KR20130136425A - Fire stopping spiral tube and fire stopping system comprising the spiral tube - Google Patents

Abstract

The present invention relates to a flame arrest system comprising a flame retardant thermally expandable tube wound in a spiral form. The flame arrest system of the present invention can be applied to openings formed in a partition structure such as a wall. When applying the flame blocking system of the present invention, in the case of a fire or the like can be blocked so that the flame and toxic gases do not diffuse through the opening, thereby reducing the damage to people and property.

Description

FIRE STOPPING SPIRAL TUBE AND FIRE STOPPING SYSTEM COMPRISING THE SPIRAL TUBE}

The present invention relates to a flame shielding system comprising a spiral shielding spiral tube and a spiral tube.

The present invention relates to a flame shielding system comprising a flame shielding spiral tube and a flame shielding spiral tube having flame retardancy and thermal expansion and spirally curled. The flame shield system according to the present invention is applicable to openings, cable transits, etc., formed in a partition structure such as a wall.

In the event of a fire, there can be serious damage to life and property. In view of the damage caused by fire, not only the direct damage caused by the fire, but also the toxic gas generated by the combustion of the combustible material and the loss of life due to the asphyxiation due to its rapid diffusion are problematic.

The movement of flames and toxic gases occurs mainly through the corridors, doors, openings in bulkheads, and in gaps in other building internal structures. Openings in the partition wall may be formed to extend the wires, cables or pipes within the building through the partition or transit from one space to another. For example, inside a ship, a myriad of pipes, wires and cables are complex and technically interconnected. They are interconnected through openings in the septum or transit.

Conventionally, the space left after the cables and pipes have passed through the openings has been left as is, or simply filled with ordinary filling foam or silicone sealants. As a result, when a fire occurs, there is a problem that the flame and toxic gas easily diffuses through the openings because the general material used to fill the empty space in the openings is easily burned or melted, thereby increasing the fire damage.

In the case of openings through which the wires and cables pass, the sheath of the wires and cables easily melts or burns away, creating much more space in the openings. As a result, there was a problem that the spread of flame and gas is accelerated.

In order to solve this problem, the prior art has applied a method of filling the openings in the partition walls with flame retardant filling means, in particular thermally expandable flame retardant filling means.

As an example of such a flame arrest system, WO 2006/097290 discloses a fire resistant transit system. 1 illustrates a transit system. As shown in FIG. 1, the transit system 50 provides for the opening of an opening in which the pipe 51 is not located to fill an opening formed to extend one or more pipes 51 from the first space to the second space. It has a structure in which the thermally expandable rubber member 52 is provided in the space. In other words, the opening has a pipe occupying portion occupied by the pipe 51 and a pipeless portion 55 not occupied by the pipe. The pipeless portion 55 is provided with a thermally expandable rubber member 52. In this case, the outer portion 53 of the pipe 51 is not surrounded by only one rubber member of the rubber members.

However, the rubber member used in the above-described flame arrest system generates some gas in a fire. In addition, in the process of filling the opening with the rubber member, since the rubber members have the same diameter, empty space may be created in the opening when using the rubber member of the same type. Therefore, in order to reduce the creation of empty spaces, various types of rubber members having different diameters are required. This means that there is a difficulty of separately preparing rubber members having various diameters. In addition, since the pipe 51 is not completely enclosed by the rubber member, even if the rubber member expands in a fire, there is a limit in that the rubber member completely presses around the pipe. Therefore, there is a problem that toxic gas flows through the space around the pipe.

The present invention provides a flame shielding system that allows the linear type of materials such as wires, cables, or pipes to pass easily through an opening formed in a partition structure such as a wall, while effectively sealing the opening in a fire. To provide.

In addition, the present invention provides a means for filling an opening formed by a flame retardant thermally expandable material so that it can be easily applied to a flame arrest system.

Regarding the filling means of the opening, the present invention provides a flame stopping spiral tube having a structure in which a heat-expandable flame retardant sheet is rolled in the form of a spiral tube.

It is also an object of the present invention to provide a flame blocking system comprising a spiral tube for flame blocking.

In addition, the present invention, by applying a flame blocking spiral tube to the flame shielding system to expand the flame blocking spiral tube itself when the temperature rises due to the fire, thereby more thoroughly sealing the opening formed in the partition wall to perfectly flame and toxic gas Block it.

