KR102457587B1 - Isulated quadruple exhaust pipe including spacer - Google Patents

Abstract

The present invention relates to a quadruple flue assembly in which a spacer is installed. According to the present invention, a first separation wall (1111) or a third separation wall (1115) is welded. Accordingly, installation positions of a 1-1 outer flue (1511), a 1-2 outer flue (1512), and a 1-3 outer flue (1513) are also automatically aligned. As a result, operator's work difficulty can be greatly reduced. The quadruple flue assembly in which the spacer is installed of the present invention comprises: a first inner flue (100); the 1-1 outer flue (1511); the 1-2 outer flue (1512); the 1-3 outer flue (1513); a first spacer (1100); a second spacer (2100); a 1-1 separation space (1501); a 1-2 separation space (1502); and a 1-3 separation space (1503).

Description

Isulated quadruple exhaust pipe including spacer

The present invention relates to a quadruple flue assembly provided with a spacer.

Fuels such as petroleum, coal, and gas are burned to obtain the energy required in power plants, incinerators, factories, residential and non-residential buildings, etc. The connecting line that guides the chimney to the chimney to discharge the generated exhaust gas through the chimney do.

The flue is manufactured in the form of a double pipe having a heat insulation structure, because the flue usually uses a stainless steel sheet or a plated steel sheet material, and exhaust gas of about 30-600°C passes through it.

The components of the flue are formed as an outer tube with a certain interval (usually about 2.5 to 5 cm) apart so that an air layer can be formed on the outside of the inner tube and the inner tube, and the air layer between the inner tube and the outer tube serves as an insulator. It is manufactured in a double-year method.

When the temperature of exhaust gas is very high like a generator, it can be manufactured as a triple flue 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 exhaust, and includes an outer tube, an insulated inner passage fixed by a plurality of spacers on the inner peripheral surfaces of both ends of the outer tube, and a plurality of products in the inner center of the insulated inner tube. In the flue assembly for exhaust gas emission comprising a foamed sound-absorbing tube member fixed to the center by two spacers, the foamed sound-absorbing tube member is formed by compression molding an aluminum material having a plurality of pores, characterized in that do. According to the disclosed technology, the noise in the flue is absorbed and reduced by the heat insulating member through the sound-absorbing hole of the sound-absorbing inner tube, thereby minimizing the noise generation in the flue.

Korean Patent Laid-Open Patent No. 10-2015-0098140 discloses that the flue assembly for exhaust gas can stably fix the insulator through the bent part formed in the insulating inner cylinder, and the sound absorption hole is formed through the protrusion through which the upper part is penetrated. Disclosed is a flue assembly for exhaust gas discharge that can prevent the outflow.

According to the disclosed technology, the top and bottom are opened, and the sound-absorbing inner tube and the sound-absorbing inner tube of a plurality of sound-absorbing holes are formed on the outer circumferential surface, and the heat-insulating member is filled with a predetermined space, and a plurality of bent parts recessed inward are formed. A plurality of first spacers each coupled to the upper and lower portions to maintain a gap between the heat-insulating inner tube and the sound-absorbing inner tube and the heat-insulating inner tube for fixing the heat-insulating member, and the outer tube coupled to the outer surface of the heat-insulating inner tube, and the space between the heat-insulating inner tube and the outer tube It is characterized in that it comprises a plurality of second spacers respectively coupled to the upper and lower portions to maintain.

In the conventional flue assembly as described above, the flue is formed of an inner tube and an outer tube, so it is difficult to maintain the airtightness of the portion connecting the inner tube and the outer tube to each other, so the thermal insulation performance is not good. It has the disadvantage that heat loss occurs because the surface temperature of the surface can be easily increased.

In addition, when the flue assembly is heated by the gas passing through the internal flue, there is a problem in that the operator is exposed to the risk of safety accidents such as burns.

Republic of Korea Patent No. 10-1087200 Republic of Korea Patent Publication No. 10-2015-0098140 Republic of Korea Patent Publication No. 10-2009-0073821 Republic of Korea Patent Publication No. 10-2018-0049688

It is an object of the present invention to provide a quadruple flue assembly equipped with a spacer.

An object of the present invention is to provide a quadruple flue assembly that can easily install a plurality of outer flues.

