Weatherproofing structure for pipe penetration and construction method

Abstract

To provide a weathering structure for a pipe penetration part that has a simple configuration and can reduce time and effort for construction, and to provide a method for constructing the same.SOLUTION: A weathering structure for a pipe penetration part includes: a pipe 2 installed so as to penetrate an opening 1a of a wall 1; a collar material 5 provided with a flange part 5b expanding on a radial outside in an end of a tubular trunk part 5a; and a support body 8 for fixing the pipe 2 to a building structure in the vicinity of the opening 1a of the wall 1. The collar material 5 is installed so that the pipe 2 penetrates the trunk part 5a thereof in an axial direction and the flange part 5b thereof comes into contact with the wall 1, where a seal material 6a is applied between the pipe 2 and the trunk part 5a and a seal material 6b is applied between the wall 1 and the flange part 5b.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a weatherproofing structure provided at a portion where a pipe penetrates a wall or the like, and a method for constructing the same. [Background technology]

[0002] In various facilities such as office buildings and factories, various types of pipes are sometimes installed to penetrate walls that face the outside, such as the outer wall of a pigeon coop in a penthouse or a machine room. If the wall faces the outdoors, a structure called a flashing to prevent rainwater from entering between the pipes that penetrate the wall and the wall is installed on the outdoor side of the pipe penetrations.

[0003] Patent Document 1 listed below describes an example of the structure of a weatherproofing provided at such a pipe penetration. The weatherproofing shown in Figure 2 of Patent Document 1 includes a steel plate wall attached to the exterior wall of a building (for example, a steel plate wall covering the vertical opening of a turret dovecot) and a rain cover composed of a fixed part and a movable part. The fixed part is cylindrical and protrudes outdoors from the edge of an opening in the steel plate wall for passing a pipe through, and its tip is provided with a flange-like protrusion that extends radially outward. The movable part is provided in the exterior plate of the pipe that is installed to pass through the fixed part, and is flange-like and protrudes radially outward. The outer periphery of the movable part is folded back radially inward to embrace and engage with the tip of the fixed part. With this structure, the piping is held to the exterior wall and steel plate wall of the building by being suspended from the fixed part that engages with the movable part, and the tip of the fixed part is surrounded by the movable part, preventing rainwater from entering the gap between the fixed part and the piping (note that this structure cannot completely prevent rainwater from entering; some rainwater will seep through the gap between the fixed part and the movable part, but this rainwater is discharged through a drain hole provided below the movable part). Furthermore, the piping is allowed to move to a certain extent relative to the exterior wall and steel plate wall of the building. In particular, when a heat transfer medium for air conditioning flows through the piping, the piping expands and contracts depending on the temperature of the heat transfer medium, so it is necessary to hold the piping without completely fixing it to the exterior wall of the building, while allowing for movement and deformation. This type of flashing structure is therefore provided. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 11-248043 [Patent Document 2] Japanese Patent Application Publication No. 10-332053 Summary of the Invention [Problem to be solved by the invention]

[0005] However, the components used in the above-mentioned conventional weatherproofing structures, such as the steel plate walls and rain covers, are custom-made for each construction project to suit the installation conditions of the piping on the exterior wall. To manufacture these components, it is necessary to align four axes: the opening in the steel plate wall, the fixed and movable parts of the rain cover, and the piping. This requires a lot of time and effort to align the axes and measure the dimensions of each part. As a result, the construction costs for the piping penetrations are high, and there are cases where waiting times for the steel plate walls and rain covers to be completed extend the construction period.

[0006] Incidentally, the above-mentioned Patent Document 2 also describes a weatherproofing structure for pipe penetrations that is slightly different from that described in Patent Document 1, but this also has the same problem as Patent Document 1 in that the opening in the steel plate wall that serves as the cover plate is a custom-made product specially tailored to the site and requires many parts.

[0007] In view of the above circumstances, the present invention aims to provide a weatherproofing structure for a pipe penetration part and an installation method therefor that have a simple configuration and can reduce the labor required for installation. [Means for solving the problem]

[0008] The present invention comprises a pipe disposed to pass through an opening in a wall; a collar member having a flange extending radially outward from an end of a cylindrical body; a support for securing the pipe to a building structure adjacent the wall opening; The collar member has a body portion through which the pipe passes in the axial direction, and The body portion protrudes outward from the opening in the wall, and The flange is provided so as to contact the wall. 、 A seal is provided between the tube and the body, and a seal is provided between the wall and the flange. The present invention relates to a weatherproofing structure for a pipe penetration section, characterized by the above.

