Compressor and gas turbine

Abstract

The application discloses a compressor, which comprises a cylinder, a moving blade, a variable-diameter ring and an adjusting assembly. An inner wall surface of the cylinder is provided with an annular groove. The moving blade is rotatably arranged in the cylinder. The variable-diameter ring is arranged in the annular groove. The variable-diameter ring comprises a plurality of adjusting members and an elastic sealing member. The adjusting members are arranged at intervals along the circumference of the cylinder. One end of the elastic sealing member is connected with one of the two adjacent adjusting members, and the other end of the elastic sealing member is connected with the other of the two adjacent adjusting members. The variable-diameter ring is arranged opposite to the blade tip of the moving blade and has a gap. The adjusting assembly is used for adjusting the position of the adjusting members in the radial direction of the cylinder, so as to change the gap size between the variable-diameter ring and the blade tip of the moving blade. The application guarantees the wear compensation during the operation of the compressor, avoids the defect that the traditional abradable coating cannot be recovered, and improves the overall efficiency and reliability of the gas turbine.

Description

Technical Field

[0001] This invention relates to the field of gas turbine technology, and more specifically to a compressor and a gas turbine. Background Technology

[0002] During gas turbine operation, to ensure unit efficiency and prevent the compressor blade tips from rubbing against the cylinder wall, a wear-resistant coating is typically applied to the inner wall of the compressor cylinder. However, this coating cannot be restored to its original state after wear. Once the gas turbine vibration stabilizes, the gap between the compressor blade tips and the cylinder wall increases, leading to a decrease in gas turbine efficiency. Summary of the Invention

[0003] The present invention aims to at least partially solve one of the technical problems in the related art.

[0004] Therefore, embodiments of the present invention provide a compressor and a gas turbine.

[0005] The compressor of this invention includes a cylinder, a moving blade, a variable diameter ring, and an adjusting assembly. The inner wall of the cylinder has an annular groove. The moving blade is rotatably disposed within the cylinder. The variable diameter ring is disposed within the annular groove and includes multiple adjusting members and an elastic seal. The multiple adjusting members are arranged circumferentially around the cylinder. One end of the elastic seal is connected to one of two adjacent adjusting members, and the other end of the elastic seal is connected to the other of the two adjacent adjusting members. The variable diameter ring is arranged opposite to the tip of the moving blade and has a gap. The adjusting assembly is disposed in the cylinder and connected to the adjusting members. The adjusting assembly is used to adjust the radial position of the adjusting members in the cylinder to change the gap between the variable diameter ring and the tip of the moving blade.

[0006] In some embodiments, the adjusting member has a first side and a second side opposite to each other in the axial direction of the cylinder, at least one of the first side and the second side is provided with a limiting groove, the groove sidewall of the annular groove is provided with a limiting protrusion, the limiting protrusion is fitted in the limiting groove, wherein the width dimension of the limiting protrusion in the radial direction of the cylinder is smaller than the width dimension of the limiting groove in the radial direction of the cylinder.

[0007] In some embodiments, the adjusting member has a top surface and a bottom surface that are radially opposite to the cylinder, the bottom surface being opposite to the tip of the moving blade, and the top surface having a through hole communicating with the limiting groove;

[0008] The adjustment assembly includes a first adjustment pin and a second adjustment pin. The first end of the first adjustment pin is adjustablely engaged with the first end of the through hole, and the second end of the first adjustment pin abuts against the bottom wall of the annular groove. The first end of the second adjustment pin is adjustablely engaged with the second end of the through hole, and the second end of the second adjustment pin abuts against the limiting protrusion.

[0009] In some embodiments, the adjusting assembly includes a guide frame, a motor, a lead screw, and a lead screw nut. The side wall of the cylinder has a through hole communicating with the annular groove. The guide frame is disposed on the outer wall surface of the cylinder. The motor is slidably disposed on the guide frame along the radial direction of the cylinder. The lead screw nut is disposed on the cylinder. The lead screw and the lead screw nut are threadedly engaged. The side wall of the cylinder has a through hole communicating with the annular groove. The first end of the lead screw is connected to the output shaft of the motor. The second end of the lead screw extends into the annular groove through the through hole and is rotatably connected to the adjusting member.

[0010] In some embodiments, the adjusting assembly further includes a linear bearing disposed in the cylinder, and the lead screw is connected to the linear bearing in cooperation.

[0011] In some embodiments, the adjustment assembly further includes a distance sensor, a controller, and a computer. The distance sensor is disposed on the adjustment member for detecting the gap size between the variable diameter ring and the blade tip of the moving blade. The controller is signal-connected to the motor and the distance sensor. The controller is configured to control the motor to adjust the position of the adjustment member according to the detection value of the distance sensor, so that the gap size between the variable diameter ring and the blade tip of the moving blade reaches a preset value. The controller is connected to the computer.

