Oil-gas separator and horizontal compressor having the same

Abstract

The present invention provides an oil-gas separator and a horizontal compressor having the same. The oil-gas separator comprises an oil-gas separation body, the oil-gas separation body has a first separation chamber, the first end of the oil-gas separation body is provided with a first air inlet channel and a rotating blade, the first air inlet channel is connected to the first separation chamber, and the second end of the oil-gas separation body is connected to a mounting base; the cover body is sleeved on the outer peripheral side of the oil-gas separation body, and a second separation chamber is formed between the inner wall of the cover body and at least part of the outer peripheral surface of the oil-gas separation body, the oil-gas separation body is provided with a first air outlet channel connected to the second separation chamber, and the cover body is provided with a second air outlet channel and an oil discharge channel. By providing the rotating blades, the temperature of the refrigerant can be effectively reduced, the problem of carbonization of the refrigeration oil can be avoided, and the reliability of the compressor having the oil-gas separator is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of compressor equipment, and in particular to an oil-gas separator and a horizontal compressor having the same. Background Art

[0002] At present, conventional oil-gas separators are all fixed, and use impact folding or rotating centrifugal methods to achieve oil-gas separation. The oil-gas separators in the prior art have the following shortcomings:

[0003] 1. The traditional oil-gas separator is fixedly installed, so the inlet and outlet pipes are stationary. When the kinetic energy of the oil-gas mixture is low, the oil-gas mixture can enter along the inlet pipe and then go out from the exhaust pipe, with poor cyclone separation effect. Therefore, this oil-gas separation method is incomplete. Incomplete oil-gas separation at low frequency leads to high oil circulation rate and low compressor cooling capacity.

[0004] 2. The oil-gas mixture passes through the separation zone and is separated only once by rotation, and the speed is fast and the time is short, making it difficult to separate effectively.

[0005] 3. The high exhaust temperature of the compressor can easily cause carbonization of the refrigerant oil, forming black impurities attached to the inside of the machine, causing increased power consumption. In severe cases, the prototype will be shut down. The traditional oil-gas separator has no heat dissipation function. Summary of the invention

[0006] The main purpose of the present invention is to provide an oil-gas separator and a horizontal compressor having the same, so as to solve the problem in the prior art that the refrigeration oil is easily carbonized due to the high exhaust temperature of the compressor.

[0007] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, an oil-gas separator is provided, comprising: an oil-gas separation body, a first separation chamber is provided in the oil-gas separation body, a first end of the oil-gas separation body is provided with a first air inlet channel and a rotating blade, the first air inlet channel is connected with the first separation chamber, and the second end of the oil-gas separation body is connected with a mounting base; a cover body part, the cover body part is sleeved on the outer peripheral side of the oil-gas separation body, a second separation chamber is formed between the inner wall of the cover body part and at least part of the outer peripheral surface of the oil-gas separation body, a first air outlet channel connected with the second separation chamber is opened on the oil-gas separation body, and the cover body part is provided with a second air outlet channel and an oil discharge channel; wherein, the rotating blade is arranged close to one side of the refrigerant exhaust port, and when the refrigerant is discharged, the rotating blade is driven to drive the oil-gas separation body to rotate relative to the mounting base, so that the refrigerant enters the first separation chamber and the second separation chamber for oil-gas separation operation.

[0008] Furthermore, there are a plurality of rotating blades, and the plurality of rotating blades are arranged at intervals along the outer peripheral surface of the oil-gas separation body.

[0009] Further, the area of ​​the cross section of the first separation chamber is gradually increased from the first end of the oil-gas separation body to the second end of the oil-gas separation body.

[0010] Furthermore, a second air inlet passage is provided at the second end of the oil-gas separation body and is located outside the cover body.

[0011] Furthermore, the second air inlet channel extends along the radial direction of the oil-gas separation body, and a third air outlet channel is opened at the end of the second end of the oil-gas separation body. The third air outlet channel extends along the axial direction of the oil-gas separation body and is connected to the second air inlet channel.

[0012] Furthermore, the installation base includes: a cover plate, a first end of the cover plate is arranged near the refrigerant exhaust port, a second end of the cover plate is provided with an exhaust hole, and the cover plate has a receiving groove; a third partition baffle, the third partition baffle is connected to the cover plate, and a closed receiving chamber is enclosed between the third partition baffle and the receiving groove, the cover body is located in the closed receiving chamber, the second end of the oil and gas separation body is located in the closed receiving chamber, and the first end of the oil and gas separation body extends to the outside of the closed receiving chamber, so that the rotating blades and the first air inlet channel are located outside the closed receiving chamber, the second air inlet channel is connected to the closed receiving chamber, the second air outlet channel is connected to the closed receiving chamber, and the exhaust hole is connected to the third air outlet channel.