In the present invention, a hollow is formed in the longitudinal direction, one side flange 111 is formed on one side, the other side flange 112 is formed on the other side, and the one side flange 111 and the other side flange 112 are connected. The first inner year 100 including the inner pipe 114 to make; a 1-1 outer flute 1511 spaced apart from the first inner flue 100 in a radial direction and disposed to surround an outer circumferential surface of the first inner flue 100; The 1-1 outer year (1511) and the radially spaced apart, the 1-1 outer year (1511) is arranged to surround the outer circumferential surface of the first 1-2 outer year (1512); The 1-3 th outer flue 1513 spaced apart from the 1-2 outer flue 1512 in the radial direction, and disposed to surround the outer circumferential surface of the 1-2 outer flue 1512; The 1-1 outer year (1511), the 1-2 outer year (1512) and the 1-3 outer year (1513) are disposed on one side, and the 1-1 outer year (1511), the 1- a first spacer 1100 in which the 2nd outer year 1512 and the 1-3 outer year 1513 are assembled at once; It is disposed on the other side of the 1-1 outer year (1511), the 1-2 outer year (1512) and the 1-3 outer year (1513), and the 1-1 outer year (1511), the 1-th a second spacer 2100 in which the 2nd outer year 1512 and the 1-3 outer year 1513 are assembled at once; a 1-1 separation space 1501 formed between the first inner flue 100 and the 1-1 outer flue 1511 by the first spacer 1100 and the second spacer 2100; a first 1-2 spaced space 1502 formed between the 1-1 outer flue 1511 and the 1-2 outer flue 1512 by the first spacer 1100 and the second spacer 2100; a 1-3 th spaced space 1503 formed between the 1-2 th outer flue 1512 and the 1-3 th outer flue 1513 by the first spacer 1100 and the second spacer 2100; The first spacer 1100 may include: a 1-1 spaced portion 1110 coupled to the outer surface of the first inner flue 100; a 1-1 insertion part 1170 connected to the 1-1 spaced part 1110 and into which one end of the 1-1 outer flue 1511 is inserted; a first 1-2 spaced part 1120 connected to the 1-1 insertion part 1170 and extending in a radial direction of the first inner flue 100; a 1-2 insertion part 1180 connected to the 1-2 spaced part 1120 and into which one end of the 1-2 outer flue 1512 is inserted; a 1-3 spaced part 1130 connected to the 1-2 insertion part 1180 and extending in a radial direction of the first inner flue 100; The 1-3 th insertion part 1190 is connected to the 1-3 spaced part 1130 and into which one end of the 1-3 th outer flue 1513 is inserted; including, the 1-1 insert The part 1170 includes a first inner fitting wall 1171 surrounding the inner surface of the 1-1 outer year 1511; A first outer fitting wall (1172) surrounding the outer surface of the 1-1 outer year (1511); A first end wall (1173) connecting the first inner fitting wall (1171) and the first outer fitting wall (1172) and surrounding the upper end of the 1-1 outer year (1511); The 1-2 insertion part 1180 includes a second inner fitting wall 1181 surrounding the inner surface of the 1-2 outer year 1512; A second outer fitting wall (1182) surrounding the outer surface (radial outer side) of the 1-2 outer year (1512); A second end wall (1183) connecting the second inner fitting wall (1181) and the second outer fitting wall (1182) and surrounding the upper end of the 1-2 outer year (1512); The 1-3 insertion part 1190 includes a third inner fitting wall 1191 surrounding the inner surface of the 1-3 outer year 1513; A third outer fitting wall (1192) surrounding the outer surface of the 1-3 outer year (1513); A third end wall (1193) connecting the third inner fitting wall (1191) and the third outer fitting wall (1192) and surrounding the upper end of the 1-3 outer fitting wall (1513); The first penetrating member 1301 installed to pass through the 1-1 inserting part 1170 and the 1-1 outer flute 1511, and forming a mutual engagement in the longitudinal direction of the 1-1 outer flute 1511. ); A second penetrating member installed to pass through the 1-2 insertion part 1180 and the 1-2 outer flute 1512, and forming a mutual engagement with respect to the longitudinal direction of the 1-2 outer flute 1512 (1302); A third penetrating member installed to pass through the 1-3 inserting part 1190 and the 1-3 outer flute 1513 and forming mutual engagement in the longitudinal direction of the 1-3 outer flute 1513 (1303); including, the first penetrating member 1301, the through head 1310 in close contact with the first inner fitting wall (1171); The through-insertion part 1322 connected to the through-head 1310 and disposed inside the through-holes of the first inner fitting wall 1171 , the 1-1 outer year 1511 and the first outer fitting wall 1172 . ); It protrudes to the outside of the through hole, is bent at the through insertion part 1322, is in close contact with the first outer fitting wall 1172, and forms a mutual engagement with respect to the longitudinal direction of the first outer fitting wall 1172 A bending portion 1324; includes, and the 1-1 separation portion 1110 includes: a first separation wall 1111 in close contact with the outer surface of the first inner year 100; a second spacing 1112 formed by bending the first spacing 1111 and connected to the 1-1 insertion part 1170; and a third separation month 1115 bent in the first separation month 1111 and in close contact with the one side flange 111; and the first separation month 1111 and the second separation month 1112 are orthogonal The second separation month 1112 is formed by bending outwardly in the radial direction at the lower end of the first separation month 1111, and the first separation month 1111 is the first inner year 100 is disposed in the longitudinal direction of the first inner year 100 and fixed by welding to the outer surface of the first inner year 100, and the second separation month 1112 is disposed toward the outer side in the radial direction of the first inner year 100, and the The 1-1 separation space 1501 is formed by the length of the second separation wall 1112 , and the third separation wall 1115 is bent radially outward from the upper end of the first separation wall 1111 . is formed, and the length of the third separation wall 1115 is equal to or shorter than the length of the one side flange 111 , and the third separation wall 1115 is welded to the one side flange 111 and fixed It provides a flue assembly that can be

In the present invention, since the third separation wall 1115 is supported on the one side flange 111, the installation position of the first spacer 1100 is aligned.

In the present invention, since the insulating material 800 is disposed in at least one of the spaced spaces 1501, 1502, and 1503, the space between the spaced spaces 1501, 1502, and 1503 can be designed to be narrow. There is this.

According to the present invention, the installation position of the first spacer 1100 can be fixed by welding and fixing at least one of the first spacer 1111 and the third spacer 1115, and thereafter, the 1-1 There is an advantage that the installation position can be aligned by inserting the outer year 1511, the 1-2 outer year 1512, and the 1-3 outer year 1513 in sequence.

In the present invention, by welding the first separation month 1111 or the third separation month 1115, the 1-1 outer year (1511), the 1-2 outer year (1512) and the 1-3 outer year (1513) ), the installation position is also automatically aligned, so it has the advantage of significantly lowering the operator's work difficulty.

1 is a front view showing a flue assembly according to a first embodiment of the present invention.
FIG. 2 is a front sectional view of the first inner year and the second inner year shown in FIG. 1 .
3 is a partially enlarged cross-sectional view of the flue assembly shown in FIG.
FIG. 4 is a partially enlarged view of FIG. 3 .
5 is a perspective view illustrating a coupling structure of the inner band shown in FIG. 3 .
6 is a perspective view showing a coupling structure of the outer band shown in FIG. 1 .
7 is an exploded front sectional view of the first flue assembly according to the second embodiment of the present invention.
Figure 8 is a partial front sectional view showing the coupling structure of the first flue assembly according to the second embodiment of the present invention.
9 is an exemplary view illustrating a state in which the first spacer of FIG. 8 is expanded.
Figure 10 is a partial front sectional view showing the coupling structure of the first flue assembly according to the third embodiment of the present invention.

Advantages and features of the present invention and methods of achieving them will become apparent with reference to the embodiments described below in detail 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 allow the disclosure of the present invention to be complete, and common knowledge in the technical field to which the present invention pertains It is provided to fully inform those who have the scope of the invention, and the present invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout.

Figure 1 is a front view showing a flue assembly according to a first embodiment of the present invention, Figure 2 is a front sectional view of the first inner year and the second inner year shown in Figure 1, Figure 3 is shown in Figure 2 It is a partially enlarged cross-sectional view of the flue assembly, FIG. 4 is a partially enlarged view of FIG. 3, FIG. 5 is a perspective view showing the coupling structure of the inner band shown in FIG. 3, and FIG. 6 is the coupling of the outer band shown in FIG. It is a perspective view showing the structure, FIG. 7 is a partially exploded view of FIG. 3 , and FIG. 8 is a partially exploded view of FIG. 4 .

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 be in a form in which the flutes arranged in the horizontal direction and the flutes arranged in the vertical direction are assembled.

When the flue assembly is arranged in the horizontal direction, the condensed water inside may be pooled in the lower side in the direction of gravity, and the flue assembly according to this embodiment may prevent the condensed water from leaking through the connection part of the flues.

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

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

The flue assembly is a first inner year 100 and a second inner year 200, and an inner band 300 that closes the boundary between the first inner year 100 and the second inner year 200, and the It includes an outer band 400 that covers the boundaries of the outer year 150 and 250 .

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

Since the driving of the first inner year 100 and the second inner year 200 is the same, one description will be made. When it is necessary to distinguish each configuration of the first inner year 100 and the second inner year 200, prefixes such as “first” and “second” may be added to distinguish them.

