Air supply structure of rolling rotor compressor

Abstract

The invention relates to the technical field of rotor compressors, and particularly discloses an air supply structure of a rolling rotor compressor, an intermediate plate is packaged between an upper cylinder and a lower cylinder, the upper cylinder and the lower cylinder are packaged between an upper cylinder cover and a lower cylinder cover, the air supply structure comprises an air supply liquid storage device and a connecting pipe, the air supply liquid storage device is installed outside a shell, and the connecting pipe is connected with the air supply liquid storage device. The air supply liquid storage device is communicated with a connecting pipe, the connecting pipe is arranged in the shell, the connecting pipe is provided with a first air supply end and a second air supply end, the first air supply end is communicated with the upper air cylinder, and the second air supply end is communicated with the lower air cylinder. According to the arrangement, the connecting pipe structure is introduced and arranged in the shell, the upper air cylinder and the lower air cylinder can supplement air independently, air mixing is avoided, it is ensured that each air cylinder can obtain the stable air supplementing amount, the air supplementing and enthalpy increasing effect of the double cylinders is effectively improved, the performance of the compressor is improved, and the whole system runs more efficiently and stably; and the service life of the equipment is prolonged.

Description

Technical Field

[0001] This invention relates to the field of rotary compressor technology, and more particularly to a gas supply structure for a rolling rotor compressor. Background Technology

[0002] A rotary compressor includes a housing, a motor assembly and a pump section housed inside the housing. The pump section typically includes an upper cylinder head, two cylinders, a lower cylinder head and an intermediate plate. During operation, it uses the motor assembly to generate rotational driving force to work. In order to further improve the energy efficiency and performance of the compressor, it is usually necessary to introduce a gas injection structure to inject gas into the cylinders to increase enthalpy.

[0003] Most existing compressors achieve dual-cylinder air injection through the upper cylinder head, intermediate plate, and lower cylinder head. However, designing the injection holes in the intermediate plate can lead to cross-flow, causing gas leakage and affecting performance, making it difficult to ensure the stability and reliability of air injection. Furthermore, the thinness of the intermediate plate further limits its structural strength, sometimes even making injection hole machining impossible. When using the lower cylinder head for air injection, the housing seat ring interferes with the weld between the lower cylinder head and the housing, making machining impossible and increasing manufacturing difficulty. Simultaneously, the injection hole positions in the upper cylinder head suffer from weld interference, preventing external drilling for air injection, thus obstructing the air injection path and further affecting injection efficiency and the overall system stability.

[0004] Therefore, there is an urgent need for a gas supply structure for a rolling rotor compressor to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a gas replenishment structure for a rolling rotor compressor, so as to solve the problem that existing rotor compressors cannot achieve separate gas replenishment for the upper and lower cylinders.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] This invention provides a gas replenishment structure for a rolling rotor compressor. The rolling rotor compressor includes a housing and a pump body section housed within the housing. The pump body section includes an upper cylinder, a lower cylinder, an intermediate plate, an upper cylinder cover, and a lower cylinder cover. The intermediate plate is encapsulated between the upper cylinder and the lower cylinder, and the upper cylinder and the lower cylinder are encapsulated between the upper cylinder cover and the lower cylinder cover. The gas replenishment structure includes a gas replenishment reservoir and a connecting pipe. The gas replenishment reservoir is installed outside the housing and is connected to the connecting pipe. The connecting pipe is built into the housing and has a first gas replenishment end and a second gas replenishment end. The first gas replenishment end is connected to the upper cylinder, and the second gas replenishment end is connected to the lower cylinder.

[0008] As a preferred technical solution for the gas replenishment structure of the above-mentioned rolling rotor compressor, the upper cylinder head is provided with a first gas replenishment channel and a first injection hole communicating with the first gas replenishment channel. The first injection hole communicates with the interior of the upper cylinder, and the first gas replenishment channel communicates with the first gas replenishment end. The lower cylinder head is provided with a second gas replenishment channel and a second injection hole communicating with the second gas replenishment channel. The second injection hole communicates with the interior of the lower cylinder, and the second gas replenishment channel communicates with the second gas replenishment end. Either the first gas replenishment channel or the second gas replenishment channel communicates with the gas replenishment reservoir.

