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CN-122014948-A - Vibration-resistant buffering fixing structure for pipeline of gas turbine

CN122014948ACN 122014948 ACN122014948 ACN 122014948ACN-122014948-A

Abstract

The invention belongs to the technical field of gas turbine pipelines, and in particular relates to a vibration-resistant buffering fixing structure of a gas turbine pipeline, which comprises the following components: the anti-vibration main seat is characterized in that a side anti-vibration mechanism is arranged in the middle of the anti-vibration main seat, one side of the anti-vibration main seat is connected with a mounting frame through the side anti-vibration mechanism, and two ends of the anti-vibration main seat are provided with supporting mechanisms; the problem to be solved in the scheme is that when the spring stiffness is too high, the buffer effect of elastic deformation cannot be fully exerted, and vibration energy is difficult to effectively absorb; when the rigidity of the spring is too small, the suspension stability of the pipeline is insufficient, the pipeline is easy to shake, vibration generated by the operation of the gas turbine is superposed, and the shaking phenomenon is more obvious; according to the scheme, the supporting mechanism and the side vibration-resistant mechanism are arranged, so that the longitudinal vibration energy and the transverse vibration energy of the pipeline can be absorbed in an omnibearing manner, the vibration amplitude is effectively attenuated, the occurrence of resonance phenomenon is avoided, and meanwhile, the pipeline is adapted to the displacement generated by thermal expansion and contraction of the pipeline, and the pipeline is prevented from being damaged due to superposition of thermal stress and vibration.

Inventors

  • WANG WEI
  • HUANG HUI
  • FAN XIA

Assignees

  • 江苏华强新能源科技有限公司

Dates

Publication Date
20260512
Application Date
20260408

Claims (11)

