JP2016089943A - Seal structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a seal structure capable of restricting the reduction of seal performance.SOLUTION: A seal structure comprises: a first seal material filled between an inner surface of an open hole and an outer surface of an arrangement component and including a first front face facing the first space side, a first rear face facing the second space side, a first outer face fixed to the inner surface of the open hole, and a first inner face relatively-movably connected to the outer surface of the arrangement component; a second seal material filled between the inner surface of the open hole and the outer surface of the arrangement component on the second space side of the first seal material and including a second front face relatively-movably connected to the first rear face, a second rear face facing the second space side, a second outer face relatively-movably connected to the inner surface of the open hole, and a second inner face fixed to the outer surface of the arrangement component; and an elastic property component disposed on the first space side of the first seal material and including a third front face facing the first space side, a third rear face relatively-movably connected to the first front face, a third outer face fixed to the inner surface of the open hole, and a third inner face fixed to the outer surface of the arrangement component.SELECTED DRAWING: Figure 1

Description

本発明は、シール構造に関する。   The present invention relates to a seal structure.

例えば発電プラントにおいては、各種の設備が建屋の内部に配置される。建屋の内部及び建屋の外部の一方から他方に流体を送るために、配管又はダクトのような配設部材が使用される。配設部材は、建屋の壁部に形成された貫通孔に配置される。津波又は河川の氾濫により、建屋の外部から建屋の内部に海水又は川水のような液体が浸入すると、建屋の内部の設備が被害を受ける可能性がある。そのため、配設部材の外面と貫通孔の内面との間隙は、シール構造によってシールされる。シール構造の一例が特許文献１に開示されている。   For example, in a power plant, various facilities are arranged inside a building. Arrangement members such as piping or ducts are used to send fluid from one of the interior of the building and the exterior of the building to the other. An arrangement | positioning member is arrange | positioned at the through-hole formed in the wall part of a building. If a liquid such as seawater or river water enters the building from the outside due to a tsunami or river flooding, the facilities inside the building may be damaged. Therefore, the gap between the outer surface of the arrangement member and the inner surface of the through hole is sealed by the seal structure. An example of a seal structure is disclosed in Patent Document 1.

特開２０１４−００５８５８号公報JP 2014-005858 A

例えば地震の発生により、建屋と配設部材との相対位置が変動すると、シール構造の少なくとも一部が変形する可能性がある。シール構造が変形すると、配設部材とシール構造との間又はシール構造の少なくとも一部に隙間が形成される可能性がある。また、シール構造が変形した状態で、津波又は河川の氾濫によりシール構造に水圧（外力）が作用すると、シール構造の少なくとも一部が破断する可能性がある。その結果、シール構造のシール性能が低下する可能性がある。   For example, when the relative position between the building and the arrangement member varies due to the occurrence of an earthquake, at least a part of the seal structure may be deformed. When the seal structure is deformed, a gap may be formed between the arrangement member and the seal structure or at least a part of the seal structure. In addition, when the seal structure is deformed and a water pressure (external force) acts on the seal structure due to a tsunami or river overflow, at least a part of the seal structure may be broken. As a result, the sealing performance of the seal structure may be reduced.

本発明の態様は、シール性能の低下を抑制できるシール構造を提供することを目的とする。   The aspect of this invention aims at providing the seal structure which can suppress the fall of a sealing performance.

本発明の態様に従えば、第１空間と第２空間とを仕切る壁部に形成された貫通孔と前記貫通孔に配置される配設部材とをシールするシール構造であって、前記貫通孔の内面と前記配設部材の外面との間に充填され、前記第１空間側を向く第１前面と、前記第２空間側を向く第１後面と、前記貫通孔の内面に固定される第１外面と、前記配設部材の外面に相対移動可能に接続される第１内面と、を有する第１シール材と、前記第１シール材よりも前記第２空間側で前記貫通孔の内面と前記配設部材の外面との間に充填され、前記第１後面に相対移動可能に接続される第２前面と、前記第２空間側を向く第２後面と、前記貫通孔の内面に相対移動可能に接続される第２外面と、前記配設部材の外面に固定される第２内面と、を有する第２シール材と、前記第１シール材よりも前記第１空間側に配置され、前記第１空間側を向く第３前面と、前記第１前面に相対移動可能に接続される第３後面と、前記貫通孔の内面に固定される第３外面と、前記配設部材の外面に固定される第３内面と、を有する伸縮性部材と、を備えるシール構造が提供される。   According to an aspect of the present invention, there is provided a seal structure that seals a through hole formed in a wall portion that partitions the first space and the second space, and a disposing member disposed in the through hole, wherein the through hole A first front surface facing the first space side, a first rear surface facing the second space side, and a first surface fixed to the inner surface of the through hole. A first sealing material having a first outer surface and a first inner surface connected to the outer surface of the arrangement member so as to be relatively movable; and an inner surface of the through hole on the second space side with respect to the first sealing material. Relative movement to the inner surface of the through hole, the second front surface filled between the outer surfaces of the arrangement member and connected to the first rear surface so as to be relatively movable, the second rear surface facing the second space side, and A second sealing material having a second outer surface that can be connected and a second inner surface fixed to the outer surface of the arrangement member. A third front surface disposed closer to the first space than the first sealing material and facing the first space, a third rear surface connected to the first front surface so as to be relatively movable, and the through hole There is provided a seal structure including a stretchable member having a third outer surface fixed to the inner surface and a third inner surface fixed to the outer surface of the arrangement member.

本発明の態様によれば、貫通孔の内面に固定される第３外面と配設部材の外面に固定される第３内面とを有する伸縮性部材によって、第１空間から第２空間に液体が浸入することが抑制される。第１前面と第３後面とは相対移動可能であるため、壁部と配設部材とが配設部材の軸と直交する方向（軸直方向）に相対移動しても、伸縮性部材は伸縮性を阻害されずに円滑に伸縮することができる。そのため、壁部と配設部材とが軸直方向に相対移動しても、伸縮性部材の破断が抑制される。したがって、伸縮性部材のシール性能（液密性、水密性）は維持され、シール構造のシール性能の低下が抑制される。   According to the aspect of the present invention, the elastic member having the third outer surface fixed to the inner surface of the through hole and the third inner surface fixed to the outer surface of the disposing member causes the liquid to flow from the first space to the second space. Infiltration is suppressed. Since the first front surface and the third rear surface can move relative to each other, the elastic member can expand and contract even if the wall portion and the mounting member move relative to each other in the direction perpendicular to the axis of the mounting member (axial direction). It can expand and contract smoothly without impairing the properties. Therefore, even if the wall portion and the disposing member move relative to each other in the direction perpendicular to the axis, breakage of the stretchable member is suppressed. Therefore, the sealing performance (liquid tightness, water tightness) of the stretchable member is maintained, and the deterioration of the sealing performance of the seal structure is suppressed.

また、配設部材の外面と第１内面とは相対移動可能であり、第１後面と第２前面とは相対移動可能であり、貫通孔の内面と第２外面とは相対移動可能であるため、配設部材が壁部に対して第１空間側に移動するように壁部と配設部材とが配設部材の軸方向に相対移動すると、第１内面を含む第１シール材の内側部分は、第２シール材に押されて第１空間側に移動する。これにより、第１前面と第３後面とは密着し続けることができる。また、伸縮性部材は第１シール材に支持され続けるので、伸縮性部材に水圧（外力）が作用しても、伸縮性部材の破断は抑制される。そのため、壁部と配設部材とが軸方向に相対移動しても、伸縮性部材と第１シール材との間に隙間が形成されたり、伸縮性部材が破断したりすることが抑制される。したがって、シール構造のシール性能の低下が抑制される。   In addition, the outer surface of the arrangement member and the first inner surface are relatively movable, the first rear surface and the second front surface are relatively movable, and the inner surface of the through hole and the second outer surface are relatively movable. When the wall portion and the disposing member move relative to each other in the axial direction of the disposing member so that the disposing member moves to the first space side with respect to the wall portion, the inner portion of the first sealing material including the first inner surface Is moved to the first space side by being pushed by the second sealing material. Thereby, the first front surface and the third rear surface can be kept in close contact with each other. In addition, since the stretchable member continues to be supported by the first seal material, even if water pressure (external force) acts on the stretchable member, the breakage of the stretchable member is suppressed. Therefore, even if the wall portion and the disposing member move relative to each other in the axial direction, a gap is formed between the elastic member and the first sealing material, or the elastic member is prevented from breaking. . Therefore, the deterioration of the sealing performance of the seal structure is suppressed.

また、配設部材が壁部に対して第２空間側に移動するように壁部と配設部材とが配設部材の軸方向に相対移動すると、第１内面を含む第１シール材の内側部分は、伸縮性部材と一緒に、第２空間側に移動する。これにより、第１前面と第３後面とは密着し続けることができる。また、伸縮性部材は、第１シール材に支持され続けるので、伸縮性部材に水圧（外力）が作用しても、伸縮性部材の破断は抑制される。そのため、壁部と配設部材とが軸方向に相対移動しても、伸縮性部材と第１シール材との間に隙間が形成されたり、伸縮性部材が破断したりすることが抑制される。したがって、シール構造のシール性能の低下が抑制される。   In addition, when the wall portion and the disposing member move relative to each other in the axial direction of the disposing member so that the disposing member moves to the second space side with respect to the wall portion, the inside of the first sealing material including the first inner surface The part moves to the second space side together with the elastic member. Thereby, the first front surface and the third rear surface can be kept in close contact with each other. In addition, since the stretchable member is continuously supported by the first seal material, even if water pressure (external force) acts on the stretchable member, the breakage of the stretchable member is suppressed. Therefore, even if the wall portion and the disposing member move relative to each other in the axial direction, a gap is formed between the elastic member and the first sealing material, or the elastic member is prevented from breaking. . Therefore, the deterioration of the sealing performance of the seal structure is suppressed.

本発明の態様において、前記配設部材の軸方向に関して、前記第１外面の寸法は、前記第１内面の寸法よりも大きくてもよい。   In the aspect of the present invention, the dimension of the first outer surface may be larger than the dimension of the first inner surface with respect to the axial direction of the arrangement member.

これにより、第１内面を含む第１シール材の内側部分が、軸方向に円滑に変形される。   Thereby, the inner part of the first sealing material including the first inner surface is smoothly deformed in the axial direction.

