Equipment easy to damage. From the generator's operating instructions, it can be seen that if the generator replenishes hydrogen too quickly, it will easily damage the equipment. Generators refer to mechanical equipment that converts other forms of energy into electrical energy. It is driven by water turbine, steam turbine, diesel engine or other electrical machines and converts energy generated by water flow, air flow, fuel combustion or nuclear fission . into mechanical energy and transmits it to the machine's generator, which is then converted into electrical energy.
Hydrogen is one of the gases with the lowest specific gravity, so ventilation loss is low. The fan on the generator rotor in the turbine generator set has high mechanical efficiency. and it can quickly remove heat from generator, high cooling efficiency. Hydrogene does not support combustion. The oxygen content of the generator is less than 2%, so the risk of fire is very low if the generator winding fails.
The generator of the turbogenerator group must therefore be cooled by hydrogen.
A generator whose stator and/or rotor are cooled by hydrogen. There are mainly all-hydrogen cooling and stator windings with internal water cooling, the rotor winding and stator core are hydrogen cooled (water hydrogen), and the windings stator and rotor windings with internal water cooling, the stator core is hydrogen cooled (water hydrogen). ).
The windings and iron core of the generator generate heat during operation. To prevent burns from excessive temperature, coolants include air, water, hydrogen, oile, freon, etc. , among which hydrogen is the most widely used because hydrogen has the advantages of good thermal conductivity (thermal conductivity is 8.4 times that of air), low density and diffusion fast. It has a good cooling effect and is easy to carry. and can be recycled.