Instrument introduction and method description:

The online trace hydrocarbon analyzer is an analytical instrument designed based on chromatographic principles, used for the composition analysis of trace hydrocarbons in Huai state oxygen in the main condenser of air separation equipment

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. Trace hydrocarbon analyzers can help you detect and predict in advance!　

The trace hydrocarbon chromatographic analyzer is an automatic gas chromatograph that can continuously and automatically analyze trace hydrocarbons in liquid oxygen, liquid air, and suction air in air separation processes, and monitor explosive components C in real-time1-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. It can continuously monitor1～4Sample of gas to be tested on the road.

2. 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.

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

4. The instrument is easy to operate, and the injection and sampling time can be set arbitrarily.

Technical Specifications:

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%