本発明の態様において、前記第３前面と前記第３後面と前記第１前面とは平行であり、前記第１後面は、前記第１前面に対して傾斜してもよい。   In the aspect of the present invention, the third front surface, the third rear surface, and the first front surface may be parallel to each other, and the first rear surface may be inclined with respect to the first front surface.

これにより、第１前面と第３後面とが密着し続けた状態で、第１内面を含む第１シール材の内側部分が、軸方向に円滑に変形される。   Thereby, the inner part of the first sealing material including the first inner surface is smoothly deformed in the axial direction in a state where the first front surface and the third rear surface are kept in close contact with each other.

本発明の態様において、前記配設部材の軸方向に関して、前記第３内面の寸法は、前記第３外面の寸法よりも大きくてもよい。   In the aspect of the present invention, the dimension of the third inner surface may be larger than the dimension of the third outer surface with respect to the axial direction of the arrangement member.

これにより、伸縮性部材の強度が向上する。したがって、例えば、配設部材が壁部に対して第２空間側に移動するように壁部と配設部材とが相対移動しても、伸縮性部材の破断が抑制される。   Thereby, the intensity | strength of an elastic member improves. Therefore, for example, even if the wall portion and the disposing member move relative to each other so that the disposing member moves to the second space side with respect to the wall portion, breakage of the stretchable member is suppressed.

本発明の態様において、前記配設部材の外面と第１内面との間、前記第１後面と前記第２前面との間、前記貫通孔の内面と前記第２外面との間、及び前記第１前面と前記第３後面との間のそれぞれに配置され、前記相対移動を許容するシート状のブレーカ材を備えてもよい。   In an aspect of the present invention, between the outer surface of the arrangement member and the first inner surface, between the first rear surface and the second front surface, between the inner surface of the through hole and the second outer surface, and the first A sheet-shaped breaker material that is disposed between each of the front surface and the third rear surface and allows the relative movement may be provided.

これにより、配設部材の外面と第１内面との相対移動、第１後面と第２前面との相対移動、貫通孔の内面と第２外面との相対移動、及び第１前面と第３後面との相対移動は、円滑に行われる。   Accordingly, the relative movement between the outer surface of the arrangement member and the first inner surface, the relative movement between the first rear surface and the second front surface, the relative movement between the inner surface of the through hole and the second outer surface, and the first front surface and the third rear surface. The relative movement between and is smoothly performed.

本発明の態様によれば、シール性能の低下を抑制できるシール構造が提供される。   According to the aspect of the present invention, a seal structure capable of suppressing a decrease in seal performance is provided.

図１は、第１実施形態に係るシール構造の一例を模式的に示す断面図である。FIG. 1 is a cross-sectional view schematically showing an example of a seal structure according to the first embodiment. 図２は、第１実施形態に係るシール構造の製造方法の一例を模式的に示す断面図である。Drawing 2 is a sectional view showing typically an example of the manufacturing method of the seal structure concerning a 1st embodiment. 図３は、第１実施形態に係るシール構造の製造方法の一例を模式的に示す断面図である。Drawing 3 is a sectional view showing typically an example of the manufacturing method of the seal structure concerning a 1st embodiment. 図４は、第１実施形態に係るシール構造の動作の一例を模式的に示す断面図である。FIG. 4 is a cross-sectional view schematically showing an example of the operation of the seal structure according to the first embodiment. 図５は、第１実施形態に係るシール構造の動作の一例を模式的に示す断面図である。FIG. 5 is a cross-sectional view schematically showing an example of the operation of the seal structure according to the first embodiment. 図６は、第１実施形態に係るシール構造の動作の一例を模式的に示す断面図である。FIG. 6 is a cross-sectional view schematically showing an example of the operation of the seal structure according to the first embodiment. 図７は、比較例に係るシール構造の動作の一例を示す図である。FIG. 7 is a diagram illustrating an example of the operation of the seal structure according to the comparative example. 図８は、比較例に係るシール構造の動作の一例を示す図である。FIG. 8 is a diagram illustrating an example of the operation of the seal structure according to the comparative example. 図９は、第２実施形態に係るシール構造の一例を模式的に示す断面図である。FIG. 9 is a cross-sectional view schematically showing an example of a seal structure according to the second embodiment. 図１０は、第２実施形態に係るシール構造の動作の一例を模式的に示す断面図である。FIG. 10 is a cross-sectional view schematically showing an example of the operation of the seal structure according to the second embodiment. 図１１は、第３実施形態に係るシール構造の一例を模式的に示す断面図である。FIG. 11 is a cross-sectional view schematically showing an example of a seal structure according to the third embodiment.

以下、本発明に係る実施形態について図面を参照しながら説明するが、本発明はこれに限定されない。以下で説明する各実施形態の構成要素は、適宜組み合わせることができる。また、一部の構成要素を用いない場合もある。   Hereinafter, embodiments according to the present invention will be described with reference to the drawings, but the present invention is not limited thereto. The components of each embodiment described below can be combined as appropriate. Some components may not be used.

＜第１実施形態＞
第１実施形態について説明する。図１は、本実施形態に係るシール構造１００の一例を模式的に示す断面図である。 <First Embodiment>
A first embodiment will be described. FIG. 1 is a cross-sectional view schematically showing an example of a seal structure 100 according to the present embodiment.

シール構造１００は、第１空間ＳＰ１と第２空間ＳＰ２とを仕切る壁部２００に形成された貫通孔３００と、その貫通孔３００に配置される配設部材４００とをシールする。壁部２００は、例えば発電プラントの建屋の外壁部を含む。第１空間ＳＰ１は、建屋の外部空間を含む。第２空間ＳＰ２は、建屋の内部空間を含む。   The seal structure 100 seals the through hole 300 formed in the wall part 200 that partitions the first space SP1 and the second space SP2 and the disposing member 400 disposed in the through hole 300. The wall part 200 contains the outer wall part of the building of a power plant, for example. The first space SP1 includes an external space of the building. The second space SP2 includes the internal space of the building.

貫通孔３００は、第１空間ＳＰ１に面する壁部２００の外面２０１と、第２空間ＳＰ２に面する壁部２００の内面２０２とを結ぶように形成される。配設部材４００の一部は、貫通孔３００の内側に配置される。配設部材４００の一部は、第１空間ＳＰ１に配置される。配設部材４００の一部は、第２空間ＳＰ２に配置される。   The through hole 300 is formed so as to connect the outer surface 201 of the wall part 200 facing the first space SP1 and the inner surface 202 of the wall part 200 facing the second space SP2. A part of the disposing member 400 is disposed inside the through hole 300. A part of the arrangement member 400 is arranged in the first space SP1. A part of the disposing member 400 is disposed in the second space SP2.

建屋の外部空間ＳＰ１に海洋又は河川が存在する場合、津波又は河川の氾濫により、建屋の外部空間ＳＰ１から建屋の内部空間ＳＰ２に海水又は川水のような液体が浸入する可能性がある。建屋の内部空間ＳＰ２には、各種の設備（機器）が配置されている。建屋の外部空間ＳＰ１から建屋の内部空間ＳＰ２に液体が浸入すると、建屋の内部空間ＳＰ２の設備が被害を受ける可能性がある。   When the ocean or river exists in the building external space SP1, liquid such as seawater or river water may enter the building internal space SP2 from the building external space SP1 due to a tsunami or river overflow. Various facilities (equipment) are arranged in the interior space SP2 of the building. If the liquid enters the building internal space SP2 from the building external space SP1, the equipment in the building internal space SP2 may be damaged.

シール構造１００の少なくとも一部は、貫通孔３００の内面３０１と配設部材４００の外面４０１との間に配置される。シール構造１００は、貫通孔３００の内面３０１と配設部材４００の外面４０１との間隙をシールする。シール構造１００は、貫通孔３００の内面３０１と配設部材４００の外面４０１との間隙をシールして、第１空間ＳＰ１から第２空間ＳＰ２に液体が浸入することを抑制する。   At least a part of the seal structure 100 is disposed between the inner surface 301 of the through hole 300 and the outer surface 401 of the arrangement member 400. The seal structure 100 seals the gap between the inner surface 301 of the through hole 300 and the outer surface 401 of the arrangement member 400. The seal structure 100 seals the gap between the inner surface 301 of the through-hole 300 and the outer surface 401 of the arrangement member 400, and suppresses liquid from entering the second space SP2 from the first space SP1.

配設部材４００は、配管及びダクトの少なくとも一方を含む。配設部材４００を介して、建屋の外部空間ＳＰ１及び建屋の内部空間ＳＰ２の一方から他方に流体が送られる。例えば、配設部材４００を介して、建屋の外部空間ＳＰ１から建屋の内部空間ＳＰ２に流体が供給される。配設部材４００を介して、建屋の内部空間ＳＰ２の流体が建屋の外部空間ＳＰ１に排出される。なお、配設部材４００は、配管又はダクトのような、流体が流れる部材でもよいし、電気ケーブルのような、電流が流れる部材でもよい。配設部材４００は、軸状の部材又はチューブ状の部材であり、軸（中心軸）ＡＸを有する。配設部材４００は、中心軸ＡＸと平行な方向に長い。   The disposing member 400 includes at least one of a pipe and a duct. Through the arrangement member 400, fluid is sent from one of the building external space SP1 and the building internal space SP2 to the other. For example, the fluid is supplied from the external space SP1 of the building to the internal space SP2 of the building via the arrangement member 400. Through the arrangement member 400, the fluid in the internal space SP2 of the building is discharged to the external space SP1 of the building. The arrangement member 400 may be a member through which a fluid flows, such as a pipe or a duct, or a member through which a current flows, such as an electric cable. The disposing member 400 is a shaft-shaped member or a tube-shaped member, and has an axis (center axis) AX. The arrangement member 400 is long in a direction parallel to the central axis AX.

以下の説明においては、配設部材４００が配管であることとし、配設部材４００を適宜、配管４００、と称する。配管４００は、例えば鉄のような金属製である。   In the following description, the arrangement member 400 is a pipe, and the arrangement member 400 is appropriately referred to as a pipe 400. The pipe 400 is made of metal such as iron.

