Compressor exhaust and compressor

Abstract

The present invention provides a compressor exhaust device and a compressor, wherein the compressor exhaust device includes an exhaust pipe, the exhaust pipe is arranged on the compressor housing, and the exhaust pipe has a movable pipe section that is movably arranged, at least a part of the movable pipe section is located inside the compressor housing, the movable pipe section has an air inlet for exhaust, the gas in the compressor housing flows into the exhaust pipe through the air inlet and is discharged to the outside of the compressor housing, and the movable pipe section is rotatably or swingably arranged so that the direction of the air inlet changes when the movable pipe section moves. The present invention solves the problem of excessively high circulation rate of compressor oil in the prior art.

Description

Technical Field

[0001] The present invention relates to the field of compressors, and in particular to a compressor exhaust device and a compressor. Background Art

[0002] At present, the operating frequency of scroll compressors is constantly increasing. When the scroll compressor is operating under high-frequency conditions, in order to ensure the lubrication and sealing of the moving and static disks during movement, more pumps are required to supply more oil to achieve the above-mentioned effect. However, the oil supply of the current oil pump oil supply method will increase with the increase of the operating frequency. The increase in oil supply will inevitably cause a lot of lubricating oil in the compressor cavity to be compressed together with the refrigerant. Then the oil and gas fluid flows inside the cavity, and the unseparated lubricating oil will be discharged from the exhaust pipe along with the refrigerant gas, thereby increasing the oil circulation rate of the compressor and affecting the overall performance of the compressor. In addition, if too much oil is discharged from the compressor cavity, the amount of oil flowing back to the oil pool at the bottom of the compressor will be reduced, which will cause the compressor to be short of oil and affect the reliability of the scroll compressor.

[0003] The exhaust pipe of a traditional compressor is perpendicular to the shell wall. After leaving the compression chamber, the oil and gas fluid rotates along the inner wall of the compressor shell. During the rotation process, the oil fluid that has not been separated in time in the oil and gas fluid will be discharged along with the refrigerant when flowing through the exhaust pipe port. At this time, further oil and gas separation cannot be carried out, resulting in the oil content of the refrigerant gas being unable to continue to decrease. Summary of the invention

[0004] The main purpose of the present invention is to provide a compressor exhaust device and a compressor to solve the problem of excessively high compressor oil circulation rate in the prior art.

[0005] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, a compressor exhaust device is provided, including an exhaust pipe, the exhaust pipe is passed through the compressor housing, and the exhaust pipe has a movable pipe section that is movably arranged, at least a part of the movable pipe section is located inside the compressor housing, the movable pipe section has an air inlet for exhaust, the gas in the compressor housing flows into the exhaust pipe through the air inlet and is then discharged to the outside of the compressor housing, and the movable pipe section is rotatably or swingably arranged to change the direction of the air inlet when the movable pipe section moves.

[0006] Furthermore, the air inlet is located at the end of the exhaust pipe; and / or the movable pipe section is in a curved pipe shape.

[0007] Furthermore, the compressor exhaust device also includes a windward plate, which is arranged on the movable pipe section and has a windward surface.

[0008] Furthermore, the windward surface is set at an angle to the plane where the air inlet is located; and / or the movable pipe section has a rotation center line, and the windward plate and / or the air inlet are set away from the rotation center line; and / or the windward plate is set at the end of the exhaust pipe; and / or the windward surface is set parallel to the axis of the air inlet.

[0009] Furthermore, there are multiple windward plates, and the multiple windward plates are arranged in groups of two on both sides of the movable pipe section, and the two windward surfaces in the same group are arranged in parallel.

[0010] Furthermore, the exhaust pipe also has a fixed pipe section, the movable pipe section is movably connected to the fixed pipe section, and an end of the fixed pipe section away from the movable pipe section has an air outlet.

[0011] Furthermore, the movable pipe segment includes: a first segment and a second segment, the second segment is arranged at an angle to the first segment, and the end of the first segment away from the second segment has an air inlet, and the end of the second segment away from the first segment is rotatably connected to the fixed pipe segment.

[0012] Furthermore, the compressor exhaust device also includes a connecting assembly, and the ends of the movable pipe section and the fixed pipe section that are close to each other are connected through the connecting assembly.

[0013] Furthermore, the ends of the movable pipe section and the fixed pipe section that are close to each other both extend into the interior of the connecting assembly.

