An integrated acoustic isolation device for a turbogenerator

Abstract

The application relates to the technical field of steam turbine generators, and particularly discloses an integrated sound insulation device of a steam turbine generator, which comprises a sound insulation cover shell; the sound insulation cover shell is arranged on the outer side of the steam turbine generator, and a shock absorption and noise reduction mechanism and a sound insulation mechanism are arranged in the sound insulation cover shell; the shock absorption and noise reduction mechanism comprises shock absorption cover plates arranged on the inner wall of the sound insulation cover shell, first horizontal shock absorption pieces arranged between two adjacent groups of the shock absorption cover plates, and end cover plates arranged at the front and rear ends of the steam turbine generator; the sound insulation mechanism comprises porous sound absorption plates arranged on the inner side of the sound insulation cover shell, vacuum partition plates arranged on the outer side of the porous sound absorption plates, and soundproof plates arranged on the outer side of the vacuum partition plates. The sound insulation device can realize all-around buffering and shock absorption of the steam turbine generator during the working process of the steam turbine generator, the sound insulation mechanism can play a role of noise elimination and interruption on the noise in the sound insulation cover shell, so that the purpose of noise reduction of the steam turbine generator is achieved.

Description

Technical Field

[0001] This invention relates to the field of steam turbine generator technology, specifically to an integrated sound insulation device for a steam turbine generator. Background Technology

[0002] Currently, the space between the turbine casing and the turbine body is relatively small in most turbine industries, resulting in limited functionality of the turbine casing and an inability to effectively reduce noise and vibration in turbine generators, thus making it impractical. Therefore, there is an urgent need for an integrated sound insulation device for turbine generators to improve the functionality and practicality of turbine casings. Summary of the Invention

[0003] The purpose of this invention is to provide an integrated sound insulation device for a steam turbine generator to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: an integrated sound insulation device for a steam turbine generator, comprising a sound insulation enclosure; the sound insulation enclosure is disposed on the outside of the steam turbine generator, and a vibration damping and noise reduction mechanism and a sound insulation mechanism are installed inside the sound insulation enclosure;

[0005] The vibration damping and noise reduction mechanism includes a vibration damping cover plate installed on the inner wall of the soundproof enclosure. A vertical vibration damping cavity is opened on the side of the vibration damping cover plate near the steam turbine generator, and a vertical vibration damping component is installed inside the vertical vibration damping cavity.

[0006] The vibration damping and noise reduction mechanism also includes a first horizontal vibration damping component installed between two adjacent sets of vibration damping covers, with both the left and right ends of the first horizontal vibration damping component connected to the vibration damping covers.

[0007] The vibration damping and noise reduction mechanism also includes end covers installed at both ends of the turbine generator. A horizontal damping cavity is provided on the side of the end cover facing the turbine generator, and a second horizontal damping component is installed inside the horizontal damping cavity.

[0008] The sound insulation mechanism includes a porous sound-absorbing panel installed inside the sound insulation enclosure, a vacuum partition plate installed on the outside of the porous sound-absorbing panel, and a sound-damping plate covering the outside of the vacuum partition plate.

[0009] Preferably, the vertical damping component includes an arc-shaped baffle installed inside the vertical damping cavity. The arc-shaped baffle is fitted to the outer wall of the steam turbine generator, and a vertical spring is connected between the outer circumferential wall of the arc-shaped baffle and the inner wall of the vertical damping cavity.

[0010] Preferably, the arc-shaped baffle is provided with connecting lugs at both ends, and the outer side wall of the steam turbine generator is provided with locking lugs that cooperate with the connecting lugs. The locking lugs and the connecting lugs are connected by a T-shaped slide rod.

[0011] Preferably, the locking lug has a horizontal sliding cavity, and the T-shaped slide rod is disposed inside the horizontal sliding cavity and is slidably connected to the horizontal sliding cavity from left to right.

[0012] Preferably, the damping cover includes an upper cover and a lower cover, which are respectively disposed at the upper and lower ends of the steam turbine generator, and the left and right ends of the second horizontal damping member are respectively connected to the upper cover and the lower cover.

[0013] Preferably, the first horizontal shock absorber includes a sliding block fixedly mounted on the outer side wall of the turbine generator. Horizontal springs are installed at both ends of the sliding block, with the end of the horizontal spring furthest from the sliding block fixed to the lower part of the upper cover plate and the upper part of the lower cover plate.

