Multi-layer structure pipeline with sunscreen, anti-freezing, heat preservation and heat insulation functions and shell and manufacturing method of multi-layer structure pipeline

Abstract

The invention discloses a multi-layer structure sunscreen anti-freezing heat preservation and heat insulation pipeline with a shell and a manufacturing method of the multi-layer structure sunscreen anti-freezing heat preservation and heat insulation pipeline. The pipeline comprises a base material inner pipe, an isolation layer, a heat preservation layer, a temperature resistance layer and a metal outer pipe playing a sunscreen protection role. And a temperature-resistant layer is added into a pipeline product for the first time, so that the pipeline has the capabilities of sun protection, freezing resistance and heat preservation and heat insulation at the same time. And due to the use of the metal outer pipe, the internal structure is better protected, and the overall service life of the pipeline is further prolonged. The pipeline with the sun-proof, anti-freezing, heat-preservation and heat-insulation functions is more convenient to install, the appearance consistency of the installed pipeline is high, the attractiveness is improved, additional heat preservation is not needed, the labor cost is reduced, the complexity and waste of materials are reduced, and environmental protection is facilitated.

Description

Technical Field

[0001] The present invention belongs to the technical field of thermal insulation water pipes, and in particular relates to a multi-layer shelled pipe with sun protection, antifreeze, thermal insulation and heat insulation functions, and a manufacturing method thereof. Background Art

[0002] When pipes (especially water pipes) are used in outdoor environments, they are susceptible to aging due to exposure to the sun in the summer, freezing in the winter, and the need to keep hot water warm.

[0003] The mainstream water pipes currently in use are generally divided into metal and plastic pipes. Metal pipes include galvanized iron, stainless steel, copper, and aluminum pipes, while plastic pipes are generally made of PPR, PE, or PVC. Metal pipes are not susceptible to sunlight when used outdoors, but are particularly vulnerable to freezing. Iron pipes (generally galvanized pipes) are prone to rust and have a short service life, while aluminum, copper, and stainless steel pipes are more expensive. Plastic pipes are currently more common, cost-effective, and easy to install. However, when used outdoors, they are not only vulnerable to sunlight, high temperatures, but also to freezing. Due to their instability and susceptibility to aging, their service life is also relatively short.

[0004] Currently, all kinds of water pipes are afraid of freezing when used in winter. The existing anti-freeze measures generally involve adding additional insulation cotton, wrapping with tin foil or aluminum foil after the pipes are installed. This insulation method is also used for hot water pipes, but the construction is relatively troublesome, the appearance consistency and aesthetics of the installed pipes are not high, and the service life is not significantly increased. Summary of the Invention

[0005] The present invention aims to provide a multi-layered, sun-proof, anti-freeze, thermally insulating, and heat-insulating pipe with a carapace structure and a method for manufacturing the same. This approach addresses the existing technical issues of various commonly used pipes, such as their sensitivity to sunlight and freezing, aging, complex insulation, and unsightly appearance. This solution enables the pipe to simultaneously provide sun protection, anti-freeze, thermal insulation, and aesthetics, significantly extending its service life.

[0006] In order to solve the technical problems of sun protection, antifreeze and thermal insulation during the use of pipelines, the present invention provides a multi-layer structured shelled pipeline with sun protection, antifreeze and thermal insulation functions, comprising a base material inner tube, a metal outer tube fixedly sleeved on the outside of the base material inner tube, the length of the metal outer tube being slightly shorter than the length of the base material inner tube, and the inner diameter of the metal outer tube being larger than the outer diameter of the base material inner tube.

[0007] Preferably, a temperature-resistant layer is fixedly provided between the substrate inner tube and the metal outer tube, and the temperature-resistant layer is made by uniformly coating a temperature-resistant and antifreeze coating on the inner wall of the metal outer tube.

[0008] Preferably, an isolation layer and a heat-insulating layer are fixedly sleeved in sequence between the inner tube of the substrate and the temperature-resistance layer.

[0009] Preferably, the base material inner tube is a PPR tube or a stainless steel tube.

[0010] Preferably, the metal outer tube is a thin-walled metal tube.

[0011] Preferably, the isolation layer can be made of plastic film, grease, wax or powder material.

[0012] Preferably, the heat insulation layer can be made of foamed filling material.

[0013] Preferably, pipelines or electric tracing devices can also be added to the heat insulation layer.

