KR101824023B1

KR101824023B1 - Filter for Removing Foreign Particles of Boilers

Info

Publication number: KR101824023B1
Application number: KR1020160024617A
Authority: KR
Inventors: 강진구; 정창욱
Original assignee: 린나이코리아 주식회사
Priority date: 2016-02-29
Filing date: 2016-02-29
Publication date: 2018-02-01
Also published as: KR20170101706A

Abstract

The present invention relates to a filter for removing foreign substances in a boiler installed inside a flow switch connected to a direct water pipe to filter out foreign substances contained in direct water. The filter structure is remarkably improved to more effectively remove foreign substances contained in direct water As well as to extend the service life to the maximum extent possible.
To this end, according to the present invention, there is provided a foreign matter removal filter for a boiler installed inside a flow switch (80) fixed to one end of a direct water pipe and supported by a filter plug (30) The mesh 20 is formed on the entire circumference of the flow switch 80 and an opening 12 is formed on the opposite side of the filter plug 30 to which the filter plug 30 is fitted. An auxiliary mesh (21) is formed in the flange (14) of the large-diameter portion (13) to allow direct water to pass therethrough and a vertical surface (15a) is formed on one side of the large- The inclined plane 81 in the form of a funnel is formed inside the flow switch 80 and the vertical plane 15a formed on the rim 15 is linearly connected to the inclined plane 81, And a channel (22) communicating with the mesh (21) is formed. The.

Description

FIELD OF THE INVENTION [0001] The present invention relates to a filter for removing foreign substances from a boiler,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a filter for removing foreign substances in a boiler installed inside a flow switch connected to a direct water pipe to filter out foreign substances contained in direct water. More specifically, And more particularly, to a filter for removing foreign substances in a boiler, which can effectively extend the service life of the boiler.

Generally, a boiler using gas and petroleum as a fuel heats the primary heat exchanger with the combustion heat of the burner so that the primary heat exchange is performed, and then circulates the heat to the main heating water.

And a second heat exchanger in which the external direct water and the heating water are selectively heat-exchanged, thereby obtaining hot water.

Therefore, in the heat exchanger, the primary heat exchanger and the secondary heat exchanger are installed separately in one boiler.

That is, the conventional heating pipe and the hot water pipe circuit are controlled by a three-way valve so that a part of the heating water heated from the primary heat exchanger is supplied for indoor heating or sent to the secondary heat exchanger for heat exchange to obtain hot water.

Fig. 1 is a front view showing a conventional filter. Fig. 2 is a vertical sectional view of a state in which a conventional filter is installed. In Fig. 1, an inlet hole 52, And a # 20 mesh 60 for filtering the foreign substances contained in the direct water when the direct water flowing through the inflow hole 52 passes is formed in the direction orthogonal to the inflow hole 52, And the filter plug 30 is opened to fit on the opposite side of the mesh 60.

Accordingly, when the filter 50 is installed in the flow switch 80 and the filter plug 30 is fixed to the opened portion of the filter 50, if the direct water flows in the direction of the arrow shown in FIG. 2, Is introduced into the filter 50 through the inflow hole 52 formed in the small diameter portion 51 of the filter 50 and supplied to the heat exchanger (not shown) in a state where the foreign matter is filtered by the mesh 60 .

(Prior art document)

(Patent Document 0001) Korean Registered Patent Publication No. 10-1191383 (Registered on October 10, 2012)

(Patent Document 0002) Registered Utility Model Registration No. 20-0207183 (Registered on May 10, 2000)

However, the conventional filter has the following problems.

First, since the size of the mesh formed at one end of the filter is larger than the size of the foreign matter contained in the direct water, the foreign matter can not be completely filtered by the mesh and flows into the inside of the boiler and accumulates in the combustion part and the channel part. And there was a claim from consumers due to noise generation, poor operation of the boiler such as leakage, and the like.

Secondly, since the meshes are formed in hemispherical shape at one end of the filter, the life of the filter is shortened because of a small cross-sectional area, so the filter has to be frequently replaced.

Third, since the foreign matter contained in the direct water flows into the inside of the filter and is filtered by the hemispherical mesh formed on one side, there is a deadly plug which is lost as a filter if one side of the mesh located inside the filter is clogged.

