作者把通风网路的控制位置扩展到自然分风网。根据风流的流动过程和用途,将网路分成进风网、用风网和排风网。文章提出了可控子图的概念,指出凡能与用风网的风路构成回路的变流风路皆可控。控制设施的数量m=n-j-l+k。文章还给出了求解全部控制方案及其参数的方法,并探讨了控制方案的经济效益。 The author extends the control of the ventilation network to a natural distribution network. According to the romantic flow process and purpose, the network is divided into the wind network, wind network and exhaust network. The article puts forward the concept of controllable subgraph, and points out that all of them can be controlled with the changeable air flow which forms the return air circuit with the wind net. The number of control facilities m = n-j-l + k. The article also gives a solution to all the control schemes and their parameters, and discusses the economic benefits of the control scheme.