Oil separator and condenser

Abstract

The utility model provides an oil separator and a condenser. The oil separator comprises a shell, and an air inlet pipe, a flow equalizing plate, a filtering piece and an air outlet part which are arranged on the shell; the flow equalizing plate and the filtering piece are located between the air inlet pipe and the air outlet part. In the length direction of the shell, at least part of the flow equalizing plate is located between the air inlet pipe and the filtering piece, and the flow equalizing plate and the filtering piece are arranged at intervals. The shell comprises a partition plate, an outer shell plate and an end plate. The two end plates are connected to the two opposite ends of the partition plate and the two opposite ends of the shell plate correspondingly. The air inlet pipe is arranged on the shell plate, and the air outlet part is arranged on the partition plate. By means of the arrangement, the oil separator is simple in structure and low in manufacturing cost, gas can evenly flow through the filtering piece during filtering, gas filtering uniformity is guaranteed, the filtering effect is improved, meanwhile, the gas only needs to flow through the flow equalizing plate and the filtering piece, the gas flow speed is not interfered by external factors, and the gas pressure drop is low.

Description

Technical Field

[0001] The present application relates to the field of refrigeration, and in particular to an oil separator and a condenser. Background Art

[0002] With the rapid development of industrial technology, various types of equipment in society are becoming more and more abundant, which greatly facilitates people's lives, especially some air-conditioning equipment, which greatly improves the comfort of people's lives. In order to ensure the normal and continuous operation of air conditioners, chillers are often indispensable. As the "cooling source" of air conditioners, the circulating water inside the air conditioner is cooled to cooling water by internal heat exchange of the chiller, thereby ensuring that the air conditioner can output the required temperature.

[0003] As an important component of the chiller, the oil separator can effectively separate the oil from the high-pressure gas discharged from the compressor, thereby ensuring the safe and efficient operation of the air-conditioning equipment. In the related art, the chiller generally adopts an external centrifugal oil separator, which is large in size, complex in structure, and expensive in cost. In addition, the pressure drop of the gas inside it is large, which leads to a complex structure of the unit and high production cost.

[0004] Therefore, it is necessary to provide an improved oil separator to solve some or all of the above problems. Utility Model Content

[0005] The present application provides an oil separator and a condenser with a simple structure and a small gas pressure drop.

[0006] The present application provides an oil separator, comprising a shell and an air inlet pipe, a flow equalizing plate, a filter element and an air outlet portion arranged on the shell; the flow equalizing plate and the filter element are located between the air inlet pipe and the air outlet portion; in the length direction of the shell, at least part of the flow equalizing plate is located between the air inlet pipe and the filter element, and the flow equalizing plate and the filter element are spaced apart; the shell comprises a partition plate, an outer shell plate and an end plate; two end plates are provided, and are respectively connected to the opposite ends of the partition plate and the opposite ends of the outer shell plate; the air inlet pipe is provided on the outer shell plate, and the air outlet portion is provided on the partition plate.

[0007] Furthermore, the oil separator includes an oil baffle plate; the shell includes a accommodating space formed by the partition plate, the outer shell plate and the end plate; the oil baffle plate is arranged in the accommodating space and is respectively connected to the partition plate and the outer shell plate; the oil baffle plate divides the accommodating space into a refrigerant circulation space and an oil storage space; the refrigerant circulation space is connected to the oil storage space.

[0008] Furthermore, the flow equalizing plate includes a first flow equalizing plate; the first flow equalizing plate is respectively connected to the partition plate and the oil baffle plate; the first flow equalizing plate is located between the intake pipe and the filter element, and is spaced apart from the filter element; the first flow equalizing plate is provided with a plurality of first through holes.

[0009] Furthermore, the flow balancing plate includes a second flow balancing plate; the second flow balancing plate is respectively connected to the partition plate and the oil baffle plate; the second flow balancing plate is located between the air outlet and the filter element, and is spaced apart from the filter element; the second flow balancing plate is provided with a plurality of second through holes.

[0010] Furthermore, the second current equalizing plate is provided with a first fixed edge and a second fixed edge; the first fixed edge is connected to the partition plate, and the second fixed edge is connected to the oil baffle plate; the closest distance A between the second through hole and the first fixed edge is not less than 10 mm and not more than 20 mm; the closest distance B between the second through hole and the second fixed edge is not less than 10 mm and not more than 20 mm.

