JP2004225730A - Heat insulation cover device for pipe - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To make it possible to provide a heat insulation cover device for a pipe in accordance with a piping state of the pipe at a piping construction site without specially requiring a worker specialized in sheet metal work. <P>SOLUTION: A plurality of heat insulation members 1 disposed to adjoin each other along a pipe P, and a cover layer 5 of metal to cover outer surfaces of the heat insulation members disposed to adjoin each other are provided in this heat insulation cover device for a pipe. The heat insulation member formed in curvature along the form of the pipe is provided with a heat insulation cover member 3 with a metal exterior sheet 2 covering the outer surface of the insulation member and molded in curvature along the outer surface of the heat insulation member to be integrated with it, and a metal cover sheet 4 capable of covering a gap between outer plate members of the heat insulation cover members disposed to adjoin each other. Overlap parts 13 are formed in the cover plate members adjoining each other to overlap each other to achieve waterproofing effect. As a plurality of the heat insulation cover members are disposed along an outer surface of the pipe, a gap between the outer plate members adjoining each other is covered with the cover plate member to form the cover layer. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a pipe provided with a plurality of heat insulating members arranged adjacent to each other along the outer surface of the pipe, and a metal coating layer covering the outer surfaces of the plurality of heat insulating members arranged adjacent to each other. The present invention relates to a heat insulating cover device.
[0002]
[Prior art]
In the pipe heat insulating cover device, a metal coating layer for coating the outer surface of the heat insulating member is provided by sheet metal processing of a thin metal plate (for example, see Patent Document 1). Conventionally, if you want to install a heat insulation cover device, a worker of a job specialized in heat insulation work such as heat insulation work places a plurality of heat insulation members side by side along the outer surface of the pipe at the piping site and attaches it to the pipe After that, a worker of a job specializing in sheet metal working such as sheet metal work, at the piping site, by sheet metal processing of a thin metal sheet, over the plurality of heat insulating members arranged side by side and attached to the outer surface thereof. A metal coating layer for coating is provided.
[0003]
[Patent Document 1]
JP 2001-324086 A
[Problems to be solved by the invention]
For this reason, if you want to install a pipe insulation cover device according to the pipe condition at the pipe site, two types of workers, such as heat insulation and sheet metal work, are required.Especially, sheet metal processing uses special tools. In recent years, it has become difficult to secure skilled workers, and there is a possibility that construction work cannot be performed efficiently at piping sites.
The present invention has been made in view of the above-mentioned circumstances, and provides a pipe heat insulating cover device according to the pipe state of a pipe at a pipe site without specially requiring a worker of a type of job specializing in sheet metal processing. The purpose is to be able to.
[0005]
[Means for Solving the Problems]
A feature of the invention according to claim 1 is that a plurality of heat insulating members arranged adjacent to each other along the outer surface of the pipe and a metal coating covering the outer surface over the plurality of heat insulating members arranged adjacent to each other. A heat insulating member formed into a curved shape along the outer surface shape of the pipe, wherein a metal outer plate material covering the outer surface is formed along the outer surface shape of the heat insulating member. A heat-insulating cover member molded into a curved shape and attached integrally, and a metal capable of covering a space between adjacent exterior plate materials of the plurality of heat-insulating cover members arranged side by side along the outer surface of the pipe. And a covering portion that overlaps each of the adjacent exterior plate materials in a waterproof manner is formed on the covering plate material, and a plurality of the heat insulating cover members are provided on the outer surface of the pipe. While arranged side by side Te Align, covered between each other adjacent ones of the outer plate in said cover plate, in that is provided to allow formation of the coating layer.
[0006]
[Action and effect]
A heat insulating cover member in which a metal heat insulating member formed into a curved shape along the outer surface shape of a pipe and a metal outer plate material covering the outer surface are formed into a curved shape along the outer surface shape of the heat insulating member and are integrally attached. By arranging a plurality of the heat insulating members adjacent to each other along the outer surface of the pipe, a plurality of heat insulating members can be arranged adjacent to each other along the outer surface of the pipe, and the heat insulating members are arranged along the outer surface shape of the heat insulating member. The outer surface of each heat insulating member can be covered with a metal exterior plate material formed into a curved shape and attached integrally.
Then, between adjacent exterior plate materials of the plurality of heat insulating cover members arranged adjacent to each other along the outer surface of the pipe, a metal coating having a polymerized portion that overlaps each of the adjacent exterior plate materials in a waterproof manner. By covering with a board | plate material, the metal covering layer which covers the outer surface over the several heat insulation members arrange | positioned adjacently can be formed with an exterior board material and a cover board material.