In the first inner year 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 for 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 square or oval 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 the top view, the one side flange 111 is formed in a ring shape.

The other side 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 the one side flange 111 and the width of the other side flange 112 are formed to be the same. Unlike the present embodiment, the width of the 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 this 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 inner year 200, one side flange 211 is formed on one side (upper side in this embodiment), 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 for connecting the other side 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 inner flute 100 is disposed on the lower side, and the second inner flue 200 is disposed on the upper side.

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

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

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 radially outside the one side flange 211 and the other side flange 212 .

The inner band 300 has a band insertion part 310 into which the one side flange 211 and the other side flange 212 are inserted, and the band insertion part 310 extends in the longitudinal direction of the inner pipe 114 . fastening 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 inserting part 310, and the band fastening parts 351 and 352 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 this 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 insert 310 is formed in a V-shape. The insertion groove 315 is formed to have a wide side into which the one side flange 211 and the other side flange 212 are inserted, and to become narrower toward the outside in the radial direction of the flue.

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

The band insertion part 310 includes a first inclined part 311 disposed on the lower side of the one side flange 111 , a second inclined part 312 disposed on the upper side of the other side flange 212 , and the first inclined part It connects the part 311 and the second inclined part 312 and includes a connection part 313 disposed radially outside the one side flange 111 and the other side flange 212 .

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

One end and the other end of the band inserting unit 310 are separated, and band fastening units 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 inserting part 310 is bent outward in the radial direction to form the band fastening parts 351 and 352 .

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 to face outward in the radial direction of the flue.

A fastening hole 355 is formed in each of the first band fastening part 351 and the second band fastening part 352, 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.

The diameter of the inner band 300 is preferably the same as the inner pipe 114 or slightly smaller than the inner pipe 114 . Through the diameter difference, 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 manufacture the band insertion part 310, the band extension part 320, 330, and the band fastening parts 351 and 352 except for 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 . As 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 sealant may be filled in the insertion groove 315 . The sealant may be filled along the insertion groove 315 . It is preferable that the volume of the sealant than the volume of the insertion groove 315 is filled.

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

On the other hand, the flue assembly according to the present embodiment, the first outer flutes 150 surrounding the outside of the first inner year 100, and the second outer flutes surrounding the outside of the second inner year 200 ( 250) are 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 overall shape and have the same diameter.

The assembly of the first inner year 100 and the first outer year 150 is defined as the first year assembly 1001, and the assembly of the second inner year 200 and the second outer year 250 is the second It is defined as a flue assembly 1002.

In this embodiment, the first flue assembly 1001 and the second flue assembly 1002 are formed in a quadruple tube shape.

So, the first outer year 150 is spaced apart from the first inner year 100 and the 1-1 outer year 1511 arranged to surround the outer circumferential surface of the first inner year 100, and the 1-1 The first 1-2 outer year 1512 spaced apart from the outer year 1511 and disposed to surround the outer peripheral surface of the 1-1 outer year 1511, and the 1-2 outer year 1512 spaced apart from the first one 2 includes the 1-3 outer year 1513 arranged to surround the outer peripheral surface of the outer year (1512).

A 1-1 spaced space 1501 is formed between the first inner year 100 and the 1-1 outer year 1511, and the 1-1 outer year 1511 and the 1-2 outer year A first 1-2 spaced space 1502 is formed between 1512, and a 1-3 spaced space 1503 is formed between the 1-2 outer year 1512 and the 1-3 outer year 1513. is formed

In the present embodiment, the 1-1 separation space 1501 and the 1-3 separation space 1503 are arranged as empty spaces, and the insulating material 800 is arranged in the 1-2 separation space 1502 .

The 1-1 separation space 1501, the 1-2 separation space 1502, and the 1-3 separation space 1503 are arranged to be stacked radially outward.

The 1-1 separation space 1501 , the 1-2 separation space 1502 , and the 1-3 separation space 1503 are stacked and disposed radially outward of the first inner flue 100 , so that the first It is possible to minimize the transfer of heat of the inner flue 100 to the outside.

The 1-2 separation space 1502 is disposed outside the 1-1 separation space 1501, and the 1-3 separation space 1503 is disposed outside the 1-2 separation space 1502. do.

The radial spacing of the 1-3th spacing 1503 is longer than the radial spacing of the 1-1 spacing 1501 and the 1-3 spacing 1503, and through this, the heat insulating material 800 ) can be fully filled.

In the vertical direction, the 1-1 outer year (1511), the 1-2 outer year (1512), and the 1-3 outer year (1513) are formed to have different lengths.

In the vertical direction, the length of the 1-1 outer year 1511 is defined as L1, the length of the 1-2 outer year 1512 is defined as L2, and the 1-3 outer year 1513 is defined as L2. The length of is defined as L3, and the length of the first inner year 100 is defined as L0.

In this embodiment, the relationship L0 > L1 > L2 > L3 is formed. That is, the first outer year (150) is formed to be shorter in length as it is disposed radially outward in the first inner year (100).

Based on the horizontal center (O) of the first inner year 100, the 1-1 outer year 1511, the 1-2 outer year 1512, and the 1-3 outer year 1513 are in the vertical direction. is formed symmetrically.

The 1-1th spacer 160 , the 1-2th spacer 1160 , and the 1-3th spacer 2160 may also be disposed above and below the center O, respectively.

In this embodiment, since the inner flue and the outer flue are coupled through the spacers, the contact area for the coupling can be minimized, thereby minimizing the conduction of the heat of the inner flue to the outer flue.

A plurality of the 1-1 spacers 160 may be disposed in the circumferential direction of the first inner year 100 , and may be disposed above and below the center O, respectively.

A plurality of the 1-2 spacers 1160 may be disposed in the circumferential direction of the 1-1 outer year 1511 , and may be disposed above and below the center O, respectively.

A plurality of the 1-3 spacers 2160 may be disposed in the circumferential direction of the 1-2 first outer year 1512 , and may be disposed above and below the center O, respectively.

The second outer year (250) is formed in the same standard as the first outer year (150).

Specifically, the second outer year (250) is spaced apart from the second inner year (200) and is disposed to surround the outer circumferential surface of the second inner year (200) 2-1, the outer year (2511) and the second- The 2nd 2nd outer year 2512 spaced apart from the 1st outer year 2511 and arranged to surround the outer circumferential surface of the 2-1 outer year 2511, and the 2nd 2nd outer year 2512 spaced apart from the 2nd outer year 2512 -2 includes the 2-3th outer flute 2513 disposed to surround the outer circumferential surface of the outer flue 2512 .

