KR102221820B1 - Isulated exhaust pipe - Google Patents

Abstract

According to the present invention, a flue assembly comprises: a first flue having a space formed therein, wherein one side and the other side thereof are opened; a second flue having a space formed therein, wherein one side and the other side thereof are opened; and an inner band enclosing the boundary of the first flue and the second flue. The first flue includes: a one-side flange formed on one side; an other-side flange formed on the other side; and an inner pipe connecting the one-side flange and the other-side flange. The second flue includes: a one-side flange formed on one side; an other-side flange formed on the other side; and an inner pipe connecting the one-side flange and the other-side flange. The inner band is arranged to enclose the one-side flange of the first flue and the other-side flange of the second flue. A first sealant is arranged on the one-side flange of the first flue and the other-side flange of the second flue. A second sealant is arranged in the inner band. Since a first wave and a second wave of shapes corresponding to the one-side flange of the first flue and the other-side flange of the second flue arranged to face each other are formed, when the first flue and the second flue are assembled, position alignment is easy and insulation performance is excellent to be structurally sturdy and excellent in leakage prevention.

Description

Flue assembly {Isulated exhaust pipe}

The present invention relates to a flue assembly.

Fuels such as petroleum, coal, and gas are used to combust power plants, incinerators, factory dwellings, and non-residential buildings, and the connection line leading to the chimney to discharge the exhaust gas generated at this time through the chimney is a flue. do.

The flue is usually made of a stainless steel plate or a plated steel plate, and since the exhaust gas of about 30-600° C. passes through, it is manufactured in the form of a double pipe having an insulating structure.

The components of the flue are formed as an outer tube with a certain distance (usually about 2.5 to 5 cm) to form an air layer on the inner tube and the outside of the inner tube, and the air layer between the inner tube and the outer tube acts as an insulating material. It is produced in a double-year method.

When the temperature of the exhaust gas is very high like a generator, a triple flue can be manufactured by adding an external pipe to the outside of the double flue.

Korean Patent Registration No. 10-1087200 discloses a flue assembly for exhaust gas emission flue. An outer cylinder, an insulating inner passage fixed by a plurality of spacers on the inner circumferential surfaces of both ends of the outer cylinder, and a plurality of elements at the inner center of the insulating inner cylinder In the flue assembly for exhausting exhaust gas comprising a foamed sound-absorbing pipe member fixedly installed in the center by a spacer, the foamed sound-absorbing pipe member is formed by compression molding an aluminum material having a plurality of pores. do. According to the disclosed technology, noise in the flue is absorbed and reduced by the heat insulating member through the sound-absorbing hole of the sound-absorbing inner cylinder, thereby minimizing the occurrence of noise in the flue.

Korean Patent Laid-Open Publication No. 10-2015-0098140 discloses that the flue assembly for exhaust gas discharge can stably fix the insulation material through the bent part formed in the heat insulation inner cylinder, and the sound absorption hole is formed through the protrusion through the upper part. Disclosed is a flue assembly for exhausting exhaust gas capable of preventing the outflow.

According to the disclosed technology, a cylindrical sound-absorbing inner cylinder having a plurality of upper and lower openings and a plurality of sound-absorbing holes formed on the outer circumferential surface, and the sound-absorbing inner cylinder are combined with a certain space to fill the heat insulating member, and a plurality of bent portions recessed inward are formed. The heat insulating inner passage for fixing the heat insulating member, a plurality of first spacers respectively coupled to the upper and lower portions to maintain the gap between the sound-absorbing inner cylinder and the heat insulating inner cylinder, the outer cylinder coupled to the outer surface of the insulating inner cylinder, and the gap between the insulating inner cylinder and the outer cylinder It characterized in that it includes a plurality of second spacers each coupled to the upper and lower portions to maintain.

In the conventional flue assembly as described above, since the flue is formed of an inner tube and an outer tube, it is difficult to maintain the airtightness of the part connecting the inner tube and the part connecting the outer tube with each other, so the insulation performance is poor. It has a disadvantage that heat loss occurs because the surface temperature of can be easily increased. In addition, by forming the part connecting the flue in a flat flange form and fastening the V-band with an airtight material applied to the outside of the flange, the filling amount of the airtight material on the contact surface is not large, and the flue expands and contracts due to extreme temperature changes. As the contact surface of the flat flange falls, there is a problem that exhaust gas or internal condensate easily leaks.

Korean Patent Registration No. 10-1087200 Korean Patent Publication No. 10-2015-0098140

An object of the present invention is to provide a flue assembly that is easy to assemble, has excellent insulation performance, is excellent in preventing leakage, and is structurally robust.

