Method for laying pipes for fluid under high pressure
AssigneesRadlinger Maschinen-und Anlagenbau GmbH, VNG-Verbuhdbetz Gas AG
InventorsJosef Rädlinger, Walter Weiss, Frank Heinze, Frank-Michael Kopping
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Abstract
A process for the laying of high pressure fluid pipelines is described, in which the existing fluid pipelines of different nominal pressure stages are used in order to provide a new assembled high pressure fluid pipeline of a standardized and higher nominal pressure stage. This is achieved by inserting a woven fabric hose of a correspondingly higher nominal pressure stage into the existing old fluid pipeline according to the woven fabric hose relining process.
Claims13
Process for the laying of high pressure fluid pipelines of a given nominal pressure stage inside an already existing old fluid pipeline of an old nominal pressure stage by inserting a woven fabric hose of the given nominal pressure stage into the old fluid pipeline, characterised in that the given nominal pressure stage of the woven fabric hose is higher than the old nominal pressure stage of the old fluid pipeline.
For a high-pressure fluid pipeline comprising at least two stages, a first of the at least two stages for conveying a fluid at a first nominal pressure, and a second of the at least two stages for conveying the fluid at a second nominal pressure, wherein the first nominal pressure is greater than the second nominal pressure, a method for increasing the throughput of the fluid pipeline, the method comprising the steps of:
- selecting a flexible hose capable of conveying the fluid at a desired nominal pressure not less than the first nominal pressure, wherein the flexible hose, when conveying the fluid at the desired nominal pressure and being unconstrained from expansion, has an outer diameter not greater than a minimum inner diameter of the pipeline;
- and
- inserting the flexible hose through the high-pressure fluid pipeline, whereby the flexible hose is capable of conveying the fluid through the pipeline at the desired nominal pressure.
Dependencies are inferred from the claim text.