High-rigidity heat-resistant PP composite plastic pipe

Abstract

The utility model discloses a kind of high-rigidity heat-resistant PP composite plastic pipes, including base layer, the outside of the base layer is equipped with first protective layer, the inside of the base layer is equipped with second protective layer, the outside of the base layer is fixedly connected with multiple equidistance axial array distribution's reinforcing ring, the inside of the base layer is radially embedded with multiple equidistance distribution's heat conduction piece.The utility model is by setting first protective layer and second protective layer in the inside and outside of base layer, the inside and outside high temperature of pipe has played the role of isolation, to improve the high-temperature resistance of pipe, and multiple reinforcing rings are set on the outside of pipe, which improves the rigidity of the overall structure of pipe, and then avoids the deformation cracking of pipe under high temperature and high pressure environment, setting heat bar and first thermosensitive pigment layer, and setting second thermosensitive pigment layer on the outside of reinforcing ring, the temperature of pipe internal fluid and pipe external environment is visually observed.

Description

Technical Field

[0001] This utility model relates to the field of plastic pipe technology, and in particular to a high-rigidity, heat-resistant PP composite plastic pipe. Background Technology

[0002] PP pipe is a non-toxic, hygienic, high-temperature resistant, and recyclable pipe type, mainly used in indoor hot and cold water supply systems in buildings, and also widely used in heating systems. PP pipe is characterized by its corrosion resistance, wear resistance, scale resistance, reduced vibration and noise, freeze-thaw resistance, condensation prevention, low heat loss, simple installation, and long service life. Connection methods include welding, edge welding, and connection with dissimilar materials.

[0003] With the rapid development of construction, municipal engineering, chemical engineering, and other fields, the performance requirements for plastic pipes are increasing, especially in high-temperature, high-pressure, and corrosive media environments. Traditional polypropylene (PP) pipes, due to their insufficient rigidity and poor heat resistance, are unable to meet the demands of these harsh conditions. Traditional PP pipes also suffer from low flexural modulus and poor heat resistance (Vicat softening point ≤120℃), making them prone to creep deformation and cracking under long-term pressure or high-temperature conditions. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a high-rigidity, heat-resistant PP composite plastic pipe.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a high-rigidity heat-resistant PP composite plastic pipe, comprising a base layer, a first protective layer on the outside of the base layer, a second protective layer on the inside of the base layer, a plurality of equidistant axially arrayed reinforcing rings fixedly connected to the outside of the base layer, and a plurality of equidistantly distributed heat-conducting components embedded radially inside the base layer.

[0006] As a further description of the above technical solution: the heat-conducting component includes a heat-conducting rod radially embedded in the base layer, with both ends of the heat-conducting rod penetrating the first protective layer and the second protective layer respectively; by providing the heat-conducting component, it is convenient to conduct the temperature inside the pipe outward.

[0007] As a further description of the above technical solution: the outer edge of the heat-conducting rod is coated with a heat-insulating coating, and the top of the heat-conducting rod is coated with a first thermosensitive pigment layer; by coating the top of the heat-conducting rod with a first thermosensitive pigment layer, it is convenient to visually observe the temperature on the heat-conducting rod, and thus it is convenient to visually observe the temperature of the pipe.

[0008] As a further description of the above technical solution: the first protective layer includes a first nylon layer disposed outside the base layer, and a first anti-oxidation layer is provided outside the first nylon layer; by providing the first protective layer, the heat resistance of the pipe exterior is improved.

[0009] As a further description of the above technical solution: the second protective layer includes a second nylon layer disposed within the base layer, and the interior of the second nylon layer is provided with a second anti-oxidation layer; by providing the second protective layer, the heat resistance inside the pipe is improved.

[0010] As a further description of the above technical solution: a second thermosensitive pigment layer is coated on the outside of the reinforcing ring; by coating the outside of the reinforcing ring with a second thermosensitive pigment layer, it is convenient to visualize and observe the temperature outside the pipe.

[0011] As a further description of the above technical solution: the radial cross-section of the reinforcing ring is semi-circular; by setting the reinforcing ring as semi-circular, the smoothness of pipeline laying is improved and the frictional resistance of the reinforcing ring edge is reduced during pipeline laying.

[0012] This utility model has the following beneficial effects: Compared with existing technologies, this high-rigidity heat-resistant PP composite plastic pipe, by setting a first protective layer and a second protective layer on the inner and outer sides of the base layer, respectively, isolates the pipe from the high temperatures inside and outside, thereby improving the pipe's high-temperature resistance. The addition of multiple reinforcing rings on the outside of the pipe increases the rigidity of the overall pipe structure, thus preventing the pipe from deforming and cracking under high temperature and high pressure environments. The installation of heat-conducting rods and a first thermosensitive pigment layer, and a second thermosensitive pigment layer on the outside of the reinforcing rings, allows for visual observation of the temperature of the fluid inside the pipe and the external environment. Attached Figure Description

[0013] Figure 1 This is a three-dimensional view of the overall structure of a high-rigidity, heat-resistant PP composite plastic pipe proposed in this utility model; Figure 2 This utility model proposes a high-rigidity, heat-resistant PP composite plastic pipe. Figure 1 Enlarged view of the structure at point A in the middle; Figure 3 This is a side sectional view of the overall structure of a high-rigidity, heat-resistant PP composite plastic pipe proposed in this utility model.

