A hydrogen flame ionization detector system with ultra-low energy consumption and material consumption

Abstract

The invention discloses a hydrogen flame ionization detector system with ultra-low energy consumption and material consumption, and belongs to the technical field of gas chromatograph equipment. The present invention includes a detector body, the detector body includes a base, a nozzle, a collector, a catalytic oxidation reactor and an insulating layer, the base is provided with a nozzle and a collector, and the collector is located in the area generated by the nozzle. Above the flame, the catalytic oxidation reactor and the base are integrally formed, and the catalytic oxidation reactor is located outside the collector, the outer side of the base and the catalytic oxidation reactor is covered with an insulation layer, and the detector body is used for heat exchange The detector and the electrolytic reactor are used to detect the sample gas to be tested, the base is used to install the nozzle and the collector, the nozzle is used to spray out the flame generated during the combustion process of hydrogen and assisted gas, and the invention recovers the exhaust gas of the detector body through heat exchange The latent heat of heat and liquefaction of water vapor in the tail gas reduces system energy consumption and is environmentally friendly.

Description

technical field [0001] The invention relates to the technical field of gas chromatograph equipment, in particular to a hydrogen flame ionization detector system with ultra-low energy consumption and material consumption. Background technique [0002] Hydrogen Flame Ionization Detector (FID for short) is a detector widely used in gas chromatograph at present. It is used to test hydrogen flame ionization and has the advantages of high sensitivity and low detection limit. [0003] When the existing hydrogen flame ionization detector is used, hydrogen is used as the gas, and the hydrocarbon-free air is used as the supporting gas. The cleanliness of the gas and the supporting gas have a significant impact on the noise and detection limits of the detector. It is mainly provided in two ways, one is bottled high-pressure gas, which needs to be replaced frequently, and the use cost is higher; the other is gas generator, the hydrocarbon removal air is generally used with an air compre...

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Problems solved by technology

[0003] When the existing hydrogen flame ionization detector is used, hydrogen is used as the gas, and the hydrocarbon-free air is used as the supporting gas. The cleanliness of the gas and the supporting gas have a significant impact on the noise and detection limits of the detector. It is mainly provided in two ways, one is bottled high-pressure gas, which needs to be replaced frequently, and the use cost is higher; the other is gas generator, the hydrocarbon removal air is generally used with an air compressor and a hydrocarbon removal system, and the volume is relatively small It is difficult to move; hydrogen is produced by electrolysis, and the gas cylinder is used as the gas source, and the pressure of the gas cylinder must be paid attention to at all times, and the gas cylinder must be replaced; while the energy consumption of the chromatograph using the air compressor and the hydrocarbon removal system is relatively high , occupying more public resources

[0004] And the working temperature of the existing hydrogen flame ionization detector is above 200°C, which needs continuous heating, which is used to raise the temperature of the detector body, gas and supporting gas, and the combustion heat, tail gas heat and latent heat of liquefaction of product water vapor have not been carried out. Energy recovery, but directly dissipated in the surrounding environment, the system energy consumption increases, and for battery-powered portable chromatographs, it puts a lot of pressure on the battery

[0005] And the water vapor produced by the combustion of the existing hydrogen flame ionization detector is not recovered but directly discharged into the air, which is easy to affect the surrounding working environment

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