[0009] As a preferred embodiment of the gas replenishment structure for the aforementioned rolling rotor compressor, the first gas replenishment channel includes a main channel and a branch channel. One end of the main channel is connected to the first injection hole, and the other end is connected to the gas replenishment reservoir. One end of the branch channel is connected to the main channel, and the other end is connected to the first gas replenishment end; or...

[0010] The second gas replenishment channel includes a main channel and a sub-channel. One end of the main channel is connected to the second injection hole, and the other end is connected to the gas replenishment reservoir. One end of the sub-channel is connected to the main channel, and the other end is connected to the second gas replenishment end.

[0011] As a preferred technical solution for the gas replenishment structure of the above-mentioned rolling rotor compressor, the gas replenishment structure further includes a sealing plate and several connecting parts. The first gas replenishment end or the second gas replenishment end passes through the sealing plate and is connected to the branch channel. The several connecting parts all pass through the sealing plate and are connected to the end face of the upper cylinder head or the lower cylinder head.

[0012] As a preferred technical solution for the gas replenishment structure of the above-mentioned rolling rotor compressor, the first injection hole and the second injection hole are misaligned in the circumferential direction, and the connecting pipe is bent to accommodate the circumferential angle difference between the first injection hole and the second injection hole.

[0013] As a preferred technical solution of the gas replenishment structure of the above-mentioned rolling rotor compressor, the intermediate plate is provided with a third gas replenishment channel and a third injection hole connected to one end of the third gas replenishment channel. The gas replenishment structure also includes a fourth gas replenishment channel and a fourth injection hole connected to one end of the fourth gas replenishment channel. Either the third gas replenishment channel or the fourth gas replenishment channel is connected to the gas replenishment reservoir.

[0014] The third injection hole is connected to the interior of the upper cylinder, and the fourth air supply channel is opened inside the lower cylinder head, with the fourth injection hole connected to the interior of the lower cylinder; or the third injection hole is connected to the interior of the lower cylinder, and the fourth air supply channel is opened inside the upper cylinder head, with the fourth injection hole connected to the interior of the upper cylinder.

[0015] As a preferred technical solution for the gas replenishment structure of the above-mentioned rolling rotor compressor, the connecting pipe includes a three-way pipe and an axial pipe. The end of the first pipe of the three-way pipe is the first gas replenishment end and is connected to the third gas replenishment channel. The second pipe of the three-way pipe is connected to the axial pipe, and the third pipe of the three-way pipe is connected to the gas replenishment reservoir.

[0016] As a preferred technical solution for the gas replenishment structure of the above-mentioned rolling rotor compressor, the third injection hole and the fourth injection hole are misaligned in the circumferential direction, and the connecting pipe is bent to accommodate the circumferential angle difference between the third injection hole and the fourth injection hole.

[0017] As a preferred technical solution for the gas replenishment structure of the above-mentioned rolling rotor compressor, the main part of the connecting pipe is arranged axially between the circumferential outer wall of the pump body section and the circumferential inner wall of the housing.

[0018] As a preferred technical solution for the gas replenishment structure of the above-mentioned rolling rotor compressor, both the first gas replenishment end and the second gas replenishment end are stepped.

[0019] The beneficial effects of this invention are as follows:

[0020] This invention provides a gas replenishment structure for a rolling rotor compressor. The rolling rotor compressor includes a housing and a pump body section housed within the housing. The pump body section includes an upper cylinder, a lower cylinder, an intermediate plate, an upper cylinder cover, and a lower cylinder cover. The intermediate plate is encapsulated between the upper and lower cylinders, and the upper and lower cylinders are encapsulated between the upper and lower cylinder covers. The gas replenishment structure includes a gas replenishment reservoir and a connecting pipe. The gas replenishment reservoir is installed outside the housing and is connected to the connecting pipe, which is built into the housing. The connecting pipe has a first gas replenishment end and a second gas replenishment end. The first gas replenishment end is connected to the upper cylinder, and the second gas replenishment end is connected to the lower cylinder. This configuration, by introducing the connecting pipe structure and embedding it within the housing, allows for independent gas replenishment to the upper and lower cylinders while preventing cross-contamination. This ensures that each cylinder receives a stable gas replenishment volume, effectively improving the enthalpy enhancement effect of the dual-cylinder gas replenishment, enhancing compressor performance, making the entire system operate more efficiently and stably, and extending the service life of the equipment. Attached Figure Description

[0021] Figure 1 Schematic diagram of the structure of the rolling rotor compressor provided by the present invention Figure 1 ;

[0022] Figure 2 Schematic diagram of the structure of the rolling rotor compressor provided by the present invention Figure 2 ;

[0023] Figure 3 This is a schematic diagram of the upper cylinder head provided by the present invention;

[0024] Figure 4 A schematic diagram of the lower cylinder head provided by the present invention. Figure 1 ;

[0025] Figure 5 Schematic diagram of the connecting pipe and sealing plate provided by the present invention Figure 1 ;

[0026] Figure 6 Schematic diagram of the connecting pipe and sealing plate provided by the present invention Figure 2 ;

[0027] Figure 7 This is a schematic diagram of the structure of the sealing plate provided by the present invention;

[0028] Figure 8 Schematic diagram of the structure of the rolling rotor compressor provided by the present invention Figure 3 ;

[0029] Figure 9 Schematic diagram of the structure of the rolling rotor compressor provided by the present invention Figure 4 ;

[0030] Figure 10 This is a schematic diagram of the structure of the intermediate plate provided by the present invention;

[0031] Figure 11 A schematic diagram of the lower cylinder head provided by the present invention. Figure 2 ;

[0032] Figure 12 Schematic diagram of the connecting pipe provided by the present invention Figure 1 ;

[0033] Figure 13 Schematic diagram of the connecting pipe provided by the present invention Figure 2 .

[0034] in:

[0035] 1. Housing; 2. Upper cylinder; 3. Lower cylinder;

[0036] 4. Upper cylinder head; 41. First air intake passage; 42. First injection port;

[0037] 5. Lower cylinder head; 51. Second air intake passage; 52. Second injection port; 53. Fourth air intake passage; 54. Fourth injection port;

[0038] 6. Intermediate plate; 61. Third air supply channel; 62. Third injection hole;

[0039] 7. Air replenishment reservoir; 8. Connecting pipe; 9. Sealing plate; 10. Injection seat ring; 11. Exhaust pipe; 12. Air inlet reservoir. Detailed Implementation

[0040] Embodiments of the present invention are described in detail below. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0041] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions.

[0042] Unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing" should be interpreted broadly. For example, they can refer to fixed connections or detachable connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and connections within two components or interactions between two components. Those skilled in the art can understand the specific meaning of these terms in this invention based on the specific circumstances.

[0043] Unless otherwise expressly specified and limited, "above" or "below" a second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of a second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" of a second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0044] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0045] Example 1:

[0046] like Figures 1 to 7As shown, this embodiment provides a gas replenishment structure for a rolling rotor compressor. The rolling rotor compressor includes an inlet liquid receiver 12, a housing 1, and a pump body section housed within the housing 1. The pump body section includes an upper cylinder 2, a lower cylinder 3, an intermediate plate 6, an upper cylinder cover 4, and a lower cylinder cover 5. The intermediate plate 6 is encapsulated between the upper cylinder 2 and the lower cylinder 3, and the upper cylinder 2 and the lower cylinder 3 are encapsulated between the upper cylinder cover 4 and the lower cylinder cover 5. The inlet liquid receiver 12 is connected to both the upper cylinder 2 and the lower cylinder 3. The gas replenishment structure includes a gas replenishment liquid receiver 7 and a connecting pipe 8. The gas replenishment liquid receiver 7 is installed outside the housing 1 and is connected to the connecting pipe 8. The connecting pipe 8 is built into the housing 1 and has a first gas replenishment end and a second gas replenishment end. The first gas replenishment end is connected to the upper cylinder 2, and the second gas replenishment end is connected to the lower cylinder 3. This configuration, with the introduction of the connecting pipe 8 structure and its internal integration into the housing 1, allows for separate air supply to the upper cylinder 2 and the lower cylinder 3 while preventing cross-contamination. This ensures that each cylinder receives a stable supply of air, effectively enhancing the air supply and enthalpy increase effect of the dual cylinders, improving compressor performance, making the entire system operate more efficiently and stably, and extending the service life of the equipment.

[0047] Furthermore, the connecting pipe 8 is made of high-strength material, which has good sealing and durability and can withstand the working requirements under high pressure environment.

