Gas-liquid separator and compressor and air conditioner with same

Abstract

The invention provides a gas-liquid separator, a compressor with the gas-liquid separator and an air conditioner with the gas-liquid separator. The gas-liquid separator comprises a shell, a flow dividing device and a communicating pipe. The shell is provided with a cavity flow dividing device, and the flow dividing device is arranged in the cavity and located on the lower side of the inlet. The flow dividing device is provided with a center block and a plurality of blades evenly distributed on the peripheral side of the center block. And part or all of the upper surface of each blade is a flow guide surface of which the height is gradually reduced in the circumferential direction of the central block. A groove with a downward opening is formed in the bottom face of the center block. The upper end of the communicating pipe is inserted into the groove, and the upper end of the communicating pipe and the groove wall of the groove are arranged in a spaced mode. According to the gas-liquid separator, the gas-liquid separation efficiency and effect are improved, the amount of liquid refrigerants flowing out of the outlet is reduced, the situation of liquid impact caused by the fact that too much liquid refrigerants are carried in gaseous refrigerants sucked by a compressor is reduced, the working stability of the compressor is guaranteed, and the refrigeration effect of the air conditioner is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning, in particular to a gas-liquid separator and a compressor and an air conditioner having the same. Background Art

[0002] During the refrigeration process, liquid refrigerant that has not been completely evaporated may appear in the refrigeration system. When the liquid refrigerant enters the compressor, liquid hammer is likely to occur. As an important component of the compressor, the gas-liquid separator is mainly used to prevent the occurrence of liquid hammer. Some existing gas-liquid separators are equipped with partitions and connecting pipes inside the shell. The gap between the partition and the shell passes the liquid refrigerant, and the channel set apart from the gap on the partition passes the gaseous refrigerant. The liquid refrigerant flows downward to the bottom of the partition for storage, and the gaseous refrigerant flows upward through the channel into the compressor to achieve gas-liquid separation of the refrigerant.

[0003] However, the above-mentioned existing gas-liquid separator only relies on the difference in gravity between the liquid refrigerant and the gaseous refrigerant to achieve gas-liquid separation. The gas-liquid separation effect is poor, and it is still easy for the gaseous refrigerant sucked into the compressor to carry too much liquid refrigerant, resulting in liquid hammer, which reduces the working stability of the compressor and thus reduces the cooling effect of the air conditioner. Summary of the Invention

[0004] In view of the above problems, the present invention is proposed to provide a gas-liquid separator and a compressor and air conditioner having the same that overcome the above problems or at least partially solve the above problems. It can solve the problem of poor gas-liquid separation effect of the gas-liquid separator itself, reduce the occurrence of liquid hammer caused by excessive liquid refrigerant in the gaseous refrigerant sucked into the compressor, ensure the working stability of the compressor, and thus improve the cooling effect of the air conditioner.

[0005] Specifically, the present invention provides a gas-liquid separator, comprising:

[0006] A housing, wherein the housing is provided with a cavity, and the cavity is connected with an inlet and an outlet;

[0007] A flow diverter is provided in the cavity and below the inlet; the flow diverter comprises a central block and a plurality of blades uniformly distributed around the central block; every two adjacent blades are spaced apart to form a diverter channel; a portion or all of an upper surface of each blade is a guide surface whose height gradually decreases along a circumferential direction of the central block, the guide surface being used to define the diverter channel; a groove with a downward opening is provided on the bottom surface of the central block;

[0008] A connecting pipe is vertically arranged and is arranged on the lower side of the diversion device; the upper end of the connecting pipe is inserted into the groove, and the upper end of the connecting pipe is spaced apart from the groove wall of the groove; the lower end of the connecting pipe is connected to the outlet or is connected to the outlet through a pipeline.

[0009] Optionally, there are multiple cavities, which are arranged in sequence along the up and down directions; in two adjacent cavities, the outlet of the upper cavity is the inlet of the lower cavity, and the lower end of the upper connecting pipe is connected to the corresponding outlet; the inlet of the uppermost cavity is the air inlet of the gas-liquid separator, and the outlet of the lowermost cavity is the exhaust port of the gas-liquid separator.

[0010] Optionally, the gas-liquid separator further comprises:

[0011] At least one partition is disposed in the shell and configured to divide the space in the shell into a plurality of cavities; the inlet, the outlet, the connecting pipe and the shell are coaxially disposed;

[0012] An annular groove is provided on the upper surface of each partition, and at least one communicating hole is provided on the bottom wall of the annular groove;

[0013] The annular groove is arranged at the edge of the corresponding partition.

[0014] Optionally, the surface roughness of the guide surface is 2.5 μm to 20 μm.

[0015] Optionally, each of the blades is a symmetrical structure symmetrically arranged about a vertical plane, and there are two guide surfaces;

[0016] The axis of the housing is located on the vertical plane;

[0017] The two guide surfaces arranged opposite to each other in two adjacent blades define the corresponding diversion channel.

[0018] Optionally, along the radially outward direction of the shell, the distance between the lower edges of the two guide surfaces defining each of the diversion channels gradually increases.

[0019] Optionally, the upper surface of each blade is the guide surface, and there is only one guide surface on each blade.

[0020] Optionally, the groove walls of the grooves are on the same hemisphere;

[0021] The ratio between the diameter of the upper end opening of the communicating pipe and the diameter of the opening of the groove is 0.6 to 0.9;

[0022] The ratio of the distance between the plane where the upper end opening of the communicating tube is located and the plane where the opening of the groove is located to the diameter of the opening of the groove is 0.07 to 0.09;

[0023] A ratio between a diameter of the opening of the groove and a diameter of the groove is 0.9 to 1.1.

[0024] The present invention also provides a compressor comprising the above-mentioned gas-liquid separator.

[0025] The present invention also provides an air conditioner comprising the above-mentioned compressor.

[0026] In the gas-liquid separator of the present invention, when the refrigerant falls onto the blades, since the liquid refrigerant has a higher dynamic viscosity than the gaseous refrigerant, the liquid refrigerant will adhere to the surface of the blades and flow slowly, so that the diversion device can effectively separate the liquid refrigerant from the gaseous refrigerant.

[0027] The upper end opening of the connecting tube is in the groove. When a small amount of liquid refrigerant splashes upward or follows the gaseous refrigerant to flow upward and comes into contact with the groove, the liquid refrigerant is adhered to and guided by the groove surface, so that the liquid refrigerant flows downward along the curved surface of the groove to the diverter device or the lower side of the diverter device, so as to realize gas-liquid separation again, further improving the gas-liquid separation effect.

[0028] The gas-liquid separator solves the problem of poor gas-liquid separation effect of the gas-liquid separator itself, improves the efficiency and effect of gas-liquid separation, reduces the amount of liquid refrigerant flowing out of the outlet, and reduces the occurrence of liquid hammer caused by excessive liquid refrigerant in the gaseous refrigerant inhaled by the compressor, thereby ensuring the working stability of the compressor and improving the cooling effect of the air conditioner.

[0029] Based on the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will become more aware of the above and other objects, advantages and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings:

[0031] Figure 1 is a schematic cross-sectional structural diagram of a gas-liquid separator according to one embodiment of the present invention;

[0032] Figure 2 is a schematic exploded view of a gas-liquid separator according to one embodiment of the present invention;

[0033] Figure 3is a schematic cross-sectional view of a gas-liquid separator according to one embodiment of the present invention;

[0034] Figure 4 is a schematic structural diagram of a flow dividing device in a gas-liquid separator according to one embodiment of the present invention;

[0035] Figure 5 1 is a schematic structural diagram of a partition in a gas-liquid separator according to an embodiment of the present invention.

