Double-reinforced all-steel spiral line PE composite pipe

Abstract

The utility model discloses a double reinforcement all steel spiral line PE composite pipe, including PE inner pipe, PE middle layer, steel fiber band inner layer, steel fiber band outer layer, PE outer layer and protection layer, PE middle layer is fixed on PE inner pipe through first bonding layer, steel fiber band outer layer is fixed on PE middle layer through steel fiber band inner layer, PE outer layer is fixed on steel fiber band outer layer through second bonding layer, PE outer layer is fixed on PE inner pipe through second bonding layer, PE outer layer is fixed on PE outer layer through second bonding layer. And the protective layer is arranged on the PE outer layer. The composite pipe consists of a plurality of layers, so that the composite pipe has the functions of compression resistance, tension resistance, corrosion resistance and the like, can be used under various environmental conditions, and can also ensure that the composite pipe has longer service life.

Description

Technical Field

[0001] The utility model relates to the field of composite pipes, in particular to a double-reinforced all-steel spiral PE composite pipe. Background Art

[0002] With the development of society, roads, railways, tunnels and other places all need pipes for water delivery and drainage. In high-rise buildings, pipes need to withstand high pressure, tensile strength and fire resistance. Underground, pipes need to meet anti-corrosion functions, etc. It is precisely because of the different usage environments that the service life of pipes is relatively short. Utility Model Content

[0003] The utility model aims to overcome the deficiencies of the prior art and provide a double-reinforced all-steel spiral PE composite pipe.

[0004] The purpose of this utility model is achieved through the following technical solutions:

[0005] A double-reinforced all-steel spiral PE composite pipe comprises a PE inner pipe, a PE middle layer, a steel fiber tape inner layer, a steel fiber tape outer layer, a PE outer layer and a protective layer, wherein the PE middle layer is fixed to the PE inner pipe through a first adhesive layer, the steel fiber tape outer layer is fixed to the PE middle layer through the steel fiber tape inner layer, the PE outer layer is fixed to the steel fiber tape outer layer through a second adhesive layer, and the protective layer is arranged on the PE outer layer.

[0006] Furthermore, the inner layer of the steel fiber belt and the outer layer of the steel fiber belt are both steel fiber belt layers with rubber.

[0007] Furthermore, the first adhesive layer and the second adhesive layer are both adhesive layers.

[0008] Furthermore, the outer layer of the steel fiber tape is reversely wound on the inner layer of the steel fiber tape.

[0009] Furthermore, the outer layer of the steel fiber belt is wound on the inner layer of the steel fiber belt in the same direction.

[0010] Furthermore, the inner layer of the steel fiber belt and the outer layer of the steel fiber belt are both arranged in a spiral manner.

[0011] Furthermore, the protective layer is a tri-type polypropylene resin layer.

[0012] Furthermore, the adhesive steel fiber tape layer consists of a steel fiber tape and a hot melt adhesive layer, and the hot melt adhesive layer is coated on the steel fiber tape.

[0013] Furthermore, the adhesive layer is an adhesive resin layer.

[0014] The beneficial effects of the utility model are:

[0015] The composite pipe is composed of multiple layers, so it has the functions of compression resistance, tension resistance and corrosion resistance, and can be used under various environmental conditions, while also ensuring that the composite pipe has a longer service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is the end connection structure diagram of the composite pipe;

[0017] Figure 2 This is a diagram of the connection structure between the layers on the side of the composite pipe;

[0018] In the figure, 1-PE inner tube, 2-second bonding layer, 3-PE middle layer, 4-steel fiber tape inner layer, 5-steel fiber tape outer layer, 6-PE outer layer, 7-protective layer, 8-first bonding layer. DETAILED DESCRIPTION

[0019] The following will be combined with the embodiments to clearly and completely describe the technical solution of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-Figure 2 , the utility model provides a technical solution:

[0021] A double-reinforced all-steel spiral PE composite pipe, characterized in that it includes a PE inner pipe 1, a PE middle layer 3, a steel fiber tape inner layer 4, a steel fiber tape outer layer 5, a PE outer layer 6 and a protective layer 7, wherein the PE middle layer 3 is fixed to the PE inner pipe 1 through a first adhesive layer 8, the steel fiber tape outer layer 5 is fixed to the PE middle layer 3 through the steel fiber tape inner layer 4, the PE outer layer 6 is fixed to the steel fiber tape outer layer 5 through a second adhesive layer 2, and the protective layer 7 is arranged on the PE outer layer 6. Among them, the PE inner pipe 1, the PE middle layer 3 and the PE outer layer 6 are all made of polyethylene materials in the prior art, and under the bonding of the rubber-coated steel fiber tape layer, the first adhesive layer 8 and the second adhesive layer 2, the structure of the composite pipe is more compact and has multiple properties, which makes the composite pipe have a longer life during use.

