Introduction
Spiral heat exchangers (SHEs) are specialized compact heat transfer devices where the fluid flows through spiral channels or welded spiral plates, allowing for efficient heat transfer with minimal fouling and pressure drop. Their design makes them ideal for viscous fluids, high-fouling applications, and processes involving phase change, such as steam condensation, chemical reactions, or syrup concentration.
At NORDSTONE., we design and fabricate custom spiral heat exchangers with optimized thermal efficiency, corrosion resistance, and long service life, conforming to ASME, BIS, IS, and international standards.
What are Spiral Heat Exchangers?
Spiral heat exchangers consist of two long metal strips wound around a central core to create two spiral channels for the two fluids. The unique spiral geometry promotes turbulence and counter-current flow, maximizing heat transfer efficiency while minimizing fouling and pressure drop. These exchangers are particularly suitable for applications involving viscous fluids, slurries, and where space constraints exist.
Key components include:
- Spiral metal strips forming alternating channels
- Central core or mandrel
- Cover plates and end covers
- Inlet and outlet connections
- Support frame or casing
- Sealing elements and gaskets
- Cleaning and inspection access
Our spiral heat exchangers are engineered for maximum heat transfer efficiency, fouling resistance, and reliable operation in demanding industrial environments.
