WO2012001759A1 - Corps tubulaire de circonférence variable - Google Patents

Corps tubulaire de circonférence variable Download PDF

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Publication number
WO2012001759A1
WO2012001759A1 PCT/JP2010/060981 JP2010060981W WO2012001759A1 WO 2012001759 A1 WO2012001759 A1 WO 2012001759A1 JP 2010060981 W JP2010060981 W JP 2010060981W WO 2012001759 A1 WO2012001759 A1 WO 2012001759A1
Authority
WO
WIPO (PCT)
Prior art keywords
cylindrical body
cross
axial direction
variable
shape
Prior art date
Application number
PCT/JP2010/060981
Other languages
English (en)
Japanese (ja)
Inventor
裕 道脇
Original Assignee
Michiwaki Hiroshi
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 Michiwaki Hiroshi filed Critical Michiwaki Hiroshi
Priority to PCT/JP2010/060981 priority Critical patent/WO2012001759A1/fr
Priority to KR1020127033592A priority patent/KR20130088758A/ko
Priority to JP2012522365A priority patent/JPWO2012001759A1/ja
Publication of WO2012001759A1 publication Critical patent/WO2012001759A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
    • F28F13/06—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media
    • F28F13/08—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by varying the cross-section of the flow channels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/02—Tubular elements of cross-section which is non-circular
    • F28F1/025—Tubular elements of cross-section which is non-circular with variable shape, e.g. with modified tube ends, with different geometrical features
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/0053—Details of the reactor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/24—Stationary reactors without moving elements inside
    • B01J19/2415—Tubular reactors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/02—Tubular elements of cross-section which is non-circular
    • F28F1/04—Tubular elements of cross-section which is non-circular polygonal, e.g. rectangular
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
    • F28F13/06—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/0028—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for cooling heat generating elements, e.g. for cooling electronic components or electric devices
    • F28D2021/0029—Heat sinks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2210/00—Heat exchange conduits
    • F28F2210/02—Heat exchange conduits with particular branching, e.g. fractal conduit arrangements

