WO2007007763A1 - Échangeur de chaleur et procédé pour le fabriquer - Google Patents

Échangeur de chaleur et procédé pour le fabriquer Download PDF

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Publication number
WO2007007763A1
WO2007007763A1 PCT/JP2006/313788 JP2006313788W WO2007007763A1 WO 2007007763 A1 WO2007007763 A1 WO 2007007763A1 JP 2006313788 W JP2006313788 W JP 2006313788W WO 2007007763 A1 WO2007007763 A1 WO 2007007763A1
Authority
WO
WIPO (PCT)
Prior art keywords
heating tank
metal
fluid
compartment
metal member
Prior art date
Application number
PCT/JP2006/313788
Other languages
English (en)
Japanese (ja)
Inventor
Masami Nomura
Original Assignee
Nomura, Takashi
Nomura, Masaaki
Nakagawa, Kazuo
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 Nomura, Takashi, Nomura, Masaaki, Nakagawa, Kazuo filed Critical Nomura, Takashi
Priority to KR1020087003260A priority Critical patent/KR101274599B1/ko
Priority to JP2007524663A priority patent/JP4842943B2/ja
Publication of WO2007007763A1 publication Critical patent/WO2007007763A1/fr

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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/10—Induction heating apparatus, other than furnaces, for specific applications
    • H05B6/105—Induction heating apparatus, other than furnaces, for specific applications using a susceptor
    • H05B6/108—Induction heating apparatus, other than furnaces, for specific applications using a susceptor for heating a fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B1/00—Methods of steam generation characterised by form of heating method
    • F22B1/28—Methods of steam generation characterised by form of heating method in boilers heated electrically
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22G—SUPERHEATING OF STEAM
    • F22G3/00—Steam superheaters characterised by constructional features; Details of component parts thereof
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/10—Induction heating apparatus, other than furnaces, for specific applications

Definitions

  • the present invention relates to a heat exchanger that heats a fluid by passing through a heating tank.
  • thermoelectric heating type heat exchanger for example, a device disclosed in Patent Document 1 can be cited.
  • the heating element is heated by filling the tank with a heating element having magnetic strength and applying a high-frequency voltage from the outside of the tank.
  • the fluid is heated by passing the fluid through the tank.
  • Patent Document 1 has a problem that the heating efficiency is poor. Specifically, for example, when one 10 mm iron plate is heated, the heat is transmitted uniformly. When two 5 mm iron plates are stacked and one iron plate is heated, the other iron plate is heated by radiant heat. Will be. In other words, heat is transferred only indirectly to the other iron plate. Therefore, for example, when a heating element is filled in the tank, since the tank and the heating element are provided separately, only the heating element is heated, and the tank has an outer wall that holds a solution or vapor. The heat efficiency is inferior because it is unreasonable.
  • Patent Document 2 In order to solve such problems, the inventors of the present application have proposed a technique disclosed in Patent Document 2.
  • Patent Document 2 JP 2000-65312 A (published March 3, 2000)
  • Patent Document 2 Japanese Patent Application Laid-Open No. 2004-251605 (published on September 9, 2004)
  • the tank and the magnetic member existing in the tank are integrated.
  • the magnetic member and the tank are integrated together by, for example, welding.
  • a magnetic member is disposed in the tank and the tank and the magnetic member in the tank are welded, a high level of technology is required.
  • the present invention has been made in view of the above problems, and an object thereof is to realize a method of manufacturing a heat exchanger that can be manufactured more easily and can sufficiently heat a fluid.
  • a method for producing a heat exchanger according to the present invention includes a heating tank having a compartment for retaining a fluid therein, and external heating and heating of the heating tank.
  • a method of manufacturing a heat exchanger that heats a fluid guided to the compartment by using a plurality of metal members that are plate-shaped and have through holes for allowing fluid to pass therethrough.
  • the heat exchanger includes a heating tank having a compartment for retaining fluid therein, and the compartment is heated by heating from the outside of the heating tank.
  • a heat exchanger that heats the fluid led to A plurality of metal members having through holes are used, and among the metal members, the metal member whose inner side portion is thinner than the peripheral portion is arranged on at least one of the adjacent metal members.
  • the peripheral portion of the adjacent metal member is welded to each other so that the wall of the compartment and the outer wall of the heating tank are configured by the adjacent metal member.
  • a method for producing a heat exchanger according to the present invention includes a heating tank having a compartment for retaining a fluid therein, and is led from the outside of the heating tank to the compartment.
  • a method of manufacturing a heat exchanger for heating a fluid wherein a plurality of metal members having a plate shape and having through holes for allowing fluid to pass are used, and the inner side of the metal member is more inward than the peripheral portion.
  • the metal members having thinner side portions are disposed on at least one of the adjacent metal members, and the plurality of the metal plates having openings are disposed between the adjacent metal members.
  • the partition wall and the outer wall of the heating tank are integrated with each other by welding the peripheral portions of the metal plate and the metal plate adjacent to each other.
  • To form a heated tank Forming step may be a method comprising the.
  • a heat exchanger includes a heating tank having a compartment for retaining a fluid therein, and heats the fluid guided to the compartment by heating with an external force of the heating tank.
  • a plurality of metal members having a plate shape and having through holes for allowing fluid to pass therethrough are used. Of the metal members, the inner side portion of the metal member is more than the peripheral portion.
  • a thin metal member is disposed on at least one of the adjacent metal members, and a metal plate having an opening is disposed between the adjacent metal members, and the adjacent metal member and the above
  • a metal member whose inner side portion is not thinner than the peripheral edge portion may be used.
  • any configuration may be employed as long as a metal plate having an opening is disposed (overlaid) between a plurality of metal members having through holes for allowing fluid to pass therethrough.
  • the outer wall of the heating tank forms a heating tank constituted by the metal member (or the metal member and the metal plate).
  • the peripheral portions of two adjacent metal members or the peripheral portions of the metal plate and the metal member adjacent to the metal plate
  • the peripheral portions of the metal member or (Metal plate and metal member)
  • the outer wall of the tank can be formed, and the side wall of the metal member can form the wall of the compartment inside the tank (the outer wall of the heating tank and the wall of the compartment are the same part) Can be configured).
  • the heat supplied to the heating tank is efficiently transmitted from the outer wall of the heating tank to the wall constituting the compartment. Therefore, with the above configuration, even when the heating tank is heated from the outside, heat is efficiently transferred to the inside of the heating tank, so that the inside of the heating tank, that is, the compartment is configured. The wall will be heated sufficiently. As a result, the fluid guided to the compartment can be heated sufficiently compared to the conventional case.
  • the inner part of the metal member forming the wall of the compartment is thinner than the peripheral part, the heat supplied from the outside is in the direction of the center of the heating tank (metal It is more efficiently transmitted to the place where the thickness of the member is thin.
  • a high-speed rotating vortex can be generated in the compartment.
  • the forced convection heat transfer and turbulent heat transfer by the vortex can promote heat exchange in the compartment and increase the heating efficiency.
  • the fluid circulates in the compartment and repeats contact with the high temperature wall surface. As a result, an effect of increasing the effective heat transfer area can be obtained, and the heating efficiency can be further increased.
  • the fluid is further accelerated from the upstream compartment to the downstream compartment.
  • the heat transfer characteristics improve as the fluid velocity increases, so that the heat transfer characteristics synergistically improve as the fluid moves to the downstream compartment, and the heating efficiency as a whole is greatly improved.
  • the fluid is accelerated as it moves from the upstream compartment to the downstream compartment, so that the flow rate of the fluid passing through the heat exchanger can be increased.
  • heat exchange can be produced by welding the peripheral portions of the plate-shaped metal member (or the metal member and the metal plate), so that the plate-shaped member is installed in the conventional tank.
  • the heat exchanger it is possible to manufacture the heat exchanger more easily, and there is a possibility that the tank and the plate-like member may partially occur.
  • the existing interface can be completely eliminated.