In order to achieve the above object, the present invention provides a flame shielding spiral tube having a structure in which the flame-retardant sheet is rolled in the form of a spiral tube.

According to one embodiment of the present invention, the spiral tube shape can be formed by cutting a sheet formed in a cylindrical shape in the longitudinal direction and rolling it up.

According to one embodiment of the present invention, the flame retardant sheet includes a thermally expandable filling means and a binder resin. If necessary, the flame retardant sheet may include flame retardant filling means, endothermic filling means, fire resistant filling means, and a plasticizer.

According to the invention, the thermally expandable filling means is flame retardant and expands when the temperature rises above a predetermined temperature level. For example, such thermally expandable filling means can be selected from the group consisting of expandable graphite, mica and vermiculite.

According to one embodiment of the present invention, the thermally expandable filling means has an expansion ratio of 10 to 350 times.

According to one embodiment of the present invention, the flame-retardant sheet can expand 300% to 2,000% within 5 minutes of the temperature rising from room temperature to 400 ° C. According to another embodiment of the present invention, the flame retardant sheet can expand from 300% to 1,000% within 3 minutes of the temperature rising from room temperature to 400 ° C.

According to one embodiment of the present invention, the binder resin may be selected from the group consisting of polyethylene resin, ethylene vinyl acetate, polyurethane resin and rubber.

The present invention also provides a flame barrier system configured by filling a flame barrier spiral tube in an opening formed through a wall structure divided into two zones.

As used herein, the term "wall" refers to a structure that divides a room into two zones. Walls include generally known wall structures as well as ceiling or floor structures for interlayer separation. In the present invention, the wall includes a partition or the like that partially divides one space.

In the flame arrest system according to the invention, a generally linear material penetrates through an opening formed in the wall structure. According to one embodiment of the present invention, the linear material is in a state surrounded by a flame shielding spiral tube.

Since the spiral of the flame stopping spiral tube of the present invention can be adjusted in such a way that the spiral is pinched or loosened, the tube is useful for easily filling the empty space. In addition, the flame blocking spiral tube of the present invention can easily fix the linear material as each linear material of various sizes passes through the flame blocking spiral tube. Even if the linear material additionally penetrates the flame blocking spiral tube after construction, the repair work can be easily performed.

Also, if an opening is formed in the bottom and penetrates the bottom, leakage of water through the space between the cables or lines is a problem. By using the spiral tube according to the present invention, the space between the cables or lines can be uniformly adjusted to easily fill and close the spaces with a sealant that prevents leakage of water.

According to one embodiment of the invention, the linear material may be one or more of telecommunication cables, wires and pipes.

In a flame arrest system, portions of the openings extending to the wall or bottom may be sealed.

The present invention also comprises the steps of preparing a spiral tube for flame blocking; Forming an opening through the wall structure dividing into two zones; And filling the opening by using the fire stopping spiral tube.

According to one embodiment of the invention, the construction method may further comprise the step of allowing the linear material to pass through the opening.

Specifically, the linear material may be penetrated through the opening after the opening is formed. On the other hand, if the linear material has already penetrated the wall structure before forming the opening, it is possible to form the opening while positioning the linear material in the opening in the step of forming the opening.

According to one embodiment of the invention, the linear material is wrapped by a flame shielding spiral tube. In this case, the linear material is one or more of telecommunication cables, wires and pipes.

According to one embodiment of the invention, the construction method may further comprise sealing a portion of the opening extending to the wall surface.

In the case of applying the fire stopping spiral tube and the flame blocking system using the tube according to the present invention, cables, wires, and pipes penetrating through openings of partition walls such as various buildings and ships can be effectively fixed, supported, and connected.

The present invention, by applying a flame blocking spiral tube to the flame shielding system to expand the flame blocking spiral tube itself when the temperature rises due to the fire, thereby more thoroughly sealing the opening formed in the partition wall to completely block the flame and toxic gases do. Since it effectively blocks flames and gases, it is possible to reduce the risk of death from suffocation caused by smoke. And the spreading rate of the flame can be reduced.

In addition, since the flame shielding system of the present invention uses a spiral tube, the equipment and material cost can be low, and thus can be constructed by a simple construction technique. Therefore, construction time and cost can be minimized.

According to the present invention, it is possible to easily pass a linear material such as an electric wire, a cable or a pipe through an opening formed in a partition structure such as a wall, and to obtain a flame blocking system that can effectively seal the opening in a fire. have.

