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["Problemas de膨胀问题液化烃管道背压问题"

2020-07-04View Original

Thread Content

"SiSi se安装一台安全阀在液相液化烃上上防止管道形成封闭段后外界温度的影响; 安全阀的出口接到液化烃球罐的气相上去 问题问题是 如果整定压力设置到3MPa, �这根管道的设计压力是3.1MPa; 但是球罐的气相一般在 o.8~o.11范围内变化; 这样的话 安全阀的背压就 o.8~o. " " �那这台安全阀应该怎么选 D整定压力要设置到3MPa o.8~o. " "背压对整定压力有影响吗?
Reply #22020-07-05
" 选择带波纹管的安全阀 降低被压的影响。
Reply #32020-07-08
"这个脑洞开得有点儿大了 安全阀整定压力和背压能有什么关系 尪就好比说 一把菜刀磨地快不快和菜板板材质能有什么必然联系呢 话又说回来 和和和和和安全阀选择还是还是背压高 压力差小会影响安全阀起跳后的泄放速度 要保证泄放量 所要考虑选出口更大口径的安全阀 或设置两台或多台安全阀"
Reply #42020-07-09
D
Reply #52020-07-09
"为什么不把安全阀出口接到火炬线上呢"
Reply #62020-07-10
" "赞同 选型时考虑背压平衡式、法控制"
Reply #72020-07-10
D
Reply #82020-07-11
"接到火炬线浪费啊 � "这样不就排到罐罐里面去了吗 人家的罐顶估计还有BOG回收呢 设设计没有问题 �背压和D和安全阀整定压力和背压没有关系 � 叧只要背压提的准确(恒定背压或可变背压) �安全阀厂家就能选出合理的安全阀 "D
Reply #92021-02-05
" "背压会影响泄放量安全阀会变大 与整定压力无关" "
Reply #102021-02-07
"如果如果从安全阀考虑 整定压力和背压关系不大 不D不过你你描述管线设计压力是3. "D按你说的设置到 "MPa 加球罐压力 � "你你这个安全阀已经没什么配备的必要了 �都超管线设计压力压力了 "D
Reply #112021-02-07
D

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