Study On Boiler Tube Leakage Monitoring Systems

The leakage of four tubes which are water wall tubes, superheater tubes, reheater tubes, economizer tube, has always been in wear, corrosion, high pressure, and high temperature, that makes them be the frequent leakage of power stations. And that gives a tremendous impact to the power plant's safety and economy. And that becomes the key part of the safety and economy to large thermal power plant.Therefore, if we could find the damenge of four tubes earlier, we can make proper arrangements for maintenance strategies to reduce maintenance time.Four-leakage power line monitoring device is the professional equipment to monitor the inside pipeline leaking, which account for the most important part of the equipment, directly affacts the acoustic signal acquisition. Through simulation or field experiment, obtained for different cavity frequency sound wave tube collection and analysis capabilities.Through simulated or live experiment, I acknowleged the knowledge of uiltilizing the equipment to collect and analyse sound wave with different frequency. The pape is to elaborate and anlyse the leaking principle of boiler from both thermodynamics and acoustics perspectives,analysising the characterises of leakage jet based on the theories of Thermodynamic and acoustic, estabilshing the modle of corresponding mathematical and physics, furthermore, i applied in/put into practice sound catheter creatively and i do the relative experients and research. This paper illustates and analysises the leaking theory of boiler from both thermodynamics and acoustics perspectives.