KR102540120B1 - Isulated exhaust pipe for easy alignment - Google Patents

Abstract

The present invention has one side and the other side 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; and an inner band surrounding the boundary between the first flue and the second flue, wherein the first 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 second flue includes one side flange formed on one side; The other side flange formed on the other side; 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 flange of the second flue, and the one side flange of the first flue and the second flue A first sealant is disposed on the other flange of the inner band, a second sealant is disposed inside the inner band, the first flue and the second flue are formed in a cylindrical shape, and a radial direction extends to one flange of the first flue. A first wave is formed, a second wave is formed in a 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, and the first wave has a predetermined interval angle. Forming and including a first bent portion and a second bent portion disposed in the radial direction, wherein the second wave forms a predetermined angle between the first and includes a first bent portion and a second bent portion disposed in the radial direction, wherein the The first bent part and the second bent part of the first wave are formed in a straight line shape, the first bent part and the second bent part of the second wave are formed in a straight line shape, and the first bent part of the first wave is formed in a second bent part. It is located below the first bent part of the wave to support the first bent part of the second wave, and the second bent part of the first wave is located below the second bent part of the second wave to support the second bent part of the second wave. The bent part is supported, and the inner pipe of the first flue and the inner pipe of the second flue are aligned in a line.

Description

Flue assembly for easy alignment {Isulated exhaust pipe for easy alignment}

The present invention relates to a flue assembly.

In order to obtain the necessary energy in power plants, incinerators, factories, residential and non-residential buildings, fuels such as petroleum, coal, and gas are used for combustion. do.

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

The components of the flue are formed of an inner tube and an outer tube at regular intervals (usually about 2.5 to 5 cm) so that an air layer can be formed on the outside of the inner tube, and the air layer between the inner tube and the outer tube serves as a heat insulator. It is produced in a double flue method that does.

When the temperature of the exhaust gas is very high, such as in 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 an exhaust gas discharge flue, which includes an outer tube, an insulating inner tube fixed by a plurality of spacers on inner circumferential surfaces of both ends of the outer tube, and a plurality of controllers at the inner center of the heat insulating inner tube. In the flue assembly for exhaust gas discharge comprising a foam type sound absorbing pipe member fixed to the center by 2 spacers, the foam type sound absorbing pipe member is formed by compression molding an aluminum material having a plurality of pores, characterized in that do. According to the disclosed technology, noise in the flue is reduced by being absorbed by the heat insulating member through the sound absorbing hole of the sound absorbing inner cylinder, thereby minimizing the noise generated in the flue.

Korean Patent Publication No. 10-2015-0098140 discloses that the flue assembly for exhaust gas discharge can stably fix the insulation material through the bent portion formed in the inner tube of the insulation, and the sound-absorbing hole is formed through the protruding portion through which the upper part penetrates. Disclosed is a flue assembly for discharging exhaust gas capable of preventing the outflow of the exhaust gas.

According to the disclosed technology, a cylindrical sound-absorbing inner tube having a plurality of sound-absorbing holes formed on the outer circumferential surface and a heat-insulating member is filled with a sound-absorbing inner tube formed with a plurality of sound-absorbing holes formed on the outer circumferential surface, and a plurality of bent parts recessed inward are formed. The distance between the heat insulating inner cylinder fixing the heat insulating member, the plurality of first spacers coupled to the upper and lower portions respectively to maintain the distance between the sound absorbing inner cylinder and the heat insulating inner cylinder, the outer cylinder coupled to the outer surface of the heat insulating inner cylinder, and the heat insulating inner cylinder and the outer cylinder It is 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 airtightness of the part connecting the inner tube and the part connecting the outer tube, and the heat insulation performance is poor. It has the disadvantage that the surface temperature can be easily increased and heat loss occurs. In addition, the part connecting the flue is formed in the form of a flat flange, and by tightening and fastening the V-band with airtight material applied to the outside of the flange, when the amount of filling of the airtight material on the contact surface is not large and the flue expands and expands due to extreme temperature change As the contact surface of the flat flange falls, 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 leak prevention, and is structurally sound.

An object of the present invention is to provide a flue assembly in which the inner pipe of the first flue and the inner pipe of the second flue can be aligned in a line during the process of installing the first flue and the second flue.

An object of the present invention is to provide a flue assembly in which a first wave of a first flue and a second wave of a second flue are easily matched and aligned.

The present invention has one side and the other side 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; and an inner band surrounding the boundary between the first flue and the second flue, wherein the first 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 second flue includes one side flange formed on one side; The other side flange formed on the other side; 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 flange of the second flue, and the one side flange of the first flue and the second flue A first sealant is disposed on the other flange of the inner band, a second sealant is disposed inside the inner band, the first flue and the second flue are formed in a cylindrical shape, and a radial direction extends to one flange of the first flue. A first wave is formed, a second wave is formed in a 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, and the first wave has a predetermined interval angle. Forming and including a first bent portion and a second bent portion disposed in the radial direction, wherein the second wave forms a predetermined angle between the first and includes a first bent portion and a second bent portion disposed in the radial direction, wherein the The first bent part and the second bent part of the first wave are formed in a straight line shape, the first bent part and the second bent part of the second wave are formed in a straight line shape, and the first bent part of the first wave is formed in a second bent part. It is located below the first bent part of the wave to support the first bent part of the second wave, and the second bent part of the first wave is located below the second bent part of the second wave to support the second bent part of the second wave. The bent part is supported, and the inner pipe of the first flue and the inner pipe of the second flue are aligned in a line.

The first bent part of the first wave and the first bent part of the second wave may be disposed in parallel.

The second bent part of the first wave and the second bent part of the second wave may be disposed in parallel.

A connecting wave connecting the first bent part and the second bent part of the first wave may be further included.

A connecting wave connecting the first bent part and the second bent part of the second wave may be further included.

First, in the present invention, since the first wave and the second wave having shapes corresponding to each other are formed on one flange of the first flue and the other flange of the second flue, which are disposed facing each other, the assembly of the first flue and the second flue are formed. It has the advantage of easy position alignment.

Second, in the present invention, since one side flange of the first flue and the other side flange of the second flue are molded through waves, it has the advantage of being easy to assemble in the horizontal direction as well as the vertical direction.

Third, in the present invention, the first sealant is applied between one side flange of the first flue and the other flange of the second flue, and the second sealant is applied to the outside of the one side flange of the first flue and the other side flange of the second flue and inside the inner band. Since the sealant is filled, there is an advantage in effectively implementing airtightness.

Fourth, the present invention can easily bond one side flange of the first flue and the other flange of the second flue through the first sealant applied between the one side flange of the first flue and the other flange of the second flue, and the airtightness is maintained. There are advantages to implementing it effectively.

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

Sixth, since the first wave of the first flue and the second wave of the second flue are formed in a straight line, the wave arranged on the lower side can stably support the wave disposed on the upper side.

1 is a front view showing a flue assembly according to a first embodiment of the present invention.
FIG. 2 is an enlarged view of a portion of FIG. 1 .
FIG. 3 is a perspective view illustrating a coupling structure of the inner band shown in FIG. 2 .
FIG. 4 is a perspective view illustrating 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 a 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 a coupling structure of the flanges shown in FIG. 7 .
9 is a plan view of a first flue 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 methods of achieving them, will become clear with reference to the detailed description of the following embodiments taken in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms, and only these embodiments make the disclosure of the present invention complete, and common knowledge in the art to which the present invention belongs. It is provided to completely inform the person who has the scope of the invention, and the present invention is only defined by the scope of the claims. Like reference numbers designate like elements throughout the specification.

