Power Generation Equipment Preservation
Power Generation Dehumidifiers | Turbine & Boiler Preservation
Power Generation Dehumidifiers
Humidity accelerates corrosion in boiler drums and turbines, reducing uptime and lifespan. Desiccant dehumidification delivers dry air to critical enclosures, minimizing oxidation on hot and cold surfaces. Ideal applications include transformer vaults, switchgear rooms and closed‑loop boiler preservation during outages.
Traditional Preservation Methods & Drawbacks
Common preservation techniques include:
- Over‑pressurizing steam circuits with nitrogen or steam
- Chemical inhibitors such as hydrazine, ammonia, or octadecylamine
- Vacuum drying and air ventilation with heated or inhibited air
Equipment Preservation Scope
Desiccant dehumidifiers protect a wide range of power‑generation components during outages or idle periods. Vision Air Conditioning’s systems safeguard:
- Turbines and generators
- Boiler drums and steam circuits
- Gas circuits and condensators
- Ash and slag removal systems, electric filters, and pump assemblies
Substation switchgear, transformers, and control cabinets
Advantages of Desiccant Dehumidification
- Desiccant systems offer a modern alternative with clear benefits:
- High Drying Efficiency at low energy consumption
- Effective Performance even at low ambient temperatures
- Compact & Lightweight Design for easy installation
- Full Automation via humidity sensors and control valves
- Corrosion‑Resistant Casing in stainless steel or aluminum‑zinc
- No Condensate Drain Required, simplifying installation Compliance with all relevant EU and North American standards
Installation Benefits & ROI
- Integrating Vision Air Conditioning’s desiccant dehumidifiers yields:
- Reduced Preservation Costs by eliminating costly chemicals and consumables
- Lower Energy Consumption compared to heated ventilation methods
- Faster Drying Times and quicker return to service
- Enhanced Equipment Readiness, avoiding emergency repairs during outages
- Extended Asset Lifespan through continuous, precise humidity control
Corrosion Mechanisms & Critical Humidity Levels
- Uncontrolled humidity accelerates atmospheric corrosion on steel surfaces by 100–2000× when RH exceeds 60 %, compared to 30–40 % RH.
- For boiler steels, the critical relative humidity is 60 %; above this threshold, corrosion rates increase dramatically, thinning metal by up to 0.057 mm per year.
- Maintaining RH below 50 % is essential to slow oxidation and extend equipment lifespan.
Why Choose Vision Air Conditioning?
Proven track record in thermal plant boiler preservation
On‑site commissioning to grid‑safety standards
24×7 remote monitoring and service contracts
Protect your assets
Ensure polymer and glass bonding quality with industrial desiccant dehumidifiers. Vision Air Conditioning supplies custom chemical‑process solutions.