Gas turbine engine elevation adjustment assembly

Abstract

This invention discloses a gas turbine unit elevation adjustment component, including a gas turbine bracket, a unit support, a movable block, and a jack. The unit support includes a base plate, a bottom plate, and support legs. The bottom plate is fixedly connected to support legs corresponding to the gas turbine bracket. The top of the support legs is detachably connected to the gas turbine bracket. A lifting lug is provided at the lower part of the support legs. A through hole is provided on the bottom plate at the position corresponding to the lifting lug. The base plate is located below the through hole. The movable block is slidably located in the through hole. The jack is placed between the movable block and the lifting lug. When the jack is raised, the movable block moves downward relative to the bottom plate, and its lower part abuts against the base plate, forming a gap between the bottom plate and the base plate, thereby raising the gas turbine.

Description

Technical Field

[0001] This invention relates to the field of gas turbine assembly technology, and in particular to a gas turbine unit elevation adjustment component. Background Technology

[0002] When a gas turbine is installed on site, its rotor is usually connected to the generator rotor so that the gas turbine can drive the generator to generate electricity when it is running.

[0003] To safely and reliably connect the two rotors of the gas turbine and generator, the elevation of the gas turbine unit must be adjusted so that its center is at the same height as the generator center, allowing subsequent installation work to proceed smoothly. In existing technology, the usual adjustment method is to lift the entire unit to a specified height using a crane or overhead crane, and then change the bottom shims to change the elevation of the gas turbine unit. This method requires large equipment and multiple personnel to coordinate, and the unit weighs tens or even hundreds of tons, so lifting the entire unit poses safety risks and wastes manpower and resources. Therefore, in actual installation, a method is needed to adjust the unit's elevation without using cranes or overhead cranes and with low labor costs. Summary of the Invention

[0004] The purpose of this invention is to provide a gas turbine unit elevation adjustment component to address the aforementioned problems.

[0005] The technical solution adopted in this invention is as follows:

[0006] A gas turbine unit elevation adjustment assembly includes a gas turbine bracket, a unit support, a movable block, and a jack. The unit support includes a base plate, a bottom plate, and support legs. The bottom plate is fixedly connected to support legs corresponding to the gas turbine bracket. The top of the support legs is detachably connected to the gas turbine bracket. A lifting lug is provided at the lower part of the support legs. A through hole is provided on the bottom plate at the position corresponding to the lifting lug. The base plate is located below the through hole. The movable block is slidably located in the through hole. The jack is placed between the movable block and the lifting lug. When the jack is raised, the movable block moves downward relative to the bottom plate, and its lower part abuts against the base plate, forming a gap between the bottom plate and the base plate, thereby raising the gas turbine.

[0007] Furthermore, the movable block is a cylindrical structure that matches the through hole, and its height is greater than the thickness of the base plate.

[0008] Furthermore, a countersunk hole with a radius larger than the through hole is provided at the top of the through hole, and a boss matching the countersunk hole is provided at the top of the movable block.

[0009] Furthermore, the side of the movable block is provided with a suspension groove. When the movable block is suspended at a certain height, the suspension groove is flush with the upper surface of the base plate. The base plate is provided with a suspension plate at the position corresponding to the suspension groove. One end of the suspension plate is rotatably connected to the base plate. The suspension plate can be attached to the base plate and rotated into the suspension groove. When the suspension plate is inserted into the suspension groove, the bottom surface of the movable block maintains a gap with the base plate and is no longer affected by gravity and falls.

[0010] Furthermore, a locking screw is provided at the corresponding position on the base plate, and a U-shaped groove matching the locking screw is provided at one end of the suspension plate.

[0011] Furthermore, it includes a lifting component, the outer surface of which is provided with external threads, and the top of the movable block is provided with a lifting hole, the lifting hole being provided with an internal thread that matches the external threads of the lifting component.

[0012] Furthermore, it includes a pad, which is disposed between the base plate and the bottom plate. The pad has a U-shaped groove that prevents interference with the movable block when the pad is inserted. The pad is available in various thicknesses.

