Differences Between Open Type and Closed Type Diesel Generator Sets

We are very familiar with diesel generator sets. In various production and living occasions, we use diesel generator sets to generate electricity, which provides great convenience for users. At present, diesel generator sets can be classified in the market, which can be roughly divided into two categories: closed cooling cycle diesel generator sets and open cooling cycle diesel generator sets. They have different characteristics, so there are still some differences in the use process.

The closed cooling cycle diesel generator set is mainly composed of diesel engine, AC synchronous generator, control panel and supporting devices composed of public chassis, radiator, cooling fan, etc.

The structure of the open cooling cycle diesel generator set is basically the same as that of the above closed units. The main difference is that the open unit does not have a radiator and cooling fan device, so the unit itself cannot independently complete the cooling cycle process. Users must set a cooling water radiator when using it to meet the cooling water required by the diesel engine. The open cooling cycle is generally used for high-power diesel generator sets.

The closed cooling cycle diesel generator set is fixed on the same common chassis by the diesel generator set and the generator. The power output end of the diesel generator set is directly connected with the rotor pump of the diesel generator set through the elastic sleeve pin coupling, and the diesel generator set drives the generator to work. The radiator and cooling fan are installed at the free end of the diesel generator set. The cooling fan is connected with the free end of the crankshaft through the fan drive device, and the diesel generator set drives the fan to operate, so as to implement forced cooling with cooling water. The radiator is connected with the internal cooling system of the diesel generator set through the water inlet and outlet pipes to form an independent closed circulating cooling system to provide cooling water for the diesel generator set during operation. Users do not need to set up additional cooling water cooling devices.

The use and maintenance of diesel generator sets with different classification characteristics are different. Therefore, it is necessary to understand the characteristics of diesel generator sets with different classification and carry out corresponding maintenance according to the characteristics, which can greatly improve the use stability of diesel generator sets.

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