Zero-energy roof rainwater recycling reclaimed water utilization system

Abstract

The invention discloses a zero-energy-consumption roof recycled rainwater utilizing system. The zero-energy-consumption roof recycled rainwater utilizing system comprises a bridging plate (1) arranged on a building roof. The water outlet end of the bridging plate (1) is communicated with an initial-rainwater discarding device (2), a settling pond (3), a filtering pond (4), a water storage pond (5), a landscape irrigation water system and a building sanitation water system in sequence. The bridging plate (1), the initial-rainwater discarding device (2), the settling pond (3), the filtering pond (4), the water storage pond (5) become lower in the horizontal direction in sequence so that the gravity potential energy gradient can be formed. By means of the zero-energy-consumption roof recycled rainwater utilizing system, the nature rainfall can meet the need for recycling water of a building, and zero-energy utilization of the rainwater is achieved through the gravity potential energy gradient of the water. Meanwhile, the rainwater is collected and stored, the flood discharging pressure of a rainwater drainage pipeline system is reduced, the formation time of peak runoff is delayed, the peak discharge is reduced, the disaster reduction capacity of the design area is improved, and the zero-energy-consumption roof recycled rainwater utilizing system plays a positive restraining role in urban inland inundation.

Description

technical field [0001] The invention relates to a rainwater collection and reuse system, in particular to a zero-energy roof rainwater recycling reclaimed water utilization system. Background technique [0002] my country is a country that suffers from water shortages and frequent floods, floods and droughts. my country's population accounts for 22% of the world's population, but the fresh water share is only 8%, and the per capita water resource is only 2500m 3 / year, about 1 / 4 of the world's per capita share, equivalent to 1 / 6 of the United States, 1 / 58 of Canada, ranking 110th in the world, and listed as one of the 13 water-poor countries in the world. At the same time, my country is not only short of water resources, but also unevenly distributed in time and space. Water-scarce cities are mainly distributed in North China, Northwest China, Jiaodong and coastal areas. The contradiction between supply and demand in northern and coastal areas is more prominent. [0003] ...

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is that in order to adapt to the basic national policy of energy saving and environmental protection, save water resources, and strengthen the utilization of reclaimed water, the present invention proposes a zero-energy roof rainwater recycling reclaimed water utilization system to reduce the cost of water resources. Consumption, improve the utilization rate of rainwater, on the other hand, as a demonstration of energy saving, water saving and reuse of reclaimed water, improve the public's awareness of environmental protection, and solve the problem that the plants in the vertical greening system are difficult to irrigate, and at the same time realize the basic self-sufficiency of sanitary water in the building

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