KR102074928B1 - Boiler air exhauster - Google Patents

Abstract

The present invention relates to an exhaust device for a boiler, comprising an exhaust pipe having a locking jaw, and inserting the exhaust pipe into a flue formed with a packing groove on an inner circumferential surface thereof, and filling a gap between the flue pipe and the flue in the packing groove. By installing an airtight seal to seal and tightly fixing the band portion formed on the outer peripheral surface of the exhaust pipe and the lower end of the flue forming the inclined projection to be caught by the locking projection of the exhaust pipe, the over-insertion prevention jaw of the year is in close contact with the over-insertion jaw of the exhaust pipe The access depth of the flue is limited, but a plurality of inclined protrusions formed at predetermined intervals along the inner circumferential surface of the band part is caught by the catching jaw of the exhaust pipe, thereby preventing the flue from being forced out of the exhaust pipe by external force.
According to the present invention, when inserting the flue in the direction of the exhaust pipe, the over-insertion prevention jaw of the year is in close contact with the over-insertion jam of the exhaust pipe to limit the depth of entry of the year, the unskilled worker or skilled The operator can easily fasten the flue into the exhaust pipe, and the inclined protrusion of the band portion tightly fixed to the outer circumferential surface of the flue is firmly fixed to the catching jaw of the exhaust pipe, and the inclined protrusion is caught on the catching jaw when the year is forced to escape. As a result, the forced release of the flue is prevented, the flue and the shape of the exhaust pipe are not deformed by the band part, and the construction time is shortened by a simple construction method in which the inclined protrusion part of the band part is caught by the locking jaw.

Description

Boiler air exhauster

The present invention relates to an exhaust device, and more particularly, the over-insertion prevention jaw of the year to be in close contact with the over-insertion jam jaw of the exhaust pipe, the inclined projection portion of the band connecting the joint between the exhaust pipe and the lower end of the flue on the locking jaw The present invention relates to an exhaust device for a boiler, by preventing the flue from being forced out of the exhaust pipe.

In general, since the exhaust gas emitted from the boiler contains toxic substances, a flue pipe is connected to the exhaust pipe of the boiler so that the exhaust gas can be exhausted outdoors.

At this time, the exhaust pipe is formed to be relatively short in length, thereby extending the flue pipe in the exhaust pipe and discharging the exhaust gas to the outside through the flue pipe.

Patent document 1 relates to a connection structure of a conventional exhaust pipe and the flue pipe, referring to this, the exhaust pipe connected to discharge the exhaust gas in the boiler to the outside of the boiler in the shape of a hollow tube, and inserted into the exhaust pipe in the shape of a hollow tube In addition, the flue pipe which guides the exhaust gas discharged through the exhaust pipe to move to the outside, is formed close to the joint between the exhaust pipe and the flue pipe formed to surround the airtight band and the airtight band closing the gap, the airtight band is exhaust pipe It is composed of a clamp to be in close contact with the joint between the and the flue pipe.

At this time, the hermetic band is bent to correspond to the step height between the exhaust pipe and the flue pipe and is in close contact with the outer surface of the flue pipe and the flue pipe, and in that state is pressed into the hermetic band support of the clamp and the exhaust pipe and the flue pipe It is firmly adhered to.

 Then, the gap between the exhaust pipe and the flue pipe is tightly sealed by the hermetic band, thereby preventing the exhaust gas from leaking into the room through the gap between the exhaust pipe and the flue pipe.

However, Patent Literature 1 as described above, when the flue-pipe is forced to leave the flue pipe as it rides up the inner circumferential surface of the exhaust pipe as it is, the exhaust gas discharged above the exhaust pipe flows into the room as it is due to the departure of the flue pipe. In addition, when tightening the airtight band with a clamp, there is a possibility that the shape of the flue pipe may be deformed by the pressure input of the airtight band, and the gap between the flue pipe and the upper end of the exhaust pipe is opened due to the shape of the flue pipe. There is a risk that the exhaust gas flows into the furnace, accordingly, there is a problem that the reliability of the product is lowered.

