KR20110123919A

KR20110123919A - Moistureproof pipe cover sheet

Info

Publication number: KR20110123919A
Application number: KR1020100043407A
Authority: KR
Inventors: 이광용
Original assignee: 홍성산업 주식회사
Priority date: 2010-05-10
Filing date: 2010-05-10
Publication date: 2011-11-16

Abstract

The present invention relates to a moisture-proof pipe cover that can prevent moisture from penetrating into the pipe insulation to insulate the pipe from the outside.
Moisture-proof pipe cover according to the present invention, the pipe cover 30 is provided so as to surround the outside of the pipe heat insulating material 20 to insulate the pipe 10, the metal layer 31 made of a metal sheet (sheet) and And a waterproof resin layer 33 disposed below the metal layer 31 and having a synthetic resin in the form of a film, and made of polyethylene or ethylene polymer, between the metal layer 31 and the waterproof resin layer 33. The first ethylene resin layer 34 provided in the form, and the second ethylene resin layer 35 made of polyethylene or ethylene polymer, and provided in the form of a film below the waterproof resin layer 33 It features.

Description

Moisture-proof pipe cover {MOISTUREPROOF PIPE COVER SHEET}

The present invention relates to a pipe cover surrounding the outside of the pipe, and more particularly to a moisture-proof pipe cover that can prevent moisture from penetrating into the pipe insulation to insulate the pipe from the outside.

In industrial facilities such as large petrochemical plants and gas plants, numerous pipes are used to transfer various fluids.

The pipe includes a pipe insulation that surrounds the pipe in a double layer on the outside of the pipe to prevent condensation due to a temperature difference between the fluid flowing inside the pipe and the atmosphere outside the pipe, and a pipe that surrounds the outermost portion of the pipe insulation and prevents water from entering. A cover is provided. That is, as shown in Figures 1 and 2, the inner and outer pipe 10 is insulated by the pipe insulation 20 provided in a double layer and the insulation is directly in the air or moisture through the pipe cover 30 Avoid exposure.

At this time, the pipe insulation is used to insulate the inside and the outside of the pipe by using polyurethane, glass fiber, rock wool fiber, eco-gel, parade, etc., the pipe insulation 20 is structurally porous and strong absorbent insulation The pipe cover 30 is provided to prevent water or moisture from penetrating into it.

Here, the pipe cover 30 mainly uses processed kraft paper, for example, to prevent the penetration of moisture into the insulation using kraft paper impregnated with asphalt or kraft paper coated with polyethylene.

However, according to the conventional pipe cover as described above, the kraft paper constituting the pipe cover is not strong, the intended purpose, that is, the processed kraft paper is degraded weather resistance of the kraft paper when exposed to high temperature or high humidity environment, There is a problem that the phenomenon that the impregnated asphalt at high temperature or the coated polyethylene is peeled often occurs.

The present invention has been invented to solve the above problems, the object of the present invention is to provide a waterproof pipe cover having a waterproof function to prevent condensation on the surface of the pipe by the temperature difference, and to prevent moisture from penetrating into the pipe insulation. have.

In order to achieve the above object, a waterproof pipe cover according to the present invention includes a metal layer made of a sheet of metal and a pipe cover provided to surround an outer side of a pipe heat insulating material for insulating a pipe. The first ethylene resin layer disposed below and made of a waterproof resin layer in which a synthetic resin is provided in the form of a film, polyethylene or ethylene polymer, and provided in the form of a film between the metal layer and the waterproof resin layer, and polyethylene or ethylene polymer. And a second ethylene resin layer provided in a film form below the waterproof resin layer.

Here, it is preferable that the waterproof resin layer is made of a Surlyn resin.

Outside of the metal layer may be further provided with a surface coating layer coated with fluorine or chromate to prevent corrosion of the metal layer.

In addition, the first ethylene resin layer, the waterproof resin layer and the second ethylene resin layer are sequentially arranged in the lower portion of the metal layer, characterized in that the adhesive is formed at 100 ~ 170 ℃.

According to the pipe cover according to the present invention having the configuration as described above, by preventing the penetration of moisture into the pipe insulation provided on the outside of the pipe to insulate the inside and the outside of the pipe, it is possible to continuously maintain the heat insulating performance of the pipe insulation Make sure

In particular, the pipe cover performs a function of preventing the penetration of moisture into the pipe insulation in the field by the metal layer and the waterproof resin layer, improve durability, and protect the appearance.

In addition, the ethylene resin layers are formed on the upper and lower portions of the waterproof resin layer, respectively, so that the waterproof resin layer is firmly adhered to the metal layer and the pipe insulation, thereby preventing the pipe cover from being peeled off.

In addition, since the pipe cover adheres a plurality of sheets and films at a high temperature to have a form of a film, the pipe cover is excellent in flexibility and flexibility, so that the workability is good and the outside of the pipe insulation formed in a curved surface in the field can be easily coated.

1 is a partial cutaway perspective view showing a state in which a pipe insulation and a pipe cover are coated on a conventional pipe.
FIG. 2 is a sectional view of the cross section of FIG. 1; FIG.
3 is a sectional view showing a cross section of a pipe cover according to the present invention;

Hereinafter, a waterproof pipe cover according to the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIG. 3, the waterproof pipe cover 30 according to the present invention includes a metal layer 31 formed of a sheet of metal material, and a resin which is disposed below the metal layer 31 and is cut in the film. The first ethylene resin layer 34 formed of a waterproof resin layer 33 provided in a form, made of polyethylene or ethylene polymer, and provided in a film form between the metal layer 31 and the waterproof resin layer 33; A second ethylene resin layer 35 made of polyethylene or ethylene polymer and provided in a film form below the waterproof resin layer 33 is included.

