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An automatic ultrafiltration system and an ultrafiltration method of the system under constant transmembrane pressure

An ultrafiltration system and transmembrane pressure technology, applied in the field of ultrafiltration systems, can solve the problems of inability to automatically adjust transmembrane pressure and flow, low membrane permeability and sample yield, and inability to achieve ultrafiltration conditions. Easy to handle, improve ultrafiltration efficiency, and improve the effect of ultrafiltration efficiency

Active Publication Date: 2016-03-30
LISUI TECH SUZHOU
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Problems solved by technology

The current ultrafiltration system cannot automatically adjust the transmembrane pressure and flow, and cannot achieve the most reasonable ultrafiltration conditions. The membrane permeability and sample yield are low, and the ultrafiltration efficiency is low.

Method used

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  • An automatic ultrafiltration system and an ultrafiltration method of the system under constant transmembrane pressure

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Embodiment Construction

[0017] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.

[0018] Such as figure 1 As shown, an automatic ultrafiltration system includes a diaphragm pump 1, an ultrafiltration membrane bag 3 and a PLC controller 15, the diaphragm pump 1 is driven by a servo motor 2, and the inlet port of the diaphragm pump 1 is connected to a sample container 12. The filter membrane package 3 has three interfaces, which are respectively the liquid inlet 31, the liquid outlet 33 and the liquid return port 32. The outlet end of the diaphragm pump 1 and the liquid inlet 31 of the ultrafiltration membrane package 3 are connected by a pipeline. The first pressure sensor 4, the liquid return port 32 of the ultrafiltration mem...

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Abstract

The invention discloses an automatic ultrafiltration system which comprises a diaphragm pump, an ultrafiltration membrane module and a PLC (Programmable Logic Controller) controller. The ultrafiltration membrane module is provided with a liquid inlet, a liquid outlet and a liquid return port; a first pressure sensor is connected between the outlet end of the diaphragm pump and the liquid inlet of the ultrafiltration membrane module; the liquid return port of the ultrafiltration membrane module is connected with a second pressure sensor; the second pressure sensor is connected with a shutoff valve; the liquid outlet of the ultrafiltration membrane module is connected with a third pressure sensor; the first pressure sensor, the second pressure sensor, the third pressure sensor and the shutoff valve are respectively connected with the PLC controller. The invention also discloses a method for implementing ultrafiltration under a constant transmembrane pressure by utilizing the automatic ultrafiltration system. The ultrafiltration system implements continuous operation under the constant transmembrane pressure and at constant flow, obtains the most reasonable ultrafiltration conditions, implements the continuous ultrafiltration process and improves ultrafiltration efficiency. Compared with the ultrafiltration efficiency of an existing ultrafiltration system, the ultrafiltration efficiency of the automatic ultrafiltration system can be improved by 30 to 50 percent.

Description

technical field [0001] The invention relates to an ultrafiltration system, in particular to an automatic ultrafiltration system and an ultrafiltration method of the system under constant transmembrane pressure. Background technique [0002] Ultrafiltration is a membrane separation process that uses sieving as the separation principle and pressure as the driving force. The filtration accuracy is in the range of 0.005-0.01 μm, which can effectively remove particles, colloids, bacteria, heat sources and high-molecular organic substances in water. It can be widely used in the separation, concentration and purification of substances. The current ultrafiltration system cannot automatically adjust the transmembrane pressure and flow, and cannot achieve the most reasonable ultrafiltration conditions. The membrane permeability and sample yield are low, and the ultrafiltration efficiency is low. Contents of the invention [0003] In order to solve the above technical problems, the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D61/14B01D61/22
Inventor 周胜王勇徐慧欣卞鄂敏
Owner LISUI TECH SUZHOU
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