GB1228223A - - Google Patents

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Publication number
GB1228223A
GB1228223A GB1228223DA GB1228223A GB 1228223 A GB1228223 A GB 1228223A GB 1228223D A GB1228223D A GB 1228223DA GB 1228223 A GB1228223 A GB 1228223A
Authority
GB
United Kingdom
Prior art keywords
bend
pipe
ribs
water
outside
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
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 filed Critical
Publication of GB1228223A publication Critical patent/GB1228223A/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
    • F16L43/00—Bends; Siphons
    • F16L43/001—Bends; Siphons made of metal
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15D—FLUID DYNAMICS, i.e. METHODS OR MEANS FOR INFLUENCING THE FLOW OF GASES OR LIQUIDS
    • F15D1/00—Influencing flow of fluids
    • F15D1/02—Influencing flow of fluids in pipes or conduits
    • F15D1/04—Arrangements of guide vanes in pipe elbows or duct bends; Construction of pipe conduit elements or elbows with respect to flow, specially for reducing losses in flow

Abstract

1,228,223. Pipe bends. SIMON-CARVES Ltd. 15 Sept., 1969 [1 Nov., 1968], No. 51941/68. Heading F2G. A pipe bend has, at least in the vicinity of the outside of the bend, a plurality of internally located ribs which extend longitudinally of the pipe bend. In the embodiment described, eight rectangular-section, radially projecting ribs are evenly spaced around the whole of the inner wall of the pipe bend and are integral with it. The ribs oppose the formation, by centrifugal forces, of closed loop systems of secondary flow. They are particularly useful when a two phase mixture, e.g. a steam/water mixture is transported, as they ensure maintenance of annular flow, the water forming a continuous film over the entire internal surface of the pipe. The surface on the outside of the bend, which would otherwise be dry, is thereby protected from collision with droplets of water, thus reducing errosion and/or corrosion.
GB1228223D 1968-11-01 1968-11-01 Expired GB1228223A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5194168 1968-11-01

Publications (1)

Publication Number Publication Date
GB1228223A true GB1228223A (en) 1971-04-15

Family

ID=10462051

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1228223D Expired GB1228223A (en) 1968-11-01 1968-11-01

Country Status (1)

Country Link
GB (1) GB1228223A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2542825A1 (en) * 1983-03-15 1984-09-21 Flonic Sa TRANQUILIZER APPARATUS FOR REGULARIZING THE PROFILE OF FLOWING FLUID SPEEDS
GB2167826A (en) * 1984-11-30 1986-06-04 Dudley Thomas Ltd Plumbing fittings
EP0493302A1 (en) * 1990-12-24 1992-07-01 United Technologies Corporation Mechanism to reduce pressure losses in angled conduits
WO1995025897A1 (en) * 1994-03-24 1995-09-28 Koch Engineering Company, Inc. Laminar flow elbow system
FR2867239A1 (en) * 2004-03-05 2005-09-09 Peugeot Citroen Automobiles Sa Gas stream flow guiding device for spark ignition engine, has conduit comprising in inner surface of its bent part, parallel ribs and/or slots, for assuring guiding of gas stream flow across conduit
FR2970529A1 (en) * 2011-01-18 2012-07-20 Alstom Hydro France CURVED PIPE BELONGING TO A HYDRAULIC MACHINE, DISTRIBUTION ASSEMBLY FOR PELTON TURBINE WHEEL AND HYDRAULIC MACHINE

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2542825A1 (en) * 1983-03-15 1984-09-21 Flonic Sa TRANQUILIZER APPARATUS FOR REGULARIZING THE PROFILE OF FLOWING FLUID SPEEDS
EP0123569A1 (en) * 1983-03-15 1984-10-31 Schlumberger Industries Tranquilizing device for stabilising the speed rate of a flowing fluid
GB2167826A (en) * 1984-11-30 1986-06-04 Dudley Thomas Ltd Plumbing fittings
EP0493302A1 (en) * 1990-12-24 1992-07-01 United Technologies Corporation Mechanism to reduce pressure losses in angled conduits
WO1995025897A1 (en) * 1994-03-24 1995-09-28 Koch Engineering Company, Inc. Laminar flow elbow system
FR2867239A1 (en) * 2004-03-05 2005-09-09 Peugeot Citroen Automobiles Sa Gas stream flow guiding device for spark ignition engine, has conduit comprising in inner surface of its bent part, parallel ribs and/or slots, for assuring guiding of gas stream flow across conduit
FR2970529A1 (en) * 2011-01-18 2012-07-20 Alstom Hydro France CURVED PIPE BELONGING TO A HYDRAULIC MACHINE, DISTRIBUTION ASSEMBLY FOR PELTON TURBINE WHEEL AND HYDRAULIC MACHINE
WO2012098095A1 (en) * 2011-01-18 2012-07-26 Alstom Hydro France Curved conduit pertaining to a hydraulic machine, distribution group for pelton turbine wheel, and hydraulic machine
CN103429886A (en) * 2011-01-18 2013-12-04 阿尔斯通再生能源技术公司 Curved conduit pertaining to hydraulic machine, distribution group for pelton turbine wheel, and hydraulic machine
RU2557835C2 (en) * 2011-01-18 2015-07-27 АЛЬСТОМ Риньюэбл Текнолоджиз Curvilinear channel relating to hydraulic machine, distribution assembly for impeller of pelton turbine and hydraulic machine

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees