EP0013700A1 - Baukasteneinheiten für Wärmetauscher oder dgl. und so erhaltener Wärmetauscher - Google Patents

Baukasteneinheiten für Wärmetauscher oder dgl. und so erhaltener Wärmetauscher Download PDF

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Publication number
EP0013700A1
EP0013700A1 EP79104298A EP79104298A EP0013700A1 EP 0013700 A1 EP0013700 A1 EP 0013700A1 EP 79104298 A EP79104298 A EP 79104298A EP 79104298 A EP79104298 A EP 79104298A EP 0013700 A1 EP0013700 A1 EP 0013700A1
Authority
EP
European Patent Office
Prior art keywords
modules
heat exchanger
reservoir
tank
evaporator
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Withdrawn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
EP79104298A
Other languages
English (en)
French (fr)
Inventor
Piero Pasqualini
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 EP0013700A1 publication Critical patent/EP0013700A1/de
Withdrawn legal-status Critical Current

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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
    • F28D7/10—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 one within the other, e.g. concentrically
    • F28D7/106—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 one within the other, e.g. concentrically consisting of two coaxial conduits or modules of two coaxial conduits
    • 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
    • F28F9/26—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators

Definitions

  • This invention relates to a novel modular structure for the production of heat exchangers, condensers, evaporators or reservoirs which are used separately or along with one of the above mentioned devices.
  • heat exchanger will be referred to as any of the above mentioned devices.
  • Another conventional approach contemplates a coil comprising two continuous coaxial tubes which are spirally wound up. This approach is restricted to the length of the commercially available tubes. It is also difficult and cumbersome to provide for parallel arrangement between a plurality of coils.
  • a first embodiment of the invention enables to provide a not inspectable type of heat exchanger by connecting the inner tubes of the heat exchanger with fixed curves or bendings.
  • a second embodiment according to the invention contemplates the provision of an inspectable type of heat exchanger with the addition of modular gaskets or seals and covers or lids also of modular type. These covers or lids are preferably made by the same equipment used for the modules. According to a particular embodiment of the invention such lids and modules are secured in place by bolts and nuts housed on the periphery of the modules forming the head.
  • high pressure resisting tanks or reservoirs can be readily provided as comprising a number of series and parallel tubes.
  • the modules according to the present invention are preferably made by pressing and can be provided in all of the ferrous materials or alloys of non-ferrous metals, and therefore can be used also with fluids requiring the use of particular materials.
  • the inner tubes intended for heat exchange may be smooth, finned, rolled, extruded, etc.
  • reference numeral 1 denotes the head module having only one opening for a tube on each of its major surfaces, which will be respectively referred to as inner and outer surfaces.
  • Reference numeral 2 denotes a module similar to the former, but of a larger size and having two openings for tubes on each of its major inner and outer surfaces.
  • Module 1 comprises a socket 10 of a square shape with beveled angles or corners, having an opening 11 on its inner surface and an opening 12 on its outer surface, into which a closure wall 13 is caused to penetrate and at the rear bears on some impressions 14 formed on at least two side walls of said socket 10.
  • Said closure wall 13 has a central hole 15 projecting from the body of socket 10 and is located on the opposite side relative to hole or opening 11, that is in the surface which is outside to the heat exchanger. Opening 15 is smaller than opening 11. The first one will receive the inner tube of a heat exchanger and the second one the outer tube.
  • module 1 is provided by pressing out a socket which initially does not comprise either said opening 11 or impressions 14, then these operations are carried out thereon, and finally said wall 13 is assembled by causing it to bear against impressions 14.
  • This bearing is useful during brazing operation which is effected throughout the contact periphery between said socket and wall 13, as shown at 16 of Fig. 4b.