[0013] Furthermore, an annular baffle boss is provided on the side of the third partition baffle facing the refrigerant exhaust port, and the rotating blades and the first air inlet channel are located in an annular cavity surrounded by the annular baffle boss.

[0014] Furthermore, the cover body portion includes: a cover body main body, the cover body main body is a barrel-shaped structure with one end open, a sleeve is provided at the bottom of the cover body main body, a second air outlet channel is arranged at the bottom or side wall of the cover body main body, the open end of the cover body main body forms an oil discharge channel, the cover body main body is connected to the oil-gas separation main body through the sleeve, the oil-gas separation main body can drive the cover body main body to be rotatably arranged, or, the inner diameter of the open end of the cover body main body is larger than the outer diameter of the oil-gas separation main body, the cover body main body is connected to at least one of the cover plate and the third partition baffle, and the oil-gas separation main body can be rotatably arranged relative to the cover body main body.

[0015] Furthermore, an oil pool cavity is formed on one side of the closed accommodating cavity, and the oil pool cavity is used to store the oil flowing out from the oil discharge channel. A one-way valve is arranged at the bottom of the oil pool cavity, and the oil in the oil pool cavity flows back to the oil supply cavity through the one-way valve.

[0016] Furthermore, the installation base also includes: a rolling bearing, which is arranged in the receiving groove, and the oil-gas separation body is connected to the cover plate through the rolling bearing.

[0017] Furthermore, the cover body portion includes: a cover body main body, the cover body main body is a barrel-shaped structure with one end open, the cover body main body is connected to the oil and gas separation main body through the open end, the oil and gas separation main body can drive the cover body main body to be rotatable, or, the inner diameter of the open end of the cover body main body is larger than the outer diameter of the oil and gas separation main body, the cover body main body is connected to at least one of the cover plate and the third partition baffle, the oil and gas separation main body can be rotatable relative to the cover body main body, the second air outlet channel is arranged on the bottom or side wall of the cover body, and the oil discharge channel is arranged on the bottom or side wall of the cover body.

[0018] Furthermore, the area of ​​the cross section of the hollow structure of the cover body is gradually increased along the axial direction of the cover body.

[0019] Furthermore, there are a plurality of first air outlet channels, and the plurality of first air outlet channels are arranged at intervals along the circumferential direction of the oil-gas separation body.

[0020] Furthermore, the inlet end of the second air inlet channel is connected to the outlet end of the second air outlet channel.

[0021] According to another aspect of the present invention, a horizontal compressor is provided, comprising an oil-gas separator, and the oil-gas separator is the above-mentioned oil-gas separator.

[0022] By applying the technical solution of the present invention, the oil-gas separator of the present application is used to separate the refrigerant into oil and gas, so that the refrigerant is separated into oil and gas in the first separation chamber and the second separation chamber respectively. This arrangement enables the refrigerant to achieve multiple oil-gas separations, which can effectively reduce the oil content of the separated gas. At the same time, by setting the rotating blades, the temperature of the refrigerant can be effectively reduced, the problem of carbonization of the refrigeration oil is avoided, and the reliability of the compressor with the oil-gas separator is ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0024] Figure 1 A schematic cross-sectional view of a first embodiment of a compressor according to the present invention is shown;

[0025] Figure 2 A schematic cross-sectional view of a second embodiment of a compressor according to the present invention is shown;

[0026] Figure 3 A schematic structural diagram of a first embodiment of an oil-gas separator according to the present invention is shown;

[0027] Figure 4 A schematic cross-sectional view of an embodiment of an oil-gas separator according to the present invention is shown;

[0028] Figure 5 A schematic structural diagram of a second embodiment of an oil-gas separator according to the present invention is shown;

[0029] Figure 6 A structural schematic diagram showing an embodiment of the assembly of a cover plate and an oil-gas separator according to the present invention is shown;

[0030] Figure 7 A schematic structural diagram of an embodiment of a cover plate according to the present invention is shown;

