Do air cooling units and water cooling units refer to cooling steam turbines? For example, exhaust s

Introduction Do air cooling units and water cooling units refer to cooling steam turbines? For example, the exhaust from a steam turbine is cooled by water and the generator is cooled by air. We now say that a thermal energy production unit is cooled by air or by air.

Do air cooling units and water cooling units refer to cooling steam turbines? For example, exhaust s

We now say that a thermal power generation unit is air-cooled or water-cooled, which refers to the method of cooling the turbine exhaust steam. If the exhaust steam enters the condenser and is cooled with water, then it is a thermal power generation unit. water cooled unit. If the exhaust steam is discharged to The air cooling device uses air to cool, then it is an air cooling unit and has nothing to do with the generator cooling method himself. If the generator is air cooled, then the generator is said to be an air cooled generator and not an air cooled unit. Therefore, if the steam turbine is water cooled and the generator is air cooled, the unit is still a water cooled unit and the generator is an air cooled generator.

Why a cooledShould an air sensor be installed on the generator?

I did both. Both direct air cooling and indirect air cooling are based on the water circulation cooling method. Direct air cooling uses an air cooling island with a large fan and an air cooling island. For heat dissipation surface cooling, you can consult the Suzhou electric field. Indirect air cooling is done via an intermediate cooling tower (similar in shape to a cooling water tower). There are intercooling triangles around the bottom of the intercooling tower. is cooled by air convection inside and outside the intermediate cooling tower. You can take a look at the 660,000 units of the Shaanxi Qinling electric field.

The advantages anddisadvantages of air cooling, hydrogen cooling and water cooling for generators

The purpose of installing an air cooler is to reduce the temperature.

Principle

Due to the loss of copper and iron when the generator works, the temperature of the iron core and coil will gradually increase. In order to reduce the aging rate of the coil insulation and prolong its service life, the temperature of the coil should not exceed a certain value, for example 100°C. Therefore, measures should be taken to discharge the heat generated by the coil and the iron core in time to maintain the temperature of the coil insulation not exceeding the specified value. The most commonly used cooling methods include air cooling, hydrogen cooling, and water cooling. Although the effect of coolingby air is poor, air cooling equipment is simple and reliable, so it is widely used in medium and small generator sets.

The function of the chiller

The air cooler uses cooling water to cool the higher temperature air coming out of the generator, then sends it into the generator . In fact, when the generator operates, the heat generated is removed by the cooling water, and the air only acts as a fluid.

Due to the poor air cooling effect, large generators often use hydrogen cooling and water cooling with good cooling effect.

Air cooling: The system is simple and does not require a special hydrogen system or associated sealing oil systems, or a cooling water system for the generator. It is not necessary to take into account damage caused byr water or hydrogen leakage to the generator, but the cooling effect is worse than hydrogen cooling and water cooling.

Hydrogen cooling: The system is complex and requires specialized hydrogen production equipment and a corresponding sealing oil system. It is sensitive to nearby fire. Although the cooling effect is good, it will gradually be used due to its complexity. system and tedious maintenance.

Water cooling: The effect is good and the system is relatively simple. It requires a special cooling water supply system and is sensitive to generator water leakage and cooling water conductivity.

Personally speaking: Air cooling system is the simplest, followed by water cooling and finally hydrogen cooling.

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