WO2014050026A1 - Échangeur de chaleur - Google Patents

Échangeur de chaleur Download PDF

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Publication number
WO2014050026A1
WO2014050026A1 PCT/JP2013/005508 JP2013005508W WO2014050026A1 WO 2014050026 A1 WO2014050026 A1 WO 2014050026A1 JP 2013005508 W JP2013005508 W JP 2013005508W WO 2014050026 A1 WO2014050026 A1 WO 2014050026A1
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WO
WIPO (PCT)
Prior art keywords
flow
flow path
pipe
heat exchanger
resin case
Prior art date
Application number
PCT/JP2013/005508
Other languages
English (en)
Japanese (ja)
Inventor
智章 北野
竹下　豊晃
町田　和彦
明広 重田
Original Assignee
パナソニック株式会社
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 パナソニック株式会社 filed Critical パナソニック株式会社
Priority to CN201380050649.8A priority Critical patent/CN104704316B/zh
Priority to EP13841913.0A priority patent/EP2902741B1/fr
Publication of WO2014050026A1 publication Critical patent/WO2014050026A1/fr

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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
    • F28F1/30—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 being attachable to the element
    • 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
    • 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
    • F28D1/06—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 the heat-exchange conduits forming part of, or being attached to, the tank containing the body of fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
    • F28F13/06—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media
    • F28F13/08—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by varying the cross-section of the flow channels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
    • F28F21/06—Constructions of heat-exchange apparatus characterised by the selection of particular materials of plastics material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
    • F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
    • F28F21/081—Heat exchange elements made from metals or metal alloys
    • F28F21/085—Heat exchange elements made from metals or metal alloys from copper or copper alloys
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/001—Casings in the form of plate-like arrangements; Frames enclosing a heat exchange core
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/0246—Arrangements for connecting header boxes with flow lines
    • F28F9/0256—Arrangements for coupling connectors with flow lines
    • F28F9/0258—Arrangements for coupling connectors with flow lines of quick acting type, e.g. with snap action
    • 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
    • F28F2265/14—Safety or protection arrangements; Arrangements for preventing malfunction for preventing damage by freezing, e.g. for accommodating volume expansion

Definitions

  • the present invention relates to a heat exchanger that can be used, for example, as a water heater.
  • the bending work can be easily performed as compared with the formation of the double pipe by the metal pipe, and the external dimensions of the heat exchanger can be made compact by bending the metal pipe finely.
  • an object of the present invention is to provide a heat exchanger that can enhance the heat transfer promotion effect and reduce the pressure loss.
  • the heat exchanger according to the first aspect of the present invention includes a resin case that forms a first flow path through which a first fluid flows and a second flow path through which a second fluid flows, and is disposed in the first flow path. And the inside of the resin case separates the first flow path into a plurality of rows, the pipe has a one-way pipe portion that allows the second fluid to flow in one direction, and the other direction.
  • the other direction piping part which flows a 2nd fluid, and the bending part which connects the said one direction piping part and the said other direction piping part are comprised,
  • column is made of the said other direction piping part.
  • the heat exchanger according to the first aspect of the present invention further includes a lid that covers the opening end of the first flow path and is fixed to the resin case. Protruding portions for arranging the bent portions are provided.
  • a seal portion is provided at a portion of the pipe that protrudes from the resin case, and the lid portion includes a wall surface positioned at the opening end. And a pipe penetration part protruding from the wall surface, wherein the seal part and the pipe penetration part are sealed.
  • one end of the flow path forming portion is arranged to face the bent portion, and the opening end and the flow path forming are arranged.
  • the lid portion is fixed to the resin case so as to face the other end of the portion.
  • a water heater according to a sixth aspect of the present invention includes the heat exchanger according to any one of the first to fifth aspects.
  • the flow passage cross-sectional area of the one-way flow portion is reduced toward the downstream side, and the flow passage cross-sectional area of the other-direction flow portion is increased toward the downstream side.
  • the flow rate is increased in the unidirectional flow portion to enhance the heat transfer promotion effect, and the pressure loss is reduced in the flow portion in the other direction, so that a heat exchanger having high heat exchange efficiency and low pressure loss as a whole can be realized.
  • FIG. 1 is an external perspective view of a heat exchanger according to an embodiment of the present invention.
  • Perspective view of resin case used in the heat exchanger Perspective view of piping used in the heat exchanger Perspective view of the lid used for the heat exchanger
  • Exploded perspective view of the heat exchanger The perspective view which shows the assembly procedure of the heat exchanger Top view of resin case used in the heat exchanger Side view of the resin case Plan sectional view of the resin case Side sectional view of the resin case XX sectional view of FIG.
  • Plan sectional view of the flow path forming part Side sectional view of the flow path forming part Plan sectional view of the heat exchanger Sectional drawing of the 1st flow path of the 1st row
  • one row of first flow paths is formed around a one-way flow part formed around the other-direction pipe part and around the one-way pipe part.
  • a flow path forming part that separates into the other-direction flow part is provided, the flow-path cross-sectional area of the one-way flow part is reduced toward the downstream side, and the flow-path cross-sectional area of the other-direction flow part is directed toward the downstream side It is a big one.
  • the flow rate is increased in the unidirectional flow part to enhance the heat transfer promotion effect, and the pressure loss is reduced in the flow part in the other direction, thereby realizing a heat exchanger with high heat exchange efficiency and low pressure loss as a whole. it can.
  • the second embodiment of the present invention is provided with a convex portion for arranging a bent portion on the lid portion.
  • the pipe through which the second fluid flows causes a temperature difference between the inlet side and the outlet side by heat exchange, but the lid portion is formed by arranging the bent portion outside the resin case by the convex portion.
  • the temperature difference between the pipes can be reduced.
  • the heat exchanger can be reduced in size and assembled.
