Coiled Heat Exchanger with Small Radius Bent Tubes for Controlled Heat Treatment of High Viscosity Waxy Oil

International science and technology conference "Earth science"

Karimov, R.M.^1 ; Zaplatin, A.V.^1 ; Tashbulatov, R.R.^1

Department of Oil and Gas Pipeline Transportation and Storage, Ufa State Petroleum Technological University (USPTU), FSBEI HE, 1 Kosmonavtov St., Ufa

450062, Russia^1

关键词: Economic indicators;    Heat transfer rate;    High viscosities;    Pumping stations;    Shell and tube exchangers;    Structural strength;    Thermobaric conditions;    Treatment technologies;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/272/2/022193/pdf
DOI  :  10.1088/1755-1315/272/2/022193

来源: IOP

【 摘 要 】

The necessity of using the controlled heat treatment technology of oil instead of hot pumping is substantiated. A number of advantages of the "cold" transportation of oil are presented, as well as the main tasks that need to be solved for the successful usage of the above technology at the trunk oil pipelines. The main drawbacks of the heat exchanging equipment used at the heating and pumping stations of trunk pipelines for non-Newtonian solidifying waxy oils. Particular attention is paid to deposition and accumulation of wax in the flowing part of the equipment as well as the possibility of their safe quickly cleaning. The use of domestic twisted steel heat exchangers based on small radius bent tube is proposed. Constructive advantages of the proposed twisted heat exchangers are compared with the traditionally used equipment - shell-and-tube exchangers with horizontal and U-shaped arrangement of pipes, fully-welded plate heat exchangers, as well as finning air cooling units. For comparison, such technical and economic indicators as heat transfer rate, per surface area of heat exchange, complexity of operation, maintenance and repair, reliability and structural strength under cyclic loads in difficult thermobaric conditions are adopted. The issues of using twisted steel heat exchangers based on small radius bent tubes at trunk pipelines objects are considered taking into account successful experience of application in other industries.