JP6898190B2 - Penetration structure of fire protection compartment wall - Google Patents

Description

The present invention relates to a penetrating structure of a fire-retardant compartment wall configured by installing a refractory member at a position where a fluid pipe penetrates a through-hole of the fire-retardant compartment wall.

Generally, the refrigerant pipe (fluid pipe) for supplying the refrigerant to a large refrigerator is made of metal and is covered with a heat insulating material to be insulated from the outside air. In order to allow the refrigerant pipe covered with the heat insulating material to penetrate the fireproof partition wall, the fireproof compartment wall is formed with a through hole penetrating the fireproof compartment wall in the thickness direction. In order to prevent the gap between the through hole and the heat insulating material from becoming an intrusion route for flames, smoke, and toxic gas generated on one side of the fireproof partition wall to the other side. Structure is provided.

Examples of the structure of such a fire protection compartment wall include the fire protection compartment penetration structure disclosed in Patent Document 1. In the fireproof compartment penetration structure of Patent Document 1, a tape-shaped molded body made of a heat-expandable material is wound around the outer surface of a cable or pipe penetrating the through hole, and the tape-shaped molded body is arranged in the through hole. In addition, mortar, non-combustible material, and putty are backfilled between the outer surface of the tape-shaped molded body fixed to the cable or pipe and the inner surface of the through hole to form a fireproof compartment penetration structure.

In the fireproof compartment penetration structure of Patent Document 1, the adhesive surface of the tape-shaped molded body is attached to the outer surface of the cable or pipe, and both ends of the tape-shaped molded body in the longitudinal direction are overlapped and attached. It is fixed to the cable or piping in the state.

Then, even if a fire or the like occurs on one side of the fire-prevention section wall and the cables or pipes are thermally deformed or burnt, the tape-shaped molded body expands toward the burned cables or pipes due to the heat of the fire or the like. By closing the gap created by burning, flames, smoke and toxic gases are prevented from reaching the other side of the fire compartment wall.

Japanese Unexamined Patent Publication No. 2003-148658

As described above, in the fireproof partition wall through which the refrigerant pipe covered with the heat insulating material penetrates, the tape-shaped molded product of Patent Document 1 may be wound around the heat insulating material to form a penetrating structure. However, in general, the heat insulating material has a large number of independent fine bubbles, and when heated by heat generated by a fire or the like, the heat insulating material expands due to the expansion of the bubbles. In particular, the heat insulating material having an enhanced heat insulating effect has a very large expansion amount. In addition, the adhesive surfaces on which the ends of the tape-shaped molded product are attached to each other are melted by heat. Then, the state in which both ends of the tape-shaped molded body are bonded to each other in the longitudinal direction is released, the tape-shaped molded body cannot be expanded in the direction of closing the gap, and there is a risk that the fire resistance performance cannot be exhibited.

An object of the present invention is to provide a penetration structure of a fire protection compartment wall capable of exhibiting fire resistance even if the fire protection compartment wall is penetrated by a heat insulating material.

In the penetrating structure of the fireproof compartment wall for solving the above problems, a fireproof member is installed at a place where a metal fluid pipe covered with a heat insulating material made of an independent foam material penetrates the through hole of the fireproof compartment wall. It is a through structure of the constructed refractory partition wall, and the refractory member comprises a flexible rectangular sheet-shaped base material and a rectangular heat-expandable refractory material layer laminated on one surface of the base material. In the refractory member, the extending direction of one edge of the base material is the first direction, the extending direction of the other edge orthogonal to the one edge is the second direction, and the refractory member is in the first direction. The ends located at both ends are wound around the heat insulating material in a state of being abutted or overlapped with each other, the heat insulating material is surrounded by the base material, and between the base material and the heat insulating material, The heat-expandable refractory layer is interposed in a state surrounding the heat insulating material, and the base material and a part of the heat-expandable refractory layer located on one end side in the second direction penetrate through the heat-insulating material as an insertion portion. Upon being inserted into the hole, the other end side of the refractory member in the second direction from the insertion portion is exposed to the outside of the fireproof partition wall as an exposed portion, and the inner surface of the through hole and the outer surface of the refractory member The space is filled with a filler, and the exposed portion is located in the first direction by a metal fastening member that surrounds the base material covering the heat-expandable refractory layer from the outside at a position away from the refractory partition wall. It is a gist that the end portions located at both ends of the first direction are abutted against each other or overlapped with each other.

Further, regarding the penetrating structure of the fire protection compartment wall, in the exposed portion, a portion of the exposed portion that is farther from the fire protection compartment wall than the fastening member along the second direction is a band-shaped or string-shaped auxiliary that surrounds the base material from the outside. It may be tightened in the first direction by the fastening member.

Further, regarding the penetrating structure of the fireproof partition wall, the length of the base material in the second direction is longer than the length of the heat-expandable refractory material layer in the second direction, and the refractory member is the second. The other end side in the direction has an extension portion formed by the base material protruding from the heat-expandable refractory layer, and the auxiliary fastening member tightens the extension portion in the first direction. You may.