[0048] Specifically, this embodiment provides the following exemplary solution: the upper cylinder cover 4 has a first air supply channel 41 and a first injection hole 42 connected to the first air supply channel 41. The first injection hole 42 is connected to the interior of the upper cylinder 2, and the first air supply channel 41 is connected to the first air supply end. The lower cylinder cover 5 has a second air supply channel 51 and a second injection hole 52 connected to the second air supply channel 51. The second injection hole 52 is connected to the interior of the lower cylinder 3, and the second air supply channel 51 is connected to the second air supply end. Either the first air supply channel 41 or the second air supply channel 51 is connected to the air supply reservoir 7. This configuration, with a first air injection channel 41 inside the upper cylinder head 4 and a second air injection channel 51 integrated inside the lower cylinder head 5, and coordinated with the air injection reservoir 7, optimizes the spatial layout, achieves a compact design, greatly reduces potential leakage points in the system, minimizes the pressure drop and energy loss of the air injection gas, improves the sealing reliability and long-term durability of the entire air injection system, and ensures that the gas is injected into the upper cylinder 2 at the highest pressure and flow rate, thereby improving the "jet enthalpy enhancement" effect. At the same time, the air injection gas flowing through will exchange heat with the upper cylinder head 4 or the lower cylinder head 5 before entering the upper cylinder 2 or the lower cylinder 3, achieving auxiliary cooling.

[0049] It should be noted that the air replenishment systems of the upper cylinder 2 and the lower cylinder 3 can be adjusted and controlled separately (e.g., through different throttling devices) to achieve independent air replenishment and flow control for the two cylinders, ensuring that the most suitable air replenishment amount is obtained at their respective optimal times, so that the enthalpy increase effect of the two cylinders is maximized simultaneously.

[0050] In this embodiment, the first gas replenishment channel 41 includes a main channel and a branch channel. One end of the main channel is connected to the first injection hole 42, and the other end is connected to the gas replenishment reservoir 7. One end of the branch channel is connected to the main channel, and the other end is connected to the first gas replenishment end. Alternatively, the second gas replenishment channel 51 includes a main channel and a branch channel. One end of the main channel is connected to the second injection hole 52, and the other end is connected to the gas replenishment reservoir 7. One end of the branch channel is connected to the main channel, and the other end is connected to the second gas replenishment end. With this configuration, the main channel is directly connected to the gas replenishment reservoir 7 (high-pressure source) and the corresponding first injection hole 42 or second injection hole 52 (demand end). The branch channel is led out from the main channel and connected to the first or second gas replenishment end. This can buffer the pressure fluctuations from the gas replenishment reservoir 7, provide a relatively stable gas replenishment pressure for the corresponding gas replenishment end, and avoid the impact of drastic pressure changes on the compressor's gas replenishment process, making the gas replenishment more stable and reliable.

[0051] Optionally, to improve the sealing performance during air replenishment, the air replenishment structure also includes a sealing plate 9 and several connecting parts. The first or second air replenishment end passes through the sealing plate 9 and connects to the branch channel. The connecting parts all pass through the sealing plate 9 and are connected to the end face of the upper cylinder head 4 or the lower cylinder head 5. Further, the connecting parts are bolts, and there are two of them. The installation position of the first or second air replenishment end is located between the two bolts.

[0052] Optionally, the first injection hole 42 and the second injection hole 52 are offset in the circumferential direction, and the connecting pipe 8 is bent to accommodate the circumferential angle difference between the first injection hole 42 and the second injection hole 52. With this configuration, the bent shape of the connecting pipe 8 can perfectly compensate for the circumferential angle difference, achieve precise independent dual-path air replenishment, ensure smooth airflow, and improve the air replenishment effect.

[0053] Optionally, the main part of the connecting pipe 8 is axially disposed between the circumferential outer wall of the pump body section and the circumferential inner wall of the casing 1. This arrangement eliminates the need for separate installation space for the connecting pipe 8, greatly optimizing the overall unit's volume layout and achieving a compact structure. At the same time, the low-temperature connecting pipe 8 acts like a "cooling coil" wrapped around the high-temperature compressor, effectively absorbing and carrying away some of the compressor's heat, which helps cool the compressor, reduces its operating temperature, and improves its reliability and lifespan.

[0054] Optionally, in order to provide accurate sealing surface positioning, both the first and second air supply ends are stepped.