Definitions

  • the present invention relates to a cylindrical body or pipe material, and in particular, a heat exchanger for circulating a fluid inside and efficiently exchanging heat of the fluid and external heat, piping thereof, or the like on the inner surface.
  • the present invention relates to a tube material or the like for forming a catalyst layer and causing a passing fluid to undergo a catalytic reaction.
  • the heat exchanger can be formed into a tubular material having good thermal conductivity such as copper and aluminum, and the fluid to be heat exchanged can be circulated therein, The heat exchange between the heat of the fluid and the external heat is efficiently performed, and the heat exchange pipe that can efficiently bring the temperature of the fluid close to the external temperature is included. .
  • a metal pipe used for a heat exchanger that is, a heat exchange pipe
  • a heat exchange pipe has a contact area between the pipe and the outside by connecting a heat sink to the outer periphery of the pipe. It is often configured to increase the heat exchange efficiency by making it larger, and it is configured to make the heat exchange time longer by meandering the pipe material and setting a longer heat exchange distance. There are many.
  • the catalyst tube or the like has a large number of elongated holes having a catalyst layer formed on the inner peripheral surface, or a regular hexagonal tubular material is converged. In many cases, a honeycomb structured tube is used.
  • Such a conventional heat exchange tube is set so that the contact area between the outer surface of the tube material and the outside becomes wider by providing a heat sink on the outer periphery of the tube material, but just by providing a heat sink on the outer surface of the tube material, Only the outer surface area with respect to the inner surface area of the tube material is significantly increased.
  • heat from the fluid flowing through the inside of the pipe can be transmitted only to the inner surface of the pipe having a small surface area, and is narrowed down on the inner surface when the outer surface of the pipe is enlarged.
  • the heat transmission amount is to be transmitted to the outside through the pipe material which is a thermal resistor, and the narrowness of the inner surface area of the pipe material has been an impediment to improving the thermal efficiency.
  • a conventional catalyst tube is formed by converging a plurality of regular hexagonal cylindrical tubes, so that a large number of overlapping regions are formed, and is problematic from the viewpoint of space saving and resource saving.
  • the present invention was created in view of the above-mentioned problems, and while suppressing pressure loss to a high degree, increasing the amount of heat transmitted through the peripheral surface of the cylindrical body while omitting the amount of material constituting the cylindrical body and the required occupied volume.
  • An object of the present invention is to provide a heat exchange tube capable of shortening the time required for heat exchange without causing an increase in the length of the cylindrical body, that is, a heat exchange distance, and thereby allowing heat exchange to be performed with high efficiency. To do.
  • Another object of the present invention is to provide a catalytic reaction tube capable of improving the catalytic reaction efficiency while saving space and resources.
  • the means adopted by the variable cylindrical body of the present invention is that an appropriate material is formed into a cylindrical shape, and the inner periphery of a cross section orthogonal to the axial direction at an arbitrary position in the axial direction. It is characterized in that the cross-sectional areas of the inner space surrounded by the same are almost equal everywhere, and the circumferential lengths at two or more different positions in the axial direction are different from each other.
  • the shortest circumferential region has the shortest circumferential region set to the shortest circumferential length
  • the longest circumferential region has the longest circumferential region set to the longest circumferential length
  • the distance of the long circumference region is set longer than the distance of the short circumference region.
  • the cross-sectional shape in the axial direction is characterized by being continuously deformed along the axial direction.
  • the cross-sectional shape at least on one end side in the axial direction is circular, and the cross-sectional shape is deformed into a substantially oval shape or a substantially oval shape toward the other end side, and the eccentricity is 0 to 1 It is characterized by having an inner peripheral surface shape that continuously approaches toward the surface.
  • the cross-sectional shape at both ends in the axial direction is circular, and the cross-sectional shape is deformed into a substantially oval or a substantially elliptical shape toward the center in the axial direction, and the eccentricity is from 0 to 1. It is characterized by having an inner peripheral surface shape that approaches continuously.
  • the cross-sectional shape of the cylindrical body has a portion that forms a substantially fractal plan view shape.
  • a rectifying unit is provided on the inner peripheral surface, the rectifying unit is provided in a transition region in a process of transition from the shortest peripheral region to the longest peripheral region, and the rectifying unit is further provided in the peripheral surface of the process region. It is characterized by being formed by projecting from the inside toward the inside. Further, the rectifying unit is formed by fixing a separate member on the inner peripheral surface.
  • a heat sink is provided on the outer peripheral surface.
  • the cross-sectional shape is continuously changed in the axial direction, and the circumferential length is
  • the circumferential length is By providing a relatively small region and a region having a relatively long circumference, it is possible to flow the fluid flowing through the inside of the cylindrical body with little compression, but a region having a long circumference is set.
  • most of the fluid can be brought into contact with the inner peripheral surface of the cylindrical body, thereby significantly improving the heat exchange efficiency between the cylindrical body and the circulating fluid, or by the catalyst contacting the catalyst layer. Reaction efficiency can be improved.
  • the cylindrical body of the invention While reducing the required occupied volume, the surface area of the inner peripheral surface or the outer peripheral surface can be remarkably increased, and the distance can be reduced.
  • the surface area of the inner peripheral surface or the outer peripheral surface of the cylindrical body of the present invention is remarkably increased. I can do it.
  • the heat exchange amount or the catalytic reaction amount can be improved in spite of the fact that the flow distance is shortened and the time is shortened. .
  • FIG. 1 schematically shows an embodiment of a variable cylindrical body 1 according to the present invention as a three-sided view.
  • the variable cylindrical body 1 of the present embodiment is a copper tube formed in a cylindrical shape for the purpose of heat exchange, but of course the constituent materials and applications are not limited to these, for example, the inner circumference
  • a catalyst layer may be provided on the surface layer of the surface to contribute to the catalytic reaction.
  • variable cylindrical body 1 of the present embodiment is the longest circumferential length formed in a cylindrical shape with an appropriate thickness and an appropriate inner diameter from one end S.
