Oil separator and refrigeration system

Abstract

This invention provides an oil separator comprising: a cylindrical body and an oil-separating plate disposed in an internal cavity of the cylindrical body. The cylindrical body includes a top wall, side walls, and a bottom wall; an inlet fitting having an inlet channel and an outlet fitting having an outlet channel; a mixture of oil and refrigerant to be separated enters the oil separator through the inlet channel; and the separated refrigerant exits the oil separator through the outlet channel. The oil-separating plate includes a first partition portion and a second partition portion. The first partition portion extends generally along the axial direction of the cylindrical body and is located between the inlet fitting and the outlet fitting, separating the bottom ports of the inlet and outlet channels on both sides of the first partition portion. The second partition portion extends from the first partition portion toward the side wall and is located between the outlet fitting and the bottom wall. Additionally, this invention also provides a refrigeration system including the oil separator. According to the oil separator and refrigeration system of this invention, the oil separation rate is high, and the system is stable and efficient.

Description

Technical Field

[0001] This invention relates to the field of refrigeration systems and oil separators, and more specifically, to an oil separator with an oil separator plate for use in refrigeration systems. Background Technology

[0002] This section provides background information related to the present invention, which does not necessarily constitute prior art.

[0003] In refrigeration systems, gaseous refrigerants inevitably contain some oil. If the oil content in the gaseous refrigerant is too high, it not only affects the heat exchange of the condenser and evaporator in the system but can also cause the compressor to malfunction due to oil shortage. Therefore, refrigeration systems are typically equipped with oil separators to separate the oil from the refrigerant and return it to the compressor, thereby ensuring the reliable and efficient operation of the refrigeration system.

[0004] However, in existing oil separators, only an intermediate baffle is set to separate the inlet and outlet of the oil separator. The separated oil is easily carried away from the oil separator by the refrigerant gas from the outlet and remixed with the refrigerant gas and enters the system, resulting in a low separation rate of the oil separator.

[0005] Therefore, there is a need for an improved oil separator that can not only increase the oil separation rate and avoid excessive oil circulation rate, but also has a simple structure, is easy to manufacture, and has wide applicability. Summary of the Invention

[0006] This section provides a general overview of the invention, rather than a full disclosure of the invention's complete scope or all its features.

[0007] The purpose of this invention is to provide a high-efficiency oil separator and a refrigeration system using the oil separator. The oil separator's oil-separating plate includes not only a longitudinal baffle portion that separates the air inlet and the air outlet, but also a lateral baffle portion for preventing oil from splashing near the air outlet, thereby reducing the probability of oil being sucked into the air outlet and improving the separation rate of the oil separator.

[0008] The oil separator according to the present invention includes: a cylinder, the cylinder including a top wall, a side wall and a bottom wall, an inlet fitting having an inlet channel and an outlet fitting having an outlet channel, wherein a mixture of oil and refrigerant to be separated enters the oil separator from the inlet channel and the separated refrigerant leaves the oil separator from the outlet channel; an oil separator plate, the oil separator plate being arranged in the internal cavity of the cylinder, wherein the oil separator plate includes a first partition portion and a second partition portion, the first partition portion extending generally along the axial direction of the cylinder, the first partition portion being located between the inlet fitting and the outlet fitting and separating the bottom port of the inlet channel and the bottom port of the outlet channel on both sides of the first partition portion, the second partition portion extending from the first partition portion toward the side wall, the second partition portion being located between the outlet fitting and the bottom wall.

[0009] Optionally, the oil separator also includes a third baffle portion that extends from the first baffle portion toward the side wall and is located between the intake fitting and the bottom wall.

[0010] Optionally, the third partition extends along the transverse direction of the cylinder, and / or the second partition extends toward the side wall and bottom wall at an angle of 15 to 75 degrees relative to the transverse direction.

[0011] Optionally, the second partition portion and the third partition portion extend from the bottom end of the first partition portion.

[0012] Optionally, a filter assembly is provided at the intake fitting so that the mixture of oil and refrigerant flows through the filter assembly after exiting from the bottom port of the intake passage, while no filter assembly is provided at the outlet fitting.

[0013] Optionally, a filter assembly is provided at the air intake fitting so that the mixture of oil and refrigerant flows through the filter assembly after flowing out from the bottom port of the air intake passage. The filter assembly is constructed as a double-layer filter structure, wherein the mesh count of the inner filter is smaller than that of the outer filter.