[0055] Example 2:

[0056] like Figures 8 to 13As shown, this embodiment provides a gas replenishment structure for a rolling rotor compressor. The rolling rotor compressor includes a housing 1 and a pump body section housed within the housing 1. The pump body section includes an upper cylinder 2, a lower cylinder 3, an intermediate plate 6, an upper cylinder cover 4, and a lower cylinder cover 5. The intermediate plate 6 is encapsulated between the upper cylinder 2 and the lower cylinder 3. The upper cylinder 2 and the lower cylinder 3 are encapsulated between the upper cylinder cover 4 and the lower cylinder cover 5. The gas replenishment structure includes a gas replenishment reservoir 7 and a connecting pipe 8. The gas replenishment reservoir 7 is installed outside the housing 1 and is connected to the connecting pipe 8. The connecting pipe 8 is built inside the housing 1 and has a first gas replenishment end and a second gas replenishment end. The first gas replenishment end is connected to the upper cylinder 2, and the second gas replenishment end is connected to the lower cylinder 3.

[0057] Specifically, this embodiment provides the following exemplary solution: Optionally, the intermediate plate 6 is provided with a third air supply channel 61 and a third injection hole 62 connected to one end of the third air supply channel 61. The air supply structure also includes a fourth air supply channel 53 and a fourth injection hole 54 connected to one end of the fourth air supply channel 53. Either the third air supply channel 61 or the fourth air supply channel 53 is connected to an air supply reservoir 7. The third injection hole 62 is connected to the interior of the upper cylinder 2, the fourth air supply channel 53 is opened in the lower cylinder cover 5, and the fourth injection hole 54 is connected to the interior of the lower cylinder 3; or the third injection hole 62 is connected to the interior of the lower cylinder 3, the fourth air supply channel 53 is opened in the upper cylinder cover 4, and the fourth injection hole 54 is connected to the interior of the upper cylinder 2.

[0058] Optionally, the lower cylinder head 5 is provided with a fourth air supply channel 53 and a fourth injection hole 54 connected to the fourth air supply channel 53. The fourth injection hole 54 is connected to the interior of the lower cylinder 3, and the fourth air supply channel 53 is connected to the second air supply end.

[0059] In this embodiment, the connecting pipe 8 includes a T-shaped tee pipe and an axial pipe. The first end of the tee pipe is the first gas supply end and is connected to the third gas supply channel 61. The second end of the tee pipe is connected to the axial pipe, and the third end of the tee pipe is connected to the gas supply reservoir 7. This configuration, using a single molded T-shaped tee pipe, results in a smoother internal flow channel, less eddy currents and turbulence at bends, reduced gas flow resistance, and improved gas supply efficiency. Furthermore, integrating the connections in three directions onto a single pipe avoids the need for welding and assembling multiple separate straight pipes and elbows, resulting in a compact structure and high space utilization.

[0060] Optionally, the third injection hole 62 and the fourth injection hole 54 are misaligned in the circumferential direction, and the connecting pipe 8 is bent to accommodate the circumferential angle difference between the third injection hole 62 and the fourth injection hole 54.

[0061] In this embodiment, the gas replenishment structure of the rolling rotor compressor further includes an injection seat ring 10 and an exhaust pipe 11. The injection seat ring 10 is fixedly connected to the outer wall of the housing 1. One end of the exhaust pipe 11 is fixedly inserted through the injection seat ring 10 and connected to the connecting pipe 8, while the other end of the exhaust pipe 11 is connected to the gas replenishment reservoir 7. Furthermore, the injection seat ring 10 is welded to the housing 1. This configuration provides the injection seat ring 10 with a stable and reliable external interface, resisting internal and external stresses, providing strong support, and further enhancing the sealing effect.

[0062] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A gas supply structure for a rolling rotor compressor, the rolling rotor compressor comprising a housing (1) and a pump body section housed within the housing (1), the pump body section comprising an upper cylinder (2), a lower cylinder (3), an upper cylinder cover (4), a lower cylinder cover (5), and an intermediate plate (6), the intermediate plate (6) being encapsulated between the upper cylinder (2) and the lower cylinder (3), the upper cylinder (2) and the lower cylinder (3) being encapsulated between the upper cylinder cover (4) and the lower cylinder cover (5), characterized in that, The air replenishment structure includes an air replenishment reservoir (7) and a connecting pipe (8). The air replenishment reservoir (7) is installed outside the housing (1) and is connected to the connecting pipe (8). The connecting pipe (8) is built inside the housing (1) and has a first air replenishment end and a second air replenishment end. The first air replenishment end is connected to the upper cylinder (2) and the second air replenishment end is connected to the lower cylinder (3).

