A pressure vibration optimization device

Abstract

The utility model discloses a pressure vibration optimization device, including two vertical guide rails (1), horizontal guide rail (2), mass block (3), a plurality of inflatable components (4) and a plurality of elastic components (5), the both ends of horizontal guide rail (2) are connected 1 vertical guide rail (1) respectively, and two vertical guide rails (1) are arranged in parallel, the vertical guide rail (1) with horizontal guide rail (2) inside all are equipped with inflatable component (4) with elastic component (5), and mass block (3) sets up on horizontal guide rail (2).

Description

Technical Field

[0001] This utility model relates to the field of gas turbine vibration control, specifically to a pressure vibration optimization device. Background Technology

[0002] Due to the complex and precise structure of gas turbines, their internal components are subjected to complex environments such as high temperature and high frequency vibration for extended periods. Gas turbines contain various thin-walled structures, such as combustion chambers, exhaust channels, and dust covers. Under excitation from high-temperature gas fluctuations, rotor rotation, compressor airflow surge, and variable loads on the gas turbine, these components are highly susceptible to vibration damage.

[0003] Currently, most methods for addressing vibration issues in gas turbines involve installing vibration monitoring points to monitor the vibration acceleration, amplitude, and frequency of thin-walled components to assess potential risks during unit operation. However, for existing gas turbine units, monitoring the vibration characteristics of thin-walled components through these points presents significant challenges. If a risk is detected, direct manipulation of the internal thin-walled structure is difficult. Emergency contact with experts is usually required, necessitating an emergency shutdown to investigate the cause, and sometimes even disassembly for inspection. This process incurs substantial costs in terms of manpower, resources, finances, and time.

[0004] Patent document CN117345795A discloses a scissor-type amplified nonlinear vibration damper, which consists of a frame, two side slide rails, two side sliders, two mass blocks, two elastic components, a slide rod, two connecting rods, two bottom sliders, and a bottom slide rail. However, it does not solve the problem that when the thin-walled structure of the gas turbine is at risk of vibration during operation, the vibration characteristics cannot be changed by adjusting the structure of the thin-walled components.

[0005] Patent document CN203753421U discloses a nonlinear energy trap vibration reduction device for overall spacecraft vibration suppression, including at least two sets of nonlinear vibration reduction mechanisms, an adapter, an upper cantilever, and a lower cantilever. The upper and lower cantilever are respectively installed at the upper and lower ends of the adapter. The nonlinear vibration reduction mechanisms are evenly installed on the adapter around the adapter and the upper and lower cantilever. However, it does not solve the problem that when the thin-walled structure of the gas turbine is at risk of vibration during operation, the vibration characteristics cannot be changed by adjusting the structure of the thin-walled component.

[0006] In summary, none of the aforementioned publicly available documents address the issue that, during gas turbine operation, when the thin-walled structure of the gas turbine exhibits vibration risks, the vibration characteristics cannot be altered by adjusting the structure of the thin-walled components. Utility Model Content

[0007] Based on the above-mentioned technical problems, this utility model proposes a pressure vibration optimization device to solve the problem that when the thin-walled structure of the gas turbine is at risk of vibration during operation, the vibration characteristics cannot be changed by adjusting the structure of the thin-walled component.

[0008] To achieve the above objectives, this utility model proposes a pressure vibration optimization device.

[0009] A pressure vibration optimization device, comprising:

[0010] It includes two vertical guide rails, a horizontal guide rail, a mass block, multiple expandable components, and multiple elastic components. Each end of the horizontal guide rail is connected to one of the vertical guide rails, and the two vertical guide rails are arranged in parallel. The expandable components and elastic components are provided inside both the vertical guide rails and the horizontal guide rails, and the mass block is located on the horizontal guide rail.

[0011] Furthermore, the vertical guide rail includes a vertical groove, and the horizontal guide rail includes a horizontal groove. The openings of the vertical grooves of the two vertical guide rails are arranged opposite to each other to support the two ends of the horizontal guide rail.

[0012] Furthermore, the expandable component and the elastic component are respectively disposed at both ends of the vertical groove for controlling the movement of the transverse guide rail; the expandable component and the elastic component are respectively disposed at both ends of the transverse groove for controlling the movement of the mass block.

[0013] Furthermore, one end of the transverse guide rail is located between the expandable component and the elastic component inside the vertical groove; the mass block is located between the expandable component and the elastic component inside the transverse groove.

[0014] Furthermore, the mass block includes a through hole, which is adapted to the external structure of the transverse guide rail so that the mass block can reciprocate along the axial direction of the through hole on the transverse guide rail.

[0015] Furthermore, the vertical guide rail also includes blocking blocks, which are located at both ends of the vertical guide rail.

[0016] Furthermore, the expandable component includes a conduit for connecting to an external pressure chamber to regulate the pressure of the expandable component.

[0017] Furthermore, the inflatable component is a cylindrical airbag.

[0018] Furthermore, the elastic component is a spring.

[0019] Furthermore, the mass block is a cuboid or cube, with a mass of 0.5 kg to 5 kg.

[0020] Based on the above technical solution, this utility model has at least the following beneficial effects:

[0021] 1. This utility model proposes a pressure vibration optimization device, in which a mass block is driven by air pressure to move in real time along a transverse guide rail, forming an adjustable dynamic vibration absorber. When the gas turbine is in operation, the position change of the mass block can specifically offset the forced vibration energy of thin-walled components, such as turbine blades or combustion chamber liners, thereby increasing their amplitude attenuation rate. This dynamic adjustment mechanism breaks through the limitations of the traditional fixed counterweight method and is particularly suitable for suppressing broadband vibration caused by airflow excitation under varying operating conditions of the gas turbine, realizing online optimization of the vibration modes of thin-walled components.

[0022] 2. This utility model proposes a pressure vibration optimization device. When a vibration risk signal is received from a vibration measuring point during the operation of a gas turbine, the device can automatically adjust the participating mass and position of the vibrating component to match the vibration characteristics of the thin-walled structure to the optimal vibration state, thereby solving the vibration risk problem of thin-walled components during gas turbine operation.

[0023] 3. This utility model proposes a pressure vibration optimization device, which can reduce the vibration acceleration of components and reduce the destructive force of component vibration by adjusting the pressure of the air bag to change the position of the mass block without machine tripping or cylinder opening. At the same time, it can increase the frequency avoidance rate and reduce the risk of component resonance. This utility model has strong flexibility in solving component vibration problems. When combined with vibration measuring points, it can quickly find the optimal vibration location point. Attached Figure Description

[0024] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments and descriptions of this utility model are used to explain this utility model and do not constitute an undue limitation thereof. In the drawings:

[0025] Figure 1 A three-dimensional structural diagram of a pressure vibration optimization device according to one embodiment is shown;

[0026] The above figures include the following reference numerals:

[0027] 1. Vertical guide rail; 2. Horizontal guide rail; 3. Mass block; 4. Expandable component; 5. Elastic component;

[0028] 11. Vertical groove; 12. Horizontal groove; 31. Through hole; 41. Conduit. Detailed Implementation

[0029] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0030] The present invention will be further described in detail below with reference to specific embodiments. These embodiments should not be construed as limiting the scope of protection claimed by the present invention. The term "comprising" indicates the presence of a feature, but does not exclude the presence or addition of one or more other features. The terms "lateral," "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the purpose of description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0031] In this description, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0032] Example 1

[0033] This utility model proposes a pressure vibration optimization device, such as... Figure 1 As shown, it includes two vertical guide rails 1, a horizontal guide rail 2, a mass block 3, multiple expandable components 4, and multiple elastic components 5. Each end of the horizontal guide rail 2 is connected to one of the vertical guide rails 1, and the two vertical guide rails 1 are arranged in parallel. The expandable components 4 and the elastic components 5 are provided inside both the vertical guide rails 1 and the horizontal guide rail 2, and the mass block 3 is disposed on the horizontal guide rail 2.

