A thermal desorption tube aging treatment equipment

Abstract

The invention discloses thermal desorption tube ageing equipment. The thermal desorption tube ageing equipment comprises a multi-channel air distributing device and a tubular heating device, wherein the heating device comprises a heat tube and a plurality of vertical heating tubes of which one ends are sealed; the heating tubes are arrayed annularly; the heat tube is placed in the annular array; a lower end plate and an upper end plate are respectively arranged at two ends of the heating tubes; through holes are formed in positions, which correspond to opening ends of the heating tubes, of the upper end plate; the opening ends of the heating tubes are embedded in the through holes; the heating tubes are clamped between the lower end plate and the upper end plate; one end of the heat tube is fixed on the lower end plate; an insulating layer shell is arranged between the lower end plate and the upper end plate; a connecting tube is fixed on the upper side of the upper end plate; an exhaust hole is formed in the connecting tube; the air distributing device is inserted in the connecting tube of the heating device; and the lower side of a fixing block is opposite to the upper end plate. By the air distributing device, a plurality of thermal desorption tubes can be fixed at a time, meanwhile, heating ageing is carried out, and the problems of low efficiency, troublesomeness in operation, occupation of thermal desorption, pollution of thermal desorption gas chromatography and high maintenance cost are solved.

Description

technical field [0001] The invention relates to a thermal desorption tube aging treatment equipment. Background technique [0002] Thermal desorption instrument is a gas chromatography sampling equipment, mainly used for emission performance test; thermal desorption tube is a conventional accessory of thermal desorption instrument, used to collect or place samples. Tube aging treatment, so that there is no residual substance in the tube, the general method is: in a high temperature state, use a constant airflow to purge, so that the substances in the tube volatilize. There are two ways to age the thermal desorption tube, online aging of thermal desorption instrument and aging of special aging device. The former will pollute the thermal desorption instrument during the aging process, and even contaminate the gas chromatograph and its detector, which will make the detection performance of the instrument worse. worse, the use and maintenance costs of the instrument become high...

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Problems solved by technology

[0003] The purpose of the present invention is to provide a thermal desorption tube aging treatment equipment, which can effectively solve the problems of cumbersome operation, uncontrollable single tube flow rate, environmental pollution, slow cooling rate and high energy consumption during the thermal desorption tube aging process

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