JPH08219330A - Fireproof jig and fireproof structure of pipe penetration part using the fireproof jig - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a fireproof jig capable of improving fireproofness and workability, and a fireproof structure of a pipe penetration portion using the fireproof jig. [Structure] Pipes 10A, 10B covered with a heat insulating material
A fire-resistant jig 50 is mounted on the fire-resistant jig 50.
0 is provided in the tube penetrating portion 101. Fireproof jig 50
Is a cylindrical body 2 made of a refractory material, which is detachable at the positions corresponding to both ends of the pipe penetration portions 101 of the pipes 10A and 10B.
0, 30, and the cylindrical bodies 20, 30 are the pipes 10A, 10A.
Upper shells 21 and 31 and lower shell 2 that are sandwiched in B and can be opened and closed freely
2, 32, and both cylinders 20, 30 are connected by a pin 23 made of a solder rod or the like. Further, the pipe penetrating portion 101 has a non-combustible material (or refractory material) such as mortar.
Is filled.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fireproof jig mounted on a pipe penetrating a pipe penetrating portion of a structural member such as a floor or a wall, and a fireproof structure of the pipe penetrating portion using the fireproof jig. In particular, the present invention relates to a fire-resistant jig that is easy to install and has high fire resistance, and a fire-resistant structure of a pipe penetration portion using the fire-resistant jig.

[0002]

2. Description of the Related Art Pipe structural members such as floors and walls of buildings are formed with pipe penetrating portions through which pipes such as a water supply pipe, a distribution pipe, and a refrigerant pipe of an air conditioner penetrate. The pipe penetration part is provided with a fire resistant structure based on the Building Standards Act so that the fire does not spread through the pipe penetration part in the event of a fire. By the way, recently, a metal pipe such as a copper pipe covered with a heat insulating material such as expanded polyethylene has been used for the pipe, and the heat insulating material is combustible. Therefore, in the fireproof structure of the pipe penetrating portion of such a pipe, various measures are taken so that the fire does not spread through the heat insulating material.

As a conventional fire resistant structure for the pipe penetration part,
For example, as shown in FIG. 6, the pipe penetrating portion 10 of the partition wall 100.
1, the heat insulating material 1 of the pipe 10 is removed from the pipe penetrating portion 101 on both sides by 1 m or more to expose the metal pipe 2 to expose the inner wall surface 101a of the pipe penetrating portion 101.
And a metal pipe 2 of the pipe 10 is filled with a non-combustible material 102 such as mortar. According to the fire resistant structure, the flammable heat insulating material 1 is removed from the pipe penetrating portion 101 by 1 m or more on both sides, so that the fire spread through the heat insulating material 1 can be prevented.

Further, FIG. 7 shows the fireproof structure of the pipe penetration portion of FIG. 6, in which the metal pipe 2 which has been left exposed from the pipe penetration portion 101 is covered with a non-combustible material 103 such as rock wool or glass wool. It is a thing.

However, in the fireproof structure of the pipe penetrating portion as shown in FIGS. 6 and 7, there is a problem that the heat insulating material 1 has to be peeled off, so that there is a problem that the construction is troublesome. . Therefore, recently, a fireproof structure of the pipe penetration portion has been proposed which can be easily and quickly constructed.

As shown in FIG. 8, the fireproof structure of the pipe penetrating portion is formed by bundling the pipes 10A, 10B, 10C and 10D.
A refractory sleeve 111 made of a metal material is passed through the bundle of pipes 10A to 10D, and the refractory sleeve 11 is attached to the pipe penetration portion 101.
1 is fitted into the tubular wall plate 112, the pipes 10A to 10D are inserted into the pipe penetrating portion 101, and the fireproof sleeve 111 is fitted into the wall plate 112.
The gap between the fireproof sleeve 111 and the pipes 10A to 10D is filled with a fireproof sealant. According to this, the pipe 10
Since the heat insulating materials A to D are not peeled off, the construction can be performed easily and quickly.

[0007]

However, even in such a fireproof structure of the pipe penetration portion, there are the following unsolved problems. B) It takes time and effort to fill a space between the flammable heat insulating material and the fire resistant sleeve 111 with a heat insulating material such as a fire resistant sealing material. B), through the fireproof sleeve 111 made of a metal material,
Since heat is transmitted inside the pipe penetration portion 101, the fire resistance is reduced.

In view of the above circumstances, it is an object of the present invention to provide a fireproof jig capable of improving fireproofness and workability, and a fireproof structure of a pipe penetrating portion using the fireproof jig.