[0009] In the weatherproofing structure for a pipe penetration of the present invention, a gap support material can be provided between the pipe and the body portion so as to be compressed between the outer surface of the pipe and the inner surface of the body portion.

[0010] In the weatherproofing structure for a piping penetration of the present invention, the pipe is configured to include a pipe body through which a fluid flows, a heat-insulating material surrounding the outer surface of the pipe body, and a racking cover covering the surface of the heat-insulating material, and the collar material is arranged so that the body covers the racking cover that forms the surface of the pipe, and the sealing material between the pipe and the body can be applied between the surface of the racking cover and the body.

[0011] In the weatherproofing structure for a piping penetration of the present invention, a gap support material can be provided between the pipe and the body portion so as to be compressed between the surface of the racking cover and the inner surface of the body portion.

[0012] The present invention also provides A construction method for a weatherproofing structure for a pipe penetration, which uses a pipe including a straight portion, a collar material having a flange portion extending radially outward at the end of a cylindrical body portion, and a support for fixing the pipe to an architectural structure, For wall openings of the tube An installation step of a pipe that penetrates the straight portion and is fixed to a support joined to the architectural structure; The body portion of the collar material, The pipe is connected from the unconnected end including the straight section during construction. The collar portion of the collar member is disposed facing the wall. Steps and Equipped with , after that, moving the collar material toward the wall along the axis of the tube passing through the wall opening; applying a seal between the tube and the body and between the wall and the collar; Run 、 The collar member is configured so that the body portion protrudes outward from the opening in the wall and the flange portion contacts the wall. The present invention relates to a construction method for a weatherproof structure for a pipe penetration portion, characterized by the above.

[0013] In the construction method of the rainproofing structure for a pipe penetration of the present invention, a step of attaching a gap support material to a position on the surface of the pipe that will be covered by the body portion can be carried out before the step of moving the collar material toward the wall along the axial direction of the pipe that has been passed through an opening in the wall.

[0014] The present invention also provides A construction method for a weatherproofing structure for a pipe penetration, which uses a pipe including a straight portion, a collar material having a flange portion extending radially outward at the end of a cylindrical body portion, and a support for fixing the pipe to an architectural structure, For wall openings of the tube An installation step of a pipe that penetrates the straight portion and is fixed to a support joined to the architectural structure; The body portion of the collar material, The pipe body including the straight portion through which the fluid flows during construction is connected to the unconnected end of the pipe body. The collar portion of the collar member is disposed facing the wall. Steps and Equipped with after that, A step of wrapping a heat insulating material around the pipe body to surround the outer circumferential surface of the pipe body, and then installing a racking cover to cover the surface of the heat insulating material; Attaching a gap support to a surface of the racking cover of the pipe at a position covered by the body as a backup material for a seal between the racking cover of the pipe and the body; a step of moving the body portion toward the wall along the axial direction of the pipe body with the racking cover passed through the opening in the wall so that the inner diameter of the body portion does not come into contact with the surface of the racking cover; and applying a sealant between the racking surface of the tube, the wall, and the collar. 、 The collar member is disposed so that the body portion protrudes outward from the opening in the wall and the flange portion contacts the wall. To do The present invention relates to a construction method for a weatherproof structure for a pipe penetration part, characterized by the above. [Effects of the Invention]

[0015] According to the weatherproofing structure for a pipe penetration and the construction method thereof of the present invention, the excellent effect of reducing the construction work by using a simple configuration can be achieved. [Brief explanation of the drawings]

[0016] [Figure 1] 1 is a front cross-sectional view showing an example of a weatherproofing structure for a pipe penetration according to an embodiment of the present invention. [Figure 2] FIG. 2 is a perspective view showing the external appearance of the weatherproofing structure for the pipe penetration portion of FIG. 1. [Figure 3]1 is a flowchart illustrating an example of the procedure for a construction method for a weatherproofing structure for a pipe penetration according to an embodiment of the present invention. [Figure 4] This is a front view showing one stage in the construction of a weatherproofing structure for a pipe penetration, with the wall shown in cross section. [Figure 5] FIG. 10 is a front view showing another stage in the construction of the weatherproofing structure for the pipe penetration portion. [Figure 6] This is a front view showing yet another stage in the construction of the weatherproofing structure for the pipe penetration, showing the wall in cross section and a portion of the pipe cut away. [Figure 7] This is a front view showing yet another stage in the construction of the weatherproofing structure for the pipe penetration, with the wall shown in cross section. DETAILED DESCRIPTION OF THE INVENTION

[0017] Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.

[0018] 1 and 2 show an example of a weatherproofing structure for a pipe penetration according to the present invention. An opening 1a is provided in a wall 1, such as the exterior wall of a building, and a pipe 2 is installed so as to pass through this opening 1a. It is desirable that the wall 1 be an exterior wall with a smooth surface without porosity, such as a smooth-surfaced lightweight aerated concrete or a steel plate finish.

[0019] In this embodiment, the pipe 2 is assumed to be a pipe for transporting a heat transfer medium for an air conditioning system, and the pipe 2 has a structure in which the outer surface of the pipe body 2a, through which a fluid such as a heat transfer medium flows, is surrounded by a heat insulating material 3, and further, a racking cover 4 covers the outer surface of the outer wall of the heat insulating material 3, at the center.

[0020] In this embodiment, the weatherproofing structure employs a structure including a collar 5 as shown in Figures 1 and 2. The collar 5 is a component comprising a cylindrical body 5a and a flange 5b provided at the axial end of the body 5a. The flange 5b is a plate-like portion provided at one end of the body 5a, and is formed so as to extend radially outward from the edge of the circular body 5a, forming a disk-like shape overall. The collar 5 can be, for example, a product sold as a spiral duct collar.

[0021] The collar 5 is installed so that the pipe 2 passes through its cylindrical body 5a in the axial direction, and the flange 5b at one end is positioned so that it contacts the wall 1 (with a sealant 6a, described below, sandwiched between them). Sealing materials 6a and 6b are applied between the body 5a and the outer surface of the pipe 2, and between the flange 5b and the wall 1, respectively. More specifically, the collar 5 is installed so that the body 5a further covers the racking cover 4, which forms the surface of the pipe 2 installed on the exterior wall. The sealant 6a between the pipe 2 and the body 5a is applied between the surface of the racking cover 4 and the body 5a. The sealants 6a and 6b are soft, putty-like materials that adhere to the pipe 2, the collar 5, and the wall 1 (solid materials such as metal, resin, and wood) and have a certain degree of flexibility. For example, materials commercially available as caulking putty can be used.

[0022] In this way, the collar 5 and the sealants 6a and 6b hold the pipe 2 against the wall 1, and these sealants 6a and 6b close the gaps between the body 5a and the outer surface of the pipe 2, and between the flange 5b and the wall 1. The sealants 6a and 6b deform as needed and follow the movements of each component while keeping the gaps closed, thereby preventing rainwater from entering between the wall 1, pipe 2, and collar 5 while allowing the pipe 2 to move relative to the wall 1.

[0023] Furthermore, a gap support material 7 is sandwiched between the body 5a and the pipe 2. This gap support material 7 is a string-like material made of soft, elastic foamed resin or the like, and can be a material sold for purposes or names such as backup material. When this gap support material 7 is wrapped around the outer periphery of the racking cover 4 attached to the surface of the pipe 2 and a collar material 5 is placed on top of it so that the body 5a covers the gap support material 7, the gap support material 7 is compressed between the inner periphery of the body 5a and the outer periphery of the pipe 2 (the surface of the racking cover 4), and the elastic force holds the pipe 2 in an appropriate position relative to the collar material 5.