KR 10-1537107 B1

The present invention is to solve the problems as described above, an object of the present invention is provided with an exhaust pipe having a locking jaw formed on the outer surface, the exhaust pipe is inserted into the flue forming a groove formed in the inner peripheral surface, The sealing groove is provided in the packing groove to seal the gap between the exhaust pipe and the flue, and the band pipe is formed on the outer circumferential surface of the exhaust pipe and the lower end of the flue so as to tightly fix the bevel projection formed on the locking projection of the exhaust pipe. The over-insertion prevention jaw of the year is in close contact with the locking jaw is limited in the depth of entry of the year, a plurality of inclined projections formed to be spaced apart by a predetermined interval along the inner circumferential surface of the band is caught on the locking jaw of the exhaust pipe, the flue It is to provide an exhaust device for a boiler that prevents forced escape from the exhaust pipe.

In order to achieve the object of the present invention as described above, the exhaust device for a boiler according to the present invention, a hollow shape to form a locking step formed in the inward direction along the outer surface, connected to the exhaust port of the boiler exhaust gas in the boiler An exhaust pipe for guiding the exhaust gas to the outside of the boiler; A hollow groove is formed to form a packing groove protruding in an annular shape along the inner circumferential surface, and a lower end portion protrudes in a direction opposite to the outer surface of the exhaust pipe, and allows the exhaust pipe to be inserted therein and is exhausted through the exhaust pipe. A flue for guiding gas to the outdoors; One side is tightly fixed along the outer circumferential surface between the exhaust pipe and the flue in an open ring shape, to cover the lower end of the flue formed protruding in a direction opposite to the outer surface of the exhaust pipe, spaced apart a predetermined interval along the inner circumferential surface And a band part which is formed to be bent in an inclined direction in the exhaust pipe direction and forms an inclined protrusion that is engaged with the locking jaw of the exhaust pipe.

In the exhaust device for a boiler according to the present invention, the exhaust pipe, a plurality of locking jaws are formed spaced apart a predetermined interval along the longitudinal direction of the outer surface, and between any one of the plurality of the locking jaws between the exhaust pipe and the flue It is characterized by adjusting the height of the flue inserted into the exhaust pipe by engaging the inclined protrusion of the band portion for connecting the joint.

In the exhaust device for boilers according to the present invention, the lower end of the flue, characterized in that the protruding formed in a flat narrow light structure or "b" shaped structure.

In the exhaust device for a boiler according to the present invention, the band portion is formed by a fastening member at both ends to form a close contact plate to be in close contact with each other, the distance between the close contact portion on any one surface of the close contact plate portion Spaced apart, it characterized in that the limiting jaw to further limit the tightening force of the band portion.

In the exhaust system for a boiler according to the present invention, the band portion, the cover portion to cover the outer surface of the lower end of the flue; A pressure band extending from an upper end of the cover part to pressurize an outer surface of the lower end of the flue; And a lower band extending from the lower end of the cover part and having an inclined protrusion formed on the locking jaw of the exhaust pipe along an inner circumferential surface thereof.

In the exhaust device for a boiler according to the present invention, the inclined protrusion is formed to be inclined at a predetermined angle toward the outer surface direction of the exhaust pipe, it characterized in that the engaging jaw.

In the exhaust device for a boiler according to the present invention, the inclined projection portion, at least one end of the extension projection is bent or at least bent inclined bent inclined toward the locking jaw direction of the exhaust pipe to be caught on the locking jaw further formed. It is characterized by one.

In the exhaust device for a boiler according to the present invention, the inclined protrusion portion is formed in the central portion of the inner circumferential surface protruding toward the outer surface of the exhaust pipe further characterized in that the auxiliary projection is formed on the locking step.

In the exhaust device for a boiler according to the present invention, the inclined protrusion portion, the diameter thereof is formed relatively smaller than the outer diameter of the exhaust pipe, it is characterized in that the locking jaw of the exhaust pipe.

In the exhaust device for a boiler according to the present invention, the exhaust pipe is formed to be inclined over-inserted jaw in the upper edge, the flue is formed to be inclined to correspond to the over-inserted jaw in the packing groove the over-insertion Characterized in that the over-insertion prevention jaw that is caught on the locking jaw further formed.

According to the present invention, when inserting the flue in the direction of the exhaust pipe, the over-insertion prevention jaw of the year is in close contact with the over-insertion jam of the exhaust pipe to limit the depth of entry of the year, the unskilled worker or skilled The operator can easily fasten the flue into the exhaust pipe, and the inclined protrusion of the band portion tightly fixed to the outer circumferential surface of the flue is firmly fixed to the catching jaw of the exhaust pipe so that the inclined protrusion catches the catching jaw when the year is forced to escape. In order to prevent the forced release of the flue, and to fix the band portion in close contact with the outer peripheral surface of the flue, so that the inclined projection portion of the band portion is caught on the locking jaw, there is no fear of deformation of the flue and exhaust pipe shape by the band portion, in particular When installing by the simple construction method to insert the flue into the exhaust pipe, the inclined protrusion of the band portion is caught on the locking jaw At the same time, the connection between the exhaust pipe and the flue is firmly maintained, which improves the reliability of the product.

1 is a perspective view showing an exhaust device for a boiler according to the present invention.
Figure 2 is an exploded perspective view of Figure 1 in accordance with the present invention.
3 is a side cross-sectional view of the exhaust device for a boiler according to the present invention.
Figure 4 is another embodiment of the band portion of the exhaust device for a boiler according to the present invention.

Hereinafter, with reference to the accompanying drawings an embodiment of the present invention will be described in more detail.

1 to 4, the exhaust pipe 100 has a hollow shape to form a locking projection 101 recessed inwardly along its outer surface, and is connected to an exhaust port of the boiler 10 to be in the boiler 10. Guide the exhaust gas to be discharged to the outside of the boiler (10).

The exhaust pipe 100 is tightly fixed to the upper surface of the boiler (10).

The diameter of the exhaust pipe 100 is formed relatively smaller than the diameter of the flue 200 is inserted into the flue (200).

The exhaust pipe 100 is pressed against the sealed packing 300 while rubbing with the sealed packing 300 coupled to the packing groove 201 of the flue 200.

The exhaust pipe 100 forms an inclined overinsertion jaw 102 on the upper edge.

The overinsertion catching jaw 102 allows the overinsertion prevention jaw 202 of the flue 200 to be caught, thereby preventing the flue 200 from entering the exhaust pipe 100 more than a predetermined depth.

The exhaust pipe 100 forms a plurality of locking jaws 101 spaced apart from each other along a longitudinal direction of the outer surface, and between the exhaust pipe 100 and the flue on any one of the plurality of locking jaws 101. The inclined protrusion 401 of the band unit 400 for connecting the joint is engaged, thereby adjusting the height of the flue 200 inserted into the exhaust pipe 100.

The flue 200 has a hollow shape to form a packing groove 201 protruding annularly along the inner circumferential surface, the lower end protruding toward the direction opposite to the outer surface of the exhaust pipe 100, the exhaust pipe 100 therein By allowing the insertion of) guides the exhaust gas discharged through the exhaust pipe 100 to be discharged to the outside.

The upper end of the flue 200 is fixedly installed to be exposed to the outside, and discharges the exhaust gas discharged through the exhaust pipe 100 to the outside.

The flue 200 allows the exhaust pipe 100 to be inserted into its internal space.

The diameter of the flue 200 is preferably formed to be relatively wider than the diameter of the exhaust pipe (100).

The packing groove 201 is coupled to the sealing packing 300 for sealing the gap between the exhaust pipe 100 and the flue 200.

The lower end of the flue 200 is preferably located on the same horizontal line as the locking projection 101 of the exhaust pipe (100).

The flue 200 is formed to be inclined to correspond to the over-insertion jaw 102 in the upper portion of the packing groove 201 to further form an over-insertion prevention jaw 202 that is caught on the over-insertion jam jaw (102).

