JP2017172748A - Seal structure of building penetration part, building with seal structure and power generation plant with building - Google Patents

Abstract

PROBLEM TO BE SOLVED: To perform a positive protection of fireproof seal material even if arrangement member is substantially displaced due to earthquake and the like.SOLUTION: This invention comprises an arrangement member 2 inserted into an open hole 11 formed at a wall part 1 of a building; a fireproof seal member 3 for closing spaces G between the open hole 11 and the arrangement member 2; a cover member 22 connected by the wall part 1 and rope members 27 under a state in which it can be relatively moved in respect to the arrangement member 2, having a recess part 31 opened at the wall part 1 and arranged to cover the fire-proof seal member 3; a fire-proof member 23 arranged at the recess part 31 of the cover member 22 and having a recess part 41 opened at the wall part 1; and a thermal expansion fire-proof member 24 arranged at the recess part 41 of the fire-proof member 23.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a seal structure for a building penetrating portion, a building including the seal structure, and a power plant including the building.

  The building is provided with various components such as walls, floors, and ceilings (hereinafter referred to as wall portions in the present specification), and fluid (such as supply and discharge) can be distributed outside the building. Thus, piping (arrangement member) may be provided. When such a disposing member is provided across a plurality of spaces (rooms) inside or outside the building or inside the building, a through hole is formed in the wall portion located at the disposition location and disposed in the through hole. Insert the member.

  Here, in a state where the disposing member is inserted into the through hole, a gap for disposing work or the like is provided between the through hole and the disposing member. Therefore, when a fire or the like occurs inside or outside the building, flames or smoke due to the fire circulates inside or outside the building through a gap between the through hole and the piping. There is a fear. Therefore, as a seal structure for such a building penetrating portion, a gap (space) between the through hole and the arrangement member is closed with a fireproof sealing material, thereby preventing the passage of flames, smoke, etc. inside or outside the building. I am doing so.

  And from the safety | security problem of an installation, a seal structure with higher fire resistance may be calculated | required as a seal structure of a building penetration part. For example, a reactor building in a nuclear power plant contains a nuclear reactor, turbine equipment, and the like, and therefore has a highly fire-resistant seal structure. As such a highly fire-resistant seal structure, for example, there is one described in Patent Document 1.

Japanese Patent Laying-Open No. 2015-57560

  Patent Document 1 discloses a technique in which a fireproof member is provided so as to cover a through-hole provided with a fireproof seal material, and a thermal expansion fireproof material is provided inside the fireproof member. According to this technology, even when the arrangement member is displaced due to an earthquake or the like and a gap is generated between the wall portion and the fireproof sealing material, the thermal expansion fireproof material provided on the fireproof member by heat from the fire. Expands and closes the gap, and the fireproof sealing material provided between the through hole and the disposing member can be protected.

  However, in the technique described in Patent Document 1, when the disposing member is greatly displaced due to an earthquake or the like, a thermal expansion refractory material is provided between the wall portion (refractory seal material) and the refractory member and the thermal expansion refractory material. There is a possibility that a gap that is too large to be blocked by the thermal expansion of the material will not be able to protect the fireproof sealing material provided between the through hole and the arrangement member.

  Moreover, the thermal expansion refractory material provided in the refractory member should be periodically replaced in order to guarantee its quality. However, in the technique described in Patent Document 1, in order to replace the thermal expansion refractory material, the band for fixing the refractory member to the arrangement member is removed, the refractory member is removed, and the thermal expansion refractory refractory in the refractory member is removed. After the material is taken out and filled with a new thermal expansion refractory material, the refractory member filled with the thermal expansion refractory material must be wrapped around the mounting member again and fixed with a band. It takes time.

  Further, the thermally expanded refractory material has a risk of performance deterioration after thermal expansion. That is, in the technique described in Patent Document 1, even if the thermal expansion refractory material expands due to heat from the fire and closes the gap between the wall portion and the refractory seal material, a subsequent fire or earthquake Due to the influence of the above, there is a possibility that a new gap is generated and the fireproof sealing material cannot be protected.

  The present invention has been made in view of the above problems, and firstly, it is intended to reliably protect the fireproof sealing material even when the arrangement member is largely displaced due to an earthquake or the like. The purpose is to facilitate the replacement of the expansion member, and thirdly, it is intended to protect the fireproof sealing material for a long time by the thermally expanded fireproof material.

  The seal structure of the building penetrating part according to the first invention for solving the above-mentioned problem is a disposing member inserted into a through hole formed in the wall part of the building, and between the through hole and the disposing member. A fire-resistant sealing material that closes the space; and a wall that is relatively movable with respect to the disposing member, and is connected by the cable member, and has a recess that opens on the wall side. A cover member provided so as to cover, a fireproof member provided in a recess of the cover member and having a recess opening on the wall side, and a thermal expansion fireproof material provided in the recess of the fireproof member. Features.

  The seal structure of the building penetration part according to the second invention that solves the above-described problem is the seal structure of the building penetration part according to the first invention, wherein the cover member has a shape that is narrowed away from the wall part. It is characterized by being.

  The seal structure of the building penetrating part according to the third invention for solving the above-mentioned problems is provided with an arrangement member inserted into a through hole formed in a wall part of the building, and between the through hole and the arrangement member A fire-resistant sealing material that closes the space; a fire-resistant member that has a recess that opens to the wall portion side so as to cover the fire-resistant sealing material; and a thermal expansion fire-resistant material that is provided in the recess and expands by heat. In the seal structure of the building penetration part provided with the above, the fireproof member is a divided structure including a first fireproof member and a second fireproof member, and the second fireproof member is detached from the first fireproof member. It has a space which can supply the thermal expansion refractory material to the crevice in the state.

  A seal structure for a building penetrating part according to a fourth invention that solves the above-mentioned problem is the seal structure for a building penetrating part according to the third invention, wherein a plurality of arrays are arranged in the circumferential direction so as to surround the arrangement member in the recess. And a bag-structure cartridge capable of being filled with the thermal expansion refractory material.

  A seal structure for a building penetration part according to a fifth invention for solving the above-mentioned problem is the seal structure for a building penetration part according to the fourth invention, wherein a part of the cartridges arranged in the circumferential direction is provided via a hinge. It is what is connected.

  A seal structure for a building penetration part according to a sixth invention that solves the above problem is the seal structure for a building penetration part according to the fourth or fifth invention, wherein the cartridge prevents the thermal expansion refractory material from falling off. It is characterized by having a drop-off prevention structure.

  A seal structure for a building penetrating portion according to a seventh aspect of the present invention that solves the above-described problem is a disposing member that is inserted into a through hole formed in a wall portion of the building, and between the through hole and the disposing member. A fire-resistant sealing material that closes the space; a fire-resistant member that has a recess that opens to the wall portion side so as to cover the fire-resistant sealing material; and a thermal expansion fire-resistant material that is provided in the recess and expands by heat. The thermal expansion refractory material is provided in a plurality of stages in the radial direction around the arrangement member in the recess.

