Acoustic enclosure

Abstract

The invention discloses a sound insulation housing, and relates to the technical field of sound insulation of marine diesel engines. The plurality of top wall plates are sequentially and tightly arranged at the top of the main body frame, the top wall plates are connected with the main body frame through top connecting pieces, and each top wall plate can be detached; the plurality of side wall plates are sequentially and annularly arranged on the side edge of the main body frame, the side wall plates are connected with the main body frame through side connecting pieces, and each side wall plate can be detached; the sound insulation assemblies are fixedly arranged on the inner side of the top wall plate and the inner side of the side wall plate correspondingly. The acoustic enclosure provided by the invention is convenient to disassemble, daily maintenance work of the marine diesel engine is facilitated, and the maintenance time and the maintenance cost are reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of sound insulation for marine diesel engines, and particularly to a sound insulation housing. Background Art

[0002] With the rapid development of the marine diesel engine industry, the number of currently operating marine diesel engines has increased exponentially. Marine diesel engines generate significant noise during operation, which not only affects the working environment of the crew but may also interfere with marine life. Therefore, developing an effective sound insulation housing is of great significance for improving the noise problem of marine diesel engines. Existing sound insulation housings have an integral structure, which is inconvenient for disassembly and assembly. Since marine diesel engines need to be regularly maintained, with the traditional sound insulation housing structure, the disassembly and assembly process is cumbersome when the marine diesel engine is repaired and maintained, increasing the maintenance time and resulting in low efficiency.

[0003] Therefore, it is necessary to design a sound insulation housing that is convenient to disassemble, facilitating the daily maintenance of marine diesel engines and reducing the maintenance time and cost. Summary of the Invention

[0004] The object of the present invention is to provide a sound insulation housing to solve the problems existing in the above-mentioned prior art, which is convenient to disassemble, facilitating the daily maintenance of marine diesel engines and reducing the maintenance time and cost.

[0005] To achieve the above object, the present invention provides the following solution: The present invention provides a sound insulation housing, comprising: a main body frame; a top wall plate, a plurality of the top wall plates are sequentially and closely arranged on the top of the main body frame, the top wall plate is connected to the main body frame through a top connecting member, and each of the top wall plates can be disassembled; a side wall plate, a plurality of the side wall plates are sequentially arranged around the side of the main body frame, the side wall plate is connected to the main body frame through a side connecting member, and each of the side wall plates can be disassembled; a sound insulation component, which is respectively fixed on the inner side of the top wall plate and the inner side of the side wall plate. The sound insulation housing of the present invention has a split structure. A plurality of detachable top wall plates are sequentially arranged on the top of the main body frame, and a plurality of detachable side wall plates are sequentially arranged on the side wall of the main body frame. When overhauling the internal marine diesel engine, only the top wall plate or the side wall plate at the position to be overhauled needs to be disassembled, which is convenient for disassembly and assembly and reduces the maintenance time.

[0006] Preferably, the main body frame includes a bottom cross beam, a top cross beam and vertical beams. The top cross beam and the bottom cross beam are arranged in parallel, and a plurality of the vertical beams arranged vertically are fixedly connected between the top cross beam and the bottom cross beam; the top wall plates are sequentially laid on the top cross beam, the side wall plates are connected to the vertical beams, and a sealing is provided between the top of the side wall plate and the top cross beam, and a sealing is provided between the bottom of the side wall plate and the bottom cross beam.

[0007] Preferably, the top crossbeam includes a first connecting rod and a second connecting rod. A plurality of the first connecting rods are arranged in parallel in sequence. One end of each of the plurality of first connecting rods is fixedly connected by one of the second connecting rods, and the other ends of the plurality of first connecting rods are fixedly connected by the other second connecting rod; the bottom crossbeam has the same structure as the top crossbeam; a vertical beam is connected between the second connecting rod of the top crossbeam and the second connecting rod of the bottom crossbeam on the same side.

[0008] Preferably, a top wall plate is provided between two adjacent first connecting rods of the top crossbeam, and a side wall plate is provided between two adjacent vertical beams.

