WO2020217308A1 - Échangeur à plaques - Google Patents

Échangeur à plaques Download PDF

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Publication number
WO2020217308A1
WO2020217308A1 PCT/JP2019/017200 JP2019017200W WO2020217308A1 WO 2020217308 A1 WO2020217308 A1 WO 2020217308A1 JP 2019017200 W JP2019017200 W JP 2019017200W WO 2020217308 A1 WO2020217308 A1 WO 2020217308A1
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WO
WIPO (PCT)
Prior art keywords
flow path
fluid
axis direction
hole
holes
Prior art date
Application number
PCT/JP2019/017200
Other languages
English (en)
Japanese (ja)
Inventor
田中　信雄
Original Assignee
株式会社日阪製作所
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社日阪製作所 filed Critical 株式会社日阪製作所
Priority to PCT/JP2019/017200 priority Critical patent/WO2020217308A1/fr
Priority to EP19925924.3A priority patent/EP3951309A4/fr
Priority to CN201980091426.3A priority patent/CN113424010B/zh
Priority to JP2021515349A priority patent/JP7300500B2/ja
Publication of WO2020217308A1 publication Critical patent/WO2020217308A1/fr

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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
    • F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D9/0031—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other
    • F28D9/0043—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other the plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another
    • F28D9/005—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other the plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another the plates having openings therein for both heat-exchange media
    • 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
    • F28F9/0265—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits by using guiding means or impingement means inside the header box
    • 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
    • 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
    • F28F9/028—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits by using inserts for modifying the pattern of flow inside the header box, e.g. by using flow restrictors or permeable bodies or blocks with channels

Definitions

  • the present invention relates to a plate heat exchanger used as an evaporator or a condenser.
  • plate heat exchangers have been widely used as evaporators for evaporating fluids and condensers for condensing fluids (see Japanese Patent Application Laid-Open No. 11-287572).
  • the plate heat exchanger includes a plurality of heat transfer plates 101 as shown in FIGS. 17 to 19.
  • a plurality of heat transfer plates 101 are superposed in the X-axis direction to flow a first fluid A to be evaporated or condensed, and a first flow path Ra and a first fluid A.
  • a second flow path Rb through which a second fluid B (second fluid B to be heat exchanged with the first fluid A) for evaporating or condensing is formed.
  • the first fluid supply path Ra1 communicating with only the first flow path Ra and allowing the first fluid A to flow into the first flow path Ra, and the first flow.
  • the first fluid discharge path Ra2 that communicates only with the path Ra and causes the first fluid A to flow out from the first flow path Ra
  • the second fluid B that communicates only with the second flow path Rb and flows into the second flow path Rb.
  • a second fluid supply path Rb1 and a second fluid discharge path Rb2 that communicates only with the second flow path Rb and allows the second fluid B to flow out from the second flow path Rb are formed.
  • each of the plurality of heat transfer plates 101 has a first surface in the X-axis direction and a second surface on the opposite side of the first surface.
  • a plurality of recesses and ridges are formed on each of the first surface and the second surface of the heat transfer plate 101.
  • Each of the plurality of heat transfer plates 101 has a first hole 102 penetrating in the X-axis direction, a second hole 103 penetrating in the X-axis direction, and a third hole 104 penetrating in the X-axis direction at different positions. It has a fourth hole 105 penetrating in the X-axis direction.
  • the first hole 102 is arranged at one end of the heat transfer plate 101 on the one end side in the Y-axis direction orthogonal to the X-axis direction in the Z-axis direction orthogonal to the X-axis direction and the Y-axis direction.
  • the second hole 103 is arranged at one end in the Z-axis direction in the region on the other end side in the Y-axis direction of the heat transfer plate 101.
  • the third hole 104 is arranged at the other end of the heat transfer plate 101 on the other end side in the Y-axis direction in the Z-axis direction.
  • the fourth hole 105 is arranged at the other end of the heat transfer plate 101 on the one end side in the Y-axis direction in the Z-axis direction (see FIG. 17).
