Novel PERT pipe

Abstract

The utility model relates to the field of pipes, in particular to a novel PERT pipe which comprises a connecting pipe and is characterized in that a pipeline is arranged on the side wall of the connecting pipe in a penetrating mode, an inner groove is formed in the middle of the arc wall of the pipeline, the novel PERT pipe further comprises an installation pipe, the installation pipe is fixedly installed in the middle of the outer arc wall of the connecting pipe, and a plurality of heat dissipation grooves are formed in the side wall of the installation pipe in a penetrating mode. Baffles are symmetrically and fixedly installed on the two sides of the installation pipe, and through holes communicating with the heat dissipation grooves are formed in the side walls of the baffles in a penetrating mode. The novel PERT pipe is provided with the mounting pipe and the heat dissipation grooves, so that the circumferential stress concentration of the mounting pipe is reduced, the external threads are formed in the two ends of the outer arc wall of the mounting pipe, and the mounting pipe is directly connected with metal accessories through the external nuts and the internal threads, so that a pipeline system is simplified, the number of connecting parts is reduced, and the cost and the water leakage risk are reduced; sealing grooves are symmetrically formed in the positions, close to the baffles, of the outer arc wall of the connecting pipe, sealing rings are fixedly installed in the sealing grooves, and the sealing performance when the connecting pipe is connected with other parts is guaranteed through the sealing rings.

Description

Technical Field

[0001] This utility model relates to the field of pipes, and in particular to a novel PERT pipe. Background Technology

[0002] PERT is a high-performance plastic pipe widely used in construction, HVAC, and water supply and drainage due to its excellent temperature resistance, flexibility, and durability. As a core heat transfer element in underfloor heating systems, PERT pipes evenly distribute heat to the floor through hot water circulation, achieving comfortable heating. Compared to PPR pipes, PERT pipes have superior high-temperature resistance, making them suitable for hot water supply systems in homes and hotels. With its advantages of high-temperature resistance, flexibility, safety, reliability, energy saving, and environmental friendliness, PERT pipes have become one of the preferred materials for modern building heating and hot water systems. Especially in the underfloor heating field, its uniform heat dissipation and long lifespan make it an irreplaceable key component. Due to its excellent temperature resistance and corrosion resistance, PERT pipes are commonly used in cold and hot water delivery systems within buildings. Unlike metal pipes, PERT pipes do not rust or scale easily, ensuring water purity and long-term stable operation. PERT pipes have excellent anti-aging properties and a long service life. Furthermore, its high flexibility and impact resistance make it less prone to breakage or deformation, adapting to complex installation environments. When PERT pipes are used in underfloor heating, heat needs to be transferred to the floor efficiently. Poor heat dissipation can lead to uneven room temperature and increased energy consumption. Some fluids require specific temperatures to be maintained, and overheating can lead to degradation or explosion risks. Long-term exposure of PERT pipes to high temperatures (>60°C) will accelerate oxidation and make them brittle. Heat dissipation can extend their lifespan. In industrial heat exchangers, pipe heat dissipation design can reduce the load on the cooling system.

[0003] Chinese patent CN218543463U discloses a scale-resistant and oxygen-barrier PERT pipe. It improves the overall strength of the pipe body by setting a PERT pipe layer, a reinforcing layer, a scale-resistant layer, an oxygen-barrier layer and a protective layer. However, when the pipe is used for heating, it has the problem of poor heat dissipation. In view of this, a new type of PERT pipe is provided. Utility Model Content

[0004] The main objective of this invention is to provide a new type of PERT pipe to solve the problem of poor heat dissipation when pipes are used for heating, as mentioned in related technologies.

[0005] To achieve the above objectives, according to one aspect of the present invention, a novel PERT pipe is provided, comprising a connecting pipe, characterized in that a pipe is provided through the side wall of the connecting pipe, and an inner groove is provided in the middle of the arc wall of the pipe. The pipe further comprises an installation pipe, which is fixedly installed in the middle of the outer arc wall of the connecting pipe. A plurality of heat dissipation grooves are provided through the side wall of the installation pipe, and baffles are symmetrically fixedly installed on both sides of the installation pipe. Through holes communicating with the heat dissipation grooves are provided through the side walls of the baffles, allowing heat to be dissipated from the connecting pipe through the heat dissipation grooves and discharged through the through holes.

[0006] Furthermore, the outer arc wall of the installation pipe is provided with an outer groove, which has a spiral structure.

[0007] Furthermore, several sealing grooves are symmetrically opened on the outer arc wall of the connecting pipe near the baffle.

