For on-line calibration system of flowmeter, the working fluidflow is from the petroleum pipe line itself.
体积管工作时的液流,对于流量计在线检定系统,是来自输油管线本身。
2
Setup Schematic, Figure 101, with fluidflow directed into the fuse in reverse direction, and return line connected.
按照图101设置测试装置,使油液反向流入保险并断开回油管。
3
Additional flow rate (AFR) method can overcome this problem beautifully by inject a kind of light and thin fluid into choke line to drop its pressure loss.