[0036] List of reference numerals:

[0037] 100, housing; 110, cavity; 111, air inlet; 112, exhaust port;

[0038] 200, diverter device; 210, center block; 211, groove; 220, blade; 221, guide surface; 230, diverter channel;

[0039] 300, connecting pipe;

[0040] 400, partition; 410, annular groove; 411, connecting hole. DETAILED DESCRIPTION

[0041] Refer to the following Figures 1 to 5 To describe the gas-liquid separator of the embodiment of the present invention and the compressor and air conditioner having the same. In the description of this embodiment, it should be understood that the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features, that is, include one or more of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. When a feature "includes or contains" one or some of the features it covers, unless otherwise specifically described, this indicates that other features are not excluded and may further include other features.

[0042] Unless otherwise expressly defined or limited, terms such as "disposed," "installed," "connected," "connected," "fixed," and "coupled" should be broadly interpreted. For example, they may refer to fixed or detachable connections, or integration; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two elements or interaction between two elements, unless otherwise expressly defined. A person of ordinary skill in the art should be able to understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0043] In addition, in the description of this embodiment, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact via another feature between them. That is, in the description of this embodiment, the first feature being "above," "above," and "above" the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature being "below," "below," or "below" the second feature may mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0044] In the description of the present embodiment, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "example," "specific example," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the exemplary expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any appropriate manner in any one or more embodiments or examples.

[0045] Figure 1 : is a schematic cross-sectional structural diagram of a gas-liquid separator according to one embodiment of the present invention, as shown in FIG. Figure 1 As shown, and reference Figures 2 to 5 The embodiment of the present invention provides a gas-liquid separator, which includes a housing 100 , a flow dividing device 200 , and a connecting pipe 300 .

[0046] The housing 100 is provided with a cavity 110 , and the cavity 110 is connected with an inlet and an outlet.

[0047] The flow diverter 200 is disposed in the cavity 110 and is located below the inlet. The flow diverter 200 comprises a central block 210 and a plurality of blades 220 uniformly distributed around the central block 210. Each pair of adjacent blades 220 is spaced apart to form a diverter channel 230. Part or all of the upper surface of each blade 220 is formed as a guide surface 221 that gradually decreases in height along a circumferential direction of the central block 210. The guide surface 221 is used to define the diverter channel 230. A groove 211 with a downwardly facing opening is provided on the bottom surface of the central block 210.

[0048] The connecting pipe 300 is vertically arranged below the diverter 200. The upper end of the connecting pipe 300 is inserted into the groove 211, and the upper end of the connecting pipe 300 is spaced apart from the groove wall of the groove 211. The lower end of the connecting pipe 300 is connected to the outlet or communicates with the outlet through a pipeline.

[0049] In this embodiment, the refrigerant enters the cavity 110 through the inlet. Due to the different densities of the gaseous refrigerant and the liquid refrigerant, they are affected by gravity and resistance when falling, resulting in different falling speeds, causing some of the gaseous refrigerant and liquid refrigerant to be separated due to the flow rate. The refrigerant is then separated again by the diverter 200. Specifically, the refrigerant flows downward along the surface of the blade 220 and the inner wall of the shell 100. As the amount of refrigerant entering the cavity 110 increases, and because the density of the liquid refrigerant is higher than that of the gaseous refrigerant, the liquid refrigerant accumulates at the lower end of the cavity 110. The gaseous refrigerant in the cavity 110 enters the connecting pipe from the upper end of the connecting pipe 300 on the lower side of the groove 211 due to the action of pressure, and flows out from the lower end of the connecting pipe 300.

[0050] When the refrigerant falls onto the blade 220 , since the liquid refrigerant has a higher dynamic viscosity than the gaseous refrigerant, the liquid refrigerant will adhere to the surface of the blade 220 and flow slowly, so that the diverter device 200 can effectively separate the liquid refrigerant from the gaseous refrigerant.

[0051] The upper end opening of the connecting tube 300 is located in the groove 211. When a small amount of liquid refrigerant splashes upward or follows the gaseous refrigerant to flow upward and contacts the groove 211, the surface of the groove 211 adheres to and guides the liquid refrigerant, causing the liquid refrigerant to flow downward along the curved surface of the groove 211 to the diverter device 200 or the lower side of the diverter device 200, so as to realize gas-liquid separation again, further improving the gas-liquid separation effect.