In the present invention, one side and the other side are opened, the first flue formed with a space therein; A second flue with one side and the other side open and a space formed therein; Including; an inner band surrounding the boundary between the first year and the second year,

The first flue includes one flange formed on one side; The other side flange formed on the other side; And an inner pipe connecting the one side flange and the other side flange, wherein the second flue includes: one side flange formed on one side; The other side flange formed on the other side; And an inner pipe connecting the one side flange and the other side flange, wherein the inner band is disposed to surround one side flange of the first flue and the other side flange of the second flue, and one side flange and a second flue of the first flue A first sealant is disposed on the other side flange of and a second sealant is disposed inside the inner band.

The first flue and the second flue are formed in a cylindrical shape, a first wave is formed in a radial direction on one flange of the first flue, a second wave is formed in a radial direction on the other flange of the second flue, The first wave and the second wave may be formed in a shape corresponding to each other.

The first wave and the second wave may be formed in a curved shape.

A first outer flue surrounding the outside of the first flue; A second outer flue surrounding the outside of the second flue; A first spacer coupled to the first flue and the first outer flue and radially spaced apart the first flue and the first outer flue; A second spacer coupled to the second flue and the second outer flue and radially spaced apart the second flue and the second outer flue; It may further include an outer band surrounding the outer side of the first outer year and the second outer year.

The first outer flue further includes a first insertion groove formed to be concave from an outer side in a radial direction to an inward direction, and the second outer flue further includes a second insertion groove formed to be concave from an outer side to an inward direction in the radial direction. And, one end of the outer band may be inserted into the first insertion groove, and the other end of the outer band may be inserted into the second insertion groove.

First, in the present invention, since the first wave and the second wave of the shape corresponding to each other are formed on one flange of the first flue and the other flange of the second flue arranged to face each other, the assembly of the first flue and the second flue It has the advantage of easy position alignment.

Second, according to the present invention, since one flange of the first flue and the other flange of the second flue are joined through waves, it is easy to assemble in a horizontal direction as well as a vertical direction.

Third, in the present invention, a first sealant is applied between one flange of the first flue and the other flange of the second flue, and a second sealant is applied outside and inside the inner band of one flange of the first flue and the other flange of the second flue. Since the sealant is filled, there is an advantage in that airtightness can be effectively implemented.

Fourth, the present invention can easily adhere to one flange of the first flue and the other flange of the second flue through a first sealant applied between one flange of the first flue and the other flange of the second flue. There is an advantage that can be effectively implemented.

Fifth, in the present invention, since the waves are arranged in at least one of a circumferential direction or a radial direction based on the axial center of the flues, there is an advantage in that alignment is easy.

1 is a front view showing a flue assembly according to a first embodiment of the present invention.
2 is a partially enlarged view of FIG. 1.
3 is a perspective view illustrating a coupling structure of the inner band shown in FIG. 2.
4 is a perspective view showing a coupling structure of the outer band shown in FIG. 1.
5 is a front view showing a flue assembly according to a second embodiment of the present invention.
6 is an enlarged cross-sectional view showing the coupling structure of the flanges shown in FIG. 5.
7 is a front view showing a flue assembly according to a third embodiment of the present invention.
8 is an enlarged cross-sectional view showing the coupling structure of the flanges shown in FIG. 7.
9 is a plan view of a first year according to a fourth embodiment of the present invention.
10 is a bottom view of a second flue according to a fourth embodiment of the present invention.
11 is a plan view of a flue according to a fifth embodiment of the present invention.

Advantages and features of the present invention, and a method of achieving them will become apparent with reference to the embodiments described below in detail together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in a variety of different forms, and only these embodiments make the disclosure of the present invention complete, and are common knowledge in the technical field to which the present invention pertains. It is provided to completely inform the scope of the invention to those who have, and the invention is only defined by the scope of the claims. The same reference numerals refer to the same components throughout the specification.

1 is a front view showing a flue assembly according to a first embodiment of the present invention, FIG. 2 is a partially enlarged view of FIG. 1, and FIG. 3 is a perspective view showing the coupling structure of the inner band shown in FIG. 4 is a perspective view showing a coupling structure of the outer band shown in FIG. 1.

The flue assembly according to this embodiment has a structure in which a plurality of flues are combined. The flue assembly may be disposed in a vertical direction or a horizontal direction. The flue assembly may have a form in which flues disposed in a horizontal direction and flues disposed in a vertical direction are assembled.

When the flue assembly is arranged in the horizontal direction, the condensed water inside may be accumulated in the lower side in the gravitational direction, and the flue assembly according to the present embodiment can prevent leakage of the internal condensed water through the connection part of the flues.

The flue assembly includes a first year 100 and a second year 200. The structure of the first year 100 and the second year 200 is the same. It is preferable that the first flue 100 and the second flue 200 are formed of a material having high corrosion resistance.

The flue assembly continuously arranges a plurality of years including the first year 100 and the second year 200.

The flue assembly includes a first year 100 and a second year 200 and an inner band 300 for closely contacting the boundary between the first year 100 and the second year 200.

In this embodiment, the first flue 100 and the second flue 200 are made of stainless steel such as STS304 or STS316.