  • Module 2 is similarly made as module 1. Particularly, it is formed of a socket 20 of about rectangular cross-section, having impressions 24 and two openings 21 on its inner surface (instead of one as in module 1). The openings 21 have the same diameter as openings 11. At the front said socket 20 is closed by a wall 23 abutting against impressions 24 and also having two holes 25 of the same diameter as holes 15. Also this wall is brazed at locations 26 throughout its periphery of contact with socket 20.
  • This module 2 is of rectangular shape with beveled corners, in a plan view, as clearly shown in Fig. 5a. The distance between the holes 21 or 25 of module 2 is the same as the distance between holes 11 and 15 of two adjacent modules 1..
  • the heat exchanger comprises a set of inner tubes 3, externally of which outer tubes coaxial with the former and denoted by reference numeral 4 are mounted.
  • the outer tube is formed by a tube 4' having an inlet or outlet sleeve 4".
  • Tubes 3 are longer than tubes 4 and 4', so as to penetrate into holes 21 or 11, clearing the gap between the respective tubes 3 and the side walls of sockets 20 or 10, while the end of the tubes is precisely inserted in holes 15 and 25, then sealing is provided, for example by means of welding or other similar operation.
  • the outer tube 4 or 4' is of such a diameter that it is exactly inserted on the side walls of openings 21 or 11; also in this case, sealing is provided for example by welding or other similar operation.
  • the heads are formed of modules 1 and 2 arranged in adjoining relationship or alternate, as desired, so as to provide a continuous water circuit, in which tubes 4 and 4' are all in series to one another, the connection thereof being obtained within modules 1 or 2. For each head, these modules. and 2 are joined to one another, for example by welding.
  • the circuit connection between the inner tubes 3 is provided by means of seals 5 having only one hole 5a of nearly circular shape, or by means of seals 6 provided with an oval hole 6a connecting the two openings 25 of module 2 and covers 7, corresponding to the size of module 1, or covers 8, corresponding to the size of module 2.
  • These covers 7 and 8 and seals 5 and 6 are retained against modules 1 and 2 by means of bars 31, screws 32 and nuts 30 that are secured, for example, by welding to modules 1 and 2.
  • the circulation of the fluids is as follows.
  • the admittance of a first external fluid is along arrow A, the fluid traveling through the gap between tubes 3 and 4, penetrating into the inner space in module 2, traveling again through the gap between tubes 3 and 4, then again through the space or cavity in module 2, and so on for several times until issuing in the direction of arrow B.
  • the circuit for the inner fluid is provided by causing it to enter from C, travel throughout the inner tubes 3 passing in the hollow empty spaces 5a and 6a within the seals, 5 and 6 and issuing from tube 7' on cover 7 in the direction of arrow D.
  • FIG. 2 there is shown an embodiment of simplified design relative to that of Fig. 1.
  • connection between inner tubes 3 is provided by means of bendings 33 and sleeves 34 which will be respectively welded to the ends 25 of modules 2, or to the ends 15 of modules 1.
  • Fig. 3 shows an approach similar to that of Fig. 2, in which part of the rank is used as a tank or reservoir. Use is made in this case of a module .2' having only one outlet 25, on which a sleeve 34 is mounted for the entry of the inner fluid circulating in tubes 3 in the direction of arrow C. This fluid will issue in the direction of arrow D. The outer fluid circulating in the gap between tubes 3 and 4 or.4' will enter in the direction of arrow A and issue from sleeve 34. In this embodiment the two lower tubes 4 are no longer effective as a heat exchanger, but merely as a tank or reservoir.
EP79104298A 1979-01-22 1979-11-05 Baukasteneinheiten für Wärmetauscher oder dgl. und so erhaltener Wärmetauscher Withdrawn EP0013700A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT1949879 1979-01-22
IT19498/79A IT1110963B (it) 1979-01-22 1979-01-22 Moduli per scambiatore di calore o simili e scambiatore cosi' ottenuto

Publications (1)

Publication Number Publication Date
EP0013700A1 true EP0013700A1 (de) 1980-08-06

Family

ID=11158534

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79104298A Withdrawn EP0013700A1 (de) 1979-01-22 1979-11-05 Baukasteneinheiten für Wärmetauscher oder dgl. und so erhaltener Wärmetauscher

