Filtering method

Abstract

The invention relates to the technical field of filtering devices for flowing outwards, in particular to a filtering method, which comprises the following steps of (1) carrying out coarse filtration:after oil recovery, fishing out larger impurities in oil; (2) installing a filtering bag: preparing a filtering device, wherein the filtering device comprises a hard filtering barrel, the filtering bag and a clip for clamping the edge of the filtering bag; a U-shaped groove, a rotary shaft, a blade located on the rotary shaft and a support driven by the blade are arranged on the hard filtering barrel; a rotary handle is arranged on the end part of the rotary shaft; placing the filtering bag into the hard filtering barrel; then outwards curling the edge of the filtering bag, enabling the flangeto fit to the edge part of the hard filtering barrel, and then rotating the clip to clamp the edge of the filtering bag; meanwhile, curling a periphery of the U-shaped opening, and enabling the curled edge to wrap the side wall of the U-shaped groove; (3) fine filtering: adding oil in the step (1) into the filtering bag, and starting to filter. According to the scheme, the oil filtering efficiency can be accelerated.

Description

technical field [0001] The invention relates to the technical field of outward flow filtering devices, in particular to a filtering method. Background technique [0002] The computer is a commonly used electronic product in daily life, and the cooling method of the computer case is also constantly improving and progressing; the existing technology has come out with a new method of cooling the computer case, that is, oil cooling; the principle of oil cooling is to convert the entire The motherboard, including the graphics card, is soaked in transformer oil. Compared with air cooling and water cooling, oil cooling can save almost all fans on the chassis. Transformer oil has high heat dissipation and is more insulating than air; it can also reduce noise. With the popularization of technology, the recovery and filtration of transformer oil has also become a problem that current manufacturers pay more attention to. [0003] Duplex filter is also called duplex switching filter. I...

AI Technical Summary

Problems solved by technology

[0006] The existing technology has the following technical problems: the filter bag is mainly fixed by the engagement of the convex eaves between the duplex filter shell and the edge of the stainless steel filter screen. The high pressure makes the occlusal part of the filter bag often break and small holes appear, and new filter bags need to be replaced frequently. This situation will not only cause great waste, but also cause hidden dangers in product quality, and also seriously affect the filtration efficiency.

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