[go: up one dir, main page]

US3353250A - Method for manufacturing a heat exchanger - Google Patents

Method for manufacturing a heat exchanger Download PDF

Info

Publication number
US3353250A
US3353250A US354383A US35438364A US3353250A US 3353250 A US3353250 A US 3353250A US 354383 A US354383 A US 354383A US 35438364 A US35438364 A US 35438364A US 3353250 A US3353250 A US 3353250A
Authority
US
United States
Prior art keywords
core
heat exchanger
support ring
core metal
winding
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
US354383A
Other languages
English (en)
Inventor
Kikuchi Wahei
Watanabe Masatoshi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Application granted granted Critical
Publication of US3353250A publication Critical patent/US3353250A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/02—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being helically coiled
    • F28D7/024—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being helically coiled the conduits of only one medium being helically coiled tubes, the coils having a cylindrical configuration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00—Making other particular articles
    • B21D53/02—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers
    • B21D53/027—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers by helically or spirally winding elongated elements
    • 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
    • F28F9/007—Auxiliary supports for elements
    • F28F9/013—Auxiliary supports for elements for tubes or tube-assemblies
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/4935—Heat exchanger or boiler making
    • Y10T29/49362—Tube wound about tube

Definitions

  • the present invention relates to a method of manufacturing a heat exchanger.
  • Hampson heat exchangers are illustrated in the patents to Hampson, No. 1,896,080 and 1,896,081.
  • This type of heat exchanger may comprise a heat conducting tube made of thin copper tube and wound about a core metal 20 to 50 times through spacers.
  • a heat exchanger of a very large length in comparison with the coil diameter is made, there are many difficulties in designing and manufacturing. In other words, with a heat exchanger as long as 7 in.
  • the core metal has to be made considerably thick or the heat exchanger itself has to be divided into two parts so as to keep the flexure of the exchanger owing to its own weight during winding of the heat conducting tube under a certain value.
  • An example of a wound heat exchanger that is wound in two parts and subsequently connected together by soldered sleeves (15) is found in the patent to Giauque, Patent 2,508,247, issued May 16, 1950.
  • This patent also illustrates the above mentioned spacers 14 that are used when the heat exchanger tube is wound in multiple layers; also, this patent illustrates the manifold 19 for connecting the tubes of the multiple layers together. Accordingly the whole plant, as well as the heat exchanger itself becomes very large in size, and construction cost and other expenses rise in the manner of a geometric progression.
  • the present invention provides a method of manufacturing a heat exchanger in which the diameter of a core metal can be determined not from the viewpoint of strength but from the viewpoint of heat conducting efiiciency.
  • a heat exchanger made by this method uses a support ring which has a proper number of notches through which a heat conducting tube passes and supports a core metal at one or more points except at the two ends of the metal, and a support table with rollers rotatably supporting the support ring.
  • the method is characterized in the way of winding the heat conducting tube; namely the tube is wound about the core metal through the notches of the support ring as the core metal is supported through the support ring and is rotated together with the support ring.
  • FIGURE 1 illustrates a wound type of prior art heat exchanger with its drum cut away and the tubes partly in section;
  • FIGURE 2 illustrates a wound type heat exchanger that has been made by the method of the present invention
  • FIGURE 3 illustrates a conventional heat exchanger winding apparatus employing the apparatus 6 and 8-10 of the present invention method
  • FIGURE 4 is a front view of the support ring of the present invention taken along line AA of FIGURE 3;
  • FIGURE is a partial view similar to FIGURE 2 illustrating the winding of a heat conducting tube while using the support ring of the present invention.
  • Reference numeral 1 in FIG. 1 is a core metal; 2 and 3,353,250 Patented Nov. 21, 1967 ice 3 are brackets supporting the ends of the core metal 1; 4 is a heat conducting tube; and 5 is a drum.
  • the multiple layers of the coiled heat exchanger tube 4 are held apart from each other by spacers 11 in a conventional manner as shown in the above-mentioned prior art patent to Giauque with spacer strips 14.
  • FIGURE 2 the old elements that per se form no part of the present invention are designated by numerals that are identical to the numerals used in FIGURE 1 so that the features of the present invention may be clearly set apart from the prior art.
  • Numeral 6 indicates a support ring to support the core metal 1 at one or more points except at the two ends of the core metal (in the present embodiment at one point in the central portion of the core metal); 7 indicates notches formed radially in the support ring in order to pass the heat conducting tube 4; and 8 is a support table with two rollers 9 and 10 to rotatably support the support ring 6.
  • FIGURE 3 a prior art heat exchanger winding device 1217 is shown employing the apparatus of the present invention for winding a heat exchanger coil according to the method of the present invention
  • a motor 12 is used to drive the shaft of a suitable chuck 14; the chuck shaft is supported in the bearing 13.
  • the bearing 13 and motor 12 are suitably mounted on a stationary support 16.
  • the chuck 14 is used to hold the bracket 2 and a similar chuck is used to hold the bracket 3.
  • the chuck for the bracket 3 is freely supported in a bearing block 15 that is in turn supported on a stationary support 17.
  • the support ring 6 and its bearing structure 8-10 of the present invention is used with the above described conventional heat exchanger coil winding device to practice the method of the present invention.
  • the core metal 1 and the support ring 6 are made to rotate by a power-driven rotating device as the core metal is supported by the support table 8 with rollers through the support ring 6.
  • the heat conducting tube 4 is wound about the core metal 1 through spacers 11 many times, for example from the right end of the core metal.
  • the heat conducting tube 4 reaches the central portion of the core metal 1, the tube is passed from the right half to the left half of the core metal through one of the notches 7 of the support ring 6 and wound on.
  • winding of a heat conducting tube can be performed as the core metal is supported at one point other than its two ends. Therefore the substantial span of the core metal and thereby the moment of inertia of the core metal can be reduced. That enables use of a core metal of a much smaller diameter, and moreover assures safe and easy performance of winding process of a heat conducting tube.
  • the heat exchanger itself but also the whole plant can be made much smaller in size. And material cost, construction cost and other expenses can be largely cut down. Further, since it is not necessary any more to divide the heat exchanger into two parts, better heat exchanging efiiciency, maintenance and operation can be expected.
  • the portion around the support ring is incompletely wound with the heat conducting tube as indicated in the central portion of FIG. 5. But the substantial length of the portion is only 20 cm. (about 8 inches). Lengthening of the total length by 20 cm. solves the problem.
  • the improvement comprises: supporting the core between its opposite ends by a drivingly connected support ring; supporting the support ring in a bearing for rotation with the core; helically winding the tube first on the core between one end of the core and the support ring; thereafter passing the tube, intermediate its terminal ends, radially through a radially extending outwardly opening slot in the support ring; and thereafter helically winding the tube on the core between the other opposed end of the core and the support ring.

