Strainer device

Abstract

The invention relates to a strainer device comprising: a body having a structure of which the inside is empty; an inflow pipe having an inflow path, which communicates with the inside of the body, andformed to protrude from the left side of the body; a discharge pipe having a discharge path, which communicates with the inside of the body, and formed to protrude from the right side of the body; aprotrusion formed to protrude from an inner wall surface of the discharge path making contact with the body; a bypass pipe having a bypass path, which communicates with the inside of the body, and formed to protrude from a lower part of the body; and a valve member connected to the bypass pipe so as to open or close the bypass path, and further comprising crease protrusions, which are formed to protrude from an inner circumferential surface of the body and, when the valve member opens the bypass path such that a net part is cleaned, swirl a fluid having flowed in through the inflow path of theinflow pipe, thereby removing and cleaning out foreign material accumulated on an outer circumferential surface of the net part.

Description

technical field [0001] The present invention relates to a filter device, in particular to a filter device for cleaning the net of the filter core by causing the inflowing fluid to cause swirl flow or a large amount of eddy current to cause turbulent flow, thereby cleaning the net of the filter core more cleanly. Background technique [0002] Generally, a filter is installed in the piping where the fluid flows. The filter uses a cylindrical metal mesh installed inside to filter out foreign matter such as sand, scale, rust, metal waste, etc., to prevent intrusion into the various devices at the rear end. However, in order to remove the foreign matter accumulated inside the metal mesh, the conventional filter is separated from the piping and cleaned, so it is not easy for the operator who manages the piping. [0003] After publication of Korean Patent No. 10-1573682 in which the present applicant is the patentee, the above-mentioned problems have been eliminated. The existing...

AI Technical Summary

Problems solved by technology

[0004] However, as a result of the practical application of the above-mentioned prior art, there is a slight problem in cleanly cleaning the foreign matter accumulated on the outer peripheral surface of the metal mesh.

That is, in the prior art, the fluid is struck in a straight line on the same horizontal line as the metal mesh and then diverted, so there is a problem in effectively flushing foreign matter accumulated on the outer periphery of the metal mesh.

Images