2. The gas supply structure of the rolling rotor compressor according to claim 1, characterized in that, The upper cylinder head (4) has a first air supply channel (41) and a first injection hole (42) connected to the first air supply channel (41). The first injection hole (42) is connected to the interior of the upper cylinder (2). The first air supply channel (41) is connected to the first air supply end. The lower cylinder head (5) has a second air supply channel (51) and a second injection hole (52) connected to the second air supply channel (51). The second injection hole (52) is connected to the interior of the lower cylinder (3). The second air supply channel (51) is connected to the second air supply end. Either the first air supply channel (41) or the second air supply channel (51) is connected to the air supply reservoir (7).

3. The air supply structure of the rolling rotor compressor according to claim 2, characterized in that, The first gas replenishment channel (41) includes a main channel and a branch channel. One end of the main channel is connected to the first injection hole (42), and the other end is connected to the gas replenishment reservoir (7). One end of the branch channel is connected to the main channel, and the other end is connected to the first gas replenishment end; or, The second gas replenishment channel (51) includes a main channel and a sub-channel. One end of the main channel is connected to the second injection hole (52), and the other end is connected to the gas replenishment reservoir (7). One end of the sub-channel is connected to the main channel, and the other end is connected to the second gas replenishment end.

4. The air supply structure of the rolling rotor compressor according to claim 3, characterized in that, The air injection structure also includes a sealing plate (9) and several connecting parts. The first air injection end or the second air injection end passes through the sealing plate (9) and is connected to the sub-channel. Several of the connecting parts pass through the sealing plate (9) and are connected to the end face of the upper cylinder head (4) or the lower cylinder head (5).

5. The gas supply structure of the rolling rotor compressor according to claim 2, characterized in that, The first injection hole (42) and the second injection hole (52) are misaligned in the circumferential direction, and the connecting pipe (8) is bent to accommodate the circumferential angle difference between the first injection hole (42) and the second injection hole (52).

6. The gas supply structure of the rolling rotor compressor according to claim 1, characterized in that, The intermediate plate (6) is provided with a third gas replenishment channel (61) and a third injection hole (62) connected to one end of the third gas replenishment channel (61). The gas replenishment structure also includes a fourth gas replenishment channel (53) and a fourth injection hole (54) connected to one end of the fourth gas replenishment channel (53). Either the third gas replenishment channel (61) or the fourth gas replenishment channel (53) is connected to the gas replenishment reservoir (7). The third injection hole (62) is connected to the interior of the upper cylinder (2), the fourth air supply channel (53) is opened in the lower cylinder head (5), and the fourth injection hole (54) is connected to the interior of the lower cylinder (3); or the third injection hole (62) is connected to the interior of the lower cylinder (3), the fourth air supply channel (53) is opened in the upper cylinder head (4), and the fourth injection hole (54) is connected to the interior of the upper cylinder (2).

7. The gas supply structure of the rolling rotor compressor according to claim 6, characterized in that, The connecting pipe (8) includes a three-way pipe and an axial pipe. The first end of the three-way pipe is the first gas supply end and is connected to the third gas supply channel (61). The second end of the three-way pipe is connected to the axial pipe, and the third end of the three-way pipe is connected to the gas supply reservoir (7).

8. The gas supply structure of the rolling rotor compressor according to claim 6, characterized in that, The third injection hole (62) and the fourth injection hole (54) are misaligned in the circumferential direction, and the connecting pipe (8) is bent to accommodate the circumferential angle difference between the third injection hole (62) and the fourth injection hole (54).

9. The gas supply structure of the rolling rotor compressor according to any one of claims 1-8, characterized in that, The main part of the connecting pipe (8) is arranged axially between the circumferential outer wall of the pump body section and the circumferential inner wall of the housing (1).

10. The gas supply structure of the rolling rotor compressor according to any one of claims 1-8, characterized in that, Both the first gas supply end and the second gas supply end are stepped.

Images