本文提出了管网流动的最小能量损失原理,并证明了该原理和传统的以伯诺里方程为基础的计算原则的等价性。依据这一新的原理,本文还提出了一种确定管网流量分配的新计算方法,并给出了计算实例。 This paper proposes the principle of minimum energy loss in pipe network flow, and proves the equivalence between this principle and the traditional calculation principle based on the Bernoulli equation. Based on this new principle, this paper also proposes a new calculation method to determine the distribution of pipe network traffic, and gives a calculation example.