(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;< /p>
(2) in the picture is the air-cooled radiator of the diesel engine. If I read it correctly, this diesel generator should be the forced air cooled type. This type 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 which absorbs the cooling water. the heat is cooled by the forced air cooling radiator. The cooled cooling water is then cooled by the cooling water to cool the machine, and so on. In normal operation, the temperatureThe temperature of the cooling water is stable between 75 and 85 degrees. If it exceeds 90 degrees, an alarm sounds. If it exceeds 95 degrees, it will stop, otherwise the diesel engine will be damaged.
Which are more powerful diesel engines, water cooled or air cooled?
The difference between water cooled motor generators and air cooled motor generators is mainly in the fact that the engines are different. , and their 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. dissipation medium for dissipating heat. Most air-cooled diesel engines are single-cylinder diesel engines. For example, the dissipation of the motorcycle engine is an air-cooled engine, which depends on the wind speed generated when walking.
Water-cooled diesel engines are more powerful than air-cooled diesel engines. Generally, gasoline generators and small diesel generators are used. Air-cooled diesel engines are mostly low-power engines. These are devices that convert the thermal energy released by the combustion of diesel into electrical or mechanical energy. They are mainly used in special industries such asgeological exploration, oil exploration and the military. Water-cooled diesel engines indirectly transfer heat to the atmosphere via the radiator via cooling water; Air-cooled diesel engines are directly cooled by air.
Advantages of air-cooled diesel engines: Air-cooled diesel engines have the advantages of simple structure, light weight and easy maintenance.
Advantages of water-cooled diesel engines: Water-cooled diesel engines have better cooling effects and are suitable for high-power diesel engines. When temperature or workload changes, it does. it is easy to adjust the cooling intensity so that the diesel engine is always within the specified range. Work within the temperature range (65℃~95℃). In addition, in winter, you can also use the method of pouring hot water por preheat, which makes starting easier.
Air Cooled Generator Set: Diesel engine is a generator for horizontal bar engine or parallel bar engine. One or more large fans are used to force exhaust air. to the generator body to dissipate heat.
Water-cooled generator set: Diesel engines are mainly four-cylinder, six-cylinder, twelve-cylinder and other large units. Water circulates between the interior and exterior of the interior. body, and the water inside the body is discharged through the radiator tank and fan to generate heat.
(Photos/Text/Photography: Liang Kexin) NIO EC6 Xpeng Motors P7 MARVEL R Lantu FREE Audi A4L Model Y @ 2019