油库（站）零发油计量应注意的几个问题

为了解决油库（站）发油时出现损耗的问题，除正确安装计量仪器，满足流量计工作条件，定期维护、检定、校正外，还应正确运用计算公式，加强发油密度的跟踪计量。不同品种、不同批次油料的标准密度不同，在转罐、转批次发油时，要及时测定油品的密度。温度也是影响发油计量精度的一个重要因素，发油时也要及时准确地测定所发油品的温度。油品中的水分与杂质，不仅造成油品短少，还会影响流量计正常运行，计量失真。为此要定期清洗油

Points for Attention during Retail Metering of Product Oil for Tank Farm or Gas Station.

In order to reduce the loss of product oil during unloading in tank farm or gas station, the concerned equations must be applied correctly to enhance the tracking metering for the density of light oil unloaded besides correct installation of metering devices and meeting its operational needs, regular maintenance, calibration and proving. The density of product oil should be checked in time due to the differences of standard density among the product oils with different grades and different batches when unloading at tanks and batches changed. Temperature is also a factor influencing with the metering accuracy in unloading, so the temperature of the product oil unloaded should be correctly determined in time. The water content and impurity in the product oil not only produce wrong metering results, but also interfere with the normal operation of meters (metering distortion). It is neccessary to regularly clean tanks, dewater and deimpurity (including relay tanks). Filter must be installed ahead the flowmeter and contaminations drainage must be done regularly.