热偏差及影响因素 锅炉的许多受热面是由一系列并行连接的管子组成.在这些并联管于中,工质的焓增量有很大差别,管子出口的工质温度也有很大差异.其中某一单管的焓增量与整个管组的平均焓增量之比,称该管的热偏差系数,简称热偏差.热偏差最大的管子,其工作条件最差,称为偏差管.在锅炉水动力及强度计算中应考虑偏差管的管壁温度. Thermal deviations and influencing factors Many heated surfaces of a boiler consist of a series of pipes connected in parallel, in which the enthalpy increments of the working fluid are quite different and the temperature of the working fluid at the outlet of the tube varies greatly. The enthalpy increment of a single tube and the average enthalpy increment of the entire tube group, said the tube thermal deviation coefficient, referred to as thermal deviation. Thermal deviation of the largest pipe, the worst working conditions, known as the deviation tube. Boiler hydrodynamic and strength calculation should be deviated pipe wall temperature.