  • a third embodiment of the present invention seals a seal portion provided at a portion protruding from a resin case of piping and a pipe penetration portion protruding from a wall surface. To do. According to this Embodiment, the sealing performance and assembly property of a heat exchanger can be improved.
  • one end of the flow path forming portion is arranged to face the bent portion, and the opening end and the flow path forming portion are The lid is fixed to the resin case so as to face the other end.
  • the pipe is inserted into the resin case, and then the flow path forming portion is inserted so as to face the bent portion, and finally the lid portion is fixed to the resin case.
  • the fifth embodiment of the present invention is such that the outer shapes of both ends of the one-way flow portion and the other-direction flow portion are substantially semicircular. According to the present embodiment, even when the first fluid remaining in the one-way flow portion and the other-direction flow portion undergoes volume expansion due to freezing in winter, the stress accompanying the volume expansion can be dispersed. Therefore, damage to the resin case can be prevented.
  • a water heater according to the sixth embodiment of the present invention includes the heat exchanger according to the first to fifth embodiments. According to this Embodiment, the water heater provided with the heat exchanger which can raise a heat-transfer promotion effect and can make pressure loss small can be provided.
  • FIG. 1 is an external perspective view of a heat exchanger according to this embodiment.
  • the heat exchanger according to the present embodiment forms a resin case 10 forming a first flow path through which a first fluid flows, and a second flow path through which a second fluid flows.
  • a lid portion 30 that is fixed to the resin case 10.
  • the pipe 20 protruding from the lid part 30 is formed with a parallel part 20a in a part thereof.
  • the heat exchanger according to the present embodiment uses, for example, water as the first fluid and, for example, a refrigerant as the second fluid.
  • the heat exchanger according to this embodiment is connected in a ring shape with a compressor, an expansion valve, and an evaporator to form a refrigeration cycle.
  • a high-temperature refrigerant compressed by a compressor is introduced into the heat exchanger according to the present embodiment.
  • the first fluid can be heated.
  • the introduced water takes heat from the refrigerant and becomes hot water.
  • generates warm water can be utilized as water heaters, such as a heat pump water heater and a warm water heater.
  • a 1st fluid can be cooled.
  • steam or hot water generated by a boiler can be used as the second fluid.
  • FIG. 2 is a perspective view of a resin case used in the heat exchanger of the present invention.
  • the first flow path 11 is separated into a plurality of rows by partition walls 12.
  • the first flow path 11 is separated into five rows by the four partition walls 12.
  • the resin case 10 has an open end 13 on one surface, and the first flow path 11 is open.
  • the surface facing the open end 13 is a closed end 14 that is closed.
  • the plurality of rib portions 15 are provided at equal intervals, and are provided over the upper surface, the lower surface, and both side surfaces of the resin case 10.
  • the resin case 10 is made of thermoplastic crystalline plastic, and polyphenylene sulfide resin (PPS) is suitable.
  • PPS polyphenylene sulfide resin
  • the resin case 10 is integrally formed by a mold.
  • FIG. 3 is a perspective view of piping used in the heat exchanger of the present invention.
  • the pipe 20 is bent to connect the one-way pipe part 21 for flowing the second fluid in one direction, the other-direction pipe part 22 for flowing the second fluid in the other direction, and the one-way pipe part 21 and the other-direction pipe part 22. Part 23.
  • the pipe 20 is a metal pipe, and a copper pipe is suitable.
  • the one direction is a direction from the open end 13 toward the closed end 14 in a state where the pipe 20 is disposed in the resin case 10.
  • the other direction is a direction from the closed end 14 toward the open end 13 in a state where the pipe 20 is disposed in the resin case 10. Therefore, one direction and the other direction are opposite directions.
  • a seal portion 24 is provided at a portion of the pipe 20 that protrudes from the resin case 10.
  • One end of the pipe 20 forms an introduction connection pipe part 25a
  • the other end of the pipe 20 forms a lead-out connection pipe part 25b
  • the seal part 24 is provided in the lead-in connection pipe part 25a and the lead-out connection pipe part 25b.
  • the introduction connection pipe part 25 a and the lead-out connection pipe part 25 b on the end side of the seal part 24 protrude from the lid part 30.
