Sponge city drainage pipe network rotational flow drop energy dissipation system and construction method thereof

Abstract

The invention discloses a cyclone drop energy dissipation system for a drainage pipe network of a sponge city and a construction method of the cyclone drop energy dissipation system. The energy dissipation system comprises a water inlet well, a drop well arranged on one side of the water inlet well, a water inlet pipe connected to the other side of the water inlet well, a drop pipe and an overflow pipe which are communicated between the drop well and the water inlet well, a hydraulic cyclone energy dissipation pipe connected to the interior of the drop well and correspondingly connected with the drop pipe, and a horizontal cyclone connected to the bottom end of the hydraulic cyclone energy dissipation pipe. The spiral drainage ditch is connected to the interior of the drop well and corresponds to the overflow pipe, and the overflow weir is connected to the bottom in the drop well. Through combined arrangement of the hydraulic cyclone energy dissipation pipe and the horizontal cyclone, energy dissipation of flowing water at the bottom of the water inlet well is facilitated, and energy dissipation of the water level at the high position is conducted through the spiral drainage ditch; the two energy dissipation modes are automatically controlled according to the flow, an air supplementing pipe is further designed and used for supplementing air into the pipe, and the flowing state of water flow in the water falling pipe is improved.

Description

Technical field [0001] The present invention belongs to the field of construction construction technology, and in particular, the present invention relates to a sponge urban drainage pipe network cyclone deciduous energy system and its construction method. Background technique [0002] During the construction of sponge urban drainage pipe network in the hills of the mountain, in order to transfer the initial rainwater to the suburban sewage treatment plant, or discharged into the natural water body, the pipelines are usually large, and the pipeline passes the steep slope, and the lower Or inspect the well exchange, there is a case where a large number of municipal drainage pipes is greater than 6m. In some cases, the single-stage drop in the drainage pipe is even more than 10m. For such a large water flow, it is necessary to set off the water Can smashed to reduce the damage of the drainage system. [0003] Three kinds of drop-down energy wells were included in the "drainage insp...

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Problems solved by technology

[0005] The invention provides a sponge city drainage pipe network swirl drop water energy dissipation system and its construction method, which are used to solve the problem of energy dissipation wells that can effectively dissipate energy through the swirl flow in the pipeline without damaging the well body structure, and solve the problem of water drop. Technical problems such as limited drop and insufficient drop effect

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