Impeller structure, air supply structure and compressor
By introducing air replenishment channels and rotatable blades into the impeller structure of the centrifugal compressor, the design of impeller air replenishment is realized, solving the problems of insufficient energy efficiency and poor stability of the impeller in the prior art, and achieving efficient and high-reliability compressor performance.
Patent Information
- Application Number
- CN202421522367.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-28
- Publication Date
- 2025-05-30
- Estimated Expiration
- 2034-06-28
AI Technical Summary
When the rotor is running at high speed during multi-stage compression, the existing centrifugal compressors have large rotational deflection, poor stability, and complex mechanical structure, making it difficult to find the best balance between energy efficiency and reliability.
An impeller structure is designed, using the impeller with air replenishment method. By setting up an intake passage, an air replenishment passage and an air outlet passage in the impeller structure, and using rotatable intake blades and air replenishment blades, the air flow is driven to improve performance and stability.
It effectively improves the performance of the compressor and the rotor operation stability, realizes an efficient and high-reliability compressor design, and solves the problem of insufficient impeller energy efficiency.
Smart Images
Figure CN222924651U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of compressors, and particularly relates to an impeller structure, a gas supplementing structure and a compressor. Background Art
[0002] In order to improve the energy efficiency, according to the refrigeration principle, centrifuges make full use of the characteristics of high-efficiency circulation of multi-stage compression, and adopt a two-stage compression gas-increasing enthalpy, a three-stage compression gas-increasing enthalpy or a system with a higher number of stages. Correspondingly, a centrifugal compressor needs to adopt a mechanical structure type of multi-stage compression with gas supplement, and is an impeller cantilever impeller structure. The more stages there are, the longer the cantilever is. When the rotor runs at high speed, the rotational deflection is larger and the stability is worse. Even the vibration is too large and the bearing is worn. Especially in the refrigerant replacement stage, the impeller size is very large, which exacerbates the instability of the multi-stage compressor rotor running at high speed. For compressors with too large geometric dimensions, there are bottlenecks in the overall machine structure design, manufacturing process, assembly process and installation test. Therefore, it restricts the improvement of the compressor capacity in the environment of new generation environmental protection refrigerants, and further restricts the development of new refrigerant centrifugal compressors.
[0003] Therefore, when designing a centrifugal compressor in the prior art, the system enthalpy can be increased and the energy efficiency can be improved by means of gas supplement in the middle of multi-stage compression.
[0004] However, the above method will also lead to a complex mechanical structure and high requirements for the design of the rotor system. There is a problem of contradiction between energy efficiency and reliability, and a compromise is often needed, and the best results of both cannot be achieved.
[0005] Therefore, the prior art needs to be further developed. Summary of the Utility Model
[0006] The purpose of the utility model is to overcome the above technical deficiencies, and provide an impeller structure, a gas supplementing structure and a compressor to solve the technical problem of insufficient energy efficiency of the impeller in the related art.
[0007] To achieve the above technical purpose, the utility model adopts the following technical solutions: An impeller structure is provided, including: a mounting seat, in which a mounting hole penetrating the mounting seat is arranged; a flow dividing part, which is connected to the mounting seat, and there is an air inlet channel between the flow dividing part and the mounting seat; one end of the flow dividing part far from the air inlet channel has a gas supplementing channel; an air outlet part, which is connected to the mounting seat, and there is an air outlet channel between the air outlet part and the mounting seat, and the air outlet channel is communicated with both the air inlet channel and the gas supplementing channel; an air inlet blade, which is arranged in the air inlet channel and is rotatably arranged to drive the air flow in the air inlet channel to flow into the air inlet channel; a gas supplementing blade, which is arranged in the gas supplementing channel and is rotatably arranged to drive the air flow in the gas supplementing channel to flow into the air inlet channel.
[0008] Further, one end of the intake vane is connected to the mounting seat, and the other end of the intake vane is connected to the flow splitting portion; and / or, there are multiple intake vanes, and the multiple intake vanes are arranged around the mounting seat.
[0009] Further, the air supplement vane protrudes from the flow splitting portion; and / or, the air supplement vane extends into the intake passage; and / or, there are multiple air supplement vanes, and the multiple air supplement vanes are arranged around the flow splitting portion.
