WO2016135432A1 - Systèmes de conduits résistant au feu - Google Patents
Systèmes de conduits résistant au feu Download PDFInfo
- Publication number
- WO2016135432A1 WO2016135432A1 PCT/GB2015/000064 GB2015000064W WO2016135432A1 WO 2016135432 A1 WO2016135432 A1 WO 2016135432A1 GB 2015000064 W GB2015000064 W GB 2015000064W WO 2016135432 A1 WO2016135432 A1 WO 2016135432A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- ducting system
- duct
- insulation lining
- flanges
- lining
- Prior art date
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
- F16L59/147—Arrangements for the insulation of pipes or pipe systems the insulation being located inwardly of the outer surface of the pipe
-
- 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
- F16L23/00—Flanged joints
- F16L23/12—Flanged joints specially adapted for particular pipes
- F16L23/14—Flanged joints specially adapted for particular pipes for rectangular pipes
-
- 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
- F16L23/00—Flanged joints
- F16L23/16—Flanged joints characterised by the sealing means
-
- 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
- F16L59/143—Pre-insulated pipes
-
- 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
- F16L59/145—Arrangements for the insulation of pipes or pipe systems providing fire-resistance
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/02—Ducting arrangements
- F24F13/0209—Ducting arrangements characterised by their connecting means, e.g. flanges
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/02—Ducting arrangements
- F24F13/0263—Insulation for air ducts
-
- 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
- F16L25/00—Constructive types of pipe joints not provided for in groups F16L13/00 - F16L23/00 ; Details of pipe joints not otherwise provided for, e.g. electrically conducting or insulating means
- F16L25/0009—Joints for pipes with a square or rectangular cross-section
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2221/00—Details or features not otherwise provided for
- F24F2221/30—Details or features not otherwise provided for comprising fireproof material
Definitions
- the present invention relates to fire resistant ducting systems and particularly to ducts for an air distribution system.
- Ducting systems for the extract & distribution of ventilating or heating air are widely used in offices, warehouses, shops and factories. In many installations, it is a requirement for the ducts to be fire resistant. Typically, this is done by first erecting the entire ducting system and when it is in place covering the outside of the ducting with a fire resistant insulating layer. There are a number of disadvantages with this arrangement. Since the ducting is typically placed high off the ground, it is necessary to erect scaffolding for the workers installing the fire resistant layer, but there is still a significant risk of falls which creates a safety hazard. The productivity of workers working under these conditions is inevitably lower than if they were working at ground level.
- fire resistant ducting system comprising at least two elongate duct sections having flanges at each end through which adjacent duct sections are secured together, an intumescent gasket being located between the two flanges, the duct sections being lined on the interior surface with a fire resistant insulation lining.
- each duct section has an outer skin and an inner skin which may be formed of galvanised sheet steel, with the insulation lining located there between each layer.
- an intumescent mastic sealing material forms a seal between the flange and the outer skin of the duct.
- the lining is formed of a foamed or expanded plastics material such as phenolic foam resin or mineral wool compounds or foam glass type insulation.
- the duct sections each has stiffening means extending transversely across the duct section intermediate the flanges and projecting into the insulation lining.
- the stiffening means it may be secured to the inner skin or outer skin of the duct section and preferably the stiffening means is located substantially at the midpoint of the duct section.
- the stiffening means projects only partially through the thickness of the insulation lining so that there is no heat bridge across the duct.
- the internal skin has an outwardly extending flange abutting the end of the insulation lining and extending only partially over the depth of the lining.
- an intumescent mastic material seals the joints between the insulation lining, the intumescent gasket and the flange.
- the outer peripheries of adjacent flanges are clamped together and sealed by means of a flange clamp.
- Figure 1 shows a sketch view of a ducting system
- Figure 2 shows a detail of a flange and the end of the duct section
- Figure 3 shows a cross-sectional view through the flanges of 2 duct sections are secured together
- FIG. 4 shows an alternative embodiment of the invention.
- FIG. 1 and 2 there is shown a plurality of duct sections 1 , 2, 3 of generally square or rectangular cross-section, each section having at its two ends flanges 4, extending from the duct sections 1, 2, 3 at 90° to the plane of the length of the duct section through which flanges 4 adjacent duct sections are fastened together.