[0008] Furthermore, a sealing ring is fixedly installed inside the sealing groove, and the sealing ring is made of flexible material.

[0009] Furthermore, the inner groove has a spiral structure.

[0010] Furthermore, the heat dissipation groove has an arc-shaped structure and is filled with a heat dissipation medium.

[0011] Furthermore, external threads are symmetrically provided at both ends of the outer arc wall of the connecting pipe.

[0012] Furthermore, internal threads are symmetrically provided at both ends of the pipe's arc wall.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. This new type of PERT pipe features an installation pipe fixedly mounted on the middle of the outer arc wall of the connecting pipe. The side wall of the installation pipe has several heat dissipation grooves arranged in a ring array. Several baffles are symmetrically fixed to the side wall of the installation pipe, and each baffle has through holes connecting to the heat dissipation grooves. The heat dissipation grooves have an arc-shaped structure. This arc-shaped structure increases the contact area with air and the heat dissipation medium, improving heat exchange capacity. Compared to right-angle grooves, arc-shaped grooves can disperse mechanical stress and prevent crack propagation. The arc-shaped heat dissipation grooves act as a thermal buffer chamber, first absorbing heat from the pipe wall and then dissipating it through convection with the external air via the through holes, forming a periodic heat dissipation cycle. The heat dissipation medium filled in the heat dissipation grooves enhances heat transfer, facilitating heat dissipation. Simultaneously, the heat dissipation grooves reduce circumferential stress concentration in the installation pipe, increasing its strength and lifespan. The installation pipe has a through-hole pipe on its side wall, and internal threads are symmetrically opened at both ends of the through-hole arc wall. External threads are opened at both ends of the outer arc wall of the installation pipe. The installation pipe is directly connected to the metal fittings through the external nut and internal thread to simplify the piping system, reduce the number of connecting parts, reduce costs and the risk of leakage. The outer arc wall of the connecting pipe has symmetrical sealing grooves near the baffle. A sealing ring is fixedly installed in the sealing groove to ensure the sealing of the connecting pipe when connected to other components.

[0015] 2. This new type of PERT pipe features an installation pipe, which is fixedly installed in the middle of the outer arc wall of the connecting pipe. The outer arc wall of the installation pipe has an external groove with a spiral structure. This spiral groove increases the circumferential stiffness of the installation pipe, effectively resisting external compression and dispersing impact energy. The external groove also increases the outer surface area of ​​the installation pipe, improving natural convection heat dissipation and preventing localized overheating caused by concrete encapsulation of the underfloor heating pipes. Furthermore, the external groove disrupts the thermal boundary layer on the outer wall of the installation pipe, reducing temperature fluctuations and minimizing thermal stress fatigue. This is particularly beneficial for pipes requiring burial... The installation pipe is embedded in the soil. The installation pipe is mechanically interlocked with the soil through an outer groove to reduce axial displacement. A spiral inner groove is opened in the middle of the pipe's arc wall. The continuous spiral structure of the inner groove can convert axial stress into circumferential dispersed stress, reducing stress concentration. The arc-shaped bottom design of the inner groove can avoid the initiation of cracks in right-angle grooves. The inner groove maintains a laminar flow state at low flow rates, reducing the scouring and corrosion of the pipe wall by turbulent flow. It is suitable for low-speed systems such as underfloor heating. The inner groove increases the heat exchange area, reduces the temperature gradient of the pipe wall, and avoids material degradation caused by local overheating. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the PERT pipe in a preferred embodiment of the present invention;

[0017] Figure 2 This is a schematic cross-sectional view of the PERT pipe in a preferred embodiment of the present invention;

[0018] Figure 3This is a cross-sectional view of the heat dissipation groove in a preferred embodiment of the present invention;

[0019] Figure 4 This is a schematic diagram of the sealing groove structure in a preferred embodiment of the present invention.

[0020] Figure label:

[0021] 1. Connecting pipe; 11. Pipe; 111. Internal thread; 112. External thread; 113. Sealing groove; 114. Sealing ring; 115. Internal groove;

[0022] 2. Mounting tube; 21. Heat dissipation groove; 22. Baffle; 211. External groove; 221. Through hole. Detailed Implementation

[0023] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0024] This embodiment provides a novel PERT pipe, including a connecting pipe 1. The connecting pipe 1 has a pipe 11 extending through its side wall. An inner groove 115 is formed in the middle of the arc-shaped wall of the pipe 11. The pipe 11 also includes an installation pipe 2, which is fixedly installed in the middle of the outer arc-shaped wall of the connecting pipe 1. The installation pipe 2 has several heat dissipation grooves 21 extending through its side wall. Baffles 22 are symmetrically fixedly installed on both sides of the installation pipe 2. The side walls of the baffles 22 have through holes 221 communicating with the heat dissipation grooves 21. Heat is dissipated through the heat dissipation grooves 21 and discharged through the through holes 221. The baffles 22 create a gap between the PERT pipe and surrounding components during installation, thereby increasing the heat dissipation effect of the pipe.