Further, regarding the penetrating structure of the fireproof partition wall, the length of the base material in the second direction is longer than the length of the heat-expandable refractory material layer in the second direction, and the refractory member is the second. An extension portion formed by the base material protruding from the heat-expandable refractory layer may be provided on the other end side in the direction, and the extension portion may be attached to the heat insulating material by an adhesive member. ..

Further, regarding the penetrating structure of the fireproof compartment wall, it is preferable that the fireproof members are installed on both sides in the thickness direction of the fireproof compartment wall.

According to the present invention, fire resistance can be exhibited even in a fire protection compartment wall through which a heat insulating material penetrates.

A cross-sectional view showing a penetrating structure of a fire protection compartment wall. An enlarged cross-sectional view showing a penetrating structure of a fire protection compartment wall. The perspective view which shows the refractory member unfolded. The perspective view which shows the refractory member. FIG. 4 is a cross-sectional view taken along line 5-5 of FIG. 4 showing a refractory member. A perspective view showing a state in which a refrigerant pipe and a heat insulating material are arranged on a fireproof partition wall. The perspective view which shows the state which the refractory member was wound around the heat insulating material. The perspective view which shows the state which tightened the refractory member by the fastening member. A cross-sectional view showing a state in which the extension portion is attached to a heat insulating material by an adhesive sheet.

Hereinafter, an embodiment embodying the penetrating structure of the fire protection compartment wall will be described with reference to FIGS. 1 to 8.
As shown in FIG. 1 or 2, the concrete fireproof partition wall W is formed with a circular through hole Wa penetrating the fireproof partition wall W in the thickness direction. A fluid tube S formed in a cylindrical shape by metal is inserted through the through hole Wa. The refrigerant supplied to the large refrigerator is distributed in the fluid pipe S.

The fluid tube S is covered with a cylindrical heat insulating material 10. The heat insulating material 10 insulates the refrigerant in the fluid pipe S from the outside air. As the heat insulating material 10, for example, there is a material made of a special elastomer (EPDM synthetic rubber) that is lightweight and flexible. Such a heat insulating material 10 is made of an independent foaming material having a large number of independent fine bubbles, and has excellent heat insulating properties due to the closed cells. In order to suppress the deterioration of the refrigerating function of the large refrigerator, it is necessary to suppress the temperature rise of the refrigerant, and as the heat insulating material 10, a material having an enhanced heat insulating effect is used. In the heat insulating material 10 made of the independent foaming material, when the heat insulating effect is enhanced, the closed cells become finer and the structure has more bubbles.

Next, the fireproof member 11 arranged in the through hole Wa in order to form the through structure of the fireproof partition wall W will be described.
First, the refractory member 11 before being wound around the heat insulating material 10 will be described.

As shown in FIG. 2 or 3, the refractory member 11 has a rectangular sheet shape. The fireproof member 11 covers a rectangular sheet-shaped base material 12, a rectangular heat-expandable refractory layer 22 laminated so as to cover one surface of the base material 12, and one surface of the heat-expandable refractory layer 22. The film 32 laminated to the above is provided. The refractory member 11 has a three-layer structure of a base material 12, a heat-expandable refractory layer 22, and a film 32.

The base material 12 has flexibility. The base material 12 is made of a glass fiber reinforced composite material. The base material 12 is formed by compounding a matrix resin with a glass cloth formed by plain weave, twill weave, satin weave, or the like of glass fibers. Since the glass fiber is a highly flame-retardant material, the base material 12 is flame-retardant.

The base material 12 includes a pair of long base material edges 12a parallel to each other and a pair of short base material short edges 12b connecting one ends or the other ends of the pair of long base material edges 12a. The extending direction of the long base material 12a as one edge of the base material 12 is the longitudinal direction of the base material 12, and the extending direction of the short base material 12b as the other edge of the base material 12 is the lateral direction of the base material 12. Is. In the present embodiment, the longitudinal direction Y1 of the base material 12 is set as the first direction, and the lateral direction Y2 of the base material 12 is set as the second direction orthogonal to the first direction. The longitudinal direction Y1 of the base material 12 coincides with the longitudinal direction of the refractory member 11, and the lateral direction Y2 of the base material 12 coincides with the lateral direction of the refractory member 11. Therefore, the longitudinal direction of the refractory member 11 is indicated by the longitudinal direction Y1, and the lateral direction of the refractory member 11 is indicated by the lateral direction Y2.

The heat-expandable refractory material layer 22 is made of a heat-expandable heat-resistant putty (butyl rubber mixed with expanded graphite and petroleum wax). As shown in FIG. 2, the heat-expandable refractory layer 22 has adhesiveness and is attached to one surface of the base material 12. The rectangular heat-expandable refractory layer 22 includes a pair of long edges 22a parallel to each other and a pair of short edges 22b connecting one ends or the other ends of the pair of long edges 22a (see FIG. 3). The pair of long edges 22a extend in the longitudinal direction Y1 of the base material 12, and the pair of short edges 22b extend in the lateral direction Y2 of the base material 12. The length of the short edge 12b of the base material in the lateral direction Y2 is longer than the length of the short edge 22b of the heat-expandable refractory layer 22 in the lateral direction Y2.