[0034] Furthermore, the vertical guide rail 1 includes a vertical groove 11, and the horizontal guide rail 2 includes a horizontal groove 21. The two ends of the horizontal guide rail 2 are respectively disposed in a vertical groove 11 in a slidable manner.

[0035] Furthermore, the vertical groove 11 includes an expandable component 4 and an elastic component 5. The expandable component 4 and the elastic component 5 are respectively located at both ends of the vertical groove 11 and are respectively connected to the block blocks 12 on both sides of the vertical guide rail 1. One end of the transverse guide rail 2 is located between the expandable component 4 and the elastic component 5 inside the vertical groove 11, and is used to control the movement of the transverse guide rail 2.

[0036] Furthermore, the transverse groove 21 includes an expandable component 4 and an elastic component 5, and a mass block 3 is disposed between the expandable component 4 and the elastic component 5 to control the movement of the mass block 3.

[0037] Furthermore, the mass block 3 includes a through hole 31, which is adapted to the external structure of the transverse guide rail 2 so that the mass block 3 can reciprocate along the axial direction of the through hole 31 on the transverse guide rail 2.

[0038] Furthermore, the expandable component 4 includes a conduit 41 for connecting to an external pressure chamber to regulate the pressure of the expandable component 4.

[0039] Specifically, in this embodiment, the block 12 is provided with a through hole, through which the conduit 41 can be connected to the external pressure chamber.

[0040] Furthermore, the inflatable component 4 is a cylindrical airbag, and the elastic component 5 is a spring.

[0041] Furthermore, the mass block 3 is a cuboid with a mass of 1 kg.

[0042] Example 2

[0043] This utility model proposes a pressure vibration optimization device, including two vertical guide rails 1, a horizontal guide rail 2, a mass block 3, multiple expandable components 4, and multiple elastic components 5. Each end of the horizontal guide rail 2 is connected to one of the vertical guide rails 1, and the two vertical guide rails 1 are arranged in parallel. The expandable components 4 and the elastic components 5 are provided inside both the vertical guide rails 1 and the horizontal guide rail 2, and the mass block 3 is disposed on the horizontal guide rail 2.

[0044] Furthermore, the vertical guide rail 1 includes a vertical groove 11, and the horizontal guide rail 2 includes a horizontal groove 21. The two ends of the horizontal guide rail 2 are respectively disposed in a vertical groove 11 in a slidable manner.

[0045] Furthermore, the vertical groove 11 includes an expandable component 4 and an elastic component 5. The expandable component 4 and the elastic component 5 are respectively located at both ends of the vertical groove 11 and are respectively connected to the block blocks 12 on both sides of the vertical guide rail 1. One end of the transverse guide rail 2 is located between the expandable component 4 and the elastic component 5 inside the vertical groove 11, and is used to control the movement of the transverse guide rail 2.

[0046] Furthermore, the transverse groove 21 includes an expandable component 4 and an elastic component 5, and a mass block 3 is disposed between the expandable component 4 and the elastic component 5 to control the movement of the mass block 3.

[0047] Furthermore, the mass block 3 includes a through hole 31, which is adapted to the external structure of the transverse guide rail 2 so that the mass block 3 can reciprocate along the axial direction of the through hole 31 on the transverse guide rail 2.

[0048] Furthermore, the expandable component 4 includes a conduit 41 for connecting to an external pressure chamber to regulate the pressure of the expandable component 4.

[0049] Specifically, in this embodiment, the conduit 41 can extend laterally from the vertical groove 11 or the horizontal groove 21 to connect to the external pressure chamber.

[0050] Furthermore, the inflatable component 4 is a cylindrical airbag, and the elastic component 5 is a spring.

[0051] Furthermore, the mass block 3 is a cube with a mass of 3 kg, and in other embodiments it can also be 4 kg.