[0009]

A refractory jig according to claim 1 is a refractory jig which is mounted on a pipe covered with a heat insulating material and is provided in a pipe penetrating portion of a structural member. It has a tubular body made of a refractory material that can be attached and detached at positions corresponding to both ends in the section, and the tubular body is composed of two members that are sandwiched between pipes and openable and closably opened and closed. It is characterized by being connected by a low connecting member.

In the refractory jig of the second aspect, the connecting member is
It is characterized by being made of a material that melts in the event of a fire.

A fireproof structure for a pipe penetrating portion according to claim 3 is a fireproof structure for a pipe penetrating portion using the fireproof jig according to claim 1 or 2, wherein a heat insulating material is provided in the pipe penetrating portion of the structural member. The pipe covered with is penetrated, and a fireproof jig is attached to the pipe so that the tubular body is arranged at both ends of the pipe penetrated part, and the pipe penetrated part is filled with a noncombustible material or a fireproof material. It is characterized by

According to a fourth aspect of the present invention, there is provided a fire resistant structure for a pipe penetrating portion, wherein a fireproof structure for a pipe penetrating portion is provided, wherein a noncombustible material or a fire resistant material is provided between the tubular body and the pipe. It is characterized by

[0013]

According to the fire-resistant jig of claim 1, first, the pipe is provided between the two members of the opened cylindrical body, and the two members of the cylindrical body are closed to easily and quickly fire-proof the pipe. A jig can be attached. Next, the refractory jig is inserted into the pipe penetrating portion together with the piping, and the refractory jig is placed in the pipe penetrating portion. At that time, the cylindrical body of the fireproof jig is arranged at both ends of the pipe penetration portion. Therefore, the pipe penetrating portion is filled with a non-combustible material or a refractory material. Thus, in the event of a fire, the tubular body made of a refractory material blocks the spread of fire through the heat insulating material of the pipe at both ends of the pipe penetration portion. Therefore, the pipe can be constructed without removing the heat insulating material. Further, since the tubular bodies are connected by the connecting member having low thermal conductivity, it is possible to reduce the heat transmitted through the refractory jig.

According to the refractory jig of the second aspect, since the connecting member is formed of a material that melts in a fire,
It is possible to prevent the heat of the fire from being transmitted through the fireproof jig.

According to the fireproof structure of the pipe penetrating portion of the third aspect of the invention, the same operation as described above can be achieved.

According to the fireproof structure of the pipe penetrating portion of the present invention, since the noncombustible material or the fireproof material is provided between the tubular body and the pipe, the heat transmitted from the tubular body to the pipe can be reduced. Can be done.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. The same members as those in the conventional fireproof structure of the pipe penetrating portion shown in FIGS. 6, 7, and 8 are designated by the same reference numerals.

As shown in FIGS. 1 and 3, in the pipe penetrating portion 101 of the partition wall 100, one or a plurality of bundled pipes 10A, 10B, such as a water supply pipe, a distribution pipe, and a refrigerant pipe of an air conditioner,
As shown in FIG. 3, the pipes 10A, 10B, 10C, and 10D penetrate through the metal pipes 2A, 2B, 2C, and 2D such as copper pipes, and the heat insulating materials 1A, 1B such as foamed polyethylene. 1C and 1D are coated.

As shown in FIG. 1, a fireproof jig 50 is attached to the bundled plural pipes 10A to 10D, and the fireproof jig 50 is located at both ends (inside the pipe penetration portion 101 of the pipes 10A to 10D). It has first and second cylindrical bodies 20 and 30 which are detachable and which are made of a refractory material such as metal at positions corresponding to the left and right ends in FIG.

The first and second cylinders 20 and 30 have a congruent cylindrical shape, and the first and second cylinders 20 and 30 penetrate through the tube penetrating portion 101 in both ends (left and right ends in FIG. 1). ing. Further, the donut disk-shaped flame shield plate 20 is provided at the outer end openings of the pipe penetration portions 101 of the first and second tubular bodies 20 and 30.
a and 30a are provided, and the inner peripheral surfaces 20b and 30b of the through holes of the flame shield plates 20a and 30a are pressure-bonded to the bundled plural pipes 10A to 10D.

The first and second cylinders 20 and 30 are upper shells 21 and 31 which can be inserted into and removed from the bundled pipes 10A to 10D.
And the lower shells 22 and 32, and the upper shells 21 and 31.
The lower shells 22 and 32 have a shape in which the first and second cylindrical bodies 20 and 30 are evenly divided into two by a horizontal surface in FIG.