[0009] Preferably, the top wall plate includes an outer plate. A sound insulation component is fixedly provided inside the outer plate. A closing plate perpendicular to the outer plate is provided at the end of the sound insulation component. One end of the closing plate is fixedly connected to the outer plate. An extension plate is integrally formed at the end of the outer plate. The inner side of the extension plate is connected to the corresponding top crossbeam; the top connecting member includes a pressing plate fixedly connected to the top crossbeam, and the end of the pressing plate abuts against the outer side of the corresponding extension plate.

[0010] Preferably, the top wall plate further includes a perforated plate. A plurality of holes are formed in the perforated plate, and the perforated plate is fixedly connected to the side of the sound insulation component away from the outer plate.

[0011] Preferably, the side connecting member includes a door lock. One side of the side wall plate is hinged to the adjacent vertical beam, and the other side of the side wall plate is fixedly connected to the adjacent vertical beam through the door lock; a sealing strip is provided between two adjacent side wall plates.

[0012] Preferably, a right-angle rubber strip is provided inside the extension plate, and the inner side of the extension plate is hermetically connected to the corresponding top crossbeam through the right-angle rubber strip.

[0013] Preferably, the sound insulation component includes a honeycomb aluminum plate, a damping coating, an intermediate partition board and glass wool. One side of the honeycomb aluminum plate is connected to the inner side of the top wall plate or the inner side of the side wall plate. The damping coating and the intermediate partition board are sequentially provided on the other side of the honeycomb aluminum plate. Glass wool is filled between the inner side of the intermediate partition board and the damping coating and on the outer side of the intermediate partition board.

[0014] Preferably, a handle is fixedly provided on the outer side of the top wall plate; an observation window is provided on the side wall plate, and the observation window is made of double-layer tempered glass.

[0015] The present invention has achieved the following technical effects compared with the prior art: The sound insulation housing of the present invention is a split structure. Multiple detachable top wall plates are arranged in sequence on the top of the main frame, and multiple detachable side wall plates are arranged in sequence on the side walls of the main frame. When overhauling the marine diesel engine inside, only the top wall plate or side wall plate at the position to be overhauled needs to be disassembled, which is convenient for disassembly and assembly and reduces the maintenance time. Brief Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0017] Figure 1 is an isometric view of the sound insulation housing in one or some embodiments of the present invention; Figure 2 is a front view of the sound insulation housing in one or some embodiments of the present invention; Figure 3 is a top view of the sound insulation housing in one or some embodiments of the present invention; Figure 4 is Figure 3 the A-A cross-sectional view of Figure 5 is a schematic diagram of the frame connection of the sound insulation housing in one or some embodiments of the present invention; Figure 6 is the present invention Figure 4 the partial enlarged schematic view at A1 of Figure 7 is a schematic diagram of the connection of the side wall plates of the sound insulation housing in one or some embodiments of the present invention; Figure 8 is a cross-sectional view of the structure of the top wall plate of the sound insulation housing in one or some embodiments of the present invention.

[0018] Explanation of the reference numerals in the drawings: 1 - main frame, 2 - top wall plate, 3 - side wall plate, 4 - observation window, 5 - bottom cross beam, 6 - vertical beam, 7 - top cross beam, 8 - hinge, 9 - door lock, 10 - pressing plate, 11 - handle, 12 - right-angle rubber strip, 13 - sealing rubber strip, 14 - outer plate, 15 - honeycomb aluminum plate, 16 - damping coating, 17 - intermediate partition, 18 - glass wool, 19 - perforated plate, 20 - rivet, 21 - gasket, 22 - inner hexagon socket head cap bolt assembly, 23 - outer hexagon socket head cap bolt assembly, 24 - closing plate, 25 - extension plate. Detailed Embodiments

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0020] The purpose of the present invention is to provide a sound insulation housing to solve the problems existing in the above-mentioned prior art, which is convenient to disassemble, facilitates the daily maintenance work of marine diesel engines, and reduces the maintenance time and cost.

