Flow control mechanism and the gas chromatograph with the flow control mechanism

Flow control mechanism and the gas chromatograph with the flow control mechanism

  • CN 103,163,255 B
  • Filed: 09/24/2012
  • Issued: 07/14/2017
  • Est. Priority Date: 12/13/2011
  • Status: Active Grant
First Claim
Patent Images

1. a kind of gas chromatograph, has:

  • Analytical column for separating sample;

    For detecting by the examination after the analysis post separationThe detector of material;

    Sample for sample to be imported to the analytical column imports stream;

    Imported for sample to be injected into the sampleThe sample injection unit of stream;

    And carrier gas is supplied to the carrier gas supply unit of the sample injection unit, a part for the carrier gasFor the sample injected by the sample injection unit to be transported into the analytical column, the remainder of the carrier gas is used as purified gasBody is discharged by purification gas stream to outside, and sample importing stream quilt is passed through for transporting a part for carrier gas for sampleImport the analytical column, for transport sample carrier gas remainder as separation gas by separating gas flow path to outsideDischarge, the gas chromatograph is characterised by,Carrier gas flux control is provided between the stream and carrier gas supply source that lead to the sample injection unit of the carrier gas supply unitPart processed, purification gas flow control unit is provided with leading to for the sample injection unit on the outside purification gas streamPart,In leading to provided with separation gas flow control unit on the outside separation gas flow path for the sample injection unit,The carrier gas flux control unit, the purification gas flow control component and the separation gas flow control unitIt is made up of respectively the part of an integration, following each several parts are made of one by the part of the integration:

    For the first connecting portion being connected with the stream that gas is inputted, the gas be the carrier gas, the purification gas andOne kind in the separation gas;

    Second connecting portion for connecting gas flow path, gas flow path is used to lead the gas of the stream inputted from the gasTo specified location;

    Connect the internal flow path between the first connecting portion and the second connecting portion;

    AndFlow control valve, the flow control valve controls to flow through described first by adjusting the flow path width of the internal flow pathThe flow of gas between connecting portion and the second connecting portion,Also there is sensor to connect stream, institute in the carrier gas flux control unit and the purification gas flow control componentThe one end for stating sensor connection stream is communicated with the internal flow path, and pressure sensor is connected into the internal flow path,The carrier gas flux control unit and the purification gas flow control component also integratedly keep the pressure sensor.

View all claims
    ×
    ×

    Thank you for your feedback

    ×
    ×