Noise reduction green belt constructed with photonic crystal

A technology of phononic crystals and green belts, applied in application, cultivation, agriculture, etc., can solve problems such as complex structures and poor greening effects, and achieve the effects of reducing interface reflection, ensuring greening, and purifying the air

Active Publication Date: 2017-02-22
STATE GRID JIANGXI ELECTRIC POWER CO LTD RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In terms of sound insulation and noise reduction of green belts, there are few current studies. For example, the announcement number CN205399249U discloses a kind of vegetation noise reduction and sound insulation wall for municipal construction. good

Method used

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  • Noise reduction green belt constructed with photonic crystal
  • Noise reduction green belt constructed with photonic crystal
  • Noise reduction green belt constructed with photonic crystal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The sound-insulating and noise-reducing green belt constructed of phononic crystals in this embodiment is composed of several units, one unit is composed of 32 trees, and the number of its lattice coefficients is two types, which are planted according to the following array; five rows are arranged in rectangles, and the width The middle row in the direction only has one variety at both ends, and the rest has a cavity. There are two rows from both sides of the cavity in the width direction, and each row is 8 and 7 in turn. The outer rows of trees are slightly more spaced. The number of units is determined according to the length of the green belt.

Embodiment 2

[0021] The sound-insulating and noise-reducing green belt constructed of phononic crystals in this embodiment is composed of several units, one unit is composed of 86 trees, and the number of its lattice coefficients is three, planted according to the following array method; seven rows are arranged in a rectangular shape, and the width The middle row in the direction only has one variety at both ends, and the rest have cavities. In the width direction, there are three rows from both sides of the cavity, and each row is 15, 14 and 13 from the outside to the inside. The number of units is determined according to the length of the green belt.

Embodiment 3

[0023] The sound-insulating and noise-reducing green belt constructed of phononic crystals in this embodiment is composed of several units, one unit is composed of 118 trees, and the number of its lattice coefficients is four, planted according to the following array; nine rows are arranged in a rectangular shape, and the width The middle row in the direction only has one variety at both ends, and the rest have cavities. In the width direction, there are four rows from both sides of the cavity, and each row is 16, 15, 14 and 13 from outside to inside. . The number of units is determined according to the length of the green belt.

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Abstract

Provided is a noise reduction green belt constructed with photonic crystal, the green belt is constructed with a certain amount of trees planted according to a special array approach, and the array constitutes a definite photonic crystal structure. In the noise reduction green belt constructed with photonic crystal, the diffuser (1) is of green grass and trees, and the base (2) is air. The special array is a rectangular shape structure, and arranged in parallel by order using 2n rows of trees, the n rows of mutually parallel trees form a group, an empty row space of trees is left between two groups in n rows of trees, and a rectangular middle cavity (3) is formed, wherein n is 2-5. The said certain amount is 32-180. Crystal lattice coefficients are counted as coefficients of two type, three type, four type, and five type. The hollow cavity design effectively captures incident noise, reduces the out leakage of noise, thus strengthens sound insulation and noise reduction ability; the invention adopts grass and trees as the diffuser, to guarantee the function of green standardization and beautification, air purification, environment protection and energy saving; using air as the base can guarantee the smooth circulation of the air.

Description

technical field [0001] The invention belongs to the technical field of novel sound insulation and noise reduction, and specifically relates to the design of a sound insulation and noise reduction green belt adopting a phonon crystal structure, which is used for sound insulation and noise reduction, beautiful greening, environmental protection and energy saving. Background technique [0002] Noise pollution is currently one of the most important sources affecting the quality of human life. How to effectively control noise pollution has become one of the research hotspots in the field of environmental protection. The materials or structures used in the current sound insulation and noise reduction technical scheme can be mainly divided into three categories: rigid materials (such as the public number CN105863116A discloses a double-layer square steel sound insulation wall structure and its installation method, and the public number CN104805916A discloses a building thermal insu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G17/00
CPCA01G17/005
Inventor 杨爱超朱亮李敏吴宇刘见李东江靳绍平张春强
Owner STATE GRID JIANGXI ELECTRIC POWER CO LTD RES INST
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