A noise reduction device for a hydropower station power house

Abstract

The application discloses a kind of for water and electricity station power plant noise reduction device, it is related to noise reduction device technical field, including calcium silicate board, the bottom of the calcium silicate board is provided with side plate, the bottom of the inner wall of the side plate is provided with grid plate, the outer wall of the side plate is provided with several positioning assembly for limiting grid plate, the side plate is provided with sound insulation layer, the bottom of the calcium silicate board is provided with two plug-in boards, the side wall of the plug-in board is movably provided with several clamping assemblies, the bottom of the calcium silicate board is provided with two mounting assemblies.The installation of the two can be realized by aligning the plug-in board with the mounting assembly, manually pressing the calcium silicate board, the clamping installation mode of the mounting assembly and the plug-in board is installed, the installation convenience is improved, the installation time is shortened and the labor intensity of manual installation is reduced, and after installation, it has good stability, when maintaining subsequently, it is also convenient to disassemble and replace the sound insulation layer.

Description

Technical Field

[0001] This invention relates to the field of noise reduction device technology, and in particular to a noise reduction device for hydropower plant buildings. Background Technology

[0002] The underground power plant is an important component of a hydropower station. It is usually located inside the mountain near the dam and is used to house the turbine generator units. During operation, the underground power plant may generate significant noise, which can affect the environment and the physical and mental health of the staff.

[0003] During the factory design phase, sound insulation materials and structures can be used to reduce noise transmission. However, sound insulation materials require regular maintenance and replacement. The underground factory space is relatively narrow, and large machinery is difficult to enter. Therefore, the installation and dismantling of sound insulation materials need to be done manually. However, the splicing and assembly of sound insulation materials is relatively troublesome, and subsequent maintenance of the sound insulation materials is also quite troublesome. Summary of the Invention

[0004] To address the aforementioned issues in plant design, sound insulation materials and structures can be used to reduce noise transmission. However, these materials require regular maintenance and replacement. Underground plant spaces are often cramped, making it difficult for large machinery to access them. Consequently, the installation and dismantling of sound insulation materials require manual labor. Furthermore, the assembly and subsequent maintenance of sound insulation materials can be quite troublesome. Therefore, this invention provides a noise reduction device for hydropower plant buildings.

[0005] This invention provides a noise reduction device for hydropower plant buildings, employing the following technical solution: A noise reduction device for a hydropower plant includes a calcium silicate board, a side plate at the bottom of the calcium silicate board, a grid plate at the bottom of the inner wall of the side plate, a plurality of positioning components for limiting the grid plate at the outer wall of the side plate, a sound insulation layer inside the side plate, two insert plates symmetrically arranged at the bottom of the calcium silicate board, a plurality of snap-fit ​​components movably arranged on the side wall of the insert plates, and two mounting components symmetrically arranged at the bottom of the calcium silicate board. The snap-fit ​​components are snap-fitted into the mounting components, and the mounting components have slots adapted to the snap-fit ​​components. Two protrusions for limiting the snap-fit ​​components are symmetrically arranged in the slots.

[0006] Optionally, in the above-mentioned noise reduction device for hydropower plant, the number of calcium silicate boards is several, and a sealing assembly is provided at the connection between two adjacent calcium silicate boards. The sealing assembly includes a panel, a U-shaped rubber strip, a sealing strip, and an echo strip. The panel is located on top of the echo strip, the echo strip is located between two adjacent calcium silicate boards, the sealing strip is located on the outer wall of the echo strip, and the U-shaped rubber strip is located at the bottom of the panel and sleeved on the echo strip.

[0007] Optionally, in the above-mentioned noise reduction device for hydropower plant, the mounting component includes a mounting strip and a base plate. Two protruding strips are symmetrically arranged on the inner sidewall of the mounting strip. The mounting strip is fixedly arranged on the top surface of the base plate. The base plate is installed on the wall of the plant. The base plate has a plurality of first threaded connection holes. One end of the mounting component is a male head, and the other end of the mounting component is a female head. The male end of the mounting component includes two connecting blocks and a plug-in block. Both connecting blocks and plug-in blocks are fixedly disposed at one end of the mounting strip, with the connecting blocks above the plug-in blocks. The female end of the mounting component includes a connecting groove and a plug-in hole. Both connecting grooves and plug-in holes are opened at the other end of the mounting strip. The inner bottom wall of the connecting groove and the connecting block are each provided with a second threaded connecting hole. The position of the connecting block corresponds to the position of the connecting groove, and the position of the plug-in block corresponds to the position of the plug-in hole.

[0008] Optionally, in the above-mentioned noise reduction device for hydropower plant, the positioning component includes a pin, a limiting plate and a first spring. The pin is movably inserted into the side wall of the side plate, and the limiting plate is fixedly installed at the end of the pin that extends out of the side plate. The limiting plate is connected to the side wall of the side plate by the first spring.

[0009] Optionally, in the above-mentioned noise reduction device for hydropower plant buildings, the sound insulation layer includes a protective plate, sound-absorbing foam, a sound insulation board, vibration-damping rubber, a sealing board, an air-barrier layer, and an inner lining plate. The protective plate is disposed on the outermost layer of the inner wall of the side plate, the sound-absorbing foam is disposed at the bottom of the protective plate, the sound insulation board is disposed at the bottom of the sound-absorbing foam, the vibration-damping rubber is disposed at the bottom of the sound insulation board, the sealing board is disposed at the bottom of the vibration-damping rubber, the air-barrier layer is disposed at the bottom of the sealing board, and the inner lining plate is disposed at the bottom of the air-barrier layer.

[0010] Optionally, in the above-mentioned noise reduction device for hydropower plant, the side wall of the insert plate is provided with a sliding groove, the snap-fit ​​assembly includes a protruding plate, a plurality of sliders and a second spring, the side wall of the protruding plate is provided with a protrusion adapted to the protruding strip, the plurality of sliders are all disposed on the side wall of the protruding plate, the sliders are located in the sliding groove and slide in cooperation with the inner wall of the sliding groove, and the second spring is disposed on the inner wall of the protruding plate.

[0011] Optionally, in the above-mentioned noise reduction device for hydropower plant, the top of the calcium silicate board is provided with a plurality of fixing buttons arranged in a rectangular array.

[0012] Optionally, in the above-mentioned noise reduction device for hydropower plant, a sound-absorbing hole arranged in a rectangular array is provided on the calcium silicate board.

[0013] In summary, the present invention has at least one of the following beneficial effects: The installation can be completed by manually pressing the calcium silicate board after aligning the insert plate with the mounting component. The snap-fit ​​installation method between the mounting component and the insert plate improves the ease of installation, shortens the installation time, reduces the labor intensity of manual installation, and provides good stability after installation. It also makes it easy to disassemble and replace the sound insulation layer during subsequent maintenance. By positioning the mesh panel with the positioning components, the mesh panel can firmly lock the sound insulation layer inside the side panel. The installation can be completed simply by manually pressing the mesh panel. The installation process is simple, convenient, and improves installation efficiency. The sealing components improve the sealing performance at the joints of the calcium silicate boards, while the snap-fit ​​method is convenient and quick. The U-shaped rubber strip and the sealing strip provide a double sealing effect, improving both sealing performance and noise reduction. Furthermore, the multiple layers of sound insulation materials arranged sequentially within the sound insulation layer maximize the noise reduction effect. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a bottom-view structural diagram of the present invention; Figure 3 This is a schematic diagram of the structure of the mounting component of the present invention; Figure 4 This is a schematic diagram of the male connector of the mounting component of the present invention; Figure 5 This is a schematic diagram of the structure of the mounting component female connector of the present invention; Figure 6 This is a schematic diagram of the structure of the insert plate of the present invention; Figure 7 This is a schematic diagram of the slide groove of the present invention; Figure 8 This is a schematic diagram of the snap-fit ​​assembly of the present invention; Figure 9 This is a schematic diagram of the positioning component of the present invention; Figure 10 This is a schematic diagram of the sealing assembly of the present invention; Figure 11 This is a schematic diagram of the sound insulation layer of the present invention.