  The seal structure of the building penetration part according to the eighth invention that solves the above problem is the seal structure of the building penetration part according to the seventh invention, wherein the seal structure is provided in the recess and opens in an annular shape toward the wall side. A frame member having a plurality of annular recesses, wherein the plurality of annular recesses are concentric and have different diameters, and the thermally expanded refractory material is housed in the plurality of annular recesses. It is characterized by being.

  The seal structure of the building penetration part according to the ninth invention that solves the above problem is the seal structure of the building penetration part according to the eighth invention, wherein the thermal expansion refractory material housed in the plurality of annular recesses is expanded. It is characterized by having different rates.

  A building according to a tenth invention for solving the above-described problems is characterized by including the seal structure for the building penetrating portion according to any one of the first to ninth inventions.

  A power plant according to an eleventh invention for solving the above-mentioned problems is characterized by comprising the building according to the tenth invention.

  According to the seal structure of the building penetrating portion according to the first invention, the cover member can be moved relative to the mounting member even when the mounting member is largely displaced due to an earthquake or the like. Are connected by the rope member, so that they are not greatly displaced with respect to the wall portion. Therefore, there is no gap between the fireproof member and the thermal expansion refractory material provided in the recess of the cover member and the thermal expansion refractory material so that it cannot be blocked by the thermal expansion of the thermal expansion refractory material. The fireproof sealing material provided between the installation members can be reliably protected.

  According to the seal structure of the building penetrating portion according to the second invention, even if the disposing member is displaced due to an earthquake or the like, and the refractory member and the thermally expanded refractory material are moved away from the wall portion, the refractory member In addition, the thermally expanded refractory material can be held in the vicinity of the wall portion and the refractory seal material by the cover member.

  According to the seal structure of the building penetrating portion according to the third invention, the thermally expanded refractory material provided in the recess can be replaced by detaching the second refractory member from the first refractory member. That is, since it is possible to replace the thermally expanded refractory material without removing the entire refractory member from the arrangement member, it is possible to reduce the time required for the replacement work.

  According to the seal structure of the building penetrating portion according to the fourth invention, by providing the bag-structure cartridge, the thermal expansion refractory material can be exchanged smoothly, and the time required for the exchange work can be further shortened.

  According to the seal structure of the building penetrating portion according to the fifth invention, by connecting a part of the cartridge via the hinge, the thermal expansion refractory material can be exchanged smoothly and the time required for the exchange work can be further shortened. be able to.

  According to the seal structure of the building penetrating portion according to the sixth aspect of the invention, by providing the cartridge with a dropout prevention structure, it is possible to prevent the thermal expansion refractory material from falling off the cartridge when the thermal expansion refractory material is replaced. . Therefore, it is possible to smoothly exchange the thermally expanded refractory material and to further reduce the time required for the exchange work.

  According to the seal structure of the building penetration part according to the seventh aspect of the invention, the thermal expansion refractory material can be thermally expanded stepwise by providing the thermal expansion refractory material in a plurality of stages in the radial direction.

  According to the seal structure of the building penetration part according to the eighth invention, the structure in which the thermally expanded refractory material is provided in a plurality of stages in the radial direction by the frame member can be simplified.

  According to the seal structure of the building penetration part according to the ninth invention, the performance as the seal structure of the building penetration part can be maintained by changing the expansion coefficient of the thermal expansion refractory material provided in multiple stages in the radial direction. it can.

  According to the building which concerns on 10th invention, high safety | security or maintainability can be ensured as a seal structure of the building penetration part in a building.

  According to the power plant according to the eleventh invention, high safety or maintainability can be ensured as the seal structure of the building penetration portion in the power plant.

It is explanatory drawing which shows the seal structure of the building penetration part which concerns on Example 1. FIG. It is explanatory drawing which shows the effect | action of the seal structure of the building penetration part which concerns on Example 1. FIG. It is explanatory drawing which shows the effect | action of the seal structure of the building penetration part which concerns on Example 1. FIG. It is explanatory drawing which shows the seal structure of the building penetration part which concerns on Example 2. FIG. FIG. 10 is an explanatory view showing a modified example of the cartridge in the seal structure of the building penetration part according to the second embodiment. It is explanatory drawing (VV arrow sectional drawing in FIG. 3) which shows the seal structure of the building penetration part which concerns on Example 2. FIG. 6 is a perspective view showing a cartridge in a seal structure of a building penetration part according to Embodiment 2. FIG. It is explanatory drawing (VII-VII arrow sectional drawing in FIG. 3) which shows the seal structure of the building penetration part which concerns on Example 2. FIG. It is explanatory drawing which shows the effect | action of the seal structure of the building penetration part which concerns on Example 2. FIG. It is explanatory drawing (equivalent to VV arrow sectional drawing in FIG. 3) which shows the effect | action of the seal structure of the building penetration part which concerns on Example 2. FIG. It is explanatory drawing (equivalent to VV arrow sectional drawing in FIG. 3) which shows the effect | action of the seal structure of the building penetration part which concerns on Example 2. FIG. It is explanatory drawing which shows the seal structure of the building penetration part which concerns on Example 3. FIG. It is explanatory drawing which shows the effect | action of the seal structure of the building penetration part which concerns on Example 3. FIG. It is explanatory drawing which shows the effect | action of the seal structure of the building penetration part which concerns on Example 3. FIG. It is explanatory drawing which shows the modification of the seal structure of the building penetration part which concerns on Example 3. FIG.

  Hereinafter, an embodiment of a seal structure for a building penetrating portion according to the present invention will be described in detail with reference to the accompanying drawings. In addition, the Example described below employ | adopts the seal structure of the building penetration part which concerns on this invention for the building which accommodates the turbine equipment etc. in a power plant.

  Of course, the present invention is not limited to the following embodiments, and is a building in which a through hole is formed in a wall portion and a disposing member is disposed, and may be employed in other buildings in a power plant. You may employ | adopt for the various buildings in etc. It goes without saying that various modifications can be made without departing from the spirit of the present invention.

[Example 1]
The seal structure of the building penetration part according to the first embodiment of the present invention will be described with reference to FIG.

As shown in FIG. 1, the wall portion 1 constituting a part of the building, the first space (in FIG. 1, the left side space) S ₁ and in the second space (Fig. 1, right Side space) S ₂ .

The wall portion 1 is provided with a through-hole 11 that passes through the wall portion 1 in the axis O direction (a direction orthogonal to the wall portion 1 and in the left-right direction in FIG. 1). 11, a disposing member (in this embodiment, a pipe member) 2 extending along the direction of the axis O is inserted. In other words, mounting member 2 is provided across the first space S ₁ by being inserted into the through hole 11 of the wall portion 1 and the second space S _2.

A fireproof sealing material 3 is provided in a space (gap) G between the through hole 11 and the arrangement member 2. The fireproof sealing material 3 is made of a fireproof material and closes the space G between the through hole 11 and the disposing member 2. Therefore, in the event of a fire, the fireproof sealing material 3 prevents the flow of flame, smoke, etc. between the first space S ₁ and the second space S ₂ .

