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[求助] 两操一备的安全阀排放量及其泄放面积的确定

有一个设备上有安全阀两操一备,主要是为了防止安全阀泄放太多,因此一个安全阀的定压比另个稍微低些。那么这两个安全阀计算泄放面积的时候有什么原则吗?是总量的一半来计算吗?
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