[0014] Optionally, the cylinder is a circular cylinder, and the outer edge of the second partition and / or the third partition is constructed to be an arc shape with the center of the circle coinciding with the center of the cylinder.

[0015] Optionally, the size of the gap between the outer edge of the second and / or third partition sections and the sidewall is 1% to 10% of the inner radius of the cylinder.

[0016] Optionally, the second partition portion and / or the third partition portion are integrally formed with the first partition portion.

[0017] Optionally, the oil separator is composed of an inlet-side separator and an outlet-side separator that are generally L-shaped. The inlet-side separator and the outlet-side separator each include a longitudinal extension and a lateral extension. The longitudinal extensions of the inlet-side separator and the outlet-side separator overlap and connect with each other to form a first separator section. The lateral extension of the outlet-side separator forms a second separator section, and the lateral extension of the inlet-side separator forms a third separator section.

[0018] Optionally, the oil separator also includes a float located between the oil separator plate and the bottom wall and at least partially covered by the oil separator plate.

[0019] Optionally, the air inlet and air outlet fittings are respectively configured as an air inlet pipe and an air outlet pipe that pass through the top wall and partially extend into the internal cavity of the cylinder.

[0020] The present invention also provides a refrigeration system, wherein the refrigeration system includes an oil separator as described above.

[0021] In general, the oil separator according to the present invention provides at least the following beneficial effects: Since the separated oil flows into the oil storage chamber below the oil separator via a lateral baffle below the air inlet, oil surface "splashing" is reduced; since a lateral baffle is provided below the air outlet, even if oil surface "splashing" occurs, it can be effectively blocked by the lateral baffle below the air outlet, preventing oil from splashing near the air outlet. Therefore, the oil separator according to the present invention not only effectively prevents the separated oil from being sucked into the air outlet and re-entering the circulation system, thereby improving the oil separation rate and ensuring the efficient and reliable operation of the refrigeration system, but also has a simple structure, is easy to manufacture, and has wide applicability. Attached Figure Description

[0022] The foregoing and other features and characteristics of the invention will become clearer from the following detailed description with reference to the accompanying drawings, which are by way of example only and are not necessarily drawn to scale. The same reference numerals are used in the drawings to indicate the same parts, in which:

[0023] Figure 1 A longitudinal sectional view of the oil separator according to the present invention is shown;

[0024] Figure 2 A perspective sectional view of an oil separator according to the present invention is shown;

[0025] Figure 3 A top view of an oil separator according to the invention is shown, wherein at least part of the top cover is removed; and

[0026] Figure 4 A longitudinal sectional view of the oil separator in the comparative example is shown. Detailed Implementation

[0027] Now we will combine Figures 1 to 4 Preferred embodiments of the invention will be described in detail below. In the various views, corresponding components or portions are indicated by the same reference numerals. The following description is exemplary in nature and is not intended to limit the invention or its application or use.

[0028] Figure 1 An oil separator 100 according to the present invention is shown. The oil separator 100 includes a cylinder, an inlet fitting (corresponding to the inlet fitting of this application) 18, an outlet fitting (corresponding to the outlet fitting of this application) 17, a filter assembly 182, an oil separator 20, and an oil return pipe 19, etc. A mixture of refrigerant (gaseous) and oil (liquid particles) from the refrigeration system to be separated enters the internal cavity enclosed by the inlet pipe 18 into the cylinder. The oil is decelerated and deflected by collisions with the filter assembly 182, the oil separator 20, etc., thereby separating from the refrigerant. The separated refrigerant leaves the oil separator 100 through the outlet pipe 17 and returns to the refrigeration system circulation. The separated oil is collected and stored in an oil storage chamber at the bottom of the internal cavity of the cylinder. Typically, the oil storage chamber is also equipped with a float 15 and a valve assembly for controlling the opening and closing of the oil return pipe 19. When the oil level in the oil storage chamber exceeds a threshold, the float 15 and the valve assembly open the oil return pipe 19, and the oil in the oil storage chamber returns to the compressor of the refrigeration system through the oil return pipe 19. It should be noted that in the illustrated embodiment, the cylinder is circular; however, it is conceivable that in other embodiments, the cylinder may be non-circular (e.g., approximately square). Furthermore, it should be noted that in the illustrated embodiment, the inlet fitting 18 and outlet fitting 17 are implemented as inlet and outlet pipes that partially extend into the internal cavity of the cylinder. However, it is conceivable that in other embodiments, the inlet and outlet fittings may be implemented in other suitable forms, such as pipes that do not extend into the internal cavity of the cylinder, or directly using the through-hole at the top cover as the inlet and outlet fittings. That is, any structure that provides a passage for fluid to enter and leave the oil separator can serve as the inlet and outlet fittings.

