Повышение универсальности вагонов-цистерн для перевозки нефтехимических грузов

Abstract

Objective: Characterise the methods for optimisation of tank wagon fl eet. Determine the advantages obtained by the proprietor from wagon modernization. Establish the opportunity for increasing universality of rolling stock on the example of modernisation of tank wagons designed to transport petrochemical cargoes. Methods: Parameters of tank wagons for petrochemical cargo transportation in operation were compared to those of a modernised wagon. Structural elements of a wagon that require modernisation to be consistent with current regulatory requirements were identifi ed. Results of calculations and tests were analysed, and wagon certifi cation was carried out. Results: Ways of modernisation of tank wagons are shown. Primary wagon structural elements that require modernisation are described. Strength, fatigue strength and stability calculations were carried out. Safety valve throughput capacity is calculated, and requirements for this index during transportation of petrochemical cargoes. Optimum design for a drain device is established. A series of engineering prototype verifi cation tests in situ was run, including durability tests which confi rmed the possibility of safe operation of a modernised wagon throughout its service life. The wagon was certifi ed for compliance with railway rolling stock safety requirements. Practical importance: The studies conducted confi rm possibility of modernisation of petroleum and oil tank wagons for transportation of a wide range of cargoes. This would allow create a project for tank wagon modernisation. The novel wagon type is included in the Cargo Wagon Design Reference Guide. Proprietor can implement modernisation of wagons in accordance with the developed modernisation project