KR102554968B1 - An Installing Method of an Anti-fire Filling Structures in Floor Using an Anti-firing Pellets - Google Patents

Abstract

The present invention relates to a method for constructing a refractory filling structure on a floor structure using refractory pellets. The present invention is 1) forming a base channel on the upper surface of the floor structure to correspond to the through part, 2) a U-shaped upper end extending outward on both sides so that the upper surface of the base channel is caught in the space formed between the power equipment and the through part Forming a hooking support of the hooking support and forming a support plate capable of covering the space formed between the power equipment and the penetrating part on the hooking support, 3) A gap through which the refractory pellets can pass through being closely adhered to the inner surface of the power equipment and the penetrating part is formed. Forming a fireproof pad on a support plate at a certain height so that it does not form, 4) Filling the space formed between the power equipment and the inner surface of the penetration part with fireproof pellets to the height of the upper surface of the floor structure, 5) Fireproof pellets and injection type fireproof partition Filling the space formed between the power equipment and the inner surface of the base channel with the mixed solution of the ashes, and 6) filling the space formed between the power equipment and the inner surface between the base channel with an injection-type fire barrier material up to the height of the upper surface of the base channel. can include

Description

A method of constructing fireproof filling structures in floor structures using fireproof pellets {An Installing Method of an Anti-fire Filling Structures in Floor Using an Anti-firing Pellets}

The present invention relates to a method for constructing a fireproof filling structure in a floor structure using fireproof pellets, and more particularly, to a method for constructing a fireproof filling structure in a penetrating portion of a floor structure freely regardless of the shape and size of the penetrating portion. will be.

When a fire breaks out in a building, smoke or flames can rapidly spread to upper floors or adjacent spaces. In order to prevent such rapid propagation of fire, structures such as fireproof walls (floor structures) are installed. When a pipe is installed through a fireproof wall (floor structure), a fire may propagate through a gap formed between the fireproof wall and the pipe. In general, a refractory material is filled in a gap or space formed between a refractory wall and a pipe. In this respect, a structure that prevents the progress of fire through a fireproof wall installed through penetration of pipes may be referred to as a fireproof filling structure.

In the past, fireproof filling structures were classified according to the specifications of the penetration part, so fireproof filling structures that met each standard were used for construction. For this reason, it was inconvenient to separately prepare fireproof filling structures that meet the specifications of each penetration part and construct them to meet the specifications.

After repeated research to solve the above problem, it was confirmed that a refractory filling structure can be easily formed without being restricted by the shape of the penetrating portion when filling with a refractory material in the form of a pellet, and the present invention was completed.

1. Patent Publication No. 10-2021-0150796 (2021.12.13.) 2. Patent Publication No. 10-2013-0039469 (2013.04.22.)

An object of the present invention is to provide a method for freely constructing a fireproof filling structure in the penetration part of a floor structure regardless of the shape and size of the penetration part.

One aspect of the present invention for solving the above problems is a method of constructing a fireproof filling structure in a space between the power equipment and the penetration part, in which a through part is formed in a floor structure and a power facility is installed through the through part. In the step of 1) forming a base channel on the upper surface of the floor structure to correspond to the penetrating part, 2) a U-shaped upper end extending outward on both sides so that the upper surface of the base channel is caught in the space formed between the power equipment and the penetrating part. Forming a hooking support of the hooking support and forming a support plate capable of covering the space formed between the power equipment and the penetrating part on the hooking support, 3) A gap through which the refractory pellets can pass through being closely adhered to the inner surface of the power equipment and the penetrating part is formed. Forming a fireproof pad on a support plate at a certain height so that it does not form, 4) Filling the space formed between the power equipment and the inner surface of the penetration part with fireproof pellets to the thickness of the floor structure, 5) Fireproof pellets and injection type fireproof partition Filling the space formed between the power equipment and the inner surface of the base channel with the mixed solution of the ashes, and 6) filling the space formed between the power equipment and the inner surface between the base channel with an injection-type fire barrier material up to the height of the upper surface of the base channel. It may be a method of constructing a refractory filling structure on a floor structure using refractory pellets.

In this aspect, the fourth step consists of two steps, in the first step, relatively large-grained refractory pellets are filled up to at least 1/2 and less than 2/2 of the thickness of the floor structure, and then in the second step. In this case, relatively small particles of refractory pellets can fill the remainder of the thickness of the floor structure.

