Pipeline assembly and refrigerating system thereof

Abstract

The utility model relates to the technical field of refrigerating systems, in particular to a pipeline assembly and a refrigerating system thereof. The pipeline assembly comprises a main pipe, a branch pipe and a connecting plate, a connecting hole is formed in the side wall of the main pipe, part of the branch pipe extends into the connecting hole, the peripheral wall of the part, located in the connecting hole, of the branch pipe abuts against the hole wall, forming the connecting hole, of the main pipe, the connecting plate is arranged on the peripheral side of the branch pipe and connected with the branch pipe, and the connecting plate is connected with the branch pipe. The side, facing the main pipe, of the connecting plate is connected with the outer wall of the main pipe in a welded mode. The connecting structure has the advantages that the part of the branch pipe is matched with the connecting hole in an inserted mode, the hole wall of the connecting hole achieves circumferential limiting abutting connection on the part, located in the connecting hole, of the branch pipe, the branch pipe and the main pipe are pre-assembled, and the problems that the branch pipe and the main pipe deviate and incline in the welding and assembling process are solved. And the connecting plate is arranged on the peripheral side of the branch pipe and is stably connected with the branch pipe, the contact area is large, shaking is not prone to occurring, and the pipeline assembly is more stable.

Description

Technical Field

[0001] The utility model relates to the technical field of refrigeration systems, in particular to a pipeline component and a refrigeration system thereof. Background Art

[0002] The refrigeration system is provided with a pipeline assembly for supplying the refrigerant flow, the pipeline assembly comprises a main pipe and a branch pipe, and the main pipe and the branch pipe are connected to each other.

[0003] The main pipe and the branch pipe are generally connected by welding. However, in the prior art, the overlapping area between the branch pipe and the main pipe is too small, so the welding area between the branch pipe and the main pipe is relatively small, which may cause the problem of insufficient welding strength. In addition, during the assembly and overlapping of the branch pipe and the main pipe, the branch pipe may be skewed, resulting in the possibility of partial welding during welding, which also affects the welding strength. Therefore, how to improve the welding connection strength between the main pipe and the branch pipe is a technical problem to be solved. Utility Model Content

[0004] Based on this, the utility model provides a pipeline assembly for the above technical problems.

[0005] A pipeline assembly, the pipeline assembly comprising: a main pipe, a connecting hole being opened on the side wall of the main pipe; a branch pipe, a portion of the branch pipe extending into the connecting hole, and the outer peripheral wall of the portion of the branch pipe located in the connecting hole abuts against the hole wall of the main pipe forming the connecting hole; a connecting plate, the connecting plate being arranged on the outer peripheral side of the branch pipe and being welded to the branch pipe, and the side of the connecting plate facing the main pipe is at least partially attached to and welded to the outer wall of the main pipe, wherein the single side length of the cross section of the attached portion is ≥2mm.

[0006] With such a configuration, part of the branch pipe is plugged into the connection hole, and the hole wall of the connection hole realizes circumferential limiting contact with the part of the branch pipe located in the connection hole, so that the branch pipe and the main pipe are pre-assembled, avoiding the problem of displacement and skewness of the branch pipe and the main pipe during the welding assembly process. In addition, the connecting plate is arranged on the outer peripheral side of the branch pipe, and the connection with the branch pipe is relatively stable. The side of the connecting plate facing the main pipe is connected to the outer wall of the main pipe, so the connecting plate and the main pipe are stably connected, which can improve the connection strength between the branch pipe and the main pipe, and the contact area is large, which is not easy to shake, making the pipeline assembly more stable. In addition, the single-side length of the cross section of the fitting part is ≥2mm, which further ensures the connection area and connection strength.

[0007] In one embodiment, at least one side of the connecting plate facing the main pipe is an arc-shaped surface, the curvature of the arc-shaped surface is the same as the curvature of the outer peripheral wall of the main pipe, and the arc-shaped surface is completely in contact with the outer peripheral wall of the main pipe.

[0008] In one embodiment, the connecting plate is bent to form an arc structure, and two side surfaces of the connecting plate close to or away from the main pipe are two arc surfaces with the same curvature, and the curvature of the connecting plate is the same as the curvature of the outer peripheral wall of the main pipe.

[0009] In one embodiment, the branch pipe is passed through the middle of the connecting plate, and the main pipe and the branch pipe are vertically arranged.