The over-insertion prevention jaw 202 is caught by the over-insertion catching jaw 102 to prevent the lower end of the flue 200 from colliding with the upper surface of the boiler 10 and at the same time the sealed packing 300 is It blocks the reaching of the locking projection 101 of the exhaust pipe (100).

The flue 200 has a top cross-sectional diameter smaller than the bottom cross-sectional diameter based on the overinsertion prevention jaw 202.

The lower end of the flue 200 is formed to protrude in the upper and lower light structure or "b" shaped structure.

The lower end portion of the flue 200 is bent to be inwardly curved to have a curved structure.

The lower end of the flue 200 is preferably bent to have a curved structure by curing, forming or pressing method.

The lower end of the flue 200 is fastened to the pressure band 404 of the band 400 is in close contact with the outer surface of the exhaust pipe (100).

The outer diameter of the lower end of the flue 200 is formed to be relatively smaller than the diameter of the cover part 403 of the band part 400 and is wrapped in the cover part 403.

The sealing packing 300 is inserted into and coupled to the packing groove 201 of the flue 200 to seal a gap between the exhaust pipe 100 and the flue 200.

The sealed packing 300 is preferably made of a rubber material free of shape deformation.

The hermetic packing 300 is rubbed with an outer surface of the exhaust pipe 100 inserted into the flue 200, is pressed by an outer surface of the exhaust pipe 100, and is deformed to shape the exhaust pipe 100 and the flue 200. Seal the gap between the).

 The band part 400 is fixed in a ring shape having one side open along the outer circumferential surface between the exhaust pipe 100 and the flue 200, and protrudes in a direction opposite to the outer surface of the exhaust pipe 100. It covers the lower end and is spaced apart along a predetermined interval along the inner circumferential surface thereof, and is formed to be beveled obliquely in the direction of the exhaust pipe 100 to form an inclined protrusion 401 that is caught on the locking jaw 101 of the exhaust pipe 100. .

At least two inclined protrusions 401 are formed along the inner surface of the band part 400.

The inclined protrusion 401 is caught by the catching jaw 101 of the exhaust pipe 100 to block the flue 200 from being forcibly separated above the exhaust pipe 100.

The band part 400 is formed by a fastening member (B) at both ends thereof to form a close contact plate part 402 to be in close contact with each other, the contact plate part 402 on any one surface of the close contact plate part 402. By separating the distance between, to form a limiting jaw (402a) for limiting the tightening force of the band 400.

The thickness of the limiting jaw 402a preferably corresponds to the strength before the outer shape of the flue 200 and the exhaust pipe 100 is deformed by the tightening force of the band part 400.

The band unit 400 is a cover part 403 to cover the outer surface of the lower end of the flue 200 and formed by extending from the upper end of the cover part 403, the pressing band to press the outer surface of the lower end of the flue 200 to press 404 and a lower band 405 extending from the lower end of the cover part 403 and forming an inclined protrusion 401 to be engaged with the locking step 101 along the inner circumferential surface thereof.

The pressure band 404 is tightened in the outer surface direction of the flue 200 by the band unit 400, and presses the flue 200 in the exhaust pipe 100 in the outer surface direction to tightly fix.

The lower band 405 is tightened toward the outer surface of the exhaust pipe 100 by the band part 400 so that the inclined protrusion 401 enters the engaging jaw 101 of the exhaust pipe 100.

The inclined protrusion 401 is formed to be inclined at a predetermined angle toward the outer surface direction of the exhaust pipe 100 and is caught by the locking jaw 101.

The inclined protrusion 401 is bent or extended at least once or bent in an oblique manner toward the locking jaw 101 direction of the exhaust pipe 100 at the end of the extension engaging projection 401a is caught on the locking jaw 101 ) To form more.

The extension engaging protrusion 401a is bent to have a curved structure or a right angle structure by curing, forming, or pressing, and its shape may be variously changed.

The inclined protrusion part 401 is formed at the center of the inner circumferential surface so as to protrude toward the outer surface direction of the exhaust pipe 100 to further form an auxiliary protrusion part 401b that is caught by the locking jaw 101.