[0024] Pipe 2 is connected to a fixed pipe (another pipe fixed to the structure) inside the building, and is further fixed to the building's structural body (such as the beams and walls that form the building's framework, and the steel materials firmly fixed thereto) by a fixing part 10 on the exterior wall side as a penetrating pipe. The joint between fixing part 10 may be used to secure a steel band, allowing thermal contraction to escape to both sides of this fixing part. The location of fixing part 10 near the wall opening in this example minimizes thermal contraction variation at opening 1a. This fixes pipe 2 to wall 1 or the building or other structure in which wall 1 is installed (for convenience, the part where pipe 2 is fixed is referred to as support part 8). The support part 8 should be located as close as possible to the point where pipe 2 penetrates wall 1 (preferably within 10 m of wall 1 along the axial direction of pipe 2, more preferably between 10 cm and 7 m). When the pipe 2 is installed against the wall 1 using the above-described structure using the collar material 5 and sealing materials 6a, 6b, the supporting force of the pipe 2 due to the weatherproofing structure is weaker than the structure described in Patent Document 1, and the amount of movement of the pipe 2 allowed against the wall 1 is smaller.

[0025] In the weatherproofing structure described in Patent Document 1, the pipe is supported against the exterior wall of the building at the penetration part by engaging metal members (the movable part and fixed part that make up the rain cover), but in the structure of this embodiment, the pipe 2 is supported against the wall 1 by soft sealants 6a, 6b and gap support material 7. For this reason, the support strength at the penetration part of the pipe 2 tends to be low.

[0026] Furthermore, the material of the pipe 2 expands and contracts depending on the temperature, causing it to move and deform relative to the wall 1. In particular, when a heat transfer medium for air conditioning or the like flows through the inside of the pipe 2, the amount of expansion and contraction of the pipe 2 is large. A weatherproofing provided at a pipe penetration part needs to allow for movement of this pipe 2, but in the case of a structure such as that of the present embodiment, compared to a structure such as that described in Patent Document 1, which allows movement of the pipe by movement between metal members, the absolute amount of movement that can be allowed is smaller because movement of the pipe 2 is allowed by deformation of the sealing materials 6a and 6b.

[0027] Therefore, the support 8 is provided as close as possible to the penetration part to more firmly support the pipe 2 and fix the pipe 2 at that position to keep the amount of movement of the pipe 2 in the penetration part within an allowable range.

[0028] Specifically, if the pipe 2 is made of stainless steel, the linear expansion coefficient is 1.2 × 10 -5 If a heat transfer medium for air conditioning flows inside the pipe 2, the temperature difference of the heat transfer medium depending on the season is usually at most 50°C and does not exceed 100°C. In other words, the temperature difference of the pipe 2 varies depending on the season, with a difference of about 1.2 × 10 per meter. -5 ×50=6.0×10 -4 [m], or approximately 0.6 mm. If the length of the piping between wall 1 and the vertical pipe inside the building is, for example, 5 m, the position of pipe 2 at the penetration in wall 1 will shift axially by approximately 3 mm depending on the season. Furthermore, the vertical pipe also expands and contracts, and if it is held down by fixing part 10 near the opening in wall 1, the amount of movement due to expansion and contraction of pipe 2 will be within the allowable amount due to deformation of sealants 6a and 6b, and sealants 6a and 6b will expand and contract between pipe 2 and collar material 5, and between wall 1 and collar material 5, thereby following these components and sealing the gaps between the components, thereby sufficiently preventing rainwater from entering.

[0029] An example of a procedure for constructing such a weatherproofing structure for a pipe penetration will be described with reference to the flowchart of FIG.

[0030] First, as shown in FIG. 4, the pipe body 2a (straight portion) of the pipe 2 inserted through the opening in the wall 1 is connected to an installed pipe inside the building (here, the connection portion with a vertical pipe installed on the indoor side of the wall 1), and then firmly fixed to the building structure with the fixing portion 10 (step S1). Next, as shown in FIG. 5, the body 5a of the collar material 5 is passed through the unconnected end of the pipe 2 near the wall 1 onto the in-construction pipe 2 (i.e., the pipe body 2a) before racking (step S2). At this time, the collar material 5 is oriented relative to the pipe 2 so that the flange 5b on one end of the body 5a faces the wall 1. The inner diameter of the body 5a of the collar material 5 is larger than the outer diameter of the pipe 2 (pipe body 2a) in this state. Next, as shown in Figure 6, the pipe body 2a is wrapped with insulation material 3, and the insulation finish inside the building is performed on the fixed part side, and on the outside side of the wall 1, a racking cover 4 is wrapped around it while passing through the opening 1a, and racking is performed on the pipe 2 (step S3; for the sake of convenience, Figure 6 shows a state in which part of the racking of the pipe 2 (the insulation material 3 and racking cover 4) is cut out). Here, the order of the step (step S1) of fixing the pipe body 2a (straight portion) of the pipe 2 to the building structure with the fixing portion 10 and the step (step S2) of passing the body portion 5a of the collar material 5 through the unconnected end of the pipe 2 near the wall 1 to the pipe 2 (i.e., the pipe body 2a) may be reversed.