One long edge 22a of the heat-expandable refractory layer 22 is located at a position separated from one long base material edge 12a toward the other base material long edge 12a. On the other hand, the other long edge 22a of the heat-expandable refractory layer 22 is inside the other long edge 12a of the base material along the lateral direction Y2. The refractory member 11 includes an extending portion 13 of the base material 12 at a portion of the heat-expandable refractory material layer 22 protruding from the other long edge 22a. The extending portion 13 is formed of the base material 12 itself.

As shown in FIG. 3, the film 32 is attached to the heat-expandable refractory material layer 22. The film 32 includes a pair of film long edges 32a parallel to each other and a pair of film short edges 32b connecting one ends or the other ends of the pair of film long edges 32a. The length of the film short edge 32b in the lateral direction Y2 is longer than the length of the short edge 22b of the heat-expandable refractory layer 22 in the lateral direction Y2, and the substrate short length of the substrate 12 in the lateral direction Y2. Shorter than the length of the edge 12b.

One of the long edges 32a of the film 32 protrudes from one long edge 22a of the heat-expandable refractory layer 22. On the other hand, the other long edge 32a side of the film is flush with the other long edge 22a of the heat-expandable refractory layer 22. The other long edge 32a of the film may protrude from the long edge 22a of the heat-expandable refractory layer 22.

On both ends of the base material 12 in the longitudinal direction Y1, the short edge 12b of the base material, the short edge 22b of the heat-expandable refractory layer 22, and the short edge 32b of the film are flush with each other. The refractory member 11 is provided with mating surfaces 17 at both ends in the longitudinal direction Y1, which are formed of surfaces in which the short edge 12b of the base material, the short edge 22b, and the short edge 32b of the film are aligned. Further, the refractory member 11 is provided with a polymerization end portion 18 including a mating surface 17 at both ends in the longitudinal direction Y1. The polymerization end portion 18 extends from the mating surface 17 to a portion slightly inside in the longitudinal direction Y1.

Further, the refractory member 11 includes a first end portion 15 on one end side in the lateral direction Y2. The first end portion 15 is an end portion where one long edge 12a of the base material, one long edge 22a, and one long edge 32a of the film are located. The refractory member 11 includes a second end portion 16 on the other end side in the lateral direction Y2. The second end portion 16 is an end portion where the other long edge 12a of the base material is located.

The length of the refractory member 11 in the longitudinal direction Y1 is the same as or slightly longer than the peripheral length of the heat insulating material 10. As shown in FIG. 8, when the refractory member 11 is wound along the peripheral surface of the heat insulating material 10, the mating surfaces 17 at both ends of the fireproof member 11 in the longitudinal direction Y1 can be brought into contact with each other. Specifically, the short edges 12b of the base material located at both ends of the fireproof member 11 in the longitudinal direction Y1, the short edges 22b of the heat-expandable refractory layer 22, and the short edges 32b of the film can be brought into contact with each other. The length of the fireproof member 11 in the lateral direction Y2 is longer than the thickness of the fireproof partition wall W.

As shown in FIG. 5, the fireproof member 11 is used by winding the film 32 around the heat insulating material 10 so that the film 32 comes into contact with the outer peripheral surface of the heat insulating material 10. In the refractory member 11 wound around the heat insulating material 10, the base material 12 surrounds the heat insulating material 10. Further, the heat-expandable refractory material layer 22 is interposed between the base material 12 and the heat insulating material 10 via the film 32.

As shown in FIG. 2 or 4, the refractory member 11 having the above configuration is wound around the heat insulating material 10 by being tightened in the circumferential direction by the fastening member 40 and the auxiliary fastening member 41. The fastening member 40 tightens the refractory member 11 in a state of surrounding the refractory member 11 from the outside of the base material 12, and applies a force to the refractory member 11 in the diameter reduction direction. Further, the fastening member 40 tightens the portion of the refractory member 11 in which the heat-expandable refractory layer 22 exists, and the auxiliary fastening member 41 tightens the extension portion 13 in which the heat-expandable refractory layer 22 does not exist.

The fastening member 40 and the auxiliary fastening member 41 are string-shaped bind wires in which a steel wire is coated with a resin such as polyethylene resin. Since the fastening member 40 and the auxiliary fastening member 41 include steel wires, they hardly extend in the longitudinal direction due to heat. The length of the fastening member 40 and the auxiliary fastening member 41 is longer than the length of the refractory member 11 in the longitudinal direction Y1.

As shown in FIG. 4 or 5, in a state where the refractory member 11 is wound around the peripheral surface of the heat insulating material 10 and the mating surfaces 17 of the refractory member 11 are butted against each other, the fastening member 40 and the auxiliary are used on the peripheral surface of the refractory member 11. When the fastening member 41 is aligned, the surplus portions 40a and 41a are formed before the portions where both ends of the fastening member 40 and the auxiliary fastening member 41 in the longitudinal direction intersect.