A 2-1 separation space 2501 is formed between the second inner year 200 and the 2-1 outer year 2511, and the 2-1 outer year 2511 and the 2-2 outer year A 2-2 spaced apart space 2502 is formed between the 2512, and a 2-3 spaced space 2503 is formed between the 2-2 outer year 1512 and the 2-3 outer year 2513. is formed

In the present embodiment, the 2-1th separation space 2501 and the 2-3th separation space 2503 are empty spaces, and the heat insulating material 800 is arranged in the 2-2th separation space 1502 .

The 2-1th separation space 2501 , the 2-2th separation space 2502 , and the 2-3th separation space 2503 are stacked and disposed radially outward.

The 2-2th separation space 2502 is disposed outside the 2-1th separation space 2501 , and the 2-3th separation space 1503 is disposed outside the 2-2th separation space 2502 . do.

In the present embodiment, the 1-1 spaced space 1501, the 1-3 spaced space 1503, the 2-1th spaced space 2501, and the 2-3th spaced space 2503 have upper and lower openings. form, and air can flow.

The 1-2 separation space 1502 and the 2-2 separation space 2502 have a form in which at least a portion of an upper side surface or a lower side surface is blocked, and insulating materials 800 and 801 are filled. In this embodiment, the heat insulating material 801 is supported by the 1-2 spacer 1160 or the 2-2 spacer 1260 .

The radial spacing of the 2-3th spacing 2503 is longer than the radial spacing of the 2-1 spacing 2501 and the 2-3 spacing 2503, and through this, the insulating material 800 ) can be fully filled.

In the vertical direction, the 2-1 outer year 2511, the 2-2 outer year 2512, and the 2-3 outer year 2513 have different lengths, and the first outer year 150 is Since it is the same as , detailed description will be omitted.

The flue assembly according to this embodiment is coupled to the first inner year 100 and the 1-1 outer year 1511, and the first inner year 100 and the 1-1 outer year 1511 are The 1-1 spacer 160 spaced apart in the radial direction, coupled to the 1-1 outer year 1511 and the 1-2 outer year 1512, and the 1-1 outer year 1511 and A 1-2 spacer 1160 separating the 1-2 outer year 1512 in the radial direction, and the 1-2 outer year 1512 and the 1-3 outer year 1513 are coupled to each other, and the A 1-3 spacer 2160 for radially separating the 1-2 outer year 1512 and the 1-3 outer year 1513, and the second inner year 200 and the 2-1 outer year A 2-1 spacer 260 coupled to 2511 and radially spaced apart from the second inner year 200 and the 2-1 outer year 2511, and the 2-1 outer year 2511 ) and a 2-2 second spacer 1260 coupled to the 2-2 outer year 2512, and radially spaced apart from the 2-1 outer year 2511 and the 2-2 outer year 2512, and , coupled to the 2-2 outer year 2512 and the 2-3 outer year 2513, the 2-2 outer year 2512 and the 2-3 outer year 2513 are radially spaced apart The second to third spacers 2260 may be further included.

The 1-1 separation space 1501 is formed by the 1-1 spacer 160, and the 1-2 separation space 1502 is formed by the 1-2 spacer 1160, The 1-3 th separation space 1503 is formed by the 1-3 th spacer 2160 .

In this embodiment, the radial length of the 1-1 separation space 1501 is 25 mm, the radial length of the 1-2 separation space 1502 is 40 mm, and the 1-3 separation space 1503 is The radial length of is 25 mm.

Unlike this embodiment, the radial spacing of each of the separation spaces 1501, 1502, and 1503 may be 25 mm or 40 mm.

In this embodiment, since the insulating material 800 is disposed in at least one of the spaced spaces 1501, 1502, and 1503, the space between the spaced spaces 1501, 1502, and 1503 can be designed to be narrow. There are advantages.

In addition, the 2-1th spaced space 2501 is formed by the 2-1th spacer 260 , and the 2-2nd spaced space 2502 is formed by the 2-2nd spacer 1260 . and the 2-3th separation space 2503 is formed by the 2-3th spacer 2260 .

In this embodiment, the radial length of the 2-1th separation space 2501 is 25mm, the radial length of the 2-2th separation space 2502 is 40mm, and the 2-3th separation space 2503 is The radial length of is 25 mm.

The diameter of the first outer year 150 is formed to be larger than the diameter of the first inner year 100 , and the diameter of the second outer year 250 is formed to be larger than the diameter of the second inner year 200 . do.

The length of the first outer year 150 and the second outer year 250 may be shorter than that of the first inner year 100 and the second inner 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 inner flue 100 . One end and the other end of the second outer flue 250 may be disposed within the length of the second inner flue 200 .

The outer band 400 may be formed in a ring shape. The outer band 400 may be in close contact with the 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 .

In this embodiment, the outer band 400 covers the spaced boundaries of the 1-3 th outer year 1513 and the 2-3 th outer year 2513 .

The outer band 400 has one end (401, the lower end in this embodiment) in close contact with the first outer year (150, the 1-3 outer year in this embodiment), and the other end (402, the upper end in this embodiment) It is closely attached to the second outer year (250, the second and third outer year). The one end 401 is the longitudinal direction of the years 100 and 200 .

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 to each other through the band fastening members 405 and 406 .

The 1-1 spacer 160 separates the first inner flue 100 and the first outer flue 150 . The 1-1 spacer 160 may minimize conduction of heat from the first inner flue 100 to the first outer flue 150 .

The 2-1 spacer 260 also performs the same structure and function.

A plurality of 1-1 spacers 160 may be provided. The plurality of 1-1 spacers 160 may be radially disposed with respect to the central axis of the first inner year 100 .

A plurality of 2-1 spacers 260 may also be provided. The plurality of 2-1 spacers 260 may be radially disposed with respect to the central axis of the second inner flue 200 .

The 1-1 spacer 160 is disposed below the first one side flange 111 , and the 2-1 spacer 260 is disposed above the second other side flange 212 .

The 1-1 spacer 160 includes a first connecting part 161 coupled to the first inner flue 100 and a second connecting part 162 fixed to the 1-1 outer flue 1511, and a third connection part 163 connecting the first connection part 161 and the second connection part 162 .

The first connection part 161 and the second connection part 162 may be disposed to face each other, and the third connection part 163 may be disposed orthogonally to the first connection part 161 and the second connection part 162 . .

In this embodiment, the length of the third connecting portion 163 with respect to the radial direction is 25 mm.

In the radial direction, the first connection portion 161 may be disposed between the first band extension portion 320 and the first inner edge 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 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 1-2 spacer 1160 includes a first connection part 1161 coupled to the 1-1 outer opening 1511 and a second connection part 1162 fixed to the 1-2 outer opening 1512 . and a third connection part 1163 connecting the first connection part 1161 and the second connection part 1162 .

In this embodiment, the length of the third connecting portion 1163 with respect to the radial direction is 40 mm.