[0014] Another technical solution provided by the present application is: A manufacturing method of a multi-layer structure with a sunscreen, anti-freezing, heat insulation and heat preservation function and a pipe with a crust, comprising the steps of: Using an ordinary water pipe as the base material inner tube; Using a thin-walled metal tube slightly shorter than the base material inner tube as the metal outer tube, the inner diameter of the metal outer tube being larger than the outer diameter of the base material inner tube; Spraying a temperature-resistant and anti-freezing coating on the inner wall of the formed circular tube of the metal outer tube with a pipeline inner wall spraying machine to form a uniform temperature-resistant coating and drying it for later use. The thickness of the coating is controlled by spraying once or multiple times according to the use environment; Uniformly applying grease, paraffin or talcum powder-like powder on the outer wall of the base material inner tube or wrapping it with a plastic film to form an isolation layer; Sleeving several gear-shaped positioning brackets outside the base material inner tube covered with the isolation layer and distributing them at equal distances for positioning the middle space distance between the base material inner tube and the metal outer tube; Sleeving the metal outer tube with the dried temperature-resistant coating outside the base material inner tube equipped with the gear-shaped positioning brackets, and placing a perforated ring-shaped plug at each end of the metal outer tube flush with the two ends of the metal outer tube for blocking the foamed filling material; Using a glue injector to inject the foamed filling material into the middle space distance between the base material inner tube and the metal outer tube until the cavity between the outer wall of the base material inner tube and the inner wall of the metal outer tube is filled. After the foamed filling material dries, it becomes a finished sunscreen, anti-freezing, heat-insulating and heat-preserving pipe with a crust.

[0015] Another technical solution provided by the present application is: An installation method of a multi-layer structure with a sunscreen, anti-freezing, heat insulation and heat preservation function and a pipe with a crust, comprising the steps of: Cutting the pipe to the required length during installation; Peeling off the heat insulation layer, temperature-resistant layer and the metal outer tube for sunscreen protection outside the pipeline isolation layer at a few centimeters from the pipe end connection, and then it can be butt-connected and installed with pipe fittings. After the docking installation is completed, the exposed part of the pipe fitting joint is covered with two closed joint sheaths.

[0016] Applying coatings, changing colors, laminating films, or packaging on the finished pipes manufactured according to this technology all fall within the scope of application and protection of this technology.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention provides a pipeline with a multi-layer structure having sun protection, freeze resistance, heat insulation, and heat preservation functions and a manufacturing method thereof. For the first time, a metal outer pipe is used as a protective shell in a pipeline with a layered structure, and a temperature-resistant layer is added to the pipeline product for the first time. The pipeline simultaneously has the capabilities of sun protection, freeze resistance, heat insulation, and heat preservation. Due to the use of the metal outer pipe, the internal structure can be better protected, further extending the overall service life of the pipeline. It makes the installation of pipelines that require sun protection, freeze resistance, heat insulation, and heat preservation functions more convenient. The appearance of the installed pipelines has high consistency, improving the aesthetics. Since no additional heat preservation is required, the labor cost is reduced, the complexity and waste of materials are reduced, which is beneficial to environmental protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure layering of the present invention; Figure 2 It is a schematic diagram of the gear-shaped positioning bracket of the present invention; Figure 3 It is one of the schematic diagrams of the perforated ring-shaped plug of the present invention; Figure 4 It is the second schematic diagram of the perforated ring-shaped plug of the present invention.

[0019] Reference numerals: 1, base material inner pipe; 2, isolation layer; 3, heat preservation layer; 4, temperature-resistant layer; 5, metal outer pipe. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] In the description of this application, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined. In all the directional indications (such as up, down, left, right, front, back, top, bottom...) in the embodiments of this application, they are only used to explain the relative position relationship and movement conditions between components in a specific posture (as shown in the drawings). If this specific posture changes, then the directional indications will also change accordingly. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or Internet of Things terminal that includes a series of steps or units is not limited to the listed steps or units, but optionally further includes steps or units not listed, or optionally further includes other steps or units inherent to these processes, methods, products, or Internet of Things terminals.

[0021] In addition, the mention of "embodiment" in this text means that the specific features, structures, or characteristics described in connection with the embodiment may be included in at least one embodiment of the present application. The appearance of this phrase at various positions in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0022] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts belong to the scope protected by the present application.