Since the driving of the first flue 100 and the second flue 200 is the same, it will be described based on one. When it is necessary to classify each component of the first year 100 and the second year 200, they can be distinguished by prefixing them with "first" and "second".

In the first flue 100, one side flange 111 is formed on one side (upper side in this embodiment), the other side flange 112 is formed on the other side (lower side in this embodiment), and the one side flange 111 ) And an inner pipe 114 connecting the other flange 112.

In this embodiment, the inner pipe 114 may be formed in a cylindrical shape. Unlike the present embodiment, the inner pipe 114 may be formed in a square shape.

The one side flange 111 is disposed on one side of the inner pipe 114 and protrudes outward in the radial direction. When viewed from a top view, the one side flange 111 is formed in a ring shape.

The other flange 112 is disposed on the other side of the inner pipe 114 and protrudes outward in the radial direction. When viewed from a bottom view, the other flange 112 is formed in a ring shape.

In this embodiment, the width of one side flange 111 and the width of the other side flange 112 are the same. Unlike the present embodiment, one side flange 111 and the other side flange 112 may have different widths.

In this embodiment, the one side flange 111 and the other side flange 112 are formed in a complete ring shape. Unlike the present embodiment, at least one of the one side flange 111 and the other side flange 112 may have an arc shape.

The one side flange 111 and the other side flange 112 have a shape corresponding to each other.

The one side flange 111 and the other side flange 112 are manufactured integrally with the inner pipe 114. The one side flange 111 and the other side flange 112 may be formed by bending the inner pipe 114.

In the second flue 200, one flange 211 is formed on one side (upper side in this embodiment), the other flange 212 is formed on the other side (lower side in this embodiment), and the one side flange 211 ) And an inner pipe 214 connecting the other flange 212.

The one side flange 211 and the other side flange 212 are manufactured integrally with the inner pipe 214. The one side flange 211 and the other side flange 212 may be formed by bending the inner pipe 214.

In this embodiment, the first flue 100 is disposed on the lower side, and the second flue 200 is disposed on the upper side.

When the first year 100 and the second year 200 are combined, the other flange of the second year may be stacked on the upper side of one flange of the first year 100.

When the first year 100 and the second year 200 are combined, one side flange 111 of the first year 100 and the other side flange 212 of the second year 200 are combined.

In this embodiment, one side flange 111 of the first flue 100 and the other side flange 212 of the second flue 200 are formed in a wave shape.

The wave forms a curvature in the longitudinal direction of the flue 100.

One side flange 111 of the first flue 100 and the waves 115 and 215 of the other side flange 212 of the second flue 200 correspond to each other.

The wave of the one flange 111 is referred to as a first wave 115 and a second wave 215 of the other flange 212 is referred to. In this embodiment, the first wave 115 and the second wave 215 are formed in a curved shape when viewed from a side cross-section.

The first wave 115 includes peaks 115a and 115b and valleys 115c and 115d. In this embodiment, the first wave 115 includes two peaks 115a and 115b and two valleys 115c and 115d. When viewed from a top view, the mountains and valleys may be alternately arranged in the radial direction of the first flue 100.

Among the mountains, those close to the center are referred to as first mountains 115a, and those that are far from the center are referred to as second mountains 115b. Among the above valleys, those that are close to the center are referred to as first bones 115c, and those that are distant are referred to as second bones 115d.

In this embodiment, the centers of the flat cross-sections of the first peak 115a, the second peak 115b, the first valley 115c, and the second valley 115d coincide.

The radius of the first peak 115a is smaller than the radius of the second peak 115b at the center of the flat section. The radius of the first valley 115c is smaller than that of the second valley 115d at the center of the flat section.

That is, the radius increases in the order of the first peak 115a, the first valley 115c, the second peak 115b, and the second valley 115d based on the center of the flat section.

In this embodiment, the first peak 115a, the first valley 115c, the second peak 115b, and the second valley 115d are formed in the entire one side flange 111. Unlike the present embodiment, the first peak 115a, the first valley 115c, the second peak 115b, and the second valley 115d may be formed only in part of the one side flange 111.

The first, first, second, and second valleys, which are the same as those of the one flange 111, are also formed in the other flange 112 of the first year 100.

The other flange 212 of the second year 200 includes a first mountain 115a, a first trough 115c, a second mountain 115b, and a first mountain 215a corresponding to the second trough 115d. , The first valley (215c), the second mountain (215b) and the second valley (215d) are formed.

A first mountain, a first trough, a second mountain, and a second trough are also formed on one side flange 211 of the second year 200.

In this embodiment, the first mountain 115a of the first year 100 is located below the first mountain 215a of the second year 200, and thus the first mountain 215a of the second year 200 ) To be inserted and supported. The remaining mountains and valleys are supported in the same way.

The first bone 215c of the second year 200 is located above the first bone 115c of the first year 100 and is inserted into the first bone 115c of the first year 100 .

