Automatic sample introduction device for insulating oil slug test

Abstract

The invention discloses an automatic sample introduction device for an insulating oil slug test. The device comprises a sample injection port, a control operation system, a liquid storage tank, a recovery valve, a first liquid isolation valve, a recovery tank, a liquid fixing tank, an injection needle, a second liquid isolation valve and an instrument and chemical tank, wherein the sample injection port is formed in the upper part of the liquid storage tank; one end of the liquid storage tank is connected with the recovery tank; the recovery valve is arranged between the recovery tank and the liquid storage tank; the first liquid isolation valve is arranged on the lower part of the liquid storage tank, and the lower part of the liquid storage tank is connected with the liquid fixing tank through the first liquid isolation valve; the liquid fixing tank is connected with the control operation system; the control operation system is used for controlling the first liquid isolation valve, the second liquid isolation valve and the recovery valve to be opened; the lower end of the liquid fixing tank is connected with the second liquid isolation valve; the injection needle is arranged at the bottom of the second liquid isolation valve, and the bottom of the second liquid isolation valve is connected with the instrument and chemical tank through the injection needle. According to the device, quantitative sample introduction and residual liquid recovery functions can be realized by the control operation system, the accuracy and the quality of the insulating oil slug test can be improved, and the accuracy of test data can be ensured.

Description

technical field [0001] The invention relates to the field of testing oil-filled equipment in substations, and is particularly used for the operation of instruments used for oil quality analysis of oil-filled electrical equipment. Background technique [0002] The insulating oil micro-water test sampling device currently used, that is, the ordinary glass syringe, needs to manually extract the quantitative test solution during use, and frequently interspersed with the rubber pad of the injection port. Damage to the sample port rubber pad, etc., resulting in inaccurate test data and low work efficiency. Contents of the invention [0003] The object of the present invention is to provide an automatic sampling device for the micro-water test of insulating oil, so as to solve the problems raised in the above-mentioned background technology. [0004] In order to achieve the above object, the present invention provides the following technical solutions: an automatic sampling devi...

AI Technical Summary

Problems solved by technology

[0002] The insulating oil micro-water test sampling device currently used, that is, the ordinary glass syringe, needs to manually extract the quantitative test solution during use, and frequently interspersed with the rubber pad of the injection port. Inaccurate test data and low work efficiency due to damage to the sample port rubber pad

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