Detection method and detection system for detecting leakage of inner cooling water of converter station converter valve

Abstract

The invention relates to a detection method and a detection system for detecting the leakage of the inner cooling water of a converter station converter valve. The method comprises the steps of (1) sealing the isotopic tracing liquid in a cold-water liquid in a converter valve to uniformly mix the isotopic tracing liquid with the cold-water liquid in the converter valve; (2) arranging a nuclear detection counter inside the valve hall of the converter station so as to detect the tracing material in the air surrounding the converter valve. The detection of the tracing material shows the leakage of the inner cooling water inside the converter valve around the counter. Compared with the prior art, the detection method and the detection system are simple and ingenious. The problem that the leakage of the converter station converter valve is difficult to be found out timely can be effectively solved. Meanwhile, the safe and reliable operation of the converter station is greatly facilitated.

Description

technical field [0001] The invention relates to a detection technology for cooling fluid leakage of electric power equipment, in particular to a detection method and system for cooling water leakage in a converter valve of a converter station. Background technique [0002] In recent years, DC transmission technology has been more and more widely used in practical power transmission projects, and the converter valve is the core equipment of DC transmission. The cooling of the converter valve is radiated by the internal cooling water, but due to the long-term operation of the internal cooling water pipe and the complex and strong electromagnetic environment, the leakage of the internal cooling water causes the converter valve to short-circuit and catch fire from time to time, resulting in heavy losses. Although the valve hall is equipped with a very early fire alarm device, the water leakage can only be found after the fire and the short-circuit fire, and the water leakage can...

AI Technical Summary

Problems solved by technology

The cooling of the diverter valve is dissipated by the internal cooling water, but due to the long-term operation of the inner cooling water pipe and the complex and strong electromagnetic environment, the leakage of the inner cooling water leads to short-circuit and fire accidents of the diverter valve, resulting in heavy losses

Although the valve hall is equipped with a very early fire alarm device, the water leakage can only be found after the fire and the short-circuit fire, and the water leakage cannot be detected in advance to prevent the failure