[0022] In some embodiments, the inner steel tape layer 4 and the outer steel tape layer 5 are both adhesive steel tape layers. The adhesive steel tape layer is composed of a steel tape and a hot melt adhesive layer, and the hot melt adhesive layer is coated on the steel tape. The steel tape and the hot melt adhesive layer are both prior art materials. The hot melt adhesive layer is heated on the steel tape, so that the steel tape is directly bonded and fixed during the winding process, making the internal structure of the composite pipe tighter.

[0023] In some embodiments, the first adhesive layer 8 and the second adhesive layer 2 are both adhesive layers. The adhesive layer is an adhesive resin layer. The adhesive resin layer is an adhesive material in the prior art. The first adhesive layer 8 is used to bond and fix the PE middle layer 3 to the PE inner tube 1, and the second adhesive layer 2 is used to fix the PE outer layer 6 to the steel fiber belt outer layer 5.

[0024] In some embodiments, the outer layer 5 of the steel fiber belt is reversely wound on the inner layer 4 of the steel fiber belt. The outer layer 5 of the steel fiber belt is wound on the inner layer 4 of the steel fiber belt in the same direction. The inner layer 4 of the steel fiber belt and the outer layer 5 of the steel fiber belt are both arranged in a spiral manner. Among them, in the present technology, the inner layer 4 of the steel fiber belt is spirally wound on the PE middle layer 3, and the outer layer 5 of the steel fiber belt is spirally wound on the inner layer 4 of the steel fiber belt, and the winding direction of the inner layer 4 of the steel fiber belt is opposite to that of the outer layer 5 of the steel fiber belt.

[0025] In the description of the present invention, it should be understood that the terms "outside", "upper", "inside", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0026] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "disposed" and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0027] The above is only a preferred embodiment of the utility model. It should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the utility model, and should be within the scope of protection of the claims attached to the utility model.

Claims

1. A double-reinforced all-steel spiral PE composite pipe, Features: The invention comprises a PE inner tube (1), a PE middle layer (3), a steel fiber tape inner layer (4), a steel fiber tape outer layer (5), a PE outer layer (6) and a protective layer (7), wherein the PE middle layer (3) is fixed to the PE inner tube (1) via a first adhesive layer (8), the steel fiber tape outer layer (5) is fixed to the PE middle layer (3) via the steel fiber tape inner layer (4), the PE outer layer (6) is fixed to the steel fiber tape outer layer (5) via a second adhesive layer (2), and the protective layer (7) is arranged on the PE outer layer (6).

2. A double-reinforced all-steel spiral PE composite pipe according to claim 1, Features: The inner layer (4) of the steel fiber belt and the outer layer (5) of the steel fiber belt are both steel fiber belt layers with rubber.

3. A double-reinforced all-steel spiral PE composite pipe according to claim 1 or 2, Features: The first adhesive layer (8) and the second adhesive layer (2) are both adhesive layers.

4. A double-reinforced all-steel spiral PE composite pipe according to claim 1 or 2, Features: The outer layer (5) of the steel fiber belt is reversely wound on the inner layer (4) of the steel fiber belt.

5. A double-reinforced all-steel spiral PE composite pipe according to claim 1 or 2, Features: The outer layer (5) of the steel fiber belt is wound on the inner layer (4) of the steel fiber belt in the same direction.

6. A double-reinforced all-steel spiral PE composite pipe according to claim 1 or 2, Features: The inner layer (4) of the steel fiber belt and the outer layer (5) of the steel fiber belt are both arranged in a spiral manner.

7. A double-reinforced all-steel spiral PE composite pipe according to claim 1 or 2, Features: The protective layer (7) is a tri-type polypropylene resin layer.

8. The double-reinforced all-steel spiral PE composite pipe according to claim 2, Features: The adhesive steel fiber tape layer consists of a steel fiber tape and a hot melt adhesive layer, and the hot melt adhesive layer is covered on the steel fiber tape.

9. The double-reinforced all-steel spiral PE composite pipe according to claim 3, Features: The bonding layer is a bonding resin layer.

Images