JP2007162853A - Pipe surface cover, temporary pipe and method of constructing temporary pipe - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a pipe surface cover that is excellent in durability and weather resistance, reduces costs and working hours, and is hard to peel off when it is superposed and bonded, and a temporary pipe and a method of constructing the temporary pipe. <P>SOLUTION: A composite sheet 22 is formed by interposing a polyethylene woven fabric 25 between a polyethylene or polypropylene film layer 24 and an aluminum foil layer 26 and integrating them together. An adhesive layer 23 is arranged on a surface 26a of the aluminum foil layer 26. A molded heat insulating material 11 of foam resin is brought into close contact with an outer surface 10a of a pipe body 10 so as to cover the outer surface 10a of the pipe body 10. The molded heat insulating material 11 is secured to the pipe body 10 by means of fixing members 12. The composite sheets 22 are bonded to the entire outer surface 11b of the molded heat insulating material 11 continuously in series in the lengthwise direction of the pipe body 1 by the adhesive layers 23. Dampproof adhesive tapes 14 are bonded to side edge portions of the composite sheets 22, and cover tapes 15 are bonded to end edge portions of the composite sheets 22. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a piping surface cover, a temporary piping, and a construction method for a temporary piping.

  2. Description of the Related Art Conventionally, as a cover for covering the surface of a pipe or the like, there is a cover formed by laminating and bonding an aluminum foil to a surface of a paperboard via a net material such as glass fiber or plastic fiber (for example, see Patent Document 1). There is also a heat insulating cover in which a glass cloth is laminated on the first layer on the surface and an aluminum foil is laminated on the second layer from the surface (for example, see Patent Document 2).

  When a conventional cover such as the cover described in Patent Document 1 is used, a heat insulating structure for piping is constructed as follows. First, the surface of the pipe is covered with a heat insulating material such as glass wool, and it is bound with an iron wire. A plurality of conventional covers are affixed to the outer surface of the heat insulating material, and a vinyl tape is affixed to cover the boundaries of the covers. The surface is covered with a plurality of exterior materials made of a metal plate or resin, and each exterior material is joined by folding, and the boundary is sealed to finish.

JP 2000-352494 A Japanese Patent Application Laid-Open No. 2004-132552

  However, the cover described in Patent Documents 1 and 2 has a surface made of aluminum foil or glass cloth, and the familiarity between the adhesive material on the inner surface and the aluminum foil or glass cloth on the inner surface is poor. There was a problem that the pressure-sensitive adhesive layer deteriorated due to wind and rain, and the surface layer easily peeled off from the adherend. For this reason, a weather-resistant exterior material has to be provided on the surface of the cover, and there is a problem that the cost of the material increases and the working time becomes long. Further, the cover described in Patent Document 1 has a problem that the surface is made of an aluminum foil, and the familiarity between the aluminum foil and the adhesive material is poor, so that the cover is easily peeled off even if they are laminated and pasted.

  The present invention has been made paying attention to such problems, and has excellent durability and weather resistance, can reduce costs and shorten work time, and is difficult to peel off when it is laminated and pasted. It aims at providing the construction method of a surface cover, temporary piping, and temporary piping.

  In order to achieve the above object, a pipe surface cover according to the present invention includes a composite sheet and an adhesive layer, and the composite sheet includes a woven or non-woven fabric of polyethylene fiber, a film layer made of polyethylene or polypropylene, and The adhesive layer is formed by being integrated with an aluminum foil layer, and the pressure-sensitive adhesive layer is provided on the surface of the aluminum foil layer.

  In the pipe surface cover according to the present invention, an adhesive layer having good compatibility with aluminum is provided on the surface of the aluminum foil layer under an appropriate treatment in a factory or the like. When affixed, the film is firmly adhered, and a polyethylene or polypropylene film layer is on the outside, and an aluminum foil layer is present in the lower layer, making it difficult for rainwater or the like to enter the adhesive layer. For this reason, compared with the case where an aluminum foil and glass cloth become an outer side, it is excellent in durability and a weather resistance. In addition, in the temporary construction of about 2 years or less, the surface of the polyethylene or polypropylene film layer is deteriorated and does not peel off or tear, so that it is not necessary to use a weather-resistant exterior material. Time can be shortened.