Landscapes

  • 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)
US354383A 1963-04-01 1964-03-24 Method for manufacturing a heat exchanger Expired - Lifetime US3353250A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1614663 1963-04-01

Publications (1)

Publication Number Publication Date
US3353250A true US3353250A (en) 1967-11-21

Family

ID=11908344

Family Applications (1)

Application Number Title Priority Date Filing Date
US354383A Expired - Lifetime US3353250A (en) 1963-04-01 1964-03-24 Method for manufacturing a heat exchanger

Country Status (2)

Country Link
US (1) US3353250A (de)
DE (1) DE1303351B (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3482298A (en) * 1965-10-22 1969-12-09 Gen Motors Corp Method of manufacture of wire fin and tube heat exchangers
US3591910A (en) * 1969-10-22 1971-07-13 Gen Motors Corp Method of manufacture of wire fin and tube heat exchanger
WO1979000944A1 (en) * 1978-04-18 1979-11-15 Elge Verken Ab A method for manufacturing a tube array for a heat exchanger
EP0342959A1 (de) * 1988-05-19 1989-11-23 York International Ltd Wärmetauscher
US6052898A (en) * 1997-05-29 2000-04-25 Westinghouse Air Brake Company Method of winding fluid heater coils
EP3282213A1 (de) * 2016-08-09 2018-02-14 Linde Aktiengesellschaft Verfahren zum bestimmen einer festigkeit eines rohrbündelwärmetauschers und herstellungsverfahren