The first space S ₁ is a space on the side where a fire is assumed to occur on the wall 1, and the first space S ₁ protects the refractory sealing material 3 from flame (heat) due to fire. A seal protection member 4 is provided. The seal protection member 4 includes a heat insulating material 21 wound around a predetermined range in the arrangement member 2, a fireproof cover member 22 covering the through hole 11, a fireproof member 23 housed in the fireproof cover member 22, and thermal expansion. The refractory material 24 is generally configured.

The heat insulating material 21 is a sheet-like material made of a material having a heat insulating property, and is wound around the radially outer side of the arrangement member 2 in the first space S ₁ . The heat insulating material 21 is configured to prevent heat (fire) from being transmitted to the thermal expansion refractory material 24 through the disposing member 2 when a fire occurs in the first space S ₁ (to make it difficult to transmit). A predetermined range from the vicinity of the through-hole 11 and the fireproof sealing material 3, that is, the fireproof cover member 22, and the fireproof member 23 and the thermal expansion fireproof material 24 housed in the fireproof cover member 22 are arranged. It is provided in the range.

  The heat insulating material 21 is wound around the arrangement member 2 so as to be slidable in the direction of the axis O (the arrangement direction of the arrangement member 2 and the left-right direction in FIG. 1). When a predetermined force in the axial direction O acts between the mounting member 2 and the mounting member 2, the heat insulating material 21 and the mounting member 2 move relatively in the direction in which the force is applied (axis O direction). It is like that.

  The fireproof cover member 22 is made of a material having fire resistance, and has a substantially conical shape (conical truncated cone) having a concave portion (inner surface) 31 that opens on the wall 1 (through hole 11) side (right side in FIG. 1). Shape). The fireproof cover member 22 includes an inclined portion (tapered portion) 32 that is inclined with respect to the axis O so as to approach the disposing member 2 as the distance from the wall portion 1 increases, and one side (wall portion) of the inclined portion 32. An orthogonal portion (disk-shaped portion) 33 extending in a direction orthogonal to the axis O from the side far from 1 and on the left side in FIG. 1 is provided.

  Of course, the cover member in the present invention has an inclined portion 32 that approaches the disposing member 2 as it moves away from the wall portion 1 as in this embodiment, that is, has a shape that narrows away from the wall portion 1. As long as it is, it is not limited to a truncated cone shape as in this embodiment. The cover member in the present invention may be in the shape of a truncated pyramid, a cone or a pyramid, for example.

  The orthogonal part 33 of the fireproof cover member 22 is provided with an insertion hole 34 penetrating in the direction of the axis O in the approximate center of the orthogonal part 33, and the heat insulating material 21 is wound around the insertion hole 34. The disposing member 2 is inserted.

The fireproof cover member 22 includes a first joint member 25 having a connection hole 25a on the radially outer side of the inclined portion 32 and on the other side in the axis O direction (the side closer to the wall portion 1; located on a side) is provided, on the wall 1, the second coupling member 26 is first space S ₁ side (in FIG. 1 are provided located on the left side) with a coupling hole 26a The first joint member 25 and the second joint member 26 are connected to each other by wires (wire members) 27 inserted through the connection holes 25a and 26a.

  That is, the fireproof cover member 22 is connected to the wall portion 1 via the wire 27, and is perpendicular to the wall portion 1 in the direction along the wall portion 1 (vertical direction in FIG. 1) and the wall portion 1. The movement is permitted in the direction of movement (the direction of the axis O and the left-right direction in FIG. 1). Therefore, the wall part 1 and the fireproof cover member 22 can move relatively by vibration such as an earthquake.

  The refractory member 23 is made of a material having fire resistance, and has a substantially conical shape (conical truncated cone shape) along the inner surface 31 of the refractory cover member 22 and having a concave portion 41 opened to the wall 1 (through hole 11) side. Is. That is, the fireproof member 23 is provided so as to cover the inner surface (concave portion) 31 of the fireproof cover member 22. Further, the fireproof member 23 is provided with an insertion hole 42 that is coaxial with and has the same diameter as the insertion hole 34 in the fireproof cover member 22, and the disposing member 2 around which the heat insulating material 21 is wound is inserted into the insertion hole 42. It is inserted.

  The thermal expansion refractory material 24 is made of a material having fire resistance and a high coefficient of thermal expansion, and is provided so as to fill the concave portion 41 of the refractory member 23. That is, the thermally expanded refractory material 24 has a substantially conical shape (conical truncated cone shape) along the concave portion 41 of the refractory member 23. The thermal expansion refractory material 24 is provided with an insertion hole 51 that is coaxial and has the same diameter as the insertion hole 34 of the fireproof cover member 22 and the insertion hole 42 of the refractory member 23. The arrangement member 2 around which 21 is wound is inserted.

  The effect | action of the seal structure of the building penetration part which concerns on Example 1 of this invention is demonstrated with reference to FIG.1, FIG.2A and FIG.2B.

First, when a fire occurs in the first space S ₁ , the space (gap) G between the through hole 11 and the arrangement member 2 is closed by the fireproof sealing material 3 filled without a gap. Therefore, flames or smoke due to a fire does not circulate from the _first space S ₁ to the second space S ₂ (see FIG. 1).

Further, the fireproof sealing material 3 filled in the space (gap) G between the through hole 11 and the arrangement member 2 is covered with the seal protection member 4 in the first space S ₁ . That is, since the fireproof sealing material 3 is protected from a fire flame (heat) by the seal protection member 4, the seal protection member 4 can be used even when the fireproof sealing material 3 is deteriorated due to an earthquake or the like. Exerts its function as a fireproof sealant. Therefore, sufficient fireproof performance in the seal structure of the building penetrating portion can be ensured.

Next, when the building vibrates due to the earthquake and the arrangement member 2 moves to the one side in the axis O direction (left side in FIG. 2A) with respect to the wall portion 1, the wall portion 1 (fireproof sealant) A gap g ₁ is generated between 3) and the seal protection member 4 (see FIG. 2A).

Since the thermal expansion refractory material 24 in the seal protection member 4 is exposed to a fire flame (heat) due to the occurrence of the gap g ₁ , it causes thermal expansion. The thermal expansion of the thermally expanded refractory material 24 proceeds along the wall 1 so as to close the gap g ₁ , and the refractory seal material 3 is covered with the thermally expanded thermal expanded refractory material 24 and fire flame ( Protected from heat). Therefore, even when the fireproof sealing material 3 is deteriorated due to an earthquake or the like, the fired thermal expansion material 24 that has been thermally expanded can ensure sufficient fireproof performance as the seal structure of the building penetration portion.

  The seal protection member 4 is connected to the wall portion 1 via the wire 27 and is in a state in which movement with respect to the wall portion 1 is allowed. Can be moved to. Therefore, the seal protection member 4 can be obtained without damaging the connecting portion (the first joint member 25, the second joint member 26 and the wire 27) of the fireproof cover member 22 and the wall portion 1 and the arrangement member 2 due to the vibration of the earthquake. And the arrangement | positioning member 2 can move to the axis line O direction with respect to the wall part 1. FIG.

