Anti-corrosion heat-shrinkable tape for pipeline

Abstract

The utility model provides a pipeline anti-corrosion thermal contraction band, which comprises a positioning raised line, a band body and a connecting patch, the positioning raised line is arranged on the rear side of the upper surface of the band body, the connecting patch is arranged on the upper side of the front end face of the band body, the band body comprises a reinforcing support layer, a base material layer and a hot melt adhesive layer, and the reinforcing support layer is arranged on the upper side of the base material layer. A hot melt adhesive layer is arranged on the lower side of the base material layer, an extrusion molding wrapping sleeve is arranged in the positioning protruding strip, and a fixing framework is arranged in the extrusion molding wrapping sleeve. The belt is reasonable in structure, the belt body can be conveniently and rapidly positioned during winding through the positioning protruding strip, winding of the belt body is facilitated, winding convenience of the belt body is improved, and the belt is convenient to use. And by arranging the reinforcing supporting layer, the structural strength of the belt body is enhanced, and the anti-extrusion and anti-puncture performance of the belt body is improved.

Description

Technical Field

[0001] The utility model relates to a pipeline anti-corrosion heat shrinkable belt, belonging to the technical field of pipeline anti-corrosion. Background Art

[0002] The pipeline anti-corrosion heat shrink tape series products are designed for the anti-corrosion of buried and overhead steel pipeline welds and the insulation patching of insulation pipelines. It is composed of a radiation cross-linked polyolefin substrate and a special sealing hot melt adhesive. The special sealing hot melt adhesive can form a good bond with the polyolefin substrate, the steel pipe surface and the solid epoxy coating. When the WK-WSS pipeline anti-corrosion heat shrink tape is heated and installed, the substrate shrinks radially while the internal composite adhesive layer melts and tightly wraps around the patching. Together with the substrate, it forms a firm anti-corrosion body outside the pipeline, which has excellent wear resistance, corrosion resistance, impact resistance and good resistance to ultraviolet and light aging. In addition, the pipeline anti-corrosion heat shrink tape is called a live sleeve in the industry, which is relatively dead sleeve. In addition to the main body of the pipeline anti-corrosion heat shrink tape, it is also equipped with a rubber strip and a fixing sheet. The pipeline anti-corrosion heat shrink tape is easy to mass produce and the construction is also much more convenient.

[0003] Chinese patent number CN10427939A discloses a pipeline anticorrosion heat shrink tape, which is a layered structure, wherein the first layer is a polyethylene substrate layer, and a hot melt adhesive layer and a solid epoxy coating are sequentially arranged on the polyethylene substrate layer. The polyethylene substrate layer is a high-density polyethylene that has been cross-linked and irradiated. The polyethylene substrate layer is coated on a polypropylene pipe. The hot melt adhesive layer has sealing properties. The purpose of the present invention is to provide a pipeline anticorrosion heat shrink tape that is waterproof, acid-proof, alkali-proof, anti-corrosion, simple in structure, and low in manufacturing cost.

[0004] However, in the above technical solution, the structure of the heat shrinkable tape is relatively simple, the structural strength is not high enough, the anti-extrusion and anti-puncture performance is not good enough, it is easily damaged by scratches of sharp objects, and the heat shrinkable tape is not convenient for rapid positioning when winding, and the winding will deviate, affecting the protective effect of the pipeline. Now there is an urgent need for a pipeline anti-corrosion heat shrinkable tape to solve the above problems. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a pipeline anti-corrosion heat shrinkable belt to solve the problems raised in the above-mentioned background technology. The utility model has a reasonable structure. The positioning convex strips are arranged to facilitate rapid positioning of the belt body during winding, which is beneficial to the winding of the belt body and improves the convenience of winding the belt body. The structural strength of the belt body is enhanced by the arranged reinforced support layer, thereby improving the anti-extrusion and anti-puncture properties of the belt body.

