Composite lining repair hose with single-sided TPU (thermoplastic polyurethane) coating structure

Abstract

The utility model discloses a composite lining repair hose with a single-sided TPU (thermoplastic polyurethane) coating structure, which belongs to the technical field of transportation pipelines and comprises a first polymer fiber braid layer and a second polymer fiber braid layer, the first polymer fiber braid layer is arranged inside the second polymer fiber braid layer, and the second polymer fiber braid layer is arranged inside the first polymer fiber braid layer. The outer surface of the second macromolecule weaving layer is coated with a TPU coating, the outer surface of the formed hose is a smooth coating, the TPU coating structure is adopted, the temperature resistance and the abrasion resistance of the lining hose are improved, the quality of the lining repairing hose is improved, and the application range is widened.

Description

TECHNICAL FIELD

[0001] The utility model relates to transportation pipeline technical field especially is related to a single face TPU coating structure composite lining repair flexible tube. BACKGROUND

[0002] The city drainage pipeline is as the important infrastructure part of the city, directly influences the normal operation of the city, and life, work, travel etc.

[0003] According to the data introduction, the old pipeline repaired by the composite flexible tube of the inversion method lining can prolong the service life by more than 30 years.

[0004] The quality of the current lining flexible tube is unstable, and the temperature resistance and wear resistance are poor, and the repaired pipeline accidents occur frequently.

[0005] Therefore, it is necessary to provide a single face TPU coating structure composite lining repair flexible tube to solve the above problems. UTILITY MODEL CONTENTS

[0006] The utility model discloses a single face TPU coating structure composite lining repair flexible tube, solves the quality of the current lining flexible tube and the problem of poor temperature resistance and wear resistance.

[0007] To realize the above-mentioned purpose, the utility model provides a single face TPU coating structure composite lining repair flexible tube, including first high molecular fiber braided layer and second high molecular braided layer, first high molecular fiber braided layer is arranged in second high molecular fiber braided layer inside, the outer surface of second high molecular braided layer is coated with TPU coating, and the outer surface of the flexible tube formed is smooth coating.

[0008] Preferably, the first high molecular fiber braided layer and the second high molecular braided layer are connected by a high molecular connecting column, and the high molecular connecting column forms a plurality of cavities inside the first high molecular fiber braided layer and the second high molecular braided layer.

[0009] Preferably, the inside of the first high molecular fiber braided layer is coated with a waterproof coating.

[0010] Preferably, the first high molecular fiber woven layer and the second high molecular woven layer are integrally formed with the TPU coating layer coated on the outer surface and the waterproof coating layer coated on the inner surface.

[0011] Preferably, the waterproof coating layer is provided with a fiber layer on the inner side, and the fiber layer is composed of high molecular chemical fiber or plant fiber or inorganic fiber.

[0012] Preferably, the waterproof material is waterproof paint made of rubber and resin as main raw materials.

[0013] Therefore, the single-surface TPU coating structure composite inner lining repair hose has the following beneficial effects:

[0014] 1. The second high molecular woven layer is coated with a TPU coating layer on the outer surface, and the formed hose has a smooth coating on the outer surface, thereby improving the poor temperature resistance and wear resistance of the repair hose.

[0015] 2. The first high molecular fiber woven layer and the second high molecular woven layer are provided and connected through a high molecular connecting column to form a plurality of cavities, thereby effectively improving the temperature insulation effect and assisting the TPU coating layer to improve the heat resistance of the hose.

[0016] 3. The waterproof material is waterproof paint made of rubber and resin as main raw materials, thereby improving the hydrophobicity and corrosion resistance of the hose.

[0017] The technical solutions of the present application will be further described in detail below with reference to the drawings and examples. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a sectional view of the single-surface TPU coating structure composite inner lining repair hose.

[0019] Label Description

[0020] 1. First high molecular fiber woven layer; 2. Second high molecular woven layer; 3. TPU coating layer; 4. High molecular connecting column; 5. Cavity; 6. Waterproof coating layer; 7. Fiber layer. DETAILED DESCRIPTION

[0021] The technical solutions of the present application will be further described in detail below with reference to the drawings and examples.