In addition, according to the present invention, the filling means of the opening formed by the flame-retardant thermally expandable material can be obtained so that it can be easily applied to the flame shielding system.

With regard to the filling means of the opening, according to the present invention, it is possible to obtain a flame blocking spiral tube having a structure in which a heat-expandable flame retardant sheet is rolled in the form of a spiral tube.

In addition, according to the present invention it is possible to obtain a flame blocking system comprising a spiral tube for flame blocking.

In addition, according to the present invention, by applying a flame shielding spiral tube to the flame shielding system to expand the flame blocking spiral tube itself when the temperature rises due to the fire, thereby more thoroughly sealing the opening formed in the partition wall to prevent flame and toxic gas You can block it completely.

1 is a cross-sectional view of one embodiment of a conventional flame arrest system.
Figure 2 shows a flame blocking spiral tube according to an embodiment of the present invention.
Figure 3 is a view showing a spiral portion spread by applying an external force to the flame blocking spiral tube according to FIG.
4 is a view showing the cross section and the radius of the flame blocking spiral tube according to FIG.
5A to 5C are views showing a state in which a linear material is wrapped by a flame blocking spiral tube according to an embodiment of the present invention.
Figure 6 shows a flame arrest system installed in accordance with one embodiment of the present invention.
FIG. 7 is a view showing the sealed state of the end portion of the opening 20 extending to the wall in the flame blocking system shown in FIG.
8 is a cross-sectional view of a flame arrest system according to an embodiment of the present invention.

With reference to the accompanying drawings will be described in more detail the fire stopping spiral tube, the flame blocking system using the tube, and the construction method of the system. However, this description is, in fact, merely illustrative for the purpose of understanding the invention and is not intended to limit the scope of the invention to this exemplary description.

Figure 2 shows a flame blocking spiral tube 100 according to an embodiment of the present invention. Figure 3 shows the spiral portion unfolded by applying external force to the flame blocking spiral tube according to FIG.

The fire stopping spiral tube of the present invention has a structure in which a flame retardant sheet is rolled in the form of a spiral tube. A flame barrier spiral tube is used as a filling means for openings of a flame retardant thermally expandable material and is applied to the flame shield system of the present invention.

Figure 4 shows the inner radius (R1) and outer radius (R2) of the spiral in the cross section of the flame blocking spiral tube according to an embodiment of the present invention. R1 and R2 may vary depending on the degree of rolling the spiral tube. As seen above, since the radius of the flame blocking spiral tube according to the present invention can be freely adjusted, the flame blocking spiral tube is effectively used to fill the opening.

5a to 5c show that a fire stopping spiral tube is wrapped in a linear material having a different diameter. Since the fire stopping spiral tube of the present invention has a spiral shape, it is possible to wrap a linear material having various diameters. For large diameter linear materials, loosen or stretch the spirals of the flame barrier spiral tubes to wrap the large linear materials. In the case of linear materials with small diameters, the spirals of the flame barrier spiral tubes are closed to sufficiently wrap the linear materials with small diameters.

The fire stopping spiral tube of the present invention is not only when the linear material penetrates the opening 20 after the opening 20 is formed in the wall for installing the flame blocking system, but also the linear material has already penetrated the wall. It can be easily applied even in the state.

In the case where the linear material has already penetrated the wall structure before forming the opening 20, the opening may be formed while the linear material is positioned in the opening at the step of forming the opening. Thereafter, the spiral of the flame blocking spiral tube can be unwrapped to wrap the linear material and then the spiral can be wrapped to wrap the linear material into the flame blocking spiral tube. The remaining space of the opening can be filled with a flame blocking spiral tube.

FIG. 6 shows a flame arrest system installed in accordance with one embodiment of the present invention wherein a flame arrestor spiral tube is located in the opening 20 of the wall 30 and a linear material such as wires, cables, and pipes It passes through the opening in a state surrounded by a flame shielding spiral tube.

Hereinafter, the actual flame blocking mechanism according to the physical characteristics of the components used in the present invention will be described.

First, when a fire occurs and a flame is generated, and the ambient temperature is rapidly increased, the thermally expandable filling means of the spiral tube 100 for blocking the fire is expanded. As a result, the flame blocking spiral tube 100 expands, thereby filling the space of the opening 20 at a predetermined pressure by the expanded volume. Thus, the movement of the flame and gas generated from the fire is blocked through the partition wall.

