METHOD OF HYDRAULIC INVESTIGATION of heat network pipelines with elevated pressure

摘要

Method for hydraulic study of heating networks piping with high pressure, wherein the pipeline fragment is loaded with internal pressure of working fluid to failure with recording and the current parameters of the load, strain and temperature. Pre-fabricated thermo-hydraulic pressure generator is as a vessel the desired strength and rigidity, is provided with a heating element, and as a fragment of the investigated pipe a tubular sample is used, material, diameter and wall thickness of which are identical to material, diameter and wall thickness of the investigated pipe, with connecting the cavity of the sample and thermohydraulic pressure generator, with filling with working medium, the sample tube working volume cavity and thermohydraulic pressure generator are sealed, and to create the necessary pressure in the cavity of the sample programmable heating-cooling of working fluid in the cavity of thermohydraulic pressure generator is performed.