WO2013005333A1 - Procédé de fabrication d'un échangeur de chaleur multi-tubulaire et échangeur de chaleur multi-tubulaire - Google Patents

Procédé de fabrication d'un échangeur de chaleur multi-tubulaire et échangeur de chaleur multi-tubulaire Download PDF

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Publication number
WO2013005333A1
WO2013005333A1 PCT/JP2011/065627 JP2011065627W WO2013005333A1 WO 2013005333 A1 WO2013005333 A1 WO 2013005333A1 JP 2011065627 W JP2011065627 W JP 2011065627W WO 2013005333 A1 WO2013005333 A1 WO 2013005333A1
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WO
WIPO (PCT)
Prior art keywords
heat transfer
partition plate
tube
heat exchanger
tubes
Prior art date
Application number
PCT/JP2011/065627
Other languages
English (en)
Japanese (ja)
Inventor
谷川茂利
Original Assignee
株式会社Cku
シーアイ化成株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社Cku, シーアイ化成株式会社 filed Critical 株式会社Cku
Priority to PCT/JP2011/065627 priority Critical patent/WO2013005333A1/fr
Publication of WO2013005333A1 publication Critical patent/WO2013005333A1/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
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/04—Arrangements for sealing elements into header boxes or end plates
    • F28F9/16—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling
    • F28F9/18—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling by welding
    • 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
    • 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
    • F28D7/16—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 arranged in parallel spaced relation

