mountain portion MP2 protruding from the flat surface portion SP is lower than that of the third mountain portion MP3.
- the fourth mountain portion MP4 is configured to extend linearly in the longitudinal direction D2 of the fin F. Therefore, the strength of the fin F can be improved in the longitudinal direction D2 of the fin F by the fourth mountain portion MP4.
- the fourth mountain portion MP4 is arranged on the windward side of the first mountain portion MP1 and the second mountain portion MP2 in the air flow direction D0. Further, the height of the fourth mountain portion MP4 protruding from the flat surface portion SP is lower than that of the third mountain portion MP3. Therefore, it is possible to suppress the generation of frost on the fin F on the leeward side.
- the height of the fourth mountain portion MP4 protruding from the flat surface portion SP is lower than that of the second mountain portion MP2, and the second mountain portion MP2 is the third mountain portion.
- the height protruding from the flat surface portion SP is lower than that of MP3. Therefore, it is possible to suppress the generation of frost on the fin F on the leeward side.
- Embodiment 3 Unless otherwise specified, the heat exchanger HE and the refrigeration cycle apparatus 100 according to the third embodiment have the same configuration, operation, and operation effect as the heat exchanger HE and the refrigeration cycle apparatus 100 according to the second embodiment. There is.
- the fourth mountain portion MP4 is configured to extend linearly in the longitudinal direction D2 of the fin F.
- the fourth mountain portion MP4 is arranged at intervals in the longitudinal direction D2 of the fin F.
- the fourth mountain portion MP4 is separated in the longitudinal direction D2 of the fin F.
- the fourth mountain portion MP4 is arranged intermittently and between the first mountain portions MP1 facing each other in the longitudinal direction D2 of the fin F.
- the fourth mountain portion MP4 is arranged so as to be offset from the first mountain portion MP1 and the second mountain portion MP2 in the lateral direction D1 of the fin F.
- the fourth mountain portion MP4 is arranged so as not to overlap the first mountain portion MP1 and the second mountain portion MP2 in the lateral direction D1 of the fin F.
- the fourth mountain portion MP4 is arranged so as to be offset from the first mountain portion MP1 and the second mountain portion MP2 in the lateral direction D1 of the fin F. Therefore, the strength of the fin F can be improved by arranging the fourth mountain portion MP4 in a place where stress is likely to be concentrated, which is a place where the first mountain portion MP1 and the second mountain portion MP2 are not formed. can.
- the 1st mountain part MP1 is not affected by the dead water area in the wake of the 4th mountain part MP4. Therefore, the heat transfer coefficient of the fin F can be improved.
- Embodiment 4 Unless otherwise specified, the heat exchanger HE and the refrigeration cycle apparatus 100 according to the fourth embodiment have the same configuration, operation, and operation effect as the heat exchanger HE and the refrigeration cycle apparatus 100 according to the second embodiment. There is.
- the first mountain part MP1 is longer on the leeward side than on the windward side with respect to the center of the through hole TH in the lateral direction D1 of the fin F.
- the first mountain portion MP1 has a larger area on the leeward side than on the windward side with respect to the center of the through hole TH in the lateral direction D1 of the fin F.
- the first mountain portion MP1 has a longer leeward side than the windward side with respect to the center of the through hole TH in the lateral direction D1 of the fin F. Therefore, it is possible to suppress the generation of frost on the windward side of the first mountain portion MP1.
- 1 Compressor 2 Four-way valve, 3 Outdoor heat exchanger, 4 Pressure reducing valve, 5 Indoor heat exchanger, 100 Refrigeration cycle device, D0 Flow direction, D1 Short direction, D2 Longitudinal direction, F fin, HE heat exchanger, MP1 1st mountain part, MP2 2nd mountain part, MP3 3rd mountain part, MP4 4th mountain part, P heat transfer tube, SP flat part, TH through hole.
