Wet Cooling Towers are those buildings where the water that was heated by industrial or power generation processes is cooled, again. The heat is given off to the environment. Wet cooling towers are an integral part of the thermodynamic circle.
The water to be cooled is sprayed and distributed over the splash fills. As a result the water temperature drops when the evaporation heat is withdrawn and the air gets humified.
The required air stream for the cooling is produced by ventilators which are mounted on an output shaft of the gear unit. To enable the Flender gear units for power generation and gear units for cooling towers to absorb the enormous ventilation forces the gear units are equipped with an additional axial bearing. Therefore, only application-adapted 2-staged bevel helical gear units are used to fulfill the special requirements of this application.
The motor is installed outside the cooling tower. He is mechanically connected to the gear unit that is placed right in the middle of the diffuser of the cooling tower via long Composite Couplings. These special couplings are also found in the FLENDER product range.
Your benefits at a glance
Low noise emission due to torsionally rigid housings
Variable dimensions of the output bearings for the different ventilator types (according to the ventilating rail)
Highest operational reliability due to one-part housings, reinforced bearings, centrifugal discs on the ventilator shaft
Additional cooling realized by fan cooler on the input shaft
Long service life as a result of optimized gear unit selection and use of high-grade materials
Complete drive system from a single source
Applications
Power generating industries, like:
Biomass power plant
Gas power plant
Nuclear power plant
Coal power plant
Waste incineration plant
Oil power plant
A water turbine is a turbomachine that converts the potential flow energy contained in water into mechanical energy; this mechanical energy is subsequently converted into electrical energy in a generator.
Flender gear units for power generation and water turbines gear up the low turbine speed into a very high generator speed. They also convert the torque that is output by the turbine and transmit it to the generator. The extreme transmission ratio and the high speed result in particularly high loads on the rolling bearings. Flender gear units for water turbines are therefore equipped with bearings of the highest quality in order to reduce friction losses to a minimum.
The mounting position is usually vertical. Flender gear units for power generation feature the proven “dry well” design, which prevents oil leakage and protects the environment.
Your benefits at a glance
High operational reliability
Oil-free shaft end
Available with oil retaining tube
Strong input shafts and bearings for absorbing high, external axial loads
Applications
Hydraulic power generating plants
