A fully automatic purging system that is easily retrofitted to existing Inspecta installations.
The installation of this system will eliminate the requirement for routine manual purging of the pipe-sets and maintain the leak detection system at peak performance without manual intervention. Inspecta ASLD systems are installed in most of the ESKOM power stations. Using acoustic detection technology, these systems can detect tube leaks less than 2mm in diameter in the large boiler structure. However, as the coal used by ESKOM is very high in ash content, there is a considerable amount of fly ash remaining after combustion. This fly ash swirls inside the boiler and quickly blocks the ‘listening’ pipe-sets that contain the sensitive leak-detection microphones. Unless the systems are frequently manually or automatically cleaned their ability to detect the leaks early, is significantly degraded.