A nanofiber membrane drainage capacity measuring device

By designing a device for measuring the drainage capacity of nanofiber membranes, and utilizing the principle of dual pressure difference and liquid level monitoring technology, the problem that existing methods cannot accurately measure hydrophobic nanofiber membranes has been solved, and reliable evaluation of the performance of various nanofiber membranes has been achieved.

CN224651332UActive Publication Date: 2026-08-18WUXI MICRO CONTROL MEDICAL TECH CO LTD
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Patent Information

Application Number
CN202521978664.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-15
Publication Date
2026-08-18
Estimated Expiration
2035-09-15

AI Technical Summary

Technical Problem

Existing methods for measuring the drainage capacity of nanofiber membranes cannot accurately measure hydrophobic nanofiber membranes, and lack quantitative indicators for hydrophilic nanofiber membranes, thus failing to meet the requirements for use in the biomedical field.

Method used

A device for measuring the drainage capacity of nanofiber membranes was designed. It adopts the principle of dual pressure difference, and a constant positive and negative pressure difference is formed by an upper water tank and a vacuum device. Combined with liquid level monitoring and weight transmitter, the water permeability of hydrophobic and hydrophilic nanofiber membranes can be measured.

Benefits of technology

This study enables accurate determination of the drainage capacity of hydrophobic and hydrophilic nanofiber membranes, providing a reliable basis for performance evaluation and improving the accuracy and reproducibility of measurements.

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Abstract

The utility model discloses a kind of nanofiber membrane drainage capacity measuring devices, including upper water tank, the upper water tank is used to store test water;The upper water tank is connected with vacuum device by test cavity;The test cavity is used to place nanofiber membrane to be detected;The upper water tank is connected with liquid level control instrument, the liquid level monitoring device is arranged in the upper water tank;The liquid level control instrument, the liquid level monitoring device, the vacuum device are electrically connected with control device;The liquid level control instrument, the liquid level monitoring device and the control device are used to keep constant pressure above nanofiber membrane to be detected;The vacuum device is used to keep constant pressure below nanofiber membrane to be detected, and collect water that permeates nanofiber membrane to be detected.The utility model not only can accurately determine the drainage capacity of hydrophobic nanofiber membrane, but also is suitable for hydrophilic nanofiber membrane, provides reliable basis for the performance evaluation of nanofiber membrane.
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