Device for accumulating aerosols from gases

Details Device for accumulating aerosols from gases Device for accumulating aerosols from gases

B - Operations, Transporting

03

C

B03C 3/00 (2006.01) B03C 3/38 (2006.01)

Patent

CA 2437091

The invention relates to analytical instrument-making engineering and can be used for analysing industrial gas and air emissions. The aim of said invention is to increase the sampling efficiency and to reduce, correspondingly the time of sampling. The inventive device for accumulating aerosols from gases comprises an atomiser connected to a gas pumping system, a needle, and a high- tension power supply. The atomiser is embodied in the form of a hollow cylinder provided with a dosing hole which is arranged in the central part of a lateral surface thereof. The gas pumping system comprises a dosing hole of the atomiser with a needle arranged therein. Said needle is provided with a means for moving it in relation to the atomiser. An orthogonal system used for introducing the gas flow through the dosing hole of the atomiser makes it possible to essentially increase (by 6 times) a pumping speed and correspondingly to reduce the time of a sample accumulation.

L'invention concerne la construction d'instruments analytiques et peut être utilisée pour analyser les émissions industrielles de gaz et de l'air. L'invention vise à augmenter l'efficacité de l'échantillonnage et réduire ainsi sa durée. Le dispositif d'accumulation des aérosols à partir de gaz comprend un vaporisateur relié à un système de pompage de gaz, une aiguille, une source d'alimentation haute tension. Ce vaporisateur se présente comme un cylindre creux doté dans la partie centrale de sa surface latérale d'un orifice de dosage. Le système de pompage de gaz comprend l'orifice de dosage du vaporisateur dans lequel est montée l'aiguille dotée d'un moyen lui permettant d'effectuer le mouvement réciproque par rapport au vaporisateur. L'utilisation d'un système orthogonal pour introduire le courant de gaz à travers l'orifice central de dosage du vaporisateur permet d'augmenter sensiblement (par 6) la vitesse de pompage et de ce fait réduire le temps d'accumulation de l'échantillon.

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