  • the plurality of heat transfer plates 101 are overlapped with each other, so that the ridges of the adjacent heat transfer plates 101 intersect with each other, whereby the first flow path Ra or the first flow path Ra or the first flow path Ra or the first flow path Ra or the second between the adjacent heat transfer plates 101.
  • Two flow paths Rb are formed.
  • the first flow path Ra and the second flow path Rb are alternately formed with the heat transfer plate 101 as a boundary.
  • first holes 102 of the plurality of heat transfer plates 101 are connected in the X-axis direction to form the first fluid supply path Ra1.
  • second holes 103 of the plurality of heat transfer plates 101 are connected in the X-axis direction to form the first fluid discharge path Ra2.
  • third holes 104 of the plurality of heat transfer plates 101 are connected in the X-axis direction to form the second fluid supply path Rb1.
  • fourth holes 105 of the plurality of heat transfer plates 101 are connected in the X-axis direction to form the second fluid discharge path Rb2.
  • the first fluid A supplied to the first fluid supply path Ra1 flows out to the first fluid discharge path Ra2 through the first flow path Ra.
  • the second fluid B supplied to the second fluid supply path Rb1 flows out to the second fluid discharge path Rb2 through the second flow path Rb.
  • the first fluid A and the second fluid B exchange heat via the heat transfer plate 101 that separates the first flow path Ra and the second flow path Rb.
  • the lengths of the first fluid supply path Ra1, the first fluid discharge path Ra2, the second fluid supply path Rb1, and the second fluid discharge path Rb2 in the X-axis direction become longer. , It becomes longer according to the number of heat transfer plates 101 to be overlapped.
  • the first fluid supply path Ra1 is formed by connecting the first holes 102 of the plurality of heat transfer plates 101.
  • the first fluid discharge path Ra2 is formed by connecting the second holes 103 of the plurality of heat transfer plates 101.
  • the second fluid supply path Rb1 is formed by connecting the third holes 104 of the plurality of heat transfer plates 101.
  • the second fluid discharge path Rb2 is formed by connecting the fourth holes 105 of the plurality of heat transfer plates 101. Therefore, each of the flow path lengths of the first fluid supply path Ra1, the first fluid discharge path Ra2, the second fluid supply path Rb1, and the second fluid discharge path Rb2 has a large number of heat transfer plates 101 to be overlapped with each other. If so, it will be longer according to the number.
  • the flow resistance of the first fluid A in the first fluid supply path Ra1 for flowing the first fluid A into the first flow path Ra increases. It becomes difficult for the first fluid A to circulate in the one fluid supply path Ra1. Therefore, in the plate heat exchanger 100, the inflow amount of the first fluid A into the first flow path Ra on the inlet side of the first fluid supply path Ra1 and the inflow amount of the first fluid A into the first flow path Ra on the back side of the first fluid supply path Ra1. The inflow amount of the first fluid A becomes non-uniform.
  • the plate heat exchanger 100 uneven distribution of the first fluid A occurs with respect to a plurality of first flow paths Ra arranged in the X-axis direction.
  • the heat exchange performance evaporation performance or condensation performance
  • the plate heat exchanger according to the present invention
  • a plurality of heat transfer plates having through holes penetrating in a predetermined direction at positions corresponding to each other, and by being overlapped in the predetermined direction, a first flow path through which the first fluid flows and a second flow path through which the second fluid flows.
  • a plurality of heat transfer plates that alternately form a flow path in the predetermined direction with each of the plurality of heat transfer plates as a boundary.
  • a group of flow path forming members extending in a predetermined direction at positions corresponding to the through holes of the plurality of heat transfer plates are provided.
  • the flow path forming member group is composed of a plurality of flow path forming members connected in a predetermined direction.
  • At least two of the plurality of flow path forming members have through holes penetrating the flow path forming member in the predetermined direction.
  • the through holes of the at least two flow path forming members form a first fluid supply path for supplying the first fluid to the first flow path by communicating with each other.