[0013] A method for using a gas turbine unit elevation adjustment component includes the following steps:

[0014] S1: Mount the gas turbine onto the outriggers using a gas turbine bracket;

[0015] S2: Loosen the locking screws on the base plate and rotate the suspension plate out of the suspension groove;

[0016] S3: After the suspension plate rotates out, the movable block falls onto the base plate under the action of gravity;

[0017] S4: Place the jack between the movable block and the lifting lug, raise the jack so that the upper surface of the jack contacts the lifting lug and is subjected to force;

[0018] S5: The gas turbine is raised, and a gap is formed between the base plate and the foundation plate. A shim of the corresponding size is inserted into the gap.

[0019] S6: Lower the jack and observe whether the gas turbine is in the correct height position;

[0020] S7: If there is a deviation in the height position of the gas turbine, raise the jack again, and then insert, remove or replace the shims. Repeat steps S6-S7 until the gas turbine reaches the specified height position.

[0021] S8: Secure the gas turbine to the designated position, disconnect the gas turbine support from the outriggers, and then remove the entire unit support.

[0022] S9: Raise the jack, remove the shims, and collect and manage them uniformly;

[0023] S10: Lower the jack, screw the lifting component into the lifting hole of the movable block, lift the movable block to a suitable height, screw the suspension plate into the suspension groove, and use the locking screws to lock the suspension plate.

[0024] Furthermore, before step S1, the following steps are also included: a shim is placed between the base plate and the bottom plate in advance. If the initial height of the gas turbine is too high, the shim can be removed or replaced with a thinner one.

[0025] Furthermore, before step S1, the following steps are also included: leveling the ground before the height adjustment begins, so that after the unit support is placed, the tops of the two outriggers are at the same height.

[0026] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0027] This invention adopts a simple technical solution. This method is simple to operate, highly feasible, safe, and has high control precision. It does not require the use of cranes or overhead cranes, which can not only greatly shorten the installation and adjustment time, but also significantly reduce labor costs. Attached Figure Description

[0028] Figure 1 This is the front view of the present invention.

[0029] Figure 2 This is a side view of the present invention.

[0030] Figure 3 This is a side view of the jack of the present invention in operation.

[0031] Figure 4 This is a top view of the present invention.

[0032] Figure 5 This is the main view of the active block.

[0033] Figure 6 This is a top view of the gasket.

[0034] The markings in the diagram are: 1 - Gas turbine bracket, 2 - Unit support, 21 - Lifting lug, 22 - Base plate, 3 - Movable block, 31 - Suspension groove, 4 - Suspension plate, 5 - Locking screw, 6 - Foundation plate, 7 - Jack, 8 - Shim, 9 - Support leg, 10 - Through hole, 11 - Countersunk hole, 12 - Boss, 13 - U-shaped groove, 14 - Lifting hole, 15 - U-shaped groove. Detailed Implementation

[0035] The present invention will now be described in detail with reference to the accompanying drawings.

[0036] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0037] In this embodiment, as Figure 1 As shown, a gas turbine unit elevation adjustment component includes a gas turbine bracket 1, a unit support 2, a movable block 3, and a jack 7. The unit support 2 includes a base plate 6, a bottom plate 22, and support legs 9. The gas turbine itself has a built-in gas turbine bracket 1 for fixing, which is distributed on both sides of the gas turbine. The bottom plate 22 is fixedly connected to two support legs 9 corresponding to the gas turbine bracket 1. The bottom plate 22 is made of steel plate, and the support legs 9 are made of I-beam steel. The bottom plate 22 and the support legs 9 are fixedly connected by welding. The top of the support legs 9 is detachably connected to the gas turbine bracket 1. The top of the support legs 9 is provided with screw holes corresponding to the gas turbine bracket 1. Bolts are inserted into the screw holes to realize the detachable connection between the top of the support legs 9 and the gas turbine bracket 1.