[0031] Figure 8 A schematic cross-sectional structure diagram of an embodiment of a cover plate according to the present invention is shown;

[0032] Fig. 9 A schematic structural diagram of an embodiment of a third partition baffle according to the present invention is shown;

[0033] Fig.10 A schematic structural diagram of an embodiment of a rotary blade according to the present invention is shown;

[0034] Fig.11 A schematic structural diagram of an embodiment of a one-way valve according to the present invention is shown;

[0035] Fig.12 A schematic diagram of the structure of a one-way valve according to an embodiment of the present invention is shown;

[0036] Fig.13 A schematic cross-sectional view of an embodiment of a cover body according to the present invention is shown;

[0037] Fig.14 A schematic diagram of the top view of the cover body according to an embodiment of the present invention is shown.

[0038] The above drawings include the following reference numerals:

[0039] 1. Oil-gas separation body; 11. First air inlet passage; 12. Rotating blades; 121. Screw fixing hole; 122. Semicircular hole;

[0040] 13. First air outlet channel; 14. Second air inlet channel; 15. Third air outlet channel; 16. Conical cavity;

[0041] 2. Rolling bearings;

[0042] 3. hood body; 31. second air outlet channel; 32. sleeve opening; 33. hood body;

[0043] 4. One-way valve; 41. Valve port; 42. Spring; 43. Piston; 44. Oil inlet; 45. Base plate;

[0044] 5. Third partition baffle; 51. Baffle boss; 52. Screw fixing hole; 53. Sealing hole;

[0045] 6. Cover plate; 61. First fixing frame; 62. Second fixing frame; 63. Screw hole; 64. Exhaust hole; 65. Oil pool cavity;

[0046] 7. Fixing screws;

[0047] 8. Fixing screws; 9. Oil pool chamber; 10. First partition baffle; 17. Second partition baffle; 18. Fourth partition baffle. DETAILED DESCRIPTION

[0048] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0049] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0050] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0051] Now, exemplary embodiments according to the present application will be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments may be implemented in a variety of different forms and should not be construed as being limited to the embodiments described herein. It should be understood that these embodiments are provided to make the disclosure of the present application thorough and complete, and to fully convey the concepts of these exemplary embodiments to those of ordinary skill in the art. In the accompanying drawings, for the sake of clarity, the thickness of the layers and regions may be enlarged, and the same reference numerals are used to represent the same devices, and thus their descriptions will be omitted.

[0052] Combination Figures 1 to 14 As shown, according to a specific embodiment of the present application, an oil-gas separator is provided.

[0053] Specifically, Figures 1 to 5 As shown, the oil-gas separator includes an oil-gas separation body 1 and a cover body 3. The oil-gas separation body 1 has a first separation chamber, and the first end of the oil-gas separation body 1 is provided with a first air inlet channel 11 and a rotating blade 12. The first air inlet channel 11 is connected to the first separation chamber, and the second end of the oil-gas separation body 1 is connected to the mounting base. The cover body 3 is sleeved on the outer peripheral side of the oil-gas separation body 1, and a second separation chamber is formed between the inner wall of the cover body 3 and at least part of the outer peripheral surface of the oil-gas separation body 1. The oil-gas separation body 1 is provided with a first air outlet channel 13 connected to the second separation chamber, and the cover body 3 is provided with a second air outlet channel 31 and an oil discharge channel. Among them, the rotating blade 12 is arranged near the side of the refrigerant exhaust port. When the refrigerant is discharged, the rotating blade 12 is driven to drive the oil-gas separation body 1 to rotate relative to the mounting base, so that the refrigerant enters the first separation chamber and the second separation chamber for oil-gas separation operation.

[0054] The oil-gas separator of the present application is used to separate the refrigerant into oil and gas, so that the refrigerant is separated into oil and gas in the first separation chamber and the second separation chamber respectively. This arrangement enables the refrigerant to achieve multiple oil-gas separations, which can effectively reduce the oil content of the separated gas. At the same time, by setting the rotating blades 12, the temperature of the refrigerant can be effectively reduced, the problem of carbonization of the refrigeration oil is avoided, and the reliability of the compressor with the oil-gas separator is ensured.

[0055] There are multiple rotating blades 12, and the multiple rotating blades 12 are arranged at intervals along the outer peripheral surface of the oil-gas separation body 1. Such an arrangement can drive the refrigerant to move toward the first air inlet channel 11, thereby increasing the flow speed of the refrigerant.