[0052] When the lower end of the connecting pipe 300 is connected to the outlet, the gaseous refrigerant can be directly discharged from the cavity 110. When the lower end of the connecting pipe 300 is connected to the outlet through a pipeline, the gaseous refrigerant can enter the next gas-liquid separation or be discharged from the cavity 110 through the pipeline.

[0053] The gas-liquid separator solves the problem of poor gas-liquid separation effect of the gas-liquid separator itself, improves the efficiency and effect of gas-liquid separation, reduces the amount of liquid refrigerant flowing out of the outlet, and reduces the occurrence of liquid hammer caused by excessive liquid refrigerant in the gaseous refrigerant inhaled by the compressor, thereby ensuring the working stability of the compressor and improving the cooling effect of the air conditioner.

[0054] The smaller amount of liquid entering the gaseous refrigerant can effectively reduce the occurrence of liquid hammer, thereby reducing the occurrence of excessive compressor power and component wear caused by liquid hammer. It also avoids abnormal noise caused by the separation of rollers and vanes in the compressor, improves the overall performance and reliability of the refrigeration system, and ensures the cooling capacity of the air conditioner.

[0055] In some embodiments of the gas-liquid separator of the present invention, the number of blades 220 is 4 to 10.

[0056] In some embodiments of the gas-liquid separator of the present invention, the flow splitter 200 includes a fixed structure, blades 220, and a center block 210. The fixed structure is fixedly connected to the outer periphery of the blades 220 and is fixedly connected to the interior of the housing 100. The flow splitter 200 is a stamped part with an overall thickness of between 1.5 mm and 3 mm.

[0057] Furthermore, in some embodiments of the gas-liquid separator of the present invention, the fixed structure is a circular ring, the outer diameter D1 of which is the same as the inner diameter of the shell 100, and the outer circumferential surface of the fixed structure is provided with a protruding structure to cooperate with the shell 100 to achieve the installation and fixation of the diversion device 200 in the shell 100.

[0058] In some embodiments of the gas-liquid separator of the present invention, as Figure 3 As shown, there are multiple cavities 110, arranged sequentially along the vertical direction. In two adjacent cavities 110, the outlet of the upper cavity 110 serves as the inlet of the lower cavity 110, and the lower end of the upper connecting pipe 300 is connected to the corresponding outlet. The inlet of the uppermost cavity 110 serves as the air inlet 111 of the gas-liquid separator, and the outlet of the lowermost cavity 110 serves as the exhaust port 112 of the gas-liquid separator.

[0059] In this embodiment, between two adjacent cavities 110, the outlet of the upper cavity 110 is connected to the inlet of the lower cavity 110. After the upper cavity 110 undergoes gas-liquid separation, the gaseous refrigerant flows out from the outlet of the upper cavity 110 and flows downward to the other cavity 110 below. Since the gaseous refrigerant and the liquid refrigerant are affected by gravity and resistance when falling, their falling speeds are different, so the gas-liquid separation effect is enhanced by increasing the distance the refrigerant travels in the cavity 110.

[0060] In some embodiments of the gas-liquid separator of the present invention, a flow dividing device 200 is provided in each cavity 110 .

[0061] In this embodiment, after the refrigerant passes through the diverter device 200 in the upper cavity 110 and undergoes gas-liquid separation, it flows out of the upper cavity 110 and flows downward into another cavity 110, where it passes through the diverter device 200 again for gas-liquid separation. By sequentially performing gas-liquid separation in multiple cavities 110, the overall separation effect of the gas-liquid separator is significantly improved.

[0062] In some embodiments of the gas-liquid separator of the present invention, as Figure 1 and Figure 5 As shown, the gas-liquid separator further includes at least one partition 400 .

[0063] At least one partition 400 is disposed in the housing 100 and configured to divide the space in the housing 100 into a plurality of cavities 110. The inlet, outlet, and connecting pipe 300 are coaxially disposed with the housing 100.

