Chip-scale gas-liquid separator and control system thereof

A liquid separator and control system technology, which is applied in laboratory utensils, material excitation analysis, chemical instruments and methods, etc., can solve the problems of difficult gas-liquid manipulation, unstable flow rate of compressible gas, etc. Easy to upgrade and the effect of shortening the distance

Inactive Publication Date: 2015-01-28
HUBEI UNIV FOR NATITIES
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is little research work on gas-liquid separation in microfluidic chips. The main reason is that it is difficult to manipulate gas-liquid under micro-volume conditions, and the compressibility of gas makes the flow rate of gas unstable.

Method used

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  • Chip-scale gas-liquid separator and control system thereof
  • Chip-scale gas-liquid separator and control system thereof
  • Chip-scale gas-liquid separator and control system thereof

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Embodiment Construction

[0065] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0066] figure 1 It is a schematic diagram of the control system based on the chip-level gas-liquid separator, figure 2 , image 3 , Figure 4 A schematic diagram of the structure of the chip-level gas-liquid separator and its components is shown. figure 2 It can be seen that the chip-level gas-liquid separator is made of PDMS 24 and transparent glass slide 22 using MEMS technology, and the upper and lower sides of the chip and gas-liquid separator are fixed with PMMA 24. 3 LEDs 25 are placed on the right for illumination when the CMOS / CCD image sensor 49 monitors the gas-liquid interval shape, and 2 gradient refractive index lenses 20 and filter are placed directly below the gas-liquid interval shape monitoring unit 35 of the chip-level gas-liquid separator. The light sheet 23 enables the CMOS / CCD image sensor 49 to clearly collect th...

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Abstract

The invention relates to a chip-scale gas-liquid separator and a control system thereof. The chip-scale gas-liquid separator comprises a chip-scale gas-liquid separator and assembly unit, a control interface circuit and a chip-scale gas-liquid separator control system based on FPGA+DSP (field programmable gate array and digital signal processor), wherein the chip-scale gas-liquid separator and assembly unit is used for micro-mixing, micro-reaction and gas-liquid separation of a liquid-liquid fluid system under the micro-volume condition; the interface circuit is connected between the chip-scale gas-liquid separator control system and the chip-scale gas-liquid separator and assembly unit; the chip-scale gas-liquid separator control system is used for generating various control signals required for effective separation of the chip-scale gas-liquid separator and monitoring a gas-liquid interval form in a micro-reaction channel in real time to achieve the best gas-liquid separation effect. The chip-scale gas-liquid separator and the control system thereof provided by the invention can be used for effective mixing and reaction of reaction liquid in a microfluidic chip-atomic fluorescence online combined system for trace element detection, gas-state product enrichment and gas-liquid effective separation.

Description

technical field [0001] The invention belongs to the fields of micro-electromechanical systems, micro-mixing and embedded systems, and relates to a chip-level gas-liquid separator and a control system thereof. Background technique [0002] The microfluidic chip developed on the basis of the microfabrication technology of microelectromechanical system (MEMS) has been widely used in the fields of biological analysis, food analysis, chemical analysis and environmental analysis because of its advantages of high integration, high efficiency, fast speed, and small quantity. It has become one of the research frontier hotspots in analytical science. As a core technology of Miniaturized Total Analysis Systems (uTAS), microfluidic chips have been successfully combined with various analytical methods (such as mass spectrometry, electrochemical detection and optical detection, etc.) An analytical test. [0003] In recent years, the research on online coupling technology for microfluidi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01L3/00G01N21/64
Inventor 廖红华方芳廖宇张应团吴长坤袁海林吴少尉
Owner HUBEI UNIV FOR NATITIES
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