[0056] In order to improve the oil-gas separation function of the oil-gas separation body 1, the cross-sectional area of ​​the first separation chamber is gradually increased from the first end of the oil-gas separation body 1 to the second end of the oil-gas separation body 1. This arrangement can increase the collision area between the refrigerant and the inner side wall of the first separation chamber.

[0057] like Figure 4As shown, the second end of the oil-gas separation body 1 is also provided with a second air inlet channel 14 and is located outside the cover body 3. The second air inlet channel 14 is extended in the radial direction of the oil-gas separation body 1, and a third air outlet channel 15 is provided at the end of the second end of the oil-gas separation body 1. The third air outlet channel 15 is extended in the axial direction of the oil-gas separation body 1 and is connected to the second air inlet channel 14. This arrangement allows the refrigerant separated from the second separation chamber to enter the second end of the oil-gas separation body 1 through the second air inlet channel 14, and then be discharged out of the oil-gas separator through the third air outlet channel 15.

[0058] In this embodiment, the installation base includes a cover plate 6 and a third partition baffle 5. The first end of the cover plate 6 is arranged near the refrigerant exhaust port, the second end of the cover plate 6 is provided with an exhaust hole 64, and the cover plate 6 has a receiving groove. The third partition baffle 5 is connected to the cover plate 6, and a closed receiving chamber is formed between the third partition baffle 5 and the receiving groove. The cover body 3 is located in the closed receiving chamber, the second end of the oil-gas separation main body 1 is located in the closed receiving chamber, and the first end of the oil-gas separation main body 1 extends to the outside of the closed receiving chamber, so that the rotating blades 12 and the first air inlet channel 11 are located outside the closed receiving chamber, the second air inlet channel 14 is connected to the closed receiving chamber, the second air outlet channel 31 is connected to the closed receiving chamber, and the exhaust hole 64 is connected to the third air outlet channel 15. Such an arrangement can improve the reliability of the oil-gas separator. Among them, in the compressor, one end of the cover plate 6 can be connected to the compressor housing.

[0059] Preferably, an annular baffle boss 51 is provided on the side of the third partition baffle 5 facing the refrigerant exhaust port, and the rotating blades 12 and the first air inlet channel 11 are located in an annular cavity surrounded by the annular baffle boss 51. This arrangement enables the rotating blades to form a flowing airflow in the annular cavity when rotating, so as to increase the speed at which the refrigerant enters the first air inlet channel 11.

[0060] like Fig.13 As shown, the cover body portion 3 includes a cover body main body 33. The cover body main body 33 is a barrel-shaped structure with one end open, and a sleeve 32 is provided at the bottom of the cover body main body 33. The second air outlet channel 31 can be arranged at the bottom of the cover body main body 33 or on the side wall, and the open end of the cover body main body 33 forms an oil discharge channel. The cover body main body 33 is connected to the oil-gas separation main body 1 through the sleeve 32, and the oil-gas separation main body 1 can drive the cover body main body 33 to be rotatably arranged. Alternatively, the inner diameter of the open end of the cover body main body 33 can also be set to be larger than the outer diameter of the oil-gas separation main body 1, and the cover body 33 is connected to at least one of the cover plate 6 and the third partition baffle 5, and the oil-gas separation main body 1 can be rotatably arranged relative to the cover body main body 33. Such an arrangement can also achieve the effect of separating the refrigerant multiple times.

[0061] Furthermore, an oil pool chamber 9 is formed on one side of the sealed accommodation chamber, and the oil pool chamber 9 is used to store the oil flowing out from the oil discharge channel. A one-way valve 4 is provided at the bottom of the oil pool chamber 9, and the oil in the oil pool chamber 9 flows back to the oil supply chamber through the one-way valve 4. This arrangement can prevent the oil in the oil pool at the bottom of the compressor from flowing back into the oil pool chamber 9.

[0062] In order to reduce the friction force when the oil-gas separation body 1 rotates, the installation base further includes a rolling bearing 2. The rolling bearing 2 is arranged in the receiving groove, and the oil-gas separation body 1 is connected to the cover plate 6 through the rolling bearing 2.

