A vpce system capable of automatic monitoring sampling analysis and its technology

Abstract

The invention discloses a VPCE system allowing automatic monitoring sampling analysis and a process thereof. The VPCE system includes a tritium-contained water vapor generation device, a vortex shedding flowmeter, a product water collection device, a lower condensation column, a hydrogen generation device, a hydrogen mass flow controller, a first catalytic exchange column, a second catalytic exchange column, a third catalytic exchange column, a fourth catalytic exchange column, a fifth catalytic exchange column, heating isolating layers, an upper condensation column, a tritium-contained hydrogen dryer, a tritium-contained hydrogen mass flow controller, a gas storage device, a refrigerating unit, a molecular sieve drying device, and a chromatographic analyzer. The process includes: a, filling catalyst in the catalytic exchange columns; b, starting a tritium-contained hydrogen collecting system; c, preheating the catalytic exchange columns to the temperature of 200 DEG C; d, injecting hydrogen into the catalytic exchange columns; e, injecting vapor to the catalytic exchange columns to perform exchange reaction and staring a sampling detection system at the same time; and f, staring a condensation system. The VPCE system allowing automatic monitoring sampling analysis and the process thereof can solve the problem that the prior art is low in automatic level and exists energy waste.

Description

technical field [0001] The invention relates to a VPCE system capable of automatic monitoring, sampling and analysis and a process thereof. Background technique [0002] With the development of inland nuclear power in China, the treatment of tritium-containing wastewater has become an urgent problem to be solved. The vapor phase catalytic exchange (VPCE) reaction is an effective solution to the treatment of tritium-containing wastewater. At present, most of the monitoring and adjustment of the pressure, temperature and flow rate in the reaction process of the vapor phase catalytic exchange reaction still rely on manual regulation, and the factors of human error are relatively large; in addition, the reaction temperature is mainly adjusted by the temperature of the water vapor itself. It is troublesome to determine the reaction temperature in the reaction column; the sampling and analysis of the product water and product gas must be performed by a special person, which is ti...

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Problems solved by technology

[0003] The technical problem to be solved in the present invention is: provide a kind of VPCE system and technology thereof that can automatically monitor sampling analysis, solve the low degree of automation of the prior art, and the fixed and non-adjustable water vapor inlet in the vapor phase catalytic exchange column, thus The height between the water vapor inlet and the hydrogen inlet cannot be adjusted according to the actual situation and the problem of wasting energy

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