A liquid separation partition, a liquid storage device, a compressor assembly and an air conditioner

Abstract

The present invention provides a liquid separation partition, a liquid storage device, a compressor assembly and an air conditioner. The liquid separation partition includes: a flat plate and a protruding portion. The flat plate is a ring structure. The protruding portion is disposed at the center position of the flat plate and protrudes toward one axial side of the flat plate. The protruding surface of the protruding portion faces the oncoming flow direction of the fluid. A first drainage groove is extendedly provided on the protruding surface. A through hole penetrating in the axial direction is provided at the outer periphery of the flat plate. The first drainage groove can guide the fluid to the upper surface of the flat plate, and then discharge it through the through hole to the lower side of the liquid separation partition. According to the present invention, the effect of gas-liquid separation can be improved, thereby reducing the liquid-carrying amount entering the compressor suction pipe, ensuring that the pressure does not suddenly change during the compression process of the pump body, resulting in the sliding vane detaching from the roller and hitting the roller again, and avoiding or reducing noise generation.

Description

Technical Field

[0001] The present invention relates to the technical field of compressors, and in particular to a liquid separation partition, a liquid storage device, a compressor assembly and an air conditioner. Background Art

[0002] Under low-temperature conditions, compressors operating at low and medium frequencies are prone to excessive liquid inhalation. Air conditioning systems typically incorporate a liquid accumulator to separate the gas and liquid in the fluid before it enters the compressor pump body, storing the separated liquid to regulate the refrigerant's circulation flow at different operating frequencies. The design of the liquid separator in the accumulator plays a key role in achieving effective gas-liquid separation. Early designs had straight holes in the separator, relying solely on the raised components supporting the filter screen for preliminary fluid guidance. This resulted in poor gas-liquid separation, and most systems relied on increasing the diameter of the accumulator cylinder to reduce airflow velocity to enhance gas-liquid separation.

[0003] When the suction air carries too much liquid, the pump body will experience a sudden pressure change during the compression process, causing the vane to separate from the roller and hit the roller again, resulting in an abnormal "clicking sound" and a significant decrease in performance.

[0004] Since the rolling rotor type compressor in the prior art has technical problems such as high liquid content in the suction air, the present invention studies and designs a liquid separation partition, a liquid storage device, a compressor assembly and an air conditioner. Summary of the Invention

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the defect of high liquid content in the suction of the rolling rotor compressor in the prior art, thereby providing a liquid separation partition, a liquid storage device, a compressor assembly and an air conditioner.

[0006] In order to solve the above problems, the present invention provides a liquid separation plate, which includes:

[0007] A flat plate and a protrusion, the flat plate is an annular structure, the protrusion is arranged at the center position of the flat plate and protrudes toward one axial side of the flat plate, the protruding surface of the protrusion is opposite to the incoming flow direction of the fluid, a first drainage groove is extended on the protruding surface, and a flow hole is provided at the outer periphery of the flat plate that passes through in the axial direction. The first drainage groove can guide the fluid to the upper surface of the flat plate, and then discharge it to the bottom of the liquid separation partition through the flow hole.

[0008] In some embodiments, the top of the protrusion is opposite to the inlet pipe of the liquid reservoir, and the upper end of the first drainage groove extends to the top to obtain fluid; there are multiple first drainage grooves, and the multiple first drainage grooves are distributed at intervals or cross-distributed on the protrusion surface.

[0009] And / or, the protrusion is a spherical structure, formed as a convex hull.

[0010] In some embodiments, when a plurality of the first drainage grooves are spaced apart on the convex surface, the plurality of the first drainage grooves are spaced apart along the circumferential direction of the convex portion; when a plurality of the first drainage grooves are cross-distributed on the convex surface, in the planar projection of the flat plate, the plurality of the first drainage grooves form a plurality of diamond texture forms.

[0011] In some embodiments, when a plurality of the first drainage grooves are spaced apart along the circumferential direction of the convex portion, a third drainage groove is further provided between two adjacent ones of the first drainage grooves, and the upper end of the third drainage groove does not extend to the top of the convex portion.

[0012] In some embodiments, a ring-shaped liquid distribution groove is provided at the position where the convex portion is connected to the flat plate, one end of the first drainage groove is communicated with the liquid distribution groove so as to introduce fluid into the liquid distribution groove, and the fluid in the liquid distribution groove can flow to the flow-through hole and be discharged.

[0013] In some embodiments, a second drainage groove and a liquid collecting groove are provided on the flat plate, one end of the second drainage groove is communicated with the liquid distribution groove and the other end is communicated with the liquid collecting groove, the second drainage groove extends in the radial direction, the liquid collecting groove is an annular groove provided at the radial outer periphery of the flat plate, and the liquid collecting groove can be communicated with the flow-through hole.

[0014] In some embodiments, an arc-shaped baffle is further included on the radial outer side of the flat plate, the arc-shaped baffle is connected to the outer periphery of the flat plate through a connecting rib to form the liquid collecting groove between the arc-shaped baffle and the outer periphery of the flat plate, there are at least two arc-shaped baffles, and the flow-through hole is formed in the circumferential direction between two adjacent arc-shaped baffles.

