DE1751241A1 - Heat exchanger - Google Patents

Description

David Baiin Attorney's File 2002

55 »Route deFlorissant Ch-1206 Mustard - Schwele

Heat exchanger Sues.tr. eu patent

(Patent application B 50 448 Ia / 17 * 5

The main patent relates to a heat exchanger in which but surface enlargement the partition wall «wipe the ia heat exchange standing media are located at one

protruding firmly connected surface elements have »

those from swöi Ilotallon are different exist, one of which has a core and the other forms an enveloping coat, with only

Surface elements in the area of the larger temperature difference Bwinnhen den Hodien are formed with maximum WSna conductivity, while the following surface elements correspond to the grooved gradient of the temperature difference proportionally smaller VSrae- ! • have it skills «

The. Manufacturing costs of heat exchangers after the main = patent depend to a considerable extent on the machine and labor costs for the manufacture of the surfaces

BAD OflKälNAL

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elements accumulate. Object of the present invention let therefore the creation of surface elements that are calibrated, oho · impair their health, age substantially can be manufactured at a lower cost.

To solve the rorgen-called task · «lad dia ¥ ärmeauetaufloher of the kind mentioned in the introduction daduroh marked, At that time there are surface elements ana the same basic material, nanlioh a flat band old parallel running edges made of a, preventive good conductive metal, velohee ringarua la vaalichen old same Wall thickness old dea other, preferably dea veniger good conductive metal unsheathed 1st, beetehen and

In the direction of the falling oradients of the temperature differences * proportionally smaller biokens have, bo daeo aich with substantially the same bandwidth for all surface elements in the we B ent high smooth surfaces per unit of length result.

Both used for the surface elements Metals is eo eich Toraugawelae, among other things, copper as all iron material and among other things a heat-resistant steel as aleeentelung · - aaterial.TorBUgeveiae iet da * al · basic material used flat band, wetm ee auian from lupfer beeteht.ait one hits ·· Bedside metal bow on the front white Hickel yareehen.

Another feature of the invention is a method for the production of the basic material, which is bedded in, that a cut wfiraeleltendeis Mstali

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Zyllsderförmig sheathed wire of kreieföraigem cross-section with a flat band of korrisionsbeetändlgem metal and after Schllessen the longitudinal seam of the wrapping Handes CSU a flat Bimatallband with parallel edges is rolled out, wherein preferably the same direction beveled Längakanten of Umhüllungebandes λ s; u. An overlapping longitudinal seam are sueasnnerigeftihrt "

Next © The details of the invention also emerge following description and the attached drawing » in a preferred embodiment of the invention is illustrated by way of example.

In the drawing show: Flg. 1 a sectioned partial view of a thermal

exchanger with surface elements designed according to the invention ,

Pig, 2 iron plan view to Fig. 2, Pig. 3 and 4 are schematic side views of one another

Roller arrangement »with which the base material for the surface elements is produced and

Pig. 5 to 8 enlarged cross-sections gwa & ss the section lines 5-5, (5-S _fc 7-7 wad 8-8 der Uff · 1. aA

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The Pig. 1 and 2 show four sections I ₉ H ₉ III and IT of a heat exchanger in which a partition wall 22 'between the heat exchange existing Meälon is provided on one side with surface elements 50. These surface elements 50 are reversed by the one fluid in the direction of the arrow indicated in Pig, 1.

When "made to measure" the surface elements are made by a bimetallic wire 51 went out «in the in Flg. 3 4 and 4 processed and attached but production of the individual surface elements in lengths is cut.

The bimetallic wire 51, initially formed with a circular cross section, contains an indiscriminate lupf core 52 which is encased with a steel jacket 53. May This covering may be a flaohee steel strip initially whose longitudinal edges are abgesohrigt the same direction, so that this Längkanten in the enclosure de "Eupferkernes 52 st & overlapping longitudinal seam sohlieseen · For example, duroh a known per se to the envelope ansohllessende Tereohwelesung or other · Catfish made sure of that

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that the calibrated overlapping edges the Umhüllungsbanäes enter into a metallic connection.

laugh at the passage of the bimetal wires 51 through a Walson arrangement 54 is created as örun & matarial for the Oberfläcbanölemente 50 a bimetal strip 55 old smooth Obtain © r ~ and üunterflschen ur.d rounded, parallel edges c TJm Bändoi * in the desired thickness The bimetallic strip 55 is subsequently replaced by more Whale arrangement at the nip Toa V / alsönanorünung su V / t \ lKananoränung «agsr wircL Eine this whale arrangement is in de? Pig »4 daredolled and provided with the small Besugszelchen 54 '. From the gap this whale rope arrangement 54 * exits a penis belt 55 welohoa thinner int than diia BimetaHband 55 the Pig »3»