[0015] In the diagram: 1. Calcium silicate board; 101. Fixing button; 102. Sound-absorbing hole; 2. Side plate; 3. Mesh plate; 4. Positioning component; 41. Pin; 42. Limiting plate; 43. First spring; 5. Sound insulation layer; 51. Protective plate; 52. Sound-absorbing foam; 53. Sound insulation board; 54. Vibration damping rubber; 55. Sealing board; 56. Air barrier layer; 57. Inner lining plate; 6. Mounting component; 61. Mounting strip; 62. Base plate; 63. Connecting block; 64. Insertion block; 65. Connecting groove; 66. Insertion hole; 7. Insert plate; 70. Snap-fit ​​component; 71. Protruding plate; 72. Slider; 73. Second spring; 74. Slide groove; 8. Protruding strip; 9. Sealing component; 91. Panel; 92. U-shaped rubber strip; 93. Sealing strip; 94. Echo strip. Detailed Implementation

[0016] The following is in conjunction with the appendix Figures 1-11 The present invention will be described in further detail below.

[0017] Please refer to the attached diagram in the instruction manual. Figures 1-11 An embodiment of the present invention provides a noise reduction device for a hydropower plant, comprising a calcium silicate board 1, a plurality of fixing buttons 101 arranged in a rectangular array on the top of the calcium silicate board 1, and a sound-absorbing hole 102 arranged in a rectangular array on the calcium silicate board 1.

[0018] A side plate 2 is provided at the bottom of the calcium silicate board 1. A grid plate 3 is provided at the bottom of the inner wall of the side plate 2. Several positioning components 4 for limiting the grid plate 3 are provided on the outer wall of the side plate 2. The positioning components 4 include a pin 41, a limiting plate 42 and a first spring 43. The pin 41 is movably inserted into the side wall of the side plate 2. The limiting plate 42 is fixedly provided at the end of the pin 41 that extends out of the side plate 2. The limiting plate 42 is connected to the side wall of the side plate 2 by the first spring 43. When the grid plate 3 presses the pin 41, the inclined top of the pin 41 guides the grid plate 3 to the bottom of the pin 41. With the elastic force of the first spring 43, the grid plate 3 is positioned and limited, thus quickly fixing the sound insulation layer 5.

[0019] A sound insulation layer 5 is provided inside the side panel 2. The sound insulation layer 5 includes a protective plate 51, sound-absorbing foam 52, sound insulation board 53, vibration damping rubber 54, sealing board 55, air barrier layer 56, and inner lining plate 57. The protective plate 51 is located on the outermost layer of the inner wall of the side panel 2. The sound-absorbing foam 52 is located at the bottom of the protective plate 51. The sound insulation board 53 is located at the bottom of the sound-absorbing foam 52. The vibration damping rubber 54 is located at the bottom of the sound insulation board 53. The sealing board 55 is located at the bottom of the vibration damping rubber 54. The air barrier layer 56 is located at the bottom of the sealing board 55. The inner lining plate 57 is located at the bottom of the air barrier layer 56. The outermost layer, plate 51, protects the sound insulation material from mechanical damage and environmental factors. The sound-absorbing foam 52 absorbs sound wave energy and reduces sound wave reflection. The sound insulation plate 53 effectively isolates the propagation of sound waves. The vibration-damping rubber 54 reduces the impact of vibration on the sound insulation effect. The sealing board 55 prevents sound waves from leaking through gaps. The air barrier layer 56 prevents noise from being transmitted through the air. The innermost layer, lining plate 57, further absorbs and isolates noise. The multiple layers of sound insulation material significantly improve the sound insulation effect, reduce the vibration propagation and penetration of sound, and achieve noise reduction.

