Design and Construction of an Induction Furnace (Cooling System)

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Presentation transcript:

Design and Construction of an Induction Furnace (Cooling System) Presented By MG THANT ZIN WIN Roll No: Ph.D-M-7 3rd Seminar 23.6.2004

Review on 2nd Seminar Types of Cooling Water System - Open-circuit system with evaporative cooling tower - Fan radiator (closed-circuit) system - Dual system with Water/Water heat exchanger - Dual system with closed-circuit cooling- tower Selection of System

Presentation Outlines Objective Coreless Induction Melting Water System 1. Evaporative Closed Loop Water System 2. Dry Air Closed Loop Water System Water System and Water Treatment Conclusion

Objective To study the coreless induction melting water system – Evaporative closed loop water system and Dry air closed loop water system To know the water related problems such as water quality, water purification and maintenance, filtration for induction melting system To give some knowledges of water system and water treatment for coreless induction furnace

Water Cooling Systems Evaporative Closed Loop Water System Dry Air Closed Loop Water System

Evaporative Closed Loop Water System Fig - General Diagram of the closed evaporative water system

Dry Air Closed Loop Water System Fig – General Diagram of the closed dry cooler water system

Effects of Water Quality Reduction in the ability to heat transfer Electrochemical corrosion of tubing Degradation of the electrical preference

Water Purification/Maintenance Filtration No moving parts to wear out No screens, cartridges, cones or filter elements to replace No backwashing No routine maintenance or downtime requirements No standby equipment needs Low and steady pressure loss Easily automated

Water Requirements Water Supply Steady Supply of Water and Pressure Emergency Water Supply - City water - Battery or generator powered emergency pump - Turbine pump - Elevated emergency water storage tank

Effects of Impurities Conductivity Hardness Suspended Solids Acidity Alkalinity Slime and Algae biological fouling Dissolved oxygen and corrosion

Conclusion Water related problems may be over 50% of induction melting system downtime. The life of electrical conducting components relies heavily on the quality of water supplied by the water system.

THANK YOU