Research on Fuel Temperature Control Method for Operation Safety of Railway Diesel Locomotive in Low Temperature Period.

This paper mainly studies the safety and cost control challenges faced by diesel locomotives operating in cold environments. In order to meet this challenge, the author solves the fuel system problem of railway diesel locomotive in cold environment by deeply understanding and optimizing the chemical properties of fuel oil, and by designing and implementing effective heating system. First, the author investigates and summarizes the chemical properties of the fuel and the ambient temperature required for the fuel. The change of chemical properties of fuel under normal and low temperature is verified by experiments, and the specific demand relationship between the safe operation of railway diesel locomotive and the chemical properties and temperature of fuel is clarified. These implements provide strong data support for the realization of low fuel combustion. Subsequently, based on the above research results, the author designs a fuel temperature control system that can meet the low-burning fuel demand. In the design process, the chemical properties of fuel and the particularity of the material and structure of fuel tank in a railway diesel locomotive are fully considered, and a fuel heating scheme is proposed. Finally, it is verified by actual measurement that the scheme has the ability of fine control of temperature and synchronous heating of multi-temperature zones, which meets the actual demand of low fuel combustion. [ABSTRACT FROM AUTHOR]