  When laminated and pasted, the adhesive layer provided on the surface of the aluminum foil layer sticks to the film layer made of polyethylene or polypropylene, so the bonding with the adhesive layer is stronger than the aluminum foil layer and difficult to peel off . For this reason, when it affixes on the surface side of piping, it can ensure airtightness in the edge part by affixing so that edges may overlap, and durability and a weather resistance can be improved.

  The temporary piping according to the present invention includes a piping main body, a molded heat insulating material, and a piping surface cover according to the present invention, and the molded heat insulating material is provided so as to cover an outer surface of the piping main body, and the piping surface cover Is affixed to the entire outer surface of the molded heat insulating material with the adhesive layer so as to cover the outer surface of the molded heat insulating material.

  The construction method of the temporary piping according to the present invention is provided with a molded heat insulating material so as to cover the outer surface of the piping main body, and the pipe surface cover according to the present invention is applied to the entire outer surface of the molded heat insulating material so as to cover the outer surface of the molded heat insulating material. It is characterized by sticking.

  The temporary piping according to the present invention and the construction method of the temporary piping according to the present invention are such that the pipe surface cover according to the present invention is applied to the entire outer surface of the molded heat insulating material with an adhesive layer so as to cover the outer surface of the molded heat insulating material. As a result, an aluminum foil layer exists in the lower layer of the polyethylene or polypropylene film layer on the surface layer, making it difficult for rainwater or the like to enter the adhesive layer, making it more durable than when the aluminum foil or glass cloth is on the outside. Excellent in weatherability and weather resistance. In addition, in the temporary construction of about 2 years or less, the surface of the polyethylene or polypropylene film layer is deteriorated and does not peel off or tear, so that it is not necessary to use a weather-resistant exterior material. Time can be shortened. Since a molded heat insulating material is used, a heat insulating effect is obtained and construction is easy.

  The temporary piping according to the present invention includes a fixing member, an adhesive tape, and a cover tape, and the molded heat insulating material is made of foamed resin, and is composed of two structural members each having a shape in which a cylindrical body is divided in half. The component members are in close contact with the outer surface of the pipe main body, the fixing member fixes the molded heat insulating material to the pipe main body, and the pipe surface cover is composed of a plurality, each in the length direction of the pipe main body. The adhesive tape has moisture resistance, and has side edge portions and end edge portions at both ends that are attached to the entire outer surface of the molded heat insulating material continuously in series and along the pipe body length direction. The cover tape is affixed thereon so as to cover the side edge of the pipe surface cover, and the cover tape is made of a tape having the same configuration as the pipe surface cover, and is affixed thereon so as to cover the edge of the pipe surface cover. It is preferable that

  In the method for constructing a temporary pipe according to the present invention, the molded heat insulating material is made of foamed resin, and is composed of two constituent members having a shape obtained by dividing a cylindrical body in half, and each constituent member is an outer surface of the pipe body. Covering the outer surface of the pipe body, fixing the molded heat insulating material covering the outer surface of the pipe main body to the pipe main body with a fixing member, and fixing the molded heat insulating material, a plurality of the pipe surface covers The outer surface of the molded heat insulating material is bonded to the entire outer surface of the molded heat insulating material continuously in series in the length direction of the pipe main body so as to have side edge portions and edge portions at both ends along the length direction of the pipe main body. The pipe covering the outer edge of the molded heat insulating material by covering the side edge by applying a moisture-proof adhesive tape on the side edge of the pipe surface cover that covers the outer surface of the molded heat insulating material. The pipe surface cover is placed on the edge of the surface cover. It is preferred to paste the cover tape having a tape of the same configuration as the over cover the edge portion.

