WO2015132920A1 - 熱交換器および熱交換器の製造方法 - Google Patents
熱交換器および熱交換器の製造方法 Download PDFInfo
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- WO2015132920A1 WO2015132920A1 PCT/JP2014/055693 JP2014055693W WO2015132920A1 WO 2015132920 A1 WO2015132920 A1 WO 2015132920A1 JP 2014055693 W JP2014055693 W JP 2014055693W WO 2015132920 A1 WO2015132920 A1 WO 2015132920A1
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- flow path
- spiral
- heat exchanger
- channel
- flow
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Classifications
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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
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/02—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being helically coiled
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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
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/02—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being helically coiled
- F28D7/024—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being helically coiled the conduits of only one medium being helically coiled tubes, the coils having a cylindrical configuration
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/26—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass heat exchangers or the like
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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
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/02—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being helically coiled
- F28D7/026—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being helically coiled the conduits of only one medium being helically coiled and formed by bent members, e.g. plates, the coils having a cylindrical configuration
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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
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/04—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being spirally coiled
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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
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/08—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being otherwise bent, e.g. in a serpentine or zig-zag
Definitions
- the present invention relates to a heat exchanger and a method for manufacturing the heat exchanger.
- a first spiral protrusion is bent in the inner tube, a second spiral protrusion that is aligned with the first spiral protrusion is formed in the outer tube, and the inner tube and the outer tube are connected to each other.
- the flow path formed between the inner pipe and the outer pipe is narrow, and the inside of the inner pipe is formed wide. For this reason, in the flow path formed between the inner tube and the outer tube, there is a problem that inorganic substances are easily clogged. In addition, since the flow velocity is low inside the inner tube, there is a problem that the inorganic substance is difficult to flow and precipitates or accumulates easily. That is, the flow path between the inner pipe and the outer pipe and the flow path in the inner pipe may be blocked in any case.
- the present invention has been made in view of such circumstances, and an object of the present invention is to provide a heat exchanger and a method of manufacturing the heat exchanger that are less likely to clog solids in the flow path and are less likely to settle and accumulate. It is in.
- the present invention is configured so that a plurality of planar channel bodies in which two channels are curved or bent so as to be adjacent to each other in the same plane overlap in a crossing direction intersecting the plane.
- the two planar flow channel bodies adjacent to each other in the intersecting direction among the plurality of the planar flow channel bodies arranged and stacked at both ends of each of the flow channels included in one of the planar flow path bodies A flow path unit in which each one of the two flow path inlets and outlets forming the flow path is connected to one of the two flow path inlets and outlets forming both ends of each of the flow paths of the other planar flow path body, and the flow And a high-pressure pipe covering the outside of the path unit.
- the flow path unit that is inserted and covered along the cross direction in the high-pressure pipe has a plurality of planes including two flow paths that are adjacent to each other in a plane that intersects the cross direction. Are disposed so as to overlap each other in the crossing direction, and the flow paths of adjacent planar flow path bodies are connected to form two flow paths as a whole.
- the cross-sectional area of the flow path can be made smaller than when a heat exchanger is formed with a tube. For this reason, since a high flow rate can be ensured in each flow path, it is possible to prevent solids from being precipitated or deposited in the flow path.
- the two flow paths are arranged adjacent to each other, it is possible to efficiently exchange heat by circulating the high-temperature fluid in one flow path and flowing the low-temperature fluid in the other flow path.
- the fluid unit including two flow paths is provided in the high-pressure pipe, it is more suitable as a heat exchanger that performs heat exchange using a high-pressure fluid, for example.
- the planar flow path body is curved in a spiral shape in which the two flow paths spread from the central side to the outer peripheral side and have a half-circumferential phase different from each other and spiral in the same direction.
- the two flow paths are alternately arranged in the diameter direction of the spiral formed by the two flow paths, and the flow path unit includes the spiral flow path body and the plane.