[0014] Furthermore, the connection assembly includes a connection structure having an axial through hole, and ends of the movable pipe segment and the fixed pipe segment close to each other are respectively inserted into the through hole from both ends of the through hole.

[0015] Furthermore, the connection structure has an inner cavity, which is located in the middle section of the axial through hole. The connection assembly also includes a rotating member, which is arranged in the inner cavity, and one end of the movable pipe section extending into the inner cavity is connected to the rotating member.

[0016] Furthermore, the rotating member includes a rolling bearing, the movable pipe section is connected to the inner ring of the rolling bearing, and the outer ring of the rolling bearing is fixed to the inner wall of the inner cavity.

[0017] Furthermore, the connection structure includes a first connection part and a second connection part that are arranged opposite to each other and are closely connected, at least one of the first connection part and the second connection part has an installation groove, and the installation groove forms an inner cavity; and / or the connection structure also includes a seal, which is arranged on the end surfaces of the first connection part and the second connection part that are close to each other.

[0018] Furthermore, the movable pipe section and the fixed pipe section are partially sleeve-connected and extend into the through hole.

[0019] Furthermore, the movable pipe section and the fixed pipe section are sleeved with each other and are provided with limiting rings and limiting grooves that cooperate with each other. There are multiple limiting rings and limiting grooves that are arranged one by one, and the multiple limiting rings are arranged at intervals along the extension direction of the exhaust pipe.

[0020] According to another aspect of the present invention, a compressor is provided, comprising the above-mentioned compressor exhaust device.

[0021] Furthermore, the compressor also includes a compressor housing and a main balancing block, the compressor housing has a cavity, at least a portion of the active pipe section of the compressor exhaust device extends into the cavity, and the compressor exhaust device is sealed and connected to the compressor housing, the main balancing block is arranged in the compressor housing, the main balancing block can rotate and generate airflow in the cavity, and the rotation speed of the main balancing block can increase with the increase of the operating frequency of the compressor.

[0022] By applying the technical solution of the present invention, a reduction in the compressor oil circulation rate is achieved by arranging a movable pipe section inside the compressor casing. Specifically, when the gas inside the compressor casing flows, the movably arranged movable pipe section can change the direction of the air inlet according to the direction of the air flow, thereby prolonging the time that the gas stays in the compressor casing, slowing down the efficiency of gas discharge, and further prolonging the time for oil and gas separation. In this way, the gas can be fully stirred for oil separation, so that more compressor oil can be separated from the gas, improving the oil separation efficiency, thereby avoiding a large amount of compressor oil from being discharged from the air inlet to the outside of the compressor casing along with the gas, thereby reducing the compressor oil circulation rate by controlling the discharge amount of gas that has not undergone oil and gas separation. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0024] Figure 1 A schematic structural diagram of a compressor exhaust device according to Embodiment 1 is shown;

[0025] Figure 2 A schematic structural diagram of a compressor exhaust device according to a second embodiment is shown;

[0026] Figure 3 A longitudinal cross-sectional view of a compressor of the present invention is shown;

[0027] Figure 4 Shows Figure 3 Transverse cross-section at A in the middle;

[0028] Figure 5 Shows Figure 3 A longitudinal cross-sectional view from another angle;

[0029] Figure 6 Shows Figure 3 The horizontal cross-section diagram of the compressor at A in the middle when it is running;

[0030] Figure 7 Shows Figure 6 Longitudinal cross-section of the compressor during operation.

[0031] The above drawings include the following reference numerals:

[0032] 10. Exhaust pipe; 11. Movable pipe section; 111. First section; 1111. Air inlet; 112. Second section; 12. Fixed pipe section; 121. Air outlet; 20. Windward plate; 21. Windward surface; 30. Connecting assembly; 31. Connecting structure; 311. First connecting part; 312. Second connecting part; 313. Sealing part; 32. Rotating part; 40. Compressor housing; 50. Main balancing block. DETAILED DESCRIPTION

[0033] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0034] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0035] In the present invention, unless otherwise specified, the directional words used, such as "up, down, top, bottom", usually refer to the directions shown in the drawings, or to the components themselves in the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "inside and outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directional words are not used to limit the present invention.

[0036] In order to solve the problem of excessively high circulation rate of compressor oil in the prior art, the present invention provides a compressor exhaust device and a compressor.