[0023] The design principle of the present invention is a finished product composed of five layers in total, including an isolation layer, a thermal insulation layer, a temperature-blocking layer, and a metal outer pipe for sun protection, which are added outside the pipe body based on the existing pipeline. Various commonly used pipelines can be made into a sun-proof, anti-freezing, heat-insulating and isolating pipeline with a crust by adding these several coatings outside the outer layer. Applying coatings, changing colors, laminating, or packaging on the finished pipe made according to this technology all belong to the application and protection scope of this technology.

[0024] Embodiment 1 As Figure 1 shown, the present invention provides a pipeline with a crust having a sun-proof, anti-freezing, heat-insulating and heat-isolating function with a multi-layer structure, including a base material inner pipe 1. The base material inner pipe 1 is a commonly used PPR pipe or stainless steel pipe. A metal outer pipe 5 is fixedly sleeved outside the base material inner pipe 1. The metal outer pipe 5 is a thin-walled metal pipe. The length of the metal outer pipe 5 is slightly shorter than the length of the base material inner pipe 1, and the inner diameter of the metal outer pipe 5 is larger than the outer diameter of the base material inner pipe 1.

[0025] Furthermore, a temperature-blocking layer 4 is fixedly arranged between the base material inner pipe 1 and the metal outer pipe 5. The temperature-blocking layer 4 is made by uniformly coating a temperature-blocking and anti-freezing coating on the inner wall of the metal outer pipe 5.

[0026] Furthermore, an isolation layer 2 and a thermal insulation layer 3 are sequentially and fixedly sleeved between the base material inner pipe 1 and the temperature-blocking layer 4.

[0027] Furthermore, the isolation layer 2 can be made of plastic film, grease, wax or powder material. The thermal insulation layer 3 can be made of foaming filling material. A pipeline or an electric tracing device can also be added to the thermal insulation layer 3.

[0028] Embodiment 2 As Figures 2 - 4As shown in the figure, the present invention provides a manufacturing method of a pipe with a crust, having a multilayer structure with functions of sun protection, anti-freezing, heat preservation and heat insulation. First, prepare materials: Use ordinary water pipes as the base material (commonly used PPR pipes and stainless steel water pipes); use thin-walled metal pipes with a length slightly shorter than the inner pipe of the existing base material as the outer pipe, and the inner diameter of the metal outer pipe is significantly larger than the outer diameter of the base material inner pipe (considering cost and construction convenience, the outer pipe material is selected as aluminum pipe or stainless steel pipe); two perforated ring-shaped plugs (generally made of plastic); several gear-shaped positioning brackets (generally made of plastic); temperature-resistant and anti-freezing coating; foaming filling material (generally foamed polyurethane); isolation layer (which can be plastic film, grease, wax and powder).

[0029] The manufacturing method steps are as follows: Use ordinary water pipes as the inner pipe of the base material; Use thin-walled metal pipes with a length slightly shorter than the inner pipe of the base material as the metal outer pipe, and the inner diameter of the metal outer pipe is larger than the outer diameter of the base material inner pipe; Spray the temperature-resistant and anti-freezing coating on the inner wall of the formed round pipe of the metal outer pipe with a pipeline inner wall spraying machine to form a uniform temperature-resistant coating and dry it for later use. The thickness of the coating is controlled by spraying once or multiple times according to the usage environment; Evenly apply grease, paraffin or talcum powder-like powder on the outer wall of the inner pipe of the base material or wrap it with a plastic film to form an isolation layer; Set several gear-shaped positioning brackets outside the inner pipe of the base material with the isolation layer covered, and distribute them at equal distances to position the middle space between the inner pipe of the base material and the metal outer pipe; Put the metal outer pipe with the dried temperature-resistant coating on the outside of the inner pipe of the base material equipped with gear-shaped positioning brackets, and place a perforated ring-shaped plug at each end of the metal outer pipe flush with the two ends of the metal outer pipe to block the foaming filling material; Use a glue injector to inject the foaming filling material into the middle space between the inner pipe of the base material and the metal outer pipe until the cavity between the outer wall of the inner pipe of the base material and the inner wall of the metal outer pipe is filled. After the foaming filling material dries, it becomes a finished product of a sun-protective, anti-freezing and heat-insulating pipe with a crust.