The one side flange 111 includes a first wave 115 forming a curvature in the longitudinal direction of the first flue 100 and a first wave 115 further protruding radially outward from the radial end of the first flue 100. Includes 1 extension 116.

The other side flange 212 includes a second wave 215 forming a curvature in the longitudinal direction of the second flue 200 and a second wave 215 protruding further radially outward from the radial end of the second wave 215. It includes 2 extension parts 216.

The second wave 215 is disposed above the first wave 115.

The second extension part 216 is disposed above the first extension part 216.

The first wave 115 and the second wave 215 may be combined. The first wave 115 and the second wave 215 are disposed to face each other in the longitudinal direction of the years.

The first extension part 216 and the second extension part 216 are disposed to face each other in the longitudinal direction of the years.

The first wave 115 and the second wave 215 may mutually engage in a direction orthogonal to the longitudinal direction of the years. In this embodiment, the first wave 115 and the second wave 215 mutually engage in the horizontal direction.

Since the first wave 115 and the second wave 215 correspond to each other, when assembling the first year 100 and the second year 200, the first year 100 and the second year Position alignment of the year 200 is easy.

That is, just by mounting the second year 200 on the first year 100, the second year 200 can be aligned in the correct position.

When the first flue 100 and the second flue 200 are not aligned in a line, resistance may be generated in the fluid flowing through the inner pipes 114 and 214.

The alignment of the first flue 100 and the second flue 200 by the matching of the waves 115 and 215 may minimize the resistance of the fluid.

In addition, when the first inner pipe 114 and the second inner pipe 214 are not aligned in a line and either side protrudes, foreign substances included in the gas may be stacked, and the stacked foreign substances cause corrosion. I can make it.

The flue assembly according to the present embodiment can minimize the stacking of such foreign substances through the matching of the waves 115 and 215.

Meanwhile, a first sealant 500 may be disposed between the one side flange 111 of the first flue 100 and the other side flange 212 of the second flue 200. The first sealant 500 may be filled between the waves 115 and 215 and the extension parts 116 and 216.

The first sealant 500 may be formed of a synthetic resin material. The first sealant 500 may be formed of a corrosion-resistant material. The first sealant 500 may be a material having elasticity.

The first sealant 500 may protrude toward the inner surfaces of the inner pipes 114 and 214. The first sealant 500 may protrude outside the extension parts 116 and 216.

The first inner pipe 114 and the second inner pipe 214 are arranged in a line. The first inner pipe 114 and the second inner pipe 214 may be spaced apart by a predetermined interval by the first sealant 500.

Since the first sealant 500 is a material having elasticity, even if a vibration or shock occurs in the first flue 100 or the second flue 200, the first sealant 500 can buffer it to some extent. have.

That is, in this embodiment, the first sealant 500 blocks direct contact between the first flue 100 and the second flue 200.

The first sealant 500 prevents water in the first inner pipe 114 and the second inner pipe 214 from leaking between the first inner pipe 114 and the second inner pipe 214. I can.

The inner band 300 is disposed to surround the flanges. The inner belt 300 is disposed to surround one side flange 211 and the other side flange 212.

At least a portion of the inner band 300 is disposed radially outside the one side flange 211 and the other side flange 212.

The inner band 300 includes a band insertion portion 310 into which the one side flange 211 and the other side flange 212 are inserted, and the band insertion portion 310 extends in the longitudinal direction of the inner pipe 114 The band extension parts 320, 330, and the band fastening parts 351 and 352 respectively disposed at one end and the other end of the band insertion part 310, and the band fastening parts 351 and 352 are fastened. It includes band fastening members 353 and 354 to be coupled.

In this embodiment, the band fastening members 353 and 354 are bolts and nuts. Unlike the present embodiment, various fastening members may be used.

The band insertion part 310 is formed with a concave insertion groove 315 so that the one side flange 211 and the other side flange 212 can be inserted. In this embodiment, the band insertion portion 310 is formed in a V-shape. The insertion groove 315 has a wider side into which the one side flange 211 and the other side flange 212 are inserted, and is formed to be narrower toward the outer side in the radial direction of the flue.

When viewed from the front cross-section, the band insertion portion 310 may be formed in a "<" or ">" shape.

The band insertion part 310 includes a first inclined part 311 disposed below the one side flange 111, a second inclined part 312 disposed above the other flange 212, and the first inclined It connects the part 311 and the second inclined part 312 and includes a connection part 313 disposed radially outward than the one side flange 111 and the other side flange 212.

When viewed from a top view, the band insertion portion 310 may be formed in a ring shape.

One end and the other end of the band insertion part 310 are separated, and band fastening parts 351 and 352 are disposed at the one end and the other end, respectively.

In this embodiment, the band fastening parts 351 and 352 are formed integrally with the band insertion part 310. The band insertion part 310 is bent radially outward to form the band fastening parts 351 and 352.

