350 MW机组热网首站供热量校核

District Heating(2021)

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Abstract
针对于热网首站供热量测量过程中存在的偏差较大问题,提出根据热力学第一定律以采暖蒸汽在热网加热器中的放热量校核热网首站供热量的方法.对350 MW机组热网首站进行了供热量校核试验,结果表明:保持单台热网加热器运行时,在热网循环水流量7500 t/h和6000 t/h工况下,热网首站供热量和采暖抽汽放热量相对偏差分别为-0.39%和0.74%,建议应用此方法校核热网首站供热量并在热网加热器疏水管道上加装高精度流量测量元件,保证测量的准确性.
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