Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Mini type electroosmosis pump

An electroosmotic pump and miniature technology, applied in the direction of pumps, electrical components, electromechanical devices, etc., can solve the problems of inability to work continuously for a long time, regular replacement of porous stems, and pumps that cannot be used for a long time, achieving low cost and simple reagent requirements , fast response effect

Inactive Publication Date: 2003-04-16
XIAMEN UNIV
View PDF2 Cites 17 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the gas generated by the electrode is stored in the electrode chamber, the pump needs to be stopped regularly during work to discharge the gas generated by the electrode, so it cannot work continuously for a long time
The porous core column is fixed in the middle of the pump body with glue, and the porous core column cannot be replaced regularly when needed, so that the pump cannot be used for a long time and has a limited service life.
The microporous isolation device between the current carriers in the electrode chamber cannot completely isolate the pH change of the fluid in the electrode chamber caused by the electrolysis of the gas generated by the electrodes in the electrode chamber. Since the electroosmotic flow is very sensitive to the pH of the fluid, this will cause the pump to work unstable.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Mini type electroosmosis pump
  • Mini type electroosmosis pump

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0012] Such as figure 1 As shown, the present invention is provided with a pump body 1, the pump body can be a unit assembly type or a continuous integrated structure, a fluid channel is arranged in the pump body, and at least three positive and negative electrode chambers 2 are arranged in the fluid channel, and in the electrode chamber Filled with electrolyte solution, a porous core 3 is set between every two electrode chambers, the surface of the porous core is positively or negatively charged, and its thickness is 0.5-10 mm. Each electrode chamber is connected to the power supply E through a conductor 4 . The conductor 4 may be an electronic conductor, or a composite of an ion conductor and an electronic conductor. Anion / cation exchange resin membranes / belts can be used as ion conductors, and reversible electrodes can be used as electronic conductors, such as Ag / AgCl, Ag / Ag 2 O and other electrodes.

[0013] The number of electrode compartments is preferably an odd numbe...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Lengthaaaaaaaaaa
Cross-sectional areaaaaaaaaaaa
Thicknessaaaaaaaaaa
Login to View More

Abstract

At least three electrode chambers with positive and negative electrodes being alternated are set up in the flow channel in the pump body. The honeycomb core is set up between every two electrode-chambers. Each electrode-chamber through the electric conductor is connected to the electrical power. The electrolyte solution is filled into the electrode-chamber. The pump body can be in the structure of the assembled type, the concatenation or chip type. Flow channel can be tube type, the canal or the chip micro channel. The invention possesses the features of easy of assembly, fast response, low voltage driving, wide range of flux and long service life etc. The pump can be utilized as the fluid-driving pump in the injection system applying to the areas of chemical engineering, biomedicine and environmental monitoring.

Description

(1) Technical field [0001] The invention relates to a device utilizing electroosmotic flow, in particular to a miniature electroosmotic pump. (2) Background technology [0002] The flow injection system of the fluid-driven pump using the electroosmotic flow method is widely used in the fields of chemical engineering, biomedicine, and environmental monitoring. Micropumps mainly include thin-film micromechanical pumps, electro-hydraulic driven pumps, surface tension driven pumps, hot bubble driven pumps, and centrifugal force driven pumps. Among them, the micropumps that use electroosmosis as the driving force mainly represent the micropumps invented by Parce John Wallace ( USP 6012902), Zanzucchi et al. invented miniature electric power pumps (WO 9743629A, CN1193927A). This kind of micropump mainly uses high voltage to drive electroosmotic flow in the microchannel, and requires additional high-voltage power supply equipment, which cannot miniaturize the overall instrument. ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): F04B37/00H02K44/00
Inventor 田昭武乔兴忠林华水
Owner XIAMEN UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com