[0014] Legend: 1. Reinforcing ring; 2. Heat-conducting rod; 3. First anti-oxidation layer; 4. First nylon layer; 5. Base layer; 6. Second nylon layer; 7. Second anti-oxidation layer; 8. Heat-insulating coating; 9. First thermosensitive pigment layer; 10. Second thermosensitive pigment layer. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Reference Figures 1 to 3 This utility model provides a high-rigidity, heat-resistant PP composite plastic pipe, comprising a base layer 5, a first protective layer on the outside of the base layer 5, a second protective layer on the inside of the base layer 5, and multiple equidistantly axially arrayed reinforcing rings 1 fixedly connected to the outside of the base layer 5. Multiple equidistantly distributed heat-conducting components are radially embedded inside the base layer 5. The first protective layer includes a first nylon layer 4 disposed on the outside of the base layer 5, and a first anti-oxidation layer 3 disposed on the outside of the first nylon layer 4. By setting the first protective layer, the heat resistance of the pipe exterior is improved. The second protective layer includes a second nylon layer 6 disposed within the base layer 5, and a second anti-oxidation layer 7 disposed inside the second nylon layer 6. By setting the second protective layer, the heat resistance of the pipe interior is improved. Both the first nylon layer 4 and the second nylon layer 6 are made of glass fiber reinforced nylon. The heat-conducting component includes a heat-conducting rod 2 radially embedded in the base layer 5, with both ends of the heat-conducting rod 2 penetrating the first protective layer and the second protective layer, respectively. By setting the heat-conducting component, it is convenient to conduct the temperature inside the pipe outward. The outer edge of the heat-conducting rod 2 is coated with a heat-insulating coating 8, and the top of the heat-conducting rod 2 is coated with a first thermosensitive pigment layer 9. By coating the top of the heat-conducting rod 2 with the first thermosensitive pigment layer 9, it is convenient to visually observe the temperature on the heat-conducting rod 2, and thus facilitate the visual observation of the temperature of the pipe. The temperature of the fluid inside the pipe is transferred to the heat-conducting rod 2. The heat-insulating coating 8 isolates the temperature of the heat-conducting rod 2, preventing the temperature of the heat-conducting rod 2 from dissipating outward. The temperature of the heat-conducting rod 2 will be transferred to the first thermosensitive pigment layer 9 on the top surface of the heat-conducting rod 2, and the first thermosensitive pigment layer 9 begins to change color when heated. The outer surface of the reinforcing ring 1 is coated with a second thermosensitive pigment layer 10. By coating the outer surface of the reinforcing ring 1 with the second thermosensitive pigment layer 10, it is convenient to visualize the temperature outside the pipe. The radial cross section of the reinforcing ring 1 is semi-circular. By setting the reinforcing ring 1 to be semi-circular, the smoothness of the pipe laying is improved and the frictional resistance of the edge of the reinforcing ring 1 is reduced during pipe laying.

[0017] By setting a first protective layer and a second protective layer on the inside and outside of the base layer 5 respectively, the high temperature inside and outside of the pipe is isolated, thereby improving the high temperature resistance of the pipe. Setting multiple reinforcing rings 1 on the outside of the pipe improves the rigidity of the overall structure of the pipe, thereby preventing the pipe from deforming and cracking under high temperature and high pressure. Setting heat-conducting rods 2 and a first thermosensitive pigment layer 9, and setting a second thermosensitive pigment layer 10 on the outside of the reinforcing rings 1, allows for visual observation of the temperature of the fluid inside the pipe and the external environment of the pipe.

[0018] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-rigidity, heat-resistant PP composite plastic pipe, comprising a base layer (5), characterized in that: The base layer (5) has a first protective layer on the outside and a second protective layer on the inside. Multiple reinforcing rings (1) are fixedly connected to the outside of the base layer (5) in an equidistant axial array. Multiple heat-conducting components are radially embedded in the base layer (5).

2. The high-rigidity, heat-resistant PP composite plastic pipe according to claim 1, characterized in that: The heat-conducting component includes a heat-conducting rod (2) radially embedded in the base layer (5), with both ends of the heat-conducting rod (2) penetrating the first protective layer and the second protective layer, respectively.

3. The high-rigidity, heat-resistant PP composite plastic pipe according to claim 2, characterized in that: The outer edge of the heat-conducting rod (2) is coated with a heat-insulating coating (8), and the top of the heat-conducting rod (2) is coated with a first thermosensitive pigment layer (9).

4. The high-rigidity, heat-resistant PP composite plastic pipe according to claim 1, characterized in that: The first protective layer includes a first nylon layer (4) disposed outside the base layer (5), and a first antioxidant layer (3) is provided outside the first nylon layer (4).

5. The high-rigidity, heat-resistant PP composite plastic pipe according to claim 1, characterized in that: The second protective layer includes a second nylon layer (6) disposed within the base layer (5), and the interior of the second nylon layer (6) is provided with a second antioxidant layer (7).

6. The high-rigidity, heat-resistant PP composite plastic pipe according to claim 1, characterized in that: The outer surface of the reinforcing ring (1) is coated with a second thermosensitive pigment layer (10).

7. The high-rigidity, heat-resistant PP composite plastic pipe according to claim 1, characterized in that: The radial cross-section of the reinforcing ring (1) is semi-circular.

Images