KR200290627Y1 - joint assembles of flue and multi layer flue using the same - Google Patents

Abstract

The present invention relates to a flexible joint and multiple flue tubes using the same. More specifically, the present invention relates to a flue junction and a multi-combustion pipe using the same, which can effectively prevent the leakage of heat caused by the exhaust gas of a high temperature passing through the flue (pipe) of a generator or a boiler. In the pipe joint for discharging the gas, the inner tube formed so that the rear surface of the flange portion consisting of the hook-shaped head and the vertical portion contact with each other; And an inverted U-shaped band formed in contact with the head of the flange portion.

Description

Joint assembles of flue and multi layer flue using the same

The present invention relates to a flue junction and a multiple flue tube using the same. More specifically, a flue junction and an apparatus using the same that can effectively prevent the leakage of heat by the exhaust gas of a high temperature via the flue (association) of the generator or boiler It relates to a multiple flue tube.

Industrial generators, boilers or domestic boilers are burning raw materials such as coal and petroleum to obtain the necessary power, and the exhaust gas generated by the combustion is emitted to the chimney.

The pipe for discharging such exhaust gas into the chimney is commonly referred to as flue. Such flue is usually produced in the form of a double pipe (household boiler, industrial boiler) or triple pipe (for industrial generator) according to the amount of combustion and use, and the material is made of ceramic coated stainless steel or iron plate. That is, the exhaust gas passing through the inside of the flue has a very high temperature (approximately 450-500 ° C in the case of generator flue) so that heat from exhaust gas or the like does not escape around the flue so as to form a multi-pipe structure. The year of is being used.

In the case of such a year, it is necessary to connect and connect a plurality of divided flue according to the installation place (usually the machine room of the basement or the middle of the building) and the size of the plate of various materials. The heat of the leak may be leaked to the outside as it is, therefore, the treatment of the joint is very important especially during the manufacture and installation of the flue. This is because when the treatment of the joint is inadequate, there is a risk of a safety accident due to the heat leaking around the joint, and in particular, when the leakage accumulates, the durability of the flue itself may be degraded and a large accident may occur.

FIG. 1A shows a partial view of a triple pipe type commonly used for generator flue, and FIG. 1B shows, in front view, a junction 100 of the innermost inner tube 10 of a flue, in particular a triple pipe.

That is, the connection joints 100 of both inner tubes have the vertical flange portion of the sealant 12 in a state in which the vertical flange portions 11 having the end portions of the inner tube 10 are vertically connected to each other as shown in FIG. 1B. The sealant is treated in such a manner as to wrap the sealant with the inverted U-shaped band 13, and the inverted U-shaped band is fixed by coupling the ends thereof with a connector such as a bolt.

In other words, by tightly sealing the connection joint by the sealant so that the hot heat does not leak to the outside. In addition, by forming the intermediate tube 20 and the outer tube 30 with a predetermined interval around the inner tube as shown in Figure 1a to increase the thermal insulation performance so that the surface temperature of the outer tube is below the limited reference value, usually 60-70 The limit is ° C, which requires the premise that the sealant can keep the joint tight and prevent heat, and in practice the sealant will be cured by subsequent heat and eventually A crack occurs and the temperature of the outer pipe of the actual flue becomes a temperature (approximately 100-120 ° C) far exceeding the limit value, and because of this phenomenon, it controls the leaking heat of the flue pipe by covering insulation material around the outer pipe. There have been attempts to do this, but this is not a fundamental solution and there is an urgent need for a way to improve it.

The present invention is to solve the above problems,

An object of the present invention is to provide a means for preventing the phenomenon that the hot air leaks from the flue to the outside by modifying the shape of the flange portion of the flue joint.

Another object of the present invention is to provide a means to effectively control the heat leaking from the flue to prevent safety accidents and durability degradation due to the heat leak of the flue.

1A and 1B are front views of a conventional flue junction and a flue junction.

2a to 2d are embodiments of a front view of the flue junction of the present invention.

3a and 3b is a specific example of the structure of the connection joint of the multi-conducting pipe of the present invention.

<Description of the symbols for the main parts of the drawings>

12: sealant

200,300,400,500: Year joint

220,330,430,540: Inverted U-shaped band

320,520: Gasket 420,530: Insulation Cannon

The present invention is a seal joint, which is formed by curing at a temperature above a certain temperature (300 ° C), such as a material such as a sealant, and causing cracks, and even turning into ash, causing the heat of the flue to leak from the outside. In order to fundamentally solve the problems caused by the use of the tantrant material, the core technical matter is to exert the function of the soft joint more efficiently by changing the shape of the soft joint without using the same material as the sealant. An embodiment of the present invention will be described in detail with reference to FIGS. 2 and 3.