[0015] In some embodiments, a flow guiding hole is formed through the axial two end faces of the flat plate, one side of the flow guiding hole faces downward and is formed as a slope in the form of a flanging, the flow guiding hole includes an inclined hole portion and a through hole portion, the inclined hole portion is blocked by the slope in the vertical direction, and the through hole portion penetrates in the vertical direction.

[0016] In some embodiments, the slope is an arc-shaped groove with an arc-shaped cross section, and the concave surface of the arc-shaped groove faces upward; and / or, the flow guiding hole and the slope form an air passing unit, there are a plurality of the air passing units, and the plurality of the air passing units are spaced apart along the circumferential direction of the flat plate.

[0017] In some embodiments, when the protrusion is a spherical structure, the arc radius of the protrusion is R9, within the plane projection surface of the flat plate, the distance between the center of the protrusion and the edge of the protrusion is R1, the angle between the line between the center of the sphere of the protrusion and the edge of the protrusion and the line between the center of the sphere of the protrusion and the top of the protrusion is θ2, and R9=R1 / sinθ2.

[0018] In some embodiments, the value range of R1 is [0.45L1, 0.5L1+5], and the value range of θ2 is [15°, 60°], where L1 is the maximum distance between two outlet tubes in the liquid reservoir within the plane projection of the flat plate.

[0019] In some embodiments, the cross section of the first drainage groove is an arc groove, the forming radius of the first drainage groove is R3, the height of the center of the inner arc surface of the first drainage groove and the upper plane of the flat plate in the vertical direction is h1, the angle between the first drainage groove and the plane of the flat plate in the longitudinal section is θ1, the arc radius of the first drainage groove is R8, the number of the guide holes is n, and the value range of R3 is [0.1mm, 0.5R 1 / n], the value range of h1 is [0,0.6R3], θ1=[190°-θ2, 205°-θ2], and the angle between the line between the center of the sphere of the protrusion and the edge of the protrusion and the line between the center of the sphere of the protrusion and the top of the protrusion is θ2.

[0020] In some embodiments, within the plane projection surface of the flat plate, the distance between the center of the protrusion and the edge of the protrusion is R1, the distance between the center of the protrusion and the center of the liquid separation groove is R2, and the liquid separation groove is an arc-shaped groove with an arc radius of R 10 The vertical height between the center of the inner arc surface of the liquid separation tank and the plane on the flat plate is h2, R 10 The value range is [0.1mm, 2mm], R2=R1+2R 10 , h2=[0,0.6R 10 ].

[0021] In some embodiments, the outer diameter of the arc baffle is R0, the width of the liquid collecting trough is R6, the outer diameter of the liquid collecting trough is R7, the depth of the liquid collecting trough is h3, and R7 = R0-2mm, R6 = [R7-1mm, R7-5mm], h3 = [2mm, 6mm].

[0022] In some embodiments, the flow holes include a first flow hole and a second flow hole that are circumferentially spaced apart. The central angle of the first flow hole is θ3, and the central angle of the second flow hole is θ4. The values of θ3 and θ4 are both in the range of [5°, 50°], and the sum of θ3 and θ4 satisfies [10°, 90°].

[0023] In some embodiments, within the plane projection surface of the flat plate, the diversion hole is a waist-shaped hole, including a straight hole section, a first arc hole section, and a second arc hole section. The first arc hole section is connected to one side of the straight hole section, and the second arc hole section is connected to the other side of the straight hole section. The distance between the line connecting the centers of the first arc hole section and the second arc hole section and the center of the protruding part is R4. The arc radii of the first arc hole section and the second arc hole section are both R5. The vertical distance between the bottom end and the top end of the slope is h4. The central angle between the line connecting the center of the first arc hole section and the center of the protruding part and the line connecting the center of the second arc hole section and the center of the protruding part is θ0. When the liquid separation partition further includes a liquid collection tank, the width of the liquid collection tank is R6, and the number of the diversion holes is n. R4 = 0.5(R 6- R2)+R2, R5 = 0.6(R 6- R2), h4 = [0.5R5, 2.5R5], θ0 = [0, 0.32*(360° / n)], n = [2, 12].

[0024] The present invention also provides a liquid storage device, which includes the liquid separation partition described in any one of the preceding items, and further includes a housing, an inlet pipe, and an outlet pipe. The liquid separation partition is disposed inside the housing. The inlet pipe extends into the housing from above the housing and faces the liquid separation partition, and the outlet pipe extends into the housing from below the housing.

[0025] In some embodiments, the housing includes an upper cylinder, a middle cylinder, and a lower cylinder. The outlet pipe includes a suction straight pipe and a suction elbow that are connected in sequence from top to bottom;

[0026] The outlet pipe includes a first outlet pipe and a second outlet pipe. The first outlet pipe and the second outlet pipe are parallel and penetrate through the inside of the housing, and the upper ends of the first outlet pipe and the second outlet pipe are at the same height.

[0027] In some embodiments, the distance between the lower end surface of the flat plate and the outlet pipe in the vertical direction is h5, and L1 is the maximum distance between the first outlet pipe and the second outlet pipe in the plane projection of the flat plate. It is required that h5 ≥ 0.05L1.

[0028] The present invention also provides a compressor assembly, which includes the liquid storage device described in any one of the preceding items.