  • the metal member is perforated before the heating tank is formed by welding the peripheral portions of the metal member (or the peripheral portions of the metal member and the metal plate). Therefore, the operation for forming the through hole can be easily performed. Further, unlike the case where a through hole is provided in the metal member arranged in the tank, it is possible to prevent dust such as cutting waste generated by the formation of the through hole from remaining in the tank.
  • the above welding includes, for example, cold welding in addition to normal welding such as electric welding, laser welding, argon welding, and gas welding. Further, the number of the metal members may be changed depending on the application as long as it is at least two (two or more).
  • the volume of the compartment can be easily changed.
  • the volume of the compartment can be easily set, and the residence time of the fluid staying in the compartment can be adjusted, so that the heating time of the fluid can be easily controlled.
  • the metal plate is disposed between at least one of the adjacent metal members, and the metal plate is disposed between all the adjacent metal members. May be.
  • the size of the opening formed in the metal plate is not particularly limited, but is preferably larger than the through hole.
  • all of the plurality of metal members may be configured such that the inner side portion thereof is thinner than the peripheral portion.
  • the metal member may be a magnetic material.
  • a heat exchanger is manufactured using a magnetic material as the metal member. Accordingly, by using a ferromagnetic material as the metal member, for example, an electromagnetic induction heating method can be adopted as a method of heating the heat exchange. That is, with the above configuration, an electromagnetic induction heating type heat exchanger can be manufactured.
  • the through-hole formed in each of the adjacent metal members V forms the heating tank. It is a configuration in which the peripheral portions are welded so that they do not overlap with each other in the traveling direction of the fluid passing therethrough.
  • the through holes formed in the adjacent metal members do not overlap in the traveling direction of the fluid passing through the heating tank.
  • the fluid that has entered the compartment does not directly enter the through-hole formed in the next metal member, and is introduced into the through-hole after colliding with the metal member.
  • lead to the compartment The fluid is placed in the traveling direction of the fluid and collides with the metal member to be in a turbulent state. Therefore, with the above configuration, the fluid can be sufficiently heated in the compartment.
  • the perforated holes can be formed in the metal member before forming the calorie heat tank by welding the peripheral portions of the metal members, so that each metal member in the polymerization step can be formed.
  • the positions of the through holes in the adjacent metal members can be easily formed so as not to overlap each other in the direction in which the fluid passes through the heating tank.
  • the through hole and the opening formed in the metal plate do not overlap in the traveling direction of the fluid passing through the heating tank. In this way, the above-described through hole is formed!
  • the through hole is formed so that the through hole and the opening do not overlap in the traveling direction of the fluid passing through the heating tank.
  • the fluid guided to the compartment from the through hole formed in the metal member hits the metal plate. That is, the fluid guided to the compartment is arranged in the traveling direction of the fluid! And collides with the metal plate to be in a turbulent state. Therefore, by adopting the above configuration, for example, when the through-holes are provided in adjacent metal members and are arranged in the same Cf standing position (the through-holes are directed in the direction of fluid flow and straight. It is possible to heat the fluid sufficiently in the compartment.
  • a taper is formed on the peripheral portion of the metal member, and in the tank forming step, the peripheral portion is welded using the taper. Even if it is the structure to do.
  • the peripheral edge of the metal member is tapered, and the peripheral edges are welded together using this taper.
  • the welding area can be increased and the welding area can be further deepened. Therefore, the peripheral portions can be welded more reliably.
  • the taper is also formed on the peripheral portion of the metal plate.
  • the heat exchanger manufacturing method includes a through hole forming step of forming the through holes in the plurality of metal members, and the plurality of metal members in the through hole forming step.
  • the through-hole may be formed in at least a part of the metal member so as to penetrate the metal member in a direction non-parallel to the traveling direction of the fluid passing through the heating tank.
  • FIG. 1 is a drawing for explaining a schematic method of manufacturing a heat exchanger that is useful for an embodiment of the present invention.
  • FIG. 2 (a) is a front view for explaining an example of a metal member constituting the heat exchanger shown in FIG.
  • FIG. 2 (b) is a cross-sectional view for explaining an example of a metal member constituting the heat exchange shown in FIG.
  • FIG. 3 (a) is a cross-sectional view for explaining an example of a cross-sectional shape of the metal member shown in FIG.
  • FIG. 3 (b) is a cross-sectional view for explaining an example of a cross-sectional shape of the metal member shown in FIG. [3 (c)]
  • FIG. 3 is a cross-sectional view for explaining an example of a cross-sectional shape of the metal member shown in FIG. [3 (d)]
  • FIG. 3 is a cross-sectional view for explaining an example of a cross-sectional shape of the metal member shown in FIG. [3 (e)]
  • FIG. 3 is a cross-sectional view for explaining an example of a cross-sectional shape of the metal member shown in FIG. [3 (£)] is a cross-sectional view for explaining an example of the cross-sectional shape of the metal member shown in FIG. [4]
  • FIG. 4 is a cross-sectional view showing a modified example of the heating tank provided in the heat exchange that works in one embodiment of the present invention.
  • ⁇ 5 (a)] is a drawing for explaining an example of a method of manufacturing a heat exchanger according to one embodiment of the present invention.
  • FIG. 5 is a drawing for explaining an example of a manufacturing method for heat exchange that is applied to an embodiment of the present invention.
  • ⁇ 5 (e)] is a drawing for explaining an example of a method of manufacturing a heat exchanger according to an embodiment of the present invention.
  • [5] is a drawing for explaining an example of a method of manufacturing a heat exchanger that is useful in an embodiment of the present invention.
  • ⁇ 5 (g)] is a drawing for explaining an example of a method for manufacturing a heat exchanger according to an embodiment of the present invention.
  • FIG. 5 is a drawing for explaining an example of a method for producing heat exchanging according to an embodiment of the present invention.
  • FIG. 6 is a drawing for explaining an example of a method of manufacturing a heat exchanger that is relevant to an embodiment of the present invention.
  • FIG. 7 is a cross-sectional view showing another configuration of the heating tank provided in the heat exchanging system according to the embodiment of the present invention.
  • FIG. 8 is a cross-sectional view showing still another configuration of the heating tank provided in the heat exchange that is effective in the embodiment of the present invention.
  • FIG. 9 (a) is a cross-sectional view illustrating another embodiment of a heating tank provided in a heat exchanger that is powerful in another embodiment of the present invention.
  • FIG. 9 (b) is a cross-sectional view illustrating another embodiment of the heating tank provided in the heat exchange that is effective in another embodiment of the present invention.
  • FIG. 10 is a cross-sectional view for explaining still another embodiment of a heating tank provided in a heat exchanger that works on another embodiment of the present invention.
  • FIG. 11 (a) is a cross-sectional view of a main part of a heating tank provided in a heat exchanger that is used in an embodiment of the present invention.
  • FIG. 11 (b) is a cross-sectional view of the AA cross section shown in FIG. 11 (a).
  • FIG. 11 (c) is a cross-sectional view of the BB cross section shown in FIG. 11 (a).
  • FIG. 12 is an explanatory diagram showing a schematic configuration of an experimental apparatus used in an experiment for examining the behavior of a fluid inside a heat exchanger that is effective in an embodiment of the present invention.
  • FIG. 13 (a) is a cross-sectional view of an acrylic model used in the experimental apparatus shown in FIG.
  • FIG. 13 (b) is a cross-sectional view taken along the line CC of FIG. 13 (a).
  • FIG. 14 is a diagram showing an example of the experimental results.
  • FIG. 15 is a diagram showing an example of the experimental results.
  • FIG. 16 is a diagram showing an example of the experimental results.
  • FIG. 17 is a diagram showing the result of a simulation for investigating the behavior of a fluid inside a heat exchanger that is effective in an embodiment of the present invention.
  • the fluid includes gas and liquid.
  • FIG. 2 (a) is a front view for explaining an example of the metal member 10, and FIG. 2 (b) is a sectional view thereof.
  • the metal member 10 has a peripheral edge portion 11 (welded portion) for welding to another metal member 10 and a compartment when the other metal member 10 is welded. And a partition wall portion 12 for forming.
  • the peripheral edge 11 is an area for welding with another metal member 10. Further, it is preferable that at least a part of the peripheral edge portion 11 has a taper so that the peripheral edge portion 11 can be more strongly welded when being welded to the other metal member 10. Then, the adjacent tape members are welded together using an appropriate solubilizing agent, whereby the adjacent metal members 10 can be welded more firmly.
  • the metal member 10 has a plate shape, and the thickness in the cross-sectional direction is thinner at the inner side portion than at the peripheral edge portion 11.
  • the thickness of the partition wall portion 12 is thinner than the thickness of the peripheral edge portion 11, and the thickness of the central portion of the metal member 10 (partition wall portion 12) is the thinnest.
  • the shape of the metal member 10 is not particularly limited, but it is preferable that the peripheral portion 11 be easily welded.
  • the peripheral portion 11 may be a circle as shown in FIG. 2 (a), or may be a circle, an ellipse, a rectangle, or a polygon.
  • FIG. 3A to FIG. 3H are cross-sectional views for explaining an example of the cross-sectional shape of the metal member 10.
  • the metal member 10 has, for example, a shape that is inclined toward the inward side from the peripheral edge 11 as shown in FIG. 3 (a) (that is, a shape in which the thickness is gradually reduced). However, as shown in Fig. 3 (b), it may have a concave cross-section (curved surface). Also, as shown in Fig. 3 (c), it is directed from the peripheral edge 11 toward its inner side. It may be a stepped shape that goes down with force. Also, for example, as shown in FIGS. 3 (a) to 3 (c), by processing both surfaces of the metal member 10, the thickness of the metal member 10 is increased from the peripheral edge 11 to the inner side. As shown in FIGS. 3 (d) to 3 (f), by processing only one surface of the metal member 10, the inner side of the metal member 10 from the peripheral edge 11 is obtained. You may make it into the shape where thickness decreases thinly.
  • the metal member 10 is formed with a through hole 20 penetrating in the thickness direction (note that Fig. 3 (a) to Fig. 3).
  • the through hole 20 is shown for convenience of explanation. Not) The through hole 20 is formed at a position closer to the outer peripheral part (peripheral part 11) than the central part in the surface corresponding to the partition wall of the compartment formed when the peripheral parts 11 of the metal member 10 are welded together. Is preferred. In other words, it is more preferable that the through hole 20 is formed at a position closer to the outer peripheral portion (the peripheral edge portion 11) than the central portion of the metal member 10.
  • the fluid discharged from the force through-hole 20 stays in the vicinity of the peripheral edge 11 of the metal member 10 while forming a high-speed rotating vortex, increasing the effective heat transfer area and forcing due to the vortex.
  • Very efficient heating of the fluid can be performed by convective heat transfer.
  • the position of the through-hole 20 is not limited to the above-described position. For example, it may be provided near the center of the metal member 10 as shown in FIG.
  • the number of through holes 20 in each metal member 10, the size (diameter), the shape, etc. of each through hole 20 are not particularly limited, depending on the amount of fluid supplied to the heat exchanger. It can be set appropriately.
  • the shape of the through hole 20 may be circular or rectangular.
  • the direction of penetration of the through hole 20 is not particularly limited, and may be parallel to the thickness direction of the metal member 10 or different from the thickness direction.
  • the material of the metal member 10 is not particularly limited as long as it is a material that can be welded, and may be appropriately set according to the use of the heat exchanger. For example, when the heated fluid discharged from the heat exchanger is used for food applications, it is preferable to use a dull material such as stainless steel.
  • the material of the metal member 10 is preferably a metal with high thermal conductivity. Specifically, as a material constituting the metal member 10, for example, iron, aluminum, copper or the like may be used, or an alloy may be used.
  • an eddy current is applied when a high frequency AC voltage is applied from an external cover as a material constituting the metal member 10. It is necessary to use a material that generates An example of such a material is a magnetic material.
  • a strong magnetic metal such as iron, stainless steel 430, 403, 304, nickel, titanium, etc. In this case, the magnetic strength is weak, and a magnetic metal is used.
  • FIG. 11 (a) shows the configuration of the main part of the heating tank 30.
  • the heating tank 30 is formed by superimposing the metal members 10 and welding the peripheral portions 11 (outer peripheral portions) of the adjacent metal members 10 together. More specifically, the heating tank 30 is formed by welding the metal members 10 to each other using a taper formed on the peripheral edge portion 11 of the metal member 10.
  • the wall constituting the compartment 19 and the outer wall of the heating tank 30 are the same in the calo heat tank 30. That is, the metal chambers 10 are welded together to form the compartment 19 and the heating tank 30.
  • the number of the compartments 19 included in the heating tank 30, that is, the number of the metal members 10 to be used may be appropriately set depending on the application to be used.
  • FIG. 11 (b) is a cross-sectional view taken along the line AA shown in FIG. 11 (a), and FIG. 11 (b) is a cross-sectional view taken along the line BB shown in FIG. 11 (a).
  • the opening positions of the through holes 20 formed in the metal member 10 are different between adjacent metal members 10.