In this aspect, a support plate composed of several pieces and having a multi-division structure can be used.

In this aspect, as the refractory pellet, one containing a structural reinforcing material may be used.

In this aspect, as the refractory pellets and the refractory pad, those containing a thermally expandable resin may be used. As the thermally expandable resin, a mixture of at least one selected from the group consisting of inorganic expandable flame retardants, phosphorus-based flame retardants, inorganic hydroxide-based flame retardants, boric acid-based flame retardants, silicic acid-based or carbonic acid-based flame retardants may be used in a synthetic resin or natural resin.

In this aspect, as the injection-type fireproof partition material, one containing at least one selected from the group consisting of silicone resin, polyurethane resin, epoxy resin, EVA resin, melamine resin, and urea resin may be used.

In this aspect, the injection-type fire barrier material may be a one-component or two-component type having a viscosity of 300 cps to 5,000 cps and a curing time of 30 seconds to 10 minutes.

According to the present invention, it is possible to provide a method for freely constructing a fireproof filling structure in a penetration part of a floor structure regardless of the shape and size of the penetration part.

1 is a schematic view of forming a base channel on a floor structure in a method of constructing a fireproof filling structure on a floor structure according to an aspect of the present invention.
2 is a schematic view of forming a hooking support in the method of constructing a fireproof filling structure on a floor structure according to an aspect of the present invention.
3 is a schematic view of forming a support plate in the method of constructing a fireproof filling structure on a floor structure according to an aspect of the present invention.
4 is a schematic view of forming a fire resistant pad in the method of constructing a fire resistant filling structure on a floor structure according to an aspect of the present invention.
5 and 6 are schematic views of filling fireproof pellets in the method of constructing a fireproof filling structure on a floor structure according to an aspect of the present invention.
7 is a schematic diagram in which a mixture of fire resistant pellets and injection type fire partitioning material is injected in the method of constructing a fire resistant filling structure on a floor structure according to an aspect of the present invention.
8 is a schematic diagram in which an injection-type fire partitioning material is injected in a method of constructing a fireproof filling structure on a floor structure according to an aspect of the present invention.
9 is a schematic diagram in which a fireproof partition material swollen above the base channel is removed in a method of constructing a fireproof filling structure on a floor structure according to an aspect of the present invention.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. Embodiments of the present invention can be modified in many different forms, and the scope of the present invention is not limited to the embodiments described below. Embodiments of the present invention are provided to more completely explain the present invention to those skilled in the art. Therefore, the shape and size of elements in the drawings may be exaggerated for clearer explanation, and elements indicated by the same reference numerals in the drawings are the same elements. In the present invention, the expression "first" or "second" does not mean order or importance, but is simply used to classify components.

The present invention relates to a method for constructing a fireproof filling structure in a penetration part of a floor structure regardless of the shape and dimensions of the penetration part.

1 shows a schematic diagram in which a base channel is formed on a floor structure in a method of constructing a fireproof filling structure on a floor structure according to an aspect of the present invention. 2 shows a schematic view of forming a hooking support in the method of constructing a fireproof filling structure on a floor structure according to an aspect of the present invention. 3 shows a schematic view of forming a support plate in the method of constructing a fireproof filling structure on a floor structure according to an aspect of the present invention. 4 shows a schematic view of forming a fireproof pad in the method of constructing a fireproof filling structure on a floor structure according to an aspect of the present invention. 5 and 6 show schematic diagrams in which fireproof pellets are filled in a method of constructing a fireproof filling structure on a floor structure according to an aspect of the present invention. 7 shows a schematic diagram in which a mixture of fire resistant pellets and injection type fire partitioning material is injected in the method of constructing a fire resistant filling structure on a floor structure according to an aspect of the present invention. 8 shows a schematic view in which an injection-type fire partitioning material is injected in a method of constructing a fireproof filling structure on a floor structure according to an aspect of the present invention. FIG. 9 shows a schematic view in which the fireproof partition material that has swelled above the base channel is removed in the method of constructing the fireproof filling structure on the floor structure according to one aspect of the present invention. Hereinafter, the present invention will be described with reference to the drawings.