  • the first fluid supply path is An introduction part that extends in the predetermined direction and the first fluid is introduced from the outside, A first branch portion arranged in an intermediate portion of the plurality of heat transfer plates arranged in a predetermined direction and branching the first fluid introduced into the introduction portion into one side and the other side in the predetermined direction.
  • An open portion that directly or indirectly communicates with the one side or the other side of the first branch portion, and a plurality of open portions that open toward the corresponding first flow path at a plurality of locations in the predetermined direction. ,including.
  • Each of the plurality of flow path forming members may be sandwiched around the through hole of two heat transfer plates of the plurality of heat transfer plates.
  • the first fluid supply path is between the first branch portion and the plurality of open portions communicating with the one side of the first branch portion, and the first branch portion and the first branch portion.
  • At least one second branch portion that branches the first fluid into one side and the other side in the predetermined direction may be provided between the plurality of open portions communicating with the other side.
  • FIG. 1 is an overall perspective view of a plate heat exchanger according to an embodiment of the present invention.
  • FIG. 2 is a schematic exploded perspective view of the plate heat exchanger according to the embodiment.
  • FIG. 3 is a schematic view of one of the two types of heat transfer plates of the plate heat exchanger according to the same embodiment as viewed from the front surface side.
  • FIG. 4 is a schematic view of one of the two types of heat transfer plates of the plate heat exchanger according to the same embodiment as viewed from the second surface side.
  • FIG. 5 is a schematic view of the other heat transfer plate of the two types of heat transfer plates of the plate heat exchanger according to the same embodiment as viewed from the second surface side.
  • FIG. 1 is an overall perspective view of a plate heat exchanger according to an embodiment of the present invention.
  • FIG. 2 is a schematic exploded perspective view of the plate heat exchanger according to the embodiment.
  • FIG. 3 is a schematic view of one of the two types of heat transfer plates of the plate heat exchanger according to the same embodiment as
  • FIG. 6 is a schematic view of the heat transfer plate of the other of the two types of heat transfer plates of the plate heat exchanger according to the same embodiment as viewed from the front surface side.
  • FIG. 7 is a perspective view showing a state in which a plurality of flow path forming members included in the plate heat exchanger according to the same embodiment are arranged in the X-axis direction.
  • FIG. 8 is an external front view showing only a common configuration of a plurality of flow path forming members included in the plate heat exchanger according to the embodiment.
  • FIG. 9 is an external side view showing only a common configuration of a plurality of flow path forming members included in the plate heat exchanger according to the embodiment.
  • FIG. 10 is a cross-sectional view taken along the line XX of FIG.
  • FIG. 11 is a cross-sectional view taken along the line XI-XI of FIG. 1 in which a flow of the second fluid is added.
  • FIG. 12 is a perspective view of a state in which a plurality of flow path forming members included in the plate heat exchanger according to the same embodiment are arranged in the X-axis direction, and is a view to which a flow of the first fluid is added.
  • FIG. 13 is a perspective view showing a state in which a plurality of flow path forming members included in the plate heat exchanger according to another embodiment of the present invention are arranged in the X-axis direction.
  • FIG. 14 is an external front view showing only a common configuration of a plurality of flow path forming members included in the plate heat exchanger according to another embodiment.
  • FIG. 15 is a cross-sectional view of the plate heat exchanger according to the other embodiment, in which the flow of the first fluid is added.
  • FIG. 16 is a cross-sectional view of a plate heat exchanger according to another embodiment of the present invention, in which a flow of a first fluid is added.
  • FIG. 17 is a schematic exploded perspective view of a conventional plate heat exchanger.
  • FIG. 18 is a cross-sectional view of a conventional plate heat exchanger with a flow of the first fluid added.
  • FIG. 19 is a cross-sectional view of a conventional plate heat exchanger with a flow of a second fluid added.
  • the plate heat exchanger according to the present embodiment includes a plurality of heat transfer plates 2 and 3 stacked in the X-axis direction (first direction), which is a predetermined direction.