- the duct sections each have an outer skin 5 formed of galvanised steel sheet, an inner skin 6 of galvanised sheet material and a fire resistant insulation lining 7 located between the two skins 5, 6 to provide a barrier to the transmission of heat and flames into and out of the duct.
- the insulation lining is typically formed of a laminated phenolic foamed or expanded plastics materia! or mineral wooi compounds or foam glass type insulation.
- each duct section has a galvanised steel outer skin 5 and a galvanised sheet steel inner skin 6 between which the insulation lining is sandwiched.
- the flanges 4 are connected to the outer skin by mechanical fixings 8 with an intumescent mastic 9 between the flange 4 itself and the outer skin 5.
- An intumescent gasket 10 approximately 6 mm thick is located between the two flanges 4 and extending to cover the ends of the inner and outer skins 5, 6 and the lining 7 to provide a heat resistant barrier.
- An intumescent mastic sealer 11 is located over the outer skin and extending down part of the outer face of the insulating lining 7between the lining 7 and the gasket 0 to provide a further flame resistant barrier.
- the inner skin has a flange 12 formed of the skin material extending to overlie the outer end of the insulating lining 7 but not extending to the outer skin 5 at the top of the lining.
- a transverse strengthening web 13 is secured to the inner skin 6 and extends across the inner skin 6 at a point adjacent the midpoint of each duct section to stiffen the duct section.
- the web 13 is formed of an L-shaped section having one limb 14 secured to the inner skin and the other limb 15 being pressed into the insulation lining 7 to extend partially through the lining. Again, no metal bridge is formed across the duct between the inner and outer skins 5, 6.
- the duct section 1 does not have a continuous inner skin that has an L-shaped flange element 18 having one limb 19 engaging the outer face of the insulation lining 7 and the second limb 20 engaging the inner face of the insulation lining 7 to maintain the lining in position adjacent the outer skin 5.
- a mastic seal 11 is provided between the flanges 4 and the outer skin 5 and contiguous faces of the insulation linings 7.
- the flange includes an outwardly extending web section 21 which, in the assembled condition shown, lies between the outer skin 5 and the insulation lining 7.
- the flange also includes an outer web 22 which lies outside the outer skin 5 so that the end of the outer skin 5 is inserted in the webs 21, 22 and the space between the two webs is filled with an intumescent mastic material.
- the flanges 4 are secured to the outer skin 5 by fastening means which passes through both the webs 21 , 22 and the outer skin 5, as shown.
- the outer web 22 has its outer edge upturned slightly to facilitate an outer enclosure cap 23 being secured thereto to fully enclose all the joints between the flanges and the two duct sections.
- the cap could be filled with an intumescent fire resistant material.
- the duct sections could be round or oval to suit the particular installation.
- the outer skin of the duct may be coated with an intumescent paint to provide further fire resistance.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Thermal Insulation (AREA)
Abstract
L'invention concerne un système de conduits résistant au feu qui comprend au moins deux sections de conduit (1, 2) allongées ayant des brides (4) au niveau de chaque extrémité à travers lesquelles des sections de conduit (1, 2) adjacentes sont fixées les unes aux autres, un joint d'étanchéité à intumescence (20) étant disposé entre les deux brides, les sections de conduit étant revêtues sur la surface intérieure avec un revêtement d'isolation (7) résistant au feu ou ayant une enveloppe extérieure (5) et une enveloppe intérieure (6), le revêtement d'isolation (7) étant situé entre celles-ci.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201580078544.2A CN107980086B (zh) | 2015-02-23 | 2015-02-23 | 防火管道系统 |
