SE8904369D0 - VAERMEVAEXLARE - Google Patents

VAERMEVAEXLARE

Info

Publication number
SE8904369D0
SE8904369D0 SE8904369A SE8904369A SE8904369D0 SE 8904369 D0 SE8904369 D0 SE 8904369D0 SE 8904369 A SE8904369 A SE 8904369A SE 8904369 A SE8904369 A SE 8904369A SE 8904369 D0 SE8904369 D0 SE 8904369D0
Authority
SE
Sweden
Prior art keywords
tubes
tube
ring
angle
shell
Prior art date
Application number
SE8904369A
Other languages
Swedish (sv)
Other versions
SE8904369L (en
Inventor
R Eriksson
Original Assignee
Elge 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 Elge Ab filed Critical Elge Ab
Priority to SE8904369A priority Critical patent/SE8904369L/en
Publication of SE8904369D0 publication Critical patent/SE8904369D0/en
Priority to DE69020876T priority patent/DE69020876T2/en
Priority to DK90850424.4T priority patent/DK0435839T3/en
Priority to EP90850424A priority patent/EP0435839B1/en
Priority to AT90850424T priority patent/ATE125033T1/en
Publication of SE8904369L publication Critical patent/SE8904369L/en
Priority to US07/873,621 priority patent/US5213156A/en

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
    • F28D7/024—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 tubes, 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)

Abstract

In a shell and tube heat exchanger, the tubes are arranged as several concentric rings of tubes. Each concentric ring of tubes is twisted through an angle to form a helix. The angle through which the tubes are turned is different for each ring of tubes so overall length of each tube remains constant. The direction of rotation of the rings of tubes may be opposed in different rings of tubes. In addn., the tubes are corrugated which increases turbulencee and hence heat transfer in shell and the tubes. The method of mfg. the heat exchanger is simplified by turning the ring of tubes through an angle to give a required length of tube. The fig. shows a heat exchanger with only one tube of an inner ring (1) and an outer ring (2) of tubes wound helically, in opposite directions, round a blind tube (8) within an outer shell (3). The end of each tube is widened at its end so each tube is close to its neighbours. The joints between the tube ends are welded or soldered to form an end plate (4) which connects it inlet and outlet connections (5). Each tube is corrugated along its length by slightly flattening the tube in alternating directions - pref. 90 deg. The shell medium flows through inlet and outlet connection (6). During mfr., a ring of tubes is turned until the required tube length is obtd.; i.e. angle of progression of the helix does not have to be calculated prior to mfr. (10pp Dwg.No.1/5)
SE8904369A 1989-12-27 1989-12-27 Arrangement and mfr. of shell and tube heat exchanger - with helically wound corrugated tubes, angle of helical progression need not be calculated SE8904369L (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
SE8904369A SE8904369L (en) 1989-12-27 1989-12-27 Arrangement and mfr. of shell and tube heat exchanger - with helically wound corrugated tubes, angle of helical progression need not be calculated
DE69020876T DE69020876T2 (en) 1989-12-27 1990-12-21 Heat exchanger and process for its manufacture.
DK90850424.4T DK0435839T3 (en) 1989-12-27 1990-12-21 Heat exchanger and method of manufacture thereof
EP90850424A EP0435839B1 (en) 1989-12-27 1990-12-21 Heat exchanger and a method for its fabrication
AT90850424T ATE125033T1 (en) 1989-12-27 1990-12-21 HEAT EXCHANGER AND METHOD FOR THE PRODUCTION THEREOF.
US07/873,621 US5213156A (en) 1989-12-27 1992-04-23 Heat exchanger and a method for its fabrication

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8904369A SE8904369L (en) 1989-12-27 1989-12-27 Arrangement and mfr. of shell and tube heat exchanger - with helically wound corrugated tubes, angle of helical progression need not be calculated

Publications (2)

Publication Number Publication Date
SE8904369D0 true SE8904369D0 (en) 1989-12-27
SE8904369L SE8904369L (en) 1991-06-28

Family

ID=20377876

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8904369A SE8904369L (en) 1989-12-27 1989-12-27 Arrangement and mfr. of shell and tube heat exchanger - with helically wound corrugated tubes, angle of helical progression need not be calculated

Country Status (1)

Country Link
SE (1) SE8904369L (en)

Also Published As

Publication number Publication date
SE8904369L (en) 1991-06-28

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Legal Events

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