技术中心

【英文篇名】 Test and analysis on variable flow rate in a heat metering quarter 【作者中文名】 徐宝萍; 付林; 狄洪发; 【作者英文名】 Xu Baoping~★Fu Lin Di Hongfa Tsinghua University; Beijing; China; 【作者单位】 清华大学; 【文献出处】 暖通空调, Heating Ventilating 变流量; 压差控制; 水泵功耗; 【英文关键词】 household metering; variable flow rate; pressure differential control; pump consumption; 【摘要】 从不同的空间尺度和时间尺度对北方某分户计量按热量收费的住宅小区进行了变流量测试与分析,测试结果发现,用户流量变化差别很大,日最大相对流量变化范围为0～100%;从用户、楼到换热站的相对流量变化幅度逐渐减小;换热站的流量变化存在高低不同频率的波动,1h内的相对流量变化幅度小于2.5%,1d内小于5%,一个控制周期内小于10%,整个供暖季的流量变化明显受压差控制的影响,呈阶跃性变化;水泵功耗与压差设定值有关。 【英文摘要】 Performs the test and analysis in a residential quarter with household heat metering system on the basis of different space and time scales.The results show that the flow rate of users varies considerably with a maximal changing range of relative flow rate from 0 to 100 percent;that the changing range decreases along with the enlargement of space scale from end-users to buildings and stations;that the fluctuation of relative flow rate of stations is less than 2.5 percent in an hour,5 percent in a day and 10...