  Further, when the seal protection member 4 and the disposing member 2 are moved by an allowable amount due to the connection via the wire 27, the seal protection member 4 is restricted from moving with respect to the wall portion 1 via the wire 27. A predetermined force in the direction of the axis O acts between the seal protection member 4 (the heat insulating material 21) and the arrangement member 2. When a predetermined force in the direction of the axis O acts, the seal protection member 4 (the heat insulating material 21) and the disposing member 2 move (slide) relatively, and only the disposing member 2 is against the wall portion 1. It moves in the direction of the axis O.

Therefore, when the disposing member 2 is largely displaced, the seal protection member 4 is moved by an allowable amount by the wire 27, and the disposing member 2 is further moved (displaced greatly) with respect to the seal protecting member 4. Can do. That is, even if the disposing member 2 is greatly displaced (moved in the direction of the axis O) with respect to the wall portion 1, the seal protection member 4 is only moved by an amount of movement permitted by the connection of the wire 27. The gap g ₁ between the part 1 and the fireproof sealing material 3 and the seal protection member 4 does not increase.

Next, when the building vibrates due to the earthquake and the arrangement member 2 moves in a direction perpendicular to the axis O (the direction along the wall 1 and the vertical direction in FIG. 2B), the wall 1 There is no gap between the seal protection member 4 (see FIG. 2B). Here, in FIG. 2B, the arrangement member 2 and the seal protection member 4 are moved in a direction perpendicular to the axis O with respect to the wall portion 1, and the center axis O ₁ and the axis O of the arrangement member 2 are shown. And a distance d.

Therefore, the space (gap) G between the through-hole 11 and the disposing member 2 is closed by the refractory sealing material 3 filled without any gap, and further covered by the seal protection member 4. The flame, smoke, etc. caused by the above will not circulate from the _first space S ₁ to the second space S ₂ . Therefore, sufficient fireproof performance in the seal structure of the building penetrating portion can be ensured.

  Since the seal protection member 4 is connected to the wall portion 1 via the wire 27 and is allowed to move relative to the wall portion 1, the seal protection member 4 is orthogonal to the axis O with respect to the wall portion 1 together with the disposing member 2. Can move in the direction. Therefore, the seal protection member 4 can be obtained without damaging the connecting portion (the first joint member 25, the second joint member 26 and the wire 27) of the fireproof cover member 22 and the wall portion 1 and the arrangement member 2 due to the vibration of the earthquake. The disposing member 2 can move in a direction perpendicular to the axis O with respect to the wall 1.

  As described above, in the present embodiment, as the seal structure of the building penetration part, the disposing member 2 inserted through the through hole 11 formed in the wall part 1 of the building, the through hole 11 and the arrangement A fireproof sealant 3 that closes a space G between the installation member 2 and a wall (wire member) 27 that is connected to the wall 1 and a wire (wire member) 27 in a state of being movable relative to the arrangement member 2, A fireproof cover member 22 provided to cover the fireproof sealing material 3 with a recess 31 opening on the part 1 side, and a recess provided on the recess 31 of the fireproof cover member 22 and opening on the wall 1 side And a thermal expansion refractory material 24 provided in a recess 41 of the refractory member 23.

  According to this configuration, even when the disposing member 2 is largely displaced due to an earthquake or the like, the thermal expansion refractory material is provided between the wall portion 1 (refractory seal material 3), the refractory member 23 and the thermal expansion refractory material 24. A large gap that cannot be blocked by the thermal expansion of 24 does not occur, and the fire-resistant sealing material 3 provided between the through-hole 11 and the disposing member 2 and the thermally expanded thermal-expanded fire-resistant material 24 Sufficient fire resistance can be ensured as the seal structure of the building penetration.

[Example 2]
The structure of the seal structure of the building penetration part according to the second embodiment of the present invention will be described with reference to FIGS. 3 to 7 and FIGS. 9A and 9B.

As shown in FIG. 3, the wall portion 101 constituting a part of the building is composed of a first space (left side space in FIG. 3) S ₁ and a second space (right side in FIG. 3). Side space) S ₂ .

The wall portion 101 is provided with a through-hole 111 that passes through the wall portion 101 in the axis O direction (a direction orthogonal to the wall portion 101 and in the left-right direction in FIG. 3). An arrangement member (in this embodiment, a pipe material) 102 extending along the direction of the axis O is inserted through 111. That is, the disposing member 102 is provided across the first space S ₁ and the second space S ₂ by being inserted through the through hole 111 of the wall portion 101.

A fireproof sealing material 103 is provided in a space (gap) G between the through hole 111 and the arrangement member 102. The fireproof sealing material 103 is made of a fireproof material and closes the space G between the through hole 111 and the disposing member 102. Therefore, in the event of a fire, the fireproof sealing material 103 prevents the flow of flame, smoke, etc. between the first space S ₁ and the second space S ₂ .

The first space S ₁ is a space on the side where a fire is assumed to occur with respect to the wall portion 101, and the first space S ₁ protects the fireproof sealing material 103 from a flame (heat) due to a fire. A seal protection member 104 is provided. The seal protection member 104 includes a heat insulating material 121 wound around a predetermined range in the arrangement member 102, a fireproof member 122 covering the through hole 111, a cartridge 123 housed in the fireproof member 122, and a thermal expansion fireproof material 124. It is roughly composed of

The heat insulating material 121 is a sheet-like material made of a material having heat insulating properties, and is wound around the radially outer side of the disposing member 102 in the first space S ₁ . The heat insulating material 121 prevents heat from the fire (flame) from being transmitted to the thermal expansion refractory material 124 through the arrangement member 102 when a fire occurs in the first space S ₁ (to make it difficult to transmit). A predetermined range from the vicinity of the through-hole 111 and the fireproof seal material 103, that is, a range in which the fireproof member 122 and the cartridge 123 housed in the fireproof member 122 and the thermal expansion fireproof material 124 are disposed. Is provided.

  The fire-resistant member 122 is made of a material having fire resistance, and has a substantially columnar shape (cylindrical shape) having a recess 131 that opens on the wall 101 (through-hole 111) side (right side in FIG. 3). is there. The refractory member 122 includes a cylindrical portion 132 having a substantially cylindrical shape extending in parallel with the disposing member 102 (in the direction of the axis O), and one side of the cylindrical portion 132 (on the side far from the wall portion 101, left in FIG. 3). And a substantially disk-shaped disk portion 133 extending in a direction orthogonal to the axis O from the other side.

  As shown in FIGS. 3 and 5, the cylindrical portion 132 of the refractory member 122 includes a first cylindrical portion (a lower portion in FIGS. 3 and 5) 132 a provided integrally with the disk portion 133, and a disk portion. 133 and the 1st cylindrical part 132a and the 2nd cylindrical part (in FIG. 3 and FIG. 5, the upper side part) 132b provided separately are provided. That is, the refractory member 122 is divided into a disc portion (first refractory member) 133 and a first cylindrical portion (first refractory member) 132a in which a second cylindrical portion (second refractory member) 132b is detachably provided. Consists of structure.

  A fixing band 125 for fixing the second cylindrical portion 132b to the first cylindrical portion 132a is wound around the outer side of the cylindrical portion 132 in the radial direction. In addition, replacement | exchange of the thermal expansion refractory material 124 mentioned later is performed by removing the fixed band 125 from the radial direction outer side of the cylindrical part 132, and detaching | releasing the 2nd cylindrical part 132b from the 1st cylindrical part 132a.

  Of course, the refractory member in the present invention is not limited to a cylindrical shape as in this embodiment, and may be, for example, a prismatic shape, a cone shape, or a truncated cone shape.

  9A and 9B, in the state where the second cylindrical portion 132b of the refractory member 122 is detached, the portion where the second cylindrical portion 132b of the refractory member 122 is attached becomes a void 135. Therefore, the cartridges 123 (ten cartridges 123 in this embodiment) can be taken in and out (supplied and discharged) with respect to the recess 131 of the refractory member 122 using the empty space 135.

  As shown in FIG. 3, an insertion hole 134 penetrating in the direction of the axis O is provided in the disk portion 133 of the refractory member 122 at a substantially center of the disk portion 133. The disposing member 102 around which the heat insulating material 121 is wound is inserted.

  As shown in FIGS. 3 and 5, the cartridge 123 has a fan-shaped bag structure, and a plurality (ten in the present embodiment) of the cartridges 123 are arranged in the refractory member 122, that is, in the cylindrical recess 131. Is provided. That is, the cartridge 123 divides (divides) the space in the recess 131 in the refractory member 122 in the circumferential direction.

  As shown in FIGS. 3, 5, and 6, the cartridge 123 has a recess 131 of the refractory member 122 and an outer peripheral surface 141 extending along the inner surface of the cylindrical portion 132, and a heat insulating material wound around the arrangement member 102. 121, an inner peripheral surface 142 that extends along the outer surface of 121, a bottom surface 143 that connects the outer peripheral surface 141 and the inner peripheral surface 142, extends along the inner surface of the disk portion 133 (the recess 131 of the fireproof member 122), and an outer peripheral surface 141. Side surfaces 144 and 145 are provided that connect the inner peripheral surface 142 and the bottom surface 143 to partition the space in the fireproof member 122 (concave portion 131) in the circumferential direction.

  Further, the cartridge 123 contains a thermal expansion refractory material 124 and is provided with return portions (dropout prevention structures) 146 and 147 for preventing the thermal expansion refractory material 124 from falling off. The return portions 146 and 147 are one side edge portions of the outer peripheral surface 141 and the inner peripheral surface 142 (the edge portion on the opening side, the right side edge portion in FIG. 3 and the front side in FIG. 6). Side end edge).

  The return portions 146 and 147 for preventing the thermal expansion refractory material 124 from falling off are not limited to those formed on the edge portions of the outer peripheral surface 141 and the inner peripheral surface 142 as in the present embodiment, and the thermal expansion refractory fire resistance. Any material may be used as long as it provides resistance when moving in the direction in which the material 124 falls off (to the right in FIG. 3). For example, as shown in FIG. 4, the return portions 146, 147 extend toward the inside of the cartridge 123 on at least one of the outer peripheral surface 141, the inner peripheral surface 142, or the side surfaces 144, 145 of the cartridge 123. It may be formed.

  Further, as shown in FIGS. 6 and 7, the cartridge 123 is formed such that both side surfaces 144 and 145 are shorter than the outer peripheral surface 141 and the inner peripheral surface 142 in the axis O direction (left and right direction in FIG. 7). The thermal expansion refractory material 124 stored in the cartridge 123 comes into contact (close contact) with the thermal expansion refractory material 124 stored in the cartridge 123 disposed adjacent to the circumferential direction (vertical direction in FIG. 7). It is like that.

That is, the thermally expanded refractory materials 124 housed in the cartridges 123 arranged adjacent to each other in the circumferential direction are provided so as to come into contact (close contact) with each other and thermally expand due to a fire in the first space S ₁ . In this case, the refractory seal material 103 can be reliably protected by thermal expansion without any gap in the circumferential direction.

  Further, as shown in FIG. 5, some of the cartridges 123 (123b to 123e, 123f to 123i) among a plurality (ten in this embodiment) of the cartridges 123 (123a to 123j) provided side by side in the circumferential direction. Are connected via a hinge 151. The hinge 151 is provided at a corner between the outer peripheral surface 141 and at least one of the side surfaces 144 and 145, and the cartridge 123 connected via the hinge 151 is orthogonal to the axial direction (axis O direction). In FIG. 9B (see FIG. 9B).

  In this embodiment, as shown in FIG. 5, the cartridges 123a and 123j located near the second cylindrical portion 132b (upper side in FIG. 5) are not connected via the hinge 151 (independent Cartridges 123b to 123e located on one side (right side in FIG. 5) excluding the cartridge 123a, and the other side (left side in FIG. 5) excluding the cartridge 123j. The cartridges 123f to 123i located on the side) are connected via hinges 151, respectively.

  The effect | action of the seal structure of the building penetration part which concerns on Example 2 of this invention is demonstrated with reference to FIG.3, FIG.8, FIG.9A and FIG. 9B.

First, when a fire occurs in the first space S ₁ , the space (gap) G between the through hole 111 and the arrangement member 102 is closed by the fireproof sealing material 103 filled without a gap. Therefore, flames and smoke due to fire do not circulate from the _first space S ₁ to the second space S ₂ (see FIG. 3).

Further, the fireproof sealing material 103 filled in the space (gap) G between the through hole 111 and the disposing member 102 is covered with the seal protection member 104 in the first space S ₁ . That is, since the fireproof sealing material 103 is protected from the fire flame (heat) by the seal protection member 104, even when the fireproof sealing material 103 is deteriorated due to an earthquake or the like, the seal protection member 104 is used. Exerts its function as a fireproof sealant. Therefore, sufficient fireproof performance in the seal structure of the building penetrating portion can be ensured.

  Next, when the building vibrates due to the earthquake and the arrangement member 102 moves relative to the wall portion 101, a gap g is generated between the wall portion 101 (fireproof seal material 103) and the seal protection member 104 ( (See FIG. 8).

  The thermal expansion refractory material 124 in the seal protection member 104 is exposed to a fire flame (heat) due to the occurrence of the gap g, so that thermal expansion occurs. Thermal expansion of the thermally expanded refractory material 124 proceeds along the wall portion 101 so as to close the gap g, and the refractory seal material 103 is covered with the thermally expanded thermal expanded refractory material 124 and fire flame (heat Protected from). Therefore, even when the fireproof sealing material 103 is deteriorated due to an earthquake or the like, the thermal expansion fireproof material 124 that has been thermally expanded can ensure sufficient fireproof performance as the seal structure of the building penetration portion.

  Next, when it is necessary to replace the thermally expanded refractory material 124 in a periodic inspection or the like, the following replacement operation is performed.

  First, the fixing band 125 is removed from the radially outer side of the refractory member 122 (cylindrical portion 132), and the second cylindrical portion 132b is detached from the first cylindrical portion 132a and the disc portion 133 in the refractory member 122 (see FIG. 9A).