- the two spiral flow channel bodies adjacent to each other in the crossing direction are connected to each other on the central side or on the outer peripheral side to form two continuous channels. It is desirable that
- the two flow paths of the planar flow path body are curved in a spiral shape that is swirled in the same direction, so that the two flow paths are formed in the diameter direction of the spiral. Since they are arranged alternately, it is possible to secure a wider boundary portion between the two flow paths, that is, a heat transfer surface. For this reason, it is possible to exchange heat more efficiently.
- the flow path unit is formed by connecting a plurality of spiral flow path bodies in a crossing direction to form two flow paths, the two flow paths are high-pressure pipes that are almost the entire length of the heat exchanger. Therefore, the heat exchange can be performed more efficiently.
- the flow path units are overlapped so that the winding directions of the adjacent spiral flow path bodies are the same. According to such a heat exchanger, it is possible to arrange two flow paths so that the flow path through which the high temperature fluid flows and the flow path through which the low temperature fluid flows do not contact each other in the crossing direction.
- the flow path units may be overlapped so that the winding directions of the adjacent spiral flow path bodies are opposite to each other. According to such a heat exchanger, a location where the flow path through which the high-temperature fluid flows and the flow path through which the low-temperature fluid flows is generated in the intersecting direction, so that the heat transfer area can be further increased. .
- a partition material forming step of forming a plurality of partition walls having openings in one end of the groove formed on the both sides of the metal plate material, and facing the partition material A plurality of metal plates each having a flat surface that covers the groove of the partition wall material and has an opening at an end opposite to the end provided with the opening of the formed flow channel.
- a plate-shaped material forming step for forming a plate-shaped material, the partition wall material and the plate-shaped material are alternately arranged, and the flow paths provided on one side of the partition wall material and the other side of the partition wall material are provided.
- the two flow paths formed by the partition wall material forming the partition walls of the connected grooves and the two plate-like materials adjacent in the crossing direction of the partition wall material are the plate Since the partition material and the plate-like material are alternately arranged while sharing the shape material, there is only one plate separating the two between the two flow paths. For this reason, it is possible to raise heat conduction efficiency rather than the case where two pipes are made to adjoin.
- the partition wall material and the plate-like material are alternately arranged, and the flow path provided on one side of the partition wall material and the flow path provided on the other side of the partition wall material are connected to each other.
- the flow path unit is easily formed by adjusting the position of the opening provided in the unit and fixed integrally. Further, the formed flow path unit is easily inserted into the high-pressure pipe and integrated. It is possible to form a heat exchanger.
- the partition wall material and the plate-shaped material are formed by drawing, and the partition wall material and the plate-shaped material adjacent to each other are bent in a direction intersecting the plane. It is desirable that the partition wall material and the plate-like material are overlapped and joined at a portion bent in a direction intersecting the plane. According to such a method of manufacturing a heat exchanger, the partition wall material and the plate-like material can be easily formed by drawing, and the partition wall material and the plate-like material are bent in a direction intersecting the plane. Since they are overlapped and joined at the site, it is possible to easily form two flow paths without using a tube by sealing the outer peripheral side.
- the heat exchanger 1 of the present embodiment includes a flow path unit 2 in which two continuous flow paths 21 and 22 are bent so as to be adjacent to each other, and a flow path unit 2 has 2 And a cover 3 that covers the flow path unit 2 by projecting end openings 21 a and 22 a that are ends of the continuous flow paths 21 and 22 to the outside.
- the cover 3 is indicated by a virtual line (one-dot chain line).
- the flow path unit 2 has a plurality of spiral flow path bodies 25 as planar flow path bodies in which the two spiral flow paths 23 and 24 are curved in a spiral shape adjacent to each other in the same plane. ing.
- Each spiral channel body 25 is curved in a spiral shape in which the two spiral channels 23, 24 are spread from the center side to the outer periphery side, and have a half-circumference in phase with each other and spiral in the same direction.
- the two spiral channels 23 and 24 are alternately arranged in the diameter direction of the spiral formed by the two spiral channels 23 and 24.
- the channel inlets / outlets 23 a, 23 b, 24 a, 24 b serving as both ends of the spiral channels 23, 24 are provided at the center and the outer periphery of the spiral channel body 25, respectively.
