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Bulkhead sound insulation and thermal insulation composite structure

A composite structure and bulkhead technology, which is applied in sound insulation, building components, building structures, etc., can solve the problems that bulkheads cannot satisfy sound insulation and light weight at the same time, and achieve the effects of increasing rigidity, reducing weight, and blocking heat transmission

Inactive Publication Date: 2019-02-12
725TH RES INST OF CHINA SHIPBUILDING INDAL CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a bulkhead sound insulation and heat insulation composite structure to solve the problem that the bulkhead in the prior art cannot meet the requirements of sound insulation and light weight at the same time during heat insulation treatment

Method used

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  • Bulkhead sound insulation and thermal insulation composite structure
  • Bulkhead sound insulation and thermal insulation composite structure
  • Bulkhead sound insulation and thermal insulation composite structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The materials and parameters of each layer are as follows: the first panel 1 and the second panel 7 are both steel plates with a thickness of 0.3mm; the first honeycomb panel 2 and the second honeycomb panel 6 are both aluminum honeycomb panels with a thickness of 5mm and a side length of 5mm; The perforated plate 3 and the second perforated plate 5 are both 0.3 mm thick steel plates, and the perforated shape is a round hole with a diameter of 1.5 mm and a perforation rate of 2%; the heat insulating material layer 4 is a glass wool heat insulating plate with a thickness of 40 mm. Press each layer of boards figure 1 Bonding and compounding were carried out, and the adhesive used conventional commercial adhesives to prepare test samples of the bulkhead composite structure. The sound insulation test was carried out using GB / T 19889.3-2005, and the weighted sound insulation was 36dB.

Embodiment 2

[0025] The materials and parameters of each layer are as follows: the first panel 1 and the second panel 7 are steel plates with a thickness of 0.6mm; the first honeycomb panel 2 and the second honeycomb panel 6 are aluminum honeycomb panels with a thickness of 10mm and a side length of 10mm; the first perforation The plate 3 and the second perforated plate 5 are both 0.3mm thick steel plates, the perforated shape is a round hole, the hole diameter is 2mm, and the perforation rate is 3%; the heat insulation material layer is a 50mm thick mineral wool heat insulation board. Press each layer of boards figure 1 Bonding and compounding are carried out, and the adhesive is conventional commercially available adhesives, and the bulkhead composite structure test sample is prepared, and the sound insulation test is carried out on it according to GB / T 19889.3-2005, and the weighted sound insulation value of the test is 43dB.

Embodiment 3

[0027] The materials and parameters of each layer are as follows: the first panel 1 is a steel plate with a thickness of 2mm; the first honeycomb panel 2 is an aluminum honeycomb panel with a thickness of 10mm and a side length of 10mm; the first perforated plate 3 is a 0.5mm thick steel plate, and the perforation shape is a round hole , aperture 4mm, perforation rate 6%; thermal insulation material layer is 80mm thick mineral wool insulation board, the second perforated plate 5 is 0.3mm thick steel plate, perforation shape is round hole, aperture 3mm, perforation rate 3%; The second honeycomb panel 6 is an aluminum honeycomb panel with a thickness of 10 mm and a side length of 10 mm; the second panel 7 is a steel plate with a thickness of 0.3 mm. Press each layer of boards figure 1 Bonding and compounding were carried out, and the adhesive used conventional commercial adhesives to prepare test samples of the bulkhead composite structure. The sound insulation test was carried ...

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Abstract

The invention provides a bulkhead sound insulation and thermal insulation composite structure. The bulkhead sound insulation and thermal insulation composite structure comprises a first panel, a firstcellular board, a first perforated board, a thermal insulation material layer, a second perforated board, a second cellular board and a second panel, wherein the first panel, the first cellular board, the first perforated board, the thermal insulation material layer, the second perforated board, the second cellular board and the second panel are sequentially connected in a bonding mode. A resonance sound absorption structure is formed in the composite structure, the sound absorption performance is improved obviously, compared with a traditional bulkhead structure, and the sound absorption performance of the composite structure is improved obviously due to the fact that sound absorption action enables sound waves penetrating through the composite structure to be reduced effectively. Meanwhile, the introduction of a cellular structure plays a role of obstructing heat transmission, the thermal insulation performance of the composite structure is improved, the rigidity of the composite structure is greatly improved, requirements for a supporting structure are greatly relieved, installation and application are facilitated, and the weight of a total structure is reduced. Compared with an existing sound insulation structure, the thermal insulation material layer is additionally arranged in the composite structure, and the thermal insulation performance of the integral structure is greatly improved and the sound insulation performance of the integral structure can be obviously improved at the same time.

Description

technical field [0001] The invention relates to a sound-insulation and heat-insulation structure, in particular to a bulkhead sound-insulation and heat-insulation composite structure. Background technique [0002] With the continuous improvement of the noise environment requirements for cabins, the sound insulation performance of cabin bulkheads such as ships and offshore platforms needs to be continuously improved while meeting the original heat insulation and fire prevention requirements. According to the mass law, increasing the surface density of the bulkhead can improve its sound insulation performance, but the sound insulation performance can only be improved by 6dB if the weight is doubled, which is very unfavorable for the weight reduction of ships and offshore platforms, and the improvement of sound insulation performance is also very limited. Adding a layer of air layer inside the wall panel is a common method to improve the sound insulation performance, but when t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B1/90E04B1/76
CPCE04B1/7612E04B1/90E04B2001/8433Y02A30/244
Inventor 任伟伟樊宁波乔冬平
Owner 725TH RES INST OF CHINA SHIPBUILDING INDAL CORP
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