Flue gas turbine steam seal dismounting device

Abstract

The utility model relates to a flue gas turbine steam seal dismounting device which comprises a hanging beam, a balancing weight and a connecting block, the balancing weight is fixed on the hanging beam through a locking nut, a first hanging point and a second hanging point are arranged on the hanging beam, the first hanging point is arranged at the position of a balance point of a steam seal and the hanging beam, and the second hanging point is arranged at the position of a balance point of the hanging beam, the balancing weight and the steam seal. The connecting block is arranged at the end of the lifting beam and connected with the steam seal, in the process that the lifting beam is connected with the steam seal through the connecting block and the steam seal is disassembled, a lifting point in the disassembling process is replaced through the first lifting point and the second lifting point, and therefore the situation of serious unbalance in the disassembling process is avoided, and it is guaranteed that steam seal disassembling operation is safely carried out.

Description

Technical Field

[0001] The utility model relates to the technical field of flue gas turbine steam seal disassembly equipment, in particular to a flue gas turbine steam seal disassembly device. Background Art

[0002] In industrial production, large flue gas turbines in catalytic devices often suffer from rotor dynamic imbalance and large vibration due to process problems and blade scaling, and require regular maintenance. However, due to equipment structure problems, the position of the balance point of the steam seal will change as the steam seal moves outward during disassembly and assembly. However, the steam seal has a small disassembly and assembly space and is heavy, so the balance point of the steam seal cannot be found during disassembly. If the steam seal is directly hoisted out, serious imbalance problems may easily lead to safety accidents. Utility Model Content

[0003] The purpose of the utility model is to design a flue gas turbine steam seal disassembly device to solve the technical problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a flue gas turbine steam seal disassembly device, comprising a hanging beam, a counterweight block and a connecting block, the counterweight block being fixed to the hanging beam by a locking nut, the hanging beam being provided with a first hanging point and a second hanging point, the first hanging point being arranged at a balance point between the steam seal and the hanging beam, the second hanging point being arranged at a balance point between the hanging beam, the counterweight block and the steam seal, the connecting block being arranged at the end of the hanging beam, and the connecting block being connected to the steam seal.

[0005] Furthermore, the lifting beam is connected to a reinforcing rib plate, the reinforcing rib plate is provided with a first lifting hole corresponding to the first lifting point, and the reinforcing rib plate is also provided with a second lifting hole corresponding to the second lifting point.

[0006] Furthermore, a third lifting point is provided on the lifting beam, and the third lifting point is arranged at a balance point between the lifting beam and the counterweight block, and a third lifting hole corresponding to the third lifting point is provided on the reinforcing rib plate.

[0007] Furthermore, a seamless steel pipe is arranged in a circumferential array at the end of the suspension beam, one end of the seamless steel pipe is connected to the connecting block, and the other end of the seamless steel pipe is connected to the suspension beam.

[0008] Furthermore, the counterweight block is sleeved on the end of the suspension beam through a sleeve.

[0009] Furthermore, the connecting block is provided with a plurality of mounting holes.

[0010] Compared with the prior art, the utility model has the following beneficial effects: the utility model connects the lifting beam and the steam seal through a connecting block. During the disassembly of the steam seal, the lifting point of the disassembly process is replaced by the first lifting point and the second lifting point, thereby avoiding serious imbalance during the disassembly process and ensuring the safety of the steam seal disassembly operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0012] Figure 2 It is a partial cross-sectional view of the utility model.

[0013] The names of the components marked in the figure are as follows: 1. Lifting beam; 2. Counterweight; 3. Connecting block; 4. Locking nut; 5. Gasket; 6. Reinforcing rib plate; 7. First lifting point; 8. Second lifting point; 9. Third lifting point; 10. First lifting hole; 11. Second lifting hole; 12. Third lifting hole; 13. Seamless steel pipe; 14. Sleeve; 15. Lifting steel plate. DETAILED DESCRIPTION