[0020] Two insert plates 7 are symmetrically arranged at the bottom of the calcium silicate board 1. Several snap-fit ​​components 70 are movably arranged on the side wall of the insert plates 7. Two mounting components 6 are symmetrically arranged at the bottom of the calcium silicate board 1. The snap-fit ​​components 70 are snap-fitted into the mounting components 6. The mounting components 6 have slots that are compatible with the snap-fit ​​components 70. It should be noted that during the installation process, before the installation begins, the calcium silicate board 1 is flipped over. The installer places the sound insulation material in the sound insulation layer 5 into the inner cavity of the side plate 2 according to the arrangement order. After placement, the mesh plate 3 is closed. At this time, the positioning component 4 limits the mesh plate 3, so that the sound insulation layer 5 located in the side plate 2 can be stably filled through the seal of the mesh plate 3. Compared with the traditional filling method, this method is more efficient. This filling method is simple and quick, and after filling, the sound insulation layer 5 can be stably located inside the side plate 2 without falling off or loosening, which improves the sealing and sound insulation effect. It also has high filling efficiency and can shorten the installation time. After installation, after aligning the two insert plates 7 with the installation component 6, manually press the calcium silicate board 1 so that the insert plates 7 and the installation component 6 can be snapped together. This installation method has high installation efficiency, which can improve the installation efficiency when installing in a small space in the underground power plant. It can also facilitate and quickly disassemble the equipment during later maintenance. The installation component 6 is pre-drilled in the wall of the power plant and installed with expansion bolts to improve the firmness after installation.

[0021] Two symmetrical protrusions 8 for limiting the engagement assembly 70 are arranged in the slot. A groove 74 is provided on the side wall of the insert plate 7. The engagement assembly 70 includes a protruding plate 71, several sliders 72, and a second spring 73. The side wall of the protruding plate 71 has protrusions that match the protruding strips 8. Several sliders 72 are all located on the side wall of the protruding plate 71, and are located within the groove 74 and slide in cooperation with the inner wall of the groove 74. The second spring 73 is located on the inner wall of the protruding plate 71. The connection between the insert plate 7 and the mounting assembly 6 is achieved through elastic engagement, reducing installation difficulty and shortening installation time. The insert plate 7 is engaged with the mounting strip 61. The limited distance of the grooves is mainly to allow the raised plate 71 to extend at both ends when squeezed by the two raised strips 8, thus preventing breakage due to excessive material compression and providing extension protection. The limited distance of the grooves on the insert plate 7 is also mainly to allow the raised plate 71 to extend at both ends when squeezed by the two raised strips 8, thus preventing breakage due to excessive material compression and providing extension protection. The second spring 73 mainly provides elastic support for the return of the raised plate 71, improving the service life of the raised plate 71 and reducing the probability of excessive fatigue breakage.

[0022] Mounting component 6 includes mounting strip 61 and base plate 62. Two protruding strips 8 are symmetrically arranged on the inner side wall of mounting strip 61. Mounting strip 61 is fixedly mounted on the top surface of base plate 62. Base plate 62 is mounted on the wall of the factory building. Several first threaded connection holes are opened on base plate 62. One end of mounting component 6 is a male head and the other end of mounting component 6 is a female head. The male end of the mounting component 6 includes two connecting blocks 63 and a plug-in block 64. Both connecting blocks 63 and plug-in blocks 64 are fixedly mounted on one end of the mounting strip 61. The connecting blocks 63 are above the plug-in blocks 64. The female end of the mounting component 6 includes a connecting groove 65 and a plug-in hole 66. Both connecting grooves 65 and plug-in holes 66 are opened at the other end of the mounting strip 61. The inner bottom wall of the connecting groove 65 and the connecting block 63 are both provided with second threaded connecting holes. The position of the connecting block 63 corresponds to the position of the connecting groove 65, and the position of the plug-in block 64 corresponds to the position of the plug-in hole 66.