  Next, using the space 135 formed by the detachment of the second cylindrical portion 132b, the space 135 is housed in the recess 131 of the refractory member 122 and is not connected via the hinge 151 (in FIG. Pull out the cartridges 123a and 123j.

  Next, one of the cartridges 123f to 123i (left side in FIG. 9B) connected via the hinge 151 is rotated to one side in the circumferential direction in the recess 131 of the fireproof member 122 (in FIG. 9B, Rotate right).

  By this rotation, the cartridge 123i on one side (the upper side in FIG. 9B) of the cartridges 123f to 123i connected via the hinge 151 is positioned in the above-described void 135 and arranged adjacent to the circumferential direction. The cartridge 123h can be rotated around the hinge 151. That is, by rotating the cartridge 123i around the hinge 151 with respect to the cartridge 123h (left rotation in FIG. 9B), the cartridge 123i can be extracted from the recess 131.

  In the same manner as the cartridge 123i described above, the remaining cartridges 123f, 123g, and 123h of one of the cartridges 123f to 123i connected through the hinge 151 are rotated in the circumferential direction in the recess 131, and the hinge 151 is rotated. Extract from the empty space 135 in order. Thereby, one cartridge 123f-123i connected via the hinge 151 can be taken out from the recessed part 131 of the fireproof member 122. FIG.

  Next, the other cartridges 123b to 123e (on the right side in FIG. 9B) connected via the hinge 151 are extracted from the recess 131 in the same manner as the one of the cartridges 123f to 123i. Since the other cartridges 123a, 123f to 123j have already been extracted, when the cartridges 123b to 123e are rotated in the circumferential direction within the recess 131 of the refractory member 122, either the one side or the other side is selected. The direction may be rotated (right rotation or left rotation in FIG. 9B).

  Then, the thermal expansion refractory material 124 stored in the cartridges 123a to 123j extracted from the recess 131 of the refractory member 122 is taken out, and the new thermal expansion refractory material 124 is stored (filled) in the cartridges 123a to 123j. To do.

  Next, the cartridges 123 a to 123 j are accommodated in the recess 131 of the refractory member 122 by a procedure reverse to the procedure of extracting the cartridges 123 a to 123 j from the recess 131.

  That is, the other cartridges 123b to 123e and one of the cartridges 123f to 123i connected through the hinge 151 from the space 135 formed by the detachment of the second cylindrical portion 132b are refractory using the rotation by the hinge 151. The cartridges 122 a and 123 j that are not sequentially connected via the hinge 151 are stored in the recess 131 of the fireproof member 122. Then, the second cylindrical part 132 b is attached to the first cylindrical part 132 a and the disk part 133, and the fixed band 125 is attached to the radially outer side of the refractory member 122.

  With the above procedure, the replacement work of the thermally expanded refractory material 124 in the refractory member 122 is completed.

  As described above, in the present embodiment, the seal structure of the building penetration part is the arrangement member 102 inserted through the through hole 111 formed in the wall part 101 of the building, the through hole 111 and the arrangement. A fire-resistant sealing material 103 that closes the space G between the installation member 102, a fire-resistant member 122 that has a recess 131 that opens toward the wall 101 and is provided to cover the fire-resistant sealing material 103, and the recess And a thermal expansion refractory material 124 which is provided at 131 and expands by heat, and the refractory member 122 includes a first cylindrical portion (first refractory member) 132a and a second cylindrical portion (second refractory member) 132b. The thermal expansion refractory material 124 is supplied to the recess 131 in a state in which the second cylindrical portion (second refractory member) 132b is detached from the first cylindrical portion (first refractory member) 132a. OK Having a cavity 135.

  According to this configuration, since the thermal expansion refractory material 124 can be replaced without removing the entire refractory member 122 from the arrangement member 102, the time required for the replacement work can be shortened.

  When the cartridges 123a to 123j are housed in the recess 131 of the refractory member 122, the cartridge 123 and the refractory member 122 are inserted by inserting shims (thin plate members) (not shown) on the radially inner side and the radially outer side of the cartridge 123. In addition, the cartridge 123 can be smoothly moved (rotated) in the recess 131 of the refractory member 122 by preventing the cartridge 123 from being caught. That is, by using a shim (not shown), it is possible to further reduce the time required for the replacement work of the thermally expanded refractory material 24.

[Example 3]
The structure of the seal structure of the building penetration part which concerns on Example 3 of this invention is demonstrated with reference to FIG.

As shown in FIG. 10, the wall portion 201 which constitutes a part of the building is (in FIG. 10, the space on the lower side) the first space in the space (10 S ₁ and the second is the upper side A space) S ₂ is partitioned.

The wall 201 is provided with a through-hole 211 that passes through the wall 201 in the axis O direction (a direction perpendicular to the wall 201 and the vertical direction in FIG. 10). In 211, a disposing member (in the present embodiment, a pipe material) 202 extending along the direction of the axis O is inserted. That is, the disposing member 202 is provided across the first space S ₁ and the second space S ₂ by being inserted through the through hole 211 of the wall portion 201.

A fireproof sealing material 203 is provided in a space (gap) G between the through hole 211 and the arrangement member 202. The fireproof sealing material 203 is made of a fireproof material and closes the space G between the through hole 211 and the disposing member 202. Therefore, in the event of a fire, the fireproof sealing material 203 prevents the flow of flames and smoke between the first space S ₁ and the second space S ₂ .

The first space S ₁ is a space on the side on which a fire is assumed to occur with respect to the wall portion 201, and the first space S ₁ protects the fireproof sealing material 203 from a flame (heat) due to fire. A seal protection member 204 is provided. The seal protection member 204 includes a heat insulating material 221 wound around a predetermined range in the arrangement member 202, a fireproof member 222 covering the through hole 211, a frame member 223 accommodated in the fireproof member 222, and a thermal expansion fireproof material. 224 and 225.

Heat insulating material 221 is of a sheet-like made of a material having a heat insulating property is wound radially outward of the mounting member 202 in the first space S _1. The heat insulating material 221 prevents heat from the fire (flame) from being transmitted to the thermal expansion refractory materials 224 and 225 via the disposing member 202 when a fire occurs in the first space S ₁ (makes it difficult to transmit). ) And a predetermined range from the vicinity of the through hole 211 and the fireproof seal material 203, that is, the fireproof member 222 and the frame member 223 and the thermal expansion fireproof materials 224 and 225 housed in the fireproof member 222. Is provided in a range in which.

  The fire-resistant member 222 is made of a material having fire resistance, and has a substantially columnar shape (cylindrical shape) having a recess 231 that opens on the wall 201 (through hole 211) side (upper side in FIG. 10). . The refractory member 222 includes a cylindrical portion 232 having a substantially cylindrical shape extending parallel to the disposing member 202 (in the direction of the axis O), and one side of the cylindrical portion 232 (the side far from the wall portion 201, and is downward in FIG. 10. A substantially disk-shaped disk portion 233 extending in a direction orthogonal to the axis O from the side).

  Of course, the refractory member in the present invention is not limited to a cylindrical shape as in this embodiment, and may be, for example, a prismatic shape, a cone shape, or a truncated cone shape.