Definitions

  • the present invention relates to a heat exchanger that allows a second fluid to flow around the outer periphery of a plurality of heat transfer tubes so that heat exchange can be performed with the first fluid flowing through the heat transfer tubes.
  • the present invention relates to a heat exchanger in which a large number of heat transfer tubes can be provided by devising a partition plate provided between headers and the gaps between the heat transfer tubes can be made uniform.
  • a multi-tube heat exchanger (shell-and-tube heat exchanger) has been proposed as a heat exchanger for cooling a fluid flowing in a heat transfer tube (see Patent Document 1 to Patent Document 4). .
  • reference numerals 91L and 91R are headers provided on the left and right sides
  • reference numeral 92 is a heat transfer tube provided between the left and right headers 91L and 91R, which is the first fluid along the axial direction. It is intended to pass through.
  • Partition plates 94 are provided at both ends of the heat transfer tube 92, and the left and right headers 91L and 91R are isolated by the partition plate 94.
  • Reference numeral 93 denotes a chamber divided by left and right partition plates 94, and allows the second fluid to pass from the inlet 95 to the outlet 96.
  • the 1st fluid when cooling the 1st fluid which passes the inside of the heat exchanger tube 92 using such a heat exchanger, the 1st fluid is made to flow in from one header 91L, and the other header 91R is passed through the heat exchanger tube 92. To the side.
  • the second fluid is introduced from the inlet 95 of the chamber 93, exchanges heat through the outer surface of the heat transfer tube 92, and is discharged from the outlet 96.
  • a multi-tube heat exchanger when a multi-tube heat exchanger is manufactured, a plurality of heat transfer tubes are prepared, and holes for passing the heat transfer tubes through the partition plate are formed in accordance with the outer diameter of the heat transfer tubes.
  • the hole is formed so that as many heat transfer tubes as possible can be passed, and the gap between the heat transfer tube and the heat transfer tube can be made uniform.
  • the heat transfer tube is passed through the hole of the partition plate, the gap is welded or brazed, and this is inserted into a hollow casing or the like to insert the header space, inlet or outlet Attach etc.
  • the present invention has been made paying attention to the above problems, and by devising the partition plate of the multi-tube heat exchanger, it is possible to provide as many heat transfer tubes as possible, and each heat transfer tube. It is an object of the present invention to provide a multitubular heat exchanger and a method for manufacturing the same, in which the gap between the heat transfer tube and the heat transfer tube can be made constant.
  • the present invention is surrounded by a plurality of heat transfer tubes through which the first fluid passes, a partition plate provided on both ends of the heat transfer tube, and left and right partition plates.
  • a method of manufacturing a multi-tube heat exchanger comprising a chamber and a header provided on an end side of the heat transfer tube, a plurality of ring members into which the heat transfer tube can be inserted are provided, and the ring A partition plate is formed by filling a gap between the member and the ring member, and the heat transfer tube is inserted into the formed partition plate to form a header and a chamber.
  • the gap between the heat transfer tubes can be made uniform. Further, by reducing the thicknesses of the inner and outer diameters of the ring member, the gap between the heat transfer tubes can be narrowed, and many heat transfer tubes can be attached.
  • a plurality of tubes into which heat transfer tubes can be inserted are prepared, a gap between the tubes is filled, and the filled tube is cut in a direction transverse to the axial direction to form a partition plate Form.
  • a plurality of tubes into which heat transfer tubes can be inserted are provided, the tubes are cut in a direction transverse to the axial direction to form a ring member, and a gap is formed between the ring member and the ring member to form a partition plate You can also do it.
  • a mark is provided for matching the position of the ring member on each partition plate, and after aligning the marks, the two partition plates are overlapped to transmit the heat transfer tube.
  • the heat pipe is inserted, and one partition plate is slid to the other end side of the heat transfer pipe.
  • the holes of the partition plate can be aligned and the heat transfer tube can be easily It can be inserted.
  • a plurality of heat transfer tubes through which the first fluid passes a partition plate provided on both ends of the heat transfer tube, a chamber surrounded by the left and right partition plates, and the heat transfer tube
  • a plurality of ring members into which the heat transfer tubes can be inserted are provided, and a gap between the ring member and the ring member is provided.
  • the partition plate was formed by filling the hole, and the heat transfer tube was inserted into the formed partition plate to form the header and the chamber, the partition plate was created by brazing the ring member through the heat transfer tube The hole-drilling process at the time becomes unnecessary, and the gap between the heat transfer tubes can be made uniform by passing the heat transfer tubes through the partition plates arranged in close contact with the ring members. Further, by reducing the thicknesses of the inner and outer diameters of the ring member, the gap between the heat transfer tubes can be narrowed, and many heat transfer tubes can be attached.
  • the multitubular heat exchanger 1 in this embodiment is configured such that a second fluid is brought into contact with the first fluid flowing in the heat transfer tube 2 from the outside of the heat transfer tube 2. Heat exchange can be performed with the first fluid.
  • An inflow portion 43 and a discharge portion 44 for allowing the second fluid to flow in and out are configured.
  • the partition plate 3 is connected to a plurality of ring members 31a (see FIG.
  • the heat transfer tube 2 in the multi-tube heat exchanger 1 is composed of a metal pipe having a high thermal conductivity that allows the first fluid to pass inside. It is composed of a very thin pipe with an inner diameter of about 1.3 mm.
  • the central portion of the heat transfer tube 2 is provided in the chamber 40 sealed by the partition plate 3 and the body portion 4, while the left and right end portions are sealed by the partition plate 3 and the header cover 5.
  • the header 50 is provided.
  • drum 4 the inflow part 43 for making a 2nd fluid flow in is provided in the upper side of the one end side of the heat exchanger tube 2, and the lower side in the other end side of the heat exchanger tube 2 is provided. Is provided with a discharge portion 44 for discharging the second fluid.
  • the body 4 may be a cylindrical body that can insert the bundled heat transfer tubes 2 in the axial direction, or, as shown in FIG. 2, the body element divided along the longitudinal direction. You may comprise so that 41a and 41b may be made to oppose and weld.
  • a semicircular cutout portion 42 for attaching the inflow portion 43 and the discharge portion 44 is provided in advance, and the semicircular cutout portion 42 has a cylindrical shape.
  • the inflow portion 43 and the discharge portion 44 are brazed.
  • the contact portion with the partition plate 3 is brazed so that the first fluid and the second fluid do not leak.
  • the header 50 is for allowing the first fluid to flow into or out of the end portion of the heat transfer tube 2 protruding from the partition plate 3, and is provided with a hole for attaching the inflow portion 51 or the discharge portion 52.
  • a tubular inflow portion 51 and a discharge portion 52 are attached to the holes.
  • an opening for closing the space of the header 50 on the other side is provided by the circular partition plate 3, and the partition plate 3 is inscribed in the opening to be welded. I have to.
  • the end of the heat transfer tube 2 is projected from the partition plate 3, but the end of the heat transfer tube 2 and the surface of the partition plate 3 may be flush with each other. Good.
  • the partition plate 3 plays the role which partitions off the header 50 and the chamber 40, and plays the role which forms a clearance gap uniformly in the state which made the clearance gap between each heat exchanger tube 2 small. It is structured as follows.
  • the partition plate 3 is provided with a ring member 31a that can be inserted in a state in which the heat transfer tube 2 is inscribed. (That is, the gap between the ring member 31a and the ring member 31a) is brazed.
  • the ring member 31a is made of a metal member having an outer diameter (diameter) of about 2.0 mm and an inner diameter (diameter) of about 1.6 mm (thickness is 0.2 mm), and has an axial thickness. Is set to a thickness dimension having a welding allowance that can withstand the pressure of the chamber 40 or the header 50 and can weld the body 4 and the header cover 5 to the periphery.
  • the brazing material 32 for brazing a material containing powder of silver, aluminum, phosphor copper, lead, or the like is used, and the gap can be enclosed by enclosing it in the gap of the ring member 31a and heating. I am doing so.
  • this brazing material 32 is put into the gap of the ring member 31a, for example, a disk-shaped brazing material having holes corresponding to the holes of the ring member 31a is placed on the bundled ring member 31a. By melting, it is allowed to penetrate into the narrow gap by capillary action. Further, since the brazing material 32 is relatively expensive, as shown in FIG.
  • a wire or a wire 33 having a shape filling the gap is provided in the triangular gap between the ring member 31a and the ring member 31a.
  • the brazing material 32 may be injected in a state in which is reduced.
  • the wire 33 may be of such a size that it can be inserted into the gap with the ring members 31a in close contact with each other, or when it is desired to widen the gap between the ring members 31a, the wire 33 may be thickened to widen the gap between the ring members 31a.
  • a plurality of tubes 31 into which the heat transfer tubes 2 can be inserted are prepared, and the plurality of tubes 31 are bundled so as to be in close contact with each other.
  • the second row of tubes 31 is placed in the valley of the first row of tubes 31 arranged in close contact with each other. (FIG. 4 (a)).
  • the pipes 31 bundled in this way are accommodated in a cylindrical body 36 having an outer diameter that can be accommodated in the body 4, and a gap between each pipe 31 and the pipe 31 and a gap between the pipe 31 and the cylindrical body 36.
  • the brazing material 32 is injected, and if necessary, the wire material 33 is inserted into the gap to inject the brazing material 32.
  • the wire 33 is abbreviate
  • the brazing material 32 is melted and filled with high heat to form a bundle of circular tubes 31 as a whole (FIG. 4B).
  • brazing material 32 When injecting the brazing material 32 into the gap between the elongated tube 31 and the tube 31, it is difficult to infiltrate the brazing material 32 deeply into the gap. It is also possible to insert the brazing material 32 into the gap between the pipe 31 and the gap between the pipe 31 and the pipe 31 to fill the gap.
