a kind of sf <base:sub> 6</base:sub> Device and method for preparing hf standard gas in gas

Abstract

The invention discloses a device and method for preparing HF standard gas in SF6 gas, wherein the preparation device includes: a constant temperature water bath device having a first water bath and a second water bath communicated with each other, and a heating module is arranged in the first water bath and a temperature detection module; the top of the second water bath is sealed, and the inside is provided with a sealed inner tank for holding hydrofluoric acid liquid, and the front and rear ends of the inner tank are respectively connected to the air inlet pipeline passing through the second water bath And the gas outlet pipeline, the outlet of the gas outlet pipeline is connected with the SF6 gas acidity measuring device. It solves the problem of standard value transmission when using the SF6 gas acidity detection device to measure acidity, and can directly calibrate the SF6 gas acidity detection device to make the measurement data more accurate. It has the characteristics of short time consumption, good effect, and convenient use. The safe operation of power equipment provides a strong guarantee.

Description

technical field [0001] The present invention relates to a kind of SF 6 The device and method for preparing HF standard gas in gas belong to the technical field of power system application. Background technique [0002] Sulfur hexafluoride gas has excellent insulation and arc extinguishing properties, and is widely used in various high-voltage and ultra-high-voltage electrical equipment. In order to ensure the safe operation of electrical equipment, it is necessary to control the content of various impurity components in sulfur hexafluoride gas, especially the acid and acidic components that are severely corrosive to the solid insulation materials of electrical equipment must be strictly controlled, the most important of which is One of the most corrosive acids is HF. Therefore, sulfur hexafluoride gas needs to be tested for acidity before use, but at present, SF 6 The standard measurement method of gas acidity cannot be directly calibrated, resulting in the inability to j...

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Problems solved by technology

Therefore, sulfur hexafluoride gas needs to be tested for acidity before use, but at present, SF 6 The standard measurement method of gas acidity cannot be directly calibrated, resulting in the inability to judge the accuracy of the detection data, which brings hidden dangers to the safe construction and production of the power grid, and needs to be improved urgently

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