[0052] In summary, as can be seen from the above description, the embodiments of this utility model achieve the following technical effects:

[0053] 1. This utility model proposes a pressure vibration optimization device, in which a mass block is driven by air pressure to move in real time along a transverse guide rail, forming an adjustable dynamic vibration absorber. When the gas turbine is in operation, the position change of the mass block can specifically offset the forced vibration energy of thin-walled components, such as turbine blades or combustion chamber liners, thereby increasing their amplitude attenuation rate. This dynamic adjustment mechanism breaks through the limitations of the traditional fixed counterweight method and is particularly suitable for suppressing broadband vibration caused by airflow excitation under varying operating conditions of the gas turbine, realizing online optimization of the vibration modes of thin-walled components.

[0054] 2. This utility model proposes a pressure vibration optimization device. When a vibration risk signal is received from a vibration measuring point during the operation of a gas turbine, the device can automatically adjust the participating mass and position of the vibrating component to match the vibration characteristics of the thin-walled structure to the optimal vibration state, thereby solving the vibration risk problem of thin-walled components during gas turbine operation.

[0055] 3. This utility model proposes a pressure vibration optimization device, which can reduce the vibration acceleration of components and reduce the destructive force of component vibration by adjusting the pressure of the air bag to change the position of the mass block without machine tripping or cylinder opening. At the same time, it can increase the frequency avoidance rate and reduce the risk of component resonance. This utility model has strong flexibility in solving component vibration problems. When combined with vibration measuring points, it can quickly find the optimal vibration location point.

[0056] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

[0057] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0058] It should be noted that, in the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

Claims

1. A pressure vibration optimization device, characterized by, It includes two vertical guide rails (1), a horizontal guide rail (2), a mass block (3), multiple expandable components (4) and multiple elastic components (5). The two ends of the horizontal guide rail (2) are respectively connected to one of the vertical guide rails (1), and the two vertical guide rails (1) are arranged in parallel. The expandable components (4) and the elastic components (5) are provided inside the vertical guide rails (1) and the horizontal guide rails (2), and the mass block (3) is located on the horizontal guide rail (2).

2. The apparatus of claim 1, wherein, The vertical guide rail (1) includes a vertical groove (11), and the horizontal guide rail (2) includes a horizontal groove (21). The vertical grooves (11) of the two vertical guide rails (1) are arranged opposite to each other to support the two ends of the horizontal guide rail (2).

3. The apparatus according to claim 2, characterized in that, The expandable component (4) and the elastic component (5) are respectively disposed at both ends in the vertical groove (11) for controlling the movement of the transverse guide rail (2); The expandable component (4) and the elastic component (5) are respectively located at both ends of the transverse groove (21) for controlling the movement of the mass block (3).

4. The apparatus according to claim 2, characterized in that, One end of the transverse guide rail (2) is located between the expandable component (4) and the elastic component (5) inside the vertical groove (11); The mass block (3) is located between the expandable component (4) and the elastic component (5) inside the transverse groove (21).

5. The apparatus of claim 1, wherein The mass block (3) includes a through hole (31), The through hole (31) is adapted to the external structure of the transverse guide rail (2) so that the mass block (3) can reciprocate along the axial direction of the through hole (31) on the transverse guide rail (2).

6. The apparatus of claim 1, wherein The vertical guide rail (1) also includes a blocking block (12). The blocking block (12) is located at both ends of the vertical guide rail (1).

7. The apparatus of claim 1, wherein The expandable component (4) includes a conduit (41), The conduit (41) is used to connect to an external pressure chamber to regulate the pressure of the expandable component (4).

8. The apparatus according to claim 1, characterized in that, The inflatable component (4) is a cylindrical airbag.

9. The apparatus according to claim 1, characterized in that, The elastic component (5) is a spring.

10. The apparatus according to claim 1, characterized in that, The mass block (3) is a cuboid or cube with a mass of 0.5 kg to 5 kg.

Images