Ultrasonic prevention and removal of biofouling from marine electricity generators

超声波预防和去除船用发电机的生物污垢

• 批准号: 101314
• 金额: $ 70.66万
• 依托单位: PLANT INTEGRITY LIMITED
• 依托单位国家: 英国
• 项目类别: Collaborative R&D
• 财政年份: 2014
• 资助国家: 英国
• 起止时间: 2014 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=101314
• 关键词: Ultrasonic; prevention; removal; biofouling; marine

Bio-fouling is the unwanted adhesion of biological materials to any wetted surface and it grows continuously in thickness with sustained immersion. Fouling causes severe structural loading on all the submerged components of marine electricity generators, lowers the efficiency of generation and can disable a generator totally through the clogging up of moving components in turbines or pumps. Existing anti-fouling coating techniques applied to ship hulls cost £3.8 billion pa worldwide, yet fouling still causes an extra fuel cost of £5.1 billion pa. So for marine generators a novel fouling prevention system is proposed, usable on any generator design, which deploys low power quasi-continuous low KHz guided ultrasonic waves, mode selected both to repel bio-molecules and couple into all the submerged generator components from a single source location, to cost effectively, without harm to marine life, prevent fouling with 100% surface coverage, avoiding all downtime for fouling removal.

生物污垢是生物材料对任何润湿表面的不希望的粘附，并且随着持续的浸泡，其厚度不断增长。结垢会对船舶发电机的所有水下部件造成严重的结构负荷，降低发电效率，并可能通过堵塞涡轮机或泵中的移动部件而使发电机完全失效。现有的应用于船体的防污涂层技术在全球范围内花费了38亿英镑，但污垢仍然会导致51亿英镑的额外燃料成本。因此，对于船舶发电机，提出了一种新型的防结垢系统，其可用于任何发电机设计，其部署低功率准连续低KHz引导超声波，模式选择为排斥生物分子并从单个源位置耦合到所有浸没式发电机部件中，以成本有效地，而不伤害海洋生物，以100%的表面覆盖防止结垢，避免所有停机时间以去除结垢。