  In the configuration having the fixing member, the adhesive tape, and the cover tape, the moisture-proof adhesive tape is applied to the side surface of the piping surface cover that is attached to the entire outer surface of the molded heat insulating material. Therefore, it is possible to prevent moisture such as rainwater from entering from the side edge of the pipe surface cover. For this reason, the pipe surface cover can be made difficult to peel off, and the durability and weather resistance can be improved.

  Because the cover tape consisting of tape with the same structure as the piping surface cover is applied to cover the end edges of both ends of the piping surface cover that are continuously attached in series in the length direction of the piping body. The adhesive layer of the cover tape sticks to the polyethylene or polypropylene film layer of the piping surface cover and is difficult to peel off. For this reason, the airtightness in the edge part of a piping surface cover can be ensured, and durability and a weather resistance can be improved.

  The temporary piping according to the present invention has a fixing member and a cover tape, the molded heat insulating material is made of foamed resin, and is composed of two structural members each having a shape obtained by dividing the cylindrical body in half. The member is in close contact with the outer surface of the pipe main body, the fixing member fixes the molded heat insulating material to the pipe main body, the pipe surface cover is composed of a plurality, and each is continuous in series in the length direction of the pipe main body. Then, the tape has the same configuration as that of the pipe surface cover, and has a side edge portion and an end edge portion at both ends that are attached to the entire outer surface of the molded heat insulating material along the length direction of the pipe body. It may consist of, and may be affixed on it so that the side edge part and end edge part of the said piping surface cover may be covered.

  In the method for constructing a temporary pipe according to the present invention, the molded heat insulating material is made of foamed resin, and is composed of two constituent members having a shape obtained by dividing a cylindrical body in half, and each constituent member is an outer surface of the pipe body. Covering the outer surface of the pipe body, fixing the molded heat insulating material covering the outer surface of the pipe main body to the pipe main body with a fixing member, and fixing the molded heat insulating material, a plurality of the pipe surface covers The outer surface of the molded heat insulating material is bonded to the entire outer surface of the molded heat insulating material continuously in series in the length direction of the pipe main body so as to have side edge portions and edge portions at both ends along the length direction of the pipe main body. A cover tape made of a tape having the same configuration as that of the pipe surface cover is pasted on the side edge and end edge of the pipe surface cover that covers the outer surface of the molded heat insulating material. And may cover the edge

  In the configuration having the fixing member and the cover tape, a cover tape made of a tape having the same configuration as the piping surface cover is attached to the side surface of the piping surface cover continuously attached in series in the length direction of the piping main body. Since it is affixed on it so that an edge part may be covered, the adhesive layer of a cover tape adheres to the polyethylene-made or polypropylene-made film layer of a piping surface cover, and does not peel easily. For this reason, the airtightness in the edge part of a piping surface cover can be ensured, and durability and a weather resistance can be improved.

  According to the present invention, it is excellent in durability and weather resistance, can reduce costs and work time, and is difficult to be peeled off when laminated and pasted. Temporary piping and temporary piping A construction method can be provided.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 thru | or FIG. 3 has shown the construction method of the piping surface cover, temporary piping, and temporary piping of embodiment of this invention.

The temporary piping of the embodiment of the present invention is constructed by the construction method of the temporary piping of the embodiment of the present invention.
As shown in FIGS. 1 to 3, the temporary pipe includes a pipe body 10, a molded heat insulating material 11, a fixing member 12, a pipe surface cover 13, an adhesive tape 14, and a cover tape 15.

  As shown in FIG. 2, the molded heat insulating material 11 is made of a polystyrene foam resin, and is composed of two structural members 21a and 21b having a shape obtained by dividing a cylindrical body in half in the vertical direction. The molded heat insulating material 11 is molded into a shape that covers the outer surface 10 a of the pipe body 10 with the inner surface 11 a in close contact with the outer surface 10 a of the pipe body 10. The molded heat insulating material 11 can be mounted on the constituent members 21 a and 21 b from the side of the pipe body 10. Note that the molded heat insulating material 11 may be made of a commercially available molded product.