- the spiral flow paths 23 and 24 included in each spiral flow path body 25 correspond to flow paths, and the two flow paths in which the spiral flow paths 23 and 24 included in the plurality of spiral flow path bodies 25 are connected. 21 and 22 correspond to continuous flow paths.
- each spiral flow path 23, 24 is shown as a single tube, but the spiral flow paths 23, 24 may be a partitioned space, for example, two spirals
- the flow paths 23 and 24 may be partitioned by a single partition material.
- the plurality of spiral flow path bodies 25 are arranged so as to overlap each other in a direction intersecting with a plane formed by arranging the two spiral flow paths 23 and 24 (hereinafter referred to as a cross direction). At this time, it arrange
- the surface of the plurality of spiral flow channel bodies 25 that are overlapped will be described with the surface facing the lower left side in FIG. 2 as the front surface and the opposite surface as the back surface.
- the flow path unit 2 in which a plurality of spiral flow path bodies 25 are stacked has a central flow path inlet / outlet port 23 a, 24 a that is an end on the central side of the two spiral flow paths 23, 24.
- the flow passages 23 and 24 are provided with center-side flow passages 23a and 24a serving as end portions on the central side on the back side, and the flow passage entrances 23b and 24b on the outer peripheral side serving as end portions on the outer peripheral side.
- the second spiral channel bodies 252 provided on the surface side are alternately arranged.
- two spiral flow channel bodies 251 and 252 adjacent to each other in the intersecting direction are connected to the flow path entrances 23a and 24a on the central side or the flow path entrances 23b and 24b on the outer peripheral side.
- the flow passages 23a and 24a on the center side and the flow passages 23b and 24b on the outer peripheral side are airtightly joined, and the two spiral flow passage bodies 25 as a whole form two continuous flow passages 21 and 22. ing.
- the overlapped spiral channel body 25 is opened to the side where the spiral channel body 25 is not provided adjacently among the channel inlets / outlets 23a, 23b, 24a, 24b of the spiral channel body 25 arranged at both ends.
- a communication pipe 26 connected to the outside is provided at each of the flow passage openings 23a, 23b, 24a, 24b.
- the communication pipes 26 are respectively provided at the flow path entrances 23 a and 24 a on the center side of the spiral flow path bodies 251 and 252 disposed at both ends of the flow path unit 2.
- the cover 3 includes a high-pressure pipe 31 in which the fluid unit 2 is accommodated, and a lid member 32 provided so as to close both ends of the high-pressure pipe 31.
- the high-pressure pipe 31 has approximately the same length as the length in the intersecting direction of the portion where the spiral flow path body 25 is overlapped in the flow path unit 2.
- the lid member 32 has an opening through which the communication pipe 26 passes, has an outer diameter substantially the same as the diameter of the high-pressure pipe 31, and the outer peripheral edge of the lid member 32 is welded to the end of the high-pressure pipe 31.
- the heat exchanger 1 configured as described above is manufactured, for example, as shown in FIG.
- a heat exchanger 1 having four spiral channel bodies 25 will be described.
- the flow path unit 2 of the present embodiment is a flat surface that covers the groove forming plate member 10 as a partition member having spiral grooves 11 and 12 and the grooves 11 and 12 formed in the groove forming plate member 10.
- the flat plate members 13 provided with the portions 13 a are alternately stacked, and the end plate members 14 covering the grooves 11 and 12 of the groove forming plate member 10 are overlapped and integrated at both ends of the flow path unit 2. That is, the spiral flow path body 25 is formed by joining two flat plate members 13 or the flat plate member 13 and the end plate member 14 on both sides of one groove forming plate member 10.
- the adjacent spiral flow path body 25 is comprised so that the plane board
- the two flat plate members 13 bonded to both sides of the single groove forming plate member 10 or the flat plate member 13 and the end plate member 14 correspond to two plate members.
- the manufacturing method of the heat exchanger 1 first forms the groove forming plate member 10, the flat plate member 13, and the end plate member 14 by drawing the metal plate member having heat resistance and heat transfer. At this time, the flat plate member 13 and the end plate member 14 do not necessarily have to have heat conductivity. In addition, openings 10a, 13b, and 14b are previously formed in the groove forming plate member 10, the flat plate member 13, and the end plate member 14 at portions that become the flow passage openings 23a, 23b, 24a, and 24b. In FIG.