1 to 9, in one aspect of the present invention, a through portion 40 is formed in the floor structure 30 and passes through the top and bottom, and the power equipment 11 is installed through the through portion 40 , In the method for constructing a fireproof filling structure in the space between the power facility 11 and the through portion 40, 1) a base channel 20 is formed on the upper surface of the floor structure 30 to correspond to the through portion 40. Forming step, 2) forming a U-shaped hooking support 50 with an upper end extending outward to both sides so as to be caught on the upper surface of the base channel 20 in the space formed between the power facility 11 and the through part 40, , Forming a support plate 60 that can cover the space formed between the power facility 11 and the through portion 40 on the holding support 50, 3) of the power facility 11 and the through portion 40 Forming a refractory pad 70 at a certain height on the support plate 60 so as not to form a gap through which the refractory pellets can pass through being in close contact with the inner surface, 4) Between the power equipment 11 and the inner surface of the penetration part 40 Filling the space formed in the fireproof pellets 80 to the height of the upper surface of the floor structure 30, 5) mixing the fireproof pellets 80 and the injected fireproof partition material 83 into the power equipment 11 and Filling the space formed between the inner surfaces of the base channel 20 and 6) filling the space formed between the inner surface between the power equipment 11 and the base channel 20 with the injected fireproof partition material 83 of the base channel 20 It may be a method of constructing a fireproof filling structure on the floor structure 30 using the fireproof pellets 80 including the step of filling the floor up to the height of the upper surface.

The present invention relates to a method for constructing a fireproof filling structure in a through portion 40 formed in a floor structure 30. The through-portion 40 is formed through the top and bottom of the floor structure 30, and the power facility 11 may be installed in the through-portion 40 of the floor structure 30, and the power facility 11 and the through-portion A fireproof filling structure can be constructed in the space between (40). When constructing the refractory filling structure in the penetration part 40 of the floor structure 30, in the present invention, by using the refractory pellet 80 made of a refractory material in the form of a pellet, the shape, size, etc. of the penetration part 40 It can be constructed conveniently and simply without any restrictions.

Hereinafter, it demonstrates in order.

(Level 1)

A base channel 20 may be formed on an upper surface of the floor structure 30 to correspond to the through portion 40 formed in the floor structure 30 . If the cross-sectional shape of the through portion 40 is a rectangle, the base channel 20 may also have a corresponding rectangle. The power facility 11 is installed through the through portion 40, and an empty space may be formed between the power facility 11 and the through portion 40 of the floor structure 30. The power facility 11 may be fixed to the base channel 20 via a bolt or the like. The power equipment 11 may include bus ducts, ducts, cable trays, power cables, and the like.

(Step 2)

In the space formed between the power facility 11 and the penetrating portion 40, a U-shaped locking support 50 having an upper end extending outward to both sides may be mounted so as to be caught on the upper surface of the base channel 20. The hanging support 50 may vary in shape or number depending on the cross-sectional shape of the through portion 40 formed in the floor structure 30 . If the cross-sectional shape of the penetrating portion 40 is a rectangle, a total of two hooking supports 50, one on each side of the power facility 11, may be mounted (see FIG. 3). The hooking support 50 may be manufactured by bending a strip-shaped metal plate. The two upper ends of the U may be bent outward and extended, and the bent and extended portions may be caught on the upper surface of the base channel 20 and not fall under the penetrating portion 40 .

A support plate 60 capable of covering a space formed between the power facility 11 and the penetrating portion 40 may be mounted on the hanging support 50 . The support plate 60 may be formed on the bottom surface of the U-shaped locking support 50 . The support plate 60 may be mounted on the bottom surface of the locking support 50 by mounting the support plate 60 from the top to the bottom after mounting the locking support 50 so as to be hooked to the base channel 20 . The support plate 60 may use a strip-shaped metal plate for convenience in processing. However, it is not limited thereto, and plastics, ceramics, and organic/inorganic composites may be used.

As the support plate 60, one composed of several pieces and having a multi-division structure may be used. Since the power equipment 11 is already installed in the center of the through part 40, it is convenient to construct the support plate 60 having a structure divided into at least two parts. When the through portion 40 has a rectangular shape, a support plate 60 having a structure divided into two may be used (see FIG. 3 ). In this case, the support plate 60 of the divided structure may be mounted so as to span all of the two cradle bars. That is, the support rod and the divided support plate 60 may be mounted at an angle of 90 degrees to each other. In other words, the longitudinal direction of the support rod and the support plate 60 of the split structure may be mounted at an angle of 90 degrees. However, it is not limited thereto. If the through portion 40 has a triangular cross section, the support plate 60 may have a structure divided into three parts.