  • the through holes 20 are arranged so as not to overlap between the adjacent metal members 10 in the fluid traveling direction in the heating tank 30.
  • FIGS. 5 (a) to 5 (h) and FIG. 6 are drawings for explaining an example of a method of manufacturing the heat exchange that is relevant to the present embodiment.
  • FIGS. 5 (a) and 5 (c) FIGS. 5 (e) and 5 (g) are front views, and FIGS. 5 (b), 5 (d), 5 (f), and 5 (h) are cross-sectional views.
  • FIGS. 5 (b), 5 (d), 5 (f), and 5 (h) are cross-sectional views.
  • a disk-shaped metal member 10 is prepared.
  • SUS403 is used as the disk-shaped metal member 10.
  • the peripheral edge portion 11 of the disk-shaped metal member 10 is left as a welded portion for welding to the other metal member 10,
  • One side or both sides of the metal member 10 is ground from the peripheral edge portion 11 to the central portion so as to be thinned.
  • the metal member 10 is ground using a lathe.
  • chamfering is performed to weld the peripheral edge 11 of the metal member 10 to another metal member 10 (a taper is formed on the peripheral edge 11).
  • a through hole is formed in the center of the metal member 10 in order to adjust the position between the plurality of metal members 10.
  • the through hole is formed for easy positioning, and is not always necessary.
  • a positioning shaft 15 is passed through a through hole formed in the center of the metal member 10, and a plurality of shafts 15 are passed through the shaft 15. Pass metal member 10 through.
  • the positions of the through holes 20 formed in each metal member 10 are different between adjacent metal members 10, that is, in a direction orthogonal to the plane of the metal member 10 (heating tank 30).
  • the metal members 10 are arranged so as not to overlap with each other in the fluid traveling direction in FIG.
  • the heating tank 30 is formed by welding the peripheral edges 11 of the adjacent metal members 10 around each other.
  • the shaft 15 and the metal member 10 may or may not be welded.
  • lids 16 and 16 are formed at both ends of heating tank 30 (ends of a plurality of welded metal members 10).
  • a fluid supply port 17 (inlet) and a discharge port 18 (outlet) are attached to the lids 16 and 16.
  • the heat exchange 1 is manufactured as described above.
  • the flat metal member 10 is ground to form the metal member 10 whose inner side portion is thinner than the peripheral portion 11, but the initial force is also higher than that of the peripheral portion 11.
  • the above grinding step is not necessary.
  • welding is performed after positioning all of the plurality of metal members 10 to be welded. For example, after the peripheral portions 11 of the two metal members 10 are first welded together, Further, another metal member 10 may be overlapped with this for welding.
  • the heat exchanger 1 has a through hole 20 for allowing the fluid to pass therethrough, and the inner side of the peripheral portion 11 is more inward.
  • the peripheral edge 11 of the plate-like metal member 10 whose side portion is thinner is connected to another adjacent metal member 10 (plate-like).
  • the heating tank 30 is formed by welding with the peripheral edge portion 11 of the above-described one having the through-hole 20 formed therein.
  • the number of metal members 10 to be used is not particularly limited, and may be set as appropriate depending on the intended use. For example, if the fluid passing through the heating tank 30 is sufficiently heated, a plurality of compartments 19 may be formed using a large number of metal members 10. Further, the number of metal members 10 may be set according to the shape and size of the heating means for heating the heating tank 30 from the outside of the heating tank 30.
  • the above welding includes, for example, cold welding in addition to at least one ordinary welding such as electric welding, laser welding, argon welding, and gas welding. Also, the above-mentioned welding examples may be combined as appropriate.
  • the heat exchange 1 includes a calorie heat tank 30, a supply port 17 for supplying fluid to the heating tank 30, and a discharge port 18 that is an outlet for fluid discharged from the heating tank 30. ing.
  • a compartment 19 made of the metal member 10 is formed by welding the peripheral portions 11 of the metal members 10 to each other. And the peripheral edge parts 11 of the adjacent metal member 10 are welded (in the figure, a black-painted part).
  • the fluid supplied from the supply port 17 passes through the through hole 20 formed in the metal member 10 and stays in the compartment 19 formed in the heating tank 30.
  • the heating tank 30 is heated by heating the heating tank 30 from the outside. As a result, the fluid staying in the compartment 19 and passing through the heating tank 30 through the through holes 20 is heated.
  • the fluid passing through the (heating tank 30) can be heated.
  • any heating means for heating the heat exchanger 1 from the outside of the heat exchanger 1 may be used.
  • the heat exchanger 1 is directly heated using a burner, a chromium wire, or the like.
  • the metal member 10 constituting the heat exchanger 1 is, for example, an IH (induction) such as a magnetic material. heating) If the material is compatible, it can be heated by electromagnetic induction!
  • the heat exchanger 1 is heated using, for example, an electromagnetic induction heating method, that is, when the heat exchanger 1 is heated using a high-frequency AC power supply, a magnetic material is used as the metal member 10.
  • the high frequency of the high-frequency AC power supply means a frequency higher than the frequency 50-60 ⁇ ⁇ of the household power supply, for example, 250 ⁇ -60,000 while taking into account the influence on nearby radio interference etc. Applicable in a wide range of Hz.
  • FIG. 12 is an explanatory diagram showing a schematic configuration of an experimental apparatus used in this experiment.
  • the microvalve generator 32 mixed microvalves (microbubbles) with water in the water tank 36, and the water containing this microvalve was pumped by the acrylic model 31 (heat exchange ⁇ 1 acrylic Model), the microvalve movement in the compartment was photographed with the high-speed camera 33, and taken into the personal computer 37 for confirmation.
  • O-Max OMIV type manufactured by Auratech
  • FASTCAM- Rabbit manufactured by Photoron
  • Canon ZOOM L ENZ PH6 X 8MACR08-48mm attached thereto was used as the high-speed camera 33.
  • a flow meter Q (STEC LF10—PTN (1'5 to 2.0 liters Zmin)) and a flow control valve 40 are placed between the pump P and the acrylic model 31 to the acrylic model 31. The flow rate of water to be passed was measured and the flow rate was adjusted.
  • FIG. 13 (a) is a cross-sectional view of the acrylic model 31, and FIG. 13 (b) is a cross-sectional view of the CC cross section shown in FIG. 13 (a).
  • the same experiment was performed in two cases, with and without the central shaft 39 penetrating the center of each acrylic plate. As a result, the presence or absence of the central shaft 39 exerted almost no influence on the fluid behavior.
  • the acrylic plates 34a and 34b have a flat shape on both sides with a thickness of 10 mm, and the acrylic plates 34c and 34d have a concave shape on both sides.
  • the thickness of the peripheral edge of the acrylic plates 34c and 34d is 10mm.
  • the acrylic plates 34a to 34d are arranged in this order from the lower side in the vertical direction. Further, the outer diameter portions of the acrylic plates 34 are attached to the inner diameter of the acrylic model 31.
  • the formation positions of the through hole 35a and the through hole 35b are shifted from each other by 11.25 degrees.
  • install the acrylic plates so that the positions of the through-holes 35a and 35b provided in the adjacent acrylic plates do not overlap each other in the vertical direction (direction in which the fluid passes through the acrylic model 31).