[0023] It should be noted that when the calcium silicate board 1 is manually pressed, the insert plate 7 is inserted into the inner cavity of the mounting strip 61. Since the protruding plate 71 is made of metal and has a certain degree of ductility, it can be reset after passing through the protruding strip 8 when inserted into the mounting strip 61. The connecting block 63 is placed into the connecting groove 65 and connected by bolts. Simultaneously, the insert block 64 is inserted into the insert hole 66, which can improve the stability of the connection. The male and female connection method can improve the installation efficiency and facilitate transportation to smaller spaces, with high flexibility.

[0024] There are several calcium silicate boards 1. A sealing component 9 is provided at the connection between two adjacent calcium silicate boards 1. There is a connection seam at the connection between two adjacent calcium silicate boards 1, and the sealing component 9 is located in the connection seam. The sealing component 9 includes a panel 91, a U-shaped rubber strip 92, a sealing strip 93, and an echo strip 94. The panel 91 is located on top of the echo strip 94, the echo strip 94 is located between two adjacent calcium silicate boards 1, the sealing strip 93 is located on the outer wall of the echo strip 94, and the U-shaped rubber strip 92 is located at the bottom of the panel 91 and is sleeved on the echo strip 94. When there are gaps at the connection between multiple calcium silicate boards 1 that affect the sound insulation effect, the echo strip 94 is inserted into the connection gap. When the sealing strip 93 abuts against the calcium silicate boards 1 on both sides, it plays a role in connecting and fixing and improving the sealing effect. The arc-shaped design of the inner top wall of the echo strip 94 can effectively reflect the sound waves transmitted by the wall. In addition, the U-shaped rubber strip 92, together with the sealing strip 93, can increase the sound insulation effect and improve the airtightness.

[0025] Working Principle: When using this noise reduction device for hydropower plant buildings, before installation begins, the calcium silicate board 1 is flipped over. The installers then place the sound insulation material from the sound insulation layer 5 into the inner cavity of the side panel 2 according to the arrangement order. After placement, the mesh plate 3 is closed. At this time, the positioning component 4 limits the mesh plate 3, ensuring that the sound insulation layer 5 within the side panel 2 is stably filled through the seal of the mesh plate 3. Compared to traditional filling methods, this method is simpler and faster, and after filling, the sound insulation layer 5 remains stably located within the side panel 2 without falling off or loosening, thus improving sealing. It has good sound insulation and filling efficiency, which can shorten the installation time. After installation, after aligning the two insert plates 7 with the installation component 6, manually press the calcium silicate board 1 so that the insert plates 7 and the installation component 6 can be snapped together. This installation method has high installation efficiency, which can improve the installation efficiency when installing in a small space in the underground power plant. It can also facilitate and quickly disassemble the work during later maintenance. The installation component 6 is pre-drilled in the wall of the power plant and installed with expansion bolts to improve the firmness after installation.

[0026] The above are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A noise reduction device for a hydropower plant, comprising a calcium silicate board (1), characterized in that: The calcium silicate board (1) has a side plate (2) at its bottom, a grid plate (3) at the bottom of the inner wall of the side plate (2), and a number of positioning components (4) for limiting the grid plate (3) at the outer wall of the side plate (2). A sound insulation layer (5) is provided inside the side plate (2). Two insert plates (7) are symmetrically arranged at the bottom of the calcium silicate board (1). A number of snap-fit ​​components (70) are movably arranged on the side wall of the insert plate (7). Two mounting components (6) are symmetrically arranged at the bottom of the calcium silicate board (1). The snap-fit ​​component (70) is snap-fitted into the mounting component (6). The mounting component (6) has a slot adapted to the snap-fit ​​component (70). Two protrusions (8) for limiting the snap-fit ​​component (70) are symmetrically arranged in the slot.

2. The noise reduction device for hydropower plant buildings according to claim 1, characterized in that: The number of calcium silicate boards (1) is several. A sealing component (9) is provided at the connection between two adjacent calcium silicate boards (1). The sealing component (9) includes a panel (91), a U-shaped rubber strip (92), a sealing strip (93), and an echo strip (94). The panel (91) is located on the top of the echo strip (94). The echo strip (94) is located between two adjacent calcium silicate boards (1). The sealing strip (93) is located on the outer wall of the echo strip (94). The U-shaped rubber strip (92) is located at the bottom of the panel (91) and is fitted onto the echo strip (94).

3. The noise reduction device for hydropower plant buildings according to claim 1, characterized in that: The mounting component (6) includes a mounting strip (61) and a base plate (62). Two protruding strips (8) are symmetrically arranged on the inner sidewall of the mounting strip (61). The mounting strip (61) is fixedly arranged on the top surface of the base plate (62). The base plate (62) is installed on the wall of the factory building. The base plate (62) has several first threaded connection holes. One end of the mounting component (6) is a male head, and the other end of the mounting component (6) is a female head. The male end of the mounting component (6) includes two connecting blocks (63) and a plug-in block (64). The two connecting blocks (63) and the plug-in block (64) are fixedly disposed at one end of the mounting strip (61). The connecting blocks (63) are above the plug-in blocks (64). The female end of the mounting component (6) includes a connecting groove (65) and a plug-in hole (66). The two connecting grooves (65) and the plug-in hole (66) are both opened at the other end of the mounting strip (61). The inner bottom wall of the connecting groove (65) and the connecting block (63) are both provided with a second threaded connecting hole. The position of the connecting block (63) corresponds to the position of the connecting groove (65), and the position of the plug-in block (64) corresponds to the position of the plug-in hole (66).

4. The noise reduction device for hydropower plant buildings according to claim 1, characterized in that: The positioning component (4) includes a pin (41), a limiting plate (42) and a first spring (43). The pin (41) is movably inserted into the side wall of the side plate (2). The limiting plate (42) is fixedly disposed at one end of the pin (41) extending out of the side plate (2). The limiting plate (42) is connected to the side wall of the side plate (2) by the first spring (43).

5. The noise reduction device for hydropower plant buildings according to claim 1, characterized in that: The sound insulation layer (5) includes a protective plate (51), sound-absorbing foam (52), sound insulation board (53), vibration damping rubber (54), sealing board (55), air barrier layer (56), and inner lining board (57). The protective plate (51) is located on the outermost layer of the inner wall of the side plate (2). The sound-absorbing foam (52) is located at the bottom of the protective plate (51). The sound insulation board (53) is located at the bottom of the sound-absorbing foam (52). The vibration damping rubber (54) is located at the bottom of the sound insulation board (53). The sealing board (55) is located at the bottom of the vibration damping rubber (54). The air barrier layer (56) is located at the bottom of the sealing board (55). The inner lining board (57) is located at the bottom of the air barrier layer (56).

6. The noise reduction device for hydropower plant buildings according to claim 3, characterized in that: The side wall of the insert plate (7) is provided with a sliding groove (74). The snap-fit ​​assembly (70) includes a protruding plate (71), a plurality of sliders (72) and a second spring (73). The side wall of the protruding plate (71) is provided with a protrusion that matches the protruding strip (8). The plurality of sliders (72) are all disposed on the side wall of the protruding plate (71). The sliders (72) are located in the sliding groove (74) and slide in cooperation with the inner wall of the sliding groove (74). The second spring (73) is disposed on the inner wall of the protruding plate (71).

7. The noise reduction device for hydropower plant buildings according to claim 1, characterized in that: The top of the calcium silicate board (1) is provided with a plurality of fixing buttons (101) arranged in a rectangular array.

8. The noise reduction device for hydropower plant buildings according to claim 1, characterized in that: The calcium silicate board (1) has a sound-absorbing hole (102) arranged in a rectangular array.

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