[0006] In order to achieve the above-mentioned purpose, the utility model is realized by the following technical scheme: a pipeline anticorrosion heat shrinkable belt, comprising a positioning convex strip, a belt body and a connecting patch, wherein the rear side of the upper surface of the belt body is provided with a positioning convex strip, and the upper side of the front end surface of the belt body is provided with a connecting patch;

[0007] The belt body comprises a reinforcing support layer, a base material layer and a hot melt adhesive layer, wherein the reinforcing support layer is arranged on the upper side of the base material layer, and the hot melt adhesive layer is arranged on the lower side of the base material layer;

[0008] An extruded plastic sheath is arranged inside the positioning convex strip, and a fixed frame is arranged inside the extruded plastic sheath.

[0009] Furthermore, an anti-corrosion coating is provided on the upper surface of the reinforcing support layer.

[0010] Furthermore, the reinforcing support layer is made of cross-woven glass fiber yarns.

[0011] Furthermore, two groups of the extruded covers are provided, and the two groups of the extruded covers are respectively provided on the left and right sides of the positioning convex strip, and fixed frames are provided inside the two groups of the extruded covers.

[0012] Furthermore, a connector is provided at the connection between the two groups of extruded packages, and the connector and the two groups of extruded packages are an integrally formed structure.

[0013] Furthermore, the thickness of the positioning convex strip is the same as the thickness of the belt body, the thickness of the connecting patch is half the thickness of the belt body, and the width of the connecting patch is the same as the width of the positioning convex strip.

[0014] By adopting the above technical scheme, the beneficial effects of the utility model are as follows: the utility model is a pipeline anti-corrosion heat shrinkable belt, through the positioning convex strips, extruded package, fixed frame, belt body, reinforcing support layer, substrate layer, hot melt adhesive layer and connecting patch, the design is convenient for rapid positioning of the belt body during winding through the positioning convex strips, which is beneficial to the winding of the belt body and improves the convenience of winding the belt body, and the structural strength of the belt body is enhanced through the reinforcing support layer, and the anti-extrusion and anti-puncture properties of the belt body are improved, which solves the problems that the structure of the heat shrinkable belt in the original technical scheme is relatively simple, the structural strength is not high enough, the anti-extrusion and anti-puncture properties are not good enough, it is easy to be damaged by scratches of sharp objects, and the heat shrinkable belt is not easy to be quickly positioned during winding, and the winding will have deviations, affecting the protection effect of the pipeline, thereby improving the practicality of the utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0016] Figure 1This is a schematic diagram of the structure of a pipeline anti-corrosion heat shrinkable tape of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of a belt body in a pipeline anti-corrosion heat shrink belt of the utility model;

[0018] Figure 3 This is a structural schematic diagram of a positioning convex strip in a pipeline anticorrosion heat shrinkable belt of the utility model;

[0019] In the figure: 1-positioning convex strip, 11-extruded coating, 12-fixed frame, 13-connector, 2-belt body, 21-anti-corrosion coating, 22-reinforced support layer, 23-base material layer, 24-hot melt adhesive layer, 3-connecting patch. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0021] See also Figure 1-Figure 3 The utility model provides a technical solution: a pipeline anticorrosion heat shrinkable belt, comprising a positioning convex strip 1, a belt body 2 and a connecting patch 3, wherein the positioning convex strip 1 is arranged on the rear side of the upper surface of the belt body 2, and the connecting patch 3 is arranged on the upper side of the front end surface of the belt body 2;

[0022] The belt body 2 includes a reinforcing support layer 22, a base material layer 23 and a hot melt adhesive layer 24. The reinforcing support layer 22 is arranged on the upper side of the base material layer 23, and the hot melt adhesive layer 24 is arranged on the lower side of the base material layer 23.

[0023] An extruded sheath 11 is provided inside the positioning convex strip 1, and a fixed frame 12 is provided inside the extruded sheath 11. This design solves the problems in the original technical solution that the heat shrinkable belt has a relatively simple structure, the structural strength is not high enough, the anti-extrusion and anti-puncture performance is not good enough, it is easy to be damaged by scratches by sharp objects, and the heat shrinkable belt is not easy to be quickly positioned when winding, and there will be deviations in the winding, which affects the protection effect of the pipeline.