[0037] Embodiment 1

[0038] like Figure 1 , Figures 3 to 7As shown, the compressor exhaust device includes an exhaust pipe 10, which is passed through the compressor housing 40 and has a movable pipe section 11 that is movably arranged. At least a part of the movable pipe section 11 is located inside the compressor housing 40. The movable pipe section 11 has an air inlet 1111 for exhaust. The gas in the compressor housing 40 flows into the exhaust pipe 10 through the air inlet 1111 and is then discharged to the outside of the compressor housing 40. The movable pipe section 11 is rotatably or swingably arranged so that the direction of the air inlet 1111 can be changed when the movable pipe section 11 moves.

[0039] The present embodiment achieves a reduction in the compressor oil circulation rate by disposing an active pipe section 11 inside the compressor casing 40. Specifically, when the gas inside the compressor casing 40 flows, the movably disposed active pipe section 11 can change the direction of the air inlet 1111 along with the direction of the air flow, thereby prolonging the time that the gas stays in the compressor casing 40, slowing down the efficiency of gas discharge, and further prolonging the time for oil and gas separation. In this way, the gas can be fully stirred for oil separation, so that more compressor oil can be separated from the gas, improving the oil separation efficiency, thereby avoiding a large amount of compressor oil from being discharged from the air inlet 1111 to the outside of the compressor casing 40 along with the gas, thereby reducing the compressor oil circulation rate by controlling the discharge amount of gas that has not undergone oil and gas separation.

[0040] In this embodiment, the movable pipe section 11 is rotatably or swingably arranged so that the direction of the air inlet 1111 is changed when the movable pipe section 11 moves, thereby improving the oil separation efficiency by controlling the discharge volume of the gas that has not been separated from the oil and gas. Specifically, one end of the exhaust pipe 10 extends into the interior of the compressor housing 40, and the other end extends out of the compressor housing 40. The movable pipe section 11 is arranged at the end of the exhaust pipe 10 extending into the interior of the compressor housing 40. The air inlet 1111 can be arranged at the end of the movable pipe section 11 or at the side wall of the movable pipe section 11. In this way, when the movable pipeline rotates or swings relative to the compressor housing 40, the air inlet 1111 can change the opening direction accordingly, thereby extending the time for the gas inside the compressor housing 40 to be discharged from the exhaust pipe 10, thereby improving the oil separation efficiency and increasing the amount of oil return from the trimming. In this embodiment, the movable pipe section 11 is arranged in a rotatable manner, thereby increasing the range of movement of the movable pipe section 11 and improving the flexibility of the movement of the movable pipe section 11.

[0041] In this embodiment, the air inlet 1111 is located at the end of the exhaust pipe 10, the gas enters the exhaust pipe 10 from the air inlet 1111, and is discharged from the compressor housing 40 along the extension direction of the exhaust pipe 10; moreover, in this embodiment, the movable pipe section 11 is in the shape of a curved pipe, so that the air inlet 1111 can be set on a section of the curved pipe away from the rotation center. When the movable pipe section 11 rotates or swings, the air inlet 1111 can change the opening direction, thereby extending the time that the gas stays inside the compressor housing 40.

[0042] like Figure 1 As shown, in this embodiment, the compressor exhaust device also includes a windward plate 20, which is arranged on the movable pipe section 11, and the windward plate 20 has a windward surface 21. Specifically, the windward plate 20 is arranged on the peripheral side of the movable pipe section 11, and the windward plate 20 is arranged in a plate shape along the extension direction of the movable pipe section 11, and the windward surface 21 is the side of the windward plate 20 away from the movable pipe section 11. In this way, when the gas flow inside the compressor housing 40 generates airflow, the airflow hits the windward surface 21 to generate impact force, so that the windward plate 20 drives the movable pipe section 11 to rotate, so that the direction of the air inlet 1111 gradually becomes parallel to the airflow direction, thereby reducing the discharge of gas that is not separated from oil and gas. In this embodiment, the windward plate 20 is set to a rectangular plate shape. Of course, it can also be set to other polygonal plates, or it can also be set to an irregular plate shape, so that the windward plate 20 can be hit by the airflow inside the compressor housing 40 and drive the movement of the movable pipe section 11.