[0012] In some embodiments, one of the motor and the guide frame is provided with a sliding portion, and the other of the motor and the guide frame is provided with a sliding groove, wherein the sliding portion is slidably fitted into the sliding groove along the radial direction of the cylinder.

[0013] In some embodiments, the outer peripheral profile of the projection of the adjusting member is generally fan-shaped in a projection plane orthogonal to the axial direction of the cylinder.

[0014] In some embodiments, the adjustment components are at least two sets and are arranged at axial intervals along the cylinder.

[0015] The gas turbine of this invention includes the compressor described in any of the above embodiments.

[0016] In this embodiment of the compressor, during operation, an annular groove is provided on the inner wall of the cylinder, and a variable diameter ring is installed therein. The variable diameter ring is composed of multiple adjusting members and elastic seals. The adjusting members are evenly distributed along the circumference of the cylinder, while the elastic seals connect adjacent adjusting members to ensure elastic fit and prevent airflow leakage. The moving blade is rotatably mounted inside the cylinder, maintaining a certain gap with the variable diameter ring.

[0017] When the compressor operates and the clearance increases due to wear, the adjustment component can adjust the radial position of the adjusting element in the cylinder, thereby adjusting the clearance between the variable diameter ring and the blade tip to maintain optimal operating conditions. This design ensures wear compensation during compressor operation while avoiding the drawbacks of traditional wear-resistant coatings that cannot be restored, thus improving the overall efficiency and reliability of the gas turbine. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the compressor structure according to an embodiment of the present invention.

[0019] Figure 2 This is a schematic diagram of the structure of a compressor according to another embodiment of the present invention.

[0020] Figure 3 This is a schematic diagram of the structure of the adjustment component according to an embodiment of the present invention.

[0021] Figure 4 This is a schematic diagram of the compressor structure according to another embodiment of the present invention.

[0022] Figure 5 This is a schematic diagram of the installation of the adjustment component on the adjustment member according to another embodiment of the present invention.

[0023] 1. Cylinder; 101. Annular groove; 102. Limiting protrusion; 103. Perforation; 2. Moving blade; 3. Adjusting component; 301. First side surface; 302. Second side surface; 303. Limiting groove; 304. Top surface; 305. Bottom surface; 306. Through hole; 4. First adjusting pin; 5. Second adjusting pin; 6. Guide frame; 7. Motor; 8. Lead screw; 9. Lead screw nut; 10. Linear bearing; 11. Distance sensor; 12. Controller; 13. Computer. Detailed Implementation

[0024] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. 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.

[0025] like Figures 1 to 5As shown, the compressor of this embodiment includes a cylinder 1, a moving blade 2, a variable diameter ring, and an adjusting assembly. The inner wall of the cylinder 1 has an annular groove 101, and the moving blade 2 is rotatably disposed within the cylinder 1; the variable diameter ring is disposed within the annular groove 101. The variable diameter ring includes multiple adjusting members 3 and an elastic seal. The multiple adjusting members 3 are arranged at intervals along the circumference of the cylinder 1. One end of the elastic seal is connected to one of two adjacent adjusting members 3, and the other end of the elastic seal is connected to the other of the two adjacent adjusting members 3. The variable diameter ring and the blade tip of the moving blade 2 are arranged opposite each other and have a gap. The adjusting assembly is disposed in the cylinder 1 and connected to the adjusting members 3. The adjusting assembly is used to adjust the radial position of the adjusting members 3 in the cylinder 1 to change the size of the gap between the variable diameter ring and the blade tip of the moving blade 2.

[0026] In this embodiment of the compressor, during operation, an annular groove 101 is provided on the inner wall of the cylinder 1, and a variable diameter ring is installed therein. The variable diameter ring is composed of multiple adjusting members 3 and elastic seals. The adjusting members 3 are evenly distributed around the circumference of the cylinder 1, while the elastic seals connect adjacent adjusting members 3 to ensure elastic fit and prevent airflow leakage. The moving blade 2 is rotatably installed inside the cylinder 1, maintaining a certain gap with the variable diameter ring.

[0027] When the compressor operates and the clearance increases due to wear, the adjusting component can adjust the radial position of the adjusting element 3 in the cylinder 1, thereby adjusting the clearance between the variable diameter ring and the tip of the moving blade 2 to maintain optimal operating conditions. This design not only ensures wear compensation during compressor operation but also avoids the drawback of traditional wear-resistant coatings being unable to recover, thus improving the overall efficiency and reliability of the gas turbine.

