JP3053936U - Fire protection structure at the penetration of copper pipe bulkhead with heat insulation coating - Google Patents

Abstract

(57) [Abstract] [Purpose] The present invention aims to improve work efficiency and provide cost savings by using a fire protection structure of a copper pipe with a heat insulating coating that penetrates a partition wall of a building or the like. . A copper pipe with heat insulation coating (1) is inserted into a through hole (6) formed in a partition (5), and a closing member (4) is arranged on the lower surface of the through hole (6). 6) A heat-expandable refractory material (2) formed in a sheet or plate shape is disposed on the outer periphery of the heat-insulating coating of the copper tube (1) with the heat-insulating coating located on the lower side. The gap of the through-hole (6) is filled with the non-combustible fluidized / solidified filler (3).

Description

[Detailed description of the invention]

[0001]

[Industrial applications]

 The fire prevention structure of the heat-insulated copper pipe bulkhead penetration part of the present invention is to be installed in the penetration part of the partition wall such as the floor or the wall of the building such as a building which penetrates the heat insulation copper pipe.

[0002]

[Prior art]

 Conventionally, when a copper pipe with a heat insulation coating is penetrated in a partition such as a floor or a wall of a building such as a building, all gaps of the through hole are filled with a putty-like thermo-foamable refractory material, and then the through hole is provided. A cover made of an iron plate or the like in which a copper tube with heat insulation coating is cut out on the upper surface is fixed to the upper surface of the partition wall by tapping screws to form a fire protection structure.

[0003]

[Problems to be solved by the invention]

 However, the conventional fire protection structure has the following problems. (B) Since all the gaps in the through-hole must be filled with the putty-like heat-foamable refractory material, a large amount of expensive putty-like heat-foamable refractory material is required. (B) On the upper surface of the through-hole, a covering lid made of an iron plate or the like with a heat insulation coated copper tube section must be fixed to the upper surface of the partition wall with a tapping screw. The workability was extremely difficult because the specified drilling had to be provided by using an electric drill or the like for securing. (C) Since the heat-expandable refractory material to be filled was putty-like, the airtightness of the penetration was uncertain. An object of the present invention is to provide a fire prevention structure for a copper pipe partition wall with a heat insulating coating, which solves the above-mentioned problems.

[0004]

[Means for solving the invention]

 The solution is described below, following the drawings. The copper tube with heat insulation coating (1) is inserted through the through hole (6) formed in the partition wall (5), and the closing member (4) is arranged on the lower surface of the through hole (6). A thermally foamable refractory material (2) formed in a sheet or plate shape is placed around the outer periphery of the heat-insulating coating of the copper tube (1) with the heat-insulating coating located on the lower side. -The fire barrier is formed by filling the gap between the through-holes (6) with the solidified filler (3).

[0005]

[Action]

 Since the present invention has the above structure, in the event of a fire, a thermally foamable refractory material formed into a sheet or plate shape is insulated around the heat-insulating coating of the copper tube with the heat-insulating coating located below the through hole. At the same time as the spread of the coating, the foam expands several times with the pressure and reaches the copper pipe to form a strong refractory carbonized layer, thereby preventing further spread of the thermal insulation coating. In addition, a non-combustible fluidized / solidified filler such as mortar is used to fill the gaps other than the heat-foamable refractory material in the penetration portion with a high airtightness to prevent smoke and to reduce heat transfer on the back side.

[0006]

【Example】

 Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a vertical cross-sectional view showing a fire prevention structure of a copper pipe partition wall with a heat insulating coating according to the present invention, and FIG. 2 is a cross-sectional plan view of AA in FIG. In the structure according to the present invention, a copper tube (1) with heat insulation coating such as polyethylene, polyurethane or polystyrene is inserted through a through hole (6) formed in the partition wall (5), and the through hole (6) on the lower surface of the partition wall and the heat insulation coating. The gap of the copper pipe (1) is closed by a closing member (4). Next, a heat-expandable refractory material (2) formed in a sheet or plate shape is covered around the heat-insulating coating of the copper tube (1) with the heat-insulating coating on the upper surface of the through-hole (6). In such a state, the lower end of the heat-expandable refractory (2) formed into a sheet or a plate is moved and arranged so as to be positioned on the lower surface of the through hole (6). Thereafter, the non-combustible fluidized / solidified filler (3) such as mortar is densely filled so as to cover the gap of the through-hole (6). Thus, the structure of the present invention is completed. In the above-described embodiment, the shape of the closing member (4) is not necessarily limited, and any closing means may be used as long as the non-combustible fluidized / solidified filler (3) such as mortar does not fall off or fall. It is possible. In addition, the fire prevention structure is effective even when the control cable penetrates at the same time if necessary.

[0007]

[Effect of the invention]

 As described above, the present invention does not require a large amount of expensive putty-like heat-expandable refractory material, and uses a non-combustible fluidized / solidified filler such as mortar that adheres strongly to the wall of the through-hole. When all the gaps in the mouth are filled with putty-like foaming refractory material, thermal insulation coating in a narrow place to prevent the putty-like foaming refractory material from projecting to the upper surface of the through hole in case of fire There is no need to secure the cover lid made of an iron plate or the like with the copper tube section cut out to the upper surface of the partition wall with tapping screws, and the filling of the high penetration part by filling with non-combustible fluidized / solidified filler such as mortar Airtightness is ensured, work efficiency is improved, and costs can be reduced.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of the present invention.

FIG. 2 is a cut-away plan view of AA of the present invention.

[Explanation of symbols]

 1 is a copper tube with heat insulation coating 2 is a sheet or plate-shaped heat-expandable refractory material 3 is a non-combustible flowing / solidifying filler such as mortar 4 is a closing member 5 is a partition wall 6 is a through hole

Claims (1)

[Utility model registration claims] 1. A heat-insulated copper pipe (1) is inserted through a through-hole (6) formed in a partition (5), and a closing member (4) is arranged on the lower surface of the through-hole (6). A heat-expandable refractory material (2) formed into a sheet or a plate is disposed around the heat-insulating coating of the copper tube (1) with the heat-insulating coating located below the mouth (6), and then the mortar A fire-prevention measure at a penetration portion of a copper tube partition wall with heat insulation coating, characterized in that a fire-prevention partition wall is formed by filling a gap portion of the through-hole (6) with a non-combustible flowable / surfaced filler (3). Construction.