[0021] In order to make the above-mentioned objects, features, and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0022] The existing sound insulation housing is of an integral structure, with a switch door provided on one side. Only the part of the diesel engine located at the position of the switch door can be repaired. When repairing other parts of the diesel engine, the sound insulation housing is not convenient to disassemble and assemble, increasing the time for repairing and maintaining the diesel engine. To solve this problem, the present invention provides a sound insulation housing, such as Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 and Figure 8As shown in the figure, it includes a main body frame 1, a top wall panel 2, side wall panels 3 and a sound insulation component. The main body frame 1 is made of rectangular tubes or circular tubes. In other embodiments, a solid rod-like structure can also be used to manufacture the main body frame 1, so that the strength of the main body frame 1 is higher and it is more suitable for bumpy use environments such as ships. Of course, considering the relatively large weight of the solid structure, in one embodiment, a lightweight rod with good hardness can be used to manufacture the main body frame 1. The specific material is not limited and can be flexibly selected according to needs. In another embodiment, the main body frame 1 can also be omitted, and each wall panel can be directly connected to each other to form the housing structure of the present invention. By omitting the main body frame 1 structure, material savings and weight reduction are achieved; multiple top wall panels 2 are arranged closely in sequence on the top of the main body frame 1. The top wall panel 2 is connected to the main body frame 1 through a top connector, and each top wall panel 2 can be disassembled; multiple side wall panels 3 are arranged in a ring sequence on the side of the main body frame 1. The side wall panel 3 is connected to the main body frame 1 through a side connector, and each side wall panel 3 can be disassembled; the sound insulation components are respectively fixed on the inner sides of the top wall panel 2 and the side wall panel 3. The sound insulation housing of the present invention is a split structure. Multiple detachable top wall panels 2 are arranged in sequence on the top of the main body frame 1, and multiple detachable side wall panels 3 are arranged in sequence on the side wall of the main body frame 1. When overhauling the internal marine diesel engine, only the top wall panel 2 or the side wall panel 3 at the position to be overhauled needs to be disassembled, which is convenient for disassembly and assembly and reduces the maintenance time.

[0023] The structure of the present invention is stable, with high reliability and good sound insulation effect; in the design, a split and detachable structure is adopted to ensure the needs of daily maintenance of the diesel engine; the main body frame 1 of the present invention adopts a rectangular tube connection form to ensure the stable structure and safe operation of the sound insulation housing during ship navigation.

[0024] For more convenient disassembly and assembly, in one embodiment, the main frame 1 is divided into a bottom cross beam 5, a top cross beam 7 and vertical beams 6. The top cross beam 7 and the bottom cross beam 5 are arranged in parallel. The top cross beam 7 includes a first connecting rod and a second connecting rod. A plurality of first connecting rods are arranged in parallel in sequence. One end of the plurality of first connecting rods is fixedly connected through a second connecting rod, and the other end of the plurality of first connecting rods is fixedly connected through another second connecting rod. Thus, through the plurality of first connecting rods and the second connecting rod, the top cross beam 7 is integrally formed into a plurality of juxtaposed rectangular frame structures. The bottom cross beam 5 has the same structure as the top cross beam 7, and a plurality of vertically arranged vertical beams 6 are fixedly connected between the second connecting rod of the top cross beam 7 and the second connecting rod of the bottom cross beam 5 on the same side by internal hexagonal cylinder bolt assemblies 22 and gaskets 21; the gasket 21 is molded according to the structural shape and has a good sealing effect; a top wall plate 2 is provided between two adjacent first connecting rods of the top cross beam 7, and a side wall plate 3 is provided between two adjacent vertical beams 6. A plurality of side wall plates 3 are used to enclose the main frame 1 on all sides, and cooperate with a plurality of top wall plates 2 at the top, so that a closed space is formed inside the main frame body. The sound insulation components on the inner sides of the side wall plates 3 and the top wall plates 2 can reduce the noise of the marine diesel engine inside the main frame 1.