[0064] An annular groove 410 is provided on the upper surface of each partition 400 , and at least one communicating hole 411 is provided on the bottom wall of the annular groove 410 .

[0065] The annular groove 410 is disposed at the edge of the corresponding partition 400 .

[0066] In this embodiment, the partition 400 has the function of blocking the normal flow of gas and liquid, thereby dividing the space within the shell 100 into multiple cavities 110. The refrigerant in the cavity 110 flows downward along the surface of the blade 220 and the inner wall of the shell 100. As the amount of refrigerant entering the cavity 110 increases, and because the density of the liquid refrigerant is higher than that of the gaseous refrigerant, the liquid refrigerant accumulates at the lower end of the cavity 110. Due to the effect of pressure, the gaseous refrigerant in the cavity 110 enters the connecting pipe from the upper end of the connecting pipe 300 on the lower side of the groove 211, and flows from the lower end of the connecting pipe 300 to the cavity 110 on the lower side of the partition 400, or is directly discharged through the exhaust port 112. The liquid refrigerant drips along the curved surface of the groove 211 to the bottom of the cavity 110. The liquid refrigerant on the partition 400 converges in the annular groove 410 and flows to the lower side of the partition 400 through the connecting hole 411. Since the connecting hole 411 is arranged on the bottom wall of the annular groove 410, and the annular groove 410 is arranged at the edge of the corresponding partition 400, most of the liquid refrigerant flowing down from the connecting hole 411 flows downward along the inner wall of the shell 100, so as to reduce the situation where the liquid refrigerant drips from a high place and produces large liquid splashes.

[0067] The gaseous refrigerant in the cavity 110 below the partition 400 flows downward and passes through the diverter 200 again for gas-liquid separation, until the gaseous refrigerant flows out of the gas-liquid separator through the exhaust port 112. The liquid refrigerant that reaches the bottom of the partition 400 flows downward along the inner wall of the shell 100 and is recovered at the bottom of the inner side of the shell 100 of the gas-liquid separator.

[0068] The partitions 400 divide the interior of the housing 100 into multiple cavities 110 arranged vertically, each capable of independently completing the gas-liquid separation process. The refrigerant sequentially separates the gas and liquid in each of the cavities 110, significantly improving the overall separation efficiency of the gas-liquid separator.

[0069] The inlet, outlet, connecting pipe 300 and housing 100 are coaxially arranged to ensure smooth flow of the fluid.

[0070] In some embodiments of the gas-liquid separator of the present invention, multiple gas-liquid separation technologies are utilized between the diverter device 200 and the partition 400, so that the space between the diverter device 200 and the partition 400 functions as a silencer resonance chamber, thereby improving the pressure pulsation of the fluid inside the gas-liquid separator and reducing the airflow noise inside the gas-liquid separator.

[0071] In some embodiments of the gas-liquid separator of the present invention, a connecting structure is fixedly connected to the outer periphery of the partition 400, and the connecting structure is fixedly connected to the interior of the housing 100. The partition 400, the connecting pipe 300, and the connecting structure are stamped parts, and the overall thickness of the partition 400 is between 1.5 mm and 3 mm.

[0072] Furthermore, in some embodiments of the gas-liquid separator of the present invention, the connecting structure is a circular ring, the outer diameter of which is the same as the inner diameter of the shell 100, and the outer circumferential surface thereof is provided with a protruding structure to cooperate with the shell 100 to achieve the installation and fixation of the partition 400 in the shell 100.

[0073] In some embodiments of the gas-liquid separator of the present invention, 2 to 4 communication holes 411 are provided on the bottom wall of the annular groove 410 , and the plurality of communication holes 411 are evenly distributed along the circumference of the annular groove 410 .

[0074] In some embodiments of the gas-liquid separator of the present invention, the surface roughness of the guide surface 221 is 2.5 μm to 20 μm.