1 is a front view showing a flue assembly according to a first embodiment of the present invention, FIG. 2 is an enlarged view of a part of FIG. 1, and FIG. 3 is a perspective view showing the coupling structure of the inner band shown in FIG. 2, FIG. 4 is a perspective view illustrating 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 coupled. The flue assembly may be disposed in a vertical or 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 disposed in the horizontal direction, the condensed water therein may accumulate at the lower side in the gravitational direction, and the flue assembly according to the present embodiment can prevent the condensed water from leaking through the connecting parts of the flues.

The flue assembly includes a first flue 100 and a second flue 200. The structures of the first flue 100 and the second flue 200 are the same. The first flue 100 and the second flue 200 are preferably formed of a material having high corrosion resistance.

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

The flue assembly includes the first flue 100 and the second flue 200, and an inner band 300 that closely adheres the boundary between the first flue 100 and the second flue 200.

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

Since the driving of the first flue 100 and the second flue 200 are the same, they will be described based on one. If it is necessary to distinguish each configuration of the first flue 100 and the second flue 200, prefixes such as "first" and "second" may be added to distinguish them.

In the first flue 100, one side flange 111 is formed on one side (upper side in this embodiment) and 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 side 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 prismatic 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 the 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 formed to be the same. Unlike the present embodiment, the widths of one side flange 111 and the other side flange 112 may be formed to be different.

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 shapes corresponding to each other.

The one side flange 111 and the other side flange 112 are integrally manufactured 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 side flange 211 is formed on one side (upper side in this embodiment) and the other side 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 side flange 212.

The one side flange 211 and the other side flange 212 are integrally manufactured 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 flue 100 and the second flue 200 are combined, the other flange of the second flue may be stacked on the upper side of the one side flange of the first flue 100 .

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

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 bend in the longitudinal direction of the flue 100 .

The waves 115 and 215 of the one side flange 111 of the first flue 100 and the other side flange 212 of the second flue 200 have shapes corresponding to each other.

The wave of the one side flange 111 is called a first wave 115, and the second wave 215 of the other side flange 212 is called. In this embodiment, the first wave 115 and the second wave 215 are formed as curves when viewed in 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 peaks and valleys may be alternately arranged in the radial direction of the first flue 100 .

Among the mountains, a mountain closer to the center is referred to as a first mountain 115a, and a mountain farther from the center is referred to as a second mountain 115b. Among the valleys, a valley closer to the center is referred to as a first valley 115c, and a valley farther from the center is referred to as a second valley 115d.

In this embodiment, the centers of planar 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 plane section. The radius of the first valley 115c is smaller than that of the second valley 115d at the center of the plane 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 plane section.

In this embodiment, the first ridge 115a, the first trough 115c, the second ridge 115b, and the second trough 115d are formed throughout the one side flange 111. Unlike the present embodiment, the first ridge 115a, the first trough 115c, the second ridge 115b, and the second trough 115d may be formed only on a part of the one side flange 111.

The same first ridge, first trough, second ridge, and second trough as the one side flange 111 are formed on the other side flange 112 of the first flue 100 as well.

The other flange 212 of the second flue 200 has a first ridge 215a corresponding to the first ridge 115a, the first trough 115c, the second ridge 115b, and the second trough 115d. , a first valley 215c, a second peak 215b, and a second valley 215d are formed.

A first ridge, a first trough, a second ridge, and a second trough are formed on one side flange 211 of the second flue 200 as well.

In this embodiment, the first ridge 115a of the first flue 100 is located below the first ridge 215a of the second flue 200, so that the first ridge 215a of the second flue 200 ) is inserted and supported. The remaining hills and valleys are supported in the same way.

The first trough 215c of the second flume 200 is positioned above the first trough 115c of the first flume 100 and is inserted into the first trough 115c of the first flume 100. .

The one side flange 111 includes a first wave 115 that forms a curve in the longitudinal direction of the first flue 100, and a second wave 115 that protrudes further outward in the radial direction from the radial end of the first wave 115. 1 includes an extension (116).

The other flange 212 has a second wave 215 that forms a curve in the longitudinal direction of the second flue 200, and a second wave 215 that protrudes further outward in the radial direction from the radial end of the second wave 215. 2 extensions 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 flues.

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

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

Since the first wave 115 and the second wave 215 have shapes corresponding to each other, when the first flue 100 and the second flue 200 are assembled, the first flue 100 and the second flue 100 Position alignment of flue 200 is easy.

That is, the second flue 200 can be aligned in place simply by placing the second flue 200 on the first flue 100 .

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

Positional alignment of the first flue 100 and the second flue 200 by the combination of the waves 115 and 215 can minimize the resistance of the fluid.

In addition, if the first inner pipe 114 and the second inner pipe 214 are not aligned in a row and either one of them protrudes, foreign substances contained in the gas may be accumulated, and the accumulated foreign substances may cause corrosion can make it

The flue assembly according to this embodiment can minimize the accumulation of such foreign substances through the combination 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 extensions 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 made of a material having elasticity.

The first sealant 500 may protrude into inner surfaces of the inner pipes 114 and 214 . The first sealant 500 may protrude outward from the extensions 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 separated by a predetermined interval by the first sealant 500 .

Since the first sealant 500 is made of an elastic material, even if vibration or shock is generated in the first flue 100 or the second flue 200, the first sealant 500 can absorb it to some extent. there is.

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

Water inside the first inner pipe 114 and the second inner pipe 214 is prevented from leaking between the first inner pipe 114 and the second inner pipe 214 due to the first sealant 500 . can

The inner band 300 is disposed to surround the flanges. The inner valve 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 outside the one side flange 211 and the other side flange 212 in the radial direction.

The inner band 300 extends from the 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 in the longitudinal direction of the inner pipe 114. The band extension parts 320 and 330, 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 for coupling.

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 inserting portion 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 is wide on the side where the one side flange 211 and the other side flange 212 are inserted, and is formed to become narrower toward the outer side in the radial direction of the flue.

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

The band inserting part 310 includes a first inclined part 311 disposed below the one side flange 111, a second inclined part 312 disposed above the other side flange 212, and the first inclined part 312. It connects the part 311 and the second inclined part 312 and includes a connection part 313 disposed outside the one side flange 111 and the other side flange 212 in the radial direction.

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 integrally formed with the band inserting part 310 . The band fastening parts 351 and 352 are formed by bending the band insertion part 310 outward in the radial direction.

The one disposed at one end is called a first band fastening part 351, and the one disposed at the other end is called 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 toward the outer side of the flue in a radial direction.

Fastening holes 355 are formed in the first band fastening part 351 and the second band fastening part 352, respectively, and through the fastening of the band fastening members 353 and 354, the first band fastening part ( 351) and the second band fastening part 352 may be in close contact with each other.

It is preferable that the inner band 300 has the same diameter as the inner pipe 114 or slightly smaller than the inner pipe 114 . The inner band 300 may adhere to the outer surface of the inner pipe 114 through the difference in diameter.

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

A band-shaped plate is bent to manufacture the band insertion portion 310, the band extension portions 320 and 330, and the band fastening portions 351 and 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 320 and the second band extension 330 may adhere to the outer surface of the inner pipe 114 . As the first band extension part 320 and the second band extension part 330 come into close contact with the inner pipe 114, the insertion groove 315 can 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 volume of the second sealant 600 greater than the volume of the insertion groove 315 is filled.

When the second sealant 600 is less than the volume of the insertion groove 315, a space may be formed therein, which may cause defects.

The second sealant 600 preferably has portions 601 and 602 protruding out of the band extension portions 320 and 330 .

The second sealant 600 filled in the insertion groove 315 may be disposed to cover the entirety of one side flange 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 one side flange 111 of the first flue 100 and the other side flange 212 of the second flue 200 in a radial direction outside. .

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

Meanwhile, in the flue assembly according to the present embodiment, the first outer flue 150 surrounding the outside of the first flue 100, the 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 spaced apart from the first flue 100 and the first outer flue 150 in the radial direction; a second spacer 260 coupled to the second flue 200 and the second outer flue 250 and spacing the second flue 200 and the second outer flue 250 apart in the radial direction; An outer band 400 surrounding the outside of the outer flue 150 and the second outer flue 250 may be further included.

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

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

The lengths of the first outer flue 150 and the second outer flue 250 may be shorter than those of the first flue 100 and the second flue 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 adhere to outer surfaces of the first outer flue 150 and the second outer flue 250 .

The outer band 400 may seal the insides 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) adhered to the first outer flue 150, and the other end (402, upper end in this embodiment) adhered to the second outer flue 250. . The one end 401 is in 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 is formed with a first insertion groove 151 concavely formed from the outside in the radial direction to the inside. 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 is formed with a second insertion groove 251 concavely formed from the outside in the radial direction to the inside. The second insertion groove 251 may be formed in a ring shape along an 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 bent outward in the radial direction. The band fastening parts 403 and 404 are disposed to face each other, and may be fastened and coupled through 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 conduction of heat from the first flue 100 to the first outer flue 150 .

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

The first spacer 160 and the second spacer 260 are disposed symmetrically up and down.

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

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

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

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

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

The first connection part 161 may be disposed between the first band extension part 320 and the first flue 100 . When the inner band 300 is fastened, the first band extension part 320 adheres closely to the first connection part 161, and airtightness can be further improved.

In particular, since the second sealant 600 can be filled between the first band extension part 320 and the first connection part 161, the airtight performance can 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 part 261 and the second connection part 262 may be bent orthogonally.

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 adheres closely to the first connecting part 261, and airtightness can be further improved.

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

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

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

The protruding lengths of the second connecting portion 162 of the first spacer 160 and the second connecting portion 262 of the second spacer 260 in the radial direction may be equal to or longer than the protruding length of the inner band 300 . there is.

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

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

Since the second spacer 260 has a structure symmetrical to that of the first spacer 160, a detailed description thereof will be omitted.

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

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

Vanadium is a silver-gray transition metal with atomic number 23 and can be added to the composition in small amounts to increase heat resistance and strength of the flue pipe. However, if it is added in an excessive amount, it may cause micro cracks in the coating layer during the coating process.

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

It may be preferable that the metal component added in addition to the ceramic component in the composition is a combination of vanadium and titania. Other metal components, such as tungsten, phosphorus, and cobalt, which may be added as coating components inside the flue pipe, cause microcracks in the process of forming the ceramic coating layer to interfere with the formation of the coating layer, and contain only a combination of vanadium and titania. Compared to that, the heat resistance is reduced. Thus, in one embodiment, the catalyst composition may not include tungsten, phosphorus, or cobalt.

The vanadium and titania mixture may be included in an amount of 0.1 to 3 parts by weight, preferably 0.2 to 2.5 parts by weight, 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 cannot be maintained under high temperature, and thus distortion and cracking may occur.

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

When vanadium is added in excess of the above weight ratio, microcracks of the coating layer are caused to significantly reduce the lifetime of the coating layer. When titania is added excessively, sufficient heat resistance cannot be exhibited because it is not well mixed with ceramic components.

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 a coupling structure of flanges shown in FIG. 5 .

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 bent straight wave.

The first wave 1110 connects the first bent part 1111 and the second bent part 1113 forming a predetermined angle between the first bent part 1111 and the second bent part 1113. It includes a connecting wave 1112 that does.

The first bent part 1111, the second bent part 1113 and the connecting wave 1112 are formed in a straight line shape.

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

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

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

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

The first bent part 1111 is disposed close to the inner pipe 114, and the second bent part 1113 is disposed outside the first bent part 1111 in a radial direction.

