Oil separator and air conditioner

Abstract

The utility model discloses an oil separator and an air conditioner. The oil separator comprises an oil return pipe, a convection pipe and a control valve which are connected with one another, an annular pipe communicated with the convection pipe is arranged on the outer side wall of the oil return pipe in a surrounding mode, a vortex chamber is formed in an inner cavity of the annular pipe, and the air inlet pipe is arranged on the outer side wall of the annular pipe and communicated with the vortex chamber. The control valve comprises a control valve shell and a valve body arranged in the control valve shell. A discharge port is formed in one end, away from the convection tube, of the control valve shell; the other end of the control valve shell is communicated with an inner cavity of the convection tube; the valve main body is communicated with the discharge port; the oil return pipe penetrates through the vortex chamber and is communicated with the convection pipe, and a plurality of valve body through holes are formed in the position, opposite to a backflow inlet of the oil return pipe, of the valve body. According to the utility model, the vortex chamber is arranged, so that a mixture entering the vortex chamber forms a rotating vortex in the vortex chamber, and then the separation of refrigerant oil and refrigerant in a gas state is realized under the adjustment of the control valve.

Description

Technical Field

[0001] The utility model relates to the technical field of air-conditioning equipment, in particular to an oil separator and an air-conditioner. Background Art

[0002] The compressor is a driven fluid machine that compresses low-temperature and low-pressure gas to high-temperature and high-pressure gas. It is the heart of the air-conditioning system. The parts in the compressor will generate friction loss and heat during movement. In order to reduce friction loss and heat, a proper amount of refrigeration oil is usually injected to soak the pump body parts. Injecting a proper amount of refrigeration oil can play a role in lubrication and cooling. In addition to playing a role in lubrication and cooling, refrigeration oil also has sealing, insulation, and quiet effects. However, during the refrigeration process, the overall temperature of the compressor rises, causing the refrigeration oil to vaporize. The vaporized refrigeration oil will mix with the refrigerant gas to form a mixture. When exhausting, the mixture is discharged into the air-conditioning system pipeline. On the one hand, the refrigeration oil in the mixture condenses in the air-conditioning system pipeline, causing the pipeline to be blocked, resulting in a decrease in the heat exchange efficiency of the refrigerant in the pipeline; on the other hand, the lack of a large amount of refrigeration oil causes insufficient lubrication of the compressor, resulting in increased wear, and poor sealing, cooling and other effects.

[0003] Therefore, the existing air conditioner has the problem of high oil discharge rate. Utility Model Content

[0004] The utility model aims to provide an oil separator and an air conditioner, aiming to solve the problem of high oil discharge rate of the existing air conditioner.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is as follows: an oil separator is provided, the oil separator comprising an oil return pipe, a convection pipe and a control valve connected to each other; wherein an annular pipe connected to the convection pipe is arranged around the outer wall of the oil return pipe, the inner cavity of the annular pipe forms a vortex chamber, and an air intake pipe is arranged on the outer wall of the annular pipe and connected to the vortex chamber;

[0006] The control valve comprises a control valve housing and a valve body arranged in the control valve housing; an end of the control valve housing away from the convection tube is provided with a discharge port; the other end of the control valve housing is communicated with the inner cavity of the convection tube; the valve body is communicated with the discharge port;

[0007] The oil return pipe passes through the vortex chamber and is in communication with the convection pipe. A plurality of valve body through holes are provided at a position of the valve body opposite to a return inlet of the oil return pipe.

[0008] Furthermore, the inner cavity of the convection tube forms a convection tube through hole;

[0009] The upper end surface of the annular tube is provided with a vortex hole, and the annular tube is connected with the convection tube through hole through the vortex hole.

[0010] Furthermore, the valve body includes a first valve body and a second valve body connected to the first valve body, and the second valve body is arranged on a side close to the discharge port;

[0011] A plurality of valve body through holes are arranged on the circumference of the second valve body. The plurality of valve body through holes are evenly arranged along the circumference of the second valve body. The valve body through holes are all connected to the discharge port.

[0012] Furthermore, the first valve body is a conical structure, the second valve body is a cylindrical structure, and the cross-sectional radius of the first valve body decreases gradually toward one end of the oil return pipe;

[0013] A cross-sectional radius of the second valve body is greater than a bottom radius of the second valve body.

