A UV-CIPP water service lining hose with a permanent inner membrane

Abstract

The utility model relates to water supply system pipe network trenchless repair technical field, concretely is a kind of UV-CIPP water supply lining hose containing permanent inner membrane, including outer membrane layer, located outermost layer;Outer felt layer, located the inside of outer membrane layer;Lining composite layer, located the inside of outer felt layer;Permanent inner membrane layer, located the inside of lining composite layer.The utility model improves the stability of inner membrane, greatly reduces the possibility of wrinkle occurrence of inner membrane in curing process;Through the permanent bonding isolation effect of permanent inner membrane layer, reduce the possibility of water supply and external contact, so that water supply safety is guaranteed;On the basis of original UV-CIPP technology, retain its original mechanical property advantage by replacing inner membrane for permanent inner membrane, so that it is guaranteed in water supply field, and simultaneously, due to the extension buffering effect of permanent inner membrane, the pressure-bearing capacity of material whole is further strengthened.

Description

Technical Field

[0001] This utility model relates to the field of trenchless repair technology for water supply system pipelines, specifically a UV-CIPP water supply inner lining hose with a permanent inner membrane. Background Technology

[0002] UV-CIPP is a trenchless pipe repair method that involves inserting a resin-impregnated hose into the old pipe and allowing it to cure to form a new lining. Currently, in the context of urban renewal and renovation in China, the leakage rate of water supply networks is relatively high, and the demand for repair is increasing. In addition, trenchless technology has been gradually used for water supply network repair in recent years. UV-CIPP technology, with its fiber-reinforced capabilities, can achieve higher mechanical properties and better resistance to positive and negative pressure, making it widely applicable in the market.

[0003] UV-CIPP repair technology for water supply pipelines requires resistance to both positive and negative pressure. Furthermore, existing UV-CIPP repair methods involve removing the inner lining after installation, leaving the fiberglass resin surface in direct contact with the water inside the pipe. Therefore, the safety of the repair material in contact with drinking water becomes a primary concern for water utilities and residents. To address these challenges and meet the demands of societal development, this invention provides a UV-CIPP water supply liner hose with a permanent inner lining. Summary of the Invention

[0004] To solve the above-mentioned technical problems, this utility model proposes a UV-CIPP water supply inner lining hose with a permanent inner membrane.

[0005] The technical problem to be solved by this utility model is achieved by the following technical solution: A UV-CIPP water supply lined hose with a permanent inner lining, comprising: The outer membrane layer, located on the outermost layer, is used to protect the internal materials; The outer felt layer is located inside the outer membrane layer; The inner lining composite layer, located inside the outer felt layer, serves as a strength support layer for the UV-CIPP water supply inner lining hose. The permanent inner membrane layer, located inside the inner lining composite layer, serves to support and improve the stability of the inner membrane, isolate the water supply from contact with the external fiberglass resin, and enhance pressure resistance.

[0006] As a further improvement of this utility model, the thickness of the outer film layer is 0.2 mm.

[0007] As a further improvement of this utility model, the thickness of the outer felt layer is 0.25-0.28 mm.

[0008] As a further improvement of this utility model, the thickness of the glass fiber layer in the inner lining composite layer is 1mm.

[0009] As a further improvement of this utility model, the thickness of the permanent inner membrane layer is 0.5 mm.

[0010] The beneficial effects of this utility model are: 1. Improved the stability of the inner membrane, greatly reducing the possibility of wrinkles occurring during the curing process; 2. The permanent bonding and isolation effect of the permanent inner membrane layer reduces the possibility of water supply coming into contact with the outside world, thus ensuring the safety of water supply. 3. Based on the original UV-CIPP technology, its original mechanical performance advantages are retained. By replacing the inner membrane with a permanent inner membrane, its safety in the water supply field is guaranteed. At the same time, due to the extension and buffering effect of the permanent inner membrane, the overall pressure resistance of the material is further enhanced. Attached Figure Description

[0011] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 This is a side view of the structure of this utility model; Figure 3 for Figure 2 Schematic diagram of the AA section structure.

