GB830708A - Heat insulating pipes - Google Patents

Heat insulating pipes

Info

Publication number
GB830708A
GB830708A GB3377957A GB3377957A GB830708A GB 830708 A GB830708 A GB 830708A GB 3377957 A GB3377957 A GB 3377957A GB 3377957 A GB3377957 A GB 3377957A GB 830708 A GB830708 A GB 830708A
Authority
GB
United Kingdom
Prior art keywords
sheath
pipe
pipes
thermal conductivity
alternatively
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
GB3377957A
Inventor
Erich Truemper
Otto Uhlmann
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.)
Hackethal Draht Kabel Werke AG
Original Assignee
Hackethal Draht Kabel Werke AG
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
Priority to AT686457A priority Critical patent/AT213178B/en
Application filed by Hackethal Draht Kabel Werke AG filed Critical Hackethal Draht Kabel Werke AG
Priority to GB3377957A priority patent/GB830708A/en
Priority to BE562069D priority patent/BE562069A/fr
Publication of GB830708A publication Critical patent/GB830708A/en
Expired legal-status Critical Current

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
    • F16L59/06—Arrangements using an air layer or vacuum
    • F16L59/075—Arrangements using an air layer or vacuum the air layer or the vacuum being delimited by longitudinal channels distributed around the circumference of a tube

Abstract

830,708. Heat insulating pipes. HACKETHAL DRAHT-UND KABEL-WERKE A.G. Oct. 29, 1957, No. 33779/57. Class 99(2). Heat insulation for a pipe 1 is provided by an unbroken synthetic plastic sheath 2 of low thermal conductivity formed with a plurality of spaces 4 filled with air or other gas. The sheath 2 is spaced from the pipe by trapezoidal projections 3 to minimize heat conduction; alternatively the projections may have a triangular cross-section, Fig. 2 (not shown). The material of the sheath may be polyvinyl chloride with a high K-value and may incorporate filling materials to reduce thermal conductivity and increase heat stability. The sheath may be produced by the screwinjection process, the mouth of the press being formed so as to produce a continuous sheath for a pipe passed through it ; alternatively, the sheaths may be manufactured separately and pushed over the pipes or, horizontally slit so that the slit may be welded or stuck after the sheath is placed in position. Coverings for bends or branch pipes can be made in two halves, the edges of which may be similarly secured.
GB3377957A 1957-10-23 1957-10-29 Heat insulating pipes Expired GB830708A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AT686457A AT213178B (en) 1957-10-23 1957-10-23 Heat-insulated conduit
GB3377957A GB830708A (en) 1957-10-29 1957-10-29 Heat insulating pipes
BE562069D BE562069A (en) 1957-10-24 1957-10-31

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3377957A GB830708A (en) 1957-10-29 1957-10-29 Heat insulating pipes

Publications (1)

Publication Number Publication Date
GB830708A true GB830708A (en) 1960-03-16

Family

ID=10357317

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3377957A Expired GB830708A (en) 1957-10-23 1957-10-29 Heat insulating pipes

Country Status (1)

Country Link
GB (1) GB830708A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2367975A1 (en) * 1976-05-27 1978-05-12 Tokan Kogyo Co Ltd SEAL FOR MULTI-WALL PIPES IN PLASTIC MATERIAL
FR2434331A1 (en) * 1978-08-24 1980-03-21 Kabel Metallwerke Ghh THERMALLY INSULATED PIPE
FR2532398A1 (en) * 1982-08-30 1984-03-02 Gen Connector Corp ENVELOPE FOR AIRCRAFT CHANNEL
US5103871A (en) * 1988-12-22 1992-04-14 Ngk Insulators, Ltd. One-end closed ceramic double tube and method of manufacturing the same
ES2555226A1 (en) * 2014-06-25 2015-12-29 Gas Natural Sdg, S.A Protection element for a channel and method of obtaining the protection element (Machine-translation by Google Translate, not legally binding)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2367975A1 (en) * 1976-05-27 1978-05-12 Tokan Kogyo Co Ltd SEAL FOR MULTI-WALL PIPES IN PLASTIC MATERIAL
FR2434331A1 (en) * 1978-08-24 1980-03-21 Kabel Metallwerke Ghh THERMALLY INSULATED PIPE
FR2532398A1 (en) * 1982-08-30 1984-03-02 Gen Connector Corp ENVELOPE FOR AIRCRAFT CHANNEL
US5103871A (en) * 1988-12-22 1992-04-14 Ngk Insulators, Ltd. One-end closed ceramic double tube and method of manufacturing the same
ES2555226A1 (en) * 2014-06-25 2015-12-29 Gas Natural Sdg, S.A Protection element for a channel and method of obtaining the protection element (Machine-translation by Google Translate, not legally binding)

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