Connecting pipe fitting for copper-fluorine direct heating system

Abstract

The utility model relates to a connecting pipe fitting for a copper fluorine direct heating system, which comprises a main body pipeline and a branch pipeline connected with the main body pipeline, the main body pipeline and the branch pipeline are integrally formed, the surface of the main body pipeline and the surface of the branch pipeline are respectively provided with an anti-corrosion coating, and the end parts of the main body pipeline and the branch pipeline are respectively provided with a connecting thread. Reinforcing connecting lug blocks are arranged on the main body pipeline and the branch pipelines. According to the connecting pipe fitting for the copper-fluorine direct heating system, the main body pipeline and the branch pipelines are integrally formed, so that the welding defect is eliminated, and the safety and the reliability are enhanced.

Description

Technical Field

[0001] This utility model belongs to the technical field of heating system, and in particular relates to a connecting pipe fitting for a copper-fluorine direct heating system. Background Technology

[0002] Connecting pipe fittings for copper-fluorine direct heating systems are a key component of heating systems, primarily used to connect the main unit and multiple terminal devices to achieve refrigerant distribution. However, existing connecting pipe fittings for copper-fluorine direct heating systems have some drawbacks. First, because waterless underfloor heating circulates refrigerant through capillary copper tubes, there are many welded joints. If weld slag becomes clogged during welding, it can lead to an explosion in severe cases. Second, the need for welding during installation increases the difficulty and skill level of workers, while also increasing the risk of pipe bursts and leaks. Utility Model Content

[0003] (I) Purpose of the utility model

[0004] To overcome the above shortcomings, the purpose of this utility model is to provide a connecting pipe fitting for a copper-fluorine direct heating system to solve the above technical problems.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, the technical solution provided in this application is as follows:

[0007] A connecting pipe fitting for a copper-fluorine direct heating system includes a main pipe and a branch pipe connected to the main pipe. The main pipe and the branch pipe are integrally formed. The surfaces of the main pipe and the branch pipe are provided with anti-corrosion coatings. The ends of the main pipe and the branch pipe are provided with connecting threads. The main pipe and the branch pipe are provided with reinforcing connecting lugs.

[0008] Preferably, the main pipe and branch pipes have smooth inner walls with a roughness Ra of less than 0.4 micrometers.

[0009] Preferably, both the main pipe and the branch pipes have a uniform wall thickness, which ranges from 1.0 mm to 2.0 mm.

[0010] Preferably, the anti-corrosion coating is a polyethylene coating with a thickness of 0.2-0.6 mm, and the surface of the anti-corrosion coating is frosted.

[0011] Preferably, the main pipe and the branch pipe are provided with internal threads, and a sealing ring is provided on the inner side of the internal threads of the main pipe and the branch pipe.

[0012] Preferably, the reinforcing connecting lug is provided with bolt connection holes.

[0013] Preferably, the connection between the branch pipe and the main pipe is U-shaped.

[0014] Preferably, the main pipe is equipped with a filter.

[0015] Preferably, the connection end corresponding to the end of the main pipe and / or branch pipe is provided with an external thread corresponding to the internal thread, and is provided with a mounting connection lug corresponding to the reinforcing connection lug, wherein the mounting connection lug is provided with a bolt mounting hole corresponding to the bolt connection hole.

[0016] Preferably, the external thread of the connection end is set starting from 1-3 mm from the end.

[0017] Beneficial effects:

[0018] This utility model of connecting pipe fittings for copper-fluorine direct heating systems eliminates welding defects and enhances safety and reliability through an integrated molding design of the main pipe and branch pipes. The smooth inner wall treatment and uniform wall thickness improve fluid transport efficiency and pressure resistance. Polyethylene coating and frosted finish enhance corrosion resistance and wear resistance, extending service life. Internal threaded connections with sealing rings ensure a tight seal at the connection, preventing leakage. Reinforced connecting lugs and a U-shaped connection design optimize fluid distribution, reducing eddies and pressure loss. A filter protects the pipes from wear caused by impurities. External threads and mounting lugs reinforce the pipe connection, reduce the risk of leakage, and overall improve the stability and durability of the piping system. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a structural diagram of the connection end according to one embodiment of the present utility model;

[0021] Figure 3 This is a cross-sectional view according to one embodiment of the present invention. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the following description, in conjunction with specific embodiments and the appendix, provides further details. Figure 1-3 The present invention will be described in further detail below. It should be understood that these descriptions are exemplary only and are not intended to limit the scope of the present invention. Furthermore, descriptions of well-known structures and techniques are omitted in the following description to avoid unnecessarily obscuring the concept of the present invention.

[0023] This utility model provides a connecting pipe fitting for a copper-fluorine direct heating system, comprising a main pipe 1 and a branch pipe 2 connected to the main pipe 1. The main pipe 1 and the branch pipe 2 are integrally formed. This integral forming design avoids weld defects that may occur during welding, reduces the risk of leakage, and improves the reliability and safety of the product. The main pipe 1 and the branch pipe 2 have smooth inner walls with a roughness Ra of less than 0.4 micrometers. The smooth inner walls reduce fluid flow resistance, improve fluid transport efficiency, and reduce energy consumption.

[0024] The end diameters of the main pipe 1 and the branch pipe 2 are standardized and correspond to the diameters of the connected pipes, eliminating the need for flaring or cutting, making the process convenient and quick.

[0025] Both the main pipe 1 and the branch pipe 2 have a uniform wall thickness, which ranges from 1.0 mm to 2.0 mm.