[0011] Furthermore, the oil baffle plate includes a plate body and a connecting support plate; the connecting support plate extends from the side of the plate body in a direction away from the plate body; the connecting support plate is respectively connected to the partition plate and the outer shell plate, and there is a gap between the plate body and the partition plate and the outer shell plate for liquid to flow into the oil storage space.

[0012] Furthermore, the connecting support plate includes a plurality of first support plates and a plurality of second support plates; the first support plates and the second support plates are respectively located on opposite sides of the plate body; in the length direction of the plate body, a plurality of the first support plates are arranged at intervals and connected to the partition plate, and a plurality of the second support plates are arranged at intervals and connected to the outer shell plate.

[0013] Furthermore, the air inlet pipe includes an upper branch pipe and a lower branch pipe connected to the upper branch pipe; the upper branch pipe is arranged on the outer shell plate, the lower branch pipe is located in the refrigerant flow space, and the injection direction of the lower branch pipe is toward the outer shell plate or the end plate.

[0014] Furthermore, the diameter of the lower branch pipe is greater than the diameter of the upper branch pipe; the upper branch pipe is tangently arranged on the lower branch pipe, and the axis of the upper branch pipe deviates from the axis of the lower branch pipe.

[0015] Furthermore, the air outlet portion includes an air outlet and an oil-blocking convex edge; the air outlet is arranged on the partition plate, the oil-blocking convex edge is arranged around the air outlet, and the oil-blocking convex edge extends from the partition plate into the refrigerant circulation space.

[0016] The present application also provides a condenser, comprising a condensation portion and the oil separator as described above; the oil separator is arranged on the condensation portion, and the condensation portion is connected to the oil separator through the air outlet portion.

[0017] Compared with the prior art, the oil separator of the present application has a simple structure and a low manufacturing cost by providing a shell and an air inlet pipe, a flow equalizing plate, a filter element and an air outlet portion arranged on the shell. Part of the flow equalizing plate is located between the air inlet pipe and the filter element, so that the gas can flow evenly through the filter element during filtering, thereby ensuring the uniformity of gas filtration and improving the filtering effect. At the same time, the gas only needs to flow through the flow equalizing plate and the filter element, and there are no external factors interfering with the gas flow rate, so that the gas pressure drop is lower, which is more in line with the requirements.

[0018] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present specification. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the specification and, together with the description, serve to explain the principles of the specification.

[0020] Figure 1 It is a three-dimensional diagram of the condenser of the present application.

[0021] Figure 2 This is a stereoscopic view of the oil separator in the condenser of the present application with the outer shell plate removed and the lower branch pipe facing the end plate.

[0022] Figure 3 This is a stereoscopic view of the oil separator in the condenser of the present application without the outer shell plate, with the lower branch pipe facing the outer shell plate.

[0023] Figure 4 It is a partial stereogram of the condenser of the present application.

[0024] Figure 5 yes Figure 4 Perspective view of the intake pipe in the oil separator.

[0025] Figure 6 It is a side view of the oil separator in the condenser of the present application without the end plate.

[0026] Figure 7 It is a side view of the second flow equalizing plate in the oil separator of the present application.

[0027] Figure 8 It is a three-dimensional diagram of the oil baffle plate in the oil separator of the present application.

[0028] Explanation of the accompanying figures: 1-shell; 11-partition plate; 12-shell plate; 13-end plate; 14-accommodating space; 141-refrigerant circulation space; 142-oil storage space; 2-inlet pipe; 21-upper branch pipe; 22-lower branch pipe; 3-flow equalizing plate; 31-first flow equalizing plate; 311-first through hole; 32-second flow equalizing plate; 321-second through hole; 322-first fixed edge; 323-second fixed edge; 4-filter element; 5-air outlet; 51-air outlet; 52-oil baffle convex edge; 6-oil baffle plate; 61-plate body; 62-connecting support plate; 621-first support plate; 622-second support plate; 7-condensation part. DETAILED DESCRIPTION

[0029] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementations described in the following exemplary embodiments do not represent all implementations consistent with this specification. Instead, they are merely examples of devices and methods consistent with some aspects of this specification as detailed in the appended claims.

[0030] The terms used in this specification are for the purpose of describing specific embodiments only and are not intended to limit this specification. The singular forms "a", "the" and "the" used in this specification and the appended claims are also intended to include plural forms unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0031] It should be understood that although the terms first, second, third, etc. may be used in this specification to describe various information, this information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of this specification, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the word "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining".

