Automatic ultrafiltration system and method for implementing ultrafiltration under constant transmembrane pressure by utilizing same
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
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[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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