Requirements for Test Conditions of Domestic Electric Gas Chromatography System
Domestic power gas chromatographAccording to the requirements of the "Determination of Dissolved Gas Components in Insulation Oil (Chromatography Method)" in the power system, the domestic power gas chromatograph adopts microcomputer automatic control, full keyboard operation, and large screen LCD display. The domestic power gas chromatograph has the characteristics of high temperature control accuracy, stable and reliable performance, high sensitivity, and good repeatability. The domestic power gas chromatograph adopts a dual column parallel diversion system, equipped with TCD and dual FID and methane conversion furnace. The domestic power gas chromatograph can achieve full analysis of nine components of dissolved gases (H2, O2, N2, CH4, C2H2, C2H4, C2H6, CO, CO2) in oil with one injection. Domestic power gas chromatography can be used for internal fault detection of oil and gas equipment in power systems, analysis of cooling media for hydrogen cooled generators, analysis of sulfur hexafluoride impurities, analysis of boiler flue gas, analysis of natural gas, and environmental monitoring analysis. It can be used for both analysis and general analysis, therefore
Domestic power gas chromatographBecoming an effective equipment for gas analysis in petroleum, chemical, mining and other systems.
Main technical indicators of domestic power gas chromatograph
1. Temperature control
① Temperature control range:
Column chamber: room temperature+15 ℃ -399 ℃
Vaporization chamber: room temperature+30 ℃ -399 ℃
Converter: Room temperature+30 ℃ -399 ℃
Thermal conductivity detector: Room temperature+30 ℃ -399 ℃
Hydrogen flame detector: room temperature+30 ℃ -399 ℃
② Temperature control accuracy: ± 0.1 ℃
2. Thermal conductivity detector
① Sensitivity: For small hydrogen detection concentrations ≥ 5 μ l/L
② Noise: ≤ 0.05mv
③ 漂移: ≤0.15mv/30min
3. Hydrogen flame detector
① Small detection concentration of hydrocarbons ≥ 0.1 μ l/L
② Low detection concentration for CO and CO2 ≤ 5 μ l/L
③ Noise: ≤ 0.05mv
④ 漂移: ≤0.15mv/30min
4. The start-up time of domestic power gas chromatograph shall not exceed 3 hours.
The domestically produced power gas chromatograph is a new type of gas chromatograph that uses a Chinese large screen LCD display. The domestically produced power gas chromatograph has functions such as power failure, over temperature, gas cut-off protection, and Chinese prompt, as well as a five stage lift function. The basic configuration of the domestically produced power gas chromatograph includes two detectors, FID and TCD, and a methane converter,Domestic power gas chromatographThe gas chromatograph is widely used in the manufacturing enterprises of oil filled electrical equipment in the power industry, such as transformer plants and bushing plants, as well as in the gas analysis units of power plants, coal chemical and steel plants. Its performance is, operation is simple, and detection is sensitive.