A METHOD AND DETECTION DEVICE OF THE LIGHT FRACTIONS OF DIATHERMIC OIL WITH DISCONTINUOUS OPERATING

摘要

This invention concerns a device, as well as a detection method of the light fractions in diathermic oil circulating in a system. It predicts to collect a quantity of fluid to be examined from a duct, in which diathermic oil is flowing, to store the fluid to be examined in a temperature and pressure detection chamber and having a variable volume in a rectilinear direction starting from an initial one, causing the fluid in said chamber to expand through an increase in its volume so as to cause a separation of the volatile light fractions from the oil, detecting at least the minimum pressure reading in said detection chamber following the expansion of the fluid as an indication of the presence of separated volatile components, returning the detection chamber to the initial volume by evacuating the examined fluid towards the duct from which it was collected.