  As shown in FIG. 2B, the fixing member 12 is made of a galvanized iron wire. The fixing member 12 has a length that can be tied to the outer surface 11b of the molded heat insulating material 11 covering the outer surface 10a of the pipe body 10 along the circumferential direction. Note that the fixing member 12 is not limited to a galvanized iron wire, and may be made of a wire material of another metal material, an adhesive tape, or the like.

  As shown in FIG. 1, the pipe surface cover 13 is rectangular and has a width longer than the outer diameter of the molded heat insulating material 11. The pipe surface cover 13 includes a composite sheet 22 and an adhesive layer 23. The composite sheet 22 is formed by laminating a film layer 24, a polyethylene woven fabric 25, and an aluminum foil layer 26. The composite sheet 22 is formed by integrating a polyethylene woven fabric 25 between a polyethylene film layer 24 and an aluminum foil layer 26.

The pressure-sensitive adhesive layer 23 is provided in layers on the surface 26 a of the aluminum foil layer 26 of the composite sheet 22. The pressure-sensitive adhesive layer 23 can be attached to the composite sheet 22 on the aluminum foil layer 26 side. A release paper 27 is attached to the surface 23a so that the adhesive layer 23 is not attached when not used.
The adhesive tape 14 is made of polyethylene and has moisture resistance.
The cover tape 15 is made of a tape having the same configuration as the pipe surface cover 13.

  In the construction method of the temporary piping according to the present invention, first, the constituent members 21a and 21b of the molded heat insulating material 11 are mounted from the side of the piping main body 10 as shown in FIG. At this time, the inner surface 11 a of the molded heat insulating material 11 is brought into close contact with the outer surface 10 a of the pipe body 10 to cover the outer surface 10 a of the pipe body 10. Thus, since the shaping | molding heat retention material 11 is utilized, the heat retention effect is acquired and construction is easy. Next, as shown in FIG. 2B, the fixing member 12 is tied to the outer surface 11 b of the molded heat insulating material 11 that covers the outer surface 10 a of the pipe main body 10, and the molded heat insulating material 11 is fixed to the pipe main body 10.

  After fixing the molded heat insulating material 11 with the fixing member 12, as shown in FIG. 3A, a plurality of pipe surface covers 13 are attached to the entire outer surface 11 b of the molded heat insulating material 11 with the adhesive layer 23 to form the molded heat retaining material. The outer surface 11b of 11 and the fixing member 12 are covered. At this time, each piping surface cover 13 is affixed so that it may have the side edge part 13a along the length direction of the piping main body 10, and the edge part 13b of both ends. That is, the length direction of the pipe surface cover 13 is aligned with the length direction of the pipe body 10 and is attached so as to be wound around the outer surface 11 b of the molded heat insulating material 11. Since the width of the pipe surface cover 13 is longer than the outer diameter of the molded heat insulating material 11, a pair of side edges along the length direction of the pipe surface cover 13 can be overlapped and pasted together. Thereby, the pressure-sensitive adhesive layer 23 of the pipe surface cover 13 is stuck to the polyethylene film layer 24 and hardly peels off. A plurality of pipe surface covers 13 are pasted in series in the length direction of the pipe body 10.

  As shown in FIG. 3A, after adhesive tape 14 is applied and temporarily fixed to several places on the side edge portion 13a of the pipe surface cover 13 covering the outer surface 11b of the molded heat insulating material 11, FIG. As shown to (b), the adhesive tape 14 is affixed on the side edge part 13a and temporary fix | cover, and the side edge part 13a is covered. Accordingly, moisture such as rainwater can be prevented from entering from the side edge portion 13 a of the pipe surface cover 13 with the moisture-proof adhesive tape 14. For this reason, the piping surface cover 13 can be made difficult to peel off, and durability and weather resistance can be improved.