  The disk portion 233 of the fireproof member 222 is provided with an insertion hole 234 that penetrates in the direction of the axis O, and is positioned at the approximate center of the disk portion 233, and a heat insulating material 221 is wound around the insertion hole 234. The disposing member 202 is inserted.

  The frame member 223 has a cylindrical shape having two recesses 241 and 242 that open to the wall 201 (through hole 211) side (the upper side in FIG. 10). The frame member 223 includes an annular outer ring portion 243 that extends along the inner surface of the cylindrical portion 232, which is a recess 231 of the fireproof member 222, and is concentric with the outer ring portion 243 and has a different diameter (outer ring). An annular intermediate ring portion 244 having a smaller diameter than the portion 243, and the outer ring portion 243 and the intermediate ring portion 244 are concentric and have different diameters (the outer ring portion 243 and the intermediate ring portion 244 have a diameter larger than that). (Small) annular inner ring portion 245 and disk-like connecting portion 246 for connecting these outer ring portion 243, intermediate ring portion 244 and inner ring portion 245 on one side (lower side in FIG. 10). It has been.

  That is, the frame member 223 includes an annular first concave portion (annular concave portion) 241 formed by the outer ring portion 243, the intermediate ring portion 244, and the connection portion 246, the intermediate ring portion 244, the inner ring portion 245, and the connection portion 246. And an annular second concave portion (annular concave portion) 242 formed by. Here, the first recess 241 and the second recess 242 are annular grooves that are concentric and have different diameters, and the first recess 241 is an annular groove having a larger diameter than the second recess 242.

  That is, the first concave portion 241 and the second concave portion 242 are annular grooves provided in two steps in the radial direction in the frame member 223, and the first concave portion 241 is an annular groove positioned on the radially outer side, and the second concave portion Reference numeral 242 denotes an annular groove located on the radially inner side.

  Thermal expansion refractory materials 224 and 225 having different expansion rates are accommodated (filled) in the first recess 241 and the second recess 242. The first thermal expansion refractory material 224 accommodated in the first recess 241 is easier to solidify (not fluid) than the second thermal expansion refractory material 225 stored in the second recess 242. The second thermal expansion refractory material 225 has a higher expansion rate than the first thermal expansion refractory material 224.

  In addition, a heat insulating material 226 is provided at the bottom of the first concave portion 241 (portion on the connecting portion 246 side), and heat from the fire (flame) is caused by the heat insulating material 226 from the connecting portion 246 side to the first thermal expansion. The refractory material 224 is prevented from being transmitted (not easily transmitted).

  In addition, a heat insulating material 226 is provided on the bottom portion (the portion on the connection portion 246 side), the outer peripheral portion (the portion on the intermediate ring portion 244 side), and the inner peripheral portion (the portion on the inner ring portion 245 side) of the second recess 242. The heat insulating material 226 prevents heat from the fire (flame) from being transmitted to the second thermal expansion refractory material 225 from the connection portion 246 side, the intermediate ring portion 244 side, and the inner ring portion 245 side (not easily transmitted). It has become.

  Further, the outer ring portion 243 is formed shorter in the axis O direction than the intermediate ring portion 244 and the inner ring portion 245. And the surface 224a of the 1st thermal expansion refractory material 224 accommodated in the 1st recessed part 241 inclines toward the radial direction outer side, and is in the state which is easy to be influenced by the flame (heat) by a fire. On the other hand, the surface 225a of the second thermal expansion refractory material 225 housed in the second recess 242 is in contact with the refractory seal material 203 toward the wall 201 and is not easily affected by a flame (heat) due to a fire. is there.

  The effect | action of the seal structure of the building penetration part which concerns on Example 3 of this invention is demonstrated with reference to FIG. 10, FIG. 11A and FIG. 11B.

First, when a fire occurs in the first space S ₁ , the space (gap) G between the through hole 211 and the disposing member 202 is closed by the fireproof sealing material 203 filled without any gap. Therefore, flames and smoke due to fire do not circulate from the _first space S ₁ to the second space S ₂ (see FIG. 10).

In addition, the fireproof sealing material 203 filled in the space (gap) G between the through hole 211 and the disposing member 202 is covered with the seal protection member 204 in the first space S ₁ . That is, since the fireproof sealing material 203 is protected from the flame (heat) of a fire, even when the fireproof sealing material 203 is deteriorated due to an earthquake or the like, the seal protection member 204 is used as the fireproof sealing material. Demonstrate the function. Therefore, sufficient fireproof performance in the seal structure of the building penetrating portion can be ensured.

Next, when the building vibrates due to the earthquake and the arrangement member 202 moves with respect to the wall portion 201, a gap g ₁ is generated between the wall portion 201 (fireproof seal material 203) and the seal protection member 204. (See FIG. 11A).

At this time, the first thermal expansion refractory material 224, while located radially outside the refractory member 222, so that the surface 224a is inclined radially outwardly, fire caused by a clearance g ₁ occurs It is easy to be affected by the flame (heat).

On the other hand, the second thermal expansion refractory material 225, while located radially inward in the refractory member 222 and is in a state of being protected by the heat insulating material 226, the flame of the fire by a gap g ₁ occurs (thermal) It is hard to be influenced by. The second thermal expansion refractory material 225, so that surface 225a faces the wall portion 201 side, not susceptible to fire (heat) of the fire by a gap g ₁ has occurred.

Therefore, when the gap g ₁ is generated between the wall 201 (fireproof sealant 203) and the seal protection member 204, first, the first thermal expansion refractory material 224 is thermally expanded by a fire flame (heat). It will happen.

The thermal expansion of the first thermal expansion refractory material 224 proceeds along the wall portion 201 so as to close the gap g ₁ , and the refractory seal material 203 is covered with the thermally expanded first thermal expansion refractory material 224. Protected from fire flames (heat). Therefore, even when the fireproof seal material 203 deteriorates due to an earthquake or the like, the first thermally expanded fireproof material 224 that has been thermally expanded can ensure sufficient fireproof performance as a seal structure of the building penetration portion.

  At this time, the thermally expanded first thermally expanded refractory material 224 protects the second thermally expanded refractory material 225 from the fire flame (heat) together with the refractory seal material 203. Therefore, the second thermal expansion refractory material 225 does not thermally expand together with the first thermal expansion refractory material 224.

Then, after the first thermal expansion refractory material 224 is thermally expanded, if it deteriorates due to an aftershock or the like, a new gap g ₂ is generated between the thermally expanded first thermal expansion refractory material 224 and the wall portion 201. (See FIG. 11B).

Since the second thermal expansion refractory material 225 in the seal protection member 204 is exposed to a fire flame (heat) due to the occurrence of the gap g ₂ , it causes thermal expansion. The thermal expansion of the second thermal expansion refractory material 225 proceeds along the wall 201 so as to close the gap g ₂ , and the refractory seal material 203 is covered with the thermally expanded second thermal expansion refractory material 225. Protected from fire flames (heat). Therefore, even when the first thermal expansion material 224 deteriorates due to an aftershock or the like, the second thermal expansion refractory material 225 that has been thermally expanded can ensure further sufficient fire resistance performance as a seal structure of the building penetration portion. .