When the upper end of the inclined protrusion 401 is positioned on the same vertical line as the outer surface of the exhaust pipe 100, the auxiliary protrusion 401b is caught by the catching jaw 101 to prevent the flue 200 from being separated. .

The inclined protrusion 401 has a diameter smaller than that of the outer surface of the exhaust pipe 100 so as to be caught by the catching jaw 101 of the exhaust pipe 100.

The exhaust device for a boiler according to the present invention configured as described above is used as follows.

First, the flue 200 is inserted in the direction of the exhaust pipe 100 so as to surround the outer circumferential surface of the exhaust pipe 100 fixed to the upper surface of the boiler 10 so that the exhaust pipe 100 is positioned in the flue 200. do.

At this time, the sealing groove 300 is provided in the packing groove 201 of the flue 200, and in that state by inserting the flue 200 into the exhaust pipe 100, the exhaust pipe 100 The sealed packing 300 is frictionally deformed on the outer surface thereof.

Then, the sealed packing 300 is located between the exhaust pipe 100 and the flue 200 to close the gap between the exhaust pipe 100 and the flue 200.

Here, the exhaust gas flowing into the gap between the exhaust pipe 100 and the flue 200 is blocked by the hermetic packing 300 to close the gap between the exhaust pipe 100 and the flue 200. It is prevented from entering the room through.

At this time, the over-insertion prevention jaw 202 formed on the inner circumferential surface of the flue 200 enters along the outer circumferential surface of the exhaust pipe 100, and is caught by the over-insertion locking jaw 102 of the exhaust pipe 100, thereby causing the flue 200. ) Is blocked from entering more than a predetermined depth into the exhaust pipe (100).

In particular, the position where the over-insertion prevention jaw 202 of the flue 200 is caught by the over-insertion jam jaw 102 is such that the lower end of the flue 200 has an upper end of the locking projection 101 of the exhaust pipe 100. It is preferable to be proportional to the distance located on the same horizontal line as.

Here, the locking jaw 101 is formed in a plurality along the outer surface of the exhaust pipe 100, the flue 200 in accordance with the position where the over-insertion prevention jaw 202 is caught in the over-insertion locking jaw 102 ) May be positioned on the same horizontal line as any one of the plurality of locking projections 101.

Subsequently, the lower end of the flue 200 is positioned on the same horizontal line as the catching jaw 101 of the exhaust pipe 100 or relatively higher than the catching jaw 101, and the band portion in that state. Cover portion 403 of (400) is to surround the lower end of the flue 200 formed bent in the upper and lower light structure or "b" shaped structure.

Then, the cover part 403 surrounds the lower end of the year 200, and at the same time the pressure band 404 of the band 400 is located on the outer peripheral surface of the lower end of the year 200, the lower band 405 ) Is inclined projection portion 401 is located around the same horizontal line as the locking projection 101 of the exhaust pipe (100).

At this time, the fastening member B is fastened to the close contact plate part 402 of the band part 400 so that the close contact part 402 is in close contact with each other, thereby covering the cover part 403 of the band part 400, The pressing band 404 and the lower band 405 are tightened at the same time. Accordingly, the pressing band 404 presses the outer surface of the lower end of the flue 200 so that the inner circumferential surface of the flue 200 is formed on the outer circumferential surface of the exhaust pipe 100. While tightly fixed, the inclined protrusion 401 of the lower band 405 enters into the locking step 101 and is caught by the locking step 101.

In addition, the cover part 403 is tightened in the direction of the outer circumferential surface of the lower end of the flue 200 to cover and cover the lower end of the flue 200.

Here, when the flue 200 is lifted upward while the flue 200 is gripped, the inclined protrusion 401 of the band 400 coupled to the flue 200 is the exhaust pipe 100. It is caught by the locking step 101 of the), to prevent the year 200 is separated upward.

In this case, an extension protrusion 401a is formed at the end of the inclined protrusion 401, and the band portion 400 is caught by the catching jaw 101 by engaging the extension protrusion 401a with the catching jaw 101. ) Is firmly locked.

