KR102247898B1 - Fireproof section piping penetration hole fireproof filling integrated sleeve assembly structure - Google Patents

Abstract

The present invention relates to a fireproof section piping penetration hole fireproof filling integrated sleeve assembly structure and, more particularly, to an improved fireproof section piping penetration hole fireproof filling integrated sleeve assembly structure, which prevents the spread of flame as well as smoke by high thermal expansion in the event of a fire and minimizes human casualties. The present invention includes a sleeve.

Description

Fireproof section piping penetration hole fireproof filling integrated sleeve assembly structure}

The present invention relates to a fire-resistant filling integrated sleeve assembly structure for a fire protection section pipe penetration hole, and more particularly, an improved fire protection section that minimizes human damage by blocking the spread of smoke as well as flames due to high heat-resistant expansion in the event of a fire. It relates to a fire-resistant filling integrated sleeve assembly structure of a pipe through hole.

In general, when constructing a multi-storey building, a plastic through sleeve is installed on the formwork and concrete is poured in order to form a through hole when placing a slab in the part through which the pipe connecting the floor to the floor is penetrated.

In addition, the through sleeve installed in the formwork and buried in the slab by the poured concrete is installed with an inner diameter larger than the tube diameter of the upright pipe connecting the floor to the floor, so that even if the upright pipe is bent later, it passes through the through sleeve. Make it possible to construct.

However, there is a problem in that a gap is generated due to a difference in diameter between the through sleeve and the upright pipe passing through the through sleeve, which becomes a path for fire or smoke when a fire occurs, and damage caused by the fire may spread.

Due to this, in recent years, it is legally compulsory to install fire-resistant materials in the penetration part of the pipe that can spread fire in the event of a fire, and various fire-resistant materials are used to block the gap, and there are two purposes: construction of a standing pipe and prevention of fire spread. The gap is filled with heat-expandable refractory fillers that accumulate.

For example, as shown in Figure 1, the through-sleeve body 11 and the through-sleeve body 11 having the inserting portion of the refractory filler 20 are fastened to the upper end, and the pipe fixture 40 is fastened to the upper inner circumferential surface by screwing. A through sleeve (10) consisting of a guide fastener (12) having a threaded thread so as to be possible; Consisting of two pieces of guide shaft 41a and a guide arm piece 41b, which are threaded on the outer circumferential surface so as to be rotatably coupled to the inside of the guide fastener 12 of the through sleeve for the upright tube, which is fastened to the guide fastener of the through sleeve, Each upper end of the male piece (41a) and the arm piece (41b) has a guide 41 extended so that the pipe installed inwardly does not get caught in the corresponding position, and is fastened to the guide 41, and the clamp arm piece 42a and the clamp male piece A pipe fixture 40 comprising a clamp 42 formed of 42b and coupled to one side of each piece by a hinge integrally formed at one side of each piece, and a clamp 42 formed to be fastened by a bolt and a nut at the other end; A refractory filler 20 fastened to a lower end of the through-sleeve body and a support plate 30 fastened to a lower end of the through-sleeve body to prevent separation of the fire-resistant filler 20; The guide and the clamp are fastened, but there is an example consisting of two locking pins 43 formed with a groove in the center so that the end is narrowed when inserted so as not to be disassembled, and the end is restored after insertion, and a locking part is formed at one end of the guide.

However, since the fire-resistant filler-integrated through sleeve as described above is composed of two different shapes such as a through sleeve body and a guide fastener, the manufacturing cost is high and the process is complicated, and productivity is reduced.

In addition, since the refractory filler insertion part of the through sleeve body extends toward the inner circumference of the through sleeve, when heavy and sharp pipes such as steel pipes are constructed with a riser pipe diameter, the refractory filler insert is damaged by touching the insertion part, or in severe cases, it is combined with the refractory filler insert. There is also a problem that the fire-resistant filling material is separated.

In addition, since the guide fastener constituting the through sleeve and the guide fastened to the guide fastener are rotated by screwing, the installed pipe is severely skewed to one side and adheres to the inner circumferential surface of the through sleeve. There is also a problem that it takes a lot of construction because it is difficult to fasten.