  • Figure 14 shows the state of the compartment 38a formed between the acrylic plates 34a and 34b when 18.2 X 10 _3 m 3 / min of water is passed through the acrylic model 31. This is an image of the captured video.
  • High speed rotating vortices (poroidal vortices) rotating in opposite directions were confirmed in the two circled parts in the figure. More specifically, a high-speed rotating vortex formed by the fluid immediately after being ejected from the through-hole 20 and a high-speed rotating vortex that rotates in a direction opposite to the vortex near the inner surface of the outer wall of the heating tank 30 rather than the vortex. was observed.
  • a flow (toroidal flow) rotating in the compartment 38a along the circumferential direction of the acrylic model 31 was confirmed.
  • Figure 15 shows a picture of the state in the compartment 38b formed between the acrylic plates 34b and 34c when 18.2 X 10 _3 m 3 Zmin of water is passed through the acrylic model 31. This is an image of a movie.
  • Fig. 16 shows the acrylic when water of 18.2 X 10 _3 m 3 / min is passed through the acrylic model 31. This is a captured image of a moving image of the state in the compartment 38c formed between the plates 34c and 34d.
  • the bubbles (water) discharged from the through-hole 35 move in each compartment at about lZ30 sec (about 20 mm, that is, about 600 mmZs moving speed during the imaging interval of the high-speed camera 33). It was a great help. This moving speed corresponds to about 14 times the moving speed 43 mmZs when it is assumed that the acrylic plate 34 is not attached.
  • FIG. 17 is a diagram showing the results of a steady turbulent flow simulation performed on the heat exchanger 1.
  • SCRYU / Tetra for Windows registered trademark
  • the standard k- ⁇ model was adopted as the turbulence model.
  • the results of flow analysis by turbulent flow simulation also confirmed that high-speed rotating vortices (poroidal vortices) were generated in each cell (compartment chamber).
  • the manufacturing method of the heat exchanger 1 that is effective in the present embodiment uses a plurality of metal members 10 that are plate-shaped and have through holes 20 for allowing fluid to pass through.
  • 10 is a superposition step of superposing a plurality of metal members 10 such that metal member 10 whose inner side portion is thinner than peripheral edge portion 11 is disposed on at least one of adjacent metal members 10.
  • the heat exchange is plate-shaped, and a plurality of metal members 10 having through holes 20 for allowing fluid to pass therethrough are used.
  • the metal member 10 whose thickness is thinner is disposed on at least one of the adjacent metal members 10, and the peripheral portions 11 of the adjacent metal members 10 are welded to each other so that the adjacent metal member 10 defines the partition.
  • the heating tank 30 includes a wall of the chamber 19 and an outer wall of the heating tank 30.
  • the outer peripheral wall of the tank can be formed by welding the peripheral edge portions 11 of the two adjacent metal members 10, and the wall of the compartment 19 existing inside the tank can be formed. Yes (the outer wall of the heating tank 30 and the wall of the compartment 19 can be made of the same member).
  • the interface between the outer wall of the heating tank 30 and the wall constituting the compartment 19 that could possibly occur can be completely eliminated. Therefore, when the heating tank 30 is heated from the outside, the heat supplied to the heating tank 30 is efficiently transmitted from the outer wall of the heating tank 30 to the wall constituting the compartment 19. Since the metal member 10 forming the wall of the compartment 19 has a thinner inner side than the peripheral edge 11, the heat supplied from the outside is It is efficiently transmitted to the central direction (where the thickness of the metal member 10 is thin). Therefore, with the above configuration, even when the heating tank 30 is heated from the outside, heat is efficiently transferred to the inside of the heating tank 30, so that the inside of the heating tank 30, that is, the compartment 19 is configured. The wall is heated enough. As a result, the fluid guided to the compartment 19 can be heated sufficiently compared to the conventional case.
  • the fluid is further accelerated as it moves from the compartment 19 on the supply port 17 side toward the compartment 19 on the discharge port 18 side.
  • the heat transfer characteristics improve as the fluid velocity increases, so the heat transfer characteristics improve as the gas moves to the downstream compartment 19, and the heating efficiency of the heat exchanger 1 as a whole increases dramatically. improves.
  • the fluid is accelerated toward the compartment 19 on the discharge port 18 side from the compartment 19 on the supply port 17 side, whereby the flow rate of the fluid passing through the heat exchanger 1 can be increased.
  • the penetration direction through which the through-hole 20 penetrates the metal member 11 may be inclined (non-parallel) to the longitudinal direction of the heating tank 30 (direction in which the fluid passes through the heating tank 30).
  • the direction in which the fluid is discharged to the downstream compartment 19 through the through-hole 20 and the direction of fluid movement (vortex tangent) in the high-speed rotating vortex generated in the downstream compartment 19 Direction) and the moving speed of the fluid in the high-speed rotating vortex can be further increased. Therefore, the heat transfer characteristics can be further improved and the fluid can be heated more suitably.
  • heat exchange can be produced by welding the peripheral portions 11 of the plate-like metal member 10, so that the tank is placed after the plate-like member is placed in a conventional tank.
  • the heat exchange can be manufactured more easily, and the interface that may partially occur between the tank and the plate-like member is completely eliminated. It can be lost.
  • the peripheral portions 11 of the adjacent metal members 10 are welded together, the interface between the metal members 10 can be eliminated. Thereby, for example, a part of the heating tank 30 is Even when heated, the heat is efficiently transferred to the adjacent metal member 10. Thereby, heat can be conducted to the entire heating tank 30.
  • one surface side force of the magnetic member is a force that cannot be force welded.
  • tanks can be eliminated. This eliminates the possibility of occurrence between the tank and the compartment 19 as in the prior art, and the wall of the compartment 19 and the outer wall of the heating tank 30 are combined with one member (metal member 10).
  • metal member 10 can be configured. Since the metal members 10 can be welded to each other, the interface between the adjacent metal members 10 can be eliminated as compared with the conventional case.
  • the through holes 20 can be formed in the metal member 10 before the peripheral portions 11 of the metal member 10 are welded together to form the heating tank 30, the work for forming the through holes 20 is possible. Can be done easily.
  • the degree of freedom of work for forming the through-hole 20 is increased, for example, the shape of the through-hole 20 can be formed into various shapes such as a circle, an ellipse, a rectangle, a polygon, and the penetration direction of the through-hole 20 can be changed.
  • the metal members 10 can be slanted (non-parallel) with respect to the adjacent direction of the metal members 10 (the direction in which the fluid passes through the heating tank 30), or the areas of the openings can be made different along the penetration direction of the through holes 20. Further, unlike the case where the through hole 20 is provided in the metal member 11 after being disposed in the heating tank 30, it is possible to prevent dust such as cutting waste generated by the formation of the through hole 20 from remaining in the heating tank 30. .
