Apparatus and process for tracking the quality transition of a lubricating oil, method of tracking and use of that method for measuring the iron content of a lubricating oil

摘要

This device (2) for tracking the quality transition of the lubricating oil circulating in the installation (M) is connected upstream to the installation (M) and downstream to the recovery pan at least one conduit (4) Contains. This device comprises a first shut-off valve (20) for the circulation (F1) of the lubricating oil in the conduit, a buffer reservoir (26) for accumulating the lubricating oil, one for the first valve (20) in the conduit. And the other further include a first bypass line (28) connected to the buffer reservoir (26). The device also comprises a second control shut-off valve (23) for the circulation of lubricating oil in the first bypass line (28), a second for lubricating oil from the buffer reservoir (26) to the recovery pan. A discharge line (42) and a third control shutoff valve (44) for the circulation of lubricating oil in the second discharge line (42) are included. The sensor (50) offers the possibility of measuring the content of a given chemical element of the lubricating oil sample at the outlet of the buffer reservoir with X fluorescence technology. The sensor comprises an x-ray source, an x-ray detector and a cell intended to contain the lubricating oil sample to be analyzed. The cell comprises a wall forming a window for transmitting light exiting the source or traveling towards the detector, which is made of poly (ethylene terephthalate). [Selected figure] Figure 1