采用自动连续取样器进行原油的在线自动取样,可以减少误差,提高计量精度.该取样器可以以一定的频率,每次定量地从管道中不断地取得少量样品.它可以进行2小时、4小时、8小时……24小时的连续取样,这样就增加了样品的代表性. 在线自动取样器主要由取样头、防爆电机、减速箱、齿轮泵、防爆电磁阀、加热器、调压阀和样品罐等组成(见原油在线自动取样器结构图).齿轮泵的转速为40转/分,每转排量为1.2毫升.自动取样器的频率及取样量(多长时间开一次,一次开多 The use of an automatic continuous sampler for on-line automatic sampling of crude oil reduces errors and improves measurement accuracy, allowing the sampler to continuously sample small quantities of sample from the pipe at a fixed frequency, quantitatively for 2 hours, 4 hours , 8 hours ... 24 hours of continuous sampling, thus increasing the representativeness of the sample.The on-line autosampler mainly consists of sampling head, explosion-proof motor, gear box, gear pump, explosion-proof solenoid valve, heater, pressure regulating valve and sample Cans and other components (see the crude oil on-line automatic sampler structure.) Gear pump speed of 40 rev / min, displacement of 1.2 ml per revolution Autosampler frequency and sampling volume (how often, once more