CONTINUOUSLY OPERABLE GAS CLEANING DEVICE IN ION MOBILITY SPECTROMETER

摘要

Disclosed is a continuously operable gas cleaning device in an ion mobility spectrometer, comprising a housing (10), a dry gas supply unit (30), a rotary baffle plate (20) and a rotary mechanism (40), wherein a cylindrical cavity (11) is provided in the housing (10), the rotary baffle plate (20) is arranged along the axial direction of the cylindrical cavity (11), and the cylindrical cavity (11) is divided into a baking cavity (12) and a working cavity (13); the housing (10) is provided with a dry gas inlet (15), a dry gas outlet (16), a sample gas inlet (17) and a sample gas outlet (18), wherein the dry gas inlet (15) and the dry gas outlet (16) are both in communication with the baking cavity (12), the sample gas inlet (17) and the sample gas outlet (18) are both in communication with the working cavity (13); the dry gas supply unit (30) is connected to the dry gas inlet (15) and supplies dry gas to the dry gas inlet (15); a heating unit (70) is correspondingly provided in the baking cavity (12); and the rotary mechanism (40) is provided in the centre of the cylindrical cavity (11) and is connected to the rotary baffle plate (20) for driving the rotary baffle plate (20) to rotate at an interval.