Measures to safely operate hot oil pipeline run at low - throughput condition 熱油管道低輸量的安全運行
The two pipelines ran parallel to each other , 7 . 5 ft . apart and the maximum daily transfer was between 3 , 500 , 000 and 4 , 500 , 000 gallons of water 第二條輸水管與第一條平衡,相距7尺6寸,每天最多可運送食水350萬至450萬加侖。
On the base of researching the principle of risk acceptability , some primary work has been done to the acceptability rule of city gas pipeline , on the other hand , some methods to alleviate the risk and some suggestions to make pipeline run more safely are given in the paper 在研究了風險可接受性原則的基礎上,對城市天然氣管網風險的可接受性準則進行了初步的探索,同時給出了城市天然氣管網風險緩解的措施和使管網安全運行的建議。
At present , the distance of the pipelines running in the industry of oil refining , petrol - chemistry and electricity in china is around 500 , 000 kilometres . the majority of them last one or two decades , gradually resulting in the summit of accidents with various degrees of erosion and cracks 我國石油、化工等行業的在役油氣長輸管道總長約50萬公里,其中大部分管道已使用10 ? 20年以上,出現不同程度的腐蝕、裂紋等缺陷,逐漸進入事故高發期。
The system whose distance precision is within ? 00m is adapt to crude oil gathering and transferring pipelines and long distance pipelines without missing alarm and has low rate of wrong alarm . it detects the real time situation of pipeline " s running . when the system meets the si tuat ion in which the amount of leak is beyond the 1 percent of total pipeline run , it will send out alarm in a instant , give the point of leak and evaluate the extent of leak 該系統適用于原油集輸管線及原油長輸管線,無漏報,誤報率低,定位精度達到了200米,實時監測原油管道的運行狀態,遇有大于管道輸送量的1泄漏時,能夠在短時間內聲光報警,給出泄漏位置及估計泄漏程度。