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建立了发电机层1:20通风模型,选用双排和3排共57个圆形送风口、6种送风口组合方案,28,56,112m3/h3种风量,4种热源强度,共27种试验工况,试验研究了大空间上送下排机械送排风气流组织分布规律。对主厂房发电机层温度、速度采用量纲一化方法处理,基于不均匀系数和能量利用系数综合评价,推荐采用双排对称圆形风口送风方案。
A 1:20 ventilation model of the generator was established. A total of 57 circular air outlets, double air outlet and 3 rows of air outlets, 6 air outlet combinations, 28,56,112m3 / h air volume and 4 heat sources were selected. A total of 27 tests Working conditions, the experimental study of the large space to send the next row of machines to send exhaust air distribution rules. Based on the comprehensive evaluation of non-uniform coefficient and energy utilization coefficient, the temperature and velocity of generator layer in the main plant are treated by the method of dimension normalization. It is recommended to use the double-row symmetrical circular tuyere air supply scheme.