Simulation of systems for shock wave/compression waves damping in technological plants

International Workshop on Physical and Chemical Processes in Atomic Systems

Sumskoi, S.I.^1 ; Sverchkov, A.M.^2 ; Lisanov, M.V.^2 ; Egorov, A.F.^3

National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), Kashirskoye shosse 31, Moscow

115409, Russia^1

CJSC Scientific Technical Center of Industrial Safety Problems Research, Perevedenovsky Pereulok 13, Moscow

105082, Russia^2

Mendeleev University of Chemical Technology of Russia, Miusskaya Square 9, Moscow

125047, Russia^3

关键词: Compression waves;    Dangerous situations;    Emergency situation;    Environment pollution;    Increase in pressure;    Liquid hydrocarbons;    Pressure-relief systems;    Protective systems;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/751/1/012023/pdf
DOI  :  10.1088/1742-6596/751/1/012023

来源: IOP

【 摘 要 】

At work of pipeline systems, flow velocity decrease can take place in the pipeline as a result of the pumps stop, the valves shutdown. As a result, compression waves appear in the pipeline systems. These waves can propagate in the pipeline system, leading to its destruction. This phenomenon is called water hammer (water hammer flow). The most dangerous situations occur when the flow is stopped quickly. Such urgent flow cutoff often takes place in an emergency situation when liquid hydrocarbons are being loaded into sea tankers. To prevent environment pollution it is necessary to stop the hydrocarbon loading urgently. The flow in this case is cut off within few seconds. To prevent an increase in pressure in a pipeline system during water hammer flow, special protective systems (pressure relief systems) are installed. The approaches to systems of protection against water hammer (pressure relief systems) modeling are described in this paper. A model of certain pressure relief system is considered. It is shown that in case of an increase in the intensity of hydrocarbons loading at a sea tanker, presence of the pressure relief system allows to organize safe mode of loading.