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

The second wave 1210 connects the first bent part 1211 and the second bent part 1213 forming a predetermined angle between the first bent part 1211 and the second bent part 1213. It includes a connection wave 1212 that does.

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

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

The first bent part 1211 is disposed close to the inner pipe 214 , and the second bent part 1213 is disposed outside the first bent part 1211 in a radial direction.

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

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

In this embodiment, the first wave 1110 and the second wave 1210 form concentric circles based on the axis center of the flue.

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 .

Since the remaining configurations are similar to those of the first embodiment, detailed descriptions thereof 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 a coupling structure of 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 part 1111 and a second bent part 1113 forming a predetermined angle, and the first bent part 1111 and the second bent part 1113 is connected

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

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

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

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

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

The first bent part 1111 is disposed close to the inner pipe 114, and the second bent part 1113 is disposed outside the first bent part 1111 in a radial direction.

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

The second wave 2210 includes a first bent part 2211 and a second bent part 2213 forming a predetermined angle between the first and second bent parts 2211 and 2213. is connected

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

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

The first bent part 2211 is disposed close to the inner pipe 214 , and the second bent part 2213 is disposed outside the first bent part 1211 in a radial direction.

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

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

In this embodiment, the first wave 2110 and the second wave 2210 form concentric circles based on the axis center of the flue.

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 .

Since the remaining configurations are similar to those of the second embodiment, detailed descriptions thereof 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 a fourth embodiment of the present invention.

Unlike the above embodiments, the flue waves according to the present embodiment are characterized in that they are arranged radially with respect to the axial center of the flues.

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

The first wave 3110 is formed in four places on one side flange 111, and the second wave 3210 is formed in four places corresponding thereto.

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

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

The first bent parts 1111' and 2111' and the second bent parts 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 radially arranged, the alignment of the first flue 100 and the second flue 200 is could be easier.

That is, the axial centers of the first flue 100 and the second flue 200 are changed only by matching the first bent parts 1111 and 2111' and the second bent parts 1113' and 2113'. can be matched

Since the remaining configurations are similar to those of the third embodiment, detailed descriptions thereof are omitted.

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

Waves of flues according to this embodiment are a mixture of waves according to the third embodiment and waves according to the fourth embodiment.

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

That is, the first wave 3110 and the second wave 3210 of the fourth embodiment are radially arranged with respect to the axis center.

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

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

Those skilled in the art to which the present invention pertains will understand that the present invention can be embodied in other specific forms without changing its technical spirit or essential features. Therefore, the embodiments described above should be understood as illustrative in all respects and not limiting. The scope of the present invention is indicated by the claims to be described later rather than the detailed description above, and all changes or modifications derived from the meaning and scope of the claims and equivalent concepts thereof are included in the scope of the present invention. should be interpreted

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

Claims (5)

