Blow-Through System
Optimises condensate removal and enhances drying efficiency with a high-velocity steam flow
Submit your enquiryIn rotating steam-heated cylinders, centrifugal force can create a rim of condensate that insulates the heat transfer surface, leading to inefficient drying, uneven temperature profiles, and increased energy consumption.
Traditional steam traps might not be sufficient to remove this rim. A Blow-Through System overcomes this by allowing a small, controlled amount of live steam (the "blow-through" steam) to continuously pass through the dryer along with the condensate. This high-velocity flow dynamically sweeps the condensate and non-condensable gases out of the dryer, ensuring that the entire internal surface remains effectively heated. This system typically involves specialised rotary joints, syphons, and a blow-through steam trap or valve on the discharge side.
Key Industries / Applications:
Industries: Paper, textile, food (e.g., drying cereals, starch), chemical, and any industry utilising large, rotating steam-heated cylinders for drying
Applications: Dryer sections of paper machines, textile drying cans, rotary drum dryers, and other steam-heated rotating equipment where condensate rimming and air binding are problematic
Technical data
- Product capacity / performance range: Designed for specific dryer dimensions and operational speeds, ensuring optimal heat transfer by effectively removing condensate and air
- Compliance or standards: Engineered to meet relevant industry standards for steam systems and drying processes
- Design or customisation:
- Components: Typically includes rotary joints, syphons, blow-through steam trap/valve, and associated piping for steam supply and condensate/blow-through return
- Control: The amount of blow-through steam can be controlled to optimise efficiency based on dryer speed and load
- Condensate handling: Often integrated with a flash vessel or condensate recovery system to recover the blow-through steam and condensate
- Materials: Robust materials suitable for rotating high-temperature steam applications
Product features
