JPH0519795U - Fire protection member for compartment penetration - Google Patents

Abstract

(57) [Summary] [Purpose] To obtain a fireproof material for partition penetrations made of rock wool, which has excellent workability and fire resistance. In a fireproof member to be filled in a metal tube sleeve, the fireproof member has an opening shape of the metal tube sleeve, and has a through hole corresponding to an electric wire, a cable, a refrigerant and a water supply / drainage pipe penetrating the metal tube sleeve. The thickness is 25-100
It is characterized by being mm.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a fireproof member that is filled in a metal tube sleeve through which electric wires, cables, refrigerants, and pipes for water supply and drainage that penetrate a fireproof section in a fireproof structure of a building or other building are filled.

[0002]

[Prior Art]

Conventionally, according to the standard construction specifications of the penetration section of the fire prevention section of the building structure such as Ministry of Construction and Fire Department, the metal tube sleeve of the penetration section and the wire, cable, refrigerant and water supply / drainage piping penetrating the inside are Rock wool fibers are to be filled in the gap at a density of 150 kg / m ³ or more. In the actual construction based on this instruction, loose cotton (granular cotton) and rock wool board used for heat insulation are finely crushed and packed in these gaps at the site.

[0003]

[Problems to be solved by the device]

Loose cotton (granular cotton) or rock wool board used for heat insulation in the gap between the metal tube sleeve and the electric wire, cable, refrigerant, and piping for water supply and drainage that penetrates the inside, and has a density of 150 kg / m ³ or more. It takes a lot of time and labor to crush and crush it into small pieces, and it is impossible to uniformly crush it into a density of 150 kg / m ³ or more. Therefore, there is a possibility that the prescribed fire protection performance is not satisfied. Furthermore, if the filling becomes uneven and a space is formed, internal dew condensation may occur in the space. To give an example, 150 kg / m ³ of rock wool granular cotton is placed in the gap between a metal tube sleeve with a tube diameter of 100 mm and a tube length of 1000 mm that has two commonly used refrigerant pipes with a diameter of 12 mm and 28 mm. It takes 50 to 60 minutes for each piece to be packed into the above density, and there are 20 to 30 metal tube sleeves per building on the first floor, so improvement of work difficulty and shortening of work time are issues. It was

[0004]

Means for Solving the Problems The above-mentioned problem has the opening shape of the metal pipe sleeve of the present invention, and punches according to the electric wire, the cable refrigerant and the water supply / drainage pipe (hereinafter referred to as the through pipe) penetrating the metal pipe sleeve. This is solved by a rock-wool fire prevention member for partition penetrating portions (hereinafter referred to as fire prevention member) having a portion and a thickness of 25 to 100 mm. The present invention will be described below.

The fireproof member is obtained by adjusting and molding rock wool so as to have a density of 150 kg / m ³ and a thickness of 25 to 100 mm to obtain a rock wool board. It can be obtained by cutting or punching the board according to the opening shape of the metal tube sleeve, and by cutting or punching a through hole corresponding to the through pipe. The reason why the thickness is limited to 25 to 100 mm is the ease of handling and the ease of providing the through holes. That is, when the length is 25 mm or less, the number of pieces to be inserted into the metal tube sleeve increases, the work efficiency decreases, and the number of the gaps between the fireproof members increases. This is because if the thickness exceeds 100 mm, the number is small, but the size of one piece becomes large and handling becomes inconvenient. Further, if necessary, at least one slit is formed in the through hole from the outer periphery of the fire prevention member to facilitate fitting into the through pipe. The slit is most appropriately inserted depending on the number of through holes. The fire protection member may be cut in half if necessary. In any case, it is necessary to prevent the formation of gaps that adversely affect fire protection and dew condensation. It is also extremely preferable in actual work to insert the fireproof member into the metal tube sleeve in advance and to penetrate the through-hole of the fireproof member with the through pipe to prepare the fireproof unit for the compartment penetration part made of rock wool. In particular, it is preferable to seal 5 to 20 mm at both ends of the metal tube sleeve with a fireproof putty because the handleability and maintainability are excellent.

