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WO1993016321A1 - Systeme de tuyaux isolants - Google Patents

Systeme de tuyaux isolants Download PDF

Info

Publication number
WO1993016321A1
WO1993016321A1 PCT/FI1993/000050 FI9300050W WO9316321A1 WO 1993016321 A1 WO1993016321 A1 WO 1993016321A1 FI 9300050 W FI9300050 W FI 9300050W WO 9316321 A1 WO9316321 A1 WO 9316321A1
Authority
WO
WIPO (PCT)
Prior art keywords
pipe
insulation
ring
outer pipe
flange
Prior art date
Application number
PCT/FI1993/000050
Other languages
English (en)
Inventor
Reijo Hautala
Original Assignee
R. Hautala Ky
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 R. Hautala Ky filed Critical R. Hautala Ky
Priority to DE4390465A priority Critical patent/DE4390465C2/de
Priority to DE4390465T priority patent/DE4390465T1/de
Publication of WO1993016321A1 publication Critical patent/WO1993016321A1/fr
Priority to NO943001A priority patent/NO303847B1/no
Priority to SE9402707A priority patent/SE503728C2/sv
Priority to DK095694A priority patent/DK170719B1/da

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L59/00—Thermal insulation in general
    • F16L59/14—Arrangements for the insulation of pipes or pipe systems
    • F16L59/16—Arrangements specially adapted to local requirements at flanges, junctions, valves or the like
    • F16L59/18—Arrangements specially adapted to local requirements at flanges, junctions, valves or the like adapted for joints
    • F16L59/184—Flanged joints

Definitions

  • the invention relates to an insulation pipe system comprising insulated piping components, such as insulation pipes, fire dampers, dampers, measurement connections and branch tubings, said pipe component com ⁇ prising an inner pipe, an outer pipe and a space between them for insulation material.
  • insulated piping components such as insulation pipes, fire dampers, dampers, measurement connections and branch tubings
  • the nsulation pipe system of the invention is particularly suitable for use in heat, fire and sound insulated ventilation systems which are achieved by connecting insulation pipes of different lengths and forms to each other.
  • the pipes have typically a diameter within the range of 100 to 1200 mm.
  • the insulation pipe system of the invention can also be used for other applications than ventilation systems.
  • the insulation pipe system can thus be used for conducting other gases, and even water and other liquids.
  • insulation pipes of ventilation systems are still often achieved by insulating a pipe in which a fluid is to flow by insulation material in situ, and mounting an outer casing around the insula ⁇ tion material. The method is laborious and cannot there- fore be recommended for places where piping must be installed in a short time.
  • Figure 2 is a view along arrows II - II of Figure 1, and
  • the straight insulation pipe 1 of Figure 1 is depicted as cut off so that its both, completely similar ends are visible.
  • the insulation pipe 2 on the left is of the same type and has completely similar ends as the insulation pipe 1.
  • the insulation pipe 1 comprises an inner pipe 3 made of steel, an outer pipe 4 made of steel, and a space between them filled with insulation material 5. Both ends of the insulation pipe 1 are provided with an end flange 6 which is made of steel and covers the space between the outer and inner pipe so that the insulation material 5, for example mineral wool, cannot escape.
  • the surface 12 functions as a clamping surface owing to the fact that the inner circumference 13 of the clamping ring 11 slides along the surface 12 when the clamping ring is clamped (and its diameter is made smaller), whereby the insulation pipes 1, 2 to be connected to each other are tightened or pressed against each other.
  • the angle ⁇ may vary within the range of about 40 to 70° while this function is maintained. If the angle is too great, the axial clamping distance is very short, which sets greater requirements for the tolerances of the insulation pipe components and complicates installa ⁇ tion of the clamping ring. If the angle is small, there is the danger that the inner circumference 13 of the clamping ring is not able to slide along the surface 12.
  • the flange ring 9 can be easily achieved on the outer pipe 4 by shaping this.
  • the flange ring 9 also comprises a surface 14 on the level of the end flange 6, whereby the insulation ring 8 is sufficiently well surrounded so that it remains stationary in the different treatment steps of the insulation pipe.
  • the annular shoulders 15 function as centering means preventing axial displacements of the inner pipe 3 in relation to the outer pipe 4.
  • the distance of the annular shoulder 15 from the end of the insulation pipe is 15 to 50%, preferably 20 to 40% of the diameter of the outer pipe 4.
  • a coupling or inter ⁇ mediate bushing 16, indicated by a dashed line, can be installed between the insulation pipes 1 and 2 to be connected to each other if this is considered to improve the durability and safety of the joint.
  • the significance of the intermediate bushing 16 in improving safety resides in that the joint will hold even if the clamping ring 11 should open for some reason.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Insulation (AREA)

Abstract

Système de tuyaux isolants comportant des éléments de tuyauterie isolés tels que des tuyaux isolants (1, 2), des clapets coupe-feu, des clapets, des raccords de mesure et des tuyaux d'embranchement. Lesdits éléments de tuyauterie isolés comportent un tuyau intérieur (3), un tuyau extérieur (4) et un espace compris entre les tuyaux et destiné à contenir un matériau isolant (5). Afin de réaliser facilement et rapidement des systèmes de ventilation ou analogue ayant une résistance au feu suffisante, les deux extrémités d'un élément de tuyauterie sont pourvues d'une bride terminale (6) recouvrant sensiblement l'espace compris entre les tuyaux intérieur et extérieur, et étant reliée aux tuyaux intérieur (3) et extérieur (4) de manière à centrer le tuyau intérieur par rapport au tuyau extérieur (4). Ladite bride terminale est reliée indirectement au tuyau extérieur par l'intermédiaire de sa circonférence externe (7) de telle sorte qu'elle soit fixée à un anneau isolant (8) relié à un anneau de bride (9) et prévu à la circonférence du tuyau extérieur afin que la bride terminale n'entre pas en contact direct avec l'enveloppe extérieure de l'élément de tuyauterie.
PCT/FI1993/000050 1992-02-17 1993-02-16 Systeme de tuyaux isolants WO1993016321A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DE4390465A DE4390465C2 (de) 1992-02-17 1993-02-16 Isolierrohrsystem
DE4390465T DE4390465T1 (de) 1992-02-17 1993-02-16 Isolierrohrsystem
NO943001A NO303847B1 (no) 1992-02-17 1994-08-12 R°rsystem med ferdigisolerte r°r og komponenter
SE9402707A SE503728C2 (sv) 1992-02-17 1994-08-12 Isoleringsrörsystem
DK095694A DK170719B1 (da) 1992-02-17 1994-08-17 Isolerende rørsystem

