DE617840C - Fine-grained heat exchanger - Google Patents

Fine-grained heat exchanger

Info

Publication number
DE617840C
DE617840C DEZ21295D DEZ0021295D DE617840C DE 617840 C DE617840 C DE 617840C DE Z21295 D DEZ21295 D DE Z21295D DE Z0021295 D DEZ0021295 D DE Z0021295D DE 617840 C DE617840 C DE 617840C
Authority
DE
Germany
Prior art keywords
sheet metal
fine
heat exchanger
flow
grained heat
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
Application number
DEZ21295D
Other languages
German (de)
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.)
Zimmermann & Co Komm Ges
Original Assignee
Zimmermann & Co Komm Ges
Publication date
Priority to DEZ21295D priority Critical patent/DE617840C/en
Application granted granted Critical
Publication of DE617840C publication Critical patent/DE617840C/en
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00Tubular elements; Assemblies of tubular elements
    • F28F1/10Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12Tubular 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
    • F28F1/24Tubular 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
    • F28F1/32Tubular 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 having portions engaging further tubular elements

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Description

Feingliedrige Wärmeaustauscher, die dazu dienen, Luft oder Gasen Wärme zuzuführen oder zu entziehen, mittels Dampf, Wasser, Sole u. dgl. werden heute fast ausschließlich als -Rippenrohrapparate oder Lamellenapparate gebaut. Wo es darauf ankommt,, auf einen beschränkten Raum einen Apparat mit großer Leistung unterzubringen, wie beispielsweise bei Kühlern für Fahrzeuge als Wasserrückkühler und bei Dampfbetrieb als Kondensatoren kommen nur Lamellenapparate in Betracht. Diese bestehen in der Regel aus senkrecht angeordneten Rohren, die in senkrecht dazu liegenden parallelen Blechstreifen eingezogen sind. Der Abstand dieser Blechstreifen beträgt nur einige Millimeter; er wird verschieden gewählt, je nach den vorliegenden Betriebsverhältnissen. Wegen seiner überragenden Wärmeleitfähigkeit eignet sich Kupfer am besten. Mit Rücksicht auf das Gewicht müssen die Blechstreifen sehr dünn sein, etwa Y10 bis 2/10 mm. Sie liegen in parallelen Ebenen und die Hauptschwierigkeit besteht darin, die vorderen Kanten gegen mechanische Beanspruchungen zu schützen. Zu diesem Zweck hat man die Kanten gewellt oder so abgebogen, daß die einzelnen Bleche untereinander verbunden werden und damit eine größere Festigkeif erhalten. Die bekannten . Verfahren zur Herstellung eines festen Verbandes lassen keine beliebige Wahl des Abstandes beim Einbau der Blechstreifen zu, sondern die mit einem bestimmten Werkzeug geformten Blechstücke ergeben nur einen bestimmten Abstand. Da Werkzeuge zur Herstellung der 'Blechstrerfen an sich schon außerordentlich kostspielig sind, wäre <es nicht dankbar, für jeden notwendigen Abstand besondere Werkzeuge zu beschaffen. Man muß daher auf Kosten einer günstigen Anpassung an die Betriebsverhältnisse auf eine Veränderung des Abstandes- der Blechstreifen verzichten. Ferner wird durch die bei den bekann-. ten Lamellenapparaten vorgenommenen Eindrücke und Abkantungen ein großer Teil des Luftdurchtrittsquerschnittes verdeckt, wie beispielsweise bei den Lamellenapparaten, bei denen die vorderen Blechkanten so geformt sind, daß sie ein aus einzelnen Rhomben bestehendes Gitterwerk bilden.Fine-grained heat exchangers, which are used to supply or extract heat from air or gases, by means of steam, water, brine and the like, are now almost exclusively built as finned tube devices or lamellar devices. Wherever it is important to accommodate a device with a high output in a limited space, such as in coolers for vehicles as water recoolers and in steam operation as condensers, only lamellar devices come into consideration. These usually consist of vertically arranged tubes that are drawn into parallel sheet metal strips that are perpendicular to them. The distance between these metal strips is only a few millimeters; it is chosen differently, depending on the prevailing operating conditions. Because of its superior thermal conductivity, copper is best. With respect to the weight of the sheet metal strips have to be very thin, about Y 10-2 / 10 mm. They lie in parallel planes and the main difficulty is to protect the front edges against mechanical stress. For this purpose, the edges have been corrugated or bent in such a way that the individual sheets are connected to one another and thus receive greater strength. The known. Processes for the production of a firm association do not allow any choice of the distance when installing the sheet metal strips, but the sheet metal pieces formed with a certain tool only result in a certain distance. Since tools for the production of the sheet metal bars are in themselves extremely expensive, it would not be grateful to procure special tools for every necessary distance. It is therefore necessary to forego changing the spacing of the sheet metal strips at the expense of a favorable adaptation to the operating conditions. Furthermore, by the well-known. th lamellar apparatuses made impressions and bevels a large part of the air passage cross-section covered, such as in the lamellar apparatus, in which the front sheet metal edges are shaped so that they form a latticework consisting of individual rhombuses.

