A method and device for online monitoring and real-time health diagnosis of pressure vessel damage

Abstract

The invention relates to an online monitoring and real-time health diagnosis method for pressure container damage and equipment. The method comprises the following steps: splitting a pressure container into a hollow columnar section cylinder and a hollow spherical sealing head, and respectively performing damage diagnosis positioning and damage display on the hollow columnar section cylinder and the hollow spherical sealing head on the basis of coordinate conversion. The equipment comprises a first signal sensor, a second signal sensor, a matrix switch, an oscilloscope, an amplifier, a function generator and a computer, wherein the first signal sensor is arranged on the hollow columnar section cylinder; the second signal sensor is arranged on the hollow spherical sealing head; the computeris connected with the oscilloscope and the function generator respectively; the amplifier is connected with the function generator; one end of the matrix switch is connected with the first signal sensor and the second signal sensor respectively; the other end of the matrix switch is connected with the amplifier and the oscilloscope respectively; through automatic switching of the matrix switch, different triggering / receiving routes can be achieved. Compared with the prior art, the method has the advantages of comprehensive detection, small online damage diagnosis positioning errors, and the like.

Description

technical field [0001] The invention relates to the field of pressure vessel damage detection, in particular to an online monitoring and real-time health diagnosis method and equipment for pressure vessel damage. Background technique [0002] Pressure vessels are special equipment widely used in production and life that may cause explosion or poisoning. Due to various problems in the design, manufacture, installation and operation of the pressure vessel in service, it leads to abnormal failure, resulting in sudden damage accidents. The location of pressure vessel damage can provide guidance for further shutdown detection and effectively avoid catastrophic accidents. Traditional pressure vessel damage location methods are mainly based on statistical principles and reliability theories such as the safety factor method to ensure the structural integrity of pressure vessels. However, in the real service process, the pressure vessel is subjected to various natural and load envi...

AI Technical Summary

Problems solved by technology

Although this method does not require downtime testing, the acquisition of the damaged nanoindentation hardness and the subsequent analysis and calculation process are very complicated, which cannot meet real-time requirements and cannot achieve damage location

At present, the health monitoring of complex structures such as pressure vessels is mainly focused on conventional detection methods, and there is a lack of effective online monitoring methods and equipment to achieve online monitoring and damage location.

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