[0010] In one embodiment, the opening is provided with a through hole, the branch pipe is passed through the through hole and connected to the hole wall of the through hole, the through hole and the branch pipe are coaxially arranged, and the projection of the connecting plate in the axial direction of the branch pipe is elliptical.

[0011] In one embodiment, the thickness of the connecting plate in the radial direction of the main pipe is X, and X satisfies 1 mm ≤ X ≤ 2 mm.

[0012] In one embodiment, the length of a single side of the cross section of the contact portion is ≤5 mm.

[0013] In one embodiment, the surface of the connecting plate abutting against the main pipe is a first surface, and the maximum distance between the end of the branch pipe extending into the connecting hole and the first surface is H, and H satisfies 2mm≤H≤5mm.

[0014] In one embodiment, the connecting plate is a saddle-shaped plate.

[0015] The utility model also provides a refrigeration system, comprising the pipeline assembly as described above.

[0016] Compared with the prior art, the utility model connects the connecting plate to the branch pipe, and the connecting plate is welded to the main pipe while the branch pipe is connected to the main pipe, so as to improve the connection strength between the branch pipe and the main pipe. Before the connecting plate is welded to the main pipe, part of the branch pipe can be inserted into the connecting hole of the main pipe to achieve the effect of pre-positioning, thereby avoiding the problems of deviation and skew between the branch pipe and the main pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A structural cross-sectional view of one embodiment of the pipeline assembly provided by the utility model;

[0018] Figure 2 A side view of one embodiment of the pipeline assembly provided by the utility model;

[0019] Figure 3 A schematic diagram of the structure of the branch pipe and the connecting plate provided by the utility model;

[0020] Figure 4This is a top view of the branch pipe and the connecting plate provided by the utility model.

[0021] The symbols in the figure mean the following:

[0022] 100. Pipeline assembly; 10. Main pipe; 11. Connecting hole; 20. Branch pipe; 30. Connecting plate; 31. First surface. DETAILED DESCRIPTION

[0023] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0024] It should be noted that when a mechanism is referred to as being "fixed to" or "set on" another mechanism, it may be directly on the other mechanism or there may be a central mechanism. When a mechanism is considered to be "connected to" another mechanism, it may be directly connected to the other mechanism or there may be a central mechanism at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in the specification of this application are for illustrative purposes only and do not represent the only implementation method.

[0025] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0026] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first feature is directly in contact with the second feature, or the first feature and the second feature are indirectly in contact through an intermediate medium. Moreover, a first feature being “above”, “above” or “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below” or “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0027] Unless otherwise defined, all technical and scientific terms used in the specification of this application have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used in the specification of this application includes any and all combinations of one or more related listed items.

[0028] The utility model provides a pipe assembly 100 which is applied in a refrigeration system and can provide a stable connection effect.

[0029] See also Figure 1-Figure 2 The pipeline assembly 100 includes a main pipe 10, a branch pipe 20 and a connecting plate 30. A connecting hole 11 is opened on the side wall of the main pipe 10. A portion of the branch pipe 20 extends into the connecting hole 11, and the outer peripheral wall of the portion of the branch pipe 20 located in the connecting hole 11 abuts against the hole wall of the main pipe 10 forming the connecting hole 11. The connecting plate 30 is arranged on the outer peripheral side of the branch pipe 20 and is welded to the branch pipe 20. The side of the connecting plate 30 facing the main pipe 10 is at least partially attached to and welded to the outer wall of the main pipe 10, wherein the single side length of the cross section of the attached portion is ≥2mm.

[0030] In this way, part of the branch pipe 20 is plugged into the connection hole 11, and the hole wall of the connection hole 11 realizes circumferential limiting contact with the part of the branch pipe 20 located in the connection hole 11, so that the branch pipe 20 is pre-assembled with the main pipe 10, avoiding the problem of deviation and skewness of the branch pipe 20 and the main pipe 10 during the welding assembly process. In addition, the connecting plate 30 is arranged on the outer peripheral side of the branch pipe 20, and the connection with the branch pipe 20 is relatively stable. The side of the connecting plate 30 facing the main pipe 10 is at least partially attached to the outer wall of the main pipe 10 and welded, so the connecting plate 30 is stably connected to the main pipe 10, which can improve the connection strength between the branch pipe 20 and the main pipe 10, and the contact area is large, and it is not easy to shake, making the pipeline assembly 100 more stable, and the single-side length of the cross section of the attached part is ≥2mm, which further ensures the connection area and connection strength.

