Real-Time Detection of Thermolysis Ions in Substation Based on Solar-Blind Ultraviolet Light Scattering Method

Real-time monitoring of mixed particles in the substation environment can form a reliable early warning before the fire, which will save valuable time for fire investigation and treatment and avoid fire. The ambient gas in the substation is a mixed gas containing components such as dust in addition to thermolysis ions to be detected. In order to accurately detect the concentration of thermolysis ions in mixed gas, in this paper, a solar-blind ultraviolet scattering particle measurement method is proposed, which can simultaneously detect thermolysis ions in a substation environment. It is shown that the scattering phase function of solar-blind ultraviolet ellipsoidal particles is smoother than that of its equivalent spherical particles, so some typical particle shape distribution functions can better describe the scattering characteristics of thermolysis ions, which is beneficial to the measurement of thermolysis ions.