进口植物油混舱分卸比例分割偏差因素分析Deviation analysis of proportional discharging of imported vegetable oils mixed in same ship tanks

Abstract

为最大程度节省运输成本和适应贸易发展需要，提高远洋油轮载重利用率，多家国内收货人经常拼船混舱装运同品种进口植物油，分别在国内不同港口或码头分割卸货,可能造成分卸比例分割偏差。通过对张家港口岸5批远洋油轮进口植物油混舱分卸比例分割产生的偏差分析发现，分割偏差受人为误差、舱容误差、密度误差、方法误差、外在环境、船舱卸货不净、油泵等因素影响较大，据此提出了改进措施与建议，为规范混舱装运进口植物油分割计量和卸货作业提供参考。Imported vegetable oils of the same variety are usually shipped in the same tanks and discharged separately at different ports or terminals in China according to the requirements of economical efficiencies from domestic consignees as well as the trade development, improving the deadweight utilization rate of ocean-going tankers, as a result, deviation proportional discharging might occur.The deviation was greatly affected by human error, tank capacity error, density error, method error, external environment, unclean discharging of the tanks, cargo oil pump, and other factors by analyzing deviation produced in the proportional discharging of five batches of imported vegetable oils mixed in the same tanks at Zhangjiagang port, and improved measures and recommendations were further figured out to provide reference for standardizing metering and discharging of imported vegetable oil mixed in same tanks.

Keywords

• 进口植物油；船舱；卸货；比例；偏差
• imported vegetable oil; ship tank; discharging; proportion; deviation