[0010] Further, the flow splitting portion includes: a first flow splitting plate body that is arranged around the mounting seat and to which the intake vane is connected; a second flow splitting plate body that is connected to the first flow splitting plate body and has a guiding arc surface, and the guiding arc surface is connected to the air supplement vane; a third flow splitting plate body that is connected to the second flow splitting plate body and is arranged around the second flow splitting plate body, and the intake passage is located between the third flow splitting plate body and the air outlet portion.
[0011] Further, the air outlet portion is arranged at an interval from the flow splitting portion to form an air inlet communicating with the air supplement passage between the air outlet portion and the flow splitting portion.
[0012] An air supplement structure includes the above impeller structure. The air supplement structure includes: a first air supplement component that is connected to the flow splitting portion; a second air supplement component; and a first air supply passage communicating with the air supplement passage is formed between the first air supplement component and the second air supplement component.
[0013] Further, the air supplement structure includes a guiding component that is connected to the mounting seat to form a guiding surface on the surface of the guiding component and the mounting seat; the guiding surface is an arc surface; along the direction in which the guiding component is away from the mounting seat, the shortest distance between the guiding surface and the axis of the mounting hole gradually decreases.
[0014] Further, the first air supplement component includes a first air supplement plate, the second air supplement component includes a second air supplement plate, the first air supplement plate and the second air supplement plate are arranged at an interval to form an air supplement inlet communicating with the first air supply passage between the first air supplement plate and the second air supplement plate; both the first air supplement plate and the second air supplement plate are arranged perpendicular to the axis of the mounting hole.
[0015] Further, the first air supplement component includes a third air supplement plate that is connected to the first air supplement plate, and a second air supply passage communicating with the air outlet passage is formed between the third air supplement plate and the guiding component; the third air supplement plate and the first air supplement plate are arranged perpendicular to each other.
[0016] Further, the air supplement structure further includes a third air supplement component, one end of the third air supplement component is connected to the second air supplement component, and the other end of the third air supplement component is connected to the air outlet portion; the third air supplement component and the flow splitting portion enclose the air supplement passage.
[0017] Further, the first air supplement component includes a first overlapping boss, a first accommodating groove is provided on one side of the first overlapping boss, and the shunt portion includes a first overlapping portion located in the first accommodating groove; a first sealing component is provided on the first overlapping boss, and the first sealing component abuts against the first overlapping portion; and / or, the third air supplement component includes a second overlapping boss, a second accommodating groove is provided on one side of the second overlapping boss, and the air outlet portion includes a second overlapping portion located in the second accommodating groove; a second sealing component is provided on the second overlapping boss, and the second sealing component abuts against the second overlapping portion.
[0018] Further, the air supplement structure further includes a diffuser, a diffusing channel is formed in the diffuser, the diffusing channel is communicated with the air outlet channel, and the diffusing channel is communicated to the volute.
[0019] A compressor includes an impeller structure, and the impeller structure is the above-mentioned impeller structure.
[0020] Beneficial effects:
[0021] 1. By adopting the method of air supplement with the impeller, the impeller structure of the present utility model can effectively improve the performance, and at the same time can improve the running stability of the rotor, so as to achieve the purpose of high efficiency and high reliability.
[0022] 2. The impeller structure of the present utility model designs a corresponding air supplement structure to ensure the effectiveness of air supplement and the efficiency of the compressor. Description of the drawings
[0023] Figure 1 is a schematic structural diagram of the impeller structure adopted in the embodiment of the present utility model;
[0024] Figure 2 is a schematic structural diagram of the air supplement structure adopted in the embodiment of the present utility model;
[0025] Figure 3 is a partial enlarged schematic diagram of part I of the air supplement structure adopted in the embodiment of the present utility model;
[0026] Figure 4 is a schematic structural diagram of the compressor adopted in the embodiment of the present utility model.
[0027] Among them, the above-mentioned drawings include the following reference numerals:
[0028] 10. Intake channel; 20. Air supplement channel; 30. First air supply channel; 40. Second air supply channel; 50. Air outlet channel;
[0029] 1. Mounting base; 2. Diverting part; 21. First diverting plate body; 22. Second diverting plate body; 221. Flow guiding arc surface; 23. Third diverting plate body; 3. Air outlet part; 4. Intake blade; 5. Supplementary air blade; 6. First supplementary air component; 61. First supplementary air plate; 63. Third supplementary air plate; 64. First overlapping boss; 65. First accommodating groove; 66. First sealing component; 7. Second supplementary air component; 71. Second supplementary air plate; 8. Flow guiding component; 81. Flow guiding surface; 9. Third supplementary air component; 91. Second overlapping boss; 92. Second accommodating groove; 93. Second sealing component; 100. Diffuser; 101. Diffusion channel; 200. Volute. Detailed implementation mode
[0030] In order to enable those skilled in the art to better understand the solution of this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of this application.
