Vapour Heat Exchanger VHE
The VHE from GESTRA is a steam heat exchanger equipped with connections for utilizing the expansion steam from pressure and vent lines to preheat feedwater or process water—thereby recovering valuable thermal energy that would otherwise be lost to the atmosphere.
Technical Data
- Steam mass flow 30 kg/h – 750 kg/h
- Heat load 19 kW – 469 kW
- Water flow 804 kg/h – 20,100 kg/h
Max. permissible temperature
- Shell side 6 bar g / 300 °C
- Tube side 12 bar g / 200 °C
Max. permissible pressure
- Shell side -10 °C to +200 °C / 12 bar g
- Tube side -10 °C to +200 °C / 12 bar g
Material
- Shell: Stainless steel A312
- Bellows - Expansion joint: A240 stainless steel
- Tube sheet: A182 stainless steel
- Shell-side connections: A182 stainless steel
- Corrugated tubes: A249 stainless steel
Advantages
- Reduces costs for steam generation and supply systems, and lowers CO₂ emissions.
- Increases boiler efficiency and reduces boiler desalting and desludging.
- Reduces or completely eliminates blowdown steam.
- Significant savings in fuel, water, and feedwater chemicals result in a short payback period.
- High-quality components reduce maintenance costs.