Therefore, a worker of a job specializing in heat insulation work such as heat insulation work, a plurality of heat insulation cover members, instead of a plurality of heat insulation members that were conventionally arranged side by side along the outer surface of the pipe at the piping site. By arranging side by side along the outer surface of the pipe at the plumbing site, it is possible to arrange a plurality of heat insulating members side by side along the outer surface of the pipe, and with a metal exterior plate material integrally attached to these heat insulating members. The outer surface of each heat-insulating member can also be covered, and between adjacent cladding plates of a plurality of heat-insulating cover members, a metal-coated cladding plate can be covered so that the overlapped portion overlaps each of the adjacent cladding plates in a waterproof manner. Since it is possible, it is possible to provide a pipe insulation cover device according to the pipe state of the pipe at the piping site without particularly requiring a worker of a job specialized in sheet metal processing. .
[0007]
The feature configuration of the invention according to claim 2 is that between the moisture-proof layers, a moisture-proof layer is formed on the outer surface of the heat-insulating member and between the exterior plate material, and the plurality of heat-insulating cover members are adjacent when arranged. The point is that a moisture-proof tape for sealing over is provided.
[0008]
[Action and effect]
On the outer surface of the heat-insulating member, a moisture-proof layer is formed between the heat-insulating member and the exterior plate material, and when a plurality of heat-insulating cover members are arranged, a moisture-proof tape that seals between adjacent moisture-proof layers is provided. The deterioration of the heat insulation performance due to the deterioration can be suppressed.
[0009]
BEST MODE FOR CARRYING OUT THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
[First Embodiment]
FIG. 1 shows a pipe heat insulating cover device A provided at a pipe site on a substantially horizontal cylindrical pipe P through which a low-temperature fluid flows, and a metal exterior plate 2 covering an outer surface of a heat insulating member 1. A plurality of heat-insulating cover members 3 integrally attached are arranged side by side along the outer surface of the pipe P in the circumferential direction of the pipe and in the longitudinal direction of the pipe. A metal covering plate 4 (4a, 4b) for covering the space is provided, a plurality of heat insulating members 1 are arranged side by side along the outer surface of the pipe P, and the exterior plate 2 and the covering plate 4 A metal coating layer 5 is provided to cover the outer surfaces of the plurality of heat insulating members 1 arranged adjacent to each other.
[0010]
As shown in FIGS. 2 and 3, the heat-insulating cover member 3 is a heat-insulating member 1 made of a half-cylindrical hard urethane foam having a substantially constant length and formed into a curved shape along the outer shape of the pipe P. An exterior plate member 2 formed by coating a coated galvanized steel sheet having a thickness of about 0.4 mm into a curved shape conforming to the outer surface shape of the heat insulating member 1 with a moisture-proof film 6 constituting a moisture-proof layer interposed therebetween on the outer peripheral surface. Is fixed.
[0011]
The moisture-proof film 6 is adhered over substantially the entire outer peripheral surface of the heat-insulating member 1 so that the exterior plate 2 can form a gap 7 with the moisture-proof film 6 at both ends in the pipe circumferential direction. The moisture-proof film 6 is partially adhered along a substantially central position in the circumferential direction of the pipe with a flexible adhesive material 8 such as a rubber-based adhesive or a double-sided adhesive tape. A heat insulating cover member 3 having a moisture-proof layer 6 formed thereon is formed so that the end of the exterior plate 2 in the pipe circumferential direction can be displaced relative to the heat insulating member 1 in the pipe radial direction.
[0012]
FIG. 4 shows a method of manufacturing the heat-insulating cover member 3 using an existing heat-insulating member molding die 9, and as shown in FIGS. The exterior material 2 is set on the female mold 9a provided with the concave surface 10 for forming the adhesive material 8, and the adhesive material 8 is applied along the bottom of the inner surface of the exterior material 2 by applying an adhesive or applying a double-sided adhesive tape. The moisture-proof film 6 is set on the inner surface side of the exterior plate 2 over substantially the entire surface of the concave surface 10, and the exterior plate 2 and the moisture-proof film 6 are bonded.
[0013]
Next, as shown in FIGS. 4 (d) to (g), the urethane stock solution 11 is injected into the inner surface side of the moisture-proof film 6, the male mold 9b is set, and the urethane stock solution 11 is foamed to form a half-split cylindrical shape. After being integrated with the rigid urethane foam (heat insulating material) 1, the moisture-proof film 6 and the exterior plate material 2, the mold is removed and the heat insulating cover member 3 having substantially constant dimensions is manufactured.
