Miniature gas-phase chromatographic chamber

A gas chromatography, micro-miniature technology, applied in the field of gas chromatography, can solve the problems of large volume and weight, poor constant temperature effect, etc., to achieve the effect of reducing the volume of the cavity, reducing the volume, and solving the dead angle of the gas path

Inactive Publication Date: 2005-03-23
赵继印 +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to overcome the disadvantages of poor constant temperature effect, large volume and weight of the chromatographic chamber of the existing gas chromatograph analyzer, realize portability, and apply to online continuous analysis

Method used

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  • Miniature gas-phase chromatographic chamber

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Embodiment Construction

[0020] The chromatographic chamber of the gas chromatograph is composed of three parts: the sampling unit, the separation unit and the detection unit.

[0021] The thermostat block A9, fixed body 7, metal protection body 4, and heat dissipation cap 1 in the sampling unit are connected in sequence, and fixed on the chamber cover 33 of the chromatography chamber through the fixing bolt A5 and the fixing bolt B6, with the heat insulation layer A10 in between. The constant temperature block A9 is provided with a platinum resistance sensor hole A19; the carrier gas inlet 8 passes through the constant temperature block A9 and the fixed body 7, and communicates with the quartz capillary A3 placed in the center of the metal protection body 4; the silicone rubber pad 2 is fixed on the heat dissipation cap 1, and tightly connected with the upper end of the quartz capillary A3.

[0022] The chromatography chamber cavity cover 33 and the chromatography chamber shell 37 in the separation u...

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Abstract

The invention discloses a mini vapour-phase chromatography room belongs to chromatography field, the intention is conquering poor constant temperature effects, big bulk and weight of current vapour-phase chromatography analyzer chromatography room. The invention is composed by inputting sample unit, separating unit and detecting unit, the inputting sample unit and detecting unit are fixed on the two sides of the separating unit chromatography room cavity lid; the chromatography room cavity is columniform; the invention uses double gas route, single column and single detecting equipment structure; the mini fan conversing blowing to heat abstraction. The applied novel invention has good constant temperature effect, the whole bulk is only 1/13 of former chromatography room, the whole weight is only 1/11 of former chromatography room, the controlling temperature precision reaches +-0.1 deg.C, it is portable instrument, and can be used to on line continuous analysis, especially providing a effective method of insulating oil on line detecting for electric power system.

Description

technical field [0001] The invention belongs to the field of gas chromatography, relates to a chromatography chamber, which is a core part of a gas chromatography analyzer, and is closely related to a portable and on-line gas chromatography analyzer. Background technique [0002] At present, the chromatographic chamber of a general-purpose gas chromatographic analyzer adopts a cubic structure, which mainly provides a uniform and constant temperature or a program-changed temperature environment for the chromatographic column to ensure stable performance of the instrument and accuracy of analytical data. The chromatography chamber mainly includes a cavity, an insulating layer, a fan, a baffle, a heating wire, a chromatographic column and a temperature sensor. When the instrument is working, the current flows through the heating wire to heat the cavity, and at the same time, the motor drives the fan to rotate through the rotating shaft, so that the airflow blows from around the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/60G01N30/88
Inventor 赵继印阎战军阎伟林立峰
Owner 赵继印
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