- the openings 10 a, 13 b, and 14 b and the flow passage openings 23 a, 23 b, 24 a, and 24 b are shown by black rectangles, and the cross sections of the groove forming plate member 10, the flat plate member 13, and the end plate member 14 are shown. Hatching is omitted.
- the groove-forming plate material 10 is formed by curving one spiral groove 11 and 12 on the front and back surfaces of the plate material so as to vortex in the same direction while spreading from the center side to the outer periphery side while differing from each other by half a phase. Form. At this time, the outer peripheral portion is bent back along the intersecting direction in which the plurality of spiral flow path bodies 25 are overlapped to form the bent portion 10b.
- the flat plate member 13 is formed by bending the outer peripheral end of the flat portion 13a covering the grooves 11 and 12 of the groove forming plate member 10 to approximately 90 degrees and overlapping the groove forming plate member 10 with the outer periphery of the adjacent groove forming plate member 10.
- a bent portion 13c is formed so as to overlap the bent bent portion 10b.
- the end plate 14 also has a flat portion 14a that covers the grooves 11 and 12 of the groove forming plate 10 disposed on both ends of the flow path unit 2, and the outer peripheral end of the flat portion 14a is bent at approximately 90 degrees. And the bent portion 10b overlapped with the surface intersecting the flat portion 14a on the outer periphery of the groove forming plate member 10 and the outer periphery of the groove forming plate member 10 when overlapped with the groove forming plate member 10 on both ends of the flow path unit 2. 14c is formed.
- the adjacent groove forming plate material 10 and the flat plate material 13 or the end plate material are formed while alternately stacking the formed groove forming plate material 10 and the flat plate material 13 and overlapping the end plate material 14 at both ends.
- 14 is welded over the entire circumference, and the communication pipe 26 is welded to the flow path inlets 23a, 24a on the center side of the end plate 14 to form the flow path unit 2.
- the flow passage ports 23a, 23b, 24a24b of adjacent members face each other and the flow passage unit 2 is formed. It arrange
- the formed flow path unit 2 is inserted so as to contact the inner peripheral surface of the high-pressure pipe 31.
- the planar portions 14 a of the end plate members 14 at both ends of the flow path unit 2 are substantially aligned with both edges of the high-pressure pipe 31, and the communication pipe 26 protrudes from the edges of the high-pressure pipe 31.
- the lid member 32 provided with the through hole 32a of the communication pipe 26 is disposed at the end of the high-pressure pipe 31, and the edge of the high-pressure pipe 31 and the outer periphery of the lid member 32 are welded over the entire circumference.
- the heat exchanger 1 having two continuous flow paths 21 and 2 is completed.
- a low-temperature gasification raw material is circulated in a predetermined direction in one continuous flow path 21 and flows out from a gasification reactor included in the hydrous biomass supercritical water gasification device.
- the high-temperature treated water is circulated in the opposite direction to the gasification raw material in the other continuous flow path 22. That is, in the flow path unit 2, the gasification raw material and the treated water flow through the two continuous flow paths 21 and 22 in opposite directions.
- heat is generated between the two continuous flow paths 21 and 22 by using the groove forming plate 10 that partitions the two continuous flow paths 21 and 22 as a heat transfer surface. Exchange is performed.
- the low temperature gasification raw material is circulated through one continuous flow path 21 and the high temperature treated water is circulated through the other continuous flow path 22, in the process where the gasification raw material is heated,
- the gasification raw material is agitated by the secondary flow in the flow path bent in a shape, and the activated carbon and biomass, which are gasification catalysts suspended in the gasification raw material, are mixed and homogenized.
- the contact probability between the catalyst and biomass is improved, and the catalytic effect is improved.
- the secondary flow is a flow generated in the spiral tube shown in FIG.
- the flow path unit 2 that is inserted into the high-pressure pipe 31 along the cross direction and covered is two spiral flow paths 23 that are adjacent in a plane that intersects the cross direction. , 24 are arranged so as to overlap each other in the crossing direction, and the two spiral flow paths 23 and 24 of the adjacent spiral flow path bodies 25 are connected to form two continuous flow paths as a whole.