(Step 3)

The refractory pad layer 70 is placed on the support plate 60 at a certain height so as not to form a gap through which the refractory pellets 80 can pass through being in close contact with the power equipment 11 and the inner surface of the penetration part 40. (170) can be formed. The refractory pad 70 may have a foam structure. For this reason, the refractory pad 70 can be easily cut according to the shape of the outer surface of the power equipment 11 and the inner surface of the penetrating portion 40 to fill the space between the outer surface of the power facility 11 and the inner surface of the penetrating portion 40. Since it has elasticity, the refractory pad 70 can be efficiently adhered to the outer surface of the electric power equipment 11 and the inner surface of the penetrating portion 40, so that the refractory pellets 80 can escape later. It is also possible to prevent the formation of gaps to the extent that there is.

As the refractory pad 70, one containing a thermally expandable resin may be used. In the event of a fire, the heat-expandable resin expands while causing a foaming reaction due to the heat of the fire, so that the expanded resin seals the penetration part 40 of the floor structure 30 more effectively, so that the fire can pass through the penetration part 40. you can block it. It is the same as that described in the section on the refractory pellets 80 to be described later related to the thermally expandable resin. Recycled products or new materials may be used as the fireproof pad 70 .

(Step 4)

The space formed between the power facility 11 and the inner surface of the penetration part 40 may be filled up to the thickness of the floor structure 30 by introducing the refractory pellets 80 thereto. The refractory pellets 80 may be filled with particles of the same size, or particles of different sizes may be mixed and filled. Filling rate can be improved when particles of different sizes are mixed and filled. Recycled products or new materials may be used as the refractory pellets 80 .

The fourth step may consist of two processes. First, in the first process, relatively large particles of the refractory pellets 80 may be filled up to half or more and less than 2/2 of the thickness of the floor structure 30 (first refractory pellet layer 181). In general, it is preferable to fill about 50% to 70% of the thickness of the floor structure 30 . Next, in the second process, the remainder of the thickness of the remaining floor structure 30 may be filled using the refractory pellets 80 having relatively small particles (the second refractory pellet layer 182). In this way, large-particle refractory pellets 80 may be filled in the lower portion, and relatively small-particle refractory pellets 80 may be filled in the upper portion. In an actual construction site, the space between the penetration part 40 and the power facility may not be completely sealed due to construction errors. It is intended to prevent the possible falling outflow of the refractory pellets 80 in advance.

As the refractory pellet 80, one containing a thermally expandable resin can be used. In the event of a fire, the heat-expandable resin expands while causing a foaming reaction due to the heat of the fire, and the expanded resin seals the penetration part 40 of the floor structure 30 more effectively, so that the fire can proceed through the penetration part 40. you can block it.

The thermally expandable resin may include a mixture of at least one selected from the group consisting of inorganic expansible flame retardants, phosphorus-based flame retardants, inorganic hydroxide-based flame retardants, boric acid-based flame retardants, and silicic acid-based or carbonate-based flame retardants in a synthetic resin or natural resin. Specifically, the thermally expandable resin causes the initial carbide generated by the fire of the mixed inorganic hydroxide-based flame retardant to re-solidify by mixing silicic acid (SiO ₂ ) and boric acid (B ₂ O ₅ ), etc., thereby gradually increasing the carbonized film. It can be mixed and manufactured to play a role in strengthening and exhibit heat shielding and flame shielding performance step by step according to temperature. Alternatively, synthetic resins or natural resins such as isocyanates, silicones, polyols, and rubbers, inorganic expandable flame retardants, phosphorus-based flame retardants, and ammonium polyphosphate (APP ) Or it may be made by mixing one or two or more selected from polymelamine phosphate (MPP), an inorganic hydroxide-based flame retardant, a boric acid-based flame retardant, and a silicic acid-based or carbonate-based flame retardant.