[0014] Preferably, a buffer slide is fixedly connected to one end of the horizontal spring near the sliding block, and the buffer slide is slidably connected to the sliding block up and down through a buffer slider.

[0015] Preferably, the second horizontal damping member includes an elastic protrusion installed inside the horizontal damping cavity, and the inner cavity of the elastic protrusion is filled with a high-resilience material.

[0016] Preferably, elastic corner protectors are provided on both the upper and lower inner walls of the horizontal damping cavity, and the elastic corner protectors are spaced apart from the corners of the turbine generator.

[0017] Preferably, the sound damping plate is fitted with a rigid shell, and a reinforcing rib is provided on the inner side of the rigid shell, with the reinforcing rib surrounding the sound damping plate.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] 1. The present invention provides an integrated sound insulation device for a steam turbine generator. The sound insulation device mainly consists of a sound insulation enclosure installed outside the steam turbine generator and a vibration damping and noise reduction mechanism inside the sound insulation enclosure. The vibration damping and buffering mechanism includes a vibration damping cover plate for vertical vibration damping of the steam turbine, a first horizontal vibration damping component and a second horizontal vibration damping component for horizontal vibration damping of the steam turbine generator, so as to achieve all-round buffering and vibration damping of the steam turbine generator during the operation of the steam turbine generator, thereby achieving the purpose of noise reduction of the steam turbine generator.

[0020] 2. The present invention provides an integrated sound insulation device for a steam turbine generator. The present invention also provides a sound insulation mechanism on the inner side of the sound insulation enclosure. The sound insulation mechanism mainly includes a porous sound-absorbing plate, a vacuum partition plate, a sound-absorbing plate and a rigid shell. The rigid shell is also provided with multiple reinforcing ribs inside, so that it can play a role in silencing and blocking noise inside the sound insulation enclosure, while ensuring the strength of the sound insulation enclosure itself and extending the service life of the equipment. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the specific structure of part A of the present invention;

[0023] Figure 3 This is a schematic diagram of the specific structure of the lower cover plate of the present invention;

[0024] Figure 4 This is a schematic diagram of the specific structure of the upper cover plate of the present invention;

[0025] Figure 5 This is a partial cross-sectional view of the soundproof enclosure of the present invention.

[0026] In the diagram: 1. Soundproof enclosure; 11. Perforated sound-absorbing panel; 12. Vacuum partition panel; 13. Sound-damping panel; 14. Rigid shell; 15. Reinforcing rib ring; 2. Steam turbine generator; 3. Vibration damping cover; 31. Upper cover; 32. Lower cover; 4. Vertical vibration damping cavity; 5. Vertical vibration damping component; 51. Arc-shaped baffle; 52. Vertical spring; 53. Connecting lug; 54. Locking lug; 55. T-shaped slide bar; 6. First horizontal vibration damping component; 61. Sliding block; 62. Horizontal spring; 63. Buffer slide; 64. Buffer slider; 7. End cover; 8. Horizontal vibration damping cavity; 9. Second horizontal vibration damping component; 91. Elastic protrusion; 92. High resilience material; 93. Elastic corner protector. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] In the description of this invention, it should be noted that the terms "vertical," "upper," "lower," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the 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 limitations on this invention.

[0029] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" 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 mechanical connection or an electrical 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 invention according to the specific circumstances.

[0030] The following is in conjunction with the appendix Figures 1-5 Any embodiment of the present invention will be described for further explanation:

[0031] Example 1: An integrated sound insulation device for a steam turbine generator includes a sound insulation enclosure 1; the sound insulation enclosure 1 covers the outside of the steam turbine generator 2, and a vibration damping and noise reduction mechanism is installed inside the sound insulation enclosure 1; the vibration damping and noise reduction mechanism includes a vibration damping plate 3 installed on the inner wall of the sound insulation enclosure 1, and a vertical vibration damping cavity 4 is opened on the side of the vibration damping plate 3 near the steam turbine generator 2, and a vertical vibration damping component 5 is installed inside the vertical vibration damping cavity 4;

[0032] As a preferred embodiment, the damping cover 3 includes an upper cover 31 and a lower cover 32, which are respectively disposed at the upper and lower ends of the steam turbine generator 2. The left and right ends of the second horizontal damping member 9 are respectively connected to the upper cover 31 and the lower cover 32.

[0033] In a preferred embodiment, the vertical damping component 5 includes an arc-shaped baffle 51 installed inside the vertical damping cavity 4. The arc-shaped baffle 51 is fitted to the outer wall of the steam turbine generator 2, and a vertical spring 52 is connected between the outer circumferential wall of the arc-shaped baffle 51 and the inner wall of the vertical damping cavity 4.

