What are the common cooling methods for turbogenerators?

Introduction What are the common cooling methods for turbogenerators? Commonly used cooling methods for turbogenerators include: (1) Air cooling. It is divided into open air cooling and closed circulation air cooling. so-called opening

What are the common cooling methods for turbogenerators?

Common cooling methods for turbogenerators include:

(1) Air cooling. It is divided into open air cooling and closed circulation air cooling. So-called open-air cooling consists of the fact that in ordinary small generators the generator fan draws cold air into the engine from the factory building, cools each part, and then exhausts it out of the machine . Closed cycle air cooling is used in large and medium sized generators. After the cooling air exits the generator, it is conducted under the machine pit. After being cooled by a set of air coolers, it is driven into the engine by one. fan. This air always circulates inside to keep the machine clean.

(2) Water cooling. Generally, it is a double internal water cooling, that is to say that the conductorss of the stator winding and the rotor excitation winding are hollow, the cooling water passes inside the conductors and the stator bore is always cooled by air. Although the cooling efficiency is high, the interior of the driver is prone to scaling and clogging.

(3) Hydrogen cooling. It is divided into two cooling methods: external hydrogen cooling and hydrogen water cooling. External hydrogen cooling is the same as air cooling, except the cooling medium changes from air to hydrogen, but the hydrogen cooler is inside the machine. The difference between water-hydrogen cooling and hydrogen cooling is that the cooling water passes inside the stator winding conductor, and the rest is the same as external hydrogen cooling.

Coolingnt by water or by air is better with 10 kilowatt silent diesel generator?

The stator core adopts radial ventilation and the rotor adopts air gap diagonal flow ventilation and cooling. system.

Advantages of using hydrogen as a cooling medium:

1) Hydrogen has low density and can reduce wind energy consumption.

2) Hydrogen has high heat transfer ratio and coefficient, which can guarantee the effective material output power per unit volume.

What are the advantages and disadvantages of water and air cooled diesel generator sets

Water cooling: the heat generated inside the body is removed by the circulation of water inside and out. the body.

Air cooling: Use one or more large fans to force exhaust air toward the body to dissipate heattheir.

Principle: For motors with the same technical parameters, water cooling is small in size, light in weight, has high water density, water heat exchange performance is better than those of wind, and the cooling effect of water of the same volume is better than that of wind.

Those with higher power are usually water cooled, while those with lower power can be air cooled. Air-cooled generators have better environmental adaptability and can adapt to all application environments, while water-cooled engines have more environmental requirements, complex structures and high prices.

The advantages and disadvantages of water-cooled and air-cooled diesel generator sets are mainly reflected in the host.

Water-cooled diesel engines have an open cycle and a closed cycle. They havegood cooling effect, are low noise and are widely used. However, the structure is complex, the manufacturing cost is high, it is relatively bulky, it is easy to corrode, it produces scale, blockages, leaks, it loses a lot of heat, it consumes more oil and it is more difficult to maintain.

The air-cooled diesel engine has simple structure, low manufacturing cost, small size, light weight, low heat loss, relatively fuel efficient, no water leakage, from frost, scale and other defects, short hot-running time and environmental adaptability Good performance and easy maintenance. The disadvantages are loud noise, uneven cooling, high thermal load and high fan power consumption.

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