[0031] The gap support material 7 is attached by wrapping it around the racking cover 4 in a circular fashion around the surface of the pipe 2 near the wall 1, in a position that will be covered by the body 5a of the collar material 5 in the completed state (see Figures 1 and 2) (step S4; see Figure 6). Here, the gap support material 7 serves as a backup material for the seal between the racking cover 4 and the body 5a of the pipe 2. Next, as shown by the arrow in Figure 6, the position of the body 5a is adjusted so that the inner diameter of the collar material 5 does not come into contact with the surface of the racking cover 4, and the collar material 5 is moved along the axis of the pipe 2 toward the wall 1 until the flange 5b contacts the wall 1 (step S5; see Figure 7). At this time, the gap support material 7 is compressed between the inner circumferential surface of the body 5a of the collar material 5 and the surface of the racking cover 4, and its elastic force appropriately constrains the relative positions of the pipe 2 and the collar material 5. Sealing materials 6a, 6b are applied between the pipe 2 and the body 5a, and between the wall 1 and the flange 5b (step S6), completing the construction (see Figs. 1 and 2).

[0032] In the weatherproofing structure of a pipe penetration part such as this embodiment, a collar material 5 having a simple structure is used instead of the rain cover in the weatherproofing as described in Patent Document 1, for example, and the collar material 5, sealing materials 6a, 6b and gap support material 7 support the pipe 2 and prevent rainwater from entering.

[0033] The rain cover and the steel plate wall to which it is attached, as described in Patent Document 1, are custom-made with complex structures, requiring significant time and effort for processes such as centering, sizing, and installation on the steel plate wall. However, in this embodiment, the functions roughly equivalent to those of the rain cover are fulfilled by the collar material 5, sealing materials 6a and 6b, and gap support material 7. Furthermore, a component equivalent to the steel plate wall is not required; an opening 1a can be directly formed in the wall 1 constituting the building, and a rainproof structure using the collar material 5 can be attached thereto. The collar material 5 is a component with a simple structure, and especially when a spiral duct collar is used as the collar material 5, products in sizes corresponding to pipes of various diameters are available at low cost. In other words, a collar material 5 that fits the dimensions of the pipe 2 can be easily obtained at low cost without having to be custom-made. Moreover, even if there is some misalignment between the opening 1a in the wall 1, the pipe 2, and the collar material 5, the gaps between the components can be filled with soft sealing materials 6a and 6b, thereby sufficiently preventing rainwater intrusion. Therefore, precise sizing and centering are not required, and installation is easy. Therefore, the time and cost required for manufacturing the rain cover can be significantly reduced, and the construction period can be shortened.

[0034] The embodiment described herein is merely an example, and the configuration of each part may be modified as appropriate depending on the site conditions, etc., when implementing the present invention. For example, while the opening 1a through which the pipe 2 penetrates has been illustrated as being directly provided in the wall 1, it may alternatively be provided by attaching a member, such as the steel plate wall in Patent Document 1, to the wall and providing the opening therein. Regarding the pipe 2, while the pipe 2 is assumed to be a heat transfer medium pipe for air conditioning, equipped with the insulation material 3 and the racking cover 4, any suitable configuration may be envisioned depending on the pipe's intended use and structure. Furthermore, regarding the support 8 that fixes the pipe 2 separately from the position where the pipe 2 penetrates the wall 1, it has been described as being connected to a fixed pipe, but it may also be provided with other fixtures for fixing the pipe 2 to structural materials, such as the wall 1 or floor.

[0035] Furthermore, with regard to each step shown in Figure 3, the order may be changed as appropriate, some steps may be omitted, or other steps may be added, as long as the construction can be carried out without any problems, and the content of the steps may also be changed as appropriate.

