Mining bundle tube chromatograph manufacturer price Coal gas monitoring analyzer Spontaneous combustion gas analysis bundle tube monitoring system

Product Description:

The GC-9280 gas chromatograph (specifically designed for mine gas analysis) consists of a main unit, a high-performance chromatography column, a methane converter, a thermal conductivity detector, a dual hydrogen flame detector, and an automatic injection system. It is controlled by a microcomputer and can achieve automatic injection of six valves and automatic switching of detector signals. The signals are collected and processed by a mine gas dedicated chromatography workstation. thatinstrumentAs a supporting device for the monitoring system of spontaneous combustion fires in coal mines, it is widely applicable to the prediction and prevention of natural fires in large, medium, and small coal mines. 24-hour continuous cycle monitoring of underground gas contents such as O2, N2, CO, CH4, CO2, C2H4, C2H6, C2H2, etc. Through the determination and analysis of natural fire marker gases, timely prediction and forecasting of temperature changes at ignition points provide scientific basis for the prevention and control of coal mine natural fires and mine gas accidents.

The instrument is manufactured based on the principle of chromatography, and can achieve rapid separation and high-sensitivity detection of mixtures composed of H2, O2, N2, CH4, CO, CO2, C2H4, C2H6, and C2H2 using efficient dedicated chromatography columns and analysis processes. This instrument is a specialized chromatograph designed for coal mine fire prediction and fire safety. It can analyze the atmosphere of mine gas, predict the degree of gas explosion danger in fire prediction, and fully analyze the components of gas outburst. The instrument has high impact resistance and vibration resistance, and can be applied to vehicles.

Technical Specifications

1. * Small detection concentration: O2, N2 ≤ 0.05% H2 ≤ 5ppm CO ≤ 0.5ppm
CH4、CO2、C2H4、C2H6、C2H2≤0.1ppm

2. Analysis cycle: One injection, complete analysis of H2, O2, N2, CH4, CO, CO2, C2H4, C2H6, and C2H2 components, with an analysis cycle of no more than 7 minutes

3. Number of detectors, amplifiers, and output signal channels that can work simultaneously: 3

4. Event control (external control device switch control): Control * load 220V AC 1A

5. According to the user's long-term warning requirements, instrument configuration can be increased to analyze the C3 and later components in coalbed methane, expanding the analysis scope.

Main technical indicators

Injection port flow rate, chromatographic column carrier gas flow rate, detector gas flow rate, precision control

Multiple injection ports can be configured: packed column injection port (with spacer blowing, can be connected to large-diameter capillary column), splitter/Non split capillary injection port, program-controlled cold column head injection port, volatile component series connection injection port (specially equipped with sample pretreatment devices such as headspace/sweep capture/thermal desorption);

Detector Design for Industry *

The amplification plate with special ceramic treatment is stable during humid seasons, automatically ignites, and has automatic protection against hydrogen leakage, making it safe and reliable.

Precise control program temperature rise and furnace temperature, precise furnace temperature tracking design

The internal control accuracy of the furnace is less than0.01℃； The temperature difference between internal points shall not exceed 1 ℃; Rapid heating and cooling, with a programmed heating rate of 120 ℃/min; Balance time of 10 seconds; Cooling time (300 ℃ to 50 ℃) for 6 minutes; The accuracy of temperature control (with a difference of less than 0.3 ℃ from the actual temperature).

Fully imported valve configuration system

*More equipped8 valves (four-way valve, six way valve, ten way valve, and liquid injection valve optional); Automatic control and sequential operation; 0 leakage blowing technology; High speed switching solenoid valve has a long service life (1 million times, 10mS).

Separated columns oven

In a multi column chromatography system, the operating temperatures of different columns can be set separately to achieve the best separation effect for each column;

Convenient implementation of pneumatic cutting technology

It can achieve multidimensional chromatography function to separate and analyze complex samples, and can realize the blowback function of the chromatography column to save analysis time and cycle;

technical indicators