[0025] In one embodiment, the bottom cross beam 5, the top cross beam 7 and the vertical beams 6 are connected into one body by fixed welding. In other embodiments, in order to be more convenient for disassembly on the premise of ensuring its overall firmness, the bottom cross beam 5, the top cross beam 7 and the vertical beams 6 can be connected by snap connection or pin connection, or holes and grooves can be distributed and arranged at the corresponding positions of the bottom cross beam 5, the top cross beam 7 and the vertical beams 6, and then the bottom cross beam 5, the top cross beam 7 and the vertical beams 6 are sequentially assembled and connected. This connection method makes the connection positions of the bottom cross beam 5, the top cross beam 7 and the vertical beams 6 more compact, and plays a certain auxiliary sound insulation effect.

[0026] In one embodiment, to facilitate the installation of the sound insulation component, the top wall panel 2 is designed to include an outer panel 14 with a thickness of 2 mm and a perforated panel 19 with a thickness of 1 mm. A sound insulation component with a thickness of 65 mm is fixedly arranged between the outer panel 14 and the perforated panel 19. The perforated panel 19 is located on the inner side, and a plurality of holes are formed therein. The perforation rate of the perforated panel 19 is 45%, and the aperture of the holes is 6 mm. The specific dimensions of the top wall panel 2, the outer panel 14, and the sound insulation component are not limited herein. The above is only one example. In other embodiments, the dimensions of the top wall panel 2, the outer panel 14, the holes, and the sound insulation component can be flexibly adjusted according to the actual structure and specific conditions; the noise generated by the diesel engine can enter the sound insulation component through the holes to achieve the noise reduction function; a closing plate 24 perpendicular to the outer panel 14 is provided at the end of the sound insulation component. One end of the closing plate 24 is fixedly connected to the outer panel 14. An extension plate 25 is integrally formed at the end of the outer panel 14. The sound insulation component is not provided inside the extension plate 25, so that the inside of the extension plate 25 can be connected to the corresponding top cross beam 7. To facilitate disassembly, a handle 11 is fixedly provided on the outer side of the top wall panel 2, which is convenient to open the top wall panel 2 by using the handle 11.

[0027] To make the connection of the top wall panel 2 more firm, the top connecting member in this embodiment includes a pressing plate 10. The pressing plate 10 is fixedly connected to the top cross beam 7 through an external hexagonal socket head cap bolt assembly 23. The end of the pressing plate 10 is a structure inclined inward. This inwardly inclined structure abuts against the outer side of the corresponding extension plate 25 to fix the top wall panel 2. To make the sealing performance better at the fixed position and avoid the transmission of noise, a right-angle rubber strip 12 is provided inside the extension plate 25. The inside of the extension plate 25 is hermetically connected to the corresponding top cross beam 7 through the right-angle rubber strip 12. The right-angle rubber strip 12 is an ethylene propylene diene monomer (EPDM) material equilateral right-angle rubber strip 12, and the thickness of each side is 20 mm. One side of the right-angle rubber strip 12 is located at the position of the extension plate 25 and the corresponding top cross beam 7, and the other side is attached to the position of the closing plate 24 at the end of the sound insulation component, with good sealing performance. To simplify the structure, in other embodiments, the closing plate 24 can also be removed, and the other side of the right-angle rubber strip 12 directly abuts against the end of the sound insulation component, which can also achieve the sealing effect. In addition, the right-angle rubber strip 12 can be replaced with other structural sealing components. For example, a sealing ring or other shaped sealing strips can be used, which can also achieve the sealing at the above positions. Even if the right-angle rubber strip 12 structure is adopted, the dimensions of the right-angle rubber strip 12 in the present invention are not limited to the above thickness dimensions only. The actual thickness of the right-angle rubber strip 12 can be flexibly selected according to the actual situation as long as it meets the sealing requirements.