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI920678 1992-02-17
FI920678A FI92098C (fi) 1992-02-17 1992-02-17 Eristysputkikanavajärjestelmä

Publications (1)

Publication Number Publication Date
WO1993016321A1 true WO1993016321A1 (fr) 1993-08-19

Family

ID=8534679

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI1993/000050 WO1993016321A1 (fr) 1992-02-17 1993-02-16 Systeme de tuyaux isolants

Country Status (7)

Country Link
AU (1) AU3501093A (fr)
DE (2) DE4390465T1 (fr)
DK (1) DK170719B1 (fr)
FI (1) FI92098C (fr)
NO (1) NO303847B1 (fr)
SE (1) SE503728C2 (fr)
WO (1) WO1993016321A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997039274A1 (fr) * 1996-04-12 1997-10-23 Jyvaskylan Ivk-Tuote Oy Dispositif de fixation et procede de fixation de tubes engages les uns dans les autres
CN1313761C (zh) * 2002-06-10 2007-05-02 乔治费希尔管路系统公开股份有限公司 用于预先绝热管路的管道接头模制部
GB2510324A (en) * 2012-11-14 2014-08-06 Michael Dalgarno Ducting systems
US11713903B2 (en) 2014-05-07 2023-08-01 Michael Ronald Dalgarno Ducting systems
US11835252B1 (en) 2017-03-31 2023-12-05 Albers Mechanical Contractors, Inc. Foam core duct system protected by metal sleeves with integral flanges

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2200682A1 (de) * 1970-08-06 1972-07-20 Wavin Bv Rohrverbindung fuer isolierte Rohre
DE2530549A1 (de) * 1975-07-09 1977-01-27 Peter Trieb Abschlussmanschette
DE2758516A1 (de) * 1977-12-28 1979-07-05 Frantisek Sigmund Rohrleitung aus waermeisolierten rohren und verfahren zu deren herstellung
FI74530B (fi) * 1986-04-16 1987-10-30 Matti Virtanen Aenda foer isolerad, vid tvaersnitt rektangulaer luftkonditioneringskanal.
CH671084A5 (en) * 1986-11-12 1989-07-31 Schmidlin Ag Connector for insulated pipes - has inner coupling sleeve and outer clip fastening flanges

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3611578A1 (de) * 1985-05-06 1986-11-06 Rudolf Flender KG, 5900 Siegen Isolierrohr

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2200682A1 (de) * 1970-08-06 1972-07-20 Wavin Bv Rohrverbindung fuer isolierte Rohre
DE2530549A1 (de) * 1975-07-09 1977-01-27 Peter Trieb Abschlussmanschette
DE2758516A1 (de) * 1977-12-28 1979-07-05 Frantisek Sigmund Rohrleitung aus waermeisolierten rohren und verfahren zu deren herstellung
FI74530B (fi) * 1986-04-16 1987-10-30 Matti Virtanen Aenda foer isolerad, vid tvaersnitt rektangulaer luftkonditioneringskanal.
CH671084A5 (en) * 1986-11-12 1989-07-31 Schmidlin Ag Connector for insulated pipes - has inner coupling sleeve and outer clip fastening flanges

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997039274A1 (fr) * 1996-04-12 1997-10-23 Jyvaskylan Ivk-Tuote Oy Dispositif de fixation et procede de fixation de tubes engages les uns dans les autres
CN1313761C (zh) * 2002-06-10 2007-05-02 乔治费希尔管路系统公开股份有限公司 用于预先绝热管路的管道接头模制部
US7708321B2 (en) 2002-06-10 2010-05-04 Georg Fischer Rohrleitungssysteme Ag Pipe-connector molded part for pre-insulated pipe conduits
GB2510324A (en) * 2012-11-14 2014-08-06 Michael Dalgarno Ducting systems
GB2510324B (en) * 2012-11-14 2018-09-19 Ronald Dalgarno Michael Duct for an air distribution system
US11713903B2 (en) 2014-05-07 2023-08-01 Michael Ronald Dalgarno Ducting systems
US11835252B1 (en) 2017-03-31 2023-12-05 Albers Mechanical Contractors, Inc. Foam core duct system protected by metal sleeves with integral flanges

Also Published As

Publication number Publication date
DE4390465C2 (de) 2003-04-24
SE503728C2 (sv) 1996-08-12
SE9402707D0 (sv) 1994-08-12
NO303847B1 (no) 1998-09-07
FI920678A7 (fi) 1993-08-18
NO943001L (no) 1994-09-20
DE4390465T1 (de) 1995-01-26
NO943001D0 (no) 1994-08-12
DK170719B1 (da) 1995-12-18
SE9402707L (sv) 1994-09-20
AU3501093A (en) 1993-09-03
FI920678A0 (fi) 1992-02-17
FI92098B (fi) 1994-06-15
FI92098C (fi) 1994-09-26

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