On-line system for automatically monitoring oil state of steam turbine oil in use

Abstract

The invention discloses an on-line system for automatically monitoring an oil state of steam turbine oil in use. The system comprises a sampling part, a signal acquisition control part and a data transmission and management part, wherein the sampling part acquires a signal of an acquirer and inputs the signal into a signal acquisition control part through a cable for signal processing and transmission; and the data transmission and management part analyzes the signal through communication between a lower computer and an upper computer according to software data of the upper computer. The design concept is that the system can monitor the viscosity and the moisture content of the steam turbine oil and the change of the particle pollution grade in real time and on line; when a viscosity index, a moisture content index or a particle pollution grade index are greater than a set average threshold value or a peak threshold value, the system sounds an audible and visual alarm and indicates workers on the spot to take measures for a steam turbine lubrication oil system; and a phenomenon of running failure of a steam turbine, which is caused by the change of the characteristic of steam turbine lubrication oil, can be avoided.

Description

technical field [0001] The invention belongs to the technical field of mechanical equipment operation state monitoring, and relates to an online automatic monitoring system for the oil state of steam turbines in use. Background technique [0002] It is well known that wear and poor lubrication are the main causes of damage or failure of machinery and equipment. The oil monitoring technology developed in the past ten years can better solve this problem, especially in recent years, the oil monitoring technology has been developed rapidly in various industries. The initial oil monitoring is only the analysis of oil pollution, mainly to analyze the physical and chemical indicators of oil products, such as viscosity, moisture, acid value, flash point, mechanical impurities, etc. Lubricants in use are usually detected by the method of determining performance indicators of petroleum products to evaluate changes in their quality. The development of industrial production has made t...

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Problems solved by technology

The rapid development of portable oil measuring instruments has well overcome the shortcomings of high cost, complicated operation and lagging measurement results of off-line laboratory analysis methods. It can be carried around, on-site measurement and on-site results. Liquid viscosity meter, ferrography meter, particle counter, etc., but these instruments have not achieved real online monitoring in reality

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