EP0062729B1 - Vorrichtung mit Rohren - Google Patents

Vorrichtung mit Rohren Download PDF

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Publication number
EP0062729B1
EP0062729B1 EP81850068A EP81850068A EP0062729B1 EP 0062729 B1 EP0062729 B1 EP 0062729B1 EP 81850068 A EP81850068 A EP 81850068A EP 81850068 A EP81850068 A EP 81850068A EP 0062729 B1 EP0062729 B1 EP 0062729B1
Authority
EP
European Patent Office
Prior art keywords
conduits
conduit
outer pipe
fluid
windings
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
EP81850068A
Other languages
English (en)
French (fr)
Other versions
EP0062729A1 (de
Inventor
Thorleif Möll
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.)
Atlas Copco AB
Original Assignee
Atlas Copco AB
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 Atlas Copco AB filed Critical Atlas Copco AB
Priority to DE8181850068T priority Critical patent/DE3173599D1/de
Priority to EP81850068A priority patent/EP0062729B1/de
Publication of EP0062729A1 publication Critical patent/EP0062729A1/de
Application granted granted Critical
Publication of EP0062729B1 publication Critical patent/EP0062729B1/de
Expired legal-status Critical Current

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Classifications

    • 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
    • F28F1/34—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 obliquely
    • F28F1/36—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 obliquely the means being helically wound fins or wire spirals
    • 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
    • F28D7/022—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 two or more media in heat-exchange relationship being helically coiled, the coils having a cylindrical configuration

Definitions

  • the present invention relates to a device for conducting a fluid, for example liquid state freon or another liquid, comprising a conduit through which the fluid is conducted in order to be heated or cooled by means of a medium flowing around the conduit.
  • a fluid for example liquid state freon or another liquid
  • a device of this kind is disclosed in DE-A-1501573. This comprises a conduit around which a thread has been coiled with spaced windings.
  • a further known device is disclosed in DE-U--7818067. This comprises three heat transfer tubes placed in an outer tube.
  • the inner tubes are provided with ridges which extend as rings around the tube.
  • the object of the invention is to provide a device of the kind described above, in which the heat transmission between the fluid which is conducted through the conduit and the medium flowing around the conduit is better than in the devices previously known. At the same time flow losses should be kept low.
  • each heat transfer conduit with a helically extending element such that the conduits are spaced radially a distance substantially equal to the diameter of the helically extending element, whereby a low loss flow is enabled between the conduits.
  • conduits positioned together in parallel with each other are provided in an outer pipe, through which the flowing medium is conducted, and that said outer pipe and the conduits positioned therein extend helically.
  • the device according to the invention By means of the device according to the invention there is provided a more effective heat transmission between the outer side of the conduit and the medium flowing around the conduit.
  • the conduits can be positioned close to each other inside the outer pipe without causing the outer surfaces of the conduits to contact each other and thereby to obstruct the flowing of the medium outside the conduits.
  • Afreon liquid is fed in the direction of the arrow 13 through an expansion valve 7 and a distribution head 8 to pipes 5 and conduits 3 connected therewith.
  • the windings of the elements 4 are spaced from each other.
  • the conduits 3 extend in common into a wider outer pipe 2 preferably consisting of polyethylene and extending as a helix 1.
  • the lower end of the helix 1 is connected with a pipe section 15, by means of a hose clamp 14, the pipe section 15 having an outlet 10 for a medium, preferably water, which is supplied to the outer pipe 2 at the upper end thereof.
  • the pipes 5 extend through a sealed end portion 6 and into the conduits 3.
  • the upper end of the helix 1 is connected with a pipe section 9 by means of a hose clamp 14, the pipe section 9 having an inlet 12 for a hot medium, preferably water, and an outlet 10 for the heated freon liquid, the pipes 3 being fixed by means of a seal end portion 6.
  • a hot medium preferably water

Landscapes

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

Claims (2)