  • the shortest first shortest peripheral region 2 and the end E1 of the first shortest peripheral region 2 are set as the starting end S1, the internal cross-sectional areas of all the cross sections are equally constant, and the eccentricity is 0 from the axial direction.
  • the first transition region 3 having an elliptical cross-sectional shape that continuously transitions toward the end toward 1 and the end E2 as a start end S2 are extended in the axial direction with a constant cross-sectional shape and set to the longest circumference.
  • the internal space cross-sectional area surrounded by the material constituting the variable cylindrical body 1 in an arbitrary cross section of the variable cylindrical body 1 is set to be equal throughout.
  • an arbitrary position in the axial direction of the variable cylindrical body 1 is i
  • an internal space cross-sectional area at this position i is S i
  • an arbitrary position in the axial direction different from the position i is j
  • an internal space at this position j The cross-sectional area is S j
  • a certain position in the axial direction is m
  • the circumferential length of the inner circumferential surface at this position m is C m
  • the certain position in the axial direction different from the position m is n
  • the inner circumferential surface at this position n when the circumferential length of the the C n
  • S i S j ⁇ C m ⁇ C n (m ⁇ n ⁇ i ⁇ j) holds.
  • FIG. 2A shows each of the first shortest peripheral region 2, the first transition region 3, the longest peripheral region 4, the second transition region 5, and the second shortest peripheral region 5 of the variable cylindrical body 1.
  • FIG. 2B is a diagram showing the internal cross-sectional shape of each cross section corresponding to those positions.
  • FIG. 2B each internal cross section AA ′, BB ′, CC ′, DD ′, EE ′, FF ′, GG ′, HH.
  • ', II', JJ ', and KK' are all equivalent to each other.
  • the variable cylindrical body 1 of the present embodiment is configured as described above.
  • the gas phase fluid is represented as a plurality of fluxes F (FIG. 3A).
  • FIG. 3 in the first shortest peripheral region 2 (or the second shortest peripheral region 6) having a circular cross-sectional shape, the flux that is in contact with the inner peripheral surface of the first shortest peripheral region 2 F is only a very small part of the entire flux F.
  • the longest circumferential region 4 shown in FIG. 3B all the fluxes F are in contact with the inner circumferential surface of the longest circumferential region 4. ing.
  • the surface area of the inner peripheral surface is larger in the region where the circumferential length is longer than the region where the sectional area is the same but the circumferential length is different and the circumferential length is short.
  • the specific surface area can be set significantly larger than that of the cylindrical body.
  • variable cylindrical body 1 when a fluid is allowed to pass through the inside of the variable cylindrical body 1, the pressure loss can be suppressed as much as possible, and the fluid can flow down almost uncompressed. More fluid molecules can be brought into contact with each other, and the heat exchange efficiency and the catalytic reaction efficiency can be remarkably improved.
  • the cross-sectional shape of the variable cylindrical body 1 of the present embodiment is configured such that one end forming a circular shape transitions to an elliptical shape from the center to the axial center, and then changes to a circular shape from the center to the other end again.
  • the cross-sectional shape is not limited to this, and for example, as shown in FIG. 4, the end E ′ of the variable cylindrical body 11 may be a shape that is a square and gradually transitions to an elongated rectangle. is there.
  • a part of the axial direction may have a portion having a substantially fractal shape as shown in FIG. 5, and in this case, the internal cross-sectional area in the cross-section is set to a finite constant size.
  • the circumference can be made extremely large. This is due to the fact that a planar fractal closed figure has a finite area, but its perimeter is greater than any positive constant K.
  • the planar shape of the variable cylindrical body of the present invention is not only a monotonous shape as shown in FIG. 1 (a), but also a curved portion with a constricted center as in the variable cylindrical body 101 shown in FIG. Can be configured in a closed figure shape, and can be set to a closed figure formed by a combination of arbitrary curves and straight lines. From these meanings, it can be said that there are an infinite number of shapes that can be taken by the variable cylindrical body of the present invention.
  • a flow regulating body such as a flow straightening plate or a flow straightening strip may be provided at an appropriate portion inside the variable cylindrical body, and the fluid flowing through the inside may be flow straightened. In this case, it is particularly effective to form in the transition region.
  • the present invention is not limited to this and can be formed at a desired site.
  • the rectifying body 7 may be recessed from the upper and lower outer peripheral surfaces of the variable diameter cylindrical body 201 toward the inside, and may be projected in a strip shape.
  • the rectifying body 7 is provided, the surface area inside the variable diameter cylindrical body 201 can be increased, so that the heat exchange efficiency and the catalytic reaction efficiency can be further improved.
  • the fluid production 7 a may be provided separately on the inner peripheral surface of the variable cylindrical body 301 as previously formed separately.
  • the variable diameter cylindrical body 301 not only rectifies the fluid flowing down inside, but also has an effect of reinforcing the variable diameter cylindrical body 301.
  • a heat sink 8 is provided on the outer peripheral surface of the variable cylindrical body 401 to further increase the heat exchange efficiency. Is also possible. Of course, in this case, the heat sink 8 also has an effect of reinforcing the variable diameter cylindrical body 401.
  • variable cylindrical body of the present invention circulates the inside by forming the shape with a changed circumferential length while setting the internal cross-sectional area of every cross section equal.
  • the configuration is such that the number of contact molecules with the inner peripheral surface of the fluid is increased without substantially compressing the fluid, and can be implemented in various forms without departing from the gist thereof.
  • FIG. 1 It is a three-view figure which shows one Embodiment, Comprising: (a) is a top view, (b) is a front view, (c) is a side view. It is a schematic diagram showing that the internal cross-sectional area of an arbitrary cross section of the variant cylindrical body is constant and the circumference is not constant, and (a) shows an appropriate cross-sectional position in the plan view of FIG. (B) is a diagram showing the internal cross-sectional shape of each cross section indicated in (a) at a position corresponding to the indicated position in (a).
  • FIG. 3 is a partially enlarged perspective view of a variable cylindrical body having an end shape forming a square cylindrical shape and gradually transitioning from a terminal end to a cross-sectional shape forming a rectangular cylindrical shape.
  • SYMBOLS 1 Change cylindrical body 2 1st shortest circumference area 3 1st transition area 4 longest circumference area 5 2nd transition area 6 2nd shortest circumference area 7 Rectifier 7a Fluid 8 Heat sink 11 Variable circumference cylindrical body DESCRIPTION OF SYMBOLS 101 Variable cylindrical body 201 Variable cylindrical body 301 Variable cylindrical body 401 Variable cylindrical body S One end E1 Termination S1 Start end E2 Termination S2 Start end E3 Termination S3 Start end E4 Termination S4 Start end E5 Termination E Other end F Flux E 'end