[0014] Furthermore, the oil return pipe is provided with an oil return pipe through hole penetrating the oil return pipe;

[0015] The first valve body is located directly above the oil return pipe through hole.

[0016] Further, the outer side wall of the first valve body and the inner side wall of the control valve housing are combined to form a first control valve cavity;

[0017] The outer side wall of the second valve body and the inner side wall of the control valve housing are combined to form a second control valve cavity;

[0018] The first control valve cavity is communicated with the second control valve cavity.

[0019] Furthermore, a connecting piece is provided at one end of the convection tube close to the control valve, and the convection tube is fixedly connected to the control valve via the connecting piece.

[0020] In order to achieve the above-mentioned purpose, another technical solution adopted by the utility model is: to provide an air conditioner, the air conditioner includes a compressor, a condenser and the oil separator.

[0021] Further, the compressor includes a compressor housing and a compressor motor disposed in the compressor housing;

[0022] The inner side walls of the compressor housing are combined to form a compressor cavity;

[0023] The upper end of the compressor housing is provided with a compressor discharge port, and the compressor cavity is connected to the compressor discharge port;

[0024] One end of the air inlet pipe away from the annular pipe is connected to the compressor discharge port;

[0025] One end of the oil return pipe away from the annular pipe is connected to the compressor cavity;

[0026] One end of the discharge port away from the control valve is communicated with the condenser.

[0027] Further, the oil separator is arranged in the compressor housing;

[0028] The oil separator is arranged at the lower end of the compressor discharge port, the compressor discharge port is sleeved on the outer side wall of the discharge port, and the compressor discharge port is communicated with the discharge port.

[0029] The utility model discloses an oil separator and an air conditioner, the oil separator comprising a return oil pipe, a convection pipe and a control valve connected to each other; wherein, an annular pipe connected to the convection pipe is arranged around the outer wall of the return oil pipe, the inner cavity of the annular pipe forms a vortex chamber, and an air intake pipe is arranged on the outer wall of the annular pipe and connected to the vortex chamber; the control valve comprises a control valve housing and a valve body arranged in the control valve housing; a discharge port is arranged at one end of the control valve housing away from the convection pipe; the other end of the control valve housing is connected to the inner cavity of the convection pipe; the valve body is connected to the discharge port; the return oil pipe passes through the vortex chamber and is connected to the convection pipe, and a plurality of valve body through holes are arranged at a position opposite to the return inlet of the return oil pipe. The utility model provides a vortex chamber so that the mixture entering the vortex chamber forms a rotating vortex in the vortex chamber, and then under the adjustment of the control valve, the separation of the refrigeration oil and the refrigerant in the gas state is realized, the oil discharge amount of the compressor is reduced, the service life of the compressor is increased, and the refrigeration oil condensation and adhesion on the inner wall of the pipeline are effectively prevented, thereby improving the heat exchange effect of the air conditioner pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0031] Figure 1 A schematic diagram of an oil separator provided in an embodiment of the utility model;

[0032] Figure 2 A schematic diagram of the first part of the oil separator provided by an embodiment of the utility model;

[0033] Figure 3A schematic diagram of the second part of the oil separator provided by the embodiment of the utility model;

[0034] Figure 4 A schematic diagram of the fluid flow direction of the oil separator provided in an embodiment of the utility model;

[0035] Figure 5 A schematic diagram of an air conditioner provided by an embodiment of the utility model;

[0036] Figure 6 Another schematic diagram of an air conditioner provided in an embodiment of the utility model.

[0037] Among them, the reference numerals in the figures are as follows:

[0038] 10. Air conditioner; 100. Oil separator; 110. Oil return pipe; 120. Ring pipe; 130. Convection pipe; 131. Connector; 140. Control valve; 141. Control valve housing; 142. Valve body; 1421. First valve body; 1422. Second valve body; 150. Exhaust port; 160. Inlet pipe; 200. Compressor; 210. Compressor housing; 220. Compressor motor; 211. Compressor exhaust port; 300. Condenser. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0040] It should be understood that when used in this specification and the appended claims, the terms "include" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or combinations thereof.

[0041] It should also be understood that the terms used in the utility model specification are only for the purpose of describing specific embodiments and are not intended to limit the utility model. As used in the utility model specification and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

[0042] It should be further understood that the term “and / or” used in the present specification and the appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0043] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 , Figure 1 A schematic diagram of an oil separator provided in an embodiment of the utility model; Figure 2 A schematic diagram of the first part of the oil separator provided by an embodiment of the utility model;

[0044] Figure 3 A schematic diagram of the second part of the oil separator provided by the embodiment of the utility model; Figure 4 A schematic diagram of the fluid flow direction of the oil separator provided in an embodiment of the utility model; Figure 5 Schematic diagram of an air conditioner provided by an embodiment of the utility model. Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the utility model proposes an oil separator 100, the oil separator 100 includes a return oil pipe 110, a convection pipe 130 and a control valve 140 connected to each other; wherein the outer wall of the return oil pipe 110 is surrounded by an annular pipe 120 connected to the convection pipe 130, the inner cavity of the annular pipe 120 forms a vortex chamber, and the intake pipe 160 is arranged on the outer wall of the annular pipe 120 and is connected to the vortex chamber; the control valve 140 includes a control valve housing 141 and a valve body 142 arranged on the outer wall of the annular pipe 120. The valve body 142 is inside the control valve housing 141; a discharge port 150 is provided at one end of the control valve housing 141 away from the convection tube 130; the other end of the control valve housing 141 is communicated with the inner cavity of the convection tube 130; the valve body 142 is communicated with the discharge port 150; the return oil pipe 110 passes through the vortex chamber and is communicated with the convection tube 130, and a plurality of valve body through holes are provided at a position opposite to the return inlet of the valve body 142 and the return oil pipe 110.

[0045] In this embodiment, the oil separator 100 includes a return oil pipe 110, a convection pipe 130 and a control valve 140 connected to each other; wherein, the outer wall of the return oil pipe 110 is surrounded by an annular pipe 120 connected to the convection pipe 130, the inner cavity of the annular pipe 120 forms a vortex chamber, and the air intake pipe 160 is arranged on the outer wall of the annular pipe 120 and is connected to the vortex chamber; the control valve 140 includes a control valve housing 141 and a valve body 142 arranged in the control valve housing 141, and a plurality of valve body through holes are arranged at a position of the valve body 142 opposite to the return inlet of the return oil pipe 110, and the valve body 142 is connected with the discharge port 150 through the through hole of the valve body; the air inlet pipe 160 is arranged on the outer wall of the annular tube 120 and is connected with the vortex chamber; when the compressor 200 is in working state, the heat generated by the compressor 200 will vaporize part of the refrigerant oil, and the vaporized refrigerant oil mixes with the high-temperature and high-pressure refrigerant to form a mixture, which enters the annular tube 120 from the air inlet pipe 160, and after the mixture forms a rotating vortex in the annular tube 120, it enters the convection tube 130, and then under the adjustment of the valve body 142, the separation of the refrigerant oil and the refrigerant in the gas state is realized in the convection tube 130.

[0046] Specifically, the mass of the refrigerant per unit volume is m1, the mass of the refrigeration oil per unit volume is m2, the mass of the mixture A per unit volume is m, at temperature T, the specific gravity of the refrigerant is C1, the specific gravity of the refrigeration oil is C2, and the incident velocity of the mixture A per unit volume in the vortex chamber is V, and the exhaust pressure is P; from the physical properties of the refrigerant, it can be known that within the operating exhaust temperature T∈{Tmin, Tmax} and pressure P1∈{Pmin, Pmax} range of the air conditioner, C1>C2, and from m1=m×C1, m 2=m×C2, it can be deduced that m1>m2; according to the energy conservation equation F=PV and the particle motion radius trajectory equation R=mV2 / F, it can be deduced that the motion trajectory radius R=mV / P. When the incident velocity V and the exhaust pressure P are constant, since m1>m2, it can be obtained that the motion trajectory radius R1 of the refrigerant is greater than the motion trajectory radius R2 of the refrigeration oil; that is, after the mixture forms the rotating first vortex and the second vortex in the annular tube 120, it enters the convection tube 130, and then in the valve main Under the adjustment of the valve body 142, the separation of the refrigerant oil and the refrigerant in the gas state is realized in the convection tube 130; wherein, the first vortex is the refrigerant, the second vortex is the refrigerant oil, and the motion trajectory radius R1 of the first vortex is greater than the motion trajectory radius R2 of the second vortex; in the embodiment of the utility model, the valve body 142 can be a truncated cone structure or a conical structure, and specifically, the cross-sectional radius of the valve body 142 decreases successively toward one end of the return oil pipe 110; wherein, a plurality of valve body through holes are arranged at a position opposite to the return inlet of the return oil pipe, and the valve body 142 is connected to the discharge port 150 through the valve body through holes; since the motion trajectory radius R1 of the first vortex is greater than the motion trajectory radius R2 of the second vortex, the first vortex can be discharged from the discharge port 150 through the valve body through holes, while the second vortex is blocked by the valve body 142 and is therefore discharged from the return oil pipe 110, thereby realizing the separation of the refrigerant oil and the refrigerant in the gas state.

