EA028267B1 - Pipeline filter - Google Patents

Abstract

The invention is related to pipeline systems. The technical result is a broader range of pipeline slant filters that can be mounted with the filtering chamber lid upwards and eliminate filtered sediment accumulation in the inlet connection pipe or in the inlet pipeline. The pipeline filter comprises a hollow body 1 having an inlet connection pipe 2, an outlet connection pipe 3, and a filtering chamber 4, its geometrical axis being disposed at an angle to the geometrical axis or the outlet connection pipe 3, a lid 5 of the filtering chamber 4, a filtering element 6 in the form of a shell, and a separation sleeve 7. The cavity of the body 1 has a projection 10 forming a round hole 11 on the geometric axis of the filtering chamber 4 and a radial hole 13 of the filtering chamber 4. The filtering chamber 4 houses a filtering element 6 having inside it the separation sleeve 7; their first ends 15, 16 are aligned relative to the body 1, and the second ends 18, 19 are aligned relative to the lid 5 mating them; the cavity 17 of the separation sleeve 7 is in communication, through the round hole 11, with the cavity 12 of the inlet connection pipe 2. The inner side wall 20 of the filtering chamber 4 is spaced from the outer surface of the filtering element 6 to form a surrounding it first annular cavity 21 that communicates, through the radial hole 13, with the cavity 14 of the outlet connection pipe 3. The inner side wall of the filtering element 6 is spaced from the outer surface 22 of the separation sleeve 7 to form a second annular cavity 23 disposed around the separation sleeve and isolated over the ends 15, 16, 18, 19 of the filtering element 6 and the separation sleeve 7. The separation sleeve 7 is provided with radial holes 24 located adjacent to its end 19 and spaced from its end 15.

Description

The invention relates to piping systems, and in particular to a pipeline filter designed for coarse filtration of a fluid, which is sequentially installed in a pipeline of a cold or hot water supply network, water heating, gas network, including a compressed air network for industrial purposes, in a pipeline that any other technological function and transporting liquid or gas.

State of the art

Known pipeline filter, which contains a hollow body having located on the same geometric axis from opposite sides of the input and output connecting pipes, as well as a filter chamber located at a sharp angle to the geometric axis of the output connecting pipe with a geometric axis, the cover of the filter chamber, and a filter element in the form of a shell (Technical Directory, third edition, Vesta Trading, February 2009, p. 269).

A protrusion is located in the cavity of the housing between the inlet and outlet connecting pipes, which forms a circular hole in the housing cavity on the geometric axis of the filter chamber into the cavity of the inlet connecting pipe and a radial hole of the filter chamber from its cavity into the cavity of the output connecting pipe.

Inside the filter chamber there is a filter element, which is centered by the first end relative to the housing with the message of its cavity through a round hole with the cavity of the inlet connecting pipe, and the second end relative to the filter cover of the filter chamber, the inner side wall of the filter chamber being located at a distance from the outer surface filter element for forming an annular cavity located around the filter element, communicating through a radial hole TIFA with the output cavity of the connecting pipe.

This well-known pipeline filter, which is also called an oblique filter and refers, as a rule, to mechanical cleaning filters (mud filters), is intended for cleaning insoluble particles in a liquid medium in a pipeline. The disadvantage of this filter is that it must be located downwards with the lid of the filter chamber. In this case, the filtered precipitate remains in the filter chamber and can easily be removed by removing the cover of the filter chamber.

At any other location, the filtered sediment remains in the pipeline, clogging it. The dimensions of the installation space do not always allow placing the pipeline filter of known design with the plug down. It is extremely difficult, and sometimes even impossible, to extract the filtered sediment from the pipeline. For example, when a known pipeline filter is positioned upward with the filter chamber lid up and horizontal with the geometrical axis of the inlet and outlet connecting pipes, the filtered sediment will be collected in the cavity of the inlet connecting pipe. When the known pipeline filter is positioned upwards with the filter chamber lid up and with the geometrical axis of the inlet and outlet connecting pipes vertically, the filtered sediment will fall down the pipe connected to the outlet connecting pipe and be collected in the pipe corner closest down.

SUMMARY OF THE INVENTION

The technical result of the invention is to expand the arsenal of means of oblique pipeline filters, which can be installed upside down by the lid of the filter chamber, while eliminating the accumulation of filtered sediment in the inlet connecting pipe or in the inlet pipe.