  • the plate heat exchanger 1 according to the present embodiment has a plurality of flow path forming members 4 arranged between adjacent heat transfer plates 2 and 3 in addition to the plurality of heat transfer plates 2 and 3.
  • the plate heat exchanger 1 includes a pair of end plates 5 and 6 sandwiching a plurality of heat transfer plates 2 and 3 stacked in the X-axis direction.
  • each of the plurality of heat transfer plates 2 and 3 has a plate body 20 having a first surface Sa and a second surface Sb on the opposite side of the first surface Sa in the X-axis direction. , 30.
  • the heat transfer plates 2 and 3 have annular fitting portions 21 and 31 connected to the outer periphery of the plate main bodies 20 and 30 and extending in a direction intersecting the plate main bodies 20 and 30. Be prepared.
  • the first surface Sa and the second surface Sb face opposite sides.
  • the first surface Sa of the plate body 20 and the first surface Sa of the plate body 30 face each other, and the plate body 20
  • the second surface Sb and the second surface Sb of the plate body 30 face each other.
  • a plurality of recesses 200, 300 and protrusions 201, 301 are formed on each of the first surface Sa and the second surface Sb of the plate main body portions 20 and 30, respectively.
  • the concave lines 200 and 300 are represented by broken lines
  • the convex lines 201 and 301 are represented by straight lines between the broken lines.
  • Each of the plurality of recesses 200, 300 and ridges 201, 301 extends in a direction inclined with respect to a virtual line (not shown) extending in the Y-axis direction (second direction) orthogonal to the X-axis direction.
  • the plurality of recesses 200, 300 and ridges 201, 301 are alternately arranged in a direction orthogonal to the extending direction thereof.
  • the heat transfer plates 2 and 3 are press-molded metal plates.
  • the recesses 200 and 300 of the first surface Sa are in a front-to-back relationship with the protrusions 201 and 301 of the second surface Sb.
  • the ridges 201 and 301 of the first surface Sa have a front-back relationship with the dents 200 and 300 of the second surface Sb.
  • the plate main bodies 20 and 30 of the heat transfer plates 2 and 3 are formed in a rectangular shape when viewed from the X-axis direction.
  • Each of the plate main bodies 20 and 30 has through holes 202, 203, 204, 205, 302, 303, 304 and 305 at the four corners, respectively.
  • the plate main bodies 20 and 30 have first holes 202 and 302, second holes 203 and 303, third holes 204 and 304, and fourth holes 205 and 305 as through holes.
  • the first holes 202 and 302 are arranged at one end in the Z-axis direction (third direction) orthogonal to the X-axis direction and the Y-axis direction in the region on one end side in the Y-axis direction in the plate main bodies 20 and 30.
  • the second holes 203 and 303 are arranged at one end in the Z-axis direction in the region on the other end side in the Y-axis direction of the plate main bodies 20 and 30.
  • the third holes 204 and 304 are arranged at the other end of the plate body 20 and 30 on the other end side in the Y-axis direction in the Z-axis direction.
  • the fourth holes 205 and 305 are arranged at the other end of the plate main body portions 20 and 30 on the one end side in the Y-axis direction in the Z-axis direction.
  • the first holes 202, 302, the second holes 203, 303, the third holes 204, 304, and the fourth holes 205, 305 are round holes, respectively.
  • the hole diameters of the second holes 203, 303, the third holes 204, 304, and the fourth holes 205, 305 are the same.
  • the hole diameters of the first holes 202 and 302 are larger than the hole diameters of the second holes 203 and 303, the third holes 204 and 304, and the fourth holes 205 and 305.
  • the periphery of the first holes 202 and 302 and the periphery of the second holes 203 and 303 bulge toward the second surface Sb side. That is, the periphery of the first holes 202 and 302 and the periphery of the second holes 203 and 303 are recessed on the first surface Sa side.
  • the periphery of the third holes 204 and 304 and the periphery of the fourth holes 205 and 305 bulge toward the first surface Sa side. That is, the periphery of the third holes 204 and 304 and the periphery of the fourth holes 205 and 305 are recessed on the second surface Sb side.