[0028] The side connectors in this embodiment include a hinge 8 and a door lock 9. One side of the side wall panel 3 is hinged to the adjacent vertical beam 6 through the hinge 8, and a door lock 9 is provided on the other side of the side wall panel 3. The other side of the side wall panel 3 can be fixedly connected to the adjacent vertical beam 6 by using the door lock 9. The specific structure of the door lock is not limited. In one embodiment, the door lock adopts a lock pin structure, and a lock hole is provided on the vertical beam 6. By inserting the lock pin into the corresponding lock hole, the locking function between the side wall panel 3 and the corresponding vertical beam 6 can be realized. In another embodiment, the door lock 9 adopts a snap structure, that is, a convex block is provided on the side wall panel, and a groove is provided on the vertical beam 6. By buckling the convex block into the corresponding groove, the locking between the side wall panel 3 and the corresponding vertical beam 6 can also be realized; in addition, an existing chain lock can also be used to realize the locking of the two; a sealing rubber strip 13 is provided between two adjacent side wall panels 3. The sealing rubber strip 13 is an O-shaped rubber strip, which can seal the gap between two adjacent side wall panels 3 to ensure that noise will not escape from the gap. In order to facilitate understanding the state of the diesel engine inside the present invention, an observation window 4 is provided on the side wall panel 3. The observation window 4 is made of double-layer tempered glass with fire prevention function. The thickness of the first layer of tempered glass is 6 mm, and the thickness of the second layer of tempered glass is 8 mm. The double-layer structure has a sound insulation effect. The tempered glass is sealed with the side wall panel 3 frame by using a grooved rubber strip, which ensures the overall sealing performance and further improves the sound insulation function.

[0029] In order to improve the noise reduction effect, the sound insulation component in this embodiment includes a honeycomb aluminum plate 15, a damping coating 16, an intermediate partition 17 and glass wool 18. One side of the honeycomb aluminum plate 15 is connected to the inner side of the top wall panel 2 or the inner side of the side wall panel 3. The overall thickness of the honeycomb aluminum plate 15 is 10 mm. The core material of the honeycomb aluminum plate 15 is a hexagonal honeycomb core structure made of aluminum foil, and the thickness of the aluminum foil is 0.04 mm. On the premise of ensuring the sound insulation effect, the overall size is reduced as much as possible, making the overall structure of the equipment of the present invention more compact; on the other side of the honeycomb aluminum plate 15, a damping coating 16 and a 1-mm-thick intermediate partition 17 are provided in sequence. Glass wool 18 is filled between the inner side of the intermediate partition 17 and the damping coating 16 and on the outer side of the intermediate partition 17. In order to keep the glass wool 18 in a fixed state, the intermediate partition 17 and the glass wool 18 are fixedly connected by using rivets 20. The damping coating 16 is a special coating made of polymer resin, filler and auxiliary materials, which can be coated on the surface of substrates such as metals and has multiple functions such as vibration damping, noise reduction, heat insulation and sealing. Through the internal friction of the viscoelastic material, the mechanical vibration energy is converted into heat energy and dissipated, thereby reducing the vibration amplitude. Its structure is divided into two types: Free damping structure: directly paste the damping layer on the surface of the substrate, and the damping layer generates tensile and compressive deformation energy consumption during vibration. Constrained damping structure: paste a high-modulus elastic layer on the outside of the damping layer, and the elastic layer restricts the damping layer to generate shear deformation during vibration, further consuming energy.

[0030] The sound insulation component adopts a multi-layer sound insulation structure. The honeycomb aluminum plate 15, damping coating 16 and glass wool 18 filled in the middle can effectively absorb and disperse the sound wave energy, reduce the noise propagation. While ensuring the sound insulation quantity, the non-metallic sound insulation material reduces the overall weight of the equipment and realizes the lightweight function.

[0031] The sound insulation cover of the present invention is of a split structure. A plurality of detachable top wall plates are arranged in sequence at the top of the main body frame, and a plurality of detachable side wall plates are arranged in sequence on the side walls of the main body frame. When overhauling the internal marine diesel engine, only the top wall plate or side wall plate at the position to be overhauled needs to be disassembled, which is convenient for disassembly and assembly and reduces the maintenance time.

