Influence of materials deposition on functioning of backwater valves

材料沉积对回水阀功能的影响

• 批准号: 500611-2016
• 负责人: McBean, Edward
• 金额: $ 1.78万
• 依托单位: University of Guelph
• 依托单位国家: 加拿大
• 项目类别: Engage Grants Program
• 财政年份: 2016
• 资助国家: 加拿大
• 起止时间: 2016-01-01 至 2017-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=608193
• 关键词: Influence; materials; deposition; functioning; backwater

The existing situation in Canada is such that basement flooding due to sewer backups is the most expensive source of home insurance claims. Exacerbating an already bad situation is that issues of basement flooding are likely going to increase, as a result of more intense storms and increasing urbanization. While the intent is that backwater valves are intended to prevent backflow into basements, and hence to abate the above-indicated basement flooding, the hydraulic performance of backwater valves warrants serious attention for both design and maintenance needs. The challenging location of the valves, the 'clogging' of the valve operation (as a result of faeces, cotton batting, dental floss, etc.), and the undesirable aspects of maintaining the valves, are inhibiting the performance of the backwater valves. The result is that for many individual houses, while the valves may exist, they are either totally or partially nonfunctional. This project will develop flow visualization information that will allow a computer model to be employed, thereby enabling computer models to investigate incidences of historical flooding as have been incurred and assess the functionality of backwater valves which have had significant materials fouling the valves.

加拿大目前的情况是，由于下水道备份造成的地下室洪水是家庭保险索赔最昂贵的来源。加剧已经很糟糕的情况是，由于更强烈的风暴和日益增加的城市化，地下室洪水问题可能会增加。虽然回水阀的目的是防止回流到地下室，从而减少上述地下室洪水，但回水阀的水力性能在设计和维护方面都需要认真注意。阀门的挑战性位置，阀门操作的“堵塞”（由于粪便、棉絮、牙线等），以及维护阀的不希望的方面，抑制了回水阀的性能。结果是，对于许多单独的房屋，虽然阀门可能存在，但它们完全或部分不起作用。该项目将开发流动可视化信息，允许使用计算机模型，从而使计算机模型能够调查历史洪水的发生率，并评估回水阀的功能，这些阀门有大量的材料堵塞。