[0075] In this embodiment, the surface roughness of the guide surface 221 is controlled within the range of 2.5μm to 20μm. Compared with an excessively rough surface, it avoids excessive flow resistance to the liquid refrigerant, thereby preventing the liquid refrigerant from staying and accumulating on the blade 220. Compared with a smoother surface, it can improve the adhesion effect of the liquid refrigerant on the blade 220 to ensure the gas-liquid separation effect.

[0076] In some embodiments of the gas-liquid separator of the present invention, as Figure 4 As shown, each blade 220 is a symmetrical structure symmetrically arranged about a vertical plane, and has two guide surfaces 221 .

[0077] The axis of the housing 100 lies on a vertical plane.

[0078] The two guide surfaces 221 disposed opposite to each other in two adjacent blades 220 define a corresponding flow diversion channel 230 .

[0079] In this embodiment, the refrigerant enters the cavity 110 on the lower side of the diverter device 200 along the blades 220 or directly through the diverter channel 230 between the two blades 220. The symmetrical structure of the blades 220 improves the connection strength between the blades 220 and the cone, thereby ensuring the stability of the diverter device 200.

[0080] In some embodiments of the gas-liquid separator of the present invention, the cross section of a single blade 220 on the circumference of the concentric circle of the cone may be an inclined cross section forming a specific angle with the horizontal plane.

[0081] Alternatively, the cross section of a single blade 220 on the circumference of the concentric circle of the cone may also be a semicircular cross section.

[0082] Alternatively, the cross section of a single blade 220 on the circumference of the concentric circle of the cone may also be any curved cross section with an arc and a tail end facing downward.

[0083] In some embodiments of the gas-liquid separator of the present invention, as Figure 4 As shown, along the radially outward direction of the housing 100 , the distance between the lower edges of the two guide surfaces 221 for defining each diversion channel 230 gradually increases.

[0084] In this embodiment, the diverter channel 230 adopts a gradually expanding flow channel design, which not only provides sufficient space for the gaseous refrigerant to flow upward, ensuring smooth flow of the gaseous refrigerant, but also retains a sufficient effective area on the upper surface of the blade 220, increasing the contact time between the liquid refrigerant and the guide surface 221, thereby improving the gas-liquid separation effect when the liquid refrigerant flows on the guide surface 221.

[0085] Furthermore, the distance between the lower edges of the two guide surfaces 221 of each diverter channel 230 gradually increases. That is, the opening of the diverter channel 230 at the end away from the cone is smaller, while the opening of the blade 220 at the end away from the cone is larger. The blades 220 guide the liquid refrigerant toward the inner wall of the housing 100, reducing the risk of large splashes from dripping liquid refrigerant from a high altitude. This, in turn, reduces the risk of liquid refrigerant entering the connecting pipe 300, thereby improving the effectiveness of the gas-liquid separator.

[0086] In some embodiments of the gas-liquid separator of the present invention, the upper surface of each blade 220 is a guide surface 221 , and there is only one guide surface 221 on each blade 220 .

[0087] In this embodiment, the upper surface of each blade 220 is formed as a single guide surface 221. This integrated guide surface 221 design forms a continuous, complete guide surface on the upper surface of each blade 220, avoiding the flow obstruction that may occur in a structure with multiple guide surfaces 221, and ensuring that the liquid refrigerant flows stably according to the guidance of the blade 220.

[0088] In some embodiments of the gas-liquid separator of the present invention, as Figure 3As shown, the groove wall surfaces of the groove 211 are on the same hemisphere, so that a smooth transition curved surface structure is formed inside the groove 211, thereby playing a role in better guiding the liquid refrigerant.

[0089] The ratio between the diameter D1 of the upper end opening of the communication pipe 300 and the diameter D2 of the opening of the groove 211 is 0.6 to 0.9.

[0090] The ratio of the distance H between the plane where the upper opening of the connecting pipe 300 is located and the plane where the opening of the groove 211 is located to the diameter D2 of the opening of the groove 211 is 0.07 to 0.09.