Then, by winding the surplus portions 40a and 41a together, the refractory member 11 is tightened by the fastening member 40 and the auxiliary fastening member 41, and a force can be applied to the refractory member 11 in the diameter reduction direction. Further, the fastening member 40 and the auxiliary fastening member 41 maintain a state in which the mating surfaces 17 are butted against each other over the entire lateral direction Y2. In the present embodiment, the states in which the mating surfaces 17 are butted against each other and brought into contact with each other are the short edges 12b of the base materials 12, the short edges 22b of the heat-expandable refractory layer 22, and the short edges 32b of the film. It is in a state where they are butted against each other and brought into contact with each other.

Next, a penetrating structure of the fireproof partition wall W using the fireproof member 11 will be described.
As shown in FIG. 2, the penetrating structure of the fireproof partition wall W is formed by winding the fireproof member 11 around the heat insulating material 10.

The refractory member 11 wound around the heat insulating material 10 is pressed against the outer peripheral surface of the heat insulating material 10 by winding the surplus portions 40a and 41a of the fastening member 40 and the auxiliary fastening member 41 together. Specifically, the film 32, which is the innermost layer of the refractory member 11, is brought into close contact with the outer peripheral surface of the heat insulating material 10 by tightening with the fastening member 40, and the extending portion 13 (base material 12) is tightened with the auxiliary fastening member 41. Is in close contact with the outer peripheral surface of the heat insulating material 10. Therefore, there is almost no gap between the inner peripheral surface of the refractory member 11 and the outer peripheral surface of the heat insulating material 10. In particular, since the heat-expandable refractory layer 22 made of putty does not exist in the extension portion 13, the degree of closeness of the extension portion 13 to the heat insulating material 10 is high.

Further, as shown in FIG. 8, in the circumferential direction of the refractory member 11, the fastening member 40 and the auxiliary fastening member 41 maintain a state in which the mating surfaces 17 of the refractory member 11 are abutted against each other, and the mating surfaces 17 are brought together. There is no gap between them over the entire lateral direction Y2.

As shown in FIG. 2, the first end portion 15 of the refractory member 11 is inserted into the through hole Wa as an insertion portion. In the refractory member 11, the second end 16 side of the first end 15 along the lateral direction Y2 is located outside the through hole Wa. Hereinafter, in the refractory member 11, the portion exposed to the outside of the through hole Wa will be referred to as an exposed portion R. The fastening member 40 is wound around the exposed portion R where the heat-expandable refractory layer 22 exists, and the auxiliary fastening member 41 is wound around the extension portion 13 where the heat-expandable refractory layer 22 does not exist. ing. The exposed portion R covers a part of the heat insulating material 10 on the outside of the fireproof partition wall W over the entire circumference.

The position around which the fastening member 40 is wound, that is, the distance from the outer surface of the fireproof partition wall W to the fastening member 40 is determined by the expansion coefficient of the heat insulating material 10. In order to maintain the state in which the mating surfaces 17 of the refractory members 11 are abutted against each other as the heat insulating material 10 has a larger expansion rate, it is preferable that the fastening member 40 is closer to the refractory partition wall W. On the other hand, the smaller the expansion rate of the heat insulating material 10, the more the fastening member 40 can maintain the state in which the mating surfaces 17 of the refractory members 11 are butted against each other even if the fastening member 40 is separated from the fireproof partition wall W. In the present embodiment, assuming that the length of the exposed portion R from the outer surface of the fireproof partition wall W is L, the fastening member 40 is located closer to the fireproof partition wall W than the position where the length L of the exposed portion R is half. doing.

In the through hole Wa, a mortar 19 as a filler is provided in the entire gap between the outer peripheral surface of the first end portion 15 (insertion portion) of the refractory member 11 and the inner peripheral surface of the through hole Wa facing the outer peripheral surface. It is filled. Examples of the filler include heat-resistant putty other than mortar 19.

Next, a method of forming a penetrating structure of the fireproof partition wall W will be described.
First, as shown in FIG. 6, a through hole Wa is formed in the fire protection partition wall W during the construction of the building. A fluid tube S is inserted through the through hole Wa. The fluid tube S is covered with the heat insulating material 10. Next, as shown in FIG. 7, the refractory member 11 is arranged so that the film 32 of the refractory member 11 faces the outer peripheral surface of the heat insulating material 10 located outside the through hole Wa. At this time, the fireproof member 11 is arranged so that the first end 15 side of the fireproof member 11 is located on the fireproof partition wall W side and the second end 16 side is located on the side away from the fireproof partition wall W.

Next, the refractory member 11 is deformed along the circumferential direction of the heat insulating material 10 to form a substantially cylindrical shape. Then, the fireproof member 11 is slid along the heat insulating material 10 and the first end portion 15 is inserted into the through hole Wa of the fireproof partition wall W. As a result of inserting the first end portion 15 of the fireproof member 11 into the through hole Wa, an exposed portion R of the fireproof member 11 is formed on the outside of the fireproof partition wall W.