[0063] According to another embodiment of the present application, the cover body 3 includes a cover body 33, the cover body 33 is a barrel-shaped structure with one end open, the cover body 33 is connected to the oil-gas separation body 1 through the open end, and the oil-gas separation body 1 can drive the cover body 33 to rotate. Alternatively, the inner diameter of the open end of the cover body 33 can be larger than the outer diameter of the oil-gas separation body 1, the cover body 33 is connected to at least one of the cover plate 6 and the third partition baffle 5, the oil-gas separation body 1 can be rotatably arranged relative to the cover body 33, the second air outlet channel 31 is arranged on the bottom or side wall of the cover body 33, and the oil discharge channel is arranged on the bottom or side wall of the cover body 33. Such an arrangement enables the oil body entering the cover body 3 to perform sufficient oil-gas separation operations, effectively reducing the oil content of the separated gas.

[0064] like Fig.13 As shown, the cross-sectional area of ​​the hollow structure of the cover body 33 is gradually increased along the axial direction of the cover body 33 and close to the bottom side of the cover body 33. Alternatively, the cross-sectional area of ​​the hollow structure of the cover body 33 can also be gradually increased along the axial direction of the cover body 33 and away from the bottom side of the cover body 33.

[0065] Preferably, there are a plurality of first outlet channels 13 , and the plurality of first outlet channels 13 are arranged at intervals along the circumference of the oil-gas separation body 1 . The inlet end of the second inlet channel 14 is connected to the outlet end of the second outlet channel 31 .

[0066] The oil-gas separator in the above embodiment can be used in the technical field of compressor equipment. That is, according to another aspect of the present invention, a horizontal compressor is provided, including an oil-gas separator, and the oil-gas separator is the oil-gas separator in the above embodiment.

[0067] Specifically, the present application proposes an oil-gas separator for a vehicle-mounted scroll compressor, and the device is installed inside the front cover of the compressor. The oil-gas separator assembly consists of an oil-gas separator, a rolling bearing, a partition baffle, a rotating outer cover, i.e., a cover body, a one-way valve, and a front cover, i.e., a cover plate 6. Among them, the oil-gas separator includes a rotating blade, an annular groove, a first air inlet channel, a second air inlet channel, a first air outlet channel, and a second air outlet channel. The rolling bearing is installed on the bearing hole of the front cover. The upper end of the oil-gas separator is interference-fitted with the rolling bearing, so that the oil-gas separator can rotate. The front cover has a cylindrical convex wall. The partition baffle is fixed to the end face of the convex wall by threads, and the oil-gas separator is divided into a power part and an action part. The power part is the part of the oil-gas separator that generates rotational power, and the action part is the part of the oil-gas separator that realizes the separation of the oil-gas mixture. The rotating outer cover is sleeved on the oil-gas separator and participates in the process of oil separation rotation. The lower end of the oil-gas separator has a unique channel for gas to enter the oil-gas separator, which is called the first air inlet channel. Before the gas enters the first air inlet channel, the airflow must first drive the blades to rotate, and the oil-gas separator begins to rotate. During the rotation of the blades, the compressor dissipates heat. At the same time, the gas enters the oil-gas separator, and the internal fluid swirls as the oil-gas separator rotates, and the centrifugal force increases as the diameter of the inner cavity increases. The oil-gas mixture is thrown out from the first outlet channel under the action of centrifugal force and hits the rotating outer cover. The oil droplets are heavy and fall into the oil chamber inside the front cover under the action of gravity. The gas is folded out from the second outlet channel, forming the first stage of oil-gas separation; the oil-gas mixture discharged from the first outlet channel swirls on the inner side of the rotating outer cover, and the oil is thrown out along the large diameter direction of the rotating outer cover under the action of centrifugal force, and the gas is discharged from the second outlet channel, forming the second stage of oil-gas separation. The oil separated from the oil-gas mixture is finally discharged from the one-way valve and returned to the oil tank inside the compressor.

[0068] The high exhaust temperature of the compressor in the prior art can easily cause carbonization of the refrigeration oil, forming black impurities attached to the inside of the machine, causing increased power consumption. In severe cases, the prototype will be shut down. The traditional oil-gas separator has no heat dissipation function. The traditional oil-gas separator is fixedly installed, so the air inlet and outlet pipes are both stationary. When the kinetic energy of the oil-gas mixture is low, the oil-gas mixture can enter along the air inlet pipe and then go out from the exhaust pipe, with poor cyclone effect. Therefore, this oil-gas separation method is incomplete. The oil-gas separation is incomplete at low frequency, resulting in a high oil circulation rate and low compressor cooling capacity. The oil-gas mixture passes through the separation zone and is only separated by rotation once, and the speed is fast and the time is short, making it difficult to separate effectively. With the technical solution of the present application, the oil-gas separator has its own heat dissipation blades, which can be driven to rotate automatically by the internal airflow, play a heat dissipation effect, and reduce the loss caused by the excessively high internal temperature of the compressor. At the same time, the oil-gas separator can realize multi-stage separation of the oil-gas mixture, and the separation effect is better.

