回水采暖是否对外网水力工况有不良影响、是否经济、是不是不够正规等问题,在搞供热的同行中争论很大。许多人认为回水采暖不经济,虽然节约了低位能,却浪费了高位能一电,由于回水采暖的循环泵的作用,提高了网路回水干管的压头,会影响整个网路的水力工况。目前,对其经济性的探讨不 Whether the backwater heating has adverse effects on the hydraulic conditions of the external network, whether it is economical, whether it is not formal enough, and so on, there is a great deal of controversy among the heating counterparts. Many people think that backwater heating is not economical. Although low-level energy is saved, high-level energy is wasted. Because of the effect of the circulating pump for backwater heating, the head of the network’s water return mains is increased, affecting the entire network. Hydraulic conditions. At present, the discussion of its economy is not