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通过对集热器有效集热量、建筑热负荷、蓄热系统蓄热量、蓄热水箱损失以及蓄热水箱温度的理论分析,建立了太阳能采暖供水管流量数学模型,且分别在不同太阳辐射强度与不同建筑热负荷波动规律下进行模拟分析,得出蓄热水箱温度变化规律以及各种情况下采暖供水管流量变化规律。结果表明:蓄热水箱温度受太阳辐射强度波动规律影响较大,受建筑热负荷波动规律影响较小,其中蓄热水箱温度基本在30～70℃之间;太阳辐射强度相同,建筑热负荷越大所需采暖管流量也越大,流量最大、最小值分别可达到0.810、0.008kg/s;随着太阳辐射强度波动规律的增大,采暖管流量波动规律亦相应增大。
Through the theoretical analysis of the effective heat collector, the building thermal load, the heat storage system, the loss of the heat storage water tank and the temperature of the heat storage water tank, the mathematic model of the solar heating water supply pipe flow was established, Strength and heat load fluctuations of different buildings under the law of simulation analysis, the temperature change of the storage tank and the law of heating supply pipe flow under various conditions are obtained. The results show that the temperature of storage tank is greatly influenced by the fluctuation of solar radiation intensity and is less affected by the fluctuation law of building thermal load. The temperature of storage tank is between 30 and 70 ℃. The solar radiation intensity is the same, The larger the load, the larger the heating pipe flow, the maximum flow, the minimum value can reach 0.810,0.008kg / s respectively. With the increase of solar radiation intensity fluctuation, the fluctuation law of heating pipe flow also increases correspondingly.