[0069] The oil-gas separator in this application can effectively solve the problem of poor oil-gas separation effect at low frequency. The centrifugal force generated by the oil-gas mixture during the first stage of oil-gas cyclone can form the power for the oil-gas mixture to cut into the inner side of the rotating outer cover, which is conducive to better cyclone separation of the oil-gas mixture.

[0070] The oil-gas separator is installed inside the front cover of the compressor, and the oil-gas separator includes a rotating outer cover, a first partition baffle 10, a second partition baffle 17, a third partition baffle 5, a fourth partition baffle 18, a rolling bearing 2, a one-way valve 4, a front cover, and a fixing screw 7. Among them, the oil-gas separation body includes an annular groove, a first air inlet channel, a second air inlet channel, a first air outlet channel, a third air outlet channel, and a conical cavity 16. The rotating outer cover is made of rubber material and has several second air outlet channels, a sleeve, and a variable diameter cone structure. The first partition baffle and the second partition baffle have a flat plate, a semicircular hole 122, and a screw fixing hole (52, 121). The third partition baffle and the fourth partition baffle have a flat plate, a baffle boss, a screw fixing hole 52, and a sealing hole 53. The front cover has a bearing mounting hole, an exhaust hole 64, a first fixing frame 61, a second fixing frame 62, a valve cavity, a valve port, a screw hole 63, and an oil pool cavity 65. The first fixing frame of the front end cover has a bearing hole and several screw holes, the second fixing frame has several screw fixing holes, the upper end of the oil-gas separator is interference fit with the rolling bearing, and the rolling bearing is installed on the bearing hole of the front end cover. The oil-gas separator as a whole has the freedom of rotation, and the sleeve of the rotating outer cover is installed on the annular groove of the oil-gas separator. The first air outlet channel of the oil-gas separator is exposed a certain distance than the second air outlet channel of the rotating outer cover. The first partition baffle and the second partition baffle are combined and fixed on the first fixing frame of the front end cover, and the third partition baffle and the fourth baffle are fixedly combined and fixed on the second fixing frame of the front end cover. The rotating blades of the oil-gas separator are located at or near the upper end of the exhaust channel of the compressor pump body.

[0071] The lower end of the oil-gas separator has a unique channel for gas to enter the oil-gas separator, which is called the first air inlet channel. Before the gas enters the first air inlet channel, the airflow drives the blades to rotate. At the same time, the gas enters the oil-gas separator, and as the oil-gas separator rotates, the internal fluid swirls, and the centrifugal force increases with the increase of the inner cavity diameter. The oil-gas mixture is thrown out from the first outlet channel under the action of centrifugal force and hits the rotating outer cover. The oil droplets are heavy and fall into the oil cavity inside the front cover under the action of gravity. The gas is folded out from the second outlet channel, forming the first stage of oil-gas separation; the oil-gas mixture discharged from the first outlet channel swirls on the inner side of the rotating outer cover, and the oil is thrown out along the large diameter direction of the rotating outer cover under the action of centrifugal force. The gas is discharged from the second outlet channel, forming the second stage of oil-gas separation. The oil separated from the oil-gas mixture is finally discharged from the one-way valve and returned to the oil tank inside the compressor.

[0072] The one-way valve is composed of a piston 43, a spring 42, and a base plate 45, and is installed in the valve cavity of the front cover. The refrigeration oil pushes the piston downward under the action of gravity and flows into the oil cavity of the front cover from the valve port 41. The one-way valve has an oil inlet 44.

[0073] In this application, the installation of the oil-gas separator of the compressor can be achieved through the following steps:

[0074] Step 1: Install the bearing. Install the rolling bearing in the bearing hole of the front cover.

[0075] Step 2: Install the rotating cover. The sleeve of the rotating cover is installed on the annular groove of the oil-gas separator. The first outlet channel of the oil-gas separator should be exposed a certain distance from the second outlet channel of the rotating cover.