[0028] In some embodiments, the adjusting member 3 has a first side 301 and a second side 302 that are axially opposite to each other in the cylinder 1. At least one of the first side 301 and the second side 302 is provided with a limiting groove 303. The groove sidewall of the annular groove 101 is provided with a limiting protrusion 102. The limiting protrusion 102 is fitted in the limiting groove 303. The width of the limiting protrusion 102 in the radial direction of the cylinder 1 is smaller than the width of the limiting groove 303 in the radial direction of the cylinder 1.

[0029] like Figure 1 , Figure 2 , Figure 4 and Figure 5As shown, the annular groove 101 has limiting protrusions 102 on its sidewall. These protrusions are designed to cooperate with the limiting grooves 303 on the adjusting member 3. Since the width of the limiting protrusions 102 in the radial direction of the cylinder 1 is smaller than the width of the limiting grooves 303, this is done to allow the adjusting member 3 to have a certain degree of adjustment freedom in the radial direction of the cylinder 1, so that the clearance can be adjusted by changing the position of the adjusting member 3 during compressor operation. At the same time, it can prevent over-adjustment of the position of the adjusting member 3 in the radial direction of the cylinder 1, which helps to improve the reliability of adjustment.

[0030] In some embodiments, the adjusting member 3 has a top surface 304 and a bottom surface 305 that are radially opposite to the cylinder 1, the bottom surface 305 is opposite to the tip of the moving blade 2, and the top surface 304 is provided with a through hole 306 that communicates with the limiting groove 303.

[0031] The adjustment assembly includes a first adjustment pin 4 and a second adjustment pin 5. The first end of the first adjustment pin 4 is adjustablely fitted to the first end of the through hole 306, and the second end of the first adjustment pin 4 abuts against the bottom wall of the annular groove 101. The first end of the second adjustment pin 5 is adjustablely fitted to the second end of the through hole 306, and the second end of the second adjustment pin 5 abuts against the limiting protrusion 102.

[0032] Specifically, such as Figure 4 and Figure 5 As shown, this embodiment is applied to offline adjustment. In other words, it is mainly used when the compressor is overhauled. The variable diameter ring is disassembled, and the length of the through hole 306 exposed by the first adjusting pin 4 and the second adjusting pin 5 is adjusted by using tools. By adjusting the length of the adjusting pins exposed on the adjusting part, the position of the adjusting part 3 is positioned, thereby changing the inner diameter of the variable diameter ring, and thus adjusting the gap between the blade tip of the compressor moving blade 2 and the variable diameter ring.

[0033] In other embodiments, the adjustment assembly includes a guide frame 6, a motor 7, a lead screw 8, and a lead screw nut 9. The side wall of the cylinder 1 has a through hole 103 communicating with the annular groove 101. The guide frame 6 is disposed on the outer wall surface of the cylinder 1. The motor 7 is slidably disposed on the guide frame 6 along the radial direction of the cylinder 1. The lead screw nut 9 is disposed on the cylinder 1. The lead screw 8 and the lead screw nut 9 are threadedly engaged. The side wall of the cylinder 1 has a through hole 103 communicating with the annular groove 101. The first end of the lead screw 8 is connected to the output shaft of the motor 7. The second end of the lead screw 8 extends into the annular groove 101 through the through hole 103 and is rotatably connected to the adjustment member 3.

[0034] Specifically, such as Figures 1 to 3 As shown, this embodiment is applied to online adjustment. In other words, it is mainly used for compressors where the variable diameter ring does not need to be removed and adjustments can be made during compressor operation.

[0035] The guide frame 6 is fixed to the outer wall of the cylinder 1, providing guidance for the movement of the motor 7 and the lead screw 8, ensuring they move along the correct path. The motor 7 is slidably mounted on the guide frame 6 radially along the cylinder 1, allowing the motor 7 to move radially within the guide frame 6 to accommodate different adjustment needs. The lead screw 8 is threadedly engaged with the lead screw nut 9, forming a mechanism that converts rotational motion into linear motion. The lead screw nut 9 is fixed to the side wall of the cylinder 1 and connected to a through hole 103 communicating with the annular groove 101. The first end of the lead screw 8 is connected to the output shaft of the motor 7, and the lead screw 8 rotates accordingly when the motor 7 rotates. The second end of the lead screw 8 extends into the annular groove 101 through the through hole 103 and is rotatably connected to the adjusting member 3.

