Source rainwater purification and storage system based on low impact development and installation method

A low-impact development, rainwater technology, applied in waterway systems, chemical instruments and methods, water supply devices, etc., can solve the problems of lack of regulation and storage facilities, insufficient drainage capacity of rainwater pipe network, limited urban rainwater absorption capacity, etc. Heat island effect, light weight, flexible design effect

Active Publication Date: 2016-05-04
HUAZHONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a source rainwater purification and storage system based on low-impact development to solve the insufficient drainage capacity of the rainwater pipe network caused by the prior art; the urban rainwater absorption capacity is limited, and the regulation and storage facilities are serious lack of defects

Method used

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  • Source rainwater purification and storage system based on low impact development and installation method
  • Source rainwater purification and storage system based on low impact development and installation method

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specific Embodiment approach

[0029] figure 1 with figure 2 A specific embodiment of the present invention is shown: a source rainwater purification and storage system based on low-impact development, including a permeable pavement 5 and a concave green space 1, and the permeable pavement 5 is in contact with the concave green space 1 Connected, the bottom of the concave green space 1 is provided with a bioretention layer 2. The bioretention layer 2 includes a bioretention layer 6, a sand layer 7 and a gravel layer 8, which are distributed sequentially from top to bottom. The bottom of the gravel layer 8 is provided with a rainwater collection pool 12. A geotextile 9 is provided at the connection between the gravel layer 8 and the rainwater collection tank 12. The rainwater collection tank 12 is composed of a number of rainwater collection modules 11, and overflow pipes are respectively provided on both sides of the rainwater collection tank 12. 10. A water level monitoring device is installed inside the...

Embodiment 1

[0045] The water level monitoring device adopts the combination of the water level probe 14 and the water level display alarm instrument 15. The water level probe 14 feels the change of the water pressure, and then transmits the data to the water level display alarm instrument 15, so that people can monitor the rainwater in the rainwater collection tank 12 on the ground. Carry out understanding, display the water level change in the storage tank that rainwater collecting module 11 forms, when water level is lower than certain warning value, can send alarm, remind municipal management personnel to replenish water in time.

[0046] It is easy to control the rainwater in the rainwater collection tank, and the accuracy is higher, which is convenient for precise control, but it needs to be powered to use, and it is inconvenient to install.

Embodiment 2

[0048] The water level monitoring device adopts a columnar structure 17, which is vertically arranged inside the rainwater collection tank 12 and passes through the bioretention layer 2. There is liquid for observation inside the water level monitoring device. The columnar structure 17 is placed inside the rainwater collection tank 12, the water rises upward from the bottom of the columnar structure 17, and extends to the upper surface of the concave green space 1, and the water level in the rainwater collection tank 12 is judged by the liquid level of the liquid column The water level monitoring device of the columnar structure 17 is easy to install and easy to observe, does not need power supply, but has a short service life.

[0049] The rainwater collection module is installed underground, and can be installed underground in cities, communities, factories, landscapes and other places as required, without occupying the bottom space, and the rainwater collection pool 12 is co...

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Abstract

The invention discloses a source rainwater purification and storage system based on low impact development. The source rainwater purification and storage system comprises a permeable pavement road and a concave herbaceous field. The permeable pavement road and the concave herbaceous field are connected, the bottom of the concave herbaceous field is provided with a bioretention layer, the bioretention layer comprises a biological layer, a sand layer and a gravel layer that are distributed in order, the bottom of the gravel layer is provided with a rainwater collection tank, the joint between the gravel layer and the rainwater collection tank is externally provided with a geotechnical cloth, the rainwater collection tank is composed of several rainwater collection modules, the upper parts of the tank wall on two sides of the rainwater collection tank are respectively provided with an overflow pipe, the rainwater collection tank is equipped with a water level monitoring device, by adopting a module mutual splicing method, the construction becomes convenient and the construction period is short, the collected rainwater can provide water needed for growth of green plants on the ground for a long time, natural rainwater is effectively utilized to reduce the consumption of the tap water employed by people to irrigate plants. At the same time, retention rainwater is stored to reduce surface runoff, thus being conducive to construction of sponge cities and protection of the ecological environment.

Description

technical field [0001] The invention belongs to the technical field of urban drainage and waterlogging prevention and non-point source pollution control, and more specifically relates to a source rainwater utilization, purification and storage system and installation method based on low-impact development. Background technique [0002] In recent years, the rapid urbanization has led to an increasing proportion of impermeable underlying surfaces, resulting in shortened rainwater confluence time, increased peak flow, and frequent waterlogging disasters. The pollution of rainwater runoff in most cities in my country is relatively serious. The use of rainwater can effectively alleviate the shortage of water resources and promote the sustainable development of the local economy. At present, the use of rainwater has been paid more and more attention by the government, and the construction of sponge cities has been started. [0003] Low Impact Development (LID) technology is a rai...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C11/22E03F1/00E03F5/10C02F9/14G01F23/18
CPCC02F1/001C02F3/327C02F3/34C02F9/00C02F2103/001E01C11/221E01C11/225E03F1/005E03F5/105G01F23/18
Inventor 康玲周杰民周丽伟
Owner HUAZHONG UNIV OF SCI & TECH
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