First, it examines the year joint, and looks at the multiple flue pipe and its manufacturing method using the same.

<Year joint part>

The year junction of the present invention can be divided into four specific examples.

This flue joint is the same as the flange portion consisting of the hook portion formed in the end portion of the inner tube of the hook portion and the vertical portion formed perpendicular to the head portion, the gasket is used only to prevent hot air leakage And it is divided according to the use of the insulation cloth, and looks at the above four specific examples in detail.

Year joint 1 (specific example 1)

The flue joint 1 (200) is connected to the inner end of the flange 210 is formed so that the rear end of the flange portion 211 consisting of a hook-shaped head portion (211a) and the vertical portion (211b); And an inverted U-shaped band 220 formed in contact with the head of the flange portion, and will be described with reference to FIG. 2A.

The inner tube 210 is a tube forming the innermost of the year, the material is made of a stainless steel or iron plate with a ceramic coating in a circular cross-section, the end of the head portion (211a) and the head of the whole hook shape as a whole; It is formed of the flange part 211 which consists of the vertical part 211b formed perpendicular to the part.

That is, the connection joint 1 is a state in which the rear surface A of the vertical portion of the flange portion 211 is brought into contact with each other, but the inverted U-shaped band 220 is in contact with the hook-shaped head portion B on the flange portion. It is installed to Therefore, heat is blocked from the inner tube by the inverted U-shaped band in contact with the head.

Conventionally, since the heat is blocked using a material such as sealant, it is hard to be cured when it is subjected to high temperature heat, and it becomes difficult to effectively block the high temperature heat in the end, and the reverse U-shaped band is simply a vertical plan of the inner tube It only serves to hold the branch, but this design does not use a material such as sealant, so that the problem of using a material such as sealant does not occur. The role of the magnetic band is to be completely mechanically in close contact with the head of the hook of the present invention to block the heat of the inner tube (wedge action) to effectively block the heat of the inner tube without the use of additional materials. It does not use the same material as the sealant, so the yearly production cost is low. And the effect of reduction, the advantage that the repair and maintenance ease.

In order to express the wedge action of the inverted U-shaped band as described above, as shown in FIG. 2A, the contact portion B of the inverted U-shaped band and the head of the flange portion may be formed. It is smaller than the inner width D of the head of the inverted U-shaped band, but should be formed so as to be tightly contacted with the head of the flange part inserted into the head of the inverted U-shaped band.

Year joint 2 (specific example 2)

The flue joint 2 (300) includes an inner tube (310) formed such that the rear surface of the flange portion (311) composed of a hook-shaped head portion (311a) and a vertical portion (311b) are in contact with each other; Leak prevention gasket 320 formed between the rear surface of the flange portion; Inverted U-shaped band 330 formed in contact with the head of the flange; includes, and will be described with reference to Figure 2b.

The flue joint 2 is the same as using the flange portion and the inverted U-shaped band formed at the end of the inner tube like the flue joint 1, except that the gasket 320 is additionally used between the vertical portions 311b of the flange portion. Is different.

In particular, the gasket 320 may use a variety of materials suitable for the temperature of the inner tube, the thickness and size of the gasket 320 may be appropriately selected according to the flue joint. This has the advantage that the use of additional gaskets prevents more efficient heat leakage.

Year joint 3 (example 3)

The flue joint 3 (400) includes an internal exhaust pipe (410) formed so that the rear surfaces of the flange portion (411) including the hook-shaped head portion (411a) and the vertical portion (411b) are in contact with each other; A heat insulation cloth 420 formed to surround the head of the flange portion; And an inverted U-shaped band 430 formed in contact with the insulation cloth.

The flue joint 3 is the same as using the flange portion and the inverted U-shaped band formed at the end of the inner tube as in the flue joint 1, but only between the head and the inverted U-shaped band of the flange additionally insulated cloth 420 It is different in that it is used.

Insulation cloth 420 is a heat insulating material in the form of a fabric having excellent heat insulating performance, such as aramid fiber, silica fiber, glass fiber, etc. Unlike the conventional sealant, there is no phenomenon that cracks or ashes change even at high temperature heat, so that effective heat blocking is more effective. Possible, such a thermal insulation cloth is mechanically fixed to the head by the inverted U-shaped band has the advantage that it is not easy to install, construction because no additional connecting hardware. In the present invention, since the inverted U-shaped band is in contact with the flange head and is capable of blocking the heat by the wedge action, the flue joint 3 also adopts this method, but additional insulation is added therebetween.

