Injection Steam Purpose

Turbines inject steam between stages for cooling, temperature control, or power augmentation. Injection steam must be absolutely dry. Even trace moisture causes blade erosion, efficiency loss, and mechanical damage. Separator provides final cleanup before steam enters turbine.

Separator Design

Compact vertical vessel with steam inlet, multiple separation stages including baffles and chevron vanes, high-efficiency wire mesh eliminator, dry steam outlet to turbine injection nozzle, and condensate drain. Short piping run to turbine minimizes re-condensation.

Moisture Limits

Turbine manufacturers specify maximum moisture typically 0.1-0.5% by weight. Some applications require even drier steam. Separator design achieves these stringent limits protecting expensive turbine investments.

Operating Pressure

Matches turbine injection point pressure typically 50-300 psig depending on stage location. Higher pressure for early stages, lower for later stages. Design accommodates pressure with minimal drop preserving steam energy.

Material Selection

Stainless steel construction ensures cleanliness and corrosion resistance. Polished internals prevent contamination pickup. Design handles saturated steam conditions with thermal cycling during operation.

Separation Efficiency

Multi-stage design removes droplets incrementally. Baffles capture large drops. Chevron vanes remove medium sizes. Wire mesh polishes final quality. Combined efficiency exceeds 99.9% moisture removal.

Condensate Handling

Separated water drains to condensate recovery system. Steam traps ensure liquid removal without steam loss. Minimal condensate volume but critical to remove protecting turbine.

Applications

Steam turbine injection systems in power plants, mechanical drive turbines in refineries and chemical plants, cogeneration facilities, and any turbine application using interstage steam injection for performance enhancement or temperature control.

Installation

Mounts close to turbine minimizing piping where re-condensation could occur. Insulated piping maintains steam temperature. Proper drainage prevents liquid accumulation. Integration with turbine controls coordinates injection.

Performance Benefits

Protects turbine blades from moisture erosion extending equipment life. Maintains turbine efficiency by preventing wet steam losses. Ensures reliable injection system operation. Simple proven protection for critical equipment.

Construction Standards

Design per ASME Section VIII for operating pressure. Materials meet turbine manufacturer cleanliness requirements. Relief protection per codes. Complete documentation with separation efficiency verification.

ERGIL turbine injection steam condensate separators deliver ultra-dry steam protecting turbine blades and maintaining performance in power generation applications.