Self-powered environment corrosion monitoring system for wind power equipment

Abstract

The invention discloses a self-powered environment corrosion monitoring system for wind power equipment. The system comprises a plurality of detector units and a cloud server in communication connection with the detector units through a communication unit, each detector unit comprises a plurality of corrosion sensors, a power supply and a collector, and each collector comprises a main control module, a power supply module, a gear switching module, a signal processing module, an AD conversion module, a wireless communication module and a local storage module which are electrically connected with the main control module. According to the invention, non-contact environmental corrosion monitoring can be realized so that the monitoring is more convenient; the overall power consumption of the detector units is low, long-endurance use can be achieved, self power supply can be achieved through a battery, and installation and movement are more convenient; the corrosion condition can be tested on line, the corrosion rate, the accumulated corrosion amount and other data can be accurately measured, and convenient analysis, early warning and the like can be achieved; the collector can accurately measure the micro-current of the nA level so that the detection effect is more accurate.

Description

technical field [0001] The invention relates to the technical field of corrosion monitoring of wind power equipment, in particular to a self-powered environmental corrosion monitoring system for wind power equipment. Background technique [0002] Existing detection of corrosion of wind power installations generally adopts coupon weight loss test, macroscopic external detection, ultrasonic thickness measurement, section radiography, eddy current detection, simulation test and other methods. Using the method of weight loss test of coupons, there are problems such as small amount of coupon data and complicated weighing process for rust removal; macroscopic visual inspection is the most intuitive and effective detection method, but it needs to peel off the insulation layer material for observation, and the construction cost is high. There are periodic repetitions, and if the location where the insulation material is stripped is not the most serious area, it may reflect wrong inf...

AI Technical Summary

Problems solved by technology

Using the method of weight loss test of coupons, there are problems such as small amount of coupon data and complicated weighing process for rust removal; macroscopic visual inspection is the most intuitive and effective detection method, but it needs to peel off the insulation layer material for observation, and the construction cost is high. There are periodic repetitions, and if the location where the insulation material is stripped is not the most serious area, it may reflect wrong information; although the ultrasonic thickness measurement technology can detect the remaining thickness of the inner and outer walls after corrosion, it is also difficult to remove the insulation material. Obtain readings on the corroded surface, need to polish the surface, etc. For the section radiography technology, its advantage is that it can be used when the equipment is running, and the thickness of the inside and outside can be measured. However, considering issues such as safety, radiation, and the environment, the use area must be strict Access restrictions, and can only detect small-scale cross-section pipes, which may miss local corrosion areas; the influence of eddy current penetration effects is only suitable for inspecting metal surface and near-surface defects, and cannot inspect deep internal defects of metal materials

There are many factors affecting the eddy current effect, and it is still difficult to identify and quantify the defects; the simulation test method has limited simulation conditions and cannot reflect the corrosion situation of the actual operation of the equipment

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