Country Status (2)

Country Link
EP (1) EP0013700A1 (de)
IT (1) IT1110963B (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988005150A1 (en) * 1986-12-30 1988-07-14 W. Schmidt Gmbh & Co. Kg Heat exchanger
US4834172A (en) * 1988-01-12 1989-05-30 W. Schmidt Gmbh & Co. Kg Heat exchanger
EP0451697A1 (de) * 1990-04-12 1991-10-16 STAMPAL S.p.A. Modul für eine Anlage zur Herstellung von metallischen Legierungen im halbflüssigen oder pastösen Zustand
DE102004031519A1 (de) * 2004-01-22 2005-08-18 HST-Institut für Thermodynamik GmbH Wärmetauscher
US20100012296A1 (en) * 2008-07-17 2010-01-21 Cox Richard D Plastic heat exchanger with extruded shell

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1605987A (en) * 1926-11-09 Attorne
US1742833A (en) * 1926-01-13 1930-01-07 Sun Oil Co Heat exchanger
US1826253A (en) * 1930-06-25 1931-10-06 Brunswickkroeschell Company Liquid cooling apparatus
FR980414A (fr) * 1948-12-13 1951-05-11 Perfectionnements aux échangeurs de température pasteurisateurs ou ? tubulaires
US2713996A (en) * 1952-10-23 1955-07-26 Jr John E Pottharst Heat exchanger
US3171478A (en) * 1960-12-22 1965-03-02 John E Welks Heat exchanger
US3791326A (en) * 1970-07-07 1974-02-12 Dunham Bush Inc Method of forming a modular header for a tube within a tube heat exchanger

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1605987A (en) * 1926-11-09 Attorne
US1742833A (en) * 1926-01-13 1930-01-07 Sun Oil Co Heat exchanger
US1826253A (en) * 1930-06-25 1931-10-06 Brunswickkroeschell Company Liquid cooling apparatus
FR980414A (fr) * 1948-12-13 1951-05-11 Perfectionnements aux échangeurs de température pasteurisateurs ou ? tubulaires
US2713996A (en) * 1952-10-23 1955-07-26 Jr John E Pottharst Heat exchanger
US3171478A (en) * 1960-12-22 1965-03-02 John E Welks Heat exchanger
US3791326A (en) * 1970-07-07 1974-02-12 Dunham Bush Inc Method of forming a modular header for a tube within a tube heat exchanger

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988005150A1 (en) * 1986-12-30 1988-07-14 W. Schmidt Gmbh & Co. Kg Heat exchanger
EP0276521A1 (de) * 1986-12-30 1988-08-03 W. Schmidt GmbH & Co. KG Wärmeaustauscher
US4834172A (en) * 1988-01-12 1989-05-30 W. Schmidt Gmbh & Co. Kg Heat exchanger
EP0451697A1 (de) * 1990-04-12 1991-10-16 STAMPAL S.p.A. Modul für eine Anlage zur Herstellung von metallischen Legierungen im halbflüssigen oder pastösen Zustand
US5106062A (en) * 1990-04-12 1992-04-21 Stampal, S.P.A. Modular apparatus for producing metal alloys in semi-liquid or paste-like state
DE102004031519A1 (de) * 2004-01-22 2005-08-18 HST-Institut für Thermodynamik GmbH Wärmetauscher
US20100012296A1 (en) * 2008-07-17 2010-01-21 Cox Richard D Plastic heat exchanger with extruded shell
US8256503B2 (en) * 2008-07-17 2012-09-04 Cox Richard D Plastic heat exchanger with extruded shell

Also Published As

Publication number Publication date
IT1110963B (it) 1986-01-13
IT7919498A0 (it) 1979-01-22

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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AK Designated contracting states

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Effective date: 19810130

STAA Information on the status of an ep patent application or granted ep patent

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Effective date: 19820513