[0012] In the diagram: 1. Outer membrane layer; 2. Outer felt layer; 3. Inner lining composite layer; 4. Permanent inner membrane layer. Detailed Implementation

[0013] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0014] like Figures 1 to 3 As shown, a UV-CIPP water supply liner hose with a permanent inner liner mainly consists of the following parts: an outer membrane layer 1, an outer felt layer 2, an inner liner composite layer 3, and a permanent inner membrane layer 4. The outer membrane layer 1 mainly serves to protect the internal materials, and has properties such as UV protection, puncture resistance, and high temperature resistance. The outer membrane layer 1 is welded onto the outer felt layer 2. In this embodiment, the outer membrane layer 1 has a thickness of 0.2 mm. The outer felt layer 2 has a thickness of 0.25-0.28 mm. The outer felt layer 2 is welded onto the inner lining composite layer 3, firmly encapsulating the inner lining composite layer 3. The inner lining composite layer 3 serves as the strength support layer for the entire UV-CIPP inner lining hose, playing a decisive role in the strength of the UV-CIPP inner lining hose. The inner lining composite layer 3 comprises a fiberglass layer and resin.

[0015] In this embodiment, the thickness of the fiberglass layer in the inner lining composite layer 3 is 1 mm, and the overall thickness of the inner lining composite layer 3 is determined according to the design. The inner lining composite layer 3 is multi-layered and overlapped on the surface of the permanent inner membrane layer 4 by stitching.

[0016] In this embodiment, the thickness of the permanent inner membrane layer 4 is 0.5 mm. As a functional layer of the hose material, the permanent inner membrane layer 4 plays a supporting role in inflation and expansion, and has certain stable extensibility, high temperature resistance and light transmittance. The permanent inner membrane layer 4 includes polyester fiber felt and PE film. After curing, the polyester fiber felt contained therein can quickly combine with the resin mixture layer and permanently bond together to achieve water supply. The water supply inside the permanent inner membrane isolates external resin fiberglass and other materials.

[0017] In this invention, the permanent inner membrane layer 4 is formed by welding sheet membranes into a cylindrical membrane corresponding to the pipe diameter; the inner lining composite layer 3 is multi-layered and wrapped on the surface of the permanent inner membrane layer 4 by stitching and overlapping; the outer felt layer 2 is welded to the outside of the inner lining composite layer 3 to firmly wrap the inner lining composite layer 3; the outermost outer membrane layer 1 also has the function of UV protection, and its laying method is similar to that of the outer felt layer 2, and it is also welded to encapsulate the internal structure as a whole.

[0018] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A UV-CIPP water supply liner hose with a permanent inner lining, characterized in that: include: The outer membrane layer (1), located on the outermost layer, is used to protect the internal materials; The outer felt layer (2) is located inside the outer membrane layer (1); The inner lining composite layer (3) is located inside the outer felt layer (2) and serves as a strength support layer for the UV-CIPP water supply inner lining hose. The permanent inner membrane layer (4) is located inside the inner lining composite layer (3) and is used to support and improve the stability of the inner membrane, isolate the water supply from contact with the external glass fiber resin, and enhance the pressure resistance.

2. The UV-CIPP water supply liner hose with a permanent inner membrane according to claim 1, characterized in that: The thickness of the outer membrane layer (1) is 0.2 mm.

3. The UV-CIPP water supply liner hose with a permanent inner lining according to claim 1, characterized in that: The thickness of the outer felt layer (2) is 0.25-0.28 mm.

4. The UV-CIPP water supply liner hose with a permanent inner lining according to claim 1, characterized in that: The thickness of the fiberglass layer in the inner lining composite layer (3) is 1 mm.

5. The UV-CIPP water supply liner hose with a permanent inner membrane according to claim 1, characterized in that: The thickness of the permanent inner membrane layer (4) is 0.5 mm.

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