[0030] Example three, The present invention provides an installation method of a pipe with a crust having a multilayer structure with functions of sun protection, anti-freezing, heat preservation and heat insulation, including the steps: The two ends of the inner pipe of the base material are slightly longer than the metal outer pipe by 2 - 5 cm, which is convenient for connection and installation during use. When installing, cut the pipe according to the required length; At a few centimeters from the pipe end connection, use a knife and scissors to strip off the insulation layer, temperature-resistant layer and the metal outer pipe that plays a sun protection role outside the pipeline isolation layer, and then it can be butt-connected and installed with pipe fittings. It is applicable to metal pipes and plastic pipes without changing the original usage and connection methods of the pipe fittings. After the docking installation is completed, the exposed part of the pipe fitting joint is covered with two closing joint sheaths, and finished products of such joint sheaths are available on the market.

[0031] The finished pipe made in this application consists of five layers in total, namely a base material inner pipe, an isolation layer, a heat insulation layer, a temperature resistance layer, and a metal outer pipe for sun protection. The outermost layer, the metal outer pipe for sun protection, uses a thin-walled metal pipe. The metal outer pipe has a certain hardness and can maintain its shape without deformation. Due to its thin-walled feature, it is easy to cut and construct. The material used is not easily corroded. When used in outdoor environments, it is not afraid of high-temperature exposure, can protect the pipe structure and effectively extend the service life, playing the role of sun protection and long-term protection. The temperature resistance layer coated on the inner wall of the metal outer pipe adheres to the inner wall of the outer pipe and can effectively block the conduction of external cold and hot temperatures inward, mainly playing the role of anti-freezing. The foamed filling layer is relatively thick and is filled between the inner pipe and the outer pipe shell, which can enhance the compressive strength of the outer pipe and the inner pipe, further strengthening the anti-freezing effect of the pipe while having heat insulation. The isolation layer is located between the outer wall of the base material inner pipe and the heat insulation layer. Its main function is to easily peel off the heat insulation layer, temperature resistance layer, and metal outer pipe on the outer layer of the pipe head connection from the base material inner pipe during construction and pipe fitting docking installation. The finished product is applicable to indoor and outdoor pipes, hot water systems, etc.

[0032] A water pipe with sun protection, anti-freezing, and heat insulation functions, which consists of five layers in total, namely a base material inner pipe, an isolation layer, a heat insulation layer, a temperature resistance layer, and a metal outer pipe for sun protection, provided in this application. According to different regional requirements, one of the structures between the inner and outer pipes can be reduced. Without changing the structure and method, the materials used between the inner and outer pipes can be adjusted. According to environmental needs, pipelines or electric tracing devices can be added to the heat insulation layer.

[0033] The embodiment mainly describes straight pipes. For relatively long coiled pipes, in this way, the outer pipe can be changed into a corrugated form, and the same purpose can also be achieved.

[0034] A multi-layer structure pipe with a shell and having sun protection, anti-freezing, and heat insulation functions and its manufacturing method provided in this application. For the first time, a metal outer pipe is used as a protective shell in a layered-structured pipe, and for the first time, a temperature resistance layer is added to the pipe product. The pipe simultaneously has the abilities of sun protection, anti-freezing, and heat insulation. Due to the use of the metal outer pipe, the internal structure can be better protected, further extending the overall service life of the pipe. It makes the installation of pipes that require sun protection, anti-freezing, and heat insulation functions more convenient. The appearance consistency of the installed pipes is high, improving the aesthetics. Since no additional heat insulation is required, the labor cost is reduced, the complexity and waste of materials are reduced, which is beneficial to environmental protection.

[0035] The basic principles of the present application have been described above in connection with specific embodiments. However, it should be noted that the advantages, benefits, effects, etc. mentioned in the present application are only examples and not limitations. It cannot be considered that these advantages, benefits, effects, etc. are essential for each embodiment of the present application. Additionally, the specific details disclosed above are only for illustrative and facilitating understanding purposes, rather than limitations. These details do not limit the present application to necessarily implement using the above specific details. The above description is provided to enable any person skilled in the art to make or use the present application. Various modifications to these aspects are very obvious to those skilled in the art, and the general principles defined herein can be applied to other aspects without departing from the scope of the present application. Therefore, the present application is not intended to be limited to the aspects shown herein, but rather to the broadest scope consistent with the principles and novel features claimed herein.