Similarly, the 1-3 th spacer 2160 includes a first connecting part 2161 coupled to the 1-2 th outer flue 1512 and a second connecting part 2162 fixed to the 1-3 th outer flue 1513 . ) and a third connection part 2163 connecting the first connection part 2161 and the second connection part 2162 .

In this embodiment, the length of the third connecting portion 2163 with respect to the radial direction is 25 mm.

Based on the 1-1 outer year 1511 , the second connection part 162 of the 1-1 spacer 160 and the first connection part 1161 of the 1-2 spacer 1160 face each other placed to see

The second connecting portion 162 of the 1-1 spacer 160 , the 1-1 outer flue 1511 , and the first connecting portion 1611 of the 1-2 spacer 1160 are fixed members 170 and 171 . can be combined at once. In this embodiment, the second connection part 162 of the 1-1 spacer 160, the 1-1 outer flue 1511, and the first connection part 1611 of the 1-2 spacer 1160 are fixed through welding. do. Unlike the present embodiment, they may be coupled through fastening members such as bolts and screws.

The second connection part 162 of the 1-1 spacer 160 , the 1-1 outer flue 1511 , and the first connection part 1611 of the 1-2 spacer 1160 are connected through the fixing member 171 . Since they can be combined at once, assembly is simple, and the three members can be combined to increase rigidity.

Similarly, the second connection part 1162 of the 1-2 spacer 1160, the 1-2 outer flue 1512, and the first connection part 2161 of the 1-3 spacer 2160 also attach the fixing member 172 to the first connection part 2161 of the spacer 2160. combined at once through

The second connection part 2162 of the 1-3 th spacer 2160 and the 1-3 th outer flue 1513 are also coupled through the fixing member 173 .

Based on the horizontal center O of the first inner year 100, the third connection part 163 of the 1-1 spacer 160 is disposed furthest from the center O, and the first The third connection part 2163 of the -3 spacer 2160 is disposed closest to each other, and the third connection part 1163 of the 1-2 spacer 1160 is disposed between the connection parts 163 and 2163 .

On the other hand, the 2-1 spacer 260 includes a first connecting part 261 coupled to the second inner flue 200 and a second connecting part 262 fixed to the second outer flue 250, and a third connection part 263 connecting the first connection part 261 and the second connection part 262 .

The first connection part 261 and the second connection part 262 may be disposed to face each other, and the third connection part 263 may be disposed orthogonally to the first connection part 261 and the second connection part 262 .

In the radial direction, the first connection part 261 may be disposed between the second band extension part 330 and the second inner edge 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 airtight performance can be further improved.

The second connection part 262 may be coupled to one end 252 of the second outer flue 250 .

The inner band 300 may be disposed between the second connection part 162 of the 1-1th spacer 160 and the second connection part 262 of the 2-1th spacer 260 .

The radially protruding length of the second connecting portion 162 of the 1-1 spacer 160 and the second connecting portion 262 of the 2-1 th spacer 260 is equal to or equal to the protruding length of the inner band 300 . It can be formed long.

The length of the outer band 400 in the vertical direction (in the longitudinal direction of the years) is the second connection part 162 of the 1-1 spacer 160 and the second connection part 262 of the 2-1 spacer 260 . It may be formed longer than the interval of.

The outer band 400 is disposed to simultaneously cover the second connection part 162 of the 1-1 spacer 160 , the second connection part 262 of the 2-1 th spacer 260 , and the inner band 300 . .

Hereinafter, since the 2-1th spacer 260 has the same structure as the 1-1th spacer 160 , a detailed description thereof will be 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 be formed into a ceramic form through a series of processes including alumina, silicon carbide, cordierite (MgO.Al2O3.SiO2), sillimanite (sillimanite group, 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 having an atomic number of 23 and may be added in a small amount to the composition to increase heat resistance and strength of the flue pipe. However, if it is added too much, it may cause microcracks in the coating layer during the coating process.

Titania is known to exist in the form of amorphous, anatase, brookite, rutile, etc. in nature as titanium oxide. In one embodiment, the titania may be amorphous, anatase, brookite, rutile, or a combination thereof, and preferably has 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, cobalt, etc., which may be added as a coating component inside the flue pipe, cause microcracks in the process of forming the ceramic coating layer and interfere with the coating layer formation. Compared to that, the heat resistance is reduced. Accordingly, 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, 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 cannot be maintained under high temperature, and warpage and cracks may occur.

Each component ratio of vanadium and titania may be 1 to 5:1 to 3 by weight, and preferably about 1.3:2.5 by weight.

When vanadium is added excessively than the above weight ratio, micro-cracks of the coating layer may occur and the lifespan of the coating layer may be significantly reduced.

Figure 7 is an exploded front sectional view of the first flue assembly according to the second embodiment of the present invention, Figure 8 is a partial front sectional view showing the state before the coupling of the first flue assembly according to the second embodiment of the present invention, 9 is a partial front sectional view showing the coupling structure of the first flue assembly according to the second embodiment of the present invention.

The flue assembly according to this embodiment is hollow in the longitudinal direction therein, one side flange 111 is formed on one side, the other side flange 112 is formed on the other side, the one side flange 111 and the other side flange A first inner flue 100 including an inner pipe 114 connecting the 112, and the first inner flue 100 are radially spaced apart from each other, and surround the outer circumferential surface of the first inner flue 100 The arranged 1-1 outer flute 1511 and the 1-1 outer flue 1511 are radially spaced apart, and the 1-1 outer flue 1511 is arranged to surround the outer peripheral surface of the first 1-2 The outer year (1512) and the 1-3 outer year (1513) spaced apart from the first and second outer year (1512) in the radial direction, and arranged to surround the outer circumferential surface of the first and second outer year (1512) include

In addition, the flue assembly according to this embodiment is one side (upper side in this embodiment) of the 1-1 outer year (1511), the 1-2 outer year (1512) and the 1-3 outer year (1513) a first spacer 1100 disposed in the It is disposed on the other side (lower side in this embodiment) of the outer year (1511), the 1-2 outer year (1512) and the 1-3 outer year (1513), and the 1-1 outer year (1511), the second It further includes a second spacer 2100 to which the 1-2 outer year 1512 and the 1-3 outer year 1513 are assembled.

In the flue assembly, the first spacer 1100 and the second spacer 2100 are assembled by 1-1 outer year 1511, 1-2 outer year 1512, and 1-3 outer year 1513. As a result, the 1-1 spaced space 1501 formed between the first inner year 100 and the 1-1 outer year 1511, the 1-1 outer year 1511 and the 1-2 outer year The 1-2 spaced space 1502 formed between the flues 1512, and the 1-3 spaced space 1503 formed between the 1-2 outer year 1512 and the 1-3 outer year 1513 this is formed

The 1-1 outer year 1511 , the 1-2 outer year 1512 , and the 1-3 outer year 1513 may be simultaneously assembled to the first spacer 1100 .