- the cross-sectional area of the flow path can be made smaller than that in the case where a heat exchanger is formed by providing a double pipe in the high-pressure pipe 31, for example. For this reason, since a fast flow rate can be ensured in each of the continuous flow paths 21 and 22, it is possible to prevent solids from being precipitated or deposited in the continuous flow paths 21 and 22.
- the two continuous flow paths 21 and 22 are arranged adjacent to each other, the high temperature fluid is circulated through one of the continuous flow paths 21 and 22, and the low temperature fluid is transferred to the other flow path 21 and 22. It is possible to exchange heat efficiently by circulating the gas.
- the fluid unit 2 including the two continuous flow paths 21 and 22 is provided in the high-pressure pipe 31, for example, a system including a hydrous biomass supercritical water gasifier that performs heat exchange using a high-pressure fluid. It is more suitable as the heat exchanger 1.
- the two spiral channels 23 and 24 included in the spiral channel body 25 are curved in a spiral shape in which the spirals are wound in the same direction, so that the two spiral channels 23 and 24 are formed in the spiral direction. Since they are arranged alternately, it is possible to secure a wider boundary portion between the two spiral flow paths 23, 24, that is, a heat transfer surface. For this reason, it is possible to exchange heat more efficiently.
- the flow path unit 2 since the flow path unit 2 has two continuous flow paths 21 and 22 formed by connecting a plurality of spiral flow path bodies 25 in the crossing direction, the two continuous flow paths 21 and 22 are heated. Since it becomes sufficiently longer than the length of the high-pressure pipe 31 that is almost the entire length of the exchanger 1, it is possible to exchange heat more efficiently.
- the two continuous flow paths 21 and 22 can be arranged so that the continuous flow path 21 through which the high-temperature treated water flows and the continuous flow path 22 through which the low-temperature gasification raw material flows do not contact each other in the crossing direction. It is.
- plate material 10 which makes the partition of the connected groove
- the groove forming plate member 10 and the flat plate member 13 are alternately arranged. Between the two continuous flow paths 21 and 22, only one of the groove-forming plate members 10 is used to partition the two. For this reason, it is possible to raise heat conduction efficiency rather than the case where two pipes are made to adjoin.
- the groove forming plate members 10 and the flat plate members 13 are alternately arranged so that the grooves 11 provided on one side of the groove forming plate member 10 and the grooves 12 provided on the other side of the groove forming plate member 10 are connected.
- the flow channel unit 2 can be easily formed, and the formed flow channel unit 2 It is possible to easily form the heat exchanger 1 by inserting into the high-pressure pipe 31 and integrating them.
- the groove forming plate member 10, the flat plate member 13 and the end plate member 14 can be easily formed by drawing, and the groove forming plate member 10, the flat plate member 13 and the end plate member 14 arranged alternately in the intersecting direction.
- the bent portions 10b, 13c, 14c and the outer periphery of the groove forming plate member 10 are overlapped and joined on the plane intersecting the plane portions 13a, 14a.
- the continuous flow paths 21 and 22 can be easily formed.
- the flow path unit 2 is formed by stacking a plurality of spiral flow path bodies 25 so that the winding direction of the spiral flow path body 25 is the same direction.
- the flow path units may be formed by arranging the adjacent spiral flow path bodies 25 so that the winding directions are reversed. According to such a heat exchanger, the flow path through which the high-temperature treated water circulates and the flow path through which the low-temperature gasification raw material circulates also in the cross direction, and the contact area is widened, so the heat transfer area is further increased Is possible.
- the planar channel body is not limited to a spiral shape as long as two channels are provided curved and bent adjacent to each other in a plane.
- the heat exchanger 1 is a high-temperature and high-pressure fluid heat exchanger used in a hydrous biomass supercritical water gasifier, but is not limited thereto.
