Twisted Tube® Heat Exchanger
More efficient and more reliable than conventional shell and tube heat exchangers
The innovative design of our TWISTED TUBE® Heat Exchangers delivers more efficient and more reliable performance than conventional shell and tube heat exchangers. TWISTED TUBE® Technology features a revolutionary bundle construction that increases heat transfer and reduces pressure drops — while increasing heat transfer surface area and eliminating damaging vibration. Dead spots are eliminated where fouling can accumulate and reduce effective heat transfer surface area.
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Specifications
Plug-and-Play Solutions
The TWISTED TUBE® Bundle is designed as an easy retrofit solution for your existing shell and tube layout. No additional piping changes are necessary — simply replace your old, less efficient tube bundle with a better solution. Our innovative design eliminates baffles and damaging tube vibration. The uniquely shaped tubes are arranged on a triangular pattern that provides adjacent support as fluid swirls freely alongside. Gaps between the tubes make it easier to clean on the shell side. Rounded ends allow for the use of conventional tube-to-tubesheet joints.
Key Features
- Elimination of damage-induced vibration — longitudinal flow and multi-point bundle support mitigate flow-induced vibration
- Increased heat transfer — more surface area in a given shell size; increased tube-side heat transfer coefficient
- Reduced pressure drops — longitudinal flow yields lower pressure drop vs. segmental baffle designs
- Potential fouling mitigation — no baffles means no dead spots; swirl flow on tube side increases shear velocity and decreases boundary layer
- Reduced NOx and emissions — enhanced performance increases crude/feed outlet temperatures upstream of fired heaters, reducing energy consumption and NOx
- Plug-and-play retrofit — drop-in replacement for existing shell and tube layouts with no piping changes
Typical Applications
- Crude preheat
- Feed/effluent — Reformer (CCR and semi-regeneration)
- Feed/effluent — Hydrotreater & Hydrocracker
- Feed/effluent — Alkylation
- Overhead condensers
- Reboilers (kettle and J-Shell)
- Lean/rich amine
- Compressor interstage coolers
- Texas Towers — Hydrotreating/Reforming
- KBR Rose Exchangers
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