CN109774262B - Composite sound insulation wall plate for ship cabin division - Google Patents
Composite sound insulation wall plate for ship cabin division Download PDFInfo
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- CN109774262B CN109774262B CN201910194142.9A CN201910194142A CN109774262B CN 109774262 B CN109774262 B CN 109774262B CN 201910194142 A CN201910194142 A CN 201910194142A CN 109774262 B CN109774262 B CN 109774262B
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Abstract
A composite sound insulation wallboard for ship cabin division comprises a lower panel, wherein a rock wool layer is arranged on the upper portion of the lower panel, a micro-perforated plate is arranged above the rock wool layer at a spacing distance, a glass wool layer is arranged above the micro-perforated plate, an upper panel is arranged on the top surface of the glass wool layer, the upper panel is parallel to the lower panel, side panels are welded on two sides of the upper panel and the lower panel respectively, meanwhile, two sides of the rock wool layer and two sides of the glass wool layer are bonded with the side panels, and two sides of the micro-perforated plate are welded with the side panels; the space between the upper part of the rock wool layer and the micro-perforated plate forms an air layer. Based on the transmission and reflection mechanism in the air sound wave transmission, the impedance mismatch is realized by using the structural forms with different material densities and thicknesses on two sides, the structural shape of the low-density glass wool is kept through the micro-perforated plate, the sound absorption effect of the low frequency below 1000Hz is improved, and finally the total sound insulation of the structure is improved.
Description
Technical Field
The invention relates to the technical field of ship cabin noise control, in particular to a composite sound insulation wall plate for ship cabin segmentation.
Background
Ships, a collective term for various ships. A ship is a vehicle which can be sailed or moored in a water area for transportation or operation, and has different technical performances, equipment and structural types according to different use requirements.
A ship is a man-made vehicle that operates primarily in geographic water. The interior mainly comprises a containment space, a support structure and a drainage structure, with a propulsion system using an external or self-contained energy source. The appearance is generally favorable for overcoming the streamline envelope of the fluid resistance, the materials are continuously updated along with the technological progress, the early materials are natural materials such as wood, bamboo, hemp and the like, and the modern materials are mostly steel, aluminum, glass fiber, acrylic and various composite materials.
In the process of building a ship, a cabin is generally divided into living or working room units by using a composite sound insulation plate, and the composite sound insulation plate needs to meet a series of functions such as fire prevention, heat insulation, heat preservation, sound insulation and the like.
At present, the cabin compartment plate on the market is made of 25mm and 50mm composite rock wool plate materials, has a structural form that rock wool core materials are clamped between steel plates on two sides, and is characterized by low cost and mature process; the defect is that the used rock wool has higher density of about 150-160 kg/m3(ii) a The sound insulation value of a common 50mm composite rock wool board is about 30-35 dB, and the requirement of MSC.337(91) on the sound insulation quantity of a living cabin and a living cabin is 35dB cannot be met.
At present, materials such as polyimide, phenolic materials, long glass fiber/flame-retardant nylon, aramid fiber honeycombs and the like are widely applied to the fields of buildings, ground traffic and the like, but the fireproof performance cannot meet the B15 grade requirement of ships.
Disclosure of Invention
The applicant provides a composite sound insulation wallboard for ship cabin segmentation aiming at the defects in the prior art, so that the bending rigidity is improved under the condition of ensuring that the total thickness and the total mass of the composite sound insulation board structure are not changed, the weighted sound insulation quantity is improved from about 35dB to 43dB, and the sound insulation effect is greatly improved.
The technical scheme adopted by the invention is as follows:
a composite sound insulation wallboard for ship cabin division comprises a lower panel, wherein a rock wool layer is arranged on the upper portion of the lower panel, a micro-perforated plate is arranged above the rock wool layer at a spacing distance, a glass wool layer is arranged above the micro-perforated plate, an upper panel is arranged on the top surface of the glass wool layer, the upper panel is parallel to the lower panel, side panels are welded on two sides of the upper panel and the lower panel respectively, meanwhile, two sides of the rock wool layer and two sides of the glass wool layer are bonded with the side panels, and two sides of the micro-perforated plate are welded with the side panels; the space between the upper part of the rock wool layer and the micro-perforated plate forms an air layer.
The further technical scheme is as follows:
the upper panel and the lower panel are identical in structure and are made of galvanized steel plates.
The thickness of the upper panel and the lower panel is 0.6 mm.
The rock wool layer has a thickness of 20mm and a density of 120kg/m3。
The thickness of the glass wool layer is 23.2mm, and the density is 64kg/m3。
The thickness of the air layer is 5 mm.
Evenly spaced on the micropunch plate has a plurality of through-holes, and the micropunch plate thickness is 0.6mm, the aperture of through-hole is 3mm, and the perforation rate of micropunch plate is 15%.