また、以下の説明においては、配管（配設部材）４００の中心軸ＡＸと平行な方向を適宜、軸方向、と称し、配管（配設部材）４００の中心軸ＡＸと直交する方向を適宜、軸直方向、と称する。軸直方向は、中心軸ＡＸに対する放射方向を含む。   In the following description, a direction parallel to the central axis AX of the pipe (arrangement member) 400 is appropriately referred to as an axial direction, and a direction orthogonal to the central axis AX of the pipe (arrangement member) 400 is appropriately determined. This is referred to as the axial direction. The axial direction includes a radial direction with respect to the central axis AX.

壁部２００は、例えばコンクリートを含み、所定の水圧に耐えられる厚さを有する。本実施形態においては、コンクリートの壁部２００に形成された貫通孔に、スリーブ５００が配置される。スリーブ５００は、例えば鉄のような金属製の円筒部材である。本実施形態において、貫通孔３００の内面３０１は、スリーブ５００の内面を含む。シール構造１００は、金属製の配管４００の外面４０１と、金属製のスリーブ５００の内面３０１との間に配置される。   The wall portion 200 includes, for example, concrete and has a thickness that can withstand a predetermined water pressure. In the present embodiment, the sleeve 500 is disposed in a through hole formed in the concrete wall portion 200. The sleeve 500 is a cylindrical member made of metal such as iron. In the present embodiment, the inner surface 301 of the through hole 300 includes the inner surface of the sleeve 500. The seal structure 100 is disposed between the outer surface 401 of the metal pipe 400 and the inner surface 301 of the metal sleeve 500.

中心軸ＡＸと直交する貫通孔３００の断面は、円形である。中心軸ＡＸと直交する配管４００の断面は、円形である。配管４００は、貫通孔３００の中心と配管４００の中心（中心軸ＡＸ）とが一致するように、貫通孔３００の内側に配置される。なお、貫通孔３００の中心と配管４００の中心とは一致しなくてもよい。なお、貫通孔３００の断面は、矩形のような多角形でもよい。配管４００（又はダクト）の断面は、矩形のような多角形でもよい。   The cross section of the through hole 300 orthogonal to the central axis AX is circular. The cross section of the pipe 400 orthogonal to the central axis AX is circular. The pipe 400 is disposed inside the through hole 300 so that the center of the through hole 300 and the center of the pipe 400 (center axis AX) coincide. Note that the center of the through hole 300 and the center of the pipe 400 do not have to coincide with each other. The cross-section of the through hole 300 may be a polygon such as a rectangle. The cross section of the pipe 400 (or duct) may be a polygon such as a rectangle.

図１に示すように、シール構造１００は、第１シール材１０と、第１シール材１０よりも第２空間ＳＰ２側に配置される第２シール材２０と、第１シール材１０よりも第１空間ＳＰ１側に配置される伸縮性部材３０と、を備えている。   As shown in FIG. 1, the seal structure 100 includes a first seal material 10, a second seal material 20 disposed closer to the second space SP2 than the first seal material 10, and a first seal material 10 than the first seal material 10. And a stretchable member 30 disposed on the one space SP1 side.

第１シール材１０は、環状の部材である。第２シール材２０は、環状の部材である。伸縮性部材３０は、環状の部材である。第１シール材１０、第２シール材２０、及び伸縮性部材３０はそれぞれ、配管４００の周囲に配置される。   The first sealing material 10 is an annular member. The second sealing material 20 is an annular member. The elastic member 30 is an annular member. The first sealing material 10, the second sealing material 20, and the stretchable member 30 are each disposed around the pipe 400.

第１シール材１０は、弾性部材である。第２シール材２０は、弾性部材である。伸縮性部材３０は、弾性部材である。第１シール材１０、第２シール材２０、及び伸縮性部材３０はそれぞれ、可撓性を有する。   The first sealing material 10 is an elastic member. The second sealing material 20 is an elastic member. The elastic member 30 is an elastic member. Each of the first sealing material 10, the second sealing material 20, and the stretchable member 30 has flexibility.

第１シール材１０は、貫通孔３００の内面３０１と配管４００の外面４０１との間に充填されたゴム製の部材である。第２シール材２０は、貫通孔３００の内面３０１と配管４００の外面４０１との間に充填されたゴム製の部材である。第２シール材２０は、第１シール材１０よりも第２空間ＳＰ２側において、貫通孔３００の内面３０１と配管４００の外面４０１との間に充填される。   The first sealing material 10 is a rubber member filled between the inner surface 301 of the through hole 300 and the outer surface 401 of the pipe 400. The second sealing material 20 is a rubber member filled between the inner surface 301 of the through hole 300 and the outer surface 401 of the pipe 400. The second sealing material 20 is filled between the inner surface 301 of the through hole 300 and the outer surface 401 of the pipe 400 on the second space SP2 side than the first sealing material 10.

第１シール材１０及び第２シール材２０は、配管４００を流れる流体の温度及び建屋の内部空間ＳＰ２の温度に対して耐熱性を有する弾性発泡材でもよい。例えば、第１シール材１０及び第２シール材２０は、ウレタンのような弾性発泡材でもよい。これにより、第１シール材１０及び第２シール材２０は、液密性（水密性）を得られる。   The first sealing material 10 and the second sealing material 20 may be an elastic foam material having heat resistance against the temperature of the fluid flowing through the pipe 400 and the temperature of the internal space SP2 of the building. For example, the first sealing material 10 and the second sealing material 20 may be elastic foam materials such as urethane. Thereby, the 1st sealing material 10 and the 2nd sealing material 20 acquire liquid-tightness (watertightness).

なお、第１シール材１０の材料と、第２シール材２０の材料とは、同じ種類の材料でもよいし、異なる種類の材料でもよい。   The material of the first sealing material 10 and the material of the second sealing material 20 may be the same type of material or different types of materials.

伸縮性部材３０は、第１シール材１０及び第２シール材２０よりも伸縮性を有する。伸縮性部材３０は、第１シール材１０及び第２シール材２０よりも軟らかい。第１シール材１０及び第２シール材２０は、伸縮性部材３０よりも剛性（強度）が高い。   The elastic member 30 is more elastic than the first sealing material 10 and the second sealing material 20. The elastic member 30 is softer than the first sealing material 10 and the second sealing material 20. The first sealing material 10 and the second sealing material 20 have higher rigidity (strength) than the stretchable member 30.

伸縮性部材３０は、高い伸縮性（弾性）を有するシーリング材である。本実施形態において、伸縮性部材３０は、シリコンシーラントを含む。伸縮性部材３０は、壁部２００（スリーブ５００）に対して配管４００が移動しても、配管４００に追従することができる。   The elastic member 30 is a sealing material having high elasticity (elasticity). In the present embodiment, the elastic member 30 includes a silicon sealant. The elastic member 30 can follow the pipe 400 even if the pipe 400 moves relative to the wall portion 200 (sleeve 500).

第１シール材１０は、第１空間ＳＰ１側を向く第１前面１１と、第２空間ＳＰ２側を向く第１後面１２と、貫通孔３００の内面３０１に固定される第１外面１３と、配管４００の外面４０１に相対移動可能に接続される第１内面１４と、を有する。   The first sealing material 10 includes a first front surface 11 facing the first space SP1 side, a first rear surface 12 facing the second space SP2 side, a first outer surface 13 fixed to the inner surface 301 of the through hole 300, and piping. And a first inner surface 14 connected to the outer surface 401 of 400 so as to be relatively movable.

第２シール材２０は、第１後面１２に相対移動可能に接続される第２前面２１と、第２空間ＳＰ２側を向く第２後面２２と、貫通孔３００の内面３０１に相対移動可能に接続される第２外面２３と、配管４００の外面４０１に固定される第２内面２４と、を有する。   The second sealing material 20 is connected to the first rear surface 12 so as to be relatively movable, the second rear surface 22 facing the second space SP2 side, and the inner surface 301 of the through hole 300 so as to be relatively movable. And a second inner surface 24 fixed to the outer surface 401 of the pipe 400.

伸縮性部材３０は、第１空間ＳＰ１側を向く第３前面３１と、第１前面１１に相対移動可能に接続される第３後面３２と、貫通孔３００の内面３０１に固定される第３外面３３と、配管４００の外面４０１に固定される第３内面３４と、を有する。   The elastic member 30 includes a third front surface 31 facing the first space SP1 side, a third rear surface 32 connected to the first front surface 11 so as to be relatively movable, and a third outer surface fixed to the inner surface 301 of the through hole 300. 33 and a third inner surface 34 fixed to the outer surface 401 of the pipe 400.

伸縮性部材３０は、シート状の部材である。配管４００の軸方向に関して、伸縮性部材３０の寸法は、第１シール材１０の寸法及び第２シール材２０の寸法よりも小さい。   The elastic member 30 is a sheet-like member. With respect to the axial direction of the pipe 400, the size of the stretchable member 30 is smaller than the size of the first sealing material 10 and the size of the second sealing material 20.

第３前面３１は、第１空間ＳＰ１に面する。第３後面３２は、第３前面３１の反対方向を向く。第３前面３１と第３後面３２とは平行である。第３前面３１は、貫通孔３００の内面３０１と配管４００の外面４０１とを結ぶように配置される。第３後面３２は、貫通孔３００の内面３０１と配管４００の外面４０１とを結ぶように配置される。   The third front surface 31 faces the first space SP1. The third rear surface 32 faces in the direction opposite to the third front surface 31. The third front surface 31 and the third rear surface 32 are parallel. The third front surface 31 is disposed so as to connect the inner surface 301 of the through hole 300 and the outer surface 401 of the pipe 400. The third rear surface 32 is disposed so as to connect the inner surface 301 of the through hole 300 and the outer surface 401 of the pipe 400.

第１前面１１は、貫通孔３００の内面３０１と配管４００の外面４０１とを結ぶように配置される。第１前面１１は、第３前面３１及び第３後面３２と平行である。第１前面１１と第３後面３２とは相対移動可能である。第１前面１１と第３後面３２とは剥離可能である。   The first front surface 11 is disposed so as to connect the inner surface 301 of the through hole 300 and the outer surface 401 of the pipe 400. The first front surface 11 is parallel to the third front surface 31 and the third rear surface 32. The first front surface 11 and the third rear surface 32 are relatively movable. The first front surface 11 and the third rear surface 32 are peelable.

