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通过获取冷却通水的流量、混凝土内部温度计算混凝土冷却通水降温效率,根据设计温控曲线确定的降温时段与降温幅度要求,以当前流量与混凝土温度为计算基准计算下一步流量控制值。同时引入实际降温流量系数α的动态调整并配合滞后系数ξ的辅助修正,解决除通水以外的其它温控参数变化引起的计算偏差,实现了控制混凝土内部温度均匀平稳下降,并在预期时间内达到控制目标温度的目的。该算法实现了通水流量的自动计算,排除人工控制的随意性,进一步提高了大体积混凝土的施工质量。
Through obtaining the flow rate of cooling water flow and concrete internal temperature, the cooling efficiency of concrete cooling water flow is calculated. According to the requirements of cooling time and cooling rate determined by design temperature control curve, the next flow control value is calculated based on current flow rate and concrete temperature. At the same time, the dynamic adjustment of the actual cooling flow coefficient α and the auxiliary correction of the hysteresis coefficient ξ are introduced to solve the calculation deviation caused by the change of other temperature control parameters except for the water passing through, so that the temperature inside the concrete can be controlled to decline evenly and within the expected time Achieve the purpose of controlling the target temperature. The algorithm realizes the automatic calculation of water flow, eliminates the randomness of manual control and further improves the construction quality of mass concrete.