Continuous casting secondary cooling dynamic control method based on online temperature measuring and heat transferring model

The invention provides a continuous casting secondary cooling dynamic control method based on an online temperature measuring and heat transferring model. The continuous casting secondary cooling dynamic control method includes constructing a new continuous casting secondary cooling dynamic model, planting the new continuous casting secondary cooling dynamic model into a computer system, embedding the new continuous casting secondary cooling dynamic model into a water distribution system of a continuous casting machine and enabling the new continuous casting secondary cooling dynamic model to be in communication connection with a PLC (programmable logic controller); mounting a non-contact type temperature measuring instrument CQU-2MB in a continuous casting straightening area and enabling the non-contact type temperature measuring instrument CQU-2MB to be in communication connection with the PLC and to form a feedback circuit with the new continuous casting secondary cooling dynamic model; acquiring various technological operation parameters by the new continuous casting secondary cooling dynamic model in an online manner during continuous casting; carrying out simulation computation of parameters in real time; measuring the temperature of the surface of a casting blank in the continuous casting straightening area in an online manner; and controlling and adjusting the quantity of water for continuous casting secondary cooling by comparison and computation for the temperature measured in real time in the online manner, the temperature which is predicted by a heat transferring model and is corrected in real time and the temperature of the surface of a target casting blank. By the continuous casting secondary cooling dynamic control method, accuracy and reliability of continuous casting secondary cooling dynamic control and stability of running of continuous casting secondary cooling are greatly improved, and the method is simple and feasible in implementation and obvious in effect.