Diesel Generator Set Radiator Function

Diesel generator set will produce a lot of heat during running, at this time, it will need a radiator to dissipate heat. Because if diesel generator set heat can not dissipate, it will cause diesel engine damaged. Therefore, in order to protect diesel generator set, we should maintain good heat dissipation.

As an important part of the diesel engine cooling system, the radiator is very important for the diesel generator, and its heat dissipation capacity largely determines the working temperature of the cooling system. Therefore, in order to ensure good heat dissipation effect, the following two aspects need to be done well: first, the generator room should have good ventilation effect; The second is to keep the radiator of diesel generator set working normally, among which the maintenance of radiator of diesel power generator is particularly important.

The core structure of the radiator is pipe belt type, and the core pipe (cooling water pipe) is flat to reduce air resistance and increase heat dissipation area. The heat dissipation belt is wavy, and many small windows arranged regularly are opened on it, which increases the air turbulence and improves the heat dissipation efficiency.

The radiator is divided into copper radiator, aluminium radiator and expansion tank. To solve the problems of cavitation of the water pump, low water supply chamber of the radiator and removal of air and water vapor in the cooling system, Cummins diesel engine adopts a high-level rear mounted forced degassing device - expansion water tank. The main functions of the expansion water tank are:

1.The expansion space of the coolant (i.e. as an expansion chamber) is provided in the cooling circuit to separate the coolant from the air, drive away the gas in the water path and eliminate the gas resistance of the coolant.

2.Contain the coolant overflowing from the radiator and return it to the cooling system to prevent the reduction of coolant in the cooling system. This is more important for the cooling system filled with antifreeze and rust inhibitor. Because in diesel engine cooling system, if there is no expansion tank, the steam will be discharged through the steam valve of the radiator after the water is heated and expanded. After long-time hot operation or high-speed and heavy load operation, post boiling will occur when the diesel engine stops running immediately or idles. Because at this time, the coolant stops or greatly slows down the circulation speed, so that the heat of the coolant cannot be dissipated, resulting in post boiling. In short, the expansion tank can avoid the loss of coolant.

In the whole body of the diesel generator set, the radiator plays a very important role in ensuring the normal operation of the unit. If it is not used properly, it will damage the diesel engine and generator set. If it is more serious, it may lead to the scrapping of the diesel engine.

Firstly, during diesel generator set running, the coolant in radiator is usually very hot and has pressure. Therefore, it is strictly prohibited to clean the radiator or remove the pipes when it is not cooled, and do not operate the radiator or open the fan protective cover when the fan is rotating.

Corrosion is the main cause of radiator failure. The pipe joint should be checked frequently to prevent leakage, and generator radiator should be filled regularly to drain the air in the system. When generator set does not work, the radiator shall be completely evacuated or filled. If conditions permit, distilled water or natural soft water is better, and an appropriate amount of antirust agent is added.

Radiator is an important parts for diesel generator set, not only we need to know the use of it, but also know how to maintain it, so that can let it have a longer service life. Above information is about diesel generator set radiator function, hope it is helpful to you.

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