1GC-9860Characteristics of specialized gas chromatograph for gas analysis:

1.Adopting microcomputer control, full keyboard operation, large screen LCD Chinese display, instrument configuration includes thermal conductivity and dual hydrogen flame detector, methane conversion furnace, four parallel circuits, manual and six way valve injection, dedicated chromatographic column, and three signal output ports.

2.The chromatographic column adopts a dedicated packed column and is equipped with three pre cut column devices, effectively preventing contamination of the three analytical columns and ensuring long-term uninterrupted operation of the entire instrument.

4.Can be equipped with multi-channel mine gas automatic sampling device.

5.Fully automated operation: The instrument is automatically controlled by a microcomputer, and the six way valve manual conversion function: manual (bladder sampling) and micro needle injection do not affect each other.

6.Fast analysis speed:4~8Within minutes, complete the analysis of gas constants with one injectionO2、N2、CH4、CO、CO2、C2H4、C2H6、C2H2.

7.Different methane contents in gases can be detectedCO2、C2H4、C2H6,、C2H2Trace components.

8.Gas * small detection concentrationCO、C2H2≤0.5ppm ,C2H4≤0.1ppm.

This system has a high degree of integration and automation, with strong specificity, complete functions, reasonable structural design, simple operation, high analysis accuracy, and short analysis cycle. It is an indispensable and important equipment in gas full component analysis, gas monitoring analysis, and inspection work.

The instrument is mainly used for gas analysis and detection in gas companies, mining bureaus, and underground gas analysis in coal mines.

2、 Instrument configuration

Gas chromatograph:GC-9860type. twoFIDAmplifier,TCDConversion furnace, six way valve sampler, three signal automatic switching output, dedicated filling column

3、 Principles and Methods of Analysis

The instrument adoptsTCD,twoFIDDetector, packed column system, methane conversion device, injection through a six way valve to achieve one-time injection analysis of mine gas, for:O2，N2TCDdetection due toFIDanswerCO，CO2Not responding. So we need toCO，CO2Under high temperature, catalyzed by nickel contact enzyme andH2The reaction is transformed intoCH4, inFIDI conducted testing. The reaction equation is as follows:

CO＋3H2＝CH4＋H2O CO2＋4H2＝CH4＋2H2O

CH4 C2H4 C2H6 C2H2FIDII testing.

Analysis conditions

Constant temperature analysis:

Column temperature:60℃FID：140℃TCD：120℃

Converter:360℃ Bridge flow:120ACurrent Speed:35ml/min

Injection volume:1ml

4、 Temperature control:

Column room: Room temperature~400℃

Conversion: Room temperature~400℃

FIDDetector: Room temperature~400℃

TCDDetector: Room temperature~400℃

Sensitivity of thermal conductivity detector ≥5000mv?ml/mg，

Detection limit of hydrogen flame detector ≤1.0×10-11g/s；

System accuracy: ≤1%

5、 Instrument usage conditions

1. Power supply voltage:220V～±22V 50Hz±0.5Hz

2. Rated power: ≤2000W

3. Environmental temperature:+5°C～+35°C

4. Relative humidity: ≤85%

5.The instrument placement site must not have corrosive gases or electric or magnetic fields that affect normal operation. The instrument placement workbench should be stable, without vibration, and away from the hydrogen cylinder2mNo electric furnaces or sparks are allowed inside