[0032] Next, the embodiments of this specification are described in detail.

[0033] like Figures 1 to 3As shown, the oil separator of the present application includes a housing 1, an air inlet pipe 2, a flow equalizing plate 3, a filter 4 and an air outlet 5. The air inlet pipe 2, the flow equalizing plate 3, the filter 4 and the air outlet 5 are all arranged on the housing 1. Furthermore, the flow equalizing plate 3 and the filter 4 are both arranged in the housing 1 and are located between the air inlet pipe 2 and the air outlet 5. The air flow to be filtered and separated enters the housing 1 through the air inlet pipe 2, and flows out from the air outlet 5 after passing through the flow equalizing plate 3 and the filter 4.

[0034] In one embodiment, the housing 1 includes a partition plate 11, an outer shell plate 12, an end plate 13 and a receiving space 14. Preferably, two end plates 13 are provided, and are respectively connected to opposite ends of the partition plate 11 and opposite ends of the outer shell plate 12. The receiving space 14 is used to receive the airflow, the flow equalizing plate 3 and the filter element 4, and the airflow flows in the receiving space 14. Further, the partition plate 11, the outer shell plate 12 and the end plate 13 are arranged to form the receiving space 14.

[0035] In one embodiment, the air intake pipe 2 is disposed on the outer shell plate 12, and a portion of the air intake pipe 2 extends into the accommodation space 14. Further, the air intake pipe 2 includes an upper branch pipe 21 and a lower branch pipe 22. The upper branch pipe 21 is disposed on the outer shell plate 12, and the lower branch pipe 22 is connected to the upper branch pipe 21 and is located in the accommodation space 14. The injection direction of the lower branch pipe 22 is toward the outer shell plate 12 or the end plate 13.

[0036] This arrangement allows the airflow to directly hit the outer shell plate 12 or the end plate 13 after flowing out of the lower branch pipe 22. Under the impact of the airflow, primary oil separation is performed to separate most of the large oil droplets, facilitating subsequent filtering steps.

[0037] At the same time, the injection direction of the lower branch pipe 22 is preferably set at a right angle to the flow direction of the airflow in the filter element 4, so that the airflow collides with the outer shell plate 12 or the end plate 13 and flows to the filter element 4. At this time, an airflow vortex is formed, and the airflow is further subjected to rotational centrifugal separation, thereby further improving the effect of primary oil separation.

[0038] Of course, under the condition of ensuring the oil separation effect, the spraying direction of the lower branch pipe 22 can also be toward the partition plate 11.

[0039] like Figures 4 to 5 As shown, in another embodiment, the diameter of the lower branch pipe 22 is greater than the diameter of the upper branch pipe 21, and the upper branch pipe 21 is tangentially connected to the lower branch pipe 22, that is, the axis of the upper branch pipe 21 deviates from the axis of the lower branch pipe 22. Further, the upper branch pipe 21 and the lower branch pipe 22 are arranged at an angle, and the angle between the upper branch pipe 21 and the lower branch pipe 22 is not less than 90 degrees. Preferably, the angle between the upper branch pipe 21 and the lower branch pipe 22 is 90 degrees.

[0040] Such arrangement enables the airflow to rotate in the lower branch pipe 22 when it flows from the upper branch pipe 21 to the lower branch pipe 22, thereby throwing the oil out of the airflow to perform primary oil separation. In addition, the diameter of the lower branch pipe 22 is larger than that of the upper branch pipe 21, which increases the rotation space of the airflow, increases the centrifugal force, and thus improves the oil separation effect.

[0041] Further integration Figure 6 and Figure 7 As shown, in one embodiment, the flow equalizer 3 is used to rectify the airflow in the housing 1, thereby changing the irregular flow of the airflow into a regular flow of the airflow, or changing the rotating airflow into a straight flow of the airflow. Figure 1 In the X direction shown, at least part of the flow equalizer 3 is located between the air intake pipe 2 and the filter 4, and the flow equalizer 3 is spaced apart from the filter 4. In this way, the airflow passing through the filter 4 can be rectified in advance, thereby improving the filtering effect of the airflow.

[0042] Specifically, the flow equalizer 3 includes a first flow equalizer 31 and a second flow equalizer 32. The first flow equalizer 31 is located in the accommodating space 14 and is connected to the partition plate 11. The first flow equalizer 31 is located between the air intake pipe 2 and the filter element 4 and is spaced apart from the filter element 4. In this way, the airflow passing through the filter element 4 can be rectified in advance to improve the filtering effect of the airflow.

