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Degassing device

A gas and bubble technology, applied in the general layout of liquid degassing, liquid degassing, rapid degassing, etc., can solve the problems of expensive, complicated operation, and expensive ultrasonic source.

Active Publication Date: 2019-07-19
FRAUNHOFER GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG EV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, degassing by ultrasound is very expensive and the operation is relatively complicated
Also, ultrasonic sources are much more expensive than traditional vacuum pumps

Method used

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Examples

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no. 1 example

[0188] A first embodiment is a device (100) having a pressure chamber (101) and a micropump (102) fluidly connected to the pressure chamber (101), wherein the pressure chamber (101) includes a gas delivery region (103) and a liquid delivery region (103) region (104), wherein the micropump (102) is configured to generate a pneumatic pressure within the gas delivery region (103), which is lower than the fluid pressure of the liquid (105) flowing through the liquid delivery region (104), and wherein A gas-permeable and liquid-tight separation element (106) separates the gas-transporting region (103) from the liquid-transporting region (104) at least in sections, wherein the micropump (102) is arranged on the pressure chamber (101).

[0189] According to a second embodiment with reference to the first embodiment, the micropump (102) can be mounted on the pressure chamber (101) by screw and / or clamp fixings.

[0190] According to a third embodiment with reference to the first or se...

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Abstract

The invention relates to a device (100) with a pressure chamber (101) and a micropump (102) which is fluidically connected to the pressure chamber (101). The pressure chamber (101) has a gas-conducting region (103) and a liquid-conducting region (104). The micropump (102) is designed to generate a pneumatic pressure which is lower than a fluid pressure of a liquid (105) flowing through the liquid-conducting region (104) within the gas conducting region (103). According to the invention, a gas-permeable and liquid-impermeable separating element (106) at least partly separates the gas-conductingregion (103) and the liquid-conducting region (104) from each other. According to the invention, the micropump (102) is arranged on the pressure chamber (101).

Description

technical field [0001] The invention relates to a device for degassing liquids having the features of claim 1 . Background technique [0002] Bubbles are one of the major problems in microfluidic systems. Bubbles can have different adverse effects: [0003] • Due to the elastic properties of compressible gases, the pressure signal may be damped such that eg the pressure no longer reaches the microvalve and no longer opens it. [0004] • The free surface of the air bubbles generates capillary forces which are a significant disturbance eg in microvalves, small gaps or capillaries. Here, the greater the capillary force, the smaller the geometry (Laplace's equation). [0005] • These capillary forces also have the effect that air bubbles accumulate in corners and dead spaces and cannot be eliminated by flushing. [0006] · When there is only gas and no liquid at the sensor membrane, the presence of gas bubbles can completely falsify the measurement results of liquid sensors....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D19/00F04B43/04F04B19/00
CPCB01D19/0005B01D19/0031B01D19/0036B01D19/0063F04B19/006F04B35/04F04B37/14F04B43/043F04B49/08F04B53/06F04B2205/01B01D19/0068B01D53/22B01D63/06B01D2053/221B01D2311/14B01D2311/2653B01D2313/243
Inventor 马丁·里希特阿克塞尔·威尔西蒙·斯托麦尔克里斯汀·瓦尔德
Owner FRAUNHOFER GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG EV
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