第３外面３３は、貫通孔３００の内面３０１に接着される。第３内面３４は、配管４００の外面４０１に接着される。本実施形態において、伸縮性部材３０の第３外面３３は、プライマー層４０を介して、貫通孔３００の内面３０１と接続される。伸縮性部材３０の第３内面３４は、プライマー層４０を介して、配管４００の外面４０１と接続される。プライマー層４０は、伸縮性部材３０と貫通孔３００との接着性、及び伸縮性部材３０と配管４００との接着性を向上させるために設けられる。プライマー層４０は、伸縮性部材３０が接着される対象部材に基づいて選択される。本実施形態において、伸縮性部材３０が接着される貫通孔３００（スリーブ５００）の内面３０１及び配管４００の外面４０１は、金属の表面を含む。伸縮性部材３０と金属との接着性を向上させるためのプライマー層４０として、例えば、シラン系の樹脂をアセトン、ＩＰＡ、及びトルエンからなる溶剤で溶解させた材料（例えば、モメンティブ社、トスプライムＤ（登録商標））が選択されてもよい。貫通孔３００の内面３０１がコンクリートの表面を含む場合、プライマー層４０として、シリコーン変性ウレタン系の樹脂を酢酸ブチルの溶剤で溶解させた材料（例えば、モメンティブ社、トスプライムＣ（登録商標））が選択されてもよい。   The third outer surface 33 is bonded to the inner surface 301 of the through hole 300. The third inner surface 34 is bonded to the outer surface 401 of the pipe 400. In the present embodiment, the third outer surface 33 of the elastic member 30 is connected to the inner surface 301 of the through hole 300 through the primer layer 40. The third inner surface 34 of the elastic member 30 is connected to the outer surface 401 of the pipe 400 through the primer layer 40. The primer layer 40 is provided to improve the adhesiveness between the elastic member 30 and the through hole 300 and the adhesiveness between the elastic member 30 and the pipe 400. The primer layer 40 is selected based on the target member to which the stretchable member 30 is bonded. In the present embodiment, the inner surface 301 of the through hole 300 (sleeve 500) to which the stretchable member 30 is bonded and the outer surface 401 of the pipe 400 include a metal surface. As the primer layer 40 for improving the adhesion between the elastic member 30 and the metal, for example, a material in which a silane-based resin is dissolved in a solvent composed of acetone, IPA, and toluene (for example, Momentive, Tosprime D (Registered trademark)) may be selected. When the inner surface 301 of the through-hole 300 includes a concrete surface, a material (for example, Momentive Co., Tosprime C (registered trademark)) obtained by dissolving a silicone-modified urethane resin with a butyl acetate solvent is used as the primer layer 40. It may be selected.

プライマー層４０が設けられることにより、伸縮性部材３０の第３外面３３は、貫通孔３００の内面３０１と強固に固定される。プライマー層４０が設けられることにより、伸縮性部材３０の第３内面３４は、配管４００の外面４０１と強固に固定される。   By providing the primer layer 40, the third outer surface 33 of the elastic member 30 is firmly fixed to the inner surface 301 of the through hole 300. By providing the primer layer 40, the third inner surface 34 of the stretchable member 30 is firmly fixed to the outer surface 401 of the pipe 400.

なお、伸縮性部材３０と貫通孔３００の内面３０１との接着性及び伸縮性部材３０と配管４００の外面４０１との接着性が十分であれば、プライマー層４０は省略されてもよい。   The primer layer 40 may be omitted if the adhesiveness between the elastic member 30 and the inner surface 301 of the through hole 300 and the adhesiveness between the elastic member 30 and the outer surface 401 of the pipe 400 are sufficient.

第１内面１４と配管４００の外面４０１とは相対移動可能である。第１内面１４と配管４００の外面４０１とは剥離可能である。第１外面１３は、貫通孔３００の内面３０１に接着される。第１後面１２と第２前面２１とは相対移動可能である。第１後面１２と第２前面２１とは剥離可能である。   The first inner surface 14 and the outer surface 401 of the pipe 400 are relatively movable. The first inner surface 14 and the outer surface 401 of the pipe 400 can be peeled off. The first outer surface 13 is bonded to the inner surface 301 of the through hole 300. The first rear surface 12 and the second front surface 21 are relatively movable. The first rear surface 12 and the second front surface 21 can be peeled off.

配管４００の軸方向に関して、第１外面１３の寸法は、第１内面１４の寸法よりも大きい。第１後面１２は、第１前面１１に対して傾斜する。第１後面１２は、貫通孔３００の内面３０１と配管４００の外面４０１とを結ぶように配置される。第１後面１２は、貫通孔３００の内面３０１から配管４００の外面４０１に向かって第１空間ＳＰ１側に傾斜する。   With respect to the axial direction of the pipe 400, the dimension of the first outer surface 13 is larger than the dimension of the first inner surface 14. The first rear surface 12 is inclined with respect to the first front surface 11. The first rear surface 12 is disposed so as to connect the inner surface 301 of the through hole 300 and the outer surface 401 of the pipe 400. The first rear surface 12 is inclined from the inner surface 301 of the through hole 300 toward the outer surface 401 of the pipe 400 toward the first space SP1.

第２外面２３と貫通孔３００の内面３０１とは相対移動可能である。第２外面２３と貫通孔３００の内面３０１とは剥離可能である。第２内面２４は、配管４００の外面４０１に接着される。第２後面２２は、第２空間ＳＰ２に面する。   The second outer surface 23 and the inner surface 301 of the through hole 300 are relatively movable. The second outer surface 23 and the inner surface 301 of the through hole 300 can be peeled off. The second inner surface 24 is bonded to the outer surface 401 of the pipe 400. The second rear surface 22 faces the second space SP2.

配管４００の軸方向に関して、第２内面２４の寸法は、第２外面２３の寸法よりも大きい。第２前面２１は、第２後面２２に対して傾斜する。第２前面２１は、貫通孔３００の内面３０１と配管４００の外面４０１とを結ぶように配置される。第２後面２２は、貫通孔３００の内面３０１と配管４００の外面４０１とを結ぶように配置される。第２前面２１は、貫通孔３００の内面３０１から配管４００の外面４０１に向かって第２空間ＳＰ２側に傾斜する。   With respect to the axial direction of the pipe 400, the dimension of the second inner surface 24 is larger than the dimension of the second outer surface 23. The second front surface 21 is inclined with respect to the second rear surface 22. The second front surface 21 is disposed so as to connect the inner surface 301 of the through hole 300 and the outer surface 401 of the pipe 400. The second rear surface 22 is disposed so as to connect the inner surface 301 of the through hole 300 and the outer surface 401 of the pipe 400. The second front surface 21 is inclined toward the second space SP <b> 2 side from the inner surface 301 of the through hole 300 toward the outer surface 401 of the pipe 400.

本実施形態において、シール構造１００は、配管４００の外面４０１と第１内面１４との間、第１後面１２と第２前面２１との間、貫通孔３００の内面３０１と第２外面２３との間、及び第１前面１１と第３後面３２との間のそれぞれに配置されるブレーカ材５０を備える。ブレーカ材５０は、シート状部材である。ブレーカ材５０は、例えば、発泡ポリエチレンのシート状部材を含む。   In the present embodiment, the seal structure 100 is formed between the outer surface 401 and the first inner surface 14 of the pipe 400, between the first rear surface 12 and the second front surface 21, and between the inner surface 301 and the second outer surface 23 of the through hole 300. And a breaker material 50 disposed between the first front surface 11 and the third rear surface 32. The breaker material 50 is a sheet-like member. The breaker material 50 includes, for example, a foamed polyethylene sheet-like member.

配管４００の外面４０１と第１内面１４との間に配置されたブレーカ材５０は、配管４００の外面４０１と第１内面１４との相対移動を許容する。第１後面１２と第２前面２１との間に配置されたブレーカ材５０は、第１後面１２と第２前面２１との相対移動を許容する。貫通孔３００の内面３０１と第２外面２３との間に配置されたブレーカ材５０は、貫通孔３００の内面３０１と第２外面２３との相対移動を許容する。第１前面１１と第３後面３２との間に配置されたブレーカ材５０は、第１前面１１と第３後面３２との相対移動を許容する。   The breaker material 50 disposed between the outer surface 401 of the pipe 400 and the first inner surface 14 allows relative movement between the outer surface 401 of the pipe 400 and the first inner surface 14. The breaker material 50 disposed between the first rear surface 12 and the second front surface 21 allows relative movement between the first rear surface 12 and the second front surface 21. The breaker material 50 disposed between the inner surface 301 of the through hole 300 and the second outer surface 23 allows relative movement between the inner surface 301 of the through hole 300 and the second outer surface 23. The breaker material 50 disposed between the first front surface 11 and the third rear surface 32 allows relative movement between the first front surface 11 and the third rear surface 32.

本実施形態において、配管４００の外面４０１と第１内面１４との間に配置されるブレーカ材５０と、第１後面１２と第２前面２１との間に配置されるブレーカ材５０と、貫通孔３００の内面３０１と第２外面２３との間に配置されるブレーカ材５０と、第１前面１１と第３後面３２との間に配置されるブレーカ材５０とは、単一部材である。なお、配管４００の外面４０１と第１内面１４との間に配置されるブレーカ材５０と、第１後面１２と第２前面２１との間に配置されるブレーカ材５０と、貫通孔３００の内面３０１と第２外面２３との間に配置されるブレーカ材５０と、第１前面１１と第３後面３２との間に配置されるブレーカ材５０とが、別々の部材でもよい。   In the present embodiment, the breaker material 50 disposed between the outer surface 401 and the first inner surface 14 of the pipe 400, the breaker material 50 disposed between the first rear surface 12 and the second front surface 21, and the through hole The breaker material 50 disposed between the inner surface 301 and the second outer surface 23 of the 300 and the breaker material 50 disposed between the first front surface 11 and the third rear surface 32 are a single member. The breaker material 50 disposed between the outer surface 401 and the first inner surface 14 of the pipe 400, the breaker material 50 disposed between the first rear surface 12 and the second front surface 21, and the inner surface of the through hole 300. The breaker material 50 disposed between 301 and the second outer surface 23 and the breaker material 50 disposed between the first front surface 11 and the third rear surface 32 may be separate members.