[0034] As a preferred embodiment, both ends of the arc-shaped baffle 51 are provided with connecting lugs 53, and the outer side wall of the steam turbine generator 2 is provided with locking lugs 54 that cooperate with the connecting lugs 53. The locking lugs 54 and the connecting lugs 53 are connected by a T-shaped slide rod 55.

[0035] In a preferred embodiment, the locking lug 54 has a horizontal sliding cavity, and the T-shaped slide rod 55 is disposed inside the horizontal sliding cavity and is slidably connected to the horizontal sliding cavity from left to right.

[0036] In this embodiment: when the turbine generator 2 shakes vertically, the turbine generator 2 slides upward or downward on the inner side of the upper cover plate 31 and the lower cover plate 32, thereby generating a certain squeezing force on the arc-shaped baffle 51 on its inner side. Since the arc-shaped baffle 51 is connected to the upper cover plate 31 and the lower cover plate 32 through the vertical spring 52, when the arc-shaped baffle 51 slides, under the action of the elasticity and reset performance of the vertical spring 52 itself, the purpose of shock absorption and buffering of the turbine generator 2 is achieved.

[0037] Example 2: Based on Example 1, the vibration damping and noise reduction mechanism also includes a first horizontal damping member 6 installed between two adjacent sets of damping cover plates 3, with both the left and right ends of the first horizontal damping member 6 connected to the damping cover plate 3.

[0038] As a preferred embodiment, the first horizontal damping member 6 includes a sliding block 61 fixedly installed on the outer side wall of the steam turbine generator 2. Horizontal springs 62 are installed at both ends of the sliding block 61. The end of the horizontal spring 62 away from the sliding block 61 is fixed to the lower part of the upper cover plate 31 and the upper part of the lower cover plate 32.

[0039] In a preferred embodiment, a buffer slide 63 is fixedly connected to one end of the horizontal spring 62 near the sliding block 61, and the buffer slide 63 is slidably connected to the sliding block 61 via a buffer slider 64.

[0040] In this embodiment: when the turbine generator 2 shakes horizontally, the turbine generator 2 drives the sliding block 61 to slide horizontally, so that the sliding block 61 exerts a certain squeezing force on the horizontal spring 62. After the horizontal spring 62 is subjected to pressure, it plays a role in shock absorption and buffering of the turbine generator 2 through its own elasticity and reset performance.

[0041] Example 3: Based on Examples 1-2, the vibration reduction and noise reduction mechanism also includes end cover plates 7 installed at both ends of the steam turbine generator 2. A horizontal vibration damping cavity 8 is provided on the side of the end cover plate 7 facing the steam turbine generator 2. A second horizontal vibration damping component 9 is installed inside the horizontal vibration damping cavity 8.

[0042] In a preferred embodiment, the second horizontal damping member 9 includes an elastic protrusion 91 installed inside the horizontal damping cavity 8, and the inner cavity of the elastic protrusion 91 is filled with a high-resilience material 92.

[0043] As a preferred embodiment, elastic corner protectors 93 are provided on both the upper and lower inner walls of the horizontal damping cavity 8, and the elastic corner protectors 93 are spaced apart from the corners of the turbine generator 2.

[0044] In this embodiment: when the steam turbine generator 2 slides horizontally, the steam turbine generator 2 slides horizontally, which in turn generates a certain compressive force on the elastic protrusion 91 and elastic corner protector 93 in the horizontal damping cavity 8. Since the elastic corner protector 93 and elastic protrusion 91 are both designed with highly elastic materials, they can effectively buffer and protect the steam turbine generator 2.

[0045] Example 4: Based on Examples 1-3, a sound insulation mechanism is installed inside the sound insulation enclosure 1. The sound insulation mechanism includes a porous sound-absorbing plate 11 installed inside the sound insulation enclosure 1, a vacuum partition plate 12 is provided on the outside of the porous sound-absorbing plate 11, and a sound-damping plate 13 is covered on the outside of the vacuum partition plate 12.

[0046] Furthermore, a rigid shell 14 is fitted around the sound-absorbing plate 13, and a reinforcing rib ring 15 is provided on the inner side of the rigid shell 14. The reinforcing rib ring 15 surrounds the sound-absorbing plate 13, which can effectively improve the strength of the sound insulation shell 1 itself and extend its service life.