[0036] As described above, the weatherproofing structure for the piping penetration part of this embodiment comprises the pipe 2 that is arranged to penetrate the opening 1a of the wall 1, the collar material 5 having a flange 5b that extends radially outward at the end of the cylindrical body 5a, and a support 8 that fixes the pipe 2 to the structural body of the building located near the opening 1a of the wall 1, and the collar material 5 is arranged so that the pipe 2 penetrates the body 5a in the axial direction and the flange 5b contacts the wall 1, and a sealing material 6a is applied between the pipe 2 and the body 5a, and a sealing material 6b is applied between the wall 1 and the flange 5b.

[0037] In addition, in the construction method of the weatherproofing structure of the pipe penetration part of this embodiment, the following steps are carried out: construction step S1 in which the pipe body 2a (straight part) of the pipe 2 inserted into the opening in the wall 1 is connected to an already constructed pipe inside the building (here, the connection part with the vertical pipe installed on the indoor side of the wall 1), and then firmly fixed to the structural body of the building with the fixing part 10; next, step S2 in which the body 5a of the collar material 5, which has a flange part 5b that extends radially outward at the end of the cylindrical body 5a, is passed through the unconnected end of the pipe 2 being constructed; step S5 in which the collar material 5 is moved toward the wall 1 along the axial direction of the pipe 2 passed through the opening 1a in the wall 1; and step S6 in which sealing materials 6a, 6b are applied between the pipe 2 and the body part 5a and between the wall 1 and the flange part 5b.

[0038] In this way, the pipe 2 is supported by a simple collar material 5 and sealing materials 6a and 6b, and the deformation of the sealing materials 6a and 6b allows the pipe 2 to move relative to the wall 1, while preventing rainwater from entering.

[0039] In the weatherproofing structure of the pipe penetration section of this embodiment, a gap support material 7 is provided between the pipe 2 and the body 5a so as to be compressed between the outer surface of the pipe 2 and the inner surface of the body 5a.

[0040] In addition, in the construction method of the weatherproofing structure for the pipe penetration section of this embodiment, before step S5 of moving the collar material 5 toward the wall 1 along the axial direction of the pipe 2 passed through the opening 1a in the wall 1, step S4 of attaching the gap support material 7 to a position on the surface of the pipe 2 that will be covered by the body portion 5a is carried out.

[0041] In this way, the pipe 2 can be held in an appropriate position relative to the collar member 5 by the elastic force of the gap support member 7.

[0042] In the weatherproofing structure for a pipe penetration of this embodiment, the pipe 2 is configured to include a pipe body 2a through which a fluid flows, a heat insulating material 3 surrounding the outer periphery of the pipe body 2a, and a racking cover 4 covering the surface of the heat insulating material 3, and the collar material 5 is provided so that the body 5a covers the racking cover 4 that forms the surface of the pipe 2, and the sealing material 6a between the pipe 2 and the body 5a is provided between the surface of the racking cover 4 and the body 5a. In this way, the pipe 2 to which the racking is applied can achieve the above-mentioned operational effects.

[0043] Furthermore, in the weatherproofing structure for a piping penetration part of this embodiment, a gap support member 7 is provided between the pipe 2 and the body 5a so as to be compressed between the surface of the racking cover 4 and the inner surface of the body 5a. In this way, the racked pipe 2 can be held in an appropriate position relative to the collar material 5 by the elastic force of the gap support member 7.

[0044] Furthermore, in the construction method of the weatherproofing structure of the pipe penetration part of this embodiment, the pipe construction step S1 is to penetrate the pipe body 2a (straight part) through the opening 1a of the wall 1 and fix it to the support 8 joined to the building structure, the cylindrical body 5a of the collar material 5 provided with the flange part 5b that spreads outward in the radial direction at the end of the cylindrical body 5a is passed from the unconnected end of the pipe body 2a including the straight part through which the fluid flows during construction, and the insulation material 3 is wrapped around the pipe body 2a to surround the outer surface of the pipe body 2a, and then the racking cover 4 is constructed to cover the surface of the insulation material 3. Step S3, step S4 of attaching a gap support material 7 to the surface of the racking cover of the pipe 2 at a position covered by the body 5 as a backup material for the sealing material between the racking cover 4 of the pipe 2 and the body 5a, step S5 of moving the body 5a toward the wall 1 along the axial direction of the pipe body 2a with the racking cover 4 passed through the opening 1a in the wall 1 so that its inner diameter does not come into contact with the surface of the racking cover 4, and step S6 of applying sealing materials 6a, 6b between the racking surface of the pipe 3, the wall 1 and the flange 5b are carried out.

