-
公开(公告)号：US10317365B2
公开(公告)日：2019-06-11
申请号：US15578536
申请日：2016-08-09
Applicant: Nuctech Company Limited
Inventor： Wen He , Hua Peng , Yangtian Zhang , Yuntai Bao , Changzhuo Chen , Haichao Zhou
Abstract: The present disclosure discloses a corona discharge assembly, an ion mobility spectrometer and a corona discharge method. The corona discharge assembly includes at least one corona discharge unit, wherein, the corona discharge unit includes a pair of corona metal wires arranged in parallel, and pulses having the same amplitude but opposite polarities are applied to the corona metal wires arranged in parallel, respectively. The present disclosure can generate more reactive ions than corona needles or tips, facilitate improving sensitivity of the ion mobility spectrometer, and effectively prolong service life of a corona source to 3-10 years.
-
公开(公告)号：US10295498B2
公开(公告)日：2019-05-21
申请号：US15116753
申请日：2015-06-18
Applicant: Nuctech Company Limited
Inventor： Yuntai Bao , Yangtian Zhang , Jianhu Ma , Haichao Zhou , Wangyang Wu , Wen He , Zhongxia Zhang , Bin Xue
Abstract: Embodiments of the present invention provide an air dryer for an ion mobility spectrometer, comprising a heating element used to heat a thermal conduction device, thereby heating the desiccant. Embodiments of the present invention further provide a regeneration method, by which the operation mode of the ion mobility spectrometer may be switched, so that during a non-working time of the ion mobility spectrometer, the desiccant is heated and thereby regenerated. With the present invention, the desiccant is avoided from being regularly replaced, thereby improving the performance and increasing the service life of the dryer. Regeneration of the desiccant is performed by making full use of the non-working time of the ion mobility spectrometer without affecting normal operation of instrument.
-
公开(公告)号：US10234366B2
公开(公告)日：2019-03-19
申请号：US14982535
申请日：2015-12-29
Applicant: Nuctech Company Limited
Inventor： Hua Peng , Yi Xiao , Yuanjing Li , Jianhua Liu , Wangyang Wu , Haichao Zhou
Abstract: The present disclosure provides a rotatable sample introducing device for a trace detecting instrument including: a rotating rod, a sample introducing body and a rotating rod bracket, wherein the sample introducing body may be positioned inside the rotating rod bracket, the rotating rod passing through the rotating rod bracket and the sample introducing body may be fixed to the sample introducing body by a fastener, and the rotating rod may be rotatable. The rotatable sample introducing device for the trace detecting instrument provided by the disclosure has the following advantages in comparison with the prior art: simple structure, convenient operation, lower requirement for machine process, easy maintenance in later period and low cost.
-
公开(公告)号：US10058817B2
公开(公告)日：2018-08-28
申请号：US15067349
申请日：2016-03-11
Applicant: Nuctech Company Limited
Inventor： Haichao Zhou , Yangtian Zhang , Yuntai Bao , Wangyang Wu , Yi Xiao , Changzhuo Chen , Qifang Wang , Wen He , Haijun Yu
CPC classification number: B01D53/261 , B01D53/06 , B01D2257/80 , G01N27/622
Abstract: The present disclosure discloses a continuous operable gas purification device in an ion mobility spectrometer including a housing provided with a cylinder cavity; a dry gas supply unit; a rotating barrier arranged in a radial direction of the cylinder cavity to divide it into a baking cavity and a working cavity; and a rotating mechanism. The housing is provided with a dry gas inlet and a dry gas outlet, which are communicated with the baking cavity, and a sample gas inlet and a sample gas outlet, which are communicated with the working cavity. The dry gas supply unit is connected with the dry gas inlet for a dry gas supply to the dry gas inlet. The baking cavity is provided with a heating unit correspondingly. The rotating mechanism is provided at a central position of the cylinder cavity and connected with the rotating barrier for rotating it at intervals.
-
-
-
Search Results
4
records
(took 0.042 seconds)
