US3451473A - Heat exchanger construction - Google Patents

Heat exchanger construction Download PDF

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Publication number
US3451473A
US3451473A US629975A US3451473DA US3451473A US 3451473 A US3451473 A US 3451473A US 629975 A US629975 A US 629975A US 3451473D A US3451473D A US 3451473DA US 3451473 A US3451473 A US 3451473A
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US
United States
Prior art keywords
passage
heat exchanger
fuel
dummy
parting
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
US629975A
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English (en)
Inventor
Robert G Urie
Edward W Radtke
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RTX Corp
Original Assignee
United Aircraft Corp
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Filing date
Publication date
Application filed by United Aircraft Corp filed Critical United Aircraft Corp
Application granted granted Critical
Publication of US3451473A publication Critical patent/US3451473A/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
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D9/0062—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by spaced plates with inserted elements
    • F28D9/0075—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by spaced plates with inserted elements the plates having openings therein for circulation of the heat-exchange medium from one conduit to another
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2265/00—Safety or protection arrangements; Arrangements for preventing malfunction
    • F28F2265/16—Safety or protection arrangements; Arrangements for preventing malfunction for preventing leakage
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S165/00—Heat exchange
    • Y10S165/355—Heat exchange having separate flow passage for two distinct fluids
    • Y10S165/356—Plural plates forming a stack providing flow passages therein
    • Y10S165/362—Heat exchange liquids separated by double walls

Definitions

  • This invention relates to plate and fin type heat exchangers and particularly to the construction of the core which is adapted to vent out escaping obnoxious or toxic fluid which is in indirect heat exchange relationship so that is does not comingle with the other fluid in heat exchange relationship therewith.
  • the corner headers are entirely eliminated which not only results in a simpler constructed heat exchanger but significantly reduces the cost thereof.
  • a primary object of the present invention is to provide an improved plate-fin heat exchanger that provides means for venting contamination in the event of leakage therein.
  • passages are provided in the parting sheets and are judiciously located to provide a direct passage to a single boss formed on the heat exchanger for venting the escaped fluid to a lower pressure source.
  • a still further object of this invention is to provide a heat exchanger constructed core characterized as being relatively simple to manufacture and assemble and economical to build, which heat exchanger is adapted to vent escapement of heat exchange fluid in the event of a leakage therein.
  • FIGURE 1 is a partial sectional view of the core of United States Patent 3,451,473 Patented June 24, 1969 the heat exchanger illustrating this invention and in which the headers have been omitted for the sake of clarity.
  • FIGURE 2 is a partial sectional view taken along the line 2-2 of FIG. 1.
  • FIGURE 3 is a partial sectional view taken along the line 33 of FIG. 1.
  • FIGURE 4 is a partial sectional view taken along line 44 of FIG. 1.
  • FIGURE 5 is a partial sectional view taken along the line 5-5 of FIG. 1.
  • FIGURE 6 is a view in perspective illustrating the flow path schematically but the dimensions of which do not necessarily reflect the proportions of the heat exchanger shown in FIGS. 1-5.
  • FIGURE 7 is an exploded view in perspective illustrating a series of heat exchange plates and fins with closure bars separated to show the several fluid flow paths through the heat exchanger.
  • FIGS. 1-6 shows generally a plate-fin type of cross flow heat exchanger illustrated by the general reference numeral 10 consisting of top and bottom plates 12 and 14 and the stacked passages formed therebetween.
  • the heat exchanger comprises alternately dummy passage 16 formed between the bottom plate 14 and the parting sheet 18, fuel passage 20 formed between the parting sheet 18 and 22, dummy passage 24, parting sheet 26, air passage 28, parting sheet .30, dummy passage 32, parting sheet 34, fuel passage 36 and continuing in this manner until the entire core comprises the number of fuel and air passages desired.
  • a dummy passage is adjacent the top and bottom sides of the fuel passage.
  • a pair of spaced closure bars 38 and 40 are mounted parallel along the outer edge thereof. Similar spaced closure bar are mounted on the opposite edge so that dummy passages encircle the fuel passage, except where the core communicates with the fuel headers.
  • fins 42 are suitably mounted therein and sandwiched between the parting sheets as is shown in FIG. 5 of passing the fuel directly through the core is fed from the header 44 which is partially shown for the sake of convenience and clarity.
  • the closure bars 46 and 48 which are spaced in similar manner as were 40 and 38, abut against the parting sheet in the passage immediately below which parting sheet has formed therein a plurality of spaced holes 50. These spaced holes are in communication with the channel formed between the closure bars 46 and 43.
  • the dummy passages as shown in FIG. 3 may contain straight-through fins 54 instead of the wave-type fins illustrated by reference numeral 42 for the sake of simplicity and cost in the manufacturing thereof. It will be noted that the fuel header 44- and the air header 56 do not communicate with the passage since it is blocked off by the closure members 58 and 66.
  • the parting sheet directly above in the adjacent pass is in communication as was mentioned above with the channel defined between spaced closure bars 46 and 48. Iudiciously located spaced holes 59 are formed in the parting sheet immediately adjacent the vent passage. Viewing the next adjacent passage which is an air passage, see FIG.
  • escapement fluid would be directed to the space between the channels or in the vent passages adjacent thereto.
  • the escapement fluid would then be directed from pass to pass away from where fuel or air is in heat transfer relationship until it eventually is directed to the last dummy passage which is in communication with an opening formed in vent boss 69.
  • the escaped fluid is directed to a low pressure source and in the application of an aircraft it would presumably be directed overboard of the aircraft.
  • FIG. 6 illustrates six adjacent passes in the heat exchanger core starting from the bottom pass which is in communication with the vent.
  • the vent being identified by numeral 70, is mounted in any suitable way, to the bottom plate 72, which together with parting sheet 74, defines the first vent passage 76.
  • Space closure bars are mounted on the outer edge of passage 96 as schematically illustrated by closure bars 98 and 100.
  • space closure bars oriented at 90 angle relative to closure bars 98 and 100 are mounted on the edge of the air passage 88, just underneath closure bars 108 and 110 mounted on the edge of fuel pass 80. Assume for illustration purposes that fuel escapes through an opening and leaks past the closure bar 98. From there it is directed to the channel formed between outer edges of parting sheets 90 and 94 and the closure bars 98 and 100.
  • the opening 112 is in communication with the vent passage next adjacent thereunder which contains judiciously located openings as illustrated by reference numeral 114 which is in communication with the space defined by the end closure bars 116 and 118 mounted on the edge of the air passage 88 is then directed to the opening 120 where it directs the fluid to the dummy passage 84 which also contains judiciously located openings 124 which are, in turn, in communication with the channel defined by the edges of parting sheets 78 and 74 and the space closure members 108 and 110.
  • Other judiciously located openings are formed in parting sheet 74 placing that opening in communication with the vent passage 76 directly thereunder.
  • the escapement fluid eventually is vented overboard through opening 128 formed in boss 7
  • What has been shown by this invention is the judicious location of openings in the parting plate of adjacent passages for communicating escapement fluid directly away from the fluids that are in heat exchange relationship with each other.
  • the escapement fluid is directed overboard to a low source so that it is unable to escape into the air passage which eventually directs air to the cabin of the aircraft which air if contaminated could be harmful to the occupants therein.
  • a heat exchanger of the type having a plate and fin core adapted to place a first medium and a second medium in indirect heat exchange relation comprising,
  • At least one pass having parallelly spaced plates and fins disposed therein defining open-ended channels for receiving and conducting one of said mediums,
  • dummy passage means also having parallelly spaced plates sandwiching said pass adapted to receive escapement of the medium in the event of leakage
  • a cross-flow heat exchanger of the type that has a top and bottom plate
  • corrugated fin elements sandwiched between the parting sheets defining therewith straight-through channels
  • adjacent channels defining passes in a predetermined sequence such that a dummy pass, a fuel pass, a dummy pass, an air pass constitute a repeatable pattern
  • headers mounted externally of said core for admitting and discharging fuel and air to the respective air and fuel passes