[0038] like Figure 2 As shown, the lower part of the support leg 9 is provided with a lifting ear plate 21. In this embodiment, the lifting ear plate 21 is set in the groove of the I-beam, and the height between it and the movable block 3 is greater than the minimum height of the jack 7 and less than the maximum stroke of the jack 7. The base plate 22 is provided with a through hole 10 corresponding to the position of the lifting ear plate 21. The base plate 22 has a circular through hole 10 directly below the lifting ear plate 21 for installing the movable block 3. The base plate 6 is set below the through hole 10. In this embodiment, the base plate 6 is a steel plate larger than the base plate 22 and is set below the base plate 22 so that the base plate 22 can rest completely on the base plate 6. This can increase the bearing area of ​​the bottom surface and prevent the overall equipment from sinking unevenly due to excessive weight, which would cause errors in subsequent height adjustment.

[0039] The movable block 3 is slidably set in the through hole 10. The jack 7 is placed between the movable block 3 and the lifting ear plate 21. When the jack 7 is raised, the upper end of the jack 7 abuts against the lifting ear plate 21 and the lower end abuts against the movable block 3. The movable block 3 moves downward relative to the base plate 22. The lower part of the movable block 3 abuts against the base plate 6. The jack 7 continues to rise, lifting the lifting ear plate 21 and driving the support leg 9. The support leg 9 drives the gas turbine to rise. At the same time, a gap will also be formed between the base plate 22 and the base plate 6 so that the shim 8 can be added later to raise the gas turbine.

[0040] In this embodiment, it should be noted that its structure is as follows: Figure 2As shown, the movable block 3 is a cylindrical structure that matches the through hole 10, and its height is greater than the thickness of the base plate 22. The movable block 3 is designed to match the shape of the through hole 10 to prevent the movable block 3 from becoming unstable and wobbling in the through hole 10 when under force, so as to raise the overall structure more stably, and at the same time facilitate the installation of limiting structures such as the suspension plate 4. The reason why the height of the movable block 3 is greater than the thickness of the base plate 22 is that, in the initial state, when the lower end of the movable block 3 contacts the base plate 6, the upper end of the movable block 3 is higher than the base plate 22. After the jack 7 is put in, the jack 7 will not directly press against the base plate 22 and fail to effectively raise the height because the bottom surface of the jack 7 is greater than the upper surface of the movable block 3, or the bottom surface of the jack 7 will be smaller than the top surface of the movable block 3, causing the jack 7 to extend into the through hole 10 and create unnecessary safety hazards.

[0041] In this embodiment, as Figure 3 As shown, the top of the through hole 10 is provided with a countersunk hole 11 with a radius larger than that of the through hole 10. The cross-section of the through hole 10 is T-shaped. The top of the movable block 3 is provided with a boss 12 that matches the countersunk hole 11. The advantage of this design is that it adds a limiting mechanism to prevent the movable block 3 from falling into the through hole 10 due to misoperation and being unable to be removed. Furthermore, because of the addition of the boss 12 structure, the adjustable range of the movable block 3 is limited. It can be determined according to the overall height of the movable block 3 and the height of the boss 12. When the movable block 3 moves downward relative to the base plate 22 to a certain position, the boss 12 locks the edge of the countersunk hole 11 to prevent the movable block 3 from continuing to move downward and causing safety hazards. Furthermore, the bottom of the movable block 3 is set as a cylinder with a small radius. This not only saves material while ensuring the strength of the movable block 3, but also makes it easier to insert the gasket 8, preventing interference between the bottom of the movable block 3 and the U-shaped groove 15 on the gasket 8 due to excessive size, which would become an unnecessary safety hazard.

[0042] In this embodiment, its structure is as follows: Figure 5 As shown, the side of the movable block 3 is provided with a hanging groove 31. The hanging groove 31 can be a hanging groove 31 that surrounds the movable block 3, or it can be a structure in which only one side is provided with a hanging groove 31. In this embodiment, the first setting method is adopted. This setting method can reduce the weight of the movable block 3. At the same time, when it is necessary to insert the hanging plate 4, the hanging groove 31 can be found more easily, saving time and labor costs.