第１前面１１は、ブレーカ材５０を介して、第３後面３２と接続される。第１内面１４は、ブレーカ材５０を介して、配管４００の外面４０１と接続される。第２前面２１は、ブレーカ材５０を介して、第１後面１２と接続される。第２外面２３は、ブレーカ材５０を介して、貫通孔３００の内面３０１と接続される。   The first front surface 11 is connected to the third rear surface 32 via the breaker material 50. The first inner surface 14 is connected to the outer surface 401 of the pipe 400 through the breaker material 50. The second front surface 21 is connected to the first rear surface 12 via the breaker material 50. The second outer surface 23 is connected to the inner surface 301 of the through hole 300 through the breaker material 50.

次に、本実施形態に係るシール構造の製造方法の一例について、図２及び図３を参照して説明する。図２及び図３は、本実施形態に係るシール構造１００の製造方法の一例を模式的に示す断面図である。   Next, an example of the manufacturing method of the seal structure according to the present embodiment will be described with reference to FIGS. FIG.2 and FIG.3 is sectional drawing which shows typically an example of the manufacturing method of the seal structure 100 which concerns on this embodiment.

図２に示すように、貫通孔３００の内面３０１と配管４００の外面４０１との間にブレーカ材５０が配置される。また、第２シール材２０を形成するための型６１及び型６２が配置される。型６１及び型６２は、貫通孔３００の内面３０１と配管４００の外面４０１との間に配置される。ブレーカ材５０の少なくとも一部は、型６１及び型６２に支持される。   As shown in FIG. 2, the breaker material 50 is disposed between the inner surface 301 of the through hole 300 and the outer surface 401 of the pipe 400. In addition, a mold 61 and a mold 62 for forming the second sealing material 20 are disposed. The mold 61 and the mold 62 are disposed between the inner surface 301 of the through hole 300 and the outer surface 401 of the pipe 400. At least a part of the breaker material 50 is supported by the mold 61 and the mold 62.

貫通孔３００の内面３０１と配管４００の外面４０１との間に、ブレーカ材５０、型６１、及び型６２が配置された状態で、第２シール材２０を製造するための液体状の材料が充填される。その充填された液体状の材料が硬化されることによって、貫通孔３００の内面３０１と配管４００の外面４０１との間に第２シール材２０が設けられる。   Filled with a liquid material for manufacturing the second sealing material 20 with the breaker material 50, the mold 61, and the mold 62 disposed between the inner surface 301 of the through hole 300 and the outer surface 401 of the pipe 400. Is done. By curing the filled liquid material, the second sealing material 20 is provided between the inner surface 301 of the through hole 300 and the outer surface 401 of the pipe 400.

同様に、貫通孔３００の内面３０１と配管４００の外面４０１との間に、ブレーカ材５０、及び型が配置された状態で、第１シール材１０を製造するための液体状の材料が充填される。その充填された液体状の材料が硬化されることによって、貫通孔３００の内面３０１と配管４００の外面４０１との間に第１シール材１０が設けられる。   Similarly, a liquid material for manufacturing the first sealing material 10 is filled in a state where the breaker material 50 and the mold are arranged between the inner surface 301 of the through hole 300 and the outer surface 401 of the pipe 400. The By curing the filled liquid material, the first sealing material 10 is provided between the inner surface 301 of the through hole 300 and the outer surface 401 of the pipe 400.

第１シール材１０及び第２シール材２０が設けられた後、図３に示すように、貫通孔３００の内面３０１及び配管４００の外面４０１にプライマー層４０が設けられる。プライマー層４０が設けられた後、貫通孔３００の内面３０１と配管４００の外面４０１との間に、伸縮性部材３０を製造するための液体状の材料が充填される。その充填された液体状の材料が硬化されることによって、貫通孔３００の内面３０１と配管４００の外面４０１との間に伸縮性部材３０が設けられる。以上により、シール構造１００が製造される。   After the first sealing material 10 and the second sealing material 20 are provided, the primer layer 40 is provided on the inner surface 301 of the through hole 300 and the outer surface 401 of the pipe 400 as shown in FIG. After the primer layer 40 is provided, a liquid material for manufacturing the elastic member 30 is filled between the inner surface 301 of the through hole 300 and the outer surface 401 of the pipe 400. The stretchable member 30 is provided between the inner surface 301 of the through hole 300 and the outer surface 401 of the pipe 400 by curing the filled liquid material. As described above, the seal structure 100 is manufactured.

次に、本実施形態に係るシール構造１００の動作の一例について、図４、図５、及び図６を参照して説明する。図４、図５、及び図６は、本実施形態に係るシール構造１００の動作の一例を模式的に示す断面図である。   Next, an example of operation | movement of the seal structure 100 which concerns on this embodiment is demonstrated with reference to FIG.4, FIG.5 and FIG.6. 4, 5 and 6 are cross-sectional views schematically showing an example of the operation of the seal structure 100 according to the present embodiment.

例えば、地震の発生により、壁部２００（スリーブ５００）と配管４００との相対位置が変動する可能性がある。図４は、壁部２００と配管４００とが配管４００の軸方向に相対移動して、壁部２００と配管４００との相対位置が変動した例を示す。図４に示す例は、配管４００が壁部２００に対して第１空間ＳＰ１側に移動するように、壁部２００と配管４００とが軸方向に相対移動した例を示す。   For example, the relative position between the wall 200 (sleeve 500) and the pipe 400 may vary due to the occurrence of an earthquake. FIG. 4 shows an example in which the wall portion 200 and the pipe 400 are relatively moved in the axial direction of the pipe 400 and the relative position between the wall portion 200 and the pipe 400 is changed. The example illustrated in FIG. 4 illustrates an example in which the wall portion 200 and the pipe 400 are relatively moved in the axial direction so that the pipe 400 moves toward the first space SP1 with respect to the wall portion 200.

本実施形態において、配管４００の外面４０１と第１内面１４とは相対移動可能である。第１後面１２と第２前面２１とは相対移動可能である。貫通孔３００の内面３０１と第２外面２３とは相対移動可能である。また、第１外面１３と貫通孔３００の内面３０１とは固定されている。第２内面２４と配管４００の外面４０１とは固定されている。   In the present embodiment, the outer surface 401 of the pipe 400 and the first inner surface 14 are relatively movable. The first rear surface 12 and the second front surface 21 are relatively movable. The inner surface 301 and the second outer surface 23 of the through hole 300 are relatively movable. Further, the first outer surface 13 and the inner surface 301 of the through hole 300 are fixed. The second inner surface 24 and the outer surface 401 of the pipe 400 are fixed.

そのため、配管４００が第１空間ＳＰ１側に移動するように壁部２００と配管４００とが軸方向に相対移動すると、図４に示すように、第１内面１４を含む第１シール材１０の内側部分１０Ｒは、第２シール材２０に押されて第１空間ＳＰ１側に移動する。これにより、第１シール材１０の第１前面１１と伸縮性部材３０の第３後面３２とは、ブレーカ材５０を介して密着し続けることができる。すなわち、配管４００と壁部２００とが軸方向に相対移動しても、第１シール材１０と伸縮性部材３０との間には隙間が形成されない。   Therefore, when the wall portion 200 and the pipe 400 move relative to each other in the axial direction so that the pipe 400 moves to the first space SP1 side, as shown in FIG. 4, the inside of the first sealing material 10 including the first inner surface 14. The portion 10R is pushed by the second sealing material 20 and moves to the first space SP1 side. Accordingly, the first front surface 11 of the first sealing material 10 and the third rear surface 32 of the elastic member 30 can be kept in close contact with each other via the breaker material 50. That is, no gap is formed between the first sealing material 10 and the stretchable member 30 even if the pipe 400 and the wall portion 200 are relatively moved in the axial direction.

また、配管４００と壁部２００とが軸方向に相対移動しても、伸縮性部材３０は第１シール材１０に支持され続けるので、例えば津波又は河川の氾濫により伸縮性部材３０に水圧（外力）が作用しても、伸縮性部材３０の破断は抑制される。   Further, even if the pipe 400 and the wall portion 200 move relative to each other in the axial direction, the elastic member 30 continues to be supported by the first sealing material 10, so that the elastic member 30 is subjected to water pressure (external force, for example, due to tsunami or river flooding). ), The breakage of the elastic member 30 is suppressed.

このように、本実施形態においては、配管４００と壁部２００とが軸方向に相対移動しても、伸縮性部材３０と第１シール材１０との間に隙間が形成されたり、伸縮性部材３０が破断したりすることが抑制される。したがって、シール構造１００のシール性能の低下が抑制される。   Thus, in this embodiment, even if the piping 400 and the wall part 200 move relative to each other in the axial direction, a gap is formed between the elastic member 30 and the first sealing material 10 or the elastic member. It is suppressed that 30 breaks. Therefore, a decrease in the sealing performance of the seal structure 100 is suppressed.

また、伸縮性部材３０は、第１シール材１０及び第２シール材２０よりも伸縮性を有する。また、伸縮性部材３０の第３外面３３は、貫通孔３００の内面３０１に固定され、伸縮性部材３０の第３内面３４は、配管４００の外面４０１に固定される。したがって、配管４００と壁部２００とが軸方向に相対移動しても、第３外面３３が貫通孔３００の内面３０１に固定され、第３内面３４が配管４００の外面４０１に固定された状態で、伸縮性部材３０は伸びることができる。これにより、伸縮性部材３０のシール性能（液密性、水密性）は維持され、第１空間ＳＰ１から第２空間ＳＰ２に液体が浸入することが抑制される。   The stretchable member 30 is more stretchable than the first sealing material 10 and the second sealing material 20. Further, the third outer surface 33 of the elastic member 30 is fixed to the inner surface 301 of the through hole 300, and the third inner surface 34 of the elastic member 30 is fixed to the outer surface 401 of the pipe 400. Therefore, even when the pipe 400 and the wall 200 are relatively moved in the axial direction, the third outer surface 33 is fixed to the inner surface 301 of the through hole 300 and the third inner surface 34 is fixed to the outer surface 401 of the pipe 400. The elastic member 30 can be extended. Thereby, the sealing performance (liquid tightness, water tightness) of the stretchable member 30 is maintained, and the infiltration of the liquid from the first space SP1 to the second space SP2 is suppressed.