The one disposed at one end is referred to as a first band fastening part 351, and the one disposed at the other end is referred to as a second band fastening part 352.

The first band fastening part 351 and the second band fastening part 352 are disposed to face each other. The first band fastening part 351 and the second band fastening part 352 may be disposed to face outward in the radial direction of the flue.

Fastening holes 355 are formed in the first band fastening part 351 and the second band fastening part 352, respectively, and the first band fastening part ( 351 and the second band fastening part 352 may be in close contact.

It is preferable that the diameter of the inner band 300 is the same as the inner pipe 114 or slightly smaller than the inner pipe 114. Through the difference in diameter, the inner band 300 may be in close contact with the outer surface of the inner pipe 114.

The band extension parts 320 and 330 are integrally formed with the band insertion part 310.

The band-shaped plate is bent to fabricate a band insertion part 310, a band extension part 320, 330, and a band fastening part 351, 352 excluding the band fastening members 353 and 354.

The band extension parts 320 and 330 include a first band extension part 320 connected to the first inclined part 311 and a second band extension part 330 connected to the second inclined part 312. Include.

The first band extension part 320 and the second band extension part 330 may be in close contact with the outer surface of the inner pipe 114. When the first band extension part 320 and the second band extension part 330 are in close contact with the inner pipe 114, the insertion groove 315 may be sealed.

A second sealant 600 may be filled in the insertion groove 315. The second sealant 600 may be filled along the insertion groove 315. It is preferable that the second sealant 600 is filled with a volume greater than the volume of the insertion groove 315.

When the second sealant 600 is filled less than the volume of the insertion groove 315, a space may be formed therein, resulting in a defect.

It is preferable that a portion of the second sealant 600 protrudes out of the band extensions 320 and 330.

The second sealant 600 filled in the insertion groove 315 may be disposed to surround the entire flange of one side 111 of the first flue 100 and the other side flange 212 of the second flue 200.

The first sealant 500 and the second sealant 600 may be in contact with each other in the radial direction outside of the first flange 111 of the first flue 100 and the other flange 212 of the second flue 200. .

In this embodiment, the first sealant 500 and the second sealant 600 are formed of the same material. Unlike the present embodiment, the first sealant 500 and the second sealant 600 may be formed of different materials.

Meanwhile, the flue assembly according to the present embodiment includes a first outer flue 150 surrounding the outside of the first flue 100, a second outer flue 250 surrounding the outside of the second flue 200, and , A first spacer 160 coupled to the first flue 100 and the first outer flue 150 and radially spaced apart the first flue 100 and the first outer flue 150, and the A second spacer 260 coupled to the second year 200 and the second outer year 250 and radially spaced apart the second year 200 and the second outer year 250, and the first An outer band 400 surrounding the outer side of the outer year 150 and the second outer year 250 may be further included.

The first outer year 150 and the second outer year 250 are formed identically. The first outer flue 150 and the second outer flue 250 are formed in a cylindrical shape and have the same diameter.

The diameter of the first outer flue 150 is larger than the diameter of the first flue 100, and the diameter of the second outer flue 250 is greater than the diameter of the second flue 200.

The lengths of the first outer year 150 and the second outer year 250 may be formed to be shorter than that of the first year 100 and the second year 200.

That is, one end and the other end of the first outer flue 150 may be disposed within the length of the first flue 100. One end and the other end of the second outer flue 250 may be disposed within the length of the second flue 200.

The outer band 400 may be formed in a ring shape. The outer band 400 may be in close contact with outer surfaces of the first outer flue 150 and the second outer flue 250.

The outer band 400 may seal the inside of the first outer flue 150 and the second outer flue 250.

The outer band 400 has one end 401 (the lower end in this embodiment) in close contact with the first outer year 150, and the other end 402 (the upper end in this embodiment) in close contact with the second outer year 250 . The one end 401 is the longitudinal direction of the flues 100 and 200.

The one end 401 and the other end 402 are bent radially inward.

The first outer flue 150 has a first insertion groove 151 formed concave in a radially outward to inward direction. The insertion groove 151 may be formed in a ring shape along an outer surface of the first outer flue 150.

One end 401 of the outer band 400 is inserted into the first insertion groove 151.

The second outer flue 250 has a second insertion groove 251 formed concave in the radially outer to inner direction. The second insertion groove 251 may be formed in a ring shape along the outer surface of the second outer flue 250.

The other end 402 of the outer band 400 is inserted into the second insertion groove 251.

One end and the other end in the circumferential direction of the outer band 400 are formed with band fastening portions 403 and 404 that are bent radially outward. The band fastening parts 403 and 404 are disposed to face each other, and may be fastened and coupled through the band fastening members 405 and 406.

The first spacer 160 separates the first flue 100 and the first outer flue 150 from each other. The first spacer 160 may minimize the heat of the first flue 100 from being conducted to the first outer flue 150.

The second spacer 260 also performs the same structure and function.

The first spacer 160 and the second spacer 260 are arranged to be vertically symmetrical.