This technical result is achieved by a pipeline filter, which contains a hollow body having inlet and outlet connecting pipes located on the same geometric axis on opposite sides, as well as a filter chamber located at an acute angle to the geometric axis of the output connecting pipe on the geometric axis;

filter chamber cover; shell-shaped filter element; separation sleeve.

A protrusion is located in the cavity of the housing between the inlet and outlet connecting pipes, which forms a circular hole in the housing cavity on the geometric axis of the filter chamber into the cavity of the inlet connecting pipe and a radial hole of the filter chamber from its cavity into the cavity of the output connecting pipe.

A filter element is located inside the filter chamber, inside of which there is a separation sleeve, which are centered by the first ends relative to the housing with the separation of the separation sleeve cavity through a round hole with the cavity of the inlet connecting pipe, and by the second ends relative to the filter chamber cover conjugated with them.

The inner side wall of the filter chamber is located at a distance from the outer surface of the filter element to form located around the filter element

- 1 028267 of the first annular cavity communicating through a radial hole with the cavity of the outlet connecting pipe.

The inner side wall of the filter element is located at a distance from the outer surface of the separation sleeve to form a second annular cavity located around the ends of the separation sleeve and insulated at the ends of the filter element and the separation sleeve.

The separating sleeve is made with radial holes adjacent to its end, mating with the cover of the filter chamber, and at a distance from its end, mating with the hollow body, which ensure the communication of the cavity of the separating sleeve with the second annular cavity between the inner side wall of the filter element and the outer surface of the separating bushings.

In the best embodiment of the invention, the radial holes of the separation sleeve are made with a size of at least 2 mm in its transverse and in its longitudinal directions. It is preferable when the radial holes of the separation sleeve are elongated in its longitudinal direction and are evenly located on the side surface of the separation sleeve.

In the best embodiment of the invention, the separation sleeve on the portion of the outer surface adjacent to its first end is made with an annular protrusion mating with the inner surface of the filter element.

The implementation of the invention

The possibility of carrying out the invention is confirmed by a specific example of a pipeline filter, a longitudinal section of which is shown in the drawing.

The pipe filter includes a hollow body 1, having connecting nozzles located on the same geometric axis from opposite sides of the input 2 and output 3, and a filter chamber 4 located at an acute angle to the geometric axis of the output connecting pipe 3, the cover 5 of the filter chamber 4, a filter element 6 in the form of a shell, as well as a separation sleeve 7.

The inlet 2 and outlet 3 connecting pipes are made with sections 8 of internal thread for connection to the pipeline (not shown in the drawing; sections 8 of the internal thread may not be, for example, in the case of manufacturing the housing 1 from a polymer material or in other cases for mounting the pipeline using welding). The cover 5 is mounted on the filter chamber 4 along the thread 9.

A protrusion 10 is located in the cavity of the housing 1 between the inlet 2 and the outlet 3 of the connecting pipes, forming a circular hole 11 in the cavity of the housing 1 on the geometric axis of the filter chamber 4 into the cavity 12 of the inlet connecting pipe 2 and the radial hole 13 of the filter chamber 4 from its cavity into the cavity 14 outlet connecting pipe 3.

Inside the filter chamber 4 there is a filter element 6, inside of which there is a separation sleeve 7, which are centered by the first ends 15, 16 relative to the housing 1 with the cavity 17 of the separation sleeve 7 communicating through a round hole 11 with a cavity 12 of the inlet connecting pipe 2, and the second ends 18, 19 - relative to the associated cover of the filter chamber 4.

The inner side wall 20 of the filter chamber 4 is located at a distance from the outer surface of the filter element 6 to form a first annular cavity 21 located around the filter element, communicating through a radial hole 13 with a cavity 14 of the outlet connecting pipe 3.

The inner side wall of the filter element 6 is located at a distance from the outer surface 22 of the separation sleeve 7 to form located around the separation sleeve 7 and isolated at the ends 15, 16, 18, 19 of the filter element 6 and the separation sleeve 7 of the second annular cavity 23.

The separating sleeve 7 is made with radial holes 24 adjacent to its end 19, mating with the cover 5 of the filter chamber 4, and at a distance from its end 15, conjugated with the housing 1, which provide a communication cavity 17 of the separating sleeve 7 with the second annular cavity 23.

