Pipeline lining repairing polyurethane hose

Abstract

The utility model discloses a pipeline lining repairing polyurethane hose, and relates to the technical field of pipeline repairing. The super-elastic type lining repairing polyurethane hose comprises a super-elastic type lining repairing polyurethane hose body, the hose body is a two-layer composite body formed by mixing an outer layer polyurethane film layer and an inner layer acrylic fiber and dacron, and polyurethane particles are extruded through an extruder, are subjected to film casting and then are compounded on the surface of the acrylic fiber and dacron mixed single-face flannelette, so that the super-elastic type lining repairing polyurethane hose body is formed. The flexible pipe has the advantages that the flexible pipe is high in bonding firmness, does not contain any adhesive, is formed at a time, can finally achieve and complete the best effect of engineering operation, and gives full play to the characteristics of polyurethane materials, the butt joint edges of the flexible pipe are formed by sewing high-strength lines and then conducting high-temperature hot pressing through polyurethane joint pressing strips, and the flexible pipe is not prone to deformation. And finally, non-excavation lining repair hoses with different pipe diameters are manufactured according to different operation pipelines.

Description

TECHNICAL FIELD

[0001] The utility model relates to pipeline repair technical field, concretely is a pipeline lining repair polyurethane hose. BACKGROUND

[0002] Trenchless repair refers to the update and repair of underground pipelines through a small part of surface excavation, which originated in the UK and was widely developed in Germany. The application of this technology does not hinder traffic, does not damage green land, vegetation, and does not affect the normal life and work order of shops, hospitals, schools, and residents. It solves the interference of traditional excavation construction on residents' life, the damage and adverse effects on traffic, environment, and surrounding buildings, and the main implementation process is as follows: a fiber lining pipe is made with a polymer coating on the outer layer, which is first impregnated with resin material to make the inside lining pipe, and then turned over by water gravity, air pressure, or pulled into the pipeline to be repaired. After the inside lining pipe is installed in the main pipeline, the resin material is cured by normal temperature curing, heating curing, and ultraviolet light curing. After the resin material is cured, the lining pipe impregnated with resin material is hardened, forming a new lining pipeline in the original pipeline.

[0003] The traditional pipeline lining repair polyurethane hose has poor flexibility, wear resistance, and scratch resistance, so if the internal impurities of the pipeline are too much or the pipeline is circular, oval, square, or special-shaped, it is not suitable for use, and there is a risk of scratching. Therefore, when designing the pipeline lining repair polyurethane hose, a new maintenance mechanism is needed to better repair the connection between the inside of the pipeline and the inner wall of the repaired pipeline, while having the advantages of corrosion resistance and wear resistance, and improving the flow capacity of the pipeline. UTILITY MODEL CONTENT

[0004] Therefore, the utility model aims to provide a pipeline lining repair polyurethane hose to solve the technical problem of poor adaptability of traditional pipeline lining repair polyurethane hoses.

[0005] In order to achieve the above object, the utility model provides the following technical scheme: a pipeline lining repair polyurethane hose, this trenchless lining repair polyurethane hose, including lining hose, the inside of lining hose is provided with single face flannelette, the flannelette is made of acrylic and polyester (15%) mixture, after extruding, casting film of polyurethane granules through extruder, compound in the single face flannelette surface of acrylic and polyester mixture, such effect is stronger adhesion, when not contain any adhesive, one forming, finally can reach, and complete the best effect of engineering operation, give full play to the characteristics of polyurethane material, the butt joint edge of the hose is sewed with high strength thread and then made into a joint strip by hot pressing, finally, different pipeline repair hoses with different diameters are made according to different operation pipelines.

[0006] Further, the lining hose is made of polyurethane film, and the material of the pipeline is polyurethane granules extruded by an extruder, cast into a film and then compounded on the surface of the single face flannelette.

[0007] Further, the lining hose is columnar as a whole, and the material of the single face flannelette is acrylic and polyester (15%) mixture.

[0008] Further, the lining hose joint is sewn with high-strength thread, the material of the joint strip is polyurethane, and the joint strip is hot-melted and attached to the hose joint.

[0009] Further, the material of the joint strip is polyurethane, and the joint strip is hot-melted and attached to the hose joint.

