Kategoriler
CSTG II and CSTG III extraction condensing turbines feature a modular design. They consist of STG I or STG II high-pressure module and CSTG condensing module, which are connected to one power generator or other driven machine. In so called tandem arrangement both modules are installed on opposite sides of the power generator, and are connected to the rotor of the generator on its both ends. In so called parallel arrangement both modules are installed side by side with parallel rotors, and are connected to the rotor of the generator on its one side. The steam exiting the high-pressure module is led into the condensing module by a transfer piping in both arrangements. In their power category, the CSTG II and CSTG III turbo-sets have a higher efficiency than conventional multi-stage turbines. This advantage is given by mutually independent selection of optimum speed of the modules and by use of an optimal turbine stage of the high-pressure module. They combine the competitive advantages of high-pressure overhung STG turbines and low-pressure CSTG axial condensing turbines. The advantage of the modular design in the tandem arrangement is the possibility of operation in both fully condensing (without technological extraction of steam) and fully back-pressure mode (without steam condensation in a condenser). Such a range of operating conditions is enabled by independent regulation of the back-pressure and condensing modules, with possibility of disconnection and reconnection of the low-pressure condensing module of the turbo-set by means of an automatic coupling without shutdown of the whole machine. This is why the turbo-sets are often installed in plant with a very variable steam extraction. With big extraction it is possible to disconnect the condensing module permanently automatically, which brings the user the advantage in a decrease of the amount of steam generated in the boiler by the amount, which is necessary for cooling of the connected condensing module at idling. Such regulation brings fuel and cost savings. The CSTG II and CSTG III turbo-sets can be used for driving generators as well as compressors and pumps. They are especially suitable for smaller units burning bio fuel (chips, straw, briquettes, etc.).
Financing
Last but not least, PBS ENERGO offers its customers various models of financing. In cooperation with financial institutions we are ready to offer our customers an optimal financing model for the construction of the plant itself as well as for the medium-term or long-term crediting.
Selected references
Iromez Pelhřimov Yaroslavl Návsí