US3822742A - Plate type heat exchanger and production - Google Patents

Plate type heat exchanger and production Download PDF

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Publication number
US3822742A
US3822742A US00297892A US29789272A US3822742A US 3822742 A US3822742 A US 3822742A US 00297892 A US00297892 A US 00297892A US 29789272 A US29789272 A US 29789272A US 3822742 A US3822742 A US 3822742A
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United States
Prior art keywords
exchanger
pad member
spaces
plate
rows
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Expired - Lifetime
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US00297892A
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English (en)
Inventor
S Stowell
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Tranter Manufacturing Inc
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Tranter Manufacturing Inc
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Publication date
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Priority to US00297892A priority Critical patent/US3822742A/en
Priority to IT53706/72A priority patent/IT974810B/it
Priority to US463682A priority patent/US3911843A/en
Application granted granted Critical
Publication of US3822742A publication Critical patent/US3822742A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/12—Elements constructed in the shape of a hollow panel, e.g. with channels
    • F28F3/14—Elements constructed in the shape of a hollow panel, e.g. with channels by separating portions of a pair of joined sheets to form channels, e.g. by inflation

Definitions

  • Belknap ABSTRACT margins by a pattern of elongated seam weld and interrupted seam or spot weld-type unions.
  • the latter are arranged in longitudinally extending rows paralleling horizontal and intermediate seam welds, the interrupted welds of successive rows being in a longitudinally and laterally staggered relationship defining a symmetric pattern of uniformly diamond-shaped areas between sets of four of the interrupted welds.
  • Each of these units consists of a nipple-like cylindrical pipe length about the circumference of which a pair of like stamped sheet metal pad-like plates are welded. Flat portions of these plates are in turn telescoped in parallel relation to and over a portion of the notched margin of the prior-welded heat transfer plate or sheet sub-assembly, spanning the respective notches, and are thereafter welded leaktight to said plates about the margins of the two fitting pad components.
  • the heat transfer unit handling steam or other fluid as a transfer medium, finds application in many heat transfer uses, as in chemical processing, metal working, paper and textile plants, and the like.
  • Another unit of similar function is the subject matter of McGuffey, US. Pat. No. 3,502,142, dated Mar. 24, 1970, also of common ownership.
  • the invention affords a transfer unit which, as constituted in the manner described in the Abstract, may be marketed in a limited number of basic styles, each variable in respect to specific design, for example, as to the orientation on the expanded heat transfer sheet or plate sub-assembly of the two intake and outlet fitting pads, as well as in regard to the material and dimensioning of the structure as a whole to meet a wide range of heating and cooling applications of the nature referred to in the Field. It is a very economically produced and potentially low-priced unit, in general performing the functions of the structure of the first identified McGuffey patent.
  • the arrangement of the interrupted and staggered weld zones preferably in a generally serpentine arrangement for a reversing parallel flow of the fluid transfer medium from inlet to outlet, plus the improved feature of stamped plate and nipple fitting subassemblies, affords ample and sufficient ingress and egress volume to efficiently and balancedly service the interior of the exchanger unit, with no local entrapment of the heat transfer medium, whether liquid or vaporous.
  • the welds as symmetrically arranged in a fixed parallel zonal relationship, enable an accurately predictable hydraulic pressure expansion of the unit in manufacture, without resort to the expedient of tensioning the component sheet metal plates during welding, as in the case of the prior art Mueller patent identified above.
  • FIG. 1 is a side elevational view, partially broken, of a typical plate heat exchange unit in one of a few basic styles contemplated by the invention
  • FIG. 2 is an enlarged scale fragmentary view in side elevation better showing the weldments which unite the fitting pad component to the welded plate component of the unit;
