Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Novel structure for reducing blowout pressure of urban drainage vertical shaft
The invention discloses a novel structure for reducing blowout pressure of an urban drainage vertical shaft, and belongs to the technical field of urban drainage. The novel structure is characterizedin that a flow guide shell plate is arranged inside a drainage system falling water chamber, a vent hole is formed in the side, close to an upstream pipeline, of the flow guide shell plate, and a throttle plate is arranged at an outlet of the drainage vertical shaft. In the heavy rainfall period, rapidly increased inflow of the upstream drainage pipeline enters a downstream pipeline under the action of the flow guide shell plate, and gas pre-stored in the upstream pipeline and the falling water chamber is intercepted inside the water chamber on the upper side of the flow guide shell plate, andachieves the air cushion buffering effect; and on the premise that the drainage requirement of a pipeline system is met, the blowout pressure in the open-full flow process of the drainage pipeline can be greatly reduced, and damage of high-pressure water flow to the drainage pipeline system is reduced.
本发明公开了一种降低城市排水竖井井喷压力的新型结构，属于城市排水技术领域，是在排水系统跌落水室内设置导流壳板，导流壳板靠近上游管道一侧开设通气孔口，在排水竖井出口处设置节流板。强降雨期，上游排水管道快速增加的入流在导流壳板作用下进入下游管道，上游管道及跌落水室内预存的气体截留在导流壳板上侧的水室内部，发挥气垫缓冲作用。本发明在满足管道系统排水要求的前提下，可以大大降低排水管道明满流过程中的井喷压力，减小高压水流对排水管道系统的破坏。
Novel structure for reducing blowout pressure of urban drainage vertical shaft
The invention discloses a novel structure for reducing blowout pressure of an urban drainage vertical shaft, and belongs to the technical field of urban drainage. The novel structure is characterizedin that a flow guide shell plate is arranged inside a drainage system falling water chamber, a vent hole is formed in the side, close to an upstream pipeline, of the flow guide shell plate, and a throttle plate is arranged at an outlet of the drainage vertical shaft. In the heavy rainfall period, rapidly increased inflow of the upstream drainage pipeline enters a downstream pipeline under the action of the flow guide shell plate, and gas pre-stored in the upstream pipeline and the falling water chamber is intercepted inside the water chamber on the upper side of the flow guide shell plate, andachieves the air cushion buffering effect; and on the premise that the drainage requirement of a pipeline system is met, the blowout pressure in the open-full flow process of the drainage pipeline can be greatly reduced, and damage of high-pressure water flow to the drainage pipeline system is reduced.
本发明公开了一种降低城市排水竖井井喷压力的新型结构，属于城市排水技术领域，是在排水系统跌落水室内设置导流壳板，导流壳板靠近上游管道一侧开设通气孔口，在排水竖井出口处设置节流板。强降雨期，上游排水管道快速增加的入流在导流壳板作用下进入下游管道，上游管道及跌落水室内预存的气体截留在导流壳板上侧的水室内部，发挥气垫缓冲作用。本发明在满足管道系统排水要求的前提下，可以大大降低排水管道明满流过程中的井喷压力，减小高压水流对排水管道系统的破坏。
Novel structure for reducing blowout pressure of urban drainage vertical shaft
一种降低城市排水竖井井喷压力的新型结构
LIU JIACHUN (Autor:in) / HUANG BIAO (Autor:in) / ZHU ZHIWEI (Autor:in)
22.12.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
E03F
SEWERS
,
Abwasserkanäle
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