Even if the sheaths of cables, wires, and pipes melt due to the high heat generated from the fire, the thermally expandable filling means expands to fill the melted sheaths of the volume space in the flame arrest system, i.e. the wires. As a result, the movement of flame and toxic gases through the opening 20 is almost completely blocked.

The flame-retardant sheet for forming the fire stopping spiral tube according to the present invention includes a thermally expandable filling means and a binder resin. If desired, the flame retardant sheet may comprise additional filling means such as flame retardant filling means, heat conduction inhibitors, fire resistant filling means, and plasticizers.

First, the thermally expandable filling means is a factor that directly contributes to the thermal expansion of the fire stopping spiral tube according to the present invention. Thermally expandable filling means are flame retardant and expand when the temperature rises above a predetermined temperature level. Examples of thermally expandable filling means include thermally expandable graphite, mica, and vermiculite.

The greater the expansion rate of the thermally expandable filling means, the better the effect. After the thermally expandable filling means expands, a char layer is formed to maintain flame retardant performance. However, if the expansion ratio is too large, the carbonized layer cannot be fixed and the flame blocking performance may be negatively affected. In addition, the expansion of the thermally expandable filling means should be achieved during a general fire disaster. Therefore, thermally expandable filling means capable of expanding about 10 to 300 times at a temperature above 200 ° C. can be easily applied to the present invention. More specifically, any thermally expandable filling means that expands by approximately 50 to 300 times at a temperature of 200 ° C. to 1,000 ° C. can be effectively applied to the flame arrest system of the present invention.

The amount of thermally expandable filling means should be sufficient to allow the expansion rate of the resulting fire stopping spiral tube to achieve the desired purpose. According to one embodiment of the invention, the amount of thermally expandable filling means may be from 10% to 40% by weight, based on the presumed weight percentage of the flame blocking spiral tube.

On the other hand, the binder resin is a component that becomes the base material of the flame blocking spiral tube, and serves as a binder for bonding the thermally expandable filling means. In the case of binder resins, any binder resin component may be used in an amount sufficient to bond the thermally expandable filling means and to allow the flame retardant sheet forming the flame blocking spiral tube and the flame blocking spiral tube to retain their shape. Can be used.

Preferably, the binder resin is not highly flammable at high temperatures, produces less gas or soot in the case of combustion or pyrolysis, and does not negatively affect the thermal expansion of the thermally expandable filling means. Examples of binder resins include polyethylene resins, ethylene vinyl acetate, polyacrylic resins, polyurethane resins, and rubber. These binder resins may be used alone or mixed for use.

On the other hand, the blending amount of each of the above binder resins may vary depending on the intended use. In the present invention, the binder resin is used in an amount of about 40% by weight to 65% by weight.

On the other hand, in order to produce a flame shielding spiral tube, as necessary, flame retardant, heat resistant inhibitor, fire resistant filler and plasticizer, as well as flame retardant, heat resistant filler, crosslinking agent and antifoaming agent may be additionally used. .

The production of a flame shielding spiral tube according to the present invention will be explained by the examples provided below.

Example  1 to Example  4

A spiral tube was prepared at the composition ratio provided in Table 1 below.

Binder resin, thermally expandable filling means, flame retardant filling means, heat conduction inhibitor, refractory filling means and additives are mixed in a container. Then, a flame retardant sheet in the form of a cylinder tube was produced using an extruder. The tube is cut longitudinally and rolled at a processing temperature of 60 ° C. to 70 ° C. As a result, a spiral tube as shown in FIG. 2 was produced.

Test Example  1-expansion rate test

In order to measure the free expansion ratio of the fire stopping spiral tube prepared in Examples 1 to 4, a specimen (diameter: 44 mm, thickness: 4 mm) was prepared and placed in a furnace. The expansion rate was calculated while raising the temperature from room temperature to 400 ° C. for 3 minutes. As a result, it was confirmed that the expansion ratio of the fire stopping spiral tube prepared in Examples 1 to 4 was 800%, 1,050%, 1,200% and 850%, respectively.

It was confirmed that the flame blocking spiral tube of the present invention can achieve a large expansion performance with an expansion ratio of about 1000% for a short period of 3 minutes when the temperature rises from room temperature to 400 ° C.