- 1 heat exchanger, 2 flow path unit, 3 cover 10 groove forming plate material, 10a opening, 10b bent portion, 11 groove, 12 groove, 13 flat plate material, 13a flat portion, 13b opening, 13c bent part, 14 end plate material, 14a plane part, 14b opening, 14c bent part, 21 continuous flow path, 21a end opening, 22 continuous flow path, 23 flow path, 23a channel inlet / outlet, 23b channel inlet / outlet, 24a channel inlet / outlet, 24b channel inlet / outlet, 25 spiral channel body, 26 communication pipe, 31 high pressure pipe, 32 Lid material, 32a Through-hole, 251 Swirl channel body, 252 Swirl channel body
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Abstract
Description
本発明は、このような事情に鑑みてなされたものであり、その目的は、流路に固形物が詰まり難く、また沈殿、堆積もし難い熱交換器および熱交換器の製造方法を提供することにある。
また、流路ユニットは、渦巻き流路体が交差方向に複数重ねられて繋がって2本の流路をなしているので、2本の流路は、熱交換器のほぼ全長となる高圧配管の長さより十分に長くなるこのため、更に効率良く熱交換することが可能である。
このような熱交換器によれば、高温流体が流通する流路と低温流体が流通する流路とが交差方向において接触しないように2本の流路を配置することが可能である。
このような熱交換器によれば、高温流体が流通する流路と低温流体が流通する流路とが交差方向において接触する箇所が発生するので、更に伝熱面積を広くすることが可能である。
を有することを特徴とする熱交換器の製造方法である。
このような熱交換器の製造方法によれば、隔壁材および板状材は絞り加工により容易に形成することが可能であり、隔壁材と板状材とが平面と交差する方向に屈曲された部位にて重ね合わせて接合されているので、外周側が密閉されることにより、管を用いることなく2本の流路を容易に形成することが可能である。
本実施形態の熱交換器1は、図1に示すように、2本の連続流路21、22を互いに隣り合うように屈曲させて配置した流路ユニット2と、流路ユニット2が有する2本の連続流路21、22の端となる端部開口21a、22aを外部に突出させて流路ユニット2を覆うカバー3と、を有している。図1においては、流路ユニット2を示すために、カバー3を仮想線(一点鎖線)にて示している。
本実施形態の流路ユニット2は、図3に示すように渦巻き状の溝11、12を有する隔壁材としての溝形成板材10と、溝形成板材10に形成された溝11、12を覆う平面部13aを備えた平面板材13と、を交互に重ねると共に、流路ユニット2の両端にて溝形成板材10の溝11、12を覆う端部板材14を重ねて一体化して形成されている。すなわち、渦巻き流路体25は、1枚の溝形成板材10の両側に2枚の平面板材13、または、平面板材13と端部板材14とが接合されて形成されている。そして、隣接する渦巻き流路体25は、各々の渦巻き流路体25が有する溝形成板材10の間に配置される平面板材13を共有するように構成されている。ここで、1枚の溝形成板材10の両側に接合される2枚の平面板材13、または、平面板材13と端部板材14とが2枚の板状材に相当する。
10b 屈曲部、11 溝、12 溝、13 平面板材、13a 平面部、
13b 開口、13c 屈曲部、14 端部板材、14a 平面部、14b 開口、
14c 屈曲部、21 連続流路、21a 端部開口、22 連続流路、23 流路、
23a 流路出入口、23b 流路出入口、24a 流路出入口、
24b 流路出入口、25 渦巻き流路体、26 連通管、31 高圧配管、
32 蓋材、32a 貫通孔、251 渦巻き流路体、252 渦巻き流路体
Claims (6)
- 2本の流路を同一平面内にて隣り合うように湾曲または屈曲させて配置した平面状流路体が前記平面と交差する交差方向に複数重なるように配置され、重ねた複数の前記平面状流路体のうちの前記交差方向に隣接する2つの前記平面状流路体における、一方の前記平面状流路体が有する各々の前記流路の両端をなす2つの流路出入口の各一方と、他方の前記平面状流路体が有する各々の前記流路の両端をなす2つの流路出入口の各一方とが繋がった流路ユニットと、
前記流路ユニットの外側を覆う高圧配管と、を有することを特徴とする熱交換器。 - 前記平面状流路体は、前記2本流路が、中央側から外周側に広がりつつ互いに半周分位相を異ならせて同一方向に渦を巻く渦巻き状に湾曲することにより、前記2本の流路がなす渦巻きの直径方向において当該2本の流路が交互に配置された渦巻き流路体であり、