The thermally expandable resin includes 5 to 70 parts by weight of an inorganic expandable flame retardant, 10 to 150 parts by weight of a phosphorus-based flame retardant, and 10 to 30 parts by weight of ammonium polyphosphate (APP) or melamine polyphosphate (MPP) based on 100 parts by weight of a synthetic resin or natural resin. It can be prepared by mixing at least one selected from the group consisting of 10 to 70 parts by weight of an inorganic hydroxide-based flame retardant, 10 to 70 parts by weight of a boric acid-based flame retardant, and 10 to 70 parts by weight of a silicic acid-based or carbonic acid-based flame retardant into a synthetic resin or natural resin. .

에서 발포하여 초기 화재에 대한 내화성을 부여한다.Inorganic expandable flame retardants may include expanded graphite, expanded perlite, perlite, etc., and 250

It is fired at to give fire resistance to initial fire.

이하에서 화재를 극대화시키는 탄화수소(OH)와 수소(H)를 인산(H₃PO₄)이 탄화수소와 수소를 흡수하여 화재 확산을 억제하고, 열기류에 의해 약해진 차열층을 비팽창성 인계 난연제가 공극을 메워 형태의 붕괴를 방지한다.Phosphorus-based flame retardants are non-swellable flame retardants, and phosphorus, phosphates, phosphine oxide, phosphine oxide diols, phosphites, phosphonates, etc. can be used.

Below, hydrocarbon (OH) and hydrogen (H), which maximize fire, and phosphoric acid (H ₃ PO ₄ ) absorb hydrocarbon and hydrogen to suppress the spread of fire, and the non-expandable phosphorus-based flame retardant fills the gaps in the heat shield layer weakened by heat flow. It is filled to prevent collapse of the form.

Ammonium polyphosphate (APP) or polymelamine (MPP) acts to prevent the previously expanded inorganic expandable flame retardant from scattering. It acts as a layer.

이하에서 열에 의해 물분자를 방출하여 냉각 작용을 함으로써 단단한 차열층의 붕괴를 방지하는 작용을 한다.Inorganic hydroxide-based flame retardants may use, for example, aluminum hydroxide, magnesium hydroxide, etc., 500

Hereinafter, water molecules are released by heat to perform a cooling effect, thereby preventing collapse of the hard heat shield layer.

이하의 온도에서 작용하는데, 이후의 지속적인 화재로부터 장기간 동안 단단한 차열층을 유지할 수 있도록 하는 작용을 한다. 붕산계 난연제로는 붕산염, 붕산암모늄 등을 사용할 수 있다. Boric acid flame retardant is 750

It works at the temperature below, and it acts to maintain a hard insulation layer for a long period of time from continuous fire. As the boric acid-based flame retardant, borates, ammonium borate, and the like may be used.

이하에서 팽창하여 차열 기능을 수행하는데, 규산계 난연제로는 규산칼륨, 규산마그네슘 등을 사용할 수 있고, 탄산계 난연제로는 탄산칼륨, 탄산칼슘 등을 사용할 수 있다. Silicic acid or carbonic acid flame retardants are 1,000

It expands below to perform a heat shielding function, potassium silicate, magnesium silicate, etc. can be used as a silicic acid-based flame retardant, and potassium carbonate, calcium carbonate, etc. can be used as a carbonate-based flame retardant.

The thermal expansion resin's thermal insulation mechanism is as follows. That is, at the beginning of a fire, the inorganic expandable system expands to form a heat shield layer, the expandable phosphorus-based flame retardant prevents the inorganic expandable flame retardant from scattering, and the formed heat shield layer is protected by the inorganic hydroxide-based flame retardant releasing water molecules thereafter. The non-expandable phosphorus-based flame retardant fills the gaps in the heat shield layer weakened by the heated air flow so that it does not break, and the continued flame after that can be protected by the silicic acid-based or carbonic acid-based flame retardant.

The refractory pellets 80 may include a structural reinforcing material. Since the refractory pellets 80 are basically made of resin, even if they are molded into a final product later, mechanical properties are inevitably low. In order to solve this problem, a structural reinforcing material may be included. The structural reinforcement may be used by impregnating the refractory pellets 80. Through impregnation, the structural reinforcing material and the refractory pellets 80 can be integrated, and through this, the function of the structural reinforcing material can be more faithfully exhibited. It is like putting rebar in concrete. As such a structural reinforcing material, those having flexibility such as fibers and having excellent mechanical properties such as tensile strength may be used. Specifically, glass fiber, aramid fiber, metal mesh, etc. can be used. In addition, the structural reinforcing material may serve as a condensation nucleus when the refractory material is formed into a pellet, thereby significantly improving work efficiency.

