Investigation of the motion processes of wastewater in sewerage of high-rise buildings

¹ Voronezh State Technical University, Moscow Avenue, 14, Voronezh, 394026, Russia
² Moscow Aviation Institute (National Research University), Volokolamskoe highway, 4, Moscow, 125993, Russia ;
³ Moscow State University of Civil Engineering, Yaroslavskoe sh. 26, Moscow, 129337, Russia

^* Corresponding author: pomogaeva8@mail.ru

Abstract

When designing, constructing and operating sewage pipelines in high-rise buildings, issues of failure-free operation of a network arise. Investigation of the processes of wastewater moving allows identifying problem areas during operation, assessing the possibility of obstructions and breakdowns of plumbing traps on the gravity drainage sections of the pipeline. The article performs the schemes of the water outflow from the floor sewer into the riser, including the places where the riser is bent, of air delivery to the working riser under the change of the direction of drain movement with the dropout line set-up, with the installation of an automatic anti-vacuum valve, with the installation of the ventilation pipeline. Investigations of the process of sewage waste flow in a sewage riser were carried out, in order to select the appropriate structure. The authors consider structure features of some sections of sewerage in high-rise buildings. The exhaustion value in the riser is determined from the rarefactions that occur below the compressed cross-section of the riser and the loss of the air flow pressure coming from the atmosphere into the riser during the deflooding of the liquid. Preventing the formation of obstructions and breakdowns of plumbing traps is an integral part of sewage networks.