[0036] Specifically, when the motor 7 is powered on and begins to rotate, the lead screw 8 rotates through the threaded connection between the lead screw 8 and the lead screw nut 9. Since the lead screw nut 9 is fixed, the rotation of the lead screw 8 moves radially along the cylinder 1 under the action of the lead screw nut 9, thereby driving the adjusting component 3 to move radially in the cylinder 1, thus adjusting the gap between the moving blade 2 and the inner wall of the variable diameter ring.

[0037] The rotation of motor 7 precisely controls the movement of adjusting component 3, ensuring accurate gap adjustment. The use of motor 7 automates the gap adjustment process, reducing manual intervention and improving efficiency and reliability. By changing the rotation angle or number of rotations of motor 7, the gap size can be easily adjusted to adapt to different operating conditions. The guide frame 6 and the lead screw nut 9 fixed to the side wall of cylinder 1 provide stable support, ensuring the long-term stability of the adjusting assembly.

[0038] In some embodiments, the adjustment assembly further includes a linear bearing 10, which is disposed on the cylinder 1, and the lead screw 8 is connected to the linear bearing 10.

[0039] like Figure 3 As shown, when the motor 7 drives the lead screw 8 to move radially along the cylinder 1, the lead screw 8 moves relative to the linear bearing 10. The use of the linear bearing 10 improves the linear accuracy of the lead screw 8's movement and reduces errors during the clearance adjustment process. The linear bearing 10 reduces friction during movement, improving the stability and reliability of the system. Because the linear bearing 10 reduces direct contact between moving parts, it lowers the wear rate and extends the service life of the adjustment components. The use of the linear bearing 10 improves the efficiency of the lead screw 8's movement, reduces energy loss, and contributes to improving the overall system efficiency.

[0040] In some embodiments, the adjustment assembly further includes a distance sensor 11, a controller 12, and a computer 13. The distance sensor 11 is disposed on the adjustment member 3 for detecting the gap between the variable diameter ring and the tip of the moving blade 2. The controller 12 is signal-connected to the motor 7 and the distance sensor 11. The controller 12 is configured to control the motor 7 to adjust the position of the adjustment member 3 according to the detection value of the distance sensor 11, so that the gap between the variable diameter ring and the tip of the moving blade 2 reaches a preset value. The controller 12 is connected to the computer 13.

[0041] like Figure 1 and Figure 2 As shown, the distance sensor 11 is mounted on the adjusting member 3 to detect the gap between the variable diameter ring and the blade tip of the moving blade 2 in real time. Optionally, the distance sensor 11 can be a capacitive displacement sensor or an eddy current displacement sensor, which typically provides high-precision distance measurement and helps to accurately control the gap.

[0042] Specifically, during adjustment, distance sensor 11 continuously detects the actual gap between the variable diameter ring and the tip of the moving blade 2, and sends this data to controller 12. After receiving this data, controller 12 compares it with a preset gap value. If the actual gap does not match the preset value, controller 12 sends a command to motor 7 to adjust its speed or direction, thereby changing the gap through adjusting mechanisms such as lead screw 8. Controller 12 can adjust the position of adjusting component 3 as needed until the gap between the variable diameter ring and the tip of the moving blade 2 reaches the preset value. Computer system 13 can monitor the entire adjustment process, record data, and may adjust the control strategy to optimize performance.

[0043] Automatic detection and adjustment reduce manual intervention and improve the automation level of the adjustment process. Computer 13 and controller 12 ensure the accuracy of gap adjustment, avoiding errors caused by human factors. The computer system 13 can analyze data, optimize adjustment strategies, and improve the overall performance and efficiency of the gas turbine. Recorded data and historical trends help predict maintenance needs and reduce unexpected downtime.

[0044] In some embodiments, one of the motor 7 and the guide frame 6 is provided with a sliding part, and the other of the motor 7 and the guide frame 6 is provided with a sliding groove, wherein the sliding part is slidably fitted in the sliding groove along the radial direction of the cylinder 1.

[0045] For example, the sliding part is located on the motor, and the sliding groove is located on the guide frame 6. When it is necessary to adjust the gap between the compressor impeller 2 and the inner wall of the cylinder 1, the motor 7 (or the guide frame 6) moves radially along the cylinder 1 within the sliding groove via the sliding part. The design of the sliding part and the sliding groove increases the flexibility of the adjustment assembly, allowing it to adapt to different installation positions and adjustment needs. Radial movement makes the adjustment of the adjustment assembly more convenient, especially in situations where frequent gap adjustments are required. The cooperation between the sliding part and the sliding groove reduces friction, helping to extend the service life of the adjustment assembly.