  • the seal portion 24 is configured by a seal plate welded concentrically around the pipe 20 and an O-ring disposed in a groove provided on the outer periphery of the seal plate.
  • the pipe 20 is branched into four in parallel.
  • the pipe 20 has a first bent portion 23 connected to a downstream end portion of the first one-way pipe portion 21, and an upstream end portion of the first other-direction pipe portion 22 is connected to the first bent portion 23.
  • a second bent portion 23 is connected to the downstream end of the first other-direction piping portion 22.
  • the second bent part 23 is connected to the upstream end of the second one-way pipe part 21, and the third bent part 23 is connected to the downstream end of the second one-way pipe part 21,
  • the third bent portion 23 is connected to the upstream end portion of the second other-direction piping portion 22, and the fourth bent portion 23 is connected to the downstream end portion of the second other-direction piping portion 22. .
  • the pipe 20 is configured such that the second fluid flowing in the one-way pipe part 21 and the second fluid flowing in the other-direction pipe part 22 flow in opposite directions, the one-way pipe part 21, the bent part 23, and the other.
  • Direction piping part 22 is connected continuously.
  • the pipe 20 includes an introduction connecting pipe part 25a, a first one-way pipe part 21, a first bent part 23, a first other-way pipe part 22, a second bent part 23, a second one.
  • the part 21, the ninth bent part 23, the fifth other-direction pipe part 22, the tenth bent part 23, and the lead-out connecting pipe part 25b are sequentially formed.
  • the piping 20 was demonstrated from each structure and function as the introductory connecting pipe part 25a, the one-way piping part 21, the bending part 23, the other direction piping part 22, and the derivation
  • the piping 20 It is preferable to constitute by bending one copper tube without being connected by welding.
  • the pipe 20 is branched into four in parallel, so that the four first one-way pipe parts 21, the four first bent parts 23, and the four first other parts.
  • a directional piping part 22 is provided.
  • the one-way piping part 21 and the other direction piping part 22 are not formed in a straight shape but are formed in a wave shape.
  • FIG. 4 is a perspective view of a lid used in the heat exchanger of the present invention.
  • the lid portion 30 includes a wall surface 31 located at the opening end 13 and a pipe penetration portion 32 that protrudes from the wall surface 31.
  • the wall surface 31 covers the open end 13 of the first flow path 11.
  • the pipe penetration part 32 is disposed on both sides of the wall surface 31.
  • a convex portion 33 is provided on the wall surface 31 of the lid portion 30.
  • the convex portion 33 is disposed between the two pipe penetration portions 32.
  • a bent portion 23 is disposed on the opening end 13 side of the convex portion 33.
  • a seal portion 24 is disposed in the pipe penetration portion 32.
  • the pipe penetration part 32 has a cylinder part 32b for introducing the first fluid or a cylinder part 32c for deriving the first fluid, in addition to the cylinder part 32a that penetrates the pipe 20.
  • the cylindrical portion 32 a that penetrates the pipe 20 and the cylindrical portion 32 b that introduces the first fluid, or the cylindrical portion 32 a and the cylindrical portion 32 c that leads out the first fluid are centered in a direction perpendicular to the wall surface 31.
  • the pipe penetrating part 32 includes a cylindrical part 32d for a hole for forming a hole that communicates the cylindrical part 32a that penetrates the pipe 20 and the cylindrical part 32b that introduces the first fluid, and a pipe.
  • a through hole cylinder portion 32d for forming a hole communicating between the cylinder portion 32a penetrating 20 and the cylinder portion 32c leading out the first fluid at the time of resin integral molding.
  • These punched hole cylinder portions 32d are closed by a stopper 32e having a seal material on the outer periphery.
  • the pipe penetrating portion 32 disposed on one side of the wall surface 31 includes a cylindrical portion 32a that leads out the second fluid, a cylindrical portion 32b that introduces the first fluid, and a cylindrical portion 32d for hole.
  • the pipe penetrating portion 32 disposed on the other side of the wall surface 31 includes a cylindrical portion 32a for introducing the second fluid, a cylindrical portion 32c for deriving the first fluid, and a cylindrical portion 32d for a hole.
  • the lid 30 is made of the same material as the resin case 10. For example, thermoplastic crystalline plastics, particularly polyphenylene sulfide resin (PPS) are suitable.
  • the lid part 30 is integrally formed of resin.