[0043] like Figure 6 , Figure 7 As shown, in this embodiment, the gas is formed by the rotation of the main balance block 50 to form an airflow rotating along the wall of the compressor housing 40. Considering that the windward surface 21 is parallel to the plane where the air inlet 1111 is located, that is, the windward surface 21 is perpendicular to the direction of the air inlet 1111, the airflow moves along the plane where the air inlet 1111 is located, which will cause the windward surface 21 to be unable to drive the active pipe section 11 to rotate and change the direction of the air inlet 1111 through the impact of the airflow, thereby causing the active pipe section 11 to fail, making the exhaust pipe 10 equivalent to the traditional static exhaust pipe 10, resulting in the gas still being able to be quickly discharged from the compressor housing 40 through centrifugal force. Therefore, the windward surface 21 is set at an angle with the plane where the air inlet 1111 is located to ensure that the windward surface 21 can always be impacted by the airflow to adjust the direction of the air inlet 1111, thereby keeping the direction of the air inlet 1111 parallel to the airflow direction. Preferably, in this embodiment, the windward surface 21 is set parallel to the axis of the air inlet 1111 to ensure the maximum effective area of ​​the windward surface 21. The movable pipe segment 11 has a rotation center line, and the windward plate 20 and / or the air inlet 1111 are set away from the rotation center line to ensure that the force applied to the windward plate 20 is effective. The force applied to the windward plate 20 can drive the movable pipe segment 11 to rotate, and the rotation of the movable pipe segment 11 can drive the displacement of the air inlet 1111. In the present embodiment, the windward plate 20 is arranged at the end of the exhaust pipe 10, and the windward plate 20 and the air inlet 1111 are arranged adjacent to each other, and both are set away from the rotation center line, and the air inlet 1111 is facing in a direction away from the rotation center line. Considering that when the windward surface 21 is arranged perpendicular to the rotation center line, the windward surface 21 basically cannot be subjected to the force along the circumferential direction of the rotation center line, and thus cannot drive the movable pipe segment 11 to rotate, the windward surface 21 is arranged in a direction that is not perpendicular to the rotation center line.

[0044] like Figure 1 As shown, in this embodiment, in order to ensure that the windward plate 20 can be subjected to sufficient force to drive the movable pipe section 11 to rotate, the windward plate 20 is provided in plurality, and the plurality of windward plates 20 are relatively arranged in groups of two on both sides of the movable pipe section 11, and the two windward surfaces 21 in the same group are arranged in parallel to ensure that the impact force of the airflow received by the two windward surfaces 21 will not conflict, thereby avoiding the mutual cancellation of the impact force. In this embodiment, one group of windward plates 20 is provided, that is, two, and the two windward surfaces 21 are arranged on the side away from each other of the two windward plates 20, thereby ensuring the effectiveness of the windward plates 20. Of course, according to actual needs, the windward plates 20 can also be provided in multiple groups, thereby increasing the area of ​​the windward surfaces 21 to ensure the rotation of the movable pipe section 11, and the windward plates 20 can be arranged along the extension direction of the movable pipe section 11 to ensure that they are parallel in pairs.

[0045] In this embodiment, the exhaust pipe 10 also has a fixed pipe section 12, and the movable pipe section 11 is movably connected to the fixed pipe section 12, and the fixed pipe section 12 has an outlet 121 at one end away from the movable pipe section 11. Specifically, as an end for discharging the gas in the exhaust pipe 10 to the outside of the compressor housing 40, the fixed pipe section 12 is connected to the movable pipe section 11 and is away from the air inlet 1111, so that the gas is discharged from the inside of the compressor housing 40 to the outside of the compressor housing 40, while ensuring the convenience of connection with other components. It should be noted that the connection between the movable pipe section 11 and the fixed pipe section 12 can be set inside the compressor housing 40, or it can be set inside the compressor housing 40. Of course, the fixed pipe section 12 may not be set, and the end of the movable pipe section 11 away from the air inlet 1111 passes through the outside of the compressor housing 40, and the gas is directly discharged from the end of the movable pipe section 11 away from the air inlet 1111, and the end of the movable pipe section 11 away from the air inlet 1111 is directly connected to other components, ensuring the reliable connection between the movable pipe section 11 and other components.