FIG. 2 is a development view of the fireproof jig 50.
As shown in FIG. 3, pin receiving cylinders 21a, 21b, 22a, 22b, 3 are provided on both side surfaces of the upper shells 21, 31 and the lower shells 22, 32.
1a, 31b, 32a, 32b are formed with their respective pin holes directed in the same direction as the pipes 10A to 10D. Further, the pin receiving cylinders 21a and 22a on one side surface of the upper shell 21 and the lower shell 22 of the first cylindrical body 20 communicate with the pin holes, and the pin receiving cylinders 21a and 22a have pin holes. One end of a pin 23 formed of a material such as solder or plastic that is melted by heat at the time of fire penetrates. Accordingly, the upper shell 21 and the lower shell 22 of the first tubular body 20 are rotatable about the pin 23, that is, openable and closable.

Further, the upper shell 21 and the lower shell 2 of the first cylindrical body 20.
The pin receiving cylinders 21b and 22b on the other side surface of 2 are the upper shell 21
When the lower shell 22 and the lower shell 22 are rotated about the pin 23 and closed, the pin holes are arranged to communicate with each other, and the pin receiving cylinder 22b of the lower shell 22 is located on the second cylindrical body 30 side. Is located in. In the pin receiving cylinder 22b of the lower shell 22,
A pin 24 similar to the pin 23 is inserted and fixed at one end by tightening, and the other end of the pin 24 extends toward the second tubular body 30 side. One end of the pin 24 penetrates through the pin receiving cylinder 22b and slightly projects, and the projecting portion 24a has an upper shell 2
1 and the lower shell 22 are closed, the pin shell 2 of the upper shell 21
Insert and lock in the pin hole of 1b.

The upper shell 31 and the lower shell 3 of the second tubular body 30
2 side (pin 24 side) side pin receiving cylinders 31a, 32
a has the pin holes communicating with each other, and the pin receiving barrel 31
The other end of the pin 24 penetrates through the pin holes of a and 32a. Thereby, the upper shell 31 and the lower shell 32 of the second tubular body 30
Is rotatable about the pin 24, that is, openable and closable.

When the upper shell 31 and the lower shell 32 are rotated around the pin 24 and closed, the pin receiving cylinders 31b and 32b on the other side surfaces of the upper shell 31 and the lower shell 32 of the second tubular body 30 are closed. To
The pin holes are arranged so as to communicate with each other, and the pin receiving cylinder 32b of the lower shell 32 is located on the first cylinder 30 side. The pin 2 is attached to the pin receiving barrel 32b of the lower shell 32.
The other end of the pin 3 is inserted and fastened and fixed, and the other end of the pin 23 penetrates the pin receiving cylinder 32b and slightly projects.
When the upper shell 31 and the lower shell 32 are closed, the projecting portion 23a is inserted and locked in the pin hole of the pin receiving cylinder 31b of the upper shell 31.

Further, from the above, the pin 23 includes the pin receiving cylinder 22a of the lower shell 22 of the first cylindrical body 20 and the second cylindrical body 3.
0 between the pin receiving cylinders 32b of the lower shell 32, and the pin 24 is a pin receiving cylinder 22b of the lower shell 22 of the first cylindrical body 20 and a pin receiving cylinder of the lower shell 32 of the second cylindrical body 30. Since the cylinders 32a are connected to each other, the pins 23 and 24 also serve as a connecting member for connecting the first cylinder 20 and the second cylinder 30.

A non-combustible material (or refractory material) 41 is filled between the first cylindrical body 20 and the pipes 10A to 10D,
Similarly, between the second tubular body 30 and the pipes 10A to 10D,
A non-combustible material (or refractory material) 42 is filled.

As shown in FIG. 1, the pipe penetrating portion 101 is filled with a non-combustible material (or fire resistant material) 102 such as mortar so as to bury the fire resistant jig 50 and the pipes 10A to 10D.

Since the fire-resistant jig 50 and the like have the above-described structure, the pipes 10A to the pipe penetrating portion 101 of the partition wall 100 to
The construction of D can be easily performed as follows.

First, as shown in FIG.
The first and second cylindrical bodies 2 of the fireproof jig 50 are bundled with A to D.
Non-combustible materials (or refractory materials) 41 and 42 such as rock wool and glass wool are attached to the positions where 0 and 30 are attached by a predetermined thickness.

