Introduction: GC-7820 automatic coal mine gas chromatograph is the key core part of the coal mine special beam tube automatic monitoring system. The 12-32 channels of the coal mine are connected to the gas beam tube, and the automatic sampling, pre-cutting, detection, automatic alarm and report printing of gas content exceeding the limit are realized through the computer control and the data processing workstation. Realize real-time monitoring of automatic analysis of gas in the process of coal seam oxidation and spontaneous combustion, improve the accuracy of early prediction and prediction of spontaneous combustion, determine the change of gas component concentration in the confined fire area, and distinguish the confined fire area special chromatograph system. The company integrates domestic and foreign analysis principles. A self-developed instrument above, with the characteristics of dual FID, single TCD, three-column parallel injection and simultaneous analysis of special chromatographic columns and multiple detectors, and can be connected to an automatic sampler to determine the downhole extinguishment based on the measurement results degree. The HF-901A coal mine special gas chromatograph realizes one sample injection, which can complete the analysis of the constant and trace components of downhole gases H2, O2, N2, CO, CO2, alkanes, alkenes, and alkynes, and does not need to change conditions, and the operation is simple Convenience. It solves the shortcoming of the narrow range of the linear amplifier of ordinary instruments. Features: 1. The instrument uses a unique logarithmic amplifier with a wide linear range. Range: 0~100%. 2. The analysis speed is fast, and the downhole gas O2, N2, CO, CH4, CO2, C2H4, C2H6, C2H2 and other components of the constant and trace detection and analysis can be completed within 5-8 minutes. 3. The instrument realizes self-protection against gas circuit failure and automatic ignition. 4. Brand new integrated digital electronic circuit, high control accuracy, stable and reliable performance, temperature control accuracy up to 0.1. 5. It has a powerful and complete power-on self-diagnosis function, an intuitive display of fault information, a power failure storage protection function, and a keyboard lock function; it has the function of resisting power mutation interference. 6. Each of the three detectors has an independent sampling system, which is accurate and does not interfere with each other. 7. Unique methanation device, small size and stable conversion efficiency.
Introduction: GC-7820 automatic coal mine gas chromatograph is the key core part of the coal mine special beam tube automatic monitoring system. The 12-32 channels of the coal mine are connected to the gas beam tube, and the automatic sampling, pre-cutting, detection, automatic alarm and report printing of gas content exceeding the limit are realized through the computer control and the data processing workstation. Realize real-time monitoring of automatic analysis of gas in the process of coal seam oxidation and spontaneous combustion, improve the accuracy of early prediction and prediction of spontaneous combustion, determine the change of gas component concentration in the confined fire area, and distinguish the confined fire area special chromatograph system. The company integrates domestic and foreign analysis principles. A self-developed instrument above, with the characteristics of dual FID, single TCD, three-column parallel injection and simultaneous analysis of special chromatographic columns and multiple detectors, and can be connected to an automatic sampler to determine the downhole extinguishment based on the measurement results degree. The HF-901A coal mine special gas chromatograph realizes one sample injection, which can complete the analysis of the constant and trace components of downhole gases H2, O2, N2, CO, CO2, alkanes, alkenes, and alkynes, and does not need to change conditions, and the operation is simple Convenience. It solves the shortcoming of the narrow range of the linear amplifier of ordinary instruments.