  • a plurality of fastening holes 34 are provided on the outer periphery of the wall surface 31 in order to fix the lid 30 to the resin case 10.
  • FIG. 5 is an exploded perspective view of the heat exchanger of the present invention.
  • the heat exchanger of the present invention includes a resin case 10, a pipe 20, a flow path forming part 40, a packing 50, and a lid part 30.
  • the flow path forming part 40 is arranged in the resin case 10, and the one-way flow part formed around the other-direction pipe part 22 in the first flow path 11 in one row and the periphery of the one-way pipe part 21. And the other-direction flow part formed in the.
  • the packing 50 is disposed between the resin case 10 and the lid 30, and the airtightness between the resin case 10 and the lid 30 and the airtightness between the flow path forming unit 40 and the lid 30. Secure.
  • the heat exchanger of the present invention includes a first fluid introduction pipe 61 that introduces a first fluid, a first fluid introduction pipe 62 that derives a first fluid, a second fluid introduction pipe 71 that introduces a second fluid, and a second fluid.
  • a second fluid outlet pipe 72 for leading the fluid is provided.
  • the first fluid introduction pipe 61 is connected to the cylindrical portion 32b that introduces the first fluid.
  • the first fluid outlet pipe 62 is connected to the cylindrical portion 32c that guides the first fluid.
  • the second fluid introduction pipe 71 is connected to the introduction connection pipe portion 25a.
  • the second fluid outlet pipe 72 is connected to the outlet connecting pipe portion 25b.
  • the first fluid introduction pipe 61 has an L-shaped bent portion and is connected to the pipe penetration portion 32 disposed on one side portion of the wall surface 31.
  • the first fluid introduction tube 61 has a parallel portion 61 a that is substantially parallel to the wall surface 31.
  • the parallel portion 61 a has a length from one side portion of the wall surface 31 to the other side portion of the wall surface 31.
  • the convex part 33 is made to protrude in the space produced between the wall surface 31 and the parallel part 61a.
  • the lead-out connecting pipe portion 25 b for leading the second fluid is also substantially parallel to the wall surface 31 by forming an L-shaped bent portion, and the wall surface from one side of the wall surface 31 to the wall surface.
  • a parallel portion 20 a reaching the other side portion of 31 is formed.
  • FIG. 6 is a perspective view showing the assembly procedure of the heat exchanger of the present invention.
  • the pipe 20 is inserted from the open end 13 and placed in the resin case 10.
  • a first one-way piping portion 21 and a first other-direction piping portion 22 are arranged in the first flow path 11 in one row.
  • the flow path forming portion 40 is inserted from the open end 13, and one end of the flow path forming portion 40 is opposed to the bent portion 23 located on the closed end 14 side, It arrange
  • the flow path forming portion 40 is disposed between the first one-way piping portion 21 and the first other-direction piping portion 22 that are disposed in the first flow passage 11 in one row.
  • one row of the first flow paths 11 is formed around the one-way flow part 22 around the other-direction pipe part 22 and the other around the one-way pipe part 21. It can be separated into a directional flow section.
  • the packing 50 is disposed at the opening end 13.
  • the packing 50 is located on the outer periphery of the open end 13 and the flow path forming portion 40, and has an airtightness between the resin case 10 and the lid portion 30 and an airtightness between the flow path forming portion 40 and the lid portion 30. Can be secured.
  • the lid 30 is brought into contact with the open end 13 and the other end of the flow path forming portion 40 so as to face each other, and the lid 30 is fixed to the resin case 10 using the fastener 35. Both ends of the pipe 20 pass through the cylindrical portion 32 a for introducing the second fluid and the cylindrical portion 32 a for extracting the second fluid, and are protruded from the resin case 10.
  • the seal part 24 is located in the cylinder part 32a.
  • the piping 20 arrange
  • the pipe 20 in which the parallel part 20a is formed is connected to a second fluid outlet pipe 72 that guides the second fluid.
  • positioned at the cylinder part 32a which introduces a 2nd fluid connects with the 2nd fluid introduction pipe
  • the state shown in FIG. 1 is obtained by connecting the first fluid introduction pipe 61 and the first fluid outlet pipe 62 from the state shown in FIG.
  • FIG. 7 is a plan view of a resin case used in the heat exchanger of the present invention