The invention has the following beneficial effects:
the invention has compact and reasonable structure and convenient manufacture, adopts the glass wool and the rock wool as core materials, adopts the galvanized steel plate as a panel, adopts the micro-perforated plate to restrain and fix the glass wool, and adopts an air layer between the rock wool and the micro-perforated plate. In the inner structure, the thickness of the air layer is 5mm, the thicknesses of rock wool and glass wool are respectively 20mm and 23.2mm, the two side panels are 0.6mm, and the thickness of the micro-perforated plate is 0.6 mm. The density of the rock wool is 120kg/m3The density of the glass wool is 64kg/m3The diameter of the hole of the microperforated plate was 3mm, and the perforation rate was 15%.
The structure of the invention is based on the transmission and reflection mechanism in the air sound wave transmission, realizes impedance mismatching by using the structural forms with different material densities and thicknesses on two sides, keeps the structural shape of the low-density glass wool through the micro-perforated plate, improves the sound absorption effect of low frequency below 1000Hz, and finally improves the total sound insulation of the structure.
The invention has simple structure, improves the bending rigidity of the wall plate, and weights the sound insulation quantity to 43 dB.
The design of the upper panel and the lower panel is respectively arranged at the topmost end and the lowest end of the whole composite sound insulation wall panel, and a sandwich composite structure consisting of a double-layer thin plate structure and an internal core material has higher bending rigidity and simultaneously has sound insulation larger than a single-layer panel structure with double thickness.
The upper panel and the lower panel adopt galvanized steel sheets, so that the anti-corrosion performance can be realized.
The glass wool layer is an inorganic fiber, has the advantages of small density, thermal conductivity , heat insulation, corrosion resistance, stable chemical performance and the like, and is a common sound absorption material for ships. The lowest molding density of the glass wool layer is smaller than that of rock wool, and the glass wool layer can increase energy absorption in the sound wave transmission process and control the total weight of the structure.
The air layer can make sound wave generate multiple reflection and transmission on the interface of the air layer and the glass wool and rock wool layer, increase energy loss and greatly improve sound insulation performance.
The micro-perforated plate can restrain the low-density glass wool, prevent the glass wool layer from deforming and collapsing when the micro-perforated plate is erected for a long time, and keep the thickness of the air layer consistent; the micro-perforated plate and the air cavity form a perforated plate resonance sound absorption structure, when the incident sound wave frequency is consistent with the resonance frequency of the sound absorption structure, an absorption peak value appears, and the rock wool and the glass wool layer can increase the width of a sound absorption frequency band.
The rock wool layer is an inorganic fiber, has the advantages of low thermal conductivity, heat preservation and insulation, corrosion resistance, stable chemical performance and the like, is a common heat preservation and insulation material for ships, and also has certain sound absorption performance. The rock wool layer can be used for increasing energy absorption in the sound wave transmission process, impedance mismatch is realized by utilizing the inconsistency of the density and the thickness of the glass wool and the rock wool, and the transmission loss is increased.
The upper panel and the lower panel are connected with the two side panels, and the wall panel structure is integrated, so that the wall panel is convenient to transport, store and install.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
FIG. 2 is a top view of a microperforated panel of the present invention.
Wherein: 1. an upper panel; 2. a glass wool layer; 3. an air layer; 4. a micro-perforated plate; 401. a through hole; 5. a rock wool layer; 6. a lower panel; 7. and a side panel.
Detailed Description
The following describes embodiments of the present invention with reference to the drawings.
As shown in fig. 1 and 2, the composite sound-insulation wall panel for dividing the ship cabin of the present embodiment includes a lower panel 6, a rock wool layer 5 is disposed on the upper portion of the lower panel 6, a micro-perforated plate 4 is disposed above the rock wool layer 5 at a distance, a glass wool layer 2 is disposed above the micro-perforated plate 4, an upper panel 1 is disposed on the top surface of the glass wool layer 2, the upper panel 1 is parallel to the lower panel 6, side panels 7 are respectively welded on two sides of the upper panel 1 and the lower panel 6, meanwhile, two sides of the rock wool layer 5 and the glass wool layer 2 are bonded to the side panels 7, and two sides of the micro-perforated plate 4 are welded to the side; the space between the upper part of the rock wool layer 5 and the micro-perforated plate 4 forms an air layer 3.
The upper panel 1 and the lower panel 6 have the same structure and are made of galvanized steel sheets.
The upper panel 1 and the lower panel 6 are each 0.6mm thick.
The thickness of the rock wool layer 5 is 20mm, and the density is 120kg/m3。
The glass wool layer 2 has a thickness of 23.2mm and a density of 64kg/m3。
The air layer 3 has a thickness of 5 mm.