[0046] like Figure 3 , Figure 4 As shown, in this embodiment, the movable pipe section 11 passes through the circumferential side wall of the compressor housing 40, and the movable pipe section 11 connects the inside and the outside of the compressor housing 40. Figure 1As shown, the movable pipe segment 11 includes: a first segment 111 and a second segment 112, the second segment 112 is arranged at an angle with the first segment 111, and the end of the first segment 111 away from the second segment 112 has an air inlet 1111, and the end of the second segment 112 away from the first segment 111 is rotatably connected to the fixed pipe segment 12, so that the center of the second segment 112 serves as the rotation center line. When the movable pipe segment 11 rotates, it can change the direction of the first segment 111, thereby changing the orientation of the air inlet 1111 to ensure that the air inlet 1111 is parallel to the airflow direction. In this embodiment, the first section 111 and the second section 112 are both configured as a straight tube, and the first section 111 and the second section 112 are vertically configured. In this way, when the movable tube section 11 rotates, the axis of the second section 112 is also the rotation center line of the movable tube section 11, so that the second section 112 rotates, and the first section 111 can rotate along the circumference of the second section 112, so that the air inlet 1111 can rotate to different directions of the circumference of the second section 112 with the airflow, and a rounded corner is set at the boundary between the first section 111 and the second section 112 to reduce the resistance of the gas in the exhaust pipe, thereby ensuring smooth exhaust of the gas.

[0047] like Figure 5 As shown, in this embodiment, the compressor exhaust device also includes a connecting assembly 30, and the ends of the movable pipe segment 11 and the fixed pipe segment 12 that are close to each other are connected through the connecting assembly 30. In this way, the movable pipe segment 11 and the fixed pipe segment 12 are connected through the setting of the connecting assembly 30, and the air inlet 1111 and the air outlet 121 are set at both ends of the exhaust pipe 10. On the one hand, the change requirement of the direction of the air inlet 1111 is met, and the residence time of the gas inside the compressor housing 40 is extended. On the other hand, the air outlet 121 is fixed, which is convenient for connection with other components. Optionally, the movable pipe segment 11 and the fixed pipe segment 12 can be inserted into the interior of the connecting assembly 30, or the connecting assembly 30 can be sleeved on the peripheral side of the movable pipe segment 11 and the fixed pipe segment 12, so that the movable pipe segment 11 and the fixed pipe segment 12 can be reliably connected.

[0048] In this embodiment, the ends of the movable pipe segment 11 and the fixed pipe segment 12 that are close to each other both extend into the interior of the connecting component 30, that is, the end of the movable pipe segment 11 away from the air inlet 1111 extends into the interior of the connecting component 30, and the end of the fixed pipe segment 12 away from the air outlet 121 extends into the interior of the connecting component 30, so that the two ends are reliably connected.

[0049] In this embodiment, the connecting assembly 30 includes a connecting structure 31, which has an axial through hole. The ends of the movable pipe segment 11 and the fixed pipe segment 12 that are close to each other are inserted into the through hole from both ends of the through hole, respectively. In this way, the movable pipe segment 11 and the fixed pipe segment 12 are coaxially arranged to ensure the maximum flow area of ​​the exhaust pipe 10.

[0050] In this embodiment, the connecting structure 31 has an inner cavity, which is located in the middle section of the axial through hole. The connecting assembly 30 also includes a rotating member 32, which is arranged in the inner cavity, and one end of the movable pipe segment 11 extending into the inner cavity is connected to the rotating member 32. In this way, the outer side of the rotating member 32 is connected to the side wall of the inner cavity, and the inner side of the rotating member 32 is connected to the movable pipe segment 11, and the inner side of the rotating member 32 rotates synchronously with the movable pipe segment 11. The connecting structure 31 and the fixed pipe segment 12 are relatively stationary. Through the setting of the rotating member 32, the relative movement between the movable pipe segment 11 and the fixed pipe segment 12 is realized, so that the movable pipe segment 11 and the fixed pipe segment 12 are coaxially connected and do not interfere with each other.

[0051] In this embodiment, the rotating member 32 includes a rolling bearing, the movable pipe segment 11 is connected to the inner ring of the rolling bearing, and the outer ring of the rolling bearing is fixed to the inner wall of the inner cavity, so as to realize the relative movement of the movable pipe segment 11 and the fixed pipe segment 12, so as to realize the rotation of the movable pipe segment 11. Specifically, in this embodiment, the movable pipe segment 11 is inserted into the inner ring, and the movable pipe segment 11 and the inner ring can be fixed by welding or the like, and the fixed pipe segment 12 is inserted into the inner ring from the other side of the inner ring, and the fixed pipe segment 12 can be fixed to the connecting structure 31 by welding or the like, so that the movable pipe segment 11 drives the inner ring of the rolling bearing to rotate, while the fixed pipe segment 12 and the connecting structure 31 are not affected by it and can remain motionless. Of course, the connection between the movable pipe segment 11 and the fixed pipe segment 12 and the rolling bearing can also be adopted in other ways, as long as the free rotation of the movable pipe segment 11 is satisfied.