[0043] When the movable block 3 is suspended at a certain height, the suspension groove 31 is flush with the upper surface of the base plate 22. Therefore, when the suspension plate 4 is hooked into the suspension groove 31, the movable block 3 is suspended. The advantage of this design is that it can prevent the movable block 3 from rubbing or interfering with other parts during transportation. The base plate 22 is provided with a suspension plate 4 at the position corresponding to the suspension groove 31. One end of the suspension plate 4 is rotatably connected to the base plate 22 by a pin. The suspension plate 4 can be attached to the base plate 22 and rotated into the suspension groove 31. When the suspension plate 4 is engaged in the suspension groove 31, as shown in Figure 4. At position a shown, the bottom surface of the movable block 3 maintains a gap with the base plate 6, preventing it from falling due to gravity. This not only prevents friction interference between the movable block 3 and the ground, but also avoids the movable block 3 from falling or being lost. At the same time, with this rotatable suspension plate 4 structure, when the device needs to be used for height adjustment, after rotating out the suspension plate 4, the movable block 3 will fall onto the base plate 6 due to gravity. When not in use or during transportation, the suspension plate 4 can be used to hang the suspension groove 31, allowing the movable block 3 to be suspended in the air.

[0044] In this embodiment, as Figure 4 As shown, the base plate 22 has a locking screw 5 at the end of the suspension plate 4 where the movable block 3 is suspended, and a U-shaped groove 13 matching the locking screw 5 is provided at one end of the suspension plate 4. When the locking screw 5 is tightened, the U-shaped groove 13 is locked, and the suspension plate 4 is locked and cannot rotate. When it is necessary to rotate the suspension plate 4, the locking screw 5 is loosened, the U-shaped groove 13 is no longer locked, and the suspension plate 4 can rotate smoothly. This setting can prevent the suspension plate 4 from sliding out of the suspension groove 31 due to external force when the device is not in use or during transportation, causing the movable block 3 to fall. It can also prevent the movable block 3 from rubbing against the ground and prevent the movable block 3 from falling or being lost.

[0045] In this embodiment, a lifting component is included. The outer surface of the lifting component is provided with an external thread, and the top of the movable block 3 is provided with a lifting hole 14. The lifting hole 14 is provided with an internal thread that matches the external thread of the lifting component. When the movable block 3 needs to be removed or fixed, it is inconvenient to remove it under force because the movable block 3 is in the through hole 10. Therefore, by adopting the above implementation method, the lifting component can be screwed into the lifting hole 14 and lifted out using the lifting component. The structure is simple and easy to implement.

[0046] In this embodiment, a pad is included, which is disposed between the base plate 6 and the bottom plate 22. The pad is provided with a U-shaped groove 15 to prevent interference with the movable block 3 when the pad is inserted. The pad is made of steel plate with the same area as the bottom plate 22. This arrangement can increase the bearing area of ​​the pad and prevent the bottom plate 22 from deforming due to uneven stress over a long period of time, which would affect the height adjustment accuracy. The design of the U-shaped groove 15 can accommodate the movable block 3 that extends downward to the base plate 6. It can be in the form of a single piece of pad 8 or a symmetrical shape inserted from both sides. The latter has a smaller U-shaped groove 15 and a larger bearing area of ​​pad 8. The pad is available in various thicknesses to accommodate different elevation dimensions. The appropriate thickness of pad 8 can be selected according to different height adjustment requirements.

[0047] This embodiment describes a method for using a gas turbine unit elevation adjustment component, characterized by the following steps:

[0048] S1: Mount the gas turbine onto the support leg 9 via the gas turbine bracket 1;

[0049] S2: Loosen the locking screw 5 on the base plate 22 and rotate the suspension plate 4 out of the suspension groove 31;

[0050] S3: After the suspension plate 4 rotates out, the movable block 3 falls onto the base plate 6 under the action of gravity;

[0051] S4: Place the jack 7 between the movable block 3 and the lifting lug 21, raise the jack 7 so that the upper surface of the jack 7 contacts the lifting lug 21 and is subjected to force.

[0052] S5: The gas turbine is raised, and a gap is formed between the base plate 22 and the foundation plate 6. A shim 8 of the corresponding size is inserted into the gap.

[0053] S6: Lower the jack 7 and observe whether the gas turbine is in the correct height position;

[0054] S7: If there is a deviation in the height position of the gas turbine, raise the jack 7 again, and then insert, remove or replace the shims 8. Repeat steps S6-S7 until the gas turbine reaches the specified height position.

