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Paralleling-reactor sound-shield sound reduction measuring method and device

A testing method and reactor technology, which are applied to measuring devices, measuring ultrasonic/sonic/infrasonic waves, instruments, etc., can solve the problems of inaccurate calculation and external sound source interference of sound insulation enclosures, and achieve accurate sound intensity levels and improve accuracy. Accurate and reliable effect of degree and sound insulation

Active Publication Date: 2017-05-17
CHINA ELECTRIC POWER RES INST +1
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Problems solved by technology

[0008] In view of this, the present invention proposes a method for testing the sound insulation of a shunt reactor sound insulation cover, aiming at solving the problem of inaccurate calculations caused by external sound source interference when calculating the sound insulation of a sound insulation cover using the sound pressure level difference method in the prior art The problem

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  • Paralleling-reactor sound-shield sound reduction measuring method and device
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Embodiment Construction

[0032] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0033] Method example:

[0034] see figure 1 , figure 1 It is a flow chart of the method for testing the sound insulation of a shunt reactor sound insulati...

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Abstract

The invention provides a paralleling-reactor sound-shield sound reduction measuring method and device. The method includes: measuring first sound intensity level located at the first default distance of a paralleling reactor and calculating sound power level of the paralleling reactor according to the measured first sound intensity level; mounting a sound shield on the paralleling reactor, measuring second sound intensity level at the first default distance of the sound shield and calculating sound power level according to the measured second sound intensity level; determining difference value of the calculated sound power level of the paralleling reactor and the sound power level of the sound shield to be sound reduction of the paralleling-reactor sound shield. The sound reduction is calculated through measurement of the sound intensity levels, sound intensity which is a vector and has directionality is less prone to interference of outer environment, the measured sound intensity is more accurate and reliable, and accuracy in calculation of the sound reduction is improved.

Description

technical field [0001] The invention relates to the technical field of sound environment measurement for power transmission and transformation station engineering, in particular to a method and device for testing the sound insulation of a shunt reactor sound insulation cover. Background technique [0002] The shunt reactor is generally connected between the end of the ultra-high voltage transmission line and the ground, and plays the role of reactive power compensation. However, the noise radiated from the shunt reactor is very large. The sound insulation cover is a commonly used sound insulation structure. In order to reduce the noise radiated from the shunt reactor, a sound insulation cover is usually provided outside the shunt reactor. [0003] The sound insulation of the sound insulation enclosure determines the sound insulation ability of the sound insulation enclosure. At present, the measurement of the sound insulation of the fully enclosed sound insulation enclosure...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01H17/00
CPCG01H17/00
Inventor 周兵倪园王延召胡静竹张建功干喆渊谢辉春张业茂刘兴发李妮
Owner CHINA ELECTRIC POWER RES INST
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