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空分装置能量平衡是指整个制冷、分离过程的能量平衡。它是由压缩、膨胀、热交换、精馏等一系列过程组成的。在一般的热工设备中,能量平衡的概念仅仅是数量之间的平衡,而在空分装置中很难,也不应该仅搞数量上的平衡。因为在能量平衡计算装置的效率时,各种气体(氧、氮、氖、氦、氪、氙)的当量热值没有一个比较科学严密的数值。现在国内有关资料中关于氧、氮的当量热值出入颇大,而且很难说有一个较为严格的热平衡的概念。例如:《一机企业能量平衡计算方法》中将氧气的当量热值d_(?)=150(千卡/米~3)。在航空工业部的《企业能量平衡
Air separation plant energy balance refers to the entire cooling, the energy balance of the separation process. It is composed of compression, expansion, heat exchange, distillation and a series of processes. In the general thermal equipment, the concept of energy balance is only the balance between quantities, but in the air separation plant is difficult, it should not only engage in quantitative balance. Since the equivalent calorific values of various gases (oxygen, nitrogen, neon, helium, krypton, xenon) are not scientifically rigorously calculated as the energy balance calculates the efficiency of the plant. Now the domestic relevant data on oxygen, nitrogen calorific value of considerable discrepancies, and it is hard to say that there is a more stringent concept of heat balance. For example: “a machine business energy balance calculation method” will oxygen equivalent calorific value d _ (?) = 150 (kcal / m ~ 3). In the Aviation Industry Department’s "Enterprise Energy Balance