Blade removal tool and method

Abstract

The application discloses a kind of blade removal tool and method, comprising: support module is suitable for making to be removed compressor moving blade to pass out, and with two compressor moving blades adjacent to to be removed compressor moving blade are positioned;Clamping module is slidably arranged on support module, and to to be removed compressor moving blade is clamped;Pull module is connected with clamping module, suitable for driving clamping module movement along axial slot direction.The support module of the present application supports two compressor moving blades adjacent to to be removed compressor moving blade, realizes firm positioning;When clamping module is driven to move by pull module, the movement direction of clamping module is axial slot direction, and the support effect of adjacent two sides blade is utilized, to ensure that the removal direction of slotted blade is fixed, and consistent with the installation angle of blade.The present application will not cause irreversible damage to the adjacent second stage moving blade blade and disc, and will not cause serious knock deformation damage to the removed moving blade blade.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of gas turbine component overhaul, in particular to a blade removal tool and method. BACKGROUND

[0002] The compressor blade is the core component of the compressor for the gas turbine inlet gas, which is composed of a blade body and a blade root. The blade body is the part of the blade interacting with the airflow, and the blade root is the part of the blade assembled to the rotor disc slot, generally adopting a dovetail type blade root. The compressor blade as a rotating machine is subjected to complex alternating stress during service, which is easy to initiate crack defects at the back arc surface and variable cross-section position of the inner arc surface of the dovetail type blade root, seriously affecting the safe and stable operation of the unit.

[0003] Therefore, the compressor blade root must be periodically or irregularly non-destructive tested. When the crack defect is found in the compressor first stage blade root, the troubleshooting and unit recovery can be completed by removing the old defective blade and replacing the new blade at the overhaul site. Due to the centrifugal force and corrosion during long-term service, the compressor blade root and the disc root groove are tightly clamped together, and the blade cannot be removed without damaging the blade root. Therefore, an axial groove needs to be cut on the compressor first stage blade root to relieve the locking force between the blade root and the disc groove, and the blade is removed axially to complete the disassembly of the old blade.

[0004] The existing method for removing the blade is to cut a groove after the blade is removed by manually axially knocking the blade body, which has the following disadvantages:

[0005] 1. The manual knocking method for removing the blade is easy to cause damage to the adjacent second stage blade body and the disc, resulting in irreversible damage;

[0006] 2. The manual knocking method for removing the blade has great destructive effect on the removed blade body, causing serious knocking deformation damage to the blade body, which is not conducive to the further analysis of the removed blade;

[0007] 3. Since the compressor blade and the rotor have a certain installation angle in the axial direction, the knocking direction cannot be strictly parallel to the installation angle direction by using the manual knocking method for removing the blade, which is easy to cause damage to the disc root groove, and the removal efficiency is low, consuming a lot of manpower and material resources. SUMMARY

[0008] Therefore, the present application aims to solve the technical problem of overcoming the damage to the blade and the disk caused by the existing means of disassembling the blade, thereby providing a blade disassembly tool and method to quickly and efficiently and safely disassemble the compressor blade after cutting the groove without causing damage to the adjacent blade and the disk blade root groove, and without causing serious deformation damage to the disassembled blade.

[0009] To achieve the above-mentioned object, the technical scheme adopted by the present application is:

[0010] A blade disassembly tool is applied to the disassembly of a compressor blade of a gas turbine, the blade disassembly tool comprising:

[0011] A support module is adapted to allow the compressor blade to be disassembled to pass through and be positioned with two compressor blades adjacent to the compressor blade to be disassembled;

[0012] A clamping module is slidably arranged on the support module and clamps the compressor blade to be disassembled;

[0013] A pulling module is connected to the clamping module and is adapted to drive the clamping module to move in the axial groove direction to disassemble the compressor blade to be disassembled.

[0014] Further optimization of the technical scheme, the support module comprises:

[0015] A profiling base is adapted to the shape of the compressor disk;

[0016] A positioning assembly is arranged on the profiling base and is adapted to position the profiling base on the two compressor blades located on both sides of the compressor blade to be disassembled.

[0017] Further optimization of the technical scheme, the positioning assembly comprises a first support plate and a second support plate arranged on both sides of the profiling base; the end of the first support plate and the second support plate is adapted to the shape of the compressor blade, and / or the bottom end face of the first support plate and the second support plate is adapted to the compressor disk.

