Multi-parameter comprehensive monitoring device for sulfur hexafluoride decomposed gas

Abstract

The invention provides a multi-parameter comprehensive monitoring device for a sulfur hexafluoride decomposed gas. The multi-parameter comprehensive monitoring device comprises a gas sending-recycling device, a laser cavity ring-down spectroscopy gas ring-down cavity, a laser device set, a detector, a physical parameter monitoring chamber, a physical parameter sensor and a signal collecting control module, wherein the laser cavity ring-down spectroscopy gas ring-down cavity is connected with the gas sending-recycling device; the laser device set and the detector are oppositely connected with the laser cavity ring-down spectroscopy gas ring-down cavity; the physical parameter monitoring chamber is connected with the gas sending-recycling device; the physical parameter sensor is arranged in the physical parameter monitoring chamber and is used for detecting the physical parameters of sulfur hexafluoride; and the signal collecting control module is respectively connected with the laser device set, the detector and the physical parameter sensor. The multi-parameter comprehensive monitoring device for the sulfur hexafluoride decomposed gas according to the embodiment of the invention is combined with a laser cavity ring-down spectroscopy technique and is used for detecting multi-parameter of the sulfur hexafluoride decomposed gas, is high in precision and is high in integration.

Description

technical field [0001] The invention relates to the field of multi-parameter detection of trace gas, in particular to a multi-parameter comprehensive monitoring device for decomposition gas of sulfur hexafluoride. Background technique [0002] Currently for SF 6 The research on the fault characteristics of mixed gases has been gradually carried out, but it is still in the laboratory research with analytical instruments, and there are few researches on the online monitoring technology of multi-parameters of decomposition products. At the same time SF 6 The content of decomposition products in insulating electrical products is low, and there is a lack of a high-sensitivity, fast-response online detection technology for the concentration of various decomposition components. The invention uses laser cavity ring-down spectroscopy to detect the concentration of sulfur hexafluoride decomposition gas components, and combines the temperature, internal pressure and purity detection ...

AI Technical Summary

Problems solved by technology

[0002] Currently for SF 6 The research on the fault characteristics of mixed gases has begun to be carried out gradually, but it is still in the laboratory research with analytical instruments, and there are few researches on online monitoring technology for multi-parameters of decomposition products

At the same time SF 6 The content of decomposition products in insulating electrical products is low, and there is a lack of a high-sensitivity, fast-response online detection technology for the concentration of various decomposition components

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