Next, the first and second cylindrical bodies 2 in the opened state
The portions of the pipes 10A to 10D in which the non-combustible materials (or refractory materials) 41 and 42 are wound are fitted to the lower shells 22 and 32 of 0 and 30, respectively, and the first and second cylindrical bodies 20 and 30 are provided. Close the shells 21 and 31. Then, in the first cylindrical body 20, the protruding portion 24a of the pin 24 is inserted and locked into the pin receiving cylinder 21b of the upper shell 21, and the state is maintained, and in the second cylindrical body 30, the upper shell 31 of the upper shell 31 is retained. The protruding portion 23a of the pin 23 is inserted and locked in the pin receiving cylinder 31b to hold the state. Therefore, in the fire-resistant jig 50 of the above-mentioned embodiment, the upper shell 2 of the first and second cylindrical bodies 20, 30 is
Since the fireproof jig 50 can be attached to the pipes 10A to 10D simply by closing the pipes 1 and 31, the attachment can be performed easily and quickly as compared with the conventional case.

In this installation, the noncombustible material (or refractory material) 4 is provided between the tubular bodies 20 and 30 and the pipes 10A to 10D.
Since 1 and 42 are provided, the heat transfer from the tubular bodies 20 and 30 to the pipes 10A to 10D can be blocked by the noncombustible material (or refractory material) 41 and 42.

Further, in this mounting, as shown in FIG. 1, the pipes 10A to D are shown in FIG. 3 by the inner peripheral surfaces 20b and 30b of the flame shield plates 20a and 30a of the first and second cylindrical bodies 20 and 30, respectively. The heat insulating materials 1A to D are tightened.

Next, as shown in FIG. 1, the pipe 10A
~ D together with the fireproof jig 50 is inserted into the pipe penetration portion 101,
The refractory jig 50 is arranged in the pipe penetration portion 101. At that time, the first and second cylindrical bodies 21 and 31 of the fire-resistant jig 50 are arranged at both ends (left and right ends in FIG. 1) of the pipe penetrating portion 101. Therefore,
The pipe penetrating portion 101 is filled with 102 such as mortar.
Then, the fire-resistant jig 50 has the first and second cylindrical bodies 20, 30.
The flame shield plates 20a and 30a of the
In A to D, only the portions protruding from the inner peripheral surfaces 20b and 30b forming the through holes of the flame shield plates 20a and 30a are exposed.

As described above, the pipe penetrating portion 1 of the partition wall 100.
The pipes 10A to 10D to 01 are installed. Therefore,
The pipes 10A to 10D can be installed on the pipe penetrating portion 101 without peeling off the heat insulating materials 1A to 10D of the pipes 10A to 10D. Since it can be performed easily and quickly, the pipe penetrating portion 10
It is possible to improve the workability of the pipes 10A to 10D to 1.

Next, regarding the fire resistance in case of fire, the partition wall 10
A description will be given assuming that a fire has occurred on one side of 0.

At this time, since the heat insulating materials 1A to 1D of the pipes 10A to 10D shown in FIG.
Fire is spread toward the pipe penetration portion 101 through A to D. However, the heat insulating materials 1A to 1D have the first and second cylindrical bodies 20 and 3, respectively.
No. 0 flame shields 20a, 30a through-hole inner peripheral surfaces 20b, 3
It is clamped by 0b and its heat insulating material 1A
Since ~ D expands when heated, its tightening is
It gets even tighter. Therefore, the oxygen supply to the inside is shut off at the tightening positions of the heat insulating materials 1A to 1D. Also,
Since the flame shields 20a and 30a block the flame that goes into the pipe penetrating portion 101, the pipe penetrating portion 1 through the heat insulating materials 1A to 1D.
Fire spread to 01 can be prevented. Further, the pipe penetrating portion 101 has a non-combustible material (or refractory material) 1 such as mortar.
Since 02 is filled, the non-combustible material (or refractory material) 102 prevents the fire from spreading except through the pipes 10A to 10D.

Further, conventionally, it has been necessary to consider the case where the fire-resistant jig 50 is heated to cause the fire to spread through the pipe penetrating portion 101, but in the above-described embodiment, the exposed first and second exposed portions are used. The cylindrical bodies 20 and 30 are connected by pins 23 and 24 having low thermal conductivity, and the pins 23 and 24 are formed of a material such as solder or plastic that melts at a high temperature, so that a fire may occur. Sometimes
The first and second cylinders 20 and 30 will be separated.
Therefore, heat can be prevented from being transmitted through the fireproof jig 50, and thus the fireproofness of the pipe penetration portion 101 can be improved.

