Prevention of Low-flow Operation and Water Shocks of Heating Pipelines
The low-flow operation and water shock in the operation of steam heating pipelines have been troubling the majority of thermal users and heating system maintenance personnel.The occurrence of water erosion,low temperature and water shock in pipelines seriously threaten the safe operation of steam pipelines and the using quality of users.The uneven use of steam by thermal users will lead to the long-term existence of low-flow pipes in heating pipelines and produce condensate,and when condensate cannot be effectively eliminated,it will cause water shock to damage the pipeline.According to the operation characteristics of the heating pipeline,the concepts of lotus leaf effect and vacuous are put forward,and the running state of steam in the pipeline is analyzed,so as to explain how to improve the problem that condensate is difficult to discharge in the operation of low flow pipeline under dynamic balance,and find ways to prevent and solve the water shock.