Detection method for oil sludge in oil used in electric power industry

Abstract

The invention provides a detection method for oil sludge in oil used in electric power industry. The provided detection method can be used for quantitatively detecting the oil sludge content in oil, and comprises the steps of weighing two oil samples respectively, taking one oil sample for detecting pentane insolubles, and taking the other oil sample for detecting toluene insolubles, wherein the difference between the pentane insolubles and the toluene insolubles is oil sludge in oil. The detection method provided by the invention can be used for accurately detecting the oil sludge content in oil, and the change trend of the oil sludge in oil is clear at a glance during operation supervision, so that accurate judgment on the safe operation conditions of a unit can be given. The detection method can be used for overcoming the defect that an existing detection method can only qualitatively detect whether the oil sludge exists or not, and has the advantages of easiness and convenience in operation, obvious experimental phenomenon, simple operation process, and high accuracy.

Description

technical field [0001] The invention belongs to the field of electric power oil detection technology and power plant safety operation supervision, and in particular relates to a method for detecting oil sludge in electric power oil. Background technique [0002] Electric power oil includes turbine oil, anti-fuel oil, transformer oil, etc., which mainly play the roles of lubrication, cooling, regulation and insulation. During operation, the oil is affected by oxygen, temperature, electric field, electric arc, moisture, particles and catalysts, etc., undergoes chemical reactions such as oxidation and cracking, and will continue to deteriorate, producing a large amount of peroxides and alcohols, aldehydes, ketones, Oxidation products such as acid, and then generate insoluble matter such as oil sludge through condensation reaction. Sludge is the final product of deep oil deterioration and is an aggregate of solid and liquid matter in oil that tends to form sediment. The existe...

AI Technical Summary

Problems solved by technology

This method is to inject the tested oil sample into a specified container and dilute it with a solvent. After a certain period of time, observe whether there is precipitation or not. It belongs to a qualitative analysis method. It can only give the result of the presence or absence of sludge, but cannot give the specific amount of sludge. how much judgment

In operation supervision, sometimes it is necessary to compare the amount of sludge to understand the development trend of sludge, so as to judge whether the operation of the unit is safe. It is impossible to give accurate conclusions by visual observation with qualitative methods.

This poses a safety hazard to the operation of the unit