Water cooling is a separate circuit. It does not directly contact the winding or iron core. Instead, water circulates through the pipe and the coil or iron core is cooled externally. The sand is so fine that it would be very difficult to pour and remove, and there is no guarantee that it can be completely removed. It will cause problems in work after extinguishing the fire. If you want to use nitrogen for cooling, it is no different from air cooling, because our atmospheric nitrogen accounts for 78.12% of the total air, which cannot achieve the cooling effect. The cost of using liquid nitrogen is too high.
A water-cooled engine produces electricity The difference between an air-cooled generator and an air-cooled generator
< p>The generator set is composed of two main parts: a main engine (diesel engine,gasoline engine, steam turbine, etc.) and a generator;The so-called water-cooled generator set refers to the use of water to cool the generator (not to mention the main engine , it must be cooled with water);
The water-cooled unit has internal dual-water cooling and internal single-water cooling; that is, the stator and rotor are both wires with internal dual water cooling, where only the stator is cooled. with water and the rotor is cooled by hydrogen, it is a single water internal cooling. (Large generators generally no longer use air cooling, but generally use hydrogen, because the mass of hydrogen is much smaller than that of air and its thermal conductivity is much better, which can greatly improve cooling efficiency; while water has large heat capacity and better cooling effect;e cooling, but it is difficult to make it larger)
The main difference between water-cooled motor-generators and air-cooled motor-generators is that the motors are different and the generators are basically the same. The difference between water cooled and air cooled engines is:
1. Water-cooled engines use water as a medium to dissipate heat. Single-cylinder diesel engines rely on self-flowing water. Tank to dissipate heat. Multi-cylinder diesel engines have a heat dissipation water tank and a cooling fan composed of a heater fan.
2. The air-cooled diesel engine dissipates heat by relying on airflow. It is molded into a tooth shape on the outside of the motor body to increase the air contact area and uses the airflow as heat. means of dissipationn to dissipate heat. Most air-cooled diesel engines are single-cylinder diesel engines. For example, the dissipation of a motorcycle's motor is an air-cooled motor, which depends on the wind speed generated when walking.