Combined oil separator and air conditioning system

Abstract

The utility model relates to the technical field of refrigeration, in particular to a combined oil separator and an air conditioning system. The combined oil separator comprises a first oil separator body, a second oil separator body and a connecting piece, the first oil separator body is connected with a first connecting pipe, and the second oil separator body is connected with a second connecting pipe. The connecting piece comprises a middle section, a first bent section and a second bent section, and the first bent section and the second bent section are connected to the two opposite ends of the middle section respectively. The opening of the first bending section away from the middle section is defined as a first opening, and the opening of the second bending section away from the middle section is defined as a second opening. The axis of the first opening coincides with the axis of the first connecting pipe, and the axis of the second opening coincides with the axis of the second connecting pipe. According to the combined type oil separator and the air conditioning system, the problems that when an existing combined type oil separator is connected through a three-way piece, machining is complex, and the welding effect is poor are solved.

Description

Technical Field

[0001] This application relates to the field of refrigeration technology, and in particular to a combined oil separator and air conditioning system. Background Technology

[0002] Currently, combined oil separators typically include two oil separators and a T-joint. The T-joint has three ports: two ports are used to connect to the pipes of the two oil separators, and the remaining port serves as the interface for the combined oil separator to connect to the outside.

[0003] However, in the existing structure, the two adjacent interfaces of the tee have an included angle of about 120° (roughly arranged in a triangular structure). This means that the oil separator's connecting pipe needs to be bent before it can be connected to the tee. This not only makes the process complicated, but also makes it difficult to ensure that the bending angle of the connecting pipe is completely aligned with the interface of the tee during the processing. There is an alignment error between the two, which will affect the subsequent welding effect. Utility Model Content

[0004] Therefore, it is necessary to provide a combined oil separator and air conditioning system to solve the problems of complex processing and poor welding effect when the existing combined oil separator uses a three-way connector.

[0005] This application provides a combined oil separator, which includes a first oil separator, a second oil separator, and a connector. The first oil separator is connected to a first connecting pipe and communicates with the first connecting pipe. The second oil separator is connected to a second connecting pipe and communicates with the second connecting pipe. The ends of the first connecting pipe and the second connecting pipe are connected through the connector. The connector includes a middle section, a first bent section, and a second bent section. The first bent section and the second bent section are respectively connected to opposite ends of the middle section. The opening at the end of the first bent section away from the middle section is defined as the first opening, which is connected to and communicates with the first connecting pipe. The opening at the end of the second bent section away from the middle section is defined as the second opening, which is connected to and communicates with the second connecting pipe. The axis of the first opening coincides with the axis of the first connecting pipe, and the axis of the second opening coincides with the axis of the second connecting pipe.

[0006] In one embodiment, the middle segment extends in a straight line.

[0007] In one embodiment, the axis of the first opening and the axis of the second opening are both perpendicular to the axis of the intermediate segment.

[0008] In one embodiment, the vertical distance between the axis of the first opening and the axis of the second opening is L, and 100mm≤L≤200mm.

[0009] In one embodiment, the connector is made of the same material as the first and second connecting pipes.

[0010] In one embodiment, the connector is made of steel.

[0011] In one embodiment, the middle section, the first bending section, and the second bending section are integrally formed.

[0012] In one embodiment, a third opening is provided on the side wall of the intermediate section, and the vertical distance from the axis of the third opening to the axis of the first opening is equal to the vertical distance from the axis of the third opening to the axis of the second opening.

[0013] In one embodiment, the outer periphery of the third opening is provided with a flange that extends in a direction away from the axis of the intermediate segment.

[0014] This application also provides an air conditioning system, which includes the combined oil separator described in any of the above embodiments.

