Detecting and absorbing device applied to sulfur hexafluoride gas

Abstract

The invention provides a detecting and absorbing device applied to sulfur hexafluoride gas. The detecting and absorbing device is characterized in that a filter membrane arranged in a sealed tank body is a glass fiber membrane, an injector is connected with a common opening of a multi-way valve, a first branch opening of the multi-way valve is communicated with an atomizer arranged in the sealed tank body through a liquid outlet pipe, a second branch opening of the multi-way valve is connected with the bottom of a detection tank, and a third branch opening of the multi-way valve is a carbon tetrachloride liquid inlet; a liquid level control switch is arranged on a lateral wall of the upper end of the detection tank, an infrared light source and an infrared detector are oppositely arranged on the two sides of the detection tank respectively, and the top end of the detection tank is communicated with the bottom close to an air inlet of one side of the sealed tank body; the upper end of an absorbing tank is communicated with an air exhausting pipeline, a middle lower part of the absorbing tank is communicated with an air outlet of the sealed tank body through an air inlet pipe provided with an ejector and an electromagnetic valve, the outer input end of the ejector is communicated with the bottom of the absorbing tank through a liquid circulating pump, and an inlet of a six-way valve is connected with an injection pump; the buffer tank is in serial connection with an air circulating pump to be communicated with the air exhausting pipeline and the air inlet pipeline respectively, and a fluorine ion sensor is arranged at the lower end in the absorbing tank.

Description

technical field [0001] The invention provides a detection and absorption device for sulfur hexafluoride gas, which belongs to the technical field of power system detection technical background [0002] Whether it is industrial sulfur hexafluoride gas or sulfur hexafluoride gas in operation, the mineral oil content is a key indicator of its quality control, which is crucial to improving the safety and service life of electrical equipment. Quantification of mineral oil content in sulfur hexafluoride gas needs to be measured with the help of carbon tetrachloride standard solution prepared from mineral oil. Due to the strong volatility of carbon tetrachloride and the large number of prepared solutions, the parallel test error is relatively large. Not very accurate. At present, there are mainly two types of determination of mineral oil in sulfur hexafluoride gas: one is to use carbon tetrachloride solution to absorb mineral oil in sulfur hexafluoride gas, and then use infrared s...

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Problems solved by technology

Quantification of mineral oil content in sulfur hexafluoride gas needs to be measured with the help of carbon tetrachloride standard solution prepared from mineral oil. Due to the strong volatility of carbon tetrachloride and the large number of prepared solutions, the parallel test error is relatively large. Not very accurate

The device adopts the vibration absorption method, which needs manual vibration for 1 minute every 5 minutes within 1 hour. In this method, the vibration strength of the operator determines the absorption effect, which leads to laborious absorption process, and it is not easy to absorb completely, and the absorption effect is not good. Real-time judgment, resulting in large deviations in measurement results

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