[0031] See Figures 1 to 4 , according to the embodiment of the present invention, an impeller structure is provided, including: a mounting base 1, in which a mounting hole 11 penetrating the mounting base 1 is provided; a diverting part 2, the diverting part 2 is connected to the mounting base 1, and an intake passage 10 is provided between the diverting part 2 and the mounting base 1; one end of the diverting part 2 away from the intake passage 10 has a supplementary air passage 20; an air outlet part 3, the air outlet part 3 is connected to the mounting base 1, and an air outlet passage 50 is provided between the air outlet part 3 and the mounting base 1, and the air outlet passage 50 is communicated with both the intake passage 10 and the supplementary air passage 20; an intake blade 4, arranged in the intake passage 10, and the intake blade 4 is rotatably arranged to drive the air flow in the intake passage 10 to flow into the intake passage 10; a supplementary air blade 5, arranged in the supplementary air passage 20, and the supplementary air blade 5 is rotatably arranged to drive the air flow in the supplementary air passage 20 to flow into the intake passage 10. With the above settings, a supplementary air passage 20 is added to the existing impeller structure. The supplementary air passage 20 can be communicated with a suitable position outside the impeller, so that the external air flow enters the air outlet passage 50 through the supplementary air passage 20. By adopting the method of the impeller with supplementary air, the performance can be effectively improved, and at the same time, the running stability of the rotor can be improved, so as to achieve the purpose of high efficiency and high reliability. The impeller structure of this embodiment enables intermediate supplementary air to be carried out in the first-stage compression, thereby improving the energy efficiency and solving the technical problem of insufficient energy efficiency of the impeller in the related art.
[0032] In the impeller structure of this embodiment, see Figure 1, one end of the intake vane 4 is connected to the mounting seat 1, and the other end of the intake vane 4 is connected to the flow splitting part 2; in this way, the setting of the intake vane 4 can be made more firm.
[0033] In order to achieve the effect of improving the compression efficiency, there are multiple intake vanes 4, and the multiple intake vanes 4 are arranged around the mounting seat 1.
[0034] In order to achieve the effect of driving the air flow into the air supplement channel 20, in the impeller structure of this embodiment, the air supplement vane 5 protrudes from the flow splitting part 2;
[0035] In the impeller structure of this embodiment, the air supplement vane 5 extends into the intake channel 10; in this way, the air flow velocity in the air supplement channel 20 can be made faster, increasing the air flow rate.
[0036] In order to achieve the effect of improving the compression efficiency, in the impeller structure of this embodiment, there are multiple air supplement vanes 5, and the multiple air supplement vanes 5 are arranged around the flow splitting part 2.
[0037] See Figure 1 , in the impeller structure of this embodiment, the flow splitting part 2 includes: a first flow splitting plate body 21, the first flow splitting plate body 21 is arranged around the mounting seat 1, and the intake vane 4 is connected to the first flow splitting plate body 21; a second flow splitting plate body 22, the second flow splitting plate body 22 is connected to the first flow splitting plate body 21, the second flow splitting plate body 22 has a guiding arc surface 221, and the guiding arc surface 221 is connected to the air supplement vane 5; a third flow splitting plate body 23, the third flow splitting plate body 23 is connected to the second flow splitting plate body 22, the third flow splitting plate body 23 is arranged around the second flow splitting plate body 22, and the intake channel 10 is located between the third flow splitting plate body 23 and the air outlet part 3. With the above settings, the flow splitting part 2 is composed of different plate bodies, and the extending directions of each plate body are all different. In this way, the air suction area of the air supplement channel 20 can be increased, and the air supplement efficiency can be increased.
[0038] In the impeller structure of this embodiment, the air outlet part 3 is arranged at an interval from the flow splitting part 2 to form an air inlet connected to the air supplement channel 20 between the air outlet part 3 and the flow splitting part 2. In this way, the communication area between the air supplement channel 20 and the outside can be increased, and the air intake mode of the air supplement channel 20 can be made more diverse.