[0015] Compared with existing technologies, the combined oil separator and air conditioning system provided in this application, by setting a first bending section and a second bending section on the connector, ensures that both the first and second connecting pipes extend in a straight line, unlike the traditional tee structure, without the need to bend them, making processing more convenient. Simultaneously, it effectively reduces the difficulty of aligning and connecting the first bending section with the first and second connecting pipes, ensuring that the axis of the first opening coincides with the axis of the first connecting pipe, and the axis of the second opening coincides with the axis of the second connecting pipe, thus guaranteeing alignment. This improves the welding efficiency and welding effect between the first and second connecting pipes and the connector. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A schematic diagram of the structure of a combined oil separator according to an embodiment of this application;

[0018] Figure 2A cross-sectional view of a connector according to an embodiment provided in this application.

[0019] The symbols in the diagram represent the following meanings:

[0020] 100. Combined oil separator; 10. First oil separator; 11. First connecting pipe; 20. Second oil separator; 21. Second connecting pipe; 30. Connecting piece; 301. First opening; 302. Second opening; 303. Third opening; 31. Middle section; 311. Flanged edge; 32. First bending section; 33. Second bending section; 40. Third connecting pipe. Detailed Implementation

[0021] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0022] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application's specification are for illustrative purposes only and do not represent the only possible implementation.

[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0024] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0025] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used in this application includes any and all combinations of one or more of the associated listed items.

[0026] Currently, combined oil separators typically include two oil separators and a T-joint. The T-joint has three ports: two ports are used to connect to the pipes of the two oil separators, and the remaining port serves as the interface for the combined oil separator to connect to the outside.

[0027] However, in the existing structure, the two adjacent interfaces of the tee have an included angle of about 120° (roughly arranged in a triangular structure). This means that the oil separator's connecting pipe needs to be bent before it can be connected to the tee. This not only makes the process complicated, but also makes it difficult to ensure that the bending angle of the connecting pipe is completely aligned with the interface of the tee during the processing. There is an alignment error between the two, which will affect the subsequent welding effect.

[0028] Please see Figure 1 and Figure 2 To address the issues of complex processing and poor welding results in existing combined oil separators using T-joint connections, this application provides a combined oil separator 100. The combined oil separator 100 includes a first oil separator 10, a second oil separator 20, and a connector 30. The first oil separator 10 is connected to a first connecting pipe 11, and the first oil separator 10 communicates with the first connecting pipe 11. The second oil separator 20 is connected to a second connecting pipe 21, and the second oil separator 20 communicates with the second connecting pipe 21. The ends of the first connecting pipe 11 and the second connecting pipe 21 are connected via the connector 30. Here, the first connecting pipe 11 and the second connecting pipe 21 can typically be configured as the exhaust pipes of the oil separator. That is, after the mixed refrigerant undergoes oil-liquid separation in the first oil separator 10 and the second oil separator 20, the separated lubricating oil returns to the corresponding compressor through the oil return pipe, while the refrigerant is discharged through the first connecting pipe 11 and the second connecting pipe 21.

[0029] Further, the connector 30 includes an intermediate section 31, a first bent section 32, and a second bent section 33, which are respectively connected to opposite ends of the intermediate section 31. The opening at the end of the first bent section 32 furthest from the intermediate section 31 is defined as the first opening 301, which is connected to and communicates with the first connecting pipe 11. The opening at the end of the second bent section 33 furthest from the intermediate section 31 is defined as the second opening 302, which is connected to and communicates with the second connecting pipe 21. The axis of the first opening 301 coincides with the axis of the first connecting pipe 11, and the axis of the second opening 302 coincides with the axis of the second connecting pipe 21.

[0030] It is understood that by providing a first bent section 32 and a second bent section 33 on the connector 30, this application ensures that both the first connecting pipe 11 and the second connecting pipe 21 extend in a straight line, compared to the traditional tee structure, without the need to bend the first connecting pipe 11 and the second connecting pipe 21, making processing more convenient. Simultaneously, it effectively reduces the difficulty of aligning and connecting the first bent section 32 with the first connecting pipe 11, the second bent section 33 with the second connecting pipe 21, ensuring that the axis of the first opening 301 coincides with the axis of the first connecting pipe 11, and the axis of the second opening 302 coincides with the axis of the second connecting pipe 21, thereby guaranteeing alignment. This, in turn, improves the welding efficiency and welding effect between the first connecting pipe 11, the second connecting pipe 21 and the connector 30.