[0018] Further optimization of the technical scheme, the profiling base comprises a first plate body adapted to the flow channel surface of the compressor disk and a second plate body adapted to the inlet end surface of the compressor disk, a hollow groove is sequentially arranged on the first plate body and the second plate body, and the hollow groove is consistent with the shape of the compressor blade root groove;

[0019] And / or a pair of guide plates adapted to guide the movement direction of the clamping module is arranged on the profiling base.

[0020] Further optimization of the technical scheme, the clamping module comprises:

[0021] A first clamping plate;

[0022] The second clamping plate is connected with the first clamping plate and is spliced with the first clamping plate to form a clamping groove matched with the to-be-removed compressor blade.

[0023] Further optimization technical solutions, the support module is provided with a guide groove;

[0024] The first clamping plate and the second clamping plate are provided with a stretching plate connected with the pulling module, and the stretching plate slides in the guide groove.

[0025] Further optimization technical solutions, the pulling module comprises:

[0026] The sliding rod is connected with the clamping module at one end and provided with an end head clasp at the other end;

[0027] The bracket is arranged above the sliding rod;

[0028] The sliding hammer is slidably arranged on the sliding rod and hung on the bracket, and the sliding hammer drives the end head clasp and the sliding rod to move when the end head clasp swings.

[0029] Further optimization technical solutions, further comprising:

[0030] The cooling module is suitable for refrigerating the to-be-removed compressor blade to shrink the to-be-removed compressor blade.

[0031] Further optimization technical solutions, the cooling module comprises:

[0032] The cooling medium conveying module is suitable for conveying the cooling medium;

[0033] At least one cooling pipe is arranged inside the clamping module and connected with the cooling medium conveying module; the end of the cooling pipe is provided with a nozzle, and the nozzle corresponds to the outer surface of the to-be-removed compressor blade.

[0034] A blade removal method applied to the removal of a compressor blade of a gas turbine, the method is based on the blade removal tool and comprises the following steps:

[0035] S1. The support module is passed through the to-be-removed compressor blade, and the support module is positioned between two compressor blades adjacent to the to-be-removed compressor blade;

[0036] S2. The to-be-removed compressor blade is clamped by the clamping module, and the clamping module is slidably arranged on the support module;

[0037] S3. Assemble the pulling module, connect the pulling module with the clamping module; drive the clamping module and the to-be-removed compressor blade to move along the axial groove direction by the pulling module, and remove the to-be-removed compressor blade.

[0038] The technical scheme of the present application has the following advantages:

[0039] 1. The blade removal tool provided by the present application supports two compressor moving blades adjacent to the compressor moving blade to be removed, thereby achieving firm positioning; when the pulling module drives the clamping module to move, the movement direction of the clamping module is the axial groove direction, and the support of the adjacent two side blades ensures that the removal direction of the slotted blade is fixed and consistent with the installation angle of the blade. Unlike the traditional manual knocking method for removing moving blades, the present application will not cause irreversible damage to the adjacent second-stage moving blade and the disk, nor will it cause severe knocking deformation damage to the removed moving blade.

[0040] 2. Unlike the traditional manual knocking method for removing moving blades, the blade removal tool provided by the present application can ensure that the pulling-out direction is completely consistent with the installation angle of the compressor moving blade under the guidance of the hollow groove of the profiling base and the two guide plates and the inertial force of the sliding hammer, without causing damage to the disk, saving time and effort, and greatly improving the disassembly efficiency of the compressor moving blade.

[0041] 3. The blade removal tool provided by the present application adopts the design of "profiling pull ring + pin puller", which uniformly disperses the disassembly force on the whole compressor moving blade, reducing the disassembly deformation damage. At the same time, the sliding hammer moves on the sliding rod, and when the sliding hammer moves to the position of the end head snap ring, it will collide with the end head snap ring, thereby driving the sliding rod, the clamping module and the compressor moving blade to be removed, and realizing the disassembly of the compressor moving blade to be removed under the inertial force of the sliding rod. By using the principle of lever and inertia, the disassembly force is greatly reduced, saving a lot of manpower and material resources.