  • a positioning step may be performed to determine the positions of the metal members 10 to be welded with each other.
  • the relative positions of the adjacent metal members 10 may be fixed using a positioning member. More specifically, the relative position of the adjacent metal members 10 may be fixed by forming a through hole in the metal member 10 and inserting a metal rod as a positioning member into the through hole.
  • peripheral portion 11 between the metal member 10 having a shape in which only one side is thinner than the peripheral portion 11 and the inner side portion thereof is thinner than the peripheral portion 11 is formed. More heating tank 30 may be formed.
  • the configuration using the plate-like metal member 10 whose inner side portion is thinner than the peripheral edge portion 11 is described.
  • the present invention is not limited to the above configuration.
  • only one (one) metal member 10 has an inner side portion than the peripheral portion 11.
  • a plate having a thinner side may be used.
  • the heating tank 30 may be formed by welding the peripheral portions 11 of the metal member 10 and the flat metal member 10 together.
  • FIG. 9 (a) is a cross-sectional view for explaining another form of the heating tank 30 that works on the present embodiment.
  • a plate-shaped metal plate (spacer) 21 having an opening is sandwiched between adjacent metal members 10.
  • the size of the opening of the metal plate 21 may be set as appropriate. Further, the shape of the opening is not particularly limited, and may be a round shape or a rectangular shape. Note that the outer shape of the metal member 10 and the metal plate 21 is more preferably the same.
  • the material of the metal plate 21 is not particularly limited as long as it is a metal, but it is more preferable to use the same material for the metal plate 21 and the metal member 10.
  • the volume of the compartment 19 formed by the adjacent metal member 10 and the metal plate 21 can be easily adjusted. In other words, adjacent to each other as in Embodiment 1.
  • a partition plate 19 is formed by sandwiching a metal plate 21 (spacing adjustment member) for adjusting the volume of the compartment 19 and two adjacent metal members 10 and the metal plate 21 sandwiched between them. It becomes easy to adjust the volume of the compartment 19.
  • the heating tank 30 which is effective in the present embodiment, two adjacent metal members 10 are overlapped with the metal plate 21 interposed therebetween, and the metal member 10 and the metal plate 21 are overlapped.
  • the peripheral portions 11 may be welded together. Thereby, the heating tank 30 in which the metal plate 21 is sandwiched between the metal members 10 can be manufactured.
  • each metal member 10 has a shape that becomes thinner toward the inward side (center side).
  • the shape of the metal member 10 is limited to this. It is not a thing.
  • each metal member 10 may have a flat plate shape with a constant thickness. Further, only one surface of the metal member 10 may be flat.
  • Each metal member 10 does not have to have the same shape.For example, a part of the plurality of metal members has a flat plate shape, and the remaining metal members have a shape that becomes thinner toward the inward side. There may be.
  • the position of the through holes 20 formed in these metal members 10 passes through the heating tank 30. If they overlap in the direction of travel, the openings of the metal plate 21 are formed so that they do not overlap in the direction of travel of the fluid passing through the through holes 20 and the heating tank 30! More preferable.
  • the opening of the metal plate 21 is formed so that the fluid guided to the compartment 19 through the through hole 20 collides with the metal plate 21. It is more preferable.
  • the metal plate 21 functions as a collision plate that only needs to adjust the volume of the compartment 19.
  • the heating tank 30 is cylindrical, that is, when the shape of the metal member 10 is circular, the metal plate 21 has a donut shape.
  • the force using the metal plate 21 having a constant plate thickness except for the opening is not limited to this, and the plate thickness may not be constant. For example, the plate thickness may be thinner toward the inner side.
  • the metal member 10 is led to the compartment 19 from the through hole 20 formed in the metal member 10.
  • the discharged fluid hits the metal plate 21. That is, the fluid guided to the compartment 19 is arranged in the traveling direction of the fluid! And collides with the metal plate 21 to be in a turbulent state. Therefore, by adopting the above-described configuration, for example, when the through holes 20 provided in the adjacent metal members 10 are arranged at the same position (the through holes 20 are directed on the straight line by directing in the fluid traveling direction). Even if the fluid is sufficiently heated in the compartment 19.
  • the through hole 20 formed in the metal member 10 and the opening formed in the metal plate 21 and the traveling direction of the fluid passing through the 1S heating tank 30 should not overlap.
  • the formation of the high-speed rotating vortex in the compartment 19 can be stabilized. Therefore, the heating efficiency can be stabilized at a high level.
  • the manufacturing method of the heat exchanger 1 uses a plurality of metal members 10 that are plate-shaped and have the through holes 20 for allowing fluid to pass through.
  • the metal member 10 whose inner side portion is thinner than the peripheral portion 11 is disposed on at least one of the adjacent metal members 10, and between the adjacent metal members 10.
  • a plurality of metal members 10 and the metal plate 21 are superposed so that a metal plate 21 having an opening is disposed on the metal plate 21, and the adjacent metal member 10 and the metal plate 21.
  • This is a method including a tank forming step of forming the heating tank 30 in which the walls of the compartment 19 and the outer wall of the heating tank 30 are integrated by welding the peripheral portions 11 to each other.
  • the heat exchange has a plate shape, and a plurality of metal members 10 having through holes 20 for allowing fluid to pass therethrough are used, and among the metal members 10, the inner side of the peripheral portion 11 is provided.
  • the metal member 10 whose portion is thinner is disposed on at least one of the adjacent metal members 10, and the metal plate 21 having an opening is disposed between the adjacent metal members 10.
  • the peripheral portions 11 of the metal member 10 and the metal plate 21 are welded to each other, so that the wall of the partition chamber 19 and the heating tank 30 are separated by the metal plate 21 and the adjacent metal member 10.
  • the configuration includes a heating tank 30 formed with an outer wall.
  • the volume of the compartment 19 can be easily changed. That is, with the above configuration, the volume of the compartment 19 can be easily set, and the residence time of the fluid staying in the compartment 19 can be adjusted, so that the heating time of the fluid can be easily controlled. it can.
  • the metal plate 21 may be disposed between at least one pair of the adjacent metal members 10.
  • the metal plate 21 may be disposed between all the adjacent metal members 10.
  • the heat exchanger according to the present invention can be suitably used for applications in which heating is performed by circulating a fluid in a heating tank.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Thermal Sciences (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Details Of Fluid Heaters (AREA)