a first flue 100 having one side and the other side open and a space formed therein;
a second flue 200 having one side and the other side open and a space formed therein;
an inner band 300 surrounding a boundary between the first and second flues;
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;
a first spacer (160) coupled to the first flue (100) and the first outer flue (150) and spaced apart from the first flue (100) and the first outer flue (150) in a radial direction;
a second spacer (260) coupled to the second flue (200) and the second outer flue (250) and spaced apart from the second flue (200) and the second outer flue (250) in a radial direction;
Including; an outer band 400 surrounding the outside of the first outer flue 150 and the second outer flue 250,
The first year,
One side flange formed on one side;
The other side flange formed on the other side;
Including; an inner pipe 114 connecting the one side flange and the other side flange,
The second year,
One side flange formed on one side;
The other side flange formed on the other side;
Including; an inner pipe 214 connecting the one side flange and the other side flange,
The inner band is disposed to surround one side flange of the first flue and the other side flange of the second flue,
A first sealant 500 is disposed on one flange of the first flue and the other flange of the second flue,
A second sealant 600 is disposed inside the inner band,
The first flue and the second flue are formed in a cylindrical shape,
A first wave 1110 is formed in the radial direction on one side flange of the first flue,
A second wave 1210 is formed in the radial direction on the other flange of the second flue,
The first wave 1110 and the second wave 1210 are formed in shapes corresponding to each other,
The first wave 1110 includes a first bent part 1111 and a second bent part 1113 disposed in a radial direction and forming a predetermined angle between them,
The second wave includes a first bent portion 1211 and a second bent portion 1213 disposed in a radial direction and forming a predetermined angle,
The first bent part 1111 and the second bent part 1113 of the first wave 1110 are formed in a straight line shape,
The first bent part 1211 and the second bent part 1213 of the second wave 1210 are formed in a straight line shape,
The first bent part 1111 of the first wave is located below the first bent part 1211 of the second wave to support the first bent part 1211 of the second wave,
The second bent part 1113 of the first wave is located below the second bent part 1213 of the second wave to support the second bent part 1213 of the second wave,
Align the inner pipe 114 of the first flue and the inner pipe 214 of the second flue in a line,
The first bent part 1111 of the first wave and the first bent part 1211 of the second wave are disposed in parallel,
The second bent part 1113 of the first wave and the second bent part 1213 of the second wave are disposed in parallel,
a connecting wave 1112 connecting the first bent part 1111 and the second bent part 1113 of the first wave 1110; and a connecting wave 1212 connecting the first bent portion 1211 and the second bent portion 1213 of the second wave 1210;
The connection wave 1112 of the first wave 1110 and the connection wave 1212 of the second wave 1210 are arranged in parallel,
The first spacer 160 includes a first connection part 161 coupled to the first flue 100 and a second connection part 162 fixed to the first outer flue 150,
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 inner band 300,
A band insertion portion 310 into which the first wave 1110 of the first flume 100 and the second wave 1210 of the second flume 200 are inserted;
A first band extension part 320 extending from the band insertion part 310 in the longitudinal direction of the inner pipe 114 of the first flue 100;
A second band extension part 330 extending from the band insertion part 310 in the longitudinal direction of the inner pipe 214 of the second flue 200;
Band fastening parts 351 and 352 disposed at one end and the other end of the band insertion part 310, respectively;
Includes band fastening members 353 and 354 for fastening and coupling the band fastening parts 351 and 352,
The first connection part 161 of the first spacer 160 is inserted between the first band extension part 320 and the inner pipe 114 of the first flue,
The first connection part 261 of the second spacer 260 is interposed between the second band extension part 330 and the inner pipe 214 of the second flue,
The first band extension part 320 is
The band insertion part 310 is formed with a concave insertion groove 315 so that the first wave 1110 and the second wave 1210 can be inserted,
The second sealant 600 is filled in the insertion groove 315 and disposed to surround the first wave 1110 and the second wave 1210,
A larger amount of the second sealant 600 than the volume of the insertion groove 315 is filled into the insertion groove 315 so that a portion 601 protrudes out of the first band extension part 320,
A larger amount of the second sealant 600 than the volume of the insertion groove 315 is filled in the insertion groove 315 so that a portion 602 protrudes out of the second band extension part 330,
The first band extension part 320 is in close contact with the outer surface of the inner pipe 114 of the first flue 100 to seal the insertion groove 315,
The second band extension part 330 is in close contact with the outer surface of the inner pipe 214 of the second flue 200 to seal the insertion groove 315,
A coating layer containing a ceramic component, vanadium, and titania is provided inside the inner pipe 114 of the first flue and the inner pipe 214 of the second flue,
The ceramic component includes alumina and can form a ceramic form, silicon carbide, cordierite (MgO.Al2O3.SiO2), sillimanite (Al2O3 SiO2), kaolin (Al2O3 2SiO2) 2H2O), silica (SiO2), diatomaceous earth or a combination thereof,
The flue assembly of claim 1, wherein the vanadium and titania mixture forms a weight ratio of 1.3:2.5 based on 5 parts by weight of the ceramic component.

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