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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)
US629975A 1967-04-11 1967-04-11 Heat exchanger construction Expired - Lifetime US3451473A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US62997567A 1967-04-11 1967-04-11

Publications (1)

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US3451473A true US3451473A (en) 1969-06-24

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US629975A Expired - Lifetime US3451473A (en) 1967-04-11 1967-04-11 Heat exchanger construction

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US (1) US3451473A (OSRAM)
FR (1) FR1578846A (OSRAM)
GB (1) GB1212065A (OSRAM)

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3570593A (en) * 1968-02-05 1971-03-16 Trane Soc Heat-exchanger
US3590914A (en) * 1969-10-01 1971-07-06 Trane Co Countercurrent flow plate-type heat exchanger with leak detector
US3633661A (en) * 1970-08-14 1972-01-11 Trane Co Crossflow plate-type heat exchanger with barrier space
US3847211A (en) * 1969-01-28 1974-11-12 Sub Marine Syst Inc Property interchange system for fluids
US4041592A (en) * 1976-02-24 1977-08-16 Corning Glass Works Manufacture of multiple flow path body
DE2939858A1 (de) * 1978-10-26 1980-04-30 Garrett Corp Waermetauscher
FR2471569A1 (fr) * 1979-12-12 1981-06-19 Neo Tec Etude Applic Tech Echangeur thermique a toles empilees
US4313494A (en) * 1978-05-22 1982-02-02 Carl Johan Lockmans Ingenjorsbyra Plate heat exchanger
US4623019A (en) * 1985-09-30 1986-11-18 United Aircraft Products, Inc. Heat exchanger with heat transfer control
US4632180A (en) * 1986-03-04 1986-12-30 Lauderdale Robert J Potable water heat exchanger
US20040144525A1 (en) * 2000-12-28 2004-07-29 Fabienne Chatel Heat exchanger with brazed plates
US20060048921A1 (en) * 2004-09-08 2006-03-09 Usui Kokusai Sangyo Kaisha Limited Fin structure, heat-transfer tube having the fin structure housed therein, and heat exchanger having the heat-transfer tube assembled therein
US7337836B1 (en) * 1997-02-25 2008-03-04 Ep Technology Ab Heat exchanger with leakage vent
CN101210780B (zh) * 2006-12-30 2010-10-20 卡特彼勒公司 具有非平行冷却散热片的冷却系统
CN101210779B (zh) * 2006-12-30 2010-12-01 卡特彼勒公司 具有带扁平顶部的弯曲散热片的冷却系统
EP2700895B1 (en) 2012-08-21 2016-04-06 Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) Plate fin heat exchanger and repair method for plate fin heat exchanger
US20160282066A1 (en) * 2013-03-18 2016-09-29 Sumitomo Precision Products Co., Ltd. Heat exchanger
CN106052476A (zh) * 2016-07-22 2016-10-26 新乡豫新车辆换热设备股份有限公司 一种板翅式换热器