  Next, as shown in FIG. 3B, a cover tape 15 is attached on the edge portion 13 b of the pipe surface cover 13 that covers the outer surface 11 b of the molded heat insulating material 11 to cover the edge portion 13 b. At this time, the adhesive layer of the cover tape 15 made of the tape having the same configuration as the pipe surface cover 13 is stuck to the polyethylene film layer 24 of the pipe surface cover 13 and is not easily peeled off. For this reason, the airtightness in the edge part 13b of the piping surface cover 13 can be ensured, and durability and a weather resistance can be improved.

Furthermore, as shown in FIG.3 (b), the adhesive tape 14 is affixed along the circumference | surroundings near the center of the length direction of each piping surface cover 13 for reinforcement.
In addition, the bent part of the pipe is the one that has been heat-insulated by cutting and pasting the pipe surface cover 13 according to the shape on the surface of the elbow heat insulating material having the same structure as the molded heat insulating material at the factory in advance. I am using it.

  In the construction method of the temporary pipe and the temporary pipe according to the embodiment of the present invention, the pipe surface cover 13 is attached to the entire outer surface 11b of the molded heat insulating material 11 so as to cover the outer surface 11b of the molded heat insulating material 11, The polyethylene film layer 24 is on the outside, and the aluminum foil layer 26 is present below the polyethylene film layer 24, making it difficult for rainwater or the like to enter the pressure-sensitive adhesive layer 23. For this reason, compared with the case where an aluminum foil and glass cloth become an outer side, it is excellent in durability and a weather resistance. In addition, the pipe surface cover 13 is not easily peeled off against temperature changes caused by cold water, hot water, steam, etc. passing through the inside of the pipe body 10 and expansion and contraction of the pipe body 10, and is excellent in durability.

  In addition, for example, when the pipe body 10 for cold / hot water is temporarily installed outdoors only in the roof in the switching work, the surface 24a of the polyethylene film layer 24 is deteriorated in temporary installation within about two years. Does not peel off or tear. For this reason, it is not necessary to use the weather-resistant exterior material conventionally required. For this reason, it is not necessary to finish the exterior material, which is conventionally time-consuming, and the working time can be shortened. Further, since the exterior material is not required and the types of materials are reduced, the cost of these materials and the trouble of arranging can be reduced, and the temporary storage space for the materials at the time of operation can be reduced.

  In addition, the structure which uses the conventional exterior material is a structure of this installation, and there existed a problem that it was excessive in temporary installation within about two years. However, according to the temporary piping and the temporary piping construction method according to the embodiment of the present invention, the exterior material is not necessary, and this problem can be solved.

It is (a) top view and (b) sectional view showing the piping surface cover of an embodiment of the invention. (A) A perspective view showing a mounting state of a molded heat insulating material to the pipe, and (b) a perspective view showing a mounting state of the molded heat insulating material and the fixing member in the construction method of the temporary piping and the temporary piping according to the embodiment of the present invention. FIG. BRIEF DESCRIPTION OF THE DRAWINGS (a) The perspective view which shows the sticking state of the piping surface cover of the construction method of temporary piping and temporary piping of embodiment of this invention, (b) It is a perspective view which shows a completion state.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Piping main body 11 Molding heat insulating material 12 Fixing member 13 Piping surface cover 14 Adhesive tape 15 Cover tape 21a, 21b Constituent member 22 Composite sheet 23 Adhesive layer 24 Film layer 25 Polyethylene woven fabric 26 Aluminum foil layer 27 Release paper

Claims (7)