[0047] In this embodiment: when the steam turbine generator 2 generates noise during operation, the porous sound-absorbing plate 11 absorbs the noise. When the noise enters the porous sound-absorbing plate 11, some of the noise is blocked and consumed within the porous sound-absorbing plate 11 by the vacuum partition plate 12, and some of the noise is cut off by the sound-blocking plate 13 after passing through the vacuum partition plate 12, thus blocking the transmission of noise and reducing noise pollution.

[0048] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An integrated sound insulation device for a steam turbine generator, characterized in that: Includes a soundproof enclosure (1); the soundproof enclosure (1) is installed on the outside of the steam turbine generator (2), and the soundproof enclosure (1) is equipped with a vibration damping and noise reduction mechanism and a sound insulation mechanism. The vibration reduction and noise reduction mechanism includes a vibration damping cover plate (3) installed on the inner wall of the soundproof cover (1). A vertical vibration damping cavity (4) is opened on the side of the vibration damping cover plate (3) near the steam turbine generator (2). A vertical vibration damping component (5) is installed inside the vertical vibration damping cavity (4). The vibration damping and noise reduction mechanism also includes a first horizontal damping component (6) installed between two adjacent sets of damping cover plates (3), and both the left and right ends of the first horizontal damping component (6) are connected to the damping cover plate (3); The vibration reduction and noise reduction mechanism also includes end cover plates (7) installed at both ends of the steam turbine generator (2). A horizontal damping cavity (8) is provided on the side of the end cover plate (7) facing the steam turbine generator (2). A second horizontal damping component (9) is installed inside the horizontal damping cavity (8). The sound insulation mechanism includes a porous sound-absorbing plate (11) installed inside the sound insulation shell (1), a vacuum partition plate (12) is provided on the outside of the porous sound-absorbing plate (11), and a sound-absorbing plate (13) is wrapped around the outside of the vacuum partition plate (12). The vertical damping component (5) includes an arc-shaped baffle (51) installed inside the vertical damping cavity (4). The arc-shaped baffle (51) is fitted to the outer wall of the steam turbine generator (2). A vertical spring (52) is connected between the outer circumferential wall of the arc-shaped baffle (51) and the inner wall of the vertical damping cavity (4). Both ends of the arc-shaped baffle (51) are provided with connecting lugs (53), and the outer side wall of the steam turbine generator (2) is provided with locking lugs (54) that cooperate with the connecting lugs (53). The locking lugs (54) and the connecting lugs (53) are connected by a T-shaped slide rod (55). The locking lug (54) has a horizontal sliding cavity, and the T-shaped slide rod (55) is set inside the horizontal sliding cavity and is slidably connected to the horizontal sliding cavity from left to right. The shock absorber cover (3) includes an upper cover (31) and a lower cover (32). The upper cover (31) and the lower cover (32) are respectively installed at the upper and lower ends of the steam turbine generator (2). The left and right ends of the second horizontal shock absorber (9) are respectively connected to the upper cover (31) and the lower cover (32). The first horizontal shock absorber (6) includes a sliding block (61) fixedly installed on the outer side wall of the steam turbine generator (2). Horizontal springs (62) are installed at both ends of the sliding block (61). The end of the horizontal spring (62) away from the sliding block (61) is fixed to the lower part of the upper cover plate (31) and the upper part of the lower cover plate (32).

2. The integrated sound insulation device for a steam turbine generator according to claim 1, characterized in that: The horizontal spring (62) is fixedly connected to a buffer slide (63) at one end near the sliding block (61). The buffer slide (63) is slidably connected to the sliding block (61) up and down through a buffer slider (64).

3. The integrated sound insulation device for a steam turbine generator according to claim 1, characterized in that: The second horizontal damping member (9) includes an elastic protrusion (91) installed inside the horizontal damping cavity (8), and the inner cavity of the elastic protrusion (91) is filled with a high resilience material (92).

4. The integrated sound insulation device for a steam turbine generator according to claim 1, characterized in that: The upper and lower inner walls of the horizontal damping cavity (8) are provided with elastic corner guards (93), and the elastic corner guards (93) are spaced apart from the corners of the steam turbine generator (2).

5. The integrated sound insulation device for a steam turbine generator according to claim 1, characterized in that: The sound-absorbing plate (13) is fitted with a rigid shell (14) on the outside, and a reinforcing rib (15) is provided on the inner side of the rigid shell (14), and the reinforcing rib (15) surrounds the sound-absorbing plate (13).

Images