For SF 6the helium ionized gas phase chromatographic system that decomposition product is analyzed

For SF 6the helium ionized gas phase chromatographic system that decomposition product is analyzed

  • CN 104,155,402 B
  • Filed: 08/27/2014
  • Issued: 10/07/2015
  • Est. Priority Date: 08/27/2014
  • Status: Active Grant
First Claim
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1. one kind for SF 6the helium ionized gas phase chromatographic system that decomposition product is analyzed, is characterized in that:

  • the described helium ionized gas phase chromatographic system for the analysis of SF6 decomposition product comprises heartcut device and two helium ionization detector;

    Described heartcut device comprises four transfer valves, six chromatographic columns and seven carrier gas gas circuits, and four described transfer valves are two ten-way valves and two six-way valves;

    Described two helium ionization detectors comprise two cover helium ionization detector devices;

    The concrete circuit switched of described heartcut device is as follows;

    the second carrier gas is connected with the first ten-way valve (1), the second carrier gas sample carried in the second quantity tube (6) enters the first chromatographic column (8), first chromatographic column (8) is connected with the first six-way valve (2), selection index system through the first six-way valve (2) enters the second chromatographic column (12), sample flows out laggard second six-way valve (3) through the second chromatographic column (12), and the second six-way valve (3) flows out the PDD2 detecting device (15) of laggard second helium ionization detector device;

    First carrier gas is connected with the first ten-way valve (1), the first carrier gas sample carried in the first quantity tube (5) enters the 3rd chromatographic column (9), sample flows out laggard second six-way valve (3) from the 3rd chromatographic column (9), and the second six-way valve (3) flows out the PDD2 detecting device (15) of laggard second helium ionization detector device;

    5th carrier gas is connected with the second ten-way valve (4), the 5th carrier gas sample carried in the 3rd quantity tube (7) enters the 4th chromatographic column (10), sample is separated laggard 5th chromatographic column (11) through the 4th chromatographic column (10), flows out the PDD1 detecting device (14) of laggard first helium ionization detector device through the 5th chromatographic column (11);

    4th carrier gas is connected with the second ten-way valve (4), second ten-way valve (4) is connected with the 6th chromatographic column (13), sample flows out the 6th chromatographic column (13) and enters to select emptying solenoid valve (17), and sample is from the PDD1 detecting device (14) selecting emptying solenoid valve (17) to flow out laggard first helium ionization detector device;

    6th carrier gas and the 7th carrier gas are connected the PDD1 detecting device (14) of the first helium ionization detector device and the PDD2 detecting device (15) of the second helium ionization detector device respectively.

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