A plurality of through holes 401 are uniformly spaced on the micro-perforated plate 4, the thickness of the micro-perforated plate 4 is 0.6mm, the aperture of each through hole 401 is 3mm, and the perforation rate of the micro-perforated plate 4 is 15%.
The shape of the through-hole 401 may be circular, oval, diamond, oblong, trapezoidal, or the like.
The glass wool layer 2 and the rock wool layer 5 are respectively adhered to the upper panel 1 and the lower panel 6 through adhesives. The distance between the two side panels 7 is 550mm and the height can be customized.
In the actual manufacturing process, prepare each plate earlier, with specialized tool tiling panel 6 down, the both sides of panel 6 are installed rather than vertically side board 7 respectively down, rock wool layer 5 is cohered in panel 6's top down, install micro-perforated plate 4 at 5 upper portions of rock wool layer interval one section distance, form air bed 3 between 4 bottom surfaces of micro-perforated plate and the above-mentioned rock wool layer 5, cohere the cotton layer 2 of glass at the top surface of micro-perforated plate 4, panel 1 is installed to the top surface on the cotton layer 2 of glass. The manufacturing is convenient, and the working efficiency is high.
The above description is intended to be illustrative and not restrictive, and the scope of the invention is defined by the appended claims, which may be modified in any manner within the scope of the invention.
Claims (1)
1. The utility model provides a compound sound insulation wallboard of usefulness is cut apart to boats and ships cabin which characterized in that: the multifunctional plate comprises a lower panel (6), wherein a rock wool layer (5) is arranged on the upper portion of the lower panel (6), a micro-perforated plate (4) is arranged above the rock wool layer (5) at a spacing distance, a glass cotton layer (2) is arranged above the micro-perforated plate (4), an upper panel (1) is arranged on the top surface of the glass cotton layer (2), the upper panel (1) is parallel to the lower panel (6), side panels (7) are respectively welded on two sides of the upper panel (1) and the lower panel (6), meanwhile, two sides of the rock wool layer (5) and the glass cotton layer (2) are bonded with the side panels (7), and two sides of the micro-perforated plate (4) are welded with the side panels (7); an air layer (3) is formed between the upper part of the rock wool layer (5) and the micro-perforated plate (4); the upper panel (1) and the lower panel (6) have the same structure and are both made of galvanized steel sheets; the thicknesses of the upper panel (1) and the lower panel (6) are both 0.6 mm; the thickness of the rock wool layer (5) is 20mm, and the density is 120kg/m3(ii) a The thickness of the glass wool layer (2) is 23.2mm, and the density is 64kg/m3(ii) a The thickness of the air layer (3) is 5 mm; evenly spaced on microperforated panel (4) has a plurality of through-holes (401), and the thickness of microperforated panel (4) is 0.6mm, the aperture of through-hole (401) is 3mm, and the perforation rate of microperforated panel (4) is 15%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910194142.9A CN109774262B (en) | 2019-03-14 | 2019-03-14 | Composite sound insulation wall plate for ship cabin division |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910194142.9A CN109774262B (en) | 2019-03-14 | 2019-03-14 | Composite sound insulation wall plate for ship cabin division |
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| Publication Number | Publication Date |
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| CN109774262A CN109774262A (en) | 2019-05-21 |
| CN109774262B true CN109774262B (en) | 2020-09-25 |
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| CN201910194142.9A Active CN109774262B (en) | 2019-03-14 | 2019-03-14 | Composite sound insulation wall plate for ship cabin division |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110733210A (en) * | 2019-10-30 | 2020-01-31 | 无锡德林防务装备股份有限公司 | Marine high-efficient abatvoix |
| CN112901042A (en) * | 2021-02-22 | 2021-06-04 | 上海声望声学科技股份有限公司 | Ultra-large electrically driven sound insulation door structure of wind tunnel anechoic chamber |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1332096C (en) * | 2005-01-20 | 2007-08-15 | 上海交通大学 | Double-face sound-absorbing contacting oral cavity sound shield without cotton |
| CN2787715Y (en) * | 2005-04-22 | 2006-06-14 | 北京丰越达工贸有限公司 | Assembled sound-adsorbing and sound-insulating barrier |
| CN101761143A (en) * | 2009-11-13 | 2010-06-30 | 无锡市海联舰船附件有限公司 | Sound-insulation wallboard |
| CN102296715A (en) * | 2011-08-31 | 2011-12-28 | 周国柱 | Sound insulation structure with perforated plate |
| CN204054849U (en) * | 2014-09-03 | 2014-12-31 | 江苏海事职业技术学院 | Sound panel |
| CN205654007U (en) * | 2016-04-12 | 2016-10-19 | 庄锴炜 | Environment -friendly decorative board |
| CN109036364A (en) * | 2018-07-28 | 2018-12-18 | 苏州嘉迈德电子科技有限公司 | A kind of sound-insulation metal plate |
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