Abstract

Procédé pour produire un échangeur de chaleur (1) pourvu d’un réservoir de chauffage (30) qui renferme une chambre segmentée pour contenir et chauffer un fluide qui a été conduit à la chambre segmentée, en chauffant le réservoir de chauffage (30) depuis l’extérieur. Le procédé comprend une étape de superposition et une étape de formation du réservoir. À l’étape de superposition, des organes en métal en formes de plaques (10) ayant des trous traversants (20) pour laisser passer le fluide sont utilisés, et les organes en métal (10) sont superposés de façon que, à partir des organes en métal (10), des organes en métal (10), dont les bords périphériques (11) ont une épaisseur inférieure à celle des parties à l’intérieur des bords périphériques, soient utilisés chacun comme au moins l’un ou l’autre des organes en métal adjacents (10). Dans l’étape de construction du réservoir de chauffage (30), celui-ci est formé par l’intégration d’une paroi de la chambre segmentée et d’une paroi externe du réservoir de chauffage (30), ceci étant réalisé par soudage des bords périphériques (11) des organes en métal adjacents (10). Ceci simplifie la production de l’échangeur de chaleur et réchauffe suffisamment le fluide.
PCT/JP2006/313788 2005-07-12 2006-07-11 Échangeur de chaleur et procédé pour le fabriquer WO2007007763A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1020087003260A KR101274599B1 (ko) 2005-07-12 2006-07-11 열교환기 및 그 제조 방법
JP2007524663A JP4842943B2 (ja) 2005-07-12 2006-07-11 熱交換器およびその製造方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2005203665 2005-07-12
JP2005-203665 2005-07-12

Publications (1)

Publication Number Publication Date
WO2007007763A1 true WO2007007763A1 (fr) 2007-01-18

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Country Link
JP (1) JP4842943B2 (fr)
KR (1) KR101274599B1 (fr)
TW (1) TWI352641B (fr)
WO (1) WO2007007763A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPWO2021029022A1 (fr) * 2019-08-14 2021-02-18

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI472419B (zh) * 2012-12-28 2015-02-11 Metal Ind Res & Dev Ct 熱交換器之製造方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05161970A (ja) * 1991-11-25 1993-06-29 Toshiba Corp 給水加熱器の管板と水室鏡の溶接方法
JPH1158018A (ja) * 1997-06-12 1999-03-02 Hitachi Zosen Corp 厚板横向きサブマージドアーク溶接装置
JP2002075609A (ja) * 2000-09-02 2002-03-15 Toyoji Mukoyama 高周波加熱による温水蒸気発生装置
JP2004251605A (ja) * 2002-04-02 2004-09-09 Masami Nomura 過熱蒸気発生装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05161970A (ja) * 1991-11-25 1993-06-29 Toshiba Corp 給水加熱器の管板と水室鏡の溶接方法
JPH1158018A (ja) * 1997-06-12 1999-03-02 Hitachi Zosen Corp 厚板横向きサブマージドアーク溶接装置
JP2002075609A (ja) * 2000-09-02 2002-03-15 Toyoji Mukoyama 高周波加熱による温水蒸気発生装置
JP2004251605A (ja) * 2002-04-02 2004-09-09 Masami Nomura 過熱蒸気発生装置

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPWO2021029022A1 (fr) * 2019-08-14 2021-02-18
WO2021029022A1 (fr) * 2019-08-14 2021-02-18 正己 野村 Échangeur de chaleur
JP7221502B2 (ja) 2019-08-14 2023-02-14 正己 野村 熱交換器

Also Published As

Publication number Publication date
KR20080041191A (ko) 2008-05-09
TWI352641B (en) 2011-11-21
KR101274599B1 (ko) 2013-06-13
JPWO2007007763A1 (ja) 2009-01-29
TW200714401A (en) 2007-04-16
JP4842943B2 (ja) 2011-12-21

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