Study On The Technology Of Thermal Oil Spraying Of Large Floating Roof Tank

In recent years,with the development of national strategy,more and more large floating roof tanks have been applied to various oil reservoirs.But large floating roof tank oil storage and the change rule of the temperature of the heating conditions determine only stays in the experimental stage,in the floating roof tank of oil spray hot oil process design and calculation of heating load has not completely can according to the results of the theory,most also can only be calculated through experience.In the face of such a serious problem,it is very important to study the technology of hot oil spraying.Through accurate grasp the storage and spraying oil temperature in the heating process,the scientific choice of storage tank heating temperature,capacity,etc.,reasonably confirm the heating load,for a large floating roof tank temperature maintenance process optimization to provide the reference.Determined comprehensively in this paper,on the basis of a large number of literature research,the low temperature limit of crude and temperature drop law of theoretical basis,on the premise of theory modeling and numerical simulation method,reference dimensionless paraphrase Gambit floating roof tank physical model is established.Based on the simulation calculation,the temperature variation rule of the floating roof tank under the condition of static storage and hot oil spraying was analyzed.Under the condition of storage tank static storage,the liquid level is under the working conditions of 30%,60% and 90% respectively.The temperature of the oil product center in the tank is analyzed,and the radial temperature and axial temperature are changed.By changing the Angle of the nozzle,changing the spray temperature and changing the amount of the oil,the temperature field is analyzed by changing the nozzle Angle.The implementation of large floating roof oil tank spray hot oil heating temperature maintenance technology for a comprehensive analysis and research,the process design optimization for large floating roof tank,oil storage safe and economic operation has important practical significance.