[0042] 4. The blade removal tool provided by the present application adds a liquid nitrogen cooling design during the disassembly process of the compressor moving blade, uses the principle of thermal expansion and contraction to cool and shrink the blade root of the compressor moving blade to be removed, further reduces the assembly fastening force when the compressor moving blade is pulled out, makes the compressor moving blade better removed, improves the disassembly efficiency, and saves manpower and material resources. BRIEF DESCRIPTION OF DRAWINGS

[0043] In order to more clearly illustrate the specific embodiments of the present application or the technical scheme in the prior art, the following will briefly introduce the drawings needed to be used in the description of the specific embodiments or the prior art. Obviously, the drawings described below are some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without creating any inventive labor.

[0044] Figure 1 The figure is a structural schematic view of the blade removal tool provided by the present application.

[0045] Figure 2 A structure schematic view of a supporting module in a blade removal tooling provided by the present application.

[0046] Figure 3 A structure schematic view of a clamping module in a blade removal tooling provided by the present application.

[0047] Figure 4 A structure schematic view of a pulling module in a blade removal tooling provided by the present application.

[0048] Figure 5 A structure schematic view of a blade removal tooling provided by the present application in actual use.

[0049] Figure 6 A structure schematic view of a first stage blade of a gas turbine compressor.

[0050] Reference signs:

[0051] 1, supporting module, 11, first supporting plate, 12, second supporting plate, 13, profiling base, 14, hollow groove, 15, guide plate, 16, guide groove, 17, axial groove;

[0052] 2, clamping module, 21, first clamping plate, 22, second clamping plate, 23, stretching plate, 24, first fixing bolt, 25, second fixing bolt, 26, T-shaped clamping block;

[0053] 3, pulling module, 31, sliding rod, 32, sliding hammer, 33, end head clasp ring, 34, joint bolt, 35, bracket;

[0054] 4, cooling module, 41, cooling pipe, 42, nozzle;

[0055] 5, compressor blade;

[0056] 6, compressor wheel. DETAILED DESCRIPTION

[0057] The technical solutions of the present application will be described clearly and completely below in combination with the drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0058] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "longitudinal", "transverse", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0059] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0060] In addition, the technical features involved in the different embodiments of the application described below can be combined with each other as long as there is no conflict.

[0061] Embodiment 1

[0062] As Figures 1 to 6 shown, the present embodiment discloses a blade removal tool applied to gas turbine compressor blade removal, which comprises a supporting module 1, a clamping module 2 (profiled pull ring) and a pulling module 3 (pin puller).

[0063] The supporting module 1 is adapted to make the compressor blade to be removed pass through, and is positioned with two compressor blades adjacent to the compressor blade to be removed.

[0064] The clamping module 2 is slidably arranged on the supporting module 1 and clamps the compressor blade to be removed.

[0065] The pulling module 3 is connected with the clamping module 2 and is adapted to drive the clamping module 2 to move, so as to remove the compressor blade to be removed.

[0066] The blade removal tool has the advantages that the support module supports two compressor moving blades 5 adjacent to the compressor moving blade to be removed, thereby achieving firm positioning; when the clamping module 2 is driven to move by the pulling module, the moving direction of the clamping module 2 is the direction of the axial slot 17, and the support of the adjacent two side blades ensures that the removal direction of the slotted blade is fixed and consistent with the installation angle of the blade, so that the problem of damage to the disk blade root slot does not occur during the blade removal process, and the problem of accidental damage to the adjacent second-stage blade blade body and the disk caused by manual knocking of the moving blade does not occur.

[0067] As a specific embodiment, as shown in the drawings, the support module 1 comprises a profiling base 13 and a positioning assembly. The profiling base 13 is adapted to the shape of the compressor disk 6 and is arranged to be attached to the compressor disk 6. The positioning assembly is arranged on the profiling base 13 and is adapted to position the profiling base 13 on the two compressor moving blades located on both sides of the compressor moving blade to be removed. Figure 2

[0068] More specifically, the profiling base 13 comprises a first plate body attached to the flow passage surface of the compressor disk 6 and a second plate body attached to the inlet end surface of the compressor disk 6, and the first plate body and the second plate body are connected to form an L-shaped support frame. A hollow slot 14 is sequentially arranged on the first plate body and the second plate body, and the hollow slot 14 is arranged in a U-shaped slot shape. The hollow slot 14 is designed in a shape similar to the first-stage compressor disk and the blade root slot of the compressor, which can ensure that the profiling base 13 is stably and closely attached to the compressor disk, and the shape of the hollow slot is consistent with that of the blade root slot. When the profiling base 13 is attached to the blade root slot of the compressor moving blade, the compressor moving blade can pass out of the hollow slot 14, and the axial slot can be exposed, so that the profiling base 13 will not press the blade root part of the compressor moving blade, thereby reducing the removal resistance of the compressor moving blade (if the profiling base 13 presses the blade root part of the compressor moving blade, the extrusion force between the profiling base 13 and the blade root part of the compressor moving blade needs to be overcome during the removal of the compressor moving blade).