[0031] In one embodiment, such as Figure 1 and Figure 2 As shown, the intermediate section 31 extends in a straight line. This simplifies the structure of the intermediate section 31, further improving processing efficiency. Furthermore, the intermediate section 31 increases the distance between the first opening 301 and the second opening 302, preventing welding interference when they are welded to their corresponding connecting pipes. In other embodiments, the intermediate section 31 may also extend in a curved shape, as long as the same effect is achieved.

[0032] Specifically, because the weld points of traditional tees are located close to each other during welding, interference may occur. Furthermore, welding is typically done in stages, so the welding temperature of later welded positions can affect already welded positions, causing the weld points to become unstable. This not only complicates the welding process but also compromises weld quality, significantly increasing the difficulty of welding. This application, by setting a certain length of intermediate section 31, avoids welding interference at different weld points. As is easily understood, increasing the length of the intermediate section 31 changes the distance between the first opening 301 and the second opening 302, thereby altering the relative positions of the weld points.

[0033] For example, the vertical distance between the axis of the first opening 301 and the axis of the second opening 302 is L, and 100mm≤L≤200mm. Thus, by controlling the distance between the first opening 301 and the second opening 302, interference between the weld points at the first opening 301 and the second opening 302 can be effectively prevented, thereby improving the welding strength. If L<100mm, the distance between the first opening 301 and the second opening 302 is short. When welding the first opening 301 and the second opening 302 sequentially, the welding temperature of the later welded position may affect the already welded position, and there is also a risk of positional interference between the first oil separator 10 and the second oil separator 20. If L>200mm, the length of the intermediate section 31 is long, resulting in a larger overall size of the connecting member 30, which increases the space occupied by the entire combined oil separator 100.

[0034] Optionally, the vertical distance L between the axis of the first opening 301 and the axis of the second opening 302 can be set to 100mm, 125mm, 150mm, 175mm, 200mm, etc., which will not be listed here.

[0035] Furthermore, the axes of the first opening 301 and the second opening 302 are both perpendicular to the axis of the intermediate section 31. That is, in this embodiment, the bent portions on the first bent section 32 and the second bent section 33 are both bent at 90°, with a small bending radius, simple structure and easy to form. At the same time, it can further reduce the difficulty of docking the first opening 301 with the first connecting pipe 11, the second opening 302 and the second connecting pipe 21, thereby effectively improving the processing efficiency.

[0036] In one embodiment, the intermediate section 31, the first bent section 32, and the second bent section 33 are integrally formed to improve the overall structural strength of the connector 30. Here, the connector 30 can be formed by a draft molding process.

[0037] To facilitate welding between the connector 30 and the first connecting pipe 11 and the second connecting pipe 21, in one embodiment, the material of the connector 30 may be the same as that of the first connecting pipe 11 and the second connecting pipe 21. This can greatly improve the welding efficiency and welding strength between the first connecting pipe 11, the second connecting pipe 21, and the connector 30.

[0038] For example, in this embodiment, the connector 30, the first connecting pipe 11, and the second connecting pipe 21 can all be made of steel. Steel is relatively inexpensive, which helps reduce the cost of the combined oil separator 100. Furthermore, compared to the traditional welding between steel connecting pipes and copper tees, welding between steel and copper is more difficult, requiring special processes to prevent welding cracks. This process is complex and costly. In this embodiment, all components are made of steel. Steel welding technology is mature, simple to operate, and requires no special welding process, thus reducing welding steps and lowering costs.

