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Mixing device for liquid chromatography

一种混合装置、液相色谱的技术，应用在混合机、测量装置、流态混合器等方向，能够解决混合器效果不够等问题，达到充分径向混合的效果

Active Publication Date: 2013-10-30
DIONEX SOFTRON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the effect of a mixer so constructed is sometimes not sufficient

Method used

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  • Mixing device for liquid chromatography
  • Mixing device for liquid chromatography
  • Mixing device for liquid chromatography

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] figure 1 The shown radial mixing device 1 comprises a tubular mixing channel 3 which can be as figure 1 Said is constructed in a straight line. Of course, the mixing channel 3 can also be curved.

[0033] In the interior 5 of the mixing channel 3 there is a drainage element 7 which has a helical configuration. In the exemplary embodiment shown, the helical drainage element 7 has four full turns of 360°.

[0034] figure 2 The helical drainage element 7 is shown separately in a perspective view and is made of a strip-shaped thin planar element which has been twisted about its longitudinal axis by a corresponding angle of rotation, which In the exemplary embodiment shown it is 4×360°=1440°. The flat strip has spacer elements 11 on its long outer sides 9 . These spacing elements 11 can be as figure 2 The respective arrangements shown are at positions opposite each other on the outer sides 9 of the long sides. Of course, the spacer elements 11 can also be arranged ...

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Abstract

The invention relates to a mixing device for liquid chromatography for the radial mixing of at least two fluids, in particular for the mixing of at least two eluents in high-performance liquid chromatography, with a tubular mixing line (3), wherein a mixture from at least two fluids can be fed to one end of this line, with this mixture having radial inhomogeneities at least in its axial course, and with a helical flow-guiding element (7) arranged in the mixing line (3). According to the invention, spacing means are provided that ensure a predetermined spacing between the radially outer end side (9) of the helical wall of the flow-guiding element (7) turned toward the inner wall of the mixing line (3) and the inner wall of the tubular mixing line (3). In addition, the invention relates to a mixing unit with such a radial mixing device, with a longitudinal mixing device being connected downstream from this radial mixing device.

Description

technical field [0001] The invention relates to a mixing device for liquid chromatography for radially mixing at least two liquids, in particular for mixing at least two eluents in high performance liquid chromatography. Furthermore, the invention relates to a mixing device for liquid chromatography, in which such a radial mixing device is used, downstream of which a longitudinal mixing device is arranged for mixing at least two liquids in the axial direction of the flow process. Background technique [0002] In liquid chromatography, especially in high performance liquid chromatography (HPLC), it is usually required to mix at least two different eluents (Eluent) as uniformly as possible according to an ideal ratio. In particular, this mixing ratio can be varied over time. Usually, two separate liquid streams (respectively originating from one pump) are supplied to the T-Stück via two lines or capillaries when the two eluents are mixed. If possible, the two eluents should ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D15/16B01F5/06G01N30/34G01N30/36
CPCB01D15/16B01F5/0614G01N2030/347G01N30/34Y10T436/2575B01F25/4314
Inventor 约阿希姆·维切尔斯
Owner DIONEX SOFTRON