(Step 5)

A mixed solution 84 obtained by mixing the refractory pellets 80 and the injected fireproof partitioning material 83 may fill the space formed between the power equipment 11 and the inner surface of the base channel 20 . Mix thoroughly until the viscosity increases sufficiently. The mixed solution 84 may fill up to 50% to 70% of the height of the base channel 20 (mixed layer 184). Since the refractory pellets 80 are in the form of particles, even if they are filled, voids are inevitably formed between the particles, which means that they are filled with the injection-type fire barrier material 83 in liquid form. As a result, it is possible to demonstrate both the advantages of the fire resistant pellets 80 and the advantages of the injected fire partitioning material 83, so that the effect of preventing fire propagation can be further improved. At this time, as the refractory pellets 80, relatively small particles (second refractory pellets 82) of the fourth step may be used. The same refractory pellets 80 (second refractory pellets 82) filled in the layer immediately below can be used. Recycled products or new materials may be used as the refractory pellets 80 .

The injection type fire protection partition material 83 may include a main agent, a flame retardant and a curing agent. The base material may include a liquid-based resin series such as liquid silicone or polyol. More specifically, at least one selected from the group consisting of a silicone resin, a polyurethane resin, an EVA resin, an elastomer, an epoxy resin, a melamine resin, and a urea resin may be included. The flame retardant may include a mixture of at least one selected from the group consisting of an inorganic expandable flame retardant, a phosphorus-based flame retardant, an inorganic hydroxide-based flame retardant, a boric acid-based flame retardant, and a silicic acid-based or carbonate-based flame retardant. Curing agents may include isocyanates, peroxyses, platinum, and the like.

The viscosity of the injection-type fire partitioning material 83 may be 300 cps to 5,000 cps. If the viscosity is less than 300 cps, since the injection-type fire partition material 83 is too thin, the injection-type fire partition material 83 is applied to the power equipment 11, the fireproof pad 70, the inner surface of the penetration part 40, and the base channel 20 It can flow through the tiny gaps that exist between them. If the viscosity is greater than 5,000cps, when mixing the refractory pellets 80 and the injection-type fireproof partitioning material 83, they are not mixed evenly, and the refractory pellets 80 may separately agglomerate to form clusters, thereby resulting in the final refractory filling structure product. Uniform refractory properties cannot be obtained.

The injection-type fire partitioning material 83 may be cured at room temperature. Curing time may be 30 seconds to 10 minutes. If the curing time is shorter than 30 seconds, the injected fire partition material 83 cures too quickly and loses fluidity, so when mixing the fire resistant pellets 80 and the injected fire partition material 83, the fire resistant pellets 80 do not mix evenly. It is possible to form clusters by aggregating separately, and due to this, uniform fire resistance characteristics cannot be obtained in the final refractory filling structure product. If the curing time is longer than 10 minutes, the injected fire partition material 83 is present between the power equipment 11, the fireproof pad 70, the inner surface of the penetration part 40, and the base channel 20. This may flow into a fine gap, and as a result, an empty space may be formed therein, and thus the fire resistance properties of the final fireproof filling structure may be deteriorated.

The injection type fire protection partition material 83 may further include a foam additive and a foam stabilizer. As a result, it can have some foamability at room temperature, and due to this foamability, the injection-type fire partition material 83 is formed between the power equipment 11, the fireproof pad 70, the penetration part 40, and the base channel 20 It can more easily penetrate into the fine gaps that exist, so the gaps can be effectively sealed.

The injected fire partition 83 may be of a two-component type. In the case of the one-component type, the curing agent is mixed in the flame retardant mother liquor itself, and when injected, the curing reaction may start in contact with oxygen in the air. On the other hand, in the case of the two-component type, the mother liquor and hardener can be prepared separately in separate cartridges and mixed during injection. The amount of the curing agent may be 0.01 part by weight to 100 parts by weight based on 100 parts by weight of the main material. The curing rate can be controlled by adjusting the amount of the curing agent.