If the upper end of the inclined protrusion 401 of the band 400 is located on the same vertical line as the outer surface of the exhaust pipe 100, the auxiliary protrusion 401b of the inclined protrusion 401 is caught by the locking step ( 101 to prevent the flue 200 is separated from the exhaust pipe 100 above.

On the other hand, if you want to adjust the height of the year 200, the fastening member (B) of the band portion 400 is separated, so that the tightening of the band portion 400 is released, in that state 200 ) In the direction toward the exhaust pipe 100 or in a state in which the exhaust pipe 100 is lifted upward, so that the inclined protrusion 401 of the band part 400 is caught by the other locking step 101. By fastening the close contact plate portion 402 of the band portion 400 with the fastening member B, the band portion 400 is tightened so that the joint portion of the exhaust pipe 100 and the flue 200 is connected by the same method as described above. The connection is fixed.

As described above, the over-insertion prevention jaw 202 of the flue 200 is caught by the over-insertion catching jaw 102 of the exhaust pipe 100 to limit the depth of entry of the flue 200, but the exhaust pipe 100 and The inclined protrusion part 401 of the band part 400 which wraps and secures the joint portion of the flue 200 is fixed to the catching jaw 101 so that the structure of preventing the departure of the flue 200 is in the direction of the exhaust pipe 100. When the flue 200 is inserted into the flue 200, the overinsertion prevention jaw 202 of the flue 200 is caught by the overinsertion jaw 102 of the exhaust pipe 100, thereby limiting the depth of entry of the flue 200. An inexperienced worker or a skilled worker can easily fasten the flue 200 into the exhaust pipe 100 due to the limited access depth of 200, and also incline the band part 400 fixedly fixed to the outer circumferential surface of the flue 200. The protrusion 401 is firmly locked to the locking jaw 101 of the exhaust pipe 100, so that the oblique protrusion part 4 when the force 200 is forcibly released. 01 is caught by the locking jaw 101 to prevent forced departure of the year (200).

The exhaust device for a boiler according to the present invention described above is not limited to the above-described embodiment, and those skilled in the art to which the present invention pertains without departing from the gist of the present invention claimed in the following claims. The technical spirit is to the extent that various changes can be made.

10: boiler 100: exhaust pipe
101: jam jaw 102: over-insertion jam jaw
200: year 201: packing groove
202: over-insertion prevention jaw 300: sealed packing
400: band portion 401: inclined protrusion portion
401a: extension protrusion 401b: auxiliary protrusion
402: close contact 402a: limiting jaw
403: cover portion 404: pressure band
405: lower band B: fastening member

Claims (10)