SUMMARY OF THE INVENTION The present invention has been made in order to solve such problems of the prior art, and it is an object of the present invention to provide a filter having a mesh of # 40 over the entire outer circumferential surface of a small- And the foreign matter is filtered on the entire outer peripheral surface of the small-diameter portion.

Another object of the present invention is to provide an auxiliary mesh of # 40 not only on the circumferential surface of the small diameter portion of the filter but also on the flange of the large diameter portion so as to maximize the area for filtering the foreign matter so that the life of the filter can be maximized .

According to an aspect of the present invention for achieving the above object, there is provided a foreign matter removing filter for a boiler installed inside a flow switch fixed to one end of a direct water pipe and supported by a filter plug, Wherein an opening portion is formed on the opposite side of the mesh forming the filter plug and an outer portion of the opening portion is formed with a large diameter portion which is in close contact with the inner pipe of the flow switch and an auxiliary mesh through which the direct water passes is formed in the flange of the large diameter portion A rim portion having a vertical surface is integrally formed at one side of the large diameter portion. An inclined surface in the form of a funnel is formed in the flow switch. A vertical surface formed on the rim portion is linearly connected to the inclined surface, Wherein the filter for removing foreign substances in the boiler / RTI >

The present invention has the following advantages over the conventional device.

First, the # 20 mesh smaller than the size of the foreign matter contained in the direct water is formed over the entire outer circumferential surface of the small diameter portion of the filter, so that the foreign matter can be completely filtered by the mesh, thereby preventing the foreign matter from flowing into the boiler interior Accordingly, the clogging phenomenon inside the boiler can be prevented beforehand, so that it is possible to fundamentally solve the problem of receiving a claim from consumers due to noise, leakage, and poor boiler operation.

Secondly, since the meshes are formed on the flange of the large diameter portion as well as the entire small diameter portion of the filter, the lifetime of the filter can be maximized by increasing the cross-sectional area of the mesh, thereby increasing the replacement period of the filter.

Third, the foreign matter contained in the direct water is filtered by the mesh formed on the entirety of the small diameter portion and the auxiliary mesh formed on the flange before the foreign matter contained in the direct water is introduced into the filter, so that the function of the filter is not lost even if a part of the mesh or the auxiliary mesh is clogged.
Fourthly, a rim portion having a vertical plane is formed to protrude on the large diameter portion, and the flow switch is provided with a slope surface to which a vertical plane is connected. Thus, the flow path can be secured by the rim portion. So that it can be filtered.

1 is a front view showing a conventional filter;
Fig. 2 is a longitudinal sectional view of a state in which a conventional filter is installed
3 is a perspective view showing the filter of the present invention.
4 is a front view showing the filter of the present invention
5 is a longitudinal sectional view in a state in which the filter of the present invention is installed;
6 is a longitudinal sectional view of Fig. 3

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings, which will be readily apparent to those skilled in the art to which the present invention pertains. The present invention may be embodied in many different forms and is not limited to the embodiments described herein. The drawings are schematic and illustrate that they are not drawn to scale. The relative dimensions and ratios of the parts in the figures are shown exaggerated or reduced in size for clarity and convenience in the figures, and any dimensions are merely illustrative and not restrictive. And to the same structure, element or component appearing in more than one drawing, the same reference numerals are used to denote similar features.

FIG. 3 is a perspective view of the filter of the present invention, FIG. 4 is a front view of the filter of the present invention, and FIG. 5 is a longitudinal sectional view of the filter of the present invention, A mesh 20 is formed over the entire outer circumferential surface and the openings 12 are integrally projected on the opposite side to which the filter plug 30 is fitted.

At this time, a filter plug insertion portion 50 is formed at one end of the filter 10 in which the filter plug 30 is inserted, as shown in FIG. 6, so that one end of the filter plug 30 is inserted into the filter plug insertion portion 50 The insertion groove 31 of the filter plug 30 is forcibly inserted into the filter plug insertion portion 50 formed in the filter 10 so that the filter 10 is prevented from moving inside the flow switch 80 have.
The large diameter portion 13 is formed on the outer surface of the opening 12 of the filter 10 so as to be in close contact with the inner channel of the flow switch 80 to maximize the filtering area of the foreign matter. And a rim portion 15 having a vertical surface 15a is integrally formed at one side of the large diameter portion 13 so as to extend in an integral manner Respectively.
When the filter 10 is assembled to the flow switch 80, the vertical surface 15a formed on the rim portion 15 is inclined to the inclined surface 81, And the flow path 22 communicating with the auxiliary mesh 21 is formed.
At this time, the hole sizes of the mesh 20 and the auxiliary mesh 21 formed on the outer circumferential surface of the small diameter portion 11 and the flange 14 of the large diameter portion 13, And is formed with a hole size of # 20 that is half the size.
On the other hand, it is more preferable that the hole size of the auxiliary mesh 21 is formed to be denser than the hole size of the mesh 20.