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Geometry (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)

Abstract

La présente invention concerne un tube d'échange de chaleur ou un tube de réaction catalytique pouvant effectuer un échange de chaleur et une réaction catalytique extrêmement efficaces en augmentant la superficie de la surface circonférentielle interne d'un corps tubulaire tout en économisant la quantité de matériau constitutif d'un corps tubulaire et un volume occupé requis et en réduisant la durée requise pour l'échange de chaleur sans augmenter la distance d'échange de chaleur. La présente invention concerne de manière spécifique un corps tubulaire de circonférence variable (1) qui est formé de façon à différencier les unes des autres les longueurs circonférentielles à deux emplacements différents ou plus le long de la direction axiale tandis que les surfaces transversales de l'espace interne entouré des circonférences internes des sections transversales perpendiculaires à la direction axiale à un quelconque emplacement en option dans la direction axiale sont presque égales. Le nombre de molécules du fluide qui entrent en contact avec la surface circonférentielle interne peut être accru presque sans comprimer le fluide s'écoulant à l'intérieur du corps tubulaire de circonférence variable.
PCT/JP2010/060981 2010-06-28 2010-06-28 Corps tubulaire de circonférence variable WO2012001759A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
PCT/JP2010/060981 WO2012001759A1 (fr) 2010-06-28 2010-06-28 Corps tubulaire de circonférence variable
KR1020127033592A KR20130088758A (ko) 2010-06-28 2010-06-28 변주통상체
JP2012522365A JPWO2012001759A1 (ja) 2010-06-28 2010-06-28 変周筒状体

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2010/060981 WO2012001759A1 (fr) 2010-06-28 2010-06-28 Corps tubulaire de circonférence variable

Publications (1)

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WO2012001759A1 true WO2012001759A1 (fr) 2012-01-05

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PCT/JP2010/060981 WO2012001759A1 (fr) 2010-06-28 2010-06-28 Corps tubulaire de circonférence variable

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JP (1) JPWO2012001759A1 (fr)
KR (1) KR20130088758A (fr)
WO (1) WO2012001759A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3674531A1 (fr) * 2018-12-24 2020-07-01 Safran Aero Boosters SA Échangeur de chaleur air-huile
US20220074670A1 (en) * 2018-12-26 2022-03-10 Zhejiang Dunan Artificial Environment Co., Ltd. Flat Tube and Heat Exchanger
JP7467192B2 (ja) 2020-03-25 2024-04-15 三菱重工業株式会社 ガス状生成物を得るための装置およびガス状生成物を得るための方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57190282U (fr) * 1981-05-22 1982-12-02
JPH11173782A (ja) * 1997-12-10 1999-07-02 Calsonic Corp 熱交換器用チューブ
JP3192622B2 (ja) * 1997-11-06 2001-07-30 株式会社日本アルミ ヒートパイプ式ヒートシンク
JP2002350081A (ja) * 2001-05-25 2002-12-04 Maruyasu Industries Co Ltd 多管式熱交換器
JP2008051375A (ja) * 2006-08-23 2008-03-06 T Rad Co Ltd 熱交換器の製造方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57190282U (fr) * 1981-05-22 1982-12-02
JP3192622B2 (ja) * 1997-11-06 2001-07-30 株式会社日本アルミ ヒートパイプ式ヒートシンク
JPH11173782A (ja) * 1997-12-10 1999-07-02 Calsonic Corp 熱交換器用チューブ
JP2002350081A (ja) * 2001-05-25 2002-12-04 Maruyasu Industries Co Ltd 多管式熱交換器
JP2008051375A (ja) * 2006-08-23 2008-03-06 T Rad Co Ltd 熱交換器の製造方法

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3674531A1 (fr) * 2018-12-24 2020-07-01 Safran Aero Boosters SA Échangeur de chaleur air-huile
BE1026919B1 (fr) * 2018-12-24 2020-07-24 Safran Aero Boosters Sa Échangeur de chaleur air-huile
US11619169B2 (en) 2018-12-24 2023-04-04 Safran Aero Boosters Sa Air-oil heat exchanger
US20220074670A1 (en) * 2018-12-26 2022-03-10 Zhejiang Dunan Artificial Environment Co., Ltd. Flat Tube and Heat Exchanger
JP7467192B2 (ja) 2020-03-25 2024-04-15 三菱重工業株式会社 ガス状生成物を得るための装置およびガス状生成物を得るための方法

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KR20130088758A (ko) 2013-08-08

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