KR20220049659A - Sealing method for chimney with nonflammable fiber O-ring gasket - Google Patents

Abstract

The present invention relates to a chimney connection structure suitable for high temperatures. The technical gist of the present invention is to insert an incombustible O-ring fibrous packing between flanges of joints which are connected to each other during assembling between chimneys, enable an incombustible structure to be achieved with airtightness for the joint, and bend a certain part in an upward and downward direction to form a double-folding flange (bottom cut) structure at the outer edge of a frame of the flange (bottom cut). Compared to the previous chimney connection method, the structural strength of a chimney pipe is improved (airtightness and reinforcement performance improved). A contact surface with the non-combustible O-ring fiber material packing is significantly increased when the double-folding flange (bottom cut) form is assembled and fixed by pressurization (compression) by a V-band. Therefore, the structure can have greatly improved airtightness and can withstand high temperatures.

Description

Flue connection structure suitable for high temperature {Sealing method for chimney with nonflammable fiber O-ring gasket}

The present invention allows a non-combustible O-ring fiber packing to be inserted between the flanges of the joints (referred to as 'undercuts' in the industry) that come into contact with each other during assembly between the flutes, which is a non-combustible structure with airtightness for the joint. is formed so as to be formed, and in particular, at the outer end of the edge of the flange (undercut) of the present application, a portion is bent in the up-down direction to form a double-folding flange (undercut) structure, which is the previous year connection method (undercut contact) In addition to improving the structural strength of the flue straight pipe (improving airtightness and reinforcing performance) compared to the method of filling and connecting the V-band after applying liquid silicone to the end) The contact surface with the non-combustible O-ring fiber packing increases significantly when assembling and fixing under pressure (compression bonding) by the V-band. If a solid non-combustible O-ring fiber packing is placed in between and the V-band is filled, tension is installed by elastic force and the contact area of the packing is maximized) so that airtightness is greatly improved and at the same time, it is designed to withstand high temperatures. It relates to a flue connection structure suitable for high temperature, characterized in that.

In other words, in the present invention, in connecting the unit flue in the form of a hollow tube, the non-combustible O-ring fiber packing is attracted between the flanges (aka, undercut) of the flue fastened with a V-band, but the non-combustible O- Ring fiber packing is a form in which an adhesive is bonded to the inside of the V-band in advance, and only the process of filling the V-band to the flange blocks leakage or water leakage that occurs between the joints (fireproof silicone is applied between the V-band and the flange) ), but to be able to withstand high temperature and heat smoothly without unreasonableness, which is easy and convenient manufacturing and installation work process is easy, but it is formed to secure strong airtightness and non-combustibility, and the quality of the year is improved due to excellent airtight reliability and constructability. Characterized by excellent.

In general, a flue system is constructed in order to discharge combustion gas (exhaust gas) generated from a boiler room (or machine room) in a multi-family house such as an apartment, a large mart or a hospital, an industrial factory, etc.

Accordingly, in the prior art, when combustion gas (exhaust gas) is generated by the operation of the boiler 7 in a building, the corresponding combustion gas (exhaust gas) is exhausted to the outside of the building through the duct assemblies 1 and 2 (FIG. 3). reference)

In addition, Figure 4 shows the configuration of the vertical duct assembly (2) of the duct assembly (1,2) of Figure 3, the duct assembly (2) of the upper and lower (or front, rear) of the inner pipe ( 2b, 2b') and a first connecting band 2e used to fasten the flanges 2b-1 of the inner tubes 2b and 2b' are configured.

Accordingly, the outer tube (2a, 2a') surrounding the outer circumferential surface of the inner tube (2b, 2b') and installed at a predetermined interval outside the inner tube (2b, 2b'), and the outer tube (2a, 2a') It is configured to include a connection band (2d) installed to fasten the.

At this time, spacers 2c and 2c' are provided between the outer tubes 2a and 2a' and the inner tubes 2b and 2b' to support them and maintain a constant distance therebetween.

Accordingly, an air layer of about 25 mm is formed between the outer diameter OD and the inner diameter ID by the spacers 2c and 2c'.

In other words, the duct assembly 2 forms a kind of double tube composed of the outer tubes 2a and 2a' and the inner tubes 2b and 2b'.

On the other hand, in a typical diesel generator and gas turbine generator, the temperature of the exhaust gas is discharged at 300° C. to 600° C. or more, and the pressure inside the duct assemblies 2 and 6 is increased to emphasize airtightness.

Accordingly, in the conventional duct assembly, as shown in FIG. 5, after filling the heat-resistant sealant 2f in the first connection band 2e, which is a V-band, so that the airtightness is maintained, and then the V-band is fastened, It is formed to finish the joint joint.

However, this sealing treatment causes serious deterioration of airtightness such as oil leakage and water leakage when the heat-resistant sealant is solidified.

In addition, in the conventional duct assembly, a large amount of condensed water is generated due to the temperature deviation of the exhaust gas flowing therein. In the case of a horizontal pipe, leakage occurs at the flange joint, causing contamination of the machine room, and overall safety accidents There is a problem that causes it.