[0024] The anti-corrosion coating 21 is disposed on the upper surface of the reinforcing support layer 22 . The anti-corrosion coating 21 can provide anti-corrosion protection for the reinforcing support layer 22 , thereby further improving the anti-corrosion property of the belt body 2 .

[0025] The reinforcing support layer 22 is made of cross-woven glass fiber yarns. The glass fiber yarn is an inorganic non-metallic material with excellent performance, high tensile strength, small elongation, high elastic coefficient and good rigidity.

[0026] Two groups of extruded covers 11 are provided, and the two groups of extruded covers 11 are respectively arranged on the left and right sides of the positioning convex strip 1. A fixed frame 12 is arranged inside the two groups of extruded covers 11. The two groups of extruded covers 11 and the fixed frame 12 improve the support stability of the positioning convex strip 1.

[0027] A connector 13 is provided at the connection of the two groups of extruded packages 11 . The connector 13 and the two groups of extruded packages 11 are an integrally formed structure. The two groups of extruded packages 11 can be fixedly connected by the connector 13 .

[0028] The thickness of the positioning convex strip 1 is the same as that of the belt body 2 , the thickness of the connecting patch 3 is half of the thickness of the belt body 2 , and the width of the connecting patch 3 is the same as that of the positioning convex strip 1 .

[0029] As an embodiment of the utility model: when in use, the belt body 2 is adhered to the pipe surface through the hot melt adhesive layer 24, and then the belt body 2 is spirally wound along the pipe surface. When winding, the connecting patch 3 is fitted with the surface of the positioning convex strip 1. The positioning convex strip 1 can be used to quickly position the wound belt body 2, which is convenient for winding the belt body 2. The wound belt body 2 forms a protective layer on the outside of the pipe, which plays an anti-corrosion protection role for the pipe. At the same time, the structural strength of the belt body 2 is enhanced by strengthening the supporting layer 22, and the anti-extrusion and anti-puncture performance of the belt body 2 is improved.

[0030] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0031] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A pipeline anticorrosion heat shrinkable tape, comprising a positioning convex strip (1), a tape body (2) and a connecting patch (3), characterized in that: A positioning convex strip (1) is provided on the rear side of the upper surface of the belt body (2), and a connecting patch (3) is provided on the upper side of the front end surface of the belt body (2); The belt body (2) comprises a reinforcing support layer (22), a base material layer (23) and a hot melt adhesive layer (24); the reinforcing support layer (22) is arranged on the upper side of the base material layer (23), and the hot melt adhesive layer (24) is arranged on the lower side of the base material layer (23); An extruded plastic sheath (11) is provided inside the positioning convex strip (1), and a fixed frame (12) is provided inside the extruded plastic sheath (11).

2. The pipeline anticorrosion heat shrinkable tape according to claim 1, characterized in that: The upper surface of the reinforcing support layer (22) is provided with an anti-corrosion coating (21).

3. The pipeline anticorrosion heat shrinkable tape according to claim 1, characterized in that: The reinforcing support layer (22) is made of cross-woven glass fiber yarns.

4. The pipeline anticorrosion heat shrinkable tape according to claim 1, characterized in that: Two groups of the extruded packages (11) are provided, and the two groups of the extruded packages (11) are respectively provided on the left and right sides of the interior of the positioning convex strip (1), and a fixed frame (12) is provided inside the two groups of the extruded packages (11).

5. The pipeline anticorrosion heat shrinkable tape according to claim 4, characterized in that: A connector (13) is provided at the connection between the two groups of extruded packages (11); the connector (13) and the two groups of extruded packages (11) are an integrally formed structure.

6. The pipeline anticorrosion heat shrinkable tape according to claim 1, characterized in that: The thickness of the positioning convex strip (1) is the same as that of the belt body (2), the thickness of the connecting patch (3) is half the thickness of the belt body (2), and the width of the connecting patch (3) is the same as that of the positioning convex strip (1).

Images