| 摘要 |
The system comprises a rotating heat-transmission installation (3), in which the waste gas (AG) leaving the boiler (1) fired with brown coal is cooled, and the heat extracted in this connection from the waste gas (AG) serves for regulating the temperature of the combustion air (VL) introduced into the boiler (1). Provided parallel to the heat-transmission installation (3) is a heat displacement unit (5), with the aid of which primary air (PL) is preheated with the heat of the waste gas (AG1) leaving the heat-transmission installation (3). The heat-transmission installation (3) is bridged by a bypass (13) with a heat exchanger (14) which can be acted upon by waste gas (AG). Boiler feed water (KSW) flows in the heat exchanger (14). This water is heated with the waste gas (AG). It is possible to connect at least indirectly to the heat-displacement unit (5) a further heat exchanger (18), with the aid of which the waste gas (AG4) leaving a smoke-gas desulphurisation installation (21) can be brought to a sufficiently high temperature for charging a fireplace (22). …<IMAGE>… |
