Roof rainwater collection system suitable for old neighborhood renewal

Abstract

The invention discloses a roof rainwater collection suitable for old neighborhood renewal. The roof rainwater collection system includes an energy dissipation box, a metal frame, a water distribution pipe, a biological treatment tank, a water storing tank and a flower planting box; the metal frame is arranged on the ground of one side of a downpipe of a building, the energy dissipation box is fixedly arranged on a bearing platform of the metal frame, the water inlet of the energy dissipation box is connected to the lower end of the downpipe of the building, the water outlet of the energy dissipation box is connected to the water distribution pipe, and one end of the water distribution pipe extends to the other side of the downpipe of the building; the biological treatment tank is arranged on the ground under the water distribution pipe, the biological treatment tank is successively paved with a filter layer, a transition layer, a water protection layer and a drainage layer from top to bottom, a connecting pipe is arranged in the transition layer and connected to the water storing tank through the connecting pipe, and the water storing tank is arranged in the metal frame under the bearing platform; the flower planting box is arranged on the surface of the bearing platform. By the adoption of the roof rainwater collection system suitable for the old neighborhood renewal, on the premise that roads of old neighborhoods are not dug, the effects are achieved that water is collected and flood peak is staggered or reduced.

Description

technical field [0001] The invention relates to the technical field of sponge city construction, in particular to a roof rainwater collection and treatment system suitable for renovation of old residential quarters. Background technique [0002] Rainwater is an important link in the urban water cycle and regional water cycle system, and plays an extremely critical role in regulating and supplementing regional water resources and improving the ecological environment. Currently in the stage of rapid urbanization development, with the improvement of urbanization level and rapid economic development, the issue of urban stormwater management is particularly important. Many of the planning and design of urban drainage systems in my country still only focus on how to drain urban rainwater as soon as possible and simply rely on traditional concepts such as "rain and sewage diversion", which can no longer meet the requirements of modern urban development and ecological environment pr...

AI Technical Summary

Problems solved by technology

[0005] (1) The impermeable area of ​​the city increases, and when the heavy rain comes, the surface runoff is large, and the flood discharge capacity of the municipal pipe network is insufficient, which may easily cause road flooding;

[0006] (2) Rainwater immersion carries a large amount of domestic garbage and pollutants on the ground, which will block municipal pipelines, and the water body will be discharged into the natural environment, which will aggravate the pollution of natural water bodies;

[0007] (3) A large amount of rainwater is discharged into natural water bodies through the municipal pipe network, which will increase the load on the river system and even cause ecological environment damage;

[0008] (4) Cause a large loss of rainwater resources, which cannot be fully recycled

[0009] In particular, the drainage system of some old residential areas is not perfect, and the proportion of impermeable area is high, which is prone to water accumulation on the road, causing problems such as waterlogging and rainwater runoff pollution in the residential area.

Therefore, it is necessary to upgrade and transform the existing rainwater regulation and storage system of the old community. However, most of the existing renovation methods require large-scale excavation of the old community to build a rainwater collection and storage tank, which will affect the ecological environment of the original community. The environment and the layout of the community have had a great impact, and the entire upgrading process involves a large amount of construction, high costs, and a long renovation period

Images