Power station boiler expansion detection method and pipeline system weld joint dynamic detection method

Abstract

The invention relates to a power station boiler expansion detection method and a pipeline system weld joint dynamic detection method. The power station boiler expansion detection method comprises thesteps that displacement data of a power station boiler in different directions are obtained in real time, wherein the different directions comprise the boiler front leftward direction, the boiler front rightward direction, the boiler front forward direction and the boiler front backward direction; four groups of displacement data in the same direction at two front and back moments arerandomly selected from the displacement data; whether the difference of the displacement data in the same direction is larger than a set threshold value or not is judged; if yes, what is indicated is that the power station boiler has the expansion problem, manual intervention is needed for finding out the expansion reason, and the power station boiler is displayed in a three-dimensional dynamic form; and if not, what is indicated is that the power station boiler does not have the expansion problem. The occurrence rate of safety accidents caused by untimely inspection of a power station boiler or a pipelinesupport hanger system can be reduced.

Description

technical field [0001] The invention relates to the detection field of power station boilers and pipeline support and hanger systems, in particular to a method for detecting expansion of a power station boiler and a dynamic detection method for weld seams in pipeline systems. Background technique [0002] The expansion system of a large-scale utility boiler is a complex dynamic process. The position of the main heating surface, header, flue, and piping system of the boiler body will change greatly when the hot and cold state is converted. Therefore, when designing a large-scale utility boiler, all It is necessary to fully consider the safe expansion margin under various working conditions, and accurately calculate the expansion dead point of the boiler and the main piping system. It is necessary to consider reserving sufficient expansion gaps for the entire heating surface and furnace expansion, and to effectively limit them. For excessive expansion under abnormal working co...

AI Technical Summary

Problems solved by technology

[0004] There are problems in the original scheme: the pipe support and hanger is the main load-bearing part in the pipe system. In addition to bearing its own weight, it also bears various loads and additional stress under various working conditions, and even bears the impact of accidents stress

However, because there is no effective real-time monitoring means and the destructive power before the accident cannot be monitored, it not only increases the workload of people, but also cannot detect the "destructive power" in the event of an accident in time, which often constitutes a major technical hidden danger

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