  • the mark 34 along the axial direction is put on the side surface so that the bundle of the tube 31 crosses the axial direction (preferably Are cut in a right angle direction to form the partition plate 3 (FIG. 4C).
  • the bundle of tubes 31 previously bundled (FIG. 5A) is perpendicular to the axial direction. Then, the bundle of the cut pipes 31 (ring members 31a) is set inside the cylindrical body 36, and the gap between the pipes 31 and 31 and the pipes 31 and cylinders are set.
  • the brazing material 32 may be injected into the gaps of the shaped bodies 36 and brazed (FIG. 5C). When this brazing is performed, similarly, a disk-shaped brazing material having a hole corresponding to the hole of the ring member 31a is placed on the tube 31 bundled by the cylindrical body 36, and this is melted.
  • the gap between the pipe 31 and the pipe 31 is brazed.
  • the brazing material 32 can be reliably inject
  • the method of cutting after brazing the whole like the former is used, the arrangement state of the tubes 31 will not be destroyed in the cutting process, and then the holes of the tubes 31 are surely aligned and the heat transfer tubes There is a merit that 2 can be inserted. For this reason, it is preferable to select and use one of the merits as appropriate for selecting any one of these manufacturing methods.
  • the heat transfer tube 2 is passed through the partition plate 3 configured in this way (FIG. 3).
  • the marks 34 provided on the side surfaces of the partition plate 3 are matched to overlap the two partition plates 3, and the heat transfer tube 2 is passed inside the tube 31 in this state.
  • the heat transfer tube 2 is inserted into the tube 31 using a jig 35 as shown in FIG. 6. May be.
  • the jig 35 has the same outer diameter as that of the tube 31 and the inner diameter is made larger as it goes upward.
  • the jig 35 is brought into close contact with the tube 31 and brazed. .
  • the outer diameter dimensions it is possible to insert the heat transfer tube 2 into the tube 31 by inserting the heat transfer tube 2 from the upper portion having a larger inner diameter size, and the same arrayed body as the cut tubes 31. I have to.
  • the inflow chamber 43 sealed with the partition plate 3 and the trunk 4 is formed by attaching the inflow section 43 and the discharge section 44 for allowing the fluid to flow in and out.
  • the header cover 5 is attached to the partition plates 3 on both sides, the gap between the header 50 and the partition plate 3 is brazed, and finally, an inflow portion 51 for allowing the first fluid to flow into and out of the left and right ends, and The discharge part 52 is attached.
  • the clearance gap of the heat exchanger tube 2 can be made small, many heat exchanger tubes 2 can be provided, and also each clearance gap can be made uniform. Become.
  • the partition plates 3 provided on both ends of the heat transfer tubes 2, and the left and right partition plates 3.
  • a plurality of 31a are provided, and a gap between the ring member 31a and the ring member 31a is filled with a brazing material 32 to form the partition plate 3, and the heat transfer tube 2 is inserted into the formed partition plate 3 to fill the gap. Since the partition plate 3 is configured, a hole forming step is not required when creating a partition plate as in the prior art.
  • the clearance gap between the heat exchanger tubes 2 can be made uniform by letting the heat exchanger tubes 2 pass through the partition plates 3 arranged in close contact with the ring members 31a. Furthermore, by reducing the thickness of the inner diameter and the outer diameter of the ring member 31a, the gap between the heat transfer tube 2 and the heat transfer tube 2 can be narrowed, and many heat transfer tubes 2 can be attached.
  • the partition plate 3 When the partition plate 3 is formed, a plurality of pipes 31 into which the heat transfer pipes 2 can be inserted are provided, a gap between the pipes 31 and 31 is filled with a brazing material 32, and the filled pipes 31 are connected to the shaft 31. Since the partition plate 3 is formed by cutting in a direction perpendicular to the direction, a large amount of the partition plate 3 can be formed at a time by cutting the tube 31. Moreover, since it cut
  • the brazing material 32 is surely formed. Can be injected into the gap.
  • a mark 34 for matching the position of the tube 31 is provided, and after aligning the position of the mark 34, the two partition plates 3 are overlapped to form the heat transfer tube 2. Since one of the partition plates 3 is slid to the other end side of the heat transfer tube 2, it is easy to align the two partition plates 3 after cutting, and the heat transfer tube 2 can be easily inserted. Will be able to.
  • the second fluid is allowed to flow through the outer peripheral portion of the heat transfer tube 2 to cool the first fluid of the heat transfer tube 2, but the inner heat transfer tube is further provided inside the heat transfer tube 2.
  • a third fluid may be passed through the inner heat transfer tube to exchange heat with the first fluid from the inside and outside.
  • drum 4 and the header cover 5 were provided and the header 50 and the chamber 40 were formed, one cylindrical member was used. It may be provided, and the partition plate 3 and the heat transfer tube 2 may be inserted therein to close both ends.
  • the inner diameter of the ring member 31a and the inner diameter of the heat transfer tube 2 are set to be substantially the same.
  • a slight gap is provided so that the insertion work can be performed easily, and then the gap is brazed. It may be.

