Novel anti-freezing PPR polyurethane integrated thermal insulation pipe
By using a polyurethane insulation layer, a self-regulating heating tape, and an inner tube structure, combined with a corrosion-resistant inner tube, the problem of the inability to monitor the temperature in real time in existing insulation pipes has been solved, achieving automatic temperature control and quick connection, thus improving the stability and convenience of the insulation pipe.
Patent Information
- Application Number
- CN202520280586.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-21
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-02-21
AI Technical Summary
Existing insulation pipes cannot monitor temperature in real time and accurately, resulting in the inability to adjust insulation strategies in a timely manner and failing to meet the high-efficiency and stable insulation requirements of modern industrial and civil sectors.
It adopts a polyurethane insulation layer, self-regulating heating tape, and inner tube structure, combined with a corrosion-resistant inner tube, to achieve automatic temperature control and efficient insulation. Quick connection and sealing are achieved through a clamping block and clamping plate structure.
It achieves automatic temperature control, quick connection, and efficient insulation of the insulation pipe, improving the stability and convenience of the insulation pipe, and making it suitable for complex environmental conditions.
Smart Images

Figure CN223825890U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of thermal insulation pipe technology, and in particular to a novel antifreeze PPR polyurethane integrated thermal insulation pipe. Background Technology
[0002] With the continuous growth of energy demand and increasingly stringent requirements for energy conservation and environmental protection, the requirements for pipeline insulation performance are becoming more and more stringent in many fields such as heating and cooling. This type of insulated pipe combines the corrosion resistance of PPR pipe, the excellent insulation performance of polyurethane insulation layer, and the intelligent temperature control function of self-regulating heating tape. It aims to provide efficient and stable insulation solutions for various pipeline systems to reduce heat or cold loss, improve energy utilization efficiency, and adapt to the needs of different environments and operating conditions.
[0003] In existing technologies, insulated pipes mainly employ a combination of various insulation materials. Common insulation materials include rock wool and glass wool, which form an insulation layer through the air between the fibers, utilizing the low thermal conductivity of air to prevent heat transfer. Structurally, these insulation materials are typically tightly wrapped around an inner metal or plastic pipe, using multiple layers of protection to reduce heat leakage. Temperature control largely relies on external temperature monitoring equipment, such as multiple temperature sensors installed around the pipe, and then manual or simple control systems are used to adjust the temperature of the medium being transported. Connection methods mostly employ traditional methods such as welding, threaded connections, or flange connections to ensure the pipe's sealing and integrity.
[0004] However, existing technologies have a significant problem: despite employing various insulation measures, the insulation pipes cannot monitor their own temperature in real time and accurately during actual use. This means that if an anomaly occurs during the operation of the pipeline system, such as excessively rapid local heat loss or sudden changes in the external ambient temperature, the existing insulation pipes cannot respond in time, resulting in an inability to adjust the insulation strategy promptly. Ultimately, due to the lack of temperature monitoring, the insulation pipes cannot always be in optimal working condition, leading to low overall efficiency and failing to meet the demands of modern industrial and civil applications for efficient and stable insulation. Therefore, a novel antifreeze PPR polyurethane integrated insulation pipe is proposed to solve the above problems. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a novel antifreeze PPR polyurethane integrated insulation pipe, which aims to improve the problem that the insulation pipes in the prior art cannot monitor the temperature, resulting in low insulation efficiency.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A novel antifreeze PPR polyurethane integrated insulation pipe includes: an outer protective pipe.
[0008] The outer protective tube is used to support the entire pipeline.
[0009] A polyurethane insulation layer, the outer wall of which is fixedly connected to the inside of the outer protective tube, effectively prevents heat transfer.
[0010] The inner tube has its sidewalls fixedly connected to the inner wall of the polyurethane insulation layer. The inner tube has good corrosion resistance and relatively low cost.
[0011] Self-regulating mixing tape, the sidewalls of which are fixedly connected to the inside of the polyurethane insulation layer, is used to control temperature.
[0012] As a further description of the above technical solution:
[0013] The inner tube sidewall is fixedly connected to the self-regulating heating tape sidewall, and the self-regulating heating tape outer wall is disposed on the inner wall of the outer protective tube.
[0014] As a further description of the above technical solution:
[0015] An anchor pipe is slidably connected inside the inner tube, and a first connecting pipe is fixedly connected to one end of the anchor pipe;
[0016] As a further description of the above technical solution:
[0017] A first locking block is fixedly connected to the outer wall of the first connecting pipe, and a first locking plate is fixedly connected to the outer wall of the first connecting pipe;
[0018] As a further description of the above technical solution:
[0019] A sealing tube is fixedly connected to the inner wall of the first connecting tube, and a second connecting tube is provided at one end of the first connecting tube.
[0020] As a further description of the above technical solution:
[0021] A second clamping block is fixedly connected to the outer wall of the second connecting pipe, and a second clamping plate is fixedly connected to the outer wall of the second connecting pipe;
[0022] As a further description of the above technical solution:
[0023] The inner wall of the second card plate is disposed on the outer wall of the first card block, and the inner wall of the first card plate is disposed on the outer wall of the second card block.