An exhaust pipe is formed in a hollow shape to form a locking projection 101 recessed inwardly along its outer surface and is connected to an exhaust port of the boiler 10 to guide the exhaust gas in the boiler 10 to be discharged to the outside of the boiler 10. 100;
The packing groove 201 is formed in a hollow shape and protrudes in an annular shape along the inner circumferential surface, and a lower end portion protrudes in a direction opposite to the outer surface of the exhaust pipe 100, and allows the exhaust pipe 100 to be inserted therein. Flue 200 for guiding the exhaust gas discharged through the exhaust pipe 100 is discharged to the outside;
An airtight packing 300 inserted into the packing groove 201 of the flue 200 to seal a gap between the exhaust pipe 100 and the flue 200; And
One side is closed and fixed along the outer circumferential surface between the exhaust pipe 100 and the flue 200 in an open ring shape, and covers and covers the lower end of the flue protruding in a direction opposite to the outer surface of the exhaust pipe 100. A band portion 400 spaced apart from each other by a predetermined interval along the inner circumferential surface of the exhaust pipe 100 to be beveled obliquely in the direction of the exhaust pipe 100 to form an inclined protrusion 401 that is caught by the locking jaw 101 of the exhaust pipe 100;
Consisting of,
The band unit 400,
Formed by the fastening member (B) on both ends thereof to form a close contact portion 402 in close contact with each other,
Boiler, characterized in that further formed a limiting jaw (402a) for limiting the tightening force of the band portion 400 by spacing the distance between the close contact portion 402 on any one surface of the contact plate portion 402. Exhaust system. An exhaust pipe is formed in a hollow shape to form a locking projection 101 recessed inwardly along its outer surface and is connected to an exhaust port of the boiler 10 to guide the exhaust gas in the boiler 10 to be discharged to the outside of the boiler 10. 100;
The packing groove 201 is formed in a hollow shape and protrudes in an annular shape along the inner circumferential surface, and a lower end portion protrudes in a direction opposite to the outer surface of the exhaust pipe 100, and allows the exhaust pipe 100 to be inserted therein. Flue 200 for guiding the exhaust gas discharged through the exhaust pipe 100 is discharged to the outside;
An airtight packing 300 inserted into the packing groove 201 of the flue 200 to seal a gap between the exhaust pipe 100 and the flue 200; And
One side is fixed in close contact with the outer circumferential surface between the exhaust pipe 100 and the flue 200 in the shape of an open ring, wrapped around the lower end of the flue formed protruding in a direction opposite to the outer surface of the exhaust pipe 100 A band portion 400 spaced apart along a predetermined interval along the inner circumferential surface of the exhaust pipe 100 to be inclined in the direction of the exhaust pipe 100 to form an inclined protrusion 401 to be caught by the locking jaw 101 of the exhaust pipe 100;
Consisting of,
The band unit 400,
A cover part 403 covering and covering an outer surface of the lower end of the year 200;
A pressure band 404 extending from an upper end of the cover part 403 to press and press an outer surface of the lower end of the flue 200; And
A lower band 405 extending from a lower end of the cover part 403 and forming an inclined protrusion 401 which is engaged with the locking jaw 101 of the exhaust pipe 100 along an inner circumferential surface thereof;
Boiler exhaust device, characterized in that consisting of. The method of claim 2,
The lower end of the year 200,
Exhaust system for a boiler, characterized in that the protrusion formed by a narrow light structure or "b" shaped structure. The method of claim 2,
The inclined protrusion 401,
It is formed to be inclined at a predetermined angle toward the outer surface direction of the exhaust pipe 100, the exhaust device for a boiler, characterized in that caught on the locking jaw (101). An exhaust pipe is formed in a hollow shape to form a locking projection 101 recessed inwardly along its outer surface and is connected to an exhaust port of the boiler 10 to guide the exhaust gas in the boiler 10 to be discharged to the outside of the boiler 10. 100;
The packing groove 201 is formed in a hollow shape and protrudes in an annular shape along the inner circumferential surface, and a lower end portion protrudes in a direction opposite to the outer surface of the exhaust pipe 100, and allows the exhaust pipe 100 to be inserted therein. Flue 200 for guiding the exhaust gas discharged through the exhaust pipe 100 is discharged to the outside;
An airtight packing 300 inserted into the packing groove 201 of the flue 200 to seal a gap between the exhaust pipe 100 and the flue 200; And
One side is closed and fixed along the outer circumferential surface between the exhaust pipe 100 and the flue 200 in an open ring shape, and covers and covers the lower end of the flue protruding in a direction opposite to the outer surface of the exhaust pipe 100. A band portion 400 spaced apart from each other by a predetermined interval along the inner circumferential surface of the exhaust pipe 100 to be beveled obliquely in the direction of the exhaust pipe 100 to form an inclined protrusion 401 that is caught by the locking jaw 101 of the exhaust pipe 100;
