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以API STD 2000-2014《常压和低压储罐的泄压》为指导原则,结合国内外工程经验,分析了润滑油储罐可能遇到的超压和负压工况,计算了不同工况下储罐安全保护装置所需的呼吸量,重点探讨了非正常工况下呼吸量的计算方法,确定氮气调节阀、呼吸阀及紧急泄压人孔的流通量。结果表明:非正常工况的润滑油储罐所需安全保护装置的最大呼气量和最大吸气量分别为876.3 m3/h、501.8 m3/h,大于正常操作下的液体最大进出量和大气热效应造成的呼吸量。因此,实际工作中需要对储罐运行的各种情况逐一分析,以确定安全保护装置的规格。研究结果对于润滑油储罐安全保护装置的设计,尤其是海外项目的设计具有一定的参考意义。
Taking API STD 2000-2014 “pressure relief of atmospheric pressure and low pressure storage tank” as guiding principle, combined with the experience of engineering at home and abroad, the possible overpressure and negative pressure conditions encountered in oil storage tank are analyzed, The next step is to calculate the amount of respiration required by the safety device under the tank. The calculation method of respiration rate under abnormal operating conditions is discussed emphatically. The flow of nitrogen valve, respiration valve and emergency relief manhole are determined. The results show that the maximum expiratory volume and maximum inspiratory capacity of safety protection devices for abnormal oil storage tanks are 876.3 m3 / h and 501.8 m3 / h, respectively, which are larger than the maximum volume of liquid under normal operation and the atmosphere Breathing caused by thermal effects. Therefore, in actual work, it is necessary to analyze each condition of the tank operation in order to determine the specifications of the safety protection device. The research results have certain reference meaning for the design of safety device of lubricating oil tank, especially for the design of overseas projects.