Bi-directional two stage composite filter structure
A filter and secondary technology, applied in the fields of filtration and separation, filtration circuits, chemical instruments and methods, etc., can solve the problems of complex components, insufficient automation of the double lubricating oil filter, and membrane blockage, etc., and achieve significant economic benefits and Social benefits, significant filtering effect, and the effect of improving stability
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[0009] The specific implementation of the present invention will be further described below in conjunction with the accompanying drawings.
[0010] As shown in Figure 1 and Figure 2, the present invention includes a bottom plate 1, A two-position three-way solenoid valve 2, B two-position three-way solenoid valve 3, A two-stage combined filter 4, B two-stage combined filter 5, and a differential pressure sensor 6. Control unit 7. Among them, the A secondary combined filter 4 and the B secondary combined filter 5 adopt two self-designed oil filters in series and cast into an integrated structure. The accuracy of the two oil filters has been optimally matched under test verification, and the A secondary combined filter The filter 4 and the B-stage combined filter 5 are fixedly connected to the bottom plate 1. The a port of the A two-position three-way solenoid valve 2 is connected with the mechanically separated outlet, the b port and the c port are respectively connected to the inl...
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