[0014]
FIGS. 5 and 6 show a longitudinal joint covering plate 4a (4) capable of covering between the covering plates 2 of the heat insulating cover member 3 adjacent in the pipe circumferential direction. Along the other end in the width direction of the steel strip (galvanized steel sheet), the steel strip (galvanized steel sheet) is inserted into the gap 7 of the lower exterior plate 2 along the pipe circumferential end. An engaging portion 12 to be fitted and engaged so as to overlap with the end in the circumferential direction of the pipe is bent and formed in series, and overlapping portions 13 are provided on both right and left sides of each of the adjacent exterior plate materials 2 so as to be waterproof. The cover member 2 is formed to have substantially the same length as the length in the pipe longitudinal direction.
[0015]
FIGS. 7 and 8 show a circumferential joint covering plate 4b capable of covering between the exterior plate members 2 of the heat insulating cover member 3 adjacent in the longitudinal direction of the pipe, and an intermediate portion in the width direction of a steel strip (galvanized steel sheet). The two bead 14 are formed and wound into a ring shape along two places, and both sides in the width direction are overlapped with each of the adjacent exterior plate materials 2 in a waterproof manner. It is formed in the overlapping section 13.
[0016]
Next, a description will be given of a construction method for installing the pipe heat insulating cover device A on a pipe P which is piped substantially horizontally at a piping site.
As shown in FIGS. 9 (a) and 9 (b), a plurality of heat insulating cover members 3 are assembled on the outer peripheral surface of the pipe P so as to be adjacent to each other in the longitudinal direction of the pipe and vertically adjacent to each other in the circumferential direction of the pipe. Then, the adjacent heat insulating cover members 3, that is, the pipe longitudinal end faces and the pipe circumferential end faces of the heat insulating member 1 are bonded to each other by an adhesive or urethane in-situ foam injection.
[0017]
Next, as shown in FIGS. 10A and 10B, a moisture-proof tape 17 is adhered along a longitudinal joint 15 along the pipe longitudinal direction and a circumferential joint 16 along the pipe peripheral direction to form a plurality of heat insulating tapes. When the cover members 3 are arranged, the space between the adjacent moisture-proof layers (moisture-proof films) 6 is sealed, and as shown in FIGS. 6 and 10 (a), the exterior plate members 2 of the heat-insulating cover members 3 adjacent in the pipe circumferential direction. Is covered with the longitudinal joint covering plate material 4a.
[0018]
Next, as shown in FIGS. 11 (a) and 11 (b), the space between the exterior plate materials 2 of the heat insulating cover member 3 adjacent in the pipe longitudinal direction is changed to the longitudinal joint coating plate material 4a by the circumferential joint coating plate 4b. As shown in FIG. 8, as shown in FIG. 8, the side edges of the circumferential joint covering plate 4 b are sealed with the sealant 18, and the binding members 19 tied to the left and right sides of the circumferential joint covering plate 4 b. To fix it to the heat insulating cover member 3.
[0019]
[Second embodiment]
FIG. 12 shows a pipe heat insulating cover device A provided at a pipe site on a pipe P vertically piped in which a low-temperature fluid flows, and in this case, the circumferential joint covering plate member 4 b is fixed with a binding member 19. Even so, since the longitudinal joint covering plate 4a and the circumferential joint covering plate 4b may fall off the heat insulating cover member 3, the longitudinal joint covering plate 4a and the circumferential joint covering plate 4b are blind-riveted. It is fixed to the exterior plate 2 of the heat insulating cover member 3 by rivets 20 or the like.
[0020]
As shown in FIG. 14, the exterior plate 2 provided in the pipe heat insulating cover device A is fitted by inserting the upper end of the circumferential joint covering plate 4 b into the lower end of the exterior plate 2 opposed vertically. An engaging portion 21 to be engaged and locked is formed by bending in series, and an overlapping portion 13 is provided on each of the adjacent exterior plate members 2 so as to be waterproof.
[0021]
Then, as shown in FIG. 13, the space between the exterior plate materials 2 of the heat insulating cover member 3 adjacent in the pipe circumferential direction is covered with the longitudinal joint covering plate material 4 a, and the locking portion 12 of the longitudinal joint covering plate material 4 a is formed. Then, the outer peripheral plate material 2 fitted so as to overlap with the locking portion 12 is fixed with rivets 20 arranged at appropriate intervals in the pipe circumferential end, and then, as shown in FIG. A belt-shaped circumferential joint between the exterior plate members 2 of the heat insulation cover member 3 adjacent to each other so that the lower end portion overlaps the upper side of the exterior plate member 2 and the upper end portion enters the engaging portion 21 of the exterior plate member 2. The covering plate 4b is coated so as to overlap the longitudinal joint covering plate 4a, and the locking portions 21 of the exterior plate 2 and the circumferential joint covering plate 4b are fixed by rivets 20 arranged at appropriate intervals.