Having a composite sheet and an adhesive layer,
The composite sheet is formed by integrating a polyethylene fiber woven fabric or nonwoven fabric sandwiched between a polyethylene or polypropylene film layer and an aluminum foil layer,
The pressure-sensitive adhesive layer is provided on the surface of the aluminum foil layer,
Characteristic piping surface cover. A pipe body, a molded heat insulating material, and a pipe surface cover according to claim 1;
The molded heat insulating material is provided so as to cover the outer surface of the pipe body,
The piping surface cover is affixed to the entire outer surface of the molded heat insulating material with the adhesive layer so as to cover the outer surface of the molded heat insulating material.
Characteristic temporary piping. A fixing member, an adhesive tape and a cover tape;
The molded heat insulating material is made of foamed resin, and is composed of two structural members having a shape obtained by dividing the cylindrical body in half, and each structural member is in close contact with the outer surface of the pipe body,
The fixing member fixes the molded heat insulating material to the pipe body,
The pipe surface cover is composed of a plurality of pieces, each being continuously connected in series in the length direction of the pipe main body and pasted on the entire outer surface of the heat insulating material, and side edges and end edges of both ends along the pipe main body length direction. And
The pressure-sensitive adhesive tape has moisture resistance, and is affixed thereon so as to cover a side edge of the pipe surface cover,
The cover tape is composed of a tape having the same configuration as the pipe surface cover, and is affixed thereon so as to cover an edge of the pipe surface cover.
The temporary piping according to claim 2, characterized in that: A fixing member and a cover tape;
The molded heat insulating material is made of foamed resin, and is composed of two structural members having a shape obtained by dividing the cylindrical body in half, and each structural member is in close contact with the outer surface of the pipe body,
The fixing member fixes the molded heat insulating material to the pipe body,
The pipe surface cover is composed of a plurality of pieces, each being continuously connected in series in the length direction of the pipe main body and pasted on the entire outer surface of the heat insulating material, and side edges and end edges of both ends along the pipe main body length direction. And
The cover tape is composed of a tape having the same configuration as the pipe surface cover, and is affixed thereon so as to cover the side edge and the edge of the pipe surface cover.
The temporary piping according to claim 2, characterized in that: A molded heat insulating material is provided to cover the outer surface of the pipe body,
Affixing the pipe surface cover according to claim 1 on the entire outer surface of the molded heat insulating material so as to cover the outer surface of the molded heat insulating material,
A method for constructing a temporary pipe as a feature. The molded heat insulating material is made of foamed resin, and is composed of two structural members having a shape in which the cylinder is divided in half in the longitudinal direction, and each structural member is brought into close contact with the outer surface of the pipe body to cover the outer surface of the pipe body,
Fixing the molded heat insulating material covering the outer surface of the pipe body to the pipe body by a fixing member;
After fixing the molded heat retaining material, the plurality of the pipe surface covers are continuously formed in series in the pipe body length direction so as to have side edge portions and end edges at both ends along the pipe body length direction. Affixed to the entire outer surface of the heat insulating material to cover the outer surface of the molded heat insulating material,
Applying a moisture-proof adhesive tape on the side edge of the pipe surface cover that covers the outer surface of the molded heat insulating material to cover the side edge,
Attaching a cover tape made of tape having the same configuration as the pipe surface cover to cover the end edge part on the edge part of the pipe surface cover covering the outer surface of the molded heat insulating material,
The construction method of the temporary piping according to claim 5, characterized in that: The molded heat insulating material is made of foamed resin, and is composed of two structural members having a shape in which the cylinder is divided in half in the longitudinal direction, and each structural member is brought into close contact with the outer surface of the pipe body to cover the outer surface of the pipe body,
Fixing the molded heat insulating material covering the outer surface of the pipe body to the pipe body by a fixing member;
After fixing the molded heat retaining material, the plurality of the pipe surface covers are continuously formed in series in the pipe body length direction so as to have side edge portions and end edges at both ends along the pipe body length direction. Affixed to the entire outer surface of the heat insulating material to cover the outer surface of the molded heat insulating material,
A cover tape made of a tape having the same configuration as the pipe surface cover is pasted on the side edge and end edge of the pipe surface cover that covers the outer surface of the molded heat insulating material, and the side edge and the end. Covering the edges,
The construction method of the temporary piping according to claim 5, characterized in that:

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