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2935473A1 (fr) * 2008-08-27 2010-03-05 Air Liquide Echangeur de chaleur.

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2846198A (en) * 1953-11-27 1958-08-05 Ici Ltd Heat exchangers
US3150028A (en) * 1960-07-18 1964-09-22 Separator Ab Plate heat exchanger for evaporation or distillation of liquids
US3229764A (en) * 1962-05-11 1966-01-18 Trane Co Compact heat exchanger

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2846198A (en) * 1953-11-27 1958-08-05 Ici Ltd Heat exchangers
US3150028A (en) * 1960-07-18 1964-09-22 Separator Ab Plate heat exchanger for evaporation or distillation of liquids
US3229764A (en) * 1962-05-11 1966-01-18 Trane Co Compact heat exchanger

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3570593A (en) * 1968-02-05 1971-03-16 Trane Soc Heat-exchanger
US3847211A (en) * 1969-01-28 1974-11-12 Sub Marine Syst Inc Property interchange system for fluids
US3590914A (en) * 1969-10-01 1971-07-06 Trane Co Countercurrent flow plate-type heat exchanger with leak detector
US3633661A (en) * 1970-08-14 1972-01-11 Trane Co Crossflow plate-type heat exchanger with barrier space
US4041592A (en) * 1976-02-24 1977-08-16 Corning Glass Works Manufacture of multiple flow path body
US4313494A (en) * 1978-05-22 1982-02-02 Carl Johan Lockmans Ingenjorsbyra Plate heat exchanger
DE2939858A1 (de) * 1978-10-26 1980-04-30 Garrett Corp Waermetauscher
US4246963A (en) * 1978-10-26 1981-01-27 The Garrett Corporation Heat exchanger
FR2471569A1 (fr) * 1979-12-12 1981-06-19 Neo Tec Etude Applic Tech Echangeur thermique a toles empilees
US4623019A (en) * 1985-09-30 1986-11-18 United Aircraft Products, Inc. Heat exchanger with heat transfer control
US4632180A (en) * 1986-03-04 1986-12-30 Lauderdale Robert J Potable water heat exchanger
US7337836B1 (en) * 1997-02-25 2008-03-04 Ep Technology Ab Heat exchanger with leakage vent
US20040144525A1 (en) * 2000-12-28 2004-07-29 Fabienne Chatel Heat exchanger with brazed plates
US7059397B2 (en) * 2000-12-28 2006-06-13 L'air Liquide, Societe Anonyme A Directoire Et Conseil De Surveillance Pour L'etude Et L'exploitation Des Procedes Georges Claude Heat exchanger with brazed plates
US20060048921A1 (en) * 2004-09-08 2006-03-09 Usui Kokusai Sangyo Kaisha Limited Fin structure, heat-transfer tube having the fin structure housed therein, and heat exchanger having the heat-transfer tube assembled therein
US7303002B2 (en) * 2004-09-08 2007-12-04 Usui Kokusai Sangyo Kaisha Limited Fin structure, heat-transfer tube having the fin structure housed therein, and heat exchanger having the heat-transfer tube assembled therein
CN101210780B (zh) * 2006-12-30 2010-10-20 卡特彼勒公司 具有非平行冷却散热片的冷却系统
CN101210779B (zh) * 2006-12-30 2010-12-01 卡特彼勒公司 具有带扁平顶部的弯曲散热片的冷却系统
EP2700895B1 (en) 2012-08-21 2016-04-06 Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) Plate fin heat exchanger and repair method for plate fin heat exchanger
US11549763B2 (en) 2012-08-21 2023-01-10 Kobe Steel, Ltd. Plate fin heat exchanger and repair method for plate fin heat exchanger
US20160282066A1 (en) * 2013-03-18 2016-09-29 Sumitomo Precision Products Co., Ltd. Heat exchanger
US9810489B2 (en) * 2013-03-18 2017-11-07 Sumitomo Precision Products Co., Ltd. Heat exchanger
CN106052476A (zh) * 2016-07-22 2016-10-26 新乡豫新车辆换热设备股份有限公司 一种板翅式换热器

Also Published As

Publication number Publication date
FR1578846A (OSRAM) 1969-08-22
GB1212065A (en) 1970-11-11

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