  • FIG. 8 is a side view of the resin case
  • FIG. 9 is a plan sectional view of the resin case
  • FIG. 10 is a side view of the resin case.
  • FIG. 11 is a sectional view taken along the line XX of FIG.
  • the resin case 10 is provided with a plurality of rib portions 15 between the open end 13 and the closed end 14.
  • the plurality of rib portions 15 have a plane perpendicular to the flow direction of the first fluid.
  • the plurality of rib portions 15 do not necessarily have to face in a direction perpendicular to the flow direction of the first fluid. That is, the plurality of rib portions 15 only need to straddle at least two rows of the first flow paths 11, for example, the first flow path 11 a of the first row and the first flow path 11 b of the second row.
  • rib portions 15 parallel to the flow direction of the first fluid are connected to the first flow passage 11 a in the first row, the first flow passage 11 b in the second row, and the first flow passage 11 b in the third row. It is preferable to provide each of the first flow paths 11c and the first flow paths 11 in the other rows.
  • the partition wall 12 separates the first channel 11 a in the first row and the first channel 11 b in the second row.
  • the partition wall 12 includes a partition wall 12a that forms the first flow path 11a in the first row and a partition wall 12b that forms the first flow path 11b in the second row.
  • the partition wall 12 separates the first flow path 11b in the second row and the first flow path 11c in the third row.
  • the partition wall 12 includes a partition wall 12c that forms the first flow path 11b in the second row and a partition wall 12d that forms the first flow path 11c in the third row. The same applies to the other partition walls 12.
  • the partition walls 12 a forming the first flow path 11 a in the first row and the partition walls 12 b forming the first flow path 11 b in the second row are connected by a plurality of rib portions 15. Further, the partition walls 12c forming the first flow path 11b in the second row and the partition walls 12d forming the first flow path 11c in the third row are connected by a plurality of rib portions 15. The same applies to the other partition walls 12. Accordingly, the first flow paths 11 separated into a plurality of rows are connected by the rib portion 15. Since a space is formed between the first flow paths 11 other than the rib portion 15, the first flow paths 11 adjacent to each other, for example, the first flow paths 11a in the first row and the first flow paths in the second row. Heat transfer with 11b can be prevented.
  • a space is formed between the first flow paths 11 separated into a plurality of rows except for the rib portion 15, but may be connected without forming a space.
  • the first flow path 11 has a temperature gradient from a low temperature to a high temperature from the inlet toward the outlet, and not only in each row of the first flow passage 11 but also in the first flow passage 11 in one row depending on the position. Is different.
  • the outer periphery of the resin case 10 is provided with a heat insulating material or covered with an outer case. Therefore, by separating the outer peripheral portion of the resin case 10 into a plurality of spaces by the plurality of rib portions 15, heat transfer in the outer peripheral portion of the resin case 10 can be prevented, and heat dissipation loss can be reduced.
  • the width of the first flow path 11 is W, the height is H, the width on the open end 13 side is W1, the height is H1, the width on the closed end 14 side is W2, and the height is H2. Further, W1> W2 and H1> H2.
  • the width W1 and the height H1 on the open end 13 side are made larger than the width W2 and the height H2 on the closed end 14 side, so that the flow path cross-sectional area on the open end 13 side. Becomes larger than the cross-sectional area of the flow path on the closed end 14 side. That is, the channel cross-sectional area of the first channel 11 continuously decreases from the open end 13 side to the closed end 14.
  • the flow path forming unit 40 separates the first flow path 11 into a one-way flow part formed around the other-direction pipe part 22 and an other-direction flow part formed around the one-way pipe part 21.
  • the channel cross-sectional area of the one-way flow portion decreases toward the downstream side, that is, from the opening end 13 toward the closed end 14, and the channel cross-sectional area of the other-direction flow portion decreases toward the downstream side. That is, it becomes larger from the closed end 14 toward the open end 13. Therefore, the flow rate is increased in the unidirectional flow portion to enhance the heat transfer promotion effect, and the pressure loss is reduced in the flow portion in the other direction, so that a heat exchanger with high heat exchange efficiency and low pressure loss as a whole can be realized.
