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IE800532L - Insulation of pipes - Google Patents

Insulation of pipes

Info

Publication number
IE800532L
IE800532L IE800532A IE53280A IE800532L IE 800532 L IE800532 L IE 800532L IE 800532 A IE800532 A IE 800532A IE 53280 A IE53280 A IE 53280A IE 800532 L IE800532 L IE 800532L
Authority
IE
Ireland
Prior art keywords
layer
foamed
plastic
inner layer
density
Prior art date
Application number
IE800532A
Other versions
IE49291B1 (en
Original Assignee
Kendall & Co
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 Kendall & Co filed Critical Kendall & Co
Publication of IE800532L publication Critical patent/IE800532L/en
Publication of IE49291B1 publication Critical patent/IE49291B1/en

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
    • F16L59/143—Pre-insulated pipes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/20—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of indefinite length
    • B29C44/22—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of indefinite length consisting of at least two parts of chemically or physically different materials, e.g. having different densities
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/20—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of indefinite length
    • B29C44/32—Incorporating or moulding on preformed parts, e.g. linings, inserts or reinforcements
    • B29C44/322—Incorporating or moulding on preformed parts, e.g. linings, inserts or reinforcements the preformed parts being elongated inserts, e.g. cables
    • B29C44/324—Incorporating or moulding on preformed parts, e.g. linings, inserts or reinforcements the preformed parts being elongated inserts, e.g. cables the preformed parts being tubular or folded to a tubular shape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • 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
    • F16L59/02—Shape or form of insulating materials, with or without coverings integral with the insulating materials
    • F16L59/029—Shape or form of insulating materials, with or without coverings integral with the insulating materials layered
    • 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
    • F16L59/08—Means for preventing radiation, e.g. with metal foil
    • 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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Insulation (AREA)
  • Laminated Bodies (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Molding Of Porous Articles (AREA)
  • Flanged Joints, Insulating Joints, And Other Joints (AREA)
  • Insulators (AREA)
  • Motor Or Generator Cooling System (AREA)
  • Linear Motors (AREA)
  • Details Of Indoor Wiring (AREA)

Abstract

Metal e.g. steel pipe insulated with foamed polyurethane plastic is made in a multi-stage continuous process in which an inner layer of polyurethane plastic is foamed on the pipe and at least partially cured to form low-density foam having high heat insulating capacity, and an outer layer of polyurethane plastic is foamed on the inner layer to provide a foam layer of higher density, the outer layer having a density at least 25% greater than that of the adjacent inner layer, the thickness of the outer layer being 5 to 30% of the total thickness of the foamed insulation. The inner layer may be subdivided into two or more layers having different physical properties. A common protective layer e.g. polythene/butyl adhesive tape, epoxy, heat actuated adhesive or asphalt may be first applied to the pipe. An outer protective layer of paper, butuminous inactive or plastic e.g. polythene, polypropylene or epoxy may be applied. The plastic may be heat shrinkable. [GB2046865A]
IE532/80A 1979-03-15 1980-03-14 Insulation of pipe by multi-stage application of foam IE49291B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US2079279A 1979-03-15 1979-03-15

Publications (2)

Publication Number Publication Date
IE800532L true IE800532L (en) 1980-09-15
IE49291B1 IE49291B1 (en) 1985-09-04

Family

ID=21800609

Family Applications (1)

Application Number Title Priority Date Filing Date
IE532/80A IE49291B1 (en) 1979-03-15 1980-03-14 Insulation of pipe by multi-stage application of foam

Country Status (31)

Country Link
JP (1) JPS55133951A (en)
AR (1) AR225305A1 (en)
AT (1) AT377227B (en)
AU (1) AU532291B2 (en)
BE (1) BE882206A (en)
BR (1) BR8001461A (en)
CA (1) CA1160914A (en)
CH (1) CH635182A5 (en)
CS (1) CS220765B2 (en)
DD (1) DD149955A5 (en)
DE (1) DE3006545C2 (en)
DK (1) DK151913C (en)
EG (1) EG14165A (en)
ES (1) ES8102909A1 (en)
FR (1) FR2451261A1 (en)
GB (1) GB2046865B (en)
GR (1) GR67219B (en)
HU (1) HU178150B (en)
IE (1) IE49291B1 (en)
IT (1) IT1193927B (en)
MX (1) MX150570A (en)
NL (1) NL186831C (en)
NO (1) NO161208C (en)
NZ (1) NZ193125A (en)
PH (1) PH15434A (en)
PL (1) PL133428B1 (en)
PT (1) PT70943A (en)
SE (1) SE447414B (en)
SU (1) SU1351520A3 (en)
YU (1) YU66780A (en)
ZA (1) ZA80949B (en)