[0029] The liquid separation partition board, liquid storage device, compressor assembly and air conditioner provided by the present invention have the following beneficial effects:

[0030] 1. By providing the first drainage groove structure on the protruding part of the liquid separation partition board and the circulation holes at the outer periphery of the flat plate, the present invention can introduce the incoming fluid through the first drainage groove structure, guide and finally discharge the liquid (preferably) in the fluid to the circulation holes at the outer periphery of the flat plate through the first drainage groove structure, effectively avoiding the separated liquid from being disturbed by the air flow again, greatly improving the gas-liquid separation effect, thereby reducing the liquid-carrying amount entering the compressor suction pipe, ensuring that the pressure of the pump body does not suddenly change during the compression process, resulting in the sliding vane disengaging from the roller and hitting the roller again, avoiding the generation of noise or reducing the noise, such as abnormal "ticking sound", and improving the performance of the compressor, especially improving the performance of the compressor under low-temperature working conditions;

[0031] 2. By providing a liquid collection groove on the liquid separation partition board of the liquid storage device, the present invention can effectively separate the paths of the air flow and the liquid flow, enable the separated liquid to flow into the liquid collection groove under the action of the drainage groove, and then enter the liquid storage device along the cylinder wall surface in a continuous liquid flow through the through holes opened on the liquid collection groove, which can greatly reduce the liquid existing in the form of discrete particles and prevent and reduce the liquid from being carried by the gas into the suction pipe.

[0032] 3. By providing a diversion hole penetrating through the flat plate and a slope formed by flanging at the diversion hole, the present invention can form a spiral slope diversion hole, which can promote the formation of a spiral flow field, enhance the centrifugal force of the liquid, make the liquid and the gas generate a large separation centrifugal force, and further improve the gas-liquid separation effect. Description of the Drawings

[0033] Figure 1 is a schematic diagram of the internal structure of the liquid storage device of the present invention;

[0034] Figure 2 is Figure 1 a three-dimensional structure diagram of the liquid separation partition board in

[0035] Figure 3 is Figure 1 a top view of the liquid separation partition board in Figure 1 ;

[0036] Figure 4 is Figure 1 a top view of the liquid separation partition board in Figure 2 ;

[0037] Figure 5 is Figure 4 a sectional view taken along line A-A in

[0038] Figure 6 is Figure 4 a sectional view taken along line B-B in

[0039] Figure 7 is Figure 4 the C-C cross-sectional view in

[0040] Figure 8 is Figure 4 the D-D cross-sectional view in

[0041] Figure 9 the schematic assembly structure diagram of the liquid separation partition of the present invention;

[0042] Figure 10 the schematic internal structure diagram of the single-suction gas pipe liquid reservoir of the present invention;

[0043] Figure 11 is the bar chart of the comparison of the liquid separation capabilities of the prior art solutions 1 and 2 and the liquid reservoir of the present invention;

[0044] Figure 12 is the three-dimensional structure diagram of the liquid separation partition of Alternative Embodiment 1;

[0045] Figure 13 is the top view structure diagram of the liquid separation partition of Alternative Embodiment 2;

[0046] Figure 14 is the top view structure diagram of the liquid separation partition of Alternative Embodiment 3.

[0047] The reference numerals are represented as:

[0048] 1, inlet pipe; 2, upper cylinder; 3, filter screen; 4, filter screen pressing ring; 5, liquid separation partition; 6, straight suction pipe; 7, middle cylinder; 8, lower cylinder; 9, suction elbow;

[0049] 500, flat plate; 501, protruding part; 502a, first drainage groove; 502b, second drainage groove; 502c, third drainage groove; 503, liquid separation tank; 504, liquid collection tank; 505, through hole; 506, diversion hole; 506a, inclined hole part; 506b, through hole part; 507, arc-shaped baffle; 508, slope. Specific Embodiments

[0050] As Figures 1 - 14 shown, the present invention provides a liquid separation partition, which includes:

[0051] A flat plate 500 and a protrusion 501. The flat plate 500 is a ring structure. The protrusion 501 is arranged at the central position of the flat plate 500 and protrudes toward one axial side of the flat plate 500. The protruding surface of the protrusion 501 faces the oncoming flow direction of the fluid. A first drainage groove 502a is extendedly arranged on the protruding surface. A circulation hole 505 (preferably penetrating along the axial direction) is arranged at the outer periphery of the flat plate 500. The first drainage groove 502a can guide the fluid to the upper surface of the flat plate 500, and then discharge it to the lower part of the liquid distribution partition plate 5 through the circulation hole 505.

[0052] In the present invention, through the first drainage groove structure arranged on the protrusion of the liquid distribution partition plate and the circulation hole arranged at the outer periphery of the flat plate, the oncoming flow fluid can be introduced through the first drainage groove structure. The liquid (preferably) in the fluid can be guided and finally led to the circulation hole at the outer periphery of the flat plate and discharged through the first drainage groove structure, effectively avoiding the separated liquid from being disturbed by the air flow again, greatly improving the gas-liquid separation effect, thereby reducing the liquid carry-over amount entering the compressor suction pipe, ensuring that the pump body will not have a pressure mutation during the compression process, resulting in the sliding vane detaching from the roller and hitting the roller again, avoiding generating noise or reducing noise, such as abnormal "ticking sound", and improving the performance of the compressor, especially improving the performance of the compressor under low-temperature working conditions.

