Our company has made a major repair of 2.4 MW turbines in Refinery Novi Sad aftermath of bombings in 1999. year. In addition, we performed also the regular maintenance of the same turbine after every four years. In addition to the 2.4 MW turbines, oil refineries and has a smaller turbines that we have maintained for many years. Under the overhaul we mean replacing the turbine housing, rotor balancing, replacement blades, and similar regulations.
According to the method of flow turbines are divided into axial and radial, the direction of flow of steam to the axis of rotation of the rotor. In radial flow steam turbine perpendicular to the axis of rotation. Everything stated above applies to this type of turbine except that here the centrifugal force plays a role in the process simplified. Only smaller machines are installed as radial, while the large, energy, exclusively axial type. According to the number of degrees turbomachines are divided into single-stage and multistage. High-power turbines are about 30 degrees. At higher power, turbines are being built with more armor, so the big machines have high-pressure turbine, medium pressure and low pressure with their own housings and holes for common shaft.
The largest turbines are built with two shafts and a separate generator. Steam turbines, except as may be condensation, where the money goes to the condenser, can be *anti-pressed*. In *anti-pressed* turbine steam leaving the turbine is much higher temperature than the surroundings, and is used for industrial processes and domestic water heating.