  • FIGS. 3 and 4 are similarly enlarged scale fragmentary views in vertical section along lines 3-3 and 4-4, respectively, of FIG. 1, FIG. 3 indicating in dot-dash line the sectional outline of a fitting pad prior to its expansion to the finished sectional configuration shown in solid line;
  • FIG. 5 is a similar view in horizontal section on line 5-5 of FIG. 1;
  • FIG. 6 is a fragmentary elevational view of the welded plate assembly prior to application of the inlet and outlet fitting sub-assemblies and hydraulic pressure expansion of the unit.
  • the improved unit as generally designated by the reference numeral 10, essentially comprises a pair of identical weld-united sheet steel plates constituting an internally passaged fluid flow distributing panel or plate sub-assembly, generally designated 11, of unit 10, being equipped with a pair of intake and outlet fitting members or sub-assemblies 12, 13, respectively.
  • FIG. 1 shows a typical style in which these intake and outlet devices are disposed on a common longitudinal margin of plate component 11, adjacent an upper corner thereof.
  • said fittings might be applied in vertically spaced relation to one another at an extreme upright side margin of the plate structure, or otherwise.
  • Handling grip elements 14 welded to the plate structure 11 are of secondary significance.
  • the weldments comprise continuous marginal seam welds l8, 19 about the respective pairs of horizontal and vertical sides of the assembled plates, being located well inwardly of the edges thereof, as indicated in FIGS. 2, 4 and 5.
  • another upright seam weld 20 is made paralleling and in laterally inwardly spaced relation to the upright left-hand marginal seam weld 19, thus defining a vertical zone in which an upright fluid discharge header passage will be isolated from horizontal flow distribution passages, both later described, except the bottom one.
  • plates 16 and 17 are continuously seam welded along lines parallel to and vertically spaced from one another; and in the typical illustrated unit the pattern of these continuous welds will include an internal seam weld 21 which commences from the left at upright weldment and continues to the right a major portion of the horizontal length of the unit 10, but terminating well short of the right-hand vertical margin weld 19.
  • This seam union 21 is spaced vertically from a second horizontal seam 22 of substantially the same length, but extending to the left from the righthand upright seam 19 a distance generally corresponding to the length of seam 2 l, i.e., terminating well short of header weld 20', and a third horizontal seam weld 23 duplicates in relative position and extent the continu ous weldment 2] commencing from the bottom of seam weld 20.
  • the vertical spacing of weld 23 above bottom margin weld l8 somewhat exceeds the spacing of the three hroizontal seams 21, 22, 23 from one another; the purpose being to outline an augmented initial horizontal flow distribution zone, as will appear.
  • the plates l6, 17 are also intermediately welded and interiorly sub-divided in part into elongated horizontal pass areas generally separated from one another by scams 2], 22 and 23.
  • This subdivision is afforded by a plurality of series of interrupted seam or spot-like welds individually designated 25, which are produced in a single welding cycle by the improved equipment referred to above.
  • the patterning is such that the two rows of welds 25 above seam weld 21 are longitudinally and transversely staggered relative to one another.
  • a similar pattern characterizes the zone between the pairs of seam welds 21, 22 and 22, 23, and by preference (as indicated above) the horizontal distribution area between continuous weld 23 and the bottom marginal weld 18 is sufficiently wider than the three above zones to accommodate four rows of the interrupted and staggered welds 25.
  • the result is that, in each of these seam weldsubdivided zones there is a distinct patterning between continuous and interrupted weldments in a symmetrical diamond shape, as suggested at several places in dot-dash line in FIG. I.
  • the lines of welding, continuous and interrupted are machine-commenced at a central zone, being progressively outwardly produced in order to obtain an ironing effect maintaining true smooth flat-wise contact of the sheets l6, 17 as they are being welded and after welding.
  • the sheet or plate sub-assembly I1 is marginally cut as indicated in FIG. 6, to provide the respective larger and somewhat smaller rectangular edge notches 27, 28 at which the respective fitting pad units l2, 13 are to be applied, although the notching may, of course, be done prior to welding.