[0026] Both the main pipeline 1 and the branch pipeline 2 are covered with an anti-corrosion coating 10. The anti-corrosion coating 10 is a polyethylene coating with a thickness of 0.2-0.6 mm, and its surface is treated with a frosted finish. The polyethylene coating provides excellent anti-corrosion performance, extending the service life of the pipeline. The frosted finish enhances the coating's wear resistance and adhesion, improving its durability.

[0027] Both the main pipe 1 and the branch pipe 2 are provided with connecting threads at their ends, and both have internal threads 8. A sealing ring 4 is provided inside the internal threads 8 of both the main pipe 1 and the branch pipe 2, that is, the sealing ring is located at the end of the internal thread 8 furthest from the opening. The connecting threads facilitate quick connection and disassembly between pipes, improving installation efficiency. The sealing ring ensures the tightness of the connection, preventing fluid leakage.

[0028] The main pipe 1 and the branch pipe 2 are equipped with reinforcing connecting lugs. Each reinforcing connecting lug has bolt holes. The connection between the branch pipe 2 and the main pipe 1 is U-shaped, which optimizes fluid distribution, reduces fluid eddies and pressure loss in the pipe, and improves the uniformity and efficiency of fluid distribution.

[0029] The main pipeline 1 is equipped with a filter. The filter prevents impurities from entering the pipeline system, protects the pipeline from wear and blockage, and ensures the long-term stable operation of the system.

[0030] The connecting end corresponding to the end of the main pipe 1 and / or branch pipe 2 is provided with an external thread 5 corresponding to the internal thread 8, and a mounting connecting lug 6 corresponding to the reinforcing connecting lug 3. The mounting connecting lug 6 is provided with a bolt mounting hole 7 corresponding to the bolt connection hole 9. A bolt passes through the bolt connection hole and the bolt mounting hole in sequence, reinforcing the connection between the branch pipe and other pipes and preventing leakage.

[0031] The external thread of the connection end begins 1-3 mm from the end. The first end of the connection end extends into the end of the main pipe 1 and / or the branch pipe 2, and is press-fitted with the sealing ring to further reduce the risk of leakage.

[0032] This utility model's connecting pipe fittings for a copper-fluorine direct heating system effectively avoid welding defects, reduce leakage risks, and improve product reliability and safety through the integrated molding design of the main pipe 1 and branch pipe 2. The smooth inner wall of the pipe reduces fluid flow resistance, improves transport efficiency, and reduces energy consumption. The uniform wall thickness design ensures the pipe's mechanical strength and pressure resistance. The anti-corrosion coating 10 is made of polyethylene and undergoes a frosted treatment, enhancing wear resistance and adhesion, and extending service life. The cooperation of the internal thread 8 and the sealing ring 4 ensures the sealing of the connection, preventing fluid leakage. The design of the reinforced connecting lugs and bolt connection holes, as well as the U-shaped connection, optimizes fluid distribution, reduces eddies and pressure loss, and improves the uniformity and efficiency of fluid distribution. The filter prevents impurities from entering the system, protects the pipes from wear and blockage, and ensures long-term stable operation of the system. The design of the external thread 5 and the mounting connecting lugs 6, along with the bolts passing through the bolt connection holes and bolt mounting holes in sequence, further strengthens the connection between the branch pipe and other pipes, preventing leakage. The external thread at the connection end starts 1-3 mm from the end and is interference-fitted with the sealing ring, further reducing the risk of leakage and improving the overall stability and service life of the pipeline system.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0034] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A connecting pipe fitting for a copper-fluorine direct heating system, characterized in that, The utility model provides a pipeline, which comprises a main pipeline and branch pipelines connected with the main pipeline, the main pipeline and the branch pipelines are integrally formed, the surfaces of the main pipeline and the branch pipelines are provided with anticorrosive coating, the end portions of the main pipeline and the branch pipelines are provided with connecting threads, the main pipeline and the branch pipelines are provided with reinforcing connecting lug blocks, the main pipeline and the branch pipelines are provided with internal threads, the inner sides of the internal threads of the main pipeline and the branch pipelines are provided with sealing rings, the connecting end corresponding to the end portion of the main pipeline and / or the branch pipelines is provided with external threads corresponding to the internal threads and mounting connecting lug blocks corresponding to the reinforcing connecting lug blocks, the mounting connecting lug blocks are provided with bolt mounting holes corresponding to bolt connecting holes.

2. A connecting pipe fitting for a copper-fluorine direct heating system according to claim 1, characterized in that, The main pipeline and the branch pipelines have smooth inner walls with a roughness Ra less than 0.4 microns.

3. The connecting pipe fitting for a copper-fluorine direct heating system according to claim 1, characterized by The main pipeline and the branch pipelines have uniform wall thicknesses ranging from 1.0 mm to 2.0 mm.

4. The connecting pipe fitting for a copper-fluorine direct heating system according to claim 1, characterized by The anticorrosive coating is a polyethylene coating with a thickness of 0.2-0.6 mm, and the surface of the anticorrosive coating is ground.

5. The connecting pipe fitting for a copper-fluorine direct heating system according to claim 1, characterized by The reinforcing connecting lug blocks are provided with bolt connecting holes.

6. The connecting pipe fitting for a copper-fluorine direct heating system according to claim 1, characterized by The connection between the branch pipelines and the main pipeline is U-shaped.

7. The connecting pipe fitting for a copper-fluorine direct heating system according to claim 1, characterized by The main pipeline is provided with a filter.

8. The connecting pipe fitting for a copper-fluorine direct heating system according to claim 1, characterized by The external threads of the connecting end are arranged 1-3 mm from the end portion.

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