Year joint 4 (specific example 4)

The flue joint 4 (500) includes an internal exhaust pipe (510) formed so that the rear surfaces of the flange portion (511) including the hook-shaped head portion (511a) and the vertical portion (511b) are in contact with each other; A leakage preventing gasket 520 formed between the rear surface of the flange portion; A heat insulation cloth 530 formed to surround the head of the flange portion; And an inverted U-shaped band 540 formed on and in contact with the insulation cloth.

The flue joint 4 is the same as using the flange portion and the inverted U-shaped band formed at the end of the inner tube as in the flue joint 1, except that the insulation cloth 530 is additionally provided between the head of the flange and the inverted U-shaped band. It is different in that it uses an additional gasket 520 between the vertical portions of the flange portion of the inner tube.

<Multiple pipe using flue joint>

FIG. 3A shows a state in which the flue pipe 600 is manufactured in a triple tube method used in an industrial generator using the flue joints 200, 300, 400, and 500 of the present invention in detail. In other words, the innermost inner tube 610 is treated with each other with the joint 1, and then the center tube 620 and the outer tube 630 are sequentially formed using the connecting hardware 640. The connecting hardware is used in the joint portion, it is preferable to maintain the shape of each tube by using a plurality of spacers between the inner tube, the central tube and the outer tube.

Furthermore, FIG. 3B is a partial detailed view illustrating a state in which the flue pipe 700 is manufactured in a double pipe method used for industrial and domestic boilers using the flue joints 200, 300, 400, and 500 of the present invention. The inner tube 710 and the outer tube 720 are manufactured using the connecting hardware 730 in the same manner as the triple tube except that the intermediate tube is not installed in the triple flue tube of FIG. 3A.

<Flue pipe installation method using multiple flue pipes>

The method for installing a multiple flue pipe made of a double pipe or a triple pipe may include forming a joint of an inner tube as a flue joint of any one of the flue joints 1 to 4; Forming a plurality of pipes larger than the diameter of the inner pipe around the flue joint as a connecting iron; Closing the junction of the larger diameter tube than the inner tube with a connection band 800;

In order to connect the multiple flue pipes to install the flue, whether triple or double pipes, the inner pipe is manufactured once the joints of the flue are first formed in the manner of the flue joints 1 to 4,

Using a plurality of connecting hardware to form a multi-pipe pipe by forming a central pipe and / or outer pipe as shown in Figure 3a and 3b.

In addition, it is preferable to insert an L-shaped spacer between the inner tube and the central tube and between the central tube and the outer tube to maintain the original shape even at a high temperature.

After forming the inner tube, the connecting junction of the inner tube, the central tube and the outer tube in sequence, the surface of the outermost tube is finished using the connection band 800 to complete the installation of the multiple flue tube.

The present invention does not use a material such as sealant, which is susceptible to high temperature, and adopts a mechanical connection (wedge action) of the inverted U-shaped band to effectively prevent high temperature leakage of flue even at high temperatures, and additionally includes insulation cloth and gasket. By using a material that does not change its material properties even at high temperatures, it is possible to prevent safety accidents due to leakage of the heat of the year, and easy maintenance and maintenance after installing the year.

Claims (5)

In pipe joints that emit hot exhaust gases, such as generators or boilers, An inner tube formed such that a rear surface of the flange portion including a hook-shaped head and a vertical portion is in contact with each other; An inverted U-shaped band formed in contact with the head of the flange portion; Flue junction, characterized in that it comprises a. In pipe joints that emit hot exhaust gases, such as generators or boilers, An inner tube formed such that a rear surface of the flange portion including a hook-shaped head and a vertical portion is in contact with each other; A gasket formed between the rear surface of the flange portion; An inverted U-shaped band formed in contact with the head of the flange portion; Flue junction, characterized in that it comprises a. In pipe joints that emit hot exhaust gases, such as generators or boilers, An inner tube formed such that a rear surface of the flange portion including a hook-shaped head and a vertical portion is in contact with each other; An insulation cloth formed to surround the head of the flange portion; And An inverted U-shaped band formed in contact with the insulation cloth on the head of the flange; Flue junction, characterized in that it comprises a. In pipe joints that emit hot exhaust gases, such as generators or boilers, An inner tube formed such that a rear surface of the flange portion including a hook-shaped head and a vertical portion is in contact with each other; A gasket formed between the rear surface of the flange portion; An insulation cloth formed to surround the head of the flange portion; And, An inverted U-shaped band formed in contact with the insulation cloth on the head of the flange; Flue junction, characterized in that it comprises a. The multiple flue tube according to any one of claims 1 to 4, wherein a tube such as an intermediate tube and an outer tube having a larger diameter than the inner tube of the flue joint is further formed by connecting hardware.