Next, as shown in FIG. 8, in a state where the mating surfaces 17 of the refractory members 11 are butted against each other, the base material 12 covering the heat-expandable refractory material layer 22 is surrounded by the fastening member 40 from the outside in the exposed portion R. , The fastening member 40 is wound around the refractory member 11 and crossed to form a surplus portion 40a. After that, the pair of surplus portions 40a are wound up.

Similarly, in the exposed portion R, the extension portion 13 is surrounded by the auxiliary fastening member 41 from the outside, and the auxiliary fastening member 41 is wound around the refractory member 11 and crossed to form the surplus portion 41a. After that, the pair of surplus portions 41a are wound tightly. As a result, the refractory member 11 is wound around the heat insulating material 10.

The fastening member 40 and the auxiliary fastening member 41 maintain the mating surfaces 17 of the refractory member 11 in an abutted state, and the film 32 and the extending portion 13 constituting the inner peripheral surface of the refractory member 11 are the heat insulating material 10. It is in close contact with the outer peripheral surface of the fireproof member 11, and there is almost no gap between the inner peripheral surface of the refractory member 11 and the outer peripheral surface of the heat insulating material 10.

The first end portion 15 which is a part of the fireproof member 11 is arranged in the through hole Wa, and the exposed portion R which is another portion is arranged outside the fireproof partition wall W. Since the first end portion 15 is located slightly behind the outer surface of the fire protection compartment wall W, the state of the first end portion 15 can be visually recognized from the outside of the fire protection compartment wall W.

After installing the fireproof member 11 on one side of the fireproof compartment wall W, the fireproof member 11 is also installed on the other side of the fireproof compartment wall W in the same manner as described above. Finally, when the entire gap between the outer peripheral surface of each fireproof member 11 and the inner peripheral surface of the through hole Wa is filled with mortar 19 outside the fireproof partition wall W, a through structure of the fireproof partition wall W is formed. To.

The operation of the penetrating structure of the fireproof partition wall W having the above configuration will be described.
When a fire or the like occurs on one side of the fire protection compartment wall W, smoke is generated due to the combustion of the heat insulating material 10 and other materials. At this time, since the through hole Wa is blocked by the expanded refractory member 11 and the mortar 19, it is prevented that the through hole Wa becomes a smoke path, and there is an inconvenience that smoke is transmitted to the other side of the fire prevention partition wall W. It disappears.

However, with the passage of time, the fireproof member 11 on one side of the fireproof partition wall W is burnt down, and the heat insulating material 10 is heated by the heat generated by fire or combustion. Further, heat is transferred from the fluid pipe S to the heat insulating material 10. Then, the bubbles of the heat insulating material 10 expand, and the heat insulating material 10 itself tries to expand.

However, on the other side of the fire protection compartment wall W, expansion of the heat insulating material 10 in the diameter expansion direction in the through hole Wa is prevented by the mortar 19 and the fire protection compartment wall W. Further, on the outside of the fireproof partition wall W, expansion of the heat insulating material 10 in the diameter-expanding direction is prevented by the fastening member 40 and the auxiliary fastening member 41. Since the mating surfaces 17 of the refractory members 11 are butted against each other, it is possible to prevent the heat insulating material 10 from expanding between the mating surfaces 17. Further, beyond the long edge 22a of the heat-expandable refractory layer 22 along the axial direction of the fluid pipe S, the extending portion 13 is in close contact with the heat insulating material 10 by the auxiliary fastening member 41. Therefore, the expansion of the heat insulating material 10 in the axial direction of the fluid pipe S is prevented.

After that, when the heat-expandable refractory layer 22 is heated, it expands. The fastening member 40 and the auxiliary fastening member 41 regulate the expansion of the heat-expandable refractory layer 22 in the diameter-expanding direction and the axial direction, and the heat-expandable refractory layer 22 expands toward the heat insulating material 10. As a result, the heat insulating material 10 is crushed by the expanded heat-expandable refractory layer 22, and the gap formed by burning the heat insulating material 10 is filled.

According to the above embodiment, the following effects can be obtained.
(1) Only the first end portion 15 of the refractory member 11 wound around the heat insulating material 10 is inserted into the through hole Wa. Further, the fireproof member 11 is fastened by a metal fastening member 40 on the outside of the fireproof partition wall W. Therefore, even if the heat insulating material 10 tries to expand in the diameter-expanding direction due to the heat generated when a fire or the like occurs, the fireproof partition walls 11 up to the position where the fastening member 40 is fastened from the fireproof partition wall W. The W and the fastening member 40 can prevent the heat insulating material 10 from expanding in the diameter-expanding direction. Since the heat insulating effect is enhanced as in the present embodiment, even if the heat insulating material 10 has a very large expansion amount, the fireproof partition wall W and the fastening member 40 can prevent the heat insulating material 10 from expanding in the diameter expansion direction.