The metal layer 31 is made of a metal sheet made of metal such as aluminum or stainless steel and has a thickness of 0.6 to 1.0 mm. The metal layer 31 primarily blocks penetration of external moisture and protects the appearance of the pipe insulation 20.

In this case, the metal layer 31 may be a metal sheet as it is, but preferably, the outer surface of the metal layer 31 is surface-treated to prevent corrosion. The surface coating layer 32 is formed by coaching such as fluorine coating, chromate coating, etc. on the outside of the metal layer 31 to improve the corrosion resistance of the metal layer 31.

In addition, the metal layer 31 may not only be processed into a smooth or flat sheet form, but may also be processed to form an embossed pattern or a wave pattern on a surface, thereby improving aesthetics.

The waterproof resin layer 33 is positioned under the metal layer 31 and a synthetic resin is provided in the form of a film to prevent moisture from penetrating into the pipe insulation 20 together with the metal layer 31. Specific examples of the synthetic resin constituting the waterproof resin layer 33 may include Surlyn resin. The cut resin is a registered trademark of DuPont, which refers to a resin in which a random copolymer carboxyl group of ethylene and methacrylic acid is partially neutralized with a metal such as zinc or sodium. These cuts are easily bonded to metals, nylons, polyolefins, epoxies and urethanes, are flexible at low temperatures, and are impact resistant, oil resistant, sealable, durable and workable. The chopped resin is produced in the form of a film to be a waterproof resin layer 33, and positioned below the metal layer 31. In addition to the metal layer 31, the waterproof resin layer 33 prevents moisture from being immersed into the pipe insulation.

The first ethylene resin layer 34 is located between the metal layer 31 and the waterproof resin layer 33. The first ethylene resin layer 34 provided with polyethylene or ethylene polymer in the form of a film serves to firmly bond the metal layer 31 and the waterproof resin layer 33 to each other.

The second ethylene resin layer 35 is located below the waterproof resin layer 33. The second ethylene resin layer 35 is formed in the form of a film of polyethylene or ethylene polymer in the same manner as the first ethylene resin layer 34, it is located below the waterproof resin layer 33.

In particular, the first ethylene resin layer 34 and the second ethylene resin layer 35 are respectively positioned above and below the waterproof resin layer 33, and together with the metal layer 31, the pipe insulation 20 is secondary. To prevent moisture from penetrating.

In this case, the waterproof resin layer 33, the first ethylene resin layer 34 and the second ethylene resin layer 35 are each manufactured in the form of a film having a thickness of 10 ~ 60 μm, the metal layer 31 The first ethylene resin layer 34, the waterproof resin layer 33, and the second ethylene resin layer 35 are sequentially arranged below and bonded to each other at 100 to 170 DEG C, so as to be about 75 μm in total. To facilitate the work of covering the pipe insulation (20).

The pipe heat insulating material 20 is coated using the pipe cover 30 having the above configuration. After the piping of the pipe 10 is completed, as shown by the reference numeral 21 to 23 on the outer side of the pipe 10, and insulated with the pipe insulation 20 in a double layer to insulate the outside of the pipe 10, The pipe cover 30 according to the present invention is coated on the outside of the pipe heat insulating material 20 to prevent moisture from penetrating into the pipe heat insulating material 20, and protects the appearance of the pipe cover 30.

At this time, the pipe cover 30 overlaps a part so as to completely surround the outside of the pipe insulator 20 and does not separate from each other by using an adhesive at the overlapping part.

In addition, by tightening the pipe cover 30 to the outside of the pipe cover 30 at appropriate intervals, so that the pipe cover 30 is not separated from the pipe insulation (20).

10 pipe 20 pipe insulation
30: pipe cover 31: metal layer
32: surface coating layer 33: waterproof resin layer
34: first ethylene resin layer 35: second ethylene resin layer

Claims

In the pipe cover 30 is provided so as to surround the outside of the pipe insulator 20 to insulate the pipe 10,
A metal layer 31 composed of a sheet of metal material,
A waterproof resin layer 33 disposed below the metal layer 31 and having a synthetic resin in the form of a film;
The first ethylene resin layer 34 made of polyethylene or ethylene polymer and provided in a film form between the metal layer 31 and the waterproof resin layer 33,
A moisture-proof pipe cover made of polyethylene or ethylene polymer and comprising a second ethylene resin layer 35 provided below the waterproof resin layer 33 in the form of a film.

The method of claim 1,
The waterproof resin layer 33 is moisture-proof pipe cover, characterized in that made of (Surlyn) resin.

The method of claim 1,
Moisture-proof pipe cover, characterized in that the outer side of the metal layer 31 is further provided with a surface coating layer (32) coated with fluorine or chromate to prevent corrosion of the metal layer (31).

The method of claim 1,
Moisture-proof, characterized in that the first ethylene resin layer 34, the waterproof resin layer 33 and the second ethylene resin layer 35 are sequentially arranged in the lower portion of the metal layer 31, and bonded at 100 ~ 170 ℃ Pipe cover.