  • fitting sub-assemblies l2, 13 is the same save for size, being best depicted in FIGS. 2 and 3. It comprises an elongated tubular, nipple-like pipe length 29, threaded at an outer end for at-- tachment in the circulating line of the heat transfer medium; and this fitting part is surrounded at its lower end by semi-cylindrical formations 30 (FIG. 3) of a pair of identical sheet metal stampings 31.
  • the diamond outline of spaces 37 affords full and direct unimpeded intercommunication of these spaces with one another along both diagonal and related distribution paths, and throughout the length and breadth of the interrupted weld passes, yet with a very strong and unimpaired internal union of plates l6, 17 with one another, attributable to the staggered-row patterning.
  • the size of the inlet fitting header cross section or space 38 assures an ample, unthrottled admission of heating medium to the plate interior, free of any degree of trapping that fluid in this entry zone; and the proportioning of the other or outlet fitting 13, as communicated with the expanded discharge header 39 (FIG. 5) defined between the parallel upright seam welds l9 and 20, similarly accommodates an un restricted exhausting of the transfer fluid to its circulation line.
  • the exchanger 10 is capable of inexpensive manufacture in a limited number of models, differing in size and internal capacity, specific location of inlet and outlet fittings, number of serpentine passes, etc., to satisfy many performance specifications. Indeed, there may be instances of which continuous internal seam welding, to define the illustrated serate welding being solely through the agency of the longitudinally interrupted, staggered row spot-like welds 25 in the above-described pattern of distribution.
  • a plate-type heat exchanger comprising a pair of similar plates marginally'seamed together in a unitary face-to-face relationship to constitute a plate subassembly having at least one flat edge margin, the exchanger being internally subdivided into a pattern of directly intercommunicating transversely expanded spaces for the internal distributed flow in the exchanger of a fluid heat transfer medium, and inlet and outlet means for said flow, comprising at least one fitting pad sub-assembly connectable to a circulation line for said exchanger and comprising a tubular member so connectable, and a connector pad member including at least two similar parts fluid tight-connected and sealed to and circumferentially of said tubular member, said pad member parts providing a space-affording portion of the pad member in communication with said expanded spaces of the plate sub-assembly and with said tubular member, said pad member parts being provided with flat plate-like portions extending laterally from said space-affording portion, said flat portions being straddle
  • a plate-type heat exchanger comprising a pair of similar plates marginally seamed together in a unitary face-to-face relationship to constitute a plate subassembly having at least one flat edge margin, the exchanger being internally subdivided by face-contacting welds into a pattern of uniform and directly intercommunicating, transversely expanded spaces for the internal distributed flow in the exchanger of a fluid heat transfer medium, and inlet and outlet means for said flow, comprising at least one fitting pad sub-assembly connectable to a circulation line for said exchanger and comprising a tubular member so connectable, and a connector pad member including at least two similar parts fluid tight-connected and sealed to and circumferentially of said tubular member in an externally telescoping relation to the latter, said pad member parts providing a space-affording portion of said pad member in communication with said expanded spaces of the plate subassembly and with said tubular member, said pad member parts being provided with flat plate-like portions extending laterally from said space-af
  • said pad member parts are a pair of similar stampings having generally semi-cylindrical formations applied to diametrically opposite surfaces of said tubular member and providing said space-affording portions, said straddling portions being integral extensions of said formations.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
US00297892A 1972-10-16 1972-10-16 Plate type heat exchanger and production Expired - Lifetime US3822742A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US00297892A US3822742A (en) 1972-10-16 1972-10-16 Plate type heat exchanger and production
IT53706/72A IT974810B (it) 1972-10-16 1972-10-30 Perfezionamento negli scambiatori di calore e relativo procedi mento di fabbricazione
US463682A US3911843A (en) 1972-10-16 1974-04-24 Method of making a plate-type heat exchange unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00297892A US3822742A (en) 1972-10-16 1972-10-16 Plate type heat exchanger and production