As a result, the state in which the heat insulating material 10 is surrounded by the heat-expandable refractory layer 22 can be maintained, and as a result, the heat-expandable refractory layer 22 can be expanded toward the heat insulating material 10, and the heat insulating material 10 is burnt down. The formed gap can be filled. Therefore, due to the penetrating structure using the fireproof member 11, the fireproof performance can be exhibited even in the fireproof partition wall W through which the heat insulating material 10 penetrates.

(2) The fastening member 40 is made of steel wire. Therefore, the fastening member 40 does not melt or extend even when it receives heat such as a fire, and the fastening member 40 can maintain a state in which the mating surfaces 17 of the refractory member 11 are butted against each other. Therefore, unlike the case where both ends of the refractory member 11 in the longitudinal direction Y1 are overlapped and pasted by adhesion, the adhesive surface does not melt and the refractory member 11 does not open. Further, it is not necessary to wind the refractory member 11 around the heat insulating material 10 in multiple layers to maintain the state in which the refractory member 11 surrounds the heat insulating material 10, and the cost required for installing the through structure can be suppressed.

(3) The fireproof member 11 is installed by inserting only the first end portion 15 into the through hole Wa, and the entire fireproof member 11 is not inserted into the through hole Wa. Therefore, when the refractory member 11 is installed, whether or not the mating surfaces 17 at the first end portion 15 of the refractory member 11 are abutted can be visually recognized from the outside of the refractory partition wall W. Further, as compared with the case where the heat insulating material 10 is inserted into the through hole Wa while the mating surfaces 17 are kept abutted against each other, the fireproof member 11 can be easily inserted into the through hole Wa and can be easily installed.

(4) The fireproof member 11 is installed by inserting the first end portion 15 side into the through hole Wa in a tubular shape and then winding the fastening member 40 around the fireproof member 11 on the outside of the fireproof partition wall W. It is said. Therefore, it is not necessary to wind the fastening member 40 around the refractory member 11 in the through hole Wa, and the workability is good.

(5) The fastening member 40 is located closer to the fire-prevention partition wall W than the position where it is half the length L of the exposed portion R so as not to be too far from the outer surface of the fire-prevention partition wall W. Therefore, even if the heat insulating material 10 tries to expand in the diameter-expanding direction, the state in which the mating surfaces 17 of the refractory members 11 are butted can be maintained.

(6) The refractory member 11 is fastened at the extension portion 13 by a metal auxiliary fastening member 41. Therefore, even if the heat insulating material 10 tries to expand in the diameter-expanding direction due to the heat generated when a fire or the like occurs, the fireproof members 11 up to the position where the auxiliary fastening member 41 is fastened from the fireproof partition wall W. The partition wall W, the fastening member 40, and the auxiliary fastening member 41 can prevent the heat insulating material 10 from expanding in the diameter-expanding direction. As a result, the state in which the heat insulating material 10 is surrounded by the heat-expandable refractory layer 22 can be maintained, and as a result, the heat-expandable refractory layer 22 can be expanded toward the heat insulating material 10, and the heat insulating material 10 is burnt down. The formed gap can be filled. Therefore, due to the penetrating structure using the fireproof member 11, the fireproof performance can be exhibited even in the fireproof partition wall W through which the heat insulating material 10 penetrates.

(7) The fastening member 40 is located at a position away from the outer surface of the fireproof partition wall W. Then, by winding the fastening member 40 around the refractory member 11, it is possible to prevent the heat insulating material 10 from expanding in the diameter-expanding direction. Therefore, simply by adding the fastening member 40, the heat insulating material 10 expands in the diameter expansion direction in the same manner as when almost the entire refractory member 11 is inserted into the through hole Wa by the fireproof partition wall W and the fastening member 40. Can be prevented. On the other hand, the refractory member 11 only inserts the first end portion 15 into the through hole Wa, and the inserted state of the refractory member 11 into the through hole Wa can be easily visually recognized. Therefore, by using the fastening member 40, when installing the refractory member 11, it is possible to easily visually recognize whether or not the mating surfaces 17 of the refractory member 11 are abutted, but in the event of a fire or the like, the heat insulating material 10 Can be prevented from expanding in the diameter expansion direction.

(8) The refractory member 11 includes a film 32, and the film 32 is wound around the heat insulating material 10 in a state of being in contact with the heat insulating material 10. The film 32 can prevent the heat-expandable refractory layer 22 from being attached to the heat insulating material 10, and the work of sliding and moving the cylindrically shaped refractory member 11 toward the through hole Wa can be easily performed.

(9) The refractory member 11 includes an extension portion 13 formed only of the base material 12. Since the heat-expandable refractory material layer 22 does not exist in the extension portion 13, the extension portion 13 can be easily aligned with the outer peripheral surface of the heat insulating material 10. Then, by winding the extending portion 13 around the heat insulating material 10 by the auxiliary fastening member 41, the extending portion 13 can be brought into close contact with the heat insulating material 10. As a result, when the heat-expandable refractory layer 22 is heated, the expanded heat-expandable refractory layer 22 leaks from between the heat insulating material 10 and the extension portion 13 in the axial direction of the fluid pipe S. Expansion can be suppressed, and the heat-expandable refractory layer 22 can be expanded toward the heat insulating material 10.

