Novel optical fiber type leakage detector used for direct-current converter valve

Abstract

The invention provides an optical fiber type leakage detector used for a direct-current converter valve. The optical fiber type leakage detector comprises a liquid receiver provided with a valve base shielding mental plate, a platform, a volume collecting component and a leakage detecting component. The volume collecting component which is installed on the platform through a rack is connected with the leakage detecting component through the optical fiber. The volume collecting component comprises a tipping bucket, a balancing pouring weight, a rotating shaft and collimating lens. The leakage detecting component comprises an optical emitter, an optical receiver and valve base electrons. Compared with the prior art, the optical fiber type leakage detector used for the direct-current converter valve is simple in structure, high in measuring accuracy, low in optical attenuation rate and good in sealing performance.

Description

technical field [0001] The invention relates to an optical fiber leak detector, in particular to a novel optical fiber leak detector for DC converter valves. Background technique [0002] Since the valve tower of the diverter valve is equipped with a waterway system, the leakage of the waterway system will cause the components of the valve tower to be damaged, and the decrease in water cooling efficiency will cause the cooling effect of the electrical components of the entire valve tower to decrease. There is a water leakage detection device to detect water leakage, so as to realize the protection with the operation of the valve tower. [0003] There are mainly two types of leak detection devices used in the valve tower of the converter valve in the prior art: the plane mirror reflection type and the detection cylinder float type. The feature of the plane mirror reflection type leak detection device is that a plane mirror for water leakage detection is installed at the bott...

AI Technical Summary

Problems solved by technology

However, the flat mirror reflective leak detection device has the following disadvantages: ①The optical cable probe is easily polluted when exposed to the air, resulting in false alarms; ②The leak detection device cannot identify the leakage flow rate, that is, it cannot report different signals according to the leakage situation, resulting in background control The water leakage of the valve tower cannot be accurately monitored

However, the detection cylinder float type leak detection device has the following disadvantages: ①The optical fiber detection system has no redundant configuration, and water leakage alarms caused by non-water leakage are prone to occur; ②The light attenuation of the leak detection device is large, and the optical transmitter needs to have a higher transmission power , the optical receiver needs to have a low recognition power; ③The leak detection device is prone to large attenuation of the optical path and false alarms after long-term operation, resulting in aging of the leak detection device and deterioration of the performance of the leak detection device; ④The large volume of the detection buoy makes the detection The overall volume of the drain device is large

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