According to the cleaning method for the air cooler of the marine
diesel engine, the air cooler and a cleaning fluid inlet are arranged on a main engine of the marine
diesel engine, the air cooler is provided with a cleaning fluid air cooler inlet and a cleaning fluid
discharge port, and the cleaning fluid air cooler inlet is communicated with the cleaning fluid inlet through a pipeline; the air cooler cleaning
system is characterized in that
chemical cleaning liquid is directly input into a cleaning liquid inlet of a main
machine from the outside through a cleaning
pipe system, then enters an air cooler through a cleaning
liquid air cooler inlet to clean the air cooler, and then flows back to the cleaning
pipe system through a cleaning liquid
discharge port, so that the cleaning effect of the air cooler and the
utilization rate of the cleaning liquid are improved; the cleaning
pipe system comprises a cleaning liquid circulating cabinet, a
circulating pump, a liquid supply hose, a liquid return hose and a three-way valve, the cleaning liquid circulating cabinet is connected with the
circulating pump, an inlet is connected with the cleaning liquid
discharge port through the liquid return hose and the three-way valve, and an outlet of the
circulating pump is connected with the cleaning liquid inlet of the host through the liquid supply hose. The air cooler cleaning device improves the
utilization rate of
chemical cleaning liquid and the cleaning effect of the air cooler, and has the advantages of being simple in structure and flexible to use.