[0039] See Figures 2 to 4 , the air supplement structure of this embodiment includes the above-mentioned impeller structure, and the air supplement structure includes: a first air supplement component 6, the first air supplement component 6 is connected to the flow splitting part 2; a second air supplement component 7; there is a first air supply channel 30 communicating with the air supplement channel 20 between the first air supplement component 6 and the second air supplement component 7. With the above settings, by setting the first air supply channel 30, the outside air flow is introduced into the air supplement channel 20, and the first air supply channel 30 is connected to a suitable position according to different needs, thereby increasing the practicability of the air supplement structure.
[0040] In the air supplement structure of this embodiment, refer to Figures 2 to 4 , the air supplement structure includes a diversion component 8, and the diversion component 8 is connected to the mounting seat 1 to form a diversion surface 81 on the surfaces of the diversion component 8 and the mounting seat 1; the diversion surface 81 is an arc surface; along the direction in which the diversion component 8 is away from the mounting seat 1, the shortest distance between the diversion surface 81 and the axis of the mounting hole 11 gradually decreases. That is, when the diversion surface 81 extends from the entrance into the channel interior, it gradually deviates from the motor shaft, thereby guiding the air flow. In this way, the pressure of the air flow entering the intake channel 10 can be increased, thereby driving the rapid flow of the air flow in the air supplement channel 20.
[0041] In the air supplement structure of this embodiment, refer to Figures 2 to 4 , the first air supplement component 6 includes a first air supplement plate 61, the second air supplement component 7 includes a second air supplement plate 71, and the first air supplement plate 61 and the second air supplement plate 71 are arranged at intervals to form an air supplement inlet 62 communicating with the first air supply channel 30 between the first air supplement plate 61 and the second air supplement plate 71; both the first air supplement plate 61 and the second air supplement plate 71 are arranged perpendicular to the axis of the mounting hole 11. In this way, the various air flow channels are kept as far away as possible, and more air can be taken from the outside.
[0042] Specifically, the first air supplement component 6 and the second air supplement component 7 are 360-degree uniform circular ring structures, so that the overall force is balanced when the air supplement structure is working.
[0043] Refer to Figures 2 to 4 , in the air supplement structure of this embodiment, the first air supplement component 6 includes a third air supplement plate 63, the third air supplement plate 63 is connected to the first air supplement plate 61, and there is a second air supply channel 40 communicating with the air outlet channel 50 between the third air supplement plate 63 and the diversion component 8; the third air supplement plate 63 and the first air supplement plate 61 are arranged perpendicular to each other. In this way, the various air flow channels are kept as far away as possible, and more air can be taken from the compressor, improving the compression efficiency.
[0044] In the air supplement structure of this embodiment, the air supplement structure further includes a third air supplement component 9, one end of the third air supplement component 9 is connected to the second air supplement component 7, and the other end of the third air supplement component 9 is connected to the air outlet part 3; the third air supplement component 9 and the diversion part 2 enclose an air supplement channel 20.
[0045] Refer to Figure 3, in the air supplement structure of this embodiment, the first air supplement component 6 includes a first overlapping boss 64. One side of the first overlapping boss 64 is provided with a first receiving groove 65. The shunt part 2 includes a first overlapping part 24 located in the first receiving groove 65; a first sealing component 66 is arranged on the first overlapping boss 64, and the first sealing component 66 abuts against the first overlapping part 24; and / or, the third air supplement component 9 includes a second overlapping boss 91. One side of the second overlapping boss 91 is provided with a second receiving groove 92. The air outlet part 3 includes a second overlapping part 32 located in the second receiving groove 92; a second sealing component 93 is arranged on the second overlapping boss 91, and the second sealing component 93 abuts against the second overlapping part 32.
[0046] With the above arrangement, the connection points of each part are placed in the receiving groove, making the connection of the plate body transition smoothly, which is beneficial to the flow of air. A sealing component is arranged between the connection points to ensure the airtightness of the structure.
[0047] See Figure 2 、 Figure 4 , the air supplement structure further includes a diffuser 100. The diffuser 100 has a diffuser channel 101. The diffuser channel 101 is communicated with the air outlet channel 50, and the diffuser channel 101 is communicated to the volute 200. In this way, the pressure of the air flow provided in the compressor is ensured.