Further, in the above-mentioned embodiment, rock wool, between the first and second cylindrical bodies 20 and 30 and the pipes 10A to 10D,
Non-combustible material (or refractory material) 41, 42 such as glass wool
Is provided, the pipes 10A
The heat is transmitted to D to the pipe 10A inside the pipe penetration portion 101.
It is possible to prevent the heat insulating materials 1A to 1D of ~ D from being ignited. Therefore, the fire resistance of the pipe penetrating portion 101 can be further improved.

Incidentally, in the above embodiment, the cylindrical bodies 20, 3 are
0 is provided in a cylindrical shape so that one pipe or a bundle of pipes 10A to 10D is mounted, but as shown in FIGS. 4 and 5, two pipes or a bundle of pipes 10A to D, 10E to H are provided. It may be formed in a gourd-shaped cross section so that they can be mounted at the same time.

In the above embodiment, the pins 23,
Although it is described that 24 is made of a material that can be melted by heat, it does not necessarily have to be melted.

Further, in the present embodiment, the pipe through hole 101 of the partition wall 100 has been described as an example, but it goes without saying that it may be another structural member such as a floor.

[0043]

According to the fire-resistant jig of the first aspect of the present invention, it is possible to perform construction on the pipe penetration portion of the structural member of the pipe without peeling off the heat insulating material of the pipe. Since the fire-resistant jig can be easily and quickly attached, the workability of piping to the pipe penetrating portion of the structural member can be improved. Further, since the heat transmitted through the fire-resistant jig can be reduced, the fire resistance of the pipe penetrating portion of the structural member can be improved.

According to the refractory jig of the second aspect, in addition to the above effects, the heat transmitted through the refractory jig can be blocked, so that the fire resistance can be further improved.

The fireproof structure of the pipe penetration portion according to claim 3 has the same effect as the above effect.

According to the fire resistant structure of the pipe penetrating portion of the present invention, the heat transferred from the tubular body to the pipe can be reduced, so that the fire resistance of the pipe penetrating portion of the structural member can be further improved.

[Brief description of drawings]

FIG. 1 is a side sectional view showing an embodiment of a fireproof structure for a pipe penetration portion of the present invention.

FIG. 2 is a development view showing an embodiment of a fireproof jig of the present invention.

FIG. 3 is a front view of the fireproof jig of FIG.

FIG. 4 is a development view showing another embodiment of the fire resistant jig of the present invention.

5 is a front view of the fireproof jig of FIG. 4. FIG.

FIG. 6 is a diagram showing a first example of a conventional fireproof structure for a pipe penetration portion.

FIG. 7 is a diagram showing a second example of a conventional fireproof structure for a pipe penetration portion.

FIG. 8 is a diagram showing a third example of a conventional fireproof structure for a pipe penetration portion.

[Explanation of symbols]

 1A-D ... Heat insulating material 10A-H ... Piping 20 ... 1st cylinder 21 ... Upper shell (two members) 22 ... Lower shell (two members) 23 ... Pin (connecting member) 24 ... Pin (connecting member) 30 ... Second tubular body 31 ... Upper shell (two members) 32 ... Lower shell (two members) 41 ... Incombustible material or fireproof material 42 ... Incombustible material or fireproof material 50 ... Fireproof jig 100 ... Partition wall (structural member) 101 ... Pipe Penetration part 102 ... Incombustible material or refractory material

Claims (4)

[Claims] 1. A fireproof jig which is attached to a pipe covered with a heat insulating material and which is provided in a pipe penetrating portion of a structural member, wherein the fireproof jig is attachable to and detachable from both ends of the pipe penetrating portion. A tubular body made of a material, wherein the tubular body is composed of two members which are sandwiched in the pipe and which can be opened / closed removably, and the both tubular bodies are connected by a connecting member having low thermal conductivity. A fire-resistant jig characterized by. 2. The fire-resistant jig according to claim 1, wherein the connecting member is made of a material that melts in a fire. 3. A fireproof structure for a pipe penetrating portion using the fireproof jig according to claim 1, wherein the pipe penetrating portion of the structural member is penetrated by a pipe covered with a heat insulating material, The pipe is characterized in that the fire-resistant jig is mounted so that its tubular body is arranged at both ends of the pipe penetrating portion, and the pipe penetrating portion is filled with an incombustible material or a fire-resistant material. Fireproof structure of the penetration part. 4. The fireproof structure for a pipe penetrating portion according to claim 3, wherein an incombustible material or a fireproof material is provided between the tubular body and the pipe. Fireproof structure.