[0055] S8: Secure the gas turbine to the designated position, disconnect the gas turbine support 1 from the support leg 9, and then remove the unit support 2 as a whole;

[0056] S9: Raise the jack 7, remove the shim 8, and collect and manage them uniformly;

[0057] S10: Lower the jack 7, screw the lifting component into the lifting hole 14 of the movable block 3, lift the movable block 3 to a suitable height, screw the suspension plate 4 into the suspension groove 31, and use the locking screw 5 to lock the suspension plate 4.

[0058] A method for using a gas turbine unit elevation adjustment component according to the present invention involves first hoisting the entire unit support 2 below the generator set where the gas turbine will be installed, then hoisting the gas turbine above the unit support 2 and securing it using the matching screw holes on the outriggers 9 and the gas turbine bracket 1; loosening the locking screws 5 with a tool, rotating the suspension plate 4 from position a to position b, causing the movable block 3 to fall onto the base plate 6 under gravity; placing the jack 7 between the movable block 3 and the lifting lug 21, raising the jack 7 so that its upper surface contacts and is stressed by the lifting lug 21, and the lower surface of the jack 7 abuts against the movable block 3, causing the movable block 3 to move downward relative to the unit support 2. The unit support 2 then causes the gas turbine to rise relative to the base plate 6, creating a gap between the base plate 6 and the bottom plate 22. The unit height is then observed. To check the height difference from the specified height, insert shims 8 of the corresponding size into the gap, lower jack 7, and observe whether the gas turbine height position is correct. If the gas turbine height position is deviated, if the height is too high, raise jack 7 again, remove or replace shims 8. If the height is insufficient, insert or replace shims 8 until the gas turbine reaches the specified height position. Fix the gas turbine to the specified position, disconnect the connection between the gas turbine bracket 1 and the outrigger 9, remove the unit support 2 as a whole, raise jack 7 again, and remove shims 8. If it is not removed as a whole before raising, it may affect the gas turbine unit that has already been adjusted in height. Lower jack 7, screw the lifting parts into the lifting hole 14 of movable block 3, lift movable block 3 to the appropriate height, screw the suspension plate 4 into the suspension groove 31, and use locking screws 5 to lock the suspension plate 4, waiting for the next use.

[0059] The method of using the gas turbine unit elevation adjustment component in this embodiment also includes the following steps: a shim 8 is placed between the base plate 6 and the bottom plate 22 in advance. If the initial height of the gas turbine is too high, the shim 8 can be removed or replaced with a thinner one.

[0060] The present invention discloses a method for using a gas turbine unit elevation adjustment component. By inserting an initial shim 8, some unnecessary procedures can be reduced. When the height needs to be lowered, it is only necessary to remove the initial shim 8 or replace it with a thinner shim 8.

[0061] The method of using the gas turbine unit elevation adjustment component in this embodiment also includes the following steps: before the elevation adjustment begins, level the ground so that after the unit support 2 is placed as a whole, the tops of the two support legs 9 are at the same height.

[0062] The present invention discloses a method for using a gas turbine unit elevation adjustment component. Before construction, the ground is leveled to ensure that the unit support 2 remains on a horizontal plane. Subsequent elevation adjustment work can be carried out on both sides simultaneously. If leveling is not possible, the overall structure can be balanced by using the different lifting heights of the jacks 7 on both sides and smaller shims 8.

[0063] The above description is merely a preferred embodiment of the invention and is not intended to limit the invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the invention should be included within the scope of protection of the invention.