  • the plurality of heat transfer plates 2 and 3 include two types of heat transfer plates 2 and 3.
  • the two types of heat transfer plates 2 and 3 have different inclination directions of the recesses 200 and 300 and the protrusions 201 and 301 of the plate main bodies 20 and 30, and the extending directions of the annular fitting portions 21 and 31.
  • Other configurations shape and size of contours of plate main bodies 20 and 30 seen from the X-axis direction, first holes 202, 302, second holes 203, 303, third seen from the X-axis direction).
  • the arrangement and size of the holes 204 and 304 and the fourth holes 205 and 305) are common.
  • the concave groove 200 and the convex groove 201 descend from the middle in the Z-axis direction toward both ends in the Z-axis direction. Tilt to. Further, the annular fitting portion 21 extends toward the second surface Sb side of the plate main body portion 20 (see FIGS. 3 and 4).
  • the recesses 300 and the protrusions 301 descend from both ends in the Z-axis direction toward the middle in the Z-axis direction. As it is inclined, the annular fitting portion 31 extends toward the first surface Sa side of the plate main body portion 30 (see FIGS. 5 and 6).
  • the plate heat exchanger 1 As a result, in the plate heat exchanger 1 according to the present embodiment, two types of heat transfer are performed so that the adjacent heat transfer plates 2 and 3 face each other on the first surface Sa and face each other on the second surface Sb.
  • the annular fitting portions 21 and 31 of the adjacent heat transfer plates 2 and 3 are fitted to each other.
  • the ridges 201 and 301 of the first surfaces Sa of the adjacent heat transfer plates 2 and 3 intersect with each other, and the ridges 201 and 301 of the second surfaces Sb of the adjacent heat transfer plates 2 and 3 intersect. They cross each other.
  • some of the flow path forming members 4 among the plurality of flow path forming members 4 have at least one through hole 42 penetrating in the X-axis direction.
  • each of the plurality of flow path forming members 4 (the contour seen from the X-axis direction and the contour seen from the direction orthogonal to the X-axis direction) is common. That is, the plurality of flow path forming members 4 have a common configuration other than the number and arrangement of through holes.
  • each of the plurality of flow path forming members 4 has a first surface (not numbered) in the X-axis direction and a second surface (not numbered) on the opposite side of the first surface. It has a plate-shaped main body 40 having a portion, and a fitting portion 41 connected to at least one of the first surface and the second surface of the main body 40.
  • the thickness T1 of the main body 40 in the X-axis direction corresponds to the distance between adjacent heat transfer plates 2 and 3 (see FIG. 9).
  • the outer peripheral 400 of the main body 40 of the present embodiment includes an arc portion 400a and a straight portion 400b connecting both ends of the arc portion 400a.
  • the radius r1 of the arc portion 400a is larger than the radius of the first holes 202 and 302.
  • the shortest straight line distance L1 from the center CP1 of the arc portion 400a to the straight line portion 400b is shorter than the radius of the first holes 202 and 302.
  • the first hole of the main body 40 is in a state where the center of the holes 202 and 302 and the center CP1 of the arc portion 400a of the main body 40 are aligned with each other.
  • the fitting portion 41 can be fitted into the first holes 202 and 302 of the heat transfer plates 2 and 3. More specifically, in the present embodiment, the outer circumference of the fitting portion 41 includes an arc portion 410a and a straight portion 410b connecting both ends of the arc portion 410a.
  • the center CP2 of the arc portion 410a of the fitting portion 41 coincides with the center CP1 of the arc portion 410a of the main body portion 40. That is, the main body portion 40 and the fitting portion 41 are concentric.
  • the radius r2 of the arc portion 410a of the fitting portion 41 is the same as the radius of the first holes 202 and 302 or slightly smaller than the radius of the first holes 202 and 302.
  • the shortest linear distance L2 from the center CP2 of the arc portion 410a to the straight portion 410b is shorter than the radius of the first holes 202 and 302.