また、本実施形態においては、第１シール材１０の第１前面１１と伸縮性部材３０の第３後面３２とは相対移動可能である。そのため、配管４００と壁部２００とが相対移動しても、伸縮性部材３０は伸縮性を阻害されずに円滑に伸縮することができる。   In the present embodiment, the first front surface 11 of the first sealing material 10 and the third rear surface 32 of the stretchable member 30 are relatively movable. Therefore, even if the piping 400 and the wall part 200 move relatively, the elastic member 30 can expand and contract smoothly without hindering the elasticity.

図５は、壁部２００と配管４００とが配管４００の軸方向に相対移動して、壁部２００と配管４００との相対位置が変動した例を示す。図５に示す例は、配管４００が壁部２００に対して第２空間ＳＰ２側に移動するように、壁部２００と配管４００とが軸方向に相対移動した例を示す。   FIG. 5 shows an example in which the wall portion 200 and the pipe 400 are relatively moved in the axial direction of the pipe 400 and the relative position between the wall portion 200 and the pipe 400 is changed. The example illustrated in FIG. 5 illustrates an example in which the wall portion 200 and the pipe 400 are relatively moved in the axial direction so that the pipe 400 moves toward the second space SP2 with respect to the wall portion 200.

配管４００が壁部２００に対して第２空間ＳＰ２側に移動するように壁部２００と配管４００とが軸方向に相対移動すると、図５に示すように、第１シール材１０の内側部分１０Ｒは、伸縮性部材３０と一緒に、第２空間ＳＰ２側に移動する。これにより、第１シール材１０の第１前面１１と伸縮性部材３０の第３後面３２とは、ブレーカ材５０を介して密着し続けることができる。すなわち、配管４００と壁部２００とが軸方向に相対移動しても、第１シール材１０と伸縮性部材３０との間には隙間が形成されない。   When the wall part 200 and the pipe 400 move relative to each other in the axial direction so that the pipe 400 moves toward the second space SP2 with respect to the wall part 200, as shown in FIG. Moves together with the elastic member 30 to the second space SP2 side. Accordingly, the first front surface 11 of the first sealing material 10 and the third rear surface 32 of the elastic member 30 can be kept in close contact with each other via the breaker material 50. That is, no gap is formed between the first sealing material 10 and the stretchable member 30 even if the pipe 400 and the wall portion 200 are relatively moved in the axial direction.

また、配管４００が第２空間ＳＰ２側に移動する場合においても、伸縮性部材３０は、第１シール材１０に支持され続けるので、伸縮性部材３０に水圧（外力）が作用しても、伸縮性部材３０の破断は抑制される。   Even when the pipe 400 moves to the second space SP2 side, the stretchable member 30 continues to be supported by the first seal material 10, so that even if water pressure (external force) acts on the stretchable member 30, the stretchable member 30 is stretched. The breakage of the sex member 30 is suppressed.

このように、本実施形態においては、配管４００と壁部２００とが軸方向に相対移動しても、伸縮性部材３０と第１シール材１０との間に隙間が形成されたり、伸縮性部材３０が破断したりすることが抑制される。したがって、シール構造１００のシール性能の低下が抑制される。   Thus, in this embodiment, even if the piping 400 and the wall part 200 move relative to each other in the axial direction, a gap is formed between the elastic member 30 and the first sealing material 10 or the elastic member. It is suppressed that 30 breaks. Therefore, a decrease in the sealing performance of the seal structure 100 is suppressed.

図６は、壁部２００と配管４００とが配管４００の軸方向に相対移動するとともに、配管４００の軸直方向に相対移動して、壁部２００と配管４００との相対位置が変動した例を示す。   FIG. 6 shows an example in which the wall portion 200 and the pipe 400 are relatively moved in the axial direction of the pipe 400 and the relative position between the wall portion 200 and the pipe 400 is changed relative to the axial direction of the pipe 400. Show.

本実施形態においては、第１シール材１０の第１前面１１と伸縮性部材３０の第３後面３２とは相対移動可能である。そのため、壁部２００と配管４００とが配管４００の軸直方向に相対移動しても、伸縮性部材３０は、伸縮性を阻害されずに、軸方向のみならず、軸直方向にも円滑に伸縮することができる。また、伸縮性部材３０は、第１シール材１０に支持され続ける。そのため、壁部２００と配管４００とが軸直方向に相対移動しても、伸縮性部材３０の破断が抑制される。したがって、伸縮性部材３０のシール性能（液密性、水密性）は維持され、シール構造１００のシール性能の低下が抑制される。   In the present embodiment, the first front surface 11 of the first sealing material 10 and the third rear surface 32 of the stretchable member 30 are relatively movable. Therefore, even if the wall part 200 and the pipe 400 move relative to each other in the axial direction of the pipe 400, the stretchable member 30 can be smoothly moved not only in the axial direction but also in the axial direction without hindering the stretchability. Can expand and contract. Further, the stretchable member 30 is continuously supported by the first sealing material 10. Therefore, even if the wall part 200 and the piping 400 move relatively in the axial direction, the breakage of the elastic member 30 is suppressed. Therefore, the sealing performance (liquid tightness, water tightness) of the stretchable member 30 is maintained, and the deterioration of the sealing performance of the seal structure 100 is suppressed.

図７及び図８は、比較例に係るシール構造１００Ｊの動作の一例を示す図である。図７及び図８に示すように、シール構造１００Ｊは、貫通孔３００の内面３０１及び配管４００の外面４０１に固定される伸縮性部材３０Ｊと、貫通孔３００の内面３０１に固定され、配管４００の外面４０１に対して剥離可能なシール材１０Ｊと、伸縮性部材３０Ｊとシール材１０Ｊとの間に配置され、伸縮性部材３０Ｊとシール材１０Ｊとの相対移動を許容するブレーカ材５０Ｊと、を備えている。   7 and 8 are diagrams illustrating an example of the operation of the seal structure 100J according to the comparative example. As shown in FIGS. 7 and 8, the seal structure 100 </ b> J includes the elastic member 30 </ b> J fixed to the inner surface 301 of the through hole 300 and the outer surface 401 of the pipe 400, and the inner surface 301 of the through hole 300. A sealing material 10J that can be peeled off from the outer surface 401, and a breaker material 50J that is disposed between the elastic member 30J and the sealing material 10J and allows relative movement between the elastic member 30J and the sealing material 10J. ing.

図７は、壁部２００と配管４００とが軸直方向に相対移動した例を示す。図７に示すように、壁部２００と配管４００とが軸直方向に相対移動した場合、伸縮性部材３０Ｊとシール材１０Ｊとはブレーカ材５０Ｊにより相対移動可能なので、伸縮性部材３０Ｊは、伸縮性を阻害されずに、円滑に伸縮することができる。したがって、伸縮性部材３０Ｊの破断が抑制される。   FIG. 7 shows an example in which the wall 200 and the pipe 400 are relatively moved in the axial direction. As shown in FIG. 7, when the wall portion 200 and the pipe 400 are relatively moved in the axial direction, the elastic member 30J and the sealing material 10J can be relatively moved by the breaker material 50J. It can expand and contract smoothly without impairing the properties. Therefore, the breakage of the elastic member 30J is suppressed.

図８は、壁部２００と配管４００とが軸方向に相対移動した例を示す。図８に示すように、壁部２００と配管４００とが軸直方向に相対移動した場合、伸縮性部材３０Ｊとシール材１０Ｊとが離れ、伸縮性部材３０Ｊとシール材１０Ｊとの間に隙間が形成される可能性がある。すなわち、伸縮性部材３０Ｊがシール材１０Ｊから離れ、シール材１０Ｊに支持されない状態になる可能性がある。   FIG. 8 shows an example in which the wall 200 and the pipe 400 are relatively moved in the axial direction. As shown in FIG. 8, when the wall 200 and the pipe 400 are relatively moved in the axial direction, the elastic member 30J and the sealing material 10J are separated, and a gap is formed between the elastic member 30J and the sealing material 10J. It may be formed. That is, there is a possibility that the elastic member 30J is separated from the sealing material 10J and is not supported by the sealing material 10J.

伸縮性部材３０Ｊがシール材１０Ｊから離れた状態で、津波又は河川の氾濫により伸縮性部材３０Ｊに水圧（外力）が作用すると、伸縮性部材３０Ｊが破断する可能性がある。その結果、シール構造１００Ｊのシール性能が低下する可能性がある。   If water pressure (external force) acts on the elastic member 30J due to a tsunami or flooding of the river in a state where the elastic member 30J is separated from the sealing material 10J, the elastic member 30J may be broken. As a result, the sealing performance of the seal structure 100J may be reduced.

図４から図６を参照して説明したように、本実施形態によれば、壁部２００と配管４００とが相対移動しても、伸縮性部材３０は、第１シール材１０に支持され続ける。そのため、伸縮性部材３０に水圧（外力）が作用しても、伸縮性部材３０の破断が抑制される。   As described with reference to FIGS. 4 to 6, according to the present embodiment, the elastic member 30 continues to be supported by the first sealing material 10 even if the wall portion 200 and the pipe 400 move relative to each other. . Therefore, even if water pressure (external force) acts on the stretchable member 30, breakage of the stretchable member 30 is suppressed.

以上説明したように、本実施形態によれば、第１シール材１０及び第２シール材２０よりも伸縮性が高く液密性（水密性）を有する伸縮性部材３０が第１空間ＳＰ１に面するように配置され、その伸縮性部材３０の第３外面３３が貫通孔３００の内面３０１に固定され、伸縮性部材３０の第３内面３４が配管４００の外面４０１に固定されるので、第１空間ＳＰ１から第２空間ＳＰ２に液体が浸入することが抑制される。   As described above, according to the present embodiment, the stretchable member 30 having higher stretchability and liquid tightness (watertightness) than the first sealant 10 and the second sealant 20 faces the first space SP1. The third outer surface 33 of the stretchable member 30 is fixed to the inner surface 301 of the through hole 300, and the third inner surface 34 of the stretchable member 30 is fixed to the outer surface 401 of the pipe 400. It is possible to prevent the liquid from entering the second space SP2 from the space SP1.

第１前面１１と第３後面３２とは相対移動可能であるため、壁部２００と配管４００とが相対移動しても、伸縮性部材３０は伸縮性を阻害されずに円滑に伸縮することができる。   Since the first front surface 11 and the third rear surface 32 can move relative to each other, even if the wall portion 200 and the pipe 400 move relative to each other, the elastic member 30 can expand and contract smoothly without hindering the elasticity. it can.