[0043] The first flow equalizing plate 31 includes a plurality of first through holes 311. Airflow circulates through the first through holes 311. Preferably, the diameters of the plurality of first through holes 311 are the same to ensure a rectifying effect of the airflow.

[0044] The second flow equalizing plate 32 is located in the accommodating space 14 and is connected to the partition plate 11. The second flow equalizing plate 32 is located between the air outlet 5 and the filter element 4, and is spaced apart from the filter element 4, so that the filter element 4 can be located between the first flow equalizing plate 31 and the second flow equalizing plate 32. This arrangement facilitates the airflow flowing out of the filter element 4 to be rectified again, thereby facilitating the airflow to flow to the air outlet 5.

[0045] The second current equalizing plate 32 is provided with a first fixed edge 322, a second fixed edge 323 and a plurality of second through holes 321. The first fixed edge 322 is connected to the partition plate 11. The closest distance A between the first fixed edge 322 and the second through hole 321 is not less than 10 mm and not more than 20 mm, and the closest distance B between the second fixed edge 323 and the second through hole 321 is not less than 10 mm and not more than 20 mm.

[0046] This arrangement is used to block the oil on the inner wall of the housing 1 and prevent the oil from flowing through the second flow equalizing plate 32 and entering the air intake 5. Specifically, the closest distance between the first fixed edge 322 and the second fixed edge 323 and the second through hole 321 is not less than 10 mm, so as to improve the oil blocking effect of the second flow equalizing plate 32 and avoid the oil from crossing the second flow equalizing plate 32 due to a small distance. The closest distance between the first fixed edge 322 and the second fixed edge 323 and the second through hole 321 is not more than 20 mm, so as to avoid reducing the number of the second through holes 321 due to a large distance, thereby affecting the rectification effect of the airflow.

[0047] At the same time, there is a certain distance between the side of the first flow equalizing plate 31 and the first through hole 311, so that the first flow equalizing plate 31 is used to block the initially separated oil to prevent a large amount of oil from entering the filter element 4, thereby reducing the filtering pressure of the filter element 4 and improving the filtering effect.

[0048] In one embodiment, the filter element 4 is used to filter the airflow in the housing 1 so as to filter out particles and oil mixed in the airflow. The filter element 4 is connected to the partition plate 11 and the outer shell plate 12 respectively to filter the airflow in the accommodating space 14 to achieve secondary separation of the oil, and then separate out a small number of large droplets and some small droplets remaining in the airflow.

[0049] In one embodiment, the air outlet portion 5 is disposed on the partition plate 11. The air outlet portion 5 includes an air outlet 51 and an oil-blocking convex edge 52. The air outlet 51 is disposed on the partition plate 11, and the oil-blocking convex edge 52 is also disposed on the partition plate 11 and is disposed around the air outlet 51. The oil-blocking convex edge 52 protrudes from the partition plate 11 into the accommodating space 14 to block the oil on the partition plate 11, thereby preventing the oil on the partition plate 11 from flowing into the air outlet 51.

[0050] Further integration Figure 8 As shown, in one embodiment, the oil separator includes an oil baffle plate 6. The oil baffle plate 6 is located in the accommodating space 14 and is connected to the partition plate 11 and the outer shell plate 12 respectively. The oil baffle plate 6 divides the accommodating space 14 into a refrigerant circulation space 141 and an oil storage space 142. The refrigerant circulation space 141 is connected to the oil storage space 142, and the oil in the refrigerant circulation space 141 can flow into the oil storage space 142. The lower branch pipe 22 is located in the refrigerant circulation space 141, and the oil baffle convex edge 52 protrudes from the partition plate 11 into the refrigerant circulation space 141.

[0051] The first flow balancing plate 31 and the second flow balancing plate 32 are both located in the refrigerant circulation space 141, and are both connected to the oil baffle plate 6. Specifically, the first flow balancing plate 31 and the second flow balancing plate 32 are both arranged in a fan shape, the two straight edges of the first flow balancing plate 31 are respectively connected to the partition plate 11 and the oil baffle plate 6, and the arc edge of the first flow balancing plate 31 is connected to the outer shell plate 12. The second fixed edge 323 of the second flow balancing plate 32 is connected to the oil baffle plate 6, and the arc edge of the second flow balancing plate 32 is connected to the outer shell plate 12.