A plurality of first spacers 160 may be provided. The plurality of first spacers 160 may be disposed radially with respect to the central axis of the first flue 100.

A plurality of second spacers 260 may also be provided. The plurality of second spacers 260 may be disposed radially with respect to the central axis of the second flue 200.

The first spacer 160 is disposed below the first one side flange 111, and the second spacer 260 is disposed above the second other side flange 212.

The first spacer 160 includes a first connecting portion 161 coupled to the first flue 100 and a second connecting portion 162 fixed to the first outer flue 150.

The first connection part 161 and the second connection part 162 may be orthogonally bent.

The first connection part 161 may be disposed between the first band extension part 320 and the first year 100. When the inner band 300 is fastened, the first band extension part 320 is in close contact with the first connection part 161, and airtightness performance may be further improved.

In particular, since the second sealant 600 may be filled between the first band extension part 320 and the first connection part 161, the airtight performance may be further improved.

The second connection part 162 may be coupled to one end 152 of the first outer flue 150. The second connection part 162 may be disposed above the first insertion groove 151.

The second spacer 260 includes a first connection part 261 coupled to the second flue 200 and a second connection part 262 fixed to the second outer flue 250.

The first connection portion 261 and the second connection portion 262 may be orthogonally bent.

The first connection part 261 may be disposed between the second band extension part 330 and the second flue 200. When the inner band 300 is fastened, the second band extension part 330 is in close contact with the first connection part 261, and airtightness performance may be further improved.

In particular, since the second sealant 600 may be filled between the second band extension part 330 and the first connection part 261, the airtightness performance may be further improved.

The second connection part 262 may be coupled to one end 252 of the second outer flue 250. The second connection part 262 may be disposed below the second insertion groove 251.

The inner band 300 may be disposed between the second connection portion 162 of the first spacer 160 and the second connection portion 262 of the second spacer 260.

The radially protruding length of the second connecting portion 162 of the first spacer 160 and the second connecting portion 262 of the second spacer 260 may be equal to or longer than that of the inner band 300. have.

The length of the outer band 400 in the vertical direction (longitudinal direction of the years) is longer than the distance between the second connection portion 162 of the first spacer 160 and the second connection portion 262 of the second spacer 260 Can be formed.

The outer band 400 is disposed to simultaneously surround the second connection portion 162 of the first spacer 160, the second connection portion 262 of the second spacer 260, and the inner band 300.

Hereinafter, since the second spacer 260 has a symmetrical structure with the first spacer 160, a detailed description is omitted.

Meanwhile, a coating layer including a ceramic component, vanadium, and titania may be additionally provided inside the inner pipes 114 and 214.

Specifically, the ceramic component can form a ceramic form through a series of processes including alumina, silicon carbide, cordierite (MgO. It may be kaolin (kaolin group, Al2O3·2SiO2·2H2O), silica (SiO2), diatomaceous earth, or a combination thereof.

Vanadium is a silver gray transition metal having an atomic number of 23, and is added in a small amount to the composition to increase heat resistance and strength of the flue pipe. However, if too much is added, micro-cracks of the coating layer may occur during the coating process.

Titania is a titanium oxide and is known to exist in the form of amorphous, anatase, brookite, and rutile in nature. In one embodiment, the titania may be amorphous, anatase, brookite, rutile, or a combination thereof, and preferably may have an anatase phase as the most widely used form. .

In the composition, the metal component added in addition to the ceramic component may be a combination of vanadium and titania. Other metal components, such as tungsten, phosphorus, cobalt, etc., which can be added as a coating component inside the flue pipe, cause microcracks in the formation of the ceramic coating layer and interfere with the formation of the coating layer. The heat resistance is reduced compared to that Therefore, in one embodiment, the catalyst composition may not contain tungsten, phosphorus or cobalt.

The vanadium and titania mixture may include 0.1 to 3 parts by weight, preferably 0.2 to 2.5 parts by weight, respectively, based on 5 parts by weight of the ceramic component. When the content of the combination of vanadium and titania exceeds the above range, sufficient stability may not be maintained under high temperature, resulting in warping and cracking.

The component ratio of each of the vanadium and titania may be 1 to 5:1 to 3 in a weight ratio, and preferably may have a weight ratio of about 1.3:2.5.

When vanadium is added excessively than the weight ratio, micro-cracks of the coating layer may occur, and the life of the coating layer may be significantly reduced, and when titania is excessively added, it is not well mixed with the ceramic component and thus sufficient heat resistance cannot be exhibited.

5 is a front view showing a flue assembly according to a second embodiment of the present invention, and FIG. 6 is an enlarged cross-sectional view showing the coupling structure of the flanges shown in FIG.

In this embodiment, the first wave 1110 of the one side flange 111 and the second wave 1210 of the other side flange 212 form a curved straight wave.

