Features of axial flow generator cooling fan: high flow rate, medium wind pressure.
The blades of the cooling fan of the axial flow generator push the air to flow in the same direction as the shaft. The impeller of the axial flow fan is somewhat similar to a propeller. When it is working, most of the air flow is parallel to the shaft. In other words, along the axis.
When the inlet airflow is free air with 0 static pressure, the power consumption of the axial flow fan is the lowest. When running, the power consumption will increase as the airflow back pressure increases. Axial fans are usually installed on the cabinets of electrical equipment, and are sometimes integrated on motors. Because axial fans are compact in structure, they can save a lot of space and are easy to install, so they are widely used.
(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;
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(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.