[0024] This utility model has the following beneficial effects:
[0025] 1. In this utility model, the heat transfer is effectively reduced by the polyurethane insulation layer, the temperature is controlled by the self-regulating heating tape, and the wear resistance of the insulation pipe is improved by the inner tube insulation pipe, thus achieving the effect of a stable and efficient insulation pipe. This solves the problem that the insulation pipe in the prior art cannot monitor the temperature, resulting in low insulation pipe efficiency, and improves the practicality of the PPR polyurethane integrated insulation pipe.
[0026] 2. In this utility model, rotating the first connecting pipe insulation pipe causes the first clamping plate insulation pipe on the outer wall to rotate. The rotation of the first clamping plate insulation pipe locks the second clamping block insulation pipe on the outer wall of the second connecting pipe insulation pipe. At the same time, it also locks the second clamping plate insulation pipe on the outer wall of the first clamping block insulation pipe, achieving the effect of quick connection of insulation pipes. This solves the problem that the inability to quickly connect leads to a long connection time for each insulation pipe, causing the entire project to lag behind, and improves the convenience of PPR polyurethane integrated insulation pipe. Attached Figure Description
[0027] Figure 1 This is a three-dimensional schematic diagram of a novel antifreeze PPR polyurethane integrated insulation pipe proposed in this utility model.
[0028] Figure 2 A schematic diagram of the cross-sectional structure of the first connecting pipe of a novel antifreeze PPR polyurethane integrated insulation pipe proposed in this utility model.
[0029] Figure 3 This is a schematic diagram of the cross-sectional structure of the outer protective tube of a novel antifreeze PPR polyurethane integrated insulation pipe proposed in this utility model.
[0030] Legend:
[0031] 1. Outer protective pipe; 2. First connecting pipe; 3. First clamping plate; 4. Second connecting pipe; 5. First clamping block; 6. Sealing pipe; 7. Second clamping block; 8. Second clamping plate; 9. Polyurethane insulation layer; 10. Self-regulating mixing tape; 11. Inner pipe; 12. Anchor pipe. Detailed Implementation
[0032] 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.
[0033] Reference Figure 1 and Figure 3One embodiment of this utility model is a novel antifreeze PPR polyurethane integrated insulation pipe, comprising: an outer protective pipe 1
[0034] Outer protective pipe 1, which is used to support the entire pipeline;
[0035] The polyurethane insulation layer 9 is fixedly connected to the inside of the outer protective tube 1. The polyurethane insulation layer 9 effectively prevents the transfer of heat.
[0036] Inner tube 11, the side wall of inner tube 11 is fixedly connected to the inner wall of polyurethane insulation layer 9. Inner tube 11 has good corrosion resistance and relatively low cost.
[0037] The self-regulating mixing cable 10 is fixedly connected to the inside of the polyurethane insulation layer 9. The self-regulating mixing cable 10 is used to control the temperature. The inner tube 11 is fixedly connected to the side wall of the self-regulating mixing cable 10. The outer wall of the self-regulating mixing cable 10 is set on the inner wall of the outer protective tube 1.
[0038] Specifically, during the use of the insulation pipe, friction is generated when the liquid flows inside the pipe. To reduce this friction and improve the wear resistance of the insulation pipe, an inner pipe 11 is used. The inner pipe 11 is made of high-performance wear-resistant material, which can effectively reduce the frictional resistance during liquid flow and extend the service life of the pipe. At the same time, in order to achieve precise temperature control, the insulation pipe is equipped with a self-regulating heating tape 10, which can automatically adjust the output power according to the temperature of the object being heated, eliminating the need for an additional temperature control device, making it convenient and energy-saving. In addition, the insulation pipe also has a polyurethane insulation layer 9, which has excellent insulation performance and can effectively prevent excessive heat loss from the inside, ensuring that the liquid inside the pipe maintains the required temperature. Finally, the outer protective pipe 1 is made of corrosion-resistant material, which can effectively reduce the corrosion of the pipe by the environment, protect the internal structure, and ensure the stability and efficiency of the insulation pipe. The new antifreeze PPR polyurethane integrated insulation pipe not only effectively reduces friction and improves wear resistance, but also achieves automatic temperature control and efficient insulation, making it suitable for various complex environmental conditions.
[0039] Reference Figure 1 and Figure 2 An anchor pipe 12 is slidably connected inside the inner tube 11. A first connecting pipe 2 is fixedly connected to one end of the anchor pipe 12. A first clamping block 5 is fixedly connected to the outer wall of the first connecting pipe 2. A first clamping plate 3 is fixedly connected to the outer wall of the first connecting pipe 2. A sealing pipe 6 is fixedly connected to the inner wall of the first connecting pipe 2. A second connecting pipe 4 is provided at one end of the first connecting pipe 2. A second clamping block 7 is fixedly connected to the outer wall of the second connecting pipe 4. A second clamping plate 8 is fixedly connected to the outer wall of the second connecting pipe 4. The inner wall of the second clamping plate 8 is set on the outer wall of the first clamping block 5. The inner wall of the first clamping plate 3 is set on the outer wall of the second clamping block 7.
