A flute type pipe for a refrigeration system

Abstract

The utility model belongs to refrigeration technical field, concretely relates to a flute type pipe for refrigeration system, including horizontal pipe, the both ends of horizontal pipe are welded with the plug cap respectively, be provided with a plurality of branch pipe connecting hole and main pipe connecting hole on horizontal pipe, the hole wall on branch pipe connecting hole and main pipe connecting hole is fused and is formed with the inner flanging and outer flanging through hot melt drilling, the branch pipe joint of copper pipe production is welded on branch pipe connecting hole, the main pipe joint of copper pipe production is welded on main pipe connecting hole, the advantage is: simple structure, production and manufacture are easy, and the production cost is low, and it is convenient to promote and apply on refrigeration equipment.

Description

Technical Field

[0001] This utility model belongs to the field of refrigeration technology, and in particular relates to a flute-shaped tube for a refrigeration system. Background Technology

[0002] Existing flute-shaped tubes are all made of brass, which has the following drawbacks: First, brass tubes are expensive, resulting in high production costs; second, they have low strength and are prone to deformation, cracking, and corrosion, leading to a short product lifespan; third, when connecting branch pipes, a protective sleeve needs to be installed on the branch pipe mounting hole of the brass tube to increase the strength of the connection, which makes the production process complicated and the production cost high. Summary of the Invention

[0003] The purpose of this invention is to provide a flute-shaped tube for a refrigeration system that is simple in structure, easy to manufacture, low in production cost, and eliminates the need for a sheath.

[0004] The purpose of this utility model is to solve the following problem:

[0005] A flute-shaped tube for a refrigeration system includes a horizontal tube with caps welded to both ends. The horizontal tube has multiple branch pipe connection holes and a main pipe connection hole. The walls of the branch pipe connection holes and the main pipe connection holes are formed by hot melting and pressing with an inner flange and an outer flange. A branch pipe connector is welded to the branch pipe connection hole, and a main pipe connector is welded to the main pipe connection hole.

[0006] As a further optimization of the above technical solution, the wall thickness of the inner and outer flanges of the branch pipe connection hole and the main pipe connection hole at the connection with the horizontal pipe is greater than the wall thickness of the horizontal pipe hole.

[0007] As a further optimization of the above technical solution, the horizontal tube is a round tube, a square tube, a flat tube, or a column with a rectangular cross-section.

[0008] As a further optimization of the above technical solution, the main pipe connector includes a narrow diameter portion and an enlarged diameter portion, wherein the narrow diameter portion is inserted into the main pipe connection hole and welded to the main pipe.

[0009] As a further optimization of the above technical solution, a Y-shaped pipe is welded to the end of the branch pipe joint.

[0010] As a further optimization of the above technical solution, the tops of the inner and outer flanges have a smooth, arc-shaped transition surface with the outer wall of the horizontal tube.

[0011] The advantages of this invention compared to the prior art are:

[0012] 1. In this invention, an inner flange and an outer flange are formed on the wall of the branch pipe connection hole by melting and pressing. At the same time, the thickness of the outer root of the inner flange and the outer flange is greater than the thickness of the hole wall of the horizontal pipe, so that the horizontal pipe at the branch pipe connection hole has a large thickness and high strength, which facilitates welding connection with the branch pipe.

[0013] 2. Because the inner and outer flanges formed by melting and pressing can be directly welded to the branch pipe, this utility model eliminates the conventional process of first welding a copper sheath to the branch pipe connection hole and then welding the branch pipe. This also saves on the material, production, and welding costs of the copper sheath, significantly reducing the production costs of subsequent processing.

[0014] 3. This utility model has a simple structure, is easy to manufacture, has low production cost, and is easy to promote and apply in refrigeration equipment. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of the present invention.

[0016] Figure 2 This is a cross-sectional view of the horizontal pipe and the branch pipe joint connected to the horizontal pipe of this utility model. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. See also: Figures 1-2 :

[0018] A flute-shaped tube for a refrigeration system includes a horizontal tube 10. Both ends of the horizontal tube 10 are respectively welded with caps 30 using welding flux 31. The side wall of the horizontal tube 10 is provided with a plurality of branch pipe connection holes 11 and a main pipe connection hole 14. The walls of the branch pipe connection holes 11 and the main pipe connection holes 14 are formed by hot melt drilling and pressing with an inner flange 13 and an outer flange 12. A branch pipe connector 40 is welded to the branch pipe connection hole 11 using welding flux, and a main pipe connector 20 is welded to the main pipe connection hole 14 using welding flux 21.

[0019] As a further optimization of the above technical solution, the wall thickness D2 of the inner flange 13 and outer flange 12 of the branch pipe connection hole 11 and the main pipe connection hole 14 at the connection with the horizontal pipe 10 is greater than the wall thickness D1 of the horizontal pipe 10.

[0020] As a further optimization of the above technical solution, the horizontal tube 10 is a round tube, a square tube, a flat tube, or a column with a rectangular cross-section.

[0021] As a further optimization of the above technical solution, the main pipe connector 20 includes a narrow diameter portion and an enlarged diameter portion, wherein the narrow diameter portion is inserted into the main pipe connection hole 14 and welded to the main pipe.

[0022] As a further optimization of the above technical solution, a Y-shaped pipe is welded to the end of the branch pipe joint 40.

[0023] As a further optimization of the above technical solution, the tops of the inner flange 13 and the outer flange 12 have an arc-shaped smooth transition surface 15 between them and the outer wall of the horizontal tube 10.

[0024] 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 simple substitutions or modifications can still be made to the technical solutions or technical features described in the foregoing embodiments, and these simple substitutions or modifications do not cause the essence of the corresponding technical solutions to deviate from the spirit and substance of the technical solutions of the embodiments of this utility model, and are still within the protection scope of this utility model.

Claims

1. A flute-shaped tube for a refrigeration system, comprising a horizontal tube, characterized in that: Both ends of the horizontal pipe are welded with plugs. The horizontal pipe is provided with multiple branch pipe connection holes and main pipe connection holes. The walls of the branch pipe connection holes and main pipe connection holes are formed by hot melting and pressing with inner and outer flanges. Branch pipe connectors are welded to the branch pipe connection holes and main pipe connectors are welded to the main pipe connection holes.

2. The flute-shaped tube for a refrigeration system according to claim 1, characterized in that: The wall thickness of the inner and outer flanges of the branch pipe connection hole and the main pipe connection hole at the connection with the horizontal pipe is greater than the wall thickness of the horizontal pipe hole.

3. The flute-shaped tube for a refrigeration system according to claim 1, characterized in that: The horizontal tube can be a round tube, a square tube, a flat tube, or a column with a rectangular cross-section.

4. A flute-shaped tube for a refrigeration system according to claim 1, characterized in that: The main pipe connector includes a narrow diameter section and an enlarged diameter section, wherein the narrow diameter section is inserted into the main pipe connection hole and welded to the main pipe.

5. A flute-shaped tube for a refrigeration system according to claim 1, characterized in that: The end of the branch pipe joint is welded with a Y-shaped pipe.

6. A flute-shaped tube for a refrigeration system according to any one of claims 1-5, characterized in that: The tops of the inner and outer flanges have a smooth, arc-shaped transition surface with the outer wall of the horizontal tube.

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