[0053] In some embodiments, the top of the protrusion 501 faces the inlet pipe 1 of the liquid storage device. The upper end of the first drainage groove 502a extends to the top to obtain the fluid. The first drainage groove 502a is plural. The plural first drainage grooves 502a are spaced or cross-distributed on the protruding surface. This is a further preferred structural form of the first drainage groove of the present invention. Extending to the top of the protrusion can obtain the fluid from the inlet pipe of the liquid storage device and introduce it into the first drainage groove. In this process, gas-liquid separation can occur, and the separated liquid with a large density can be discharged through the first drainage groove. The plural first drainage grooves can increase the drainage area and further improve the gas-liquid separation effect.

[0054] And / or, the protrusion 501 is a spherical surface structure, forming a convex bulge. The protrusion of the present invention is preferably a spherical surface structure, which can form a structure form of a water flow surface from top to bottom as shown in Figure 2 to quickly guide away the liquid separated during the impact process through the first drainage groove and improve the gas-liquid separation efficiency.

[0055] In some embodiments, when multiple first drainage grooves 502a are spaced apart on the convex surface, the multiple first drainage grooves 502a are spaced apart along the circumferential direction of the convex portion 501; when the multiple first drainage grooves 502a are cross-distributed on the convex surface, within the planar projection of the flat plate 500, the multiple first drainage grooves 502a form multiple diamond textures. The multiple first drainage grooves 502a being spaced apart along the circumferential direction of the convex portion 501 is the preferred structural form of the main embodiment of the present invention, as shown in Figure 2 ; the multiple first drainage grooves 502a forming multiple diamond textures is the preferred structural form of the alternative embodiment 3 of the present invention, as shown in Figure 14 .

[0056] In some embodiments, when the multiple first drainage grooves 502a are spaced apart along the circumferential direction of the convex portion 501, a third drainage groove 502c is further provided between two adjacent first drainage grooves 502a, and the upper end of the third drainage groove 502c does not extend to the top of the convex portion 501. This is the preferred structural form of the alternative embodiment 1 of the present invention, and the gas-liquid separation effect can be further improved through the third drainage groove 502c.

[0057] In some embodiments, a ring-shaped liquid separation groove 503 is provided at the position where the convex portion 501 is connected to the flat plate 500. One end of the first drainage groove 502a is communicated with the liquid separation groove 503 so as to introduce fluid into the liquid separation groove 503, and the fluid in the liquid separation groove 503 can flow to the through hole 505 and be discharged. The present invention can also introduce the liquid in multiple first drainage grooves into the liquid separation groove through the setting of the liquid separation groove, and distribute it to each second drainage groove to achieve the effect of shunting, making the liquid flow more rapidly and further improving the gas-liquid separation effect.

[0058] In some embodiments, a second drainage groove 502b and a liquid collection groove 504 are provided on the flat plate 500. One end of the second drainage groove 502b is communicated with the liquid separation groove 503 and the other end is communicated with the liquid collection groove 504. The second drainage groove 502b extends along the radial direction. The liquid collection groove 504 is an annular groove provided at the radial outer periphery of the flat plate 500, and the liquid collection groove 504 can be communicated with the through hole 505. The present invention can also effectively separate the paths of the air flow and the liquid flow through the liquid collection groove provided on the liquid separation partition of the liquid storage device, so that the separated liquid converges into the liquid collection groove under the action of the drainage groove, and then enters the liquid storage device along the cylinder wall surface in the form of a continuous liquid flow through the through holes opened on the liquid collection groove, which can greatly reduce the liquid existing in the form of discrete particles and prevent and reduce the liquid from being carried by the gas into the suction pipe.

[0059] In some embodiments, the device further includes an arcuate baffle 507 located radially outward from the plate 500. The arcuate baffle 507 is connected to the outer periphery of the plate 500 via connecting ribs, forming the liquid collecting trough 504 between the arcuate baffles 507 and the outer periphery of the plate 500. There are at least two arcuate baffles 507, and the flow holes 505 are formed circumferentially between two adjacent arcuate baffles 507. The present invention also utilizes the provision of the arcuate baffles to integrally secure the liquid separation baffle to the inner wall of the liquid reservoir. The gap between the two arcuate baffle brackets forms an axially extending flow hole, allowing the separated liquid to flow through. The liquid enters the lower end of the liquid separation baffle and flows down along the outer wall, while the gas flows out through the guide hole, achieving gas-liquid separation.

[0060] In some embodiments, the flat plate 500 is formed with a guide hole 506 that passes through both axial ends thereof, and one side of the guide hole 506 is formed as a slope 508 in the form of a flange facing downward, and the guide hole 506 includes an inclined hole portion 506a and a through hole portion 506b, wherein the inclined hole portion 506a is blocked by the slope 508 in the vertical direction, and the through hole portion 506b is vertically continuous. In the present invention, preferably, within the plane projection of the flat plate 500, the slope blocks the inclined hole portion 506a, and the slope 508 does not block the through hole portion 506b. The present invention also forms a spiral slope guide hole by forming a guide hole that passes through the flat plate and a slope that is formed at the guide hole by flanges, which can promote the formation of a spiral flow field, enhance the centrifugal force of the liquid, and generate a larger separation centrifugal force between the liquid and the gas, thereby further improving the gas-liquid separation effect. The gas flows down through the through hole part, while the liquid in the gas-liquid mixture enters the inclined hole part and is caught by the slope, further separating the liquid in the gas.

