On the control of the metering system at both ends of long-distance pipelines
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This post was last edited by gxscjhs305 on 2010-12-3 at 12:03. Due to repeated leaks in long-distance pipelines, and given the complex outdoor conditions in which these pipelines are located with some of them buried underground, it is difficult to detect leaks during inspections. By the time a leak is identified, it has usually already caused significant damage. We want to implement a traffic comparison system first, and for now rely on monitoring changes in traffic at both ends to detect any leaks that have occurred. There are a total of 9 pipelines: pipelines for the sequential transportation of 93# gasoline, 97# gasoline, and jet fuel components, all with a DN150 diameter ； DN150 sequential transfer pipeline for diesel and heavy fuel oil ； DN150 liquefied gas pipeline ； DN250 crude oil pipeline ； DN100 pure benzene (sometimes cyclohexane) pipeline ； DN80** pipeline ； DN80 MTBE (now to be changed to naphtha) pipeline ； 2 DN80 butadiene pipelines. The length of the pipelines mentioned above is approximately 15 to 17 kilometers, and mass flow meters are installed at both ends. Could you please give some advice on how to determine the measurement system? Or other better leakage monitoring measures? What’s the approximate investment amount? First, thank you all{:1_90:} Email: xuchenhao1@163.com
Changes in temperature, density, and pressure need to be considered, especially for sequential transportation and liquefied gases
The previous pipeline leakage measurement software could be considered
Reply to 4# gxscjhs305: If online monitoring is used effectively, the accuracy should be satisfactory, but it will likely take 2 years to accumulate enough useful data
Could those upstairs provide some application examples? I’d like to see if I can go and take a look
Using mass flow meters at both ends is excellent, as there is no need to consider changes in conditions such as temperature and pressure. If there are leaks, a portable ultrasonic flow meter can be used to locate them.