[0047] The utility model provides a vortex chamber so that the mixture entering the vortex chamber forms a rotating vortex in the vortex chamber, and then under the adjustment of the control valve, the separation of the refrigeration oil and the refrigerant in the gas state is realized, the oil discharge amount of the compressor is reduced, the service life of the compressor is increased, and the refrigeration oil condensation and adhesion on the inner wall of the pipeline are effectively prevented, thereby improving the heat exchange effect of the air conditioner pipeline.

[0048] In one embodiment, if Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the inner cavity of the convection tube 130 forms a convection tube through hole; the upper end surface of the annular tube 120 is provided with a vortex hole, and the annular tube 120 is connected with the convection tube through hole through the vortex hole.

[0049] In this embodiment, the inner cavity of the convection tube 130 forms a convection tube through hole; the upper end surface of the annular tube 120 is provided with a vortex hole, and the vortex hole can be a ring structure, and the annular tube 120 is connected with the convection tube through hole through the vortex hole; when the compressor 200 is in a working state, the heat generated by the compressor 200 will vaporize part of the refrigerant oil, and the vaporized refrigerant oil is mixed with the high-temperature and high-pressure refrigerant to form a mixture, which enters the vortex chamber from the intake pipe 160, and the mixture forms a rotating vortex in the vortex chamber and then enters the convection tube through hole through the vortex hole, and then under the adjustment of the valve body 142, the separation of the refrigerant oil and the refrigerant in the gas state is realized in the convection tube through hole; Specifically, the valve body 142 can be a truncated cone structure or a conical structure, and the cross-sectional radius of the valve body 142 decreases gradually toward one end of the return oil pipe 110; wherein, a plurality of valve body through holes are provided at a position of the valve body opposite to the reflux inlet of the return oil pipe 110, and the valve body 142 is connected with the discharge port 150 through the valve body through holes; since the movement trajectory radius R1 of the first vortex is greater than the movement trajectory radius R2 of the second vortex, the first vortex can be discharged from the discharge port 150 through the valve body through holes, while the second vortex is blocked by the valve body 142 and is therefore discharged from the return oil pipe 110, thereby realizing the separation of the refrigerant oil and the refrigerant in a gaseous state.

[0050] In one embodiment, if Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the valve body 142 includes a first valve body 1421 and a second valve body 1422 connected to the first valve body 1421, and the second valve body 1422 is arranged on a side close to the discharge port 150; a plurality of valve body through holes are arranged on the circumference of the second valve body 1422, and the plurality of valve body through holes are evenly arranged along the circumference of the second valve body 1422, and the valve body through holes are all connected to the discharge port 150.