[0052] In this embodiment, the connection structure 31 includes a first connection part 311 and a second connection part 312 which are arranged opposite to each other and are closely connected. At least one of the first connection part 311 and the second connection part 312 has a mounting groove, and the mounting groove forms an inner cavity, so as to ensure that the rotating member 32 can be arranged inside the connection structure 31, and the exhaust pipe 10 is arranged inside the rotating member 32, so as to ensure the reliable connection between the movable pipe section 11 and the fixed pipe section 12. Specifically, in this embodiment, the first connection part 311 and the second connection part 312 are both arranged as circular flanges, and a plurality of bolt holes are arranged around the circular flanges, so that the first connection part 311 and the second connection part 312 are connected by bolts and nuts; the first connection part 311 and the second connection part 312 are both arranged with mounting grooves to accommodate the rotating member 32, and the movable pipe section 11 is inserted into the through hole from the side of the first connection part 311 away from the second connection part 312 to enter the center of the rotating member 32, and the fixed pipe section 12 is inserted into the through hole from the side of the second connection part 312 away from the first connection part 311 to enter the center of the rotating member 32 and dock with the movable pipe section 11. The connection structure 31 further includes a seal 313, which is arranged on the end faces of the first connection part 311 and the second connection part 312 close to each other to seal the first connection part 311 and the second connection part 312 to prevent air leakage. In order to facilitate the installation of the seal 313, a sealing groove can be provided in the first connection part 311 or the second connection part 312, and the seal 313 is placed in the sealing groove. When the first connection part 311 and the second connection part 312 are butt-jointed, the seal 313 is squeezed to achieve sealing. Optionally, the seal 313 can be a sealing ring, a sealing pad, etc.

[0053] In this embodiment, the rotation process of the compressor exhaust device is as follows: Figure 3 , Figure 4 , Figure 5 As shown, when the compressor does not start running, the air inlet 1111 opens downward and is perpendicular to the bottom of the compressor; Figure 6 , Figure 7 As shown, when the compressor starts to run, the gas that has not been separated from the oil and gas enters the cavity, and the rotation of the main balance block 50 will generate a rotating airflow on the wall of the cavity. The direction of the airflow is initially perpendicular to the windward plate 20. With the impact of the airflow, the windward plate 20 is hit by the impact force generated by the impact of the airflow, which drives the rotation of the movable pipe section 11 and gradually becomes parallel to the airflow direction, so as to achieve the purpose of reducing the discharge of the gas that has not been separated from the oil and gas.

[0054] like Figures 3 to 7 As shown, this embodiment also provides a compressor, including the above-mentioned compressor exhaust device, so that the compressor exhaust device rotates the movable pipe section 11 so that the direction of the air inlet 1111 remains parallel to the direction of the airflow, thereby reducing the discharge of unseparated oil and gas mixed gas, thereby improving the oil separation effect, reducing the compressor oil circulation rate, and thus achieving improved compressor performance.

[0055] In this embodiment, the compressor also includes a compressor housing 40 and a main balancing block 50. The compressor housing 40 has a cavity. At least a portion of the active pipe section 11 of the compressor exhaust device extends into the cavity, and the compressor exhaust device is sealedly connected to the compressor housing 40 to ensure effective exhaust of the exhaust device and avoid leakage of gas that has not undergone oil and gas separation. The main balancing block 50 is arranged in the compressor housing 40. The main balancing block 50 can rotate and generate airflow in the cavity, and the rotation speed of the main balancing block 50 can increase with the increase of the operating frequency of the compressor. Specifically, when the compressor is running, the frequency of the compressor will change due to different usage conditions. When the compressor frequency is different, the rotation speed of the main balancing block 50 will increase with the increase of the frequency, and the speed of the airflow generated by it around the wall of the compressor housing 40 will increase with the increase of the frequency, so that the impact of the airflow on the windward plate 20 increases accordingly, thereby realizing the increase in the rotation angle of the movable pipeline driven by the windward plate 20, so that the compressor can autonomously obtain a suitable rotation angle of the exhaust pipe 10 at low frequency and high frequency. In this way, when the airflow speed is different, the air inlet 1111 can rotate accordingly to a direction parallel to the airflow direction to maintain the optimal exhaust angle, thereby reducing the discharge of un-oil-gas separated gas under different frequency conditions, so as to achieve a more thorough oil-gas separation, thereby improving the overall performance of the compressor.