[0091] The ratio between the diameter D2 of the opening of the groove 211 and the diameter D3 of the groove 211 is 0.9 to 1.1. The diameter D3 of the groove 211 is the diameter of the hemispherical surface where the groove wall of the groove 211 is located.

[0092] In this embodiment, the ratio between the diameter D1 of the upper opening of the connecting tube 300 and the diameter D2 of the opening of the groove 211 is between 0.6 and 0.9, the ratio between the distance H between the plane where the upper opening of the connecting tube 300 and the plane where the opening of the groove 211 is located and the diameter D2 of the opening of the groove 211 is between 0.07 and 0.09, and the ratio between the diameter D2 of the opening of the groove 211 and the diameter D3 of the groove 211 is between 0.9 and 1.1. This ensures that the opening diameter D1 of the connecting tube 300 is smaller than the opening diameter D2 of the groove 211, and that a certain gap exists between the top of the connecting tube 300 and the groove 211, thereby ensuring that the gaseous refrigerant can enter the connecting tube 300 through the gap between the top of the connecting tube 300 and the groove 211. Furthermore, within this size range, both the size of the connecting tube 300 itself and the gap between the top of the connecting tube 300 and the groove 211 satisfy the requirement for smooth flow of the gaseous refrigerant within the connecting tube 300.

[0093] Moreover, the ratio of the opening diameter of the groove 211 to the diameter of the groove 211 is between 0.9 and 1.1, so that the groove 211 approaches a hemispherical shape, so that the wall surface of the groove 211 can effectively guide the liquid refrigerant.

[0094] In some embodiments of the compressor of the present invention, the compressor includes the gas-liquid separator of any one of the above embodiments.

[0095] In this embodiment, the compressor effectively reduces the liquid refrigerant entering the compression chamber through the built-in high-efficiency gas-liquid separation device, which not only improves the operating reliability of the compressor, but also significantly extends the service life of key moving parts by reducing the risk of liquid hammer.

[0096] When the refrigerant falls onto the blades 220 inside the gas-liquid separator, since the liquid refrigerant has a higher dynamic viscosity than the gaseous refrigerant, the liquid refrigerant will adhere to the surface of the blades 220 and flow slowly, so that the diversion device 200 can effectively separate the liquid refrigerant from the gaseous refrigerant.

[0097] The upper end opening of the connecting tube 300 is located in the groove 211. When a small amount of liquid refrigerant splashes upward or follows the gaseous refrigerant to flow upward and contacts the groove 211, the surface of the groove 211 adheres to and guides the liquid refrigerant, causing the liquid refrigerant to flow downward along the curved surface of the groove 211 to the diverter device 200 or the lower side of the diverter device 200, so as to realize gas-liquid separation again, further improving the gas-liquid separation effect.

[0098] This compressor solves the problem of poor gas-liquid separation effect of the gas-liquid separator itself, improves the efficiency and effect of gas-liquid separation, reduces the amount of liquid refrigerant flowing out of the outlet, and reduces the occurrence of liquid hammer caused by excessive liquid refrigerant in the gaseous refrigerant inhaled by the compressor, thereby ensuring the working stability of the compressor and improving the cooling effect of the air conditioner.

[0099] In some embodiments of the air conditioner of the present invention, the air conditioner includes the compressor of any one of the above embodiments.

[0100] In this embodiment, the air conditioner improves the operating efficiency of the refrigerant circulation system through the multi-stage separation mechanism of the gas-liquid separator.

[0101] When the refrigerant falls onto the blades 220 inside the gas-liquid separator, since the liquid refrigerant has a higher dynamic viscosity than the gaseous refrigerant, the liquid refrigerant will adhere to the surface of the blades 220 and flow slowly, so that the diversion device 200 can effectively separate the liquid refrigerant from the gaseous refrigerant.

[0102] The upper end opening of the connecting tube 300 is located in the groove 211. When a small amount of liquid refrigerant splashes upward or follows the gaseous refrigerant to flow upward and contacts the groove 211, the surface of the groove 211 adheres to and guides the liquid refrigerant, causing the liquid refrigerant to flow downward along the curved surface of the groove 211 to the diverter device 200 or the lower side of the diverter device 200, so as to realize gas-liquid separation again, further improving the gas-liquid separation effect.

