AN ASH-FOULING PREVENTION SYSTEM

摘要

The present invention relates to an ash-fouling prevention system suitable in an energy conversion system, the energy conversion system comprising a fluidised bed unit and a heat exchanger having a number of spaced-apart tubes, characterised in that the ash-fouling prevention system comprises a heat exchanger ash blower which in turn comprises a heat exchanger pressurised air supply coupled to a rotatably mounted elongate hollow shaft inserted between the tubes, the shaft having a plurality of venting apertures dispersed along its length. This provides an efficient and effective way to prevent ash build up on the heat exchanger.