Permeability detection system and method for a manifold, a porous membrane comprising the same

A technology of porous membrane and detection system, applied in the field of manifold and permeability detection system of porous membrane, can solve the problems of poor accuracy, inconvenient operation and difficult implementation of horizontal permeability detection, and achieve the effect of direct detection.

Inactive Publication Date: 2019-04-12
SUZHOU BOERDA BIOLOGICAL TECH CO LTD
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Problems solved by technology

The permeability characterization of micro-nano-scale films also stays on the permeability through the plane, while the measurement of horizontal permeability has always had problems such as inconvenient detection, difficult implementation, and poor accuracy.

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  • Permeability detection system and method for a manifold, a porous membrane comprising the same
  • Permeability detection system and method for a manifold, a porous membrane comprising the same
  • Permeability detection system and method for a manifold, a porous membrane comprising the same

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Embodiment Construction

[0031]In order to make the object, technical solution and advantages of the present invention clearer, various embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. However, those of ordinary skill in the art can understand that, in each implementation manner of the present invention, many technical details are provided for readers to better understand the present application. However, even without these technical details and various changes and modifications based on the following implementation modes, the technical solution claimed in each claim of the present application can be realized.

[0032] Since the horizontal dimension of the porous film (generally millimeter or centimeter level) is much larger than its vertical thickness (generally micron or nanometer level), applying a certain fluid pressure and flow velocity on its surface is much faster than applying it on its side wall. much easier. Based on this,...

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Abstract

The invention relates to the technical field of detection, and discloses a manifold, a permeability detection system and a method of a porous film comprising the same. In the present invention, the manifold is used to guide the fluid through the porous film in the detection of the permeability of the porous film; the manifold includes an air inlet, an air outlet, a central groove and two side grooves; the air inlet communicates with the central groove, and the edge The groove is connected to the gas outlet; and the two side grooves are arranged parallel to the central groove and distributed on both sides of the central groove; the pressure sensor is connected between the syringe pump and the air inlet; the syringe pump is used to provide Fluid with adjustable flow rate; the pressure sensor is used to detect the pressure difference between the air inlet and the air outlet in the permeability detection of the porous film, and according to the measured value of the fluid flow rate and pressure difference of the syringe pump, Darcy's law is used to calculate the pressure difference to be tested Permeability of porous membranes. The invention can directly detect the horizontal permeability of the porous film and the like, and has broad application prospects.

Description

technical field [0001] The invention relates to the technical field of permeability detection, in particular to a manifold and a permeability detection system and method of a porous film containing the same. Background technique [0002] The horizontal permeability of a porous film is an important hydrodynamic property that determines its capillary wetting and fluidity properties. The fluid permeability of porous media is described by the famous Darcy's Law. Darcy's Law believes that the permeability reflects the resistance of porous materials to fluid flow. Permeability has three components in three dimensions. For a porous membrane, the permeability includes two plane permeability (in-plane permeability, also known as horizontal permeability) and through-plane permeability (through-plane permeability). The calculation formula of Darcy's law is as formula (1), [0003] [0004] Among them, Q is the volume flow rate, A is the cross-sectional area perpendicular to the f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D65/10B01D65/00
CPCB01D65/00B01D65/102B01D2313/105
Inventor 荣国光
Owner SUZHOU BOERDA BIOLOGICAL TECH CO LTD
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