Families Citing this family (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8005255A (en) * 1980-09-19 1982-04-16 Wavin Bv PLASTIC TUBE PART PROVIDED WITH A PLASTIC FOAM INSULATION LAYER.
FI77102C (en) * 1981-05-25 1989-01-10 Kabel Metallwerke Ghh Process for producing a heat insulated conduit
GB2120747A (en) * 1982-05-20 1983-12-07 Hepworth Plastics Ltd Pipes for pipelines
AU590713B2 (en) * 1984-06-07 1989-11-16 Asahi Chemical Industry Co. Ltd. Heat insulating structures for low-temperature or cryogenic pipings
DE3530187C2 (en) * 1985-08-23 1994-12-01 Marquet & Cie Noel Method and device for producing thermally insulated conduits
JPH0814359B2 (en) * 1985-09-02 1996-02-14 株式会社日本メデイクス Tube for cryogenic piping of beauty and medical equipment
DE3534241A1 (en) * 1985-09-26 1987-04-02 Rheinhold & Mahla Gmbh Process for producing an insulation of in situ polyurethane foam for pipelines, containers and columns
DE4118362A1 (en) * 1991-06-05 1992-12-10 Bayer Ag METHOD OF ISOLATING PIPES
DE4421817A1 (en) * 1994-06-22 1996-01-04 Bayer Ag Insulating of tubes, esp. for long-distance heat supply
AUPM903694A0 (en) 1994-10-25 1994-11-17 Adams, Kevin Multipurpose composite tubing
NO962627L (en) * 1996-06-20 1998-01-19 Per Ludvig Engesaeter Anti-corrosion, thermal storage, thermally resistant and thermally insulating coating / casing
RU2152553C1 (en) * 1998-11-24 2000-07-10 Центральный научно-исследовательский институт им. акад. А.Н. Крылова Heat-insulating coat for horizontal pipe line
GB2365096B (en) * 1999-05-26 2003-04-09 Thermotite As Steel pipe with heat insulation for deep-sea pipelines and method of producing it
RU2182868C1 (en) * 2001-05-31 2002-05-27 Закрытое акционерное общество Научно-производственное предприятие "МАЯК-93" Method for manufacture of coextruded multilayer pipe, device for its realization and pipe so produced
RU2274798C2 (en) * 2004-05-07 2006-04-20 Открытое акционерное общество "ОКБ Сухого" Method and device for heat insulation of article
RU2276756C1 (en) * 2004-12-17 2006-05-20 Владимир Аркадьевич Устюгов Heat insulated pipe for heat and/or water supply systems
EP1909018B1 (en) * 2006-10-05 2014-08-20 Georg Fischer Rohrleitungssysteme AG Pipe connection with thermal insulation and procedure for the manufacture of the pipe connecting part
RU2326291C1 (en) * 2006-12-28 2008-06-10 Ольга Владимировна Устюгова Thermal-insulated pipe for heating and/or water-supply systems of building and structures
DE202007004596U1 (en) 2007-03-26 2007-05-31 Rehau Ag + Co Plastic pipe
ITMI20090939A1 (en) * 2009-05-27 2010-11-28 Dow Brasil Sa PIPES FOR DEEP WATER USE
AT508464B1 (en) * 2009-06-18 2012-02-15 Lambda One Isoliertechnik Gmbh METHOD AND APPARATUS FOR PRODUCING PREFORMED INSULATION BODIES WITH IMPROVED HEAT INSULATION AND LIGHT WEIGHT
EA018041B1 (en) * 2010-07-22 2013-05-30 Общество С Ограниченной Ответственностью "Смит-Ярцево" Pipeline heat insulation
AU2012344044A1 (en) * 2011-11-28 2014-06-19 Basf Se Method for producing insulated casing pipes in a continuous production process
US20130327466A1 (en) * 2012-06-08 2013-12-12 Pellegrino J. Pisacreta Insulated tubing
JP6080404B2 (en) * 2012-06-28 2017-02-15 旭有機材株式会社 Piping cover
EP2953776B1 (en) * 2013-02-08 2017-12-27 Logstor A/S Method for producing an insulated pipe in corrugated casing
CN103557404B (en) * 2013-11-06 2015-11-25 北京豪特耐管道设备有限公司 The insulated piping that a kind of production method of insulated piping and employing the method are produced
CN103587215B (en) * 2013-11-11 2015-08-05 镇江市高等专科学校 Multiple degrees of freedom flotation tube foamed material heat fused abutted equipment
CN103968161A (en) * 2014-05-23 2014-08-06 张楠 Rubber hose
CN104295809A (en) * 2014-11-05 2015-01-21 广西金盛科技发展有限公司 PVC drainage pipe
CN106917933A (en) * 2016-03-28 2017-07-04 齐克先 A kind of prefabricated direct-buried thermal insulation pipe of material hole with reinforcing chip and manufacture method
CN105972329A (en) * 2016-05-25 2016-09-28 安徽普氏生态环境工程有限公司 Novel water supply pipe
CN107020774B (en) * 2017-04-05 2019-02-22 绵阳高新区三阳塑胶有限责任公司 A kind of multi-layer multi heat preserving and insulating material and preparation method thereof
CN109506064A (en) * 2018-12-25 2019-03-22 哈尔滨朗格斯特节能科技有限公司 Hard polyaminoester spraying winds prefabricated direct-buried heat insulation elbow with high density polyethylene (HDPE)
CN110402870B (en) * 2019-09-02 2021-09-07 福建亚通新材料科技股份有限公司 Pipeline for deep sea cultivation
IT201900020781A1 (en) * 2019-11-11 2021-05-11 Ecotech S R L Thermo-insulated tube

