寒区热泵调峰供暖的参数界限与负荷分布

The parameter limit and heat load distributing of heat pump peak shaving heating in frosty district

调峰的参数界限是供暖系统装机容量选择的重要参数,关系到系统运行时的负荷分布与经济性.以末端散热设备为散热器,基于热稳定条件下散热器供回水温度及系统流量与室外温度的函数关系,分析推导了调峰运行时调峰热源承担的负荷表达式并优化求解了热泵热源出力比例最大时的运行流量,提出定义了流量分界温度界限问题,解析了调峰供暖的关键设计参数、设备容量及其出力负荷分布特性.分析得到:流量处于两极端状态,流量分界温度为分界点,调峰时调峰热源所承担的最大负荷比例最小为50%.图2,参10.

The peak shaving parameter limit is important to the choice of heating system capability,and is relate to heat load distributing and economic question.The percentage of shaving peak heat source and optimizes operating flux in maximal heat pump load were analyzed,the radiator was took as end heater apparatus in the heat steady condition and the work temperature was developed for shaving heating peak load,through analyzing the temperatures of radiator supply and discharge hot water and the function relationship between system flux and outside air temperature.The flux temperature limit was brought forward and defined.Key design parameter was analyzed,system capability and heat load distributing.Result show that flux is in the extreme,the flux temperature limit is dividing point and maximal peak shaving load percentage is fifty percents.2figs.,10refs.