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一、原油流量计检定周期内超差的原因分析1.原油流量计质量及选型把关不严(1)本身质量有的原油流量计本身质量较差,不能满足原油计量的质量要求;有的原油流量计进厂时,由于现场条件不具备,未检定就直接进入现场安装并投入使用;有的原油流量计开箱后没有铭牌或铭牌在运输过程中丢失,有的用光电脉冲计数器的铭牌代替原油流量计的铭牌,导致原油流量计的压力等级等技术参数不明确;有的原油流量计由于安装技术达不到要求,发生原油流量计安装位置发生倾斜、法兰密封垫突入管内等现象。
First, the crude oil flowmeter calibration cycle analysis of the reasons for the ultra-poor 1. The quality of the crude oil flowmeter and the selection of lax (1) the quality of some crude oil flowmeter itself poor quality, can not meet the quality requirements of crude oil measurement; Crude oil flow meter into the plant, due to the on-site conditions do not have, unverified directly into the site to install and put into use; some crude oil flow meter out of the box without nameplate or nameplate lost in the transport process, and some with optical pulse counter nameplate Instead of crude oil flow meter nameplate, resulting in crude oil flowmeter pressure level and other technical parameters are not clear; some crude oil flow meter due to the installation of technical requirements, resulting in tilting the installation position of the crude oil flow meter, flange gasket into the tube and other phenomena .