What is causing condensation in the generator's hydrogen cooler?

Introduction What is causing condensation in the generator's hydrogen cooler? For synchronous generators with closed cycle ventilation and cooling, the main reasons for hydrogen cooler condensation are: gas added after generator overhaul and operation

What is causing condensation in the generator's hydrogen cooler?

For synchronous generators with closed cycle ventilation and cooling, the main reason for condensation in the hydrogen cooler is: the gas filled after overhaul of the generator and the gas filled during operation contain excess water vapor, and the cooling of the chiller The water temperature is low, and the dust particles attached to the surface of the chiller condense into water droplets, especially when the difference between the water temperature of chiller cooling and generator wind temperature is large.

The inlet air temperature is ambient temperature; the outlet air temperature should not exceed 40°C.

According to international technical requirements, the ambient operating temperature of the generator is set at 40°C. All designs and wattages are based on this ambient temperature. For the elderlygenerators, the ambient temperature is the generator inlet air temperature. Since the generator works with the diesel engine, the heat generated by the diesel engine will cause the entire space to exceed 40°C.

The ambient temperature of the generator during actual operation must not exceed 40°C. If the actual ambient temperature exceeds 40°C, the generator must operate at reduced power. For the ambient temperature, if it is lower than 40°C, the generator power may be higher than the rated power.

Detailed information:

Generator usage requirements:

< p>1. Check that the transmission parts of the internal combustion engine and generator should be reliably connected, the output line wires should be well insulated, and all instruments should be complete and efficient.

2. After startup it should worker on low speed for 3 to 5 minutes. The operation can only be started after the oil temperature and pressure are normal. There should be no abnormal noise when the generator increases in speed, the slip ring and commutator brushes should be in good contact, and there should be no jumps or sparks.

3. Before shutdown, you must first turn off the main switches of each power branch, gradually reduce the load, turn off the main power switch of the generator and return the excitation rheostat to the maximum resistance position to reduce the voltage to the lowest value. Turn off the excitation switch and neutral point grounding switch to stop the internal combustion engine.

Baidu Encyclopedia - Generator Reverse Power

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