Tree pool device with rainwater infiltration, storage and purification functions

Abstract

The invention discloses a tree pool device with rainwater infiltration, storage and purification functions.According to the tree pool device, a pretreatment water tank (8) located below a rainwater perforated strainer (9) at the edge of a locomotive pavement and a collecting water tank (4) located below a pedestrian pavement are installed in a substrate layer (15), overflow holes (12) communicated with the substrate layer are formed in the upper portion of the pretreatment water tank (8), slow infiltration holes (14) are formed in the lower portion of the pretreatment water tank (8), and the top of the pretreatment water tank (8) is further provided with an overflow pipe (10) communicated with a municipal rainwater pipe (18); the bottom of the collecting water tank (4) is communicated with a perforated pipe (3), and a drainage pipe (6) is installed on the side wall of the collecting water tank (4) and communicated with the municipal rainwater pipe (18) laid in an original soil layer (17).The tree pool device with the rainwater infiltration, storage and purification functions has the advantages that the water infiltration and water storage capacities of a tree pool are enhanced, the function of drainage after purification is achieved, the runoff peak value is delayed and reduced, the runoff volume is reduced, and the requirements of vegetation maintenance and subsequent rainwater reuse are met.

Description

technical field [0001] The invention belongs to the technical field of urban rainwater control and utilization, and in particular relates to a tree pond device. Background technique [0002] The increase of impermeable surface in the process of urban construction has changed the original water environment, brought impact on the urban drainage system, and caused frequent occurrence of urban waterlogging problems. However, while the city is full of water, it is also facing a serious shortage of water resources. The traditional drainage method based on "rapid drainage" has caused the groundwater level to drop, and the available water sources are decreasing. The "sponge city" construction policy is proposed to solve the urban rainwater problem, restore the water environment, and restore the original water ecological balance. [0003] The control effect of tree ponds on runoff and rainwater has gradually attracted attention. At present, tree ponds with the function of rainwater ...

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Problems solved by technology

[0004] Aiming at the problems existing in the existing infiltration and storage tree ponds, the technical problem to be solved by the present invention is to provide a tree pond device with the function of rainwater infiltration and storage and purification, which can collect and reuse the runoff rainwater on the locomotive road surface and the pedestrian road surface, and enhance Water seepage and water storage capacity to meet the needs of vegetation conservation and subsequent rainwater reuse

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