A plurality of ribs 40 are formed on the outer circumferential surface of the mesh 20 at predetermined intervals so as to improve strength.

Hereinafter, the operation of the present invention will be described.

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First, when the filter 10 of the present invention is assembled inside the flow switch 80, the vertical surface 15a of the rim portion 15 formed to extend from the large diameter portion 13 is attached to the inclined surface 81 of the flow switch 80 So that the flow path 22 can be secured by the rim portion 15 while maintaining a stable state.

In this state, when the filter plug 30 is inserted into the filter 10 mounted on the flow switch 80, the insertion groove 31 formed in the filter plug 30 is inserted into the filter plug insertion portion 50 of the filter 10 So that the filter 10 is not moved by the flow switch 80.

When the direct water flows into the flow switch 80 along the direction of the arrow in FIG. 5B in the state where the filter 10 is installed in the flow switch 80, foreign substances contained in the direct water flow into the inside of the filter, Unlike the conventional filter which has been removed by the filter 20, the filter 20 is filtered by the mesh 20 having a size of 20 holes formed on the entire outer circumferential surface of the small diameter portion 11 before being introduced into the filter 10, Is passed through the auxiliary mesh (21) formed in the flange (14) of the large diameter portion (13) and supplied through the flow path (22).

Since the cross-sectional area of the mesh 20 and the auxiliary mesh 21 for filtering the foreign substances contained in the direct water is much greater than that of the prior art, the service life of the filter 10 can be maximized.

Therefore, even if a part of the mesh 20 is clogged due to long-term use, foreign matter is filtered through the unsealed mesh 20 and the auxiliary mesh 21, and direct water supply becomes possible.

The direct water filtered by the mesh 20 and the auxiliary mesh 21 flows into the interior of the filter 10 and flows through the opening 12 and the flow passage 22 formed at one end of the filter 10, It is possible to minimize the resistance due to the movement of the direct water.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention may be embodied with various changes and modifications without departing from the scope of the invention. will be.

It is therefore to be understood that the embodiments described above are to be considered in all respects only as illustrative and not restrictive, the scope of the invention being described in the foregoing specification is defined by the appended claims, Ranges and equivalents thereof are to be construed as being included within the scope of the present invention.

10: Filter 11: Small neck
12: opening 13:
14: flange 15: limb
15a: vertical plane 20: mesh
21: auxiliary mesh 22:
40: rib

Claims

A filter for removing foreign matter in a boiler provided inside a flow switch (80) fixed to one end of a direct water pipe and supported by a filter plug (30) And a large diameter portion 13 is formed on the outer surface of the opening portion 12 so as to be in close contact with the internal conduit of the flow switch 80. [ And a flange 14 of the large diameter portion 13 is formed with an auxiliary mesh 21 through which water is passed and a rim portion 15 having a vertical surface 15a is extended to one side of the large diameter portion 13 And a vertical surface 15a formed in the rim portion 15 is linearly connected to the inclined surface 81 so as to be connected to the auxiliary mesh 21 And the flow path (22) Filter for vaginal removal.

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The method according to claim 1,
Wherein the size of the mesh (20) and the size of the auxiliary mesh (21) is # 20.

The method according to claim 1,
Wherein the auxiliary mesh (21) is formed more densely than the mesh (20).

The method according to claim 1,
And a plurality of ribs (40) are formed on the outer circumferential surface of the mesh (20) at predetermined intervals.

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The method according to claim 1,
Wherein a filter plug assembly 50 is formed in one end of the filter 10 and an insertion groove 31 is formed in the filter plug 30 to fit into the filter plug insertion part 50. [ Filter for removing foreign matters.