A repeated passage of the metal strip 55 through Roller arrangements with an internally decreasing roller gap leads to a progressive reduction in the band dioke with a simultaneous extension of the Bano.es. To note It is, however, that with such a valas process the width of the band does not change noticeably, as one would from a Comparison of the jig. -> up to 8 can be seen »in which dl · The width of the old “oak V is marked” This results in all of the essential features that the

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lines of In PIg. 5 Me 8 geseilten Bandquersohnitte la main "remain the same so that Oberfiaohenelemente" the au "aolohen different dleken bands are abgeschnitton, la substantially the same © Auseenfläohe per unit length · The remarkable alone Dimenslonierungaunteraohled" wipe 0berfläohenelenenten ₉ ausgevalBten from varying degrees BlmetallbBndern were made »Is therefore - based on the same measurements - the thickness and, accordingly, the amount of sacrifice. However, since it is precisely the amount of copper that determines the thermal conductivity of the surface elements "follows" that 51 surface elements with different thermal conductivity can be produced from the same bimetal wire.

This result is achieved by the heat exchanger sections filled with surface elements 50 according to Hg. 1 and sections I _9, IX, III and 17 with the animals having different thermal conductivity. The surface elements 50 of the first group I have the same. 5 has the greatest thickness and therefore the greatest thermal conductivity. The surface elements 50 of the last group IT have, as shown in Hg.

From the description above and the attached

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Drawing can be seen that the present invention because of their "particularly easy executability, without complicated factory eye and. Machines, for industrial Evaluation is very valuable. As so often, meritorious inventions and developments cannot be exploited economically, due to the high costs incurred for them, as the economic factor always present 1st. So now here is an invention is present, which completely removes economic obstacles and enables the use of a more economical and compact heat exchanger * according to the main patent, a patentable heat exchanger should be available Invention not in doubt.

The present invention makes it possible to achieve the Cost of a Wänaeauatgleichhera of the introductory mentioned | Lower kind by more than 506 su without in any catfish

the mode of operation and the efficiency of the heat exchangers to affect ρ

• AO ORIGINAL

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Claims (3)

Darid Dalin attorney's file 2002 55, Bout de PlorlMant Oh-1206 0 «nf - Schwel · Claims ψ ί 1) W & raeauetauscher, bai dam sau: the partition wall swleohen the one in the heat exchange Media at least Bound Oberfiaohenelement · has, the aue sw ·! Metals are subject to thermal conductivity, Clay where one forms a core and the other forms an enveloping jacket, with only Surface elomonte in the area of the greatest temperature differens swleohen the media with maximum WBrme-I conductivity are formed, wtthrond the following surface elements corresponding to the filing Gradients of the temperature differences proportionally smaller According to the patent (Pat.Anm. S 50 448 Ia / 17f), increasing thermal conductivities "have been identified by the fact that ·· • official surface elements (50) also Base material, nBmlloh a flat band with parallel The running edges from the one, vomiawlse highly conductive metal (52), • 2 - 108903/0706 which all around essentially old smooth wall thickness other _t before »ng« vet * · nit deftVwenlger well-conductive metal (53) is sheathed, exist and in the direction of the falling gradient of the temperature differencesB proportionally decreasing dioks (Fig. 5 to 8) have, so that at essentially same bandwidth (W) for all surface elements (50) essentially the same surfaces per unit length result. 2. Heat exchanger according to claim 1, characterized in that that the highly thermally conductive metal (52) is copper and that less conductive metal (53) Eiaen is. 3. Heat exchanger according to claim 1 and 2, characterized in that the flat strip used as the base material, if it is made of copper on the outside, it is provided with a metal cover, preferably made of Ilokel. 4 · Process but production of the basic material for the Surface elements of heat exchangers according to claim 1 to 3, characterized in that a wire made of metal with good thermal conductivity is circular Cross-section covered with a flat band of corrosion-resistant metal in the shape of a cylinder and, after the longitudinal seam of the covering band has been closed, on a flat one Bimetal strip with parallel edges is rolled out ^ 5 · method »according to claim 4, characterized in that the gloJLqhfJLnnli ^ measured length edges an envelope bandec bu elnor overlapping Lnsteam? or «inl {; t 109800/0708 »AD OfUOlNAL no Blank page