[0061] In some embodiments, the slope 508 is a curved groove with an arcuate cross-section, with the concave surface of the curved groove facing upward; and / or the guide holes 506 and the slope 508 form a gas flow unit, with multiple gas flow units spaced apart along the circumference of the flat plate 500. This is a preferred structural form of the slope of the present invention. The formation of a curved groove with the concave surface facing upward further promotes the formation of a swirling flow field, enhances the centrifugal force of the liquid, and further improves the gas-liquid separation effect. The combination of multiple guide holes and the slope further enhances the gas-liquid separation effect.

[0062] The airflow needs to pass through the guide groove and the liquid collection groove before flowing down from the circulation hole 505. The flow path is relatively long, which means that the flow resistance of the airflow flowing down from the circulation hole 505 is greater than that of the guide hole 506. Especially when the amount of liquid at the inlet is large, the guide groove and the liquid collection groove will be close to full of liquid, further increasing the flow resistance of the airflow flowing from the circulation hole 505.

[0063] In some embodiments, when the protruding portion 501 has a spherical structure, the arc radius of the protruding portion 501 is R9. In the plane projection plane of the flat plate 500, the distance between the center of the protruding portion 501 and the edge of the protruding portion 501 is R1. The included angle between the line connecting the spherical center of the protruding portion 501 and the edge of the protruding portion 501 and the line connecting the spherical center of the protruding portion 501 and the top of the protruding portion 501 is θ2, and R9 = R1 / sinθ2.

[0064] After R1 is determined, θ2 can be used to define the radius R9 of the convex hull, as Figure 8 shown. If R1 is too small, the gas-liquid separation effect is not obvious. If R1 is too large, it will affect the opening of the diversion holes and reduce the effective flow area of the liquid separation partition. If θ2 is too small, the radius of the convex hull will be relatively large, and the actual forming height of the convex hull will decrease, tending to be flat, which is not conducive to gas-liquid separation. If θ2 is too large, the radius of the convex hull will be relatively small, and the actual forming height of the convex hull will increase. The closer to the straight pipe inlet, the flow resistance at the straight pipe inlet will increase.

[0065] In some embodiments, the value range of R1 is [0.45L1, 0.5L1 + 5], and the value range of θ2 is [15°, 60°], where L1 is the maximum distance between the two outlet pipes in the liquid storage tank in the plane projection of the flat plate 500. [30°, 55°] is optimal. Preferably, R1 = 0.5L1 and θ2 = 30°.

[0066] In some embodiments, the cross-section of the first drainage groove 502a is an arc groove, the forming radius of the first drainage groove 502a is R3 (equivalent to the arc radius, indicating that it is not limited to a semicircle), the height of the center of the inner arc surface of the first drainage groove 502a from the upper plane of the flat plate 500 in the vertical direction is h1, the included angle between the first drainage groove 502a and the plane of the flat plate 500 in the longitudinal section is θ1, the arc radius of the first drainage groove 502a is R8, the number of the diversion holes 506 is n, which is related to the number n of the diversion holes 506 opened on the liquid separation partition. To avoid interference with the diversion holes 506, the value range of R3 is [0.1mm, 0.5R 1 / n], the value range of h1 is [0, 0.6R3], θ1 = [190° - θ2, 205° - θ2], and the included angle between the line connecting the spherical center of the protruding portion 501 and the edge of the protruding portion 501 and the line connecting the spherical center of the protruding portion 501 and the top of the protruding portion 501 is θ2. Preferably, n = 9, R3 = 0.25R 1 / n, h1 = 0.5R3, and θ1 = 198° - θ2.

[0067] If the forming radius of R3 is too large, it is not easy to form and may interfere with the diversion holes; if it is too small, the flow rate will be reduced. If h1 is too large, it is not easy to form; if it is too small, the area of the diversion hole will be reduced, thus reducing the flow rate. If θ1 is too small, it is difficult to form a diversion groove on the convex hull; if it is too large, the depth of the diversion groove will be increased, increasing the forming difficulty of the diversion groove on the convex hull. R8 is the transition arc for forming the diversion groove, and its size has no special requirements.

[0068] In some embodiments, within the plane projection surface of the flat plate 500, the distance between the center of the protruding portion 501 and the edge of the protruding portion 501 is R1, and the distance between the center of the protruding portion 501 and the center of the liquid distribution groove 503 is R2: Liquid distribution groove 503: An annular groove is formed at the planar position of the liquid distribution partition near the convex hull to cause the separation of the flow boundary layer, and the liquid enters the annular groove under the action of gravity. The liquid distribution groove 503 is an arc-shaped groove, and the arc radius thereof is R 10 (equivalent to the forming radius), the height of the center of the inner arc surface of the liquid distribution groove 503 from the upper plane of the flat plate 500 in the vertical direction is h2, R 10 The value range is [0.1 mm, 2 mm], and R2 = R1 + 2R 10 , h2 = [0, 0.6R 10 .

[0069] R 10 If it is too small, it will affect the liquid distribution effect; if it is too large, it will easily interfere with the diversion holes. The limitation of R2 is mainly to prevent interference between the wall liquid distribution groove and the diversion holes. h2 should not be too large, otherwise the actual forming area of the liquid distribution groove will be reduced, affecting the gas-liquid separation effect.