[0010] Further, the outer side of the single face flannelette is provided with an old pipeline lining hose outside joint to be repaired, which is fixed and attached by the joint strip, the hose joint seam is sewn with high-strength thread, and the lining repair hoses with different diameters can be made according to different operation pipelines.

[0011] In summary, the utility model mainly has the following beneficial effects:

[0012] The present application has the following beneficial effects: the polyurethane has flexibility, excellent scratch resistance, corrosion resistance and high strength, and can be used to repair the pipeline and the inner wall of the repaired pipeline, repair the elbow angle ≤45℃ and different shape pipelines: circular, oval, square or special-shaped pipeline, convey medium pipeline, domestic drainage, and the lining pipe has the advantages of corrosion resistance and wear resistance, high material strength, small pipeline cross-sectional area loss, smooth surface, reduced water flow friction, improved pipeline flow capacity, and the material is an environmentally friendly material made of highly flexible base material, which can change up to 2 diameters, has a pressure resistance of up to 0.8 bar, a high temperature resistance of up to 70 degrees, a pressure resistance of up to 0.5 bar, and is suitable for variable-diameter pipelines. BRIEF DESCRIPTION OF DRAWINGS

[0013] Fig. 1 The sectional structure diagram of the polyethylene composite pipe material of the present application;

[0014] Fig. 2 The pipe sectional view before construction of the polyethylene composite pipe of the present application;

[0015] Fig. 3 The pipe sectional view after construction of the polyethylene composite pipe of the present application.

[0016] In the figure: 1, polyurethane film layer; 2, single-sided velvet; 3, polyurethane joint pressing strip; 4, old pipeline to be repaired. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. The embodiments described below with reference to the drawings are exemplary and are used only for explaining the present application, and cannot be understood as a limitation of the present application.

[0018] According to the overall structure of the present application, Figs. 1-3 The embodiments thereof will be described. A pipeline lining repair polyurethane hose preparation method comprises the following steps:

[0019] Step one: polyurethane granular material is extruded by an extruder, cast into a film, and then compounded on the surface of single-sided velvet 2 made of 85% acrylic and 15% polyester.

[0020] Step two: the raw materials are cut according to different pipeline diameters to be repaired.

[0021] Step three: high-strength thread is used to sew the butt joint edge to form a pipeline.

[0022] Step four: the polyurethane joint pressing strip 3 is heated by high temperature and attached to the hose joint to form the lining repair polyurethane hose.

[0023] By adopting the above technical solutions, the lining hose has the advantages of corrosion resistance and wear resistance, high material strength, small pipeline sectional area loss, smooth surface, reduced water flow friction, improved pipeline flow capacity, and the materials are all environmentally friendly materials made of highly flexible base materials, which can change at most 2 diameters, have a high pressure resistance of 0.8 bar, and a high temperature resistance of 70 degrees. In this case, the pressure resistance is as high as 0.5 bar, and it is suitable for variable diameter pipelines.

[0024] The parts not involved in the present application are the same as or can be realized by the prior art, and will not be described in detail here.

[0025] Although the embodiments of the utility model have been shown and described, the specific embodiments are only the explanation of the utility model, and are not the limitation of the utility model, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable way, the person skilled in the art can make the modification, replacement and change of no creative contribution to the embodiment according to the need after reading the specification without departing from the principle and the purpose of the utility model, but as long as in the patent right claim range of the utility model, it is protected by the patent law.

Claims

1. A pipe lining rehabilitation polyurethane hose comprising a lining hose, characterised in that: The inner lining hose is internally provided with single-sided flannelette (2) made of acrylic and polyester mixture; The outer part of the inner lining hose is polyurethane film layer (1); The outer side seam of the inner lining hose is fixed and attached by polyurethane seam strip (3); The material of the polyurethane seam strip (3) is polyurethane, and the polyurethane seam strip (3) is attached to the hose seam by hot melting.

2. The in-pipe lining rehabilitation polyurethane hose according to claim 1, characterized in that: The whole inner lining hose is columnar.

3. The in-pipe lining rehabilitation polyurethane hose of claim 1, wherein: The inner lining hose seam uses polyurethane seam strip (3).

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