[0025] like Figure 1 As shown, the outer arc wall of the installation pipe 2 is provided with an outer groove 211. The outer groove 211 has a spiral structure. The spiral outer groove 211 improves the circumferential stiffness of the installation pipe 2, effectively resists external extrusion, and disperses impact energy. The outer groove 211 increases the outer surface area of ​​the installation pipe 2, improves the natural convection heat dissipation capacity, and avoids local overheating caused by the concrete wrapping of the underfloor heating pipe. The outer groove 211 breaks the thermal boundary layer of the outer wall of the installation pipe 2, reduces the temperature fluctuation of the pipe wall, and reduces thermal stress fatigue. For the installation pipe 2 that needs to be buried in the soil, the installation pipe 2 is mechanically interlocked with the soil through the outer groove 211 to reduce axial displacement.

[0026] like Figure 4 As shown, several sealing grooves 113 are symmetrically opened on the outer arc wall of the connecting pipe 1 near the baffle 22;

[0027] like Figure 1 , Figure 4As shown, a sealing ring 114 is fixedly installed in the sealing groove 113. The sealing ring 114 is made of a flexible material, preferably a flexible rubber material. The sealing ring 114 is used to ensure the sealing performance when the connecting pipe 1 is connected to other components.

[0028] like Figure 2 As shown, the inner groove 115 has a spiral structure. The continuous spiral structure of the inner groove 115 can convert axial stress into circumferential dispersed stress, reducing stress concentration. The bottom of the inner groove 115 has an arc-shaped structure. The arc-shaped bottom design of the inner groove 115 can avoid the initiation of cracks in right-angle grooves. The inner groove 115 maintains a laminar flow state at low flow rates, reducing the scouring and corrosion of the pipe wall by turbulent flow. It is suitable for low-speed systems such as underfloor heating. The inner groove 115 increases the heat exchange area, reduces the temperature gradient of the pipe wall, and avoids material degradation caused by local overheating. The spiral structure allows the pipe body to generate a small torsion when it expands axially, releasing thermal stress.

[0029] like Figure 3 As shown, the heat dissipation groove 21 has an arc-shaped structure and is filled with a heat dissipation medium, preferably a phase change material. The arc-shaped structure of the heat dissipation groove 21 increases the contact area with air and the heat dissipation medium to improve heat exchange capacity. Compared with right-angle grooves, the arc-shaped groove can disperse mechanical stress and prevent crack propagation. The arc-shaped heat dissipation groove 21 acts as a thermal buffer cavity, first absorbing heat from the pipe wall, and then dissipating heat through convection with the external air via the through hole 221, forming a periodic heat dissipation cycle. The heat dissipation medium filled in the heat dissipation groove 21 increases the heat transfer effect to facilitate heat dissipation. At the same time, the heat dissipation groove 21 reduces the circumferential stress concentration of the mounting pipe 2, increasing the strength and lifespan of the mounting pipe 2.

[0030] like Figure 1 , Figure 2 As shown, the outer arc wall of the connecting pipe 1 is symmetrically provided with external threads 112 at both ends;

[0031] like Figure 1 , Figure 2 As shown, the pipe 11 has symmetrical internal threads 111 at both ends of the arc wall. The connecting pipe 1 is directly connected to other components through the internal threads 111 and external threads 112 at both ends, so as to reduce the number of connecting components, reduce costs and leakage risks, eliminate the need for conversion joints when connecting the connecting pipe 1 to other components, and reduce a large number of connection steps.