  1. 1. The vibration-resistant buffering fixing structure for the gas turbine pipeline is characterized by comprising the following components: The anti-vibration main seat (1), a side anti-vibration mechanism (4) is arranged in the middle of the anti-vibration main seat (1), one side of the anti-vibration main seat (1) is connected with a mounting frame (11) through the side anti-vibration mechanism (4), and both ends of the anti-vibration main seat (1) are provided with supporting mechanisms (3); The vibration-proof main seat comprises a mounting main frame (2), wherein the mounting main frame (2) is fixedly arranged at the lower side of the vibration-proof main seat (1), and a clamping mechanism (5) is arranged at one side of the mounting main frame (2); The damping sliding seat comprises a damping sliding groove (31), wherein the damping sliding groove (31) is formed in the inner side of a vibration-resistant main seat (1), a damping sliding block (32) is arranged in the inner side of the damping sliding groove (31), a connecting rod (33) is fixedly arranged on one side of the damping sliding block (32), the connecting rod (33) is fixedly connected with a mounting main frame (2), a buffer spring (34) is arranged on the inner side of the damping sliding groove (31), the buffer spring (34) is sleeved on the outer side of the connecting rod (33), two ends of the buffer spring (34) are respectively supported at one ends of the damping sliding block (32) and one end of the damping sliding groove (31), a damping block (35) is fixedly arranged on the outer side of the buffer spring (34), the damping block (35) is in sliding connection with the inner wall of the damping sliding groove (31), and a compressing mechanism (6) is fixedly arranged on the other side of the damping sliding block (32). The compressing mechanism (6) comprises a compressing seat (61), a compressing sliding groove (67) is formed in the inner side of the compressing seat (61), a damping guide pillar (63) is fixedly arranged in the inner side of the compressing sliding groove (67), a compressing sliding block (62) is arranged in the inner side of the compressing sliding groove (67) in a sliding mode, the compressing sliding block (62) is in sliding connection with the damping guide pillar (63), a damping spring (65) is arranged on one side of the compressing sliding block (62), a damping guide block (64) is fixedly arranged on the outer side of the damping spring (65), and the damping guide block (64) is in sliding connection with the damping guide pillar (63).
  2. 2. A vibration-resistant buffering fixing structure for a gas turbine pipeline according to claim 1, wherein the connecting rod (33) is square in cross section, and the vibration-resistant damping block (35) is slidably mounted on the outer side surface of the connecting rod (33).
  3. 3. The vibration-resistant buffering fixing structure of a gas turbine pipeline according to claim 1, wherein one end of the compressing sliding block (62) is rotatably matched with an adjusting screw (66), and one end of the adjusting screw (66) is connected with the vibration-resistant main seat (1) through threaded holes in a screwing mode.
  4. 4. The vibration-resistant buffering fixing structure of a gas turbine pipeline according to claim 1, wherein the side vibration-resistant mechanism (4) comprises a side sliding groove (41), the side sliding groove (41) is formed in the middle of a vibration-resistant main seat (1), a side pressure damping sliding plate (44) is slidably matched with the inner side of the side sliding groove (41), a side pressure spring (45) is fixedly arranged on one side of the side pressure damping sliding plate (44), and one end of the side pressure spring (45) is supported on the inner wall of the side sliding groove (41).
  5. 5. The vibration-resistant buffering fixing structure for a gas turbine pipeline according to claim 4, wherein a positioning slide plate (42) is slidably matched with the middle part of the side sliding groove (41), a pushing slide plate (43) is fixedly arranged on one side of the positioning slide plate (42), and the pushing slide plate (43) is slidably arranged between the side pressure damping slide plates (44).
  6. 6. The vibration-proof buffering fixing structure for a gas turbine pipeline according to claim 5, wherein one side of the side pressure damping slide plate (44) is provided with a V-shaped groove, and two sides of the pushing slide plate (43) are matched with the V-shaped groove.
  7. 7. The vibration-resistant buffering fixing structure of a gas turbine pipeline according to claim 1, wherein a connecting seat (21) is fixedly arranged on one side of the installation main frame (2), the connecting seat (21) is fixedly connected with a connecting rod (33), and the cross section of the connecting seat (21) is identical to the cross section of the connecting rod (33).
  8. 8. The vibration-resistant buffering fixing structure of a gas turbine pipeline according to claim 7, wherein a connecting plug (22) is arranged at one end of the connecting seat (21), a connecting slot (23) is formed at one end of the connecting rod (33), and the connecting plug (22) is inserted into the inner side of the connecting slot (23) and is fixed through screws.
  9. 9. The vibration-resistant buffering fixing structure of a gas turbine pipeline according to claim 1, wherein the clamping mechanism (5) comprises a clamping screw rod (51) and a clamping pressing plate (52), the clamping screw rod (51) is rotatably installed on the installation main frame (2) through a threaded hole, an elastic supporting cylinder (55) is installed at one end of the clamping screw rod (51), the clamping pressing plate (52) is fixedly installed at one end of the elastic supporting cylinder (55), a rubber pad (54) is fixedly installed on one side of the clamping pressing plate (52), a guide sliding column (53) is fixedly installed on the other side of the clamping pressing plate (52), and the guide sliding column (53) is in sliding connection with the installation main frame (2) through a sliding hole.
  10. 10. The vibration-resistant buffering fixing structure of a gas turbine pipeline according to claim 9, wherein the elastic supporting cylinder (55) comprises a main cylinder (551), a supporting sliding groove (553) is formed in the inner side of the main cylinder (551), a supporting sliding plate (554) is slidably arranged in the supporting sliding groove (553), one end of the clamping screw (51) is rotatably connected with the supporting sliding plate (554), a hydraulic damper (555) and a supporting spring (552) are arranged on one side of the supporting sliding plate (554), and the hydraulic damper (555) and the supporting spring (552) are fixed at one end of the supporting sliding groove (553).
  11. 11. The gas turbine pipeline is fixed at a hoisting position through the mounting frame (11) during use, the gas turbine pipeline is mounted between the clamping mechanisms (5) at the inner side of the main mounting frame (2) during mounting, the elastic supporting cylinder (55) and the clamping pressing plate (52) are pushed to move through the rotary clamping screw (51), the clamping pressing plate (52) is clamped on the pipeline through the rubber pad (54) so as to fix the pipeline, the clamping screw (51) can be rotated according to requirements to adjust the pressure pressed on the elastic supporting cylinder (55) so as to adjust the vibration resistance of the elastic supporting cylinder (55), the pipeline is stressed during use, the clamping screw (51) can drive the supporting sliding plate (554) to slide in the supporting sliding groove (553) and press on the supporting spring (552) and the hydraulic damper (555) to perform vibration absorption and buffering, and when the main mounting frame (2) shakes due to vibration of the pipeline, the connecting rod (33) and the damping sliding block (32) are driven to slide under the inner wall of the damping sliding groove (31), meanwhile the damping sliding block (32) is pressed on the buffer spring (34), the damping sliding block (32) is driven to deform under the action of the damping block (35) when the damping sliding block (34) is driven to move under the force of the damping block (35), the device comprises a damping spring (65), a damping guide block (64) and a positioning slide plate (42) at one end of a mounting frame (11) and a pushing slide plate (43) transversely slide between a side pressing damping slide plate (44) to provide damping when the damping guide block (65) is stressed and deformed, so that the damping effect is better, the adjusting screw (66) can be rotated according to requirements, the adjusting screw (66) is matched with a threaded hole to adjust the position of the adjusting screw (66) on an anti-vibration main seat (1), one end of the adjusting screw (66) pushes the pressing slide block (62) to press the damping spring (65) to adjust the damping strength of a pressing mechanism (6) and a supporting mechanism (3), and the positioning slide plate (42) at one end of the mounting frame (11) and the pushing slide plate (43) transversely slide between the side pressing damping slide plate (44) to provide damping when the main frame (2) and the anti-vibration main seat (1) transversely vibrate, so that the side pressing slide plate (44) is pushed to be pressed against the side pressing spring (45) to assist in transversely damping and damping.