[0051] In this embodiment, the valve body 142 includes a first valve body 1421 and a second valve body 1422 connected to the first valve body 1421. The cross-sectional radius of the first valve body 1421 is always smaller than the cross-sectional radius of the second valve body 1422. The second valve body 1422 is arranged on a side close to the discharge port 150. The first valve body 1421 is used to block the second vortex to achieve separation of the refrigerant oil and the refrigerant in a gas state. A plurality of valve body through holes are arranged on the circumference of the second valve body 1422. The plurality of valve body through holes are evenly arranged along the circumference of the second valve body 1422. The through holes of the body are all connected with the discharge port 150; when the compressor 200 is in working state, the heat generated by the compressor 200 will vaporize part of the refrigerant oil, and the vaporized refrigerant oil mixes with the high-temperature and high-pressure refrigerant to form a mixture, which enters the vortex chamber from the inlet pipe 160. After the mixture forms a rotating vortex in the vortex chamber, it enters the convection tube through hole through the vortex hole. Since the movement trajectory radius R1 of the first vortex is greater than the movement trajectory radius R2 of the second vortex, the first vortex can be discharged from the discharge port 150 through the valve body through hole, and the second vortex is blocked by the first valve body 1421 and discharged from the return oil pipe 110.

[0052] The oil separator 100 provided by the utility model can separate the refrigeration oil and the refrigerant in the gas state without using a condensing device such as a filter or an oil collection device, thereby improving the oil-gas separation efficiency and reducing the space occupied by the oil separator in the air-conditioning system.

[0053] In one embodiment, if Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the first valve body 1421 is a conical structure, and the second valve body 1422 is a cylindrical structure. The cross-sectional radius of the first valve body 1421 decreases gradually toward one end of the oil return pipe 110; the cross-sectional radius of the second valve body 1422 is greater than the bottom radius of the second valve body 1422.

[0054] In this embodiment, the first valve body 1421 is a conical structure, and the second valve body 1422 is a cylindrical structure. The cross-sectional radius of the first valve body 1421 decreases toward one end of the oil return pipe 110. The cross-sectional radius of the second valve body 1422 is greater than the bottom radius of the second valve body 1422, so as to separate the first vortex and the second vortex. When the compressor 200 is in operation, the heat generated by the compressor 200 will vaporize part of the refrigerant oil, and the vaporized refrigerant oil will mix with the high-temperature and high-pressure refrigerant to form a mixture, which will enter the vortex chamber from the intake pipe 160. After the mixture forms a rotating vortex in the vortex chamber, it will enter the convection pipe through hole through the vortex hole. Since the motion trajectory radius R1 of the first vortex is greater than the motion trajectory radius R2 of the second vortex, the first vortex can be discharged from the discharge port 150 through the valve body through hole, and the second vortex is blocked by the first valve body 1421 and discharged from the oil return pipe 110, so as to achieve the separation of the refrigerant oil and the refrigerant in the gas state.

[0055] Furthermore, the cross-sectional radius of the oil return pipe 110 is smaller than the bottom radius of the second valve body 1422 .

[0056] In one embodiment, if Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the oil return pipe 110 is provided with an oil return pipe through hole penetrating the oil return pipe 110 ; the first valve body 1421 is located directly above the oil return pipe through hole.

[0057] In this embodiment, a return oil pipe through hole is provided in the return oil pipe 110 and passes through the return oil pipe 110; the first valve body 1421 is located directly above the return oil pipe through hole; further, the first valve body 1421 is a conical structure, and the cone tip of the first valve body 1421 is located directly above the return oil pipe through hole, and the second vortex is blocked by the first valve body 1421 and then discharged from the return oil pipe 110.

[0058] In one embodiment, if Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the outer wall of the first valve body 1421 and the inner wall of the control valve housing 141 are combined to form a first control valve cavity; the outer wall of the second valve body 1422 and the inner wall of the control valve housing 141 are combined to form a second control valve cavity; the first control valve cavity is connected to the second control valve cavity.

[0059] In this embodiment, when the compressor 200 is in working state, the heat generated by the compressor 200 will cause part of the refrigerant oil to vaporize, and the vaporized refrigerant oil mixes with the high-temperature and high-pressure refrigerant to form a mixture, which enters the vortex chamber from the intake pipe 160. After the mixture forms a rotating vortex in the vortex chamber, it enters the convection tube through the vortex hole. Since the movement trajectory radius R1 of the first vortex is greater than the movement trajectory radius R2 of the second vortex, the first vortex flows through the second control valve cavity and the first control valve cavity in turn, and is discharged from the discharge port 150 through the valve body through the hole. The second vortex is blocked by the first valve body 1421 and the second valve body 1422 after entering the second control valve cavity, and is discharged from the return oil pipe 110, thereby realizing the separation of the refrigerant oil and the refrigerant in the gas state.

