1. Water-Cooled Short Network & Transformer
   
   
   • Cools high-current components (busbars, transformer coils).
   • Stabilizes electrical parameters, improves power factor (to ~0.95), cuts reactive power loss.
   
   
2. Integrated Water Cooling System (Closed Loop)
   
   
   • Components: Plate heat exchanger, variable-frequency cooling tower, VFD pumps, online water quality monitoring (TDS, turbidity, Fe²⁺).
   • Control: PLC-based automatic flow/temp/pressure regulation; flow fluctuation <±3%.
   • Safety: Backup water supply, over-temperature/under-flow alarms.
   
   

Key Energy-Saving Mechanisms

1. Reduced Thermal Loss
   • Efficient water cooling lowers shell/roof heat radiation → heat loss reduced by 25–40%.
   • Maintains higher furnace thermal efficiency, less arc power wasted.
   
   
2. Optimized Electrical Efficiency
   • Low-impedance water-cooled conductors → higher thermal efficiency.
   • Stable arc → reduced electrode consumption (15–20%).
   
   
3. Intelligent Variable-Frequency Operation
   • VFD pumps/fans: match flow to heat load → pump power down 20–30%.
   • Smart control stabilizes water temp ΔT at optimal 4–8°C.
   
   
4. Waste Heat Recovery (Optional)
   • Recover heat from cooling water for preheating boiler feedwater or workshop heating.
   • Improves overall energy utilization by 8–12%.
   
   

Performance Advantages

• Power consumption: ~20–30% lower than conventional LF.
• Refractory life: extended by ~40%.
• Productivity: shorter refining time, higher tapping accuracy.
• Steel quality: better desulfurization/degassing/cleanliness.
• Environmental: less radiation, lower dust emissions.

Typical Technical Specifications

• Capacity: 20–150 t
• Rated power: 3–15 MW
• Cooling water flow: 50–150 m³/h (furnace lid)
• Inlet water temp: ≤35°C; Outlet ≤43°C
• Water pressure: 0.4–0.6 MPa
• Power factor: ≥0.92

Summary