Die vorliegende Erfindung ermöglicht die Bildung eines festen Verbandes der einzelnen Bleche 'untereinander, derart, daß eine beliebige Wahl des Abstandes der Blechstreifen bei Verwendung der gleichen Stanz- und Preßwerkzeuge möglich ist, und daß der Luftdurchttittsquerschnitt in keiner Weise verdeckt wird.The present invention enables the formation of a solid association of the individual Sheets' with each other, in such a way that any choice of the spacing of the sheet metal strips is possible when using the same punching and pressing tools, and that the air passage cross-section is not obscured in any way.

■ Die Formgebung der einzelnen, Blechstreifen ist aus den Zeichnungen der Abb. 1 und 2 ersichtlich. ■ The shape of the individual sheet metal strips can be seen from the drawings of Figs.

Die Abbildungen zeigen nur einen Teil emes Blockes mit zwei flachovalen Rohren 2, die die Blechstreifen 1 durchsetzen. Abb. 1 veranschaulicht einen Block mit der größten Entfernung der Bleche:^ Abb. 2 einen Block mit einem kleineren Abstand der Bleche b. Der feste Verband wird gebildet durch die Abkantungen 3, die ohne Blechabfall hergestellt werden können. Die Abkantungen des ersten Blechstreifens schieben sich über die Abkantungen des darunterliegenden Blechstreifens, und durch die nachträglich vorgenommene Verzinnung werden sämtliche Blechstreifen untereinander verbunden. Die Abkantungen 3 bilden senkrechte Wände, die verhindern, daß bei seitlich kommendem Luftstrom die Luft abgleitet, wodurch ebenfalls leine Leistungssteigerung gegenüber den bekannten Lamellenapparaten erzielt wird.The figures show only part of a block with two flat oval tubes 2, which penetrate the sheet metal strips 1. Fig. 1 shows a block with the greatest distance between the sheets: ^ Fig. 2 a block with a smaller distance between the sheets b. The solid association is formed by the folds 3, which can be produced without sheet metal waste. The folds of the first sheet metal strip slide over the folds of the sheet metal strip below, and all the metal strips are connected to one another by the subsequent tin-plating. The bevels 3 form vertical walls which prevent the air from sliding off when the air stream comes in from the side, which also results in an increase in performance compared to the known lamellar apparatus.

Claims (1)

Patentanspruch:Claim: Feingliedriger Wärmeaustauscher, bestehend aus runden oder anders geformten Rohren, die in untereinander parallel liegende Blechlamellen, von denen jede mehrere Rohre umfaßt, eingezogen sind, dadurch gekennzeichnet, daß die in der go Richtung des die Lamellen durchströmenden Kühl- oder Heizmittels vorderen und gegebenenfalls auch die hinteren Blechkanten mit Einschnitten und Abkantungen (3) versehen sind, derart, daß die Flächen der abgekanteten Blechteile in die Strömungsrichtung des Kühl- oder Heizmittels zu liegen kommen, und daß die Abkantungen sich dem. gewünschten Abstand entsprechend mehr oder weniger übereinanderschieben lassen und nach! der Verlötung einen festen Verband bilden.Fine-grained heat exchangers, consisting of round or differently shaped Tubes which are drawn into sheet metal lamellas lying parallel to one another, each of which comprises several tubes, characterized in that the flow in the direction of the lamellae Cooling or heating means front and optionally also the rear sheet metal edges are provided with incisions and folds (3) in such a way that the surfaces of the folded sheet metal parts in the direction of flow of the coolant or heating medium come to rest, and that the bevels are the. desired distance slide more or less on top of each other and gradually! the soldering form a solid association. Hierzu 1 Blatt Zeichnungen1 sheet of drawings
DEZ21295D Fine-grained heat exchanger Expired DE617840C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEZ21295D DE617840C (en) Fine-grained heat exchanger

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEZ21295D DE617840C (en) Fine-grained heat exchanger

Publications (1)

Publication Number Publication Date
DE617840C true DE617840C (en) 1935-08-27

Family

ID=7625336

Family Applications (1)

Application Number Title Priority Date Filing Date
DEZ21295D Expired DE617840C (en) Fine-grained heat exchanger

Country Status (1)

Country Link
DE (1) DE617840C (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE852249C (en) * 1949-09-14 1952-10-13 Adolf Dipl-Ing Schild Finned tube block
DE948440C (en) * 1952-01-08 1956-08-30 Houbenwerke Lamella heater for pressure-resistant gas water heater
DE970201C (en) * 1954-06-20 1958-08-28 Vaillant Joh Kg Method for connecting the lamellar block pipes of a gas water heater with their connection pipes and gas water heater manufactured according to this method
DE2756941A1 (en) * 1977-12-21 1979-06-28 Laengerer & Reich Kuehler Heat exchanger with tubes intersecting ribs - has bent and dimpled rib rims to define rib spacing

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE852249C (en) * 1949-09-14 1952-10-13 Adolf Dipl-Ing Schild Finned tube block
DE948440C (en) * 1952-01-08 1956-08-30 Houbenwerke Lamella heater for pressure-resistant gas water heater
DE970201C (en) * 1954-06-20 1958-08-28 Vaillant Joh Kg Method for connecting the lamellar block pipes of a gas water heater with their connection pipes and gas water heater manufactured according to this method
DE2756941A1 (en) * 1977-12-21 1979-06-28 Laengerer & Reich Kuehler Heat exchanger with tubes intersecting ribs - has bent and dimpled rib rims to define rib spacing

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