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- 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)
Abstract
Description
図1~図4を参照して、実施の形態1に係る熱交換器HEの構成について説明する。
フィンFは、平面部SPと、第1山部MP1と、第2山部MP2と、第3山部MP3と、フィンカラーFCとを含んでいる。平面部SPは、平面状に構成されている。平面部SPは、平板状に構成されている。
制御装置CDは、演算、指示等を行って冷凍サイクル装置100の各機器等を制御するように構成されている。制御装置CDは、圧縮機1、四方弁2、減圧弁4、送風装置6、7などに電気的に接続されており、これらの動作を制御するように構成されている。
実施の形態1に係る熱交換器HEによれば、第1山部MP1および第2山部MP2は平面部SPから突出するように構成されているため、死水域の影響を抑制することができる。このため、フィンFの熱伝達率を向上させることができる。また、第1山部MP1、第2山部MP2および第3山部MP3によりフィンFの強度を向上させることができる。また、第3山部MP3は空気の流れ方向において第1山部MP1および第2山部MP2よりも風下側に配置されているため、風上側においてフィンFに霜が発生することを抑制することができる。したがって、着霜耐力の低下を抑制することができる。
実施の形態2に係る熱交換器HEおよび冷凍サイクル装置100は、特に説明しない限り、実施の形態1に係る熱交換器HEおよび冷凍サイクル装置100と同一の構成、動作および作用効果を有している。
実施の形態2に係る熱交換器HEによれば、第4山部MP4は、フィンFの長手方向D2に直線状に延びるように構成されている。このため、第4山部MP4によってフィンFの長手方向D2においてフィンFの強度を向上させることができる。
実施の形態3に係る熱交換器HEおよび冷凍サイクル装置100は、特に説明しない限り、実施の形態2に係る熱交換器HEおよび冷凍サイクル装置100と同一の構成、動作および作用効果を有している。
実施の形態3に係る熱交換器HEによれば、第4山部MP4は、フィンFの短手方向D1に第1山部MP1および第2山部MP2とずれるように配置されている。このため、第1山部MP1および第2山部MP2が形成されていない箇所である応力が集中し易い箇所に第4山部MP4が配置されることよって、フィンFの強度を向上させることができる。
実施の形態4に係る熱交換器HEおよび冷凍サイクル装置100は、特に説明しない限り、実施の形態2に係る熱交換器HEおよび冷凍サイクル装置100と同一の構成、動作および作用効果を有している。
実施の形態4に係る熱交換器HEによれば、第1山部MP1は、フィンFの短手方向D1において貫通孔THの中心に対して風上側よりも風下側が長い。このため、第1山部MP1の風上側で霜が発生することを抑制することができる。
Claims (6)
- 空気の流れ方向に沿う短手方向と前記空気の流れ方向に交差する長手方向とに延在するように構成されたフィンと、
前記フィンを貫通する伝熱管とを備え、
前記フィンには貫通孔が設けられており、
前記伝熱管は、前記貫通孔に挿入されており、
前記フィンは、平面部と、前記平面部から突出するように構成された第1山部、第2山部および第3山部とを含み、
前記第1山部は、前記長手方向に沿って湾曲するように構成されており、
前記第2山部は、前記第1山部と前記貫通孔との間に配置されておりかつ前記貫通孔を取り囲むように構成されており、
前記第3山部は、前記長手方向に直線状に延びるように構成されかつ前記空気の流れ方向において前記第1山部および前記第2山部よりも風下側に配置されている、熱交換器。 - 前記フィンは、前記平面部から突出するように構成された第4山部を含み、
前記第4山部は、前記長手方向に直線状に延びるように構成されており、前記空気の流れ方向において前記第1山部および前記第2山部よりも風上側に配置されており、かつ前記第3山部よりも前記平面部から突出する高さが低い、請求項1に記載の熱交換器。 - 前記第4山部は、前記第2山部よりも前記平面部から突出する高さが低く、
前記第2山部は、前記第3山部よりも前記平面部から突出する高さが低い、請求項2に記載の熱交換器。 - 前記第4山部は、前記短手方向に前記第1山部および前記第2山部とずれるように配置されている、請求項2または3に記載の熱交換器。
- 前記第1山部は、前記短手方向において前記貫通孔の中心に対して風上側よりも風下側が長い、請求項1~4のいずれか1項に記載の熱交換器。
- 請求項1~5のいずれか1項に記載の熱交換器と、
冷媒循環装置とを備え、
前記冷媒循環装置は、前記熱交換器において空気との間で熱交換を行うための冷媒を循環させるように構成されている、冷凍サイクル装置。
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EP20963561.4A EP4253894A4 (en) | 2020-11-27 | 2020-11-27 | HEAT EXCHANGER AND REFRIGERANT CIRCUIT DEVICE |
CN202080107266.XA CN116547490A (zh) | 2020-11-27 | 2020-11-27 | 热交换器以及制冷循环装置 |
JP2022564960A JPWO2022113297A1 (ja) | 2020-11-27 | 2020-11-27 | |
PCT/JP2020/044332 WO2022113297A1 (ja) | 2020-11-27 | 2020-11-27 | 熱交換器および冷凍サイクル装置 |
US18/247,090 US20230366639A1 (en) | 2020-11-27 | 2020-11-27 | Heat Exchanger and Refrigeration Cycle Apparatus |
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Citations (4)
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JPS5730591U (ja) * | 1980-07-25 | 1982-02-17 | ||
JPS5730589U (ja) * | 1980-07-25 | 1982-02-17 | ||
JP2005077083A (ja) | 2003-09-02 | 2005-03-24 | Lg Electronics Inc | 熱交換器 |
JP2019163909A (ja) * | 2018-03-20 | 2019-09-26 | 東京電力ホールディングス株式会社 | フィンチューブ式熱交換器 |
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JPS61235693A (ja) * | 1985-04-10 | 1986-10-20 | Matsushita Electric Ind Co Ltd | フインチユ−ブ型熱交換器 |
JP6337742B2 (ja) * | 2014-11-04 | 2018-06-06 | パナソニックIpマネジメント株式会社 | フィンチューブ熱交換器 |
CN110726325A (zh) * | 2019-11-19 | 2020-01-24 | 广东美的暖通设备有限公司 | 用于管翅式换热器的翅片、管翅式换热器及空调器 |
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JPS5730591U (ja) * | 1980-07-25 | 1982-02-17 | ||
JPS5730589U (ja) * | 1980-07-25 | 1982-02-17 | ||
JP2005077083A (ja) | 2003-09-02 | 2005-03-24 | Lg Electronics Inc | 熱交換器 |
JP2019163909A (ja) * | 2018-03-20 | 2019-09-26 | 東京電力ホールディングス株式会社 | フィンチューブ式熱交換器 |
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