[0069] A pair of guide plates 15 is arranged on the profiling base 13, and the two guide plates 15 are connected to the two sides of the hollow slot. The guide plates 15 are adapted to guide the moving direction of the clamping module 2.

[0070] More specifically, the positioning assembly comprises a first support plate 11 and a second support plate 12 arranged on both sides of the profiling base 13, and the end portions of the first support plate 11 and the second support plate 12 are adapted to the shape of the compressor moving blade. The first support plate 11 and the second support plate 12 are designed in a profiling manner, and the bottom surface is embedded with the shape of the disk, and the two sides are embedded with the shape of the adjacent compressor moving blade blade body.

[0071] ​The first support plate 11 and the second support plate 12 are in T-shaped assembly design with the middle profiling base, that is, T-shaped grooves are respectively formed on the first support plate 11 and the second support plate 12, and T-shaped protrusions are integrally arranged on the two sides of the profiling base, the T-shaped protrusions are matched with the T-shaped grooves, and the T-shaped protrusions can be quickly disassembled and installed on site.

[0072] As a specific embodiment, the clamping module 2 is integrally embedded in the hollow groove of the middle L-shaped profiling base 13, as shown in the figure. Figure 3 As shown in the figure, the clamping module 2 comprises a first clamping plate 21 and a second clamping plate 22. The second clamping plate 22 is connected with the first clamping plate 21, the first clamping plate 21 is provided with protrusions, the second clamping plate 22 is provided with grooves, the protrusions of the first clamping plate 21 are clamped and positioned into the grooves of the second clamping plate 22, and two first threaded connection holes are formed on the two ends of the second clamping plate 22. Two second threaded connection holes are also formed on the two protrusions of the first clamping plate 21, and the first threaded connection holes of the second clamping plate 22 are connected with the second threaded connection holes of the first clamping plate 21 through fixing bolts. The fixing bolts are provided with two, which are a first fixing bolt 24 and a second fixing bolt 25. The first clamping plate 21 and the second clamping plate 22 are both profiling designed with the first-stage moving blade blade, and the two ends are fixed by the first fixing bolt and the second fixing bolt. The second clamping plate 22 is spliced with the first clamping plate 21 to form a clamping groove, and the clamping groove is matched with the to-be-removed compressor moving blade, that is, the clamping groove can pass through the to-be-removed compressor moving blade, and when the clamping module 2 is pulled, the disassembly force is evenly distributed on the entire blade.

[0073] As a specific embodiment, a guide groove 16 is formed on the support module 1. A stretching plate 23 connected with the pulling module 3 is clamped and arranged on the first clamping plate 21 and the second clamping plate 22, and the stretching plate 23 slides in the guide groove 16. The assembly of the first clamping plate 21 and the second clamping plate 22 is in double-T-shaped butt joint design, and one T-shaped clamping bracket 26 is respectively arranged on the first clamping plate 21 and the second clamping plate 22, and the two T-shaped clamping brackets are symmetrically arranged. The stretching plate 23 is in U-shaped design, two T-shaped clamping grooves are formed on the two inner side walls of the stretching plate 23, the T-shaped clamping brackets are clamped in the T-shaped clamping grooves, and the T-shaped clamping grooves are upwardly and downwardly formed. When the stretching plate 23 is horizontally pulled, the first clamping plate 21 and the second clamping plate 22 can be driven to move horizontally.