In addition, the 1-1 outer year 1511 , the 1-2 outer year 1512 , and the 1-3 outer year 1513 may be simultaneously assembled to the second spacer 2100 .

Since the 1-1 outer year 1511, the 1-2 outer year 1512, and the 1-3 outer year 1513 are simultaneously assembled to the first spacer 1100 and the second spacer 2100, It is possible to shorten the assembly time of a plurality of outer years.

In addition, the first spacer 1100 and the second spacer 2100 are vertically symmetrical with respect to the center O. As shown in FIG.

The 1-1 outer year (1511), the 1-2 outer year (1512), and the 1-3 outer year (1513) are each formed in a cylindrical shape.

The first spacer 1100 and the second spacer 1200 may be formed to surround the entire outer surface of the first inner flue 100 . In the present embodiment, the first spacer 1100 and the second spacer 1200 are formed in a shape to cover only a portion of the outer surface of the first flue 100 .

The first spacer 1100 is connected to the 1-1 spaced part 1110 coupled to the outer surface of the first inner flue 100 and the 1-1 spaced part 1110, and the The 1-1 inserting part 1170 into which one end (the upper end in this embodiment) of the 1-1 outer flue 1511 is inserted, and the 1-1 inserting part 1170 are connected to the first inner flue The first 1-2 spaced part 1120 extending in the radial direction of 100, and the first 1-2 spaced part 1120 are connected, and one end of the 1-2 outer flue 1512 (this embodiment) In the example, the first 1-2 insertion portion 1180 into which the upper end) is inserted, and the 1-3th interval extending in the radial direction of the first inner year 100 by being connected to the 1-2 insertion portion 1180 . The part 1130 and the 1-3 th insertion part (in this embodiment, the upper end) connected to the 1-3 spaced part 1130 and into which one end (the upper end in this embodiment) of the 1-3 th outer flue 1513 is inserted ( 1190).

The second spacer 1200 is connected to a 2-1 spaced part 1210 coupled to the outer surface of the first inner flue 100 and the 2-1 spaced part 1210, and is The 2-1 th insert 1270 into which the other end (the lower end in this embodiment) of the 1-1 outer duct 1511 is inserted, and the 2-1 th insert 1270 are connected to the first inner duct (100) The second 2-2 spaced apart portion 1220 extending in the radial direction, connected to the 2-2 spaced portion 1120, the other end of the 1-2 outer flue 1512 (this embodiment) In the example, the 2-2th insertion part 1280 into which the lower part) is inserted, and the 2-3th insertion part 1280 connected to the 2-2 insertion part 1280 and extending in the radial direction of the first inner year 100 is spaced apart. The part 1230 and the 2-3th inserting part ( 1290).

In this embodiment, the 1-1 spaced part 1110 is closely supported on one side flange 111 of the first inner flue 100 , and the 2-1 spaced part 1210 is the first inner flue 100 . It is supported in close contact with the other side flange 112 of the.

The first 1-1 separation portion 1110 is formed by bending a first separation wall 1111 that is in close contact with the outer surface of the first inner year 100, and the first separation month 1111, It includes a second separation wall 1112 connected to the 1-1 insertion part 1170, and a third separation wall 1115 bent in the first separation wall 1111 and in close contact with the one side flange 111. .

The first separation month 1111 is disposed in the longitudinal direction of the first inner year 100 and is fixed in close contact with the outer surface of the first inner year 100 . In this embodiment, the first separation month 1111 is welded and fixed to the first inner year 100 .

The first separation month 1111 and the second separation month 1112 are arranged to cross each other, and are arranged to be orthogonal to each other in this embodiment.

The second separation month 1112 is disposed to face outward in the radial direction of the first inner year 100 , and the 1-1 separation space 1501 is formed by the length of the second separation month 1112 . .

The second separation wall 1112 is formed by bending radially outward from the lower end of the first separation wall 1111 .

The third separation wall 1115 is formed by bending outwardly in the radial direction from the upper end of the first separation wall 1111 .

The third separation month 1115 and the second separation month 1112 may be disposed in parallel.

The third separation month 1115 and the second separation month 1112 may be disposed to face each other.

The length of the third separation month 1115 is shorter than the length of the second separation month 1112 . The length of the third separation month 1115 is equal to or shorter than the length of the one side flange 111 . That is, the third separation wall 1115 does not protrude outward in the radial direction of the one side flange 111 .

The third separation wall 1115 may be fixed by welding to one side flange 111 .

Since the third separation wall 1115 is supported by the one side flange 111, there is an effect that the installation position of the first spacer 1100 is aligned. In addition, by fixing at least one of the first spacer 1111 and the third spacer 1115 by welding, the installation position of the first spacer 1100 can be fixed, and thereafter, the 1-1 outer There is an advantage that the installation position can be aligned by inserting the year 1511, the 1-2 outer year 1512, and the 1-3 outer year 1513 in sequence.

That is, by welding the first separation month 1111 or the third separation month 1115, the 1-1 outer year (1511), the 1-2 outer year (1512), and the 1-3 outer year (1513) Since the installation position of the equipment is also automatically aligned, there is an advantage that the work difficulty of the operator can be greatly reduced.

The upper end of the 1-1 outer duct 1511 is inserted into the 1-1 inserting part 1170 and fitted and fixed.

The 1-1 insertion part 1170 includes a first inner fitting wall 1171 surrounding the inner surface (radial inner side) of the 1-1 outer year 1511, and the 1-1 outer year ( 1511) connecting the first outer fitting wall 1172 surrounding the outer surface (radial outer side), the first inner fitting wall 1171 and the first outer fitting wall 1172, and the 1-1 outer and a first endwall 1173 surrounding the top of the flue 1511 .

The first end wall 1173 is concavely formed from the lower side toward the upper side.

The lower end of the first inner fitting wall 1171 is connected to the outer end of the second separation wall 1112, and the first inner fitting wall 1171 is bent at the second separation wall 1112 to be integrally formed. do.

The first inner fitting wall 1171 and the first outer fitting wall 1172 form a length difference of P1. The lower end of the first outer fitting wall 1172 is disposed to extend further downward by P1 than the lower end of the first inner fitting wall 1171 .

The first inner fitting wall 1171 and the first outer fitting wall 1172 limit the radial movement of the 1-1 outer year 1511, and the first end wall 1173 is the 1-1 outer year (1511) to limit the longitudinal movement.

The first 1-2 spaced portion 1120 is formed by bending the first outer fitting wall 1172 radially outward. A 1-2 separation space 1502 is formed by the 1-2 separation part 1120 .

