Gas collecting pipe connecting pipe connecting structure

Abstract

The utility model relates to the technical field of pipeline connection, in particular to a gas collecting pipe connecting pipe connecting structure which comprises a gas collecting main pipe, a circulating connecting pipe is arranged on the outer side of the gas collecting main pipe, and a connecting assembly is arranged at the joint of the circulating connecting pipe and the gas collecting main pipe. The connecting assembly is C-shaped and sleeves the outer side of the main gas collecting pipe, an annular sealing gasket is arranged on the inner wall of the connecting assembly and is sealed with the surface of the main gas collecting pipe, and the inner diameter and the outer diameter of the circulating connecting pipe are consistent with those of the main gas collecting pipe respectively; the device has the beneficial effects that the connecting assembly is arranged at the joint of the main gas collecting pipe and the circulating connecting pipe, the main gas collecting pipe is sleeved with the connecting assembly, the connecting assembly and the main gas collecting pipe are kept sealed through the annular sealing gasket, the connecting assembly is in a C shape, and the circulating connecting pipe is welded to the outer side of the connecting assembly and communicates with an inner cavity of the main gas collecting pipe; the inner and outer diameters of the gas collecting main pipe and the circulating connecting pipe can be kept consistent respectively, so that the phenomenon of local closure during flowing of an internal medium is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline connection, in particular to a gas collecting pipe connecting structure. Background Art

[0002] Heat exchange gas (liquid) collecting pipes are mostly used at the refrigerant collection end of the heat exchange system to collect the refrigerant media on the branch pipes and transport them uniformly.

[0003] Currently, the circulation pipe and the gas collecting main pipe are fixed and connected by welding, and the inner diameter of the pipe is usually slightly smaller than that of the main pipe.

[0004] In the prior art, when the refrigerant flows from the gas collecting main pipe to the circulation pipe, due to the different inner diameters of the connection between the two, local interception is likely to occur, thereby affecting the normal flow of the medium. To this end, the utility model proposes a gas collecting pipe pipe connection structure to solve the above problem. Utility Model Content

[0005] The utility model aims to provide a gas collecting pipe connecting structure to solve the problem of local flow interception at the connection between the main pipe and the connecting pipe proposed in the above background technology.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a gas collecting pipe connection structure, comprising:

[0007] A gas collecting main pipe, the outer side of which is provided with a circulation pipe, and a connection assembly is provided at the connection between the circulation pipe and the gas collecting main pipe;

[0008] The connecting component is arranged in a "C" shape and is sleeved on the outside of the gas collecting main pipe. The inner wall of the connecting component is provided with an annular sealing gasket and is sealed with the surface of the gas collecting main pipe. The circulating pipe is welded and fixed to the outer wall of the connecting component. The inner and outer diameters of the circulating pipe are respectively consistent with those of the gas collecting main pipe, and the circulating pipe is connected to the inner cavity of the gas collecting main pipe.

[0009] Preferably, a communication port which is consistent with the inner diameter of the circulation pipe is opened on the surface of the connection component, the inner cavity of the circulation pipe corresponds to the communication port, and the annular sealing gasket is located around the communication port.

[0010] Preferably, one end of the circulation connecting pipe is fixedly connected to a circulation pipe, and the other end of the circulation connecting pipe is provided with a connecting portion, the connecting portion is formed by flanging the circulation connecting pipe outward, the connecting portion is saddle-shaped and is welded and fixed to the surface of the connecting component, and a rounded corner is provided at the connection between the connecting portion and the circulation connecting pipe.

[0011] Preferably, a plurality of branch pipes distributed at equal intervals are fixedly connected to the surface of the gas collecting main pipe, and avoidance grooves corresponding to the branch pipes are provided at both side edges of the connecting assembly.

[0012] Preferably, convex plates are fixedly connected to both side edges of the connection component, and multiple convex plates and avoidance grooves are provided and spaced apart from each other. A through hole is opened in the middle of the convex plate and the connection component is tightened and fixed by bolts.

[0013] Preferably, a stiffening plate is fixedly provided at the connection between the convex plate and the connecting assembly, and the stiffening plate is perpendicular to the surface of the convex plate.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The utility model provides a connecting assembly at the connection of the gas collecting main pipe and the circulation pipe, the connecting assembly is sleeved on the outside of the gas collecting main pipe and keeps a seal with the gas collecting main pipe through an annular sealing gasket, the connecting assembly is in a "C" shape, and is fixed to the gas collecting main pipe by bolts, the circulation pipe is welded to the outside of the connecting assembly and is connected to the inner cavity of the gas collecting main pipe, the inner and outer diameters of the gas collecting main pipe and the circulation pipe can be kept consistent, thereby avoiding the local interception phenomenon when the internal medium flows. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the separation of the circulation pipe and the connecting component structure of the utility model;

[0018] Figure 3 This is a three-dimensional schematic diagram of the circulation pipe structure of the utility model;

[0019] Figure 4 It is a three-dimensional schematic diagram of the connecting component structure of the utility model.

