5×10~4 m^3浮顶罐温度分布变化规律

The temperature distribution laws of 5×10~4 m^3 floating roof tank

浮顶罐是油品储存的主要设备,明确油品在罐内的温度分布变化规律,准确预测油温变化对于油库安全、低耗运行具有重要意义。以5×10~4 m^3浮顶罐为测试对象,通过现场跟踪测温的方式研究罐内原油温度场变化特性。结果表明:当外界温度低于油温时,罐内温度呈现反浴盆曲线,存在明显的核心恒温区;当外界温度高于油温时,罐内温度呈现导热分布,罐内核心恒温区消失。研究结果可为节能减排、科学制定浮顶罐加热运行方案及预防凝罐事故提供技术参考。

The floating roof tank is the main equipment for oil storage. To figure out the temperature distribution laws of oils in the tank and accurately predict the oil temperature change is of great significance to guarantee the low-consumption safe operation of tank farms. In this paper, a 5×10^4 m^3 floating roof tank was taken as the test object. And the change characteristics of crude oil temperature field inside the tank were investigated by means of field temperature track and measurement. It is shown that when the ambient temperature is lower than the oil temperature, the temperature inside the tank displays the anti-bathtub curve, and there is an obvious core constant temperature zone. When the ambient temperature is higher than the oil temperature, the temperature inside the tank presents the thermal conductivity distribution, and the core constant temperature zone disappears. The research results can provide the technical basis for the energy saving and emission reduction, the scientific establishment of the floating roof tank heating operation scheme and the prevention of condensing tank accident.