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US3822742A true US3822742A (en) 1974-07-09

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4081026A (en) * 1975-11-17 1978-03-28 Olin Corporation Hollow article
US4086910A (en) * 1976-04-14 1978-05-02 Tranter, Inc. Solar absorber panel
US4184543A (en) * 1976-07-06 1980-01-22 Olin Corporation Heat exchanger exhibiting improved mechanical and thermal stability
US20110005076A1 (en) * 2007-11-26 2011-01-13 Gesmex Gmbh Method for connecting at least two heat exchanger plates
WO2011057597A1 (de) 2009-11-11 2011-05-19 Lurgi Gmbh Gaswäscher mit integriertem wärmetauscher
US8464635B1 (en) 2008-01-17 2013-06-18 Alkar-Rapidpak-Mp Equipment, Inc. Frying system
PL423080A1 (pl) * 2017-10-06 2019-04-08 Rachfał Adam Rstechnology Sposób wykonania płaszcza grzewczo-chłodzącego zwłaszcza do wysoko pojemnościowych i wysokociśnieniowych konstrukcji zbiorników i płaszcz grzewczo-chłodzący zwłaszcza do wysoko pojemnościowych i wysokociśnieniowych konstrukcji zbiorników
US20220250136A1 (en) * 2020-12-16 2022-08-11 Mahle International Gmbh Method for producing a heat exchanger

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2626130A (en) * 1949-08-19 1953-01-20 Raskin Leon Heat exchanger device
US2781645A (en) * 1952-09-17 1957-02-19 Gen Motors Corp Heat exchanger
US2848200A (en) * 1954-11-26 1958-08-19 Gen Motors Corp Heat exchanger
US2900175A (en) * 1958-03-28 1959-08-18 Tranter Mfg Inc Plate heat exchange unit
US2974498A (en) * 1957-09-04 1961-03-14 Westinghouse Electric Corp Refrigeration apparatus
US3126215A (en) * 1964-03-24 Couplings or connectors for heat exchange plates
US3458917A (en) * 1966-01-03 1969-08-05 Mueller Co Paul Method of fabricating metal sheets with fluid passages

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3126215A (en) * 1964-03-24 Couplings or connectors for heat exchange plates
US2626130A (en) * 1949-08-19 1953-01-20 Raskin Leon Heat exchanger device
US2781645A (en) * 1952-09-17 1957-02-19 Gen Motors Corp Heat exchanger
US2848200A (en) * 1954-11-26 1958-08-19 Gen Motors Corp Heat exchanger
US2974498A (en) * 1957-09-04 1961-03-14 Westinghouse Electric Corp Refrigeration apparatus
US2900175A (en) * 1958-03-28 1959-08-18 Tranter Mfg Inc Plate heat exchange unit
US3458917A (en) * 1966-01-03 1969-08-05 Mueller Co Paul Method of fabricating metal sheets with fluid passages

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4081026A (en) * 1975-11-17 1978-03-28 Olin Corporation Hollow article
US4086910A (en) * 1976-04-14 1978-05-02 Tranter, Inc. Solar absorber panel
US4184543A (en) * 1976-07-06 1980-01-22 Olin Corporation Heat exchanger exhibiting improved mechanical and thermal stability
US20110005076A1 (en) * 2007-11-26 2011-01-13 Gesmex Gmbh Method for connecting at least two heat exchanger plates
US8499452B2 (en) * 2007-11-26 2013-08-06 Gesmex Gmbh Method for connecting at least two heat exchanger plates
US8464635B1 (en) 2008-01-17 2013-06-18 Alkar-Rapidpak-Mp Equipment, Inc. Frying system
WO2011057597A1 (de) 2009-11-11 2011-05-19 Lurgi Gmbh Gaswäscher mit integriertem wärmetauscher
DE102009052506A1 (de) 2009-11-11 2011-06-01 Lurgi Gmbh Gaswäscher mit integriertem Wärmetauscher
PL423080A1 (pl) * 2017-10-06 2019-04-08 Rachfał Adam Rstechnology Sposób wykonania płaszcza grzewczo-chłodzącego zwłaszcza do wysoko pojemnościowych i wysokociśnieniowych konstrukcji zbiorników i płaszcz grzewczo-chłodzący zwłaszcza do wysoko pojemnościowych i wysokociśnieniowych konstrukcji zbiorników
US20220250136A1 (en) * 2020-12-16 2022-08-11 Mahle International Gmbh Method for producing a heat exchanger
US11724303B2 (en) * 2020-12-16 2023-08-15 Mahle International Gmbh Method for producing a heat exchanger

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