The 1-2 spaced part 1120 supports the 1-1 insertion part 1170 and the 1-2 insertion part 1180 .

The 1-2 insertion part 1180 has the same shape as the 1-1 insertion part 1170 .

The 1-2 insertion part 1180 includes a second inner fitting wall 1181 surrounding the inner surface (radial inner side) of the 1-2 outer year 1512, and the 1-2 outer year ( 1512), connecting the second outer fitting wall 1182 surrounding the outer surface (radial outer side), the second inner fitting wall 1181 and the second outer fitting wall 1182, and the 1-2 outer and a second endwall 1183 surrounding the top of the flue 1512 .

The second inner fitting wall 1181 and the second outer fitting wall 1182 form a length difference of P2. The lower end of the second outer fitting wall 1182 is disposed to extend further downward by P2 than the lower end of the second inner fitting wall 1181 .

The 1-3 spaced part 1130 is formed by bending outwardly in the radial direction in the second outer fitting wall 1182 . A 1-3 separation space 1503 is formed by the 1-3 separation part 1130 .

The 1-3 th spacing part 1130 supports the 1-3 th insertion part 1180 and the 1-3 th insertion part 1190 .

The 1-3 insertion part 1190 includes a third inner fitting wall 1191 surrounding the inner surface (radial inner side) of the 1-3 outer year 1513, and the 1-3 outer year ( 1513) connecting the third outer fitting wall 1192 surrounding the outer surface (radial outer side), the third inner fitting wall 1191 and the third outer fitting wall 1192, and the 1-3 outer and a third endwall 1193 surrounding the top of the flue 1513 .

The third inner fitting wall 1191 and the third outer fitting wall 1192 form a length difference of P3. The lower end of the third outer fitting wall 1192 than the lower end of the third inner fitting wall 1191 is arranged to extend further downward by P3.

Since the lower end 1195 of the third outer fitting wall 1192 is disposed to protrude further downward by P3, it is possible to grab the third outer fitting wall 1192 and pull it radially outward.

The 1-1 insertion part 1170 is formed with an interval of a thickness in which the 1-1 outer opening 1511 can be inserted, and the 1-2 insertion part 1180 is formed in the 1-2 outer opening ( A gap having a thickness through which the 1512 can be inserted is formed, and the 1-3 th insert 1190 has a thickness into which the 1-3 th outer flue 1513 can be inserted.

When the lower end 1195 of the third outer fitting wall 1192 is pulled radially outward, the first spacer 1100 is elastically deformed and the 1-1 insertion part 1170, the 1-2 insertion part ( 1180) and each interval of the 1-3 insertion part 1190 may be extended simultaneously, and through the extended interval, the 1-1 outer year 1511, the 1-2 outer year 1512, or the first -3 Since the outer flue 1513 can be easily inserted, the productivity of the operator can be improved.

In addition, when the external force applied to the lower end 1195 of the third outer fitting wall 1192 is removed, the first spacer 1100 is restored to its original state, the 1-1 outer year 1511, the 1-2 outer year It is possible to maximize the frictional force with the (1512) or the 1-3 outer year (1513).

The second spacer 1200 is vertically symmetrical with the first spacer 1100 .

The 2-1 separation portion 1210 is formed by bending a first separation wall 1211 that is in close contact with the outer surface of the first inner year 100, and the first separation month 1211, A second separation wall 1212 connected to the 2-1 insertion part 1270, and a third separation wall 1215 bent at the first separation wall 1211 and in close contact with the other side flange 112 are included. .

Similarly to the first spacer 1100 , when the lower end 1295 disposed in the 2-3-th insertion portion 1290 of the second spacer 1200 is pulled radially outward, the second spacer 1200 is elastically deformed. Each interval of the 2-1th insertion part 1270, the 2-2th insertion part 1280, and the 2-3th insertion part 1290 may be simultaneously expanded while The first outer year 1511, the 1-2 outer year 1512, or the 1-3 outer year 1513 can be easily inserted, thereby improving the productivity of the operator.

Hereinafter, since the configuration of the second spacer 1200 is symmetrical with each configuration of the first spacer 1100 , a detailed description thereof will be omitted. In addition, since the configuration of the second flue assembly 1002 is also the same as that of the first flue assembly 1001, a detailed description thereof will be omitted.

Hereinafter, since the rest of the configuration is similar to that of the first embodiment, a detailed description thereof will be omitted.

Figure 10 is a partial front sectional view showing the coupling structure of the first flue assembly according to the third embodiment of the present invention.

The flue assembly according to this embodiment is characterized in that the coupling force of the outer flue is improved by fastening and fixing the insertion part and the outer flue through the penetrating member 1300 .

Specifically, the penetrating member 1300 is formed in a “L” shape.

The penetrating member 1300 includes a first penetrating member 1301 installed in the 1-1 insertion part 1170 and a second penetrating member 1302 installed in the 1-2 inserting part 1180 . and a third penetrating member 1303 installed in the 1-3 insertion part 1190 .

Taking the first penetrating member 1301 installed in the 1-1 inserting part 1170 as an example, the penetrating member 1300 includes the first inner fitting wall 1171, the 1-1 outer flute 1511 and the second penetrating member 1300. 1 It is installed through the outer fitting wall (1172).

Through holes are formed in each of the first inner fitting wall 1171, the 1-1 outer fitting wall 1511 and the first outer fitting wall 1172, and the through member 1300 is inserted through the through hole do.

The penetrating member 1300 includes a through head 1310 in close contact with the first inner fitting wall 1171 and a through body 1320 connected to the through head 1310 and disposed to penetrate the through holes. include The through head 1310 and the through body 1320 are formed to be bent in the shape of "L".

A bending portion 1330 is formed by bending a portion of the short side of the through body 1320 .

The bending part 1330 disposed on the short side of the through body 1320 is exposed out of the first outer fitting wall 1172, and is bent by a worker to be in close contact with the first outer fitting wall 1172. ( 1330) is molded.

The through body 1320 is a through insertion portion 1322 disposed inside the through hole of the first inner fitting wall 1171, the 1-1 outer year 1511 and the first outer fitting wall 1172, and a bending part 1324 protruding outside the through hole.

The through head 1310 is supported on the upper side of the second spaced wall 1112 , and forms mutual engagement with the first inner fitting wall 1171 in the horizontal direction.

The through insertion portion 1322 forms a mutual engagement with the first inner fitting wall 1171 , the 1-1 outer fitting wall 1511 , and the first outer fitting wall 1172 .

The bending part 1324 forms a mutual engagement with the first outer fitting wall 1172 in the horizontal direction.

The penetrating member 1300 may be inserted through the 1-1 inserting part 1170 and the 1-1 outer opening 1511 to easily engage with each other in the insertion direction of the outer opening.