[0052] In one embodiment, two oil baffles 6 are provided and are located on opposite sides of the filter element 4 in the accommodating space 14. The oil baffle 6 includes a plate body 61 and a connecting support plate 62. The connecting support plate 62 is extended from the side of the plate body 61 in a direction away from the plate body 61. The connecting support plate 62 is connected to the partition plate 11 and the outer shell plate 12 respectively, and one end of the plate body 61 is connected to the filter element 4.

[0053] Since the connecting support plate 62 extends from the side of the plate body 61 and is respectively connected to the partition plate 11 and the outer shell plate 12 , there is a gap between the plate body 61 and the partition plate 11 and the outer shell plate 12 for liquid such as oil to flow into the oil storage space 142 .

[0054] In one embodiment, the connecting support plate 62 includes a plurality of first support plates 621 and a plurality of second support plates 622. The first support plates 621 and the second support plates 622 are respectively located on opposite sides of the plate body 61, the first support plates 621 are connected to the partition plate 11, and the second support plates 622 are connected to the outer shell plate 12.

[0055] In the length direction of the plate body 61, that is, the length direction of the housing 1, that is Figure 6 In the X direction shown, a plurality of first support plates 621 are arranged at intervals, and a plurality of second support plates 622 are arranged at intervals, thereby providing gaps for the oil to flow from the refrigerant circulation space 141 to the oil storage space 142 .

[0056] The present application also provides a condenser, comprising a condensing part 7 and the oil separator as described above. The oil separator is arranged on the condensing part 7, and the condensing part 7 is connected to the oil separator through the air outlet 5, so that the air flow processed in the oil separator can flow into the condensing part 7.

[0057] The working principle of the oil separator of the present application is that the airflow mixed with oil from the exhaust pipe of the compressor enters the refrigerant circulation space 141 from the intake pipe 2, and performs preliminary oil separation after colliding with the outer shell plate 12 or the end plate 13. Then the airflow is rectified at the first flow equalizing plate 31, and the airflow has a horizontal movement before reaching the filter element 4, and then the oil is initially separated by gravity.

[0058] The airflow passes through the filter element 4 to achieve secondary separation, and when passing through the filter element 4, the remaining small part of the large droplets and some small droplets in the airflow are all separated, and the separated oil droplets flow to the oil baffle plate 6, and then flow along the oil baffle plate 6 into the oil storage space 142. The airflow passing through the filter element 4 also has a horizontal movement before flowing to the second flow equalizing plate 32, and then the oil is separated by gravity for a second time. The second flow equalizing plate 32 further ensures that the airflow is evenly distributed again, and at the same time further separates the small oil droplets.

[0059] The second flow equalizing plate 32 is sealed and welded with the partition plate 11 , the outer shell plate 12 and the oil baffle plate 6 . The closest distance between the straight side of the second flow equalizing plate 32 and the second through hole 321 is 10mm-20mm, which prevents part of the oil flowing along the partition plate from flowing to the air outlet 5 .

[0060] Compared with the traditional centrifugal oil separator, the oil separator of the present invention has a higher comprehensive oil separation efficiency, and the pressure drop value of the oil separator of the present invention is only 24% to 60% of that of the traditional centrifugal oil separator, which has great advantages. When the centrifugal oil separator is replaced by the oil separator of the present invention, under the same design cooling capacity, the oil separator of the present invention is more cost-saving, and the greater the design cooling capacity, the greater the cost savings. At the same time, since the pressure drop of the oil separator of the present invention is small, the unit equipped with the oil separator of the present invention can simplify the structure, thereby reducing costs again.

[0061] The oil separator of the present application is simple in structure and low in manufacturing cost by providing a shell 1 and an air inlet pipe 2, a flow equalizing plate 3, a filter element 4 and an air outlet 5 arranged on the shell. The first flow equalizing plate 31 is located between the air inlet pipe 2 and the filter element 4, so that the airflow can flow evenly through the filter element 4 during filtering, thereby ensuring the uniformity of airflow filtration and improving the filtering effect. At the same time, the airflow only needs to flow through the flow equalizing plate 3 and the filter element 4, and there are no external factors interfering with the gas flow rate, so that the gas pressure drop is lower, which is more in line with the requirements.