  • the shortest linear distance L2 from the center CP2 of the arc portion 410a of the fitting portion 41 to the straight portion 410b is from the center CP1 of the arc portion 400a of the main body portion 40 to the straight portion 400b of the main body portion 40. It is the same as the shortest straight line distance L1. That is, the straight portion 400b of the main body portion 40 and the straight portion 410b of the fitting portion 41 are continuous in the X-axis direction.
  • the fitting portion 41 is connected only to the first surface of the main body portion 40.
  • the thickness T2 of the fitting portion 41 in the X-axis direction is the total thickness of the two metal plates (press-molded metal plates) constituting the heat transfer plates 2 and 3 (heat transfer overlapping in the X-axis direction).
  • the total thickness around the first holes 202 and 302 of the plates 2 and 3) is the same or substantially the same.
  • the plurality of flow path forming members 4 are connected in the X-axis direction so as to correspond to the arrangement of the first holes 202 and 302 of the heat transfer plates 2 and 3 stacked in the X-axis direction.
  • the flow path forming member group 4A (see FIG. 7) is formed. That is, the flow path forming member group 4A extends in the X-axis direction inside the plate heat exchanger 1 (specifically, at a position corresponding to the first holes 202 and 302 of the plurality of heat transfer plates 2 and 3). ing.
  • the flow path forming member group 4A is configured by arranging a plurality of flow path forming members 4 so as to be aligned in the X-axis direction inside the plate heat exchanger 1.
  • the end plate main body 50 has a through hole (not shown) corresponding to an inner hole of the first through hole 420 of the flow path forming member 4 arranged so as to correspond to the first holes 202 and 302.
  • one end plate 5 has four nozzles 52, 53, 54, 55 provided corresponding to each through hole of the end plate main body 50. These four nozzles 52, 53, 54, 55 have an inner hole and are connected to the end plate main body 50 in a state where the inner hole is communicated with the corresponding through hole.
  • the plurality of flow path forming members 4, that is, the first fluid supply path Ra1 composed of the flow path forming member group 4A is formed by the plurality of heat transfer plates 2 and 3 stacked in the X-axis direction.
  • One region (first region) S1 and the other region (second region) S2 in the X-axis direction based on the positions corresponding to the heat transfer plates 2 and 3 in the middle portion in the X-axis direction.
  • the first fluid A is branched (distributed) to each.
  • the first fluid A flowing through the first fluid supply path Ra1 is sequentially branched in the X-axis direction not only in the upstream system US but also in the downstream system DS and reaches the first flow path Ra. That is, the first fluid A flows into the first flow path Ra at different positions in the X-axis direction, but the distance from the branch portion US2 to reach the first flow path Ra is the same or substantially the same.
  • the first fluid supply path Ra1 for supplying the first fluid A to the first flow path Ra is composed of a plurality of flow path forming members 4, but the configuration is not limited to this.
  • the second fluid supply path Rb1 when the second fluid B is supplied to the second flow path Rb in a state where distribution unevenness is suppressed (approximately evenly), the second fluid supply path Rb1 also forms a plurality of flow paths. It may be composed of members.
  • the plurality of flow path forming members in this case are configured in the same manner as the flow path forming member 4 forming the first fluid supply path Ra1.
  • the first fluid A is branched (distributed) at least once in the X-axis direction, and then flows out from the plurality of open portions DS1 toward the first flow path Ra. Therefore, the circulation distance of the first fluid A is uniform or substantially uniform. Therefore, even in this configuration, the same actions and effects as those in the above embodiment are obtained.
  • the upstream reference member 4 has an even number of second through holes 421 (branch portion US2). Then, the flow path forming member 4 in the region (first region) S1 on one side in the X-axis direction of the upstream reference member 4 is half of the even number of second through holes 421 of the upstream reference member 4.
  • the fourth through hole 423 may be provided at a position corresponding to the second through hole 421 at a position not corresponding to the fourth through hole 423. That is, in the upstream system US, a plurality of pairs of branch flow paths US3 may be provided.
  • the length (tip position) of each pair of branch flow paths US3 in the X-axis direction may be different or the same.
