Water leakage judgment method and device for water inlet facility of hydropower station

• Main Authors: DENG CONGLIN, ZHANG PENG, SONG LINLI, LI JING, ZHENG DINGTONG
• Format: Patent
• Language: Chinese; English
• Published: 02.05.2023
• Subjects: MEASURING; PHYSICS; TESTING; TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES; TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR

The invention relates to the technical field of hydropower stations, discloses a water leakage judgment method and device of a hydropower station water inlet facility, and aims to solve the problem of hysteresis of water leakage detection of an existing hydropower station water inlet facility. According to the angular velocity, the angular acceleration, the working water head and the output power of the generator, the machine passing flow of the generator set is calculated on the basis of a predetermined formula; obtaining the flow in the pressure steel pipe, calculating the difference value between the flow in the pressure steel pipe and the machine passing flow to obtain the flow difference, and judging whether water leakage exists or not according to the flow difference and the rated flow of the generator set. The timeliness, the accuracy and the comprehensiveness of water leakage monitoring of the water inlet facility of the hydropower station are improved, meanwhile, the monitoring cost is reduced, and t