[0076] Step 3: Install the oil-gas separator. The upper end of the oil-gas separator is interference fit with the rolling bearing, and the oil-gas separator as a whole has the freedom of rotation.

[0077] Step 4: Install the partition baffle. Install the first partition baffle and the second partition baffle on the first fixing bracket of the front cover, and tighten the fixing screws.

[0078] Step 5: Install the one-way valve. The one-way valve base plate and the front cover valve cavity have an interference fit. The refrigerant oil enters from the oil inlet of the one-way valve, and the piston is pushed down by gravity, and flows into the oil cavity of the front cover from the valve port.

[0079] Step 6: Install the partition baffles. Install the third and fourth partition baffles on the second fixing bracket of the front cover and tighten the fixing screws.

[0080] Step 7: Install the oil separator assembly. The oil separator assembly is installed on the horizontal compressor. The lower end of the oil-gas separator has a unique channel for gas to enter the oil-gas separator, which is called the first air inlet channel.

[0081] Step 8: Start the compressor. The gas enters the first air inlet channel, and the airflow drives the blades to rotate. At the same time, the gas enters the oil-gas separator. As the oil-gas separator rotates, the internal fluid swirls, and the centrifugal force increases with the increase of the inner cavity diameter. The oil-gas mixture is thrown out from the first outlet channel under the action of centrifugal force and hits the rotating outer cover. The oil droplets are heavy and fall into the oil chamber inside the front cover under the action of gravity. The gas is folded out from the second outlet channel, forming the first stage of oil-gas separation; the oil-gas mixture discharged from the first outlet channel swirls on the inner side of the rotating outer cover, and the oil is thrown out along the large diameter direction of the rotating outer cover under the action of centrifugal force. The gas is discharged from the second outlet channel, forming the second stage of oil-gas separation. The oil separated from the oil-gas mixture is finally discharged from the one-way valve and returned to the oil tank inside the compressor.

[0082] The direction of the first air outlet channel of the oil-gas separator can be changed, such as diagonally downward, and the second air outlet channel of the rotating cover can be connected with the second air inlet channel of the oil-gas separator to realize various combinations of oil separation structures.

[0083] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0084] In addition to the above, it should be noted that "one embodiment", "another embodiment", "embodiment", etc. mentioned in this specification refer to the specific features, structures or characteristics described in conjunction with the embodiment included in at least one embodiment generally described in this application. The same expression appearing in multiple places in the specification does not necessarily refer to the same embodiment. Further, when describing a specific feature, structure or characteristic in conjunction with any embodiment, it is claimed that the realization of such feature, structure or characteristic in conjunction with other embodiments also falls within the scope of the present invention.

[0085] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0086] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An oil-gas separator, characterized in that: include: An oil-gas separation body (1), wherein the oil-gas separation body (1) has a first separation chamber, a first air inlet passage (11) and a rotating blade (12) are provided at a first end of the oil-gas separation body (1), the first air inlet passage (11) is connected to the first separation chamber, and a second end of the oil-gas separation body (1) is connected to a mounting base; a cover body (3), the cover body (3) being sleeved on the outer peripheral side of the oil-gas separation body (1), a second separation chamber being formed between the inner wall of the cover body (3) and at least a portion of the outer peripheral surface of the oil-gas separation body (1), a first air outlet passage (13) being provided on the oil-gas separation body (1) and being connected to the second separation chamber, and the cover body (3) being provided with a second air outlet passage (31) and an oil discharge passage; The rotating blade (12) is arranged near one side of the refrigerant exhaust port, and when the refrigerant is discharged, the rotating blade (12) is driven to drive the oil-gas separation body (1) to rotate relative to the mounting base, so that the refrigerant enters the first separation chamber and the second separation chamber to perform an oil-gas separation operation.

2. The oil-gas separator according to claim 1, characterized in that: There are a plurality of rotating blades (12), and the plurality of rotating blades (12) are arranged at intervals along the outer peripheral surface of the oil-gas separation body (1).

3. The oil-gas separator according to claim 1, characterized in that: The cross-sectional area of ​​the first separation chamber is gradually increased from the first end of the oil-gas separation body (1) to the second end of the oil-gas separation body (1).

4. The oil-gas separator according to claim 1, characterized in that: The second end of the oil-gas separation body (1) is also provided with a second air inlet passage (14) which is located outside the cover portion (3).