Claims

1. A gas turbine unit elevation adjustment component, characterized in that: The system includes a gas turbine support (1), a unit support (2), a movable block (3), and a jack (7). The unit support (2) includes a base plate (6), a bottom plate (22), and support legs (9). The bottom plate (22) is fixedly connected to a support leg (9) corresponding to the gas turbine support (1). The top of the support leg (9) is detachably connected to the gas turbine support (1). The lower part of the support leg (9) is provided with a lifting lug (21). The bottom plate (22) is corresponding to the lifting lug (21). A through hole (10) is provided at position 1), the base plate (6) is located below the through hole (10), the movable block (3) is slidably located in the through hole (10), the jack (7) is placed between the movable block (3) and the lifting ear plate (21). When the jack (7) is raised, the movable block (3) moves downward relative to the bottom plate (22), and the lower part abuts against the base plate (6). A gap is formed between the bottom plate (22) and the base plate (6), so that the gas turbine is raised. The movable block (3) is a cylindrical structure that matches the through hole (10), and its height is greater than the thickness of the base plate (22); The movable block (3) has a suspension groove (31) on its side. When the movable block (3) is suspended at a certain height, the suspension groove (31) is flush with the upper surface of the base plate (22). The base plate (22) has a suspension plate (4) at the position corresponding to the suspension groove (31). One end of the suspension plate (4) is rotatably connected to the base plate (22). The suspension plate (4) can be attached to the base plate (22) and rotated into the suspension groove (31). When the suspension plate (4) is inserted into the suspension groove (31), the bottom surface of the movable block (3) maintains a gap with the base plate (6) and is no longer affected by gravity and falls.

2. The gas turbine unit elevation adjustment assembly according to claim 1, characterized in that: The top of the through hole (10) is provided with a countersunk hole (11) with a radius larger than that of the through hole (10), and the top of the movable block (3) is provided with a boss (12) that matches the countersunk hole (11).

3. The gas turbine unit elevation adjustment assembly according to claim 1, characterized in that: The base plate (22) is provided with a locking screw (5) at a corresponding position, and one end of the suspension plate (4) is provided with a U-shaped groove (13) that matches the locking screw (5).

4. The gas turbine unit elevation adjustment assembly according to claim 1, characterized in that: The device includes a lifting component, the outer surface of which is provided with an external thread, and the top of the movable block (3) is provided with a lifting hole (14), the lifting hole (14) being provided with an internal thread that matches the external thread of the lifting component.

5. The gas turbine unit elevation adjustment assembly according to claim 1, characterized in that: Includes a pad, which is disposed between the base plate (6) and the bottom plate (22). The pad is provided with a U-shaped groove (15) that prevents interference with the movable block (3) when the pad is inserted. The pad includes various thicknesses.

6. A method of using a gas turbine unit elevation adjustment component, employing the gas turbine unit elevation adjustment component as described in any one of claims 1-5, characterized in that: Includes the following steps: S1: The gas turbine is mounted on the support leg (9) via the gas turbine bracket (1); S2: Loosen the locking screw (5) on the base plate (22) and rotate the suspension plate (4) out of the suspension groove (31); S3: After the suspension plate (4) rotates out, the movable block (3) falls onto the base plate (6) under the action of gravity; S4: Place the jack (7) between the movable block (3) and the lifting lug (21), raise the jack (7) so that the upper surface of the jack (7) contacts the lifting lug (21) and is subjected to force; S5: The gas turbine is raised, and a gap is formed between the base plate (22) and the foundation plate (6). A shim (8) of the corresponding size is inserted into the gap. S6: Lower the jack (7) and observe whether the gas turbine is in the correct height position; S7: If there is a deviation in the height position of the gas turbine, raise the jack again (7), and then insert, remove or replace the shims (8). Repeat steps S6-S7 until the gas turbine reaches the specified height position. S8: Fix the gas turbine to the designated position, remove the connection between the gas turbine bracket (1) and the support leg (9), and then remove the unit support (2) as a whole; S9: Raise the jack (7), remove the shim (8), and collect and manage them uniformly; S10: Lower the jack (7), screw the lifting component into the lifting hole (14) of the movable block (3), lift the movable block (3) to a suitable height, screw the suspension plate (4) into the suspension groove (31), and use the locking screw (5) to lock the suspension plate (4).

7. A method for using a gas turbine unit elevation adjustment component according to claim 6, characterized in that: Before step S1, the following steps are also included: a shim (8) is placed between the base plate (6) and the bottom plate (22) in advance. If the initial height of the gas turbine is too high, the shim (8) is removed or replaced with a thinner one.

8. A method for using a gas turbine unit elevation adjustment component according to claim 6, characterized in that: Before step S1, the following steps are also included: before the height adjustment begins, level the ground so that after the unit support (2) is placed as a whole, the tops of the two outriggers (9) are at the same height.

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