[0031] Furthermore, the length of a single side of the cross section of the fitting portion is ≤5 mm, so as to avoid unnecessary increase of consumables due to the redundant connection area after the connection strength between the connecting plate 30 and the main pipe 10 has reached the standard.

[0032] Specifically, at least one side of the connecting plate 30 facing the main pipe 10 is an arcuate surface, that is, the side facing away from the main pipe 10 can be a plane or other shapes that are convenient for production. The curvature of the arcuate surface is the same as the curvature of the outer peripheral wall of the main pipe 10, and the arcuate surface is completely fitted with the outer peripheral wall of the main pipe 10. Therefore, the arcuate surface is more adapted to the outer peripheral wall of the main pipe 10, and the abutment between the two is tighter, reducing the gap, so as to further enhance the abutment and limiting effect between the connecting plate 30 and the main pipe 10, and the connecting plate 30 is not easy to shake, that is, the shaking of the branch pipe 20 can be reduced.

[0033] In other embodiments, in order to reduce processing costs, the curvature of the curved surface of the connecting plate 30 may also be set to be different from the curvature of the outer peripheral wall of the main pipe 10. For example, when the curvature of the curved surface of the connecting plate 30 is greater than the curvature of the outer peripheral wall of the main pipe 10, it can be filled with solder, and when the curvature of the curved surface of the connecting plate 30 is less than the curvature of the outer peripheral wall of the main pipe 10, it can be directly interference fit, and is not limited to the solution of the same curvature in the above embodiment.

[0034] Preferably, the connecting plate 30 is bent to form an arc-shaped structure, and the two side surfaces of the connecting plate 30 close to or away from the main pipe 10 are two arc-shaped surfaces with the same curvature, and the curvature of the connecting plate 30 is the same as the curvature of the outer peripheral wall of the main pipe 10, that is, the connecting plate 30 is originally a straight plate structure with uniform thickness, and is bent to form an arc-shaped plate structure. In this way, the arc-shaped surface is directly formed by bending the connecting plate 30, and no additional opening is required on the connecting plate 30, thereby reducing the process cost.

[0035] The branch pipe 20 is passed through the middle of the connecting plate 30, and the main pipe 10 and the branch pipe 20 are vertically arranged. Therefore, after the connecting plate 30 is connected to the main pipe 10, when it bears stress from various angles and directions of the branch pipe 20, it is more balanced to avoid stress concentration and offset.

[0036] The connecting plate 30 is provided with a through hole (not shown in the figure), the branch pipe 20 is passed through the through hole and connected to the hole wall of the through hole, the through hole is coaxially arranged with the branch pipe 20, and the projection of the connecting plate 30 in the axial direction of the branch pipe 20 is an ellipse. The elliptical connecting plate 30 has a stronger load bearing capacity, the arc-shaped edge has the characteristic of dispersing stress, and is not easy to scratch the main pipe 10.

[0037] Preferably, in this embodiment, the shape of the connecting plate 30 is a saddle shape. In other embodiments, the connecting plate 30 can also be set to a perfect circle or a rectangle, that is, the connecting plate 30 is set to a saddle plate, a rectangular plate or a circular plate.

[0038] See also Figure 3-Figure 4The thickness of the connecting plate 30 in the radial direction of the main pipe 10 is X, and X satisfies 1mm≤X≤2mm. In this way, it is possible to avoid the connecting plate 30 being too thin and thus causing insufficient structural strength, and to prevent the connecting plate 30 from being too thick and thus causing material waste.

[0039] Exemplarily, the thickness X of the connecting plate 30 is 1.2 mm, 1.4 mm, 1.7 mm, 1.9 mm, etc., but is not limited to the above two endpoint values.

[0040] At the same time, the surface where the connecting plate 30 abuts against the main pipe 10 is defined as the first surface 31, and the maximum distance between the end of the branch pipe 20 extending into the connecting hole 11 and the first surface 31 is H, and H satisfies: 2mm≤H≤5mm. In this way, it is prevented that the branch pipe 20 extends too shallowly and fails to achieve a good pre-assembly effect, and prevents the branch pipe 20 from extending too deeply and affecting the flow of the medium in the main pipe 10.