[0036] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

[0037] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pipeline with a crust and having the functions of sun protection, freeze resistance, heat preservation and heat insulation in a multi-layer structure, comprising a base material inner pipe (1), characterized in that, A metal outer tube (5) is fixedly sleeved outside the base material inner tube (1); the length of the metal outer tube (5) is slightly shorter than that of the base material inner tube (1); and the inner diameter of the metal outer tube (5) is larger than the outer diameter of the base material inner tube (1).

2. The multi-layer structure of the pipeline with a carapace having sunscreen, anti-freezing, heat preservation and heat insulation functions according to claim 1, wherein, A temperature-resistance layer (4) is fixedly provided between the substrate inner tube (1) and the metal outer tube (5); the temperature-resistance layer (4) is made by uniformly coating a temperature-resistance and antifreeze coating on the inner wall of the metal outer tube (5).

3. The multi-layer structured pipe with sun protection, anti-freezing, heat preservation and heat insulation functions according to claim 2, characterized in that, An isolation layer (2) and a thermal insulation layer (3) are fixedly sleeved in sequence between the base material inner tube (1) and the temperature-resistance layer (4).

4. A multi-layer structure with a sunscreen, anti-freezing, heat preservation and heat insulation function of a pipe with a crust, characterized in that, The base material inner tube (1) is a PPR tube or a stainless steel tube.

5. A multi-layer structure with a sunscreen, anti-freezing, heat preservation and heat insulation function, the belted carapace pipeline according to claim 1, characterized in that, The metal outer tube (5) is a thin-walled metal tube.

6. A multi-layer structured pipe with a shell and having functions of sun protection, anti-freezing, heat preservation and heat insulation according to claim 3, characterized in that, The isolation layer (2) can be made of plastic film, grease, wax or powder material.

7. A multi-layer structure with a sunscreen, anti-freezing, heat preservation and heat insulation function of a pipeline with a crust, characterized in that, The thermal insulation layer (3) may be made of a foam filling material.

8. A multi-layer structured pipe with a carapace having sun protection, anti-freezing, heat preservation and heat insulation functions according to claim 3, characterized in that, Pipelines or electric heating devices may also be added to the thermal insulation layer (3).

9. A manufacturing method of a pipeline with a crust and having the functions of sun protection, freeze resistance, heat preservation and heat insulation for a multi-layer structure, characterized in that, Including steps: Ordinary water pipes are used as the inner pipe of the base material; A thin-walled metal tube slightly shorter than the substrate inner tube is used as the metal outer tube, and the inner diameter of the metal outer tube is larger than the outer diameter of the substrate inner tube; Spraying heat-resistant and antifreeze coating on the inner wall of the metal outer tube formed round tube with a pipe inner wall sprayer to form a uniform heat-resistant coating, which is then dried for standby use. The coating thickness is controlled by spraying once or multiple times according to the use environment; Evenly apply grease, paraffin or talcum powder on the outer wall of the inner tube of the substrate or cover it with a plastic film to form an isolation layer; Several gear-shaped positioning brackets are sleeved on the outer surface of the substrate inner tube covered with the isolation layer, and are distributed at equal intervals to locate the space between the substrate inner tube and the metal outer tube; The metal outer tube with the heat-resistant coating dried is placed on the outer surface of the substrate inner tube equipped with the gear-shaped positioning bracket, and a ring-shaped plug with a hole is placed at each end of the metal outer tube to be flush with the ends of the metal outer tube to seal the foam filling material; Use a glue injection machine to inject the foam filling material into the space between the substrate inner tube and the metal outer tube until the cavities in the outer wall of the substrate inner tube and the inner wall of the metal outer tube are filled. After the foam filling material dries, it becomes a finished sun-proof, anti-freeze and heat-insulating shell tube.

10. An installation method of a pipeline with a crust and having the functions of sun protection, freeze resistance, heat preservation and heat insulation for a multi-layer structure, characterized in that, Including steps: During installation, cut the pipe to the required length; A few centimeters from the pipe end, remove the insulation layer, temperature resistance layer and the metal outer pipe that serves as a sun protection layer other than the pipe isolation layer, and then you can dock and install the pipe fittings. After the butt-joint installation is completed, the exposed parts of the pipe joints are covered with two pieces of closing joint sleeves.

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