EP0252019A1 - Assemblable modular element heat exchanger - Google Patents

Assemblable modular element heat exchanger Download PDF

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Publication number
EP0252019A1
EP0252019A1 EP87830182A EP87830182A EP0252019A1 EP 0252019 A1 EP0252019 A1 EP 0252019A1 EP 87830182 A EP87830182 A EP 87830182A EP 87830182 A EP87830182 A EP 87830182A EP 0252019 A1 EP0252019 A1 EP 0252019A1
Authority
EP
European Patent Office
Prior art keywords
changer
element heat
modular element
assemblable
central portion
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.)
Withdrawn
Application number
EP87830182A
Other languages
German (de)
English (en)
French (fr)
Inventor
Gaetano Piazzola
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0252019A1 publication Critical patent/EP0252019A1/en
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/40—Heating elements having the shape of rods or tubes
    • H05B3/42—Heating elements having the shape of rods or tubes non-flexible
    • H05B3/48—Heating elements having the shape of rods or tubes non-flexible heating conductor embedded in insulating material
    • H05B3/50—Heating elements having the shape of rods or tubes non-flexible heating conductor embedded in insulating material heating conductor arranged in metal tubes, the radiating surface having heat-conducting fins
    • 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
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/24—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely
    • F28F1/30—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely the means being attachable to the element

Definitions

  • the present invention relates to an assembla­ble modular element heat exchanger structure.
  • the knwon heat exchangers have not been found to be satisfactory both because of a rather complex structure and because they are not able of fully exploiting the heat exchanging capability of the used heating element.
  • the task of the present invention is to overcome the above mentioned drawbacks, by pro­viding such an assemblable modular element heat ex­changer which affords the possibility of greatly in­creasing the thermal exchange surface as well increasing the air turbulence to optimize the heat exchanger efficiency.
  • Another object of the present invention is to provide such a heat exchanger structure the several elements of which may be simply assembled so as to increase the thermal exchange surfaces without the need of remarkable constructional modifications.
  • Yet another object of the present invention is to provide such an assemblable modular element heat exchanger structure which may be easily made starting from easily commercially available elements and which is advantageous from a mere economic standpoint.
  • an assemblable modular ele­ment heat exchanger structure characterized in that it comprises a central heating element housed in at least a hollow defined in the central portion of a plurality of modular elements adjoining one another.
  • a plurality of fins extend which are sub­ stantially coplanar with said central portion.
  • the assembla­ble modular element heat exchanger structure accord­ing to the invention which is generally indicated at the reference number 1, comprises a central heat­ing element, which consists of an electric resistance 2, of substantially U-shape, as is shown in Figures 1 to 3, or which, possibly, may consist of an electric resistance 3 of substantially rectilinear shape and substantially rectangular cross-section.
  • the two branches or legs 2a of the electric resistance 2 are housed in hollows 4 defined in the central portion 5 of a modular ele­ment 6 which, advantageously,has a substantially plate-like shape.
  • the hollows 4 are so designed as to intima­tely contact the electric resistance 2 so as to pro­vide a very good conduction heat transmission.
  • the modular elements 6 which, as mentioned, has a substantially plate-like shape, are adjoined to one another so as to define a modular element pack or set, to provide the heat exchanger with the desired size.
  • the modular elements 6 may be made by molding and are preferably made of uminium or copper.
  • the central portion 5 as it has been mention­ed, has a substantially plate-like shape and, from its edges, fins 7 extend which have preferably a less thickness than that of the central portion 5, so as to define air gaps, spaced from one another, adapted for increasing the thermal exchange surface.
  • the fins 7 are substantially coplanar with respect to the plate-like element 5.
  • the fins 7 are advantageously provided with throughgoing holes 8, formed through an intermediate portion thereof, which holes act to provide respective passages for the thermal exchange air flow.
  • the heat exchanger is provided with a central heating element consisting of a rectilinear heating electric resistance 3; in this case the modular element, also indicated at 6, is provided with a single central hollow housing the rectilinear electric resistance, which resistance is provided with end electrical connection portions 10.
  • a heat exchanger has been provided which may be easily made by simply locating in an adjoining relationship specifically shaped modular elements which, in addition to remarkably increasing the thermal exchange surface, also act to facilitate the thermal exchange air con­vection movements as well as air turbulence at the modular elements thereby preventing air from stagnating to thermally insulate the exchange elements.
  • the heat exchanger may be made with any sizes and shapes starting from standardized modular elements which may be coupled in any desired number thereby providing desired size heat exchangers.
  • the used mate­ rials provided that they are compatible to the in­tended use, as well as the size and specific shapes, may be any according to requirements.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Conditioning For Vehicles (AREA)
EP87830182A 1986-05-15 1987-05-14 Assemblable modular element heat exchanger Withdrawn EP0252019A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT2183186U 1986-05-15
IT2183186U IT208574Z2 (it) 1986-05-15 1986-05-15 Struttura di scambiatore di calore ad elementi modulari componibili.