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4820967B1 (en) * 1967-05-11 1973-06-25
NL6903871A (en) * 1969-03-13 1970-09-15
US3657036A (en) * 1969-10-02 1972-04-18 Nat Gypsum Co Method for production of rigid polyurethane articles
US3644168A (en) * 1970-06-12 1972-02-22 Upjohn Co Varied density polyisocyanurate foam structure
US3814659A (en) * 1971-02-01 1974-06-04 Upjohn Co Novel compositions
US3802948A (en) * 1971-06-09 1974-04-09 Hitachi Shipbuilding Eng Co Thermal insulation for cryogenic containers
US3782998A (en) * 1971-11-30 1974-01-01 Atlantic Richfield Co Method of insulating cold substrates and the insulated substrates
GB1357765A (en) * 1971-12-03 1974-06-26 Bauakademie Ddr Insulated pressure pipe
US3979818A (en) * 1972-05-30 1976-09-14 Shaw Pipe Industries Ltd. Method of thermally insulating pipe
BE885751Q (en) * 1976-08-27 1981-02-16 Kendall & Co METHOD AND APPARATUS FOR APPLYING A FOAMABLE LIQUID TO A CYLINDRICAL OBJECT
JPS5472558A (en) * 1977-11-21 1979-06-11 Sekisui Plastics Pipe cover

Also Published As

Publication number Publication date
NO800730L (en) 1980-09-16
AT377227B (en) 1985-02-25
BE882206A (en) 1980-07-01
PL133428B1 (en) 1985-06-29
SE447414B (en) 1986-11-10
YU66780A (en) 1983-09-30
PL222668A1 (en) 1980-12-01
NL186831B (en) 1990-10-01
DK151913B (en) 1988-01-11
CH635182A5 (en) 1983-03-15
DK111480A (en) 1980-09-16
PH15434A (en) 1983-01-18
ATA105380A (en) 1984-07-15
GR67219B (en) 1981-06-24
CS220765B2 (en) 1983-04-29
DE3006545A1 (en) 1980-09-25
IT8020535A1 (en) 1981-09-12
JPS55133951A (en) 1980-10-18
EG14165A (en) 1983-09-30
SU1351520A3 (en) 1987-11-07
GB2046865B (en) 1983-06-15
SE8001923L (en) 1980-09-16
HU178150B (en) 1982-03-28
NL8001541A (en) 1980-09-17
NZ193125A (en) 1983-11-30
MX150570A (en) 1984-05-30
NO161208C (en) 1989-07-26
ES490303A0 (en) 1981-02-16
CA1160914A (en) 1984-01-24
GB2046865A (en) 1980-11-19
FR2451261A1 (en) 1980-10-10
AU5597380A (en) 1980-09-18
IT8020535A0 (en) 1980-03-12
FR2451261B1 (en) 1984-10-26
IE49291B1 (en) 1985-09-04
NO161208B (en) 1989-04-10
DK151913C (en) 1988-07-04
DD149955A5 (en) 1981-08-05
ES8102909A1 (en) 1981-02-16
IT1193927B (en) 1988-08-31
DE3006545C2 (en) 1986-08-21
NL186831C (en) 1991-03-01
PT70943A (en) 1980-04-01
BR8001461A (en) 1980-11-11
ZA80949B (en) 1981-02-25
AR225305A1 (en) 1982-03-15
AU532291B2 (en) 1983-09-22

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