[0039] In one embodiment, such as Figure 1 and Figure 2 As shown, in order to connect the connector 30 to the external pipeline, a third opening 303 is provided on the side wall of the intermediate section 31. A third connecting pipe 40 is connected to the third opening 303. Here, the third connecting pipe 40 can be made of copper to facilitate welding with the copper pipeline in the air conditioning system and improve installation efficiency.

[0040] Furthermore, the perpendicular distance from the axis of the third opening 303 to the axis of the first opening 301 is equal to the perpendicular distance from the axis of the third opening 303 to the axis of the second opening 302. That is, the connector 30 is configured as a symmetrical structure, which facilitates the flow of refrigerant and reduces vibration caused by uneven force.

[0041] To improve the stability of the connection between the third opening 303 and the third connector 40, in one embodiment, a flange 311 is provided around the outer periphery of the third opening 303, and the flange 311 extends in a direction away from the axis of the intermediate section 31. It is easy to understand that the flange 311 can increase the contact area between the connector 30 and the third connector 40, thereby improving the welding strength between the two.

[0042] The flange 311 and the middle section 31 can also be set as an integral structure to further enhance the overall structural strength of the connector 30.

[0043] This application also provides an air conditioning system, which includes the combined oil separator 100 of any of the above embodiments.

[0044] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above 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.

[0045] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the scope of protection of this application. Therefore, the patent protection scope of this application should be determined by the appended claims.

Claims

1. A combined oil separator, characterized in that, It includes a first oil separator (10), a second oil separator (20), and a connector (30). The first oil separator (10) is connected to a first connecting pipe (11) and the first oil separator (10) is in communication with the first connecting pipe (11). The second oil separator (20) is connected to a second connecting pipe (21) and the second oil separator (20) is in communication with the second connecting pipe (21). The ends of the first connecting pipe (11) and the second connecting pipe (21) are connected through the connector (30). The connector (30) includes a middle section (31), a first bent section (32), and a second bent section (33). The first bent section (32) and the second bent section (33) are respectively connected to the opposite ends of the middle section (31). The opening at the end of the first bent section (32) away from the middle section (31) is defined as the first opening (301). The first opening (301) is connected to and communicates with the first connecting pipe (11). The opening at the end of the second bent section (33) away from the middle section (31) is defined as the second opening (302). The second opening (302) is connected to and communicates with the second connecting pipe (21). The axis of the first opening (301) coincides with the axis of the first connecting pipe (11), and the axis of the second opening (302) coincides with the axis of the second connecting pipe (21).

2. The combined oil separator according to claim 1, characterized in that, The middle section (31) extends in a straight line.

3. The combined oil separator according to claim 2, characterized in that, The axis of the first opening (301) and the axis of the second opening (302) are both perpendicular to the axis of the intermediate section (31).

4. The combined oil separator according to claim 1, characterized in that, The vertical distance between the axis of the first opening (301) and the axis of the second opening (302) is L, and 100mm≤L≤200mm.

5. The combined oil separator according to claim 1, characterized in that, The material of the connector (30) is the same as that of the first pipe (11) and the second pipe (21).

6. The combined oil separator according to claim 1, characterized in that, The connector (30) is made of steel.

7. The combined oil separator according to claim 1, characterized in that, The middle section (31), the first bending section (32) and the second bending section (33) are integrally formed structures.

8. The combined oil separator according to claim 1, characterized in that, A third opening (303) is provided on the side wall of the middle section (31). The vertical distance from the axis of the third opening (303) to the axis of the first opening (301) is equal to the vertical distance from the axis of the third opening (303) to the axis of the second opening (302).

9. The combined oil separator according to claim 8, characterized in that, The outer periphery of the third opening (303) is provided with a flange (311), which extends in a direction away from the axis of the middle section (31).

10. An air conditioning system, characterized in that, Includes the combined oil separator as described in any one of claims 1-9.

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