[0070] In some embodiments, the outer diameter of the arc-shaped baffle 507 is R0, the width of the liquid collection groove 504 is R6, the outer diameter of the liquid collection groove 504 is R7, the depth of the liquid collection groove 504 is h3, and R7 = R0 - 2 mm, R6 = [R7 - 1 mm, R7 - 5 mm], h3 = [2 mm, 6 mm].

[0071] The schematic views of each parameter are shown in Figure 5 and Figure 10 , preferably R6 = R7 - 3, h2 = 3.5 mm. The thickness t of the liquid distribution partition is [0.5 mm, 2 mm], preferably t = 0.8 mm.

[0072] R7 determines the positioning of the liquid collection groove in the radial direction, R6 determines the width of the liquid collection groove, and h3 is the depth of the liquid collection groove. The liquid collection groove cooperates with the filter screen pressing ring. The groove width should not be too large, otherwise it will be directly exposed to the gas-liquid mixture above the filter screen, losing the gas-liquid separation effect. If it is too small, it will affect the liquid collection effect, reduce the liquid collection volume, and is not conducive to the gas-liquid separation of the liquid storage device.

[0073] In some embodiments, the flow holes 505 include a first flow hole and a second flow hole that are circumferentially spaced apart. The central angle of the first flow hole is θ3, and the central angle of the second flow hole is θ4. Its main function is to allow the liquid flow in the liquid collection tank to flow into the middle cylinder of the liquid storage device and enter the liquid storage pool along the cylinder wall surface. As Figure 3 shown, its key dimensions are θ3 and θ4 respectively. The value ranges of θ3 and θ4 are both [5°, 50°], and the sum of θ3 and θ4 satisfies [10°, 90°]. Preferably, θ3 = θ4 = 30°.

[0074] θ3 and θ4 determine the opening area of the flow hole. If the hole is too small, it will increase the resistance of the liquid flow flowing into the middle cylinder of the liquid storage device. If it is too large, it will affect the strength of the support and is not conducive to the installation of the filter screen assembly (liquid separation partition + filter screen + damaged by pressing). The characteristic of this hole is direct cutting, and the flow surface is directly attached to the cylinder of the liquid storage device, avoiding disturbance at the joint between the flow hole and the housing.

[0075] In some embodiments, within the plane projection surface of the flat plate 500, the diversion hole 506 is a waist-shaped hole, including a straight hole section, a first arc hole section, and a second arc hole section. The first arc hole section is connected to one side of the straight hole section, and the second arc hole section is connected to the other side of the straight hole section. The distance between the connection line between the centers of the first arc hole section and the second arc hole section and the center of the protruding part 501 is R4. The arc radii of the first arc hole section and the second arc hole section are both R5. The vertical distance between the bottom end and the top end of the slope is h4. The central angle between the connection line between the center of the first arc hole section and the center of the protruding part and the connection line between the center of the second arc hole section and the center of the protruding part is θ0. When the liquid separation partition further includes a liquid collection tank, the width of the liquid collection tank 504 is R6, and the number of the diversion holes 506 is n. The distance from the center of the protruding part is R4, as Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 shown, its key dimensions are R4, R5, h4, and θ0. R4 = 0.5(R 6- R2) + R2, R5 = 0.6(R 6- R2), h4 = [0.5R5, 2.5R5], θ0 = [0, 0.32*(360° / n)], n = [2, 12]. Preferably, h4 = 1.7R5, θ0 = 0.132*(360° / n)], n = 9.

[0076] R4 determines the positioning of the axis of the diversion hole. R5 and θ0 determine the opening area of the diversion hole. h4 determines the slope of the diversion hole, and this value directly affects the gas-liquid separation effect.

[0077] The present invention also provides a liquid reservoir, which includes the liquid separation partition 5 described in any one of the preceding items, and further includes a housing, an inlet pipe 1 and an outlet pipe. The liquid separation partition 5 is disposed inside the housing. The inlet pipe 1 extends into the housing from above the housing and faces the liquid separation partition 5, and the outlet pipe extends into the housing from below the housing.

[0078] In some embodiments, the housing includes an upper cylinder 2, a middle cylinder 7 and a lower cylinder 8. The outlet pipe includes a suction straight pipe 6 and a suction elbow 9 that are connected in sequence from top to bottom.

[0079] The outlet pipe includes a first outlet pipe and a second outlet pipe. The first outlet pipe and the second outlet pipe are parallelly disposed inside the housing, and the upper ends of the first outlet pipe and the second outlet pipe are at the same height.

[0080] In some embodiments, the assembly dimension h5 of the liquid separation partition. In the vertical direction, the distance between the lower end surface of the flat plate 500 and the outlet pipe is h5. L1 is the maximum distance between the first outlet pipe and the second outlet pipe within the plane projection of the flat plate 500. As Figure 9 shown, h5 is the distance between the lower surface of the flat plate of the liquid separation partition and the inlet end surface of the suction straight pipe 6. If h5 is too small, it will increase the suction resistance loss. If it is too large, it will reduce the effective liquid storage volume of the liquid reservoir. Considering reducing the suction resistance loss, it is required that h5≥0.05L1, and preferably h5 = 0.26L1.

