External circulating water cooling system and method for tunnel boring machine

The invention provides an external circulating water cooling system and method for a tunnel boring machine, and belongs to the technical field of intelligent control. The system comprises a temperature data acquisition module, a cooling water flow rate data acquisition module, a data time sequence arrangement module, a cooling water flow rate time sequence characteristic analysis module, a temperature local time sequence characteristic analysis module, a posterior cooling water flow rate time sequence characteristic expression module and a cooling water flow rate control module. According to the invention, the real-time temperature value and the cooling water flow velocity value of the to-be-cooled part of the tunnel boring machine are respectively collected through the temperature sensor and the flow velocity meter, and the data processing algorithm is introduced at the rear end to carry out the time sequence collaborative analysis of the real-time temperature value and the cooling water flow velocity value.