基于负荷比值的计量供热间连网质调节方程

The Quality Adjustment Formulae of Indirect-connected System With Heat Metering Based on Heat Load Ratio and Energy Requirement for Heating Prediction

为了满足计量供热系统热源超量调节和超前调节的要求,避免自主调节用户加热过程的热滞后,实现及时、足量、节能运行,笔者引入同类用户及其室内设计热负荷所占总热负荷的逐时负荷比值,建立了计量供热系统间连网一、二次侧主动质调节-被动量调节的运行调节方程。通过实例计算,证实了在逐时负荷比值确定后,虽然用户自主调节随机性很大,但仍然能够确定供热系统在调节状态下的供、回水温度及其流量,进而预测自主调节状态下的逐时供热量。

In order to meet the requirement of heat source＇s oversize adjustment and ahead schedule adjustment with heat metering systems, avoid the heating processes thermolag with the heat consumers＇ independent adjustments and realize timely, enough and energy-saving operation, this article introduces the homogeneous heat consumers and the gradual time load ratio of their indoor design heat load to the total design heat load, then sets up the adjustment equations of the primary piping network and secondary piping network of indirect-connected system with active quality adjustment and passive flow adjustment. It demonstrates that though the heat consumers~ independent adjustments are random greatly we can calculate the relative flow rates and temperatures of supply and return water, then foresee the gradual time energy requirement for heating in the situation of the heat consumers＇ independent adjustment.