[0081] For the purpose of liquid separation, the larger it is within the feasible range, the better. However, the larger h5 is, the smaller the effective liquid storage volume of the liquid reservoir will be when the height of the cylinder is fixed. It needs to be designed in combination with the effective liquid storage volume of the liquid reservoir.

[0082] The present invention also provides a compressor assembly, which includes the liquid reservoir described in any one of the preceding items.

[0083] The present invention effectively separates the paths of the gas flow and the liquid flow by reasonably arranging the drainage grooves and the liquid collection grooves on the liquid separation partition of the liquid reservoir, so that the separated liquid converges into the liquid collection groove under the action of the drainage groove, and then enters the liquid reservoir along the cylinder wall surface in the form of a continuous liquid flow through the through holes opened on the liquid collection groove, which can greatly reduce the liquid carried by the gas in the form of discrete particles and enter the suction pipe.

[0084] The present invention also provides an air conditioner, which includes the compressor assembly described above.

[0085] Starting from the perspective of fluid flow control, the present invention designs a liquid separation partition to effectively achieve gas-liquid separation of the gas-liquid mixture entering the liquid reservoir under the action of the liquid separation partition, thereby reducing the liquid carry-over amount entering the suction pipe and improving the performance of the compressor under low-temperature conditions.

[0086] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention. The above is only the preferred implementation manner of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and variations can still be made, and these improvements and variations should also be regarded as within the protection scope of the present invention.

Claims

1. A liquid separation partition, characterized in that: Comprising: A flat plate (500) and a protruding portion (501), the flat plate (500) being a ring structure, the protruding portion (501) being disposed at the center position of the flat plate (500) and protruding towards one axial side of the flat plate (500), the convex surface of the protruding portion (501) being opposite to the oncoming flow direction of the fluid, a first drainage groove (502a) being provided on the convex surface in an extending manner, a circulation hole (505) being provided at the outer periphery of the flat plate (500), and the first drainage groove (502a) being capable of guiding the fluid to the upper surface of the flat plate (500), and then discharging it to the lower side of the liquid distribution partition plate (5) through the circulation hole (505); The protruding portion (501) is a spherical structure and forms a convex bulge; the arc radius of the protruding portion (501) is R9, in the plane projection surface of the flat plate (500), the distance between the center of the protruding portion (501) and the edge of the protruding portion (501) is R1, and the included angle between the connection line between the sphere center of the protruding portion (501) and the edge of the protruding portion (501) and the connection line between the sphere center of the protruding portion (501) and the top of the protruding portion (501) is θ2, and there is R9 = R1 / sinθ2; The value range of R1 is [0.45L1, 0.5L1 + 5], and the value range of θ2 is [15°, 60°], where L1 is the maximum distance between two outlet pipes in the liquid storage container in the plane projection of the flat plate (500).

2. The liquid distribution partition plate according to claim 1, wherein: The top of the protruding portion (501) is opposite to the inlet pipe (1) of the liquid storage container, and the upper end of the first drainage groove (502a) extends to the top to obtain the fluid; the first drainage groove (502a) is plural, and the plural first drainage grooves (502a) are spaced apart or cross-distributed on the convex surface.

3. The liquid distribution partition plate according to claim 2, wherein: When the plural first drainage grooves (502a) are spaced apart on the convex surface, the plural first drainage grooves (502a) are spaced apart along the circumferential direction of the protruding portion (501); when the plural first drainage grooves (502a) are cross-distributed on the convex surface, in the plane projection of the flat plate (500), the plural first drainage grooves (502a) form plural diamond textures.

4. The liquid distribution partition plate according to claim 3, wherein: When the plural first drainage grooves (502a) are spaced apart along the circumferential direction of the protruding portion (501), a third drainage groove (502c) is further provided between two adjacent first drainage grooves (502a), and the upper end of the third drainage groove (502c) does not extend to the top of the protruding portion (501).

5. The liquid distribution partition plate according to claim 1, wherein: A ring-shaped liquid distribution groove (503) is provided at the position where the protruding part (501) is in contact with the flat plate (500). One end of the first drainage groove (502a) is communicated with the liquid distribution groove (503) so as to introduce fluid into the liquid distribution groove (503), and the fluid in the liquid distribution groove (503) can flow to the through hole (505) and be discharged.

6. The liquid separation partition plate according to claim 5, wherein: A second drainage groove (502b) and a liquid collection groove (504) are provided on the flat plate (500). One end of the second drainage groove (502b) is communicated with the liquid distribution groove (503), and the other end is communicated with the liquid collection groove (504). The second drainage groove (502b) extends in the radial direction. The liquid collection groove (504) is an annular groove provided at the radial outer periphery of the flat plate (500), and the liquid collection groove (504) can be communicated with the through hole (505).

7. The liquid separation partition plate according to claim 6, wherein: It further includes an arc-shaped baffle (507) located on the radial outer side of the flat plate (500). The arc-shaped baffle (507) is connected to the outer periphery of the flat plate (500) through a connecting rib, and the liquid collection groove (504) is formed between the arc-shaped baffle (507) and the outer periphery of the flat plate (500). There are at least two arc-shaped baffles (507), and the through hole (505) is formed in the circumferential direction between two adjacent arc-shaped baffles (507).