[0032] In the present invention, specific examples are used to elaborate on the principle and implementation manner of the present invention. The description of the above embodiments is only used to help understand the method and its core idea of the present invention; at the same time, for those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present invention.

Claims

1. A sound insulation enclosure, characterized in that: include: Main frame; A top wall plate, wherein a plurality of the top wall plates are sequentially and closely arranged on the top of the main frame, the top wall plates are connected to the main frame via a top connecting piece, and each of the top wall plates can be disassembled; Side wall panels, a plurality of the side wall panels are sequentially arranged around the sides of the main frame, the side wall panels are connected to the main frame via side connectors, and each of the side wall panels can be removed; The sound insulation components are respectively fixed on the inner sides of the top wall plate and the side wall plate.

2. The sound insulation enclosure according to claim 1, characterized in that: The main frame includes a bottom crossbeam, a top crossbeam and a vertical beam, the top crossbeam and the bottom crossbeam are arranged in parallel, and the top crossbeam and the bottom crossbeam are fixedly connected by a plurality of vertically arranged vertical beams; the top wall panels are sequentially laid on the top crossbeam, the side wall panels are connected to the vertical beams, and the top of the side wall panels is sealed against the top crossbeam, and the bottom of the side wall panels is sealed against the bottom crossbeam.

3. The sound insulation enclosure according to claim 2, characterized in that: The top crossbeam includes a first connecting rod and a second connecting rod, and a plurality of the first connecting rods are arranged in parallel in sequence. One end of the plurality of the first connecting rods is fixedly connected by a second connecting rod, and the other end of the plurality of the first connecting rods is fixedly connected by another second connecting rod; the bottom crossbeam and the top crossbeam have the same structure; the vertical beam is connected between the second connecting rod of the top crossbeam and the second connecting rod of the bottom crossbeam located on the same side.

4. The sound insulation enclosure according to claim 3, characterized in that: A top wall plate is provided between two adjacent first connecting rods of the top cross beam, and a side wall plate is provided between two adjacent vertical beams.

5. The sound insulation enclosure according to claim 2, characterized in that: The top wall plate includes an outer plate, the sound insulation assembly is fixedly provided on the inner side of the outer plate, a closing plate arranged perpendicularly to the outer plate is provided at the end of the sound insulation assembly, one end of the closing plate is fixedly connected to the outer plate, an extension plate is integrally formed at the end of the outer plate, the inner side of the extension plate is connected to the corresponding top cross beam; the top connecting member includes a pressing plate fixedly connected to the top cross beam, and the end of the pressing plate abuts against the outer side of the corresponding extension plate.

6. The sound insulation enclosure according to claim 5, characterized in that: The top wall plate also includes a perforated plate, a plurality of holes are formed on the perforated plate, and the perforated plate is fixedly connected to the side of the sound insulation component away from the outer plate.

7. The sound insulation enclosure according to claim 2, characterized in that: The side connecting member comprises a door lock, one side of the side wall plate is hinged to the adjacent vertical beam, and the other side of the side wall plate is fixedly connected to the adjacent vertical beam through the door lock; a sealing strip is provided between two adjacent side wall plates.

8. The sound insulation enclosure according to claim 5, characterized in that: A right-angle rubber strip is provided on the inner side of the extension plate, and the inner side of the extension plate is sealed and connected to the corresponding top cross beam through the right-angle rubber strip.

9. The sound insulation enclosure according to claim 1, characterized in that: The sound insulation component includes a honeycomb aluminum plate, a damping coating, a middle partition and glass wool. One side of the honeycomb aluminum plate is connected to the inner side of the top wall plate or the inner side of the side wall plate, and the other side of the honeycomb aluminum plate is provided with the damping coating and the middle partition in sequence. The glass wool is filled between the inner side of the middle partition and the damping coating and the outer side of the middle partition.

10. The sound insulation enclosure according to claim 1, characterized in that: A handle is fixedly provided on the outer side of the top wall plate; an observation window is provided on the side wall plate, and the observation window is made of double-layer tempered glass.

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