  • the same applies to the most downstream branch portion DS2 and the most downstream branch flow path DS3 of the downstream system DS.
  • the outer peripheral edge portion of the flow path forming member 4 (main body portion 40) is sandwiched around the through holes (first holes 202, 302) of the adjacent heat transfer plates 2 and 3, but this configuration is used. Not limited.
  • the outer diameters of the plurality of flow path forming members 4 are smaller than the hole diameters of the through holes (first holes) 202 and 302 of the heat transfer plates 2 and 3, and the plurality of flow paths connected in the X-axis direction.
  • the forming member 4, that is, the flow path forming member group 4A may be inserted into the through holes (first holes) 202 and 302 of the plurality of heat transfer plates 2 and 3 connected in the X-axis direction.

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

Abstract

La présente invention aborde le problème de la fourniture d'un échangeur à plaques de telle sorte qu'il est possible de supprimer la distribution irrégulière d'un premier fluide vers une pluralité de premiers trajets d'écoulement. La présente invention comprend un groupe d'éléments de formation de trajet d'écoulement qui s'étendent dans une direction prédéterminée à des positions correspondant aux trous débouchants d'une pluralité de plaques d'échangeur. Le groupe d'éléments de formation de trajet d'écoulement est composé de plusieurs éléments de formation de trajet d'écoulement qui sont agencés en rangée dans la direction prédéterminée, et les trous débouchants d'au moins deux éléments de formation de trajet d'écoulement communiquent l'un avec l'autre pour former un premier trajet d'alimentation en fluide qui fournit le premier fluide aux premiers trajets d'écoulement. Le premier trajet d'alimentation en fluide comprend : une partie d'introduction dans laquelle le premier fluide est introduit depuis l'extérieur ; une première partie de ramification qui est disposée à une partie intermédiaire de la pluralité de plaques d'échangeur et qui sépare le premier fluide introduit dans la partie d'introduction en un côté, et l'autre côté dans la direction prédéterminée ; et une pluralité de parties d'ouverture qui communiquent avec un côté ou l'autre côté de la première partie de ramification et qui débouchent dans le premier trajet d'écoulement correspondant en une pluralité d'emplacements dans la direction prédéterminée.
PCT/JP2019/017200 2019-04-23 2019-04-23 Échangeur à plaques WO2020217308A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
PCT/JP2019/017200 WO2020217308A1 (fr) 2019-04-23 2019-04-23 Échangeur à plaques
EP19925924.3A EP3951309A4 (fr) 2019-04-23 2019-04-23 Échangeur à plaques
CN201980091426.3A CN113424010B (zh) 2019-04-23 2019-04-23 板式热交换器
JP2021515349A JP7300500B2 (ja) 2019-04-23 2019-04-23 プレート式熱交換器

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JP2017020694A (ja) * 2015-07-09 2017-01-26 株式会社日阪製作所 プレート式熱交換器
WO2018061185A1 (fr) * 2016-09-30 2018-04-05 三菱電機株式会社 Dispositif à cycle frigorifique

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CN102980328B (zh) * 2012-12-10 2015-04-22 丹佛斯（杭州）板式换热器有限公司 板式换热器
WO2014155839A1 (fr) * 2013-03-29 2014-10-02 株式会社日阪製作所 Échangeur de chaleur du type à plaques
WO2017122428A1 (fr) * 2016-01-13 2017-07-20 株式会社日阪製作所 Échangeur de chaleur à plaques
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JP2017020694A (ja) * 2015-07-09 2017-01-26 株式会社日阪製作所 プレート式熱交換器
WO2018061185A1 (fr) * 2016-09-30 2018-04-05 三菱電機株式会社 Dispositif à cycle frigorifique

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JP7300500B2 (ja) 2023-06-29
CN113424010A (zh) 2021-09-21
EP3951309A4 (fr) 2022-11-09
JPWO2020217308A1 (fr) 2020-10-29
EP3951309A1 (fr) 2022-02-09
CN113424010B (zh) 2023-07-18

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