1. Vorrichtung zur Führung einer ersten Flüssigkeit in Wärmeaustausch-Beziehung zu einer zweiten Flüssigkeit, bestehend aus einer Anzahl von Leitungsrohren (5), deren jedes die erste Flüssigkeit enthält, einem die Rohrleitungen tragenden und die um die Rohrleitungen herumfließende zweite Flüssigkeit enthaltenden Außenrohr (2) und einem im wesentlichen um jede der Rohrleitungen schraubenförmig herumgewundenen fadenförmigen Element (4), dessen Windungen um jede Rohrleitung in Längsrichtung voneinander entfernt liegen, sodaß die um die Rohrleitung herumfließende zweite Flüssigkeit eine Umlaufbewegung vollführt, wobei dieses Element im wesentlichen über seine gesamte Länge und mit einer Seite ständig mit der Rohrleitung in Berührung steht, wobei dieses Element wenigstens teilweise vom Außenrohr längs einer gemeinsamen Längsebene entfernt ist, welche radial durch die Rohrleitung hindurchgeht, wodurch Flüssigkeit dazwischen fließen kann, und wobei die Rohrleitungen im wesentlichen parallel zur Längsachse des Außenrohres verlaufen und in radialer Richtung zum Außenrohr durch die schraubenförmig verlaufenden Elemente im Abstand voneinander gehalten werden, dadurch gekennzeichnet, daß die Windungen eines jeden Elementes (4) in axialer Richtung gegenüber den entsprechenden Windungen auf einer benachbarten Rohrleitung versetzt sind, wodurch die Windungen auf einer Rohrleitung an einer benachbarten Rohrleitung anliegen und dadurch benachbarte Rohrleitungen im Außenrohr um einen Abstand voneinander trennen, der im wesentlichen gleich dem Durchmesser eines zwischenliegenden Elementes ist, sodaß diese Windungen einen sich im wesentlichen über die gesamte Länge der Elemente erstreckenden durchgehenden Spielraum zwischen benachbarten Rohrleitungen begrenzen und die zweite Flüssigkeit zwischen benachbarten Rohrleitungen durch diesen durchgehenden Spielraum hindurchleitbar ist.
2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß das Außenrohr (2) und die Rohrleitungen (5) eine Spirale (1) bilden.
EP81850068A 1981-04-15 1981-04-15 Vorrichtung mit Rohren Expired EP0062729B1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE8181850068T DE3173599D1 (de) 1981-04-15 1981-04-15 A conduit device
EP81850068A EP0062729B1 (de) 1981-04-15 1981-04-15 Vorrichtung mit Rohren

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP81850068A EP0062729B1 (de) 1981-04-15 1981-04-15 Vorrichtung mit Rohren

Publications (2)

Publication Number Publication Date
EP0062729A1 EP0062729A1 (de) 1982-10-20
EP0062729B1 true EP0062729B1 (de) 1986-01-29

Family

ID=8188731

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81850068A Expired EP0062729B1 (de) 1981-04-15 1981-04-15 Vorrichtung mit Rohren

Country Status (2)

Country Link
EP (1) EP0062729B1 (de)
DE (1) DE3173599D1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3432717A1 (de) * 1984-09-06 1986-03-13 gwk Gesellschaft Wärme Kältetechnik mbH, 5883 Kierspe Waermeerzeuger zum erwaermen fluessiger stroemungsmittel
JP4266660B2 (ja) 2003-02-18 2009-05-20 キヤノン株式会社 投射型表示光学系および投射型画像表示装置
ITUD20090143A1 (it) * 2009-08-07 2011-02-08 F D E S R L Dispositivo scambiatore di calore per impianti di condizionamento termico

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1501573A1 (de) * 1966-06-16 1970-05-27 Mecano Bundy Gmbh Mit wendelfoermig angeordneten Rippen aus Draht versehenes Waermeaustauscherrohr und Verfahren zu seiner Herstellung
US3856079A (en) * 1968-01-31 1974-12-24 E Geppelt Finned tube heat exchange conductor
FR2169742A1 (de) * 1972-01-31 1973-09-14 Damois Pierre
DE7818067U1 (de) * 1978-06-16 1978-10-26 R. & G. Schmoele Metallwerke Gmbh & Co Kg, 5750 Menden Waermeaustauscher
JPS553502A (en) * 1978-06-21 1980-01-11 Toshiba Corp Heat exchanger

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Patents Abstracts of Japan, vol. 4, no. 29, 14 March 1980, page 19M2 *

Also Published As

Publication number Publication date
EP0062729A1 (de) 1982-10-20
DE3173599D1 (de) 1986-03-13

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