[0074] As a specific embodiment, as shown in the figure, Figure 4As shown, the pulling module 3 comprises a sliding rod 31, a bracket 35 and a sliding hammer 32. One end of the sliding rod 31 is connected with the clamping module 2 through a joint bolt 34, and the other end is provided with an end head snap ring 33. The bracket 35 is arranged above the sliding rod 31 to suspend the sliding hammer, thereby reducing the labor of manually holding the sliding hammer. The sliding hammer 32 is slidably sleeved on the sliding rod 31 and is suspended on the bracket 35 through a connecting rope. When the sliding hammer 32 swings towards the end head snap ring 33, the end head snap ring 33 and the sliding rod 31 are driven to move. In the embodiment, the sliding hammer 32 moves on the sliding rod 31. When the sliding hammer 32 moves to the position of the end head snap ring 33, the end head snap ring 33 is collided, and then the sliding rod 31, the clamping module 2 and the to-be-removed compressor moving blade are driven to move by the sliding hammer 32. The to-be-removed compressor moving blade is removed under the inertial force of the sliding rod, thereby reducing the labor intensity compared with the manual removal of the compressor moving blade.

[0075] As a further improved embodiment, handles are arranged on both sides of the sliding hammer 32, which are ergonomically designed to facilitate manual holding and connection with the bracket through the connecting rope.

[0076] As a further improved embodiment, the embodiment further comprises a cooling module 4. The cooling module 4 is adapted to cool the to-be-removed compressor moving blade to shrink the to-be-removed compressor moving blade, thereby facilitating the removal of the compressor moving blade.

[0077] The cooling module 4 comprises a cooling medium conveying module and a cooling pipe 41. The cooling medium conveying module is adapted to convey the cooling medium. The cooling medium conveying module comprises a cooling medium source and a conveying pump. The cooling medium source is liquid nitrogen or other cooling medium, which is not limited herein. The conveying pump is used to convey the cooling medium to the cooling pipe 41. The cooling pipe 41 is provided with at least one cooling pipe 41, which is sleeved in the clamping module 2 and connected with the cooling medium source of the cooling medium conveying module. The end of the cooling pipe 41 is provided with a nozzle 42, which is arranged on the inner side wall of the clamping groove. The nozzle 42 corresponds to the outer surface of the to-be-removed compressor moving blade, thereby enabling the cooling medium to be directly sprayed onto the surface of the blade to effectively cool the blade.

[0078] As a specific embodiment, one nozzle 42 is arranged on each of the left and right sides, and a filter screen is arranged in the nozzle 42 to prevent dust from entering the inside of the nozzle.

[0079] As a specific embodiment, the material of the support module is aluminum alloy, and the materials of the clamping module and the pulling module are alloy steel.

[0080] Embodiment 2

[0081] The embodiment discloses a blade removal method applied to removal of a gas turbine compressor blade, which is based on the blade removal tool of the embodiment 1 and comprises the following steps.

[0082] S10. The hollow groove of the support module 1 is passed through the first-stage compressor blade root after the cutting groove is prepared to be pulled out, and the support module 1 is positioned between two compressor blades adjacent to the compressor blade to be removed.

[0083] The specific process that the support module 1 is positioned between two compressor blades on both sides of the compressor blade to be removed is that the first support plate 11 and the second support plate 12 are installed on both sides of the profiling base, and are adjusted in front, back, left and right directions to be clamped with the adjacent blade body.

[0084] S20. The compressor blade to be removed is clamped by the clamping module 2, and the clamping module 2 is slidably arranged on the support module 1.

[0085] The first clamping plate 21 and the second clamping plate 22 of the clamping module 2 are sleeved on the first-stage compressor blade to be pulled out, and are integrally pressed into the hollow groove of the profiling base, and the first clamping plate 21 and the second clamping plate 22 are locked by the first fixing bolt 24 and the second fixing bolt 25.

[0086] S30. The stretching plate is longitudinally clamped into the T-shaped clamping bracket on the side of the first clamping plate 21 and the second clamping plate 22.

[0087] S40. The pulling module 3 is assembled and connected with the clamping module 2. The specific steps are that the sliding hammer 32 is sleeved in the sliding rod 31, the sliding rod is screwed in the screw hole of the stretching plate, and the sliding hammer is hung on the bracket.

[0088] S50. The liquid nitrogen filling pipe is connected with the cooling pipe, and liquid nitrogen is transported to the cooling pipe through the liquid nitrogen filling pipe.