Radial holes 24 are made with a size of at least 2 mm in the transverse and longitudinal directions of the separation sleeve 7, have an elongated shape in its longitudinal direction and are evenly spaced around the circumference. In addition, the separating sleeve 7 on the portion of the outer surface 22 adjacent to the first end 15 is made with an annular protrusion 25, conjugated with the inner surface of the filter element 6. The separating sleeve 7 may be equipped with a pipe filter of suitable known design, including the one made as in the above known analogue.

The filtered medium enters the cavity 12 of the inlet connecting pipe 2 and then through the round hole 11 into the cavity 17 of the separation sleeve 7, passes through the radial holes 24 into the second annular cavity 23, penetrates through the permeable filter element 6 into the first annular cavity 21, and then leaves the filter chamber 4, exiting through its radial hole 13 in

- 2 028267 cavity 14 of the output connecting pipe 3.

The filtered precipitate remains in the second annular cavity 23, where it is retained, settling down, in the area of the location of the annular protrusion 25, where the separation sleeve 7 is solid. The presence of an annular protrusion 25 allows you to remove from the filter chamber 4 the separation sleeve 7 together with the filter element 6 and the filter cake that has accumulated between them, which greatly facilitates the cleaning of the pipeline filter.

The hollow body 1 with the filter chamber 4, as well as the cover 5 of the filter chamber 4 can be made of brass, stainless steel, cast iron or an acceptable polymeric material. The separation sleeve 7 may be made of brass, stainless steel, from an acceptable polymer material. Can be used filter elements 6, made of: from a pipe segment from a mesh of polymer (nylon, polyethylene) or mineral (fiberglass) fibers; from a piece of pipe from a mesh or in the form of a shell welded from a rectangular blank of a mesh from stainless steel wire; from a pipe segment or in the form of a shell welded from a rectangular billet, stainless steel with holes; from a blank of woven or non-woven fabric made of polymer or mineral fibers (polyester fiber, nylon, fiberglass) located between two tubular blanks of a mesh of polymer fibers (nylon, polyethylene); in the form of a bobbin wound from a polymer or mineral thread (nylon, fiberglass).

All parts of the pipeline filter, made in accordance with the present invention, are manufactured according to known technologies for the manufacture of parts, depending on the materials used in the design. The pipe filter in accordance with the present invention can be manufactured as a standalone product of pipe fittings, or as a component in a combined product, for example a crane filter, a crane filter reducer and the like.

The example embodiment of the invention is not exhaustive. Other embodiments of the invention are possible, corresponding to the scope of patent claims.

Claims (4)

CLAIM 1. A pipe filter containing a hollow body having inlet and outlet connecting pipes located on the same geometric axis on opposite sides, and a filter chamber located at an acute angle with the geometric axis of the output connecting pipe, a filter chamber cover, a filter element in the form shells, as well as a separation sleeve, while in the cavity of the housing between the inlet and outlet connecting pipes there is a protrusion forming in the cavity a round hole on the geometric axis of the filter chamber into the cavity of the inlet connecting pipe and a radial hole of the filter chamber from its cavity into the cavity of the outlet connecting pipe, there is a filter element inside the filter chamber, inside which there is a separation sleeve, which are centered by the first ends relative to the housing with the message of the separation cavity bushings through a round hole with a cavity of the inlet connecting pipe, and the second ends - relative of the filter chamber lid, which is associated with them, the inner side wall of the filter chamber being located at a distance from the outer surface of the filter element to form a first annular cavity located around the filter element communicating through a radial hole with the cavity of the outlet connecting pipe, the inner side wall of the filter element is located at a distance from the outer surface of the separation sleeve for the formation located around the separation in the cartridge and the second annular cavity insulated at the ends of the filter element and the separation sleeve, the separation sleeve being made with radial holes adjacent to its end mating with the filter chamber lid and at a distance from its end mating with the hollow body, which provide a message to the cavity separation sleeve with a second annular cavity between the inner side wall of the filter element and the outer surface of the separation sleeve. 2. The filter according to claim 1, characterized in that the radial holes of the separation sleeve are made with a size of at least 2 mm in its transverse and in its longitudinal directions. 3. The filter according to claim 2, characterized in that the radial holes of the separation sleeve are elongated in its longitudinal direction and are evenly located on the side surface of the separation sleeve. 4. The filter according to any one of claims 1 to 3, characterized in that the separating sleeve on the portion of the outer surface adjacent to its first end is made with an annular protrusion associated with the inner surface of the filter element.