Description

Vibration-resistant buffering fixing structure for pipeline of gas turbine Technical Field The invention belongs to the technical field of gas turbine pipelines, and particularly relates to a vibration-resistant buffering fixing structure of a gas turbine pipeline. Background The gas turbine pipeline is a pipeline system for connecting the gas turbine body with an external system and conveying working media (air or waste gas), and mainly comprises an air inlet pipeline and an exhaust pipeline. The fixing structure of the gas turbine pipeline takes the fixing support as a core, and is matched with guiding, sliding, spring supporting and hanging frames and the like to form a complete supporting system, and the core functions are to completely restrict the displacement of the pipeline, bear thermal expansion and contraction and vibration load and protect equipment interfaces. In the actual installation and operation process of the gas turbine pipeline, the hanging bracket is a core bearing component for fixedly installing the pipeline, and the main function of the hanging bracket is to stably hang the pipeline at a specified use position and give consideration to the supporting and positioning of the pipeline and basic displacement compensation. At present, springs are commonly adopted in the industry as vibration-resistant buffering core members of the hanging frame, and vibration energy generated in the pipeline operation process is absorbed by utilizing the elastic deformation characteristics of the springs, so that a certain buffering and vibration-reducing effect is realized, vibration is prevented from being directly transmitted to a pipeline body and an equipment interface, and the primary effects of protecting a pipeline structure and prolonging the service life are achieved. In the installation process, if the shape selection of the spring hanger is unreasonable, or the installation position deviation is larger, the fixation is not firm, the vibration resistance and buffering effect of the spring can be further weakened. If the rigidity of the spring is too high, the buffer effect of elastic deformation cannot be fully exerted, vibration energy is difficult to be effectively absorbed, and if the rigidity of the spring is too low, the suspension stability of the pipeline is insufficient, the pipeline is easy to shake, vibration generated by the operation of the gas turbine is superposed, the shaking phenomenon is more obvious, and the vibration-resistant buffer fixing structure of the pipeline of the gas turbine needs to be designed to solve the problems. Disclosure of Invention The invention aims to provide a vibration-resistant buffering fixing structure for a gas turbine pipeline, which aims to solve the problems in the background technology. In order to achieve the purpose, the invention provides the technical scheme that the vibration-resistant buffering fixing structure of the gas turbine pipeline comprises the following components: The anti-vibration main seat is characterized in that a side anti-vibration mechanism is arranged in the middle of the anti-vibration main seat, one side of the anti-vibration main seat is connected with a mounting frame through the side anti-vibration mechanism, and two ends of the anti-vibration main seat are provided with supporting mechanisms; the vibration-proof main seat comprises a vibration-proof main seat, a mounting main frame, a clamping mechanism and a vibration-proof main seat, wherein the mounting main frame is fixedly arranged at the lower side of the vibration-proof main seat; The damping sliding chute is arranged on the inner side of the anti-vibration main seat, a damping sliding block is arranged on the inner side of the damping sliding chute in a sliding mode, a connecting rod is fixedly arranged on one side of the damping sliding block, the connecting rod is fixedly connected with the main mounting frame, a buffer spring is arranged on the inner side of the damping sliding chute and sleeved on the outer side of the connecting rod, two ends of the buffer spring are respectively supported on one end of the damping sliding block and one end of the damping sliding chute, a damping block is fixedly arranged on the outer side of the buffer spring, the damping block is in sliding connection with the inner wall of the damping sliding chute, and a compression mechanism is fixedly arranged on the other side of the damping sliding block; The compressing mechanism comprises a compressing seat, a compressing sliding groove is formed in the inner side of the compressing seat, a damping guide post is fixedly arranged in the inner side of the compressing sliding groove, a compressing sliding block is arranged in the inner side of the compressing sliding groove and is in sliding connection with the damping guide post, a damping spring is arranged on one side of the compressing sliding block, a damping guide block is fixedly arranged on the outer side of the dampin