(10) The fireproof members 11 are installed on both sides of the fireproof partition wall W. Therefore, the through hole Wa can be closed even if a fire or the like occurs on any side of the fire protection partition wall W.
The above embodiment may be changed as follows.

○ As shown in FIG. 9, the extending portion 13 may be attached to the outer peripheral surface of the heat insulating material 10 by an adhesive member 50 such as a long strip-shaped aluminum tape. With this configuration, the extension portion 13 can be easily aligned with the outer peripheral surface of the heat insulating material 10 by attaching the adhesive member 50. Then, by attaching the extending portion 13 to the heat insulating material 10 by the adhesive member 50, the extending portion 13 can be brought into close contact with the heat insulating material 10. Further, the adhesive member 50 can cover the edge of the extending portion 13. As a result, when the heat-expandable refractory layer 22 is heated, the expanded heat-expandable refractory layer 22 leaks from between the heat insulating material 10 and the extension portion 13 in the axial direction of the fluid pipe S. Expansion can be suppressed, and the heat-expandable refractory layer 22 can be expanded toward the heat insulating material 10.

○ The penetrating structure of the fireproof partition wall W may be installed on only one side in the thickness direction of the fireproof partition wall W.
○ In the extending portion 13, an adhesive layer may be provided on the surface facing the outer peripheral surface of the heat insulating material 10, and the extending portion 13 may be directly attached to the outer peripheral surface of the heat insulating material 10 by the adhesive layer.

○ The auxiliary fastening member 41 may be a band-shaped aluminum band, a string-shaped wire, a number wire, or the like, instead of the string-shaped bind wire.
○ The fastening member 40 may be a band-shaped aluminum band, a string-shaped wire, a number wire, or the like, instead of the string-shaped bind wire.

○ The auxiliary fastening member 41 may be provided not in the extending portion 13 but in the portion where the heat-expandable refractory material layer 22 exists. Further, the auxiliary fastening member 41 may be provided in the extending portion 13 and may be further provided at a position between the auxiliary fastening member 41 and the fastening member 40.

○ In the embodiment, the refractory member 11 is tightened by the fastening member 40 and the auxiliary fastening member 41 in a state where the mating surfaces 17 at both ends of the fireproof member 11 in the longitudinal direction Y1 are butted, but the present invention is not limited to this. The refractory member 11 may be tightened by the fastening member 40 and the auxiliary fastening member 41 in a state where the refractory member 11 is extended in the longitudinal direction Y1 and the polymerized ends 18 of the fireproof member 11 are overlapped with each other.

○ In a state where both ends of the refractory member 11 in the longitudinal direction are abutted by the fastening member 40, it is sufficient that the short edges 12b of the base material 12 of the base material 12 are butted against each other, and the short edges 22b of the heat-expandable refractory material layer 22 and The short edges 32b of the film may be separated.

○ The shape of the refractory member 11 is not limited to the embodiment. The length of the refractory member 11 in the longitudinal direction Y1 and the length in the lateral direction Y2 may be appropriately changed.
○ The extension portion 13 of the refractory member 11 may not be provided.

○ The film 32 of the refractory member 11 may be omitted.
○ The material of the base material 12 may be changed to another material as long as it is flexible and nonflammable.

The edge of the refractory member 11 along the direction of winding around the heat insulating material 10 may be the short edge 12b of the base material 12, the short edge 32b of the film of the heat-expandable refractory layer 22, and the short edge 32b of the film. ..

○ The fluid flowing through the fluid pipe S may be other fluid such as water instead of the refrigerant.
○ The fireproof partition wall W may be other than a concrete wall as long as it can prevent the heat insulating material 10 from expanding in the diameter expansion direction, and may be made of, for example, a rigid polyurethane foam or a rock wool moisturizing plate.

R ... Exposed part, S ... Fluid pipe, W ... Fireproof partition wall, Wa ... Through hole, Y1 ... Longitudinal direction as the first direction, Y2 ... Short direction as the second direction, 10 ... Insulation material, 11 ... Fireproof Member, 12 ... base material, 13 ... extension part, 15 ... first end part as insertion part, 19 ... mortar as filler, 22 ... heat-expandable refractory layer, 40 ... fastening member, 41 ... auxiliary Fastening member, 50 ... Adhesive member.