[0103] The air conditioner solves the problem of poor gas-liquid separation effect of the gas-liquid separator itself, improves the efficiency and effect of gas-liquid separation, reduces the amount of liquid refrigerant flowing out of the outlet, and reduces the occurrence of liquid hammer caused by excessive liquid refrigerant in the gaseous refrigerant inhaled by the compressor, thereby ensuring the working stability of the compressor and improving the cooling effect of the air conditioner.

[0104] At this point, those skilled in the art will recognize that, although a number of exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications consistent with the principles of the present invention may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and deemed to cover all such other variations or modifications.

Claims

1. A gas-liquid separator, characterized in that: include: A housing, wherein the housing is provided with a cavity, and the cavity is connected with an inlet and an outlet; A flow dividing device is provided in the cavity and is located below the inlet; the flow dividing device comprises a central block and a plurality of blades uniformly distributed around the central block; every two adjacent blades are spaced apart to form a flow dividing channel; Part or all of the upper surface of each blade is a guide surface with a height gradually decreasing along a circumferential direction of the central block, and the guide surface is used to define the diversion channel; a groove with an opening facing downward is provided on the bottom surface of the central block; A connecting pipe is vertically arranged and is arranged on the lower side of the diversion device; the upper end of the connecting pipe is inserted into the groove, and the upper end of the connecting pipe is spaced apart from the groove wall of the groove; the lower end of the connecting pipe is connected to the outlet or is connected to the outlet through a pipeline.

2. The gas-liquid separator according to claim 1, characterized in that There are multiple cavities, which are arranged in sequence along the up and down directions; in two adjacent cavities, the outlet of the upper cavity is the inlet of the lower cavity, and the lower end of the upper connecting pipe is connected to the corresponding outlet; the inlet of the uppermost cavity is the air inlet of the gas-liquid separator, and the outlet of the lowermost cavity is the exhaust port of the gas-liquid separator.

3. The gas-liquid separator according to claim 2, characterized in that Also includes: at least one partition disposed in the shell and configured to divide the space in the shell into a plurality of the cavities; The inlet, the outlet, the connecting pipe and the shell are coaxially arranged; An annular groove is provided on the upper surface of each partition, and at least one communicating hole is provided on the bottom wall of the annular groove; The annular groove is arranged at the edge of the corresponding partition.

4. The gas-liquid separator according to claim 1, characterized in that The surface roughness of the guide surface is 2.5 μm to 20 μm.

5. The gas-liquid separator according to claim 1, characterized in that Each of the blades is a symmetrical structure symmetrically arranged about a vertical plane, and there are two guide surfaces; The axis of the housing is located on the vertical plane; The two guide surfaces arranged opposite to each other in two adjacent blades define the corresponding diversion channel.

6. The gas-liquid separator according to claim 5, characterized in that Along the radial outward direction of the shell, the distance between the lower edges of the two guide surfaces for defining each of the diversion channels gradually increases.

7. The gas-liquid separator according to claim 1, characterized in that The upper surface of each blade is the guide surface, and there is only one guide surface on each blade.

8. The gas-liquid separator according to claim 1, characterized in that The groove walls of the grooves are located on the same hemisphere; The ratio between the diameter of the upper end opening of the communicating pipe and the diameter of the opening of the groove is 0.6 to 0.9; The ratio of the distance between the plane where the upper end opening of the communicating tube is located and the plane where the opening of the groove is located to the diameter of the opening of the groove is 0.07 to 0.09; A ratio between a diameter of the opening of the groove and a diameter of the groove is 0.9 to 1.

1.

9. A compressor, characterized in that: A gas-liquid separator comprising the gas-liquid separator according to any one of claims 1 to 8.

10. An air conditioner, characterized in that: Including the compressor according to claim 9.

Images