垂直管屏式直流锅炉热态水动力调整方法

Hot-state Hydrodynamic Adjustment Method for a Vertical Water-wall Once-through Boiler

针对现场实际情况 ,在研究大量文献的基础上 ,提出了一种新的垂直管屏式直流锅炉水动力调整方法———热态调整法。该方法克服了冷态水动力调整的弊病 ,还根据热态调整法的数学模型 ,可直接求解各节流阀的开度 ,实现了水动力调整的一次到位。针对SG - 10 2 5 - 2UP型直流锅炉 ,编制了水动力调整程序 ,并进行了计算 ,验证了调整程序的合理性。

In the light of actual on-site conditions and on the basis of the assimilation of a huge amount of relevant technical literature the authors have come up with a new hot-state hydrodynamic adjustment method for vertical water-wall once-through boilers. The recommended method can eliminate the defects specific to a cold-state hydrodynamic adjustment method. Furthermore, with the use of a mathematical model of the hot adjustment method it is possible to directly solve for the opening degree of each throttle valve, thus realizing the hydrodynamic adjustment at one stroke. A hydrodynamic adjustment program has been prepared for SG-1025-2UP type once-through boilers with relevant calculations being performed, thus verifying the rationality of the adjustment program.