[0060] In one embodiment, if Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a connector 131 is disposed at one end of the convection tube 130 close to the control valve 140 , and the convection tube 130 is fixedly connected to the control valve 140 via the connector 131 .

[0061] In this embodiment, a connecting piece 131 is provided at one end of the convection tube 130 close to the control valve 140. The connecting piece 131 is sleeved on the outer wall of the control valve 140. The convection tube 130 is fixedly connected to the control valve 140 through the connecting piece 131 to enhance the sealing performance of the oil separator 100.

[0062] The utility model embodiment provides an air conditioner 10, such as Figure 5 and Figure 6 As shown, the air conditioner 10 includes a compressor 200 , a condenser 300 and the oil separator 100 .

[0063] In this embodiment, the compressor 200 can inhale low-temperature and low-pressure gas and compress it into high-temperature and high-pressure gas. When the compressor 200 is in working state, the heat generated by the compressor 200 will vaporize part of the refrigeration oil, and the vaporized refrigeration oil is mixed with the high-temperature and high-pressure refrigerant to form a mixture, and the mixture enters the oil separator 100 for separation, wherein the refrigeration oil flows back into the compressor 200 through the oil return pipe 110, and the refrigerant enters the condenser 300 through the discharge port 150. The utility model realizes the separation of refrigeration oil and refrigerant in gas state by setting the oil separator 100, reduces the oil discharge amount of the compressor 200, and increases the service life of the compressor 200. It can also effectively prevent the condensation and adhesion of refrigeration oil on the inner wall of the pipeline, and improve the heat exchange effect of the air conditioner pipeline.

[0064] In one embodiment, if Figure 4 , Figure 5 and Figure 6 As shown, the compressor 200 includes a compressor housing 210 and a compressor motor 220 arranged in the compressor housing 210; the inner side walls of the compressor housing 210 are combined to form a compressor cavity; a compressor discharge port 211 is provided at the upper end of the compressor housing 210, and the compressor cavity is connected to the compressor discharge port 211; the end of the intake pipe 160 away from the annular pipe 120 is connected to the compressor discharge port 211; the end of the return oil pipe 110 away from the annular pipe 120 is connected to the compressor cavity; the end of the discharge port 150 away from the control valve 140 is connected to the condenser 300.

[0065] In this embodiment, the oil separator 100 is arranged between the compressor 200 and the condenser. When the compressor 200 is in operation, the heat generated by the compressor motor 220 will vaporize part of the refrigerant oil. The vaporized refrigerant oil mixes with the high-temperature and high-pressure refrigerant to form a mixture. The mixture enters the oil separator 100 through the compressor discharge port 211 for separation, wherein the refrigerant oil flows back into the compressor cavity through the return oil pipe 110, and the refrigerant enters the condenser 300 through the discharge port 150.

[0066] In one embodiment, if Figure 4 , Figure 5 and Figure 6 As shown, the oil separator 100 is arranged in the compressor housing 210; the oil separator 100 is arranged at the lower end of the compressor discharge port 211, the compressor discharge port 211 is sleeved on the outer side wall of the discharge port 150, and the compressor discharge port 211 is connected to the discharge port 150.

[0067] In this embodiment, the oil separator 100 is arranged in the compressor housing 210. When the compressor 200 is in working state, the heat generated by the compressor motor 220 will vaporize part of the refrigerant oil, and the vaporized refrigerant oil mixes with the high-temperature and high-pressure refrigerant to form a mixture. The mixture directly enters the oil separator 100 through the air inlet pipe 160 for separation, wherein the refrigerant oil flows back into the compressor cavity through the return oil pipe 110, and the refrigerant enters the condenser 300 through the discharge port 150 and the compressor discharge port 211 in turn.

