Special composite pipe for conveying hard fluid medium

Abstract

The utility model discloses a special composite pipe for conveying hard fluid media, which belongs to the technical field of composite pipes and comprises a wear-resistant layer A, a wear-resistant layer B, a pressure-bearing structural layer, an outer rubber wear-resistant layer and a spiral nylon wear-resistant sheath layer. The wear-resistant layer A, the wear-resistant layer B, the pressure-bearing structure layer, the outer rubber wear-resistant layer and the spiral nylon wear-resistant sheath layer are sequentially bonded from inside to outside. The wear-resistant and corrosion-resistant pipeline has good comprehensive performance of wear resistance, heat resistance, corrosion resistance, mechanical shock resistance and thermal shock resistance, and is an ideal wear-resistant and corrosion-resistant pipeline for conveying various materials.

Description

Technical Field

[0001] The utility model belongs to the technical field of composite pipes, and more specifically relates to a special composite pipe for conveying hard fluid media. Background Art

[0002] Composite pipes are pipes made of two or more materials, which usually include metals and non-metals. The characteristic of composite pipes is that they combine the advantages of two or more materials. For example, steel-plastic composite pipes combine the pressure resistance of steel and the corrosion resistance of plastics, while aluminum-plastic composite pipes combine the lightness of aluminum and the corrosion resistance of plastics. These pipes are often used in occasions that require good mechanical properties, corrosion resistance, heat resistance or other special requirements, such as water supply, drainage, gas and industrial applications. Common types of composite pipes include steel-plastic composite pipes, aluminum-plastic composite pipes, fiberglass composite pipes, etc., each of which has different advantages and application scenarios. The composite pipes in the prior art often have poor toughness and weak mechanical impact resistance due to the use of hard metals or non-metals such as steel and aluminum, and are easily deformed after being subjected to mechanical impact. Therefore, how to provide a special composite pipe for conveying hard fluid media is a problem that technicians in this field need to solve urgently. Utility Model Content

[0003] In view of this, the utility model provides a special composite pipe for conveying hard fluid media, which has good comprehensive performance of wear resistance, heat resistance, corrosion resistance and resistance to mechanical impact and thermal shock, and is an ideal wear-resistant and corrosion-resistant pipeline for conveying a variety of materials.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A special composite pipe for conveying hard fluid media comprises: a wear-resistant layer A, a wear-resistant layer B, a pressure-bearing structure layer, an outer rubber wear-resistant layer and a spiral nylon wear-resistant sheath layer; the wear-resistant layer A, the wear-resistant layer B, the pressure-bearing structure layer, the outer rubber wear-resistant layer and the spiral nylon wear-resistant sheath layer are bonded in sequence from the inside to the outside.

[0006] Furthermore, the inner surface of the wear-resistant layer A is inlaid with a plurality of small ceramic pieces arranged in an array.

[0007] Furthermore, the wear-resistant layer B is a polyurethane rubber layer.

[0008] Furthermore, the pressure-bearing structural layer is a multi-layer steel wire braided layer or a multi-layer steel wire winding layer or a multi-layer tire cord fabric or a multi-layer steel tire cord, and there is a middle rubber bonding layer in the middle of each layer.

[0009] Furthermore, the outer rubber wear-resistant layer adopts a composite rubber layer specially designed for wear resistance.

[0010] The beneficial effects of the utility model are:

[0011] The utility model has a simple structure and is easy to use. Two wear-resistant layers are arranged inside, namely, a wear-resistant layer A and a wear-resistant layer B, and the inner surface of the wear-resistant layer A is also inlaid with small ceramic pieces. A wear-resistant layer, namely, an outer rubber wear-resistant layer, is arranged outside, so that the composite pipe of the utility model can achieve the technical effect of wear resistance inside and outside. The arrangement of the middle pressure-bearing structure layer can resist mechanical impact and prevent the composite pipe from deformation. Moreover, since the wear-resistant layer A, the wear-resistant layer B, the outer rubber wear-resistant layer and the spiral nylon wear-resistant sheath layer are all made of non-metallic materials, the toughness of the composite pipe is further enhanced. Therefore, the utility model has good comprehensive properties of wear resistance, heat resistance, corrosion resistance and resistance to mechanical impact and thermal shock, and is an ideal wear-resistant and corrosion-resistant pipeline for conveying a variety of materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0013] Figure 1 The accompanying drawing is a schematic structural diagram of the utility model.

