A method and device for detecting and locating vibration defects of a dry-type iron core reactor

Abstract

The invention discloses a method and a device for detecting and locating vibration defects of a dry-type iron-core reactor, wherein the method comprises: constructing a multi-physical field coupling model according to the physical field information of the dry-type iron-core reactor; simulating the multi-physical field coupling model Calculate to obtain the vibration sensitive point and original distribution cloud map of the reactor; determine the arrangement position of the vibration sensor in the reactor according to the vibration sensitive point, and obtain the vibration intensity map according to the data obtained by the vibration sensor; feedback The vibration intensity map is added to the multi-physics coupling model to obtain a distribution cloud map based on operating conditions; the vibration defect location is determined according to the original distribution cloud map and the distribution cloud map based on operating conditions. The above method realizes the accurate identification of abnormal vibration parts by combining multi-physics field coupling simulation and lattice layout sensing test, which is convenient for instructing operation and maintenance personnel to carry out maintenance.

Description

technical field [0001] The invention relates to the technical field of electric power detection, in particular to a vibration defect detection and positioning method and device of a dry-type iron core reactor. Background technique [0002] Dry-type iron-core reactors are favored by power system users for their high heat resistance, flame retardant and explosion-proof, impact resistance, long life, and easy installation and use. Among them, the vibration and noise during the operation of the reactor are a factor that affects the safe operation of the equipment. Important technical indicators, the power grid receives numerous complaints and even claims from customers due to excessive vibration and noise defects every year. [0003] For the problem of excessive vibration and noise of the reactor, the method of replacing the reactor or on-site fastening is usually adopted, but the former has high investment cost, and the latter has huge blindness, which makes it difficult to sol...

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Problems solved by technology

[0003] For the problem of reactor vibration and noise exceeding the standard, the method of replacing the reactor or on-site fastening is usually used now, but the former has high investment costs, and the latter has huge blindness, which makes it difficult to solve the problem of excessive vibration and noise

[0004] For the location of abnormal vibration and noise, the traditional method is mainly to conduct overall detection of the amplitude of vibration and noise, but this method lacks the location of the source of vibration and noise, so it is impossible to accurately obtain the root cause of the excess vibration and noise of the reactor and the location of the abnormal vibration

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