[0006]

[Action]

 Since the fire protection member of the present invention has an opening shape of a metal tube sleeve and has through holes corresponding to electric wires, cables, refrigerants and pipes for water supply / drainage which penetrate the metal tube sleeve, it can be inserted into the metal tube sleeve. Since a slit is provided in the through hole from the outer periphery of the fire protection member as required, even if a metal pipe sleeve and wires, cables, refrigerant and water supply and drainage pipes are already set at the construction site, the present invention It is easy to insert the fire protection member of the above into the metal tube sleeve. Further, since the fireproof member of the present invention has a thickness of 25 to 100 mm, it is easy to handle, and it can be inserted into the metal tube sleeve without any gap, which is excellent in workability and fireproofness.

[0007]

【Example】

An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view of the fire protection member 1, 2 is a through hole, and 3 is a slit. FIG. 2 is an explanatory view of a state in which the fire protection member 1 is inserted into the through hole 2 through the through tube 5 in a structure in which the through tube 5 penetrates the metal tube sleeve 4. FIG. 3 is a perspective view of a fire protection unit 6 made of rockwool for the compartment penetration, in which the penetration tube 5 and the fire protection member 1 are set in the metal tube sleeve 4. FIG. 4 shows various examples of slits that are inserted into the through hole 2 of the fire protection member 1 from the outer peripheral portion 7 of the fire protection member 1. The case where the fire protection member 1 of the present invention is used and the case where the conventional method is used will be compared below. The metal tube sleeve 4 having a tube inner diameter of 101.6 mm and a length of 1030 mm is inserted into a structure which penetrates two through tubes 5 having a refrigerant tube diameter of 13 mm and a length of 1300 mm and a tube diameter of 29 mm and a length of 1300 mm. A fireproof member 1 was obtained by punching a cylinder having a diameter of 102 mm from a rock wool board having a thickness of 50 mm and a density of 150 kg / mm ³ , and then punching through holes 2 having a diameter of 13 mm and a diameter of 29 mm. Twenty pieces of the fireproof material 1 of the present invention are inserted into the through hole 5 of the fireproof member 1 through the through tube 5 in a structure having the metal tube sleeve 4 passing through the through tube 5, and the rock wool partition through section is inserted. Fire protection unit 6 was obtained. The time required for insertion was measured and recorded in Table 1.

[0008]

[Comparative example]

Instead of the fire protection member of the present invention used in the examples, rock wool board finely crushed pieces were packed to a density of 150 kg / m ³ to obtain a rock wool fire protection unit for compartment penetrations. The time required for packing was measured and shown in Table 1.

Refrigerant gas was allowed to flow through the penetrating pipe 2 of the rock-wool section penetration part fire protection unit 6 obtained in Examples and Comparative Examples, and after 72 hours had elapsed, the metal sleeve was cut into half and the internal dew condensation was investigated and shown in Table 1.

[0010]

[Table 1]

[0011]

[Effect of the device]

 Since the fireproof member of the present invention has excellent workability and fireproofness as described above, it has the effect that it can be inserted into a metal sleeve accurately in a short time even at a construction site or when it is previously inserted into a metal sleeve as a unit. is there.

[Brief description of drawings]

FIG. 1 is a perspective view of a fire protection member.

FIG. 2 is an explanatory view of a state where the fire protection member is inserted into the metal tube sleeve.

FIG. 3 is a perspective view of a fireproof unit 6 for rock penetration made of rock wool.

FIG. 4 is an example of a slit.

[Explanation of symbols]

 1 fire prevention member, 2 through holes, 3 slits, 4 metal pipe sleeves, 5 through pipes, 6 rock wool compartment penetration portion fire prevention unit, 7 outer peripheral portion.

Claims (3)

[Scope of utility model registration request] 1. A fireproof member for filling a metal pipe sleeve for passing electric wires, cables, refrigerants, and pipes for water supply and drainage in a penetrating part of a fireproof compartment of a fireproof structure, wherein the fireproof member has an opening shape of the metal pipe sleeve. And, a fireproof member for partition penetrating part made of rock wool having a thickness of 25 to 100 mm, which has through holes corresponding to electric wires, cables, refrigerants and pipes for water supply / drainage penetrating the metal tube sleeve. 2. The fire preventive member for a partition penetrating portion made of rock wool according to claim 1, which has a slit reaching from the outer periphery to the punched portion. 3. The rock wool compartment penetration fire prevention member according to claim 1 is inserted into a metal tube sleeve, and an electric wire is inserted into the penetration hole.
Fireproof unit for compartment penetrations made of rock wool, which has cables, refrigerants, and piping for water supply and drainage as units.