Consisting of,
The inclined protrusion 401,
At least one extension bent portion 401a which is bent or extended at an angle toward the locking jaw 101 direction of the exhaust pipe 100 at an end thereof is bent and obliquely extended to be caught on the locking jaw 101. Boiler exhaust system. An exhaust pipe is formed in a hollow shape to form a locking projection 101 recessed inwardly along its outer surface and is connected to an exhaust port of the boiler 10 to guide the exhaust gas in the boiler 10 to be discharged to the outside of the boiler 10. 100;
The packing groove 201 is formed in a hollow shape and protrudes in an annular shape along the inner circumferential surface, and a lower end portion protrudes in a direction opposite to the outer surface of the exhaust pipe 100, and allows the exhaust pipe 100 to be inserted therein. Flue 200 for guiding the exhaust gas discharged through the exhaust pipe 100 is discharged to the outside;
An airtight packing 300 inserted into the packing groove 201 of the flue 200 to seal a gap between the exhaust pipe 100 and the flue 200; And
One side is fixed in close contact with the outer circumferential surface between the exhaust pipe 100 and the flue 200 in the shape of an open ring, wrapped around the lower end of the flue formed protruding in a direction opposite to the outer surface of the exhaust pipe 100 A band portion 400 spaced apart from each other by a predetermined interval along the inner circumferential surface of the exhaust pipe 100 to be beveled obliquely in the direction of the exhaust pipe 100 to form an inclined protrusion 401 that is caught by the locking jaw 101 of the exhaust pipe 100;
Consisting of,
The inclined protrusion 401,
The exhaust pipe 100 for the boiler, characterized in that further formed in the center of the inner peripheral surface protruding toward the outer surface direction of the exhaust pipe (100b) to be caught on the locking projection (101). An exhaust pipe is formed in a hollow shape to form a locking projection 101 recessed inwardly along its outer surface and is connected to an exhaust port of the boiler 10 to guide the exhaust gas in the boiler 10 to be discharged to the outside of the boiler 10. 100;
The packing groove 201 is formed in a hollow shape and protrudes in an annular shape along the inner circumferential surface, and a lower end portion protrudes in a direction opposite to the outer surface of the exhaust pipe 100, and allows the exhaust pipe 100 to be inserted therein. Flue 200 for guiding the exhaust gas discharged through the exhaust pipe 100 is discharged to the outside;
An airtight packing 300 inserted into the packing groove 201 of the flue 200 to seal a gap between the exhaust pipe 100 and the flue 200; And
One side is fixed in close contact with the outer circumferential surface between the exhaust pipe 100 and the flue 200 in the shape of an open ring, wrapped around the lower end of the flue formed protruding in a direction opposite to the outer surface of the exhaust pipe 100 A band portion 400 spaced apart along a predetermined interval along the inner circumferential surface of the exhaust pipe 100 to be inclined in the direction of the exhaust pipe 100 to form an inclined protrusion 401 to be caught by the locking jaw 101 of the exhaust pipe 100;
Consisting of,
The inclined protrusion 401,
Its diameter is relatively smaller than the outer diameter of the exhaust pipe 100, the exhaust device for a boiler, characterized in that the engaging projection 101 of the exhaust pipe (100). An exhaust pipe is formed in a hollow shape to form a locking projection 101 recessed inwardly along its outer surface and is connected to an exhaust port of the boiler 10 to guide the exhaust gas in the boiler 10 to be discharged to the outside of the boiler 10. 100;
The packing groove 201 is formed to protrude in an annular shape along the inner circumferential surface in a hollow shape, and a lower end portion protrudes in a direction opposite to the outer surface of the exhaust pipe 100, and allows the exhaust pipe 100 to be inserted therein. Flue 200 for guiding the exhaust gas discharged through the exhaust pipe 100 is discharged to the outside;
An airtight packing 300 inserted into the packing groove 201 of the flue 200 to seal a gap between the exhaust pipe 100 and the flue 200; And
One side is fixed in close contact with the outer circumferential surface between the exhaust pipe 100 and the flue 200 in the shape of an open ring, wrapped around the lower end of the flue formed protruding in a direction opposite to the outer surface of the exhaust pipe 100 A band portion 400 spaced apart from each other by a predetermined interval along the inner circumferential surface of the exhaust pipe 100 to be beveled obliquely in the direction of the exhaust pipe 100 to form an inclined protrusion 401 that is caught by the locking jaw 101 of the exhaust pipe 100;
Consisting of,
The exhaust pipe 100 forms an inclined overinsertion jaw 102 on the upper edge,
The flue 200 is formed to be inclined to correspond to the over-insertion jaw 102 on the packing groove 201 to further form an over-insertion prevention jaw 202 to be caught on the over-insertion jaw 102 Boiler exhaust system characterized in. delete delete

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