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4556103A (en) * 1980-09-25 1985-12-03 Nepon Co. Ltd. Heat exchange apparatus with blower and helical conduit system
FR2500144B1 (fr) * 1981-02-16 1986-01-24 Trepaud Georges Perfectionnement aux echangeurs de chaleur a faisceaux de tubes droits ou ondules, notamment aux systemes de supportage des tubes et procede de realisation de ces systemes de supportage
US4573528A (en) * 1981-01-08 1986-03-04 Georges Trepaud Heat exchangers with clusters of straight or corrugated tubes, especially to systems for supporting the tubes at fixed and movable axial levels
US4732590A (en) * 1987-01-28 1988-03-22 Mcneil John A Flash economizer

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US553105A (en) * 1896-01-14 Can-opener
US2231295A (en) * 1938-03-07 1941-02-11 Sirius Corp Power plant boiler system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US553105A (en) * 1896-01-14 Can-opener
US2231295A (en) * 1938-03-07 1941-02-11 Sirius Corp Power plant boiler system

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3482298A (en) * 1965-10-22 1969-12-09 Gen Motors Corp Method of manufacture of wire fin and tube heat exchangers
US3591910A (en) * 1969-10-22 1971-07-13 Gen Motors Corp Method of manufacture of wire fin and tube heat exchanger
WO1979000944A1 (en) * 1978-04-18 1979-11-15 Elge Verken Ab A method for manufacturing a tube array for a heat exchanger
EP0342959A1 (de) * 1988-05-19 1989-11-23 York International Ltd Wärmetauscher
US6052898A (en) * 1997-05-29 2000-04-25 Westinghouse Air Brake Company Method of winding fluid heater coils
EP3282213A1 (de) * 2016-08-09 2018-02-14 Linde Aktiengesellschaft Verfahren zum bestimmen einer festigkeit eines rohrbündelwärmetauschers und herstellungsverfahren
CN107704645A (zh) * 2016-08-09 2018-02-16 林德股份公司 测定管束式热交换器的强度的方法及其制造方法
RU2696527C2 (ru) * 2016-08-09 2019-08-02 Линде Акциенгезельшафт Способ определения жесткости теплообменника с пучком труб и способ его изготовления
US10592621B2 (en) 2016-08-09 2020-03-17 Linde Aktiengesellschaft Method for determining a strength of a tube bundle heat exchanger, and production method

Also Published As

Publication number Publication date
DE1303351B (de)

Similar Documents

Publication Publication Date Title
US3353250A (en) Method for manufacturing a heat exchanger
US3391041A (en) Process of making a plastic tube bundle for heat exchange
GB1596181A (en) Field windings for dynamoelectric machines and their manuf
CN101214523A (zh) 一种超长护套弹簧的自动绕制方法
US2519219A (en) Rotor construction for induction motors
US3602027A (en) Simultaneous finning and reforming of tubular heat transfer surface
KR860006814A (ko) 토로이달 트랜스포머용 저압권선 제조장치 및 방법
US2327687A (en) Method of making deep well screens
US4351092A (en) Method of fabrication of coreless hollow filament separatory module
US4381592A (en) Method of producing helically wound spine fin heat exchanger
ES463597A1 (es) Perfeccionamientos en los aparatos de fabricacion de inter- cambiadores de calor.
CN111312511A (zh) 一种跑道型超导线圈绕制装置及绕制方法
US3578165A (en) Method and apparatus for manufacturing radially finned heat exchange tubing
JPS5915461B2 (ja) フライヤ巻線機
US4235656A (en) Method of and apparatus for forming a coreless armature winding for an electric machine
US2638283A (en) Collapsible drum
CN117104960A (zh) 一种张力可控的分切卷取机
GB2049147A (en) Spine fin tube heat exchangers
US3303859A (en) Method of manufacture of electron discharge tube grid electrodes
GB1023287A (en) Improvements in apparatus for forming polygonal windings of metal wire and strip
US2226961A (en) Filter-unit forming machine
US3339258A (en) Pressure roll and method of making
CN116388487A (zh) 一种铜线绕线装置及其使用方法
CN223718213U (zh) 预应力混凝土管桩用骨架成型装置
JP2862967B2 (ja) ヘリカルコイルの製造方法およびその装置