[0068] The utility model discloses an oil separator and an air conditioner, the oil separator comprising a return oil pipe, a convection pipe and a control valve connected to each other; wherein, an annular pipe connected to the convection pipe is arranged around the outer wall of the return oil pipe, the inner cavity of the annular pipe forms a vortex chamber, and an air intake pipe is arranged on the outer wall of the annular pipe and connected to the vortex chamber; the control valve comprises a control valve housing and a valve body arranged in the control valve housing; a discharge port is arranged at one end of the control valve housing away from the convection pipe; the other end of the control valve housing is connected to the inner cavity of the convection pipe; the valve body is connected to the discharge port; the return oil pipe passes through the vortex chamber and is connected to the convection pipe, and a plurality of valve body through holes are arranged at a position opposite to the return inlet of the return oil pipe. The utility model provides a vortex chamber so that the mixture entering the vortex chamber forms a rotating vortex in the vortex chamber, and then under the adjustment of the control valve, the separation of the refrigeration oil and the refrigerant in the gas state is realized, the oil discharge amount of the compressor is reduced, the service life of the compressor is increased, and the refrigeration oil condensation and adhesion on the inner wall of the pipeline are effectively prevented, thereby improving the heat exchange effect of the air conditioner pipeline.

[0069] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the utility model, and these modifications or replacements should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. An oil separator, characterized in that: The oil separator comprises an oil return pipe, a convection pipe and a control valve connected to each other; wherein an annular pipe connected to the convection pipe is arranged around the outer wall of the oil return pipe, the inner cavity of the annular pipe forms a vortex chamber, and the air intake pipe is arranged on the outer wall of the annular pipe and connected to the vortex chamber; The control valve comprises a control valve housing and a valve body arranged in the control valve housing; an end of the control valve housing away from the convection tube is provided with a discharge port; the other end of the control valve housing is communicated with the inner cavity of the convection tube; the valve body is communicated with the discharge port; The oil return pipe passes through the vortex chamber and is in communication with the convection pipe. A plurality of valve body through holes are provided at a position of the valve body opposite to a return inlet of the oil return pipe.

2. The oil separator according to claim 1, characterized in that: The inner cavity of the convection tube forms a convection tube through hole; The upper end surface of the annular tube is provided with a vortex hole, and the annular tube is connected with the convection tube through hole through the vortex hole.

3. The oil separator according to claim 1, characterized in that: The valve body comprises a first valve body and a second valve body connected to the first valve body, wherein the second valve body is arranged on a side close to the discharge port; A plurality of valve body through holes are arranged on the circumference of the second valve body. The plurality of valve body through holes are evenly arranged along the circumference of the second valve body. The valve body through holes are all connected to the discharge port.

4. The oil separator according to claim 3, characterized in that: The first valve body is a conical structure, the second valve body is a cylindrical structure, and the cross-sectional radius of the first valve body decreases gradually toward one end of the oil return pipe; A cross-sectional radius of the second valve body is greater than a bottom radius of the second valve body.

5. The oil separator according to claim 4, characterized in that: The oil return pipe is provided with an oil return pipe through hole penetrating the oil return pipe; The first valve body is located directly above the oil return pipe through hole.

6. The oil separator according to claim 3, characterized in that: The outer side wall of the first valve body and the inner side wall of the control valve housing are combined to form a first control valve cavity; The outer side wall of the second valve body and the inner side wall of the control valve housing are combined to form a second control valve cavity; The first control valve cavity is communicated with the second control valve cavity.

7. The oil separator according to claim 1, characterized in that: A connecting piece is provided at one end of the convection tube close to the control valve, and the convection tube is fixedly connected to the control valve through the connecting piece.

8. An air conditioner, characterized in that: The air conditioner comprises a compressor, a condenser and an oil separator as claimed in any one of claims 1 to 7.

9. The air conditioner according to claim 8, characterized in that: The compressor comprises a compressor housing and a compressor motor disposed in the compressor housing; The inner side walls of the compressor housing are combined to form a compressor cavity; The upper end of the compressor housing is provided with a compressor discharge port, and the compressor cavity is connected to the compressor discharge port; One end of the air inlet pipe away from the annular pipe is connected to the compressor discharge port; One end of the oil return pipe away from the annular pipe is connected to the compressor cavity; One end of the discharge port away from the control valve is communicated with the condenser.

10. The air conditioner according to claim 9, characterized in that: The oil separator is arranged in the compressor housing; The oil separator is arranged at the lower end of the compressor discharge port, the compressor discharge port is sleeved on the outer side wall of the discharge port, and the compressor discharge port is communicated with the discharge port.

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