Korean Patent Registration No. 10-2155906 (2020.09.08.),'Fireproof filler integrated through sleeve device'

The present invention was created to solve the above-described problems in consideration of all the problems described above, and improved fire protection partition pipe penetration hole to minimize human damage by blocking the spread of smoke as well as flames due to high heat-resistant expansion when a fire occurs. Its main purpose is to provide a fire-resistant filling integrated sleeve assembly structure.

The present invention is a means for achieving the above object, and is installed in a portion through which the fire tube 100 connecting the floor and the floor of a multi-storey building penetrates to increase fire resistance while sealing the outer diameter of the fire tube 100 It includes a sleeve 200; The fireproof tube 100 is in the form of a double tube having an inner tube 110 and an exterior 120, and a foamable refractory filler 130 is filled between the inner tube 110 and the exterior 120, and the inner tube 110 is It is formed to be thinner than the exterior 120; The sleeve 200 is fitted to the outside of the fire tube 100 to seal the concrete structure between the slab 300 and the fire tube 100, and a chamber 210 is formed inside the sleeve 200, , The chamber 210 is injected with a fire-resistant foaming agent 220 that is foamed in case of fire, and the inner diameter of the sleeve 200 on the chamber 210 side is formed thinner than the outer diameter of the fire-retardant pipe penetration hole. In the structural assembly structure;
Both the inner tube 110 and the outer tube 120 are molded of polyvinyl chloride (PVC);
The refractory filler 130 includes 30% by weight of processing aid, 10% by weight of epoxy resin, 10% by weight of clay powder, 30% by weight of Exandable Graphite, 10% by weight of glycine, and Tricresyl phosphate (Tricresyl Phosphate) is made of 10% by weight,
In the processing aid, 1 kg of sodium dodecyl sulfate, 1 kg of ammonium persulfate, and 8 kg of 2-ethylhexyl prop-2-enoate were added to a reaction tank, followed by primary polymerization, and then 1 kg of sodium octane sulfonate was added to the first polymer again, and 30 minutes At the elapsed time point, 2 kg of formaldehyde salt of sulfoxylate was added to terminate the polymerization reaction;
In the case of sealing between the slab 300 and the fire tube 100 by inserting the sleeve 200 to the outside of the fire tube 100, one cross section between the fire tube 100 and the sleeve has a triangular shape or a wedge shape. A circular frame-shaped fixed airtight rubber ring 400 is provided on either or both of the upper and lower sides of the sleeve 200, respectively, and installed to perform a fixed function and an airtight function,
The fireproof foaming agent 220 includes 5% by weight of zinc phosphate, 15% by weight of liquid hydrocarbon, 15% by weight of mullite, 25% by weight of aluminum hydroxide, 20% by weight of epoxy resin, 10% by weight of glycine, and the rest of tricresyl It provides a fire-resistant filling integrated sleeve assembly structure, characterized in that consisting of phosphate through the fire-resistant section pipe.

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According to the present invention, when a fire occurs, it is possible to obtain an effect of preventing the spread of smoke as well as flames due to high heat-resistant expansion, thereby minimizing personal injury.

1 is an exemplary cross-sectional view showing an installation structure of a fireproof pipe and a sleeve in a conventional pipe through-hole.
2 is an exemplary cross-sectional view of a fireproof filled integrated fireproof tube used in the fireproof section pipe penetration hole according to the present invention.
3 is an exemplary view showing an installation structure of a fireproof filled integrated fireproof tube and a sleeve used in a fireproof section pipe penetration hole according to the present invention, and an enlarged cross-sectional view of the sleeve.

Hereinafter, a preferred embodiment according to the present invention will be described in more detail with reference to the accompanying drawings. It will be understood that the accompanying drawings are symbolically illustrated to facilitate the description of the technical idea of the invention.

The fire-resistant filling integrated sleeve assembly structure for the fire-resistant section pipe penetration hole according to the present invention does not require a fire-resistant filler material and satisfies the fire-resistant filling structure even if only a fire-resistant pipe is installed, making it convenient to install, increasing fire resistance as well as smoke blocking capability in case of fire. It has been improved to be able to.

First, the structure of the fire tube according to the present invention will be described.

As shown in Figure 2, the fireproof pipe 100 according to the present invention is made of a double pipe structure.

That is, when the inner tube 110 and the exterior 120 are molded while being extruded in a two-die extrusion method, the refractory filler 130 is filled between them to form a double tube structure, but the refractory filler 130 is inserted. By having it, it is not necessary to separately install a fireproof material while piping as in the past, so that the convenience in construction is remarkably increased.