[0029] In the illustrated oil separator 100, the cylinder body is composed of a generally cylindrical sidewall 12 and a top cover (corresponding to the top wall of this application) 11 and a bottom cover 13 (corresponding to the bottom wall of this application) disposed at both ends of the sidewall 12. The top cover 11 and / or the bottom cover 13 can be integrally formed with the sidewall, or they can be separately formed with the sidewall and then connected to the sidewall. The top cover 11 is provided with through holes 112 and 114 spaced apart from each other. The air outlet pipe 17 and the air inlet pipe 18 pass through the through holes 112 and 114 on the top cover 11 and are fixed to the top cover 11, respectively. The bottom end 171 of the air outlet pipe 17 closer to the bottom cover 13 and the bottom end 181 of the air inlet pipe 18 closer to the bottom cover 13 extend into the internal cavity of the cylinder body, thereby defining the air inlet channel 18a and the air outlet channel 17a, respectively. The filter assembly 182 is fixedly connected to the intake pipe 18 at its bottom end 181. The filter assembly 182 encloses the bottom port 181a of the intake passage 18a, ensuring that the mixture of refrigerant and oil entering the cylinder from the bottom port 181a of the intake passage 18a must pass through the filter assembly 182. The filter assembly 182 can be any type of assembly capable of separating refrigerant and oil, such as... Figure 1 The filter assembly shown is fixedly connected to the air inlet pipe 18 at its upper end by screws or rivets. Its lower end, opposite to the upper end, gradually tapers and seals, thereby improving the separation efficiency of the filter and facilitating the guidance of the separated oil downwards. Preferably, the filter assembly is constructed as a double-layer filter structure, wherein the mesh count of the inner filter is smaller than that of the outer filter, so that the filter assembly has both sufficient strength and rigidity for fixed connection with the pipe and excellent oil filtration efficiency. Furthermore, when the filter assembly is constructed as a double-layer or even multi-layer filter structure, each layer of filter can directly contact each other without gaps, further enhancing the support effect between the layers and reducing the size of the filter assembly, facilitating miniaturization design. Those skilled in the art will understand that, in this invention, a filter assembly is specifically not provided at the bottom end 171 of the air outlet pipe 17, thereby preventing oil from adhering to the filter assembly at the air outlet pipe 17 and being easily sucked into the air outlet pipe 17.

[0030] The oil separator 20 is disposed within the internal cavity of the cylinder. See also Figure 2 and Figure 3The oil separator 20 consists of an inlet-side separator 24 and an outlet-side separator 22. The inlet-side separator 24 is generally L-shaped and includes a longitudinal extension 241 and a lateral extension 242, formed, for example, by welding or integrally connecting them. Similarly, the outlet-side separator 22 is also L-shaped and includes a longitudinal extension 221 and a lateral extension 222, formed, for example, by welding or integrally connecting them. Here, "longitudinal" refers to a direction parallel to the axial direction of the oil separator 100, and "lateral" refers to a direction intersecting the axial direction of the oil separator 100. The "lateral" direction may be perpendicular or not perpendicular to the axial direction of the oil separator 100, for example... Figure 2 , Figure 3 In the example shown, the lateral extension 222 of the outlet side baffle 22 is not perpendicular to the axial direction of the oil separator 100, while the lateral extension 242 of the inlet side baffle 24 is perpendicular to the axial direction of the oil separator 100, which will be described in detail below.