Examples 5-8

A flame shielding system was prepared using the flame shielding spiral tubes prepared in Examples 1 to 4. Referring to Figures 6 to 8 will be described how to create a flame shield system.

An opening 20 is formed through the wall 30 on which the flame arrest system 10 of the present invention is to be installed. Next, the flame blocking spiral tube prepared in Examples 1 to 4 was cut to have a length corresponding to the thickness of the wall. For the convenience of work, the opening portion 20 was provided with a frame 21.

Thereafter, a flame shielding spiral tube is provided in the opening 20 of the wall 30 which surrounds the linear material 200, for example, two wires, three communication cables, and two pipes through the wall openings. It was. The remaining space of the opening was filled with a flame shielding spiral tube, which enclosed nothing. The cable was placed in a flame shield spiral tube. 6 shows the complete installation of the flame arrest system.

Then, the part of the opening part extended to a wall surface was sealed and the opening part of a wall surface was closed. In the case of sealing, the finishing was easily performed using a silicone sealant surface treatment agent.

7 shows the state of the flame arrest system according to FIG. 6 after sealing the end of the opening extending into the wall. 8 is a cross-sectional view of the flame arrest system according to the embodiment of FIG. 7.

Test Example 2-Flame Blocking Test

The actual flame barrier test was performed on the flame barrier system prepared in Examples 5-8. A flame blocking test was performed by applying a flame to one surface of the flame blocking system shown in FIGS. 6 to 8. Specifically, as shown in FIGS. 6 to 8, the degree of flame blocking was observed while applying 500 ° C. heat to one side of the wall where the flame blocking system was installed. As a result of the IMO 754.18 test, it was confirmed that the temperature on the opposite side of the heated side was maintained at 50 ° C to 70 ° C. As a result of the flame blocking test, it was confirmed that the flame blocking system of the present invention achieved excellent flame blocking performance. In the specific tests performed, the flame barrier test confirmed that the opening was completely blocked.

Many substitutions, changes, and variations to the described invention are possible by those skilled in the art within the technical gist of the invention. Accordingly, the scope of the invention is not limited to the embodiments described herein and the accompanying drawings.

100: Spiral tube for flame blocking

Claims (15)

A flame stopping spiral tube having a structure in which a flame-retardant sheet containing thermally expandable filling means and a binder resin is rolled in a spiral tube form. The spiral tube of claim 1, wherein the spiral tube form is formed by cutting a sheet formed in a cylinder form in a longitudinal direction and then rolling it. 2. The fire stopping spiral tube according to claim 1, wherein the thermally expandable filling means is selected from the group consisting of expandable graphite, mica and vermiculite. The method of claim 1, wherein the thermally expandable filling means is a flame blocking spiral tube of 10 to 350 times the expansion rate. The flame-retardant spiral tube of claim 1, wherein the flame-retardant sheet is capable of expanding 300% to 2,000% within 5 minutes while the temperature rises from room temperature to 400 ° C. 7. The flame blocking spiral tube according to claim 1, wherein the binder resin is selected from the group consisting of polyethylene resin, ethylene vinyl acetate, polyacrylic resin, polyurethane resin, and rubber. A flame barrier system, comprising a flame barrier spiral tube according to claim 1 filled in an opening formed in a wall structure divided into two zones. 8. The flame shield system of claim 7, wherein a linear material passes through the opening, the linear material being wrapped by the flame blocking spiral tube. The flame arrester of claim 8, wherein the linear material is at least one of a telecommunication cable, an electric wire, and a pipe. 8. The flame arrest system of claim 7 wherein the portion of the opening extending to the wall is sealed. Preparing a flame blocking spiral tube according to claim 1;
Forming an opening through the wall structure dividing into two zones; And
Filling the opening using the flame blocking spiral tube
Construction method of the flame blocking system comprising a. 12. The method of claim 11, wherein a linear material passes through the opening and the linear material is wrapped by the flame blocking spiral tube. The flame arrester of claim 12, wherein a linear material penetrates the wall structure before forming the opening, and in the forming of the opening, the opening is formed while the linear material is positioned in the opening. Construction method of the system. 13. The method of claim 12, wherein the linear material is at least one of telecommunication cables, wires, and pipes. 12. The method of claim 11,
Sealing a portion of the opening that extends to the wall or floor
Construction method of the flame shielding system further comprising.

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