また、配管４００の外面４０１と第１内面１４とは相対移動可能であり、第１後面１２と第２前面２１とは相対移動可能であり、貫通孔３００の内面３０１と第２外面２３とは相対移動可能である。そのため、配管４００と壁部２００とが軸方向に相対移動しても、伸縮性部材３０は、伸縮性部材３０よりも剛性（強度）が高い第１シール材１０に支持され続ける。したがって、伸縮性部材３０に水圧（外力）が作用しても、伸縮性部材３０の破断は抑制される。したがって、シール構造１００のシール性能の低下が抑制される。   In addition, the outer surface 401 and the first inner surface 14 of the pipe 400 are relatively movable, the first rear surface 12 and the second front surface 21 are relatively movable, and the inner surface 301 and the second outer surface 23 of the through hole 300 are Relative movement is possible. Therefore, even if the pipe 400 and the wall part 200 move relative to each other in the axial direction, the stretchable member 30 continues to be supported by the first sealing material 10 having higher rigidity (strength) than the stretchable member 30. Therefore, even if a hydraulic pressure (external force) acts on the elastic member 30, the breakage of the elastic member 30 is suppressed. Therefore, a decrease in the sealing performance of the seal structure 100 is suppressed.

また、本実施形態においては、軸方向に関して、第１シール材１０の第１外面１３の寸法は、第１内面１４の寸法よりも大きくてもよい。これにより、第１シール材１０の内側部分１０Ｒは、軸方向に円滑に変形することができる。   In the present embodiment, the dimension of the first outer surface 13 of the first sealing material 10 may be larger than the dimension of the first inner surface 14 in the axial direction. Thereby, the inner portion 10 </ b> R of the first sealing material 10 can be smoothly deformed in the axial direction.

また、本実施形態においては、第３前面３１と第３後面３２と第１前面１１とは平行であり、第１後面１２は、第１前面１１に対して傾斜する。これにより、第１前面１１と第３後面３２とが密着し続けた状態で、第１シール材１０の内側部分１０Ｒは、軸方向に円滑に変形することができる。   In the present embodiment, the third front surface 31, the third rear surface 32, and the first front surface 11 are parallel, and the first rear surface 12 is inclined with respect to the first front surface 11. As a result, the inner portion 10R of the first sealing material 10 can be smoothly deformed in the axial direction while the first front surface 11 and the third rear surface 32 are kept in close contact with each other.

また、本実施形態においては、ブレーカ材５０が設けられる。これにより、配管４００の外面４０１と第１内面１４との相対移動、第１後面１２と第２前面２１との相対移動、貫通孔３００の内面３０１と第２外面２３との相対移動、及び第１前面１１と第３後面３２との相対移動は、円滑に行われる。   In the present embodiment, a breaker material 50 is provided. Thereby, the relative movement between the outer surface 401 and the first inner surface 14 of the pipe 400, the relative movement between the first rear surface 12 and the second front surface 21, the relative movement between the inner surface 301 and the second outer surface 23 of the through hole 300, and the first The relative movement between the first front surface 11 and the third rear surface 32 is performed smoothly.

＜第２実施形態＞
第２実施形態について説明する。以下の説明において、上述の実施形態と同一又は同等の構成部分については同一の符号を付し、その説明を簡略又は省略する。 Second Embodiment
A second embodiment will be described. In the following description, the same or equivalent components as those in the above-described embodiment are denoted by the same reference numerals, and the description thereof is simplified or omitted.

図９は、本実施形態に係るシール構造１００Ｂの一例を模式的に示す断面図である。図９に示すように、本実施形態においては、配管４００の軸方向に関して、伸縮性部材３０Ｂの第３内面３４の寸法は、伸縮性部材３０Ｂの第３外面３３の寸法よりも大きい。すなわち、中心軸ＡＸに近い伸縮性部材３０Ｂの内側部分の厚さ（軸方向に関する寸法）は、中心軸ＡＸから遠い伸縮性部材３０Ｂの外側部分の厚さ、及び内側部分と外側部分との間の伸縮性部材３０Ｂの中間部分の厚さよりも大きい。   FIG. 9 is a cross-sectional view schematically showing an example of the seal structure 100B according to the present embodiment. As shown in FIG. 9, in the present embodiment, the dimension of the third inner surface 34 of the stretchable member 30B is larger than the dimension of the third outer surface 33 of the stretchable member 30B in the axial direction of the pipe 400. That is, the thickness of the inner part of the elastic member 30B close to the central axis AX (the dimension in the axial direction) is the thickness of the outer part of the elastic member 30B far from the central axis AX and between the inner part and the outer part. It is larger than the thickness of the middle part of the elastic member 30B.

本実施形態においては、配管４００の外面４０１と伸縮性部材３０Ｂの第３内面３４との接続面積を大きくすることができる。また、伸縮性部材３０Ｂの強度が向上し、配管４００に対する伸縮性部材３０Ｂの追従性も向上する。したがって、例えば、図１０に示すように、配管４００が壁部２００に対して第２空間ＳＰ２側に移動するように壁部２００と配管４００とが相対移動しても、伸縮性部材３０Ｂの破断が抑制される。   In the present embodiment, the connection area between the outer surface 401 of the pipe 400 and the third inner surface 34 of the elastic member 30B can be increased. Moreover, the strength of the elastic member 30B is improved, and the followability of the elastic member 30B to the pipe 400 is also improved. Therefore, for example, as shown in FIG. 10, even if the wall part 200 and the pipe 400 move relative to each other so that the pipe 400 moves toward the second space SP2 with respect to the wall part 200, the stretchable member 30B breaks. Is suppressed.

なお、本実施形態においては、伸縮性部材３０Ｂの内側部分の厚さが、伸縮性部材３０Ｂの中間部分の厚さ及び伸縮性部材３０Ｂの外側部分の厚さよりも大きいこととした。伸縮性部材３０Ｂの内側部分の厚さ及び伸縮性部材３０Ｂの外側部分の厚さが、伸縮性部材３０Ｂの中間部分の厚さよりも大きくてもよい。伸縮性部材３０Ｂの外側部分の厚さが、伸縮性部材３０Ｂの中間部分の厚さ及び伸縮性部材３０Ｂの内側部分の厚さよりも大きくてもよい。   In the present embodiment, the thickness of the inner part of the elastic member 30B is greater than the thickness of the intermediate part of the elastic member 30B and the thickness of the outer part of the elastic member 30B. The thickness of the inner part of the elastic member 30B and the thickness of the outer part of the elastic member 30B may be larger than the thickness of the intermediate part of the elastic member 30B. The thickness of the outer part of the elastic member 30B may be larger than the thickness of the intermediate part of the elastic member 30B and the thickness of the inner part of the elastic member 30B.

＜第３実施形態＞
第３実施形態について説明する。以下の説明において、上述の実施形態と同一又は同等の構成部分については同一の符号を付し、その説明を簡略又は省略する。 <Third Embodiment>
A third embodiment will be described. In the following description, the same or equivalent components as those in the above-described embodiment are denoted by the same reference numerals, and the description thereof is simplified or omitted.

図１１は、本実施形態に係るシール構造１００Ｃの一例を模式的に示す断面図である。図１１に示すように、配管４００と壁部２００との相対位置が初期状態である場合において、第１シール材１０Ｃの第１前面１１と第１後面１２とが平行であり、第２シール材２０Ｃの第２前面２１と第２後面２２とが平行でもよい。図１１に示す例では、上述の実施形態と同様、第１シール材１０Ｃと第２シール材２０Ｃとの間、及び第１シール材１０Ｃと伸縮性部材３０Ｃとの間にブレーカ材５０Ｃが配置されている。   FIG. 11 is a cross-sectional view schematically showing an example of a seal structure 100C according to the present embodiment. As shown in FIG. 11, when the relative position between the pipe 400 and the wall portion 200 is in the initial state, the first front surface 11 and the first rear surface 12 of the first sealing material 10C are parallel, and the second sealing material. The second front surface 21 and the second rear surface 22 of 20C may be parallel. In the example shown in FIG. 11, the breaker material 50C is disposed between the first sealing material 10C and the second sealing material 20C and between the first sealing material 10C and the elastic member 30C, as in the above-described embodiment. ing.

なお、配管４００と壁部２００との相対位置が初期状態であることは、地震の力のような外力が配管４００及び壁部２００に作用してなく、配管４００と壁部２００とが設計値上の相対位置に配置されている状態を含む。図１に示したシール構造１００及び図９に示したシール構造１００Ｂも、配管４００と壁部２００との相対位置が初期状態である例を示す。   Note that the relative position between the pipe 400 and the wall portion 200 is in the initial state, that an external force such as an earthquake force does not act on the pipe 400 and the wall portion 200, and the pipe 400 and the wall portion 200 are designed values. Including the state of being placed in the upper relative position. The seal structure 100 shown in FIG. 1 and the seal structure 100B shown in FIG. 9 also show examples in which the relative position between the pipe 400 and the wall portion 200 is in the initial state.

なお、上述の各実施形態においては、ブレーカ材５０（５０Ｃ）は、発泡ポリエチレンシートであることとした。ブレーカ材５０（５０Ｃ）は、相対移動を許容するものであれば、発泡ポリエチレンシートに限定されない。例えば、ブレーカ材５０（５０Ｃ）が、ポリテトラフロロエチレンのフィルムでもよいし、シリコーン加工紙の様な剥離紙でもよい。   In each of the above-described embodiments, the breaker material 50 (50C) is a foamed polyethylene sheet. The breaker material 50 (50C) is not limited to the foamed polyethylene sheet as long as it allows relative movement. For example, the breaker material 50 (50C) may be a polytetrafluoroethylene film or a release paper such as a silicone processed paper.

