Performance Evaluation of Heat Transfer Tube and Tube Sheet Rubber Ring in Distillation Desalination

Abstract:

Based on the material of EPDM, we develop specialized rubber material for low-temperature multi-effect distillation (LT-MED) conditions. For heat transfer tube and tube sheet connected to the rubber (herein referred as EPDM rubber material) ring are used in the LT-MED desalination equipment, we make regular aging and multivariate synergistic aging test on EPDM. According to the experimental results, we develop an evaluation method applicable to usage of sealing rubber material under LT-MED conditions, and rubber material properties are measured by the changes of mechanical indicators. Finally, we also tested the sealing performance of the sealing rings. The results show that EPDM rubber material can tolerate the LT-MED conditions with the ring boost rate of 0.038kPa/h when the rates of change in Shoer hardness range from-5% to 10%, the rates of change in tensile strength within-20%, the rates of change in elongation at break range from-30% to 10%.

• Periodical: Advanced Materials Research (Volume 777)
• Pages: 3-10
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.777.3
• Online since: September 2013
• Authors: Yan Hui Liu, Yan Li, Qing Chun Lv, Ke Xu, Ling Pin Zhang
• Keywords: Aging, Ethylene-Propylene Diene Monomer (EPDM), Rubber Sealing Material, Seawater Desalination

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