The first wave 1110 connects the first bent portion 1111 and the second bent portion 1113 and the first bent portion 1111 and the second bent portion 1113 to form a predetermined interposition angle It includes a connecting wave (1112).

The first bent portion 1111, the second bent portion 1113, and the connection wave 1112 are formed in a straight line.

The first bent portion 1111 may be disposed to be inclined upward or downward in the radial direction. The second bent portion 1113 may be disposed to be inclined in a direction opposite to the first bent portion 1111.

In this embodiment, the first bent part 1111 is disposed to be inclined downward in the radial direction, and the second bent part 1113 is disposed to be inclined upward in the radial direction.

When viewed from a top view, the first bent portion 1111 and the second bent portion 1113 are formed in a ring shape.

The first bent part 1111 and the second bent part 1113 form an angle between 0 degrees and less than 180 degrees. The connection wave 1112 may be disposed orthogonal to the inner pipe 114.

The first bent portion 1111 is disposed close to the inner pipe 114, and the second bent portion 1113 is disposed radially outside the first bent portion 1111.

In this embodiment, the first wave 1110 is formed to be concave downward.

The second wave 1210 connects the first bent portion 1211 and the second bent portion 1213 and the first bent portion 1211 and the second bent portion 1213 forming a predetermined angle It includes a connecting wave 1212.

The first bent portion 1211, the second bent portion 1213, and the connection wave 1212 are formed in a straight line.

The first bent part 1211 and the second bent part 1213 form an angle between 0 degrees and less than 180 degrees. The connection wave 1212 may be disposed orthogonal to the inner pipe 214.

The first bent portion 1211 is disposed closer to the inner pipe 214, and the second bent portion 1213 is disposed radially outward than the first bent portion 1211.

In this embodiment, the second wave 1210 is formed to be concave downward.

The second wave 1210 is disposed above the first wave 1110 and may be mounted on the first wave 1110.

In this embodiment, the first wave 1110 and the second wave 1210 form a concentric circle based on the axis center of the year.

A first sealant 500 may be applied between the first wave 1110 and the second wave 1210.

The second sealant 600 may be filled outside the first wave 1110 and the second wave 1210.

Hereinafter, since the remaining configurations are similar to those of the first embodiment, detailed descriptions are omitted.

7 is a front view showing a flue assembly according to a third embodiment of the present invention, and FIG. 8 is an enlarged cross-sectional view showing the coupling structure of the flanges shown in FIG. 7.

In this embodiment, the first wave 2110 of the one side flange 111 and the second wave 2210 of the other side flange 212 are formed in a zigzag shape.

The first wave 2110 includes a first bent portion 1111 and a second bent portion 1113 forming a predetermined interposition angle, and the first bent portion 1111 and the second bent portion 1113 Is connected.

The first bent part 1111 and the second bent part 1113 are formed in a linear shape.

The first bent portion 1111 may be disposed to be inclined upward or downward in the radial direction. The second bent portion 1113 may be disposed to be inclined in a direction opposite to the first bent portion 1111.

In this embodiment, the first bent part 1111 is disposed to be inclined downward in the radial direction, and the second bent part 1113 is disposed to be inclined upward in the radial direction.

When viewed from a top view, the first bent portion 1111 and the second bent portion 1113 are formed in a ring shape.

The first bent part 1111 and the second bent part 1113 form an angle between 0 degrees and less than 180 degrees.

The first bent portion 1111 is disposed close to the inner pipe 114, and the second bent portion 1113 is disposed radially outside the first bent portion 1111.

In this embodiment, the first wave 1110 is formed to be concave downward.

The second wave 2210 includes a first bent portion 2211 and a second bent portion 2213 forming a predetermined interposition angle, and the first bent portion 2211 and the second bent portion 2213 Is connected.

The first bent part 2211 and the second bent part 2213 are formed in a linear shape.

The first bent part 2211 and the second bent part 2213 form an angle between 0 degrees and less than 180 degrees.

The first bent portion 2211 is disposed close to the inner pipe 214, and the second bent portion 2213 is disposed radially outside the first bent portion 1211.

In this embodiment, the second wave 2210 is formed to be concave downward.

The second wave 2210 may be disposed above the first wave 2110 and may be mounted on the first wave 2110.

In the present embodiment, the first wave 2110 and the second wave 2210 form a concentric circle based on the axis center of the year.

A first sealant 500 may be applied between the first wave 2110 and the second wave 2210.

The second sealant 600 may be filled outside the first wave 2110 and the second wave 2210.

Hereinafter, since the remaining configurations are similar to those of the second embodiment, detailed descriptions are omitted.

9 is a plan view of a first flue according to a fourth embodiment of the present invention, and FIG. 10 is a bottom view of a second flue according to the fourth embodiment of the present invention.

Unlike the above embodiments, the waves of the years according to this embodiment are arranged radially with respect to the axial center of the years.

A first wave 3110 is disposed on one side flange 111 of the first flue 100, and a second wave 3210 is disposed on the other side flange 212 of the second flue 200.