[0041] Exemplarily, H can be set to 2.4 mm, 3.1 mm, 4.7 mm or 5 mm, etc., but is not limited to the above two endpoint values.

[0042] It should be explained that the above values ​​of X and H are only applicable to the range limited by the size of the pipeline assembly 100 in this embodiment. In other application scenarios, when the size of the pipeline assembly 100 is larger or smaller, the above values ​​of X and H can also be flexibly changed.

[0043] In this embodiment, the main pipe 10 and the branch pipe 20 are vertically arranged to facilitate the insertion of the branch pipe 20 into the main pipe 10 for assembly and to facilitate the flow of the medium between the branch pipe 20 and the main pipe 10 .

[0044] In this embodiment, the connection plate 30 and the main pipe 10 are connected by welding. When there is a gap between the connection plate 30 and the main pipe 10, the solder can be filled into the gap to make the connection between the connection plate 30 and the main pipe 10 tighter and stronger.

[0045] The utility model also provides a refrigeration system, comprising the pipeline assembly 100 as described above.

[0046] Compared with the prior art, the utility model connects the connecting plate 30 to the branch pipe 20, and the connecting plate 30 is welded to the main pipe 10 while the branch pipe 20 is connected to the main pipe 10, so as to improve the connection strength between the branch pipe 20 and the main pipe 10. Before the connecting plate 30 is welded to the main pipe 10, a part of the branch pipe 20 can be inserted into the connecting hole 11 of the main pipe 10 to achieve the effect of pre-positioning, thereby avoiding the problems of deviation and skew between the branch pipe 20 and the main pipe 10.

[0047] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0048] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A pipeline assembly, characterized in that: The pipeline assembly comprises: A main pipe (10), wherein a connecting hole (11) is formed on a side wall of the main pipe (10); a branch pipe (20), a portion of the branch pipe (20) extending into the connecting hole (11), and an outer peripheral wall of a portion of the branch pipe (20) located in the connecting hole (11) abutting against a hole wall of the main pipe (10) forming the connecting hole (11); A connecting plate (30), the connecting plate (30) being arranged on the outer peripheral side of the branch pipe (20) and being welded to the branch pipe (20), and the side of the connecting plate (30) facing the main pipe (10) being at least partially attached to and welded to the outer wall of the main pipe (10), wherein the single side length of the cross section of the attached portion is ≥2 mm.

2. The pipeline assembly according to claim 1, characterized in that: At least one side surface of the connecting plate (30) facing the main pipe (10) is an arc-shaped surface, the curvature of the arc-shaped surface is the same as the curvature of the outer peripheral wall of the main pipe (10), and the arc-shaped surface is completely in contact with the outer peripheral wall of the main pipe (10).

3. The pipeline assembly according to claim 2, characterized in that: The connecting plate (30) is bent to form an arc-shaped structure, and the two side surfaces of the connecting plate (30) close to or far from the main pipe (10) are two arc-shaped surfaces with the same curvature, and the curvature of the connecting plate (30) is the same as the curvature of the outer peripheral wall of the main pipe (10).

4. The pipeline assembly according to claim 1, characterized in that: The branch pipe (20) is passed through the middle of the connecting plate (30), and the main pipe (10) and the branch pipe (20) are vertically arranged.

5. The pipeline assembly according to claim 4, characterized in that: The connecting plate (30) is provided with a through hole, the branch pipe (20) is passed through the through hole and connected to the hole wall of the through hole, the through hole and the branch pipe (20) are coaxially arranged, and the projection of the connecting plate (30) in the axial direction of the branch pipe (20) is elliptical.

6. The pipeline assembly according to claim 3, characterized in that: The thickness of the connecting plate (30) in the radial direction of the main pipe (10) is X, and X satisfies 1 mm ≤ X ≤ 2 mm.

7. The pipeline assembly according to claim 1, characterized in that: The single side length of the cross section of the bonding part is ≤5mm.

8. The pipeline assembly according to any one of claims 1 to 7, characterized in that: The surface where the connecting plate (30) abuts against the main pipe (10) is a first surface (31), and the maximum distance between the end of the branch pipe (20) extending into the connecting hole (11) and the first surface (31) is H, where H satisfies 2mm≤H≤5mm.

9. The pipeline assembly according to claim 1, characterized in that , the connecting plate (30) is a saddle-shaped plate.

10. A refrigeration system, characterized in that: Comprising the pipeline assembly as described in any one of claims 1-9.

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