[0056] Embodiment 2

[0057] The difference between this embodiment and the first embodiment is that the connection mode of the movable pipe section 11 and the fixed pipe section 12 is realized at the connection mode of the movable pipe section 11 to freely rotate. Figure 1 The rotating member 32 is arranged as shown in the embodiment. Figure 2 The method of setting the limit ring and the limit groove is as follows:

[0058] like Figure 2 As shown, the movable pipe segment 11 and the fixed pipe segment 12 may not be arranged in the form of docking, but may be arranged in the form of sleeve connection. The parts of the movable pipe segment 11 and the fixed pipe segment 12 extending into the through hole are sleeve-connected. Specifically, the diameters of the movable pipe segment 11 and the fixed pipe segment 12 are arranged to be different, so that the end of one of them can be sleeved into the end of the other, thereby realizing coaxial connection and relative rotation of the movable pipe segment 11 and the fixed pipe segment 12.

[0059] In this embodiment, the movable pipe section 11 and the fixed pipe section 12 are sleeved with each other, and the limiting rings and limiting grooves are multiple and arranged one by one, and the multiple limiting rings are arranged at intervals along the extension direction of the exhaust pipe 10 to ensure the reliable connection between the movable pipe section 11 and the fixed pipe section 12, to prevent the movable pipe section 11 and the fixed pipe section 12 from being disengaged, and to ensure that the rotation of the movable pipe section 11 does not affect the fixed pipe section 12. In this embodiment, the outer diameter of the fixed pipe section 12 is set to be no larger than the inner diameter of the movable pipe section 11, and the limiting groove is arranged on the inner diameter circumference of the movable pipe section 11, and the limiting ring is arranged on the outer diameter circumference of the fixed pipe section 12. When the movable pipe section 11 and the fixed pipe section 12 are connected, the limiting ring is arranged in the limiting groove, and the fixed pipe section 12 is welded and fixed to the connection structure 31 to prevent the fixed pipe section 12 from being affected by the movable pipe section 11 and rotating. Of course, the limiting ring can also be set on the side of the movable pipe segment 11, and correspondingly, the limiting groove is set on the side of the fixed pipe segment 12, which can also achieve the purpose of connecting the movable pipe segment 11 and the fixed pipe segment 12.

[0060] It should be noted that, the multiple in the above embodiments refers to at least two.

[0061] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0062] 1. Solve the problem of excessively high compressor oil circulation rate in the prior art;

[0063] 2. The oil circulation rate of the compressor is reduced by setting a movable pipe section inside the compressor housing. The movable pipe section can change the direction of the air inlet according to the direction of the air flow, thereby prolonging the time the gas stays in the compressor housing, slowing down the efficiency of gas discharge, and thus prolonging the time for oil and gas separation;

[0064] 3. The gas can be fully stirred for oil separation, so that more compressor oil can be separated from the gas, improving the oil separation efficiency, thereby avoiding a large amount of compressor oil from being discharged from the air inlet to the outside of the compressor housing along with the gas, thereby reducing the circulation rate of the compressor oil by controlling the discharge amount of gas that has not been separated from oil and gas.

[0065] Obviously, the above-described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0066] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0067] 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 numbers used in this way can be interchanged 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.

[0068] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A compressor exhaust device, characterized in that: The invention comprises an exhaust pipe (10), wherein the exhaust pipe (10) is arranged on a compressor housing (40), and the exhaust pipe (10) has a movable pipe section (11) which is movably arranged, at least a part of the movable pipe section (11) is located inside the compressor housing (40), and the movable pipe section (11) has an air inlet (1111) for exhausting gas, and gas in the compressor housing (40) flows into the exhaust pipe (10) through the air inlet (1111) and is then discharged to the outside of the compressor housing (40), and the movable pipe section (11) is arranged to be rotatable or swingable, so that the direction of the air inlet (1111) is changed when the movable pipe section (11) moves, thereby prolonging the time that the gas stays in the compressor housing (40) and prolonging the time for oil-gas separation, and the compressor exhaust device also comprises a windward plate (20), wherein the windward plate (20) is arranged on the movable pipe section (11), and the windward plate (20) has a windward surface (21).

2. The compressor exhaust device according to claim 1, characterized in that: The air inlet (1111) is located at the end of the exhaust pipe (10); and / or The movable pipe section (11) is in the shape of a curved pipe.