なお、上述の各実施形態においては、シート状のブレーカ材５０（５０Ｃ）を設けることによって、配管４００の外面４０１と第１内面１４との相対移動、第１後面１２と第２前面２１との相対移動、貫通孔３００の内面３０１と第２外面２３との相対移動、及び第１前面１１と第３後面３２との相対移動が実施されることとした。ブレーカ材５０（５０Ｃ）は省略されてもよい。例えば、配管４００の外面４０１及び第１内面１４の少なくとも一方に塗布された潤滑油（ワックス）によって、配管４００の外面４０１と第１内面１４とが相対移動してもよい。第１後面１２及び第２前面２１の少なくとも一方に塗布された潤滑油によって、第１後面１２と第２前面２１とが相対移動してもよい。貫通孔３００の内面３０１及び第２外面２３の少なくとも一方に塗布された潤滑油によって、貫通孔３００の内面３０１と第２外面２３とが相対移動してもよい。第１前面１１及び第３後面３２の少なくとも一方に塗布された潤滑油によって、第１前面１１と第３後面３２とが相対移動してもよい。   In each of the above-described embodiments, by providing the sheet-shaped breaker material 50 (50C), the relative movement between the outer surface 401 and the first inner surface 14 of the pipe 400, the first rear surface 12 and the second front surface 21 The relative movement, the relative movement between the inner surface 301 and the second outer surface 23 of the through hole 300, and the relative movement between the first front surface 11 and the third rear surface 32 are performed. The breaker material 50 (50C) may be omitted. For example, the outer surface 401 and the first inner surface 14 of the pipe 400 may be relatively moved by the lubricating oil (wax) applied to at least one of the outer surface 401 and the first inner surface 14 of the pipe 400. The first rear surface 12 and the second front surface 21 may be relatively moved by the lubricating oil applied to at least one of the first rear surface 12 and the second front surface 21. The inner surface 301 and the second outer surface 23 of the through hole 300 may be relatively moved by the lubricating oil applied to at least one of the inner surface 301 and the second outer surface 23 of the through hole 300. The first front surface 11 and the third rear surface 32 may be relatively moved by the lubricating oil applied to at least one of the first front surface 11 and the third rear surface 32.

なお、上述の各実施形態においては、伸縮性部材３０（３０Ｂ、３０Ｃ）として、シリコンシーラントを用いることとした。伸縮性部材３０（３０Ｂ、３０Ｃ）は、高い伸縮性を有し、かつ、液密性（水密性）を有する素材であれば、シリコンシーラントに限定されない。例えば、伸縮性部材３０（３０Ｂ、３０Ｃ）として、例えばポリブタジエン系の液状ゴムを採用してもよい。また、伸縮性部材３０（３０Ｂ、３０Ｃ）としては、ゴム状シートを採用することもできる。   In each of the above-described embodiments, a silicon sealant is used as the stretchable member 30 (30B, 30C). The stretchable member 30 (30B, 30C) is not limited to a silicon sealant as long as it is a material having high stretchability and liquid tightness (water tightness). For example, as the stretchable member 30 (30B, 30C), for example, polybutadiene-based liquid rubber may be employed. Moreover, as the elastic member 30 (30B, 30C), a rubber-like sheet can also be adopted.

なお、上述の各実施形態においては、壁部２００が発電プラントの建屋の外壁部であり、第１空間ＳＰ１が建屋の外部空間であり、第２空間ＳＰ２が建屋の内部空間であることとした。壁部２００は、建屋の外壁部でなくてもよい。壁部２００は、建屋の内部空間に配置されている壁部でもよい。第１空間ＳＰ１及び第２空間ＳＰ２のそれぞれが、建屋の内部空間の一部でもよい。   In each of the above-described embodiments, the wall portion 200 is the outer wall portion of the building of the power plant, the first space SP1 is the external space of the building, and the second space SP2 is the internal space of the building. . The wall part 200 may not be the outer wall part of a building. The wall part 200 may be a wall part arranged in the internal space of the building. Each of the first space SP1 and the second space SP2 may be a part of the internal space of the building.

なお、上述の各実施形態においては、配管４００が金属製であることとした。配管４００は、塩化ビニールのような合成樹脂製でもよいし、コンクリート製でもよい。配管４００の材料に基づいて、例えばプライマー層４０の材料が選択される。   In each of the above-described embodiments, the pipe 400 is made of metal. The pipe 400 may be made of a synthetic resin such as vinyl chloride, or may be made of concrete. Based on the material of the pipe 400, for example, the material of the primer layer 40 is selected.

なお、上述の各実施形態において、配設部材４００は、配管又はダクトのような、流体が流れる部材でもよいし、電気ケーブルのような、電流が流れる部材でもよい。   In each of the embodiments described above, the arrangement member 400 may be a member through which a fluid flows, such as a pipe or a duct, or a member through which a current flows, such as an electric cable.

１０ 第１シール材
１０Ｃ 第１シール材
１０Ｊ シール材（比較例）
１０Ｒ 内側部分
１１ 第１前面
１２ 第１後面
１３ 第１外面
１４ 第１内面
２０ 第２シール材
２０Ｃ 第２シール材
２１ 第２前面
２２ 第２後面
２３ 第２外面
２４ 第２内面
３０ 伸縮性部材
３０Ｂ 伸縮性部材
３０Ｃ 伸縮性部材
３０Ｊ 伸縮性部材（比較例）
３１ 第３前面
３２ 第３後面
３３ 第３外面
３４ 第３内面
４０ プライマー層
５０ ブレーカ材
５０Ｃ ブレーカ材
５０Ｊ ブレーカ材（比較例）
１００ シール構造
１００Ｂ シール構造
１００Ｃ シール構造
１００Ｊ シール構造
２００ 壁部
２０１ 外面
２０２ 内面
３００ 貫通孔
３０１ 内面
４００ 配設部材（配管）
４０１ 外面
５００ スリーブ
ＡＸ 中心軸（軸）
ＳＰ１ 第１空間（外部空間）
ＳＰ２ 第２空間（内部空間） 10 1st sealing material 10C 1st sealing material 10J Sealing material (comparative example)
10R Inner portion 11 First front surface 12 First rear surface 13 First outer surface 14 First inner surface 20 Second sealing material 20C Second sealing material 21 Second front surface 22 Second rear surface 23 Second outer surface 24 Second inner surface 30 Stretchable member 30B Elastic member 30C Elastic member 30J Elastic member (comparative example)
31 3rd front surface 32 3rd rear surface 33 3rd outer surface 34 3rd inner surface 40 Primer layer 50 Breaker material 50C Breaker material 50J Breaker material (comparative example)
DESCRIPTION OF SYMBOLS 100 Seal structure 100B Seal structure 100C Seal structure 100J Seal structure 200 Wall part 201 Outer surface 202 Inner surface 300 Through-hole 301 Inner surface 400 Arrangement member (pipe)
401 Outer surface 500 Sleeve AX Central axis (axis)
SP1 1st space (external space)
SP2 2nd space (internal space)

Claims (5)

第１空間と第２空間とを仕切る壁部に形成された貫通孔と前記貫通孔に配置される配設部材とをシールするシール構造であって、
前記貫通孔の内面と前記配設部材の外面との間に充填され、前記第１空間側を向く第１前面と、前記第２空間側を向く第１後面と、前記貫通孔の内面に固定される第１外面と、前記配設部材の外面に相対移動可能に接続される第１内面と、を有する第１シール材と、
前記第１シール材よりも前記第２空間側で前記貫通孔の内面と前記配設部材の外面との間に充填され、前記第１後面に相対移動可能に接続される第２前面と、前記第２空間側を向く第２後面と、前記貫通孔の内面に相対移動可能に接続される第２外面と、前記配設部材の外面に固定される第２内面と、を有する第２シール材と、
前記第１シール材よりも前記第１空間側に配置され、前記第１空間側を向く第３前面と、前記第１前面に相対移動可能に接続される第３後面と、前記貫通孔の内面に固定される第３外面と、前記配設部材の外面に固定される第３内面と、を有する伸縮性部材と、
を備えるシール構造。 A seal structure that seals a through hole formed in a wall partitioning the first space and the second space and an arrangement member disposed in the through hole;
Filled between the inner surface of the through hole and the outer surface of the arrangement member, fixed to the first front surface facing the first space side, the first rear surface facing the second space side, and the inner surface of the through hole A first sealing material having a first outer surface and a first inner surface connected to the outer surface of the arrangement member so as to be relatively movable;
A second front surface which is filled between the inner surface of the through hole and the outer surface of the arrangement member on the second space side with respect to the first seal material, and is connected to the first rear surface so as to be relatively movable; A second sealing material having a second rear surface facing the second space side, a second outer surface connected to the inner surface of the through-hole so as to be relatively movable, and a second inner surface fixed to the outer surface of the arrangement member. When,
A third front surface disposed closer to the first space than the first sealing material and facing the first space; a third rear surface connected to the first front surface so as to be relatively movable; and an inner surface of the through hole A stretchable member having a third outer surface fixed to the outer surface and a third inner surface fixed to the outer surface of the arrangement member;
Seal structure comprising. 前記配設部材の軸方向に関して、前記第１外面の寸法は、前記第１内面の寸法よりも大きい請求項１に記載のシール構造。   The seal structure according to claim 1, wherein a dimension of the first outer surface is larger than a dimension of the first inner surface with respect to an axial direction of the arrangement member. 前記第３前面と前記第３後面と前記第１前面とは平行であり、前記第１後面は、前記第１前面に対して傾斜する請求項２に記載のシール構造。   The seal structure according to claim 2, wherein the third front surface, the third rear surface, and the first front surface are parallel, and the first rear surface is inclined with respect to the first front surface. 前記配設部材の軸方向に関して、前記第３内面の寸法は、前記第３外面の寸法よりも大きい請求項１から請求項３のいずれか一項に記載のシール構造。   The seal structure according to any one of claims 1 to 3, wherein a dimension of the third inner surface is larger than a dimension of the third outer surface with respect to an axial direction of the arrangement member. 前記配設部材の外面と第１内面との間、前記第１後面と前記第２前面との間、前記貫通孔の内面と前記第２外面との間、及び前記第１前面と前記第３後面との間のそれぞれに配置され、前記相対移動を許容するシート状のブレーカ材を備える請求項１から請求項４のいずれか一項に記載のシール構造。   Between the outer surface of the arrangement member and the first inner surface, between the first rear surface and the second front surface, between the inner surface of the through hole and the second outer surface, and between the first front surface and the third surface. The seal structure according to any one of claims 1 to 4, further comprising a sheet-shaped breaker material that is disposed between each of the rear surfaces and allows the relative movement.

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