[0020] In the figure: 1. gas collecting main pipe; 11. branch pipe; 2. circulation connecting pipe; 21. connection part; 22. fillet; 23. circulation pipe; 3. connection assembly; 31. convex plate; 32. through hole; 33. avoidance groove; 34. stiffening plate; 35. connecting port; 36. annular sealing gasket. DETAILED DESCRIPTION

[0021] In order to make the purpose and technical solution of the present invention clearly and completely described, and the advantages more clearly understood, the embodiments of the present invention are further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to explain the embodiments of the present invention, and are not used to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] In the description of the present invention, it should be noted that the terms "center", "middle", "upper", "lower", "left", "right", "inner", "outer", "top", "bottom", "side", "vertical", "horizontal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "one", "first", "second", "third", "fourth", "fifth", "sixth" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] For the purpose of simplicity and illustration, the principles of the embodiments are mainly described by reference to examples. In the following description, many specific details are proposed to provide a thorough understanding of the embodiments. However, it is obvious that for those of ordinary skill in the art, these embodiments may not be limited to these specific details in practice. In some instances, known methods and structures are not described in detail to avoid making these embodiments unnecessarily difficult to understand. In addition, all embodiments can be used in combination with each other.

[0025] See also Figures 1 to 4 , the utility model provides a technical solution:

[0026] Embodiment 1, a gas collecting pipe connecting structure, comprising:

[0027] The gas collecting main pipe 1 is provided with a circulation pipe 2 on the outside of the gas collecting main pipe 1. A connection assembly 3 is provided at the connection between the circulation pipe 2 and the gas collecting main pipe 1. The gas collecting main pipe 1 is used to collect the refrigerant medium, and the circulation pipe 2 is used to circulate the refrigerant medium. The connection assembly 3 is used to connect the circulation pipe 2 with the gas collecting main pipe 1. The specific connection method is as follows:

[0028] The connecting component 3 is set in a "C" shape and is sleeved on the outside of the gas collecting main pipe 1. The connecting component 3 itself can undergo a certain degree of elastic deformation to facilitate the installation and removal of the connecting component 3 and the gas collecting main pipe 1. The inner wall of the connecting component 3 is provided with an annular sealing gasket 36 and keeps a seal with the surface of the gas collecting main pipe 1. After the connecting component 3 is tightly sleeved on the gas collecting main pipe 1, the annular sealing gasket 36 can increase the sealing between the inner wall of the connecting component 3 and the surface of the gas collecting main pipe 1. The circulation pipe 2 is welded and fixed to the outer wall of the connecting component 3. The circulation pipe 2 and the connecting component 3 remain relatively fixed and can be separated from the gas collecting main pipe 1 as the connecting component 3 is disassembled. The inner and outer diameters of the circulation pipe 2 and the gas collecting main pipe 1 are respectively consistent, and the circulation pipe 2 is connected to the inner cavity of the gas collecting main pipe 1. Figure 1 As shown, since the circulation pipe 2 is not directly connected to the gas collecting main pipe 1, the outer diameters of the circulation pipe 2 and the gas collecting main pipe 1 can be kept consistent and are both smaller than the outer diameter of the connecting component 3. When the circulation pipe 2 and the connecting component 3 are welded, the strength of the weld will not be easily reduced. In addition, the inner diameter of the circulation pipe 2 is kept consistent with the inner diameter of the gas collecting main pipe 1, which can effectively avoid local interception when the medium flows.

[0029] In order to connect the circulation pipe 2 with the gas collecting main pipe 1, the present application also has a connection port 35 with the same inner diameter as the circulation pipe 2 opened on the surface of the connection component 3, the inner cavity of the circulation pipe 2 corresponds to the connection port 35, and the surface of the gas collecting main pipe 1 also has a hole corresponding to the connection port 35. Figure 1 and Figure 2 As shown, the connecting port 35 is used to maintain the connection between the inner cavities of the circulation connecting pipe 2 and the gas collecting main pipe 1. The annular sealing gasket 36 is located around the connecting port 35. The annular sealing gasket 36 can be pre-bonded and fixed to the inner wall of the connecting component 3. After the connecting component 3 is tightly fitted on the gas collecting main pipe 1, the annular sealing gasket 36 can not only improve the sealing between the two, but also increase the friction between the two, thereby preventing the connecting component 3 from moving and rotating, and further preventing the circulation connecting pipe 2 and the gas collecting main pipe 1 from being misaligned.