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

Abstract

L'invention concerne les échangeurs de chaleur. L'invention a pour but de réaliser autant de tubes d'échangeur de chaleur que possible et d'obtenir des écarts constants entre les tubes de transfert de chaleur en réalisant une plaque de cloisonnement d'un échangeur de chaleur multi-tubulaire. A cet effet, l'invention concerne un procédé de fabrication d'un échangeur de chaleur multi-tubulaire (1) possédant de multiples tubes de transfert de chaleur (2) servant à faire circuler un premier fluide, une plaque de cloisonnement (3) disposée aux deux extrémités des tubes de transfert de chaleur (2), une chambre (40) enfermée par les plaques de cloisonnement gauche et droite (3) et un collecteur (50) formé des plaques de cloisonnement gauche et droite (3) sur le côté terminal des tubes d'échangeur de chaleur (2), dans lequel sont agencés des tubes (31) dans lesquels peuvent être insérés des tubes de transfert de chaleur (2) assemblés en faisceaux et coupés, et de multiples éléments annulaires (31a). Ensuite, une matière de brasure (32) est injectée dans les espaces desdits éléments annulaires (31a) et un brasage est exécuté, puis les tubes de transfert de chaleur (2) sont insérés dans les éléments annulaires (31a) pour remplir les espaces libres, en formant ainsi la plaque de cloisonnement (3).
PCT/JP2011/065627 2011-07-07 2011-07-07 Procédé de fabrication d'un échangeur de chaleur multi-tubulaire et échangeur de chaleur multi-tubulaire WO2013005333A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2011/065627 WO2013005333A1 (fr) 2011-07-07 2011-07-07 Procédé de fabrication d'un échangeur de chaleur multi-tubulaire et échangeur de chaleur multi-tubulaire

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2011/065627 WO2013005333A1 (fr) 2011-07-07 2011-07-07 Procédé de fabrication d'un échangeur de chaleur multi-tubulaire et échangeur de chaleur multi-tubulaire

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WO2013005333A1 true WO2013005333A1 (fr) 2013-01-10

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Application Number Title Priority Date Filing Date
PCT/JP2011/065627 WO2013005333A1 (fr) 2011-07-07 2011-07-07 Procédé de fabrication d'un échangeur de chaleur multi-tubulaire et échangeur de chaleur multi-tubulaire

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR892980A (fr) * 1942-04-09 1944-05-25 Ig Farbenindustrie Ag échangeur de chaleur tubulaire
FR1135923A (fr) * 1954-08-30 1957-05-06 Standard Thomson Corp Perfectionnements apportés aux noyaux d'échangeurs de chaleur et à leur procédéde fabrication

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR892980A (fr) * 1942-04-09 1944-05-25 Ig Farbenindustrie Ag échangeur de chaleur tubulaire
FR1135923A (fr) * 1954-08-30 1957-05-06 Standard Thomson Corp Perfectionnements apportés aux noyaux d'échangeurs de chaleur et à leur procédéde fabrication

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