Products Description
In the heat transfer process of industrial production, the dual demands of corrosive media and efficient heat exchange often leave companies facing challenges such as easy equipment wear, low heat exchange efficiency, and high operation and maintenance costs. Our company's Corrosion Resistant Spiral Wound Tube Heat Exchangers, with their unique structural design and high - quality material selection, have become core equipment to address this pain point. They are widely used in various fields such as chemical industry, medicine, and environmental protection, providing users with stable and long - term heat transfer solutions.
Product Image
Core Technology:
Core Technology:
Spiral Wrap Tube Forming Process:
The Corrosion Resistant Spiral Wound Tube Heat Exchanger utilizes fully automated CNC winding equipment to tightly wrap thin - walled heat exchange tubes around a central tube in a spiral pattern, creating a "honeycomb" tube bundle structure. Compared to traditional shell - and - tube heat exchangers, this process increases the tube bundle fill rate by 30% - 50%. As a result, the heat transfer area is increased. Additionally, the medium flows in a spiral pattern on the shell side, reducing dead zones and eddy currents, which significantly improves heat transfer efficiency.
Corrosion - Resistant Surface Treatment:
For highly corrosive operating conditions, the surface of the heat exchange tubes undergoes a dual "passivation + coating" treatment. Electrolytic polishing and passivation of 316L stainless steel tubes reduce the surface roughness to below Ra0.2, doubling the corrosion resistance. Titanium alloy tubes are sprayed with a polytetrafluoroethylene (PTFE) coating, which is resistant to highly corrosive media such as 98% concentrated sulfuric acid and concentrated nitric acid, extending their service life to 5 - 8 years.
Overall Sealing and Welding Process:
The tube sheet and shell adopt a "flange + gasket" double - seal. The gasket is made of oil - resistant and heat - resistant flexible graphite material, and the sealing performance reaches Class V (no leakage). The connection between the tube bundle and the tube sheet is achieved through fully automatic argon arc welding, with a 100% weld inspection pass rate, avoiding medium leakage and equipment corrosion caused by welding defects.
Core Advantages
Product Advantages
Extremely Corrosion - Resistant, Reduced O&M Costs:
Utilizing high - quality corrosion - resistant materials and a specialized surface treatment process, the Corrosion Resistant Spiral Wound Tube Heat Exchanger operates stably in harsh media such as acids, alkalis, and salts. The annual corrosion rate is less than 0.01mm, extending the O&M cycle from 1 - 2 years (for traditional equipment) to 3 - 5 years. This reduces annual O&M costs by 40% - 60%.
Highly Efficient Heat Transfer, Boosting Production Efficiency:
The spirally wound structure increases medium flow rates by 2 - 3 times, improving the heat transfer coefficient by 50% - 80% compared to shell - and - tube heat exchangers. For example, in solvent cooling in the chemical industry, under the same operating conditions, the improved heat transfer efficiency can reduce solvent cooling time by 30%, helping to increase the production line capacity by over 20%.
Products Description
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