Product Introduction:

Air Separation Online Trace Hydrocarbon Analyzer GC-7900It is a specially designed analytical instrument based on chromatographic principles, used for the analysis of trace hydrocarbons in Huai state oxygen in the main condenser of air separation equipment. It is a rare detection equipment for large, medium, and small air separation equipment manufacturers.

Air separation is currently the main method for industrial production of oxygen, nitrogen, and argon. Due to air pollution, hydrocarbons contained in the raw air enter the oxygen concentrator system, directly threatening safety production, and the situation is quite serious. In recent years, there have been hundreds or thousands of explosions in large, medium, and small air separation equipment both domestically and internationally due to excessive hydrocarbon content, resulting in astonishing direct and indirect losses. If detected at any time, the content of hydrocarbons can be predicted in advance, and measures can be taken early to prevent explosions. Trace hydrocarbon analyzer can help you detect and predict in advance at any time, making it an indispensable choice for air separation explosion-proof!　

Special gas chromatograph GC-7900 for trace hydrocarbon analysis in air separationIt can continuously and automatically analyze trace hydrocarbons in liquid oxygen, liquid air, and suction air in air separation processes, and monitor explosive component C1 in real-time-Ｃ4The changes in the content provide important reference data for the safe operation of the main condenser in air separation equipment. It can also be used as a process controller for detecting hydrocarbons in industries such as petrochemicals, steel, and gas.

The trace hydrocarbon chromatographic analyzer is an automatic analyzer, and the pipeline extending from the air separation tower is connected to the instrument. The instrument is controlled by a microcontroller automation program to drive an automatic six way valve for sampling and injection. As long as the analysis conditions and program settings are set, it can automatically detect hydrocarbons in liquid oxygen without human supervision, and can also print out the experiment report directly to the experimenter.

Instrument features:
1. Large screen 7.5-inch LCD Chinese display, real-time display of various temperatures and operating conditions, clear and intuitive content, truly realizing human-machine dialogue;
2. Power on self-test, wide range self diagnostic function, can accurately determine the fault location and alarm;
3. Six independent temperature control channels (vaporization chamber and capillary vaporization chamber can independently control temperature), with eight step programmed temperature rise function;
4. Overtemperature protection function: If any circuit exceeds the set temperature, the instrument will automatically power off and sound an alarm;
5. The unique vertical heating device makes sample vaporization more reliable, minimizes the heat radiation generated by the vaporization chamber, and ensures minimal temperature deviation inside the column box;

6. It can continuously monitor 1～4 samples of gases to be tested.

7. It can automatically schedule, sample, analyze, print reports, achieve good separation and analysis results, and provide reliable data. It is a truly unmanned fully automatic analysis instrument.

8. It can achieve free switching between automatic and manual injection to obtain more reliable data.

9. The instrument is easy to operate, and the injection and sampling time can be set arbitrarily.
10. It can be used for online analysis and detection, as well as offline use.

Technical parameters:

1. Analyze the host:Online trace hydrocarbon chromatography analyzer,3Take samples on the road,1Road standard gas

2. Measurement objects: Trace hydrocarbon content in main cold liquid oxygen, storage tank liquid oxygen, and air

3. Measurement range:0.01ppm ----1%

4. Detection limit:

5. Stable startup time:<1hour

6. Temperature control accuracy: ≤±0.1℃

7. Instrument normal operation stability: Baseline noise:< 0.5×10-13A

Baseline drift:< 1×10-13A/30min

8. Quantitative repeatability (calculated as acetylene):RSD≤3%

Analysis spectrum of GC-7900 air separation online trace hydrocarbon analyzer: