Siphon type rainwater discharging system construction technique

Abstract

A construction process for siphonic rainwater drainage system is provided, which comprises prefabrication and pre-embedment of a building main body, installation of roof rain strainer, installation of suspended pipeline and stand pipeline, and installation of underground pipeline. Before the installation of roof rain strainer, a supporter frame is fabricated and fixed on a bearing structure in the proper position with high firmness. The roof rain strainer is installed at the lowest point of the roof or gutter, and has 1-10 m distance to the roof edge. The number of rain strainer in each rainwater accumulation zone is at least two, and the distance between the two rain strainers are not larger than 20 m. The invention has the advantages that the siphonic rainwater drainage system is fixed mechanically, can ensure the leak-proof connection between the rain strainer and roof and has excellent anti-corrosive performance, the number of rain strainer, drainage pipe and rainwater inspection well is reduced; the ceiling space is saved; the intersection of various fields is reduced; the construction space is saved; and the siphonic rainwater drainage system has high mechanical strength, easy construction and high quality.

Description

technical field [0001] The invention relates to a construction technology of a siphon type rainwater drainage system. Background technique [0002] Since its birth in Europe, the siphon rainwater system has been rapidly developed and continuously improved around the world by virtue of its outstanding advantages such as large discharge capacity, less consumption of pipe materials, saving building space and reducing ground excavation. In China, with the increasing number of large-span and large-area buildings and the continuous improvement of building space requirements, the siphon rainwater system has also developed rapidly after being successfully applied in some airports and exhibition halls. The siphon rainwater system relies on the siphon rainwater bucket to achieve air-water separation when the water depth of the gutter reaches a certain depth. Using the height of the roof of the building and the potential energy of the rainwater, the rainwater continuously flows through...

AI Technical Summary

Problems solved by technology

The system is generally composed of siphon rainwater buckets, pipes (suspension pipes, standpipes, discharge pipes), pipe fittings, and fixing parts. Construction is carried out according to traditional techniques. There are many rainwater buckets in the system, many standpipes, and large pipe diameters. There are many buried pipes, a large amount of earthwork excavation, horizontal pipes require a slope, and the system flow is small. Many risers (systems) and slope requirements occupy a large amount of building space, which is not conducive to the requirements of modern buildings for building space.

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