Double layer drainage pipeline collecting well device for sponge city and water collection method

Abstract

The invention discloses a double layer drainage pipeline collecting well device for a sponge city. The device comprises at least one collecting well unit, wherein the collecting well unit comprises a collecting well body, a water inlet pipe and a water drainage pipe, the water inlet pipe and the water drainage pipe are of a double pipeline structure, and the double layer pipeline structure comprises an inner layer pipeline, an outer layer pipeline and support pillars; small openings are formed in the pipe wall of the inner layer pipeline, the inner surface of the inner layer pipeline is wrapped by one layer of a pipeline filter screen, and a first seal cover is arranged at the back end of the water inlet pipe; a second seal cover which is used for sealing an annular cavity between the inner layer pipeline and the outer layer pipeline is arranged at the front end of the water drainage pipe, and a rainwater recycle pipe is connected to the back end of the water inlet pipe; the invention further discloses a water collection method of the double layer drainage pipeline collecting well device for the sponge city. The double layer drainage pipeline collecting well device has the advantages that filtration and collection of rainwater can be completed, waste materials with larger size are blocked and stopped in the inner layer pipeline, the filtered rainwater enters the outer layer pipeline through the small openings of the inner layer pipeline, and the waste materials deposited in the inner layer pipeline can be discharged out of the pipe along with the water flow; the device is simple in structure and saves cost.

Description

technical field [0001] The invention relates to the technical field of rainwater treatment, in particular to a water collection well device and a water collection method for double-layer drainage pipes in a sponge city. Background technique [0002] Sponge city refers to a city that can be like a sponge and has good "elasticity" in adapting to environmental changes and responding to natural disasters. When it rains, it absorbs, stores, infiltrates, and purifies water, and "releases" the stored water when needed. and take advantage of it. Let man-made cities transform into super sponges that can absorb rainwater, filter air, and filter pollutants, achieve benefits such as cooling, flood control, drought resistance, and carbon capture, fundamentally solve the problem of man-made cities blocking water and ecology, and move towards real ecology and low carbon city. [0003] Effective drainage pipeline facilities play an important role in the construction of sponge cities. Dra...

AI Technical Summary

Problems solved by technology

Although the above patents have their own unique advantages, the patent CN205475658U relies on infiltration to alleviate the flood peak effect is very limited, and the patent CN205907719U essentially eliminates impurities through mechanical action, and the energy consumption is relatively high

In addition, most of the garbage in the water collection well is large in size, which is not conducive to the removal of the pump body.

More importantly, rainwater cannot be collected and reused, wasting resources

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