Other configurations are the same as those of the first embodiment.
[0022]
[Third embodiment]
As shown in the second embodiment, when fixing the longitudinal joint covering plate 4a and the circumferential joint covering plate 4b to the exterior plate 2 of the heat insulating cover member 3 with the blind rivet 20, the moisture-proof film 6 and the moisture-proof Since the tape 17 and the like may be damaged, as shown in FIGS. 15 and 16, the metal contact plate 22 is previously placed on the moisture-proof film 6 or the moisture-proof tape 17 at the place where the rivet is to be set by using a double-sided adhesive tape or an adhesive. To prevent the moisture-proof film 6 and the moisture-proof tape 17 from being damaged.
Other configurations are the same as those of the second embodiment.
[0023]
[Other embodiments]
1. In the pipe heat insulating cover device according to the present invention, the cover plate may be fixed to the outer plate of the heat insulating cover member with rivets, even when the cover plate is provided on a pipe that is substantially horizontally piped.
2. The pipe heat insulating cover device according to the present invention may be configured by appropriately combining heat insulating cover members of various lengths.
3. The pipe heat insulating cover device according to the present invention may be configured by appropriately combining three or more heat insulating cover members divided in the pipe circumferential direction.
4. The pipe heat insulating cover device according to the present invention may be provided to insulate a joint pipe such as an elbow.
5. The pipe insulation cover device according to the present invention may be provided to insulate a pipe through which a high-temperature fluid flows.
6. In the pipe heat insulating cover device according to the present invention, in the manufacturing process shown in FIG. 4, the urethane stock solution 11 is injected by setting only the moisture-proof film 6 without setting the exterior plate material 2 in the mold 9 and the moisture-proof film 6 After the urethane stock solution 11 is foamed and removed from the mold so that the urethane stock solution 11 is adhered, the exterior plate 2 may be adhered onto the moisture-proof film 6 with an adhesive or a double-sided adhesive tape to be integrated.
7. Although the first embodiment shows the pipe heat insulating cover device A provided on the pipe P which is piped substantially horizontally, the pipe heat insulating cover device A may be provided on the pipe P which is piped substantially vertically. .
[Brief description of the drawings]
FIG. 1 is a partially cutaway perspective view of a pipe heat insulating cover device. FIG. 2 is a perspective view of a main part. FIG. 3 is an end view of a main part. FIG. 4 is a schematic view showing a manufacturing method. Perspective view [Fig. 6] Cross-sectional view of main part [Fig. 7] Cross-sectional view of main part [Fig. 8] Perspective view of main part [Fig. 9] Illustration of construction method [Fig. 10] Illustration of construction method [Fig. FIG. 12 is a partially cutaway perspective view of a pipe heat insulating cover device showing a second embodiment. FIG. 13 is a sectional view of a main part showing a second embodiment. FIG. 14 is a second embodiment. FIG. 15 is a cross-sectional view of a main part showing a third embodiment. FIG. 16 is a cross-sectional view of a main part showing a third embodiment.
REFERENCE SIGNS LIST 1 heat insulating member 2 exterior plate material 3 heat insulating cover member 4 coated plate material 5 coating layer 6 moisture-proof layer 13 overlapping section 17 moisture-proof tape P pipe

Claims (2)

A pipe heat insulating cover device provided with a plurality of heat insulating members arranged adjacent to each other along the outer surface of a pipe, and a metal coating layer covering the outer surfaces of the plurality of heat insulating members arranged adjacent to each other. So,
A heat insulating member formed into a curved shape along the outer surface shape of the pipe, and a metal exterior plate material covering the outer surface formed into a curved shape along the outer surface shape of the heat insulating member and integrally attached thereto. A cover member,
A metal covering plate member capable of covering between the adjacent outer plate members of the plurality of heat insulating cover members arranged side by side along the outer surface of the pipe,
A polymerized portion that overlaps each of the adjacent exterior plate materials in a waterproof manner is formed on the covering plate material,
In a state where a plurality of the heat insulating cover members are arranged side by side along the outer surface of the pipe, a space between adjacent ones of the exterior plate materials is covered with the cover plate material, and the cover layer is provided so as to be formed. There is a pipe insulation cover device. A moisture-proof tape for forming a moisture-proof layer on the outer surface of the heat-insulating member and between the exterior plate material, and providing a seal between the moisture-proof layers adjacent to the plurality of heat-insulating cover members when the plurality of heat-insulating cover members are arranged. Item 2. A pipe heat insulating cover device according to Item 1.

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