[0089] S60. The clamping module 2 and the compressor blade to be removed are moved by the pulling module, and the compressor blade to be removed is removed. The specific steps are that the sliding hammer 32 is manually swung, the first-stage compressor blade is pulled out under the inertial force of the sliding rod 31 and the guidance of the hollow groove of the profiling base and the two guide plates 15.

[0090] S70. The dismounting tool is disassembled, the next compressor blade is replaced, the above steps are repeated, and all the first-stage compressor blades are pulled out one by one.

[0091] Obviously, the above embodiments are merely example for clearly illustrating but not limitation to the embodiments. Based on the above description, other different forms of changes or variations can be made by those skilled in the art. Here, all the embodiments need not and can not be enumerated. The obvious changes or variations derived from this still fall within the protection scope of the present application.

Claims

1. A blade removal tool, characterized in that, The application is applied to the removal of a gas turbine compressor blade, and the blade removal tool comprises: a support module (1) adapted to pass through a compressor blade to be removed and position two compressor blades adjacent to the compressor blade to be removed; a clamping module (2) slidingly arranged on the support module (1) and clamping the compressor blade to be removed; a pulling module (3) connected with the clamping module (2) and adapted to drive the clamping module (2) to move along the axial slot (17) to remove the compressor blade to be removed; the support module (1) comprises: a profiling base (13) matched with the shape of a compressor wheel (6); a positioning assembly arranged on the profiling base (13) and adapted to position the profiling base (13) to two compressor blades located on both sides of the compressor blade to be removed; the positioning assembly comprises first and second support plates (11, 12) arranged on both sides of the profiling base (13); the end portions of the first and second support plates (11, 12) are matched with the shape of the compressor blade, and / or the bottom end faces of the first and second support plates (11, 12) are matched with the compressor wheel (6); the profiling base (13) comprises a first plate body matched with the flow passage face of the compressor wheel (6) and a second plate body matched with the inlet end face of the compressor wheel (6); hollow slots (14) are sequentially arranged on the first and second plate bodies, and the hollow slots (14) are matched with the shape of the blade root slot of the compressor blade; and / or a pair of guide plates (15) adapted to guide the moving direction of the clamping module (2) are arranged on the profiling base (13); the clamping module (2) comprises first and second clamping plates (21, 22); the second clamping plate (22) is connected with the first clamping plate (21) and is spliced with the first clamping plate (21) to form a clamping groove matched with the compressor blade to be removed; a guide slot (16) is arranged on the support module (1); a stretching plate (23) connected with the pulling module (3) is clamped on the first and second clamping plates (21, 22), and the stretching plate (23) slides in the guide slot (16).

2. A blade removal tool according to claim 1, wherein the pulling module (3) comprises: a sliding rod (31) having one end connected with the clamping module (2) and the other end provided with an end head clasp (33); a bracket (35) arranged above the sliding rod (31); a sliding hammer (32) slidingly arranged on the sliding rod (31) and hung on the bracket (35); when the sliding hammer (32) swings towards the end head clasp (33), the end head clasp (33) and the sliding rod (31) are driven to move.

3. The blade removal tool of claim 1, wherein, Further comprising: a cooling module (4) adapted to cool the compressor blade to be removed to shrink the compressor blade to be removed.

4. A blade removal tool according to claim 3, wherein the cooling module (4) comprises: a cooling medium conveying module adapted to convey a cooling medium; At least one cooling pipe (41) is arranged inside the clamping module (2) and connected with the cooling medium conveying module; the end of the cooling pipe (41) is provided with a nozzle (42), and the nozzle (42) corresponds to the outer surface of the gas turbine compressor blade to be removed.

5. A method of removing a blade, characterized by, The method is applied to the removal of a gas turbine compressor blade, and is based on the blade removal tool according to any one of claims 1 to 4, and comprises the following steps: S1. The supporting module (1) is passed through the gas turbine compressor blade to be removed, and the supporting module (1) is positioned between two gas turbine compressor blades adjacent to the gas turbine compressor blade to be removed; S2. The gas turbine compressor blade to be removed is clamped by the clamping module (2), and the clamping module (2) is slidably arranged on the supporting module (1); S3. The pulling module (3) is assembled, the pulling module (3) is connected with the clamping module (2), the clamping module (2) and the gas turbine compressor blade to be removed are moved along the axial groove direction by the pulling module (3), and the gas turbine compressor blade to be removed is removed.

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