The first wave 3110 and the second wave 3210 are formed radially with respect to the axis center O. The first wave 3110 is formed only in a partial section of the one side flange 111, and the second wave 3210 is formed only in a partial section of the other side flange 212.

Four locations of the first wave 3110 are formed in one flange 111, and four locations of the second wave 3210 are formed corresponding thereto.

The first wave 3110 includes a first bent portion 1111 ′ and a second bent portion 1113 ′ of the third embodiment. The second wave 3210 includes a first bent portion 2111 ′ and a second bent portion 2113 ′ according to the third exemplary embodiment.

The first bent portions 1111 ′ and 2111 ′ and the second bent portions 1113 ′ and 2113 ′ may be disposed radially with respect to the axis center O.

The first bent portions 1111 ′ and 2111 ′ and the second bent portions 1113 ′ and 2113 ′ may be symmetrically disposed with respect to an axis center.

In this way, when the first bent parts 1111 ′ and 2111 ′ and the second bent parts 1113 ′ and 2113 ′ are arranged radially, the positional alignment of the first year 100 and the second year 200 is It could be easier.

That is, just by matching the first bent parts 1111 and 2111 ′ and the second bent parts 1113 ′ and 2113 ′, the axial center of the first year 100 and the second year 200 is Can be matched.

Hereinafter, since the remaining configurations are similar to those of the third embodiment, detailed descriptions are omitted.

11 is a plan view of a flue according to a fifth embodiment of the present invention.

The waves of the years according to the present embodiment are a mixture of waves according to the third embodiment and waves according to the fourth embodiment.

That is, four waves are arranged in a circumferential direction as in the third embodiment, and four first waves are arranged in a radial direction as in the fourth embodiment based on the axis center O.

That is, the first wave 3110 and the second wave 3210 of the fourth embodiment are radially arranged based on the axial center.

In addition, the first wave 2110 and the second wave 2210 of the third embodiment are arranged in the circumferential direction between the first wave 3110 and the second wave 3210 of the fourth embodiment.

Hereinafter, since the remaining configurations are similar to those of the third and fourth embodiments, detailed descriptions are omitted.

Those of ordinary skill in the art to which the present invention pertains will appreciate that the present invention can be implemented in other specific forms without changing the technical spirit or essential features thereof. Therefore, it should be understood that the embodiments described above are illustrative in all respects and not limiting. The scope of the present invention is indicated by the scope of the claims to be described later rather than the detailed description, and all changes or modified forms derived from the meaning and scope of the claims and their equivalent concepts are included in the scope of the present invention. It must be interpreted.

100: 1st year 111: One side flange
112: other side flange 114: inner pipe
115: 1st wave 150: 1st outer year
200: 2nd year 250: 2nd outer year
300: inner band 400: outer band
500: first sealant 600: second sealant

Claims (5)

A first flue with one side and the other side open and a space formed therein;
A second flue with one side and the other side open and a space formed therein;
Including; an inner band surrounding the boundary between the first year and the second year,
The first year above,
One side flange formed on one side;
The other side flange formed on the other side;
Including; an inner pipe connecting the one side flange and the other side flange,
The second year above,
One side flange formed on one side;
The other side flange formed on the other side;
Including; an inner pipe connecting the one side flange and the other side flange,
The inner band is disposed to surround one flange of the first flue and the other flange of the second flue,
A first sealant is disposed on one flange of the first flue and the other flange of the second flue,
A second sealant is disposed inside the inner band,
The first year and the second year are formed in a cylindrical shape,
A first wave is formed in a radial direction on one flange of the first flue,
A second wave is formed in the radial direction on the other flange of the second flue,
The first wave and the second wave are formed in a shape corresponding to each other,
The first wave comprises at least one mountain and at least one valley,
The second wave comprises at least one mountain and at least one valley,
The mountain of the first wave is located under the mountain of the second wave,
The peak of the first wave is inserted and supported by the peak of the second wave,
A flue assembly for aligning the inner pipes of the first flue and the inner pipes of the second flue.
delete The method according to claim 1,
The first wave and the second wave are formed in a curved line assembly.
The method according to claim 1,
A first outer flue surrounding the outside of the first flue;
A second outer flue surrounding the outside of the second flue;
A first spacer coupled to the first flue and the first outer flue and radially spaced apart the first flue and the first outer flue;
A second spacer coupled to the second flue and the second outer flue and radially spaced apart the second flue and the second outer flue;
The flue assembly further comprising an outer band surrounding the outer side of the first outer flue and the second outer flue.
The method of claim 4,
The first outer flue further includes a first insertion groove concavely formed from an outer side in a radial direction to an inner direction,
The second outer flue further includes a second insertion groove formed concave in the radially outward to inward direction, and
A flue assembly in which one end of the outer band is inserted into the first insertion groove, and the other end of the outer band is inserted into the second insertion groove.

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