Nitric Acid Centrifugal Compression

Casing Revamping
Correct and uniform contact pressure restored; no more gas leakage
Country:
Mexico
Application:
Nitric Acid Production Plant
Compressor type:
Horizontally Split Centrifugal Compressor
Service
N2 + NOx compression
Power:
11.5 bara
Pressure:
Nitric Acid Centrifugal Compression
Problem

Gas leakage between upper and lower semi-casings

Solution
  • RCA indicated a reduction of contact pressure due to corrosion and wrong maintenance
  • Static FEA to determine contact pressure distribution
  • Increased stud bolts diameter, added new tie rod