CN211486798U - Low-resistance pipeline filter - Google Patents

Abstract

The utility model discloses a low-resistance pipeline filter, which comprises a filter shell, a shell cover plate, a filter screen column, a sewage discharge pipeline and a sewage discharge butterfly valve, wherein the filter screen column is of a double-layer filtering structure, the first layer is a coarse filter screen, the second layer is a medium-efficiency filter screen, and the coarse filter screen is embedded in the medium-efficiency filter screen; the upper part of the filter shell is provided with a water inlet, the side surface of the filter shell is provided with a water outlet, and the water inlet and the water outlet are vertical to each other; the bottom of filter casing is provided with the casing apron, casing apron sub-unit connection has sewage pipes, sewage pipes's lower part with the blowdown butterfly valve links to each other, through regularly opening the blowdown butterfly valve, washes and filters the residue. This filter possesses double-deck filter screen post, and filter screen cylinder and the same direction of water inlet can blowdown on line and wash the filter screen, and a filter can have a plurality of delivery ports, supplies a plurality of bleeder to use, can reduce the use of elbow spare when the installation of return bend department, can reduce the pipeline resistance.

Description

Low-resistance pipeline filter

Technical Field

The utility model relates to a low resistance's pipeline filter.

Background

The pipe filter is a filtering device indispensable to a pipe system for conveying media, and is usually installed at the inlet end of a pump, a pressure reducing valve, a pressure relief valve or other equipment to remove impurities in the media, so as to avoid blockage and damage caused by impurities, rust, welding scraps and the like in a pipe, thereby avoiding maintenance cost and production loss and protecting normal use of the pump, the valve and the equipment. The Y-type filter is commonly used at present, impurities of a filter cylinder with a filter screen of a certain specification are blocked, the cleaned filtrate is discharged from an outlet of the filter, when the filter is required to be cleaned, the detachable filter cylinder is taken out and is installed again after treatment, and the use and the maintenance are convenient. However, the prior art has the problems of low filtering efficiency of the filter, long cleaning period, high failure rate, overlarge resistance of the pipeline filter and the like.

Disclosure of Invention

In order to solve the technical problem, an object of the present invention is to provide a low resistance pipe filter.

The utility model discloses a following technical scheme realizes:

a low-resistance pipeline filter comprises a filter shell, a shell cover plate, a filter screen column, a sewage discharge pipeline and a sewage discharge butterfly valve, wherein the filter screen column is arranged in the filter shell, the filter screen column is of a double-layer filtering structure, a first layer is a coarse filter screen, a second layer is a medium-efficiency filter screen, and the coarse filter screen is embedded in the medium-efficiency filter screen; the upper part of the filter shell is provided with a water inlet, the side surface of the filter shell is provided with a water outlet, and the water inlet and the water outlet are vertical to each other; the bottom of filter casing is provided with the casing apron, casing apron sub-unit connection has sewage pipes, sewage pipes's lower part with the blowdown butterfly valve links to each other, through regularly opening the blowdown butterfly valve, washes and filters the residue.

Preferably, a water inlet pipeline is arranged at the water inlet, and the size of the cylindrical surface of the coarse filter screen is consistent with that of the water inlet pipeline.

Preferably, the medium efficiency filter screen has a wave-corrugated surface.

Preferably, the waste pipe is arranged coaxially with the inlet pipe.

Preferably, the low resistance duct filter has at least two water outlets.

The utility model discloses following beneficial effect has: compared with the prior Y-shaped filter, the Y-shaped filter has the technical advantages that the Y-shaped filter has double-layer filter net columns (a coarse filter net and a medium filter net), the effective area of the filter net is large, the filter net is not easy to block, the cleaning period is long, and the failure rate is relatively low; the filter screen cylinder can blowdown on line and wash the filter screen with the same direction of water inlet, and a filter can have a plurality of delivery ports, supplies a plurality of bleeder to use, can reduce the use of elbow spare when the installation of return bend department, can reduce the pipeline resistance.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings needed for the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a front sectional view of the present invention.

Fig. 2 is a plan view of the present invention.

In the figure: 1. a filter housing; 2. coarse-effect filter screen; 3. a medium-efficiency filter screen; 4. a housing cover plate; 5. A blowdown line; 6. a blowdown butterfly valve.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to the attached drawings 1-2 of the specification, a low-resistance pipeline filter comprises a filter shell, a shell cover plate, a filter screen column, a sewage discharge pipeline and a sewage discharge butterfly valve, wherein the filter screen column is arranged in the filter shell, the filter screen column is of a double-layer filtering structure, the first layer is a coarse filter screen, the second layer is a medium-efficiency filter screen, and the coarse filter screen is embedded in the medium-efficiency filter screen; the upper part of the filter shell is provided with a water inlet, the side surface of the filter shell is provided with a water outlet, and the water inlet and the water outlet are mutually vertical, so that in the direction from the water inlet to the water outlet, water flow is firstly subjected to coarse filtration through a coarse filter screen and then subjected to fine filtration through a medium filter screen, and the medium filter screen has a wave wrinkled surface; the bottom of filter casing is provided with the casing apron, casing apron sub-unit connection has the sewage pipes, and the residue impurity that brings through gravity action rivers can deposit in the sewage pipes lower part, the lower part of sewage pipes with the blowdown butterfly valve links to each other, through regularly opening the blowdown butterfly valve, washes and filters the residue.

Furthermore, the pipeline filter is cylindrical, the size of the cylindrical surface of the coarse filter screen in the pipeline filter is consistent with that of the water inlet pipeline, the sewage discharge pipeline and the water inlet pipeline are coaxially arranged, the filter is provided with at least two water outlets, and the water outlets of the filter are circularly and symmetrically distributed by using the axis of the filter.

While the foregoing description shows and describes the preferred embodiments of the present invention, it is to be understood that the invention is not limited to the forms disclosed herein, but is not intended to be exhaustive or to exclude other embodiments and may be used in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.

Claims (5)

1. A low-resistance pipeline filter comprises a filter shell, a shell cover plate, a filter screen column, a sewage discharge pipeline and a sewage discharge butterfly valve, and is characterized in that the filter screen column is arranged in the filter shell, the filter screen column is of a double-layer filtering structure, a first layer is a coarse-effect filter screen, a second layer is a medium-effect filter screen, and the coarse-effect filter screen is embedded in the medium-effect filter screen; the upper part of the filter shell is provided with a water inlet, the side surface of the filter shell is provided with a water outlet, and the water inlet and the water outlet are vertical to each other; the bottom of filter casing is provided with the casing apron, casing apron sub-unit connection has sewage pipes, sewage pipes's lower part with the blowdown butterfly valve links to each other, through regularly opening the blowdown butterfly valve, washes and filters the residue.

2. The low resistance pipe filter of claim 1 wherein the water inlet is provided with a water inlet pipe, and the cylindrical surface of the coarse filter screen is the same size as the water inlet pipe.

3. The low-drag duct filter of claim 1 wherein the intermediate filter screen has a corrugated pleat face.

4. The low-drag duct filter of claim 2 wherein said drain duct is disposed coaxially with said inlet duct.

5. A low-resistance duct filter according to any of claims 1-4, wherein the low-resistance duct filter has at least two water outlets.

Images