[0022] Unless otherwise defined, technical terms or scientific terms used in the present application shall have the ordinary meaning as understood by a person of ordinary skill in the art to which the present application pertains. The terms "first", "second", and similar terms used in the present application do not denote any order, quantity, or importance, but are only used to distinguish different components. The terms "comprise", "include", and similar terms mean that the elements or objects before the term encompass the elements or objects listed after the term and their equivalents, and do not exclude other elements or objects. The terms "connected" or "connected" and similar terms are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right", and the like are only used to represent relative positional relationships, which may change accordingly when the absolute position of the described object changes.

[0023] As shown in the accompanying drawings of the present application Figure 1 A schematic view of a single-sided TPU coating structure composite inner liner repair hose of the present application, a first high molecular fiber braid layer 1 and a second high molecular fiber braid layer 2, the first high molecular fiber braid layer 1 is arranged inside the second high molecular fiber braid layer, the outer surface of the second high molecular fiber braid layer 2 is coated with a TPU coating layer 3, and the formed hose has a smooth coating on the outer surface. The TPU raw material has good resistance to oil and many solvents, the TPU coating layer 3 has good weather resistance, excellent high-energy radiation resistance, excellent wear resistance, tear resistance, and flexural strength, high tensile strength, high elongation, low long-term compression permanent deformation rate, etc. are the outstanding advantages of TPU. The present application utilizes the wear-resistant and temperature-resistant properties of TPU to extrude and coat it on the high molecular fiber braid tube, thereby improving the unstable quality, poor temperature resistance, and poor wear resistance of the inner liner hose.

[0024] The first high molecular fiber braid layer 1 and the second high molecular fiber braid layer 2 are connected by a high molecular connecting column 4, which forms a plurality of cavities 5 inside the first high molecular fiber braid layer 1 and the second high molecular fiber braid layer 2. The formation of the cavities 5 can insulate the entire structure and assist the TPU coating layer 3 to achieve better temperature resistance. The inner side of the first high molecular fiber braid layer 1 is coated with a waterproof coating 6. The first high molecular fiber braid layer 1 and the second high molecular fiber braid layer 2 are integrally formed with the TPU coating layer 3 coated on the outer surface and the waterproof coating 6 coated on the inner surface. The inner side of the waterproof coating 6 is provided with a fiber layer 7, which is composed of high molecular chemical fiber or plant fiber or inorganic fiber. The plant fiber includes hemp and silk from plants, and the inorganic fiber includes basalt fiber and asbestos. The waterproof material is a waterproof coating made of rubber and resin as the main raw material. The waterproof coating made of rubber and resin as the main raw material has good hydrophobicity and corrosion resistance.

[0025] Therefore, the utility model discloses a single -sided TPU coating structure composite inner lining repair flexible pipe with the above structure, the quality of the current inner lining flexible pipe is unstable, the problem of poor temperature resistance, poor wear resistance, frequent pipeline accident after repair, low flexible pipe quality is solved.

[0026] Finally, it should be noted that: the above examples are only used to illustrate the technical scheme of the utility model and not to limit it, although the utility model has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that: its still can modify or equivalent replace the technical scheme of the utility model, and these modifications or equivalent replacements also can not make the modified technical scheme deviate from the spirit and scope of the technical scheme of the utility model.

Claims

1. A single-jacket TPU-coated structural composite innerliner repair hose characterized by: The first high polymer fiber braid layer is arranged inside the second high polymer fiber braid layer, and the outer surface of the second high polymer braid layer is coated with a TPU coating layer, so that the outer surface of the formed hose is smooth and coated.

2. A single-jacket TPU coated construction hose repair hose according to claim 1, characterized in that: The first high polymer fiber braid layer and the second high polymer braid layer are connected through a high polymer connecting column, and the high polymer connecting column forms a plurality of cavities inside the first high polymer fiber braid layer and the second high polymer braid layer.

3. A single-jacket TPU coated construction hose repair hose according to claim 2, characterized in that: The inner side of the first high polymer fiber braid layer is coated with a waterproof coating layer.

4. A single-jacket TPU coated construction hose repair hose according to claim 3, characterized in that: The first high polymer fiber braid layer and the second high polymer braid layer are integrated with the TPU coating layer coated on the outer surface and the waterproof coating layer coated on the inner surface.

5. A single-jacket TPU coated construction hose repair hose according to claim 4, characterized in that: The waterproof coating layer is provided with a fiber layer on the inner side, and the fiber layer is composed of high polymer chemical fiber or plant fiber or inorganic fiber, the plant fiber includes hemp and silk from plants, and the inorganic fiber includes basalt fiber and asbestos.

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