Publications (1)

Publication Number Publication Date
EP0252019A1 true EP0252019A1 (en) 1988-01-07

Family

ID=11187475

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87830182A Withdrawn EP0252019A1 (en) 1986-05-15 1987-05-14 Assemblable modular element heat exchanger

Country Status (2)

Country Link
EP (1) EP0252019A1 (it)
IT (1) IT208574Z2 (it)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2660746A1 (fr) * 1990-04-10 1991-10-11 Valeo Echangeur de chaleur a tubes pour le degivrage rapide d'un pare-brise, et son procede de montage.
CN104270842A (zh) * 2014-09-15 2015-01-07 常州市耀华仪器有限公司 U型加热管

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2051930A (en) * 1935-02-09 1936-08-25 Young Radiator Co Electric heating unit
US2216778A (en) * 1937-07-23 1940-10-08 Houdry Process Corp Heat exchange member and method of making
FR958125A (it) * 1950-03-03
US2537984A (en) * 1944-06-13 1951-01-16 Foster Wheeler Corp Heat exchange apparatus
CH414705A (de) * 1964-10-15 1966-06-15 Bbc Brown Boveri & Cie Wärmeaustauschelement
US3550680A (en) * 1969-03-24 1970-12-29 Orbit Mfg Co Inc Finned tube heat exchanger and method of making same
FR2348617A1 (fr) * 1976-04-15 1977-11-10 Finimetal Sarl Resistance electrique blindee, notamment pour appareil de chauffage
DE2643817A1 (de) * 1976-09-29 1978-03-30 Eichenauer Fa Fritz Elektrische heizkoerper

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR958125A (it) * 1950-03-03
US2051930A (en) * 1935-02-09 1936-08-25 Young Radiator Co Electric heating unit
US2216778A (en) * 1937-07-23 1940-10-08 Houdry Process Corp Heat exchange member and method of making
US2537984A (en) * 1944-06-13 1951-01-16 Foster Wheeler Corp Heat exchange apparatus
CH414705A (de) * 1964-10-15 1966-06-15 Bbc Brown Boveri & Cie Wärmeaustauschelement
US3550680A (en) * 1969-03-24 1970-12-29 Orbit Mfg Co Inc Finned tube heat exchanger and method of making same
FR2348617A1 (fr) * 1976-04-15 1977-11-10 Finimetal Sarl Resistance electrique blindee, notamment pour appareil de chauffage
DE2643817A1 (de) * 1976-09-29 1978-03-30 Eichenauer Fa Fritz Elektrische heizkoerper

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2660746A1 (fr) * 1990-04-10 1991-10-11 Valeo Echangeur de chaleur a tubes pour le degivrage rapide d'un pare-brise, et son procede de montage.
CN104270842A (zh) * 2014-09-15 2015-01-07 常州市耀华仪器有限公司 U型加热管

Also Published As

Publication number Publication date
IT208574Z2 (it) 1988-05-28
IT8621831V0 (it) 1986-05-15

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