Roof rainwater collection utilization system

Abstract

The invention discloses a roof rainwater collection utilization system. At least one reservoir is arranged on a roof and is internally provided with ordinary rainwater down pipes (2) and an artesian rainwater down pipe (3); water inlets of the ordinary rainwater down pipes (2) are higher than the bottom surface (5) of the reservoir and is led into an outdoor rainwater pipe network (6); a water inlet of the artesian rainwater down pipe (3) is flush to the bottom surface (5) of the reservoir, extends to the ground along an outer wall and is divided into two paths to be connected to the outdoor rainwater pipe network (6) and a rainwater secondary utilization pipe network (7) respectively; a first switch valve (60) is connected to a pipeline before the outdoor rainwater pipe network (6); and asecond switch valve (70) is connected to a pipeline before the rainwater secondary utilization pipe network (7). By adopting the roof rainwater collection utilization system provided by the invention, through on-off control of the first switch valve (60) and the second switch valve (70), the reservoir can be used for storing rainwater and automatically overflowing; when the rainfall is too largeor the reservoir needs to be emptied and maintained, the stored rainwater is drained to the outdoor rainwater pipe network (6); and when needing to be utilized, the stored rainwater is utilized through the rainwater secondary utilization pipe network (7). The roof rainwater collection utilization system can be widely applied to the building field.

Description

technical field [0001] The invention relates to a roof rainwater collection and utilization system. Background technique [0002] my country is a country with relatively poor water resources, and more than half of the cities are seriously short of water. Broadening sources of income and reducing expenditure are effective ways to alleviate the urban water shortage crisis. As a natural resource, rainwater recycling can not only relieve the pressure on the municipal rainwater pipe network, but also alleviate urban flood disasters. In green buildings, rainwater recycling is a key water-saving technical measure, such as eliminating the use of municipal water for landscape water bodies, and reducing the use of municipal water for non-potable water such as greening watering and square road washing. In the design of green buildings, the treated rainwater is mainly used for greening and sprinkling, landscape water replenishment and road square washing. The process is generally: out...

AI Technical Summary

Problems solved by technology

In order to facilitate operation and management, the system is generally installed in the basement, which occupies a large area, large volume, long process, and many equipments. Therefore, many green buildings can only change the functional layout of the basement. Under the current high construction cost, occupying the basement It will also lead to a decrease in space utilization, especially for high-rise or super high-rise buildings, the construction cost of the underground reservoir is very high, and the precious parking lot resources are wasted

At present, for the roof, there is still a problem that the roof temperature is too high in summer, resulting in high indoor temperature and wasting cooling energy.

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