[0031] A fixing portion may be formed at the top end of the longitudinal extension 241 of the inlet-side partition 24, through which the inlet-side partition 24 is fixed to the top cover 11. Alternatively, the fixing portion may be formed at the top end of the longitudinal extension 241 of the outlet-side partition 22, or at the top end of the longitudinal extensions of both the outlet-side partition 22 and the inlet-side partition 24. The longitudinal extensions 241 of the inlet-side partition 24 and 221 of the outlet-side partition 22 are arranged to overlap each other and are connected together by means of welding, riveting, etc., thereby jointly forming the first partition portion 21 of the oil separator 20. The first baffle portion 21 is arranged between the inlet pipe 18 and the outlet pipe 17, extending generally along the axial direction of the cylinder and extending beyond the lower end of the filter assembly 182 to above the float 15, thereby separating the inlet pipe 18 (especially the bottom port 181a of the inlet channel 18a) and the outlet pipe 17 (especially the bottom port 171a of the outlet channel 17a) on both sides of the first baffle portion 21. Preferably, the longitudinal extension 241 of the inlet-side baffle 24 and the longitudinal extension 221 of the outlet-side baffle 22 are flush with each other at the bottom ends closer to the bottom cover 13, making the structure of the oil separator 20 more compact. The lateral extension 222 of the outlet-side baffle 22 extends from the bottom end of the longitudinal extension 221 toward the side wall 12 to a position close to the side wall 12, thereby forming a second baffle portion 23 arranged between the outlet pipe 17 and the bottom cover 13, more precisely between the bottom end 171 of the outlet pipe 17 and the float 15. The lateral extension 242 of the inlet side baffle 24 extends from the bottom end of the longitudinal extension 241 toward the side wall 12 to a position close to the side wall 12, thereby forming a third baffle portion 25 arranged between the air intake pipe 18 and the bottom cover 13, more precisely, between the lower end of the filter assembly 182 and the float 15. That is, the first baffle portion 21, the second baffle portion 23, and the third baffle portion 25 are located at the bottom end of the first baffle portion 21 (at the bottom end of the inlet side baffle 24). Figure 1 In the example, the longitudinal extension 241 of the inlet-side partition 24 and the bottom end of the longitudinal extension 221 of the outlet-side partition 22 are sealed together. Furthermore, although shown in the figures as the second partition portion 23 and the third partition portion 25 both extending from the bottom end of the first partition portion 21 toward the side wall 12, thereby providing greater installation and operating space for the float or other components below, those skilled in the art will understand that the second partition portion 23 and / or the third partition portion 25 may also extend toward the side wall from the middle portion located between the top and bottom ends of the first partition portion 21.

[0032] The following is combined with Figure 1 and Figure 4 The specific function of the oil separator 20 is described. For example... Figure 4 The oil separator 100' in the comparative example shown has an oil separator plate 20' that is simply a flat plate extending longitudinally between the outlet pipe 17 and the inlet pipe 18. Refrigerant gas entering from the inlet pipe 18 directly impacts the oil surface in the oil reservoir, and oil separated by collision with the filter assembly 182 drips directly from the filter assembly 182 and / or the oil separator plate 20' into the lower oil reservoir. This easily causes oil in the oil reservoir to splash and be sucked into the outlet pipe 17. Furthermore, the bottom end 171 of the outlet pipe 17 is also equipped with a filter assembly 172', making it easy for oil to adhere to the filter assembly 172' and be easily sucked into the outlet pipe 17, thus remixing with the refrigerant and entering the circulation. In addition, the impact of refrigerant or oil on the float 15 can easily cause the float 15 to float up and down, leading to malfunction of the valve assembly.

[0033] In contrast, in such Figure 1In the oil separator 100 of the present invention shown, since the oil separator 20 has a laterally extending second partition portion 23 and a third partition portion 25, the oil separated by collision with the filter assembly 182 falls from the longitudinal extension portion 241 of the filter assembly 182 and / or the inlet-side partition 24 to the upper surface of the laterally extending portion 242 (i.e., the third partition portion 25) opposite to the top cover 11, and then flows into the oil storage chamber through the gap between the third partition portion 25 and the side wall 12. Since the second partition portion 23 and the third partition portion 25 extend from the first partition portion 21 toward the side wall 12 respectively, in other words, the first partition portion 21, the second partition portion 23 and the third partition portion 25 are sealed together, so the separated oil can only fall to the upper surface of the third partition portion 25 opposite to the top cover 11, and will not flow to the upper surface of the second partition portion 23 opposite to the top cover 11, thereby preventing the oil from being sucked into the vent pipe 17 because it is too close to the vent pipe 17. The third baffle 25, on the one hand, prevents the refrigerant gas entering from the intake pipe 18 from directly impacting the oil surface in the oil reservoir, thereby reducing the possibility of oil splashing in the oil reservoir due to refrigerant impact. On the other hand, since the separated oil flows into the oil reservoir via the lateral extension 242, it avoids oil dripping directly into the oil reservoir and causing oil splashing. Even if some oil in the oil reservoir still splashes, the second baffle 23 can prevent oil from splashing to the vicinity of the exhaust pipe 17, thereby reducing the possibility of oil being carried out by the exhaust pipe 17. Furthermore, since the filter assembly is eliminated at the exhaust pipe 17, the possibility of oil adhering to the vicinity of the exhaust pipe 17 and being sucked into the exhaust pipe 17 is also reduced. Finally, since the laterally extending second baffle 23 and third baffle 25 of the oil separator 20 can at least partially cover the float 15, the impact of refrigerant and / or oil on the float 15 is reduced, thereby preventing the float 15 from undesirably floating up and down and causing the oil return pipe 19 to open and close incorrectly. Therefore, the oil separator according to the present invention has a higher oil separation rate, which can ensure the efficient and reliable operation of the refrigeration system, and the oil separator 20 has a simple structure and is easy to manufacture.