[0032] In practical application, when using PERT pipes for heating, the connecting pipe 1 is directly connected to other components via its internal threads 111 and external threads 112 at both ends. This reduces the number of connecting components, lowers costs, and reduces the risk of leakage. The connection eliminates the need for adapters, reducing numerous connection steps. A sealing groove 113 is symmetrically formed on the outer arc wall of the connecting pipe 1 near the baffle 22, and a sealing ring 114 is fixedly installed within the sealing groove 113. The sealing ring 114 ensures the sealing performance when the connecting pipe 1 is connected to other components. A pipe 11 extends through the side wall of the connecting pipe 1, with the middle of the arc wall of the pipe 11... The inner groove 115 is arc-shaped. The continuous spiral structure of the inner groove 115 can convert axial stress into circumferential dispersed stress, reducing stress concentration. The bottom of the inner groove 115 is arc-shaped, which can prevent crack initiation in right-angle grooves. The inner groove 115 maintains laminar flow at low flow rates, reducing the scouring and corrosion of the pipe wall by turbulent flow. It is suitable for low-speed systems such as underfloor heating. The inner groove 115 increases the heat exchange area, reduces the temperature gradient of the pipe wall, and avoids material degradation caused by local overheating. The spiral structure allows the pipe body to generate slight torsion when it expands axially, releasing thermal stress. An installation pipe 2 is fixedly installed in the middle of the outer arc wall of the connecting pipe 1. Several heat dissipation grooves 21 are formed through the side wall of the installation pipe 2. The heat dissipation grooves 21 are arc-shaped. Several baffles 22 are symmetrically fixedly installed on the side wall of the installation pipe 2. Several through holes 221 communicating with the heat dissipation grooves 21 are formed on the side wall of the baffles 22. The arc-shaped heat dissipation grooves 21 increase the contact area with air and the heat dissipation medium, thereby improving heat exchange capacity. Compared with right-angle grooves, arc-shaped grooves can disperse mechanical stress and prevent crack propagation. The arc-shaped heat dissipation grooves 21 act as a thermal buffer cavity, first absorbing heat from the pipe wall, and then dissipating heat through convection with the external air via the through holes 221, forming a periodic heat dissipation cycle. The heat dissipation medium filled in the heat dissipation grooves 21 increases the heat transfer effect, facilitating heat dissipation. At the same time, the heat dissipation grooves 21 reduce the circumferential stress concentration of the installation pipe 2, increasing the strength and lifespan of the installation pipe 2. The outer arc wall of the installation pipe 2 has an outer groove 211, which is a spiral structure. The spiral outer groove 211 improves the circumferential stiffness of the installation pipe 2, effectively resists external extrusion, and disperses impact energy. The outer groove 211 increases the outer surface area of ​​the installation pipe 2, improves the natural convection heat dissipation capacity, and avoids local overheating caused by the concrete covering of the underfloor heating pipe. The outer groove 211 breaks the thermal boundary layer of the outer wall of the installation pipe 2, reduces the temperature fluctuation of the pipe wall, and reduces thermal stress fatigue. For installation pipe 2 that needs to be buried in the soil, the installation pipe 2 is mechanically interlocked with the soil through the outer groove 211 to reduce axial displacement.

[0033] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A new PERT pipe comprising a connecting pipe (1), characterized in that, The connecting pipe (1) has a pipe (11) extending through its side wall, and the pipe (11) has an inner groove (115) in the middle of its arc wall. It also includes: The mounting tube (2) is fixedly installed in the middle of the outer arc wall of the connecting tube (1). Several heat dissipation grooves (21) are opened through the side wall of the mounting tube (2). Baffles (22) are fixedly installed symmetrically on both sides of the mounting tube (2). Through holes (221) connecting the heat dissipation grooves (21) are opened through the side wall of the baffles (22). Heat is dissipated through the heat dissipation grooves (21) and heat is discharged at the through holes (221).

2. The novel PERT pipe of claim 1, wherein, The outer arc wall of the installation pipe (2) is provided with an outer groove (211), and the outer groove (211) has a spiral structure.

3. The novel PERT pipe of claim 1, wherein, The outer arc wall of the connecting pipe (1) is symmetrically provided with several sealing grooves (113) near the baffle (22).

4. The novel PERT pipe of claim 3, wherein, A sealing ring (114) is fixedly installed inside the sealing groove (113), and the sealing ring (114) is made of flexible material.

5. The novel PERT pipe of claim 1, wherein, The inner groove (115) has a spiral structure.

6. The novel PERT pipe of claim 1, wherein, The heat dissipation groove (21) has an arc-shaped structure and is filled with a heat dissipation medium.

7. The novel PERT pipe according to claim 1, characterized in that, The connecting pipe (1) has external threads (112) symmetrically opened at both ends of the outer arc wall.

8. The novel PERT pipe of claim 1, wherein, The pipe (11) has internal threads (111) symmetrically opened at both ends of the arc wall.

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