8. The liquid separation partition plate according to any one of claims 1-7, wherein: A diversion hole (506) is formed through the axial two end faces of the flat plate (500). One side of the diversion hole (506) faces downward and is formed as a slope (508) in the form of a flanging. The diversion hole (506) includes an inclined hole part (506a) and a through hole part (506b). The inclined hole part (506a) is blocked by the slope (508) in the vertical direction, and the through hole part (506b) is penetrated in the vertical direction.

9. The liquid separation partition plate according to claim 8, wherein: The slope (508) is an arc-shaped groove with an arc-shaped cross section, and the concave surface of the arc-shaped groove faces upward; and / or, the diversion hole (506) and the slope (508) form an air passing unit. There are multiple air passing units, and the multiple air passing units are distributed at intervals in the circumferential direction of the flat plate (500).

10. The liquid separation partition plate according to claim 8, wherein: The cross-section of the first drainage groove (502a) is an arc groove, the forming radius of the first drainage groove (502a) is R3, the height of the center of the inner arc surface of the first drainage groove (502a) from the upper plane of the flat plate (500) in the vertical direction is h1, the angle between the first drainage groove (502a) and the plane of the flat plate (500) in the longitudinal section is θ1, the arc radius of the first drainage groove (502a) is R8, the number of the diversion holes (506) is n, and the value range of R3 is [0.1 mm, 0.5R1 / n], the value range of h1 is (0, 0.6R3], θ1 = [190° - θ2, 205° - θ2], and the angle between the line connecting the center of the sphere of the protruding part (501) and the edge of the protruding part (501) and the line connecting the center of the sphere of the protruding part (501) and the top of the protruding part (501) is θ2.

11. The liquid separation partition plate according to claim 8, wherein: In the plane projection plane of the flat plate (500), the distance between the center of the protruding portion (501) and the edge of the protruding portion (501) is R1, and the distance between the center of the protruding portion (501) and the center of the liquid separation groove (503) is R2; the liquid separation groove (503) is an arc-shaped groove with an arc surface radius of R 10 , the height of the center of the inner arc surface of the liquid separation groove (503) from the upper plane of the flat plate (500) in the vertical direction is h2, R 10 ranges from [0.1 mm, 2 mm], and R2 = R1 + 2R 10 , h2 = (0, 0.6R 10 .

12. The liquid separation partition plate according to claim 7, wherein: The outer diameter of the arc-shaped baffle (507) is R0, the width of the liquid collecting groove (504) is R6, the outer diameter of the liquid collecting groove (504) is R7, the depth of the liquid collecting groove (504) is h3, and R7 = R0 - 2 mm, R6 = [R7 - 1 mm, R7 - 5 mm], h3 = [2 mm, 6 mm].

13. The liquid separation partition plate according to claim 1, wherein: The flow holes (505) include a first flow hole and a second flow hole arranged at intervals in the circumferential direction, the central angle of the first flow hole is θ3, the central angle of the second flow hole is θ4, the value ranges of both θ3 and θ4 are [5°, 50°], and the sum of θ3 and θ4 satisfies [10°, 90°].

14. The liquid separation partition plate according to claim 11, wherein: In the plane projection plane of the flat plate (500), the diversion hole (506) is a kidney-shaped hole, including a straight hole section, a first arc hole section and a second arc hole section. The first arc hole section is connected to one side of the straight hole section, and the second arc hole section is connected to the other side of the straight hole section. The distance between the connection line between the centers of the first arc hole section and the second arc hole section and the center of the protrusion (501) is R4. The arc radii of the first arc hole section and the second arc hole section are both R5. The vertical distance between the bottom end and the top end of the slope is h4. The central angle between the connection line between the center of the first arc hole section and the center of the protrusion and the connection line between the center of the second arc hole section and the center of the protrusion is θ0. When the liquid separation partition further includes a liquid collection tank, the width of the liquid collection tank (504) is R6. The number of the diversion holes (506) is n, R4 = 0.5(R6 - R2) + R2, R5 = 0.6(R6 - R2), h4 = [0.5R5, 2.5R5], θ0 = (0, 0.32*(360° / n)], n = [2, 12].

15. A liquid reservoir, characterized in that: It includes the liquid separation partition (5) according to any one of claims 1-14, and further includes a housing, an inlet pipe (1) and an outlet pipe. The liquid separation partition (5) is arranged in the housing. The inlet pipe (1) extends into the housing from above the housing and faces the liquid separation partition (5). The outlet pipe extends into the housing from below the housing.

16. The liquid storage device according to claim 15, wherein: The housing includes an upper cylinder (2), a middle cylinder (7) and a lower cylinder (8). The outlet pipe includes an air suction straight pipe (6) and an air suction elbow (9) that are connected in sequence from top to bottom; The outlet pipe includes a first outlet pipe and a second outlet pipe. The first outlet pipe and the second outlet pipe are parallel and penetrate through the interior of the housing, and the upper ends of the first outlet pipe and the second outlet pipe are at the same height.

17. The liquid storage device according to claim 16, wherein: The distance between the lower end surface of the flat plate (500) and the outlet pipe in the vertical direction is h5. L1 is the maximum distance between the first outlet pipe and the second outlet pipe in the plane projection of the flat plate (500). It is required that h5 ≥ 0.05L1.

18. A compressor assembly, characterized in that: It includes the liquid storage device according to any one of claims 15-17.

19. An air conditioner, characterized in that: It includes the compressor assembly according to claim 18.

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