At this time, the thickness of the inner tube 110 should be formed to be thinner than the thickness of the outer tube 120, so that when the refractory filler 130 is foamed, it bursts into the fire tube 100 to seal the interior.

In addition, both the inner tube 110 and the outer tube 120 are formed of polyvinyl chloride (PVC).

In addition, the refractory filler 130 includes 30% by weight of processing aid, 10% by weight of epoxy resin, 10% by weight of clay powder, 30% by weight of Exandable Graphite, 10% by weight of glycine, and tricresyl phosphate. (Tricresyl Phosphate) consists of 10% by weight.

In this case, the processing aid starts the first polymerization reaction by adding an emulsifier and a reaction initiator to the monomers of the reaction tank, and 1 kg of sodium octane sulfonate was added to the obtained first polymerization reaction product. 2 kg of formaldehyde salt was added to terminate the polymerization reaction, and then the obtained one was used.

At this time, the emulsifier is sodium dodecyl sulfate, the reaction initiator is ammonium persulfate, the monomer is 2-ethylhexyl prop-2-enoate, and the mixing ratio is 1 kg, 1 kg, and 8 kg of the emulsifier, the reaction initiator, and the monomer, respectively. do.

In addition, the 2-ethylhexyl prop-2-enoate (molecular weight 184.28, solubility 100mg/100L, Tg -70°C, boiling point 125°C, melting point -90°C) is the softness of the inner core of the polymerized polymer particles. ) To increase swelling in case of fire and enhance self-extinguishing.

In addition, here, sodium octane sulfonate is a monomer that induces emulsion polymerization to react uniformly and accurately, and sulfoxylic acid formaldehyde salt is a reaction terminator.

In this way, by dividing two types of monomers and putting them into the reaction tank, the polymerization reaction of the polymer main chain can be uniformly induced, and it is effective to maximize quality uniformity by reducing the quality change of the polymer completed as much as possible. In particular, it is advantageous to increase heat dissipation characteristics and heat resistance.

In addition, the epoxy resin and clay powder are mixed with each other when the refractory filler 130 explodes while foaming, forming an adhesive film, and sealing the inside of the inner tube 110 to prevent smoke and flame from spreading and increase self-extinguishing properties.

In another embodiment, if necessary, the thickness of the inner tube 110 is increased and the thickness of the exterior 120 is made thin, so that when a fire occurs when the fireproof filler 130 is foamed and exploded, the periphery of the exterior can be sealed. There is also. In another embodiment, if necessary, both the inner tube 110 and the outer tube 120 may have a thin thickness. Here, the reason for reducing the thickness is the same as described above, so it will not be described repeatedly.

In addition, glycine reacts with tricresyl phosphate while being decomposed by the high temperature generated in a fire to form a carbonized layer, and the carbonized layer is foamed and bursts by gas generated during the reaction. Therefore, it must be added together with tricresyl phosphate.

In addition, expanded graphite is a material that reinforces non-combustibility, and since it has a layered structure of graphite, when heat is applied by inserting atoms or small molecules between the layers, it is separated like an accordion and the particles expand hundreds of times. Beyond flame retardancy, it strengthens non-flammability.

Therefore, in the structure according to the present invention, it is not necessary to have a separate fireproof structure, so that the construction is simple and easy, and the construction period is also shortened.

On the other hand, as shown in the example of Figure 3, the sleeve 200 is fitted to the outside of the fire tube 100 to seal between the slab 300 and the fire tube 100, the sleeve 200 is also similar to the double tube shape It has a chamber 210 in the interior, and has a structure in which the refractory foaming agent 220 is filled in the chamber 210. At this time, it is preferable that the chamber 210 is formed into a hollow shape, and then the refractory foaming agent 220 is injected later and then sealed.

When sealing between the slab 300 and the fire tube 100 by inserting the sleeve 200 on the outside of the fire tube 100, a circular frame having a triangular or wedge-shaped cross section between the fire tube 100 and the sleeve A fixed airtight rubber ring 400 having a shape may be provided on one or both of the upper side and the lower side of the sleeve 200, respectively, and installed to perform a fixing function and an airtight function.

Of course, even in this structure, when the inner diameter of the sleeve 200 on the chamber 210 side is formed to be thinner and the outer diameter is thicker, it is easily melted by heat and foamability is improved.

