A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Semi-self-flowing drainage system of pumped storage power station and control method
The invention provides a semi-self-flowing drainage system of a pumped storage power station and a control method. A water collecting well is arranged at an outlet of a self-flowing drainage tunnel, multiple submersible pumps are arranged in the water collecting well, and in addition, an emergency gate is further arranged, so that the requirement for a water level of a river channel at the outlet of the drainage tunnel in semi-self-flowing drainage can be effectively lowered, and the original requirement that a check flood level needs to be lower than the bottom surface elevation of the lowest layer of a plant is reduced to the requirement that a normal water storage level is lower than the bottom surface elevation of the lowest layer of the plant. According to the semi-self-flowing drainage system of the pumped storage power station and the control method provided by the invention, the excavation length of the self-flowing drainage tunnel can be greatly shortened, even original schemes which can only use a water pump to carry out pump drainage overhaul and seepage drainage can be modified into a semi-self-flowing drainage scheme, and a full-self-flowing drainage scheme is modified into the semi-self-flowing drainage scheme, so that the length of the self-flowing drainage tunnel is greatly shortened, and the power station investment can be greatly reduced.
本发明提供一种抽水蓄能电站半自流排水系统及控制方法，通过在自流排水洞的出口设置集水井以及在集水井内设置多个潜水泵，此外，还设置了事故闸门，从而可以有效地降低半自流排水中对排水洞出口河道的水位要求，使得原来要求的校核洪水位需低于厂房最低层底面高程降低为正常蓄水位低于厂房最低层底面高程即可。本发明能够大大地缩短自流排水洞的开挖长度，甚至可以使得很多原本只能使用水泵抽排检修、渗漏排水的方案修改为半自流排水方案，将全自流排水方案修改为半自流排水方案大大地缩短了自流排水洞的长度，能够极大地降低电站投资。
Semi-self-flowing drainage system of pumped storage power station and control method
The invention provides a semi-self-flowing drainage system of a pumped storage power station and a control method. A water collecting well is arranged at an outlet of a self-flowing drainage tunnel, multiple submersible pumps are arranged in the water collecting well, and in addition, an emergency gate is further arranged, so that the requirement for a water level of a river channel at the outlet of the drainage tunnel in semi-self-flowing drainage can be effectively lowered, and the original requirement that a check flood level needs to be lower than the bottom surface elevation of the lowest layer of a plant is reduced to the requirement that a normal water storage level is lower than the bottom surface elevation of the lowest layer of the plant. According to the semi-self-flowing drainage system of the pumped storage power station and the control method provided by the invention, the excavation length of the self-flowing drainage tunnel can be greatly shortened, even original schemes which can only use a water pump to carry out pump drainage overhaul and seepage drainage can be modified into a semi-self-flowing drainage scheme, and a full-self-flowing drainage scheme is modified into the semi-self-flowing drainage scheme, so that the length of the self-flowing drainage tunnel is greatly shortened, and the power station investment can be greatly reduced.
本发明提供一种抽水蓄能电站半自流排水系统及控制方法，通过在自流排水洞的出口设置集水井以及在集水井内设置多个潜水泵，此外，还设置了事故闸门，从而可以有效地降低半自流排水中对排水洞出口河道的水位要求，使得原来要求的校核洪水位需低于厂房最低层底面高程降低为正常蓄水位低于厂房最低层底面高程即可。本发明能够大大地缩短自流排水洞的开挖长度，甚至可以使得很多原本只能使用水泵抽排检修、渗漏排水的方案修改为半自流排水方案，将全自流排水方案修改为半自流排水方案大大地缩短了自流排水洞的长度，能够极大地降低电站投资。
Semi-self-flowing drainage system of pumped storage power station and control method
一种抽水蓄能电站半自流排水系统及控制方法
WANG DELOU (author) / GUO MEICHAO (author) / LI CHENGJUN (author) / HE BIAN (author) / CHEN SHUNYI (author) / YAN LI (author) / ZHANG XIN (author) / LI GAOHUI (author) / REN TAO (author) / FANG JIE (author)
2021-08-06
Patent
Electronic Resource
Chinese
IPC:
E02B
HYDRAULIC ENGINEERING
,
Wasserbau
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