  • FIG. 12 is a plan view of a flow path forming portion used in the heat exchanger of the present invention
  • FIG. 13 is a side view of the flow path forming portion
  • FIG. 14 is a YY sectional view of FIG. 13, and FIG. -Z sectional view
  • FIG. 16 is a plan sectional view of the flow path forming portion
  • FIG. 17 is a side sectional view of the flow path forming portion.
  • the flow path forming portion 40 is formed with a hollow portion 41 that becomes a cavity, and is formed in a columnar shape by the upper surface 42, the lower surface 42, and the side surface 43. Further, both end surfaces 44 of the flow path forming unit 40 are closed. Enlarged portions 41 a are formed above and below the hollow portion 41.
  • a ridge 42 a is formed in the longitudinal direction at the center of each of the upper surface 42 and the lower surface 42.
  • a concave portion 43a is formed in the side surface 43 in the longitudinal direction. Since the flow path forming portion 40 is formed with a hollow portion 41 by space, the flow path forming portion 40 is easily deformed by the hollow portion 41, and therefore, even when the first fluid is volume-expanded by freezing in winter, Damage to the resin case 10 can be prevented.
  • FIG. 18 is a plan sectional view of the heat exchanger of the present invention
  • FIG. 19 is a sectional view of the first flow path in the first row in FIG.
  • One flow path forming unit 40 is disposed in the first flow path 11a of the first row.
  • the first flow path 11 a one end of the flow path forming part 40 faces the bent part 23, and the other end of the flow path forming part 40 faces the lid part 30.
  • the first flow path 11 a in the first row is formed between the one-way flow part 81 formed around the other-direction pipe part 22 and the one-way pipe part 21. It is separated from the other-direction flow part 82 formed around.
  • first flow path 11b in the second row, the first flow path 11c in the third row, and the first flow passage 11 in the other rows are each similarly provided with one flow passage forming portion 40, and the one-way flow portion 81. And the other-direction flow part 82 are formed.
  • the one end 16a and the other end 16b in the cross section perpendicular to the flow direction of the unidirectional flow portion 81 are both substantially semicircular in outer shape and inner shape.
  • the outer shape and inner shape of one end 16a and the other end 16b of the unidirectional flow portion 81 are concentric with the pipe 20, and the thickness of the substantially semicircular one end 16a and the other end 16b is constant.
  • the one end 17a and the other end 17b in the cross section perpendicular to the flow direction of the other-direction flow portion 82 are both substantially semicircular in outer shape and inner shape.
  • the outer shape and the inner shape of the one end 17a and the other end 17b of the other-direction flow portion 82 are concentric with the pipe 20, and the thickness of the substantially semicircular one end 17a and the other end 17b is constant.
  • a case-side protrusion is formed between one end 16a of the one-way flow portion 81 and one end 17a of the other-direction flow portion 82 and between the other end 16b of the one-way flow portion 81 and the other end 17b of the other-direction flow portion 82.
  • a ridge 18 is formed. The case-side ridge 18 is projected outward at a position corresponding to the ridge 42 a of the flow path forming unit 40.
  • the outer shapes of both ends 16a and 16b of the unidirectional flow portion 81 and the outer shapes of both ends 17a and 17b of the other direction flow portion 82 are substantially semicircular. Thereby, even when the first fluid remaining in the one-way flow portion 81 and the other-direction flow portion 82 expands in volume due to freezing in winter, the stress accompanying the volume expansion can be dispersed and the resin case 10 is damaged. Can be prevented. Further, the flow path forming portion 40 is accurately arranged in the resin case 10 by the case-side convex strip portion 18 provided at a position corresponding to the convex strip portion 42 a of the flow path forming portion 40, and the one-way flow portion 81. And the other direction flow part 82 can be formed uniformly.
  • the protruding height of the case-side ridges 18 is low, but by setting the height to be the same as the ribs 15, heat transfer at the outer periphery of the resin case can be prevented, and heat dissipation loss can be reduced. Can be reduced.
  • the present invention can be used as a water heater or a cooler using steam or high-temperature water generated by a boiler in addition to a refrigerant.

