屋面虹吸排水系统安装与密封性施工关键技术

Key Technologies for Installation and Sealing Construction of Roof Siphonic Drainage Systems

摘要:

为解决大型工业厂房屋面在暴雨工况下传统重力排水效率低、易积水以及虹吸系统因施工不当而产生渗漏、气蚀等问题,文章以新泰2×600 MW级高效超超临界燃煤发电项目主厂房工程为依托,采用精细化施工与全过程质量控制方法,对屋面虹吸排水系统的安装及密封性关键技术进行了探讨。结果表明,所采用的技术方案有效保障了系统气密性、水密性与结构稳定性,各项指标均优于规范要求,在极端降雨条件下排水效率显著提升,可为同类工程提供可靠的技术路径。

Abstract:

In order to solve the problems such as low efficiency of traditional gravity drainage, easy ponding, and leakage and cavitation of siphon system due to improper construction of the roof of large-scale industrial plant under rainstorm conditions, this paper, relying on the main plant project of Xintai 2×600 MW high efficiency ultra supercritical coal-fired power generation project, adopts the methods of fine construction and whole process quality control, discusses the key technologies of installation and sealing of roof siphon drainage system. The results show that the adopted technical solution effectively ensures the airtightness, water tightness, and structural stability of the system, and all indicators are better than the requirements of the specifications. The drainage efficiency is significantly improved under extreme rainfall conditions, which can provide a reliable technical path for similar projects.