When the device is used in gas composition analysis, it can not only play the role of storing gas sample, but also play a role in regulating the pressure of gas sample. The utility model mainly comprises a storage sample compression body (1) and an adjusting frame (5) which are made of a corrugated tube and an upper and a lower core. The adjusting screw (7) on the control adjusting frame causes the adjusting frame to move up and down so as to drive the sample compressed body to shrink and extend, and the volume inside the compressed body is changed, so as to achieve the function of storing and regulating the pressure of the air sample. The utility model can be used alone or as an accessory of a gas chromatograph.
【技术实现步骤摘要】
【技术保护点】
一种在气体成份分析中用的,既能贮存气体样品,又能调节气样压力范围的气体贮样调压装置,它由贮样压缩体(1)和调节架(5)构成,其特征是贮样压缩体(1)包括波纹管(4)和上套芯(2),下套芯(3),波纹管(4)的内径与上套芯(2)、下套芯(3)的园柱体的外径相配合,三者同轴心焊接或粘接而成。
【技术特征摘要】
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