[0062] The above is only a preferred implementation mode of the present application, and does not constitute any form of limitation to the present application. Although the present application has been disclosed as a preferred implementation mode as above, it is not used to limit the present application. Any technician familiar with this profession can make some changes or modify the technical contents disclosed above into equivalent implementation modes without departing from the scope of the technical solution of the present application. However, any simple modification, equivalent change and modification made to the above implementation modes based on the technical essence of the present application without departing from the content of the technical solution of the present application still fall within the scope of the technical solution of the present application.

Claims

1. An oil separator, characterized in that: It comprises a shell and an air inlet pipe, a flow equalizing plate, a filter element and an air outlet portion arranged on the shell; the flow equalizing plate and the filter element are located between the air inlet pipe and the air outlet portion; in the length direction of the shell, at least part of the flow equalizing plate is located between the air inlet pipe and the filter element, and the flow equalizing plate and the filter element are spaced apart; the shell comprises a partition plate, an outer shell plate and an end plate; two end plates are provided, and are respectively connected to the opposite ends of the partition plate and the opposite ends of the outer shell plate; the air inlet pipe is arranged on the outer shell plate, and the air outlet portion is arranged on the partition plate.

2. The oil separator according to claim 1, characterized in that: The oil separator includes an oil baffle plate; the shell includes a accommodating space formed by the partition plate, the outer shell plate and the end plate; the oil baffle plate is arranged in the accommodating space and is respectively connected to the partition plate and the outer shell plate; the oil baffle plate divides the accommodating space into a refrigerant circulation space and an oil storage space; the refrigerant circulation space is connected to the oil storage space.

3. The oil separator according to claim 2, characterized in that: The flow balancing plate includes a first flow balancing plate; the first flow balancing plate is respectively connected to the partition plate and the oil baffle plate; the first flow balancing plate is located between the intake pipe and the filter element, and is spaced apart from the filter element; the first flow balancing plate is provided with a plurality of first through holes.

4. The oil separator according to claim 2, characterized in that: The flow balancing plate includes a second flow balancing plate; the second flow balancing plate is respectively connected to the partition plate and the oil baffle plate; the second flow balancing plate is located between the air outlet and the filter element, and is spaced apart from the filter element; the second flow balancing plate is provided with a plurality of second through holes.

5. The oil separator according to claim 4, characterized in that: The second current equalizing plate is provided with a first fixed edge and a second fixed edge; the first fixed edge is connected to the partition plate, and the second fixed edge is connected to the oil baffle plate; the closest distance A between the second through hole and the first fixed edge is not less than 10 mm and not more than 20 mm; the closest distance B between the second through hole and the second fixed edge is not less than 10 mm and not more than 20 mm.

6. The oil separator according to claim 2, characterized in that: The oil baffle plate includes a plate body and a connecting support plate; the connecting support plate extends from the side of the plate body in a direction away from the plate body; the connecting support plate is respectively connected to the partition plate and the outer shell plate, and there is a gap between the plate body and the partition plate and the outer shell plate for liquid to flow into the oil storage space.

7. The oil separator according to claim 6, characterized in that: The connecting support plate includes a plurality of first support plates and a plurality of second support plates; the first support plates and the second support plates are respectively located on opposite sides of the plate body; in the length direction of the plate body, a plurality of the first support plates are arranged at intervals and connected to the partition plate, and a plurality of the second support plates are arranged at intervals and connected to the outer shell plate.

8. The oil separator according to claim 2, characterized in that: The air inlet pipe includes an upper branch pipe and a lower branch pipe connected to the upper branch pipe; the upper branch pipe is arranged on the outer shell plate, the lower branch pipe is located in the refrigerant flow space, and the injection direction of the lower branch pipe is toward the outer shell plate or the end plate.

9. The oil separator according to claim 8, characterized in that: The diameter of the lower branch pipe is larger than that of the upper branch pipe; the upper branch pipe is tangently arranged on the lower branch pipe, and the axis of the upper branch pipe deviates from the axis of the lower branch pipe.

10. The oil separator according to claim 2, characterized in that: The air outlet portion includes an air outlet and an oil-blocking convex edge; the air outlet is arranged on the partition plate, the oil-blocking convex edge is arranged around the air outlet, and the oil-blocking convex edge extends from the partition plate into the refrigerant circulation space.

11. A condenser, characterized in that: It comprises a condensation part and an oil separator as claimed in any one of claims 1 to 10; the oil separator is arranged on the condensation part, and the condensation part is connected with the oil separator through the air outlet part.

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