随着城市集中供热的发展,几年来采暖用热总是处在供不应求的局面,再加上调节手段的落后,所以常常出现水力工况紊乱、过热,过冷以及管网末端不热的现象。 上图是正常情况下的水压图,每个用户都有足够的资用压差以供系统内热水循环而保证采暖,可是在实际运行中,由于前面所提到的原因,我们却常常得到另一种紊乱的水压图。 With the development of urban central heating, the use of heat for heating has been in short supply in recent years, coupled with the backwardness of adjustment methods, so often the hydraulic conditions are disturbed, overheated, overcooled, and the end of the pipe network is not hot. . The figure above is the water pressure diagram under normal conditions. Each user has enough capital pressure to provide the system with hot water circulation to ensure the heating. However, in actual operation, due to the reasons mentioned above, we often Another disordered water pressure map was obtained.