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)
  • Details Of Fluid Heaters (AREA)

Abstract

L'invention porte sur un échangeur de chaleur, lequel échangeur comporte des parties de formation de trajectoire d'écoulement (40), qui divisent une rangée de premières trajectoires d'écoulement (11) en parties d'écoulement d'une direction (81) formées autour de parties de tubulure d'une autre direction (22) et de parties d'écoulement d'une autre direction (82) formées autour de parties de tubulure d'une direction (21). La surface de section transversale des parties d'écoulement d'une direction (81) diminue vers le côté aval, et la surface de section transversale des parties d'écoulement de l'autre direction (82) augmente vers le côté aval. Par conséquent, l'effet de favorisation de transfert de chaleur peut être accru, et une perte de pression peut être diminuée.
PCT/JP2013/005508 2012-09-28 2013-09-18 Échangeur de chaleur WO2014050026A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201380050649.8A CN104704316B (zh) 2012-09-28 2013-09-18 热交换器
EP13841913.0A EP2902741B1 (fr) 2012-09-28 2013-09-18 Échangeur de chaleur

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012216293A JP6057154B2 (ja) 2012-09-28 2012-09-28 熱交換器
JP2012-216293 2012-09-28

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WO2014050026A1 true WO2014050026A1 (fr) 2014-04-03

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JP (1) JP6057154B2 (fr)
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Publication number Priority date Publication date Assignee Title
RU184599U1 (ru) * 2017-04-11 2018-10-31 Ришат Сафуанович Шаймухаметов Водотрубный котел
RU2646524C1 (ru) * 2017-04-11 2018-03-05 Ришат Сафуанович Шаймухаметов Котел водотрубный
JP6735924B2 (ja) * 2017-07-24 2020-08-05 三菱電機株式会社 熱交換器及び冷凍サイクル装置
CN108627032B (zh) * 2018-05-17 2024-03-08 温志远 热水器热水余热回收装置
CN115654992A (zh) * 2022-11-08 2023-01-31 浙江银轮机械股份有限公司 排气结构及换热器

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US2870997A (en) * 1953-06-10 1959-01-27 Soderstrom Sten Heat exchanger
JPS5450705A (en) * 1977-09-30 1979-04-20 Hitachi Ltd Multi-tube heat exchanger
US4215743A (en) * 1978-03-08 1980-08-05 Margittai Thomas B Coaxial heat exchanger device
JPS6314063A (ja) * 1986-06-30 1988-01-21 新菱冷熱工業株式会社 過冷却式氷蓄熱装置
JPH02107892A (ja) * 1988-10-17 1990-04-19 Ebara Corp 冷媒又は熱媒伝熱配管の取付構造
JP2001027157A (ja) * 1999-07-13 2001-01-30 Mitsubishi Motors Corp Ｅｇｒクーラの構造
JP2002162177A (ja) * 2000-11-27 2002-06-07 Kanagawa Prefecture 熱交換器要素
JP2002333290A (ja) 2001-05-02 2002-11-22 Rinnai Corp 給湯器の液−液熱交換器
JP2011122818A (ja) * 2009-12-08 2011-06-23 Visteon Global Technologies Inc 管束を有する熱交換器
WO2012111308A1 (fr) * 2011-02-14 2012-08-23 パナソニック株式会社 Échangeur de chaleur et son procédé de fabrication

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JPH0547957Y2 (fr) * 1986-04-19 1993-12-17
JP5559088B2 (ja) * 2010-05-18 2014-07-23 株式会社ワイ・ジェー・エス． 熱交換器

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2870997A (en) * 1953-06-10 1959-01-27 Soderstrom Sten Heat exchanger
JPS5450705A (en) * 1977-09-30 1979-04-20 Hitachi Ltd Multi-tube heat exchanger
US4215743A (en) * 1978-03-08 1980-08-05 Margittai Thomas B Coaxial heat exchanger device
JPS6314063A (ja) * 1986-06-30 1988-01-21 新菱冷熱工業株式会社 過冷却式氷蓄熱装置
JPH02107892A (ja) * 1988-10-17 1990-04-19 Ebara Corp 冷媒又は熱媒伝熱配管の取付構造
JP2001027157A (ja) * 1999-07-13 2001-01-30 Mitsubishi Motors Corp Ｅｇｒクーラの構造
JP2002162177A (ja) * 2000-11-27 2002-06-07 Kanagawa Prefecture 熱交換器要素
JP2002333290A (ja) 2001-05-02 2002-11-22 Rinnai Corp 給湯器の液−液熱交換器
JP2011122818A (ja) * 2009-12-08 2011-06-23 Visteon Global Technologies Inc 管束を有する熱交換器
WO2012111308A1 (fr) * 2011-02-14 2012-08-23 パナソニック株式会社 Échangeur de chaleur et son procédé de fabrication

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Title
See also references of EP2902741A4 *

Also Published As

Publication number Publication date
CN104704316B (zh) 2017-03-08
EP2902741B1 (fr) 2016-11-02
JP2014070779A (ja) 2014-04-21
EP2902741A4 (fr) 2015-12-02
EP2902741A1 (fr) 2015-08-05
JP6057154B2 (ja) 2017-01-11
CN104704316A (zh) 2015-06-10

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