[0014] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0015] Example: Please refer to Figure 1-2A flue gas turbine steam seal disassembly device comprises a hanging beam 1, a counterweight 2 and a connecting block 3. The counterweight 2 is fixed to the hanging beam 1 by a locking nut 4. A gasket 5 is provided between the locking nut 4 and the counterweight 2, so that the connection between the counterweight 2 and the hanging beam 1 is more stable; the counterweight 2 is sleeved on the end of the hanging beam 1 by a sleeve 14, and the sleeve 14 prevents the counterweight 2 and the hanging beam 1 from rubbing against each other and causing wear; a first hanging point 7 and a second hanging point 8 are provided on the hanging beam 1, and the first hanging point 7 is arranged at the balance point position between the steam seal and the hanging beam 1, that is, after the hanging beam 1 is connected to the steam seal and the counterweight 2 is not installed, the balance point of the hoisting is at the first hanging point 7; the second hanging point 8 is arranged on the hanging beam 1, The balance point position of the counterweight block 2 and the steam seal, that is, after the hanging beam 1 is connected to the steam seal and the counterweight block 2 is installed, the balance point of the lifting is located at the second lifting point 8; the connecting block 3 is arranged at the end of the hanging beam 1, and the connecting block 3 is connected to the steam seal, and the steam seal is fixed to the hanging beam 1 through the connecting block 3; a plurality of mounting holes are provided on the connecting block 3 to facilitate the connection between the connecting block 3 and the steam seal; the hanging beam 1 is connected to a reinforcing rib plate 6, under the action of the reinforcing rib plate 6, the strength and rigidity of the hanging beam 1 are increased to prevent the hanging beam 1 from being deformed by force; the reinforcing rib plate 6 is provided with a first lifting hole 10 corresponding to the first lifting point 7, and the reinforcing rib plate 6 is also provided with a second lifting hole 11 corresponding to the second lifting point 8, through the first lifting Hole 10 and the second lifting hole 11 facilitate the connection of the lifting chain with the hanging beam 1; since the space for operation is small during the lifting process, the position of the suspension bridge cannot be moved, but the torque of the suspension bridge is limited. Therefore, during the outward movement of the hanging beam 1 and the steam seal, it is necessary to change the position of the lifting point, that is, to change the lifting point from the position of the first lifting point 7 to the position of the second lifting point 8, so that the hanging beam 1 and the steam seal can continue to move outward, so that the steam seal is moved to an open position of the flue gas turbine, thereby facilitating the maintenance of the steam seal by the staff; a third lifting point 9 is also provided on the hanging beam 1, and the third lifting point 9 is set at the balance point between the hanging beam 1 and the counterweight block 2, that is, the counterweight block 2 is installed and the hanging beam 1 is not aligned with the hanging beam 1, the balance point is located at the third lifting point 9; the third lifting point 9 is set to facilitate the lifting of the hanging beam 1 and the counterweight block 2 into the flue gas turbine, so that the hanging beam 1 can be smoothly inserted into the flue gas turbine, further improving the safety performance of the operation; the reinforcing rib plate 6 is also provided with a third lifting hole 12 corresponding to the third lifting point 9, so as to facilitate the connection of the lifting chain with the hanging beam 1; the hanging beam 1 is connected with a lifting steel plate 15, which is used as a temporary lifting point of the hanging beam 1 when the lifting point is replaced; the end of the hanging beam 1 is provided with a seamless steel pipe 13 in a circumferential array, one end of the seamless steel pipe 13 is connected to the connecting block 3, and the other end of the seamless steel pipe 13 is connected to the hanging beam 1, and the seamless steel pipe 13 is used to enhance the stability of the connecting block 3 and the hanging beam 1.

[0016] The working principle of this embodiment is as follows: when in use, the counterweight 2 is fixed to the end of the hanging beam 1 by the locking nut 4 and the gasket 5, the lifting chain is connected to the position of the third lifting hole 12, the hanging beam 1 and the counterweight 2 are lifted by the suspension bridge, and then the hanging beam 1 is inserted into the flue gas turbine, the connecting block 3 is connected to the steam seal, and the chain rope is used to connect it to the lifting steel plate 15, and then the lifting chain is replaced to the position of the first lifting hole 10, and then the hanging beam 1 and the steam seal are moved outward through the suspension bridge. When they are moved to the appropriate position, the counterweight 2 is removed from the hanging beam 1, and then the lifting chain is replaced to the position of the second lifting hole 11, and the hanging beam 1 and the steam seal are continued to be moved outward through the suspension bridge, so that the steam seal is moved to an open position of the flue gas turbine, thereby facilitating the staff to inspect and repair the steam seal; therefore, the utility model can avoid serious imbalance during the disassembly of the steam seal and ensure the safe disassembly of the steam seal.

[0017] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A flue gas turbine steam seal disassembly device, characterized in that: The invention comprises a suspension beam (1), a counterweight (2) and a connection block (3); the counterweight (2) is fixed to the suspension beam (1) by a locking nut (4); a first suspension point (7) and a second suspension point (8) are provided on the suspension beam (1); the first suspension point (7) is arranged at a balance point between a steam seal and the suspension beam (1); the second suspension point (8) is arranged at a balance point between the suspension beam (1), the counterweight (2) and the steam seal; the connection block (3) is arranged at the end of the suspension beam (1), and the connection block (3) is connected to the steam seal.

2. The flue gas turbine steam seal disassembly device according to claim 1, characterized in that: The lifting beam (1) is connected to a reinforcing rib plate (6), and a first lifting hole (10) corresponding to the first lifting point (7) is provided on the reinforcing rib plate (6), and a second lifting hole (11) corresponding to the second lifting point (8) is also provided on the reinforcing rib plate (6).

3. The flue gas turbine steam seal disassembly device according to claim 2, characterized in that: The suspension beam (1) is also provided with a third suspension point (9), and the third suspension point (9) is arranged at the balance point between the suspension beam (1) and the counterweight block (2), and the reinforcing rib plate (6) is also provided with a third lifting hole (12) corresponding to the third suspension point (9).

4. The flue gas turbine steam seal disassembly device according to claim 1, characterized in that: A seamless steel pipe (13) is arranged in a circumferential array at the end of the suspension beam (1), one end of the seamless steel pipe (13) is connected to the connection block (3), and the other end of the seamless steel pipe (13) is connected to the suspension beam (1).

5. The flue gas turbine steam seal disassembly device according to claim 1, characterized in that: The counterweight block (2) is sleeved on the end of the suspension beam (1) via a sleeve (14).

6. The flue gas turbine steam seal disassembly device according to claim 1, characterized in that: The connecting block (3) is provided with a plurality of mounting holes.

Images