That is, in the prior art, there is a gap C between the flanges 2b-1, and in the assembled state, when vibration, external shock, or operation of the equipment is ignited, air expansion in the tube is generated and the inside of the groove of the first connection band 2e A gap occurs in the

When this phenomenon is repeatedly performed, the adhesive force of the heat-resistant sealant 2f is reduced, and the heat-resistant sealant 2f is solidified and crumbled by the high temperature exhaust gas, thereby reducing airtight performance. At this time, leakage of exhaust gas and leakage of condensed water occur.

As such, in the past, there was room for improvement due to the functional side effects and lack of technology when installing the flue (the conventional flue connection method connects the V-band in a form in which semi-solid silicone is applied to the contact end of the undercut), etc. There are many complaints about the leakage of high-temperature exhaust gas and leakage of condensate.

That is, in the case of a conventional flue installation, smoke or toxic gas generated during combustion flows into the building, and civil complaints about this are frequently occurring.

This is because of the detriment of allowing the construction to be completed without the process of precisely testing the airtightness of the flue during construction or until completion.

1. Republic of Korea Patent Publication No. 10-0942183 (registered on Feb. 5, 2010)

The present invention is to solve the above-mentioned problem, and the technical gist of the technical point is to adhere and fix the solid non-combustible O-ring fiber material packing determined by the standard to the inner groove of the V-band, then additionally apply fireproof silicone, 2 It is related to the method of attaching and fastening the V-band to the middle bending flange (bottom clipper), which inserts the non-combustible O-ring fiber packing between the flanges of the joints that are connected to each other when assembling between years. , which aims to provide a non-combustible structure with airtightness for the joint.

Accordingly, the present invention bends a certain portion at the outer edge of the flange (undercut) in the up-down direction to form a double-folding flange (undercut) structure, which is a conventional flue connection method (at the contact end of the undercut). The purpose is to provide a way to improve the structural strength of the flue straight pipe (improving airtightness and reinforcing performance) compared to the method of filling and connecting the V-band after liquid silicone is applied.

In addition, in the present invention, the contact surface with the non-combustible O-ring fiber packing is remarkably increased (V-band inner groove and If the solid non-combustible O-ring fiber packing is placed between the inner space of the rhombus shape due to the contact of the double-folded undercut and the V-band is filled, tension is installed by the elastic force and the contact area of the packing is maximized. ), so that airtightness is greatly improved, and at the same time, the purpose is to provide a product that can withstand high temperatures.

Such, in the present invention, in connecting the unit flue in the form of a hollow tube, between the joints by applying a non-combustible O-ring fiber packing and fire-resistant silicone between the flanges (aka, lower cut) of the flue fastened with a V-band. It is designed to prevent leakage or water leakage, but to withstand high temperatures and high temperatures smoothly without unreasonableness. The purpose of this is to provide a product with excellent quality due to excellent workability.

In order to achieve the above object, in the present invention, a non-combustible O-ring fiber packing 200 is inserted between each flange (110: aka 'bottom cut') to which a plurality of unit flues 100 are connected to each other. In order to ensure non-combustibility against high temperature, the non-combustible O-ring fiber packing 200 prevents leakage and water leakage while compressing the press-type structure between the flanges 110 when tightening by the V-band 300. It is formed to ensure airtightness and non-combustibility, including

Accordingly, the flange 110 has an inclined double bent part 120 that is widened in a '/' shape or a '\' shape at the end of the outer edge, so that a '<' shape based on the joint seam (C) between the years. Alternatively, it is formed to form a '>'-shaped V-zone for mounting packing (130: a non-combustible O-ring fiber packing is placed inside the V-zone).

In other words, the flange 110 of the year has a bent shape ('V' shape, 'Y' shape: a strong resistance to the force that is cut toward the center of the circle when the flange 110 is arranged side by side with the neighboring flange) ) is formed.

In addition, the non-combustible O-ring fiber packing 200 is adhesively fixed to the inner groove 310 of the V-band 300 and then formed so that the outer surface is coated by the fire-resistant silicone 400 .

As described above, the present invention inserts a non-combustible O-ring fiber material packing between the flanges of the joint that are abutted and connected during assembly between the years, which is formed to form a non-combustible structure with airtightness for the joint. In particular, at the outer edge of the flange (undercut) of the present application, a portion is bent in the up-down direction to form a double-folding flange (undercut) structure. In addition to improving the airtightness and reinforcing performance, the double-folded flange (undercut) shape ensures that the contact surface with the non-combustible O-ring fiber packing is improved when assembling and fixing under pressure (compression) by the V-band. It is formed to significantly increase airtightness, and at the same time has the effect of being able to withstand high temperatures.

In other words, in the present invention, when connecting a unit flue in the form of a hollow tube, a non-combustible O-ring fiber packing and fireproof silicone are applied between the flanges (bottoms) of the flue fastened with a V-band to generate between the joints. It is designed to prevent leakage or water leakage, but to withstand high temperature and heat without unreasonableness. This is excellent, and there is an effect of excellent flue quality.