PCT/GB2015/000064 WO2016135432A1 (fr) | 2015-02-23 | 2015-02-23 | Systèmes de conduits résistant au feu |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/GB2015/000064 WO2016135432A1 (fr) | 2015-02-23 | 2015-02-23 | Systèmes de conduits résistant au feu |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2016135432A1 true WO2016135432A1 (fr) | 2016-09-01 |
Family
ID=52595360
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/GB2015/000064 WO2016135432A1 (fr) | 2015-02-23 | 2015-02-23 | Systèmes de conduits résistant au feu |
Country Status (2)
Country | Link |
---|---|
CN (1) | CN107980086B (fr) |
WO (1) | WO2016135432A1 (fr) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102016119899A1 (de) * | 2016-10-19 | 2018-04-19 | Wolf-Blechbearbeitung GmbH | Luftkanalmodul zur Herstellung einer Lüftungsanlage |
EP4235049A1 (fr) * | 2022-02-23 | 2023-08-30 | Wojciech Kazimierski | Tuyau de ventilation isolé de section rectangulaire |
US11835252B1 (en) | 2017-03-31 | 2023-12-05 | Albers Mechanical Contractors, Inc. | Foam core duct system protected by metal sleeves with integral flanges |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1177582A (en) * | 1966-07-28 | 1970-01-14 | I S Kahler & Co | Insulating Plate and Process for its Production. |
EP0151075A2 (fr) * | 1984-01-31 | 1985-08-07 | Rafael Garcia | Raccords à brides pour tuyauteries |
GB2241466A (en) * | 1989-12-12 | 1991-09-04 | F P Fire Protection Services L | Fire resistant materials |
US5165736A (en) * | 1988-08-12 | 1992-11-24 | Waal Casparus W De | Corner profile for coupling channel members |
WO1994009295A1 (fr) * | 1992-10-14 | 1994-04-28 | Corrosion Control Corp. D/B/A Pikotek | Joint protecteur destine a etre utilise dans des conduites d'ecoulement de fluide, et procede associe |
US5653482A (en) * | 1995-12-15 | 1997-08-05 | Ficchi, Jr.; Vincent | Seal system for duct network |
US20050116470A1 (en) * | 2003-11-13 | 2005-06-02 | Duffy William C. | Apparatus for a fire-rated duct |
US20100071797A1 (en) * | 2008-09-25 | 2010-03-25 | Jungers Jon W | Fire retardant air handling system ductwork component and method of manufacture |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE9703109D0 (sv) * | 1997-08-29 | 1997-08-29 | Trelleborg Viking As | Korrosionsbeständigt rörmaterial samt don för anslutning till rör av sådant material |
-
2015
- 2015-02-23 CN CN201580078544.2A patent/CN107980086B/zh not_active Expired - Fee Related
- 2015-02-23 WO PCT/GB2015/000064 patent/WO2016135432A1/fr active Application Filing
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1177582A (en) * | 1966-07-28 | 1970-01-14 | I S Kahler & Co | Insulating Plate and Process for its Production. |
EP0151075A2 (fr) * | 1984-01-31 | 1985-08-07 | Rafael Garcia | Raccords à brides pour tuyauteries |
US5165736A (en) * | 1988-08-12 | 1992-11-24 | Waal Casparus W De | Corner profile for coupling channel members |
GB2241466A (en) * | 1989-12-12 | 1991-09-04 | F P Fire Protection Services L | Fire resistant materials |
WO1994009295A1 (fr) * | 1992-10-14 | 1994-04-28 | Corrosion Control Corp. D/B/A Pikotek | Joint protecteur destine a etre utilise dans des conduites d'ecoulement de fluide, et procede associe |
US5653482A (en) * | 1995-12-15 | 1997-08-05 | Ficchi, Jr.; Vincent | Seal system for duct network |
US20050116470A1 (en) * | 2003-11-13 | 2005-06-02 | Duffy William C. | Apparatus for a fire-rated duct |
US20100071797A1 (en) * | 2008-09-25 | 2010-03-25 | Jungers Jon W | Fire retardant air handling system ductwork component and method of manufacture |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102016119899A1 (de) * | 2016-10-19 | 2018-04-19 | Wolf-Blechbearbeitung GmbH | Luftkanalmodul zur Herstellung einer Lüftungsanlage |
US11835252B1 (en) | 2017-03-31 | 2023-12-05 | Albers Mechanical Contractors, Inc. | Foam core duct system protected by metal sleeves with integral flanges |
EP4235049A1 (fr) * | 2022-02-23 | 2023-08-30 | Wojciech Kazimierski | Tuyau de ventilation isolé de section rectangulaire |
Also Published As
Publication number | Publication date |
---|---|
CN107980086B (zh) | 2021-01-26 |
CN107980086A (zh) | 2018-05-01 |
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Liner | DUCTWORK INSULATION |
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