[0014] Figure 2 The accompanying drawing is a schematic structural diagram of a small ceramic sheet of the utility model.

[0015] Among them, in the figure:

[0016] 1- wear-resistant layer A; 2- wear-resistant layer B; 3- pressure-bearing structure layer; 4- outer rubber wear-resistant layer; 5- spiral nylon wear-resistant sheath layer; 6- small ceramic piece. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments 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 in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] Please see attached Figure 1-2The utility model provides a special composite pipe for conveying hard fluid medium, comprising: a wear-resistant layer A1, a wear-resistant layer B2, a pressure-bearing structure layer 3, an outer rubber wear-resistant layer 4 and a spiral nylon wear-resistant sheath layer 5; the wear-resistant layer A1, the wear-resistant layer B2, the pressure-bearing structure layer 3, the outer rubber wear-resistant layer 4 and the spiral nylon wear-resistant sheath layer 5 are sequentially bonded from the inside to the outside. The spiral nylon wear-resistant sheath layer 5 is used to protect the outer rubber wear-resistant layer 4 on the one hand, and on the other hand, it can also play a wear-resistant effect.

[0019] The inner surface of the wear-resistant layer A1 is inlaid with a plurality of small ceramic pieces 6 arranged in an array.

[0020] The wear-resistant layer B2 is a polyurethane rubber layer, which further improves the mechanical impact resistance of the composite pipe of the utility model.

[0021] The pressure-bearing structure layer 3 is two or more layers of steel wire braided layers or multiple layers of steel wire winding layers or multiple layers of tire cord fabrics or multiple layers of steel cords, each layer having a middle rubber bonding layer in the middle. The pressure-bearing structure layer 3 can select two or more layers of different pressure-bearing materials according to the actual pressure-bearing size.

[0022] The outer rubber wear-resistant layer 4 is a wear-resistant composite rubber layer used to prevent external wear.

[0023] The utility model has a simple structure and is easy to use. Two wear-resistant layers are arranged inside, namely, the wear-resistant layer A1 and the wear-resistant layer B2, and the inner surface of the wear-resistant layer A1 is also inlaid with small ceramic pieces 6. A wear-resistant layer, namely, the outer rubber wear-resistant layer 4, is arranged outside, so that the composite pipe of the utility model can achieve the technical effect of wear resistance inside and outside. The arrangement of the middle pressure-bearing structure layer 3 can resist mechanical impact and prevent the composite pipe from deforming. Moreover, since the wear-resistant layer A1, the wear-resistant layer B2, the outer rubber wear-resistant layer 4 and the spiral nylon wear-resistant sheath layer 5 are all made of non-metallic materials, the toughness of the composite pipe is further enhanced. Therefore, the utility model has good comprehensive properties of wear resistance, heat resistance, corrosion resistance, and resistance to mechanical impact and thermal shock, and is an ideal wear-resistant and corrosion-resistant pipeline for conveying a variety of materials.

[0024] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0025] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. Special composite pipe for conveying hard fluid medium, characterized by: include: Wear-resistant layer A (1), wear-resistant layer B (2), pressure-bearing structure layer (3), outer rubber wear-resistant layer (4) and spiral nylon wear-resistant sheath layer (5); the wear-resistant layer A (1), wear-resistant layer B (2), pressure-bearing structure layer (3), outer rubber wear-resistant layer (4) and spiral nylon wear-resistant sheath layer (5) are bonded in sequence from inside to outside.

2. The special composite pipe for conveying hard fluid medium according to claim 1, characterized in that: The inner surface of the wear-resistant layer A (1) is inlaid with a plurality of small ceramic pieces (6) arranged in an array.

3. The special composite pipe for conveying hard fluid medium according to claim 1, characterized in that: The wear-resistant layer B (2) is a polyurethane rubber layer.

4. The special composite pipe for conveying hard fluid medium according to claim 1, characterized in that: The pressure-bearing structural layer (3) is a multi-layer steel wire braided layer or a multi-layer steel wire winding layer or a multi-layer tire cord fabric or a multi-layer steel tire cord, and a middle rubber bonding layer is provided in the middle of each layer.

5. The special composite pipe for conveying hard fluid medium according to claim 1, characterized in that: The outer rubber wear-resistant layer (4) is a composite rubber layer specially designed for wear resistance.

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