[0034] The following describes some optimized design details of the oil separator 20. See [link / reference] Figure 3The outer edge 2421 of the lateral extension 242 (i.e., the third partition portion 25) of the inlet side partition 24, opposite to its longitudinal extension 241, is constructed in an arc shape with its center coinciding with the center of the cylinder. This arc-shaped outer edge 2421 extends along the circumferential direction of the sidewall 12 and forms a uniform gap with the sidewall 12. As a result, the lateral extension 242 of the inlet side partition 24 can be positioned as close as possible to the sidewall 12, thereby reducing the gap between the outer edge 2421 and the sidewall 12. This allows more of the separated oil to come into contact with the lateral extension 242 and then flow into the oil storage chamber through the gap between the outer edge 2421 and the sidewall 12, thus minimizing oil splashing caused by oil droplets falling onto the oil surface in the oil storage chamber or refrigerant gas impacting the oil surface in the oil storage chamber. Similar to the lateral extension 242 of the inlet-side partition 24, the outer edge 2221 of the lateral extension 222 of the outlet-side partition 22 (i.e., the second partition portion 23), opposite to its longitudinal extension 221, is also constructed in an arc shape with its center coinciding with the center of the cylinder. Therefore, the lateral extension 222 of the outlet-side partition 22 can also be positioned as close as possible to the sidewall 12, reducing the gap between the outer edge 2221 and the sidewall 12, and preventing the separated oil from splashing near the exhaust pipe 17.

[0035] Preferably, the size of the gap between the outer edge 2421 of the lateral extension 242 (i.e., the third partition portion 25) and / or the outer edge 2221 of the lateral extension 222 (i.e., the second partition portion 23) and the sidewall is 1% to 10% of the inner radius of the cylinder, thereby greatly reducing the probability of oil splashing to the vicinity of the vent pipe 17 and reducing the possibility of oil being sucked into the vent pipe 17 and remixed with the refrigerant.

[0036] Furthermore, as described above, the lateral extensions 242 and 222 of the outlet side partition 22 do not necessarily have to be perpendicular to the axial direction of the oil separator 100; they only need to extend toward the sidewall 12. However, preferably, as... Figure 1 and Figure 2As shown, the lateral extension 242 of the inlet side baffle 24 extends in a transverse direction perpendicular to the axis of the cylinder, while the lateral extension 242 of the outlet side baffle 22 extends toward the side wall 12 and the bottom cover 13 at an angle of 15 to 75 degrees relative to the transverse direction. On the one hand, when oil splashes from the oil storage chamber, the downwardly inclined lateral extension 242 enhances the shielding effect against splashed oil; on the other hand, even if oil splashes onto the lateral extension 242, due to its downwardly inclined slope design, the oil is more likely to flow down into the oil storage chamber due to gravity; furthermore, the downward inclination of the lateral extension 242 also increases the distance between it and the bottom end 171 of the vent pipe 17, further reducing the probability of oil being sucked into the vent pipe 17. In addition, the combined arrangement of the transversely extending inlet side baffle 24 and the inclined outlet side baffle 25 also provides more space for the float 15 below, making the overall structure of the oil separator 100 more compact.

[0037] In addition, to facilitate the installation of the return oil pipe 19, or to facilitate installation and maintenance, the lateral extension 222 and / or the lateral extension 242 can be cut along a cutting line that is at an angle (preferably, vertical as shown in the figure) to the longitudinal extension 221 of the outlet side partition 22 and the longitudinal extension 241 of the inlet side partition 24, thereby leaving space, for example, for the return oil pipe 19 to extend from the oil storage chamber through the lateral extension 222 and / or the lateral extension 242 to the top cover 11.

[0038] Those skilled in the art will understand that, in addition to the method described above of connecting two L-shaped baffles (inlet-side baffle 24 and outlet-side baffle 22) via overlapping longitudinal extensions 241 and 221, the oil baffle can also be formed by connecting a longitudinally extending baffle (first baffle portion) and two laterally extending baffles (second baffle portion and third baffle portion) at the bottom end of the longitudinally extending baffle. This connection can be, for example, a fixed welded connection or an integrally formed connection, as long as there are no gaps at the connection point, preventing oil from the intake pipe side from flowing into the outlet pipe side through the connection point.

