DE415695C - Heat exchange double pipe - Google Patents

Heat exchange double pipe

Info

Publication number
DE415695C
DE415695C DEK92434D DEK0092434D DE415695C DE 415695 C DE415695 C DE 415695C DE K92434 D DEK92434 D DE K92434D DE K0092434 D DEK0092434 D DE K0092434D DE 415695 C DE415695 C DE 415695C
Authority
DE
Germany
Prior art keywords
heat exchange
double pipe
exchange double
pipe
tube
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
DEK92434D
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.)
PAUL KNUER
Original Assignee
PAUL KNUER
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 PAUL KNUER filed Critical PAUL KNUER
Priority to DEK92434D priority Critical patent/DE415695C/en
Application granted granted Critical
Publication of DE415695C publication Critical patent/DE415695C/en
Expired legal-status Critical Current

Links

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
    • F28D7/02—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 helically coiled
    • F28D7/026—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 helically coiled the conduits of only one medium being helically coiled and formed by bent members, e.g. plates, the coils having a cylindrical configuration

Landscapes

  • 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)

Description

Wärmeaustauschdoppelrohr. Es sind Doppelrohre für Wärmeaustauschzwecke, insbesondere für Verflüssiger oder Verdampfer von Kältemaschinen, bekannt, bei denen das primäre Kältemittel den ringförmigen Raum zwischen Innen- und Außenrohr durchströmt, während der sekundäre Wärmeträger (das Kühlwasser oder die Sole) die Außenwände des Außenrohres und die Innenwände des Innenrohres bespült. Auch ist es bekannt, dem primären Kältemittel hierbei einen schraubenartigen Weg vorzuschreiben, dadurch daß zwischen Innen- und Außenrohr ein Draht, dessen Durchmesser gleich dem`Zwischenraute zwischen Innen-und Außenrohr ist, schraubenartig gelagert ist. Die vorliegende Erfindung bezieht sich ebenfalls auf ein solches Doppelrohr mit Schraubendrahteinlage. Die Neuerung besteht darin, daß die Entfernung der Windungen des Schraubendrahtes nach einer Richtung hin ständig abnimmt, wodurch auf einfachste Weise der dem durchströmenden Kältemittel zur Verfügung stehende Querschnitt verringert wird. Hierdurch wird bei solchen Wärmeaustauschern, in denen bestimmungsgemäß das hindurchströmende Kältemittel von dem gasförmigen in den flüssigen Zustand versetzt (kondensiert) wird oder umgekehrt, eine günstigere Ausnutzung des Querschnittes ermöglicht. Je nachdem ob das durch ein solches Rohr geleitete Kältemittel verflüssigt oder vergast werden soll, ist selbstverständlich der Einlaß an die Seite des größeren bzw. kleineren Querschnittes zu verlegen.Heat exchange double pipe. They are double pipes for heat exchange purposes, in particular for condensers or evaporators of refrigeration machines, known in which the primary refrigerant flows through the annular space between the inner and outer pipe, while the secondary heat transfer medium (the cooling water or the brine) the outer walls of the outer pipe and the inner walls of the inner pipe are flushed. It is also known the primary refrigerant to prescribe a screw-like way here, in that there is a wire between the inner and outer tube, the diameter of which is equal to the diamond in between between the inner and outer tube is mounted in a screw-like manner. The present invention also refers to such a double tube with a screw wire insert. the Innovation is that the removal of the turns of the screw wire after steadily decreasing in one direction, which in the simplest way is that of the flowing through Refrigerant available cross section is reduced. This is at such heat exchangers in which the refrigerant flowing through is intended is transferred from the gaseous to the liquid state (condensed) or vice versa, allows a more favorable utilization of the cross-section. Depending on whether that through such a pipe-directed refrigerant is to be liquefied or gasified of course the inlet on the side of the larger or smaller cross section relocate.

Es ist zwar an und für sich ebenfalls bekannt, den ringförmigen Querschnitt eines Wärmeaustauschdoppelrohres zu dem erwähnten Zweck nach einer Seite hin zu verjüngen, jedoch mit Mitteln, die viel umständlicher und kostspieliger sind, was um so mehr ins Gewicht fällt, als ein Doppelrohrwärmeaustauscher eine ganze Anzahl derartiger Einzelrohre zu umfassen pflegt.It is also known per se, the annular cross section a heat exchange double pipe for the mentioned purpose to one side rejuvenate, but with means that are much more cumbersome and expensive what all the more important as a double-tube heat exchanger is quite a number such individual tubes tend to include.

In der Zeichnung ist ein erfindungsgemäßes Doppelrohr mit Außenrohr a, Innenrohr i und dem nach oben enger liegenden Schraubendraht d dargestellt.In the drawing, a double tube according to the invention is shown with an outer tube a, an inner tube i and the screw wire d that is closer to the top.

Claims (1)

PATENTANSPRUCH: Wärmeaustauschdoppelrohr, bei welchem zwischen Außen- und Innenrohr ein schraubenförmig verlaufender Draht eingelegt ist, so daß das durchströmende Kältemittel einen schraubenförmigen Weg beschreibt, dadurch gekennzeichnet, daß die Ganghöhe, d. h. die Entfernung der Schraubenwindungen des Einlegedrahtes (d), und damit der dem Kältemittel zur Verfügung stehende Querschnitt zwischen Außenrohr (a) und Innenrohr (i) nach dem einen Ende des Wärmeaustauschers hin abnimmt. PATENT CLAIM: Heat exchange double pipe in which a helically running wire is inserted between the outer and inner pipe so that the refrigerant flowing through describes a helical path, characterized in that the pitch, ie the distance between the helical turns of the inlay wire (d), and thus the dem Refrigerant available cross-section between outer tube (a) and inner tube (i) decreases towards one end of the heat exchanger.
DEK92434D 1925-01-14 1925-01-14 Heat exchange double pipe Expired DE415695C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEK92434D DE415695C (en) 1925-01-14 1925-01-14 Heat exchange double pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK92434D DE415695C (en) 1925-01-14 1925-01-14 Heat exchange double pipe

Publications (1)

Publication Number Publication Date
DE415695C true DE415695C (en) 1925-06-30

Family

ID=7237382

Family Applications (1)

Application Number Title Priority Date Filing Date
DEK92434D Expired DE415695C (en) 1925-01-14 1925-01-14 Heat exchange double pipe

Country Status (1)

Country Link
DE (1) DE415695C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1000840B (en) * 1951-01-17 1957-01-17 Willi Posselt Heat exchange element
DE1030368B (en) * 1952-05-23 1958-05-22 Saba Gmbh Condenser in absorption refrigeration machines working with pressure equalizing auxiliary gas
EP0062691A1 (en) * 1981-04-15 1982-10-20 Elpag Ag Chur Heat exchanger

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1000840B (en) * 1951-01-17 1957-01-17 Willi Posselt Heat exchange element
DE1030368B (en) * 1952-05-23 1958-05-22 Saba Gmbh Condenser in absorption refrigeration machines working with pressure equalizing auxiliary gas
EP0062691A1 (en) * 1981-04-15 1982-10-20 Elpag Ag Chur Heat exchanger

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