Parameter regulation means for on-line gas chromatographic analysis device

A gas chromatographic analysis and parameter adjustment technology, which is applied in the parameter adjustment field of the online gas chromatographic analysis device of the gas monitoring device in transformer oil, can solve problems such as differences, and achieve the effect of improving accuracy

Inactive Publication Date: 2009-06-10
SHANGHAI BAOSTEEL IND TECHNOLOGICAL SERVICE
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0019] The object of the present invention is to solve the problem that there is still a certain difference between the online measurement (periodic measurement or instant measurement) data and the offline (laboratory) analysis data after the above-mentioned online gas chromatographic analysis device is corrected by calibration gas calibration, and provides an online Method for Adjusting Parameters of Gas Chromatographic Analysis Device

Method used

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  • Parameter regulation means for on-line gas chromatographic analysis device
  • Parameter regulation means for on-line gas chromatographic analysis device
  • Parameter regulation means for on-line gas chromatographic analysis device

Examples

Experimental program
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Effect test

Embodiment

[0038] 3# main transformer monitoring device parameters after calibration gas calibration:

[0039] 1. Correction coefficient

[0040] CO = 0.28 H2＝1.31 CH4=0.33 C2H2=0.60 C2H4-1=1.13 C2H6-1=1.13 C2H4-2 = 0.38 C2H6-2=0.37

[0041] 2. Retention time (minutes)

[0042]

[0043] 3. Retention time width (minutes)

[0044]

[0045] 4. Locking time (minutes)

[0046] CH1 4.00～7.00 CH2 4.19～7.34

[0047] 5. Extend the distortion time (minutes)

[0048] CH1 2.74～4.15 CH2 2.96～3.95

[0049] 6. Standard gas concentration and alarm value setting

[0050] Component Attention value (ul / L) Alarm value (ul / L) Standard gas concentration (ul / L) TCG 700 1400 —— H2 400 800 197 CO 300 600 291 CH4 150 300 202 C2H4 200 400 296 C2H6 150 300 300 C2H2 0 2 51

[0051] 7. Measurement cycle setting

[0052] 1 time / week starting at 9:00 every Monda...

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Abstract

The invention relates to a method of adjusting online gas chromatography analysis device parameters of a gas monitoring device in transformer oil, comprising the steps: analyzing and comparing output waveform after demarcating, adjusting retention time; setting prolonged distortion time on a third spectrogram C2 / H2, wherein start stop time is wider than retention time width of the third spectrogram to acquire gas concentration; setting locking time namely appointing time quantum not as waveform processing object between the third and the fourth spectrogram; analyzing and comparing online and offline data, adjusting spectrogram of gas components and concentration content of the dissolved gas in the transformer oil to approach the offline data. Due to the technical settlement, the problems that difference between the online measurement data (measured periodically or measured instantly) and the offline analysis data (experiment) in the gas chromatography analysis device is present are solved.

Description

technical field [0001] The invention relates to a gas chromatographic analysis device, in particular to a method for adjusting parameters of an online gas chromatographic analysis device for a gas monitoring device in transformer oil. Background technique [0002] The monitoring device for gas in transformer oil is partly an online computer-controlled gas chromatographic analysis device for dissolved gas in oil. By measuring the composition and concentration of dissolved gas in transformer oil in operation, it is possible to judge potential potential in the transformer. Once the concentration exceeds the alarm value, an audible and visual alarm will be issued near the machine and in the central control room; by layering with the traditional oil gas analysis device, the internal fault diagnosis of the transformer can be further effectively carried out. In the gas chromatography analysis device, the chromatographic column (gas separation column) and the gas sensor are two key ...

Claims

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Application Information

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IPC IPC(8): G01N30/86
Inventor 李政勇张莹
Owner SHANGHAI BAOSTEEL IND TECHNOLOGICAL SERVICE
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