Filter assembly

Abstract

The present invention relates to a filtration assembly, which comprises a shell having an inlet and an outlet, and a filter core located inside the shell, wherein the filter core has two ends, the inlet of the shell is proximate one of the ends of the filter core, the filter core comprises a center rod and a filter membrane located on the periphery of the center rod, the center rod is provided with a liquid permeable hole, the filter membrane is folded to form pleats, the pleats are provided with pleat valleys close to the side of the center rod, pleat peaks located on the periphery of the filter core and legs connecting the pleat valleys and the pleat peaks, and the pleat peaks extend in the whole height range of the filter core in a wavy mode. During filtration, the wavy extending pleatpeaks can weaken the axial flow of the feed fluid, so that the flow of the fluid is homogenized or homogenized, the flowing orderliness of the feed fluid is improved, turbulent flow or vortexes are reduced at the same flow rate, the generation of bubbles is greatly reduced, and the improvement of the filtration rate and the filtration efficiency is facilitated. Since the axial flow of the feed fluid is weakened, the utilization rate of the filter membrane on the valley side is also significantly improved.

Description

technical field [0001] The invention relates to the technical field of filtration, in particular to a filter assembly. Background technique [0002] After the filter membrane is folded to form pleats, it is installed between the center rod and the shell. The pleats extend along the axial direction to form a cylindrical folded filter element. The pleats have pleat valleys near the center rod side, pleat peaks near the shell side and connecting pleats Valleys and pleated peaks of the legs. The pleated filter element is installed in the filter assembly formed inside the housing to filter various fluids. However, when filtering, the flow of the feed fluid at any point at the pleat peak is usually chaotic and irregular, that is, the flow direction can point in any direction. Due to the chaotic and irregular flow of the feed fluid on the side of the pleat peak, local turbulence, eddy current and even foaming often appear near the pleat peak, which is not conducive to rapid and e...

AI Technical Summary

Problems solved by technology

Due to the chaotic and irregular flow of the feed fluid on the pleat peak side, local turbulence, eddy current and even foaming often appear near the pleat peak, which is not conducive to rapid and effective filtration.

[0003] In addition, due to the significant axial flow of the feed fluid on the outside of the filter element, the feed fluid can reach the end of the filter element near the inlet of the housing faster and replenish to the filter membrane on the side of the pleated valley near the inlet end, that is, near the inlet The filter membrane on the pleated valley side at one end can be fully utilized, while the utilization rate of the filter membrane on the pleated valley side away from the inlet is relatively low

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