  As described above, in the present embodiment, the seal structure of the building penetrating portion has the arrangement member 202 inserted into the through hole 211 formed in the wall portion 201 of the building, the through hole 211 and the arrangement. A fire-resistant sealing material 203 that closes the space G between the installation member 202, a fire-resistant member 222 that has a recess 231 that opens toward the wall 201 and is provided to cover the fire-resistant sealing material 203, and the recess Thermal expansion refractory materials 224 and 225 which are provided on the 231 and expand by heat, and the thermal expansion refractory materials 224 and 225 are arranged in two stages (a plurality of stages) in the radial direction around the arrangement member 202 in the recess 231. ).

  According to this configuration, the first thermal expansion refractory material 224 and the second thermal expansion refractory material 225 are thermally expanded in stages, thereby sufficiently ensuring the fire resistance performance as the seal structure of the building penetration portion. .

In the present embodiment, the first thermal expansion refractory material 224 and the second thermal expansion refractory material 225 are housed in the refractory member 222. When the building vibrates due to an earthquake and the gap g ₁ is generated, Although the thermally expanded refractory material 224 is thermally expanded, the first thermally expanded refractory material 224 may be actively expanded when a fire occurs in the first space S ₁ .

For example, as shown in FIG. 12, by providing the gap d between the wall portion 201 and the refractory member 222 (cylindrical portion 232), when a fire occurs in the first space S _1, the first thermal expansion The refractory material 224 is thermally expanded. As described above, by positively expanding the first thermal expansion refractory material 224, it is possible to improve the fire resistance as a seal structure of the building penetrating portion at the time of a fire.

  Further, by reducing or increasing the gap d between the wall 201 and the refractory member 222 (cylindrical part 232), the influence on the thermal expansion of the first thermal expansion refractory material 224 by the flame (heat) of the fire, that is, The timing at which the first thermal expansion refractory material 224 causes thermal expansion can be controlled.

  The present invention relates to a seal structure for a building penetrating portion, and can be beneficially used in a power generation plant, a chemical plant, a ship, and the like that include a building that houses a gas turbine or a steam turbine.

1 Wall 2 Arrangement member (pipe material)
3 Fireproof Seal Material 4 Seal Protection Member 11 Through Hole 21 Heat Insulating Material 22 Fireproof Cover Member 23 Fireproof Member 24 Thermal Expansion Fireproof Material 25 First Joint Member 25a Connection Hole 26 Second Joint Member 26a Connection Hole 27 Wire (Rope Member)
31 Recessed part (inner surface) of fireproof cover member
32 Inclined part of fireproof cover member (tapered part)
33 Orthogonal part (disc-shaped part) of fireproof cover member
34 Fire-resistant cover member insertion hole 41 Fire-resistant member recess 42 Fire-resistant member insertion hole 51 Thermal expansion fire-resistant material insertion hole 101 Wall 102 Arrangement member (pipe material)
103 Fire-resistant seal material 104 Seal protection member 111 Through hole 121 Heat-insulating material 122 Fire-resistant member 123 Cartridge 124 Thermal expansion fire-resistant material 125 Fixed band 131 Fire-resistant member recess 132 Fire-resistant member cylindrical portion 132a Fire-resistant member first cylinder portion (first fire-resistant member Element)
132b Second cylinder portion of the refractory member (second refractory member)
133 Disc part of refractory member (first refractory member)
134 Fire-resistant member insertion hole 135 Fire-resistant member space 141 Cartridge outer peripheral surface 142 Cartridge inner peripheral surface 143 Cartridge bottom surface 144 Cartridge side surface 145 Cartridge side surface 146 Cartridge return portion (drop-off prevention structure)
147 Cartridge return (drop-off prevention structure)
151 Hinge 201 Wall 202 Installation member (pipe material)
203 Fireproof seal material 204 Seal protection member 211 Through hole 221 Heat insulation material 222 Fireproof member 223 Frame member 224 First thermal expansion fireproof material 225 Second thermal expansion fireproof material 226 Heat insulation material 231 Fireproof member recess 232 Fireproof member cylindrical portion 233 Fireproof Disc part 234 of member Refractory member insertion hole 241 First recess of frame member (annular recess)
242 Second recess of the frame member (annular recess)
243 Frame member outer ring 244 Frame member intermediate ring 245 Frame member inner ring 246 Frame member connection

Claims (11)

An arrangement member inserted through a through hole formed in the wall of the building;
A fireproof sealing material that closes a space between the through hole and the arrangement member;
A cover member that is connected by the wall member and the striated member in a state of being movable relative to the arrangement member, and has a recess opening on the wall portion side so as to cover the fireproof sealing material;
A refractory member provided in a recess of the cover member and having a recess that opens to the wall side;
A thermal expansion refractory material provided in a recess of the refractory member. The seal structure of a building penetration part according to claim 1, wherein the cover member has a shape that narrows in a direction away from the wall part. There is a disposing member inserted into a through hole formed in the wall of the building, a fireproof sealing material that closes a space between the through hole and the disposing member, and a recess opening on the wall side. In the seal structure of the building penetrating portion provided with a fireproof member provided so as to cover the fireproof sealant and a thermal expansion fireproof material provided in the recess and expanded by heat,
The fire-resistant member is a divided structure including a first fire-resistant member and a second fire-resistant member, and the thermally expanded fire-resistant material is placed in the recess in a state where the second fire-resistant member is detached from the first fire-resistant member. A seal structure for a building penetration, characterized by having a space that can be supplied. 4. The building penetrating part according to claim 3, further comprising a bag-structured cartridge that is arranged in a circumferential direction so as to surround the arrangement member in the recess and is capable of being filled with the thermally expanded refractory material. Seal structure. The seal structure for a building penetrating part according to claim 4, wherein some of the cartridges arranged in the circumferential direction are connected via a hinge. The seal structure for a building penetrating part according to claim 4 or 5, wherein the cartridge is provided with a drop-off preventing structure for preventing the thermal expansion refractory from falling off. There is a disposing member inserted into a through hole formed in the wall of the building, a fireproof sealing material that closes a space between the through hole and the disposing member, and a recess opening on the wall side. In the seal structure of the building penetrating portion provided with a fireproof member provided so as to cover the fireproof sealant and a thermal expansion fireproof material provided in the recess and expanded by heat,
The thermal expansion refractory material is provided in a plurality of stages in the radial direction around the arrangement member in the recess. A frame member provided in the recess and having a plurality of annular recesses that open annularly toward the wall portion;
The plurality of annular recesses are concentric and have different diameters,
The said thermal expansion refractory material is accommodated in the said several annular recessed part. The seal structure of the building penetration part of Claim 7 characterized by the above-mentioned. The seal structure for a building penetration part according to claim 8, wherein the thermal expansion refractory materials housed in the plurality of annular recesses have different expansion rates. A building comprising the seal structure for a building penetrating portion according to any one of claims 1 to 9. A power plant comprising the building according to claim 10.

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