Claims (4)

It is a penetrating structure of the fire-retardant compartment wall, which is composed of a fire-resistant member installed at a place where a metal fluid pipe covered with a heat insulating material made of an independent foam material penetrates a through-hole of the fire-retardant compartment wall.
The refractory member has a flexible rectangular sheet-shaped base material and a rectangular heat-expandable refractory material layer laminated on one surface of the base material.
In the refractory member, the extending direction of one edge of the base material is defined as the first direction, and the extending direction of the other edge orthogonal to the one edge is defined as the second direction.
The refractory member is wound around the heat insulating material in a state where the ends located at both ends in the first direction are abutted or overlapped with each other, and the heat insulating material is surrounded by the base material and the base is formed. The heat-expandable refractory material layer is interposed between the material and the heat insulating material in a state of surrounding the heat insulating material.
A part of the base material and the heat-expandable refractory material layer located on one end side in the second direction is inserted into the through hole as an insertion portion, and the second direction of the refractory member is more than the insertion portion. The other end side is exposed to the outside of the fireproof partition wall as an exposed portion.
The space between the inner surface of the through hole and the outer surface of the refractory member is filled with a filler.
The exposed portion is fastened in the first direction by a metal fastening member that surrounds the base material covering the heat-expandable refractory layer from the outside at a position away from the fire-prevention partition wall, and is fastened in the first direction. The state where the ends located at both ends of the are abutted or overlapped is maintained, and the state is maintained .
The length of the base material in the second direction is longer than the length of the heat-expandable refractory material layer in the second direction, and the fire-resistant member has the heat-expandability on the other end side in the second direction. It has an extension portion formed by the base material that protrudes from the refractory material layer, and has an extension portion.
In the exposed portion, the extending portion as a portion away from the fireproof partition wall from the fastening member along the second direction is provided by a band-shaped or string-shaped auxiliary fastening member that surrounds the base material from the outside. A penetrating structure of a fireproof partition wall, characterized in that it is brought into close contact with the outer peripheral surface of the heat insulating material by being tightened in the first direction. It is a penetrating structure of the fire-retardant compartment wall, which is composed of a fire-resistant member installed at a place where a metal fluid pipe covered with a heat insulating material made of an independent foam material penetrates a through-hole of the fire-retardant compartment wall.
The refractory member has a flexible rectangular sheet-shaped base material and a rectangular heat-expandable refractory material layer laminated on one surface of the base material.
In the refractory member, the extending direction of one edge of the base material is defined as the first direction, and the extending direction of the other edge orthogonal to the one edge is defined as the second direction.
The refractory member is wound around the heat insulating material in a state where the ends located at both ends in the first direction are abutted or overlapped with each other, and the heat insulating material is surrounded by the base material and the base is formed. The heat-expandable refractory material layer is interposed between the material and the heat insulating material in a state of surrounding the heat insulating material.
A part of the base material and the heat-expandable refractory material layer located on one end side in the second direction is inserted into the through hole as an insertion portion, and the second direction of the refractory member is more than the insertion portion. The other end side is exposed to the outside of the fireproof partition wall as an exposed portion.
The space between the inner surface of the through hole and the outer surface of the refractory member is filled with a filler.
The exposed portion is fastened in the first direction by a metal fastening member that surrounds the base material covering the heat-expandable refractory layer from the outside at a position away from the fire-prevention partition wall, and is fastened in the first direction. The state where the ends located at both ends of the are abutted or overlapped is maintained, and the state is maintained.
The length of the base material in the second direction is longer than the length of the heat-expandable refractory material layer in the second direction, and the fire-resistant member has the heat-expandability on the other end side in the second direction. It has an extension portion formed by the base material protruding from the refractory material layer, and the extension portion is in close contact with the outer peripheral surface of the heat insulating material by being attached to the heat insulating material by an adhesive member. penetrating structure fire compartment walls, characterized in. It is a penetrating structure of the fire-retardant compartment wall, which is composed of a fire-resistant member installed at a place where a metal fluid pipe covered with a heat insulating material made of an independent foam material penetrates a through-hole of the fire-retardant compartment wall.
The refractory member has a flexible rectangular sheet-shaped base material and a rectangular heat-expandable refractory material layer laminated on one surface of the base material.
In the refractory member, the extending direction of one edge of the base material is defined as the first direction, and the extending direction of the other edge orthogonal to the one edge is defined as the second direction.
The refractory member is wound around the heat insulating material in a state where the ends located at both ends in the first direction are abutted or overlapped with each other, and the heat insulating material is surrounded by the base material and the base is formed. The heat-expandable refractory material layer is interposed between the material and the heat insulating material in a state of surrounding the heat insulating material.
A part of the base material and the heat-expandable refractory material layer located on one end side in the second direction is inserted into the through hole as an insertion portion, and the second direction of the refractory member is more than the insertion portion. The other end side is exposed to the outside of the fireproof partition wall as an exposed portion.
The space between the inner surface of the through hole and the outer surface of the refractory member is filled with a filler.
The length of the exposed portion in the second direction is longer than the length of the insertion portion in the second direction.
The exposed portion is fastened in the first direction by a metal fastening member that surrounds the base material covering the heat-expandable refractory layer from the outside at a position away from the fire-prevention partition wall, and is fastened in the first direction. A penetrating structure of a fire-prevention partition wall, characterized in that the ends located at both ends of the above are maintained in a state of being abutted or overlapped with each other. The penetrating structure of the fireproof compartment wall according to any one of claims 1 to 3 , wherein the fireproof member is installed on both sides of the fireproof compartment wall in the thickness direction.

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