一、编制电算程序的必要性和依据 在石油化工、电力等生产部门中,流量计的应用非常广泛。在流量计中节流装置又占大部分,以前节流装置设计计算需要用很多物料数据和大量图表,计算步骤繁锁而重复,是自控设计中耗时费工的工作。 First, the preparation of computer programs the necessity and basis In the petrochemical, power and other production sectors, the flowmeter is widely used. Throttle device in flowmeter account for most of the previous design and calculation of throttling devices need to use a lot of material data and a large number of charts, calculation steps are complicated and repeatable, is the time-consuming and labor-intensive work in the design of automatic control.