[0048] The compressor of this embodiment Figure 4 , includes an impeller structure, and the impeller structure is the above-mentioned impeller structure. By adopting the method of air supplement with the impeller, the performance can be effectively improved, and at the same time, the running stability of the rotor can be improved, so as to achieve the purpose of high efficiency and high reliability.
[0049] Embodiment 1:
[0050] As Figure 2 shown, the air supplement structure is mainly composed of a first air supplement component 6, a second air supplement component 7 and a third air supplement component 9: The first air supplement component 6 and the second air supplement component 7 are connected to the box body. The first air supplement component 6, the second air supplement component 7 and the third air supplement component 9 are connected by fasteners inside the compressor to form an annular air supplement space, providing an air supplement environment for the impeller. This space is communicated with the air supplement position of the impeller; The main structure of the impeller is as Figure 1As shown, at the side of the impeller wheel cover, an appropriate position is selected as the air supply position. At the same time, with the air supply position as the boundary, the blade design of the front half of the impeller and the blade design of the back half adopt different design schemes, and the height of the blade of the back half is increased to meet the requirement that there is no air supply flow in the front half and there is air supply flow in the back half. At the same time, in order to ensure that the direction and speed of the air supply gas entering the impeller will not conflict with the gas in the impeller, the wheel cover designed in the front half is also processed with guide vanes with the same impeller blade profile. The air supply channel 20 provided by the impeller is preferably set at the wheel cover to facilitate structural layout. The impeller air supply channel 20 is at least one, and multiple settings can also be made, which is specifically determined according to the number of system cycle stages.
[0051] Embodiment 2:
[0052] like Figure 2 As shown, the first air-supplementing component 6 and the third air-supplementing component 9 are respectively designed with sealing structures with the front half wheel cover and the rear half wheel cover to ensure that the gas in the air-supplementing flow channel cannot leak and the compressed high-pressure gas flows to the corresponding impeller air-supplementing port; the lower edge structural curve of the third air-supplementing component 9 is the same as the blade top curve in the impeller design, and in order to ensure the stability of the impeller rotation, the third air-supplementing component 9 should retain a gap of 0.1 mm between the tip of the guide vane on the front wheel cover, and this gap should not be too large, otherwise it will affect the direction of the flow field entering the impeller, thereby affecting the overall efficiency of the centrifugal compressor.
[0053] This structure is not only suitable for single impeller compression, the specific number of stages is selected according to the working conditions and pressure ratio changes.
[0054] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.
[0055] Optionally, the specific examples in this embodiment may refer to the examples described in the above embodiments, and this embodiment will not be described in detail here.
[0056] The serial numbers of the above-mentioned embodiments of the present application are for description only and do not represent the advantages or disadvantages of the embodiments.
[0057] In the above embodiments of the present application, the descriptions of the various embodiments each have their own emphasis. For parts not detailed in a certain embodiment, reference may be made to the relevant descriptions of other embodiments.
[0058] The above are only the preferred embodiments of the present application. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present application, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present application.
Claims
1. An impeller structure, characterized in that: include: A mounting seat (1), wherein a mounting hole (11) is provided in the mounting seat (1) and passes through the mounting seat (1); A flow splitter (2), the flow splitter (2) being connected to the mounting seat (1), an air intake passage (10) being provided between the flow splitter (2) and the mounting seat (1); an air supply passage (20) being provided at one end of the flow splitter (2) away from the air intake passage (10); An air outlet portion (3), the air outlet portion (3) being connected to the mounting seat (1), an air outlet channel (50) being provided between the air outlet portion (3) and the mounting seat (1), the air outlet channel (50) being in communication with both the air inlet channel (10) and the air supply channel (20); An air intake blade (4) is arranged in the air intake passage (10), and the air intake blade (4) is rotatably arranged to drive the airflow in the air intake passage (10) to flow into the air intake passage (10); An air supply blade (5) is arranged in the air supply channel (20), and the air supply blade (5) is rotatably arranged to drive the air flow in the air supply channel (20) to flow to the air intake channel (10).
2. The impeller structure according to claim 1, characterized in that: One end of the air intake blade (4) is connected to the mounting seat (1), and the other end of the air intake blade (4) is connected to the flow divider (2); and / or, There are a plurality of air intake blades (4), and the plurality of air intake blades (4) are arranged around the mounting seat (1).
