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    • 8. 发明申请
    • SAMPLE INTRODUCTION DEVICE
    • 样品介绍设备
    • US20160189945A1
    • 2016-06-30
    • US14985219
    • 2015-12-30
    • Nuctech Company Limited
    • Qingjun ZHANGYuanjing LIZhiqiang CHENWeiping ZHUHuishao HEQiufeng MAYaohong LIUXiang ZOUJianping CHANG
    • H01J49/04G01N27/62G01N30/14
    • H01J49/0422G01N30/14G01N30/16G01N30/20
    • A sample introduction device comprises a sampling unit, a gas suction pump, adsorption units, a piston cylinder and a desorption cylinder that comprises a desorption chamber, a carrier-gas inlet, a split/purge vent and an analyzer nozzle communicating with the desorption chamber. A heating film and a temperature sensor are provided on outer wall of the desorption cylinder. The piston cylinder above the desorption cylinder comprises two piston chambers, each of which is provided with the adsorption unit and in communication with the desorption chamber. The piston cylinder comprises a sample-gas inlet connected to the sampling unit and a gas-suction-pump orifice connected to the gas suction pump, each of which can communicate with both piston chambers. Each adsorption unit comprises an adsorption cylinder-like screen for holding adsorbents and a piston rod slidably mounted in the piston chamber. Each adsorption cylinder-like screen can simultaneously communicate with the sample-gas inlet and gas-suction-pump orifice.
    • 样品引入装置包括取样单元,气体抽吸泵,吸附单元,活塞缸和解吸筒,其包括解吸室,载气入口,分流/排气口和与解吸室连通的分析器喷嘴 。 在解吸筒的外壁上设置加热膜和温度传感器。 解吸筒上方的活塞筒包括两个活塞室,每个活塞室设有吸附单元并与解吸室连通。 活塞气缸包括连接到取样单元的样品气体入口和连接到气体抽吸泵的气体抽吸泵孔,每个气体吸入泵可与两个活塞室连通。 每个吸附单元包括用于保持吸附剂的吸附缸状筛网和可滑动地安装在活塞室中的活塞杆。 每个吸附圆筒状筛网可同时与样品气体入口和吸气泵孔口连通。