5. The oil-gas separator according to claim 4, characterized in that: The second air inlet channel (14) is extended in the radial direction of the oil-gas separation body (1), and a third air outlet channel (15) is provided at the end of the second end of the oil-gas separation body (1). The third air outlet channel (15) is extended in the axial direction of the oil-gas separation body (1) and is in communication with the second air inlet channel (14).

6. The oil-gas separator according to claim 5, characterized in that: The installation base includes: A cover plate (6), wherein a first end of the cover plate (6) is arranged close to the refrigerant exhaust port, a second end of the cover plate (6) is provided with an exhaust hole (64), and the cover plate (6) has a receiving groove; a third partition baffle (5), the third partition baffle (5) being connected to the cover plate (6), a closed accommodating chamber being formed between the third partition baffle (5) and the accommodating groove, the cover body (3) being located in the closed accommodating chamber, the second end of the oil-gas separation body (1) being located in the closed accommodating chamber, the first end of the oil-gas separation body (1) extending outside the closed accommodating chamber so that the rotating blade (12) and the first air inlet channel (11) are located outside the closed accommodating chamber, the second air inlet channel (14) being connected to the closed accommodating chamber, the second air outlet channel (31) being connected to the closed accommodating chamber, and the exhaust hole (64) being connected to the third air outlet channel (15).

7. The oil-gas separator according to claim 6, characterized in that: An annular baffle boss (51) is provided on the side of the third partition baffle (5) facing the refrigerant exhaust port, and the rotating blades (12) and the first air inlet channel (11) are located in an annular cavity surrounded by the annular baffle boss (51).

8. The oil-gas separator according to claim 6, characterized in that: The cover body (3) comprises: A cover body (33), the cover body (33) is a barrel-shaped structure with one end open, a sleeve (32) is provided at the bottom of the cover body (33), the second air outlet channel (31) is arranged at the bottom or side wall of the cover body (33), the open end of the cover body (33) forms the oil discharge channel, the cover body (33) is connected to the oil-gas separation body (1) through the sleeve (32), the oil-gas separation body (1) can drive the cover body (33) to be rotatably arranged, or the inner diameter of the open end of the cover body (33) is larger than the outer diameter of the oil-gas separation body (1), the cover body (33) is connected to at least one of the cover plate (6) and the third partition baffle (5), and the oil-gas separation body (1) can be rotatably arranged relative to the cover body (33).

9. The oil-gas separator according to claim 6, characterized in that: An oil pool cavity (9) is formed on one side of the sealed accommodating cavity. The oil pool cavity (9) is used to store the oil flowing out of the oil discharge passage. A one-way valve (4) is provided at the bottom of the oil pool cavity (9). The oil in the oil pool cavity (9) flows back to the oil supply cavity through the one-way valve (4).

10. The oil-gas separator according to claim 6, characterized in that: The installation base also includes: A rolling bearing (2), wherein the rolling bearing (2) is arranged in the containing groove, and the oil-gas separation body (1) is connected to the cover plate (6) via the rolling bearing (2).

11. The oil-gas separator according to claim 6, characterized in that: The cover body (3) comprises: A cover body (33), wherein the cover body (33) is a barrel-shaped structure with one end open, the cover body (33) is connected to the oil-gas separation body (1) through the open end, the oil-gas separation body (1) can drive the cover body (33) to be rotatably arranged, or the inner diameter of the open end of the cover body (33) is larger than the outer diameter of the oil-gas separation body (1), the cover body (33) is connected to at least one of the cover plate (6) and the third partition baffle (5), the oil-gas separation body (1) can be rotatably arranged relative to the cover body (33), the second air outlet channel (31) is arranged on the bottom or side wall of the cover body (33), and the oil discharge channel is arranged on the bottom or side wall of the cover body (33).

12. The oil-gas separator according to claim 11, characterized in that: The area of ​​the cross section of the hollow structure of the cover body (33) is arranged to gradually increase along the axial direction of the cover body (33).

13. The oil-gas separator according to claim 1, characterized in that: There are a plurality of first air outlet channels (13), and the plurality of first air outlet channels (13) are arranged at intervals along the circumference of the oil-gas separation body (1).

14. The oil-gas separator according to claim 4, characterized in that: The inlet end of the second air inlet channel (14) is connected to the outlet end of the second air outlet channel (31).

15. A horizontal compressor, comprising an oil-gas separator, characterized in that: The oil-gas separator is the oil-gas separator according to any one of claims 1 to 14.

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