Since the through head 1310 and the bending part 1324 are in close contact with the inside and the outside of the 1-1 insertion part 1170, it is possible to prevent the gap between the 1-1 insertion part 1170 from widening, Through this, it is possible to prevent the 1-1 th outer flue 1511 from being separated from the 1-1 th insert part 1170 .

Hereinafter, since the rest of the configuration is similar to that of the second embodiment, a detailed description thereof will be omitted.

Those of ordinary skill in the art to which the present invention pertains will understand that the present invention may be embodied 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 restrictive. The scope of the present invention is indicated by the claims described below rather than the above detailed description, and all changes or modifications derived from the meaning and scope of the claims and their equivalent concepts are included in the scope of the present invention. should be interpreted

100: 1st inner year 111: one-sided flange
112: other side flange 114: inner pipe
115: 1st wave 150: 1st outer year
200: 2nd inner year 250: 2nd outer year
300: inner band 400: outer band
800: insulation

Claims (1)

Inner pipe ( 114) including the first inner year (100);
a 1-1 outer flute 1511 spaced apart from the first inner flue 100 in a radial direction and disposed to surround an outer circumferential surface of the first inner flue 100;
The 1-1 outer year (1511) and the radially spaced apart, the 1-1 outer year (1511) is arranged to surround the outer circumferential surface of the first 1-2 outer year (1512);
The 1-3 th outer flue 1513 spaced apart from the 1-2 outer flue 1512 in the radial direction, and disposed to surround the outer circumferential surface of the 1-2 outer flue 1512;
The 1-1 outer year (1511), the 1-2 outer year (1512) and the 1-3 outer year (1513) are disposed on one side, and the 1-1 outer year (1511), the 1- a first spacer 1100 in which the 2nd outer year 1512 and the 1-3 outer year 1513 are assembled at once;
It is disposed on the other side of the 1-1 outer year (1511), the 1-2 outer year (1512) and the 1-3 outer year (1513), and the 1-1 outer year (1511), the 1-th a second spacer 2100 in which the 2nd outer year 1512 and the 1-3 outer year 1513 are assembled at once;
a 1-1 separation space 1501 formed between the first inner flue 100 and the 1-1 outer flue 1511 by the first spacer 1100 and the second spacer 2100;
a first 1-2 spaced space 1502 formed between the 1-1 outer flue 1511 and the 1-2 outer flue 1512 by the first spacer 1100 and the second spacer 2100;
a 1-3 th spaced space 1503 formed between the 1-2 th outer flue 1512 and the 1-3 th outer flue 1513 by the first spacer 1100 and the second spacer 2100;
The first spacer 1100 is
a 1-1 spaced portion 1110 coupled to the outer surface of the first inner flue 100;
a 1-1 insertion part 1170 connected to the 1-1 spaced part 1110 and into which one end of the 1-1 outer flue 1511 is inserted;
a first 1-2 spaced part 1120 connected to the 1-1 insertion part 1170 and extending in a radial direction of the first inner flue 100;
a 1-2 insertion part 1180 connected to the 1-2 spaced part 1120 and into which one end of the 1-2 outer flue 1512 is inserted;
a 1-3 spaced part 1130 connected to the 1-2 insertion part 1180 and extending in a radial direction of the first inner flue 100;
The 1-3th insertion part 1190 is connected to the 1-3 spaced part 1130 and into which one end of the 1-3th outer flue 1513 is inserted; includes;
The 1-1 insertion part 1170 is,
A first inner fitting wall (1171) surrounding the inner surface of the 1-1 outer year (1511);
A first outer fitting wall (1172) surrounding the outer surface of the 1-1 outer year (1511);
A first end wall (1173) connecting the first inner fitting wall (1171) and the first outer fitting wall (1172) and surrounding the upper end of the 1-1 outer fitting wall (1511);
The 1-2 insertion part 1180 is,
A second inner fitting wall (1181) surrounding the inner surface of the 1-2 outer year (1512);
A second outer fitting wall (1182) surrounding the outer surface (radial outer side) of the 1-2 outer year (1512);
A second end wall (1183) connecting the second inner fitting wall (1181) and the second outer fitting wall (1182) and surrounding the upper end of the 1-2 outer year (1512);
The 1-3 insertion part 1190 is,
a third inner fitting wall (1191) surrounding the inner surface of the 1-3 outer year (1513);
A third outer fitting wall (1192) surrounding the outer surface of the 1-3 outer year (1513);
A third end wall (1193) connecting the third inner fitting wall (1191) and the third outer fitting wall (1192) and surrounding the upper end of the 1-3 outer fitting wall (1513);
A first penetrating member installed to pass through the 1-1 inserting part 1170 and the 1-1 outer opening 1511, and forming mutual engagement in the longitudinal direction of the 1-1 outer opening 1511 (1301);
A second penetrating member installed to pass through the 1-2 insertion part 1180 and the 1-2 outer flute 1512, and forming a mutual engagement with respect to the longitudinal direction of the 1-2 outer flute 1512 (1302);
A third penetrating member installed to pass through the 1-3 inserting part 1190 and the 1-3 outer flute 1513 and forming mutual engagement in the longitudinal direction of the 1-3 outer flute 1513 (1303); including;
The first penetrating member 1301,
a through head 1310 in close contact with the first inner fitting wall 1171;
The through-insertion part 1322 connected to the through-head 1310 and disposed inside the through-holes of the first inner fitting wall 1171 , the 1-1 outer year 1511 and the first outer fitting wall 1172 . );
It protrudes to the outside of the through hole, is bent at the through insertion part 1322, is in close contact with the first outer fitting wall 1172, and forms a mutual engagement with respect to the longitudinal direction of the first outer fitting wall 1172 Including; bending part 1324;
The 1-1 spaced part 1110 is,
A first separation month 1111 in close contact with the outer surface of the first inner year (100); a second spacing 1112 formed by bending the first spacing 1111 and connected to the 1-1 insertion part 1170; A third separation wall (1115) that is bent in the first separation wall (1111) and is in close contact with the one side flange (111); includes;
The first separation month 1111 and the second separation month 1112 are arranged orthogonally,
The second separation wall 1112 is formed by bending outwardly in the radial direction at the lower end of the first separation wall 1111,
The first separation month 1111 is disposed in the longitudinal direction of the first inner year 100, and fixed by welding to the outer surface of the first inner year 100,
The second separation month 1112 is disposed facing outward in the radial direction of the first inner year (100),
The 1-1 spaced space 1501 is formed by the length of the second spaced moon 1112,
The third separation wall 1115 is formed by bending outwardly in the radial direction from the upper end of the first separation month 1111,
A flue assembly in which the length of the third spaced month 1115 is equal to or shorter than the length of the one side flange 111 , and the third spaced month 1115 is welded and fixed to the one side flange 111 .

Images