Thus, when the fireproof foaming agent 220 is foamed, it adheres to the outer diameter of the fireproof tube 100 and completely blocks the gap. On the other hand, the gap may be completely blocked by sticking to the inner diameter, or the gap may be completely blocked by sticking to the inner and outer diameters respectively.

That is, in another embodiment, if necessary, it is very natural that the sleeve 200 may be formed to have a thinner outer diameter and a thicker inner diameter, or thinner both the inner and outer diameters. Here, the reason for reducing the thickness is the same as described above, so it will not be described repeatedly.

Fire-resistant foaming agent 220 for this is 5% by weight of zinc phosphate, 15% by weight of liquid hydrocarbon, 15% by weight of mullite, 25% by weight of aluminum hydroxide, 20% by weight of epoxy resin, 10% by weight of glycine, and the rest of Tricre It consists of thread phosphate.

At this time, zinc phosphate is added to increase fire resistance and flame retardancy by forming a protective film made of oxides or nitrides by combining with oxygen in the air when a fire occurs.

In addition, liquid hydrocarbons include mineral oil, CM-n isoparaffin, and isohexadecane, which have excellent solubility in solids and have a cooling function to reinforce the heat shielding function.

In addition, mullite is added to enhance flame retardancy, that is, flame retardancy by high melting point around 1500℃, and aluminum hydroxide is added to enhance flame retardancy while increasing bonding and adhesion by preventing hydrophobicization of the polymer and inducing hydrophilization. .

Due to this structure, since the inner diameter of the sleeve 200 is melted and foamed by high heat during a fire, the outer diameter of the fire tube 100 is tightly sealed, so the structure of the sleeve 200 is not complicated, but it is easy to construct and blocks smoke and flames. It has an effective effect on.

100: fire tube 200: sleeve
300: slab 400: high airtight rubber ring

Claims (1)

And a sleeve 200 installed in a portion through which the fireproof tube 100 connecting the floors of the multi-storey building is penetrated to seal the outer diameter of the fireproof tube 100 while increasing fire resistance; The fireproof tube 100 is in the form of a double tube having an inner tube 110 and an exterior 120, and a foamable refractory filler 130 is filled between the inner tube 110 and the exterior 120, and the inner tube 110 is It is formed to be thinner than the exterior 120; The sleeve 200 is fitted to the outside of the fire tube 100 to seal the concrete structure between the slab 300 and the fire tube 100, and a chamber 210 is formed inside the sleeve 200, , The chamber 210 is injected with a fire-resistant foaming agent 220 that is foamed in case of fire, and the inner diameter of the sleeve 200 on the chamber 210 side is formed thinner than the outer diameter of the fire-retardant pipe penetration hole. In the structural assembly structure;
Both the inner tube 110 and the outer tube 120 are molded of polyvinyl chloride (PVC);
The refractory filler 130 includes 30% by weight of processing aid, 10% by weight of epoxy resin, 10% by weight of clay powder, 30% by weight of Exandable Graphite, 10% by weight of glycine, and Tricresyl phosphate (Tricresyl Phosphate) is made of 10% by weight,
In the processing aid, 1 kg of sodium dodecyl sulfate, 1 kg of ammonium persulfate, and 8 kg of 2-ethylhexyl prop-2-enoate were added to a reaction tank, followed by primary polymerization, and then 1 kg of sodium octane sulfonate was added to the first polymer again, and 30 minutes At the elapsed time point, 2 kg of formaldehyde salt of sulfoxylate was added to terminate the polymerization reaction;
In the case of sealing between the slab 300 and the fire tube 100 by inserting the sleeve 200 to the outside of the fire tube 100, one cross section between the fire tube 100 and the sleeve has a triangular shape or a wedge shape. A circular frame-shaped fixed airtight rubber ring 400 is provided on either or both of the upper and lower sides of the sleeve 200, respectively, and installed to perform a fixed function and an airtight function,
The fireproof foaming agent 220 includes 5% by weight of zinc phosphate, 15% by weight of liquid hydrocarbon, 15% by weight of mullite, 25% by weight of aluminum hydroxide, 20% by weight of epoxy resin, 10% by weight of glycine, and the rest of tricresyl Fireproof section pipe penetration hole fireproof filling integrated sleeve assembly structure, characterized in that consisting of phosphate.

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