Apparatus achieving dynamic vacuum degassing and use method of same

Abstract

The invention provides an apparatus achieving dynamic vacuum degassing and a use method of same. The apparatus includes a five-way connection pipe, four two-way electromagnetic valves, a degassing cylinder and a passive cylinder, wherein the two-way electromagnetic valves have a two-position connection structure; four ways of the five-way connection pipe are connected respectively to four oil inlet / outlet pipes of the four two-way electromagnetic valves, the rest one way of the five-way connection pipe is connected to the oil inlet / outlet of the degassing cylinder through a connection pipe; the degassing cylinder also has a sample gas outlet; a telescopic rod of the degassing cylinder is telescoped under driving by a driving device; a limit switch for controlling the movement of the telescopic rod is arranged on the degassing cylinder; the oil inlet / outlet of the passive cylinder is connected to one of the two-way electromagnetic valves through an oil path connection pipe. By means ofthe precise cooperation of the driving device and the degassing cylinder, precise metering of detection oil is achieved. The detection oil flows forth and back between the degassing cylinder and the passive cylinder, so that escape rate and separation efficiency of gas are improved, and extremely high degassing efficiency is achieved.

Description

technical field [0001] The invention relates to a device for realizing dynamic vacuum degassing and a use method thereof, in particular to a device for separating characteristic gases dissolved in transformer oil applied to gas phase oil chromatographic on-line monitoring equipment in substations. Background technique [0002] The oil and gas separation device is the leading core component in the gas chromatograph, and the dissolved gas in the oil can be separated from the oil through the oil separation operation. The degassing rate and consistency of oil and gas separation are of great significance for improving the accuracy and stability of food analysis, and it is widely used in online monitoring equipment for oil chromatography in substations. At present, there are two main ways for online monitoring devices to realize oil-gas separation: vacuum degassing method realized by vacuum pump and headspace degassed method realized by circulating oil pump or gear piston pump. T...

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Problems solved by technology

[0003] The present invention improves the above-mentioned problems, that is, the technical problem to be solved by the present invention is that the oil-gas separation device in the existing gas chromatograph has strict requirements on the ambient temperature, and the overall complexity is high

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