[0030] In order to connect the circulation connecting pipe 2 with the connecting component 3, the present application also has a circulation pipe 23 fixedly connected to one end of the circulation connecting pipe 2, and a connecting portion 21 is provided at the other end of the circulation connecting pipe 2. The connecting portion 21 is formed by flanging the circulation connecting pipe 2 outward, and the connecting portion 21 is integrally formed with the circulation connecting pipe 2. The connecting portion 21 is saddle-shaped and is welded and fixed to the surface of the connecting component 3. A fillet 22 is provided at the connection between the connecting portion 21 and the circulation connecting pipe 2. The setting of the connecting portion 21 is used to increase the contact area between the circulation connecting pipe 2 and the connecting component 3, thereby improving the stability of the welding fixation. The setting of the fillet 22 is used to reduce the possibility of the circulation connecting pipe 2 being broken, thereby improving the connection strength between the circulation connecting pipe 2 and the connecting component 3.

[0031] In order to further prevent the connection component 3 from moving and rotating, the present application also has a plurality of branch pipes 11 fixedly connected to the surface of the gas collecting main pipe 1 and distributed at equal intervals, and avoidance grooves 33 corresponding to the branch pipes 11 are provided on the edges of both sides of the connection component 3. The avoidance grooves 33 are provided to prevent the connection component 3 from colliding with the branch pipes 11. In addition, after the connection component 3 is tightly sleeved on the outside of the gas collecting main pipe 1, the connection component 3 can shrink inward by a certain distance. At this time, the avoidance grooves 33 just correspond to the branch pipes 11, and the branch pipes 11 can limit the connection component 3, thereby further preventing the possibility of movement and rotation of the connection component 3.

[0032] In order to improve the sealing between the connection component 3 and the gas collecting main pipe 1, the present application also has convex plates 31 fixedly connected to the edges of both sides of the connection component 3, and multiple convex plates 31 and avoidance grooves 33 are provided and spaced apart from each other. A through hole 32 is opened in the middle of the convex plate 31 and the connection component 3 is tightened and fixed by bolts. Figure 4 , Figure 2 and Figure 1 It can be seen that after the connection assembly 3 is tightened by the bolts, it can undergo a certain degree of elastic deformation, thereby fitting tightly with the surface of the gas collecting main pipe 1 to improve the sealing performance of the two.

[0033] In order to improve the connection strength between the convex plate 31 and the connecting assembly 3, the present application also has a reinforcing plate 34 fixedly arranged at the connection between the convex plate 31 and the connecting assembly 3, and the reinforcing plate 34 is perpendicular to the surface of the convex plate 31, such as Figure 4 As shown, the reinforcement plate 34 is provided to improve the connection strength between the protruding plate 31 and the connecting component 3 to avoid breakage between the protruding plate 31 and the connecting component 3 .

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A gas collecting pipe connection structure, characterized in that: include: A gas collecting main pipe (1), a circulation pipe (2) being arranged on the outside of the gas collecting main pipe (1), and a connection assembly (3) being arranged at the connection between the circulation pipe (2) and the gas collecting main pipe (1); The connecting assembly (3) is arranged in a "C" shape and is sleeved on the outside of the gas collecting main pipe (1). The inner wall of the connecting assembly (3) is provided with an annular sealing gasket (36) and is sealed with the surface of the gas collecting main pipe (1). The circulation pipe (2) is welded and fixed to the outer wall of the connecting assembly (3). The inner and outer diameters of the circulation pipe (2) and the gas collecting main pipe (1) are respectively consistent, and the circulation pipe (2) is connected to the inner cavity of the gas collecting main pipe (1).

2. The gas collecting pipe connection structure according to claim 1, characterized in that: The surface of the connection assembly (3) is provided with a communication port (35) having the same inner diameter as the circulation pipe (2); the inner cavity of the circulation pipe (2) corresponds to the communication port (35); and the annular sealing gasket (36) is located around the communication port (35).

3. The gas collecting pipe connection structure according to claim 1, characterized in that: One end of the circulation pipe (2) is fixedly connected to a circulation pipe (23), and the other end of the circulation pipe (2) is provided with a connecting portion (21). The connecting portion (21) is formed by flanging the circulation pipe (2) outwards. The connecting portion (21) is saddle-shaped and is welded and fixed to the surface of the connecting assembly (3). A fillet (22) is provided at the connection between the connecting portion (21) and the circulation pipe (2).

4. The gas collecting pipe connection structure according to claim 1, characterized in that: A plurality of branch pipes (11) distributed at equal intervals are fixedly connected to the surface of the gas collecting main pipe (1), and avoidance grooves (33) corresponding to the branch pipes (11) are provided at both side edges of the connecting component (3).

5. The gas collecting pipe connection structure according to claim 4, characterized in that: The edges of both sides of the connection assembly (3) are fixedly connected with convex plates (31), a plurality of convex plates (31) and avoidance grooves (33) are provided and are spaced apart from each other, a through hole (32) is provided through the middle of the convex plate (31), and the connection assembly (3) is tightened and fixed by bolts.

6. The gas collecting pipe connection structure according to claim 5, characterized in that: A reinforcing plate (34) is fixedly provided at the connection between the convex plate (31) and the connecting assembly (3), and the reinforcing plate (34) is perpendicular to the surface of the convex plate (31).

Images