前記流路ユニットは、前記渦巻き流路体が、前記平面と交差する交差方向に複数重ねて配置され、前記交差方向に隣接する2つの渦巻き流路体の中央側の流路出入口同士または外周側の流路出入口同士が繋がって2本の連続流路をなしていることを特徴とする請求項1に記載の熱交換器。 - 前記流路ユニットは、隣接する前記渦巻き流路体の巻き方向が互いに同一になるように重ねられていることを特徴とする請求項2に記載の熱交換器。
- 前記流路ユニットは、隣接する前記渦巻き流路体の巻き方向が互いに逆になるように重ねられていることを特徴とする請求項2に記載の熱交換器。
- 金属製の板材の両面にそれぞれ形成される繋がった溝の隔壁をなし、前記溝の一方の端部に開口を有する複数の隔壁材を形成する隔壁材形成工程と、
前記隔壁材に対向する平面を有し、前記隔壁材の溝を覆って流路を形成するとともに形成された流路の前記開口が設けられた端部と反対側の端部に開口を備えた金属製の複数の板状材を形成する板状材形成工程と、
前記隔壁材と前記板状材とを交互に配置するとともに前記隔壁材の一方側に設けられた流路同士および前記隔壁材の他方側に設けられた流路同士が繋がるように前記隔壁材および前記板状材に設けられた前記開口の位置を調整して一体に固定することにより流路ユニットを形成する流路ユニット形成工程と、
前記流路ユニットを前記交差方向に沿って挿入し当該流路ユニットの外側を高圧配管にて覆い一体化する一体化工程と、
を有することを特徴とする熱交換器の製造方法。 - 前記隔壁材および前記板状材は絞り加工により形成され、
互いに隣り合う前記隔壁材と前記板状材の外周部は前記平面と交差する方向に屈曲されており、
前記隔壁材と前記板状材とが前記平面と交差する方向に屈曲された部位にて重ね合わせて接合することを特徴とする請求項6に記載の熱交換器の製造方法。
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SG11201607329YA SG11201607329YA (en) | 2014-03-05 | 2014-03-05 | Heat exchanger and method for manufacturing heat exchanger |
US15/123,233 US20170067691A1 (en) | 2014-03-05 | 2014-03-05 | Heat exchanger and method to manufacture heat exchanger |
MYPI2016703202A MY179381A (en) | 2014-03-05 | 2014-03-05 | Heat exchanger and method to manufacture heat exchanger |
JP2015514693A JP5873602B1 (ja) | 2014-03-05 | 2014-03-05 | 熱交換器および熱交換器の製造方法 |
EP14884770.0A EP3115727A4 (en) | 2014-03-05 | 2014-03-05 | Heat exchanger and method for manufacturing heat exchanger |
PCT/JP2014/055693 WO2015132920A1 (ja) | 2014-03-05 | 2014-03-05 | 熱交換器および熱交換器の製造方法 |
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CN110285697A (zh) * | 2019-07-23 | 2019-09-27 | 浙江诚信医化设备有限公司 | 螺旋板式换热器 |
JP2020054201A (ja) * | 2018-09-28 | 2020-04-02 | 日本電産トーソク株式会社 | モータユニット |
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EP3141815B1 (en) * | 2015-09-08 | 2019-03-13 | Black & Decker, Inc. | Boiler and method of manufacture |
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US11808527B2 (en) | 2021-03-05 | 2023-11-07 | Copeland Lp | Plastic film heat exchanger for low pressure and corrosive fluids |
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EP3115727A4 (en) | 2017-05-03 |
US20170067691A1 (en) | 2017-03-09 |
EP3115727A1 (en) | 2017-01-11 |
JP5873602B1 (ja) | 2016-03-01 |
SG11201607329YA (en) | 2016-10-28 |
JPWO2015132920A1 (ja) | 2017-03-30 |
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