3. The impeller structure according to claim 1, characterized in that: The air supply blade (5) is arranged to protrude from the flow dividing portion (2); and / or, The air supplement blade (5) extends into the air intake passage (10); and / or, There are a plurality of air-supplementing blades (5), and the plurality of air-supplementing blades (5) are arranged around the flow-dividing portion (2).
4. The impeller structure according to claim 1, characterized in that: The diversion portion (2) comprises: a first splitter plate body (21), the first splitter plate body (21) being arranged around the mounting seat (1), the air intake blade (4) being connected to the first splitter plate body (21); a second flow dividing plate body (22), the second flow dividing plate body (22) being connected to the first flow dividing plate body (21), the second flow dividing plate body (22) having a flow guiding arc surface (221), the flow guiding arc surface (221) being connected to the air supply blade (5); A third splitter plate body (23), the third splitter plate body (23) being connected to the second splitter plate body (22), the third splitter plate body (23) being arranged around the second splitter plate body (22), and the air inlet channel (10) being located between the third splitter plate body (23) and the air outlet portion (3).
5. The impeller structure according to claim 1, characterized in that: The air outlet portion (3) and the flow diversion portion (2) are arranged at intervals, so as to form an air inlet communicating with the air supplement channel (20) between the air outlet portion (3) and the flow diversion portion (2).
6. An air supply structure, comprising the impeller structure according to any one of claims 1 to 5, characterized in that: The gas replenishing structure comprises: a first air supply component (6), the first air supply component (6) being connected to the flow dividing portion (2); A second air supply component (7); a first air supply channel (30) communicating with the air supply channel (20) is provided between the first air supply component (6) and the second air supply component (7).
7. The air replenishing structure according to claim 6, characterized in that: The air supply structure comprises a flow guide component (8), the flow guide component (8) being connected to the mounting seat (1) so as to form a flow guide surface (81) on the surfaces of the flow guide component (8) and the mounting seat (1); the flow guide surface (81) is an arc surface; and along the direction in which the flow guide component (8) moves away from the mounting seat (1), the shortest distance between the flow guide surface (81) and the axis of the mounting hole (11) gradually decreases.
8. The air replenishing structure according to claim 7, characterized in that: The first air supply component (6) comprises a first air supply plate (61), and the second air supply component (7) comprises a second air supply plate (71). The first air supply plate (61) and the second air supply plate (71) are arranged at an interval so as to form an air supply inlet (62) connected to the first air supply channel (30) between the first air supply plate (61) and the second air supply plate (71). The first air supply plate (61) and the second air supply plate (71) are both arranged perpendicular to the axis of the mounting hole (11).
9. The air replenishing structure according to claim 8, characterized in that: The first air supply component (6) comprises a third air supply plate (63), the third air supply plate (63) being connected to the first air supply plate (61), and a second air supply channel (40) communicating with the air outlet channel (50) being provided between the third air supply plate (63) and the flow guide component (8); the third air supply plate (63) and the first air supply plate (61) are arranged perpendicular to each other.
10. The air replenishing structure according to claim 6, characterized in that: The air supply structure further comprises a third air supply component (9), one end of the third air supply component (9) being connected to the second air supply component (7), and the other end of the third air supply component (9) being connected to the air outlet portion (3); the third air supply component (9) and the diverter portion (2) enclose the air supply channel (20).
11. The air replenishing structure according to claim 10, characterized in that: The first air replenishing component (6) comprises a first overlapping boss (64), a first receiving groove (65) is provided on one side of the first overlapping boss (64), the flow dividing portion (2) comprises a first overlapping portion (24) located in the first receiving groove (65); a first sealing component (66) is provided on the first overlapping boss (64), the first sealing component (66) abuts against the first overlapping portion (24); and / or, The third air replenishing component (9) comprises a second overlapping boss (91), a second accommodating groove (92) being provided on one side of the second overlapping boss (91), and the air outlet portion (3) comprises a second overlapping portion (32) located in the second accommodating groove (92); a second sealing component (93) is provided on the second overlapping boss (91), and the second sealing component (93) abuts against the second overlapping portion (32).
12. The air replenishing structure according to claim 6, characterized in that: The air supply structure further comprises a diffuser (100), wherein the diffuser (100) has a diffuser channel (101), the diffuser channel (101) is connected to the air outlet channel (50), and the diffuser channel (101) is connected to the volute (200).
13. A compressor, comprising an impeller structure, characterized in that: The impeller structure is the impeller structure according to any one of claims 1 to 5.