[0039] Furthermore, those skilled in the art will understand that the present invention is not limited to the exemplary embodiments described above, but also includes variations or combinations of the various examples described above.

[0040] The high-temperature heat pump system according to a preferred embodiment of the present invention has been described above with reference to specific embodiments. It is understood that the above description is merely exemplary and not restrictive, and various modifications and variations can be conceived by those skilled in the art with reference to the above description without departing from the scope of the invention. These modifications and variations are also included within the scope of protection of the present invention.

Claims

1. An oil separator (100), the oil separator comprising: The cylindrical body includes a top wall (11), a side wall (12), and a bottom wall (13). An intake fitting (18) has an intake passage (18a) and an outlet fitting (17) has an outlet passage (17a). The mixture of oil and refrigerant to be separated enters the oil separator from the intake passage, and the separated refrigerant leaves the oil separator from the outlet passage. Oil separator (20), the oil separator is arranged in the internal cavity of the cylinder. The oil separator is characterized in that it comprises a first separator portion (21) and a second separator portion (23). The first separator portion extends substantially along the axial direction of the cylinder body and is located between the air inlet fitting and the air outlet fitting, separating the bottom port (181a) of the air inlet channel and the bottom port (171a) of the air outlet channel on both sides of the first separator portion. The second separator portion extends from the first separator portion toward the side wall and is located between the air outlet fitting and the bottom wall. The oil separator also includes a third baffle portion (25) that extends from the first baffle portion toward the side wall and is located between the air intake fitting and the bottom wall. The size of the gap between the outer edge (2221, 2421) of the second partition portion and / or the third partition portion and the sidewall is 1% to 10% of the inner radius of the cylinder.

2. The oil separator (100) according to claim 1, characterized in that, The third partition extends along the transverse direction of the cylinder, and / or the second partition extends toward the side wall and the bottom wall at an angle of 15 to 75 degrees relative to the transverse direction.

3. The oil separator (100) according to claim 1, characterized in that, The second partition portion and the third partition portion extend from the bottom end of the first partition portion.

4. The oil separator (100) according to any one of claims 1 to 3, characterized in that, A filter assembly (182) is provided at the air intake fitting so that the mixture of oil and refrigerant flows through the filter assembly after flowing out from the bottom port (181a) of the air intake passage (18a), while no filter assembly is provided at the air outlet fitting.

5. The oil separator (100) according to any one of claims 1 to 3, characterized in that, A filter assembly (182) is provided at the air intake fitting so that the mixture of oil and refrigerant flows through the filter assembly after flowing out from the bottom port (181a) of the air intake passage (18a). The filter assembly is constructed as a double-layer filter structure, wherein the mesh count of the inner filter is smaller than that of the outer filter.

6. The oil separator (100) according to any one of claims 1 to 3, characterized in that, The cylinder is a circular cylinder, and the outer edges (2221, 2421) of the second partition and / or the third partition are constructed in an arc shape whose center coincides with the center of the cylinder.

7. The oil separator (100) according to any one of claims 1 to 3, characterized in that, The second partition portion and / or the third partition portion are integrally formed with the first partition portion.

8. The oil separator (100) according to any one of claims 1 to 3, characterized in that, The oil separator is composed of an inlet-side separator (24) and an outlet-side separator (22) that are approximately L-shaped. The inlet-side separator and the outlet-side separator each include a longitudinal extension (241, 221) and a lateral extension (242, 222). The longitudinal extension (241) of the inlet-side separator and the longitudinal extension (221) of the outlet-side separator overlap and connect with each other to form the first separator portion (21). The lateral extension (222) of the outlet-side separator forms the second separator portion (23). The lateral extension (242) of the inlet-side separator forms the third separator portion (25).

9. The oil separator (100) according to any one of claims 1 to 3, characterized in that, The oil separator also includes a float (15) located between the oil separator plate and the bottom wall and at least partially covered by the oil separator plate.

10. The oil separator (100) according to any one of claims 1 to 3, characterized in that, The air inlet and air outlet fittings are respectively configured as an air inlet pipe and an air outlet pipe that pass through the top wall and partially extend into the internal cavity of the cylinder.

11. A refrigeration system, characterized in that, The refrigeration system includes an oil separator (100) according to any one of claims 1 to 10.

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