3. The compressor exhaust device according to claim 1, characterized in that: The windward surface (21) is arranged at an angle to the plane where the air inlet (1111) is located; and / or The movable pipe section (11) has a rotation centerline, and the windward plate (20) and / or the air inlet (1111) are arranged offset from the rotation centerline; and / or The windward plate (20) is arranged at the end of the exhaust pipe (10); and / or The windward surface (21) is arranged parallel to the axis of the air inlet (1111).

4. The compressor exhaust device according to claim 1, characterized in that: There are a plurality of windward plates (20), and the plurality of windward plates (20) are arranged in groups of two on both sides of the movable pipe section (11) relative to each other, and the two windward surfaces (21) in the same group are arranged in parallel.

5. The compressor exhaust device according to claim 1, characterized in that: The exhaust pipe (10) further comprises a fixed pipe section (12), the movable pipe section (11) being movably connected to the fixed pipe section (12), and an end of the fixed pipe section (12) away from the movable pipe section (11) comprises an air outlet (121).

6. The compressor exhaust device according to claim 5, characterized in that: The movable pipe section (11) comprises: Section 1 (111); A second segment (112), the second segment (112) and the first segment (111) are arranged at an angle, and an end of the first segment (111) away from the second segment (112) has the air inlet (1111), and an end of the second segment (112) away from the first segment (111) is rotatably connected to the fixed pipe segment (12).

7. The compressor exhaust device according to claim 5, characterized in that: The compressor exhaust device further comprises a connecting assembly (30), and ends of the movable pipe section (11) and the fixed pipe section (12) close to each other are connected via the connecting assembly (30).

8. The compressor exhaust device according to claim 7, characterized in that: The ends of the movable pipe section (11) and the fixed pipe section (12) that are close to each other both extend into the interior of the connecting assembly (30).

9. The compressor exhaust device according to claim 8, characterized in that: The connection assembly (30) comprises a connection structure (31), wherein the connection structure (31) has an axial through hole, and ends of the movable pipe section (11) and the fixed pipe section (12) close to each other are respectively inserted into the axial through hole from both ends of the axial through hole.

10. The compressor exhaust device according to claim 9, characterized in that: The connection structure (31) has an inner cavity, the inner cavity is located in the middle section of the axial through hole, and the connection assembly (30) further comprises: A rotating member (32), the rotating member (32) being arranged in the inner cavity, and one end of the movable tube section (11) extending into the inner cavity being connected to the rotating member (32).

11. The compressor exhaust device according to claim 10, characterized in that: The rotating member (32) comprises a rolling bearing, the movable pipe section (11) is connected to the inner ring of the rolling bearing, and the outer ring of the rolling bearing is fixed to the inner wall of the inner cavity.

12. The compressor exhaust device according to claim 10, characterized in that: The connection structure (31) comprises a first connection portion (311) and a second connection portion (312) which are arranged opposite to each other and are closely connected. At least one of the first connecting portion (311) and the second connecting portion (312) has a mounting groove, and the mounting groove forms the inner cavity; and / or The connection structure (31) further comprises a sealing member (313), wherein the sealing member (313) is arranged on end surfaces of the first connection portion (311) and the second connection portion (312) that are close to each other.

13. The compressor exhaust device according to claim 9, characterized in that: The movable pipe section (11) and the fixed pipe section (12) are sleeve-connected in the parts extending into the axial through hole.

14. The compressor exhaust device according to claim 13, characterized in that: The movable pipe section (11) and the fixed pipe section (12) are sleeved with each other and are provided with limiting rings and limiting grooves that cooperate with each other, and the limiting rings and limiting grooves are both multiple and arranged in one-to-one correspondence, and the multiple limiting rings are arranged at intervals along the extension direction of the exhaust pipe (10).

15. A compressor, characterized in that: A compressor exhaust device comprising the compressor exhaust device according to any one of claims 1 to 14.

16. The compressor according to claim 15, characterized in that The compressor also includes: A compressor housing (40), the compressor housing (40) having a cavity, at least a portion of the movable pipe section (11) of the compressor exhaust device extending into the cavity, and the compressor exhaust device being sealedly connected to the compressor housing (40); A main balancing block (50) is arranged in the compressor housing (40), the main balancing block (50) is capable of rotating and generating airflow in the cavity, and the rotation speed of the main balancing block (50) is capable of increasing as the operating frequency of the compressor increases.

Images