VAD – Variable Annular Desuperheater

VAD本質上是一個動態的輪廓，其不銹鋼噴頭集中放在主管線當中。 管道作為減溫器的外體和壓力邊界，它配置於主蒸氣管道中並透過法蘭或對焊的方式焊接在主管線上。

*High Turndown

*Low Cooling Water Pressure Required

*Close Approach Temperature

*Close Temperature Control Tolerance

*Preheats The Cooling Water

Performance

*Turndown:  15:1

*Approach temperature:  60C

*Temperature Tolerance:  30C

*Steam Velocity:  3 m/s

*Spray water Pressure:  >1 Bar

*Steam Pressure Drop:  0.2 Bar

Features

• Temperature control to within 5 °C (10 °F) of saturation
• Horizontal or vertical installation
• High rangeability 15:1
• Coolant pressure need only be 0.5 bar (7 PSI) superior to vapor
• Self-regulating 360 degrees coolant annulus for uniform distribution.
• No spray nozzles to introduce blockage concerns
• Full atomization over the entire operating range
• Minimal vapor side pressure drop
• No thermal liners required.
• Butt weld or flanged to ANSI 150, 300, 600 or DIN PN10, 16, 40, 64, 100.
• Body: Carbon, Chrome Moly, and Stainless Steel. Spray Head and Wetted Pants: Stainless Steel