In addition, the present invention is to improve the work experience by standardizing the non-combustible O-ring fiber material packing, which is due to the inexperienced skill level of the operator. It has the effect of improving the underlying problem of different).

Accordingly, the present invention has an effect of allowing smooth operation in a form that is easy to attach to the flange and does not easily fall off even without an adhesive.

In addition, the present invention has the effect of keeping the airtightness constant by absorbing and responding to the partial lifting phenomenon caused by the non-uniformity of the flange or the spatial and temporal deformation.

1 is an exemplary view showing a flue system to which a flue connection structure according to the present invention is applied;
Figure 2 is an exemplary view showing the flue connection structure of Figure 1;
3 to 5 are exemplary views showing a conventional flue connection structure.

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

First, as shown in Figures 1 to 2, the present invention is a non-combustible O-ring fiber material packing between each flange (110: aka 'bottom cut') where a plurality of unit flues 100 are connected to each other. (200) is inserted so that it is basically formed to ensure non-combustibility against high temperature.

Accordingly, the non-combustible O-ring fiber packing 200 is compressed between the flanges 110 when the V-band 300 is tightened to ensure airtightness and non-combustibility including prevention of leakage and leakage. is formed

Accordingly, the flange 110 has an inclined double bent portion 120 that is opened in a '/' shape or a '\' shape at the end of the outer edge.

These double bends are V-zone for packing seating in the form of '<' or '>' based on the joint seam (C) between the years (130: so that non-combustible O-ring fiber packing is placed inside the V-zone) is formed to achieve

In other words, the flange 110 of the year has a bent shape ('V' shape, 'Y' shape: a strong resistance to the force that is cut toward the center of the circle when the flange 110 is arranged side by side with the neighboring flange) ) is formed.

At this time, the 'Y'-shaped flange 110 has a characteristic in that the force of the cylinder is reinforced by the mechanical characteristics of the bent in the form of being bent outward once more in the 'V'-shaped structure.

This has the advantage of being able to set the thickness of the flange (undercut) or the cylindrical body to be thin. That is, it is because the bearing capacity (force) of the flange (bottom cutting) is improved.

In addition, the non-combustible O-ring fiber packing 200 is adhesively fixed to the inner groove 310 of the V-band 300 and then formed so that the outer surface is coated by the fire-resistant silicone 400 .

That is, when the V-band is fastened to the flange, the V-band is installed by rotating the V-band based on the flange. At this time, the overlapping part of the starting part and the ending part becomes a very weak part when applying the sealing, which is to accurately apply the silicone. Because it is difficult to work with.

However, since the present invention is a structure that is easily and accurately inserted between the flanges (bottom cutters), the above-described weak sealing problem is improved.

In other words, the conventional flue connection method is a type in which liquid sealant is applied to the contact end of the flange (undercut), and it is a connection method that assembles it through a V-band. It causes water leakage (condensation water generated by the temperature difference of the flue inner wall).

In order to improve this, the present invention is to achieve a seated fixation while the non-combustible O-ring fiber packing corresponds to the middle of the flange (undercutting), which is that the non-combustible O-ring fiber packing pre-bonded to the V-band is attached to the flange (bottom). The bar is installed simply between the mowers), which has the characteristics of greatly improving the compatibility and workability.

According to the present invention, the non-combustible O-ring fiber material packing manufactured for each pipe diameter is formed to withstand a high temperature year without difficulty, and is formed so that the application of fire-resistant silicone can completely block the leakage leakage.

The present invention is not limited to the specific preferred embodiments described above, and various modifications are possible by anyone with ordinary skill in the art to which the invention pertains without departing from the gist of the invention as claimed in the claims. Of course, such modifications are intended to be within the scope of the claims.

100 ... Year 110 ... Flange
120 ... double bend 130 ... V zone
200 ... non-combustible O-ring fiber packing 300 ... V-band
310 ... inner groove 400 ... fire-resistant silicone

Claims (3)

A non-combustible O-ring fiber material packing 200 is inserted between each flange 110 where a plurality of unit-type flues 100 are connected to each other to ensure non-combustibility against high temperatures, The non-combustible O-ring fiber material packing 200 ensures airtightness and non-combustibility including prevention of leaks and leaks while the press-type structure is pressed between the flanges 110 when the V-band 300 is in close contact. Flue connection structure suitable for high temperature. According to claim 1, wherein the flange 110 has an inclined double bent part 120 that is widened in a '/' shape or a '\' shape at the end of the outer edge, so that the joint line between the years is formed based on the joint line (C). A flue connection structure suitable for high temperatures, characterized in that it forms a '<' shape or '>' type of packing mounting V zone (130: a non-combustible O-ring fiber packing is placed inside the V zone). According to claim 1, wherein the non-combustible O-ring fiber packing 200 is adhesively fixed to the inner groove 310 of the V-band 300, characterized in that the outer surface is coated by fire-resistant silicone (400). Flue connection structure suitable for high temperature.

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