(Step 6)

In the remaining space formed between the inner surface between the power equipment 11 and the base channel 20, the injected fireproof partition 83 may be filled up to the height of the upper surface of the base channel 20 (fireproof partition layer 183). The amount of the injected fire partition material 83 may be changed according to the degree of expansion. When the fire partition material 83 is swollen higher than the height of the upper surface of the base channel 20, this part can be cut and finished.

Terms used in the present invention are intended to describe specific embodiments and are not intended to limit the present invention. Expressions in the singular number should be regarded as including the meaning of the plural, unless the context makes it clear. Terms such as “include” or “have” mean that features, numbers, steps, operations, components, or combinations thereof described in the specification exist, but are not intended to exclude them.

The present invention is not limited by the above-described embodiment and the accompanying drawings, but is intended to be limited by the appended claims. Therefore, various forms of substitution, modification and change will be possible by those skilled in the art within the scope of the technical spirit of the present invention described in the claims, and these should also be considered to fall within the scope of the present invention. something to do.

11: Power equipment (eg, bus duct, etc.)
12: angle
13: fireproof cover
14: Bolt
20: Bass channel
30: floor structure
40: through part
50: hanging support
60: support plate
70: fireproof pad
80: refractory pellets (81: first refractory pellets, 82: second refractory pellets)
83: Injection type fire partitioning material
84: mixed liquid
170: refractory pad layer
181: first layer of refractory pellets
182: second layer of refractory pellets
183: fire partition layer
184 Mixed layer

Claims (8)

A method of constructing a fireproof filling structure in a space between the power equipment and the penetration, wherein a through-hole is formed in a floor structure and a power facility is installed through the through-through portion,
1) forming a base channel on an upper surface of the floor structure to correspond to the through portion;
2) In the space formed between the power equipment and the penetrating part, a U-shaped hooking support having an upper end extending outwardly is formed so as to be caught on the upper surface of the base channel, and between the power equipment and the penetrating part is formed on the hanging support Forming a support plate capable of covering the space formed in;
3) forming a refractory pad at a constant height on the support plate so that a gap through which refractory pellets can pass is not formed by adhering to the power equipment and the inner surface of the penetration part;
4) injecting refractory pellets into the space formed between the power equipment and the inner surface of the penetration part to fill the space up to the thickness of the floor structure;
5) filling a space formed between the power equipment and the inner surface of the base channel with a mixture of the fireproof pellets and the injection-type fireproof partitioning material; and
6) filling the remaining space formed between the power equipment and the inner surface between the base channel with an injection-type fire partitioning material up to the height of the upper surface of the base channel;
A method of constructing a refractory filling structure on a floor structure using refractory pellets.
According to claim 1,
The fourth step consists of two processes. In the first step, relatively large particles of refractory pellets are filled to at least 1/2 and less than 2/2 of the thickness of the floor structure, and in the second step, relatively A method of constructing a refractory filling structure in a floor structure using refractory pellets, in which small-particle refractory pellets fill the remainder of the thickness of the floor structure.
According to claim 1,
A method of constructing a refractory filling structure in a floor structure using refractory pellets, in which the support plate is composed of several pieces and has a multi-division structure.
According to claim 1,
A method of constructing a refractory filling structure in a floor structure using refractory pellets, in which a structural reinforcing material is used as the refractory pellet.
According to claim 1,
A method of constructing a fireproof filling structure on a floor structure using fireproof pellets, wherein the fireproof pellets and the fireproof pad include a thermally expandable resin.
According to claim 5,
The heat-expandable resin is a mixture of at least one selected from the group consisting of a synthetic resin or a natural resin, an inorganic expandable flame retardant, a phosphorus-based flame retardant, an inorganic hydroxide-based flame retardant, a boric acid-based flame retardant, a silicic acid-based flame retardant, or a mixture of carbonate-based flame retardants. A method of constructing a fireproof filling structure on a floor structure using fireproof pellets.
According to claim 1,
Fireproof filling in the floor structure using fireproof pellets using one or more selected from the group consisting of silicone resin, polyurethane resin, epoxy resin, EVA resin, melamine resin and urea resin as the injection-type fireproof partitioning material How to construct a structure.
According to claim 1,
The injection type fire protection partition material is a one-component or two-component type, has a viscosity of 300 cps to 5,000 cps, and a curing time of 30 seconds to 10 minutes.

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