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Control method of city rainwater runoff

A control method and rainwater technology, which is applied in the field of resources and environment, can solve problems such as increasing drainage load, polluting urban hydrological cycle, water quality, and blockage of drainage pipes, so as to improve utilization rate, eliminate the phenomenon of looking at the sea, and reduce drainage load. Effect

Inactive Publication Date: 2017-10-03
YANCHENG INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, rainwater runoff will increase the drainage load of rainwater runoff in urban rainwater pipes, and the drainage pipes will be blocked. In severe cases, it will cause the city to look at the sea and seriously hinder people's normal traffic operation.
In addition, stormwater runoff will also pollute the city's hydrological cycle, water quality
[0004] Most of the existing methods of controlling urban rainwater runoff adopt the method of interception, but this method needs to continuously improve the water flow capacity and sewage treatment capacity of the entire urban rainwater pipeline, which is costly and complicated to implement. Utilization is also low

Method used

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  • Control method of city rainwater runoff
  • Control method of city rainwater runoff
  • Control method of city rainwater runoff

Examples

Experimental program
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Effect test

no. 1 example

[0034] Please refer to figure 1 , figure 2 , image 3 , the present embodiment provides a method for controlling urban rainwater runoff, comprising the following steps:

[0035] S1. A rainwater storage tank 100 is set.

[0036] Further, a side slope 140 is set around the rainwater storage tank 100 . Therefore, the entire rainwater storage tank 100 can be further made more stable.

[0037] Further, the bottom of the rainwater storage tank 100 is provided with an impermeable layer 113 .

[0038] Aquitard refers to the soil layer through which moving water can pass. In general, rock formations with a permeability coefficient greater than 1 m / day and night can be considered permeable, layered layers are called permeable layers, and bands are called permeable zones, while rock formations with a permeability coefficient less than 0.001 m / day and night are called impermeable layers.

[0039] It should be understood that the specific composition and arrangement of the above wat...

no. 2 example

[0063] Please combine figure 1 and Figure 4 , this embodiment provides a control method for urban rainwater runoff, which is basically the same as the first embodiment, except that the water inlet pipe 210 is set to connect the urban rainwater main pipe with the rainwater storage tank 100, and in larger When rainfall or rainstorm, or rainwater runoff is relatively large, rainwater enters the rainwater storage tank 100 through the water inlet pipe channel 210 .

[0064] Through this structure, rainwater can also enter the rainwater storage tank 100, thereby realizing the control of urban rainwater runoff.

[0065] In summary, the present invention provides a method for controlling urban rainwater runoff. By setting up a rainwater storage tank, rainwater is introduced into the rainwater storage tank at the initial stage of rainfall and when the rainwater runoff is small. When there is heavy rainfall or heavy rain, and the rainwater runoff is large, the urban rainwater is intr...

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Abstract

The invention relates to the field of resources and environments, in particular to a control method of city rainwater runoff. The method is characterized in that a rainwater storage tank is set, and rainwater is guided into the rainwater storage tank in the early stage of rainfall and when the rainwater runoff is small; during heavy rain or a storm and when the rainwater runoff is large, the city rainwater is guided into a rainwater retention pipe in an overflow or a pipe and channel entering manner, and the water level of rainwater in the rainwater storage tank is controlled to be within storage water level; when the water level of the rainwater in the rainwater storage tank is higher than the storage water level, the rainwater is discharged out of the rainwater storage tank; after the rain, part of the rainwater in the rainwater storage tank is utilized, and the water level of the rainwater storage tank is controlled to be at landscape water level. The method has the advantages that storage-landscape integration is achieved by utilizing the rainwater storage tank, the rainwater runoff draining load of rainwater pipelines can be lowered, the phenomenon of city flooding can be eliminated greatly, and rainwater utilization rate can be increased sufficiently.

Description

technical field [0001] The invention relates to the field of resources and environment, in particular to a method for controlling urban rainwater runoff. Background technique [0002] Runoff refers to the flow of rainfall and snowmelt water flowing along the surface or underground under the action of gravity. There are different types of runoff. According to the source of water flow, there are rainfall runoff and meltwater runoff; according to the flow mode, it can be divided into surface runoff and underground runoff, and surface runoff can be divided into slope flow and channel flow. In addition, there are solid runoff formed by solid matter (sediment) in the water flow, and ion runoff composed of chemically dissolved substances in the water flow (see chemical runoff). [0003] The runoff of rainwater seriously affects the normal operation of the city. For example, rainwater runoff will increase the drainage load of rainwater runoff in urban rainwater pipes, and the drai...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E03F1/00E03F5/10
CPCY02A10/30E03F1/00E03F5/10E03F5/107
Inventor 延克军龚晓芳荀琦
Owner YANCHENG INST OF TECH
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