[0045] Therefore, according to the present embodiment, the construction work can be suitably reduced with a simple configuration.

[0046] Furthermore, the weatherproofing structure for pipe penetrations and its construction method of the present invention are not limited to the above-mentioned embodiments, and it goes without saying that various modifications can be made within the scope of the gist of the present invention. [Explanation of symbols]

[0047] 1. Wall 1a aperture 2 tubes 2a tube body 3 Heat insulation material 4 Racking cover 5 Color materials 5a Torso 5b Tsubabe 6a Sealing material 6b Sealing material 7 Gap support material 8 Support

Claims

1. a pipe extending through an opening in the wall; a collar member having a flange extending radially outward from an end of a cylindrical body; a support for securing the pipe to a building structure adjacent the wall opening; the collar member is provided such that the tube passes through the body portion in the axial direction, the body portion protrudes outward from the opening in the wall, and the flange portion contacts the wall; A seal is provided between the tube and the body, and a seal is provided between the wall and the flange. A weatherproof structure for pipe penetrations characterized by the above.

2. A gap support material is provided between the pipe and the body portion so as to be compressed between the outer peripheral surface of the pipe and the inner peripheral surface of the body portion.

2. The weatherproofing structure for a pipe penetration part according to claim 1,

3. The pipe is configured to include a pipe body through which a fluid flows, a heat insulating material surrounding the outer peripheral surface of the pipe body, and a racking cover covering the surface of the heat insulating material, The collar material is provided so that the trunk portion covers a racking cover that forms the surface of the pipe, The seal material between the pipe and the body is provided between the surface of the racking cover and the body.

2. The weatherproofing structure for a pipe penetration part according to claim 1,

4. A gap support material is provided between the pipe and the body portion so as to be compressed between the surface of the racking cover and the inner circumferential surface of the body portion. The weatherproofing structure for a pipe penetration part according to claim 3, characterized in that:

5. A construction method for a weatherproof structure for a pipe penetration, using a pipe including a straight portion, a collar material provided with a flange portion extending radially outward at the end of a cylindrical body portion, and a support for fixing the pipe to an architectural structure, A pipe installation step in which the straight portion of the pipe is passed through an opening in the wall and fixed to a support joined to the architectural structure; and a step of passing the body portion of the collar material through an unconnected end portion of the pipe including the straight portion under construction, and arranging the flange portion of the collar material facing the wall side, Thereafter, moving the collar material toward the wall along the axial direction of the tube passing through the wall opening; applying a seal between the tube and the body and between the wall and the collar; Run A construction method for a weatherproof structure for a pipe penetration, characterized in that the collar material is configured so that the body portion protrudes outside the opening in the wall and the flange portion contacts the wall.

6. before the step of moving the collar material toward the wall along the axial direction of the tube through the wall opening; performing a step of attaching a gap support to the surface of the pipe at a position covered by the body portion; 6. A construction method for a weatherproof structure for a pipe penetration portion according to claim 5,

7. A construction method for a weatherproof structure for a pipe penetration, using a pipe including a straight portion, a collar material provided with a flange portion extending radially outward at the end of a cylindrical body portion, and a support for fixing the pipe to an architectural structure, A pipe installation step in which the straight portion of the pipe is passed through an opening in the wall and fixed to a support joined to the architectural structure; and a step of inserting the body portion of the collar material from an unconnected end portion of the pipe body including the straight portion through which a fluid flows during construction, and arranging the flange portion of the collar material facing the wall side, Then, a step of winding a heat insulating material that surrounds the outer peripheral surface of the pipe body around the pipe body, and then installing a racking cover that covers the surface of the heat insulating material; Attaching a gap support to a surface of the racking cover of the pipe at a position covered by the body as a backup material for a seal between the racking cover of the pipe and the body; a step of moving the body portion toward the wall along the axial direction of the pipe body with the racking cover passed through the opening in the wall so that the inner diameter of the body portion does not come into contact with the surface of the racking cover; applying a sealant between the racking surface of the tube, the wall and the collar; The collar member is configured so that the body portion protrudes outward from the opening in the wall and the flange portion contacts the wall. A construction method for a weatherproof structure for a pipe penetration section, characterized by the above.

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