(1) in the picture is an expansion joint, and the muffler is connected to the expansion joint. This part is used to discharge the high-temperature and high-pressure exhaust gas generated by the diesel engine into the atmosphere;
(2) in the picture is the air-cooled radiator of the diesel engine. If I read it correctly, this diesel generator set should be a forced air cooling type. This kind of diesel engine has a closed cooling water circulation system. When the diesel engine is running, the heat generated by the cylinder liner and other components as well as the lubricating oil system is cooled by the cooling water. The cooling water that absorbs the heat is cooled by the forced air cooling radiator. The cooled cooling water is then cooled by the cooling water. To cool down the machine, and so on. Under normal operation, the temperature of the cooling water is stable between 75 and 85 degrees. If it exceeds 90 degrees, an alarm will sound. If it exceeds 95 degrees, it will shut down, otherwise the diesel engine will be damaged.