Diesel engine side exhaust seawater cooling control method and system

The invention discloses a diesel engine side exhaust seawater cooling control method and a system. The diesel engine side exhaust seawater cooling system comprises a diesel engine controller, a side exhaust control box, a remote monitoring device and a side exhaust system. An automatic control mode is adopted, operation is simple and convenient, the automation degree is high, a diesel engine formsa starting interlocking together with a release valve and a side discharging valve in the side exhaust system, a side exhaust seawater cooling pump forms local closed-loop interlocking together withthe release valve and the side exhaust discharging valve, and thus the diesel engine and the side exhaust seawater cooling pump can be accurately controlled; and the opening degree of a seawater flowcontrol valve can be automatically adjusted, a side exhaust pipeline of the diesel engine under the different loads is subjected to seawater cooling, the pipeline surface temperature of the side exhaust system is kept to be 60