[0040] Specifically, when using the new type of antifreeze PPR polyurethane integrated insulation pipe, the operator first initiates the connection process by rotating the first connecting pipe 2. Under applied force, the first connecting pipe 2 activates the first clamping plate 3 on its outer wall. The first clamping plate 3 clamps the inner wall against the outer wall of the second clamping block 7, ensuring a stable connection. Next, the operator rotates the second connecting pipe 4, which, under force, rotates the second clamping plate 8 on its outer wall. The rotation of the second clamping plate 8 clamps the inner wall against the outer wall of the first clamping block 5, further enhancing the stability of the connection. Through the tight connection between the first connecting pipe 2 and the second connecting pipe 4, the sealing pipe 6 on the inner wall is mutually compressed, achieving a sealing effect. This not only ensures rapid connection of the insulation pipe but also improves the sealing and insulation performance of the connection, effectively preventing heat loss and condensation formation, making it particularly suitable for pipeline insulation needs in cold environments.
[0041] Working principle: When using the new type of antifreeze PPR polyurethane integrated insulation pipe, firstly, by rotating the first connecting pipe 2, the first connecting pipe 2 is forced to move the first clamping plate 3 on the outer wall. Then, the first clamping plate 3 will clamp the inner wall on the outer wall of the second clamping block 7. Then, by rotating the second connecting pipe 4, the second connecting pipe 4 is forced to move the second clamping plate 8 on the outer wall. Then, the rotation of the second clamping plate 8 will clamp the inner wall on the outer wall of the first clamping block 5. Then, through the connection between the first connecting pipe 2 and the second connecting pipe 4, the sealing pipe 6 on the inner wall will be squeezed against each other to seal it, thus achieving the effect of rapid connection of the insulation pipe.
[0042] Then, during the use of the insulation pipe, due to the friction during the liquid flow, the inner tube 11 reduces the friction, thereby improving the wear resistance of the insulation pipe. Then, the self-regulating heating tape 10 controls the temperature and can automatically adjust the output power according to the temperature of the object being heated, without the need for an additional temperature control device. It is convenient to use and energy-saving. Then, the polyurethane insulation layer 9 prevents the loss of excessive internal temperature, and the outer protective tube 1 reduces environmental corrosion, thus achieving the effect of a stable and efficient insulation pipe.
[0043] 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 novel antifreeze PPR polyurethane integrated insulation pipe, characterized in that, include: Outer protective tube (1) Outer protective tube (1), the outer protective tube (1) is used to support the entire pipeline; A polyurethane insulation layer (9) is fixedly connected to the outside of the outer protective tube (1). The polyurethane insulation layer (9) effectively prevents the transfer of heat. Inner tube (11), the side wall of which is fixedly connected to the inner wall of polyurethane insulation layer (9), the inner tube (11) has good corrosion resistance and relatively low cost; The self-regulating mixing tape (10) is fixedly connected to the inside of the polyurethane insulation layer (9) on its sidewall. The self-regulating mixing tape (10) is used to control the temperature.
2. The novel antifreeze PPR polyurethane integrated insulation pipe according to claim 1, characterized in that: The inner tube (11) sidewall is fixedly connected to the sidewall of the self-regulating mixing tube (10), and the outer wall of the self-regulating mixing tube (10) is set on the inner wall of the outer protective tube (1).
3. The novel antifreeze PPR polyurethane integrated insulation pipe according to claim 2, characterized in that: An anchor pipe (12) is slidably connected inside the inner tube (11), and a first connecting pipe (2) is fixedly connected to one end of the anchor pipe (12).
4. The novel antifreeze PPR polyurethane integrated insulation pipe according to claim 3, characterized in that: The first connecting pipe (2) has a first locking block (5) fixedly connected to its outer wall, and the first connecting pipe (2) has a first locking plate (3) fixedly connected to its outer wall.
5. The novel antifreeze PPR polyurethane integrated insulation pipe according to claim 4, characterized in that: A sealing tube (6) is fixedly connected to the inner wall of the first connecting tube (2), and a second connecting tube (4) is provided at one end of the first connecting tube (2).
6. The novel antifreeze PPR polyurethane integrated insulation pipe according to claim 5, characterized in that: The second connecting pipe (4) has a second clamping block (7) fixedly connected to its outer wall, and a second clamping plate (8) fixedly connected to its outer wall.
7. A novel antifreeze PPR polyurethane integrated insulation pipe according to claim 6, characterized in that: The inner wall of the second card plate (8) is disposed on the outer wall of the first card block (5), and the inner wall of the first card plate (3) is disposed on the outer wall of the second card block (7).