[0046] In some embodiments, in the projection plane orthogonal to the axial direction of the cylinder 1, the outer peripheral surface profile of the projection of the adjusting member 3 is generally fan-shaped, so that the adjusting member 3 can cooperate with the elastic seal to form a variable diameter ring, making adjustment simple and convenient.

[0047] In some embodiments, the adjustment components are in at least two sets and are arranged axially spaced along cylinder 1. The design of multiple sets of adjustment components provides greater adjustment flexibility, allowing for precise adjustments to meet the needs of different areas. If one set of adjustment components fails, the other components can still maintain the clearance in other areas within cylinder 1 within the appropriate range, improving system reliability.

[0048] The gas turbine of this invention includes the compressor in any of the above embodiments.

[0049] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" 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 this invention and simplifying the description, and are not intended to 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 this invention.

[0050] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0051] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0052] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0053] In this invention, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0054] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A compressor, characterized in that, include: A cylinder, wherein the inner wall surface of the cylinder is provided with an annular groove; A movable blade, which is rotatably disposed within the cylinder; A variable diameter ring is disposed in the annular groove. The variable diameter ring includes multiple adjusting members and an elastic seal. The multiple adjusting members are arranged at intervals along the circumference of the cylinder. One end of the elastic seal is connected to one of the two adjacent adjusting members, and the other end of the elastic seal is connected to the other of the two adjacent adjusting members. The variable diameter ring is arranged opposite to the tip of the moving blade and has a gap. An adjustment assembly is disposed in the cylinder and connected to the adjustment member. The adjustment assembly is used to adjust the radial position of the adjustment member in the cylinder to change the gap between the variable diameter ring and the tip of the moving blade.

2. The compressor according to claim 1, characterized in that, The adjusting member has a first side and a second side opposite to each other in the axial direction of the cylinder. At least one of the first side and the second side is provided with a limiting groove. The groove sidewall of the annular groove is provided with a limiting protrusion. The limiting protrusion fits in the limiting groove. The width of the limiting protrusion in the radial direction of the cylinder is smaller than the width of the limiting groove in the radial direction of the cylinder.

3. The compressor according to claim 2, characterized in that, The adjusting member has a top surface and a bottom surface that are radially opposite to the cylinder, the bottom surface being opposite to the tip of the moving blade, and the top surface having a through hole communicating with the limiting groove. The adjustment assembly includes a first adjustment pin and a second adjustment pin. The first end of the first adjustment pin is adjustablely engaged with the first end of the through hole, and the second end of the first adjustment pin abuts against the bottom wall of the annular groove. The first end of the second adjustment pin is adjustablely engaged with the second end of the through hole, and the second end of the second adjustment pin abuts against the limiting protrusion.

4. The compressor according to claim 1, characterized in that, The adjusting assembly includes a guide frame, a motor, a lead screw, and a lead screw nut. The side wall of the cylinder has a through hole communicating with the annular groove. The guide frame is disposed on the outer wall surface of the cylinder. The motor is slidably disposed on the guide frame along the radial direction of the cylinder. The lead screw nut is disposed on the cylinder. The lead screw and the lead screw nut are threadedly engaged. The side wall of the cylinder has a through hole communicating with the annular groove. The first end of the lead screw is connected to the output shaft of the motor. The second end of the lead screw extends into the annular groove through the through hole and is rotatably connected to the adjusting component.

5. The compressor according to claim 4, characterized in that, The adjustment assembly also includes a linear bearing, which is disposed in the cylinder, and the lead screw is connected to the linear bearing.

6. The compressor according to claim 4, characterized in that, The adjustment assembly further includes a distance sensor, a controller, and a computer. The distance sensor is located on the adjustment component and is used to detect the gap between the variable diameter ring and the tip of the moving blade. The controller is connected to the motor and the distance sensor. The controller is configured to control the motor to adjust the position of the adjustment component according to the detection value of the distance sensor so that the gap between the variable diameter ring and the tip of the moving blade reaches a preset value. The controller is connected to the computer.

7. The compressor according to claim 6, characterized in that, One of the motor and the guide frame is provided with a sliding part, and the other of the motor and the guide frame is provided with a sliding groove. The sliding part is slidably fitted into the sliding groove along the radial direction of the cylinder.

8. The compressor according to any one of claims 1-7, characterized in that, In a projection plane orthogonal to the axis of the cylinder, the outer peripheral surface profile of the projection of the adjusting member is generally fan-shaped.

9. The compressor according to any one of claims 1-7, characterized in that, The adjustment components are at least two sets and are arranged at intervals along the axial direction of the cylinder.

10. A gas turbine, characterized in that, The compressor included in any one of claims 1-9.

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